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e0fd75b5ab
This caused us to lose our gn check certification. :( Turns out gn check was just ignoring all the header paths it didn't understand and so gn check passing for sky wasn't meaning much. I tried to straighten out some of the mess in this CL, but its going to take several more rounds of massaging before gn check passes again. On the bright side (almost) all of our headers are absolute now. Turns out my script (attached to the bug) didn't notice ../ includes but I'll fix that in the next patch. R=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/746023002
127 lines
4.9 KiB
C++
127 lines
4.9 KiB
C++
/*
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ImageFrameGenerator_h
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#define ImageFrameGenerator_h
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#include "sky/engine/platform/PlatformExport.h"
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#include "sky/engine/platform/graphics/ThreadSafeDataTransport.h"
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#include "sky/engine/wtf/PassOwnPtr.h"
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#include "sky/engine/wtf/PassRefPtr.h"
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#include "sky/engine/wtf/RefCounted.h"
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#include "sky/engine/wtf/RefPtr.h"
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#include "sky/engine/wtf/ThreadSafeRefCounted.h"
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#include "sky/engine/wtf/ThreadingPrimitives.h"
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#include "sky/engine/wtf/Vector.h"
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#include "third_party/skia/include/core/SkBitmap.h"
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#include "third_party/skia/include/core/SkSize.h"
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#include "third_party/skia/include/core/SkTypes.h"
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namespace blink {
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class ImageDecoder;
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class ImagePlanes;
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class SharedBuffer;
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class PLATFORM_EXPORT ImageDecoderFactory {
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WTF_MAKE_NONCOPYABLE(ImageDecoderFactory);
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public:
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ImageDecoderFactory() {}
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virtual ~ImageDecoderFactory() { }
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virtual PassOwnPtr<ImageDecoder> create() = 0;
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};
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class PLATFORM_EXPORT ImageFrameGenerator : public ThreadSafeRefCounted<ImageFrameGenerator> {
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WTF_MAKE_NONCOPYABLE(ImageFrameGenerator);
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public:
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static PassRefPtr<ImageFrameGenerator> create(const SkISize& fullSize, PassRefPtr<SharedBuffer> data, bool allDataReceived, bool isMultiFrame = false)
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{
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return adoptRef(new ImageFrameGenerator(fullSize, data, allDataReceived, isMultiFrame));
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}
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ImageFrameGenerator(const SkISize& fullSize, PassRefPtr<SharedBuffer>, bool allDataReceived, bool isMultiFrame);
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~ImageFrameGenerator();
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// Decodes and scales the specified frame indicated by |index|. Dimensions
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// and output format are specified in |info|. Decoded pixels are written
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// into |pixels| with a stride of |rowBytes|.
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//
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// Returns true if decoding was successful.
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bool decodeAndScale(const SkImageInfo&, size_t index, void* pixels, size_t rowBytes);
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// Decodes YUV components directly into the provided memory planes.
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bool decodeToYUV(void* planes[3], size_t rowBytes[3]);
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void setData(PassRefPtr<SharedBuffer>, bool allDataReceived);
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// Creates a new SharedBuffer containing the data received so far.
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void copyData(RefPtr<SharedBuffer>*, bool* allDataReceived);
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SkISize getFullSize() const { return m_fullSize; }
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bool isMultiFrame() const { return m_isMultiFrame; }
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// FIXME: Return alpha state for each frame.
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bool hasAlpha(size_t);
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bool getYUVComponentSizes(SkISize componentSizes[3]);
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private:
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class ExternalMemoryAllocator;
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friend class ImageFrameGeneratorTest;
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friend class DeferredImageDecoderTest;
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// For testing. |factory| will overwrite the default ImageDecoder creation logic if |factory->create()| returns non-zero.
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void setImageDecoderFactory(PassOwnPtr<ImageDecoderFactory> factory) { m_imageDecoderFactory = factory; }
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void setHasAlpha(size_t index, bool hasAlpha);
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// These methods are called while m_decodeMutex is locked.
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SkBitmap tryToResumeDecode(const SkISize& scaledSize, size_t index);
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// Use the given decoder to decode. If a decoder is not given then try to create one.
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// Returns true if decoding was complete.
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bool decode(size_t index, ImageDecoder**, SkBitmap*);
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SkISize m_fullSize;
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ThreadSafeDataTransport m_data;
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bool m_isMultiFrame;
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bool m_decodeFailedAndEmpty;
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Vector<bool> m_hasAlpha;
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int m_decodeCount;
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OwnPtr<ExternalMemoryAllocator> m_externalAllocator;
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OwnPtr<ImageDecoderFactory> m_imageDecoderFactory;
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// Prevents multiple decode operations on the same data.
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Mutex m_decodeMutex;
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// Protect concurrent access to m_hasAlpha.
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Mutex m_alphaMutex;
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};
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} // namespace blink
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#endif
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