Import Geant4 7.1.0 source tree
This commit is contained in:
@@ -0,0 +1,71 @@
|
||||
/* adler32.c -- compute the Adler-32 checksum of a data stream
|
||||
* Copyright (C) 1995-2003 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
/* @(#) $Id: adler32.cc,v 1.1 2005/05/12 21:04:53 duns Exp $ */
|
||||
|
||||
#define ZLIB_INTERNAL
|
||||
#include "zlib.h"
|
||||
|
||||
#define BASE 65521UL /* largest prime smaller than 65536 */
|
||||
#define NMAX 5552
|
||||
/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
|
||||
|
||||
#define DO1(buf,i) {s1 += buf[i]; s2 += s1;}
|
||||
#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1);
|
||||
#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2);
|
||||
#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4);
|
||||
#define DO16(buf) DO8(buf,0); DO8(buf,8);
|
||||
|
||||
#ifdef NO_DIVIDE
|
||||
# define MOD(a) \
|
||||
do { \
|
||||
if (a >= (BASE << 16)) a -= (BASE << 16); \
|
||||
if (a >= (BASE << 15)) a -= (BASE << 15); \
|
||||
if (a >= (BASE << 14)) a -= (BASE << 14); \
|
||||
if (a >= (BASE << 13)) a -= (BASE << 13); \
|
||||
if (a >= (BASE << 12)) a -= (BASE << 12); \
|
||||
if (a >= (BASE << 11)) a -= (BASE << 11); \
|
||||
if (a >= (BASE << 10)) a -= (BASE << 10); \
|
||||
if (a >= (BASE << 9)) a -= (BASE << 9); \
|
||||
if (a >= (BASE << 8)) a -= (BASE << 8); \
|
||||
if (a >= (BASE << 7)) a -= (BASE << 7); \
|
||||
if (a >= (BASE << 6)) a -= (BASE << 6); \
|
||||
if (a >= (BASE << 5)) a -= (BASE << 5); \
|
||||
if (a >= (BASE << 4)) a -= (BASE << 4); \
|
||||
if (a >= (BASE << 3)) a -= (BASE << 3); \
|
||||
if (a >= (BASE << 2)) a -= (BASE << 2); \
|
||||
if (a >= (BASE << 1)) a -= (BASE << 1); \
|
||||
if (a >= BASE) a -= BASE; \
|
||||
} while (0)
|
||||
#else
|
||||
# define MOD(a) a %= BASE
|
||||
#endif
|
||||
|
||||
/* ========================================================================= */
|
||||
uLong ZEXPORT adler32(uLong adler, const Bytef *buf, uInt len)
|
||||
{
|
||||
unsigned long s1 = adler & 0xffff;
|
||||
unsigned long s2 = (adler >> 16) & 0xffff;
|
||||
int k;
|
||||
|
||||
if (buf == Z_NULL) return 1L;
|
||||
|
||||
while (len > 0) {
|
||||
k = len < NMAX ? (int)len : NMAX;
|
||||
len -= k;
|
||||
while (k >= 16) {
|
||||
DO16(buf);
|
||||
buf += 16;
|
||||
k -= 16;
|
||||
}
|
||||
if (k != 0) do {
|
||||
s1 += *buf++;
|
||||
s2 += s1;
|
||||
} while (--k);
|
||||
MOD(s1);
|
||||
MOD(s2);
|
||||
}
|
||||
return (s2 << 16) | s1;
|
||||
}
|
||||
@@ -0,0 +1,69 @@
|
||||
/* compress.c -- compress a memory buffer
|
||||
* Copyright (C) 1995-2002 Jean-loup Gailly.
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
/* @(#) $Id: compress.cc,v 1.1 2005/05/12 21:04:53 duns Exp $ */
|
||||
|
||||
#define ZLIB_INTERNAL
|
||||
#include "zlib.h"
|
||||
|
||||
/* ===========================================================================
|
||||
Compresses the source buffer into the destination buffer. The level
|
||||
parameter has the same meaning as in deflateInit. sourceLen is the byte
|
||||
length of the source buffer. Upon entry, destLen is the total size of the
|
||||
destination buffer, which must be at least 0.1% larger than sourceLen plus
|
||||
12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
|
||||
|
||||
compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
|
||||
memory, Z_BUF_ERROR if there was not enough room in the output buffer,
|
||||
Z_STREAM_ERROR if the level parameter is invalid.
|
||||
*/
|
||||
int ZEXPORT compress2 (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen, int level)
|
||||
{
|
||||
z_stream stream;
|
||||
int err;
|
||||
|
||||
stream.next_in = (Bytef*)source;
|
||||
stream.avail_in = (uInt)sourceLen;
|
||||
#ifdef MAXSEG_64K
|
||||
/* Check for source > 64K on 16-bit machine: */
|
||||
if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
|
||||
#endif
|
||||
stream.next_out = dest;
|
||||
stream.avail_out = (uInt)*destLen;
|
||||
if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
|
||||
|
||||
stream.zalloc = (alloc_func)0;
|
||||
stream.zfree = (free_func)0;
|
||||
stream.opaque = (voidpf)0;
|
||||
|
||||
err = deflateInit(&stream, level);
|
||||
if (err != Z_OK) return err;
|
||||
|
||||
err = deflate(&stream, Z_FINISH);
|
||||
if (err != Z_STREAM_END) {
|
||||
deflateEnd(&stream);
|
||||
return err == Z_OK ? Z_BUF_ERROR : err;
|
||||
}
|
||||
*destLen = stream.total_out;
|
||||
|
||||
err = deflateEnd(&stream);
|
||||
return err;
|
||||
}
|
||||
|
||||
/* ===========================================================================
|
||||
*/
|
||||
int ZEXPORT compress (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)
|
||||
{
|
||||
return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION);
|
||||
}
|
||||
|
||||
/* ===========================================================================
|
||||
If the default memLevel or windowBits for deflateInit() is changed, then
|
||||
this function needs to be updated.
|
||||
*/
|
||||
uLong ZEXPORT compressBound (uLong sourceLen)
|
||||
{
|
||||
return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + 11;
|
||||
}
|
||||
+322
@@ -0,0 +1,322 @@
|
||||
/* crc32.c -- compute the CRC-32 of a data stream
|
||||
* Copyright (C) 1995-2003 Mark Adler
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*
|
||||
* Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
|
||||
* CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing
|
||||
* tables for updating the shift register in one step with three exclusive-ors
|
||||
* instead of four steps with four exclusive-ors. This results about a factor
|
||||
* of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3.
|
||||
*/
|
||||
|
||||
/* @(#) $Id: crc32.cc,v 1.1 2005/05/12 21:04:53 duns Exp $ */
|
||||
|
||||
/*
|
||||
Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore
|
||||
protection on the static variables used to control the first-use generation
|
||||
of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should
|
||||
first call get_crc_table() to initialize the tables before allowing more than
|
||||
one thread to use crc32().
|
||||
*/
|
||||
|
||||
#ifdef MAKECRCH
|
||||
# include <stdio.h>
|
||||
# ifndef DYNAMIC_CRC_TABLE
|
||||
# define DYNAMIC_CRC_TABLE
|
||||
# endif /* !DYNAMIC_CRC_TABLE */
|
||||
#endif /* MAKECRCH */
|
||||
|
||||
#include "zutil.h" /* for STDC and FAR definitions */
|
||||
|
||||
#define local static
|
||||
|
||||
/* Find a four-byte integer type for crc32_little() and crc32_big(). */
|
||||
#ifndef NOBYFOUR
|
||||
# ifdef STDC /* need ANSI C limits.h to determine sizes */
|
||||
# include <limits.h>
|
||||
# define BYFOUR
|
||||
# if (UINT_MAX == 0xffffffffUL)
|
||||
typedef unsigned int u4;
|
||||
# else
|
||||
# if (ULONG_MAX == 0xffffffffUL)
|
||||
typedef unsigned long u4;
|
||||
# else
|
||||
# if (USHRT_MAX == 0xffffffffUL)
|
||||
typedef unsigned short u4;
|
||||
# else
|
||||
# undef BYFOUR /* can't find a four-byte integer type! */
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
# endif /* STDC */
|
||||
#endif /* !NOBYFOUR */
|
||||
|
||||
/* Definitions for doing the crc four data bytes at a time. */
|
||||
#ifdef BYFOUR
|
||||
# define REV(w) (((w)>>24)+(((w)>>8)&0xff00)+ \
|
||||
(((w)&0xff00)<<8)+(((w)&0xff)<<24))
|
||||
local unsigned long crc32_little OF((unsigned long,
|
||||
const unsigned char FAR *, unsigned));
|
||||
local unsigned long crc32_big OF((unsigned long,
|
||||
const unsigned char FAR *, unsigned));
|
||||
# define TBLS 8
|
||||
#else
|
||||
# define TBLS 1
|
||||
#endif /* BYFOUR */
|
||||
|
||||
#ifdef DYNAMIC_CRC_TABLE
|
||||
|
||||
local volatile int crc_table_empty = 1;
|
||||
local unsigned long FAR crc_table[TBLS][256];
|
||||
local void make_crc_table OF((void));
|
||||
#ifdef MAKECRCH
|
||||
local void write_table OF((FILE *, const unsigned long FAR *));
|
||||
#endif /* MAKECRCH */
|
||||
|
||||
/*
|
||||
Generate tables for a byte-wise 32-bit CRC calculation on the polynomial:
|
||||
x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1.
|
||||
|
||||
Polynomials over GF(2) are represented in binary, one bit per coefficient,
|
||||
with the lowest powers in the most significant bit. Then adding polynomials
|
||||
is just exclusive-or, and multiplying a polynomial by x is a right shift by
|
||||
one. If we call the above polynomial p, and represent a byte as the
|
||||
polynomial q, also with the lowest power in the most significant bit (so the
|
||||
byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p,
|
||||
where a mod b means the remainder after dividing a by b.
|
||||
|
||||
This calculation is done using the shift-register method of multiplying and
|
||||
taking the remainder. The register is initialized to zero, and for each
|
||||
incoming bit, x^32 is added mod p to the register if the bit is a one (where
|
||||
x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by
|
||||
x (which is shifting right by one and adding x^32 mod p if the bit shifted
|
||||
out is a one). We start with the highest power (least significant bit) of
|
||||
q and repeat for all eight bits of q.
|
||||
|
||||
The first table is simply the CRC of all possible eight bit values. This is
|
||||
all the information needed to generate CRCs on data a byte at a time for all
|
||||
combinations of CRC register values and incoming bytes. The remaining tables
|
||||
allow for word-at-a-time CRC calculation for both big-endian and little-
|
||||
endian machines, where a word is four bytes.
|
||||
*/
|
||||
local void make_crc_table()
|
||||
{
|
||||
unsigned long c;
|
||||
int n, k;
|
||||
unsigned long poly; /* polynomial exclusive-or pattern */
|
||||
/* terms of polynomial defining this crc (except x^32): */
|
||||
static volatile int first = 1; /* flag to limit concurrent making */
|
||||
static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
|
||||
|
||||
/* See if another task is already doing this (not thread-safe, but better
|
||||
than nothing -- significantly reduces duration of vulnerability in
|
||||
case the advice about DYNAMIC_CRC_TABLE is ignored) */
|
||||
if (first) {
|
||||
first = 0;
|
||||
|
||||
/* make exclusive-or pattern from polynomial (0xedb88320UL) */
|
||||
poly = 0UL;
|
||||
for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++)
|
||||
poly |= 1UL << (31 - p[n]);
|
||||
|
||||
/* generate a crc for every 8-bit value */
|
||||
for (n = 0; n < 256; n++) {
|
||||
c = (unsigned long)n;
|
||||
for (k = 0; k < 8; k++)
|
||||
c = c & 1 ? poly ^ (c >> 1) : c >> 1;
|
||||
crc_table[0][n] = c;
|
||||
}
|
||||
|
||||
#ifdef BYFOUR
|
||||
/* generate crc for each value followed by one, two, and three zeros,
|
||||
and then the byte reversal of those as well as the first table */
|
||||
for (n = 0; n < 256; n++) {
|
||||
c = crc_table[0][n];
|
||||
crc_table[4][n] = REV(c);
|
||||
for (k = 1; k < 4; k++) {
|
||||
c = crc_table[0][c & 0xff] ^ (c >> 8);
|
||||
crc_table[k][n] = c;
|
||||
crc_table[k + 4][n] = REV(c);
|
||||
}
|
||||
}
|
||||
#endif /* BYFOUR */
|
||||
|
||||
crc_table_empty = 0;
|
||||
}
|
||||
else { /* not first */
|
||||
/* wait for the other guy to finish (not efficient, but rare) */
|
||||
while (crc_table_empty)
|
||||
;
|
||||
}
|
||||
|
||||
#ifdef MAKECRCH
|
||||
/* write out CRC tables to crc32.h */
|
||||
{
|
||||
FILE *out;
|
||||
|
||||
out = fopen("crc32.h", "w");
|
||||
if (out == NULL) return;
|
||||
fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n");
|
||||
fprintf(out, " * Generated automatically by crc32.c\n */\n\n");
|
||||
fprintf(out, "local const unsigned long FAR ");
|
||||
fprintf(out, "crc_table[TBLS][256] =\n{\n {\n");
|
||||
write_table(out, crc_table[0]);
|
||||
# ifdef BYFOUR
|
||||
fprintf(out, "#ifdef BYFOUR\n");
|
||||
for (k = 1; k < 8; k++) {
|
||||
fprintf(out, " },\n {\n");
|
||||
write_table(out, crc_table[k]);
|
||||
}
|
||||
fprintf(out, "#endif\n");
|
||||
# endif /* BYFOUR */
|
||||
fprintf(out, " }\n};\n");
|
||||
fclose(out);
|
||||
}
|
||||
#endif /* MAKECRCH */
|
||||
}
|
||||
|
||||
#ifdef MAKECRCH
|
||||
local void write_table(FILE *out, const unsigned long FAR *table)
|
||||
{
|
||||
int n;
|
||||
|
||||
for (n = 0; n < 256; n++)
|
||||
fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", table[n],
|
||||
n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", "));
|
||||
}
|
||||
#endif /* MAKECRCH */
|
||||
|
||||
#else /* !DYNAMIC_CRC_TABLE */
|
||||
/* ========================================================================
|
||||
* Tables of CRC-32s of all single-byte values, made by make_crc_table().
|
||||
*/
|
||||
#include "crc32.h"
|
||||
#endif /* DYNAMIC_CRC_TABLE */
|
||||
|
||||
/* =========================================================================
|
||||
* This function can be used by asm versions of crc32()
|
||||
*/
|
||||
const unsigned long FAR * ZEXPORT get_crc_table()
|
||||
{
|
||||
#ifdef DYNAMIC_CRC_TABLE
|
||||
if (crc_table_empty)
|
||||
make_crc_table();
|
||||
#endif /* DYNAMIC_CRC_TABLE */
|
||||
return (const unsigned long FAR *)crc_table;
|
||||
}
|
||||
|
||||
/* ========================================================================= */
|
||||
#define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8)
|
||||
#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1
|
||||
|
||||
/* ========================================================================= */
|
||||
unsigned long ZEXPORT crc32(unsigned long crc, const unsigned char FAR *buf, unsigned len)
|
||||
{
|
||||
if (buf == Z_NULL) return 0UL;
|
||||
|
||||
#ifdef DYNAMIC_CRC_TABLE
|
||||
if (crc_table_empty)
|
||||
make_crc_table();
|
||||
#endif /* DYNAMIC_CRC_TABLE */
|
||||
|
||||
#ifdef BYFOUR
|
||||
if (sizeof(void *) == sizeof(ptrdiff_t)) {
|
||||
u4 endian;
|
||||
|
||||
endian = 1;
|
||||
if (*((unsigned char *)(&endian)))
|
||||
return crc32_little(crc, buf, len);
|
||||
else
|
||||
return crc32_big(crc, buf, len);
|
||||
}
|
||||
#endif /* BYFOUR */
|
||||
crc = crc ^ 0xffffffffUL;
|
||||
while (len >= 8) {
|
||||
DO8;
|
||||
len -= 8;
|
||||
}
|
||||
if (len) do {
|
||||
DO1;
|
||||
} while (--len);
|
||||
return crc ^ 0xffffffffUL;
|
||||
}
|
||||
|
||||
#ifdef BYFOUR
|
||||
|
||||
/* ========================================================================= */
|
||||
#define DOLIT4 c ^= *buf4++; \
|
||||
c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \
|
||||
crc_table[1][(c >> 16) & 0xff] ^ crc_table[0][c >> 24]
|
||||
#define DOLIT32 DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4
|
||||
|
||||
/* ========================================================================= */
|
||||
local unsigned long crc32_little(unsigned long crc, const unsigned char FAR *buf, unsigned len)
|
||||
{
|
||||
register u4 c;
|
||||
register const u4 FAR *buf4;
|
||||
|
||||
c = (u4)crc;
|
||||
c = ~c;
|
||||
while (len && ((ptrdiff_t)buf & 3)) {
|
||||
c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8);
|
||||
len--;
|
||||
}
|
||||
|
||||
buf4 = (const u4 FAR *)buf;
|
||||
while (len >= 32) {
|
||||
DOLIT32;
|
||||
len -= 32;
|
||||
}
|
||||
while (len >= 4) {
|
||||
DOLIT4;
|
||||
len -= 4;
|
||||
}
|
||||
buf = (const unsigned char FAR *)buf4;
|
||||
|
||||
if (len) do {
|
||||
c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8);
|
||||
} while (--len);
|
||||
c = ~c;
|
||||
return (unsigned long)c;
|
||||
}
|
||||
|
||||
/* ========================================================================= */
|
||||
#define DOBIG4 c ^= *++buf4; \
|
||||
c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \
|
||||
crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24]
|
||||
#define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4
|
||||
|
||||
/* ========================================================================= */
|
||||
local unsigned long crc32_big(unsigned long crc, const unsigned char FAR *buf, unsigned len)
|
||||
{
|
||||
register u4 c;
|
||||
register const u4 FAR *buf4;
|
||||
|
||||
c = REV((u4)crc);
|
||||
c = ~c;
|
||||
while (len && ((ptrdiff_t)buf & 3)) {
|
||||
c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8);
|
||||
len--;
|
||||
}
|
||||
|
||||
buf4 = (const u4 FAR *)buf;
|
||||
buf4--;
|
||||
while (len >= 32) {
|
||||
DOBIG32;
|
||||
len -= 32;
|
||||
}
|
||||
while (len >= 4) {
|
||||
DOBIG4;
|
||||
len -= 4;
|
||||
}
|
||||
buf4++;
|
||||
buf = (const unsigned char FAR *)buf4;
|
||||
|
||||
if (len) do {
|
||||
c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8);
|
||||
} while (--len);
|
||||
c = ~c;
|
||||
return (unsigned long)(REV(c));
|
||||
}
|
||||
|
||||
#endif /* BYFOUR */
|
||||
+1452
File diff suppressed because it is too large
Load Diff
+1167
File diff suppressed because it is too large
Load Diff
+304
@@ -0,0 +1,304 @@
|
||||
/* zutil.c -- target dependent utility functions for the compression library
|
||||
* Copyright (C) 1995-2003 Jean-loup Gailly.
|
||||
* For conditions of distribution and use, see copyright notice in zlib.h
|
||||
*/
|
||||
|
||||
/* @(#) $Id: zutil.cc,v 1.1 2005/05/12 21:04:53 duns Exp $ */
|
||||
|
||||
#include "zutil.h"
|
||||
|
||||
#ifndef NO_DUMMY_DECL
|
||||
struct internal_state {int dummy;}; /* for buggy compilers */
|
||||
#endif
|
||||
|
||||
#ifndef STDC
|
||||
extern void exit OF((int));
|
||||
#endif
|
||||
|
||||
const char * const z_errmsg[10] = {
|
||||
"need dictionary", /* Z_NEED_DICT 2 */
|
||||
"stream end", /* Z_STREAM_END 1 */
|
||||
"", /* Z_OK 0 */
|
||||
"file error", /* Z_ERRNO (-1) */
|
||||
"stream error", /* Z_STREAM_ERROR (-2) */
|
||||
"data error", /* Z_DATA_ERROR (-3) */
|
||||
"insufficient memory", /* Z_MEM_ERROR (-4) */
|
||||
"buffer error", /* Z_BUF_ERROR (-5) */
|
||||
"incompatible version",/* Z_VERSION_ERROR (-6) */
|
||||
""};
|
||||
|
||||
|
||||
const char * ZEXPORT zlibVersion()
|
||||
{
|
||||
return ZLIB_VERSION;
|
||||
}
|
||||
|
||||
uLong ZEXPORT zlibCompileFlags()
|
||||
{
|
||||
uLong flags;
|
||||
|
||||
flags = 0;
|
||||
switch (sizeof(uInt)) {
|
||||
case 2: break;
|
||||
case 4: flags += 1; break;
|
||||
case 8: flags += 2; break;
|
||||
default: flags += 3;
|
||||
}
|
||||
switch (sizeof(uLong)) {
|
||||
case 2: break;
|
||||
case 4: flags += 1 << 2; break;
|
||||
case 8: flags += 2 << 2; break;
|
||||
default: flags += 3 << 2;
|
||||
}
|
||||
switch (sizeof(voidpf)) {
|
||||
case 2: break;
|
||||
case 4: flags += 1 << 4; break;
|
||||
case 8: flags += 2 << 4; break;
|
||||
default: flags += 3 << 4;
|
||||
}
|
||||
switch (sizeof(z_off_t)) {
|
||||
case 2: break;
|
||||
case 4: flags += 1 << 6; break;
|
||||
case 8: flags += 2 << 6; break;
|
||||
default: flags += 3 << 6;
|
||||
}
|
||||
#ifdef DEBUG
|
||||
flags += 1 << 8;
|
||||
#endif
|
||||
#if defined(ASMV) || defined(ASMINF)
|
||||
flags += 1 << 9;
|
||||
#endif
|
||||
#ifdef ZLIB_WINAPI
|
||||
flags += 1 << 10;
|
||||
#endif
|
||||
#ifdef BUILDFIXED
|
||||
flags += 1 << 12;
|
||||
#endif
|
||||
#ifdef DYNAMIC_CRC_TABLE
|
||||
flags += 1 << 13;
|
||||
#endif
|
||||
#ifdef NO_GZCOMPRESS
|
||||
flags += 1 << 16;
|
||||
#endif
|
||||
#ifdef NO_GZIP
|
||||
flags += 1 << 17;
|
||||
#endif
|
||||
#ifdef PKZIP_BUG_WORKAROUND
|
||||
flags += 1 << 20;
|
||||
#endif
|
||||
#ifdef FASTEST
|
||||
flags += 1 << 21;
|
||||
#endif
|
||||
#ifdef STDC
|
||||
# ifdef NO_vsnprintf
|
||||
flags += 1 << 25;
|
||||
# ifdef HAS_vsprintf_void
|
||||
flags += 1 << 26;
|
||||
# endif
|
||||
# else
|
||||
# ifdef HAS_vsnprintf_void
|
||||
flags += 1 << 26;
|
||||
# endif
|
||||
# endif
|
||||
#else
|
||||
flags += 1 << 24;
|
||||
# ifdef NO_snprintf
|
||||
flags += 1 << 25;
|
||||
# ifdef HAS_sprintf_void
|
||||
flags += 1 << 26;
|
||||
# endif
|
||||
# else
|
||||
# ifdef HAS_snprintf_void
|
||||
flags += 1 << 26;
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
return flags;
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
|
||||
# ifndef verbose
|
||||
# define verbose 0
|
||||
# endif
|
||||
int z_verbose = verbose;
|
||||
|
||||
void z_error (char *m)
|
||||
{
|
||||
fprintf(stderr, "%s\n", m);
|
||||
exit(1);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* exported to allow conversion of error code to string for compress() and
|
||||
* uncompress()
|
||||
*/
|
||||
const char * ZEXPORT zError(int err)
|
||||
{
|
||||
return ERR_MSG(err);
|
||||
}
|
||||
|
||||
#if defined(_WIN32_WCE)
|
||||
/* does not exist on WCE */
|
||||
int errno = 0;
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_MEMCPY
|
||||
|
||||
void zmemcpy(Bytef *dest, const Bytef *source, uInt len)
|
||||
{
|
||||
if (len == 0) return;
|
||||
do {
|
||||
*dest++ = *source++; /* ??? to be unrolled */
|
||||
} while (--len != 0);
|
||||
}
|
||||
|
||||
int zmemcmp(const Bytef* s1, const Bytef* s2, uInt len)
|
||||
{
|
||||
uInt j;
|
||||
|
||||
for (j = 0; j < len; j++) {
|
||||
if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
void zmemzero(Bytef *dest, uInt len)
|
||||
{
|
||||
if (len == 0) return;
|
||||
do {
|
||||
*dest++ = 0; /* ??? to be unrolled */
|
||||
} while (--len != 0);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef SYS16BIT
|
||||
|
||||
#ifdef __TURBOC__
|
||||
/* Turbo C in 16-bit mode */
|
||||
|
||||
# define MY_ZCALLOC
|
||||
|
||||
/* Turbo C malloc() does not allow dynamic allocation of 64K bytes
|
||||
* and farmalloc(64K) returns a pointer with an offset of 8, so we
|
||||
* must fix the pointer. Warning: the pointer must be put back to its
|
||||
* original form in order to free it, use zcfree().
|
||||
*/
|
||||
|
||||
#define MAX_PTR 10
|
||||
/* 10*64K = 640K */
|
||||
|
||||
local int next_ptr = 0;
|
||||
|
||||
typedef struct ptr_table_s {
|
||||
voidpf org_ptr;
|
||||
voidpf new_ptr;
|
||||
} ptr_table;
|
||||
|
||||
local ptr_table table[MAX_PTR];
|
||||
/* This table is used to remember the original form of pointers
|
||||
* to large buffers (64K). Such pointers are normalized with a zero offset.
|
||||
* Since MSDOS is not a preemptive multitasking OS, this table is not
|
||||
* protected from concurrent access. This hack doesn't work anyway on
|
||||
* a protected system like OS/2. Use Microsoft C instead.
|
||||
*/
|
||||
|
||||
voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
|
||||
{
|
||||
voidpf buf = opaque; /* just to make some compilers happy */
|
||||
ulg bsize = (ulg)items*size;
|
||||
|
||||
/* If we allocate less than 65520 bytes, we assume that farmalloc
|
||||
* will return a usable pointer which doesn't have to be normalized.
|
||||
*/
|
||||
if (bsize < 65520L) {
|
||||
buf = farmalloc(bsize);
|
||||
if (*(ush*)&buf != 0) return buf;
|
||||
} else {
|
||||
buf = farmalloc(bsize + 16L);
|
||||
}
|
||||
if (buf == NULL || next_ptr >= MAX_PTR) return NULL;
|
||||
table[next_ptr].org_ptr = buf;
|
||||
|
||||
/* Normalize the pointer to seg:0 */
|
||||
*((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;
|
||||
*(ush*)&buf = 0;
|
||||
table[next_ptr++].new_ptr = buf;
|
||||
return buf;
|
||||
}
|
||||
|
||||
void zcfree (voidpf opaque, voidpf ptr)
|
||||
{
|
||||
int n;
|
||||
if (*(ush*)&ptr != 0) { /* object < 64K */
|
||||
farfree(ptr);
|
||||
return;
|
||||
}
|
||||
/* Find the original pointer */
|
||||
for (n = 0; n < next_ptr; n++) {
|
||||
if (ptr != table[n].new_ptr) continue;
|
||||
|
||||
farfree(table[n].org_ptr);
|
||||
while (++n < next_ptr) {
|
||||
table[n-1] = table[n];
|
||||
}
|
||||
next_ptr--;
|
||||
return;
|
||||
}
|
||||
ptr = opaque; /* just to make some compilers happy */
|
||||
Assert(0, "zcfree: ptr not found");
|
||||
}
|
||||
|
||||
#endif /* __TURBOC__ */
|
||||
|
||||
|
||||
#ifdef M_I86
|
||||
/* Microsoft C in 16-bit mode */
|
||||
|
||||
# define MY_ZCALLOC
|
||||
|
||||
#if (!defined(_MSC_VER) || (_MSC_VER <= 600))
|
||||
# define _halloc halloc
|
||||
# define _hfree hfree
|
||||
#endif
|
||||
|
||||
voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
|
||||
{
|
||||
if (opaque) opaque = 0; /* to make compiler happy */
|
||||
return _halloc((long)items, size);
|
||||
}
|
||||
|
||||
void zcfree (voidpf opaque, voidpf ptr)
|
||||
{
|
||||
if (opaque) opaque = 0; /* to make compiler happy */
|
||||
_hfree(ptr);
|
||||
}
|
||||
|
||||
#endif /* M_I86 */
|
||||
|
||||
#endif /* SYS16BIT */
|
||||
|
||||
|
||||
#ifndef MY_ZCALLOC /* Any system without a special alloc function */
|
||||
|
||||
#ifndef STDC
|
||||
extern voidp malloc OF((uInt size));
|
||||
extern voidp calloc OF((uInt items, uInt size));
|
||||
extern void free OF((voidpf ptr));
|
||||
#endif
|
||||
|
||||
voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
|
||||
{
|
||||
if (opaque) items += size - size; /* make compiler happy */
|
||||
return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :
|
||||
(voidpf)calloc(items, size);
|
||||
}
|
||||
|
||||
void zcfree (voidpf opaque, voidpf ptr)
|
||||
{
|
||||
free(ptr);
|
||||
if (opaque) return; /* make compiler happy */
|
||||
}
|
||||
|
||||
#endif /* MY_ZCALLOC */
|
||||
Reference in New Issue
Block a user