Implementation of SkBitmapRegionDecoder using SkAndroidCodec

tools/SkBitmapRegionDecoderInterface.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkBitmapRegionDecoder_DEFINED
 #define SkBitmapRegionDecoder_DEFINED
 
 #include "SkBitmap.h"
 #include "SkStream.h"
 
 /*
  * This class aims to provide an interface to test multiple implementations of
  * SkBitmapRegionDecoder.
  */
 class SkBitmapRegionDecoderInterface {
 public:
 
     enum Strategy {
-        kCanvas_Strategy,   // Draw to the canvas, uses SkCodec
-        kOriginal_Strategy, // Sampling, uses SkImageDecoder
-        // TODO (msarett): Add strategy for SkScaledCodec
+        kCanvas_Strategy,       // Draw to the canvas, uses SkCodec
+        kOriginal_Strategy,     // Sampling, uses SkImageDecoder
+        kAndroidCodec_Strategy, // Uses SkAndroidCodec for scaling and subsetting
     };
 
     /*
-     * @param stream   Encoded image stream, takes ownership
+     * @param data     Refs the data while this object exists, unrefs on destruction
      * @param strategy Strategy used for scaling and subsetting
-     * @return         Tries to create an SkBitmapRegionDecoder, returns NULL
-     *                 on failure
+     * @return         Tries to create an SkBitmapRegionDecoder, returns NULL on failure
      */
     static SkBitmapRegionDecoderInterface* CreateBitmapRegionDecoder(
-            SkStreamRewindable* stream, Strategy strategy);
+            SkData* data, Strategy strategy);
 
     /*
      * Decode a scaled region of the encoded image stream
      *
      * @param start_x    X-coordinate of upper-left corner of region.
      *                   This coordinate is unscaled, relative to the original dimensions.
      * @param start_y    Y-coordinate of upper-left corner of region.
      *                   This coordinate is unscaled, relative to the original dimensions.
      * @param width      Width of the region to decode.
      *                   This distance is unscaled, relative to the original dimensions.
@@ skipping 28 matching lines @@
         : fWidth(width)
         , fHeight(height)
     {}
 
 private:
     const int fWidth;
     const int fHeight;
 };
 
 #endif