init

.clang-format

@@ -0,0 +1,235 @@
+# yaml-language-server: $schema=https://json.schemastore.org/clang-format.json
+---
+Language:        Cpp
+BasedOnStyle: Microsoft
+AccessModifierOffset: -2
+AlignAfterOpenBracket: Align
+AlignArrayOfStructures: None
+AlignConsecutiveAssignments:
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+  PadOperators: true
+AlignConsecutiveBitFields:
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+  PadOperators: false
+AlignConsecutiveDeclarations:
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+  PadOperators: false
+AlignConsecutiveMacros:
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCompound: false
+  PadOperators: false
+AlignConsecutiveShortCaseStatements:
+  Enabled: false
+  AcrossEmptyLines: false
+  AcrossComments: false
+  AlignCaseColons: false
+AlignEscapedNewlines: Right
+AlignOperands: Align
+AlignTrailingComments:
+  Kind: Always
+  OverEmptyLines: 0
+AllowAllArgumentsOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortEnumsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: All
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: MultiLine
+AttributeMacros:
+  - __capability
+BinPackArguments: true
+BinPackParameters: true
+BitFieldColonSpacing: Both
+BraceWrapping:
+  AfterCaseLabel: false
+  AfterClass: true
+  AfterControlStatement: Always
+  AfterEnum: true
+  AfterFunction: true
+  AfterNamespace: true
+  AfterObjCDeclaration: true
+  AfterStruct: true
+  AfterUnion: false
+  AfterExternBlock: true
+  BeforeCatch: true
+  BeforeElse: true
+  BeforeLambdaBody: false
+  BeforeWhile: false
+  IndentBraces: false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakAfterAttributes: Leave
+BreakAfterJavaFieldAnnotations: false
+BreakArrays: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Custom
+BreakBeforeConceptDeclarations: Always
+BreakBeforeInlineASMColon: OnlyMultiline
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: BeforeColon
+BreakInheritanceList: BeforeColon
+BreakStringLiterals: true
+ColumnLimit: 100
+CommentPragmas: "^ IWYU pragma:"
+CompactNamespaces: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat: false
+EmptyLineAfterAccessModifier: Never
+EmptyLineBeforeAccessModifier: LogicalBlock
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IfMacros:
+  - KJ_IF_MAYBE
+IncludeBlocks: Preserve
+IncludeCategories:
+  - Regex: ^"(llvm|llvm-c|clang|clang-c)/
+    Priority: 2
+    SortPriority: 0
+    CaseSensitive: false
+  - Regex: ^(<|"(gtest|gmock|isl|json)/)
+    Priority: 3
+    SortPriority: 0
+    CaseSensitive: false
+  - Regex: .*
+    Priority: 1
+    SortPriority: 0
+    CaseSensitive: false
+IncludeIsMainRegex: (Test)?$
+IncludeIsMainSourceRegex: ""
+IndentAccessModifiers: false
+IndentCaseBlocks: false
+IndentCaseLabels: false
+IndentExternBlock: AfterExternBlock
+IndentGotoLabels: true
+IndentPPDirectives: None
+IndentRequiresClause: true
+IndentWidth: 4
+IndentWrappedFunctionNames: false
+InsertBraces: false
+InsertNewlineAtEOF: false
+InsertTrailingCommas: None
+IntegerLiteralSeparator:
+  Binary: 0
+  BinaryMinDigits: 0
+  Decimal: 0
+  DecimalMinDigits: 0
+  Hex: 0
+  HexMinDigits: 0
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtEOF: false
+KeepEmptyLinesAtTheStartOfBlocks: true
+LambdaBodyIndentation: Signature
+LineEnding: DeriveLF
+MacroBlockBegin: ""
+MacroBlockEnd: ""
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBinPackProtocolList: Auto
+ObjCBlockIndentWidth: 2
+ObjCBreakBeforeNestedBlockParam: true
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PPIndentWidth: -1
+PackConstructorInitializers: BinPack
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakOpenParenthesis: 0
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyIndentedWhitespace: 0
+PenaltyReturnTypeOnItsOwnLine: 1000
+PointerAlignment: Right
+QualifierAlignment: Leave
+ReferenceAlignment: Pointer
+ReflowComments: true
+RemoveBracesLLVM: false
+RemoveParentheses: Leave
+RemoveSemicolon: false
+RequiresClausePosition: OwnLine
+RequiresExpressionIndentation: OuterScope
+SeparateDefinitionBlocks: Leave
+ShortNamespaceLines: 1
+SortIncludes: CaseSensitive
+SortJavaStaticImport: Before
+SortUsingDeclarations: LexicographicNumeric
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
+SpaceAroundPointerQualifiers: Default
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeJsonColon: false
+SpaceBeforeParens: ControlStatements
+SpaceBeforeParensOptions:
+  AfterControlStatements: true
+  AfterForeachMacros: true
+  AfterFunctionDeclarationName: false
+  AfterFunctionDefinitionName: false
+  AfterIfMacros: true
+  AfterOverloadedOperator: false
+  AfterRequiresInClause: false
+  AfterRequiresInExpression: false
+  BeforeNonEmptyParentheses: false
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceBeforeSquareBrackets: false
+SpaceInEmptyBlock: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: Never
+SpacesInContainerLiterals: true
+SpacesInLineCommentPrefix:
+  Minimum: 1
+  Maximum: -1
+SpacesInParens: Never
+SpacesInParensOptions:
+  InConditionalStatements: false
+  InCStyleCasts: false
+  InEmptyParentheses: false
+  Other: false
+SpacesInSquareBrackets: false
+Standard: Latest
+StatementAttributeLikeMacros:
+  - Q_EMIT
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+TabWidth: 4
+UseTab: Never
+VerilogBreakBetweenInstancePorts: true
+WhitespaceSensitiveMacros:
+  - BOOST_PP_STRINGIZE
+  - CF_SWIFT_NAME
+  - NS_SWIFT_NAME
+  - PP_STRINGIZE
+  - STRINGIZE

.gitignore

@@ -0,0 +1,20 @@
+.cache
+.idea
+.vs
+out
+
+/build
+/builddir
+/build-*
+
+/subprojects/glfw-*
+/subprojects/imgui-*
+/subprojects/sdl2-*
+/subprojects/freetype-*
+/subprojects/libpng-*
+/subprojects/packagecache
+
+*.swp
+*.bak
+*.tmp
+.DS_Store

.vscode/launch.json

@@ -0,0 +1,66 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "CLI",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/builddir/clrsync_cli",
+            "args": [
+                "--apply",
+                "--theme",
+                "dark"
+            ],
+            "preLaunchTask": "Build (meson)",
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}/builddir",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                },
+                {
+                    "description": "Set Disassembly Flavor to Intel",
+                    "text": "-gdb-set disassembly-flavor intel",
+                    "ignoreFailures": true
+                }
+            ]
+        },
+        {
+            "name": "GUI",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/builddir/clrsync_gui",
+            "args": [
+                "--apply",
+                "--theme",
+                "dark"
+            ],
+            "preLaunchTask": "Build (meson)",
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}/builddir",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                },
+                {
+                    "description": "Set Disassembly Flavor to Intel",
+                    "text": "-gdb-set disassembly-flavor intel",
+                    "ignoreFailures": true
+                }
+            ]
+        }
+    ]
+}

.vscode/settings.json

@@ -0,0 +1,9 @@
+{
+    "C_Cpp.default.compileCommands": "/home/dan/src/clrsync/builddir/compile_commands.json",
+    "C_Cpp.default.configurationProvider": "mesonbuild.mesonbuild",
+    "clangd.arguments": [
+        "--compile-commands-dir=${workspaceFolder}/builddir",
+        "--completion-style=detailed",
+        "--header-insertion=never"
+    ],
+}

.vscode/tasks.json

@@ -0,0 +1,22 @@
+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "Build (meson)",
+            "command": "meson",
+            "args": [
+                "compile",
+                "-C",
+                "builddir"
+            ],
+            "options": {
+                "cwd": "${workspaceFolder}"
+            },
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+        }
+    ],
+    "version": "2.0.0"
+}

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.25)
+project(clrsync VERSION 0.1.0 LANGUAGES CXX)
+
+include(GNUInstallDirs)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+set(CMAKE_SKIP_BUILD_RPATH FALSE)
+set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+set(CMAKE_INSTALL_RPATH "$ORIGIN/../${CMAKE_INSTALL_LIBDIR}")
+
+find_package(OpenGL REQUIRED)
+
+if(WIN32)
+    include(FetchContent)
+    FetchContent_Declare(
+        freetype
+        URL https://download.savannah.gnu.org/releases/freetype/freetype-2.14.1.tar.gz
+    )
+    FetchContent_MakeAvailable(freetype)
+
+    FetchContent_Declare(
+        glfw
+        GIT_REPOSITORY https://github.com/glfw/glfw.git
+        GIT_TAG 3.3.10
+    )
+    FetchContent_MakeAvailable(glfw)
+
+else()
+    find_package(Freetype REQUIRED)
+    find_package(PkgConfig REQUIRED)
+    find_package(Fontconfig REQUIRED)
+    pkg_check_modules(GLFW REQUIRED glfw3)
+endif()
+
+set(CORE_SOURCES
+    src/core/palette/color.cpp
+    src/core/io/toml_file.cpp
+    src/core/config/config.cpp
+    src/core/utils.cpp
+    src/core/version.cpp
+    src/core/theme/theme_template.cpp
+)
+
+add_library(clrsync_core SHARED ${CORE_SOURCES})
+target_include_directories(clrsync_core PUBLIC src SYSTEM lib)
+target_compile_definitions(clrsync_core PRIVATE
+    CLRSYNC_DATADIR=\"${CMAKE_INSTALL_FULL_DATADIR}/clrsync\"
+)
+
+add_executable(clrsync_cli src/cli/main.cpp)
+target_include_directories(clrsync_cli PRIVATE src SYSTEM lib)
+target_link_libraries(clrsync_cli PRIVATE clrsync_core)
+
+set(GUI_SOURCES
+    src/gui/main.cpp
+    src/gui/color_scheme_editor.cpp
+    src/gui/template_editor.cpp
+    src/gui/palette_controller.cpp
+    src/gui/template_controller.cpp
+    lib/color_text_edit/TextEditor.cpp
+    src/gui/imgui_helpers.cpp
+    src/gui/imgui_helpers.hpp
+    src/gui/about_window.cpp
+    src/gui/settings_window.cpp
+    src/gui/font_loader.cpp
+)
+
+add_executable(clrsync_gui ${GUI_SOURCES})
+target_include_directories(clrsync_gui PRIVATE src SYSTEM lib)
+
+if(WIN32)
+    target_link_libraries(clrsync_gui PRIVATE clrsync_core glfw freetype imgui OpenGL::GL)
+else()
+    target_include_directories(clrsync_gui PRIVATE ${FREETYPE_INCLUDE_DIRS} ${GLFW_INCLUDE_DIRS})
+    target_link_libraries(clrsync_gui PRIVATE clrsync_core imgui ${FREETYPE_LIBRARIES} ${GLFW_LIBRARIES} X11 Xrandr Xi Fontconfig::Fontconfig OpenGL::GL)
+endif()
+
+set(imgui_SOURCE_DIR lib/imgui)
+add_library(imgui STATIC
+    ${imgui_SOURCE_DIR}/imgui.cpp
+    ${imgui_SOURCE_DIR}/imgui_draw.cpp
+    ${imgui_SOURCE_DIR}/imgui_widgets.cpp
+    ${imgui_SOURCE_DIR}/imgui_tables.cpp
+    ${imgui_SOURCE_DIR}/backends/imgui_impl_glfw.cpp
+    ${imgui_SOURCE_DIR}/backends/imgui_impl_opengl3.cpp
+    ${imgui_SOURCE_DIR}/misc/freetype/imgui_freetype.cpp
+)
+
+target_include_directories(imgui PUBLIC SYSTEM
+    ${imgui_SOURCE_DIR}
+    ${imgui_SOURCE_DIR}/backends
+)
+
+if(WIN32)
+    target_include_directories(imgui PUBLIC ${GLFW_INCLUDE_DIRS} ${freetype_SOURCE_DIR}/include)
+else()
+    target_include_directories(imgui PUBLIC ${GLFW_INCLUDE_DIRS} ${FREETYPE_INCLUDE_DIRS})
+endif()
+
+target_link_libraries(imgui PUBLIC glfw OpenGL::GL freetype)
+target_compile_definitions(imgui PUBLIC IMGUI_ENABLE_FREETYPE)
+
+install(TARGETS clrsync_core
+        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+)
+
+install(TARGETS clrsync_cli
+        RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)
+
+install(TARGETS clrsync_gui
+        RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)
+
+install(FILES
+        example_config/config.toml
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/clrsync
+)
+
+install(DIRECTORY example_config/templates
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/clrsync
+        FILES_MATCHING PATTERN "*"
+)
+
+install(DIRECTORY example_config/palettes
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/clrsync
+        FILES_MATCHING PATTERN "*.toml"
+)

PKGBUILD

@@ -0,0 +1,39 @@
+# Maintainer: Daniel Dada <dan@binarygoose.dev>
+pkgname=clrsync
+pkgver=0.1.0
+pkgrel=1
+pkgdesc="Color scheme manager"
+arch=('x86_64')
+url="https://github.com/obsqrbtz/clrsync"
+license=('MIT')
+depends=(
+    glfw-x11
+    freetype2
+    fontconfig
+    libx11
+    libxrandr
+    libxi
+    mesa
+    libglvnd
+    libxinerama
+    libxcursor
+)
+makedepends=('cmake' 'git')
+source=("$pkgname-$pkgver.tar.gz::https://github.com/obsqrbtz/clrsync/archive/refs/tags/v$pkgver.tar.gz")
+sha256sums=('SKIP')
+
+build() {
+    cd "$pkgname-$pkgver"
+
+    cmake -B build -S . \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_INSTALL_PREFIX=/usr
+
+    cmake --build build
+}
+
+package() {
+    cd "$pkgname-$pkgver"
+
+    DESTDIR="$pkgdir" cmake --install build
+}

README.md

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+# clrsync
+
+A theme management tool for synchronizing color schemes across multiple applications. clrsync allows you to define color palettes once and apply them consistently to all your terminal emulators, editors, and other configurable applications.
+
+## Features
+
+- **Unified Color Management**: Define color palettes in TOML format and apply them across multiple applications
+- **CLI & GUI**: Choose between a command-line interface or a graphical editor
+- **Live Reload**: Define post-apply hooks (configurable per template)
+- **Flexible Color Formats**: Support for HEX, RGB, HSL with multi-component access (e.g., `{color.r}`, `{color.hex}`, `{color.hsl}`)
+- **Pre-built Themes**: Includes popular themes
+
+## Building
+
+### Prerequisites
+
+- C++20 compatible compiler (GCC, Clang, or MSVC)
+- CMake or Meson
+- OpenGL
+
+### Using CMake
+
+```bash
+mkdir build && cd build
+cmake ..
+cmake --build .
+```
+
+### Using Meson
+
+```bash
+meson setup builddir
+meson compile -C builddir
+```
+
+## Installation
+
+After building, you'll have:
+- `clrsync_cli` - CLI
+- `clrsync_gui` - GUI
+- `libclrsync_core` - Shared lib
+
+## Configuration
+
+Create a configuration file at `~/.config/clrsync/config.toml`:
+
+```toml
+[general]
+palettes_path = "~/.config/clrsync/palettes"
+default_theme = "dark"
+
+[templates.kitty]
+input_path = "~/.config/clrsync/templates/kitty.conf"
+output_path = "~/.config/kitty/clrsync.conf"
+enabled = true
+reload_cmd = "pkill -SIGUSR1 kitty"
+```
+
+### Palette Files
+
+Create palette files in your `palettes_path` directory:
+
+```toml
+# ~/.config/clrsync/palettes/dark.toml
+[general]
+name = "dark"
+
+[colors]
+background = "#111318FF"
+surface = "#1E1F25FF"
+surface_variant = "#282A2FFF"
+
+foreground = "#E2E2E9FF"
+foreground_secondary = "#A8ABB3FF"
+
+accent = "#00AA56FF"
+outline = "#44474FFF"
+shadow = "#00000080"
+cursor = "#FFFFFFFF"
+
+error = "#FF5F5FFF"
+warning = "#FFC966FF"
+success = "#6AD68BFF"
+info = "#5DB2FFFF"
+
+term_black   = "#111318FF"
+term_red     = "#FF5F5FFF"
+term_green   = "#00AA56FF"
+term_yellow  = "#FFC966FF"
+term_blue    = "#5DB2FFFF"
+term_magenta = "#DEBCDFFF"
+term_cyan    = "#86C9FFFF"
+term_white   = "#E2E2E9FF"
+
+term_black_bright   = "#33353AFF"
+term_red_bright     = "#FFB780FF"
+term_green_bright   = "#00CC6AFF"
+term_yellow_bright  = "#FFD580FF"
+term_blue_bright    = "#86C9FFFF"
+term_magenta_bright = "#F0D6F0FF"
+term_cyan_bright    = "#BFEFFFFF"
+term_white_bright   = "#FFFFFFFF"
+```
+
+### Template Files
+
+Create template files using color variables with flexible format specifiers:
+
+```conf
+# ~/.config/clrsync/templates/kitty.conf
+cursor              {foreground}
+cursor_text_color   {background}
+
+foreground            {foreground}
+background            {background}
+selection_foreground  {foreground_secondary}
+selection_background  {surface}
+url_color             {accent}
+
+color0      {background}
+color1      {term_red}
+color2      {term_green}
+color3      {term_yellow}
+color4      {term_blue}
+color5      {term_magenta}
+color6      {term_cyan}
+color7      {term_white}
+```
+
+#### Color Format Specifiers
+
+Access color components using dot notation:
+
+```conf
+# HEX formats
+{color}                    # Default: #RRGGBB
+{color.hex}                # #RRGGBB
+{color.hex_stripped}       # RRGGBB
+{color.hexa}               # #RRGGBBAA
+{color.hexa_stripped}      # RRGGBBAA
+
+# RGB components (0-255)
+{color.rgb}                # rgb(r, g, b)
+{color.r}                  # Red component
+{color.g}                  # Green component
+{color.b}                  # Blue component
+
+# RGBA (alpha normalized 0-1)
+{color.rgba}               # rgba(r, g, b, a)
+{color.a}                  # Alpha component
+
+# HSL (hue 0-360, saturation/lightness 0-1)
+{color.hsl}                # hsl(h, s, l)
+{color.h}                  # Hue component
+{color.s}                  # Saturation component
+{color.l}                  # Lightness component
+
+# HSLA (hue 0-360, saturation/lightness/alpha 0-1)
+{color.hsla}               # hsla(h, s, l, a)
+{color.a}                  # Alpha component
+```
+
+## Usage
+
+### CLI
+
+List available themes:
+```bash
+clrsync_cli --list-themes
+```
+
+Apply the default theme:
+```bash
+clrsync_cli --apply
+```
+
+Apply a specific theme:
+```bash
+clrsync_cli --apply --theme rose-pine
+```
+
+Apply a theme from a file path:
+```bash
+clrsync_cli --apply --path /path/to/theme.toml
+```
+
+Show available color variables:
+```bash
+clrsync_cli --show-vars
+```
+
+Use a custom config file:
+```bash
+clrsync_cli --config /path/to/config.toml --apply
+```
+
+### GUI
+
+Launch the graphical editor:
+```bash
+clrsync_gui
+```
+
+The GUI provides:
+- **Color Scheme Editor**: Visual palette editor with color pickers
+- **Template Editor**: Edit template files
+- **Live Preview**: See changes in real-time
+
+## Example Themes
+
+The project includes several pre-configured themes in `example_config/palettes/`:
+- `dark.toml`
+- `light.toml`
+- `flexoki.toml`
+- `flexoki-light.toml`
+- `rose-pine.toml`
+- `rose-pine-moon.toml`
+- `rose-pine-dawn.toml`
+
+## Acknowledgments
+
+This project uses the following open-source libraries:
+
+- **[Dear ImGui](https://github.com/ocornut/imgui)** - Bloat-free graphical user interface library for C++
+- **[GLFW](https://www.glfw.org/)** - Multi-platform library for OpenGL, OpenGL ES and Vulkan development
+- **[toml++](https://github.com/marzer/tomlplusplus)** - Header-only TOML config file parser and serializer for C++17
+- **[argparse](https://github.com/p-ranav/argparse)** - Argument Parser for Modern C++
+- **[ImGuiColorTextEdit](https://github.com/BalazsJako/ImGuiColorTextEdit)** - Syntax highlighting text editor for ImGui
+
+Special thanks to the creators of the included color schemes:
+- **[Flexoki](https://stephango.com/flexoki)** by Steph Ango
+- **[Rosé Pine](https://rosepinetheme.com/)** by the Rosé Pine team
+

example_config/config.toml

@@ -0,0 +1,22 @@
+[general]
+default_theme = 'dark'
+palettes_path = '~/.config/clrsync/palettes'
+font = 'JetBrainsMono Nerd Font Mono'
+font_size = 14
+
+[templates.formats-demo]
+enabled = true
+input_path = '~/.config/clrsync/templates/formats-demo'
+output_path = '~/.config/clrsync/formats-demo'
+
+[templates.kitty]
+enabled = true
+input_path = '~/.config/clrsync/templates/kitty.conf'
+output_path = '~/.config/kitty/kitty_test.conf'
+reload_cmd = 'pkill -SIGUSR1 kitty'
+
+[templates.nvim]
+enabled = true
+input_path = '~/.config/clrsync/templates/nvim.lua'
+output_path = '~/.config/nvim/colors/clrsync.lua'
+reload_cmd = ''

example_config/palettes/catppuccin-frappe.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#A6D189FF'
+background = '#303446FF'
+border_emphasized = '#8CAAEEFF'
+border_focused = '#A6D189FF'
+border_window = '#51576DFF'
+cursor = '#F2D5CFFF'
+editor_background = '#303446FF'
+error = '#E78284FF'
+floating_window_background = '#414559FF'
+foreground = '#C6D0F5FF'
+foreground_emphasis = '#C6D0F5FF'
+foreground_secondary = '#B5BFE2FF'
+info = '#8CAAEEFF'
+menu_option_background = '#414559FF'
+outline = '#51576DFF'
+popup_background = '#292C3CFF'
+shadow = '#00000080'
+sidebar_background = '#292C3CFF'
+success = '#A6D189FF'
+surface = '#292C3CFF'
+surface_variant = '#414559FF'
+syntax_error = '#E78284FF'
+syntax_function = '#8CAAEEFF'
+syntax_keyword = '#CA9EE6FF'
+syntax_operator = '#99D1DBFF'
+syntax_special_keyword = '#E5C890FF'
+term_black = '#51576DFF'
+term_black_bright = '#626880FF'
+term_blue = '#8CAAEEFF'
+term_blue_bright = '#8CAAEEFF'
+term_cyan = '#81C8BEFF'
+term_cyan_bright = '#81C8BEFF'
+term_green = '#A6D189FF'
+term_green_bright = '#A6D189FF'
+term_magenta = '#F4B8E4FF'
+term_magenta_bright = '#F4B8E4FF'
+term_red = '#E78284FF'
+term_red_bright = '#E78284FF'
+term_white = '#B5BFE2FF'
+term_white_bright = '#A5ADCEFF'
+term_yellow = '#E5C890FF'
+term_yellow_bright = '#E5C890FF'
+terminal_gray = '#626880FF'
+text_command = '#A6D189FF'
+text_comment = '#737994FF'
+text_disabled = '#737994FF'
+text_emphasis = '#C6D0F5FF'
+text_error = '#E78284FF'
+text_inactive = '#838BA7FF'
+text_line_number = '#737994FF'
+text_link = '#8CAAEEFF'
+text_main = '#C6D0F5FF'
+text_selected = '#62688038'
+text_selection_inactive = '#51576D38'
+text_string = '#A6D189FF'
+text_success = '#A6D189FF'
+text_warning = '#E5C890FF'
+warning = '#EF9F76FF'
+warning_emphasis = '#E5C890FF'
+
+[general]
+name = 'catppuccin-frappe'

example_config/palettes/catppuccin-latte.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#40A02BFF'
+background = '#EFF1F5FF'
+border_emphasized = '#1E66F5FF'
+border_focused = '#40A02BFF'
+border_window = '#CCD0DAFF'
+cursor = '#DC8A78FF'
+editor_background = '#EFF1F5FF'
+error = '#D20F39FF'
+floating_window_background = '#E6E9EFFF'
+foreground = '#4C4F69FF'
+foreground_emphasis = '#4C4F69FF'
+foreground_secondary = '#6C6F85FF'
+info = '#1E66F5FF'
+menu_option_background = '#E6E9EFFF'
+outline = '#CCD0DAFF'
+popup_background = '#DCE0E8FF'
+shadow = '#00000040'
+sidebar_background = '#DCE0E8FF'
+success = '#40A02BFF'
+surface = '#DCE0E8FF'
+surface_variant = '#E6E9EFFF'
+syntax_error = '#D20F39FF'
+syntax_function = '#1E66F5FF'
+syntax_keyword = '#8839EFFF'
+syntax_operator = '#04A5E5FF'
+syntax_special_keyword = '#DF8E1DFF'
+term_black = '#5C5F77FF'
+term_black_bright = '#6C6F85FF'
+term_blue = '#1E66F5FF'
+term_blue_bright = '#1E66F5FF'
+term_cyan = '#179299FF'
+term_cyan_bright = '#179299FF'
+term_green = '#40A02BFF'
+term_green_bright = '#40A02BFF'
+term_magenta = '#EA76CBFF'
+term_magenta_bright = '#EA76CBFF'
+term_red = '#D20F39FF'
+term_red_bright = '#D20F39FF'
+term_white = '#4C4F69FF'
+term_white_bright = '#4C4F69FF'
+term_yellow = '#DF8E1DFF'
+term_yellow_bright = '#DF8E1DFF'
+terminal_gray = '#9CA0B0FF'
+text_command = '#40A02BFF'
+text_comment = '#ACB0BEFF'
+text_disabled = '#ACB0BEFF'
+text_emphasis = '#4C4F69FF'
+text_error = '#D20F39FF'
+text_inactive = '#8C8FA1FF'
+text_line_number = '#ACB0BEFF'
+text_link = '#1E66F5FF'
+text_main = '#4C4F69FF'
+text_selected = '#CCD0DA38'
+text_selection_inactive = '#DCE0E838'
+text_string = '#40A02BFF'
+text_success = '#40A02BFF'
+text_warning = '#DF8E1DFF'
+warning = '#FE640BFF'
+warning_emphasis = '#DF8E1DFF'
+
+[general]
+name = 'catppuccin-latte'

example_config/palettes/catppuccin-macciato.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#A6DA95FF'
+background = '#24273AFF'
+border_emphasized = '#8AADF4FF'
+border_focused = '#A6DA95FF'
+border_window = '#494D64FF'
+cursor = '#F4DBD6FF'
+editor_background = '#24273AFF'
+error = '#ED8796FF'
+floating_window_background = '#363A4FFF'
+foreground = '#CAD3F5FF'
+foreground_emphasis = '#CAD3F5FF'
+foreground_secondary = '#B8C0E0FF'
+info = '#8AADF4FF'
+menu_option_background = '#363A4FFF'
+outline = '#494D64FF'
+popup_background = '#1E2030FF'
+shadow = '#00000080'
+sidebar_background = '#1E2030FF'
+success = '#A6DA95FF'
+surface = '#1E2030FF'
+surface_variant = '#363A4FFF'
+syntax_error = '#ED8796FF'
+syntax_function = '#8AADF4FF'
+syntax_keyword = '#C6A0F6FF'
+syntax_operator = '#91D7E3FF'
+syntax_special_keyword = '#EED49FFF'
+term_black = '#494D64FF'
+term_black_bright = '#5B6078FF'
+term_blue = '#8AADF4FF'
+term_blue_bright = '#8AADF4FF'
+term_cyan = '#8BD5CAFF'
+term_cyan_bright = '#8BD5CAFF'
+term_green = '#A6DA95FF'
+term_green_bright = '#A6DA95FF'
+term_magenta = '#F5BDE6FF'
+term_magenta_bright = '#F5BDE6FF'
+term_red = '#ED8796FF'
+term_red_bright = '#ED8796FF'
+term_white = '#B8C0E0FF'
+term_white_bright = '#A5ADCBFF'
+term_yellow = '#EED49FFF'
+term_yellow_bright = '#EED49FFF'
+terminal_gray = '#5B6078FF'
+text_command = '#A6DA95FF'
+text_comment = '#6E738DFF'
+text_disabled = '#6E738DFF'
+text_emphasis = '#CAD3F5FF'
+text_error = '#ED8796FF'
+text_inactive = '#8087A2FF'
+text_line_number = '#6E738DFF'
+text_link = '#8AADF4FF'
+text_main = '#CAD3F5FF'
+text_selected = '#5B607838'
+text_selection_inactive = '#494D6438'
+text_string = '#A6DA95FF'
+text_success = '#A6DA95FF'
+text_warning = '#EED49FFF'
+warning = '#F5A97FFF'
+warning_emphasis = '#EED49FFF'
+
+[general]
+name = 'catppuccin-macchiato'

example_config/palettes/catppuccin-mocha.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#A6E3A1FF'
+background = '#1E1E2EFF'
+border_emphasized = '#89B4FAFF'
+border_focused = '#A6E3A1FF'
+border_window = '#45475AFF'
+cursor = '#F5E0DCFF'
+editor_background = '#1E1E2EFF'
+error = '#F38BA8FF'
+floating_window_background = '#313244FF'
+foreground = '#CDD6F4FF'
+foreground_emphasis = '#CDD6F4FF'
+foreground_secondary = '#BAC2DEFF'
+info = '#89B4FAFF'
+menu_option_background = '#313244FF'
+outline = '#45475AFF'
+popup_background = '#181825FF'
+shadow = '#00000080'
+sidebar_background = '#181825FF'
+success = '#A6E3A1FF'
+surface = '#181825FF'
+surface_variant = '#313244FF'
+syntax_error = '#F38BA8FF'
+syntax_function = '#89B4FAFF'
+syntax_keyword = '#CBA6F7FF'
+syntax_operator = '#89DCEBFF'
+syntax_special_keyword = '#F9E2AFFF'
+term_black = '#45475AFF'
+term_black_bright = '#585B70FF'
+term_blue = '#89B4FAFF'
+term_blue_bright = '#89B4FAFF'
+term_cyan = '#94E2D5FF'
+term_cyan_bright = '#94E2D5FF'
+term_green = '#A6E3A1FF'
+term_green_bright = '#A6E3A1FF'
+term_magenta = '#F5C2E7FF'
+term_magenta_bright = '#F5C2E7FF'
+term_red = '#F38BA8FF'
+term_red_bright = '#F38BA8FF'
+term_white = '#BAC2DEFF'
+term_white_bright = '#A6ADC8FF'
+term_yellow = '#F9E2AFFF'
+term_yellow_bright = '#F9E2AFFF'
+terminal_gray = '#585B70FF'
+text_command = '#A6E3A1FF'
+text_comment = '#6C7086FF'
+text_disabled = '#6C7086FF'
+text_emphasis = '#CDD6F4FF'
+text_error = '#F38BA8FF'
+text_inactive = '#7F849CFF'
+text_line_number = '#6C7086FF'
+text_link = '#89B4FAFF'
+text_main = '#CDD6F4FF'
+text_selected = '#585B7038'
+text_selection_inactive = '#45475A38'
+text_string = '#A6E3A1FF'
+text_success = '#A6E3A1FF'
+text_warning = '#F9E2AFFF'
+warning = '#FAB387FF'
+warning_emphasis = '#F9E2AFFF'
+
+[general]
+name = 'catppuccin-mocha'

example_config/palettes/dark.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#00AA56FF'
+background = '#111318FF'
+border_emphasized = '#5DB2FFFF'
+border_focused = '#00AA56FF'
+border_window = '#44474FFF'
+cursor = '#FFFFFFFF'
+editor_background = '#111318FF'
+error = '#FF5F5FFF'
+floating_window_background = '#282A2FFF'
+foreground = '#E2E2E9FF'
+foreground_emphasis = '#FFFFFFFF'
+foreground_secondary = '#A8ABB3FF'
+info = '#5DB2FFFF'
+menu_option_background = '#282A2FFF'
+outline = '#44474FFF'
+popup_background = '#1E1F25FF'
+shadow = '#00000080'
+sidebar_background = '#1E1F25FF'
+success = '#6AD68BFF'
+surface = '#1E1F25FF'
+surface_variant = '#282A2FFF'
+syntax_error = '#FF5F5FFF'
+syntax_function = '#86C9FFFF'
+syntax_keyword = '#DEBCDFFF'
+syntax_operator = '#A8ABB3FF'
+syntax_special_keyword = '#FFC966FF'
+term_black = '#111318FF'
+term_black_bright = '#33353AFF'
+term_blue = '#5DB2FFFF'
+term_blue_bright = '#86C9FFFF'
+term_cyan = '#86C9FFFF'
+term_cyan_bright = '#BFEFFFFF'
+term_green = '#00AA56FF'
+term_green_bright = '#00CC6AFF'
+term_magenta = '#DEBCDFFF'
+term_magenta_bright = '#F0D6F0FF'
+term_red = '#FF5F5FFF'
+term_red_bright = '#FFB780FF'
+term_white = '#E2E2E9FF'
+term_white_bright = '#FFFFFFFF'
+term_yellow = '#FFC966FF'
+term_yellow_bright = '#FFD580FF'
+terminal_gray = '#33353AFF'
+text_command = '#00AA56FF'
+text_comment = '#44474FFF'
+text_disabled = '#44474FFF'
+text_emphasis = '#FFFFFFFF'
+text_error = '#FF5F5FFF'
+text_inactive = '#A8ABB3FF'
+text_line_number = '#44474FFF'
+text_link = '#5DB2FFFF'
+text_main = '#E2E2E9FF'
+text_selected = '#FFFFFF1A'
+text_selection_inactive = '#A8ABB338'
+text_string = '#6AD68BFF'
+text_success = '#6AD68BFF'
+text_warning = '#FFC966FF'
+warning = '#FFC966FF'
+warning_emphasis = '#FFD580FF'
+
+[general]
+name = 'dark'

example_config/palettes/everforest-dark-hard.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#A7C080FF'
+background = '#272E33FF'
+border_emphasized = '#7FBBB3FF'
+border_focused = '#A7C080FF'
+border_window = '#475258FF'
+cursor = '#D3C6AAFF'
+editor_background = '#272E33FF'
+error = '#E67E80FF'
+floating_window_background = '#3D484DFF'
+foreground = '#D3C6AAFF'
+foreground_emphasis = '#D3C6AAFF'
+foreground_secondary = '#9DA9A0FF'
+info = '#7FBBB3FF'
+menu_option_background = '#3D484DFF'
+outline = '#475258FF'
+popup_background = '#2E383CFF'
+shadow = '#00000080'
+sidebar_background = '#2E383CFF'
+success = '#A7C080FF'
+surface = '#2E383CFF'
+surface_variant = '#3D484DFF'
+syntax_error = '#E67E80FF'
+syntax_function = '#7FBBB3FF'
+syntax_keyword = '#D699B6FF'
+syntax_operator = '#83C092FF'
+syntax_special_keyword = '#DBBC7FFF'
+term_black = '#475258FF'
+term_black_bright = '#4F585EFF'
+term_blue = '#7FBBB3FF'
+term_blue_bright = '#7FBBB3FF'
+term_cyan = '#83C092FF'
+term_cyan_bright = '#83C092FF'
+term_green = '#A7C080FF'
+term_green_bright = '#A7C080FF'
+term_magenta = '#D699B6FF'
+term_magenta_bright = '#D699B6FF'
+term_red = '#E67E80FF'
+term_red_bright = '#E67E80FF'
+term_white = '#D3C6AAFF'
+term_white_bright = '#D3C6AAFF'
+term_yellow = '#DBBC7FFF'
+term_yellow_bright = '#DBBC7FFF'
+terminal_gray = '#4F585EFF'
+text_command = '#A7C080FF'
+text_comment = '#859289FF'
+text_disabled = '#859289FF'
+text_emphasis = '#D3C6AAFF'
+text_error = '#E67E80FF'
+text_inactive = '#7A8478FF'
+text_line_number = '#859289FF'
+text_link = '#7FBBB3FF'
+text_main = '#D3C6AAFF'
+text_selected = '#543A4838'
+text_selection_inactive = '#51404538'
+text_string = '#A7C080FF'
+text_success = '#A7C080FF'
+text_warning = '#DBBC7FFF'
+warning = '#E69875FF'
+warning_emphasis = '#DBBC7FFF'
+
+[general]
+name = 'everforest-dark-hard'

example_config/palettes/everforest-dark.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#A7C080FF'
+background = '#2D353BFF'
+border_emphasized = '#7FBBB3FF'
+border_focused = '#A7C080FF'
+border_window = '#475258FF'
+cursor = '#D3C6AAFF'
+editor_background = '#2D353BFF'
+error = '#E67E80FF'
+floating_window_background = '#3D484DFF'
+foreground = '#D3C6AAFF'
+foreground_emphasis = '#D3C6AAFF'
+foreground_secondary = '#9DA9A0FF'
+info = '#7FBBB3FF'
+menu_option_background = '#3D484DFF'
+outline = '#475258FF'
+popup_background = '#343F44FF'
+shadow = '#00000080'
+sidebar_background = '#343F44FF'
+success = '#A7C080FF'
+surface = '#343F44FF'
+surface_variant = '#3D484DFF'
+syntax_error = '#E67E80FF'
+syntax_function = '#7FBBB3FF'
+syntax_keyword = '#D699B6FF'
+syntax_operator = '#83C092FF'
+syntax_special_keyword = '#DBBC7FFF'
+term_black = '#475258FF'
+term_black_bright = '#4F585EFF'
+term_blue = '#7FBBB3FF'
+term_blue_bright = '#7FBBB3FF'
+term_cyan = '#83C092FF'
+term_cyan_bright = '#83C092FF'
+term_green = '#A7C080FF'
+term_green_bright = '#A7C080FF'
+term_magenta = '#D699B6FF'
+term_magenta_bright = '#D699B6FF'
+term_red = '#E67E80FF'
+term_red_bright = '#E67E80FF'
+term_white = '#D3C6AAFF'
+term_white_bright = '#D3C6AAFF'
+term_yellow = '#DBBC7FFF'
+term_yellow_bright = '#DBBC7FFF'
+terminal_gray = '#4F585EFF'
+text_command = '#A7C080FF'
+text_comment = '#859289FF'
+text_disabled = '#859289FF'
+text_emphasis = '#D3C6AAFF'
+text_error = '#E67E80FF'
+text_inactive = '#7A8478FF'
+text_line_number = '#859289FF'
+text_link = '#7FBBB3FF'
+text_main = '#D3C6AAFF'
+text_selected = '#543A4838'
+text_selection_inactive = '#51404538'
+text_string = '#A7C080FF'
+text_success = '#A7C080FF'
+text_warning = '#DBBC7FFF'
+warning = '#E69875FF'
+warning_emphasis = '#DBBC7FFF'
+
+[general]
+name = 'everforest-dark'

example_config/palettes/everforest-light.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#8DA101FF'
+background = '#FFF9E8FF'
+border_emphasized = '#3A94C5FF'
+border_focused = '#8DA101FF'
+border_window = '#E6E2CCFF'
+cursor = '#5C6A72FF'
+editor_background = '#FFF9E8FF'
+error = '#F85552FF'
+floating_window_background = '#F4F0D9FF'
+foreground = '#5C6A72FF'
+foreground_emphasis = '#5C6A72FF'
+foreground_secondary = '#939F91FF'
+info = '#3A94C5FF'
+menu_option_background = '#F4F0D9FF'
+outline = '#E6E2CCFF'
+popup_background = '#FDFCEEFF'
+shadow = '#00000040'
+sidebar_background = '#FDFCEEFF'
+success = '#8DA101FF'
+surface = '#FDFCEEFF'
+surface_variant = '#F4F0D9FF'
+syntax_error = '#F85552FF'
+syntax_function = '#3A94C5FF'
+syntax_keyword = '#DF69BAFF'
+syntax_operator = '#35A77CFF'
+syntax_special_keyword = '#DFA000FF'
+term_black = '#E6E2CCFF'
+term_black_bright = '#D8CAACFF'
+term_blue = '#3A94C5FF'
+term_blue_bright = '#3A94C5FF'
+term_cyan = '#35A77CFF'
+term_cyan_bright = '#35A77CFF'
+term_green = '#8DA101FF'
+term_green_bright = '#8DA101FF'
+term_magenta = '#DF69BAFF'
+term_magenta_bright = '#DF69BAFF'
+term_red = '#F85552FF'
+term_red_bright = '#F85552FF'
+term_white = '#5C6A72FF'
+term_white_bright = '#5C6A72FF'
+term_yellow = '#DFA000FF'
+term_yellow_bright = '#DFA000FF'
+terminal_gray = '#D8CAACFF'
+text_command = '#8DA101FF'
+text_comment = '#A6B0A0FF'
+text_disabled = '#A6B0A0FF'
+text_emphasis = '#5C6A72FF'
+text_error = '#F85552FF'
+text_inactive = '#939F91FF'
+text_line_number = '#A6B0A0FF'
+text_link = '#3A94C5FF'
+text_main = '#5C6A72FF'
+text_selected = '#EAE4D938'
+text_selection_inactive = '#F0EBDB38'
+text_string = '#8DA101FF'
+text_success = '#8DA101FF'
+text_warning = '#DFA000FF'
+warning = '#F57D26FF'
+warning_emphasis = '#DFA000FF'
+
+[general]
+name = 'everforest-light'

example_config/palettes/flexoki-light.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#66800BFF'
+background = '#FFFCF0FF'
+border_emphasized = '#205EA6FF'
+border_focused = '#66800BFF'
+border_window = '#DAD8CEFF'
+cursor = '#100F0FFF'
+editor_background = '#FFFCF0FF'
+error = '#AF3029FF'
+floating_window_background = '#F2F0E5FF'
+foreground = '#100F0FFF'
+foreground_emphasis = '#100F0FFF'
+foreground_secondary = '#403E3CFF'
+info = '#205EA6FF'
+menu_option_background = '#F2F0E5FF'
+outline = '#DAD8CEFF'
+popup_background = '#F2F0E5FF'
+shadow = '#00000040'
+sidebar_background = '#F2F0E5FF'
+success = '#66800BFF'
+surface = '#F2F0E5FF'
+surface_variant = '#E6E4D9FF'
+syntax_error = '#AF3029FF'
+syntax_function = '#205EA6FF'
+syntax_keyword = '#5E409DFF'
+syntax_operator = '#24837BFF'
+syntax_special_keyword = '#AD8301FF'
+term_black = '#FFFCF0FF'
+term_black_bright = '#6F6E69FF'
+term_blue = '#205EA6FF'
+term_blue_bright = '#205EA6FF'
+term_cyan = '#24837BFF'
+term_cyan_bright = '#24837BFF'
+term_green = '#66800BFF'
+term_green_bright = '#66800BFF'
+term_magenta = '#A02F6FFF'
+term_magenta_bright = '#A02F6FFF'
+term_red = '#AF3029FF'
+term_red_bright = '#AF3029FF'
+term_white = '#100F0FFF'
+term_white_bright = '#100F0FFF'
+term_yellow = '#AD8301FF'
+term_yellow_bright = '#AD8301FF'
+terminal_gray = '#6F6E69FF'
+text_command = '#66800BFF'
+text_comment = '#878580FF'
+text_disabled = '#B7B5ACFF'
+text_emphasis = '#100F0FFF'
+text_error = '#AF3029FF'
+text_inactive = '#6F6E69FF'
+text_line_number = '#878580FF'
+text_link = '#205EA6FF'
+text_main = '#100F0FFF'
+text_selected = '#E6E4D938'
+text_selection_inactive = '#F2F0E538'
+text_string = '#66800BFF'
+text_success = '#66800BFF'
+text_warning = '#AD8301FF'
+warning = '#BC5215FF'
+warning_emphasis = '#AD8301FF'
+
+[general]
+name = 'flexoki-light'

example_config/palettes/flexoki.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#879A39FF'
+background = '#100F0FFF'
+border_emphasized = '#4385BEFF'
+border_focused = '#879A39FF'
+border_window = '#282726FF'
+cursor = '#CECDC3FF'
+editor_background = '#100F0FFF'
+error = '#D14D41FF'
+floating_window_background = '#1C1B1AFF'
+foreground = '#CECDC3FF'
+foreground_emphasis = '#E6E4D9FF'
+foreground_secondary = '#B7B5ACFF'
+info = '#4385BEFF'
+menu_option_background = '#1C1B1AFF'
+outline = '#282726FF'
+popup_background = '#1C1B1AFF'
+shadow = '#00000080'
+sidebar_background = '#1C1B1AFF'
+success = '#879A39FF'
+surface = '#1C1B1AFF'
+surface_variant = '#282726FF'
+syntax_error = '#D14D41FF'
+syntax_function = '#4385BEFF'
+syntax_keyword = '#8B7EC8FF'
+syntax_operator = '#3AA99FFF'
+syntax_special_keyword = '#D0A215FF'
+term_black = '#100F0FFF'
+term_black_bright = '#6F6E69FF'
+term_blue = '#4385BEFF'
+term_blue_bright = '#4385BEFF'
+term_cyan = '#3AA99FFF'
+term_cyan_bright = '#3AA99FFF'
+term_green = '#879A39FF'
+term_green_bright = '#879A39FF'
+term_magenta = '#CE5D97FF'
+term_magenta_bright = '#CE5D97FF'
+term_red = '#D14D41FF'
+term_red_bright = '#D14D41FF'
+term_white = '#CECDC3FF'
+term_white_bright = '#E6E4D9FF'
+term_yellow = '#D0A215FF'
+term_yellow_bright = '#D0A215FF'
+terminal_gray = '#6F6E69FF'
+text_command = '#879A39FF'
+text_comment = '#575653FF'
+text_disabled = '#403E3CFF'
+text_emphasis = '#E6E4D9FF'
+text_error = '#D14D41FF'
+text_inactive = '#6F6E69FF'
+text_line_number = '#575653FF'
+text_link = '#4385BEFF'
+text_main = '#CECDC3FF'
+text_selected = '#28272638'
+text_selection_inactive = '#1C1B1A38'
+text_string = '#879A39FF'
+text_success = '#879A39FF'
+text_warning = '#D0A215FF'
+warning = '#DA702CFF'
+warning_emphasis = '#D0A215FF'
+
+[general]
+name = 'flexoki'

example_config/palettes/gruvbox-dark.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#B8BB26FF'
+background = '#282828FF'
+border_emphasized = '#83A598FF'
+border_focused = '#B8BB26FF'
+border_window = '#504945FF'
+cursor = '#EBDBB2FF'
+editor_background = '#282828FF'
+error = '#FB4934FF'
+floating_window_background = '#3C3836FF'
+foreground = '#EBDBB2FF'
+foreground_emphasis = '#FBF1C7FF'
+foreground_secondary = '#D5C4A1FF'
+info = '#83A598FF'
+menu_option_background = '#3C3836FF'
+outline = '#504945FF'
+popup_background = '#32302FFF'
+shadow = '#00000080'
+sidebar_background = '#32302FFF'
+success = '#B8BB26FF'
+surface = '#32302FFF'
+surface_variant = '#3C3836FF'
+syntax_error = '#FB4934FF'
+syntax_function = '#83A598FF'
+syntax_keyword = '#D3869BFF'
+syntax_operator = '#8EC07CFF'
+syntax_special_keyword = '#FABD2FFF'
+term_black = '#282828FF'
+term_black_bright = '#928374FF'
+term_blue = '#458588FF'
+term_blue_bright = '#83A598FF'
+term_cyan = '#689D6AFF'
+term_cyan_bright = '#8EC07CFF'
+term_green = '#98971AFF'
+term_green_bright = '#B8BB26FF'
+term_magenta = '#B16286FF'
+term_magenta_bright = '#D3869BFF'
+term_red = '#CC241DFF'
+term_red_bright = '#FB4934FF'
+term_white = '#A89984FF'
+term_white_bright = '#EBDBB2FF'
+term_yellow = '#D79921FF'
+term_yellow_bright = '#FABD2FFF'
+terminal_gray = '#928374FF'
+text_command = '#B8BB26FF'
+text_comment = '#928374FF'
+text_disabled = '#665C54FF'
+text_emphasis = '#FBF1C7FF'
+text_error = '#FB4934FF'
+text_inactive = '#7C6F64FF'
+text_line_number = '#7C6F64FF'
+text_link = '#83A598FF'
+text_main = '#EBDBB2FF'
+text_selected = '#665C5438'
+text_selection_inactive = '#50494538'
+text_string = '#B8BB26FF'
+text_success = '#B8BB26FF'
+text_warning = '#FABD2FFF'
+warning = '#FE8019FF'
+warning_emphasis = '#FABD2FFF'
+
+[general]
+name = 'gruvbox-dark'

example_config/palettes/gruvbox-hard.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#B8BB26FF'
+background = '#1D2021FF'
+border_emphasized = '#83A598FF'
+border_focused = '#B8BB26FF'
+border_window = '#504945FF'
+cursor = '#EBDBB2FF'
+editor_background = '#1D2021FF'
+error = '#FB4934FF'
+floating_window_background = '#3C3836FF'
+foreground = '#EBDBB2FF'
+foreground_emphasis = '#FBF1C7FF'
+foreground_secondary = '#D5C4A1FF'
+info = '#83A598FF'
+menu_option_background = '#3C3836FF'
+outline = '#504945FF'
+popup_background = '#282828FF'
+shadow = '#00000080'
+sidebar_background = '#282828FF'
+success = '#B8BB26FF'
+surface = '#282828FF'
+surface_variant = '#3C3836FF'
+syntax_error = '#FB4934FF'
+syntax_function = '#83A598FF'
+syntax_keyword = '#D3869BFF'
+syntax_operator = '#8EC07CFF'
+syntax_special_keyword = '#FABD2FFF'
+term_black = '#1D2021FF'
+term_black_bright = '#928374FF'
+term_blue = '#458588FF'
+term_blue_bright = '#83A598FF'
+term_cyan = '#689D6AFF'
+term_cyan_bright = '#8EC07CFF'
+term_green = '#98971AFF'
+term_green_bright = '#B8BB26FF'
+term_magenta = '#B16286FF'
+term_magenta_bright = '#D3869BFF'
+term_red = '#CC241DFF'
+term_red_bright = '#FB4934FF'
+term_white = '#A89984FF'
+term_white_bright = '#EBDBB2FF'
+term_yellow = '#D79921FF'
+term_yellow_bright = '#FABD2FFF'
+terminal_gray = '#928374FF'
+text_command = '#B8BB26FF'
+text_comment = '#928374FF'
+text_disabled = '#665C54FF'
+text_emphasis = '#FBF1C7FF'
+text_error = '#FB4934FF'
+text_inactive = '#7C6F64FF'
+text_line_number = '#7C6F64FF'
+text_link = '#83A598FF'
+text_main = '#EBDBB2FF'
+text_selected = '#665C5438'
+text_selection_inactive = '#50494538'
+text_string = '#B8BB26FF'
+text_success = '#B8BB26FF'
+text_warning = '#FABD2FFF'
+warning = '#FE8019FF'
+warning_emphasis = '#FABD2FFF'
+
+[general]
+name = 'gruvbox-dark-hard'

example_config/palettes/gruvbox-light.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#79740EFF'
+background = '#F9F5D7FF'
+border_emphasized = '#076678FF'
+border_focused = '#79740EFF'
+border_window = '#D5C4A1FF'
+cursor = '#282828FF'
+editor_background = '#F9F5D7FF'
+error = '#9D0006FF'
+floating_window_background = '#F2E5BCFF'
+foreground = '#3C3836FF'
+foreground_emphasis = '#282828FF'
+foreground_secondary = '#504945FF'
+info = '#076678FF'
+menu_option_background = '#F2E5BCFF'
+outline = '#D5C4A1FF'
+popup_background = '#FBF1C7FF'
+shadow = '#00000040'
+sidebar_background = '#FBF1C7FF'
+success = '#79740EFF'
+surface = '#FBF1C7FF'
+surface_variant = '#F2E5BCFF'
+syntax_error = '#9D0006FF'
+syntax_function = '#076678FF'
+syntax_keyword = '#8F3F71FF'
+syntax_operator = '#427B58FF'
+syntax_special_keyword = '#B57614FF'
+term_black = '#F9F5D7FF'
+term_black_bright = '#928374FF'
+term_blue = '#076678FF'
+term_blue_bright = '#458588FF'
+term_cyan = '#427B58FF'
+term_cyan_bright = '#689D6AFF'
+term_green = '#79740EFF'
+term_green_bright = '#98971AFF'
+term_magenta = '#8F3F71FF'
+term_magenta_bright = '#B16286FF'
+term_red = '#9D0006FF'
+term_red_bright = '#CC241DFF'
+term_white = '#7C6F64FF'
+term_white_bright = '#3C3836FF'
+term_yellow = '#B57614FF'
+term_yellow_bright = '#D79921FF'
+terminal_gray = '#928374FF'
+text_command = '#79740EFF'
+text_comment = '#928374FF'
+text_disabled = '#D5C4A1FF'
+text_emphasis = '#282828FF'
+text_error = '#9D0006FF'
+text_inactive = '#A89984FF'
+text_line_number = '#A89984FF'
+text_link = '#076678FF'
+text_main = '#3C3836FF'
+text_selected = '#D5C4A138'
+text_selection_inactive = '#EBDBB238'
+text_string = '#79740EFF'
+text_success = '#79740EFF'
+text_warning = '#B57614FF'
+warning = '#AF3A03FF'
+warning_emphasis = '#B57614FF'
+
+[general]
+name = 'gruvbox-light-hard'

example_config/palettes/light.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#007A35FF'
+background = '#FFFFFFFF'
+border_emphasized = '#3399FFFF'
+border_focused = '#007A35FF'
+border_window = '#CCCCCCFF'
+cursor = '#111318FF'
+editor_background = '#FFFFFFFF'
+error = '#D00000FF'
+floating_window_background = '#E8E8E8FF'
+foreground = '#1E1F25FF'
+foreground_emphasis = '#111318FF'
+foreground_secondary = '#44474FFF'
+info = '#3399FFFF'
+menu_option_background = '#E8E8E8FF'
+outline = '#CCCCCCFF'
+popup_background = '#F5F5F5FF'
+shadow = '#000000FF'
+sidebar_background = '#F5F5F5FF'
+success = '#008833FF'
+surface = '#F5F5F5FF'
+surface_variant = '#E8E8E8FF'
+syntax_error = '#D00000FF'
+syntax_function = '#0066CCFF'
+syntax_keyword = '#9933CCFF'
+syntax_operator = '#44474FFF'
+syntax_special_keyword = '#FF9900FF'
+term_black = '#111318FF'
+term_black_bright = '#888888FF'
+term_blue = '#3399FFFF'
+term_blue_bright = '#66B2FFFF'
+term_cyan = '#0066CCFF'
+term_cyan_bright = '#99DDFFFF'
+term_green = '#007A35FF'
+term_green_bright = '#33CC66FF'
+term_magenta = '#9933CCFF'
+term_magenta_bright = '#CC99CCFF'
+term_red = '#D00000FF'
+term_red_bright = '#FF6666FF'
+term_white = '#FFFFFFFF'
+term_white_bright = '#FFFFFFFF'
+term_yellow = '#FF9900FF'
+term_yellow_bright = '#FFCC80FF'
+terminal_gray = '#CCCCCCFF'
+text_command = '#007A35FF'
+text_comment = '#888888FF'
+text_disabled = '#CCCCCCFF'
+text_emphasis = '#111318FF'
+text_error = '#D00000FF'
+text_inactive = '#44474FFF'
+text_line_number = '#888888FF'
+text_link = '#3399FFFF'
+text_main = '#1E1F25FF'
+text_selected = '#D6D6D6FF'
+text_selection_inactive = '#888888FF'
+text_string = '#008833FF'
+text_success = '#008833FF'
+text_warning = '#FF9900FF'
+warning = '#FF9900FF'
+warning_emphasis = '#FFCC80FF'
+
+[general]
+name = 'light'

example_config/palettes/rose-pine-dawn.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#286983FF'
+background = '#FAF4EDFF'
+border_emphasized = '#907AA9FF'
+border_focused = '#286983FF'
+border_window = '#CECACDFF'
+cursor = '#575279FF'
+editor_background = '#FAF4EDFF'
+error = '#B4637AFF'
+floating_window_background = '#F2E9E1FF'
+foreground = '#575279FF'
+foreground_emphasis = '#111318FF'
+foreground_secondary = '#797593FF'
+info = '#907AA9FF'
+menu_option_background = '#F2E9E1FF'
+outline = '#9893A5FF'
+popup_background = '#FFFAF3FF'
+shadow = '#00000020'
+sidebar_background = '#FFFAF3FF'
+success = '#286983FF'
+surface = '#FFFAF3FF'
+surface_variant = '#F2E9E1FF'
+syntax_error = '#B4637AFF'
+syntax_function = '#907AA9FF'
+syntax_keyword = '#D7827EFF'
+syntax_operator = '#797593FF'
+syntax_special_keyword = '#EA9D34FF'
+term_black = '#FAF4EDFF'
+term_black_bright = '#DFDAD9FF'
+term_blue = '#907AA9FF'
+term_blue_bright = '#66B2FFFF'
+term_cyan = '#56949FFF'
+term_cyan_bright = '#99DDFFFF'
+term_green = '#286983FF'
+term_green_bright = '#33CC66FF'
+term_magenta = '#D7827EFF'
+term_magenta_bright = '#CC99CCFF'
+term_red = '#B4637AFF'
+term_red_bright = '#FF6666FF'
+term_white = '#575279FF'
+term_white_bright = '#111318FF'
+term_yellow = '#EA9D34FF'
+term_yellow_bright = '#FFCC80FF'
+terminal_gray = '#CCCCCCFF'
+text_command = '#286983FF'
+text_comment = '#9893A5FF'
+text_disabled = '#9893A5FF'
+text_emphasis = '#111318FF'
+text_error = '#B4637AFF'
+text_inactive = '#797593FF'
+text_line_number = '#9893A5FF'
+text_link = '#907AA9FF'
+text_main = '#575279FF'
+text_selected = '#DFDAD979'
+text_selection_inactive = '#79759338'
+text_string = '#286983FF'
+text_success = '#286983FF'
+text_warning = '#EA9D34FF'
+warning = '#EA9D34FF'
+warning_emphasis = '#FFD580FF'
+
+[general]
+name = 'rose-pine-dawn'

example_config/palettes/rose-pine-moon.toml

@@ -0,0 +1,63 @@
+[general]
+name = "rose-pine-moon"
+
+[colors]
+accent = "#3e8fb0FF"
+background = "#232136FF"
+border_emphasized = "#c4a7e7FF"
+border_focused = "#3e8fb0FF"
+border_window = "#56526eFF"
+cursor = "#e0def4FF"
+editor_background = "#232136FF"
+error = "#eb6f92FF"
+floating_window_background = "#393552FF"
+foreground = "#e0def4FF"
+foreground_emphasis = "#ffffffFF"
+foreground_secondary = "#908caaFF"
+info = "#c4a7e7FF"
+menu_option_background = "#393552FF"
+outline = "#6e6a86FF"
+popup_background = "#2a273fff"
+shadow = "#00000080"
+sidebar_background = "#2a273fff"
+success = "#3e8fb0FF"
+surface = "#2a273fff"
+surface_variant = "#393552FF"
+syntax_error = "#eb6f92FF"
+syntax_function = "#c4a7e7FF"
+syntax_keyword = "#ea9a97FF"
+syntax_operator = "#908caaFF"
+syntax_special_keyword = "#f6c177FF"
+term_black = "#232136FF"
+term_black_bright = "#44415aFF"
+term_blue = "#c4a7e7FF"
+term_blue_bright = "#66b2ffff"
+term_cyan = "#9ccfd8FF"
+term_cyan_bright = "#bfefffff"
+term_green = "#3e8fb0FF"
+term_green_bright = "#00cc6aff"
+term_magenta = "#ea9a97FF"
+term_magenta_bright = "#f0d6f0FF"
+term_red = "#eb6f92FF"
+term_red_bright = "#ffb780FF"
+term_white = "#e0def4FF"
+term_white_bright = "#ffffffFF"
+term_yellow = "#f6c177FF"
+term_yellow_bright = "#ffd580FF"
+terminal_gray = "#33353AFF"
+text_command = "#3e8fb0FF"
+text_comment = "#6e6a86FF"
+text_disabled = "#6e6a86FF"
+text_emphasis = "#ffffffFF"
+text_error = "#eb6f92FF"
+text_inactive = "#908caaFF"
+text_line_number = "#6e6a86FF"
+text_link = "#c4a7e7FF"
+text_main = "#e0def4FF"
+text_selected = "#56526e1A"
+text_selection_inactive = "#908caa38"
+text_string = "#3e8fb0FF"
+text_success = "#3e8fb0FF"
+text_warning = "#f6c177FF"
+warning = "#f6c177FF"
+warning_emphasis = "#ffd580FF"

example_config/palettes/rose-pine.toml

@@ -0,0 +1,63 @@
+[colors]
+accent = '#31748FFF'
+background = '#191724FF'
+border_emphasized = '#C4A7E7FF'
+border_focused = '#31748FFF'
+border_window = '#524F67FF'
+cursor = '#E0DEF4FF'
+editor_background = '#191724FF'
+error = '#EB6F92FF'
+floating_window_background = '#26233AFF'
+foreground = '#E0DEF4FF'
+foreground_emphasis = '#FFFFFFFF'
+foreground_secondary = '#908CAAFF'
+info = '#C4A7E7FF'
+menu_option_background = '#26233AFF'
+outline = '#6E6A86FF'
+popup_background = '#1F1D2EFF'
+shadow = '#00000080'
+sidebar_background = '#1F1D2EFF'
+success = '#31748FFF'
+surface = '#1F1D2EFF'
+surface_variant = '#26233AFF'
+syntax_error = '#EB6F92FF'
+syntax_function = '#C4A7E7FF'
+syntax_keyword = '#EBBCBAFF'
+syntax_operator = '#908CAAFF'
+syntax_special_keyword = '#F6C177FF'
+term_black = '#191724FF'
+term_black_bright = '#403D52FF'
+term_blue = '#C4A7E7FF'
+term_blue_bright = '#C4A7E7FF'
+term_cyan = '#9CCFD8FF'
+term_cyan_bright = '#9CCFD8FF'
+term_green = '#31748FFF'
+term_green_bright = '#31748FFF'
+term_magenta = '#EBBCBAFF'
+term_magenta_bright = '#F0D6F0FF'
+term_red = '#EB6F92FF'
+term_red_bright = '#EB6F92FF'
+term_white = '#E0DEF4FF'
+term_white_bright = '#FFFFFFFF'
+term_yellow = '#F6C177FF'
+term_yellow_bright = '#F6C177FF'
+terminal_gray = '#33353AFF'
+text_command = '#31748FFF'
+text_comment = '#6E6A86FF'
+text_disabled = '#6E6A86FF'
+text_emphasis = '#FFFFFFFF'
+text_error = '#EB6F92FF'
+text_inactive = '#908CAAFF'
+text_line_number = '#6E6A86FF'
+text_link = '#C4A7E7FF'
+text_main = '#E0DEF4FF'
+text_selected = '#524F671A'
+text_selection_inactive = '#908CAA38'
+text_string = '#31748FFF'
+text_success = '#31748FFF'
+text_warning = '#F6C177FF'
+warning = '#F6C177FF'
+warning_emphasis = '#F6C177FF'
+
+[general]
+name = 'rose-pine'

example_config/templates/formats-demo

@@ -0,0 +1,36 @@
+# BASE COLORS (raw)
+color1.raw                  {term_red}
+
+# HEX
+color1.hex                  {term_red.hex}
+color1.hex.stripped         {term_red.hex_stripped}
+
+color1.hexa                 {term_red.hexa}
+color1.hexa.stripped        {term_red.hexa_stripped}
+
+# RGB (0–255)
+color1.rgb                  {term_red.rgb}
+color1.r                    {term_red.r}
+color1.g                    {term_red.g}
+color1.b                    {term_red.b}
+
+# RGBA (A = 0–1 normalized)
+color1.rgba                 {term_red.rgba}
+color1.a                    {term_red.a}
+
+# HSL (normalized 0–1 for s,l, integers for h)
+color1.hsl                  {term_red.hsl}
+color1.h                    {term_red.h}
+color1.s                    {term_red.s}
+color1.l                    {term_red.l}
+
+# HSLA
+color1.hsla                 {term_red.hsla}
+color1.hsla_a               {term_red.hsla_a}
+
+# Combined custom formats
+color1.r-g-b                {term_red.r}-{term_red.g}-{term_red.b}
+color1.r-g-b-a              {term_red.r}-{term_red.g}-{term_red.b}-{term_red.a}
+
+color1.h-s-l                {term_red.h}-{term_red.s}-{term_red.l}
+color1.h-s-l-a              {term_red.h}-{term_red.s}-{term_red.l}-{term_red.hsla_a}

example_config/templates/kitty.conf

@@ -0,0 +1,32 @@
+cursor              {foreground}
+cursor_text_color   {background}
+
+foreground            {foreground}
+background            {background}
+selection_foreground  {foreground_secondary}
+selection_background  {surface}
+url_color             {accent}
+
+color8      {surface_variant}
+color0      {background}
+
+color1      {term_red}
+color9      {term_red_bright}
+
+color2      {term_green}
+color10     {term_green_bright}
+
+color3      {term_yellow}
+color11     {term_yellow_bright}
+
+color4      {term_blue}
+color12     {term_blue_bright}
+
+color5      {term_magenta}
+color13     {term_magenta_bright}
+
+color6      {term_cyan}
+color14     {term_cyan_bright}
+
+color15     {term_white_bright}
+color7      {term_white}

example_config/templates/nvim.lua

@@ -0,0 +1,87 @@
+vim.cmd("highlight clear")
+vim.cmd("syntax reset")
+vim.g.colors_name = "clrsync"
+
+local palette = {
+    -- TextEditor
+    Default                 = "{text_main.hex}",
+    Keyword                 = "{syntax_keyword.hex}",
+    Number                  = "{text_warning.hex}",
+    String                  = "{text_string.hex}",
+    CharLiteral             = "{text_string.hex}",
+    Punctuation             = "{text_main.hex}",
+    Preprocessor            = "{syntax_special_keyword.hex}",
+    Identifier              = "{text_main.hex}",
+    KnownIdentifier         = "{text_link.hex}",
+    PreprocIdentifier       = "{text_link.hex}",
+
+    Comment                 = "{text_comment.hex}",
+    MultiLineComment        = "{text_comment.hex}",
+
+    Background              = "{editor_background.hex}",
+    Cursor                  = "{cursor.hex}",
+
+    Selection               = "{text_selected.hex}",
+    ErrorMarker             = "{syntax_error.hex}",
+    Breakpoint              = "{syntax_error.hex}",
+
+    LineNumber              = "{text_line_number.hex}",
+    CurrentLineFill         = "{surface_variant.hex}",
+    CurrentLineFillInactive = "{surface.hex}",
+
+    CurrentLineEdge         = "{border_emphasized.hex}",
+}
+
+-- Helper function to set highlights in Neovim
+local function set_hl(group, opts)
+    vim.api.nvim_set_hl(0, group, opts)
+end
+
+vim.o.winborder = "rounded"
+
+-- Basic editor highlights using the mapped palette
+set_hl("Normal", { fg = palette.Default, bg = palette.Background })
+set_hl("CursorLine", { bg = palette.CurrentLineFill })
+set_hl("Visual", { bg = palette.Selection })
+set_hl("LineNr", { fg = palette.LineNumber })
+set_hl("CursorLineNr", { fg = palette.Keyword })
+
+-- Syntax highlights
+set_hl("Comment", { fg = palette.Comment, italic = true })
+set_hl("Constant", { fg = palette.Number })
+set_hl("String", { fg = palette.String })
+set_hl("Character", { fg = palette.CharLiteral })
+set_hl("Identifier", { fg = palette.Identifier })
+set_hl("Function", { fg = palette.Keyword })
+set_hl("Statement", { fg = palette.Keyword })
+set_hl("PreProc", { fg = palette.Preprocessor })
+set_hl("Type", { fg = palette.Keyword })
+set_hl("Special", { fg = palette.PreprocIdentifier })
+set_hl("Underlined", { fg = palette.KnownIdentifier })
+set_hl("Error", { fg = palette.ErrorMarker, bg = palette.Background })
+set_hl("Todo", { fg = palette.Text, bg = palette.Keyword })
+
+-- Floating windows
+set_hl("NormalFloat", { bg = palette.Background })
+set_hl("FloatBorder", { fg = palette.CurrentLineEdge, bg = palette.Background })
+
+-- Completion menu
+set_hl("Pmenu", { bg = palette.Background })
+set_hl("PmenuSel", { bg = palette.Keyword, fg = palette.Background })
+
+-- Git and diagnostic highlights
+set_hl("DiffAdd", { fg = palette.Success or palette.Default, bg = palette.Background })
+set_hl("DiffChange", { fg = palette.Keyword, bg = palette.Background })
+set_hl("DiffDelete", { fg = palette.ErrorMarker, bg = palette.Background })
+set_hl("DiagnosticError", { fg = palette.ErrorMarker })
+set_hl("DiagnosticWarn", { fg = palette.Number })
+set_hl("DiagnosticInfo", { fg = palette.Keyword })
+set_hl("DiagnosticHint", { fg = palette.PreprocIdentifier })
+
+-- Treesitter links
+set_hl("@comment", { link = "Comment" })
+set_hl("@string", { fg = palette.String })
+set_hl("@function", { fg = palette.Keyword })
+set_hl("@variable", { fg = palette.Identifier })
+set_hl("@keyword", { fg = palette.Keyword })
+set_hl("@type", { fg = palette.Preprocessor })

lib/color_text_edit/TextEditor.h

@@ -0,0 +1,457 @@
+#pragma once
+
+#include "imgui.h"
+#include <array>
+#include <map>
+#include <memory>
+#include <regex>
+#include <string>
+#include <unordered_map>
+#include <unordered_set>
+#include <vector>
+
+class TextEditor
+{
+  public:
+    enum class PaletteIndex
+    {
+        Default,
+        Keyword,
+        Number,
+        String,
+        CharLiteral,
+        Punctuation,
+        Preprocessor,
+        Identifier,
+        KnownIdentifier,
+        PreprocIdentifier,
+        Comment,
+        MultiLineComment,
+        Background,
+        Cursor,
+        Selection,
+        ErrorMarker,
+        Breakpoint,
+        LineNumber,
+        CurrentLineFill,
+        CurrentLineFillInactive,
+        CurrentLineEdge,
+        Max
+    };
+
+    enum class SelectionMode
+    {
+        Normal,
+        Word,
+        Line
+    };
+
+    struct Breakpoint
+    {
+        int mLine;
+        bool mEnabled;
+        std::string mCondition;
+
+        Breakpoint() : mLine(-1), mEnabled(false)
+        {
+        }
+    };
+
+    // Represents a character coordinate from the user's point of view,
+    // i. e. consider an uniform grid (assuming fixed-width font) on the
+    // screen as it is rendered, and each cell has its own coordinate, starting from 0.
+    // Tabs are counted as [1..mTabSize] count empty spaces, depending on
+    // how many space is necessary to reach the next tab stop.
+    // For example, coordinate (1, 5) represents the character 'B' in a line "\tABC", when mTabSize
+    // = 4, because it is rendered as "    ABC" on the screen.
+    struct Coordinates
+    {
+        int mLine, mColumn;
+        Coordinates() : mLine(0), mColumn(0)
+        {
+        }
+        Coordinates(int aLine, int aColumn) : mLine(aLine), mColumn(aColumn)
+        {
+            assert(aLine >= 0);
+            assert(aColumn >= 0);
+        }
+        static Coordinates Invalid()
+        {
+            static Coordinates invalid(-1, -1);
+            return invalid;
+        }
+
+        bool operator==(const Coordinates &o) const
+        {
+            return mLine == o.mLine && mColumn == o.mColumn;
+        }
+
+        bool operator!=(const Coordinates &o) const
+        {
+            return mLine != o.mLine || mColumn != o.mColumn;
+        }
+
+        bool operator<(const Coordinates &o) const
+        {
+            if (mLine != o.mLine)
+                return mLine < o.mLine;
+            return mColumn < o.mColumn;
+        }
+
+        bool operator>(const Coordinates &o) const
+        {
+            if (mLine != o.mLine)
+                return mLine > o.mLine;
+            return mColumn > o.mColumn;
+        }
+
+        bool operator<=(const Coordinates &o) const
+        {
+            if (mLine != o.mLine)
+                return mLine < o.mLine;
+            return mColumn <= o.mColumn;
+        }
+
+        bool operator>=(const Coordinates &o) const
+        {
+            if (mLine != o.mLine)
+                return mLine > o.mLine;
+            return mColumn >= o.mColumn;
+        }
+    };
+
+    struct Identifier
+    {
+        Coordinates mLocation;
+        std::string mDeclaration;
+    };
+
+    typedef std::string String;
+    typedef std::unordered_map<std::string, Identifier> Identifiers;
+    typedef std::unordered_set<std::string> Keywords;
+    typedef std::map<int, std::string> ErrorMarkers;
+    typedef std::unordered_set<int> Breakpoints;
+    typedef std::array<ImU32, (unsigned)PaletteIndex::Max> Palette;
+    typedef uint8_t Char;
+
+    struct Glyph
+    {
+        Char mChar;
+        PaletteIndex mColorIndex = PaletteIndex::Default;
+        bool mComment : 1;
+        bool mMultiLineComment : 1;
+        bool mPreprocessor : 1;
+
+        Glyph(Char aChar, PaletteIndex aColorIndex)
+            : mChar(aChar), mColorIndex(aColorIndex), mComment(false), mMultiLineComment(false),
+              mPreprocessor(false)
+        {
+        }
+    };
+
+    typedef std::vector<Glyph> Line;
+    typedef std::vector<Line> Lines;
+
+    struct LanguageDefinition
+    {
+        typedef std::pair<std::string, PaletteIndex> TokenRegexString;
+        typedef std::vector<TokenRegexString> TokenRegexStrings;
+        typedef bool (*TokenizeCallback)(const char *in_begin, const char *in_end,
+                                         const char *&out_begin, const char *&out_end,
+                                         PaletteIndex &paletteIndex);
+
+        std::string mName;
+        Keywords mKeywords;
+        Identifiers mIdentifiers;
+        Identifiers mPreprocIdentifiers;
+        std::string mCommentStart, mCommentEnd, mSingleLineComment;
+        char mPreprocChar;
+        bool mAutoIndentation;
+
+        TokenizeCallback mTokenize;
+
+        TokenRegexStrings mTokenRegexStrings;
+
+        bool mCaseSensitive;
+
+        LanguageDefinition()
+            : mPreprocChar('#'), mAutoIndentation(true), mTokenize(nullptr), mCaseSensitive(true)
+        {
+        }
+
+        static const LanguageDefinition &CPlusPlus();
+        static const LanguageDefinition &HLSL();
+        static const LanguageDefinition &GLSL();
+        static const LanguageDefinition &C();
+        static const LanguageDefinition &SQL();
+        static const LanguageDefinition &AngelScript();
+        static const LanguageDefinition &Lua();
+    };
+
+    TextEditor();
+    ~TextEditor();
+
+    void SetLanguageDefinition(const LanguageDefinition &aLanguageDef);
+    const LanguageDefinition &GetLanguageDefinition() const
+    {
+        return mLanguageDefinition;
+    }
+
+    const Palette &GetPalette() const
+    {
+        return mPaletteBase;
+    }
+    void SetPalette(const Palette &aValue);
+
+    void SetErrorMarkers(const ErrorMarkers &aMarkers)
+    {
+        mErrorMarkers = aMarkers;
+    }
+    void SetBreakpoints(const Breakpoints &aMarkers)
+    {
+        mBreakpoints = aMarkers;
+    }
+
+    void Render(const char *aTitle, const ImVec2 &aSize = ImVec2(), bool aBorder = false);
+    void SetText(const std::string &aText);
+    std::string GetText() const;
+
+    void SetTextLines(const std::vector<std::string> &aLines);
+    std::vector<std::string> GetTextLines() const;
+
+    std::string GetSelectedText() const;
+    std::string GetCurrentLineText() const;
+
+    int GetTotalLines() const
+    {
+        return (int)mLines.size();
+    }
+    bool IsOverwrite() const
+    {
+        return mOverwrite;
+    }
+
+    void SetReadOnly(bool aValue);
+    bool IsReadOnly() const
+    {
+        return mReadOnly;
+    }
+    bool IsTextChanged() const
+    {
+        return mTextChanged;
+    }
+    bool IsCursorPositionChanged() const
+    {
+        return mCursorPositionChanged;
+    }
+
+    bool IsColorizerEnabled() const
+    {
+        return mColorizerEnabled;
+    }
+    void SetColorizerEnable(bool aValue);
+
+    Coordinates GetCursorPosition() const
+    {
+        return GetActualCursorCoordinates();
+    }
+    void SetCursorPosition(const Coordinates &aPosition);
+
+    inline void SetHandleMouseInputs(bool aValue)
+    {
+        mHandleMouseInputs = aValue;
+    }
+    inline bool IsHandleMouseInputsEnabled() const
+    {
+        return mHandleKeyboardInputs;
+    }
+
+    inline void SetHandleKeyboardInputs(bool aValue)
+    {
+        mHandleKeyboardInputs = aValue;
+    }
+    inline bool IsHandleKeyboardInputsEnabled() const
+    {
+        return mHandleKeyboardInputs;
+    }
+
+    inline void SetImGuiChildIgnored(bool aValue)
+    {
+        mIgnoreImGuiChild = aValue;
+    }
+    inline bool IsImGuiChildIgnored() const
+    {
+        return mIgnoreImGuiChild;
+    }
+
+    inline void SetShowWhitespaces(bool aValue)
+    {
+        mShowWhitespaces = aValue;
+    }
+    inline bool IsShowingWhitespaces() const
+    {
+        return mShowWhitespaces;
+    }
+
+    void SetTabSize(int aValue);
+    inline int GetTabSize() const
+    {
+        return mTabSize;
+    }
+
+    void InsertText(const std::string &aValue);
+    void InsertText(const char *aValue);
+
+    void MoveUp(int aAmount = 1, bool aSelect = false);
+    void MoveDown(int aAmount = 1, bool aSelect = false);
+    void MoveLeft(int aAmount = 1, bool aSelect = false, bool aWordMode = false);
+    void MoveRight(int aAmount = 1, bool aSelect = false, bool aWordMode = false);
+    void MoveTop(bool aSelect = false);
+    void MoveBottom(bool aSelect = false);
+    void MoveHome(bool aSelect = false);
+    void MoveEnd(bool aSelect = false);
+
+    void SetSelectionStart(const Coordinates &aPosition);
+    void SetSelectionEnd(const Coordinates &aPosition);
+    void SetSelection(const Coordinates &aStart, const Coordinates &aEnd,
+                      SelectionMode aMode = SelectionMode::Normal);
+    void SelectWordUnderCursor();
+    void SelectAll();
+    bool HasSelection() const;
+
+    void Copy();
+    void Cut();
+    void Paste();
+    void Delete();
+
+    bool CanUndo() const;
+    bool CanRedo() const;
+    void Undo(int aSteps = 1);
+    void Redo(int aSteps = 1);
+
+    static const Palette &GetDarkPalette();
+    static const Palette &GetLightPalette();
+    static const Palette &GetRetroBluePalette();
+
+  private:
+    typedef std::vector<std::pair<std::regex, PaletteIndex>> RegexList;
+
+    struct EditorState
+    {
+        Coordinates mSelectionStart;
+        Coordinates mSelectionEnd;
+        Coordinates mCursorPosition;
+    };
+
+    class UndoRecord
+    {
+      public:
+        UndoRecord()
+        {
+        }
+        ~UndoRecord()
+        {
+        }
+
+        UndoRecord(const std::string &aAdded, const TextEditor::Coordinates aAddedStart,
+                   const TextEditor::Coordinates aAddedEnd,
+
+                   const std::string &aRemoved, const TextEditor::Coordinates aRemovedStart,
+                   const TextEditor::Coordinates aRemovedEnd,
+
+                   TextEditor::EditorState &aBefore, TextEditor::EditorState &aAfter);
+
+        void Undo(TextEditor *aEditor);
+        void Redo(TextEditor *aEditor);
+
+        std::string mAdded;
+        Coordinates mAddedStart;
+        Coordinates mAddedEnd;
+
+        std::string mRemoved;
+        Coordinates mRemovedStart;
+        Coordinates mRemovedEnd;
+
+        EditorState mBefore;
+        EditorState mAfter;
+    };
+
+    typedef std::vector<UndoRecord> UndoBuffer;
+
+    void ProcessInputs();
+    void Colorize(int aFromLine = 0, int aCount = -1);
+    void ColorizeRange(int aFromLine = 0, int aToLine = 0);
+    void ColorizeInternal();
+    float TextDistanceToLineStart(const Coordinates &aFrom) const;
+    void EnsureCursorVisible();
+    int GetPageSize() const;
+    std::string GetText(const Coordinates &aStart, const Coordinates &aEnd) const;
+    Coordinates GetActualCursorCoordinates() const;
+    Coordinates SanitizeCoordinates(const Coordinates &aValue) const;
+    void Advance(Coordinates &aCoordinates) const;
+    void DeleteRange(const Coordinates &aStart, const Coordinates &aEnd);
+    int InsertTextAt(Coordinates &aWhere, const char *aValue);
+    void AddUndo(UndoRecord &aValue);
+    Coordinates ScreenPosToCoordinates(const ImVec2 &aPosition) const;
+    Coordinates FindWordStart(const Coordinates &aFrom) const;
+    Coordinates FindWordEnd(const Coordinates &aFrom) const;
+    Coordinates FindNextWord(const Coordinates &aFrom) const;
+    int GetCharacterIndex(const Coordinates &aCoordinates) const;
+    int GetCharacterColumn(int aLine, int aIndex) const;
+    int GetLineCharacterCount(int aLine) const;
+    int GetLineMaxColumn(int aLine) const;
+    bool IsOnWordBoundary(const Coordinates &aAt) const;
+    void RemoveLine(int aStart, int aEnd);
+    void RemoveLine(int aIndex);
+    Line &InsertLine(int aIndex);
+    void EnterCharacter(ImWchar aChar, bool aShift);
+    void Backspace();
+    void DeleteSelection();
+    std::string GetWordUnderCursor() const;
+    std::string GetWordAt(const Coordinates &aCoords) const;
+    ImU32 GetGlyphColor(const Glyph &aGlyph) const;
+
+    void HandleKeyboardInputs();
+    void HandleMouseInputs();
+    void Render();
+
+    float mLineSpacing;
+    Lines mLines;
+    EditorState mState;
+    UndoBuffer mUndoBuffer;
+    int mUndoIndex;
+
+    int mTabSize;
+    bool mOverwrite;
+    bool mReadOnly;
+    bool mWithinRender;
+    bool mScrollToCursor;
+    bool mScrollToTop;
+    bool mTextChanged;
+    bool mColorizerEnabled;
+    float mTextStart; // position (in pixels) where a code line starts relative to the left of the
+                      // TextEditor.
+    int mLeftMargin;
+    bool mCursorPositionChanged;
+    int mColorRangeMin, mColorRangeMax;
+    SelectionMode mSelectionMode;
+    bool mHandleKeyboardInputs;
+    bool mHandleMouseInputs;
+    bool mIgnoreImGuiChild;
+    bool mShowWhitespaces;
+
+    Palette mPaletteBase;
+    Palette mPalette;
+    LanguageDefinition mLanguageDefinition;
+    RegexList mRegexList;
+
+    bool mCheckComments;
+    Breakpoints mBreakpoints;
+    ErrorMarkers mErrorMarkers;
+    ImVec2 mCharAdvance;
+    Coordinates mInteractiveStart, mInteractiveEnd;
+    std::string mLineBuffer;
+    uint64_t mStartTime;
+
+    float mLastClick;
+};

lib/imgui/.editorconfig

@@ -0,0 +1,28 @@
+# See http://editorconfig.org to read about the EditorConfig format.
+# - In theory automatically supported by VS2017+ and most common IDE or text editors.
+# - In practice VS2019-VS2022 stills don't trim trailing whitespaces correctly :(
+#   - Suggest installing this to trim whitespaces:
+#      GitHub https://github.com/madskristensen/TrailingWhitespace
+#      VS2019 https://marketplace.visualstudio.com/items?itemName=MadsKristensen.TrailingWhitespaceVisualizer
+#      VS2022 https://marketplace.visualstudio.com/items?itemName=MadsKristensen.TrailingWhitespace64
+#     (in spite of its name doesn't only visualize but also trims)
+#   - Alternative for older VS2010 to VS2015: https://marketplace.visualstudio.com/items?itemName=EditorConfigTeam.EditorConfig
+
+# top-most EditorConfig file
+root = true
+
+# Default settings:
+# Use 4 spaces as indentation
+[*]
+indent_style = space
+indent_size = 4
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[imstb_*]
+indent_size = 3
+trim_trailing_whitespace = false
+
+[Makefile]
+indent_style = tab
+indent_size = 4

lib/imgui/.gitattributes

@@ -0,0 +1,30 @@
+* text=auto
+
+*.c text
+*.cpp text
+*.h text
+*.m text
+*.mm text
+*.md text
+*.txt text
+*.html text
+*.bat text
+*.frag text
+*.vert text
+*.mkb text
+*.icf text
+
+*.sln text eol=crlf
+*.vcxproj text eol=crlf
+*.vcxproj.filters text eol=crlf
+*.natvis text eol=crlf
+
+Makefile text eol=lf
+*.sh text eol=lf
+*.pbxproj text eol=lf
+*.storyboard text eol=lf
+*.plist text eol=lf
+
+*.png binary
+*.ttf binary
+*.lib binary

lib/imgui/.github/FUNDING.yml

@@ -0,0 +1 @@
+custom: ['https://github.com/ocornut/imgui/wiki/Funding']

lib/imgui/.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1 @@
+blank_issues_enabled: false

lib/imgui/.github/ISSUE_TEMPLATE/issue_template.yml

@@ -0,0 +1,92 @@
+name: "Ask a question, report a bug, request a feature, etc."
+description: "Ask any question, discuss best practices, report a bug, request a feature."
+body:
+  - type: markdown
+    attributes:
+      value: |
+        FOR FIRST-TIME USERS ISSUES COMPILING/LINKING/RUNNING, please use [GitHub Discussions](https://github.com/ocornut/imgui/discussions)
+        For anything else: **we are happy to use 'GitHub Issues' for many types of open-ended questions**. We are encouraging 'Issues' becoming a large, centralized, tagged, cross-referenced database of Dear ImGui contents.
+
+        Be mindful that messages are being sent to the e-mail box of "Watching" users. Try to proof-read your messages before sending them. Edits are not seen by those users.
+
+        **If you are using Dear ImGui as part of a job that you are being well-paid for** and your company is not a sponsor. Please be mindful that this is a Free Software and you might be about to ask volunteers to help you doing your job. Please put extra effort describing your issue or question properly. If your company is wealthy, please read [Funding](https://github.com/ocornut/imgui/wiki/Funding) and consider getting in touch.
+  - type: markdown
+    attributes:
+      value: |
+        **Prerequisites:**
+        - I have read [Frequently Asked Questions](https://github.com/ocornut/imgui/blob/master/docs/FAQ.md).
+        - I have read [Contributing Guidelines -> General Advices](https://github.com/ocornut/imgui/blob/master/docs/CONTRIBUTING.md#getting-started--general-advice).
+        - I have read [Contributing Guidelines -> How to open an Issue](https://github.com/ocornut/imgui/blob/master/docs/CONTRIBUTING.md#how-to-open-an-issue).
+        - I have searched [Github Issues and PR](https://github.com/ocornut/imgui/issues?q=) for discussion of similar topics.
+
+        ----
+  - type: input
+    id: specs_version
+    attributes:
+      label: "Version/Branch of Dear ImGui:"
+      description: "(please specify if you have made substantial modifications to your copy)"
+      value: "Version 1.XX, Branch: XXX (master/docking/etc.)"
+      placeholder: "Version 1.XX, Branch: XXX (master/docking/etc.)"
+    validations:
+      required: true
+  - type: input
+    id: specs_backend
+    attributes:
+      label: "Back-ends:"
+      description: (or specify when using custom engine/back-ends)
+      value: "imgui_impl_XXX.cpp + imgui_impl_XXX.cpp"
+      placeholder: "imgui_impl_XXX.cpp  + imgui_impl_XXX.cpp or n/a"
+    validations:
+      required: true
+  - type: input
+    id: specs_compiler_os
+    attributes:
+      label: "Compiler, OS:"
+      placeholder: "e.g. Windows 11 + MSVC 2022, macOS + Clang 12, Linux + GCC etc."
+    validations:
+      required: true
+  - type: textarea
+    id: specs_full
+    attributes:
+      label: "Full config/build information:"
+      placeholder: |
+        (If you can run, you may go to 'Demo->Tools->About Dear ImGui->Config/Build Info' to obtain detailed information that you can paste here)
+    validations:
+      required: false
+  - type: textarea
+    id: issue_description
+    attributes:
+      label: "Details:"
+      description: "Try to be explicit with your goals, your expectations and what you have tried. Be mindful of [The XY Problem](https://xyproblem.info). What you have in mind or in your code is not obvious to other people. People frequently discuss problems and suggest incorrect solutions without first clarifying their goals. When requesting a new feature, please describe the usage context (how you intend to use it, why you need it, etc.). If you tried something and it failed, show us what you tried. If you are reporting a bug, explain what's the bug, how does it occur, etc. If you are reporting a crash, please include a debugger callstack."
+      value: |
+        **My Issue/Question:**
+
+        XXX _(please provide as much context as possible)_
+    validations:
+      required: true
+  - type: textarea
+    id: screenshots
+    attributes:
+      label: "Screenshots/Video:"
+      description: "Attach screenshots or gif/videos to clarify the context. They often convey useful information that is omitted by the description."
+      placeholder: "(You can drag files here)"
+    validations:
+      required: false
+  - type: textarea
+    id: repro_code
+    attributes:
+      label: "Minimal, Complete and Verifiable Example code:"
+      description: "Provide an [MCVE](https://stackoverflow.com/help/mcve) to demonstrate your problem. An ideal submission includes a small piece of code that anyone can paste into one of the examples applications (examples/*/main.cpp) or the demo (imgui_demo.cpp) to understand and reproduce it. Narrowing your problem to its shortest and purest form is the easiest way to understand it, explain it and fix it. Please test your shortened code to ensure it exhibits the problem. Often while creating the MCVE you will solve the problem! Many questions that are missing a standalone verifiable example are missing the actual cause of their issue in the description, which ends up wasting everyone's time."
+      value: |
+        ```cpp
+        // Here's some code anyone can copy and paste to reproduce your issue
+        ImGui::Begin("Example Bug");
+        MoreCodeToExplainMyIssue();
+        ImGui::End();
+        ```
+    validations:
+      required: false
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for taking the time to read prerequisites, filling this template and double-checking your message and your code!

lib/imgui/.github/pull_request_template.md

@@ -0,0 +1,10 @@
+(Click "Preview" to turn any http URL into a clickable link)
+
+1. PLEASE CAREFULLY READ: [Contributing Guidelines](https://github.com/ocornut/imgui/blob/master/docs/CONTRIBUTING.md)
+
+2. **Make sure you're using a special branch just for this pull request**. (In git, 1 PR = 1 branch. If you update the branch the PR will be updated.)
+
+3. Consider running the [imgui_test_suite](https://github.com/ocornut/imgui_test_engine) or adding new tests to test for expected behaviors.
+
+4. Clear this template before submitting your PR.
+

lib/imgui/.github/workflows/build.yml

@@ -0,0 +1,774 @@
+name: build
+
+on:
+  push:
+  pull_request:
+  workflow_run:
+    # Use a workflow as a trigger of scheduled builds. Forked repositories can disable scheduled builds by disabling
+    # "scheduled" workflow, while maintaining ability to perform local CI builds.
+    workflows:
+      - scheduled
+      - manual
+    branches:
+      - master
+      - docking
+    types:
+      - requested
+
+jobs:
+  Build-Windows:
+    runs-on: windows-2025
+    name: Build - Windows
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
+    env:
+      VS_PATH: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\
+      MSBUILD_PATH: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\
+    steps:
+      - uses: actions/checkout@v5
+        with:
+          path: ${{ github.workspace }}/imgui
+
+      # The VulkanSDK libs for Windows is manually generated using build_windows_vulkan_libs.ps1 + attached to issue #8925.
+      # (we have a .yml workflow in commit history if it becomes ever useful to create this on CI too)
+      - name: Install Dependencies
+        shell: powershell
+        run: |
+          Invoke-WebRequest -Uri "https://www.libsdl.org/release/SDL2-devel-2.32.8-VC.zip" -OutFile "SDL2-devel-2.32.8-VC.zip"
+          Expand-Archive -Path SDL2-devel-2.32.8-VC.zip
+          echo "SDL2_DIR=$(pwd)\SDL2-devel-2.32.8-VC\SDL2-2.32.8\" >>${env:GITHUB_ENV}
+
+          Invoke-WebRequest -Uri "https://www.libsdl.org/release/SDL3-devel-3.2.18-VC.zip" -OutFile "SDL3-devel-3.2.18-VC.zip"
+          Expand-Archive -Path SDL3-devel-3.2.18-VC.zip
+          echo "SDL3_DIR=$(pwd)\SDL3-devel-3.2.18-VC\SDL3-3.2.18\" >>${env:GITHUB_ENV}
+
+          Invoke-WebRequest -Uri "https://github.com/user-attachments/files/22464296/vulkan_windows_libs_1.4.326.zip" -OutFile vulkan_windows_libs_1.4.326.zip
+          Expand-Archive -Path vulkan_windows_libs_1.4.326.zip
+          echo "VULKAN_SDK=$(pwd)\vulkan_windows_libs_1.4.326\" >>${env:GITHUB_ENV}
+
+      - name: Fix Projects
+        shell: powershell
+        run: |
+          # CI workers do not supporter older Visual Studio versions. Fix projects to target newer available version.
+          gci -recurse -filter "*.vcxproj" | ForEach-Object {
+            (Get-Content $_.FullName) -Replace "<PlatformToolset>v\d{3}</PlatformToolset>","<PlatformToolset>v143</PlatformToolset>" | Set-Content -Path $_.FullName
+            (Get-Content $_.FullName) -Replace "<WindowsTargetPlatformVersion>[\d\.]+</WindowsTargetPlatformVersion>",'<WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>' | Set-Content -Path $_.FullName
+          }
+
+      # Not using matrix here because it would inflate job count too much. Check out and setup is done for every job and that makes build times way too long.
+      - name: Build example_null (extra warnings, mingw 64-bit)
+        run: mingw32-make -C examples/example_null WITH_EXTRA_WARNINGS=1
+
+      - name: Build example_null (mingw 64-bit, as DLL)
+        shell: bash
+        run: |
+          echo '#define IMGUI_API __declspec(dllexport)'         >  example_single_file.cpp
+          echo '#define IMGUI_IMPLEMENTATION'                    >> example_single_file.cpp
+          echo '#include "misc/single_file/imgui_single_file.h"' >> example_single_file.cpp
+          g++ -I. -Wall -Wformat -shared -o libimgui.dll -Wl,--out-implib,libimgui.a example_single_file.cpp -limm32
+          g++ -I. -Wall -Wformat -DIMGUI_API='__declspec(dllimport)' -DIMGUI_IMPL_API= -o example_null.exe examples/example_null/main.cpp -L. -limgui
+          rm -f example_null.exe libimgui.* example_single_file.*
+
+      - name: Build example_null (extra warnings, msvc 64-bit)
+        shell: cmd
+        run: |
+          cd examples\example_null
+          call "%VS_PATH%\VC\Auxiliary\Build\vcvars64.bat"
+          .\build_win32.bat /W4
+
+      - name: Build example_null (single file build)
+        shell: bash
+        run: |
+          cat > example_single_file.cpp <<'EOF'
+
+          #define IMGUI_IMPLEMENTATION
+          #include "misc/single_file/imgui_single_file.h"
+          #include "examples/example_null/main.cpp"
+
+          EOF
+          g++ -I. -Wall -Wformat -o example_single_file.exe example_single_file.cpp -limm32
+
+      - name: Build example_null (with IMGUI_DISABLE_WIN32_FUNCTIONS)
+        shell: bash
+        run: |
+          cat > example_single_file.cpp <<'EOF'
+
+          #define IMGUI_DISABLE_WIN32_FUNCTIONS
+          #define IMGUI_IMPLEMENTATION
+          #include "misc/single_file/imgui_single_file.h"
+          #include "examples/example_null/main.cpp"
+
+          EOF
+          g++ -I. -Wall -Wformat -o example_single_file.exe example_single_file.cpp -limm32
+
+      - name: Build example_null (as DLL)
+        shell: cmd
+        run: |
+          call "%VS_PATH%\VC\Auxiliary\Build\vcvars64.bat"
+
+          echo #define IMGUI_API __declspec(dllexport)         >  example_single_file.cpp
+          echo #define IMGUI_IMPLEMENTATION                    >> example_single_file.cpp
+          echo #include "misc/single_file/imgui_single_file.h" >> example_single_file.cpp
+
+          cl.exe /D_USRDLL /D_WINDLL /I. example_single_file.cpp /LD /FeImGui.dll /link
+          cl.exe /DIMGUI_API=__declspec(dllimport) -DIMGUI_IMPL_API= /I. ImGui.lib /Feexample_null.exe examples/example_null/main.cpp
+
+      # Win64 examples are more frequently compilted than the Win32 examples.
+      # More of the Win32 examples requires 'workflow_run' to reduce waste.
+      - name: Build Win32 example_glfw_opengl2
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_opengl2/example_glfw_opengl2.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_glfw_opengl3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_opengl3/example_glfw_opengl3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_glfw_vulkan
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_sdl2_sdlrenderer2
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_sdl2_vulkan
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_sdl2_opengl2
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_sdl2_opengl3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl3/example_sdl2_opengl3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+
+      - name: Build Win32 example_sdl2_directx11
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_directx11/example_sdl2_directx11.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_sdl3_opengl3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_opengl3/example_sdl3_opengl3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+
+      - name: Build Win32 example_sdl3_sdlgpu3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_sdlgpu3/example_sdl3_sdlgpu3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_sdl3_sdlrenderer3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_sdlrenderer3/example_sdl3_sdlrenderer3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_sdl3_vulkan
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_vulkan/example_sdl3_vulkan.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_win32_directx9
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx9/example_win32_directx9.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_win32_directx10
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx10/example_win32_directx10.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win32 example_win32_directx11
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx11/example_win32_directx11.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      # Windows 64-bits
+      - name: Build Win64 example_glfw_opengl2
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_opengl2/example_glfw_opengl2.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win64 example_glfw_opengl3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_opengl3/example_glfw_opengl3.vcxproj /p:Platform=x64 /p:Configuration=Release'
+
+      - name: Build Win64 example_glfw_vulkan
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
+
+      - name: Build Win64 example_sdl2_sdlrenderer2
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win64 example_sdl2_vulkan
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win64 example_sdl2_opengl2
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win64 example_sdl2_opengl3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl3/example_sdl2_opengl3.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win64 example_sdl2_directx11
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_directx11/example_sdl2_directx11.vcxproj /p:Platform=x64 /p:Configuration=Release'
+
+      - name: Build Win64 example_sdl3_opengl3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_opengl3/example_sdl3_opengl3.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win64 example_sdl3_sdlgpu3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_sdlgpu3/example_sdl3_sdlgpu3.vcxproj /p:Platform=x64 /p:Configuration=Release'
+
+      - name: Build Win64 example_sdl3_sdlrenderer3
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_sdlrenderer3/example_sdl3_sdlrenderer3.vcxproj /p:Platform=x64 /p:Configuration=Release'
+
+      - name: Build Win64 example_sdl3_vulkan
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_vulkan/example_sdl3_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win64 example_win32_directx9
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx9/example_win32_directx9.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win64 example_win32_directx10
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx10/example_win32_directx10.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
+
+      - name: Build Win64 example_win32_directx11
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx11/example_win32_directx11.vcxproj /p:Platform=x64 /p:Configuration=Release'
+
+      - name: Build Win64 example_win32_directx12
+        shell: cmd
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx12/example_win32_directx12.vcxproj /p:Platform=x64 /p:Configuration=Release'
+
+  Build-Linux:
+    runs-on: ubuntu-latest
+    name: Build - Linux
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
+    steps:
+    - uses: actions/checkout@v5
+      with:
+        path: ${{ github.workspace }}/imgui
+
+    - name: Install Dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libglfw3-dev libsdl2-dev gcc-multilib g++-multilib libfreetype6-dev libvulkan-dev
+
+    - name: Build example_null (extra warnings, gcc 32-bit)
+      run: |
+        make -C examples/example_null clean
+        CXXFLAGS="$CXXFLAGS -m32 -Werror" make -C examples/example_null WITH_EXTRA_WARNINGS=1
+
+    - name: Build example_null (extra warnings, gcc 64-bit)
+      run: |
+        make -C examples/example_null clean
+        CXXFLAGS="$CXXFLAGS -m64 -Werror" make -C examples/example_null WITH_EXTRA_WARNINGS=1
+
+    - name: Build example_null (extra warnings, clang 32-bit)
+      run: |
+        make -C examples/example_null clean
+        CXXFLAGS="$CXXFLAGS -m32 -Werror" CXX=clang++ make -C examples/example_null WITH_EXTRA_WARNINGS=1
+
+    - name: Build example_null (extra warnings, clang 64-bit)
+      run: |
+        make -C examples/example_null clean
+        CXXFLAGS="$CXXFLAGS -m64 -Werror" CXX=clang++ make -C examples/example_null WITH_EXTRA_WARNINGS=1
+
+    - name: Build example_null (extra warnings, empty IM_ASSERT)
+      run: |
+          cat > example_single_file.cpp <<'EOF'
+
+          #define IM_ASSERT(x)
+          #define IMGUI_IMPLEMENTATION
+          #include "misc/single_file/imgui_single_file.h"
+          #include "examples/example_null/main.cpp"
+
+          EOF
+          g++ -I. -std=c++11 -Wall -Wformat -Wextra -Werror -Wno-zero-as-null-pointer-constant -Wno-double-promotion -Wno-variadic-macros -Wno-empty-body -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (freetype)
+      run: |
+        make -C examples/example_null clean
+        make -C examples/example_null WITH_FREETYPE=1
+
+    - name: Build example_null (single file build)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (with ImWchar32)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_USE_WCHAR32
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (with large ImDrawIdx + pointer ImTextureID)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define ImTextureID void*
+        #define ImDrawIdx unsigned int
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (with IMGUI_DISABLE_OBSOLETE_FUNCTIONS)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (with IMGUI_DISABLE_OBSOLETE_KEYIO)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_DISABLE_OBSOLETE_KEYIO
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (with C++20)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_DISABLE_OBSOLETE_KEYIO
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++20 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (with IMGUI_DISABLE_DEMO_WINDOWS and IMGUI_DISABLE_DEBUG_TOOLS)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_DISABLE_DEMO_WINDOWS
+        #define IMGUI_DISABLE_DEBUG_TOOLS
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (with IMGUI_DISABLE_FILE_FUNCTIONS)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_DISABLE_FILE_FUNCTIONS
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (with IMGUI_USE_BGRA_PACKED_COLOR)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_USE_BGRA_PACKED_COLOR
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (with IM_VEC2_CLASS_EXTRA and IM_VEC4_CLASS_EXTRA)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        struct MyVec2 { float x; float y; MyVec2(float x, float y) : x(x), y(y) { } };
+        struct MyVec4 { float x; float y; float z; float w;
+        MyVec4(float x, float y, float z, float w) : x(x), y(y), z(z), w(w) { } };
+        #define IM_VEC2_CLASS_EXTRA                                             \
+                ImVec2(const MyVec2& f) { x = f.x; y = f.y; }                   \
+                operator MyVec2() const { return MyVec2(x, y); }
+        #define IM_VEC4_CLASS_EXTRA                                             \
+                ImVec4(const MyVec4& f) { x = f.x; y = f.y; z = f.z; w = f.w; } \
+                operator MyVec4() const { return MyVec4(x, y, z, w); }
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        g++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (C++26, Clang)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_IMPLEMENTATION
+        #define IMGUI_DISABLE_DEMO_WINDOWS
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        clang++ -I. -std=c++26 -Wall -Wformat -fno-exceptions -fno-threadsafe-statics -lc -lm -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (without c++ runtime, Clang)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_IMPLEMENTATION
+        #define IMGUI_DISABLE_DEMO_WINDOWS
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        clang++ -I. -std=c++11 -Wall -Wformat -nodefaultlibs -fno-rtti -fno-exceptions -fno-threadsafe-statics -lc -lm -o example_single_file example_single_file.cpp
+
+    - name: Build example_glfw_opengl2
+      run: make -C examples/example_glfw_opengl2
+
+    - name: Build example_glfw_opengl3
+      run: make -C examples/example_glfw_opengl3
+      if: github.event_name == 'workflow_run'
+
+    - name: Build example_sdl2_opengl2
+      run: make -C examples/example_sdl2_opengl2
+      if: github.event_name == 'workflow_run'
+
+    - name: Build example_sdl2_opengl3
+      run: make -C examples/example_sdl2_opengl3
+
+    - name: Build with IMGUI_IMPL_VULKAN_NO_PROTOTYPES
+      run: g++ -c -I. -std=c++11 -DIMGUI_IMPL_VULKAN_NO_PROTOTYPES=1 backends/imgui_impl_vulkan.cpp
+
+  Build-MacOS:
+    runs-on: macos-latest
+    name: Build - MacOS
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
+    steps:
+    - uses: actions/checkout@v5
+      with:
+        path: ${{ github.workspace }}/imgui
+
+    - name: Install Dependencies
+      run: |
+        brew install glfw3 sdl2 sdl3
+
+    - name: Build example_null (extra warnings, clang 64-bit)
+      run: make -C examples/example_null WITH_EXTRA_WARNINGS=1
+
+    - name: Build example_null (single file build)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        clang++ -I. -std=c++11 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (single file build, c++20)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        clang++ -I. -std=c++20 -Wall -Wformat -o example_single_file example_single_file.cpp
+
+    - name: Build example_null (without c++ runtime)
+      run: |
+        cat > example_single_file.cpp <<'EOF'
+
+        #define IMGUI_IMPLEMENTATION
+        #include "misc/single_file/imgui_single_file.h"
+        #include "examples/example_null/main.cpp"
+
+        EOF
+        clang++ -I. -std=c++11 -Wall -Wformat -nodefaultlibs -fno-rtti -fno-exceptions -fno-threadsafe-statics -lc -lm -o example_single_file example_single_file.cpp
+
+    - name: Build example_glfw_opengl2
+      run: make -C examples/example_glfw_opengl2
+
+    - name: Build example_glfw_opengl3
+      run: make -C examples/example_glfw_opengl3
+      if: github.event_name == 'workflow_run'
+
+    - name: Build example_glfw_metal
+      run: make -C examples/example_glfw_metal
+
+    - name: Build example_sdl2_metal
+      run: make -C examples/example_sdl2_metal
+
+    - name: Build example_sdl2_opengl2
+      run: make -C examples/example_sdl2_opengl2
+      if: github.event_name == 'workflow_run'
+
+    - name: Build example_sdl2_opengl3
+      run: make -C examples/example_sdl2_opengl3
+
+    - name: Build example_sdl3_opengl3
+      run: make -C examples/example_sdl3_opengl3
+
+    - name: Build example_apple_metal
+      run: xcodebuild -project examples/example_apple_metal/example_apple_metal.xcodeproj -target example_apple_metal_macos
+
+    - name: Build example_apple_opengl2
+      run: xcodebuild -project examples/example_apple_opengl2/example_apple_opengl2.xcodeproj -target example_osx_opengl2
+
+  Build-iOS:
+    runs-on: macos-14
+    name: Build - iOS
+
+    steps:
+    - uses: actions/checkout@v5
+
+    - name: Build example_apple_metal
+      run: |
+        # Code signing is required, but we disable it because it is irrelevant for CI builds.
+        xcodebuild -project examples/example_apple_metal/example_apple_metal.xcodeproj -target example_apple_metal_ios CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED=NO
+
+  Build-Emscripten:
+    runs-on: ubuntu-latest
+    name: Build - Emscripten
+
+    steps:
+    - uses: actions/checkout@v5
+
+    - name: Install Dependencies
+      run: |
+        wget -q https://github.com/emscripten-core/emsdk/archive/master.tar.gz
+        tar -xvf master.tar.gz
+        emsdk-master/emsdk update
+        emsdk-master/emsdk install latest
+        emsdk-master/emsdk activate latest
+        sudo apt-get install build-essential
+
+    - name: Build example_sdl2_opengl3 with Emscripten
+      run: |
+        pushd emsdk-master
+        source ./emsdk_env.sh
+        popd
+        make -C examples/example_sdl2_opengl3 -f Makefile.emscripten
+
+    # This build compiles example_glfw_wgpu using Makefile.emscripten and Emscripten GLFW built-in implementation (-sUSE_GLFW=3)
+    # This ensures 2 things: the make build works, and the GLFW built-in implementation is tested
+    - name: Build example_glfw_wgpu with Emscripten/Makefile
+      run: |
+        pushd emsdk-master
+        source ./emsdk_env.sh
+        popd
+        make -C examples/example_glfw_wgpu -f Makefile.emscripten
+
+    # This build compiles example_glfw_wgpu using CMakeLists.txt and Emscripten GLFW contrib port (--use-port=contrib.glfw3)
+    # This ensures 2 things: the CMake build works, and the GLFW contrib port is tested
+    - name: Build example_glfw_wgpu with Emscripten/CMake
+      run: |
+        pushd emsdk-master
+        source ./emsdk_env.sh
+        popd
+        emcc -v
+        emcmake cmake -B build -DCMAKE_BUILD_TYPE=Release examples/example_glfw_wgpu
+        cmake --build build
+
+  Build-Android:
+    runs-on: ubuntu-latest
+    name: Build - Android
+
+    steps:
+    - uses: actions/checkout@v5
+
+    - name: Build example_android_opengl3
+      run: |
+        cd examples/example_android_opengl3/android
+        gradle assembleDebug --stacktrace
+
+  Test-Windows:
+    runs-on: windows-2025
+    name: Test - Windows
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
+    env:
+      MSBUILD_PATH: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\
+
+    steps:
+      - uses: actions/checkout@v5
+        with:
+          path: ${{ github.workspace }}/imgui
+
+      - uses: actions/checkout@v5
+        continue-on-error: true
+        with:
+          fetch-depth: 1
+          repository: ocornut/imgui_test_engine
+          path: ${{ github.workspace }}/imgui_test_engine
+          submodules: true
+
+      - name: Fix Tests Projects
+        shell: powershell
+        working-directory: ${{ github.workspace }}/imgui_test_engine
+        run: |
+          # WARNING: This will need updating if toolset/sdk change in project files!
+          gci -recurse -filter "*.vcxproj" | ForEach-Object {
+            # Fix SDK and toolset for most samples.
+            (Get-Content $_.FullName) -Replace "<PlatformToolset>v110</PlatformToolset>","<PlatformToolset>v142</PlatformToolset>" | Set-Content -Path $_.FullName
+            (Get-Content $_.FullName) -Replace "<WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>","<WindowsTargetPlatformVersion>10.0.20348.0</WindowsTargetPlatformVersion>" | Set-Content -Path $_.FullName
+            # Fix SDK and toolset for samples that require newer SDK/toolset. At the moment it is only dx12.
+            (Get-Content $_.FullName) -Replace "<PlatformToolset>v140</PlatformToolset>","<PlatformToolset>v142</PlatformToolset>" | Set-Content -Path $_.FullName
+            (Get-Content $_.FullName) -Replace "<WindowsTargetPlatformVersion>10.0.14393.0</WindowsTargetPlatformVersion>","<WindowsTargetPlatformVersion>10.0.20348.0</WindowsTargetPlatformVersion>" | Set-Content -Path $_.FullName
+          }
+
+      - name: Build Tests
+        shell: cmd
+        working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+        run: '"%MSBUILD_PATH%\MSBuild.exe" imgui_test_suite.vcxproj /p:Platform=x64 /p:Configuration=Release /p:ClFlags=/WX -maxcpucount:%NUMBER_OF_PROCESSORS%'
+
+      - name: Run Tests
+        working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+        run: Release/imgui_test_suite.exe -nogui -nopause -v2 -ve4 tests
+
+      - name: Check for Docking
+        id: check_docking
+        shell: bash
+        working-directory: ${{ github.workspace }}/imgui
+        run: echo "has_dock=$(grep -q "#define IMGUI_HAS_DOCK" imgui.h && echo true || echo false)" >> $GITHUB_OUTPUT
+
+      - name: Run Viewport Tests
+        if: steps.check_docking.outputs.has_dock == 'true'
+        working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+        run: Release/imgui_test_suite.exe -nogui -nopause -v2 -ve4 -viewport-mock viewport
+
+  Test-Linux:
+    runs-on: ubuntu-latest
+    name: Test - Linux
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
+    steps:
+    - uses: actions/checkout@v5
+      with:
+        path: ${{ github.workspace }}/imgui
+
+    - uses: actions/checkout@v5
+      with:
+        fetch-depth: 1
+        repository: ocornut/imgui_test_engine
+        path: ${{ github.workspace }}/imgui_test_engine
+        submodules: true
+
+    - name: Build Tests
+      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+      run: make -j$(nproc)
+
+    - name: Run Tests
+      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+      run: ./imgui_test_suite -nogui -nopause -v2 -ve4 tests
+
+    - name: Check for Docking
+      id: check_docking
+      working-directory: ${{ github.workspace }}/imgui
+      run: echo "has_dock=$(grep -q "#define IMGUI_HAS_DOCK" imgui.h && echo true || echo false)" >> $GITHUB_OUTPUT
+
+    - name: Run Viewport Tests
+      if: steps.check_docking.outputs.has_dock == 'true'
+      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+      run: ./imgui_test_suite -nogui -nopause -v2 -ve4 -viewport-mock viewport
+
+  Test-MacOS:
+    runs-on: macos-latest
+    name: Test - MacOS
+
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}/imgui
+
+    steps:
+    - uses: actions/checkout@v5
+      with:
+        path: ${{ github.workspace }}/imgui
+
+    - uses: actions/checkout@v5
+      with:
+        fetch-depth: 1
+        repository: ocornut/imgui_test_engine
+        path: ${{ github.workspace }}/imgui_test_engine
+        submodules: true
+
+    - name: Build Tests
+      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+      run: make -j$(nproc)
+
+    - name: Run Tests
+      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+      run: ./imgui_test_suite -nogui -nopause -v2 -ve4 tests
+
+    - name: Check for Docking
+      id: check_docking
+      working-directory: ${{ github.workspace }}/imgui
+      run: echo "has_dock=$(grep -q "#define IMGUI_HAS_DOCK" imgui.h && echo true || echo false)" >> $GITHUB_OUTPUT
+
+    - name: Run Viewport Tests
+      if: steps.check_docking.outputs.has_dock == 'true'
+      working-directory: ${{ github.workspace }}/imgui_test_engine/imgui_test_suite
+      run: ./imgui_test_suite -nogui -nopause -v2 -ve4 -viewport-mock viewport

lib/imgui/.github/workflows/build_windows_vulkan_libs.ps1

@@ -0,0 +1,38 @@
+# This is current meant to be run manually, occasionally:
+# - Run then zip the contents of vulkanArtifact/ into e.g. vulkan_windows_libs_1.4.326
+# - Upload as an attachment to https://github.com/ocornut/imgui/pull/8925 then change filename in build.yml
+# - There is a build_windows_vulkan_libs.yml in commit history that we removed thinking this is run so rarely we don't need to pollute CI UI with it.
+
+# Set default vulkan version if none provided
+if (-not $env:VULKAN_TAG) { $env:VULKAN_TAG = "1.4.326" }
+
+# Create output folder
+mkdir vulkanArtifact
+
+# Download Vulkan Headers
+
+Invoke-WebRequest -Uri "https://github.com/KhronosGroup/Vulkan-Headers/archive/refs/tags/v$($env:VULKAN_TAG).zip" -OutFile Vulkan-Headers-$($env:VULKAN_TAG).zip
+Expand-Archive -Path Vulkan-Headers-$($env:VULKAN_TAG).zip
+
+# Copy Vulkan Headers to artifact folder
+
+cp -R Vulkan-Headers-$($env:VULKAN_TAG)\Vulkan-Headers-$($env:VULKAN_TAG)\include vulkanArtifact\Include
+
+# Download Vulkan Loader
+
+Invoke-WebRequest -Uri "https://github.com/KhronosGroup/Vulkan-Loader/archive/refs/tags/v$($env:VULKAN_TAG).zip" -OutFile Vulkan-Loader-$($env:VULKAN_TAG).zip
+Expand-Archive -Path Vulkan-Loader-$($env:VULKAN_TAG).zip
+
+# Build Vulkan Loader x64
+
+cmake -S Vulkan-Loader-$($env:VULKAN_TAG)\Vulkan-Loader-$($env:VULKAN_TAG) -B VulkanLoader-build64 -D UPDATE_DEPS=On -A x64
+cmake --build VulkanLoader-build64
+mkdir vulkanArtifact\Lib
+copy VulkanLoader-build64\loader\Debug\vulkan-1.lib vulkanArtifact\Lib
+
+# Build Vulkan Loader win32
+
+cmake -S Vulkan-Loader-$($env:VULKAN_TAG)\Vulkan-Loader-$($env:VULKAN_TAG) -B VulkanLoader-build32 -D UPDATE_DEPS=On -A Win32
+cmake --build VulkanLoader-build32
+mkdir vulkanArtifact\Lib32
+copy VulkanLoader-build32\loader\Debug\vulkan-1.lib vulkanArtifact\Lib32

lib/imgui/.github/workflows/manual.yml

@@ -0,0 +1,12 @@
+#
+# This is a dummy workflow used to trigger full builds manually.
+#
+name: manual
+
+on: workflow_dispatch
+
+jobs:
+  manual:
+    runs-on: ubuntu-latest
+    steps:
+      - run: exit 0

lib/imgui/.github/workflows/scheduled.yml

@@ -0,0 +1,15 @@
+#
+# This is a dummy workflow used to trigger scheduled builds. Forked repositories most likely should disable this
+# workflow to avoid daily builds of inactive repositories.
+#
+name: scheduled
+
+on:
+  schedule:
+    - cron:  '0 9 * * *'
+
+jobs:
+  scheduled:
+    runs-on: ubuntu-latest
+    steps:
+      - run: exit 0

lib/imgui/.github/workflows/static-analysis.yml

@@ -0,0 +1,46 @@
+name: static-analysis
+
+on:
+  workflow_run:
+    # Perform static analysis together with build workflow. Build triggers of "build" workflow do not need to be repeated here.
+    workflows:
+      - build
+    types:
+      - requested
+
+jobs:
+  PVS-Studio:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - name: Install Dependencies
+        env:
+          # The Secret variable setup in GitHub must be in format: "name_or_email key", on a single line
+          PVS_STUDIO_LICENSE: ${{ secrets.PVS_STUDIO_LICENSE }}
+        run: |
+          if [[ "$PVS_STUDIO_LICENSE" != "" ]];
+          then
+            wget -q https://files.viva64.com/etc/pubkey.txt
+            sudo apt-key add pubkey.txt
+            sudo wget -O /etc/apt/sources.list.d/viva64.list https://files.viva64.com/etc/viva64.list
+            sudo apt-get update
+            sudo apt-get install -y pvs-studio
+            pvs-studio-analyzer credentials -o pvs-studio.lic $PVS_STUDIO_LICENSE
+          fi
+
+      - name: PVS-Studio static analysis
+        run: |
+          if [[ ! -f pvs-studio.lic ]];
+          then
+            echo "PVS Studio license is missing. No analysis will be performed."
+            echo "If you have a PVS Studio license please create a project secret named PVS_STUDIO_LICENSE with your license."
+            echo "You may use a free license. More information at https://www.viva64.com/en/b/0457/"
+            exit 0
+          fi
+          cd examples/example_null
+          pvs-studio-analyzer trace -- make WITH_EXTRA_WARNINGS=1
+          pvs-studio-analyzer analyze -e ../../imstb_rectpack.h -e ../../imstb_textedit.h -e ../../imstb_truetype.h -l ../../pvs-studio.lic -o pvs-studio.log
+          plog-converter -a 'GA:1,2;OP:1' -d V1071 -t errorfile -w pvs-studio.log

lib/imgui/.gitignore

@@ -0,0 +1,79 @@
+## OSX artifacts
+.DS_Store
+
+## Dear ImGui artifacts
+imgui.ini
+imgui*.ini
+
+## General build artifacts
+*.o
+*.obj
+*.exe
+examples/*/Debug/*
+examples/*/Release/*
+examples/*/x64/*
+examples/*.tmp
+
+## Visual Studio artifacts
+.vs
+ipch
+*.opensdf
+*.log
+*.pdb
+*.ilk
+*.user
+*.sdf
+*.suo
+*.VC.db
+*.VC.VC.opendb
+
+## Getting files created in JSON/Schemas/Catalog/ from a VS2022 update
+JSON/
+
+## Commonly used CMake directories & CMake CPM cache
+build*/
+.cache
+
+## Xcode & macOS artifacts
+project.xcworkspace
+xcuserdata
+examples/*/*.dSYM
+
+## Emscripten artifacts
+examples/*.o.tmp
+examples/*.out.js
+examples/*.out.wasm
+examples/example_glfw_opengl3/web/*
+examples/example_glfw_wgpu/web/*
+examples/example_glfw_wgpu/external/*
+examples/example_sdl2_opengl3/web/*
+examples/example_sdl2_wgpu/web/*
+examples/example_sdl3_opengl3/web/*
+examples/example_sdl3_wgpu/web/*
+
+## JetBrains IDE artifacts
+.idea
+cmake-build-*
+
+## VS code artifacts
+.vscode
+
+## Unix executables from our example Makefiles
+examples/example_apple_metal/example_apple_metal
+examples/example_apple_opengl2/example_apple_opengl2
+examples/example_glfw_metal/example_glfw_metal
+examples/example_glfw_opengl2/example_glfw_opengl2
+examples/example_glfw_opengl3/example_glfw_opengl3
+examples/example_glfw_vulkan/example_glfw_vulkan
+examples/example_glut_opengl2/example_glut_opengl2
+examples/example_null/example_null
+examples/example_sdl2_metal/example_sdl2_metal
+examples/example_sdl2_opengl2/example_sdl2_opengl2
+examples/example_sdl2_opengl3/example_sdl2_opengl3
+examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2
+examples/example_sdl2_vulkan/example_sdl2_vulkan
+examples/example_sdl3_metal/example_sdl3_metal
+examples/example_sdl3_opengl3/example_sdl3_opengl3
+examples/example_sdl3_sdlgpu3/example_sdl3_sdlgpu3
+examples/example_sdl3_sdlrenderer3/example_sdl3_sdlrenderer3
+examples/example_sdl3_vulkan/example_sdl3_vulkan

lib/imgui/LICENSE.txt

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2025 Omar Cornut
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

lib/imgui/backends/imgui_impl_allegro5.cpp

@@ -0,0 +1,699 @@
+// dear imgui: Renderer + Platform Backend for Allegro 5
+// (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy ALLEGRO_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Clipboard support (from Allegro 5.1.12).
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+// Missing features or Issues:
+//  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
+//  [ ] Platform: Missing gamepad support.
+//  [ ] Renderer: Multi-viewport support (multiple windows).
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2025-09-18: Call platform_io.ClearRendererHandlers() and platform_io.ClearPlatformHandlers() on shutdown.
+//  2025-08-12: Inputs: fixed missing support for ImGuiKey_PrintScreen under Windows, as raw Allegro 5 does not receive it.
+//  2025-08-12: Added ImGui_ImplAllegro5_SetDisplay() function to change current ALLEGRO_DISPLAY, as Allegro applications often need to do that.
+//  2025-07-07: Fixed texture update broken on some platforms where ALLEGRO_LOCK_WRITEONLY needed all texels to be rewritten.
+//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLGPU3_CreateFontsTexture() and ImGui_ImplSDLGPU3_DestroyFontsTexture().
+//  2025-02-18: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support.
+//  2025-01-06: Avoid calling al_set_mouse_cursor() repeatedly since it appears to leak on on X11 (#8256).
+//  2024-08-22: moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO:
+//               - io.GetClipboardTextFn    -> platform_io.Platform_GetClipboardTextFn
+//               - io.SetClipboardTextFn    -> platform_io.Platform_SetClipboardTextFn
+//  2022-11-30: Renderer: Restoring using al_draw_indexed_prim() when Allegro version is >= 5.2.5.
+//  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
+//  2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported).
+//  2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago) with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion.
+//  2022-01-17: Inputs: calling new io.AddMousePosEvent(), io.AddMouseButtonEvent(), io.AddMouseWheelEvent() API (1.87+).
+//  2022-01-17: Inputs: always calling io.AddKeyModsEvent() next and before key event (not in NewFrame) to fix input queue with very low framerates.
+//  2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range.
+//  2021-12-08: Renderer: Fixed mishandling of the ImDrawCmd::IdxOffset field! This is an old bug but it never had an effect until some internal rendering changes in 1.86.
+//  2021-08-17: Calling io.AddFocusEvent() on ALLEGRO_EVENT_DISPLAY_SWITCH_OUT/ALLEGRO_EVENT_DISPLAY_SWITCH_IN events.
+//  2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
+//  2021-05-19: Renderer: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
+//  2021-02-18: Change blending equation to preserve alpha in output buffer.
+//  2020-08-10: Inputs: Fixed horizontal mouse wheel direction.
+//  2019-12-05: Inputs: Added support for ImGuiMouseCursor_NotAllowed mouse cursor.
+//  2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter.
+//  2019-05-11: Inputs: Don't filter character value from ALLEGRO_EVENT_KEY_CHAR before calling AddInputCharacter().
+//  2019-04-30: Renderer: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
+//  2018-11-30: Platform: Added touchscreen support.
+//  2018-11-30: Misc: Setting up io.BackendPlatformName/io.BackendRendererName so they can be displayed in the About Window.
+//  2018-06-13: Platform: Added clipboard support (from Allegro 5.1.12).
+//  2018-06-13: Renderer: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
+//  2018-06-13: Renderer: Stopped using al_draw_indexed_prim() as it is buggy in Allegro's DX9 backend.
+//  2018-06-13: Renderer: Backup/restore transform and clipping rectangle.
+//  2018-06-11: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag.
+//  2018-04-18: Misc: Renamed file from imgui_impl_a5.cpp to imgui_impl_allegro5.cpp.
+//  2018-04-18: Misc: Added support for 32-bit vertex indices to avoid conversion at runtime. Added imconfig_allegro5.h to enforce 32-bit indices when included from imgui.h.
+//  2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplAllegro5_RenderDrawData() in the .h file so you can call it yourself.
+//  2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
+//  2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_allegro5.h"
+#include <stdint.h>     // uint64_t
+#include <cstring>      // memcpy
+
+// Allegro
+#include <allegro5/allegro.h>
+#include <allegro5/allegro_primitives.h>
+#ifdef _WIN32
+#include <allegro5/allegro_windows.h>
+#endif
+#define ALLEGRO_HAS_CLIPBOARD           ((ALLEGRO_VERSION_INT & ~ALLEGRO_UNSTABLE_BIT) >= ((5 << 24) | (1 << 16) | (12 << 8))) // Clipboard only supported from Allegro 5.1.12
+#define ALLEGRO_HAS_DRAW_INDEXED_PRIM   ((ALLEGRO_VERSION_INT & ~ALLEGRO_UNSTABLE_BIT) >= ((5 << 24) | (2 << 16) | ( 5 << 8))) // DX9 implementation of al_draw_indexed_prim() got fixed in Allegro 5.2.5
+
+// Visual Studio warnings
+#ifdef _MSC_VER
+#pragma warning (disable: 4127) // condition expression is constant
+#endif
+
+struct ImDrawVertAllegro
+{
+    ImVec2          pos;
+    ImVec2          uv;
+    ALLEGRO_COLOR   col;
+};
+
+// FIXME-OPT: Unfortunately Allegro doesn't support 32-bit packed colors so we have to convert them to 4 float as well..
+// FIXME-OPT: Consider inlining al_map_rgba()?
+// see https://github.com/liballeg/allegro5/blob/master/src/pixels.c#L554
+// and https://github.com/liballeg/allegro5/blob/master/include/allegro5/internal/aintern_pixels.h
+#define DRAW_VERT_IMGUI_TO_ALLEGRO(DST, SRC)  { (DST)->pos = (SRC)->pos; (DST)->uv = (SRC)->uv; unsigned char* c = (unsigned char*)&(SRC)->col; (DST)->col = al_map_rgba(c[0], c[1], c[2], c[3]); }
+
+// Allegro Data
+struct ImGui_ImplAllegro5_Data
+{
+    ALLEGRO_DISPLAY*            Display;
+    ALLEGRO_BITMAP*             Texture;
+    double                      Time;
+    ALLEGRO_MOUSE_CURSOR*       MouseCursorInvisible;
+    ALLEGRO_VERTEX_DECL*        VertexDecl;
+    char*                       ClipboardTextData;
+    ImGuiMouseCursor            LastCursor;
+
+    ImVector<ImDrawVertAllegro> BufVertices;
+    ImVector<int>               BufIndices;
+
+    ImGui_ImplAllegro5_Data()   { memset((void*)this, 0, sizeof(*this)); }
+};
+
+// Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+// FIXME: multi-context support is not well tested and probably dysfunctional in this backend.
+static ImGui_ImplAllegro5_Data* ImGui_ImplAllegro5_GetBackendData()     { return ImGui::GetCurrentContext() ? (ImGui_ImplAllegro5_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr; }
+
+static void ImGui_ImplAllegro5_SetupRenderState(ImDrawData* draw_data)
+{
+    // Setup blending
+    al_set_separate_blender(ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA, ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_INVERSE_ALPHA);
+
+    // Setup orthographic projection matrix
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
+    {
+        float L = draw_data->DisplayPos.x;
+        float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
+        float T = draw_data->DisplayPos.y;
+        float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
+        ALLEGRO_TRANSFORM transform;
+        al_identity_transform(&transform);
+        al_use_transform(&transform);
+        al_orthographic_transform(&transform, L, T, 1.0f, R, B, -1.0f);
+        al_use_projection_transform(&transform);
+    }
+}
+
+// Render function.
+void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
+{
+    // Avoid rendering when minimized
+    if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
+        return;
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplAllegro5_UpdateTexture(tex);
+
+    // Backup Allegro state that will be modified
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    ALLEGRO_TRANSFORM last_transform = *al_get_current_transform();
+    ALLEGRO_TRANSFORM last_projection_transform = *al_get_current_projection_transform();
+    int last_clip_x, last_clip_y, last_clip_w, last_clip_h;
+    al_get_clipping_rectangle(&last_clip_x, &last_clip_y, &last_clip_w, &last_clip_h);
+    int last_blender_op, last_blender_src, last_blender_dst;
+    al_get_blender(&last_blender_op, &last_blender_src, &last_blender_dst);
+
+    // Setup desired render state
+    ImGui_ImplAllegro5_SetupRenderState(draw_data);
+
+    // Render command lists
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        ImVector<ImDrawVertAllegro>& vertices = bd->BufVertices;
+#if ALLEGRO_HAS_DRAW_INDEXED_PRIM
+        vertices.resize(draw_list->VtxBuffer.Size);
+        for (int i = 0; i < draw_list->VtxBuffer.Size; i++)
+        {
+            const ImDrawVert* src_v = &draw_list->VtxBuffer[i];
+            ImDrawVertAllegro* dst_v = &vertices[i];
+            DRAW_VERT_IMGUI_TO_ALLEGRO(dst_v, src_v);
+        }
+        const int* indices = nullptr;
+        if (sizeof(ImDrawIdx) == 2)
+        {
+            // FIXME-OPT: Allegro doesn't support 16-bit indices.
+            // You can '#define ImDrawIdx int' in imconfig.h to request Dear ImGui to output 32-bit indices.
+            // Otherwise, we convert them from 16-bit to 32-bit at runtime here, which works perfectly but is a little wasteful.
+            bd->BufIndices.resize(draw_list->IdxBuffer.Size);
+            for (int i = 0; i < draw_list->IdxBuffer.Size; ++i)
+                bd->BufIndices[i] = (int)draw_list->IdxBuffer.Data[i];
+            indices = bd->BufIndices.Data;
+        }
+        else if (sizeof(ImDrawIdx) == 4)
+        {
+            indices = (const int*)draw_list->IdxBuffer.Data;
+        }
+#else
+        // Allegro's implementation of al_draw_indexed_prim() for DX9 was broken until 5.2.5. Unindex buffers ourselves while converting vertex format.
+        vertices.resize(draw_list->IdxBuffer.Size);
+        for (int i = 0; i < draw_list->IdxBuffer.Size; i++)
+        {
+            const ImDrawVert* src_v = &draw_list->VtxBuffer[draw_list->IdxBuffer[i]];
+            ImDrawVertAllegro* dst_v = &vertices[i];
+            DRAW_VERT_IMGUI_TO_ALLEGRO(dst_v, src_v);
+        }
+#endif
+
+        // Render command lists
+        ImVec2 clip_off = draw_data->DisplayPos;
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplAllegro5_SetupRenderState(draw_data);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
+                ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                // Apply scissor/clipping rectangle, Draw
+                ALLEGRO_BITMAP* texture = (ALLEGRO_BITMAP*)pcmd->GetTexID();
+                al_set_clipping_rectangle(clip_min.x, clip_min.y, clip_max.x - clip_min.x, clip_max.y - clip_min.y);
+#if ALLEGRO_HAS_DRAW_INDEXED_PRIM
+                al_draw_indexed_prim(&vertices[0], bd->VertexDecl, texture, &indices[pcmd->IdxOffset], pcmd->ElemCount, ALLEGRO_PRIM_TRIANGLE_LIST);
+#else
+                al_draw_prim(&vertices[0], bd->VertexDecl, texture, pcmd->IdxOffset, pcmd->IdxOffset + pcmd->ElemCount, ALLEGRO_PRIM_TRIANGLE_LIST);
+#endif
+            }
+        }
+    }
+
+    // Restore modified Allegro state
+    al_set_blender(last_blender_op, last_blender_src, last_blender_dst);
+    al_set_clipping_rectangle(last_clip_x, last_clip_y, last_clip_w, last_clip_h);
+    al_use_transform(&last_transform);
+    al_use_projection_transform(&last_projection_transform);
+}
+
+bool ImGui_ImplAllegro5_CreateDeviceObjects()
+{
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+
+    // Create an invisible mouse cursor
+    // Because al_hide_mouse_cursor() seems to mess up with the actual inputs..
+    ALLEGRO_BITMAP* mouse_cursor = al_create_bitmap(8, 8);
+    bd->MouseCursorInvisible = al_create_mouse_cursor(mouse_cursor, 0, 0);
+    al_destroy_bitmap(mouse_cursor);
+
+    return true;
+}
+
+void ImGui_ImplAllegro5_UpdateTexture(ImTextureData* tex)
+{
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+
+        // Create texture
+        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+        const int new_bitmap_flags = al_get_new_bitmap_flags();
+        int new_bitmap_format = al_get_new_bitmap_format();
+        al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP | ALLEGRO_MIN_LINEAR | ALLEGRO_MAG_LINEAR);
+        al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_ABGR_8888_LE);
+        ALLEGRO_BITMAP* cpu_bitmap = al_create_bitmap(tex->Width, tex->Height);
+        IM_ASSERT(cpu_bitmap != nullptr && "Backend failed to create texture!");
+
+        // Upload pixels
+        ALLEGRO_LOCKED_REGION* locked_region = al_lock_bitmap(cpu_bitmap, al_get_bitmap_format(cpu_bitmap), ALLEGRO_LOCK_WRITEONLY);
+        IM_ASSERT(locked_region != nullptr && "Backend failed to create texture!");
+        memcpy(locked_region->data, tex->GetPixels(), tex->GetSizeInBytes());
+        al_unlock_bitmap(cpu_bitmap);
+
+        // Convert software texture to hardware texture.
+        al_set_new_bitmap_flags(ALLEGRO_VIDEO_BITMAP);
+        al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_ANY_32_WITH_ALPHA);
+        ALLEGRO_BITMAP* gpu_bitmap = al_clone_bitmap(cpu_bitmap);
+        al_destroy_bitmap(cpu_bitmap);
+        IM_ASSERT(gpu_bitmap != nullptr && "Backend failed to create texture!");
+
+        al_set_new_bitmap_flags(new_bitmap_flags);
+        al_set_new_bitmap_format(new_bitmap_format);
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)gpu_bitmap);
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Update selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
+        ImTextureRect r = tex->UpdateRect; // Bounding box encompassing all individual updates
+        ALLEGRO_BITMAP* gpu_bitmap = (ALLEGRO_BITMAP*)(intptr_t)tex->TexID;
+        ALLEGRO_LOCKED_REGION* locked_region = al_lock_bitmap_region(gpu_bitmap, r.x, r.y, r.w, r.h, al_get_bitmap_format(gpu_bitmap), ALLEGRO_LOCK_WRITEONLY);
+        IM_ASSERT(locked_region && "Backend failed to update texture!");
+        for (int y = 0; y < r.h; y++)
+            memcpy((unsigned char*)locked_region->data + locked_region->pitch * y, tex->GetPixelsAt(r.x, r.y + y), r.w * tex->BytesPerPixel); // dst, src, block pitch
+        al_unlock_bitmap(gpu_bitmap);
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantDestroy)
+    {
+        ALLEGRO_BITMAP* backend_tex = (ALLEGRO_BITMAP*)(intptr_t)tex->TexID;
+        if (backend_tex)
+            al_destroy_bitmap(backend_tex);
+
+        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->SetStatus(ImTextureStatus_Destroyed);
+    }
+}
+
+void ImGui_ImplAllegro5_InvalidateDeviceObjects()
+{
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+
+    // Destroy all textures
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+        {
+            tex->SetStatus(ImTextureStatus_WantDestroy);
+            ImGui_ImplAllegro5_UpdateTexture(tex);
+        }
+
+    // Destroy mouse cursor
+    if (bd->MouseCursorInvisible)
+    {
+        al_destroy_mouse_cursor(bd->MouseCursorInvisible);
+        bd->MouseCursorInvisible = nullptr;
+    }
+}
+
+#if ALLEGRO_HAS_CLIPBOARD
+static const char* ImGui_ImplAllegro5_GetClipboardText(ImGuiContext*)
+{
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    if (bd->ClipboardTextData)
+        al_free(bd->ClipboardTextData);
+    bd->ClipboardTextData = al_get_clipboard_text(bd->Display);
+    return bd->ClipboardTextData;
+}
+
+static void ImGui_ImplAllegro5_SetClipboardText(ImGuiContext*, const char* text)
+{
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    al_set_clipboard_text(bd->Display, text);
+}
+#endif
+
+// Not static to allow third-party code to use that if they want to (but undocumented)
+ImGuiKey ImGui_ImplAllegro5_KeyCodeToImGuiKey(int key_code);
+ImGuiKey ImGui_ImplAllegro5_KeyCodeToImGuiKey(int key_code)
+{
+    switch (key_code)
+    {
+        case ALLEGRO_KEY_TAB: return ImGuiKey_Tab;
+        case ALLEGRO_KEY_LEFT: return ImGuiKey_LeftArrow;
+        case ALLEGRO_KEY_RIGHT: return ImGuiKey_RightArrow;
+        case ALLEGRO_KEY_UP: return ImGuiKey_UpArrow;
+        case ALLEGRO_KEY_DOWN: return ImGuiKey_DownArrow;
+        case ALLEGRO_KEY_PGUP: return ImGuiKey_PageUp;
+        case ALLEGRO_KEY_PGDN: return ImGuiKey_PageDown;
+        case ALLEGRO_KEY_HOME: return ImGuiKey_Home;
+        case ALLEGRO_KEY_END: return ImGuiKey_End;
+        case ALLEGRO_KEY_INSERT: return ImGuiKey_Insert;
+        case ALLEGRO_KEY_DELETE: return ImGuiKey_Delete;
+        case ALLEGRO_KEY_BACKSPACE: return ImGuiKey_Backspace;
+        case ALLEGRO_KEY_SPACE: return ImGuiKey_Space;
+        case ALLEGRO_KEY_ENTER: return ImGuiKey_Enter;
+        case ALLEGRO_KEY_ESCAPE: return ImGuiKey_Escape;
+        case ALLEGRO_KEY_QUOTE: return ImGuiKey_Apostrophe;
+        case ALLEGRO_KEY_COMMA: return ImGuiKey_Comma;
+        case ALLEGRO_KEY_MINUS: return ImGuiKey_Minus;
+        case ALLEGRO_KEY_FULLSTOP: return ImGuiKey_Period;
+        case ALLEGRO_KEY_SLASH: return ImGuiKey_Slash;
+        case ALLEGRO_KEY_SEMICOLON: return ImGuiKey_Semicolon;
+        case ALLEGRO_KEY_EQUALS: return ImGuiKey_Equal;
+        case ALLEGRO_KEY_OPENBRACE: return ImGuiKey_LeftBracket;
+        case ALLEGRO_KEY_BACKSLASH: return ImGuiKey_Backslash;
+        case ALLEGRO_KEY_CLOSEBRACE: return ImGuiKey_RightBracket;
+        case ALLEGRO_KEY_TILDE: return ImGuiKey_GraveAccent;
+        case ALLEGRO_KEY_CAPSLOCK: return ImGuiKey_CapsLock;
+        case ALLEGRO_KEY_SCROLLLOCK: return ImGuiKey_ScrollLock;
+        case ALLEGRO_KEY_NUMLOCK: return ImGuiKey_NumLock;
+        case ALLEGRO_KEY_PRINTSCREEN: return ImGuiKey_PrintScreen;
+        case ALLEGRO_KEY_PAUSE: return ImGuiKey_Pause;
+        case ALLEGRO_KEY_PAD_0: return ImGuiKey_Keypad0;
+        case ALLEGRO_KEY_PAD_1: return ImGuiKey_Keypad1;
+        case ALLEGRO_KEY_PAD_2: return ImGuiKey_Keypad2;
+        case ALLEGRO_KEY_PAD_3: return ImGuiKey_Keypad3;
+        case ALLEGRO_KEY_PAD_4: return ImGuiKey_Keypad4;
+        case ALLEGRO_KEY_PAD_5: return ImGuiKey_Keypad5;
+        case ALLEGRO_KEY_PAD_6: return ImGuiKey_Keypad6;
+        case ALLEGRO_KEY_PAD_7: return ImGuiKey_Keypad7;
+        case ALLEGRO_KEY_PAD_8: return ImGuiKey_Keypad8;
+        case ALLEGRO_KEY_PAD_9: return ImGuiKey_Keypad9;
+        case ALLEGRO_KEY_PAD_DELETE: return ImGuiKey_KeypadDecimal;
+        case ALLEGRO_KEY_PAD_SLASH: return ImGuiKey_KeypadDivide;
+        case ALLEGRO_KEY_PAD_ASTERISK: return ImGuiKey_KeypadMultiply;
+        case ALLEGRO_KEY_PAD_MINUS: return ImGuiKey_KeypadSubtract;
+        case ALLEGRO_KEY_PAD_PLUS: return ImGuiKey_KeypadAdd;
+        case ALLEGRO_KEY_PAD_ENTER: return ImGuiKey_KeypadEnter;
+        case ALLEGRO_KEY_PAD_EQUALS: return ImGuiKey_KeypadEqual;
+        case ALLEGRO_KEY_LCTRL: return ImGuiKey_LeftCtrl;
+        case ALLEGRO_KEY_LSHIFT: return ImGuiKey_LeftShift;
+        case ALLEGRO_KEY_ALT: return ImGuiKey_LeftAlt;
+        case ALLEGRO_KEY_LWIN: return ImGuiKey_LeftSuper;
+        case ALLEGRO_KEY_RCTRL: return ImGuiKey_RightCtrl;
+        case ALLEGRO_KEY_RSHIFT: return ImGuiKey_RightShift;
+        case ALLEGRO_KEY_ALTGR: return ImGuiKey_RightAlt;
+        case ALLEGRO_KEY_RWIN: return ImGuiKey_RightSuper;
+        case ALLEGRO_KEY_MENU: return ImGuiKey_Menu;
+        case ALLEGRO_KEY_0: return ImGuiKey_0;
+        case ALLEGRO_KEY_1: return ImGuiKey_1;
+        case ALLEGRO_KEY_2: return ImGuiKey_2;
+        case ALLEGRO_KEY_3: return ImGuiKey_3;
+        case ALLEGRO_KEY_4: return ImGuiKey_4;
+        case ALLEGRO_KEY_5: return ImGuiKey_5;
+        case ALLEGRO_KEY_6: return ImGuiKey_6;
+        case ALLEGRO_KEY_7: return ImGuiKey_7;
+        case ALLEGRO_KEY_8: return ImGuiKey_8;
+        case ALLEGRO_KEY_9: return ImGuiKey_9;
+        case ALLEGRO_KEY_A: return ImGuiKey_A;
+        case ALLEGRO_KEY_B: return ImGuiKey_B;
+        case ALLEGRO_KEY_C: return ImGuiKey_C;
+        case ALLEGRO_KEY_D: return ImGuiKey_D;
+        case ALLEGRO_KEY_E: return ImGuiKey_E;
+        case ALLEGRO_KEY_F: return ImGuiKey_F;
+        case ALLEGRO_KEY_G: return ImGuiKey_G;
+        case ALLEGRO_KEY_H: return ImGuiKey_H;
+        case ALLEGRO_KEY_I: return ImGuiKey_I;
+        case ALLEGRO_KEY_J: return ImGuiKey_J;
+        case ALLEGRO_KEY_K: return ImGuiKey_K;
+        case ALLEGRO_KEY_L: return ImGuiKey_L;
+        case ALLEGRO_KEY_M: return ImGuiKey_M;
+        case ALLEGRO_KEY_N: return ImGuiKey_N;
+        case ALLEGRO_KEY_O: return ImGuiKey_O;
+        case ALLEGRO_KEY_P: return ImGuiKey_P;
+        case ALLEGRO_KEY_Q: return ImGuiKey_Q;
+        case ALLEGRO_KEY_R: return ImGuiKey_R;
+        case ALLEGRO_KEY_S: return ImGuiKey_S;
+        case ALLEGRO_KEY_T: return ImGuiKey_T;
+        case ALLEGRO_KEY_U: return ImGuiKey_U;
+        case ALLEGRO_KEY_V: return ImGuiKey_V;
+        case ALLEGRO_KEY_W: return ImGuiKey_W;
+        case ALLEGRO_KEY_X: return ImGuiKey_X;
+        case ALLEGRO_KEY_Y: return ImGuiKey_Y;
+        case ALLEGRO_KEY_Z: return ImGuiKey_Z;
+        case ALLEGRO_KEY_F1: return ImGuiKey_F1;
+        case ALLEGRO_KEY_F2: return ImGuiKey_F2;
+        case ALLEGRO_KEY_F3: return ImGuiKey_F3;
+        case ALLEGRO_KEY_F4: return ImGuiKey_F4;
+        case ALLEGRO_KEY_F5: return ImGuiKey_F5;
+        case ALLEGRO_KEY_F6: return ImGuiKey_F6;
+        case ALLEGRO_KEY_F7: return ImGuiKey_F7;
+        case ALLEGRO_KEY_F8: return ImGuiKey_F8;
+        case ALLEGRO_KEY_F9: return ImGuiKey_F9;
+        case ALLEGRO_KEY_F10: return ImGuiKey_F10;
+        case ALLEGRO_KEY_F11: return ImGuiKey_F11;
+        case ALLEGRO_KEY_F12: return ImGuiKey_F12;
+        default: return ImGuiKey_None;
+    }
+}
+
+bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplAllegro5_Data* bd = IM_NEW(ImGui_ImplAllegro5_Data)();
+    io.BackendPlatformUserData = (void*)bd;
+    io.BackendPlatformName = io.BackendRendererName = "imgui_impl_allegro5";
+    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;       // We can honor GetMouseCursor() values (optional)
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    bd->LastCursor = ALLEGRO_SYSTEM_MOUSE_CURSOR_NONE;
+
+    ImGui_ImplAllegro5_SetDisplay(display);
+
+#if ALLEGRO_HAS_CLIPBOARD
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Platform_SetClipboardTextFn = ImGui_ImplAllegro5_SetClipboardText;
+    platform_io.Platform_GetClipboardTextFn = ImGui_ImplAllegro5_GetClipboardText;
+#endif
+
+    return true;
+}
+
+void ImGui_ImplAllegro5_Shutdown()
+{
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No platform backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplAllegro5_InvalidateDeviceObjects();
+    if (bd->VertexDecl)
+        al_destroy_vertex_decl(bd->VertexDecl);
+    if (bd->ClipboardTextData)
+        al_free(bd->ClipboardTextData);
+
+    io.BackendPlatformName = io.BackendRendererName = nullptr;
+    io.BackendPlatformUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+    platform_io.ClearPlatformHandlers();
+    IM_DELETE(bd);
+}
+
+void ImGui_ImplAllegro5_SetDisplay(ALLEGRO_DISPLAY* display)
+{
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    bd->Display = display;
+
+    if (bd->VertexDecl)
+    {
+        al_destroy_vertex_decl(bd->VertexDecl);
+        bd->VertexDecl = NULL;
+    }
+
+    if (bd->Display && !bd->VertexDecl)
+    {
+        // Create custom vertex declaration.
+        // Unfortunately Allegro doesn't support 32-bits packed colors so we have to convert them to 4 floats.
+        // We still use a custom declaration to use 'ALLEGRO_PRIM_TEX_COORD' instead of 'ALLEGRO_PRIM_TEX_COORD_PIXEL' else we can't do a reliable conversion.
+        ALLEGRO_VERTEX_ELEMENT elems[] =
+        {
+            { ALLEGRO_PRIM_POSITION, ALLEGRO_PRIM_FLOAT_2, offsetof(ImDrawVertAllegro, pos) },
+            { ALLEGRO_PRIM_TEX_COORD, ALLEGRO_PRIM_FLOAT_2, offsetof(ImDrawVertAllegro, uv) },
+            { ALLEGRO_PRIM_COLOR_ATTR, 0, offsetof(ImDrawVertAllegro, col) },
+            { 0, 0, 0 }
+        };
+        bd->VertexDecl = al_create_vertex_decl(elems, sizeof(ImDrawVertAllegro));
+    }
+}
+
+// ev->keyboard.modifiers seems always zero so using that...
+static void ImGui_ImplAllegro5_UpdateKeyModifiers()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    ALLEGRO_KEYBOARD_STATE keys;
+    al_get_keyboard_state(&keys);
+    io.AddKeyEvent(ImGuiMod_Ctrl, al_key_down(&keys, ALLEGRO_KEY_LCTRL) || al_key_down(&keys, ALLEGRO_KEY_RCTRL));
+    io.AddKeyEvent(ImGuiMod_Shift, al_key_down(&keys, ALLEGRO_KEY_LSHIFT) || al_key_down(&keys, ALLEGRO_KEY_RSHIFT));
+    io.AddKeyEvent(ImGuiMod_Alt, al_key_down(&keys, ALLEGRO_KEY_ALT) || al_key_down(&keys, ALLEGRO_KEY_ALTGR));
+    io.AddKeyEvent(ImGuiMod_Super, al_key_down(&keys, ALLEGRO_KEY_LWIN) || al_key_down(&keys, ALLEGRO_KEY_RWIN));
+}
+
+// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
+// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
+// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
+// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
+bool ImGui_ImplAllegro5_ProcessEvent(ALLEGRO_EVENT* ev)
+{
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplAllegro5_Init()?");
+    ImGuiIO& io = ImGui::GetIO();
+
+    switch (ev->type)
+    {
+    case ALLEGRO_EVENT_MOUSE_AXES:
+        if (ev->mouse.display == bd->Display)
+        {
+            io.AddMousePosEvent(ev->mouse.x, ev->mouse.y);
+            io.AddMouseWheelEvent(-ev->mouse.dw, ev->mouse.dz);
+        }
+        return true;
+    case ALLEGRO_EVENT_MOUSE_BUTTON_DOWN:
+    case ALLEGRO_EVENT_MOUSE_BUTTON_UP:
+        if (ev->mouse.display == bd->Display && ev->mouse.button > 0 && ev->mouse.button <= 5)
+            io.AddMouseButtonEvent(ev->mouse.button - 1, ev->type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN);
+        return true;
+    case ALLEGRO_EVENT_TOUCH_MOVE:
+        if (ev->touch.display == bd->Display)
+            io.AddMousePosEvent(ev->touch.x, ev->touch.y);
+        return true;
+    case ALLEGRO_EVENT_TOUCH_BEGIN:
+    case ALLEGRO_EVENT_TOUCH_END:
+    case ALLEGRO_EVENT_TOUCH_CANCEL:
+        if (ev->touch.display == bd->Display && ev->touch.primary)
+            io.AddMouseButtonEvent(0, ev->type == ALLEGRO_EVENT_TOUCH_BEGIN);
+        return true;
+    case ALLEGRO_EVENT_MOUSE_LEAVE_DISPLAY:
+        if (ev->mouse.display == bd->Display)
+            io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
+        return true;
+    case ALLEGRO_EVENT_KEY_CHAR:
+        if (ev->keyboard.display == bd->Display)
+            if (ev->keyboard.unichar != 0)
+                io.AddInputCharacter((unsigned int)ev->keyboard.unichar);
+        return true;
+    case ALLEGRO_EVENT_KEY_DOWN:
+    case ALLEGRO_EVENT_KEY_UP:
+        if (ev->keyboard.display == bd->Display)
+        {
+            ImGui_ImplAllegro5_UpdateKeyModifiers();
+            ImGuiKey key = ImGui_ImplAllegro5_KeyCodeToImGuiKey(ev->keyboard.keycode);
+            io.AddKeyEvent(key, (ev->type == ALLEGRO_EVENT_KEY_DOWN));
+            io.SetKeyEventNativeData(key, ev->keyboard.keycode, -1); // To support legacy indexing (<1.87 user code)
+        }
+        return true;
+    case ALLEGRO_EVENT_DISPLAY_SWITCH_OUT:
+        if (ev->display.source == bd->Display)
+            io.AddFocusEvent(false);
+        return true;
+    case ALLEGRO_EVENT_DISPLAY_SWITCH_IN:
+        if (ev->display.source == bd->Display)
+        {
+            io.AddFocusEvent(true);
+#if defined(ALLEGRO_UNSTABLE)
+            al_clear_keyboard_state(bd->Display);
+#endif
+        }
+        return true;
+    }
+    return false;
+}
+
+static void ImGui_ImplAllegro5_UpdateMouseCursor()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
+        return;
+
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
+
+    // Hide OS mouse cursor if imgui is drawing it
+    if (io.MouseDrawCursor)
+        imgui_cursor = ImGuiMouseCursor_None;
+
+    if (bd->LastCursor == imgui_cursor)
+        return;
+    bd->LastCursor = imgui_cursor;
+    if (imgui_cursor == ImGuiMouseCursor_None)
+    {
+        al_set_mouse_cursor(bd->Display, bd->MouseCursorInvisible);
+    }
+    else
+    {
+        ALLEGRO_SYSTEM_MOUSE_CURSOR cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_DEFAULT;
+        switch (imgui_cursor)
+        {
+        case ImGuiMouseCursor_TextInput:    cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_EDIT; break;
+        case ImGuiMouseCursor_ResizeAll:    cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_MOVE; break;
+        case ImGuiMouseCursor_ResizeNS:     cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_N; break;
+        case ImGuiMouseCursor_ResizeEW:     cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_E; break;
+        case ImGuiMouseCursor_ResizeNESW:   cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_NE; break;
+        case ImGuiMouseCursor_ResizeNWSE:   cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_NW; break;
+        case ImGuiMouseCursor_Wait:         cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_BUSY; break;
+        case ImGuiMouseCursor_Progress:     cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_PROGRESS; break;
+        case ImGuiMouseCursor_NotAllowed:   cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_UNAVAILABLE; break;
+        }
+        al_set_system_mouse_cursor(bd->Display, cursor_id);
+    }
+}
+
+void ImGui_ImplAllegro5_NewFrame()
+{
+    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplAllegro5_Init()?");
+
+    if (!bd->MouseCursorInvisible)
+        ImGui_ImplAllegro5_CreateDeviceObjects();
+
+    // Setup display size (every frame to accommodate for window resizing)
+    ImGuiIO& io = ImGui::GetIO();
+    int w, h;
+    w = al_get_display_width(bd->Display);
+    h = al_get_display_height(bd->Display);
+    io.DisplaySize = ImVec2((float)w, (float)h);
+
+    // Setup time step
+    double current_time = al_get_time();
+    io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f);
+    bd->Time = current_time;
+
+    // Allegro 5 doesn't receive PrintScreen under Windows
+#ifdef _WIN32
+    io.AddKeyEvent(ImGuiKey_PrintScreen, (::GetAsyncKeyState(VK_SNAPSHOT) & 0x8000) != 0);
+#endif
+
+    // Setup mouse cursor shape
+    ImGui_ImplAllegro5_UpdateMouseCursor();
+}
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_allegro5.h

@@ -0,0 +1,45 @@
+// dear imgui: Renderer + Platform Backend for Allegro 5
+// (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy ALLEGRO_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Clipboard support (from Allegro 5.1.12).
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+// Missing features or Issues:
+//  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
+//  [ ] Platform: Missing gamepad support.
+//  [ ] Renderer: Multi-viewport support (multiple windows).
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct ALLEGRO_DISPLAY;
+union ALLEGRO_EVENT;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display);
+IMGUI_IMPL_API void     ImGui_ImplAllegro5_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplAllegro5_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data);
+IMGUI_IMPL_API bool     ImGui_ImplAllegro5_ProcessEvent(ALLEGRO_EVENT* event);
+IMGUI_IMPL_API void     ImGui_ImplAllegro5_SetDisplay(ALLEGRO_DISPLAY* display);
+
+// Use if you want to reset your rendering device without losing Dear ImGui state.
+IMGUI_IMPL_API bool     ImGui_ImplAllegro5_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplAllegro5_InvalidateDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplAllegro5_UpdateTexture(ImTextureData* tex);
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_android.cpp

@@ -0,0 +1,309 @@
+// dear imgui: Platform Binding for Android native app
+// This needs to be used along with the OpenGL 3 Renderer (imgui_impl_opengl3)
+
+// Implemented features:
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy AKEYCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen.
+// Missing features or Issues:
+//  [ ] Platform: Clipboard support.
+//  [ ] Platform: Gamepad support.
+//  [ ] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: Check if this is even possible with Android.
+//  [ ] Platform: Multi-viewport support (multiple windows). Not meaningful on Android.
+// Important:
+//  - Consider using SDL or GLFW backend on Android, which will be more full-featured than this.
+//  - FIXME: On-screen keyboard currently needs to be enabled by the application (see examples/ and issue #3446)
+//  - FIXME: Unicode character inputs needs to be passed by Dear ImGui by the application (see examples/ and issue #3446)
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported).
+//  2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago) with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion.
+//  2022-01-17: Inputs: calling new io.AddMousePosEvent(), io.AddMouseButtonEvent(), io.AddMouseWheelEvent() API (1.87+).
+//  2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range.
+//  2021-03-04: Initial version.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_android.h"
+#include <time.h>
+#include <android/native_window.h>
+#include <android/input.h>
+#include <android/keycodes.h>
+#include <android/log.h>
+
+// Android data
+static double                                   g_Time = 0.0;
+static ANativeWindow*                           g_Window;
+static char                                     g_LogTag[] = "ImGuiExample";
+
+static ImGuiKey ImGui_ImplAndroid_KeyCodeToImGuiKey(int32_t key_code)
+{
+    switch (key_code)
+    {
+        case AKEYCODE_TAB:                  return ImGuiKey_Tab;
+        case AKEYCODE_DPAD_LEFT:            return ImGuiKey_LeftArrow;
+        case AKEYCODE_DPAD_RIGHT:           return ImGuiKey_RightArrow;
+        case AKEYCODE_DPAD_UP:              return ImGuiKey_UpArrow;
+        case AKEYCODE_DPAD_DOWN:            return ImGuiKey_DownArrow;
+        case AKEYCODE_PAGE_UP:              return ImGuiKey_PageUp;
+        case AKEYCODE_PAGE_DOWN:            return ImGuiKey_PageDown;
+        case AKEYCODE_MOVE_HOME:            return ImGuiKey_Home;
+        case AKEYCODE_MOVE_END:             return ImGuiKey_End;
+        case AKEYCODE_INSERT:               return ImGuiKey_Insert;
+        case AKEYCODE_FORWARD_DEL:          return ImGuiKey_Delete;
+        case AKEYCODE_DEL:                  return ImGuiKey_Backspace;
+        case AKEYCODE_SPACE:                return ImGuiKey_Space;
+        case AKEYCODE_ENTER:                return ImGuiKey_Enter;
+        case AKEYCODE_ESCAPE:               return ImGuiKey_Escape;
+        case AKEYCODE_APOSTROPHE:           return ImGuiKey_Apostrophe;
+        case AKEYCODE_COMMA:                return ImGuiKey_Comma;
+        case AKEYCODE_MINUS:                return ImGuiKey_Minus;
+        case AKEYCODE_PERIOD:               return ImGuiKey_Period;
+        case AKEYCODE_SLASH:                return ImGuiKey_Slash;
+        case AKEYCODE_SEMICOLON:            return ImGuiKey_Semicolon;
+        case AKEYCODE_EQUALS:               return ImGuiKey_Equal;
+        case AKEYCODE_LEFT_BRACKET:         return ImGuiKey_LeftBracket;
+        case AKEYCODE_BACKSLASH:            return ImGuiKey_Backslash;
+        case AKEYCODE_RIGHT_BRACKET:        return ImGuiKey_RightBracket;
+        case AKEYCODE_GRAVE:                return ImGuiKey_GraveAccent;
+        case AKEYCODE_CAPS_LOCK:            return ImGuiKey_CapsLock;
+        case AKEYCODE_SCROLL_LOCK:          return ImGuiKey_ScrollLock;
+        case AKEYCODE_NUM_LOCK:             return ImGuiKey_NumLock;
+        case AKEYCODE_SYSRQ:                return ImGuiKey_PrintScreen;
+        case AKEYCODE_BREAK:                return ImGuiKey_Pause;
+        case AKEYCODE_NUMPAD_0:             return ImGuiKey_Keypad0;
+        case AKEYCODE_NUMPAD_1:             return ImGuiKey_Keypad1;
+        case AKEYCODE_NUMPAD_2:             return ImGuiKey_Keypad2;
+        case AKEYCODE_NUMPAD_3:             return ImGuiKey_Keypad3;
+        case AKEYCODE_NUMPAD_4:             return ImGuiKey_Keypad4;
+        case AKEYCODE_NUMPAD_5:             return ImGuiKey_Keypad5;
+        case AKEYCODE_NUMPAD_6:             return ImGuiKey_Keypad6;
+        case AKEYCODE_NUMPAD_7:             return ImGuiKey_Keypad7;
+        case AKEYCODE_NUMPAD_8:             return ImGuiKey_Keypad8;
+        case AKEYCODE_NUMPAD_9:             return ImGuiKey_Keypad9;
+        case AKEYCODE_NUMPAD_DOT:           return ImGuiKey_KeypadDecimal;
+        case AKEYCODE_NUMPAD_DIVIDE:        return ImGuiKey_KeypadDivide;
+        case AKEYCODE_NUMPAD_MULTIPLY:      return ImGuiKey_KeypadMultiply;
+        case AKEYCODE_NUMPAD_SUBTRACT:      return ImGuiKey_KeypadSubtract;
+        case AKEYCODE_NUMPAD_ADD:           return ImGuiKey_KeypadAdd;
+        case AKEYCODE_NUMPAD_ENTER:         return ImGuiKey_KeypadEnter;
+        case AKEYCODE_NUMPAD_EQUALS:        return ImGuiKey_KeypadEqual;
+        case AKEYCODE_CTRL_LEFT:            return ImGuiKey_LeftCtrl;
+        case AKEYCODE_SHIFT_LEFT:           return ImGuiKey_LeftShift;
+        case AKEYCODE_ALT_LEFT:             return ImGuiKey_LeftAlt;
+        case AKEYCODE_META_LEFT:            return ImGuiKey_LeftSuper;
+        case AKEYCODE_CTRL_RIGHT:           return ImGuiKey_RightCtrl;
+        case AKEYCODE_SHIFT_RIGHT:          return ImGuiKey_RightShift;
+        case AKEYCODE_ALT_RIGHT:            return ImGuiKey_RightAlt;
+        case AKEYCODE_META_RIGHT:           return ImGuiKey_RightSuper;
+        case AKEYCODE_MENU:                 return ImGuiKey_Menu;
+        case AKEYCODE_0:                    return ImGuiKey_0;
+        case AKEYCODE_1:                    return ImGuiKey_1;
+        case AKEYCODE_2:                    return ImGuiKey_2;
+        case AKEYCODE_3:                    return ImGuiKey_3;
+        case AKEYCODE_4:                    return ImGuiKey_4;
+        case AKEYCODE_5:                    return ImGuiKey_5;
+        case AKEYCODE_6:                    return ImGuiKey_6;
+        case AKEYCODE_7:                    return ImGuiKey_7;
+        case AKEYCODE_8:                    return ImGuiKey_8;
+        case AKEYCODE_9:                    return ImGuiKey_9;
+        case AKEYCODE_A:                    return ImGuiKey_A;
+        case AKEYCODE_B:                    return ImGuiKey_B;
+        case AKEYCODE_C:                    return ImGuiKey_C;
+        case AKEYCODE_D:                    return ImGuiKey_D;
+        case AKEYCODE_E:                    return ImGuiKey_E;
+        case AKEYCODE_F:                    return ImGuiKey_F;
+        case AKEYCODE_G:                    return ImGuiKey_G;
+        case AKEYCODE_H:                    return ImGuiKey_H;
+        case AKEYCODE_I:                    return ImGuiKey_I;
+        case AKEYCODE_J:                    return ImGuiKey_J;
+        case AKEYCODE_K:                    return ImGuiKey_K;
+        case AKEYCODE_L:                    return ImGuiKey_L;
+        case AKEYCODE_M:                    return ImGuiKey_M;
+        case AKEYCODE_N:                    return ImGuiKey_N;
+        case AKEYCODE_O:                    return ImGuiKey_O;
+        case AKEYCODE_P:                    return ImGuiKey_P;
+        case AKEYCODE_Q:                    return ImGuiKey_Q;
+        case AKEYCODE_R:                    return ImGuiKey_R;
+        case AKEYCODE_S:                    return ImGuiKey_S;
+        case AKEYCODE_T:                    return ImGuiKey_T;
+        case AKEYCODE_U:                    return ImGuiKey_U;
+        case AKEYCODE_V:                    return ImGuiKey_V;
+        case AKEYCODE_W:                    return ImGuiKey_W;
+        case AKEYCODE_X:                    return ImGuiKey_X;
+        case AKEYCODE_Y:                    return ImGuiKey_Y;
+        case AKEYCODE_Z:                    return ImGuiKey_Z;
+        case AKEYCODE_F1:                   return ImGuiKey_F1;
+        case AKEYCODE_F2:                   return ImGuiKey_F2;
+        case AKEYCODE_F3:                   return ImGuiKey_F3;
+        case AKEYCODE_F4:                   return ImGuiKey_F4;
+        case AKEYCODE_F5:                   return ImGuiKey_F5;
+        case AKEYCODE_F6:                   return ImGuiKey_F6;
+        case AKEYCODE_F7:                   return ImGuiKey_F7;
+        case AKEYCODE_F8:                   return ImGuiKey_F8;
+        case AKEYCODE_F9:                   return ImGuiKey_F9;
+        case AKEYCODE_F10:                  return ImGuiKey_F10;
+        case AKEYCODE_F11:                  return ImGuiKey_F11;
+        case AKEYCODE_F12:                  return ImGuiKey_F12;
+        default:                            return ImGuiKey_None;
+    }
+}
+
+int32_t ImGui_ImplAndroid_HandleInputEvent(const AInputEvent* input_event)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    int32_t event_type = AInputEvent_getType(input_event);
+    switch (event_type)
+    {
+    case AINPUT_EVENT_TYPE_KEY:
+    {
+        int32_t event_key_code = AKeyEvent_getKeyCode(input_event);
+        int32_t event_scan_code = AKeyEvent_getScanCode(input_event);
+        int32_t event_action = AKeyEvent_getAction(input_event);
+        int32_t event_meta_state = AKeyEvent_getMetaState(input_event);
+
+        io.AddKeyEvent(ImGuiMod_Ctrl,  (event_meta_state & AMETA_CTRL_ON)  != 0);
+        io.AddKeyEvent(ImGuiMod_Shift, (event_meta_state & AMETA_SHIFT_ON) != 0);
+        io.AddKeyEvent(ImGuiMod_Alt,   (event_meta_state & AMETA_ALT_ON)   != 0);
+        io.AddKeyEvent(ImGuiMod_Super, (event_meta_state & AMETA_META_ON)  != 0);
+
+        switch (event_action)
+        {
+        // FIXME: AKEY_EVENT_ACTION_DOWN and AKEY_EVENT_ACTION_UP occur at once as soon as a touch pointer
+        // goes up from a key. We use a simple key event queue/ and process one event per key per frame in
+        // ImGui_ImplAndroid_NewFrame()...or consider using IO queue, if suitable: https://github.com/ocornut/imgui/issues/2787
+        case AKEY_EVENT_ACTION_DOWN:
+        case AKEY_EVENT_ACTION_UP:
+        {
+            ImGuiKey key = ImGui_ImplAndroid_KeyCodeToImGuiKey(event_key_code);
+            if (key != ImGuiKey_None)
+            {
+                io.AddKeyEvent(key, event_action == AKEY_EVENT_ACTION_DOWN);
+                io.SetKeyEventNativeData(key, event_key_code, event_scan_code);
+            }
+
+            break;
+        }
+        default:
+            break;
+        }
+        break;
+    }
+    case AINPUT_EVENT_TYPE_MOTION:
+    {
+        int32_t event_action = AMotionEvent_getAction(input_event);
+        int32_t event_pointer_index = (event_action & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
+        event_action &= AMOTION_EVENT_ACTION_MASK;
+
+        switch (AMotionEvent_getToolType(input_event, event_pointer_index))
+        {
+        case AMOTION_EVENT_TOOL_TYPE_MOUSE:
+            io.AddMouseSourceEvent(ImGuiMouseSource_Mouse);
+            break;
+        case AMOTION_EVENT_TOOL_TYPE_STYLUS:
+        case AMOTION_EVENT_TOOL_TYPE_ERASER:
+            io.AddMouseSourceEvent(ImGuiMouseSource_Pen);
+            break;
+        case AMOTION_EVENT_TOOL_TYPE_FINGER:
+        default:
+            io.AddMouseSourceEvent(ImGuiMouseSource_TouchScreen);
+            break;
+        }
+
+        switch (event_action)
+        {
+        case AMOTION_EVENT_ACTION_DOWN:
+        case AMOTION_EVENT_ACTION_UP:
+        {
+            // Physical mouse buttons (and probably other physical devices) also invoke the actions AMOTION_EVENT_ACTION_DOWN/_UP,
+            // but we have to process them separately to identify the actual button pressed. This is done below via
+            // AMOTION_EVENT_ACTION_BUTTON_PRESS/_RELEASE. Here, we only process "FINGER" input (and "UNKNOWN", as a fallback).
+            int tool_type = AMotionEvent_getToolType(input_event, event_pointer_index);
+            if (tool_type == AMOTION_EVENT_TOOL_TYPE_FINGER || tool_type == AMOTION_EVENT_TOOL_TYPE_UNKNOWN)
+            {
+                io.AddMousePosEvent(AMotionEvent_getX(input_event, event_pointer_index), AMotionEvent_getY(input_event, event_pointer_index));
+                io.AddMouseButtonEvent(0, event_action == AMOTION_EVENT_ACTION_DOWN);
+            }
+            break;
+        }
+        case AMOTION_EVENT_ACTION_BUTTON_PRESS:
+        case AMOTION_EVENT_ACTION_BUTTON_RELEASE:
+        {
+            int32_t button_state = AMotionEvent_getButtonState(input_event);
+            io.AddMouseButtonEvent(0, (button_state & AMOTION_EVENT_BUTTON_PRIMARY) != 0);
+            io.AddMouseButtonEvent(1, (button_state & AMOTION_EVENT_BUTTON_SECONDARY) != 0);
+            io.AddMouseButtonEvent(2, (button_state & AMOTION_EVENT_BUTTON_TERTIARY) != 0);
+            break;
+        }
+        case AMOTION_EVENT_ACTION_HOVER_MOVE: // Hovering: Tool moves while NOT pressed (such as a physical mouse)
+        case AMOTION_EVENT_ACTION_MOVE:       // Touch pointer moves while DOWN
+            io.AddMousePosEvent(AMotionEvent_getX(input_event, event_pointer_index), AMotionEvent_getY(input_event, event_pointer_index));
+            break;
+        case AMOTION_EVENT_ACTION_SCROLL:
+            io.AddMouseWheelEvent(AMotionEvent_getAxisValue(input_event, AMOTION_EVENT_AXIS_HSCROLL, event_pointer_index), AMotionEvent_getAxisValue(input_event, AMOTION_EVENT_AXIS_VSCROLL, event_pointer_index));
+            break;
+        default:
+            break;
+        }
+    }
+        return 1;
+    default:
+        break;
+    }
+
+    return 0;
+}
+
+bool ImGui_ImplAndroid_Init(ANativeWindow* window)
+{
+    IMGUI_CHECKVERSION();
+
+    g_Window = window;
+    g_Time = 0.0;
+
+    // Setup backend capabilities flags
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendPlatformName = "imgui_impl_android";
+
+    return true;
+}
+
+void ImGui_ImplAndroid_Shutdown()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendPlatformName = nullptr;
+}
+
+void ImGui_ImplAndroid_NewFrame()
+{
+    ImGuiIO& io = ImGui::GetIO();
+
+    // Setup display size (every frame to accommodate for window resizing)
+    int32_t window_width = ANativeWindow_getWidth(g_Window);
+    int32_t window_height = ANativeWindow_getHeight(g_Window);
+    int display_width = window_width;
+    int display_height = window_height;
+
+    io.DisplaySize = ImVec2((float)window_width, (float)window_height);
+    if (window_width > 0 && window_height > 0)
+        io.DisplayFramebufferScale = ImVec2((float)display_width / window_width, (float)display_height / window_height);
+
+    // Setup time step
+    struct timespec current_timespec;
+    clock_gettime(CLOCK_MONOTONIC, &current_timespec);
+    double current_time = (double)(current_timespec.tv_sec) + (current_timespec.tv_nsec / 1000000000.0);
+    io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f / 60.0f);
+    g_Time = current_time;
+}
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_android.h

@@ -0,0 +1,38 @@
+// dear imgui: Platform Binding for Android native app
+// This needs to be used along with the OpenGL 3 Renderer (imgui_impl_opengl3)
+
+// Implemented features:
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy AKEYCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen.
+// Missing features or Issues:
+//  [ ] Platform: Clipboard support.
+//  [ ] Platform: Gamepad support.
+//  [ ] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: Check if this is even possible with Android.
+//  [ ] Platform: Multi-viewport support (multiple windows). Not meaningful on Android.
+// Important:
+//  - Consider using SDL or GLFW backend on Android, which will be more full-featured than this.
+//  - FIXME: On-screen keyboard currently needs to be enabled by the application (see examples/ and issue #3446)
+//  - FIXME: Unicode character inputs needs to be passed by Dear ImGui by the application (see examples/ and issue #3446)
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct ANativeWindow;
+struct AInputEvent;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplAndroid_Init(ANativeWindow* window);
+IMGUI_IMPL_API int32_t  ImGui_ImplAndroid_HandleInputEvent(const AInputEvent* input_event);
+IMGUI_IMPL_API void     ImGui_ImplAndroid_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplAndroid_NewFrame();
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_dx10.cpp

@@ -0,0 +1,794 @@
+// dear imgui: Renderer Backend for DirectX10
+// This needs to be used along with a Platform Backend (e.g. Win32)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
+//  2025-06-11: DirectX10: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
+//  2025-05-07: DirectX10: Honor draw_data->FramebufferScale to allow for custom backends and experiment using it (consistently with other renderer backends, even though in normal condition it is not set under Windows).
+//  2025-01-06: DirectX10: Expose selected render state in ImGui_ImplDX10_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
+//  2024-10-07: DirectX10: Changed default texture sampler to Clamp instead of Repeat/Wrap.
+//  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
+//  2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
+//  2021-05-19: DirectX10: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
+//  2021-02-18: DirectX10: Change blending equation to preserve alpha in output buffer.
+//  2019-07-21: DirectX10: Backup, clear and restore Geometry Shader is any is bound when calling ImGui_ImplDX10_RenderDrawData().
+//  2019-05-29: DirectX10: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
+//  2019-04-30: DirectX10: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
+//  2018-12-03: Misc: Added #pragma comment statement to automatically link with d3dcompiler.lib when using D3DCompile().
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
+//  2018-07-13: DirectX10: Fixed unreleased resources in Init and Shutdown functions.
+//  2018-06-08: Misc: Extracted imgui_impl_dx10.cpp/.h away from the old combined DX10+Win32 example.
+//  2018-06-08: DirectX10: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
+//  2018-04-09: Misc: Fixed erroneous call to io.Fonts->ClearInputData() + ClearTexData() that was left in DX10 example but removed in 1.47 (Nov 2015) on other backends.
+//  2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplDX10_RenderDrawData() in the .h file so you can call it yourself.
+//  2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
+//  2016-05-07: DirectX10: Disabling depth-write.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_dx10.h"
+
+// DirectX
+#include <stdio.h>
+#include <d3d10_1.h>
+#include <d3d10.h>
+#include <d3dcompiler.h>
+#ifdef _MSC_VER
+#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast                            // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
+#endif
+
+// DirectX10 data
+struct ImGui_ImplDX10_Texture
+{
+    ID3D10Texture2D*            pTexture;
+    ID3D10ShaderResourceView*   pTextureView;
+};
+
+struct ImGui_ImplDX10_Data
+{
+    ID3D10Device*               pd3dDevice;
+    IDXGIFactory*               pFactory;
+    ID3D10Buffer*               pVB;
+    ID3D10Buffer*               pIB;
+    ID3D10VertexShader*         pVertexShader;
+    ID3D10InputLayout*          pInputLayout;
+    ID3D10Buffer*               pVertexConstantBuffer;
+    ID3D10PixelShader*          pPixelShader;
+    ID3D10SamplerState*         pTexSamplerLinear;
+    ID3D10RasterizerState*      pRasterizerState;
+    ID3D10BlendState*           pBlendState;
+    ID3D10DepthStencilState*    pDepthStencilState;
+    int                         VertexBufferSize;
+    int                         IndexBufferSize;
+
+    ImGui_ImplDX10_Data()       { memset((void*)this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; }
+};
+
+struct VERTEX_CONSTANT_BUFFER_DX10
+{
+    float   mvp[4][4];
+};
+
+// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+static ImGui_ImplDX10_Data* ImGui_ImplDX10_GetBackendData()
+{
+    return ImGui::GetCurrentContext() ? (ImGui_ImplDX10_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
+}
+
+// Forward Declarations
+static void ImGui_ImplDX10_InitMultiViewportSupport();
+static void ImGui_ImplDX10_ShutdownMultiViewportSupport();
+
+// Functions
+static void ImGui_ImplDX10_SetupRenderState(ImDrawData* draw_data, ID3D10Device* device)
+{
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+
+    // Setup viewport
+    D3D10_VIEWPORT vp = {};
+    vp.Width = (UINT)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
+    vp.Height = (UINT)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
+    vp.MinDepth = 0.0f;
+    vp.MaxDepth = 1.0f;
+    vp.TopLeftX = vp.TopLeftY = 0;
+    device->RSSetViewports(1, &vp);
+
+    // Setup orthographic projection matrix into our constant buffer
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
+    void* mapped_resource;
+    if (bd->pVertexConstantBuffer->Map(D3D10_MAP_WRITE_DISCARD, 0, &mapped_resource) == S_OK)
+    {
+        VERTEX_CONSTANT_BUFFER_DX10* constant_buffer = (VERTEX_CONSTANT_BUFFER_DX10*)mapped_resource;
+        float L = draw_data->DisplayPos.x;
+        float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
+        float T = draw_data->DisplayPos.y;
+        float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
+        float mvp[4][4] =
+        {
+            { 2.0f/(R-L),   0.0f,           0.0f,       0.0f },
+            { 0.0f,         2.0f/(T-B),     0.0f,       0.0f },
+            { 0.0f,         0.0f,           0.5f,       0.0f },
+            { (R+L)/(L-R),  (T+B)/(B-T),    0.5f,       1.0f },
+        };
+        memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
+        bd->pVertexConstantBuffer->Unmap();
+    }
+
+    // Setup shader and vertex buffers
+    unsigned int stride = sizeof(ImDrawVert);
+    unsigned int offset = 0;
+    device->IASetInputLayout(bd->pInputLayout);
+    device->IASetVertexBuffers(0, 1, &bd->pVB, &stride, &offset);
+    device->IASetIndexBuffer(bd->pIB, sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT, 0);
+    device->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+    device->VSSetShader(bd->pVertexShader);
+    device->VSSetConstantBuffers(0, 1, &bd->pVertexConstantBuffer);
+    device->PSSetShader(bd->pPixelShader);
+    device->PSSetSamplers(0, 1, &bd->pTexSamplerLinear);
+    device->GSSetShader(nullptr);
+
+    // Setup render state
+    const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
+    device->OMSetBlendState(bd->pBlendState, blend_factor, 0xffffffff);
+    device->OMSetDepthStencilState(bd->pDepthStencilState, 0);
+    device->RSSetState(bd->pRasterizerState);
+}
+
+// Render function
+void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
+{
+    // Avoid rendering when minimized
+    if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
+        return;
+
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+    ID3D10Device* device = bd->pd3dDevice;
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplDX10_UpdateTexture(tex);
+
+    // Create and grow vertex/index buffers if needed
+    if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount)
+    {
+        if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; }
+        bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
+        D3D10_BUFFER_DESC desc = {};
+        desc.Usage = D3D10_USAGE_DYNAMIC;
+        desc.ByteWidth = bd->VertexBufferSize * sizeof(ImDrawVert);
+        desc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
+        desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
+        desc.MiscFlags = 0;
+        if (device->CreateBuffer(&desc, nullptr, &bd->pVB) < 0)
+            return;
+    }
+
+    if (!bd->pIB || bd->IndexBufferSize < draw_data->TotalIdxCount)
+    {
+        if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; }
+        bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
+        D3D10_BUFFER_DESC desc = {};
+        desc.Usage = D3D10_USAGE_DYNAMIC;
+        desc.ByteWidth = bd->IndexBufferSize * sizeof(ImDrawIdx);
+        desc.BindFlags = D3D10_BIND_INDEX_BUFFER;
+        desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
+        if (device->CreateBuffer(&desc, nullptr, &bd->pIB) < 0)
+            return;
+    }
+
+    // Copy and convert all vertices into a single contiguous buffer
+    ImDrawVert* vtx_dst = nullptr;
+    ImDrawIdx* idx_dst = nullptr;
+    bd->pVB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&vtx_dst);
+    bd->pIB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&idx_dst);
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        memcpy(vtx_dst, draw_list->VtxBuffer.Data, draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
+        memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
+        vtx_dst += draw_list->VtxBuffer.Size;
+        idx_dst += draw_list->IdxBuffer.Size;
+    }
+    bd->pVB->Unmap();
+    bd->pIB->Unmap();
+
+    // Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
+    struct BACKUP_DX10_STATE
+    {
+        UINT                        ScissorRectsCount, ViewportsCount;
+        D3D10_RECT                  ScissorRects[D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
+        D3D10_VIEWPORT              Viewports[D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
+        ID3D10RasterizerState*      RS;
+        ID3D10BlendState*           BlendState;
+        FLOAT                       BlendFactor[4];
+        UINT                        SampleMask;
+        UINT                        StencilRef;
+        ID3D10DepthStencilState*    DepthStencilState;
+        ID3D10ShaderResourceView*   PSShaderResource;
+        ID3D10SamplerState*         PSSampler;
+        ID3D10PixelShader*          PS;
+        ID3D10VertexShader*         VS;
+        ID3D10GeometryShader*       GS;
+        D3D10_PRIMITIVE_TOPOLOGY    PrimitiveTopology;
+        ID3D10Buffer*               IndexBuffer, *VertexBuffer, *VSConstantBuffer;
+        UINT                        IndexBufferOffset, VertexBufferStride, VertexBufferOffset;
+        DXGI_FORMAT                 IndexBufferFormat;
+        ID3D10InputLayout*          InputLayout;
+    };
+    BACKUP_DX10_STATE old = {};
+    old.ScissorRectsCount = old.ViewportsCount = D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
+    device->RSGetScissorRects(&old.ScissorRectsCount, old.ScissorRects);
+    device->RSGetViewports(&old.ViewportsCount, old.Viewports);
+    device->RSGetState(&old.RS);
+    device->OMGetBlendState(&old.BlendState, old.BlendFactor, &old.SampleMask);
+    device->OMGetDepthStencilState(&old.DepthStencilState, &old.StencilRef);
+    device->PSGetShaderResources(0, 1, &old.PSShaderResource);
+    device->PSGetSamplers(0, 1, &old.PSSampler);
+    device->PSGetShader(&old.PS);
+    device->VSGetShader(&old.VS);
+    device->VSGetConstantBuffers(0, 1, &old.VSConstantBuffer);
+    device->GSGetShader(&old.GS);
+    device->IAGetPrimitiveTopology(&old.PrimitiveTopology);
+    device->IAGetIndexBuffer(&old.IndexBuffer, &old.IndexBufferFormat, &old.IndexBufferOffset);
+    device->IAGetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset);
+    device->IAGetInputLayout(&old.InputLayout);
+
+    // Setup desired DX state
+    ImGui_ImplDX10_SetupRenderState(draw_data, device);
+    // Setup render state structure (for callbacks and custom texture bindings)
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    ImGui_ImplDX10_RenderState render_state;
+    render_state.Device = bd->pd3dDevice;
+    render_state.SamplerDefault = bd->pTexSamplerLinear;
+    render_state.VertexConstantBuffer = bd->pVertexConstantBuffer;
+    platform_io.Renderer_RenderState = &render_state;
+
+    // Render command lists
+    // (Because we merged all buffers into a single one, we maintain our own offset into them)
+    int global_vtx_offset = 0;
+    int global_idx_offset = 0;
+    ImVec2 clip_off = draw_data->DisplayPos;
+    ImVec2 clip_scale = draw_data->FramebufferScale;
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback != nullptr)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplDX10_SetupRenderState(draw_data, device);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
+                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                // Apply scissor/clipping rectangle
+                const D3D10_RECT r = { (LONG)clip_min.x, (LONG)clip_min.y, (LONG)clip_max.x, (LONG)clip_max.y };
+                device->RSSetScissorRects(1, &r);
+
+                // Bind texture, Draw
+                ID3D10ShaderResourceView* texture_srv = (ID3D10ShaderResourceView*)pcmd->GetTexID();
+                device->PSSetShaderResources(0, 1, &texture_srv);
+                device->DrawIndexed(pcmd->ElemCount, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset);
+            }
+        }
+        global_idx_offset += draw_list->IdxBuffer.Size;
+        global_vtx_offset += draw_list->VtxBuffer.Size;
+    }
+    platform_io.Renderer_RenderState = nullptr;
+
+    // Restore modified DX state
+    device->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
+    device->RSSetViewports(old.ViewportsCount, old.Viewports);
+    device->RSSetState(old.RS); if (old.RS) old.RS->Release();
+    device->OMSetBlendState(old.BlendState, old.BlendFactor, old.SampleMask); if (old.BlendState) old.BlendState->Release();
+    device->OMSetDepthStencilState(old.DepthStencilState, old.StencilRef); if (old.DepthStencilState) old.DepthStencilState->Release();
+    device->PSSetShaderResources(0, 1, &old.PSShaderResource); if (old.PSShaderResource) old.PSShaderResource->Release();
+    device->PSSetSamplers(0, 1, &old.PSSampler); if (old.PSSampler) old.PSSampler->Release();
+    device->PSSetShader(old.PS); if (old.PS) old.PS->Release();
+    device->VSSetShader(old.VS); if (old.VS) old.VS->Release();
+    device->GSSetShader(old.GS); if (old.GS) old.GS->Release();
+    device->VSSetConstantBuffers(0, 1, &old.VSConstantBuffer); if (old.VSConstantBuffer) old.VSConstantBuffer->Release();
+    device->IASetPrimitiveTopology(old.PrimitiveTopology);
+    device->IASetIndexBuffer(old.IndexBuffer, old.IndexBufferFormat, old.IndexBufferOffset); if (old.IndexBuffer) old.IndexBuffer->Release();
+    device->IASetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset); if (old.VertexBuffer) old.VertexBuffer->Release();
+    device->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
+}
+
+static void ImGui_ImplDX10_DestroyTexture(ImTextureData* tex)
+{
+    if (ImGui_ImplDX10_Texture* backend_tex = (ImGui_ImplDX10_Texture*)tex->BackendUserData)
+    {
+        IM_ASSERT(backend_tex->pTextureView == (ID3D10ShaderResourceView*)(intptr_t)tex->TexID);
+        backend_tex->pTextureView->Release();
+        backend_tex->pTexture->Release();
+        IM_DELETE(backend_tex);
+
+        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->BackendUserData = nullptr;
+    }
+    tex->SetStatus(ImTextureStatus_Destroyed);
+}
+
+void ImGui_ImplDX10_UpdateTexture(ImTextureData* tex)
+{
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+        unsigned int* pixels = (unsigned int*)tex->GetPixels();
+        ImGui_ImplDX10_Texture* backend_tex = IM_NEW(ImGui_ImplDX10_Texture)();
+
+        // Create texture
+        D3D10_TEXTURE2D_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.Width = (UINT)tex->Width;
+        desc.Height = (UINT)tex->Height;
+        desc.MipLevels = 1;
+        desc.ArraySize = 1;
+        desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        desc.SampleDesc.Count = 1;
+        desc.Usage = D3D10_USAGE_DEFAULT;
+        desc.BindFlags = D3D10_BIND_SHADER_RESOURCE;
+        desc.CPUAccessFlags = 0;
+
+        D3D10_SUBRESOURCE_DATA subResource;
+        subResource.pSysMem = pixels;
+        subResource.SysMemPitch = desc.Width * 4;
+        subResource.SysMemSlicePitch = 0;
+        bd->pd3dDevice->CreateTexture2D(&desc, &subResource, &backend_tex->pTexture);
+        IM_ASSERT(backend_tex->pTexture != nullptr && "Backend failed to create texture!");
+
+        // Create texture view
+        D3D10_SHADER_RESOURCE_VIEW_DESC srv_desc;
+        ZeroMemory(&srv_desc, sizeof(srv_desc));
+        srv_desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        srv_desc.ViewDimension = D3D10_SRV_DIMENSION_TEXTURE2D;
+        srv_desc.Texture2D.MipLevels = desc.MipLevels;
+        srv_desc.Texture2D.MostDetailedMip = 0;
+        bd->pd3dDevice->CreateShaderResourceView(backend_tex->pTexture, &srv_desc, &backend_tex->pTextureView);
+        IM_ASSERT(backend_tex->pTextureView != nullptr && "Backend failed to create texture!");
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)backend_tex->pTextureView);
+        tex->SetStatus(ImTextureStatus_OK);
+        tex->BackendUserData = backend_tex;
+    }
+    else if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Update selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
+        ImGui_ImplDX10_Texture* backend_tex = (ImGui_ImplDX10_Texture*)tex->BackendUserData;
+        IM_ASSERT(backend_tex->pTextureView == (ID3D10ShaderResourceView*)(intptr_t)tex->TexID);
+        for (ImTextureRect& r : tex->Updates)
+        {
+            D3D10_BOX box = { (UINT)r.x, (UINT)r.y, (UINT)0, (UINT)(r.x + r.w), (UINT)(r.y + r.h), (UINT)1 };
+            bd->pd3dDevice->UpdateSubresource(backend_tex->pTexture, 0, &box, tex->GetPixelsAt(r.x, r.y), (UINT)tex->GetPitch(), 0);
+        }
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
+        ImGui_ImplDX10_DestroyTexture(tex);
+}
+
+bool    ImGui_ImplDX10_CreateDeviceObjects()
+{
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+    if (!bd->pd3dDevice)
+        return false;
+    ImGui_ImplDX10_InvalidateDeviceObjects();
+
+    // By using D3DCompile() from <d3dcompiler.h> / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
+    // If you would like to use this DX10 sample code but remove this dependency you can:
+    //  1) compile once, save the compiled shader blobs into a file or source code and pass them to CreateVertexShader()/CreatePixelShader() [preferred solution]
+    //  2) use code to detect any version of the DLL and grab a pointer to D3DCompile from the DLL.
+    // See https://github.com/ocornut/imgui/pull/638 for sources and details.
+
+    // Create the vertex shader
+    {
+        static const char* vertexShader =
+            "cbuffer vertexBuffer : register(b0) \
+            {\
+              float4x4 ProjectionMatrix; \
+            };\
+            struct VS_INPUT\
+            {\
+              float2 pos : POSITION;\
+              float4 col : COLOR0;\
+              float2 uv  : TEXCOORD0;\
+            };\
+            \
+            struct PS_INPUT\
+            {\
+              float4 pos : SV_POSITION;\
+              float4 col : COLOR0;\
+              float2 uv  : TEXCOORD0;\
+            };\
+            \
+            PS_INPUT main(VS_INPUT input)\
+            {\
+              PS_INPUT output;\
+              output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\
+              output.col = input.col;\
+              output.uv  = input.uv;\
+              return output;\
+            }";
+
+        ID3DBlob* vertexShaderBlob;
+        if (FAILED(D3DCompile(vertexShader, strlen(vertexShader), nullptr, nullptr, nullptr, "main", "vs_4_0", 0, 0, &vertexShaderBlob, nullptr)))
+            return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
+        if (bd->pd3dDevice->CreateVertexShader(vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize(), &bd->pVertexShader) != S_OK)
+        {
+            vertexShaderBlob->Release();
+            return false;
+        }
+
+        // Create the input layout
+        D3D10_INPUT_ELEMENT_DESC local_layout[] =
+        {
+            { "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT,   0, (UINT)offsetof(ImDrawVert, pos), D3D10_INPUT_PER_VERTEX_DATA, 0 },
+            { "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT,   0, (UINT)offsetof(ImDrawVert, uv),  D3D10_INPUT_PER_VERTEX_DATA, 0 },
+            { "COLOR",    0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)offsetof(ImDrawVert, col), D3D10_INPUT_PER_VERTEX_DATA, 0 },
+        };
+        if (bd->pd3dDevice->CreateInputLayout(local_layout, 3, vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize(), &bd->pInputLayout) != S_OK)
+        {
+            vertexShaderBlob->Release();
+            return false;
+        }
+        vertexShaderBlob->Release();
+
+        // Create the constant buffer
+        {
+            D3D10_BUFFER_DESC desc = {};
+            desc.ByteWidth = sizeof(VERTEX_CONSTANT_BUFFER_DX10);
+            desc.Usage = D3D10_USAGE_DYNAMIC;
+            desc.BindFlags = D3D10_BIND_CONSTANT_BUFFER;
+            desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
+            desc.MiscFlags = 0;
+            bd->pd3dDevice->CreateBuffer(&desc, nullptr, &bd->pVertexConstantBuffer);
+        }
+    }
+
+    // Create the pixel shader
+    {
+        static const char* pixelShader =
+            "struct PS_INPUT\
+            {\
+            float4 pos : SV_POSITION;\
+            float4 col : COLOR0;\
+            float2 uv  : TEXCOORD0;\
+            };\
+            sampler sampler0;\
+            Texture2D texture0;\
+            \
+            float4 main(PS_INPUT input) : SV_Target\
+            {\
+            float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \
+            return out_col; \
+            }";
+
+        ID3DBlob* pixelShaderBlob;
+        if (FAILED(D3DCompile(pixelShader, strlen(pixelShader), nullptr, nullptr, nullptr, "main", "ps_4_0", 0, 0, &pixelShaderBlob, nullptr)))
+            return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
+        if (bd->pd3dDevice->CreatePixelShader(pixelShaderBlob->GetBufferPointer(), pixelShaderBlob->GetBufferSize(), &bd->pPixelShader) != S_OK)
+        {
+            pixelShaderBlob->Release();
+            return false;
+        }
+        pixelShaderBlob->Release();
+    }
+
+    // Create the blending setup
+    {
+        D3D10_BLEND_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.AlphaToCoverageEnable = false;
+        desc.BlendEnable[0] = true;
+        desc.SrcBlend = D3D10_BLEND_SRC_ALPHA;
+        desc.DestBlend = D3D10_BLEND_INV_SRC_ALPHA;
+        desc.BlendOp = D3D10_BLEND_OP_ADD;
+        desc.SrcBlendAlpha = D3D10_BLEND_ONE;
+        desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
+        desc.BlendOpAlpha = D3D10_BLEND_OP_ADD;
+        desc.RenderTargetWriteMask[0] = D3D10_COLOR_WRITE_ENABLE_ALL;
+        bd->pd3dDevice->CreateBlendState(&desc, &bd->pBlendState);
+    }
+
+    // Create the rasterizer state
+    {
+        D3D10_RASTERIZER_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.FillMode = D3D10_FILL_SOLID;
+        desc.CullMode = D3D10_CULL_NONE;
+        desc.ScissorEnable = true;
+        desc.DepthClipEnable = true;
+        bd->pd3dDevice->CreateRasterizerState(&desc, &bd->pRasterizerState);
+    }
+
+    // Create depth-stencil State
+    {
+        D3D10_DEPTH_STENCIL_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.DepthEnable = false;
+        desc.DepthWriteMask = D3D10_DEPTH_WRITE_MASK_ALL;
+        desc.DepthFunc = D3D10_COMPARISON_ALWAYS;
+        desc.StencilEnable = false;
+        desc.FrontFace.StencilFailOp = desc.FrontFace.StencilDepthFailOp = desc.FrontFace.StencilPassOp = D3D10_STENCIL_OP_KEEP;
+        desc.FrontFace.StencilFunc = D3D10_COMPARISON_ALWAYS;
+        desc.BackFace = desc.FrontFace;
+        bd->pd3dDevice->CreateDepthStencilState(&desc, &bd->pDepthStencilState);
+    }
+
+    // Create texture sampler
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+    {
+        D3D10_SAMPLER_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.Filter = D3D10_FILTER_MIN_MAG_MIP_LINEAR;
+        desc.AddressU = D3D10_TEXTURE_ADDRESS_CLAMP;
+        desc.AddressV = D3D10_TEXTURE_ADDRESS_CLAMP;
+        desc.AddressW = D3D10_TEXTURE_ADDRESS_CLAMP;
+        desc.MipLODBias = 0.f;
+        desc.ComparisonFunc = D3D10_COMPARISON_ALWAYS;
+        desc.MinLOD = 0.f;
+        desc.MaxLOD = 0.f;
+        bd->pd3dDevice->CreateSamplerState(&desc, &bd->pTexSamplerLinear);
+    }
+
+    return true;
+}
+
+void    ImGui_ImplDX10_InvalidateDeviceObjects()
+{
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+    if (!bd->pd3dDevice)
+        return;
+
+    // Destroy all textures
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+            ImGui_ImplDX10_DestroyTexture(tex);
+    if (bd->pTexSamplerLinear)      { bd->pTexSamplerLinear->Release(); bd->pTexSamplerLinear = nullptr; }
+    if (bd->pIB)                    { bd->pIB->Release(); bd->pIB = nullptr; }
+    if (bd->pVB)                    { bd->pVB->Release(); bd->pVB = nullptr; }
+    if (bd->pBlendState)            { bd->pBlendState->Release(); bd->pBlendState = nullptr; }
+    if (bd->pDepthStencilState)     { bd->pDepthStencilState->Release(); bd->pDepthStencilState = nullptr; }
+    if (bd->pRasterizerState)       { bd->pRasterizerState->Release(); bd->pRasterizerState = nullptr; }
+    if (bd->pPixelShader)           { bd->pPixelShader->Release(); bd->pPixelShader = nullptr; }
+    if (bd->pVertexConstantBuffer)  { bd->pVertexConstantBuffer->Release(); bd->pVertexConstantBuffer = nullptr; }
+    if (bd->pInputLayout)           { bd->pInputLayout->Release(); bd->pInputLayout = nullptr; }
+    if (bd->pVertexShader)          { bd->pVertexShader->Release(); bd->pVertexShader = nullptr; }
+}
+
+bool    ImGui_ImplDX10_Init(ID3D10Device* device)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplDX10_Data* bd = IM_NEW(ImGui_ImplDX10_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_dx10";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+
+    // Get factory from device
+    IDXGIDevice* pDXGIDevice = nullptr;
+    IDXGIAdapter* pDXGIAdapter = nullptr;
+    IDXGIFactory* pFactory = nullptr;
+    if (device->QueryInterface(IID_PPV_ARGS(&pDXGIDevice)) == S_OK)
+        if (pDXGIDevice->GetParent(IID_PPV_ARGS(&pDXGIAdapter)) == S_OK)
+            if (pDXGIAdapter->GetParent(IID_PPV_ARGS(&pFactory)) == S_OK)
+            {
+                bd->pd3dDevice = device;
+                bd->pFactory = pFactory;
+            }
+    if (pDXGIDevice) pDXGIDevice->Release();
+    if (pDXGIAdapter) pDXGIAdapter->Release();
+    bd->pd3dDevice->AddRef();
+
+    ImGui_ImplDX10_InitMultiViewportSupport();
+
+    return true;
+}
+
+void ImGui_ImplDX10_Shutdown()
+{
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplDX10_ShutdownMultiViewportSupport();
+    ImGui_ImplDX10_InvalidateDeviceObjects();
+    if (bd->pFactory) { bd->pFactory->Release(); }
+    if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
+void ImGui_ImplDX10_NewFrame()
+{
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX10_Init()?");
+
+    if (!bd->pVertexShader)
+        if (!ImGui_ImplDX10_CreateDeviceObjects())
+            IM_ASSERT(0 && "ImGui_ImplDX10_CreateDeviceObjects() failed!");
+}
+
+//--------------------------------------------------------------------------------------------------------
+// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
+// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
+// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
+//--------------------------------------------------------------------------------------------------------
+
+// Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
+struct ImGui_ImplDX10_ViewportData
+{
+    IDXGISwapChain*         SwapChain;
+    ID3D10RenderTargetView* RTView;
+
+    ImGui_ImplDX10_ViewportData()   { SwapChain = nullptr; RTView = nullptr; }
+    ~ImGui_ImplDX10_ViewportData()  { IM_ASSERT(SwapChain == nullptr && RTView == nullptr); }
+};
+
+static void ImGui_ImplDX10_CreateWindow(ImGuiViewport* viewport)
+{
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+    ImGui_ImplDX10_ViewportData* vd = IM_NEW(ImGui_ImplDX10_ViewportData)();
+    viewport->RendererUserData = vd;
+
+    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL's WindowID).
+    // Some backends will leave PlatformHandleRaw == 0, in which case we assume PlatformHandle will contain the HWND.
+    HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
+    IM_ASSERT(hwnd != 0);
+
+    // Create swap chain
+    DXGI_SWAP_CHAIN_DESC sd;
+    ZeroMemory(&sd, sizeof(sd));
+    sd.BufferDesc.Width = (UINT)viewport->Size.x;
+    sd.BufferDesc.Height = (UINT)viewport->Size.y;
+    sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+    sd.SampleDesc.Count = 1;
+    sd.SampleDesc.Quality = 0;
+    sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+    sd.BufferCount = 1;
+    sd.OutputWindow = hwnd;
+    sd.Windowed = TRUE;
+    sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
+    sd.Flags = 0;
+
+    IM_ASSERT(vd->SwapChain == nullptr && vd->RTView == nullptr);
+    bd->pFactory->CreateSwapChain(bd->pd3dDevice, &sd, &vd->SwapChain);
+    bd->pFactory->MakeWindowAssociation(hwnd, DXGI_MWA_NO_ALT_ENTER | DXGI_MWA_NO_WINDOW_CHANGES); // Disable e.g. Alt+Enter
+
+    // Create the render target
+    if (vd->SwapChain)
+    {
+        ID3D10Texture2D* pBackBuffer;
+        vd->SwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
+        bd->pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, &vd->RTView);
+        pBackBuffer->Release();
+    }
+}
+
+static void ImGui_ImplDX10_DestroyWindow(ImGuiViewport* viewport)
+{
+    // The main viewport (owned by the application) will always have RendererUserData == 0 here since we didn't create the data for it.
+    if (ImGui_ImplDX10_ViewportData* vd = (ImGui_ImplDX10_ViewportData*)viewport->RendererUserData)
+    {
+        if (vd->SwapChain)
+            vd->SwapChain->Release();
+        vd->SwapChain = nullptr;
+        if (vd->RTView)
+            vd->RTView->Release();
+        vd->RTView = nullptr;
+        IM_DELETE(vd);
+    }
+    viewport->RendererUserData = nullptr;
+}
+
+static void ImGui_ImplDX10_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
+{
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+    ImGui_ImplDX10_ViewportData* vd = (ImGui_ImplDX10_ViewportData*)viewport->RendererUserData;
+    if (vd->RTView)
+    {
+        vd->RTView->Release();
+        vd->RTView = nullptr;
+    }
+    if (vd->SwapChain)
+    {
+        ID3D10Texture2D* pBackBuffer = nullptr;
+        vd->SwapChain->ResizeBuffers(0, (UINT)size.x, (UINT)size.y, DXGI_FORMAT_UNKNOWN, 0);
+        vd->SwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
+        if (pBackBuffer == nullptr) { fprintf(stderr, "ImGui_ImplDX10_SetWindowSize() failed creating buffers.\n"); return; }
+        bd->pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, &vd->RTView);
+        pBackBuffer->Release();
+    }
+}
+
+static void ImGui_ImplDX10_RenderViewport(ImGuiViewport* viewport, void*)
+{
+    ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
+    ImGui_ImplDX10_ViewportData* vd = (ImGui_ImplDX10_ViewportData*)viewport->RendererUserData;
+    ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
+    bd->pd3dDevice->OMSetRenderTargets(1, &vd->RTView, nullptr);
+    if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
+        bd->pd3dDevice->ClearRenderTargetView(vd->RTView, (float*)&clear_color);
+    ImGui_ImplDX10_RenderDrawData(viewport->DrawData);
+}
+
+static void ImGui_ImplDX10_SwapBuffers(ImGuiViewport* viewport, void*)
+{
+    ImGui_ImplDX10_ViewportData* vd = (ImGui_ImplDX10_ViewportData*)viewport->RendererUserData;
+    if (vd->SwapChain)
+        vd->SwapChain->Present(0, 0); // Present without vsync
+}
+
+void ImGui_ImplDX10_InitMultiViewportSupport()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_CreateWindow = ImGui_ImplDX10_CreateWindow;
+    platform_io.Renderer_DestroyWindow = ImGui_ImplDX10_DestroyWindow;
+    platform_io.Renderer_SetWindowSize = ImGui_ImplDX10_SetWindowSize;
+    platform_io.Renderer_RenderWindow = ImGui_ImplDX10_RenderViewport;
+    platform_io.Renderer_SwapBuffers = ImGui_ImplDX10_SwapBuffers;
+}
+
+void ImGui_ImplDX10_ShutdownMultiViewportSupport()
+{
+    ImGui::DestroyPlatformWindows();
+}
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_dx10.h

@@ -0,0 +1,49 @@
+// dear imgui: Renderer Backend for DirectX10
+// This needs to be used along with a Platform Backend (e.g. Win32)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct ID3D10Device;
+struct ID3D10SamplerState;
+struct ID3D10Buffer;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplDX10_Init(ID3D10Device* device);
+IMGUI_IMPL_API void     ImGui_ImplDX10_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplDX10_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data);
+
+// Use if you want to reset your rendering device without losing Dear ImGui state.
+IMGUI_IMPL_API bool     ImGui_ImplDX10_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplDX10_InvalidateDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplDX10_UpdateTexture(ImTextureData* tex);
+
+// [BETA] Selected render state data shared with callbacks.
+// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplDX10_RenderDrawData() call.
+// (Please open an issue if you feel you need access to more data)
+struct ImGui_ImplDX10_RenderState
+{
+    ID3D10Device*           Device;
+    ID3D10SamplerState*     SamplerDefault;
+    ID3D10Buffer*           VertexConstantBuffer;
+};
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_dx11.cpp

@@ -0,0 +1,837 @@
+// dear imgui: Renderer Backend for DirectX11
+// This needs to be used along with a Platform Backend (e.g. Win32)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
+//  2025-06-11: DirectX11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
+//  2025-05-07: DirectX11: Honor draw_data->FramebufferScale to allow for custom backends and experiment using it (consistently with other renderer backends, even though in normal condition it is not set under Windows).
+//  2025-02-24: [Docking] Added undocumented ImGui_ImplDX11_SetSwapChainDescs() to configure swap chain creation for secondary viewports.
+//  2025-01-06: DirectX11: Expose VertexConstantBuffer in ImGui_ImplDX11_RenderState. Reset projection matrix in ImDrawCallback_ResetRenderState handler.
+//  2024-10-07: DirectX11: Changed default texture sampler to Clamp instead of Repeat/Wrap.
+//  2024-10-07: DirectX11: Expose selected render state in ImGui_ImplDX11_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
+//  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
+//  2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
+//  2021-05-19: DirectX11: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
+//  2021-02-18: DirectX11: Change blending equation to preserve alpha in output buffer.
+//  2019-08-01: DirectX11: Fixed code querying the Geometry Shader state (would generally error with Debug layer enabled).
+//  2019-07-21: DirectX11: Backup, clear and restore Geometry Shader is any is bound when calling ImGui_ImplDX11_RenderDrawData. Clearing Hull/Domain/Compute shaders without backup/restore.
+//  2019-05-29: DirectX11: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
+//  2019-04-30: DirectX11: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
+//  2018-12-03: Misc: Added #pragma comment statement to automatically link with d3dcompiler.lib when using D3DCompile().
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
+//  2018-08-01: DirectX11: Querying for IDXGIFactory instead of IDXGIFactory1 to increase compatibility.
+//  2018-07-13: DirectX11: Fixed unreleased resources in Init and Shutdown functions.
+//  2018-06-08: Misc: Extracted imgui_impl_dx11.cpp/.h away from the old combined DX11+Win32 example.
+//  2018-06-08: DirectX11: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
+//  2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplDX11_RenderDrawData() in the .h file so you can call it yourself.
+//  2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
+//  2016-05-07: DirectX11: Disabling depth-write.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_dx11.h"
+
+// DirectX
+#include <stdio.h>
+#include <d3d11.h>
+#include <d3dcompiler.h>
+#ifdef _MSC_VER
+#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast                            // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
+#endif
+
+// DirectX11 data
+struct ImGui_ImplDX11_Texture
+{
+    ID3D11Texture2D*            pTexture;
+    ID3D11ShaderResourceView*   pTextureView;
+};
+
+struct ImGui_ImplDX11_Data
+{
+    ID3D11Device*               pd3dDevice;
+    ID3D11DeviceContext*        pd3dDeviceContext;
+    IDXGIFactory*               pFactory;
+    ID3D11Buffer*               pVB;
+    ID3D11Buffer*               pIB;
+    ID3D11VertexShader*         pVertexShader;
+    ID3D11InputLayout*          pInputLayout;
+    ID3D11Buffer*               pVertexConstantBuffer;
+    ID3D11PixelShader*          pPixelShader;
+    ID3D11SamplerState*         pTexSamplerLinear;
+    ID3D11RasterizerState*      pRasterizerState;
+    ID3D11BlendState*           pBlendState;
+    ID3D11DepthStencilState*    pDepthStencilState;
+    int                         VertexBufferSize;
+    int                         IndexBufferSize;
+    ImVector<DXGI_SWAP_CHAIN_DESC> SwapChainDescsForViewports;
+
+    ImGui_ImplDX11_Data()       { memset((void*)this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; }
+};
+
+struct VERTEX_CONSTANT_BUFFER_DX11
+{
+    float   mvp[4][4];
+};
+
+// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+static ImGui_ImplDX11_Data* ImGui_ImplDX11_GetBackendData()
+{
+    return ImGui::GetCurrentContext() ? (ImGui_ImplDX11_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
+}
+
+// Forward Declarations
+static void ImGui_ImplDX11_InitMultiViewportSupport();
+static void ImGui_ImplDX11_ShutdownMultiViewportSupport();
+
+// Functions
+static void ImGui_ImplDX11_SetupRenderState(const ImDrawData* draw_data, ID3D11DeviceContext* device_ctx)
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+
+    // Setup viewport
+    D3D11_VIEWPORT vp = {};
+    vp.Width = draw_data->DisplaySize.x * draw_data->FramebufferScale.x;
+    vp.Height = draw_data->DisplaySize.y * draw_data->FramebufferScale.y;
+    vp.MinDepth = 0.0f;
+    vp.MaxDepth = 1.0f;
+    vp.TopLeftX = vp.TopLeftY = 0;
+    device_ctx->RSSetViewports(1, &vp);
+
+    // Setup orthographic projection matrix into our constant buffer
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
+    D3D11_MAPPED_SUBRESOURCE mapped_resource;
+    if (device_ctx->Map(bd->pVertexConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mapped_resource) == S_OK)
+    {
+        VERTEX_CONSTANT_BUFFER_DX11* constant_buffer = (VERTEX_CONSTANT_BUFFER_DX11*)mapped_resource.pData;
+        float L = draw_data->DisplayPos.x;
+        float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
+        float T = draw_data->DisplayPos.y;
+        float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
+        float mvp[4][4] =
+        {
+            { 2.0f/(R-L),   0.0f,           0.0f,       0.0f },
+            { 0.0f,         2.0f/(T-B),     0.0f,       0.0f },
+            { 0.0f,         0.0f,           0.5f,       0.0f },
+            { (R+L)/(L-R),  (T+B)/(B-T),    0.5f,       1.0f },
+        };
+        memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
+        device_ctx->Unmap(bd->pVertexConstantBuffer, 0);
+    }
+
+    // Setup shader and vertex buffers
+    unsigned int stride = sizeof(ImDrawVert);
+    unsigned int offset = 0;
+    device_ctx->IASetInputLayout(bd->pInputLayout);
+    device_ctx->IASetVertexBuffers(0, 1, &bd->pVB, &stride, &offset);
+    device_ctx->IASetIndexBuffer(bd->pIB, sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT, 0);
+    device_ctx->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+    device_ctx->VSSetShader(bd->pVertexShader, nullptr, 0);
+    device_ctx->VSSetConstantBuffers(0, 1, &bd->pVertexConstantBuffer);
+    device_ctx->PSSetShader(bd->pPixelShader, nullptr, 0);
+    device_ctx->PSSetSamplers(0, 1, &bd->pTexSamplerLinear);
+    device_ctx->GSSetShader(nullptr, nullptr, 0);
+    device_ctx->HSSetShader(nullptr, nullptr, 0); // In theory we should backup and restore this as well.. very infrequently used..
+    device_ctx->DSSetShader(nullptr, nullptr, 0); // In theory we should backup and restore this as well.. very infrequently used..
+    device_ctx->CSSetShader(nullptr, nullptr, 0); // In theory we should backup and restore this as well.. very infrequently used..
+
+    // Setup render state
+    const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
+    device_ctx->OMSetBlendState(bd->pBlendState, blend_factor, 0xffffffff);
+    device_ctx->OMSetDepthStencilState(bd->pDepthStencilState, 0);
+    device_ctx->RSSetState(bd->pRasterizerState);
+}
+
+// Render function
+void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
+{
+    // Avoid rendering when minimized
+    if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
+        return;
+
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    ID3D11DeviceContext* device = bd->pd3dDeviceContext;
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplDX11_UpdateTexture(tex);
+
+    // Create and grow vertex/index buffers if needed
+    if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount)
+    {
+        if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; }
+        bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
+        D3D11_BUFFER_DESC desc = {};
+        desc.Usage = D3D11_USAGE_DYNAMIC;
+        desc.ByteWidth = bd->VertexBufferSize * sizeof(ImDrawVert);
+        desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
+        desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+        desc.MiscFlags = 0;
+        if (bd->pd3dDevice->CreateBuffer(&desc, nullptr, &bd->pVB) < 0)
+            return;
+    }
+    if (!bd->pIB || bd->IndexBufferSize < draw_data->TotalIdxCount)
+    {
+        if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; }
+        bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
+        D3D11_BUFFER_DESC desc = {};
+        desc.Usage = D3D11_USAGE_DYNAMIC;
+        desc.ByteWidth = bd->IndexBufferSize * sizeof(ImDrawIdx);
+        desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
+        desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+        if (bd->pd3dDevice->CreateBuffer(&desc, nullptr, &bd->pIB) < 0)
+            return;
+    }
+
+    // Upload vertex/index data into a single contiguous GPU buffer
+    D3D11_MAPPED_SUBRESOURCE vtx_resource, idx_resource;
+    if (device->Map(bd->pVB, 0, D3D11_MAP_WRITE_DISCARD, 0, &vtx_resource) != S_OK)
+        return;
+    if (device->Map(bd->pIB, 0, D3D11_MAP_WRITE_DISCARD, 0, &idx_resource) != S_OK)
+        return;
+    ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource.pData;
+    ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource.pData;
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        memcpy(vtx_dst, draw_list->VtxBuffer.Data, draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
+        memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
+        vtx_dst += draw_list->VtxBuffer.Size;
+        idx_dst += draw_list->IdxBuffer.Size;
+    }
+    device->Unmap(bd->pVB, 0);
+    device->Unmap(bd->pIB, 0);
+
+    // Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
+    struct BACKUP_DX11_STATE
+    {
+        UINT                        ScissorRectsCount, ViewportsCount;
+        D3D11_RECT                  ScissorRects[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
+        D3D11_VIEWPORT              Viewports[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
+        ID3D11RasterizerState*      RS;
+        ID3D11BlendState*           BlendState;
+        FLOAT                       BlendFactor[4];
+        UINT                        SampleMask;
+        UINT                        StencilRef;
+        ID3D11DepthStencilState*    DepthStencilState;
+        ID3D11ShaderResourceView*   PSShaderResource;
+        ID3D11SamplerState*         PSSampler;
+        ID3D11PixelShader*          PS;
+        ID3D11VertexShader*         VS;
+        ID3D11GeometryShader*       GS;
+        UINT                        PSInstancesCount, VSInstancesCount, GSInstancesCount;
+        ID3D11ClassInstance         *PSInstances[256], *VSInstances[256], *GSInstances[256];   // 256 is max according to PSSetShader documentation
+        D3D11_PRIMITIVE_TOPOLOGY    PrimitiveTopology;
+        ID3D11Buffer*               IndexBuffer, *VertexBuffer, *VSConstantBuffer;
+        UINT                        IndexBufferOffset, VertexBufferStride, VertexBufferOffset;
+        DXGI_FORMAT                 IndexBufferFormat;
+        ID3D11InputLayout*          InputLayout;
+    };
+    BACKUP_DX11_STATE old = {};
+    old.ScissorRectsCount = old.ViewportsCount = D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
+    device->RSGetScissorRects(&old.ScissorRectsCount, old.ScissorRects);
+    device->RSGetViewports(&old.ViewportsCount, old.Viewports);
+    device->RSGetState(&old.RS);
+    device->OMGetBlendState(&old.BlendState, old.BlendFactor, &old.SampleMask);
+    device->OMGetDepthStencilState(&old.DepthStencilState, &old.StencilRef);
+    device->PSGetShaderResources(0, 1, &old.PSShaderResource);
+    device->PSGetSamplers(0, 1, &old.PSSampler);
+    old.PSInstancesCount = old.VSInstancesCount = old.GSInstancesCount = 256;
+    device->PSGetShader(&old.PS, old.PSInstances, &old.PSInstancesCount);
+    device->VSGetShader(&old.VS, old.VSInstances, &old.VSInstancesCount);
+    device->VSGetConstantBuffers(0, 1, &old.VSConstantBuffer);
+    device->GSGetShader(&old.GS, old.GSInstances, &old.GSInstancesCount);
+
+    device->IAGetPrimitiveTopology(&old.PrimitiveTopology);
+    device->IAGetIndexBuffer(&old.IndexBuffer, &old.IndexBufferFormat, &old.IndexBufferOffset);
+    device->IAGetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset);
+    device->IAGetInputLayout(&old.InputLayout);
+
+    // Setup desired DX state
+    ImGui_ImplDX11_SetupRenderState(draw_data, device);
+
+    // Setup render state structure (for callbacks and custom texture bindings)
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    ImGui_ImplDX11_RenderState render_state;
+    render_state.Device = bd->pd3dDevice;
+    render_state.DeviceContext = bd->pd3dDeviceContext;
+    render_state.SamplerDefault = bd->pTexSamplerLinear;
+    render_state.VertexConstantBuffer = bd->pVertexConstantBuffer;
+    platform_io.Renderer_RenderState = &render_state;
+
+    // Render command lists
+    // (Because we merged all buffers into a single one, we maintain our own offset into them)
+    int global_idx_offset = 0;
+    int global_vtx_offset = 0;
+    ImVec2 clip_off = draw_data->DisplayPos;
+    ImVec2 clip_scale = draw_data->FramebufferScale;
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback != nullptr)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplDX11_SetupRenderState(draw_data, device);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
+                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                // Apply scissor/clipping rectangle
+                const D3D11_RECT r = { (LONG)clip_min.x, (LONG)clip_min.y, (LONG)clip_max.x, (LONG)clip_max.y };
+                device->RSSetScissorRects(1, &r);
+
+                // Bind texture, Draw
+                ID3D11ShaderResourceView* texture_srv = (ID3D11ShaderResourceView*)pcmd->GetTexID();
+                device->PSSetShaderResources(0, 1, &texture_srv);
+                device->DrawIndexed(pcmd->ElemCount, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset);
+            }
+        }
+        global_idx_offset += draw_list->IdxBuffer.Size;
+        global_vtx_offset += draw_list->VtxBuffer.Size;
+    }
+    platform_io.Renderer_RenderState = nullptr;
+
+    // Restore modified DX state
+    device->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
+    device->RSSetViewports(old.ViewportsCount, old.Viewports);
+    device->RSSetState(old.RS); if (old.RS) old.RS->Release();
+    device->OMSetBlendState(old.BlendState, old.BlendFactor, old.SampleMask); if (old.BlendState) old.BlendState->Release();
+    device->OMSetDepthStencilState(old.DepthStencilState, old.StencilRef); if (old.DepthStencilState) old.DepthStencilState->Release();
+    device->PSSetShaderResources(0, 1, &old.PSShaderResource); if (old.PSShaderResource) old.PSShaderResource->Release();
+    device->PSSetSamplers(0, 1, &old.PSSampler); if (old.PSSampler) old.PSSampler->Release();
+    device->PSSetShader(old.PS, old.PSInstances, old.PSInstancesCount); if (old.PS) old.PS->Release();
+    for (UINT i = 0; i < old.PSInstancesCount; i++) if (old.PSInstances[i]) old.PSInstances[i]->Release();
+    device->VSSetShader(old.VS, old.VSInstances, old.VSInstancesCount); if (old.VS) old.VS->Release();
+    device->VSSetConstantBuffers(0, 1, &old.VSConstantBuffer); if (old.VSConstantBuffer) old.VSConstantBuffer->Release();
+    device->GSSetShader(old.GS, old.GSInstances, old.GSInstancesCount); if (old.GS) old.GS->Release();
+    for (UINT i = 0; i < old.VSInstancesCount; i++) if (old.VSInstances[i]) old.VSInstances[i]->Release();
+    device->IASetPrimitiveTopology(old.PrimitiveTopology);
+    device->IASetIndexBuffer(old.IndexBuffer, old.IndexBufferFormat, old.IndexBufferOffset); if (old.IndexBuffer) old.IndexBuffer->Release();
+    device->IASetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset); if (old.VertexBuffer) old.VertexBuffer->Release();
+    device->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
+}
+
+static void ImGui_ImplDX11_DestroyTexture(ImTextureData* tex)
+{
+    if (ImGui_ImplDX11_Texture* backend_tex = (ImGui_ImplDX11_Texture*)tex->BackendUserData)
+    {
+        IM_ASSERT(backend_tex->pTextureView == (ID3D11ShaderResourceView*)(intptr_t)tex->TexID);
+        backend_tex->pTextureView->Release();
+        backend_tex->pTexture->Release();
+        IM_DELETE(backend_tex);
+
+        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->BackendUserData = nullptr;
+    }
+    tex->SetStatus(ImTextureStatus_Destroyed);
+}
+
+void ImGui_ImplDX11_UpdateTexture(ImTextureData* tex)
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+        unsigned int* pixels = (unsigned int*)tex->GetPixels();
+        ImGui_ImplDX11_Texture* backend_tex = IM_NEW(ImGui_ImplDX11_Texture)();
+
+        // Create texture
+        D3D11_TEXTURE2D_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.Width = (UINT)tex->Width;
+        desc.Height = (UINT)tex->Height;
+        desc.MipLevels = 1;
+        desc.ArraySize = 1;
+        desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        desc.SampleDesc.Count = 1;
+        desc.Usage = D3D11_USAGE_DEFAULT;
+        desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
+        desc.CPUAccessFlags = 0;
+        D3D11_SUBRESOURCE_DATA subResource;
+        subResource.pSysMem = pixels;
+        subResource.SysMemPitch = desc.Width * 4;
+        subResource.SysMemSlicePitch = 0;
+        bd->pd3dDevice->CreateTexture2D(&desc, &subResource, &backend_tex->pTexture);
+        IM_ASSERT(backend_tex->pTexture != nullptr && "Backend failed to create texture!");
+
+        // Create texture view
+        D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc;
+        ZeroMemory(&srvDesc, sizeof(srvDesc));
+        srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
+        srvDesc.Texture2D.MipLevels = desc.MipLevels;
+        srvDesc.Texture2D.MostDetailedMip = 0;
+        bd->pd3dDevice->CreateShaderResourceView(backend_tex->pTexture, &srvDesc, &backend_tex->pTextureView);
+        IM_ASSERT(backend_tex->pTextureView != nullptr && "Backend failed to create texture!");
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)backend_tex->pTextureView);
+        tex->SetStatus(ImTextureStatus_OK);
+        tex->BackendUserData = backend_tex;
+    }
+    else if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Update selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
+        ImGui_ImplDX11_Texture* backend_tex = (ImGui_ImplDX11_Texture*)tex->BackendUserData;
+        IM_ASSERT(backend_tex->pTextureView == (ID3D11ShaderResourceView*)(intptr_t)tex->TexID);
+        for (ImTextureRect& r : tex->Updates)
+        {
+            D3D11_BOX box = { (UINT)r.x, (UINT)r.y, (UINT)0, (UINT)(r.x + r.w), (UINT)(r.y + r .h), (UINT)1 };
+            bd->pd3dDeviceContext->UpdateSubresource(backend_tex->pTexture, 0, &box, tex->GetPixelsAt(r.x, r.y), (UINT)tex->GetPitch(), 0);
+        }
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
+        ImGui_ImplDX11_DestroyTexture(tex);
+}
+
+bool    ImGui_ImplDX11_CreateDeviceObjects()
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    if (!bd->pd3dDevice)
+        return false;
+    ImGui_ImplDX11_InvalidateDeviceObjects();
+
+    // By using D3DCompile() from <d3dcompiler.h> / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
+    // If you would like to use this DX11 sample code but remove this dependency you can:
+    //  1) compile once, save the compiled shader blobs into a file or source code and pass them to CreateVertexShader()/CreatePixelShader() [preferred solution]
+    //  2) use code to detect any version of the DLL and grab a pointer to D3DCompile from the DLL.
+    // See https://github.com/ocornut/imgui/pull/638 for sources and details.
+
+    // Create the vertex shader
+    {
+        static const char* vertexShader =
+            "cbuffer vertexBuffer : register(b0) \
+            {\
+              float4x4 ProjectionMatrix; \
+            };\
+            struct VS_INPUT\
+            {\
+              float2 pos : POSITION;\
+              float4 col : COLOR0;\
+              float2 uv  : TEXCOORD0;\
+            };\
+            \
+            struct PS_INPUT\
+            {\
+              float4 pos : SV_POSITION;\
+              float4 col : COLOR0;\
+              float2 uv  : TEXCOORD0;\
+            };\
+            \
+            PS_INPUT main(VS_INPUT input)\
+            {\
+              PS_INPUT output;\
+              output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\
+              output.col = input.col;\
+              output.uv  = input.uv;\
+              return output;\
+            }";
+
+        ID3DBlob* vertexShaderBlob;
+        if (FAILED(D3DCompile(vertexShader, strlen(vertexShader), nullptr, nullptr, nullptr, "main", "vs_4_0", 0, 0, &vertexShaderBlob, nullptr)))
+            return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
+        if (bd->pd3dDevice->CreateVertexShader(vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize(), nullptr, &bd->pVertexShader) != S_OK)
+        {
+            vertexShaderBlob->Release();
+            return false;
+        }
+
+        // Create the input layout
+        D3D11_INPUT_ELEMENT_DESC local_layout[] =
+        {
+            { "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT,   0, (UINT)offsetof(ImDrawVert, pos), D3D11_INPUT_PER_VERTEX_DATA, 0 },
+            { "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT,   0, (UINT)offsetof(ImDrawVert, uv),  D3D11_INPUT_PER_VERTEX_DATA, 0 },
+            { "COLOR",    0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)offsetof(ImDrawVert, col), D3D11_INPUT_PER_VERTEX_DATA, 0 },
+        };
+        if (bd->pd3dDevice->CreateInputLayout(local_layout, 3, vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize(), &bd->pInputLayout) != S_OK)
+        {
+            vertexShaderBlob->Release();
+            return false;
+        }
+        vertexShaderBlob->Release();
+
+        // Create the constant buffer
+        {
+            D3D11_BUFFER_DESC desc = {};
+            desc.ByteWidth = sizeof(VERTEX_CONSTANT_BUFFER_DX11);
+            desc.Usage = D3D11_USAGE_DYNAMIC;
+            desc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
+            desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
+            desc.MiscFlags = 0;
+            bd->pd3dDevice->CreateBuffer(&desc, nullptr, &bd->pVertexConstantBuffer);
+        }
+    }
+
+    // Create the pixel shader
+    {
+        static const char* pixelShader =
+            "struct PS_INPUT\
+            {\
+            float4 pos : SV_POSITION;\
+            float4 col : COLOR0;\
+            float2 uv  : TEXCOORD0;\
+            };\
+            sampler sampler0;\
+            Texture2D texture0;\
+            \
+            float4 main(PS_INPUT input) : SV_Target\
+            {\
+            float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \
+            return out_col; \
+            }";
+
+        ID3DBlob* pixelShaderBlob;
+        if (FAILED(D3DCompile(pixelShader, strlen(pixelShader), nullptr, nullptr, nullptr, "main", "ps_4_0", 0, 0, &pixelShaderBlob, nullptr)))
+            return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
+        if (bd->pd3dDevice->CreatePixelShader(pixelShaderBlob->GetBufferPointer(), pixelShaderBlob->GetBufferSize(), nullptr, &bd->pPixelShader) != S_OK)
+        {
+            pixelShaderBlob->Release();
+            return false;
+        }
+        pixelShaderBlob->Release();
+    }
+
+    // Create the blending setup
+    {
+        D3D11_BLEND_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.AlphaToCoverageEnable = false;
+        desc.RenderTarget[0].BlendEnable = true;
+        desc.RenderTarget[0].SrcBlend = D3D11_BLEND_SRC_ALPHA;
+        desc.RenderTarget[0].DestBlend = D3D11_BLEND_INV_SRC_ALPHA;
+        desc.RenderTarget[0].BlendOp = D3D11_BLEND_OP_ADD;
+        desc.RenderTarget[0].SrcBlendAlpha = D3D11_BLEND_ONE;
+        desc.RenderTarget[0].DestBlendAlpha = D3D11_BLEND_INV_SRC_ALPHA;
+        desc.RenderTarget[0].BlendOpAlpha = D3D11_BLEND_OP_ADD;
+        desc.RenderTarget[0].RenderTargetWriteMask = D3D11_COLOR_WRITE_ENABLE_ALL;
+        bd->pd3dDevice->CreateBlendState(&desc, &bd->pBlendState);
+    }
+
+    // Create the rasterizer state
+    {
+        D3D11_RASTERIZER_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.FillMode = D3D11_FILL_SOLID;
+        desc.CullMode = D3D11_CULL_NONE;
+        desc.ScissorEnable = true;
+        desc.DepthClipEnable = true;
+        bd->pd3dDevice->CreateRasterizerState(&desc, &bd->pRasterizerState);
+    }
+
+    // Create depth-stencil State
+    {
+        D3D11_DEPTH_STENCIL_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.DepthEnable = false;
+        desc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
+        desc.DepthFunc = D3D11_COMPARISON_ALWAYS;
+        desc.StencilEnable = false;
+        desc.FrontFace.StencilFailOp = desc.FrontFace.StencilDepthFailOp = desc.FrontFace.StencilPassOp = D3D11_STENCIL_OP_KEEP;
+        desc.FrontFace.StencilFunc = D3D11_COMPARISON_ALWAYS;
+        desc.BackFace = desc.FrontFace;
+        bd->pd3dDevice->CreateDepthStencilState(&desc, &bd->pDepthStencilState);
+    }
+
+    // Create texture sampler
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+    {
+        D3D11_SAMPLER_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
+        desc.AddressU = D3D11_TEXTURE_ADDRESS_CLAMP;
+        desc.AddressV = D3D11_TEXTURE_ADDRESS_CLAMP;
+        desc.AddressW = D3D11_TEXTURE_ADDRESS_CLAMP;
+        desc.MipLODBias = 0.f;
+        desc.ComparisonFunc = D3D11_COMPARISON_ALWAYS;
+        desc.MinLOD = 0.f;
+        desc.MaxLOD = 0.f;
+        bd->pd3dDevice->CreateSamplerState(&desc, &bd->pTexSamplerLinear);
+    }
+
+    return true;
+}
+
+void    ImGui_ImplDX11_InvalidateDeviceObjects()
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    if (!bd->pd3dDevice)
+        return;
+
+    // Destroy all textures
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+            ImGui_ImplDX11_DestroyTexture(tex);
+
+    if (bd->pTexSamplerLinear)      { bd->pTexSamplerLinear->Release(); bd->pTexSamplerLinear = nullptr; }
+    if (bd->pIB)                    { bd->pIB->Release(); bd->pIB = nullptr; }
+    if (bd->pVB)                    { bd->pVB->Release(); bd->pVB = nullptr; }
+    if (bd->pBlendState)            { bd->pBlendState->Release(); bd->pBlendState = nullptr; }
+    if (bd->pDepthStencilState)     { bd->pDepthStencilState->Release(); bd->pDepthStencilState = nullptr; }
+    if (bd->pRasterizerState)       { bd->pRasterizerState->Release(); bd->pRasterizerState = nullptr; }
+    if (bd->pPixelShader)           { bd->pPixelShader->Release(); bd->pPixelShader = nullptr; }
+    if (bd->pVertexConstantBuffer)  { bd->pVertexConstantBuffer->Release(); bd->pVertexConstantBuffer = nullptr; }
+    if (bd->pInputLayout)           { bd->pInputLayout->Release(); bd->pInputLayout = nullptr; }
+    if (bd->pVertexShader)          { bd->pVertexShader->Release(); bd->pVertexShader = nullptr; }
+}
+
+bool    ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_context)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplDX11_Data* bd = IM_NEW(ImGui_ImplDX11_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_dx11";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+
+    // Get factory from device
+    IDXGIDevice* pDXGIDevice = nullptr;
+    IDXGIAdapter* pDXGIAdapter = nullptr;
+    IDXGIFactory* pFactory = nullptr;
+
+    if (device->QueryInterface(IID_PPV_ARGS(&pDXGIDevice)) == S_OK)
+        if (pDXGIDevice->GetParent(IID_PPV_ARGS(&pDXGIAdapter)) == S_OK)
+            if (pDXGIAdapter->GetParent(IID_PPV_ARGS(&pFactory)) == S_OK)
+            {
+                bd->pd3dDevice = device;
+                bd->pd3dDeviceContext = device_context;
+                bd->pFactory = pFactory;
+            }
+    if (pDXGIDevice) pDXGIDevice->Release();
+    if (pDXGIAdapter) pDXGIAdapter->Release();
+    bd->pd3dDevice->AddRef();
+    bd->pd3dDeviceContext->AddRef();
+
+    ImGui_ImplDX11_InitMultiViewportSupport();
+
+    return true;
+}
+
+void ImGui_ImplDX11_Shutdown()
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplDX11_ShutdownMultiViewportSupport();
+    ImGui_ImplDX11_InvalidateDeviceObjects();
+    if (bd->pFactory)             { bd->pFactory->Release(); }
+    if (bd->pd3dDevice)           { bd->pd3dDevice->Release(); }
+    if (bd->pd3dDeviceContext)    { bd->pd3dDeviceContext->Release(); }
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
+void ImGui_ImplDX11_NewFrame()
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX11_Init()?");
+
+    if (!bd->pVertexShader)
+        if (!ImGui_ImplDX11_CreateDeviceObjects())
+            IM_ASSERT(0 && "ImGui_ImplDX11_CreateDeviceObjects() failed!");
+}
+
+//--------------------------------------------------------------------------------------------------------
+// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
+// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
+// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
+//--------------------------------------------------------------------------------------------------------
+
+// Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
+struct ImGui_ImplDX11_ViewportData
+{
+    IDXGISwapChain*                 SwapChain;
+    ID3D11RenderTargetView*         RTView;
+
+    ImGui_ImplDX11_ViewportData()   { SwapChain = nullptr; RTView = nullptr; }
+    ~ImGui_ImplDX11_ViewportData()  { IM_ASSERT(SwapChain == nullptr && RTView == nullptr); }
+};
+
+// Multi-Viewports: configure templates used when creating swapchains for secondary viewports. Will try them in order.
+// This is intentionally not declared in the .h file yet, so you will need to copy this declaration:
+void ImGui_ImplDX11_SetSwapChainDescs(const DXGI_SWAP_CHAIN_DESC* desc_templates, int desc_templates_count);
+void ImGui_ImplDX11_SetSwapChainDescs(const DXGI_SWAP_CHAIN_DESC* desc_templates, int desc_templates_count)
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    bd->SwapChainDescsForViewports.resize(desc_templates_count);
+    memcpy(bd->SwapChainDescsForViewports.Data, desc_templates, sizeof(DXGI_SWAP_CHAIN_DESC));
+}
+
+static void ImGui_ImplDX11_CreateWindow(ImGuiViewport* viewport)
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    ImGui_ImplDX11_ViewportData* vd = IM_NEW(ImGui_ImplDX11_ViewportData)();
+    viewport->RendererUserData = vd;
+
+    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL's WindowID).
+    // Some backends will leave PlatformHandleRaw == 0, in which case we assume PlatformHandle will contain the HWND.
+    HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
+    IM_ASSERT(hwnd != 0);
+    IM_ASSERT(vd->SwapChain == nullptr && vd->RTView == nullptr);
+
+    // Create swap chain
+    HRESULT hr = DXGI_ERROR_UNSUPPORTED;
+    for (const DXGI_SWAP_CHAIN_DESC& sd_template : bd->SwapChainDescsForViewports)
+    {
+        IM_ASSERT(sd_template.BufferDesc.Width == 0 && sd_template.BufferDesc.Height == 0 && sd_template.OutputWindow == nullptr);
+        DXGI_SWAP_CHAIN_DESC sd = sd_template;
+        sd.BufferDesc.Width = (UINT)viewport->Size.x;
+        sd.BufferDesc.Height = (UINT)viewport->Size.y;
+        sd.OutputWindow = hwnd;
+        hr = bd->pFactory->CreateSwapChain(bd->pd3dDevice, &sd, &vd->SwapChain);
+        if (SUCCEEDED(hr))
+            break;
+    }
+    IM_ASSERT(SUCCEEDED(hr));
+    bd->pFactory->MakeWindowAssociation(hwnd, DXGI_MWA_NO_ALT_ENTER | DXGI_MWA_NO_WINDOW_CHANGES); // Disable e.g. Alt+Enter
+
+    // Create the render target
+    if (vd->SwapChain != nullptr)
+    {
+        ID3D11Texture2D* pBackBuffer;
+        vd->SwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
+        bd->pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, &vd->RTView);
+        pBackBuffer->Release();
+    }
+}
+
+static void ImGui_ImplDX11_DestroyWindow(ImGuiViewport* viewport)
+{
+    // The main viewport (owned by the application) will always have RendererUserData == nullptr since we didn't create the data for it.
+    if (ImGui_ImplDX11_ViewportData* vd = (ImGui_ImplDX11_ViewportData*)viewport->RendererUserData)
+    {
+        if (vd->SwapChain)
+            vd->SwapChain->Release();
+        vd->SwapChain = nullptr;
+        if (vd->RTView)
+            vd->RTView->Release();
+        vd->RTView = nullptr;
+        IM_DELETE(vd);
+    }
+    viewport->RendererUserData = nullptr;
+}
+
+static void ImGui_ImplDX11_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    ImGui_ImplDX11_ViewportData* vd = (ImGui_ImplDX11_ViewportData*)viewport->RendererUserData;
+    if (vd->RTView)
+    {
+        vd->RTView->Release();
+        vd->RTView = nullptr;
+    }
+    if (vd->SwapChain)
+    {
+        ID3D11Texture2D* pBackBuffer = nullptr;
+        vd->SwapChain->ResizeBuffers(0, (UINT)size.x, (UINT)size.y, DXGI_FORMAT_UNKNOWN, 0);
+        vd->SwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
+        if (pBackBuffer == nullptr) { fprintf(stderr, "ImGui_ImplDX11_SetWindowSize() failed creating buffers.\n"); return; }
+        bd->pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, &vd->RTView);
+        pBackBuffer->Release();
+    }
+}
+
+static void ImGui_ImplDX11_RenderWindow(ImGuiViewport* viewport, void*)
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    ImGui_ImplDX11_ViewportData* vd = (ImGui_ImplDX11_ViewportData*)viewport->RendererUserData;
+    ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
+    bd->pd3dDeviceContext->OMSetRenderTargets(1, &vd->RTView, nullptr);
+    if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
+        bd->pd3dDeviceContext->ClearRenderTargetView(vd->RTView, (float*)&clear_color);
+    ImGui_ImplDX11_RenderDrawData(viewport->DrawData);
+}
+
+static void ImGui_ImplDX11_SwapBuffers(ImGuiViewport* viewport, void*)
+{
+    ImGui_ImplDX11_ViewportData* vd = (ImGui_ImplDX11_ViewportData*)viewport->RendererUserData;
+    if (vd->SwapChain)
+        vd->SwapChain->Present(0, 0); // Present without vsync
+}
+
+static void ImGui_ImplDX11_InitMultiViewportSupport()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_CreateWindow = ImGui_ImplDX11_CreateWindow;
+    platform_io.Renderer_DestroyWindow = ImGui_ImplDX11_DestroyWindow;
+    platform_io.Renderer_SetWindowSize = ImGui_ImplDX11_SetWindowSize;
+    platform_io.Renderer_RenderWindow = ImGui_ImplDX11_RenderWindow;
+    platform_io.Renderer_SwapBuffers = ImGui_ImplDX11_SwapBuffers;
+
+    // Default swapchain format
+    DXGI_SWAP_CHAIN_DESC sd;
+    ZeroMemory(&sd, sizeof(sd));
+    sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+    sd.SampleDesc.Count = 1;
+    sd.SampleDesc.Quality = 0;
+    sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+    sd.BufferCount = 1;
+    sd.Windowed = TRUE;
+    sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
+    sd.Flags = 0;
+    ImGui_ImplDX11_SetSwapChainDescs(&sd, 1);
+}
+
+static void ImGui_ImplDX11_ShutdownMultiViewportSupport()
+{
+    ImGui::DestroyPlatformWindows();
+}
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_dx11.h

@@ -0,0 +1,52 @@
+// dear imgui: Renderer Backend for DirectX11
+// This needs to be used along with a Platform Backend (e.g. Win32)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct ID3D11Device;
+struct ID3D11DeviceContext;
+struct ID3D11SamplerState;
+struct ID3D11Buffer;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_context);
+IMGUI_IMPL_API void     ImGui_ImplDX11_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplDX11_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data);
+
+// Use if you want to reset your rendering device without losing Dear ImGui state.
+IMGUI_IMPL_API bool     ImGui_ImplDX11_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplDX11_InvalidateDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplDX11_UpdateTexture(ImTextureData* tex);
+
+// [BETA] Selected render state data shared with callbacks.
+// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplDX11_RenderDrawData() call.
+// (Please open an issue if you feel you need access to more data)
+struct ImGui_ImplDX11_RenderState
+{
+    ID3D11Device*           Device;
+    ID3D11DeviceContext*    DeviceContext;
+    ID3D11SamplerState*     SamplerDefault;
+    ID3D11Buffer*           VertexConstantBuffer;
+};
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_dx12.h

@@ -0,0 +1,80 @@
+// dear imgui: Renderer Backend for DirectX12
+// This needs to be used along with a Platform Backend (e.g. Win32)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// The aim of imgui_impl_dx12.h/.cpp is to be usable in your engine without any modification.
+// IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+#include <dxgiformat.h> // DXGI_FORMAT
+#include <d3d12.h>      // D3D12_CPU_DESCRIPTOR_HANDLE
+
+// Initialization data, for ImGui_ImplDX12_Init()
+struct ImGui_ImplDX12_InitInfo
+{
+    ID3D12Device*               Device;
+    ID3D12CommandQueue*         CommandQueue;       // Command queue used for queuing texture uploads.
+    int                         NumFramesInFlight;
+    DXGI_FORMAT                 RTVFormat;          // RenderTarget format.
+    DXGI_FORMAT                 DSVFormat;          // DepthStencilView format.
+    void*                       UserData;
+
+    // Allocating SRV descriptors for textures is up to the application, so we provide callbacks.
+    // (current version of the backend will only allocate one descriptor, from 1.92 the backend will need to allocate more)
+    ID3D12DescriptorHeap*       SrvDescriptorHeap;
+    void                        (*SrvDescriptorAllocFn)(ImGui_ImplDX12_InitInfo* info, D3D12_CPU_DESCRIPTOR_HANDLE* out_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE* out_gpu_desc_handle);
+    void                        (*SrvDescriptorFreeFn)(ImGui_ImplDX12_InitInfo* info, D3D12_CPU_DESCRIPTOR_HANDLE cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE gpu_desc_handle);
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    D3D12_CPU_DESCRIPTOR_HANDLE LegacySingleSrvCpuDescriptor; // To facilitate transition from single descriptor to allocator callback, you may use those.
+    D3D12_GPU_DESCRIPTOR_HANDLE LegacySingleSrvGpuDescriptor;
+#endif
+
+    ImGui_ImplDX12_InitInfo()   { memset(this, 0, sizeof(*this)); }
+};
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* info);
+IMGUI_IMPL_API void     ImGui_ImplDX12_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplDX12_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandList* graphics_command_list);
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+// Legacy initialization API Obsoleted in 1.91.5
+// - font_srv_cpu_desc_handle and font_srv_gpu_desc_handle are handles to a single SRV descriptor to use for the internal font texture, they must be in 'srv_descriptor_heap'
+// - When we introduced the ImGui_ImplDX12_InitInfo struct we also added a 'ID3D12CommandQueue* CommandQueue' field.
+IMGUI_IMPL_API bool     ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, ID3D12DescriptorHeap* srv_descriptor_heap, D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle);
+#endif
+
+// Use if you want to reset your rendering device without losing Dear ImGui state.
+IMGUI_IMPL_API bool     ImGui_ImplDX12_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplDX12_InvalidateDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplDX12_UpdateTexture(ImTextureData* tex);
+
+// [BETA] Selected render state data shared with callbacks.
+// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplDX12_RenderDrawData() call.
+// (Please open an issue if you feel you need access to more data)
+struct ImGui_ImplDX12_RenderState
+{
+    ID3D12Device*               Device;
+    ID3D12GraphicsCommandList*  CommandList;
+};
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_dx9.cpp

@@ -0,0 +1,641 @@
+// dear imgui: Renderer Backend for DirectX9
+// This needs to be used along with a Platform Backend (e.g. Win32)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: IMGUI_USE_BGRA_PACKED_COLOR support, as this is the optimal color encoding for DirectX9.
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
+//  2025-06-11: DirectX9: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
+//  2024-10-07: DirectX9: Changed default texture sampler to Clamp instead of Repeat/Wrap.
+//  2024-02-12: DirectX9: Using RGBA format when supported by the driver to avoid CPU side conversion. (#6575)
+//  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
+//  2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
+//  2021-06-25: DirectX9: Explicitly disable texture state stages after >= 1.
+//  2021-05-19: DirectX9: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
+//  2021-04-23: DirectX9: Explicitly setting up more graphics states to increase compatibility with unusual non-default states.
+//  2021-03-18: DirectX9: Calling IDirect3DStateBlock9::Capture() after CreateStateBlock() as a workaround for state restoring issues (see #3857).
+//  2021-03-03: DirectX9: Added support for IMGUI_USE_BGRA_PACKED_COLOR in user's imconfig file.
+//  2021-02-18: DirectX9: Change blending equation to preserve alpha in output buffer.
+//  2019-05-29: DirectX9: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
+//  2019-04-30: DirectX9: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
+//  2019-03-29: Misc: Fixed erroneous assert in ImGui_ImplDX9_InvalidateDeviceObjects().
+//  2019-01-16: Misc: Disabled fog before drawing UI's. Fixes issue #2288.
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
+//  2018-06-08: Misc: Extracted imgui_impl_dx9.cpp/.h away from the old combined DX9+Win32 example.
+//  2018-06-08: DirectX9: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
+//  2018-05-07: Render: Saving/restoring Transform because they don't seem to be included in the StateBlock. Setting shading mode to Gouraud.
+//  2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplDX9_RenderDrawData() in the .h file so you can call it yourself.
+//  2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_dx9.h"
+
+// DirectX
+#include <d3d9.h>
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast                            // yes, they are more terse.
+#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
+#endif
+
+// DirectX data
+struct ImGui_ImplDX9_Data
+{
+    LPDIRECT3DDEVICE9           pd3dDevice;
+    LPDIRECT3DVERTEXBUFFER9     pVB;
+    LPDIRECT3DINDEXBUFFER9      pIB;
+    int                         VertexBufferSize;
+    int                         IndexBufferSize;
+    bool                        HasRgbaSupport;
+
+    ImGui_ImplDX9_Data()        { memset((void*)this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; }
+};
+
+struct CUSTOMVERTEX
+{
+    float    pos[3];
+    D3DCOLOR col;
+    float    uv[2];
+};
+#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE|D3DFVF_TEX1)
+
+#ifdef IMGUI_USE_BGRA_PACKED_COLOR
+#define IMGUI_COL_TO_DX9_ARGB(_COL)     (_COL)
+#else
+#define IMGUI_COL_TO_DX9_ARGB(_COL)     (((_COL) & 0xFF00FF00) | (((_COL) & 0xFF0000) >> 16) | (((_COL) & 0xFF) << 16))
+#endif
+
+// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+static ImGui_ImplDX9_Data* ImGui_ImplDX9_GetBackendData()
+{
+    return ImGui::GetCurrentContext() ? (ImGui_ImplDX9_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
+}
+
+// Forward Declarations
+static void ImGui_ImplDX9_InitMultiViewportSupport();
+static void ImGui_ImplDX9_ShutdownMultiViewportSupport();
+static void ImGui_ImplDX9_CreateDeviceObjectsForPlatformWindows();
+static void ImGui_ImplDX9_InvalidateDeviceObjectsForPlatformWindows();
+
+// Functions
+static void ImGui_ImplDX9_SetupRenderState(ImDrawData* draw_data)
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+
+    // Setup viewport
+    D3DVIEWPORT9 vp;
+    vp.X = vp.Y = 0;
+    vp.Width = (DWORD)draw_data->DisplaySize.x;
+    vp.Height = (DWORD)draw_data->DisplaySize.y;
+    vp.MinZ = 0.0f;
+    vp.MaxZ = 1.0f;
+
+    LPDIRECT3DDEVICE9 device = bd->pd3dDevice;
+    device->SetViewport(&vp);
+
+    // Setup render state: fixed-pipeline, alpha-blending, no face culling, no depth testing, shade mode (for gradient), bilinear sampling.
+    device->SetPixelShader(nullptr);
+    device->SetVertexShader(nullptr);
+    device->SetRenderState(D3DRS_FILLMODE, D3DFILL_SOLID);
+    device->SetRenderState(D3DRS_SHADEMODE, D3DSHADE_GOURAUD);
+    device->SetRenderState(D3DRS_ZWRITEENABLE, FALSE);
+    device->SetRenderState(D3DRS_ALPHATESTENABLE, FALSE);
+    device->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
+    device->SetRenderState(D3DRS_ZENABLE, FALSE);
+    device->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
+    device->SetRenderState(D3DRS_BLENDOP, D3DBLENDOP_ADD);
+    device->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
+    device->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
+    device->SetRenderState(D3DRS_SEPARATEALPHABLENDENABLE, TRUE);
+    device->SetRenderState(D3DRS_SRCBLENDALPHA, D3DBLEND_ONE);
+    device->SetRenderState(D3DRS_DESTBLENDALPHA, D3DBLEND_INVSRCALPHA);
+    device->SetRenderState(D3DRS_SCISSORTESTENABLE, TRUE);
+    device->SetRenderState(D3DRS_FOGENABLE, FALSE);
+    device->SetRenderState(D3DRS_RANGEFOGENABLE, FALSE);
+    device->SetRenderState(D3DRS_SPECULARENABLE, FALSE);
+    device->SetRenderState(D3DRS_STENCILENABLE, FALSE);
+    device->SetRenderState(D3DRS_CLIPPING, TRUE);
+    device->SetRenderState(D3DRS_LIGHTING, FALSE);
+    device->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE);
+    device->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
+    device->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE);
+    device->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_MODULATE);
+    device->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
+    device->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);
+    device->SetTextureStageState(1, D3DTSS_COLOROP, D3DTOP_DISABLE);
+    device->SetTextureStageState(1, D3DTSS_ALPHAOP, D3DTOP_DISABLE);
+    device->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);
+    device->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
+    device->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_CLAMP);
+    device->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_CLAMP);
+
+    // Setup orthographic projection matrix
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
+    // Being agnostic of whether <d3dx9.h> or <DirectXMath.h> can be used, we aren't relying on D3DXMatrixIdentity()/D3DXMatrixOrthoOffCenterLH() or DirectX::XMMatrixIdentity()/DirectX::XMMatrixOrthographicOffCenterLH()
+    {
+        float L = draw_data->DisplayPos.x + 0.5f;
+        float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x + 0.5f;
+        float T = draw_data->DisplayPos.y + 0.5f;
+        float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y + 0.5f;
+        D3DMATRIX mat_identity = { { { 1.0f, 0.0f, 0.0f, 0.0f,  0.0f, 1.0f, 0.0f, 0.0f,  0.0f, 0.0f, 1.0f, 0.0f,  0.0f, 0.0f, 0.0f, 1.0f } } };
+        D3DMATRIX mat_projection =
+        { { {
+            2.0f/(R-L),   0.0f,         0.0f,  0.0f,
+            0.0f,         2.0f/(T-B),   0.0f,  0.0f,
+            0.0f,         0.0f,         0.5f,  0.0f,
+            (L+R)/(L-R),  (T+B)/(B-T),  0.5f,  1.0f
+        } } };
+        device->SetTransform(D3DTS_WORLD, &mat_identity);
+        device->SetTransform(D3DTS_VIEW, &mat_identity);
+        device->SetTransform(D3DTS_PROJECTION, &mat_projection);
+    }
+}
+
+// Render function.
+void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
+{
+    // Avoid rendering when minimized
+    if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
+        return;
+
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    LPDIRECT3DDEVICE9 device = bd->pd3dDevice;
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplDX9_UpdateTexture(tex);
+
+    // Create and grow buffers if needed
+    if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount)
+    {
+        if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; }
+        bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
+        if (device->CreateVertexBuffer(bd->VertexBufferSize * sizeof(CUSTOMVERTEX), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &bd->pVB, nullptr) < 0)
+            return;
+    }
+    if (!bd->pIB || bd->IndexBufferSize < draw_data->TotalIdxCount)
+    {
+        if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; }
+        bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
+        if (device->CreateIndexBuffer(bd->IndexBufferSize * sizeof(ImDrawIdx), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, sizeof(ImDrawIdx) == 2 ? D3DFMT_INDEX16 : D3DFMT_INDEX32, D3DPOOL_DEFAULT, &bd->pIB, nullptr) < 0)
+            return;
+    }
+
+    // Backup the DX9 state
+    IDirect3DStateBlock9* state_block = nullptr;
+    if (device->CreateStateBlock(D3DSBT_ALL, &state_block) < 0)
+        return;
+    if (state_block->Capture() < 0)
+    {
+        state_block->Release();
+        return;
+    }
+
+    // Backup the DX9 transform (DX9 documentation suggests that it is included in the StateBlock but it doesn't appear to)
+    D3DMATRIX last_world, last_view, last_projection;
+    device->GetTransform(D3DTS_WORLD, &last_world);
+    device->GetTransform(D3DTS_VIEW, &last_view);
+    device->GetTransform(D3DTS_PROJECTION, &last_projection);
+
+    // Allocate buffers
+    CUSTOMVERTEX* vtx_dst;
+    ImDrawIdx* idx_dst;
+    if (bd->pVB->Lock(0, (UINT)(draw_data->TotalVtxCount * sizeof(CUSTOMVERTEX)), (void**)&vtx_dst, D3DLOCK_DISCARD) < 0)
+    {
+        state_block->Release();
+        return;
+    }
+    if (bd->pIB->Lock(0, (UINT)(draw_data->TotalIdxCount * sizeof(ImDrawIdx)), (void**)&idx_dst, D3DLOCK_DISCARD) < 0)
+    {
+        bd->pVB->Unlock();
+        state_block->Release();
+        return;
+    }
+
+    // Copy and convert all vertices into a single contiguous buffer, convert colors to DX9 default format.
+    // FIXME-OPT: This is a minor waste of resource, the ideal is to use imconfig.h and
+    //  1) to avoid repacking colors:   #define IMGUI_USE_BGRA_PACKED_COLOR
+    //  2) to avoid repacking vertices: #define IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT struct ImDrawVert { ImVec2 pos; float z; ImU32 col; ImVec2 uv; }
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        const ImDrawVert* vtx_src = draw_list->VtxBuffer.Data;
+        for (int i = 0; i < draw_list->VtxBuffer.Size; i++)
+        {
+            vtx_dst->pos[0] = vtx_src->pos.x;
+            vtx_dst->pos[1] = vtx_src->pos.y;
+            vtx_dst->pos[2] = 0.0f;
+            vtx_dst->col = IMGUI_COL_TO_DX9_ARGB(vtx_src->col);
+            vtx_dst->uv[0] = vtx_src->uv.x;
+            vtx_dst->uv[1] = vtx_src->uv.y;
+            vtx_dst++;
+            vtx_src++;
+        }
+        memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
+        idx_dst += draw_list->IdxBuffer.Size;
+    }
+    bd->pVB->Unlock();
+    bd->pIB->Unlock();
+    device->SetStreamSource(0, bd->pVB, 0, sizeof(CUSTOMVERTEX));
+    device->SetIndices(bd->pIB);
+    device->SetFVF(D3DFVF_CUSTOMVERTEX);
+
+    // Setup desired DX state
+    ImGui_ImplDX9_SetupRenderState(draw_data);
+
+    // Render command lists
+    // (Because we merged all buffers into a single one, we maintain our own offset into them)
+    int global_vtx_offset = 0;
+    int global_idx_offset = 0;
+    ImVec2 clip_off = draw_data->DisplayPos;
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback != nullptr)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplDX9_SetupRenderState(draw_data);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
+                ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                // Apply scissor/clipping rectangle
+                const RECT r = { (LONG)clip_min.x, (LONG)clip_min.y, (LONG)clip_max.x, (LONG)clip_max.y };
+                device->SetScissorRect(&r);
+
+                // Bind texture, Draw
+                const LPDIRECT3DTEXTURE9 texture = (LPDIRECT3DTEXTURE9)pcmd->GetTexID();
+                device->SetTexture(0, texture);
+                device->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, pcmd->VtxOffset + global_vtx_offset, 0, (UINT)draw_list->VtxBuffer.Size, pcmd->IdxOffset + global_idx_offset, pcmd->ElemCount / 3);
+            }
+        }
+        global_idx_offset += draw_list->IdxBuffer.Size;
+        global_vtx_offset += draw_list->VtxBuffer.Size;
+    }
+
+    // When using multi-viewports, it appears that there's an odd logic in DirectX9 which prevent subsequent windows
+    // from rendering until the first window submits at least one draw call, even once. That's our workaround. (see #2560)
+    if (global_vtx_offset == 0)
+        bd->pd3dDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 0, 0, 0);
+
+    // Restore the DX9 transform
+    device->SetTransform(D3DTS_WORLD, &last_world);
+    device->SetTransform(D3DTS_VIEW, &last_view);
+    device->SetTransform(D3DTS_PROJECTION, &last_projection);
+
+    // Restore the DX9 state
+    state_block->Apply();
+    state_block->Release();
+}
+
+static bool ImGui_ImplDX9_CheckFormatSupport(LPDIRECT3DDEVICE9 pDevice, D3DFORMAT format)
+{
+    LPDIRECT3D9 pd3d = nullptr;
+    if (pDevice->GetDirect3D(&pd3d) != D3D_OK)
+        return false;
+    D3DDEVICE_CREATION_PARAMETERS param = {};
+    D3DDISPLAYMODE mode = {};
+    if (pDevice->GetCreationParameters(&param) != D3D_OK || pDevice->GetDisplayMode(0, &mode) != D3D_OK)
+    {
+        pd3d->Release();
+        return false;
+    }
+    // Font texture should support linear filter, color blend and write to render-target
+    bool support = (pd3d->CheckDeviceFormat(param.AdapterOrdinal, param.DeviceType, mode.Format, D3DUSAGE_DYNAMIC | D3DUSAGE_QUERY_FILTER | D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING, D3DRTYPE_TEXTURE, format)) == D3D_OK;
+    pd3d->Release();
+    return support;
+}
+
+bool ImGui_ImplDX9_Init(IDirect3DDevice9* device)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplDX9_Data* bd = IM_NEW(ImGui_ImplDX9_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_dx9";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = 4096;
+
+    bd->pd3dDevice = device;
+    bd->pd3dDevice->AddRef();
+    bd->HasRgbaSupport = ImGui_ImplDX9_CheckFormatSupport(bd->pd3dDevice, D3DFMT_A8B8G8R8);
+
+    ImGui_ImplDX9_InitMultiViewportSupport();
+
+    return true;
+}
+
+void ImGui_ImplDX9_Shutdown()
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplDX9_ShutdownMultiViewportSupport();
+    ImGui_ImplDX9_InvalidateDeviceObjects();
+    if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
+// Convert RGBA32 to BGRA32 (because RGBA32 is not well supported by DX9 devices)
+static void ImGui_ImplDX9_CopyTextureRegion(bool tex_use_colors, const ImU32* src, int src_pitch, ImU32* dst, int dst_pitch, int w, int h)
+{
+#ifndef IMGUI_USE_BGRA_PACKED_COLOR
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    const bool convert_rgba_to_bgra = (!bd->HasRgbaSupport && tex_use_colors);
+#else
+    const bool convert_rgba_to_bgra = false;
+    IM_UNUSED(tex_use_colors);
+#endif
+    for (int y = 0; y < h; y++)
+    {
+        const ImU32* src_p = (const ImU32*)(const void*)((const unsigned char*)src + src_pitch * y);
+        ImU32* dst_p = (ImU32*)(void*)((unsigned char*)dst + dst_pitch * y);
+        if (convert_rgba_to_bgra)
+            for (int x = w; x > 0; x--, src_p++, dst_p++) // Convert copy
+                *dst_p = IMGUI_COL_TO_DX9_ARGB(*src_p);
+        else
+            memcpy(dst_p, src_p, w * 4); // Raw copy
+    }
+}
+
+void ImGui_ImplDX9_UpdateTexture(ImTextureData* tex)
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+        LPDIRECT3DTEXTURE9 dx_tex = nullptr;
+        HRESULT hr = bd->pd3dDevice->CreateTexture(tex->Width, tex->Height, 1, D3DUSAGE_DYNAMIC, bd->HasRgbaSupport ? D3DFMT_A8B8G8R8 : D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &dx_tex, nullptr);
+        if (hr < 0)
+        {
+            IM_ASSERT(hr >= 0 && "Backend failed to create texture!");
+            return;
+        }
+
+        D3DLOCKED_RECT locked_rect;
+        if (dx_tex->LockRect(0, &locked_rect, nullptr, 0) == D3D_OK)
+        {
+            ImGui_ImplDX9_CopyTextureRegion(tex->UseColors, (ImU32*)tex->GetPixels(), tex->Width * 4, (ImU32*)locked_rect.pBits, (ImU32)locked_rect.Pitch, tex->Width, tex->Height);
+            dx_tex->UnlockRect(0);
+        }
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)dx_tex);
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Update selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
+        LPDIRECT3DTEXTURE9 backend_tex = (LPDIRECT3DTEXTURE9)(intptr_t)tex->TexID;
+        RECT update_rect = { (LONG)tex->UpdateRect.x, (LONG)tex->UpdateRect.y, (LONG)(tex->UpdateRect.x + tex->UpdateRect.w), (LONG)(tex->UpdateRect.y + tex->UpdateRect.h) };
+        D3DLOCKED_RECT locked_rect;
+        if (backend_tex->LockRect(0, &locked_rect, &update_rect, 0) == D3D_OK)
+            for (ImTextureRect& r : tex->Updates)
+                ImGui_ImplDX9_CopyTextureRegion(tex->UseColors, (ImU32*)tex->GetPixelsAt(r.x, r.y), tex->Width * 4,
+                    (ImU32*)locked_rect.pBits + (r.x - update_rect.left) + (r.y - update_rect.top) * (locked_rect.Pitch / 4), (int)locked_rect.Pitch, r.w, r.h);
+        backend_tex->UnlockRect(0);
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantDestroy)
+    {
+        if (LPDIRECT3DTEXTURE9 backend_tex = (LPDIRECT3DTEXTURE9)tex->TexID)
+        {
+            IM_ASSERT(tex->TexID == (ImTextureID)(intptr_t)backend_tex);
+            backend_tex->Release();
+
+            // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+            tex->SetTexID(ImTextureID_Invalid);
+        }
+        tex->SetStatus(ImTextureStatus_Destroyed);
+    }
+}
+
+bool ImGui_ImplDX9_CreateDeviceObjects()
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    if (!bd || !bd->pd3dDevice)
+        return false;
+    ImGui_ImplDX9_CreateDeviceObjectsForPlatformWindows();
+    return true;
+}
+
+void ImGui_ImplDX9_InvalidateDeviceObjects()
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    if (!bd || !bd->pd3dDevice)
+        return;
+
+    // Destroy all textures
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+        {
+            tex->SetStatus(ImTextureStatus_WantDestroy);
+            ImGui_ImplDX9_UpdateTexture(tex);
+        }
+    if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; }
+    if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; }
+    ImGui_ImplDX9_InvalidateDeviceObjectsForPlatformWindows();
+}
+
+void ImGui_ImplDX9_NewFrame()
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX9_Init()?");
+    IM_UNUSED(bd);
+}
+
+//--------------------------------------------------------------------------------------------------------
+// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
+// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
+// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
+//--------------------------------------------------------------------------------------------------------
+
+// Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
+struct ImGui_ImplDX9_ViewportData
+{
+    IDirect3DSwapChain9*    SwapChain;
+    D3DPRESENT_PARAMETERS   d3dpp;
+
+    ImGui_ImplDX9_ViewportData()  { SwapChain = nullptr; ZeroMemory(&d3dpp, sizeof(D3DPRESENT_PARAMETERS)); }
+    ~ImGui_ImplDX9_ViewportData() { IM_ASSERT(SwapChain == nullptr); }
+};
+
+static void ImGui_ImplDX9_CreateWindow(ImGuiViewport* viewport)
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    ImGui_ImplDX9_ViewportData* vd = IM_NEW(ImGui_ImplDX9_ViewportData)();
+    viewport->RendererUserData = vd;
+
+    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL's WindowID).
+    // Some backends will leave PlatformHandleRaw == 0, in which case we assume PlatformHandle will contain the HWND.
+    HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
+    IM_ASSERT(hwnd != 0);
+
+    ZeroMemory(&vd->d3dpp, sizeof(D3DPRESENT_PARAMETERS));
+    vd->d3dpp.Windowed = TRUE;
+    vd->d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
+    vd->d3dpp.BackBufferWidth = (UINT)viewport->Size.x;
+    vd->d3dpp.BackBufferHeight = (UINT)viewport->Size.y;
+    vd->d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
+    vd->d3dpp.hDeviceWindow = hwnd;
+    vd->d3dpp.EnableAutoDepthStencil = FALSE;
+    vd->d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
+    vd->d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;   // Present without vsync
+
+    HRESULT hr = bd->pd3dDevice->CreateAdditionalSwapChain(&vd->d3dpp, &vd->SwapChain); IM_UNUSED(hr);
+    IM_ASSERT(hr == D3D_OK);
+    IM_ASSERT(vd->SwapChain != nullptr);
+}
+
+static void ImGui_ImplDX9_DestroyWindow(ImGuiViewport* viewport)
+{
+    // The main viewport (owned by the application) will always have RendererUserData == 0 since we didn't create the data for it.
+    if (ImGui_ImplDX9_ViewportData* vd = (ImGui_ImplDX9_ViewportData*)viewport->RendererUserData)
+    {
+        if (vd->SwapChain)
+            vd->SwapChain->Release();
+        vd->SwapChain = nullptr;
+        ZeroMemory(&vd->d3dpp, sizeof(D3DPRESENT_PARAMETERS));
+        IM_DELETE(vd);
+    }
+    viewport->RendererUserData = nullptr;
+}
+
+static void ImGui_ImplDX9_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    ImGui_ImplDX9_ViewportData* vd = (ImGui_ImplDX9_ViewportData*)viewport->RendererUserData;
+    if (vd->SwapChain)
+    {
+        vd->SwapChain->Release();
+        vd->SwapChain = nullptr;
+        vd->d3dpp.BackBufferWidth = (UINT)size.x;
+        vd->d3dpp.BackBufferHeight = (UINT)size.y;
+        HRESULT hr = bd->pd3dDevice->CreateAdditionalSwapChain(&vd->d3dpp, &vd->SwapChain); IM_UNUSED(hr);
+        IM_ASSERT(hr == D3D_OK);
+    }
+}
+
+static void ImGui_ImplDX9_RenderWindow(ImGuiViewport* viewport, void*)
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    ImGui_ImplDX9_ViewportData* vd = (ImGui_ImplDX9_ViewportData*)viewport->RendererUserData;
+    ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
+
+    LPDIRECT3DSURFACE9 render_target = nullptr;
+    LPDIRECT3DSURFACE9 last_render_target = nullptr;
+    LPDIRECT3DSURFACE9 last_depth_stencil = nullptr;
+    vd->SwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &render_target);
+    bd->pd3dDevice->GetRenderTarget(0, &last_render_target);
+    bd->pd3dDevice->GetDepthStencilSurface(&last_depth_stencil);
+    bd->pd3dDevice->SetRenderTarget(0, render_target);
+    bd->pd3dDevice->SetDepthStencilSurface(nullptr);
+
+    if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
+    {
+        D3DCOLOR clear_col_dx = D3DCOLOR_RGBA((int)(clear_color.x*255.0f), (int)(clear_color.y*255.0f), (int)(clear_color.z*255.0f), (int)(clear_color.w*255.0f));
+        bd->pd3dDevice->Clear(0, nullptr, D3DCLEAR_TARGET, clear_col_dx, 1.0f, 0);
+    }
+
+    ImGui_ImplDX9_RenderDrawData(viewport->DrawData);
+
+    // Restore render target
+    bd->pd3dDevice->SetRenderTarget(0, last_render_target);
+    bd->pd3dDevice->SetDepthStencilSurface(last_depth_stencil);
+    render_target->Release();
+    last_render_target->Release();
+    if (last_depth_stencil) last_depth_stencil->Release();
+}
+
+static void ImGui_ImplDX9_SwapBuffers(ImGuiViewport* viewport, void*)
+{
+    ImGui_ImplDX9_ViewportData* vd = (ImGui_ImplDX9_ViewportData*)viewport->RendererUserData;
+    HRESULT hr = vd->SwapChain->Present(nullptr, nullptr, vd->d3dpp.hDeviceWindow, nullptr, 0);
+    // Let main application handle D3DERR_DEVICELOST by resetting the device.
+    IM_ASSERT(SUCCEEDED(hr) || hr == D3DERR_DEVICELOST);
+}
+
+static void ImGui_ImplDX9_InitMultiViewportSupport()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_CreateWindow = ImGui_ImplDX9_CreateWindow;
+    platform_io.Renderer_DestroyWindow = ImGui_ImplDX9_DestroyWindow;
+    platform_io.Renderer_SetWindowSize = ImGui_ImplDX9_SetWindowSize;
+    platform_io.Renderer_RenderWindow = ImGui_ImplDX9_RenderWindow;
+    platform_io.Renderer_SwapBuffers = ImGui_ImplDX9_SwapBuffers;
+}
+
+static void ImGui_ImplDX9_ShutdownMultiViewportSupport()
+{
+    ImGui::DestroyPlatformWindows();
+}
+
+static void ImGui_ImplDX9_CreateDeviceObjectsForPlatformWindows()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    for (int i = 1; i < platform_io.Viewports.Size; i++)
+        if (!platform_io.Viewports[i]->RendererUserData)
+            ImGui_ImplDX9_CreateWindow(platform_io.Viewports[i]);
+}
+
+static void ImGui_ImplDX9_InvalidateDeviceObjectsForPlatformWindows()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    for (int i = 1; i < platform_io.Viewports.Size; i++)
+        if (platform_io.Viewports[i]->RendererUserData)
+            ImGui_ImplDX9_DestroyWindow(platform_io.Viewports[i]);
+}
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_dx9.h

@@ -0,0 +1,38 @@
+// dear imgui: Renderer Backend for DirectX9
+// This needs to be used along with a Platform Backend (e.g. Win32)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: IMGUI_USE_BGRA_PACKED_COLOR support, as this is the optimal color encoding for DirectX9.
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct IDirect3DDevice9;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplDX9_Init(IDirect3DDevice9* device);
+IMGUI_IMPL_API void     ImGui_ImplDX9_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplDX9_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data);
+
+// Use if you want to reset your rendering device without losing Dear ImGui state.
+IMGUI_IMPL_API bool     ImGui_ImplDX9_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplDX9_InvalidateDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplDX9_UpdateTexture(ImTextureData* tex);
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_glfw.h

@@ -0,0 +1,73 @@
+// dear imgui: Platform Backend for GLFW
+// This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan, WebGPU..)
+// (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
+// (Requires: GLFW 3.1+. Prefer GLFW 3.3+ for full feature support.)
+
+// Implemented features:
+//  [X] Platform: Clipboard support.
+//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen (Windows only).
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLFW_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors) with GLFW 3.1+. Resizing cursors requires GLFW 3.4+! Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+//  [X] Multiple Dear ImGui contexts support.
+// Missing features or Issues:
+//  [ ] Platform: Touch events are only correctly identified as Touch on Windows. This create issues with some interactions. GLFW doesn't provide a way to identify touch inputs from mouse inputs, we cannot call io.AddMouseSourceEvent() to identify the source. We provide a Windows-specific workaround.
+//  [ ] Platform: Missing ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress cursors.
+//  [ ] Platform: Multi-viewport: Missing ImGuiBackendFlags_HasParentViewport support. The viewport->ParentViewportID field is ignored, and therefore io.ConfigViewportsNoDefaultParent has no effect either.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct GLFWwindow;
+struct GLFWmonitor;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks);
+IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks);
+IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForOther(GLFWwindow* window, bool install_callbacks);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplGlfw_NewFrame();
+
+// Emscripten related initialization phase methods (call after ImGui_ImplGlfw_InitForOpenGL)
+#ifdef __EMSCRIPTEN__
+IMGUI_IMPL_API void     ImGui_ImplGlfw_InstallEmscriptenCallbacks(GLFWwindow* window, const char* canvas_selector);
+//static inline void    ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback(const char* canvas_selector) { ImGui_ImplGlfw_InstallEmscriptenCallbacks(nullptr, canvas_selector); } } // Renamed in 1.91.0
+#endif
+
+// GLFW callbacks install
+// - When calling Init with 'install_callbacks=true': ImGui_ImplGlfw_InstallCallbacks() is called. GLFW callbacks will be installed for you. They will chain-call user's previously installed callbacks, if any.
+// - When calling Init with 'install_callbacks=false': GLFW callbacks won't be installed. You will need to call individual function yourself from your own GLFW callbacks.
+IMGUI_IMPL_API void     ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_RestoreCallbacks(GLFWwindow* window);
+
+// GFLW callbacks options:
+// - Set 'chain_for_all_windows=true' to enable chaining callbacks for all windows (including secondary viewports created by backends or by user)
+IMGUI_IMPL_API void     ImGui_ImplGlfw_SetCallbacksChainForAllWindows(bool chain_for_all_windows);
+
+// GLFW callbacks (individual callbacks to call yourself if you didn't install callbacks)
+IMGUI_IMPL_API void     ImGui_ImplGlfw_WindowFocusCallback(GLFWwindow* window, int focused);        // Since 1.84
+IMGUI_IMPL_API void     ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered);        // Since 1.84
+IMGUI_IMPL_API void     ImGui_ImplGlfw_CursorPosCallback(GLFWwindow* window, double x, double y);   // Since 1.87
+IMGUI_IMPL_API void     ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_MonitorCallback(GLFWmonitor* monitor, int event);
+
+// GLFW helpers
+IMGUI_IMPL_API void     ImGui_ImplGlfw_Sleep(int milliseconds);
+IMGUI_IMPL_API float    ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window);
+IMGUI_IMPL_API float    ImGui_ImplGlfw_GetContentScaleForMonitor(GLFWmonitor* monitor);
+
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_glut.cpp

@@ -0,0 +1,310 @@
+// dear imgui: Platform Backend for GLUT/FreeGLUT
+// This needs to be used along with a Renderer (e.g. OpenGL2)
+
+// !!! GLUT/FreeGLUT IS OBSOLETE PREHISTORIC SOFTWARE. Using GLUT is not recommended unless you really miss the 90's. !!!
+// !!! If someone or something is teaching you GLUT today, you are being abused. Please show some resistance. !!!
+// !!! Nowadays, prefer using GLFW or SDL instead!
+
+// Implemented features:
+//  [X] Platform: Partial keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLUT values are obsolete since 1.87 and not supported since 1.91.5]
+// Missing features or Issues:
+//  [ ] Platform: GLUT is unable to distinguish e.g. Backspace from CTRL+H or TAB from CTRL+I
+//  [ ] Platform: Missing horizontal mouse wheel support.
+//  [ ] Platform: Missing mouse cursor shape/visibility support.
+//  [ ] Platform: Missing clipboard support (not supported by Glut).
+//  [ ] Platform: Missing gamepad support.
+//  [ ] Platform: Missing multi-viewport support (multiple windows).
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2023-04-17: BREAKING: Removed call to ImGui::NewFrame() from ImGui_ImplGLUT_NewFrame(). Needs to be called from the main application loop, like with every other backends.
+//  2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported).
+//  2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago) with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion.
+//  2022-01-17: Inputs: calling new io.AddMousePosEvent(), io.AddMouseButtonEvent(), io.AddMouseWheelEvent() API (1.87+).
+//  2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range.
+//  2019-04-03: Misc: Renamed imgui_impl_freeglut.cpp/.h to imgui_impl_glut.cpp/.h.
+//  2019-03-25: Misc: Made io.DeltaTime always above zero.
+//  2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
+//  2018-03-22: Added GLUT Platform binding.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_glut.h"
+#define GL_SILENCE_DEPRECATION
+#ifdef __APPLE__
+#include <GLUT/glut.h>
+#else
+#include <GL/freeglut.h>
+#endif
+
+#ifdef _MSC_VER
+#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
+#endif
+
+static int g_Time = 0;          // Current time, in milliseconds
+
+// Glut has one function for characters and one for "special keys". We map the characters in the 0..255 range and the keys above.
+static ImGuiKey ImGui_ImplGLUT_KeyToImGuiKey(int key)
+{
+    switch (key)
+    {
+        case '\t':                      return ImGuiKey_Tab;
+        case 256 + GLUT_KEY_LEFT:       return ImGuiKey_LeftArrow;
+        case 256 + GLUT_KEY_RIGHT:      return ImGuiKey_RightArrow;
+        case 256 + GLUT_KEY_UP:         return ImGuiKey_UpArrow;
+        case 256 + GLUT_KEY_DOWN:       return ImGuiKey_DownArrow;
+        case 256 + GLUT_KEY_PAGE_UP:    return ImGuiKey_PageUp;
+        case 256 + GLUT_KEY_PAGE_DOWN:  return ImGuiKey_PageDown;
+        case 256 + GLUT_KEY_HOME:       return ImGuiKey_Home;
+        case 256 + GLUT_KEY_END:        return ImGuiKey_End;
+        case 256 + GLUT_KEY_INSERT:     return ImGuiKey_Insert;
+        case 127:                       return ImGuiKey_Delete;
+        case 8:                         return ImGuiKey_Backspace;
+        case ' ':                       return ImGuiKey_Space;
+        case 13:                        return ImGuiKey_Enter;
+        case 27:                        return ImGuiKey_Escape;
+        case 39:                        return ImGuiKey_Apostrophe;
+        case 44:                        return ImGuiKey_Comma;
+        case 45:                        return ImGuiKey_Minus;
+        case 46:                        return ImGuiKey_Period;
+        case 47:                        return ImGuiKey_Slash;
+        case 59:                        return ImGuiKey_Semicolon;
+        case 61:                        return ImGuiKey_Equal;
+        case 91:                        return ImGuiKey_LeftBracket;
+        case 92:                        return ImGuiKey_Backslash;
+        case 93:                        return ImGuiKey_RightBracket;
+        case 96:                        return ImGuiKey_GraveAccent;
+        //case 0:                         return ImGuiKey_CapsLock;
+        //case 0:                         return ImGuiKey_ScrollLock;
+        case 256 + 0x006D:              return ImGuiKey_NumLock;
+        //case 0:                         return ImGuiKey_PrintScreen;
+        //case 0:                         return ImGuiKey_Pause;
+        //case '0':                       return ImGuiKey_Keypad0;
+        //case '1':                       return ImGuiKey_Keypad1;
+        //case '2':                       return ImGuiKey_Keypad2;
+        //case '3':                       return ImGuiKey_Keypad3;
+        //case '4':                       return ImGuiKey_Keypad4;
+        //case '5':                       return ImGuiKey_Keypad5;
+        //case '6':                       return ImGuiKey_Keypad6;
+        //case '7':                       return ImGuiKey_Keypad7;
+        //case '8':                       return ImGuiKey_Keypad8;
+        //case '9':                       return ImGuiKey_Keypad9;
+        //case 46:                        return ImGuiKey_KeypadDecimal;
+        //case 47:                        return ImGuiKey_KeypadDivide;
+        case 42:                        return ImGuiKey_KeypadMultiply;
+        //case 45:                        return ImGuiKey_KeypadSubtract;
+        case 43:                        return ImGuiKey_KeypadAdd;
+        //case 13:                        return ImGuiKey_KeypadEnter;
+        //case 0:                         return ImGuiKey_KeypadEqual;
+        case 256 + 0x0072:              return ImGuiKey_LeftCtrl;
+        case 256 + 0x0070:              return ImGuiKey_LeftShift;
+        case 256 + 0x0074:              return ImGuiKey_LeftAlt;
+        //case 0:                         return ImGuiKey_LeftSuper;
+        case 256 + 0x0073:              return ImGuiKey_RightCtrl;
+        case 256 + 0x0071:              return ImGuiKey_RightShift;
+        case 256 + 0x0075:              return ImGuiKey_RightAlt;
+        //case 0:                         return ImGuiKey_RightSuper;
+        //case 0:                         return ImGuiKey_Menu;
+        case '0':                       return ImGuiKey_0;
+        case '1':                       return ImGuiKey_1;
+        case '2':                       return ImGuiKey_2;
+        case '3':                       return ImGuiKey_3;
+        case '4':                       return ImGuiKey_4;
+        case '5':                       return ImGuiKey_5;
+        case '6':                       return ImGuiKey_6;
+        case '7':                       return ImGuiKey_7;
+        case '8':                       return ImGuiKey_8;
+        case '9':                       return ImGuiKey_9;
+        case 'A': case 'a':             return ImGuiKey_A;
+        case 'B': case 'b':             return ImGuiKey_B;
+        case 'C': case 'c':             return ImGuiKey_C;
+        case 'D': case 'd':             return ImGuiKey_D;
+        case 'E': case 'e':             return ImGuiKey_E;
+        case 'F': case 'f':             return ImGuiKey_F;
+        case 'G': case 'g':             return ImGuiKey_G;
+        case 'H': case 'h':             return ImGuiKey_H;
+        case 'I': case 'i':             return ImGuiKey_I;
+        case 'J': case 'j':             return ImGuiKey_J;
+        case 'K': case 'k':             return ImGuiKey_K;
+        case 'L': case 'l':             return ImGuiKey_L;
+        case 'M': case 'm':             return ImGuiKey_M;
+        case 'N': case 'n':             return ImGuiKey_N;
+        case 'O': case 'o':             return ImGuiKey_O;
+        case 'P': case 'p':             return ImGuiKey_P;
+        case 'Q': case 'q':             return ImGuiKey_Q;
+        case 'R': case 'r':             return ImGuiKey_R;
+        case 'S': case 's':             return ImGuiKey_S;
+        case 'T': case 't':             return ImGuiKey_T;
+        case 'U': case 'u':             return ImGuiKey_U;
+        case 'V': case 'v':             return ImGuiKey_V;
+        case 'W': case 'w':             return ImGuiKey_W;
+        case 'X': case 'x':             return ImGuiKey_X;
+        case 'Y': case 'y':             return ImGuiKey_Y;
+        case 'Z': case 'z':             return ImGuiKey_Z;
+        case 256 + GLUT_KEY_F1:         return ImGuiKey_F1;
+        case 256 + GLUT_KEY_F2:         return ImGuiKey_F2;
+        case 256 + GLUT_KEY_F3:         return ImGuiKey_F3;
+        case 256 + GLUT_KEY_F4:         return ImGuiKey_F4;
+        case 256 + GLUT_KEY_F5:         return ImGuiKey_F5;
+        case 256 + GLUT_KEY_F6:         return ImGuiKey_F6;
+        case 256 + GLUT_KEY_F7:         return ImGuiKey_F7;
+        case 256 + GLUT_KEY_F8:         return ImGuiKey_F8;
+        case 256 + GLUT_KEY_F9:         return ImGuiKey_F9;
+        case 256 + GLUT_KEY_F10:        return ImGuiKey_F10;
+        case 256 + GLUT_KEY_F11:        return ImGuiKey_F11;
+        case 256 + GLUT_KEY_F12:        return ImGuiKey_F12;
+        default:                        return ImGuiKey_None;
+    }
+}
+
+bool ImGui_ImplGLUT_Init()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+
+#ifdef FREEGLUT
+    io.BackendPlatformName = "imgui_impl_glut (freeglut)";
+#else
+    io.BackendPlatformName = "imgui_impl_glut";
+#endif
+    g_Time = 0;
+
+    return true;
+}
+
+void ImGui_ImplGLUT_InstallFuncs()
+{
+    glutReshapeFunc(ImGui_ImplGLUT_ReshapeFunc);
+    glutMotionFunc(ImGui_ImplGLUT_MotionFunc);
+    glutPassiveMotionFunc(ImGui_ImplGLUT_MotionFunc);
+    glutMouseFunc(ImGui_ImplGLUT_MouseFunc);
+#ifdef __FREEGLUT_EXT_H__
+    glutMouseWheelFunc(ImGui_ImplGLUT_MouseWheelFunc);
+#endif
+    glutKeyboardFunc(ImGui_ImplGLUT_KeyboardFunc);
+    glutKeyboardUpFunc(ImGui_ImplGLUT_KeyboardUpFunc);
+    glutSpecialFunc(ImGui_ImplGLUT_SpecialFunc);
+    glutSpecialUpFunc(ImGui_ImplGLUT_SpecialUpFunc);
+}
+
+void ImGui_ImplGLUT_Shutdown()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendPlatformName = nullptr;
+}
+
+void ImGui_ImplGLUT_NewFrame()
+{
+    // Setup time step
+    ImGuiIO& io = ImGui::GetIO();
+    int current_time = glutGet(GLUT_ELAPSED_TIME);
+    int delta_time_ms = (current_time - g_Time);
+    if (delta_time_ms <= 0)
+        delta_time_ms = 1;
+    io.DeltaTime = delta_time_ms / 1000.0f;
+    g_Time = current_time;
+}
+
+static void ImGui_ImplGLUT_UpdateKeyModifiers()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    int glut_key_mods = glutGetModifiers();
+    io.AddKeyEvent(ImGuiMod_Ctrl, (glut_key_mods & GLUT_ACTIVE_CTRL) != 0);
+    io.AddKeyEvent(ImGuiMod_Shift, (glut_key_mods & GLUT_ACTIVE_SHIFT) != 0);
+    io.AddKeyEvent(ImGuiMod_Alt, (glut_key_mods & GLUT_ACTIVE_ALT) != 0);
+}
+
+static void ImGui_ImplGLUT_AddKeyEvent(ImGuiKey key, bool down, int native_keycode)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.AddKeyEvent(key, down);
+    io.SetKeyEventNativeData(key, native_keycode, -1); // To support legacy indexing (<1.87 user code)
+}
+
+void ImGui_ImplGLUT_KeyboardFunc(unsigned char c, int x, int y)
+{
+    // Send character to imgui
+    //printf("char_down_func %d '%c'\n", c, c);
+    ImGuiIO& io = ImGui::GetIO();
+    if (c >= 32)
+        io.AddInputCharacter((unsigned int)c);
+
+    ImGuiKey key = ImGui_ImplGLUT_KeyToImGuiKey(c);
+    ImGui_ImplGLUT_AddKeyEvent(key, true, c);
+    ImGui_ImplGLUT_UpdateKeyModifiers();
+    (void)x; (void)y; // Unused
+}
+
+void ImGui_ImplGLUT_KeyboardUpFunc(unsigned char c, int x, int y)
+{
+    //printf("char_up_func %d '%c'\n", c, c);
+    ImGuiKey key = ImGui_ImplGLUT_KeyToImGuiKey(c);
+    ImGui_ImplGLUT_AddKeyEvent(key, false, c);
+    ImGui_ImplGLUT_UpdateKeyModifiers();
+    (void)x; (void)y; // Unused
+}
+
+void ImGui_ImplGLUT_SpecialFunc(int key, int x, int y)
+{
+    //printf("key_down_func %d\n", key);
+    ImGuiKey imgui_key = ImGui_ImplGLUT_KeyToImGuiKey(key + 256);
+    ImGui_ImplGLUT_AddKeyEvent(imgui_key, true, key + 256);
+    ImGui_ImplGLUT_UpdateKeyModifiers();
+    (void)x; (void)y; // Unused
+}
+
+void ImGui_ImplGLUT_SpecialUpFunc(int key, int x, int y)
+{
+    //printf("key_up_func %d\n", key);
+    ImGuiKey imgui_key = ImGui_ImplGLUT_KeyToImGuiKey(key + 256);
+    ImGui_ImplGLUT_AddKeyEvent(imgui_key, false, key + 256);
+    ImGui_ImplGLUT_UpdateKeyModifiers();
+    (void)x; (void)y; // Unused
+}
+
+void ImGui_ImplGLUT_MouseFunc(int glut_button, int state, int x, int y)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.AddMousePosEvent((float)x, (float)y);
+    int button = -1;
+    if (glut_button == GLUT_LEFT_BUTTON) button = 0;
+    if (glut_button == GLUT_RIGHT_BUTTON) button = 1;
+    if (glut_button == GLUT_MIDDLE_BUTTON) button = 2;
+    if (button != -1 && (state == GLUT_DOWN || state == GLUT_UP))
+        io.AddMouseButtonEvent(button, state == GLUT_DOWN);
+}
+
+#ifdef __FREEGLUT_EXT_H__
+void ImGui_ImplGLUT_MouseWheelFunc(int button, int dir, int x, int y)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.AddMousePosEvent((float)x, (float)y);
+    if (dir != 0)
+        io.AddMouseWheelEvent(0.0f, dir > 0 ? 1.0f : -1.0f);
+    (void)button; // Unused
+}
+#endif
+
+void ImGui_ImplGLUT_ReshapeFunc(int w, int h)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.DisplaySize = ImVec2((float)w, (float)h);
+}
+
+void ImGui_ImplGLUT_MotionFunc(int x, int y)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.AddMousePosEvent((float)x, (float)y);
+}
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_glut.h

@@ -0,0 +1,48 @@
+// dear imgui: Platform Backend for GLUT/FreeGLUT
+// This needs to be used along with a Renderer (e.g. OpenGL2)
+
+// !!! GLUT/FreeGLUT IS OBSOLETE PREHISTORIC SOFTWARE. Using GLUT is not recommended unless you really miss the 90's. !!!
+// !!! If someone or something is teaching you GLUT today, you are being abused. Please show some resistance. !!!
+// !!! Nowadays, prefer using GLFW or SDL instead!
+
+// Implemented features:
+//  [X] Platform: Partial keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLUT values are obsolete since 1.87 and not supported since 1.91.5]
+// Missing features or Issues:
+//  [ ] Platform: GLUT is unable to distinguish e.g. Backspace from CTRL+H or TAB from CTRL+I
+//  [ ] Platform: Missing horizontal mouse wheel support.
+//  [ ] Platform: Missing mouse cursor shape/visibility support.
+//  [ ] Platform: Missing clipboard support (not supported by Glut).
+//  [ ] Platform: Missing gamepad support.
+//  [ ] Platform: Missing multi-viewport support (multiple windows).
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#ifndef IMGUI_DISABLE
+#include "imgui.h"      // IMGUI_IMPL_API
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplGLUT_Init();
+IMGUI_IMPL_API void     ImGui_ImplGLUT_InstallFuncs();
+IMGUI_IMPL_API void     ImGui_ImplGLUT_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplGLUT_NewFrame();
+
+// You can call ImGui_ImplGLUT_InstallFuncs() to get all those functions installed automatically,
+// or call them yourself from your own GLUT handlers. We are using the same weird names as GLUT for consistency..
+//------------------------------------ GLUT name ---------------------------------------------- Decent Name ---------
+IMGUI_IMPL_API void     ImGui_ImplGLUT_ReshapeFunc(int w, int h);                           // ~ ResizeFunc
+IMGUI_IMPL_API void     ImGui_ImplGLUT_MotionFunc(int x, int y);                            // ~ MouseMoveFunc
+IMGUI_IMPL_API void     ImGui_ImplGLUT_MouseFunc(int button, int state, int x, int y);      // ~ MouseButtonFunc
+IMGUI_IMPL_API void     ImGui_ImplGLUT_MouseWheelFunc(int button, int dir, int x, int y);   // ~ MouseWheelFunc
+IMGUI_IMPL_API void     ImGui_ImplGLUT_KeyboardFunc(unsigned char c, int x, int y);         // ~ CharPressedFunc
+IMGUI_IMPL_API void     ImGui_ImplGLUT_KeyboardUpFunc(unsigned char c, int x, int y);       // ~ CharReleasedFunc
+IMGUI_IMPL_API void     ImGui_ImplGLUT_SpecialFunc(int key, int x, int y);                  // ~ KeyPressedFunc
+IMGUI_IMPL_API void     ImGui_ImplGLUT_SpecialUpFunc(int key, int x, int y);                // ~ KeyReleasedFunc
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_metal.h

@@ -0,0 +1,79 @@
+// dear imgui: Renderer Backend for Metal
+// This needs to be used along with a Platform Backend (e.g. OSX)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'MTLTexture' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+//-----------------------------------------------------------------------------
+// ObjC API
+//-----------------------------------------------------------------------------
+
+#ifdef __OBJC__
+
+@class MTLRenderPassDescriptor;
+@protocol MTLDevice, MTLCommandBuffer, MTLRenderCommandEncoder;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool ImGui_ImplMetal_Init(id<MTLDevice> device);
+IMGUI_IMPL_API void ImGui_ImplMetal_Shutdown();
+IMGUI_IMPL_API void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor* renderPassDescriptor);
+IMGUI_IMPL_API void ImGui_ImplMetal_RenderDrawData(ImDrawData* drawData,
+                                                   id<MTLCommandBuffer> commandBuffer,
+                                                   id<MTLRenderCommandEncoder> commandEncoder);
+
+// Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device);
+IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void ImGui_ImplMetal_UpdateTexture(ImTextureData* tex);
+
+#endif
+
+//-----------------------------------------------------------------------------
+// C++ API
+//-----------------------------------------------------------------------------
+
+// Enable Metal C++ binding support with '#define IMGUI_IMPL_METAL_CPP' in your imconfig.h file
+// More info about using Metal from C++: https://developer.apple.com/metal/cpp/
+
+#ifdef IMGUI_IMPL_METAL_CPP
+#include <Metal/Metal.hpp>
+#ifndef __OBJC__
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool ImGui_ImplMetal_Init(MTL::Device* device);
+IMGUI_IMPL_API void ImGui_ImplMetal_Shutdown();
+IMGUI_IMPL_API void ImGui_ImplMetal_NewFrame(MTL::RenderPassDescriptor* renderPassDescriptor);
+IMGUI_IMPL_API void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data,
+                                                   MTL::CommandBuffer* commandBuffer,
+                                                   MTL::RenderCommandEncoder* commandEncoder);
+
+// Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool ImGui_ImplMetal_CreateDeviceObjects(MTL::Device* device);
+IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void ImGui_ImplMetal_UpdateTexture(ImTextureData* tex);
+
+#endif
+#endif
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_metal.mm

@@ -0,0 +1,812 @@
+// dear imgui: Renderer Backend for Metal
+// This needs to be used along with a Platform Backend (e.g. OSX)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'MTLTexture' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2025-XX-XX: Metal: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
+//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplMetal_CreateFontsTexture() and ImGui_ImplMetal_DestroyFontsTexture().
+//  2025-02-03: Metal: Crash fix. (#8367)
+//  2025-01-08: Metal: Fixed memory leaks when using metal-cpp (#8276, #8166) or when using multiple contexts (#7419).
+//  2022-08-23: Metal: Update deprecated property 'sampleCount'->'rasterSampleCount'.
+//  2022-07-05: Metal: Add dispatch synchronization.
+//  2022-06-30: Metal: Use __bridge for ARC based systems.
+//  2022-06-01: Metal: Fixed null dereference on exit inside command buffer completion handler.
+//  2022-04-27: Misc: Store backend data in a per-context struct, allowing to use this backend with multiple contexts.
+//  2022-01-03: Metal: Ignore ImDrawCmd where ElemCount == 0 (very rare but can technically be manufactured by user code).
+//  2021-12-30: Metal: Added Metal C++ support. Enable with '#define IMGUI_IMPL_METAL_CPP' in your imconfig.h file.
+//  2021-08-24: Metal: Fixed a crash when clipping rect larger than framebuffer is submitted. (#4464)
+//  2021-05-19: Metal: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
+//  2021-02-18: Metal: Change blending equation to preserve alpha in output buffer.
+//  2021-01-25: Metal: Fixed texture storage mode when building on Mac Catalyst.
+//  2019-05-29: Metal: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
+//  2019-04-30: Metal: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
+//  2019-02-11: Metal: Projecting clipping rectangles correctly using draw_data->FramebufferScale to allow multi-viewports for retina display.
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
+//  2018-07-05: Metal: Added new Metal backend implementation.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_metal.h"
+#import <time.h>
+#import <Metal/Metal.h>
+
+// Forward Declarations
+static void ImGui_ImplMetal_InitMultiViewportSupport();
+static void ImGui_ImplMetal_ShutdownMultiViewportSupport();
+static void ImGui_ImplMetal_CreateDeviceObjectsForPlatformWindows();
+static void ImGui_ImplMetal_InvalidateDeviceObjectsForPlatformWindows();
+
+#pragma mark - Support classes
+
+// A wrapper around a MTLBuffer object that knows the last time it was reused
+@interface MetalBuffer : NSObject
+@property (nonatomic, strong) id<MTLBuffer> buffer;
+@property (nonatomic, assign) double        lastReuseTime;
+- (instancetype)initWithBuffer:(id<MTLBuffer>)buffer;
+@end
+
+// An object that encapsulates the data necessary to uniquely identify a
+// render pipeline state. These are used as cache keys.
+@interface FramebufferDescriptor : NSObject<NSCopying>
+@property (nonatomic, assign) unsigned long  sampleCount;
+@property (nonatomic, assign) MTLPixelFormat colorPixelFormat;
+@property (nonatomic, assign) MTLPixelFormat depthPixelFormat;
+@property (nonatomic, assign) MTLPixelFormat stencilPixelFormat;
+- (instancetype)initWithRenderPassDescriptor:(MTLRenderPassDescriptor*)renderPassDescriptor;
+@end
+
+@interface MetalTexture : NSObject
+@property (nonatomic, strong) id<MTLTexture> metalTexture;
+- (instancetype)initWithTexture:(id<MTLTexture>)metalTexture;
+@end
+
+// A singleton that stores long-lived objects that are needed by the Metal
+// renderer backend. Stores the render pipeline state cache and the default
+// font texture, and manages the reusable buffer cache.
+@interface MetalContext : NSObject
+@property (nonatomic, strong) id<MTLDevice>                 device;
+@property (nonatomic, strong) id<MTLDepthStencilState>      depthStencilState;
+@property (nonatomic, strong) FramebufferDescriptor*        framebufferDescriptor; // framebuffer descriptor for current frame; transient
+@property (nonatomic, strong) NSMutableDictionary*          renderPipelineStateCache; // pipeline cache; keyed on framebuffer descriptors
+@property (nonatomic, strong) NSMutableArray<MetalBuffer*>* bufferCache;
+@property (nonatomic, assign) double                        lastBufferCachePurge;
+- (MetalBuffer*)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device;
+- (id<MTLRenderPipelineState>)renderPipelineStateForFramebufferDescriptor:(FramebufferDescriptor*)descriptor device:(id<MTLDevice>)device;
+@end
+
+struct ImGui_ImplMetal_Data
+{
+    MetalContext*               SharedMetalContext;
+
+    ImGui_ImplMetal_Data()      { memset((void*)this, 0, sizeof(*this)); }
+};
+
+static ImGui_ImplMetal_Data*    ImGui_ImplMetal_GetBackendData()    { return ImGui::GetCurrentContext() ? (ImGui_ImplMetal_Data*)ImGui::GetIO().BackendRendererUserData : nullptr; }
+static void                     ImGui_ImplMetal_DestroyBackendData(){ IM_DELETE(ImGui_ImplMetal_GetBackendData()); }
+
+static inline CFTimeInterval    GetMachAbsoluteTimeInSeconds()      { return (CFTimeInterval)(double)(clock_gettime_nsec_np(CLOCK_UPTIME_RAW) / 1e9); }
+
+#ifdef IMGUI_IMPL_METAL_CPP
+
+#pragma mark - Dear ImGui Metal C++ Backend API
+
+bool ImGui_ImplMetal_Init(MTL::Device* device)
+{
+    return ImGui_ImplMetal_Init((__bridge id<MTLDevice>)(device));
+}
+
+void ImGui_ImplMetal_NewFrame(MTL::RenderPassDescriptor* renderPassDescriptor)
+{
+    ImGui_ImplMetal_NewFrame((__bridge MTLRenderPassDescriptor*)(renderPassDescriptor));
+}
+
+void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data,
+                                    MTL::CommandBuffer* commandBuffer,
+                                    MTL::RenderCommandEncoder* commandEncoder)
+{
+    ImGui_ImplMetal_RenderDrawData(draw_data,
+                                   (__bridge id<MTLCommandBuffer>)(commandBuffer),
+                                   (__bridge id<MTLRenderCommandEncoder>)(commandEncoder));
+
+}
+
+bool ImGui_ImplMetal_CreateDeviceObjects(MTL::Device* device)
+{
+    return ImGui_ImplMetal_CreateDeviceObjects((__bridge id<MTLDevice>)(device));
+}
+
+#endif // #ifdef IMGUI_IMPL_METAL_CPP
+
+#pragma mark - Dear ImGui Metal Backend API
+
+bool ImGui_ImplMetal_Init(id<MTLDevice> device)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    ImGui_ImplMetal_Data* bd = IM_NEW(ImGui_ImplMetal_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_metal";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
+
+    bd->SharedMetalContext = [[MetalContext alloc] init];
+    bd->SharedMetalContext.device = device;
+
+    ImGui_ImplMetal_InitMultiViewportSupport();
+
+    return true;
+}
+
+void ImGui_ImplMetal_Shutdown()
+{
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    IM_UNUSED(bd);
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplMetal_ShutdownMultiViewportSupport();
+    ImGui_ImplMetal_DestroyDeviceObjects();
+    ImGui_ImplMetal_DestroyBackendData();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    platform_io.ClearRendererHandlers();
+}
+
+void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor* renderPassDescriptor)
+{
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    IM_ASSERT(bd != nil && "Context or backend not initialized! Did you call ImGui_ImplMetal_Init()?");
+#ifdef IMGUI_IMPL_METAL_CPP
+    bd->SharedMetalContext.framebufferDescriptor = [[[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor]autorelease];
+#else
+    bd->SharedMetalContext.framebufferDescriptor = [[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor];
+#endif
+    if (bd->SharedMetalContext.depthStencilState == nil)
+        ImGui_ImplMetal_CreateDeviceObjects(bd->SharedMetalContext.device);
+}
+
+static void ImGui_ImplMetal_SetupRenderState(ImDrawData* draw_data, id<MTLCommandBuffer> commandBuffer,
+    id<MTLRenderCommandEncoder> commandEncoder, id<MTLRenderPipelineState> renderPipelineState,
+    MetalBuffer* vertexBuffer, size_t vertexBufferOffset)
+{
+    IM_UNUSED(commandBuffer);
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    [commandEncoder setCullMode:MTLCullModeNone];
+    [commandEncoder setDepthStencilState:bd->SharedMetalContext.depthStencilState];
+
+    // Setup viewport, orthographic projection matrix
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to
+    // draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
+    MTLViewport viewport =
+    {
+        .originX = 0.0,
+        .originY = 0.0,
+        .width = (double)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x),
+        .height = (double)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y),
+        .znear = 0.0,
+        .zfar = 1.0
+    };
+    [commandEncoder setViewport:viewport];
+
+    float L = draw_data->DisplayPos.x;
+    float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
+    float T = draw_data->DisplayPos.y;
+    float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
+    float N = (float)viewport.znear;
+    float F = (float)viewport.zfar;
+    const float ortho_projection[4][4] =
+    {
+        { 2.0f/(R-L),   0.0f,           0.0f,   0.0f },
+        { 0.0f,         2.0f/(T-B),     0.0f,   0.0f },
+        { 0.0f,         0.0f,        1/(F-N),   0.0f },
+        { (R+L)/(L-R),  (T+B)/(B-T), N/(F-N),   1.0f },
+    };
+    [commandEncoder setVertexBytes:&ortho_projection length:sizeof(ortho_projection) atIndex:1];
+
+    [commandEncoder setRenderPipelineState:renderPipelineState];
+
+    [commandEncoder setVertexBuffer:vertexBuffer.buffer offset:0 atIndex:0];
+    [commandEncoder setVertexBufferOffset:vertexBufferOffset atIndex:0];
+}
+
+// Metal Render function.
+void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer> commandBuffer, id<MTLRenderCommandEncoder> commandEncoder)
+{
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    MetalContext* ctx = bd->SharedMetalContext;
+
+    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
+    int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
+    if (fb_width <= 0 || fb_height <= 0 || draw_data->CmdLists.Size == 0)
+        return;
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplMetal_UpdateTexture(tex);
+
+    // Try to retrieve a render pipeline state that is compatible with the framebuffer config for this frame
+    // The hit rate for this cache should be very near 100%.
+    id<MTLRenderPipelineState> renderPipelineState = ctx.renderPipelineStateCache[ctx.framebufferDescriptor];
+    if (renderPipelineState == nil)
+    {
+        // No luck; make a new render pipeline state
+        renderPipelineState = [ctx renderPipelineStateForFramebufferDescriptor:ctx.framebufferDescriptor device:commandBuffer.device];
+
+        // Cache render pipeline state for later reuse
+        ctx.renderPipelineStateCache[ctx.framebufferDescriptor] = renderPipelineState;
+    }
+
+    size_t vertexBufferLength = (size_t)draw_data->TotalVtxCount * sizeof(ImDrawVert);
+    size_t indexBufferLength = (size_t)draw_data->TotalIdxCount * sizeof(ImDrawIdx);
+    MetalBuffer* vertexBuffer = [ctx dequeueReusableBufferOfLength:vertexBufferLength device:commandBuffer.device];
+    MetalBuffer* indexBuffer = [ctx dequeueReusableBufferOfLength:indexBufferLength device:commandBuffer.device];
+
+    ImGui_ImplMetal_SetupRenderState(draw_data, commandBuffer, commandEncoder, renderPipelineState, vertexBuffer, 0);
+
+    // Will project scissor/clipping rectangles into framebuffer space
+    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
+    ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
+
+    // Render command lists
+    size_t vertexBufferOffset = 0;
+    size_t indexBufferOffset = 0;
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        memcpy((char*)vertexBuffer.buffer.contents + vertexBufferOffset, draw_list->VtxBuffer.Data, (size_t)draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
+        memcpy((char*)indexBuffer.buffer.contents + indexBufferOffset, draw_list->IdxBuffer.Data, (size_t)draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
+
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplMetal_SetupRenderState(draw_data, commandBuffer, commandEncoder, renderPipelineState, vertexBuffer, vertexBufferOffset);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
+                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+
+                // Clamp to viewport as setScissorRect() won't accept values that are off bounds
+                if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
+                if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
+                if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
+                if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+                if (pcmd->ElemCount == 0) // drawIndexedPrimitives() validation doesn't accept this
+                    continue;
+
+                // Apply scissor/clipping rectangle
+                MTLScissorRect scissorRect =
+                {
+                    .x = NSUInteger(clip_min.x),
+                    .y = NSUInteger(clip_min.y),
+                    .width = NSUInteger(clip_max.x - clip_min.x),
+                    .height = NSUInteger(clip_max.y - clip_min.y)
+                };
+                [commandEncoder setScissorRect:scissorRect];
+
+                // Bind texture, Draw
+                if (ImTextureID tex_id = pcmd->GetTexID())
+                    [commandEncoder setFragmentTexture:(__bridge id<MTLTexture>)(void*)(intptr_t)(tex_id) atIndex:0];
+
+                [commandEncoder setVertexBufferOffset:(vertexBufferOffset + pcmd->VtxOffset * sizeof(ImDrawVert)) atIndex:0];
+                [commandEncoder drawIndexedPrimitives:MTLPrimitiveTypeTriangle
+                                           indexCount:pcmd->ElemCount
+                                            indexType:sizeof(ImDrawIdx) == 2 ? MTLIndexTypeUInt16 : MTLIndexTypeUInt32
+                                          indexBuffer:indexBuffer.buffer
+                                    indexBufferOffset:indexBufferOffset + pcmd->IdxOffset * sizeof(ImDrawIdx)];
+            }
+        }
+
+        vertexBufferOffset += (size_t)draw_list->VtxBuffer.Size * sizeof(ImDrawVert);
+        indexBufferOffset += (size_t)draw_list->IdxBuffer.Size * sizeof(ImDrawIdx);
+    }
+
+    MetalContext* sharedMetalContext = bd->SharedMetalContext;
+    [commandBuffer addCompletedHandler:^(id<MTLCommandBuffer>)
+    {
+        dispatch_async(dispatch_get_main_queue(), ^{
+            @synchronized(sharedMetalContext.bufferCache)
+            {
+                [sharedMetalContext.bufferCache addObject:vertexBuffer];
+                [sharedMetalContext.bufferCache addObject:indexBuffer];
+            }
+        });
+    }];
+}
+
+static void ImGui_ImplMetal_DestroyTexture(ImTextureData* tex)
+{
+    if (MetalTexture* backend_tex = (__bridge_transfer MetalTexture*)(tex->BackendUserData))
+    {
+        IM_ASSERT(backend_tex.metalTexture == (__bridge id<MTLTexture>)(void*)(intptr_t)tex->TexID);
+        backend_tex.metalTexture = nil;
+
+        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->BackendUserData = nullptr;
+    }
+    tex->SetStatus(ImTextureStatus_Destroyed);
+}
+
+void ImGui_ImplMetal_UpdateTexture(ImTextureData* tex)
+{
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+
+        // We are retrieving and uploading the font atlas as a 4-channels RGBA texture here.
+        // In theory we could call GetTexDataAsAlpha8() and upload a 1-channel texture to save on memory access bandwidth.
+        // However, using a shader designed for 1-channel texture would make it less obvious to use the ImTextureID facility to render users own textures.
+        // You can make that change in your implementation.
+        MTLTextureDescriptor* textureDescriptor = [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatRGBA8Unorm
+                                                                                                     width:(NSUInteger)tex->Width
+                                                                                                    height:(NSUInteger)tex->Height
+                                                                                                 mipmapped:NO];
+        textureDescriptor.usage = MTLTextureUsageShaderRead;
+    #if TARGET_OS_OSX || TARGET_OS_MACCATALYST
+        textureDescriptor.storageMode = MTLStorageModeManaged;
+    #else
+        textureDescriptor.storageMode = MTLStorageModeShared;
+    #endif
+        id <MTLTexture> texture = [bd->SharedMetalContext.device newTextureWithDescriptor:textureDescriptor];
+        [texture replaceRegion:MTLRegionMake2D(0, 0, (NSUInteger)tex->Width, (NSUInteger)tex->Height) mipmapLevel:0 withBytes:tex->Pixels bytesPerRow:(NSUInteger)tex->Width * 4];
+        MetalTexture* backend_tex = [[MetalTexture alloc] initWithTexture:texture];
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)texture);
+        tex->SetStatus(ImTextureStatus_OK);
+        tex->BackendUserData = (__bridge_retained void*)(backend_tex);
+    }
+    else if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Update selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
+        MetalTexture* backend_tex = (__bridge MetalTexture*)(tex->BackendUserData);
+        for (ImTextureRect& r : tex->Updates)
+        {
+            [backend_tex.metalTexture replaceRegion:MTLRegionMake2D((NSUInteger)r.x, (NSUInteger)r.y, (NSUInteger)r.w, (NSUInteger)r.h)
+                                        mipmapLevel:0
+                                          withBytes:tex->GetPixelsAt(r.x, r.y)
+                                        bytesPerRow:(NSUInteger)tex->Width * 4];
+        }
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
+    {
+        ImGui_ImplMetal_DestroyTexture(tex);
+    }
+}
+
+bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device)
+{
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    MTLDepthStencilDescriptor* depthStencilDescriptor = [[MTLDepthStencilDescriptor alloc] init];
+    depthStencilDescriptor.depthWriteEnabled = NO;
+    depthStencilDescriptor.depthCompareFunction = MTLCompareFunctionAlways;
+    bd->SharedMetalContext.depthStencilState = [device newDepthStencilStateWithDescriptor:depthStencilDescriptor];
+    ImGui_ImplMetal_CreateDeviceObjectsForPlatformWindows();
+#ifdef IMGUI_IMPL_METAL_CPP
+    [depthStencilDescriptor release];
+#endif
+
+    return true;
+}
+
+void ImGui_ImplMetal_DestroyDeviceObjects()
+{
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+
+    // Destroy all textures
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+            ImGui_ImplMetal_DestroyTexture(tex);
+
+    ImGui_ImplMetal_InvalidateDeviceObjectsForPlatformWindows();
+    [bd->SharedMetalContext.renderPipelineStateCache removeAllObjects];
+}
+
+#pragma mark - Multi-viewport support
+
+#import <QuartzCore/CAMetalLayer.h>
+
+#if TARGET_OS_OSX
+#import <Cocoa/Cocoa.h>
+#endif
+
+//--------------------------------------------------------------------------------------------------------
+// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
+// This is an _advanced_ and _optional_ feature, allowing the back-end to create and handle multiple viewports simultaneously.
+// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
+//--------------------------------------------------------------------------------------------------------
+
+struct ImGuiViewportDataMetal
+{
+    CAMetalLayer*               MetalLayer;
+    id<MTLCommandQueue>         CommandQueue;
+    MTLRenderPassDescriptor*    RenderPassDescriptor;
+    void*                       Handle = nullptr;
+    bool                        FirstFrame = true;
+};
+
+static void ImGui_ImplMetal_CreateWindow(ImGuiViewport* viewport)
+{
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    ImGuiViewportDataMetal* data = IM_NEW(ImGuiViewportDataMetal)();
+    viewport->RendererUserData = data;
+
+    // PlatformHandleRaw should always be a NSWindow*, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL_Window*).
+    // Some back-ends will leave PlatformHandleRaw == 0, in which case we assume PlatformHandle will contain the NSWindow*.
+    void* handle = viewport->PlatformHandleRaw ? viewport->PlatformHandleRaw : viewport->PlatformHandle;
+    IM_ASSERT(handle != nullptr);
+
+    id<MTLDevice> device = bd->SharedMetalContext.device;
+    CAMetalLayer* layer = [CAMetalLayer layer];
+    layer.device = device;
+    layer.framebufferOnly = YES;
+    layer.pixelFormat = bd->SharedMetalContext.framebufferDescriptor.colorPixelFormat;
+#if TARGET_OS_OSX
+    NSWindow* window = (__bridge NSWindow*)handle;
+    NSView* view = window.contentView;
+    view.layer = layer;
+    view.wantsLayer = YES;
+#endif
+    data->MetalLayer = layer;
+    data->CommandQueue = [device newCommandQueue];
+    data->RenderPassDescriptor = [[MTLRenderPassDescriptor alloc] init];
+    data->Handle = handle;
+}
+
+static void ImGui_ImplMetal_DestroyWindow(ImGuiViewport* viewport)
+{
+    // The main viewport (owned by the application) will always have RendererUserData == 0 since we didn't create the data for it.
+    if (ImGuiViewportDataMetal* data = (ImGuiViewportDataMetal*)viewport->RendererUserData)
+        IM_DELETE(data);
+    viewport->RendererUserData = nullptr;
+}
+
+inline static CGSize MakeScaledSize(CGSize size, CGFloat scale)
+{
+    return CGSizeMake(size.width * scale, size.height * scale);
+}
+
+static void ImGui_ImplMetal_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
+{
+    ImGuiViewportDataMetal* data = (ImGuiViewportDataMetal*)viewport->RendererUserData;
+    data->MetalLayer.drawableSize = MakeScaledSize(CGSizeMake(size.x, size.y), viewport->DpiScale);
+}
+
+static void ImGui_ImplMetal_RenderWindow(ImGuiViewport* viewport, void*)
+{
+    ImGuiViewportDataMetal* data = (ImGuiViewportDataMetal*)viewport->RendererUserData;
+
+#if TARGET_OS_OSX
+    void* handle = viewport->PlatformHandleRaw ? viewport->PlatformHandleRaw : viewport->PlatformHandle;
+    NSWindow* window = (__bridge NSWindow*)handle;
+
+    // Always render the first frame, regardless of occlusionState, to avoid an initial flicker
+    if ((window.occlusionState & NSWindowOcclusionStateVisible) == 0 && !data->FirstFrame)
+    {
+        // Do not render windows which are completely occluded. Calling -[CAMetalLayer nextDrawable] will hang for
+        // approximately 1 second if the Metal layer is completely occluded.
+        return;
+    }
+    data->FirstFrame = false;
+
+    float fb_scale = (float)window.backingScaleFactor;
+    if (data->MetalLayer.contentsScale != fb_scale)
+    {
+        data->MetalLayer.contentsScale = fb_scale;
+        data->MetalLayer.drawableSize = MakeScaledSize(window.frame.size, fb_scale);
+    }
+#endif
+
+    id <CAMetalDrawable> drawable = [data->MetalLayer nextDrawable];
+    if (drawable == nil)
+        return;
+
+    MTLRenderPassDescriptor* renderPassDescriptor = data->RenderPassDescriptor;
+    renderPassDescriptor.colorAttachments[0].texture = drawable.texture;
+    renderPassDescriptor.colorAttachments[0].clearColor = MTLClearColorMake(0, 0, 0, 0);
+    if ((viewport->Flags & ImGuiViewportFlags_NoRendererClear) == 0)
+        renderPassDescriptor.colorAttachments[0].loadAction = MTLLoadActionClear;
+
+    id <MTLCommandBuffer> commandBuffer = [data->CommandQueue commandBuffer];
+    id <MTLRenderCommandEncoder> renderEncoder = [commandBuffer renderCommandEncoderWithDescriptor:renderPassDescriptor];
+    ImGui_ImplMetal_RenderDrawData(viewport->DrawData, commandBuffer, renderEncoder);
+    [renderEncoder endEncoding];
+
+    [commandBuffer presentDrawable:drawable];
+    [commandBuffer commit];
+}
+
+static void ImGui_ImplMetal_InitMultiViewportSupport()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_CreateWindow = ImGui_ImplMetal_CreateWindow;
+    platform_io.Renderer_DestroyWindow = ImGui_ImplMetal_DestroyWindow;
+    platform_io.Renderer_SetWindowSize = ImGui_ImplMetal_SetWindowSize;
+    platform_io.Renderer_RenderWindow = ImGui_ImplMetal_RenderWindow;
+}
+
+static void ImGui_ImplMetal_ShutdownMultiViewportSupport()
+{
+    ImGui::DestroyPlatformWindows();
+}
+
+static void ImGui_ImplMetal_CreateDeviceObjectsForPlatformWindows()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    for (int i = 1; i < platform_io.Viewports.Size; i++)
+        if (!platform_io.Viewports[i]->RendererUserData)
+            ImGui_ImplMetal_CreateWindow(platform_io.Viewports[i]);
+}
+
+static void ImGui_ImplMetal_InvalidateDeviceObjectsForPlatformWindows()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    for (int i = 1; i < platform_io.Viewports.Size; i++)
+        if (platform_io.Viewports[i]->RendererUserData)
+            ImGui_ImplMetal_DestroyWindow(platform_io.Viewports[i]);
+}
+
+#pragma mark - MetalBuffer implementation
+
+@implementation MetalBuffer
+- (instancetype)initWithBuffer:(id<MTLBuffer>)buffer
+{
+    if ((self = [super init]))
+    {
+        _buffer = buffer;
+        _lastReuseTime = GetMachAbsoluteTimeInSeconds();
+    }
+    return self;
+}
+@end
+
+#pragma mark - FramebufferDescriptor implementation
+
+@implementation FramebufferDescriptor
+- (instancetype)initWithRenderPassDescriptor:(MTLRenderPassDescriptor*)renderPassDescriptor
+{
+    if ((self = [super init]))
+    {
+        _sampleCount = renderPassDescriptor.colorAttachments[0].texture.sampleCount;
+        _colorPixelFormat = renderPassDescriptor.colorAttachments[0].texture.pixelFormat;
+        _depthPixelFormat = renderPassDescriptor.depthAttachment.texture.pixelFormat;
+        _stencilPixelFormat = renderPassDescriptor.stencilAttachment.texture.pixelFormat;
+    }
+    return self;
+}
+
+- (nonnull id)copyWithZone:(nullable NSZone*)zone
+{
+    FramebufferDescriptor* copy = [[FramebufferDescriptor allocWithZone:zone] init];
+    copy.sampleCount = self.sampleCount;
+    copy.colorPixelFormat = self.colorPixelFormat;
+    copy.depthPixelFormat = self.depthPixelFormat;
+    copy.stencilPixelFormat = self.stencilPixelFormat;
+    return copy;
+}
+
+- (NSUInteger)hash
+{
+    NSUInteger sc = _sampleCount & 0x3;
+    NSUInteger cf = _colorPixelFormat & 0x3FF;
+    NSUInteger df = _depthPixelFormat & 0x3FF;
+    NSUInteger sf = _stencilPixelFormat & 0x3FF;
+    NSUInteger hash = (sf << 22) | (df << 12) | (cf << 2) | sc;
+    return hash;
+}
+
+- (BOOL)isEqual:(id)object
+{
+    FramebufferDescriptor* other = object;
+    if (![other isKindOfClass:[FramebufferDescriptor class]])
+        return NO;
+    return other.sampleCount == self.sampleCount      &&
+    other.colorPixelFormat   == self.colorPixelFormat &&
+    other.depthPixelFormat   == self.depthPixelFormat &&
+    other.stencilPixelFormat == self.stencilPixelFormat;
+}
+
+@end
+
+#pragma mark - MetalTexture implementation
+
+@implementation MetalTexture
+- (instancetype)initWithTexture:(id<MTLTexture>)metalTexture
+{
+    if ((self = [super init]))
+        self.metalTexture = metalTexture;
+    return self;
+}
+
+@end
+
+#pragma mark - MetalContext implementation
+
+@implementation MetalContext
+- (instancetype)init
+{
+    if ((self = [super init]))
+    {
+        self.renderPipelineStateCache = [NSMutableDictionary dictionary];
+        self.bufferCache = [NSMutableArray array];
+        _lastBufferCachePurge = GetMachAbsoluteTimeInSeconds();
+    }
+    return self;
+}
+
+- (MetalBuffer*)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device
+{
+    uint64_t now = GetMachAbsoluteTimeInSeconds();
+
+    @synchronized(self.bufferCache)
+    {
+        // Purge old buffers that haven't been useful for a while
+        if (now - self.lastBufferCachePurge > 1.0)
+        {
+            NSMutableArray* survivors = [NSMutableArray array];
+            for (MetalBuffer* candidate in self.bufferCache)
+                if (candidate.lastReuseTime > self.lastBufferCachePurge)
+                    [survivors addObject:candidate];
+            self.bufferCache = [survivors mutableCopy];
+            self.lastBufferCachePurge = now;
+        }
+
+        // See if we have a buffer we can reuse
+        MetalBuffer* bestCandidate = nil;
+        for (MetalBuffer* candidate in self.bufferCache)
+            if (candidate.buffer.length >= length && (bestCandidate == nil || bestCandidate.lastReuseTime > candidate.lastReuseTime))
+                bestCandidate = candidate;
+
+        if (bestCandidate != nil)
+        {
+            [self.bufferCache removeObject:bestCandidate];
+            bestCandidate.lastReuseTime = now;
+            return bestCandidate;
+        }
+    }
+
+    // No luck; make a new buffer
+    id<MTLBuffer> backing = [device newBufferWithLength:length options:MTLResourceStorageModeShared];
+    return [[MetalBuffer alloc] initWithBuffer:backing];
+}
+
+// Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
+- (id<MTLRenderPipelineState>)renderPipelineStateForFramebufferDescriptor:(FramebufferDescriptor*)descriptor device:(id<MTLDevice>)device
+{
+    NSError* error = nil;
+
+    NSString* shaderSource = @""
+    "#include <metal_stdlib>\n"
+    "using namespace metal;\n"
+    "\n"
+    "struct Uniforms {\n"
+    "    float4x4 projectionMatrix;\n"
+    "};\n"
+    "\n"
+    "struct VertexIn {\n"
+    "    float2 position  [[attribute(0)]];\n"
+    "    float2 texCoords [[attribute(1)]];\n"
+    "    uchar4 color     [[attribute(2)]];\n"
+    "};\n"
+    "\n"
+    "struct VertexOut {\n"
+    "    float4 position [[position]];\n"
+    "    float2 texCoords;\n"
+    "    float4 color;\n"
+    "};\n"
+    "\n"
+    "vertex VertexOut vertex_main(VertexIn in                 [[stage_in]],\n"
+    "                             constant Uniforms &uniforms [[buffer(1)]]) {\n"
+    "    VertexOut out;\n"
+    "    out.position = uniforms.projectionMatrix * float4(in.position, 0, 1);\n"
+    "    out.texCoords = in.texCoords;\n"
+    "    out.color = float4(in.color) / float4(255.0);\n"
+    "    return out;\n"
+    "}\n"
+    "\n"
+    "fragment half4 fragment_main(VertexOut in [[stage_in]],\n"
+    "                             texture2d<half, access::sample> texture [[texture(0)]]) {\n"
+    "    constexpr sampler linearSampler(coord::normalized, min_filter::linear, mag_filter::linear, mip_filter::linear);\n"
+    "    half4 texColor = texture.sample(linearSampler, in.texCoords);\n"
+    "    return half4(in.color) * texColor;\n"
+    "}\n";
+
+    id<MTLLibrary> library = [device newLibraryWithSource:shaderSource options:nil error:&error];
+    if (library == nil)
+    {
+        NSLog(@"Error: failed to create Metal library: %@", error);
+        return nil;
+    }
+
+    id<MTLFunction> vertexFunction = [library newFunctionWithName:@"vertex_main"];
+    id<MTLFunction> fragmentFunction = [library newFunctionWithName:@"fragment_main"];
+
+    if (vertexFunction == nil || fragmentFunction == nil)
+    {
+        NSLog(@"Error: failed to find Metal shader functions in library: %@", error);
+        return nil;
+    }
+
+    MTLVertexDescriptor* vertexDescriptor = [MTLVertexDescriptor vertexDescriptor];
+    vertexDescriptor.attributes[0].offset = offsetof(ImDrawVert, pos);
+    vertexDescriptor.attributes[0].format = MTLVertexFormatFloat2; // position
+    vertexDescriptor.attributes[0].bufferIndex = 0;
+    vertexDescriptor.attributes[1].offset = offsetof(ImDrawVert, uv);
+    vertexDescriptor.attributes[1].format = MTLVertexFormatFloat2; // texCoords
+    vertexDescriptor.attributes[1].bufferIndex = 0;
+    vertexDescriptor.attributes[2].offset = offsetof(ImDrawVert, col);
+    vertexDescriptor.attributes[2].format = MTLVertexFormatUChar4; // color
+    vertexDescriptor.attributes[2].bufferIndex = 0;
+    vertexDescriptor.layouts[0].stepRate = 1;
+    vertexDescriptor.layouts[0].stepFunction = MTLVertexStepFunctionPerVertex;
+    vertexDescriptor.layouts[0].stride = sizeof(ImDrawVert);
+
+    MTLRenderPipelineDescriptor* pipelineDescriptor = [[MTLRenderPipelineDescriptor alloc] init];
+    pipelineDescriptor.vertexFunction = vertexFunction;
+    pipelineDescriptor.fragmentFunction = fragmentFunction;
+    pipelineDescriptor.vertexDescriptor = vertexDescriptor;
+    pipelineDescriptor.rasterSampleCount = self.framebufferDescriptor.sampleCount;
+    pipelineDescriptor.colorAttachments[0].pixelFormat = self.framebufferDescriptor.colorPixelFormat;
+    pipelineDescriptor.colorAttachments[0].blendingEnabled = YES;
+    pipelineDescriptor.colorAttachments[0].rgbBlendOperation = MTLBlendOperationAdd;
+    pipelineDescriptor.colorAttachments[0].sourceRGBBlendFactor = MTLBlendFactorSourceAlpha;
+    pipelineDescriptor.colorAttachments[0].destinationRGBBlendFactor = MTLBlendFactorOneMinusSourceAlpha;
+    pipelineDescriptor.colorAttachments[0].alphaBlendOperation = MTLBlendOperationAdd;
+    pipelineDescriptor.colorAttachments[0].sourceAlphaBlendFactor = MTLBlendFactorOne;
+    pipelineDescriptor.colorAttachments[0].destinationAlphaBlendFactor = MTLBlendFactorOneMinusSourceAlpha;
+    pipelineDescriptor.depthAttachmentPixelFormat = self.framebufferDescriptor.depthPixelFormat;
+    pipelineDescriptor.stencilAttachmentPixelFormat = self.framebufferDescriptor.stencilPixelFormat;
+
+    id<MTLRenderPipelineState> renderPipelineState = [device newRenderPipelineStateWithDescriptor:pipelineDescriptor error:&error];
+    if (error != nil)
+        NSLog(@"Error: failed to create Metal pipeline state: %@", error);
+
+    return renderPipelineState;
+}
+
+@end
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_null.cpp

@@ -0,0 +1,102 @@
+// dear imgui: Null Platform+Renderer Backends
+// This is designed if you need to use a blind Dear Imgui context with no input and no output.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2025-11-17: Initial version.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_null.h"
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast                            // yes, they are more terse.
+#endif
+
+IMGUI_IMPL_API bool ImGui_ImplNull_Init()
+{
+    ImGui_ImplNullPlatform_Init();
+    ImGui_ImplNullRender_Init();
+    return true;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNull_Shutdown()
+{
+    ImGui_ImplNullRender_Shutdown();
+    ImGui_ImplNullPlatform_Shutdown();
+}
+
+IMGUI_IMPL_API void ImGui_ImplNull_NewFrame()
+{
+    ImGui_ImplNullPlatform_NewFrame();
+    ImGui_ImplNullRender_NewFrame();
+}
+
+IMGUI_IMPL_API bool ImGui_ImplNullPlatform_Init()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;
+    return true;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullPlatform_Shutdown()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendFlags &= ~ImGuiBackendFlags_HasMouseCursors;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullPlatform_NewFrame()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.DisplaySize = ImVec2(1920, 1080);
+    io.DeltaTime = 1.0f / 60.0f;
+}
+
+IMGUI_IMPL_API bool ImGui_ImplNullRender_Init()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;
+    return true;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullRender_Shutdown()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.BackendFlags &= ~ImGuiBackendFlags_RendererHasVtxOffset;
+    io.BackendFlags &= ~ImGuiBackendFlags_RendererHasTextures;
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullRender_NewFrame()
+{
+}
+
+static void ImGui_ImplNullRender_UpdateTexture(ImTextureData* tex)
+{
+    if (tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantDestroy)
+        tex->SetStatus(ImTextureStatus_OK);
+    if (tex->Status == ImTextureStatus_WantDestroy)
+    {
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->SetStatus(ImTextureStatus_Destroyed);
+    }
+}
+
+IMGUI_IMPL_API void ImGui_ImplNullRender_RenderDrawData(ImDrawData* draw_data)
+{
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplNullRender_UpdateTexture(tex);
+}
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_null.h

@@ -0,0 +1,34 @@
+// dear imgui: Null Platform+Renderer Backends
+// This is designed if you need to use a blind Dear Imgui context with no input and no output.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+
+// Null = NullPlatform + NullRender
+IMGUI_IMPL_API bool     ImGui_ImplNull_Init();
+IMGUI_IMPL_API void     ImGui_ImplNull_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplNull_NewFrame();
+
+// Null platform only (single screen, fixed timestep, no inputs)
+IMGUI_IMPL_API bool     ImGui_ImplNullPlatform_Init();
+IMGUI_IMPL_API void     ImGui_ImplNullPlatform_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplNullPlatform_NewFrame();
+
+// Null renderer only (no output)
+IMGUI_IMPL_API bool     ImGui_ImplNullRender_Init();
+IMGUI_IMPL_API void     ImGui_ImplNullRender_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplNullRender_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplNullRender_RenderDrawData(ImDrawData* draw_data);
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_opengl2.cpp

@@ -0,0 +1,391 @@
+// dear imgui: Renderer Backend for OpenGL2 (legacy OpenGL, fixed pipeline)
+// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+// Missing features or Issues:
+//  [ ] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
+// **Prefer using the code in imgui_impl_opengl3.cpp**
+// This code is mostly provided as a reference to learn how ImGui integration works, because it is shorter to read.
+// If your code is using GL3+ context or any semi modern OpenGL calls, using this is likely to make everything more
+// complicated, will require your code to reset every single OpenGL attributes to their initial state, and might
+// confuse your GPU driver.
+// The GL2 code is unable to reset attributes or even call e.g. "glUseProgram(0)" because they don't exist in that API.
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
+//  2025-07-15: OpenGL: Set GL_UNPACK_ALIGNMENT to 1 before updating textures. (#8802)
+//  2025-06-11: OpenGL: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplOpenGL2_CreateFontsTexture() and ImGui_ImplOpenGL2_DestroyFontsTexture().
+//  2024-10-07: OpenGL: Changed default texture sampler to Clamp instead of Repeat/Wrap.
+//  2024-06-28: OpenGL: ImGui_ImplOpenGL2_NewFrame() recreates font texture if it has been destroyed by ImGui_ImplOpenGL2_DestroyFontsTexture(). (#7748)
+//  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
+//  2021-12-08: OpenGL: Fixed mishandling of the ImDrawCmd::IdxOffset field! This is an old bug but it never had an effect until some internal rendering changes in 1.86.
+//  2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
+//  2021-05-19: OpenGL: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
+//  2021-01-03: OpenGL: Backup, setup and restore GL_SHADE_MODEL state, disable GL_STENCIL_TEST and disable GL_NORMAL_ARRAY client state to increase compatibility with legacy OpenGL applications.
+//  2020-01-23: OpenGL: Backup, setup and restore GL_TEXTURE_ENV to increase compatibility with legacy OpenGL applications.
+//  2019-04-30: OpenGL: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
+//  2019-02-11: OpenGL: Projecting clipping rectangles correctly using draw_data->FramebufferScale to allow multi-viewports for retina display.
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
+//  2018-08-03: OpenGL: Disabling/restoring GL_LIGHTING and GL_COLOR_MATERIAL to increase compatibility with legacy OpenGL applications.
+//  2018-06-08: Misc: Extracted imgui_impl_opengl2.cpp/.h away from the old combined GLFW/SDL+OpenGL2 examples.
+//  2018-06-08: OpenGL: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
+//  2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplOpenGL2_RenderDrawData() in the .h file so you can call it yourself.
+//  2017-09-01: OpenGL: Save and restore current polygon mode.
+//  2016-09-10: OpenGL: Uploading font texture as RGBA32 to increase compatibility with users shaders (not ideal).
+//  2016-09-05: OpenGL: Fixed save and restore of current scissor rectangle.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_opengl2.h"
+#include <stdint.h>     // intptr_t
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-macros"                      // warning: macro is not used
+#pragma clang diagnostic ignored "-Wnonportable-system-include-path"
+#endif
+
+// Include OpenGL header (without an OpenGL loader) requires a bit of fiddling
+#if defined(_WIN32) && !defined(APIENTRY)
+#define APIENTRY __stdcall                  // It is customary to use APIENTRY for OpenGL function pointer declarations on all platforms.  Additionally, the Windows OpenGL header needs APIENTRY.
+#endif
+#if defined(_WIN32) && !defined(WINGDIAPI)
+#define WINGDIAPI __declspec(dllimport)     // Some Windows OpenGL headers need this
+#endif
+#if defined(__APPLE__)
+#define GL_SILENCE_DEPRECATION
+#include <OpenGL/gl.h>
+#else
+#include <GL/gl.h>
+#endif
+
+// [Debugging]
+//#define IMGUI_IMPL_OPENGL_DEBUG
+#ifdef IMGUI_IMPL_OPENGL_DEBUG
+#include <stdio.h>
+#define GL_CALL(_CALL)      do { _CALL; GLenum gl_err = glGetError(); if (gl_err != 0) fprintf(stderr, "GL error 0x%x returned from '%s'.\n", gl_err, #_CALL); } while (0)  // Call with error check
+#else
+#define GL_CALL(_CALL)      _CALL   // Call without error check
+#endif
+
+// OpenGL data
+struct ImGui_ImplOpenGL2_Data
+{
+    ImGui_ImplOpenGL2_Data() { memset((void*)this, 0, sizeof(*this)); }
+};
+
+// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+static ImGui_ImplOpenGL2_Data* ImGui_ImplOpenGL2_GetBackendData()
+{
+    return ImGui::GetCurrentContext() ? (ImGui_ImplOpenGL2_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
+}
+
+// Forward Declarations
+static void ImGui_ImplOpenGL2_InitMultiViewportSupport();
+static void ImGui_ImplOpenGL2_ShutdownMultiViewportSupport();
+
+// Functions
+bool    ImGui_ImplOpenGL2_Init()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplOpenGL2_Data* bd = IM_NEW(ImGui_ImplOpenGL2_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_opengl2";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;       // We can honor ImGuiPlatformIO::Textures[] requests during render.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;      // We can create multi-viewports on the Renderer side (optional)
+
+    ImGui_ImplOpenGL2_InitMultiViewportSupport();
+
+    return true;
+}
+
+void    ImGui_ImplOpenGL2_Shutdown()
+{
+    ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplOpenGL2_ShutdownMultiViewportSupport();
+    ImGui_ImplOpenGL2_DestroyDeviceObjects();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
+void    ImGui_ImplOpenGL2_NewFrame()
+{
+    ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOpenGL2_Init()?");
+    IM_UNUSED(bd);
+}
+
+static void ImGui_ImplOpenGL2_SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height)
+{
+    // Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers, polygon fill.
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    //glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); // In order to composite our output buffer we need to preserve alpha
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_STENCIL_TEST);
+    glDisable(GL_LIGHTING);
+    glDisable(GL_COLOR_MATERIAL);
+    glEnable(GL_SCISSOR_TEST);
+    glEnableClientState(GL_VERTEX_ARRAY);
+    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+    glEnableClientState(GL_COLOR_ARRAY);
+    glDisableClientState(GL_NORMAL_ARRAY);
+    glEnable(GL_TEXTURE_2D);
+    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+    glShadeModel(GL_SMOOTH);
+    glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+
+    // If you are using this code with non-legacy OpenGL header/contexts (which you should not, prefer using imgui_impl_opengl3.cpp!!),
+    // you may need to backup/reset/restore other state, e.g. for current shader using the commented lines below.
+    // (DO NOT MODIFY THIS FILE! Add the code in your calling function)
+    //   GLint last_program;
+    //   glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
+    //   glUseProgram(0);
+    //   ImGui_ImplOpenGL2_RenderDrawData(...);
+    //   glUseProgram(last_program)
+    // There are potentially many more states you could need to clear/setup that we can't access from default headers.
+    // e.g. glBindBuffer(GL_ARRAY_BUFFER, 0), glDisable(GL_TEXTURE_CUBE_MAP).
+
+    // Setup viewport, orthographic projection matrix
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
+    GL_CALL(glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height));
+    glMatrixMode(GL_PROJECTION);
+    glPushMatrix();
+    glLoadIdentity();
+    glOrtho(draw_data->DisplayPos.x, draw_data->DisplayPos.x + draw_data->DisplaySize.x, draw_data->DisplayPos.y + draw_data->DisplaySize.y, draw_data->DisplayPos.y, -1.0f, +1.0f);
+    glMatrixMode(GL_MODELVIEW);
+    glPushMatrix();
+    glLoadIdentity();
+}
+
+// OpenGL2 Render function.
+// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly.
+// This is in order to be able to run within an OpenGL engine that doesn't do so.
+void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
+{
+    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
+    int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
+    if (fb_width == 0 || fb_height == 0)
+        return;
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplOpenGL2_UpdateTexture(tex);
+
+    // Backup GL state
+    GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
+    GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
+    GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
+    GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
+    GLint last_shade_model; glGetIntegerv(GL_SHADE_MODEL, &last_shade_model);
+    GLint last_tex_env_mode; glGetTexEnviv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, &last_tex_env_mode);
+    glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
+
+    // Setup desired GL state
+    ImGui_ImplOpenGL2_SetupRenderState(draw_data, fb_width, fb_height);
+
+    // Will project scissor/clipping rectangles into framebuffer space
+    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
+    ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
+
+    // Render command lists
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        const ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data;
+        const ImDrawIdx* idx_buffer = draw_list->IdxBuffer.Data;
+        glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + offsetof(ImDrawVert, pos)));
+        glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + offsetof(ImDrawVert, uv)));
+        glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + offsetof(ImDrawVert, col)));
+
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplOpenGL2_SetupRenderState(draw_data, fb_width, fb_height);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
+                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                // Apply scissor/clipping rectangle (Y is inverted in OpenGL)
+                glScissor((int)clip_min.x, (int)((float)fb_height - clip_max.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y));
+
+                // Bind texture, Draw
+                glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID());
+                glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer + pcmd->IdxOffset);
+            }
+        }
+    }
+
+    // Restore modified GL state
+    glDisableClientState(GL_COLOR_ARRAY);
+    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+    glDisableClientState(GL_VERTEX_ARRAY);
+    glBindTexture(GL_TEXTURE_2D, (GLuint)last_texture);
+    glMatrixMode(GL_MODELVIEW);
+    glPopMatrix();
+    glMatrixMode(GL_PROJECTION);
+    glPopMatrix();
+    glPopAttrib();
+    glPolygonMode(GL_FRONT, (GLenum)last_polygon_mode[0]); glPolygonMode(GL_BACK, (GLenum)last_polygon_mode[1]);
+    glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
+    glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);
+    glShadeModel(last_shade_model);
+    glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, last_tex_env_mode);
+}
+
+void ImGui_ImplOpenGL2_UpdateTexture(ImTextureData* tex)
+{
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == 0 && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+        const void* pixels = tex->GetPixels();
+        GLuint gl_texture_id = 0;
+
+        // Upload texture to graphics system
+        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+        GLint last_texture;
+        GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
+        GL_CALL(glGenTextures(1, &gl_texture_id));
+        GL_CALL(glBindTexture(GL_TEXTURE_2D, gl_texture_id));
+        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
+        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
+        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));
+        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));
+        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
+        GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
+        GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex->Width, tex->Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels));
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)gl_texture_id);
+        tex->SetStatus(ImTextureStatus_OK);
+
+        // Restore state
+        GL_CALL(glBindTexture(GL_TEXTURE_2D, last_texture));
+    }
+    else if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Update selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
+        GLint last_texture;
+        GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
+
+        GLuint gl_tex_id = (GLuint)(intptr_t)tex->TexID;
+        GL_CALL(glBindTexture(GL_TEXTURE_2D, gl_tex_id));
+        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->Width));
+        GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
+        for (ImTextureRect& r : tex->Updates)
+            GL_CALL(glTexSubImage2D(GL_TEXTURE_2D, 0, r.x, r.y, r.w, r.h, GL_RGBA, GL_UNSIGNED_BYTE, tex->GetPixelsAt(r.x, r.y)));
+        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
+        GL_CALL(glBindTexture(GL_TEXTURE_2D, last_texture)); // Restore state
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantDestroy)
+    {
+        GLuint gl_tex_id = (GLuint)(intptr_t)tex->TexID;
+        glDeleteTextures(1, &gl_tex_id);
+
+        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->SetStatus(ImTextureStatus_Destroyed);
+    }
+}
+
+bool    ImGui_ImplOpenGL2_CreateDeviceObjects()
+{
+    return true;
+}
+
+void    ImGui_ImplOpenGL2_DestroyDeviceObjects()
+{
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+        {
+            tex->SetStatus(ImTextureStatus_WantDestroy);
+            ImGui_ImplOpenGL2_UpdateTexture(tex);
+        }
+}
+
+
+//--------------------------------------------------------------------------------------------------------
+// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
+// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
+// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
+//--------------------------------------------------------------------------------------------------------
+
+static void ImGui_ImplOpenGL2_RenderWindow(ImGuiViewport* viewport, void*)
+{
+    if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
+    {
+        ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
+        glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
+        glClear(GL_COLOR_BUFFER_BIT);
+    }
+    ImGui_ImplOpenGL2_RenderDrawData(viewport->DrawData);
+}
+
+static void ImGui_ImplOpenGL2_InitMultiViewportSupport()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_RenderWindow = ImGui_ImplOpenGL2_RenderWindow;
+}
+
+static void ImGui_ImplOpenGL2_ShutdownMultiViewportSupport()
+{
+    ImGui::DestroyPlatformWindows();
+}
+
+//-----------------------------------------------------------------------------
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_opengl2.h

@@ -0,0 +1,44 @@
+// dear imgui: Renderer Backend for OpenGL2 (legacy OpenGL, fixed pipeline)
+// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+// Missing features or Issues:
+//  [ ] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
+// **Prefer using the code in imgui_impl_opengl3.cpp**
+// This code is mostly provided as a reference to learn how ImGui integration works, because it is shorter to read.
+// If your code is using GL3+ context or any semi modern OpenGL calls, using this is likely to make everything more
+// complicated, will require your code to reset every single OpenGL attributes to their initial state, and might
+// confuse your GPU driver.
+// The GL2 code is unable to reset attributes or even call e.g. "glUseProgram(0)" because they don't exist in that API.
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplOpenGL2_Init();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL2_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL2_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data);
+
+// Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool     ImGui_ImplOpenGL2_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL2_DestroyDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplOpenGL2_UpdateTexture(ImTextureData* tex);
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_opengl3.h

@@ -0,0 +1,69 @@
+// dear imgui: Renderer Backend for modern OpenGL with shaders / programmatic pipeline
+// - Desktop GL: 2.x 3.x 4.x
+// - Embedded GL: ES 2.0 (WebGL 1.0), ES 3.0 (WebGL 2.0)
+// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [x] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset) [Desktop OpenGL only!]
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// About WebGL/ES:
+// - You need to '#define IMGUI_IMPL_OPENGL_ES2' or '#define IMGUI_IMPL_OPENGL_ES3' to use WebGL or OpenGL ES.
+// - This is done automatically on iOS, Android and Emscripten targets.
+// - For other targets, the define needs to be visible from the imgui_impl_opengl3.cpp compilation unit. If unsure, define globally or in imconfig.h.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// About GLSL version:
+//  The 'glsl_version' initialization parameter should be nullptr (default) or a "#version XXX" string.
+//  On computer platform the GLSL version default to "#version 130". On OpenGL ES 3 platform it defaults to "#version 300 es"
+//  Only override if your GL version doesn't handle this GLSL version. See GLSL version table at the top of imgui_impl_opengl3.cpp.
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplOpenGL3_Init(const char* glsl_version = nullptr);
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data);
+
+// (Optional) Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool     ImGui_ImplOpenGL3_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex);
+
+// Configuration flags to add in your imconfig file:
+//#define IMGUI_IMPL_OPENGL_ES2     // Enable ES 2 (Auto-detected on Emscripten)
+//#define IMGUI_IMPL_OPENGL_ES3     // Enable ES 3 (Auto-detected on iOS/Android)
+
+// You can explicitly select GLES2 or GLES3 API by using one of the '#define IMGUI_IMPL_OPENGL_LOADER_XXX' in imconfig.h or compiler command-line.
+#if !defined(IMGUI_IMPL_OPENGL_ES2) \
+ && !defined(IMGUI_IMPL_OPENGL_ES3)
+
+// Try to detect GLES on matching platforms
+#if defined(__APPLE__)
+#include <TargetConditionals.h>
+#endif
+#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV)) || (defined(__ANDROID__))
+#define IMGUI_IMPL_OPENGL_ES3               // iOS, Android  -> GL ES 3, "#version 300 es"
+#elif defined(__EMSCRIPTEN__) || defined(__amigaos4__)
+#define IMGUI_IMPL_OPENGL_ES2               // Emscripten    -> GL ES 2, "#version 100"
+#else
+// Otherwise imgui_impl_opengl3_loader.h will be used.
+#endif
+
+#endif
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_opengl3_loader.h

@@ -0,0 +1,949 @@
+//-----------------------------------------------------------------------------
+// About imgui_impl_opengl3_loader.h:
+//
+// We embed our own OpenGL loader to not require user to provide their own or to have to use ours,
+// which proved to be endless problems for users.
+// Our loader is custom-generated, based on gl3w but automatically filtered to only include
+// enums/functions that we use in our imgui_impl_opengl3.cpp source file in order to be small.
+//
+// YOU SHOULD NOT NEED TO INCLUDE/USE THIS DIRECTLY. THIS IS USED BY imgui_impl_opengl3.cpp ONLY.
+// THE REST OF YOUR APP SHOULD USE A DIFFERENT GL LOADER: ANY GL LOADER OF YOUR CHOICE.
+//
+// IF YOU GET BUILD ERRORS IN THIS FILE (commonly macro redefinitions or function redefinitions):
+// IT LIKELY MEANS THAT YOU ARE BUILDING 'imgui_impl_opengl3.cpp' OR INCLUDING 'imgui_impl_opengl3_loader.h'
+// IN THE SAME COMPILATION UNIT AS ONE OF YOUR FILE WHICH IS USING A THIRD-PARTY OPENGL LOADER.
+// (e.g. COULD HAPPEN IF YOU ARE DOING A UNITY/JUMBO BUILD, OR INCLUDING .CPP FILES FROM OTHERS)
+// YOU SHOULD NOT BUILD BOTH IN THE SAME COMPILATION UNIT.
+// BUT IF YOU REALLY WANT TO, you can '#define IMGUI_IMPL_OPENGL_LOADER_CUSTOM' and imgui_impl_opengl3.cpp
+// WILL NOT BE USING OUR LOADER, AND INSTEAD EXPECT ANOTHER/YOUR LOADER TO BE AVAILABLE IN THE COMPILATION UNIT.
+//
+// Regenerate with:
+//   python3 gl3w_gen.py --output ../imgui/backends/imgui_impl_opengl3_loader.h --ref ../imgui/backends/imgui_impl_opengl3.cpp ./extra_symbols.txt
+//
+// More info:
+//   https://github.com/dearimgui/gl3w_stripped
+//   https://github.com/ocornut/imgui/issues/4445
+//-----------------------------------------------------------------------------
+
+/*
+ * This file was generated with gl3w_gen.py, part of imgl3w
+ * (hosted at https://github.com/dearimgui/gl3w_stripped)
+ *
+ * This is free and unencumbered software released into the public domain.
+ *
+ * Anyone is free to copy, modify, publish, use, compile, sell, or
+ * distribute this software, either in source code form or as a compiled
+ * binary, for any purpose, commercial or non-commercial, and by any
+ * means.
+ *
+ * In jurisdictions that recognize copyright laws, the author or authors
+ * of this software dedicate any and all copyright interest in the
+ * software to the public domain. We make this dedication for the benefit
+ * of the public at large and to the detriment of our heirs and
+ * successors. We intend this dedication to be an overt act of
+ * relinquishment in perpetuity of all present and future rights to this
+ * software under copyright law.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __gl3w_h_
+#define __gl3w_h_
+
+// Adapted from KHR/khrplatform.h to avoid including entire file.
+#ifndef __khrplatform_h_
+typedef          float         khronos_float_t;
+typedef signed   char          khronos_int8_t;
+typedef unsigned char          khronos_uint8_t;
+typedef signed   short int     khronos_int16_t;
+typedef unsigned short int     khronos_uint16_t;
+#ifdef _WIN64
+typedef signed   long long int khronos_intptr_t;
+typedef signed   long long int khronos_ssize_t;
+#else
+typedef signed   long  int     khronos_intptr_t;
+typedef signed   long  int     khronos_ssize_t;
+#endif
+
+#if defined(_MSC_VER) && !defined(__clang__)
+typedef signed   __int64       khronos_int64_t;
+typedef unsigned __int64       khronos_uint64_t;
+#elif (defined(__clang__) || defined(__GNUC__)) && (__cplusplus < 201100)
+#include <stdint.h>
+typedef          int64_t       khronos_int64_t;
+typedef          uint64_t      khronos_uint64_t;
+#else
+typedef signed   long long     khronos_int64_t;
+typedef unsigned long long     khronos_uint64_t;
+#endif
+#endif  // __khrplatform_h_
+
+#ifndef __gl_glcorearb_h_
+#define __gl_glcorearb_h_ 1
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+** Copyright 2013-2020 The Khronos Group Inc.
+** SPDX-License-Identifier: MIT
+**
+** This header is generated from the Khronos OpenGL / OpenGL ES XML
+** API Registry. The current version of the Registry, generator scripts
+** used to make the header, and the header can be found at
+**   https://github.com/KhronosGroup/OpenGL-Registry
+*/
+#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#include <windows.h>
+#endif
+#ifndef APIENTRY
+#define APIENTRY
+#endif
+#ifndef APIENTRYP
+#define APIENTRYP APIENTRY *
+#endif
+#ifndef GLAPI
+#define GLAPI extern
+#endif
+/* glcorearb.h is for use with OpenGL core profile implementations.
+** It should should be placed in the same directory as gl.h and
+** included as <GL/glcorearb.h>.
+**
+** glcorearb.h includes only APIs in the latest OpenGL core profile
+** implementation together with APIs in newer ARB extensions which 
+** can be supported by the core profile. It does not, and never will
+** include functionality removed from the core profile, such as
+** fixed-function vertex and fragment processing.
+**
+** Do not #include both <GL/glcorearb.h> and either of <GL/gl.h> or
+** <GL/glext.h> in the same source file.
+*/
+/* Generated C header for:
+ * API: gl
+ * Profile: core
+ * Versions considered: .*
+ * Versions emitted: .*
+ * Default extensions included: glcore
+ * Additional extensions included: _nomatch_^
+ * Extensions removed: _nomatch_^
+ */
+#ifndef GL_VERSION_1_0
+typedef void GLvoid;
+typedef unsigned int GLenum;
+
+typedef khronos_float_t GLfloat;
+typedef int GLint;
+typedef int GLsizei;
+typedef unsigned int GLbitfield;
+typedef double GLdouble;
+typedef unsigned int GLuint;
+typedef unsigned char GLboolean;
+typedef khronos_uint8_t GLubyte;
+#define GL_COLOR_BUFFER_BIT               0x00004000
+#define GL_FALSE                          0
+#define GL_TRUE                           1
+#define GL_TRIANGLES                      0x0004
+#define GL_ONE                            1
+#define GL_SRC_ALPHA                      0x0302
+#define GL_ONE_MINUS_SRC_ALPHA            0x0303
+#define GL_FRONT                          0x0404
+#define GL_BACK                           0x0405
+#define GL_FRONT_AND_BACK                 0x0408
+#define GL_POLYGON_MODE                   0x0B40
+#define GL_CULL_FACE                      0x0B44
+#define GL_DEPTH_TEST                     0x0B71
+#define GL_STENCIL_TEST                   0x0B90
+#define GL_VIEWPORT                       0x0BA2
+#define GL_BLEND                          0x0BE2
+#define GL_SCISSOR_BOX                    0x0C10
+#define GL_SCISSOR_TEST                   0x0C11
+#define GL_UNPACK_ROW_LENGTH              0x0CF2
+#define GL_UNPACK_ALIGNMENT               0x0CF5
+#define GL_PACK_ALIGNMENT                 0x0D05
+#define GL_MAX_TEXTURE_SIZE               0x0D33
+#define GL_TEXTURE_2D                     0x0DE1
+#define GL_UNSIGNED_BYTE                  0x1401
+#define GL_UNSIGNED_SHORT                 0x1403
+#define GL_UNSIGNED_INT                   0x1405
+#define GL_FLOAT                          0x1406
+#define GL_RGBA                           0x1908
+#define GL_FILL                           0x1B02
+#define GL_VENDOR                         0x1F00
+#define GL_RENDERER                       0x1F01
+#define GL_VERSION                        0x1F02
+#define GL_EXTENSIONS                     0x1F03
+#define GL_NEAREST                        0x2600
+#define GL_LINEAR                         0x2601
+#define GL_TEXTURE_MAG_FILTER             0x2800
+#define GL_TEXTURE_MIN_FILTER             0x2801
+#define GL_TEXTURE_WRAP_S                 0x2802
+#define GL_TEXTURE_WRAP_T                 0x2803
+#define GL_REPEAT                         0x2901
+typedef void (APIENTRYP PFNGLPOLYGONMODEPROC) (GLenum face, GLenum mode);
+typedef void (APIENTRYP PFNGLSCISSORPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
+typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param);
+typedef void (APIENTRYP PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
+typedef void (APIENTRYP PFNGLCLEARPROC) (GLbitfield mask);
+typedef void (APIENTRYP PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+typedef void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap);
+typedef void (APIENTRYP PFNGLENABLEPROC) (GLenum cap);
+typedef void (APIENTRYP PFNGLFLUSHPROC) (void);
+typedef void (APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
+typedef void (APIENTRYP PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
+typedef GLenum (APIENTRYP PFNGLGETERRORPROC) (void);
+typedef void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data);
+typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
+typedef GLboolean (APIENTRYP PFNGLISENABLEDPROC) (GLenum cap);
+typedef void (APIENTRYP PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glPolygonMode (GLenum face, GLenum mode);
+GLAPI void APIENTRY glScissor (GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI void APIENTRY glTexParameteri (GLenum target, GLenum pname, GLint param);
+GLAPI void APIENTRY glTexImage2D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
+GLAPI void APIENTRY glClear (GLbitfield mask);
+GLAPI void APIENTRY glClearColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+GLAPI void APIENTRY glDisable (GLenum cap);
+GLAPI void APIENTRY glEnable (GLenum cap);
+GLAPI void APIENTRY glFlush (void);
+GLAPI void APIENTRY glPixelStorei (GLenum pname, GLint param);
+GLAPI void APIENTRY glReadPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
+GLAPI GLenum APIENTRY glGetError (void);
+GLAPI void APIENTRY glGetIntegerv (GLenum pname, GLint *data);
+GLAPI const GLubyte *APIENTRY glGetString (GLenum name);
+GLAPI GLboolean APIENTRY glIsEnabled (GLenum cap);
+GLAPI void APIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei height);
+#endif
+#endif /* GL_VERSION_1_0 */
+#ifndef GL_VERSION_1_1
+typedef khronos_float_t GLclampf;
+typedef double GLclampd;
+#define GL_TEXTURE_BINDING_2D             0x8069
+typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices);
+typedef void (APIENTRYP PFNGLTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
+typedef void (APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture);
+typedef void (APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures);
+typedef void (APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const void *indices);
+GLAPI void APIENTRY glTexSubImage2D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
+GLAPI void APIENTRY glBindTexture (GLenum target, GLuint texture);
+GLAPI void APIENTRY glDeleteTextures (GLsizei n, const GLuint *textures);
+GLAPI void APIENTRY glGenTextures (GLsizei n, GLuint *textures);
+#endif
+#endif /* GL_VERSION_1_1 */
+#ifndef GL_VERSION_1_2
+#define GL_CLAMP_TO_EDGE                  0x812F
+#endif /* GL_VERSION_1_2 */
+#ifndef GL_VERSION_1_3
+#define GL_TEXTURE0                       0x84C0
+#define GL_ACTIVE_TEXTURE                 0x84E0
+typedef void (APIENTRYP PFNGLACTIVETEXTUREPROC) (GLenum texture);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glActiveTexture (GLenum texture);
+#endif
+#endif /* GL_VERSION_1_3 */
+#ifndef GL_VERSION_1_4
+#define GL_BLEND_DST_RGB                  0x80C8
+#define GL_BLEND_SRC_RGB                  0x80C9
+#define GL_BLEND_DST_ALPHA                0x80CA
+#define GL_BLEND_SRC_ALPHA                0x80CB
+#define GL_FUNC_ADD                       0x8006
+typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
+typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC) (GLenum mode);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glBlendFuncSeparate (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
+GLAPI void APIENTRY glBlendEquation (GLenum mode);
+#endif
+#endif /* GL_VERSION_1_4 */
+#ifndef GL_VERSION_1_5
+typedef khronos_ssize_t GLsizeiptr;
+typedef khronos_intptr_t GLintptr;
+#define GL_ARRAY_BUFFER                   0x8892
+#define GL_ELEMENT_ARRAY_BUFFER           0x8893
+#define GL_ARRAY_BUFFER_BINDING           0x8894
+#define GL_ELEMENT_ARRAY_BUFFER_BINDING   0x8895
+#define GL_STREAM_DRAW                    0x88E0
+typedef void (APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer);
+typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers);
+typedef void (APIENTRYP PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers);
+typedef void (APIENTRYP PFNGLBUFFERDATAPROC) (GLenum target, GLsizeiptr size, const void *data, GLenum usage);
+typedef void (APIENTRYP PFNGLBUFFERSUBDATAPROC) (GLenum target, GLintptr offset, GLsizeiptr size, const void *data);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glBindBuffer (GLenum target, GLuint buffer);
+GLAPI void APIENTRY glDeleteBuffers (GLsizei n, const GLuint *buffers);
+GLAPI void APIENTRY glGenBuffers (GLsizei n, GLuint *buffers);
+GLAPI void APIENTRY glBufferData (GLenum target, GLsizeiptr size, const void *data, GLenum usage);
+GLAPI void APIENTRY glBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, const void *data);
+#endif
+#endif /* GL_VERSION_1_5 */
+#ifndef GL_VERSION_2_0
+typedef char GLchar;
+typedef khronos_int16_t GLshort;
+typedef khronos_int8_t GLbyte;
+typedef khronos_uint16_t GLushort;
+#define GL_BLEND_EQUATION_RGB             0x8009
+#define GL_VERTEX_ATTRIB_ARRAY_ENABLED    0x8622
+#define GL_VERTEX_ATTRIB_ARRAY_SIZE       0x8623
+#define GL_VERTEX_ATTRIB_ARRAY_STRIDE     0x8624
+#define GL_VERTEX_ATTRIB_ARRAY_TYPE       0x8625
+#define GL_VERTEX_ATTRIB_ARRAY_POINTER    0x8645
+#define GL_BLEND_EQUATION_ALPHA           0x883D
+#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A
+#define GL_FRAGMENT_SHADER                0x8B30
+#define GL_VERTEX_SHADER                  0x8B31
+#define GL_COMPILE_STATUS                 0x8B81
+#define GL_LINK_STATUS                    0x8B82
+#define GL_INFO_LOG_LENGTH                0x8B84
+#define GL_CURRENT_PROGRAM                0x8B8D
+#define GL_UPPER_LEFT                     0x8CA2
+typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEPROC) (GLenum modeRGB, GLenum modeAlpha);
+typedef void (APIENTRYP PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader);
+typedef void (APIENTRYP PFNGLCOMPILESHADERPROC) (GLuint shader);
+typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC) (void);
+typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC) (GLenum type);
+typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC) (GLuint program);
+typedef void (APIENTRYP PFNGLDELETESHADERPROC) (GLuint shader);
+typedef void (APIENTRYP PFNGLDETACHSHADERPROC) (GLuint program, GLuint shader);
+typedef void (APIENTRYP PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint index);
+typedef void (APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index);
+typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const GLchar *name);
+typedef void (APIENTRYP PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params);
+typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+typedef void (APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params);
+typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name);
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIVPROC) (GLuint index, GLenum pname, GLint *params);
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC) (GLuint index, GLenum pname, void **pointer);
+typedef GLboolean (APIENTRYP PFNGLISPROGRAMPROC) (GLuint program);
+typedef void (APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program);
+typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
+typedef void (APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program);
+typedef void (APIENTRYP PFNGLUNIFORM1IPROC) (GLint location, GLint v0);
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+typedef void (APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glBlendEquationSeparate (GLenum modeRGB, GLenum modeAlpha);
+GLAPI void APIENTRY glAttachShader (GLuint program, GLuint shader);
+GLAPI void APIENTRY glCompileShader (GLuint shader);
+GLAPI GLuint APIENTRY glCreateProgram (void);
+GLAPI GLuint APIENTRY glCreateShader (GLenum type);
+GLAPI void APIENTRY glDeleteProgram (GLuint program);
+GLAPI void APIENTRY glDeleteShader (GLuint shader);
+GLAPI void APIENTRY glDetachShader (GLuint program, GLuint shader);
+GLAPI void APIENTRY glDisableVertexAttribArray (GLuint index);
+GLAPI void APIENTRY glEnableVertexAttribArray (GLuint index);
+GLAPI GLint APIENTRY glGetAttribLocation (GLuint program, const GLchar *name);
+GLAPI void APIENTRY glGetProgramiv (GLuint program, GLenum pname, GLint *params);
+GLAPI void APIENTRY glGetProgramInfoLog (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+GLAPI void APIENTRY glGetShaderiv (GLuint shader, GLenum pname, GLint *params);
+GLAPI void APIENTRY glGetShaderInfoLog (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+GLAPI GLint APIENTRY glGetUniformLocation (GLuint program, const GLchar *name);
+GLAPI void APIENTRY glGetVertexAttribiv (GLuint index, GLenum pname, GLint *params);
+GLAPI void APIENTRY glGetVertexAttribPointerv (GLuint index, GLenum pname, void **pointer);
+GLAPI GLboolean APIENTRY glIsProgram (GLuint program);
+GLAPI void APIENTRY glLinkProgram (GLuint program);
+GLAPI void APIENTRY glShaderSource (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
+GLAPI void APIENTRY glUseProgram (GLuint program);
+GLAPI void APIENTRY glUniform1i (GLint location, GLint v0);
+GLAPI void APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI void APIENTRY glVertexAttribPointer (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
+#endif
+#endif /* GL_VERSION_2_0 */
+#ifndef GL_VERSION_2_1
+#define GL_PIXEL_UNPACK_BUFFER            0x88EC
+#define GL_PIXEL_UNPACK_BUFFER_BINDING    0x88EF
+#endif /* GL_VERSION_2_1 */
+#ifndef GL_VERSION_3_0
+typedef khronos_uint16_t GLhalf;
+#define GL_MAJOR_VERSION                  0x821B
+#define GL_MINOR_VERSION                  0x821C
+#define GL_NUM_EXTENSIONS                 0x821D
+#define GL_FRAMEBUFFER_SRGB               0x8DB9
+#define GL_VERTEX_ARRAY_BINDING           0x85B5
+typedef void (APIENTRYP PFNGLGETBOOLEANI_VPROC) (GLenum target, GLuint index, GLboolean *data);
+typedef void (APIENTRYP PFNGLGETINTEGERI_VPROC) (GLenum target, GLuint index, GLint *data);
+typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGIPROC) (GLenum name, GLuint index);
+typedef void (APIENTRYP PFNGLBINDVERTEXARRAYPROC) (GLuint array);
+typedef void (APIENTRYP PFNGLDELETEVERTEXARRAYSPROC) (GLsizei n, const GLuint *arrays);
+typedef void (APIENTRYP PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI const GLubyte *APIENTRY glGetStringi (GLenum name, GLuint index);
+GLAPI void APIENTRY glBindVertexArray (GLuint array);
+GLAPI void APIENTRY glDeleteVertexArrays (GLsizei n, const GLuint *arrays);
+GLAPI void APIENTRY glGenVertexArrays (GLsizei n, GLuint *arrays);
+#endif
+#endif /* GL_VERSION_3_0 */
+#ifndef GL_VERSION_3_1
+#define GL_VERSION_3_1 1
+#define GL_PRIMITIVE_RESTART              0x8F9D
+#endif /* GL_VERSION_3_1 */
+#ifndef GL_VERSION_3_2
+#define GL_VERSION_3_2 1
+typedef struct __GLsync *GLsync;
+typedef khronos_uint64_t GLuint64;
+typedef khronos_int64_t GLint64;
+#define GL_CONTEXT_COMPATIBILITY_PROFILE_BIT 0x00000002
+#define GL_CONTEXT_PROFILE_MASK           0x9126
+typedef void (APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
+typedef void (APIENTRYP PFNGLGETINTEGER64I_VPROC) (GLenum target, GLuint index, GLint64 *data);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glDrawElementsBaseVertex (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
+#endif
+#endif /* GL_VERSION_3_2 */
+#ifndef GL_VERSION_3_3
+#define GL_VERSION_3_3 1
+#define GL_SAMPLER_BINDING                0x8919
+typedef void (APIENTRYP PFNGLGENSAMPLERSPROC) (GLsizei count, GLuint *samplers);
+typedef void (APIENTRYP PFNGLDELETESAMPLERSPROC) (GLsizei count, const GLuint *samplers);
+typedef void (APIENTRYP PFNGLBINDSAMPLERPROC) (GLuint unit, GLuint sampler);
+typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIPROC) (GLuint sampler, GLenum pname, GLint param);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glGenSamplers (GLsizei count, GLuint *samplers);
+GLAPI void APIENTRY glDeleteSamplers (GLsizei count, const GLuint *samplers);
+GLAPI void APIENTRY glBindSampler (GLuint unit, GLuint sampler);
+GLAPI void APIENTRY glSamplerParameteri (GLuint sampler, GLenum pname, GLint param);
+#endif
+#endif /* GL_VERSION_3_3 */
+#ifndef GL_VERSION_4_1
+typedef void (APIENTRYP PFNGLGETFLOATI_VPROC) (GLenum target, GLuint index, GLfloat *data);
+typedef void (APIENTRYP PFNGLGETDOUBLEI_VPROC) (GLenum target, GLuint index, GLdouble *data);
+#endif /* GL_VERSION_4_1 */
+#ifndef GL_VERSION_4_3
+typedef void (APIENTRY  *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
+#endif /* GL_VERSION_4_3 */
+#ifndef GL_VERSION_4_5
+#define GL_CLIP_ORIGIN                    0x935C
+typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint *param);
+typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI64_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint64 *param);
+#endif /* GL_VERSION_4_5 */
+#ifndef GL_ARB_bindless_texture
+typedef khronos_uint64_t GLuint64EXT;
+#endif /* GL_ARB_bindless_texture */
+#ifndef GL_ARB_cl_event
+struct _cl_context;
+struct _cl_event;
+#endif /* GL_ARB_cl_event */
+#ifndef GL_ARB_clip_control
+#define GL_ARB_clip_control 1
+#endif /* GL_ARB_clip_control */
+#ifndef GL_ARB_debug_output
+typedef void (APIENTRY  *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
+#endif /* GL_ARB_debug_output */
+#ifndef GL_EXT_EGL_image_storage
+typedef void *GLeglImageOES;
+#endif /* GL_EXT_EGL_image_storage */
+#ifndef GL_EXT_direct_state_access
+typedef void (APIENTRYP PFNGLGETFLOATI_VEXTPROC) (GLenum pname, GLuint index, GLfloat *params);
+typedef void (APIENTRYP PFNGLGETDOUBLEI_VEXTPROC) (GLenum pname, GLuint index, GLdouble *params);
+typedef void (APIENTRYP PFNGLGETPOINTERI_VEXTPROC) (GLenum pname, GLuint index, void **params);
+typedef void (APIENTRYP PFNGLGETVERTEXARRAYINTEGERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, GLint *param);
+typedef void (APIENTRYP PFNGLGETVERTEXARRAYPOINTERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, void **param);
+#endif /* GL_EXT_direct_state_access */
+#ifndef GL_NV_draw_vulkan_image
+typedef void (APIENTRY  *GLVULKANPROCNV)(void);
+#endif /* GL_NV_draw_vulkan_image */
+#ifndef GL_NV_gpu_shader5
+typedef khronos_int64_t GLint64EXT;
+#endif /* GL_NV_gpu_shader5 */
+#ifndef GL_NV_vertex_buffer_unified_memory
+typedef void (APIENTRYP PFNGLGETINTEGERUI64I_VNVPROC) (GLenum value, GLuint index, GLuint64EXT *result);
+#endif /* GL_NV_vertex_buffer_unified_memory */
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+#ifndef GL3W_API
+#define GL3W_API
+#endif
+
+#ifndef __gl_h_
+#define __gl_h_
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define GL3W_OK 0
+#define GL3W_ERROR_INIT -1
+#define GL3W_ERROR_LIBRARY_OPEN -2
+#define GL3W_ERROR_OPENGL_VERSION -3
+
+typedef void (*GL3WglProc)(void);
+typedef GL3WglProc (*GL3WGetProcAddressProc)(const char *proc);
+
+/* gl3w api */
+GL3W_API int imgl3wInit(void);
+GL3W_API int imgl3wInit2(GL3WGetProcAddressProc proc);
+GL3W_API void imgl3wShutdown(void);
+GL3W_API int imgl3wIsSupported(int major, int minor);
+GL3W_API GL3WglProc imgl3wGetProcAddress(const char *proc);
+
+/* gl3w internal state */
+union ImGL3WProcs {
+    GL3WglProc ptr[63];
+    struct {
+        PFNGLACTIVETEXTUREPROC            ActiveTexture;
+        PFNGLATTACHSHADERPROC             AttachShader;
+        PFNGLBINDBUFFERPROC               BindBuffer;
+        PFNGLBINDSAMPLERPROC              BindSampler;
+        PFNGLBINDTEXTUREPROC              BindTexture;
+        PFNGLBINDVERTEXARRAYPROC          BindVertexArray;
+        PFNGLBLENDEQUATIONPROC            BlendEquation;
+        PFNGLBLENDEQUATIONSEPARATEPROC    BlendEquationSeparate;
+        PFNGLBLENDFUNCSEPARATEPROC        BlendFuncSeparate;
+        PFNGLBUFFERDATAPROC               BufferData;
+        PFNGLBUFFERSUBDATAPROC            BufferSubData;
+        PFNGLCLEARPROC                    Clear;
+        PFNGLCLEARCOLORPROC               ClearColor;
+        PFNGLCOMPILESHADERPROC            CompileShader;
+        PFNGLCREATEPROGRAMPROC            CreateProgram;
+        PFNGLCREATESHADERPROC             CreateShader;
+        PFNGLDELETEBUFFERSPROC            DeleteBuffers;
+        PFNGLDELETEPROGRAMPROC            DeleteProgram;
+        PFNGLDELETESAMPLERSPROC           DeleteSamplers;
+        PFNGLDELETESHADERPROC             DeleteShader;
+        PFNGLDELETETEXTURESPROC           DeleteTextures;
+        PFNGLDELETEVERTEXARRAYSPROC       DeleteVertexArrays;
+        PFNGLDETACHSHADERPROC             DetachShader;
+        PFNGLDISABLEPROC                  Disable;
+        PFNGLDISABLEVERTEXATTRIBARRAYPROC DisableVertexAttribArray;
+        PFNGLDRAWELEMENTSPROC             DrawElements;
+        PFNGLDRAWELEMENTSBASEVERTEXPROC   DrawElementsBaseVertex;
+        PFNGLENABLEPROC                   Enable;
+        PFNGLENABLEVERTEXATTRIBARRAYPROC  EnableVertexAttribArray;
+        PFNGLFLUSHPROC                    Flush;
+        PFNGLGENBUFFERSPROC               GenBuffers;
+        PFNGLGENSAMPLERSPROC              GenSamplers;
+        PFNGLGENTEXTURESPROC              GenTextures;
+        PFNGLGENVERTEXARRAYSPROC          GenVertexArrays;
+        PFNGLGETATTRIBLOCATIONPROC        GetAttribLocation;
+        PFNGLGETERRORPROC                 GetError;
+        PFNGLGETINTEGERVPROC              GetIntegerv;
+        PFNGLGETPROGRAMINFOLOGPROC        GetProgramInfoLog;
+        PFNGLGETPROGRAMIVPROC             GetProgramiv;
+        PFNGLGETSHADERINFOLOGPROC         GetShaderInfoLog;
+        PFNGLGETSHADERIVPROC              GetShaderiv;
+        PFNGLGETSTRINGPROC                GetString;
+        PFNGLGETSTRINGIPROC               GetStringi;
+        PFNGLGETUNIFORMLOCATIONPROC       GetUniformLocation;
+        PFNGLGETVERTEXATTRIBPOINTERVPROC  GetVertexAttribPointerv;
+        PFNGLGETVERTEXATTRIBIVPROC        GetVertexAttribiv;
+        PFNGLISENABLEDPROC                IsEnabled;
+        PFNGLISPROGRAMPROC                IsProgram;
+        PFNGLLINKPROGRAMPROC              LinkProgram;
+        PFNGLPIXELSTOREIPROC              PixelStorei;
+        PFNGLPOLYGONMODEPROC              PolygonMode;
+        PFNGLREADPIXELSPROC               ReadPixels;
+        PFNGLSAMPLERPARAMETERIPROC        SamplerParameteri;
+        PFNGLSCISSORPROC                  Scissor;
+        PFNGLSHADERSOURCEPROC             ShaderSource;
+        PFNGLTEXIMAGE2DPROC               TexImage2D;
+        PFNGLTEXPARAMETERIPROC            TexParameteri;
+        PFNGLTEXSUBIMAGE2DPROC            TexSubImage2D;
+        PFNGLUNIFORM1IPROC                Uniform1i;
+        PFNGLUNIFORMMATRIX4FVPROC         UniformMatrix4fv;
+        PFNGLUSEPROGRAMPROC               UseProgram;
+        PFNGLVERTEXATTRIBPOINTERPROC      VertexAttribPointer;
+        PFNGLVIEWPORTPROC                 Viewport;
+    } gl;
+};
+
+GL3W_API extern union ImGL3WProcs imgl3wProcs;
+
+/* OpenGL functions */
+#define glActiveTexture                   imgl3wProcs.gl.ActiveTexture
+#define glAttachShader                    imgl3wProcs.gl.AttachShader
+#define glBindBuffer                      imgl3wProcs.gl.BindBuffer
+#define glBindSampler                     imgl3wProcs.gl.BindSampler
+#define glBindTexture                     imgl3wProcs.gl.BindTexture
+#define glBindVertexArray                 imgl3wProcs.gl.BindVertexArray
+#define glBlendEquation                   imgl3wProcs.gl.BlendEquation
+#define glBlendEquationSeparate           imgl3wProcs.gl.BlendEquationSeparate
+#define glBlendFuncSeparate               imgl3wProcs.gl.BlendFuncSeparate
+#define glBufferData                      imgl3wProcs.gl.BufferData
+#define glBufferSubData                   imgl3wProcs.gl.BufferSubData
+#define glClear                           imgl3wProcs.gl.Clear
+#define glClearColor                      imgl3wProcs.gl.ClearColor
+#define glCompileShader                   imgl3wProcs.gl.CompileShader
+#define glCreateProgram                   imgl3wProcs.gl.CreateProgram
+#define glCreateShader                    imgl3wProcs.gl.CreateShader
+#define glDeleteBuffers                   imgl3wProcs.gl.DeleteBuffers
+#define glDeleteProgram                   imgl3wProcs.gl.DeleteProgram
+#define glDeleteSamplers                  imgl3wProcs.gl.DeleteSamplers
+#define glDeleteShader                    imgl3wProcs.gl.DeleteShader
+#define glDeleteTextures                  imgl3wProcs.gl.DeleteTextures
+#define glDeleteVertexArrays              imgl3wProcs.gl.DeleteVertexArrays
+#define glDetachShader                    imgl3wProcs.gl.DetachShader
+#define glDisable                         imgl3wProcs.gl.Disable
+#define glDisableVertexAttribArray        imgl3wProcs.gl.DisableVertexAttribArray
+#define glDrawElements                    imgl3wProcs.gl.DrawElements
+#define glDrawElementsBaseVertex          imgl3wProcs.gl.DrawElementsBaseVertex
+#define glEnable                          imgl3wProcs.gl.Enable
+#define glEnableVertexAttribArray         imgl3wProcs.gl.EnableVertexAttribArray
+#define glFlush                           imgl3wProcs.gl.Flush
+#define glGenBuffers                      imgl3wProcs.gl.GenBuffers
+#define glGenSamplers                     imgl3wProcs.gl.GenSamplers
+#define glGenTextures                     imgl3wProcs.gl.GenTextures
+#define glGenVertexArrays                 imgl3wProcs.gl.GenVertexArrays
+#define glGetAttribLocation               imgl3wProcs.gl.GetAttribLocation
+#define glGetError                        imgl3wProcs.gl.GetError
+#define glGetIntegerv                     imgl3wProcs.gl.GetIntegerv
+#define glGetProgramInfoLog               imgl3wProcs.gl.GetProgramInfoLog
+#define glGetProgramiv                    imgl3wProcs.gl.GetProgramiv
+#define glGetShaderInfoLog                imgl3wProcs.gl.GetShaderInfoLog
+#define glGetShaderiv                     imgl3wProcs.gl.GetShaderiv
+#define glGetString                       imgl3wProcs.gl.GetString
+#define glGetStringi                      imgl3wProcs.gl.GetStringi
+#define glGetUniformLocation              imgl3wProcs.gl.GetUniformLocation
+#define glGetVertexAttribPointerv         imgl3wProcs.gl.GetVertexAttribPointerv
+#define glGetVertexAttribiv               imgl3wProcs.gl.GetVertexAttribiv
+#define glIsEnabled                       imgl3wProcs.gl.IsEnabled
+#define glIsProgram                       imgl3wProcs.gl.IsProgram
+#define glLinkProgram                     imgl3wProcs.gl.LinkProgram
+#define glPixelStorei                     imgl3wProcs.gl.PixelStorei
+#define glPolygonMode                     imgl3wProcs.gl.PolygonMode
+#define glReadPixels                      imgl3wProcs.gl.ReadPixels
+#define glSamplerParameteri               imgl3wProcs.gl.SamplerParameteri
+#define glScissor                         imgl3wProcs.gl.Scissor
+#define glShaderSource                    imgl3wProcs.gl.ShaderSource
+#define glTexImage2D                      imgl3wProcs.gl.TexImage2D
+#define glTexParameteri                   imgl3wProcs.gl.TexParameteri
+#define glTexSubImage2D                   imgl3wProcs.gl.TexSubImage2D
+#define glUniform1i                       imgl3wProcs.gl.Uniform1i
+#define glUniformMatrix4fv                imgl3wProcs.gl.UniformMatrix4fv
+#define glUseProgram                      imgl3wProcs.gl.UseProgram
+#define glVertexAttribPointer             imgl3wProcs.gl.VertexAttribPointer
+#define glViewport                        imgl3wProcs.gl.Viewport
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#ifdef IMGL3W_IMPL
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdlib.h>
+
+#define GL3W_ARRAY_SIZE(x)  (sizeof(x) / sizeof((x)[0]))
+
+#if defined(_WIN32)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#include <windows.h>
+
+static HMODULE libgl = NULL;
+typedef PROC(__stdcall* GL3WglGetProcAddr)(LPCSTR);
+static GL3WglGetProcAddr wgl_get_proc_address;
+
+static int open_libgl(void)
+{
+    libgl = LoadLibraryA("opengl32.dll");
+    if (!libgl)
+        return GL3W_ERROR_LIBRARY_OPEN;
+    wgl_get_proc_address = (GL3WglGetProcAddr)GetProcAddress(libgl, "wglGetProcAddress");
+    return GL3W_OK;
+}
+
+static void close_libgl(void) { FreeLibrary(libgl); libgl = NULL; }
+static GL3WglProc get_proc(const char *proc)
+{
+    GL3WglProc res;
+    res = (GL3WglProc)wgl_get_proc_address(proc);
+    if (!res)
+        res = (GL3WglProc)GetProcAddress(libgl, proc);
+    return res;
+}
+#elif defined(__APPLE__)
+#include <dlfcn.h>
+
+static void *libgl = NULL;
+static int open_libgl(void)
+{
+    libgl = dlopen("/System/Library/Frameworks/OpenGL.framework/OpenGL", RTLD_LAZY | RTLD_LOCAL);
+    if (!libgl)
+        return GL3W_ERROR_LIBRARY_OPEN;
+    return GL3W_OK;
+}
+
+static void close_libgl(void) { dlclose(libgl); libgl = NULL; }
+
+static GL3WglProc get_proc(const char *proc)
+{
+    GL3WglProc res;
+    *(void **)(&res) = dlsym(libgl, proc);
+    return res;
+}
+#else
+#include <dlfcn.h>
+
+static void* libgl;  // OpenGL library
+static void* libglx;  // GLX library
+static void* libegl;  // EGL library
+static GL3WGetProcAddressProc gl_get_proc_address;
+
+static void close_libgl(void)
+{
+    if (libgl) {
+        dlclose(libgl);
+        libgl = NULL;
+    }
+    if (libegl) {
+        dlclose(libegl);
+        libegl = NULL;
+    }
+    if (libglx) {
+        dlclose(libglx);
+        libglx = NULL;
+    }
+}
+
+static int is_library_loaded(const char* name, void** lib)
+{
+#if defined(__HAIKU__)
+    *lib = NULL; // no support for RTLD_NOLOAD on Haiku.
+#else
+    *lib = dlopen(name, RTLD_LAZY | RTLD_LOCAL | RTLD_NOLOAD);
+#endif
+    return *lib != NULL;
+}
+
+static int open_libs(void)
+{
+    // On Linux we have two APIs to get process addresses: EGL and GLX.
+    // EGL is supported under both X11 and Wayland, whereas GLX is X11-specific.
+
+    libgl = NULL;
+    libegl = NULL;
+    libglx = NULL;
+
+    // First check what's already loaded, the windowing library might have
+    // already loaded either EGL or GLX and we want to use the same one.
+
+    if (is_library_loaded("libEGL.so.1", &libegl) ||
+        is_library_loaded("libGLX.so.0", &libglx)) {
+        libgl = dlopen("libOpenGL.so.0", RTLD_LAZY | RTLD_LOCAL);
+        if (libgl)
+            return GL3W_OK;
+        else
+            close_libgl();
+    }
+
+    if (is_library_loaded("libGL.so", &libgl))
+        return GL3W_OK;
+    if (is_library_loaded("libGL.so.1", &libgl))
+        return GL3W_OK;
+    if (is_library_loaded("libGL.so.3", &libgl))
+        return GL3W_OK;
+
+    // Neither is already loaded, so we have to load one.  Try EGL first
+    // because it is supported under both X11 and Wayland.
+
+    // Load OpenGL + EGL
+    libgl = dlopen("libOpenGL.so.0", RTLD_LAZY | RTLD_LOCAL);
+    libegl = dlopen("libEGL.so.1", RTLD_LAZY | RTLD_LOCAL);
+    if (libgl && libegl)
+        return GL3W_OK;
+    else
+        close_libgl();
+
+    // Fall back to legacy libGL, which includes GLX
+    // While most systems use libGL.so.1, NetBSD seems to use that libGL.so.3. See https://github.com/ocornut/imgui/issues/6983
+    libgl = dlopen("libGL.so", RTLD_LAZY | RTLD_LOCAL);
+    if (!libgl)
+        libgl = dlopen("libGL.so.1", RTLD_LAZY | RTLD_LOCAL);
+    if (!libgl)
+        libgl = dlopen("libGL.so.3", RTLD_LAZY | RTLD_LOCAL);
+
+    if (libgl)
+        return GL3W_OK;
+
+    return GL3W_ERROR_LIBRARY_OPEN;
+}
+
+static int open_libgl(void)
+{
+    int res = open_libs();
+    if (res)
+        return res;
+
+    if (libegl)
+        *(void**)(&gl_get_proc_address) = dlsym(libegl, "eglGetProcAddress");
+    else if (libglx)
+        *(void**)(&gl_get_proc_address) = dlsym(libglx, "glXGetProcAddressARB");
+    else
+        *(void**)(&gl_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB");
+
+    if (!gl_get_proc_address) {
+        close_libgl();
+        return GL3W_ERROR_LIBRARY_OPEN;
+    }
+
+    return GL3W_OK;
+}
+
+static GL3WglProc get_proc(const char* proc)
+{
+    GL3WglProc res = NULL;
+
+    // Before EGL version 1.5, eglGetProcAddress doesn't support querying core
+    // functions and may return a dummy function if we try, so try to load the
+    // function from the GL library directly first.
+    if (libegl)
+        *(void**)(&res) = dlsym(libgl, proc);
+
+    if (!res)
+        res = gl_get_proc_address(proc);
+
+    if (!libegl && !res)
+        *(void**)(&res) = dlsym(libgl, proc);
+
+    return res;
+}
+#endif
+
+static struct { int major, minor; } version;
+
+static int parse_version(void)
+{
+    if (!glGetIntegerv)
+        return GL3W_ERROR_INIT;
+    glGetIntegerv(GL_MAJOR_VERSION, &version.major);
+    glGetIntegerv(GL_MINOR_VERSION, &version.minor);
+    if (version.major == 0 && version.minor == 0)
+    {
+        // Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
+        if (const char* gl_version = (const char*)glGetString(GL_VERSION))
+            sscanf(gl_version, "%d.%d", &version.major, &version.minor);
+    }
+    if (version.major < 2)
+        return GL3W_ERROR_OPENGL_VERSION;
+    return GL3W_OK;
+}
+
+static void load_procs(GL3WGetProcAddressProc proc);
+
+int imgl3wInit(void)
+{
+    int res = open_libgl();
+    if (res)
+        return res;
+    atexit(close_libgl);
+    return imgl3wInit2(get_proc);
+}
+
+int imgl3wInit2(GL3WGetProcAddressProc proc)
+{
+    load_procs(proc);
+    return parse_version();
+}
+
+void imgl3wShutdown(void)
+{
+    close_libgl();
+}
+
+int imgl3wIsSupported(int major, int minor)
+{
+    if (major < 2)
+        return 0;
+    if (version.major == major)
+        return version.minor >= minor;
+    return version.major >= major;
+}
+
+GL3WglProc imgl3wGetProcAddress(const char *proc) { return get_proc(proc); }
+
+static const char *proc_names[] = {
+    "glActiveTexture",
+    "glAttachShader",
+    "glBindBuffer",
+    "glBindSampler",
+    "glBindTexture",
+    "glBindVertexArray",
+    "glBlendEquation",
+    "glBlendEquationSeparate",
+    "glBlendFuncSeparate",
+    "glBufferData",
+    "glBufferSubData",
+    "glClear",
+    "glClearColor",
+    "glCompileShader",
+    "glCreateProgram",
+    "glCreateShader",
+    "glDeleteBuffers",
+    "glDeleteProgram",
+    "glDeleteSamplers",
+    "glDeleteShader",
+    "glDeleteTextures",
+    "glDeleteVertexArrays",
+    "glDetachShader",
+    "glDisable",
+    "glDisableVertexAttribArray",
+    "glDrawElements",
+    "glDrawElementsBaseVertex",
+    "glEnable",
+    "glEnableVertexAttribArray",
+    "glFlush",
+    "glGenBuffers",
+    "glGenSamplers",
+    "glGenTextures",
+    "glGenVertexArrays",
+    "glGetAttribLocation",
+    "glGetError",
+    "glGetIntegerv",
+    "glGetProgramInfoLog",
+    "glGetProgramiv",
+    "glGetShaderInfoLog",
+    "glGetShaderiv",
+    "glGetString",
+    "glGetStringi",
+    "glGetUniformLocation",
+    "glGetVertexAttribPointerv",
+    "glGetVertexAttribiv",
+    "glIsEnabled",
+    "glIsProgram",
+    "glLinkProgram",
+    "glPixelStorei",
+    "glPolygonMode",
+    "glReadPixels",
+    "glSamplerParameteri",
+    "glScissor",
+    "glShaderSource",
+    "glTexImage2D",
+    "glTexParameteri",
+    "glTexSubImage2D",
+    "glUniform1i",
+    "glUniformMatrix4fv",
+    "glUseProgram",
+    "glVertexAttribPointer",
+    "glViewport",
+};
+
+GL3W_API union ImGL3WProcs imgl3wProcs;
+
+static void load_procs(GL3WGetProcAddressProc proc)
+{
+    size_t i;
+    for (i = 0; i < GL3W_ARRAY_SIZE(proc_names); i++)
+        imgl3wProcs.ptr[i] = proc(proc_names[i]);
+}
+
+#ifdef __cplusplus
+}
+#endif
+#endif

lib/imgui/backends/imgui_impl_osx.h

@@ -0,0 +1,58 @@
+// dear imgui: Platform Backend for OSX / Cocoa
+// This needs to be used along with a Renderer (e.g. OpenGL2, OpenGL3, Vulkan, Metal..)
+// - Not well tested. If you want a portable application, prefer using the GLFW or SDL platform Backends on Mac.
+// - Requires linking with the GameController framework ("-framework GameController").
+
+// Implemented features:
+//  [X] Platform: Clipboard support is part of core Dear ImGui (no specific code in this backend).
+//  [X] Platform: Mouse support. Can discriminate Mouse/Pen.
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy kVK_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Gamepad support.
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: IME support.
+//  [x] Platform: Multi-viewport / platform windows.
+// Missing features or Issues:
+//  [ ] Platform: Multi-viewport: Window size not correctly reported when enabling io.ConfigViewportsNoDecoration
+//  [ ] Platform: Multi-viewport: Missing ImGuiBackendFlags_HasParentViewport support. The viewport->ParentViewportID field is ignored, and therefore io.ConfigViewportsNoDefaultParent has no effect either.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+#ifdef __OBJC__
+
+@class NSEvent;
+@class NSView;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplOSX_Init(NSView* _Nonnull view);
+IMGUI_IMPL_API void     ImGui_ImplOSX_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplOSX_NewFrame(NSView* _Nullable view);
+
+#endif
+
+//-----------------------------------------------------------------------------
+// C++ API
+//-----------------------------------------------------------------------------
+
+#ifdef IMGUI_IMPL_METAL_CPP_EXTENSIONS
+// #include <AppKit/AppKit.hpp>
+#ifndef __OBJC__
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplOSX_Init(void* _Nonnull view);
+IMGUI_IMPL_API void     ImGui_ImplOSX_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplOSX_NewFrame(void* _Nullable view);
+
+#endif
+#endif
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_sdl2.h

@@ -0,0 +1,54 @@
+// dear imgui: Platform Backend for SDL2
+// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
+// (Info: SDL2 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
+
+// Implemented features:
+//  [X] Platform: Clipboard support.
+//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen.
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Gamepad support.
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Basic IME support. App needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
+//  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+// Missing features or Issues:
+//  [ ] Platform: Multi-viewport: Minimized windows seems to break mouse wheel events (at least under Windows).
+//  [ ] Platform: Multi-viewport: Missing ImGuiBackendFlags_HasParentViewport support. The viewport->ParentViewportID field is ignored, and therefore io.ConfigViewportsNoDefaultParent has no effect either.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct SDL_Window;
+struct SDL_Renderer;
+struct _SDL_GameController;
+typedef union SDL_Event SDL_Event;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
+IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForVulkan(SDL_Window* window);
+IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForD3D(SDL_Window* window);
+IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForMetal(SDL_Window* window);
+IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer);
+IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForOther(SDL_Window* window);
+IMGUI_IMPL_API void     ImGui_ImplSDL2_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplSDL2_NewFrame();
+IMGUI_IMPL_API bool     ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event);
+
+// DPI-related helpers (optional)
+IMGUI_IMPL_API float    ImGui_ImplSDL2_GetContentScaleForWindow(SDL_Window* window);
+IMGUI_IMPL_API float    ImGui_ImplSDL2_GetContentScaleForDisplay(int display_index);
+
+// Gamepad selection automatically starts in AutoFirst mode, picking first available SDL_Gamepad. You may override this.
+// When using manual mode, caller is responsible for opening/closing gamepad.
+enum ImGui_ImplSDL2_GamepadMode { ImGui_ImplSDL2_GamepadMode_AutoFirst, ImGui_ImplSDL2_GamepadMode_AutoAll, ImGui_ImplSDL2_GamepadMode_Manual };
+IMGUI_IMPL_API void     ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode mode, struct _SDL_GameController** manual_gamepads_array = nullptr, int manual_gamepads_count = -1);
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_sdl3.h

@@ -0,0 +1,50 @@
+// dear imgui: Platform Backend for SDL3
+// This needs to be used along with a Renderer (e.g. SDL_GPU, DirectX11, OpenGL3, Vulkan..)
+// (Info: SDL3 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
+
+// Implemented features:
+//  [X] Platform: Clipboard support.
+//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen.
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Gamepad support.
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [x] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable' -> the OS animation effect when window gets created/destroyed is problematic. SDL2 backend doesn't have issue.
+// Missing features or Issues:
+//  [ ] Platform: Multi-viewport: Minimized windows seems to break mouse wheel events (at least under Windows).
+//  [x] Platform: IME support. Position somehow broken in SDL3 + app needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct SDL_Window;
+struct SDL_Renderer;
+struct SDL_Gamepad;
+typedef union SDL_Event SDL_Event;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
+IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForVulkan(SDL_Window* window);
+IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForD3D(SDL_Window* window);
+IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForMetal(SDL_Window* window);
+IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer);
+IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForSDLGPU(SDL_Window* window);
+IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForOther(SDL_Window* window);
+IMGUI_IMPL_API void     ImGui_ImplSDL3_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplSDL3_NewFrame();
+IMGUI_IMPL_API bool     ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event);
+
+// Gamepad selection automatically starts in AutoFirst mode, picking first available SDL_Gamepad. You may override this.
+// When using manual mode, caller is responsible for opening/closing gamepad.
+enum ImGui_ImplSDL3_GamepadMode { ImGui_ImplSDL3_GamepadMode_AutoFirst, ImGui_ImplSDL3_GamepadMode_AutoAll, ImGui_ImplSDL3_GamepadMode_Manual };
+IMGUI_IMPL_API void     ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode mode, SDL_Gamepad** manual_gamepads_array = nullptr, int manual_gamepads_count = -1);
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_sdlgpu3.cpp

@@ -0,0 +1,745 @@
+// dear imgui: Renderer Backend for SDL_GPU
+// This needs to be used along with the SDL3 Platform Backend
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'SDL_GPUTexture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef! **IMPORTANT** Before 2025/08/08, ImTextureID was a reference to a SDL_GPUTextureSamplerBinding struct.
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// The aim of imgui_impl_sdlgpu3.h/.cpp is to be usable in your engine without any modification.
+// IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// Important note to the reader who wish to integrate imgui_impl_sdlgpu3.cpp/.h in their own engine/app.
+// - Unlike other backends, the user must call the function ImGui_ImplSDLGPU3_PrepareDrawData() BEFORE issuing a SDL_GPURenderPass containing ImGui_ImplSDLGPU3_RenderDrawData.
+//   Calling the function is MANDATORY, otherwise the ImGui will not upload neither the vertex nor the index buffer for the GPU. See imgui_impl_sdlgpu3.cpp for more info.
+
+// CHANGELOG
+//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
+//  2025-08-20: Added ImGui_ImplSDLGPU3_InitInfo::SwapchainComposition and ImGui_ImplSDLGPU3_InitInfo::PresentMode to configure how secondary viewports are created.
+//  2025-08-08: *BREAKING* Changed ImTextureID type from SDL_GPUTextureSamplerBinding* to SDL_GPUTexture*, which is more natural and easier for user to manage. If you need to change the current sampler, you can access the ImGui_ImplSDLGPU3_RenderState struct. (#8866, #8163, #7998, #7988)
+//  2025-08-08: Expose SamplerDefault and SamplerCurrent in ImGui_ImplSDLGPU3_RenderState. Allow callback to change sampler.
+//  2025-06-25: Mapping transfer buffer for texture update use cycle=true. Fixes artifacts e.g. on Metal backend.
+//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLGPU3_CreateFontsTexture() and ImGui_ImplSDLGPU3_DestroyFontsTexture().
+//  2025-04-28: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
+//  2025-03-30: Made ImGui_ImplSDLGPU3_PrepareDrawData() reuse GPU Transfer Buffers which were unusually slow to recreate every frame. Much faster now.
+//  2025-03-21: Fixed typo in function name Imgui_ImplSDLGPU3_PrepareDrawData() -> ImGui_ImplSDLGPU3_PrepareDrawData().
+//  2025-01-16: Renamed ImGui_ImplSDLGPU3_InitInfo::GpuDevice to Device.
+//  2025-01-09: SDL_GPU: Added the SDL_GPU3 backend.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_sdlgpu3.h"
+#include "imgui_impl_sdlgpu3_shaders.h"
+
+// SDL_GPU Data
+
+// Reusable buffers used for rendering 1 current in-flight frame, for ImGui_ImplSDLGPU3_RenderDrawData()
+struct ImGui_ImplSDLGPU3_FrameData
+{
+    SDL_GPUBuffer*          VertexBuffer            = nullptr;
+    SDL_GPUTransferBuffer*  VertexTransferBuffer    = nullptr;
+    uint32_t                VertexBufferSize        = 0;
+    SDL_GPUBuffer*          IndexBuffer             = nullptr;
+    SDL_GPUTransferBuffer*  IndexTransferBuffer     = nullptr;
+    uint32_t                IndexBufferSize         = 0;
+};
+
+struct ImGui_ImplSDLGPU3_Data
+{
+    ImGui_ImplSDLGPU3_InitInfo   InitInfo;
+
+    // Graphics pipeline & shaders
+    SDL_GPUShader*               VertexShader           = nullptr;
+    SDL_GPUShader*               FragmentShader         = nullptr;
+    SDL_GPUGraphicsPipeline*     Pipeline               = nullptr;
+    SDL_GPUSampler*              TexSamplerLinear       = nullptr;
+    SDL_GPUTransferBuffer*       TexTransferBuffer      = nullptr;
+    uint32_t                     TexTransferBufferSize  = 0;
+
+    // Frame data for main window
+    ImGui_ImplSDLGPU3_FrameData  MainWindowFrameData;
+};
+
+// Forward Declarations
+static void ImGui_ImplSDLGPU3_DestroyFrameData();
+
+//-----------------------------------------------------------------------------
+// FUNCTIONS
+//-----------------------------------------------------------------------------
+
+// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+// FIXME: multi-context support has never been tested.
+static ImGui_ImplSDLGPU3_Data* ImGui_ImplSDLGPU3_GetBackendData()
+{
+    return ImGui::GetCurrentContext() ? (ImGui_ImplSDLGPU3_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
+}
+
+static void ImGui_ImplSDLGPU3_SetupRenderState(ImDrawData* draw_data, ImGui_ImplSDLGPU3_RenderState* render_state, SDL_GPUGraphicsPipeline* pipeline, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, ImGui_ImplSDLGPU3_FrameData* fd, uint32_t fb_width, uint32_t fb_height)
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    render_state->SamplerCurrent = bd->TexSamplerLinear;
+
+    // Bind graphics pipeline
+    SDL_BindGPUGraphicsPipeline(render_pass, pipeline);
+
+    // Bind Vertex And Index Buffers
+    if (draw_data->TotalVtxCount > 0)
+    {
+        SDL_GPUBufferBinding vertex_buffer_binding = {};
+        vertex_buffer_binding.buffer = fd->VertexBuffer;
+        vertex_buffer_binding.offset = 0;
+        SDL_GPUBufferBinding index_buffer_binding = {};
+        index_buffer_binding.buffer = fd->IndexBuffer;
+        index_buffer_binding.offset = 0;
+        SDL_BindGPUVertexBuffers(render_pass,0, &vertex_buffer_binding, 1);
+        SDL_BindGPUIndexBuffer(render_pass, &index_buffer_binding, sizeof(ImDrawIdx) == 2 ? SDL_GPU_INDEXELEMENTSIZE_16BIT : SDL_GPU_INDEXELEMENTSIZE_32BIT);
+    }
+
+    // Setup viewport
+    SDL_GPUViewport viewport = {};
+    viewport.x = 0;
+    viewport.y = 0;
+    viewport.w = (float)fb_width;
+    viewport.h = (float)fb_height;
+    viewport.min_depth = 0.0f;
+    viewport.max_depth = 1.0f;
+    SDL_SetGPUViewport(render_pass, &viewport);
+
+    // Setup scale and translation
+    // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
+    struct UBO { float scale[2]; float translation[2]; } ubo;
+    ubo.scale[0] = 2.0f / draw_data->DisplaySize.x;
+    ubo.scale[1] = 2.0f / draw_data->DisplaySize.y;
+    ubo.translation[0] = -1.0f - draw_data->DisplayPos.x * ubo.scale[0];
+    ubo.translation[1] = -1.0f - draw_data->DisplayPos.y * ubo.scale[1];
+    SDL_PushGPUVertexUniformData(command_buffer, 0, &ubo, sizeof(UBO));
+}
+
+static void CreateOrResizeBuffers(SDL_GPUBuffer** buffer, SDL_GPUTransferBuffer** transferbuffer, uint32_t* old_size, uint32_t new_size, SDL_GPUBufferUsageFlags usage)
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
+
+    // FIXME-OPT: Not optimal, but this is fairly rarely called.
+    SDL_WaitForGPUIdle(v->Device);
+    SDL_ReleaseGPUBuffer(v->Device, *buffer);
+    SDL_ReleaseGPUTransferBuffer(v->Device, *transferbuffer);
+
+    SDL_GPUBufferCreateInfo buffer_info = {};
+    buffer_info.usage = usage;
+    buffer_info.size = new_size;
+    buffer_info.props = 0;
+    *buffer = SDL_CreateGPUBuffer(v->Device, &buffer_info);
+    *old_size = new_size;
+    IM_ASSERT(*buffer != nullptr && "Failed to create GPU Buffer, call SDL_GetError() for more information");
+
+    SDL_GPUTransferBufferCreateInfo transferbuffer_info = {};
+    transferbuffer_info.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD;
+    transferbuffer_info.size = new_size;
+    *transferbuffer = SDL_CreateGPUTransferBuffer(v->Device, &transferbuffer_info);
+    IM_ASSERT(*transferbuffer != nullptr && "Failed to create GPU Transfer Buffer, call SDL_GetError() for more information");
+}
+
+// SDL_GPU doesn't allow copy passes to occur while a render or compute pass is bound!
+// The only way to allow a user to supply their own RenderPass (to render to a texture instead of the window for example),
+// is to split the upload part of ImGui_ImplSDLGPU3_RenderDrawData() to another function that needs to be called by the user before rendering.
+void ImGui_ImplSDLGPU3_PrepareDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer)
+{
+    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
+    int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
+    if (fb_width <= 0 || fb_height <= 0 || draw_data->TotalVtxCount <= 0)
+        return;
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplSDLGPU3_UpdateTexture(tex);
+
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
+    ImGui_ImplSDLGPU3_FrameData* fd = &bd->MainWindowFrameData;
+
+    uint32_t vertex_size = draw_data->TotalVtxCount * sizeof(ImDrawVert);
+    uint32_t index_size  = draw_data->TotalIdxCount * sizeof(ImDrawIdx);
+    if (fd->VertexBuffer == nullptr || fd->VertexBufferSize < vertex_size)
+        CreateOrResizeBuffers(&fd->VertexBuffer, &fd->VertexTransferBuffer, &fd->VertexBufferSize, vertex_size, SDL_GPU_BUFFERUSAGE_VERTEX);
+    if (fd->IndexBuffer == nullptr || fd->IndexBufferSize < index_size)
+        CreateOrResizeBuffers(&fd->IndexBuffer, &fd->IndexTransferBuffer, &fd->IndexBufferSize, index_size, SDL_GPU_BUFFERUSAGE_INDEX);
+
+    ImDrawVert* vtx_dst = (ImDrawVert*)SDL_MapGPUTransferBuffer(v->Device, fd->VertexTransferBuffer, true);
+    ImDrawIdx* idx_dst = (ImDrawIdx*)SDL_MapGPUTransferBuffer(v->Device, fd->IndexTransferBuffer, true);
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        memcpy(vtx_dst, draw_list->VtxBuffer.Data, draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
+        memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
+        vtx_dst += draw_list->VtxBuffer.Size;
+        idx_dst += draw_list->IdxBuffer.Size;
+    }
+    SDL_UnmapGPUTransferBuffer(v->Device, fd->VertexTransferBuffer);
+    SDL_UnmapGPUTransferBuffer(v->Device, fd->IndexTransferBuffer);
+
+    SDL_GPUTransferBufferLocation vertex_buffer_location = {};
+    vertex_buffer_location.offset = 0;
+    vertex_buffer_location.transfer_buffer = fd->VertexTransferBuffer;
+    SDL_GPUTransferBufferLocation index_buffer_location = {};
+    index_buffer_location.offset = 0;
+    index_buffer_location.transfer_buffer = fd->IndexTransferBuffer;
+
+    SDL_GPUBufferRegion vertex_buffer_region = {};
+    vertex_buffer_region.buffer = fd->VertexBuffer;
+    vertex_buffer_region.offset = 0;
+    vertex_buffer_region.size = vertex_size;
+
+    SDL_GPUBufferRegion index_buffer_region = {};
+    index_buffer_region.buffer = fd->IndexBuffer;
+    index_buffer_region.offset = 0;
+    index_buffer_region.size = index_size;
+
+    SDL_GPUCopyPass* copy_pass = SDL_BeginGPUCopyPass(command_buffer);
+    SDL_UploadToGPUBuffer(copy_pass, &vertex_buffer_location, &vertex_buffer_region, true);
+    SDL_UploadToGPUBuffer(copy_pass, &index_buffer_location, &index_buffer_region, true);
+    SDL_EndGPUCopyPass(copy_pass);
+}
+
+void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, SDL_GPUGraphicsPipeline* pipeline)
+{
+    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
+    int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
+    if (fb_width <= 0 || fb_height <= 0)
+        return;
+
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    ImGui_ImplSDLGPU3_FrameData* fd = &bd->MainWindowFrameData;
+
+    if (pipeline == nullptr)
+        pipeline = bd->Pipeline;
+
+    // Will project scissor/clipping rectangles into framebuffer space
+    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
+    ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
+
+    // Setup render state structure (for callbacks and custom texture bindings)
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    ImGui_ImplSDLGPU3_RenderState render_state;
+    render_state.Device = bd->InitInfo.Device;
+    render_state.SamplerDefault = render_state.SamplerCurrent = bd->TexSamplerLinear;
+    platform_io.Renderer_RenderState = &render_state;
+
+    ImGui_ImplSDLGPU3_SetupRenderState(draw_data, &render_state, pipeline, command_buffer, render_pass, fd, fb_width, fb_height);
+
+    // Render command lists
+    // (Because we merged all buffers into a single one, we maintain our own offset into them)
+    int global_vtx_offset = 0;
+    int global_idx_offset = 0;
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback != nullptr)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplSDLGPU3_SetupRenderState(draw_data, &render_state, pipeline, command_buffer, render_pass, fd, fb_width, fb_height);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
+                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+
+                // Clamp to viewport as SDL_SetGPUScissor() won't accept values that are off bounds
+                if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
+                if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
+                if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
+                if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                // Apply scissor/clipping rectangle
+                SDL_Rect scissor_rect = {};
+                scissor_rect.x = (int)clip_min.x;
+                scissor_rect.y = (int)clip_min.y;
+                scissor_rect.w = (int)(clip_max.x - clip_min.x);
+                scissor_rect.h = (int)(clip_max.y - clip_min.y);
+                SDL_SetGPUScissor(render_pass,&scissor_rect);
+
+                // Bind DescriptorSet with font or user texture
+                SDL_GPUTextureSamplerBinding texture_sampler_binding;
+                texture_sampler_binding.texture = (SDL_GPUTexture*)(intptr_t)pcmd->GetTexID();
+                texture_sampler_binding.sampler = render_state.SamplerCurrent;
+                SDL_BindGPUFragmentSamplers(render_pass, 0, &texture_sampler_binding, 1);
+
+                // Draw
+                // **IF YOU GET A CRASH HERE** In 1.92.2 on 2025/08/08 we have changed ImTextureID to store 'SDL_GPUTexture*' instead of storing 'SDL_GPUTextureSamplerBinding'.
+                // Any code loading custom texture using this backend needs to be updated.
+                SDL_DrawGPUIndexedPrimitives(render_pass, pcmd->ElemCount, 1, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset, 0);
+            }
+        }
+        global_idx_offset += draw_list->IdxBuffer.Size;
+        global_vtx_offset += draw_list->VtxBuffer.Size;
+    }
+
+    // Note: at this point both SDL_SetGPUViewport() and SDL_SetGPUScissor() have been called.
+    // Our last values will leak into user/application rendering if you forgot to call SDL_SetGPUViewport() and SDL_SetGPUScissor() yourself to explicitly set that state
+    // In theory we should aim to backup/restore those values but I am not sure this is possible.
+    // We perform a call to SDL_SetGPUScissor() to set back a full viewport which is likely to fix things for 99% users but technically this is not perfect. (See github #4644)
+    SDL_Rect scissor_rect { 0, 0, fb_width, fb_height };
+    SDL_SetGPUScissor(render_pass, &scissor_rect);
+}
+
+static void ImGui_ImplSDLGPU3_DestroyTexture(ImTextureData* tex)
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    if (SDL_GPUTexture* raw_tex = (SDL_GPUTexture*)(intptr_t)tex->GetTexID())
+        SDL_ReleaseGPUTexture(bd->InitInfo.Device, raw_tex);
+
+    // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+    tex->SetTexID(ImTextureID_Invalid);
+    tex->SetStatus(ImTextureStatus_Destroyed);
+}
+
+void ImGui_ImplSDLGPU3_UpdateTexture(ImTextureData* tex)
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
+
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+
+        // Create texture
+        SDL_GPUTextureCreateInfo texture_info = {};
+        texture_info.type = SDL_GPU_TEXTURETYPE_2D;
+        texture_info.format = SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM;
+        texture_info.usage = SDL_GPU_TEXTUREUSAGE_SAMPLER;
+        texture_info.width = tex->Width;
+        texture_info.height = tex->Height;
+        texture_info.layer_count_or_depth = 1;
+        texture_info.num_levels = 1;
+        texture_info.sample_count = SDL_GPU_SAMPLECOUNT_1;
+
+        SDL_GPUTexture* raw_tex = SDL_CreateGPUTexture(v->Device, &texture_info);
+        IM_ASSERT(raw_tex != nullptr && "Failed to create texture, call SDL_GetError() for more info");
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)raw_tex);
+    }
+
+    if (tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantUpdates)
+    {
+        SDL_GPUTexture* raw_tex = (SDL_GPUTexture*)(intptr_t)tex->GetTexID();
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+
+        // Update full texture or selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->UpdateRect but you can use tex->Updates[] to upload individual regions.
+        // We could use the smaller rect on _WantCreate but using the full rect allows us to clear the texture.
+        const int upload_x = (tex->Status == ImTextureStatus_WantCreate) ? 0 : tex->UpdateRect.x;
+        const int upload_y = (tex->Status == ImTextureStatus_WantCreate) ? 0 : tex->UpdateRect.y;
+        const int upload_w = (tex->Status == ImTextureStatus_WantCreate) ? tex->Width : tex->UpdateRect.w;
+        const int upload_h = (tex->Status == ImTextureStatus_WantCreate) ? tex->Height : tex->UpdateRect.h;
+        uint32_t upload_pitch = upload_w * tex->BytesPerPixel;
+        uint32_t upload_size = upload_w * upload_h * tex->BytesPerPixel;
+
+        // Create transfer buffer
+        if (bd->TexTransferBufferSize < upload_size)
+        {
+            SDL_ReleaseGPUTransferBuffer(v->Device, bd->TexTransferBuffer);
+            SDL_GPUTransferBufferCreateInfo transferbuffer_info = {};
+            transferbuffer_info.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD;
+            transferbuffer_info.size = upload_size + 1024;
+            bd->TexTransferBufferSize = upload_size + 1024;
+            bd->TexTransferBuffer = SDL_CreateGPUTransferBuffer(v->Device, &transferbuffer_info);
+            IM_ASSERT(bd->TexTransferBuffer != nullptr && "Failed to create transfer buffer, call SDL_GetError() for more information");
+        }
+
+        // Copy to transfer buffer
+        {
+            void* texture_ptr = SDL_MapGPUTransferBuffer(v->Device, bd->TexTransferBuffer, true);
+            for (int y = 0; y < upload_h; y++)
+                memcpy((void*)((uintptr_t)texture_ptr + y * upload_pitch), tex->GetPixelsAt(upload_x, upload_y + y), upload_pitch);
+            SDL_UnmapGPUTransferBuffer(v->Device, bd->TexTransferBuffer);
+        }
+
+        SDL_GPUTextureTransferInfo transfer_info = {};
+        transfer_info.offset = 0;
+        transfer_info.transfer_buffer = bd->TexTransferBuffer;
+
+        SDL_GPUTextureRegion texture_region = {};
+        texture_region.texture = raw_tex;
+        texture_region.x = (Uint32)upload_x;
+        texture_region.y = (Uint32)upload_y;
+        texture_region.w = (Uint32)upload_w;
+        texture_region.h = (Uint32)upload_h;
+        texture_region.d = 1;
+
+        // Upload
+        {
+            SDL_GPUCommandBuffer* cmd = SDL_AcquireGPUCommandBuffer(v->Device);
+            SDL_GPUCopyPass* copy_pass = SDL_BeginGPUCopyPass(cmd);
+            SDL_UploadToGPUTexture(copy_pass, &transfer_info, &texture_region, false);
+            SDL_EndGPUCopyPass(copy_pass);
+            SDL_SubmitGPUCommandBuffer(cmd);
+        }
+
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
+        ImGui_ImplSDLGPU3_DestroyTexture(tex);
+}
+
+static void ImGui_ImplSDLGPU3_CreateShaders()
+{
+    // Create the shader modules
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
+
+    const char* driver = SDL_GetGPUDeviceDriver(v->Device);
+
+    SDL_GPUShaderCreateInfo vertex_shader_info = {};
+    vertex_shader_info.entrypoint = "main";
+    vertex_shader_info.stage = SDL_GPU_SHADERSTAGE_VERTEX;
+    vertex_shader_info.num_uniform_buffers  = 1;
+    vertex_shader_info.num_storage_buffers = 0;
+    vertex_shader_info.num_storage_textures = 0;
+    vertex_shader_info.num_samplers = 0;
+
+    SDL_GPUShaderCreateInfo fragment_shader_info = {};
+    fragment_shader_info.entrypoint = "main";
+    fragment_shader_info.stage = SDL_GPU_SHADERSTAGE_FRAGMENT;
+    fragment_shader_info.num_samplers = 1;
+    fragment_shader_info.num_storage_buffers  = 0;
+    fragment_shader_info.num_storage_textures = 0;
+    fragment_shader_info.num_uniform_buffers  = 0;
+
+    if (strcmp(driver, "vulkan") == 0)
+    {
+        vertex_shader_info.format = SDL_GPU_SHADERFORMAT_SPIRV;
+        vertex_shader_info.code = spirv_vertex;
+        vertex_shader_info.code_size = sizeof(spirv_vertex);
+        fragment_shader_info.format = SDL_GPU_SHADERFORMAT_SPIRV;
+        fragment_shader_info.code = spirv_fragment;
+        fragment_shader_info.code_size = sizeof(spirv_fragment);
+    }
+    else if (strcmp(driver, "direct3d12") == 0)
+    {
+        vertex_shader_info.format   = SDL_GPU_SHADERFORMAT_DXBC;
+        vertex_shader_info.code = dxbc_vertex;
+        vertex_shader_info.code_size = sizeof(dxbc_vertex);
+        fragment_shader_info.format = SDL_GPU_SHADERFORMAT_DXBC;
+        fragment_shader_info.code = dxbc_fragment;
+        fragment_shader_info.code_size = sizeof(dxbc_fragment);
+    }
+#ifdef __APPLE__
+    else
+    {
+        vertex_shader_info.entrypoint = "main0";
+        vertex_shader_info.format = SDL_GPU_SHADERFORMAT_METALLIB;
+        vertex_shader_info.code = metallib_vertex;
+        vertex_shader_info.code_size = sizeof(metallib_vertex);
+        fragment_shader_info.entrypoint = "main0";
+        fragment_shader_info.format = SDL_GPU_SHADERFORMAT_METALLIB;
+        fragment_shader_info.code = metallib_fragment;
+        fragment_shader_info.code_size = sizeof(metallib_fragment);
+    }
+#endif
+    bd->VertexShader = SDL_CreateGPUShader(v->Device, &vertex_shader_info);
+    bd->FragmentShader = SDL_CreateGPUShader(v->Device, &fragment_shader_info);
+    IM_ASSERT(bd->VertexShader != nullptr && "Failed to create vertex shader, call SDL_GetError() for more information");
+    IM_ASSERT(bd->FragmentShader != nullptr && "Failed to create fragment shader, call SDL_GetError() for more information");
+}
+
+static void ImGui_ImplSDLGPU3_CreateGraphicsPipeline()
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
+    ImGui_ImplSDLGPU3_CreateShaders();
+
+    SDL_GPUVertexBufferDescription vertex_buffer_desc[1];
+    vertex_buffer_desc[0].slot = 0;
+    vertex_buffer_desc[0].input_rate = SDL_GPU_VERTEXINPUTRATE_VERTEX;
+    vertex_buffer_desc[0].instance_step_rate = 0;
+    vertex_buffer_desc[0].pitch = sizeof(ImDrawVert);
+
+    SDL_GPUVertexAttribute vertex_attributes[3];
+    vertex_attributes[0].buffer_slot = 0;
+    vertex_attributes[0].format = SDL_GPU_VERTEXELEMENTFORMAT_FLOAT2;
+    vertex_attributes[0].location = 0;
+    vertex_attributes[0].offset = offsetof(ImDrawVert,pos);
+
+    vertex_attributes[1].buffer_slot = 0;
+    vertex_attributes[1].format = SDL_GPU_VERTEXELEMENTFORMAT_FLOAT2;
+    vertex_attributes[1].location = 1;
+    vertex_attributes[1].offset = offsetof(ImDrawVert, uv);
+
+    vertex_attributes[2].buffer_slot = 0;
+    vertex_attributes[2].format = SDL_GPU_VERTEXELEMENTFORMAT_UBYTE4_NORM;
+    vertex_attributes[2].location = 2;
+    vertex_attributes[2].offset = offsetof(ImDrawVert, col);
+
+    SDL_GPUVertexInputState vertex_input_state = {};
+    vertex_input_state.num_vertex_attributes = 3;
+    vertex_input_state.vertex_attributes = vertex_attributes;
+    vertex_input_state.num_vertex_buffers = 1;
+    vertex_input_state.vertex_buffer_descriptions = vertex_buffer_desc;
+
+    SDL_GPURasterizerState rasterizer_state = {};
+    rasterizer_state.fill_mode = SDL_GPU_FILLMODE_FILL;
+    rasterizer_state.cull_mode = SDL_GPU_CULLMODE_NONE;
+    rasterizer_state.front_face = SDL_GPU_FRONTFACE_COUNTER_CLOCKWISE;
+    rasterizer_state.enable_depth_bias = false;
+    rasterizer_state.enable_depth_clip = false;
+
+    SDL_GPUMultisampleState multisample_state = {};
+    multisample_state.sample_count = v->MSAASamples;
+    multisample_state.enable_mask = false;
+
+    SDL_GPUDepthStencilState depth_stencil_state = {};
+    depth_stencil_state.enable_depth_test = false;
+    depth_stencil_state.enable_depth_write = false;
+    depth_stencil_state.enable_stencil_test = false;
+
+    SDL_GPUColorTargetBlendState blend_state = {};
+    blend_state.enable_blend = true;
+    blend_state.src_color_blendfactor = SDL_GPU_BLENDFACTOR_SRC_ALPHA;
+    blend_state.dst_color_blendfactor = SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_ALPHA;
+    blend_state.color_blend_op = SDL_GPU_BLENDOP_ADD;
+    blend_state.src_alpha_blendfactor = SDL_GPU_BLENDFACTOR_ONE;
+    blend_state.dst_alpha_blendfactor = SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_ALPHA;
+    blend_state.alpha_blend_op = SDL_GPU_BLENDOP_ADD;
+    blend_state.color_write_mask = SDL_GPU_COLORCOMPONENT_R | SDL_GPU_COLORCOMPONENT_G | SDL_GPU_COLORCOMPONENT_B | SDL_GPU_COLORCOMPONENT_A;
+
+    SDL_GPUColorTargetDescription color_target_desc[1];
+    color_target_desc[0].format = v->ColorTargetFormat;
+    color_target_desc[0].blend_state = blend_state;
+
+    SDL_GPUGraphicsPipelineTargetInfo target_info = {};
+    target_info.num_color_targets = 1;
+    target_info.color_target_descriptions = color_target_desc;
+    target_info.has_depth_stencil_target = false;
+
+    SDL_GPUGraphicsPipelineCreateInfo pipeline_info = {};
+    pipeline_info.vertex_shader = bd->VertexShader;
+    pipeline_info.fragment_shader = bd->FragmentShader;
+    pipeline_info.vertex_input_state = vertex_input_state;
+    pipeline_info.primitive_type = SDL_GPU_PRIMITIVETYPE_TRIANGLELIST;
+    pipeline_info.rasterizer_state = rasterizer_state;
+    pipeline_info.multisample_state = multisample_state;
+    pipeline_info.depth_stencil_state = depth_stencil_state;
+    pipeline_info.target_info = target_info;
+
+    bd->Pipeline = SDL_CreateGPUGraphicsPipeline(v->Device, &pipeline_info);
+    IM_ASSERT(bd->Pipeline != nullptr && "Failed to create graphics pipeline, call SDL_GetError() for more information");
+}
+
+void ImGui_ImplSDLGPU3_CreateDeviceObjects()
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
+
+    ImGui_ImplSDLGPU3_DestroyDeviceObjects();
+
+    if (bd->TexSamplerLinear == nullptr)
+    {
+        // Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
+        SDL_GPUSamplerCreateInfo sampler_info = {};
+        sampler_info.min_filter = SDL_GPU_FILTER_LINEAR;
+        sampler_info.mag_filter = SDL_GPU_FILTER_LINEAR;
+        sampler_info.mipmap_mode = SDL_GPU_SAMPLERMIPMAPMODE_LINEAR;
+        sampler_info.address_mode_u = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
+        sampler_info.address_mode_v = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
+        sampler_info.address_mode_w = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
+        sampler_info.mip_lod_bias = 0.0f;
+        sampler_info.min_lod = -1000.0f;
+        sampler_info.max_lod = 1000.0f;
+        sampler_info.enable_anisotropy = false;
+        sampler_info.max_anisotropy = 1.0f;
+        sampler_info.enable_compare = false;
+
+        bd->TexSamplerLinear = SDL_CreateGPUSampler(v->Device, &sampler_info);
+        IM_ASSERT(bd->TexSamplerLinear != nullptr && "Failed to create sampler, call SDL_GetError() for more information");
+    }
+
+    ImGui_ImplSDLGPU3_CreateGraphicsPipeline();
+}
+
+void ImGui_ImplSDLGPU3_DestroyFrameData()
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
+
+    ImGui_ImplSDLGPU3_FrameData* fd = &bd->MainWindowFrameData;
+    SDL_ReleaseGPUBuffer(v->Device, fd->VertexBuffer);
+    SDL_ReleaseGPUBuffer(v->Device, fd->IndexBuffer);
+    SDL_ReleaseGPUTransferBuffer(v->Device, fd->VertexTransferBuffer);
+    SDL_ReleaseGPUTransferBuffer(v->Device, fd->IndexTransferBuffer);
+    fd->VertexBuffer = fd->IndexBuffer = nullptr;
+    fd->VertexTransferBuffer = fd->IndexTransferBuffer = nullptr;
+    fd->VertexBufferSize = fd->IndexBufferSize = 0;
+}
+
+void ImGui_ImplSDLGPU3_DestroyDeviceObjects()
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
+
+    ImGui_ImplSDLGPU3_DestroyFrameData();
+
+    // Destroy all textures
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+            ImGui_ImplSDLGPU3_DestroyTexture(tex);
+    if (bd->TexTransferBuffer)  { SDL_ReleaseGPUTransferBuffer(v->Device, bd->TexTransferBuffer); bd->TexTransferBuffer = nullptr; }
+    if (bd->VertexShader)       { SDL_ReleaseGPUShader(v->Device, bd->VertexShader); bd->VertexShader = nullptr; }
+    if (bd->FragmentShader)     { SDL_ReleaseGPUShader(v->Device, bd->FragmentShader); bd->FragmentShader = nullptr; }
+    if (bd->TexSamplerLinear)   { SDL_ReleaseGPUSampler(v->Device, bd->TexSamplerLinear); bd->TexSamplerLinear = nullptr; }
+    if (bd->Pipeline)           { SDL_ReleaseGPUGraphicsPipeline(v->Device, bd->Pipeline); bd->Pipeline = nullptr; }
+}
+
+static void ImGui_ImplSDLGPU3_InitMultiViewportSupport();
+static void ImGui_ImplSDLGPU3_ShutdownMultiViewportSupport();
+
+bool ImGui_ImplSDLGPU3_Init(ImGui_ImplSDLGPU3_InitInfo* info)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplSDLGPU3_Data* bd = IM_NEW(ImGui_ImplSDLGPU3_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_sdlgpu3";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
+
+    IM_ASSERT(info->Device != nullptr);
+    IM_ASSERT(info->ColorTargetFormat != SDL_GPU_TEXTUREFORMAT_INVALID);
+
+    bd->InitInfo = *info;
+
+    ImGui_ImplSDLGPU3_InitMultiViewportSupport();
+
+    return true;
+}
+
+void ImGui_ImplSDLGPU3_Shutdown()
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplSDLGPU3_ShutdownMultiViewportSupport();
+    ImGui_ImplSDLGPU3_DestroyDeviceObjects();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
+void ImGui_ImplSDLGPU3_NewFrame()
+{
+    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDLGPU3_Init()?");
+
+    if (!bd->TexSamplerLinear)
+        ImGui_ImplSDLGPU3_CreateDeviceObjects();
+}
+
+//--------------------------------------------------------------------------------------------------------
+// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
+// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
+// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
+//--------------------------------------------------------------------------------------------------------
+
+static void ImGui_ImplSDLGPU3_CreateWindow(ImGuiViewport* viewport)
+{
+    ImGui_ImplSDLGPU3_Data* data = ImGui_ImplSDLGPU3_GetBackendData();
+    SDL_Window* window = SDL_GetWindowFromID((SDL_WindowID)(intptr_t)viewport->PlatformHandle);
+    SDL_ClaimWindowForGPUDevice(data->InitInfo.Device, window);
+    SDL_SetGPUSwapchainParameters(data->InitInfo.Device, window, data->InitInfo.SwapchainComposition, data->InitInfo.PresentMode);
+    viewport->RendererUserData = (void*)1;
+}
+
+static void ImGui_ImplSDLGPU3_RenderWindow(ImGuiViewport* viewport, void*)
+{
+    ImGui_ImplSDLGPU3_Data* data = ImGui_ImplSDLGPU3_GetBackendData();
+    SDL_Window* window = SDL_GetWindowFromID((SDL_WindowID)(intptr_t)viewport->PlatformHandle);
+
+    ImDrawData* draw_data = viewport->DrawData;
+
+    SDL_GPUCommandBuffer* command_buffer = SDL_AcquireGPUCommandBuffer(data->InitInfo.Device);
+
+    SDL_GPUTexture* swapchain_texture;
+    SDL_AcquireGPUSwapchainTexture(command_buffer, window, &swapchain_texture, nullptr, nullptr);
+
+    if (swapchain_texture != nullptr)
+    {
+        ImGui_ImplSDLGPU3_PrepareDrawData(draw_data, command_buffer); // FIXME-OPT: Not optimal, may this be done earlier?
+        SDL_GPUColorTargetInfo target_info = {};
+        target_info.texture = swapchain_texture;
+        target_info.clear_color = SDL_FColor{ 0.0f,0.0f,0.0f,1.0f };
+        target_info.load_op = SDL_GPU_LOADOP_CLEAR;
+        target_info.store_op = SDL_GPU_STOREOP_STORE;
+        target_info.mip_level = 0;
+        target_info.layer_or_depth_plane = 0;
+        target_info.cycle = false;
+        SDL_GPURenderPass* render_pass = SDL_BeginGPURenderPass(command_buffer, &target_info, 1, nullptr);
+        ImGui_ImplSDLGPU3_RenderDrawData(draw_data, command_buffer, render_pass);
+        SDL_EndGPURenderPass(render_pass);
+    }
+
+    SDL_SubmitGPUCommandBuffer(command_buffer);
+}
+
+static void ImGui_ImplSDLGPU3_DestroyWindow(ImGuiViewport* viewport)
+{
+    ImGui_ImplSDLGPU3_Data* data = ImGui_ImplSDLGPU3_GetBackendData();
+    if (viewport->RendererUserData)
+    {
+        SDL_Window* window = SDL_GetWindowFromID((SDL_WindowID)(intptr_t)viewport->PlatformHandle);
+        SDL_ReleaseWindowFromGPUDevice(data->InitInfo.Device, window);
+    }
+    viewport->RendererUserData = nullptr;
+}
+
+static void ImGui_ImplSDLGPU3_InitMultiViewportSupport()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_RenderWindow = ImGui_ImplSDLGPU3_RenderWindow;
+    platform_io.Renderer_CreateWindow = ImGui_ImplSDLGPU3_CreateWindow;
+    platform_io.Renderer_DestroyWindow = ImGui_ImplSDLGPU3_DestroyWindow;
+}
+
+static void ImGui_ImplSDLGPU3_ShutdownMultiViewportSupport()
+{
+    ImGui::DestroyPlatformWindows();
+}
+
+//-----------------------------------------------------------------------------
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_sdlgpu3.h

@@ -0,0 +1,65 @@
+// dear imgui: Renderer Backend for SDL_GPU
+// This needs to be used along with the SDL3 Platform Backend
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'SDL_GPUTexture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef! **IMPORTANT** Before 2025/08/08, ImTextureID was a reference to a SDL_GPUTextureSamplerBinding struct.
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// The aim of imgui_impl_sdlgpu3.h/.cpp is to be usable in your engine without any modification.
+// IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// Important note to the reader who wish to integrate imgui_impl_sdlgpu3.cpp/.h in their own engine/app.
+// - Unlike other backends, the user must call the function ImGui_ImplSDLGPU_PrepareDrawData BEFORE issuing a SDL_GPURenderPass containing ImGui_ImplSDLGPU_RenderDrawData.
+//   Calling the function is MANDATORY, otherwise the ImGui will not upload neither the vertex nor the index buffer for the GPU. See imgui_impl_sdlgpu3.cpp for more info.
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+#include <SDL3/SDL_gpu.h>
+
+// Initialization data, for ImGui_ImplSDLGPU_Init()
+// - Remember to set ColorTargetFormat to the correct format. If you're rendering to the swapchain, call SDL_GetGPUSwapchainTextureFormat() to query the right value
+struct ImGui_ImplSDLGPU3_InitInfo
+{
+    SDL_GPUDevice*              Device                  = nullptr;
+    SDL_GPUTextureFormat        ColorTargetFormat       = SDL_GPU_TEXTUREFORMAT_INVALID;
+    SDL_GPUSampleCount          MSAASamples             = SDL_GPU_SAMPLECOUNT_1;
+    SDL_GPUSwapchainComposition SwapchainComposition    = SDL_GPU_SWAPCHAINCOMPOSITION_SDR;     // Only used in multi-viewports mode.
+    SDL_GPUPresentMode          PresentMode             = SDL_GPU_PRESENTMODE_VSYNC;            // Only used in multi-viewports mode.
+};
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplSDLGPU3_Init(ImGui_ImplSDLGPU3_InitInfo* info);
+IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_PrepareDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer);
+IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, SDL_GPUGraphicsPipeline* pipeline = nullptr);
+
+// Use if you want to reset your rendering device without losing Dear ImGui state.
+IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_DestroyDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_UpdateTexture(ImTextureData* tex);
+
+// [BETA] Selected render state data shared with callbacks.
+// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplSDLGPU3_RenderDrawData() call.
+// (Please open an issue if you feel you need access to more data)
+struct ImGui_ImplSDLGPU3_RenderState
+{
+    SDL_GPUDevice*      Device;
+    SDL_GPUSampler*     SamplerDefault;     // Default sampler (bilinear filtering)
+    SDL_GPUSampler*     SamplerCurrent;     // Current sampler (may be changed by callback)
+};
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_sdlgpu3_shaders.h

@@ -0,0 +1,372 @@
+#pragma once
+#ifndef IMGUI_DISABLE
+#include <stdint.h>
+
+// Data exported using
+//   misc/fonts/binary_to_compressed_c.exe -u8 -nocompress filename symbolname >filename.h
+// With some manual pasting.
+
+// Check sdlgpu3/ folder for the shaders' source code and instruction on how to build them
+const uint8_t spirv_vertex[1732] = {
+    3,2,35,7,0,0,1,0,11,0,13,0,55,0,0,0,0,0,0,0,17,0,2,0,1,0,0,0,11,0,6,0,1,0,0,0,71,76,83,76,46,115,116,100,46,52,53,48,0,0,0,0,14,0,3,0,0,0,0,0,1,0,0,0,15,0,10,0,0,0,0,0,4,0,0,0,109,
+    97,105,110,0,0,0,0,11,0,0,0,15,0,0,0,21,0,0,0,30,0,0,0,31,0,0,0,3,0,3,0,2,0,0,0,194,1,0,0,4,0,10,0,71,76,95,71,79,79,71,76,69,95,99,112,112,95,115,116,121,108,101,95,108,105,110,101,
+    95,100,105,114,101,99,116,105,118,101,0,0,4,0,8,0,71,76,95,71,79,79,71,76,69,95,105,110,99,108,117,100,101,95,100,105,114,101,99,116,105,118,101,0,5,0,4,0,4,0,0,0,109,97,105,110,0,
+    0,0,0,5,0,3,0,9,0,0,0,0,0,0,0,6,0,5,0,9,0,0,0,0,0,0,0,67,111,108,111,114,0,0,0,6,0,4,0,9,0,0,0,1,0,0,0,85,86,0,0,5,0,3,0,11,0,0,0,79,117,116,0,5,0,4,0,15,0,0,0,97,67,111,108,111,114,
+    0,0,5,0,3,0,21,0,0,0,97,85,86,0,5,0,6,0,28,0,0,0,103,108,95,80,101,114,86,101,114,116,101,120,0,0,0,0,6,0,6,0,28,0,0,0,0,0,0,0,103,108,95,80,111,115,105,116,105,111,110,0,6,0,7,0,28,
+    0,0,0,1,0,0,0,103,108,95,80,111,105,110,116,83,105,122,101,0,0,0,0,6,0,7,0,28,0,0,0,2,0,0,0,103,108,95,67,108,105,112,68,105,115,116,97,110,99,101,0,6,0,7,0,28,0,0,0,3,0,0,0,103,108,
+    95,67,117,108,108,68,105,115,116,97,110,99,101,0,5,0,3,0,30,0,0,0,0,0,0,0,5,0,4,0,31,0,0,0,97,80,111,115,0,0,0,0,5,0,6,0,33,0,0,0,117,80,117,115,104,67,111,110,115,116,97,110,116,0,
+    0,0,6,0,5,0,33,0,0,0,0,0,0,0,117,83,99,97,108,101,0,0,6,0,6,0,33,0,0,0,1,0,0,0,117,84,114,97,110,115,108,97,116,101,0,0,5,0,3,0,35,0,0,0,112,99,0,0,71,0,4,0,11,0,0,0,30,0,0,0,0,0,0,
+    0,71,0,4,0,15,0,0,0,30,0,0,0,2,0,0,0,71,0,4,0,21,0,0,0,30,0,0,0,1,0,0,0,71,0,3,0,28,0,0,0,2,0,0,0,72,0,5,0,28,0,0,0,0,0,0,0,11,0,0,0,0,0,0,0,72,0,5,0,28,0,0,0,1,0,0,0,11,0,0,0,1,0,
+    0,0,72,0,5,0,28,0,0,0,2,0,0,0,11,0,0,0,3,0,0,0,72,0,5,0,28,0,0,0,3,0,0,0,11,0,0,0,4,0,0,0,71,0,4,0,31,0,0,0,30,0,0,0,0,0,0,0,71,0,3,0,33,0,0,0,2,0,0,0,72,0,5,0,33,0,0,0,0,0,0,0,35,
+    0,0,0,0,0,0,0,72,0,5,0,33,0,0,0,1,0,0,0,35,0,0,0,8,0,0,0,71,0,4,0,35,0,0,0,33,0,0,0,0,0,0,0,71,0,4,0,35,0,0,0,34,0,0,0,1,0,0,0,19,0,2,0,2,0,0,0,33,0,3,0,3,0,0,0,2,0,0,0,22,0,3,0,6,
+    0,0,0,32,0,0,0,23,0,4,0,7,0,0,0,6,0,0,0,4,0,0,0,23,0,4,0,8,0,0,0,6,0,0,0,2,0,0,0,30,0,4,0,9,0,0,0,7,0,0,0,8,0,0,0,32,0,4,0,10,0,0,0,3,0,0,0,9,0,0,0,59,0,4,0,10,0,0,0,11,0,0,0,3,0,0,
+    0,21,0,4,0,12,0,0,0,32,0,0,0,1,0,0,0,43,0,4,0,12,0,0,0,13,0,0,0,0,0,0,0,32,0,4,0,14,0,0,0,1,0,0,0,7,0,0,0,59,0,4,0,14,0,0,0,15,0,0,0,1,0,0,0,32,0,4,0,17,0,0,0,3,0,0,0,7,0,0,0,43,0,
+    4,0,12,0,0,0,19,0,0,0,1,0,0,0,32,0,4,0,20,0,0,0,1,0,0,0,8,0,0,0,59,0,4,0,20,0,0,0,21,0,0,0,1,0,0,0,32,0,4,0,23,0,0,0,3,0,0,0,8,0,0,0,21,0,4,0,25,0,0,0,32,0,0,0,0,0,0,0,43,0,4,0,25,
+    0,0,0,26,0,0,0,1,0,0,0,28,0,4,0,27,0,0,0,6,0,0,0,26,0,0,0,30,0,6,0,28,0,0,0,7,0,0,0,6,0,0,0,27,0,0,0,27,0,0,0,32,0,4,0,29,0,0,0,3,0,0,0,28,0,0,0,59,0,4,0,29,0,0,0,30,0,0,0,3,0,0,0,
+    59,0,4,0,20,0,0,0,31,0,0,0,1,0,0,0,30,0,4,0,33,0,0,0,8,0,0,0,8,0,0,0,32,0,4,0,34,0,0,0,2,0,0,0,33,0,0,0,59,0,4,0,34,0,0,0,35,0,0,0,2,0,0,0,32,0,4,0,36,0,0,0,2,0,0,0,8,0,0,0,43,0,4,
+    0,6,0,0,0,43,0,0,0,0,0,0,0,43,0,4,0,6,0,0,0,44,0,0,0,0,0,128,63,43,0,4,0,6,0,0,0,49,0,0,0,0,0,128,191,32,0,4,0,50,0,0,0,3,0,0,0,6,0,0,0,54,0,5,0,2,0,0,0,4,0,0,0,0,0,0,0,3,0,0,0,248,
+    0,2,0,5,0,0,0,61,0,4,0,7,0,0,0,16,0,0,0,15,0,0,0,65,0,5,0,17,0,0,0,18,0,0,0,11,0,0,0,13,0,0,0,62,0,3,0,18,0,0,0,16,0,0,0,61,0,4,0,8,0,0,0,22,0,0,0,21,0,0,0,65,0,5,0,23,0,0,0,24,0,0,
+    0,11,0,0,0,19,0,0,0,62,0,3,0,24,0,0,0,22,0,0,0,61,0,4,0,8,0,0,0,32,0,0,0,31,0,0,0,65,0,5,0,36,0,0,0,37,0,0,0,35,0,0,0,13,0,0,0,61,0,4,0,8,0,0,0,38,0,0,0,37,0,0,0,133,0,5,0,8,0,0,0,
+    39,0,0,0,32,0,0,0,38,0,0,0,65,0,5,0,36,0,0,0,40,0,0,0,35,0,0,0,19,0,0,0,61,0,4,0,8,0,0,0,41,0,0,0,40,0,0,0,129,0,5,0,8,0,0,0,42,0,0,0,39,0,0,0,41,0,0,0,81,0,5,0,6,0,0,0,45,0,0,0,42,
+    0,0,0,0,0,0,0,81,0,5,0,6,0,0,0,46,0,0,0,42,0,0,0,1,0,0,0,80,0,7,0,7,0,0,0,47,0,0,0,45,0,0,0,46,0,0,0,43,0,0,0,44,0,0,0,65,0,5,0,17,0,0,0,48,0,0,0,30,0,0,0,13,0,0,0,62,0,3,0,48,0,0,
+    0,47,0,0,0,65,0,6,0,50,0,0,0,51,0,0,0,30,0,0,0,13,0,0,0,26,0,0,0,61,0,4,0,6,0,0,0,52,0,0,0,51,0,0,0,133,0,5,0,6,0,0,0,53,0,0,0,52,0,0,0,49,0,0,0,65,0,6,0,50,0,0,0,54,0,0,0,30,0,0,0,
+    13,0,0,0,26,0,0,0,62,0,3,0,54,0,0,0,53,0,0,0,253,0,1,0,56,0,1,0,
+};
+const uint8_t spirv_fragment[844] = {
+    3,2,35,7,0,0,1,0,11,0,13,0,30,0,0,0,0,0,0,0,17,0,2,0,1,0,0,0,11,0,6,0,1,0,0,0,71,76,83,76,46,115,116,100,46,52,53,48,0,0,0,0,14,0,3,0,0,0,0,0,1,0,0,0,15,0,7,0,4,0,0,0,4,0,0,0,109,97,
+    105,110,0,0,0,0,9,0,0,0,13,0,0,0,16,0,3,0,4,0,0,0,7,0,0,0,3,0,3,0,2,0,0,0,194,1,0,0,4,0,10,0,71,76,95,71,79,79,71,76,69,95,99,112,112,95,115,116,121,108,101,95,108,105,110,101,95,100,
+    105,114,101,99,116,105,118,101,0,0,4,0,8,0,71,76,95,71,79,79,71,76,69,95,105,110,99,108,117,100,101,95,100,105,114,101,99,116,105,118,101,0,5,0,4,0,4,0,0,0,109,97,105,110,0,0,0,0,5,
+    0,4,0,9,0,0,0,102,67,111,108,111,114,0,0,5,0,3,0,11,0,0,0,0,0,0,0,6,0,5,0,11,0,0,0,0,0,0,0,67,111,108,111,114,0,0,0,6,0,4,0,11,0,0,0,1,0,0,0,85,86,0,0,5,0,3,0,13,0,0,0,73,110,0,0,5,
+    0,5,0,22,0,0,0,115,84,101,120,116,117,114,101,0,0,0,0,71,0,4,0,9,0,0,0,30,0,0,0,0,0,0,0,71,0,4,0,13,0,0,0,30,0,0,0,0,0,0,0,71,0,4,0,22,0,0,0,33,0,0,0,0,0,0,0,71,0,4,0,22,0,0,0,34,0,
+    0,0,2,0,0,0,19,0,2,0,2,0,0,0,33,0,3,0,3,0,0,0,2,0,0,0,22,0,3,0,6,0,0,0,32,0,0,0,23,0,4,0,7,0,0,0,6,0,0,0,4,0,0,0,32,0,4,0,8,0,0,0,3,0,0,0,7,0,0,0,59,0,4,0,8,0,0,0,9,0,0,0,3,0,0,0,23,
+    0,4,0,10,0,0,0,6,0,0,0,2,0,0,0,30,0,4,0,11,0,0,0,7,0,0,0,10,0,0,0,32,0,4,0,12,0,0,0,1,0,0,0,11,0,0,0,59,0,4,0,12,0,0,0,13,0,0,0,1,0,0,0,21,0,4,0,14,0,0,0,32,0,0,0,1,0,0,0,43,0,4,0,
+    14,0,0,0,15,0,0,0,0,0,0,0,32,0,4,0,16,0,0,0,1,0,0,0,7,0,0,0,25,0,9,0,19,0,0,0,6,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,27,0,3,0,20,0,0,0,19,0,0,0,32,0,4,0,21,0,0,0,0,
+    0,0,0,20,0,0,0,59,0,4,0,21,0,0,0,22,0,0,0,0,0,0,0,43,0,4,0,14,0,0,0,24,0,0,0,1,0,0,0,32,0,4,0,25,0,0,0,1,0,0,0,10,0,0,0,54,0,5,0,2,0,0,0,4,0,0,0,0,0,0,0,3,0,0,0,248,0,2,0,5,0,0,0,65,
+    0,5,0,16,0,0,0,17,0,0,0,13,0,0,0,15,0,0,0,61,0,4,0,7,0,0,0,18,0,0,0,17,0,0,0,61,0,4,0,20,0,0,0,23,0,0,0,22,0,0,0,65,0,5,0,25,0,0,0,26,0,0,0,13,0,0,0,24,0,0,0,61,0,4,0,10,0,0,0,27,0,
+    0,0,26,0,0,0,87,0,5,0,7,0,0,0,28,0,0,0,23,0,0,0,27,0,0,0,133,0,5,0,7,0,0,0,29,0,0,0,18,0,0,0,28,0,0,0,62,0,3,0,9,0,0,0,29,0,0,0,253,0,1,0,56,0,1,0,
+};
+
+const uint8_t dxbc_vertex[1064]  = {
+    68,88,66,67,32,50,127,204,241,196,165,104,216,114,216,116,220,164,29,45,1,0,0,0,40,4,0,0,5,0,0,0,52,0,0,0,136,1,0,0,236,1,0,0,92,2,0,0,140,3,0,0,82,68,69,70,76,1,0,0,1,0,0,0,116,0,
+    0,0,1,0,0,0,60,0,0,0,1,5,254,255,0,5,0,0,34,1,0,0,19,19,68,37,60,0,0,0,24,0,0,0,40,0,0,0,40,0,0,0,36,0,0,0,12,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,
+    0,1,0,0,0,1,0,0,0,0,0,0,0,117,80,117,115,104,67,111,110,115,116,97,110,116,0,171,171,100,0,0,0,2,0,0,0,140,0,0,0,16,0,0,0,0,0,0,0,0,0,0,0,220,0,0,0,0,0,0,0,8,0,0,0,2,0,0,0,240,0,0,
+    0,0,0,0,0,255,255,255,255,0,0,0,0,255,255,255,255,0,0,0,0,20,1,0,0,8,0,0,0,8,0,0,0,2,0,0,0,240,0,0,0,0,0,0,0,255,255,255,255,0,0,0,0,255,255,255,255,0,0,0,0,112,99,95,117,83,99,97,
+    108,101,0,102,108,111,97,116,50,0,171,171,171,1,0,3,0,1,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,230,0,0,0,112,99,95,117,84,114,97,110,115,108,97,116,101,0,77,105,99,114,
+    111,115,111,102,116,32,40,82,41,32,72,76,83,76,32,83,104,97,100,101,114,32,67,111,109,112,105,108,101,114,32,49,48,46,49,0,171,171,73,83,71,78,92,0,0,0,3,0,0,0,8,0,0,0,80,0,0,0,0,0,
+    0,0,0,0,0,0,3,0,0,0,0,0,0,0,3,3,0,0,80,0,0,0,1,0,0,0,0,0,0,0,3,0,0,0,1,0,0,0,3,3,0,0,80,0,0,0,2,0,0,0,0,0,0,0,3,0,0,0,2,0,0,0,15,15,0,0,84,69,88,67,79,79,82,68,0,171,171,171,79,83,
+    71,78,104,0,0,0,3,0,0,0,8,0,0,0,80,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,15,0,0,0,80,0,0,0,1,0,0,0,0,0,0,0,3,0,0,0,1,0,0,0,3,12,0,0,89,0,0,0,0,0,0,0,1,0,0,0,3,0,0,0,2,0,0,0,15,0,0,
+    0,84,69,88,67,79,79,82,68,0,83,86,95,80,111,115,105,116,105,111,110,0,171,171,171,83,72,69,88,40,1,0,0,81,0,1,0,74,0,0,0,106,8,0,1,89,0,0,7,70,142,48,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+    0,0,1,0,0,0,95,0,0,3,50,16,16,0,0,0,0,0,95,0,0,3,50,16,16,0,1,0,0,0,95,0,0,3,242,16,16,0,2,0,0,0,101,0,0,3,242,32,16,0,0,0,0,0,101,0,0,3,50,32,16,0,1,0,0,0,103,0,0,4,242,32,16,0,2,
+    0,0,0,1,0,0,0,104,0,0,2,1,0,0,0,50,0,0,13,50,0,16,0,0,0,0,0,70,16,16,0,0,0,0,0,70,128,48,0,0,0,0,0,0,0,0,0,0,0,0,0,230,138,48,0,0,0,0,0,0,0,0,0,0,0,0,0,54,0,0,6,34,32,16,0,2,0,0,0,
+    26,0,16,128,65,0,0,0,0,0,0,0,54,0,0,5,242,32,16,0,0,0,0,0,70,30,16,0,2,0,0,0,54,0,0,5,18,32,16,0,2,0,0,0,10,0,16,0,0,0,0,0,54,0,0,8,194,32,16,0,2,0,0,0,2,64,0,0,0,0,0,0,0,0,0,0,0,0,
+    0,0,0,0,128,63,54,0,0,5,50,32,16,0,1,0,0,0,70,16,16,0,1,0,0,0,62,0,0,1,83,84,65,84,148,0,0,0,7,0,0,0,1,0,0,0,0,0,0,0,6,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+};
+const uint8_t dxbc_fragment[744]  = {
+    68,88,66,67,235,219,43,109,38,151,39,223,98,41,193,28,215,98,67,110,1,0,0,0,232,2,0,0,5,0,0,0,52,0,0,0,12,1,0,0,88,1,0,0,140,1,0,0,76,2,0,0,82,68,69,70,208,0,0,0,0,0,0,0,0,0,0,0,2,
+    0,0,0,60,0,0,0,1,5,255,255,0,5,0,0,167,0,0,0,19,19,68,37,60,0,0,0,24,0,0,0,40,0,0,0,40,0,0,0,36,0,0,0,12,0,0,0,0,0,0,0,140,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,
+    0,0,2,0,0,0,0,0,0,0,158,0,0,0,2,0,0,0,5,0,0,0,4,0,0,0,255,255,255,255,0,0,0,0,1,0,0,0,12,0,0,0,2,0,0,0,0,0,0,0,95,115,84,101,120,116,117,114,101,95,115,97,109,112,108,101,114,0,115,
+    84,101,120,116,117,114,101,0,77,105,99,114,111,115,111,102,116,32,40,82,41,32,72,76,83,76,32,83,104,97,100,101,114,32,67,111,109,112,105,108,101,114,32,49,48,46,49,0,171,73,83,71,78,
+    68,0,0,0,2,0,0,0,8,0,0,0,56,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,15,15,0,0,56,0,0,0,1,0,0,0,0,0,0,0,3,0,0,0,1,0,0,0,3,3,0,0,84,69,88,67,79,79,82,68,0,171,171,171,79,83,71,78,44,0,
+    0,0,1,0,0,0,8,0,0,0,32,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,15,0,0,0,83,86,95,84,97,114,103,101,116,0,171,171,83,72,69,88,184,0,0,0,81,0,0,0,46,0,0,0,106,8,0,1,90,0,0,6,70,110,48,
+    0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,88,24,0,7,70,126,48,0,0,0,0,0,0,0,0,0,0,0,0,0,85,85,0,0,2,0,0,0,98,16,0,3,242,16,16,0,0,0,0,0,98,16,0,3,50,16,16,0,1,0,0,0,101,0,0,3,242,32,16,0,0,
+    0,0,0,104,0,0,2,1,0,0,0,69,0,0,11,242,0,16,0,0,0,0,0,70,16,16,0,1,0,0,0,70,126,32,0,0,0,0,0,0,0,0,0,0,96,32,0,0,0,0,0,0,0,0,0,56,0,0,7,242,32,16,0,0,0,0,0,70,14,16,0,0,0,0,0,70,30,
+    16,0,0,0,0,0,62,0,0,1,83,84,65,84,148,0,0,0,3,0,0,0,1,0,0,0,0,0,0,0,3,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+};
+
+#ifdef __APPLE__
+#include <TargetConditionals.h>
+#if TARGET_OS_MAC
+const uint8_t metallib_vertex[3892]  = {
+    77,84,76,66,1,128,2,0,7,0,0,129,14,0,0,0,52,15,0,0,0,0,0,0,88,0,0,0,0,0,0,0,123,0,0,0,0,0,0,0,219,0,0,0,0,0,0,0,49,0,0,0,0,0,0,0,12,1,0,0,0,0,0,0,8,0,0,0,0,0,0,0,20,1,0,0,0,0,0,0,32,
+    14,0,0,0,0,0,0,1,0,0,0,123,0,0,0,78,65,77,69,6,0,109,97,105,110,48,0,84,89,80,69,1,0,0,72,65,83,72,32,0,62,81,190,157,8,240,236,158,164,213,65,62,170,226,96,136,231,243,238,160,100,
+    26,13,254,254,64,19,129,180,3,149,75,77,68,83,90,8,0,32,14,0,0,0,0,0,0,79,70,70,84,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,86,69,82,83,8,0,2,0,6,0,3,0,1,0,69,78,68,84,
+    69,78,68,84,45,0,0,0,86,65,84,84,24,0,3,0,97,80,111,115,0,0,128,97,85,86,0,1,128,97,67,111,108,111,114,0,2,128,86,65,84,89,5,0,3,0,4,4,6,69,78,68,84,4,0,0,0,69,78,68,84,222,192,23,
+    11,0,0,0,0,20,0,0,0,8,14,0,0,255,255,255,255,66,67,192,222,53,20,0,0,3,0,0,0,98,12,48,36,128,16,5,200,20,0,0,0,33,12,0,0,74,3,0,0,11,2,33,0,2,0,0,0,22,0,0,0,7,129,35,145,65,200,4,73,
+    6,16,50,57,146,1,132,12,37,5,8,25,30,4,139,98,128,16,69,2,66,146,11,66,132,16,50,20,56,8,24,75,10,50,66,136,72,112,196,33,35,68,18,135,140,16,65,146,2,100,200,8,177,20,32,67,70,136,
+    32,201,1,50,66,132,24,42,40,42,144,49,124,176,92,145,32,196,200,0,0,0,137,32,0,0,24,0,0,0,50,34,8,9,32,98,70,0,33,43,36,152,16,33,37,36,152,16,25,39,12,133,164,144,96,66,100,92,32,
+    36,100,130,224,153,1,24,70,32,128,97,4,1,184,67,72,32,37,77,17,37,76,62,149,82,210,193,57,141,52,1,205,148,4,145,65,4,66,48,197,136,68,145,13,4,204,17,128,129,10,228,28,1,40,12,34,
+    8,194,48,2,145,140,0,0,0,0,0,81,24,0,0,100,0,0,0,27,246,35,248,255,255,255,255,1,48,5,192,15,0,56,0,254,0,144,0,10,232,3,34,28,224,1,30,228,225,29,240,161,13,204,161,30,220,97,28,218,
+    192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,128,48,7,121,8,135,118,40,135,54,128,135,119,72,7,119,160,135,114,144,7,32,28,216,129,29,0,162,29,210,193,29,218,128,29,
+    202,225,28,194,129,29,218,192,30,202,97,28,232,225,29,228,161,13,238,33,29,200,129,30,208,1,136,3,57,192,3,96,112,135,119,104,3,113,168,135,116,96,7,122,72,7,119,152,7,128,112,135,
+    119,104,131,116,112,7,115,152,135,54,48,7,120,104,131,118,8,7,122,64,7,128,30,228,161,30,202,1,32,220,225,29,218,192,29,194,193,29,230,161,13,204,1,30,218,160,29,194,129,30,208,1,160,
+    7,121,168,135,114,0,8,119,120,135,54,152,135,116,56,7,119,40,7,114,104,3,125,40,7,121,120,135,121,104,3,115,128,135,54,104,135,112,160,7,116,0,232,65,30,234,161,28,0,194,29,222,161,
+    13,232,65,30,194,1,30,224,33,29,220,225,28,218,160,29,194,129,30,208,1,160,7,121,168,135,114,0,136,121,160,135,112,24,135,117,104,3,120,144,135,119,160,135,114,24,7,122,120,7,121,104,
+    3,113,168,7,115,48,135,114,144,135,54,152,135,116,208,135,114,0,240,0,32,234,193,29,230,33,28,204,161,28,218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,96,195,24,8,
+    4,176,0,164,0,84,65,128,4,105,0,13,225,144,14,242,208,6,226,80,15,230,96,14,229,32,15,109,224,14,239,208,6,225,192,14,233,16,14,243,0,0,0,73,24,0,0,1,0,0,0,19,132,64,0,19,176,112,72,
+    7,121,176,3,58,104,131,112,128,7,120,96,135,114,104,131,118,8,135,113,120,135,121,192,135,56,160,3,55,128,3,55,128,131,13,183,81,14,109,0,15,122,96,7,116,160,7,118,64,7,122,96,7,116,
+    208,6,233,16,7,122,128,7,122,128,7,109,144,14,120,160,7,120,160,7,120,208,6,233,16,7,118,160,7,113,96,7,122,16,7,118,208,6,233,48,7,114,160,7,115,32,7,122,48,7,114,208,6,233,96,7,116,
+    160,7,118,64,7,122,96,7,116,208,6,230,48,7,114,160,7,115,32,7,122,48,7,114,208,6,230,96,7,116,160,7,118,64,7,122,96,7,116,208,6,246,16,7,118,160,7,113,96,7,122,16,7,118,208,6,246,32,
+    7,116,160,7,115,32,7,122,48,7,114,208,6,246,48,7,114,160,7,115,32,7,122,48,7,114,208,6,246,64,7,120,160,7,118,64,7,122,96,7,116,208,6,246,96,7,116,160,7,118,64,7,122,96,7,116,208,6,
+    246,144,7,118,160,7,113,32,7,120,160,7,113,32,7,120,208,6,246,16,7,114,128,7,122,16,7,114,128,7,122,16,7,114,128,7,109,96,15,113,144,7,114,160,7,114,80,7,118,160,7,114,80,7,118,208,
+    6,246,32,7,117,96,7,122,32,7,117,96,7,122,32,7,117,96,7,109,96,15,117,16,7,114,160,7,117,16,7,114,160,7,117,16,7,114,208,6,246,16,7,112,32,7,116,160,7,113,0,7,114,64,7,122,16,7,112,
+    32,7,116,208,6,238,128,7,122,16,7,118,160,7,115,32,7,26,33,12,89,48,0,210,208,67,42,160,48,0,0,8,0,0,0,4,0,0,0,0,0,10,64,98,131,64,81,166,1,0,128,44,16,0,11,0,0,0,50,30,152,16,25,17,
+    76,144,140,9,38,71,198,4,67,202,34,40,129,66,40,135,242,41,64,129,130,40,144,98,24,1,40,3,218,17,0,210,177,132,39,0,0,0,177,24,0,0,165,0,0,0,51,8,128,28,196,225,28,102,20,1,61,136,
+    67,56,132,195,140,66,128,7,121,120,7,115,152,113,12,230,0,15,237,16,14,244,128,14,51,12,66,30,194,193,29,206,161,28,102,48,5,61,136,67,56,132,131,27,204,3,61,200,67,61,140,3,61,204,
+    120,140,116,112,7,123,8,7,121,72,135,112,112,7,122,112,3,118,120,135,112,32,135,25,204,17,14,236,144,14,225,48,15,110,48,15,227,240,14,240,80,14,51,16,196,29,222,33,28,216,33,29,194,
+    97,30,102,48,137,59,188,131,59,208,67,57,180,3,60,188,131,60,132,3,59,204,240,20,118,96,7,123,104,7,55,104,135,114,104,7,55,128,135,112,144,135,112,96,7,118,40,7,118,248,5,118,120,
+    135,119,128,135,95,8,135,113,24,135,114,152,135,121,152,129,44,238,240,14,238,224,14,245,192,14,236,48,3,98,200,161,28,228,161,28,204,161,28,228,161,28,220,97,28,202,33,28,196,129,
+    29,202,97,6,214,144,67,57,200,67,57,152,67,57,200,67,57,184,195,56,148,67,56,136,3,59,148,195,47,188,131,60,252,130,59,212,3,59,176,195,12,199,105,135,112,88,135,114,112,131,116,104,
+    7,120,96,135,116,24,135,116,160,135,25,206,83,15,238,0,15,242,80,14,228,144,14,227,64,15,225,32,14,236,80,14,51,32,40,29,220,193,30,194,65,30,210,33,28,220,129,30,220,224,28,228,225,
+    29,234,1,30,102,24,81,56,176,67,58,156,131,59,204,80,36,118,96,7,123,104,7,55,96,135,119,120,7,120,152,81,76,244,144,15,240,80,14,51,30,106,30,202,97,28,232,33,29,222,193,29,126,1,
+    30,228,161,28,204,33,29,240,97,6,84,133,131,56,204,195,59,176,67,61,208,67,57,252,194,60,228,67,59,136,195,59,176,195,140,197,10,135,121,152,135,119,24,135,116,8,7,122,40,7,114,152,
+    129,92,227,16,14,236,192,14,229,80,14,243,48,35,193,210,65,30,228,225,23,216,225,29,222,1,30,102,72,25,59,176,131,61,180,131,27,132,195,56,140,67,57,204,195,60,184,193,57,200,195,59,
+    212,3,60,204,72,180,113,8,7,118,96,7,113,8,135,113,88,135,25,219,198,14,236,96,15,237,224,6,240,32,15,229,48,15,229,32,15,246,80,14,110,16,14,227,48,14,229,48,15,243,224,6,233,224,
+    14,228,80,14,248,48,35,226,236,97,28,194,129,29,216,225,23,236,33,29,230,33,29,196,33,29,216,33,29,232,33,31,102,32,157,59,188,67,61,184,3,57,148,131,57,204,88,188,112,112,7,119,120,
+    7,122,8,7,122,72,135,119,112,135,25,206,135,14,229,16,14,240,16,14,236,192,14,239,48,14,243,144,14,244,80,14,51,40,48,8,135,116,144,7,55,48,135,122,112,135,113,160,135,116,120,7,119,
+    248,133,115,144,135,119,168,7,120,152,7,0,0,0,0,121,32,0,0,26,1,0,0,114,30,72,32,67,136,12,25,9,114,50,72,32,35,129,140,145,145,209,68,160,16,40,100,60,49,50,66,142,144,33,163,152,
+    6,100,208,82,0,0,0,139,210,88,216,6,109,80,28,20,27,71,6,209,18,25,76,178,24,6,179,64,18,49,24,202,131,68,148,161,68,87,35,0,0,0,0,83,68,75,32,86,101,114,115,105,111,110,119,99,104,
+    97,114,95,115,105,122,101,102,114,97,109,101,45,112,111,105,110,116,101,114,97,105,114,46,109,97,120,95,100,101,118,105,99,101,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,
+    95,99,111,110,115,116,97,110,116,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,104,114,101,97,100,103,114,111,117,112,95,98,117,102,102,101,114,115,97,105,114,46,109,
+    97,120,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,114,101,97,100,95,119,114,105,116,101,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,115,97,109,
+    112,108,101,114,115,65,112,112,108,101,32,109,101,116,97,108,32,118,101,114,115,105,111,110,32,51,50,48,50,51,46,51,54,56,32,40,109,101,116,97,108,102,101,45,51,50,48,50,51,46,51,54,
+    56,41,77,101,116,97,108,97,105,114,46,99,111,109,112,105,108,101,46,100,101,110,111,114,109,115,95,100,105,115,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,97,115,
+    116,95,109,97,116,104,95,101,110,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,114,97,109,101,98,117,102,102,101,114,95,102,101,116,99,104,95,101,110,97,98,108,101,
+    97,105,114,46,118,101,114,116,101,120,95,111,117,116,112,117,116,117,115,101,114,40,108,111,99,110,48,41,97,105,114,46,97,114,103,95,116,121,112,101,95,110,97,109,101,102,108,111,97,
+    116,52,97,105,114,46,97,114,103,95,110,97,109,101,79,117,116,95,67,111,108,111,114,117,115,101,114,40,108,111,99,110,49,41,102,108,111,97,116,50,79,117,116,95,85,86,97,105,114,46,112,
+    111,115,105,116,105,111,110,103,108,95,80,111,115,105,116,105,111,110,97,105,114,46,118,101,114,116,101,120,95,105,110,112,117,116,97,105,114,46,108,111,99,97,116,105,111,110,95,105,
+    110,100,101,120,97,80,111,115,97,85,86,97,67,111,108,111,114,97,105,114,46,98,117,102,102,101,114,97,105,114,46,98,117,102,102,101,114,95,115,105,122,101,97,105,114,46,114,101,97,100,
+    97,105,114,46,97,100,100,114,101,115,115,95,115,112,97,99,101,97,105,114,46,115,116,114,117,99,116,95,116,121,112,101,95,105,110,102,111,117,83,99,97,108,101,117,84,114,97,110,115,
+    108,97,116,101,97,105,114,46,97,114,103,95,116,121,112,101,95,115,105,122,101,97,105,114,46,97,114,103,95,116,121,112,101,95,97,108,105,103,110,95,115,105,122,101,117,80,117,115,104,
+    67,111,110,115,116,97,110,116,112,99,0,0,0,166,119,0,0,0,0,0,0,48,130,144,4,35,8,74,51,130,144,8,35,8,201,48,130,144,16,35,8,73,49,130,144,24,35,8,201,49,130,144,32,35,8,73,50,130,
+    144,40,35,8,201,50,130,112,0,51,12,106,16,172,193,12,3,27,8,109,48,195,224,6,131,26,204,48,184,1,241,6,51,12,110,80,188,193,12,131,27,24,111,48,195,224,6,7,28,204,48,184,1,18,7,51,
+    12,110,144,200,193,12,129,50,195,160,6,115,64,7,51,16,75,29,176,1,29,204,16,48,51,4,205,12,129,51,131,241,64,145,52,81,51,24,79,21,89,211,53,67,129,69,210,148,205,48,152,194,41,160,
+    194,12,9,29,104,27,29,176,65,100,77,220,12,9,27,104,27,27,176,65,100,77,221,12,137,26,104,155,26,176,65,36,77,222,12,10,29,196,1,29,88,100,16,7,113,64,7,86,25,204,64,213,193,7,6,114,
+    176,209,1,27,132,129,24,168,193,24,180,130,25,200,193,25,196,65,132,6,83,26,204,64,168,194,42,176,130,43,204,48,216,65,42,188,194,157,1,192,113,28,199,113,28,199,113,28,199,185,129,
+    27,184,129,27,184,129,27,184,129,27,184,129,69,7,122,96,89,22,29,208,129,27,208,1,46,224,2,46,240,3,122,128,130,140,4,38,40,35,54,54,187,54,151,182,55,178,58,182,50,23,51,182,176,179,
+    185,81,18,59,184,3,60,200,3,61,216,3,62,232,3,63,72,133,141,205,174,205,37,141,172,204,141,110,148,224,15,114,9,75,147,115,177,43,147,155,75,123,115,27,37,0,133,164,194,210,228,92,
+    216,194,220,206,234,194,206,202,190,236,202,228,230,210,222,220,70,9,66,33,167,176,52,57,151,177,183,54,184,52,182,178,175,55,56,186,180,55,183,185,81,6,81,24,5,82,72,37,44,77,206,
+    197,174,76,142,174,12,111,148,224,21,0,0,0,169,24,0,0,37,0,0,0,11,10,114,40,135,119,128,7,122,88,112,152,67,61,184,195,56,176,67,57,208,195,130,230,28,198,161,13,232,65,30,194,193,
+    29,230,33,29,232,33,29,222,193,29,22,52,227,96,14,231,80,15,225,32,15,228,64,15,225,32,15,231,80,14,244,176,128,129,7,121,40,135,112,96,7,118,120,135,113,8,7,122,40,7,114,88,112,156,
+    195,56,180,1,59,164,131,61,148,195,2,107,28,216,33,28,220,225,28,220,32,28,228,97,28,220,32,28,232,129,30,194,97,28,208,161,28,200,97,28,194,129,29,216,97,193,1,15,244,32,15,225,80,
+    15,244,128,14,0,0,0,0,209,16,0,0,6,0,0,0,7,204,60,164,131,59,156,3,59,148,3,61,160,131,60,148,67,56,144,195,1,0,0,0,97,32,0,0,68,0,0,0,19,4,65,44,16,0,0,0,11,0,0,0,148,51,0,180,37,
+    64,61,7,161,72,146,52,7,161,72,9,65,48,26,48,2,48,70,0,130,32,136,127,20,115,16,150,117,97,36,163,1,52,51,0,0,0,0,0,241,48,0,0,32,0,0,0,34,71,200,144,81,18,196,43,0,0,0,0,207,115,89,
+    0,111,109,110,105,112,111,116,101,110,116,32,99,104,97,114,83,105,109,112,108,101,32,67,43,43,32,84,66,65,65,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,115,40,109,97,105,
+    110,48,41,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,45,97,114,103,40,51,41,0,19,132,133,89,33,216,194,44,172,24,110,193,22,104,97,67,32,11,27,134,88,192,133,90,216,48,228,
+    66,46,212,194,134,224,22,0,0,157,134,5,146,40,16,130,1,36,254,157,6,103,234,40,16,130,67,0,254,131,12,1,226,12,50,4,138,51,134,48,68,22,128,255,28,195,16,76,179,13,204,5,204,54,4,89,
+    48,219,16,12,194,6,1,49,0,4,0,0,0,91,138,32,200,133,67,23,182,20,68,144,11,135,46,0,0,0,0,0,0,113,32,0,0,3,0,0,0,50,14,16,34,132,0,134,6,0,0,0,0,0,0,0,0,101,12,0,0,31,0,0,0,18,3,148,
+    240,0,0,0,0,3,0,0,0,5,0,0,0,9,0,0,0,76,0,0,0,1,0,0,0,88,0,0,0,0,0,0,0,88,0,0,0,1,0,0,0,112,0,0,0,0,0,0,0,14,0,0,0,24,0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,0,0,0,0,112,0,0,0,0,0,0,0,0,0,0,0,
+    1,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0,5,0,0,0,255,255,255,255,0,36,0,0,0,0,0,0,93,12,0,0,13,0,0,0,18,3,148,102,0,0,0,0,109,97,105,110,48,51,50,48,50,51,46,51,54,56,97,105,114,54,
+    52,45,97,112,112,108,101,45,109,97,99,111,115,120,49,52,46,48,46,48,0,0,0,0,0,0,0,0,0,0,
+};
+const uint8_t metallib_fragment[3787]  = {
+    77,84,76,66,1,128,2,0,7,0,0,129,14,0,0,0,203,14,0,0,0,0,0,0,88,0,0,0,0,0,0,0,123,0,0,0,0,0,0,0,219,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,227,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,235,0,0,0,0,0,0,0,
+    224,13,0,0,0,0,0,0,1,0,0,0,123,0,0,0,78,65,77,69,6,0,109,97,105,110,48,0,84,89,80,69,1,0,1,72,65,83,72,32,0,201,103,233,140,10,95,185,107,79,93,85,82,78,218,248,8,95,184,8,139,191,
+    155,174,56,51,95,203,135,255,117,44,62,77,68,83,90,8,0,224,13,0,0,0,0,0,0,79,70,70,84,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,86,69,82,83,8,0,2,0,6,0,3,0,1,0,69,78,68,
+    84,69,78,68,84,4,0,0,0,69,78,68,84,4,0,0,0,69,78,68,84,222,192,23,11,0,0,0,0,20,0,0,0,196,13,0,0,255,255,255,255,66,67,192,222,53,20,0,0,3,0,0,0,98,12,48,36,128,16,5,200,20,0,0,0,33,
+    12,0,0,44,3,0,0,11,2,33,0,2,0,0,0,22,0,0,0,7,129,35,145,65,200,4,73,6,16,50,57,146,1,132,12,37,5,8,25,30,4,139,98,128,20,69,2,66,146,11,66,164,16,50,20,56,8,24,75,10,50,82,136,72,112,
+    196,33,35,68,18,135,140,16,65,146,2,100,200,8,177,20,32,67,70,136,32,201,1,50,82,132,24,42,40,42,144,49,124,176,92,145,32,197,200,0,0,0,137,32,0,0,31,0,0,0,50,34,72,9,32,98,70,0,33,
+    43,36,152,20,33,37,36,152,20,25,39,12,133,164,144,96,82,100,92,32,36,101,130,128,154,1,24,70,32,128,27,132,97,4,1,64,74,154,34,74,152,252,127,34,174,137,138,136,223,30,254,105,140,
+    0,24,68,32,2,140,164,41,162,132,201,255,37,128,121,22,34,250,167,49,2,96,16,193,16,76,33,194,40,135,208,28,1,114,132,160,230,8,130,57,2,48,24,70,16,26,163,172,114,6,115,12,128,70,111,
+    32,64,5,218,8,0,0,81,24,0,0,105,0,0,0,27,246,35,248,255,255,255,255,1,104,3,96,13,0,83,0,252,0,144,128,10,232,3,34,28,224,1,30,228,225,29,240,161,13,204,161,30,220,97,28,218,192,28,
+    224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,128,48,7,121,8,135,118,40,135,54,128,135,119,72,7,119,160,135,114,144,7,32,28,216,129,29,0,162,29,210,193,29,218,128,29,202,225,
+    28,194,129,29,218,192,30,202,97,28,232,225,29,228,161,13,238,33,29,200,129,30,208,1,136,3,57,192,3,96,112,135,119,104,3,113,168,135,116,96,7,122,72,7,119,152,7,128,112,135,119,104,
+    131,116,112,7,115,152,135,54,48,7,120,104,131,118,8,7,122,64,7,128,30,228,161,30,202,1,32,220,225,29,218,192,29,194,193,29,230,161,13,204,1,30,218,160,29,194,129,30,208,1,160,7,121,
+    168,135,114,0,8,119,120,135,54,152,135,116,56,7,119,40,7,114,104,3,125,40,7,121,120,135,121,104,3,115,128,135,54,104,135,112,160,7,116,0,232,65,30,234,161,28,0,194,29,222,161,13,232,
+    65,30,194,1,30,224,33,29,220,225,28,218,160,29,194,129,30,208,1,160,7,121,168,135,114,0,136,121,160,135,112,24,135,117,104,3,120,144,135,119,160,135,114,24,7,122,120,7,121,104,3,113,
+    168,7,115,48,135,114,144,135,54,152,135,116,208,135,114,0,240,0,32,234,193,29,230,33,28,204,161,28,218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,96,131,33,12,192,
+    2,84,27,140,129,0,22,160,218,0,17,255,255,255,255,63,0,109,0,172,1,96,10,128,31,0,18,80,1,125,176,193,40,2,96,1,170,13,134,33,0,11,80,109,96,142,255,255,255,255,31,128,54,0,214,0,144,
+    128,10,232,3,0,73,24,0,0,4,0,0,0,19,134,64,24,38,12,68,97,76,24,142,194,0,0,0,0,19,176,112,72,7,121,176,3,58,104,131,112,128,7,120,96,135,114,104,131,118,8,135,113,120,135,121,192,
+    135,56,160,3,55,128,3,55,128,131,13,183,81,14,109,0,15,122,96,7,116,160,7,118,64,7,122,96,7,116,208,6,233,16,7,122,128,7,122,128,7,109,144,14,120,160,7,120,160,7,120,208,6,233,16,7,
+    118,160,7,113,96,7,122,16,7,118,208,6,233,48,7,114,160,7,115,32,7,122,48,7,114,208,6,233,96,7,116,160,7,118,64,7,122,96,7,116,208,6,230,48,7,114,160,7,115,32,7,122,48,7,114,208,6,230,
+    96,7,116,160,7,118,64,7,122,96,7,116,208,6,246,16,7,118,160,7,113,96,7,122,16,7,118,208,6,246,32,7,116,160,7,115,32,7,122,48,7,114,208,6,246,48,7,114,160,7,115,32,7,122,48,7,114,208,
+    6,246,64,7,120,160,7,118,64,7,122,96,7,116,208,6,246,96,7,116,160,7,118,64,7,122,96,7,116,208,6,246,144,7,118,160,7,113,32,7,120,160,7,113,32,7,120,208,6,246,16,7,114,128,7,122,16,
+    7,114,128,7,122,16,7,114,128,7,109,96,15,113,144,7,114,160,7,114,80,7,118,160,7,114,80,7,118,208,6,246,32,7,117,96,7,122,32,7,117,96,7,122,32,7,117,96,7,109,96,15,117,16,7,114,160,
+    7,117,16,7,114,160,7,117,16,7,114,208,6,246,16,7,112,32,7,116,160,7,113,0,7,114,64,7,122,16,7,112,32,7,116,208,6,238,128,7,122,16,7,118,160,7,115,32,7,26,33,12,89,48,0,210,208,67,42,
+    160,64,0,0,8,0,0,0,4,0,0,0,0,0,10,96,72,85,108,15,16,0,2,0,0,128,0,0,0,0,0,64,1,72,108,16,40,234,50,0,0,144,5,2,0,0,0,10,0,0,0,50,30,152,16,25,17,76,144,140,9,38,71,198,4,67,106,69,
+    80,2,133,80,14,229,83,128,2,5,81,32,197,48,2,80,6,36,199,18,158,0,0,177,24,0,0,165,0,0,0,51,8,128,28,196,225,28,102,20,1,61,136,67,56,132,195,140,66,128,7,121,120,7,115,152,113,12,
+    230,0,15,237,16,14,244,128,14,51,12,66,30,194,193,29,206,161,28,102,48,5,61,136,67,56,132,131,27,204,3,61,200,67,61,140,3,61,204,120,140,116,112,7,123,8,7,121,72,135,112,112,7,122,
+    112,3,118,120,135,112,32,135,25,204,17,14,236,144,14,225,48,15,110,48,15,227,240,14,240,80,14,51,16,196,29,222,33,28,216,33,29,194,97,30,102,48,137,59,188,131,59,208,67,57,180,3,60,
+    188,131,60,132,3,59,204,240,20,118,96,7,123,104,7,55,104,135,114,104,7,55,128,135,112,144,135,112,96,7,118,40,7,118,248,5,118,120,135,119,128,135,95,8,135,113,24,135,114,152,135,121,
+    152,129,44,238,240,14,238,224,14,245,192,14,236,48,3,98,200,161,28,228,161,28,204,161,28,228,161,28,220,97,28,202,33,28,196,129,29,202,97,6,214,144,67,57,200,67,57,152,67,57,200,67,
+    57,184,195,56,148,67,56,136,3,59,148,195,47,188,131,60,252,130,59,212,3,59,176,195,12,199,105,135,112,88,135,114,112,131,116,104,7,120,96,135,116,24,135,116,160,135,25,206,83,15,238,
+    0,15,242,80,14,228,144,14,227,64,15,225,32,14,236,80,14,51,32,40,29,220,193,30,194,65,30,210,33,28,220,129,30,220,224,28,228,225,29,234,1,30,102,24,81,56,176,67,58,156,131,59,204,80,
+    36,118,96,7,123,104,7,55,96,135,119,120,7,120,152,81,76,244,144,15,240,80,14,51,30,106,30,202,97,28,232,33,29,222,193,29,126,1,30,228,161,28,204,33,29,240,97,6,84,133,131,56,204,195,
+    59,176,67,61,208,67,57,252,194,60,228,67,59,136,195,59,176,195,140,197,10,135,121,152,135,119,24,135,116,8,7,122,40,7,114,152,129,92,227,16,14,236,192,14,229,80,14,243,48,35,193,210,
+    65,30,228,225,23,216,225,29,222,1,30,102,72,25,59,176,131,61,180,131,27,132,195,56,140,67,57,204,195,60,184,193,57,200,195,59,212,3,60,204,72,180,113,8,7,118,96,7,113,8,135,113,88,
+    135,25,219,198,14,236,96,15,237,224,6,240,32,15,229,48,15,229,32,15,246,80,14,110,16,14,227,48,14,229,48,15,243,224,6,233,224,14,228,80,14,248,48,35,226,236,97,28,194,129,29,216,225,
+    23,236,33,29,230,33,29,196,33,29,216,33,29,232,33,31,102,32,157,59,188,67,61,184,3,57,148,131,57,204,88,188,112,112,7,119,120,7,122,8,7,122,72,135,119,112,135,25,206,135,14,229,16,
+    14,240,16,14,236,192,14,239,48,14,243,144,14,244,80,14,51,40,48,8,135,116,144,7,55,48,135,122,112,135,113,160,135,116,120,7,119,248,133,115,144,135,119,168,7,120,152,7,0,0,0,0,121,
+    32,0,0,252,0,0,0,114,30,72,32,67,136,12,25,9,114,50,72,32,35,129,140,145,145,209,68,160,16,40,100,60,49,50,66,142,144,33,163,56,6,220,41,1,0,0,0,139,210,88,216,6,109,80,28,20,27,71,
+    6,81,100,48,134,180,40,15,178,24,197,34,41,24,178,28,13,83,68,75,32,86,101,114,115,105,111,110,119,99,104,97,114,95,115,105,122,101,102,114,97,109,101,45,112,111,105,110,116,101,114,
+    97,105,114,46,109,97,120,95,100,101,118,105,99,101,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,99,111,110,115,116,97,110,116,95,98,117,102,102,101,114,115,97,105,114,
+    46,109,97,120,95,116,104,114,101,97,100,103,114,111,117,112,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,114,
+    101,97,100,95,119,114,105,116,101,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,115,97,109,112,108,101,114,115,65,112,112,108,101,32,109,101,116,97,108,32,118,101,
+    114,115,105,111,110,32,51,50,48,50,51,46,51,54,56,32,40,109,101,116,97,108,102,101,45,51,50,48,50,51,46,51,54,56,41,77,101,116,97,108,97,105,114,46,99,111,109,112,105,108,101,46,100,
+    101,110,111,114,109,115,95,100,105,115,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,97,115,116,95,109,97,116,104,95,101,110,97,98,108,101,97,105,114,46,99,111,109,
+    112,105,108,101,46,102,114,97,109,101,98,117,102,102,101,114,95,102,101,116,99,104,95,101,110,97,98,108,101,97,105,114,46,114,101,110,100,101,114,95,116,97,114,103,101,116,97,105,114,
+    46,97,114,103,95,116,121,112,101,95,110,97,109,101,102,108,111,97,116,52,97,105,114,46,97,114,103,95,110,97,109,101,102,67,111,108,111,114,97,105,114,46,102,114,97,103,109,101,110,
+    116,95,105,110,112,117,116,117,115,101,114,40,108,111,99,110,48,41,97,105,114,46,99,101,110,116,101,114,97,105,114,46,112,101,114,115,112,101,99,116,105,118,101,73,110,95,67,111,108,
+    111,114,117,115,101,114,40,108,111,99,110,49,41,102,108,111,97,116,50,73,110,95,85,86,97,105,114,46,116,101,120,116,117,114,101,97,105,114,46,108,111,99,97,116,105,111,110,95,105,110,
+    100,101,120,97,105,114,46,115,97,109,112,108,101,116,101,120,116,117,114,101,50,100,60,102,108,111,97,116,44,32,115,97,109,112,108,101,62,115,84,101,120,116,117,114,101,97,105,114,
+    46,115,97,109,112,108,101,114,115,97,109,112,108,101,114,115,84,101,120,116,117,114,101,83,109,112,108,114,0,198,96,0,0,0,0,0,0,48,130,208,8,35,8,82,51,130,208,12,35,8,13,49,130,208,
+    20,35,8,141,49,130,208,28,35,8,13,50,130,208,36,35,8,141,50,130,208,44,35,8,13,51,130,144,0,51,12,100,16,148,193,12,131,25,8,103,48,195,128,6,3,25,204,48,160,1,145,6,51,12,104,80,164,
+    193,12,3,26,24,105,48,195,128,6,135,26,204,48,160,1,178,6,51,12,104,144,176,193,12,129,50,195,64,6,109,224,6,51,16,203,27,152,129,27,204,16,48,51,4,205,12,129,51,195,241,184,129,27,
+    64,145,52,205,16,128,194,12,137,27,80,149,117,65,145,132,205,144,152,1,149,89,23,164,73,219,12,10,25,112,157,27,152,129,7,125,18,24,204,144,188,65,24,116,110,96,6,144,24,72,99,48,3,
+    33,10,163,64,10,165,48,195,0,7,161,96,10,71,6,0,199,113,28,199,113,28,199,113,28,231,6,110,224,6,110,224,6,110,224,6,110,224,6,22,29,232,129,101,89,166,192,177,2,43,144,131,58,128,
+    130,140,4,38,40,35,54,54,187,54,151,182,55,178,58,182,50,23,51,182,176,179,185,81,18,56,136,3,57,152,3,58,168,3,59,184,3,60,72,133,141,205,174,205,37,141,172,204,141,110,148,32,15,
+    114,9,75,147,115,177,43,147,155,75,123,115,27,37,208,131,164,194,210,228,92,216,194,220,206,234,194,206,202,190,236,202,228,230,210,222,220,70,9,246,32,167,176,52,57,151,177,183,54,
+    184,52,182,178,175,55,56,186,180,55,183,185,81,6,62,232,3,63,72,38,44,77,206,197,76,46,236,172,173,204,141,110,148,192,20,0,0,0,0,169,24,0,0,37,0,0,0,11,10,114,40,135,119,128,7,122,
+    88,112,152,67,61,184,195,56,176,67,57,208,195,130,230,28,198,161,13,232,65,30,194,193,29,230,33,29,232,33,29,222,193,29,22,52,227,96,14,231,80,15,225,32,15,228,64,15,225,32,15,231,
+    80,14,244,176,128,129,7,121,40,135,112,96,7,118,120,135,113,8,7,122,40,7,114,88,112,156,195,56,180,1,59,164,131,61,148,195,2,107,28,216,33,28,220,225,28,220,32,28,228,97,28,220,32,
+    28,232,129,30,194,97,28,208,161,28,200,97,28,194,129,29,216,97,193,1,15,244,32,15,225,80,15,244,128,14,0,0,0,0,209,16,0,0,6,0,0,0,7,204,60,164,131,59,156,3,59,148,3,61,160,131,60,148,
+    67,56,144,195,1,0,0,0,97,32,0,0,49,0,0,0,19,4,65,44,16,0,0,0,4,0,0,0,196,106,96,4,128,220,8,0,129,17,0,18,51,0,0,0,241,48,0,0,28,0,0,0,34,71,200,144,81,14,196,42,0,0,0,0,23,134,1,0,
+    97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,115,40,109,97,105,110,48,41,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,45,115,97,109,112,108,101,114,115,97,105,114,
+    45,97,108,105,97,115,45,115,99,111,112,101,45,116,101,120,116,117,114,101,115,0,43,132,85,64,133,21,3,43,172,66,42,172,24,90,97,21,84,97,131,208,10,172,0,0,35,6,205,16,130,96,240,88,
+    135,129,20,3,33,8,204,104,66,0,96,176,136,255,108,3,17,0,27,4,196,0,0,0,2,0,0,0,91,6,224,104,5,0,0,0,0,0,0,0,113,32,0,0,3,0,0,0,50,14,16,34,132,0,251,5,0,0,0,0,0,0,0,0,101,12,0,0,37,
+    0,0,0,18,3,148,40,1,0,0,0,3,0,0,0,32,0,0,0,9,0,0,0,76,0,0,0,1,0,0,0,88,0,0,0,0,0,0,0,88,0,0,0,2,0,0,0,136,0,0,0,0,0,0,0,41,0,0,0,24,0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,0,0,0,0,136,0,0,0,
+    0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0,5,0,0,0,255,255,255,255,0,36,0,0,5,0,0,0,27,0,0,0,5,0,0,0,27,0,0,0,255,255,255,255,8,36,0,0,0,0,0,0,93,12,0,0,20,0,0,0,18,3,
+    148,161,0,0,0,0,109,97,105,110,48,97,105,114,46,115,97,109,112,108,101,95,116,101,120,116,117,114,101,95,50,100,46,118,52,102,51,50,51,50,48,50,51,46,51,54,56,97,105,114,54,52,45,97,
+    112,112,108,101,45,109,97,99,111,115,120,49,52,46,48,46,48,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+};
+#elif TARGET_OS_IPHONE
+const uint8_t metallib_vertex[3876]  = {
+    77,84,76,66,1,0,2,0,7,0,0,130,18,0,1,0,36,15,0,0,0,0,0,0,88,0,0,0,0,0,0,0,123,0,0,0,0,0,0,0,219,0,0,0,0,0,0,0,49,0,0,0,0,0,0,0,12,1,0,0,0,0,0,0,8,0,0,0,0,0,0,0,20,1,0,0,0,0,0,0,16,
+    14,0,0,0,0,0,0,1,0,0,0,123,0,0,0,78,65,77,69,6,0,109,97,105,110,48,0,84,89,80,69,1,0,0,72,65,83,72,32,0,240,54,230,217,232,66,102,78,35,5,77,235,101,252,229,192,148,96,126,162,111,
+    77,253,247,211,52,17,198,182,137,68,244,77,68,83,90,8,0,16,14,0,0,0,0,0,0,79,70,70,84,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,86,69,82,83,8,0,2,0,7,0,3,0,2,0,69,78,68,
+    84,69,78,68,84,45,0,0,0,86,65,84,84,24,0,3,0,97,80,111,115,0,0,128,97,85,86,0,1,128,97,67,111,108,111,114,0,2,128,86,65,84,89,5,0,3,0,4,4,6,69,78,68,84,4,0,0,0,69,78,68,84,222,192,
+    23,11,0,0,0,0,20,0,0,0,252,13,0,0,255,255,255,255,66,67,192,222,53,20,0,0,3,0,0,0,98,12,48,36,128,16,5,200,20,0,0,0,33,12,0,0,72,3,0,0,11,2,33,0,2,0,0,0,22,0,0,0,7,129,35,145,65,200,
+    4,73,6,16,50,57,146,1,132,12,37,5,8,25,30,4,139,98,128,16,69,2,66,146,11,66,132,16,50,20,56,8,24,75,10,50,66,136,72,112,196,33,35,68,18,135,140,16,65,146,2,100,200,8,177,20,32,67,70,
+    136,32,201,1,50,66,132,24,42,40,42,144,49,124,176,92,145,32,196,200,0,0,0,137,32,0,0,24,0,0,0,50,34,8,9,32,98,70,0,33,43,36,152,16,33,37,36,152,16,25,39,12,133,164,144,96,66,100,92,
+    32,36,100,130,224,153,1,24,70,32,128,97,4,1,184,67,72,32,37,77,17,37,76,62,149,82,210,193,57,141,52,1,205,148,4,145,65,4,66,48,197,136,68,145,13,4,204,17,128,129,10,228,28,1,40,12,
+    34,8,194,48,2,145,140,0,0,0,0,0,81,24,0,0,100,0,0,0,27,246,35,248,255,255,255,255,1,48,5,192,15,0,56,0,254,0,144,0,10,232,3,34,28,224,1,30,228,225,29,240,161,13,204,161,30,220,97,28,
+    218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,128,48,7,121,8,135,118,40,135,54,128,135,119,72,7,119,160,135,114,144,7,32,28,216,129,29,0,162,29,210,193,29,218,128,
+    29,202,225,28,194,129,29,218,192,30,202,97,28,232,225,29,228,161,13,238,33,29,200,129,30,208,1,136,3,57,192,3,96,112,135,119,104,3,113,168,135,116,96,7,122,72,7,119,152,7,128,112,135,
+    119,104,131,116,112,7,115,152,135,54,48,7,120,104,131,118,8,7,122,64,7,128,30,228,161,30,202,1,32,220,225,29,218,192,29,194,193,29,230,161,13,204,1,30,218,160,29,194,129,30,208,1,160,
+    7,121,168,135,114,0,8,119,120,135,54,152,135,116,56,7,119,40,7,114,104,3,125,40,7,121,120,135,121,104,3,115,128,135,54,104,135,112,160,7,116,0,232,65,30,234,161,28,0,194,29,222,161,
+    13,232,65,30,194,1,30,224,33,29,220,225,28,218,160,29,194,129,30,208,1,160,7,121,168,135,114,0,136,121,160,135,112,24,135,117,104,3,120,144,135,119,160,135,114,24,7,122,120,7,121,104,
+    3,113,168,7,115,48,135,114,144,135,54,152,135,116,208,135,114,0,240,0,32,234,193,29,230,33,28,204,161,28,218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,96,195,24,8,
+    4,176,0,164,0,84,65,128,4,105,0,13,225,144,14,242,208,6,226,80,15,230,96,14,229,32,15,109,224,14,239,208,6,225,192,14,233,16,14,243,0,0,0,73,24,0,0,1,0,0,0,19,132,64,0,19,170,112,72,
+    7,121,176,3,58,104,131,112,128,7,120,96,135,114,104,131,116,120,135,121,136,3,60,112,131,56,112,3,56,216,112,27,229,208,6,240,160,7,118,64,7,122,96,7,116,160,7,118,64,7,109,144,14,
+    113,160,7,120,160,7,120,208,6,233,128,7,122,128,7,122,128,7,109,144,14,113,96,7,122,16,7,118,160,7,113,96,7,109,144,14,115,32,7,122,48,7,114,160,7,115,32,7,109,144,14,118,64,7,122,
+    96,7,116,160,7,118,64,7,109,96,14,115,32,7,122,48,7,114,160,7,115,32,7,109,96,14,118,64,7,122,96,7,116,160,7,118,64,7,109,96,15,113,96,7,122,16,7,118,160,7,113,96,7,109,96,15,114,64,
+    7,122,48,7,114,160,7,115,32,7,109,96,15,115,32,7,122,48,7,114,160,7,115,32,7,109,96,15,116,128,7,122,96,7,116,160,7,118,64,7,109,96,15,118,64,7,122,96,7,116,160,7,118,64,7,109,96,15,
+    121,96,7,122,16,7,114,128,7,122,16,7,114,128,7,109,96,15,113,32,7,120,160,7,113,32,7,120,160,7,113,32,7,120,208,6,246,16,7,121,32,7,122,32,7,117,96,7,122,32,7,117,96,7,109,96,15,114,
+    80,7,118,160,7,114,80,7,118,160,7,114,80,7,118,208,6,246,80,7,113,32,7,122,80,7,113,32,7,122,80,7,113,32,7,109,96,15,113,0,7,114,64,7,122,16,7,112,32,7,116,160,7,113,0,7,114,64,7,109,
+    224,14,120,160,7,113,96,7,122,48,7,114,160,17,194,144,5,3,32,13,61,164,2,10,3,0,128,0,0,0,64,0,0,0,0,0,160,0,36,54,8,20,85,26,0,0,200,2,1,0,11,0,0,0,50,30,152,16,25,17,76,144,140,9,
+    38,71,198,4,67,202,34,40,129,66,40,135,242,41,64,129,130,40,144,17,128,50,160,29,1,32,29,75,144,2,0,0,0,0,177,24,0,0,165,0,0,0,51,8,128,28,196,225,28,102,20,1,61,136,67,56,132,195,
+    140,66,128,7,121,120,7,115,152,113,12,230,0,15,237,16,14,244,128,14,51,12,66,30,194,193,29,206,161,28,102,48,5,61,136,67,56,132,131,27,204,3,61,200,67,61,140,3,61,204,120,140,116,112,
+    7,123,8,7,121,72,135,112,112,7,122,112,3,118,120,135,112,32,135,25,204,17,14,236,144,14,225,48,15,110,48,15,227,240,14,240,80,14,51,16,196,29,222,33,28,216,33,29,194,97,30,102,48,137,
+    59,188,131,59,208,67,57,180,3,60,188,131,60,132,3,59,204,240,20,118,96,7,123,104,7,55,104,135,114,104,7,55,128,135,112,144,135,112,96,7,118,40,7,118,248,5,118,120,135,119,128,135,95,
+    8,135,113,24,135,114,152,135,121,152,129,44,238,240,14,238,224,14,245,192,14,236,48,3,98,200,161,28,228,161,28,204,161,28,228,161,28,220,97,28,202,33,28,196,129,29,202,97,6,214,144,
+    67,57,200,67,57,152,67,57,200,67,57,184,195,56,148,67,56,136,3,59,148,195,47,188,131,60,252,130,59,212,3,59,176,195,12,199,105,135,112,88,135,114,112,131,116,104,7,120,96,135,116,24,
+    135,116,160,135,25,206,83,15,238,0,15,242,80,14,228,144,14,227,64,15,225,32,14,236,80,14,51,32,40,29,220,193,30,194,65,30,210,33,28,220,129,30,220,224,28,228,225,29,234,1,30,102,24,
+    81,56,176,67,58,156,131,59,204,80,36,118,96,7,123,104,7,55,96,135,119,120,7,120,152,81,76,244,144,15,240,80,14,51,30,106,30,202,97,28,232,33,29,222,193,29,126,1,30,228,161,28,204,33,
+    29,240,97,6,84,133,131,56,204,195,59,176,67,61,208,67,57,252,194,60,228,67,59,136,195,59,176,195,140,197,10,135,121,152,135,119,24,135,116,8,7,122,40,7,114,152,129,92,227,16,14,236,
+    192,14,229,80,14,243,48,35,193,210,65,30,228,225,23,216,225,29,222,1,30,102,72,25,59,176,131,61,180,131,27,132,195,56,140,67,57,204,195,60,184,193,57,200,195,59,212,3,60,204,72,180,
+    113,8,7,118,96,7,113,8,135,113,88,135,25,219,198,14,236,96,15,237,224,6,240,32,15,229,48,15,229,32,15,246,80,14,110,16,14,227,48,14,229,48,15,243,224,6,233,224,14,228,80,14,248,48,
+    35,226,236,97,28,194,129,29,216,225,23,236,33,29,230,33,29,196,33,29,216,33,29,232,33,31,102,32,157,59,188,67,61,184,3,57,148,131,57,204,88,188,112,112,7,119,120,7,122,8,7,122,72,135,
+    119,112,135,25,206,135,14,229,16,14,240,16,14,236,192,14,239,48,14,243,144,14,244,80,14,51,40,48,8,135,116,144,7,55,48,135,122,112,135,113,160,135,116,120,7,119,248,133,115,144,135,
+    119,168,7,120,152,7,0,0,0,0,121,32,0,0,25,1,0,0,114,30,72,32,67,136,12,25,9,114,50,72,32,35,129,140,145,145,209,68,160,16,40,100,60,49,50,66,142,144,33,163,152,6,100,208,82,0,0,0,139,
+    210,88,216,6,109,80,28,20,27,71,6,209,18,25,76,178,24,6,179,64,18,49,24,202,131,68,148,161,68,87,35,0,0,0,0,83,68,75,32,86,101,114,115,105,111,110,119,99,104,97,114,95,115,105,122,
+    101,102,114,97,109,101,45,112,111,105,110,116,101,114,97,105,114,46,109,97,120,95,100,101,118,105,99,101,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,99,111,110,115,116,
+    97,110,116,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,104,114,101,97,100,103,114,111,117,112,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,101,120,
+    116,117,114,101,115,97,105,114,46,109,97,120,95,114,101,97,100,95,119,114,105,116,101,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,115,97,109,112,108,101,114,115,
+    65,112,112,108,101,32,109,101,116,97,108,32,118,101,114,115,105,111,110,32,51,50,48,50,51,46,51,54,56,32,40,109,101,116,97,108,102,101,45,51,50,48,50,51,46,51,54,56,41,77,101,116,97,
+    108,97,105,114,46,99,111,109,112,105,108,101,46,100,101,110,111,114,109,115,95,100,105,115,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,97,115,116,95,109,97,116,104,
+    95,101,110,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,114,97,109,101,98,117,102,102,101,114,95,102,101,116,99,104,95,101,110,97,98,108,101,97,105,114,46,118,101,
+    114,116,101,120,95,111,117,116,112,117,116,117,115,101,114,40,108,111,99,110,48,41,97,105,114,46,97,114,103,95,116,121,112,101,95,110,97,109,101,102,108,111,97,116,52,97,105,114,46,
+    97,114,103,95,110,97,109,101,79,117,116,95,67,111,108,111,114,117,115,101,114,40,108,111,99,110,49,41,102,108,111,97,116,50,79,117,116,95,85,86,97,105,114,46,112,111,115,105,116,105,
+    111,110,103,108,95,80,111,115,105,116,105,111,110,97,105,114,46,118,101,114,116,101,120,95,105,110,112,117,116,97,105,114,46,108,111,99,97,116,105,111,110,95,105,110,100,101,120,97,
+    80,111,115,97,85,86,97,67,111,108,111,114,97,105,114,46,98,117,102,102,101,114,97,105,114,46,98,117,102,102,101,114,95,115,105,122,101,97,105,114,46,114,101,97,100,97,105,114,46,97,
+    100,100,114,101,115,115,95,115,112,97,99,101,97,105,114,46,115,116,114,117,99,116,95,116,121,112,101,95,105,110,102,111,117,83,99,97,108,101,117,84,114,97,110,115,108,97,116,101,97,
+    105,114,46,97,114,103,95,116,121,112,101,95,115,105,122,101,97,105,114,46,97,114,103,95,116,121,112,101,95,97,108,105,103,110,95,115,105,122,101,117,80,117,115,104,67,111,110,115,116,
+    97,110,116,112,99,0,0,0,230,117,0,0,0,0,0,0,48,130,144,4,35,8,10,51,130,144,8,35,8,201,48,130,144,16,35,8,73,49,130,144,24,35,8,201,49,130,144,32,35,8,73,50,130,144,40,35,8,7,48,195,
+    160,6,193,26,204,48,176,129,208,6,51,12,110,48,168,193,12,131,27,16,111,48,195,224,6,197,27,204,48,184,129,241,6,51,12,110,112,192,193,12,131,27,32,113,48,195,224,6,137,28,204,16,40,
+    51,12,106,224,6,115,48,3,177,208,129,26,204,193,12,1,51,67,208,204,16,56,51,24,15,20,73,19,53,131,241,84,145,53,93,51,20,88,36,77,217,12,67,41,152,194,41,204,144,204,129,182,205,1,
+    27,68,214,196,205,144,176,129,182,177,1,27,68,214,212,205,144,168,129,182,169,1,27,68,210,228,205,160,204,65,28,204,129,69,6,113,16,7,115,96,149,193,12,20,29,124,96,32,7,219,28,176,
+    65,24,136,129,26,140,1,43,152,129,28,156,65,28,68,104,48,165,193,12,68,42,168,194,42,180,194,12,67,29,160,130,43,156,25,0,28,199,113,28,199,113,28,199,113,110,224,6,110,224,6,110,224,
+    6,110,224,6,110,96,209,129,30,88,150,69,7,116,224,6,116,128,11,184,128,11,252,128,30,160,32,35,129,9,202,136,141,205,174,205,165,237,141,172,142,173,204,197,140,45,236,108,110,148,
+    164,14,236,224,14,240,32,15,244,96,15,248,160,15,82,97,99,179,107,115,73,35,43,115,163,27,37,240,131,92,194,210,228,92,236,202,228,230,210,222,220,70,9,254,32,169,176,52,57,23,182,
+    48,183,179,186,176,179,178,47,187,50,185,185,180,55,183,81,2,80,200,41,44,77,206,101,236,173,13,46,141,173,236,235,13,142,46,237,205,109,110,148,33,20,68,97,20,82,9,75,147,115,177,
+    43,147,163,43,195,27,37,112,5,0,0,0,169,24,0,0,37,0,0,0,11,10,114,40,135,119,128,7,122,88,112,152,67,61,184,195,56,176,67,57,208,195,130,230,28,198,161,13,232,65,30,194,193,29,230,
+    33,29,232,33,29,222,193,29,22,52,227,96,14,231,80,15,225,32,15,228,64,15,225,32,15,231,80,14,244,176,128,129,7,121,40,135,112,96,7,118,120,135,113,8,7,122,40,7,114,88,112,156,195,56,
+    180,1,59,164,131,61,148,195,2,107,28,216,33,28,220,225,28,220,32,28,228,97,28,220,32,28,232,129,30,194,97,28,208,161,28,200,97,28,194,129,29,216,97,193,1,15,244,32,15,225,80,15,244,
+    128,14,0,0,0,0,209,16,0,0,6,0,0,0,7,204,60,164,131,59,156,3,59,148,3,61,160,131,60,148,67,56,144,195,1,0,0,0,97,32,0,0,68,0,0,0,19,4,65,44,16,0,0,0,11,0,0,0,148,51,0,197,64,91,2,212,
+    115,16,73,20,69,115,16,73,36,17,4,163,1,35,0,99,4,32,8,130,248,71,49,7,97,89,23,70,50,26,64,51,3,0,0,0,241,48,0,0,32,0,0,0,34,71,200,144,81,18,196,43,0,0,0,0,207,115,89,0,111,109,110,
+    105,112,111,116,101,110,116,32,99,104,97,114,83,105,109,112,108,101,32,67,43,43,32,84,66,65,65,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,115,40,109,97,105,110,48,41,97,
+    105,114,45,97,108,105,97,115,45,115,99,111,112,101,45,97,114,103,40,51,41,0,19,132,101,89,33,212,130,44,172,24,108,161,22,102,97,67,16,11,27,6,88,184,5,90,216,48,224,2,46,208,194,134,
+    192,22,0,0,157,6,38,154,40,16,130,65,36,254,157,134,135,234,40,16,130,67,0,254,131,12,1,226,12,50,4,138,51,134,48,68,22,128,255,28,195,16,76,179,13,12,6,204,54,4,90,48,219,16,12,194,
+    6,1,49,0,4,0,0,0,91,138,32,192,133,35,23,182,20,68,128,11,71,46,0,0,0,0,0,0,113,32,0,0,3,0,0,0,50,14,16,34,132,0,132,6,0,0,0,0,0,0,0,0,101,12,0,0,31,0,0,0,18,3,148,240,0,0,0,0,3,0,
+    0,0,5,0,0,0,9,0,0,0,76,0,0,0,1,0,0,0,88,0,0,0,0,0,0,0,88,0,0,0,1,0,0,0,112,0,0,0,0,0,0,0,14,0,0,0,21,0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,0,0,0,0,112,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+    0,0,0,0,5,0,0,0,0,0,0,0,5,0,0,0,255,255,255,255,0,36,0,0,0,0,0,0,93,12,0,0,12,0,0,0,18,3,148,99,0,0,0,0,109,97,105,110,48,51,50,48,50,51,46,51,54,56,97,105,114,54,52,45,97,112,112,
+    108,101,45,105,111,115,49,56,46,49,46,48,0,0,0,0,0,
+};
+const uint8_t metallib_fragment[3771]  = {
+    77,84,76,66,1,0,2,0,7,0,0,130,18,0,1,0,187,14,0,0,0,0,0,0,88,0,0,0,0,0,0,0,123,0,0,0,0,0,0,0,219,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,227,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,235,0,0,0,0,0,0,0,208,
+    13,0,0,0,0,0,0,1,0,0,0,123,0,0,0,78,65,77,69,6,0,109,97,105,110,48,0,84,89,80,69,1,0,1,72,65,83,72,32,0,167,26,51,31,140,153,203,226,66,149,243,47,185,58,96,202,28,176,71,121,86,159,
+    244,234,235,69,155,58,121,67,241,212,77,68,83,90,8,0,208,13,0,0,0,0,0,0,79,70,70,84,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,86,69,82,83,8,0,2,0,7,0,3,0,2,0,69,78,68,84,
+    69,78,68,84,4,0,0,0,69,78,68,84,4,0,0,0,69,78,68,84,222,192,23,11,0,0,0,0,20,0,0,0,180,13,0,0,255,255,255,255,66,67,192,222,53,20,0,0,3,0,0,0,98,12,48,36,128,16,5,200,20,0,0,0,33,12,
+    0,0,41,3,0,0,11,2,33,0,2,0,0,0,22,0,0,0,7,129,35,145,65,200,4,73,6,16,50,57,146,1,132,12,37,5,8,25,30,4,139,98,128,20,69,2,66,146,11,66,164,16,50,20,56,8,24,75,10,50,82,136,72,112,
+    196,33,35,68,18,135,140,16,65,146,2,100,200,8,177,20,32,67,70,136,32,201,1,50,82,132,24,42,40,42,144,49,124,176,92,145,32,197,200,0,0,0,137,32,0,0,31,0,0,0,50,34,72,9,32,98,70,0,33,
+    43,36,152,20,33,37,36,152,20,25,39,12,133,164,144,96,82,100,92,32,36,101,130,128,154,1,24,70,32,128,27,132,97,4,1,64,74,154,34,74,152,252,127,34,174,137,138,136,223,30,254,105,140,
+    0,24,68,32,2,140,164,41,162,132,201,255,37,128,121,22,34,250,167,49,2,96,16,193,16,76,33,194,40,135,208,28,1,114,132,160,230,8,130,57,2,48,24,70,16,26,163,172,114,6,115,12,128,70,111,
+    32,64,5,218,8,0,0,81,24,0,0,105,0,0,0,27,246,35,248,255,255,255,255,1,104,3,96,13,0,83,0,252,0,144,128,10,232,3,34,28,224,1,30,228,225,29,240,161,13,204,161,30,220,97,28,218,192,28,
+    224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,128,48,7,121,8,135,118,40,135,54,128,135,119,72,7,119,160,135,114,144,7,32,28,216,129,29,0,162,29,210,193,29,218,128,29,202,225,
+    28,194,129,29,218,192,30,202,97,28,232,225,29,228,161,13,238,33,29,200,129,30,208,1,136,3,57,192,3,96,112,135,119,104,3,113,168,135,116,96,7,122,72,7,119,152,7,128,112,135,119,104,
+    131,116,112,7,115,152,135,54,48,7,120,104,131,118,8,7,122,64,7,128,30,228,161,30,202,1,32,220,225,29,218,192,29,194,193,29,230,161,13,204,1,30,218,160,29,194,129,30,208,1,160,7,121,
+    168,135,114,0,8,119,120,135,54,152,135,116,56,7,119,40,7,114,104,3,125,40,7,121,120,135,121,104,3,115,128,135,54,104,135,112,160,7,116,0,232,65,30,234,161,28,0,194,29,222,161,13,232,
+    65,30,194,1,30,224,33,29,220,225,28,218,160,29,194,129,30,208,1,160,7,121,168,135,114,0,136,121,160,135,112,24,135,117,104,3,120,144,135,119,160,135,114,24,7,122,120,7,121,104,3,113,
+    168,7,115,48,135,114,144,135,54,152,135,116,208,135,114,0,240,0,32,234,193,29,230,33,28,204,161,28,218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,96,131,33,12,192,
+    2,84,27,140,129,0,22,160,218,0,17,255,255,255,255,63,0,109,0,172,1,96,10,128,31,0,18,80,1,125,176,193,40,2,96,1,170,13,134,33,0,11,80,109,96,142,255,255,255,255,31,128,54,0,214,0,144,
+    128,10,232,3,0,73,24,0,0,4,0,0,0,19,134,64,24,38,12,68,97,76,24,142,194,0,0,0,0,19,170,112,72,7,121,176,3,58,104,131,112,128,7,120,96,135,114,104,131,116,120,135,121,136,3,60,112,131,
+    56,112,3,56,216,112,27,229,208,6,240,160,7,118,64,7,122,96,7,116,160,7,118,64,7,109,144,14,113,160,7,120,160,7,120,208,6,233,128,7,122,128,7,122,128,7,109,144,14,113,96,7,122,16,7,
+    118,160,7,113,96,7,109,144,14,115,32,7,122,48,7,114,160,7,115,32,7,109,144,14,118,64,7,122,96,7,116,160,7,118,64,7,109,96,14,115,32,7,122,48,7,114,160,7,115,32,7,109,96,14,118,64,7,
+    122,96,7,116,160,7,118,64,7,109,96,15,113,96,7,122,16,7,118,160,7,113,96,7,109,96,15,114,64,7,122,48,7,114,160,7,115,32,7,109,96,15,115,32,7,122,48,7,114,160,7,115,32,7,109,96,15,116,
+    128,7,122,96,7,116,160,7,118,64,7,109,96,15,118,64,7,122,96,7,116,160,7,118,64,7,109,96,15,121,96,7,122,16,7,114,128,7,122,16,7,114,128,7,109,96,15,113,32,7,120,160,7,113,32,7,120,
+    160,7,113,32,7,120,208,6,246,16,7,121,32,7,122,32,7,117,96,7,122,32,7,117,96,7,109,96,15,114,80,7,118,160,7,114,80,7,118,160,7,114,80,7,118,208,6,246,80,7,113,32,7,122,80,7,113,32,
+    7,122,80,7,113,32,7,109,96,15,113,0,7,114,64,7,122,16,7,112,32,7,116,160,7,113,0,7,114,64,7,109,224,14,120,160,7,113,96,7,122,48,7,114,160,17,194,144,5,3,32,13,61,164,2,10,4,0,128,
+    0,0,0,64,0,0,0,0,0,160,0,134,84,197,246,0,1,32,0,0,0,8,0,0,0,0,0,20,128,196,6,129,162,43,3,0,0,89,32,10,0,0,0,50,30,152,16,25,17,76,144,140,9,38,71,198,4,67,106,69,80,2,133,80,14,229,
+    83,128,2,5,81,32,35,0,101,64,114,44,65,10,0,0,0,177,24,0,0,165,0,0,0,51,8,128,28,196,225,28,102,20,1,61,136,67,56,132,195,140,66,128,7,121,120,7,115,152,113,12,230,0,15,237,16,14,244,
+    128,14,51,12,66,30,194,193,29,206,161,28,102,48,5,61,136,67,56,132,131,27,204,3,61,200,67,61,140,3,61,204,120,140,116,112,7,123,8,7,121,72,135,112,112,7,122,112,3,118,120,135,112,32,
+    135,25,204,17,14,236,144,14,225,48,15,110,48,15,227,240,14,240,80,14,51,16,196,29,222,33,28,216,33,29,194,97,30,102,48,137,59,188,131,59,208,67,57,180,3,60,188,131,60,132,3,59,204,
+    240,20,118,96,7,123,104,7,55,104,135,114,104,7,55,128,135,112,144,135,112,96,7,118,40,7,118,248,5,118,120,135,119,128,135,95,8,135,113,24,135,114,152,135,121,152,129,44,238,240,14,
+    238,224,14,245,192,14,236,48,3,98,200,161,28,228,161,28,204,161,28,228,161,28,220,97,28,202,33,28,196,129,29,202,97,6,214,144,67,57,200,67,57,152,67,57,200,67,57,184,195,56,148,67,
+    56,136,3,59,148,195,47,188,131,60,252,130,59,212,3,59,176,195,12,199,105,135,112,88,135,114,112,131,116,104,7,120,96,135,116,24,135,116,160,135,25,206,83,15,238,0,15,242,80,14,228,
+    144,14,227,64,15,225,32,14,236,80,14,51,32,40,29,220,193,30,194,65,30,210,33,28,220,129,30,220,224,28,228,225,29,234,1,30,102,24,81,56,176,67,58,156,131,59,204,80,36,118,96,7,123,104,
+    7,55,96,135,119,120,7,120,152,81,76,244,144,15,240,80,14,51,30,106,30,202,97,28,232,33,29,222,193,29,126,1,30,228,161,28,204,33,29,240,97,6,84,133,131,56,204,195,59,176,67,61,208,67,
+    57,252,194,60,228,67,59,136,195,59,176,195,140,197,10,135,121,152,135,119,24,135,116,8,7,122,40,7,114,152,129,92,227,16,14,236,192,14,229,80,14,243,48,35,193,210,65,30,228,225,23,216,
+    225,29,222,1,30,102,72,25,59,176,131,61,180,131,27,132,195,56,140,67,57,204,195,60,184,193,57,200,195,59,212,3,60,204,72,180,113,8,7,118,96,7,113,8,135,113,88,135,25,219,198,14,236,
+    96,15,237,224,6,240,32,15,229,48,15,229,32,15,246,80,14,110,16,14,227,48,14,229,48,15,243,224,6,233,224,14,228,80,14,248,48,35,226,236,97,28,194,129,29,216,225,23,236,33,29,230,33,
+    29,196,33,29,216,33,29,232,33,31,102,32,157,59,188,67,61,184,3,57,148,131,57,204,88,188,112,112,7,119,120,7,122,8,7,122,72,135,119,112,135,25,206,135,14,229,16,14,240,16,14,236,192,
+    14,239,48,14,243,144,14,244,80,14,51,40,48,8,135,116,144,7,55,48,135,122,112,135,113,160,135,116,120,7,119,248,133,115,144,135,119,168,7,120,152,7,0,0,0,0,121,32,0,0,251,0,0,0,114,
+    30,72,32,67,136,12,25,9,114,50,72,32,35,129,140,145,145,209,68,160,16,40,100,60,49,50,66,142,144,33,163,56,6,220,41,1,0,0,0,139,210,88,216,6,109,80,28,20,27,71,6,81,100,48,134,180,
+    40,15,178,24,197,34,41,24,178,28,13,83,68,75,32,86,101,114,115,105,111,110,119,99,104,97,114,95,115,105,122,101,102,114,97,109,101,45,112,111,105,110,116,101,114,97,105,114,46,109,
+    97,120,95,100,101,118,105,99,101,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,99,111,110,115,116,97,110,116,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,
+    104,114,101,97,100,103,114,111,117,112,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,114,101,97,100,95,119,114,
+    105,116,101,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,115,97,109,112,108,101,114,115,65,112,112,108,101,32,109,101,116,97,108,32,118,101,114,115,105,111,110,32,
+    51,50,48,50,51,46,51,54,56,32,40,109,101,116,97,108,102,101,45,51,50,48,50,51,46,51,54,56,41,77,101,116,97,108,97,105,114,46,99,111,109,112,105,108,101,46,100,101,110,111,114,109,115,
+    95,100,105,115,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,97,115,116,95,109,97,116,104,95,101,110,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,114,
+    97,109,101,98,117,102,102,101,114,95,102,101,116,99,104,95,101,110,97,98,108,101,97,105,114,46,114,101,110,100,101,114,95,116,97,114,103,101,116,97,105,114,46,97,114,103,95,116,121,
+    112,101,95,110,97,109,101,102,108,111,97,116,52,97,105,114,46,97,114,103,95,110,97,109,101,102,67,111,108,111,114,97,105,114,46,102,114,97,103,109,101,110,116,95,105,110,112,117,116,
+    117,115,101,114,40,108,111,99,110,48,41,97,105,114,46,99,101,110,116,101,114,97,105,114,46,112,101,114,115,112,101,99,116,105,118,101,73,110,95,67,111,108,111,114,117,115,101,114,40,
+    108,111,99,110,49,41,102,108,111,97,116,50,73,110,95,85,86,97,105,114,46,116,101,120,116,117,114,101,97,105,114,46,108,111,99,97,116,105,111,110,95,105,110,100,101,120,97,105,114,46,
+    115,97,109,112,108,101,116,101,120,116,117,114,101,50,100,60,102,108,111,97,116,44,32,115,97,109,112,108,101,62,115,84,101,120,116,117,114,101,97,105,114,46,115,97,109,112,108,101,
+    114,115,97,109,112,108,101,114,115,84,101,120,116,117,114,101,83,109,112,108,114,0,6,95,0,0,0,0,0,0,48,130,208,8,35,8,18,51,130,208,12,35,8,13,49,130,208,20,35,8,141,49,130,208,28,
+    35,8,13,50,130,208,36,35,8,141,50,130,208,44,35,8,9,48,195,64,6,65,25,204,48,152,129,112,6,51,12,104,48,144,193,12,3,26,16,105,48,195,128,6,69,26,204,48,160,129,145,6,51,12,104,112,
+    168,193,12,3,26,32,107,48,195,128,6,9,27,204,16,40,51,12,100,128,6,109,48,3,177,184,1,25,180,193,12,1,51,67,208,204,16,56,51,28,79,27,180,1,20,73,211,12,193,31,204,144,180,1,85,89,
+    23,20,73,216,12,137,25,80,153,117,65,154,180,205,160,144,1,215,181,129,25,120,208,39,129,193,12,137,27,132,65,215,6,102,0,137,129,52,6,51,16,161,32,10,163,64,10,51,12,111,0,10,165,
+    112,99,0,112,28,199,113,28,199,113,28,199,185,129,27,184,129,27,184,129,27,184,129,27,184,129,69,7,122,96,89,150,41,112,172,192,10,228,160,14,160,32,35,129,9,202,136,141,205,174,205,
+    165,237,141,172,142,173,204,197,140,45,236,108,110,148,228,13,224,32,14,228,96,14,232,160,14,236,224,14,82,97,99,179,107,115,73,35,43,115,163,27,37,192,131,92,194,210,228,92,236,202,
+    228,230,210,222,220,70,9,242,32,169,176,52,57,23,182,48,183,179,186,176,179,178,47,187,50,185,185,180,55,183,81,2,61,200,41,44,77,206,101,236,173,13,46,141,173,236,235,13,142,46,237,
+    205,109,110,148,97,15,248,160,15,146,9,75,147,115,49,147,11,59,107,43,115,163,27,37,40,5,0,0,0,0,169,24,0,0,37,0,0,0,11,10,114,40,135,119,128,7,122,88,112,152,67,61,184,195,56,176,
+    67,57,208,195,130,230,28,198,161,13,232,65,30,194,193,29,230,33,29,232,33,29,222,193,29,22,52,227,96,14,231,80,15,225,32,15,228,64,15,225,32,15,231,80,14,244,176,128,129,7,121,40,135,
+    112,96,7,118,120,135,113,8,7,122,40,7,114,88,112,156,195,56,180,1,59,164,131,61,148,195,2,107,28,216,33,28,220,225,28,220,32,28,228,97,28,220,32,28,232,129,30,194,97,28,208,161,28,
+    200,97,28,194,129,29,216,97,193,1,15,244,32,15,225,80,15,244,128,14,0,0,0,0,209,16,0,0,6,0,0,0,7,204,60,164,131,59,156,3,59,148,3,61,160,131,60,148,67,56,144,195,1,0,0,0,97,32,0,0,
+    49,0,0,0,19,4,65,44,16,0,0,0,4,0,0,0,196,106,96,4,128,220,8,0,129,17,0,18,51,0,0,0,241,48,0,0,28,0,0,0,34,71,200,144,81,14,196,42,0,0,0,0,23,134,1,0,97,105,114,45,97,108,105,97,115,
+    45,115,99,111,112,101,115,40,109,97,105,110,48,41,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,45,115,97,109,112,108,101,114,115,97,105,114,45,97,108,105,97,115,45,115,99,
+    111,112,101,45,116,101,120,116,117,114,101,115,0,43,4,85,56,133,21,195,42,168,2,42,172,24,88,65,21,82,97,131,192,10,171,0,0,35,6,205,16,130,96,240,84,135,129,20,3,33,8,204,104,66,0,
+    96,176,136,255,108,3,17,0,27,4,196,0,0,0,2,0,0,0,91,6,224,96,5,0,0,0,0,0,0,0,113,32,0,0,3,0,0,0,50,14,16,34,132,0,248,5,0,0,0,0,0,0,0,0,101,12,0,0,37,0,0,0,18,3,148,40,1,0,0,0,3,0,
+    0,0,32,0,0,0,9,0,0,0,76,0,0,0,1,0,0,0,88,0,0,0,0,0,0,0,88,0,0,0,2,0,0,0,136,0,0,0,0,0,0,0,41,0,0,0,21,0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,0,0,0,0,136,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,
+    0,0,0,0,0,5,0,0,0,0,0,0,0,5,0,0,0,255,255,255,255,0,36,0,0,5,0,0,0,27,0,0,0,5,0,0,0,27,0,0,0,255,255,255,255,8,36,0,0,0,0,0,0,93,12,0,0,19,0,0,0,18,3,148,126,0,0,0,0,109,97,105,110,
+    48,97,105,114,46,115,97,109,112,108,101,95,116,101,120,116,117,114,101,95,50,100,46,118,52,102,51,50,51,50,48,50,51,46,51,54,56,97,105,114,54,52,45,97,112,112,108,101,45,105,111,115,
+    49,56,46,49,46,48,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+};
+#elif TARGET_IPHONE_SIMULATOR
+#error "SDL_GPU does not support the iphone simulator"
+#endif
+#endif
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_sdlrenderer2.cpp

@@ -0,0 +1,302 @@
+// dear imgui: Renderer Backend for SDL_Renderer for SDL2
+// (Requires: SDL 2.0.17+)
+
+// Note that SDL_Renderer is an _optional_ component of SDL2, which IMHO is now largely obsolete.
+// For a multi-platform app consider using other technologies:
+// - SDL3+SDL_GPU: SDL_GPU is SDL3 new graphics abstraction API. You will need to update to SDL3.
+// - SDL2+DirectX, SDL2+OpenGL, SDL2+Vulkan: combine SDL with dedicated renderers.
+// If your application wants to render any non trivial amount of graphics other than UI,
+// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user
+// and it might be difficult to step out of those boundaries.
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+// Missing features:
+//  [ ] Renderer: Multi-viewport support (multiple windows).
+
+// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+//  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
+//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLRenderer2_CreateFontsTexture() and ImGui_ImplSDLRenderer2_DestroyFontsTexture().
+//  2025-01-18: Use endian-dependent RGBA32 texture format, to match SDL_Color.
+//  2024-10-09: Expose selected render state in ImGui_ImplSDLRenderer2_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
+//  2024-05-14: *BREAKING CHANGE* ImGui_ImplSDLRenderer3_RenderDrawData() requires SDL_Renderer* passed as parameter.
+//  2023-05-30: Renamed imgui_impl_sdlrenderer.h/.cpp to imgui_impl_sdlrenderer2.h/.cpp to accommodate for upcoming SDL3.
+//  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
+//  2021-12-21: Update SDL_RenderGeometryRaw() format to work with SDL 2.0.19.
+//  2021-12-03: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
+//  2021-10-06: Backup and restore modified ClipRect/Viewport.
+//  2021-09-21: Initial version.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_sdlrenderer2.h"
+#include <stdint.h>     // intptr_t
+
+// Clang warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wsign-conversion"    // warning: implicit conversion changes signedness
+#elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wfloat-equal"                      // warning: comparing floating-point with '==' or '!=' is unsafe
+#endif
+
+// SDL
+#include <SDL.h>
+#if !SDL_VERSION_ATLEAST(2,0,17)
+#error This backend requires SDL 2.0.17+ because of SDL_RenderGeometry() function
+#endif
+
+// SDL_Renderer data
+struct ImGui_ImplSDLRenderer2_Data
+{
+    SDL_Renderer*   Renderer;       // Main viewport's renderer
+
+    ImGui_ImplSDLRenderer2_Data()   { memset((void*)this, 0, sizeof(*this)); }
+};
+
+// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+static ImGui_ImplSDLRenderer2_Data* ImGui_ImplSDLRenderer2_GetBackendData()
+{
+    return ImGui::GetCurrentContext() ? (ImGui_ImplSDLRenderer2_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
+}
+
+// Functions
+bool ImGui_ImplSDLRenderer2_Init(SDL_Renderer* renderer)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+    IM_ASSERT(renderer != nullptr && "SDL_Renderer not initialized!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplSDLRenderer2_Data* bd = IM_NEW(ImGui_ImplSDLRenderer2_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_sdlrenderer2";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    bd->Renderer = renderer;
+
+    return true;
+}
+
+void ImGui_ImplSDLRenderer2_Shutdown()
+{
+    ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplSDLRenderer2_DestroyDeviceObjects();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
+static void ImGui_ImplSDLRenderer2_SetupRenderState(SDL_Renderer* renderer)
+{
+    // Clear out any viewports and cliprect set by the user
+    // FIXME: Technically speaking there are lots of other things we could backup/setup/restore during our render process.
+    SDL_RenderSetViewport(renderer, nullptr);
+    SDL_RenderSetClipRect(renderer, nullptr);
+}
+
+void ImGui_ImplSDLRenderer2_NewFrame()
+{
+    ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDLRenderer2_Init()?");
+    IM_UNUSED(bd);
+}
+
+void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer)
+{
+    // If there's a scale factor set by the user, use that instead
+    // If the user has specified a scale factor to SDL_Renderer already via SDL_RenderSetScale(), SDL will scale whatever we pass
+    // to SDL_RenderGeometryRaw() by that scale factor. In that case we don't want to be also scaling it ourselves here.
+    float rsx = 1.0f;
+    float rsy = 1.0f;
+    SDL_RenderGetScale(renderer, &rsx, &rsy);
+    ImVec2 render_scale;
+    render_scale.x = (rsx == 1.0f) ? draw_data->FramebufferScale.x : 1.0f;
+    render_scale.y = (rsy == 1.0f) ? draw_data->FramebufferScale.y : 1.0f;
+
+    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    int fb_width = (int)(draw_data->DisplaySize.x * render_scale.x);
+    int fb_height = (int)(draw_data->DisplaySize.y * render_scale.y);
+    if (fb_width == 0 || fb_height == 0)
+        return;
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplSDLRenderer2_UpdateTexture(tex);
+
+    // Backup SDL_Renderer state that will be modified to restore it afterwards
+    struct BackupSDLRendererState
+    {
+        SDL_Rect    Viewport;
+        bool        ClipEnabled;
+        SDL_Rect    ClipRect;
+    };
+    BackupSDLRendererState old = {};
+    old.ClipEnabled = SDL_RenderIsClipEnabled(renderer) == SDL_TRUE;
+    SDL_RenderGetViewport(renderer, &old.Viewport);
+    SDL_RenderGetClipRect(renderer, &old.ClipRect);
+
+    // Setup desired state
+    ImGui_ImplSDLRenderer2_SetupRenderState(renderer);
+
+    // Setup render state structure (for callbacks and custom texture bindings)
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    ImGui_ImplSDLRenderer2_RenderState render_state;
+    render_state.Renderer = renderer;
+    platform_io.Renderer_RenderState = &render_state;
+
+    // Will project scissor/clipping rectangles into framebuffer space
+    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
+    ImVec2 clip_scale = render_scale;
+
+    // Render command lists
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        const ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data;
+        const ImDrawIdx* idx_buffer = draw_list->IdxBuffer.Data;
+
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplSDLRenderer2_SetupRenderState(renderer);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
+                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
+                if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
+                if (clip_max.x > (float)fb_width) { clip_max.x = (float)fb_width; }
+                if (clip_max.y > (float)fb_height) { clip_max.y = (float)fb_height; }
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                SDL_Rect r = { (int)(clip_min.x), (int)(clip_min.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y) };
+                SDL_RenderSetClipRect(renderer, &r);
+
+                const float* xy = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, pos));
+                const float* uv = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, uv));
+#if SDL_VERSION_ATLEAST(2,0,19)
+                const SDL_Color* color = (const SDL_Color*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, col)); // SDL 2.0.19+
+#else
+                const int* color = (const int*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, col)); // SDL 2.0.17 and 2.0.18
+#endif
+
+                // Bind texture, Draw
+                SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
+                SDL_RenderGeometryRaw(renderer, tex,
+                    xy, (int)sizeof(ImDrawVert),
+                    color, (int)sizeof(ImDrawVert),
+                    uv, (int)sizeof(ImDrawVert),
+                    draw_list->VtxBuffer.Size - pcmd->VtxOffset,
+                    idx_buffer + pcmd->IdxOffset, pcmd->ElemCount, sizeof(ImDrawIdx));
+            }
+        }
+    }
+    platform_io.Renderer_RenderState = nullptr;
+
+    // Restore modified SDL_Renderer state
+    SDL_RenderSetViewport(renderer, &old.Viewport);
+    SDL_RenderSetClipRect(renderer, old.ClipEnabled ? &old.ClipRect : nullptr);
+}
+
+void ImGui_ImplSDLRenderer2_UpdateTexture(ImTextureData* tex)
+{
+    ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
+
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+
+        // Create texture
+        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+        SDL_Texture* sdl_texture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STATIC, tex->Width, tex->Height);
+        IM_ASSERT(sdl_texture != nullptr && "Backend failed to create texture!");
+        SDL_UpdateTexture(sdl_texture, nullptr, tex->GetPixels(), tex->GetPitch());
+        SDL_SetTextureBlendMode(sdl_texture, SDL_BLENDMODE_BLEND);
+        SDL_SetTextureScaleMode(sdl_texture, SDL_ScaleModeLinear);
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)sdl_texture);
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Update selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
+        SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID;
+        for (ImTextureRect& r : tex->Updates)
+        {
+            SDL_Rect sdl_r = { r.x, r.y, r.w, r.h };
+            SDL_UpdateTexture(sdl_texture, &sdl_r, tex->GetPixelsAt(r.x, r.y), tex->GetPitch());
+        }
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantDestroy)
+    {
+        if (SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID)
+            SDL_DestroyTexture(sdl_texture);
+
+        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->SetStatus(ImTextureStatus_Destroyed);
+    }
+}
+
+void ImGui_ImplSDLRenderer2_CreateDeviceObjects()
+{
+}
+
+void ImGui_ImplSDLRenderer2_DestroyDeviceObjects()
+{
+    // Destroy all textures
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+        {
+            tex->SetStatus(ImTextureStatus_WantDestroy);
+            ImGui_ImplSDLRenderer2_UpdateTexture(tex);
+        }
+}
+
+//-----------------------------------------------------------------------------
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_sdlrenderer2.h

@@ -0,0 +1,55 @@
+// dear imgui: Renderer Backend for SDL_Renderer for SDL2
+// (Requires: SDL 2.0.17+)
+
+// Note that SDL_Renderer is an _optional_ component of SDL2, which IMHO is now largely obsolete.
+// For a multi-platform app consider using other technologies:
+// - SDL3+SDL_GPU: SDL_GPU is SDL3 new graphics abstraction API. You will need to update to SDL3.
+// - SDL2+DirectX, SDL2+OpenGL, SDL2+Vulkan: combine SDL with dedicated renderers.
+// If your application wants to render any non trivial amount of graphics other than UI,
+// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user
+// and it might be difficult to step out of those boundaries.
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+// Missing features:
+//  [ ] Renderer: Multi-viewport support (multiple windows).
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#ifndef IMGUI_DISABLE
+#include "imgui.h"      // IMGUI_IMPL_API
+
+struct SDL_Renderer;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplSDLRenderer2_Init(SDL_Renderer* renderer);
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer);
+
+// Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_DestroyDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_UpdateTexture(ImTextureData* tex);
+
+// [BETA] Selected render state data shared with callbacks.
+// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplSDLRenderer2_RenderDrawData() call.
+// (Please open an issue if you feel you need access to more data)
+struct ImGui_ImplSDLRenderer2_RenderState
+{
+    SDL_Renderer*       Renderer;
+};
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_sdlrenderer3.cpp

@@ -0,0 +1,318 @@
+// dear imgui: Renderer Backend for SDL_Renderer for SDL3
+// (Requires: SDL 3.1.8+)
+
+// Note that SDL_Renderer is an _optional_ component of SDL3, which IMHO is now largely obsolete.
+// For a multi-platform app consider using other technologies:
+// - SDL3+SDL_GPU: SDL_GPU is SDL3 new graphics abstraction API.
+// - SDL3+DirectX, SDL3+OpenGL, SDL3+Vulkan: combine SDL with dedicated renderers.
+// If your application wants to render any non trivial amount of graphics other than UI,
+// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user
+// and it might be difficult to step out of those boundaries.
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+// Missing features:
+//  [ ] Renderer: Multi-viewport support (multiple windows).
+
+// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+//  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
+//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLRenderer3_CreateFontsTexture() and ImGui_ImplSDLRenderer3_DestroyFontsTexture().
+//  2025-01-18: Use endian-dependent RGBA32 texture format, to match SDL_Color.
+//  2024-10-09: Expose selected render state in ImGui_ImplSDLRenderer3_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
+//  2024-07-01: Update for SDL3 api changes: SDL_RenderGeometryRaw() uint32 version was removed (SDL#9009).
+//  2024-05-14: *BREAKING CHANGE* ImGui_ImplSDLRenderer3_RenderDrawData() requires SDL_Renderer* passed as parameter.
+//  2024-02-12: Amend to query SDL_RenderViewportSet() and restore viewport accordingly.
+//  2023-05-30: Initial version.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_sdlrenderer3.h"
+#include <stdint.h>     // intptr_t
+
+// Clang warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wsign-conversion"    // warning: implicit conversion changes signedness
+#elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wfloat-equal"          // warning: comparing floating-point with '==' or '!=' is unsafe
+#endif
+
+// SDL
+#include <SDL3/SDL.h>
+#if !SDL_VERSION_ATLEAST(3,0,0)
+#error This backend requires SDL 3.0.0+
+#endif
+
+// SDL_Renderer data
+struct ImGui_ImplSDLRenderer3_Data
+{
+    SDL_Renderer*           Renderer;       // Main viewport's renderer
+    ImVector<SDL_FColor>    ColorBuffer;
+
+    ImGui_ImplSDLRenderer3_Data()   { memset((void*)this, 0, sizeof(*this)); }
+};
+
+// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+static ImGui_ImplSDLRenderer3_Data* ImGui_ImplSDLRenderer3_GetBackendData()
+{
+    return ImGui::GetCurrentContext() ? (ImGui_ImplSDLRenderer3_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
+}
+
+// Functions
+bool ImGui_ImplSDLRenderer3_Init(SDL_Renderer* renderer)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+    IM_ASSERT(renderer != nullptr && "SDL_Renderer not initialized!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplSDLRenderer3_Data* bd = IM_NEW(ImGui_ImplSDLRenderer3_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_sdlrenderer3";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    bd->Renderer = renderer;
+
+    return true;
+}
+
+void ImGui_ImplSDLRenderer3_Shutdown()
+{
+    ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
+static void ImGui_ImplSDLRenderer3_SetupRenderState(SDL_Renderer* renderer)
+{
+    // Clear out any viewports and cliprect set by the user
+    // FIXME: Technically speaking there are lots of other things we could backup/setup/restore during our render process.
+    SDL_SetRenderViewport(renderer, nullptr);
+    SDL_SetRenderClipRect(renderer, nullptr);
+}
+
+void ImGui_ImplSDLRenderer3_NewFrame()
+{
+    ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDLRenderer3_Init()?");
+    IM_UNUSED(bd);
+}
+
+// https://github.com/libsdl-org/SDL/issues/9009
+static int SDL_RenderGeometryRaw8BitColor(SDL_Renderer* renderer, ImVector<SDL_FColor>& colors_out, SDL_Texture* texture, const float* xy, int xy_stride, const SDL_Color* color, int color_stride, const float* uv, int uv_stride, int num_vertices, const void* indices, int num_indices, int size_indices)
+{
+    const Uint8* color2 = (const Uint8*)color;
+    colors_out.resize(num_vertices);
+    SDL_FColor* color3 = colors_out.Data;
+    for (int i = 0; i < num_vertices; i++)
+    {
+        color3[i].r = color->r / 255.0f;
+        color3[i].g = color->g / 255.0f;
+        color3[i].b = color->b / 255.0f;
+        color3[i].a = color->a / 255.0f;
+        color2 += color_stride;
+        color = (const SDL_Color*)color2;
+    }
+    return SDL_RenderGeometryRaw(renderer, texture, xy, xy_stride, color3, sizeof(*color3), uv, uv_stride, num_vertices, indices, num_indices, size_indices);
+}
+
+void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer)
+{
+    ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
+
+    // If there's a scale factor set by the user, use that instead
+    // If the user has specified a scale factor to SDL_Renderer already via SDL_RenderSetScale(), SDL will scale whatever we pass
+    // to SDL_RenderGeometryRaw() by that scale factor. In that case we don't want to be also scaling it ourselves here.
+    float rsx = 1.0f;
+    float rsy = 1.0f;
+    SDL_GetRenderScale(renderer, &rsx, &rsy);
+    ImVec2 render_scale;
+    render_scale.x = (rsx == 1.0f) ? draw_data->FramebufferScale.x : 1.0f;
+    render_scale.y = (rsy == 1.0f) ? draw_data->FramebufferScale.y : 1.0f;
+
+    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    int fb_width = (int)(draw_data->DisplaySize.x * render_scale.x);
+    int fb_height = (int)(draw_data->DisplaySize.y * render_scale.y);
+    if (fb_width == 0 || fb_height == 0)
+        return;
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplSDLRenderer3_UpdateTexture(tex);
+
+    // Backup SDL_Renderer state that will be modified to restore it afterwards
+    struct BackupSDLRendererState
+    {
+        SDL_Rect    Viewport;
+        bool        ViewportEnabled;
+        bool        ClipEnabled;
+        SDL_Rect    ClipRect;
+    };
+    BackupSDLRendererState old = {};
+    old.ViewportEnabled = SDL_RenderViewportSet(renderer);
+    old.ClipEnabled = SDL_RenderClipEnabled(renderer);
+    SDL_GetRenderViewport(renderer, &old.Viewport);
+    SDL_GetRenderClipRect(renderer, &old.ClipRect);
+
+    // Setup desired state
+    ImGui_ImplSDLRenderer3_SetupRenderState(renderer);
+
+    // Setup render state structure (for callbacks and custom texture bindings)
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    ImGui_ImplSDLRenderer3_RenderState render_state;
+    render_state.Renderer = renderer;
+    platform_io.Renderer_RenderState = &render_state;
+
+    // Will project scissor/clipping rectangles into framebuffer space
+    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
+    ImVec2 clip_scale = render_scale;
+
+    // Render command lists
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        const ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data;
+        const ImDrawIdx* idx_buffer = draw_list->IdxBuffer.Data;
+
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplSDLRenderer3_SetupRenderState(renderer);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
+                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
+                if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
+                if (clip_max.x > (float)fb_width) { clip_max.x = (float)fb_width; }
+                if (clip_max.y > (float)fb_height) { clip_max.y = (float)fb_height; }
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                SDL_Rect r = { (int)(clip_min.x), (int)(clip_min.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y) };
+                SDL_SetRenderClipRect(renderer, &r);
+
+                const float* xy = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, pos));
+                const float* uv = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, uv));
+                const SDL_Color* color = (const SDL_Color*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, col)); // SDL 2.0.19+
+
+                // Bind texture, Draw
+                SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
+                SDL_RenderGeometryRaw8BitColor(renderer, bd->ColorBuffer, tex,
+                    xy, (int)sizeof(ImDrawVert),
+                    color, (int)sizeof(ImDrawVert),
+                    uv, (int)sizeof(ImDrawVert),
+                    draw_list->VtxBuffer.Size - pcmd->VtxOffset,
+                    idx_buffer + pcmd->IdxOffset, pcmd->ElemCount, sizeof(ImDrawIdx));
+            }
+        }
+    }
+    platform_io.Renderer_RenderState = nullptr;
+
+    // Restore modified SDL_Renderer state
+    SDL_SetRenderViewport(renderer, old.ViewportEnabled ? &old.Viewport : nullptr);
+    SDL_SetRenderClipRect(renderer, old.ClipEnabled ? &old.ClipRect : nullptr);
+}
+
+void ImGui_ImplSDLRenderer3_UpdateTexture(ImTextureData* tex)
+{
+    ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
+
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == 0 && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+
+        // Create texture
+        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+        SDL_Texture* sdl_texture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STATIC, tex->Width, tex->Height);
+        IM_ASSERT(sdl_texture != nullptr && "Backend failed to create texture!");
+        SDL_UpdateTexture(sdl_texture, nullptr, tex->GetPixels(), tex->GetPitch());
+        SDL_SetTextureBlendMode(sdl_texture, SDL_BLENDMODE_BLEND);
+        SDL_SetTextureScaleMode(sdl_texture, SDL_SCALEMODE_LINEAR);
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)sdl_texture);
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Update selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
+        SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID;
+        for (ImTextureRect& r : tex->Updates)
+        {
+            SDL_Rect sdl_r = { r.x, r.y, r.w, r.h };
+            SDL_UpdateTexture(sdl_texture, &sdl_r, tex->GetPixelsAt(r.x, r.y), tex->GetPitch());
+        }
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    else if (tex->Status == ImTextureStatus_WantDestroy)
+    {
+        if (SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID)
+            SDL_DestroyTexture(sdl_texture);
+
+        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->SetStatus(ImTextureStatus_Destroyed);
+    }
+}
+
+void ImGui_ImplSDLRenderer3_CreateDeviceObjects()
+{
+}
+
+void ImGui_ImplSDLRenderer3_DestroyDeviceObjects()
+{
+    // Destroy all textures
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+        {
+            tex->SetStatus(ImTextureStatus_WantDestroy);
+            ImGui_ImplSDLRenderer3_UpdateTexture(tex);
+        }
+}
+
+//-----------------------------------------------------------------------------
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_sdlrenderer3.h

@@ -0,0 +1,55 @@
+// dear imgui: Renderer Backend for SDL_Renderer for SDL3
+// (Requires: SDL 3.1.8+)
+
+// Note that SDL_Renderer is an _optional_ component of SDL3, which IMHO is now largely obsolete.
+// For a multi-platform app consider using other technologies:
+// - SDL3+SDL_GPU: SDL_GPU is SDL3 new graphics abstraction API.
+// - SDL3+DirectX, SDL3+OpenGL, SDL3+Vulkan: combine SDL with dedicated renderers.
+// If your application wants to render any non trivial amount of graphics other than UI,
+// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user
+// and it might be difficult to step out of those boundaries.
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+// Missing features:
+//  [ ] Renderer: Multi-viewport support (multiple windows).
+
+// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct SDL_Renderer;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplSDLRenderer3_Init(SDL_Renderer* renderer);
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer);
+
+// Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_UpdateTexture(ImTextureData* tex);
+
+// [BETA] Selected render state data shared with callbacks.
+// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplSDLRenderer3_RenderDrawData() call.
+// (Please open an issue if you feel you need access to more data)
+struct ImGui_ImplSDLRenderer3_RenderState
+{
+    SDL_Renderer*       Renderer;
+};
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_vulkan.h

@@ -0,0 +1,259 @@
+// dear imgui: Renderer Backend for Vulkan
+// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
+
+// Implemented features:
+//  [!] Renderer: User texture binding. Use 'VkDescriptorSet' as texture identifier. Call ImGui_ImplVulkan_AddTexture() to register one. Read the FAQ about ImTextureID/ImTextureRef + https://github.com/ocornut/imgui/pull/914 for discussions.
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+//  [x] Renderer: Multi-viewport / platform windows. With issues (flickering when creating a new viewport).
+
+// The aim of imgui_impl_vulkan.h/.cpp is to be usable in your engine without any modification.
+// IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// Important note to the reader who wish to integrate imgui_impl_vulkan.cpp/.h in their own engine/app.
+// - Common ImGui_ImplVulkan_XXX functions and structures are used to interface with imgui_impl_vulkan.cpp/.h.
+//   You will use those if you want to use this rendering backend in your engine/app.
+// - Helper ImGui_ImplVulkanH_XXX functions and structures are only used by this example (main.cpp) and by
+//   the backend itself (imgui_impl_vulkan.cpp), but should PROBABLY NOT be used by your own engine/app code.
+// Read comments in imgui_impl_vulkan.h.
+
+#pragma once
+#ifndef IMGUI_DISABLE
+#include "imgui.h"      // IMGUI_IMPL_API
+
+// [Configuration] in order to use a custom Vulkan function loader:
+// (1) You'll need to disable default Vulkan function prototypes.
+//     We provide a '#define IMGUI_IMPL_VULKAN_NO_PROTOTYPES' convenience configuration flag.
+//     In order to make sure this is visible from the imgui_impl_vulkan.cpp compilation unit:
+//     - Add '#define IMGUI_IMPL_VULKAN_NO_PROTOTYPES' in your imconfig.h file
+//     - Or as a compilation flag in your build system
+//     - Or uncomment here (not recommended because you'd be modifying imgui sources!)
+//     - Do not simply add it in a .cpp file!
+// (2) Call ImGui_ImplVulkan_LoadFunctions() before ImGui_ImplVulkan_Init() with your custom function.
+// If you have no idea what this is, leave it alone!
+//#define IMGUI_IMPL_VULKAN_NO_PROTOTYPES
+
+// [Configuration] Convenience support for Volk
+// (you can also technically use IMGUI_IMPL_VULKAN_NO_PROTOTYPES + wrap Volk via ImGui_ImplVulkan_LoadFunctions().)
+// (When using Volk from directory outside your include directories list you can specify full path to the volk.h header,
+//  for example when using Volk from VulkanSDK and using include_directories(${Vulkan_INCLUDE_DIRS})' from 'find_package(Vulkan REQUIRED)')
+//#define IMGUI_IMPL_VULKAN_USE_VOLK
+//#define IMGUI_IMPL_VULKAN_VOLK_FILENAME    <Volk/volk.h>
+//#define IMGUI_IMPL_VULKAN_VOLK_FILENAME    <volk.h>       // Default
+// Reminder: make those changes in your imconfig.h file, not here!
+
+#if defined(IMGUI_IMPL_VULKAN_NO_PROTOTYPES) && !defined(VK_NO_PROTOTYPES)
+#define VK_NO_PROTOTYPES
+#endif
+#if defined(VK_USE_PLATFORM_WIN32_KHR) && !defined(NOMINMAX)
+#define NOMINMAX
+#endif
+
+// Vulkan includes
+#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
+#ifdef IMGUI_IMPL_VULKAN_VOLK_FILENAME
+#include IMGUI_IMPL_VULKAN_VOLK_FILENAME
+#else
+#include <volk.h>
+#endif
+#else
+#include <vulkan/vulkan.h>
+#endif
+#if defined(VK_VERSION_1_3) || defined(VK_KHR_dynamic_rendering)
+#define IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
+#endif
+
+// Backend uses a small number of descriptors per font atlas + as many as additional calls done to ImGui_ImplVulkan_AddTexture().
+#define IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE   (8)     // Minimum per atlas
+
+// Specify settings to create pipeline and swapchain
+struct ImGui_ImplVulkan_PipelineInfo
+{
+    // For Main viewport only
+    VkRenderPass                    RenderPass;                     // Ignored if using dynamic rendering
+
+    // For Main and Secondary viewports
+    uint32_t                        Subpass;                        //
+    VkSampleCountFlagBits           MSAASamples = {};               // 0 defaults to VK_SAMPLE_COUNT_1_BIT
+#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
+    VkPipelineRenderingCreateInfoKHR PipelineRenderingCreateInfo;   // Optional, valid if .sType == VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR
+#endif
+
+    // For Secondary viewports only (created/managed by backend)
+    VkImageUsageFlags               SwapChainImageUsage;            // Extra flags for vkCreateSwapchainKHR() calls for secondary viewports. We automatically add VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT. You can add e.g. VK_IMAGE_USAGE_TRANSFER_SRC_BIT if you need to capture from viewports.
+};
+
+// Initialization data, for ImGui_ImplVulkan_Init()
+// [Please zero-clear before use!]
+// - About descriptor pool:
+//   - A VkDescriptorPool should be created with VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
+//     and must contain a pool size large enough to hold a small number of VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER descriptors.
+//   - As an convenience, by setting DescriptorPoolSize > 0 the backend will create one for you.
+// - About dynamic rendering:
+//   - When using dynamic rendering, set UseDynamicRendering=true + fill PipelineInfoMain.PipelineRenderingCreateInfo structure.
+struct ImGui_ImplVulkan_InitInfo
+{
+    uint32_t                        ApiVersion;                 // Fill with API version of Instance, e.g. VK_API_VERSION_1_3 or your value of VkApplicationInfo::apiVersion. May be lower than header version (VK_HEADER_VERSION_COMPLETE)
+    VkInstance                      Instance;
+    VkPhysicalDevice                PhysicalDevice;
+    VkDevice                        Device;
+    uint32_t                        QueueFamily;
+    VkQueue                         Queue;
+    VkDescriptorPool                DescriptorPool;             // See requirements in note above; ignored if using DescriptorPoolSize > 0
+    uint32_t                        DescriptorPoolSize;         // Optional: set to create internal descriptor pool automatically instead of using DescriptorPool.
+    uint32_t                        MinImageCount;              // >= 2
+    uint32_t                        ImageCount;                 // >= MinImageCount
+    VkPipelineCache                 PipelineCache;              // Optional
+
+    // Pipeline
+    ImGui_ImplVulkan_PipelineInfo   PipelineInfoMain;           // Infos for Main Viewport (created by app/user)
+    ImGui_ImplVulkan_PipelineInfo   PipelineInfoForViewports;   // Infos for Secondary Viewports (created by backend)
+    //VkRenderPass                  RenderPass;                 // --> Since 2025/09/26: set 'PipelineInfoMain.RenderPass' instead
+    //uint32_t                      Subpass;                    // --> Since 2025/09/26: set 'PipelineInfoMain.Subpass' instead
+    //VkSampleCountFlagBits         MSAASamples;                // --> Since 2025/09/26: set 'PipelineInfoMain.MSAASamples' instead
+    //VkPipelineRenderingCreateInfoKHR PipelineRenderingCreateInfo; // Since 2025/09/26: set 'PipelineInfoMain.PipelineRenderingCreateInfo' instead
+
+    // (Optional) Dynamic Rendering
+    // Need to explicitly enable VK_KHR_dynamic_rendering extension to use this, even for Vulkan 1.3 + setup PipelineInfoMain.PipelineRenderingCreateInfo and PipelineInfoViewports.PipelineRenderingCreateInfo.
+    bool                            UseDynamicRendering;
+
+    // (Optional) Allocation, Debugging
+    const VkAllocationCallbacks*    Allocator;
+    void                            (*CheckVkResultFn)(VkResult err);
+    VkDeviceSize                    MinAllocationSize;          // Minimum allocation size. Set to 1024*1024 to satisfy zealous best practices validation layer and waste a little memory.
+
+    // (Optional) Customize default vertex/fragment shaders.
+    // - if .sType == VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO we use specified structs, otherwise we use defaults.
+    // - Shader inputs/outputs need to match ours. Code/data pointed to by the structure needs to survive for whole during of backend usage.
+    VkShaderModuleCreateInfo        CustomShaderVertCreateInfo;
+    VkShaderModuleCreateInfo        CustomShaderFragCreateInfo;
+};
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool             ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info);
+IMGUI_IMPL_API void             ImGui_ImplVulkan_Shutdown();
+IMGUI_IMPL_API void             ImGui_ImplVulkan_NewFrame();
+IMGUI_IMPL_API void             ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer, VkPipeline pipeline = VK_NULL_HANDLE);
+IMGUI_IMPL_API void             ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count); // To override MinImageCount after initialization (e.g. if swap chain is recreated)
+
+// (Advanced) Use e.g. if you need to recreate pipeline without reinitializing the backend (see #8110, #8111)
+// The main window pipeline will be created by ImGui_ImplVulkan_Init() if possible (== RenderPass xor (UseDynamicRendering && PipelineRenderingCreateInfo->sType == VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR))
+// Else, the pipeline can be created, or re-created, using ImGui_ImplVulkan_CreateMainPipeline() before rendering.
+IMGUI_IMPL_API void             ImGui_ImplVulkan_CreateMainPipeline(const ImGui_ImplVulkan_PipelineInfo* info);
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void             ImGui_ImplVulkan_UpdateTexture(ImTextureData* tex);
+
+// Register a texture (VkDescriptorSet == ImTextureID)
+// FIXME: This is experimental in the sense that we are unsure how to best design/tackle this problem
+// Please post to https://github.com/ocornut/imgui/pull/914 if you have suggestions.
+IMGUI_IMPL_API VkDescriptorSet  ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image_view, VkImageLayout image_layout);
+IMGUI_IMPL_API void             ImGui_ImplVulkan_RemoveTexture(VkDescriptorSet descriptor_set);
+
+// Optional: load Vulkan functions with a custom function loader
+// This is only useful with IMGUI_IMPL_VULKAN_NO_PROTOTYPES / VK_NO_PROTOTYPES
+IMGUI_IMPL_API bool             ImGui_ImplVulkan_LoadFunctions(uint32_t api_version, PFN_vkVoidFunction(*loader_func)(const char* function_name, void* user_data), void* user_data = nullptr);
+
+// [BETA] Selected render state data shared with callbacks.
+// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplVulkan_RenderDrawData() call.
+// (Please open an issue if you feel you need access to more data)
+struct ImGui_ImplVulkan_RenderState
+{
+    VkCommandBuffer     CommandBuffer;
+    VkPipeline          Pipeline;
+    VkPipelineLayout    PipelineLayout;
+};
+
+//-------------------------------------------------------------------------
+// Internal / Miscellaneous Vulkan Helpers
+//-------------------------------------------------------------------------
+// Used by example's main.cpp. Used by multi-viewport features. PROBABLY NOT used by your own engine/app.
+//
+// You probably do NOT need to use or care about those functions.
+// Those functions only exist because:
+//   1) they facilitate the readability and maintenance of the multiple main.cpp examples files.
+//   2) the multi-viewport / platform window implementation needs them internally.
+// Generally we avoid exposing any kind of superfluous high-level helpers in the backends,
+// but it is too much code to duplicate everywhere so we exceptionally expose them.
+//
+// Your engine/app will likely _already_ have code to setup all that stuff (swap chain,
+// render pass, frame buffers, etc.). You may read this code if you are curious, but
+// it is recommended you use your own custom tailored code to do equivalent work.
+//
+// We don't provide a strong guarantee that we won't change those functions API.
+//
+// The ImGui_ImplVulkanH_XXX functions should NOT interact with any of the state used
+// by the regular ImGui_ImplVulkan_XXX functions.
+//-------------------------------------------------------------------------
+
+struct ImGui_ImplVulkanH_Frame;
+struct ImGui_ImplVulkanH_Window;
+
+// Helpers
+IMGUI_IMPL_API void                 ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count, VkImageUsageFlags image_usage);
+IMGUI_IMPL_API void                 ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator);
+IMGUI_IMPL_API VkSurfaceFormatKHR   ImGui_ImplVulkanH_SelectSurfaceFormat(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkFormat* request_formats, int request_formats_count, VkColorSpaceKHR request_color_space);
+IMGUI_IMPL_API VkPresentModeKHR     ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkPresentModeKHR* request_modes, int request_modes_count);
+IMGUI_IMPL_API VkPhysicalDevice     ImGui_ImplVulkanH_SelectPhysicalDevice(VkInstance instance);
+IMGUI_IMPL_API uint32_t             ImGui_ImplVulkanH_SelectQueueFamilyIndex(VkPhysicalDevice physical_device);
+IMGUI_IMPL_API int                  ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_mode);
+IMGUI_IMPL_API ImGui_ImplVulkanH_Window* ImGui_ImplVulkanH_GetWindowDataFromViewport(ImGuiViewport* viewport); // Access to Vulkan objects associated with a viewport (e.g to export a screenshot)
+
+// Helper structure to hold the data needed by one rendering frame
+// (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own engine/app.)
+// [Please zero-clear before use!]
+struct ImGui_ImplVulkanH_Frame
+{
+    VkCommandPool       CommandPool;
+    VkCommandBuffer     CommandBuffer;
+    VkFence             Fence;
+    VkImage             Backbuffer;
+    VkImageView         BackbufferView;
+    VkFramebuffer       Framebuffer;
+};
+
+struct ImGui_ImplVulkanH_FrameSemaphores
+{
+    VkSemaphore         ImageAcquiredSemaphore;
+    VkSemaphore         RenderCompleteSemaphore;
+};
+
+// Helper structure to hold the data needed by one rendering context into one OS window
+// (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own engine/app.)
+struct ImGui_ImplVulkanH_Window
+{
+    int                 Width;
+    int                 Height;
+    VkSwapchainKHR      Swapchain;
+    VkSurfaceKHR        Surface;
+    VkSurfaceFormatKHR  SurfaceFormat;
+    VkPresentModeKHR    PresentMode;
+    VkRenderPass        RenderPass;
+    bool                UseDynamicRendering;
+    bool                ClearEnable;
+    VkClearValue        ClearValue;
+    uint32_t            FrameIndex;             // Current frame being rendered to (0 <= FrameIndex < FrameInFlightCount)
+    uint32_t            ImageCount;             // Number of simultaneous in-flight frames (returned by vkGetSwapchainImagesKHR, usually derived from min_image_count)
+    uint32_t            SemaphoreCount;         // Number of simultaneous in-flight frames + 1, to be able to use it in vkAcquireNextImageKHR
+    uint32_t            SemaphoreIndex;         // Current set of swapchain wait semaphores we're using (needs to be distinct from per frame data)
+    ImVector<ImGui_ImplVulkanH_Frame>           Frames;
+    ImVector<ImGui_ImplVulkanH_FrameSemaphores> FrameSemaphores;
+
+    ImGui_ImplVulkanH_Window()
+    {
+        memset((void*)this, 0, sizeof(*this));
+        PresentMode = (VkPresentModeKHR)~0;     // Ensure we get an error if user doesn't set this.
+        ClearEnable = true;
+    }
+};
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_wgpu.h

@@ -0,0 +1,123 @@
+// dear imgui: Renderer for WebGPU
+// This needs to be used along with a Platform Binding (e.g. GLFW, SDL2, SDL3)
+// (Please note that WebGPU is a recent API, may not be supported by all browser, and its ecosystem is generally a mess)
+
+// When targeting native platforms:
+//  - One of IMGUI_IMPL_WEBGPU_BACKEND_DAWN or IMGUI_IMPL_WEBGPU_BACKEND_WGPU *must* be provided.
+// When targeting Emscripten:
+//  - We now defaults to IMGUI_IMPL_WEBGPU_BACKEND_DAWN is Emscripten version is 4.0.10+, which correspond to using Emscripten '--use-port=emdawnwebgpu'.
+//  - We can still define IMGUI_IMPL_WEBGPU_BACKEND_WGPU to use Emscripten '-s USE_WEBGPU=1' which is marked as obsolete by Emscripten.
+// Add #define to your imconfig.h file, or as a compilation flag in your build system.
+// This requirement may be removed once WebGPU stabilizes and backends converge on a unified interface.
+//#define IMGUI_IMPL_WEBGPU_BACKEND_DAWN
+//#define IMGUI_IMPL_WEBGPU_BACKEND_WGPU
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID/ImTextureRef!
+//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+//  [X] Renderer: Texture updates support for dynamic font system (ImGuiBackendFlags_RendererHasTextures).
+// Missing features or Issues:
+//  [ ] Renderer: Multi-viewport support (multiple windows), useful for desktop.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"          // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+// Setup Emscripten default if not specified.
+#if defined(__EMSCRIPTEN__) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+#include <emscripten/version.h>
+#if (__EMSCRIPTEN_major__ >= 4) && (__EMSCRIPTEN_minor__ >= 0) && (__EMSCRIPTEN_tiny__ >= 10)
+#define IMGUI_IMPL_WEBGPU_BACKEND_DAWN
+#else
+#define IMGUI_IMPL_WEBGPU_BACKEND_WGPU
+#endif
+#endif
+
+#include <webgpu/webgpu.h>
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) && !defined(__EMSCRIPTEN__)
+#include <webgpu/wgpu.h>        // WGPULogLevel
+#endif
+
+// Initialization data, for ImGui_ImplWGPU_Init()
+struct ImGui_ImplWGPU_InitInfo
+{
+    WGPUDevice              Device = nullptr;
+    int                     NumFramesInFlight = 3;
+    WGPUTextureFormat       RenderTargetFormat = WGPUTextureFormat_Undefined;
+    WGPUTextureFormat       DepthStencilFormat = WGPUTextureFormat_Undefined;
+    WGPUMultisampleState    PipelineMultisampleState = {};
+
+    ImGui_ImplWGPU_InitInfo()
+    {
+        PipelineMultisampleState.count = 1;
+        PipelineMultisampleState.mask = UINT32_MAX;
+        PipelineMultisampleState.alphaToCoverageEnabled = false;
+    }
+};
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info);
+IMGUI_IMPL_API void ImGui_ImplWGPU_Shutdown();
+IMGUI_IMPL_API void ImGui_ImplWGPU_NewFrame();
+IMGUI_IMPL_API void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder);
+
+// Use if you want to reset your rendering device without losing Dear ImGui state.
+IMGUI_IMPL_API bool ImGui_ImplWGPU_CreateDeviceObjects();
+IMGUI_IMPL_API void ImGui_ImplWGPU_InvalidateDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
+IMGUI_IMPL_API void ImGui_ImplWGPU_UpdateTexture(ImTextureData* tex);
+
+// [BETA] Selected render state data shared with callbacks.
+// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplWGPU_RenderDrawData() call.
+// (Please open an issue if you feel you need access to more data)
+struct ImGui_ImplWGPU_RenderState
+{
+    WGPUDevice                  Device;
+    WGPURenderPassEncoder       RenderPassEncoder;
+};
+
+//-------------------------------------------------------------------------
+// Internal Helpers
+// Those are currently used by our example applications.
+//-------------------------------------------------------------------------
+
+// (Optional) Helper to wrap some of the Dawn/WGPU/Emscripten quirks
+bool        ImGui_ImplWGPU_IsSurfaceStatusError(WGPUSurfaceGetCurrentTextureStatus status);
+bool        ImGui_ImplWGPU_IsSurfaceStatusSubOptimal(WGPUSurfaceGetCurrentTextureStatus status);    // Return whether the texture is suboptimal and may need to be recreated.
+
+// (Optional) Helper for debugging/logging
+void        ImGui_ImplWGPU_DebugPrintAdapterInfo(const WGPUAdapter& adapter);
+const char* ImGui_ImplWGPU_GetBackendTypeName(WGPUBackendType type);
+const char* ImGui_ImplWGPU_GetAdapterTypeName(WGPUAdapterType type);
+#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
+const char* ImGui_ImplWGPU_GetDeviceLostReasonName(WGPUDeviceLostReason type);
+const char* ImGui_ImplWGPU_GetErrorTypeName(WGPUErrorType type);
+#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) && !defined(__EMSCRIPTEN__)
+const char* ImGui_ImplWGPU_GetLogLevelName(WGPULogLevel level);
+#endif
+
+// (Optional) Helper to create a surface on macOS/Wayland/X11/Window
+#ifndef __EMSCRIPTEN__
+struct ImGui_ImplWGPU_CreateSurfaceInfo
+{
+    WGPUInstance    Instance;
+    const char*     System;      // "cocoa"   | "wayland"   | "x11"     | "win32"
+    void*           RawWindow;   // NSWindow* | 0           | Window    | HWND
+    void*           RawDisplay;  // 0         | wl_display* | Display*  | 0
+    void*           RawSurface;  //           | wl_surface* | 0         | 0
+    void*           RawInstance; // 0         | 0           | 0         | HINSTANCE
+};
+WGPUSurface ImGui_ImplWGPU_CreateWGPUSurfaceHelper(ImGui_ImplWGPU_CreateSurfaceInfo* info);
+#endif // #ifndef __EMSCRIPTEN__
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/imgui_impl_win32.h

@@ -0,0 +1,54 @@
+// dear imgui: Platform Backend for Windows (standard windows API for 32-bits AND 64-bits applications)
+// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
+
+// Implemented features:
+//  [X] Platform: Clipboard support (for Win32 this is actually part of core dear imgui)
+//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen.
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy VK_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Gamepad support.
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplWin32_Init(void* hwnd);
+IMGUI_IMPL_API bool     ImGui_ImplWin32_InitForOpenGL(void* hwnd);
+IMGUI_IMPL_API void     ImGui_ImplWin32_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplWin32_NewFrame();
+
+// Win32 message handler your application need to call.
+// - Intentionally commented out in a '#if 0' block to avoid dragging dependencies on <windows.h> from this helper.
+// - You should COPY the line below into your .cpp code to forward declare the function and then you can call it.
+// - Call from your application's message handler. Keep calling your message handler unless this function returns TRUE.
+
+#if 0
+extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
+#endif
+
+// DPI-related helpers (optional)
+// - Use to enable DPI awareness without having to create an application manifest.
+// - Your own app may already do this via a manifest or explicit calls. This is mostly useful for our examples/ apps.
+// - In theory we could call simple functions from Windows SDK such as SetProcessDPIAware(), SetProcessDpiAwareness(), etc.
+//   but most of the functions provided by Microsoft require Windows 8.1/10+ SDK at compile time and Windows 8/10+ at runtime,
+//   neither we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
+IMGUI_IMPL_API void     ImGui_ImplWin32_EnableDpiAwareness();
+IMGUI_IMPL_API float    ImGui_ImplWin32_GetDpiScaleForHwnd(void* hwnd);       // HWND hwnd
+IMGUI_IMPL_API float    ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor); // HMONITOR monitor
+
+// Transparency related helpers (optional) [experimental]
+// - Use to enable alpha compositing transparency with the desktop.
+// - Use together with e.g. clearing your framebuffer with zero-alpha.
+IMGUI_IMPL_API void     ImGui_ImplWin32_EnableAlphaCompositing(void* hwnd);   // HWND hwnd
+
+#endif // #ifndef IMGUI_DISABLE

lib/imgui/backends/sdlgpu3/build_instructions.txt

@@ -0,0 +1,40 @@
+
+Instructions to rebuild imgui_impl_sdlgpu3_shaders.h
+(You don't need to copy this folder if you are using the backend as-is)
+
+1) Compile the raw shader files to SPIRV:
+
+    glslc -o vertex.spv -c shader.vert
+    glslc -o fragment.spv -c shader.frag
+
+
+2) Build SDL_shadercross (https://github.com/libsdl-org/SDL_shadercross)
+
+
+3-A) Compiling for the Vulkan Driver:
+
+    Nothing to do, you just need the previous vertex.spv/fragment.spv, proceed to step 4
+
+
+3-B) Compiling for the DirectX 12 Driver:
+
+    ./shadercross vertex.spv -s SPIRV -d DXBC -t vertex -e main -o vertex.dxbc
+    ./shadercross fragment.spv -s SPIRV -d DXBC -t fragment -e main -o fragment.dxbc
+
+    Proceed to step 4
+
+
+3-C) Compiling for Metal (On windows you'll need the Metal Developer Tools for Windows, on linux you might use wine, but I never tested it):
+
+    ./shadercross vertex.spv -s SPIRV -d MSL -t vertex -e main -o vertex.metal
+    ./shadercross fragment.spv -s SPIRV -d MSL -t fragment -e main -o fragment.metal
+
+    xcrun -sdk macosx metal -o vertex.ir -c vertex.metal
+    xcrun -sdk macosx metal -o fragment.ir -c fragment.metal
+    xcrun -sdk macosx metallib -o vertex.metallib -c vertex.ir
+    xcrun -sdk macosx metallib -o fragment.metallib -c fragment.ir
+
+    Proceed to step 4
+
+
+4) Use a tool like https://notisrac.github.io/FileToCArray/ or misc/fonts/binary_to_compressed_c.cpp in imgui repository to convert the file to a uint8_t array.

lib/imgui/backends/sdlgpu3/shader.frag

@@ -0,0 +1,15 @@
+#version 450 core
+layout(location = 0) out vec4 fColor;
+
+layout(set=2, binding=0) uniform sampler2D sTexture;
+
+layout(location = 0) in struct
+{
+    vec4 Color;
+    vec2 UV;
+} In;
+
+void main()
+{
+    fColor = In.Color * texture(sTexture, In.UV.st);
+}

lib/imgui/backends/sdlgpu3/shader.vert

@@ -0,0 +1,24 @@
+#version 450 core
+layout(location = 0) in vec2 aPos;
+layout(location = 1) in vec2 aUV;
+layout(location = 2) in vec4 aColor;
+
+layout(set=1,binding=0) uniform UBO
+{
+    vec2 uScale;
+    vec2 uTranslate;
+} ubo;
+
+layout(location = 0) out struct
+{
+    vec4 Color;
+    vec2 UV;
+} Out;
+
+void main()
+{
+    Out.Color = aColor;
+    Out.UV = aUV;
+    gl_Position = vec4(aPos * ubo.uScale + ubo.uTranslate, 0, 1);
+    gl_Position.y *= -1.0f;
+}

lib/imgui/backends/vulkan/build_instructions.txt

@@ -0,0 +1,4 @@
+
+Script to rebuild shaders stored inside imgui_impl_vulkan.h
+(You don't need to copy this folder if you are using the backend as-is)
+

lib/imgui/backends/vulkan/generate_spv.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+## -V: create SPIR-V binary
+## -x: save binary output as text-based 32-bit hexadecimal numbers
+## -o: output file
+glslangValidator -V -x -o glsl_shader.frag.u32 glsl_shader.frag
+glslangValidator -V -x -o glsl_shader.vert.u32 glsl_shader.vert

lib/imgui/backends/vulkan/glsl_shader.frag

@@ -0,0 +1,14 @@
+#version 450 core
+layout(location = 0) out vec4 fColor;
+
+layout(set=0, binding=0) uniform sampler2D sTexture;
+
+layout(location = 0) in struct {
+    vec4 Color;
+    vec2 UV;
+} In;
+
+void main()
+{
+    fColor = In.Color * texture(sTexture, In.UV.st);
+}

lib/imgui/backends/vulkan/glsl_shader.vert

@@ -0,0 +1,25 @@
+#version 450 core
+layout(location = 0) in vec2 aPos;
+layout(location = 1) in vec2 aUV;
+layout(location = 2) in vec4 aColor;
+
+layout(push_constant) uniform uPushConstant {
+    vec2 uScale;
+    vec2 uTranslate;
+} pc;
+
+out gl_PerVertex {
+    vec4 gl_Position;
+};
+
+layout(location = 0) out struct {
+    vec4 Color;
+    vec2 UV;
+} Out;
+
+void main()
+{
+    Out.Color = aColor;
+    Out.UV = aUV;
+    gl_Position = vec4(aPos * pc.uScale + pc.uTranslate, 0, 1);
+}

lib/imgui/docs/BACKENDS.md

@@ -0,0 +1,379 @@
+_(You may browse this at https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md or view this file with any Markdown viewer)_
+
+# Dear ImGui: Backends
+
+## Index
+
+- [Introduction](#introduction)
+   - [Getting Started](#getting-started)
+   - [What are Backends?](#what-are-backends)
+- [Using standard Backends](#using-standard-backends)
+- [Using third-party Backends](#using-third-party-backends)
+- [Writing your own Backend](#writing-your-own-backend)
+  - [Using a custom engine?](#using-a-custom-engine)
+  - [Platform: Implementing your Platform Backend](#platform-implementing-your-platform-backend)
+  - [Rendering: Implementing your RenderDrawData function](#rendering-implementing-your-renderdrawdata-function)
+  - [Rendering: Adding support for `ImGuiBackendFlags_RendererHasTextures` (1.92+)](#rendering-adding-support-for-imguibackendflags_rendererhastextures-192)
+
+## Introduction
+
+### Getting Started
+
+💡 The **[Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) wiki guide** has examples of how to integrate Dear ImGui into an existing application.
+<BR> The [EXAMPLES.MD](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md) documentation may also be worth a read.
+
+### What are Backends?
+
+Dear ImGui is highly portable and only requires a few things to run and render, typically:
+
+ - Required: providing mouse/keyboard inputs (fed into the `ImGuiIO` structure).
+ - Required: creating, updating and destroying textures.
+ - Required: rendering indexed textured triangles with a clipping rectangle.
+
+ Extra features are opt-in, our backends try to support as many as possible:
+
+ - Optional: custom texture binding support.
+ - Optional: clipboard support.
+ - Optional: gamepad support.
+ - Optional: mouse cursor shape support.
+ - Optional: IME support.
+ - Optional: multi-viewports support.
+ etc.
+
+This is essentially what each backend is doing + obligatory portability cruft. Using standard backends ensure you can get all those features including the ones that would be harder to implement on your side (e.g. multi-viewports support).
+
+It is important to understand the difference between the core Dear ImGui library (files in the root folder)
+and the backends which we are describing here (backends/ folder).
+
+- Some issues may only be backend or platform specific.
+- You should be able to write backends for pretty much any platform and any 3D graphics API.
+  e.g. you can get creative and use software rendering or render remotely on a different machine.
+
+## Using standard Backends
+
+**The [backends/](https://github.com/ocornut/imgui/blob/master/backends) folder contains backends for popular platforms/graphics API, which you can use in
+your application or engine to easily integrate Dear ImGui.** Each backend is typically self-contained in a pair of files: imgui_impl_XXXX.cpp + imgui_impl_XXXX.h.
+
+- The 'Platform' backends are in charge of: mouse/keyboard/gamepad inputs, cursor shape, timing, and windowing.<BR>
+  e.g. Windows ([imgui_impl_win32.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_win32.cpp)), SDL3 ([imgui_impl_sdl3.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_sdl3.cpp)), GLFW ([imgui_impl_glfw.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_glfw.cpp)), etc.
+
+- The 'Renderer' backends are in charge of: creating atlas texture, and rendering imgui draw data.<BR>
+  e.g. DirectX11 ([imgui_impl_dx11.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_dx11.cpp)), OpenGL/WebGL ([imgui_impl_opengl3.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_opengl3.cpp)), Vulkan ([imgui_impl_vulkan.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_vulkan.cpp)), etc.
+
+- For some high-level frameworks, a single backend usually handles both 'Platform' and 'Renderer' parts.<BR>
+  e.g. Allegro 5 ([imgui_impl_allegro5.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_allegro5.cpp)). If you end up creating a custom backend for your engine, you may want to do the same.
+
+An application usually combines one Platform backend + one Renderer backend + main Dear ImGui sources.
+For example, the [example_win32_directx11](https://github.com/ocornut/imgui/tree/master/examples/example_win32_directx11) application combines imgui_impl_win32.cpp + imgui_impl_dx11.cpp. There are 20+ examples in the [examples/](https://github.com/ocornut/imgui/blob/master/examples/) folder. See [EXAMPLES.MD](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md) for details.
+
+**Once Dear ImGui is setup and running, run and refer to `ImGui::ShowDemoWindow()` in imgui_demo.cpp for usage of the end-user API.**
+
+### List of standard Backends
+
+In the [backends/](https://github.com/ocornut/imgui/blob/master/backends) folder:
+
+List of Platforms Backends:
+
+    imgui_impl_android.cpp      ; Android native app API
+    imgui_impl_glfw.cpp         ; GLFW (Windows, macOS, Linux, etc.) http://www.glfw.org/
+    imgui_impl_osx.mm           ; macOS native API (not as feature complete as glfw/sdl backends)
+    imgui_impl_sdl2.cpp         ; SDL2 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
+    imgui_impl_sdl3.cpp         ; SDL3 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
+    imgui_impl_win32.cpp        ; Win32 native API (Windows)
+    imgui_impl_glut.cpp         ; GLUT/FreeGLUT (this is prehistoric software and absolutely not recommended today!)
+
+List of Renderer Backends:
+
+    imgui_impl_dx9.cpp          ; DirectX9
+    imgui_impl_dx10.cpp         ; DirectX10
+    imgui_impl_dx11.cpp         ; DirectX11
+    imgui_impl_dx12.cpp         ; DirectX12
+    imgui_impl_metal.mm         ; Metal (ObjC or C++)
+    imgui_impl_opengl2.cpp      ; OpenGL 2 (legacy fixed pipeline. Don't use with modern OpenGL code!)
+    imgui_impl_opengl3.cpp      ; OpenGL 3/4, OpenGL ES 2/3, WebGL
+    imgui_impl_sdlgpu3.cpp      ; SDL_GPU (portable 3D graphics API of SDL3)
+    imgui_impl_sdlrenderer2.cpp ; SDL_Renderer (optional component of SDL2 available from SDL 2.0.18+)
+    imgui_impl_sdlrenderer3.cpp ; SDL_Renderer (optional component of SDL3. Prefer using SDL_GPU!).
+    imgui_impl_vulkan.cpp       ; Vulkan
+    imgui_impl_wgpu.cpp         ; WebGPU (web + desktop)
+
+List of high-level Frameworks Backends (combining Platform + Renderer):
+
+    imgui_impl_allegro5.cpp
+    imgui_impl_null.cpp
+
+Emscripten is also supported!
+The SDL2+GL, SDL3+GL, GLFW+GL and GLFW+WebGPU examples are all ready to build and run with Emscripten.
+
+### Recommended Backends
+
+If you are not sure which backend to use, the recommended platform/frameworks for portable applications:
+
+|Library |Website |Backend |Note |
+|--------|--------|--------|-----|
+| SDL3 | https://www.libsdl.org | imgui_impl_sdl3.cpp | Recommended |
+| SDL2 | https://www.libsdl.org | imgui_impl_sdl2.cpp | |
+| GLFW | https://github.com/glfw/glfw | imgui_impl_glfw.cpp | |
+| Sokol | https://github.com/floooh/sokol | [util/sokol_imgui.h](https://github.com/floooh/sokol/blob/master/util/sokol_imgui.h) | Lower-level than GLFW/SDL |
+
+If your application runs on Windows or if you are using multi-viewport, the win32 backend handles some details a little better than other backends.
+
+## Using third-party Backends
+
+See https://github.com/ocornut/imgui/wiki/Bindings for the full list (e.g. Adventure Game Studio, Cinder, Cocos2d-x, Game Maker Studio2, Godot, LÖVE+LUA, Magnum, Monogame, Ogre, openFrameworks, OpenSceneGraph, SFML, Sokol, Unity, Unreal Engine and many others).
+
+## Writing your own Backend
+
+### Using a custom engine?
+
+You will likely be tempted to start by rewrite your own backend using your own custom/high-level facilities...<BR>
+Think twice!
+
+TL;DR;
+- Writing your own Renderer Backend is easy.
+- Writing your own Platform Backend is harder and you are more likely to introduce bugs.
+- **It is unlikely you will add value to your project by creating your own backend.**
+
+**Consider using the existing backends as-is**.
+You will save lots of time integrating the library.
+Standard backends are battle-tested and handle subtleties that you are likely to implement incorrectly.
+You can LATER decide to rewrite yourself a custom backend if you really need to.
+In most situations, custom backends have fewer features and more bugs than the standard backends we provide.
+If you want portability, you can use multiple backends and choose between them either at compile time
+or at runtime.
+
+**Example A**: your engine is built over Windows + DirectX11 but you have your own high-level rendering
+system layered over DirectX11.<BR>
+Suggestion: try using imgui_impl_win32.cpp + imgui_impl_dx11.cpp first.
+Once it works, if you really need it, you can replace the imgui_impl_dx11.cpp code with a
+custom renderer using your own rendering functions, and keep using the standard Win32 code etc.
+
+**Example B**: your engine runs on Windows, Mac, Linux and uses DirectX11, Metal, and Vulkan respectively.<BR>
+Suggestion: use multiple generic backends!
+Once it works, if you really need it, you can replace parts of backends with your own abstractions.
+
+**Example C**: your engine runs on platforms we can't provide public backends for (e.g. PS4/PS5, Switch),
+and you have high-level systems everywhere.<BR>
+Suggestion: try using a non-portable backend first (e.g. win32 + underlying graphics API) to get
+your desktop builds working first. This will get you running faster and get your acquainted with
+how Dear ImGui works and is setup. You can then rewrite a custom backend using your own engine API...
+
+Also:
+The [multi-viewports feature](https://github.com/ocornut/imgui/wiki/Multi-Viewports) of the 'docking' branch allows
+Dear ImGui windows to be seamlessly detached from the main application window. This is achieved using an
+extra layer to the Platform and Renderer backends, which allows Dear ImGui to communicate platform-specific
+requests such as: "create an additional OS window", "create a render context", "get the OS position of this
+window", but some things are more difficult "find OS window under mouse position BUT with some windows marked as passthrough". See 'ImGuiPlatformIO' for details.
+Supporting the multi-viewports feature correctly using 100% of your own abstractions is more difficult
+than supporting single-viewport.
+If you decide to use unmodified imgui_impl_XXXX.cpp files, you can automatically benefit from
+improvements and fixes related to viewports and platform windows without extra work on your side.
+
+### Platform: Implementing your Platform Backend
+
+The Platform backends in impl_impl_XXX.cpp files contain many implementations.
+
+**In your `ImGui_ImplXXX_Init()` function:**
+- You can allocate your backend data and use `io.BackendPlatformUserData` to store/retrieve it later.
+- Set `io.BackendPlatformName` to a name `"imgui_impl_xxxx"` which will be available in e.g. About box.
+- Set `io.BackendPlatformUserData` to your backend data.
+- Set `io.BackendFlags` with supported optional features:
+  - `ImGuiBackendFlags_HasGamepad`: supports gamepad and currently has one connected.
+  - `ImGuiBackendFlags_HasMouseCursors`: supports honoring GetMouseCursor() value to change the OS cursor shape.
+  - `ImGuiBackendFlags_HasSetMousePos`: supports io.WantSetMousePos requests to reposition the OS mouse position (only used if io.ConfigNavMoveSetMousePos is set).
+  - `ImGuiBackendFlags_PlatformHasViewports` supports multiple viewports. (multi-viewports only)
+  - `ImGuiBackendFlags_HasMouseHoveredViewport` supports calling io.AddMouseViewportEvent() with the viewport under the mouse. IF POSSIBLE, ignore viewports with the ImGuiViewportFlags_NoInputs flag. If this cannot be done, Dear ImGui needs to use a flawed heuristic to find the viewport under mouse position, as it doesn't know about foreign windows. (multi-viewports only)
+  - `ImGuiBackendFlags_HasParentViewport` supports honoring viewport->ParentViewportId value, by applying the corresponding parent/child relation at the Platform level.
+
+**In your `ImGui_ImplXXX_NewFrame()` function:**
+- Set `io.DeltaTime` to the time elapsed (in seconds) since last frame.
+- Set `io.DisplaySize` to your window size.
+- Set `io.DisplayFrameBufferSize` to your window pixel density (macOS/iOS only).
+- Update mouse cursor shape is supported.
+
+**In your `ImGui_ImplXXX_NewFrame()` function or event handlers:**
+- **Mouse Support**
+  - Use `io.AddMousePosEvent()`, `io.AddMouseButtonEvent()`, `io.AddMouseWheelEvent()` to pass mouse events.
+  - Use `io.AddMouseSourceEvent()` if you are able to distinguish Mouse from TouchScreen from Pen inputs. TouchScreen and Pen inputs requires different logic for some Dear ImGui features.
+  - Use `io.AddMouseViewportEvent()` to specify which viewport/OS window is being hovered by the mouse. Read instructions carefully as this is not as simple as it seems! (multi-viewports only)
+- **Keyboard Support**
+  - Use `io.AddKeyEvent()` to pass key events.
+  - Use `io.AddInputCharacter()` to pass text/character events.
+- **Gamepad Support**
+  - Use `io.AddKeyEvent()` and `io.AddKeyAnalogEvent()` to pass gamepad events, using `ImGuiKey_GamepadXXX` values.
+- **Miscellaneous**
+  - Clipboard Support: setup `Platform_GetClipboardTextFn()`, `Platform_SetClipboardTextFn()` handlers in `ImGuiPlatformIO`.
+  - Open in Shell support: setup `Platform_OpenInShellFn()` handler in `ImGuiPlatformIO`.
+  - IME Support: setup `Platform_SetImeDataFn()` handler in `ImGuiPlatformIO`.
+  - Use `io.AddFocusEvent()` to notify when application window gets focused/unfocused.
+- **Multi-viewport Support**
+  - Update monitor list if supported.
+  - Setup all required handlers in `ImGuiPlatformIO` to create/destroy/move/resize/title/focus/etc. windows.
+
+### Rendering: Implementing your RenderDrawData function
+
+Note: set `ImGuiBackendFlags_RendererHasVtxOffset` to signify your backend can handle rendering with a vertex offset (`ImDrawCmd::VtxOffset` field).
+Otherwise, rendering will be limited to 64K vertices per window, which may be limiting for advanced plot.
+As an alternative, you may also use `#define ImDrawIdx unsigned int` in your `imconfig.h` file to support 32-bit indices.
+
+```cpp
+void MyImGuiBackend_RenderDrawData(ImDrawData* draw_data)
+{
+    // TODO: Update textures.
+    // - Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // - This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates.
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                MyImGuiBackend_UpdateTexture(tex);
+
+    // TODO: Setup render state:
+    // - Alpha-blending enabled
+    // - No backface culling
+    // - No depth testing, no depth writing
+    // - Scissor enabled
+    MyEngineSetupenderState();
+
+    // TODO: Setup texture sampling state
+    // - Sample with bilinear filtering (NOT point/nearest filtering).
+    // - Use 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines;' to allow point/nearest filtering.
+
+    // TODO: Setup viewport covering draw_data->DisplayPos to draw_data->DisplayPos + draw_data->DisplaySize
+
+    // TODO: Setup orthographic projection matrix cover draw_data->DisplayPos to draw_data->DisplayPos + draw_data->DisplaySize
+
+    // TODO: Setup shader: vertex { float2 pos, float2 uv, u32 color }, fragment shader sample color from 1 texture, multiply by vertex color.
+
+    // Render command lists
+    ImVec2 clip_off = draw_data->DisplayPos;
+    ImVec2 clip_scale = draw_data->FramebufferScale;
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;  // vertex buffer generated by Dear ImGui
+        const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;   // index buffer generated by Dear ImGui
+        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback)
+            {
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    MyEngineSetupenderState();
+                else
+                    pcmd->UserCallback(cmd_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                // - Clipping coordinates are provided in imgui coordinates space:
+                //   - For a given viewport, draw_data->DisplayPos == viewport->Pos and draw_data->DisplaySize == viewport->Size
+                //   - In a single viewport application, draw_data->DisplayPos == (0,0) and draw_data->DisplaySize == io.DisplaySize, but always use GetMainViewport()->Pos/Size instead of hardcoding those values.
+                //   - In the interest of supporting multi-viewport applications (see 'docking' branch on github),
+                //     always subtract draw_data->DisplayPos from clipping bounds to convert them to your viewport space.
+                // - Note that pcmd->ClipRect contains Min+Max bounds. Some graphics API may use Min+Max, other may use Min+Size (size being Max-Min)
+                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
+                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                // We are using scissoring to clip some objects. All low-level graphics API should support it.
+                // - If your engine doesn't support scissoring yet, you may ignore this at first. You will get some small glitches
+                //   (some elements visible outside their bounds) but you can fix that once everything else works!
+                MyEngineSetScissor(clip_min.x, clip_min.y, clip_max.x, clip_max.y);
+
+                // The texture for the draw call is specified by pcmd->GetTexID().
+                // The vast majority of draw calls will use the Dear ImGui texture atlas, which value you have set yourself during initialization.
+                MyEngineBindTexture((MyTexture*)pcmd->GetTexID());
+
+                // Render 'pcmd->ElemCount/3' indexed triangles.
+                // By default the indices ImDrawIdx are 16-bit, you can change them to 32-bit in imconfig.h if your engine doesn't support 16-bit indices.
+                MyEngineDrawIndexedTriangles(pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer + pcmd->IdxOffset, vtx_buffer, pcmd->VtxOffset);
+            }
+        }
+    }
+}
+```
+
+### Rendering: Adding support for `ImGuiBackendFlags_RendererHasTextures` (1.92+)
+
+Version [1.92.0](https://github.com/ocornut/imgui/releases/tag/v1.92.0) (June 2025), added texture support in Rendering Backends, which is the backbone for supporting dynamic font scaling among other things.
+
+**In order to move forward and take advantage of all new features, support for `ImGuiBackendFlags_RendererHasTextures` will likely be REQUIRED for all backends before June 2026.**
+
+`ImFontAtlas` functions such as `Build()`, `GetTexDataAsRGBA32()`, `GetTexDataAsAlpha8()`, `SetTexID()`, `IsBuilt()` were obsoleted in favor if iterating a `Textures[]` array and updating their state when requested by Dear ImGui.
+
+**TD;DR: List of commits which added support for `ImGuiBackendFlags_RendererHasTextures` in standard backends:**
+
+- Allegro5: [ee8941e](https://github.com/ocornut/imgui/commit/ee8941e) (+35 lines)
+- DirectX9: [75efba7](https://github.com/ocornut/imgui/commit/75efba7) (+48 lines)
+- DirectX10: [2d2b1bc](https://github.com/ocornut/imgui/commit/2d2b1bc) (+40 lines)
+- DirectX11: [372fd27](https://github.com/ocornut/imgui/commit/372fd27) (+40 lines)
+- DirectX12: [eefe5d5](https://github.com/ocornut/imgui/commit/eefe5d5) (+87 lines)
+- Metal: [26c017d](https://github.com/ocornut/imgui/commit/26c017d) (+55 lines)
+- OpenGL Legacy: [0430c55](https://github.com/ocornut/imgui/commit/0430c55) (+25 lines)
+- OpenGL3/WebGL/ES: [dbb91a5](https://github.com/ocornut/imgui/commit/dbb91a5) (+47 lines)
+- SDL_Renderer2: [9fa65cd](https://github.com/ocornut/imgui/commit/9fa65cd) (+20 lines)
+- SDL_Renderer3: [e538883](https://github.com/ocornut/imgui/commit/e538883) (+19 lines)
+- SDL_GPU: [16fe666](https://github.com/ocornut/imgui/commit/16fe666) (+41 lines)
+- Vulkan: [abe294b](https://github.com/ocornut/imgui/commit/abe294b) (+33 lines)
+- WGPU: [571dae9](https://github.com/ocornut/imgui/commit/571dae9) (+30 lines)
+
+**Instructions:**
+
+- Set `ImGuiBackendFlags_RendererHasTextures` to signify your backend can handle the feature.
+- During rendering, e.g. in your RenderDrawData function, iterate `ImDrawData->Textures` array and process all textures.
+- During shutdown, iterate the `ImGui::GetPlatformIO().Textures` and destroy all textures.
+- (Both arrays are `ImVector<ImTextureData*>`. They are only in different location because: to allow advanced users to perform multi-threaded rendering, we store a pointer to the texture list in ImDrawData, with the aim that multi-threaded rendering users replace it with their own pointer.)
+
+Pseudo-code for processing a texture:
+```cpp
+if (draw_data->Textures != nullptr)
+    for (ImTextureData* tex : *draw_data->Textures)
+        if (tex->Status != ImTextureStatus_OK)
+            MyImGuiBackend_UpdateTexture(tex);
+```
+```cpp
+void MyImGuiBackend_UpdateTexture(ImTextureData* tex)
+{
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create texture based on tex->Width, tex->Height.
+        // - Most backends only support tex->Format == ImTextureFormat_RGBA32.
+        // - Backends for particularly memory constrainted platforms may support tex->Format == ImTextureFormat_Alpha8.
+
+        // Upload all texture pixels
+        // - Read from our CPU-side copy of the texture and copy to your graphics API.
+        // - Use tex->Width, tex->Height, tex->GetPixels(), tex->GetPixelsAt(), tex->GetPitch() as needed.
+
+        // Store your data, and acknowledge creation.
+        tex->SetTexID(xxxx); // Specify backend-specific ImTextureID identifier which will be stored in ImDrawCmd.
+        tex->SetStatus(ImTextureStatus_OK);
+        tex->BackendUserData = xxxx; // Store more backend data if needed (most backend allocate a small texture to store data in there)
+    }
+    if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Upload a rectangle of pixels to the existing texture
+        // - We only ever write to textures regions which have never been used before!
+        // - Use tex->TexID or tex->BackendUserData to retrieve your stored data.
+        // - Use tex->UpdateRect.x/y, tex->UpdateRect.w/h to obtain the block position and size.
+        //   - Use tex->Updates[] to obtain individual sub-regions within tex->UpdateRect. Not recommended.
+        // - Read from our CPU-side copy of the texture and copy to your graphics API.
+        // - Use tex->Width, tex->Height, tex->GetPixels(), tex->GetPixelsAt(), tex->GetPitch() as needed.
+
+        // Acknowledge update
+        tex->SetStatus(ImTextureStatus_OK);
+    }
+    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
+    {
+        // If you use staged rendering and have in-flight renders, changed tex->UnusedFrames > 0 check to higher count as needed e.g. > 2
+
+        // Destroy texture
+        // - Use tex->TexID or tex->BackendUserData to retrieve your stored data.
+        // - Destroy texture in your graphics API.
+
+        // Acknowledge destruction
+        tex->SetTexID(ImTextureID_Invalid);
+        tex->SetStatus(ImTextureStatus_Destroyed);
+    }
+}
+```
+Refer to "List of commits which added support for `ImGuiBackendFlags_RendererHasTextures` in standard backends" above for concrete examples of this.

lib/imgui/docs/CONTRIBUTING.md

@@ -0,0 +1,81 @@
+# Contributing Guidelines
+
+## Index
+
+- [Getting Started & General Advice](#getting-started--general-advice)
+- [Issues vs Discussions](#issues-vs-discussions)
+- [How to open an Issue](#how-to-open-an-issue)
+- [How to open a Pull Request](#how-to-open-a-pull-request)
+- [Copyright / Contributor License Agreement](#copyright--contributor-license-agreement)
+
+## Getting Started & General Advice
+
+- Article: [How To Ask Good Questions](https://bit.ly/3nwRnx1).
+- Please browse the [Wiki](https://github.com/ocornut/imgui/wiki) to find code snippets, links and other resources (e.g. [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started), [Useful extensions](https://github.com/ocornut/imgui/wiki/Useful-Extensions)).
+- Please read [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) if your question relates to setting up Dear ImGui.
+- Please read [docs/FAQ.md](https://github.com/ocornut/imgui/blob/master/docs/FAQ.md).
+- Please read [docs/FONTS.md](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md) if your question relates to fonts or text.
+- Please run `ImGui::ShowDemoWindow()` to explore the demo and its sources.
+- Please use the search function of your IDE to search for symbols and comments related to your situation.
+- Please use the search function of GitHub to look for similar topics (always include 'Closed' issues/pr in your search).
+- You may [browse issues by Labels](https://github.com/ocornut/imgui/labels).
+- Please use a web search engine to look for similar issues.
+- If you get a crash or assert, use a debugger to locate the line triggering it and read the comments around.
+- Please don't be a [Help Vampire](https://slash7.com/2006/12/22/vampires/).
+
+## 'Issues' vs 'Discussions'
+
+We are happy to use 'Issues' for many type of open-ended questions. We are encouraging 'Issues' becoming an enormous, centralized and cross-referenced database of Dear ImGui contents.
+
+Only if you:
+- Cannot BUILD or LINK examples.
+- Cannot BUILD, or LINK, or RUN Dear ImGui in your application or custom engine.
+- Cannot LOAD a font.
+
+Then please [use the Discussions forums](https://github.com/ocornut/imgui/discussions) instead of opening an issue.
+
+If Dear ImGui is successfully showing in your app and you have used Dear ImGui before, you can open an Issue. Any form of discussions is welcome as a new issue.
+
+## How to open an issue
+
+You may use the Issue Tracker to submit bug reports, feature requests or suggestions. You may ask for help or advice as well. But **PLEASE CAREFULLY READ THIS WALL OF TEXT. ISSUES IGNORING THOSE GUIDELINES MAY BE CLOSED. USERS IGNORING THOSE GUIDELINES MIGHT BE BLOCKED.**
+
+Please do your best to clarify your request. The amount of incomplete or ambiguous requests due to people not following those guidelines is often overwhelming. Issues created without the requested information may be closed prematurely. Exceptionally entitled, impolite, or lazy requests may lead to bans.
+
+**PLEASE UNDERSTAND THAT OPEN-SOURCE SOFTWARE LIVES OR DIES BY THE AMOUNT OF ENERGY MAINTAINERS CAN SPARE. WE HAVE LOTS OF STUFF TO DO. THIS IS AN ATTENTION ECONOMY AND MANY LAZY OR MINOR ISSUES ARE HOGGING OUR ATTENTION AND DRAINING ENERGY, TAKING US AWAY FROM MORE IMPORTANT WORK.**
+
+Steps:
+
+- Article: [How To Ask Good Questions](https://bit.ly/3nwRnx1).
+- **PLEASE DO FILL THE REQUESTED NEW ISSUE TEMPLATE.** Including Dear ImGui version number, branch name, platform/renderer back-ends (imgui_impl_XXX files), operating system.
+- **Try to be explicit with your GOALS, your EXPECTATIONS and what you have tried**.  Be mindful of [The XY Problem](http://xyproblem.info/). What you have in mind or in your code is not obvious to other people. People frequently discuss problems and suggest incorrect solutions without first clarifying their goals. When requesting a new feature, please describe the usage context (how you intend to use it, why you need it, etc.). If you tried something and it failed, show us what you tried.
+- **Please INCLUDE CODE. Provide a Minimal, Complete, and Verifiable Example ([MCVE](https://stackoverflow.com/help/mcve)) to demonstrate your problem**. An ideal submission includes a small piece of code that anyone can paste into one of the examples applications (examples/../main.cpp) or demo (imgui_demo.cpp) to understand and reproduce it. **Narrowing your problem to its shortest and purest form is the easiest way to understand it, explain it and fix it**. Please test your shortened code to ensure it exhibits the problem. **Often while creating the MCVE you will solve the problem!** Many questions that are missing a standalone verifiable example are missing the actual cause of their issue in the description, which ends up wasting everyone's time.
+- **Attach screenshots (or GIF/video) to clarify the context**. They often convey useful information that is omitted by the description. You can drag pictures/files in the message edit box. Avoid using 3rd party image hosting services, prefer the long-term longevity of GitHub attachments (you can drag pictures into your post). On Windows, you can use [ScreenToGif](https://www.screentogif.com/) to easily capture .gif files.
+- **If you are discussing an assert or a crash, please provide a debugger callstack**. Never state "it crashes" without additional information. If you don't know how to use a debugger and retrieve a callstack, learning about it will be useful.
+- **Please make sure that your project has asserts enabled.** Calls to IM_ASSERT() are scattered in the code to help catch common issues. When an assert is triggered read the comments around it. By default IM_ASSERT() calls the standard assert() function. To verify that your asserts are enabled, add the line `IM_ASSERT(false);` in your main() function. Your application should display an error message and abort. If your application doesn't report an error, your asserts are disabled.
+- Please state if you have made substantial modifications to your copy of Dear ImGui or the back-end.
+- If you are not calling Dear ImGui directly from C++, please provide information about your Language and the wrapper/binding you are using.
+- Be mindful that messages are being sent to the mailbox of "Watching" users. Try to proofread your messages before sending them. Edits are not seen by those users unless they browse the site.
+
+**Some unfortunate words of warning**
+- If you are involved in cheating schemes (e.g. DLL injection) for competitive online multiplayer games, please don't post here. We won't answer and you will be blocked. It doesn't matter if your question relates to said project. We've had too many of you and need to protect our time and sanity.
+- Due to frequent abuse of this service from the aforementioned users, if your GitHub account is anonymous and was created five minutes ago please understand that your post will receive more scrutiny and incomplete questions will be harshly dismissed.
+
+If you have been using Dear ImGui for a while or have been using C/C++ for several years or have demonstrated good behavior here, it is ok to not fulfill every item to the letter. Those are guidelines and experienced users or members of the community will know which information is useful in a given context.
+
+## How to open a Pull Request
+
+- **Please understand that by submitting a PR you are also submitting a request for the maintainer to review your code and then take over its maintenance.** PR should be crafted both in the interest of the end-users and also to ease the maintainer into understanding and accepting it.
+- Many PRs are useful to demonstrate a need and a possible solution but aren't adequate for merging (causing other issues, not seeing other aspects of the big picture, etc.). In doubt, don't hesitate to push a PR because that is always the first step toward pointing toward a problem, and finding the mergeable solution! Even if a PR stays unmerged for a long time, its presence can be useful for other users and helps toward finding a general solution.
+- **When adding a feature,** please describe the usage context (how you intend to use it, why you need it, etc.). Be mindful of [The XY Problem](http://xyproblem.info/).
+- **When fixing a warning or compilation problem,** please post the compiler log and specify the compiler version and platform you are using.
+- **Attach screenshots (or GIF/video) to clarify the context and demonstrate the feature at a glance.** You can drag pictures/files in the message edit box. Prefer the long-term longevity of GitHub attachments over 3rd party hosting (you can drag pictures into your post).
+- **Make sure your code follows the coding style already used in the codebase:** 4 spaces indentations (no tabs), `local_variable`, `FunctionName()`, `MemberName`, `// Text Comment`, `//CodeComment();`, C-style casts, etc.. We don't use modern C++ idioms and tend to use only a minimum of C++11 features. The applications under examples/ are generally less consistent because they sometimes try to mimic the coding style often adopted by a certain ecosystem (e.g. DirectX-related code tend to use the style of their sample).
+- **Make sure you create a branch dedicated to the pull request**. In Git, 1 PR is associated to 1 branch. If you keep pushing to the same branch after you submitted the PR, your new commits will appear in the PR (we can still cherry-pick individual commits).
+
+## Copyright / Contributor License Agreement
+
+Any code you submit will become part of the repository and be distributed under the [Dear ImGui license](https://github.com/ocornut/imgui/blob/master/LICENSE.txt). By submitting code to the project you agree that the code is your work and that you can give it to the project.
+
+You also agree by submitting your code that you grant all transferable rights to the code to the project maintainer, including for example re-licensing the code, modifying the code, and distributing it in source or binary forms. Specifically, this includes a requirement that you assign copyright to the project maintainer. For this reason, do not modify any copyright statements in files in any PRs.
+

lib/imgui/docs/EXAMPLES.md

@@ -0,0 +1,256 @@
+_(You may browse this at https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md or view this file with any Markdown viewer)_
+
+## Dear ImGui: Examples
+
+**The [examples/](https://github.com/ocornut/imgui/blob/master/examples) folder example applications (standalone, ready-to-build) for variety of
+platforms and graphics APIs.** They all use standard backends from the [backends/](https://github.com/ocornut/imgui/blob/master/backends) folder (see [docs/BACKENDS.md](https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md)).
+
+The purpose of Examples is to showcase integration with backends, let you try Dear ImGui, and guide you toward
+integrating Dear ImGui in your own application/game/engine.
+**Once Dear ImGui is setup and running, run and refer to `ImGui::ShowDemoWindow()` in imgui_demo.cpp for usage of the end-user API.**
+
+You can find Windows binaries for some of those example applications at:
+  https://www.dearimgui.com/binaries
+
+
+### Getting Started
+
+Integration in a typical existing application, should take <20 lines when using standard backends.
+
+```cpp
+At initialization:
+  call ImGui::CreateContext()
+  call ImGui_ImplXXXX_Init() for each backend.
+
+At the beginning of your frame:
+  call ImGui_ImplXXXX_NewFrame() for each backend.
+  call ImGui::NewFrame()
+
+At the end of your frame:
+  call ImGui::Render()
+  call ImGui_ImplXXXX_RenderDrawData() for your Renderer backend.
+
+At shutdown:
+  call ImGui_ImplXXXX_Shutdown() for each backend.
+  call ImGui::DestroyContext()
+```
+
+Main resource:
+- Read **[Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) wiki guide** for detailed examples of how to integrate Dear ImGui in an existing application.
+
+Additional resources:
+- Read FAQ at https://www.dearimgui.com/faq
+- Read 'PROGRAMMER GUIDE' section in imgui.cpp.
+- Read the comments and instruction at the top of each file.
+
+If you are using any of the backends provided here, you can add the backends/imgui_impl_xxxx(.cpp,.h)
+files to your project and use as-in. Each imgui_impl_xxxx.cpp file comes with its own individual
+Changelog, so if you want to update them later it will be easier to catch up with what changed.
+
+
+### Examples Applications
+
+[example_allegro5/](https://github.com/ocornut/imgui/blob/master/examples/example_allegro5/) <BR>
+Allegro 5 example. <BR>
+= main.cpp + imgui_impl_allegro5.cpp
+
+[example_android_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_android_opengl3/) <BR>
+Android + OpenGL3 (ES) example. <BR>
+= main.cpp + imgui_impl_android.cpp + imgui_impl_opengl3.cpp
+
+[example_apple_metal/](https://github.com/ocornut/imgui/tree/master/examples/example_apple_metal/) <BR>
+OSX & iOS + Metal example. <BR>
+= main.m + imgui_impl_osx.mm + imgui_impl_metal.mm <BR>
+It is based on the "cross-platform" game template provided with Xcode as of Xcode 9.
+(NB: imgui_impl_osx.mm is currently not as feature complete as other platforms backends.
+You may prefer to use the GLFW Or SDL backends, which will also support Windows and Linux.)
+
+[example_apple_opengl2/](https://github.com/ocornut/imgui/blob/master/examples/example_apple_opengl2/) <BR>
+OSX + OpenGL2 example. <BR>
+= main.mm + imgui_impl_osx.mm + imgui_impl_opengl2.cpp <BR>
+(NB: imgui_impl_osx.mm is currently not as feature complete as other platforms backends.
+ You may prefer to use the GLFW Or SDL backends, which will also support Windows and Linux.)
+
+[example_glfw_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_glfw_wgpu/) <BR>
+GLFW + WebGPU example. Supports Emscripten (web), Dawn (native), WGPU (native). <BR>
+= main.cpp + imgui_impl_glfw.cpp + imgui_impl_wgpu.cpp
+Note that the 'example_glfw_opengl3' and 'example_sdl2_opengl3' examples also supports Emscripten!
+
+[example_glfw_metal/](https://github.com/ocornut/imgui/blob/master/examples/example_glfw_metal/) <BR>
+GLFW (Mac) + Metal example. <BR>
+= main.mm + imgui_impl_glfw.cpp + imgui_impl_metal.mm
+
+[example_glfw_opengl2/](https://github.com/ocornut/imgui/blob/master/examples/example_glfw_opengl2/) <BR>
+GLFW + OpenGL2 example (legacy, fixed pipeline). <BR>
+= main.cpp + imgui_impl_glfw.cpp + imgui_impl_opengl2.cpp <BR>
+**DO NOT USE THIS IF YOUR CODE/ENGINE IS USING MODERN GL or WEBGL (SHADERS, VBO, VAO, etc.)** <BR>
+This code is mostly provided as a reference to learn about Dear ImGui integration, because it is shorter.
+If your code is using GL3+ context or any semi modern GL calls, using this renderer is likely to
+make things more complicated, will require your code to reset many GL attributes to their initial
+state, and might confuse your GPU driver. One star, not recommended.
+
+[example_glfw_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_glfw_opengl3/) <BR>
+GLFW (Win32, Mac, Linux) + OpenGL3+/ES2/ES3 example (modern, programmable pipeline). <BR>
+= main.cpp + imgui_impl_glfw.cpp + imgui_impl_opengl3.cpp <BR>
+This uses more modern GL calls and custom shaders.<BR>
+This support building with Emscripten and targeting WebGL.<BR>
+Prefer using that if you are using modern GL or WebGL in your application.
+
+[example_glfw_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_glfw_vulkan/) <BR>
+GLFW (Win32, Mac, Linux) + Vulkan example. <BR>
+= main.cpp + imgui_impl_glfw.cpp + imgui_impl_vulkan.cpp <BR>
+This is quite long and tedious, because: Vulkan.
+For this example, the main.cpp file exceptionally use helpers function from imgui_impl_vulkan.h/cpp.
+
+[example_glut_opengl2/](https://github.com/ocornut/imgui/blob/master/examples/example_glut_opengl2/) <BR>
+GLUT (e.g., FreeGLUT on Linux/Windows, GLUT framework on OSX) + OpenGL2 example. <BR>
+= main.cpp + imgui_impl_glut.cpp + imgui_impl_opengl2.cpp <BR>
+Note that GLUT/FreeGLUT is largely obsolete software, prefer using GLFW or SDL.
+
+[example_null/](https://github.com/ocornut/imgui/blob/master/examples/example_null/) <BR>
+Null example, compile and link imgui, create context, run headless with no inputs and no graphics output. <BR>
+= main.cpp + imgui_impl_null.cpp<BR>
+This is used to quickly test compilation of core imgui files in as many setups as possible.
+Because this application doesn't create a window nor a graphic context, there's no graphics output.
+Please note that imgui_impl_null itself is a rather empty backend. We provide it for consistency but
+it is similarly easy to create a skeleton application without the null backend.
+
+[example_sdl2_directx11/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_directx11/) <BR>
+SDL2 + DirectX11 example, Windows only. <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_dx11.cpp <BR>
+This to demonstrate usage of DirectX with SDL2.
+
+[example_sdl2_metal/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_metal/) <BR>
+SDL2 + Metal example, Mac only. <BR>
+= main.mm + imgui_impl_sdl2.cpp + imgui_impl_metal.mm
+
+[example_sdl2_opengl2/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_opengl2/) <BR>
+SDL2 (Win32, Mac, Linux etc.) + OpenGL example (legacy, fixed pipeline). <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_opengl2.cpp <BR>
+**DO NOT USE OPENGL2 CODE IF YOUR CODE/ENGINE IS USING GL OR WEBGL (SHADERS, VBO, VAO, etc.)** <BR>
+This code is mostly provided as a reference to learn about Dear ImGui integration, because it is shorter.
+If your code is using GL3+ context or any semi modern GL calls, using this renderer is likely to
+make things more complicated, will require your code to reset many GL attributes to their initial
+state, and might confuse your GPU driver. One star, not recommended.
+
+[example_sdl2_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_opengl3/) <BR>
+SDL2 (Win32, Mac, Linux, etc.) + OpenGL3+/ES2/ES3 example. <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_opengl3.cpp <BR>
+This uses more modern GL calls and custom shaders. <BR>
+This support building with Emscripten and targeting WebGL.<BR>
+Prefer using that if you are using modern GL or WebGL in your application.
+
+[example_sdl2_sdlrenderer2/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_sdlrenderer2/) <BR>
+SDL2 (Win32, Mac, Linux, etc.) + SDL_Renderer for SDL2 example.<BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_sdlrenderer2.cpp <BR>
+This requires SDL 2.0.18+ (released November 2021) <BR>
+
+[example_sdl2_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_vulkan/) <BR>
+SDL2 (Win32, Mac, Linux, etc.) + Vulkan example. <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_vulkan.cpp <BR>
+This is quite long and tedious, because: Vulkan. <BR>
+For this example, the main.cpp file exceptionally use helpers function from imgui_impl_vulkan.h/cpp.
+
+[example_sdl2_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_wgpu/) <BR>
+SDL2 + WebGPU example. Supports Emscripten (web), Dawn (native), WGPU (native). <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_wgpu.cpp
+(note that the 'example_sdl2_opengl3' example also supports Emscripten!)
+
+[example_sdl3_directx11/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_directx11/) <BR>
+SDL3 + DirectX11 examples, Windows only. <BR>
+= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_dx11.cpp <BR>
+
+[example_sdl3_metal/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_metal/) <BR>
+SDL3 + Metal example, Mac only. <BR>
+= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_metal.mm <BR>
+
+[example_sdl3_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_opengl3/) <BR>
+SDL3 (Win32, Mac, Linux, etc.) + OpenGL3+/ES2/ES3 example. <BR>
+= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_opengl3.cpp <BR>
+This uses more modern GL calls and custom shaders. <BR>
+This support building with Emscripten and targeting WebGL.<BR>
+
+[example_sdl3_sdlgpu3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_sdlgpu3/) <BR>
+SDL3 (Win32, Mac, Linux, etc.) + SDL_GPU for SDL3 example.<BR>
+= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_sdlrenderer3.cpp <BR>
+
+[example_sdl3_sdlrenderer3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_sdlrenderer3/) <BR>
+SDL3 (Win32, Mac, Linux, etc.) + SDL_Renderer for SDL3 example.<BR>
+= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_sdlrenderer3.cpp <BR>
+
+[example_sdl3_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_vulkan/) <BR>
+SDL3 (Win32, Mac, Linux, etc.) + Vulkan example. <BR>
+= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_vulkan.cpp <BR>
+This is quite long and tedious, because: Vulkan. <BR>
+For this example, the main.cpp file exceptionally use helpers function from imgui_impl_vulkan.h/cpp.
+
+[example_sdl3_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_wgpu/) <BR>
+SDL3 + WebGPU example. Supports Emscripten (web), Dawn (native), WGPU (native). <BR>
+= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_wgpu.cpp
+(note that the 'example_sdl3_opengl3' example also supports Emscripten!)
+
+[example_win32_directx9/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_directx9/) <BR>
+DirectX9 example, Windows only. <BR>
+= main.cpp + imgui_impl_win32.cpp + imgui_impl_dx9.cpp
+
+[example_win32_directx10/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_directx10/) <BR>
+DirectX10 example, Windows only. <BR>
+= main.cpp + imgui_impl_win32.cpp + imgui_impl_dx10.cpp
+
+[example_win32_directx11/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_directx11/) <BR>
+DirectX11 example, Windows only. <BR>
+= main.cpp + imgui_impl_win32.cpp + imgui_impl_dx11.cpp
+
+[example_win32_directx12/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_directx12/) <BR>
+DirectX12 example, Windows only. <BR>
+= main.cpp + imgui_impl_win32.cpp + imgui_impl_dx12.cpp <BR>
+This is quite long and tedious, because: DirectX12.
+
+[example_win32_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_opengl3/) <BR>
+Raw Windows + OpenGL3 example (modern, programmable pipeline) <BR>
+= main.cpp + imgui_impl_win32.cpp + imgui_impl_opengl3.cpp <BR>
+
+[example_win32_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_vulkan/) <BR>
+Raw Windows + Vulkan example <BR>
+= main.cpp + imgui_impl_win32.cpp + imgui_impl_vulkan.cpp <BR>
+
+
+### Miscellaneous
+
+**Building**
+
+Unfortunately, nowadays it is still tedious to create and maintain portable build files using external
+libraries (the kind we're using here to create a window and render 3D triangles) without relying on
+third party software and build systems. For most examples here we choose to provide:
+ - Makefiles for Linux/OSX
+ - Batch files for Visual Studio 2008+
+ - A .sln project file for Visual Studio 2012+
+ - Xcode project files for the Apple examples
+Please let us know if they don't work with your setup!
+You can probably just import the imgui_impl_xxx.cpp/.h files into your own codebase or compile those
+directly with a command-line compiler.
+
+If you are interested in using Cmake to build and links examples, see:
+  https://github.com/ocornut/imgui/pull/1713 and https://github.com/ocornut/imgui/pull/3027
+
+**About mouse cursor latency**
+
+Dear ImGui does not introduce significant extra lag for most behaviors,
+e.g. the last value passed to 'io.AddMousePosEvent()' before NewFrame() will result in windows being moved
+to the right spot at the time of EndFrame()/Render(). At 60 FPS your experience should be pleasant.
+
+However, consider that OS mouse cursors are typically rendered through a very specific hardware-accelerated
+path, which makes them feel smoother than the majority of content rendered via regular graphics API (including,
+but not limited to Dear ImGui windows). Because UI rendering and interaction happens on the same plane
+as the mouse, that disconnect may be jarring to particularly sensitive users.
+You may experiment with enabling the io.MouseDrawCursor flag to request Dear ImGui to draw a mouse cursor
+using the regular graphics API, to help you visualize the difference between a "hardware" cursor and a
+regularly rendered software cursor.
+However, rendering a mouse cursor at 60 FPS will feel sluggish, so you likely won't want to enable that at
+all times. It might be beneficial for the user experience to switch to a software rendered cursor _only_
+when an interactive drag is in progress.
+
+Note that some setup configurations or GPU drivers may introduce additional display lag depending on their settings.
+If you notice that dragging windows is laggy and you are not sure what the cause is: try drawing a simple
+2D shape directly under the mouse cursor to help identify the issue!
+