From 853bbb3752a5fa2f58ef456ffb6e3a552e13cb11 Mon Sep 17 00:00:00 2001 From: Aldrik Ramaekers Date: Sun, 3 Aug 2025 19:22:36 +0200 Subject: initial commit --- imgui-1.92.1/backends/imgui_impl_opengl3.h | 68 ++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 imgui-1.92.1/backends/imgui_impl_opengl3.h (limited to 'imgui-1.92.1/backends/imgui_impl_opengl3.h') diff --git a/imgui-1.92.1/backends/imgui_impl_opengl3.h b/imgui-1.92.1/backends/imgui_impl_opengl3.h new file mode 100644 index 0000000..b72b5c8 --- /dev/null +++ b/imgui-1.92.1/backends/imgui_impl_opengl3.h @@ -0,0 +1,68 @@ +// dear imgui: Renderer Backend for modern OpenGL with shaders / programmatic pipeline +// - Desktop GL: 2.x 3.x 4.x +// - Embedded GL: ES 2.0 (WebGL 1.0), ES 3.0 (WebGL 2.0) +// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..) + +// Implemented features: +// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef! +// [x] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset) [Desktop OpenGL only!] +// [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures). + +// About WebGL/ES: +// - You need to '#define IMGUI_IMPL_OPENGL_ES2' or '#define IMGUI_IMPL_OPENGL_ES3' to use WebGL or OpenGL ES. +// - This is done automatically on iOS, Android and Emscripten targets. +// - For other targets, the define needs to be visible from the imgui_impl_opengl3.cpp compilation unit. If unsure, define globally or in imconfig.h. + +// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this. +// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need. +// Learn about Dear ImGui: +// - FAQ https://dearimgui.com/faq +// - Getting Started https://dearimgui.com/getting-started +// - Documentation https://dearimgui.com/docs (same as your local docs/ folder). +// - Introduction, links and more at the top of imgui.cpp + +// About GLSL version: +// The 'glsl_version' initialization parameter should be nullptr (default) or a "#version XXX" string. +// On computer platform the GLSL version default to "#version 130". On OpenGL ES 3 platform it defaults to "#version 300 es" +// Only override if your GL version doesn't handle this GLSL version. See GLSL version table at the top of imgui_impl_opengl3.cpp. + +#pragma once +#include "imgui.h" // IMGUI_IMPL_API +#ifndef IMGUI_DISABLE + +// Follow "Getting Started" link and check examples/ folder to learn about using backends! +IMGUI_IMPL_API bool ImGui_ImplOpenGL3_Init(const char* glsl_version = nullptr); +IMGUI_IMPL_API void ImGui_ImplOpenGL3_Shutdown(); +IMGUI_IMPL_API void ImGui_ImplOpenGL3_NewFrame(); +IMGUI_IMPL_API void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data); + +// (Optional) Called by Init/NewFrame/Shutdown +IMGUI_IMPL_API bool ImGui_ImplOpenGL3_CreateDeviceObjects(); +IMGUI_IMPL_API void ImGui_ImplOpenGL3_DestroyDeviceObjects(); + +// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually. +IMGUI_IMPL_API void ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex); + +// Configuration flags to add in your imconfig file: +//#define IMGUI_IMPL_OPENGL_ES2 // Enable ES 2 (Auto-detected on Emscripten) +//#define IMGUI_IMPL_OPENGL_ES3 // Enable ES 3 (Auto-detected on iOS/Android) + +// You can explicitly select GLES2 or GLES3 API by using one of the '#define IMGUI_IMPL_OPENGL_LOADER_XXX' in imconfig.h or compiler command-line. +#if !defined(IMGUI_IMPL_OPENGL_ES2) \ + && !defined(IMGUI_IMPL_OPENGL_ES3) + +// Try to detect GLES on matching platforms +#if defined(__APPLE__) +#include +#endif +#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV)) || (defined(__ANDROID__)) +#define IMGUI_IMPL_OPENGL_ES3 // iOS, Android -> GL ES 3, "#version 300 es" +#elif defined(__EMSCRIPTEN__) || defined(__amigaos4__) +#define IMGUI_IMPL_OPENGL_ES2 // Emscripten -> GL ES 2, "#version 100" +#else +// Otherwise imgui_impl_opengl3_loader.h will be used. +#endif + +#endif + +#endif // #ifndef IMGUI_DISABLE -- cgit v1.2.3-70-g09d2