127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
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///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2006, Industrial Light & Magic, a division of Lucas
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// Digital Ltd. LLC
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Industrial Light & Magic nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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///////////////////////////////////////////////////////////////////////////
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#ifndef INCLUDED_IMF_B44_COMPRESSOR_H
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#define INCLUDED_IMF_B44_COMPRESSOR_H
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//-----------------------------------------------------------------------------
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//
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// class B44Compressor -- lossy compression of 4x4 pixel blocks
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//
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//-----------------------------------------------------------------------------
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#include "ImfCompressor.h"
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#include "ImfNamespace.h"
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#include "ImfExport.h"
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#include "ImfForward.h"
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OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
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class B44Compressor: public Compressor
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{
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public:
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IMF_EXPORT
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B44Compressor (const Header &hdr,
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size_t maxScanLineSize,
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size_t numScanLines,
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bool optFlatFields);
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IMF_EXPORT
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virtual ~B44Compressor ();
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IMF_EXPORT
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virtual int numScanLines () const;
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IMF_EXPORT
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virtual Format format () const;
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IMF_EXPORT
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virtual int compress (const char *inPtr,
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int inSize,
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int minY,
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const char *&outPtr);
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IMF_EXPORT
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virtual int compressTile (const char *inPtr,
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int inSize,
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IMATH_NAMESPACE::Box2i range,
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const char *&outPtr);
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IMF_EXPORT
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virtual int uncompress (const char *inPtr,
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int inSize,
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int minY,
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const char *&outPtr);
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IMF_EXPORT
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virtual int uncompressTile (const char *inPtr,
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int inSize,
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IMATH_NAMESPACE::Box2i range,
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const char *&outPtr);
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private:
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struct ChannelData;
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int compress (const char *inPtr,
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int inSize,
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IMATH_NAMESPACE::Box2i range,
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const char *&outPtr);
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int uncompress (const char *inPtr,
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int inSize,
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IMATH_NAMESPACE::Box2i range,
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const char *&outPtr);
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int _maxScanLineSize;
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bool _optFlatFields;
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Format _format;
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int _numScanLines;
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unsigned short * _tmpBuffer;
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char * _outBuffer;
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int _numChans;
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const ChannelList & _channels;
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ChannelData * _channelData;
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int _minX;
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int _maxX;
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int _maxY;
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};
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OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
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#endif
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