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/thirdparty/zlib/zutil.h

http://crashrpt.googlecode.com/
C++ Header | 274 lines | 202 code | 42 blank | 30 comment | 39 complexity | efea369db391e3e89616e85d4d2186bf MD5 | raw file
  1/* zutil.h -- internal interface and configuration of the compression library
  2 * Copyright (C) 1995-2010 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#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
 17#  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
 18#else
 19#  define ZLIB_INTERNAL
 20#endif
 21
 22#include "zlib.h"
 23
 24#ifdef STDC
 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#ifndef local
 33#  define local static
 34#endif
 35/* compile with -Dlocal if your debugger can't find static symbols */
 36
 37typedef unsigned char  uch;
 38typedef uch FAR uchf;
 39typedef unsigned short ush;
 40typedef ush FAR ushf;
 41typedef unsigned long  ulg;
 42
 43extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
 44/* (size given to avoid silly warnings with Visual C++) */
 45
 46#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
 47
 48#define ERR_RETURN(strm,err) \
 49  return (strm->msg = (char*)ERR_MSG(err), (err))
 50/* To be used only when the state is known to be valid */
 51
 52        /* common constants */
 53
 54#ifndef DEF_WBITS
 55#  define DEF_WBITS MAX_WBITS
 56#endif
 57/* default windowBits for decompression. MAX_WBITS is for compression only */
 58
 59#if MAX_MEM_LEVEL >= 8
 60#  define DEF_MEM_LEVEL 8
 61#else
 62#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
 63#endif
 64/* default memLevel */
 65
 66#define STORED_BLOCK 0
 67#define STATIC_TREES 1
 68#define DYN_TREES    2
 69/* The three kinds of block type */
 70
 71#define MIN_MATCH  3
 72#define MAX_MATCH  258
 73/* The minimum and maximum match lengths */
 74
 75#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
 76
 77        /* target dependencies */
 78
 79#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
 80#  define OS_CODE  0x00
 81#  if defined(__TURBOC__) || defined(__BORLANDC__)
 82#    if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
 83       /* Allow compilation with ANSI keywords only enabled */
 84       void _Cdecl farfree( void *block );
 85       void *_Cdecl farmalloc( unsigned long nbytes );
 86#    else
 87#      include <alloc.h>
 88#    endif
 89#  else /* MSC or DJGPP */
 90#    include <malloc.h>
 91#  endif
 92#endif
 93
 94#ifdef AMIGA
 95#  define OS_CODE  0x01
 96#endif
 97
 98#if defined(VAXC) || defined(VMS)
 99#  define OS_CODE  0x02
100#  define F_OPEN(name, mode) \
101     fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
102#endif
103
104#if defined(ATARI) || defined(atarist)
105#  define OS_CODE  0x05
106#endif
107
108#ifdef OS2
109#  define OS_CODE  0x06
110#  ifdef M_I86
111#    include <malloc.h>
112#  endif
113#endif
114
115#if defined(MACOS) || defined(TARGET_OS_MAC)
116#  define OS_CODE  0x07
117#  if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
118#    include <unix.h> /* for fdopen */
119#  else
120#    ifndef fdopen
121#      define fdopen(fd,mode) NULL /* No fdopen() */
122#    endif
123#  endif
124#endif
125
126#ifdef TOPS20
127#  define OS_CODE  0x0a
128#endif
129
130#ifdef WIN32
131#  ifndef __CYGWIN__  /* Cygwin is Unix, not Win32 */
132#    define OS_CODE  0x0b
133#  endif
134#endif
135
136#ifdef __50SERIES /* Prime/PRIMOS */
137#  define OS_CODE  0x0f
138#endif
139
140#if defined(_BEOS_) || defined(RISCOS)
141#  define fdopen(fd,mode) NULL /* No fdopen() */
142#endif
143
144#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
145#  if defined(_WIN32_WCE)
146#    define fdopen(fd,mode) NULL /* No fdopen() */
147#    ifndef _PTRDIFF_T_DEFINED
148       typedef int ptrdiff_t;
149#      define _PTRDIFF_T_DEFINED
150#    endif
151#  else
152#    define fdopen(fd,type)  _fdopen(fd,type)
153#  endif
154#endif
155
156#if defined(__BORLANDC__)
157  #pragma warn -8004
158  #pragma warn -8008
159  #pragma warn -8066
160#endif
161
162/* provide prototypes for these when building zlib without LFS */
163#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
164    ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
165    ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
166#endif
167
168        /* common defaults */
169
170#ifndef OS_CODE
171#  define OS_CODE  0x03  /* assume Unix */
172#endif
173
174#ifndef F_OPEN
175#  define F_OPEN(name, mode) fopen((name), (mode))
176#endif
177
178         /* functions */
179
180#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
181#  ifndef HAVE_VSNPRINTF
182#    define HAVE_VSNPRINTF
183#  endif
184#endif
185#if defined(__CYGWIN__)
186#  ifndef HAVE_VSNPRINTF
187#    define HAVE_VSNPRINTF
188#  endif
189#endif
190#ifndef HAVE_VSNPRINTF
191#  ifdef MSDOS
192     /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
193        but for now we just assume it doesn't. */
194#    define NO_vsnprintf
195#  endif
196#  ifdef __TURBOC__
197#    define NO_vsnprintf
198#  endif
199#  ifdef WIN32
200     /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
201#    if !defined(vsnprintf) && !defined(NO_vsnprintf)
202#      if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
203#         define vsnprintf _vsnprintf
204#      endif
205#    endif
206#  endif
207#  ifdef __SASC
208#    define NO_vsnprintf
209#  endif
210#endif
211#ifdef VMS
212#  define NO_vsnprintf
213#endif
214
215#if defined(pyr)
216#  define NO_MEMCPY
217#endif
218#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
219 /* Use our own functions for small and medium model with MSC <= 5.0.
220  * You may have to use the same strategy for Borland C (untested).
221  * The __SC__ check is for Symantec.
222  */
223#  define NO_MEMCPY
224#endif
225#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
226#  define HAVE_MEMCPY
227#endif
228#ifdef HAVE_MEMCPY
229#  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
230#    define zmemcpy _fmemcpy
231#    define zmemcmp _fmemcmp
232#    define zmemzero(dest, len) _fmemset(dest, 0, len)
233#  else
234#    define zmemcpy memcpy
235#    define zmemcmp memcmp
236#    define zmemzero(dest, len) memset(dest, 0, len)
237#  endif
238#else
239   void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
240   int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
241   void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
242#endif
243
244/* Diagnostic functions */
245#ifdef DEBUG
246#  include <stdio.h>
247   extern int ZLIB_INTERNAL z_verbose;
248   extern void ZLIB_INTERNAL z_error OF((char *m));
249#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
250#  define Trace(x) {if (z_verbose>=0) fprintf x ;}
251#  define Tracev(x) {if (z_verbose>0) fprintf x ;}
252#  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
253#  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
254#  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
255#else
256#  define Assert(cond,msg)
257#  define Trace(x)
258#  define Tracev(x)
259#  define Tracevv(x)
260#  define Tracec(c,x)
261#  define Tracecv(c,x)
262#endif
263
264
265voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
266                        unsigned size));
267void ZLIB_INTERNAL zcfree  OF((voidpf opaque, voidpf ptr));
268
269#define ZALLOC(strm, items, size) \
270           (*((strm)->zalloc))((strm)->opaque, (items), (size))
271#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
272#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
273
274#endif /* ZUTIL_H */