skia: blend32_16_row for neon version

include/core/SkBlitRow.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkBlitRow_DEFINED
 #define SkBlitRow_DEFINED
 
@@ skipping 66 matching lines @@
     typedef void (*ColorRectProc)(SkPMColor* dst, int width, int height,
                                   size_t rowBytes, SkPMColor color);
 
     /** Blend a single color into a rectangle of D32 pixels. */
     static void ColorRect32(SkPMColor* dst, int width, int height,
                             size_t rowBytes, SkPMColor color);
 
     //! Public entry-point to return a blit function ptr
     static ColorRectProc ColorRectProcFactory();
 
+    /** blend a single color into a row of D16 pixels. */
+    typedef void (*Blend32_16_row_Proc)(const SkPMColor* SK_RESTRICT src,
+                                        uint16_t dst[], int count);
+
+    //! Public entry-point to return a blend32_16_row function ptr
+    static Blend32_16_row_Proc Blend32_16_rowProcFactory();
+
     /** These static functions are called by the Factory and Factory32
         functions, and should return either NULL, or a
         platform-specific function-ptr to be used in place of the
         system default.
      */
 
     static Proc32 PlatformProcs32(unsigned flags);
     static Proc PlatformProcs565(unsigned flags);
     static ColorProc PlatformColorProc();
+    static Blend32_16_row_Proc PlatformBlend32_16_rowProc();
 
 private:
     enum {
         kFlags16_Mask = 7,
         kFlags32_Mask = 3
     };
 };
 
 #endif