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c6cab1f352
This is (kind of) an OpenGL-only function, which should be avoided when SDL2 isn't using OpenGL. The only alternative that is recommended is SDL_GetRendererOutputSize, which limits this fix to the SDL_Renderer backend. Still, I think it's better than nothing. I say that SDL_GL_GetDrawableSize is "kind of" OpenGL-only because it does technically work even when SDL2 isn't using OpenGL. It's just that it becomes a shim to SDL_GetWindowSize, which is not suitable for high-DPI usage because it reflects the size of the window in screen coordinates, not actual pixels, so it really should be avoided when not using OpenGL.
37 lines
2.3 KiB
C
37 lines
2.3 KiB
C
// dear imgui: Platform Backend for SDL2
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// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
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// (Info: SDL2 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
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// Implemented features:
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// [X] Platform: Clipboard support.
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// [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
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// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
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// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
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// Missing features:
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// [ ] Platform: SDL2 handling of IME under Windows appears to be broken and it explicitly disable the regular Windows IME. You can restore Windows IME by compiling SDL with SDL_DISABLE_WINDOWS_IME.
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// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
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// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
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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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#pragma once
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#include "imgui.h" // IMGUI_IMPL_API
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struct SDL_Window;
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struct SDL_Renderer;
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typedef union SDL_Event SDL_Event;
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IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
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IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForVulkan(SDL_Window* window);
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IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForD3D(SDL_Window* window);
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IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForMetal(SDL_Window* window);
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IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer);
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IMGUI_IMPL_API void ImGui_ImplSDL2_Shutdown();
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IMGUI_IMPL_API void ImGui_ImplSDL2_NewFrame();
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IMGUI_IMPL_API bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event);
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#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
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static inline void ImGui_ImplSDL2_NewFrame(SDL_Window*) { ImGui_ImplSDL2_NewFrame(); } // 1.84: removed unnecessary parameter
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#endif
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