root/3rdparty/openexr/IlmImf/ImfCompression.h

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INCLUDED FROM


///////////////////////////////////////////////////////////////////////////
//
// 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
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// *       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
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// 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.
//
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///////////////////////////////////////////////////////////////////////////



#ifndef INCLUDED_IMF_COMPRESSION_H
#define INCLUDED_IMF_COMPRESSION_H

//-----------------------------------------------------------------------------
//
//      enum Compression
//
//-----------------------------------------------------------------------------

namespace Imf {


enum Compression
{
    NO_COMPRESSION  = 0,        // no compression

    RLE_COMPRESSION = 1,        // run length encoding

    ZIPS_COMPRESSION = 2,       // zlib compression, one scan line at a time

    ZIP_COMPRESSION = 3,        // zlib compression, in blocks of 16 scan lines

    PIZ_COMPRESSION = 4,        // piz-based wavelet compression

    PXR24_COMPRESSION = 5,      // lossy 24-bit float compression

    B44_COMPRESSION = 6,        // lossy 4-by-4 pixel block compression,
                    // fixed compression rate

    B44A_COMPRESSION = 7,       // lossy 4-by-4 pixel block compression,
                    // flat fields are compressed more

    NUM_COMPRESSION_METHODS     // number of different compression methods
};


} // namespace Imf

#endif

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