simplify yuv2yuv1()

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@27320 b3059339-0415-0410-9bf9-f77b7e298cf2

simplify yuv2yuv1()
git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@27320 b3059339-0415-0410-9bf9-f77b7e298cf2
0dfd226c · michael · c76c46c4 · 0dfd226c
Commit 0dfd226c authored Jul 17, 2008 by michael
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Showing with 7 additions and 16 deletions

swscale_template.c swscale_template.c +7 -16

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--- a/swscale_template.c
+++ b/swscale_template.c
@@ -973,29 +973,20 @@ static inline void RENAME(yuv2yuv1)(int16_t *lumSrc, int16_t *chrSrc,
                                    uint8_t *dest, uint8_t *uDest, uint8_t *vDest, long dstW, long chrDstW)
 {
 #ifdef HAVE_MMX
-    if (uDest)
+    long p= uDest ? 3 : 1;
-    {
+    uint8_t *src[3]= {lumSrc + dstW, chrSrc + chrDstW, chrSrc + VOFW + chrDstW};
-        asm volatile(
+    uint8_t *dst[3]= {dest, uDest, vDest};
-            YSCALEYUV2YV121
+    long counter[3] = {dstW, chrDstW, chrDstW};
-            :: "r" (chrSrc + chrDstW), "r" (uDest + chrDstW),
-            "g" (-chrDstW)
-            : "%"REG_a
-        );
+    while(p--){
        asm volatile(
            YSCALEYUV2YV121
-            :: "r" (chrSrc + VOFW + chrDstW), "r" (vDest + chrDstW),
+            :: "r" (src[p]), "r" (dst[p] + counter[p]),
-            "g" (-chrDstW)
+            "g" (-counter[p])
            : "%"REG_a
        );
    }
-    asm volatile(
-        YSCALEYUV2YV121
-        :: "r" (lumSrc + dstW), "r" (dest + dstW),
-        "g" (-dstW)
-        : "%"REG_a
-    );
 #else
    int i;
    for (i=0; i<dstW; i++)