From d43508ba4843801cbbf1f42a27af260d4eef5701 Mon Sep 17 00:00:00 2001 From: hnOsmium0001 Date: Sun, 17 Apr 2022 20:08:57 -0700 Subject: Initial work on sprites and texture system --- .../imgui/source/backends/imgui_impl_opengl2.h | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 3rdparty/imgui/source/backends/imgui_impl_opengl2.h (limited to '3rdparty/imgui/source/backends/imgui_impl_opengl2.h') diff --git a/3rdparty/imgui/source/backends/imgui_impl_opengl2.h b/3rdparty/imgui/source/backends/imgui_impl_opengl2.h new file mode 100644 index 0000000..d00d27f --- /dev/null +++ b/3rdparty/imgui/source/backends/imgui_impl_opengl2.h @@ -0,0 +1,32 @@ +// 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(); -- cgit v1.2.3-70-g09d2