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|
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/* pngconf.h - machine configurable file for libpng |
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* |
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* libpng version 1.2.39 - August 13, 2009 |
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* Copyright (c) 1998-2009 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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* This code is released under the libpng license. |
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* For conditions of distribution and use, see the disclaimer |
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* and license in png.h |
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*/ |
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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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|
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#ifndef PNGCONF_H |
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#define PNGCONF_H |
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|
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#define PNG_1_2_X |
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|
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/* |
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* PNG_USER_CONFIG has to be defined on the compiler command line. This |
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* includes the resource compiler for Windows DLL configurations. |
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*/ |
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#ifdef PNG_USER_CONFIG |
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# ifndef PNG_USER_PRIVATEBUILD |
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# define PNG_USER_PRIVATEBUILD |
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# endif |
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#include "pngusr.h" |
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#endif |
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|
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/* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */ |
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#ifdef PNG_CONFIGURE_LIBPNG |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#endif |
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|
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/* |
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* Added at libpng-1.2.8 |
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* |
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* If you create a private DLL you need to define in "pngusr.h" the followings: |
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* #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of |
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* the DLL was built> |
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* e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." |
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* #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to |
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* distinguish your DLL from those of the official release. These |
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* correspond to the trailing letters that come after the version |
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* number and must match your private DLL name> |
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* e.g. // private DLL "libpng13gx.dll" |
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* #define PNG_USER_DLLFNAME_POSTFIX "gx" |
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* |
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* The following macros are also at your disposal if you want to complete the |
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* DLL VERSIONINFO structure. |
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* - PNG_USER_VERSIONINFO_COMMENTS |
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* - PNG_USER_VERSIONINFO_COMPANYNAME |
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* - PNG_USER_VERSIONINFO_LEGALTRADEMARKS |
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*/ |
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|
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#ifdef __STDC__ |
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#ifdef SPECIALBUILD |
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# pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\ |
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are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.") |
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#endif |
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|
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#ifdef PRIVATEBUILD |
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# pragma message("PRIVATEBUILD is deprecated.\ |
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Use PNG_USER_PRIVATEBUILD instead.") |
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# define PNG_USER_PRIVATEBUILD PRIVATEBUILD |
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#endif |
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#endif /* __STDC__ */ |
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|
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#ifndef PNG_VERSION_INFO_ONLY |
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|
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/* End of material added to libpng-1.2.8 */ |
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|
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/* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble |
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Restored at libpng-1.2.21 */ |
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#if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \ |
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!defined(PNG_WARN_UNINITIALIZED_ROW) |
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# define PNG_WARN_UNINITIALIZED_ROW 1 |
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#endif |
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/* End of material added at libpng-1.2.19/1.2.21 */ |
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|
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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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|
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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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|
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/* Enable if you want a write-only libpng */ |
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|
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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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|
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/* Enable if you want a read-only libpng */ |
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|
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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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|
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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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#if !defined(PNG_1_0_X) && !defined(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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|
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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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|
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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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|
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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 -- (ignored) building the dll |
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* (no define) -- (ignored) building an application, linking to the dll |
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* PNG_STATIC -- (ignored) building the static lib, or building an |
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* application that links to the static lib. |
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* ALL_STATIC -- (ignored) building various static libs, or building an |
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* application 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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* CYGWIN (2002-01-20): The preceding is now obsolete. With the advent |
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* of auto-import in binutils, we no longer need to worry about |
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* __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, |
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* we don't need to worry about PNG_STATIC or ALL_STATIC when it comes |
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* to __declspec() stuff. However, we DO need to worry about |
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* PNG_BUILD_DLL and PNG_STATIC because those change some defaults |
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* such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed. |
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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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|
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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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|
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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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/* abort() may not be supported on some/all Windows CE platforms */ |
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# define PNG_ABORT() exit(-1) |
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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|
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#endif /* OF */ |
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|
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#endif /* PNGARG */ |
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|
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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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|
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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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|
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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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|
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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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* You can bypass this test if you know that your application uses exactly |
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* the same setjmp.h that was included when libpng was built. Only define |
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* PNG_SKIP_SETJMP_CHECK while building your application, prior to the |
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* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK |
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* while building a separate libpng library for general use. |
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*/ |
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|
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# ifndef PNG_SKIP_SETJMP_CHECK |
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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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/* If you encounter a compiler error here, see the explanation |
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* near the end of INSTALL. |
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*/ |
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__pngconf.h__ in libpng 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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# endif /* PNG_SKIP_SETJMP_CHECK */ |
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|
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/* include setjmp.h for error handling */ |
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# include <setjmp.h> |
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|
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# ifdef __linux__ |
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# ifdef PNG_SAVE_BSD_SOURCE |
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# ifndef _BSD_SOURCE |
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# define _BSD_SOURCE |
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# endif |
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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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|
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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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|
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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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|
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#include <stdlib.h> |
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|
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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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|
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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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*/ |
| 380 |
|
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#if defined(PNG_FLOATING_POINT_SUPPORTED) |
| 382 |
# if defined(MACOS) |
| 383 |
/* We need to check that <math.h> hasn't already been included earlier |
| 384 |
* 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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*/ |
| 387 |
# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) |
| 388 |
# include <fp.h> |
| 389 |
# endif |
| 390 |
# else |
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# include <math.h> |
| 392 |
# endif |
| 393 |
# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) |
| 394 |
/* Amiga SAS/C: We must include builtin FPU functions when compiling using |
| 395 |
* MATH=68881 |
| 396 |
*/ |
| 397 |
# include <m68881.h> |
| 398 |
# endif |
| 399 |
#endif |
| 400 |
|
| 401 |
/* Codewarrior on NT has linking problems without this. */ |
| 402 |
#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__) |
| 403 |
# define PNG_ALWAYS_EXTERN |
| 404 |
#endif |
| 405 |
|
| 406 |
/* This provides the non-ANSI (far) memory allocation routines. */ |
| 407 |
#if defined(__TURBOC__) && defined(__MSDOS__) |
| 408 |
# include <mem.h> |
| 409 |
# include <alloc.h> |
| 410 |
#endif |
| 411 |
|
| 412 |
/* I have no idea why is this necessary... */ |
| 413 |
#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ |
| 414 |
defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) |
| 415 |
# include <malloc.h> |
| 416 |
#endif |
| 417 |
|
| 418 |
/* This controls how fine the dithering gets. As this allocates |
| 419 |
* a largish chunk of memory (32K), those who are not as concerned |
| 420 |
* with dithering quality can decrease some or all of these. |
| 421 |
*/ |
| 422 |
#ifndef PNG_DITHER_RED_BITS |
| 423 |
# define PNG_DITHER_RED_BITS 5 |
| 424 |
#endif |
| 425 |
#ifndef PNG_DITHER_GREEN_BITS |
| 426 |
# define PNG_DITHER_GREEN_BITS 5 |
| 427 |
#endif |
| 428 |
#ifndef PNG_DITHER_BLUE_BITS |
| 429 |
# define PNG_DITHER_BLUE_BITS 5 |
| 430 |
#endif |
| 431 |
|
| 432 |
/* This controls how fine the gamma correction becomes when you |
| 433 |
* are only interested in 8 bits anyway. Increasing this value |
| 434 |
* results in more memory being used, and more pow() functions |
| 435 |
* being called to fill in the gamma tables. Don't set this value |
| 436 |
* less then 8, and even that may not work (I haven't tested it). |
| 437 |
*/ |
| 438 |
|
| 439 |
#ifndef PNG_MAX_GAMMA_8 |
| 440 |
# define PNG_MAX_GAMMA_8 11 |
| 441 |
#endif |
| 442 |
|
| 443 |
/* This controls how much a difference in gamma we can tolerate before |
| 444 |
* we actually start doing gamma conversion. |
| 445 |
*/ |
| 446 |
#ifndef PNG_GAMMA_THRESHOLD |
| 447 |
# define PNG_GAMMA_THRESHOLD 0.05 |
| 448 |
#endif |
| 449 |
|
| 450 |
#endif /* PNG_INTERNAL */ |
| 451 |
|
| 452 |
/* The following uses const char * instead of char * for error |
| 453 |
* and warning message functions, so some compilers won't complain. |
| 454 |
* If you do not want to use const, define PNG_NO_CONST here. |
| 455 |
*/ |
| 456 |
|
| 457 |
#ifndef PNG_NO_CONST |
| 458 |
# define PNG_CONST const |
| 459 |
#else |
| 460 |
# define PNG_CONST |
| 461 |
#endif |
| 462 |
|
| 463 |
/* The following defines give you the ability to remove code from the |
| 464 |
* library that you will not be using. I wish I could figure out how to |
| 465 |
* automate this, but I can't do that without making it seriously hard |
| 466 |
* on the users. So if you are not using an ability, change the #define |
| 467 |
* to and #undef, and that part of the library will not be compiled. If |
| 468 |
* your linker can't find a function, you may want to make sure the |
| 469 |
* ability is defined here. Some of these depend upon some others being |
| 470 |
* defined. I haven't figured out all the interactions here, so you may |
| 471 |
* have to experiment awhile to get everything to compile. If you are |
| 472 |
* creating or using a shared library, you probably shouldn't touch this, |
| 473 |
* as it will affect the size of the structures, and this will cause bad |
| 474 |
* things to happen if the library and/or application ever change. |
| 475 |
*/ |
| 476 |
|
| 477 |
/* Any features you will not be using can be undef'ed here */ |
| 478 |
|
| 479 |
/* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user |
| 480 |
* to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS |
| 481 |
* on the compile line, then pick and choose which ones to define without |
| 482 |
* having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED |
| 483 |
* if you only want to have a png-compliant reader/writer but don't need |
| 484 |
* any of the extra transformations. This saves about 80 kbytes in a |
| 485 |
* typical installation of the library. (PNG_NO_* form added in version |
| 486 |
* 1.0.1c, for consistency) |
| 487 |
*/ |
| 488 |
|
| 489 |
/* The size of the png_text structure changed in libpng-1.0.6 when |
| 490 |
* iTXt support was added. iTXt support was turned off by default through |
| 491 |
* libpng-1.2.x, to support old apps that malloc the png_text structure |
| 492 |
* instead of calling png_set_text() and letting libpng malloc it. It |
| 493 |
* will be turned on by default in libpng-1.4.0. |
| 494 |
*/ |
| 495 |
|
| 496 |
#if defined(PNG_1_0_X) || defined (PNG_1_2_X) |
| 497 |
# ifndef PNG_NO_iTXt_SUPPORTED |
| 498 |
# define PNG_NO_iTXt_SUPPORTED |
| 499 |
# endif |
| 500 |
# ifndef PNG_NO_READ_iTXt |
| 501 |
# define PNG_NO_READ_iTXt |
| 502 |
# endif |
| 503 |
# ifndef PNG_NO_WRITE_iTXt |
| 504 |
# define PNG_NO_WRITE_iTXt |
| 505 |
# endif |
| 506 |
#endif |
| 507 |
|
| 508 |
#if !defined(PNG_NO_iTXt_SUPPORTED) |
| 509 |
# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt) |
| 510 |
# define PNG_READ_iTXt |
| 511 |
# endif |
| 512 |
# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt) |
| 513 |
# define PNG_WRITE_iTXt |
| 514 |
# endif |
| 515 |
#endif |
| 516 |
|
| 517 |
/* The following support, added after version 1.0.0, can be turned off here en |
| 518 |
* masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility |
| 519 |
* with old applications that require the length of png_struct and png_info |
| 520 |
* to remain unchanged. |
| 521 |
*/ |
| 522 |
|
| 523 |
#ifdef PNG_LEGACY_SUPPORTED |
| 524 |
# define PNG_NO_FREE_ME |
| 525 |
# define PNG_NO_READ_UNKNOWN_CHUNKS |
| 526 |
# define PNG_NO_WRITE_UNKNOWN_CHUNKS |
| 527 |
# define PNG_NO_HANDLE_AS_UNKNOWN |
| 528 |
# define PNG_NO_READ_USER_CHUNKS |
| 529 |
# define PNG_NO_READ_iCCP |
| 530 |
# define PNG_NO_WRITE_iCCP |
| 531 |
# define PNG_NO_READ_iTXt |
| 532 |
# define PNG_NO_WRITE_iTXt |
| 533 |
# define PNG_NO_READ_sCAL |
| 534 |
# define PNG_NO_WRITE_sCAL |
| 535 |
# define PNG_NO_READ_sPLT |
| 536 |
# define PNG_NO_WRITE_sPLT |
| 537 |
# define PNG_NO_INFO_IMAGE |
| 538 |
# define PNG_NO_READ_RGB_TO_GRAY |
| 539 |
# define PNG_NO_READ_USER_TRANSFORM |
| 540 |
# define PNG_NO_WRITE_USER_TRANSFORM |
| 541 |
# define PNG_NO_USER_MEM |
| 542 |
# define PNG_NO_READ_EMPTY_PLTE |
| 543 |
# define PNG_NO_MNG_FEATURES |
| 544 |
# define PNG_NO_FIXED_POINT_SUPPORTED |
| 545 |
#endif |
| 546 |
|
| 547 |
/* Ignore attempt to turn off both floating and fixed point support */ |
| 548 |
#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ |
| 549 |
!defined(PNG_NO_FIXED_POINT_SUPPORTED) |
| 550 |
# define PNG_FIXED_POINT_SUPPORTED |
| 551 |
#endif |
| 552 |
|
| 553 |
#ifndef PNG_NO_FREE_ME |
| 554 |
# define PNG_FREE_ME_SUPPORTED |
| 555 |
#endif |
| 556 |
|
| 557 |
#ifdef PNG_READ_SUPPORTED |
| 558 |
|
| 559 |
#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ |
| 560 |
!defined(PNG_NO_READ_TRANSFORMS) |
| 561 |
# define PNG_READ_TRANSFORMS_SUPPORTED |
| 562 |
#endif |
| 563 |
|
| 564 |
#ifdef PNG_READ_TRANSFORMS_SUPPORTED |
| 565 |
# ifndef PNG_NO_READ_EXPAND |
| 566 |
# define PNG_READ_EXPAND_SUPPORTED |
| 567 |
# endif |
| 568 |
# ifndef PNG_NO_READ_SHIFT |
| 569 |
# define PNG_READ_SHIFT_SUPPORTED |
| 570 |
# endif |
| 571 |
# ifndef PNG_NO_READ_PACK |
| 572 |
# define PNG_READ_PACK_SUPPORTED |
| 573 |
# endif |
| 574 |
# ifndef PNG_NO_READ_BGR |
| 575 |
# define PNG_READ_BGR_SUPPORTED |
| 576 |
# endif |
| 577 |
# ifndef PNG_NO_READ_SWAP |
| 578 |
# define PNG_READ_SWAP_SUPPORTED |
| 579 |
# endif |
| 580 |
# ifndef PNG_NO_READ_PACKSWAP |
| 581 |
# define PNG_READ_PACKSWAP_SUPPORTED |
| 582 |
# endif |
| 583 |
# ifndef PNG_NO_READ_INVERT |
| 584 |
# define PNG_READ_INVERT_SUPPORTED |
| 585 |
# endif |
| 586 |
# ifndef PNG_NO_READ_DITHER |
| 587 |
# define PNG_READ_DITHER_SUPPORTED |
| 588 |
# endif |
| 589 |
# ifndef PNG_NO_READ_BACKGROUND |
| 590 |
# define PNG_READ_BACKGROUND_SUPPORTED |
| 591 |
# endif |
| 592 |
# ifndef PNG_NO_READ_16_TO_8 |
| 593 |
# define PNG_READ_16_TO_8_SUPPORTED |
| 594 |
# endif |
| 595 |
# ifndef PNG_NO_READ_FILLER |
| 596 |
# define PNG_READ_FILLER_SUPPORTED |
| 597 |
# endif |
| 598 |
# ifndef PNG_NO_READ_GAMMA |
| 599 |
# define PNG_READ_GAMMA_SUPPORTED |
| 600 |
# endif |
| 601 |
# ifndef PNG_NO_READ_GRAY_TO_RGB |
| 602 |
# define PNG_READ_GRAY_TO_RGB_SUPPORTED |
| 603 |
# endif |
| 604 |
# ifndef PNG_NO_READ_SWAP_ALPHA |
| 605 |
# define PNG_READ_SWAP_ALPHA_SUPPORTED |
| 606 |
# endif |
| 607 |
# ifndef PNG_NO_READ_INVERT_ALPHA |
| 608 |
# define PNG_READ_INVERT_ALPHA_SUPPORTED |
| 609 |
# endif |
| 610 |
# ifndef PNG_NO_READ_STRIP_ALPHA |
| 611 |
# define PNG_READ_STRIP_ALPHA_SUPPORTED |
| 612 |
# endif |
| 613 |
# ifndef PNG_NO_READ_USER_TRANSFORM |
| 614 |
# define PNG_READ_USER_TRANSFORM_SUPPORTED |
| 615 |
# endif |
| 616 |
# ifndef PNG_NO_READ_RGB_TO_GRAY |
| 617 |
# define PNG_READ_RGB_TO_GRAY_SUPPORTED |
| 618 |
# endif |
| 619 |
#endif /* PNG_READ_TRANSFORMS_SUPPORTED */ |
| 620 |
|
| 621 |
#if !defined(PNG_NO_PROGRESSIVE_READ) && \ |
| 622 |
!defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */ |
| 623 |
# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ |
| 624 |
#endif /* about interlacing capability! You'll */ |
| 625 |
/* still have interlacing unless you change the following line: */ |
| 626 |
|
| 627 |
#define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */ |
| 628 |
|
| 629 |
#ifndef PNG_NO_READ_COMPOSITE_NODIV |
| 630 |
# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ |
| 631 |
# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ |
| 632 |
# endif |
| 633 |
#endif |
| 634 |
|
| 635 |
#if defined(PNG_1_0_X) || defined (PNG_1_2_X) |
| 636 |
/* Deprecated, will be removed from version 2.0.0. |
| 637 |
Use PNG_MNG_FEATURES_SUPPORTED instead. */ |
| 638 |
#ifndef PNG_NO_READ_EMPTY_PLTE |
| 639 |
# define PNG_READ_EMPTY_PLTE_SUPPORTED |
| 640 |
#endif |
| 641 |
#endif |
| 642 |
|
| 643 |
#endif /* PNG_READ_SUPPORTED */ |
| 644 |
|
| 645 |
#ifdef PNG_WRITE_SUPPORTED |
| 646 |
|
| 647 |
# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ |
| 648 |
!defined(PNG_NO_WRITE_TRANSFORMS) |
| 649 |
# define PNG_WRITE_TRANSFORMS_SUPPORTED |
| 650 |
#endif |
| 651 |
|
| 652 |
#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED |
| 653 |
# ifndef PNG_NO_WRITE_SHIFT |
| 654 |
# define PNG_WRITE_SHIFT_SUPPORTED |
| 655 |
# endif |
| 656 |
# ifndef PNG_NO_WRITE_PACK |
| 657 |
# define PNG_WRITE_PACK_SUPPORTED |
| 658 |
# endif |
| 659 |
# ifndef PNG_NO_WRITE_BGR |
| 660 |
# define PNG_WRITE_BGR_SUPPORTED |
| 661 |
# endif |
| 662 |
# ifndef PNG_NO_WRITE_SWAP |
| 663 |
# define PNG_WRITE_SWAP_SUPPORTED |
| 664 |
# endif |
| 665 |
# ifndef PNG_NO_WRITE_PACKSWAP |
| 666 |
# define PNG_WRITE_PACKSWAP_SUPPORTED |
| 667 |
# endif |
| 668 |
# ifndef PNG_NO_WRITE_INVERT |
| 669 |
# define PNG_WRITE_INVERT_SUPPORTED |
| 670 |
# endif |
| 671 |
# ifndef PNG_NO_WRITE_FILLER |
| 672 |
# define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */ |
| 673 |
# endif |
| 674 |
# ifndef PNG_NO_WRITE_SWAP_ALPHA |
| 675 |
# define PNG_WRITE_SWAP_ALPHA_SUPPORTED |
| 676 |
# endif |
| 677 |
# ifndef PNG_NO_WRITE_INVERT_ALPHA |
| 678 |
# define PNG_WRITE_INVERT_ALPHA_SUPPORTED |
| 679 |
# endif |
| 680 |
# ifndef PNG_NO_WRITE_USER_TRANSFORM |
| 681 |
# define PNG_WRITE_USER_TRANSFORM_SUPPORTED |
| 682 |
# endif |
| 683 |
#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ |
| 684 |
|
| 685 |
#if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \ |
| 686 |
!defined(PNG_WRITE_INTERLACING_SUPPORTED) |
| 687 |
#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant |
| 688 |
encoders, but can cause trouble |
| 689 |
if left undefined */ |
| 690 |
#endif |
| 691 |
|
| 692 |
#if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ |
| 693 |
!defined(PNG_WRITE_WEIGHTED_FILTER) && \ |
| 694 |
defined(PNG_FLOATING_POINT_SUPPORTED) |
| 695 |
# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED |
| 696 |
#endif |
| 697 |
|
| 698 |
#ifndef PNG_NO_WRITE_FLUSH |
| 699 |
# define PNG_WRITE_FLUSH_SUPPORTED |
| 700 |
#endif |
| 701 |
|
| 702 |
#if defined(PNG_1_0_X) || defined (PNG_1_2_X) |
| 703 |
/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */ |
| 704 |
#ifndef PNG_NO_WRITE_EMPTY_PLTE |
| 705 |
# define PNG_WRITE_EMPTY_PLTE_SUPPORTED |
| 706 |
#endif |
| 707 |
#endif |
| 708 |
|
| 709 |
#endif /* PNG_WRITE_SUPPORTED */ |
| 710 |
|
| 711 |
#ifndef PNG_1_0_X |
| 712 |
# ifndef PNG_NO_ERROR_NUMBERS |
| 713 |
# define PNG_ERROR_NUMBERS_SUPPORTED |
| 714 |
# endif |
| 715 |
#endif /* PNG_1_0_X */ |
| 716 |
|
| 717 |
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ |
| 718 |
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) |
| 719 |
# ifndef PNG_NO_USER_TRANSFORM_PTR |
| 720 |
# define PNG_USER_TRANSFORM_PTR_SUPPORTED |
| 721 |
# endif |
| 722 |
#endif |
| 723 |
|
| 724 |
#ifndef PNG_NO_STDIO |
| 725 |
# define PNG_TIME_RFC1123_SUPPORTED |
| 726 |
#endif |
| 727 |
|
| 728 |
/* This adds extra functions in pngget.c for accessing data from the |
| 729 |
* info pointer (added in version 0.99) |
| 730 |
* png_get_image_width() |
| 731 |
* png_get_image_height() |
| 732 |
* png_get_bit_depth() |
| 733 |
* png_get_color_type() |
| 734 |
* png_get_compression_type() |
| 735 |
* png_get_filter_type() |
| 736 |
* png_get_interlace_type() |
| 737 |
* png_get_pixel_aspect_ratio() |
| 738 |
* png_get_pixels_per_meter() |
| 739 |
* png_get_x_offset_pixels() |
| 740 |
* png_get_y_offset_pixels() |
| 741 |
* png_get_x_offset_microns() |
| 742 |
* png_get_y_offset_microns() |
| 743 |
*/ |
| 744 |
#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED) |
| 745 |
# define PNG_EASY_ACCESS_SUPPORTED |
| 746 |
#endif |
| 747 |
|
| 748 |
/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 |
| 749 |
* and removed from version 1.2.20. The following will be removed |
| 750 |
* from libpng-1.4.0 |
| 751 |
*/ |
| 752 |
|
| 753 |
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE) |
| 754 |
# ifndef PNG_OPTIMIZED_CODE_SUPPORTED |
| 755 |
# define PNG_OPTIMIZED_CODE_SUPPORTED |
| 756 |
# endif |
| 757 |
#endif |
| 758 |
|
| 759 |
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE) |
| 760 |
# ifndef PNG_ASSEMBLER_CODE_SUPPORTED |
| 761 |
# define PNG_ASSEMBLER_CODE_SUPPORTED |
| 762 |
# endif |
| 763 |
|
| 764 |
# if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4) |
| 765 |
/* work around 64-bit gcc compiler bugs in gcc-3.x */ |
| 766 |
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) |
| 767 |
# define PNG_NO_MMX_CODE |
| 768 |
# endif |
| 769 |
# endif |
| 770 |
|
| 771 |
# if defined(__APPLE__) |
| 772 |
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) |
| 773 |
# define PNG_NO_MMX_CODE |
| 774 |
# endif |
| 775 |
# endif |
| 776 |
|
| 777 |
# if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh)) |
| 778 |
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) |
| 779 |
# define PNG_NO_MMX_CODE |
| 780 |
# endif |
| 781 |
# endif |
| 782 |
|
| 783 |
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) |
| 784 |
# define PNG_MMX_CODE_SUPPORTED |
| 785 |
# endif |
| 786 |
|
| 787 |
#endif |
| 788 |
/* end of obsolete code to be removed from libpng-1.4.0 */ |
| 789 |
|
| 790 |
#if !defined(PNG_1_0_X) |
| 791 |
#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) |
| 792 |
# define PNG_USER_MEM_SUPPORTED |
| 793 |
#endif |
| 794 |
#endif /* PNG_1_0_X */ |
| 795 |
|
| 796 |
/* Added at libpng-1.2.6 */ |
| 797 |
#if !defined(PNG_1_0_X) |
| 798 |
#ifndef PNG_SET_USER_LIMITS_SUPPORTED |
| 799 |
#if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED) |
| 800 |
# define PNG_SET_USER_LIMITS_SUPPORTED |
| 801 |
#endif |
| 802 |
#endif |
| 803 |
#endif /* PNG_1_0_X */ |
| 804 |
|
| 805 |
/* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter |
| 806 |
* how large, set these limits to 0x7fffffffL |
| 807 |
*/ |
| 808 |
#ifndef PNG_USER_WIDTH_MAX |
| 809 |
# define PNG_USER_WIDTH_MAX 1000000L |
| 810 |
#endif |
| 811 |
#ifndef PNG_USER_HEIGHT_MAX |
| 812 |
# define PNG_USER_HEIGHT_MAX 1000000L |
| 813 |
#endif |
| 814 |
|
| 815 |
/* Added at libpng-1.2.34 and 1.4.0 */ |
| 816 |
#ifndef PNG_STRING_NEWLINE |
| 817 |
#define PNG_STRING_NEWLINE "\n" |
| 818 |
#endif |
| 819 |
|
| 820 |
/* These are currently experimental features, define them if you want */ |
| 821 |
|
| 822 |
/* very little testing */ |
| 823 |
/* |
| 824 |
#ifdef PNG_READ_SUPPORTED |
| 825 |
# ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED |
| 826 |
# define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED |
| 827 |
# endif |
| 828 |
#endif |
| 829 |
*/ |
| 830 |
|
| 831 |
/* This is only for PowerPC big-endian and 680x0 systems */ |
| 832 |
/* some testing */ |
| 833 |
/* |
| 834 |
#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED |
| 835 |
# define PNG_READ_BIG_ENDIAN_SUPPORTED |
| 836 |
#endif |
| 837 |
*/ |
| 838 |
|
| 839 |
/* Buggy compilers (e.g., gcc 2.7.2.2) need this */ |
| 840 |
/* |
| 841 |
#define PNG_NO_POINTER_INDEXING |
| 842 |
*/ |
| 843 |
|
| 844 |
/* These functions are turned off by default, as they will be phased out. */ |
| 845 |
/* |
| 846 |
#define PNG_USELESS_TESTS_SUPPORTED |
| 847 |
#define PNG_CORRECT_PALETTE_SUPPORTED |
| 848 |
*/ |
| 849 |
|
| 850 |
/* Any chunks you are not interested in, you can undef here. The |
| 851 |
* ones that allocate memory may be expecially important (hIST, |
| 852 |
* tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info |
| 853 |
* a bit smaller. |
| 854 |
*/ |
| 855 |
|
| 856 |
#if defined(PNG_READ_SUPPORTED) && \ |
| 857 |
!defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ |
| 858 |
!defined(PNG_NO_READ_ANCILLARY_CHUNKS) |
| 859 |
# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED |
| 860 |
#endif |
| 861 |
|
| 862 |
#if defined(PNG_WRITE_SUPPORTED) && \ |
| 863 |
!defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ |
| 864 |
!defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) |
| 865 |
# define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED |
| 866 |
#endif |
| 867 |
|
| 868 |
#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED |
| 869 |
|
| 870 |
#ifdef PNG_NO_READ_TEXT |
| 871 |
# define PNG_NO_READ_iTXt |
| 872 |
# define PNG_NO_READ_tEXt |
| 873 |
# define PNG_NO_READ_zTXt |
| 874 |
#endif |
| 875 |
#ifndef PNG_NO_READ_bKGD |
| 876 |
# define PNG_READ_bKGD_SUPPORTED |
| 877 |
# define PNG_bKGD_SUPPORTED |
| 878 |
#endif |
| 879 |
#ifndef PNG_NO_READ_cHRM |
| 880 |
# define PNG_READ_cHRM_SUPPORTED |
| 881 |
# define PNG_cHRM_SUPPORTED |
| 882 |
#endif |
| 883 |
#ifndef PNG_NO_READ_gAMA |
| 884 |
# define PNG_READ_gAMA_SUPPORTED |
| 885 |
# define PNG_gAMA_SUPPORTED |
| 886 |
#endif |
| 887 |
#ifndef PNG_NO_READ_hIST |
| 888 |
# define PNG_READ_hIST_SUPPORTED |
| 889 |
# define PNG_hIST_SUPPORTED |
| 890 |
#endif |
| 891 |
#ifndef PNG_NO_READ_iCCP |
| 892 |
# define PNG_READ_iCCP_SUPPORTED |
| 893 |
# define PNG_iCCP_SUPPORTED |
| 894 |
#endif |
| 895 |
#ifndef PNG_NO_READ_iTXt |
| 896 |
# ifndef PNG_READ_iTXt_SUPPORTED |
| 897 |
# define PNG_READ_iTXt_SUPPORTED |
| 898 |
# endif |
| 899 |
# ifndef PNG_iTXt_SUPPORTED |
| 900 |
# define PNG_iTXt_SUPPORTED |
| 901 |
# endif |
| 902 |
#endif |
| 903 |
#ifndef PNG_NO_READ_oFFs |
| 904 |
# define PNG_READ_oFFs_SUPPORTED |
| 905 |
# define PNG_oFFs_SUPPORTED |
| 906 |
#endif |
| 907 |
#ifndef PNG_NO_READ_pCAL |
| 908 |
# define PNG_READ_pCAL_SUPPORTED |
| 909 |
# define PNG_pCAL_SUPPORTED |
| 910 |
#endif |
| 911 |
#ifndef PNG_NO_READ_sCAL |
| 912 |
# define PNG_READ_sCAL_SUPPORTED |
| 913 |
# define PNG_sCAL_SUPPORTED |
| 914 |
#endif |
| 915 |
#ifndef PNG_NO_READ_pHYs |
| 916 |
# define PNG_READ_pHYs_SUPPORTED |
| 917 |
# define PNG_pHYs_SUPPORTED |
| 918 |
#endif |
| 919 |
#ifndef PNG_NO_READ_sBIT |
| 920 |
# define PNG_READ_sBIT_SUPPORTED |
| 921 |
# define PNG_sBIT_SUPPORTED |
| 922 |
#endif |
| 923 |
#ifndef PNG_NO_READ_sPLT |
| 924 |
# define PNG_READ_sPLT_SUPPORTED |
| 925 |
# define PNG_sPLT_SUPPORTED |
| 926 |
#endif |
| 927 |
#ifndef PNG_NO_READ_sRGB |
| 928 |
# define PNG_READ_sRGB_SUPPORTED |
| 929 |
# define PNG_sRGB_SUPPORTED |
| 930 |
#endif |
| 931 |
#ifndef PNG_NO_READ_tEXt |
| 932 |
# define PNG_READ_tEXt_SUPPORTED |
| 933 |
# define PNG_tEXt_SUPPORTED |
| 934 |
#endif |
| 935 |
#ifndef PNG_NO_READ_tIME |
| 936 |
# define PNG_READ_tIME_SUPPORTED |
| 937 |
# define PNG_tIME_SUPPORTED |
| 938 |
#endif |
| 939 |
#ifndef PNG_NO_READ_tRNS |
| 940 |
# define PNG_READ_tRNS_SUPPORTED |
| 941 |
# define PNG_tRNS_SUPPORTED |
| 942 |
#endif |
| 943 |
#ifndef PNG_NO_READ_zTXt |
| 944 |
# define PNG_READ_zTXt_SUPPORTED |
| 945 |
# define PNG_zTXt_SUPPORTED |
| 946 |
#endif |
| 947 |
#ifndef PNG_NO_READ_OPT_PLTE |
| 948 |
# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ |
| 949 |
#endif /* optional PLTE chunk in RGB and RGBA images */ |
| 950 |
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ |
| 951 |
defined(PNG_READ_zTXt_SUPPORTED) |
| 952 |
# define PNG_READ_TEXT_SUPPORTED |
| 953 |
# define PNG_TEXT_SUPPORTED |
| 954 |
#endif |
| 955 |
|
| 956 |
#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ |
| 957 |
|
| 958 |
#ifndef PNG_NO_READ_UNKNOWN_CHUNKS |
| 959 |
# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED |
| 960 |
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED |
| 961 |
# define PNG_UNKNOWN_CHUNKS_SUPPORTED |
| 962 |
# endif |
| 963 |
#endif |
| 964 |
#if !defined(PNG_NO_READ_USER_CHUNKS) && \ |
| 965 |
defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) |
| 966 |
# define PNG_READ_USER_CHUNKS_SUPPORTED |
| 967 |
# define PNG_USER_CHUNKS_SUPPORTED |
| 968 |
# ifdef PNG_NO_READ_UNKNOWN_CHUNKS |
| 969 |
# undef PNG_NO_READ_UNKNOWN_CHUNKS |
| 970 |
# endif |
| 971 |
# ifdef PNG_NO_HANDLE_AS_UNKNOWN |
| 972 |
# undef PNG_NO_HANDLE_AS_UNKNOWN |
| 973 |
# endif |
| 974 |
#endif |
| 975 |
|
| 976 |
#ifndef PNG_NO_HANDLE_AS_UNKNOWN |
| 977 |
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| 978 |
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| 979 |
# endif |
| 980 |
#endif |
| 981 |
|
| 982 |
#ifdef PNG_WRITE_SUPPORTED |
| 983 |
#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED |
| 984 |
|
| 985 |
#ifdef PNG_NO_WRITE_TEXT |
| 986 |
# define PNG_NO_WRITE_iTXt |
| 987 |
# define PNG_NO_WRITE_tEXt |
| 988 |
# define PNG_NO_WRITE_zTXt |
| 989 |
#endif |
| 990 |
#ifndef PNG_NO_WRITE_bKGD |
| 991 |
# define PNG_WRITE_bKGD_SUPPORTED |
| 992 |
# ifndef PNG_bKGD_SUPPORTED |
| 993 |
# define PNG_bKGD_SUPPORTED |
| 994 |
# endif |
| 995 |
#endif |
| 996 |
#ifndef PNG_NO_WRITE_cHRM |
| 997 |
# define PNG_WRITE_cHRM_SUPPORTED |
| 998 |
# ifndef PNG_cHRM_SUPPORTED |
| 999 |
# define PNG_cHRM_SUPPORTED |
| 1000 |
# endif |
| 1001 |
#endif |
| 1002 |
#ifndef PNG_NO_WRITE_gAMA |
| 1003 |
# define PNG_WRITE_gAMA_SUPPORTED |
| 1004 |
# ifndef PNG_gAMA_SUPPORTED |
| 1005 |
# define PNG_gAMA_SUPPORTED |
| 1006 |
# endif |
| 1007 |
#endif |
| 1008 |
#ifndef PNG_NO_WRITE_hIST |
| 1009 |
# define PNG_WRITE_hIST_SUPPORTED |
| 1010 |
# ifndef PNG_hIST_SUPPORTED |
| 1011 |
# define PNG_hIST_SUPPORTED |
| 1012 |
# endif |
| 1013 |
#endif |
| 1014 |
#ifndef PNG_NO_WRITE_iCCP |
| 1015 |
# define PNG_WRITE_iCCP_SUPPORTED |
| 1016 |
# ifndef PNG_iCCP_SUPPORTED |
| 1017 |
# define PNG_iCCP_SUPPORTED |
| 1018 |
# endif |
| 1019 |
#endif |
| 1020 |
#ifndef PNG_NO_WRITE_iTXt |
| 1021 |
# ifndef PNG_WRITE_iTXt_SUPPORTED |
| 1022 |
# define PNG_WRITE_iTXt_SUPPORTED |
| 1023 |
# endif |
| 1024 |
# ifndef PNG_iTXt_SUPPORTED |
| 1025 |
# define PNG_iTXt_SUPPORTED |
| 1026 |
# endif |
| 1027 |
#endif |
| 1028 |
#ifndef PNG_NO_WRITE_oFFs |
| 1029 |
# define PNG_WRITE_oFFs_SUPPORTED |
| 1030 |
# ifndef PNG_oFFs_SUPPORTED |
| 1031 |
# define PNG_oFFs_SUPPORTED |
| 1032 |
# endif |
| 1033 |
#endif |
| 1034 |
#ifndef PNG_NO_WRITE_pCAL |
| 1035 |
# define PNG_WRITE_pCAL_SUPPORTED |
| 1036 |
# ifndef PNG_pCAL_SUPPORTED |
| 1037 |
# define PNG_pCAL_SUPPORTED |
| 1038 |
# endif |
| 1039 |
#endif |
| 1040 |
#ifndef PNG_NO_WRITE_sCAL |
| 1041 |
# define PNG_WRITE_sCAL_SUPPORTED |
| 1042 |
# ifndef PNG_sCAL_SUPPORTED |
| 1043 |
# define PNG_sCAL_SUPPORTED |
| 1044 |
# endif |
| 1045 |
#endif |
| 1046 |
#ifndef PNG_NO_WRITE_pHYs |
| 1047 |
# define PNG_WRITE_pHYs_SUPPORTED |
| 1048 |
# ifndef PNG_pHYs_SUPPORTED |
| 1049 |
# define PNG_pHYs_SUPPORTED |
| 1050 |
# endif |
| 1051 |
#endif |
| 1052 |
#ifndef PNG_NO_WRITE_sBIT |
| 1053 |
# define PNG_WRITE_sBIT_SUPPORTED |
| 1054 |
# ifndef PNG_sBIT_SUPPORTED |
| 1055 |
# define PNG_sBIT_SUPPORTED |
| 1056 |
# endif |
| 1057 |
#endif |
| 1058 |
#ifndef PNG_NO_WRITE_sPLT |
| 1059 |
# define PNG_WRITE_sPLT_SUPPORTED |
| 1060 |
# ifndef PNG_sPLT_SUPPORTED |
| 1061 |
# define PNG_sPLT_SUPPORTED |
| 1062 |
# endif |
| 1063 |
#endif |
| 1064 |
#ifndef PNG_NO_WRITE_sRGB |
| 1065 |
# define PNG_WRITE_sRGB_SUPPORTED |
| 1066 |
# ifndef PNG_sRGB_SUPPORTED |
| 1067 |
# define PNG_sRGB_SUPPORTED |
| 1068 |
# endif |
| 1069 |
#endif |
| 1070 |
#ifndef PNG_NO_WRITE_tEXt |
| 1071 |
# define PNG_WRITE_tEXt_SUPPORTED |
| 1072 |
# ifndef PNG_tEXt_SUPPORTED |
| 1073 |
# define PNG_tEXt_SUPPORTED |
| 1074 |
# endif |
| 1075 |
#endif |
| 1076 |
#ifndef PNG_NO_WRITE_tIME |
| 1077 |
# define PNG_WRITE_tIME_SUPPORTED |
| 1078 |
# ifndef PNG_tIME_SUPPORTED |
| 1079 |
# define PNG_tIME_SUPPORTED |
| 1080 |
# endif |
| 1081 |
#endif |
| 1082 |
#ifndef PNG_NO_WRITE_tRNS |
| 1083 |
# define PNG_WRITE_tRNS_SUPPORTED |
| 1084 |
# ifndef PNG_tRNS_SUPPORTED |
| 1085 |
# define PNG_tRNS_SUPPORTED |
| 1086 |
# endif |
| 1087 |
#endif |
| 1088 |
#ifndef PNG_NO_WRITE_zTXt |
| 1089 |
# define PNG_WRITE_zTXt_SUPPORTED |
| 1090 |
# ifndef PNG_zTXt_SUPPORTED |
| 1091 |
# define PNG_zTXt_SUPPORTED |
| 1092 |
# endif |
| 1093 |
#endif |
| 1094 |
#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ |
| 1095 |
defined(PNG_WRITE_zTXt_SUPPORTED) |
| 1096 |
# define PNG_WRITE_TEXT_SUPPORTED |
| 1097 |
# ifndef PNG_TEXT_SUPPORTED |
| 1098 |
# define PNG_TEXT_SUPPORTED |
| 1099 |
# endif |
| 1100 |
#endif |
| 1101 |
|
| 1102 |
#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ |
| 1103 |
|
| 1104 |
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS |
| 1105 |
# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED |
| 1106 |
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED |
| 1107 |
# define PNG_UNKNOWN_CHUNKS_SUPPORTED |
| 1108 |
# endif |
| 1109 |
#endif |
| 1110 |
|
| 1111 |
#ifndef PNG_NO_HANDLE_AS_UNKNOWN |
| 1112 |
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| 1113 |
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| 1114 |
# endif |
| 1115 |
#endif |
| 1116 |
#endif /* PNG_WRITE_SUPPORTED */ |
| 1117 |
|
| 1118 |
/* Turn this off to disable png_read_png() and |
| 1119 |
* png_write_png() and leave the row_pointers member |
| 1120 |
* out of the info structure. |
| 1121 |
*/ |
| 1122 |
#ifndef PNG_NO_INFO_IMAGE |
| 1123 |
# define PNG_INFO_IMAGE_SUPPORTED |
| 1124 |
#endif |
| 1125 |
|
| 1126 |
/* need the time information for reading tIME chunks */ |
| 1127 |
#if defined(PNG_tIME_SUPPORTED) |
| 1128 |
# if !defined(_WIN32_WCE) |
| 1129 |
/* "time.h" functions are not supported on WindowsCE */ |
| 1130 |
# include <time.h> |
| 1131 |
# endif |
| 1132 |
#endif |
| 1133 |
|
| 1134 |
/* Some typedefs to get us started. These should be safe on most of the |
| 1135 |
* common platforms. The typedefs should be at least as large as the |
| 1136 |
* numbers suggest (a png_uint_32 must be at least 32 bits long), but they |
| 1137 |
* don't have to be exactly that size. Some compilers dislike passing |
| 1138 |
* unsigned shorts as function parameters, so you may be better off using |
| 1139 |
* unsigned int for png_uint_16. Likewise, for 64-bit systems, you may |
| 1140 |
* want to have unsigned int for png_uint_32 instead of unsigned long. |
| 1141 |
*/ |
| 1142 |
|
| 1143 |
typedef unsigned long png_uint_32; |
| 1144 |
typedef long png_int_32; |
| 1145 |
typedef unsigned short png_uint_16; |
| 1146 |
typedef short png_int_16; |
| 1147 |
typedef unsigned char png_byte; |
| 1148 |
|
| 1149 |
/* This is usually size_t. It is typedef'ed just in case you need it to |
| 1150 |
change (I'm not sure if you will or not, so I thought I'd be safe) */ |
| 1151 |
#ifdef PNG_SIZE_T |
| 1152 |
typedef PNG_SIZE_T png_size_t; |
| 1153 |
# define png_sizeof(x) png_convert_size(sizeof(x)) |
| 1154 |
#else |
| 1155 |
typedef size_t png_size_t; |
| 1156 |
# define png_sizeof(x) sizeof(x) |
| 1157 |
#endif |
| 1158 |
|
| 1159 |
/* The following is needed for medium model support. It cannot be in the |
| 1160 |
* PNG_INTERNAL section. Needs modification for other compilers besides |
| 1161 |
* MSC. Model independent support declares all arrays and pointers to be |
| 1162 |
* large using the far keyword. The zlib version used must also support |
| 1163 |
* model independent data. As of version zlib 1.0.4, the necessary changes |
| 1164 |
* have been made in zlib. The USE_FAR_KEYWORD define triggers other |
| 1165 |
* changes that are needed. (Tim Wegner) |
| 1166 |
*/ |
| 1167 |
|
| 1168 |
/* Separate compiler dependencies (problem here is that zlib.h always |
| 1169 |
defines FAR. (SJT) */ |
| 1170 |
#ifdef __BORLANDC__ |
| 1171 |
# if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) |
| 1172 |
# define LDATA 1 |
| 1173 |
# else |
| 1174 |
# define LDATA 0 |
| 1175 |
# endif |
| 1176 |
/* GRR: why is Cygwin in here? Cygwin is not Borland C... */ |
| 1177 |
# if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__) |
| 1178 |
# define PNG_MAX_MALLOC_64K |
| 1179 |
# if (LDATA != 1) |
| 1180 |
# ifndef FAR |
| 1181 |
# define FAR __far |
| 1182 |
# endif |
| 1183 |
# define USE_FAR_KEYWORD |
| 1184 |
# endif /* LDATA != 1 */ |
| 1185 |
/* Possibly useful for moving data out of default segment. |
| 1186 |
* Uncomment it if you want. Could also define FARDATA as |
| 1187 |
* const if your compiler supports it. (SJT) |
| 1188 |
# define FARDATA FAR |
| 1189 |
*/ |
| 1190 |
# endif /* __WIN32__, __FLAT__, __CYGWIN__ */ |
| 1191 |
#endif /* __BORLANDC__ */ |
| 1192 |
|
| 1193 |
|
| 1194 |
/* Suggest testing for specific compiler first before testing for |
| 1195 |
* FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM, |
| 1196 |
* making reliance oncertain keywords suspect. (SJT) |
| 1197 |
*/ |
| 1198 |
|
| 1199 |
/* MSC Medium model */ |
| 1200 |
#if defined(FAR) |
| 1201 |
# if defined(M_I86MM) |
| 1202 |
# define USE_FAR_KEYWORD |
| 1203 |
# define FARDATA FAR |
| 1204 |
# include <dos.h> |
| 1205 |
# endif |
| 1206 |
#endif |
| 1207 |
|
| 1208 |
/* SJT: default case */ |
| 1209 |
#ifndef FAR |
| 1210 |
# define FAR |
| 1211 |
#endif |
| 1212 |
|
| 1213 |
/* At this point FAR is always defined */ |
| 1214 |
#ifndef FARDATA |
| 1215 |
# define FARDATA |
| 1216 |
#endif |
| 1217 |
|
| 1218 |
/* Typedef for floating-point numbers that are converted |
| 1219 |
to fixed-point with a multiple of 100,000, e.g., int_gamma */ |
| 1220 |
typedef png_int_32 png_fixed_point; |
| 1221 |
|
| 1222 |
/* Add typedefs for pointers */ |
| 1223 |
typedef void FAR * png_voidp; |
| 1224 |
typedef png_byte FAR * png_bytep; |
| 1225 |
typedef png_uint_32 FAR * png_uint_32p; |
| 1226 |
typedef png_int_32 FAR * png_int_32p; |
| 1227 |
typedef png_uint_16 FAR * png_uint_16p; |
| 1228 |
typedef png_int_16 FAR * png_int_16p; |
| 1229 |
typedef PNG_CONST char FAR * png_const_charp; |
| 1230 |
typedef char FAR * png_charp; |
| 1231 |
typedef png_fixed_point FAR * png_fixed_point_p; |
| 1232 |
|
| 1233 |
#ifndef PNG_NO_STDIO |
| 1234 |
#if defined(_WIN32_WCE) |
| 1235 |
typedef HANDLE png_FILE_p; |
| 1236 |
#else |
| 1237 |
typedef FILE * png_FILE_p; |
| 1238 |
#endif |
| 1239 |
#endif |
| 1240 |
|
| 1241 |
#ifdef PNG_FLOATING_POINT_SUPPORTED |
| 1242 |
typedef double FAR * png_doublep; |
| 1243 |
#endif |
| 1244 |
|
| 1245 |
/* Pointers to pointers; i.e. arrays */ |
| 1246 |
typedef png_byte FAR * FAR * png_bytepp; |
| 1247 |
typedef png_uint_32 FAR * FAR * png_uint_32pp; |
| 1248 |
typedef png_int_32 FAR * FAR * png_int_32pp; |
| 1249 |
typedef png_uint_16 FAR * FAR * png_uint_16pp; |
| 1250 |
typedef png_int_16 FAR * FAR * png_int_16pp; |
| 1251 |
typedef PNG_CONST char FAR * FAR * png_const_charpp; |
| 1252 |
typedef char FAR * FAR * png_charpp; |
| 1253 |
typedef png_fixed_point FAR * FAR * png_fixed_point_pp; |
| 1254 |
#ifdef PNG_FLOATING_POINT_SUPPORTED |
| 1255 |
typedef double FAR * FAR * png_doublepp; |
| 1256 |
#endif |
| 1257 |
|
| 1258 |
/* Pointers to pointers to pointers; i.e., pointer to array */ |
| 1259 |
typedef char FAR * FAR * FAR * png_charppp; |
| 1260 |
|
| 1261 |
#if defined(PNG_1_0_X) || defined(PNG_1_2_X) |
| 1262 |
/* SPC - Is this stuff deprecated? */ |
| 1263 |
/* It'll be removed as of libpng-1.4.0 - GR-P */ |
| 1264 |
/* libpng typedefs for types in zlib. If zlib changes |
| 1265 |
* or another compression library is used, then change these. |
| 1266 |
* Eliminates need to change all the source files. |
| 1267 |
*/ |
| 1268 |
typedef charf * png_zcharp; |
| 1269 |
typedef charf * FAR * png_zcharpp; |
| 1270 |
typedef z_stream FAR * png_zstreamp; |
| 1271 |
#endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */ |
| 1272 |
|
| 1273 |
/* |
| 1274 |
* Define PNG_BUILD_DLL if the module being built is a Windows |
| 1275 |
* LIBPNG DLL. |
| 1276 |
* |
| 1277 |
* Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL. |
| 1278 |
* It is equivalent to Microsoft predefined macro _DLL that is |
| 1279 |
* automatically defined when you compile using the share |
| 1280 |
* version of the CRT (C Run-Time library) |
| 1281 |
* |
| 1282 |
* The cygwin mods make this behavior a little different: |
| 1283 |
* Define PNG_BUILD_DLL if you are building a dll for use with cygwin |
| 1284 |
* Define PNG_STATIC if you are building a static library for use with cygwin, |
| 1285 |
* -or- if you are building an application that you want to link to the |
| 1286 |
* static library. |
| 1287 |
* PNG_USE_DLL is defined by default (no user action needed) unless one of |
| 1288 |
* the other flags is defined. |
| 1289 |
*/ |
| 1290 |
|
| 1291 |
#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) |
| 1292 |
# define PNG_DLL |
| 1293 |
#endif |
| 1294 |
/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib. |
| 1295 |
* When building a static lib, default to no GLOBAL ARRAYS, but allow |
| 1296 |
* command-line override |
| 1297 |
*/ |
| 1298 |
#if defined(__CYGWIN__) |
| 1299 |
# if !defined(PNG_STATIC) |
| 1300 |
# if defined(PNG_USE_GLOBAL_ARRAYS) |
| 1301 |
# undef PNG_USE_GLOBAL_ARRAYS |
| 1302 |
# endif |
| 1303 |
# if !defined(PNG_USE_LOCAL_ARRAYS) |
| 1304 |
# define PNG_USE_LOCAL_ARRAYS |
| 1305 |
# endif |
| 1306 |
# else |
| 1307 |
# if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS) |
| 1308 |
# if defined(PNG_USE_GLOBAL_ARRAYS) |
| 1309 |
# undef PNG_USE_GLOBAL_ARRAYS |
| 1310 |
# endif |
| 1311 |
# endif |
| 1312 |
# endif |
| 1313 |
# if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) |
| 1314 |
# define PNG_USE_LOCAL_ARRAYS |
| 1315 |
# endif |
| 1316 |
#endif |
| 1317 |
|
| 1318 |
/* Do not use global arrays (helps with building DLL's) |
| 1319 |
* They are no longer used in libpng itself, since version 1.0.5c, |
| 1320 |
* but might be required for some pre-1.0.5c applications. |
| 1321 |
*/ |
| 1322 |
#if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) |
| 1323 |
# if defined(PNG_NO_GLOBAL_ARRAYS) || \ |
| 1324 |
(defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER) |
| 1325 |
# define PNG_USE_LOCAL_ARRAYS |
| 1326 |
# else |
| 1327 |
# define PNG_USE_GLOBAL_ARRAYS |
| 1328 |
# endif |
| 1329 |
#endif |
| 1330 |
|
| 1331 |
#if defined(__CYGWIN__) |
| 1332 |
# undef PNGAPI |
| 1333 |
# define PNGAPI __cdecl |
| 1334 |
# undef PNG_IMPEXP |
| 1335 |
# define PNG_IMPEXP |
| 1336 |
#endif |
| 1337 |
|
| 1338 |
/* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall", |
| 1339 |
* you may get warnings regarding the linkage of png_zalloc and png_zfree. |
| 1340 |
* Don't ignore those warnings; you must also reset the default calling |
| 1341 |
* convention in your compiler to match your PNGAPI, and you must build |
| 1342 |
* zlib and your applications the same way you build libpng. |
| 1343 |
*/ |
| 1344 |
|
| 1345 |
#if defined(__MINGW32__) && !defined(PNG_MODULEDEF) |
| 1346 |
# ifndef PNG_NO_MODULEDEF |
| 1347 |
# define PNG_NO_MODULEDEF |
| 1348 |
# endif |
| 1349 |
#endif |
| 1350 |
|
| 1351 |
#if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF) |
| 1352 |
# define PNG_IMPEXP |
| 1353 |
#endif |
| 1354 |
|
| 1355 |
#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ |
| 1356 |
(( defined(_Windows) || defined(_WINDOWS) || \ |
| 1357 |
defined(WIN32) || defined(_WIN32) || defined(__WIN32__) )) |
| 1358 |
|
| 1359 |
# ifndef PNGAPI |
| 1360 |
# if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) |
| 1361 |
# define PNGAPI __cdecl |
| 1362 |
# else |
| 1363 |
# define PNGAPI _cdecl |
| 1364 |
# endif |
| 1365 |
# endif |
| 1366 |
|
| 1367 |
# if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \ |
| 1368 |
0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */) |
| 1369 |
# define PNG_IMPEXP |
| 1370 |
# endif |
| 1371 |
|
| 1372 |
# if !defined(PNG_IMPEXP) |
| 1373 |
|
| 1374 |
# define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol |
| 1375 |
# define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol |
| 1376 |
|
| 1377 |
/* Borland/Microsoft */ |
| 1378 |
# if defined(_MSC_VER) || defined(__BORLANDC__) |
| 1379 |
# if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500) |
| 1380 |
# define PNG_EXPORT PNG_EXPORT_TYPE1 |
| 1381 |
# else |
| 1382 |
# define PNG_EXPORT PNG_EXPORT_TYPE2 |
| 1383 |
# if defined(PNG_BUILD_DLL) |
| 1384 |
# define PNG_IMPEXP __export |
| 1385 |
# else |
| 1386 |
# define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in |
| 1387 |
VC++ */ |
| 1388 |
# endif /* Exists in Borland C++ for |
| 1389 |
C++ classes (== huge) */ |
| 1390 |
# endif |
| 1391 |
# endif |
| 1392 |
|
| 1393 |
# if !defined(PNG_IMPEXP) |
| 1394 |
# if defined(PNG_BUILD_DLL) |
| 1395 |
# define PNG_IMPEXP __declspec(dllexport) |
| 1396 |
# else |
| 1397 |
# define PNG_IMPEXP __declspec(dllimport) |
| 1398 |
# endif |
| 1399 |
# endif |
| 1400 |
# endif /* PNG_IMPEXP */ |
| 1401 |
#else /* !(DLL || non-cygwin WINDOWS) */ |
| 1402 |
# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__) |
| 1403 |
# ifndef PNGAPI |
| 1404 |
# define PNGAPI _System |
| 1405 |
# endif |
| 1406 |
# else |
| 1407 |
# if 0 /* ... other platforms, with other meanings */ |
| 1408 |
# endif |
| 1409 |
# endif |
| 1410 |
#endif |
| 1411 |
|
| 1412 |
#ifndef PNGAPI |
| 1413 |
# define PNGAPI |
| 1414 |
#endif |
| 1415 |
#ifndef PNG_IMPEXP |
| 1416 |
# define PNG_IMPEXP |
| 1417 |
#endif |
| 1418 |
|
| 1419 |
#ifdef PNG_BUILDSYMS |
| 1420 |
# ifndef PNG_EXPORT |
| 1421 |
# define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END |
| 1422 |
# endif |
| 1423 |
# ifdef PNG_USE_GLOBAL_ARRAYS |
| 1424 |
# ifndef PNG_EXPORT_VAR |
| 1425 |
# define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT |
| 1426 |
# endif |
| 1427 |
# endif |
| 1428 |
#endif |
| 1429 |
|
| 1430 |
#ifndef PNG_EXPORT |
| 1431 |
# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol |
| 1432 |
#endif |
| 1433 |
|
| 1434 |
#ifdef PNG_USE_GLOBAL_ARRAYS |
| 1435 |
# ifndef PNG_EXPORT_VAR |
| 1436 |
# define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type |
| 1437 |
# endif |
| 1438 |
#endif |
| 1439 |
|
| 1440 |
/* User may want to use these so they are not in PNG_INTERNAL. Any library |
| 1441 |
* functions that are passed far data must be model independent. |
| 1442 |
*/ |
| 1443 |
|
| 1444 |
#ifndef PNG_ABORT |
| 1445 |
# define PNG_ABORT() abort() |
| 1446 |
#endif |
| 1447 |
|
| 1448 |
#ifdef PNG_SETJMP_SUPPORTED |
| 1449 |
# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf) |
| 1450 |
#else |
| 1451 |
# define png_jmpbuf(png_ptr) \ |
| 1452 |
(LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED) |
| 1453 |
#endif |
| 1454 |
|
| 1455 |
#if defined(USE_FAR_KEYWORD) /* memory model independent fns */ |
| 1456 |
/* use this to make far-to-near assignments */ |
| 1457 |
# define CHECK 1 |
| 1458 |
# define NOCHECK 0 |
| 1459 |
# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) |
| 1460 |
# define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK)) |
| 1461 |
# define png_snprintf _fsnprintf /* Added to v 1.2.19 */ |
| 1462 |
# define png_strlen _fstrlen |
| 1463 |
# define png_memcmp _fmemcmp /* SJT: added */ |
| 1464 |
# define png_memcpy _fmemcpy |
| 1465 |
# define png_memset _fmemset |
| 1466 |
#else /* use the usual functions */ |
| 1467 |
# define CVT_PTR(ptr) (ptr) |
| 1468 |
# define CVT_PTR_NOCHECK(ptr) (ptr) |
| 1469 |
# ifndef PNG_NO_SNPRINTF |
| 1470 |
# ifdef _MSC_VER |
| 1471 |
# define png_snprintf _snprintf /* Added to v 1.2.19 */ |
| 1472 |
# define png_snprintf2 _snprintf |
| 1473 |
# define png_snprintf6 _snprintf |
| 1474 |
# else |
| 1475 |
# define png_snprintf snprintf /* Added to v 1.2.19 */ |
| 1476 |
# define png_snprintf2 snprintf |
| 1477 |
# define png_snprintf6 snprintf |
| 1478 |
# endif |
| 1479 |
# else |
| 1480 |
/* You don't have or don't want to use snprintf(). Caution: Using |
| 1481 |
* sprintf instead of snprintf exposes your application to accidental |
| 1482 |
* or malevolent buffer overflows. If you don't have snprintf() |
| 1483 |
* as a general rule you should provide one (you can get one from |
| 1484 |
* Portable OpenSSH). */ |
| 1485 |
# define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1) |
| 1486 |
# define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2) |
| 1487 |
# define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \ |
| 1488 |
sprintf(s1,fmt,x1,x2,x3,x4,x5,x6) |
| 1489 |
# endif |
| 1490 |
# define png_strlen strlen |
| 1491 |
# define png_memcmp memcmp /* SJT: added */ |
| 1492 |
# define png_memcpy memcpy |
| 1493 |
# define png_memset memset |
| 1494 |
#endif |
| 1495 |
/* End of memory model independent support */ |
| 1496 |
|
| 1497 |
/* Just a little check that someone hasn't tried to define something |
| 1498 |
* contradictory. |
| 1499 |
*/ |
| 1500 |
#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K) |
| 1501 |
# undef PNG_ZBUF_SIZE |
| 1502 |
# define PNG_ZBUF_SIZE 65536L |
| 1503 |
#endif |
| 1504 |
|
| 1505 |
/* Added at libpng-1.2.8 */ |
| 1506 |
#endif /* PNG_VERSION_INFO_ONLY */ |
| 1507 |
|
| 1508 |
#endif /* PNGCONF_H */ |
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