33 lines
1.9 KiB
C
33 lines
1.9 KiB
C
// dear imgui: Renderer Backend for OpenGL2 (legacy OpenGL, fixed pipeline)
|
|
// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
|
|
|
|
// Implemented features:
|
|
// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture 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.
|
|
// 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
|
|
|
|
// **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
|
|
// **Prefer using the code in imgui_impl_opengl3.cpp**
|
|
// This code is mostly provided as a reference to learn how ImGui integration works, because it is shorter to read.
|
|
// If your code is using GL3+ context or any semi modern OpenGL calls, using this is likely to make everything more
|
|
// complicated, will require your code to reset every single OpenGL attributes to their initial state, and might
|
|
// confuse your GPU driver.
|
|
// The GL2 code is unable to reset attributes or even call e.g. "glUseProgram(0)" because they don't exist in that API.
|
|
|
|
#pragma once
|
|
#include "imgui.h" // IMGUI_IMPL_API
|
|
|
|
IMGUI_IMPL_API bool ImGui_ImplOpenGL2_Init();
|
|
IMGUI_IMPL_API void ImGui_ImplOpenGL2_Shutdown();
|
|
IMGUI_IMPL_API void ImGui_ImplOpenGL2_NewFrame();
|
|
IMGUI_IMPL_API void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data);
|
|
|
|
// Called by Init/NewFrame/Shutdown
|
|
IMGUI_IMPL_API bool ImGui_ImplOpenGL2_CreateFontsTexture();
|
|
IMGUI_IMPL_API void ImGui_ImplOpenGL2_DestroyFontsTexture();
|
|
IMGUI_IMPL_API bool ImGui_ImplOpenGL2_CreateDeviceObjects();
|
|
IMGUI_IMPL_API void ImGui_ImplOpenGL2_DestroyDeviceObjects();
|