From 30bf0f51335e87812ffeb54e9437f0b6a1514d67 Mon Sep 17 00:00:00 2001 From: "Juan J. Martinez" Date: Tue, 6 Sep 2022 07:37:20 +0100 Subject: Updated rasm to 1.7 --- tools/rasm/lzsa-master/src/shrink_block_v2.h | 53 ++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 tools/rasm/lzsa-master/src/shrink_block_v2.h (limited to 'tools/rasm/lzsa-master/src/shrink_block_v2.h') diff --git a/tools/rasm/lzsa-master/src/shrink_block_v2.h b/tools/rasm/lzsa-master/src/shrink_block_v2.h new file mode 100644 index 0000000..4a83608 --- /dev/null +++ b/tools/rasm/lzsa-master/src/shrink_block_v2.h @@ -0,0 +1,53 @@ +/* + * shrink_block_v2.h - LZSA2 block compressor definitions + * + * Copyright (C) 2019 Emmanuel Marty + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * 3. This notice may not be removed or altered from any source distribution. + */ + +/* + * Uses the libdivsufsort library Copyright (c) 2003-2008 Yuta Mori + * + * Inspired by LZ4 by Yann Collet. https://github.com/lz4/lz4 + * With help, ideas, optimizations and speed measurements by spke + * With ideas from Lizard by Przemyslaw Skibinski and Yann Collet. https://github.com/inikep/lizard + * Also with ideas from smallz4 by Stephan Brumme. https://create.stephan-brumme.com/smallz4/ + * + */ + +#ifndef _SHRINK_BLOCK_V2_H +#define _SHRINK_BLOCK_V2_H + +/* Forward declarations */ +typedef struct _lzsa_compressor lzsa_compressor; + +/** + * Select the most optimal matches, reduce the token count if possible, and then emit a block of compressed LZSA2 data + * + * @param pCompressor compression context + * @param pInWindow pointer to input data window (previously compressed bytes + bytes to compress) + * @param nPreviousBlockSize number of previously compressed bytes (or 0 for none) + * @param nInDataSize number of input bytes to compress + * @param pOutData pointer to output buffer + * @param nMaxOutDataSize maximum size of output buffer, in bytes + * + * @return size of compressed data in output buffer, or -1 if the data is uncompressible + */ +int lzsa_optimize_and_write_block_v2(lzsa_compressor *pCompressor, const unsigned char *pInWindow, const int nPreviousBlockSize, const int nInDataSize, unsigned char *pOutData, const int nMaxOutDataSize); + +#endif /* _SHRINK_BLOCK_V2_H */ -- cgit v1.2.3