1 /* zconf.h -- configuration of the zlib compression library |
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2 * Copyright (C) 1995-2002 Jean-loup Gailly. |
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3 * For conditions of distribution and use, see copyright notice in zlib.h |
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4 */ |
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5 |
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6 /* @(#) $Id$ */ |
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7 |
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8 #ifndef _ZCONF_H |
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9 #define _ZCONF_H |
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10 |
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11 /* |
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12 * If you *really* need a unique prefix for all types and library functions, |
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13 * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. |
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14 */ |
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15 #ifdef Z_PREFIX |
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16 # define deflateInit_ z_deflateInit_ |
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17 # define deflate z_deflate |
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18 # define deflateEnd z_deflateEnd |
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19 # define inflateInit_ z_inflateInit_ |
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20 # define inflate z_inflate |
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21 # define inflateEnd z_inflateEnd |
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22 # define deflateInit2_ z_deflateInit2_ |
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23 # define deflateSetDictionary z_deflateSetDictionary |
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24 # define deflateCopy z_deflateCopy |
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25 # define deflateReset z_deflateReset |
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26 # define deflateParams z_deflateParams |
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27 # define inflateInit2_ z_inflateInit2_ |
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28 # define inflateSetDictionary z_inflateSetDictionary |
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29 # define inflateSync z_inflateSync |
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30 # define inflateSyncPoint z_inflateSyncPoint |
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31 # define inflateReset z_inflateReset |
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32 # define compress z_compress |
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33 # define compress2 z_compress2 |
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34 # define uncompress z_uncompress |
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35 # define adler32 z_adler32 |
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36 # define crc32 z_crc32 |
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37 # define get_crc_table z_get_crc_table |
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38 |
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39 # define Byte z_Byte |
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40 # define uInt z_uInt |
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41 # define uLong z_uLong |
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42 # define Bytef z_Bytef |
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43 # define charf z_charf |
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44 # define intf z_intf |
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45 # define uIntf z_uIntf |
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46 # define uLongf z_uLongf |
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47 # define voidpf z_voidpf |
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48 # define voidp z_voidp |
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49 #endif |
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50 |
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51 #if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) |
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52 # define WIN32 |
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53 #endif |
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54 #if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386) |
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55 # ifndef __32BIT__ |
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56 # define __32BIT__ |
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57 # endif |
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58 #endif |
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59 #if defined(__MSDOS__) && !defined(MSDOS) |
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60 # define MSDOS |
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61 #endif |
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62 |
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63 /* WinCE doesn't have errno.h */ |
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64 #ifdef _WIN32_WCE |
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65 # define NO_ERRNO_H |
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66 #endif |
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67 |
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68 |
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69 /* |
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70 * Compile with -DMAXSEG_64K if the alloc function cannot allocate more |
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71 * than 64k bytes at a time (needed on systems with 16-bit int). |
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72 */ |
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73 #if defined(MSDOS) && !defined(__32BIT__) |
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74 # define MAXSEG_64K |
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75 #endif |
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76 #ifdef MSDOS |
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77 # define UNALIGNED_OK |
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78 #endif |
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79 |
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80 #if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC) |
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81 # define STDC |
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82 #endif |
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83 #if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__) |
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84 # ifndef STDC |
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85 # define STDC |
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86 # endif |
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87 #endif |
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88 |
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89 #ifndef STDC |
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90 # ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ |
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91 # define const |
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92 # endif |
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93 #endif |
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94 |
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95 /* Some Mac compilers merge all .h files incorrectly: */ |
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96 #if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__) |
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97 # define NO_DUMMY_DECL |
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98 #endif |
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99 |
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100 /* Old Borland C and LCC incorrectly complains about missing returns: */ |
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101 #if defined(__BORLANDC__) && (__BORLANDC__ < 0x500) |
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102 # define NEED_DUMMY_RETURN |
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103 #endif |
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104 |
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105 #if defined(__LCC__) |
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106 # define NEED_DUMMY_RETURN |
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107 #endif |
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108 |
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109 /* Maximum value for memLevel in deflateInit2 */ |
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110 #ifndef MAX_MEM_LEVEL |
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111 # ifdef MAXSEG_64K |
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112 # define MAX_MEM_LEVEL 8 |
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113 # else |
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114 # define MAX_MEM_LEVEL 9 |
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115 # endif |
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116 #endif |
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117 |
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118 /* Maximum value for windowBits in deflateInit2 and inflateInit2. |
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119 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files |
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120 * created by gzip. (Files created by minigzip can still be extracted by |
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121 * gzip.) |
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122 */ |
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123 #ifndef MAX_WBITS |
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124 # define MAX_WBITS 15 /* 32K LZ77 window */ |
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125 #endif |
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126 |
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127 /* The memory requirements for deflate are (in bytes): |
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128 (1 << (windowBits+2)) + (1 << (memLevel+9)) |
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129 that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) |
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130 plus a few kilobytes for small objects. For example, if you want to reduce |
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131 the default memory requirements from 256K to 128K, compile with |
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132 make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" |
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133 Of course this will generally degrade compression (there's no free lunch). |
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134 |
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135 The memory requirements for inflate are (in bytes) 1 << windowBits |
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136 that is, 32K for windowBits=15 (default value) plus a few kilobytes |
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137 for small objects. |
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138 */ |
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139 |
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140 /* Type declarations */ |
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141 |
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142 #ifndef OF /* function prototypes */ |
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143 # ifdef STDC |
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144 # define OF(args) args |
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145 # else |
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146 # define OF(args) () |
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147 # endif |
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148 #endif |
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149 |
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150 /* The following definitions for FAR are needed only for MSDOS mixed |
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151 * model programming (small or medium model with some far allocations). |
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152 * This was tested only with MSC; for other MSDOS compilers you may have |
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153 * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, |
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154 * just define FAR to be empty. |
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155 */ |
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156 #if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__) |
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157 /* MSC small or medium model */ |
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158 # define SMALL_MEDIUM |
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159 # ifdef _MSC_VER |
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160 # define FAR _far |
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161 # else |
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162 # define FAR far |
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163 # endif |
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164 #endif |
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165 #if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__)) |
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166 # ifndef __32BIT__ |
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167 # define SMALL_MEDIUM |
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168 # define FAR _far |
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169 # endif |
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170 #endif |
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171 |
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172 /* Compile with -DZLIB_DLL for Windows DLL support */ |
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173 #if defined(ZLIB_DLL) |
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174 # if defined(_WINDOWS) || defined(WINDOWS) |
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175 # ifdef FAR |
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176 # undef FAR |
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177 # endif |
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178 # include <windows.h> |
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179 # define ZEXPORT(x) x WINAPI |
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180 # ifdef WIN32 |
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181 # define ZEXPORTVA(x) x WINAPIV |
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182 # else |
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183 # define ZEXPORTVA(x) x FAR _cdecl _export |
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184 # endif |
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185 # endif |
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186 # if defined (__BORLANDC__) |
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187 # if (__BORLANDC__ >= 0x0500) && defined (WIN32) |
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188 # include <windows.h> |
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189 # define ZEXPORT(x) x __declspec(dllexport) WINAPI |
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190 # define ZEXPORTRVA(x) x __declspec(dllexport) WINAPIV |
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191 # else |
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192 # if defined (_Windows) && defined (__DLL__) |
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193 # define ZEXPORT(x) x _export |
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194 # define ZEXPORTVA(x) x _export |
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195 # endif |
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196 # endif |
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197 # endif |
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198 #endif |
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199 |
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200 |
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201 #ifndef ZEXPORT |
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202 # define ZEXPORT(x) static x |
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203 #endif |
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204 #ifndef ZEXPORTVA |
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205 # define ZEXPORTVA(x) static x |
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206 #endif |
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207 #ifndef ZEXTERN |
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208 # define ZEXTERN(x) static x |
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209 #endif |
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210 #ifndef ZEXTERNDEF |
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211 # define ZEXTERNDEF(x) static x |
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212 #endif |
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213 |
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214 #ifndef FAR |
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215 # define FAR |
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216 #endif |
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217 |
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218 #if !defined(MACOS) && !defined(TARGET_OS_MAC) |
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219 typedef unsigned char Byte; /* 8 bits */ |
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220 #endif |
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221 typedef unsigned int uInt; /* 16 bits or more */ |
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222 typedef unsigned long uLong; /* 32 bits or more */ |
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223 |
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224 #ifdef SMALL_MEDIUM |
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225 /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ |
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226 # define Bytef Byte FAR |
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227 #else |
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228 typedef Byte FAR Bytef; |
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229 #endif |
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230 typedef char FAR charf; |
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231 typedef int FAR intf; |
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232 typedef uInt FAR uIntf; |
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233 typedef uLong FAR uLongf; |
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234 |
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235 #ifdef STDC |
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236 typedef void FAR *voidpf; |
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237 typedef void *voidp; |
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238 #else |
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239 typedef Byte FAR *voidpf; |
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240 typedef Byte *voidp; |
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241 #endif |
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242 |
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243 #ifdef HAVE_UNISTD_H |
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244 # include <sys/types.h> /* for off_t */ |
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245 # include <unistd.h> /* for SEEK_* and off_t */ |
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246 # define z_off_t off_t |
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247 #endif |
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248 #ifndef SEEK_SET |
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249 # define SEEK_SET 0 /* Seek from beginning of file. */ |
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250 # define SEEK_CUR 1 /* Seek from current position. */ |
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251 # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ |
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252 #endif |
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253 #ifndef z_off_t |
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254 # define z_off_t long |
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255 #endif |
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256 |
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257 /* MVS linker does not support external names larger than 8 bytes */ |
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258 #if defined(__MVS__) |
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259 # pragma map(deflateInit_,"DEIN") |
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260 # pragma map(deflateInit2_,"DEIN2") |
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261 # pragma map(deflateEnd,"DEEND") |
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262 # pragma map(inflateInit_,"ININ") |
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263 # pragma map(inflateInit2_,"ININ2") |
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264 # pragma map(inflateEnd,"INEND") |
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265 # pragma map(inflateSync,"INSY") |
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266 # pragma map(inflateSetDictionary,"INSEDI") |
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267 # pragma map(inflate_blocks,"INBL") |
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268 # pragma map(inflate_blocks_new,"INBLNE") |
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269 # pragma map(inflate_blocks_free,"INBLFR") |
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270 # pragma map(inflate_blocks_reset,"INBLRE") |
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271 # pragma map(inflate_codes_free,"INCOFR") |
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272 # pragma map(inflate_codes,"INCO") |
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273 # pragma map(inflate_fast,"INFA") |
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274 # pragma map(inflate_flush,"INFLU") |
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275 # pragma map(inflate_mask,"INMA") |
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276 # pragma map(inflate_set_dictionary,"INSEDI2") |
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277 # pragma map(inflate_copyright,"INCOPY") |
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278 # pragma map(inflate_trees_bits,"INTRBI") |
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279 # pragma map(inflate_trees_dynamic,"INTRDY") |
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280 # pragma map(inflate_trees_fixed,"INTRFI") |
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281 # pragma map(inflate_trees_free,"INTRFR") |
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282 #endif |
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283 |
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284 #endif /* _ZCONF_H */ |
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