1/* 2 * Copyright (C) 2010 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 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef WEBPImageDecoder_h 30#define WEBPImageDecoder_h 31 32#include "ImageDecoder.h" 33 34#if USE(WEBP) 35 36#include "webp/decode.h" 37#if USE(QCMSLIB) && (WEBP_DECODER_ABI_VERSION > 0x200) 38#define QCMS_WEBP_COLOR_CORRECTION 39#endif 40 41namespace WebCore { 42 43class WEBPImageDecoder : public ImageDecoder { 44public: 45 WEBPImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfileOption); 46 virtual ~WEBPImageDecoder(); 47 48 virtual String filenameExtension() const { return "webp"; } 49 virtual bool isSizeAvailable(); 50 virtual ImageFrame* frameBufferAtIndex(size_t index); 51 52private: 53 bool decode(bool onlySize); 54 55 WebPIDecoder* m_decoder; 56 bool m_hasAlpha; 57 int m_formatFlags; 58 59#ifdef QCMS_WEBP_COLOR_CORRECTION 60 qcms_transform* colorTransform() const { return m_transform; } 61 void createColorTransform(const char* data, size_t); 62 void readColorProfile(const uint8_t* data, size_t); 63 void applyColorProfile(const uint8_t* data, size_t, ImageFrame&); 64 65 bool m_haveReadProfile; 66 qcms_transform* m_transform; 67 int m_decodedHeight; 68#else 69 void applyColorProfile(const uint8_t*, size_t, ImageFrame&) { }; 70#endif 71 void clear(); 72}; 73 74} // namespace WebCore 75 76#endif 77 78#endif 79