func: static uint32_t tight_palette_buf2rgb(int bpp, const uint8_t *buf)
  
  {
  
      uint32_t rgb = 0;
  
  
  
      if (bpp == 32) {
  
          rgb |= ((buf[0] & ~1) | !((buf[4] >> 3) & 1)) << 24;
  
          rgb |= ((buf[1] & ~1) | !((buf[4] >> 2) & 1)) << 16;
  
          rgb |= ((buf[2] & ~1) | !((buf[4] >> 1) & 1)) <<  8;
  
          rgb |= ((buf[3] & ~1) | !((buf[4] >> 0) & 1)) <<  0;
  
      }
  
      if (bpp == 16) {
  
          rgb |= ((buf[0] & ~1) | !((buf[2] >> 1) & 1)) << 8;
  
          rgb |= ((buf[1] & ~1) | !((buf[2] >> 0) & 1)) << 0;
  
      }
  
      return rgb;
  
  }
  