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/*
* Copyright (C) 2010 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 WEBPImageDecoder_h
#define WEBPImageDecoder_h
#include "ImageDecoder.h"
#if USE(WEBP)
// Forward declaration of libwebp's structure. Must be outside the WebCore scope.
typedef struct WebPIDecoder WebPIDecoder;
namespace WebCore {
class WEBPImageDecoder : public ImageDecoder {
public:
WEBPImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfileOption);
virtual ~WEBPImageDecoder();
virtual String filenameExtension() const { return "vp8"; }
virtual bool isSizeAvailable();
virtual ImageFrame* frameBufferAtIndex(size_t index);
private:
// Returns false in case of decoding failure.
bool decode(bool onlySize);
WebPIDecoder* m_decoder; // This is only used when we want to decode() but not all data is available yet.
int m_lastVisibleRow;
Vector<uint8_t> m_rgbOutput;
};
} // namespace WebCore
#endif
#endif
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