Source/OpenEXR/IlmImf/ImfZipCompressor.h

///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2002, 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,
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////



#ifndef INCLUDED_IMF_ZIP_COMPRESSOR_H
#define INCLUDED_IMF_ZIP_COMPRESSOR_H

//-----------------------------------------------------------------------------
//
//	class ZipCompressor -- performs zlib-style compression
//
//-----------------------------------------------------------------------------

#include <ImfCompressor.h>

namespace Imf {


class ZipCompressor: public Compressor
{
  public:

    ZipCompressor (const Header &hdr, int maxScanLineSize, int numScanLines);
    virtual ~ZipCompressor ();

    virtual int numScanLines () const;

    virtual int	compress (const char *inPtr,
			  int inSize,
			  int minY,
			  const char *&outPtr);

    virtual int	uncompress (const char *inPtr,
			    int inSize,
			    int minY,
			    const char *&outPtr);
  private:

    int		_maxScanLineSize;
    int		_numScanLines;
    char *	_tmpBuffer;
    char *	_outBuffer;
};


} // namespace Imf

#endif