swscale: Eliminate rgb24toyv12_c() duplication.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Diego Biurrun <diego@biurrun.de>

libswscale/rgb2rgb.h

@@ -68,6 +68,10 @@ void shuffle_bytes_1230(const uint8_t *src, uint8_t *dst, long src_size);
 void shuffle_bytes_3012(const uint8_t *src, uint8_t *dst, long src_size);
 void shuffle_bytes_3210(const uint8_t *src, uint8_t *dst, long src_size);
 
+void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                   uint8_t *vdst, long width, long height, long lumStride,
+                   long chromStride, long srcStride);
+
 /**
  * Height should be a multiple of 2 and width should be a multiple of 16.
  * (If this is a problem for anyone then tell me, and I will fix it.)

libswscale/rgb2rgb_template.c

@@ -633,11 +633,9 @@ static inline void uyvytoyv12_c(const uint8_t *src, uint8_t *ydst,
  * others are ignored in the C version.
  * FIXME: Write HQ version.
  */
-static inline void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst,
-                                 uint8_t *udst, uint8_t *vdst,
-                                 long width, long height,
-                                 long lumStride, long chromStride,
-                                 long srcStride)
+void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+                   uint8_t *vdst, long width, long height, long lumStride,
+                   long chromStride, long srcStride)
 {
     long y;
     const int chromWidth = width >> 1;

libswscale/x86/rgb2rgb_template.c

@@ -1976,52 +1976,7 @@ static inline void RENAME(rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_
                      SFENCE"     \n\t"
                      :::"memory");
 
-    for (; y<height; y+=2) {
-        long i;
-        for (i=0; i<chromWidth; i++) {
-            unsigned int b = src[6*i+0];
-            unsigned int g = src[6*i+1];
-            unsigned int r = src[6*i+2];
-
-            unsigned int Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
-            unsigned int V  =  ((RV*r + GV*g + BV*b)>>RGB2YUV_SHIFT) + 128;
-            unsigned int U  =  ((RU*r + GU*g + BU*b)>>RGB2YUV_SHIFT) + 128;
-
-            udst[i]     = U;
-            vdst[i]     = V;
-            ydst[2*i]   = Y;
-
-            b = src[6*i+3];
-            g = src[6*i+4];
-            r = src[6*i+5];
-
-            Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
-            ydst[2*i+1]     = Y;
-        }
-        ydst += lumStride;
-        src  += srcStride;
-
-        for (i=0; i<chromWidth; i++) {
-            unsigned int b = src[6*i+0];
-            unsigned int g = src[6*i+1];
-            unsigned int r = src[6*i+2];
-
-            unsigned int Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
-
-            ydst[2*i]     = Y;
-
-            b = src[6*i+3];
-            g = src[6*i+4];
-            r = src[6*i+5];
-
-            Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
-            ydst[2*i+1]     = Y;
-        }
-        udst += chromStride;
-        vdst += chromStride;
-        ydst += lumStride;
-        src  += srcStride;
-    }
+     rgb24toyv12_c(src, ydst, udst, vdst, width, height-y, lumStride, chromStride, srcStride);
 }
 
 static void RENAME(interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dest,