[Ffmpeg-cvslog] CVS: ffmpeg/libavcodec vp3.c,1.49,1.50

[Michael Niedermayer CVS]

Update of /cvsroot/ffmpeg/ffmpeg/libavcodec
In directory mail:/var2/tmp/cvs-serv18356

Modified Files:
	vp3.c 
Log Message:
SATURATE_U8 -> clip_uint8 (10% faster loop filter)


Index: vp3.c
===================================================================
RCS file: /cvsroot/ffmpeg/ffmpeg/libavcodec/vp3.c,v
retrieving revision 1.49
retrieving revision 1.50
diff -u -d -r1.49 -r1.50
--- vp3.c	17 May 2005 11:36:07 -0000	1.49
+++ vp3.c	17 May 2005 20:30:22 -0000	1.50
@@ -2245,8 +2245,6 @@
     emms_c();
 }
 
-#define SATURATE_U8(x) ((x) < 0) ? 0 : ((x) > 255) ? 255 : x
-
 static void horizontal_filter(unsigned char *first_pixel, int stride,
     int *bounding_values)
 {
@@ -2260,8 +2258,8 @@
             (first_pixel[ 0] * 3) -
             (first_pixel[ 1] * 1);
         filter_value = bounding_values[(filter_value + 4) >> 3];
-        first_pixel[-1] = SATURATE_U8(first_pixel[-1] + filter_value);
-        first_pixel[ 0] = SATURATE_U8(first_pixel[ 0] - filter_value);
+        first_pixel[-1] = clip_uint8(first_pixel[-1] + filter_value);
+        first_pixel[ 0] = clip_uint8(first_pixel[ 0] - filter_value);
     }
 }
 
@@ -2278,8 +2276,8 @@
             (first_pixel[ (0         )] * 3) -
             (first_pixel[ (1 * stride)] * 1);
         filter_value = bounding_values[(filter_value + 4) >> 3];
-        first_pixel[-(1 * stride)] = SATURATE_U8(first_pixel[-(1 * stride)] + filter_value);
-        first_pixel[0] = SATURATE_U8(first_pixel[0] - filter_value);
+        first_pixel[-(1 * stride)] = clip_uint8(first_pixel[-(1 * stride)] + filter_value);
+        first_pixel[0] = clip_uint8(first_pixel[0] - filter_value);
     }
 }