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1331 lines
40 KiB
1331 lines
40 KiB
/* pngconf.h - machine configurable file for libpng |
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* |
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* libpng 1.2.1 - December 12, 2001 |
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* For conditions of distribution and use, see copyright notice in png.h |
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* Copyright (c) 1998-2001 Glenn Randers-Pehrson |
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) |
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) |
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*/ |
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/* Any machine specific code is near the front of this file, so if you |
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* are configuring libpng for a machine, you may want to read the section |
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* starting here down to where it starts to typedef png_color, png_text, |
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* and png_info. |
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*/ |
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#ifndef PNGCONF_H |
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#define PNGCONF_H |
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/* This is the size of the compression buffer, and thus the size of |
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* an IDAT chunk. Make this whatever size you feel is best for your |
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* machine. One of these will be allocated per png_struct. When this |
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* is full, it writes the data to the disk, and does some other |
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* calculations. Making this an extremely small size will slow |
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* the library down, but you may want to experiment to determine |
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* where it becomes significant, if you are concerned with memory |
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* usage. Note that zlib allocates at least 32Kb also. For readers, |
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* this describes the size of the buffer available to read the data in. |
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* Unless this gets smaller than the size of a row (compressed), |
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* it should not make much difference how big this is. |
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*/ |
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#ifndef PNG_ZBUF_SIZE |
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# define PNG_ZBUF_SIZE 8192 |
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#endif |
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/* Enable if you want a write-only libpng */ |
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#ifndef PNG_NO_READ_SUPPORTED |
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# define PNG_READ_SUPPORTED |
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#endif |
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/* Enable if you want a read-only libpng */ |
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#ifndef PNG_NO_WRITE_SUPPORTED |
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# define PNG_WRITE_SUPPORTED |
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#endif |
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/* Enabled by default in 1.2.0. You can disable this if you don't need to |
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support PNGs that are embedded in MNG datastreams */ |
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#ifndef PNG_NO_MNG_FEATURES |
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# ifndef PNG_MNG_FEATURES_SUPPORTED |
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# define PNG_MNG_FEATURES_SUPPORTED |
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# endif |
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#endif |
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#ifndef PNG_NO_FLOATING_POINT_SUPPORTED |
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# ifndef PNG_FLOATING_POINT_SUPPORTED |
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# define PNG_FLOATING_POINT_SUPPORTED |
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# endif |
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#endif |
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/* If you are running on a machine where you cannot allocate more |
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* than 64K of memory at once, uncomment this. While libpng will not |
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* normally need that much memory in a chunk (unless you load up a very |
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* large file), zlib needs to know how big of a chunk it can use, and |
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* libpng thus makes sure to check any memory allocation to verify it |
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* will fit into memory. |
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#define PNG_MAX_MALLOC_64K |
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*/ |
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#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) |
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# define PNG_MAX_MALLOC_64K |
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#endif |
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/* Special munging to support doing things the 'cygwin' way: |
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* 'Normal' png-on-win32 defines/defaults: |
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* PNG_BUILD_DLL -- building dll |
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* PNG_USE_DLL -- building an application, linking to dll |
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* (no define) -- building static library, or building an |
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* application and linking to the static lib |
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* 'Cygwin' defines/defaults: |
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* PNG_BUILD_DLL -- building the dll |
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* (no define) -- building an application, linking to the dll |
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* PNG_STATIC -- building the static lib, or building an application |
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* that links to the static lib. |
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* ALL_STATIC -- building various static libs, or building an application |
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* that links to the static libs. |
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* Thus, |
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* a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and |
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* this bit of #ifdefs will define the 'correct' config variables based on |
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* that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but |
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* unnecessary. |
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* |
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* Also, the precedence order is: |
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* ALL_STATIC (since we can't #undef something outside our namespace) |
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* PNG_BUILD_DLL |
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* PNG_STATIC |
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* (nothing) == PNG_USE_DLL |
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*/ |
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#if defined(__CYGWIN__) |
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# if defined(ALL_STATIC) |
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# if defined(PNG_BUILD_DLL) |
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# undef PNG_BUILD_DLL |
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# endif |
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# if defined(PNG_USE_DLL) |
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# undef PNG_USE_DLL |
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# endif |
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# if defined(PNG_DLL) |
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# undef PNG_DLL |
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# endif |
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# if !defined(PNG_STATIC) |
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# define PNG_STATIC |
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# endif |
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# else |
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# if defined (PNG_BUILD_DLL) |
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# if defined(PNG_STATIC) |
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# undef PNG_STATIC |
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# endif |
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# if defined(PNG_USE_DLL) |
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# undef PNG_USE_DLL |
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# endif |
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# if !defined(PNG_DLL) |
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# define PNG_DLL |
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# endif |
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# else |
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# if defined(PNG_STATIC) |
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# if defined(PNG_USE_DLL) |
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# undef PNG_USE_DLL |
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# endif |
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# if defined(PNG_DLL) |
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# undef PNG_DLL |
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# endif |
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# else |
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# if !defined(PNG_USE_DLL) |
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# define PNG_USE_DLL |
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# endif |
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# if !defined(PNG_DLL) |
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# define PNG_DLL |
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# endif |
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# endif |
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# endif |
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# endif |
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#endif |
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/* This protects us against compilers that run on a windowing system |
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* and thus don't have or would rather us not use the stdio types: |
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* stdin, stdout, and stderr. The only one currently used is stderr |
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* in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will |
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* prevent these from being compiled and used. #defining PNG_NO_STDIO |
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* will also prevent these, plus will prevent the entire set of stdio |
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* macros and functions (FILE *, printf, etc.) from being compiled and used, |
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* unless (PNG_DEBUG > 0) has been #defined. |
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* |
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* #define PNG_NO_CONSOLE_IO |
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* #define PNG_NO_STDIO |
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*/ |
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#if defined(_WIN32_WCE) |
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# include <windows.h> |
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/* Console I/O functions are not supported on WindowsCE */ |
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# define PNG_NO_CONSOLE_IO |
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# ifdef PNG_DEBUG |
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# undef PNG_DEBUG |
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# endif |
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#endif |
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#ifdef PNG_BUILD_DLL |
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# ifndef PNG_CONSOLE_IO_SUPPORTED |
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# ifndef PNG_NO_CONSOLE_IO |
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# define PNG_NO_CONSOLE_IO |
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# endif |
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# endif |
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#endif |
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# ifdef PNG_NO_STDIO |
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# ifndef PNG_NO_CONSOLE_IO |
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# define PNG_NO_CONSOLE_IO |
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# endif |
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# ifdef PNG_DEBUG |
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# if (PNG_DEBUG > 0) |
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# include <stdio.h> |
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# endif |
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# endif |
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# else |
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# if !defined(_WIN32_WCE) |
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/* "stdio.h" functions are not supported on WindowsCE */ |
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# include <stdio.h> |
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# endif |
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# endif |
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/* This macro protects us against machines that don't have function |
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* prototypes (ie K&R style headers). If your compiler does not handle |
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* function prototypes, define this macro and use the included ansi2knr. |
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* I've always been able to use _NO_PROTO as the indicator, but you may |
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* need to drag the empty declaration out in front of here, or change the |
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* ifdef to suit your own needs. |
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*/ |
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#ifndef PNGARG |
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#ifdef OF /* zlib prototype munger */ |
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# define PNGARG(arglist) OF(arglist) |
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#else |
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#ifdef _NO_PROTO |
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# define PNGARG(arglist) () |
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# ifndef PNG_TYPECAST_NULL |
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# define PNG_TYPECAST_NULL |
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# endif |
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#else |
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# define PNGARG(arglist) arglist |
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#endif /* _NO_PROTO */ |
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#endif /* OF */ |
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#endif /* PNGARG */ |
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/* Try to determine if we are compiling on a Mac. Note that testing for |
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* just __MWERKS__ is not good enough, because the Codewarrior is now used |
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* on non-Mac platforms. |
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*/ |
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#ifndef MACOS |
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# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ |
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defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) |
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# define MACOS |
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# endif |
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#endif |
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/* enough people need this for various reasons to include it here */ |
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#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE) |
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# include <sys/types.h> |
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#endif |
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#if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED) |
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# define PNG_SETJMP_SUPPORTED |
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#endif |
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#ifdef PNG_SETJMP_SUPPORTED |
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/* This is an attempt to force a single setjmp behaviour on Linux. If |
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* the X config stuff didn't define _BSD_SOURCE we wouldn't need this. |
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*/ |
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# ifdef __linux__ |
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# ifdef _BSD_SOURCE |
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# define PNG_SAVE_BSD_SOURCE |
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# undef _BSD_SOURCE |
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# endif |
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# ifdef _SETJMP_H |
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__png.h__ already includes setjmp.h; |
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__dont__ include it again.; |
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# endif |
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# endif /* __linux__ */ |
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/* include setjmp.h for error handling */ |
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# include <setjmp.h> |
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# ifdef __linux__ |
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# ifdef PNG_SAVE_BSD_SOURCE |
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# define _BSD_SOURCE |
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# undef PNG_SAVE_BSD_SOURCE |
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# endif |
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# endif /* __linux__ */ |
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#endif /* PNG_SETJMP_SUPPORTED */ |
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#ifdef BSD |
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# include <strings.h> |
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#else |
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# include <string.h> |
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#endif |
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/* Other defines for things like memory and the like can go here. */ |
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#ifdef PNG_INTERNAL |
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#include <stdlib.h> |
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/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which |
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* aren't usually used outside the library (as far as I know), so it is |
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* debatable if they should be exported at all. In the future, when it is |
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* possible to have run-time registry of chunk-handling functions, some of |
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* these will be made available again. |
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#define PNG_EXTERN extern |
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*/ |
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#define PNG_EXTERN |
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/* Other defines specific to compilers can go here. Try to keep |
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* them inside an appropriate ifdef/endif pair for portability. |
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*/ |
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#if defined(PNG_FLOATING_POINT_SUPPORTED) |
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# if defined(MACOS) |
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/* We need to check that <math.h> hasn't already been included earlier |
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* as it seems it doesn't agree with <fp.h>, yet we should really use |
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* <fp.h> if possible. |
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*/ |
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# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) |
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# include <fp.h> |
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# endif |
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# else |
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# include <math.h> |
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# endif |
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# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) |
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/* Amiga SAS/C: We must include builtin FPU functions when compiling using |
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* MATH=68881 |
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*/ |
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# include <m68881.h> |
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# endif |
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#endif |
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/* Codewarrior on NT has linking problems without this. */ |
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#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__) |
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# define PNG_ALWAYS_EXTERN |
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#endif |
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/* For some reason, Borland C++ defines memcmp, etc. in mem.h, not |
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* stdlib.h like it should (I think). Or perhaps this is a C++ |
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* "feature"? |
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*/ |
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#ifdef __TURBOC__ |
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# include <mem.h> |
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# include "alloc.h" |
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#endif |
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#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ |
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defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) |
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# include <malloc.h> |
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#endif |
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/* This controls how fine the dithering gets. As this allocates |
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* a largish chunk of memory (32K), those who are not as concerned |
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* with dithering quality can decrease some or all of these. |
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*/ |
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#ifndef PNG_DITHER_RED_BITS |
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# define PNG_DITHER_RED_BITS 5 |
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#endif |
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#ifndef PNG_DITHER_GREEN_BITS |
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# define PNG_DITHER_GREEN_BITS 5 |
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#endif |
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#ifndef PNG_DITHER_BLUE_BITS |
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# define PNG_DITHER_BLUE_BITS 5 |
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#endif |
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/* This controls how fine the gamma correction becomes when you |
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* are only interested in 8 bits anyway. Increasing this value |
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* results in more memory being used, and more pow() functions |
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* being called to fill in the gamma tables. Don't set this value |
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* less then 8, and even that may not work (I haven't tested it). |
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*/ |
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#ifndef PNG_MAX_GAMMA_8 |
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# define PNG_MAX_GAMMA_8 11 |
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#endif |
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/* This controls how much a difference in gamma we can tolerate before |
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* we actually start doing gamma conversion. |
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*/ |
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#ifndef PNG_GAMMA_THRESHOLD |
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# define PNG_GAMMA_THRESHOLD 0.05 |
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#endif |
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#endif /* PNG_INTERNAL */ |
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/* The following uses const char * instead of char * for error |
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* and warning message functions, so some compilers won't complain. |
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* If you do not want to use const, define PNG_NO_CONST here. |
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*/ |
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#ifndef PNG_NO_CONST |
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# define PNG_CONST const |
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#else |
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# define PNG_CONST |
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#endif |
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/* The following defines give you the ability to remove code from the |
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* library that you will not be using. I wish I could figure out how to |
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* automate this, but I can't do that without making it seriously hard |
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* on the users. So if you are not using an ability, change the #define |
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* to and #undef, and that part of the library will not be compiled. If |
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* your linker can't find a function, you may want to make sure the |
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* ability is defined here. Some of these depend upon some others being |
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* defined. I haven't figured out all the interactions here, so you may |
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* have to experiment awhile to get everything to compile. If you are |
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* creating or using a shared library, you probably shouldn't touch this, |
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* as it will affect the size of the structures, and this will cause bad |
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* things to happen if the library and/or application ever change. |
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*/ |
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/* Any features you will not be using can be undef'ed here */ |
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/* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user |
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* to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS |
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* on the compile line, then pick and choose which ones to define without |
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* having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED |
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* if you only want to have a png-compliant reader/writer but don't need |
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* any of the extra transformations. This saves about 80 kbytes in a |
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* typical installation of the library. (PNG_NO_* form added in version |
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* 1.0.1c, for consistency) |
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*/ |
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/* The size of the png_text structure changed in libpng-1.0.6 when |
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* iTXt is supported. It is turned off by default, to support old apps |
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* that malloc the png_text structure instead of calling png_set_text() |
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* and letting libpng malloc it. It will be turned on by default in |
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* libpng-1.3.0. |
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*/ |
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#ifndef PNG_iTXt_SUPPORTED |
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# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt) |
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# define PNG_NO_READ_iTXt |
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# endif |
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# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt) |
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# define PNG_NO_WRITE_iTXt |
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# endif |
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#endif |
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/* The following support, added after version 1.0.0, can be turned off here en |
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* masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility |
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* with old applications that require the length of png_struct and png_info |
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* to remain unchanged. |
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*/ |
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#ifdef PNG_LEGACY_SUPPORTED |
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# define PNG_NO_FREE_ME |
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# define PNG_NO_READ_UNKNOWN_CHUNKS |
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# define PNG_NO_WRITE_UNKNOWN_CHUNKS |
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# define PNG_NO_READ_USER_CHUNKS |
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# define PNG_NO_READ_iCCP |
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# define PNG_NO_WRITE_iCCP |
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# define PNG_NO_READ_iTXt |
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# define PNG_NO_WRITE_iTXt |
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# define PNG_NO_READ_sCAL |
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# define PNG_NO_WRITE_sCAL |
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# define PNG_NO_READ_sPLT |
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# define PNG_NO_WRITE_sPLT |
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# define PNG_NO_INFO_IMAGE |
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# define PNG_NO_READ_RGB_TO_GRAY |
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# define PNG_NO_READ_USER_TRANSFORM |
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# define PNG_NO_WRITE_USER_TRANSFORM |
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# define PNG_NO_USER_MEM |
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# define PNG_NO_READ_EMPTY_PLTE |
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# define PNG_NO_MNG_FEATURES |
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# define PNG_NO_FIXED_POINT_SUPPORTED |
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#endif |
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/* Ignore attempt to turn off both floating and fixed point support */ |
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#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ |
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!defined(PNG_NO_FIXED_POINT_SUPPORTED) |
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# define PNG_FIXED_POINT_SUPPORTED |
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#endif |
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#ifndef PNG_NO_FREE_ME |
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# define PNG_FREE_ME_SUPPORTED |
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#endif |
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#if defined(PNG_READ_SUPPORTED) |
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#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ |
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!defined(PNG_NO_READ_TRANSFORMS) |
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# define PNG_READ_TRANSFORMS_SUPPORTED |
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#endif |
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#ifdef PNG_READ_TRANSFORMS_SUPPORTED |
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# ifndef PNG_NO_READ_EXPAND |
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# define PNG_READ_EXPAND_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_SHIFT |
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# define PNG_READ_SHIFT_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_PACK |
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# define PNG_READ_PACK_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_BGR |
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# define PNG_READ_BGR_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_SWAP |
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# define PNG_READ_SWAP_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_PACKSWAP |
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# define PNG_READ_PACKSWAP_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_INVERT |
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# define PNG_READ_INVERT_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_DITHER |
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# define PNG_READ_DITHER_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_BACKGROUND |
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# define PNG_READ_BACKGROUND_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_16_TO_8 |
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# define PNG_READ_16_TO_8_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_FILLER |
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# define PNG_READ_FILLER_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_GAMMA |
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# define PNG_READ_GAMMA_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_GRAY_TO_RGB |
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# define PNG_READ_GRAY_TO_RGB_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_SWAP_ALPHA |
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# define PNG_READ_SWAP_ALPHA_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_INVERT_ALPHA |
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# define PNG_READ_INVERT_ALPHA_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_STRIP_ALPHA |
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# define PNG_READ_STRIP_ALPHA_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_USER_TRANSFORM |
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# define PNG_READ_USER_TRANSFORM_SUPPORTED |
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# endif |
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# ifndef PNG_NO_READ_RGB_TO_GRAY |
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# define PNG_READ_RGB_TO_GRAY_SUPPORTED |
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# endif |
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#endif /* PNG_READ_TRANSFORMS_SUPPORTED */ |
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#if !defined(PNG_NO_PROGRESSIVE_READ) && \ |
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!defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */ |
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# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ |
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#endif /* about interlacing capability! You'll */ |
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/* still have interlacing unless you change the following line: */ |
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#define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */ |
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#ifndef PNG_NO_READ_COMPOSITE_NODIV |
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# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ |
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# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ |
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# endif |
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#endif |
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/* Deprecated, will be removed from version 2.0.0. |
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Use PNG_MNG_FEATURES_SUPPORTED instead. */ |
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#ifndef PNG_NO_READ_EMPTY_PLTE |
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# define PNG_READ_EMPTY_PLTE_SUPPORTED |
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#endif |
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#endif /* PNG_READ_SUPPORTED */ |
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#if defined(PNG_WRITE_SUPPORTED) |
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# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ |
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!defined(PNG_NO_WRITE_TRANSFORMS) |
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# define PNG_WRITE_TRANSFORMS_SUPPORTED |
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#endif |
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#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED |
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# ifndef PNG_NO_WRITE_SHIFT |
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# 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_READ_USER_TRANSFORM_SUPPORTED) || \ |
|
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
|
# ifndef PNG_NO_USER_TRANSFORM_PTR |
|
# define PNG_USER_TRANSFORM_PTR_SUPPORTED |
|
# endif |
|
#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_FLOATING_POINT_SUPPORTED) |
|
# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED |
|
#endif |
|
|
|
#ifndef PNG_NO_ERROR_NUMBERS |
|
#define PNG_ERROR_NUMBERS_SUPPORTED |
|
#endif |
|
|
|
#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 |
|
#endif |
|
|
|
#endif /* PNG_WRITE_SUPPORTED */ |
|
|
|
#ifndef PNG_NO_STDIO |
|
# define PNG_TIME_RFC1123_SUPPORTED |
|
#endif |
|
|
|
/* This adds extra functions in pngget.c for accessing data from the |
|
* info pointer (added in version 0.99) |
|
* png_get_image_width() |
|
* png_get_image_height() |
|
* png_get_bit_depth() |
|
* png_get_color_type() |
|
* png_get_compression_type() |
|
* png_get_filter_type() |
|
* png_get_interlace_type() |
|
* png_get_pixel_aspect_ratio() |
|
* png_get_pixels_per_meter() |
|
* png_get_x_offset_pixels() |
|
* png_get_y_offset_pixels() |
|
* png_get_x_offset_microns() |
|
* png_get_y_offset_microns() |
|
*/ |
|
#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED) |
|
# define PNG_EASY_ACCESS_SUPPORTED |
|
#endif |
|
|
|
/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 |
|
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 |
|
# 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 |
|
*/ |
|
|
|
#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) |
|
# define PNG_USER_MEM_SUPPORTED |
|
#endif |
|
|
|
/* These are currently experimental features, define them if you want */ |
|
|
|
/* very little testing */ |
|
/* |
|
#ifdef PNG_READ_SUPPORTED |
|
# ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED |
|
# define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED |
|
# endif |
|
#endif |
|
*/ |
|
|
|
/* This is only for PowerPC big-endian and 680x0 systems */ |
|
/* some testing */ |
|
/* |
|
#ifdef PNG_READ_SUPPORTED |
|
# ifndef PNG_PNG_READ_BIG_ENDIAN_SUPPORTED |
|
# define PNG_READ_BIG_ENDIAN_SUPPORTED |
|
# endif |
|
#endif |
|
*/ |
|
|
|
/* Buggy compilers (e.g., gcc 2.7.2.2) need this */ |
|
/* |
|
#define PNG_NO_POINTER_INDEXING |
|
*/ |
|
|
|
/* These functions are turned off by default, as they will be phased out. */ |
|
/* |
|
#define PNG_USELESS_TESTS_SUPPORTED |
|
#define PNG_CORRECT_PALETTE_SUPPORTED |
|
*/ |
|
|
|
/* Any chunks you are not interested in, you can undef here. The |
|
* ones that allocate memory may be expecially important (hIST, |
|
* tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info |
|
* a bit smaller. |
|
*/ |
|
|
|
#if defined(PNG_READ_SUPPORTED) && \ |
|
!defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ |
|
!defined(PNG_NO_READ_ANCILLARY_CHUNKS) |
|
# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED |
|
#endif |
|
|
|
#if defined(PNG_WRITE_SUPPORTED) && \ |
|
!defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ |
|
!defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) |
|
# define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED |
|
#endif |
|
|
|
#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED |
|
|
|
#ifdef PNG_NO_READ_TEXT |
|
# define PNG_NO_READ_iTXt |
|
# define PNG_NO_READ_tEXt |
|
# define PNG_NO_READ_zTXt |
|
#endif |
|
#ifndef PNG_NO_READ_bKGD |
|
# define PNG_READ_bKGD_SUPPORTED |
|
# define PNG_bKGD_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_cHRM |
|
# define PNG_READ_cHRM_SUPPORTED |
|
# define PNG_cHRM_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_gAMA |
|
# define PNG_READ_gAMA_SUPPORTED |
|
# define PNG_gAMA_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_hIST |
|
# define PNG_READ_hIST_SUPPORTED |
|
# define PNG_hIST_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_iCCP |
|
# define PNG_READ_iCCP_SUPPORTED |
|
# define PNG_iCCP_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_iTXt |
|
# ifndef PNG_READ_iTXt_SUPPORTED |
|
# define PNG_READ_iTXt_SUPPORTED |
|
# endif |
|
# ifndef PNG_iTXt_SUPPORTED |
|
# define PNG_iTXt_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_READ_oFFs |
|
# define PNG_READ_oFFs_SUPPORTED |
|
# define PNG_oFFs_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_pCAL |
|
# define PNG_READ_pCAL_SUPPORTED |
|
# define PNG_pCAL_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_sCAL |
|
# define PNG_READ_sCAL_SUPPORTED |
|
# define PNG_sCAL_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_pHYs |
|
# define PNG_READ_pHYs_SUPPORTED |
|
# define PNG_pHYs_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_sBIT |
|
# define PNG_READ_sBIT_SUPPORTED |
|
# define PNG_sBIT_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_sPLT |
|
# define PNG_READ_sPLT_SUPPORTED |
|
# define PNG_sPLT_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_sRGB |
|
# define PNG_READ_sRGB_SUPPORTED |
|
# define PNG_sRGB_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_tEXt |
|
# define PNG_READ_tEXt_SUPPORTED |
|
# define PNG_tEXt_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_tIME |
|
# define PNG_READ_tIME_SUPPORTED |
|
# define PNG_tIME_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_tRNS |
|
# define PNG_READ_tRNS_SUPPORTED |
|
# define PNG_tRNS_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_zTXt |
|
# define PNG_READ_zTXt_SUPPORTED |
|
# define PNG_zTXt_SUPPORTED |
|
#endif |
|
#ifndef PNG_NO_READ_UNKNOWN_CHUNKS |
|
# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED |
|
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED |
|
# define PNG_UNKNOWN_CHUNKS_SUPPORTED |
|
# endif |
|
# ifndef PNG_NO_HANDLE_AS_UNKNOWN |
|
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
|
# endif |
|
#endif |
|
#if !defined(PNG_NO_READ_USER_CHUNKS) && \ |
|
defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) |
|
# define PNG_READ_USER_CHUNKS_SUPPORTED |
|
# define PNG_USER_CHUNKS_SUPPORTED |
|
# ifdef PNG_NO_READ_UNKNOWN_CHUNKS |
|
# undef PNG_NO_READ_UNKNOWN_CHUNKS |
|
# endif |
|
# ifdef PNG_NO_HANDLE_AS_UNKNOWN |
|
# undef PNG_NO_HANDLE_AS_UNKNOWN |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_READ_OPT_PLTE |
|
# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ |
|
#endif /* optional PLTE chunk in RGB and RGBA images */ |
|
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ |
|
defined(PNG_READ_zTXt_SUPPORTED) |
|
# define PNG_READ_TEXT_SUPPORTED |
|
# define PNG_TEXT_SUPPORTED |
|
#endif |
|
|
|
#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ |
|
|
|
#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED |
|
|
|
#ifdef PNG_NO_WRITE_TEXT |
|
# define PNG_NO_WRITE_iTXt |
|
# define PNG_NO_WRITE_tEXt |
|
# define PNG_NO_WRITE_zTXt |
|
#endif |
|
#ifndef PNG_NO_WRITE_bKGD |
|
# define PNG_WRITE_bKGD_SUPPORTED |
|
# ifndef PNG_bKGD_SUPPORTED |
|
# define PNG_bKGD_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_cHRM |
|
# define PNG_WRITE_cHRM_SUPPORTED |
|
# ifndef PNG_cHRM_SUPPORTED |
|
# define PNG_cHRM_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_gAMA |
|
# define PNG_WRITE_gAMA_SUPPORTED |
|
# ifndef PNG_gAMA_SUPPORTED |
|
# define PNG_gAMA_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_hIST |
|
# define PNG_WRITE_hIST_SUPPORTED |
|
# ifndef PNG_hIST_SUPPORTED |
|
# define PNG_hIST_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_iCCP |
|
# define PNG_WRITE_iCCP_SUPPORTED |
|
# ifndef PNG_iCCP_SUPPORTED |
|
# define PNG_iCCP_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_iTXt |
|
# ifndef PNG_WRITE_iTXt_SUPPORTED |
|
# define PNG_WRITE_iTXt_SUPPORTED |
|
# endif |
|
# ifndef PNG_iTXt_SUPPORTED |
|
# define PNG_iTXt_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_oFFs |
|
# define PNG_WRITE_oFFs_SUPPORTED |
|
# ifndef PNG_oFFs_SUPPORTED |
|
# define PNG_oFFs_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_pCAL |
|
# define PNG_WRITE_pCAL_SUPPORTED |
|
# ifndef PNG_pCAL_SUPPORTED |
|
# define PNG_pCAL_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_sCAL |
|
# define PNG_WRITE_sCAL_SUPPORTED |
|
# ifndef PNG_sCAL_SUPPORTED |
|
# define PNG_sCAL_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_pHYs |
|
# define PNG_WRITE_pHYs_SUPPORTED |
|
# ifndef PNG_pHYs_SUPPORTED |
|
# define PNG_pHYs_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_sBIT |
|
# define PNG_WRITE_sBIT_SUPPORTED |
|
# ifndef PNG_sBIT_SUPPORTED |
|
# define PNG_sBIT_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_sPLT |
|
# define PNG_WRITE_sPLT_SUPPORTED |
|
# ifndef PNG_sPLT_SUPPORTED |
|
# define PNG_sPLT_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_sRGB |
|
# define PNG_WRITE_sRGB_SUPPORTED |
|
# ifndef PNG_sRGB_SUPPORTED |
|
# define PNG_sRGB_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_tEXt |
|
# define PNG_WRITE_tEXt_SUPPORTED |
|
# ifndef PNG_tEXt_SUPPORTED |
|
# define PNG_tEXt_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_tIME |
|
# define PNG_WRITE_tIME_SUPPORTED |
|
# ifndef PNG_tIME_SUPPORTED |
|
# define PNG_tIME_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_tRNS |
|
# define PNG_WRITE_tRNS_SUPPORTED |
|
# ifndef PNG_tRNS_SUPPORTED |
|
# define PNG_tRNS_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_zTXt |
|
# define PNG_WRITE_zTXt_SUPPORTED |
|
# ifndef PNG_zTXt_SUPPORTED |
|
# define PNG_zTXt_SUPPORTED |
|
# endif |
|
#endif |
|
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS |
|
# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED |
|
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED |
|
# define PNG_UNKNOWN_CHUNKS_SUPPORTED |
|
# endif |
|
# ifndef PNG_NO_HANDLE_AS_UNKNOWN |
|
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
|
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
|
# endif |
|
# endif |
|
#endif |
|
#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ |
|
defined(PNG_WRITE_zTXt_SUPPORTED) |
|
# define PNG_WRITE_TEXT_SUPPORTED |
|
# ifndef PNG_TEXT_SUPPORTED |
|
# define PNG_TEXT_SUPPORTED |
|
# endif |
|
#endif |
|
|
|
#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ |
|
|
|
/* Turn this off to disable png_read_png() and |
|
* png_write_png() and leave the row_pointers member |
|
* out of the info structure. |
|
*/ |
|
#ifndef PNG_NO_INFO_IMAGE |
|
# define PNG_INFO_IMAGE_SUPPORTED |
|
#endif |
|
|
|
/* need the time information for reading tIME chunks */ |
|
#if defined(PNG_tIME_SUPPORTED) |
|
# if !defined(_WIN32_WCE) |
|
/* "time.h" functions are not supported on WindowsCE */ |
|
# include <time.h> |
|
# endif |
|
#endif |
|
|
|
/* Some typedefs to get us started. These should be safe on most of the |
|
* common platforms. The typedefs should be at least as large as the |
|
* numbers suggest (a png_uint_32 must be at least 32 bits long), but they |
|
* don't have to be exactly that size. Some compilers dislike passing |
|
* unsigned shorts as function parameters, so you may be better off using |
|
* unsigned int for png_uint_16. Likewise, for 64-bit systems, you may |
|
* want to have unsigned int for png_uint_32 instead of unsigned long. |
|
*/ |
|
|
|
typedef unsigned long png_uint_32; |
|
typedef long png_int_32; |
|
typedef unsigned short png_uint_16; |
|
typedef short png_int_16; |
|
typedef unsigned char png_byte; |
|
|
|
/* This is usually size_t. It is typedef'ed just in case you need it to |
|
change (I'm not sure if you will or not, so I thought I'd be safe) */ |
|
typedef size_t png_size_t; |
|
|
|
/* The following is needed for medium model support. It cannot be in the |
|
* PNG_INTERNAL section. Needs modification for other compilers besides |
|
* MSC. Model independent support declares all arrays and pointers to be |
|
* large using the far keyword. The zlib version used must also support |
|
* model independent data. As of version zlib 1.0.4, the necessary changes |
|
* have been made in zlib. The USE_FAR_KEYWORD define triggers other |
|
* changes that are needed. (Tim Wegner) |
|
*/ |
|
|
|
/* Separate compiler dependencies (problem here is that zlib.h always |
|
defines FAR. (SJT) */ |
|
#ifdef __BORLANDC__ |
|
# if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) |
|
# define LDATA 1 |
|
# else |
|
# define LDATA 0 |
|
# endif |
|
/* GRR: why is Cygwin in here? Cygwin is not Borland C... */ |
|
# if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__) |
|
# define PNG_MAX_MALLOC_64K |
|
# if (LDATA != 1) |
|
# ifndef FAR |
|
# define FAR __far |
|
# endif |
|
# define USE_FAR_KEYWORD |
|
# endif /* LDATA != 1 */ |
|
/* Possibly useful for moving data out of default segment. |
|
* Uncomment it if you want. Could also define FARDATA as |
|
* const if your compiler supports it. (SJT) |
|
# define FARDATA FAR |
|
*/ |
|
# endif /* __WIN32__, __FLAT__, __CYGWIN__ */ |
|
#endif /* __BORLANDC__ */ |
|
|
|
|
|
/* Suggest testing for specific compiler first before testing for |
|
* FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM, |
|
* making reliance oncertain keywords suspect. (SJT) |
|
*/ |
|
|
|
/* MSC Medium model */ |
|
#if defined(FAR) |
|
# if defined(M_I86MM) |
|
# define USE_FAR_KEYWORD |
|
# define FARDATA FAR |
|
# include <dos.h> |
|
# endif |
|
#endif |
|
|
|
/* SJT: default case */ |
|
#ifndef FAR |
|
# define FAR |
|
#endif |
|
|
|
/* At this point FAR is always defined */ |
|
#ifndef FARDATA |
|
# define FARDATA |
|
#endif |
|
|
|
/* Typedef for floating-point numbers that are converted |
|
to fixed-point with a multiple of 100,000, e.g., int_gamma */ |
|
typedef png_int_32 png_fixed_point; |
|
|
|
/* Add typedefs for pointers */ |
|
typedef void FAR * png_voidp; |
|
typedef png_byte FAR * png_bytep; |
|
typedef png_uint_32 FAR * png_uint_32p; |
|
typedef png_int_32 FAR * png_int_32p; |
|
typedef png_uint_16 FAR * png_uint_16p; |
|
typedef png_int_16 FAR * png_int_16p; |
|
typedef PNG_CONST char FAR * png_const_charp; |
|
typedef char FAR * png_charp; |
|
typedef png_fixed_point FAR * png_fixed_point_p; |
|
|
|
#ifndef PNG_NO_STDIO |
|
#if defined(_WIN32_WCE) |
|
typedef HANDLE png_FILE_p; |
|
#else |
|
typedef FILE * png_FILE_p; |
|
#endif |
|
#endif |
|
|
|
#ifdef PNG_FLOATING_POINT_SUPPORTED |
|
typedef double FAR * png_doublep; |
|
#endif |
|
|
|
/* Pointers to pointers; i.e. arrays */ |
|
typedef png_byte FAR * FAR * png_bytepp; |
|
typedef png_uint_32 FAR * FAR * png_uint_32pp; |
|
typedef png_int_32 FAR * FAR * png_int_32pp; |
|
typedef png_uint_16 FAR * FAR * png_uint_16pp; |
|
typedef png_int_16 FAR * FAR * png_int_16pp; |
|
typedef PNG_CONST char FAR * FAR * png_const_charpp; |
|
typedef char FAR * FAR * png_charpp; |
|
typedef png_fixed_point FAR * FAR * png_fixed_point_pp; |
|
#ifdef PNG_FLOATING_POINT_SUPPORTED |
|
typedef double FAR * FAR * png_doublepp; |
|
#endif |
|
|
|
/* Pointers to pointers to pointers; i.e., pointer to array */ |
|
typedef char FAR * FAR * FAR * png_charppp; |
|
|
|
/* 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 |
|
* 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 |
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* automatically defined when you compile using the share |
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* version of the CRT (C Run-Time library) |
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* |
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* The cygwin mods make this behavior a little different: |
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* Define PNG_BUILD_DLL if you are building a dll for use with cygwin |
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* Define PNG_STATIC if you are building a static library for use with cygwin, |
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* -or- if you are building an application that you want to link to the |
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* static library. |
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* PNG_USE_DLL is defined by default (no user action needed) unless one of |
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* the other flags is defined. |
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*/ |
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|
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#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) |
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# define PNG_DLL |
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#endif |
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/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib. |
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* When building a static lib, default to no GLOBAL ARRAYS, but allow |
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* command-line override |
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*/ |
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#if defined(__CYGWIN__) |
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# if !defined(PNG_STATIC) |
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# if defined(PNG_USE_GLOBAL_ARRAYS) |
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# undef PNG_USE_GLOBAL_ARRAYS |
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# endif |
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# if !defined(PNG_USE_LOCAL_ARRAYS) |
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# define PNG_USE_LOCAL_ARRAYS |
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# endif |
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# else |
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# if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS) |
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# if defined(PNG_USE_GLOBAL_ARRAYS) |
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# undef PNG_USE_GLOBAL_ARRAYS |
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# endif |
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# endif |
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# endif |
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# if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) |
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# define PNG_USE_LOCAL_ARRAYS |
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# endif |
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#endif |
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|
|
/* Do not use global arrays (helps with building DLL's) |
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* They are no longer used in libpng itself, since version 1.0.5c, |
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* but might be required for some pre-1.0.5c applications. |
|
*/ |
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#if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) |
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# if defined(PNG_NO_GLOBAL_ARRAYS) || (defined(__GNUC__) && defined(PNG_DLL)) |
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# define PNG_USE_LOCAL_ARRAYS |
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# else |
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# define PNG_USE_GLOBAL_ARRAYS |
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# endif |
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#endif |
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|
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|
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#ifndef PNGAPI |
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|
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#if defined(__MINGW32__) || defined(__CYGWIN__) && !defined(PNG_MODULEDEF) |
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# ifndef PNG_NO_MODULEDEF |
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# define PNG_NO_MODULEDEF |
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# endif |
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#endif |
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|
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#if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF) |
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# define PNG_IMPEXP |
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#endif |
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|
|
#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ |
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(( defined(_Windows) || defined(_WINDOWS) || \ |
|
defined(WIN32) || defined(_WIN32) || defined(__WIN32__) \ |
|
) && !defined(__CYGWIN__)) |
|
|
|
# if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) |
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# define PNGAPI __cdecl |
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# else |
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# define PNGAPI _cdecl |
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# endif |
|
|
|
# if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \ |
|
0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */) |
|
# define PNG_IMPEXP |
|
# endif |
|
|
|
# if !defined(PNG_IMPEXP) |
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|
|
# define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol |
|
# define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol |
|
|
|
/* Borland/Microsoft */ |
|
# if defined(_MSC_VER) || defined(__BORLANDC__) |
|
# if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500) |
|
# define PNG_EXPORT PNG_EXPORT_TYPE1 |
|
# else |
|
# define PNG_EXPORT PNG_EXPORT_TYPE2 |
|
# if defined(PNG_BUILD_DLL) |
|
# define PNG_IMPEXP __export |
|
# else |
|
# define PNG_IMPEXP /*__import*/ /* doesn't exist AFAIK in |
|
VC++*/ |
|
# endif /* Exists in Borland C++ for |
|
C++ classes (== huge) */ |
|
# endif |
|
# endif |
|
|
|
# if !defined(PNG_IMPEXP) |
|
# if defined(PNG_BUILD_DLL) |
|
# define PNG_IMPEXP __declspec(dllexport) |
|
# else |
|
# define PNG_IMPEXP __declspec(dllimport) |
|
# endif |
|
# endif |
|
# endif /* PNG_IMPEXP */ |
|
#else /* !(DLL || non-cygwin WINDOWS) */ |
|
# if defined(__CYGWIN__) && !defined(PNG_DLL) |
|
# if !defined(PNG_IMPEXP) |
|
# define PNG_IMPEXP |
|
# endif |
|
# define PNGAPI __cdecl |
|
# else |
|
# if (defined(__IBMC__) || defined(IBMCPP__)) && defined(__OS2__) |
|
# define PNGAPI _System |
|
# define PNG_IMPEXP |
|
# else |
|
# if 0 /* ... other platforms, with other meanings */ |
|
# else |
|
# define PNGAPI |
|
# define PNG_IMPEXP |
|
# endif |
|
# endif |
|
# endif |
|
#endif |
|
#endif |
|
|
|
#ifndef PNGAPI |
|
# define PNGAPI |
|
#endif |
|
#ifndef PNG_IMPEXP |
|
# define PNG_IMPEXP |
|
#endif |
|
|
|
#ifndef PNG_EXPORT |
|
# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol |
|
#endif |
|
|
|
#ifdef PNG_USE_GLOBAL_ARRAYS |
|
# ifndef PNG_EXPORT_VAR |
|
# define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type |
|
# endif |
|
#endif |
|
|
|
/* User may want to use these so they are not in PNG_INTERNAL. Any library |
|
* functions that are passed far data must be model independent. |
|
*/ |
|
|
|
#ifndef PNG_ABORT |
|
# define PNG_ABORT() abort() |
|
#endif |
|
|
|
#ifdef PNG_SETJMP_SUPPORTED |
|
# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf) |
|
#else |
|
# define png_jmpbuf(png_ptr) \ |
|
(LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED) |
|
#endif |
|
|
|
#if defined(USE_FAR_KEYWORD) /* memory model independent fns */ |
|
/* use this to make far-to-near assignments */ |
|
# define CHECK 1 |
|
# define NOCHECK 0 |
|
# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) |
|
# define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK)) |
|
# define png_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 */ |
|
|
|
/* 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 |
|
#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 */ |
|
|
|
#endif /* PNGCONF_H */ |
|
|
|
|