Add SSE4 optimization of S32A_Opaque_Blitrow

src/opts/SkBlitRow_opts_SSE4.h

Index: src/opts/SkBlitRow_opts_SSE4.h
diff --git a/src/opts/SkBlitRow_opts_SSE4.h b/src/opts/SkBlitRow_opts_SSE4.h
new file mode 100644
index 0000000000000000000000000000000000000000..6c299844041eb4bb9c04f4bd2999bc42062e29bd
--- /dev/null
+++ b/src/opts/SkBlitRow_opts_SSE4.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkBlitRow_opts_SSE4_DEFINED
+#define SkBlitRow_opts_SSE4_DEFINED
+
+#include "SkBlitRow.h"
+
+#if !defined(_MSC_VER)
+extern "C" void S32A_Opaque_BlitRow32_SSE4_asm(SkPMColor* SK_RESTRICT dst,
+                                               const SkPMColor* SK_RESTRICT src,
+                                               int count, U8CPU alpha);
+
+extern "C" void S32A_Blend_BlitRow32_SSE4_asm(SkPMColor* SK_RESTRICT dst,

[mtklein, 2014/05/16 18:06:38]

Remove until implemented?

[henrik.smiding, 2014/05/20 15:10:29]

Done.

+                                              const SkPMColor* SK_RESTRICT src,
+                                              int count, U8CPU alpha);
+#endif
+
+#endif
+