reactos/lib/freetype/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 #    include <malloc.h>
  84 #  endif
  85 #endif
  86
  87 #ifdef OS2
  88 #  define OS_CODE  0x06
  89 #endif
  90
  91 #ifdef WIN32 /* Window 95 & Windows NT */
  92 #  define OS_CODE  0x0b
  93 #endif
  94
  95 #if defined(VAXC) || defined(VMS)
  96 #  define OS_CODE  0x02
  97 #  define F_OPEN(name, mode) \
  98      fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
  99 #endif
 100
 101 #ifdef AMIGA
 102 #  define OS_CODE  0x01
 103 #endif
 104
 105 #if defined(ATARI) || defined(atarist)
 106 #  define OS_CODE  0x05
 107 #endif
 108
 109 #if defined(MACOS) || defined(TARGET_OS_MAC)
 110 #  define OS_CODE  0x07
 111 #  if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
 112 #    include <unix.h> /* for fdopen */
 113 #  else
 114 #    ifndef fdopen
 115 #      define fdopen(fd,mode) NULL /* No fdopen() */
 116 #    endif
 117 #  endif
 118 #endif
 119
 120 #ifdef __50SERIES /* Prime/PRIMOS */
 121 #  define OS_CODE  0x0F
 122 #endif
 123
 124 #ifdef TOPS20
 125 #  define OS_CODE  0x0a
 126 #endif
 127
 128 #if defined(_BEOS_) || defined(RISCOS)
 129 #  define fdopen(fd,mode) NULL /* No fdopen() */
 130 #endif
 131
 132 #if (defined(_MSC_VER) && (_MSC_VER > 600))
 133 #  define fdopen(fd,type)  _fdopen(fd,type)
 134 #endif
 135
 136
 137         /* Common defaults */
 138
 139 #ifndef OS_CODE
 140 #  define OS_CODE  0x03  /* assume Unix */
 141 #endif
 142
 143 #ifndef F_OPEN
 144 #  define F_OPEN(name, mode) fopen((name), (mode))
 145 #endif
 146
 147          /* functions */
 148
 149 #ifdef HAVE_STRERROR
 150    extern char *strerror OF((int));
 151 #  define zstrerror(errnum) strerror(errnum)
 152 #else
 153 #  define zstrerror(errnum) ""
 154 #endif
 155
 156 #if defined(pyr)
 157 #  define NO_MEMCPY
 158 #endif
 159 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
 160  /* Use our own functions for small and medium model with MSC <= 5.0.
 161   * You may have to use the same strategy for Borland C (untested).
 162   * The __SC__ check is for Symantec.
 163   */
 164 #  define NO_MEMCPY
 165 #endif
 166 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
 167 #  define HAVE_MEMCPY
 168 #endif
 169 #ifdef HAVE_MEMCPY
 170 #  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
 171 #    define zmemcpy _fmemcpy
 172 #    define zmemcmp _fmemcmp
 173 #    define zmemzero(dest, len) _fmemset(dest, 0, len)
 174 #  else
 175 #    define zmemcpy ft_memcpy
 176 #    define zmemcmp ft_memcmp
 177 #    define zmemzero(dest, len) ft_memset(dest, 0, len)
 178 #  endif
 179 #else
 180    extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));
 181    extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));
 182    extern void zmemzero OF((Bytef* dest, uInt len));
 183 #endif
 184
 185 /* Diagnostic functions */
 186 #ifdef DEBUG
 187 #  include <stdio.h>
 188    extern int z_verbose;
 189    extern void z_error    OF((char *m));
 190 #  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
 191 #  define Trace(x) {if (z_verbose>=0) fprintf x ;}
 192 #  define Tracev(x) {if (z_verbose>0) fprintf x ;}
 193 #  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
 194 #  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
 195 #  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
 196 #else
 197 #  define Assert(cond,msg)
 198 #  define Trace(x)
 199 #  define Tracev(x)
 200 #  define Tracevv(x)
 201 #  define Tracec(c,x)
 202 #  define Tracecv(c,x)
 203 #endif
 204
 205
 206 typedef uLong (*check_func) OF((uLong check, const Bytef *buf,
 207                                        uInt len));
 208 local voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
 209 local void   zcfree  OF((voidpf opaque, voidpf ptr));
 210
 211 #define ZALLOC(strm, items, size) \
 212            (*((strm)->zalloc))((strm)->opaque, (items), (size))
 213 #define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
 214 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
 215
 216 #endif /* _Z_UTIL_H */