diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/core/SkBlitMask.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/core/SkBlitMask.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,90 @@
+/*
+ * 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 SkBlitMask_DEFINED
+#define SkBlitMask_DEFINED
+
+#include "SkBitmap.h"
+#include "SkColor.h"
+#include "SkMask.h"
+
+class SkBlitMask {
+public:
+    /**
+     *  Returns true if the device config and mask format were supported.
+     *  else return false (nothing was drawn)
+     */
+    static bool BlitColor(const SkBitmap& device, const SkMask& mask,
+                          const SkIRect& clip, SkColor color);
+
+    /**
+     *  Function pointer that blits the mask into a device (dst) colorized
+     *  by color. The number of pixels to blit is specified by width and height,
+     *  but each scanline is offset by dstRB (rowbytes) and srcRB respectively.
+     */
+    typedef void (*ColorProc)(void* dst, size_t dstRB,
+                              const void* mask, size_t maskRB,
+                              SkColor color, int width, int height);
+
+    /**
+     *  Function pointer that blits a row of mask(lcd16) into a row of dst
+     *  colorized by a single color. The number of pixels to blit is specified
+     *  by width.
+     */
+    typedef void (*BlitLCD16RowProc)(SkPMColor dst[], const uint16_t src[],
+                                     SkColor color, int width,
+                                     SkPMColor opaqueDst);
+
+    /**
+     *  Function pointer that blits a row of src colors through a row of a mask
+     *  onto a row of dst colors. The RowFactory that returns this function ptr
+     *  will have been told the formats for the mask and the dst.
+     */
+    typedef void (*RowProc)(void* dst, const void* mask,
+                            const SkPMColor* src, int width);
+
+    /**
+     *  Public entry-point to return a blitmask ColorProc.
+     *  May return NULL if config or format are not supported.
+     */
+    static ColorProc ColorFactory(SkBitmap::Config, SkMask::Format, SkColor);
+
+    /**
+     *  Return either platform specific optimized blitmask ColorProc,
+     *  or NULL if no optimized routine is available.
+     */
+    static ColorProc PlatformColorProcs(SkBitmap::Config, SkMask::Format, SkColor);
+
+    /**
+     *  Public entry-point to return a blitcolor BlitLCD16RowProc.
+     */
+    static BlitLCD16RowProc BlitLCD16RowFactory(bool isOpaque);
+
+    /**
+     *  Return either platform specific optimized blitcolor BlitLCD16RowProc,
+     *  or NULL if no optimized routine is available.
+     */
+    static BlitLCD16RowProc PlatformBlitRowProcs16(bool isOpaque);
+
+    enum RowFlags {
+        kSrcIsOpaque_RowFlag    = 1 << 0
+    };
+
+    /**
+     *  Public entry-point to return a blitmask RowProc.
+     *  May return NULL if config or format are not supported.
+     */
+    static RowProc RowFactory(SkBitmap::Config, SkMask::Format, RowFlags);
+
+    /**
+     *  Return either platform specific optimized blitmask RowProc,
+     *  or NULL if no optimized routine is available.
+     */
+    static RowProc PlatformRowProcs(SkBitmap::Config, SkMask::Format, RowFlags);
+};
+
+#endif