/* * Copyright (C) 2006 Apple Computer, 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 PNGImageDecoder_h #define PNGImageDecoder_h #include "ImageDecoder.h" namespace WebCore { class PNGImageReader; // This class decodes the PNG image format. class PNGImageDecoder : public ImageDecoder { public: PNGImageDecoder(); ~PNGImageDecoder(); virtual String filenameExtension() const { return "png"; } // Take the data and store it. virtual void setData(SharedBuffer* data, bool allDataReceived); // Whether or not the size information has been decoded yet. virtual bool isSizeAvailable(); virtual RGBA32Buffer* frameBufferAtIndex(size_t index); void decode(bool sizeOnly = false); PNGImageReader* reader() { return m_reader; } // Callbacks from libpng void decodingFailed(); void headerAvailable(); void rowAvailable(unsigned char* rowBuffer, unsigned rowIndex, int interlacePass); void pngComplete(); private: PNGImageReader* m_reader; }; } // namespace WebCore #endif