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WINTERMUTE: Write alpha properly on big-endian platforms.

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This commit is contained in:
Einar Johan Trøan Sømåen 2012-08-13 22:28:39 +02:00
parent c96ccaa1c3
commit fb566386c7
1 changed files with 8 additions and 2 deletions
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10
engines/wintermute/video/video_theora_player.cpp
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@ -344,10 +344,18 @@ void VideoTheoraPlayer::writeAlpha() { // TODO: Endian-fix.
assert(_alphaImage->getSurface()->format.bytesPerPixel == 4);
assert(_surface.format.bytesPerPixel == 4);
const byte *alphaData = (byte *)_alphaImage->getSurface()->getBasePtr(0, 0);
#ifdef SCUMM_LITTLE_ENDIAN
int alphaPlace = (_alphaImage->getSurface()->format.aShift / 8);
#else
int alphaPlace = 3 - (_alphaImage->getSurface()->format.aShift / 8);
#endif
alphaData += alphaPlace;
byte *imgData = (byte *)_surface.getBasePtr(0, 0);
#ifdef SCUMM_LITTLE_ENDIAN
imgData += (_surface.format.aShift / 8);
#else
imgData += 3 - (_surface.format.aShift / 8);
#endif
for (int i = 0; i < _surface.w * _surface.h; i++) {
*imgData = *alphaData;
alphaData += 4;
@ -381,8 +389,6 @@ bool VideoTheoraPlayer::display(uint32 alpha) {
//////////////////////////////////////////////////////////////////////////
bool VideoTheoraPlayer::setAlphaImage(const Common::String &filename) {
warning("VideoTheoraPlayer::SetAlphaImage(%s) - Not implemented", filename.c_str());
delete _alphaImage;
_alphaImage = new BaseImage();
if (!_alphaImage || DID_FAIL(_alphaImage->loadFile(filename))) {