Function bm_AllocNoMemBitmap

bitmap/bitmain.cpp:541–574

Just like bm_AllocBitmap but doesn't actually allocate memory. Useful for paging!

}
// Just like bm_AllocBitmap but doesn't actually allocate memory.  Useful for paging!
int bm_AllocNoMemBitmap(int w, int h) {
  int n = 0, i;
  if (!Bitmaps_initted) {
    Int3();
    mprintf(0, "Bitmaps not initted!!!\n");
    return -1;
  }

  for (i = 0; i < MAX_BITMAPS; i++) {
    if (GameBitmaps[i].used == 0) {
      n = i;
      break;
    }
  }
  // If we can't find a free slot in which to alloc, bail out
  if (i == MAX_BITMAPS) {
    Int3();
    mprintf(0, "ERROR! Couldn't find a free bitmap to alloc!\n");
    return -1;
  }
  // If no go on the malloc, bail out with -1

  memset(&GameBitmaps[n], 0, sizeof(bms_bitmap));

  GameBitmaps[n].width = w;
  GameBitmaps[n].height = h;
  GameBitmaps[n].used = 1;
  GameBitmaps[n].format = BITMAP_FORMAT_STANDARD;
  GameBitmaps[n].flags = BF_NOT_RESIDENT | BF_CHANGED | BF_BRAND_NEW;
  GameBitmaps[n].cache_slot = -1;

  Num_of_bitmaps++;
  return n;
}
// Searches thru all bitmaps for a specific name, returns -1 if not found
// or index of bitmap with name
int bm_FindBitmapName(const char *name) {