46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
|
/*
|
||
|
|
|
||
|
|
Copyright (c) 2011, 2012, 2013, Simon Howard
|
||
|
|
|
||
|
|
Permission to use, copy, modify, and/or distribute this software
|
||
|
|
for any purpose with or without fee is hereby granted, provided
|
||
|
|
that the above copyright notice and this permission notice appear
|
||
|
|
in all copies.
|
||
|
|
|
||
|
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
|
||
|
|
WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
|
||
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
|
||
|
|
AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
|
||
|
|
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
||
|
|
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
|
||
|
|
NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||
|
|
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
//
|
||
|
|
// Decoder for the -lhx- algorithm. Provided by Multi.
|
||
|
|
//
|
||
|
|
// -lhx- is Unlha32.dll's original extension. Some unique archivers
|
||
|
|
// support it.
|
||
|
|
//
|
||
|
|
|
||
|
|
// 128 KiB history ring buffer:
|
||
|
|
// -lhx-'s maximum dictionary size is 2^19. 2x ring buffer is required.
|
||
|
|
|
||
|
|
#define HISTORY_BITS 20 /* 2^20 = 1048576. */
|
||
|
|
|
||
|
|
// Number of bits to encode HISTORY_BITS:
|
||
|
|
|
||
|
|
#define OFFSET_BITS 5
|
||
|
|
|
||
|
|
// Name of the variable for the encoder:
|
||
|
|
|
||
|
|
#define DECODER_NAME lha_lhx_decoder
|
||
|
|
|
||
|
|
// The actual algorithm code is contained in lh_new_decoder.c, which
|
||
|
|
// acts as a template for -lh4-, -lh5-, -lh6-, -lh7- and -lhx-.
|
||
|
|
|
||
|
|
#include "lh_new_decoder.c"
|
||
|
|
|