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cs440-acg/ext/openexr/OpenEXR/IlmImf/ImfCompression.h

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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