diff --git a/portlibs/include/pngconf.h b/portlibs/include/pngconf.h index 464458d0..7d178024 100644 --- a/portlibs/include/pngconf.h +++ b/portlibs/include/pngconf.h @@ -1,1487 +1,1540 @@ - -/* pngconf.h - machine configurable file for libpng - * - * libpng version 1.2.34 - December 18, 2008 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2008 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.) - */ - -/* 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 - * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." - * #define PNG_USER_DLLFNAME_POSTFIX - * 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 - /* Console I/O functions are not supported on WindowsCE */ -# define PNG_NO_CONSOLE_IO -# 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 -# endif -# endif -# else -# if !defined(_WIN32_WCE) -/* "stdio.h" functions are not supported on WindowsCE */ -# include -# 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 -#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. - */ - -# 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__ already includes setjmp.h; - __dont__ include it again.; -# endif -# endif /* __linux__ */ - - /* include setjmp.h for error handling */ -# include - -# 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 */ - -#ifdef BSD -# include -#else -# include -#endif - -/* Other defines for things like memory and the like can go here. */ -#ifdef PNG_INTERNAL - -#include - -/* 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 hasn't already been included earlier - * as it seems it doesn't agree with , yet we should really use - * if possible. - */ -# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) -# include -# endif -# else -# include -# endif -# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) - /* Amiga SAS/C: We must include builtin FPU functions when compiling using - * MATH=68881 - */ -# include -# 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 -# include -#endif - -/* I have no idea why is this necessary... */ -#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ - defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) -# include -#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 - * was turned on by default in libpng-1.3.0. - */ - -#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_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 - -#if defined(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 */ - -#if defined(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_UNKNOWN_CHUNKS -# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_UNKNOWN_CHUNKS_SUPPORTED -# endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# define PNG_HANDLE_AS_UNKNOWN_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_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 */ - -#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 -#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS -# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_UNKNOWN_CHUNKS_SUPPORTED -# endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# endif -# 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 */ - -/* 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 -# 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 -# 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 */ + +/* pngconf.h - machine configurable file for libpng + * + * libpng version 1.4.4 - September 23, 2010 + * For conditions of distribution and use, see copyright notice in png.h + * Copyright (c) 1998-2010 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 + +#ifndef PNG_NO_LIMITS_H +# include +#endif + +/* Added at libpng-1.2.9 */ + +/* config.h is created by and 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 + * + * 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 +# include "pngusr.h" +# ifndef PNG_USER_PRIVATEBUILD +# define PNG_USER_PRIVATEBUILD +# endif +#endif + +/* + * If you create a private DLL you should define in "pngusr.h" the following: + * #define PNG_USER_PRIVATEBUILD + * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." + * #define PNG_USER_DLLFNAME_POSTFIX + * e.g. // private DLL "libpng14gx.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__ */ + +/* End of material added to libpng-1.2.8 */ + +#ifndef PNG_VERSION_INFO_ONLY + +/* 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 in 1.4.0. */ +#ifdef PNG_ALLOW_BENIGN_ERRORS +# define png_benign_error png_warning +# define png_chunk_benign_error png_chunk_warning +#else +# ifndef PNG_BENIGN_ERRORS_SUPPORTED +# define png_benign_error png_error +# define png_chunk_benign_error png_chunk_error +# endif +#endif + +/* Added at libpng version 1.4.0 */ +#if !defined(PNG_NO_WARNINGS) && !defined(PNG_WARNINGS_SUPPORTED) +# define PNG_WARNINGS_SUPPORTED +#endif + +/* Added at libpng version 1.4.0 */ +#if !defined(PNG_NO_ERROR_TEXT) && !defined(PNG_ERROR_TEXT_SUPPORTED) +# define PNG_ERROR_TEXT_SUPPORTED +#endif + +/* Added at libpng version 1.4.0 */ +#if !defined(PNG_NO_CHECK_cHRM) && !defined(PNG_CHECK_cHRM_SUPPORTED) +# define PNG_CHECK_cHRM_SUPPORTED +#endif + +/* Added at libpng version 1.4.0 */ +#if !defined(PNG_NO_ALIGNED_MEMORY) && !defined(PNG_ALIGNED_MEMORY_SUPPORTED) +# define PNG_ALIGNED_MEMORY_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 */ +#ifndef PNG_NO_MNG_FEATURES +# ifndef PNG_MNG_FEATURES_SUPPORTED +# define PNG_MNG_FEATURES_SUPPORTED +# endif +#endif + +/* Added at libpng version 1.4.0 */ +#ifndef PNG_NO_FLOATING_POINT_SUPPORTED +# ifndef PNG_FLOATING_POINT_SUPPORTED +# define PNG_FLOATING_POINT_SUPPORTED +# endif +#endif + +/* Added at libpng-1.4.0beta49 for testing (this test is no longer used + in libpng and png_calloc() is always present) + */ +#define PNG_CALLOC_SUPPORTED + +/* 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. + */ +#ifdef __CYGWIN__ +# ifdef ALL_STATIC +# ifdef PNG_BUILD_DLL +# undef PNG_BUILD_DLL +# endif +# ifdef PNG_USE_DLL +# undef PNG_USE_DLL +# endif +# ifdef PNG_DLL +# undef PNG_DLL +# endif +# ifndef PNG_STATIC +# define PNG_STATIC +# endif +# else +# ifdef PNG_BUILD_DLL +# ifdef PNG_STATIC +# undef PNG_STATIC +# endif +# ifdef PNG_USE_DLL +# undef PNG_USE_DLL +# endif +# ifndef PNG_DLL +# define PNG_DLL +# endif +# else +# ifdef PNG_STATIC +# ifdef PNG_USE_DLL +# undef PNG_USE_DLL +# endif +# ifdef PNG_DLL +# undef PNG_DLL +# endif +# else +# ifndef PNG_USE_DLL +# define PNG_USE_DLL +# endif +# ifndef 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 + */ + +#ifdef _WIN32_WCE +# define PNG_NO_CONSOLE_IO +# define PNG_NO_STDIO +# define PNG_NO_TIME_RFC1123 +# ifdef PNG_DEBUG +# undef PNG_DEBUG +# endif +#endif + +#if !defined(PNG_NO_STDIO) && !defined(PNG_STDIO_SUPPORTED) +# define PNG_STDIO_SUPPORTED +#endif + +#ifdef PNG_BUILD_DLL +# if !defined(PNG_CONSOLE_IO_SUPPORTED) && !defined(PNG_NO_CONSOLE_IO) +# define PNG_NO_CONSOLE_IO +# 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 +# endif +# endif +# else +# include +# endif + +#if !(defined PNG_NO_CONSOLE_IO) && !defined(PNG_CONSOLE_IO_SUPPORTED) +# define PNG_CONSOLE_IO_SUPPORTED +#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) () +#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) +# include +#endif + +/* PNG_SETJMP_NOT_SUPPORTED and PNG_NO_SETJMP_SUPPORTED are deprecated. */ +#if !defined(PNG_NO_SETJMP) && \ + !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 + +# ifdef __linux__ +# ifdef PNG_SAVE_BSD_SOURCE +# ifdef _BSD_SOURCE +# undef _BSD_SOURCE +# endif +# define _BSD_SOURCE +# undef PNG_SAVE_BSD_SOURCE +# endif +# endif /* __linux__ */ +#endif /* PNG_SETJMP_SUPPORTED */ + +#ifdef BSD +# include +#else +# include +#endif + +/* Other defines for things like memory and the like can go here. */ + +/* This controls how fine the quantizing gets. As this allocates + * a largish chunk of memory (32K), those who are not as concerned + * with quantizing quality can decrease some or all of these. + */ + +/* Prior to libpng-1.4.2, these were PNG_DITHER_*_BITS + * These migration aids will be removed from libpng-1.5.0. + */ +#ifdef PNG_DITHER_RED_BITS +# define PNG_QUANTIZE_RED_BITS PNG_DITHER_RED_BITS +#endif +#ifdef PNG_DITHER_GREEN_BITS +# define PNG_QUANTIZE_GREEN_BITS PNG_DITHER_GREEN_BITS +#endif +#ifdef PNG_DITHER_BLUE_BITS +# define PNG_QUANTIZE_BLUE_BITS PNG_DITHER_BLUE_BITS +#endif + +#ifndef PNG_QUANTIZE_RED_BITS +# define PNG_QUANTIZE_RED_BITS 5 +#endif +#ifndef PNG_QUANTIZE_GREEN_BITS +# define PNG_QUANTIZE_GREEN_BITS 5 +#endif +#ifndef PNG_QUANTIZE_BLUE_BITS +# define PNG_QUANTIZE_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 + +/* 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. + */ + +#ifndef PNG_CONST +# ifndef PNG_NO_CONST +# define PNG_CONST const +# else +# define PNG_CONST +# endif +#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 an #undef, or pass in PNG_NO_feature 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 PNG_NO_READ|WRITE_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 PNG_NO_READ|WRITE_TRANSFORMS + * 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; PNG_*_TRANSFORMS_NOT_SUPPORTED deprecated in + * 1.4.0) + */ + +/* 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 + +#ifdef PNG_READ_SUPPORTED + +/* PNG_READ_TRANSFORMS_NOT_SUPPORTED is deprecated. */ +#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_QUANTIZE + /* Prior to libpng-1.4.0 this was PNG_READ_DITHER_SUPPORTED */ +# ifndef PNG_NO_READ_DITHER /* This migration aid will be removed */ +# define PNG_READ_QUANTIZE_SUPPORTED +# endif +# 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 */ + +/* PNG_PROGRESSIVE_READ_NOT_SUPPORTED is deprecated. */ +#if !defined(PNG_NO_PROGRESSIVE_READ) && \ + !defined(PNG_PROGRESSIVE_READ_NOT_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 define: */ + +#define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */ + +/* PNG_NO_SEQUENTIAL_READ_SUPPORTED is deprecated. */ +#if !defined(PNG_NO_SEQUENTIAL_READ) && \ + !defined(PNG_SEQUENTIAL_READ_SUPPORTED) && \ + !defined(PNG_NO_SEQUENTIAL_READ_SUPPORTED) +# define PNG_SEQUENTIAL_READ_SUPPORTED +#endif + +#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_NO_GET_INT_32) || defined(PNG_READ_oFFS_SUPPORTED) || \ + defined(PNG_READ_pCAL_SUPPORTED) +# ifndef PNG_GET_INT_32_SUPPORTED +# define PNG_GET_INT_32_SUPPORTED +# endif +#endif + +#endif /* PNG_READ_SUPPORTED */ + +#ifdef PNG_WRITE_SUPPORTED + +/* PNG_WRITE_TRANSFORMS_NOT_SUPPORTED is deprecated. */ +#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) + /* This is not required for PNG-compliant encoders, but can cause + * trouble if left undefined + */ +# define PNG_WRITE_INTERLACING_SUPPORTED +#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_NO_SAVE_INT_32) || defined(PNG_WRITE_oFFS_SUPPORTED) || \ + defined(PNG_WRITE_pCAL_SUPPORTED) +# ifndef PNG_SAVE_INT_32_SUPPORTED +# define PNG_SAVE_INT_32_SUPPORTED +# endif +#endif + +#endif /* PNG_WRITE_SUPPORTED */ + +#define PNG_NO_ERROR_NUMBERS + +#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 + +#if defined(PNG_STDIO_SUPPORTED) && !defined(PNG_TIME_RFC1123_SUPPORTED) +# 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 + +/* Added at libpng-1.2.0 */ +#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) +# define PNG_USER_MEM_SUPPORTED +#endif + +/* Added at libpng-1.2.6 */ +#ifndef PNG_NO_SET_USER_LIMITS +# ifndef PNG_SET_USER_LIMITS_SUPPORTED +# define PNG_SET_USER_LIMITS_SUPPORTED +# endif + /* Feature added at libpng-1.4.0, this flag added at 1.4.1 */ +# ifndef PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED +# define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED +# endif + /* Feature added at libpng-1.4.1, this flag added at 1.4.1 */ +# ifndef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED +# define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED +# endif +#endif + +/* Added at libpng-1.2.43 */ +#ifndef PNG_USER_LIMITS_SUPPORTED +# ifndef PNG_NO_USER_LIMITS +# define PNG_USER_LIMITS_SUPPORTED +# endif +#endif + +/* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGs no matter + * how large, set these two 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-1.2.43. To accept all valid PNGs no matter + * how large, set these two limits to 0. + */ +#ifndef PNG_USER_CHUNK_CACHE_MAX +# define PNG_USER_CHUNK_CACHE_MAX 0 +#endif + +/* Added at libpng-1.2.43 */ +#ifndef PNG_USER_CHUNK_MALLOC_MAX +# define PNG_USER_CHUNK_MALLOC_MAX 0 +#endif + +/* Added at libpng-1.4.0 */ +#if !defined(PNG_NO_IO_STATE) && !defined(PNG_IO_STATE_SUPPORTED) +# define PNG_IO_STATE_SUPPORTED +#endif + +#ifndef PNG_LITERAL_SHARP +# define PNG_LITERAL_SHARP 0x23 +#endif +#ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET +# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b +#endif +#ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET +# define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d +#endif +#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 +*/ + +#if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS) +# define PNG_USE_READ_MACROS +#endif + +/* Buggy compilers (e.g., gcc 2.7.2.2) need PNG_NO_POINTER_INDEXING */ + +#if !defined(PNG_NO_POINTER_INDEXING) && \ + !defined(PNG_POINTER_INDEXING_SUPPORTED) +# define PNG_POINTER_INDEXING_SUPPORTED +#endif + + +/* 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. + */ + +/* 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 + * was turned on by default in libpng-1.4.0. + */ + +/* PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated. */ +#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 + +/* PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated. */ +#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 +# ifndef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED +# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED +# endif +# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED +# define PNG_UNKNOWN_CHUNKS_SUPPORTED +# endif +# ifndef PNG_READ_USER_CHUNKS_SUPPORTED +# define PNG_READ_USER_CHUNKS_SUPPORTED +# endif +#endif +#ifndef PNG_NO_READ_USER_CHUNKS +# ifndef PNG_READ_USER_CHUNKS_SUPPORTED +# define PNG_READ_USER_CHUNKS_SUPPORTED +# endif +# ifndef PNG_USER_CHUNKS_SUPPORTED +# define PNG_USER_CHUNKS_SUPPORTED +# 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 + +#ifdef PNG_WRITE_tIME_SUPPORTED +# ifndef PNG_NO_CONVERT_tIME +# ifndef _WIN32_WCE +/* The "tm" structure is not supported on WindowsCE */ +# ifndef PNG_CONVERT_tIME_SUPPORTED +# define PNG_CONVERT_tIME_SUPPORTED +# endif +# endif +# endif +#endif + +#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ + +#ifndef PNG_NO_WRITE_FILTER +# ifndef PNG_WRITE_FILTER_SUPPORTED +# define PNG_WRITE_FILTER_SUPPORTED +# endif +#endif + +#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 converting tIME chunks */ +#ifdef PNG_CONVERT_tIME_SUPPORTED + /* "time.h" functions are not supported on WindowsCE */ +# include +#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. + */ + +#if defined(INT_MAX) && (INT_MAX > 0x7ffffffeL) +typedef unsigned int png_uint_32; +typedef int png_int_32; +#else +typedef unsigned long png_uint_32; +typedef long png_int_32; +#endif +typedef unsigned short png_uint_16; +typedef short png_int_16; +typedef unsigned char png_byte; + +#ifdef PNG_NO_SIZE_T + typedef unsigned int png_size_t; +#else + typedef size_t png_size_t; +#endif +#define png_sizeof(x) (sizeof (x)) + +/* The following is needed for medium model support. It cannot be in the + * pngpriv.h header. 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 */ +#ifdef FAR +# ifdef M_I86MM +# define USE_FAR_KEYWORD +# define FARDATA FAR +# include +# 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 +typedef FILE * png_FILE_p; +#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; + +/* 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 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. + */ + +#ifdef __CYGWIN__ +# undef PNGAPI +# define PNGAPI __cdecl +# undef PNG_IMPEXP +# define PNG_IMPEXP +#endif + +#ifdef __WATCOMC__ +# ifndef PNGAPI +# define PNGAPI +# endif +#endif + +#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 + +# ifndef 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 +# ifdef 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 + +# ifndef PNG_IMPEXP +# ifdef 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 +#endif + +#ifndef PNG_EXPORT +# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol +#endif + +#define PNG_USE_LOCAL_ARRAYS /* Not used in libpng, defined for legacy apps */ + +/* Support for compiler specific function attributes. These are used + * so that where compiler support is available incorrect use of API + * functions in png.h will generate compiler warnings. + * + * Added at libpng-1.2.41. + */ + +#ifndef PNG_NO_PEDANTIC_WARNINGS +# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED +# define PNG_PEDANTIC_WARNINGS_SUPPORTED +# endif +#endif + +#ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED +/* Support for compiler specific function attributes. These are used + * so that where compiler support is available incorrect use of API + * functions in png.h will generate compiler warnings. Added at libpng + * version 1.2.41. + */ +# ifdef __GNUC__ +# ifndef PNG_USE_RESULT +# define PNG_USE_RESULT __attribute__((__warn_unused_result__)) +# endif +# ifndef PNG_NORETURN +# define PNG_NORETURN __attribute__((__noreturn__)) +# endif +# ifndef PNG_ALLOCATED +# define PNG_ALLOCATED __attribute__((__malloc__)) +# endif + + /* This specifically protects structure members that should only be + * accessed from within the library, therefore should be empty during + * a library build. + */ +# ifndef PNG_DEPRECATED +# define PNG_DEPRECATED __attribute__((__deprecated__)) +# endif +# ifndef PNG_DEPSTRUCT +# define PNG_DEPSTRUCT __attribute__((__deprecated__)) +# endif +# ifndef PNG_PRIVATE +# if 0 /* Doesn't work so we use deprecated instead*/ +# define PNG_PRIVATE \ + __attribute__((warning("This function is not exported by libpng."))) +# else +# define PNG_PRIVATE \ + __attribute__((__deprecated__)) +# endif +# endif /* PNG_PRIVATE */ +# endif /* __GNUC__ */ +#endif /* PNG_PEDANTIC_WARNINGS */ + +#ifndef PNG_DEPRECATED +# define PNG_DEPRECATED /* Use of this function is deprecated */ +#endif +#ifndef PNG_USE_RESULT +# define PNG_USE_RESULT /* The result of this function must be checked */ +#endif +#ifndef PNG_NORETURN +# define PNG_NORETURN /* This function does not return */ +#endif +#ifndef PNG_ALLOCATED +# define PNG_ALLOCATED /* The result of the function is new memory */ +#endif +#ifndef PNG_DEPSTRUCT +# define PNG_DEPSTRUCT /* Access to this struct member is deprecated */ +#endif +#ifndef PNG_PRIVATE +# define PNG_PRIVATE /* This is a private libpng function */ +#endif + +/* Users may want to use these so they are not private. Any library + * functions that are passed far data must be model-independent. + */ + +/* memory model/platform independent fns */ +#ifndef PNG_ABORT +# if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) +# define PNG_ABORT() ExitProcess(0) +# else +# define PNG_ABORT() abort() +# endif +#endif + +#ifdef USE_FAR_KEYWORD +/* 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_strcpy _fstrcpy +# define png_strncpy _fstrncpy /* Added to v 1.2.6 */ +# define png_strlen _fstrlen +# define png_memcmp _fmemcmp /* SJT: added */ +# define png_memcpy _fmemcpy +# define png_memset _fmemset +# define png_sprintf sprintf +#else +# if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) +# /* Favor Windows over C runtime fns */ +# define CVT_PTR(ptr) (ptr) +# define CVT_PTR_NOCHECK(ptr) (ptr) +# define png_strcpy lstrcpyA +# define png_strncpy lstrcpynA +# define png_strlen lstrlenA +# define png_memcmp memcmp +# define png_memcpy CopyMemory +# define png_memset memset +# define png_sprintf wsprintfA +# else +# define CVT_PTR(ptr) (ptr) +# define CVT_PTR_NOCHECK(ptr) (ptr) +# define png_strcpy strcpy +# define png_strncpy strncpy /* Added to v 1.2.6 */ +# define png_strlen strlen +# define png_memcmp memcmp /* SJT: added */ +# define png_memcpy memcpy +# define png_memset memset +# define png_sprintf sprintf +# endif +#endif + +#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) png_sprintf(s1,fmt,x1) +# define png_snprintf2(s1,n,fmt,x1,x2) png_sprintf(s1,fmt,x1,x2) +# define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \ + png_sprintf(s1,fmt,x1,x2,x3,x4,x5,x6) +#endif + +/* png_alloc_size_t is guaranteed to be no smaller than png_size_t, + * and no smaller than png_uint_32. Casts from png_size_t or png_uint_32 + * to png_alloc_size_t are not necessary; in fact, it is recommended + * not to use them at all so that the compiler can complain when something + * turns out to be problematic. + * Casts in the other direction (from png_alloc_size_t to png_size_t or + * png_uint_32) should be explicitly applied; however, we do not expect + * to encounter practical situations that require such conversions. + */ +#if defined(__TURBOC__) && !defined(__FLAT__) + typedef unsigned long png_alloc_size_t; +#else +# if defined(_MSC_VER) && defined(MAXSEG_64K) + typedef unsigned long png_alloc_size_t; +# else + /* This is an attempt to detect an old Windows system where (int) is + * actually 16 bits, in that case png_malloc must have an argument with a + * bigger size to accomodate the requirements of the library. + */ +# if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) && \ + (!defined(INT_MAX) || INT_MAX <= 0x7ffffffeL) + typedef DWORD png_alloc_size_t; +# else + typedef png_size_t png_alloc_size_t; +# endif +# endif +#endif +/* End of memory model/platform 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 */ diff --git a/portlibs/lib/libpng.a b/portlibs/lib/libpng.a index cc07e34f..92e54031 100644 Binary files a/portlibs/lib/libpng.a and b/portlibs/lib/libpng.a differ diff --git a/source/gui/png.h b/source/gui/png.h index e0cec0c2..f46e97ce 100644 --- a/source/gui/png.h +++ b/source/gui/png.h @@ -1,14 +1,17 @@ + /* png.h - header file for PNG reference library * - * libpng version 1.2.29 - May 8, 2008 - * Copyright (c) 1998-2008 Glenn Randers-Pehrson + * libpng version 1.4.4 - September 23, 2010 + * Copyright (c) 1998-2010 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 (See LICENSE, below) + * * Authors and maintainers: * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.2.29 - May 8, 2008: Glenn + * libpng versions 0.97, January 1998, through 1.4.4 - September 23, 2010: Glenn * See also "Contributing Authors", below. * * Note about libpng version numbers: @@ -102,96 +105,48 @@ * 1.0.16 10 10016 10.so.0.1.0.16 * 1.2.6 13 10206 12.so.0.1.2.6 * 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 - * 1.0.17rc1 10 10017 10.so.0.1.0.17rc1 + * 1.0.17rc1 10 10017 12.so.0.1.0.17rc1 * 1.2.7rc1 13 10207 12.so.0.1.2.7rc1 - * 1.0.17 10 10017 10.so.0.1.0.17 + * 1.0.17 10 10017 12.so.0.1.0.17 * 1.2.7 13 10207 12.so.0.1.2.7 * 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5 - * 1.0.18rc1-5 10 10018 10.so.0.1.0.18rc1-5 + * 1.0.18rc1-5 10 10018 12.so.0.1.0.18rc1-5 * 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5 - * 1.0.18 10 10018 10.so.0.1.0.18 + * 1.0.18 10 10018 12.so.0.1.0.18 * 1.2.8 13 10208 12.so.0.1.2.8 * 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3 * 1.2.9beta4-11 13 10209 12.so.0.9[.0] * 1.2.9rc1 13 10209 12.so.0.9[.0] * 1.2.9 13 10209 12.so.0.9[.0] - * 1.2.10beta1-8 13 10210 12.so.0.10[.0] - * 1.2.10rc1-3 13 10210 12.so.0.10[.0] + * 1.2.10beta1-7 13 10210 12.so.0.10[.0] + * 1.2.10rc1-2 13 10210 12.so.0.10[.0] * 1.2.10 13 10210 12.so.0.10[.0] + * 1.4.0beta1-5 14 10400 14.so.0.0[.0] * 1.2.11beta1-4 13 10211 12.so.0.11[.0] - * 1.0.19rc1-5 10 10019 10.so.0.19[.0] - * 1.2.11rc1-5 13 10211 12.so.0.11[.0] - * 1.0.19 10 10019 10.so.0.19[.0] + * 1.4.0beta7-8 14 10400 14.so.0.0[.0] * 1.2.11 13 10211 12.so.0.11[.0] - * 1.0.20 10 10020 10.so.0.20[.0] * 1.2.12 13 10212 12.so.0.12[.0] - * 1.2.13beta1 13 10213 12.so.0.13[.0] - * 1.0.21 10 10021 10.so.0.21[.0] + * 1.4.0beta9-14 14 10400 14.so.0.0[.0] * 1.2.13 13 10213 12.so.0.13[.0] - * 1.2.14beta1-2 13 10214 12.so.0.14[.0] - * 1.0.22rc1 10 10022 10.so.0.22[.0] - * 1.2.14rc1 13 10214 12.so.0.14[.0] - * 1.0.22 10 10022 10.so.0.22[.0] - * 1.2.14 13 10214 12.so.0.14[.0] - * 1.2.15beta1-6 13 10215 12.so.0.15[.0] - * 1.0.23rc1-5 10 10023 10.so.0.23[.0] - * 1.2.15rc1-5 13 10215 12.so.0.15[.0] - * 1.0.23 10 10023 10.so.0.23[.0] - * 1.2.15 13 10215 12.so.0.15[.0] - * 1.2.16beta1-2 13 10216 12.so.0.16[.0] - * 1.2.16rc1 13 10216 12.so.0.16[.0] - * 1.0.24 10 10024 10.so.0.24[.0] - * 1.2.16 13 10216 12.so.0.16[.0] - * 1.2.17beta1-2 13 10217 12.so.0.17[.0] - * 1.0.25rc1 10 10025 10.so.0.25[.0] - * 1.2.17rc1-3 13 10217 12.so.0.17[.0] - * 1.0.25 10 10025 10.so.0.25[.0] - * 1.2.17 13 10217 12.so.0.17[.0] - * 1.0.26 10 10026 10.so.0.26[.0] - * 1.2.18 13 10218 12.so.0.18[.0] - * 1.2.19beta1-31 13 10219 12.so.0.19[.0] - * 1.0.27rc1-6 10 10027 10.so.0.27[.0] - * 1.2.19rc1-6 13 10219 12.so.0.19[.0] - * 1.0.27 10 10027 10.so.0.27[.0] - * 1.2.19 13 10219 12.so.0.19[.0] - * 1.2.20beta01-04 13 10220 12.so.0.20[.0] - * 1.0.28rc1-6 10 10028 10.so.0.28[.0] - * 1.2.20rc1-6 13 10220 12.so.0.20[.0] - * 1.0.28 10 10028 10.so.0.28[.0] - * 1.2.20 13 10220 12.so.0.20[.0] - * 1.2.21beta1-2 13 10221 12.so.0.21[.0] - * 1.2.21rc1-3 13 10221 12.so.0.21[.0] - * 1.0.29 10 10029 10.so.0.29[.0] - * 1.2.21 13 10221 12.so.0.21[.0] - * 1.2.22beta1-4 13 10222 12.so.0.22[.0] - * 1.0.30rc1 10 10030 10.so.0.30[.0] - * 1.2.22rc1 13 10222 12.so.0.22[.0] - * 1.0.30 10 10030 10.so.0.30[.0] - * 1.2.22 13 10222 12.so.0.22[.0] - * 1.2.23beta01-05 13 10223 12.so.0.23[.0] - * 1.2.23rc01 13 10223 12.so.0.23[.0] - * 1.2.23 13 10223 12.so.0.23[.0] - * 1.2.24beta01-02 13 10224 12.so.0.24[.0] - * 1.2.24rc01 13 10224 12.so.0.24[.0] - * 1.2.24 13 10224 12.so.0.24[.0] - * 1.2.25beta01-06 13 10225 12.so.0.25[.0] - * 1.2.25rc01-02 13 10225 12.so.0.25[.0] - * 1.0.31 10 10031 10.so.0.31[.0] - * 1.2.25 13 10225 12.so.0.25[.0] - * 1.2.26beta01-06 13 10226 12.so.0.26[.0] - * 1.2.26rc01 13 10226 12.so.0.26[.0] - * 1.2.26 13 10226 12.so.0.26[.0] - * 1.0.32 10 10032 10.so.0.32[.0] - * 1.2.27beta01-06 13 10227 12.so.0.27[.0] - * 1.2.27rc01 13 10227 12.so.0.27[.0] - * 1.0.33 10 10033 10.so.0.33[.0] - * 1.2.27 13 10227 12.so.0.27[.0] - * 1.0.34 10 10034 10.so.0.34[.0] - * 1.2.28 13 10228 12.so.0.28[.0] - * 1.2.29beta01-03 13 10229 12.so.0.29[.0] - * 1.2.29rc01 13 10229 12.so.0.29[.0] - * 1.0.35 10 10035 10.so.0.35[.0] - * 1.2.29 13 10229 12.so.0.29[.0] + * 1.4.0beta15-36 14 10400 14.so.0.0[.0] + * 1.4.0beta37-87 14 10400 14.so.14.0[.0] + * 1.4.0rc01 14 10400 14.so.14.0[.0] + * 1.4.0beta88-109 14 10400 14.so.14.0[.0] + * 1.4.0rc02-08 14 10400 14.so.14.0[.0] + * 1.4.0 14 10400 14.so.14.0[.0] + * 1.4.1beta01-03 14 10401 14.so.14.1[.0] + * 1.4.1rc01 14 10401 14.so.14.1[.0] + * 1.4.1beta04-12 14 10401 14.so.14.1[.0] + * 1.4.1rc02-04 14 10401 14.so.14.1[.0] + * 1.4.1 14 10401 14.so.14.1[.0] + * 1.4.2beta01 14 10402 14.so.14.2[.0] + * 1.4.2rc02-06 14 10402 14.so.14.2[.0] + * 1.4.2 14 10402 14.so.14.2[.0] + * 1.4.3beta01-05 14 10403 14.so.14.3[.0] + * 1.4.3rc01-03 14 10403 14.so.14.3[.0] + * 1.4.3 14 10403 14.so.14.3[.0] + * 1.4.4beta01-08 14 10404 14.so.14.4[.0] + * 1.4.4rc01-06 14 10404 14.so.14.4[.0] * * Henceforth the source version will match the shared-library major * and minor numbers; the shared-library major version number will be @@ -201,7 +156,7 @@ * to the source version x.y.z (leading zeros in y and z). Beta versions * were given the previous public release number plus a letter, until * version 1.0.6j; from then on they were given the upcoming public - * release number plus "betaNN" or "rcNN". + * release number plus "betaNN" or "rcN". * * Binary incompatibility exists only when applications make direct access * to the info_ptr or png_ptr members through png.h, and the compiled @@ -221,8 +176,10 @@ * If you modify libpng you may insert additional notices immediately following * this sentence. * - * libpng versions 1.2.6, August 15, 2004, through 1.2.29, May 8, 2008, are - * Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are + * This code is released under the libpng license. + * + * libpng versions 1.2.6, August 15, 2004, through 1.4.4, September 23, 2010, are + * Copyright (c) 2004, 2006-2010 Glenn Randers-Pehrson, and are * distributed according to the same disclaimer and license as libpng-1.2.5 * with the following individual added to the list of Contributing Authors: * @@ -310,7 +267,7 @@ * A "png_get_copyright" function is available, for convenient use in "about" * boxes and the like: * - * printf("%s",png_get_copyright(NULL)); + * printf("%s",png_get_copyright(NULL)); * * Also, the PNG logo (in PNG format, of course) is supplied in the * files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). @@ -333,13 +290,13 @@ * Y2K compliance in libpng: * ========================= * - * May 8, 2008 + * September 23, 2010 * * Since the PNG Development group is an ad-hoc body, we can't make * an official declaration. * * This is your unofficial assurance that libpng from version 0.71 and - * upward through 1.2.29 are Y2K compliant. It is my belief that earlier + * upward through 1.4.4 are Y2K compliant. It is my belief that earlier * versions were also Y2K compliant. * * Libpng only has three year fields. One is a 2-byte unsigned integer @@ -395,19 +352,20 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.2.29" +#define PNG_LIBPNG_VER_STRING "1.4.4" #define PNG_HEADER_VERSION_STRING \ - " libpng version 1.2.29 - May 8, 2008\n" + " libpng version 1.4.4 - September 23, 2010\n" -#define PNG_LIBPNG_VER_SONUM 0 -#define PNG_LIBPNG_VER_DLLNUM 13 +#define PNG_LIBPNG_VER_SONUM 14 +#define PNG_LIBPNG_VER_DLLNUM 14 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ #define PNG_LIBPNG_VER_MAJOR 1 -#define PNG_LIBPNG_VER_MINOR 2 -#define PNG_LIBPNG_VER_RELEASE 29 +#define PNG_LIBPNG_VER_MINOR 4 +#define PNG_LIBPNG_VER_RELEASE 4 /* This should match the numeric part of the final component of - * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ + * PNG_LIBPNG_VER_STRING, omitting any leading zero: + */ #define PNG_LIBPNG_VER_BUILD 0 @@ -417,7 +375,7 @@ #define PNG_LIBPNG_BUILD_RC 3 #define PNG_LIBPNG_BUILD_STABLE 4 #define PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7 - + /* Release-Specific Flags */ #define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with PNG_LIBPNG_BUILD_STABLE only */ @@ -426,41 +384,43 @@ #define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with PNG_LIBPNG_BUILD_PRIVATE */ -#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE +#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_BETA /* Careful here. At one time, Guy wanted to use 082, but that would be octal. * We must not include leading zeros. * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only * version 1.0.0 was mis-numbered 100 instead of 10000). From - * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */ -#define PNG_LIBPNG_VER 10229 /* 1.2.29 */ + * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release + */ +#define PNG_LIBPNG_VER 10404 /* 1.4.4 */ #ifndef PNG_VERSION_INFO_ONLY -/* include the compression library's header */ +/* Include the compression library's header */ #include "zlib.h" #endif -/* include all user configurable info, including optional assembler routines */ +/* Include all user configurable info, including optional assembler routines */ #include "pngconf.h" /* - * Added at libpng-1.2.8 */ -/* Ref MSDN: Private as priority over Special + * Added at libpng-1.2.8 + * + * Ref MSDN: Private as priority over Special * VS_FF_PRIVATEBUILD File *was not* built using standard release * procedures. If this value is given, the StringFileInfo block must - * contain a PrivateBuild string. + * contain a PrivateBuild string. * * VS_FF_SPECIALBUILD File *was* built by the original company using * standard release procedures but is a variation of the standard * file of the same version number. If this value is given, the - * StringFileInfo block must contain a SpecialBuild string. + * StringFileInfo block must contain a SpecialBuild string. */ -#if defined(PNG_USER_PRIVATEBUILD) +#ifdef PNG_USER_PRIVATEBUILD # define PNG_LIBPNG_BUILD_TYPE \ (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_PRIVATE) #else -# if defined(PNG_LIBPNG_SPECIALBUILD) +# ifdef PNG_LIBPNG_SPECIALBUILD # define PNG_LIBPNG_BUILD_TYPE \ (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_SPECIAL) # else @@ -481,65 +441,12 @@ extern "C" { * which applications aren't expected to use directly. */ -#ifndef PNG_NO_TYPECAST_NULL -#define int_p_NULL (int *)NULL -#define png_bytep_NULL (png_bytep)NULL -#define png_bytepp_NULL (png_bytepp)NULL -#define png_doublep_NULL (png_doublep)NULL -#define png_error_ptr_NULL (png_error_ptr)NULL -#define png_flush_ptr_NULL (png_flush_ptr)NULL -#define png_free_ptr_NULL (png_free_ptr)NULL -#define png_infopp_NULL (png_infopp)NULL -#define png_malloc_ptr_NULL (png_malloc_ptr)NULL -#define png_read_status_ptr_NULL (png_read_status_ptr)NULL -#define png_rw_ptr_NULL (png_rw_ptr)NULL -#define png_structp_NULL (png_structp)NULL -#define png_uint_16p_NULL (png_uint_16p)NULL -#define png_voidp_NULL (png_voidp)NULL -#define png_write_status_ptr_NULL (png_write_status_ptr)NULL -#else -#define int_p_NULL NULL -#define png_bytep_NULL NULL -#define png_bytepp_NULL NULL -#define png_doublep_NULL NULL -#define png_error_ptr_NULL NULL -#define png_flush_ptr_NULL NULL -#define png_free_ptr_NULL NULL -#define png_infopp_NULL NULL -#define png_malloc_ptr_NULL NULL -#define png_read_status_ptr_NULL NULL -#define png_rw_ptr_NULL NULL -#define png_structp_NULL NULL -#define png_uint_16p_NULL NULL -#define png_voidp_NULL NULL -#define png_write_status_ptr_NULL NULL -#endif - -/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */ +/* Variables declared in png.c - only it needs to define PNG_NO_EXTERN */ #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) /* Version information for C files, stored in png.c. This had better match * the version above. */ -#ifdef PNG_USE_GLOBAL_ARRAYS -PNG_EXPORT_VAR (PNG_CONST char) png_libpng_ver[18]; - /* need room for 99.99.99beta99z */ -#else #define png_libpng_ver png_get_header_ver(NULL) -#endif - -#ifdef PNG_USE_GLOBAL_ARRAYS -/* This was removed in version 1.0.5c */ -/* Structures to facilitate easy interlacing. See png.c for more details */ -PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_start[7]; -PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_inc[7]; -PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_ystart[7]; -PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_yinc[7]; -PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_mask[7]; -PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_dsp_mask[7]; -/* This isn't currently used. If you need it, see png.c for more details. -PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_height[7]; -*/ -#endif #endif /* PNG_NO_EXTERN */ @@ -668,16 +575,16 @@ typedef struct png_time_struct typedef png_time FAR * png_timep; typedef png_time FAR * FAR * png_timepp; -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) +#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \ + defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) /* png_unknown_chunk is a structure to hold queued chunks for which there is * no specific support. The idea is that we can use this to queue * up private chunks for output even though the library doesn't actually * know about their semantics. */ -#define PNG_CHUNK_NAME_LENGTH 5 typedef struct png_unknown_chunk_t { - png_byte name[PNG_CHUNK_NAME_LENGTH]; + png_byte name[5]; png_byte *data; png_size_t size; @@ -731,25 +638,38 @@ typedef png_unknown_chunk FAR * FAR * png_unknown_chunkpp; typedef struct png_info_struct { /* the following are necessary for every PNG file */ - png_uint_32 width; /* width of image in pixels (from IHDR) */ - png_uint_32 height; /* height of image in pixels (from IHDR) */ - png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */ - png_uint_32 rowbytes; /* bytes needed to hold an untransformed row */ - png_colorp palette; /* array of color values (valid & PNG_INFO_PLTE) */ - png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */ - png_uint_16 num_trans; /* number of transparent palette color (tRNS) */ - png_byte bit_depth; /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */ - png_byte color_type; /* see PNG_COLOR_TYPE_ below (from IHDR) */ + png_uint_32 width PNG_DEPSTRUCT; /* width of image in pixels (from IHDR) */ + png_uint_32 height PNG_DEPSTRUCT; /* height of image in pixels (from IHDR) */ + png_uint_32 valid PNG_DEPSTRUCT; /* valid chunk data (see PNG_INFO_ + below) */ + png_size_t rowbytes PNG_DEPSTRUCT; /* bytes needed to hold an untransformed + row */ + png_colorp palette PNG_DEPSTRUCT; /* array of color values + (valid & PNG_INFO_PLTE) */ + png_uint_16 num_palette PNG_DEPSTRUCT; /* number of color entries in + "palette" (PLTE) */ + png_uint_16 num_trans PNG_DEPSTRUCT; /* number of transparent palette + color (tRNS) */ + png_byte bit_depth PNG_DEPSTRUCT; /* 1, 2, 4, 8, or 16 bits/channel + (from IHDR) */ + png_byte color_type PNG_DEPSTRUCT; /* see PNG_COLOR_TYPE_ below + (from IHDR) */ /* The following three should have been named *_method not *_type */ - png_byte compression_type; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */ - png_byte filter_type; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */ - png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ + png_byte compression_type PNG_DEPSTRUCT; /* must be + PNG_COMPRESSION_TYPE_BASE (IHDR) */ + png_byte filter_type PNG_DEPSTRUCT; /* must be PNG_FILTER_TYPE_BASE + (from IHDR) */ + png_byte interlace_type PNG_DEPSTRUCT; /* One of PNG_INTERLACE_NONE, + PNG_INTERLACE_ADAM7 */ /* The following is informational only on read, and not used on writes. */ - png_byte channels; /* number of data channels per pixel (1, 2, 3, 4) */ - png_byte pixel_depth; /* number of bits per pixel */ - png_byte spare_byte; /* to align the data, and for future use */ - png_byte signature[8]; /* magic bytes read by libpng from start of file */ + png_byte channels PNG_DEPSTRUCT; /* number of data channels per + pixel (1, 2, 3, 4) */ + png_byte pixel_depth PNG_DEPSTRUCT; /* number of bits per pixel */ + png_byte spare_byte PNG_DEPSTRUCT; /* to align the data, and for + future use */ + png_byte signature[8] PNG_DEPSTRUCT; /* magic bytes read by libpng + from start of file */ /* The rest of the data is optional. If you are reading, check the * valid field to see if the information in these are valid. If you @@ -762,16 +682,18 @@ typedef struct png_info_struct * on which the image was created, normally in the range [1.0, 2.5]. * Data is valid if (valid & PNG_INFO_gAMA) is non-zero. */ - float gamma; /* gamma value of image, if (valid & PNG_INFO_gAMA) */ + float gamma PNG_DEPSTRUCT; /* gamma value of image, + if (valid & PNG_INFO_gAMA) */ #endif -#if defined(PNG_sRGB_SUPPORTED) +#ifdef PNG_sRGB_SUPPORTED /* GR-P, 0.96a */ /* Data valid if (valid & PNG_INFO_sRGB) non-zero. */ - png_byte srgb_intent; /* sRGB rendering intent [0, 1, 2, or 3] */ + png_byte srgb_intent PNG_DEPSTRUCT; /* sRGB rendering intent + [0, 1, 2, or 3] */ #endif -#if defined(PNG_TEXT_SUPPORTED) +#ifdef PNG_TEXT_SUPPORTED /* The tEXt, and zTXt chunks contain human-readable textual data in * uncompressed, compressed, and optionally compressed forms, respectively. * The data in "text" is an array of pointers to uncompressed, @@ -780,26 +702,26 @@ typedef struct png_info_struct * unique, and the text string may be empty. Any number of text chunks may * be in an image. */ - int num_text; /* number of comments read/to write */ - int max_text; /* current size of text array */ - png_textp text; /* array of comments read/to write */ + int num_text PNG_DEPSTRUCT; /* number of comments read/to write */ + int max_text PNG_DEPSTRUCT; /* current size of text array */ + png_textp text PNG_DEPSTRUCT; /* array of comments read/to write */ #endif /* PNG_TEXT_SUPPORTED */ -#if defined(PNG_tIME_SUPPORTED) +#ifdef PNG_tIME_SUPPORTED /* The tIME chunk holds the last time the displayed image data was * modified. See the png_time struct for the contents of this struct. */ - png_time mod_time; + png_time mod_time PNG_DEPSTRUCT; #endif -#if defined(PNG_sBIT_SUPPORTED) +#ifdef PNG_sBIT_SUPPORTED /* The sBIT chunk specifies the number of significant high-order bits * in the pixel data. Values are in the range [1, bit_depth], and are * only specified for the channels in the pixel data. The contents of * the low-order bits is not specified. Data is valid if * (valid & PNG_INFO_sBIT) is non-zero. */ - png_color_8 sig_bit; /* significant bits in color channels */ + png_color_8 sig_bit PNG_DEPSTRUCT; /* significant bits in color channels */ #endif #if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_EXPAND_SUPPORTED) || \ @@ -813,8 +735,10 @@ defined(PNG_READ_BACKGROUND_SUPPORTED) * single color specified that should be treated as fully transparent. * Data is valid if (valid & PNG_INFO_tRNS) is non-zero. */ - png_bytep trans; /* transparent values for paletted image */ - png_color_16 trans_values; /* transparent color for non-palette image */ + png_bytep trans_alpha PNG_DEPSTRUCT; /* alpha values for paletted + image */ + png_color_16 trans_color PNG_DEPSTRUCT; /* transparent color for + non-palette image */ #endif #if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) @@ -824,38 +748,39 @@ defined(PNG_READ_BACKGROUND_SUPPORTED) * in "background" are normally in the same color space/depth as the * pixel data. Data is valid if (valid & PNG_INFO_bKGD) is non-zero. */ - png_color_16 background; + png_color_16 background PNG_DEPSTRUCT; #endif -#if defined(PNG_oFFs_SUPPORTED) +#ifdef PNG_oFFs_SUPPORTED /* The oFFs chunk gives the offset in "offset_unit_type" units rightwards * and downwards from the top-left corner of the display, page, or other * application-specific co-ordinate space. See the PNG_OFFSET_ defines * below for the unit types. Valid if (valid & PNG_INFO_oFFs) non-zero. */ - png_int_32 x_offset; /* x offset on page */ - png_int_32 y_offset; /* y offset on page */ - png_byte offset_unit_type; /* offset units type */ + png_int_32 x_offset PNG_DEPSTRUCT; /* x offset on page */ + png_int_32 y_offset PNG_DEPSTRUCT; /* y offset on page */ + png_byte offset_unit_type PNG_DEPSTRUCT; /* offset units type */ #endif -#if defined(PNG_pHYs_SUPPORTED) +#ifdef PNG_pHYs_SUPPORTED /* The pHYs chunk gives the physical pixel density of the image for * display or printing in "phys_unit_type" units (see PNG_RESOLUTION_ * defines below). Data is valid if (valid & PNG_INFO_pHYs) is non-zero. */ - png_uint_32 x_pixels_per_unit; /* horizontal pixel density */ - png_uint_32 y_pixels_per_unit; /* vertical pixel density */ - png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */ + png_uint_32 x_pixels_per_unit PNG_DEPSTRUCT; /* horizontal pixel density */ + png_uint_32 y_pixels_per_unit PNG_DEPSTRUCT; /* vertical pixel density */ + png_byte phys_unit_type PNG_DEPSTRUCT; /* resolution type (see + PNG_RESOLUTION_ below) */ #endif -#if defined(PNG_hIST_SUPPORTED) +#ifdef PNG_hIST_SUPPORTED /* The hIST chunk contains the relative frequency or importance of the * various palette entries, so that a viewer can intelligently select a * reduced-color palette, if required. Data is an array of "num_palette" * values in the range [0,65535]. Data valid if (valid & PNG_INFO_hIST) * is non-zero. */ - png_uint_16p hist; + png_uint_16p hist PNG_DEPSTRUCT; #endif #ifdef PNG_cHRM_SUPPORTED @@ -866,18 +791,18 @@ defined(PNG_READ_BACKGROUND_SUPPORTED) * [0.0, 0.8]. Data valid if (valid & PNG_INFO_cHRM) non-zero. */ #ifdef PNG_FLOATING_POINT_SUPPORTED - float x_white; - float y_white; - float x_red; - float y_red; - float x_green; - float y_green; - float x_blue; - float y_blue; + float x_white PNG_DEPSTRUCT; + float y_white PNG_DEPSTRUCT; + float x_red PNG_DEPSTRUCT; + float y_red PNG_DEPSTRUCT; + float x_green PNG_DEPSTRUCT; + float y_green PNG_DEPSTRUCT; + float x_blue PNG_DEPSTRUCT; + float y_blue PNG_DEPSTRUCT; #endif #endif -#if defined(PNG_pCAL_SUPPORTED) +#ifdef PNG_pCAL_SUPPORTED /* The pCAL chunk describes a transformation between the stored pixel * values and original physical data values used to create the image. * The integer range [0, 2^bit_depth - 1] maps to the floating-point @@ -889,42 +814,47 @@ defined(PNG_READ_BACKGROUND_SUPPORTED) * implemented, and for a description of the ASCII parameter strings. * Data values are valid if (valid & PNG_INFO_pCAL) non-zero. */ - png_charp pcal_purpose; /* pCAL chunk description string */ - png_int_32 pcal_X0; /* minimum value */ - png_int_32 pcal_X1; /* maximum value */ - png_charp pcal_units; /* Latin-1 string giving physical units */ - png_charpp pcal_params; /* ASCII strings containing parameter values */ - png_byte pcal_type; /* equation type (see PNG_EQUATION_ below) */ - png_byte pcal_nparams; /* number of parameters given in pcal_params */ + png_charp pcal_purpose PNG_DEPSTRUCT; /* pCAL chunk description string */ + png_int_32 pcal_X0 PNG_DEPSTRUCT; /* minimum value */ + png_int_32 pcal_X1 PNG_DEPSTRUCT; /* maximum value */ + png_charp pcal_units PNG_DEPSTRUCT; /* Latin-1 string giving physical + units */ + png_charpp pcal_params PNG_DEPSTRUCT; /* ASCII strings containing + parameter values */ + png_byte pcal_type PNG_DEPSTRUCT; /* equation type + (see PNG_EQUATION_ below) */ + png_byte pcal_nparams PNG_DEPSTRUCT; /* number of parameters given + in pcal_params */ #endif /* New members added in libpng-1.0.6 */ -#ifdef PNG_FREE_ME_SUPPORTED - png_uint_32 free_me; /* flags items libpng is responsible for freeing */ + png_uint_32 free_me PNG_DEPSTRUCT; /* flags items libpng is + responsible for freeing */ + +#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \ + defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) + /* Storage for unknown chunks that the library doesn't recognize. */ + png_unknown_chunkp unknown_chunks PNG_DEPSTRUCT; + png_size_t unknown_chunks_num PNG_DEPSTRUCT; #endif -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - /* storage for unknown chunks that the library doesn't recognize. */ - png_unknown_chunkp unknown_chunks; - png_size_t unknown_chunks_num; -#endif - -#if defined(PNG_iCCP_SUPPORTED) +#ifdef PNG_iCCP_SUPPORTED /* iCCP chunk data. */ - png_charp iccp_name; /* profile name */ - png_charp iccp_profile; /* International Color Consortium profile data */ + png_charp iccp_name PNG_DEPSTRUCT; /* profile name */ + png_charp iccp_profile PNG_DEPSTRUCT; /* International Color Consortium + profile data */ /* Note to maintainer: should be png_bytep */ - png_uint_32 iccp_proflen; /* ICC profile data length */ - png_byte iccp_compression; /* Always zero */ + png_uint_32 iccp_proflen PNG_DEPSTRUCT; /* ICC profile data length */ + png_byte iccp_compression PNG_DEPSTRUCT; /* Always zero */ #endif -#if defined(PNG_sPLT_SUPPORTED) - /* data on sPLT chunks (there may be more than one). */ - png_sPLT_tp splt_palettes; - png_uint_32 splt_palettes_num; +#ifdef PNG_sPLT_SUPPORTED + /* Data on sPLT chunks (there may be more than one). */ + png_sPLT_tp splt_palettes PNG_DEPSTRUCT; + png_uint_32 splt_palettes_num PNG_DEPSTRUCT; #endif -#if defined(PNG_sCAL_SUPPORTED) +#ifdef PNG_sCAL_SUPPORTED /* The sCAL chunk describes the actual physical dimensions of the * subject matter of the graphic. The chunk contains a unit specification * a byte value, and two ASCII strings representing floating-point @@ -932,36 +862,38 @@ defined(PNG_READ_BACKGROUND_SUPPORTED) * in the image. This external representation is converted to double * here. Data values are valid if (valid & PNG_INFO_sCAL) is non-zero. */ - png_byte scal_unit; /* unit of physical scale */ + png_byte scal_unit PNG_DEPSTRUCT; /* unit of physical scale */ #ifdef PNG_FLOATING_POINT_SUPPORTED - double scal_pixel_width; /* width of one pixel */ - double scal_pixel_height; /* height of one pixel */ + double scal_pixel_width PNG_DEPSTRUCT; /* width of one pixel */ + double scal_pixel_height PNG_DEPSTRUCT; /* height of one pixel */ #endif #ifdef PNG_FIXED_POINT_SUPPORTED - png_charp scal_s_width; /* string containing height */ - png_charp scal_s_height; /* string containing width */ + png_charp scal_s_width PNG_DEPSTRUCT; /* string containing height */ + png_charp scal_s_height PNG_DEPSTRUCT; /* string containing width */ #endif #endif -#if defined(PNG_INFO_IMAGE_SUPPORTED) - /* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS) non-zero */ +#ifdef PNG_INFO_IMAGE_SUPPORTED + /* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS) + non-zero */ /* Data valid if (valid & PNG_INFO_IDAT) non-zero */ - png_bytepp row_pointers; /* the image bits */ + png_bytepp row_pointers PNG_DEPSTRUCT; /* the image bits */ #endif #if defined(PNG_FIXED_POINT_SUPPORTED) && defined(PNG_gAMA_SUPPORTED) - png_fixed_point int_gamma; /* gamma of image, if (valid & PNG_INFO_gAMA) */ + png_fixed_point int_gamma PNG_DEPSTRUCT; /* gamma of image, + if (valid & PNG_INFO_gAMA) */ #endif #if defined(PNG_cHRM_SUPPORTED) && defined(PNG_FIXED_POINT_SUPPORTED) - png_fixed_point int_x_white; - png_fixed_point int_y_white; - png_fixed_point int_x_red; - png_fixed_point int_y_red; - png_fixed_point int_x_green; - png_fixed_point int_y_green; - png_fixed_point int_x_blue; - png_fixed_point int_y_blue; + png_fixed_point int_x_white PNG_DEPSTRUCT; + png_fixed_point int_y_white PNG_DEPSTRUCT; + png_fixed_point int_x_red PNG_DEPSTRUCT; + png_fixed_point int_y_red PNG_DEPSTRUCT; + png_fixed_point int_x_green PNG_DEPSTRUCT; + png_fixed_point int_y_green PNG_DEPSTRUCT; + png_fixed_point int_x_blue PNG_DEPSTRUCT; + png_fixed_point int_y_blue PNG_DEPSTRUCT; #endif } png_info; @@ -973,10 +905,6 @@ typedef png_info FAR * FAR * png_infopp; #define PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL) #define PNG_UINT_32_MAX ((png_uint_32)(-1)) #define PNG_SIZE_MAX ((png_size_t)(-1)) -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* PNG_MAX_UINT is deprecated; use PNG_UINT_31_MAX instead. */ -#define PNG_MAX_UINT PNG_UINT_31_MAX -#endif /* These describe the color_type field in png_info. */ /* color type masks */ @@ -1073,7 +1001,7 @@ typedef png_info FAR * FAR * png_infopp; typedef struct png_row_info_struct { png_uint_32 width; /* width of row */ - png_uint_32 rowbytes; /* number of bytes in row */ + png_size_t rowbytes; /* number of bytes in row */ png_byte color_type; /* color type of row */ png_byte bit_depth; /* bit depth of row */ png_byte channels; /* number of channels (1, 2, 3, or 4) */ @@ -1101,25 +1029,33 @@ typedef void (PNGAPI *png_write_status_ptr) PNGARG((png_structp, png_uint_32, int)); #ifdef PNG_PROGRESSIVE_READ_SUPPORTED -typedef void (PNGAPI *png_progressive_info_ptr) PNGARG((png_structp, png_infop)); +typedef void (PNGAPI *png_progressive_info_ptr) PNGARG((png_structp, + png_infop)); typedef void (PNGAPI *png_progressive_end_ptr) PNGARG((png_structp, png_infop)); typedef void (PNGAPI *png_progressive_row_ptr) PNGARG((png_structp, png_bytep, png_uint_32, int)); #endif #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) + defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) typedef void (PNGAPI *png_user_transform_ptr) PNGARG((png_structp, png_row_infop, png_bytep)); #endif -#if defined(PNG_USER_CHUNKS_SUPPORTED) -typedef int (PNGAPI *png_user_chunk_ptr) PNGARG((png_structp, png_unknown_chunkp)); +#ifdef PNG_USER_CHUNKS_SUPPORTED +typedef int (PNGAPI *png_user_chunk_ptr) PNGARG((png_structp, + png_unknown_chunkp)); #endif -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) +#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp)); #endif +#ifdef PNG_SETJMP_SUPPORTED +/* This must match the function definition in , and the + * application must include this before png.h to obtain the definition + * of jmp_buf. + */ +typedef void (PNGAPI *png_longjmp_ptr) PNGARG((jmp_buf, int)); +#endif /* Transform masks for the high-level interface */ #define PNG_TRANSFORM_IDENTITY 0x0000 /* read and write */ @@ -1134,14 +1070,19 @@ typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp)); #define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */ #define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */ #define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */ -#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* WRITE only */ +#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* write only */ +/* Added to libpng-1.2.34 */ +#define PNG_TRANSFORM_STRIP_FILLER_BEFORE PNG_TRANSFORM_STRIP_FILLER +#define PNG_TRANSFORM_STRIP_FILLER_AFTER 0x1000 /* write only */ +/* Added to libpng-1.4.0 */ +#define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */ /* Flags for MNG supported features */ #define PNG_FLAG_MNG_EMPTY_PLTE 0x01 #define PNG_FLAG_MNG_FILTER_64 0x04 #define PNG_ALL_MNG_FEATURES 0x05 -typedef png_voidp (*png_malloc_ptr) PNGARG((png_structp, png_size_t)); +typedef png_voidp (*png_malloc_ptr) PNGARG((png_structp, png_alloc_size_t)); typedef void (*png_free_ptr) PNGARG((png_structp, png_voidp)); /* The structure that holds the information to read and write PNG files. @@ -1154,303 +1095,388 @@ typedef void (*png_free_ptr) PNGARG((png_structp, png_voidp)); struct png_struct_def { #ifdef PNG_SETJMP_SUPPORTED - jmp_buf jmpbuf; /* used in png_error */ + jmp_buf jmpbuf PNG_DEPSTRUCT; /* used in png_error */ + png_longjmp_ptr longjmp_fn PNG_DEPSTRUCT;/* setjmp non-local goto + function. */ #endif - png_error_ptr error_fn; /* function for printing errors and aborting */ - png_error_ptr warning_fn; /* function for printing warnings */ - png_voidp error_ptr; /* user supplied struct for error functions */ - png_rw_ptr write_data_fn; /* function for writing output data */ - png_rw_ptr read_data_fn; /* function for reading input data */ - png_voidp io_ptr; /* ptr to application struct for I/O functions */ + png_error_ptr error_fn PNG_DEPSTRUCT; /* function for printing + errors and aborting */ + png_error_ptr warning_fn PNG_DEPSTRUCT; /* function for printing + warnings */ + png_voidp error_ptr PNG_DEPSTRUCT; /* user supplied struct for + error functions */ + png_rw_ptr write_data_fn PNG_DEPSTRUCT; /* function for writing + output data */ + png_rw_ptr read_data_fn PNG_DEPSTRUCT; /* function for reading + input data */ + png_voidp io_ptr PNG_DEPSTRUCT; /* ptr to application struct + for I/O functions */ -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - png_user_transform_ptr read_user_transform_fn; /* user read transform */ +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED + png_user_transform_ptr read_user_transform_fn PNG_DEPSTRUCT; /* user read + transform */ #endif -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) - png_user_transform_ptr write_user_transform_fn; /* user write transform */ +#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED + png_user_transform_ptr write_user_transform_fn PNG_DEPSTRUCT; /* user write + transform */ #endif /* These were added in libpng-1.0.2 */ -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) +#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) - png_voidp user_transform_ptr; /* user supplied struct for user transform */ - png_byte user_transform_depth; /* bit depth of user transformed pixels */ - png_byte user_transform_channels; /* channels in user transformed pixels */ + png_voidp user_transform_ptr PNG_DEPSTRUCT; /* user supplied struct + for user transform */ + png_byte user_transform_depth PNG_DEPSTRUCT; /* bit depth of user + transformed pixels */ + png_byte user_transform_channels PNG_DEPSTRUCT; /* channels in user + transformed pixels */ #endif #endif - png_uint_32 mode; /* tells us where we are in the PNG file */ - png_uint_32 flags; /* flags indicating various things to libpng */ - png_uint_32 transformations; /* which transformations to perform */ + png_uint_32 mode PNG_DEPSTRUCT; /* tells us where we are in + the PNG file */ + png_uint_32 flags PNG_DEPSTRUCT; /* flags indicating various + things to libpng */ + png_uint_32 transformations PNG_DEPSTRUCT; /* which transformations + to perform */ - z_stream zstream; /* pointer to decompression structure (below) */ - png_bytep zbuf; /* buffer for zlib */ - png_size_t zbuf_size; /* size of zbuf */ - int zlib_level; /* holds zlib compression level */ - int zlib_method; /* holds zlib compression method */ - int zlib_window_bits; /* holds zlib compression window bits */ - int zlib_mem_level; /* holds zlib compression memory level */ - int zlib_strategy; /* holds zlib compression strategy */ + z_stream zstream PNG_DEPSTRUCT; /* pointer to decompression + structure (below) */ + png_bytep zbuf PNG_DEPSTRUCT; /* buffer for zlib */ + png_size_t zbuf_size PNG_DEPSTRUCT; /* size of zbuf */ + int zlib_level PNG_DEPSTRUCT; /* holds zlib compression level */ + int zlib_method PNG_DEPSTRUCT; /* holds zlib compression method */ + int zlib_window_bits PNG_DEPSTRUCT; /* holds zlib compression window + bits */ + int zlib_mem_level PNG_DEPSTRUCT; /* holds zlib compression memory + level */ + int zlib_strategy PNG_DEPSTRUCT; /* holds zlib compression + strategy */ - png_uint_32 width; /* width of image in pixels */ - png_uint_32 height; /* height of image in pixels */ - png_uint_32 num_rows; /* number of rows in current pass */ - png_uint_32 usr_width; /* width of row at start of write */ - png_uint_32 rowbytes; /* size of row in bytes */ - png_uint_32 irowbytes; /* size of current interlaced row in bytes */ - png_uint_32 iwidth; /* width of current interlaced row in pixels */ - png_uint_32 row_number; /* current row in interlace pass */ - png_bytep prev_row; /* buffer to save previous (unfiltered) row */ - png_bytep row_buf; /* buffer to save current (unfiltered) row */ -#ifndef PNG_NO_WRITE_FILTERING - png_bytep sub_row; /* buffer to save "sub" row when filtering */ - png_bytep up_row; /* buffer to save "up" row when filtering */ - png_bytep avg_row; /* buffer to save "avg" row when filtering */ - png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */ + png_uint_32 width PNG_DEPSTRUCT; /* width of image in pixels */ + png_uint_32 height PNG_DEPSTRUCT; /* height of image in pixels */ + png_uint_32 num_rows PNG_DEPSTRUCT; /* number of rows in current pass */ + png_uint_32 usr_width PNG_DEPSTRUCT; /* width of row at start of write */ + png_size_t rowbytes PNG_DEPSTRUCT; /* size of row in bytes */ +#if 0 /* Replaced with the following in libpng-1.4.1 */ + png_size_t irowbytes PNG_DEPSTRUCT; #endif - png_row_info row_info; /* used for transformation routines */ +/* Added in libpng-1.4.1 */ +#ifdef PNG_USER_LIMITS_SUPPORTED + /* Total memory that a zTXt, sPLT, iTXt, iCCP, or unknown chunk + * can occupy when decompressed. 0 means unlimited. + * We will change the typedef from png_size_t to png_alloc_size_t + * in libpng-1.6.0 + */ + png_alloc_size_t user_chunk_malloc_max PNG_DEPSTRUCT; +#endif + png_uint_32 iwidth PNG_DEPSTRUCT; /* width of current interlaced + row in pixels */ + png_uint_32 row_number PNG_DEPSTRUCT; /* current row in interlace pass */ + png_bytep prev_row PNG_DEPSTRUCT; /* buffer to save previous + (unfiltered) row */ + png_bytep row_buf PNG_DEPSTRUCT; /* buffer to save current + (unfiltered) row */ + png_bytep sub_row PNG_DEPSTRUCT; /* buffer to save "sub" row + when filtering */ + png_bytep up_row PNG_DEPSTRUCT; /* buffer to save "up" row + when filtering */ + png_bytep avg_row PNG_DEPSTRUCT; /* buffer to save "avg" row + when filtering */ + png_bytep paeth_row PNG_DEPSTRUCT; /* buffer to save "Paeth" row + when filtering */ + png_row_info row_info PNG_DEPSTRUCT; /* used for transformation + routines */ - png_uint_32 idat_size; /* current IDAT size for read */ - png_uint_32 crc; /* current chunk CRC value */ - png_colorp palette; /* palette from the input file */ - png_uint_16 num_palette; /* number of color entries in palette */ - png_uint_16 num_trans; /* number of transparency values */ - png_byte chunk_name[5]; /* null-terminated name of current chunk */ - png_byte compression; /* file compression type (always 0) */ - png_byte filter; /* file filter type (always 0) */ - png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ - png_byte pass; /* current interlace pass (0 - 6) */ - png_byte do_filter; /* row filter flags (see PNG_FILTER_ below ) */ - png_byte color_type; /* color type of file */ - png_byte bit_depth; /* bit depth of file */ - png_byte usr_bit_depth; /* bit depth of users row */ - png_byte pixel_depth; /* number of bits per pixel */ - png_byte channels; /* number of channels in file */ - png_byte usr_channels; /* channels at start of write */ - png_byte sig_bytes; /* magic bytes read/written from start of file */ + png_uint_32 idat_size PNG_DEPSTRUCT; /* current IDAT size for read */ + png_uint_32 crc PNG_DEPSTRUCT; /* current chunk CRC value */ + png_colorp palette PNG_DEPSTRUCT; /* palette from the input file */ + png_uint_16 num_palette PNG_DEPSTRUCT; /* number of color entries in + palette */ + png_uint_16 num_trans PNG_DEPSTRUCT; /* number of transparency values */ + png_byte chunk_name[5] PNG_DEPSTRUCT; /* null-terminated name of current + chunk */ + png_byte compression PNG_DEPSTRUCT; /* file compression type + (always 0) */ + png_byte filter PNG_DEPSTRUCT; /* file filter type (always 0) */ + png_byte interlaced PNG_DEPSTRUCT; /* PNG_INTERLACE_NONE, + PNG_INTERLACE_ADAM7 */ + png_byte pass PNG_DEPSTRUCT; /* current interlace pass (0 - 6) */ + png_byte do_filter PNG_DEPSTRUCT; /* row filter flags (see + PNG_FILTER_ below ) */ + png_byte color_type PNG_DEPSTRUCT; /* color type of file */ + png_byte bit_depth PNG_DEPSTRUCT; /* bit depth of file */ + png_byte usr_bit_depth PNG_DEPSTRUCT; /* bit depth of users row */ + png_byte pixel_depth PNG_DEPSTRUCT; /* number of bits per pixel */ + png_byte channels PNG_DEPSTRUCT; /* number of channels in file */ + png_byte usr_channels PNG_DEPSTRUCT; /* channels at start of write */ + png_byte sig_bytes PNG_DEPSTRUCT; /* magic bytes read/written from + start of file */ #if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -#ifdef PNG_LEGACY_SUPPORTED - png_byte filler; /* filler byte for pixel expansion */ -#else - png_uint_16 filler; /* filler bytes for pixel expansion */ -#endif + png_uint_16 filler PNG_DEPSTRUCT; /* filler bytes for pixel + expansion */ #endif -#if defined(PNG_bKGD_SUPPORTED) - png_byte background_gamma_type; +#ifdef PNG_bKGD_SUPPORTED + png_byte background_gamma_type PNG_DEPSTRUCT; # ifdef PNG_FLOATING_POINT_SUPPORTED - float background_gamma; + float background_gamma PNG_DEPSTRUCT; # endif - png_color_16 background; /* background color in screen gamma space */ -#if defined(PNG_READ_GAMMA_SUPPORTED) - png_color_16 background_1; /* background normalized to gamma 1.0 */ + png_color_16 background PNG_DEPSTRUCT; /* background color in + screen gamma space */ +#ifdef PNG_READ_GAMMA_SUPPORTED + png_color_16 background_1 PNG_DEPSTRUCT; /* background normalized + to gamma 1.0 */ #endif #endif /* PNG_bKGD_SUPPORTED */ -#if defined(PNG_WRITE_FLUSH_SUPPORTED) - png_flush_ptr output_flush_fn;/* Function for flushing output */ - png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */ - png_uint_32 flush_rows; /* number of rows written since last flush */ +#ifdef PNG_WRITE_FLUSH_SUPPORTED + png_flush_ptr output_flush_fn PNG_DEPSTRUCT; /* Function for flushing + output */ + png_uint_32 flush_dist PNG_DEPSTRUCT; /* how many rows apart to flush, + 0 - no flush */ + png_uint_32 flush_rows PNG_DEPSTRUCT; /* number of rows written since + last flush */ #endif #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - int gamma_shift; /* number of "insignificant" bits 16-bit gamma */ + int gamma_shift PNG_DEPSTRUCT; /* number of "insignificant" bits + 16-bit gamma */ #ifdef PNG_FLOATING_POINT_SUPPORTED - float gamma; /* file gamma value */ - float screen_gamma; /* screen gamma value (display_exponent) */ + float gamma PNG_DEPSTRUCT; /* file gamma value */ + float screen_gamma PNG_DEPSTRUCT; /* screen gamma value + (display_exponent) */ #endif #endif #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_bytep gamma_table; /* gamma table for 8-bit depth files */ - png_bytep gamma_from_1; /* converts from 1.0 to screen */ - png_bytep gamma_to_1; /* converts from file to 1.0 */ - png_uint_16pp gamma_16_table; /* gamma table for 16-bit depth files */ - png_uint_16pp gamma_16_from_1; /* converts from 1.0 to screen */ - png_uint_16pp gamma_16_to_1; /* converts from file to 1.0 */ + png_bytep gamma_table PNG_DEPSTRUCT; /* gamma table for 8-bit + depth files */ + png_bytep gamma_from_1 PNG_DEPSTRUCT; /* converts from 1.0 to screen */ + png_bytep gamma_to_1 PNG_DEPSTRUCT; /* converts from file to 1.0 */ + png_uint_16pp gamma_16_table PNG_DEPSTRUCT; /* gamma table for 16-bit + depth files */ + png_uint_16pp gamma_16_from_1 PNG_DEPSTRUCT; /* converts from 1.0 to + screen */ + png_uint_16pp gamma_16_to_1 PNG_DEPSTRUCT; /* converts from file to 1.0 */ #endif #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED) - png_color_8 sig_bit; /* significant bits in each available channel */ + png_color_8 sig_bit PNG_DEPSTRUCT; /* significant bits in each + available channel */ #endif #if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) - png_color_8 shift; /* shift for significant bit tranformation */ + png_color_8 shift PNG_DEPSTRUCT; /* shift for significant bit + tranformation */ #endif #if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \ || defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_bytep trans; /* transparency values for paletted files */ - png_color_16 trans_values; /* transparency values for non-paletted files */ + png_bytep trans_alpha PNG_DEPSTRUCT; /* alpha values for + paletted files */ + png_color_16 trans_color PNG_DEPSTRUCT; /* transparent color for + non-paletted files */ #endif - png_read_status_ptr read_row_fn; /* called after each row is decoded */ - png_write_status_ptr write_row_fn; /* called after each row is encoded */ + png_read_status_ptr read_row_fn PNG_DEPSTRUCT; /* called after each + row is decoded */ + png_write_status_ptr write_row_fn PNG_DEPSTRUCT; /* called after each + row is encoded */ #ifdef PNG_PROGRESSIVE_READ_SUPPORTED - png_progressive_info_ptr info_fn; /* called after header data fully read */ - png_progressive_row_ptr row_fn; /* called after each prog. row is decoded */ - png_progressive_end_ptr end_fn; /* called after image is complete */ - png_bytep save_buffer_ptr; /* current location in save_buffer */ - png_bytep save_buffer; /* buffer for previously read data */ - png_bytep current_buffer_ptr; /* current location in current_buffer */ - png_bytep current_buffer; /* buffer for recently used data */ - png_uint_32 push_length; /* size of current input chunk */ - png_uint_32 skip_length; /* bytes to skip in input data */ - png_size_t save_buffer_size; /* amount of data now in save_buffer */ - png_size_t save_buffer_max; /* total size of save_buffer */ - png_size_t buffer_size; /* total amount of available input data */ - png_size_t current_buffer_size; /* amount of data now in current_buffer */ - int process_mode; /* what push library is currently doing */ - int cur_palette; /* current push library palette index */ + png_progressive_info_ptr info_fn PNG_DEPSTRUCT; /* called after header + data fully read */ + png_progressive_row_ptr row_fn PNG_DEPSTRUCT; /* called after each + prog. row is decoded */ + png_progressive_end_ptr end_fn PNG_DEPSTRUCT; /* called after image + is complete */ + png_bytep save_buffer_ptr PNG_DEPSTRUCT; /* current location in + save_buffer */ + png_bytep save_buffer PNG_DEPSTRUCT; /* buffer for previously + read data */ + png_bytep current_buffer_ptr PNG_DEPSTRUCT; /* current location in + current_buffer */ + png_bytep current_buffer PNG_DEPSTRUCT; /* buffer for recently + used data */ + png_uint_32 push_length PNG_DEPSTRUCT; /* size of current input + chunk */ + png_uint_32 skip_length PNG_DEPSTRUCT; /* bytes to skip in + input data */ + png_size_t save_buffer_size PNG_DEPSTRUCT; /* amount of data now + in save_buffer */ + png_size_t save_buffer_max PNG_DEPSTRUCT; /* total size of + save_buffer */ + png_size_t buffer_size PNG_DEPSTRUCT; /* total amount of + available input data */ + png_size_t current_buffer_size PNG_DEPSTRUCT; /* amount of data now + in current_buffer */ + int process_mode PNG_DEPSTRUCT; /* what push library + is currently doing */ + int cur_palette PNG_DEPSTRUCT; /* current push library + palette index */ + +# ifdef PNG_TEXT_SUPPORTED + png_size_t current_text_size PNG_DEPSTRUCT; /* current size of + text input data */ + png_size_t current_text_left PNG_DEPSTRUCT; /* how much text left + to read in input */ + png_charp current_text PNG_DEPSTRUCT; /* current text chunk + buffer */ + png_charp current_text_ptr PNG_DEPSTRUCT; /* current location + in current_text */ +# endif /* PNG_PROGRESSIVE_READ_SUPPORTED && PNG_TEXT_SUPPORTED */ -# if defined(PNG_TEXT_SUPPORTED) - png_size_t current_text_size; /* current size of text input data */ - png_size_t current_text_left; /* how much text left to read in input */ - png_charp current_text; /* current text chunk buffer */ - png_charp current_text_ptr; /* current location in current_text */ -# endif /* PNG_TEXT_SUPPORTED */ #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ #if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__) -/* for the Borland special 64K segment handler */ - png_bytepp offset_table_ptr; - png_bytep offset_table; - png_uint_16 offset_table_number; - png_uint_16 offset_table_count; - png_uint_16 offset_table_count_free; +/* For the Borland special 64K segment handler */ + png_bytepp offset_table_ptr PNG_DEPSTRUCT; + png_bytep offset_table PNG_DEPSTRUCT; + png_uint_16 offset_table_number PNG_DEPSTRUCT; + png_uint_16 offset_table_count PNG_DEPSTRUCT; + png_uint_16 offset_table_count_free PNG_DEPSTRUCT; #endif -#if defined(PNG_READ_DITHER_SUPPORTED) - png_bytep palette_lookup; /* lookup table for dithering */ - png_bytep dither_index; /* index translation for palette files */ +#ifdef PNG_READ_QUANTIZE_SUPPORTED + png_bytep palette_lookup PNG_DEPSTRUCT; /* lookup table for quantizing */ + png_bytep quantize_index PNG_DEPSTRUCT; /* index translation for palette + files */ #endif -#if defined(PNG_READ_DITHER_SUPPORTED) || defined(PNG_hIST_SUPPORTED) - png_uint_16p hist; /* histogram */ +#if defined(PNG_READ_QUANTIZE_SUPPORTED) || defined(PNG_hIST_SUPPORTED) + png_uint_16p hist PNG_DEPSTRUCT; /* histogram */ #endif -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - png_byte heuristic_method; /* heuristic for row filter selection */ - png_byte num_prev_filters; /* number of weights for previous rows */ - png_bytep prev_filters; /* filter type(s) of previous row(s) */ - png_uint_16p filter_weights; /* weight(s) for previous line(s) */ - png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */ - png_uint_16p filter_costs; /* relative filter calculation cost */ - png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */ +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED + png_byte heuristic_method PNG_DEPSTRUCT; /* heuristic for row + filter selection */ + png_byte num_prev_filters PNG_DEPSTRUCT; /* number of weights + for previous rows */ + png_bytep prev_filters PNG_DEPSTRUCT; /* filter type(s) of + previous row(s) */ + png_uint_16p filter_weights PNG_DEPSTRUCT; /* weight(s) for previous + line(s) */ + png_uint_16p inv_filter_weights PNG_DEPSTRUCT; /* 1/weight(s) for + previous line(s) */ + png_uint_16p filter_costs PNG_DEPSTRUCT; /* relative filter + calculation cost */ + png_uint_16p inv_filter_costs PNG_DEPSTRUCT; /* 1/relative filter + calculation cost */ #endif -#if defined(PNG_TIME_RFC1123_SUPPORTED) - png_charp time_buffer; /* String to hold RFC 1123 time text */ +#ifdef PNG_TIME_RFC1123_SUPPORTED + png_charp time_buffer PNG_DEPSTRUCT; /* String to hold RFC 1123 time text */ #endif /* New members added in libpng-1.0.6 */ -#ifdef PNG_FREE_ME_SUPPORTED - png_uint_32 free_me; /* flags items libpng is responsible for freeing */ + png_uint_32 free_me PNG_DEPSTRUCT; /* flags items libpng is + responsible for freeing */ + +#ifdef PNG_USER_CHUNKS_SUPPORTED + png_voidp user_chunk_ptr PNG_DEPSTRUCT; + png_user_chunk_ptr read_user_chunk_fn PNG_DEPSTRUCT; /* user read + chunk handler */ #endif -#if defined(PNG_USER_CHUNKS_SUPPORTED) - png_voidp user_chunk_ptr; - png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */ -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - int num_chunk_list; - png_bytep chunk_list; +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED + int num_chunk_list PNG_DEPSTRUCT; + png_bytep chunk_list PNG_DEPSTRUCT; #endif /* New members added in libpng-1.0.3 */ -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - png_byte rgb_to_gray_status; +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED + png_byte rgb_to_gray_status PNG_DEPSTRUCT; /* These were changed from png_byte in libpng-1.0.6 */ - png_uint_16 rgb_to_gray_red_coeff; - png_uint_16 rgb_to_gray_green_coeff; - png_uint_16 rgb_to_gray_blue_coeff; + png_uint_16 rgb_to_gray_red_coeff PNG_DEPSTRUCT; + png_uint_16 rgb_to_gray_green_coeff PNG_DEPSTRUCT; + png_uint_16 rgb_to_gray_blue_coeff PNG_DEPSTRUCT; #endif /* New member added in libpng-1.0.4 (renamed in 1.0.9) */ #if defined(PNG_MNG_FEATURES_SUPPORTED) || \ defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) -/* changed from png_byte to png_uint_32 at version 1.2.0 */ -#ifdef PNG_1_0_X - png_byte mng_features_permitted; -#else - png_uint_32 mng_features_permitted; -#endif /* PNG_1_0_X */ +/* Changed from png_byte to png_uint_32 at version 1.2.0 */ + png_uint_32 mng_features_permitted PNG_DEPSTRUCT; #endif /* New member added in libpng-1.0.7 */ #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_fixed_point int_gamma; + png_fixed_point int_gamma PNG_DEPSTRUCT; #endif /* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */ -#if defined(PNG_MNG_FEATURES_SUPPORTED) - png_byte filter_type; -#endif - -#if defined(PNG_1_0_X) -/* New member added in libpng-1.0.10, ifdef'ed out in 1.2.0 */ - png_uint_32 row_buf_size; +#ifdef PNG_MNG_FEATURES_SUPPORTED + png_byte filter_type PNG_DEPSTRUCT; #endif /* New members added in libpng-1.2.0 */ -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -# if !defined(PNG_1_0_X) -# if defined(PNG_MMX_CODE_SUPPORTED) - png_byte mmx_bitdepth_threshold; - png_uint_32 mmx_rowbytes_threshold; -# endif - png_uint_32 asm_flags; -# endif -#endif /* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */ #ifdef PNG_USER_MEM_SUPPORTED - png_voidp mem_ptr; /* user supplied struct for mem functions */ - png_malloc_ptr malloc_fn; /* function for allocating memory */ - png_free_ptr free_fn; /* function for freeing memory */ + png_voidp mem_ptr PNG_DEPSTRUCT; /* user supplied struct for + mem functions */ + png_malloc_ptr malloc_fn PNG_DEPSTRUCT; /* function for + allocating memory */ + png_free_ptr free_fn PNG_DEPSTRUCT; /* function for + freeing memory */ #endif /* New member added in libpng-1.0.13 and 1.2.0 */ - png_bytep big_row_buf; /* buffer to save current (unfiltered) row */ + png_bytep big_row_buf PNG_DEPSTRUCT; /* buffer to save current + (unfiltered) row */ -#if defined(PNG_READ_DITHER_SUPPORTED) +#ifdef PNG_READ_QUANTIZE_SUPPORTED /* The following three members were added at version 1.0.14 and 1.2.4 */ - png_bytep dither_sort; /* working sort array */ - png_bytep index_to_palette; /* where the original index currently is */ - /* in the palette */ - png_bytep palette_to_index; /* which original index points to this */ - /* palette color */ + png_bytep quantize_sort PNG_DEPSTRUCT; /* working sort array */ + png_bytep index_to_palette PNG_DEPSTRUCT; /* where the original + index currently is + in the palette */ + png_bytep palette_to_index PNG_DEPSTRUCT; /* which original index + points to this + palette color */ #endif /* New members added in libpng-1.0.16 and 1.2.6 */ - png_byte compression_type; + png_byte compression_type PNG_DEPSTRUCT; -#ifdef PNG_SET_USER_LIMITS_SUPPORTED - png_uint_32 user_width_max; - png_uint_32 user_height_max; +#ifdef PNG_USER_LIMITS_SUPPORTED + png_uint_32 user_width_max PNG_DEPSTRUCT; + png_uint_32 user_height_max PNG_DEPSTRUCT; + /* Added in libpng-1.4.0: Total number of sPLT, text, and unknown + * chunks that can be stored (0 means unlimited). + */ + png_uint_32 user_chunk_cache_max PNG_DEPSTRUCT; #endif /* New member added in libpng-1.0.25 and 1.2.17 */ -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - /* storage for unknown chunk that the library doesn't recognize. */ - png_unknown_chunk unknown_chunk; +#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED + /* Storage for unknown chunk that the library doesn't recognize. */ + png_unknown_chunk unknown_chunk PNG_DEPSTRUCT; #endif /* New members added in libpng-1.2.26 */ - png_uint_32 old_big_row_buf_size, old_prev_row_size; + png_uint_32 old_big_row_buf_size PNG_DEPSTRUCT; + png_uint_32 old_prev_row_size PNG_DEPSTRUCT; + +/* New member added in libpng-1.2.30 */ + png_charp chunkdata PNG_DEPSTRUCT; /* buffer for reading chunk data */ + +#ifdef PNG_IO_STATE_SUPPORTED +/* New member added in libpng-1.4.0 */ + png_uint_32 io_state PNG_DEPSTRUCT; +#endif }; /* This triggers a compiler error in png.c, if png.c and png.h * do not agree upon the version number. */ -typedef png_structp version_1_2_29; +typedef png_structp version_1_4_4; typedef png_struct FAR * FAR * png_structpp; @@ -1461,12 +1487,12 @@ typedef png_struct FAR * FAR * png_structpp; */ /* Returns the version number of the library */ -extern PNG_EXPORT(png_uint_32,png_access_version_number) PNGARG((void)); +PNG_EXPORT(png_uint_32,png_access_version_number) PNGARG((void)); /* Tell lib we have already handled the first magic bytes. * Handling more than 8 bytes from the beginning of the file is an error. */ -extern PNG_EXPORT(void,png_set_sig_bytes) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_sig_bytes) PNGARG((png_structp png_ptr, int num_bytes)); /* Check sig[start] through sig[start + num_to_check - 1] to see if it's a @@ -1474,213 +1500,217 @@ extern PNG_EXPORT(void,png_set_sig_bytes) PNGARG((png_structp png_ptr, * signature, and non-zero otherwise. Having num_to_check == 0 or * start > 7 will always fail (ie return non-zero). */ -extern PNG_EXPORT(int,png_sig_cmp) PNGARG((png_bytep sig, png_size_t start, +PNG_EXPORT(int,png_sig_cmp) PNGARG((png_bytep sig, png_size_t start, png_size_t num_to_check)); /* Simple signature checking function. This is the same as calling * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n). */ -extern PNG_EXPORT(int,png_check_sig) PNGARG((png_bytep sig, int num)); +#define png_check_sig(sig,n) !png_sig_cmp((sig), 0, (n)) /* Allocate and initialize png_ptr struct for reading, and any other memory. */ -extern PNG_EXPORT(png_structp,png_create_read_struct) +PNG_EXPORT(png_structp,png_create_read_struct) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn)); + png_error_ptr error_fn, png_error_ptr warn_fn)) PNG_ALLOCATED; /* Allocate and initialize png_ptr struct for writing, and any other memory */ -extern PNG_EXPORT(png_structp,png_create_write_struct) +PNG_EXPORT(png_structp,png_create_write_struct) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn)); + png_error_ptr error_fn, png_error_ptr warn_fn)) PNG_ALLOCATED; -#ifdef PNG_WRITE_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_compression_buffer_size) +PNG_EXPORT(png_size_t,png_get_compression_buffer_size) PNGARG((png_structp png_ptr)); + +PNG_EXPORT(void,png_set_compression_buffer_size) + PNGARG((png_structp png_ptr, png_size_t size)); + +/* Moved from pngconf.h in 1.4.0 and modified to ensure setjmp/longjmp + * match up. + */ +#ifdef PNG_SETJMP_SUPPORTED +/* This function returns the jmp_buf built in to *png_ptr. It must be + * supplied with an appropriate 'longjmp' function to use on that jmp_buf + * unless the default error function is overridden in which case NULL is + * acceptable. The size of the jmp_buf is checked against the actual size + * allocated by the library - the call will return NULL on a mismatch + * indicating an ABI mismatch. + */ +PNG_EXPORT(jmp_buf*, png_set_longjmp_fn) + PNGARG((png_structp png_ptr, png_longjmp_ptr longjmp_fn, size_t + jmp_buf_size)); +# define png_jmpbuf(png_ptr) \ + (*png_set_longjmp_fn((png_ptr), longjmp, sizeof (jmp_buf))) +#else +# define png_jmpbuf(png_ptr) \ + (LIBPNG_WAS_COMPILED_WITH__PNG_NO_SETJMP) #endif -#ifdef PNG_WRITE_SUPPORTED -extern PNG_EXPORT(void,png_set_compression_buffer_size) - PNGARG((png_structp png_ptr, png_uint_32 size)); -#endif - +#ifdef PNG_READ_SUPPORTED /* Reset the compression stream */ -extern PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr)); +PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr)); +#endif /* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */ #ifdef PNG_USER_MEM_SUPPORTED -extern PNG_EXPORT(png_structp,png_create_read_struct_2) +PNG_EXPORT(png_structp,png_create_read_struct_2) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn)); -extern PNG_EXPORT(png_structp,png_create_write_struct_2) + png_malloc_ptr malloc_fn, png_free_ptr free_fn)) PNG_ALLOCATED; +PNG_EXPORT(png_structp,png_create_write_struct_2) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn)); + png_malloc_ptr malloc_fn, png_free_ptr free_fn)) PNG_ALLOCATED; #endif +/* Write the PNG file signature. */ +PNG_EXPORT(void,png_write_sig) PNGARG((png_structp png_ptr)); + /* Write a PNG chunk - size, type, (optional) data, CRC. */ -extern PNG_EXPORT(void,png_write_chunk) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_write_chunk) PNGARG((png_structp png_ptr, png_bytep chunk_name, png_bytep data, png_size_t length)); /* Write the start of a PNG chunk - length and chunk name. */ -extern PNG_EXPORT(void,png_write_chunk_start) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_write_chunk_start) PNGARG((png_structp png_ptr, png_bytep chunk_name, png_uint_32 length)); /* Write the data of a PNG chunk started with png_write_chunk_start(). */ -extern PNG_EXPORT(void,png_write_chunk_data) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_write_chunk_data) PNGARG((png_structp png_ptr, png_bytep data, png_size_t length)); /* Finish a chunk started with png_write_chunk_start() (includes CRC). */ -extern PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr)); /* Allocate and initialize the info structure */ -extern PNG_EXPORT(png_infop,png_create_info_struct) - PNGARG((png_structp png_ptr)); +PNG_EXPORT(png_infop,png_create_info_struct) + PNGARG((png_structp png_ptr)) PNG_ALLOCATED; -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Initialize the info structure (old interface - DEPRECATED) */ -extern PNG_EXPORT(void,png_info_init) PNGARG((png_infop info_ptr)); -#undef png_info_init -#define png_info_init(info_ptr) png_info_init_3(&info_ptr,\ - png_sizeof(png_info)); -#endif - -extern PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr, +PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr, png_size_t png_info_struct_size)); /* Writes all the PNG information before the image. */ -extern PNG_EXPORT(void,png_write_info_before_PLTE) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_write_info_before_PLTE) PNGARG((png_structp png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr, png_infop info_ptr)); -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read the information before the actual image data. */ -extern PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr, +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read the information before the actual image data. */ +PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif -#if defined(PNG_TIME_RFC1123_SUPPORTED) -extern PNG_EXPORT(png_charp,png_convert_to_rfc1123) +#ifdef PNG_TIME_RFC1123_SUPPORTED +PNG_EXPORT(png_charp,png_convert_to_rfc1123) PNGARG((png_structp png_ptr, png_timep ptime)); #endif -#if !defined(_WIN32_WCE) -/* "time.h" functions are not supported on WindowsCE */ -#if defined(PNG_WRITE_tIME_SUPPORTED) -/* convert from a struct tm to png_time */ -extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime, +#ifdef PNG_CONVERT_tIME_SUPPORTED +/* Convert from a struct tm to png_time */ +PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime, struct tm FAR * ttime)); -/* convert from time_t to png_time. Uses gmtime() */ -extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime, +/* Convert from time_t to png_time. Uses gmtime() */ +PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime, time_t ttime)); -#endif /* PNG_WRITE_tIME_SUPPORTED */ -#endif /* _WIN32_WCE */ +#endif /* PNG_CONVERT_tIME_SUPPORTED */ -#if defined(PNG_READ_EXPAND_SUPPORTED) +#ifdef PNG_READ_EXPAND_SUPPORTED /* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */ -extern PNG_EXPORT(void,png_set_expand) PNGARG((png_structp png_ptr)); -#if !defined(PNG_1_0_X) -extern PNG_EXPORT(void,png_set_expand_gray_1_2_4_to_8) PNGARG((png_structp +PNG_EXPORT(void,png_set_expand) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_expand_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)); -#endif -extern PNG_EXPORT(void,png_set_palette_to_rgb) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(void,png_set_tRNS_to_alpha) PNGARG((png_structp png_ptr)); -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Deprecated */ -extern PNG_EXPORT(void,png_set_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)); -#endif +PNG_EXPORT(void,png_set_palette_to_rgb) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_tRNS_to_alpha) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) /* Use blue, green, red order for pixels. */ -extern PNG_EXPORT(void,png_set_bgr) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_bgr) PNGARG((png_structp png_ptr)); #endif -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) +#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED /* Expand the grayscale to 24-bit RGB if necessary. */ -extern PNG_EXPORT(void,png_set_gray_to_rgb) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_gray_to_rgb) PNGARG((png_structp png_ptr)); #endif -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) +#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED /* Reduce RGB to grayscale. */ #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_rgb_to_gray) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_rgb_to_gray) PNGARG((png_structp png_ptr, int error_action, double red, double green )); #endif -extern PNG_EXPORT(void,png_set_rgb_to_gray_fixed) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_rgb_to_gray_fixed) PNGARG((png_structp png_ptr, int error_action, png_fixed_point red, png_fixed_point green )); -extern PNG_EXPORT(png_byte,png_get_rgb_to_gray_status) PNGARG((png_structp +PNG_EXPORT(png_byte,png_get_rgb_to_gray_status) PNGARG((png_structp png_ptr)); #endif -extern PNG_EXPORT(void,png_build_grayscale_palette) PNGARG((int bit_depth, +PNG_EXPORT(void,png_build_grayscale_palette) PNGARG((int bit_depth, png_colorp palette)); -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -extern PNG_EXPORT(void,png_set_strip_alpha) PNGARG((png_structp png_ptr)); +#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED +PNG_EXPORT(void,png_set_strip_alpha) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -extern PNG_EXPORT(void,png_set_swap_alpha) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_swap_alpha) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -extern PNG_EXPORT(void,png_set_invert_alpha) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_invert_alpha) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) /* Add a filler byte to 8-bit Gray or 24-bit RGB images. */ -extern PNG_EXPORT(void,png_set_filler) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_filler) PNGARG((png_structp png_ptr, png_uint_32 filler, int flags)); /* The values of the PNG_FILLER_ defines should NOT be changed */ #define PNG_FILLER_BEFORE 0 #define PNG_FILLER_AFTER 1 /* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */ -#if !defined(PNG_1_0_X) -extern PNG_EXPORT(void,png_set_add_alpha) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_add_alpha) PNGARG((png_structp png_ptr, png_uint_32 filler, int flags)); -#endif #endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */ #if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) /* Swap bytes in 16-bit depth files. */ -extern PNG_EXPORT(void,png_set_swap) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_swap) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) /* Use 1 byte per pixel in 1, 2, or 4-bit depth files. */ -extern PNG_EXPORT(void,png_set_packing) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_packing) PNGARG((png_structp png_ptr)); #endif -#if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED) +#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \ + defined(PNG_WRITE_PACKSWAP_SUPPORTED) /* Swap packing order of pixels in bytes. */ -extern PNG_EXPORT(void,png_set_packswap) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_packswap) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) /* Converts files to legal bit depths. */ -extern PNG_EXPORT(void,png_set_shift) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_shift) PNGARG((png_structp png_ptr, png_color_8p true_bits)); #endif #if defined(PNG_READ_INTERLACING_SUPPORTED) || \ defined(PNG_WRITE_INTERLACING_SUPPORTED) /* Have the code handle the interlacing. Returns the number of passes. */ -extern PNG_EXPORT(int,png_set_interlace_handling) PNGARG((png_structp png_ptr)); +PNG_EXPORT(int,png_set_interlace_handling) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) /* Invert monochrome files */ -extern PNG_EXPORT(void,png_set_invert_mono) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_set_invert_mono) PNGARG((png_structp png_ptr)); #endif -#if defined(PNG_READ_BACKGROUND_SUPPORTED) +#ifdef PNG_READ_BACKGROUND_SUPPORTED /* Handle alpha and tRNS by replacing with a background color. */ #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr, png_color_16p background_color, int background_gamma_code, int need_expand, double background_gamma)); #endif @@ -1690,112 +1720,100 @@ extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr, #define PNG_BACKGROUND_GAMMA_UNIQUE 3 #endif -#if defined(PNG_READ_16_TO_8_SUPPORTED) -/* strip the second byte of information from a 16-bit depth file. */ -extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr)); +#ifdef PNG_READ_16_TO_8_SUPPORTED +/* Strip the second byte of information from a 16-bit depth file. */ +PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr)); #endif -#if defined(PNG_READ_DITHER_SUPPORTED) -/* Turn on dithering, and reduce the palette to the number of colors available. */ -extern PNG_EXPORT(void,png_set_dither) PNGARG((png_structp png_ptr, +#ifdef PNG_READ_QUANTIZE_SUPPORTED +/* Turn on quantizing, and reduce the palette to the number of colors + * available. Prior to libpng-1.4.2, this was png_set_dither(). + */ +PNG_EXPORT(void,png_set_quantize) PNGARG((png_structp png_ptr, png_colorp palette, int num_palette, int maximum_colors, - png_uint_16p histogram, int full_dither)); + png_uint_16p histogram, int full_quantize)); #endif +/* This migration aid will be removed from libpng-1.5.0 */ +#define png_set_dither png_set_quantize -#if defined(PNG_READ_GAMMA_SUPPORTED) +#ifdef PNG_READ_GAMMA_SUPPORTED /* Handle gamma correction. Screen_gamma=(display_exponent) */ #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr, double screen_gamma, double default_file_gamma)); #endif #endif -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ - defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) -/* Permit or disallow empty PLTE (0: not permitted, 1: permitted) */ -/* Deprecated and will be removed. Use png_permit_mng_features() instead. */ -extern PNG_EXPORT(void,png_permit_empty_plte) PNGARG((png_structp png_ptr, - int empty_plte_permitted)); -#endif -#endif -#if defined(PNG_WRITE_FLUSH_SUPPORTED) +#ifdef PNG_WRITE_FLUSH_SUPPORTED /* Set how many lines between output flushes - 0 for no flushing */ -extern PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows)); +PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows)); /* Flush the current PNG output buffer */ -extern PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr)); #endif -/* optional update palette with requested transformations */ -extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr)); +/* Optional update palette with requested transformations */ +PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr)); -/* optional call to update the users info structure */ -extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr, +/* Optional call to update the users info structure */ +PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr, png_infop info_ptr)); -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read one or more rows of image data. */ -extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr, +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read one or more rows of image data. */ +PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr, png_bytepp row, png_bytepp display_row, png_uint_32 num_rows)); #endif -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read a row of data. */ -extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr, +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read a row of data. */ +PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr, png_bytep row, png_bytep display_row)); #endif -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read the whole image into memory at once. */ -extern PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr, +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read the whole image into memory at once. */ +PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr, png_bytepp image)); #endif -/* write a row of image data */ -extern PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr, +/* Write a row of image data */ +PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr, png_bytep row)); -/* write a few rows of image data */ -extern PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr, +/* Write a few rows of image data */ +PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr, png_bytepp row, png_uint_32 num_rows)); -/* write the image data */ -extern PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr, +/* Write the image data */ +PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr, png_bytepp image)); -/* writes the end of the PNG file. */ -extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr, +/* Write the end of the PNG file. */ +PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr, png_infop info_ptr)); -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read the end of the PNG file. */ -extern PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr, +#ifdef PNG_SEQUENTIAL_READ_SUPPORTED +/* Read the end of the PNG file. */ +PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif -/* free any memory associated with the png_info_struct */ -extern PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr, +/* Free any memory associated with the png_info_struct */ +PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr, png_infopp info_ptr_ptr)); -/* free any memory associated with the png_struct and the png_info_structs */ -extern PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp +/* Free any memory associated with the png_struct and the png_info_structs */ +PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)); -/* free all memory used by the read (old method - NOT DLL EXPORTED) */ -extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr, - png_infop end_info_ptr)); - -/* free any memory associated with the png_struct and the png_info_structs */ -extern PNG_EXPORT(void,png_destroy_write_struct) +/* Free any memory associated with the png_struct and the png_info_structs */ +PNG_EXPORT(void,png_destroy_write_struct) PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)); -/* free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */ -extern void png_write_destroy PNGARG((png_structp png_ptr)); - -/* set the libpng method of handling chunk CRC errors */ -extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr, +/* Set the libpng method of handling chunk CRC errors */ +PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr, int crit_action, int ancil_action)); /* Values for png_set_crc_action() to say how to handle CRC errors in @@ -1822,10 +1840,10 @@ extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr, * header file (zlib.h) for an explination of the compression functions. */ -/* set the filtering method(s) used by libpng. Currently, the only valid +/* Set the filtering method(s) used by libpng. Currently, the only valid * value for "method" is 0. */ -extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method, +PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method, int filters)); /* Flags for png_set_filter() to say which filters to use. The flags @@ -1852,7 +1870,7 @@ extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method, #define PNG_FILTER_VALUE_PAETH 4 #define PNG_FILTER_VALUE_LAST 5 -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) /* EXPERIMENTAL */ +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* EXPERIMENTAL */ /* The "heuristic_method" is given by one of the PNG_FILTER_HEURISTIC_ * defines, either the default (minimum-sum-of-absolute-differences), or * the experimental method (weighted-minimum-sum-of-absolute-differences). @@ -1882,7 +1900,7 @@ extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method, * to the UNWEIGHTED method, but with added encoding time/computation. */ #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr, int heuristic_method, int num_weights, png_doublep filter_weights, png_doublep filter_costs)); #endif @@ -1903,19 +1921,19 @@ extern PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr, * for PNG images, and do considerably fewer caclulations. In the future, * these values may not correspond directly to the zlib compression levels. */ -extern PNG_EXPORT(void,png_set_compression_level) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_compression_level) PNGARG((png_structp png_ptr, int level)); -extern PNG_EXPORT(void,png_set_compression_mem_level) +PNG_EXPORT(void,png_set_compression_mem_level) PNGARG((png_structp png_ptr, int mem_level)); -extern PNG_EXPORT(void,png_set_compression_strategy) +PNG_EXPORT(void,png_set_compression_strategy) PNGARG((png_structp png_ptr, int strategy)); -extern PNG_EXPORT(void,png_set_compression_window_bits) +PNG_EXPORT(void,png_set_compression_window_bits) PNGARG((png_structp png_ptr, int window_bits)); -extern PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr, int method)); /* These next functions are called for input/output, memory, and error @@ -1927,9 +1945,10 @@ extern PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr, * more information. */ -#if !defined(PNG_NO_STDIO) +#ifdef PNG_STDIO_SUPPORTED /* Initialize the input/output for the PNG file to the default functions. */ -extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr, png_FILE_p fp)); +PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr, + png_FILE_p fp)); #endif /* Replace the (error and abort), and warning functions with user @@ -1940,68 +1959,70 @@ extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr, png_FILE_p fp)) * default function will be used. */ -extern PNG_EXPORT(void,png_set_error_fn) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_error_fn) PNGARG((png_structp png_ptr, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn)); /* Return the user pointer associated with the error functions */ -extern PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr)); +PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr)); /* Replace the default data output functions with a user supplied one(s). * If buffered output is not used, then output_flush_fn can be set to NULL. * If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time * output_flush_fn will be ignored (and thus can be NULL). + * It is probably a mistake to use NULL for output_flush_fn if + * write_data_fn is not also NULL unless you have built libpng with + * PNG_WRITE_FLUSH_SUPPORTED undefined, because in this case libpng's + * default flush function, which uses the standard *FILE structure, will + * be used. */ -extern PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr, png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)); /* Replace the default data input function with a user supplied one. */ -extern PNG_EXPORT(void,png_set_read_fn) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_read_fn) PNGARG((png_structp png_ptr, png_voidp io_ptr, png_rw_ptr read_data_fn)); /* Return the user pointer associated with the I/O functions */ -extern PNG_EXPORT(png_voidp,png_get_io_ptr) PNGARG((png_structp png_ptr)); +PNG_EXPORT(png_voidp,png_get_io_ptr) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(void,png_set_read_status_fn) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_read_status_fn) PNGARG((png_structp png_ptr, png_read_status_ptr read_row_fn)); -extern PNG_EXPORT(void,png_set_write_status_fn) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_write_status_fn) PNGARG((png_structp png_ptr, png_write_status_ptr write_row_fn)); #ifdef PNG_USER_MEM_SUPPORTED /* Replace the default memory allocation functions with user supplied one(s). */ -extern PNG_EXPORT(void,png_set_mem_fn) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_mem_fn) PNGARG((png_structp png_ptr, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)); /* Return the user pointer associated with the memory functions */ -extern PNG_EXPORT(png_voidp,png_get_mem_ptr) PNGARG((png_structp png_ptr)); +PNG_EXPORT(png_voidp,png_get_mem_ptr) PNGARG((png_structp png_ptr)); #endif -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -extern PNG_EXPORT(void,png_set_read_user_transform_fn) PNGARG((png_structp +#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED +PNG_EXPORT(void,png_set_read_user_transform_fn) PNGARG((png_structp png_ptr, png_user_transform_ptr read_user_transform_fn)); #endif -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -extern PNG_EXPORT(void,png_set_write_user_transform_fn) PNGARG((png_structp +#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED +PNG_EXPORT(void,png_set_write_user_transform_fn) PNGARG((png_structp png_ptr, png_user_transform_ptr write_user_transform_fn)); #endif #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -extern PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp + defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) +PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp png_ptr, png_voidp user_transform_ptr, int user_transform_depth, int user_transform_channels)); /* Return the user pointer associated with the user transform functions */ -extern PNG_EXPORT(png_voidp,png_get_user_transform_ptr) +PNG_EXPORT(png_voidp,png_get_user_transform_ptr) PNGARG((png_structp png_ptr)); #endif #ifdef PNG_USER_CHUNKS_SUPPORTED -extern PNG_EXPORT(void,png_set_read_user_chunk_fn) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_read_user_chunk_fn) PNGARG((png_structp png_ptr, png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn)); -extern PNG_EXPORT(png_voidp,png_get_user_chunk_ptr) PNGARG((png_structp +PNG_EXPORT(png_voidp,png_get_user_chunk_ptr) PNGARG((png_structp png_ptr)); #endif @@ -2009,59 +2030,47 @@ extern PNG_EXPORT(png_voidp,png_get_user_chunk_ptr) PNGARG((png_structp /* Sets the function callbacks for the push reader, and a pointer to a * user-defined structure available to the callback functions. */ -extern PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_ptr, png_voidp progressive_ptr, png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn)); -/* returns the user pointer associated with the push read functions */ -extern PNG_EXPORT(png_voidp,png_get_progressive_ptr) +/* Returns the user pointer associated with the push read functions */ +PNG_EXPORT(png_voidp,png_get_progressive_ptr) PNGARG((png_structp png_ptr)); -/* function to be called when data becomes available */ -extern PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr, +/* Function to be called when data becomes available */ +PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr, png_infop info_ptr, png_bytep buffer, png_size_t buffer_size)); -/* function that combines rows. Not very much different than the +/* Function that combines rows. Not very much different than the * png_combine_row() call. Is this even used????? */ -extern PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr, png_bytep old_row, png_bytep new_row)); #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ -extern PNG_EXPORT(png_voidp,png_malloc) PNGARG((png_structp png_ptr, - png_uint_32 size)); +PNG_EXPORT(png_voidp,png_malloc) PNGARG((png_structp png_ptr, + png_alloc_size_t size)) PNG_ALLOCATED; +/* Added at libpng version 1.4.0 */ +PNG_EXPORT(png_voidp,png_calloc) PNGARG((png_structp png_ptr, + png_alloc_size_t size)) PNG_ALLOCATED; -#if defined(PNG_1_0_X) -# define png_malloc_warn png_malloc -#else /* Added at libpng version 1.2.4 */ -extern PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr, - png_uint_32 size)); -#endif +PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr, + png_alloc_size_t size)) PNG_ALLOCATED; -/* frees a pointer allocated by png_malloc() */ -extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr)); - -#if defined(PNG_1_0_X) -/* Function to allocate memory for zlib. */ -extern PNG_EXPORT(voidpf,png_zalloc) PNGARG((voidpf png_ptr, uInt items, - uInt size)); - -/* Function to free memory for zlib */ -extern PNG_EXPORT(void,png_zfree) PNGARG((voidpf png_ptr, voidpf ptr)); -#endif +/* Frees a pointer allocated by png_malloc() */ +PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr)); /* Free data that was allocated internally */ -extern PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 free_me, int num)); -#ifdef PNG_FREE_ME_SUPPORTED /* Reassign responsibility for freeing existing data, whether allocated * by libpng or by the application */ -extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr, png_infop info_ptr, int freer, png_uint_32 mask)); -#endif -/* assignments for png_data_freer */ +/* Assignments for png_data_freer */ #define PNG_DESTROY_WILL_FREE_DATA 1 #define PNG_SET_WILL_FREE_DATA 1 #define PNG_USER_WILL_FREE_DATA 2 @@ -2081,47 +2090,47 @@ extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr, #define PNG_FREE_MUL 0x4220 /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */ #ifdef PNG_USER_MEM_SUPPORTED -extern PNG_EXPORT(png_voidp,png_malloc_default) PNGARG((png_structp png_ptr, - png_uint_32 size)); -extern PNG_EXPORT(void,png_free_default) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_voidp,png_malloc_default) PNGARG((png_structp png_ptr, + png_alloc_size_t size)) PNG_ALLOCATED; +PNG_EXPORT(void,png_free_default) PNGARG((png_structp png_ptr, png_voidp ptr)); #endif -extern PNG_EXPORT(png_voidp,png_memcpy_check) PNGARG((png_structp png_ptr, - png_voidp s1, png_voidp s2, png_uint_32 size)); - -extern PNG_EXPORT(png_voidp,png_memset_check) PNGARG((png_structp png_ptr, - png_voidp s1, int value, png_uint_32 size)); - -#if defined(USE_FAR_KEYWORD) /* memory model conversion function */ -extern void *png_far_to_near PNGARG((png_structp png_ptr,png_voidp ptr, - int check)); -#endif /* USE_FAR_KEYWORD */ - #ifndef PNG_NO_ERROR_TEXT /* Fatal error in PNG image of libpng - can't continue */ -extern PNG_EXPORT(void,png_error) PNGARG((png_structp png_ptr, - png_const_charp error_message)); +PNG_EXPORT(void,png_error) PNGARG((png_structp png_ptr, + png_const_charp error_message)) PNG_NORETURN; /* The same, but the chunk name is prepended to the error string. */ -extern PNG_EXPORT(void,png_chunk_error) PNGARG((png_structp png_ptr, - png_const_charp error_message)); +PNG_EXPORT(void,png_chunk_error) PNGARG((png_structp png_ptr, + png_const_charp error_message)) PNG_NORETURN; + #else /* Fatal error in PNG image of libpng - can't continue */ -extern PNG_EXPORT(void,png_err) PNGARG((png_structp png_ptr)); +PNG_EXPORT(void,png_err) PNGARG((png_structp png_ptr)) PNG_NORETURN; #endif -#ifndef PNG_NO_WARNINGS /* Non-fatal error in libpng. Can continue, but may have a problem. */ -extern PNG_EXPORT(void,png_warning) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_warning) PNGARG((png_structp png_ptr, png_const_charp warning_message)); -#ifdef PNG_READ_SUPPORTED /* Non-fatal error in libpng, chunk name is prepended to message. */ -extern PNG_EXPORT(void,png_chunk_warning) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_chunk_warning) PNGARG((png_structp png_ptr, png_const_charp warning_message)); -#endif /* PNG_READ_SUPPORTED */ -#endif /* PNG_NO_WARNINGS */ + +#ifdef PNG_BENIGN_ERRORS_SUPPORTED +/* Benign error in libpng. Can continue, but may have a problem. + * User can choose whether to handle as a fatal error or as a warning. */ +PNG_EXPORT(void,png_benign_error) PNGARG((png_structp png_ptr, + png_const_charp warning_message)); + +/* Same, chunk name is prepended to message. */ +PNG_EXPORT(void,png_chunk_benign_error) PNGARG((png_structp png_ptr, + png_const_charp warning_message)); + +PNG_EXPORT(void,png_set_benign_errors) PNGARG((png_structp + png_ptr, int allowed)); +#endif /* The png_set_ functions are for storing values in the png_info_struct. * Similarly, the png_get_ calls are used to read values from the @@ -2136,106 +2145,108 @@ extern PNG_EXPORT(void,png_chunk_warning) PNGARG((png_structp png_ptr, * png_info_struct. */ /* Returns "flag" if chunk data is valid in info_ptr. */ -extern PNG_EXPORT(png_uint_32,png_get_valid) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_valid) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 flag)); /* Returns number of bytes needed to hold a transformed row. */ -extern PNG_EXPORT(png_uint_32,png_get_rowbytes) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_size_t,png_get_rowbytes) PNGARG((png_structp png_ptr, png_infop info_ptr)); -#if defined(PNG_INFO_IMAGE_SUPPORTED) +#ifdef PNG_INFO_IMAGE_SUPPORTED /* Returns row_pointers, which is an array of pointers to scanlines that was -returned from png_read_png(). */ -extern PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr, + * returned from png_read_png(). + */ +PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Set row_pointers, which is an array of pointers to scanlines for use -by png_write_png(). */ -extern PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr, + * by png_write_png(). + */ +PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers)); #endif /* Returns number of color channels in image. */ -extern PNG_EXPORT(png_byte,png_get_channels) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_byte,png_get_channels) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifdef PNG_EASY_ACCESS_SUPPORTED /* Returns image width in pixels. */ -extern PNG_EXPORT(png_uint_32, png_get_image_width) PNGARG((png_structp +PNG_EXPORT(png_uint_32, png_get_image_width) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image height in pixels. */ -extern PNG_EXPORT(png_uint_32, png_get_image_height) PNGARG((png_structp +PNG_EXPORT(png_uint_32, png_get_image_height) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image bit_depth. */ -extern PNG_EXPORT(png_byte, png_get_bit_depth) PNGARG((png_structp +PNG_EXPORT(png_byte, png_get_bit_depth) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image color_type. */ -extern PNG_EXPORT(png_byte, png_get_color_type) PNGARG((png_structp +PNG_EXPORT(png_byte, png_get_color_type) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image filter_type. */ -extern PNG_EXPORT(png_byte, png_get_filter_type) PNGARG((png_structp +PNG_EXPORT(png_byte, png_get_filter_type) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image interlace_type. */ -extern PNG_EXPORT(png_byte, png_get_interlace_type) PNGARG((png_structp +PNG_EXPORT(png_byte, png_get_interlace_type) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image compression_type. */ -extern PNG_EXPORT(png_byte, png_get_compression_type) PNGARG((png_structp +PNG_EXPORT(png_byte, png_get_compression_type) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image resolution in pixels per meter, from pHYs chunk data. */ -extern PNG_EXPORT(png_uint_32, png_get_pixels_per_meter) PNGARG((png_structp +PNG_EXPORT(png_uint_32, png_get_pixels_per_meter) PNGARG((png_structp png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_uint_32, png_get_x_pixels_per_meter) PNGARG((png_structp +PNG_EXPORT(png_uint_32, png_get_x_pixels_per_meter) PNGARG((png_structp png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_uint_32, png_get_y_pixels_per_meter) PNGARG((png_structp +PNG_EXPORT(png_uint_32, png_get_y_pixels_per_meter) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns pixel aspect ratio, computed from pHYs chunk data. */ #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(float, png_get_pixel_aspect_ratio) PNGARG((png_structp +PNG_EXPORT(float, png_get_pixel_aspect_ratio) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif /* Returns image x, y offset in pixels or microns, from oFFs chunk data. */ -extern PNG_EXPORT(png_int_32, png_get_x_offset_pixels) PNGARG((png_structp +PNG_EXPORT(png_int_32, png_get_x_offset_pixels) PNGARG((png_structp png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_int_32, png_get_y_offset_pixels) PNGARG((png_structp +PNG_EXPORT(png_int_32, png_get_y_offset_pixels) PNGARG((png_structp png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_int_32, png_get_x_offset_microns) PNGARG((png_structp +PNG_EXPORT(png_int_32, png_get_x_offset_microns) PNGARG((png_structp png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_int_32, png_get_y_offset_microns) PNGARG((png_structp +PNG_EXPORT(png_int_32, png_get_y_offset_microns) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif /* PNG_EASY_ACCESS_SUPPORTED */ /* Returns pointer to signature string read from PNG header */ -extern PNG_EXPORT(png_bytep,png_get_signature) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_bytep,png_get_signature) PNGARG((png_structp png_ptr, png_infop info_ptr)); -#if defined(PNG_bKGD_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_bKGD) PNGARG((png_structp png_ptr, +#ifdef PNG_bKGD_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_bKGD) PNGARG((png_structp png_ptr, png_infop info_ptr, png_color_16p *background)); #endif -#if defined(PNG_bKGD_SUPPORTED) -extern PNG_EXPORT(void,png_set_bKGD) PNGARG((png_structp png_ptr, +#ifdef PNG_bKGD_SUPPORTED +PNG_EXPORT(void,png_set_bKGD) PNGARG((png_structp png_ptr, png_infop info_ptr, png_color_16p background)); #endif -#if defined(PNG_cHRM_SUPPORTED) +#ifdef PNG_cHRM_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_cHRM) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_cHRM) PNGARG((png_structp png_ptr, png_infop info_ptr, double *white_x, double *white_y, double *red_x, double *red_y, double *green_x, double *green_y, double *blue_x, double *blue_y)); #endif #ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_cHRM_fixed) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_cHRM_fixed) PNGARG((png_structp png_ptr, png_infop info_ptr, png_fixed_point *int_white_x, png_fixed_point *int_white_y, png_fixed_point *int_red_x, png_fixed_point *int_red_y, png_fixed_point *int_green_x, png_fixed_point *int_green_y, png_fixed_point @@ -2243,14 +2254,14 @@ extern PNG_EXPORT(png_uint_32,png_get_cHRM_fixed) PNGARG((png_structp png_ptr, #endif #endif -#if defined(PNG_cHRM_SUPPORTED) +#ifdef PNG_cHRM_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_cHRM) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_cHRM) PNGARG((png_structp png_ptr, png_infop info_ptr, double white_x, double white_y, double red_x, double red_y, double green_x, double green_y, double blue_x, double blue_y)); #endif #ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_cHRM_fixed) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_cHRM_fixed) PNGARG((png_structp png_ptr, png_infop info_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, @@ -2258,200 +2269,199 @@ extern PNG_EXPORT(void,png_set_cHRM_fixed) PNGARG((png_structp png_ptr, #endif #endif -#if defined(PNG_gAMA_SUPPORTED) +#ifdef PNG_gAMA_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_gAMA) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_gAMA) PNGARG((png_structp png_ptr, png_infop info_ptr, double *file_gamma)); #endif -extern PNG_EXPORT(png_uint_32,png_get_gAMA_fixed) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_gAMA_fixed) PNGARG((png_structp png_ptr, png_infop info_ptr, png_fixed_point *int_file_gamma)); #endif -#if defined(PNG_gAMA_SUPPORTED) +#ifdef PNG_gAMA_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_gAMA) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_gAMA) PNGARG((png_structp png_ptr, png_infop info_ptr, double file_gamma)); #endif -extern PNG_EXPORT(void,png_set_gAMA_fixed) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_gAMA_fixed) PNGARG((png_structp png_ptr, png_infop info_ptr, png_fixed_point int_file_gamma)); #endif -#if defined(PNG_hIST_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_hIST) PNGARG((png_structp png_ptr, +#ifdef PNG_hIST_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_hIST) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_16p *hist)); #endif -#if defined(PNG_hIST_SUPPORTED) -extern PNG_EXPORT(void,png_set_hIST) PNGARG((png_structp png_ptr, +#ifdef PNG_hIST_SUPPORTED +PNG_EXPORT(void,png_set_hIST) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)); #endif -extern PNG_EXPORT(png_uint_32,png_get_IHDR) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_IHDR) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 *width, png_uint_32 *height, int *bit_depth, int *color_type, int *interlace_method, int *compression_method, int *filter_method)); -extern PNG_EXPORT(void,png_set_IHDR) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_IHDR) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, int interlace_method, int compression_method, int filter_method)); -#if defined(PNG_oFFs_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_oFFs) PNGARG((png_structp png_ptr, +#ifdef PNG_oFFs_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_oFFs) PNGARG((png_structp png_ptr, png_infop info_ptr, png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type)); #endif -#if defined(PNG_oFFs_SUPPORTED) -extern PNG_EXPORT(void,png_set_oFFs) PNGARG((png_structp png_ptr, +#ifdef PNG_oFFs_SUPPORTED +PNG_EXPORT(void,png_set_oFFs) PNGARG((png_structp png_ptr, png_infop info_ptr, png_int_32 offset_x, png_int_32 offset_y, int unit_type)); #endif -#if defined(PNG_pCAL_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_pCAL) PNGARG((png_structp png_ptr, +#ifdef PNG_pCAL_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_pCAL) PNGARG((png_structp png_ptr, png_infop info_ptr, png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams, png_charp *units, png_charpp *params)); #endif -#if defined(PNG_pCAL_SUPPORTED) -extern PNG_EXPORT(void,png_set_pCAL) PNGARG((png_structp png_ptr, +#ifdef PNG_pCAL_SUPPORTED +PNG_EXPORT(void,png_set_pCAL) PNGARG((png_structp png_ptr, png_infop info_ptr, png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, png_charp units, png_charpp params)); #endif -#if defined(PNG_pHYs_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_pHYs) PNGARG((png_structp png_ptr, +#ifdef PNG_pHYs_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_pHYs) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); #endif -#if defined(PNG_pHYs_SUPPORTED) -extern PNG_EXPORT(void,png_set_pHYs) PNGARG((png_structp png_ptr, +#ifdef PNG_pHYs_SUPPORTED +PNG_EXPORT(void,png_set_pHYs) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type)); #endif -extern PNG_EXPORT(png_uint_32,png_get_PLTE) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_PLTE) PNGARG((png_structp png_ptr, png_infop info_ptr, png_colorp *palette, int *num_palette)); -extern PNG_EXPORT(void,png_set_PLTE) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_PLTE) PNGARG((png_structp png_ptr, png_infop info_ptr, png_colorp palette, int num_palette)); -#if defined(PNG_sBIT_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_sBIT) PNGARG((png_structp png_ptr, +#ifdef PNG_sBIT_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_sBIT) PNGARG((png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit)); #endif -#if defined(PNG_sBIT_SUPPORTED) -extern PNG_EXPORT(void,png_set_sBIT) PNGARG((png_structp png_ptr, +#ifdef PNG_sBIT_SUPPORTED +PNG_EXPORT(void,png_set_sBIT) PNGARG((png_structp png_ptr, png_infop info_ptr, png_color_8p sig_bit)); #endif -#if defined(PNG_sRGB_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_sRGB) PNGARG((png_structp png_ptr, +#ifdef PNG_sRGB_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_sRGB) PNGARG((png_structp png_ptr, png_infop info_ptr, int *intent)); #endif -#if defined(PNG_sRGB_SUPPORTED) -extern PNG_EXPORT(void,png_set_sRGB) PNGARG((png_structp png_ptr, +#ifdef PNG_sRGB_SUPPORTED +PNG_EXPORT(void,png_set_sRGB) PNGARG((png_structp png_ptr, png_infop info_ptr, int intent)); -extern PNG_EXPORT(void,png_set_sRGB_gAMA_and_cHRM) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_sRGB_gAMA_and_cHRM) PNGARG((png_structp png_ptr, png_infop info_ptr, int intent)); #endif -#if defined(PNG_iCCP_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_iCCP) PNGARG((png_structp png_ptr, +#ifdef PNG_iCCP_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_iCCP) PNGARG((png_structp png_ptr, png_infop info_ptr, png_charpp name, int *compression_type, png_charpp profile, png_uint_32 *proflen)); /* Note to maintainer: profile should be png_bytepp */ #endif -#if defined(PNG_iCCP_SUPPORTED) -extern PNG_EXPORT(void,png_set_iCCP) PNGARG((png_structp png_ptr, +#ifdef PNG_iCCP_SUPPORTED +PNG_EXPORT(void,png_set_iCCP) PNGARG((png_structp png_ptr, png_infop info_ptr, png_charp name, int compression_type, png_charp profile, png_uint_32 proflen)); /* Note to maintainer: profile should be png_bytep */ #endif -#if defined(PNG_sPLT_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_sPLT) PNGARG((png_structp png_ptr, +#ifdef PNG_sPLT_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_sPLT) PNGARG((png_structp png_ptr, png_infop info_ptr, png_sPLT_tpp entries)); #endif -#if defined(PNG_sPLT_SUPPORTED) -extern PNG_EXPORT(void,png_set_sPLT) PNGARG((png_structp png_ptr, +#ifdef PNG_sPLT_SUPPORTED +PNG_EXPORT(void,png_set_sPLT) PNGARG((png_structp png_ptr, png_infop info_ptr, png_sPLT_tp entries, int nentries)); #endif -#if defined(PNG_TEXT_SUPPORTED) +#ifdef PNG_TEXT_SUPPORTED /* png_get_text also returns the number of text chunks in *num_text */ -extern PNG_EXPORT(png_uint_32,png_get_text) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_text) PNGARG((png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr, int *num_text)); #endif -/* - * Note while png_set_text() will accept a structure whose text, - * language, and translated keywords are NULL pointers, the structure - * returned by png_get_text will always contain regular - * zero-terminated C strings. They might be empty strings but - * they will never be NULL pointers. +/* Note while png_set_text() will accept a structure whose text, + * language, and translated keywords are NULL pointers, the structure + * returned by png_get_text will always contain regular + * zero-terminated C strings. They might be empty strings but + * they will never be NULL pointers. */ -#if defined(PNG_TEXT_SUPPORTED) -extern PNG_EXPORT(void,png_set_text) PNGARG((png_structp png_ptr, +#ifdef PNG_TEXT_SUPPORTED +PNG_EXPORT(void,png_set_text) PNGARG((png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, int num_text)); #endif -#if defined(PNG_tIME_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_tIME) PNGARG((png_structp png_ptr, +#ifdef PNG_tIME_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_tIME) PNGARG((png_structp png_ptr, png_infop info_ptr, png_timep *mod_time)); #endif -#if defined(PNG_tIME_SUPPORTED) -extern PNG_EXPORT(void,png_set_tIME) PNGARG((png_structp png_ptr, +#ifdef PNG_tIME_SUPPORTED +PNG_EXPORT(void,png_set_tIME) PNGARG((png_structp png_ptr, png_infop info_ptr, png_timep mod_time)); #endif -#if defined(PNG_tRNS_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_tRNS) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytep *trans, int *num_trans, - png_color_16p *trans_values)); +#ifdef PNG_tRNS_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_tRNS) PNGARG((png_structp png_ptr, + png_infop info_ptr, png_bytep *trans_alpha, int *num_trans, + png_color_16p *trans_color)); #endif -#if defined(PNG_tRNS_SUPPORTED) -extern PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytep trans, int num_trans, - png_color_16p trans_values)); +#ifdef PNG_tRNS_SUPPORTED +PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr, + png_infop info_ptr, png_bytep trans_alpha, int num_trans, + png_color_16p trans_color)); #endif -#if defined(PNG_tRNS_SUPPORTED) +#ifdef PNG_tRNS_SUPPORTED #endif -#if defined(PNG_sCAL_SUPPORTED) +#ifdef PNG_sCAL_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_sCAL) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_sCAL) PNGARG((png_structp png_ptr, png_infop info_ptr, int *unit, double *width, double *height)); #else #ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_sCAL_s) PNGARG((png_structp png_ptr, +PNG_EXPORT(png_uint_32,png_get_sCAL_s) PNGARG((png_structp png_ptr, png_infop info_ptr, int *unit, png_charpp swidth, png_charpp sheight)); #endif #endif #endif /* PNG_sCAL_SUPPORTED */ -#if defined(PNG_sCAL_SUPPORTED) +#ifdef PNG_sCAL_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_sCAL) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_sCAL) PNGARG((png_structp png_ptr, png_infop info_ptr, int unit, double width, double height)); #else #ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr, +PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr, png_infop info_ptr, int unit, png_charp swidth, png_charp sheight)); #endif #endif #endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */ -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -/* provide a list of chunks and how they are to be handled, if the built-in +#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED +/* Provide a list of chunks and how they are to be handled, if the built-in handling or default unknown chunk handling is not desired. Any chunks not listed will be handled in the default manner. The IHDR and IEND chunks must not be listed. @@ -2460,96 +2470,47 @@ extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr, = 2: keep only if safe-to-copy = 3: keep even if unsafe-to-copy */ -extern PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp +PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp png_ptr, int keep, png_bytep chunk_list, int num_chunks)); -extern PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)); -extern PNG_EXPORT(void, png_set_unknown_chunk_location) - PNGARG((png_structp png_ptr, png_infop info_ptr, int chunk, int location)); -extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp - png_ptr, png_infop info_ptr, png_unknown_chunkpp entries)); -#endif -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep chunk_name)); #endif +#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED +PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr, + png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)); +PNG_EXPORT(void, png_set_unknown_chunk_location) + PNGARG((png_structp png_ptr, png_infop info_ptr, int chunk, int location)); +PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp + png_ptr, png_infop info_ptr, png_unknown_chunkpp entries)); +#endif /* Png_free_data() will turn off the "valid" flag for anything it frees. - If you need to turn it off for a chunk that your application has freed, - you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); */ -extern PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr, + * If you need to turn it off for a chunk that your application has freed, + * you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); + */ +PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr, png_infop info_ptr, int mask)); -#if defined(PNG_INFO_IMAGE_SUPPORTED) +#ifdef PNG_INFO_IMAGE_SUPPORTED /* The "params" pointer is currently not used and is for future expansion. */ -extern PNG_EXPORT(void, png_read_png) PNGARG((png_structp png_ptr, +PNG_EXPORT(void, png_read_png) PNGARG((png_structp png_ptr, png_infop info_ptr, int transforms, png_voidp params)); -extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr, +PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr, png_infop info_ptr, int transforms, png_voidp params)); #endif -/* Define PNG_DEBUG at compile time for debugging information. Higher - * numbers for PNG_DEBUG mean more debugging information. This has - * only been added since version 0.95 so it is not implemented throughout - * libpng yet, but more support will be added as needed. - */ -#ifdef PNG_DEBUG -#if (PNG_DEBUG > 0) -#if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) -#include -#if (PNG_DEBUG > 1) -#define png_debug(l,m) _RPT0(_CRT_WARN,m) -#define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m,p1) -#define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m,p1,p2) -#endif -#else /* PNG_DEBUG_FILE || !_MSC_VER */ -#ifndef PNG_DEBUG_FILE -#define PNG_DEBUG_FILE stderr -#endif /* PNG_DEBUG_FILE */ -#if (PNG_DEBUG > 1) -#define png_debug(l,m) \ -{ \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \ -} -#define png_debug1(l,m,p1) \ -{ \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \ -} -#define png_debug2(l,m,p1,p2) \ -{ \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \ -} -#endif /* (PNG_DEBUG > 1) */ -#endif /* _MSC_VER */ -#endif /* (PNG_DEBUG > 0) */ -#endif /* PNG_DEBUG */ -#ifndef png_debug -#define png_debug(l, m) -#endif -#ifndef png_debug1 -#define png_debug1(l, m, p1) -#endif -#ifndef png_debug2 -#define png_debug2(l, m, p1, p2) -#endif - -extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr)); +PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr)); +PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr)); +PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp + png_ptr)); +PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr)); #ifdef PNG_MNG_FEATURES_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp +PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp png_ptr, png_uint_32 mng_features_permitted)); #endif @@ -2559,93 +2520,78 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp #define PNG_HANDLE_CHUNK_IF_SAFE 2 #define PNG_HANDLE_CHUNK_ALWAYS 3 -/* Added to version 1.2.0 */ -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -#if defined(PNG_MMX_CODE_SUPPORTED) -#define PNG_ASM_FLAG_MMX_SUPPORT_COMPILED 0x01 /* not user-settable */ -#define PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU 0x02 /* not user-settable */ -#define PNG_ASM_FLAG_MMX_READ_COMBINE_ROW 0x04 -#define PNG_ASM_FLAG_MMX_READ_INTERLACE 0x08 -#define PNG_ASM_FLAG_MMX_READ_FILTER_SUB 0x10 -#define PNG_ASM_FLAG_MMX_READ_FILTER_UP 0x20 -#define PNG_ASM_FLAG_MMX_READ_FILTER_AVG 0x40 -#define PNG_ASM_FLAG_MMX_READ_FILTER_PAETH 0x80 -#define PNG_ASM_FLAGS_INITIALIZED 0x80000000 /* not user-settable */ - -#define PNG_MMX_READ_FLAGS ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ - | PNG_ASM_FLAG_MMX_READ_INTERLACE \ - | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ - | PNG_ASM_FLAG_MMX_READ_FILTER_UP \ - | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ - | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ) -#define PNG_MMX_WRITE_FLAGS ( 0 ) - -#define PNG_MMX_FLAGS ( PNG_ASM_FLAG_MMX_SUPPORT_COMPILED \ - | PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU \ - | PNG_MMX_READ_FLAGS \ - | PNG_MMX_WRITE_FLAGS ) - -#define PNG_SELECT_READ 1 -#define PNG_SELECT_WRITE 2 -#endif /* PNG_MMX_CODE_SUPPORTED */ - -#if !defined(PNG_1_0_X) -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_mmx_flagmask) - PNGARG((int flag_select, int *compilerID)); - -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_asm_flagmask) - PNGARG((int flag_select)); - -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_asm_flags) - PNGARG((png_structp png_ptr)); - -/* pngget.c */ -extern PNG_EXPORT(png_byte,png_get_mmx_bitdepth_threshold) - PNGARG((png_structp png_ptr)); - -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_mmx_rowbytes_threshold) - PNGARG((png_structp png_ptr)); - -/* pngset.c */ -extern PNG_EXPORT(void,png_set_asm_flags) - PNGARG((png_structp png_ptr, png_uint_32 asm_flags)); - -/* pngset.c */ -extern PNG_EXPORT(void,png_set_mmx_thresholds) - PNGARG((png_structp png_ptr, png_byte mmx_bitdepth_threshold, - png_uint_32 mmx_rowbytes_threshold)); - -#endif /* PNG_1_0_X */ - -#if !defined(PNG_1_0_X) -/* png.c, pnggccrd.c, or pngvcrd.c */ -extern PNG_EXPORT(int,png_mmx_support) PNGARG((void)); -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - /* Strip the prepended error numbers ("#nnn ") from error and warning - * messages before passing them to the error or warning handler. */ + * messages before passing them to the error or warning handler. + */ #ifdef PNG_ERROR_NUMBERS_SUPPORTED -extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp +PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp png_ptr, png_uint_32 strip_mode)); #endif -#endif /* PNG_1_0_X */ - -/* Added at libpng-1.2.6 */ +/* Added in libpng-1.2.6 */ #ifdef PNG_SET_USER_LIMITS_SUPPORTED -extern PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp +PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp png_ptr, png_uint_32 user_width_max, png_uint_32 user_height_max)); -extern PNG_EXPORT(png_uint_32,png_get_user_width_max) PNGARG((png_structp +PNG_EXPORT(png_uint_32,png_get_user_width_max) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp +PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp png_ptr)); +/* Added in libpng-1.4.0 */ +PNG_EXPORT(void,png_set_chunk_cache_max) PNGARG((png_structp + png_ptr, png_uint_32 user_chunk_cache_max)); +PNG_EXPORT(png_uint_32,png_get_chunk_cache_max) + PNGARG((png_structp png_ptr)); +/* Added in libpng-1.4.1 */ +PNG_EXPORT(void,png_set_chunk_malloc_max) PNGARG((png_structp + png_ptr, png_alloc_size_t user_chunk_cache_max)); +PNG_EXPORT(png_alloc_size_t,png_get_chunk_malloc_max) + PNGARG((png_structp png_ptr)); #endif -/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */ +#if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED) +PNG_EXPORT(png_uint_32,png_get_pixels_per_inch) PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +PNG_EXPORT(png_uint_32,png_get_x_pixels_per_inch) PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +PNG_EXPORT(png_uint_32,png_get_y_pixels_per_inch) PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +PNG_EXPORT(float,png_get_x_offset_inches) PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +PNG_EXPORT(float,png_get_y_offset_inches) PNGARG((png_structp png_ptr, +png_infop info_ptr)); + +#ifdef PNG_pHYs_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_pHYs_dpi) PNGARG((png_structp png_ptr, +png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); +#endif /* PNG_pHYs_SUPPORTED */ +#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */ + +/* Added in libpng-1.4.0 */ +#ifdef PNG_IO_STATE_SUPPORTED +PNG_EXPORT(png_uint_32,png_get_io_state) PNGARG((png_structp png_ptr)); + +PNG_EXPORT(png_bytep,png_get_io_chunk_name) + PNGARG((png_structp png_ptr)); + +/* The flags returned by png_get_io_state() are the following: */ +#define PNG_IO_NONE 0x0000 /* no I/O at this moment */ +#define PNG_IO_READING 0x0001 /* currently reading */ +#define PNG_IO_WRITING 0x0002 /* currently writing */ +#define PNG_IO_SIGNATURE 0x0010 /* currently at the file signature */ +#define PNG_IO_CHUNK_HDR 0x0020 /* currently at the chunk header */ +#define PNG_IO_CHUNK_DATA 0x0040 /* currently at the chunk data */ +#define PNG_IO_CHUNK_CRC 0x0080 /* currently at the chunk crc */ +#define PNG_IO_MASK_OP 0x000f /* current operation: reading/writing */ +#define PNG_IO_MASK_LOC 0x00f0 /* current location: sig/hdr/data/crc */ +#endif /* ?PNG_IO_STATE_SUPPORTED */ + +/* Maintainer: Put new public prototypes here ^, in libpng.3, and project + * defs + */ #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED /* With these routines we avoid an integer divide, which will be slower on @@ -2662,19 +2608,21 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp /* fg and bg should be in `gamma 1.0' space; alpha is the opacity */ -# define png_composite(composite, fg, alpha, bg) \ - { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) * (png_uint_16)(alpha) \ - + (png_uint_16)(bg)*(png_uint_16)(255 - \ - (png_uint_16)(alpha)) + (png_uint_16)128); \ +# define png_composite(composite, fg, alpha, bg) \ + { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) \ + * (png_uint_16)(alpha) \ + + (png_uint_16)(bg)*(png_uint_16)(255 \ + - (png_uint_16)(alpha)) + (png_uint_16)128); \ (composite) = (png_byte)((temp + (temp >> 8)) >> 8); } -# define png_composite_16(composite, fg, alpha, bg) \ - { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) * (png_uint_32)(alpha) \ - + (png_uint_32)(bg)*(png_uint_32)(65535L - \ - (png_uint_32)(alpha)) + (png_uint_32)32768L); \ +# define png_composite_16(composite, fg, alpha, bg) \ + { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) \ + * (png_uint_32)(alpha) \ + + (png_uint_32)(bg)*(png_uint_32)(65535L \ + - (png_uint_32)(alpha)) + (png_uint_32)32768L); \ (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); } -#else /* standard method using integer division */ +#else /* Standard method using integer division */ # define png_composite(composite, fg, alpha, bg) \ (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \ @@ -2685,885 +2633,67 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp (composite) = (png_uint_16)(((png_uint_32)(fg) * (png_uint_32)(alpha) + \ (png_uint_32)(bg)*(png_uint_32)(65535L - (png_uint_32)(alpha)) + \ (png_uint_32)32767) / (png_uint_32)65535L) - #endif /* PNG_READ_COMPOSITE_NODIV_SUPPORTED */ -/* Inline macros to do direct reads of bytes from the input buffer. These - * require that you are using an architecture that uses PNG byte ordering - * (MSB first) and supports unaligned data storage. I think that PowerPC - * in big-endian mode and 680x0 are the only ones that will support this. - * The x86 line of processors definitely do not. The png_get_int_32() - * routine also assumes we are using two's complement format for negative - * values, which is almost certainly true. +#ifdef PNG_USE_READ_MACROS +/* Inline macros to do direct reads of bytes from the input buffer. + * The png_get_int_32() routine assumes we are using two's complement + * format for negative values, which is almost certainly true. */ -#if defined(PNG_READ_BIG_ENDIAN_SUPPORTED) -# define png_get_uint_32(buf) ( *((png_uint_32p) (buf))) -# define png_get_uint_16(buf) ( *((png_uint_16p) (buf))) -# define png_get_int_32(buf) ( *((png_int_32p) (buf))) +# define png_get_uint_32(buf) \ + (((png_uint_32)(*(buf)) << 24) + \ + ((png_uint_32)(*((buf) + 1)) << 16) + \ + ((png_uint_32)(*((buf) + 2)) << 8) + \ + ((png_uint_32)(*((buf) + 3)))) +# define png_get_uint_16(buf) \ + (((png_uint_32)(*(buf)) << 8) + \ + ((png_uint_32)(*((buf) + 1)))) +# define png_get_int_32(buf) \ + ((png_int_32)((*(buf) & 0x80) \ + ? -((png_int_32)((png_get_uint_32(buf) ^ 0xffffffff)+1)) \ + : (png_int_32)png_get_uint_32(buf))) #else -extern PNG_EXPORT(png_uint_32,png_get_uint_32) PNGARG((png_bytep buf)); -extern PNG_EXPORT(png_uint_16,png_get_uint_16) PNGARG((png_bytep buf)); -extern PNG_EXPORT(png_int_32,png_get_int_32) PNGARG((png_bytep buf)); -#endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */ -extern PNG_EXPORT(png_uint_32,png_get_uint_31) +PNG_EXPORT(png_uint_32,png_get_uint_32) PNGARG((png_bytep buf)); +PNG_EXPORT(png_uint_16,png_get_uint_16) PNGARG((png_bytep buf)); +#ifdef PNG_GET_INT_32_SUPPORTED +PNG_EXPORT(png_int_32,png_get_int_32) PNGARG((png_bytep buf)); +#endif +#endif +PNG_EXPORT(png_uint_32,png_get_uint_31) PNGARG((png_structp png_ptr, png_bytep buf)); /* No png_get_int_16 -- may be added if there's a real need for it. */ -/* Place a 32-bit number into a buffer in PNG byte order (big-endian). - */ -extern PNG_EXPORT(void,png_save_uint_32) +/* Place a 32-bit number into a buffer in PNG byte order (big-endian). */ +PNG_EXPORT(void,png_save_uint_32) PNGARG((png_bytep buf, png_uint_32 i)); -extern PNG_EXPORT(void,png_save_int_32) +PNG_EXPORT(void,png_save_int_32) PNGARG((png_bytep buf, png_int_32 i)); /* Place a 16-bit number into a buffer in PNG byte order. * The parameter is declared unsigned int, not png_uint_16, * just to avoid potential problems on pre-ANSI C compilers. */ -extern PNG_EXPORT(void,png_save_uint_16) +PNG_EXPORT(void,png_save_uint_16) PNGARG((png_bytep buf, unsigned int i)); /* No png_save_int_16 -- may be added if there's a real need for it. */ /* ************************************************************************* */ -/* These next functions are used internally in the code. They generally - * shouldn't be used unless you are writing code to add or replace some - * functionality in libpng. More information about most functions can - * be found in the files where the functions are located. - */ - - -/* Various modes of operation, that are visible to applications because - * they are used for unknown chunk location. +/* Various modes of operation. Note that after an init, mode is set to + * zero automatically when the structure is created. */ #define PNG_HAVE_IHDR 0x01 #define PNG_HAVE_PLTE 0x02 #define PNG_HAVE_IDAT 0x04 #define PNG_AFTER_IDAT 0x08 /* Have complete zlib datastream */ #define PNG_HAVE_IEND 0x10 - -#if defined(PNG_INTERNAL) - -/* More modes of operation. Note that after an init, mode is set to - * zero automatically when the structure is created. - */ #define PNG_HAVE_gAMA 0x20 #define PNG_HAVE_cHRM 0x40 -#define PNG_HAVE_sRGB 0x80 -#define PNG_HAVE_CHUNK_HEADER 0x100 -#define PNG_WROTE_tIME 0x200 -#define PNG_WROTE_INFO_BEFORE_PLTE 0x400 -#define PNG_BACKGROUND_IS_GRAY 0x800 -#define PNG_HAVE_PNG_SIGNATURE 0x1000 -#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ - -/* flags for the transformations the PNG library does on the image data */ -#define PNG_BGR 0x0001 -#define PNG_INTERLACE 0x0002 -#define PNG_PACK 0x0004 -#define PNG_SHIFT 0x0008 -#define PNG_SWAP_BYTES 0x0010 -#define PNG_INVERT_MONO 0x0020 -#define PNG_DITHER 0x0040 -#define PNG_BACKGROUND 0x0080 -#define PNG_BACKGROUND_EXPAND 0x0100 - /* 0x0200 unused */ -#define PNG_16_TO_8 0x0400 -#define PNG_RGBA 0x0800 -#define PNG_EXPAND 0x1000 -#define PNG_GAMMA 0x2000 -#define PNG_GRAY_TO_RGB 0x4000 -#define PNG_FILLER 0x8000L -#define PNG_PACKSWAP 0x10000L -#define PNG_SWAP_ALPHA 0x20000L -#define PNG_STRIP_ALPHA 0x40000L -#define PNG_INVERT_ALPHA 0x80000L -#define PNG_USER_TRANSFORM 0x100000L -#define PNG_RGB_TO_GRAY_ERR 0x200000L -#define PNG_RGB_TO_GRAY_WARN 0x400000L -#define PNG_RGB_TO_GRAY 0x600000L /* two bits, RGB_TO_GRAY_ERR|WARN */ - /* 0x800000L Unused */ -#define PNG_ADD_ALPHA 0x1000000L /* Added to libpng-1.2.7 */ -#define PNG_EXPAND_tRNS 0x2000000L /* Added to libpng-1.2.9 */ - /* 0x4000000L unused */ - /* 0x8000000L unused */ - /* 0x10000000L unused */ - /* 0x20000000L unused */ - /* 0x40000000L unused */ - -/* flags for png_create_struct */ -#define PNG_STRUCT_PNG 0x0001 -#define PNG_STRUCT_INFO 0x0002 - -/* Scaling factor for filter heuristic weighting calculations */ -#define PNG_WEIGHT_SHIFT 8 -#define PNG_WEIGHT_FACTOR (1<<(PNG_WEIGHT_SHIFT)) -#define PNG_COST_SHIFT 3 -#define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT)) - -/* flags for the png_ptr->flags rather than declaring a byte for each one */ -#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 -#define PNG_FLAG_ZLIB_CUSTOM_LEVEL 0x0002 -#define PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL 0x0004 -#define PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS 0x0008 -#define PNG_FLAG_ZLIB_CUSTOM_METHOD 0x0010 -#define PNG_FLAG_ZLIB_FINISHED 0x0020 -#define PNG_FLAG_ROW_INIT 0x0040 -#define PNG_FLAG_FILLER_AFTER 0x0080 -#define PNG_FLAG_CRC_ANCILLARY_USE 0x0100 -#define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200 -#define PNG_FLAG_CRC_CRITICAL_USE 0x0400 -#define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800 -#define PNG_FLAG_FREE_PLTE 0x1000 -#define PNG_FLAG_FREE_TRNS 0x2000 -#define PNG_FLAG_FREE_HIST 0x4000 -#define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000L -#define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000L -#define PNG_FLAG_LIBRARY_MISMATCH 0x20000L -#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000L -#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000L -#define PNG_FLAG_MALLOC_NULL_MEM_OK 0x100000L -#define PNG_FLAG_ADD_ALPHA 0x200000L /* Added to libpng-1.2.8 */ -#define PNG_FLAG_STRIP_ALPHA 0x400000L /* Added to libpng-1.2.8 */ - /* 0x800000L unused */ - /* 0x1000000L unused */ - /* 0x2000000L unused */ - /* 0x4000000L unused */ - /* 0x8000000L unused */ - /* 0x10000000L unused */ - /* 0x20000000L unused */ - /* 0x40000000L unused */ - -#define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \ - PNG_FLAG_CRC_ANCILLARY_NOWARN) - -#define PNG_FLAG_CRC_CRITICAL_MASK (PNG_FLAG_CRC_CRITICAL_USE | \ - PNG_FLAG_CRC_CRITICAL_IGNORE) - -#define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \ - PNG_FLAG_CRC_CRITICAL_MASK) - -/* save typing and make code easier to understand */ - -#define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \ - abs((int)((c1).green) - (int)((c2).green)) + \ - abs((int)((c1).blue) - (int)((c2).blue))) - -/* Added to libpng-1.2.6 JB */ -#define PNG_ROWBYTES(pixel_bits, width) \ - ((pixel_bits) >= 8 ? \ - ((width) * (((png_uint_32)(pixel_bits)) >> 3)) : \ - (( ((width) * ((png_uint_32)(pixel_bits))) + 7) >> 3) ) - -/* PNG_OUT_OF_RANGE returns true if value is outside the range - ideal-delta..ideal+delta. Each argument is evaluated twice. - "ideal" and "delta" should be constants, normally simple - integers, "value" a variable. Added to libpng-1.2.6 JB */ -#define PNG_OUT_OF_RANGE(value, ideal, delta) \ - ( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) ) - -/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */ -#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) -/* place to hold the signature string for a PNG file. */ -#ifdef PNG_USE_GLOBAL_ARRAYS - PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sig[8]; -#else -#endif -#endif /* PNG_NO_EXTERN */ - -/* Constant strings for known chunk types. If you need to add a chunk, - * define the name here, and add an invocation of the macro in png.c and - * wherever it's needed. - */ -#define PNG_IHDR png_byte png_IHDR[5] = { 73, 72, 68, 82, '\0'} -#define PNG_IDAT png_byte png_IDAT[5] = { 73, 68, 65, 84, '\0'} -#define PNG_IEND png_byte png_IEND[5] = { 73, 69, 78, 68, '\0'} -#define PNG_PLTE png_byte png_PLTE[5] = { 80, 76, 84, 69, '\0'} -#define PNG_bKGD png_byte png_bKGD[5] = { 98, 75, 71, 68, '\0'} -#define PNG_cHRM png_byte png_cHRM[5] = { 99, 72, 82, 77, '\0'} -#define PNG_gAMA png_byte png_gAMA[5] = {103, 65, 77, 65, '\0'} -#define PNG_hIST png_byte png_hIST[5] = {104, 73, 83, 84, '\0'} -#define PNG_iCCP png_byte png_iCCP[5] = {105, 67, 67, 80, '\0'} -#define PNG_iTXt png_byte png_iTXt[5] = {105, 84, 88, 116, '\0'} -#define PNG_oFFs png_byte png_oFFs[5] = {111, 70, 70, 115, '\0'} -#define PNG_pCAL png_byte png_pCAL[5] = {112, 67, 65, 76, '\0'} -#define PNG_sCAL png_byte png_sCAL[5] = {115, 67, 65, 76, '\0'} -#define PNG_pHYs png_byte png_pHYs[5] = {112, 72, 89, 115, '\0'} -#define PNG_sBIT png_byte png_sBIT[5] = {115, 66, 73, 84, '\0'} -#define PNG_sPLT png_byte png_sPLT[5] = {115, 80, 76, 84, '\0'} -#define PNG_sRGB png_byte png_sRGB[5] = {115, 82, 71, 66, '\0'} -#define PNG_tEXt png_byte png_tEXt[5] = {116, 69, 88, 116, '\0'} -#define PNG_tIME png_byte png_tIME[5] = {116, 73, 77, 69, '\0'} -#define PNG_tRNS png_byte png_tRNS[5] = {116, 82, 78, 83, '\0'} -#define PNG_zTXt png_byte png_zTXt[5] = {122, 84, 88, 116, '\0'} - -#ifdef PNG_USE_GLOBAL_ARRAYS -PNG_EXPORT_VAR (png_byte FARDATA) png_IHDR[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_IDAT[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_IEND[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_PLTE[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_bKGD[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_cHRM[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_gAMA[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_hIST[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_iCCP[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_iTXt[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_oFFs[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_pCAL[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_sCAL[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_pHYs[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_sBIT[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_sPLT[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_sRGB[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_tEXt[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_tIME[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_tRNS[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_zTXt[5]; -#endif /* PNG_USE_GLOBAL_ARRAYS */ - -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Initialize png_ptr struct for reading, and allocate any other memory. - * (old interface - DEPRECATED - use png_create_read_struct instead). - */ -extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr)); -#undef png_read_init -#define png_read_init(png_ptr) png_read_init_3(&png_ptr, \ - PNG_LIBPNG_VER_STRING, png_sizeof(png_struct)); -#endif - -extern PNG_EXPORT(void,png_read_init_3) PNGARG((png_structpp ptr_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size)); -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t - png_info_size)); -#endif - -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Initialize png_ptr struct for writing, and allocate any other memory. - * (old interface - DEPRECATED - use png_create_write_struct instead). - */ -extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr)); -#undef png_write_init -#define png_write_init(png_ptr) png_write_init_3(&png_ptr, \ - PNG_LIBPNG_VER_STRING, png_sizeof(png_struct)); -#endif - -extern PNG_EXPORT(void,png_write_init_3) PNGARG((png_structpp ptr_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size)); -extern PNG_EXPORT(void,png_write_init_2) PNGARG((png_structp png_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t - png_info_size)); - -/* Allocate memory for an internal libpng struct */ -PNG_EXTERN png_voidp png_create_struct PNGARG((int type)); - -/* Free memory from internal libpng struct */ -PNG_EXTERN void png_destroy_struct PNGARG((png_voidp struct_ptr)); - -PNG_EXTERN png_voidp png_create_struct_2 PNGARG((int type, png_malloc_ptr - malloc_fn, png_voidp mem_ptr)); -PNG_EXTERN void png_destroy_struct_2 PNGARG((png_voidp struct_ptr, - png_free_ptr free_fn, png_voidp mem_ptr)); - -/* Free any memory that info_ptr points to and reset struct. */ -PNG_EXTERN void png_info_destroy PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -#ifndef PNG_1_0_X -/* Function to allocate memory for zlib. */ -PNG_EXTERN voidpf png_zalloc PNGARG((voidpf png_ptr, uInt items, uInt size)); - -/* Function to free memory for zlib */ -PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr)); - -#ifdef PNG_SIZE_T -/* Function to convert a sizeof an item to png_sizeof item */ - PNG_EXTERN png_size_t PNGAPI png_convert_size PNGARG((size_t size)); -#endif - -/* Next four functions are used internally as callbacks. PNGAPI is required - * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. */ - -PNG_EXTERN void PNGAPI png_default_read_data PNGARG((png_structp png_ptr, - png_bytep data, png_size_t length)); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_EXTERN void PNGAPI png_push_fill_buffer PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t length)); -#endif - -PNG_EXTERN void PNGAPI png_default_write_data PNGARG((png_structp png_ptr, - png_bytep data, png_size_t length)); - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -#if !defined(PNG_NO_STDIO) -PNG_EXTERN void PNGAPI png_default_flush PNGARG((png_structp png_ptr)); -#endif -#endif -#else /* PNG_1_0_X */ -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_EXTERN void png_push_fill_buffer PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t length)); -#endif -#endif /* PNG_1_0_X */ - -/* Reset the CRC variable */ -PNG_EXTERN void png_reset_crc PNGARG((png_structp png_ptr)); - -/* Write the "data" buffer to whatever output you are using. */ -PNG_EXTERN void png_write_data PNGARG((png_structp png_ptr, png_bytep data, - png_size_t length)); - -/* Read data from whatever input you are using into the "data" buffer */ -PNG_EXTERN void png_read_data PNGARG((png_structp png_ptr, png_bytep data, - png_size_t length)); - -/* Read bytes into buf, and update png_ptr->crc */ -PNG_EXTERN void png_crc_read PNGARG((png_structp png_ptr, png_bytep buf, - png_size_t length)); - -/* Decompress data in a chunk that uses compression */ -#if defined(PNG_zTXt_SUPPORTED) || defined(PNG_iTXt_SUPPORTED) || \ - defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) -PNG_EXTERN png_charp png_decompress_chunk PNGARG((png_structp png_ptr, - int comp_type, png_charp chunkdata, png_size_t chunklength, - png_size_t prefix_length, png_size_t *data_length)); -#endif - -/* Read "skip" bytes, read the file crc, and (optionally) verify png_ptr->crc */ -PNG_EXTERN int png_crc_finish PNGARG((png_structp png_ptr, png_uint_32 skip)); - -/* Read the CRC from the file and compare it to the libpng calculated CRC */ -PNG_EXTERN int png_crc_error PNGARG((png_structp png_ptr)); - -/* Calculate the CRC over a section of data. Note that we are only - * passing a maximum of 64K on systems that have this as a memory limit, - * since this is the maximum buffer size we can specify. - */ -PNG_EXTERN void png_calculate_crc PNGARG((png_structp png_ptr, png_bytep ptr, - png_size_t length)); - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -PNG_EXTERN void png_flush PNGARG((png_structp png_ptr)); -#endif - -/* simple function to write the signature */ -PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr)); - -/* write various chunks */ - -/* Write the IHDR chunk, and update the png_struct with the necessary - * information. - */ -PNG_EXTERN void png_write_IHDR PNGARG((png_structp png_ptr, png_uint_32 width, - png_uint_32 height, - int bit_depth, int color_type, int compression_method, int filter_method, - int interlace_method)); - -PNG_EXTERN void png_write_PLTE PNGARG((png_structp png_ptr, png_colorp palette, - png_uint_32 num_pal)); - -PNG_EXTERN void png_write_IDAT PNGARG((png_structp png_ptr, png_bytep data, - png_size_t length)); - -PNG_EXTERN void png_write_IEND PNGARG((png_structp png_ptr)); - -#if defined(PNG_WRITE_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -PNG_EXTERN void png_write_gAMA PNGARG((png_structp png_ptr, double file_gamma)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_EXTERN void png_write_gAMA_fixed PNGARG((png_structp png_ptr, png_fixed_point - file_gamma)); -#endif -#endif - -#if defined(PNG_WRITE_sBIT_SUPPORTED) -PNG_EXTERN void png_write_sBIT PNGARG((png_structp png_ptr, png_color_8p sbit, - int color_type)); -#endif - -#if defined(PNG_WRITE_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -PNG_EXTERN void png_write_cHRM PNGARG((png_structp png_ptr, - double white_x, double white_y, - double red_x, double red_y, double green_x, double green_y, - double blue_x, double blue_y)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_EXTERN void png_write_cHRM_fixed PNGARG((png_structp png_ptr, - png_fixed_point int_white_x, png_fixed_point int_white_y, - png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point - int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, - png_fixed_point int_blue_y)); -#endif -#endif - -#if defined(PNG_WRITE_sRGB_SUPPORTED) -PNG_EXTERN void png_write_sRGB PNGARG((png_structp png_ptr, - int intent)); -#endif - -#if defined(PNG_WRITE_iCCP_SUPPORTED) -PNG_EXTERN void png_write_iCCP PNGARG((png_structp png_ptr, - png_charp name, int compression_type, - png_charp profile, int proflen)); - /* Note to maintainer: profile should be png_bytep */ -#endif - -#if defined(PNG_WRITE_sPLT_SUPPORTED) -PNG_EXTERN void png_write_sPLT PNGARG((png_structp png_ptr, - png_sPLT_tp palette)); -#endif - -#if defined(PNG_WRITE_tRNS_SUPPORTED) -PNG_EXTERN void png_write_tRNS PNGARG((png_structp png_ptr, png_bytep trans, - png_color_16p values, int number, int color_type)); -#endif - -#if defined(PNG_WRITE_bKGD_SUPPORTED) -PNG_EXTERN void png_write_bKGD PNGARG((png_structp png_ptr, - png_color_16p values, int color_type)); -#endif - -#if defined(PNG_WRITE_hIST_SUPPORTED) -PNG_EXTERN void png_write_hIST PNGARG((png_structp png_ptr, png_uint_16p hist, - int num_hist)); -#endif - -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED) || \ - defined(PNG_WRITE_iCCP_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) -PNG_EXTERN png_size_t png_check_keyword PNGARG((png_structp png_ptr, - png_charp key, png_charpp new_key)); -#endif - -#if defined(PNG_WRITE_tEXt_SUPPORTED) -PNG_EXTERN void png_write_tEXt PNGARG((png_structp png_ptr, png_charp key, - png_charp text, png_size_t text_len)); -#endif - -#if defined(PNG_WRITE_zTXt_SUPPORTED) -PNG_EXTERN void png_write_zTXt PNGARG((png_structp png_ptr, png_charp key, - png_charp text, png_size_t text_len, int compression)); -#endif - -#if defined(PNG_WRITE_iTXt_SUPPORTED) -PNG_EXTERN void png_write_iTXt PNGARG((png_structp png_ptr, - int compression, png_charp key, png_charp lang, png_charp lang_key, - png_charp text)); -#endif - -#if defined(PNG_TEXT_SUPPORTED) /* Added at version 1.0.14 and 1.2.4 */ -PNG_EXTERN int png_set_text_2 PNGARG((png_structp png_ptr, - png_infop info_ptr, png_textp text_ptr, int num_text)); -#endif - -#if defined(PNG_WRITE_oFFs_SUPPORTED) -PNG_EXTERN void png_write_oFFs PNGARG((png_structp png_ptr, - png_int_32 x_offset, png_int_32 y_offset, int unit_type)); -#endif - -#if defined(PNG_WRITE_pCAL_SUPPORTED) -PNG_EXTERN void png_write_pCAL PNGARG((png_structp png_ptr, png_charp purpose, - png_int_32 X0, png_int_32 X1, int type, int nparams, - png_charp units, png_charpp params)); -#endif - -#if defined(PNG_WRITE_pHYs_SUPPORTED) -PNG_EXTERN void png_write_pHYs PNGARG((png_structp png_ptr, - png_uint_32 x_pixels_per_unit, png_uint_32 y_pixels_per_unit, - int unit_type)); -#endif - -#if defined(PNG_WRITE_tIME_SUPPORTED) -PNG_EXTERN void png_write_tIME PNGARG((png_structp png_ptr, - png_timep mod_time)); -#endif - -#if defined(PNG_WRITE_sCAL_SUPPORTED) -#if defined(PNG_FLOATING_POINT_SUPPORTED) && !defined(PNG_NO_STDIO) -PNG_EXTERN void png_write_sCAL PNGARG((png_structp png_ptr, - int unit, double width, double height)); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_EXTERN void png_write_sCAL_s PNGARG((png_structp png_ptr, - int unit, png_charp width, png_charp height)); -#endif -#endif -#endif - -/* Called when finished processing a row of data */ -PNG_EXTERN void png_write_finish_row PNGARG((png_structp png_ptr)); - -/* Internal use only. Called before first row of data */ -PNG_EXTERN void png_write_start_row PNGARG((png_structp png_ptr)); - -#if defined(PNG_READ_GAMMA_SUPPORTED) -PNG_EXTERN void png_build_gamma_table PNGARG((png_structp png_ptr)); -#endif - -/* combine a row of data, dealing with alpha, etc. if requested */ -PNG_EXTERN void png_combine_row PNGARG((png_structp png_ptr, png_bytep row, - int mask)); - -#if defined(PNG_READ_INTERLACING_SUPPORTED) -/* expand an interlaced row */ -/* OLD pre-1.0.9 interface: -PNG_EXTERN void png_do_read_interlace PNGARG((png_row_infop row_info, - png_bytep row, int pass, png_uint_32 transformations)); - */ -PNG_EXTERN void png_do_read_interlace PNGARG((png_structp png_ptr)); -#endif - -/* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */ - -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) -/* grab pixels out of a row for an interlaced pass */ -PNG_EXTERN void png_do_write_interlace PNGARG((png_row_infop row_info, - png_bytep row, int pass)); -#endif - -/* unfilter a row */ -PNG_EXTERN void png_read_filter_row PNGARG((png_structp png_ptr, - png_row_infop row_info, png_bytep row, png_bytep prev_row, int filter)); - -/* Choose the best filter to use and filter the row data */ -PNG_EXTERN void png_write_find_filter PNGARG((png_structp png_ptr, - png_row_infop row_info)); - -/* Write out the filtered row. */ -PNG_EXTERN void png_write_filtered_row PNGARG((png_structp png_ptr, - png_bytep filtered_row)); -/* finish a row while reading, dealing with interlacing passes, etc. */ -PNG_EXTERN void png_read_finish_row PNGARG((png_structp png_ptr)); - -/* initialize the row buffers, etc. */ -PNG_EXTERN void png_read_start_row PNGARG((png_structp png_ptr)); -/* optional call to update the users info structure */ -PNG_EXTERN void png_read_transform_info PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -/* these are the functions that do the transformations */ -#if defined(PNG_READ_FILLER_SUPPORTED) -PNG_EXTERN void png_do_read_filler PNGARG((png_row_infop row_info, - png_bytep row, png_uint_32 filler, png_uint_32 flags)); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_read_swap_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_write_swap_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_read_invert_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_write_invert_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ - defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_strip_filler PNGARG((png_row_infop row_info, - png_bytep row, png_uint_32 flags)); -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -PNG_EXTERN void png_do_swap PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED) -PNG_EXTERN void png_do_packswap PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -PNG_EXTERN int png_do_rgb_to_gray PNGARG((png_structp png_ptr, png_row_infop - row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) -PNG_EXTERN void png_do_gray_to_rgb PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) -PNG_EXTERN void png_do_unpack PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) -PNG_EXTERN void png_do_unshift PNGARG((png_row_infop row_info, png_bytep row, - png_color_8p sig_bits)); -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -PNG_EXTERN void png_do_invert PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) -PNG_EXTERN void png_do_chop PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) -PNG_EXTERN void png_do_dither PNGARG((png_row_infop row_info, - png_bytep row, png_bytep palette_lookup, png_bytep dither_lookup)); - -# if defined(PNG_CORRECT_PALETTE_SUPPORTED) -PNG_EXTERN void png_correct_palette PNGARG((png_structp png_ptr, - png_colorp palette, int num_palette)); -# endif -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -PNG_EXTERN void png_do_bgr PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_WRITE_PACK_SUPPORTED) -PNG_EXTERN void png_do_pack PNGARG((png_row_infop row_info, - png_bytep row, png_uint_32 bit_depth)); -#endif - -#if defined(PNG_WRITE_SHIFT_SUPPORTED) -PNG_EXTERN void png_do_shift PNGARG((png_row_infop row_info, png_bytep row, - png_color_8p bit_depth)); -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) -#if defined(PNG_READ_GAMMA_SUPPORTED) -PNG_EXTERN void png_do_background PNGARG((png_row_infop row_info, png_bytep row, - png_color_16p trans_values, png_color_16p background, - png_color_16p background_1, - png_bytep gamma_table, png_bytep gamma_from_1, png_bytep gamma_to_1, - png_uint_16pp gamma_16, png_uint_16pp gamma_16_from_1, - png_uint_16pp gamma_16_to_1, int gamma_shift)); -#else -PNG_EXTERN void png_do_background PNGARG((png_row_infop row_info, png_bytep row, - png_color_16p trans_values, png_color_16p background)); -#endif -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) -PNG_EXTERN void png_do_gamma PNGARG((png_row_infop row_info, png_bytep row, - png_bytep gamma_table, png_uint_16pp gamma_16_table, - int gamma_shift)); -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) -PNG_EXTERN void png_do_expand_palette PNGARG((png_row_infop row_info, - png_bytep row, png_colorp palette, png_bytep trans, int num_trans)); -PNG_EXTERN void png_do_expand PNGARG((png_row_infop row_info, - png_bytep row, png_color_16p trans_value)); -#endif - -/* The following decodes the appropriate chunks, and does error correction, - * then calls the appropriate callback for the chunk if it is valid. - */ - -/* decode the IHDR chunk */ -PNG_EXTERN void png_handle_IHDR PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -PNG_EXTERN void png_handle_PLTE PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -PNG_EXTERN void png_handle_IEND PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); - -#if defined(PNG_READ_bKGD_SUPPORTED) -PNG_EXTERN void png_handle_bKGD PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_cHRM_SUPPORTED) -PNG_EXTERN void png_handle_cHRM PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_gAMA_SUPPORTED) -PNG_EXTERN void png_handle_gAMA PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_hIST_SUPPORTED) -PNG_EXTERN void png_handle_hIST PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_iCCP_SUPPORTED) -extern void png_handle_iCCP PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif /* PNG_READ_iCCP_SUPPORTED */ - -#if defined(PNG_READ_iTXt_SUPPORTED) -PNG_EXTERN void png_handle_iTXt PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_oFFs_SUPPORTED) -PNG_EXTERN void png_handle_oFFs PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_pCAL_SUPPORTED) -PNG_EXTERN void png_handle_pCAL PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_pHYs_SUPPORTED) -PNG_EXTERN void png_handle_pHYs PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_sBIT_SUPPORTED) -PNG_EXTERN void png_handle_sBIT PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_sCAL_SUPPORTED) -PNG_EXTERN void png_handle_sCAL PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_sPLT_SUPPORTED) -extern void png_handle_sPLT PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif /* PNG_READ_sPLT_SUPPORTED */ - -#if defined(PNG_READ_sRGB_SUPPORTED) -PNG_EXTERN void png_handle_sRGB PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_tEXt_SUPPORTED) -PNG_EXTERN void png_handle_tEXt PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_tIME_SUPPORTED) -PNG_EXTERN void png_handle_tIME PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_tRNS_SUPPORTED) -PNG_EXTERN void png_handle_tRNS PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_zTXt_SUPPORTED) -PNG_EXTERN void png_handle_zTXt PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); - -PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr, - png_bytep chunk_name)); - -/* handle the transformations for reading and writing */ -PNG_EXTERN void png_do_read_transformations PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_do_write_transformations PNGARG((png_structp png_ptr)); - -PNG_EXTERN void png_init_read_transformations PNGARG((png_structp png_ptr)); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_EXTERN void png_push_read_chunk PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_read_sig PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_check_crc PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_crc_skip PNGARG((png_structp png_ptr, - png_uint_32 length)); -PNG_EXTERN void png_push_crc_finish PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_save_buffer PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_restore_buffer PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t buffer_length)); -PNG_EXTERN void png_push_read_IDAT PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_process_IDAT_data PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t buffer_length)); -PNG_EXTERN void png_push_process_row PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_handle_unknown PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_have_info PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_have_end PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_have_row PNGARG((png_structp png_ptr, png_bytep row)); -PNG_EXTERN void png_push_read_end PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_process_some_data PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_read_push_finish_row PNGARG((png_structp png_ptr)); -#if defined(PNG_READ_tEXt_SUPPORTED) -PNG_EXTERN void png_push_handle_tEXt PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_read_tEXt PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) -PNG_EXTERN void png_push_handle_zTXt PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_read_zTXt PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) -PNG_EXTERN void png_push_handle_iTXt PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_read_iTXt PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif - -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -#ifdef PNG_MNG_FEATURES_SUPPORTED -PNG_EXTERN void png_do_read_intrapixel PNGARG((png_row_infop row_info, - png_bytep row)); -PNG_EXTERN void png_do_write_intrapixel PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -#if defined(PNG_MMX_CODE_SUPPORTED) -/* png.c */ /* PRIVATE */ -PNG_EXTERN void png_init_mmx_flags PNGARG((png_structp png_ptr)); -#endif -#endif - -#if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED) -PNG_EXTERN png_uint_32 png_get_pixels_per_inch PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -PNG_EXTERN png_uint_32 png_get_x_pixels_per_inch PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -PNG_EXTERN png_uint_32 png_get_y_pixels_per_inch PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -PNG_EXTERN float png_get_x_offset_inches PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -PNG_EXTERN float png_get_y_offset_inches PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -#if defined(PNG_pHYs_SUPPORTED) -PNG_EXTERN png_uint_32 png_get_pHYs_dpi PNGARG((png_structp png_ptr, -png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); -#endif /* PNG_pHYs_SUPPORTED */ -#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */ - -/* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */ - -#endif /* PNG_INTERNAL */ #ifdef __cplusplus } #endif #endif /* PNG_VERSION_INFO_ONLY */ -/* do not put anything past this line */ +/* Do not put anything past this line */ #endif /* PNG_H */ diff --git a/source/gui/pngconf.h b/source/gui/pngconf.h index 06a182f2..7d178024 100644 --- a/source/gui/pngconf.h +++ b/source/gui/pngconf.h @@ -1,11 +1,16 @@ /* pngconf.h - machine configurable file for libpng * - * libpng version 1.2.29 - May 8, 2008 + * libpng version 1.4.4 - September 23, 2010 * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2008 Glenn Randers-Pehrson + * Copyright (c) 1998-2010 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 @@ -17,30 +22,36 @@ #ifndef PNGCONF_H #define PNGCONF_H -#define PNG_1_2_X +#ifndef PNG_NO_LIMITS_H +# include +#endif -/* - * PNG_USER_CONFIG has to be defined on the compiler command line. This - * includes the resource compiler for Windows DLL configurations. +/* Added at libpng-1.2.9 */ + +/* config.h is created by and PNG_CONFIGURE_LIBPNG is set by the "configure" + * script. */ -#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 +# 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: + * + * 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 +# include "pngusr.h" +# ifndef PNG_USER_PRIVATEBUILD +# define PNG_USER_PRIVATEBUILD +# endif +#endif + +/* + * If you create a private DLL you should define in "pngusr.h" the following: * #define PNG_USER_PRIVATEBUILD * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." @@ -48,10 +59,10 @@ * 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" + * e.g. // private DLL "libpng14gx.dll" * #define PNG_USER_DLLFNAME_POSTFIX "gx" - * - * The following macros are also at your disposal if you want to complete the + * + * 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 @@ -59,29 +70,21 @@ */ #ifdef __STDC__ -#ifdef SPECIALBUILD -# pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\ - are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.") -#endif +# 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 +# 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 */ +#ifndef PNG_VERSION_INFO_ONLY /* 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 @@ -112,20 +115,57 @@ # define PNG_WRITE_SUPPORTED #endif +/* Enabled in 1.4.0. */ +#ifdef PNG_ALLOW_BENIGN_ERRORS +# define png_benign_error png_warning +# define png_chunk_benign_error png_chunk_warning +#else +# ifndef PNG_BENIGN_ERRORS_SUPPORTED +# define png_benign_error png_error +# define png_chunk_benign_error png_chunk_error +# endif +#endif + +/* Added at libpng version 1.4.0 */ +#if !defined(PNG_NO_WARNINGS) && !defined(PNG_WARNINGS_SUPPORTED) +# define PNG_WARNINGS_SUPPORTED +#endif + +/* Added at libpng version 1.4.0 */ +#if !defined(PNG_NO_ERROR_TEXT) && !defined(PNG_ERROR_TEXT_SUPPORTED) +# define PNG_ERROR_TEXT_SUPPORTED +#endif + +/* Added at libpng version 1.4.0 */ +#if !defined(PNG_NO_CHECK_cHRM) && !defined(PNG_CHECK_cHRM_SUPPORTED) +# define PNG_CHECK_cHRM_SUPPORTED +#endif + +/* Added at libpng version 1.4.0 */ +#if !defined(PNG_NO_ALIGNED_MEMORY) && !defined(PNG_ALIGNED_MEMORY_SUPPORTED) +# define PNG_ALIGNED_MEMORY_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_NO_MNG_FEATURES # ifndef PNG_MNG_FEATURES_SUPPORTED # define PNG_MNG_FEATURES_SUPPORTED # endif #endif +/* Added at libpng version 1.4.0 */ #ifndef PNG_NO_FLOATING_POINT_SUPPORTED # ifndef PNG_FLOATING_POINT_SUPPORTED # define PNG_FLOATING_POINT_SUPPORTED # endif #endif +/* Added at libpng-1.4.0beta49 for testing (this test is no longer used + in libpng and png_calloc() is always present) + */ +#define PNG_CALLOC_SUPPORTED + /* 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 @@ -147,9 +187,9 @@ * '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 + * 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 + * 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 @@ -162,57 +202,57 @@ * 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 + * 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 + * 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. + * such as CONSOLE_IO. */ -#if defined(__CYGWIN__) -# if defined(ALL_STATIC) -# if defined(PNG_BUILD_DLL) +#ifdef __CYGWIN__ +# ifdef ALL_STATIC +# ifdef PNG_BUILD_DLL # undef PNG_BUILD_DLL # endif -# if defined(PNG_USE_DLL) +# ifdef PNG_USE_DLL # undef PNG_USE_DLL # endif -# if defined(PNG_DLL) +# ifdef PNG_DLL # undef PNG_DLL # endif -# if !defined(PNG_STATIC) +# ifndef PNG_STATIC # define PNG_STATIC # endif # else -# if defined (PNG_BUILD_DLL) -# if defined(PNG_STATIC) +# ifdef PNG_BUILD_DLL +# ifdef PNG_STATIC # undef PNG_STATIC # endif -# if defined(PNG_USE_DLL) +# ifdef PNG_USE_DLL # undef PNG_USE_DLL # endif -# if !defined(PNG_DLL) +# ifndef PNG_DLL # define PNG_DLL # endif # else -# if defined(PNG_STATIC) -# if defined(PNG_USE_DLL) +# ifdef PNG_STATIC +# ifdef PNG_USE_DLL # undef PNG_USE_DLL # endif -# if defined(PNG_DLL) +# ifdef PNG_DLL # undef PNG_DLL # endif # else -# if !defined(PNG_USE_DLL) +# ifndef PNG_USE_DLL # define PNG_USE_DLL # endif -# if !defined(PNG_DLL) +# ifndef PNG_DLL # define PNG_DLL # endif -# endif -# endif +# endif +# endif # endif #endif @@ -229,20 +269,22 @@ * #define PNG_NO_STDIO */ -#if defined(_WIN32_WCE) -# include - /* Console I/O functions are not supported on WindowsCE */ +#ifdef _WIN32_WCE # define PNG_NO_CONSOLE_IO +# define PNG_NO_STDIO +# define PNG_NO_TIME_RFC1123 # ifdef PNG_DEBUG # undef PNG_DEBUG # endif #endif +#if !defined(PNG_NO_STDIO) && !defined(PNG_STDIO_SUPPORTED) +# define PNG_STDIO_SUPPORTED +#endif + #ifdef PNG_BUILD_DLL -# ifndef PNG_CONSOLE_IO_SUPPORTED -# ifndef PNG_NO_CONSOLE_IO -# define PNG_NO_CONSOLE_IO -# endif +# if !defined(PNG_CONSOLE_IO_SUPPORTED) && !defined(PNG_NO_CONSOLE_IO) +# define PNG_NO_CONSOLE_IO # endif #endif @@ -256,12 +298,13 @@ # endif # endif # else -# if !defined(_WIN32_WCE) -/* "stdio.h" functions are not supported on WindowsCE */ -# include -# endif +# include # endif +#if !(defined PNG_NO_CONSOLE_IO) && !defined(PNG_CONSOLE_IO_SUPPORTED) +# define PNG_CONSOLE_IO_SUPPORTED +#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. @@ -277,14 +320,10 @@ #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 */ @@ -300,42 +339,53 @@ # endif #endif -/* enough people need this for various reasons to include it here */ -#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE) +/* Enough people need this for various reasons to include it here */ +#if !defined(MACOS) && !defined(RISCOS) # include #endif -#if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED) +/* PNG_SETJMP_NOT_SUPPORTED and PNG_NO_SETJMP_SUPPORTED are deprecated. */ +#if !defined(PNG_NO_SETJMP) && \ + !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. */ -# 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__ already includes setjmp.h; - __dont__ include it again.; -# endif -# endif /* __linux__ */ +# 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 for error handling */ # include # ifdef __linux__ # ifdef PNG_SAVE_BSD_SOURCE -# ifndef _BSD_SOURCE -# define _BSD_SOURCE +# ifdef _BSD_SOURCE +# undef _BSD_SOURCE # endif +# define _BSD_SOURCE # undef PNG_SAVE_BSD_SOURCE # endif # endif /* __linux__ */ @@ -348,72 +398,33 @@ #endif /* Other defines for things like memory and the like can go here. */ -#ifdef PNG_INTERNAL -#include - -/* 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 hasn't already been included earlier - * as it seems it doesn't agree with , yet we should really use - * if possible. - */ -# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) -# include -# endif -# else -# include -# endif -# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) - /* Amiga SAS/C: We must include builtin FPU functions when compiling using - * MATH=68881 - */ -# include -# 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 -# include -#endif - -/* I have no idea why is this necessary... */ -#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ - defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) -# include -#endif - -/* This controls how fine the dithering gets. As this allocates +/* This controls how fine the quantizing 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. + * with quantizing quality can decrease some or all of these. */ -#ifndef PNG_DITHER_RED_BITS -# define PNG_DITHER_RED_BITS 5 + +/* Prior to libpng-1.4.2, these were PNG_DITHER_*_BITS + * These migration aids will be removed from libpng-1.5.0. + */ +#ifdef PNG_DITHER_RED_BITS +# define PNG_QUANTIZE_RED_BITS PNG_DITHER_RED_BITS #endif -#ifndef PNG_DITHER_GREEN_BITS -# define PNG_DITHER_GREEN_BITS 5 +#ifdef PNG_DITHER_GREEN_BITS +# define PNG_QUANTIZE_GREEN_BITS PNG_DITHER_GREEN_BITS #endif -#ifndef PNG_DITHER_BLUE_BITS -# define PNG_DITHER_BLUE_BITS 5 +#ifdef PNG_DITHER_BLUE_BITS +# define PNG_QUANTIZE_BLUE_BITS PNG_DITHER_BLUE_BITS +#endif + +#ifndef PNG_QUANTIZE_RED_BITS +# define PNG_QUANTIZE_RED_BITS 5 +#endif +#ifndef PNG_QUANTIZE_GREEN_BITS +# define PNG_QUANTIZE_GREEN_BITS 5 +#endif +#ifndef PNG_QUANTIZE_BLUE_BITS +# define PNG_QUANTIZE_BLUE_BITS 5 #endif /* This controls how fine the gamma correction becomes when you @@ -434,25 +445,27 @@ # 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. + * If you do not want to use const, define PNG_NO_CONST. */ -#ifndef PNG_NO_CONST -# define PNG_CONST const -#else -# define PNG_CONST +#ifndef PNG_CONST +# ifndef PNG_NO_CONST +# define PNG_CONST const +# else +# define PNG_CONST +# endif #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 + * to an #undef, or pass in PNG_NO_feature 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 @@ -464,84 +477,25 @@ /* 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 + * to turn it off with PNG_NO_READ|WRITE_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 PNG_NO_READ|WRITE_TRANSFORMS * 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) + * 1.0.1c, for consistency; PNG_*_TRANSFORMS_NOT_SUPPORTED deprecated in + * 1.4.0) */ -/* 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 - * was turned on by default in libpng-1.3.0. - */ - -#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_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 - -#if defined(PNG_READ_SUPPORTED) +#ifdef PNG_READ_SUPPORTED +/* PNG_READ_TRANSFORMS_NOT_SUPPORTED is deprecated. */ #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ !defined(PNG_NO_READ_TRANSFORMS) # define PNG_READ_TRANSFORMS_SUPPORTED @@ -569,8 +523,11 @@ # ifndef PNG_NO_READ_INVERT # define PNG_READ_INVERT_SUPPORTED # endif -# ifndef PNG_NO_READ_DITHER -# define PNG_READ_DITHER_SUPPORTED +# ifndef PNG_NO_READ_QUANTIZE + /* Prior to libpng-1.4.0 this was PNG_READ_DITHER_SUPPORTED */ +# ifndef PNG_NO_READ_DITHER /* This migration aid will be removed */ +# define PNG_READ_QUANTIZE_SUPPORTED +# endif # endif # ifndef PNG_NO_READ_BACKGROUND # define PNG_READ_BACKGROUND_SUPPORTED @@ -604,33 +561,41 @@ # endif #endif /* PNG_READ_TRANSFORMS_SUPPORTED */ +/* PNG_PROGRESSIVE_READ_NOT_SUPPORTED is deprecated. */ #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: */ + !defined(PNG_PROGRESSIVE_READ_NOT_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 define: */ -#define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */ +#define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */ + +/* PNG_NO_SEQUENTIAL_READ_SUPPORTED is deprecated. */ +#if !defined(PNG_NO_SEQUENTIAL_READ) && \ + !defined(PNG_SEQUENTIAL_READ_SUPPORTED) && \ + !defined(PNG_NO_SEQUENTIAL_READ_SUPPORTED) +# define PNG_SEQUENTIAL_READ_SUPPORTED +#endif #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 */ +# 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 +#if !defined(PNG_NO_GET_INT_32) || defined(PNG_READ_oFFS_SUPPORTED) || \ + defined(PNG_READ_pCAL_SUPPORTED) +# ifndef PNG_GET_INT_32_SUPPORTED +# define PNG_GET_INT_32_SUPPORTED +# endif #endif #endif /* PNG_READ_SUPPORTED */ -#if defined(PNG_WRITE_SUPPORTED) +#ifdef PNG_WRITE_SUPPORTED -# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ +/* PNG_WRITE_TRANSFORMS_NOT_SUPPORTED is deprecated. */ +#if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ !defined(PNG_NO_WRITE_TRANSFORMS) # define PNG_WRITE_TRANSFORMS_SUPPORTED #endif @@ -670,9 +635,10 @@ #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 */ + /* This is not required for PNG-compliant encoders, but can cause + * trouble if left undefined + */ +# define PNG_WRITE_INTERLACING_SUPPORTED #endif #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ @@ -685,20 +651,16 @@ # 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 +#if !defined(PNG_NO_SAVE_INT_32) || defined(PNG_WRITE_oFFS_SUPPORTED) || \ + defined(PNG_WRITE_pCAL_SUPPORTED) +# ifndef PNG_SAVE_INT_32_SUPPORTED +# define PNG_SAVE_INT_32_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 */ +#define PNG_NO_ERROR_NUMBERS #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) @@ -707,7 +669,7 @@ # endif #endif -#ifndef PNG_NO_STDIO +#if defined(PNG_STDIO_SUPPORTED) && !defined(PNG_TIME_RFC1123_SUPPORTED) # define PNG_TIME_RFC1123_SUPPORTED #endif @@ -731,65 +693,35 @@ # 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) +/* Added at libpng-1.2.0 */ #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 +#ifndef PNG_NO_SET_USER_LIMITS +# ifndef PNG_SET_USER_LIMITS_SUPPORTED +# define PNG_SET_USER_LIMITS_SUPPORTED +# endif + /* Feature added at libpng-1.4.0, this flag added at 1.4.1 */ +# ifndef PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED +# define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED +# endif + /* Feature added at libpng-1.4.1, this flag added at 1.4.1 */ +# ifndef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED +# define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED +# endif #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 +/* Added at libpng-1.2.43 */ +#ifndef PNG_USER_LIMITS_SUPPORTED +# ifndef PNG_NO_USER_LIMITS +# define PNG_USER_LIMITS_SUPPORTED +# endif +#endif + +/* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGs no matter + * how large, set these two limits to 0x7fffffffL */ #ifndef PNG_USER_WIDTH_MAX # define PNG_USER_WIDTH_MAX 1000000L @@ -798,9 +730,39 @@ # define PNG_USER_HEIGHT_MAX 1000000L #endif +/* Added at libpng-1.2.43. To accept all valid PNGs no matter + * how large, set these two limits to 0. + */ +#ifndef PNG_USER_CHUNK_CACHE_MAX +# define PNG_USER_CHUNK_CACHE_MAX 0 +#endif + +/* Added at libpng-1.2.43 */ +#ifndef PNG_USER_CHUNK_MALLOC_MAX +# define PNG_USER_CHUNK_MALLOC_MAX 0 +#endif + +/* Added at libpng-1.4.0 */ +#if !defined(PNG_NO_IO_STATE) && !defined(PNG_IO_STATE_SUPPORTED) +# define PNG_IO_STATE_SUPPORTED +#endif + +#ifndef PNG_LITERAL_SHARP +# define PNG_LITERAL_SHARP 0x23 +#endif +#ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET +# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b +#endif +#ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET +# define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d +#endif +#ifndef PNG_STRING_NEWLINE +#define PNG_STRING_NEWLINE "\n" +#endif + /* These are currently experimental features, define them if you want */ -/* very little testing */ +/* Very little testing */ /* #ifdef PNG_READ_SUPPORTED # ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED @@ -817,16 +779,17 @@ #endif */ -/* Buggy compilers (e.g., gcc 2.7.2.2) need this */ -/* -#define PNG_NO_POINTER_INDEXING -*/ +#if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS) +# define PNG_USE_READ_MACROS +#endif + +/* Buggy compilers (e.g., gcc 2.7.2.2) need PNG_NO_POINTER_INDEXING */ + +#if !defined(PNG_NO_POINTER_INDEXING) && \ + !defined(PNG_POINTER_INDEXING_SUPPORTED) +# define PNG_POINTER_INDEXING_SUPPORTED +#endif -/* 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, @@ -834,12 +797,21 @@ * a bit smaller. */ +/* 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 + * was turned on by default in libpng-1.4.0. + */ + +/* PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated. */ #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 +/* PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED is deprecated. */ #if defined(PNG_WRITE_SUPPORTED) && \ !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) @@ -853,6 +825,7 @@ # 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 @@ -925,26 +898,6 @@ # define PNG_READ_zTXt_SUPPORTED # define PNG_zTXt_SUPPORTED #endif -#ifndef PNG_NO_READ_UNKNOWN_CHUNKS -# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_UNKNOWN_CHUNKS_SUPPORTED -# endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# define PNG_HANDLE_AS_UNKNOWN_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_READ_OPT_PLTE # define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ #endif /* optional PLTE chunk in RGB and RGBA images */ @@ -956,6 +909,32 @@ #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ +#ifndef PNG_NO_READ_UNKNOWN_CHUNKS +# ifndef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED +# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED +# endif +# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED +# define PNG_UNKNOWN_CHUNKS_SUPPORTED +# endif +# ifndef PNG_READ_USER_CHUNKS_SUPPORTED +# define PNG_READ_USER_CHUNKS_SUPPORTED +# endif +#endif +#ifndef PNG_NO_READ_USER_CHUNKS +# ifndef PNG_READ_USER_CHUNKS_SUPPORTED +# define PNG_READ_USER_CHUNKS_SUPPORTED +# endif +# ifndef PNG_USER_CHUNKS_SUPPORTED +# define PNG_USER_CHUNKS_SUPPORTED +# 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 @@ -1067,17 +1046,6 @@ # define PNG_zTXt_SUPPORTED # endif #endif -#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS -# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_UNKNOWN_CHUNKS_SUPPORTED -# endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# endif -# endif -#endif #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ defined(PNG_WRITE_zTXt_SUPPORTED) # define PNG_WRITE_TEXT_SUPPORTED @@ -1086,8 +1054,38 @@ # endif #endif +#ifdef PNG_WRITE_tIME_SUPPORTED +# ifndef PNG_NO_CONVERT_tIME +# ifndef _WIN32_WCE +/* The "tm" structure is not supported on WindowsCE */ +# ifndef PNG_CONVERT_tIME_SUPPORTED +# define PNG_CONVERT_tIME_SUPPORTED +# endif +# endif +# endif +#endif + #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ +#ifndef PNG_NO_WRITE_FILTER +# ifndef PNG_WRITE_FILTER_SUPPORTED +# define PNG_WRITE_FILTER_SUPPORTED +# endif +#endif + +#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. @@ -1096,12 +1094,10 @@ # define PNG_INFO_IMAGE_SUPPORTED #endif -/* need the time information for reading tIME chunks */ -#if defined(PNG_tIME_SUPPORTED) -# if !defined(_WIN32_WCE) +/* Need the time information for converting tIME chunks */ +#ifdef PNG_CONVERT_tIME_SUPPORTED /* "time.h" functions are not supported on WindowsCE */ # include -# endif #endif /* Some typedefs to get us started. These should be safe on most of the @@ -1109,28 +1105,29 @@ * 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. + * unsigned int for png_uint_16. */ +#if defined(INT_MAX) && (INT_MAX > 0x7ffffffeL) +typedef unsigned int png_uint_32; +typedef int png_int_32; +#else typedef unsigned long png_uint_32; typedef long png_int_32; +#endif 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)) +#ifdef PNG_NO_SIZE_T + typedef unsigned int png_size_t; #else typedef size_t png_size_t; -# define png_sizeof(x) sizeof (x) #endif +#define png_sizeof(x) (sizeof (x)) /* The following is needed for medium model support. It cannot be in the - * PNG_INTERNAL section. Needs modification for other compilers besides + * pngpriv.h header. 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 @@ -1139,7 +1136,8 @@ typedef unsigned char png_byte; */ /* Separate compiler dependencies (problem here is that zlib.h always - defines FAR. (SJT) */ + * defines FAR. (SJT) + */ #ifdef __BORLANDC__ # if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) # define LDATA 1 @@ -1170,8 +1168,8 @@ typedef unsigned char png_byte; */ /* MSC Medium model */ -#if defined(FAR) -# if defined(M_I86MM) +#ifdef FAR +# ifdef M_I86MM # define USE_FAR_KEYWORD # define FARDATA FAR # include @@ -1204,12 +1202,8 @@ 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; @@ -1231,20 +1225,7 @@ typedef double FAR * FAR * png_doublepp; /* 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 +/* 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. @@ -1264,49 +1245,6 @@ typedef z_stream FAR * png_zstreamp; #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. @@ -1315,6 +1253,19 @@ typedef z_stream FAR * png_zstreamp; * zlib and your applications the same way you build libpng. */ +#ifdef __CYGWIN__ +# undef PNGAPI +# define PNGAPI __cdecl +# undef PNG_IMPEXP +# define PNG_IMPEXP +#endif + +#ifdef __WATCOMC__ +# ifndef PNGAPI +# define PNGAPI +# endif +#endif + #if defined(__MINGW32__) && !defined(PNG_MODULEDEF) # ifndef PNG_NO_MODULEDEF # define PNG_NO_MODULEDEF @@ -1342,43 +1293,42 @@ typedef z_stream FAR * png_zstreamp; # define PNG_IMPEXP # endif -# if !defined(PNG_IMPEXP) +# ifndef PNG_IMPEXP -# define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol -# define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol +# 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 + /* 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 +# ifdef 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 +# ifndef PNG_IMPEXP +# ifdef 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 +# ifndef PNGAPI +# define PNGAPI _System +# endif # else -# if 0 /* ... other platforms, with other meanings */ -# endif +# if 0 /* ... other platforms, with other meanings */ +# endif # endif #endif @@ -1393,79 +1343,187 @@ typedef z_stream FAR * png_zstreamp; # 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 +#define PNG_USE_LOCAL_ARRAYS /* Not used in libpng, defined for legacy apps */ + +/* Support for compiler specific function attributes. These are used + * so that where compiler support is available incorrect use of API + * functions in png.h will generate compiler warnings. + * + * Added at libpng-1.2.41. + */ + +#ifndef PNG_NO_PEDANTIC_WARNINGS +# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED +# define PNG_PEDANTIC_WARNINGS_SUPPORTED # 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. +#ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED +/* Support for compiler specific function attributes. These are used + * so that where compiler support is available incorrect use of API + * functions in png.h will generate compiler warnings. Added at libpng + * version 1.2.41. + */ +# ifdef __GNUC__ +# ifndef PNG_USE_RESULT +# define PNG_USE_RESULT __attribute__((__warn_unused_result__)) +# endif +# ifndef PNG_NORETURN +# define PNG_NORETURN __attribute__((__noreturn__)) +# endif +# ifndef PNG_ALLOCATED +# define PNG_ALLOCATED __attribute__((__malloc__)) +# endif + + /* This specifically protects structure members that should only be + * accessed from within the library, therefore should be empty during + * a library build. + */ +# ifndef PNG_DEPRECATED +# define PNG_DEPRECATED __attribute__((__deprecated__)) +# endif +# ifndef PNG_DEPSTRUCT +# define PNG_DEPSTRUCT __attribute__((__deprecated__)) +# endif +# ifndef PNG_PRIVATE +# if 0 /* Doesn't work so we use deprecated instead*/ +# define PNG_PRIVATE \ + __attribute__((warning("This function is not exported by libpng."))) +# else +# define PNG_PRIVATE \ + __attribute__((__deprecated__)) +# endif +# endif /* PNG_PRIVATE */ +# endif /* __GNUC__ */ +#endif /* PNG_PEDANTIC_WARNINGS */ + +#ifndef PNG_DEPRECATED +# define PNG_DEPRECATED /* Use of this function is deprecated */ +#endif +#ifndef PNG_USE_RESULT +# define PNG_USE_RESULT /* The result of this function must be checked */ +#endif +#ifndef PNG_NORETURN +# define PNG_NORETURN /* This function does not return */ +#endif +#ifndef PNG_ALLOCATED +# define PNG_ALLOCATED /* The result of the function is new memory */ +#endif +#ifndef PNG_DEPSTRUCT +# define PNG_DEPSTRUCT /* Access to this struct member is deprecated */ +#endif +#ifndef PNG_PRIVATE +# define PNG_PRIVATE /* This is a private libpng function */ +#endif + +/* Users may want to use these so they are not private. Any library + * functions that are passed far data must be model-independent. */ +/* memory model/platform independent fns */ #ifndef PNG_ABORT -# define PNG_ABORT() abort() +# if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) +# define PNG_ABORT() ExitProcess(0) +# else +# define PNG_ABORT() abort() +# endif #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 */ +#ifdef USE_FAR_KEYWORD +/* 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_strcpy _fstrcpy +# define png_strncpy _fstrncpy /* Added to v 1.2.6 */ # 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 +# define png_sprintf sprintf +#else +# if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) +# /* Favor Windows over C runtime fns */ +# define CVT_PTR(ptr) (ptr) +# define CVT_PTR_NOCHECK(ptr) (ptr) +# define png_strcpy lstrcpyA +# define png_strncpy lstrcpynA +# define png_strlen lstrlenA +# define png_memcmp memcmp +# define png_memcpy CopyMemory +# define png_memset memset +# define png_sprintf wsprintfA # 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) +# define CVT_PTR(ptr) (ptr) +# define CVT_PTR_NOCHECK(ptr) (ptr) +# define png_strcpy strcpy +# define png_strncpy strncpy /* Added to v 1.2.6 */ +# define png_strlen strlen +# define png_memcmp memcmp /* SJT: added */ +# define png_memcpy memcpy +# define png_memset memset +# define png_sprintf sprintf # 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 */ + +#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) png_sprintf(s1,fmt,x1) +# define png_snprintf2(s1,n,fmt,x1,x2) png_sprintf(s1,fmt,x1,x2) +# define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \ + png_sprintf(s1,fmt,x1,x2,x3,x4,x5,x6) +#endif + +/* png_alloc_size_t is guaranteed to be no smaller than png_size_t, + * and no smaller than png_uint_32. Casts from png_size_t or png_uint_32 + * to png_alloc_size_t are not necessary; in fact, it is recommended + * not to use them at all so that the compiler can complain when something + * turns out to be problematic. + * Casts in the other direction (from png_alloc_size_t to png_size_t or + * png_uint_32) should be explicitly applied; however, we do not expect + * to encounter practical situations that require such conversions. + */ +#if defined(__TURBOC__) && !defined(__FLAT__) + typedef unsigned long png_alloc_size_t; +#else +# if defined(_MSC_VER) && defined(MAXSEG_64K) + typedef unsigned long png_alloc_size_t; +# else + /* This is an attempt to detect an old Windows system where (int) is + * actually 16 bits, in that case png_malloc must have an argument with a + * bigger size to accomodate the requirements of the library. + */ +# if (defined(_Windows) || defined(_WINDOWS) || defined(_WINDOWS_)) && \ + (!defined(INT_MAX) || INT_MAX <= 0x7ffffffeL) + typedef DWORD png_alloc_size_t; +# else + typedef png_size_t png_alloc_size_t; +# endif +# endif +#endif +/* End of memory model/platform independent support */ /* Just a little check that someone hasn't tried to define something * contradictory. @@ -1475,6 +1533,7 @@ typedef z_stream FAR * png_zstreamp; # define PNG_ZBUF_SIZE 65536L #endif + /* Added at libpng-1.2.8 */ #endif /* PNG_VERSION_INFO_ONLY */ diff --git a/source/gui/pngu.c b/source/gui/pngu.c index d9385495..8178e4ba 100644 --- a/source/gui/pngu.c +++ b/source/gui/pngu.c @@ -776,7 +776,7 @@ int PNGU_DecodeToCMPR(IMGCTX ctx, PNGU_u32 width, PNGU_u32 height, void *buffer) void user_error (png_structp png_ptr, png_const_charp c) { - longjmp (png_ptr->jmpbuf, 1); + longjmp(png_jmpbuf(png_ptr), 1); } int PNGU_EncodeFromYCbYCr (IMGCTX ctx, PNGU_u32 width, PNGU_u32 height, void *buffer, PNGU_u32 stride) {