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| #include <stdio.h> #include <SDL2/SDL.h> int WinMain() { int quit = 1; SDL_Window *window = NULL; SDL_Renderer *renderer = NULL; SDL_Texture *sdlTexture = NULL; SDL_Event event; SDL_Rect rect; rect.w = 50; rect.h = 50;
SDL_Init(SDL_INIT_VIDEO);
window = SDL_CreateWindow("My First Window", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
if (!window) { return -1; } renderer = SDL_CreateRenderer(window, -1, 0); if (!renderer) { return -1; }
sdlTexture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_TARGET, 640, 480);
if (!sdlTexture) { return -1; }
while (quit) { SDL_PollEvent(&event); switch (event.type) { case SDL_QUIT: SDL_Log("quit"); quit = 0; break; default: SDL_Log("event type:%d", event.type); } rect.x = rand() % 600; rect.y = rand() % 400;
SDL_SetRenderTarget(renderer, sdlTexture); SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0); SDL_RenderClear(renderer);
SDL_RenderDrawRect(renderer, &rect); SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255); SDL_RenderFillRect(renderer, &rect);
SDL_SetRenderTarget(renderer, NULL); SDL_RenderCopy(renderer, sdlTexture, NULL, NULL);
SDL_RenderPresent(renderer); }
SDL_DestroyTexture(sdlTexture); SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return 0; }
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