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/src/FreeImage/Source/ZLib/zutil.h

https://bitbucket.org/cabalistic/ogredeps/
C++ Header | 248 lines | 180 code | 41 blank | 27 comment | 38 complexity | 6c5016fdd9f6824cde3637afbe282182 MD5 | raw file
  1/* zutil.h -- internal interface and configuration of the compression library
  2 * Copyright (C) 1995-2011 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: zutil.h,v 1.8 2012/02/05 18:10:25 drolon Exp $ */
 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#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
 41typedef unsigned char  uch;
 42typedef uch FAR uchf;
 43typedef unsigned short ush;
 44typedef ush FAR ushf;
 45typedef unsigned long  ulg;
 46
 47extern 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 = (char*)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) && (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
172    ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
173    ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
174#endif
175
176        /* common defaults */
177
178#ifndef OS_CODE
179#  define OS_CODE  0x03  /* assume Unix */
180#endif
181
182#ifndef F_OPEN
183#  define F_OPEN(name, mode) fopen((name), (mode))
184#endif
185
186         /* functions */
187
188#if defined(pyr) || defined(Z_SOLO)
189#  define NO_MEMCPY
190#endif
191#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
192 /* Use our own functions for small and medium model with MSC <= 5.0.
193  * You may have to use the same strategy for Borland C (untested).
194  * The __SC__ check is for Symantec.
195  */
196#  define NO_MEMCPY
197#endif
198#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
199#  define HAVE_MEMCPY
200#endif
201#ifdef HAVE_MEMCPY
202#  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
203#    define zmemcpy _fmemcpy
204#    define zmemcmp _fmemcmp
205#    define zmemzero(dest, len) _fmemset(dest, 0, len)
206#  else
207#    define zmemcpy memcpy
208#    define zmemcmp memcmp
209#    define zmemzero(dest, len) memset(dest, 0, len)
210#  endif
211#else
212   void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
213   int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
214   void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
215#endif
216
217/* Diagnostic functions */
218#ifdef DEBUG
219#  include <stdio.h>
220   extern int ZLIB_INTERNAL z_verbose;
221   extern void ZLIB_INTERNAL z_error OF((char *m));
222#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
223#  define Trace(x) {if (z_verbose>=0) fprintf x ;}
224#  define Tracev(x) {if (z_verbose>0) fprintf x ;}
225#  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
226#  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
227#  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
228#else
229#  define Assert(cond,msg)
230#  define Trace(x)
231#  define Tracev(x)
232#  define Tracevv(x)
233#  define Tracec(c,x)
234#  define Tracecv(c,x)
235#endif
236
237#ifndef Z_SOLO
238   voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
239                                    unsigned size));
240   void ZLIB_INTERNAL zcfree  OF((voidpf opaque, voidpf ptr));
241#endif
242
243#define ZALLOC(strm, items, size) \
244           (*((strm)->zalloc))((strm)->opaque, (items), (size))
245#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
246#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
247
248#endif /* ZUTIL_H */