/* pngconf.h - machine configurable file for libpng
*
- * libpng version 1.2.7 - September 12, 2004
+ * libpng version 1.2.20 - September 8, 2007
* For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2004 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2007 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.)
*/
#ifndef PNGCONF_H
#define PNGCONF_H
+#define PNG_1_2_X
+
+#ifdef __DMC__
+#define PNG_NO_SNPRINTF
+#endif
+
+/*
+ * PNG_USER_CONFIG has to be defined on the compiler command line. This
+ * includes the resource compiler for Windows DLL configurations.
+ */
#ifdef PNG_USER_CONFIG
+# ifndef PNG_USER_PRIVATEBUILD
+# define PNG_USER_PRIVATEBUILD
+# endif
#include "pngusr.h"
#endif
+/* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
+#ifdef PNG_CONFIGURE_LIBPNG
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#endif
+
+/*
+ * Added at libpng-1.2.8
+ *
+ * If you create a private DLL you need to define in "pngusr.h" the followings:
+ * #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
+ * the DLL was built>
+ * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
+ * #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
+ * distinguish your DLL from those of the official release. These
+ * correspond to the trailing letters that come after the version
+ * number and must match your private DLL name>
+ * e.g. // private DLL "libpng13gx.dll"
+ * #define PNG_USER_DLLFNAME_POSTFIX "gx"
+ *
+ * The following macros are also at your disposal if you want to complete the
+ * DLL VERSIONINFO structure.
+ * - PNG_USER_VERSIONINFO_COMMENTS
+ * - PNG_USER_VERSIONINFO_COMPANYNAME
+ * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
+ */
+
+#ifdef __STDC__
+#ifdef SPECIALBUILD
+# pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
+ are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
+#endif
+
+#ifdef PRIVATEBUILD
+# pragma message("PRIVATEBUILD is deprecated.\
+ Use PNG_USER_PRIVATEBUILD instead.")
+# define PNG_USER_PRIVATEBUILD PRIVATEBUILD
+#endif
+#endif /* __STDC__ */
+
+#ifndef PNG_VERSION_INFO_ONLY
+
+/* End of material added to libpng-1.2.8 */
+
+/* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble
+# define PNG_WARN_UNINITIALIZED_ROW 1
+*/
+/* End of material added at libpng-1.2.19 */
+
/* 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
* 'Cygwin' defines/defaults:
* PNG_BUILD_DLL -- (ignored) building the dll
* (no define) -- (ignored) building an application, linking to the dll
- * PNG_STATIC -- (ignored) building the static lib, or building an
+ * PNG_STATIC -- (ignored) building the static lib, or building an
* application that links to the static lib.
- * ALL_STATIC -- (ignored) building various static libs, or building an
+ * ALL_STATIC -- (ignored) building various static libs, or building an
* application that links to the static libs.
* Thus,
* a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
* PNG_BUILD_DLL
* PNG_STATIC
* (nothing) == PNG_USE_DLL
- *
+ *
* CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
- * of auto-import in binutils, we no longer need to worry about
+ * of auto-import in binutils, we no longer need to worry about
* __declspec(dllexport) / __declspec(dllimport) and friends. Therefore,
* we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
- * to __declspec() stuff. However, we DO need to worry about
+ * to __declspec() stuff. However, we DO need to worry about
* PNG_BUILD_DLL and PNG_STATIC because those change some defaults
* such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
*/
# if !defined(PNG_DLL)
# define PNG_DLL
# endif
-# endif
-# endif
+# endif
+# endif
# endif
#endif
# define PNGARG(arglist) arglist
#endif /* _NO_PROTO */
+
#endif /* OF */
#endif /* PNGARG */
*/
#ifndef MACOS
# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
- defined(THINK_C) || (defined(__SC__) && !defined(__DMC__))|| defined(TARGET_OS_MAC)
+ defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
# define MACOS
# endif
#endif
*/
/* 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.
+ * iTXt support was added. iTXt support was turned off by default through
+ * libpng-1.2.x, to support old apps that malloc the png_text structure
+ * instead of calling png_set_text() and letting libpng malloc it. It
+ * was turned on by default in libpng-1.3.0.
*/
-#ifndef PNG_iTXt_SUPPORTED
-# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
+#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
+# ifndef PNG_NO_iTXt_SUPPORTED
+# define PNG_NO_iTXt_SUPPORTED
+# endif
+# ifndef PNG_NO_READ_iTXt
# define PNG_NO_READ_iTXt
# endif
-# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
+# ifndef PNG_NO_WRITE_iTXt
# define PNG_NO_WRITE_iTXt
# endif
#endif
+#if !defined(PNG_NO_iTXt_SUPPORTED)
+# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
+# define PNG_READ_iTXt
+# endif
+# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
+# define PNG_WRITE_iTXt
+# endif
+#endif
+
/* The following support, added after version 1.0.0, can be turned off here en
* masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
* with old applications that require the length of png_struct and png_info
#endif /* PNG_READ_TRANSFORMS_SUPPORTED */
#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: */
+ !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */
+# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */
+#endif /* about interlacing capability! You'll */
+ /* still have interlacing unless you change the following line: */
-#define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */
+#define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */
#ifndef PNG_NO_READ_COMPOSITE_NODIV
# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */
-# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
+# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
# endif
#endif
+#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
/* Deprecated, will be removed from version 2.0.0.
Use PNG_MNG_FEATURES_SUPPORTED instead. */
#ifndef PNG_NO_READ_EMPTY_PLTE
# define PNG_READ_EMPTY_PLTE_SUPPORTED
#endif
+#endif
#endif /* PNG_READ_SUPPORTED */
# endif
#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
+#if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \
+ !defined(PNG_WRITE_INTERLACING_SUPPORTED)
#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant
encoders, but can cause trouble
if left undefined */
+#endif
#if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
+ !defined(PNG_WRITE_WEIGHTED_FILTER) && \
defined(PNG_FLOATING_POINT_SUPPORTED)
# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
#endif
# define PNG_WRITE_FLUSH_SUPPORTED
#endif
+#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
#ifndef PNG_NO_WRITE_EMPTY_PLTE
# define PNG_WRITE_EMPTY_PLTE_SUPPORTED
#endif
+#endif
#endif /* PNG_WRITE_SUPPORTED */
# 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 */
+/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
+ * and removed from version 1.2.20. The following will be removed
+ * from libpng-1.4.0
+*/
+
+#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)
+# ifndef PNG_OPTIMIZED_CODE_SUPPORTED
+# define PNG_OPTIMIZED_CODE_SUPPORTED
+# endif
+#endif
+
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
# ifndef PNG_ASSEMBLER_CODE_SUPPORTED
# define PNG_ASSEMBLER_CODE_SUPPORTED
# endif
+
+# if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)
+ /* work around 64-bit gcc compiler bugs in gcc-3.x */
+# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
+# define PNG_NO_MMX_CODE
+# endif
+# endif
+
+# if defined(__APPLE__)
+# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
+# define PNG_NO_MMX_CODE
+# endif
+# endif
+
+# if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))
+# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
+# define PNG_NO_MMX_CODE
+# endif
+# endif
+
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
# define PNG_MMX_CODE_SUPPORTED
# endif
-#endif
-/* 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
-*/
+#endif
+/* end of obsolete code to be removed from libpng-1.4.0 */
#if !defined(PNG_1_0_X)
#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
/* Pointers to pointers to pointers; i.e., pointer to array */
typedef char FAR * FAR * FAR * png_charppp;
+#if defined(PNG_1_0_X) || defined(PNG_1_2_X)
+/* SPC - Is this stuff deprecated? */
+/* It'll be removed as of libpng-1.3.0 - GR-P */
/* libpng typedefs for types in zlib. If zlib changes
* or another compression library is used, then change these.
* Eliminates need to change all the source files.
typedef charf * png_zcharp;
typedef charf * FAR * png_zcharpp;
typedef z_stream FAR * png_zstreamp;
+#endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */
/*
* Define PNG_BUILD_DLL if the module being built is a Windows
* 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))
+# if defined(PNG_NO_GLOBAL_ARRAYS) || \
+ (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)
# define PNG_USE_LOCAL_ARRAYS
# else
# define PNG_USE_GLOBAL_ARRAYS
# endif
#endif
-#if defined(__CYGWIN__) || defined(__WINE__)
+#if defined(__CYGWIN__)
# undef PNGAPI
-# if defined(__WINE__)
-# define PNGAPI
-# else
-# define PNGAPI __cdecl
-# endif
+# define PNGAPI __cdecl
# undef PNG_IMPEXP
# define PNG_IMPEXP
-#endif
+#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.
# else
# if 0 /* ... other platforms, with other meanings */
# endif
-# endif
-#endif
-
-#if defined(__VISAGECPP__)
-/* I don't compile with this _System linkage for wxWidgets */
-# 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];
+# 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
+# ifdef PNG_USE_GLOBAL_ARRAYS
+# ifndef PNG_EXPORT_VAR
+# define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT
+# endif
+# endif
+#endif
+
#ifndef PNG_EXPORT
# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
#endif
# define NOCHECK 0
# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
# define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
+# define png_snprintf _fsnprintf /* Added to v 1.2.19 */
# define png_strcpy _fstrcpy
# define png_strncpy _fstrncpy /* Added to v 1.2.6 */
# define png_strlen _fstrlen
#else /* use the usual functions */
# define CVT_PTR(ptr) (ptr)
# define CVT_PTR_NOCHECK(ptr) (ptr)
+# ifndef PNG_NO_SNPRINTF
+# ifdef _MSC_VER
+# define png_snprintf _snprintf /* Added to v 1.2.19 */
+# define png_snprintf2 _snprintf
+# define png_snprintf6 _snprintf
+# else
+# define png_snprintf snprintf /* Added to v 1.2.19 */
+# define png_snprintf2 snprintf
+# define png_snprintf6 snprintf
+# endif
+# else
+ /* You don't have or don't want to use snprintf(). Caution: Using
+ * sprintf instead of snprintf exposes your application to accidental
+ * or malevolent buffer overflows. If you don't have snprintf()
+ * as a general rule you should provide one (you can get one from
+ * Portable OpenSSH). */
+# define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)
+# define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)
+# define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
+ sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
+# endif
# define png_strcpy strcpy
# define png_strncpy strncpy /* Added to v 1.2.6 */
# define png_strlen strlen
# define PNG_ZBUF_SIZE 65536L
#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
-#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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