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| 1 /* | |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
| 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
| 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef DecodingImageGenerator_h | |
| 27 #define DecodingImageGenerator_h | |
| 28 | |
| 29 #include "SkImageGenerator.h" | |
| 30 #include "SkImageInfo.h" | |
| 31 | |
| 32 #include "wtf/RefPtr.h" | |
| 33 | |
| 34 class SkData; | |
| 35 | |
| 36 namespace WebCore { | |
| 37 | |
| 38 class ImageFrameGenerator; | |
| 39 | |
| 40 // Implements SkImageGenerator and used by SkPixelRef to populate a discardable | |
| 41 // memory with decoded pixels. | |
| 42 // | |
| 43 // This class does not own an ImageDecode. It does not own encoded data. It serv
es | |
| 44 // as and adapter to ImageFrameGenerator which actually performs decoding. | |
| 45 class DecodingImageGenerator : public SkImageGenerator { | |
| 46 public: | |
| 47 DecodingImageGenerator(PassRefPtr<ImageFrameGenerator>, const SkImageInfo&,
size_t index); | |
| 48 virtual ~DecodingImageGenerator(); | |
| 49 | |
| 50 // SkImageGenerator implementation. | |
| 51 virtual SkData* refEncodedData(); | |
| 52 virtual bool getInfo(SkImageInfo*); | |
| 53 virtual bool getPixels(const SkImageInfo&, void* pixels, size_t rowBytes); | |
| 54 | |
| 55 private: | |
| 56 RefPtr<ImageFrameGenerator> m_frameGenerator; | |
| 57 SkImageInfo m_imageInfo; | |
| 58 size_t m_frameIndex; | |
| 59 }; | |
| 60 | |
| 61 } // namespace WebCore | |
| 62 | |
| 63 #endif // DecodingImageGenerator_h_ | |
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Chromium Code Reviews
Issue 105003005:
Revert of Teach Skia to use discardable memory (Closed)
Base URL: svn://svn.chromium.org/blink/trunk