Function bm_h

bitmap/bitmain.cpp:1127–1142

returns a bitmaps height (based on miplevel), else -1 if something is wrong

}
// returns a bitmaps height (based on miplevel), else -1 if something is wrong
int bm_h(int handle, int miplevel) {
  int h;
  if (!GameBitmaps[handle].used) {
    Int3();
    return -1;
  }
  // If this bitmap is not page in, do so!
  if (GameBitmaps[handle].flags & BF_NOT_RESIDENT)
    if (!bm_MakeBitmapResident(handle))
      return 0;
  if (!(GameBitmaps[handle].flags & BF_MIPMAPPED))
    miplevel = 0;
  h = GameBitmaps[handle].height;
  h >>= miplevel;
  return (h);
}

// returns the number of levels of mips a bitmap should have
int bm_miplevels(int handle) {