Function bm_format

bitmap/bitmain.cpp:1547–1556

Returns the format of this bitmap

}
// Returns the format of this bitmap
int bm_format(int handle) {
  if (!GameBitmaps[handle].used) {
    Int3();
    return -1;
  }
  if (GameBitmaps[handle].flags & BF_NOT_RESIDENT)
    if (!bm_MakeBitmapResident(handle))
      return 0;
  return (GameBitmaps[handle].format);
}