Created
April 18, 2017 22:10
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| #include <SDL.h> | |
| #include <windows.h> | |
| #include <cstdint> | |
| void Win32_DEBUG_DrawScreenBuffer(void* pixels, int width, int height, int pitch) { | |
| uint8_t* row = reinterpret_cast<uint8_t*>(pixels); | |
| for (int y = 0; y < height; ++y) { | |
| uint32_t* pixel = reinterpret_cast<uint32_t*>(row); | |
| for (int x = 0; x < width; ++x) { | |
| uint8_t blue = static_cast<uint8_t>(x); | |
| uint8_t green = static_cast<uint8_t>(y); | |
| *pixel++ = (green << 16) | blue; | |
| } | |
| row += pitch; | |
| } | |
| } | |
| int CALLBACK WinMain(HINSTANCE Instance, HINSTANCE PrevInstance, LPSTR CommandLine, int ShowCode) { | |
| SDL_Window* window; | |
| SDL_Surface* screen; | |
| if (SDL_Init(SDL_INIT_EVERYTHING) != 0) { | |
| return 1; | |
| } | |
| window = SDL_CreateWindow("An SDL2 window", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, | |
| 1280, 720, SDL_WINDOW_OPENGL); | |
| if (!window) { | |
| return 1; | |
| } | |
| screen = SDL_GetWindowSurface(window); | |
| if (!screen) { | |
| return 1; | |
| } | |
| bool isRunning = true; | |
| while (isRunning) { | |
| SDL_Event e; | |
| while (SDL_PollEvent(&e)) { | |
| if (e.type == SDL_QUIT) { | |
| isRunning = false; | |
| } | |
| } | |
| Win32_DEBUG_DrawScreenBuffer(screen->pixels, screen->w, screen->h, screen->pitch); | |
| SDL_UpdateWindowSurface(window); | |
| } | |
| SDL_DestroyWindow(window); | |
| SDL_Quit(); | |
| return 0; | |
| } |
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