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2
.github/FUNDING.yml vendored
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@ -1 +1 @@
custom: ['https://github.com/ocornut/imgui/wiki/Sponsors']
custom: ['https://github.com/ocornut/imgui/wiki/Funding']

1
.github/ISSUE_TEMPLATE/config.yml vendored Normal file
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@ -0,0 +1 @@
blank_issues_enabled: false

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.github/ISSUE_TEMPLATE/issue_template.yml vendored Normal file
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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 or LOADING FONTS, 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 and 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.
- 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!

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.github/issue_template.md vendored
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@ -1,46 +0,0 @@
(Click "Preview" above ^ to turn URL into clickable links)
1. FOR FIRST-TIME USERS ISSUES COMPILING/LINKING/RUNNING or LOADING FONTS, please use [GitHub Discussions](https://github.com/ocornut/imgui/discussions).
2. PLEASE CAREFULLY READ: [FAQ](https://github.com/ocornut/imgui/blob/master/docs/FAQ.md)
3. PLEASE CAREFULLY READ: [Contributing Guidelines](https://github.com/ocornut/imgui/blob/master/docs/CONTRIBUTING.md)
4. PLEASE MAKE SURE that you have: read the FAQ; explored the contents of `ShowDemoWindow()` including the Examples menu; searched among Issues; used your IDE to search for keywords in all sources and text files; and read the links above.
5. 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.
6. Delete points 1-6 and PLEASE FILL THE TEMPLATE BELOW before submitting your issue.
Thank you!
----
_(you may also go to Demo>About Window, and click "Config/Build Information" to obtain a bunch of detailed information that you can paste here)_
**Version/Branch of Dear ImGui:**
Version: XXX
Branch: XXX _(master/viewport/docking/etc.)_
**Back-end/Renderer/Compiler/OS**
Back-ends: imgui_impl_XXX.cpp + imgui_impl_XXX.cpp _(or specify if using a custom engine/back-end)_
Compiler: XXX _(if the question is related to building or platform specific features)_
Operating System: XXX
**My Issue/Question:**
XXX _(please provide as much context as possible)_
**Screenshots/Video**
XXX _(you can drag files here)_
**Standalone, minimal, complete and verifiable example:** _(see https://github.com/ocornut/imgui/issues/2261)_
```
// Here's some code anyone can copy and paste to reproduce your issue
ImGui::Begin("Example Bug");
MoreCodeToExplainMyIssue();
ImGui::End();
```

86
.github/workflows/build.yml vendored
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@ -8,6 +8,7 @@ on:
# "scheduled" workflow, while maintaining ability to perform local CI builds.
workflows:
- scheduled
- manual
branches:
- master
- docking
@ -21,7 +22,7 @@ jobs:
VS_PATH: C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\
MSBUILD_PATH: C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\Bin\
steps:
- uses: actions/checkout@v3
- uses: actions/checkout@v4
- name: Install Dependencies
shell: powershell
@ -123,6 +124,11 @@ jobs:
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'
@ -168,6 +174,11 @@ jobs:
shell: cmd
run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
- name: Build x64 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 x64 example_sdl2_vulkan
shell: cmd
run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
@ -207,9 +218,9 @@ jobs:
run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx12/example_win32_directx12.vcxproj /p:Platform=x64 /p:Configuration=Release'
Linux:
runs-on: ubuntu-22.04
runs-on: ubuntu-24.04
steps:
- uses: actions/checkout@v3
- uses: actions/checkout@v4
- name: Install Dependencies
run: |
@ -313,6 +324,18 @@ jobs:
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'
@ -370,6 +393,18 @@ jobs:
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'
@ -402,7 +437,7 @@ jobs:
MacOS:
runs-on: macos-latest
steps:
- uses: actions/checkout@v3
- uses: actions/checkout@v4
- name: Install Dependencies
run: |
@ -422,6 +457,17 @@ jobs:
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'
@ -462,7 +508,7 @@ jobs:
iOS:
runs-on: macos-latest
steps:
- uses: actions/checkout@v3
- uses: actions/checkout@v4
- name: Build example_apple_metal
run: |
@ -470,17 +516,18 @@ jobs:
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
Emscripten:
runs-on: ubuntu-22.04
runs-on: ubuntu-24.04
steps:
- uses: actions/checkout@v3
- uses: actions/checkout@v4
- 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 3.1.37
emsdk-master/emsdk activate 3.1.37
emsdk-master/emsdk install latest
emsdk-master/emsdk activate latest
sudo apt-get install build-essential
- name: Build example_sdl2_opengl3 with Emscripten
run: |
@ -489,17 +536,30 @@ jobs:
popd
make -C examples/example_sdl2_opengl3 -f Makefile.emscripten
- name: Build example_emscripten_wgpu
# 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_emscripten_wgpu
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
Android:
runs-on: ubuntu-22.04
runs-on: ubuntu-24.04
steps:
- uses: actions/checkout@v3
- uses: actions/checkout@v4
- name: Build example_android_opengl3
run: |

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.github/workflows/manual.yml vendored Normal file
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@ -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

2
.github/workflows/static-analysis.yml vendored
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@ -12,7 +12,7 @@ jobs:
PVS-Studio:
runs-on: ubuntu-22.04
steps:
- uses: actions/checkout@v3
- uses: actions/checkout@v4
with:
fetch-depth: 1

7
.gitignore vendored
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@ -3,12 +3,12 @@
## Dear ImGui artifacts
imgui.ini
imgui*.ini
## General build artifacts
*.o
*.obj
*.exe
examples/build/*
examples/*/Debug/*
examples/*/Release/*
examples/*/x64/*
@ -30,7 +30,7 @@ ipch
JSON/
## Commonly used CMake directories
/build*/
build*/
## Xcode artifacts
project.xcworkspace
@ -41,8 +41,9 @@ 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_emscripten_wgpu/web/*
## JetBrains IDE artifacts
.idea

2
LICENSE.txt
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@ -1,6 +1,6 @@
The MIT License (MIT)
Copyright (c) 2014-2023 Omar Cornut
Copyright (c) 2014-2024 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

47
backends/imgui_impl_allegro5.cpp
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@ -12,11 +12,17 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
// 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).
@ -24,7 +30,7 @@
// 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 the ImDrawCmd::IdxOffset field! This is an old bug but it never had an effect until some internal rendering changes in 1.86.
// 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)
@ -47,10 +53,11 @@
// 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
#include "imgui.h"
#include "imgui_impl_allegro5.h"
// Allegro
#include <allegro5/allegro.h>
@ -58,8 +65,8 @@
#ifdef _WIN32
#include <allegro5/allegro_windows.h>
#endif
#define ALLEGRO_HAS_CLIPBOARD (ALLEGRO_VERSION_INT >= ((5 << 24) | (1 << 16) | (12 << 8))) // Clipboard only supported from Allegro 5.1.12
#define ALLEGRO_HAS_DRAW_INDEXED_PRIM (ALLEGRO_VERSION_INT >= ((5 << 24) | (2 << 16) | ( 5 << 8))) // DX9 implementation of al_draw_indexed_prim() got fixed in Allegro 5.2.5
#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
@ -287,7 +294,7 @@ void ImGui_ImplAllegro5_InvalidateDeviceObjects()
}
#if ALLEGRO_HAS_CLIPBOARD
static const char* ImGui_ImplAllegro5_GetClipboardText(void*)
static const char* ImGui_ImplAllegro5_GetClipboardText(ImGuiContext*)
{
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
if (bd->ClipboardTextData)
@ -296,7 +303,7 @@ static const char* ImGui_ImplAllegro5_GetClipboardText(void*)
return bd->ClipboardTextData;
}
static void ImGui_ImplAllegro5_SetClipboardText(void*, const char* text)
static void ImGui_ImplAllegro5_SetClipboardText(ImGuiContext*, const char* text)
{
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
al_set_clipboard_text(bd->Display, text);
@ -419,6 +426,7 @@ static ImGuiKey ImGui_ImplAllegro5_KeyCodeToImGuiKey(int key_code)
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
@ -434,17 +442,17 @@ bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display)
// 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, IM_OFFSETOF(ImDrawVertAllegro, pos) },
{ ALLEGRO_PRIM_TEX_COORD, ALLEGRO_PRIM_FLOAT_2, IM_OFFSETOF(ImDrawVertAllegro, uv) },
{ ALLEGRO_PRIM_COLOR_ATTR, 0, IM_OFFSETOF(ImDrawVertAllegro, col) },
{ 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));
#if ALLEGRO_HAS_CLIPBOARD
io.SetClipboardTextFn = ImGui_ImplAllegro5_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplAllegro5_GetClipboardText;
io.ClipboardUserData = nullptr;
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_SetClipboardTextFn = ImGui_ImplAllegro5_SetClipboardText;
platform_io.Platform_GetClipboardTextFn = ImGui_ImplAllegro5_GetClipboardText;
#endif
return true;
@ -486,8 +494,9 @@ static void ImGui_ImplAllegro5_UpdateKeyModifiers()
// 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)
{
ImGuiIO& io = ImGui::GetIO();
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)
{
@ -582,7 +591,7 @@ static void ImGui_ImplAllegro5_UpdateMouseCursor()
void ImGui_ImplAllegro5_NewFrame()
{
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplAllegro5_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplAllegro5_Init()?");
if (!bd->Texture)
ImGui_ImplAllegro5_CreateDeviceObjects();
@ -603,3 +612,7 @@ void ImGui_ImplAllegro5_NewFrame()
// Setup mouse cursor shape
ImGui_ImplAllegro5_UpdateMouseCursor();
}
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

11
backends/imgui_impl_allegro5.h
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@ -12,15 +12,20 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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();
@ -30,3 +35,5 @@ IMGUI_IMPL_API bool ImGui_ImplAllegro5_ProcessEvent(ALLEGRO_EVENT* event);
// 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();
#endif // #ifndef IMGUI_DISABLE

36
backends/imgui_impl_android.cpp
View File

@ -15,8 +15,11 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
@ -27,6 +30,7 @@
// 2021-03-04: Initial version.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_android.h"
#include <time.h>
#include <android/native_window.h>
@ -152,7 +156,7 @@ static ImGuiKey ImGui_ImplAndroid_KeyCodeToImGuiKey(int32_t key_code)
}
}
int32_t ImGui_ImplAndroid_HandleInputEvent(AInputEvent* input_event)
int32_t ImGui_ImplAndroid_HandleInputEvent(const AInputEvent* input_event)
{
ImGuiIO& io = ImGui::GetIO();
int32_t event_type = AInputEvent_getType(input_event);
@ -179,7 +183,7 @@ int32_t ImGui_ImplAndroid_HandleInputEvent(AInputEvent* input_event)
case AKEY_EVENT_ACTION_UP:
{
ImGuiKey key = ImGui_ImplAndroid_KeyCodeToImGuiKey(event_key_code);
if (key != ImGuiKey_None && (event_action == AKEY_EVENT_ACTION_DOWN || event_action == AKEY_EVENT_ACTION_UP))
if (key != ImGuiKey_None)
{
io.AddKeyEvent(key, event_action == AKEY_EVENT_ACTION_DOWN);
io.SetKeyEventNativeData(key, event_key_code, event_scan_code);
@ -217,25 +221,27 @@ int32_t ImGui_ImplAndroid_HandleInputEvent(AInputEvent* input_event)
{
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).
if((AMotionEvent_getToolType(input_event, event_pointer_index) == AMOTION_EVENT_TOOL_TYPE_FINGER)
|| (AMotionEvent_getToolType(input_event, event_pointer_index) == AMOTION_EVENT_TOOL_TYPE_UNKNOWN))
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);
}
{
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));
@ -257,6 +263,8 @@ int32_t ImGui_ImplAndroid_HandleInputEvent(AInputEvent* input_event)
bool ImGui_ImplAndroid_Init(ANativeWindow* window)
{
IMGUI_CHECKVERSION();
g_Window = window;
g_Time = 0.0;
@ -294,3 +302,7 @@ void ImGui_ImplAndroid_NewFrame()
io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f / 60.0f);
g_Time = current_time;
}
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

14
backends/imgui_impl_android.h
View File

@ -15,15 +15,23 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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(AInputEvent* input_event);
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

21
backends/imgui_impl_dx10.cpp
View File

@ -7,8 +7,11 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
@ -30,6 +33,7 @@
// 2016-05-07: DirectX10: Disabling depth-write.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_dx10.h"
// DirectX
@ -410,9 +414,9 @@ bool ImGui_ImplDX10_CreateDeviceObjects()
// Create the input layout
D3D10_INPUT_ELEMENT_DESC local_layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, pos), D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, uv), D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)IM_OFFSETOF(ImDrawVert, col), D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "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)
{
@ -530,6 +534,7 @@ void ImGui_ImplDX10_InvalidateDeviceObjects()
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
@ -574,8 +579,12 @@ void ImGui_ImplDX10_Shutdown()
void ImGui_ImplDX10_NewFrame()
{
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplDX10_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX10_Init()?");
if (!bd->pFontSampler)
ImGui_ImplDX10_CreateDeviceObjects();
}
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

13
backends/imgui_impl_dx10.h
View File

@ -5,16 +5,21 @@
// [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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;
// 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();
@ -23,3 +28,5 @@ 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 void ImGui_ImplDX10_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplDX10_CreateDeviceObjects();
#endif // #ifndef IMGUI_DISABLE

21
backends/imgui_impl_dx11.cpp
View File

@ -7,8 +7,11 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
@ -31,6 +34,7 @@
// 2016-05-07: DirectX11: Disabling depth-write.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_dx11.h"
// DirectX
@ -422,9 +426,9 @@ bool ImGui_ImplDX11_CreateDeviceObjects()
// Create the input layout
D3D11_INPUT_ELEMENT_DESC local_layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, pos), D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, uv), D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)IM_OFFSETOF(ImDrawVert, col), D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "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)
{
@ -542,6 +546,7 @@ void ImGui_ImplDX11_InvalidateDeviceObjects()
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
@ -590,8 +595,12 @@ void ImGui_ImplDX11_Shutdown()
void ImGui_ImplDX11_NewFrame()
{
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplDX11_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX11_Init()?");
if (!bd->pFontSampler)
ImGui_ImplDX11_CreateDeviceObjects();
}
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

13
backends/imgui_impl_dx11.h
View File

@ -5,17 +5,22 @@
// [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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;
// 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();
@ -24,3 +29,5 @@ 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 void ImGui_ImplDX11_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplDX11_CreateDeviceObjects();
#endif // #ifndef IMGUI_DISABLE

21
backends/imgui_impl_dx12.cpp
View File

@ -15,8 +15,11 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
@ -39,6 +42,7 @@
// 2018-02-22: Merged into master with all Win32 code synchronized to other examples.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_dx12.h"
// DirectX
@ -600,9 +604,9 @@ bool ImGui_ImplDX12_CreateDeviceObjects()
// Create the input layout
static D3D12_INPUT_ELEMENT_DESC local_layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, pos), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, uv), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)IM_OFFSETOF(ImDrawVert, col), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)offsetof(ImDrawVert, pos), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)offsetof(ImDrawVert, uv), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)offsetof(ImDrawVert, col), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
};
psoDesc.InputLayout = { local_layout, 3 };
}
@ -710,6 +714,7 @@ bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FO
D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle)
{
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
// Setup backend capabilities flags
@ -758,8 +763,12 @@ void ImGui_ImplDX12_Shutdown()
void ImGui_ImplDX12_NewFrame()
{
ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplDX12_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX12_Init()?");
if (!bd->pPipelineState)
ImGui_ImplDX12_CreateDeviceObjects();
}
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

12
backends/imgui_impl_dx12.h
View File

@ -10,11 +10,15 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
struct ID3D12Device;
@ -23,6 +27,8 @@ struct ID3D12GraphicsCommandList;
struct D3D12_CPU_DESCRIPTOR_HANDLE;
struct D3D12_GPU_DESCRIPTOR_HANDLE;
// Follow "Getting Started" link and check examples/ folder to learn about using backends!
// cmd_list is the command list that the implementation will use to render imgui draw lists.
// Before calling the render function, caller must prepare cmd_list by resetting it and setting the appropriate
// render target and descriptor heap that contains font_srv_cpu_desc_handle/font_srv_gpu_desc_handle.
@ -36,3 +42,5 @@ IMGUI_IMPL_API void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API void ImGui_ImplDX12_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplDX12_CreateDeviceObjects();
#endif // #ifndef IMGUI_DISABLE

43
backends/imgui_impl_dx9.cpp
View File

@ -7,11 +7,15 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
// 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.
@ -32,6 +36,7 @@
// 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
@ -280,6 +285,7 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
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
@ -308,6 +314,24 @@ void ImGui_ImplDX9_Shutdown()
IM_DELETE(bd);
}
static bool ImGui_ImplDX9_CheckFormatSupport(IDirect3DDevice9* pDevice, D3DFORMAT format)
{
IDirect3D9* 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;
}
static bool ImGui_ImplDX9_CreateFontsTexture()
{
// Build texture atlas
@ -319,18 +343,21 @@ static bool ImGui_ImplDX9_CreateFontsTexture()
// Convert RGBA32 to BGRA32 (because RGBA32 is not well supported by DX9 devices)
#ifndef IMGUI_USE_BGRA_PACKED_COLOR
if (io.Fonts->TexPixelsUseColors)
const bool rgba_support = ImGui_ImplDX9_CheckFormatSupport(bd->pd3dDevice, D3DFMT_A8B8G8R8);
if (!rgba_support && io.Fonts->TexPixelsUseColors)
{
ImU32* dst_start = (ImU32*)ImGui::MemAlloc((size_t)width * height * bytes_per_pixel);
for (ImU32* src = (ImU32*)pixels, *dst = dst_start, *dst_end = dst_start + (size_t)width * height; dst < dst_end; src++, dst++)
*dst = IMGUI_COL_TO_DX9_ARGB(*src);
pixels = (unsigned char*)dst_start;
}
#else
const bool rgba_support = false;
#endif
// Upload texture to graphics system
bd->FontTexture = nullptr;
if (bd->pd3dDevice->CreateTexture(width, height, 1, D3DUSAGE_DYNAMIC, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &bd->FontTexture, nullptr) < 0)
if (bd->pd3dDevice->CreateTexture(width, height, 1, D3DUSAGE_DYNAMIC, rgba_support ? D3DFMT_A8B8G8R8 : D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &bd->FontTexture, nullptr) < 0)
return false;
D3DLOCKED_RECT tex_locked_rect;
if (bd->FontTexture->LockRect(0, &tex_locked_rect, nullptr, 0) != D3D_OK)
@ -343,7 +370,7 @@ static bool ImGui_ImplDX9_CreateFontsTexture()
io.Fonts->SetTexID((ImTextureID)bd->FontTexture);
#ifndef IMGUI_USE_BGRA_PACKED_COLOR
if (io.Fonts->TexPixelsUseColors)
if (!rgba_support && io.Fonts->TexPixelsUseColors)
ImGui::MemFree(pixels);
#endif
@ -373,8 +400,12 @@ void ImGui_ImplDX9_InvalidateDeviceObjects()
void ImGui_ImplDX9_NewFrame()
{
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplDX9_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX9_Init()?");
if (!bd->FontTexture)
ImGui_ImplDX9_CreateDeviceObjects();
}
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

13
backends/imgui_impl_dx9.h
View File

@ -5,16 +5,21 @@
// [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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();
@ -23,3 +28,5 @@ 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();
#endif // #ifndef IMGUI_DISABLE

222
backends/imgui_impl_glfw.cpp
View File

@ -12,11 +12,31 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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 Emscripten support:
// - Emscripten provides its own GLFW (3.2.1) implementation (syntax: "-sUSE_GLFW=3"), but Joystick is broken and several features are not supported (multiple windows, clipboard, timer, etc.)
// - A third-party Emscripten GLFW (3.4.0) implementation (syntax: "--use-port=contrib.glfw3") fixes the Joystick issue and implements all relevant features for the browser.
// See https://github.com/pongasoft/emscripten-glfw/blob/master/docs/Comparison.md for details.
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 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
// - io.PlatformOpenInShellFn -> platform_io.Platform_OpenInShellFn
// 2024-07-31: Added ImGui_ImplGlfw_Sleep() helper function for usage by our examples app, since GLFW doesn't provide one.
// 2024-07-08: *BREAKING* Renamed ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback to ImGui_ImplGlfw_InstallEmscriptenCallbacks(), added GLFWWindow* parameter.
// 2024-07-08: Emscripten: Added support for GLFW3 contrib port (GLFW 3.4.0 features + bug fixes): to enable, replace -sUSE_GLFW=3 with --use-port=contrib.glfw3 (requires emscripten 3.1.59+) (https://github.com/pongasoft/emscripten-glfw)
// 2024-07-02: Emscripten: Added io.PlatformOpenInShellFn() handler for Emscripten versions.
// 2023-12-19: Emscripten: Added ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback() to register canvas selector and auto-resize GLFW window.
// 2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F24 function keys.
// 2023-07-18: Inputs: Revert ignoring mouse data on GLFW_CURSOR_DISABLED as it can be used differently. User may set ImGuiConfigFLags_NoMouse if desired. (#5625, #6609)
// 2023-06-12: Accept glfwGetTime() not returning a monotonically increasing value. This seems to happens on some Windows setup when peripherals disconnect, and is likely to also happen on browser + Emscripten. (#6491)
// 2023-04-04: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_TouchScreen/ImGuiMouseSource_Pen on Windows ONLY, using a custom WndProc hook. (#2702)
// 2023-03-16: Inputs: Fixed key modifiers handling on secondary viewports (docking branch). Broken on 2023/01/04. (#6248, #6034)
// 2023-03-14: Emscripten: Avoid using glfwGetError() and glfwGetGamepadState() which are not correctly implemented in Emscripten emulation. (#6240)
@ -26,7 +46,7 @@
// 2022-10-18: Perform a dummy glfwGetError() read to cancel missing mouse cursors errors. Using GLFW_VERSION_COMBINED directly. (#5785)
// 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).
// 2022-09-01: Inputs: Honor GLFW_CURSOR_DISABLED by not setting mouse position.
// 2022-09-01: Inputs: Honor GLFW_CURSOR_DISABLED by not setting mouse position *EDIT* Reverted 2023-07-18.
// 2022-04-30: Inputs: Fixed ImGui_ImplGlfw_TranslateUntranslatedKey() for lower case letters on OSX.
// 2022-03-23: Inputs: Fixed a regression in 1.87 which resulted in keyboard modifiers events being reported incorrectly on Linux/X11.
// 2022-02-07: Added ImGui_ImplGlfw_InstallCallbacks()/ImGui_ImplGlfw_RestoreCallbacks() helpers to facilitate user installing callbacks after initializing backend.
@ -63,6 +83,7 @@
// 2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_glfw.h"
// Clang warnings with -Weverything
@ -77,17 +98,29 @@
#ifdef _WIN32
#undef APIENTRY
#ifndef GLFW_EXPOSE_NATIVE_WIN32
#define GLFW_EXPOSE_NATIVE_WIN32
#endif
#include <GLFW/glfw3native.h> // for glfwGetWin32Window()
#endif
#ifdef __APPLE__
#ifndef GLFW_EXPOSE_NATIVE_COCOA
#define GLFW_EXPOSE_NATIVE_COCOA
#endif
#include <GLFW/glfw3native.h> // for glfwGetCocoaWindow()
#endif
#ifndef _WIN32
#include <unistd.h> // for usleep()
#endif
#ifdef __EMSCRIPTEN__
#include <emscripten.h>
#include <emscripten/html5.h>
#ifdef EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3
#include <GLFW/emscripten_glfw3.h>
#else
#define EMSCRIPTEN_USE_EMBEDDED_GLFW3
#endif
#endif
// We gather version tests as define in order to easily see which features are version-dependent.
@ -106,7 +139,7 @@ enum GlfwClientApi
{
GlfwClientApi_Unknown,
GlfwClientApi_OpenGL,
GlfwClientApi_Vulkan
GlfwClientApi_Vulkan,
};
struct ImGui_ImplGlfw_Data
@ -119,6 +152,9 @@ struct ImGui_ImplGlfw_Data
ImVec2 LastValidMousePos;
bool InstalledCallbacks;
bool CallbacksChainForAllWindows;
#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
const char* CanvasSelector;
#endif
// Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
GLFWwindowfocusfun PrevUserCallbackWindowFocus;
@ -130,7 +166,7 @@ struct ImGui_ImplGlfw_Data
GLFWcharfun PrevUserCallbackChar;
GLFWmonitorfun PrevUserCallbackMonitor;
#ifdef _WIN32
WNDPROC GlfwWndProc;
WNDPROC PrevWndProc;
#endif
ImGui_ImplGlfw_Data() { memset((void*)this, 0, sizeof(*this)); }
@ -149,16 +185,6 @@ static ImGui_ImplGlfw_Data* ImGui_ImplGlfw_GetBackendData()
}
// Functions
static const char* ImGui_ImplGlfw_GetClipboardText(void* user_data)
{
return glfwGetClipboardString((GLFWwindow*)user_data);
}
static void ImGui_ImplGlfw_SetClipboardText(void* user_data, const char* text)
{
glfwSetClipboardString((GLFWwindow*)user_data, text);
}
static ImGuiKey ImGui_ImplGlfw_KeyToImGuiKey(int key)
{
switch (key)
@ -268,6 +294,18 @@ static ImGuiKey ImGui_ImplGlfw_KeyToImGuiKey(int key)
case GLFW_KEY_F10: return ImGuiKey_F10;
case GLFW_KEY_F11: return ImGuiKey_F11;
case GLFW_KEY_F12: return ImGuiKey_F12;
case GLFW_KEY_F13: return ImGuiKey_F13;
case GLFW_KEY_F14: return ImGuiKey_F14;
case GLFW_KEY_F15: return ImGuiKey_F15;
case GLFW_KEY_F16: return ImGuiKey_F16;
case GLFW_KEY_F17: return ImGuiKey_F17;
case GLFW_KEY_F18: return ImGuiKey_F18;
case GLFW_KEY_F19: return ImGuiKey_F19;
case GLFW_KEY_F20: return ImGuiKey_F20;
case GLFW_KEY_F21: return ImGuiKey_F21;
case GLFW_KEY_F22: return ImGuiKey_F22;
case GLFW_KEY_F23: return ImGuiKey_F23;
case GLFW_KEY_F24: return ImGuiKey_F24;
default: return ImGuiKey_None;
}
}
@ -308,7 +346,7 @@ void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yo
if (bd->PrevUserCallbackScroll != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
bd->PrevUserCallbackScroll(window, xoffset, yoffset);
#ifdef __EMSCRIPTEN__
#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
// Ignore GLFW events: will be processed in ImGui_ImplEmscripten_WheelCallback().
return;
#endif
@ -319,7 +357,7 @@ void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yo
static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode)
{
#if GLFW_HAS_GETKEYNAME && !defined(__EMSCRIPTEN__)
#if GLFW_HAS_GETKEYNAME && !defined(EMSCRIPTEN_USE_EMBEDDED_GLFW3)
// GLFW 3.1+ attempts to "untranslate" keys, which goes the opposite of what every other framework does, making using lettered shortcuts difficult.
// (It had reasons to do so: namely GLFW is/was more likely to be used for WASD-type game controls rather than lettered shortcuts, but IHMO the 3.1 change could have been done differently)
// See https://github.com/glfw/glfw/issues/1502 for details.
@ -330,7 +368,7 @@ static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode)
GLFWerrorfun prev_error_callback = glfwSetErrorCallback(nullptr);
const char* key_name = glfwGetKeyName(key, scancode);
glfwSetErrorCallback(prev_error_callback);
#if GLFW_HAS_GETERROR && !defined(__EMSCRIPTEN__) // Eat errors (see #5908)
#if GLFW_HAS_GETERROR && !defined(EMSCRIPTEN_USE_EMBEDDED_GLFW3) // Eat errors (see #5908)
(void)glfwGetError(nullptr);
#endif
if (key_name && key_name[0] != 0 && key_name[1] == 0)
@ -384,8 +422,6 @@ void ImGui_ImplGlfw_CursorPosCallback(GLFWwindow* window, double x, double y)
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackCursorPos != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
bd->PrevUserCallbackCursorPos(window, x, y);
if (glfwGetInputMode(window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
return;
ImGuiIO& io = ImGui::GetIO();
io.AddMousePosEvent((float)x, (float)y);
@ -399,8 +435,6 @@ void ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered)
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackCursorEnter != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
bd->PrevUserCallbackCursorEnter(window, entered);
if (glfwGetInputMode(window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
return;
ImGuiIO& io = ImGui::GetIO();
if (entered)
@ -431,7 +465,7 @@ void ImGui_ImplGlfw_MonitorCallback(GLFWmonitor*, int)
// Unused in 'master' branch but 'docking' branch will use this, so we declare it ahead of it so if you have to install callbacks you can install this one too.
}
#ifdef __EMSCRIPTEN__
#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
static EM_BOOL ImGui_ImplEmscripten_WheelCallback(int, const EmscriptenWheelEvent* ev, void*)
{
// Mimic Emscripten_HandleWheel() in SDL.
@ -474,7 +508,7 @@ static LRESULT CALLBACK ImGui_ImplGlfw_WndProc(HWND hWnd, UINT msg, WPARAM wPara
ImGui::GetIO().AddMouseSourceEvent(GetMouseSourceFromMessageExtraInfo());
break;
}
return ::CallWindowProc(bd->GlfwWndProc, hWnd, msg, wParam, lParam);
return ::CallWindowProcW(bd->PrevWndProc, hWnd, msg, wParam, lParam);
}
#endif
@ -530,9 +564,18 @@ void ImGui_ImplGlfw_SetCallbacksChainForAllWindows(bool chain_for_all_windows)
bd->CallbacksChainForAllWindows = chain_for_all_windows;
}
#ifdef __EMSCRIPTEN__
#if EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3 >= 34020240817
void ImGui_ImplGlfw_EmscriptenOpenURL(const char* url) { if (url) emscripten::glfw3::OpenURL(url); }
#else
EM_JS(void, ImGui_ImplGlfw_EmscriptenOpenURL, (const char* url), { url = url ? UTF8ToString(url) : null; if (url) window.open(url, '_blank'); });
#endif
#endif
static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, GlfwClientApi client_api)
{
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
//printf("GLFW_VERSION: %d.%d.%d (%d)", GLFW_VERSION_MAJOR, GLFW_VERSION_MINOR, GLFW_VERSION_REVISION, GLFW_VERSION_COMBINED);
@ -546,9 +589,12 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
bd->Window = window;
bd->Time = 0.0;
io.SetClipboardTextFn = ImGui_ImplGlfw_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplGlfw_GetClipboardText;
io.ClipboardUserData = bd->Window;
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_SetClipboardTextFn = [](ImGuiContext*, const char* text) { glfwSetClipboardString(NULL, text); };
platform_io.Platform_GetClipboardTextFn = [](ImGuiContext*) { return glfwGetClipboardString(NULL); };
#ifdef __EMSCRIPTEN__
platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplGlfw_EmscriptenOpenURL(url); return true; };
#endif
// Create mouse cursors
// (By design, on X11 cursors are user configurable and some cursors may be missing. When a cursor doesn't exist,
@ -579,15 +625,10 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
// Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
if (install_callbacks)
ImGui_ImplGlfw_InstallCallbacks(window);
// Register Emscripten Wheel callback to workaround issue in Emscripten GLFW Emulation (#6096)
// We intentionally do not check 'if (install_callbacks)' here, as some users may set it to false and call GLFW callback themselves.
// FIXME: May break chaining in case user registered their own Emscripten callback?
#ifdef __EMSCRIPTEN__
emscripten_set_wheel_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, nullptr, false, ImGui_ImplEmscripten_WheelCallback);
#endif
// Set platform dependent data in viewport
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->PlatformHandle = (void*)bd->Window;
#ifdef _WIN32
main_viewport->PlatformHandleRaw = glfwGetWin32Window(bd->Window);
#elif defined(__APPLE__)
@ -598,9 +639,26 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
// Windows: register a WndProc hook so we can intercept some messages.
#ifdef _WIN32
bd->GlfwWndProc = (WNDPROC)::GetWindowLongPtr((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC);
IM_ASSERT(bd->GlfwWndProc != nullptr);
::SetWindowLongPtr((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)ImGui_ImplGlfw_WndProc);
bd->PrevWndProc = (WNDPROC)::GetWindowLongPtrW((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC);
IM_ASSERT(bd->PrevWndProc != nullptr);
::SetWindowLongPtrW((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)ImGui_ImplGlfw_WndProc);
#endif
// Emscripten: the same application can run on various platforms, so we detect the Apple platform at runtime
// to override io.ConfigMacOSXBehaviors from its default (which is always false in Emscripten).
#ifdef __EMSCRIPTEN__
#if EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3 >= 34020240817
if (emscripten::glfw3::IsRuntimePlatformApple())
{
ImGui::GetIO().ConfigMacOSXBehaviors = true;
// Due to how the browser (poorly) handles the Meta Key, this line essentially disables repeats when used.
// This means that Meta + V only registers a single key-press, even if the keys are held.
// This is a compromise for dealing with this issue in ImGui since ImGui implements key repeat itself.
// See https://github.com/pongasoft/emscripten-glfw/blob/v3.4.0.20240817/docs/Usage.md#the-problem-of-the-super-key
emscripten::glfw3::SetSuperPlusKeyTimeouts(10, 10);
}
#endif
#endif
bd->ClientApi = client_api;
@ -630,15 +688,19 @@ void ImGui_ImplGlfw_Shutdown()
if (bd->InstalledCallbacks)
ImGui_ImplGlfw_RestoreCallbacks(bd->Window);
#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
if (bd->CanvasSelector)
emscripten_set_wheel_callback(bd->CanvasSelector, nullptr, false, nullptr);
#endif
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
glfwDestroyCursor(bd->MouseCursors[cursor_n]);
// Windows: register a WndProc hook so we can intercept some messages.
// Windows: restore our WndProc hook
#ifdef _WIN32
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
::SetWindowLongPtr((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)bd->GlfwWndProc);
bd->GlfwWndProc = nullptr;
::SetWindowLongPtrW((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)bd->PrevWndProc);
bd->PrevWndProc = nullptr;
#endif
io.BackendPlatformName = nullptr;
@ -652,17 +714,10 @@ static void ImGui_ImplGlfw_UpdateMouseData()
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
if (glfwGetInputMode(bd->Window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
{
io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
return;
}
// (those braces are here to reduce diff with multi-viewports support in 'docking' branch)
{
GLFWwindow* window = bd->Window;
#ifdef __EMSCRIPTEN__
#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
const bool is_window_focused = true;
#else
const bool is_window_focused = glfwGetWindowAttrib(window, GLFW_FOCUSED) != 0;
@ -720,7 +775,7 @@ static void ImGui_ImplGlfw_UpdateGamepads()
return;
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
#if GLFW_HAS_GAMEPAD_API && !defined(__EMSCRIPTEN__)
#if GLFW_HAS_GAMEPAD_API && !defined(EMSCRIPTEN_USE_EMBEDDED_GLFW3)
GLFWgamepadstate gamepad;
if (!glfwGetGamepadState(GLFW_JOYSTICK_1, &gamepad))
return;
@ -768,7 +823,7 @@ void ImGui_ImplGlfw_NewFrame()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplGlfw_InitForXXX()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplGlfw_InitForXXX()?");
// Setup display size (every frame to accommodate for window resizing)
int w, h;
@ -780,7 +835,10 @@ void ImGui_ImplGlfw_NewFrame()
io.DisplayFramebufferScale = ImVec2((float)display_w / (float)w, (float)display_h / (float)h);
// Setup time step
// (Accept glfwGetTime() not returning a monotonically increasing value. Seems to happens on disconnecting peripherals and probably on VMs and Emscripten, see #6491, #6189, #6114, #3644)
double current_time = glfwGetTime();
if (current_time <= bd->Time)
current_time = bd->Time + 0.00001f;
io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f);
bd->Time = current_time;
@ -791,6 +849,72 @@ void ImGui_ImplGlfw_NewFrame()
ImGui_ImplGlfw_UpdateGamepads();
}
// GLFW doesn't provide a portable sleep function
void ImGui_ImplGlfw_Sleep(int milliseconds)
{
#ifdef _WIN32
::Sleep(milliseconds);
#else
usleep(milliseconds * 1000);
#endif
}
#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
static EM_BOOL ImGui_ImplGlfw_OnCanvasSizeChange(int event_type, const EmscriptenUiEvent* event, void* user_data)
{
ImGui_ImplGlfw_Data* bd = (ImGui_ImplGlfw_Data*)user_data;
double canvas_width, canvas_height;
emscripten_get_element_css_size(bd->CanvasSelector, &canvas_width, &canvas_height);
glfwSetWindowSize(bd->Window, (int)canvas_width, (int)canvas_height);
return true;
}
static EM_BOOL ImGui_ImplEmscripten_FullscreenChangeCallback(int event_type, const EmscriptenFullscreenChangeEvent* event, void* user_data)
{
ImGui_ImplGlfw_Data* bd = (ImGui_ImplGlfw_Data*)user_data;
double canvas_width, canvas_height;
emscripten_get_element_css_size(bd->CanvasSelector, &canvas_width, &canvas_height);
glfwSetWindowSize(bd->Window, (int)canvas_width, (int)canvas_height);
return true;
}
// 'canvas_selector' is a CSS selector. The event listener is applied to the first element that matches the query.
// STRING MUST PERSIST FOR THE APPLICATION DURATION. PLEASE USE A STRING LITERAL OR ENSURE POINTER WILL STAY VALID.
void ImGui_ImplGlfw_InstallEmscriptenCallbacks(GLFWwindow*, const char* canvas_selector)
{
IM_ASSERT(canvas_selector != nullptr);
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplGlfw_InitForXXX()?");
bd->CanvasSelector = canvas_selector;
emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, bd, false, ImGui_ImplGlfw_OnCanvasSizeChange);
emscripten_set_fullscreenchange_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, bd, false, ImGui_ImplEmscripten_FullscreenChangeCallback);
// Change the size of the GLFW window according to the size of the canvas
ImGui_ImplGlfw_OnCanvasSizeChange(EMSCRIPTEN_EVENT_RESIZE, {}, bd);
// Register Emscripten Wheel callback to workaround issue in Emscripten GLFW Emulation (#6096)
// We intentionally do not check 'if (install_callbacks)' here, as some users may set it to false and call GLFW callback themselves.
// FIXME: May break chaining in case user registered their own Emscripten callback?
emscripten_set_wheel_callback(bd->CanvasSelector, nullptr, false, ImGui_ImplEmscripten_WheelCallback);
}
#elif defined(EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3)
// When using --use-port=contrib.glfw3 for the GLFW implementation, you can override the behavior of this call
// by invoking emscripten_glfw_make_canvas_resizable afterward.
// See https://github.com/pongasoft/emscripten-glfw/blob/master/docs/Usage.md#how-to-make-the-canvas-resizable-by-the-user for an explanation
void ImGui_ImplGlfw_InstallEmscriptenCallbacks(GLFWwindow* window, const char* canvas_selector)
{
GLFWwindow* w = (GLFWwindow*)(EM_ASM_INT({ return Module.glfwGetWindow(UTF8ToString($0)); }, canvas_selector));
IM_ASSERT(window == w); // Sanity check
IM_UNUSED(w);
emscripten_glfw_make_canvas_resizable(window, "window", nullptr);
}
#endif // #ifdef EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3
//-----------------------------------------------------------------------------
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#endif // #ifndef IMGUI_DISABLE

20
backends/imgui_impl_glfw.h
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@ -11,21 +11,32 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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.
@ -45,3 +56,8 @@ IMGUI_IMPL_API void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double
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);
#endif // #ifndef IMGUI_DISABLE

13
backends/imgui_impl_glut.cpp
View File

@ -16,8 +16,11 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
@ -32,6 +35,7 @@
// 2018-03-22: Added GLUT Platform binding.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_glut.h"
#define GL_SILENCE_DEPRECATION
#ifdef __APPLE__
@ -163,6 +167,7 @@ static ImGuiKey ImGui_ImplGLUT_KeyToImGuiKey(int key)
bool ImGui_ImplGLUT_Init()
{
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
#ifdef FREEGLUT
io.BackendPlatformName = "imgui_impl_glut (freeglut)";
@ -298,3 +303,7 @@ void ImGui_ImplGLUT_MotionFunc(int x, int y)
ImGuiIO& io = ImGui::GetIO();
io.AddMousePosEvent((float)x, (float)y);
}
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

13
backends/imgui_impl_glut.h
View File

@ -16,12 +16,17 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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();
@ -29,7 +34,7 @@ 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 ---------
//------------------------------------ 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
@ -38,3 +43,5 @@ IMGUI_IMPL_API void ImGui_ImplGLUT_KeyboardFunc(unsigned char c, int x, int
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

16
backends/imgui_impl_metal.h
View File

@ -5,12 +5,16 @@
// [X] Renderer: User texture binding. Use 'MTLTexture' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h" // IMGUI_IMPL_API
#ifndef IMGUI_DISABLE
//-----------------------------------------------------------------------------
// ObjC API
@ -21,6 +25,7 @@
@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);
@ -47,6 +52,7 @@ IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();
#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);
@ -62,3 +68,7 @@ IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();
#endif
#endif
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

26
backends/imgui_impl_metal.mm
View File

@ -7,8 +7,11 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
@ -30,6 +33,7 @@
// 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>
@ -75,7 +79,6 @@ struct ImGui_ImplMetal_Data
ImGui_ImplMetal_Data() { memset(this, 0, sizeof(*this)); }
};
static ImGui_ImplMetal_Data* ImGui_ImplMetal_CreateBackendData() { return IM_NEW(ImGui_ImplMetal_Data)(); }
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()); }
@ -121,8 +124,11 @@ bool ImGui_ImplMetal_CreateDeviceObjects(MTL::Device* device)
bool ImGui_ImplMetal_Init(id<MTLDevice> device)
{
ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_CreateBackendData();
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.
@ -149,7 +155,7 @@ void ImGui_ImplMetal_Shutdown()
void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor* renderPassDescriptor)
{
ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
IM_ASSERT(bd->SharedMetalContext != nil && "No Metal context. Did you call ImGui_ImplMetal_Init() ?");
IM_ASSERT(bd != nil && "Context or backend not initialized! Did you call ImGui_ImplMetal_Init()?");
bd->SharedMetalContext.framebufferDescriptor = [[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor];
if (bd->SharedMetalContext.depthStencilState == nil)
@ -543,13 +549,13 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
}
MTLVertexDescriptor* vertexDescriptor = [MTLVertexDescriptor vertexDescriptor];
vertexDescriptor.attributes[0].offset = IM_OFFSETOF(ImDrawVert, pos);
vertexDescriptor.attributes[0].offset = offsetof(ImDrawVert, pos);
vertexDescriptor.attributes[0].format = MTLVertexFormatFloat2; // position
vertexDescriptor.attributes[0].bufferIndex = 0;
vertexDescriptor.attributes[1].offset = IM_OFFSETOF(ImDrawVert, uv);
vertexDescriptor.attributes[1].offset = offsetof(ImDrawVert, uv);
vertexDescriptor.attributes[1].format = MTLVertexFormatFloat2; // texCoords
vertexDescriptor.attributes[1].bufferIndex = 0;
vertexDescriptor.attributes[2].offset = IM_OFFSETOF(ImDrawVert, col);
vertexDescriptor.attributes[2].offset = offsetof(ImDrawVert, col);
vertexDescriptor.attributes[2].format = MTLVertexFormatUChar4; // color
vertexDescriptor.attributes[2].bufferIndex = 0;
vertexDescriptor.layouts[0].stepRate = 1;
@ -580,3 +586,7 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
}
@end
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

30
backends/imgui_impl_opengl2.cpp
View File

@ -6,8 +6,11 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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**
@ -19,8 +22,9 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 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 the ImDrawCmd::IdxOffset field! This is an old bug but it never had an effect until some internal rendering changes in 1.86.
// 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.
@ -37,12 +41,9 @@
// 2016-09-05: OpenGL: Fixed save and restore of current scissor rectangle.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_opengl2.h"
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
@ -83,6 +84,7 @@ static ImGui_ImplOpenGL2_Data* ImGui_ImplOpenGL2_GetBackendData()
bool ImGui_ImplOpenGL2_Init()
{
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
// Setup backend capabilities flags
@ -108,10 +110,12 @@ void ImGui_ImplOpenGL2_Shutdown()
void ImGui_ImplOpenGL2_NewFrame()
{
ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplOpenGL2_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOpenGL2_Init()?");
if (!bd->FontTexture)
ImGui_ImplOpenGL2_CreateDeviceObjects();
if (!bd->FontTexture)
ImGui_ImplOpenGL2_CreateFontsTexture();
}
static void ImGui_ImplOpenGL2_SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height)
@ -191,9 +195,9 @@ void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, pos)));
glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, uv)));
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, col)));
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 < cmd_list->CmdBuffer.Size; cmd_i++)
{
@ -293,6 +297,10 @@ void ImGui_ImplOpenGL2_DestroyDeviceObjects()
ImGui_ImplOpenGL2_DestroyFontsTexture();
}
//-----------------------------------------------------------------------------
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#endif // #ifndef IMGUI_DISABLE

13
backends/imgui_impl_opengl2.h
View File

@ -4,10 +4,13 @@
// Implemented features:
// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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**
@ -19,7 +22,9 @@
#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();
@ -30,3 +35,5 @@ IMGUI_IMPL_API bool ImGui_ImplOpenGL2_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplOpenGL2_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplOpenGL2_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplOpenGL2_DestroyDeviceObjects();
#endif // #ifndef IMGUI_DISABLE

136
backends/imgui_impl_opengl3.cpp
View File

@ -7,13 +7,28 @@
// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
// [x] Renderer: Large meshes support (64k+ vertices) with 16-bit indices (Desktop OpenGL only).
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
// 2024-06-28: OpenGL: ImGui_ImplOpenGL3_NewFrame() recreates font texture if it has been destroyed by ImGui_ImplOpenGL3_DestroyFontsTexture(). (#7748)
// 2024-05-07: OpenGL: Update loader for Linux to support EGL/GLVND. (#7562)
// 2024-04-16: OpenGL: Detect ES3 contexts on desktop based on version string, to e.g. avoid calling glPolygonMode() on them. (#7447)
// 2024-01-09: OpenGL: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" and variants, fixing regression on distros missing a symlink.
// 2023-11-08: OpenGL: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" instead of "libGL.so.1", accommodating for NetBSD systems having only "libGL.so.3" available. (#6983)
// 2023-10-05: OpenGL: Rename symbols in our internal loader so that LTO compilation with another copy of gl3w is possible. (#6875, #6668, #4445)
// 2023-06-20: OpenGL: Fixed erroneous use glGetIntegerv(GL_CONTEXT_PROFILE_MASK) on contexts lower than 3.2. (#6539, #6333)
// 2023-05-09: OpenGL: Support for glBindSampler() backup/restore on ES3. (#6375)
// 2023-04-18: OpenGL: Restore front and back polygon mode separately when supported by context. (#6333)
// 2023-03-23: OpenGL: Properly restoring "no shader program bound" if it was the case prior to running the rendering function. (#6267, #6220, #6224)
@ -98,13 +113,10 @@
#endif
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_opengl3.h"
#include <stdio.h>
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
#if defined(__APPLE__)
#include <TargetConditionals.h>
#endif
@ -112,6 +124,7 @@
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: ignore unknown flags
#pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#pragma clang diagnostic ignored "-Wunused-macros" // warning: macro is not used
@ -167,9 +180,21 @@
#define GL_VERTEX_ARRAY_BINDING GL_VERTEX_ARRAY_BINDING_OES
#endif
// Desktop GL 2.0+ has glPolygonMode() which GL ES and WebGL don't have.
#ifdef GL_POLYGON_MODE
#define IMGUI_IMPL_HAS_POLYGON_MODE
// Desktop GL 2.0+ has extension and glPolygonMode() which GL ES and WebGL don't have..
// A desktop ES context can technically compile fine with our loader, so we also perform a runtime checks
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3)
#define IMGUI_IMPL_OPENGL_HAS_EXTENSIONS // has glGetIntegerv(GL_NUM_EXTENSIONS)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE // may have glPolygonMode()
#endif
// Desktop GL 2.1+ and GL ES 3.0+ have glBindBuffer() with GL_PIXEL_UNPACK_BUFFER target.
#if !defined(IMGUI_IMPL_OPENGL_ES2)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
#endif
// Desktop GL 3.1+ has GL_PRIMITIVE_RESTART state
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_1)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
#endif
// Desktop GL 3.2+ has glDrawElementsBaseVertex() which GL ES and WebGL don't have.
@ -182,16 +207,6 @@
#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
#endif
// Desktop GL 3.1+ has GL_PRIMITIVE_RESTART state
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_1)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
#endif
// Desktop GL use extension detection
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_EXTENSIONS
#endif
// [Debugging]
//#define IMGUI_IMPL_OPENGL_DEBUG
#ifdef IMGUI_IMPL_OPENGL_DEBUG
@ -220,6 +235,7 @@ struct ImGui_ImplOpenGL3_Data
unsigned int VboHandle, ElementsHandle;
GLsizeiptr VertexBufferSize;
GLsizeiptr IndexBufferSize;
bool HasPolygonMode;
bool HasClipOrigin;
bool UseBufferSubData;
@ -261,6 +277,7 @@ struct ImGui_ImplOpenGL3_VtxAttribState
bool ImGui_ImplOpenGL3_Init(const char* glsl_version)
{
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
// Initialize our loader
@ -278,23 +295,33 @@ bool ImGui_ImplOpenGL3_Init(const char* glsl_version)
io.BackendRendererName = "imgui_impl_opengl3";
// Query for GL version (e.g. 320 for GL 3.2)
#if !defined(IMGUI_IMPL_OPENGL_ES2)
#if defined(IMGUI_IMPL_OPENGL_ES2)
// GLES 2
bd->GlVersion = 200;
bd->GlProfileIsES2 = true;
#else
// Desktop or GLES 3
const char* gl_version_str = (const char*)glGetString(GL_VERSION);
GLint major = 0;
GLint minor = 0;
glGetIntegerv(GL_MAJOR_VERSION, &major);
glGetIntegerv(GL_MINOR_VERSION, &minor);
if (major == 0 && minor == 0)
{
// Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
const char* gl_version = (const char*)glGetString(GL_VERSION);
sscanf(gl_version, "%d.%d", &major, &minor);
}
sscanf(gl_version_str, "%d.%d", &major, &minor); // Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
bd->GlVersion = (GLuint)(major * 100 + minor * 10);
#if defined(GL_CONTEXT_PROFILE_MASK)
glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &bd->GlProfileMask);
if (bd->GlVersion >= 320)
glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &bd->GlProfileMask);
bd->GlProfileIsCompat = (bd->GlProfileMask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT) != 0;
#endif
#if defined(IMGUI_IMPL_OPENGL_ES3)
bd->GlProfileIsES3 = true;
#else
if (strncmp(gl_version_str, "OpenGL ES 3", 11) == 0)
bd->GlProfileIsES3 = true;
#endif
bd->UseBufferSubData = false;
/*
// Query vendor to enable glBufferSubData kludge
@ -304,16 +331,10 @@ bool ImGui_ImplOpenGL3_Init(const char* glsl_version)
bd->UseBufferSubData = true;
#endif
*/
#elif defined(IMGUI_IMPL_OPENGL_ES2)
bd->GlVersion = 200; // GLES 2
bd->GlProfileIsES2 = true;
#elif defined(IMGUI_IMPL_OPENGL_ES3)
bd->GlVersion = 200; // Don't raise version as it is intended as a desktop version check for now.
bd->GlProfileIsES3 = true;
#endif
#ifdef IMGUI_IMPL_OPENGL_DEBUG
printf("GL_MAJOR_VERSION = %d\nGL_MINOR_VERSION = %d\nGL_VENDOR = '%s'\nGL_RENDERER = '%s'\n", major, minor, (const char*)glGetString(GL_VENDOR), (const char*)glGetString(GL_RENDERER)); // [DEBUG]
printf("GlVersion = %d, \"%s\"\nGlProfileIsCompat = %d\nGlProfileMask = 0x%X\nGlProfileIsES2 = %d, GlProfileIsES3 = %d\nGL_VENDOR = '%s'\nGL_RENDERER = '%s'\n", bd->GlVersion, gl_version_str, bd->GlProfileIsCompat, bd->GlProfileMask, bd->GlProfileIsES2, bd->GlProfileIsES3, (const char*)glGetString(GL_VENDOR), (const char*)glGetString(GL_RENDERER)); // [DEBUG]
#endif
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
@ -345,8 +366,11 @@ bool ImGui_ImplOpenGL3_Init(const char* glsl_version)
glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_texture);
// Detect extensions we support
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
bd->HasPolygonMode = (!bd->GlProfileIsES2 && !bd->GlProfileIsES3);
#endif
bd->HasClipOrigin = (bd->GlVersion >= 450);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_EXTENSIONS
#ifdef IMGUI_IMPL_OPENGL_HAS_EXTENSIONS
GLint num_extensions = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &num_extensions);
for (GLint i = 0; i < num_extensions; i++)
@ -376,10 +400,12 @@ void ImGui_ImplOpenGL3_Shutdown()
void ImGui_ImplOpenGL3_NewFrame()
{
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplOpenGL3_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOpenGL3_Init()?");
if (!bd->ShaderHandle)
ImGui_ImplOpenGL3_CreateDeviceObjects();
if (!bd->FontTexture)
ImGui_ImplOpenGL3_CreateFontsTexture();
}
static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height, GLuint vertex_array_object)
@ -398,8 +424,9 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
if (bd->GlVersion >= 310)
glDisable(GL_PRIMITIVE_RESTART);
#endif
#ifdef IMGUI_IMPL_HAS_POLYGON_MODE
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
if (bd->HasPolygonMode)
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
#endif
// Support for GL 4.5 rarely used glClipControl(GL_UPPER_LEFT)
@ -450,9 +477,9 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
GL_CALL(glEnableVertexAttribArray(bd->AttribLocationVtxPos));
GL_CALL(glEnableVertexAttribArray(bd->AttribLocationVtxUV));
GL_CALL(glEnableVertexAttribArray(bd->AttribLocationVtxColor));
GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxPos, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, pos)));
GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, uv)));
GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, col)));
GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxPos, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)offsetof(ImDrawVert, pos)));
GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)offsetof(ImDrawVert, uv)));
GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)offsetof(ImDrawVert, col)));
}
// OpenGL3 Render function.
@ -487,8 +514,8 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
GLuint last_vertex_array_object; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, (GLint*)&last_vertex_array_object);
#endif
#ifdef IMGUI_IMPL_HAS_POLYGON_MODE
GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
GLint last_polygon_mode[2]; if (bd->HasPolygonMode) { glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode); }
#endif
GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
@ -626,18 +653,10 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
if (bd->GlVersion >= 310) { if (last_enable_primitive_restart) glEnable(GL_PRIMITIVE_RESTART); else glDisable(GL_PRIMITIVE_RESTART); }
#endif
#ifdef IMGUI_IMPL_HAS_POLYGON_MODE
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
// Desktop OpenGL 3.0 and OpenGL 3.1 had separate polygon draw modes for front-facing and back-facing faces of polygons
if (bd->GlVersion <= 310 || bd->GlProfileIsCompat)
{
glPolygonMode(GL_FRONT, (GLenum)last_polygon_mode[0]);
glPolygonMode(GL_BACK, (GLenum)last_polygon_mode[1]);
}
else
{
glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]);
}
#endif // IMGUI_IMPL_HAS_POLYGON_MODE
if (bd->HasPolygonMode) { if (bd->GlVersion <= 310 || bd->GlProfileIsCompat) { glPolygonMode(GL_FRONT, (GLenum)last_polygon_mode[0]); glPolygonMode(GL_BACK, (GLenum)last_polygon_mode[1]); } else { glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]); } }
#endif // IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
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]);
@ -734,6 +753,10 @@ bool ImGui_ImplOpenGL3_CreateDeviceObjects()
GLint last_texture, last_array_buffer;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
GLint last_pixel_unpack_buffer = 0;
if (bd->GlVersion >= 210) { glGetIntegerv(GL_PIXEL_UNPACK_BUFFER_BINDING, &last_pixel_unpack_buffer); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); }
#endif
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
GLint last_vertex_array;
glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
@ -907,6 +930,9 @@ bool ImGui_ImplOpenGL3_CreateDeviceObjects()
// Restore modified GL state
glBindTexture(GL_TEXTURE_2D, last_texture);
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
if (bd->GlVersion >= 210) { glBindBuffer(GL_PIXEL_UNPACK_BUFFER, last_pixel_unpack_buffer); }
#endif
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
glBindVertexArray(last_vertex_array);
#endif
@ -923,9 +949,13 @@ void ImGui_ImplOpenGL3_DestroyDeviceObjects()
ImGui_ImplOpenGL3_DestroyFontsTexture();
}
//-----------------------------------------------------------------------------
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#endif // #ifndef IMGUI_DISABLE

23
backends/imgui_impl_opengl3.h
View File

@ -7,10 +7,18 @@
// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
// [x] Renderer: Large meshes support (64k+ vertices) with 16-bit indices (Desktop OpenGL only).
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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.
@ -19,8 +27,9 @@
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
#ifndef IMGUI_DISABLE
// Backend API
// 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();
@ -32,9 +41,9 @@ IMGUI_IMPL_API void ImGui_ImplOpenGL3_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplOpenGL3_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplOpenGL3_DestroyDeviceObjects();
// Specific OpenGL ES versions
//#define IMGUI_IMPL_OPENGL_ES2 // Auto-detected on Emscripten
//#define IMGUI_IMPL_OPENGL_ES3 // Auto-detected on iOS/Android
// 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) \
@ -53,3 +62,5 @@ IMGUI_IMPL_API void ImGui_ImplOpenGL3_DestroyDeviceObjects();
#endif
#endif
#endif // #ifndef IMGUI_DISABLE

137
backends/imgui_impl_opengl3_loader.h
View File

@ -10,7 +10,7 @@
// 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 INCUDING 'imgui_impl_opengl3_loader.h'
// 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.
@ -18,7 +18,7 @@
// WILL NOT BE USING OUR LOADER, AND INSTEAD EXPECT ANOTHER/YOUR LOADER TO BE AVAILABLE IN THE COMPILATION UNIT.
//
// Regenerate with:
// python gl3w_gen.py --output ../imgui/backends/imgui_impl_opengl3_loader.h --ref ../imgui/backends/imgui_impl_opengl3.cpp ./extra_symbols.txt
// 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
@ -346,6 +346,10 @@ GLAPI void APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean
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
@ -467,7 +471,7 @@ GL3W_API int imgl3wIsSupported(int major, int minor);
GL3W_API GL3WglProc imgl3wGetProcAddress(const char *proc);
/* gl3w internal state */
union GL3WProcs {
union ImGL3WProcs {
GL3WglProc ptr[59];
struct {
PFNGLACTIVETEXTUREPROC ActiveTexture;
@ -532,7 +536,7 @@ union GL3WProcs {
} gl;
};
GL3W_API extern union GL3WProcs imgl3wProcs;
GL3W_API extern union ImGL3WProcs imgl3wProcs;
/* OpenGL functions */
#define glActiveTexture imgl3wProcs.gl.ActiveTexture
@ -608,7 +612,7 @@ extern "C" {
#include <stdlib.h>
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#define GL3W_ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#if defined(_WIN32)
#ifndef WIN32_LEAN_AND_MEAN
@ -661,26 +665,123 @@ static GL3WglProc get_proc(const char *proc)
#else
#include <dlfcn.h>
static void *libgl;
static GL3WglProc (*glx_get_proc_address)(const GLubyte *);
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)
{
*lib = dlopen(name, RTLD_LAZY | RTLD_LOCAL | RTLD_NOLOAD);
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)
{
libgl = dlopen("libGL.so.1", RTLD_LAZY | RTLD_LOCAL);
if (!libgl)
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;
*(void **)(&glx_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB");
}
return GL3W_OK;
}
static void close_libgl(void) { dlclose(libgl); }
static GL3WglProc get_proc(const char *proc)
static GL3WglProc get_proc(const char* proc)
{
GL3WglProc res;
res = glx_get_proc_address((const GLubyte *)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)
*(void **)(&res) = dlsym(libgl, proc);
res = gl_get_proc_address(proc);
if (!libegl && !res)
*(void**)(&res) = dlsym(libgl, proc);
return res;
}
#endif
@ -794,12 +895,12 @@ static const char *proc_names[] = {
"glViewport",
};
GL3W_API union GL3WProcs imgl3wProcs;
GL3W_API union ImGL3WProcs imgl3wProcs;
static void load_procs(GL3WGetProcAddressProc proc)
{
size_t i;
for (i = 0; i < ARRAY_SIZE(proc_names); i++)
for (i = 0; i < GL3W_ARRAY_SIZE(proc_names); i++)
imgl3wProcs.ptr[i] = proc(proc_names[i]);
}

12
backends/imgui_impl_osx.h
View File

@ -13,16 +13,21 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#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);
@ -37,9 +42,12 @@ IMGUI_IMPL_API void ImGui_ImplOSX_NewFrame(NSView* _Nullable view);
// #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

70
backends/imgui_impl_osx.mm
View File

@ -13,10 +13,14 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#import "imgui.h"
#ifndef IMGUI_DISABLE
#import "imgui_impl_osx.h"
#import <Cocoa/Cocoa.h>
#import <Carbon/Carbon.h>
@ -25,6 +29,12 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 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
// - io.PlatformSetImeDataFn -> platform_io.Platform_SetImeDataFn
// 2024-07-02: Update for io.SetPlatformImeDataFn() -> io.PlatformSetImeDataFn() renaming in main library.
// 2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F20 function keys. Stopped mapping F13 into PrintScreen.
// 2023-04-09: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_Pen.
// 2023-02-01: Fixed scroll wheel scaling for devices emitting events with hasPreciseScrollingDeltas==false (e.g. non-Apple mices).
// 2022-11-02: Fixed mouse coordinates before clicking the host window.
@ -75,11 +85,11 @@ struct ImGui_ImplOSX_Data
KeyEventResponder* KeyEventResponder;
NSTextInputContext* InputContext;
id Monitor;
NSWindow* Window;
ImGui_ImplOSX_Data() { memset(this, 0, sizeof(*this)); }
};
static ImGui_ImplOSX_Data* ImGui_ImplOSX_CreateBackendData() { return IM_NEW(ImGui_ImplOSX_Data)(); }
static ImGui_ImplOSX_Data* ImGui_ImplOSX_GetBackendData() { return (ImGui_ImplOSX_Data*)ImGui::GetIO().BackendPlatformUserData; }
static void ImGui_ImplOSX_DestroyBackendData() { IM_DELETE(ImGui_ImplOSX_GetBackendData()); }
@ -129,7 +139,7 @@ static bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view);
- (void)updateImePosWithView:(NSView *)view
{
NSWindow *window = view.window;
NSWindow* window = view.window;
if (!window)
return;
NSRect contentRect = [window contentRectForFrameRect:window.frame];
@ -333,36 +343,36 @@ static ImGuiKey ImGui_ImplOSX_KeyCodeToImGuiKey(int key_code)
case kVK_RightOption: return ImGuiKey_RightAlt;
case kVK_RightCommand: return ImGuiKey_RightSuper;
// case kVK_Function: return ImGuiKey_;
// case kVK_F17: return ImGuiKey_;
// case kVK_VolumeUp: return ImGuiKey_;
// case kVK_VolumeDown: return ImGuiKey_;
// case kVK_Mute: return ImGuiKey_;
// case kVK_F18: return ImGuiKey_;
// case kVK_F19: return ImGuiKey_;
// case kVK_F20: return ImGuiKey_;
case kVK_F1: return ImGuiKey_F1;
case kVK_F2: return ImGuiKey_F2;
case kVK_F3: return ImGuiKey_F3;
case kVK_F4: return ImGuiKey_F4;
case kVK_F5: return ImGuiKey_F5;
case kVK_F6: return ImGuiKey_F6;
case kVK_F7: return ImGuiKey_F7;
case kVK_F3: return ImGuiKey_F3;
case kVK_F8: return ImGuiKey_F8;
case kVK_F9: return ImGuiKey_F9;
case kVK_F11: return ImGuiKey_F11;
case kVK_F13: return ImGuiKey_PrintScreen;
// case kVK_F16: return ImGuiKey_;
// case kVK_F14: return ImGuiKey_;
case kVK_F10: return ImGuiKey_F10;
case 0x6E: return ImGuiKey_Menu;
case kVK_F11: return ImGuiKey_F11;
case kVK_F12: return ImGuiKey_F12;
// case kVK_F15: return ImGuiKey_;
case kVK_F13: return ImGuiKey_F13;
case kVK_F14: return ImGuiKey_F14;
case kVK_F15: return ImGuiKey_F15;
case kVK_F16: return ImGuiKey_F16;
case kVK_F17: return ImGuiKey_F17;
case kVK_F18: return ImGuiKey_F18;
case kVK_F19: return ImGuiKey_F19;
case kVK_F20: return ImGuiKey_F20;
case 0x6E: return ImGuiKey_Menu;
case kVK_Help: return ImGuiKey_Insert;
case kVK_Home: return ImGuiKey_Home;
case kVK_PageUp: return ImGuiKey_PageUp;
case kVK_ForwardDelete: return ImGuiKey_Delete;
case kVK_F4: return ImGuiKey_F4;
case kVK_End: return ImGuiKey_End;
case kVK_F2: return ImGuiKey_F2;
case kVK_PageDown: return ImGuiKey_PageDown;
case kVK_F1: return ImGuiKey_F1;
case kVK_LeftArrow: return ImGuiKey_LeftArrow;
case kVK_RightArrow: return ImGuiKey_RightArrow;
case kVK_DownArrow: return ImGuiKey_DownArrow;
@ -387,15 +397,21 @@ IMGUI_IMPL_API void ImGui_ImplOSX_NewFrame(void* _Nullable view) {
bool ImGui_ImplOSX_Init(NSView* view)
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_CreateBackendData();
io.BackendPlatformUserData = (void*)bd;
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
// Setup backend capabilities flags
ImGui_ImplOSX_Data* bd = IM_NEW(ImGui_ImplOSX_Data)();
io.BackendPlatformUserData = (void*)bd;
io.BackendPlatformName = "imgui_impl_osx";
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
//io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
io.BackendPlatformName = "imgui_impl_osx";
bd->Observer = [ImGuiObserver new];
bd->Window = view.window ?: NSApp.orderedWindows.firstObject;
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->PlatformHandle = main_viewport->PlatformHandleRaw = (__bridge_retained void*)bd->Window;
// Load cursors. Some of them are undocumented.
bd->MouseCursorHidden = false;
@ -412,14 +428,14 @@ bool ImGui_ImplOSX_Init(NSView* view)
// Note that imgui.cpp also include default OSX clipboard handlers which can be enabled
// by adding '#define IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS' in imconfig.h and adding '-framework ApplicationServices' to your linker command-line.
// Since we are already in ObjC land here, it is easy for us to add a clipboard handler using the NSPasteboard api.
io.SetClipboardTextFn = [](void*, const char* str) -> void
platform_io.Platform_SetClipboardTextFn = [](ImGuiContext*, const char* str) -> void
{
NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
[pasteboard declareTypes:[NSArray arrayWithObject:NSPasteboardTypeString] owner:nil];
[pasteboard setString:[NSString stringWithUTF8String:str] forType:NSPasteboardTypeString];
};
io.GetClipboardTextFn = [](void*) -> const char*
platform_io.Platform_GetClipboardTextFn = [](ImGuiContext*) -> const char*
{
NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
NSString* available = [pasteboard availableTypeFromArray: [NSArray arrayWithObject:NSPasteboardTypeString]];
@ -454,7 +470,7 @@ bool ImGui_ImplOSX_Init(NSView* view)
[view addSubview:bd->KeyEventResponder];
ImGui_ImplOSX_AddTrackingArea(view);
io.SetPlatformImeDataFn = [](ImGuiViewport* viewport, ImGuiPlatformImeData* data) -> void
platform_io.Platform_SetImeDataFn = [](ImGuiContext*, ImGuiViewport* viewport, ImGuiPlatformImeData* data) -> void
{
ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
if (data->WantVisible)
@ -529,7 +545,6 @@ static void ImGui_ImplOSX_UpdateMouseCursor()
static void ImGui_ImplOSX_UpdateGamepads()
{
ImGuiIO& io = ImGui::GetIO();
memset(io.NavInputs, 0, sizeof(io.NavInputs));
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
return;
@ -596,6 +611,7 @@ static void ImGui_ImplOSX_UpdateImePosWithView(NSView* view)
void ImGui_ImplOSX_NewFrame(NSView* view)
{
ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOSX_Init()?");
ImGuiIO& io = ImGui::GetIO();
// Setup display size
@ -801,3 +817,7 @@ static void ImGui_ImplOSX_AddTrackingArea(NSView* _Nonnull view)
return event;
}];
}
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

306
backends/imgui_impl_sdl2.cpp
View File

@ -13,11 +13,26 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
// 2024-09-09: use SDL_Vulkan_GetDrawableSize() when available. (#7967, #3190)
// 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
// - io.PlatformOpenInShellFn -> platform_io.Platform_OpenInShellFn
// - io.PlatformSetImeDataFn -> platform_io.Platform_SetImeDataFn
// 2024-08-19: Storing SDL's Uint32 WindowID inside ImGuiViewport::PlatformHandle instead of SDL_Window*.
// 2024-08-19: ImGui_ImplSDL2_ProcessEvent() now ignores events intended for other SDL windows. (#7853)
// 2024-07-02: Emscripten: Added io.PlatformOpenInShellFn() handler for Emscripten versions.
// 2024-07-02: Update for io.SetPlatformImeDataFn() -> io.PlatformSetImeDataFn() renaming in main library.
// 2024-02-14: Inputs: Handle gamepad disconnection. Added ImGui_ImplSDL2_SetGamepadMode().
// 2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F24 function keys, app back/forward keys.
// 2023-04-06: Inputs: Avoid calling SDL_StartTextInput()/SDL_StopTextInput() as they don't only pertain to IME. It's unclear exactly what their relation is to IME. (#6306)
// 2023-04-04: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_TouchScreen. (#2702)
// 2023-02-23: Accept SDL_GetPerformanceCounter() not returning a monotonically increasing value. (#6189, #6114, #3644)
@ -73,6 +88,7 @@
// 2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_sdl2.h"
// Clang warnings with -Weverything
@ -84,9 +100,12 @@
// SDL
#include <SDL.h>
#include <SDL_syswm.h>
#if defined(__APPLE__)
#ifdef __APPLE__
#include <TargetConditionals.h>
#endif
#ifdef __EMSCRIPTEN__
#include <emscripten/em_js.h>
#endif
#if SDL_VERSION_ATLEAST(2,0,4) && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__) && !(defined(__APPLE__) && TARGET_OS_IOS) && !defined(__amigaos4__)
#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 1
@ -94,20 +113,31 @@
#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 0
#endif
#define SDL_HAS_VULKAN SDL_VERSION_ATLEAST(2,0,6)
#if SDL_HAS_VULKAN
extern "C" { extern DECLSPEC void SDLCALL SDL_Vulkan_GetDrawableSize(SDL_Window* window, int* w, int* h); }
#endif
// SDL Data
struct ImGui_ImplSDL2_Data
{
SDL_Window* Window;
SDL_Renderer* Renderer;
Uint64 Time;
Uint32 MouseWindowID;
int MouseButtonsDown;
SDL_Cursor* MouseCursors[ImGuiMouseCursor_COUNT];
SDL_Cursor* LastMouseCursor;
int PendingMouseLeaveFrame;
char* ClipboardTextData;
bool MouseCanUseGlobalState;
SDL_Window* Window;
Uint32 WindowID;
SDL_Renderer* Renderer;
Uint64 Time;
char* ClipboardTextData;
// Mouse handling
Uint32 MouseWindowID;
int MouseButtonsDown;
SDL_Cursor* MouseCursors[ImGuiMouseCursor_COUNT];
SDL_Cursor* MouseLastCursor;
int MouseLastLeaveFrame;
bool MouseCanUseGlobalState;
// Gamepad handling
ImVector<SDL_GameController*> Gamepads;
ImGui_ImplSDL2_GamepadMode GamepadMode;
bool WantUpdateGamepadsList;
ImGui_ImplSDL2_Data() { memset((void*)this, 0, sizeof(*this)); }
};
@ -122,7 +152,7 @@ static ImGui_ImplSDL2_Data* ImGui_ImplSDL2_GetBackendData()
}
// Functions
static const char* ImGui_ImplSDL2_GetClipboardText(void*)
static const char* ImGui_ImplSDL2_GetClipboardText(ImGuiContext*)
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
if (bd->ClipboardTextData)
@ -131,13 +161,13 @@ static const char* ImGui_ImplSDL2_GetClipboardText(void*)
return bd->ClipboardTextData;
}
static void ImGui_ImplSDL2_SetClipboardText(void*, const char* text)
static void ImGui_ImplSDL2_SetClipboardText(ImGuiContext*, const char* text)
{
SDL_SetClipboardText(text);
}
// Note: native IME will only display if user calls SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1") _before_ SDL_CreateWindow().
static void ImGui_ImplSDL2_SetPlatformImeData(ImGuiViewport*, ImGuiPlatformImeData* data)
static void ImGui_ImplSDL2_PlatformSetImeData(ImGuiContext*, ImGuiViewport*, ImGuiPlatformImeData* data)
{
if (data->WantVisible)
{
@ -150,8 +180,9 @@ static void ImGui_ImplSDL2_SetPlatformImeData(ImGuiViewport*, ImGuiPlatformImeDa
}
}
static ImGuiKey ImGui_ImplSDL2_KeycodeToImGuiKey(int keycode)
static ImGuiKey ImGui_ImplSDL2_KeyEventToImGuiKey(SDL_Keycode keycode, SDL_Scancode scancode)
{
IM_UNUSED(scancode);
switch (keycode)
{
case SDLK_TAB: return ImGuiKey_Tab;
@ -259,6 +290,21 @@ static ImGuiKey ImGui_ImplSDL2_KeycodeToImGuiKey(int keycode)
case SDLK_F10: return ImGuiKey_F10;
case SDLK_F11: return ImGuiKey_F11;
case SDLK_F12: return ImGuiKey_F12;
case SDLK_F13: return ImGuiKey_F13;
case SDLK_F14: return ImGuiKey_F14;
case SDLK_F15: return ImGuiKey_F15;
case SDLK_F16: return ImGuiKey_F16;
case SDLK_F17: return ImGuiKey_F17;
case SDLK_F18: return ImGuiKey_F18;
case SDLK_F19: return ImGuiKey_F19;
case SDLK_F20: return ImGuiKey_F20;
case SDLK_F21: return ImGuiKey_F21;
case SDLK_F22: return ImGuiKey_F22;
case SDLK_F23: return ImGuiKey_F23;
case SDLK_F24: return ImGuiKey_F24;
case SDLK_AC_BACK: return ImGuiKey_AppBack;
case SDLK_AC_FORWARD: return ImGuiKey_AppForward;
default: break;
}
return ImGuiKey_None;
}
@ -272,6 +318,12 @@ static void ImGui_ImplSDL2_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
io.AddKeyEvent(ImGuiMod_Super, (sdl_key_mods & KMOD_GUI) != 0);
}
static ImGuiViewport* ImGui_ImplSDL2_GetViewportForWindowID(Uint32 window_id)
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
return (window_id == bd->WindowID) ? ImGui::GetMainViewport() : NULL;
}
// 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.
@ -279,13 +331,16 @@ static void ImGui_ImplSDL2_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
// If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDL2_Init()?");
ImGuiIO& io = ImGui::GetIO();
switch (event->type)
{
case SDL_MOUSEMOTION:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->motion.windowID) == NULL)
return false;
ImVec2 mouse_pos((float)event->motion.x, (float)event->motion.y);
io.AddMouseSourceEvent(event->motion.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
io.AddMousePosEvent(mouse_pos.x, mouse_pos.y);
@ -293,6 +348,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
}
case SDL_MOUSEWHEEL:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->wheel.windowID) == NULL)
return false;
//IMGUI_DEBUG_LOG("wheel %.2f %.2f, precise %.2f %.2f\n", (float)event->wheel.x, (float)event->wheel.y, event->wheel.preciseX, event->wheel.preciseY);
#if SDL_VERSION_ATLEAST(2,0,18) // If this fails to compile on Emscripten: update to latest Emscripten!
float wheel_x = -event->wheel.preciseX;
@ -311,6 +368,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->button.windowID) == NULL)
return false;
int mouse_button = -1;
if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
if (event->button.button == SDL_BUTTON_RIGHT) { mouse_button = 1; }
@ -326,20 +385,26 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
}
case SDL_TEXTINPUT:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->text.windowID) == NULL)
return false;
io.AddInputCharactersUTF8(event->text.text);
return true;
}
case SDL_KEYDOWN:
case SDL_KEYUP:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->key.windowID) == NULL)
return false;
ImGui_ImplSDL2_UpdateKeyModifiers((SDL_Keymod)event->key.keysym.mod);
ImGuiKey key = ImGui_ImplSDL2_KeycodeToImGuiKey(event->key.keysym.sym);
ImGuiKey key = ImGui_ImplSDL2_KeyEventToImGuiKey(event->key.keysym.sym, event->key.keysym.scancode);
io.AddKeyEvent(key, (event->type == SDL_KEYDOWN));
io.SetKeyEventNativeData(key, event->key.keysym.sym, event->key.keysym.scancode, event->key.keysym.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
return true;
}
case SDL_WINDOWEVENT:
{
if (ImGui_ImplSDL2_GetViewportForWindowID(event->window.windowID) == NULL)
return false;
// - When capturing mouse, SDL will send a bunch of conflicting LEAVE/ENTER event on every mouse move, but the final ENTER tends to be right.
// - However we won't get a correct LEAVE event for a captured window.
// - In some cases, when detaching a window from main viewport SDL may send SDL_WINDOWEVENT_ENTER one frame too late,
@ -349,23 +414,34 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
if (window_event == SDL_WINDOWEVENT_ENTER)
{
bd->MouseWindowID = event->window.windowID;
bd->PendingMouseLeaveFrame = 0;
bd->MouseLastLeaveFrame = 0;
}
if (window_event == SDL_WINDOWEVENT_LEAVE)
bd->PendingMouseLeaveFrame = ImGui::GetFrameCount() + 1;
bd->MouseLastLeaveFrame = ImGui::GetFrameCount() + 1;
if (window_event == SDL_WINDOWEVENT_FOCUS_GAINED)
io.AddFocusEvent(true);
else if (event->window.event == SDL_WINDOWEVENT_FOCUS_LOST)
io.AddFocusEvent(false);
return true;
}
case SDL_CONTROLLERDEVICEADDED:
case SDL_CONTROLLERDEVICEREMOVED:
{
bd->WantUpdateGamepadsList = true;
return true;
}
}
return false;
}
static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer)
#ifdef __EMSCRIPTEN__
EM_JS(void, ImGui_ImplSDL2_EmscriptenOpenURL, (char const* url), { url = url ? UTF8ToString(url) : null; if (url) window.open(url, '_blank'); });
#endif
static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void* sdl_gl_context)
{
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
// Check and store if we are on a SDL backend that supports global mouse position
@ -387,13 +463,22 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
bd->Window = window;
bd->WindowID = SDL_GetWindowID(window);
bd->Renderer = renderer;
bd->MouseCanUseGlobalState = mouse_can_use_global_state;
io.SetClipboardTextFn = ImGui_ImplSDL2_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplSDL2_GetClipboardText;
io.ClipboardUserData = nullptr;
io.SetPlatformImeDataFn = ImGui_ImplSDL2_SetPlatformImeData;
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_SetClipboardTextFn = ImGui_ImplSDL2_SetClipboardText;
platform_io.Platform_GetClipboardTextFn = ImGui_ImplSDL2_GetClipboardText;
platform_io.Platform_ClipboardUserData = nullptr;
platform_io.Platform_SetImeDataFn = ImGui_ImplSDL2_PlatformSetImeData;
#ifdef __EMSCRIPTEN__
platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplSDL2_EmscriptenOpenURL(url); return true; };
#endif
// Gamepad handling
bd->GamepadMode = ImGui_ImplSDL2_GamepadMode_AutoFirst;
bd->WantUpdateGamepadsList = true;
// Load mouse cursors
bd->MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
@ -409,6 +494,7 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer)
// Set platform dependent data in viewport
// Our mouse update function expect PlatformHandle to be filled for the main viewport
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->PlatformHandle = (void*)(intptr_t)bd->WindowID;
main_viewport->PlatformHandleRaw = nullptr;
SDL_SysWMinfo info;
SDL_VERSION(&info.version);
@ -442,13 +528,13 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer)
SDL_SetHint(SDL_HINT_MOUSE_AUTO_CAPTURE, "0");
#endif
(void)sdl_gl_context; // Unused in 'master' branch.
return true;
}
bool ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context)
{
IM_UNUSED(sdl_gl_context); // Viewport branch will need this.
return ImGui_ImplSDL2_Init(window, nullptr);
return ImGui_ImplSDL2_Init(window, nullptr, sdl_gl_context);
}
bool ImGui_ImplSDL2_InitForVulkan(SDL_Window* window)
@ -456,7 +542,7 @@ bool ImGui_ImplSDL2_InitForVulkan(SDL_Window* window)
#if !SDL_HAS_VULKAN
IM_ASSERT(0 && "Unsupported");
#endif
return ImGui_ImplSDL2_Init(window, nullptr);
return ImGui_ImplSDL2_Init(window, nullptr, nullptr);
}
bool ImGui_ImplSDL2_InitForD3D(SDL_Window* window)
@ -464,19 +550,26 @@ bool ImGui_ImplSDL2_InitForD3D(SDL_Window* window)
#if !defined(_WIN32)
IM_ASSERT(0 && "Unsupported");
#endif
return ImGui_ImplSDL2_Init(window, nullptr);
return ImGui_ImplSDL2_Init(window, nullptr, nullptr);
}
bool ImGui_ImplSDL2_InitForMetal(SDL_Window* window)
{
return ImGui_ImplSDL2_Init(window, nullptr);
return ImGui_ImplSDL2_Init(window, nullptr, nullptr);
}
bool ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer)
{
return ImGui_ImplSDL2_Init(window, renderer);
return ImGui_ImplSDL2_Init(window, renderer, nullptr);
}
bool ImGui_ImplSDL2_InitForOther(SDL_Window* window)
{
return ImGui_ImplSDL2_Init(window, nullptr, nullptr);
}
static void ImGui_ImplSDL2_CloseGamepads();
void ImGui_ImplSDL2_Shutdown()
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
@ -487,7 +580,7 @@ void ImGui_ImplSDL2_Shutdown()
SDL_free(bd->ClipboardTextData);
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
SDL_FreeCursor(bd->MouseCursors[cursor_n]);
bd->LastMouseCursor = nullptr;
ImGui_ImplSDL2_CloseGamepads();
io.BackendPlatformName = nullptr;
io.BackendPlatformUserData = nullptr;
@ -543,65 +636,124 @@ static void ImGui_ImplSDL2_UpdateMouseCursor()
{
// Show OS mouse cursor
SDL_Cursor* expected_cursor = bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow];
if (bd->LastMouseCursor != expected_cursor)
if (bd->MouseLastCursor != expected_cursor)
{
SDL_SetCursor(expected_cursor); // SDL function doesn't have an early out (see #6113)
bd->LastMouseCursor = expected_cursor;
bd->MouseLastCursor = expected_cursor;
}
SDL_ShowCursor(SDL_TRUE);
}
}
static void ImGui_ImplSDL2_CloseGamepads()
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
if (bd->GamepadMode != ImGui_ImplSDL2_GamepadMode_Manual)
for (SDL_GameController* gamepad : bd->Gamepads)
SDL_GameControllerClose(gamepad);
bd->Gamepads.resize(0);
}
void ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode mode, struct _SDL_GameController** manual_gamepads_array, int manual_gamepads_count)
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
ImGui_ImplSDL2_CloseGamepads();
if (mode == ImGui_ImplSDL2_GamepadMode_Manual)
{
IM_ASSERT(manual_gamepads_array != nullptr && manual_gamepads_count > 0);
for (int n = 0; n < manual_gamepads_count; n++)
bd->Gamepads.push_back(manual_gamepads_array[n]);
}
else
{
IM_ASSERT(manual_gamepads_array == nullptr && manual_gamepads_count <= 0);
bd->WantUpdateGamepadsList = true;
}
bd->GamepadMode = mode;
}
static void ImGui_ImplSDL2_UpdateGamepadButton(ImGui_ImplSDL2_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GameControllerButton button_no)
{
bool merged_value = false;
for (SDL_GameController* gamepad : bd->Gamepads)
merged_value |= SDL_GameControllerGetButton(gamepad, button_no) != 0;
io.AddKeyEvent(key, merged_value);
}
static inline float Saturate(float v) { return v < 0.0f ? 0.0f : v > 1.0f ? 1.0f : v; }
static void ImGui_ImplSDL2_UpdateGamepadAnalog(ImGui_ImplSDL2_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GameControllerAxis axis_no, float v0, float v1)
{
float merged_value = 0.0f;
for (SDL_GameController* gamepad : bd->Gamepads)
{
float vn = Saturate((float)(SDL_GameControllerGetAxis(gamepad, axis_no) - v0) / (float)(v1 - v0));
if (merged_value < vn)
merged_value = vn;
}
io.AddKeyAnalogEvent(key, merged_value > 0.1f, merged_value);
}
static void ImGui_ImplSDL2_UpdateGamepads()
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
return;
// Get gamepad
// Update list of controller(s) to use
if (bd->WantUpdateGamepadsList && bd->GamepadMode != ImGui_ImplSDL2_GamepadMode_Manual)
{
ImGui_ImplSDL2_CloseGamepads();
int joystick_count = SDL_NumJoysticks();
for (int n = 0; n < joystick_count; n++)
if (SDL_IsGameController(n))
if (SDL_GameController* gamepad = SDL_GameControllerOpen(n))
{
bd->Gamepads.push_back(gamepad);
if (bd->GamepadMode == ImGui_ImplSDL2_GamepadMode_AutoFirst)
break;
}
bd->WantUpdateGamepadsList = false;
}
// FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
return;
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
SDL_GameController* game_controller = SDL_GameControllerOpen(0);
if (!game_controller)
if (bd->Gamepads.Size == 0)
return;
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
// Update gamepad inputs
#define IM_SATURATE(V) (V < 0.0f ? 0.0f : V > 1.0f ? 1.0f : V)
#define MAP_BUTTON(KEY_NO, BUTTON_NO) { io.AddKeyEvent(KEY_NO, SDL_GameControllerGetButton(game_controller, BUTTON_NO) != 0); }
#define MAP_ANALOG(KEY_NO, AXIS_NO, V0, V1) { float vn = (float)(SDL_GameControllerGetAxis(game_controller, AXIS_NO) - V0) / (float)(V1 - V0); vn = IM_SATURATE(vn); io.AddKeyAnalogEvent(KEY_NO, vn > 0.1f, vn); }
const int thumb_dead_zone = 8000; // SDL_gamecontroller.h suggests using this value.
MAP_BUTTON(ImGuiKey_GamepadStart, SDL_CONTROLLER_BUTTON_START);
MAP_BUTTON(ImGuiKey_GamepadBack, SDL_CONTROLLER_BUTTON_BACK);
MAP_BUTTON(ImGuiKey_GamepadFaceLeft, SDL_CONTROLLER_BUTTON_X); // Xbox X, PS Square
MAP_BUTTON(ImGuiKey_GamepadFaceRight, SDL_CONTROLLER_BUTTON_B); // Xbox B, PS Circle
MAP_BUTTON(ImGuiKey_GamepadFaceUp, SDL_CONTROLLER_BUTTON_Y); // Xbox Y, PS Triangle
MAP_BUTTON(ImGuiKey_GamepadFaceDown, SDL_CONTROLLER_BUTTON_A); // Xbox A, PS Cross
MAP_BUTTON(ImGuiKey_GamepadDpadLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT);
MAP_BUTTON(ImGuiKey_GamepadDpadRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT);
MAP_BUTTON(ImGuiKey_GamepadDpadUp, SDL_CONTROLLER_BUTTON_DPAD_UP);
MAP_BUTTON(ImGuiKey_GamepadDpadDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN);
MAP_BUTTON(ImGuiKey_GamepadL1, SDL_CONTROLLER_BUTTON_LEFTSHOULDER);
MAP_BUTTON(ImGuiKey_GamepadR1, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);
MAP_ANALOG(ImGuiKey_GamepadL2, SDL_CONTROLLER_AXIS_TRIGGERLEFT, 0.0f, 32767);
MAP_ANALOG(ImGuiKey_GamepadR2, SDL_CONTROLLER_AXIS_TRIGGERRIGHT, 0.0f, 32767);
MAP_BUTTON(ImGuiKey_GamepadL3, SDL_CONTROLLER_BUTTON_LEFTSTICK);
MAP_BUTTON(ImGuiKey_GamepadR3, SDL_CONTROLLER_BUTTON_RIGHTSTICK);
MAP_ANALOG(ImGuiKey_GamepadLStickLeft, SDL_CONTROLLER_AXIS_LEFTX, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadLStickRight, SDL_CONTROLLER_AXIS_LEFTX, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiKey_GamepadLStickUp, SDL_CONTROLLER_AXIS_LEFTY, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadLStickDown, SDL_CONTROLLER_AXIS_LEFTY, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiKey_GamepadRStickLeft, SDL_CONTROLLER_AXIS_RIGHTX, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadRStickRight, SDL_CONTROLLER_AXIS_RIGHTX, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiKey_GamepadRStickUp, SDL_CONTROLLER_AXIS_RIGHTY, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadRStickDown, SDL_CONTROLLER_AXIS_RIGHTY, +thumb_dead_zone, +32767);
#undef MAP_BUTTON
#undef MAP_ANALOG
const int thumb_dead_zone = 8000; // SDL_gamecontroller.h suggests using this value.
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadStart, SDL_CONTROLLER_BUTTON_START);
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadBack, SDL_CONTROLLER_BUTTON_BACK);
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceLeft, SDL_CONTROLLER_BUTTON_X); // Xbox X, PS Square
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceRight, SDL_CONTROLLER_BUTTON_B); // Xbox B, PS Circle
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceUp, SDL_CONTROLLER_BUTTON_Y); // Xbox Y, PS Triangle
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceDown, SDL_CONTROLLER_BUTTON_A); // Xbox A, PS Cross
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT);
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT);
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadUp, SDL_CONTROLLER_BUTTON_DPAD_UP);
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN);
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL1, SDL_CONTROLLER_BUTTON_LEFTSHOULDER);
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR1, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadL2, SDL_CONTROLLER_AXIS_TRIGGERLEFT, 0.0f, 32767);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadR2, SDL_CONTROLLER_AXIS_TRIGGERRIGHT, 0.0f, 32767);
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL3, SDL_CONTROLLER_BUTTON_LEFTSTICK);
ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR3, SDL_CONTROLLER_BUTTON_RIGHTSTICK);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickLeft, SDL_CONTROLLER_AXIS_LEFTX, -thumb_dead_zone, -32768);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickRight, SDL_CONTROLLER_AXIS_LEFTX, +thumb_dead_zone, +32767);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickUp, SDL_CONTROLLER_AXIS_LEFTY, -thumb_dead_zone, -32768);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickDown, SDL_CONTROLLER_AXIS_LEFTY, +thumb_dead_zone, +32767);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickLeft, SDL_CONTROLLER_AXIS_RIGHTX, -thumb_dead_zone, -32768);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickRight, SDL_CONTROLLER_AXIS_RIGHTX, +thumb_dead_zone, +32767);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickUp, SDL_CONTROLLER_AXIS_RIGHTY, -thumb_dead_zone, -32768);
ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickDown, SDL_CONTROLLER_AXIS_RIGHTY, +thumb_dead_zone, +32767);
}
void ImGui_ImplSDL2_NewFrame()
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDL2_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDL2_Init()?");
ImGuiIO& io = ImGui::GetIO();
// Setup display size (every frame to accommodate for window resizing)
@ -612,6 +764,10 @@ void ImGui_ImplSDL2_NewFrame()
w = h = 0;
if (bd->Renderer != nullptr)
SDL_GetRendererOutputSize(bd->Renderer, &display_w, &display_h);
#if SDL_HAS_VULKAN
else if (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_VULKAN)
SDL_Vulkan_GetDrawableSize(bd->Window, &display_w, &display_h);
#endif
else
SDL_GL_GetDrawableSize(bd->Window, &display_w, &display_h);
io.DisplaySize = ImVec2((float)w, (float)h);
@ -627,10 +783,10 @@ void ImGui_ImplSDL2_NewFrame()
io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / frequency) : (float)(1.0f / 60.0f);
bd->Time = current_time;
if (bd->PendingMouseLeaveFrame && bd->PendingMouseLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
if (bd->MouseLastLeaveFrame && bd->MouseLastLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
{
bd->MouseWindowID = 0;
bd->PendingMouseLeaveFrame = 0;
bd->MouseLastLeaveFrame = 0;
io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
}
@ -641,6 +797,10 @@ void ImGui_ImplSDL2_NewFrame()
ImGui_ImplSDL2_UpdateGamepads();
}
//-----------------------------------------------------------------------------
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#endif // #ifndef IMGUI_DISABLE

20
backends/imgui_impl_sdl2.h
View File

@ -12,25 +12,35 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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);
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
static inline void ImGui_ImplSDL2_NewFrame(SDL_Window*) { ImGui_ImplSDL2_NewFrame(); } // 1.84: removed unnecessary parameter
#endif
// 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 = NULL, int manual_gamepads_count = -1);
#endif // #ifndef IMGUI_DISABLE

480
backends/imgui_impl_sdl3.cpp
View File

@ -1,7 +1,8 @@
// dear imgui: Platform Backend for SDL3 (*EXPERIMENTAL*)
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// (Info: SDL3 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
// (IMPORTANT: SDL 3.0.0 is NOT YET RELEASED. IT IS POSSIBLE THAT ITS SPECS/API WILL CHANGE BEFORE RELEASE)
// (**IMPORTANT: SDL 3.0.0 is NOT YET RELEASED AND CURRENTLY HAS A FAST CHANGING API. THIS CODE BREAKS OFTEN AS SDL3 CHANGES.**)
// Implemented features:
// [X] Platform: Clipboard support.
@ -9,16 +10,37 @@
// [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 will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// Missing features:
// [x] Platform: Basic 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
// 2024-09-03: Update for SDL3 api changes: SDL_GetGamepads() memory ownership revert. (#7918, #7898, #7807)
// 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
// - io.PlatformSetImeDataFn -> platform_io.Platform_SetImeDataFn
// 2024-08-19: Storing SDL_WindowID inside ImGuiViewport::PlatformHandle instead of SDL_Window*.
// 2024-08-19: ImGui_ImplSDL3_ProcessEvent() now ignores events intended for other SDL windows. (#7853)
// 2024-07-22: Update for SDL3 api changes: SDL_GetGamepads() memory ownership change. (#7807)
// 2024-07-18: Update for SDL3 api changes: SDL_GetClipboardText() memory ownership change. (#7801)
// 2024-07-15: Update for SDL3 api changes: SDL_GetProperty() change to SDL_GetPointerProperty(). (#7794)
// 2024-07-02: Update for SDL3 api changes: SDLK_x renames and SDLK_KP_x removals (#7761, #7762).
// 2024-07-01: Update for SDL3 api changes: SDL_SetTextInputRect() changed to SDL_SetTextInputArea().
// 2024-06-26: Update for SDL3 api changes: SDL_StartTextInput()/SDL_StopTextInput()/SDL_SetTextInputRect() functions signatures.
// 2024-06-24: Update for SDL3 api changes: SDL_EVENT_KEY_DOWN/SDL_EVENT_KEY_UP contents.
// 2024-06-03; Update for SDL3 api changes: SDL_SYSTEM_CURSOR_ renames.
// 2024-05-15: Update for SDL3 api changes: SDLK_ renames.
// 2024-04-15: Inputs: Re-enable calling SDL_StartTextInput()/SDL_StopTextInput() as SDL3 no longer enables it by default and should play nicer with IME.
// 2024-02-13: Inputs: Fixed gamepad support. Handle gamepad disconnection. Added ImGui_ImplSDL3_SetGamepadMode().
// 2023-11-13: Updated for recent SDL3 API changes.
// 2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F24 function keys, app back/forward keys.
// 2023-05-04: Fixed build on Emscripten/iOS/Android. (#6391)
// 2023-04-06: Inputs: Avoid calling SDL_StartTextInput()/SDL_StopTextInput() as they don't only pertain to IME. It's unclear exactly what their relation is to IME. (#6306)
// 2023-04-04: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_TouchScreen. (#2702)
@ -26,6 +48,7 @@
// 2023-02-07: Forked "imgui_impl_sdl2" into "imgui_impl_sdl3". Removed version checks for old feature. Refer to imgui_impl_sdl2.cpp for older changelog.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_sdl3.h"
// Clang warnings with -Weverything
@ -36,10 +59,15 @@
// SDL
#include <SDL3/SDL.h>
#include <SDL3/SDL_syswm.h>
#if defined(__APPLE__)
#include <TargetConditionals.h>
#endif
#ifdef _WIN32
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#endif
#if !defined(__EMSCRIPTEN__) && !defined(__ANDROID__) && !(defined(__APPLE__) && TARGET_OS_IOS) && !defined(__amigaos4__)
#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 1
@ -47,19 +75,38 @@
#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 0
#endif
// FIXME-LEGACY: remove when SDL 3.1.3 preview is released.
#ifndef SDLK_APOSTROPHE
#define SDLK_APOSTROPHE SDLK_QUOTE
#endif
#ifndef SDLK_GRAVE
#define SDLK_GRAVE SDLK_BACKQUOTE
#endif
// SDL Data
struct ImGui_ImplSDL3_Data
{
SDL_Window* Window;
SDL_Renderer* Renderer;
Uint64 Time;
Uint32 MouseWindowID;
int MouseButtonsDown;
SDL_Cursor* MouseCursors[ImGuiMouseCursor_COUNT];
SDL_Cursor* LastMouseCursor;
int PendingMouseLeaveFrame;
char* ClipboardTextData;
bool MouseCanUseGlobalState;
SDL_Window* Window;
SDL_WindowID WindowID;
SDL_Renderer* Renderer;
Uint64 Time;
char* ClipboardTextData;
// IME handling
SDL_Window* ImeWindow;
// Mouse handling
Uint32 MouseWindowID;
int MouseButtonsDown;
SDL_Cursor* MouseCursors[ImGuiMouseCursor_COUNT];
SDL_Cursor* MouseLastCursor;
int MousePendingLeaveFrame;
bool MouseCanUseGlobalState;
// Gamepad handling
ImVector<SDL_Gamepad*> Gamepads;
ImGui_ImplSDL3_GamepadMode GamepadMode;
bool WantUpdateGamepadsList;
ImGui_ImplSDL3_Data() { memset((void*)this, 0, sizeof(*this)); }
};
@ -74,22 +121,31 @@ static ImGui_ImplSDL3_Data* ImGui_ImplSDL3_GetBackendData()
}
// Functions
static const char* ImGui_ImplSDL3_GetClipboardText(void*)
static const char* ImGui_ImplSDL3_GetClipboardText(ImGuiContext*)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
if (bd->ClipboardTextData)
SDL_free(bd->ClipboardTextData);
bd->ClipboardTextData = SDL_GetClipboardText();
const char* sdl_clipboard_text = SDL_GetClipboardText();
bd->ClipboardTextData = sdl_clipboard_text ? SDL_strdup(sdl_clipboard_text) : NULL;
return bd->ClipboardTextData;
}
static void ImGui_ImplSDL3_SetClipboardText(void*, const char* text)
static void ImGui_ImplSDL3_SetClipboardText(ImGuiContext*, const char* text)
{
SDL_SetClipboardText(text);
}
static void ImGui_ImplSDL3_SetPlatformImeData(ImGuiViewport*, ImGuiPlatformImeData* data)
static void ImGui_ImplSDL3_PlatformSetImeData(ImGuiContext*, ImGuiViewport* viewport, ImGuiPlatformImeData* data)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
SDL_WindowID window_id = (SDL_WindowID)(intptr_t)viewport->PlatformHandle;
SDL_Window* window = SDL_GetWindowFromID(window_id);
if ((data->WantVisible == false || bd->ImeWindow != window) && bd->ImeWindow != NULL)
{
SDL_StopTextInput(bd->ImeWindow);
bd->ImeWindow = nullptr;
}
if (data->WantVisible)
{
SDL_Rect r;
@ -97,12 +153,36 @@ static void ImGui_ImplSDL3_SetPlatformImeData(ImGuiViewport*, ImGuiPlatformImeDa
r.y = (int)data->InputPos.y;
r.w = 1;
r.h = (int)data->InputLineHeight;
SDL_SetTextInputRect(&r);
SDL_SetTextInputArea(window, &r, 0);
SDL_StartTextInput(window);
bd->ImeWindow = window;
}
}
static ImGuiKey ImGui_ImplSDL3_KeycodeToImGuiKey(int keycode)
static ImGuiKey ImGui_ImplSDL3_KeyEventToImGuiKey(SDL_Keycode keycode, SDL_Scancode scancode)
{
// Keypad doesn't have individual key values in SDL3
switch (scancode)
{
case SDL_SCANCODE_KP_0: return ImGuiKey_Keypad0;
case SDL_SCANCODE_KP_1: return ImGuiKey_Keypad1;
case SDL_SCANCODE_KP_2: return ImGuiKey_Keypad2;
case SDL_SCANCODE_KP_3: return ImGuiKey_Keypad3;
case SDL_SCANCODE_KP_4: return ImGuiKey_Keypad4;
case SDL_SCANCODE_KP_5: return ImGuiKey_Keypad5;
case SDL_SCANCODE_KP_6: return ImGuiKey_Keypad6;
case SDL_SCANCODE_KP_7: return ImGuiKey_Keypad7;
case SDL_SCANCODE_KP_8: return ImGuiKey_Keypad8;
case SDL_SCANCODE_KP_9: return ImGuiKey_Keypad9;
case SDL_SCANCODE_KP_PERIOD: return ImGuiKey_KeypadDecimal;
case SDL_SCANCODE_KP_DIVIDE: return ImGuiKey_KeypadDivide;
case SDL_SCANCODE_KP_MULTIPLY: return ImGuiKey_KeypadMultiply;
case SDL_SCANCODE_KP_MINUS: return ImGuiKey_KeypadSubtract;
case SDL_SCANCODE_KP_PLUS: return ImGuiKey_KeypadAdd;
case SDL_SCANCODE_KP_ENTER: return ImGuiKey_KeypadEnter;
case SDL_SCANCODE_KP_EQUALS: return ImGuiKey_KeypadEqual;
default: break;
}
switch (keycode)
{
case SDLK_TAB: return ImGuiKey_Tab;
@ -120,7 +200,7 @@ static ImGuiKey ImGui_ImplSDL3_KeycodeToImGuiKey(int keycode)
case SDLK_SPACE: return ImGuiKey_Space;
case SDLK_RETURN: return ImGuiKey_Enter;
case SDLK_ESCAPE: return ImGuiKey_Escape;
case SDLK_QUOTE: return ImGuiKey_Apostrophe;
case SDLK_APOSTROPHE: return ImGuiKey_Apostrophe;
case SDLK_COMMA: return ImGuiKey_Comma;
case SDLK_MINUS: return ImGuiKey_Minus;
case SDLK_PERIOD: return ImGuiKey_Period;
@ -130,29 +210,12 @@ static ImGuiKey ImGui_ImplSDL3_KeycodeToImGuiKey(int keycode)
case SDLK_LEFTBRACKET: return ImGuiKey_LeftBracket;
case SDLK_BACKSLASH: return ImGuiKey_Backslash;
case SDLK_RIGHTBRACKET: return ImGuiKey_RightBracket;
case SDLK_BACKQUOTE: return ImGuiKey_GraveAccent;
case SDLK_GRAVE: return ImGuiKey_GraveAccent;
case SDLK_CAPSLOCK: return ImGuiKey_CapsLock;
case SDLK_SCROLLLOCK: return ImGuiKey_ScrollLock;
case SDLK_NUMLOCKCLEAR: return ImGuiKey_NumLock;
case SDLK_PRINTSCREEN: return ImGuiKey_PrintScreen;
case SDLK_PAUSE: return ImGuiKey_Pause;
case SDLK_KP_0: return ImGuiKey_Keypad0;
case SDLK_KP_1: return ImGuiKey_Keypad1;
case SDLK_KP_2: return ImGuiKey_Keypad2;
case SDLK_KP_3: return ImGuiKey_Keypad3;
case SDLK_KP_4: return ImGuiKey_Keypad4;
case SDLK_KP_5: return ImGuiKey_Keypad5;
case SDLK_KP_6: return ImGuiKey_Keypad6;
case SDLK_KP_7: return ImGuiKey_Keypad7;
case SDLK_KP_8: return ImGuiKey_Keypad8;
case SDLK_KP_9: return ImGuiKey_Keypad9;
case SDLK_KP_PERIOD: return ImGuiKey_KeypadDecimal;
case SDLK_KP_DIVIDE: return ImGuiKey_KeypadDivide;
case SDLK_KP_MULTIPLY: return ImGuiKey_KeypadMultiply;
case SDLK_KP_MINUS: return ImGuiKey_KeypadSubtract;
case SDLK_KP_PLUS: return ImGuiKey_KeypadAdd;
case SDLK_KP_ENTER: return ImGuiKey_KeypadEnter;
case SDLK_KP_EQUALS: return ImGuiKey_KeypadEqual;
case SDLK_LCTRL: return ImGuiKey_LeftCtrl;
case SDLK_LSHIFT: return ImGuiKey_LeftShift;
case SDLK_LALT: return ImGuiKey_LeftAlt;
@ -172,32 +235,32 @@ static ImGuiKey ImGui_ImplSDL3_KeycodeToImGuiKey(int keycode)
case SDLK_7: return ImGuiKey_7;
case SDLK_8: return ImGuiKey_8;
case SDLK_9: return ImGuiKey_9;
case SDLK_a: return ImGuiKey_A;
case SDLK_b: return ImGuiKey_B;
case SDLK_c: return ImGuiKey_C;
case SDLK_d: return ImGuiKey_D;
case SDLK_e: return ImGuiKey_E;
case SDLK_f: return ImGuiKey_F;
case SDLK_g: return ImGuiKey_G;
case SDLK_h: return ImGuiKey_H;
case SDLK_i: return ImGuiKey_I;
case SDLK_j: return ImGuiKey_J;
case SDLK_k: return ImGuiKey_K;
case SDLK_l: return ImGuiKey_L;
case SDLK_m: return ImGuiKey_M;
case SDLK_n: return ImGuiKey_N;
case SDLK_o: return ImGuiKey_O;
case SDLK_p: return ImGuiKey_P;
case SDLK_q: return ImGuiKey_Q;
case SDLK_r: return ImGuiKey_R;
case SDLK_s: return ImGuiKey_S;
case SDLK_t: return ImGuiKey_T;
case SDLK_u: return ImGuiKey_U;
case SDLK_v: return ImGuiKey_V;
case SDLK_w: return ImGuiKey_W;
case SDLK_x: return ImGuiKey_X;
case SDLK_y: return ImGuiKey_Y;
case SDLK_z: return ImGuiKey_Z;
case SDLK_A: return ImGuiKey_A;
case SDLK_B: return ImGuiKey_B;
case SDLK_C: return ImGuiKey_C;
case SDLK_D: return ImGuiKey_D;
case SDLK_E: return ImGuiKey_E;
case SDLK_F: return ImGuiKey_F;
case SDLK_G: return ImGuiKey_G;
case SDLK_H: return ImGuiKey_H;
case SDLK_I: return ImGuiKey_I;
case SDLK_J: return ImGuiKey_J;
case SDLK_K: return ImGuiKey_K;
case SDLK_L: return ImGuiKey_L;
case SDLK_M: return ImGuiKey_M;
case SDLK_N: return ImGuiKey_N;
case SDLK_O: return ImGuiKey_O;
case SDLK_P: return ImGuiKey_P;
case SDLK_Q: return ImGuiKey_Q;
case SDLK_R: return ImGuiKey_R;
case SDLK_S: return ImGuiKey_S;
case SDLK_T: return ImGuiKey_T;
case SDLK_U: return ImGuiKey_U;
case SDLK_V: return ImGuiKey_V;
case SDLK_W: return ImGuiKey_W;
case SDLK_X: return ImGuiKey_X;
case SDLK_Y: return ImGuiKey_Y;
case SDLK_Z: return ImGuiKey_Z;
case SDLK_F1: return ImGuiKey_F1;
case SDLK_F2: return ImGuiKey_F2;
case SDLK_F3: return ImGuiKey_F3;
@ -210,6 +273,21 @@ static ImGuiKey ImGui_ImplSDL3_KeycodeToImGuiKey(int keycode)
case SDLK_F10: return ImGuiKey_F10;
case SDLK_F11: return ImGuiKey_F11;
case SDLK_F12: return ImGuiKey_F12;
case SDLK_F13: return ImGuiKey_F13;
case SDLK_F14: return ImGuiKey_F14;
case SDLK_F15: return ImGuiKey_F15;
case SDLK_F16: return ImGuiKey_F16;
case SDLK_F17: return ImGuiKey_F17;
case SDLK_F18: return ImGuiKey_F18;
case SDLK_F19: return ImGuiKey_F19;
case SDLK_F20: return ImGuiKey_F20;
case SDLK_F21: return ImGuiKey_F21;
case SDLK_F22: return ImGuiKey_F22;
case SDLK_F23: return ImGuiKey_F23;
case SDLK_F24: return ImGuiKey_F24;
case SDLK_AC_BACK: return ImGuiKey_AppBack;
case SDLK_AC_FORWARD: return ImGuiKey_AppForward;
default: break;
}
return ImGuiKey_None;
}
@ -223,6 +301,13 @@ static void ImGui_ImplSDL3_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
io.AddKeyEvent(ImGuiMod_Super, (sdl_key_mods & SDL_KMOD_GUI) != 0);
}
static ImGuiViewport* ImGui_ImplSDL3_GetViewportForWindowID(SDL_WindowID window_id)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
return (window_id == bd->WindowID) ? ImGui::GetMainViewport() : NULL;
}
// 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.
@ -230,13 +315,16 @@ static void ImGui_ImplSDL3_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
// If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDL3_Init()?");
ImGuiIO& io = ImGui::GetIO();
switch (event->type)
{
case SDL_EVENT_MOUSE_MOTION:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->motion.windowID) == NULL)
return false;
ImVec2 mouse_pos((float)event->motion.x, (float)event->motion.y);
io.AddMouseSourceEvent(event->motion.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
io.AddMousePosEvent(mouse_pos.x, mouse_pos.y);
@ -244,6 +332,8 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
}
case SDL_EVENT_MOUSE_WHEEL:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->wheel.windowID) == NULL)
return false;
//IMGUI_DEBUG_LOG("wheel %.2f %.2f, precise %.2f %.2f\n", (float)event->wheel.x, (float)event->wheel.y, event->wheel.preciseX, event->wheel.preciseY);
float wheel_x = -event->wheel.x;
float wheel_y = event->wheel.y;
@ -257,6 +347,8 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
case SDL_EVENT_MOUSE_BUTTON_DOWN:
case SDL_EVENT_MOUSE_BUTTON_UP:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->button.windowID) == NULL)
return false;
int mouse_button = -1;
if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
if (event->button.button == SDL_BUTTON_RIGHT) { mouse_button = 1; }
@ -272,22 +364,29 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
}
case SDL_EVENT_TEXT_INPUT:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->text.windowID) == NULL)
return false;
io.AddInputCharactersUTF8(event->text.text);
return true;
}
case SDL_EVENT_KEY_DOWN:
case SDL_EVENT_KEY_UP:
{
ImGui_ImplSDL3_UpdateKeyModifiers((SDL_Keymod)event->key.keysym.mod);
ImGuiKey key = ImGui_ImplSDL3_KeycodeToImGuiKey(event->key.keysym.sym);
if (ImGui_ImplSDL3_GetViewportForWindowID(event->key.windowID) == NULL)
return false;
//IMGUI_DEBUG_LOG("SDL_EVENT_KEY_%d: key=%d, scancode=%d, mod=%X\n", (event->type == SDL_EVENT_KEY_DOWN) ? "DOWN" : "UP", event->key.key, event->key.scancode, event->key.mod);
ImGui_ImplSDL3_UpdateKeyModifiers((SDL_Keymod)event->key.mod);
ImGuiKey key = ImGui_ImplSDL3_KeyEventToImGuiKey(event->key.key, event->key.scancode);
io.AddKeyEvent(key, (event->type == SDL_EVENT_KEY_DOWN));
io.SetKeyEventNativeData(key, event->key.keysym.sym, event->key.keysym.scancode, event->key.keysym.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
io.SetKeyEventNativeData(key, event->key.key, event->key.scancode, event->key.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
return true;
}
case SDL_EVENT_WINDOW_MOUSE_ENTER:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == NULL)
return false;
bd->MouseWindowID = event->window.windowID;
bd->PendingMouseLeaveFrame = 0;
bd->MousePendingLeaveFrame = 0;
return true;
}
// - In some cases, when detaching a window from main viewport SDL may send SDL_WINDOWEVENT_ENTER one frame too late,
@ -296,23 +395,46 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
// FIXME: Unconfirmed whether this is still needed with SDL3.
case SDL_EVENT_WINDOW_MOUSE_LEAVE:
{
bd->PendingMouseLeaveFrame = ImGui::GetFrameCount() + 1;
if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == NULL)
return false;
bd->MousePendingLeaveFrame = ImGui::GetFrameCount() + 1;
return true;
}
case SDL_EVENT_WINDOW_FOCUS_GAINED:
io.AddFocusEvent(true);
return true;
case SDL_EVENT_WINDOW_FOCUS_LOST:
io.AddFocusEvent(false);
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == NULL)
return false;
io.AddFocusEvent(event->type == SDL_EVENT_WINDOW_FOCUS_GAINED);
return true;
}
case SDL_EVENT_GAMEPAD_ADDED:
case SDL_EVENT_GAMEPAD_REMOVED:
{
bd->WantUpdateGamepadsList = true;
return true;
}
}
return false;
}
static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer)
static void ImGui_ImplSDL3_SetupPlatformHandles(ImGuiViewport* viewport, SDL_Window* window)
{
viewport->PlatformHandle = (void*)(intptr_t)SDL_GetWindowID(window);
viewport->PlatformHandleRaw = nullptr;
#if defined(_WIN32) && !defined(__WINRT__)
viewport->PlatformHandleRaw = (HWND)SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_WIN32_HWND_POINTER, nullptr);
#elif defined(__APPLE__) && defined(SDL_VIDEO_DRIVER_COCOA)
viewport->PlatformHandleRaw = SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_COCOA_WINDOW_POINTER, nullptr);
#endif
}
static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void* sdl_gl_context)
{
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
IM_UNUSED(sdl_gl_context); // Unused in this branch
// Check and store if we are on a SDL backend that supports global mouse position
// ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
@ -333,38 +455,34 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
bd->Window = window;
bd->WindowID = SDL_GetWindowID(window);
bd->Renderer = renderer;
bd->MouseCanUseGlobalState = mouse_can_use_global_state;
io.SetClipboardTextFn = ImGui_ImplSDL3_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplSDL3_GetClipboardText;
io.ClipboardUserData = nullptr;
io.SetPlatformImeDataFn = ImGui_ImplSDL3_SetPlatformImeData;
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_SetClipboardTextFn = ImGui_ImplSDL3_SetClipboardText;
platform_io.Platform_GetClipboardTextFn = ImGui_ImplSDL3_GetClipboardText;
platform_io.Platform_SetImeDataFn = ImGui_ImplSDL3_PlatformSetImeData;
// Gamepad handling
bd->GamepadMode = ImGui_ImplSDL3_GamepadMode_AutoFirst;
bd->WantUpdateGamepadsList = true;
// Load mouse cursors
bd->MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
bd->MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
bd->MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NO);
bd->MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_DEFAULT);
bd->MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_TEXT);
bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_MOVE);
bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NS_RESIZE);
bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_EW_RESIZE);
bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NESW_RESIZE);
bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NWSE_RESIZE);
bd->MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_POINTER);
bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NOT_ALLOWED);
// Set platform dependent data in viewport
// Our mouse update function expect PlatformHandle to be filled for the main viewport
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->PlatformHandleRaw = nullptr;
SDL_SysWMinfo info;
if (SDL_GetWindowWMInfo(window, &info, SDL_SYSWM_CURRENT_VERSION) == 0)
{
#if defined(SDL_ENABLE_SYSWM_WINDOWS)
main_viewport->PlatformHandleRaw = (void*)info.info.win.window;
#elif defined(__APPLE__) && defined(SDL_ENABLE_SYSWM_COCOA)
main_viewport->PlatformHandleRaw = (void*)info.info.cocoa.window;
#endif
}
ImGui_ImplSDL3_SetupPlatformHandles(main_viewport, window);
// From 2.0.5: Set SDL hint to receive mouse click events on window focus, otherwise SDL doesn't emit the event.
// Without this, when clicking to gain focus, our widgets wouldn't activate even though they showed as hovered.
@ -386,12 +504,12 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer)
bool ImGui_ImplSDL3_InitForOpenGL(SDL_Window* window, void* sdl_gl_context)
{
IM_UNUSED(sdl_gl_context); // Viewport branch will need this.
return ImGui_ImplSDL3_Init(window, nullptr);
return ImGui_ImplSDL3_Init(window, nullptr, sdl_gl_context);
}
bool ImGui_ImplSDL3_InitForVulkan(SDL_Window* window)
{
return ImGui_ImplSDL3_Init(window, nullptr);
return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
}
bool ImGui_ImplSDL3_InitForD3D(SDL_Window* window)
@ -399,19 +517,26 @@ bool ImGui_ImplSDL3_InitForD3D(SDL_Window* window)
#if !defined(_WIN32)
IM_ASSERT(0 && "Unsupported");
#endif
return ImGui_ImplSDL3_Init(window, nullptr);
return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
}
bool ImGui_ImplSDL3_InitForMetal(SDL_Window* window)
{
return ImGui_ImplSDL3_Init(window, nullptr);
return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
}
bool ImGui_ImplSDL3_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer)
{
return ImGui_ImplSDL3_Init(window, renderer);
return ImGui_ImplSDL3_Init(window, renderer, nullptr);
}
bool ImGui_ImplSDL3_InitForOther(SDL_Window* window)
{
return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
}
static void ImGui_ImplSDL3_CloseGamepads();
void ImGui_ImplSDL3_Shutdown()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
@ -422,7 +547,7 @@ void ImGui_ImplSDL3_Shutdown()
SDL_free(bd->ClipboardTextData);
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
SDL_DestroyCursor(bd->MouseCursors[cursor_n]);
bd->LastMouseCursor = nullptr;
ImGui_ImplSDL3_CloseGamepads();
io.BackendPlatformName = nullptr;
io.BackendPlatformUserData = nullptr;
@ -481,65 +606,125 @@ static void ImGui_ImplSDL3_UpdateMouseCursor()
{
// Show OS mouse cursor
SDL_Cursor* expected_cursor = bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow];
if (bd->LastMouseCursor != expected_cursor)
if (bd->MouseLastCursor != expected_cursor)
{
SDL_SetCursor(expected_cursor); // SDL function doesn't have an early out (see #6113)
bd->LastMouseCursor = expected_cursor;
bd->MouseLastCursor = expected_cursor;
}
SDL_ShowCursor();
}
}
static void ImGui_ImplSDL3_CloseGamepads()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
if (bd->GamepadMode != ImGui_ImplSDL3_GamepadMode_Manual)
for (SDL_Gamepad* gamepad : bd->Gamepads)
SDL_CloseGamepad(gamepad);
bd->Gamepads.resize(0);
}
void ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode mode, SDL_Gamepad** manual_gamepads_array, int manual_gamepads_count)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
ImGui_ImplSDL3_CloseGamepads();
if (mode == ImGui_ImplSDL3_GamepadMode_Manual)
{
IM_ASSERT(manual_gamepads_array != nullptr && manual_gamepads_count > 0);
for (int n = 0; n < manual_gamepads_count; n++)
bd->Gamepads.push_back(manual_gamepads_array[n]);
}
else
{
IM_ASSERT(manual_gamepads_array == nullptr && manual_gamepads_count <= 0);
bd->WantUpdateGamepadsList = true;
}
bd->GamepadMode = mode;
}
static void ImGui_ImplSDL3_UpdateGamepadButton(ImGui_ImplSDL3_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GamepadButton button_no)
{
bool merged_value = false;
for (SDL_Gamepad* gamepad : bd->Gamepads)
merged_value |= SDL_GetGamepadButton(gamepad, button_no) != 0;
io.AddKeyEvent(key, merged_value);
}
static inline float Saturate(float v) { return v < 0.0f ? 0.0f : v > 1.0f ? 1.0f : v; }
static void ImGui_ImplSDL3_UpdateGamepadAnalog(ImGui_ImplSDL3_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GamepadAxis axis_no, float v0, float v1)
{
float merged_value = 0.0f;
for (SDL_Gamepad* gamepad : bd->Gamepads)
{
float vn = Saturate((float)(SDL_GetGamepadAxis(gamepad, axis_no) - v0) / (float)(v1 - v0));
if (merged_value < vn)
merged_value = vn;
}
io.AddKeyAnalogEvent(key, merged_value > 0.1f, merged_value);
}
static void ImGui_ImplSDL3_UpdateGamepads()
{
ImGuiIO& io = ImGui::GetIO();
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
return;
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
// Get gamepad
// Update list of gamepads to use
if (bd->WantUpdateGamepadsList && bd->GamepadMode != ImGui_ImplSDL3_GamepadMode_Manual)
{
ImGui_ImplSDL3_CloseGamepads();
int sdl_gamepads_count = 0;
SDL_JoystickID* sdl_gamepads = SDL_GetGamepads(&sdl_gamepads_count);
for (int n = 0; n < sdl_gamepads_count; n++)
if (SDL_Gamepad* gamepad = SDL_OpenGamepad(sdl_gamepads[n]))
{
bd->Gamepads.push_back(gamepad);
if (bd->GamepadMode == ImGui_ImplSDL3_GamepadMode_AutoFirst)
break;
}
bd->WantUpdateGamepadsList = false;
SDL_free(sdl_gamepads);
}
// FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
return;
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
SDL_Gamepad* gamepad = SDL_OpenGamepad(0);
if (!gamepad)
if (bd->Gamepads.Size == 0)
return;
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
// Update gamepad inputs
#define IM_SATURATE(V) (V < 0.0f ? 0.0f : V > 1.0f ? 1.0f : V)
#define MAP_BUTTON(KEY_NO, BUTTON_NO) { io.AddKeyEvent(KEY_NO, SDL_GetGamepadButton(gamepad, BUTTON_NO) != 0); }
#define MAP_ANALOG(KEY_NO, AXIS_NO, V0, V1) { float vn = (float)(SDL_GetGamepadAxis(gamepad, AXIS_NO) - V0) / (float)(V1 - V0); vn = IM_SATURATE(vn); io.AddKeyAnalogEvent(KEY_NO, vn > 0.1f, vn); }
const int thumb_dead_zone = 8000; // SDL_gamecontroller.h suggests using this value.
MAP_BUTTON(ImGuiKey_GamepadStart, SDL_GAMEPAD_BUTTON_START);
MAP_BUTTON(ImGuiKey_GamepadBack, SDL_GAMEPAD_BUTTON_BACK);
MAP_BUTTON(ImGuiKey_GamepadFaceLeft, SDL_GAMEPAD_BUTTON_X); // Xbox X, PS Square
MAP_BUTTON(ImGuiKey_GamepadFaceRight, SDL_GAMEPAD_BUTTON_B); // Xbox B, PS Circle
MAP_BUTTON(ImGuiKey_GamepadFaceUp, SDL_GAMEPAD_BUTTON_Y); // Xbox Y, PS Triangle
MAP_BUTTON(ImGuiKey_GamepadFaceDown, SDL_GAMEPAD_BUTTON_A); // Xbox A, PS Cross
MAP_BUTTON(ImGuiKey_GamepadDpadLeft, SDL_GAMEPAD_BUTTON_DPAD_LEFT);
MAP_BUTTON(ImGuiKey_GamepadDpadRight, SDL_GAMEPAD_BUTTON_DPAD_RIGHT);
MAP_BUTTON(ImGuiKey_GamepadDpadUp, SDL_GAMEPAD_BUTTON_DPAD_UP);
MAP_BUTTON(ImGuiKey_GamepadDpadDown, SDL_GAMEPAD_BUTTON_DPAD_DOWN);
MAP_BUTTON(ImGuiKey_GamepadL1, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER);
MAP_BUTTON(ImGuiKey_GamepadR1, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER);
MAP_ANALOG(ImGuiKey_GamepadL2, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, 0.0f, 32767);
MAP_ANALOG(ImGuiKey_GamepadR2, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, 0.0f, 32767);
MAP_BUTTON(ImGuiKey_GamepadL3, SDL_GAMEPAD_BUTTON_LEFT_STICK);
MAP_BUTTON(ImGuiKey_GamepadR3, SDL_GAMEPAD_BUTTON_RIGHT_STICK);
MAP_ANALOG(ImGuiKey_GamepadLStickLeft, SDL_GAMEPAD_AXIS_LEFTX, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadLStickRight, SDL_GAMEPAD_AXIS_LEFTX, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiKey_GamepadLStickUp, SDL_GAMEPAD_AXIS_LEFTY, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadLStickDown, SDL_GAMEPAD_AXIS_LEFTY, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiKey_GamepadRStickLeft, SDL_GAMEPAD_AXIS_RIGHTX, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadRStickRight, SDL_GAMEPAD_AXIS_RIGHTX, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiKey_GamepadRStickUp, SDL_GAMEPAD_AXIS_RIGHTY, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadRStickDown, SDL_GAMEPAD_AXIS_RIGHTY, +thumb_dead_zone, +32767);
#undef MAP_BUTTON
#undef MAP_ANALOG
const int thumb_dead_zone = 8000; // SDL_gamepad.h suggests using this value.
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadStart, SDL_GAMEPAD_BUTTON_START);
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadBack, SDL_GAMEPAD_BUTTON_BACK);
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceLeft, SDL_GAMEPAD_BUTTON_WEST); // Xbox X, PS Square
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceRight, SDL_GAMEPAD_BUTTON_EAST); // Xbox B, PS Circle
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceUp, SDL_GAMEPAD_BUTTON_NORTH); // Xbox Y, PS Triangle
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceDown, SDL_GAMEPAD_BUTTON_SOUTH); // Xbox A, PS Cross
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadLeft, SDL_GAMEPAD_BUTTON_DPAD_LEFT);
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadRight, SDL_GAMEPAD_BUTTON_DPAD_RIGHT);
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadUp, SDL_GAMEPAD_BUTTON_DPAD_UP);
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadDown, SDL_GAMEPAD_BUTTON_DPAD_DOWN);
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL1, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER);
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR1, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadL2, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, 0.0f, 32767);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadR2, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, 0.0f, 32767);
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL3, SDL_GAMEPAD_BUTTON_LEFT_STICK);
ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR3, SDL_GAMEPAD_BUTTON_RIGHT_STICK);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickLeft, SDL_GAMEPAD_AXIS_LEFTX, -thumb_dead_zone, -32768);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickRight, SDL_GAMEPAD_AXIS_LEFTX, +thumb_dead_zone, +32767);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickUp, SDL_GAMEPAD_AXIS_LEFTY, -thumb_dead_zone, -32768);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickDown, SDL_GAMEPAD_AXIS_LEFTY, +thumb_dead_zone, +32767);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickLeft, SDL_GAMEPAD_AXIS_RIGHTX, -thumb_dead_zone, -32768);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickRight, SDL_GAMEPAD_AXIS_RIGHTX, +thumb_dead_zone, +32767);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickUp, SDL_GAMEPAD_AXIS_RIGHTY, -thumb_dead_zone, -32768);
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickDown, SDL_GAMEPAD_AXIS_RIGHTY, +thumb_dead_zone, +32767);
}
void ImGui_ImplSDL3_NewFrame()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDL3_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDL3_Init()?");
ImGuiIO& io = ImGui::GetIO();
// Setup display size (every frame to accommodate for window resizing)
@ -562,10 +747,10 @@ void ImGui_ImplSDL3_NewFrame()
io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / frequency) : (float)(1.0f / 60.0f);
bd->Time = current_time;
if (bd->PendingMouseLeaveFrame && bd->PendingMouseLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
if (bd->MousePendingLeaveFrame && bd->MousePendingLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
{
bd->MouseWindowID = 0;
bd->PendingMouseLeaveFrame = 0;
bd->MousePendingLeaveFrame = 0;
io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
}
@ -576,7 +761,10 @@ void ImGui_ImplSDL3_NewFrame()
ImGui_ImplSDL3_UpdateGamepads();
}
//-----------------------------------------------------------------------------
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#endif // #ifndef IMGUI_DISABLE

23
backends/imgui_impl_sdl3.h
View File

@ -1,7 +1,8 @@
// dear imgui: Platform Backend for SDL3 (*EXPERIMENTAL*)
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// (Info: SDL3 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
// (IMPORTANT: SDL 3.0.0 is NOT YET RELEASED. IT IS POSSIBLE THAT ITS SPECS/API WILL CHANGE BEFORE RELEASE)
// (**IMPORTANT: SDL 3.0.0 is NOT YET RELEASED AND CURRENTLY HAS A FAST CHANGING API. THIS CODE BREAKS OFTEN AS SDL3 CHANGES.**)
// Implemented features:
// [X] Platform: Clipboard support.
@ -9,26 +10,38 @@
// [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 will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// Missing features:
// [x] Platform: Basic 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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_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 = NULL, int manual_gamepads_count = -1);
#endif // #ifndef IMGUI_DISABLE

29
backends/imgui_impl_sdlrenderer.h
View File

@ -1,29 +0,0 @@
// dear imgui: Renderer Backend for SDL_Renderer
// (Requires: SDL 2.0.17+)
// Important to understand: SDL_Renderer is an _optional_ component of SDL.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
// If your application will want to render any non trivial amount of graphics other than UI,
// please be aware that SDL_Renderer offers a limited graphic API to the end-user and it might
// be difficult to step out of those boundaries.
// However, we understand it is a convenient choice to get an app started easily.
// Implemented features:
// [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct SDL_Renderer;
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_Init(SDL_Renderer* renderer);
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_Shutdown();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_NewFrame();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data);
// Called by Init/NewFrame/Shutdown
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_DestroyDeviceObjects();

121
backends/imgui_impl_sdlrenderer.cpp → backends/imgui_impl_sdlrenderer2.cpp
View File

@ -1,22 +1,27 @@
// dear imgui: Renderer Backend for SDL_Renderer
// dear imgui: Renderer Backend for SDL_Renderer for SDL2
// (Requires: SDL 2.0.17+)
// Important to understand: SDL_Renderer is an _optional_ component of SDL.
// Note how SDL_Renderer is an _optional_ component of SDL2.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
// If your application will want to render any non trivial amount of graphics other than UI,
// please be aware that SDL_Renderer offers a limited graphic API to the end-user and it might
// be difficult to step out of those boundaries.
// However, we understand it is a convenient choice to get an app started easily.
// 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 ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
// 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.
@ -24,12 +29,9 @@
// 2021-09-21: Initial version.
#include "imgui.h"
#include "imgui_impl_sdlrenderer.h"
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#ifndef IMGUI_DISABLE
#include "imgui_impl_sdlrenderer2.h"
#include <stdint.h> // intptr_t
#endif
// Clang warnings with -Weverything
#if defined(__clang__)
@ -44,45 +46,46 @@
#endif
// SDL_Renderer data
struct ImGui_ImplSDLRenderer_Data
struct ImGui_ImplSDLRenderer2_Data
{
SDL_Renderer* SDLRenderer;
SDL_Renderer* Renderer; // Main viewport's renderer
SDL_Texture* FontTexture;
ImGui_ImplSDLRenderer_Data() { memset((void*)this, 0, sizeof(*this)); }
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_ImplSDLRenderer_Data* ImGui_ImplSDLRenderer_GetBackendData()
static ImGui_ImplSDLRenderer2_Data* ImGui_ImplSDLRenderer2_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplSDLRenderer_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
return ImGui::GetCurrentContext() ? (ImGui_ImplSDLRenderer2_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
}
// Functions
bool ImGui_ImplSDLRenderer_Init(SDL_Renderer* renderer)
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_ImplSDLRenderer_Data* bd = IM_NEW(ImGui_ImplSDLRenderer_Data)();
ImGui_ImplSDLRenderer2_Data* bd = IM_NEW(ImGui_ImplSDLRenderer2_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_sdlrenderer";
io.BackendRendererName = "imgui_impl_sdlrenderer2";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
bd->SDLRenderer = renderer;
bd->Renderer = renderer;
return true;
}
void ImGui_ImplSDLRenderer_Shutdown()
void ImGui_ImplSDLRenderer2_Shutdown()
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer_DestroyDeviceObjects();
ImGui_ImplSDLRenderer2_DestroyDeviceObjects();
io.BackendRendererName = nullptr;
io.BackendRendererUserData = nullptr;
@ -90,35 +93,31 @@ void ImGui_ImplSDLRenderer_Shutdown()
IM_DELETE(bd);
}
static void ImGui_ImplSDLRenderer_SetupRenderState()
static void ImGui_ImplSDLRenderer2_SetupRenderState(SDL_Renderer* renderer)
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
// 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(bd->SDLRenderer, nullptr);
SDL_RenderSetClipRect(bd->SDLRenderer, nullptr);
SDL_RenderSetViewport(renderer, nullptr);
SDL_RenderSetClipRect(renderer, nullptr);
}
void ImGui_ImplSDLRenderer_NewFrame()
void ImGui_ImplSDLRenderer2_NewFrame()
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDLRenderer_Init()?");
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDLRenderer2_Init()?");
if (!bd->FontTexture)
ImGui_ImplSDLRenderer_CreateDeviceObjects();
ImGui_ImplSDLRenderer2_CreateDeviceObjects();
}
void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer)
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_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_RenderGetScale(bd->SDLRenderer, &rsx, &rsy);
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;
@ -137,16 +136,16 @@ void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
SDL_Rect ClipRect;
};
BackupSDLRendererState old = {};
old.ClipEnabled = SDL_RenderIsClipEnabled(bd->SDLRenderer) == SDL_TRUE;
SDL_RenderGetViewport(bd->SDLRenderer, &old.Viewport);
SDL_RenderGetClipRect(bd->SDLRenderer, &old.ClipRect);
old.ClipEnabled = SDL_RenderIsClipEnabled(renderer) == SDL_TRUE;
SDL_RenderGetViewport(renderer, &old.Viewport);
SDL_RenderGetClipRect(renderer, &old.ClipRect);
// 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
ImGui_ImplSDLRenderer_SetupRenderState();
ImGui_ImplSDLRenderer2_SetupRenderState(renderer);
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
@ -161,7 +160,7 @@ void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
// 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_ImplSDLRenderer_SetupRenderState();
ImGui_ImplSDLRenderer2_SetupRenderState(renderer);
else
pcmd->UserCallback(cmd_list, pcmd);
}
@ -178,19 +177,19 @@ void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
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(bd->SDLRenderer, &r);
SDL_RenderSetClipRect(renderer, &r);
const float* xy = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + IM_OFFSETOF(ImDrawVert, pos));
const float* uv = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + IM_OFFSETOF(ImDrawVert, uv));
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) + IM_OFFSETOF(ImDrawVert, col)); // SDL 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) + IM_OFFSETOF(ImDrawVert, col)); // SDL 2.0.17 and 2.0.18
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(bd->SDLRenderer, tex,
SDL_RenderGeometryRaw(renderer, tex,
xy, (int)sizeof(ImDrawVert),
color, (int)sizeof(ImDrawVert),
uv, (int)sizeof(ImDrawVert),
@ -201,15 +200,15 @@ void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
}
// Restore modified SDL_Renderer state
SDL_RenderSetViewport(bd->SDLRenderer, &old.Viewport);
SDL_RenderSetClipRect(bd->SDLRenderer, old.ClipEnabled ? &old.ClipRect : nullptr);
SDL_RenderSetViewport(renderer, &old.Viewport);
SDL_RenderSetClipRect(renderer, old.ClipEnabled ? &old.ClipRect : nullptr);
}
// Called by Init/NewFrame/Shutdown
bool ImGui_ImplSDLRenderer_CreateFontsTexture()
bool ImGui_ImplSDLRenderer2_CreateFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
// Build texture atlas
unsigned char* pixels;
@ -218,7 +217,7 @@ bool ImGui_ImplSDLRenderer_CreateFontsTexture()
// 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)
bd->FontTexture = SDL_CreateTexture(bd->SDLRenderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STATIC, width, height);
bd->FontTexture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STATIC, width, height);
if (bd->FontTexture == nullptr)
{
SDL_Log("error creating texture");
@ -234,10 +233,10 @@ bool ImGui_ImplSDLRenderer_CreateFontsTexture()
return true;
}
void ImGui_ImplSDLRenderer_DestroyFontsTexture()
void ImGui_ImplSDLRenderer2_DestroyFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
if (bd->FontTexture)
{
io.Fonts->SetTexID(0);
@ -246,16 +245,20 @@ void ImGui_ImplSDLRenderer_DestroyFontsTexture()
}
}
bool ImGui_ImplSDLRenderer_CreateDeviceObjects()
bool ImGui_ImplSDLRenderer2_CreateDeviceObjects()
{
return ImGui_ImplSDLRenderer_CreateFontsTexture();
return ImGui_ImplSDLRenderer2_CreateFontsTexture();
}
void ImGui_ImplSDLRenderer_DestroyDeviceObjects()
void ImGui_ImplSDLRenderer2_DestroyDeviceObjects()
{
ImGui_ImplSDLRenderer_DestroyFontsTexture();
ImGui_ImplSDLRenderer2_DestroyFontsTexture();
}
//-----------------------------------------------------------------------------
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#endif // #ifndef IMGUI_DISABLE

40
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@ -0,0 +1,40 @@
// dear imgui: Renderer Backend for SDL_Renderer for SDL2
// (Requires: SDL 2.0.17+)
// Note how SDL_Renderer is an _optional_ component of SDL2.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
// If your application will want 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 ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// 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 bool ImGui_ImplSDLRenderer2_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer2_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer2_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer2_DestroyDeviceObjects();
#endif // #ifndef IMGUI_DISABLE

283
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@ -0,0 +1,283 @@
// dear imgui: Renderer Backend for SDL_Renderer for SDL3
// (Requires: SDL 3.0.0+)
// (**IMPORTANT: SDL 3.0.0 is NOT YET RELEASED AND CURRENTLY HAS A FAST CHANGING API. THIS CODE BREAKS OFTEN AS SDL3 CHANGES.**)
// Note how SDL_Renderer is an _optional_ component of SDL3.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
// If your application will want 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 ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// 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
// 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
#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
SDL_Texture* FontTexture;
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.
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();
ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
io.BackendRendererName = nullptr;
io.BackendRendererUserData = nullptr;
io.BackendFlags &= ~ImGuiBackendFlags_RendererHasVtxOffset;
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()?");
if (!bd->FontTexture)
ImGui_ImplSDLRenderer3_CreateDeviceObjects();
}
// 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;
// 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) == SDL_TRUE;
old.ClipEnabled = SDL_RenderClipEnabled(renderer) == SDL_TRUE;
SDL_GetRenderViewport(renderer, &old.Viewport);
SDL_GetRenderClipRect(renderer, &old.ClipRect);
// 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
ImGui_ImplSDLRenderer3_SetupRenderState(renderer);
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_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(cmd_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),
cmd_list->VtxBuffer.Size - pcmd->VtxOffset,
idx_buffer + pcmd->IdxOffset, pcmd->ElemCount, sizeof(ImDrawIdx));
}
}
}
// Restore modified SDL_Renderer state
SDL_SetRenderViewport(renderer, old.ViewportEnabled ? &old.Viewport : nullptr);
SDL_SetRenderClipRect(renderer, old.ClipEnabled ? &old.ClipRect : nullptr);
}
// Called by Init/NewFrame/Shutdown
bool ImGui_ImplSDLRenderer3_CreateFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
// Build texture atlas
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
// 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)
bd->FontTexture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STATIC, width, height);
if (bd->FontTexture == nullptr)
{
SDL_Log("error creating texture");
return false;
}
SDL_UpdateTexture(bd->FontTexture, nullptr, pixels, 4 * width);
SDL_SetTextureBlendMode(bd->FontTexture, SDL_BLENDMODE_BLEND);
SDL_SetTextureScaleMode(bd->FontTexture, SDL_SCALEMODE_LINEAR);
// Store our identifier
io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);
return true;
}
void ImGui_ImplSDLRenderer3_DestroyFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
if (bd->FontTexture)
{
io.Fonts->SetTexID(0);
SDL_DestroyTexture(bd->FontTexture);
bd->FontTexture = nullptr;
}
}
bool ImGui_ImplSDLRenderer3_CreateDeviceObjects()
{
return ImGui_ImplSDLRenderer3_CreateFontsTexture();
}
void ImGui_ImplSDLRenderer3_DestroyDeviceObjects()
{
ImGui_ImplSDLRenderer3_DestroyFontsTexture();
}
//-----------------------------------------------------------------------------
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#endif // #ifndef IMGUI_DISABLE

42
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@ -0,0 +1,42 @@
// dear imgui: Renderer Backend for SDL_Renderer for SDL3
// (Requires: SDL 3.0.0+)
// (**IMPORTANT: SDL 3.0.0 is NOT YET RELEASED AND CURRENTLY HAS A FAST CHANGING API. THIS CODE BREAKS OFTEN AS SDL3 CHANGES.**)
// Note how SDL_Renderer is an _optional_ component of SDL3.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
// If your application will want 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 ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// 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 bool ImGui_ImplSDLRenderer3_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer3_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer3_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
#endif // #ifndef IMGUI_DISABLE

455
backends/imgui_impl_vulkan.cpp
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@ -13,14 +13,17 @@
// - [Solution 3] IDE/msbuild: edit imconfig.h and add '#define ImTextureID ImU64' (prefer solution 2 to create your own config file!)
// - [Solution 4] command-line: add '/D ImTextureID=ImU64' to your cl.exe command-line (this is what we do in our batch files)
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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.
@ -30,9 +33,23 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2024-04-19: Vulkan: Added convenience support for Volk via IMGUI_IMPL_VULKAN_USE_VOLK define (you can also use IMGUI_IMPL_VULKAN_NO_PROTOTYPES + wrap Volk via ImGui_ImplVulkan_LoadFunctions().)
// 2024-02-14: *BREAKING CHANGE*: Moved RenderPass parameter from ImGui_ImplVulkan_Init() function to ImGui_ImplVulkan_InitInfo structure. Not required when using dynamic rendering.
// 2024-02-12: *BREAKING CHANGE*: Dynamic rendering now require filling PipelineRenderingCreateInfo structure.
// 2024-01-19: Vulkan: Fixed vkAcquireNextImageKHR() validation errors in VulkanSDK 1.3.275 by allocating one extra semaphore than in-flight frames. (#7236)
// 2024-01-11: Vulkan: Fixed vkMapMemory() calls unnecessarily using full buffer size (#3957). Fixed MinAllocationSize handing (#7189).
// 2024-01-03: Vulkan: Added MinAllocationSize field in ImGui_ImplVulkan_InitInfo to workaround zealous "best practice" validation layer. (#7189, #4238)
// 2024-01-03: Vulkan: Stopped creating command pools with VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT as we don't reset them.
// 2023-11-29: Vulkan: Fixed mismatching allocator passed to vkCreateCommandPool() vs vkDestroyCommandPool(). (#7075)
// 2023-11-10: *BREAKING CHANGE*: Removed parameter from ImGui_ImplVulkan_CreateFontsTexture(): backend now creates its own command-buffer to upload fonts.
// *BREAKING CHANGE*: Removed ImGui_ImplVulkan_DestroyFontUploadObjects() which is now unnecessary as we create and destroy those objects in the backend.
// ImGui_ImplVulkan_CreateFontsTexture() is automatically called by NewFrame() the first time.
// You can call ImGui_ImplVulkan_CreateFontsTexture() again to recreate the font atlas texture.
// Added ImGui_ImplVulkan_DestroyFontsTexture() but you probably never need to call this.
// 2023-07-04: Vulkan: Added optional support for VK_KHR_dynamic_rendering. User needs to set init_info->UseDynamicRendering = true and init_info->ColorAttachmentFormat.
// 2023-01-02: Vulkan: Fixed sampler passed to ImGui_ImplVulkan_AddTexture() not being honored + removed a bunch of duplicate code.
// 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
// 2022-10-04: Vulkan: Added experimental ImGui_ImplVulkan_RemoveTexture() for api symetry. (#914, #5738).
// 2022-10-04: Vulkan: Added experimental ImGui_ImplVulkan_RemoveTexture() for api symmetry. (#914, #5738).
// 2022-01-20: Vulkan: Added support for ImTextureID as VkDescriptorSet. User need to call ImGui_ImplVulkan_AddTexture(). Building for 32-bit targets requires '#define ImTextureID ImU64'. (#914).
// 2021-10-15: Vulkan: Call vkCmdSetScissor() at the end of render a full-viewport to reduce likehood of issues with people using VK_DYNAMIC_STATE_SCISSOR in their app without calling vkCmdSetScissor() explicitly every frame.
// 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).
@ -65,90 +82,45 @@
// 2016-10-18: Vulkan: Add location decorators & change to use structs as in/out in glsl, update embedded spv (produced with glslangValidator -x). Null the released resources.
// 2016-08-27: Vulkan: Fix Vulkan example for use when a depth buffer is active.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_vulkan.h"
#include <stdio.h>
#ifndef IM_MAX
#define IM_MAX(A, B) (((A) >= (B)) ? (A) : (B))
#endif
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4127) // condition expression is constant
#endif
// Reusable buffers used for rendering 1 current in-flight frame, for ImGui_ImplVulkan_RenderDrawData()
// [Please zero-clear before use!]
struct ImGui_ImplVulkanH_FrameRenderBuffers
{
VkDeviceMemory VertexBufferMemory;
VkDeviceMemory IndexBufferMemory;
VkDeviceSize VertexBufferSize;
VkDeviceSize IndexBufferSize;
VkBuffer VertexBuffer;
VkBuffer IndexBuffer;
};
// Each viewport will hold 1 ImGui_ImplVulkanH_WindowRenderBuffers
// [Please zero-clear before use!]
struct ImGui_ImplVulkanH_WindowRenderBuffers
{
uint32_t Index;
uint32_t Count;
ImGui_ImplVulkanH_FrameRenderBuffers* FrameRenderBuffers;
};
// Vulkan data
struct ImGui_ImplVulkan_Data
{
ImGui_ImplVulkan_InitInfo VulkanInitInfo;
VkRenderPass RenderPass;
VkDeviceSize BufferMemoryAlignment;
VkPipelineCreateFlags PipelineCreateFlags;
VkDescriptorSetLayout DescriptorSetLayout;
VkPipelineLayout PipelineLayout;
VkPipeline Pipeline;
uint32_t Subpass;
VkShaderModule ShaderModuleVert;
VkShaderModule ShaderModuleFrag;
// Font data
VkSampler FontSampler;
VkDeviceMemory FontMemory;
VkImage FontImage;
VkImageView FontView;
VkDescriptorSet FontDescriptorSet;
VkDeviceMemory UploadBufferMemory;
VkBuffer UploadBuffer;
// Render buffers for main window
ImGui_ImplVulkanH_WindowRenderBuffers MainWindowRenderBuffers;
ImGui_ImplVulkan_Data()
{
memset((void*)this, 0, sizeof(*this));
BufferMemoryAlignment = 256;
}
};
// Forward Declarations
struct ImGui_ImplVulkan_FrameRenderBuffers;
struct ImGui_ImplVulkan_WindowRenderBuffers;
bool ImGui_ImplVulkan_CreateDeviceObjects();
void ImGui_ImplVulkan_DestroyDeviceObjects();
void ImGui_ImplVulkan_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulkan_FrameRenderBuffers* buffers, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkan_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVulkan_WindowRenderBuffers* buffers, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyFrame(VkDevice device, ImGui_ImplVulkanH_Frame* fd, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyFrameSemaphores(VkDevice device, ImGui_ImplVulkanH_FrameSemaphores* fsd, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulkanH_FrameRenderBuffers* buffers, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVulkanH_WindowRenderBuffers* buffers, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count);
void ImGui_ImplVulkanH_CreateWindowCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator);
// Vulkan prototypes for use with custom loaders
// (see description of IMGUI_IMPL_VULKAN_NO_PROTOTYPES in imgui_impl_vulkan.h
#ifdef VK_NO_PROTOTYPES
#if defined(VK_NO_PROTOTYPES) && !defined(VOLK_H_)
#define IMGUI_IMPL_VULKAN_USE_LOADER
static bool g_FunctionsLoaded = false;
#else
static bool g_FunctionsLoaded = true;
#endif
#ifdef VK_NO_PROTOTYPES
#ifdef IMGUI_IMPL_VULKAN_USE_LOADER
#define IMGUI_VULKAN_FUNC_MAP(IMGUI_VULKAN_FUNC_MAP_MACRO) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkAllocateCommandBuffers) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkAllocateDescriptorSets) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkAllocateMemory) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkBeginCommandBuffer) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkBindBufferMemory) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkBindImageMemory) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdBindDescriptorSets) \
@ -191,6 +163,7 @@ static bool g_FunctionsLoaded = true;
IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroySurfaceKHR) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroySwapchainKHR) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkDeviceWaitIdle) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkEndCommandBuffer) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkFlushMappedMemoryRanges) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkFreeCommandBuffers) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkFreeDescriptorSets) \
@ -203,6 +176,9 @@ static bool g_FunctionsLoaded = true;
IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetPhysicalDeviceSurfacePresentModesKHR) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetSwapchainImagesKHR) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkMapMemory) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkQueueSubmit) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkQueueWaitIdle) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkResetCommandPool) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkUnmapMemory) \
IMGUI_VULKAN_FUNC_MAP_MACRO(vkUpdateDescriptorSets)
@ -210,13 +186,70 @@ static bool g_FunctionsLoaded = true;
#define IMGUI_VULKAN_FUNC_DEF(func) static PFN_##func func;
IMGUI_VULKAN_FUNC_MAP(IMGUI_VULKAN_FUNC_DEF)
#undef IMGUI_VULKAN_FUNC_DEF
#endif // VK_NO_PROTOTYPES
#endif // IMGUI_IMPL_VULKAN_USE_LOADER
#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
static PFN_vkCmdBeginRenderingKHR ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR;
static PFN_vkCmdEndRenderingKHR ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR;
#endif
// Reusable buffers used for rendering 1 current in-flight frame, for ImGui_ImplVulkan_RenderDrawData()
// [Please zero-clear before use!]
struct ImGui_ImplVulkan_FrameRenderBuffers
{
VkDeviceMemory VertexBufferMemory;
VkDeviceMemory IndexBufferMemory;
VkDeviceSize VertexBufferSize;
VkDeviceSize IndexBufferSize;
VkBuffer VertexBuffer;
VkBuffer IndexBuffer;
};
// Each viewport will hold 1 ImGui_ImplVulkanH_WindowRenderBuffers
// [Please zero-clear before use!]
struct ImGui_ImplVulkan_WindowRenderBuffers
{
uint32_t Index;
uint32_t Count;
ImGui_ImplVulkan_FrameRenderBuffers* FrameRenderBuffers;
};
// Vulkan data
struct ImGui_ImplVulkan_Data
{
ImGui_ImplVulkan_InitInfo VulkanInitInfo;
VkDeviceSize BufferMemoryAlignment;
VkPipelineCreateFlags PipelineCreateFlags;
VkDescriptorSetLayout DescriptorSetLayout;
VkPipelineLayout PipelineLayout;
VkPipeline Pipeline;
VkShaderModule ShaderModuleVert;
VkShaderModule ShaderModuleFrag;
// Font data
VkSampler FontSampler;
VkDeviceMemory FontMemory;
VkImage FontImage;
VkImageView FontView;
VkDescriptorSet FontDescriptorSet;
VkCommandPool FontCommandPool;
VkCommandBuffer FontCommandBuffer;
// Render buffers for main window
ImGui_ImplVulkan_WindowRenderBuffers MainWindowRenderBuffers;
ImGui_ImplVulkan_Data()
{
memset((void*)this, 0, sizeof(*this));
BufferMemoryAlignment = 256;
}
};
//-----------------------------------------------------------------------------
// SHADERS
//-----------------------------------------------------------------------------
// glsl_shader.vert, compiled with:
// backends/vulkan/glsl_shader.vert, compiled with:
// # glslangValidator -V -x -o glsl_shader.vert.u32 glsl_shader.vert
/*
#version 450 core
@ -280,7 +313,7 @@ static uint32_t __glsl_shader_vert_spv[] =
0x0000002d,0x0000002c,0x000100fd,0x00010038
};
// glsl_shader.frag, compiled with:
// backends/vulkan/glsl_shader.frag, compiled with:
// # glslangValidator -V -x -o glsl_shader.frag.u32 glsl_shader.frag
/*
#version 450 core
@ -355,7 +388,13 @@ static void check_vk_result(VkResult err)
v->CheckVkResultFn(err);
}
static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory, VkDeviceSize& p_buffer_size, size_t new_size, VkBufferUsageFlagBits usage)
// Same as IM_MEMALIGN(). 'alignment' must be a power of two.
static inline VkDeviceSize AlignBufferSize(VkDeviceSize size, VkDeviceSize alignment)
{
return (size + alignment - 1) & ~(alignment - 1);
}
static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory, VkDeviceSize& buffer_size, size_t new_size, VkBufferUsageFlagBits usage)
{
ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
@ -365,10 +404,10 @@ static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory
if (buffer_memory != VK_NULL_HANDLE)
vkFreeMemory(v->Device, buffer_memory, v->Allocator);
VkDeviceSize vertex_buffer_size_aligned = ((new_size - 1) / bd->BufferMemoryAlignment + 1) * bd->BufferMemoryAlignment;
VkDeviceSize buffer_size_aligned = AlignBufferSize(IM_MAX(v->MinAllocationSize, new_size), bd->BufferMemoryAlignment);
VkBufferCreateInfo buffer_info = {};
buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
buffer_info.size = vertex_buffer_size_aligned;
buffer_info.size = buffer_size_aligned;
buffer_info.usage = usage;
buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
err = vkCreateBuffer(v->Device, &buffer_info, v->Allocator, &buffer);
@ -386,10 +425,10 @@ static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory
err = vkBindBufferMemory(v->Device, buffer, buffer_memory, 0);
check_vk_result(err);
p_buffer_size = req.size;
buffer_size = buffer_size_aligned;
}
static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline pipeline, VkCommandBuffer command_buffer, ImGui_ImplVulkanH_FrameRenderBuffers* rb, int fb_width, int fb_height)
static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline pipeline, VkCommandBuffer command_buffer, ImGui_ImplVulkan_FrameRenderBuffers* rb, int fb_width, int fb_height)
{
ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
@ -448,23 +487,23 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
pipeline = bd->Pipeline;
// Allocate array to store enough vertex/index buffers
ImGui_ImplVulkanH_WindowRenderBuffers* wrb = &bd->MainWindowRenderBuffers;
ImGui_ImplVulkan_WindowRenderBuffers* wrb = &bd->MainWindowRenderBuffers;
if (wrb->FrameRenderBuffers == nullptr)
{
wrb->Index = 0;
wrb->Count = v->ImageCount;
wrb->FrameRenderBuffers = (ImGui_ImplVulkanH_FrameRenderBuffers*)IM_ALLOC(sizeof(ImGui_ImplVulkanH_FrameRenderBuffers) * wrb->Count);
memset(wrb->FrameRenderBuffers, 0, sizeof(ImGui_ImplVulkanH_FrameRenderBuffers) * wrb->Count);
wrb->FrameRenderBuffers = (ImGui_ImplVulkan_FrameRenderBuffers*)IM_ALLOC(sizeof(ImGui_ImplVulkan_FrameRenderBuffers) * wrb->Count);
memset(wrb->FrameRenderBuffers, 0, sizeof(ImGui_ImplVulkan_FrameRenderBuffers) * wrb->Count);
}
IM_ASSERT(wrb->Count == v->ImageCount);
wrb->Index = (wrb->Index + 1) % wrb->Count;
ImGui_ImplVulkanH_FrameRenderBuffers* rb = &wrb->FrameRenderBuffers[wrb->Index];
ImGui_ImplVulkan_FrameRenderBuffers* rb = &wrb->FrameRenderBuffers[wrb->Index];
if (draw_data->TotalVtxCount > 0)
{
// Create or resize the vertex/index buffers
size_t vertex_size = draw_data->TotalVtxCount * sizeof(ImDrawVert);
size_t index_size = draw_data->TotalIdxCount * sizeof(ImDrawIdx);
size_t vertex_size = AlignBufferSize(draw_data->TotalVtxCount * sizeof(ImDrawVert), bd->BufferMemoryAlignment);
size_t index_size = AlignBufferSize(draw_data->TotalIdxCount * sizeof(ImDrawIdx), bd->BufferMemoryAlignment);
if (rb->VertexBuffer == VK_NULL_HANDLE || rb->VertexBufferSize < vertex_size)
CreateOrResizeBuffer(rb->VertexBuffer, rb->VertexBufferMemory, rb->VertexBufferSize, vertex_size, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT);
if (rb->IndexBuffer == VK_NULL_HANDLE || rb->IndexBufferSize < index_size)
@ -473,9 +512,9 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
// Upload vertex/index data into a single contiguous GPU buffer
ImDrawVert* vtx_dst = nullptr;
ImDrawIdx* idx_dst = nullptr;
VkResult err = vkMapMemory(v->Device, rb->VertexBufferMemory, 0, rb->VertexBufferSize, 0, (void**)(&vtx_dst));
VkResult err = vkMapMemory(v->Device, rb->VertexBufferMemory, 0, vertex_size, 0, (void**)&vtx_dst);
check_vk_result(err);
err = vkMapMemory(v->Device, rb->IndexBufferMemory, 0, rb->IndexBufferSize, 0, (void**)(&idx_dst));
err = vkMapMemory(v->Device, rb->IndexBufferMemory, 0, index_size, 0, (void**)&idx_dst);
check_vk_result(err);
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
@ -575,19 +614,55 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
vkCmdSetScissor(command_buffer, 0, 1, &scissor);
}
bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
bool ImGui_ImplVulkan_CreateFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
VkResult err;
// Destroy existing texture (if any)
if (bd->FontView || bd->FontImage || bd->FontMemory || bd->FontDescriptorSet)
{
vkQueueWaitIdle(v->Queue);
ImGui_ImplVulkan_DestroyFontsTexture();
}
// Create command pool/buffer
if (bd->FontCommandPool == VK_NULL_HANDLE)
{
VkCommandPoolCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
info.flags = 0;
info.queueFamilyIndex = v->QueueFamily;
vkCreateCommandPool(v->Device, &info, v->Allocator, &bd->FontCommandPool);
}
if (bd->FontCommandBuffer == VK_NULL_HANDLE)
{
VkCommandBufferAllocateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
info.commandPool = bd->FontCommandPool;
info.commandBufferCount = 1;
err = vkAllocateCommandBuffers(v->Device, &info, &bd->FontCommandBuffer);
check_vk_result(err);
}
// Start command buffer
{
err = vkResetCommandPool(v->Device, bd->FontCommandPool, 0);
check_vk_result(err);
VkCommandBufferBeginInfo begin_info = {};
begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
begin_info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
err = vkBeginCommandBuffer(bd->FontCommandBuffer, &begin_info);
check_vk_result(err);
}
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
size_t upload_size = width * height * 4 * sizeof(char);
VkResult err;
// Create the Image:
{
VkImageCreateInfo info = {};
@ -610,7 +685,7 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
vkGetImageMemoryRequirements(v->Device, bd->FontImage, &req);
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.allocationSize = req.size;
alloc_info.allocationSize = IM_MAX(v->MinAllocationSize, req.size);
alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, req.memoryTypeBits);
err = vkAllocateMemory(v->Device, &alloc_info, v->Allocator, &bd->FontMemory);
check_vk_result(err);
@ -636,40 +711,42 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
bd->FontDescriptorSet = (VkDescriptorSet)ImGui_ImplVulkan_AddTexture(bd->FontSampler, bd->FontView, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
// Create the Upload Buffer:
VkDeviceMemory upload_buffer_memory;
VkBuffer upload_buffer;
{
VkBufferCreateInfo buffer_info = {};
buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
buffer_info.size = upload_size;
buffer_info.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
err = vkCreateBuffer(v->Device, &buffer_info, v->Allocator, &bd->UploadBuffer);
err = vkCreateBuffer(v->Device, &buffer_info, v->Allocator, &upload_buffer);
check_vk_result(err);
VkMemoryRequirements req;
vkGetBufferMemoryRequirements(v->Device, bd->UploadBuffer, &req);
vkGetBufferMemoryRequirements(v->Device, upload_buffer, &req);
bd->BufferMemoryAlignment = (bd->BufferMemoryAlignment > req.alignment) ? bd->BufferMemoryAlignment : req.alignment;
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.allocationSize = req.size;
alloc_info.allocationSize = IM_MAX(v->MinAllocationSize, req.size);
alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
err = vkAllocateMemory(v->Device, &alloc_info, v->Allocator, &bd->UploadBufferMemory);
err = vkAllocateMemory(v->Device, &alloc_info, v->Allocator, &upload_buffer_memory);
check_vk_result(err);
err = vkBindBufferMemory(v->Device, bd->UploadBuffer, bd->UploadBufferMemory, 0);
err = vkBindBufferMemory(v->Device, upload_buffer, upload_buffer_memory, 0);
check_vk_result(err);
}
// Upload to Buffer:
{
char* map = nullptr;
err = vkMapMemory(v->Device, bd->UploadBufferMemory, 0, upload_size, 0, (void**)(&map));
err = vkMapMemory(v->Device, upload_buffer_memory, 0, upload_size, 0, (void**)(&map));
check_vk_result(err);
memcpy(map, pixels, upload_size);
VkMappedMemoryRange range[1] = {};
range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
range[0].memory = bd->UploadBufferMemory;
range[0].memory = upload_buffer_memory;
range[0].size = upload_size;
err = vkFlushMappedMemoryRanges(v->Device, 1, range);
check_vk_result(err);
vkUnmapMemory(v->Device, bd->UploadBufferMemory);
vkUnmapMemory(v->Device, upload_buffer_memory);
}
// Copy to Image:
@ -685,7 +762,7 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
copy_barrier[0].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
copy_barrier[0].subresourceRange.levelCount = 1;
copy_barrier[0].subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_HOST_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1, copy_barrier);
vkCmdPipelineBarrier(bd->FontCommandBuffer, VK_PIPELINE_STAGE_HOST_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1, copy_barrier);
VkBufferImageCopy region = {};
region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
@ -693,7 +770,7 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
region.imageExtent.width = width;
region.imageExtent.height = height;
region.imageExtent.depth = 1;
vkCmdCopyBufferToImage(command_buffer, bd->UploadBuffer, bd->FontImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &region);
vkCmdCopyBufferToImage(bd->FontCommandBuffer, upload_buffer, bd->FontImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &region);
VkImageMemoryBarrier use_barrier[1] = {};
use_barrier[0].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
@ -707,15 +784,50 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
use_barrier[0].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
use_barrier[0].subresourceRange.levelCount = 1;
use_barrier[0].subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, nullptr, 0, nullptr, 1, use_barrier);
vkCmdPipelineBarrier(bd->FontCommandBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, nullptr, 0, nullptr, 1, use_barrier);
}
// Store our identifier
io.Fonts->SetTexID((ImTextureID)bd->FontDescriptorSet);
// End command buffer
VkSubmitInfo end_info = {};
end_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
end_info.commandBufferCount = 1;
end_info.pCommandBuffers = &bd->FontCommandBuffer;
err = vkEndCommandBuffer(bd->FontCommandBuffer);
check_vk_result(err);
err = vkQueueSubmit(v->Queue, 1, &end_info, VK_NULL_HANDLE);
check_vk_result(err);
err = vkQueueWaitIdle(v->Queue);
check_vk_result(err);
vkDestroyBuffer(v->Device, upload_buffer, v->Allocator);
vkFreeMemory(v->Device, upload_buffer_memory, v->Allocator);
return true;
}
// You probably never need to call this, as it is called by ImGui_ImplVulkan_CreateFontsTexture() and ImGui_ImplVulkan_Shutdown().
void ImGui_ImplVulkan_DestroyFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
if (bd->FontDescriptorSet)
{
ImGui_ImplVulkan_RemoveTexture(bd->FontDescriptorSet);
bd->FontDescriptorSet = VK_NULL_HANDLE;
io.Fonts->SetTexID(0);
}
if (bd->FontView) { vkDestroyImageView(v->Device, bd->FontView, v->Allocator); bd->FontView = VK_NULL_HANDLE; }
if (bd->FontImage) { vkDestroyImage(v->Device, bd->FontImage, v->Allocator); bd->FontImage = VK_NULL_HANDLE; }
if (bd->FontMemory) { vkFreeMemory(v->Device, bd->FontMemory, v->Allocator); bd->FontMemory = VK_NULL_HANDLE; }
}
static void ImGui_ImplVulkan_CreateShaderModules(VkDevice device, const VkAllocationCallbacks* allocator)
{
// Create the shader modules
@ -763,15 +875,15 @@ static void ImGui_ImplVulkan_CreatePipeline(VkDevice device, const VkAllocationC
attribute_desc[0].location = 0;
attribute_desc[0].binding = binding_desc[0].binding;
attribute_desc[0].format = VK_FORMAT_R32G32_SFLOAT;
attribute_desc[0].offset = IM_OFFSETOF(ImDrawVert, pos);
attribute_desc[0].offset = offsetof(ImDrawVert, pos);
attribute_desc[1].location = 1;
attribute_desc[1].binding = binding_desc[0].binding;
attribute_desc[1].format = VK_FORMAT_R32G32_SFLOAT;
attribute_desc[1].offset = IM_OFFSETOF(ImDrawVert, uv);
attribute_desc[1].offset = offsetof(ImDrawVert, uv);
attribute_desc[2].location = 2;
attribute_desc[2].binding = binding_desc[0].binding;
attribute_desc[2].format = VK_FORMAT_R8G8B8A8_UNORM;
attribute_desc[2].offset = IM_OFFSETOF(ImDrawVert, col);
attribute_desc[2].offset = offsetof(ImDrawVert, col);
VkPipelineVertexInputStateCreateInfo vertex_info = {};
vertex_info.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
@ -840,6 +952,17 @@ static void ImGui_ImplVulkan_CreatePipeline(VkDevice device, const VkAllocationC
info.layout = bd->PipelineLayout;
info.renderPass = renderPass;
info.subpass = subpass;
#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
if (bd->VulkanInitInfo.UseDynamicRendering)
{
IM_ASSERT(bd->VulkanInitInfo.PipelineRenderingCreateInfo.sType == VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR && "PipelineRenderingCreateInfo sType must be VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR");
IM_ASSERT(bd->VulkanInitInfo.PipelineRenderingCreateInfo.pNext == nullptr && "PipelineRenderingCreateInfo pNext must be NULL");
info.pNext = &bd->VulkanInitInfo.PipelineRenderingCreateInfo;
info.renderPass = VK_NULL_HANDLE; // Just make sure it's actually nullptr.
}
#endif
VkResult err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &info, allocator, pipeline);
check_vk_result(err);
}
@ -900,39 +1023,22 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
check_vk_result(err);
}
ImGui_ImplVulkan_CreatePipeline(v->Device, v->Allocator, v->PipelineCache, bd->RenderPass, v->MSAASamples, &bd->Pipeline, bd->Subpass);
ImGui_ImplVulkan_CreatePipeline(v->Device, v->Allocator, v->PipelineCache, v->RenderPass, v->MSAASamples, &bd->Pipeline, v->Subpass);
return true;
}
void ImGui_ImplVulkan_DestroyFontUploadObjects()
{
ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
if (bd->UploadBuffer)
{
vkDestroyBuffer(v->Device, bd->UploadBuffer, v->Allocator);
bd->UploadBuffer = VK_NULL_HANDLE;
}
if (bd->UploadBufferMemory)
{
vkFreeMemory(v->Device, bd->UploadBufferMemory, v->Allocator);
bd->UploadBufferMemory = VK_NULL_HANDLE;
}
}
void ImGui_ImplVulkan_DestroyDeviceObjects()
{
ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
ImGui_ImplVulkanH_DestroyWindowRenderBuffers(v->Device, &bd->MainWindowRenderBuffers, v->Allocator);
ImGui_ImplVulkan_DestroyFontUploadObjects();
ImGui_ImplVulkan_DestroyWindowRenderBuffers(v->Device, &bd->MainWindowRenderBuffers, v->Allocator);
ImGui_ImplVulkan_DestroyFontsTexture();
if (bd->FontCommandBuffer) { vkFreeCommandBuffers(v->Device, bd->FontCommandPool, 1, &bd->FontCommandBuffer); bd->FontCommandBuffer = VK_NULL_HANDLE; }
if (bd->FontCommandPool) { vkDestroyCommandPool(v->Device, bd->FontCommandPool, v->Allocator); bd->FontCommandPool = VK_NULL_HANDLE; }
if (bd->ShaderModuleVert) { vkDestroyShaderModule(v->Device, bd->ShaderModuleVert, v->Allocator); bd->ShaderModuleVert = VK_NULL_HANDLE; }
if (bd->ShaderModuleFrag) { vkDestroyShaderModule(v->Device, bd->ShaderModuleFrag, v->Allocator); bd->ShaderModuleFrag = VK_NULL_HANDLE; }
if (bd->FontView) { vkDestroyImageView(v->Device, bd->FontView, v->Allocator); bd->FontView = VK_NULL_HANDLE; }
if (bd->FontImage) { vkDestroyImage(v->Device, bd->FontImage, v->Allocator); bd->FontImage = VK_NULL_HANDLE; }
if (bd->FontMemory) { vkFreeMemory(v->Device, bd->FontMemory, v->Allocator); bd->FontMemory = VK_NULL_HANDLE; }
if (bd->FontSampler) { vkDestroySampler(v->Device, bd->FontSampler, v->Allocator); bd->FontSampler = VK_NULL_HANDLE; }
if (bd->DescriptorSetLayout) { vkDestroyDescriptorSetLayout(v->Device, bd->DescriptorSetLayout, v->Allocator); bd->DescriptorSetLayout = VK_NULL_HANDLE; }
if (bd->PipelineLayout) { vkDestroyPipelineLayout(v->Device, bd->PipelineLayout, v->Allocator); bd->PipelineLayout = VK_NULL_HANDLE; }
@ -944,27 +1050,49 @@ bool ImGui_ImplVulkan_LoadFunctions(PFN_vkVoidFunction(*loader_func)(const ch
// Load function pointers
// You can use the default Vulkan loader using:
// ImGui_ImplVulkan_LoadFunctions([](const char* function_name, void*) { return vkGetInstanceProcAddr(your_vk_isntance, function_name); });
// But this would be equivalent to not setting VK_NO_PROTOTYPES.
#ifdef VK_NO_PROTOTYPES
// But this would be roughly equivalent to not setting VK_NO_PROTOTYPES.
#ifdef IMGUI_IMPL_VULKAN_USE_LOADER
#define IMGUI_VULKAN_FUNC_LOAD(func) \
func = reinterpret_cast<decltype(func)>(loader_func(#func, user_data)); \
if (func == nullptr) \
return false;
IMGUI_VULKAN_FUNC_MAP(IMGUI_VULKAN_FUNC_LOAD)
#undef IMGUI_VULKAN_FUNC_LOAD
#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
// Manually load those two (see #5446)
ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(loader_func("vkCmdBeginRenderingKHR", user_data));
ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(loader_func("vkCmdEndRenderingKHR", user_data));
#endif
#else
IM_UNUSED(loader_func);
IM_UNUSED(user_data);
#endif
g_FunctionsLoaded = true;
return true;
}
bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass)
bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info)
{
IM_ASSERT(g_FunctionsLoaded && "Need to call ImGui_ImplVulkan_LoadFunctions() if IMGUI_IMPL_VULKAN_NO_PROTOTYPES or VK_NO_PROTOTYPES are set!");
if (info->UseDynamicRendering)
{
#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
#ifndef IMGUI_IMPL_VULKAN_USE_LOADER
ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(vkGetInstanceProcAddr(info->Instance, "vkCmdBeginRenderingKHR"));
ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(vkGetInstanceProcAddr(info->Instance, "vkCmdEndRenderingKHR"));
#endif
IM_ASSERT(ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR != nullptr);
IM_ASSERT(ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR != nullptr);
#else
IM_ASSERT(0 && "Can't use dynamic rendering when neither VK_VERSION_1_3 or VK_KHR_dynamic_rendering is defined.");
#endif
}
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
// Setup backend capabilities flags
@ -980,11 +1108,10 @@ bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass rend
IM_ASSERT(info->DescriptorPool != VK_NULL_HANDLE);
IM_ASSERT(info->MinImageCount >= 2);
IM_ASSERT(info->ImageCount >= info->MinImageCount);
IM_ASSERT(render_pass != VK_NULL_HANDLE);
if (info->UseDynamicRendering == false)
IM_ASSERT(info->RenderPass != VK_NULL_HANDLE);
bd->VulkanInitInfo = *info;
bd->RenderPass = render_pass;
bd->Subpass = info->Subpass;
ImGui_ImplVulkan_CreateDeviceObjects();
@ -1007,8 +1134,10 @@ void ImGui_ImplVulkan_Shutdown()
void ImGui_ImplVulkan_NewFrame()
{
ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplVulkan_Init()?");
IM_UNUSED(bd);
IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplVulkan_Init()?");
if (!bd->FontDescriptorSet)
ImGui_ImplVulkan_CreateFontsTexture();
}
void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count)
@ -1021,7 +1150,7 @@ void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count)
ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
VkResult err = vkDeviceWaitIdle(v->Device);
check_vk_result(err);
ImGui_ImplVulkanH_DestroyWindowRenderBuffers(v->Device, &bd->MainWindowRenderBuffers, v->Allocator);
ImGui_ImplVulkan_DestroyWindowRenderBuffers(v->Device, &bd->MainWindowRenderBuffers, v->Allocator);
bd->VulkanInitInfo.MinImageCount = min_image_count;
}
@ -1068,6 +1197,26 @@ void ImGui_ImplVulkan_RemoveTexture(VkDescriptorSet descriptor_set)
vkFreeDescriptorSets(v->Device, v->DescriptorPool, 1, &descriptor_set);
}
void ImGui_ImplVulkan_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulkan_FrameRenderBuffers* buffers, const VkAllocationCallbacks* allocator)
{
if (buffers->VertexBuffer) { vkDestroyBuffer(device, buffers->VertexBuffer, allocator); buffers->VertexBuffer = VK_NULL_HANDLE; }
if (buffers->VertexBufferMemory) { vkFreeMemory(device, buffers->VertexBufferMemory, allocator); buffers->VertexBufferMemory = VK_NULL_HANDLE; }
if (buffers->IndexBuffer) { vkDestroyBuffer(device, buffers->IndexBuffer, allocator); buffers->IndexBuffer = VK_NULL_HANDLE; }
if (buffers->IndexBufferMemory) { vkFreeMemory(device, buffers->IndexBufferMemory, allocator); buffers->IndexBufferMemory = VK_NULL_HANDLE; }
buffers->VertexBufferSize = 0;
buffers->IndexBufferSize = 0;
}
void ImGui_ImplVulkan_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVulkan_WindowRenderBuffers* buffers, const VkAllocationCallbacks* allocator)
{
for (uint32_t n = 0; n < buffers->Count; n++)
ImGui_ImplVulkan_DestroyFrameRenderBuffers(device, &buffers->FrameRenderBuffers[n], allocator);
IM_FREE(buffers->FrameRenderBuffers);
buffers->FrameRenderBuffers = nullptr;
buffers->Index = 0;
buffers->Count = 0;
}
//-------------------------------------------------------------------------
// Internal / Miscellaneous Vulkan Helpers
// (Used by example's main.cpp. Used by multi-viewport features. PROBABLY NOT used by your own app.)
@ -1155,19 +1304,17 @@ VkPresentModeKHR ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_d
void ImGui_ImplVulkanH_CreateWindowCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator)
{
IM_ASSERT(physical_device != VK_NULL_HANDLE && device != VK_NULL_HANDLE);
(void)physical_device;
(void)allocator;
IM_UNUSED(physical_device);
// Create Command Buffers
VkResult err;
for (uint32_t i = 0; i < wd->ImageCount; i++)
{
ImGui_ImplVulkanH_Frame* fd = &wd->Frames[i];
ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[i];
{
VkCommandPoolCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
info.flags = 0;
info.queueFamilyIndex = queue_family;
err = vkCreateCommandPool(device, &info, allocator, &fd->CommandPool);
check_vk_result(err);
@ -1188,6 +1335,11 @@ void ImGui_ImplVulkanH_CreateWindowCommandBuffers(VkPhysicalDevice physical_devi
err = vkCreateFence(device, &info, allocator, &fd->Fence);
check_vk_result(err);
}
}
for (uint32_t i = 0; i < wd->SemaphoreCount; i++)
{
ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[i];
{
VkSemaphoreCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
@ -1223,10 +1375,9 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
// We don't use ImGui_ImplVulkanH_DestroyWindow() because we want to preserve the old swapchain to create the new one.
// Destroy old Framebuffer
for (uint32_t i = 0; i < wd->ImageCount; i++)
{
ImGui_ImplVulkanH_DestroyFrame(device, &wd->Frames[i], allocator);
for (uint32_t i = 0; i < wd->SemaphoreCount; i++)
ImGui_ImplVulkanH_DestroyFrameSemaphores(device, &wd->FrameSemaphores[i], allocator);
}
IM_FREE(wd->Frames);
IM_FREE(wd->FrameSemaphores);
wd->Frames = nullptr;
@ -1285,11 +1436,12 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
err = vkGetSwapchainImagesKHR(device, wd->Swapchain, &wd->ImageCount, backbuffers);
check_vk_result(err);
IM_ASSERT(wd->Frames == nullptr);
IM_ASSERT(wd->Frames == nullptr && wd->FrameSemaphores == nullptr);
wd->SemaphoreCount = wd->ImageCount + 1;
wd->Frames = (ImGui_ImplVulkanH_Frame*)IM_ALLOC(sizeof(ImGui_ImplVulkanH_Frame) * wd->ImageCount);
wd->FrameSemaphores = (ImGui_ImplVulkanH_FrameSemaphores*)IM_ALLOC(sizeof(ImGui_ImplVulkanH_FrameSemaphores) * wd->ImageCount);
wd->FrameSemaphores = (ImGui_ImplVulkanH_FrameSemaphores*)IM_ALLOC(sizeof(ImGui_ImplVulkanH_FrameSemaphores) * wd->SemaphoreCount);
memset(wd->Frames, 0, sizeof(wd->Frames[0]) * wd->ImageCount);
memset(wd->FrameSemaphores, 0, sizeof(wd->FrameSemaphores[0]) * wd->ImageCount);
memset(wd->FrameSemaphores, 0, sizeof(wd->FrameSemaphores[0]) * wd->SemaphoreCount);
for (uint32_t i = 0; i < wd->ImageCount; i++)
wd->Frames[i].Backbuffer = backbuffers[i];
}
@ -1297,6 +1449,7 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
vkDestroySwapchainKHR(device, old_swapchain, allocator);
// Create the Render Pass
if (wd->UseDynamicRendering == false)
{
VkAttachmentDescription attachment = {};
attachment.format = wd->SurfaceFormat.format;
@ -1334,7 +1487,7 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
// We do not create a pipeline by default as this is also used by examples' main.cpp,
// but secondary viewport in multi-viewport mode may want to create one with:
//ImGui_ImplVulkan_CreatePipeline(device, allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &wd->Pipeline, bd->Subpass);
//ImGui_ImplVulkan_CreatePipeline(device, allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &wd->Pipeline, v->Subpass);
}
// Create The Image Views
@ -1359,6 +1512,7 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
}
// Create Framebuffer
if (wd->UseDynamicRendering == false)
{
VkImageView attachment[1];
VkFramebufferCreateInfo info = {};
@ -1394,10 +1548,9 @@ void ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui
//vkQueueWaitIdle(bd->Queue);
for (uint32_t i = 0; i < wd->ImageCount; i++)
{
ImGui_ImplVulkanH_DestroyFrame(device, &wd->Frames[i], allocator);
for (uint32_t i = 0; i < wd->SemaphoreCount; i++)
ImGui_ImplVulkanH_DestroyFrameSemaphores(device, &wd->FrameSemaphores[i], allocator);
}
IM_FREE(wd->Frames);
IM_FREE(wd->FrameSemaphores);
wd->Frames = nullptr;
@ -1430,22 +1583,6 @@ void ImGui_ImplVulkanH_DestroyFrameSemaphores(VkDevice device, ImGui_ImplVulkanH
fsd->ImageAcquiredSemaphore = fsd->RenderCompleteSemaphore = VK_NULL_HANDLE;
}
void ImGui_ImplVulkanH_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulkanH_FrameRenderBuffers* buffers, const VkAllocationCallbacks* allocator)
{
if (buffers->VertexBuffer) { vkDestroyBuffer(device, buffers->VertexBuffer, allocator); buffers->VertexBuffer = VK_NULL_HANDLE; }
if (buffers->VertexBufferMemory) { vkFreeMemory(device, buffers->VertexBufferMemory, allocator); buffers->VertexBufferMemory = VK_NULL_HANDLE; }
if (buffers->IndexBuffer) { vkDestroyBuffer(device, buffers->IndexBuffer, allocator); buffers->IndexBuffer = VK_NULL_HANDLE; }
if (buffers->IndexBufferMemory) { vkFreeMemory(device, buffers->IndexBufferMemory, allocator); buffers->IndexBufferMemory = VK_NULL_HANDLE; }
buffers->VertexBufferSize = 0;
buffers->IndexBufferSize = 0;
}
//-----------------------------------------------------------------------------
void ImGui_ImplVulkanH_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVulkanH_WindowRenderBuffers* buffers, const VkAllocationCallbacks* allocator)
{
for (uint32_t n = 0; n < buffers->Count; n++)
ImGui_ImplVulkanH_DestroyFrameRenderBuffers(device, &buffers->FrameRenderBuffers[n], allocator);
IM_FREE(buffers->FrameRenderBuffers);
buffers->FrameRenderBuffers = nullptr;
buffers->Index = 0;
buffers->Count = 0;
}
#endif // #ifndef IMGUI_DISABLE

66
backends/imgui_impl_vulkan.h
View File

@ -8,14 +8,17 @@
// Important: on 32-bit systems, user texture binding is only supported if your imconfig file has '#define ImTextureID ImU64'.
// See imgui_impl_vulkan.cpp file for details.
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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.
@ -24,6 +27,7 @@
// 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:
@ -38,13 +42,31 @@
// If you have no idea what this is, leave it alone!
//#define IMGUI_IMPL_VULKAN_NO_PROTOTYPES
// Vulkan includes
// Convenience support for Volk
// (you can also technically use IMGUI_IMPL_VULKAN_NO_PROTOTYPES + wrap Volk via ImGui_ImplVulkan_LoadFunctions().)
//#define IMGUI_IMPL_VULKAN_USE_VOLK
#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
#include <volk.h>
#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
// Initialization data, for ImGui_ImplVulkan_Init()
// - VkDescriptorPool should be created with VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
// and must contain a pool size large enough to hold an ImGui VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER descriptor.
// - When using dynamic rendering, set UseDynamicRendering=true and fill PipelineRenderingCreateInfo structure.
// [Please zero-clear before use!]
struct ImGui_ImplVulkan_InitInfo
{
@ -53,23 +75,36 @@ struct ImGui_ImplVulkan_InitInfo
VkDevice Device;
uint32_t QueueFamily;
VkQueue Queue;
VkDescriptorPool DescriptorPool; // See requirements in note above
VkRenderPass RenderPass; // Ignored if using dynamic rendering
uint32_t MinImageCount; // >= 2
uint32_t ImageCount; // >= MinImageCount
VkSampleCountFlagBits MSAASamples; // 0 defaults to VK_SAMPLE_COUNT_1_BIT
// (Optional)
VkPipelineCache PipelineCache;
VkDescriptorPool DescriptorPool;
uint32_t Subpass;
uint32_t MinImageCount; // >= 2
uint32_t ImageCount; // >= MinImageCount
VkSampleCountFlagBits MSAASamples; // >= VK_SAMPLE_COUNT_1_BIT (0 -> default to VK_SAMPLE_COUNT_1_BIT)
// (Optional) Dynamic Rendering
// Need to explicitly enable VK_KHR_dynamic_rendering extension to use this, even for Vulkan 1.3.
bool UseDynamicRendering;
#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
VkPipelineRenderingCreateInfoKHR PipelineRenderingCreateInfo;
#endif
// (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.
};
// Called by user code
IMGUI_IMPL_API bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass);
// 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 bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer);
IMGUI_IMPL_API void ImGui_ImplVulkan_DestroyFontUploadObjects();
IMGUI_IMPL_API bool ImGui_ImplVulkan_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplVulkan_DestroyFontsTexture();
IMGUI_IMPL_API void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count); // To override MinImageCount after initialization (e.g. if swap chain is recreated)
// Register a texture (VkDescriptorSet == ImTextureID)
@ -139,10 +174,12 @@ struct ImGui_ImplVulkanH_Window
VkPresentModeKHR PresentMode;
VkRenderPass RenderPass;
VkPipeline Pipeline; // The window pipeline may uses a different VkRenderPass than the one passed in ImGui_ImplVulkan_InitInfo
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)
ImGui_ImplVulkanH_Frame* Frames;
ImGui_ImplVulkanH_FrameSemaphores* FrameSemaphores;
@ -155,3 +192,4 @@ struct ImGui_ImplVulkanH_Window
}
};
#endif // #ifndef IMGUI_DISABLE

89
backends/imgui_impl_wgpu.cpp
View File

@ -8,11 +8,19 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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)
// 2024-01-22: Added configurable PipelineMultisampleState struct. (#7240)
// 2024-01-22: (Breaking) ImGui_ImplWGPU_Init() now takes a ImGui_ImplWGPU_InitInfo structure instead of variety of parameters, allowing for easier further changes.
// 2024-01-22: Fixed pipeline layout leak. (#7245)
// 2024-01-17: Explicitly fill all of WGPUDepthStencilState since standard removed defaults.
// 2023-07-13: Use WGPUShaderModuleWGSLDescriptor's code instead of source. use WGPUMipmapFilterMode_Linear instead of WGPUFilterMode_Linear. (#6602)
// 2023-04-11: Align buffer sizes. Use WGSL shaders instead of precompiled SPIR-V.
// 2023-04-11: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2023-01-25: Revert automatic pipeline layout generation (see https://github.com/gpuweb/gpuweb/issues/2470)
@ -28,6 +36,7 @@
// 2021-01-28: Initial version.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_wgpu.h"
#include <limits.h>
#include <webgpu/webgpu.h>
@ -67,16 +76,17 @@ struct Uniforms
struct ImGui_ImplWGPU_Data
{
WGPUDevice wgpuDevice = nullptr;
WGPUQueue defaultQueue = nullptr;
WGPUTextureFormat renderTargetFormat = WGPUTextureFormat_Undefined;
WGPUTextureFormat depthStencilFormat = WGPUTextureFormat_Undefined;
WGPURenderPipeline pipelineState = nullptr;
ImGui_ImplWGPU_InitInfo initInfo;
WGPUDevice wgpuDevice = nullptr;
WGPUQueue defaultQueue = nullptr;
WGPUTextureFormat renderTargetFormat = WGPUTextureFormat_Undefined;
WGPUTextureFormat depthStencilFormat = WGPUTextureFormat_Undefined;
WGPURenderPipeline pipelineState = nullptr;
RenderResources renderResources;
FrameResources* pFrameResources = nullptr;
unsigned int numFramesInFlight = 0;
unsigned int frameIndex = UINT_MAX;
RenderResources renderResources;
FrameResources* pFrameResources = nullptr;
unsigned int numFramesInFlight = 0;
unsigned int frameIndex = UINT_MAX;
};
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
@ -174,6 +184,12 @@ static void SafeRelease(WGPUBuffer& res)
wgpuBufferRelease(res);
res = nullptr;
}
static void SafeRelease(WGPUPipelineLayout& res)
{
if (res)
wgpuPipelineLayoutRelease(res);
res = nullptr;
}
static void SafeRelease(WGPURenderPipeline& res)
{
if (res)
@ -230,7 +246,7 @@ static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModule(const c
WGPUShaderModuleWGSLDescriptor wgsl_desc = {};
wgsl_desc.chain.sType = WGPUSType_ShaderModuleWGSLDescriptor;
wgsl_desc.source = wgsl_source;
wgsl_desc.code = wgsl_source;
WGPUShaderModuleDescriptor desc = {};
desc.nextInChain = reinterpret_cast<WGPUChainedStruct*>(&wgsl_desc);
@ -324,7 +340,9 @@ static void ImGui_ImplWGPU_SetupRenderState(ImDrawData* draw_data, WGPURenderPas
void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
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->CmdListsCount == 0)
return;
// FIXME: Assuming that this only gets called once per frame!
@ -443,6 +461,12 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
// 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 wgpuRenderPassEncoderSetScissorRect() 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;
@ -511,7 +535,7 @@ static void ImGui_ImplWGPU_CreateFontsTexture()
WGPUSamplerDescriptor sampler_desc = {};
sampler_desc.minFilter = WGPUFilterMode_Linear;
sampler_desc.magFilter = WGPUFilterMode_Linear;
sampler_desc.mipmapFilter = WGPUFilterMode_Linear;
sampler_desc.mipmapFilter = WGPUMipmapFilterMode_Linear;
sampler_desc.addressModeU = WGPUAddressMode_Repeat;
sampler_desc.addressModeV = WGPUAddressMode_Repeat;
sampler_desc.addressModeW = WGPUAddressMode_Repeat;
@ -552,9 +576,7 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
graphics_pipeline_desc.primitive.stripIndexFormat = WGPUIndexFormat_Undefined;
graphics_pipeline_desc.primitive.frontFace = WGPUFrontFace_CW;
graphics_pipeline_desc.primitive.cullMode = WGPUCullMode_None;
graphics_pipeline_desc.multisample.count = 1;
graphics_pipeline_desc.multisample.mask = UINT_MAX;
graphics_pipeline_desc.multisample.alphaToCoverageEnabled = false;
graphics_pipeline_desc.multisample = bd->initInfo.PipelineMultisampleState;
// Bind group layouts
WGPUBindGroupLayoutEntry common_bg_layout_entries[2] = {};
@ -596,9 +618,9 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
// Vertex input configuration
WGPUVertexAttribute attribute_desc[] =
{
{ WGPUVertexFormat_Float32x2, (uint64_t)IM_OFFSETOF(ImDrawVert, pos), 0 },
{ WGPUVertexFormat_Float32x2, (uint64_t)IM_OFFSETOF(ImDrawVert, uv), 1 },
{ WGPUVertexFormat_Unorm8x4, (uint64_t)IM_OFFSETOF(ImDrawVert, col), 2 },
{ WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, pos), 0 },
{ WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, uv), 1 },
{ WGPUVertexFormat_Unorm8x4, (uint64_t)offsetof(ImDrawVert, col), 2 },
};
WGPUVertexBufferLayout buffer_layouts[1];
@ -641,7 +663,13 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
depth_stencil_state.depthWriteEnabled = false;
depth_stencil_state.depthCompare = WGPUCompareFunction_Always;
depth_stencil_state.stencilFront.compare = WGPUCompareFunction_Always;
depth_stencil_state.stencilFront.failOp = WGPUStencilOperation_Keep;
depth_stencil_state.stencilFront.depthFailOp = WGPUStencilOperation_Keep;
depth_stencil_state.stencilFront.passOp = WGPUStencilOperation_Keep;
depth_stencil_state.stencilBack.compare = WGPUCompareFunction_Always;
depth_stencil_state.stencilBack.failOp = WGPUStencilOperation_Keep;
depth_stencil_state.stencilBack.depthFailOp = WGPUStencilOperation_Keep;
depth_stencil_state.stencilBack.passOp = WGPUStencilOperation_Keep;
// Configure disabled depth-stencil state
graphics_pipeline_desc.depthStencil = (bd->depthStencilFormat == WGPUTextureFormat_Undefined) ? nullptr : &depth_stencil_state;
@ -671,6 +699,7 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
SafeRelease(vertex_shader_desc.module);
SafeRelease(pixel_shader_desc.module);
SafeRelease(graphics_pipeline_desc.layout);
SafeRelease(bg_layouts[0]);
return true;
@ -692,9 +721,10 @@ void ImGui_ImplWGPU_InvalidateDeviceObjects()
SafeRelease(bd->pFrameResources[i]);
}
bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format, WGPUTextureFormat depth_format)
bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info)
{
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
// Setup backend capabilities flags
@ -703,11 +733,12 @@ bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextur
io.BackendRendererName = "imgui_impl_webgpu";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
bd->wgpuDevice = device;
bd->initInfo = *init_info;
bd->wgpuDevice = init_info->Device;
bd->defaultQueue = wgpuDeviceGetQueue(bd->wgpuDevice);
bd->renderTargetFormat = rt_format;
bd->depthStencilFormat = depth_format;
bd->numFramesInFlight = num_frames_in_flight;
bd->renderTargetFormat = init_info->RenderTargetFormat;
bd->depthStencilFormat = init_info->DepthStencilFormat;
bd->numFramesInFlight = init_info->NumFramesInFlight;
bd->frameIndex = UINT_MAX;
bd->renderResources.FontTexture = nullptr;
@ -720,8 +751,8 @@ bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextur
bd->renderResources.ImageBindGroupLayout = nullptr;
// Create buffers with a default size (they will later be grown as needed)
bd->pFrameResources = new FrameResources[num_frames_in_flight];
for (int i = 0; i < num_frames_in_flight; i++)
bd->pFrameResources = new FrameResources[bd->numFramesInFlight];
for (unsigned int i = 0; i < bd->numFramesInFlight; i++)
{
FrameResources* fr = &bd->pFrameResources[i];
fr->IndexBuffer = nullptr;
@ -761,3 +792,7 @@ void ImGui_ImplWGPU_NewFrame()
if (!bd->pipelineState)
ImGui_ImplWGPU_CreateDeviceObjects();
}
//-----------------------------------------------------------------------------
#endif // #ifndef IMGUI_DISABLE

31
backends/imgui_impl_wgpu.h
View File

@ -8,14 +8,37 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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 <webgpu/webgpu.h>
IMGUI_IMPL_API bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format, WGPUTextureFormat depth_format = WGPUTextureFormat_Undefined);
// Initialization data, for ImGui_ImplWGPU_Init()
struct ImGui_ImplWGPU_InitInfo
{
WGPUDevice Device;
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);
@ -23,3 +46,5 @@ IMGUI_IMPL_API void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURen
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API void ImGui_ImplWGPU_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplWGPU_CreateDeviceObjects();
#endif // #ifndef IMGUI_DISABLE

132
backends/imgui_impl_win32.cpp
View File

@ -10,31 +10,21 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_win32.h"
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <windowsx.h> // GET_X_LPARAM(), GET_Y_LPARAM()
#include <tchar.h>
#include <dwmapi.h>
// Configuration flags to add in your imconfig.h file:
// Configuration flags to add in your imconfig file:
//#define IMGUI_IMPL_WIN32_DISABLE_GAMEPAD // Disable gamepad support. This was meaningful before <1.81 but we now load XInput dynamically so the option is now less relevant.
// Using XInput for gamepad (will load DLL dynamically)
#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
#include <xinput.h>
typedef DWORD (WINAPI *PFN_XInputGetCapabilities)(DWORD, DWORD, XINPUT_CAPABILITIES*);
typedef DWORD (WINAPI *PFN_XInputGetState)(DWORD, XINPUT_STATE*);
#endif
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2024-07-08: Inputs: Fixed ImGuiMod_Super being mapped to VK_APPS instead of VK_LWIN||VK_RWIN. (#7768)
// 2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F24 function keys, app back/forward keys.
// 2023-09-25: Inputs: Synthesize key-down event on key-up for VK_SNAPSHOT / ImGuiKey_PrintScreen as Windows doesn't emit it (same behavior as GLFW/SDL).
// 2023-09-07: Inputs: Added support for keyboard codepage conversion for when application is compiled in MBCS mode and using a non-Unicode window.
// 2023-04-19: Added ImGui_ImplWin32_InitForOpenGL() to facilitate combining raw Win32/Winapi with OpenGL. (#3218)
// 2023-04-04: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_TouchScreen/ImGuiMouseSource_Pen. (#2702)
// 2023-02-15: Inputs: Use WM_NCMOUSEMOVE / WM_NCMOUSELEAVE to track mouse position over non-client area (e.g. OS decorations) when app is not focused. (#6045, #6162)
@ -84,6 +74,35 @@ typedef DWORD (WINAPI *PFN_XInputGetState)(DWORD, XINPUT_STATE*);
// 2017-10-23: Inputs: Using Win32 ::SetCapture/::GetCapture() to retrieve mouse positions outside the client area when dragging.
// 2016-11-12: Inputs: Only call Win32 ::SetCursor(nullptr) when io.MouseDrawCursor is set.
#include "imgui.h"
#ifndef IMGUI_DISABLE
#include "imgui_impl_win32.h"
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <windowsx.h> // GET_X_LPARAM(), GET_Y_LPARAM()
#include <tchar.h>
#include <dwmapi.h>
// Using XInput for gamepad (will load DLL dynamically)
#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
#include <xinput.h>
typedef DWORD(WINAPI* PFN_XInputGetCapabilities)(DWORD, DWORD, XINPUT_CAPABILITIES*);
typedef DWORD(WINAPI* PFN_XInputGetState)(DWORD, XINPUT_STATE*);
#endif
// Clang/GCC warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wcast-function-type" // warning: cast between incompatible function types (for loader)
#endif
#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wcast-function-type" // warning: cast between incompatible function types (for loader)
#endif
struct ImGui_ImplWin32_Data
{
HWND hWnd;
@ -93,6 +112,7 @@ struct ImGui_ImplWin32_Data
INT64 Time;
INT64 TicksPerSecond;
ImGuiMouseCursor LastMouseCursor;
UINT32 KeyboardCodePage;
#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
bool HasGamepad;
@ -115,9 +135,20 @@ static ImGui_ImplWin32_Data* ImGui_ImplWin32_GetBackendData()
}
// Functions
static void ImGui_ImplWin32_UpdateKeyboardCodePage()
{
// Retrieve keyboard code page, required for handling of non-Unicode Windows.
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
HKL keyboard_layout = ::GetKeyboardLayout(0);
LCID keyboard_lcid = MAKELCID(HIWORD(keyboard_layout), SORT_DEFAULT);
if (::GetLocaleInfoA(keyboard_lcid, (LOCALE_RETURN_NUMBER | LOCALE_IDEFAULTANSICODEPAGE), (LPSTR)&bd->KeyboardCodePage, sizeof(bd->KeyboardCodePage)) == 0)
bd->KeyboardCodePage = CP_ACP; // Fallback to default ANSI code page when fails.
}
static bool ImGui_ImplWin32_InitEx(void* hwnd, bool platform_has_own_dc)
{
ImGuiIO& io = ImGui::GetIO();
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
INT64 perf_frequency, perf_counter;
@ -137,9 +168,11 @@ static bool ImGui_ImplWin32_InitEx(void* hwnd, bool platform_has_own_dc)
bd->TicksPerSecond = perf_frequency;
bd->Time = perf_counter;
bd->LastMouseCursor = ImGuiMouseCursor_COUNT;
ImGui_ImplWin32_UpdateKeyboardCodePage();
// Set platform dependent data in viewport
ImGui::GetMainViewport()->PlatformHandleRaw = (void*)hwnd;
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->PlatformHandle = main_viewport->PlatformHandleRaw = (void*)bd->hWnd;
IM_UNUSED(platform_has_own_dc); // Used in 'docking' branch
// Dynamically load XInput library
@ -262,7 +295,7 @@ static void ImGui_ImplWin32_UpdateKeyModifiers()
io.AddKeyEvent(ImGuiMod_Ctrl, IsVkDown(VK_CONTROL));
io.AddKeyEvent(ImGuiMod_Shift, IsVkDown(VK_SHIFT));
io.AddKeyEvent(ImGuiMod_Alt, IsVkDown(VK_MENU));
io.AddKeyEvent(ImGuiMod_Super, IsVkDown(VK_APPS));
io.AddKeyEvent(ImGuiMod_Super, IsVkDown(VK_LWIN) || IsVkDown(VK_RWIN));
}
static void ImGui_ImplWin32_UpdateMouseData()
@ -353,9 +386,9 @@ static void ImGui_ImplWin32_UpdateGamepads()
void ImGui_ImplWin32_NewFrame()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplWin32_Init()?");
IM_ASSERT(bd != nullptr && "Context or backend not initialized? Did you call ImGui_ImplWin32_Init()?");
ImGuiIO& io = ImGui::GetIO();
// Setup display size (every frame to accommodate for window resizing)
RECT rect = { 0, 0, 0, 0 };
@ -498,6 +531,20 @@ static ImGuiKey ImGui_ImplWin32_VirtualKeyToImGuiKey(WPARAM wParam)
case VK_F10: return ImGuiKey_F10;
case VK_F11: return ImGuiKey_F11;
case VK_F12: return ImGuiKey_F12;
case VK_F13: return ImGuiKey_F13;
case VK_F14: return ImGuiKey_F14;
case VK_F15: return ImGuiKey_F15;
case VK_F16: return ImGuiKey_F16;
case VK_F17: return ImGuiKey_F17;
case VK_F18: return ImGuiKey_F18;
case VK_F19: return ImGuiKey_F19;
case VK_F20: return ImGuiKey_F20;
case VK_F21: return ImGuiKey_F21;
case VK_F22: return ImGuiKey_F22;
case VK_F23: return ImGuiKey_F23;
case VK_F24: return ImGuiKey_F24;
case VK_BROWSER_BACK: return ImGuiKey_AppBack;
case VK_BROWSER_FORWARD: return ImGuiKey_AppForward;
default: return ImGuiKey_None;
}
}
@ -537,11 +584,12 @@ static ImGuiMouseSource GetMouseSourceFromMessageExtraInfo()
IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
if (ImGui::GetCurrentContext() == nullptr)
return 0;
ImGuiIO& io = ImGui::GetIO();
// Most backends don't have silent checks like this one, but we need it because WndProc are called early in CreateWindow().
// We silently allow both context or just only backend data to be nullptr.
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
if (bd == nullptr)
return 0;
ImGuiIO& io = ImGui::GetIO();
switch (msg)
{
@ -563,10 +611,10 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
}
POINT mouse_pos = { (LONG)GET_X_LPARAM(lParam), (LONG)GET_Y_LPARAM(lParam) };
if (msg == WM_NCMOUSEMOVE && ::ScreenToClient(hwnd, &mouse_pos) == FALSE) // WM_NCMOUSEMOVE are provided in absolute coordinates.
break;
return 0;
io.AddMouseSourceEvent(mouse_source);
io.AddMousePosEvent((float)mouse_pos.x, (float)mouse_pos.y);
break;
return 0;
}
case WM_MOUSELEAVE:
case WM_NCMOUSELEAVE:
@ -579,7 +627,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
bd->MouseTrackedArea = 0;
io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
}
break;
return 0;
}
case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK:
case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK:
@ -639,10 +687,14 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
int vk = (int)wParam;
if ((wParam == VK_RETURN) && (HIWORD(lParam) & KF_EXTENDED))
vk = IM_VK_KEYPAD_ENTER;
// Submit key event
const ImGuiKey key = ImGui_ImplWin32_VirtualKeyToImGuiKey(vk);
const int scancode = (int)LOBYTE(HIWORD(lParam));
// Special behavior for VK_SNAPSHOT / ImGuiKey_PrintScreen as Windows doesn't emit the key down event.
if (key == ImGuiKey_PrintScreen && !is_key_down)
ImGui_ImplWin32_AddKeyEvent(key, true, vk, scancode);
// Submit key event
if (key != ImGuiKey_None)
ImGui_ImplWin32_AddKeyEvent(key, is_key_down, vk, scancode);
@ -670,6 +722,9 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
case WM_KILLFOCUS:
io.AddFocusEvent(msg == WM_SETFOCUS);
return 0;
case WM_INPUTLANGCHANGE:
ImGui_ImplWin32_UpdateKeyboardCodePage();
return 0;
case WM_CHAR:
if (::IsWindowUnicode(hwnd))
{
@ -680,7 +735,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
else
{
wchar_t wch = 0;
::MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, (char*)&wParam, 1, &wch, 1);
::MultiByteToWideChar(bd->KeyboardCodePage, MB_PRECOMPOSED, (char*)&wParam, 1, &wch, 1);
io.AddInputCharacter(wch);
}
return 0;
@ -859,3 +914,12 @@ void ImGui_ImplWin32_EnableAlphaCompositing(void* hwnd)
}
//---------------------------------------------------------------------------------------------------------
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
#endif // #ifndef IMGUI_DISABLE

11
backends/imgui_impl_win32.h
View File

@ -10,12 +10,17 @@
// 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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();
@ -44,3 +49,5 @@ IMGUI_IMPL_API float ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor); //
// - 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

49
docs/BACKENDS.md
View File

@ -2,23 +2,10 @@ _(You may browse this at https://github.com/ocornut/imgui/blob/master/docs/BACKE
## Dear ImGui: Backends
**The 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)), GLFW ([imgui_impl_glfw.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_glfw.cpp)), SDL2 ([imgui_impl_sdl2.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_sdl2.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.**
### Integrating backends
💡 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?
@ -38,7 +25,7 @@ Dear ImGui is highly portable and only requires a few things to run and render,
- Optional: multi-viewports support.
etc.
This is essentially what each backend is doing + obligatory portability cruft. Using default 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).
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).
@ -47,11 +34,24 @@ and the backends which we are describing here (backends/ folder).
- 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.
### Standard backends
### Integrating a backend
**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.
See "Getting Started" section of [EXAMPLES.MD](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md) for more details.
- 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)), GLFW ([imgui_impl_glfw.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_glfw.cpp)), SDL2 ([imgui_impl_sdl2.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_sdl2.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 backends
@ -63,7 +63,7 @@ List of Platforms Backends:
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 ; SDL2 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org (*EXPERIMENTAL*)
imgui_impl_sdl3.cpp ; SDL3 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org (*EXPERIMENTAL UNTIL SDL3 IS RELEASED*)
imgui_impl_win32.cpp ; Win32 native API (Windows)
imgui_impl_glut.cpp ; GLUT/FreeGLUT (this is prehistoric software and absolutely not recommended today!)
@ -76,16 +76,17 @@ List of Renderer Backends:
imgui_impl_metal.mm ; Metal (with ObjC)
imgui_impl_opengl2.cpp ; OpenGL 2 (legacy, fixed pipeline <- don't use with modern OpenGL context)
imgui_impl_opengl3.cpp ; OpenGL 3/4, OpenGL ES 2, OpenGL ES 3 (modern programmable pipeline)
imgui_impl_sdlrenderer.cpp; SDL_Renderer (optional component of SDL2 available from SDL 2.0.18+)
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 available from SDL 3.0.0+)
imgui_impl_vulkan.cpp ; Vulkan
imgui_impl_wgpu.cpp ; WebGPU
imgui_impl_wgpu.cpp ; WebGPU (web and desktop)
List of high-level Frameworks Backends (combining Platform + Renderer):
imgui_impl_allegro5.cpp
Emscripten is also supported!
The SDL+GL, GLFW+GL and SDL+WebGPU examples are all ready to build and run with Emscripten.
The SDL+GL, GLFW+GL and GLFW+WebGPU examples are all ready to build and run with Emscripten.
### Backends for third-party frameworks, graphics API or other languages
@ -134,7 +135,7 @@ Generally:
It is unlikely you will add value to your project by creating your own backend.
Also:
The [multi-viewports feature](https://github.com/ocornut/imgui/issues/1542) of the 'docking' branch allows
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

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@ -11,27 +11,30 @@
## 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. [Useful extensions](https://github.com/ocornut/imgui/wiki/Useful-Extensions)).
- 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 read one of the [examples/](https://github.com/ocornut/imgui/tree/master/examples) application if your question relates to setting up Dear ImGui.
- Please run `ImGui::ShowDemoWindow()` to explore the demo and its sources.
- Please use the search function of your IDE to search in for comments related to your situation.
- Please use the search function of GitHub to look for similar issues. You may [browse issues by Labels](https://github.com/ocornut/imgui/labels).
- 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
## 'Issues' vs 'Discussions'
If you:
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.
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
@ -46,16 +49,16 @@ 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 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. Please test your shortened code to ensure it exhibits the problem. **Often while creating the MCVE you will end up solving 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.
- 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 try posting 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 project our time and sanity.
- 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.
@ -63,15 +66,13 @@ If you have been using Dear ImGui for a while or have been using C/C++ for sever
## 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 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.
- 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).
Thank you for reading!
## 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.

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@ -10,7 +10,7 @@ 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:
http://www.dearimgui.com/binaries
https://www.dearimgui.com/binaries
### Getting Started
@ -35,46 +35,13 @@ At shutdown:
call ImGui::DestroyContext()
```
Example (using [backends/imgui_impl_win32.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_win32.cpp) + [backends/imgui_impl_dx11.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_dx11.cpp)):
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.
```cpp
// Create a Dear ImGui context, setup some options
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO();
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable some options
// Initialize Platform + Renderer backends (here: using imgui_impl_win32.cpp + imgui_impl_dx11.cpp)
ImGui_ImplWin32_Init(my_hwnd);
ImGui_ImplDX11_Init(my_d3d_device, my_d3d_device_context);
// Application main loop
while (true)
{
// Beginning of frame: update Renderer + Platform backend, start Dear ImGui frame
ImGui_ImplDX11_NewFrame();
ImGui_ImplWin32_NewFrame();
ImGui::NewFrame();
// Any application code here
ImGui::Text("Hello, world!");
// End of frame: render Dear ImGui
ImGui::Render();
ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
// Swap
g_pSwapChain->Present(1, 0);
}
// Shutdown
ImGui_ImplDX11_Shutdown();
ImGui_ImplWin32_Shutdown();
ImGui::DestroyContext();
```
Please read 'PROGRAMMER GUIDE' in imgui.cpp for notes on how to setup Dear ImGui in your codebase.
Please read the comments and instruction at the top of each file.
Please read FAQ at http://www.dearimgui.com/faq
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
@ -104,8 +71,8 @@ OSX + OpenGL2 example. <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_emscripten_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_emscripten_wgpu/) <BR>
Emcripten + GLFW + WebGPU example. <BR>
[example_glfw_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_glfw_wgpu/) <BR>
GLFW + WebGPU example. Supports Emscripten (web) or Dawn (desktop) <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!
@ -126,7 +93,7 @@ state, and might confuse your GPU driver. One star, not recommended.
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 targetting WebGL.<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>
@ -168,14 +135,13 @@ state, and might confuse your GPU driver. One star, not recommended.
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 targetting WebGL.<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_sdlrenderer/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_sdlrenderer/) <BR>
SDL2 (Win32, Mac, Linux, etc.) + SDL_Renderer (most graphics backends are supported underneath) <BR>
[example_sdl2_sdlrenderer2/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_sdlrenderer2/) <BR>
SDL2 (Win32, Mac, Linux, etc.) + SDL_Renderer for SDL2 (most graphics backends are supported underneath) <BR>
= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_sdlrenderer.cpp <BR>
This requires SDL 2.0.18+ (released November 2021) <BR>
We do not really recommend using SDL_Renderer as it is a rather primitive API.
[example_sdl2_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_vulkan/) <BR>
SDL2 (Win32, Mac, Linux, etc.) + Vulkan example. <BR>

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@ -23,7 +23,7 @@ or view this file with any Markdown viewer.
| [I integrated Dear ImGui in my engine and some elements are clipping or disappearing when I move windows around...](#q-i-integrated-dear-imgui-in-my-engine-and-some-elements-are-clipping-or-disappearing-when-i-move-windows-around) |
| [I integrated Dear ImGui in my engine and some elements are displaying outside their expected windows boundaries...](#q-i-integrated-dear-imgui-in-my-engine-and-some-elements-are-displaying-outside-their-expected-windows-boundaries) |
| **Q&A: Usage** |
| **[About the ID Stack system..<br>Why is my widget not reacting when I click on it?<br>How can I have widgets with an empty label?<br>How can I have multiple widgets with the same label?<br>How can I have multiple windows with the same label?](#q-about-the-id-stack-system)** |
| **[About the ID Stack system..<br>Why is my widget not reacting when I click on it?<br>Why is the wrong widget reacting when I click on one?<br>How can I have widgets with an empty label?<br>How can I have multiple widgets with the same label?<br>How can I have multiple windows with the same label?](#q-about-the-id-stack-system)** |
| [How can I display an image? What is ImTextureID, how does it work?](#q-how-can-i-display-an-image-what-is-imtextureid-how-does-it-work)|
| [How can I use maths operators with ImVec2?](#q-how-can-i-use-maths-operators-with-imvec2) |
| [How can I use my own maths types instead of ImVec2/ImVec4?](#q-how-can-i-use-my-own-maths-types-instead-of-imvec2imvec4) |
@ -50,7 +50,8 @@ or view this file with any Markdown viewer.
**This library is poorly documented at the moment and expects the user to be acquainted with C/C++.**
- The [Wiki](https://github.com/ocornut/imgui/wiki) is a hub to many resources and links.
- Dozens of standalone example applications using e.g. OpenGL/DirectX are provided in the [examples/](https://github.com/ocornut/imgui/blob/master/examples/) folder to explain how to integrate Dear ImGui with your own engine/application. You can run those applications and explore them.
- Handy [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) guide to integrate Dear ImGui in an existing application.
- 20+ standalone example applications using e.g. OpenGL/DirectX are provided in the [examples/](https://github.com/ocornut/imgui/blob/master/examples/) folder to explain how to integrate Dear ImGui with your own engine/application. You can run those applications and explore them.
- See demo code in [imgui_demo.cpp](https://github.com/ocornut/imgui/blob/master/imgui_demo.cpp) and particularly the `ImGui::ShowDemoWindow()` function. The demo covers most features of Dear ImGui, so you can read the code and see its output.
- See documentation: [Backends](https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md), [Examples](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md), [Fonts](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md).
- See documentation and comments at the top of [imgui.cpp](https://github.com/ocornut/imgui/blob/master/imgui.cpp) + general API comments in [imgui.h](https://github.com/ocornut/imgui/blob/master/imgui.h).
@ -76,9 +77,9 @@ or view this file with any Markdown viewer.
### Q: Which version should I get?
I occasionally tag [Releases](https://github.com/ocornut/imgui/releases) but it is generally safe and recommended to sync to master/latest. The library is fairly stable and regressions tend to be fixed fast when reported.
You may use the [docking](https://github.com/ocornut/imgui/tree/docking) branch which includes:
- [Docking features](https://github.com/ocornut/imgui/issues/2109)
- [Multi-viewport features](https://github.com/ocornut/imgui/issues/1542)
You may use the ['docking'](https://github.com/ocornut/imgui/tree/docking) branch which includes:
- [Docking features](https://github.com/ocornut/imgui/wiki/Docking)
- [Multi-viewport features](https://github.com/ocornut/imgui/wiki/Multi-Viewports)
Many projects are using this branch and it is kept in sync with master regularly.
@ -90,6 +91,7 @@ Many projects are using this branch and it is kept in sync with master regularly
### Q: How to get started?
Read [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started). <BR>
Read [EXAMPLES.md](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md). <BR>
Read [BACKENDS.md](https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md). <BR>
Read `PROGRAMMER GUIDE` section of [imgui.cpp](https://github.com/ocornut/imgui/blob/master/imgui.cpp). <BR>
@ -123,13 +125,8 @@ void MyLowLevelMouseButtonHandler(int button, bool down)
}
```
**Note:** The `io.WantCaptureMouse` is more correct that any manual attempt to "check if the mouse is hovering a window" (don't do that!). It handles mouse dragging correctly (both dragging that started over your application or over a Dear ImGui window) and handle e.g. popup and modal windows blocking inputs.
**Note:** Those flags are updated by `ImGui::NewFrame()`. However it is generally more correct and easier that you poll flags from the previous frame, then submit your inputs, then call `NewFrame()`. If you attempt to do the opposite (which is generally harder) you are likely going to submit your inputs after `NewFrame()`, and therefore too late.
**Note:** If you are using a touch device, you may find use for an early call to `UpdateHoveredWindowAndCaptureFlags()` to correctly dispatch your initial touch. We will work on better out-of-the-box touch support in the future.
**Note:** Text input widget releases focus on the "KeyDown" event of the Return key, so the subsequent "KeyUp" event that your application receive will typically have `io.WantCaptureKeyboard == false`. Depending on your application logic it may or not be inconvenient to receive that KeyUp event. You might want to track which key-downs were targeted for Dear ImGui, e.g. with an array of bool, and filter out the corresponding key-ups.)
##### [Return to Index](#index)
@ -140,7 +137,7 @@ void MyLowLevelMouseButtonHandler(int button, bool down)
- The gamepad/keyboard navigation is fairly functional and keeps being improved. The initial focus was to support game controllers, but keyboard is becoming increasingly and decently usable. Gamepad support is particularly useful to use Dear ImGui on a game console (e.g. PS4, Switch, XB1) without a mouse connected!
- Keyboard: set `io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard` to enable.
- Gamepad: set `io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad` to enable (with a supporting backend).
- See [Control Sheets for Gamepads](http://www.dearimgui.com/controls_sheets) (reference PNG/PSD for PS4, XB1, Switch gamepads).
- See [Control Sheets for Gamepads](https://www.dearimgui.com/controls_sheets) (reference PNG/PSD for PS4, XB1, Switch gamepads).
- See `USING GAMEPAD/KEYBOARD NAVIGATION CONTROLS` section of [imgui.cpp](https://github.com/ocornut/imgui/blob/master/imgui.cpp) for more details.
##### [Return to Index](#index)
@ -163,8 +160,8 @@ Console SDK also sometimes provide equivalent tooling or wrapper for Synergy-lik
---
### Q: I integrated Dear ImGui in my engine and little squares are showing instead of text...
Your renderer is not using the font texture correctly or it hasn't been uploaded to the GPU.
- If this happens using the standard backends: A) have you modified the font atlas after `ImGui_ImplXXX_NewFrame()`? B) maybe the texture failed to upload, which could happens if for some reason your texture is too big. Also see [docs/FONTS.md](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md).
Your renderer backend is not using the font texture correctly or it hasn't been uploaded to the GPU.
- If this happens using the standard backends: A) have you modified the font atlas after `ImGui_ImplXXX_NewFrame()`? B) maybe the texture failed to upload, which **can if your texture atlas is too big**. Also see [docs/FONTS.md](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md).
- If this happens with a custom backend: make sure you have uploaded the font texture to the GPU, that all shaders are rendering states are setup properly (e.g. texture is bound). Compare your code to existing backends and use a graphics debugger such as [RenderDoc](https://renderdoc.org) to debug your rendering states.
##### [Return to Index](#index)
@ -202,10 +199,43 @@ ctx->RSSetScissorRects(1, &r);
### Q: About the ID Stack system...
### Q: Why is my widget not reacting when I click on it?
### Q: Why is the wrong widget reacting when I click on one?
### Q: How can I have widgets with an empty label?
### Q: How can I have multiple widgets with the same label?
### Q: How can I have multiple windows with the same label?
**USING THE SAME LABEL+ID IS THE MOST COMMON USER MISTAKE!**
<br>**USING AN EMPTY LABEL IS THE SAME AS USING THE SAME LABEL AS YOUR PARENT WIDGET!**
<table>
<tr>
<td><img src="https://github.com/user-attachments/assets/776a8315-1164-4178-9a8c-df52e0ff28aa"></td>
<td>
<pre lang="cpp">
ImGui::Begin("Incorrect!");
ImGui::DragFloat2("My value", &objects[0]->pos.x);
ImGui::DragFloat2("My value", &objects[1]->pos.x);
ImGui::DragFloat2("My value", &objects[2]->pos.x);
ImGui::End();
&nbsp;
ImGui::Begin("Correct!");
ImGui::DragFloat2("My value", &objects[0]->pos.x);
ImGui::DragFloat2("My value##2", &objects[1]->pos.x);
ImGui::DragFloat2("My value##3", &objects[2]->pos.x);
ImGui::End();
&nbsp;
ImGui::Begin("Also Correct!");
for (int n = 0; n < 3; n++)
{
ImGui::PushID(n);
ImGui::DragFloat2("My value", &objects[n]->pos.x);
ImGui::PopID();
}
ImGui::End();
</pre>
</td>
</tr>
</table>
A primer on labels and the ID Stack...
Dear ImGui internally needs to uniquely identify UI elements.
@ -215,7 +245,7 @@ Interactive widgets (such as calls to Button buttons) need a unique ID.
**Unique IDs are used internally to track active widgets and occasionally associate state to widgets.<BR>
Unique IDs are implicitly built from the hash of multiple elements that identify the "path" to the UI element.**
Since Dear ImGui 1.85, you can use `Demo>Tools>Stack Tool` or call `ImGui::ShowStackToolWindow()`. The tool display intermediate values leading to the creation of a unique ID, making things easier to debug and understand.
Since Dear ImGui 1.85, you can use `Demo>Tools>ID Stack Tool` or call `ImGui::ShowIDStackToolWindow()`. The tool display intermediate values leading to the creation of a unique ID, making things easier to debug and understand.
![Stack tool](https://user-images.githubusercontent.com/8225057/136235657-a0ea5665-dcd1-423f-9be6-dc3f8ced8f12.png)
@ -429,7 +459,7 @@ Finally, you may call `ImGui::ShowMetricsWindow()` to explore/visualize/understa
### Q: How can I use maths operators with ImVec2?
We do not export maths operators by default in imgui.h in order to not conflict with the use of your own maths types and maths operators. As a convenience, you may use `#defne IMGUI_DEFINE_MATH_OPERATORS` + `#include "imgui.h"` to access our basic maths operators.
We do not export maths operators by default in imgui.h in order to not conflict with the use of your own maths types and maths operators. As a convenience, you may use `#define IMGUI_DEFINE_MATH_OPERATORS` + `#include "imgui.h"` to access our basic maths operators.
##### [Return to Index](#index)
@ -528,7 +558,7 @@ This approach is relatively easy and functional but comes with two issues:
- Style override may be lost during the `Begin()` call crossing monitor boundaries. You may need to do some custom scaling mumbo-jumbo if you want your `OnChangedViewport()` handler to preserve style overrides.
Please note that if you are not using multi-viewports with multi-monitors using different DPI scales, you can ignore that and use the simpler technique recommended at the top.
On Windows, in addition to scaling the font size (make sure to round to an integer) and using `style.ScaleAllSizes()`, you will need to inform Windows that your application is DPI aware. If this is not done, Windows will scale the application window and the UI text will be blurry. Potential solutions to indicate DPI awareness on Windows are:
- For SDL: the flag `SDL_WINDOW_ALLOW_HIGHDPI` needs to be passed to `SDL_CreateWindow()``.
@ -568,44 +598,15 @@ io.Fonts->AddFontFromFileTTF("MyFolder/MyFont.ttf", size); // ALSO CORRECT
### Q: How can I easily use icons in my application?
The most convenient and practical way is to merge an icon font such as FontAwesome inside your
main font. Then you can refer to icons within your strings.
You may want to see `ImFontConfig::GlyphMinAdvanceX` to make your icon look monospace to facilitate alignment.
(Read the [docs/FONTS.md](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md) file for more details about icons font loading.)
With some extra effort, you may use colorful icons by registering custom rectangle space inside the font atlas,
and copying your own graphics data into it. See docs/FONTS.md about using the AddCustomRectFontGlyph API.
Read the [docs/FONTS.md](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md) file for more details about icons font loading.
##### [Return to Index](#index)
---
### Q: How can I load multiple fonts?
Use the font atlas to pack them into a single texture:
(Read the [docs/FONTS.md](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md) file and the code in ImFontAtlas for more details.)
```cpp
ImGuiIO& io = ImGui::GetIO();
ImFont* font0 = io.Fonts->AddFontDefault();
ImFont* font1 = io.Fonts->AddFontFromFileTTF("myfontfile.ttf", size_in_pixels);
ImFont* font2 = io.Fonts->AddFontFromFileTTF("myfontfile2.ttf", size_in_pixels);
io.Fonts->GetTexDataAsRGBA32() or GetTexDataAsAlpha8()
// the first loaded font gets used by default
// use ImGui::PushFont()/ImGui::PopFont() to change the font at runtime
// Options
ImFontConfig config;
config.OversampleH = 2;
config.OversampleV = 1;
config.GlyphOffset.y -= 1.0f; // Move everything by 1 pixel up
config.GlyphExtraSpacing.x = 1.0f; // Increase spacing between characters
io.Fonts->AddFontFromFileTTF("myfontfile.ttf", size_pixels, &config);
// Combine multiple fonts into one (e.g. for icon fonts)
static ImWchar ranges[] = { 0xf000, 0xf3ff, 0 };
ImFontConfig config;
config.MergeMode = true;
io.Fonts->AddFontDefault();
io.Fonts->AddFontFromFileTTF("fontawesome-webfont.ttf", 16.0f, &config, ranges); // Merge icon font
io.Fonts->AddFontFromFileTTF("myfontfile.ttf", size_pixels, nullptr, &config, io.Fonts->GetGlyphRangesJapanese()); // Merge japanese glyphs
```
Use the font atlas to pack them into a single texture. Read [docs/FONTS.md](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md) for more details.
##### [Return to Index](#index)
@ -639,7 +640,7 @@ The applications in examples/ are doing that.
Windows: you can use the WM_CHAR or WM_UNICHAR or WM_IME_CHAR message (depending if your app is built using Unicode or MultiByte mode).
You may also use `MultiByteToWideChar()` or `ToUnicode()` to retrieve Unicode codepoints from MultiByte characters or keyboard state.
Windows: if your language is relying on an Input Method Editor (IME), you can write your HWND to ImGui::GetMainViewport()->PlatformHandleRaw
for the default implementation of io.SetPlatformImeDataFn() to set your Microsoft IME position correctly.
for the default implementation of GetPlatformIO().Platform_SetImeDataFn() to set your Microsoft IME position correctly.
##### [Return to Index](#index)
@ -653,8 +654,8 @@ You may take a look at:
- [Quotes](https://github.com/ocornut/imgui/wiki/Quotes)
- [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui)
- [Sponsors](https://github.com/ocornut/imgui/wiki/Sponsors)
- [Gallery](https://github.com/ocornut/imgui/issues/5886)
- [Funding & Sponsors](https://github.com/ocornut/imgui/wiki/Funding)
- [Gallery](https://github.com/ocornut/imgui/issues?q=label%3Agallery)
##### [Return to Index](#index)
@ -696,11 +697,11 @@ There is an auto-generated [c-api for Dear ImGui (cimgui)](https://github.com/ci
# Q&A: Community
### Q: How can I help?
- Businesses: please reach out to `contact AT dearimgui.com` if you work in a place using Dear ImGui! We can discuss ways for your company to fund development via invoiced technical support, maintenance, or sponsoring contacts. This is among the most useful thing you can do for Dear ImGui. With increased funding, we can hire more people to work on this project.
- Businesses: please reach out to `omar AT dearimgui.com` if you work in a place using Dear ImGui! We can discuss ways for your company to fund development via invoiced technical support, maintenance, or sponsoring contacts. This is among the most useful thing you can do for Dear ImGui. With increased funding, we can hire more people to work on this project. Please see [Funding](https://github.com/ocornut/imgui/wiki/Funding) page.
- Individuals: you can support continued maintenance and development via PayPal donations. See [README](https://github.com/ocornut/imgui/blob/master/docs/README.md).
- If you are experienced with Dear ImGui and C++, look at [GitHub Issues](https://github.com/ocornut/imgui/issues), [GitHub Discussions](https://github.com/ocornut/imgui/discussions), the [Wiki](https://github.com/ocornut/imgui/wiki), read [docs/TODO.txt](https://github.com/ocornut/imgui/blob/master/docs/TODO.txt), and see how you want to help and can help!
- Disclose your usage of Dear ImGui via a dev blog post, a tweet, a screenshot, a mention somewhere, etc.
You may post screenshots or links in the [gallery threads](https://github.com/ocornut/imgui/issues/5886). Visuals are ideal as they inspire other programmers. Disclosing your use of Dear ImGui helps the library grow credibility, and helps other teams and programmers with taking decisions.
You may post screenshots or links in the [gallery threads](https://github.com/ocornut/imgui/issues?q=label%3Agallery). Visuals are ideal as they inspire other programmers. Disclosing your use of Dear ImGui helps the library grow credibility, and helps other teams and programmers with taking decisions.
- If you have issues or if you need to hack into the library, even if you don't expect any support it is useful that you share your issues or sometimes incomplete PR.
##### [Return to Index](#index)

290
docs/FONTS.md
View File

@ -11,118 +11,62 @@ In the [misc/fonts/](https://github.com/ocornut/imgui/tree/master/misc/fonts) fo
**Also read the FAQ:** https://www.dearimgui.com/faq (there is a Fonts section!)
## Index
- [Readme First](#readme-first)
- [About Filenames](#about-filenames)
- [About UTF-8 Encoding](#about-utf-8-encoding)
- [Debug Tools](#debug-tools)
- [Troubleshooting](#troubleshooting)
- [How should I handle DPI in my application?](#how-should-i-handle-dpi-in-my-application)
- [Fonts Loading Instructions](#fonts-loading-instructions)
- [Loading Font Data from Memory](#loading-font-data-from-memory)
- [Loading Font Data Embedded In Source Code](#loading-font-data-embedded-in-source-code)
- [Using Icon Fonts](#using-icon-fonts)
- [Using FreeType Rasterizer (imgui_freetype)](#using-freetype-rasterizer-imgui_freetype)
- [Using Colorful Glyphs/Emojis](#using-colorful-glyphsemojis)
- [Using Custom Glyph Ranges](#using-custom-glyph-ranges)
- [Using Custom Colorful Icons](#using-custom-colorful-icons)
- [Using Font Data Embedded In Source Code](#using-font-data-embedded-in-source-code)
- [About Filenames](#about-filenames)
- [About UTF-8 Encoding](#about-utf-8-encoding)
- [Debug Tools](#debug-tools)
- [Credits/Licenses For Fonts Included In Repository](#creditslicenses-for-fonts-included-in-repository)
- [Font Links](#font-links)
---------------------------------------
## Readme First
## Troubleshooting
**A vast majority of font and text related issues encountered comes from 3 things:**
- Invalid filename due to use of `\` or unexpected working directory. See [About Filenames](#about-filenames). AddFontXXX functions should assert if the filename is incorrect.
- Invalid UTF-8 encoding of your non-ASCII strings. See [About UTF-8 Encoding](#about-utf-8-encoding). Use the encoding viewer to confirm yours is correct.
- You need to load a font with explicit glyph ranges if you want to use non-ASCII characters. See [Fonts Loading Instructions](#fonts-loading-instructions). Use Metrics/Debugger->Fonts to confirm loaded fonts and loaded glyph ranges.
**A vast majority of font and text related issues encountered comes from 4 things:**
The third point is a current constraint of Dear ImGui (which we will lift in the future): when loading a font you need to specify which characters glyphs to load.
All loaded fonts glyphs are rendered into a single texture atlas ahead of time. Calling either of `io.Fonts->GetTexDataAsAlpha8()`, `io.Fonts->GetTexDataAsRGBA32()` or `io.Fonts->Build()` will build the atlas. This is generally called by the Renderer backend, e.g. `ImGui_ImplDX11_NewFrame()` calls it.
### (1) Invalid filename due to use of `\` or unexpected working directory.
**If you use custom glyphs ranges, make sure the array is persistent** and available during the calls to `GetTexDataAsAlpha8()/GetTexDataAsRGBA32()/Build()`.
##### [Return to Index](#index)
## About Filenames
**Please note that many new C/C++ users have issues loading their files _because the filename they provide is wrong_ due to incorrect assumption of what is the current directory.**
Two things to watch for:
(1) In C/C++ and most programming languages if you want to use a backslash `\` within a string literal, you need to write it double backslash `\\`. At it happens, Windows uses backslashes as a path separator, so be mindful.
```cpp
io.Fonts->AddFontFromFileTTF("MyFiles\MyImage01.jpg", ...); // This is INCORRECT!!
io.Fonts->AddFontFromFileTTF("MyFiles\\MyImage01.jpg", ...); // This is CORRECT
```
In some situations, you may also use `/` path separator under Windows.
(2) Make sure your IDE/debugger settings starts your executable from the right working (current) directory. In Visual Studio you can change your working directory in project `Properties > General > Debugging > Working Directory`. People assume that their execution will start from the root folder of the project, where by default it often starts from the folder where object or executable files are stored.
```cpp
io.Fonts->AddFontFromFileTTF("MyImage01.jpg", ...); // Relative filename depends on your Working Directory when running your program!
io.Fonts->AddFontFromFileTTF("../MyImage01.jpg", ...); // Load from the parent folder of your Working Directory
```
##### [Return to Index](#index)
## About UTF-8 Encoding
**For non-ASCII characters display, a common user issue is not passing correctly UTF-8 encoded strings.**
(1) We provide a function `ImGui::DebugTextEncoding(const char* text)` which you can call to verify the content of your UTF-8 strings.
This is a convenient way to confirm that your encoding is correct.
```cpp
ImGui::SeparatorText("CORRECT");
ImGui::DebugTextEncoding(u8"こんにちは");
ImGui::SeparatorText("INCORRECT");
ImGui::DebugTextEncoding("こんにちは");
```
![UTF-8 Encoding viewer](https://github.com/ocornut/imgui/assets/8225057/61c1696a-9a94-46c5-9627-cf91211111f0)
You can also find this tool under `Metrics/Debuggers->Tools->UTF-8 Encoding viewer` if you want to paste from clipboard, but this won't validate the UTF-8 encoding done by your compiler.
(2) To encode in UTF-8:
There are also compiler-specific ways to enforce UTF-8 encoding by default:
- Visual Studio compiler: `/utf-8` command-line flag.
- Visual Studio compiler: `#pragma execution_character_set("utf-8")` inside your code.
- Since May 2023 we have changed the Visual Studio projects of all our examples to use `/utf-8` ([see commit](https://github.com/ocornut/imgui/commit/513af1efc9080857bbd10000d98f98f2a0c96803)).
Or, since C++11, you can use the `u8"my text"` syntax to encode literal strings as UTF-8. e.g.:
```cpp
ImGui::Text(u8"hello");
ImGui::Text(u8"こんにちは"); // this will always be encoded as UTF-8
ImGui::Text("こんにちは"); // the encoding of this is depending on compiler settings/flags and may be incorrect.
```
Since C++20, because the C++ committee hate its users, they decided to change the `u8""` syntax to not return `const char*` but a new type `const char_t*` which doesn't cast to `const char*`.
Because of type usage of `u8""` in C++20 is a little more tedious:
```cpp
ImGui::Text((const char*)u8"こんにちは");
```
We suggest using a macro in your codebase:
```cpp
#define U8(_S) (const char*)u8##_S
ImGui::Text(U8("こんにちは"));
```
##### [Return to Index](#index)
## Debug Tools
#### Metrics/Debugger->Fonts
You can use the `Metrics/Debugger` window (available in `Demo>Tools`) to browse your fonts and understand what's going on if you have an issue. You can also reach it in `Demo->Tools->Style Editor->Fonts`. The same information are also available in the Style Editor under Fonts.
![Fonts debugging](https://user-images.githubusercontent.com/8225057/135429892-0e41ef8d-33c5-4991-bcf6-f997a0bcfd6b.png)
#### UTF-8 Encoding Viewer**
You can use the `UTF-8 Encoding viewer` in `Metrics/Debugger` to verify the content of your UTF-8 strings. From C/C++ code, you can call `ImGui::DebugTextEncoding("my string");` function to verify that your UTF-8 encoding is correct.
![UTF-8 Encoding viewer](https://user-images.githubusercontent.com/8225057/166505963-8a0d7899-8ee8-4558-abb2-1ae523dc02f9.png)
See [About Filenames](#about-filenames). AddFontXXX functions should assert if the filename is incorrect.
### (2) Invalid UTF-8 encoding of your non-ASCII strings.
See [About UTF-8 Encoding](#about-utf-8-encoding). Use the encoding viewer to confirm encoding of string literal in your source code is correct.
### (3) Missing glyph ranges.
You need to load a font with explicit glyph ranges if you want to use non-ASCII characters. See [Fonts Loading Instructions](#fonts-loading-instructions). Use [Debug Tools](#debug-tools) confirm loaded fonts and loaded glyph ranges.
This is a current constraint of Dear ImGui (which we will lift in the future): when loading a font you need to specify which characters glyphs to load.
All loaded fonts glyphs are rendered into a single texture atlas ahead of time. Calling either of `io.Fonts->GetTexDataAsAlpha8()`, `io.Fonts->GetTexDataAsRGBA32()` or `io.Fonts->Build()` will build the atlas. This is generally called by the Renderer backend, e.g. `ImGui_ImplDX11_NewFrame()` calls it. **If you use custom glyphs ranges, make sure the array is persistent** and available during the calls to `GetTexDataAsAlpha8()/GetTexDataAsRGBA32()/Build()`.
### (4) Font atlas texture fails to upload to GPU.
This is often of byproduct of point 3. If you have large number of glyphs or multiple fonts, the texture may become too big for your graphics API. **The typical result of failing to upload a texture is if every glyph or everything appears as empty white rectangles.** Mind the fact that some graphics drivers have texture size limitation. If you are building a PC application, mind the fact that your users may use hardware with lower limitations than yours.
![empty squares](https://github.com/user-attachments/assets/68b50fb5-8b9d-4c38-baec-6ac384f06d26)
Some solutions:
- You may reduce oversampling, e.g. `font_config.OversampleH = 1`, this will half your texture size for a quality loss.
Note that while OversampleH = 2 looks visibly very close to 3 in most situations, with OversampleH = 1 the quality drop will be noticeable. Read about oversampling [here](https://github.com/nothings/stb/blob/master/tests/oversample).
- Reduce glyphs ranges by calculating them from source localization data.
You can use the `ImFontGlyphRangesBuilder` for this purpose and rebuilding your atlas between frames when new characters are needed. This will be the biggest win!
- Set `io.Fonts.Flags |= ImFontAtlasFlags_NoPowerOfTwoHeight;` to disable rounding the texture height to the next power of two.
- Set `io.Fonts.TexDesiredWidth` to specify a texture width to reduce maximum texture height (see comment in `ImFontAtlas::Build()` function).
Future versions of Dear ImGui should solve this problem.
##### [Return to Index](#index)
---------------------------------------
## How should I handle DPI in my application?
@ -130,6 +74,7 @@ See [FAQ entry](https://github.com/ocornut/imgui/blob/master/docs/FAQ.md#q-how-s
##### [Return to Index](#index)
---------------------------------------
## Fonts Loading Instructions
@ -144,7 +89,7 @@ io.Fonts->AddFontDefault();
ImGuiIO& io = ImGui::GetIO();
io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
```
If you get an assert stating "Could not load font file!", your font filename is likely incorrect. Read "[About filenames](#about-filenames)" carefully.
If you get an assert stating "Could not load font file!", your font filename is likely incorrect. Read [About filenames](#about-filenames) carefully.
**Load multiple fonts:**
```cpp
@ -153,8 +98,9 @@ ImGuiIO& io = ImGui::GetIO();
ImFont* font1 = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
ImFont* font2 = io.Fonts->AddFontFromFileTTF("anotherfont.otf", size_pixels);
```
In your application loop, select which font to use:
```cpp
// In application loop: select font at runtime
ImGui::Text("Hello"); // use the default font (which is the first loaded font)
ImGui::PushFont(font2);
ImGui::Text("Hello with another font");
@ -200,7 +146,6 @@ io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, nullptr, io.Fonts->GetGlyp
```
See [Using Custom Glyph Ranges](#using-custom-glyph-ranges) section to create your own ranges.
**Example loading and using a Japanese font:**
```cpp
@ -220,24 +165,50 @@ ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
![sample code output](https://raw.githubusercontent.com/wiki/ocornut/imgui/web/v160/code_sample_02_jp.png)
<br>_(settings: Dark style (left), Light style (right) / Font: NotoSansCJKjp-Medium, 20px / Rounding: 5)_
**Font Atlas too large?**
##### [Return to Index](#index)
- If you have very large number of glyphs or multiple fonts, the texture may become too big for your graphics API. The typical result of failing to upload a texture is if every glyph appears as a white rectangle.
- Mind the fact that some graphics drivers have texture size limitation. If you are building a PC application, mind the fact that your users may use hardware with lower limitations than yours.
---------------------------------------
Some solutions:
## Loading Font Data from Memory
1. Reduce glyphs ranges by calculating them from source localization data.
You can use the `ImFontGlyphRangesBuilder` for this purpose and rebuilding your atlas between frames when new characters are needed. This will be the biggest win!
2. You may reduce oversampling, e.g. `font_config.OversampleH = 2`, this will largely reduce your texture size.
Note that while OversampleH = 2 looks visibly very close to 3 in most situations, with OversampleH = 1 the quality drop will be noticeable.
3. Set `io.Fonts.TexDesiredWidth` to specify a texture width to minimize texture height (see comment in `ImFontAtlas::Build()` function).
4. Set `io.Fonts.Flags |= ImFontAtlasFlags_NoPowerOfTwoHeight;` to disable rounding the texture height to the next power of two.
5. Read about oversampling [here](https://github.com/nothings/stb/blob/master/tests/oversample).
6. To support the extended range of unicode beyond 0xFFFF (e.g. emoticons, dingbats, symbols, shapes, ancient languages, etc...) add `#define IMGUI_USE_WCHAR32`in your `imconfig.h`.
```cpp
ImFont* font = io.Fonts->AddFontFromMemoryTTF(data, data_size, size_pixels, ...);
```
IMPORTANT: `AddFontFromMemoryTTF()` by default transfer ownership of the data buffer to the font atlas, which will attempt to free it on destruction.
This was to avoid an unnecessary copy, and is perhaps not a good API (a future version will redesign it).
If you want to keep ownership of the data and free it yourself, you need to clear the `FontDataOwnedByAtlas` field:
```cpp
ImFontConfig font_cfg;
font_cfg.FontDataOwnedByAtlas = false;
ImFont* font = io.Fonts->AddFontFromMemoryTTF(data, data_size, size_pixels, &font_cfg);
```
##### [Return to Index](#index)
---------------------------------------
## Loading Font Data Embedded In Source Code
- Compile and use [binary_to_compressed_c.cpp](https://github.com/ocornut/imgui/blob/master/misc/fonts/binary_to_compressed_c.cpp) to create a compressed C style array that you can embed in source code.
- See the documentation in [binary_to_compressed_c.cpp](https://github.com/ocornut/imgui/blob/master/misc/fonts/binary_to_compressed_c.cpp) for instructions on how to use the tool.
- You may find a precompiled version binary_to_compressed_c.exe for Windows inside the demo binaries package (see [README](https://github.com/ocornut/imgui/blob/master/docs/README.md)).
- The tool can optionally output Base85 encoding to reduce the size of _source code_ but the read-only arrays in the actual binary will be about 20% bigger.
Then load the font with:
```cpp
ImFont* font = io.Fonts->AddFontFromMemoryCompressedTTF(compressed_data, compressed_data_size, size_pixels, ...);
```
or
```cpp
ImFont* font = io.Fonts->AddFontFromMemoryCompressedBase85TTF(compressed_data_base85, size_pixels, ...);
```
##### [Return to Index](#index)
---------------------------------------
## Using Icon Fonts
Using an icon font (such as [FontAwesome](http://fontawesome.io) or [OpenFontIcons](https://github.com/traverseda/OpenFontIcons)) is an easy and practical way to use icons in your Dear ImGui application.
@ -270,11 +241,19 @@ ImGui::Button(ICON_FA_SEARCH " Search");
```
See Links below for other icons fonts and related tools.
**Monospace Icons?**
To make your icon look more monospace and facilitate alignment, you may want to set the ImFontConfig::GlyphMinAdvanceX value when loading an icon font.
**Screenshot**
Here's an application using icons ("Avoyd", https://www.avoyd.com):
![avoyd](https://user-images.githubusercontent.com/8225057/81696852-c15d9e80-9464-11ea-9cab-2a4d4fc84396.jpg)
##### [Return to Index](#index)
---------------------------------------
## Using FreeType Rasterizer (imgui_freetype)
- Dear ImGui uses imstb\_truetype.h to rasterize fonts (with optional oversampling). This technique and its implementation are not ideal for fonts rendered at small sizes, which may appear a little blurry or hard to read.
@ -285,9 +264,11 @@ Here's an application using icons ("Avoyd", https://www.avoyd.com):
##### [Return to Index](#index)
---------------------------------------
## Using Colorful Glyphs/Emojis
- Rendering of colored emojis is only supported by imgui_freetype with FreeType 2.10+.
- Rendering of colored emojis is supported by imgui_freetype with FreeType 2.10+.
- You will need to load fonts with the `ImGuiFreeTypeBuilderFlags_LoadColor` flag.
- Emojis are frequently encoded in upper Unicode layers (character codes >0x10000) and will need dear imgui compiled with `IMGUI_USE_WCHAR32`.
- Not all types of color fonts are supported by FreeType at the moment.
@ -307,6 +288,8 @@ io.Fonts->AddFontFromFileTTF("C:\\Windows\\Fonts\\seguiemj.ttf", 16.0f, &cfg, ra
##### [Return to Index](#index)
---------------------------------------
## Using Custom Glyph Ranges
You can use the `ImFontGlyphRangesBuilder` helper to create glyph ranges based on text input. For example: for a game where your script is known, if you can feed your entire script to it and only build the characters the game needs.
@ -324,6 +307,8 @@ io.Fonts->Build(); // Build the atlas while
##### [Return to Index](#index)
---------------------------------------
## Using Custom Colorful Icons
As an alternative to rendering colorful glyphs using imgui_freetype with `ImGuiFreeTypeBuilderFlags_LoadColor`, you may allocate your own space in the texture atlas and write yourself into it. **(This is a BETA api, use if you are familiar with dear imgui and with your rendering backend)**
@ -366,24 +351,89 @@ for (int rect_n = 0; rect_n < IM_ARRAYSIZE(rect_ids); rect_n++)
##### [Return to Index](#index)
## Using Font Data Embedded In Source Code
---------------------------------------
- Compile and use [binary_to_compressed_c.cpp](https://github.com/ocornut/imgui/blob/master/misc/fonts/binary_to_compressed_c.cpp) to create a compressed C style array that you can embed in source code.
- See the documentation in [binary_to_compressed_c.cpp](https://github.com/ocornut/imgui/blob/master/misc/fonts/binary_to_compressed_c.cpp) for instructions on how to use the tool.
- You may find a precompiled version binary_to_compressed_c.exe for Windows inside the demo binaries package (see [README](https://github.com/ocornut/imgui/blob/master/docs/README.md)).
- The tool can optionally output Base85 encoding to reduce the size of _source code_ but the read-only arrays in the actual binary will be about 20% bigger.
## About Filenames
Then load the font with:
**Please note that many new C/C++ users have issues loading their files _because the filename they provide is wrong_ due to incorrect assumption of what is the current directory.**
Two things to watch for:
(1) In C/C++ and most programming languages if you want to use a backslash `\` within a string literal, you need to write it double backslash `\\`. At it happens, Windows uses backslashes as a path separator, so be mindful.
```cpp
ImFont* font = io.Fonts->AddFontFromMemoryCompressedTTF(compressed_data, compressed_data_size, size_pixels, ...);
io.Fonts->AddFontFromFileTTF("MyFiles\MyImage01.jpg", ...); // This is INCORRECT!!
io.Fonts->AddFontFromFileTTF("MyFiles\\MyImage01.jpg", ...); // This is CORRECT
```
or
In some situations, you may also use `/` path separator under Windows.
(2) Make sure your IDE/debugger settings starts your executable from the right working (current) directory. In Visual Studio you can change your working directory in project `Properties > General > Debugging > Working Directory`. People assume that their execution will start from the root folder of the project, where by default it often starts from the folder where object or executable files are stored.
```cpp
ImFont* font = io.Fonts->AddFontFromMemoryCompressedBase85TTF(compressed_data_base85, size_pixels, ...);
io.Fonts->AddFontFromFileTTF("MyImage01.jpg", ...); // Relative filename depends on your Working Directory when running your program!
io.Fonts->AddFontFromFileTTF("../MyImage01.jpg", ...); // Load from the parent folder of your Working Directory
```
##### [Return to Index](#index)
---------------------------------------
## About UTF-8 Encoding
**For non-ASCII characters display, a common user issue is not passing correctly UTF-8 encoded strings.**
(1) We provide a function `ImGui::DebugTextEncoding(const char* text)` which you can call to verify the content of your UTF-8 strings.
This is a convenient way to confirm that your encoding is correct.
```cpp
ImGui::SeparatorText("CORRECT");
ImGui::DebugTextEncoding(u8"こんにちは");
ImGui::SeparatorText("INCORRECT");
ImGui::DebugTextEncoding("こんにちは");
```
![UTF-8 Encoding viewer](https://github.com/ocornut/imgui/assets/8225057/61c1696a-9a94-46c5-9627-cf91211111f0)
You can also find this tool under `Metrics/Debuggers->Tools->UTF-8 Encoding viewer` if you want to paste from clipboard, but this won't validate the UTF-8 encoding done by your compiler.
(2) To encode in UTF-8:
There are also compiler-specific ways to enforce UTF-8 encoding by default:
- Visual Studio compiler: `/utf-8` command-line flag.
- Visual Studio compiler: `#pragma execution_character_set("utf-8")` inside your code.
- Since May 2023 we have changed the Visual Studio projects of all our examples to use `/utf-8` ([see commit](https://github.com/ocornut/imgui/commit/513af1efc9080857bbd10000d98f98f2a0c96803)).
Or, since C++11, you can use the `u8"my text"` syntax to encode literal strings as UTF-8. e.g.:
```cpp
ImGui::Text(u8"hello");
ImGui::Text(u8"こんにちは"); // this will always be encoded as UTF-8
ImGui::Text("こんにちは"); // the encoding of this is depending on compiler settings/flags and may be incorrect.
```
Since C++20, because the C++ committee hate its users, they decided to change the `u8""` syntax to not return `const char*` but a new type `const char8_t*` which doesn't cast to `const char*`.
Because of type usage of `u8""` in C++20 is a little more tedious:
```cpp
ImGui::Text((const char*)u8"こんにちは");
```
However, you can disable this behavior completely using the compiler option [`/Zc:char8_t-`](https://learn.microsoft.com/en-us/cpp/build/reference/zc-char8-t?view=msvc-170) for MSVC and [`-fno-char8_t`](https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1423r3.html) for Clang and GCC.
##### [Return to Index](#index)
---------------------------------------
## Debug Tools
#### Metrics/Debugger->Fonts
You can use the `Metrics/Debugger` window (available in `Demo>Tools`) to browse your fonts and understand what's going on if you have an issue. You can also reach it in `Demo->Tools->Style Editor->Fonts`. The same information are also available in the Style Editor under Fonts.
![Fonts debugging](https://user-images.githubusercontent.com/8225057/135429892-0e41ef8d-33c5-4991-bcf6-f997a0bcfd6b.png)
#### UTF-8 Encoding Viewer**
You can use the `UTF-8 Encoding viewer` in `Metrics/Debugger` to verify the content of your UTF-8 strings. From C/C++ code, you can call `ImGui::DebugTextEncoding("my string");` function to verify that your UTF-8 encoding is correct.
![UTF-8 Encoding viewer](https://user-images.githubusercontent.com/8225057/166505963-8a0d7899-8ee8-4558-abb2-1ae523dc02f9.png)
##### [Return to Index](#index)
---------------------------------------
## Credits/Licenses For Fonts Included In Repository
Some fonts files are available in the `misc/fonts/` folder:
@ -436,7 +486,7 @@ Some fonts files are available in the `misc/fonts/` folder:
#### MONOSPACE FONTS
Pixel Perfect:
- Proggy Fonts, by Tristan Grimmer http://www.proggyfonts.net or http://upperbounds.net
- Proggy Fonts, by Tristan Grimmer http://www.proggyfonts.net or http://upperboundsinteractive.com/fonts.php
- Sweet16, Sweet16 Mono, by Martin Sedlak (Latin + Supplemental + Extended A) https://github.com/kmar/Sweet16Font (also include an .inl file to use directly in dear imgui.)
Regular:

60
docs/README.md
View File

@ -11,23 +11,23 @@ Dear ImGui
Businesses: support continued development and maintenance via invoiced sponsoring/support contracts:
<br>&nbsp;&nbsp;_E-mail: contact @ dearimgui dot com_
<br>Individuals: support continued development and maintenance [here](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=WGHNC6MBFLZ2S). Also see [Sponsors](https://github.com/ocornut/imgui/wiki/Sponsors) page.
<br>Individuals: support continued development and maintenance [here](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=WGHNC6MBFLZ2S). Also see [Funding](https://github.com/ocornut/imgui/wiki/Funding) page.
| [The Pitch](#the-pitch) - [Usage](#usage) - [How it works](#how-it-works) - [Releases & Changelogs](#releases--changelogs) - [Demo](#demo) - [Integration](#integration) |
| [The Pitch](#the-pitch) - [Usage](#usage) - [How it works](#how-it-works) - [Releases & Changelogs](#releases--changelogs) - [Demo](#demo) - [Getting Started & Integration](#getting-started--integration) |
:----------------------------------------------------------: |
| [Gallery](#gallery) - [Support, FAQ](#support-frequently-asked-questions-faq) - [How to help](#how-to-help) - [Sponsors](https://github.com/ocornut/imgui/wiki/Sponsors) - [Credits](#credits) - [License](#license) |
| [Wiki](https://github.com/ocornut/imgui/wiki) - [Languages & frameworks backends/bindings](https://github.com/ocornut/imgui/wiki/Bindings) - [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) - [User quotes](https://github.com/ocornut/imgui/wiki/Quotes) |
| [Gallery](#gallery) - [Support, FAQ](#support-frequently-asked-questions-faq) - [How to help](#how-to-help) - **[Funding & Sponsors](https://github.com/ocornut/imgui/wiki/Funding)** - [Credits](#credits) - [License](#license) |
| [Wiki](https://github.com/ocornut/imgui/wiki) - [Extensions](https://github.com/ocornut/imgui/wiki/Useful-Extensions) - [Languages bindings & frameworks backends](https://github.com/ocornut/imgui/wiki/Bindings) - [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) - [User quotes](https://github.com/ocornut/imgui/wiki/Quotes) |
### The Pitch
Dear ImGui is a **bloat-free graphical user interface library for C++**. It outputs optimized vertex buffers that you can render anytime in your 3D-pipeline-enabled application. It is fast, portable, renderer agnostic, and self-contained (no external dependencies).
Dear ImGui is designed to **enable fast iterations** and to **empower programmers** to create **content creation tools and visualization / debug tools** (as opposed to UI for the average end-user). It favors simplicity and productivity toward this goal and lacks certain features commonly found in more high-level libraries.
Dear ImGui is designed to **enable fast iterations** and to **empower programmers** to create **content creation tools and visualization / debug tools** (as opposed to UI for the average end-user). It favors simplicity and productivity toward this goal and lacks certain features commonly found in more high-level libraries. Among other things, full internationalization (right-to-left text, bidirectional text, text shaping etc.) and accessibility features are not supported.
Dear ImGui is particularly suited to integration in game engines (for tooling), real-time 3D applications, fullscreen applications, embedded applications, or any applications on console platforms where operating system features are non-standard.
- Minimize state synchronization.
- Minimize state storage on user side.
- Minimize UI-related state storage on user side.
- Minimize setup and maintenance.
- Easy to use to create dynamic UI which are the reflection of a dynamic data set.
- Easy to use to create code-driven and data-driven tools.
@ -41,7 +41,9 @@ Dear ImGui is particularly suited to integration in game engines (for tooling),
**The core of Dear ImGui is self-contained within a few platform-agnostic files** which you can easily compile in your application/engine. They are all the files in the root folder of the repository (imgui*.cpp, imgui*.h). **No specific build process is required**. You can add the .cpp files into your existing project.
**Backends for a variety of graphics API and rendering platforms** are provided in the [backends/](https://github.com/ocornut/imgui/tree/master/backends) folder, along with example applications in the [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder. See the [Integration](#integration) section of this document for details. You may also create your own backend. Anywhere where you can render textured triangles, you can render Dear ImGui.
**Backends for a variety of graphics API and rendering platforms** are provided in the [backends/](https://github.com/ocornut/imgui/tree/master/backends) folder, along with example applications in the [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder. You may also create your own backend. Anywhere where you can render textured triangles, you can render Dear ImGui.
See the [Getting Started & Integration](#getting-started--integration) section of this document for more details.
After Dear ImGui is set up in your application, you can use it from \_anywhere\_ in your program loop:
```cpp
@ -92,7 +94,7 @@ Dear ImGui allows you to **create elaborate tools** as well as very short-lived
### How it works
Check out the Wiki's [About the IMGUI paradigm](https://github.com/ocornut/imgui/wiki#about-the-imgui-paradigm) section if you want to understand the core principles behind the IMGUI paradigm. An IMGUI tries to minimize superfluous state duplication, state synchronization, and state retention from the user's point of view. It is less error-prone (less code and fewer bugs) than traditional retained-mode interfaces, and lends itself to creating dynamic user interfaces.
The IMGUI paradigm through its API tries to minimize superfluous state duplication, state synchronization, and state retention from the user's point of view. It is less error-prone (less code and fewer bugs) than traditional retained-mode interfaces, and lends itself to creating dynamic user interfaces. Check out the Wiki's [About the IMGUI paradigm](https://github.com/ocornut/imgui/wiki#about-the-imgui-paradigm) section for more details.
Dear ImGui outputs vertex buffers and command lists that you can easily render in your application. The number of draw calls and state changes required to render them is fairly small. Because Dear ImGui doesn't know or touch graphics state directly, you can call its functions anywhere in your code (e.g. in the middle of a running algorithm, or in the middle of your own rendering process). Refer to the sample applications in the examples/ folder for instructions on how to integrate Dear ImGui with your existing codebase.
@ -108,34 +110,38 @@ Reading the changelogs is a good way to keep up to date with the things Dear ImG
Calling the `ImGui::ShowDemoWindow()` function will create a demo window showcasing a variety of features and examples. The code is always available for reference in `imgui_demo.cpp`. [Here's how the demo looks](https://raw.githubusercontent.com/wiki/ocornut/imgui/web/v167/v167-misc.png).
You should be able to build the examples from sources. If you don't, let us know! If you want to have a quick look at some Dear ImGui features, you can download Windows binaries of the demo app here:
- [imgui-demo-binaries-20220504.zip](https://www.dearimgui.com/binaries/imgui-demo-binaries-20220504.zip) (Windows, 1.88 WIP, built 2022/05/04, master) or [older binaries](https://www.dearimgui.com/binaries).
- [imgui-demo-binaries-20240105.zip](https://www.dearimgui.com/binaries/imgui-demo-binaries-20240105.zip) (Windows, 1.90.1 WIP, built 2024/01/05, master) or [older binaries](https://www.dearimgui.com/binaries).
The demo applications are not DPI aware so expect some blurriness on a 4K screen. For DPI awareness in your application, you can load/reload your font at a different scale and scale your style with `style.ScaleAllSizes()` (see [FAQ](https://www.dearimgui.com/faq)).
### Integration
### Getting Started & Integration
See the [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) guide for details.
On most platforms and when using C++, **you should be able to use a combination of the [imgui_impl_xxxx](https://github.com/ocornut/imgui/tree/master/backends) backends without modification** (e.g. `imgui_impl_win32.cpp` + `imgui_impl_dx11.cpp`). If your engine supports multiple platforms, consider using more imgui_impl_xxxx files instead of rewriting them: this will be less work for you, and you can get Dear ImGui running immediately. You can _later_ decide to rewrite a custom backend using your custom engine functions if you wish so.
Integrating Dear ImGui within your custom engine is a matter of 1) wiring mouse/keyboard/gamepad inputs 2) uploading a texture to your GPU/render engine 3) providing a render function that can bind textures and render textured triangles. The [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder is populated with applications doing just that. If you are an experienced programmer at ease with those concepts, it should take you less than two hours to integrate Dear ImGui into your custom engine. **Make sure to spend time reading the [FAQ](https://www.dearimgui.com/faq), comments, and the examples applications!**
Integrating Dear ImGui within your custom engine is a matter of 1) wiring mouse/keyboard/gamepad inputs 2) uploading a texture to your GPU/render engine 3) providing a render function that can bind textures and render textured triangles, which is essentially what Backends are doing. The [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder is populated with applications doing just that: setting up a window and using backends. If you follow the [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) guide it should in theory takes you less than an hour to integrate Dear ImGui. **Make sure to spend time reading the [FAQ](https://www.dearimgui.com/faq), comments, and the examples applications!**
Officially maintained backends/bindings (in repository):
- Renderers: DirectX9, DirectX10, DirectX11, DirectX12, Metal, OpenGL/ES/ES2, SDL_Renderer, Vulkan, WebGPU.
- Platforms: GLFW, SDL2, Win32, Glut, OSX, Android.
- Platforms: GLFW, SDL2/SDL3, Win32, Glut, OSX, Android.
- Frameworks: Allegro5, Emscripten.
[Third-party backends/bindings](https://github.com/ocornut/imgui/wiki/Bindings) wiki page:
- Languages: C, C# and: Beef, ChaiScript, Crystal, D, Go, Haskell, Haxe/hxcpp, Java, JavaScript, Julia, Kotlin, Lobster, Lua, Odin, Pascal, PureBasic, Python, Ruby, Rust, Swift...
- Frameworks: AGS/Adventure Game Studio, Amethyst, Blender, bsf, Cinder, Cocos2d-x, Diligent Engine, Flexium, GML/Game Maker Studio2, GLEQ, Godot, GTK3+OpenGL3, Irrlicht Engine, LÖVE+LUA, Magnum, Monogame, NanoRT, nCine, Nim Game Lib, Nintendo 3DS & Switch (homebrew), Ogre, openFrameworks, OSG/OpenSceneGraph, Orx, Photoshop, px_render, Qt/QtDirect3D, SDL_Renderer, SFML, Sokol, Unity, Unreal Engine 4, vtk, VulkanHpp, VulkanSceneGraph, Win32 GDI, WxWidgets.
- Languages: C, C# and: Beef, ChaiScript, CovScript, Crystal, D, Go, Haskell, Haxe/hxcpp, Java, JavaScript, Julia, Kotlin, Lobster, Lua, Nim, Odin, Pascal, PureBasic, Python, ReaScript, Ruby, Rust, Swift, Zig...
- Frameworks: AGS/Adventure Game Studio, Amethyst, Blender, bsf, Cinder, Cocos2d-x, Defold, Diligent Engine, Ebiten, Flexium, GML/Game Maker Studio, GLEQ, Godot, GTK3, Irrlicht Engine, JUCE, LÖVE+LUA, Mach Engine, Magnum, Marmalade, Monogame, NanoRT, nCine, Nim Game Lib, Nintendo 3DS/Switch/WiiU (homebrew), Ogre, openFrameworks, OSG/OpenSceneGraph, Orx, Photoshop, px_render, Qt/QtDirect3D, raylib, SFML, Sokol, Unity, Unreal Engine 4/5, UWP, vtk, VulkanHpp, VulkanSceneGraph, Win32 GDI, WxWidgets.
- Many bindings are auto-generated (by good old [cimgui](https://github.com/cimgui/cimgui) or newer/experimental [dear_bindings](https://github.com/dearimgui/dear_bindings)), you can use their metadata output to generate bindings for other languages.
[Useful Extensions/Widgets](https://github.com/ocornut/imgui/wiki/Useful-Extensions) wiki page:
- Automation/testing, Text editors, node editors, timeline editors, plotting, software renderers, remote network access, memory editors, gizmos, etc. One of the most notable and well supported extension is [ImPlot](https://github.com/epezent/implot).
- Automation/testing, Text editors, node editors, timeline editors, plotting, software renderers, remote network access, memory editors, gizmos, etc. Notable and well supported extensions include [ImPlot](https://github.com/epezent/implot) and [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine).
Also see [Wiki](https://github.com/ocornut/imgui/wiki) for more links and ideas.
### Gallery
For more user-submitted screenshots of projects using Dear ImGui, check out the [Gallery Threads](https://github.com/ocornut/imgui/issues/5886)!
Examples projects using Dear ImGui: [Tracy](https://github.com/wolfpld/tracy) (profiler), [ImHex](https://github.com/WerWolv/ImHex) (hex editor/data analysis), [RemedyBG](https://remedybg.itch.io/remedybg) (debugger) and [hundreds of others](https://github.com/ocornut/imgui/wiki/Software-using-Dear-ImGui).
For more user-submitted screenshots of projects using Dear ImGui, check out the [Gallery Threads](https://github.com/ocornut/imgui/issues?q=label%3Agallery)!
For a list of third-party widgets and extensions, check out the [Useful Extensions/Widgets](https://github.com/ocornut/imgui/wiki/Useful-Extensions) wiki page.
@ -148,7 +154,7 @@ For a list of third-party widgets and extensions, check out the [Useful Extensio
See: [Frequently Asked Questions (FAQ)](https://github.com/ocornut/imgui/blob/master/docs/FAQ.md) where common questions are answered.
See: [Wiki](https://github.com/ocornut/imgui/wiki) for many links, references, articles.
See: [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) and [Wiki](https://github.com/ocornut/imgui/wiki) for many links, references, articles.
See: [Articles about the IMGUI paradigm](https://github.com/ocornut/imgui/wiki#about-the-imgui-paradigm) to read/learn about the Immediate Mode GUI paradigm.
@ -156,33 +162,35 @@ See: [Upcoming Changes](https://github.com/ocornut/imgui/wiki/Upcoming-Changes).
See: [Dear ImGui Test Engine + Test Suite](https://github.com/ocornut/imgui_test_engine) for Automation & Testing.
Getting started? For first-time users having issues compiling/linking/running or issues loading fonts, please use [GitHub Discussions](https://github.com/ocornut/imgui/discussions). For other questions, bug reports, requests, feedback, you may post on [GitHub Issues](https://github.com/ocornut/imgui/issues). Please read and fill the New Issue template carefully.
For the purposes of getting search engines to crawl the wiki, here's a link to the [Crawlable Wiki](https://github-wiki-see.page/m/ocornut/imgui/wiki) (not for humans, [here's why](https://github-wiki-see.page/)).
Getting started? For first-time users having issues compiling/linking/running or issues loading fonts, please use [GitHub Discussions](https://github.com/ocornut/imgui/discussions). For ANY other questions, bug reports, requests, feedback, please post on [GitHub Issues](https://github.com/ocornut/imgui/issues). Please read and fill the New Issue template carefully.
Private support is available for paying business customers (E-mail: _contact @ dearimgui dot com_).
**Which version should I get?**
We occasionally tag [Releases](https://github.com/ocornut/imgui/releases) (with nice releases notes) but it is generally safe and recommended to sync to master/latest. The library is fairly stable and regressions tend to be fixed fast when reported. Advanced users may want to use the `docking` branch with [Multi-Viewport](https://github.com/ocornut/imgui/issues/1542) and [Docking](https://github.com/ocornut/imgui/issues/2109) features. This branch is kept in sync with master regularly.
We occasionally tag [Releases](https://github.com/ocornut/imgui/releases) (with nice releases notes) but it is generally safe and recommended to sync to latest `master` or `docking` branch. The library is fairly stable and regressions tend to be fixed fast when reported. Advanced users may want to use the `docking` branch with [Multi-Viewport](https://github.com/ocornut/imgui/wiki/Multi-Viewports) and [Docking](https://github.com/ocornut/imgui/wiki/Docking) features. This branch is kept in sync with master regularly.
**Who uses Dear ImGui?**
See the [Quotes](https://github.com/ocornut/imgui/wiki/Quotes), [Sponsors](https://github.com/ocornut/imgui/wiki/Sponsors), and [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) Wiki pages for an idea of who is using Dear ImGui. Please add your game/software if you can! Also, see the [Gallery Threads](https://github.com/ocornut/imgui/issues/5886)!
See the [Quotes](https://github.com/ocornut/imgui/wiki/Quotes), [Funding & Sponsors](https://github.com/ocornut/imgui/wiki/Funding), and [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) Wiki pages for an idea of who is using Dear ImGui. Please add your game/software if you can! Also, see the [Gallery Threads](https://github.com/ocornut/imgui/issues?q=label%3Agallery)!
How to help
-----------
**How can I help?**
- See [GitHub Forum/Issues](https://github.com/ocornut/imgui/issues) and [GitHub Discussions](https://github.com/ocornut/imgui/discussions).
- See [GitHub Forum/Issues](https://github.com/ocornut/imgui/issues).
- You may help with development and submit pull requests! 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 forever. PR should be crafted both in the interest of the end-users and also to ease the maintainer into understanding and accepting it.
- See [Help wanted](https://github.com/ocornut/imgui/wiki/Help-Wanted) on the [Wiki](https://github.com/ocornut/imgui/wiki/) for some more ideas.
- Have your company financially support this project with invoiced sponsoring/support contracts or by buying a license for [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine) (please reach out: contact at dearimgui dot com).
- Be a [Funding Supporter](https://github.com/ocornut/imgui/wiki/Funding)! Have your company financially support this project via invoiced sponsors/maintenance or by buying a license for [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine) (please reach out: omar AT dearimgui DOT com).
Sponsors
--------
Ongoing Dear ImGui development is and has been financially supported by users and private sponsors.
<BR>Please see the **[detailed list of current and past Dear ImGui supporters](https://github.com/ocornut/imgui/wiki/Sponsors)** for details.
<BR>Please see the **[detailed list of current and past Dear ImGui funding supporters and sponsors](https://github.com/ocornut/imgui/wiki/Funding)** for details.
<BR>From November 2014 to December 2019, ongoing development has also been financially supported by its users on Patreon and through individual donations.
**THANK YOU to all past and present supporters for helping to keep this project alive and thriving!**
@ -197,13 +205,13 @@ Credits
Developed by [Omar Cornut](https://www.miracleworld.net) and every direct or indirect [contributors](https://github.com/ocornut/imgui/graphs/contributors) to the GitHub. The early version of this library was developed with the support of [Media Molecule](https://www.mediamolecule.com) and first used internally on the game [Tearaway](https://tearaway.mediamolecule.com) (PS Vita).
Recurring contributors (2022): Omar Cornut [@ocornut](https://github.com/ocornut), Rokas Kupstys [@rokups](https://github.com/rokups) (a good portion of work on automation system and regression tests now available in [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine)).
Recurring contributors include Rokas Kupstys [@rokups](https://github.com/rokups) (2020-2022): a good portion of work on automation system and regression tests now available in [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine).
Sponsoring, support contracts and other B2B transactions are hosted and handled by [Disco Hello](https://www.discohello.com).
Maintenance/support contracts, sponsoring invoices and other B2B transactions are hosted and handled by [Disco Hello](https://www.discohello.com).
Omar: "I first discovered the IMGUI paradigm at [Q-Games](https://www.q-games.com) where Atman Binstock had dropped his own simple implementation in the codebase, which I spent quite some time improving and thinking about. It turned out that Atman was exposed to the concept directly by working with Casey. When I moved to Media Molecule I rewrote a new library trying to overcome the flaws and limitations of the first one I've worked with. It became this library and since then I have spent an unreasonable amount of time iterating and improving it."
Embeds [ProggyClean.ttf](http://upperbounds.net) font by Tristan Grimmer (MIT license).
Embeds [ProggyClean.ttf](https://www.proggyfonts.net) font by Tristan Grimmer (MIT license).
<br>Embeds [stb_textedit.h, stb_truetype.h, stb_rect_pack.h](https://github.com/nothings/stb/) by Sean Barrett (public domain).
Inspiration, feedback, and testing for early versions: Casey Muratori, Atman Binstock, Mikko Mononen, Emmanuel Briney, Stefan Kamoda, Anton Mikhailov, Matt Willis. Also thank you to everyone posting feedback, questions and patches on GitHub.

69
docs/TODO.txt
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@ -2,12 +2,12 @@ dear imgui
ISSUES & TODO LIST
Issue numbers (#) refer to GitHub issues listed at https://github.com/ocornut/imgui/issues/XXXX
This list is not well maintained, most of the work happens on GitHub nowadays.
THIS LIST IS NOT WELL MAINTAINED. MOST OF THE WORK HAPPENS ON GITHUB NOWADAYS.
The list below consist mostly of ideas noted down before they are requested/discussed by users (at which point they usually exist on the github issue tracker).
It's mostly a bunch of personal notes, probably incomplete. Feel free to query if you have any questions.
- doc/test: add a proper documentation+regression testing system (#435)
- doc/test: checklist app to verify backends/integration of imgui (test inputs, rendering, callback, etc.).
- doc: add a proper documentation system (maybe relying on automation? #435)
- doc: checklist app to verify backends/integration of imgui (test inputs, rendering, callback, etc.).
- doc/tips: tips of the day: website? applet in imgui_club?
- doc/wiki: work on the wiki https://github.com/ocornut/imgui/wiki
@ -18,7 +18,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- window: begin with *p_open == false could return false.
- window: get size/pos helpers given names (see discussion in #249)
- window: when window is very small, prioritize resize button over close button.
- window: double-clicking on title bar to minimize isn't consistent, perhaps move to single-click on left-most collapse icon?
- window: double-clicking on title bar to minimize isn't consistent interaction, perhaps move to single-click on left-most collapse icon?
- window: expose contents size. (#1045)
- window: using SetWindowPos() inside Begin() and moving the window with the mouse reacts a very ugly glitch. We should just defer the SetWindowPos() call.
- window: GetWindowSize() returns (0,0) when not calculated? (#1045)
@ -31,29 +31,26 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- window/child: allow resizing of child windows (possibly given min/max for each axis?.)
- window/child: allow SetNextWindowContentSize() to work on child windows.
- window/clipping: some form of clipping when DisplaySize (or corresponding viewport) is zero.
- window/tabbing: add a way to signify that a window or docked window requires attention (e.g. blinking title bar).
- window/id_stack: add e.g. window->GetIDFromPath() with support for leading / and ../ (#1390, #331)
- window/tabbing: add a way to signify that a window or docked window requires attention (e.g. blinking title bar, trying to click behind a modal).
- window/id_stack: add e.g. window->GetIDFromPath() with support for leading / and ../ (#1390, #331) -> model from test engine.
! scrolling: exposing horizontal scrolling with Shift+Wheel even when scrollbar is disabled expose lots of issues (#2424, #1463)
- scrolling: while holding down a scrollbar, try to keep the same contents visible (at least while not moving mouse)
- scrolling: allow immediately effective change of scroll after Begin() if we haven't appended items yet.
- scrolling: forward mouse wheel scrolling to parent window when at the edge of scrolling limits? (useful for listbox,tables?)
- scrolling/clipping: separator on the initial position of a window is not visible (cursorpos.y <= clippos.y). (2017-08-20: can't repro)
- scrolling/style: shadows on scrollable areas to denote that there is more contents (see e.g. DaVinci Resolve ui)
- drawdata: make it easy to deep-copy (or swap?) a full ImDrawData so user can easily save that data if they use threaded rendering. (e.g. #2646)
- drawdata: make it easy to deep-copy (or swap?) a full ImDrawData so user can easily save that data if they use threaded rendering. (#1860 see ImDrawDataSnapshot)
! drawlist: add CalcTextSize() func to facilitate consistent code from user pov (currently need to use ImGui or ImFont alternatives!)
- drawlist: maintaining bounding box per command would allow to merge draw command when clipping isn't relied on (typical non-scrolling window or non-overflowing column would merge with previous command). (WIP branch)
- drawlist: primitives/helpers to manipulate vertices post submission, so e.g. a quad/rect can be resized to fit later submitted content, _without_ using the ChannelSplit api
- drawlist: make it easier to toggle AA per primitive, so we can use e.g. non-AA fill + AA borders more naturally
- drawlist: non-AA strokes have gaps between points (#593, #288), glitch especially on RenderCheckmark() and ColorPicker4().
- drawlist: rendering: provide a way for imgui to output to a single/global vertex buffer, re-order indices only at the end of the frame (ref: https://gist.github.com/floooh/10388a0afbe08fce9e617d8aefa7d302)
- drawlist: callback: add an extra void* in ImDrawCallback to allow passing render-local data to the callback (would break API).
- drawlist: AddRect vs AddLine position confusing (#2441)
- drawlist/opt: store rounded corners in texture to use 1 quad per corner (filled and wireframe) to lower the cost of rounding. (#1962)
- drawlist/opt: AddRect() axis aligned pixel aligned (no-aa) could use 8 triangles instead of 16 and no normal calculation.
- drawlist/opt: thick AA line could be doable in same number of triangles as 1.0 AA line by storing gradient+full color in atlas.
- main: IsItemHovered() info stored in a stack? so that 'if TreeNode() { Text; TreePop; } if IsHovered' return the hover state of the TreeNode?
- items: IsItemHovered() info stored in a stack? so that 'if TreeNode() { Text; TreePop; } if IsHovered' return the hover state of the TreeNode?
- widgets: display mode: widget-label, label-widget (aligned on column or using fixed size), label-newline-tab-widget etc. (#395)
- widgets: clean up widgets internal toward exposing everything and stabilizing imgui_internals.h.
@ -61,15 +58,13 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- widgets: start exposing PushItemFlag() and ImGuiItemFlags
- widgets: alignment options in style (e.g. center Selectable, Right-Align within Button, etc.) #1260
- widgets: activate by identifier (trigger button, focus given id)
- widgets: a way to represent "mixed" values, so e.g. all values replaced with *, including check-boxes, colors, etc. with support for multi-components widgets (e.g. SliderFloat3, make only "Y" mixed) (#2644)
- widgets: checkbox: checkbox with custom glyph inside frame.
- widgets: custom glyph/shapes replacements for stock sapes. (also #6090 #2431 #2235 #6517)
- widgets: coloredit: keep reporting as active when picker is on?
- widgets: group/scalarn functions: expose more per-component information. e.g. store NextItemData.ComponentIdx set by scalarn function, groups can expose them back somehow.
- selectable: using (size.x == 0.0f) and (SelectableTextAlign.x > 0.0f) followed by SameLine() is currently not supported.
- selectable: generic BeginSelectable()/EndSelectable() mechanism. (work out alongside range-select branch)
- selectable: a way to visualize partial/mixed selection (e.g. parent tree node has children with mixed selection)
- input text: clean up the mess caused by converting UTF-8 <> wchar. the code is rather inefficient right now and super fragile. (WIP branch)
- input text: preserve scrolling when unfocused?
- input text: reorganize event handling, allow CharFilter to modify buffers, allow multiple events? (#541)
- input text: expose CursorPos in char filter event (#816)
@ -81,7 +76,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- input text: option to Tab after an Enter validation.
- input text: add ImGuiInputTextFlags_EnterToApply? (off #218)
- input text: easier ways to update buffer (from source char*) while owned. preserve some sort of cursor position for multi-line text.
- input text: add flag (e.g. ImGuiInputTextFlags_EscapeClearsBuffer) to clear instead of revert. what to do with focus? (also see #2890)
- input text: add discard flag (e.g. ImGuiInputTextFlags_DiscardActiveBuffer) or make it easier to clear active focus for text replacement during edition (#725)
- input text: display bug when clicking a drag/slider after an input text in a different window has all-selected text (order dependent). actually a very old bug but no one appears to have noticed it.
- input text: allow centering/positioning text so that ctrl+clicking Drag or Slider keeps the textual value at the same pixel position.
@ -116,20 +110,14 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- tables: see https://github.com/ocornut/imgui/issues/2957#issuecomment-569726095
- group: BeginGroup() needs a border option. (~#1496)
- group: IsHovered() after EndGroup() covers whole AABB rather than the intersection of individual items. Is that desirable?
- group: IsItemHovered() after EndGroup() covers whole AABB rather than the intersection of individual items. Is that desirable?
- group: merge deactivation/activation within same group (fwd WasEdited flag). (#2550)
!- color: the color conversion helpers/types are a mess and needs sorting out.
- color: (api breaking) ImGui::ColorConvertXXX functions should be loose ImColorConvertXX to match imgui_internals.h
- plot: full featured plot/graph api w/ scrolling, zooming etc. all bell & whistle. why not!
- plot: PlotLines() should use the polygon-stroke facilities, less vertices (currently issues with averaging normals)
- plot: make it easier for user to draw extra stuff into the graph (e.g: draw basis, highlight certain points, 2d plots, multiple plots)
- plot: "smooth" automatic scale over time, user give an input 0.0(full user scale) 1.0(full derived from value)
- plot: option/feature: draw the zero line
- plot: option/feature: draw grid, vertical markers
- plot: option/feature: draw unit
- plot: add a helper e.g. Plot(char* label, float value, float time_span=2.0f) that stores values and Plot them for you - probably another function name. and/or automatically allow to plot ANY displayed value (more reliance on stable ID)
- plot: full featured plot/graph api w/ scrolling, zooming etc. --> promote using ImPlot
- (plot: deleted all other todo lines on 2023-06-28)
- clipper: ability to disable the clipping through a simple flag/bool.
- clipper: ability to run without knowing full count in advance.
@ -137,24 +125,19 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- separator: expose flags (#759)
- separator: take indent into consideration (optional)
- separator: width, thickness, centering (#1643)
- separator: width, thickness, centering (#1643, #2657)
- splitter: formalize the splitter idiom into an official api (we want to handle n-way split) (#319)
- dock: merge docking branch (#2109)
- docking: merge docking branch (#2109)
- tabs: "there is currently a problem because TabItem() will try to submit their own tooltip after 0.50 second, and this will have the effect of making your tooltip flicker once." -> tooltip priority work (WIP branch)
- tabs: make EndTabBar fail if users doesn't respect BeginTabBar return value, for consistency/future-proofing.
- tabs: persistent order/focus in BeginTabBar() api (#261, #351)
- tabs: TabItem could honor SetNextItemWidth()?
- tabs: explicit api (even if internal) to cleanly manipulate tab order.
- tabs: Mouse wheel over tab bar could scroll? (with shift?) (#2702)
- image/image button: misalignment on padded/bordered button?
- image/image button: parameters are confusing, image() has tint_col,border_col whereas imagebutton() has bg_col/tint_col. Even thou they are different parameters ordering could be more consistent. can we fix that?
- image button: not taking an explicit id can be problematic. (#2464, #1390)
- slider/drag: ctrl+click when format doesn't include a % character.. disable? display underlying value in default format? (see TempInputTextScalar)
- slider: allow using the [-]/[+] buttons used by InputFloat()/InputInt()
- slider: initial absolute click is imprecise. change to relative movement slider (same as scrollbar). (#1946)
- slider: add dragging-based widgets to edit values with mouse (on 2 axises), saving screen real-estate.
- slider: tint background based on value (e.g. v_min -> v_max, or use 0.0f either side of the sign)
- slider: relative dragging? + precision dragging
@ -166,8 +149,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- drag float: power != 0.0f with current value being outside the range keeps the value stuck.
- drag float: added leeway on edge (e.g. a few invisible steps past the clamp limits)
- combo: use clipper.
- combo: flag for BeginCombo to not return true when unchanged (#1182)
- combo: a way/helper to customize the combo preview (#1658) -> experimental BeginComboPreview()
- combo/listbox: keyboard control. need InputText-like non-active focus + key handling. considering keyboard for custom listbox (pr #203)
- listbox: multiple selection (WIP range-select branch)
@ -189,16 +170,15 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- tooltip: drag and drop with tooltip near monitor edges lose/changes its last direction instead of locking one. The drag and drop tooltip should always follow without changing direction.
- tooltip: allow to set the width of a tooltip to allow TextWrapped() etc. while keeping the height automatic.
- tooltip: tooltips with delay timers? or general timer policy? (instantaneous vs timed): IsItemHovered() with timer + implicit aabb-id for items with no ID. (#1485) (WIP branch)
- tooltip: drag tooltip hovering over source widget with IsItemHovered/SetTooltip flickers (WIP branch)
- tooltip: tooltip priorities to override a stock tooltip (e.g. shortcut tooltip)
- status-bar: add a per-window status bar helper similar to what menu-bar does. generalize concept of layer0 rect in window (can make _MenuBar window flag obsolete too).
- shortcuts: store multiple keychords in ImGuiKeyChord
- shortcuts: Hovered route (lower than Focused, higher than Global)
- shortcuts: local-style shortcut api, e.g. parse "&Save"
- shortcuts,menus: global-style shortcut api e.g. "Save (CTRL+S)" -> explicit flag for recursing into closed menu
- shortcuts: programmatically access shortcuts "Focus("&Save"))
- menus: menu-bar: main menu-bar could affect clamping of windows position (~ akin to modifying DisplayMin)
- menus: hovering from menu to menu on a menu-bar has 1 frame without any menu, which is a little annoying. ideally either 0 either longer.
- menus: could merge draw call in most cases (how about storing an optional aabb in ImDrawCmd to move the burden of merging in a single spot).
- menus: hovering from menu to menu on a menu-bar has 1 frame without any menu, which is a little annoying. ideally zero.
- menus: would be nice if the Selectable() supported horizontal alignment (must be given the equivalent of WorkRect.Max.x matching the position of the shortcut column)
- tree node: add treenode/treepush int variants? not there because (void*) cast from int warns on some platforms/settings?
@ -206,15 +186,14 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- tree node / selectable render mismatch which is visible if you use them both next to each other (e.g. cf. property viewer)
- tree node: tweak color scheme to distinguish headers from selected tree node (#581)
- tree node: leaf/non-leaf highlight mismatch.
- tree node: flag to disable formatting and/or detect "%s"
- tree node/opt: could avoid formatting when clipped (flag assuming we don't care about width/height, assume single line height? format only %s/%c to be able to count height?)
- settings: write more decent code to allow saving/loading new fields: columns, selected tree nodes?
- settings: facilitate extension lazily calling AddSettingsHandler() while running and still getting their data call the ReadXXX handlers immediately.
- settings: api for per-tool simple persistent data (bool,int,float,columns sizes,etc.) in .ini file (#437)
- settings/persistence: helpers to make TreeNodeBehavior persist (even during dev!) - may need to store some semantic and/or data type in ImGuiStoragePair
- style: better default styles. (#707)
- style: PushStyleVar: allow direct access to individual float X/Y elements.
- style: add a highlighted text color (for headers, etc.)
- style: border types: out-screen, in-screen, etc. (#447)
- style: add window shadow (fading away from the window. Paint-style calculation of vertices alpha after drawlist would be easier)
@ -244,7 +223,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- drag and drop: drag source on a group object (would need e.g. an invisible button covering group in EndGroup) https://twitter.com/paniq/status/1121446364909535233
- drag and drop: have some way to know when a drag begin from BeginDragDropSource() pov. (see 2018/01/11 post in #143)
- drag and drop: allow preview tooltip to be submitted from a different place than the drag source. (#1725)
- drag and drop: allow using with other mouse buttons (where activeid won't be set). (#1637)
- drag and drop: make it easier and provide a demo to have tooltip both are source and target site, with a more detailed one on target site (tooltip ordering problem)
- drag and drop: demo with reordering nodes (in a list, or a tree node). (#143)
- drag and drop: test integrating with os drag and drop (make it easy to do a naive WM_DROPFILE integration)
@ -299,7 +277,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- nav: some features such as PageUp/Down/Home/End should probably work without ImGuiConfigFlags_NavEnableKeyboard? (where do we draw the line? how about CTRL+Tab)
! nav: never clear NavId on some setup (e.g. gamepad centric)
- nav: there's currently no way to completely clear focus with the keyboard. depending on patterns used by the application to dispatch inputs, it may be desirable.
- nav: code to focus child-window on restoring NavId appears to have issue: e.g. when focus change is implicit because of window closure.
- nav: Home/End behavior when navigable item is not fully visible at the edge of scrolling? should be backtrack to keep item into view?
- nav: NavScrollToBringItemIntoView() with item bigger than view should focus top-right? Repro: using Nav in "About Window"
- nav: wrap around logic to allow e.g. grid based layout (pressing NavRight on the right-most element would go to the next row, etc.). see internal's NavMoveRequestTryWrapping().
@ -320,12 +297,10 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- nav/menus: when using the main menu bar, even though we restore focus after, the underlying window loses its title bar highlight during menu manipulation. could we prevent it?
- nav/menus: main menu bar currently cannot restore a nullptr focus. Could save NavWindow at the time of being focused, similarly to what popup do?
- nav/menus: Alt,Up could open the first menu (e.g. "File") currently it tends to nav into the window/collapse menu. Do do that we would need custom transition?
- nav/windowing: configure fade-in/fade-out delay on Ctrl+Tab?
- nav/windowing: when CTRL+Tab/windowing is active, the HoveredWindow detection doesn't take account of the window display re-ordering.
- nav/windowing: Resizing window will currently fail with certain types of resizing constraints/callback applied
- focus: preserve ActiveId/focus stack state, e.g. when opening a menu and close it, previously selected InputText() focus gets restored (#622)
- inputs: we need an explicit flag about whether the platform window is focused, to be able to distinguish focused key releases vs alt-tabbing all release behaviors.
- inputs: support track pad style scrolling & slider edit.
- inputs/io: backspace and arrows in the context of a text input could use system repeat rate.
- inputs/io: clarify/standardize/expose repeat rate and repeat delays (#1808)
@ -338,8 +313,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- misc: make the ImGuiCond values linear (non-power-of-two). internal storage for ImGuiWindow can use integers to combine into flags (Why?)
- misc: PushItemFlag(): add a flag to disable keyboard capture when used with mouse? (#1682)
- misc: use more size_t in public api?
- misc: possible compile-time support for string view/range instead of char* would e.g. facilitate usage with Rust (#683, #3038, WIP string_view branch)
- misc: possible compile-time support for wchar_t instead of char*?
- misc: support for string view/range instead of char* would e.g. facilitate usage with Rust (#683, #3038, WIP string_view branch)
- demo: demonstrate using PushStyleVar() in more details.
- demo: add vertical separator demo
@ -351,7 +325,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- examples: provide a zero frame-rate/idle example.
- examples: dx11/dx12: try to use new swapchain blit models (#2970)
- backends: report it better when not able to create texture?
- backends: apple: example_apple should be using modern GL3.
- backends: glfw: could go idle when minimized? if (glfwGetWindowAttrib(window, GLFW_ICONIFIED)) { glfwWaitEvents(); continue; } // issue: DeltaTime will be super high on resume, perhaps provide a way to let impl know (#440)
- backends: opengl: rename imgui_impl_opengl2 to impl_opengl_legacy and imgui_impl_opengl3 to imgui_impl_opengl? (#1900)
- backends: opengl: could use a single vertex buffer and glBufferSubData for uploads?
@ -360,7 +333,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- backends: bgfx: https://gist.github.com/RichardGale/6e2b74bc42b3005e08397236e4be0fd0
- backends: emscriptem: with refactored examples, we could provide a direct imgui_impl_emscripten platform layer (see eg. https://github.com/floooh/sokol-samples/blob/master/html5/imgui-emsc.cc#L42)
- bindings: ways to use clang ast dump to generate bindings or helpers for bindings? (e.g. clang++ -Xclang -ast-dump=json imgui.h) (WIP project "dear-bindings" still private)
- bindings: ways to use clang ast dump to generate bindings or helpers for bindings? (e.g. clang++ -Xclang -ast-dump=json imgui.h) (--> use https://github.com/dearimgui/dear_bindings)
- optimization: replace vsnprintf with stb_printf? using IMGUI_USE_STB_SPRINTF. (#1038 + needed for string_view)
- optimization: add clipping for multi-component widgets (SliderFloatX, ColorEditX, etc.). one problem is that nav branch can't easily clip parent group when there is a move request.

8
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@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for Allegro 5
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
// On Windows, you can install Allegro5 using vcpkg:
// git clone https://github.com/Microsoft/vcpkg

2
examples/example_android_opengl3/android/app/src/main/AndroidManifest.xml
View File

@ -11,7 +11,7 @@
android:name="imgui.example.android.MainActivity"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
android:configChanges="orientation|keyboardHidden|screenSize"
android:exported="false">
android:exported="true">
<meta-data android:name="android.app.lib_name"
android:value="ImGuiExample" />

9
examples/example_android_opengl3/main.cpp
View File

@ -1,5 +1,10 @@
// dear imgui: standalone example application for Android + OpenGL ES 3
// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp.
// 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
#include "imgui.h"
#include "imgui_impl_android.h"
@ -156,7 +161,7 @@ void Init(struct android_app* app)
// We load the default font with increased size to improve readability on many devices with "high" DPI.
// FIXME: Put some effort into DPI awareness.
// Important: when calling AddFontFromMemoryTTF(), ownership of font_data is transfered by Dear ImGui by default (deleted is handled by Dear ImGui), unless we set FontDataOwnedByAtlas=false in ImFontConfig
// Important: when calling AddFontFromMemoryTTF(), ownership of font_data is transferred by Dear ImGui by default (deleted is handled by Dear ImGui), unless we set FontDataOwnedByAtlas=false in ImFontConfig
ImFontConfig font_cfg;
font_cfg.SizePixels = 22.0f;
io.Fonts->AddFontDefault(&font_cfg);

8
examples/example_apple_metal/main.mm
View File

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for OSX + Metal.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#import <Foundation/Foundation.h>

8
examples/example_apple_opengl2/main.mm
View File

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for OSX + OpenGL2, using legacy fixed pipeline
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#import <Cocoa/Cocoa.h>
#import <OpenGL/gl.h>

246
examples/example_emscripten_wgpu/main.cpp
View File

@ -1,246 +0,0 @@
// Dear ImGui: standalone example application for Emscripten, using GLFW + WebGPU
// (Emscripten is a C++-to-javascript compiler, used to publish executables for the web. See https://emscripten.org/)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#include "imgui.h"
#include "imgui_impl_glfw.h"
#include "imgui_impl_wgpu.h"
#include <stdio.h>
#include <emscripten.h>
#include <emscripten/html5.h>
#include <emscripten/html5_webgpu.h>
#include <GLFW/glfw3.h>
#include <webgpu/webgpu.h>
#include <webgpu/webgpu_cpp.h>
// Global WebGPU required states
static WGPUDevice wgpu_device = nullptr;
static WGPUSurface wgpu_surface = nullptr;
static WGPUSwapChain wgpu_swap_chain = nullptr;
static int wgpu_swap_chain_width = 0;
static int wgpu_swap_chain_height = 0;
// Forward declarations
static void MainLoopStep(void* window);
static bool InitWGPU();
static void print_glfw_error(int error, const char* description);
static void print_wgpu_error(WGPUErrorType error_type, const char* message, void*);
// Main code
int main(int, char**)
{
glfwSetErrorCallback(print_glfw_error);
if (!glfwInit())
return 1;
// Make sure GLFW does not initialize any graphics context.
// This needs to be done explicitly later.
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
GLFWwindow* window = glfwCreateWindow(1280, 720, "Dear ImGui GLFW+WebGPU example", nullptr, nullptr);
if (!window)
{
glfwTerminate();
return 1;
}
// Initialize the WebGPU environment
if (!InitWGPU())
{
if (window)
glfwDestroyWindow(window);
glfwTerminate();
return 1;
}
glfwShowWindow(window);
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
// For an Emscripten build we are disabling file-system access, so let's not attempt to do a fopen() of the imgui.ini file.
// You may manually call LoadIniSettingsFromMemory() to load settings from your own storage.
io.IniFilename = nullptr;
// Setup Dear ImGui style
ImGui::StyleColorsDark();
//ImGui::StyleColorsLight();
// Setup Platform/Renderer backends
ImGui_ImplGlfw_InitForOther(window, true);
ImGui_ImplWGPU_Init(wgpu_device, 3, WGPUTextureFormat_RGBA8Unorm, WGPUTextureFormat_Undefined);
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
// - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
// - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
// - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
// - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
// - Read 'docs/FONTS.md' for more instructions and details.
// - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
// - Emscripten allows preloading a file or folder to be accessible at runtime. See Makefile for details.
//io.Fonts->AddFontDefault();
#ifndef IMGUI_DISABLE_FILE_FUNCTIONS
//io.Fonts->AddFontFromFileTTF("fonts/segoeui.ttf", 18.0f);
io.Fonts->AddFontFromFileTTF("fonts/DroidSans.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("fonts/Roboto-Medium.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("fonts/Cousine-Regular.ttf", 15.0f);
//io.Fonts->AddFontFromFileTTF("fonts/ProggyTiny.ttf", 10.0f);
//ImFont* font = io.Fonts->AddFontFromFileTTF("fonts/ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
//IM_ASSERT(font != nullptr);
#endif
// This function will directly return and exit the main function.
// Make sure that no required objects get cleaned up.
// This way we can use the browsers 'requestAnimationFrame' to control the rendering.
emscripten_set_main_loop_arg(MainLoopStep, window, 0, false);
return 0;
}
static bool InitWGPU()
{
wgpu_device = emscripten_webgpu_get_device();
if (!wgpu_device)
return false;
wgpuDeviceSetUncapturedErrorCallback(wgpu_device, print_wgpu_error, nullptr);
// Use C++ wrapper due to misbehavior in Emscripten.
// Some offset computation for wgpuInstanceCreateSurface in JavaScript
// seem to be inline with struct alignments in the C++ structure
wgpu::SurfaceDescriptorFromCanvasHTMLSelector html_surface_desc = {};
html_surface_desc.selector = "#canvas";
wgpu::SurfaceDescriptor surface_desc = {};
surface_desc.nextInChain = &html_surface_desc;
// Use 'null' instance
wgpu::Instance instance = {};
wgpu_surface = instance.CreateSurface(&surface_desc).Release();
return true;
}
static void MainLoopStep(void* window)
{
ImGuiIO& io = ImGui::GetIO();
glfwPollEvents();
int width, height;
glfwGetFramebufferSize((GLFWwindow*)window, &width, &height);
// React to changes in screen size
if (width != wgpu_swap_chain_width && height != wgpu_swap_chain_height)
{
ImGui_ImplWGPU_InvalidateDeviceObjects();
if (wgpu_swap_chain)
wgpuSwapChainRelease(wgpu_swap_chain);
wgpu_swap_chain_width = width;
wgpu_swap_chain_height = height;
WGPUSwapChainDescriptor swap_chain_desc = {};
swap_chain_desc.usage = WGPUTextureUsage_RenderAttachment;
swap_chain_desc.format = WGPUTextureFormat_RGBA8Unorm;
swap_chain_desc.width = width;
swap_chain_desc.height = height;
swap_chain_desc.presentMode = WGPUPresentMode_Fifo;
wgpu_swap_chain = wgpuDeviceCreateSwapChain(wgpu_device, wgpu_surface, &swap_chain_desc);
ImGui_ImplWGPU_CreateDeviceObjects();
}
// Start the Dear ImGui frame
ImGui_ImplWGPU_NewFrame();
ImGui_ImplGlfw_NewFrame();
ImGui::NewFrame();
// Our state
// (we use static, which essentially makes the variable globals, as a convenience to keep the example code easy to follow)
static bool show_demo_window = true;
static bool show_another_window = false;
static ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
// 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
if (show_demo_window)
ImGui::ShowDemoWindow(&show_demo_window);
// 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
{
static float f = 0.0f;
static int counter = 0;
ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it.
ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too)
ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state
ImGui::Checkbox("Another Window", &show_another_window);
ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated)
counter++;
ImGui::SameLine();
ImGui::Text("counter = %d", counter);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
ImGui::End();
}
// 3. Show another simple window.
if (show_another_window)
{
ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
ImGui::Text("Hello from another window!");
if (ImGui::Button("Close Me"))
show_another_window = false;
ImGui::End();
}
// Rendering
ImGui::Render();
WGPURenderPassColorAttachment color_attachments = {};
color_attachments.loadOp = WGPULoadOp_Clear;
color_attachments.storeOp = WGPUStoreOp_Store;
color_attachments.clearValue = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
color_attachments.view = wgpuSwapChainGetCurrentTextureView(wgpu_swap_chain);
WGPURenderPassDescriptor render_pass_desc = {};
render_pass_desc.colorAttachmentCount = 1;
render_pass_desc.colorAttachments = &color_attachments;
render_pass_desc.depthStencilAttachment = nullptr;
WGPUCommandEncoderDescriptor enc_desc = {};
WGPUCommandEncoder encoder = wgpuDeviceCreateCommandEncoder(wgpu_device, &enc_desc);
WGPURenderPassEncoder pass = wgpuCommandEncoderBeginRenderPass(encoder, &render_pass_desc);
ImGui_ImplWGPU_RenderDrawData(ImGui::GetDrawData(), pass);
wgpuRenderPassEncoderEnd(pass);
WGPUCommandBufferDescriptor cmd_buffer_desc = {};
WGPUCommandBuffer cmd_buffer = wgpuCommandEncoderFinish(encoder, &cmd_buffer_desc);
WGPUQueue queue = wgpuDeviceGetQueue(wgpu_device);
wgpuQueueSubmit(queue, 1, &cmd_buffer);
}
static void print_glfw_error(int error, const char* description)
{
printf("GLFW Error %d: %s\n", error, description);
}
static void print_wgpu_error(WGPUErrorType error_type, const char* message, void*)
{
const char* error_type_lbl = "";
switch (error_type)
{
case WGPUErrorType_Validation: error_type_lbl = "Validation"; break;
case WGPUErrorType_OutOfMemory: error_type_lbl = "Out of memory"; break;
case WGPUErrorType_Unknown: error_type_lbl = "Unknown"; break;
case WGPUErrorType_DeviceLost: error_type_lbl = "Device lost"; break;
default: error_type_lbl = "Unknown";
}
printf("%s error: %s\n", error_type_lbl, message);
}

4
examples/example_glfw_metal/Makefile
View File

@ -14,10 +14,10 @@ SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui
OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
LIBS = -framework Metal -framework MetalKit -framework Cocoa -framework IOKit -framework CoreVideo -framework QuartzCore
LIBS += -L/usr/local/lib -L/opt/homebrew/lib
LIBS += -L/usr/local/lib -L/opt/homebrew/lib -L/opt/local/lib
LIBS += -lglfw
CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I/usr/local/include -I/opt/homebrew/include
CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I/usr/local/include -I/opt/homebrew/include -I/opt/local/include
CXXFLAGS += -Wall -Wformat
CFLAGS = $(CXXFLAGS)

8
examples/example_glfw_metal/main.mm
View File

@ -1,7 +1,11 @@
// Dear ImGui: standalone example application for GLFW + Metal, using programmable pipeline
// (GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_glfw.h"

13
examples/example_glfw_opengl2/main.cpp
View File

@ -1,7 +1,11 @@
// Dear ImGui: standalone example application for GLFW + OpenGL2, using legacy fixed pipeline
// (GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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 the example_glfw_opengl2/ folder**
@ -87,6 +91,11 @@ int main(int, char**)
// - 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.
glfwPollEvents();
if (glfwGetWindowAttrib(window, GLFW_ICONIFIED) != 0)
{
ImGui_ImplGlfw_Sleep(10);
continue;
}
// Start the Dear ImGui frame
ImGui_ImplOpenGL2_NewFrame();

2
examples/example_glfw_opengl3/Makefile.emscripten
View File

@ -59,7 +59,7 @@ endif
CPPFLAGS += -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
#CPPFLAGS += -g
CPPFLAGS += -Wall -Wformat -Os $(EMS)
# LDFLAGS += --shell-file ../libs/emscripten/shell_minimal.html
LDFLAGS += --shell-file ../libs/emscripten/shell_minimal.html
LDFLAGS += $(EMS)
##---------------------------------------------------------------------

16
examples/example_glfw_opengl3/main.cpp
View File

@ -1,7 +1,11 @@
// Dear ImGui: standalone example application for GLFW + OpenGL 3, using programmable pipeline
// (GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_glfw.h"
@ -80,6 +84,9 @@ int main(int, char**)
// Setup Platform/Renderer backends
ImGui_ImplGlfw_InitForOpenGL(window, true);
#ifdef __EMSCRIPTEN__
ImGui_ImplGlfw_InstallEmscriptenCallbacks(window, "#canvas");
#endif
ImGui_ImplOpenGL3_Init(glsl_version);
// Load Fonts
@ -120,6 +127,11 @@ int main(int, char**)
// - 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.
glfwPollEvents();
if (glfwGetWindowAttrib(window, GLFW_ICONIFIED) != 0)
{
ImGui_ImplGlfw_Sleep(10);
continue;
}
// Start the Dear ImGui frame
ImGui_ImplOpenGL3_NewFrame();

123
examples/example_glfw_vulkan/main.cpp
View File

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for Glfw + Vulkan
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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.
@ -17,8 +21,12 @@
#define GLFW_INCLUDE_NONE
#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
#include <vulkan/vulkan.h>
//#include <vulkan/vulkan_beta.h>
// Volk headers
#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
#define VOLK_IMPLEMENTATION
#include <volk.h>
#endif
// [Win32] Our example includes a copy of glfw3.lib pre-compiled with VS2010 to maximize ease of testing and compatibility with old VS compilers.
// To link with VS2010-era libraries, VS2015+ requires linking with legacy_stdio_definitions.lib, which we do using this pragma.
@ -27,9 +35,9 @@
#pragma comment(lib, "legacy_stdio_definitions")
#endif
//#define IMGUI_UNLIMITED_FRAME_RATE
//#define APP_USE_UNLIMITED_FRAME_RATE
#ifdef _DEBUG
#define IMGUI_VULKAN_DEBUG_REPORT
#define APP_USE_VULKAN_DEBUG_REPORT
#endif
// Data
@ -60,14 +68,14 @@ static void check_vk_result(VkResult err)
abort();
}
#ifdef IMGUI_VULKAN_DEBUG_REPORT
#ifdef APP_USE_VULKAN_DEBUG_REPORT
static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objectType, uint64_t object, size_t location, int32_t messageCode, const char* pLayerPrefix, const char* pMessage, void* pUserData)
{
(void)flags; (void)object; (void)location; (void)messageCode; (void)pUserData; (void)pLayerPrefix; // Unused arguments
fprintf(stderr, "[vulkan] Debug report from ObjectType: %i\nMessage: %s\n\n", objectType, pMessage);
return VK_FALSE;
}
#endif // IMGUI_VULKAN_DEBUG_REPORT
#endif // APP_USE_VULKAN_DEBUG_REPORT
static bool IsExtensionAvailable(const ImVector<VkExtensionProperties>& properties, const char* extension)
{
@ -109,6 +117,9 @@ static VkPhysicalDevice SetupVulkan_SelectPhysicalDevice()
static void SetupVulkan(ImVector<const char*> instance_extensions)
{
VkResult err;
#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
volkInitialize();
#endif
// Create Vulkan Instance
{
@ -135,7 +146,7 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
#endif
// Enabling validation layers
#ifdef IMGUI_VULKAN_DEBUG_REPORT
#ifdef APP_USE_VULKAN_DEBUG_REPORT
const char* layers[] = { "VK_LAYER_KHRONOS_validation" };
create_info.enabledLayerCount = 1;
create_info.ppEnabledLayerNames = layers;
@ -147,17 +158,20 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
create_info.ppEnabledExtensionNames = instance_extensions.Data;
err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
check_vk_result(err);
#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
volkLoadInstance(g_Instance);
#endif
// Setup the debug report callback
#ifdef IMGUI_VULKAN_DEBUG_REPORT
auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
IM_ASSERT(vkCreateDebugReportCallbackEXT != nullptr);
#ifdef APP_USE_VULKAN_DEBUG_REPORT
auto f_vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
IM_ASSERT(f_vkCreateDebugReportCallbackEXT != nullptr);
VkDebugReportCallbackCreateInfoEXT debug_report_ci = {};
debug_report_ci.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT;
debug_report_ci.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
debug_report_ci.pfnCallback = debug_report;
debug_report_ci.pUserData = nullptr;
err = vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
err = f_vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
check_vk_result(err);
#endif
}
@ -215,25 +229,17 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
}
// Create Descriptor Pool
// The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that)
// If you wish to load e.g. additional textures you may need to alter pools sizes.
{
VkDescriptorPoolSize pool_sizes[] =
{
{ VK_DESCRIPTOR_TYPE_SAMPLER, 1000 },
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1000 },
{ VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, 1000 },
{ VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, 1000 },
{ VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER, 1000 },
{ VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER, 1000 },
{ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1000 },
{ VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, 1000 },
{ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC, 1000 },
{ VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC, 1000 },
{ VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT, 1000 }
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 },
};
VkDescriptorPoolCreateInfo pool_info = {};
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
pool_info.maxSets = 1000 * IM_ARRAYSIZE(pool_sizes);
pool_info.maxSets = 1;
pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
pool_info.pPoolSizes = pool_sizes;
err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);
@ -262,7 +268,7 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
// Select Present Mode
#ifdef IMGUI_UNLIMITED_FRAME_RATE
#ifdef APP_USE_UNLIMITED_FRAME_RATE
VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR };
#else
VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_FIFO_KHR };
@ -279,11 +285,11 @@ static void CleanupVulkan()
{
vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator);
#ifdef IMGUI_VULKAN_DEBUG_REPORT
#ifdef APP_USE_VULKAN_DEBUG_REPORT
// Remove the debug report callback
auto vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator);
#endif // IMGUI_VULKAN_DEBUG_REPORT
auto f_vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
f_vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator);
#endif // APP_USE_VULKAN_DEBUG_REPORT
vkDestroyDevice(g_Device, g_Allocator);
vkDestroyInstance(g_Instance, g_Allocator);
@ -380,7 +386,7 @@ static void FramePresent(ImGui_ImplVulkanH_Window* wd)
return;
}
check_vk_result(err);
wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->ImageCount; // Now we can use the next set of semaphores
wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->SemaphoreCount; // Now we can use the next set of semaphores
}
// Main code
@ -438,13 +444,14 @@ int main(int, char**)
init_info.Queue = g_Queue;
init_info.PipelineCache = g_PipelineCache;
init_info.DescriptorPool = g_DescriptorPool;
init_info.RenderPass = wd->RenderPass;
init_info.Subpass = 0;
init_info.MinImageCount = g_MinImageCount;
init_info.ImageCount = wd->ImageCount;
init_info.MSAASamples = VK_SAMPLE_COUNT_1_BIT;
init_info.Allocator = g_Allocator;
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
ImGui_ImplVulkan_Init(&init_info);
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
@ -462,36 +469,6 @@ int main(int, char**)
//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
//IM_ASSERT(font != nullptr);
// Upload Fonts
{
// Use any command queue
VkCommandPool command_pool = wd->Frames[wd->FrameIndex].CommandPool;
VkCommandBuffer command_buffer = wd->Frames[wd->FrameIndex].CommandBuffer;
err = vkResetCommandPool(g_Device, command_pool, 0);
check_vk_result(err);
VkCommandBufferBeginInfo begin_info = {};
begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
begin_info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
err = vkBeginCommandBuffer(command_buffer, &begin_info);
check_vk_result(err);
ImGui_ImplVulkan_CreateFontsTexture(command_buffer);
VkSubmitInfo end_info = {};
end_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
end_info.commandBufferCount = 1;
end_info.pCommandBuffers = &command_buffer;
err = vkEndCommandBuffer(command_buffer);
check_vk_result(err);
err = vkQueueSubmit(g_Queue, 1, &end_info, VK_NULL_HANDLE);
check_vk_result(err);
err = vkDeviceWaitIdle(g_Device);
check_vk_result(err);
ImGui_ImplVulkan_DestroyFontUploadObjects();
}
// Our state
bool show_demo_window = true;
bool show_another_window = false;
@ -508,17 +485,19 @@ int main(int, char**)
glfwPollEvents();
// Resize swap chain?
if (g_SwapChainRebuild)
int fb_width, fb_height;
glfwGetFramebufferSize(window, &fb_width, &fb_height);
if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height))
{
int width, height;
glfwGetFramebufferSize(window, &width, &height);
if (width > 0 && height > 0)
{
ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, width, height, g_MinImageCount);
g_MainWindowData.FrameIndex = 0;
g_SwapChainRebuild = false;
}
ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount);
g_MainWindowData.FrameIndex = 0;
g_SwapChainRebuild = false;
}
if (glfwGetWindowAttrib(window, GLFW_ICONIFIED) != 0)
{
ImGui_ImplGlfw_Sleep(10);
continue;
}
// Start the Dear ImGui frame

112
examples/example_glfw_wgpu/CMakeLists.txt Normal file
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@ -0,0 +1,112 @@
# Building for desktop (WebGPU-native) with Dawn:
# 1. git clone https://github.com/google/dawn dawn
# 2. cmake -B build -DIMGUI_DAWN_DIR=dawn
# 3. cmake --build build
# The resulting binary will be found at one of the following locations:
# * build/Debug/example_glfw_wgpu[.exe]
# * build/example_glfw_wgpu[.exe]
# Building for Emscripten:
# 1. Install Emscripten SDK following the instructions: https://emscripten.org/docs/getting_started/downloads.html
# 2. Install Ninja build system
# 3. emcmake cmake -G Ninja -B build
# 3. cmake --build build
# 4. emrun build/index.html
cmake_minimum_required(VERSION 3.10.2)
project(imgui_example_glfw_wgpu C CXX)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
endif()
set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
# Dear ImGui
set(IMGUI_DIR ../../)
# Libraries
if(EMSCRIPTEN)
if(EMSCRIPTEN_VERSION VERSION_GREATER_EQUAL "3.1.57")
set(IMGUI_EMSCRIPTEN_GLFW3 "--use-port=contrib.glfw3" CACHE STRING "Choose between --use-port=contrib.glfw3 and -sUSE_GLFW=3 for GLFW implementation (default to --use-port=contrib.glfw3)")
else()
# cannot use contrib.glfw3 prior to 3.1.57
set(IMGUI_EMSCRIPTEN_GLFW3 "-sUSE_GLFW=3" CACHE STRING "Use -sUSE_GLFW=3 for GLFW implementation" FORCE)
endif()
set(LIBRARIES glfw)
add_compile_options(-sDISABLE_EXCEPTION_CATCHING=1 -DIMGUI_DISABLE_FILE_FUNCTIONS=1)
else()
# Dawn wgpu desktop
set(DAWN_FETCH_DEPENDENCIES ON)
set(IMGUI_DAWN_DIR CACHE PATH "Path to Dawn repository")
if (NOT IMGUI_DAWN_DIR)
message(FATAL_ERROR "Please specify the Dawn repository by setting IMGUI_DAWN_DIR")
endif()
option(DAWN_FETCH_DEPENDENCIES "Use fetch_dawn_dependencies.py as an alternative to using depot_tools" ON)
# Dawn builds many things by default - disable things we don't need
option(DAWN_BUILD_SAMPLES "Enables building Dawn's samples" OFF)
option(TINT_BUILD_CMD_TOOLS "Build the Tint command line tools" OFF)
option(TINT_BUILD_DOCS "Build documentation" OFF)
option(TINT_BUILD_TESTS "Build tests" OFF)
if (NOT APPLE)
option(TINT_BUILD_MSL_WRITER "Build the MSL output writer" OFF)
endif()
if(WIN32)
option(TINT_BUILD_SPV_READER "Build the SPIR-V input reader" OFF)
option(TINT_BUILD_WGSL_READER "Build the WGSL input reader" ON)
option(TINT_BUILD_GLSL_WRITER "Build the GLSL output writer" OFF)
option(TINT_BUILD_GLSL_VALIDATOR "Build the GLSL output validator" OFF)
option(TINT_BUILD_SPV_WRITER "Build the SPIR-V output writer" OFF)
option(TINT_BUILD_WGSL_WRITER "Build the WGSL output writer" ON)
endif()
add_subdirectory("${IMGUI_DAWN_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/dawn" EXCLUDE_FROM_ALL)
set(LIBRARIES webgpu_dawn webgpu_cpp webgpu_glfw glfw)
endif()
add_executable(example_glfw_wgpu
main.cpp
# backend files
${IMGUI_DIR}/backends/imgui_impl_glfw.cpp
${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp
# Dear ImGui files
${IMGUI_DIR}/imgui.cpp
${IMGUI_DIR}/imgui_draw.cpp
${IMGUI_DIR}/imgui_demo.cpp
${IMGUI_DIR}/imgui_tables.cpp
${IMGUI_DIR}/imgui_widgets.cpp
)
target_include_directories(example_glfw_wgpu PUBLIC
${IMGUI_DIR}
${IMGUI_DIR}/backends
)
target_link_libraries(example_glfw_wgpu PUBLIC ${LIBRARIES})
# Emscripten settings
if(EMSCRIPTEN)
if("${IMGUI_EMSCRIPTEN_GLFW3}" STREQUAL "--use-port=contrib.glfw3")
target_compile_options(example_glfw_wgpu PUBLIC
"${IMGUI_EMSCRIPTEN_GLFW3}"
)
endif()
message(STATUS "Using ${IMGUI_EMSCRIPTEN_GLFW3} GLFW implementation")
target_link_options(example_glfw_wgpu PRIVATE
"-sUSE_WEBGPU=1"
"${IMGUI_EMSCRIPTEN_GLFW3}"
"-sWASM=1"
"-sALLOW_MEMORY_GROWTH=1"
"-sNO_EXIT_RUNTIME=0"
"-sASSERTIONS=1"
"-sDISABLE_EXCEPTION_CATCHING=1"
"-sNO_FILESYSTEM=1"
)
set_target_properties(example_glfw_wgpu PROPERTIES OUTPUT_NAME "index")
# copy our custom index.html to build directory
add_custom_command(TARGET example_glfw_wgpu POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different "${CMAKE_CURRENT_LIST_DIR}/web/index.html" $<TARGET_FILE_DIR:example_glfw_wgpu>
)
endif()

0
examples/example_emscripten_wgpu/Makefile → examples/example_glfw_wgpu/Makefile.emscripten
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4
examples/example_emscripten_wgpu/README.md → examples/example_glfw_wgpu/README.md
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@ -6,7 +6,7 @@
- You may also refer to our [Continuous Integration setup](https://github.com/ocornut/imgui/tree/master/.github/workflows) for Emscripten setup.
- Then build using `make` while in the `example_emscripten_wgpu/` directory.
- Then build using `make -f Makefile.emscripten` while in the `example_glfw_wgpu/` directory.
- Requires recent Emscripten as WGPU is still a work-in-progress API.
@ -18,7 +18,7 @@ To run on a local machine:
- Otherwise, generally you will need a local webserver:
- Quoting [https://emscripten.org/docs/getting_started](https://emscripten.org/docs/getting_started/Tutorial.html#generating-html):<br>
_"Unfortunately several browsers (including Chrome, Safari, and Internet Explorer) do not support file:// [XHR](https://emscripten.org/docs/site/glossary.html#term-xhr) requests, and can’t load extra files needed by the HTML (like a .wasm file, or packaged file data as mentioned lower down). For these browsers you’ll need to serve the files using a [local webserver](https://emscripten.org/docs/getting_started/FAQ.html#faq-local-webserver) and then open http://localhost:8000/hello.html."_
- Emscripten SDK has a handy `emrun` command: `emrun web/example_emscripten_opengl3.html --browser firefox` which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
- Emscripten SDK has a handy `emrun` command: `emrun web/example_glfw_wgpu.html --browser firefox` which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
- You may use Python 3 builtin webserver: `python -m http.server -d web` (this is what `make serve` uses).
- You may use Python 2 builtin webserver: `cd web && python -m SimpleHTTPServer`.
- If you are accessing the files over a network, certain browsers, such as Firefox, will restrict Gamepad API access to secure contexts only (e.g. https only).

350
examples/example_glfw_wgpu/main.cpp Normal file
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@ -0,0 +1,350 @@
// Dear ImGui: standalone example application for using GLFW + WebGPU
// - Emscripten is supported for publishing on web. See https://emscripten.org.
// - Dawn is used as a WebGPU implementation on desktop.
// 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
#include "imgui.h"
#include "imgui_impl_glfw.h"
#include "imgui_impl_wgpu.h"
#include <stdio.h>
#ifdef __EMSCRIPTEN__
#include <emscripten.h>
#include <emscripten/html5.h>
#include <emscripten/html5_webgpu.h>
#else
#include <webgpu/webgpu_glfw.h>
#endif
#include <GLFW/glfw3.h>
#include <webgpu/webgpu.h>
#include <webgpu/webgpu_cpp.h>
// This example can also compile and run with Emscripten! See 'Makefile.emscripten' for details.
#ifdef __EMSCRIPTEN__
#include "../libs/emscripten/emscripten_mainloop_stub.h"
#endif
// Global WebGPU required states
static WGPUInstance wgpu_instance = nullptr;
static WGPUDevice wgpu_device = nullptr;
static WGPUSurface wgpu_surface = nullptr;
static WGPUTextureFormat wgpu_preferred_fmt = WGPUTextureFormat_RGBA8Unorm;
static WGPUSwapChain wgpu_swap_chain = nullptr;
static int wgpu_swap_chain_width = 1280;
static int wgpu_swap_chain_height = 720;
// Forward declarations
static bool InitWGPU(GLFWwindow* window);
static void CreateSwapChain(int width, int height);
static void glfw_error_callback(int error, const char* description)
{
printf("GLFW Error %d: %s\n", error, description);
}
static void wgpu_error_callback(WGPUErrorType error_type, const char* message, void*)
{
const char* error_type_lbl = "";
switch (error_type)
{
case WGPUErrorType_Validation: error_type_lbl = "Validation"; break;
case WGPUErrorType_OutOfMemory: error_type_lbl = "Out of memory"; break;
case WGPUErrorType_Unknown: error_type_lbl = "Unknown"; break;
case WGPUErrorType_DeviceLost: error_type_lbl = "Device lost"; break;
default: error_type_lbl = "Unknown";
}
printf("%s error: %s\n", error_type_lbl, message);
}
// Main code
int main(int, char**)
{
glfwSetErrorCallback(glfw_error_callback);
if (!glfwInit())
return 1;
// Make sure GLFW does not initialize any graphics context.
// This needs to be done explicitly later.
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
GLFWwindow* window = glfwCreateWindow(wgpu_swap_chain_width, wgpu_swap_chain_height, "Dear ImGui GLFW+WebGPU example", nullptr, nullptr);
if (window == nullptr)
return 1;
// Initialize the WebGPU environment
if (!InitWGPU(window))
{
if (window)
glfwDestroyWindow(window);
glfwTerminate();
return 1;
}
CreateSwapChain(wgpu_swap_chain_width, wgpu_swap_chain_height);
glfwShowWindow(window);
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
// Setup Dear ImGui style
ImGui::StyleColorsDark();
//ImGui::StyleColorsLight();
// Setup Platform/Renderer backends
ImGui_ImplGlfw_InitForOther(window, true);
#ifdef __EMSCRIPTEN__
ImGui_ImplGlfw_InstallEmscriptenCallbacks(window, "#canvas");
#endif
ImGui_ImplWGPU_InitInfo init_info;
init_info.Device = wgpu_device;
init_info.NumFramesInFlight = 3;
init_info.RenderTargetFormat = wgpu_preferred_fmt;
init_info.DepthStencilFormat = WGPUTextureFormat_Undefined;
ImGui_ImplWGPU_Init(&init_info);
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
// - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
// - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
// - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
// - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
// - Read 'docs/FONTS.md' for more instructions and details.
// - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
// - Emscripten allows preloading a file or folder to be accessible at runtime. See Makefile for details.
//io.Fonts->AddFontDefault();
#ifndef IMGUI_DISABLE_FILE_FUNCTIONS
//io.Fonts->AddFontFromFileTTF("fonts/segoeui.ttf", 18.0f);
//io.Fonts->AddFontFromFileTTF("fonts/DroidSans.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("fonts/Roboto-Medium.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("fonts/Cousine-Regular.ttf", 15.0f);
//io.Fonts->AddFontFromFileTTF("fonts/ProggyTiny.ttf", 10.0f);
//ImFont* font = io.Fonts->AddFontFromFileTTF("fonts/ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
//IM_ASSERT(font != nullptr);
#endif
// Our state
bool show_demo_window = true;
bool show_another_window = false;
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
// Main loop
#ifdef __EMSCRIPTEN__
// For an Emscripten build we are disabling file-system access, so let's not attempt to do a fopen() of the imgui.ini file.
// You may manually call LoadIniSettingsFromMemory() to load settings from your own storage.
io.IniFilename = nullptr;
EMSCRIPTEN_MAINLOOP_BEGIN
#else
while (!glfwWindowShouldClose(window))
#endif
{
// Poll and handle events (inputs, window resize, etc.)
// 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.
glfwPollEvents();
if (glfwGetWindowAttrib(window, GLFW_ICONIFIED) != 0)
{
ImGui_ImplGlfw_Sleep(10);
continue;
}
// React to changes in screen size
int width, height;
glfwGetFramebufferSize((GLFWwindow*)window, &width, &height);
if (width != wgpu_swap_chain_width || height != wgpu_swap_chain_height)
{
ImGui_ImplWGPU_InvalidateDeviceObjects();
CreateSwapChain(width, height);
ImGui_ImplWGPU_CreateDeviceObjects();
}
// Start the Dear ImGui frame
ImGui_ImplWGPU_NewFrame();
ImGui_ImplGlfw_NewFrame();
ImGui::NewFrame();
// 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
if (show_demo_window)
ImGui::ShowDemoWindow(&show_demo_window);
// 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
{
static float f = 0.0f;
static int counter = 0;
ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it.
ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too)
ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state
ImGui::Checkbox("Another Window", &show_another_window);
ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated)
counter++;
ImGui::SameLine();
ImGui::Text("counter = %d", counter);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
ImGui::End();
}
// 3. Show another simple window.
if (show_another_window)
{
ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
ImGui::Text("Hello from another window!");
if (ImGui::Button("Close Me"))
show_another_window = false;
ImGui::End();
}
// Rendering
ImGui::Render();
#ifndef __EMSCRIPTEN__
// Tick needs to be called in Dawn to display validation errors
wgpuDeviceTick(wgpu_device);
#endif
WGPURenderPassColorAttachment color_attachments = {};
color_attachments.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
color_attachments.loadOp = WGPULoadOp_Clear;
color_attachments.storeOp = WGPUStoreOp_Store;
color_attachments.clearValue = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
color_attachments.view = wgpuSwapChainGetCurrentTextureView(wgpu_swap_chain);
WGPURenderPassDescriptor render_pass_desc = {};
render_pass_desc.colorAttachmentCount = 1;
render_pass_desc.colorAttachments = &color_attachments;
render_pass_desc.depthStencilAttachment = nullptr;
WGPUCommandEncoderDescriptor enc_desc = {};
WGPUCommandEncoder encoder = wgpuDeviceCreateCommandEncoder(wgpu_device, &enc_desc);
WGPURenderPassEncoder pass = wgpuCommandEncoderBeginRenderPass(encoder, &render_pass_desc);
ImGui_ImplWGPU_RenderDrawData(ImGui::GetDrawData(), pass);
wgpuRenderPassEncoderEnd(pass);
WGPUCommandBufferDescriptor cmd_buffer_desc = {};
WGPUCommandBuffer cmd_buffer = wgpuCommandEncoderFinish(encoder, &cmd_buffer_desc);
WGPUQueue queue = wgpuDeviceGetQueue(wgpu_device);
wgpuQueueSubmit(queue, 1, &cmd_buffer);
#ifndef __EMSCRIPTEN__
wgpuSwapChainPresent(wgpu_swap_chain);
#endif
wgpuTextureViewRelease(color_attachments.view);
wgpuRenderPassEncoderRelease(pass);
wgpuCommandEncoderRelease(encoder);
wgpuCommandBufferRelease(cmd_buffer);
}
#ifdef __EMSCRIPTEN__
EMSCRIPTEN_MAINLOOP_END;
#endif
// Cleanup
ImGui_ImplWGPU_Shutdown();
ImGui_ImplGlfw_Shutdown();
ImGui::DestroyContext();
glfwDestroyWindow(window);
glfwTerminate();
return 0;
}
#ifndef __EMSCRIPTEN__
static WGPUAdapter RequestAdapter(WGPUInstance instance)
{
auto onAdapterRequestEnded = [](WGPURequestAdapterStatus status, WGPUAdapter adapter, const char* message, void* pUserData)
{
if (status == WGPURequestAdapterStatus_Success)
*(WGPUAdapter*)(pUserData) = adapter;
else
printf("Could not get WebGPU adapter: %s\n", message);
};
WGPUAdapter adapter;
wgpuInstanceRequestAdapter(instance, nullptr, onAdapterRequestEnded, (void*)&adapter);
return adapter;
}
static WGPUDevice RequestDevice(WGPUAdapter& adapter)
{
auto onDeviceRequestEnded = [](WGPURequestDeviceStatus status, WGPUDevice device, const char* message, void* pUserData)
{
if (status == WGPURequestDeviceStatus_Success)
*(WGPUDevice*)(pUserData) = device;
else
printf("Could not get WebGPU device: %s\n", message);
};
WGPUDevice device;
wgpuAdapterRequestDevice(adapter, nullptr, onDeviceRequestEnded, (void*)&device);
return device;
}
#endif
static bool InitWGPU(GLFWwindow* window)
{
wgpu::Instance instance = wgpuCreateInstance(nullptr);
#ifdef __EMSCRIPTEN__
wgpu_device = emscripten_webgpu_get_device();
if (!wgpu_device)
return false;
#else
WGPUAdapter adapter = RequestAdapter(instance.Get());
if (!adapter)
return false;
wgpu_device = RequestDevice(adapter);
#endif
#ifdef __EMSCRIPTEN__
wgpu::SurfaceDescriptorFromCanvasHTMLSelector html_surface_desc = {};
html_surface_desc.selector = "#canvas";
wgpu::SurfaceDescriptor surface_desc = {};
surface_desc.nextInChain = &html_surface_desc;
wgpu::Surface surface = instance.CreateSurface(&surface_desc);
wgpu::Adapter adapter = {};
wgpu_preferred_fmt = (WGPUTextureFormat)surface.GetPreferredFormat(adapter);
#else
wgpu::Surface surface = wgpu::glfw::CreateSurfaceForWindow(instance, window);
if (!surface)
return false;
wgpu_preferred_fmt = WGPUTextureFormat_BGRA8Unorm;
#endif
wgpu_instance = instance.MoveToCHandle();
wgpu_surface = surface.MoveToCHandle();
wgpuDeviceSetUncapturedErrorCallback(wgpu_device, wgpu_error_callback, nullptr);
return true;
}
static void CreateSwapChain(int width, int height)
{
if (wgpu_swap_chain)
wgpuSwapChainRelease(wgpu_swap_chain);
wgpu_swap_chain_width = width;
wgpu_swap_chain_height = height;
WGPUSwapChainDescriptor swap_chain_desc = {};
swap_chain_desc.usage = WGPUTextureUsage_RenderAttachment;
swap_chain_desc.format = wgpu_preferred_fmt;
swap_chain_desc.width = width;
swap_chain_desc.height = height;
swap_chain_desc.presentMode = WGPUPresentMode_Fifo;
wgpu_swap_chain = wgpuDeviceCreateSwapChain(wgpu_device, wgpu_surface, &swap_chain_desc);
}

6
examples/example_emscripten_wgpu/web/index.html → examples/example_glfw_wgpu/web/index.html
View File

@ -3,7 +3,7 @@
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"/>
<title>Dear ImGui Emscripten+WebGPU example</title>
<title>Dear ImGui Emscripten+GLFW+WebGPU example</title>
<style>
body { margin: 0; background-color: black }
.emscripten {
@ -63,6 +63,10 @@
// Initialize the graphics adapter
{
if (!navigator.gpu) {
throw Error("WebGPU not supported.");
}
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
Module.preinitializedWebGPUDevice = device;

8
examples/example_glut_opengl2/main.cpp
View File

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for GLUT/FreeGLUT + OpenGL2, using legacy fixed pipeline
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
// !!! 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. !!!

2
examples/example_null/Makefile
View File

@ -1,6 +1,6 @@
#
# Cross Platform Makefile
# Compatible with MSYS2/MINGW, Ubuntu 14.04.1 and Mac OS X
# Compatible with MSYS2/MINGW, Ubuntu 14.04.1+ and Mac OS X
#
# Important: This is a "null backend" application, with no visible output or interaction!
# This is used for testing purpose and continuous integration, and has little use for end-user.

19
examples/example_sdl2_directx11/main.cpp
View File

@ -1,7 +1,11 @@
// Dear ImGui: standalone example application for SDL2 + DirectX 11
// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_sdl2.h"
@ -43,6 +47,12 @@ int main(int, char**)
// Setup window
SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+DirectX11 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
if (window == nullptr)
{
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1;
}
SDL_SysWMinfo wmInfo;
SDL_VERSION(&wmInfo.version);
SDL_GetWindowWMInfo(window, &wmInfo);
@ -116,6 +126,11 @@ int main(int, char**)
CreateRenderTarget();
}
}
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
{
SDL_Delay(10);
continue;
}
// Start the Dear ImGui frame
ImGui_ImplDX11_NewFrame();

8
examples/example_sdl2_metal/main.mm
View File

@ -1,7 +1,11 @@
// Dear ImGui: standalone example application for SDL2 + Metal
// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_sdl2.h"

19
examples/example_sdl2_opengl2/main.cpp
View File

@ -1,7 +1,11 @@
// Dear ImGui: standalone example application for SDL2 + OpenGL
// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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 the example_sdl2_opengl3/ folder**
@ -37,6 +41,12 @@ int main(int, char**)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+OpenGL example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
if (window == nullptr)
{
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1;
}
SDL_GLContext gl_context = SDL_GL_CreateContext(window);
SDL_GL_MakeCurrent(window, gl_context);
SDL_GL_SetSwapInterval(1); // Enable vsync
@ -95,6 +105,11 @@ int main(int, char**)
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
{
SDL_Delay(10);
continue;
}
// Start the Dear ImGui frame
ImGui_ImplOpenGL2_NewFrame();

19
examples/example_sdl2_opengl3/main.cpp
View File

@ -1,7 +1,11 @@
// Dear ImGui: standalone example application for SDL2 + OpenGL
// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_sdl2.h"
@ -64,6 +68,12 @@ int main(int, char**)
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+OpenGL3 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
if (window == nullptr)
{
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1;
}
SDL_GLContext gl_context = SDL_GL_CreateContext(window);
SDL_GL_MakeCurrent(window, gl_context);
SDL_GL_SetSwapInterval(1); // Enable vsync
@ -130,6 +140,11 @@ int main(int, char**)
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
{
SDL_Delay(10);
continue;
}
// Start the Dear ImGui frame
ImGui_ImplOpenGL3_NewFrame();

4
examples/example_sdl2_sdlrenderer/Makefile → examples/example_sdl2_sdlrenderer2/Makefile
View File

@ -14,11 +14,11 @@
#CXX = g++
#CXX = clang++
EXE = example_sdl2_sdlrenderer
EXE = example_sdl2_sdlrenderer2
IMGUI_DIR = ../..
SOURCES = main.cpp
SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_sdlrenderer.cpp
SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_sdlrenderer2.cpp
OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
UNAME_S := $(shell uname -s)

8
examples/example_sdl2_sdlrenderer/README.md → examples/example_sdl2_sdlrenderer2/README.md
View File

@ -5,21 +5,21 @@
```
set SDL2_DIR=path_to_your_sdl2_folder
cl /Zi /MD /utf-8 /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_sdlrenderer.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_sdlrenderer.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib /subsystem:console
cl /Zi /MD /utf-8 /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_sdlrenderer2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_sdlrenderer.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib /subsystem:console
# ^^ include paths ^^ source files ^^ output exe ^^ output dir ^^ libraries
# or for 64-bit:
cl /Zi /MD /utf-8 /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_sdlrenderer.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_sdlrenderer.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib /subsystem:console
cl /Zi /MD /utf-8 /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_sdlrenderer2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_sdlrenderer.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib /subsystem:console
```
- On Linux and similar Unixes
```
c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_sdlrenderer.cpp ../../imgui*.cpp `sdl2-config --libs` -lGL
c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_sdlrenderer2.cpp ../../imgui*.cpp `sdl2-config --libs` -lGL
```
- On Mac OS X
```
brew install sdl2
c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_sdlrenderer.cpp ../../imgui*.cpp `sdl2-config --libs` -framework OpenGl
c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_sdlrenderer2.cpp ../../imgui*.cpp `sdl2-config --libs` -framework OpenGl
```

4
examples/example_sdl2_sdlrenderer/build_win32.bat → examples/example_sdl2_sdlrenderer2/build_win32.bat
View File

@ -2,7 +2,7 @@
@set OUT_DIR=Debug
@set OUT_EXE=example_sdl2_sdlrenderer_
@set INCLUDES=/I..\.. /I..\..\backends /I%SDL2_DIR%\include
@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_sdlrenderer.cpp ..\..\imgui*.cpp
@set LIBS=/LIBPATH:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib
@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_sdlrenderer2.cpp ..\..\imgui*.cpp
@set LIBS=/LIBPATH:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib
mkdir %OUT_DIR%
cl /nologo /Zi /MD /utf-8 %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

9
examples/example_sdl2_sdlrenderer/example_sdl2_sdlrenderer.vcxproj → examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2.vcxproj
View File

@ -20,8 +20,9 @@
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{0C0B2BEA-311F-473C-9652-87923EF639E3}</ProjectGuid>
<RootNamespace>example_sdl2_sdlrenderer</RootNamespace>
<RootNamespace>example_sdl2_sdlrenderer2</RootNamespace>
<WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
<ProjectName>example_sdl2_sdlrenderer2</ProjectName>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
@ -165,7 +166,7 @@
<ClCompile Include="..\..\imgui_tables.cpp" />
<ClCompile Include="..\..\imgui_widgets.cpp" />
<ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp" />
<ClCompile Include="..\..\backends\imgui_impl_sdlrenderer.cpp" />
<ClCompile Include="..\..\backends\imgui_impl_sdlrenderer2.cpp" />
<ClCompile Include="main.cpp" />
</ItemGroup>
<ItemGroup>
@ -173,7 +174,7 @@
<ClInclude Include="..\..\imgui.h" />
<ClInclude Include="..\..\imgui_internal.h" />
<ClInclude Include="..\..\backends\imgui_impl_sdl2.h" />
<ClInclude Include="..\..\backends\imgui_impl_sdlrenderer.h" />
<ClInclude Include="..\..\backends\imgui_impl_sdlrenderer2.h" />
</ItemGroup>
<ItemGroup>
<None Include="..\..\misc\debuggers\imgui.natstepfilter" />
@ -183,4 +184,4 @@
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>
</Project>

6
examples/example_sdl2_sdlrenderer/example_sdl2_sdlrenderer.vcxproj.filters → examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2.vcxproj.filters
View File

@ -31,7 +31,7 @@
<ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp">
<Filter>sources</Filter>
</ClCompile>
<ClCompile Include="..\..\backends\imgui_impl_sdlrenderer.cpp">
<ClCompile Include="..\..\backends\imgui_impl_sdlrenderer2.cpp">
<Filter>sources</Filter>
</ClCompile>
</ItemGroup>
@ -45,7 +45,7 @@
<ClInclude Include="..\..\imgui_internal.h">
<Filter>imgui</Filter>
</ClInclude>
<ClInclude Include="..\..\backends\imgui_impl_sdlrenderer.h">
<ClInclude Include="..\..\backends\imgui_impl_sdlrenderer2.h">
<Filter>sources</Filter>
</ClInclude>
<ClInclude Include="..\..\backends\imgui_impl_sdl2.h">
@ -61,4 +61,4 @@
<Filter>imgui</Filter>
</None>
</ItemGroup>
</Project>
</Project>

33
examples/example_sdl2_sdlrenderer/main.cpp → examples/example_sdl2_sdlrenderer2/main.cpp
View File

@ -1,15 +1,18 @@
// Dear ImGui: standalone example application for SDL2 + SDL_Renderer
// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// Important to understand: SDL_Renderer is an _optional_ component of SDL. We do not recommend you use SDL_Renderer
// because it provides a rather limited API to the end-user. We provide this backend for the sake of completeness.
// 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 to understand: SDL_Renderer is an _optional_ component of SDL2.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
#include "imgui.h"
#include "imgui_impl_sdl2.h"
#include "imgui_impl_sdlrenderer.h"
#include "imgui_impl_sdlrenderer2.h"
#include <stdio.h>
#include <SDL.h>
@ -35,11 +38,16 @@ int main(int, char**)
// Create window with SDL_Renderer graphics context
SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+SDL_Renderer example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
if (window == nullptr)
{
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1;
}
SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
if (renderer == nullptr)
{
SDL_Log("Error creating SDL_Renderer!");
return 0;
return -1;
}
//SDL_RendererInfo info;
//SDL_GetRendererInfo(renderer, &info);
@ -58,7 +66,7 @@ int main(int, char**)
// Setup Platform/Renderer backends
ImGui_ImplSDL2_InitForSDLRenderer(window, renderer);
ImGui_ImplSDLRenderer_Init(renderer);
ImGui_ImplSDLRenderer2_Init(renderer);
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
@ -99,9 +107,14 @@ int main(int, char**)
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
{
SDL_Delay(10);
continue;
}
// Start the Dear ImGui frame
ImGui_ImplSDLRenderer_NewFrame();
ImGui_ImplSDLRenderer2_NewFrame();
ImGui_ImplSDL2_NewFrame();
ImGui::NewFrame();
@ -147,12 +160,12 @@ int main(int, char**)
SDL_RenderSetScale(renderer, io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
SDL_SetRenderDrawColor(renderer, (Uint8)(clear_color.x * 255), (Uint8)(clear_color.y * 255), (Uint8)(clear_color.z * 255), (Uint8)(clear_color.w * 255));
SDL_RenderClear(renderer);
ImGui_ImplSDLRenderer_RenderDrawData(ImGui::GetDrawData());
ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData(), renderer);
SDL_RenderPresent(renderer);
}
// Cleanup
ImGui_ImplSDLRenderer_Shutdown();
ImGui_ImplSDLRenderer2_Shutdown();
ImGui_ImplSDL2_Shutdown();
ImGui::DestroyContext();

128
examples/example_sdl2_vulkan/main.cpp
View File

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for SDL2 + Vulkan
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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.
@ -16,12 +20,16 @@
#include <stdlib.h> // abort
#include <SDL.h>
#include <SDL_vulkan.h>
#include <vulkan/vulkan.h>
//#include <vulkan/vulkan_beta.h>
//#define IMGUI_UNLIMITED_FRAME_RATE
// Volk headers
#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
#define VOLK_IMPLEMENTATION
#include <volk.h>
#endif
//#define APP_USE_UNLIMITED_FRAME_RATE
#ifdef _DEBUG
#define IMGUI_VULKAN_DEBUG_REPORT
#define APP_USE_VULKAN_DEBUG_REPORT
#endif
// Data
@ -48,14 +56,14 @@ static void check_vk_result(VkResult err)
abort();
}
#ifdef IMGUI_VULKAN_DEBUG_REPORT
#ifdef APP_USE_VULKAN_DEBUG_REPORT
static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objectType, uint64_t object, size_t location, int32_t messageCode, const char* pLayerPrefix, const char* pMessage, void* pUserData)
{
(void)flags; (void)object; (void)location; (void)messageCode; (void)pUserData; (void)pLayerPrefix; // Unused arguments
fprintf(stderr, "[vulkan] Debug report from ObjectType: %i\nMessage: %s\n\n", objectType, pMessage);
return VK_FALSE;
}
#endif // IMGUI_VULKAN_DEBUG_REPORT
#endif // APP_USE_VULKAN_DEBUG_REPORT
static bool IsExtensionAvailable(const ImVector<VkExtensionProperties>& properties, const char* extension)
{
@ -97,6 +105,9 @@ static VkPhysicalDevice SetupVulkan_SelectPhysicalDevice()
static void SetupVulkan(ImVector<const char*> instance_extensions)
{
VkResult err;
#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
volkInitialize();
#endif
// Create Vulkan Instance
{
@ -123,7 +134,7 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
#endif
// Enabling validation layers
#ifdef IMGUI_VULKAN_DEBUG_REPORT
#ifdef APP_USE_VULKAN_DEBUG_REPORT
const char* layers[] = { "VK_LAYER_KHRONOS_validation" };
create_info.enabledLayerCount = 1;
create_info.ppEnabledLayerNames = layers;
@ -135,17 +146,20 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
create_info.ppEnabledExtensionNames = instance_extensions.Data;
err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
check_vk_result(err);
#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
volkLoadInstance(g_Instance);
#endif
// Setup the debug report callback
#ifdef IMGUI_VULKAN_DEBUG_REPORT
auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
IM_ASSERT(vkCreateDebugReportCallbackEXT != nullptr);
#ifdef APP_USE_VULKAN_DEBUG_REPORT
auto f_vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
IM_ASSERT(f_vkCreateDebugReportCallbackEXT != nullptr);
VkDebugReportCallbackCreateInfoEXT debug_report_ci = {};
debug_report_ci.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT;
debug_report_ci.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
debug_report_ci.pfnCallback = debug_report;
debug_report_ci.pUserData = nullptr;
err = vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
err = f_vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
check_vk_result(err);
#endif
}
@ -203,25 +217,17 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
}
// Create Descriptor Pool
// The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that)
// If you wish to load e.g. additional textures you may need to alter pools sizes.
{
VkDescriptorPoolSize pool_sizes[] =
{
{ VK_DESCRIPTOR_TYPE_SAMPLER, 1000 },
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1000 },
{ VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, 1000 },
{ VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, 1000 },
{ VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER, 1000 },
{ VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER, 1000 },
{ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1000 },
{ VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, 1000 },
{ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC, 1000 },
{ VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC, 1000 },
{ VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT, 1000 }
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 },
};
VkDescriptorPoolCreateInfo pool_info = {};
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
pool_info.maxSets = 1000 * IM_ARRAYSIZE(pool_sizes);
pool_info.maxSets = 1;
pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
pool_info.pPoolSizes = pool_sizes;
err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);
@ -250,7 +256,7 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
// Select Present Mode
#ifdef IMGUI_UNLIMITED_FRAME_RATE
#ifdef APP_UNLIMITED_FRAME_RATE
VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR };
#else
VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_FIFO_KHR };
@ -267,11 +273,11 @@ static void CleanupVulkan()
{
vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator);
#ifdef IMGUI_VULKAN_DEBUG_REPORT
#ifdef APP_USE_VULKAN_DEBUG_REPORT
// Remove the debug report callback
auto vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator);
#endif // IMGUI_VULKAN_DEBUG_REPORT
auto f_vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
f_vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator);
#endif // APP_USE_VULKAN_DEBUG_REPORT
vkDestroyDevice(g_Device, g_Allocator);
vkDestroyInstance(g_Instance, g_Allocator);
@ -368,7 +374,7 @@ static void FramePresent(ImGui_ImplVulkanH_Window* wd)
return;
}
check_vk_result(err);
wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->ImageCount; // Now we can use the next set of semaphores
wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->SemaphoreCount; // Now we can use the next set of semaphores
}
// Main code
@ -389,6 +395,11 @@ int main(int, char**)
// Create window with Vulkan graphics context
SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+Vulkan example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
if (window == nullptr)
{
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1;
}
ImVector<const char*> extensions;
uint32_t extensions_count = 0;
@ -433,13 +444,14 @@ int main(int, char**)
init_info.Queue = g_Queue;
init_info.PipelineCache = g_PipelineCache;
init_info.DescriptorPool = g_DescriptorPool;
init_info.RenderPass = wd->RenderPass;
init_info.Subpass = 0;
init_info.MinImageCount = g_MinImageCount;
init_info.ImageCount = wd->ImageCount;
init_info.MSAASamples = VK_SAMPLE_COUNT_1_BIT;
init_info.Allocator = g_Allocator;
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
ImGui_ImplVulkan_Init(&init_info);
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
@ -457,36 +469,6 @@ int main(int, char**)
//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
//IM_ASSERT(font != nullptr);
// Upload Fonts
{
// Use any command queue
VkCommandPool command_pool = wd->Frames[wd->FrameIndex].CommandPool;
VkCommandBuffer command_buffer = wd->Frames[wd->FrameIndex].CommandBuffer;
err = vkResetCommandPool(g_Device, command_pool, 0);
check_vk_result(err);
VkCommandBufferBeginInfo begin_info = {};
begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
begin_info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
err = vkBeginCommandBuffer(command_buffer, &begin_info);
check_vk_result(err);
ImGui_ImplVulkan_CreateFontsTexture(command_buffer);
VkSubmitInfo end_info = {};
end_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
end_info.commandBufferCount = 1;
end_info.pCommandBuffers = &command_buffer;
err = vkEndCommandBuffer(command_buffer);
check_vk_result(err);
err = vkQueueSubmit(g_Queue, 1, &end_info, VK_NULL_HANDLE);
check_vk_result(err);
err = vkDeviceWaitIdle(g_Device);
check_vk_result(err);
ImGui_ImplVulkan_DestroyFontUploadObjects();
}
// Our state
bool show_demo_window = true;
bool show_another_window = false;
@ -510,19 +492,21 @@ int main(int, char**)
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
{
SDL_Delay(10);
continue;
}
// Resize swap chain?
if (g_SwapChainRebuild)
int fb_width, fb_height;
SDL_GetWindowSize(window, &fb_width, &fb_height);
if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height))
{
int width, height;
SDL_GetWindowSize(window, &width, &height);
if (width > 0 && height > 0)
{
ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, width, height, g_MinImageCount);
g_MainWindowData.FrameIndex = 0;
g_SwapChainRebuild = false;
}
ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount);
g_MainWindowData.FrameIndex = 0;
g_SwapChainRebuild = false;
}
// Start the Dear ImGui frame

6
examples/example_sdl3_opengl3/Makefile
View File

@ -37,9 +37,9 @@ LIBS =
ifeq ($(UNAME_S), Linux) #LINUX
ECHO_MESSAGE = "Linux"
LIBS += $(LINUX_GL_LIBS) -ldl `sdl3-config --libs`
LIBS += $(LINUX_GL_LIBS) -ldl `pkg-config sdl3 --libs`
CXXFLAGS += `sdl3-config --cflags`
CXXFLAGS += `pkg-config sdl3 --cflags`
CFLAGS = $(CXXFLAGS)
endif
@ -48,7 +48,7 @@ ifeq ($(UNAME_S), Darwin) #APPLE
LIBS += -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo `sdl3-config --libs`
LIBS += -L/usr/local/lib -L/opt/local/lib
CXXFLAGS += `sdl3-config --cflags`
CXXFLAGS += `pkg-config sdl3 --cflags`
CXXFLAGS += -I/usr/local/include -I/opt/local/include
CFLAGS = $(CXXFLAGS)
endif

4
examples/example_sdl3_opengl3/Makefile.emscripten
View File

@ -1,3 +1,7 @@
# IMPORTANT: SDL3 IS IN DEVELOPMENT, AS OF 2023-05-30, EMSCRIPTEN DOESN'T SUPPORT SDL3 YET.
# WE ARE LEAVING THIS MAKEFILE AROUND FOR THE DAY IT WILL SUPPORT IT.
#
# Makefile to use with SDL+emscripten
# See https://emscripten.org/docs/getting_started/downloads.html

25
examples/example_sdl3_opengl3/README.md
View File

@ -9,11 +9,11 @@ Use the provided project file (.vcxproj). Add to solution (imgui_examples.sln) i
Use build_win32.bat or directly:
```
set SDL2_DIR=path_to_your_sdl3_folder
cl /Zi /MD /utf-8 /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl3.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl3_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL3.lib opengl32.lib /subsystem:console
set SDL3_DIR=path_to_your_sdl3_folder
cl /Zi /MD /utf-8 /I.. /I..\.. /I%SDL3_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl3.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl3_opengl3.exe /FoDebug/ /link /libpath:%SDL3_DIR%\lib\x86 SDL3.lib opengl32.lib /subsystem:console
# ^^ include paths ^^ source files ^^ output exe ^^ output dir ^^ libraries
# or for 64-bit:
cl /Zi /MD /utf-8 /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl3.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl3_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL3.lib SDL2mainopengl32.lib /subsystem:console
cl /Zi /MD /utf-8 /I.. /I..\.. /I%SDL3_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl3.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl3_opengl3.exe /FoDebug/ /link /libpath:%SDL3_DIR%\lib\x64 SDL3.lib SDL2mainopengl32.lib /subsystem:console
```
## Linux and similar Unixes
@ -37,21 +37,4 @@ c++ `sdl3-config --cflags` -I .. -I ../.. -I ../../backends
## Emscripten
**Building**
You need to install Emscripten from https://emscripten.org/docs/getting_started/downloads.html, and have the environment variables set, as described in https://emscripten.org/docs/getting_started/downloads.html#installation-instructions
- Depending on your configuration, in Windows you may need to run `emsdk/emsdk_env.bat` in your console to access the Emscripten command-line tools.
- You may also refer to our [Continuous Integration setup](https://github.com/ocornut/imgui/tree/master/.github/workflows) for Emscripten setup.
- Then build using `make -f Makefile.emscripten` while in the current directory.
**Running an Emscripten project**
To run on a local machine:
- `make -f Makefile.emscripten serve` will use Python3 to spawn a local webserver, you can then browse http://localhost:8000 to access your build.
- Otherwise, generally you will need a local webserver. Quoting [https://emscripten.org/docs/getting_started](https://emscripten.org/docs/getting_started/Tutorial.html#generating-html):<br>
_"Unfortunately several browsers (including Chrome, Safari, and Internet Explorer) do not support file:// [XHR](https://emscripten.org/docs/site/glossary.html#term-xhr) requests, and can’t load extra files needed by the HTML (like a .wasm file, or packaged file data as mentioned lower down). For these browsers you’ll need to serve the files using a [local webserver](https://emscripten.org/docs/getting_started/FAQ.html#faq-local-webserver) and then open http://localhost:8000/hello.html."_
- Emscripten SDK has a handy `emrun` command: `emrun web/index.html --browser firefox` which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
- You may use Python 3 builtin webserver: `python -m http.server -d web` (this is what `make serve` uses).
- You may use Python 2 builtin webserver: `cd web && python -m SimpleHTTPServer`.
- If you are accessing the files over a network, certain browsers, such as Firefox, will restrict Gamepad API access to secure contexts only (e.g. https only).
As of 2023-05-30 Emscripten doesn't support SDL3 yet.

24
examples/example_sdl3_opengl3/main.cpp
View File

@ -1,7 +1,11 @@
// Dear ImGui: standalone example application for SDL3 + OpenGL
// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_sdl3.h"
@ -14,7 +18,7 @@
#include <SDL3/SDL_opengl.h>
#endif
// This example can also compile and run with Emscripten! See 'Makefile.emscripten' for details.
// This example doesn't compile with Emscripten yet! Awaiting SDL3 support.
#ifdef __EMSCRIPTEN__
#include "../libs/emscripten/emscripten_mainloop_stub.h"
#endif
@ -23,7 +27,7 @@
int main(int, char**)
{
// Setup SDL
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMEPAD) != 0)
if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMEPAD))
{
printf("Error: SDL_Init(): %s\n", SDL_GetError());
return -1;
@ -53,14 +57,11 @@ int main(int, char**)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
#endif
// Enable native IME.
SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");
// Create window with graphics context
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN);
Uint32 window_flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN;
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+OpenGL3 example", 1280, 720, window_flags);
if (window == nullptr)
{
@ -135,6 +136,11 @@ int main(int, char**)
if (event.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
{
SDL_Delay(10);
continue;
}
// Start the Dear ImGui frame
ImGui_ImplOpenGL3_NewFrame();
@ -195,7 +201,7 @@ int main(int, char**)
ImGui_ImplSDL3_Shutdown();
ImGui::DestroyContext();
SDL_GL_DeleteContext(gl_context);
SDL_GL_DestroyContext(gl_context);
SDL_DestroyWindow(window);
SDL_Quit();

73
examples/example_sdl3_sdlrenderer3/Makefile Normal file
View File

@ -0,0 +1,73 @@
#
# Cross Platform Makefile
# Compatible with MSYS2/MINGW, Ubuntu 14.04.1 and Mac OS X
#
# You will need SDL3 (http://www.libsdl.org) which is still unreleased/unpackaged.
#CXX = g++
#CXX = clang++
EXE = example_sdl3_sdlrenderer3
IMGUI_DIR = ../..
SOURCES = main.cpp
SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl3.cpp $(IMGUI_DIR)/backends/imgui_impl_sdlrenderer3.cpp
OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
UNAME_S := $(shell uname -s)
LINUX_GL_LIBS = -lGL
CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
CXXFLAGS += -g -Wall -Wformat
LIBS =
##---------------------------------------------------------------------
## BUILD FLAGS PER PLATFORM
##---------------------------------------------------------------------
ifeq ($(UNAME_S), Linux) #LINUX
ECHO_MESSAGE = "Linux"
LIBS += -ldl `pkg-config sdl3 --libs`
CXXFLAGS += `pkg-config sdl3 --cflags`
CFLAGS = $(CXXFLAGS)
endif
ifeq ($(UNAME_S), Darwin) #APPLE
ECHO_MESSAGE = "Mac OS X"
LIBS += -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo `sdl3-config --libs`
LIBS += -L/usr/local/lib -L/opt/local/lib
CXXFLAGS += `pkg-config sdl3 --cflags`
CXXFLAGS += -I/usr/local/include -I/opt/local/include
CFLAGS = $(CXXFLAGS)
endif
ifeq ($(OS), Windows_NT)
ECHO_MESSAGE = "MinGW"
LIBS += -lgdi32 -lopengl32 -limm32 `pkg-config --static --libs sdl3`
CXXFLAGS += `pkg-config --cflags sdl3`
CFLAGS = $(CXXFLAGS)
endif
##---------------------------------------------------------------------
## BUILD RULES
##---------------------------------------------------------------------
%.o:%.cpp
$(CXX) $(CXXFLAGS) -c -o $@ $<
%.o:$(IMGUI_DIR)/%.cpp
$(CXX) $(CXXFLAGS) -c -o $@ $<
%.o:$(IMGUI_DIR)/backends/%.cpp
$(CXX) $(CXXFLAGS) -c -o $@ $<
all: $(EXE)
@echo Build complete for $(ECHO_MESSAGE)
$(EXE): $(OBJS)
$(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS)
clean:
rm -f $(EXE) $(OBJS)

8
examples/example_sdl3_sdlrenderer3/build_win32.bat Normal file
View File

@ -0,0 +1,8 @@
@REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
@set OUT_DIR=Debug
@set OUT_EXE=example_sdl3_sdlrenderer3
@set INCLUDES=/I..\.. /I..\..\backends /I%SDL3_DIR%\include
@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl3.cpp ..\..\backends\imgui_impl_sdlrenderer3.cpp ..\..\imgui*.cpp
@set LIBS=/LIBPATH:%SDL3_DIR%\lib\x86 SDL3.lib
mkdir %OUT_DIR%
cl /nologo /Zi /MD /utf-8 %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

186
examples/example_sdl3_sdlrenderer3/example_sdl3_sdlrenderer3.vcxproj Normal file
View File

@ -0,0 +1,186 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Debug|x64">
<Configuration>Debug</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|x64">
<Configuration>Release</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{C0290D21-3AD2-4A35-ABBC-A2F5F48326DA}</ProjectGuid>
<RootNamespace>example_sdl3_opengl3</RootNamespace>
<WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<CharacterSet>MultiByte</CharacterSet>
<PlatformToolset>v140</PlatformToolset>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<CharacterSet>MultiByte</CharacterSet>
<PlatformToolset>v140</PlatformToolset>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>MultiByte</CharacterSet>
<PlatformToolset>v140</PlatformToolset>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>MultiByte</CharacterSet>
<PlatformToolset>v140</PlatformToolset>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<OutDir>$(ProjectDir)$(Configuration)\</OutDir>
<IntDir>$(ProjectDir)$(Configuration)\</IntDir>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<WarningLevel>Level4</WarningLevel>
<Optimization>Disabled</Optimization>
<AdditionalIncludeDirectories>..\..;..\..\backends;%SDL3_DIR%\include;$(VcpkgCurrentInstalledDir)include\SDL3;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalLibraryDirectories>%SDL3_DIR%\lib\x86;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>opengl32.lib;SDL3.lib;%(AdditionalDependencies)</AdditionalDependencies>
<SubSystem>Console</SubSystem>
<IgnoreSpecificDefaultLibraries>msvcrt.lib</IgnoreSpecificDefaultLibraries>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<ClCompile>
<WarningLevel>Level4</WarningLevel>
<Optimization>Disabled</Optimization>
<AdditionalIncludeDirectories>..\..;..\..\backends;%SDL3_DIR%\include;$(VcpkgCurrentInstalledDir)include\SDL3;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
</ClCompile>
<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalLibraryDirectories>%SDL3_DIR%\lib\x64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>opengl32.lib;SDL3.lib;%(AdditionalDependencies)</AdditionalDependencies>
<SubSystem>Console</SubSystem>
<IgnoreSpecificDefaultLibraries>msvcrt.lib</IgnoreSpecificDefaultLibraries>
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<ClCompile>
<WarningLevel>Level4</WarningLevel>
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<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<AdditionalIncludeDirectories>..\..;..\..\backends;%SDL3_DIR%\include;$(VcpkgCurrentInstalledDir)include\SDL3;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
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<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<AdditionalLibraryDirectories>%SDL3_DIR%\lib\x86;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>opengl32.lib;SDL3.lib;%(AdditionalDependencies)</AdditionalDependencies>
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<Link>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<AdditionalLibraryDirectories>%SDL3_DIR%\lib\x64;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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<ClCompile Include="..\..\backends\imgui_impl_sdlrenderer3.cpp" />
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<ClCompile Include="..\..\imgui_demo.cpp" />
<ClCompile Include="..\..\imgui_draw.cpp" />
<ClCompile Include="..\..\imgui_tables.cpp" />
<ClCompile Include="..\..\imgui_widgets.cpp" />
<ClCompile Include="..\..\backends\imgui_impl_sdl3.cpp" />
<ClCompile Include="main.cpp" />
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<ClInclude Include="..\..\backends\imgui_impl_sdlrenderer3.h" />
<ClInclude Include="..\..\imconfig.h" />
<ClInclude Include="..\..\imgui.h" />
<ClInclude Include="..\..\imgui_internal.h" />
<ClInclude Include="..\..\backends\imgui_impl_sdl3.h" />
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<ItemGroup>
<None Include="..\..\misc\debuggers\imgui.natstepfilter" />
<None Include="..\..\misc\debuggers\imgui.natvis" />
<None Include="..\README.txt" />
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
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64
examples/example_sdl3_sdlrenderer3/example_sdl3_sdlrenderer3.vcxproj.filters Normal file
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@ -0,0 +1,64 @@
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup>
<Filter Include="imgui">
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184
examples/example_sdl3_sdlrenderer3/main.cpp Normal file
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@ -0,0 +1,184 @@
// Dear ImGui: standalone example application for SDL3 + SDL_Renderer
// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
// 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 to understand: SDL_Renderer is an _optional_ component of SDL3.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
#include "imgui.h"
#include "imgui_impl_sdl3.h"
#include "imgui_impl_sdlrenderer3.h"
#include <stdio.h>
#include <SDL3/SDL.h>
#if defined(IMGUI_IMPL_OPENGL_ES2)
#include <SDL3/SDL_opengles2.h>
#else
#include <SDL3/SDL_opengl.h>
#endif
// Main code
int main(int, char**)
{
// Setup SDL
if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMEPAD))
{
printf("Error: SDL_Init(): %s\n", SDL_GetError());
return -1;
}
// Create window with SDL_Renderer graphics context
Uint32 window_flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN;
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+SDL_Renderer example", 1280, 720, window_flags);
if (window == nullptr)
{
printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
return -1;
}
SDL_Renderer* renderer = SDL_CreateRenderer(window, nullptr);
SDL_SetRenderVSync(renderer, 1);
if (renderer == nullptr)
{
SDL_Log("Error: SDL_CreateRenderer(): %s\n", SDL_GetError());
return -1;
}
SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
SDL_ShowWindow(window);
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
// Setup Dear ImGui style
ImGui::StyleColorsDark();
//ImGui::StyleColorsLight();
// Setup Platform/Renderer backends
ImGui_ImplSDL3_InitForSDLRenderer(window, renderer);
ImGui_ImplSDLRenderer3_Init(renderer);
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
// - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
// - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
// - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
// - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
// - Read 'docs/FONTS.md' for more instructions and details.
// - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
// - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
//io.Fonts->AddFontDefault();
//io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
//IM_ASSERT(font != nullptr);
// Our state
bool show_demo_window = true;
bool show_another_window = false;
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
// Main loop
bool done = false;
#ifdef __EMSCRIPTEN__
// For an Emscripten build we are disabling file-system access, so let's not attempt to do a fopen() of the imgui.ini file.
// You may manually call LoadIniSettingsFromMemory() to load settings from your own storage.
io.IniFilename = nullptr;
EMSCRIPTEN_MAINLOOP_BEGIN
#else
while (!done)
#endif
{
// Poll and handle events (inputs, window resize, etc.)
// 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.
SDL_Event event;
while (SDL_PollEvent(&event))
{
ImGui_ImplSDL3_ProcessEvent(&event);
if (event.type == SDL_EVENT_QUIT)
done = true;
if (event.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED && event.window.windowID == SDL_GetWindowID(window))
done = true;
}
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
{
SDL_Delay(10);
continue;
}
// Start the Dear ImGui frame
ImGui_ImplSDLRenderer3_NewFrame();
ImGui_ImplSDL3_NewFrame();
ImGui::NewFrame();
// 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
if (show_demo_window)
ImGui::ShowDemoWindow(&show_demo_window);
// 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
{
static float f = 0.0f;
static int counter = 0;
ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it.
ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too)
ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state
ImGui::Checkbox("Another Window", &show_another_window);
ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated)
counter++;
ImGui::SameLine();
ImGui::Text("counter = %d", counter);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
ImGui::End();
}
// 3. Show another simple window.
if (show_another_window)
{
ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
ImGui::Text("Hello from another window!");
if (ImGui::Button("Close Me"))
show_another_window = false;
ImGui::End();
}
// Rendering
ImGui::Render();
//SDL_RenderSetScale(renderer, io.DisplayFramebufferScale.x, io.DisplayFramebufferScale.y);
SDL_SetRenderDrawColorFloat(renderer, clear_color.x, clear_color.y, clear_color.z, clear_color.w);
SDL_RenderClear(renderer);
ImGui_ImplSDLRenderer3_RenderDrawData(ImGui::GetDrawData(), renderer);
SDL_RenderPresent(renderer);
}
#ifdef __EMSCRIPTEN__
EMSCRIPTEN_MAINLOOP_END;
#endif
// Cleanup
ImGui_ImplSDLRenderer3_Shutdown();
ImGui_ImplSDL3_Shutdown();
ImGui::DestroyContext();
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}

24
examples/example_win32_directx10/main.cpp
View File

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for DirectX 10
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_win32.h"
@ -12,6 +16,7 @@
// Data
static ID3D10Device* g_pd3dDevice = nullptr;
static IDXGISwapChain* g_pSwapChain = nullptr;
static bool g_SwapChainOccluded = false;
static UINT g_ResizeWidth = 0, g_ResizeHeight = 0;
static ID3D10RenderTargetView* g_mainRenderTargetView = nullptr;
@ -96,6 +101,14 @@ int main(int, char**)
if (done)
break;
// Handle window being minimized or screen locked
if (g_SwapChainOccluded && g_pSwapChain->Present(0, DXGI_PRESENT_TEST) == DXGI_STATUS_OCCLUDED)
{
::Sleep(10);
continue;
}
g_SwapChainOccluded = false;
// Handle window resize (we don't resize directly in the WM_SIZE handler)
if (g_ResizeWidth != 0 && g_ResizeHeight != 0)
{
@ -154,10 +167,13 @@ int main(int, char**)
g_pd3dDevice->ClearRenderTargetView(g_mainRenderTargetView, clear_color_with_alpha);
ImGui_ImplDX10_RenderDrawData(ImGui::GetDrawData());
g_pSwapChain->Present(1, 0); // Present with vsync
//g_pSwapChain->Present(0, 0); // Present without vsync
// Present
HRESULT hr = g_pSwapChain->Present(1, 0); // Present with vsync
//HRESULT hr = g_pSwapChain->Present(0, 0); // Present without vsync
g_SwapChainOccluded = (hr == DXGI_STATUS_OCCLUDED);
}
// Cleanup
ImGui_ImplDX10_Shutdown();
ImGui_ImplWin32_Shutdown();
ImGui::DestroyContext();

23
examples/example_win32_directx11/main.cpp
View File

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for DirectX 11
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_win32.h"
@ -12,6 +16,7 @@
static ID3D11Device* g_pd3dDevice = nullptr;
static ID3D11DeviceContext* g_pd3dDeviceContext = nullptr;
static IDXGISwapChain* g_pSwapChain = nullptr;
static bool g_SwapChainOccluded = false;
static UINT g_ResizeWidth = 0, g_ResizeHeight = 0;
static ID3D11RenderTargetView* g_mainRenderTargetView = nullptr;
@ -96,6 +101,14 @@ int main(int, char**)
if (done)
break;
// Handle window being minimized or screen locked
if (g_SwapChainOccluded && g_pSwapChain->Present(0, DXGI_PRESENT_TEST) == DXGI_STATUS_OCCLUDED)
{
::Sleep(10);
continue;
}
g_SwapChainOccluded = false;
// Handle window resize (we don't resize directly in the WM_SIZE handler)
if (g_ResizeWidth != 0 && g_ResizeHeight != 0)
{
@ -154,8 +167,10 @@ int main(int, char**)
g_pd3dDeviceContext->ClearRenderTargetView(g_mainRenderTargetView, clear_color_with_alpha);
ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
g_pSwapChain->Present(1, 0); // Present with vsync
//g_pSwapChain->Present(0, 0); // Present without vsync
// Present
HRESULT hr = g_pSwapChain->Present(1, 0); // Present with vsync
//HRESULT hr = g_pSwapChain->Present(0, 0); // Present without vsync
g_SwapChainOccluded = (hr == DXGI_STATUS_OCCLUDED);
}
// Cleanup

25
examples/example_win32_directx12/main.cpp
View File

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for DirectX 12
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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: to compile on 32-bit systems, the DirectX12 backend requires code to be compiled with '#define ImTextureID ImU64'.
// This is because we need ImTextureID to carry a 64-bit value and by default ImTextureID is defined as void*.
@ -22,6 +26,8 @@
#pragma comment(lib, "dxguid.lib")
#endif
#include "imgui_internal.h"
struct FrameContext
{
ID3D12CommandAllocator* CommandAllocator;
@ -43,6 +49,7 @@ static ID3D12Fence* g_fence = nullptr;
static HANDLE g_fenceEvent = nullptr;
static UINT64 g_fenceLastSignaledValue = 0;
static IDXGISwapChain3* g_pSwapChain = nullptr;
static bool g_SwapChainOccluded = false;
static HANDLE g_hSwapChainWaitableObject = nullptr;
static ID3D12Resource* g_mainRenderTargetResource[NUM_BACK_BUFFERS] = {};
static D3D12_CPU_DESCRIPTOR_HANDLE g_mainRenderTargetDescriptor[NUM_BACK_BUFFERS] = {};
@ -133,6 +140,14 @@ int main(int, char**)
if (done)
break;
// Handle window screen locked
if (g_SwapChainOccluded && g_pSwapChain->Present(0, DXGI_PRESENT_TEST) == DXGI_STATUS_OCCLUDED)
{
::Sleep(10);
continue;
}
g_SwapChainOccluded = false;
// Start the Dear ImGui frame
ImGui_ImplDX12_NewFrame();
ImGui_ImplWin32_NewFrame();
@ -205,8 +220,10 @@ int main(int, char**)
g_pd3dCommandQueue->ExecuteCommandLists(1, (ID3D12CommandList* const*)&g_pd3dCommandList);
g_pSwapChain->Present(1, 0); // Present with vsync
//g_pSwapChain->Present(0, 0); // Present without vsync
// Present
HRESULT hr = g_pSwapChain->Present(1, 0); // Present with vsync
//HRESULT hr = g_pSwapChain->Present(0, 0); // Present without vsync
g_SwapChainOccluded = (hr == DXGI_STATUS_OCCLUDED);
UINT64 fenceValue = g_fenceLastSignaledValue + 1;
g_pd3dCommandQueue->Signal(g_fence, fenceValue);

30
examples/example_win32_directx9/main.cpp
View File

@ -1,6 +1,10 @@
// Dear ImGui: standalone example application for DirectX 9
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// 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
#include "imgui.h"
#include "imgui_impl_dx9.h"
@ -11,6 +15,7 @@
// Data
static LPDIRECT3D9 g_pD3D = nullptr;
static LPDIRECT3DDEVICE9 g_pd3dDevice = nullptr;
static bool g_DeviceLost = false;
static UINT g_ResizeWidth = 0, g_ResizeHeight = 0;
static D3DPRESENT_PARAMETERS g_d3dpp = {};
@ -94,6 +99,20 @@ int main(int, char**)
if (done)
break;
// Handle lost D3D9 device
if (g_DeviceLost)
{
HRESULT hr = g_pd3dDevice->TestCooperativeLevel();
if (hr == D3DERR_DEVICELOST)
{
::Sleep(10);
continue;
}
if (hr == D3DERR_DEVICENOTRESET)
ResetDevice();
g_DeviceLost = false;
}
// Handle window resize (we don't resize directly in the WM_SIZE handler)
if (g_ResizeWidth != 0 && g_ResizeHeight != 0)
{
@ -159,12 +178,11 @@ int main(int, char**)
g_pd3dDevice->EndScene();
}
HRESULT result = g_pd3dDevice->Present(nullptr, nullptr, nullptr, nullptr);
// Handle loss of D3D9 device
if (result == D3DERR_DEVICELOST && g_pd3dDevice->TestCooperativeLevel() == D3DERR_DEVICENOTRESET)
ResetDevice();
if (result == D3DERR_DEVICELOST)
g_DeviceLost = true;
}
// Cleanup
ImGui_ImplDX9_Shutdown();
ImGui_ImplWin32_Shutdown();
ImGui::DestroyContext();

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