| // 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) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset). | |
| // [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'. | |
| // Missing features: | |
| // [ ] Renderer: Multi-viewport support (multiple windows). | |
| // 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 | |
| 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(); | |
| // [BETA] Selected render state data shared with callbacks. | |
| // This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplSDLRenderer2_RenderDrawData() call. | |
| // (Please open an issue if you feel you need access to more data) | |
| struct ImGui_ImplSDLRenderer2_RenderState | |
| { | |
| SDL_Renderer* Renderer; | |
| }; | |