/src/freetype/src/gzip/zutil.h
C++ Header | 215 lines | 151 code | 39 blank | 25 comment | 23 complexity | 0d77f751c819cb6415e0c001ef2eb25c MD5 | raw file
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 34typedef unsigned char uch; 35typedef uch FAR uchf; 36typedef unsigned short ush; 37typedef ush FAR ushf; 38typedef 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# endif 84#endif 85 86#ifdef OS2 87# define OS_CODE 0x06 88#endif 89 90#ifdef WIN32 /* Window 95 & Windows NT */ 91# define OS_CODE 0x0b 92#endif 93 94#if defined(VAXC) || defined(VMS) 95# define OS_CODE 0x02 96# define F_OPEN(name, mode) \ 97 ft_fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") 98#endif 99 100#ifdef AMIGA 101# define OS_CODE 0x01 102#endif 103 104#if defined(ATARI) || defined(atarist) 105# define OS_CODE 0x05 106#endif 107 108#if defined(MACOS) || defined(TARGET_OS_MAC) 109# define OS_CODE 0x07 110# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os 111# include <unix.h> /* for fdopen */ 112# else 113# ifndef fdopen 114# define fdopen(fd,mode) NULL /* No fdopen() */ 115# endif 116# endif 117#endif 118 119#ifdef __50SERIES /* Prime/PRIMOS */ 120# define OS_CODE 0x0F 121#endif 122 123#ifdef TOPS20 124# define OS_CODE 0x0a 125#endif 126 127#if defined(_BEOS_) || defined(RISCOS) 128# define fdopen(fd,mode) NULL /* No fdopen() */ 129#endif 130 131#if (defined(_MSC_VER) && (_MSC_VER > 600)) 132# define fdopen(fd,type) _fdopen(fd,type) 133#endif 134 135 136 /* Common defaults */ 137 138#ifndef OS_CODE 139# define OS_CODE 0x03 /* assume Unix */ 140#endif 141 142#ifndef F_OPEN 143# define F_OPEN(name, mode) ft_fopen((name), (mode)) 144#endif 145 146 /* functions */ 147 148#ifdef HAVE_STRERROR 149 extern char *strerror OF((int)); 150# define zstrerror(errnum) strerror(errnum) 151#else 152# define zstrerror(errnum) "" 153#endif 154 155#if defined(pyr) 156# define NO_MEMCPY 157#endif 158#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) 159 /* Use our own functions for small and medium model with MSC <= 5.0. 160 * You may have to use the same strategy for Borland C (untested). 161 * The __SC__ check is for Symantec. 162 */ 163# define NO_MEMCPY 164#endif 165#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) 166# define HAVE_MEMCPY 167#endif 168#ifdef HAVE_MEMCPY 169# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ 170# define zmemcpy _fmemcpy 171# define zmemcmp _fmemcmp 172# define zmemzero(dest, len) _fmemset(dest, 0, len) 173# else 174# define zmemcpy ft_memcpy 175# define zmemcmp ft_memcmp 176# define zmemzero(dest, len) ft_memset(dest, 0, len) 177# endif 178#else 179 extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); 180 extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); 181 extern void zmemzero OF((Bytef* dest, uInt len)); 182#endif 183 184/* Diagnostic functions */ 185#ifdef DEBUG 186# include <stdio.h> 187 extern int z_verbose; 188 extern void z_error OF((char *m)); 189# define Assert(cond,msg) {if(!(cond)) z_error(msg);} 190# define Trace(x) {if (z_verbose>=0) fprintf x ;} 191# define Tracev(x) {if (z_verbose>0) fprintf x ;} 192# define Tracevv(x) {if (z_verbose>1) fprintf x ;} 193# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} 194# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} 195#else 196# define Assert(cond,msg) 197# define Trace(x) 198# define Tracev(x) 199# define Tracevv(x) 200# define Tracec(c,x) 201# define Tracecv(c,x) 202#endif 203 204 205typedef uLong (*check_func) OF((uLong check, const Bytef *buf, 206 uInt len)); 207local voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); 208local void zcfree OF((voidpf opaque, voidpf ptr)); 209 210#define ZALLOC(strm, items, size) \ 211 (*((strm)->zalloc))((strm)->opaque, (items), (size)) 212#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) 213#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} 214 215#endif /* _Z_UTIL_H */