+
/* pngconf.h - machine configurable file for libpng
*
- * libpng 1.2.5rc3 - September 18, 2002
+ * libpng version 1.4.4 - September 23, 2010
* For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2002 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
#ifndef PNGCONF_H
#define PNGCONF_H
+#ifdef __DMC__
+#define PNG_NO_SNPRINTF
+#endif
+
+#ifndef PNG_NO_LIMITS_H
+# include <limits.h>
+#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 <Describes by whom and why this version of
+ * the DLL was built>
+ * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
+ * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
+ * distinguish your DLL from those of the official release. These
+ * correspond to the trailing letters that come after the version
+ * number and must match your private DLL name>
+ * e.g. // private DLL "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
# 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
* 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.
+ * 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
* #define PNG_NO_STDIO
*/
-#if defined(_WIN32_WCE)
-# include <windows.h>
- /* 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
# endif
# endif
# else
-# if !defined(_WIN32_WCE)
-/* "stdio.h" functions are not supported on WindowsCE */
-# include <stdio.h>
-# endif
+# include <stdio.h>
# 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.
#ifdef _NO_PROTO
# define PNGARG(arglist) ()
-# ifndef PNG_TYPECAST_NULL
-# define PNG_TYPECAST_NULL
-# endif
#else
# define PNGARG(arglist) arglist
#endif /* _NO_PROTO */
# 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 <sys/types.h>
#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
- __png.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 <setjmp.h>
# ifdef __linux__
# ifdef PNG_SAVE_BSD_SOURCE
+# ifdef _BSD_SOURCE
+# undef _BSD_SOURCE
+# endif
# define _BSD_SOURCE
# undef PNG_SAVE_BSD_SOURCE
# endif
#endif
/* Other defines for things like memory and the like can go here. */
-#ifdef PNG_INTERNAL
-
-#include <stdlib.h>
-/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
- * aren't usually used outside the library (as far as I know), so it is
- * debatable if they should be exported at all. In the future, when it is
- * possible to have run-time registry of chunk-handling functions, some of
- * these will be made available again.
-#define PNG_EXTERN extern
+/* 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.
*/
-#define PNG_EXTERN
-/* Other defines specific to compilers can go here. Try to keep
- * them inside an appropriate ifdef/endif pair for portability.
+/* Prior to libpng-1.4.2, these were PNG_DITHER_*_BITS
+ * These migration aids will be removed from libpng-1.5.0.
*/
-
-#if defined(PNG_FLOATING_POINT_SUPPORTED)
-# if defined(MACOS)
- /* We need to check that <math.h> hasn't already been included earlier
- * as it seems it doesn't agree with <fp.h>, yet we should really use
- * <fp.h> if possible.
- */
-# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
-# include <fp.h>
-# endif
-# else
-# include <math.h>
-# endif
-# if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
- /* Amiga SAS/C: We must include builtin FPU functions when compiling using
- * MATH=68881
- */
-# include <m68881.h>
-# endif
-#endif
-
-/* Codewarrior on NT has linking problems without this. */
-#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
-# define PNG_ALWAYS_EXTERN
+#ifdef PNG_DITHER_RED_BITS
+# define PNG_QUANTIZE_RED_BITS PNG_DITHER_RED_BITS
#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 <mem.h>
-# include "alloc.h"
+#ifdef PNG_DITHER_GREEN_BITS
+# define PNG_QUANTIZE_GREEN_BITS PNG_DITHER_GREEN_BITS
#endif
-
-#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
- defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
-# include <malloc.h>
+#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
# 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
/* 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 is supported. It is turned off by default, to support old apps
- * that malloc the png_text structure instead of calling png_set_text()
- * and letting libpng malloc it. It will be turned on by default in
- * libpng-1.3.0.
- */
-
-#ifndef PNG_iTXt_SUPPORTED
-# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
-# define PNG_NO_READ_iTXt
-# endif
-# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
-# define PNG_NO_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
# 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
# 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 line: */
+ /* 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
-/* 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
+#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
# endif
#endif /* PNG_WRITE_TRANSFORMS_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
+#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
-#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant
- encoders, but can cause trouble
- if left undefined */
-
#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_1_0_X
-#ifndef PNG_NO_ERROR_NUMBERS
-#define PNG_ERROR_NUMBERS_SUPPORTED
-#endif
-#endif /* PNG_1_0_X */
-
#ifndef PNG_NO_WRITE_FLUSH
# define PNG_WRITE_FLUSH_SUPPORTED
#endif
-/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
-#ifndef PNG_NO_WRITE_EMPTY_PLTE
-# define PNG_WRITE_EMPTY_PLTE_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_SUPPORTED */
-#ifndef PNG_NO_STDIO
+#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
# define PNG_EASY_ACCESS_SUPPORTED
#endif
-/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
- even when PNG_USE_PNGVCRD or PNG_USE_PNGGCCRD is not defined */
-#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
-# ifndef PNG_ASSEMBLER_CODE_SUPPORTED
-# define PNG_ASSEMBLER_CODE_SUPPORTED
+/* 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
-# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
-# define PNG_MMX_CODE_SUPPORTED
+ /* 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
-/* If you are sure that you don't need thread safety and you are compiling
- with PNG_USE_PNGCCRD for an MMX application, you can define this for
- faster execution. See pnggccrd.c.
-#define PNG_THREAD_UNSAFE_OK
-*/
+/* Added at libpng-1.2.43 */
+#ifndef PNG_USER_LIMITS_SUPPORTED
+# ifndef PNG_NO_USER_LIMITS
+# define PNG_USER_LIMITS_SUPPORTED
+# endif
+#endif
-#if !defined(PNG_1_0_X)
-#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
-# define PNG_USER_MEM_SUPPORTED
+/* 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
-#endif /* PNG_1_0_X */
/* 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
/* This is only for PowerPC big-endian and 680x0 systems */
/* some testing */
/*
-#ifdef PNG_READ_SUPPORTED
-# ifndef PNG_PNG_READ_BIG_ENDIAN_SUPPORTED
-# define PNG_READ_BIG_ENDIAN_SUPPORTED
-# endif
+#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
-*/
+#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,
* 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_NO_READ_tEXt
# define PNG_NO_READ_zTXt
#endif
+
#ifndef PNG_NO_READ_bKGD
# define PNG_READ_bKGD_SUPPORTED
# define PNG_bKGD_SUPPORTED
# 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 */
#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_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
# 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.
# 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 <time.h>
-# endif
#endif
/* Some typedefs to get us started. These should be safe on most of 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.
+ * 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
*/
/* 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
*/
/* MSC Medium model */
-#if defined(FAR)
-# if defined(M_I86MM)
+#ifdef FAR
+# ifdef M_I86MM
# define USE_FAR_KEYWORD
# define FARDATA FAR
# include <dos.h>
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;
/* 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.
- */
-typedef charf * png_zcharp;
-typedef charf * FAR * png_zcharpp;
-typedef z_stream FAR * png_zstreamp;
-
-/*
- * 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.
#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))
-# define PNG_USE_LOCAL_ARRAYS
-# else
-# define PNG_USE_GLOBAL_ARRAYS
-# endif
-#endif
-
-#if defined(__CYGWIN__) || defined(__WINE__)
-# undef PNGAPI
-# if defined(__WINE__)
-# define PNGAPI
-# else
-# define PNGAPI __cdecl
-# endif
-# 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.
* zlib and your applications the same way you build libpng.
*/
-#ifndef PNGAPI
+#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
(( defined(_Windows) || defined(_WINDOWS) || \
defined(WIN32) || defined(_WIN32) || defined(__WIN32__) ))
-# if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
-# define PNGAPI __cdecl
-# else
-# define PNGAPI _cdecl
+# 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) || \
# 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
+# ifndef PNG_IMPEXP
-# 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__)
-# define PNGAPI _System
-# define PNG_IMPEXP
-# else
-# if 0 /* ... other platforms, with other meanings */
+# 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 PNGAPI
-# define PNG_IMPEXP
+# 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
-#endif
-#endif
-#if defined(__VISAGECPP__)
-/* I don't compile with this _System linkage for wxWindows */
-# ifdef PNGAPI
-# undef PNGAPI
-# endif
-# define PNGAPI _Optlink
-# define PNG_IMPEXP
-# define PNG_USE_LOCAL_ARRAYS
-# ifdef PNG_USE_GLOBAL_ARRAYS
-# undef PNG_USE_GLOBAL_ARRAYS
-# endif
-extern const char png_libpng_ver[18];
+# 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 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
-#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
-#ifndef PNG_ABORT
-# define PNG_ABORT() abort()
+ /* 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
-#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)
+/* 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
-#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_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
-#endif
-/* End of memory model independent support */
+# 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 > 65536) && defined(PNG_MAX_MALLOC_64K)
+#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K)
# undef PNG_ZBUF_SIZE
-# define PNG_ZBUF_SIZE 65536
-#endif
-
-#ifdef PNG_READ_SUPPORTED
-/* Prior to libpng-1.0.9, this block was in pngasmrd.h */
-#if defined(PNG_INTERNAL)
-
-/* These are the default thresholds before the MMX code kicks in; if either
- * rowbytes or bitdepth is below the threshold, plain C code is used. These
- * can be overridden at runtime via the png_set_mmx_thresholds() call in
- * libpng 1.2.0 and later. The values below were chosen by Intel.
- */
-
-#ifndef PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT
-# define PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT 128 /* >= */
-#endif
-#ifndef PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT
-# define PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT 9 /* >= */
-#endif
-
-/* Set this in the makefile for VC++ on Pentium, not here. */
-/* Platform must be Pentium. Makefile must assemble and load pngvcrd.c .
- * MMX will be detected at run time and used if present.
- */
-#ifdef PNG_USE_PNGVCRD
-# define PNG_HAVE_ASSEMBLER_COMBINE_ROW
-# define PNG_HAVE_ASSEMBLER_READ_INTERLACE
-# define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
+# define PNG_ZBUF_SIZE 65536L
#endif
-/* Set this in the makefile for gcc/as on Pentium, not here. */
-/* Platform must be Pentium. Makefile must assemble and load pnggccrd.c .
- * MMX will be detected at run time and used if present.
- */
-#ifdef PNG_USE_PNGGCCRD
-# define PNG_HAVE_ASSEMBLER_COMBINE_ROW
-# define PNG_HAVE_ASSEMBLER_READ_INTERLACE
-# define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
-#endif
-/* - see pnggccrd.c for info about what is currently enabled */
-#endif /* PNG_INTERNAL */
-#endif /* PNG_READ_SUPPORTED */
+/* Added at libpng-1.2.8 */
+#endif /* PNG_VERSION_INFO_ONLY */
#endif /* PNGCONF_H */
-
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