diff options
| -rw-r--r-- | engines/avalanche/graphics.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/engines/avalanche/graphics.cpp b/engines/avalanche/graphics.cpp index 4bd6695bb8..367ca27c09 100644 --- a/engines/avalanche/graphics.cpp +++ b/engines/avalanche/graphics.cpp @@ -790,7 +790,10 @@ Graphics::Surface GraphicManager::loadPictureGraphic(Common::File &file) { byte pixel = file.readByte(); for (int bit = 0; bit < 8; bit++) { byte pixelBit = (pixel >> bit) & 1; - *(byte *)picture.getBasePtr(x + 7 - bit, y) += (pixelBit << plane); + // If the picture's width is not a multiple of 8, and we get over the boundary with the 'x' cycle, pixelBit is surely == 0. + // Otherwise, it doesn't cause trouble, since addign 0 doesn't have an effect at all. + if (pixelBit != 0) + *(byte *)picture.getBasePtr(x + 7 - bit, y) += (pixelBit << plane); } } } |