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      1 
      2 /*
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 #ifndef SkImageEncoder_DEFINED
      9 #define SkImageEncoder_DEFINED
     10 
     11 #include "SkTypes.h"
     12 
     13 class SkBitmap;
     14 class SkWStream;
     15 
     16 class SkImageEncoder {
     17 public:
     18     enum Type {
     19         kJPEG_Type,
     20         kPNG_Type,
     21         kWEBP_Type
     22     };
     23     static SkImageEncoder* Create(Type);
     24 
     25     virtual ~SkImageEncoder();
     26 
     27     /*  Quality ranges from 0..100 */
     28     enum {
     29         kDefaultQuality = 80
     30     };
     31 
     32     bool encodeFile(const char file[], const SkBitmap&, int quality);
     33     bool encodeStream(SkWStream*, const SkBitmap&, int quality);
     34 
     35     static bool EncodeFile(const char file[], const SkBitmap&, Type,
     36                            int quality);
     37     static bool EncodeStream(SkWStream*, const SkBitmap&, Type,
     38                            int quality);
     39 
     40 protected:
     41     virtual bool onEncode(SkWStream*, const SkBitmap&, int quality) = 0;
     42 };
     43 
     44 #endif
     45