[Ffmpeg-cvslog] r6030 - in trunk: libavcodec/mpegvideo.c libavutil/common.h

michael subversion
Sat Aug 19 22:55:03 CEST 2006


Author: michael
Date: Sat Aug 19 22:55:02 2006
New Revision: 6030

Modified:
   trunk/libavcodec/mpegvideo.c
   trunk/libavutil/common.h

Log:
SWAP


Modified: trunk/libavcodec/mpegvideo.c
==============================================================================
--- trunk/libavcodec/mpegvideo.c	(original)
+++ trunk/libavcodec/mpegvideo.c	Sat Aug 19 22:55:02 2006
@@ -1687,7 +1687,7 @@
  * @param color color of the arrow
  */
 static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color){
-    int t, x, y, fr, f;
+    int x, y, fr, f;
 
     sx= clip(sx, 0, w-1);
     sy= clip(sy, 0, h-1);
@@ -1698,8 +1698,8 @@
 
     if(ABS(ex - sx) > ABS(ey - sy)){
         if(sx > ex){
-            t=sx; sx=ex; ex=t;
-            t=sy; sy=ey; ey=t;
+            SWAP(int, sx, ex);
+            SWAP(int, sy, ey);
         }
         buf+= sx + sy*stride;
         ex-= sx;
@@ -1712,8 +1712,8 @@
         }
     }else{
         if(sy > ey){
-            t=sx; sx=ex; ex=t;
-            t=sy; sy=ey; ey=t;
+            SWAP(int, sx, ex);
+            SWAP(int, sy, ey);
         }
         buf+= sx + sy*stride;
         ey-= sy;

Modified: trunk/libavutil/common.h
==============================================================================
--- trunk/libavutil/common.h	(original)
+++ trunk/libavutil/common.h	Sat Aug 19 22:55:02 2006
@@ -169,6 +169,8 @@
 #define FFMAX(a,b) ((a) > (b) ? (a) : (b))
 #define FFMIN(a,b) ((a) > (b) ? (b) : (a))
 
+#define SWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
+
 /* misc math functions */
 extern FF_IMPORT_ATTR const uint8_t ff_log2_tab[256];
 




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