| /* |
| * Copyright (C) 2012 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef SKY_ENGINE_PLATFORM_GRAPHICS_DEFERREDIMAGEDECODER_H_ |
| #define SKY_ENGINE_PLATFORM_GRAPHICS_DEFERREDIMAGEDECODER_H_ |
| |
| #include "platform/image-decoders/ImageDecoder.h" |
| #include "sky/engine/platform/PlatformExport.h" |
| #include "sky/engine/platform/geometry/IntSize.h" |
| #include "sky/engine/platform/graphics/ImageFrameGenerator.h" |
| #include "sky/engine/platform/graphics/ImageSource.h" |
| #include "sky/engine/wtf/Forward.h" |
| #include "sky/engine/wtf/OwnPtr.h" |
| #include "sky/engine/wtf/Vector.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "third_party/skia/include/core/SkPixelRef.h" |
| |
| namespace blink { |
| |
| class ImageFrameGenerator; |
| class SharedBuffer; |
| |
| class PLATFORM_EXPORT DeferredImageDecoder { |
| WTF_MAKE_NONCOPYABLE(DeferredImageDecoder); |
| public: |
| ~DeferredImageDecoder(); |
| static PassOwnPtr<DeferredImageDecoder> create(const SharedBuffer& data, ImageSource::AlphaOption, ImageSource::GammaAndColorProfileOption); |
| |
| static PassOwnPtr<DeferredImageDecoder> createForTesting(PassOwnPtr<ImageDecoder>); |
| |
| static bool isLazyDecoded(const SkBitmap&); |
| |
| static void setEnabled(bool); |
| static bool enabled(); |
| |
| String filenameExtension() const; |
| |
| ImageFrame* frameBufferAtIndex(size_t index); |
| |
| void setData(SharedBuffer& data, bool allDataReceived); |
| |
| bool isSizeAvailable(); |
| bool hasColorProfile() const; |
| IntSize size() const; |
| IntSize frameSizeAtIndex(size_t index) const; |
| size_t frameCount(); |
| int repetitionCount() const; |
| size_t clearCacheExceptFrame(size_t); |
| bool frameHasAlphaAtIndex(size_t index) const; |
| bool frameIsCompleteAtIndex(size_t) const; |
| float frameDurationAtIndex(size_t) const; |
| unsigned frameBytesAtIndex(size_t index) const; |
| ImageOrientation orientation() const; |
| bool hotSpot(IntPoint&) const; |
| |
| // For testing. |
| ImageFrameGenerator* frameGenerator() { return m_frameGenerator.get(); } |
| |
| private: |
| explicit DeferredImageDecoder(PassOwnPtr<ImageDecoder> actualDecoder); |
| void prepareLazyDecodedFrames(); |
| SkBitmap createBitmap(size_t index); |
| void activateLazyDecoding(); |
| |
| RefPtr<SharedBuffer> m_data; |
| bool m_allDataReceived; |
| unsigned m_lastDataSize; |
| bool m_dataChanged; |
| OwnPtr<ImageDecoder> m_actualDecoder; |
| |
| String m_filenameExtension; |
| IntSize m_size; |
| ImageOrientation m_orientation; |
| int m_repetitionCount; |
| bool m_hasColorProfile; |
| |
| Vector<OwnPtr<ImageFrame> > m_lazyDecodedFrames; |
| RefPtr<ImageFrameGenerator> m_frameGenerator; |
| |
| static bool s_enabled; |
| }; |
| |
| } // namespace blink |
| |
| #endif // SKY_ENGINE_PLATFORM_GRAPHICS_DEFERREDIMAGEDECODER_H_ |