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Diffstat (limited to 'WebCore/platform/image-decoders/jpeg/JPEGImageDecoder.h')
-rw-r--r-- | WebCore/platform/image-decoders/jpeg/JPEGImageDecoder.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/WebCore/platform/image-decoders/jpeg/JPEGImageDecoder.h b/WebCore/platform/image-decoders/jpeg/JPEGImageDecoder.h new file mode 100644 index 0000000..57fd9da --- /dev/null +++ b/WebCore/platform/image-decoders/jpeg/JPEGImageDecoder.h @@ -0,0 +1,72 @@ +/* + * 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 JPEG_DECODER_H_ +#define JPEG_DECODER_H_ + +#include "ImageDecoder.h" + +namespace WebCore { + +class JPEGImageReader; + +// This class decodes the JPEG image format. +class JPEGImageDecoder : public ImageDecoder +{ +public: + JPEGImageDecoder(); + ~JPEGImageDecoder(); + + // 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() const; + + virtual RGBA32Buffer* frameBufferAtIndex(size_t index); + + virtual bool supportsAlpha() const { return false; } + + void decode(bool sizeOnly = false) const; + + JPEGImageReader* reader() { return m_reader; } + + void setSize(int width, int height) { + if (!m_sizeAvailable) { + m_sizeAvailable = true; + m_size = IntSize(width, height); + } + } + + bool outputScanlines(); + void jpegComplete(); + +private: + mutable JPEGImageReader* m_reader; +}; + +} + +#endif |