62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
#include "Framebuffer.h"
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#include <SDL2/SDL_error.h>
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#include <SDL2/SDL_events.h>
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#include <SDL2/SDL_video.h>
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#include <cstdint>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <SDL2/SDL.h>
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static constexpr size_t window_width { 1280 };
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static constexpr size_t window_height { 800 };
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static constexpr size_t window_bpp { 32 };
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SDL_Renderer* g_renderer { nullptr };
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SDL_Texture* g_texture { nullptr };
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SDL_Window* g_window { nullptr };
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Framebuffer open_framebuffer()
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{
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if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS) == -1)
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{
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fprintf(stderr, "Could not initialize SDL: %s\n", SDL_GetError());
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exit(1);
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}
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g_window = SDL_CreateWindow("banan gui", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, window_width, window_height, SDL_WINDOW_SHOWN);
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if (g_window == nullptr)
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{
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fprintf(stderr, "Could not create SDL window: %s\n", SDL_GetError());
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exit(1);
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}
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g_renderer = SDL_CreateRenderer(g_window, -1, SDL_RENDERER_ACCELERATED);
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if (g_renderer == nullptr)
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{
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fprintf(stderr, "Could not get SDL renderer: %s\n", SDL_GetError());
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exit(1);
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}
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g_texture = SDL_CreateTexture(g_renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, window_width, window_height);
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if (g_texture == nullptr)
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{
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fprintf(stderr, "Could not get SDL texture: %s\n", SDL_GetError());
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exit(1);
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}
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uint32_t* pixels = new uint32_t[window_width * window_height];
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memset(pixels, 0, window_width * window_height * 4);
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Framebuffer framebuffer;
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framebuffer.pixels = pixels;
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framebuffer.width = window_width;
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framebuffer.height = window_height;
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framebuffer.bpp = window_bpp;
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return framebuffer;
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}
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