77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
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#include <imgui.h>
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#include <backends/imgui_impl_sdl.h>
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#include <backends/imgui_impl_sdlrenderer.h>
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#include <SDL.h>
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#include "dp_common.h"
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void dp_sdl_fatal(const char *const msg)
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{
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log_fatal("%s: %s", msg, SDL_GetError());
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abort();
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}
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int main(int argc, char *argv[])
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{
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(void) argc;
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(void) argv;
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if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER))
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dp_sdl_fatal("SDL_Init");
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#ifdef SDL_HINT_IME_SHOW_UI
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SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");
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#endif
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const auto windowFlags = SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI;
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auto window = SDL_CreateWindow("doompanning imgui demo", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, windowFlags);
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if (!window)
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dp_sdl_fatal("SDL_CreateWindow");
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auto renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
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if (!renderer)
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dp_sdl_fatal("SDL_CreateRenderer");
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IMGUI_CHECKVERSION();
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ImGui::CreateContext();
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ImGui::StyleColorsDark();
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ImGui_ImplSDL2_InitForSDLRenderer(window, renderer);
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ImGui_ImplSDLRenderer_Init(renderer);
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bool show_demo_window = true;
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ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
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bool done = false;
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while (!done)
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{
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SDL_Event event;
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while (SDL_PollEvent(&event))
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{
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ImGui_ImplSDL2_ProcessEvent(&event);
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if (event.type == SDL_QUIT)
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done = true;
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if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window))
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done = true;
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}
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// Start the Dear ImGui frame
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ImGui_ImplSDLRenderer_NewFrame();
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ImGui_ImplSDL2_NewFrame();
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ImGui::NewFrame();
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if (show_demo_window)
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ImGui::ShowDemoWindow(&show_demo_window);
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// Rendering
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ImGui::Render();
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SDL_SetRenderDrawColor(renderer, (Uint8)(clear_color.x * 255), (Uint8)(clear_color.y * 255), (Uint8)(clear_color.z * 255), (Uint8)(clear_color.w * 255));
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SDL_RenderClear(renderer);
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ImGui_ImplSDLRenderer_RenderDrawData(ImGui::GetDrawData());
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SDL_RenderPresent(renderer);
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}
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return 0;
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}
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