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ACCESS: movie player: convert 6-bit pal properly

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This commit is contained in:
Martin Kiewitz 2015-11-24 16:26:02 +01:00
parent 85ebe4c8e0
commit c620f1076d
1 changed files with 7 additions and 3 deletions

10
engines/access/video/movie_decoder.cpp

@ -617,13 +617,17 @@ bool AccessVIDMovieDecoder::StreamVideoTrack::skipOverPalette(Common::SeekableRe
}
void AccessVIDMovieDecoder::StreamVideoTrack::decodePalette(Common::SeekableReadStream *stream) {
byte red, green, blue;
assert(stream);
// VID files use a 6-bit palette and not a 8-bit one, we change it to 8-bit
for (uint16 curColor = 0; curColor < 256; curColor++) {
_palette[curColor * 3] = stream->readByte() << 2;
_palette[curColor * 3 + 1] = stream->readByte() << 2;
_palette[curColor * 3 + 2] = stream->readByte() << 2;
red = stream->readByte() & 0x3F;
green = stream->readByte() & 0x3F;
blue = stream->readByte() & 0x3F;
_palette[curColor * 3] = (red << 2) | (red >> 4);
_palette[curColor * 3 + 1] = (green << 2) | (green >> 4);
_palette[curColor * 3 + 2] = (blue << 2) | (blue >> 4);
}
_dirtyPalette = true;