44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <SDL2/SDL.h>
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const int SCREEN_WIDTH = 512;
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const int SCREEN_HEIGHT = 342;
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SDL_Window* win = NULL;
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SDL_Surface* surf = NULL;
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SDL_Surface* drwsurf=NULL;
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void sdlDie() {
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printf("SDL could not initialize! SDL_Error: %s\n", SDL_GetError() );
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exit(0);
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}
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void dispInit() {
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if (SDL_Init( SDL_INIT_VIDEO ) < 0 ) sdlDie();
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win=SDL_CreateWindow( "TME", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN );
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if (win==0) sdlDie();
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surf=SDL_GetWindowSurface(win);
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drwsurf=SDL_CreateRGBSurfaceWithFormat(0, SCREEN_WIDTH, SCREEN_HEIGHT, 32, SDL_PIXELFORMAT_RGBA32);
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}
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void dispDraw(uint8_t *mem) {
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int x, y, z;
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SDL_LockSurface(drwsurf);
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uint32_t *pixels=(uint32_t*)drwsurf->pixels;
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for (y=0; y<SCREEN_HEIGHT; y++) {
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for (x=0; x<SCREEN_WIDTH; x+=8) {
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for (z=0x80; z!=0; z>>=1) {
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if (*mem&z) *pixels=0xFF000000; else *pixels=0xFFFFFFFF;
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pixels++;
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}
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mem++;
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}
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}
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SDL_UnlockSurface(drwsurf);
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SDL_BlitSurface(drwsurf, NULL, surf, NULL);
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SDL_UpdateWindowSurface(win);
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}
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