Function bm_SaveFileBitmap

bitmap/bitmain.cpp:1082–1109

Saves a bitmap to a file. Saves the bitmap as an OUTRAGE_COMPRESSED_OGF. Returns -1 if something is wrong.

// Saves a bitmap to a file.  Saves the bitmap as an OUTRAGE_COMPRESSED_OGF.
// Returns -1 if something is wrong.
int bm_SaveFileBitmap(const std::filesystem::path &filename, int handle) {
  int ret;
  CFILE *fp;
  if (!GameBitmaps[handle].used) {
    mprintf(0, "bm_SaveBitmap: Trying to save a bitmap that isn't used!\n");
    Int3();
    return -1;
  }
  if (handle == BAD_BITMAP_HANDLE) {
    Int3(); // Hey, you shouldn't be saving this bitmap!
    return -1;
  }
  if (!bm_MakeBitmapResident(handle)) {
    mprintf(0, "There was a problem paging this bitmap in!\n");
    return -1;
  }
  fp = (CFILE *)cfopen(filename, "wb");

  if (!fp) {
    mprintf(0, "bm_SaveBitmap: Trying to save a bitmap to a closed file!\n");
    Int3();
    return -1;
  }
  ret = bm_SaveBitmap(fp, handle);

  cfclose(fp);
  return ret;
}
// returns a bitmaps width (based on miplevel), else -1 if something is wrong
int bm_w(int handle, int miplevel) {
  int w;