ec51cb8634
http://codereview.appspot.com/5881055/ git-svn-id: http://skia.googlecode.com/svn/trunk@3481 2bbb7eff-a529-9590-31e7-b0007b416f81
61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkImageEncoder_DEFINED
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#define SkImageEncoder_DEFINED
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#include "SkTypes.h"
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class SkBitmap;
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class SkWStream;
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class SkImageEncoder {
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public:
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enum Type {
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kJPEG_Type,
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kPNG_Type
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};
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static SkImageEncoder* Create(Type);
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virtual ~SkImageEncoder();
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/* Quality ranges from 0..100 */
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enum {
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kDefaultQuality = 80
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};
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bool encodeFile(const char file[], const SkBitmap&, int quality);
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bool encodeStream(SkWStream*, const SkBitmap&, int quality);
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static bool EncodeFile(const char file[], const SkBitmap&, Type,
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int quality);
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static bool EncodeStream(SkWStream*, const SkBitmap&, Type,
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int quality);
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protected:
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virtual bool onEncode(SkWStream*, const SkBitmap&, int quality) = 0;
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};
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// This macro declares a global (i.e., non-class owned) creation entry point
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// for each encoder (e.g., CreateJPEGImageEncoder)
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#define DECLARE_ENCODER_CREATOR(codec) \
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SkImageEncoder *Create ## codec ();
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// This macro defines the global creation entry point for each encoder. Each
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// encoder implementation that registers with the encoder factory must call it.
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#define DEFINE_ENCODER_CREATOR(codec) \
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SkImageEncoder *Create ## codec () { \
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return SkNEW( Sk ## codec ); \
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}
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// All the encoders known by Skia. Note that, depending on the compiler settings,
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// not all of these will be available
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DECLARE_ENCODER_CREATOR(JPEGImageEncoder);
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DECLARE_ENCODER_CREATOR(PNGImageEncoder);
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#endif
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