Mercurial > repos > blastem
annotate zlib/zutil.h @ 1797:5ff8f0d28188
Make sure there are no races between main thread and audio thread around mix_buf. Fix lack of proper termination in shader loading code
author | Mike Pavone <pavone@retrodev.com> |
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date | Sun, 24 Mar 2019 13:31:22 -0700 |
parents | 00d788dac91a |
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1 /* zutil.h -- internal interface and configuration of the compression library |
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2 * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler |
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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 /* 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 |
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11 /* @(#) $Id$ */ |
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12 |
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13 #ifndef ZUTIL_H |
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14 #define ZUTIL_H |
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15 |
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16 #ifdef HAVE_HIDDEN |
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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 |
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22 #include "zlib.h" |
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23 |
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24 #if defined(STDC) && !defined(Z_SOLO) |
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25 # if !(defined(_WIN32_WCE) && defined(_MSC_VER)) |
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26 # include <stddef.h> |
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27 # endif |
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28 # include <string.h> |
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29 # include <stdlib.h> |
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30 #endif |
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31 |
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32 #ifdef Z_SOLO |
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33 typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */ |
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34 #endif |
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35 |
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36 #ifndef local |
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37 # define local static |
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38 #endif |
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39 /* since "static" is used to mean two completely different things in C, we |
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40 define "local" for the non-static meaning of "static", for readability |
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41 (compile with -Dlocal if your debugger can't find static symbols) */ |
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42 |
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43 typedef unsigned char uch; |
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44 typedef uch FAR uchf; |
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45 typedef unsigned short ush; |
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46 typedef ush FAR ushf; |
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47 typedef unsigned long ulg; |
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48 |
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49 extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ |
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50 /* (size given to avoid silly warnings with Visual C++) */ |
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51 |
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52 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] |
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53 |
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54 #define ERR_RETURN(strm,err) \ |
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55 return (strm->msg = ERR_MSG(err), (err)) |
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56 /* To be used only when the state is known to be valid */ |
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57 |
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58 /* common constants */ |
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59 |
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60 #ifndef DEF_WBITS |
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61 # define DEF_WBITS MAX_WBITS |
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62 #endif |
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63 /* default windowBits for decompression. MAX_WBITS is for compression only */ |
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64 |
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65 #if MAX_MEM_LEVEL >= 8 |
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66 # define DEF_MEM_LEVEL 8 |
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67 #else |
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68 # define DEF_MEM_LEVEL MAX_MEM_LEVEL |
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69 #endif |
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70 /* default memLevel */ |
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71 |
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72 #define STORED_BLOCK 0 |
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73 #define STATIC_TREES 1 |
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74 #define DYN_TREES 2 |
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75 /* The three kinds of block type */ |
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76 |
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77 #define MIN_MATCH 3 |
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78 #define MAX_MATCH 258 |
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79 /* The minimum and maximum match lengths */ |
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80 |
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81 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ |
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82 |
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83 /* target dependencies */ |
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84 |
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85 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) |
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86 # define OS_CODE 0x00 |
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87 # ifndef Z_SOLO |
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88 # if defined(__TURBOC__) || defined(__BORLANDC__) |
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89 # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) |
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90 /* Allow compilation with ANSI keywords only enabled */ |
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91 void _Cdecl farfree( void *block ); |
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92 void *_Cdecl farmalloc( unsigned long nbytes ); |
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93 # else |
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94 # include <alloc.h> |
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95 # endif |
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96 # else /* MSC or DJGPP */ |
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97 # include <malloc.h> |
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98 # endif |
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99 # endif |
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100 #endif |
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101 |
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102 #ifdef AMIGA |
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103 # define OS_CODE 1 |
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104 #endif |
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105 |
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106 #if defined(VAXC) || defined(VMS) |
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107 # define OS_CODE 2 |
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108 # define F_OPEN(name, mode) \ |
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109 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") |
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110 #endif |
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111 |
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112 #ifdef __370__ |
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113 # if __TARGET_LIB__ < 0x20000000 |
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114 # define OS_CODE 4 |
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115 # elif __TARGET_LIB__ < 0x40000000 |
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116 # define OS_CODE 11 |
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117 # else |
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118 # define OS_CODE 8 |
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119 # endif |
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120 #endif |
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121 |
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122 #if defined(ATARI) || defined(atarist) |
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123 # define OS_CODE 5 |
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124 #endif |
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125 |
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126 #ifdef OS2 |
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127 # define OS_CODE 6 |
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128 # if defined(M_I86) && !defined(Z_SOLO) |
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129 # include <malloc.h> |
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130 # endif |
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131 #endif |
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132 |
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133 #if defined(MACOS) || defined(TARGET_OS_MAC) |
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134 # define OS_CODE 7 |
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135 # ifndef Z_SOLO |
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136 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os |
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137 # include <unix.h> /* for fdopen */ |
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138 # else |
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139 # ifndef fdopen |
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140 # define fdopen(fd,mode) NULL /* No fdopen() */ |
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141 # endif |
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142 # endif |
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143 # endif |
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144 #endif |
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145 |
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146 #ifdef __acorn |
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147 # define OS_CODE 13 |
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148 #endif |
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149 |
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150 #if defined(WIN32) && !defined(__CYGWIN__) |
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151 # define OS_CODE 10 |
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152 #endif |
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153 |
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154 #ifdef _BEOS_ |
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155 # define OS_CODE 16 |
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156 #endif |
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157 |
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158 #ifdef __TOS_OS400__ |
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159 # define OS_CODE 18 |
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160 #endif |
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161 |
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162 #ifdef __APPLE__ |
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163 # define OS_CODE 19 |
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164 #endif |
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165 |
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166 #if defined(_BEOS_) || defined(RISCOS) |
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167 # define fdopen(fd,mode) NULL /* No fdopen() */ |
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168 #endif |
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169 |
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170 #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX |
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171 # if defined(_WIN32_WCE) |
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172 # define fdopen(fd,mode) NULL /* No fdopen() */ |
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173 # ifndef _PTRDIFF_T_DEFINED |
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174 typedef int ptrdiff_t; |
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175 # define _PTRDIFF_T_DEFINED |
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176 # endif |
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177 # else |
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178 # define fdopen(fd,type) _fdopen(fd,type) |
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179 # endif |
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180 #endif |
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181 |
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182 #if defined(__BORLANDC__) && !defined(MSDOS) |
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183 #pragma warn -8004 |
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184 #pragma warn -8008 |
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185 #pragma warn -8066 |
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186 #endif |
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187 |
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188 /* provide prototypes for these when building zlib without LFS */ |
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189 #if !defined(_WIN32) && \ |
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190 (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0) |
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191 ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); |
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192 ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); |
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193 #endif |
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194 |
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195 /* common defaults */ |
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196 |
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197 #ifndef OS_CODE |
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198 # define OS_CODE 3 /* assume Unix */ |
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199 #endif |
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200 |
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201 #ifndef F_OPEN |
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202 # define F_OPEN(name, mode) fopen((name), (mode)) |
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203 #endif |
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204 |
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205 /* functions */ |
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206 |
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207 #if defined(pyr) || defined(Z_SOLO) |
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208 # define NO_MEMCPY |
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209 #endif |
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210 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) |
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211 /* Use our own functions for small and medium model with MSC <= 5.0. |
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212 * You may have to use the same strategy for Borland C (untested). |
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213 * The __SC__ check is for Symantec. |
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214 */ |
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215 # define NO_MEMCPY |
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216 #endif |
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217 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) |
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218 # define HAVE_MEMCPY |
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219 #endif |
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220 #ifdef HAVE_MEMCPY |
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221 # ifdef SMALL_MEDIUM /* MSDOS small or medium model */ |
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222 # define zmemcpy _fmemcpy |
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223 # define zmemcmp _fmemcmp |
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224 # define zmemzero(dest, len) _fmemset(dest, 0, len) |
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225 # else |
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226 # define zmemcpy memcpy |
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227 # define zmemcmp memcmp |
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228 # define zmemzero(dest, len) memset(dest, 0, len) |
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229 # endif |
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230 #else |
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231 void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); |
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232 int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); |
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233 void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); |
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234 #endif |
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235 |
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236 /* Diagnostic functions */ |
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237 #ifdef ZLIB_DEBUG |
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238 # include <stdio.h> |
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239 extern int ZLIB_INTERNAL z_verbose; |
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240 extern void ZLIB_INTERNAL z_error OF((char *m)); |
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241 # define Assert(cond,msg) {if(!(cond)) z_error(msg);} |
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242 # define Trace(x) {if (z_verbose>=0) fprintf x ;} |
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243 # define Tracev(x) {if (z_verbose>0) fprintf x ;} |
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244 # define Tracevv(x) {if (z_verbose>1) fprintf x ;} |
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245 # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} |
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246 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} |
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247 #else |
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248 # define Assert(cond,msg) |
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249 # define Trace(x) |
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250 # define Tracev(x) |
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251 # define Tracevv(x) |
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252 # define Tracec(c,x) |
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253 # define Tracecv(c,x) |
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254 #endif |
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255 |
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256 #ifndef Z_SOLO |
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257 voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, |
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258 unsigned size)); |
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259 void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); |
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260 #endif |
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261 |
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262 #define ZALLOC(strm, items, size) \ |
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263 (*((strm)->zalloc))((strm)->opaque, (items), (size)) |
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264 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) |
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265 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} |
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266 |
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267 /* Reverse the bytes in a 32-bit value */ |
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268 #define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ |
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269 (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) |
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270 |
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271 #endif /* ZUTIL_H */ |