forked from mirrors/nixpkgs
18 lines
963 B
Diff
18 lines
963 B
Diff
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--- a/utils/cfhq2xa.C
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+++ b/utils/cfhq2xa.C
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@@ -182,10 +182,10 @@ static inline bool Diff (pixel w1, pixel w2)
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pixel YUV1 = RGBAtoYUVA (w1);
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pixel YUV2 = RGBAtoYUVA (w2);
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- return ((abs (((YUV1 >> Rshift) & Cmask) - ((YUV2 >> Rshift) & Cmask)) > trY) ||
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- (abs (((YUV1 >> Gshift) & Cmask) - ((YUV2 >> Gshift) & Cmask)) > trU) ||
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- (abs (((YUV1 >> Bshift) & Cmask) - ((YUV2 >> Bshift) & Cmask)) > trV) ||
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- (abs (((YUV1 >> Ashift) & Cmask) - ((YUV2 >> Ashift) & Cmask)) > trA) );
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+ return ((abs ((signed int)((YUV1 >> Rshift) & Cmask) - (signed int)((YUV2 >> Rshift) & Cmask)) > trY) ||
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+ (abs ((signed int)((YUV1 >> Gshift) & Cmask) - (signed int)((YUV2 >> Gshift) & Cmask)) > trU) ||
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+ (abs ((signed int)((YUV1 >> Bshift) & Cmask) - (signed int)((YUV2 >> Bshift) & Cmask)) > trV) ||
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+ (abs ((signed int)((YUV1 >> Ashift) & Cmask) - (signed int)((YUV2 >> Ashift) & Cmask)) > trA) );
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}
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static void
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