SkScaledCodec class

src/codec/SkJpegCodec.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 SkJpegCodec_DEFINED
 #define SkJpegCodec_DEFINED
 
@@ skipping 42 matching lines @@
             SkPMColor*, int*) override;
 
     SkEncodedFormat onGetEncodedFormat() const override {
         return kJPEG_SkEncodedFormat;
     }
 
     SkScanlineDecoder* onGetScanlineDecoder(const SkImageInfo& dstInfo, const Options& options,
             SkPMColor ctable[], int* ctableCount) override;
 
 private:
+    SkAutoTDelete<SkSwizzler>   fSwizzler;
 
     /*
      * Read enough of the stream to initialize the SkJpegCodec.
      * Returns a bool representing success or failure.
      *
      * @param codecOut
      * If this returns true, and codecOut was not NULL,
      * codecOut will be set to a new SkJpegCodec.
      *
      * @param decoderMgrOut
@@ skipping 14 matching lines @@
      * Creates an instance of the decoder
      * Called only by NewFromStream
      *
      * @param srcInfo contains the source width and height
      * @param stream the encoded image data
      * @param decoderMgr holds decompress struct, src manager, and error manager
      *                   takes ownership
      */
     SkJpegCodec(const SkImageInfo& srcInfo, SkStream* stream, JpegDecoderMgr* decoderMgr);
 
+    // Helper to set up swizzler.
+    Result initializeSwizzler(const SkImageInfo& requestedInfo, void* dst,
+                              size_t rowBytes, const Options&, SkPMColor*, int* ctableCount);
+
     /*
      * Handles rewinding the input stream if it is necessary
      */
     bool handleRewind();
 
     /*
      * Checks if the conversion between the input image and the requested output
      * image has been implemented
      * Sets the output color space
      */
@@ skipping 12 matching lines @@
             const Options& options);
 
     SkAutoTDelete<JpegDecoderMgr> fDecoderMgr;
 
     friend class SkJpegScanlineDecoder;
 
     typedef SkCodec INHERITED;
 };
 
 #endif