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cmcompress: Delete unused 3rdParty module

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This commit is contained in:
Regina Pfeifer
2019-02-24 22:18:11 +01:00
parent d930e8c043
commit b5a69c6279
7 changed files with 1 additions and 2103 deletions
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8
CMakeLists.txt
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@@ -444,14 +444,6 @@ macro (CMAKE_BUILD_UTILITIES)
CMAKE_SET_TARGET_FOLDER(LIBCURL "Utilities/3rdParty")
endif()
#---------------------------------------------------------------------
# Build Compress library for CTest.
set(CMAKE_COMPRESS_INCLUDES
"${CMAKE_CURRENT_BINARY_DIR}/Utilities/cmcompress")
set(CMAKE_COMPRESS_LIBRARIES "cmcompress")
add_subdirectory(Utilities/cmcompress)
CMAKE_SET_TARGET_FOLDER(cmcompress "Utilities/3rdParty")
#---------------------------------------------------------------------
# Build expat library for CMake, CTest, and libarchive.
if(CMAKE_USE_SYSTEM_EXPAT)

3
Source/CMakeLists.txt
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@@ -92,7 +92,6 @@ include_directories(
${CMAKE_ZLIB_INCLUDES}
${CMAKE_EXPAT_INCLUDES}
${CMAKE_TAR_INCLUDES}
${CMAKE_COMPRESS_INCLUDES}
${CMake_HAIKU_INCLUDE_DIRS}
)
@@ -801,7 +800,7 @@ endforeach()
add_library(CMakeLib ${SRCS})
target_link_libraries(CMakeLib cmsys
${CMAKE_EXPAT_LIBRARIES} ${CMAKE_ZLIB_LIBRARIES}
${CMAKE_TAR_LIBRARIES} ${CMAKE_COMPRESS_LIBRARIES}
${CMAKE_TAR_LIBRARIES}
${CMAKE_CURL_LIBRARIES}
${CMAKE_JSONCPP_LIBRARIES}
${CMAKE_LIBUV_LIBRARIES}

5
Utilities/cmcompress/CMakeLists.txt
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@@ -1,5 +0,0 @@
PROJECT(CMCompress)
ADD_LIBRARY(cmcompress cmcompress.c)
INSTALL(FILES Copyright.txt DESTINATION ${CMAKE_DOC_DIR}/cmcompress)

34
Utilities/cmcompress/Copyright.txt
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@@ -1,34 +0,0 @@
Copyright (c) 1985, 1986 The Regents of the University of California.
All rights reserved.
This code is derived from software contributed to Berkeley by
James A. Woods, derived from original work by Spencer Thomas
and Joseph Orost.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. 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.
3. All advertising materials mentioning features or use of this software
must display the following acknowledgement:
This product includes software developed by the University of
California, Berkeley and its contributors.
4. Neither the name of the University 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 REGENTS 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 REGENTS 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.

551
Utilities/cmcompress/cmcompress.c
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@@ -1,551 +0,0 @@
/*
* Copyright (c) 1985, 1986 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* James A. Woods, derived from original work by Spencer Thomas
* and Joseph Orost.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*/
#include "cmcompress.h"
#include <errno.h>
#include <string.h>
static const char_type magic_header[] = { "\037\235" }; /* 1F 9D */
/* Defines for third byte of header */
#define BIT_MASK 0x1f
#define BLOCK_MASK 0x80
#define CHECK_GAP 10000 /* ratio check interval */
/* Masks 0x40 and 0x20 are free. I think 0x20 should mean that there is
a fourth header byte (for expansion).
*/
#define INIT_BITS 9 /* initial number of bits/code */
#ifdef COMPATIBLE /* But wrong! */
# define MAXCODE(n_bits) (1 << (n_bits) - 1)
#else
# define MAXCODE(n_bits) ((1 << (n_bits)) - 1)
#endif /* COMPATIBLE */
#define htabof(i) cdata->htab[i]
#define codetabof(i) cdata->codetab[i]
/*
* the next two codes should not be changed lightly, as they must not
* lie within the contiguous general code space.
*/
#define FIRST 257 /* first free entry */
#define CLEAR 256 /* table clear output code */
#ifdef DEBUG
static void prratio( FILE *stream, long int num, long int den);
#endif
int cmcompress_compress_initialize(struct cmcompress_stream* cdata)
{
cdata->maxbits = BITS; /* user settable max # bits/code */
cdata->maxmaxcode = 1 << BITS; /* should NEVER generate this code */
cdata->hsize = HSIZE; /* for dynamic table sizing */
cdata->free_ent = 0; /* first unused entry */
cdata->nomagic = 0; /* Use a 3-byte magic number header, unless old file */
cdata->block_compress = BLOCK_MASK;
cdata->clear_flg = 0;
cdata->ratio = 0;
cdata->checkpoint = CHECK_GAP;
cdata->input_stream = 0;
cdata->output_stream = 0;
cdata->client_data = 0;
return 1;
}
static void cl_hash(struct cmcompress_stream* cdata, count_int hsize) /* reset code table */
{
register count_int *htab_p = cdata->htab+hsize;
register long i;
register long m1 = -1;
i = hsize - 16;
do
{ /* might use Sys V memset(3) here */
*(htab_p-16) = m1;
*(htab_p-15) = m1;
*(htab_p-14) = m1;
*(htab_p-13) = m1;
*(htab_p-12) = m1;
*(htab_p-11) = m1;
*(htab_p-10) = m1;
*(htab_p-9) = m1;
*(htab_p-8) = m1;
*(htab_p-7) = m1;
*(htab_p-6) = m1;
*(htab_p-5) = m1;
*(htab_p-4) = m1;
*(htab_p-3) = m1;
*(htab_p-2) = m1;
*(htab_p-1) = m1;
htab_p -= 16;
}
while ((i -= 16) >= 0);
for ( i += 16; i > 0; i-- )
{
*--htab_p = m1;
}
}
/*-
* Output the given code.
* Inputs:
* code: A n_bits-bit integer. If == -1, then EOF. This assumes
* that n_bits =< (long)wordsize - 1.
* Outputs:
* Outputs code to the file.
* Assumptions:
* Chars are 8 bits long.
* Algorithm:
* Maintain a BITS character long buffer (so that 8 codes will
* fit in it exactly). Use the VAX insv instruction to insert each
* code in turn. When the buffer fills up empty it and start over.
*/
static char buf[BITS];
#ifndef vax
char_type lmask[9] = {0xff, 0xfe, 0xfc, 0xf8, 0xf0, 0xe0, 0xc0, 0x80, 0x00};
char_type rmask[9] = {0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff};
#endif /* vax */
static int output(struct cmcompress_stream* cdata, code_int code)
{
#ifdef DEBUG
static int col = 0;
#endif /* DEBUG */
/*
* On the VAX, it is important to have the register declarations
* in exactly the order given, or the asm will break.
*/
register int r_off = cdata->offset, bits= cdata->n_bits;
register char * bp = buf;
#ifdef DEBUG
if ( verbose )
{
fprintf( stderr, "%5d%c", code,
(col+=6) >= 74 ? (col = 0, '\n') : ' ' );
}
#endif /* DEBUG */
if ( code >= 0 )
{
#if defined(vax) && !defined(__GNUC__)
/*
* VAX and PCC DEPENDENT!! Implementation on other machines is
* below.
*
* Translation: Insert BITS bits from the argument starting at
* cdata->offset bits from the beginning of buf.
*/
0; /* Work around for pcc -O bug with asm and if stmt */
asm( "insv 4(ap),r11,r10,(r9)" );
#else
/*
* byte/bit numbering on the VAX is simulated by the following code
*/
/*
* Get to the first byte.
*/
bp += (r_off >> 3);
r_off &= 7;
/*
* Since code is always >= 8 bits, only need to mask the first
* hunk on the left.
*/
*bp = (char)((*bp & rmask[r_off]) | ((code << r_off) & lmask[r_off]));
bp++;
bits -= (8 - r_off);
code >>= 8 - r_off;
/* Get any 8 bit parts in the middle (<=1 for up to 16 bits). */
if ( bits >= 8 )
{
*bp++ = (char)(code);
code >>= 8;
bits -= 8;
}
/* Last bits. */
if(bits)
{
*bp = (char)(code);
}
#endif /* vax */
cdata->offset += cdata->n_bits;
if ( cdata->offset == (cdata->n_bits << 3) )
{
bp = buf;
bits = cdata->n_bits;
cdata->bytes_out += bits;
do
{
if ( cdata->output_stream(cdata, bp, 1) != 1 )
{
return 0;
}
bp++;
}
while(--bits);
cdata->offset = 0;
}
/*
* If the next entry is going to be too big for the code size,
* then increase it, if possible.
*/
if ( cdata->free_ent > cdata->maxcode || (cdata->clear_flg > 0))
{
/*
* Write the whole buffer, because the input side won't
* discover the size increase until after it has read it.
*/
if ( cdata->offset > 0 )
{
if ( cdata->output_stream(cdata, buf, cdata->n_bits) != cdata->n_bits )
{
return 0;
}
cdata->bytes_out += cdata->n_bits;
}
cdata->offset = 0;
if ( cdata->clear_flg )
{
cdata->maxcode = MAXCODE (cdata->n_bits = INIT_BITS);
cdata->clear_flg = 0;
}
else
{
cdata->n_bits++;
if ( cdata->n_bits == cdata->maxbits )
{
cdata->maxcode = cdata->maxmaxcode;
}
else
{
cdata->maxcode = MAXCODE(cdata->n_bits);
}
}
#ifdef DEBUG
if ( debug )
{
fprintf( stderr, "\nChange to %d bits\n", cdata->n_bits );
col = 0;
}
#endif /* DEBUG */
}
}
else
{
/*
* At EOF, write the rest of the buffer.
*/
if ( cdata->offset > 0 )
{
cdata->offset = (cdata->offset + 7) / 8;
if ( cdata->output_stream(cdata, buf, cdata->offset ) != cdata->offset )
{
return 0;
}
cdata->bytes_out += cdata->offset;
}
cdata->offset = 0;
(void)fflush( stdout );
if( ferror( stdout ) )
{
return 0;
}
#ifdef DEBUG
if ( verbose )
{
fprintf( stderr, "\n" );
}
#endif
}
return 1;
}
/*
* compress stdin to stdout
*
* Algorithm: use open addressing double hashing (no chaining) on the
* prefix code / next character combination. We do a variant of Knuth's
* algorithm D (vol. 3, sec. 6.4) along with G. Knott's relatively-prime
* secondary probe. Here, the modular division first probe is gives way
* to a faster exclusive-or manipulation. Also do block compression with
* an adaptive reset, whereby the code table is cleared when the compression
* ratio decreases, but after the table fills. The variable-length output
* codes are re-sized at this point, and a special CLEAR code is generated
* for the decompressor. Late addition: construct the table according to
* file size for noticeable speed improvement on small files. Please direct
* questions about this implementation to ames!jaw.
*/
int cmcompress_compress_start(struct cmcompress_stream* cdata)
{
#ifndef COMPATIBLE
if (cdata->nomagic == 0)
{
char headLast = (char)(cdata->maxbits | cdata->block_compress);
cdata->output_stream(cdata, (const char*)magic_header, 2);
cdata->output_stream(cdata, &headLast, 1);
if(ferror(stdout))
{
printf("Error...\n");
}
}
#endif /* COMPATIBLE */
cdata->offset = 0;
cdata->bytes_out = 3; /* includes 3-byte header mojo */
cdata->out_count = 0;
cdata->clear_flg = 0;
cdata->ratio = 0;
cdata->in_count = 1;
cdata->checkpoint = CHECK_GAP;
cdata->maxcode = MAXCODE(cdata->n_bits = INIT_BITS);
cdata->free_ent = ((cdata->block_compress) ? FIRST : 256 );
cdata->first_pass = 1;
cdata->hshift = 0;
for ( cdata->fcode = (long) cdata->hsize; cdata->fcode < 65536L; cdata->fcode *= 2L )
{
cdata->hshift++;
}
cdata->hshift = 8 - cdata->hshift; /* set hash code range bound */
cdata->hsize_reg = cdata->hsize;
cl_hash(cdata, (count_int) cdata->hsize_reg); /* clear hash table */
return 1;
}
static int cl_block (struct cmcompress_stream* cdata) /* table clear for block compress */
{
register long int rat;
cdata->checkpoint = cdata->in_count + CHECK_GAP;
#ifdef DEBUG
if ( cdata->debug )
{
fprintf ( stderr, "count: %ld, ratio: ", cdata->in_count );
prratio ( stderr, cdata->in_count, cdata->bytes_out );
fprintf ( stderr, "\n");
}
#endif /* DEBUG */
if(cdata->in_count > 0x007fffff)
{ /* shift will overflow */
rat = cdata->bytes_out >> 8;
if(rat == 0)
{ /* Don't divide by zero */
rat = 0x7fffffff;
}
else
{
rat = cdata->in_count / rat;
}
}
else
{
rat = (cdata->in_count << 8) / cdata->bytes_out; /* 8 fractional bits */
}
if ( rat > cdata->ratio )
{
cdata->ratio = rat;
}
else
{
cdata->ratio = 0;
#ifdef DEBUG
if(cdata->verbose)
{
dump_tab(); /* dump string table */
}
#endif
cl_hash (cdata, (count_int) cdata->hsize );
cdata->free_ent = FIRST;
cdata->clear_flg = 1;
if ( !output (cdata, (code_int) CLEAR ) )
{
return 0;
}
#ifdef DEBUG
if(cdata->debug)
{
fprintf ( stderr, "clear\n" );
}
#endif /* DEBUG */
}
return 1;
}
int cmcompress_compress(struct cmcompress_stream* cdata, void* buff, size_t n)
{
register code_int i;
register int c;
register int disp;
unsigned char* input_buffer = (unsigned char*)buff;
size_t cc;
/*printf("cmcompress_compress(%p, %p, %d)\n", cdata, buff, n);*/
if ( cdata->first_pass )
{
cdata->ent = input_buffer[0];
++ input_buffer;
-- n;
cdata->first_pass = 0;
}
for ( cc = 0; cc < n; ++ cc )
{
c = input_buffer[cc];
cdata->in_count++;
cdata->fcode = (long) (((long) c << cdata->maxbits) + cdata->ent);
i = ((c << cdata->hshift) ^ cdata->ent); /* xor hashing */
if ( htabof (i) == cdata->fcode )
{
cdata->ent = codetabof (i);
continue;
}
else if ( (long)htabof (i) < 0 ) /* empty slot */
{
goto nomatch;
}
disp = (int)(cdata->hsize_reg - i); /* secondary hash (after G. Knott) */
if ( i == 0 )
{
disp = 1;
}
probe:
if ( (i -= disp) < 0 )
{
i += cdata->hsize_reg;
}
if ( htabof (i) == cdata->fcode )
{
cdata->ent = codetabof (i);
continue;
}
if ( (long)htabof (i) > 0 )
{
goto probe;
}
nomatch:
if ( !output(cdata, (code_int) cdata->ent ) )
{
return 0;
}
cdata->out_count++;
cdata->ent = c;
if (
#ifdef SIGNED_COMPARE_SLOW
(unsigned) cdata->free_ent < (unsigned) cdata->maxmaxcode
#else
cdata->free_ent < cdata->maxmaxcode
#endif
)
{
codetabof (i) = (unsigned short)(cdata->free_ent++); /* code -> hashtable */
htabof (i) = cdata->fcode;
}
else if ( (count_int)cdata->in_count >= cdata->checkpoint && cdata->block_compress )
{
if ( !cl_block (cdata) )
{
return 0;
}
}
}
return 1;
}
int cmcompress_compress_finalize(struct cmcompress_stream* cdata)
{
/*
* Put out the final code.
*/
if ( !output(cdata, (code_int)cdata->ent ) )
{
return 0;
}
cdata->out_count++;
if ( !output(cdata, (code_int)-1 ) )
{
return 0;
}
if(cdata->bytes_out > cdata->in_count) /* exit(2) if no savings */
{
return 0;
}
return 1;
}
#if defined(DEBUG)
static void prratio(FILE *stream, long int num, long int den)
{
register int q; /* Doesn't need to be long */
if(num > 214748L)
{ /* 2147483647/10000 */
q = num / (den / 10000L);
}
else
{
q = 10000L * num / den; /* Long calculations, though */
}
if (q < 0)
{
putc('-', stream);
q = -q;
}
fprintf(stream, "%d.%02d%%", q / 100, q % 100);
}
#endif

195
Utilities/cmcompress/cmcompress.h
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@@ -1,195 +0,0 @@
/*
* Copyright (c) 1985, 1986 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* James A. Woods, derived from original work by Spencer Thomas
* and Joseph Orost.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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 cmcompress__h_
#define cmcompress__h_
#include <stdio.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*
* Set USERMEM to the maximum amount of physical user memory available
* in bytes. USERMEM is used to determine the maximum BITS that can be used
* for compression.
*
* SACREDMEM is the amount of physical memory saved for others; compress
* will hog the rest.
*/
#ifndef SACREDMEM
#define SACREDMEM 0
#endif
#ifndef USERMEM
# define USERMEM 450000 /* default user memory */
#endif
#ifdef pdp11
# define BITS 12 /* max bits/code for 16-bit machine */
# define NO_UCHAR /* also if "unsigned char" functions as signed char */
# undef USERMEM
#endif /* pdp11 */ /* don't forget to compile with -i */
#ifdef USERMEM
# if USERMEM >= (433484+SACREDMEM)
# define PBITS 16
# else
# if USERMEM >= (229600+SACREDMEM)
# define PBITS 15
# else
# if USERMEM >= (127536+SACREDMEM)
# define PBITS 14
# else
# if USERMEM >= (73464+SACREDMEM)
# define PBITS 13
# else
# define PBITS 12
# endif
# endif
# endif
# endif
# undef USERMEM
#endif /* USERMEM */
#ifdef PBITS /* Preferred BITS for this memory size */
# ifndef BITS
# define BITS PBITS
# endif /* BITS */
#endif /* PBITS */
#if BITS == 16
# define HSIZE 69001 /* 95% occupancy */
#endif
#if BITS == 15
# define HSIZE 35023 /* 94% occupancy */
#endif
#if BITS == 14
# define HSIZE 18013 /* 91% occupancy */
#endif
#if BITS == 13
# define HSIZE 9001 /* 91% occupancy */
#endif
#if BITS <= 12
# define HSIZE 5003 /* 80% occupancy */
#endif
/*
* a code_int must be able to hold 2**BITS values of type int, and also -1
*/
#if BITS > 15
typedef long int code_int;
#else
typedef int code_int;
#endif
#ifdef SIGNED_COMPARE_SLOW
typedef unsigned long int count_int;
typedef unsigned short int count_short;
#else
typedef long int count_int;
#endif
#ifdef NO_UCHAR
typedef char char_type;
#else
typedef unsigned char char_type;
#endif /* UCHAR */
struct cmcompress_stream
{
int n_bits; /* number of bits/code */
int maxbits; /* user settable max # bits/code */
code_int maxcode; /* maximum code, given n_bits */
code_int maxmaxcode; /* should NEVER generate this code */
count_int htab [HSIZE];
unsigned short codetab [HSIZE];
code_int hsize; /* for dynamic table sizing */
code_int free_ent; /* first unused entry */
int nomagic; /* Use a 3-byte magic number header, unless old file */
/*
* block compression parameters -- after all codes are used up,
* and compression rate changes, start over.
*/
int block_compress;
int clear_flg;
long int ratio;
count_int checkpoint;
#ifdef DEBUG
int debug;
int verbose;
#endif
/* compress internals */
int offset;
long int in_count; /* length of input */
long int bytes_out; /* length of compressed output */
long int out_count; /* # of codes output (for debugging) */
/* internals */
code_int ent;
code_int hsize_reg;
int hshift;
long fcode;
int first_pass;
/* For input and output */
int (*input_stream)(void*);
int (*output_stream)(void*, const char*,int);
void* client_data;
};
int cmcompress_compress_initialize(struct cmcompress_stream* cdata);
int cmcompress_compress_start(struct cmcompress_stream* cdata);
int cmcompress_compress(struct cmcompress_stream* cdata, void* buff, size_t n);
int cmcompress_compress_finalize(struct cmcompress_stream* cdata);
#ifdef __cplusplus
}
#endif
#endif /* cmcompress__h_ */

1308
Utilities/cmcompress/compress.c.original
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