///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Industrial Light & Magic nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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//
///////////////////////////////////////////////////////////////////////////
#ifndef INCLUDED_IMF_PIZ_COMPRESSOR_H
#define INCLUDED_IMF_PIZ_COMPRESSOR_H
//-----------------------------------------------------------------------------
//
// class PizCompressor -- uses Wavelet and Huffman encoding.
//
//-----------------------------------------------------------------------------
#include <ImfCompressor.h>
namespace Imf {
class ChannelList;
class PizCompressor: public Compressor
{
public:
PizCompressor (const Header &hdr,
size_t maxScanLineSize,
size_t numScanLines);
virtual ~PizCompressor ();
virtual int numScanLines () const;
virtual Format format () const;
virtual int compress (const char *inPtr,
int inSize,
int minY,
const char *&outPtr);
virtual int compressTile (const char *inPtr,
int inSize,
Imath::Box2i range,
const char *&outPtr);
virtual int uncompress (const char *inPtr,
int inSize,
int minY,
const char *&outPtr);
virtual int uncompressTile (const char *inPtr,
int inSize,
Imath::Box2i range,
const char *&outPtr);
private:
struct ChannelData;
int compress (const char *inPtr,
int inSize,
Imath::Box2i range,
const char *&outPtr);
int uncompress (const char *inPtr,
int inSize,
Imath::Box2i range,
const char *&outPtr);
int _maxScanLineSize;
Format _format;
int _numScanLines;
unsigned short * _tmpBuffer;
char * _outBuffer;
int _numChans;
const ChannelList & _channels;
ChannelData * _channelData;
int _minX;
int _maxX;
int _maxY;
};
} // namespace Imf
#endif