//
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) Contributors to the OpenEXR Project.
//
#ifndef INCLUDED_IMF_HUF_H
#define INCLUDED_IMF_HUF_H
#include "ImfExport.h"
#include "ImfNamespace.h"
//-----------------------------------------------------------------------------
//
// 16-bit Huffman compression and decompression:
//
// hufCompress (r, nr, c)
//
// Compresses the contents of array r (of length nr),
// stores the compressed data in array c, and returns
// the size of the compressed data (in bytes).
//
// To avoid buffer overflows, the size of array c should
// be at least 2 * nr + 65536.
//
// hufUncompress (c, nc, r, nr)
//
// Uncompresses the data in array c (with length nc),
// and stores the results in array r (with length nr).
//
//-----------------------------------------------------------------------------
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
IMF_EXPORT
int
hufCompress (const unsigned short raw[/*nRaw*/],
int nRaw,
char compressed[/*2 * nRaw + 65536*/]);
IMF_EXPORT
void
hufUncompress (const char compressed[/*nCompressed*/],
int nCompressed,
unsigned short raw[/*nRaw*/],
int nRaw);
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
#endif
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