///////////////////////////////////////////////////////////////////////////

//

// 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,

// 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 INCLUDED_IMF_PIZ_COMPRESSOR_H

#define INCLUDED_IMF_PIZ_COMPRESSOR_H

//-----------------------------------------------------------------------------

//

//	class PizCompressor -- uses Wavelet and Huffman encoding.

//

//-----------------------------------------------------------------------------

#include "ImfCompressor.h"

#include "ImfNamespace.h"

#include "ImfExport.h"

#include "ImfForward.h"

OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER

class IMF_EXPORT 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_NAMESPACE::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_NAMESPACE::Box2i range,

					const char *&outPtr);

  private:

    struct ChannelData;

    int			compress (const char *inPtr,

				  int inSize,

				  IMATH_NAMESPACE::Box2i range,

				  const char *&outPtr);

    int			uncompress (const char *inPtr,

				    int inSize,

				    IMATH_NAMESPACE::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;

};

OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT

#endif