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32 lines
1.8 KiB
C
32 lines
1.8 KiB
C
// dear imgui: Renderer Backend for OpenGL2 (legacy OpenGL, fixed pipeline)
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// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
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// Implemented features:
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// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
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// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
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// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
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// Read online: https://github.com/ocornut/imgui/tree/master/docs
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// **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
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// **Prefer using the code in imgui_impl_opengl3.cpp**
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// This code is mostly provided as a reference to learn how ImGui integration works, because it is shorter to read.
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// If your code is using GL3+ context or any semi modern OpenGL calls, using this is likely to make everything more
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// complicated, will require your code to reset every single OpenGL attributes to their initial state, and might
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// confuse your GPU driver.
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// The GL2 code is unable to reset attributes or even call e.g. "glUseProgram(0)" because they don't exist in that API.
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#pragma once
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#include "imgui.h" // IMGUI_IMPL_API
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IMGUI_IMPL_API bool ImGui_ImplOpenGL2_Init();
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IMGUI_IMPL_API void ImGui_ImplOpenGL2_Shutdown();
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IMGUI_IMPL_API void ImGui_ImplOpenGL2_NewFrame();
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IMGUI_IMPL_API void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data);
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// Called by Init/NewFrame/Shutdown
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IMGUI_IMPL_API bool ImGui_ImplOpenGL2_CreateFontsTexture();
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IMGUI_IMPL_API void ImGui_ImplOpenGL2_DestroyFontsTexture();
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IMGUI_IMPL_API bool ImGui_ImplOpenGL2_CreateDeviceObjects();
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IMGUI_IMPL_API void ImGui_ImplOpenGL2_DestroyDeviceObjects();
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