1 /* 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. 3 * Copyright (C) 2008-2009 Torch Mobile, Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef JPEGImageDecoder_h 28 #define JPEGImageDecoder_h 29 30 #include "ImageDecoder.h" 31 #include <wtf/OwnPtr.h> 32 33 namespace WebCore { 34 35 class JPEGImageReader; 36 37 // This class decodes the JPEG image format. 38 class JPEGImageDecoder : public ImageDecoder { 39 public: 40 JPEGImageDecoder(); 41 ~JPEGImageDecoder(); 42 43 virtual String filenameExtension() const { return "jpg"; } 44 45 // Take the data and store it. 46 virtual void setData(SharedBuffer* data, bool allDataReceived); 47 48 // Whether or not the size information has been decoded yet. 49 virtual bool isSizeAvailable(); 50 51 virtual bool setSize(unsigned width, unsigned height); 52 53 virtual RGBA32Buffer* frameBufferAtIndex(size_t index); 54 55 virtual bool supportsAlpha() const { return false; } 56 57 void decode(bool sizeOnly = false); 58 59 bool outputScanlines(); 60 void jpegComplete(); 61 62 private: 63 OwnPtr<JPEGImageReader> m_reader; 64 }; 65 66 } // namespace WebCore 67 68 #endif 69
