pngconf.h

It was built with libpng version 1.2.35, and is running with libpng version 1.2.35

 * numbers suggest (a png_uint_32 must be at least 32 bits long), but they
 * don't have to be exactly that size.  Some compilers dislike passing
 * unsigned shorts as function parameters, so you may be better off using
 * unsigned int for png_uint_16.  Likewise, for 64-bit systems, you may
 * want to have unsigned int for png_uint_32 instead of unsigned long.
 */

typedef unsigned long png_uint_32;
typedef long png_int_32;
typedef unsigned short png_uint_16;
typedef short png_int_16;
typedef unsigned char png_byte;

/* This is usually size_t.  It is typedef'ed just in case you need it to
   change (I'm not sure if you will or not, so I thought I'd be safe) */
#ifdef PNG_SIZE_T
   typedef PNG_SIZE_T png_size_t;
#  define png_sizeof(x) png_convert_size(sizeof(x))
#else
   typedef size_t png_size_t;
#  define png_sizeof(x) sizeof(x)
#endif

/* The following is needed for medium model support.  It cannot be in the
 * PNG_INTERNAL section.  Needs modification for other compilers besides
 * MSC.  Model independent support declares all arrays and pointers to be
 * large using the far keyword.  The zlib version used must also support
 * model independent data.  As of version zlib 1.0.4, the necessary changes
 * have been made in zlib.  The USE_FAR_KEYWORD define triggers other
 * changes that are needed. (Tim Wegner)
 */

/* Separate compiler dependencies (problem here is that zlib.h always
   defines FAR. (SJT) */
#ifdef __BORLANDC__
#  if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
#    define LDATA 1
#  else
#    define LDATA 0
#  endif
   /* GRR:  why is Cygwin in here?  Cygwin is not Borland C... */
#  if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
#    define PNG_MAX_MALLOC_64K
#    if (LDATA != 1)
#      ifndef FAR
#        define FAR __far
#      endif
#      define USE_FAR_KEYWORD
#    endif   /* LDATA != 1 */
     /* Possibly useful for moving data out of default segment.
      * Uncomment it if you want. Could also define FARDATA as
      * const if your compiler supports it. (SJT)
#    define FARDATA FAR
      */
#  endif  /* __WIN32__, __FLAT__, __CYGWIN__ */
#endif   /* __BORLANDC__ */


/* Suggest testing for specific compiler first before testing for
 * FAR.  The Watcom compiler defines both __MEDIUM__ and M_I86MM,
 * making reliance oncertain keywords suspect. (SJT)
 */

/* MSC Medium model */
#if defined(FAR)
#  if defined(M_I86MM)
#    define USE_FAR_KEYWORD
#    define FARDATA FAR
#    include <dos.h>
#  endif
#endif

/* SJT: default case */
#ifndef FAR
#  define FAR
#endif

/* At this point FAR is always defined */
#ifndef FARDATA
#  define FARDATA
#endif

/* Typedef for floating-point numbers that are converted
   to fixed-point with a multiple of 100,000, e.g., int_gamma */
typedef png_int_32 png_fixed_point;

/* Add typedefs for pointers */
typedef void            FAR * png_voidp;
typedef png_byte        FAR * png_bytep;
typedef png_uint_32     FAR * png_uint_32p;
typedef png_int_32      FAR * png_int_32p;
typedef png_uint_16     FAR * png_uint_16p;
typedef png_int_16      FAR * png_int_16p;
typedef PNG_CONST char  FAR * png_const_charp;
typedef char            FAR * png_charp;
typedef png_fixed_point FAR * png_fixed_point_p;

#ifndef PNG_NO_STDIO
#if defined(_WIN32_WCE)
typedef HANDLE                png_FILE_p;
#else
typedef FILE                * png_FILE_p;
#endif
#endif

#ifdef PNG_FLOATING_POINT_SUPPORTED
typedef double          FAR * png_doublep;
#endif

/* Pointers to pointers; i.e. arrays */
typedef png_byte        FAR * FAR * png_bytepp;
typedef png_uint_32     FAR * FAR * png_uint_32pp;
typedef png_int_32      FAR * FAR * png_int_32pp;
typedef png_uint_16     FAR * FAR * png_uint_16pp;
typedef png_int_16      FAR * FAR * png_int_16pp;
typedef PNG_CONST char  FAR * FAR * png_const_charpp;
typedef char            FAR * FAR * png_charpp;
typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
#ifdef PNG_FLOATING_POINT_SUPPORTED
typedef double          FAR * FAR * png_doublepp;
#endif

/* Pointers to pointers to pointers; i.e., pointer to array */
typedef char            FAR * FAR * FAR * png_charppp;

#if defined(PNG_1_0_X) || defined(PNG_1_2_X)
/* SPC -  Is this stuff deprecated? */
/* It'll be removed as of libpng-1.3.0 - GR-P */
/* libpng typedefs for types in zlib. If zlib changes
 * or another compression library is used, then change these.
 * Eliminates need to change all the source files.
 */
typedef charf *         png_zcharp;
typedef charf * FAR *   png_zcharpp;
typedef z_stream FAR *  png_zstreamp;
#endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */

/*
 * Define PNG_BUILD_DLL if the module being built is a Windows
 * LIBPNG DLL.
 *
 * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
 * It is equivalent to Microsoft predefined macro _DLL that is
 * automatically defined when you compile using the share
 * version of the CRT (C Run-Time library)
 *
 * The cygwin mods make this behavior a little different:
 * Define PNG_BUILD_DLL if you are building a dll for use with cygwin
 * Define PNG_STATIC if you are building a static library for use with cygwin,
 *   -or- if you are building an application that you want to link to the
 *   static library.
 * PNG_USE_DLL is defined by default (no user action needed) unless one of
 *   the other flags is defined.
 */

#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
#  define PNG_DLL
#endif
/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
 * When building a static lib, default to no GLOBAL ARRAYS, but allow
 * command-line override
 */
#if defined(__CYGWIN__)
#  if !defined(PNG_STATIC)
#    if defined(PNG_USE_GLOBAL_ARRAYS)
#      undef PNG_USE_GLOBAL_ARRAYS
#    endif
#    if !defined(PNG_USE_LOCAL_ARRAYS)
#      define PNG_USE_LOCAL_ARRAYS
#    endif
#  else
#    if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
#      if defined(PNG_USE_GLOBAL_ARRAYS)
#        undef PNG_USE_GLOBAL_ARRAYS
#      endif
#    endif
#  endif
#  if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
#    define PNG_USE_LOCAL_ARRAYS
#  endif
#endif

/* Do not use global arrays (helps with building DLL's)
 * They are no longer used in libpng itself, since version 1.0.5c,
 * but might be required for some pre-1.0.5c applications.
 */
#if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
#  if defined(PNG_NO_GLOBAL_ARRAYS) || \
      (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)
#    define PNG_USE_LOCAL_ARRAYS
#  else
#    define PNG_USE_GLOBAL_ARRAYS
#  endif
#endif

#if defined(__CYGWIN__)
#  undef PNGAPI
#  define PNGAPI __cdecl
#  undef PNG_IMPEXP
#  define PNG_IMPEXP
#endif  

/* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
 * you may get warnings regarding the linkage of png_zalloc and png_zfree.
 * Don't ignore those warnings; you must also reset the default calling
 * convention in your compiler to match your PNGAPI, and you must build
 * zlib and your applications the same way you build libpng.
 */

#if defined(__MINGW32__) && !defined(PNG_MODULEDEF)
#  ifndef PNG_NO_MODULEDEF
#    define PNG_NO_MODULEDEF
#  endif
#endif

#if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF)
#  define PNG_IMPEXP
#endif

#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
    (( defined(_Windows) || defined(_WINDOWS) || \
       defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))

#  ifndef PNGAPI
#     if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
#        define PNGAPI __cdecl
#     else
#        define PNGAPI _cdecl
#     endif
#  endif

#  if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \
       0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */)
#     define PNG_IMPEXP
#  endif

#  if !defined(PNG_IMPEXP)

#     define PNG_EXPORT_TYPE1(type,symbol)  PNG_IMPEXP type PNGAPI symbol
#     define PNG_EXPORT_TYPE2(type,symbol)  type PNG_IMPEXP PNGAPI symbol

      /* Borland/Microsoft */
#     if defined(_MSC_VER) || defined(__BORLANDC__)
#        if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500)
#           define PNG_EXPORT PNG_EXPORT_TYPE1
#        else
#           define PNG_EXPORT PNG_EXPORT_TYPE2
#           if defined(PNG_BUILD_DLL)
#              define PNG_IMPEXP __export
#           else
#              define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in
                                                 VC++ */
#           endif                             /* Exists in Borland C++ for
                                                 C++ classes (== huge) */
#        endif
#     endif

#     if !defined(PNG_IMPEXP)
#        if defined(PNG_BUILD_DLL)
#           define PNG_IMPEXP __declspec(dllexport)
#        else
#           define PNG_IMPEXP __declspec(dllimport)
#        endif
#     endif
#  endif  /* PNG_IMPEXP */
#else /* !(DLL || non-cygwin WINDOWS) */
#   if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__)
#      ifndef PNGAPI
#         define PNGAPI _System
#      endif
#   else
#      if 0 /* ... other platforms, with other meanings */
#      endif
#   endif
#endif

#ifndef PNGAPI
#  define PNGAPI
#endif
#ifndef PNG_IMPEXP
#  define PNG_IMPEXP
#endif

#ifdef PNG_BUILDSYMS
#  ifndef PNG_EXPORT
#    define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
#  endif
#  ifdef PNG_USE_GLOBAL_ARRAYS
#    ifndef PNG_EXPORT_VAR
#      define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT
#    endif
#  endif
#endif

#ifndef PNG_EXPORT
#  define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
#endif

#ifdef PNG_USE_GLOBAL_ARRAYS
#  ifndef PNG_EXPORT_VAR
#    define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
#  endif
#endif

/* User may want to use these so they are not in PNG_INTERNAL. Any library
 * functions that are passed far data must be model independent.
 */

#ifndef PNG_ABORT
#  define PNG_ABORT() abort()
#endif

#ifdef PNG_SETJMP_SUPPORTED
#  define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
#else
#  define png_jmpbuf(png_ptr) \
   (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
#endif

#if defined(USE_FAR_KEYWORD)  /* memory model independent fns */
/* use this to make far-to-near assignments */
#  define CHECK   1
#  define NOCHECK 0
#  define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
#  define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
#  define png_snprintf _fsnprintf   /* Added to v 1.2.19 */
#  define png_strlen  _fstrlen
#  define png_memcmp  _fmemcmp    /* SJT: added */
#  define png_memcpy  _fmemcpy
#  define png_memset  _fmemset
#else /* use the usual functions */
#  define CVT_PTR(ptr)         (ptr)
#  define CVT_PTR_NOCHECK(ptr) (ptr)
#  ifndef PNG_NO_SNPRINTF
#    ifdef _MSC_VER
#      define png_snprintf _snprintf   /* Added to v 1.2.19 */
#      define png_snprintf2 _snprintf
#      define png_snprintf6 _snprintf
#    else
#      define png_snprintf snprintf   /* Added to v 1.2.19 */
#      define png_snprintf2 snprintf
#      define png_snprintf6 snprintf
#    endif
#  else
     /* You don't have or don't want to use snprintf().  Caution: Using
      * sprintf instead of snprintf exposes your application to accidental
      * or malevolent buffer overflows.  If you don't have snprintf()
      * as a general rule you should provide one (you can get one from
      * Portable OpenSSH). */
#    define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)
#    define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)
#    define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
        sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
#  endif
#  define png_strlen  strlen
#  define png_memcmp  memcmp      /* SJT: added */
#  define png_memcpy  memcpy
#  define png_memset  memset
#endif
/* End of memory model independent support */

/* Just a little check that someone hasn't tried to define something
 * contradictory.
 */
#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
#  undef PNG_ZBUF_SIZE
#  define PNG_ZBUF_SIZE 65536L
#endif

/* Added at libpng-1.2.8 */
#endif /* PNG_VERSION_INFO_ONLY */

#endif /* PNGCONF_H */