/* pngconf.h - machine configurable file for libpng * * libpng version 1.2.40 - September 10, 2009 * Copyright (c) 1998-2009 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * * This code is released under the libpng license. * For conditions of distribution and use, see the disclaimer * and license in png.h *//* Any machine specific code is near the front of this file, so if you * are configuring libpng for a machine, you may want to read the section * starting here down to where it starts to typedef png_color, png_text, * and png_info. */#ifndef PNGCONF_H#define PNGCONF_H#define PNG_1_2_X/* * PNG_USER_CONFIG has to be defined on the compiler command line. This * includes the resource compiler for Windows DLL configurations. */#ifdef PNG_USER_CONFIG# ifndef PNG_USER_PRIVATEBUILD# define PNG_USER_PRIVATEBUILD# endif#include "pngusr.h"#endif/* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */#ifdef PNG_CONFIGURE_LIBPNG#ifdef HAVE_CONFIG_H#include "config.h"#endif#endif/* * Added at libpng-1.2.8 * * If you create a private DLL you need to define in "pngusr.h" the followings: * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of * the DLL was built> * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to * distinguish your DLL from those of the official release. These * correspond to the trailing letters that come after the version * number and must match your private DLL name> * e.g. // private DLL "libpng13gx.dll" * #define PNG_USER_DLLFNAME_POSTFIX "gx" * * The following macros are also at your disposal if you want to complete the * DLL VERSIONINFO structure. * - PNG_USER_VERSIONINFO_COMMENTS * - PNG_USER_VERSIONINFO_COMPANYNAME * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS */#ifdef __STDC__#ifdef SPECIALBUILD# pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\ are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")#endif#ifdef PRIVATEBUILD# pragma message("PRIVATEBUILD is deprecated.\ Use PNG_USER_PRIVATEBUILD instead.")# define PNG_USER_PRIVATEBUILD PRIVATEBUILD#endif#endif /* __STDC__ */#ifndef PNG_VERSION_INFO_ONLY/* End of material added to libpng-1.2.8 *//* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble Restored at libpng-1.2.21 */#if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \ !defined(PNG_WARN_UNINITIALIZED_ROW)# define PNG_WARN_UNINITIALIZED_ROW 1#endif/* End of material added at libpng-1.2.19/1.2.21 *//* This is the size of the compression buffer, and thus the size of * an IDAT chunk. Make this whatever size you feel is best for your * machine. One of these will be allocated per png_struct. When this * is full, it writes the data to the disk, and does some other * calculations. Making this an extremely small size will slow * the library down, but you may want to experiment to determine * where it becomes significant, if you are concerned with memory * usage. Note that zlib allocates at least 32Kb also. For readers, * this describes the size of the buffer available to read the data in. * Unless this gets smaller than the size of a row (compressed), * it should not make much difference how big this is. */#ifndef PNG_ZBUF_SIZE# define PNG_ZBUF_SIZE 8192#endif/* Enable if you want a write-only libpng */#ifndef PNG_NO_READ_SUPPORTED# define PNG_READ_SUPPORTED#endif/* Enable if you want a read-only libpng */#ifndef PNG_NO_WRITE_SUPPORTED# define PNG_WRITE_SUPPORTED#endif/* Enabled by default in 1.2.0. You can disable this if you don't need to support PNGs that are embedded in MNG datastreams */#if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES)# ifndef PNG_MNG_FEATURES_SUPPORTED# define PNG_MNG_FEATURES_SUPPORTED# endif#endif#ifndef PNG_NO_FLOATING_POINT_SUPPORTED# ifndef PNG_FLOATING_POINT_SUPPORTED# define PNG_FLOATING_POINT_SUPPORTED# endif#endif/* If you are running on a machine where you cannot allocate more * than 64K of memory at once, uncomment this. While libpng will not * normally need that much memory in a chunk (unless you load up a very * large file), zlib needs to know how big of a chunk it can use, and * libpng thus makes sure to check any memory allocation to verify it * will fit into memory.#define PNG_MAX_MALLOC_64K */#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)# define PNG_MAX_MALLOC_64K#endif/* Special munging to support doing things the 'cygwin' way: * 'Normal' png-on-win32 defines/defaults: * PNG_BUILD_DLL -- building dll * PNG_USE_DLL -- building an application, linking to dll * (no define) -- building static library, or building an * application and linking to the static lib * 'Cygwin' defines/defaults: * PNG_BUILD_DLL -- (ignored) building the dll * (no define) -- (ignored) building an application, linking to the dll * PNG_STATIC -- (ignored) building the static lib, or building an * application that links to the static lib. * ALL_STATIC -- (ignored) building various static libs, or building an * application that links to the static libs. * Thus, * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and * this bit of #ifdefs will define the 'correct' config variables based on * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but * unnecessary. * * Also, the precedence order is: * ALL_STATIC (since we can't #undef something outside our namespace) * PNG_BUILD_DLL * PNG_STATIC * (nothing) == PNG_USE_DLL * * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent * of auto-import in binutils, we no longer need to worry about * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes * to __declspec() stuff. However, we DO need to worry about * PNG_BUILD_DLL and PNG_STATIC because those change some defaults * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed. */#if defined(__CYGWIN__)# if defined(ALL_STATIC)# if defined(PNG_BUILD_DLL)# undef PNG_BUILD_DLL# endif# if defined(PNG_USE_DLL)# undef PNG_USE_DLL# endif# if defined(PNG_DLL)# undef PNG_DLL# endif# if !defined(PNG_STATIC)# define PNG_STATIC# endif# else# if defined (PNG_BUILD_DLL)# if defined(PNG_STATIC)# undef PNG_STATIC# endif# if defined(PNG_USE_DLL)# undef PNG_USE_DLL# endif# if !defined(PNG_DLL)# define PNG_DLL# endif# else# if defined(PNG_STATIC)# if defined(PNG_USE_DLL)# undef PNG_USE_DLL# endif# if defined(PNG_DLL)# undef PNG_DLL# endif# else# if !defined(PNG_USE_DLL)# define PNG_USE_DLL# endif# if !defined(PNG_DLL)# define PNG_DLL# endif# endif# endif# endif#endif/* This protects us against compilers that run on a windowing system * and thus don't have or would rather us not use the stdio types: * stdin, stdout, and stderr. The only one currently used is stderr * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will * prevent these from being compiled and used. #defining PNG_NO_STDIO * will also prevent these, plus will prevent the entire set of stdio * macros and functions (FILE *, printf, etc.) from being compiled and used, * unless (PNG_DEBUG > 0) has been #defined. * * #define PNG_NO_CONSOLE_IO * #define PNG_NO_STDIO */#if defined(_WIN32_WCE)# include <windows.h> /* Console I/O functions are not supported on WindowsCE */# define PNG_NO_CONSOLE_IO /* abort() may not be supported on some/all Windows CE platforms */# define PNG_ABORT() exit(-1)# ifdef PNG_DEBUG# undef PNG_DEBUG# endif#endif#ifdef PNG_BUILD_DLL# ifndef PNG_CONSOLE_IO_SUPPORTED# ifndef PNG_NO_CONSOLE_IO# define PNG_NO_CONSOLE_IO# endif# endif#endif# ifdef PNG_NO_STDIO# ifndef PNG_NO_CONSOLE_IO# define PNG_NO_CONSOLE_IO# endif# ifdef PNG_DEBUG# if (PNG_DEBUG > 0)# include <stdio.h># endif# endif# else# if !defined(_WIN32_WCE)/* "stdio.h" functions are not supported on WindowsCE */# include <stdio.h># endif# endif/* This macro protects us against machines that don't have function * prototypes (ie K&R style headers). If your compiler does not handle * function prototypes, define this macro and use the included ansi2knr. * I've always been able to use _NO_PROTO as the indicator, but you may * need to drag the empty declaration out in front of here, or change the * ifdef to suit your own needs. */#ifndef PNGARG#ifdef OF /* zlib prototype munger */# define PNGARG(arglist) OF(arglist)#else#ifdef _NO_PROTO# define PNGARG(arglist) ()# ifndef PNG_TYPECAST_NULL# define PNG_TYPECAST_NULL# endif#else# define PNGARG(arglist) arglist#endif /* _NO_PROTO */#endif /* OF */#endif /* PNGARG *//* Try to determine if we are compiling on a Mac. Note that testing for * just __MWERKS__ is not good enough, because the Codewarrior is now used * on non-Mac platforms. */#ifndef MACOS# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)# define MACOS# endif#endif/* enough people need this for various reasons to include it here */#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)# include <sys/types.h>#endif#if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED)# define PNG_SETJMP_SUPPORTED#endif#ifdef PNG_SETJMP_SUPPORTED/* This is an attempt to force a single setjmp behaviour on Linux. If * the X config stuff didn't define _BSD_SOURCE we wouldn't need this. * * You can bypass this test if you know that your application uses exactly * the same setjmp.h that was included when libpng was built. Only define * PNG_SKIP_SETJMP_CHECK while building your application, prior to the * application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK * while building a separate libpng library for general use. */# ifndef PNG_SKIP_SETJMP_CHECK# ifdef __linux__# ifdef _BSD_SOURCE# define PNG_SAVE_BSD_SOURCE# undef _BSD_SOURCE# endif# ifdef _SETJMP_H /* If you encounter a compiler error here, see the explanation * near the end of INSTALL. */ __pngconf.h__ in libpng already includes setjmp.h; __dont__ include it again.;# endif# endif /* __linux__ */# endif /* PNG_SKIP_SETJMP_CHECK */ /* include setjmp.h for error handling */# include <setjmp.h># ifdef __linux__# ifdef PNG_SAVE_BSD_SOURCE# ifndef _BSD_SOURCE# define _BSD_SOURCE# endif# undef PNG_SAVE_BSD_SOURCE# endif# endif /* __linux__ */#endif /* PNG_SETJMP_SUPPORTED */#if defined(BSD) && !defined(VXWORKS)# include <strings.h>#else# include <string.h>#endif/* Other defines for things like memory and the like can go here. */#ifdef PNG_INTERNAL#include <stdlib.h>/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which * aren't usually used outside the library (as far as I know), so it is * debatable if they should be exported at all. In the future, when it is * possible to have run-time registry of chunk-handling functions, some of * these will be made available again.#define PNG_EXTERN extern */#define PNG_EXTERN/* Other defines specific to compilers can go here. Try to keep * them inside an appropriate ifdef/endif pair for portability. */#if defined(PNG_FLOATING_POINT_SUPPORTED)# if defined(MACOS) /* We need to check that <math.h> hasn't already been included earlier * as it seems it doesn't agree with <fp.h>, yet we should really use * <fp.h> if possible. */# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)# include <fp.h># endif# else# include <math.h># endif# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) /* Amiga SAS/C: We must include builtin FPU functions when compiling using * MATH=68881 */# include <m68881.h># endif#endif/* Codewarrior on NT has linking problems without this. */#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)# define PNG_ALWAYS_EXTERN#endif/* This provides the non-ANSI (far) memory allocation routines. */#if defined(__TURBOC__) && defined(__MSDOS__)# include <mem.h># include <alloc.h>#endif/* I have no idea why is this necessary... */#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))# include <malloc.h>#endif/* This controls how fine the dithering gets. As this allocates * a largish chunk of memory (32K), those who are not as concerned * with dithering quality can decrease some or all of these. */#ifndef PNG_DITHER_RED_BITS# define PNG_DITHER_RED_BITS 5#endif#ifndef PNG_DITHER_GREEN_BITS# define PNG_DITHER_GREEN_BITS 5#endif#ifndef PNG_DITHER_BLUE_BITS# define PNG_DITHER_BLUE_BITS 5#endif/* This controls how fine the gamma correction becomes when you * are only interested in 8 bits anyway. Increasing this value * results in more memory being used, and more pow() functions * being called to fill in the gamma tables. Don't set this value * less then 8, and even that may not work (I haven't tested it). */#ifndef PNG_MAX_GAMMA_8# define PNG_MAX_GAMMA_8 11#endif/* This controls how much a difference in gamma we can tolerate before * we actually start doing gamma conversion. */#ifndef PNG_GAMMA_THRESHOLD# define PNG_GAMMA_THRESHOLD 0.05#endif#endif /* PNG_INTERNAL *//* The following uses const char * instead of char * for error * and warning message functions, so some compilers won't complain. * If you do not want to use const, define PNG_NO_CONST here. */#ifndef PNG_NO_CONST# define PNG_CONST const#else# define PNG_CONST#endif/* The following defines give you the ability to remove code from the * library that you will not be using. I wish I could figure out how to * automate this, but I can't do that without making it seriously hard * on the users. So if you are not using an ability, change the #define * to and #undef, and that part of the library will not be compiled. If * your linker can't find a function, you may want to make sure the * ability is defined here. Some of these depend upon some others being * defined. I haven't figured out all the interactions here, so you may * have to experiment awhile to get everything to compile. If you are * creating or using a shared library, you probably shouldn't touch this, * as it will affect the size of the structures, and this will cause bad * things to happen if the library and/or application ever change. *//* Any features you will not be using can be undef'ed here *//* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS * on the compile line, then pick and choose which ones to define without * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED * if you only want to have a png-compliant reader/writer but don't need * any of the extra transformations. This saves about 80 kbytes in a * typical installation of the library. (PNG_NO_* form added in version * 1.0.1c, for consistency) *//* The size of the png_text structure changed in libpng-1.0.6 when * iTXt support was added. iTXt support was turned off by default through * libpng-1.2.x, to support old apps that malloc the png_text structure * instead of calling png_set_text() and letting libpng malloc it. It * will be turned on by default in libpng-1.4.0. */#if defined(PNG_1_0_X) || defined (PNG_1_2_X)# ifndef PNG_NO_iTXt_SUPPORTED# define PNG_NO_iTXt_SUPPORTED# endif# ifndef PNG_NO_READ_iTXt# define PNG_NO_READ_iTXt# endif# ifndef PNG_NO_WRITE_iTXt# define PNG_NO_WRITE_iTXt# endif#endif#if !defined(PNG_NO_iTXt_SUPPORTED)# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)# define PNG_READ_iTXt# endif# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)# define PNG_WRITE_iTXt# endif#endif/* The following support, added after version 1.0.0, can be turned off here en * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility * with old applications that require the length of png_struct and png_info * to remain unchanged. */#ifdef PNG_LEGACY_SUPPORTED# define PNG_NO_FREE_ME# define PNG_NO_READ_UNKNOWN_CHUNKS# define PNG_NO_WRITE_UNKNOWN_CHUNKS# define PNG_NO_HANDLE_AS_UNKNOWN# define PNG_NO_READ_USER_CHUNKS# define PNG_NO_READ_iCCP# define PNG_NO_WRITE_iCCP# define PNG_NO_READ_iTXt# define PNG_NO_WRITE_iTXt# define PNG_NO_READ_sCAL# define PNG_NO_WRITE_sCAL# define PNG_NO_READ_sPLT# define PNG_NO_WRITE_sPLT# define PNG_NO_INFO_IMAGE# define PNG_NO_READ_RGB_TO_GRAY# define PNG_NO_READ_USER_TRANSFORM# define PNG_NO_WRITE_USER_TRANSFORM# define PNG_NO_USER_MEM# define PNG_NO_READ_EMPTY_PLTE# define PNG_NO_MNG_FEATURES# define PNG_NO_FIXED_POINT_SUPPORTED#endif/* Ignore attempt to turn off both floating and fixed point support */#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ !defined(PNG_NO_FIXED_POINT_SUPPORTED)# define PNG_FIXED_POINT_SUPPORTED#endif#ifndef PNG_NO_FREE_ME# define PNG_FREE_ME_SUPPORTED#endif#ifdef PNG_READ_SUPPORTED#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ !defined(PNG_NO_READ_TRANSFORMS)# define PNG_READ_TRANSFORMS_SUPPORTED#endif#ifdef PNG_READ_TRANSFORMS_SUPPORTED# ifndef PNG_NO_READ_EXPAND# define PNG_READ_EXPAND_SUPPORTED# endif# ifndef PNG_NO_READ_SHIFT# define PNG_READ_SHIFT_SUPPORTED# endif# ifndef PNG_NO_READ_PACK# define PNG_READ_PACK_SUPPORTED# endif# ifndef PNG_NO_READ_BGR# define PNG_READ_BGR_SUPPORTED# endif# ifndef PNG_NO_READ_SWAP# define PNG_READ_SWAP_SUPPORTED# endif# ifndef PNG_NO_READ_PACKSWAP# define PNG_READ_PACKSWAP_SUPPORTED# endif# ifndef PNG_NO_READ_INVERT# define PNG_READ_INVERT_SUPPORTED# endif# ifndef PNG_NO_READ_DITHER# define PNG_READ_DITHER_SUPPORTED# endif# ifndef PNG_NO_READ_BACKGROUND# define PNG_READ_BACKGROUND_SUPPORTED# endif# ifndef PNG_NO_READ_16_TO_8# define PNG_READ_16_TO_8_SUPPORTED# endif# ifndef PNG_NO_READ_FILLER# define PNG_READ_FILLER_SUPPORTED# endif# ifndef PNG_NO_READ_GAMMA# define PNG_READ_GAMMA_SUPPORTED# endif# ifndef PNG_NO_READ_GRAY_TO_RGB# define PNG_READ_GRAY_TO_RGB_SUPPORTED# endif# ifndef PNG_NO_READ_SWAP_ALPHA# define PNG_READ_SWAP_ALPHA_SUPPORTED# endif# ifndef PNG_NO_READ_INVERT_ALPHA# define PNG_READ_INVERT_ALPHA_SUPPORTED# endif# ifndef PNG_NO_READ_STRIP_ALPHA# define PNG_READ_STRIP_ALPHA_SUPPORTED# endif# ifndef PNG_NO_READ_USER_TRANSFORM# define PNG_READ_USER_TRANSFORM_SUPPORTED# endif# ifndef PNG_NO_READ_RGB_TO_GRAY# define PNG_READ_RGB_TO_GRAY_SUPPORTED# endif#endif /* PNG_READ_TRANSFORMS_SUPPORTED */#if !defined(PNG_NO_PROGRESSIVE_READ) && \ !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */#endif /* about interlacing capability! You'll */ /* still have interlacing unless you change the following line: */#define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */#ifndef PNG_NO_READ_COMPOSITE_NODIV# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */# endif#endif#if defined(PNG_1_0_X) || defined (PNG_1_2_X)/* Deprecated, will be removed from version 2.0.0. Use PNG_MNG_FEATURES_SUPPORTED instead. */#ifndef PNG_NO_READ_EMPTY_PLTE# define PNG_READ_EMPTY_PLTE_SUPPORTED#endif#endif#endif /* PNG_READ_SUPPORTED */#ifdef PNG_WRITE_SUPPORTED# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ !defined(PNG_NO_WRITE_TRANSFORMS)# define PNG_WRITE_TRANSFORMS_SUPPORTED#endif#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED# ifndef PNG_NO_WRITE_SHIFT# define PNG_WRITE_SHIFT_SUPPORTED# endif# ifndef PNG_NO_WRITE_PACK# define PNG_WRITE_PACK_SUPPORTED# endif# ifndef PNG_NO_WRITE_BGR# define PNG_WRITE_BGR_SUPPORTED# endif# ifndef PNG_NO_WRITE_SWAP# define PNG_WRITE_SWAP_SUPPORTED# endif# ifndef PNG_NO_WRITE_PACKSWAP# define PNG_WRITE_PACKSWAP_SUPPORTED# endif# ifndef PNG_NO_WRITE_INVERT# define PNG_WRITE_INVERT_SUPPORTED# endif# ifndef PNG_NO_WRITE_FILLER# define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */# endif# ifndef PNG_NO_WRITE_SWAP_ALPHA# define PNG_WRITE_SWAP_ALPHA_SUPPORTED# endif# ifndef PNG_NO_WRITE_INVERT_ALPHA# define PNG_WRITE_INVERT_ALPHA_SUPPORTED# endif# ifndef PNG_NO_WRITE_USER_TRANSFORM# define PNG_WRITE_USER_TRANSFORM_SUPPORTED# endif#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */#if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \ !defined(PNG_WRITE_INTERLACING_SUPPORTED)#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant encoders, but can cause trouble if left undefined */#endif#if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ !defined(PNG_WRITE_WEIGHTED_FILTER) && \ defined(PNG_FLOATING_POINT_SUPPORTED)# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED#endif#ifndef PNG_NO_WRITE_FLUSH# define PNG_WRITE_FLUSH_SUPPORTED#endif#if defined(PNG_1_0_X) || defined (PNG_1_2_X)/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */#ifndef PNG_NO_WRITE_EMPTY_PLTE# define PNG_WRITE_EMPTY_PLTE_SUPPORTED#endif#endif#endif /* PNG_WRITE_SUPPORTED */#ifndef PNG_1_0_X# ifndef PNG_NO_ERROR_NUMBERS# define PNG_ERROR_NUMBERS_SUPPORTED# endif#endif /* PNG_1_0_X */#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)# ifndef PNG_NO_USER_TRANSFORM_PTR# define PNG_USER_TRANSFORM_PTR_SUPPORTED# endif#endif#ifndef PNG_NO_STDIO# define PNG_TIME_RFC1123_SUPPORTED#endif/* This adds extra functions in pngget.c for accessing data from the * info pointer (added in version 0.99) * png_get_image_width() * png_get_image_height() * png_get_bit_depth() * png_get_color_type() * png_get_compression_type() * png_get_filter_type() * png_get_interlace_type() * png_get_pixel_aspect_ratio() * png_get_pixels_per_meter() * png_get_x_offset_pixels() * png_get_y_offset_pixels() * png_get_x_offset_microns() * png_get_y_offset_microns() */#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)# define PNG_EASY_ACCESS_SUPPORTED#endif/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 * and removed from version 1.2.20. The following will be removed * from libpng-1.4.0*/#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)# ifndef PNG_OPTIMIZED_CODE_SUPPORTED# define PNG_OPTIMIZED_CODE_SUPPORTED# endif#endif#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)# ifndef PNG_ASSEMBLER_CODE_SUPPORTED# define PNG_ASSEMBLER_CODE_SUPPORTED# endif# if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4) /* work around 64-bit gcc compiler bugs in gcc-3.x */# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)# define PNG_NO_MMX_CODE# endif# endif# if defined(__APPLE__)# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)# define PNG_NO_MMX_CODE# endif# endif# if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)# define PNG_NO_MMX_CODE# endif# endif# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)# define PNG_MMX_CODE_SUPPORTED# endif#endif/* end of obsolete code to be removed from libpng-1.4.0 */#if !defined(PNG_1_0_X)#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)# define PNG_USER_MEM_SUPPORTED#endif#endif /* PNG_1_0_X *//* Added at libpng-1.2.6 */#if !defined(PNG_1_0_X)#ifndef PNG_SET_USER_LIMITS_SUPPORTED#if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED)# define PNG_SET_USER_LIMITS_SUPPORTED#endif#endif#endif /* PNG_1_0_X *//* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter * how large, set these limits to 0x7fffffffL */#ifndef PNG_USER_WIDTH_MAX# define PNG_USER_WIDTH_MAX 1000000L#endif#ifndef PNG_USER_HEIGHT_MAX# define PNG_USER_HEIGHT_MAX 1000000L#endif/* Added at libpng-1.2.34 and 1.4.0 */#ifndef PNG_STRING_NEWLINE#define PNG_STRING_NEWLINE "\n"#endif/* These are currently experimental features, define them if you want *//* very little testing *//*#ifdef PNG_READ_SUPPORTED# ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED# define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED# endif#endif*//* This is only for PowerPC big-endian and 680x0 systems *//* some testing *//*#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED# define PNG_READ_BIG_ENDIAN_SUPPORTED#endif*//* Buggy compilers (e.g., gcc 2.7.2.2) need this *//*#define PNG_NO_POINTER_INDEXING*//* These functions are turned off by default, as they will be phased out. *//*#define PNG_USELESS_TESTS_SUPPORTED#define PNG_CORRECT_PALETTE_SUPPORTED*//* Any chunks you are not interested in, you can undef here. The * ones that allocate memory may be expecially important (hIST, * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info * a bit smaller. */#if defined(PNG_READ_SUPPORTED) && \ !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ !defined(PNG_NO_READ_ANCILLARY_CHUNKS)# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED#endif#if defined(PNG_WRITE_SUPPORTED) && \ !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)# define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED#endif#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED#ifdef PNG_NO_READ_TEXT# define PNG_NO_READ_iTXt# define PNG_NO_READ_tEXt# define PNG_NO_READ_zTXt#endif#ifndef PNG_NO_READ_bKGD# define PNG_READ_bKGD_SUPPORTED# define PNG_bKGD_SUPPORTED#endif#ifndef PNG_NO_READ_cHRM# define PNG_READ_cHRM_SUPPORTED# define PNG_cHRM_SUPPORTED#endif#ifndef PNG_NO_READ_gAMA# define PNG_READ_gAMA_SUPPORTED# define PNG_gAMA_SUPPORTED#endif#ifndef PNG_NO_READ_hIST# define PNG_READ_hIST_SUPPORTED# define PNG_hIST_SUPPORTED#endif#ifndef PNG_NO_READ_iCCP# define PNG_READ_iCCP_SUPPORTED# define PNG_iCCP_SUPPORTED#endif#ifndef PNG_NO_READ_iTXt# ifndef PNG_READ_iTXt_SUPPORTED# define PNG_READ_iTXt_SUPPORTED# endif# ifndef PNG_iTXt_SUPPORTED# define PNG_iTXt_SUPPORTED# endif#endif#ifndef PNG_NO_READ_oFFs# define PNG_READ_oFFs_SUPPORTED# define PNG_oFFs_SUPPORTED#endif#ifndef PNG_NO_READ_pCAL# define PNG_READ_pCAL_SUPPORTED# define PNG_pCAL_SUPPORTED#endif#ifndef PNG_NO_READ_sCAL# define PNG_READ_sCAL_SUPPORTED# define PNG_sCAL_SUPPORTED#endif#ifndef PNG_NO_READ_pHYs# define PNG_READ_pHYs_SUPPORTED# define PNG_pHYs_SUPPORTED#endif#ifndef PNG_NO_READ_sBIT# define PNG_READ_sBIT_SUPPORTED# define PNG_sBIT_SUPPORTED#endif#ifndef PNG_NO_READ_sPLT# define PNG_READ_sPLT_SUPPORTED# define PNG_sPLT_SUPPORTED#endif#ifndef PNG_NO_READ_sRGB# define PNG_READ_sRGB_SUPPORTED# define PNG_sRGB_SUPPORTED#endif#ifndef PNG_NO_READ_tEXt# define PNG_READ_tEXt_SUPPORTED# define PNG_tEXt_SUPPORTED#endif#ifndef PNG_NO_READ_tIME# define PNG_READ_tIME_SUPPORTED# define PNG_tIME_SUPPORTED#endif#ifndef PNG_NO_READ_tRNS# define PNG_READ_tRNS_SUPPORTED# define PNG_tRNS_SUPPORTED#endif#ifndef PNG_NO_READ_zTXt# define PNG_READ_zTXt_SUPPORTED# define PNG_zTXt_SUPPORTED#endif#ifndef PNG_NO_READ_OPT_PLTE# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */#endif /* optional PLTE chunk in RGB and RGBA images */#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ defined(PNG_READ_zTXt_SUPPORTED)# define PNG_READ_TEXT_SUPPORTED# define PNG_TEXT_SUPPORTED#endif#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */#ifndef PNG_NO_READ_UNKNOWN_CHUNKS# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED# define PNG_UNKNOWN_CHUNKS_SUPPORTED# endif#endif#if !defined(PNG_NO_READ_USER_CHUNKS) && \ defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)# define PNG_READ_USER_CHUNKS_SUPPORTED# define PNG_USER_CHUNKS_SUPPORTED# ifdef PNG_NO_READ_UNKNOWN_CHUNKS# undef PNG_NO_READ_UNKNOWN_CHUNKS# endif# ifdef PNG_NO_HANDLE_AS_UNKNOWN# undef PNG_NO_HANDLE_AS_UNKNOWN# endif#endif#ifndef PNG_NO_HANDLE_AS_UNKNOWN# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED# endif#endif#ifdef PNG_WRITE_SUPPORTED#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED#ifdef PNG_NO_WRITE_TEXT# define PNG_NO_WRITE_iTXt# define PNG_NO_WRITE_tEXt# define PNG_NO_WRITE_zTXt#endif#ifndef PNG_NO_WRITE_bKGD# define PNG_WRITE_bKGD_SUPPORTED# ifndef PNG_bKGD_SUPPORTED# define PNG_bKGD_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_cHRM# define PNG_WRITE_cHRM_SUPPORTED# ifndef PNG_cHRM_SUPPORTED# define PNG_cHRM_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_gAMA# define PNG_WRITE_gAMA_SUPPORTED# ifndef PNG_gAMA_SUPPORTED# define PNG_gAMA_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_hIST# define PNG_WRITE_hIST_SUPPORTED# ifndef PNG_hIST_SUPPORTED# define PNG_hIST_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_iCCP# define PNG_WRITE_iCCP_SUPPORTED# ifndef PNG_iCCP_SUPPORTED# define PNG_iCCP_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_iTXt# ifndef PNG_WRITE_iTXt_SUPPORTED# define PNG_WRITE_iTXt_SUPPORTED# endif# ifndef PNG_iTXt_SUPPORTED# define PNG_iTXt_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_oFFs# define PNG_WRITE_oFFs_SUPPORTED# ifndef PNG_oFFs_SUPPORTED# define PNG_oFFs_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_pCAL# define PNG_WRITE_pCAL_SUPPORTED# ifndef PNG_pCAL_SUPPORTED# define PNG_pCAL_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_sCAL# define PNG_WRITE_sCAL_SUPPORTED# ifndef PNG_sCAL_SUPPORTED# define PNG_sCAL_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_pHYs# define PNG_WRITE_pHYs_SUPPORTED# ifndef PNG_pHYs_SUPPORTED# define PNG_pHYs_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_sBIT# define PNG_WRITE_sBIT_SUPPORTED# ifndef PNG_sBIT_SUPPORTED# define PNG_sBIT_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_sPLT# define PNG_WRITE_sPLT_SUPPORTED# ifndef PNG_sPLT_SUPPORTED# define PNG_sPLT_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_sRGB# define PNG_WRITE_sRGB_SUPPORTED# ifndef PNG_sRGB_SUPPORTED# define PNG_sRGB_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_tEXt# define PNG_WRITE_tEXt_SUPPORTED# ifndef PNG_tEXt_SUPPORTED# define PNG_tEXt_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_tIME# define PNG_WRITE_tIME_SUPPORTED# ifndef PNG_tIME_SUPPORTED# define PNG_tIME_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_tRNS# define PNG_WRITE_tRNS_SUPPORTED# ifndef PNG_tRNS_SUPPORTED# define PNG_tRNS_SUPPORTED# endif#endif#ifndef PNG_NO_WRITE_zTXt# define PNG_WRITE_zTXt_SUPPORTED# ifndef PNG_zTXt_SUPPORTED# define PNG_zTXt_SUPPORTED# endif#endif#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ defined(PNG_WRITE_zTXt_SUPPORTED)# define PNG_WRITE_TEXT_SUPPORTED# ifndef PNG_TEXT_SUPPORTED# define PNG_TEXT_SUPPORTED# endif#endif#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED# define PNG_UNKNOWN_CHUNKS_SUPPORTED# endif#endif#ifndef PNG_NO_HANDLE_AS_UNKNOWN# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED# endif#endif#endif /* PNG_WRITE_SUPPORTED *//* Turn this off to disable png_read_png() and * png_write_png() and leave the row_pointers member * out of the info structure. */#ifndef PNG_NO_INFO_IMAGE# define PNG_INFO_IMAGE_SUPPORTED#endif/* need the time information for reading tIME chunks */#if defined(PNG_tIME_SUPPORTED)# if !defined(_WIN32_WCE) /* "time.h" functions are not supported on WindowsCE */# include <time.h># endif#endif/* Some typedefs to get us started. These should be safe on most of the * common platforms. The typedefs should be at least as large as the * 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;#elsetypedef FILE * png_FILE_p;#endif#endif#ifdef PNG_FLOATING_POINT_SUPPORTEDtypedef 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_SUPPORTEDtypedef 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-1.4.0 - 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(__arm__)) || defined (__ARMCC__)# define PNGAPI# elif defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) || defined(__WINSCW__)# 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# if !defined(PNG_IMPEXP)# include <qconfig.h># if defined(QT_VISIBILITY_AVAILABLE)# define PNG_IMPEXP __attribute__((visibility("default")))# 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 */