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SCI32: Fix KQ7 1.51 video background

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This commit is contained in:
Colin Snover
2016-08-12 09:28:46 -05:00
parent 1fc21de2fc
commit f3d007ea5b
1 changed files with 22 additions and 1 deletions
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engines/sci/graphics/video32.cpp
+22 -1
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@@ -371,7 +371,25 @@ void AVIPlayer::renderFrame() const {
return;
}
bitmap.getBuffer().copyRectToSurface(*surface, 0, 0, Common::Rect(surface->w, surface->h));
// KQ7 1.51 encodes videos with palette entry 0 as white, which makes
// the area around the video turn white too, since it is coded to use
// palette entry 0. This happens to work in the original game because
// the video is rendered by VfW, not in the engine itself. To fix this,
// we just modify the incoming pixel data from the video so if a pixel
// is using entry 0, we change it to use entry 255, which is guaranteed
// to always be white
if (getSciVersion() == SCI_VERSION_2_1_EARLY && g_sci->getGameId() == GID_KQ7) {
uint8 *target = bitmap.getPixels();
uint8 *source = (uint8 *)surface->getPixels();
uint8 *end = (uint8 *)surface->getPixels() + surface->w * surface->h;
while (source != end) {
uint8 value = *source++;
*target++ = value == 0 ? 255 : value;
}
} else {
bitmap.getBuffer().copyRectToSurface(*surface, 0, 0, Common::Rect(surface->w, surface->h));
}
const bool dirtyPalette = _decoder->hasDirtyPalette();
if (dirtyPalette) {
@@ -384,6 +402,9 @@ void AVIPlayer::renderFrame() const {
palette.colors[i].used = true;
}
// Prevent KQ7 1.51 from setting entry 0 to white
palette.colors[0].used = false;
g_sci->_gfxPalette32->submit(palette);
}