skia2/tools/SkBitmapRegionCodec.h
2015-10-22 07:29:19 -07:00

42 lines
1.1 KiB
C++

/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmap.h"
#include "SkBitmapRegionDecoderInterface.h"
#include "SkAndroidCodec.h"
/*
* This class implements SkBitmapRegionDecoder using an SkAndroidCodec.
*/
class SkBitmapRegionCodec : public SkBitmapRegionDecoderInterface {
public:
/*
* Takes ownership of pointer to codec
*/
SkBitmapRegionCodec(SkAndroidCodec* codec);
/*
* Three differences from the Android version:
* Returns a Skia bitmap instead of an Android bitmap.
* Android version attempts to reuse a recycled bitmap.
* Removed the options object and used parameters for color type and
* sample size.
*/
SkBitmap* decodeRegion(int start_x, int start_y, int width, int height,
int sampleSize, SkColorType prefColorType) override;
bool conversionSupported(SkColorType colorType) override;
private:
SkAutoTDelete<SkAndroidCodec> fCodec;
typedef SkBitmapRegionDecoderInterface INHERITED;
};