nuclear@26: /* zutil.h -- internal interface and configuration of the compression library
nuclear@26:  * Copyright (C) 1995-2005 Jean-loup Gailly.
nuclear@26:  * For conditions of distribution and use, see copyright notice in zlib.h
nuclear@26:  */
nuclear@26: 
nuclear@26: /* WARNING: this file should *not* be used by applications. It is
nuclear@26:    part of the implementation of the compression library and is
nuclear@26:    subject to change. Applications should only use zlib.h.
nuclear@26:  */
nuclear@26: 
nuclear@26: /* @(#) $Id$ */
nuclear@26: 
nuclear@26: #ifndef ZUTIL_H
nuclear@26: #define ZUTIL_H
nuclear@26: 
nuclear@26: #define ZLIB_INTERNAL
nuclear@26: #include "zlib.h"
nuclear@26: 
nuclear@26: #ifdef STDC
nuclear@26: #  ifndef _WIN32_WCE
nuclear@26: #    include <stddef.h>
nuclear@26: #  endif
nuclear@26: #  include <string.h>
nuclear@26: #  include <stdlib.h>
nuclear@26: #endif
nuclear@26: #ifdef NO_ERRNO_H
nuclear@26: #   ifdef _WIN32_WCE
nuclear@26:       /* The Microsoft C Run-Time Library for Windows CE doesn't have
nuclear@26:        * errno.  We define it as a global variable to simplify porting.
nuclear@26:        * Its value is always 0 and should not be used.  We rename it to
nuclear@26:        * avoid conflict with other libraries that use the same workaround.
nuclear@26:        */
nuclear@26: #     define errno z_errno
nuclear@26: #   endif
nuclear@26:     extern int errno;
nuclear@26: #else
nuclear@26: #  ifndef _WIN32_WCE
nuclear@26: #    include <errno.h>
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifndef local
nuclear@26: #  define local static
nuclear@26: #endif
nuclear@26: /* compile with -Dlocal if your debugger can't find static symbols */
nuclear@26: 
nuclear@26: typedef unsigned char  uch;
nuclear@26: typedef uch FAR uchf;
nuclear@26: typedef unsigned short ush;
nuclear@26: typedef ush FAR ushf;
nuclear@26: typedef unsigned long  ulg;
nuclear@26: 
nuclear@26: extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
nuclear@26: /* (size given to avoid silly warnings with Visual C++) */
nuclear@26: 
nuclear@26: #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
nuclear@26: 
nuclear@26: #define ERR_RETURN(strm,err) \
nuclear@26:   return (strm->msg = (char*)ERR_MSG(err), (err))
nuclear@26: /* To be used only when the state is known to be valid */
nuclear@26: 
nuclear@26:         /* common constants */
nuclear@26: 
nuclear@26: #ifndef DEF_WBITS
nuclear@26: #  define DEF_WBITS MAX_WBITS
nuclear@26: #endif
nuclear@26: /* default windowBits for decompression. MAX_WBITS is for compression only */
nuclear@26: 
nuclear@26: #if MAX_MEM_LEVEL >= 8
nuclear@26: #  define DEF_MEM_LEVEL 8
nuclear@26: #else
nuclear@26: #  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
nuclear@26: #endif
nuclear@26: /* default memLevel */
nuclear@26: 
nuclear@26: #define STORED_BLOCK 0
nuclear@26: #define STATIC_TREES 1
nuclear@26: #define DYN_TREES    2
nuclear@26: /* The three kinds of block type */
nuclear@26: 
nuclear@26: #define MIN_MATCH  3
nuclear@26: #define MAX_MATCH  258
nuclear@26: /* The minimum and maximum match lengths */
nuclear@26: 
nuclear@26: #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
nuclear@26: 
nuclear@26:         /* target dependencies */
nuclear@26: 
nuclear@26: #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
nuclear@26: #  define OS_CODE  0x00
nuclear@26: #  if defined(__TURBOC__) || defined(__BORLANDC__)
nuclear@26: #    if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
nuclear@26:        /* Allow compilation with ANSI keywords only enabled */
nuclear@26:        void _Cdecl farfree( void *block );
nuclear@26:        void *_Cdecl farmalloc( unsigned long nbytes );
nuclear@26: #    else
nuclear@26: #      include <alloc.h>
nuclear@26: #    endif
nuclear@26: #  else /* MSC or DJGPP */
nuclear@26: #    include <malloc.h>
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef AMIGA
nuclear@26: #  define OS_CODE  0x01
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(VAXC) || defined(VMS)
nuclear@26: #  define OS_CODE  0x02
nuclear@26: #  define F_OPEN(name, mode) \
nuclear@26:      fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(ATARI) || defined(atarist)
nuclear@26: #  define OS_CODE  0x05
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef OS2
nuclear@26: #  define OS_CODE  0x06
nuclear@26: #  ifdef M_I86
nuclear@26:      #include <malloc.h>
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(MACOS) || defined(TARGET_OS_MAC)
nuclear@26: #  define OS_CODE  0x07
nuclear@26: #  if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
nuclear@26: #    include <unix.h> /* for fdopen */
nuclear@26: #  else
nuclear@26: #    ifndef fdopen
nuclear@26: #      define fdopen(fd,mode) NULL /* No fdopen() */
nuclear@26: #    endif
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef TOPS20
nuclear@26: #  define OS_CODE  0x0a
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef WIN32
nuclear@26: #  ifndef __CYGWIN__  /* Cygwin is Unix, not Win32 */
nuclear@26: #    define OS_CODE  0x0b
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifdef __50SERIES /* Prime/PRIMOS */
nuclear@26: #  define OS_CODE  0x0f
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(_BEOS_) || defined(RISCOS)
nuclear@26: #  define fdopen(fd,mode) NULL /* No fdopen() */
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if (defined(_MSC_VER) && (_MSC_VER > 600))
nuclear@26: #  if defined(_WIN32_WCE)
nuclear@26: #    define fdopen(fd,mode) NULL /* No fdopen() */
nuclear@26: #    ifndef _PTRDIFF_T_DEFINED
nuclear@26:        typedef int ptrdiff_t;
nuclear@26: #      define _PTRDIFF_T_DEFINED
nuclear@26: #    endif
nuclear@26: #  else
nuclear@26: #    define fdopen(fd,type)  _fdopen(fd,type)
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: 
nuclear@26:         /* common defaults */
nuclear@26: 
nuclear@26: #ifndef OS_CODE
nuclear@26: #  define OS_CODE  0x03  /* assume Unix */
nuclear@26: #endif
nuclear@26: 
nuclear@26: #ifndef F_OPEN
nuclear@26: #  define F_OPEN(name, mode) fopen((name), (mode))
nuclear@26: #endif
nuclear@26: 
nuclear@26:          /* functions */
nuclear@26: 
nuclear@26: #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
nuclear@26: #  ifndef HAVE_VSNPRINTF
nuclear@26: #    define HAVE_VSNPRINTF
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #if defined(__CYGWIN__)
nuclear@26: #  ifndef HAVE_VSNPRINTF
nuclear@26: #    define HAVE_VSNPRINTF
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifndef HAVE_VSNPRINTF
nuclear@26: #  ifdef MSDOS
nuclear@26:      /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
nuclear@26:         but for now we just assume it doesn't. */
nuclear@26: #    define NO_vsnprintf
nuclear@26: #  endif
nuclear@26: #  ifdef __TURBOC__
nuclear@26: #    define NO_vsnprintf
nuclear@26: #  endif
nuclear@26: #  ifdef WIN32
nuclear@26:      /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
nuclear@26: #    if !defined(vsnprintf) && !defined(NO_vsnprintf)
nuclear@26: #      define vsnprintf _vsnprintf
nuclear@26: #    endif
nuclear@26: #  endif
nuclear@26: #  ifdef __SASC
nuclear@26: #    define NO_vsnprintf
nuclear@26: #  endif
nuclear@26: #endif
nuclear@26: #ifdef VMS
nuclear@26: #  define NO_vsnprintf
nuclear@26: #endif
nuclear@26: 
nuclear@26: #if defined(pyr)
nuclear@26: #  define NO_MEMCPY
nuclear@26: #endif
nuclear@26: #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
nuclear@26:  /* Use our own functions for small and medium model with MSC <= 5.0.
nuclear@26:   * You may have to use the same strategy for Borland C (untested).
nuclear@26:   * The __SC__ check is for Symantec.
nuclear@26:   */
nuclear@26: #  define NO_MEMCPY
nuclear@26: #endif
nuclear@26: #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
nuclear@26: #  define HAVE_MEMCPY
nuclear@26: #endif
nuclear@26: #ifdef HAVE_MEMCPY
nuclear@26: #  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
nuclear@26: #    define zmemcpy _fmemcpy
nuclear@26: #    define zmemcmp _fmemcmp
nuclear@26: #    define zmemzero(dest, len) _fmemset(dest, 0, len)
nuclear@26: #  else
nuclear@26: #    define zmemcpy memcpy
nuclear@26: #    define zmemcmp memcmp
nuclear@26: #    define zmemzero(dest, len) memset(dest, 0, len)
nuclear@26: #  endif
nuclear@26: #else
nuclear@26:    extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));
nuclear@26:    extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));
nuclear@26:    extern void zmemzero OF((Bytef* dest, uInt len));
nuclear@26: #endif
nuclear@26: 
nuclear@26: /* Diagnostic functions */
nuclear@26: #ifdef DEBUG
nuclear@26: #  include <stdio.h>
nuclear@26:    extern int z_verbose;
nuclear@26:    extern void z_error    OF((char *m));
nuclear@26: #  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
nuclear@26: #  define Trace(x) {if (z_verbose>=0) fprintf x ;}
nuclear@26: #  define Tracev(x) {if (z_verbose>0) fprintf x ;}
nuclear@26: #  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
nuclear@26: #  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
nuclear@26: #  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
nuclear@26: #else
nuclear@26: #  define Assert(cond,msg)
nuclear@26: #  define Trace(x)
nuclear@26: #  define Tracev(x)
nuclear@26: #  define Tracevv(x)
nuclear@26: #  define Tracec(c,x)
nuclear@26: #  define Tracecv(c,x)
nuclear@26: #endif
nuclear@26: 
nuclear@26: 
nuclear@26: voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
nuclear@26: void   zcfree  OF((voidpf opaque, voidpf ptr));
nuclear@26: 
nuclear@26: #define ZALLOC(strm, items, size) \
nuclear@26:            (*((strm)->zalloc))((strm)->opaque, (items), (size))
nuclear@26: #define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
nuclear@26: #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
nuclear@26: 
nuclear@26: #endif /* ZUTIL_H */