thirdparty/freetype-2.3.12/src/gzip/zutil.h

   1 /* zutil.h -- internal interface and configuration of the compression library
   2  * Copyright (C) 1995-2002 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 _Z_UTIL_H
  14 #define _Z_UTIL_H
  15
  16 #include "zlib.h"
  17
  18 #ifdef STDC
  19 #  include <stddef.h>
  20 #  include <string.h>
  21 #  include <stdlib.h>
  22 #endif
  23 #ifdef NO_ERRNO_H
  24     extern int errno;
  25 #else
  26 #   include <errno.h>
  27 #endif
  28
  29 #ifndef local
  30 #  define local static
  31 #endif
  32 /* compile with -Dlocal if your debugger can't find static symbols */
  33
  34 typedef unsigned char  uch;
  35 typedef uch FAR uchf;
  36 typedef unsigned short ush;
  37 typedef ush FAR ushf;
  38 typedef unsigned long  ulg;
  39
  40
  41 #define ERR_RETURN(strm,err) \
  42   return (strm->msg = (char*)ERR_MSG(err), (err))
  43 /* To be used only when the state is known to be valid */
  44
  45         /* common constants */
  46
  47 #ifndef DEF_WBITS
  48 #  define DEF_WBITS MAX_WBITS
  49 #endif
  50 /* default windowBits for decompression. MAX_WBITS is for compression only */
  51
  52 #if MAX_MEM_LEVEL >= 8
  53 #  define DEF_MEM_LEVEL 8
  54 #else
  55 #  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
  56 #endif
  57 /* default memLevel */
  58
  59 #define STORED_BLOCK 0
  60 #define STATIC_TREES 1
  61 #define DYN_TREES    2
  62 /* The three kinds of block type */
  63
  64 #define MIN_MATCH  3
  65 #define MAX_MATCH  258
  66 /* The minimum and maximum match lengths */
  67
  68 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
  69
  70         /* target dependencies */
  71
  72 #ifdef MSDOS
  73 #  define OS_CODE  0x00
  74 #  if defined(__TURBOC__) || defined(__BORLANDC__)
  75 #    if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
  76        /* Allow compilation with ANSI keywords only enabled */
  77        void _Cdecl farfree( void *block );
  78        void *_Cdecl farmalloc( unsigned long nbytes );
  79 #    else
  80 #     include <alloc.h>
  81 #    endif
  82 #  else /* MSC or DJGPP */
  83 #  endif
  84 #endif
  85
  86 #ifdef OS2
  87 #  define OS_CODE  0x06
  88 #endif
  89
  90 #ifdef WIN32 /* Window 95 & Windows NT */
  91 #  define OS_CODE  0x0b
  92 #endif
  93
  94 #if defined(VAXC) || defined(VMS)
  95 #  define OS_CODE  0x02
  96 #  define F_OPEN(name, mode) \
  97      ft_fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
  98 #endif
  99
 100 #ifdef AMIGA
 101 #  define OS_CODE  0x01
 102 #endif
 103
 104 #if defined(ATARI) || defined(atarist)
 105 #  define OS_CODE  0x05
 106 #endif
 107
 108 #if defined(MACOS) || defined(TARGET_OS_MAC)
 109 #  define OS_CODE  0x07
 110 #  if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
 111 #    include <unix.h> /* for fdopen */
 112 #  else
 113 #    ifndef fdopen
 114 #      define fdopen(fd,mode) NULL /* No fdopen() */
 115 #    endif
 116 #  endif
 117 #endif
 118
 119 #ifdef __50SERIES /* Prime/PRIMOS */
 120 #  define OS_CODE  0x0F
 121 #endif
 122
 123 #ifdef TOPS20
 124 #  define OS_CODE  0x0a
 125 #endif
 126
 127 #if defined(_BEOS_) || defined(RISCOS)
 128 #  define fdopen(fd,mode) NULL /* No fdopen() */
 129 #endif
 130
 131 #if (defined(_MSC_VER) && (_MSC_VER > 600))
 132 #  define fdopen(fd,type)  _fdopen(fd,type)
 133 #endif
 134
 135
 136         /* Common defaults */
 137
 138 #ifndef OS_CODE
 139 #  define OS_CODE  0x03  /* assume Unix */
 140 #endif
 141
 142 #ifndef F_OPEN
 143 #  define F_OPEN(name, mode) ft_fopen((name), (mode))
 144 #endif
 145
 146          /* functions */
 147
 148 #ifdef HAVE_STRERROR
 149    extern char *strerror OF((int));
 150 #  define zstrerror(errnum) strerror(errnum)
 151 #else
 152 #  define zstrerror(errnum) ""
 153 #endif
 154
 155 #if defined(pyr)
 156 #  define NO_MEMCPY
 157 #endif
 158 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
 159  /* Use our own functions for small and medium model with MSC <= 5.0.
 160   * You may have to use the same strategy for Borland C (untested).
 161   * The __SC__ check is for Symantec.
 162   */
 163 #  define NO_MEMCPY
 164 #endif
 165 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
 166 #  define HAVE_MEMCPY
 167 #endif
 168 #ifdef HAVE_MEMCPY
 169 #  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
 170 #    define zmemcpy _fmemcpy
 171 #    define zmemcmp _fmemcmp
 172 #    define zmemzero(dest, len) _fmemset(dest, 0, len)
 173 #  else
 174 #    define zmemcpy ft_memcpy
 175 #    define zmemcmp ft_memcmp
 176 #    define zmemzero(dest, len) ft_memset(dest, 0, len)
 177 #  endif
 178 #else
 179    extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));
 180    extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));
 181    extern void zmemzero OF((Bytef* dest, uInt len));
 182 #endif
 183
 184 /* Diagnostic functions */
 185 #ifdef DEBUG
 186 #  include <stdio.h>
 187    extern int z_verbose;
 188    extern void z_error    OF((char *m));
 189 #  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
 190 #  define Trace(x) {if (z_verbose>=0) fprintf x ;}
 191 #  define Tracev(x) {if (z_verbose>0) fprintf x ;}
 192 #  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
 193 #  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
 194 #  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
 195 #else
 196 #  define Assert(cond,msg)
 197 #  define Trace(x)
 198 #  define Tracev(x)
 199 #  define Tracevv(x)
 200 #  define Tracec(c,x)
 201 #  define Tracecv(c,x)
 202 #endif
 203
 204
 205 typedef uLong (*check_func) OF((uLong check, const Bytef *buf,
 206                                 uInt len));
 207 local voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
 208 local void   zcfree  OF((voidpf opaque, voidpf ptr));
 209
 210 #define ZALLOC(strm, items, size) \
 211            (*((strm)->zalloc))((strm)->opaque, (items), (size))
 212 #define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
 213 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
 214
 215 #endif /* _Z_UTIL_H */