Move SkImage::encode to SkImageEncoder

include/core/SkImageEncoder.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 SkImageEncoder_DEFINED
 #define SkImageEncoder_DEFINED
 
 #include "SkTypes.h"
 #include "SkTRegistry.h"
 
 class SkBitmap;
 class SkData;
+class SkImage;
 class SkWStream;
 
 class SkImageEncoder {
 public:
     enum Type {
         kUnknown_Type,
         kBMP_Type,
         kGIF_Type,
         kICO_Type,
         kJPEG_Type,
@@ skipping 27 matching lines @@
     bool encodeFile(const char file[], const SkBitmap& bm, int quality);
 
     /**
      * Encode bitmap 'bm' in the desired format, writing results to
      * stream 'stream', at quality level 'quality' (which can be in
      * range 0-100). Returns false on failure.
      */
     bool encodeStream(SkWStream* stream, const SkBitmap& bm, int quality);
 
     static SkData* EncodeData(const SkBitmap&, Type, int quality);
+
+    /**
+     *  Encode the image's pixels and return the result as a new SkData, which
+     *  the caller must manage (i.e. call unref() when they are done).
+     *
+     *  If the image type cannot be encoded, or the requested encoder type is
+     *  not supported, this will return NULL.
+     */
+    static SkData* EncodeData(const SkImage&, Type, int quality);
+
     static bool EncodeFile(const char file[], const SkBitmap&, Type,
                            int quality);
     static bool EncodeStream(SkWStream*, const SkBitmap&, Type,
                            int quality);
 
 protected:
     /**
      * Encode bitmap 'bm' in the desired format, writing results to
      * stream 'stream', at quality level 'quality' (which can be in
      * range 0-100).
@@ skipping 28 matching lines @@
 DECLARE_ENCODER_CREATOR(WEBPImageEncoder);
 
 #ifdef SK_BUILD_FOR_IOS
 DECLARE_ENCODER_CREATOR(PNGImageEncoder_IOS);
 #endif
 
 // Typedef to make registering encoder callback easier
 // This has to be defined outside SkImageEncoder. :(
 typedef SkTRegistry<SkImageEncoder*(*)(SkImageEncoder::Type)> SkImageEncoder_EncodeReg;
 #endif