42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
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/*
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* Copyright 2015 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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#include "SkBitmap.h"
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#include "SkBitmapRegionDecoderInterface.h"
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#include "SkImageDecoder.h"
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#include "SkTemplates.h"
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/*
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* This class aims to duplicate the current implementation of
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* SkBitmapRegionDecoder in Android.
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*/
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class SkBitmapRegionSampler : public SkBitmapRegionDecoderInterface {
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public:
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/*
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* Takes ownership of pointer to decoder
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*/
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SkBitmapRegionSampler(SkImageDecoder* decoder, int width, int height);
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/*
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* Three differences from the Android version:
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* Returns a Skia bitmap instead of an Android bitmap.
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* Android version attempts to reuse a recycled bitmap.
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* Removed the options object and used parameters for color type and
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* sample size.
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*/
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SkBitmap* decodeRegion(int start_x, int start_y, int width, int height,
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int sampleSize, SkColorType prefColorType) override;
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private:
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SkAutoTDelete<SkImageDecoder> fDecoder;
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typedef SkBitmapRegionDecoderInterface INHERITED;
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};
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