SSE2 implementation of memcpy32

src/core/SkBlitRow_D32.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBlitRow.h"
 #include "SkBlitMask.h"
 #include "SkColorPriv.h"
 #include "SkUtils.h"
 
 #define UNROLL
 
 SkBlitRow::ColorRectProc PlatformColorRectProcFactory();
 
 static void S32_Opaque_BlitRow32(SkPMColor* SK_RESTRICT dst,
                                  const SkPMColor* SK_RESTRICT src,
                                  int count, U8CPU alpha) {
     SkASSERT(255 == alpha);
-    memcpy(dst, src, count * sizeof(SkPMColor));
+    sk_memcpy32(dst, src, count);
 }
 
 static void S32_Blend_BlitRow32(SkPMColor* SK_RESTRICT dst,
                                 const SkPMColor* SK_RESTRICT src,
                                 int count, U8CPU alpha) {
     SkASSERT(alpha <= 255);
     if (count > 0) {
         unsigned src_scale = SkAlpha255To256(alpha);
         unsigned dst_scale = 256 - src_scale;
 
@@ skipping 208 matching lines @@
 }
 
 SkBlitRow::ColorRectProc SkBlitRow::ColorRectProcFactory() {
     SkBlitRow::ColorRectProc proc = PlatformColorRectProcFactory();
     if (NULL == proc) {
         proc = ColorRect32;
     }
     SkASSERT(proc);
     return proc;
 }