diff options
| -rw-r--r-- | engines/dm/gfx.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/engines/dm/gfx.cpp b/engines/dm/gfx.cpp index 49f0d2e4d3..d8bf60eb58 100644 --- a/engines/dm/gfx.cpp +++ b/engines/dm/gfx.cpp @@ -2894,8 +2894,9 @@ uint16 DisplayMan::getHorizontalOffsetM22(uint16 val) { } bool DisplayMan::isDerivedBitmapInCache(int16 derivedBitmapIndex) { - if (_derivedBitmaps == nullptr) { - _derivedBitmaps[derivedBitmapIndex] = new byte[_derivedBitmapByteCount[derivedBitmapIndex]]; + if (_derivedBitmaps[derivedBitmapIndex] == nullptr) { + // * 2, because the original uses 4 bits instead of 8 bits to store a pixel + _derivedBitmaps[derivedBitmapIndex] = new byte[_derivedBitmapByteCount[derivedBitmapIndex] * 2]; return false; } else return true; |