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comparison: modules/zlib/src/zutil.h
modules/zlib/src/zutil.h
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| -1:000000000000 | 0:eee3dd8afbd1 |
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| 1 /* zutil.h -- internal interface and configuration of the compression library | |
| 2 * Copyright (C) 1995-2013 Jean-loup Gailly. | |
| 3 * For conditions of distribution and use, see copyright notice in zlib.h | |
| 4 */ | |
| 5 | |
| 6 /* WARNING: this file should *not* be used by applications. It is | |
| 7 part of the implementation of the compression library and is | |
| 8 subject to change. Applications should only use zlib.h. | |
| 9 */ | |
| 10 | |
| 11 /* @(#) $Id$ */ | |
| 12 | |
| 13 #ifndef ZUTIL_H | |
| 14 #define ZUTIL_H | |
| 15 | |
| 16 #ifdef HAVE_HIDDEN | |
| 17 # define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) | |
| 18 #else | |
| 19 # define ZLIB_INTERNAL | |
| 20 #endif | |
| 21 | |
| 22 #include "zlib.h" | |
| 23 | |
| 24 #if defined(STDC) && !defined(Z_SOLO) | |
| 25 # if !(defined(_WIN32_WCE) && defined(_MSC_VER)) | |
| 26 # include <stddef.h> | |
| 27 # endif | |
| 28 # include <string.h> | |
| 29 # include <stdlib.h> | |
| 30 #endif | |
| 31 | |
| 32 #ifdef Z_SOLO | |
| 33 typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */ | |
| 34 #endif | |
| 35 | |
| 36 #ifndef local | |
| 37 # define local static | |
| 38 #endif | |
| 39 /* compile with -Dlocal if your debugger can't find static symbols */ | |
| 40 | |
| 41 typedef unsigned char uch; | |
| 42 typedef uch FAR uchf; | |
| 43 typedef unsigned short ush; | |
| 44 typedef ush FAR ushf; | |
| 45 typedef unsigned long ulg; | |
| 46 | |
| 47 extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ | |
| 48 /* (size given to avoid silly warnings with Visual C++) */ | |
| 49 | |
| 50 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] | |
| 51 | |
| 52 #define ERR_RETURN(strm,err) \ | |
| 53 return (strm->msg = ERR_MSG(err), (err)) | |
| 54 /* To be used only when the state is known to be valid */ | |
| 55 | |
| 56 /* common constants */ | |
| 57 | |
| 58 #ifndef DEF_WBITS | |
| 59 # define DEF_WBITS MAX_WBITS | |
| 60 #endif | |
| 61 /* default windowBits for decompression. MAX_WBITS is for compression only */ | |
| 62 | |
| 63 #if MAX_MEM_LEVEL >= 8 | |
| 64 # define DEF_MEM_LEVEL 8 | |
| 65 #else | |
| 66 # define DEF_MEM_LEVEL MAX_MEM_LEVEL | |
| 67 #endif | |
| 68 /* default memLevel */ | |
| 69 | |
| 70 #define STORED_BLOCK 0 | |
| 71 #define STATIC_TREES 1 | |
| 72 #define DYN_TREES 2 | |
| 73 /* The three kinds of block type */ | |
| 74 | |
| 75 #define MIN_MATCH 3 | |
| 76 #define MAX_MATCH 258 | |
| 77 /* The minimum and maximum match lengths */ | |
| 78 | |
| 79 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ | |
| 80 | |
| 81 /* target dependencies */ | |
| 82 | |
| 83 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) | |
| 84 # define OS_CODE 0x00 | |
| 85 # ifndef Z_SOLO | |
| 86 # if defined(__TURBOC__) || defined(__BORLANDC__) | |
| 87 # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) | |
| 88 /* Allow compilation with ANSI keywords only enabled */ | |
| 89 void _Cdecl farfree( void *block ); | |
| 90 void *_Cdecl farmalloc( unsigned long nbytes ); | |
| 91 # else | |
| 92 # include <alloc.h> | |
| 93 # endif | |
| 94 # else /* MSC or DJGPP */ | |
| 95 # include <malloc.h> | |
| 96 # endif | |
| 97 # endif | |
| 98 #endif | |
| 99 | |
| 100 #ifdef AMIGA | |
| 101 # define OS_CODE 0x01 | |
| 102 #endif | |
| 103 | |
| 104 #if defined(VAXC) || defined(VMS) | |
| 105 # define OS_CODE 0x02 | |
| 106 # define F_OPEN(name, mode) \ | |
| 107 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") | |
| 108 #endif | |
| 109 | |
| 110 #if defined(ATARI) || defined(atarist) | |
| 111 # define OS_CODE 0x05 | |
| 112 #endif | |
| 113 | |
| 114 #ifdef OS2 | |
| 115 # define OS_CODE 0x06 | |
| 116 # if defined(M_I86) && !defined(Z_SOLO) | |
| 117 # include <malloc.h> | |
| 118 # endif | |
| 119 #endif | |
| 120 | |
| 121 #if defined(MACOS) || defined(TARGET_OS_MAC) | |
| 122 # define OS_CODE 0x07 | |
| 123 # ifndef Z_SOLO | |
| 124 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os | |
| 125 # include <unix.h> /* for fdopen */ | |
| 126 # else | |
| 127 # ifndef fdopen | |
| 128 # define fdopen(fd,mode) NULL /* No fdopen() */ | |
| 129 # endif | |
| 130 # endif | |
| 131 # endif | |
| 132 #endif | |
| 133 | |
| 134 #ifdef TOPS20 | |
| 135 # define OS_CODE 0x0a | |
| 136 #endif | |
| 137 | |
| 138 #ifdef WIN32 | |
| 139 # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ | |
| 140 # define OS_CODE 0x0b | |
| 141 # endif | |
| 142 #endif | |
| 143 | |
| 144 #ifdef __50SERIES /* Prime/PRIMOS */ | |
| 145 # define OS_CODE 0x0f | |
| 146 #endif | |
| 147 | |
| 148 #if defined(_BEOS_) || defined(RISCOS) | |
| 149 # define fdopen(fd,mode) NULL /* No fdopen() */ | |
| 150 #endif | |
| 151 | |
| 152 #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX | |
| 153 # if defined(_WIN32_WCE) | |
| 154 # define fdopen(fd,mode) NULL /* No fdopen() */ | |
| 155 # ifndef _PTRDIFF_T_DEFINED | |
| 156 typedef int ptrdiff_t; | |
| 157 # define _PTRDIFF_T_DEFINED | |
| 158 # endif | |
| 159 # else | |
| 160 # define fdopen(fd,type) _fdopen(fd,type) | |
| 161 # endif | |
| 162 #endif | |
| 163 | |
| 164 #if defined(__BORLANDC__) && !defined(MSDOS) | |
| 165 #pragma warn -8004 | |
| 166 #pragma warn -8008 | |
| 167 #pragma warn -8066 | |
| 168 #endif | |
| 169 | |
| 170 /* provide prototypes for these when building zlib without LFS */ | |
| 171 #if !defined(_WIN32) && \ | |
| 172 (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0) | |
| 173 ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); | |
| 174 ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); | |
| 175 #endif | |
| 176 | |
| 177 /* common defaults */ | |
| 178 | |
| 179 #ifndef OS_CODE | |
| 180 # define OS_CODE 0x03 /* assume Unix */ | |
| 181 #endif | |
| 182 | |
| 183 #ifndef F_OPEN | |
| 184 # define F_OPEN(name, mode) fopen((name), (mode)) | |
| 185 #endif | |
| 186 | |
| 187 /* functions */ | |
| 188 | |
| 189 #if defined(pyr) || defined(Z_SOLO) | |
| 190 # define NO_MEMCPY | |
| 191 #endif | |
| 192 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) | |
| 193 /* Use our own functions for small and medium model with MSC <= 5.0. | |
| 194 * You may have to use the same strategy for Borland C (untested). | |
| 195 * The __SC__ check is for Symantec. | |
| 196 */ | |
| 197 # define NO_MEMCPY | |
| 198 #endif | |
| 199 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) | |
| 200 # define HAVE_MEMCPY | |
| 201 #endif | |
| 202 #ifdef HAVE_MEMCPY | |
| 203 # ifdef SMALL_MEDIUM /* MSDOS small or medium model */ | |
| 204 # define zmemcpy _fmemcpy | |
| 205 # define zmemcmp _fmemcmp | |
| 206 # define zmemzero(dest, len) _fmemset(dest, 0, len) | |
| 207 # else | |
| 208 # define zmemcpy memcpy | |
| 209 # define zmemcmp memcmp | |
| 210 # define zmemzero(dest, len) memset(dest, 0, len) | |
| 211 # endif | |
| 212 #else | |
| 213 void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); | |
| 214 int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); | |
| 215 void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); | |
| 216 #endif | |
| 217 | |
| 218 /* Ignore the Mozilla build env's DEBUG unless ZLIB_DEBUG is also set. */ | |
| 219 #ifndef ZLIB_DEBUG | |
| 220 #undef DEBUG | |
| 221 #endif | |
| 222 | |
| 223 /* Diagnostic functions */ | |
| 224 #ifdef DEBUG | |
| 225 # include <stdio.h> | |
| 226 extern int ZLIB_INTERNAL z_verbose; | |
| 227 extern void ZLIB_INTERNAL z_error OF((char *m)); | |
| 228 # define Assert(cond,msg) {if(!(cond)) z_error(msg);} | |
| 229 # define Trace(x) {if (z_verbose>=0) fprintf x ;} | |
| 230 # define Tracev(x) {if (z_verbose>0) fprintf x ;} | |
| 231 # define Tracevv(x) {if (z_verbose>1) fprintf x ;} | |
| 232 # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} | |
| 233 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} | |
| 234 #else | |
| 235 # define Assert(cond,msg) | |
| 236 # define Trace(x) | |
| 237 # define Tracev(x) | |
| 238 # define Tracevv(x) | |
| 239 # define Tracec(c,x) | |
| 240 # define Tracecv(c,x) | |
| 241 #endif | |
| 242 | |
| 243 #ifndef Z_SOLO | |
| 244 voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, | |
| 245 unsigned size)); | |
| 246 void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); | |
| 247 #endif | |
| 248 | |
| 249 #define ZALLOC(strm, items, size) \ | |
| 250 (*((strm)->zalloc))((strm)->opaque, (items), (size)) | |
| 251 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) | |
| 252 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} | |
| 253 | |
| 254 /* Reverse the bytes in a 32-bit value */ | |
| 255 #define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ | |
| 256 (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) | |
| 257 | |
| 258 #endif /* ZUTIL_H */ |
