Function bm_rowsize

bitmap/bitmain.cpp:1347–1353

given a handle and a miplevel, returns the bytes per bitmap row

}
// given a handle and a miplevel, returns the bytes per bitmap row
int bm_rowsize(int handle, int miplevel) {
  int w;
  ASSERT(GameBitmaps[handle].used > 0);
  w = bm_w(handle, miplevel);
  w *= 2;
  return w;
}
//	a function to determine if a pixel in a bitmap is transparent
bool bm_pixel_transparent(int bm_handle, int x, int y) {
  if ((bm_data(bm_handle, 0)) == NULL)