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Rev | Author | Line No. | Line |
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1896 | serge | 1 | /* zutil.h -- internal interface and configuration of the compression library |
2 | * Copyright (C) 1995-2010 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 | |||
6 | /* WARNING: this file should *not* be used by applications. It is |
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7 | part of the implementation of the compression library and is |
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8 | subject to change. Applications should only use zlib.h. |
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9 | */ |
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10 | |||
11 | /* @(#) $Id$ */ |
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12 | |||
13 | #ifndef ZUTIL_H |
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14 | #define ZUTIL_H |
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15 | |||
16 | #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) |
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17 | # define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) |
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18 | #else |
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19 | # define ZLIB_INTERNAL |
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20 | #endif |
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21 | |||
22 | #include "zlib.h" |
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23 | |||
24 | #ifdef STDC |
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25 | # if !(defined(_WIN32_WCE) && defined(_MSC_VER)) |
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26 | # include |
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27 | # endif |
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28 | # include |
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29 | # include |
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30 | #endif |
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31 | |||
32 | #ifndef local |
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33 | # define local static |
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34 | #endif |
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35 | /* compile with -Dlocal if your debugger can't find static symbols */ |
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36 | |||
37 | typedef unsigned char uch; |
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38 | typedef uch FAR uchf; |
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39 | typedef unsigned short ush; |
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40 | typedef ush FAR ushf; |
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41 | typedef unsigned long ulg; |
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42 | |||
43 | extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ |
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44 | /* (size given to avoid silly warnings with Visual C++) */ |
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45 | |||
46 | #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] |
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47 | |||
48 | #define ERR_RETURN(strm,err) \ |
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49 | return (strm->msg = (char*)ERR_MSG(err), (err)) |
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50 | /* To be used only when the state is known to be valid */ |
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51 | |||
52 | /* common constants */ |
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53 | |||
54 | #ifndef DEF_WBITS |
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55 | # define DEF_WBITS MAX_WBITS |
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56 | #endif |
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57 | /* default windowBits for decompression. MAX_WBITS is for compression only */ |
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58 | |||
59 | #if MAX_MEM_LEVEL >= 8 |
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60 | # define DEF_MEM_LEVEL 8 |
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61 | #else |
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62 | # define DEF_MEM_LEVEL MAX_MEM_LEVEL |
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63 | #endif |
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64 | /* default memLevel */ |
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65 | |||
66 | #define STORED_BLOCK 0 |
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67 | #define STATIC_TREES 1 |
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68 | #define DYN_TREES 2 |
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69 | /* The three kinds of block type */ |
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70 | |||
71 | #define MIN_MATCH 3 |
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72 | #define MAX_MATCH 258 |
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73 | /* The minimum and maximum match lengths */ |
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74 | |||
75 | #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ |
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76 | |||
77 | /* target dependencies */ |
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78 | |||
79 | #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) |
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80 | # define OS_CODE 0x00 |
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81 | # if defined(__TURBOC__) || defined(__BORLANDC__) |
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82 | # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) |
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83 | /* Allow compilation with ANSI keywords only enabled */ |
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84 | void _Cdecl farfree( void *block ); |
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85 | void *_Cdecl farmalloc( unsigned long nbytes ); |
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86 | # else |
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87 | # include |
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88 | # endif |
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89 | # else /* MSC or DJGPP */ |
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90 | # include |
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91 | # endif |
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92 | #endif |
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93 | |||
94 | #ifdef AMIGA |
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95 | # define OS_CODE 0x01 |
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96 | #endif |
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97 | |||
98 | #if defined(VAXC) || defined(VMS) |
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99 | # define OS_CODE 0x02 |
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100 | # define F_OPEN(name, mode) \ |
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101 | fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") |
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102 | #endif |
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103 | |||
104 | #if defined(ATARI) || defined(atarist) |
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105 | # define OS_CODE 0x05 |
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106 | #endif |
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107 | |||
108 | #ifdef OS2 |
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109 | # define OS_CODE 0x06 |
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110 | # ifdef M_I86 |
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111 | # include |
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112 | # endif |
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113 | #endif |
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114 | |||
115 | #if defined(MACOS) || defined(TARGET_OS_MAC) |
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116 | # define OS_CODE 0x07 |
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117 | # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os |
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118 | # include |
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119 | # else |
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120 | # ifndef fdopen |
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121 | # define fdopen(fd,mode) NULL /* No fdopen() */ |
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122 | # endif |
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123 | # endif |
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124 | #endif |
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125 | |||
126 | #ifdef TOPS20 |
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127 | # define OS_CODE 0x0a |
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128 | #endif |
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129 | |||
130 | #ifdef WIN32 |
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131 | # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ |
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132 | # define OS_CODE 0x0b |
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133 | # endif |
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134 | #endif |
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135 | |||
136 | #ifdef __50SERIES /* Prime/PRIMOS */ |
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137 | # define OS_CODE 0x0f |
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138 | #endif |
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139 | |||
140 | #if defined(_BEOS_) || defined(RISCOS) |
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141 | # define fdopen(fd,mode) NULL /* No fdopen() */ |
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142 | #endif |
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143 | |||
144 | #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX |
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145 | # if defined(_WIN32_WCE) |
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146 | # define fdopen(fd,mode) NULL /* No fdopen() */ |
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147 | # ifndef _PTRDIFF_T_DEFINED |
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148 | typedef int ptrdiff_t; |
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149 | # define _PTRDIFF_T_DEFINED |
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150 | # endif |
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151 | # else |
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152 | # define fdopen(fd,type) _fdopen(fd,type) |
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153 | # endif |
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154 | #endif |
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155 | |||
156 | #if defined(__BORLANDC__) |
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157 | #pragma warn -8004 |
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158 | #pragma warn -8008 |
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159 | #pragma warn -8066 |
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160 | #endif |
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161 | |||
162 | /* provide prototypes for these when building zlib without LFS */ |
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163 | #if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0 |
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164 | ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); |
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165 | ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); |
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166 | #endif |
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167 | |||
168 | /* common defaults */ |
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169 | |||
170 | #ifndef OS_CODE |
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171 | # define OS_CODE 0x03 /* assume Unix */ |
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172 | #endif |
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173 | |||
174 | #ifndef F_OPEN |
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175 | # define F_OPEN(name, mode) fopen((name), (mode)) |
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176 | #endif |
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177 | |||
178 | /* functions */ |
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179 | |||
180 | #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) |
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181 | # ifndef HAVE_VSNPRINTF |
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182 | # define HAVE_VSNPRINTF |
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183 | # endif |
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184 | #endif |
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185 | #if defined(__CYGWIN__) |
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186 | # ifndef HAVE_VSNPRINTF |
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187 | # define HAVE_VSNPRINTF |
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188 | # endif |
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189 | #endif |
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190 | #ifndef HAVE_VSNPRINTF |
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191 | # ifdef MSDOS |
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192 | /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), |
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193 | but for now we just assume it doesn't. */ |
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194 | # define NO_vsnprintf |
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195 | # endif |
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196 | # ifdef __TURBOC__ |
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197 | # define NO_vsnprintf |
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198 | # endif |
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199 | # ifdef WIN32 |
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200 | /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ |
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201 | # if !defined(vsnprintf) && !defined(NO_vsnprintf) |
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202 | # if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 ) |
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203 | # define vsnprintf _vsnprintf |
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204 | # endif |
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205 | # endif |
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206 | # endif |
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207 | # ifdef __SASC |
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208 | # define NO_vsnprintf |
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209 | # endif |
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210 | #endif |
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211 | #ifdef VMS |
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212 | # define NO_vsnprintf |
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213 | #endif |
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214 | |||
215 | #if defined(pyr) |
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216 | # define NO_MEMCPY |
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217 | #endif |
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218 | #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) |
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219 | /* Use our own functions for small and medium model with MSC <= 5.0. |
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220 | * You may have to use the same strategy for Borland C (untested). |
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221 | * The __SC__ check is for Symantec. |
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222 | */ |
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223 | # define NO_MEMCPY |
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224 | #endif |
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225 | #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) |
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226 | # define HAVE_MEMCPY |
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227 | #endif |
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228 | #ifdef HAVE_MEMCPY |
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229 | # ifdef SMALL_MEDIUM /* MSDOS small or medium model */ |
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230 | # define zmemcpy _fmemcpy |
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231 | # define zmemcmp _fmemcmp |
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232 | # define zmemzero(dest, len) _fmemset(dest, 0, len) |
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233 | # else |
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234 | # define zmemcpy memcpy |
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235 | # define zmemcmp memcmp |
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236 | # define zmemzero(dest, len) memset(dest, 0, len) |
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237 | # endif |
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238 | #else |
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239 | void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); |
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240 | int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); |
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241 | void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); |
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242 | #endif |
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243 | |||
244 | /* Diagnostic functions */ |
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245 | #ifdef DEBUG |
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246 | # include |
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247 | extern int ZLIB_INTERNAL z_verbose; |
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248 | extern void ZLIB_INTERNAL z_error OF((char *m)); |
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249 | # define Assert(cond,msg) {if(!(cond)) z_error(msg);} |
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250 | # define Trace(x) {if (z_verbose>=0) fprintf x ;} |
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251 | # define Tracev(x) {if (z_verbose>0) fprintf x ;} |
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252 | # define Tracevv(x) {if (z_verbose>1) fprintf x ;} |
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253 | # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} |
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254 | # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} |
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255 | #else |
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256 | # define Assert(cond,msg) |
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257 | # define Trace(x) |
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258 | # define Tracev(x) |
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259 | # define Tracevv(x) |
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260 | # define Tracec(c,x) |
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261 | # define Tracecv(c,x) |
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262 | #endif |
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263 | |||
264 | |||
265 | voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, |
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266 | unsigned size)); |
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267 | void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); |
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268 | |||
269 | #define ZALLOC(strm, items, size) \ |
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270 | (*((strm)->zalloc))((strm)->opaque, (items), (size)) |
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271 | #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) |
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272 | #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} |
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273 | |||
274 | #endif /* ZUTIL_H */=>> |