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Fix bug for non 8bpp indexed game screens in grabScreen565.

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svn-id: r43796
This commit is contained in:
Johannes Schickel 2009-08-29 08:02:40 +00:00
parent 1b7fef5117
commit 84c1fc6399
1 changed files with 10 additions and 8 deletions
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18
graphics/scaler/thumbnail_intern.cpp
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@ -107,20 +107,22 @@ static bool grabScreen565(Graphics::Surface *surf) {
surf->create(screen->w, screen->h, 2);
Graphics::PixelFormat screenFormat = g_system->getScreenFormat();
for (uint y = 0; y < screen->h; ++y) {
for (uint x = 0; x < screen->w; ++x) {
byte r, g, b;
if (screen->bytesPerPixel == 2) {
uint16 col = READ_UINT16(screen->getBasePtr(x, y));
r = ((col >> 10) & 0x1F) << 3;
g = ((col >> 5) & 0x1F) << 3;
b = ((col >> 0) & 0x1F) << 3;
} else {
byte r, g, b;
if (screenFormat.bytesPerPixel == 1) {
r = palette[((uint8*)screen->pixels)[y * screen->pitch + x] * 4];
g = palette[((uint8*)screen->pixels)[y * screen->pitch + x] * 4 + 1];
b = palette[((uint8*)screen->pixels)[y * screen->pitch + x] * 4 + 2];
} else if (screenFormat.bytesPerPixel == 2) {
uint16 col = READ_UINT16(screen->getBasePtr(x, y));
screenFormat.colorToRGB(col, r, g, b);
}
((uint16*)surf->pixels)[y * surf->w + x] = Graphics::RGBToColor<Graphics::ColorMasks<565> >(r, g, b);
((uint16 *)surf->pixels)[y * surf->w + x] = Graphics::RGBToColor<Graphics::ColorMasks<565> >(r, g, b);
}
}