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| author | Max Horn | 2009-01-22 06:41:57 +0000 |
|---|---|---|
| committer | Max Horn | 2009-01-22 06:41:57 +0000 |
| commit | d5d7175691ea3cde7aa941886e3197763c1398c6 (patch) | |
| tree | f7f9d8600db4ba9d4988931936b10cfd078511d8 /graphics | |
| parent | 0034aa3b9c7a1f0123df9e809a6a5d0d58bd9bd1 (diff) | |
| download | scummvm-rg350-d5d7175691ea3cde7aa941886e3197763c1398c6.tar.gz scummvm-rg350-d5d7175691ea3cde7aa941886e3197763c1398c6.tar.bz2 scummvm-rg350-d5d7175691ea3cde7aa941886e3197763c1398c6.zip | |
Speed up HQ2x/HQ3x C versions by reordering tests in diffYUV: most likeliest to be taken now is first, least likely is last
svn-id: r35996
Diffstat (limited to 'graphics')
| -rw-r--r-- | graphics/scaler/intern.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/graphics/scaler/intern.h b/graphics/scaler/intern.h index 6fc0d6919b..5955aa1bac 100644 --- a/graphics/scaler/intern.h +++ b/graphics/scaler/intern.h @@ -115,11 +115,6 @@ static inline bool diffYUV(int yuv1, int yuv2) { int diff; int mask; - diff = ((yuv1 & Ymask) - (yuv2 & Ymask)); - mask = diff >> 31; // -1 if value < 0, 0 otherwise - diff = (diff ^ mask) - mask; //-1: ~value + 1; 0: value - if (diff > trY) return true; - diff = ((yuv1 & Umask) - (yuv2 & Umask)); mask = diff >> 31; // -1 if value < 0, 0 otherwise diff = (diff ^ mask) - mask; //-1: ~value + 1; 0: value @@ -130,6 +125,11 @@ static inline bool diffYUV(int yuv1, int yuv2) { diff = (diff ^ mask) - mask; //-1: ~value + 1; 0: value if (diff > trV) return true; + diff = ((yuv1 & Ymask) - (yuv2 & Ymask)); + mask = diff >> 31; // -1 if value < 0, 0 otherwise + diff = (diff ^ mask) - mask; //-1: ~value + 1; 0: value + if (diff > trY) return true; + return false; /* return |