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IMAGE: Fix MSRLEDecoder if pitch > width

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Fixes #14356.
This commit is contained in:
Miro Kropacek 2023-03-22 22:22:54 +01:00 committed by Eugene Sandulenko
parent 21b2a97616
commit 67aea06893
1 changed files with 5 additions and 4 deletions
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9
image/codecs/msrle.cpp
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@ -55,9 +55,10 @@ void MSRLEDecoder::decode8(Common::SeekableReadStream &stream) {
byte *data = (byte *) _surface->getPixels();
uint16 width = _surface->w;
uint16 height = _surface->h;
uint16 pitch = _surface->pitch;
byte *output = data + ((height - 1) * width);
byte *output_end = data + ((height) * width);
byte *output = data + ((height - 1) * pitch);
byte *output_end = data + ((height) * pitch) - (pitch - width);
while (!stream.eos()) {
byte count = stream.readByte();
@ -69,7 +70,7 @@ void MSRLEDecoder::decode8(Common::SeekableReadStream &stream) {
x = 0;
y--;
output = data + (y * width);
output = data + (y * pitch);
} else if (value == 1) {
// End of image
@ -89,7 +90,7 @@ void MSRLEDecoder::decode8(Common::SeekableReadStream &stream) {
return;
}
output = data + ((y * width) + x);
output = data + ((y * pitch) + x);
} else {
// Copy data