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/*
* 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"
class SkBitmap;
class SkWStream;
class SkImageEncoder {
public:
enum Type {
kJPEG_Type,
kPNG_Type
};
static SkImageEncoder* Create(Type);
virtual ~SkImageEncoder();
/* Quality ranges from 0..100 */
enum {
kDefaultQuality = 80
};
bool encodeFile(const char file[], const SkBitmap&, int quality);
bool encodeStream(SkWStream*, const SkBitmap&, int quality);
static bool EncodeFile(const char file[], const SkBitmap&, Type,
int quality);
static bool EncodeStream(SkWStream*, const SkBitmap&, Type,
int quality);
protected:
virtual bool onEncode(SkWStream*, const SkBitmap&, int quality) = 0;
};
// This macro declares a global (i.e., non-class owned) creation entry point
// for each encoder (e.g., CreateJPEGImageEncoder)
#define DECLARE_ENCODER_CREATOR(codec) \
SkImageEncoder *Create ## codec ();
// This macro defines the global creation entry point for each encoder. Each
// encoder implementation that registers with the encoder factory must call it.
#define DEFINE_ENCODER_CREATOR(codec) \
SkImageEncoder *Create ## codec () { \
return SkNEW( Sk ## codec ); \
}
// All the encoders known by Skia. Note that, depending on the compiler settings,
// not all of these will be available
DECLARE_ENCODER_CREATOR(JPEGImageEncoder);
DECLARE_ENCODER_CREATOR(PNGImageEncoder);
#endif
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