sl@0: /* Portions Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0:  * All rights reserved.
sl@0:  */
sl@0: 
sl@0: /* zutil.h -- internal interface and configuration of the compression library
sl@0:  * Copyright (C) 1995-2005 Jean-loup Gailly.
sl@0:  * For conditions of distribution and use, see copyright notice in zlib.h
sl@0:  */
sl@0: 
sl@0: /* WARNING: this file should *not* be used by applications. It is
sl@0:    part of the implementation of the compression library and is
sl@0:    subject to change. Applications should only use zlib.h.
sl@0:  */
sl@0: 
sl@0: #ifndef ZUTIL_H
sl@0: #define ZUTIL_H
sl@0: 
sl@0: #define ZLIB_INTERNAL
sl@0: #include "libzcore.h"
sl@0: 
sl@0: #if defined(SYMBIAN_EZLIB_DEVICE) && !defined(LIBZGZIO_H)
sl@0:   #include <e32std.h>
sl@0: #endif 
sl@0: 
sl@0: #if !defined(SYMBIAN_EZLIB_DEVICE) || defined(LIBZGZIO_H)
sl@0: 
sl@0: #ifdef STDC
sl@0: #  ifndef _WIN32_WCE
sl@0: #    include <stddef.h>
sl@0: #  endif
sl@0: #  include <string.h>
sl@0: #  include <stdlib.h>
sl@0: #endif
sl@0: #ifdef NO_ERRNO_H
sl@0: #   ifdef _WIN32_WCE
sl@0:       /* The Microsoft C Run-Time Library for Windows CE doesn't have
sl@0:        * errno.  We define it as a global variable to simplify porting.
sl@0:        * Its value is always 0 and should not be used.  We rename it to
sl@0:        * avoid conflict with other libraries that use the same workaround.
sl@0:        */
sl@0: #     define errno z_errno
sl@0: #   endif
sl@0:     extern int errno;
sl@0: #else
sl@0: #  ifndef _WIN32_WCE
sl@0: #    include <errno.h>
sl@0: #  endif
sl@0: #endif
sl@0: 
sl@0: #endif //SYMBIAN_EZLIB_DEVICE
sl@0: 
sl@0: #ifndef local
sl@0: #  define local static
sl@0: #endif
sl@0: /* compile with -Dlocal if your debugger can't find static symbols */
sl@0: 
sl@0: typedef unsigned char  uch;
sl@0: typedef uch FAR uchf;
sl@0: typedef unsigned short ush;
sl@0: typedef ush FAR ushf;
sl@0: typedef unsigned long  ulg;
sl@0: 
sl@0: 	extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
sl@0: /* (size given to avoid silly warnings with Visual C++) */
sl@0: 
sl@0: 
sl@0: 
sl@0: #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
sl@0: 
sl@0: #define ERR_RETURN(strm,err) \
sl@0:   return (strm->msg = (char*)ERR_MSG(err), (err))
sl@0: /* To be used only when the state is known to be valid */
sl@0: 
sl@0:         /* common constants */
sl@0: 
sl@0: #ifndef DEF_WBITS
sl@0: #  define DEF_WBITS MAX_WBITS
sl@0: #endif
sl@0: /* default windowBits for decompression. MAX_WBITS is for compression only */
sl@0: 
sl@0: #if MAX_MEM_LEVEL >= 8
sl@0: #define DEF_MEM_LEVEL 8   
sl@0: #else
sl@0: #define DEF_MEM_LEVEL MAX_MEM_LEVEL   
sl@0: #endif
sl@0: 
sl@0: /* default memLevel */
sl@0: 
sl@0: #define STORED_BLOCK 0
sl@0: #define STATIC_TREES 1
sl@0: #define DYN_TREES    2
sl@0: /* The three kinds of block type */
sl@0: 
sl@0: #define MIN_MATCH  3
sl@0: #define MAX_MATCH  258
sl@0: /* The minimum and maximum match lengths */
sl@0: 
sl@0: #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
sl@0: 
sl@0:         /* target dependencies */
sl@0: 
sl@0: 
sl@0: #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
sl@0: #  define OS_CODE  0x00
sl@0: #  if defined(__TURBOC__) || defined(__BORLANDC__)
sl@0: #    if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
sl@0:        /* Allow compilation with ANSI keywords only enabled */
sl@0:        void _Cdecl farfree( void *block );
sl@0:        void *_Cdecl farmalloc( unsigned long nbytes );
sl@0: #    else
sl@0: #      include <alloc.h>
sl@0: #    endif
sl@0: #  else /* MSC or DJGPP */
sl@0: #    include <malloc.h>
sl@0: #  endif
sl@0: #endif
sl@0: 
sl@0: #ifdef AMIGA
sl@0: #  define OS_CODE  0x01
sl@0: #endif
sl@0: 
sl@0: #if defined(VAXC) || defined(VMS)
sl@0: #  define OS_CODE  0x02
sl@0: #  define F_OPEN(name, mode) \
sl@0:      fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
sl@0: #endif
sl@0: 
sl@0: #if defined(ATARI) || defined(atarist)
sl@0: #  define OS_CODE  0x05
sl@0: #endif
sl@0: 
sl@0: #ifdef OS2
sl@0: #  define OS_CODE  0x06
sl@0: #  ifdef M_I86
sl@0:      #include <malloc.h>
sl@0: #  endif
sl@0: #endif
sl@0: 
sl@0: #if defined(MACOS) || defined(TARGET_OS_MAC)
sl@0: #  define OS_CODE  0x07
sl@0: #  if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
sl@0: #    include <unix.h> /* for fdopen */
sl@0: #  else
sl@0: #    ifndef fdopen
sl@0: #      define fdopen(fd,mode) NULL /* No fdopen() */
sl@0: #    endif
sl@0: #  endif
sl@0: #endif
sl@0: 
sl@0: #ifdef TOPS20
sl@0: #  define OS_CODE  0x0a
sl@0: #endif
sl@0: 
sl@0: #ifdef WIN32
sl@0: #  ifndef __CYGWIN__  /* Cygwin is Unix, not Win32 */
sl@0: #    define OS_CODE  0x0b
sl@0: #  endif
sl@0: #endif
sl@0: 
sl@0: #ifdef __50SERIES /* Prime/PRIMOS */
sl@0: #  define OS_CODE  0x0f
sl@0: #endif
sl@0: 
sl@0: #if defined(_BEOS_) || defined(RISCOS)
sl@0: #  define fdopen(fd,mode) NULL /* No fdopen() */
sl@0: #endif
sl@0: 
sl@0: #if (defined(_MSC_VER) && (_MSC_VER > 600))
sl@0: #  if defined(_WIN32_WCE)
sl@0: #    define fdopen(fd,mode) NULL /* No fdopen() */
sl@0: #    ifndef _PTRDIFF_T_DEFINED
sl@0:        typedef int ptrdiff_t;
sl@0: #      define _PTRDIFF_T_DEFINED
sl@0: #    endif
sl@0: #  else
sl@0: #    define fdopen(fd,type)  _fdopen(fd,type)
sl@0: #  endif
sl@0: #endif
sl@0: 
sl@0:         /* common defaults */
sl@0: 
sl@0: #ifndef OS_CODE
sl@0: #  define OS_CODE  0x03  /* assume Unix */
sl@0: #endif
sl@0: 
sl@0: #if !defined(SYMBIAN_EZLIB_DEVICE) || defined(LIBZGZIO_H)
sl@0: #ifndef F_OPEN
sl@0: #  define F_OPEN(name, mode) fopen((name), (mode))
sl@0: #endif
sl@0: 
sl@0:          /* functions */
sl@0: 
sl@0: #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
sl@0: #  ifndef HAVE_VSNPRINTF
sl@0: #    define HAVE_VSNPRINTF
sl@0: #  endif
sl@0: #endif
sl@0: #if defined(__CYGWIN__)
sl@0: #  ifndef HAVE_VSNPRINTF
sl@0: #    define HAVE_VSNPRINTF
sl@0: #  endif
sl@0: #endif
sl@0: #ifndef HAVE_VSNPRINTF
sl@0: #  ifdef MSDOS
sl@0:      /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
sl@0:         but for now we just assume it doesn't. */
sl@0: #    define NO_vsnprintf
sl@0: #  endif
sl@0: #  ifdef __TURBOC__
sl@0: #    define NO_vsnprintf
sl@0: #  endif
sl@0: #  ifdef WIN32
sl@0:      /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
sl@0: #    if !defined(vsnprintf) && !defined(NO_vsnprintf)
sl@0: #ifndef SYMBIAN_EZLIB_DEVICE
sl@0: #      define vsnprintf _vsnprintf
sl@0: #    endif //SYMBIAN_EZLIB_DEVICE
sl@0: #    endif
sl@0: #  endif
sl@0: #  ifdef __SASC
sl@0: #    define NO_vsnprintf
sl@0: #  endif
sl@0: #endif
sl@0: #ifdef VMS
sl@0: #  define NO_vsnprintf
sl@0: #endif
sl@0: 
sl@0: #endif // !SYMBIAN_EZLIB_DEVICE || LIBZGZIO_H
sl@0: 
sl@0: #if defined(pyr)
sl@0: #  define NO_MEMCPY
sl@0: #endif
sl@0: #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
sl@0:  /* Use our own functions for small and medium model with MSC <= 5.0.
sl@0:   * You may have to use the same strategy for Borland C (untested).
sl@0:   * The __SC__ check is for Symantec.
sl@0:   */
sl@0: #  define NO_MEMCPY
sl@0: #endif
sl@0: #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
sl@0: #  define HAVE_MEMCPY
sl@0: #endif
sl@0: #ifdef HAVE_MEMCPY
sl@0: #  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
sl@0: #    define zmemcpy _fmemcpy
sl@0: #    define zmemcmp _fmemcmp
sl@0: #    define zmemzero(dest, len) _fmemset(dest, 0, len)
sl@0: #  else
sl@0: #    define zmemcpy memcpy
sl@0: #    define zmemcmp memcmp
sl@0: #    define zmemzero(dest, len) memset(dest, 0, len)
sl@0: #  endif
sl@0: #else
sl@0:    extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));
sl@0:    extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));
sl@0:    extern void zmemzero OF((Bytef* dest, uInt len));
sl@0: #endif
sl@0: 
sl@0: // Native Symbian Memory Functions Symbian
sl@0: #if defined(SYMBIAN_EZLIB_DEVICE) && !defined(LIBZGZIO_H)
sl@0:   #define HAVE_MEMCPY
sl@0:   #undef zmemcpy
sl@0:   #undef zmemcmp
sl@0:   #undef zmemzero
sl@0:   #define zmemcpy Mem::Copy
sl@0:   #define zmemcmp(s1,s2,len)  Mem::Compare(s1,len,s2,len)
sl@0:   #define zmemzero(dest, len) Mem::FillZ(dest, len)
sl@0: #endif //SYMBIAN_EZLIB_DEVICE && !LIBZGZIO_H
sl@0: 
sl@0: /* Diagnostic functions */
sl@0: #ifdef DEBUG
sl@0: #  include <stdio.h>
sl@0:    extern int z_verbose;
sl@0:    extern void z_error    OF((char *m));
sl@0: #  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
sl@0: #  define Trace(x) {if (z_verbose>=0) fprintf x ;}
sl@0: #  define Tracev(x) {if (z_verbose>0) fprintf x ;}
sl@0: #  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
sl@0: #  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
sl@0: #  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
sl@0: #else
sl@0: #  define Assert(cond,msg)
sl@0: #  define Trace(x)
sl@0: #  define Tracev(x)
sl@0: #  define Tracevv(x)
sl@0: #  define Tracec(c,x)
sl@0: #  define Tracecv(c,x)
sl@0: #endif
sl@0: 
sl@0: 
sl@0: voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
sl@0: void   zcfree  OF((voidpf opaque, voidpf ptr));
sl@0: 
sl@0: #define ZALLOC(strm, items, size) \
sl@0:            (*((strm)->zalloc))((strm)->opaque, (items), (size))
sl@0: #define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
sl@0: #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
sl@0: 
sl@0: #endif /* ZUTIL_H */