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- ///////////////////////////////////////////////////////////////////////////
- //
- // 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_COMPRESSION_H
- #define INCLUDED_IMF_COMPRESSION_H
- //-----------------------------------------------------------------------------
- //
- // enum Compression
- //
- //-----------------------------------------------------------------------------
- #include "ImfNamespace.h"
- OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
- 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
- DWAA_COMPRESSION = 8, // lossy DCT based compression, in blocks
- // of 32 scanlines. More efficient for partial
- // buffer access.
- DWAB_COMPRESSION = 9, // lossy DCT based compression, in blocks
- // of 256 scanlines. More efficient space
- // wise and faster to decode full frames
- // than DWAA_COMPRESSION.
- NUM_COMPRESSION_METHODS // number of different compression methods
- };
- OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
- #endif
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