[Mplayer-cvslog] CVS: main/libmpcodecs vf_ivtc.c,1.2,1.3

[Richard Felker CVS]

Update of /cvsroot/mplayer/main/libmpcodecs
In directory mail:/var/tmp.root/cvs-serv916/libmpcodecs

Modified Files:
	vf_ivtc.c 
Log Message:
optimization -- lots of conditional jumps in inner loops are bad


Index: vf_ivtc.c
===================================================================
RCS file: /cvsroot/mplayer/main/libmpcodecs/vf_ivtc.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- vf_ivtc.c	26 Apr 2003 05:59:28 -0000	1.2
+++ vf_ivtc.c	26 Apr 2003 18:31:08 -0000	1.3
@@ -238,7 +238,8 @@
 #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)