X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a626cc03053700ca5bdbf0243831bec528e6fc4d..abd474ea63667f727940a009cc3e0b23ba9f418f:/src/png/pngconf.h diff --git a/src/png/pngconf.h b/src/png/pngconf.h index 028f2a1a70..7c3f8c1333 100644 --- a/src/png/pngconf.h +++ b/src/png/pngconf.h @@ -1,11 +1,16 @@ /* pngconf.h - machine configurable file for libpng * - * libpng 1.0.3 - January 14, 1999 + * libpng version 1.4.4 - September 23, 2010 * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. - * Copyright (c) 1996, 1997 Andreas Dilger - * Copyright (c) 1998, 1999 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 @@ -17,6 +22,73 @@ #ifndef PNGCONF_H #define PNGCONF_H +#ifdef __DMC__ +#define PNG_NO_SNPRINTF +#endif + +#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 @@ -32,9 +104,72 @@ */ #ifndef PNG_ZBUF_SIZE -#define PNG_ZBUF_SIZE 8192 +# 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 @@ -44,7 +179,85 @@ #define PNG_MAX_MALLOC_64K */ #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) -#define 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 @@ -54,24 +267,46 @@ * 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 has been #defined. + * unless (PNG_DEBUG > 0) has been #defined. * * #define PNG_NO_CONSOLE_IO * #define PNG_NO_STDIO */ -#ifdef PNG_DEBUG -# if (PNG_DEBUG > 0) -# include +#ifdef _WIN32_WCE +# define PNG_NO_CONSOLE_IO +# define PNG_NO_STDIO +# define PNG_NO_TIME_RFC1123 +# ifdef PNG_DEBUG +# undef PNG_DEBUG # endif -#else +#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 @@ -84,13 +319,13 @@ #ifndef PNGARG #ifdef OF /* zlib prototype munger */ -#define PNGARG(arglist) OF(arglist) +# define PNGARG(arglist) OF(arglist) #else #ifdef _NO_PROTO -#define PNGARG(arglist) () +# define PNGARG(arglist) () #else -#define PNGARG(arglist) arglist +# define PNGARG(arglist) arglist #endif /* _NO_PROTO */ #endif /* OF */ @@ -102,106 +337,98 @@ * 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 +# 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 */ +/* Enough people need this for various reasons to include it here */ #if !defined(MACOS) && !defined(RISCOS) -#include +# 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. */ -#ifdef __linux__ -#ifdef _BSD_SOURCE -#define _PNG_SAVE_BSD_SOURCE -#undef _BSD_SOURCE -#endif -#ifdef _SETJMP_H -__png.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 -#define _BSD_SOURCE -#undef _PNG_SAVE_BSD_SOURCE -#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 + +# 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 +# include #else -#include +# 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. +/* 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. */ -#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. +/* Prior to libpng-1.4.2, these were PNG_DITHER_*_BITS + * These migration aids will be removed from libpng-1.5.0. */ -#if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) -#include +#ifdef PNG_DITHER_RED_BITS +# define PNG_QUANTIZE_RED_BITS PNG_DITHER_RED_BITS #endif -#else -#include -#endif - -/* Codewarrior on NT has linking problems without this. */ -#if defined(__MWERKS__) && defined(WIN32) -#define PNG_ALWAYS_EXTERN -#endif - -/* For some reason, Borland C++ defines memcmp, etc. in mem.h, not - * stdlib.h like it should (I think). Or perhaps this is a C++ - * "feature"? - */ -#ifdef __TURBOC__ -#include -#include "alloc.h" +#ifdef PNG_DITHER_GREEN_BITS +# define PNG_QUANTIZE_GREEN_BITS PNG_DITHER_GREEN_BITS #endif - -#ifdef _MSC_VER -#include +#ifdef PNG_DITHER_BLUE_BITS +# define PNG_QUANTIZE_BLUE_BITS PNG_DITHER_BLUE_BITS #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 +#ifndef PNG_QUANTIZE_RED_BITS +# define PNG_QUANTIZE_RED_BITS 5 #endif -#ifndef PNG_DITHER_GREEN_BITS -#define PNG_DITHER_GREEN_BITS 5 +#ifndef PNG_QUANTIZE_GREEN_BITS +# define PNG_QUANTIZE_GREEN_BITS 5 #endif -#ifndef PNG_DITHER_BLUE_BITS -#define PNG_DITHER_BLUE_BITS 5 +#ifndef PNG_QUANTIZE_BLUE_BITS +# define PNG_QUANTIZE_BLUE_BITS 5 #endif /* This controls how fine the gamma correction becomes when you @@ -212,35 +439,37 @@ __dont__ include it again */ #ifndef PNG_MAX_GAMMA_8 -#define PNG_MAX_GAMMA_8 11 +# 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 +# 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 @@ -249,143 +478,203 @@ __dont__ include it again * things to happen if the library and/or application ever change. */ -/* Any transformations you will not be using can be undef'ed here */ +/* 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) + * 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 -#if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ - !defined(PNG_NO_WRITE_TRANSFORMS) -#define PNG_WRITE_TRANSFORMS_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 +# 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 */ + !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 line: */ + /* still have interlacing unless you change the following define: */ + #define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */ -#ifndef PNG_NO_READ_COMPOSITED_NODIV -#define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel and SGI */ +/* 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 -#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 +#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 -#ifndef PNG_NO_WRITE_PACKSWAP -#define PNG_WRITE_PACKSWAP_SUPPORTED + +#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 -#ifndef PNG_NO_WRITE_INVERT -#define PNG_WRITE_INVERT_SUPPORTED + +#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 -#ifndef PNG_NO_WRITE_FILLER -#define PNG_WRITE_FILLER_SUPPORTED /* This is the same as WRITE_STRIP_ALPHA */ + +#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 -#ifndef PNG_NO_WRITE_SWAP_ALPHA -#define PNG_WRITE_SWAP_ALPHA_SUPPORTED + +#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_INVERT_ALPHA -#define PNG_WRITE_INVERT_ALPHA_SUPPORTED + +#ifndef PNG_NO_WRITE_FLUSH +# define PNG_WRITE_FLUSH_SUPPORTED #endif -#ifndef PNG_NO_WRITE_USER_TRANSFORM -#define PNG_WRITE_USER_TRANSFORM_SUPPORTED + +#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_TRANSFORMS_SUPPORTED */ -#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant - encoders, but can cause trouble - if left undefined */ +#endif /* PNG_WRITE_SUPPORTED */ -#ifndef PNG_NO_WRITE_WEIGHTED_FILTER -#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED -#endif +#define PNG_NO_ERROR_NUMBERS -#ifndef PNG_NO_WRITE_FLUSH -#define PNG_WRITE_FLUSH_SUPPORTED +#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 +#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 @@ -404,29 +693,107 @@ __dont__ include it again * png_get_x_offset_microns() * png_get_y_offset_microns() */ -#ifndef PNG_NO_EASY_ACCESS -#define PNG_EASY_ACCESS_SUPPORTED +#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 */ +/* Very little testing */ /* -#define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED -#define PNG_USER_MEM_SUPPORTED +#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 */ /* -#define PNG_READ_BIG_ENDIAN_SUPPORTED +#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED +# define PNG_READ_BIG_ENDIAN_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 -*/ +#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, @@ -434,105 +801,307 @@ __dont__ include it again * a bit smaller. */ -#if !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ +/* 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 +# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED #endif -#if !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ + +/* 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 +# 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_READ_bKGD_SUPPORTED +# define PNG_bKGD_SUPPORTED #endif #ifndef PNG_NO_READ_cHRM -#define PNG_READ_cHRM_SUPPORTED +# define PNG_READ_cHRM_SUPPORTED +# define PNG_cHRM_SUPPORTED #endif #ifndef PNG_NO_READ_gAMA -#define PNG_READ_gAMA_SUPPORTED +# define PNG_READ_gAMA_SUPPORTED +# define PNG_gAMA_SUPPORTED #endif #ifndef PNG_NO_READ_hIST -#define PNG_READ_hIST_SUPPORTED +# 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_READ_oFFs_SUPPORTED +# define PNG_oFFs_SUPPORTED #endif #ifndef PNG_NO_READ_pCAL -#define PNG_READ_pCAL_SUPPORTED +# 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_READ_pHYs_SUPPORTED +# define PNG_pHYs_SUPPORTED #endif #ifndef PNG_NO_READ_sBIT -#define PNG_READ_sBIT_SUPPORTED +# 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_READ_sRGB_SUPPORTED +# define PNG_sRGB_SUPPORTED #endif #ifndef PNG_NO_READ_tEXt -#define PNG_READ_tEXt_SUPPORTED +# define PNG_READ_tEXt_SUPPORTED +# define PNG_tEXt_SUPPORTED #endif #ifndef PNG_NO_READ_tIME -#define PNG_READ_tIME_SUPPORTED +# define PNG_READ_tIME_SUPPORTED +# define PNG_tIME_SUPPORTED #endif #ifndef PNG_NO_READ_tRNS -#define PNG_READ_tRNS_SUPPORTED +# define PNG_READ_tRNS_SUPPORTED +# define PNG_tRNS_SUPPORTED #endif #ifndef PNG_NO_READ_zTXt -#define PNG_READ_zTXt_SUPPORTED +# 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 optional */ -#endif /* PLTE chunk in RGB and RGBA images */ +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 +# 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 */ -/* need the time information for reading tIME chunks */ -#if defined(PNG_READ_tIME_SUPPORTED) || defined(PNG_WRITE_tIME_SUPPORTED) -#include +#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 @@ -540,22 +1109,29 @@ __dont__ include it again * 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) */ -typedef size_t png_size_t; +#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 - * 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 @@ -564,30 +1140,29 @@ typedef size_t png_size_t; */ /* 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 - -#if !defined(__WIN32__) && !defined(__FLAT__) -#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 + * defines FAR. (SJT) */ -#endif /* __WIN32__, __FLAT__ */ - +#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__ */ @@ -597,24 +1172,28 @@ typedef size_t png_size_t; */ /* MSC Medium model */ -#if defined(FAR) -# if defined(M_I86MM) -# define USE_FAR_KEYWORD -# define FARDATA FAR -# include +#ifdef FAR +# ifdef M_I86MM +# define USE_FAR_KEYWORD +# define FARDATA FAR +# include # endif #endif /* SJT: default case */ #ifndef FAR -# define FAR +# define FAR #endif /* At this point FAR is always defined */ #ifndef FARDATA -#define 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; @@ -624,7 +1203,15 @@ 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; @@ -634,72 +1221,324 @@ 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 */ +/* Pointers to pointers to pointers; i.e., pointer to array */ typedef char FAR * FAR * FAR * png_charppp; -/* 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. +/* 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. */ -typedef charf * png_zcharp; -typedef charf * FAR * png_zcharpp; -typedef z_stream FAR * png_zstreamp; -/* allow for compilation as dll under MS Windows */ -#ifdef __WIN32DLL__ -#define PNG_EXPORT(type,symbol) __declspec(dllexport) type symbol +#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 -/* allow for compilation as dll with BORLAND C++ 5.0 */ -#if defined(__BORLANDC__) && defined(_Windows) && defined(__DLL__) -# define PNG_EXPORT(type,symbol) type _export symbol +#ifndef PNGAPI +# define PNGAPI +#endif +#ifndef PNG_IMPEXP +# define PNG_IMPEXP #endif -/* allow for compilation as shared lib under BeOS */ -#ifdef __BEOSDLL__ -#define PNG_EXPORT(type,symbol) __declspec(export) type symbol +#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) type symbol +# 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 -/* User may want to use these so not in PNG_INTERNAL. Any library functions - * that are passed far data must be model independent. +/* Users may want to use these so they are not private. Any library + * functions that are passed far data must be model-independent. */ -#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_strcpy _fstrcpy -# 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) -# define png_strcpy strcpy -# define png_strlen strlen -# define png_memcmp memcmp /* SJT: added */ -# define png_memcpy memcpy -# define png_memset memset +/* 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 -/* End of memory model independent support */ -/* Just a double check that someone hasn't tried to define something +#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 > 65536) && defined(PNG_MAX_MALLOC_64K) -#undef PNG_ZBUF_SIZE -#define PNG_ZBUF_SIZE 65536 +#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K) +# undef PNG_ZBUF_SIZE +# define PNG_ZBUF_SIZE 65536L #endif -#endif /* PNGCONF_H */ +/* Added at libpng-1.2.8 */ +#endif /* PNG_VERSION_INFO_ONLY */ + +#endif /* PNGCONF_H */