#include <stdint.h>

#define CEILDIV(x, y) (((x)+((y)-1))/(y))

#if FB_DEPTH==1

#define FB_WIDTH_BYTES CEILDIV(FB_WIDTH, 8)
#define FRAMEBUFFER uint8_t framebuffer[FB_HEIGHT][FB_WIDTH_BYTES];
#define FB_SET(w,h,c) if (c) { \
    framebuffer[h][w>>3] |= (1 << (w & 7)); \
  } else { \
    framebuffer[h][w>>3] &= ~(1 << (w & 7)); \
  }
#define FB_CLEAR() memset(framebuffer, 0, sizeof(framebuffer[0][0]) * FB_HEIGHT * FB_WIDTH_BYTES);

#elif FB_DEPTH==8

#define FRAMEBUFFER uint8_t framebuffer][FB_HEIGHT][FB_WIDTH];
#define FB_SET(w,h,c) framebuffer[h][w] = c
#define FB_CLEAR() memset(framebuffer, 0, sizeof(framebuffer[0][0]) * FB_HEIGHT * FB_WIDTH);

#endif

#ifndef DONT_DECLARE_FRAMEBUFFER
extern FRAMEBUFFER
#endif