1/* zutil.h -- internal interface and configuration of the compression library 2 * Copyright (C) 1995-2013 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 ZUTIL_H 14#define ZUTIL_H 15 16#include "../../../../include/fxcrt/fx_system.h" /* XYQ 2007-5-22 */ 17 18#ifdef HAVE_HIDDEN 19# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) 20#else 21# define ZLIB_INTERNAL 22#endif 23 24#include "zlib.h" 25 26#if defined(STDC) && !defined(Z_SOLO) 27# if !(defined(_WIN32_WCE) && defined(_MSC_VER)) 28# include <stddef.h> 29# endif 30# include <string.h> 31# include <stdlib.h> 32#endif 33 34#ifdef Z_SOLO 35 typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */ 36#endif 37 38#ifndef local 39# define local static 40#endif 41/* compile with -Dlocal if your debugger can't find static symbols */ 42 43typedef unsigned char uch; 44typedef uch FAR uchf; 45typedef unsigned short ush; 46typedef ush FAR ushf; 47typedef unsigned long ulg; 48 49extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ 50/* (size given to avoid silly warnings with Visual C++) */ 51 52#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] 53 54#define ERR_RETURN(strm,err) \ 55 return (strm->msg = ERR_MSG(err), (err)) 56/* To be used only when the state is known to be valid */ 57 58 /* common constants */ 59 60#ifndef DEF_WBITS 61# define DEF_WBITS MAX_WBITS 62#endif 63/* default windowBits for decompression. MAX_WBITS is for compression only */ 64 65#if MAX_MEM_LEVEL >= 8 66# define DEF_MEM_LEVEL 8 67#else 68# define DEF_MEM_LEVEL MAX_MEM_LEVEL 69#endif 70/* default memLevel */ 71 72#define STORED_BLOCK 0 73#define STATIC_TREES 1 74#define DYN_TREES 2 75/* The three kinds of block type */ 76 77#define MIN_MATCH 3 78#define MAX_MATCH 258 79/* The minimum and maximum match lengths */ 80 81#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ 82 83 /* target dependencies */ 84 85#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) 86# define OS_CODE 0x00 87# ifndef Z_SOLO 88# if defined(__TURBOC__) || defined(__BORLANDC__) 89# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) 90 /* Allow compilation with ANSI keywords only enabled */ 91 void _Cdecl farfree( void *block ); 92 void *_Cdecl farmalloc( unsigned long nbytes ); 93# else 94# include <alloc.h> 95# endif 96# else /* MSC or DJGPP */ 97# include <malloc.h> 98# endif 99# endif 100#endif 101 102#ifdef AMIGA 103# define OS_CODE 0x01 104#endif 105 106#if defined(VAXC) || defined(VMS) 107# define OS_CODE 0x02 108# define F_OPEN(name, mode) \ 109 FXSYS_fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") 110#endif 111 112#if defined(ATARI) || defined(atarist) 113# define OS_CODE 0x05 114#endif 115 116#ifdef OS2 117# define OS_CODE 0x06 118# if defined(M_I86) && !defined(Z_SOLO) 119# include <malloc.h> 120# endif 121#endif 122 123#if defined(MACOS) || defined(TARGET_OS_MAC) 124# define OS_CODE 0x07 125# ifndef Z_SOLO 126# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os 127# include <unix.h> /* for fdopen */ 128# else 129# ifndef fdopen 130# define fdopen(fd,mode) NULL /* No fdopen() */ 131# endif 132# endif 133# endif 134#endif 135 136#ifdef TOPS20 137# define OS_CODE 0x0a 138#endif 139 140#ifdef WIN32 141# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ 142# define OS_CODE 0x0b 143# endif 144#endif 145 146#ifdef __50SERIES /* Prime/PRIMOS */ 147# define OS_CODE 0x0f 148#endif 149 150#if defined(_BEOS_) || defined(RISCOS) 151# define fdopen(fd,mode) NULL /* No fdopen() */ 152#endif 153 154#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX 155# if defined(_WIN32_WCE) 156# define fdopen(fd,mode) NULL /* No fdopen() */ 157# ifndef _PTRDIFF_T_DEFINED 158 typedef int ptrdiff_t; 159# define _PTRDIFF_T_DEFINED 160# endif 161# else 162# define fdopen(fd,type) _fdopen(fd,type) 163# endif 164#endif 165 166#if defined(__BORLANDC__) && !defined(MSDOS) 167 #pragma warn -8004 168 #pragma warn -8008 169 #pragma warn -8066 170#endif 171 172/* provide prototypes for these when building zlib without LFS */ 173#if !defined(_WIN32) && \ 174 (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0) 175 ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); 176 ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); 177#endif 178 179 /* common defaults */ 180 181#ifndef OS_CODE 182# define OS_CODE 0x03 /* assume Unix */ 183#endif 184 185#ifndef F_OPEN 186# define F_OPEN(name, mode) FXSYS_fopen((name), (mode)) 187#endif 188 189 /* functions */ 190 191#if defined(pyr) || defined(Z_SOLO) 192# define NO_MEMCPY 193#endif 194#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) 195 /* Use our own functions for small and medium model with MSC <= 5.0. 196 * You may have to use the same strategy for Borland C (untested). 197 * The __SC__ check is for Symantec. 198 */ 199# define NO_MEMCPY 200#endif 201#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) 202# define HAVE_MEMCPY 203#endif 204#ifdef HAVE_MEMCPY 205# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ 206# define zmemcpy _fmemcpy 207# define zmemcmp _fmemcmp 208# define zmemzero(dest, len) _fmemset(dest, 0, len) 209# else 210# define zmemcpy FXSYS_memcpy32 211# define zmemcmp FXSYS_memcmp32 212# define zmemzero(dest, len) FXSYS_memset32(dest, 0, len) 213# endif 214#else 215 void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); 216 int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); 217 void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); 218#endif 219 220/* Diagnostic functions */ 221#ifdef DEBUG 222# include <stdio.h> 223 extern int ZLIB_INTERNAL z_verbose; 224 extern void ZLIB_INTERNAL z_error OF((char *m)); 225# define Assert(cond,msg) {if(!(cond)) z_error(msg);} 226# define Trace(x) {if (z_verbose>=0) FXSYS_fprintf x ;} 227# define Tracev(x) {if (z_verbose>0) FXSYS_fprintf x ;} 228# define Tracevv(x) {if (z_verbose>1) FXSYS_fprintf x ;} 229# define Tracec(c,x) {if (z_verbose>0 && (c)) FXSYS_fprintf x ;} 230# define Tracecv(c,x) {if (z_verbose>1 && (c)) FXSYS_fprintf x ;} 231#else 232# define Assert(cond,msg) 233# define Trace(x) 234# define Tracev(x) 235# define Tracevv(x) 236# define Tracec(c,x) 237# define Tracecv(c,x) 238#endif 239 240#ifndef Z_SOLO 241 voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, 242 unsigned size)); 243 void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); 244#endif 245 246#define ZALLOC(strm, items, size) \ 247 (*((strm)->zalloc))((strm)->opaque, (items), (size)) 248#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) 249#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} 250 251/* Reverse the bytes in a 32-bit value */ 252#define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ 253 (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) 254 255#endif /* ZUTIL_H */ 256