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optimization -- lots of conditional jumps in inner loops are bad

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9996 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rfelker 2003-04-26 18:31:08 +00:00
parent 748e2bcb48
commit c4090108ff
1 changed files with 2 additions and 1 deletions
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3
libmpcodecs/vf_ivtc.c
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@ -238,7 +238,8 @@ static void block_diffs_MMX(struct metrics *m, unsigned char *old, unsigned char
#endif
//#define MAG(a) ((a)*(a))
#define MAG(a) (abs(a))
//#define MAG(a) (abs(a))
#define MAG(a) (((a)^((a)>>31))-((a)>>31))
//#define LOWPASS(s) (((s)[-2] + 4*(s)[-1] + 6*(s)[0] + 4*(s)[1] + (s)[2])>>4)
//#define LOWPASS(s) (((s)[-1] + 2*(s)[0] + (s)[1])>>2)