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Update libpng. 

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1789 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
ramapcsx2 2009-09-08 19:00:19 +00:00
parent 4b4422d2dc
commit eec90508ff
22 changed files with 5420 additions and 13064 deletions
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68
3rdparty/wxWidgets/build/msw/wx_core_2008.vcproj vendored
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@ -4270,40 +4270,6 @@
/> />
</FileConfiguration> </FileConfiguration>
</File> </File>
<File
RelativePath="..\..\src\png\pnggccrd.c"
>
<FileConfiguration
Name="Debug|Win32"
>
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"
PrecompiledHeaderThrough=""
PrecompiledHeaderFile=""
/>
</FileConfiguration>
<FileConfiguration
Name="Release|Win32"
>
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"
PrecompiledHeaderThrough=""
PrecompiledHeaderFile=""
/>
</FileConfiguration>
<FileConfiguration
Name="Devel|Win32"
>
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"
PrecompiledHeaderThrough=""
PrecompiledHeaderFile=""
/>
</FileConfiguration>
</File>
<File <File
RelativePath="..\..\src\png\pngget.c" RelativePath="..\..\src\png\pngget.c"
> >
@ -4644,40 +4610,6 @@
/> />
</FileConfiguration> </FileConfiguration>
</File> </File>
<File
RelativePath="..\..\src\png\pngvcrd.c"
>
<FileConfiguration
Name="Debug|Win32"
>
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"
PrecompiledHeaderThrough=""
PrecompiledHeaderFile=""
/>
</FileConfiguration>
<FileConfiguration
Name="Release|Win32"
>
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"
PrecompiledHeaderThrough=""
PrecompiledHeaderFile=""
/>
</FileConfiguration>
<FileConfiguration
Name="Devel|Win32"
>
<Tool
Name="VCCLCompilerTool"
UsePrecompiledHeader="0"
PrecompiledHeaderThrough=""
PrecompiledHeaderFile=""
/>
</FileConfiguration>
</File>
<File <File
RelativePath="..\..\src\png\pngwio.c" RelativePath="..\..\src\png\pngwio.c"
> >

111
3rdparty/wxWidgets/src/png/LICENSE vendored Normal file
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@ -0,0 +1,111 @@
This copy of the libpng notices is provided for your convenience. In case of
any discrepancy between this copy and the notices in the file png.h that is
included in the libpng distribution, the latter shall prevail.
COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
If you modify libpng you may insert additional notices immediately following
this sentence.
This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.2.39, August 13, 2009, are
Copyright (c) 2004, 2006-2009 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
Cosmin Truta
libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors
Simon-Pierre Cadieux
Eric S. Raymond
Gilles Vollant
and with the following additions to the disclaimer:
There is no warranty against interference with your enjoyment of the
library or against infringement. There is no warranty that our
efforts or the library will fulfill any of your particular purposes
or needs. This library is provided with all faults, and the entire
risk of satisfactory quality, performance, accuracy, and effort is with
the user.
libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-0.96,
with the following individuals added to the list of Contributing Authors:
Tom Lane
Glenn Randers-Pehrson
Willem van Schaik
libpng versions 0.89, June 1996, through 0.96, May 1997, are
Copyright (c) 1996, 1997 Andreas Dilger
Distributed according to the same disclaimer and license as libpng-0.88,
with the following individuals added to the list of Contributing Authors:
John Bowler
Kevin Bracey
Sam Bushell
Magnus Holmgren
Greg Roelofs
Tom Tanner
libpng versions 0.5, May 1995, through 0.88, January 1996, are
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
For the purposes of this copyright and license, "Contributing Authors"
is defined as the following set of individuals:
Andreas Dilger
Dave Martindale
Guy Eric Schalnat
Paul Schmidt
Tim Wegner
The PNG Reference Library is supplied "AS IS". The Contributing Authors
and Group 42, Inc. disclaim all warranties, expressed or implied,
including, without limitation, the warranties of merchantability and of
fitness for any purpose. The Contributing Authors and Group 42, Inc.
assume no liability for direct, indirect, incidental, special, exemplary,
or consequential damages, which may result from the use of the PNG
Reference Library, even if advised of the possibility of such damage.
Permission is hereby granted to use, copy, modify, and distribute this
source code, or portions hereof, for any purpose, without fee, subject
to the following restrictions:
1. The origin of this source code must not be misrepresented.
2. Altered versions must be plainly marked as such and must not
be misrepresented as being the original source.
3. This Copyright notice may not be removed or altered from any
source or altered source distribution.
The Contributing Authors and Group 42, Inc. specifically permit, without
fee, and encourage the use of this source code as a component to
supporting the PNG file format in commercial products. If you use this
source code in a product, acknowledgment is not required but would be
appreciated.
A "png_get_copyright" function is available, for convenient use in "about"
boxes and the like:
printf("%s",png_get_copyright(NULL));
Also, the PNG logo (in PNG format, of course) is supplied in the
files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
August 13, 2009

688
3rdparty/wxWidgets/src/png/png.c vendored
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File diff suppressed because it is too large Load Diff

848
3rdparty/wxWidgets/src/png/png.h vendored
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File diff suppressed because it is too large Load Diff

378
3rdparty/wxWidgets/src/png/pngconf.h vendored
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@ -1,11 +1,14 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng version 1.2.7 - September 12, 2004 * libpng version 1.2.39 - August 13, 2009
* For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/ */
/* Any machine specific code is near the front of this file, so if you /* Any machine specific code is near the front of this file, so if you
@ -17,10 +20,72 @@
#ifndef PNGCONF_H #ifndef PNGCONF_H
#define PNGCONF_H #define PNGCONF_H
#define PNG_1_2_X
/*
* PNG_USER_CONFIG has to be defined on the compiler command line. This
* includes the resource compiler for Windows DLL configurations.
*/
#ifdef PNG_USER_CONFIG #ifdef PNG_USER_CONFIG
# ifndef PNG_USER_PRIVATEBUILD
# define PNG_USER_PRIVATEBUILD
# endif
#include "pngusr.h" #include "pngusr.h"
#endif #endif
/* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */
#ifdef PNG_CONFIGURE_LIBPNG
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#endif
/*
* Added at libpng-1.2.8
*
* If you create a private DLL you need to define in "pngusr.h" the followings:
* #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
* the DLL was built>
* e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons."
* #define PNG_USER_DLLFNAME_POSTFIX <two-letter postfix that serve to
* distinguish your DLL from those of the official release. These
* correspond to the trailing letters that come after the version
* number and must match your private DLL name>
* e.g. // private DLL "libpng13gx.dll"
* #define PNG_USER_DLLFNAME_POSTFIX "gx"
*
* The following macros are also at your disposal if you want to complete the
* DLL VERSIONINFO structure.
* - PNG_USER_VERSIONINFO_COMMENTS
* - PNG_USER_VERSIONINFO_COMPANYNAME
* - PNG_USER_VERSIONINFO_LEGALTRADEMARKS
*/
#ifdef __STDC__
#ifdef SPECIALBUILD
# pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\
are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.")
#endif
#ifdef PRIVATEBUILD
# pragma message("PRIVATEBUILD is deprecated.\
Use PNG_USER_PRIVATEBUILD instead.")
# define PNG_USER_PRIVATEBUILD PRIVATEBUILD
#endif
#endif /* __STDC__ */
#ifndef PNG_VERSION_INFO_ONLY
/* End of material added to libpng-1.2.8 */
/* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble
Restored at libpng-1.2.21 */
#if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \
!defined(PNG_WARN_UNINITIALIZED_ROW)
# define PNG_WARN_UNINITIALIZED_ROW 1
#endif
/* End of material added at libpng-1.2.19/1.2.21 */
/* This is the size of the compression buffer, and thus the size of /* This is the size of the compression buffer, and thus the size of
* an IDAT chunk. Make this whatever size you feel is best for your * an IDAT chunk. Make this whatever size you feel is best for your
* machine. One of these will be allocated per png_struct. When this * machine. One of these will be allocated per png_struct. When this
@ -171,6 +236,8 @@
# include <windows.h> # include <windows.h>
/* Console I/O functions are not supported on WindowsCE */ /* Console I/O functions are not supported on WindowsCE */
# define PNG_NO_CONSOLE_IO # define PNG_NO_CONSOLE_IO
/* abort() may not be supported on some/all Windows CE platforms */
# define PNG_ABORT() exit(-1)
# ifdef PNG_DEBUG # ifdef PNG_DEBUG
# undef PNG_DEBUG # undef PNG_DEBUG
# endif # endif
@ -222,6 +289,7 @@
# define PNGARG(arglist) arglist # define PNGARG(arglist) arglist
#endif /* _NO_PROTO */ #endif /* _NO_PROTO */
#endif /* OF */ #endif /* OF */
#endif /* PNGARG */ #endif /* PNGARG */
@ -232,7 +300,7 @@
*/ */
#ifndef MACOS #ifndef MACOS
# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ # if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
defined(THINK_C) || (defined(__SC__) && !defined(__DMC__))|| defined(TARGET_OS_MAC) defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
# define MACOS # define MACOS
# endif # endif
#endif #endif
@ -249,28 +317,38 @@
#ifdef PNG_SETJMP_SUPPORTED #ifdef PNG_SETJMP_SUPPORTED
/* This is an attempt to force a single setjmp behaviour on Linux. If /* This is an attempt to force a single setjmp behaviour on Linux. If
* the X config stuff didn't define _BSD_SOURCE we wouldn't need this. * the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
*
* You can bypass this test if you know that your application uses exactly
* the same setjmp.h that was included when libpng was built. Only define
* PNG_SKIP_SETJMP_CHECK while building your application, prior to the
* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
* while building a separate libpng library for general use.
*/ */
# ifdef __linux__ # ifndef PNG_SKIP_SETJMP_CHECK
# ifdef _BSD_SOURCE # ifdef __linux__
# define PNG_SAVE_BSD_SOURCE # ifdef _BSD_SOURCE
# undef _BSD_SOURCE # define PNG_SAVE_BSD_SOURCE
# endif # undef _BSD_SOURCE
# ifdef _SETJMP_H # endif
/* If you encounter a compiler error here, see the explanation # ifdef _SETJMP_H
* near the end of INSTALL. /* If you encounter a compiler error here, see the explanation
*/ * near the end of INSTALL.
__png.h__ already includes setjmp.h; */
__dont__ include it again.; __pngconf.h__ in libpng already includes setjmp.h;
# endif __dont__ include it again.;
# endif /* __linux__ */ # endif
# endif /* __linux__ */
# endif /* PNG_SKIP_SETJMP_CHECK */
/* include setjmp.h for error handling */ /* include setjmp.h for error handling */
# include <setjmp.h> # include <setjmp.h>
# ifdef __linux__ # ifdef __linux__
# ifdef PNG_SAVE_BSD_SOURCE # ifdef PNG_SAVE_BSD_SOURCE
# define _BSD_SOURCE # ifndef _BSD_SOURCE
# define _BSD_SOURCE
# endif
# undef PNG_SAVE_BSD_SOURCE # undef PNG_SAVE_BSD_SOURCE
# endif # endif
# endif /* __linux__ */ # endif /* __linux__ */
@ -409,21 +487,33 @@
*/ */
/* The size of the png_text structure changed in libpng-1.0.6 when /* The size of the png_text structure changed in libpng-1.0.6 when
* iTXt is supported. It is turned off by default, to support old apps * iTXt support was added. iTXt support was turned off by default through
* that malloc the png_text structure instead of calling png_set_text() * libpng-1.2.x, to support old apps that malloc the png_text structure
* and letting libpng malloc it. It will be turned on by default in * instead of calling png_set_text() and letting libpng malloc it. It
* libpng-1.3.0. * will be turned on by default in libpng-1.4.0.
*/ */
#ifndef PNG_iTXt_SUPPORTED #if defined(PNG_1_0_X) || defined (PNG_1_2_X)
# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt) # ifndef PNG_NO_iTXt_SUPPORTED
# define PNG_NO_iTXt_SUPPORTED
# endif
# ifndef PNG_NO_READ_iTXt
# define PNG_NO_READ_iTXt # define PNG_NO_READ_iTXt
# endif # endif
# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt) # ifndef PNG_NO_WRITE_iTXt
# define PNG_NO_WRITE_iTXt # define PNG_NO_WRITE_iTXt
# endif # endif
#endif #endif
#if !defined(PNG_NO_iTXt_SUPPORTED)
# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt)
# define PNG_READ_iTXt
# endif
# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt)
# define PNG_WRITE_iTXt
# endif
#endif
/* The following support, added after version 1.0.0, can be turned off here en /* The following support, added after version 1.0.0, can be turned off here en
* masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility
* with old applications that require the length of png_struct and png_info * with old applications that require the length of png_struct and png_info
@ -434,6 +524,7 @@
# define PNG_NO_FREE_ME # define PNG_NO_FREE_ME
# define PNG_NO_READ_UNKNOWN_CHUNKS # define PNG_NO_READ_UNKNOWN_CHUNKS
# define PNG_NO_WRITE_UNKNOWN_CHUNKS # define PNG_NO_WRITE_UNKNOWN_CHUNKS
# define PNG_NO_HANDLE_AS_UNKNOWN
# define PNG_NO_READ_USER_CHUNKS # define PNG_NO_READ_USER_CHUNKS
# define PNG_NO_READ_iCCP # define PNG_NO_READ_iCCP
# define PNG_NO_WRITE_iCCP # define PNG_NO_WRITE_iCCP
@ -463,7 +554,7 @@
# define PNG_FREE_ME_SUPPORTED # define PNG_FREE_ME_SUPPORTED
#endif #endif
#if defined(PNG_READ_SUPPORTED) #ifdef PNG_READ_SUPPORTED
#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
!defined(PNG_NO_READ_TRANSFORMS) !defined(PNG_NO_READ_TRANSFORMS)
@ -528,28 +619,30 @@
#endif /* PNG_READ_TRANSFORMS_SUPPORTED */ #endif /* PNG_READ_TRANSFORMS_SUPPORTED */
#if !defined(PNG_NO_PROGRESSIVE_READ) && \ #if !defined(PNG_NO_PROGRESSIVE_READ) && \
!defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive */ !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */
# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ # define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */
#endif /* about interlacing capability! You'll */ #endif /* about interlacing capability! You'll */
/* still have interlacing unless you change the following line: */ /* still have interlacing unless you change the following line: */
#define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */ #define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */
#ifndef PNG_NO_READ_COMPOSITE_NODIV #ifndef PNG_NO_READ_COMPOSITE_NODIV
# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ # ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */
# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ # define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */
# endif # endif
#endif #endif
#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
/* Deprecated, will be removed from version 2.0.0. /* Deprecated, will be removed from version 2.0.0.
Use PNG_MNG_FEATURES_SUPPORTED instead. */ Use PNG_MNG_FEATURES_SUPPORTED instead. */
#ifndef PNG_NO_READ_EMPTY_PLTE #ifndef PNG_NO_READ_EMPTY_PLTE
# define PNG_READ_EMPTY_PLTE_SUPPORTED # define PNG_READ_EMPTY_PLTE_SUPPORTED
#endif #endif
#endif
#endif /* PNG_READ_SUPPORTED */ #endif /* PNG_READ_SUPPORTED */
#if defined(PNG_WRITE_SUPPORTED) #ifdef PNG_WRITE_SUPPORTED
# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ # if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
!defined(PNG_NO_WRITE_TRANSFORMS) !defined(PNG_NO_WRITE_TRANSFORMS)
@ -589,11 +682,15 @@
# endif # endif
#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */
#if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \
!defined(PNG_WRITE_INTERLACING_SUPPORTED)
#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant #define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant
encoders, but can cause trouble encoders, but can cause trouble
if left undefined */ if left undefined */
#endif
#if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
!defined(PNG_WRITE_WEIGHTED_FILTER) && \
defined(PNG_FLOATING_POINT_SUPPORTED) defined(PNG_FLOATING_POINT_SUPPORTED)
# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED # define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
#endif #endif
@ -602,10 +699,12 @@
# define PNG_WRITE_FLUSH_SUPPORTED # define PNG_WRITE_FLUSH_SUPPORTED
#endif #endif
#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */ /* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
#ifndef PNG_NO_WRITE_EMPTY_PLTE #ifndef PNG_NO_WRITE_EMPTY_PLTE
# define PNG_WRITE_EMPTY_PLTE_SUPPORTED # define PNG_WRITE_EMPTY_PLTE_SUPPORTED
#endif #endif
#endif
#endif /* PNG_WRITE_SUPPORTED */ #endif /* PNG_WRITE_SUPPORTED */
@ -647,21 +746,46 @@
#endif #endif
/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 /* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
even when PNG_USE_PNGVCRD or PNG_USE_PNGGCCRD is not defined */ * and removed from version 1.2.20. The following will be removed
* from libpng-1.4.0
*/
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE)
# ifndef PNG_OPTIMIZED_CODE_SUPPORTED
# define PNG_OPTIMIZED_CODE_SUPPORTED
# endif
#endif
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE) #if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
# ifndef PNG_ASSEMBLER_CODE_SUPPORTED # ifndef PNG_ASSEMBLER_CODE_SUPPORTED
# define PNG_ASSEMBLER_CODE_SUPPORTED # define PNG_ASSEMBLER_CODE_SUPPORTED
# endif # endif
# if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4)
/* work around 64-bit gcc compiler bugs in gcc-3.x */
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
# define PNG_NO_MMX_CODE
# endif
# endif
# if defined(__APPLE__)
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
# define PNG_NO_MMX_CODE
# endif
# endif
# if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh))
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
# define PNG_NO_MMX_CODE
# endif
# endif
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) # if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
# define PNG_MMX_CODE_SUPPORTED # define PNG_MMX_CODE_SUPPORTED
# endif # endif
#endif
/* If you are sure that you don't need thread safety and you are compiling #endif
with PNG_USE_PNGCCRD for an MMX application, you can define this for /* end of obsolete code to be removed from libpng-1.4.0 */
faster execution. See pnggccrd.c.
#define PNG_THREAD_UNSAFE_OK
*/
#if !defined(PNG_1_0_X) #if !defined(PNG_1_0_X)
#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) #if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
@ -688,6 +812,11 @@
# define PNG_USER_HEIGHT_MAX 1000000L # define PNG_USER_HEIGHT_MAX 1000000L
#endif #endif
/* Added at libpng-1.2.34 and 1.4.0 */
#ifndef PNG_STRING_NEWLINE
#define PNG_STRING_NEWLINE "\n"
#endif
/* These are currently experimental features, define them if you want */ /* These are currently experimental features, define them if you want */
/* very little testing */ /* very little testing */
@ -815,14 +944,22 @@
# define PNG_READ_zTXt_SUPPORTED # define PNG_READ_zTXt_SUPPORTED
# define PNG_zTXt_SUPPORTED # define PNG_zTXt_SUPPORTED
#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 */
#ifndef PNG_NO_READ_UNKNOWN_CHUNKS #ifndef PNG_NO_READ_UNKNOWN_CHUNKS
# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED # define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED # ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
# define PNG_UNKNOWN_CHUNKS_SUPPORTED # define PNG_UNKNOWN_CHUNKS_SUPPORTED
# endif # endif
# ifndef PNG_NO_HANDLE_AS_UNKNOWN
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# endif
#endif #endif
#if !defined(PNG_NO_READ_USER_CHUNKS) && \ #if !defined(PNG_NO_READ_USER_CHUNKS) && \
defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
@ -835,17 +972,14 @@
# undef PNG_NO_HANDLE_AS_UNKNOWN # undef PNG_NO_HANDLE_AS_UNKNOWN
# endif # endif
#endif #endif
#ifndef PNG_NO_READ_OPT_PLTE
# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ #ifndef PNG_NO_HANDLE_AS_UNKNOWN
#endif /* optional PLTE chunk in RGB and RGBA images */ # ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ # define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
defined(PNG_READ_zTXt_SUPPORTED) # endif
# define PNG_READ_TEXT_SUPPORTED
# define PNG_TEXT_SUPPORTED
#endif #endif
#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ #ifdef PNG_WRITE_SUPPORTED
#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
#ifdef PNG_NO_WRITE_TEXT #ifdef PNG_NO_WRITE_TEXT
@ -957,17 +1091,6 @@
# define PNG_zTXt_SUPPORTED # define PNG_zTXt_SUPPORTED
# endif # endif
#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) || \ #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
defined(PNG_WRITE_zTXt_SUPPORTED) defined(PNG_WRITE_zTXt_SUPPORTED)
# define PNG_WRITE_TEXT_SUPPORTED # define PNG_WRITE_TEXT_SUPPORTED
@ -978,6 +1101,20 @@
#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
# endif
#endif
#ifndef PNG_NO_HANDLE_AS_UNKNOWN
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
# endif
#endif
#endif /* PNG_WRITE_SUPPORTED */
/* Turn this off to disable png_read_png() and /* Turn this off to disable png_read_png() and
* png_write_png() and leave the row_pointers member * png_write_png() and leave the row_pointers member
* out of the info structure. * out of the info structure.
@ -1013,10 +1150,10 @@ typedef unsigned char png_byte;
change (I'm not sure if you will or not, so I thought I'd be safe) */ change (I'm not sure if you will or not, so I thought I'd be safe) */
#ifdef PNG_SIZE_T #ifdef PNG_SIZE_T
typedef PNG_SIZE_T png_size_t; typedef PNG_SIZE_T png_size_t;
# define png_sizeof(x) png_convert_size(sizeof (x)) # define png_sizeof(x) png_convert_size(sizeof(x))
#else #else
typedef size_t png_size_t; typedef size_t png_size_t;
# define png_sizeof(x) sizeof (x) # define png_sizeof(x) sizeof(x)
#endif #endif
/* The following is needed for medium model support. It cannot be in the /* The following is needed for medium model support. It cannot be in the
@ -1121,6 +1258,9 @@ typedef double FAR * FAR * png_doublepp;
/* Pointers to pointers to pointers; i.e., pointer to array */ /* Pointers to pointers to pointers; i.e., pointer to array */
typedef char FAR * FAR * FAR * png_charppp; typedef char FAR * FAR * FAR * png_charppp;
#if defined(PNG_1_0_X) || defined(PNG_1_2_X)
/* SPC - Is this stuff deprecated? */
/* It'll be removed as of libpng-1.4.0 - GR-P */
/* libpng typedefs for types in zlib. If zlib changes /* libpng typedefs for types in zlib. If zlib changes
* or another compression library is used, then change these. * or another compression library is used, then change these.
* Eliminates need to change all the source files. * Eliminates need to change all the source files.
@ -1128,6 +1268,7 @@ typedef char FAR * FAR * FAR * png_charppp;
typedef charf * png_zcharp; typedef charf * png_zcharp;
typedef charf * FAR * png_zcharpp; typedef charf * FAR * png_zcharpp;
typedef z_stream FAR * png_zstreamp; typedef z_stream FAR * png_zstreamp;
#endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */
/* /*
* Define PNG_BUILD_DLL if the module being built is a Windows * Define PNG_BUILD_DLL if the module being built is a Windows
@ -1179,20 +1320,17 @@ typedef z_stream FAR * png_zstreamp;
* but might be required for some pre-1.0.5c applications. * but might be required for some pre-1.0.5c applications.
*/ */
#if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) #if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
# if defined(PNG_NO_GLOBAL_ARRAYS) || (defined(__GNUC__) && defined(PNG_DLL)) # if defined(PNG_NO_GLOBAL_ARRAYS) || \
(defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER)
# define PNG_USE_LOCAL_ARRAYS # define PNG_USE_LOCAL_ARRAYS
# else # else
# define PNG_USE_GLOBAL_ARRAYS # define PNG_USE_GLOBAL_ARRAYS
# endif # endif
#endif #endif
#if defined(__CYGWIN__) || defined(__WINE__) #if defined(__CYGWIN__)
# undef PNGAPI # undef PNGAPI
# if defined(__WINE__) # define PNGAPI __cdecl
# define PNGAPI
# else
# define PNGAPI __cdecl
# endif
# undef PNG_IMPEXP # undef PNG_IMPEXP
# define PNG_IMPEXP # define PNG_IMPEXP
#endif #endif
@ -1268,21 +1406,7 @@ typedef z_stream FAR * png_zstreamp;
# else # else
# if 0 /* ... other platforms, with other meanings */ # if 0 /* ... other platforms, with other meanings */
# endif # endif
# endif # endif
#endif
#if defined(__VISAGECPP__)
/* I don't compile with this _System linkage for wxWidgets */
# ifdef PNGAPI
# undef PNGAPI
# endif
# define PNGAPI _Optlink
# define PNG_IMPEXP
# define PNG_USE_LOCAL_ARRAYS
# ifdef PNG_USE_GLOBAL_ARRAYS
# undef PNG_USE_GLOBAL_ARRAYS
# endif
extern const char png_libpng_ver[18];
#endif #endif
#ifndef PNGAPI #ifndef PNGAPI
@ -1292,6 +1416,17 @@ extern const char png_libpng_ver[18];
# define PNG_IMPEXP # define PNG_IMPEXP
#endif #endif
#ifdef PNG_BUILDSYMS
# ifndef PNG_EXPORT
# define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END
# endif
# ifdef PNG_USE_GLOBAL_ARRAYS
# ifndef PNG_EXPORT_VAR
# define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT
# endif
# endif
#endif
#ifndef PNG_EXPORT #ifndef PNG_EXPORT
# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol # define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
#endif #endif
@ -1323,8 +1458,7 @@ extern const char png_libpng_ver[18];
# define NOCHECK 0 # define NOCHECK 0
# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) # 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 CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
# define png_strcpy _fstrcpy # define png_snprintf _fsnprintf /* Added to v 1.2.19 */
# define png_strncpy _fstrncpy /* Added to v 1.2.6 */
# define png_strlen _fstrlen # define png_strlen _fstrlen
# define png_memcmp _fmemcmp /* SJT: added */ # define png_memcmp _fmemcmp /* SJT: added */
# define png_memcpy _fmemcpy # define png_memcpy _fmemcpy
@ -1332,8 +1466,27 @@ extern const char png_libpng_ver[18];
#else /* use the usual functions */ #else /* use the usual functions */
# define CVT_PTR(ptr) (ptr) # define CVT_PTR(ptr) (ptr)
# define CVT_PTR_NOCHECK(ptr) (ptr) # define CVT_PTR_NOCHECK(ptr) (ptr)
# define png_strcpy strcpy # ifndef PNG_NO_SNPRINTF
# define png_strncpy strncpy /* Added to v 1.2.6 */ # ifdef _MSC_VER
# define png_snprintf _snprintf /* Added to v 1.2.19 */
# define png_snprintf2 _snprintf
# define png_snprintf6 _snprintf
# else
# define png_snprintf snprintf /* Added to v 1.2.19 */
# define png_snprintf2 snprintf
# define png_snprintf6 snprintf
# endif
# else
/* You don't have or don't want to use snprintf(). Caution: Using
* sprintf instead of snprintf exposes your application to accidental
* or malevolent buffer overflows. If you don't have snprintf()
* as a general rule you should provide one (you can get one from
* Portable OpenSSH). */
# define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1)
# define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2)
# define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \
sprintf(s1,fmt,x1,x2,x3,x4,x5,x6)
# endif
# define png_strlen strlen # define png_strlen strlen
# define png_memcmp memcmp /* SJT: added */ # define png_memcmp memcmp /* SJT: added */
# define png_memcpy memcpy # define png_memcpy memcpy
@ -1349,46 +1502,7 @@ extern const char png_libpng_ver[18];
# define PNG_ZBUF_SIZE 65536L # define PNG_ZBUF_SIZE 65536L
#endif #endif
#ifdef PNG_READ_SUPPORTED /* Added at libpng-1.2.8 */
/* Prior to libpng-1.0.9, this block was in pngasmrd.h */ #endif /* PNG_VERSION_INFO_ONLY */
#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 */ #endif /* PNGCONF_H */

227
3rdparty/wxWidgets/src/png/pngerror.c vendored
View File

@ -1,12 +1,15 @@
/* pngerror.c - stub functions for i/o and memory allocation /* pngerror.c - stub functions for i/o and memory allocation
* *
* libpng version 1.2.7 - September 12, 2004 * Last changed in libpng 1.2.37 [June 4, 2009]
* For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* *
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* This file provides a location for all error handling. Users who * This file provides a location for all error handling. Users who
* need special error handling are expected to write replacement functions * need special error handling are expected to write replacement functions
* and use png_set_error_fn() to use those functions. See the instructions * and use png_set_error_fn() to use those functions. See the instructions
@ -15,51 +18,60 @@
#define PNG_INTERNAL #define PNG_INTERNAL
#include "png.h" #include "png.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
static void /* PRIVATE */ static void /* PRIVATE */
png_default_error PNGARG((png_structp png_ptr, png_default_error PNGARG((png_structp png_ptr,
png_const_charp error_message)); png_const_charp error_message));
#ifndef PNG_NO_WARNINGS
static void /* PRIVATE */ static void /* PRIVATE */
png_default_warning PNGARG((png_structp png_ptr, png_default_warning PNGARG((png_structp png_ptr,
png_const_charp warning_message)); png_const_charp warning_message));
#endif /* PNG_NO_WARNINGS */
/* This function is called whenever there is a fatal error. This function /* This function is called whenever there is a fatal error. This function
* should not be changed. If there is a need to handle errors differently, * should not be changed. If there is a need to handle errors differently,
* you should supply a replacement error function and use png_set_error_fn() * you should supply a replacement error function and use png_set_error_fn()
* to replace the error function at run-time. * to replace the error function at run-time.
*/ */
#ifndef PNG_NO_ERROR_TEXT
void PNGAPI void PNGAPI
png_error(png_structp png_ptr, png_const_charp error_message) png_error(png_structp png_ptr, png_const_charp error_message)
{ {
#ifdef PNG_ERROR_NUMBERS_SUPPORTED #ifdef PNG_ERROR_NUMBERS_SUPPORTED
char msg[16]; char msg[16];
if (png_ptr->flags&(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) if (png_ptr != NULL)
{ {
if (*error_message == '#') if (png_ptr->flags&
(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
{ {
int offset; if (*error_message == '#')
for (offset=1; offset<15; offset++) {
if (*(error_message+offset) == ' ') /* Strip "#nnnn " from beginning of error message. */
break; int offset;
if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) for (offset = 1; offset<15; offset++)
{ if (error_message[offset] == ' ')
int i; break;
for (i=0; i<offset-1; i++) if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
msg[i]=error_message[i+1]; {
msg[i]='\0'; int i;
error_message=msg; for (i = 0; i < offset - 1; i++)
} msg[i] = error_message[i + 1];
else msg[i - 1] = '\0';
error_message+=offset; error_message = msg;
} }
else else
{ error_message += offset;
if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) }
{ else
msg[0]='0'; {
msg[1]='\0'; if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
error_message=msg; {
} msg[0] = '0';
msg[1] = '\0';
error_message = msg;
}
}
} }
} }
#endif #endif
@ -70,7 +82,20 @@ png_error(png_structp png_ptr, png_const_charp error_message)
use the default handler, which will not return. */ use the default handler, which will not return. */
png_default_error(png_ptr, error_message); png_default_error(png_ptr, error_message);
} }
#else
void PNGAPI
png_err(png_structp png_ptr)
{
if (png_ptr != NULL && png_ptr->error_fn != NULL)
(*(png_ptr->error_fn))(png_ptr, '\0');
/* If the custom handler doesn't exist, or if it returns,
use the default handler, which will not return. */
png_default_error(png_ptr, '\0');
}
#endif /* PNG_NO_ERROR_TEXT */
#ifndef PNG_NO_WARNINGS
/* This function is called whenever there is a non-fatal error. This function /* This function is called whenever there is a non-fatal error. This function
* should not be changed. If there is a need to handle warnings differently, * should not be changed. If there is a need to handle warnings differently,
* you should supply a replacement warning function and use * you should supply a replacement warning function and use
@ -80,22 +105,28 @@ void PNGAPI
png_warning(png_structp png_ptr, png_const_charp warning_message) png_warning(png_structp png_ptr, png_const_charp warning_message)
{ {
int offset = 0; int offset = 0;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED if (png_ptr != NULL)
if (png_ptr->flags&(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
#endif
{ {
if (*warning_message == '#') #ifdef PNG_ERROR_NUMBERS_SUPPORTED
if (png_ptr->flags&
(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
#endif
{ {
for (offset=1; offset<15; offset++) if (*warning_message == '#')
if (*(warning_message+offset) == ' ') {
break; for (offset = 1; offset < 15; offset++)
if (warning_message[offset] == ' ')
break;
}
} }
} }
if (png_ptr != NULL && png_ptr->warning_fn != NULL) if (png_ptr != NULL && png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_ptr, warning_message+offset); (*(png_ptr->warning_fn))(png_ptr, warning_message + offset);
else else
png_default_warning(png_ptr, warning_message+offset); png_default_warning(png_ptr, warning_message + offset);
} }
#endif /* PNG_NO_WARNINGS */
/* These utilities are used internally to build an error message that relates /* These utilities are used internally to build an error message that relates
* to the current chunk. The chunk name comes from png_ptr->chunk_name, * to the current chunk. The chunk name comes from png_ptr->chunk_name,
@ -109,6 +140,9 @@ static PNG_CONST char png_digit[16] = {
'A', 'B', 'C', 'D', 'E', 'F' 'A', 'B', 'C', 'D', 'E', 'F'
}; };
#define PNG_MAX_ERROR_TEXT 64
#if !defined(PNG_NO_WARNINGS) || !defined(PNG_NO_ERROR_TEXT)
static void /* PRIVATE */ static void /* PRIVATE */
png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
error_message) error_message)
@ -117,7 +151,7 @@ png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
while (iin < 4) while (iin < 4)
{ {
int c = png_ptr->chunk_name[iin++]; int c = png_ptr->chunk_name[iin++];
if (isnonalpha(c)) if (isnonalpha(c))
{ {
buffer[iout++] = '['; buffer[iout++] = '[';
@ -132,31 +166,47 @@ png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
} }
if (error_message == NULL) if (error_message == NULL)
buffer[iout] = 0; buffer[iout] = '\0';
else else
{ {
buffer[iout++] = ':'; buffer[iout++] = ':';
buffer[iout++] = ' '; buffer[iout++] = ' ';
png_strncpy(buffer+iout, error_message, 63); png_memcpy(buffer + iout, error_message, PNG_MAX_ERROR_TEXT);
buffer[iout+63] = 0; buffer[iout + PNG_MAX_ERROR_TEXT - 1] = '\0';
} }
} }
#ifdef PNG_READ_SUPPORTED
void PNGAPI void PNGAPI
png_chunk_error(png_structp png_ptr, png_const_charp error_message) png_chunk_error(png_structp png_ptr, png_const_charp error_message)
{ {
char msg[18+64]; char msg[18+PNG_MAX_ERROR_TEXT];
png_format_buffer(png_ptr, msg, error_message); if (png_ptr == NULL)
png_error(png_ptr, msg); png_error(png_ptr, error_message);
else
{
png_format_buffer(png_ptr, msg, error_message);
png_error(png_ptr, msg);
}
} }
#endif /* PNG_READ_SUPPORTED */
#endif /* !defined(PNG_NO_WARNINGS) || !defined(PNG_NO_ERROR_TEXT) */
#ifndef PNG_NO_WARNINGS
void PNGAPI void PNGAPI
png_chunk_warning(png_structp png_ptr, png_const_charp warning_message) png_chunk_warning(png_structp png_ptr, png_const_charp warning_message)
{ {
char msg[18+64]; char msg[18+PNG_MAX_ERROR_TEXT];
png_format_buffer(png_ptr, msg, warning_message); if (png_ptr == NULL)
png_warning(png_ptr, msg); png_warning(png_ptr, warning_message);
else
{
png_format_buffer(png_ptr, msg, warning_message);
png_warning(png_ptr, msg);
}
} }
#endif /* PNG_NO_WARNINGS */
/* This is the default error handling function. Note that replacements for /* This is the default error handling function. Note that replacements for
* this function MUST NOT RETURN, or the program will likely crash. This * this function MUST NOT RETURN, or the program will likely crash. This
@ -170,50 +220,59 @@ png_default_error(png_structp png_ptr, png_const_charp error_message)
#ifdef PNG_ERROR_NUMBERS_SUPPORTED #ifdef PNG_ERROR_NUMBERS_SUPPORTED
if (*error_message == '#') if (*error_message == '#')
{ {
/* Strip "#nnnn " from beginning of error message. */
int offset; int offset;
char error_number[16]; char error_number[16];
for (offset=0; offset<15; offset++) for (offset = 0; offset<15; offset++)
{ {
error_number[offset] = *(error_message+offset+1); error_number[offset] = error_message[offset + 1];
if (*(error_message+offset) == ' ') if (error_message[offset] == ' ')
break; break;
} }
if((offset > 1) && (offset < 15)) if ((offset > 1) && (offset < 15))
{ {
error_number[offset-1]='\0'; error_number[offset - 1] = '\0';
fprintf(stderr, "libpng error no. %s: %s\n", error_number, fprintf(stderr, "libpng error no. %s: %s",
error_message+offset); error_number, error_message + offset + 1);
fprintf(stderr, PNG_STRING_NEWLINE);
} }
else else
fprintf(stderr, "libpng error: %s, offset=%d\n", error_message,offset); {
fprintf(stderr, "libpng error: %s, offset=%d",
error_message, offset);
fprintf(stderr, PNG_STRING_NEWLINE);
}
} }
else else
#endif #endif
fprintf(stderr, "libpng error: %s\n", error_message); {
fprintf(stderr, "libpng error: %s", error_message);
fprintf(stderr, PNG_STRING_NEWLINE);
}
#endif #endif
#ifdef PNG_SETJMP_SUPPORTED #ifdef PNG_SETJMP_SUPPORTED
if (png_ptr)
{
# ifdef USE_FAR_KEYWORD # ifdef USE_FAR_KEYWORD
{ {
jmp_buf jmpbuf; jmp_buf jmpbuf;
png_memcpy(jmpbuf,png_ptr->jmpbuf,png_sizeof(jmp_buf)); png_memcpy(jmpbuf, png_ptr->jmpbuf, png_sizeof(jmp_buf));
longjmp(jmpbuf, 1); longjmp(jmpbuf, 1);
} }
# else # else
longjmp(png_ptr->jmpbuf, 1); longjmp(png_ptr->jmpbuf, 1);
# endif # endif
}
#else #else
/* make compiler happy */ ;
if (png_ptr)
PNG_ABORT(); PNG_ABORT();
#endif #endif
#ifdef PNG_NO_CONSOLE_IO #ifdef PNG_NO_CONSOLE_IO
/* make compiler happy */ ; error_message = error_message; /* Make compiler happy */
if (&error_message != NULL)
return;
#endif #endif
} }
#ifndef PNG_NO_WARNINGS
/* This function is called when there is a warning, but the library thinks /* This function is called when there is a warning, but the library thinks
* it can continue anyway. Replacement functions don't have to do anything * it can continue anyway. Replacement functions don't have to do anything
* here if you don't want them to. In the default configuration, png_ptr is * here if you don't want them to. In the default configuration, png_ptr is
@ -228,33 +287,38 @@ png_default_warning(png_structp png_ptr, png_const_charp warning_message)
{ {
int offset; int offset;
char warning_number[16]; char warning_number[16];
for (offset=0; offset<15; offset++) for (offset = 0; offset < 15; offset++)
{ {
warning_number[offset]=*(warning_message+offset+1); warning_number[offset] = warning_message[offset + 1];
if (*(warning_message+offset) == ' ') if (warning_message[offset] == ' ')
break; break;
} }
if((offset > 1) && (offset < 15)) if ((offset > 1) && (offset < 15))
{ {
warning_number[offset-1]='\0'; warning_number[offset + 1] = '\0';
fprintf(stderr, "libpng warning no. %s: %s\n", warning_number, fprintf(stderr, "libpng warning no. %s: %s",
warning_message+offset); warning_number, warning_message + offset);
fprintf(stderr, PNG_STRING_NEWLINE);
} }
else else
fprintf(stderr, "libpng warning: %s\n", warning_message); {
fprintf(stderr, "libpng warning: %s",
warning_message);
fprintf(stderr, PNG_STRING_NEWLINE);
}
} }
else else
# endif # endif
fprintf(stderr, "libpng warning: %s\n", warning_message); {
fprintf(stderr, "libpng warning: %s", warning_message);
fprintf(stderr, PNG_STRING_NEWLINE);
}
#else #else
/* make compiler happy */ ; warning_message = warning_message; /* Make compiler happy */
if (warning_message)
return;
#endif #endif
/* make compiler happy */ ; png_ptr = png_ptr; /* Make compiler happy */
if (png_ptr)
return;
} }
#endif /* PNG_NO_WARNINGS */
/* This function is called when the application wants to use another method /* This function is called when the application wants to use another method
* of handling errors and warnings. Note that the error function MUST NOT * of handling errors and warnings. Note that the error function MUST NOT
@ -265,6 +329,8 @@ void PNGAPI
png_set_error_fn(png_structp png_ptr, png_voidp error_ptr, png_set_error_fn(png_structp png_ptr, png_voidp error_ptr,
png_error_ptr error_fn, png_error_ptr warning_fn) png_error_ptr error_fn, png_error_ptr warning_fn)
{ {
if (png_ptr == NULL)
return;
png_ptr->error_ptr = error_ptr; png_ptr->error_ptr = error_ptr;
png_ptr->error_fn = error_fn; png_ptr->error_fn = error_fn;
png_ptr->warning_fn = warning_fn; png_ptr->warning_fn = warning_fn;
@ -278,6 +344,8 @@ png_set_error_fn(png_structp png_ptr, png_voidp error_ptr,
png_voidp PNGAPI png_voidp PNGAPI
png_get_error_ptr(png_structp png_ptr) png_get_error_ptr(png_structp png_ptr)
{ {
if (png_ptr == NULL)
return NULL;
return ((png_voidp)png_ptr->error_ptr); return ((png_voidp)png_ptr->error_ptr);
} }
@ -286,10 +354,11 @@ png_get_error_ptr(png_structp png_ptr)
void PNGAPI void PNGAPI
png_set_strip_error_numbers(png_structp png_ptr, png_uint_32 strip_mode) png_set_strip_error_numbers(png_structp png_ptr, png_uint_32 strip_mode)
{ {
if(png_ptr != NULL) if (png_ptr != NULL)
{ {
png_ptr->flags &= png_ptr->flags &=
((~(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode); ((~(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode);
} }
} }
#endif #endif
#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */

5408
3rdparty/wxWidgets/src/png/pnggccrd.c vendored
View File

File diff suppressed because it is too large Load Diff

291
3rdparty/wxWidgets/src/png/pngget.c vendored
View File

@ -1,21 +1,27 @@
/* pngget.c - retrieval of values from info struct /* pngget.c - retrieval of values from info struct
* *
* libpng 1.2.7 - September 12, 2004 * Last changed in libpng 1.2.37 [June 4, 2009]
* For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
*/ */
#define PNG_INTERNAL #define PNG_INTERNAL
#include "png.h" #include "png.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_valid(png_structp png_ptr, png_infop info_ptr, png_uint_32 flag) png_get_valid(png_structp png_ptr, png_infop info_ptr, png_uint_32 flag)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->valid & flag); return(info_ptr->valid & flag);
else else
return(0); return(0);
} }
@ -25,6 +31,7 @@ png_get_rowbytes(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->rowbytes); return(info_ptr->rowbytes);
else else
return(0); return(0);
} }
@ -35,20 +42,20 @@ png_get_rows(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
return(info_ptr->row_pointers); return(info_ptr->row_pointers);
else else
return(0); return(0);
} }
#endif #endif
#ifdef PNG_EASY_ACCESS_SUPPORTED #ifdef PNG_EASY_ACCESS_SUPPORTED
/* easy access to info, added in libpng-0.99 */ /* Easy access to info, added in libpng-0.99 */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_image_width(png_structp png_ptr, png_infop info_ptr) png_get_image_width(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
{
return info_ptr->width; return info_ptr->width;
}
return (0); return (0);
} }
@ -56,9 +63,8 @@ png_uint_32 PNGAPI
png_get_image_height(png_structp png_ptr, png_infop info_ptr) png_get_image_height(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
{
return info_ptr->height; return info_ptr->height;
}
return (0); return (0);
} }
@ -66,9 +72,8 @@ png_byte PNGAPI
png_get_bit_depth(png_structp png_ptr, png_infop info_ptr) png_get_bit_depth(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
{
return info_ptr->bit_depth; return info_ptr->bit_depth;
}
return (0); return (0);
} }
@ -76,9 +81,8 @@ png_byte PNGAPI
png_get_color_type(png_structp png_ptr, png_infop info_ptr) png_get_color_type(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
{
return info_ptr->color_type; return info_ptr->color_type;
}
return (0); return (0);
} }
@ -86,9 +90,8 @@ png_byte PNGAPI
png_get_filter_type(png_structp png_ptr, png_infop info_ptr) png_get_filter_type(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
{
return info_ptr->filter_type; return info_ptr->filter_type;
}
return (0); return (0);
} }
@ -96,9 +99,8 @@ png_byte PNGAPI
png_get_interlace_type(png_structp png_ptr, png_infop info_ptr) png_get_interlace_type(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
{
return info_ptr->interlace_type; return info_ptr->interlace_type;
}
return (0); return (0);
} }
@ -106,9 +108,8 @@ png_byte PNGAPI
png_get_compression_type(png_structp png_ptr, png_infop info_ptr) png_get_compression_type(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
{
return info_ptr->compression_type; return info_ptr->compression_type;
}
return (0); return (0);
} }
@ -119,10 +120,13 @@ png_get_x_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
#if defined(PNG_pHYs_SUPPORTED) #if defined(PNG_pHYs_SUPPORTED)
if (info_ptr->valid & PNG_INFO_pHYs) if (info_ptr->valid & PNG_INFO_pHYs)
{ {
png_debug1(1, "in %s retrieval function\n", "png_get_x_pixels_per_meter"); png_debug1(1, "in %s retrieval function", "png_get_x_pixels_per_meter");
if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER)
if (info_ptr->phys_unit_type != PNG_RESOLUTION_METER)
return (0); return (0);
else return (info_ptr->x_pixels_per_unit);
else
return (info_ptr->x_pixels_per_unit);
} }
#else #else
return (0); return (0);
@ -137,10 +141,13 @@ png_get_y_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
#if defined(PNG_pHYs_SUPPORTED) #if defined(PNG_pHYs_SUPPORTED)
if (info_ptr->valid & PNG_INFO_pHYs) if (info_ptr->valid & PNG_INFO_pHYs)
{ {
png_debug1(1, "in %s retrieval function\n", "png_get_y_pixels_per_meter"); png_debug1(1, "in %s retrieval function", "png_get_y_pixels_per_meter");
if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER)
if (info_ptr->phys_unit_type != PNG_RESOLUTION_METER)
return (0); return (0);
else return (info_ptr->y_pixels_per_unit);
else
return (info_ptr->y_pixels_per_unit);
} }
#else #else
return (0); return (0);
@ -155,11 +162,14 @@ png_get_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
#if defined(PNG_pHYs_SUPPORTED) #if defined(PNG_pHYs_SUPPORTED)
if (info_ptr->valid & PNG_INFO_pHYs) if (info_ptr->valid & PNG_INFO_pHYs)
{ {
png_debug1(1, "in %s retrieval function\n", "png_get_pixels_per_meter"); png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter");
if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER ||
if (info_ptr->phys_unit_type != PNG_RESOLUTION_METER ||
info_ptr->x_pixels_per_unit != info_ptr->y_pixels_per_unit) info_ptr->x_pixels_per_unit != info_ptr->y_pixels_per_unit)
return (0); return (0);
else return (info_ptr->x_pixels_per_unit);
else
return (info_ptr->x_pixels_per_unit);
} }
#else #else
return (0); return (0);
@ -173,9 +183,10 @@ png_get_pixel_aspect_ratio(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
#if defined(PNG_pHYs_SUPPORTED) #if defined(PNG_pHYs_SUPPORTED)
if (info_ptr->valid & PNG_INFO_pHYs) if (info_ptr->valid & PNG_INFO_pHYs)
{ {
png_debug1(1, "in %s retrieval function\n", "png_get_aspect_ratio"); png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio");
if (info_ptr->x_pixels_per_unit == 0) if (info_ptr->x_pixels_per_unit == 0)
return ((float)0.0); return ((float)0.0);
else else
@ -183,7 +194,7 @@ png_get_pixel_aspect_ratio(png_structp png_ptr, png_infop info_ptr)
/(float)info_ptr->x_pixels_per_unit)); /(float)info_ptr->x_pixels_per_unit));
} }
#else #else
return (0.0); return (0.0);
#endif #endif
return ((float)0.0); return ((float)0.0);
} }
@ -194,15 +205,19 @@ png_get_x_offset_microns(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
#if defined(PNG_oFFs_SUPPORTED) #if defined(PNG_oFFs_SUPPORTED)
if (info_ptr->valid & PNG_INFO_oFFs) if (info_ptr->valid & PNG_INFO_oFFs)
{ {
png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns"); png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns");
if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER)
if (info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER)
return (0); return (0);
else return (info_ptr->x_offset);
else
return (info_ptr->x_offset);
} }
#else #else
return (0); return (0);
#endif #endif
return (0); return (0);
} }
@ -211,13 +226,17 @@ png_int_32 PNGAPI
png_get_y_offset_microns(png_structp png_ptr, png_infop info_ptr) png_get_y_offset_microns(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
#if defined(PNG_oFFs_SUPPORTED) #if defined(PNG_oFFs_SUPPORTED)
if (info_ptr->valid & PNG_INFO_oFFs) if (info_ptr->valid & PNG_INFO_oFFs)
{ {
png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns"); png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns");
if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER)
if (info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER)
return (0); return (0);
else return (info_ptr->y_offset);
else
return (info_ptr->y_offset);
} }
#else #else
return (0); return (0);
@ -229,13 +248,17 @@ png_int_32 PNGAPI
png_get_x_offset_pixels(png_structp png_ptr, png_infop info_ptr) png_get_x_offset_pixels(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
#if defined(PNG_oFFs_SUPPORTED) #if defined(PNG_oFFs_SUPPORTED)
if (info_ptr->valid & PNG_INFO_oFFs) if (info_ptr->valid & PNG_INFO_oFFs)
{ {
png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns"); png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns");
if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL)
if (info_ptr->offset_unit_type != PNG_OFFSET_PIXEL)
return (0); return (0);
else return (info_ptr->x_offset);
else
return (info_ptr->x_offset);
} }
#else #else
return (0); return (0);
@ -247,13 +270,17 @@ png_int_32 PNGAPI
png_get_y_offset_pixels(png_structp png_ptr, png_infop info_ptr) png_get_y_offset_pixels(png_structp png_ptr, png_infop info_ptr)
{ {
if (png_ptr != NULL && info_ptr != NULL) if (png_ptr != NULL && info_ptr != NULL)
#if defined(PNG_oFFs_SUPPORTED) #if defined(PNG_oFFs_SUPPORTED)
if (info_ptr->valid & PNG_INFO_oFFs) if (info_ptr->valid & PNG_INFO_oFFs)
{ {
png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns"); png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns");
if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL)
if (info_ptr->offset_unit_type != PNG_OFFSET_PIXEL)
return (0); return (0);
else return (info_ptr->y_offset);
else
return (info_ptr->y_offset);
} }
#else #else
return (0); return (0);
@ -306,7 +333,7 @@ png_get_pHYs_dpi(png_structp png_ptr, png_infop info_ptr,
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs))
{ {
png_debug1(1, "in %s retrieval function\n", "pHYs"); png_debug1(1, "in %s retrieval function", "pHYs");
if (res_x != NULL) if (res_x != NULL)
{ {
*res_x = info_ptr->x_pixels_per_unit; *res_x = info_ptr->x_pixels_per_unit;
@ -321,7 +348,7 @@ png_get_pHYs_dpi(png_structp png_ptr, png_infop info_ptr,
{ {
*unit_type = (int)info_ptr->phys_unit_type; *unit_type = (int)info_ptr->phys_unit_type;
retval |= PNG_INFO_pHYs; retval |= PNG_INFO_pHYs;
if(*unit_type == 1) if (*unit_type == 1)
{ {
if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50); if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50);
if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50); if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50);
@ -363,7 +390,7 @@ png_get_bKGD(png_structp png_ptr, png_infop info_ptr,
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD)
&& background != NULL) && background != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "bKGD"); png_debug1(1, "in %s retrieval function", "bKGD");
*background = &(info_ptr->background); *background = &(info_ptr->background);
return (PNG_INFO_bKGD); return (PNG_INFO_bKGD);
} }
@ -380,7 +407,7 @@ png_get_cHRM(png_structp png_ptr, png_infop info_ptr,
{ {
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM))
{ {
png_debug1(1, "in %s retrieval function\n", "cHRM"); png_debug1(1, "in %s retrieval function", "cHRM");
if (white_x != NULL) if (white_x != NULL)
*white_x = (double)info_ptr->x_white; *white_x = (double)info_ptr->x_white;
if (white_y != NULL) if (white_y != NULL)
@ -411,7 +438,7 @@ png_get_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
{ {
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM))
{ {
png_debug1(1, "in %s retrieval function\n", "cHRM"); png_debug1(1, "in %s retrieval function", "cHRM");
if (white_x != NULL) if (white_x != NULL)
*white_x = info_ptr->int_x_white; *white_x = info_ptr->int_x_white;
if (white_y != NULL) if (white_y != NULL)
@ -443,7 +470,7 @@ png_get_gAMA(png_structp png_ptr, png_infop info_ptr, double *file_gamma)
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA)
&& file_gamma != NULL) && file_gamma != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "gAMA"); png_debug1(1, "in %s retrieval function", "gAMA");
*file_gamma = (double)info_ptr->gamma; *file_gamma = (double)info_ptr->gamma;
return (PNG_INFO_gAMA); return (PNG_INFO_gAMA);
} }
@ -458,7 +485,7 @@ png_get_gAMA_fixed(png_structp png_ptr, png_infop info_ptr,
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA)
&& int_file_gamma != NULL) && int_file_gamma != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "gAMA"); png_debug1(1, "in %s retrieval function", "gAMA");
*int_file_gamma = info_ptr->int_gamma; *int_file_gamma = info_ptr->int_gamma;
return (PNG_INFO_gAMA); return (PNG_INFO_gAMA);
} }
@ -474,7 +501,7 @@ png_get_sRGB(png_structp png_ptr, png_infop info_ptr, int *file_srgb_intent)
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB)
&& file_srgb_intent != NULL) && file_srgb_intent != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "sRGB"); png_debug1(1, "in %s retrieval function", "sRGB");
*file_srgb_intent = (int)info_ptr->srgb_intent; *file_srgb_intent = (int)info_ptr->srgb_intent;
return (PNG_INFO_sRGB); return (PNG_INFO_sRGB);
} }
@ -491,11 +518,12 @@ png_get_iCCP(png_structp png_ptr, png_infop info_ptr,
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP)
&& name != NULL && profile != NULL && proflen != NULL) && name != NULL && profile != NULL && proflen != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "iCCP"); png_debug1(1, "in %s retrieval function", "iCCP");
*name = info_ptr->iccp_name; *name = info_ptr->iccp_name;
*profile = info_ptr->iccp_profile; *profile = info_ptr->iccp_profile;
/* compression_type is a dummy so the API won't have to change /* Compression_type is a dummy so the API won't have to change
if we introduce multiple compression types later. */ * if we introduce multiple compression types later.
*/
*proflen = (int)info_ptr->iccp_proflen; *proflen = (int)info_ptr->iccp_proflen;
*compression_type = (int)info_ptr->iccp_compression; *compression_type = (int)info_ptr->iccp_compression;
return (PNG_INFO_iCCP); return (PNG_INFO_iCCP);
@ -510,8 +538,11 @@ png_get_sPLT(png_structp png_ptr, png_infop info_ptr,
png_sPLT_tpp spalettes) png_sPLT_tpp spalettes)
{ {
if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL) if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL)
{
*spalettes = info_ptr->splt_palettes; *spalettes = info_ptr->splt_palettes;
return ((png_uint_32)info_ptr->splt_palettes_num); return ((png_uint_32)info_ptr->splt_palettes_num);
}
return (0);
} }
#endif #endif
@ -522,7 +553,7 @@ png_get_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p *hist)
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST)
&& hist != NULL) && hist != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "hIST"); png_debug1(1, "in %s retrieval function", "hIST");
*hist = info_ptr->hist; *hist = info_ptr->hist;
return (PNG_INFO_hIST); return (PNG_INFO_hIST);
} }
@ -540,27 +571,34 @@ png_get_IHDR(png_structp png_ptr, png_infop info_ptr,
if (png_ptr != NULL && info_ptr != NULL && width != NULL && height != NULL && if (png_ptr != NULL && info_ptr != NULL && width != NULL && height != NULL &&
bit_depth != NULL && color_type != NULL) bit_depth != NULL && color_type != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "IHDR"); png_debug1(1, "in %s retrieval function", "IHDR");
*width = info_ptr->width; *width = info_ptr->width;
*height = info_ptr->height; *height = info_ptr->height;
*bit_depth = info_ptr->bit_depth; *bit_depth = info_ptr->bit_depth;
if (info_ptr->bit_depth < 1 || info_ptr->bit_depth > 16) if (info_ptr->bit_depth < 1 || info_ptr->bit_depth > 16)
png_error(png_ptr, "Invalid bit depth"); png_error(png_ptr, "Invalid bit depth");
*color_type = info_ptr->color_type; *color_type = info_ptr->color_type;
if (info_ptr->color_type > 6) if (info_ptr->color_type > 6)
png_error(png_ptr, "Invalid color type"); png_error(png_ptr, "Invalid color type");
if (compression_type != NULL) if (compression_type != NULL)
*compression_type = info_ptr->compression_type; *compression_type = info_ptr->compression_type;
if (filter_type != NULL) if (filter_type != NULL)
*filter_type = info_ptr->filter_type; *filter_type = info_ptr->filter_type;
if (interlace_type != NULL) if (interlace_type != NULL)
*interlace_type = info_ptr->interlace_type; *interlace_type = info_ptr->interlace_type;
/* check for potential overflow of rowbytes */ /* Check for potential overflow of rowbytes */
if (width == 0 || *width > PNG_UINT_31_MAX) if (*width == 0 || *width > PNG_UINT_31_MAX)
png_error(png_ptr, "Invalid image width"); png_error(png_ptr, "Invalid image width");
if (height == 0 || *height > PNG_UINT_31_MAX)
if (*height == 0 || *height > PNG_UINT_31_MAX)
png_error(png_ptr, "Invalid image height"); png_error(png_ptr, "Invalid image height");
if (info_ptr->width > (PNG_UINT_32_MAX if (info_ptr->width > (PNG_UINT_32_MAX
>> 3) /* 8-byte RGBA pixels */ >> 3) /* 8-byte RGBA pixels */
- 64 /* bigrowbuf hack */ - 64 /* bigrowbuf hack */
@ -571,6 +609,7 @@ png_get_IHDR(png_structp png_ptr, png_infop info_ptr,
png_warning(png_ptr, png_warning(png_ptr,
"Width too large for libpng to process image data."); "Width too large for libpng to process image data.");
} }
return (1); return (1);
} }
return (0); return (0);
@ -584,7 +623,7 @@ png_get_oFFs(png_structp png_ptr, png_infop info_ptr,
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)
&& offset_x != NULL && offset_y != NULL && unit_type != NULL) && offset_x != NULL && offset_y != NULL && unit_type != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "oFFs"); png_debug1(1, "in %s retrieval function", "oFFs");
*offset_x = info_ptr->x_offset; *offset_x = info_ptr->x_offset;
*offset_y = info_ptr->y_offset; *offset_y = info_ptr->y_offset;
*unit_type = (int)info_ptr->offset_unit_type; *unit_type = (int)info_ptr->offset_unit_type;
@ -601,10 +640,10 @@ png_get_pCAL(png_structp png_ptr, png_infop info_ptr,
png_charp *units, png_charpp *params) png_charp *units, png_charpp *params)
{ {
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL)
&& purpose != NULL && X0 != NULL && X1 != NULL && type != NULL && && purpose != NULL && X0 != NULL && X1 != NULL && type != NULL &&
nparams != NULL && units != NULL && params != NULL) nparams != NULL && units != NULL && params != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "pCAL"); png_debug1(1, "in %s retrieval function", "pCAL");
*purpose = info_ptr->pcal_purpose; *purpose = info_ptr->pcal_purpose;
*X0 = info_ptr->pcal_X0; *X0 = info_ptr->pcal_X0;
*X1 = info_ptr->pcal_X1; *X1 = info_ptr->pcal_X1;
@ -625,7 +664,7 @@ png_get_sCAL(png_structp png_ptr, png_infop info_ptr,
int *unit, double *width, double *height) int *unit, double *width, double *height)
{ {
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL)) (info_ptr->valid & PNG_INFO_sCAL))
{ {
*unit = info_ptr->scal_unit; *unit = info_ptr->scal_unit;
*width = info_ptr->scal_pixel_width; *width = info_ptr->scal_pixel_width;
@ -641,7 +680,7 @@ png_get_sCAL_s(png_structp png_ptr, png_infop info_ptr,
int *unit, png_charpp width, png_charpp height) int *unit, png_charpp width, png_charpp height)
{ {
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_sCAL)) (info_ptr->valid & PNG_INFO_sCAL))
{ {
*unit = info_ptr->scal_unit; *unit = info_ptr->scal_unit;
*width = info_ptr->scal_s_width; *width = info_ptr->scal_s_width;
@ -664,17 +703,20 @@ png_get_pHYs(png_structp png_ptr, png_infop info_ptr,
if (png_ptr != NULL && info_ptr != NULL && if (png_ptr != NULL && info_ptr != NULL &&
(info_ptr->valid & PNG_INFO_pHYs)) (info_ptr->valid & PNG_INFO_pHYs))
{ {
png_debug1(1, "in %s retrieval function\n", "pHYs"); png_debug1(1, "in %s retrieval function", "pHYs");
if (res_x != NULL) if (res_x != NULL)
{ {
*res_x = info_ptr->x_pixels_per_unit; *res_x = info_ptr->x_pixels_per_unit;
retval |= PNG_INFO_pHYs; retval |= PNG_INFO_pHYs;
} }
if (res_y != NULL) if (res_y != NULL)
{ {
*res_y = info_ptr->y_pixels_per_unit; *res_y = info_ptr->y_pixels_per_unit;
retval |= PNG_INFO_pHYs; retval |= PNG_INFO_pHYs;
} }
if (unit_type != NULL) if (unit_type != NULL)
{ {
*unit_type = (int)info_ptr->phys_unit_type; *unit_type = (int)info_ptr->phys_unit_type;
@ -692,10 +734,10 @@ png_get_PLTE(png_structp png_ptr, png_infop info_ptr, png_colorp *palette,
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_PLTE) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_PLTE)
&& palette != NULL) && palette != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "PLTE"); png_debug1(1, "in %s retrieval function", "PLTE");
*palette = info_ptr->palette; *palette = info_ptr->palette;
*num_palette = info_ptr->num_palette; *num_palette = info_ptr->num_palette;
png_debug1(3, "num_palette = %d\n", *num_palette); png_debug1(3, "num_palette = %d", *num_palette);
return (PNG_INFO_PLTE); return (PNG_INFO_PLTE);
} }
return (0); return (0);
@ -708,7 +750,7 @@ png_get_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit)
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT)
&& sig_bit != NULL) && sig_bit != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "sBIT"); png_debug1(1, "in %s retrieval function", "sBIT");
*sig_bit = &(info_ptr->sig_bit); *sig_bit = &(info_ptr->sig_bit);
return (PNG_INFO_sBIT); return (PNG_INFO_sBIT);
} }
@ -723,13 +765,16 @@ png_get_text(png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr,
{ {
if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0) if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0)
{ {
png_debug1(1, "in %s retrieval function\n", png_debug1(1, "in %s retrieval function",
(png_ptr->chunk_name[0] == '\0' ? "text" (png_ptr->chunk_name[0] == '\0' ? "text"
: (png_const_charp)png_ptr->chunk_name)); : (png_const_charp)png_ptr->chunk_name));
if (text_ptr != NULL) if (text_ptr != NULL)
*text_ptr = info_ptr->text; *text_ptr = info_ptr->text;
if (num_text != NULL) if (num_text != NULL)
*num_text = info_ptr->num_text; *num_text = info_ptr->num_text;
return ((png_uint_32)info_ptr->num_text); return ((png_uint_32)info_ptr->num_text);
} }
if (num_text != NULL) if (num_text != NULL)
@ -745,7 +790,7 @@ png_get_tIME(png_structp png_ptr, png_infop info_ptr, png_timep *mod_time)
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME)
&& mod_time != NULL) && mod_time != NULL)
{ {
png_debug1(1, "in %s retrieval function\n", "tIME"); png_debug1(1, "in %s retrieval function", "tIME");
*mod_time = &(info_ptr->mod_time); *mod_time = &(info_ptr->mod_time);
return (PNG_INFO_tIME); return (PNG_INFO_tIME);
} }
@ -761,7 +806,7 @@ png_get_tRNS(png_structp png_ptr, png_infop info_ptr,
png_uint_32 retval = 0; png_uint_32 retval = 0;
if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS))
{ {
png_debug1(1, "in %s retrieval function\n", "tRNS"); png_debug1(1, "in %s retrieval function", "tRNS");
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{ {
if (trans != NULL) if (trans != NULL)
@ -769,6 +814,7 @@ png_get_tRNS(png_structp png_ptr, png_infop info_ptr,
*trans = info_ptr->trans; *trans = info_ptr->trans;
retval |= PNG_INFO_tRNS; retval |= PNG_INFO_tRNS;
} }
if (trans_values != NULL) if (trans_values != NULL)
*trans_values = &(info_ptr->trans_values); *trans_values = &(info_ptr->trans_values);
} }
@ -779,10 +825,11 @@ png_get_tRNS(png_structp png_ptr, png_infop info_ptr,
*trans_values = &(info_ptr->trans_values); *trans_values = &(info_ptr->trans_values);
retval |= PNG_INFO_tRNS; retval |= PNG_INFO_tRNS;
} }
if(trans != NULL)
if (trans != NULL)
*trans = NULL; *trans = NULL;
} }
if(num_trans != NULL) if (num_trans != NULL)
{ {
*num_trans = info_ptr->num_trans; *num_trans = info_ptr->num_trans;
retval |= PNG_INFO_tRNS; retval |= PNG_INFO_tRNS;
@ -798,8 +845,11 @@ png_get_unknown_chunks(png_structp png_ptr, png_infop info_ptr,
png_unknown_chunkpp unknowns) png_unknown_chunkpp unknowns)
{ {
if (png_ptr != NULL && info_ptr != NULL && unknowns != NULL) if (png_ptr != NULL && info_ptr != NULL && unknowns != NULL)
{
*unknowns = info_ptr->unknown_chunks; *unknowns = info_ptr->unknown_chunks;
return ((png_uint_32)info_ptr->unknown_chunks_num); return ((png_uint_32)info_ptr->unknown_chunks_num);
}
return (0);
} }
#endif #endif
@ -827,98 +877,56 @@ png_get_compression_buffer_size(png_structp png_ptr)
} }
#endif #endif
#ifndef PNG_1_0_X
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED #ifdef PNG_ASSEMBLER_CODE_SUPPORTED
/* this function was added to libpng 1.2.0 and should exist by default */ #ifndef PNG_1_0_X
/* This function was added to libpng 1.2.0 and should exist by default */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_asm_flags (png_structp png_ptr) png_get_asm_flags (png_structp png_ptr)
{ {
return (png_uint_32)(png_ptr? png_ptr->asm_flags : 0L); /* Obsolete, to be removed from libpng-1.4.0 */
return (png_ptr? 0L: 0L);
} }
/* this function was added to libpng 1.2.0 and should exist by default */ /* This function was added to libpng 1.2.0 and should exist by default */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_asm_flagmask (int flag_select) png_get_asm_flagmask (int flag_select)
{ {
png_uint_32 settable_asm_flags = 0; /* Obsolete, to be removed from libpng-1.4.0 */
flag_select=flag_select;
if (flag_select & PNG_SELECT_READ) return 0L;
settable_asm_flags |=
PNG_ASM_FLAG_MMX_READ_COMBINE_ROW |
PNG_ASM_FLAG_MMX_READ_INTERLACE |
PNG_ASM_FLAG_MMX_READ_FILTER_SUB |
PNG_ASM_FLAG_MMX_READ_FILTER_UP |
PNG_ASM_FLAG_MMX_READ_FILTER_AVG |
PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ;
/* no non-MMX flags yet */
#if 0
/* GRR: no write-flags yet, either, but someday... */
if (flag_select & PNG_SELECT_WRITE)
settable_asm_flags |=
PNG_ASM_FLAG_MMX_WRITE_ [whatever] ;
#endif /* 0 */
return settable_asm_flags; /* _theoretically_ settable capabilities only */
} }
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
/* GRR: could add this: && defined(PNG_MMX_CODE_SUPPORTED) */ /* GRR: could add this: && defined(PNG_MMX_CODE_SUPPORTED) */
/* this function was added to libpng 1.2.0 */ /* This function was added to libpng 1.2.0 */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_mmx_flagmask (int flag_select, int *compilerID) png_get_mmx_flagmask (int flag_select, int *compilerID)
{ {
png_uint_32 settable_mmx_flags = 0; /* Obsolete, to be removed from libpng-1.4.0 */
flag_select=flag_select;
if (flag_select & PNG_SELECT_READ) *compilerID = -1; /* unknown (i.e., no asm/MMX code compiled) */
settable_mmx_flags |= return 0L;
PNG_ASM_FLAG_MMX_READ_COMBINE_ROW |
PNG_ASM_FLAG_MMX_READ_INTERLACE |
PNG_ASM_FLAG_MMX_READ_FILTER_SUB |
PNG_ASM_FLAG_MMX_READ_FILTER_UP |
PNG_ASM_FLAG_MMX_READ_FILTER_AVG |
PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ;
#if 0
/* GRR: no MMX write support yet, but someday... */
if (flag_select & PNG_SELECT_WRITE)
settable_mmx_flags |=
PNG_ASM_FLAG_MMX_WRITE_ [whatever] ;
#endif /* 0 */
if (compilerID != NULL) {
#ifdef PNG_USE_PNGVCRD
*compilerID = 1; /* MSVC */
#else
#ifdef PNG_USE_PNGGCCRD
*compilerID = 2; /* gcc/gas */
#else
*compilerID = -1; /* unknown (i.e., no asm/MMX code compiled) */
#endif
#endif
}
return settable_mmx_flags; /* _theoretically_ settable capabilities only */
} }
/* this function was added to libpng 1.2.0 */ /* This function was added to libpng 1.2.0 */
png_byte PNGAPI png_byte PNGAPI
png_get_mmx_bitdepth_threshold (png_structp png_ptr) png_get_mmx_bitdepth_threshold (png_structp png_ptr)
{ {
return (png_byte)(png_ptr? png_ptr->mmx_bitdepth_threshold : 0); /* Obsolete, to be removed from libpng-1.4.0 */
return (png_ptr? 0: 0);
} }
/* this function was added to libpng 1.2.0 */ /* This function was added to libpng 1.2.0 */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_mmx_rowbytes_threshold (png_structp png_ptr) png_get_mmx_rowbytes_threshold (png_structp png_ptr)
{ {
return (png_uint_32)(png_ptr? png_ptr->mmx_rowbytes_threshold : 0L); /* Obsolete, to be removed from libpng-1.4.0 */
return (png_ptr? 0L: 0L);
} }
#endif /* ?PNG_1_0_X */
#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */ #endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED #ifdef PNG_SET_USER_LIMITS_SUPPORTED
/* these functions were added to libpng 1.2.6 */ /* These functions were added to libpng 1.2.6 */
png_uint_32 PNGAPI png_uint_32 PNGAPI
png_get_user_width_max (png_structp png_ptr) png_get_user_width_max (png_structp png_ptr)
{ {
@ -931,4 +939,5 @@ png_get_user_height_max (png_structp png_ptr)
} }
#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ #endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */
#endif /* ?PNG_1_0_X */
#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */

131
3rdparty/wxWidgets/src/png/pngmem.c vendored
View File

@ -1,12 +1,15 @@
/* pngmem.c - stub functions for memory allocation /* pngmem.c - stub functions for memory allocation
* *
* libpng version 1.2.7 - September 12, 2004 * Last changed in libpng 1.2.37 [June 4, 2009]
* For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* *
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* This file provides a location for all memory allocation. Users who * This file provides a location for all memory allocation. Users who
* need special memory handling are expected to supply replacement * need special memory handling are expected to supply replacement
* functions for png_malloc() and png_free(), and to use * functions for png_malloc() and png_free(), and to use
@ -16,10 +19,11 @@
#define PNG_INTERNAL #define PNG_INTERNAL
#include "png.h" #include "png.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
/* Borland DOS special memory handler */ /* Borland DOS special memory handler */
#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__) #if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__)
/* if you change this, be sure to change the one in png.h also */ /* If you change this, be sure to change the one in png.h also */
/* Allocate memory for a png_struct. The malloc and memset can be replaced /* Allocate memory for a png_struct. The malloc and memset can be replaced
by a single call to calloc() if this is thought to improve performance. */ by a single call to calloc() if this is thought to improve performance. */
@ -39,14 +43,14 @@ png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)
png_voidp struct_ptr; png_voidp struct_ptr;
if (type == PNG_STRUCT_INFO) if (type == PNG_STRUCT_INFO)
size = png_sizeof(png_info); size = png_sizeof(png_info);
else if (type == PNG_STRUCT_PNG) else if (type == PNG_STRUCT_PNG)
size = png_sizeof(png_struct); size = png_sizeof(png_struct);
else else
return (png_get_copyright(NULL)); return (png_get_copyright(NULL));
#ifdef PNG_USER_MEM_SUPPORTED #ifdef PNG_USER_MEM_SUPPORTED
if(malloc_fn != NULL) if (malloc_fn != NULL)
{ {
png_struct dummy_struct; png_struct dummy_struct;
png_structp png_ptr = &dummy_struct; png_structp png_ptr = &dummy_struct;
@ -55,7 +59,7 @@ png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)
} }
else else
#endif /* PNG_USER_MEM_SUPPORTED */ #endif /* PNG_USER_MEM_SUPPORTED */
struct_ptr = (png_voidp)farmalloc(size); struct_ptr = (png_voidp)farmalloc(size);
if (struct_ptr != NULL) if (struct_ptr != NULL)
png_memset(struct_ptr, 0, size); png_memset(struct_ptr, 0, size);
return (struct_ptr); return (struct_ptr);
@ -78,7 +82,7 @@ png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn,
if (struct_ptr != NULL) if (struct_ptr != NULL)
{ {
#ifdef PNG_USER_MEM_SUPPORTED #ifdef PNG_USER_MEM_SUPPORTED
if(free_fn != NULL) if (free_fn != NULL)
{ {
png_struct dummy_struct; png_struct dummy_struct;
png_structp png_ptr = &dummy_struct; png_structp png_ptr = &dummy_struct;
@ -120,10 +124,10 @@ png_malloc(png_structp png_ptr, png_uint_32 size)
return (NULL); return (NULL);
#ifdef PNG_USER_MEM_SUPPORTED #ifdef PNG_USER_MEM_SUPPORTED
if(png_ptr->malloc_fn != NULL) if (png_ptr->malloc_fn != NULL)
ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size)); ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size));
else else
ret = (png_malloc_default(png_ptr, size)); ret = (png_malloc_default(png_ptr, size));
if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Out of memory!"); png_error(png_ptr, "Out of memory!");
return (ret); return (ret);
@ -135,6 +139,9 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
png_voidp ret; png_voidp ret;
#endif /* PNG_USER_MEM_SUPPORTED */ #endif /* PNG_USER_MEM_SUPPORTED */
if (png_ptr == NULL || size == 0)
return (NULL);
#ifdef PNG_MAX_MALLOC_64K #ifdef PNG_MAX_MALLOC_64K
if (size > (png_uint_32)65536L) if (size > (png_uint_32)65536L)
{ {
@ -145,12 +152,12 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
#endif #endif
if (size != (size_t)size) if (size != (size_t)size)
ret = NULL; ret = NULL;
else if (size == (png_uint_32)65536L) else if (size == (png_uint_32)65536L)
{ {
if (png_ptr->offset_table == NULL) if (png_ptr->offset_table == NULL)
{ {
/* try to see if we need to do any of this fancy stuff */ /* Try to see if we need to do any of this fancy stuff */
ret = farmalloc(size); ret = farmalloc(size);
if (ret == NULL || ((png_size_t)ret & 0xffff)) if (ret == NULL || ((png_size_t)ret & 0xffff))
{ {
@ -166,7 +173,7 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
ret = NULL; ret = NULL;
} }
if(png_ptr->zlib_window_bits > 14) if (png_ptr->zlib_window_bits > 14)
num_blocks = (int)(1 << (png_ptr->zlib_window_bits - 14)); num_blocks = (int)(1 << (png_ptr->zlib_window_bits - 14));
else else
num_blocks = 1; num_blocks = 1;
@ -205,7 +212,7 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
png_ptr->offset_table = table; png_ptr->offset_table = table;
png_ptr->offset_table_ptr = farmalloc(num_blocks * png_ptr->offset_table_ptr = farmalloc(num_blocks *
png_sizeof (png_bytep)); png_sizeof(png_bytep));
if (png_ptr->offset_table_ptr == NULL) if (png_ptr->offset_table_ptr == NULL)
{ {
@ -265,9 +272,10 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
return (ret); return (ret);
} }
/* free a pointer allocated by png_malloc(). In the default /* Free a pointer allocated by png_malloc(). In the default
configuration, png_ptr is not used, but is passed in case it * configuration, png_ptr is not used, but is passed in case it
is needed. If ptr is NULL, return without taking any action. */ * is needed. If ptr is NULL, return without taking any action.
*/
void PNGAPI void PNGAPI
png_free(png_structp png_ptr, png_voidp ptr) png_free(png_structp png_ptr, png_voidp ptr)
{ {
@ -280,7 +288,8 @@ png_free(png_structp png_ptr, png_voidp ptr)
(*(png_ptr->free_fn))(png_ptr, ptr); (*(png_ptr->free_fn))(png_ptr, ptr);
return; return;
} }
else png_free_default(png_ptr, ptr); else
png_free_default(png_ptr, ptr);
} }
void PNGAPI void PNGAPI
@ -288,6 +297,9 @@ png_free_default(png_structp png_ptr, png_voidp ptr)
{ {
#endif /* PNG_USER_MEM_SUPPORTED */ #endif /* PNG_USER_MEM_SUPPORTED */
if (png_ptr == NULL || ptr == NULL)
return;
if (png_ptr->offset_table != NULL) if (png_ptr->offset_table != NULL)
{ {
int i; int i;
@ -346,7 +358,7 @@ png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)
return (NULL); return (NULL);
#ifdef PNG_USER_MEM_SUPPORTED #ifdef PNG_USER_MEM_SUPPORTED
if(malloc_fn != NULL) if (malloc_fn != NULL)
{ {
png_struct dummy_struct; png_struct dummy_struct;
png_structp png_ptr = &dummy_struct; png_structp png_ptr = &dummy_struct;
@ -362,7 +374,7 @@ png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)
struct_ptr = (png_voidp)farmalloc(size); struct_ptr = (png_voidp)farmalloc(size);
#else #else
# if defined(_MSC_VER) && defined(MAXSEG_64K) # if defined(_MSC_VER) && defined(MAXSEG_64K)
struct_ptr = (png_voidp)halloc(size,1); struct_ptr = (png_voidp)halloc(size, 1);
# else # else
struct_ptr = (png_voidp)malloc(size); struct_ptr = (png_voidp)malloc(size);
# endif # endif
@ -391,7 +403,7 @@ png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn,
if (struct_ptr != NULL) if (struct_ptr != NULL)
{ {
#ifdef PNG_USER_MEM_SUPPORTED #ifdef PNG_USER_MEM_SUPPORTED
if(free_fn != NULL) if (free_fn != NULL)
{ {
png_struct dummy_struct; png_struct dummy_struct;
png_structp png_ptr = &dummy_struct; png_structp png_ptr = &dummy_struct;
@ -413,10 +425,12 @@ png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn,
} }
/* Allocate memory. For reasonable files, size should never exceed /* Allocate memory. For reasonable files, size should never exceed
64K. However, zlib may allocate more then 64K if you don't tell * 64K. However, zlib may allocate more then 64K if you don't tell
it not to. See zconf.h and png.h for more information. zlib does * it not to. See zconf.h and png.h for more information. zlib does
need to allocate exactly 64K, so whatever you call here must * need to allocate exactly 64K, so whatever you call here must
have the ability to do that. */ * have the ability to do that.
*/
png_voidp PNGAPI png_voidp PNGAPI
png_malloc(png_structp png_ptr, png_uint_32 size) png_malloc(png_structp png_ptr, png_uint_32 size)
@ -427,10 +441,10 @@ png_malloc(png_structp png_ptr, png_uint_32 size)
if (png_ptr == NULL || size == 0) if (png_ptr == NULL || size == 0)
return (NULL); return (NULL);
if(png_ptr->malloc_fn != NULL) if (png_ptr->malloc_fn != NULL)
ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size)); ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size));
else else
ret = (png_malloc_default(png_ptr, size)); ret = (png_malloc_default(png_ptr, size));
if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Out of Memory!"); png_error(png_ptr, "Out of Memory!");
return (ret); return (ret);
@ -449,7 +463,7 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
if (size > (png_uint_32)65536L) if (size > (png_uint_32)65536L)
{ {
#ifndef PNG_USER_MEM_SUPPORTED #ifndef PNG_USER_MEM_SUPPORTED
if(png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0)
png_error(png_ptr, "Cannot Allocate > 64K"); png_error(png_ptr, "Cannot Allocate > 64K");
else else
#endif #endif
@ -457,23 +471,23 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
} }
#endif #endif
/* Check for overflow */ /* Check for overflow */
#if defined(__TURBOC__) && !defined(__FLAT__) #if defined(__TURBOC__) && !defined(__FLAT__)
if (size != (unsigned long)size) if (size != (unsigned long)size)
ret = NULL; ret = NULL;
else else
ret = farmalloc(size); ret = farmalloc(size);
#else #else
# if defined(_MSC_VER) && defined(MAXSEG_64K) # if defined(_MSC_VER) && defined(MAXSEG_64K)
if (size != (unsigned long)size) if (size != (unsigned long)size)
ret = NULL; ret = NULL;
else else
ret = halloc(size, 1); ret = halloc(size, 1);
# else # else
if (size != (size_t)size) if (size != (size_t)size)
ret = NULL; ret = NULL;
else else
ret = malloc((size_t)size); ret = malloc((size_t)size);
# endif # endif
#endif #endif
@ -486,7 +500,8 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
} }
/* Free a pointer allocated by png_malloc(). If ptr is NULL, return /* Free a pointer allocated by png_malloc(). If ptr is NULL, return
without taking any action. */ * without taking any action.
*/
void PNGAPI void PNGAPI
png_free(png_structp png_ptr, png_voidp ptr) png_free(png_structp png_ptr, png_voidp ptr)
{ {
@ -499,7 +514,8 @@ png_free(png_structp png_ptr, png_voidp ptr)
(*(png_ptr->free_fn))(png_ptr, ptr); (*(png_ptr->free_fn))(png_ptr, ptr);
return; return;
} }
else png_free_default(png_ptr, ptr); else
png_free_default(png_ptr, ptr);
} }
void PNGAPI void PNGAPI
png_free_default(png_structp png_ptr, png_voidp ptr) png_free_default(png_structp png_ptr, png_voidp ptr)
@ -534,8 +550,11 @@ png_voidp PNGAPI
png_malloc_warn(png_structp png_ptr, png_uint_32 size) png_malloc_warn(png_structp png_ptr, png_uint_32 size)
{ {
png_voidp ptr; png_voidp ptr;
png_uint_32 save_flags=png_ptr->flags; png_uint_32 save_flags;
if (png_ptr == NULL)
return (NULL);
save_flags = png_ptr->flags;
png_ptr->flags|=PNG_FLAG_MALLOC_NULL_MEM_OK; png_ptr->flags|=PNG_FLAG_MALLOC_NULL_MEM_OK;
ptr = (png_voidp)png_malloc((png_structp)png_ptr, size); ptr = (png_voidp)png_malloc((png_structp)png_ptr, size);
png_ptr->flags=save_flags; png_ptr->flags=save_flags;
@ -551,7 +570,7 @@ png_memcpy_check (png_structp png_ptr, png_voidp s1, png_voidp s2,
size = (png_size_t)length; size = (png_size_t)length;
if ((png_uint_32)size != length) if ((png_uint_32)size != length)
png_error(png_ptr,"Overflow in png_memcpy_check."); png_error(png_ptr, "Overflow in png_memcpy_check.");
return(png_memcpy (s1, s2, size)); return(png_memcpy (s1, s2, size));
} }
@ -564,7 +583,7 @@ png_memset_check (png_structp png_ptr, png_voidp s1, int value,
size = (png_size_t)length; size = (png_size_t)length;
if ((png_uint_32)size != length) if ((png_uint_32)size != length)
png_error(png_ptr,"Overflow in png_memset_check."); png_error(png_ptr, "Overflow in png_memset_check.");
return (png_memset (s1, value, size)); return (png_memset (s1, value, size));
@ -578,9 +597,12 @@ void PNGAPI
png_set_mem_fn(png_structp png_ptr, png_voidp mem_ptr, png_malloc_ptr png_set_mem_fn(png_structp png_ptr, png_voidp mem_ptr, png_malloc_ptr
malloc_fn, png_free_ptr free_fn) malloc_fn, png_free_ptr free_fn)
{ {
png_ptr->mem_ptr = mem_ptr; if (png_ptr != NULL)
png_ptr->malloc_fn = malloc_fn; {
png_ptr->free_fn = free_fn; png_ptr->mem_ptr = mem_ptr;
png_ptr->malloc_fn = malloc_fn;
png_ptr->free_fn = free_fn;
}
} }
/* This function returns a pointer to the mem_ptr associated with the user /* This function returns a pointer to the mem_ptr associated with the user
@ -590,6 +612,9 @@ png_set_mem_fn(png_structp png_ptr, png_voidp mem_ptr, png_malloc_ptr
png_voidp PNGAPI png_voidp PNGAPI
png_get_mem_ptr(png_structp png_ptr) png_get_mem_ptr(png_structp png_ptr)
{ {
if (png_ptr == NULL)
return (NULL);
return ((png_voidp)png_ptr->mem_ptr); return ((png_voidp)png_ptr->mem_ptr);
} }
#endif /* PNG_USER_MEM_SUPPORTED */ #endif /* PNG_USER_MEM_SUPPORTED */
#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */

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68
3rdparty/wxWidgets/src/png/pngrio.c vendored
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@ -1,12 +1,15 @@
/* pngrio.c - functions for data input /* pngrio.c - functions for data input
* *
* libpng 1.2.7 - September 12, 2004 * Last changed in libpng 1.2.37 [June 4, 2009]
* For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* *
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* This file provides a location for all input. Users who need * This file provides a location for all input. Users who need
* special handling are expected to write a function that has the same * special handling are expected to write a function that has the same
* arguments as this and performs a similar function, but that possibly * arguments as this and performs a similar function, but that possibly
@ -17,16 +20,18 @@
#define PNG_INTERNAL #define PNG_INTERNAL
#include "png.h" #include "png.h"
#if defined(PNG_READ_SUPPORTED)
/* Read the data from whatever input you are using. The default routine /* Read the data from whatever input you are using. The default routine
reads from a file pointer. Note that this routine sometimes gets called * reads from a file pointer. Note that this routine sometimes gets called
with very small lengths, so you should implement some kind of simple * with very small lengths, so you should implement some kind of simple
buffering if you are using unbuffered reads. This should never be asked * buffering if you are using unbuffered reads. This should never be asked
to read more then 64K on a 16 bit machine. */ * to read more then 64K on a 16 bit machine.
*/
void /* PRIVATE */ void /* PRIVATE */
png_read_data(png_structp png_ptr, png_bytep data, png_size_t length) png_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{ {
png_debug1(4,"reading %d bytes\n", (int)length); png_debug1(4, "reading %d bytes", (int)length);
if (png_ptr->read_data_fn != NULL) if (png_ptr->read_data_fn != NULL)
(*(png_ptr->read_data_fn))(png_ptr, data, length); (*(png_ptr->read_data_fn))(png_ptr, data, length);
else else
@ -35,15 +40,18 @@ png_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
#if !defined(PNG_NO_STDIO) #if !defined(PNG_NO_STDIO)
/* This is the function that does the actual reading of data. If you are /* This is the function that does the actual reading of data. If you are
not reading from a standard C stream, you should create a replacement * not reading from a standard C stream, you should create a replacement
read_data function and use it at run time with png_set_read_fn(), rather * read_data function and use it at run time with png_set_read_fn(), rather
than changing the library. */ * than changing the library.
*/
#ifndef USE_FAR_KEYWORD #ifndef USE_FAR_KEYWORD
void PNGAPI void PNGAPI
png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{ {
png_size_t check; png_size_t check;
if (png_ptr == NULL)
return;
/* fread() returns 0 on error, so it is OK to store this in a png_size_t /* fread() returns 0 on error, so it is OK to store this in a png_size_t
* instead of an int, which is what fread() actually returns. * instead of an int, which is what fread() actually returns.
*/ */
@ -59,7 +67,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
png_error(png_ptr, "Read Error"); png_error(png_ptr, "Read Error");
} }
#else #else
/* this is the model-independent version. Since the standard I/O library /* This is the model-independent version. Since the standard I/O library
can't handle far buffers in the medium and small models, we have to copy can't handle far buffers in the medium and small models, we have to copy
the data. the data.
*/ */
@ -67,13 +75,15 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
#define NEAR_BUF_SIZE 1024 #define NEAR_BUF_SIZE 1024
#define MIN(a,b) (a <= b ? a : b) #define MIN(a,b) (a <= b ? a : b)
static void /* PRIVATE */ static void PNGAPI
png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{ {
int check; int check;
png_byte *n_data; png_byte *n_data;
png_FILE_p io_ptr; png_FILE_p io_ptr;
if (png_ptr == NULL)
return;
/* Check if data really is near. If so, use usual code. */ /* Check if data really is near. If so, use usual code. */
n_data = (png_byte *)CVT_PTR_NOCHECK(data); n_data = (png_byte *)CVT_PTR_NOCHECK(data);
io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
@ -102,7 +112,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
err = fread(buf, (png_size_t)1, read, io_ptr); err = fread(buf, (png_size_t)1, read, io_ptr);
#endif #endif
png_memcpy(data, buf, read); /* copy far buffer to near buffer */ png_memcpy(data, buf, read); /* copy far buffer to near buffer */
if(err != read) if (err != read)
break; break;
else else
check += err; check += err;
@ -118,22 +128,27 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
#endif #endif
/* This function allows the application to supply a new input function /* This function allows the application to supply a new input function
for libpng if standard C streams aren't being used. * for libpng if standard C streams aren't being used.
*
This function takes as its arguments: * This function takes as its arguments:
png_ptr - pointer to a png input data structure * png_ptr - pointer to a png input data structure
io_ptr - pointer to user supplied structure containing info about * io_ptr - pointer to user supplied structure containing info about
the input functions. May be NULL. * the input functions. May be NULL.
read_data_fn - pointer to a new input function that takes as its * read_data_fn - pointer to a new input function that takes as its
arguments a pointer to a png_struct, a pointer to * arguments a pointer to a png_struct, a pointer to
a location where input data can be stored, and a 32-bit * a location where input data can be stored, and a 32-bit
unsigned int that is the number of bytes to be read. * unsigned int that is the number of bytes to be read.
To exit and output any fatal error messages the new write * To exit and output any fatal error messages the new write
function should call png_error(png_ptr, "Error msg"). */ * function should call png_error(png_ptr, "Error msg").
* May be NULL, in which case libpng's default function will
* be used.
*/
void PNGAPI void PNGAPI
png_set_read_fn(png_structp png_ptr, png_voidp io_ptr, png_set_read_fn(png_structp png_ptr, png_voidp io_ptr,
png_rw_ptr read_data_fn) png_rw_ptr read_data_fn)
{ {
if (png_ptr == NULL)
return;
png_ptr->io_ptr = io_ptr; png_ptr->io_ptr = io_ptr;
#if !defined(PNG_NO_STDIO) #if !defined(PNG_NO_STDIO)
@ -159,3 +174,4 @@ png_set_read_fn(png_structp png_ptr, png_voidp io_ptr,
png_ptr->output_flush_fn = NULL; png_ptr->output_flush_fn = NULL;
#endif #endif
} }
#endif /* PNG_READ_SUPPORTED */

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1008
3rdparty/wxWidgets/src/png/pngrutil.c vendored
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830
3rdparty/wxWidgets/src/png/pngset.c vendored
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638
3rdparty/wxWidgets/src/png/pngtest.c vendored
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121
3rdparty/wxWidgets/src/png/pngtrans.c vendored
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@ -1,43 +1,53 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers) /* pngtrans.c - transforms the data in a row (used by both readers and writers)
* *
* libpng 1.2.7 - September 12, 2004 * Last changed in libpng 1.2.36 [May 14, 2009]
* For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/ */
#define PNG_INTERNAL #define PNG_INTERNAL
#include "png.h" #include "png.h"
#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED)
#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) #if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
/* turn on BGR-to-RGB mapping */ /* Turn on BGR-to-RGB mapping */
void PNGAPI void PNGAPI
png_set_bgr(png_structp png_ptr) png_set_bgr(png_structp png_ptr)
{ {
png_debug(1, "in png_set_bgr\n"); png_debug(1, "in png_set_bgr");
if (png_ptr == NULL)
return;
png_ptr->transformations |= PNG_BGR; png_ptr->transformations |= PNG_BGR;
} }
#endif #endif
#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) #if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
/* turn on 16 bit byte swapping */ /* Turn on 16 bit byte swapping */
void PNGAPI void PNGAPI
png_set_swap(png_structp png_ptr) png_set_swap(png_structp png_ptr)
{ {
png_debug(1, "in png_set_swap\n"); png_debug(1, "in png_set_swap");
if (png_ptr == NULL)
return;
if (png_ptr->bit_depth == 16) if (png_ptr->bit_depth == 16)
png_ptr->transformations |= PNG_SWAP_BYTES; png_ptr->transformations |= PNG_SWAP_BYTES;
} }
#endif #endif
#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) #if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
/* turn on pixel packing */ /* Turn on pixel packing */
void PNGAPI void PNGAPI
png_set_packing(png_structp png_ptr) png_set_packing(png_structp png_ptr)
{ {
png_debug(1, "in png_set_packing\n"); png_debug(1, "in png_set_packing");
if (png_ptr == NULL)
return;
if (png_ptr->bit_depth < 8) if (png_ptr->bit_depth < 8)
{ {
png_ptr->transformations |= PNG_PACK; png_ptr->transformations |= PNG_PACK;
@ -47,11 +57,13 @@ png_set_packing(png_structp png_ptr)
#endif #endif
#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) #if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED)
/* turn on packed pixel swapping */ /* Turn on packed pixel swapping */
void PNGAPI void PNGAPI
png_set_packswap(png_structp png_ptr) png_set_packswap(png_structp png_ptr)
{ {
png_debug(1, "in png_set_packswap\n"); png_debug(1, "in png_set_packswap");
if (png_ptr == NULL)
return;
if (png_ptr->bit_depth < 8) if (png_ptr->bit_depth < 8)
png_ptr->transformations |= PNG_PACKSWAP; png_ptr->transformations |= PNG_PACKSWAP;
} }
@ -61,7 +73,9 @@ png_set_packswap(png_structp png_ptr)
void PNGAPI void PNGAPI
png_set_shift(png_structp png_ptr, png_color_8p true_bits) png_set_shift(png_structp png_ptr, png_color_8p true_bits)
{ {
png_debug(1, "in png_set_shift\n"); png_debug(1, "in png_set_shift");
if (png_ptr == NULL)
return;
png_ptr->transformations |= PNG_SHIFT; png_ptr->transformations |= PNG_SHIFT;
png_ptr->shift = *true_bits; png_ptr->shift = *true_bits;
} }
@ -72,8 +86,8 @@ png_set_shift(png_structp png_ptr, png_color_8p true_bits)
int PNGAPI int PNGAPI
png_set_interlace_handling(png_structp png_ptr) png_set_interlace_handling(png_structp png_ptr)
{ {
png_debug(1, "in png_set_interlace handling\n"); png_debug(1, "in png_set_interlace handling");
if (png_ptr->interlaced) if (png_ptr && png_ptr->interlaced)
{ {
png_ptr->transformations |= PNG_INTERLACE; png_ptr->transformations |= PNG_INTERLACE;
return (7); return (7);
@ -92,7 +106,9 @@ png_set_interlace_handling(png_structp png_ptr)
void PNGAPI void PNGAPI
png_set_filler(png_structp png_ptr, png_uint_32 filler, int filler_loc) png_set_filler(png_structp png_ptr, png_uint_32 filler, int filler_loc)
{ {
png_debug(1, "in png_set_filler\n"); png_debug(1, "in png_set_filler");
if (png_ptr == NULL)
return;
png_ptr->transformations |= PNG_FILLER; png_ptr->transformations |= PNG_FILLER;
png_ptr->filler = (png_byte)filler; png_ptr->filler = (png_byte)filler;
if (filler_loc == PNG_FILLER_AFTER) if (filler_loc == PNG_FILLER_AFTER)
@ -124,7 +140,9 @@ png_set_filler(png_structp png_ptr, png_uint_32 filler, int filler_loc)
void PNGAPI void PNGAPI
png_set_add_alpha(png_structp png_ptr, png_uint_32 filler, int filler_loc) png_set_add_alpha(png_structp png_ptr, png_uint_32 filler, int filler_loc)
{ {
png_debug(1, "in png_set_add_alpha\n"); png_debug(1, "in png_set_add_alpha");
if (png_ptr == NULL)
return;
png_set_filler(png_ptr, filler, filler_loc); png_set_filler(png_ptr, filler, filler_loc);
png_ptr->transformations |= PNG_ADD_ALPHA; png_ptr->transformations |= PNG_ADD_ALPHA;
} }
@ -137,7 +155,9 @@ png_set_add_alpha(png_structp png_ptr, png_uint_32 filler, int filler_loc)
void PNGAPI void PNGAPI
png_set_swap_alpha(png_structp png_ptr) png_set_swap_alpha(png_structp png_ptr)
{ {
png_debug(1, "in png_set_swap_alpha\n"); png_debug(1, "in png_set_swap_alpha");
if (png_ptr == NULL)
return;
png_ptr->transformations |= PNG_SWAP_ALPHA; png_ptr->transformations |= PNG_SWAP_ALPHA;
} }
#endif #endif
@ -147,7 +167,9 @@ png_set_swap_alpha(png_structp png_ptr)
void PNGAPI void PNGAPI
png_set_invert_alpha(png_structp png_ptr) png_set_invert_alpha(png_structp png_ptr)
{ {
png_debug(1, "in png_set_invert_alpha\n"); png_debug(1, "in png_set_invert_alpha");
if (png_ptr == NULL)
return;
png_ptr->transformations |= PNG_INVERT_ALPHA; png_ptr->transformations |= PNG_INVERT_ALPHA;
} }
#endif #endif
@ -156,15 +178,17 @@ png_set_invert_alpha(png_structp png_ptr)
void PNGAPI void PNGAPI
png_set_invert_mono(png_structp png_ptr) png_set_invert_mono(png_structp png_ptr)
{ {
png_debug(1, "in png_set_invert_mono\n"); png_debug(1, "in png_set_invert_mono");
if (png_ptr == NULL)
return;
png_ptr->transformations |= PNG_INVERT_MONO; png_ptr->transformations |= PNG_INVERT_MONO;
} }
/* invert monochrome grayscale data */ /* Invert monochrome grayscale data */
void /* PRIVATE */ void /* PRIVATE */
png_do_invert(png_row_infop row_info, png_bytep row) png_do_invert(png_row_infop row_info, png_bytep row)
{ {
png_debug(1, "in png_do_invert\n"); png_debug(1, "in png_do_invert");
/* This test removed from libpng version 1.0.13 and 1.2.0: /* This test removed from libpng version 1.0.13 and 1.2.0:
* if (row_info->bit_depth == 1 && * if (row_info->bit_depth == 1 &&
*/ */
@ -215,11 +239,11 @@ png_do_invert(png_row_infop row_info, png_bytep row)
#endif #endif
#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) #if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
/* swaps byte order on 16 bit depth images */ /* Swaps byte order on 16 bit depth images */
void /* PRIVATE */ void /* PRIVATE */
png_do_swap(png_row_infop row_info, png_bytep row) png_do_swap(png_row_infop row_info, png_bytep row)
{ {
png_debug(1, "in png_do_swap\n"); png_debug(1, "in png_do_swap");
if ( if (
#if defined(PNG_USELESS_TESTS_SUPPORTED) #if defined(PNG_USELESS_TESTS_SUPPORTED)
row != NULL && row_info != NULL && row != NULL && row_info != NULL &&
@ -241,7 +265,7 @@ png_do_swap(png_row_infop row_info, png_bytep row)
#endif #endif
#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) #if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED)
static png_byte onebppswaptable[256] = { static PNG_CONST png_byte onebppswaptable[256] = {
0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0,
0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8,
@ -276,7 +300,7 @@ static png_byte onebppswaptable[256] = {
0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
}; };
static png_byte twobppswaptable[256] = { static PNG_CONST png_byte twobppswaptable[256] = {
0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0, 0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0,
0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0, 0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0,
0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4, 0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4,
@ -311,7 +335,7 @@ static png_byte twobppswaptable[256] = {
0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF 0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF
}; };
static png_byte fourbppswaptable[256] = { static PNG_CONST png_byte fourbppswaptable[256] = {
0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70,
0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0, 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0,
0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71, 0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71,
@ -346,11 +370,11 @@ static png_byte fourbppswaptable[256] = {
0x8F, 0x9F, 0xAF, 0xBF, 0xCF, 0xDF, 0xEF, 0xFF 0x8F, 0x9F, 0xAF, 0xBF, 0xCF, 0xDF, 0xEF, 0xFF
}; };
/* swaps pixel packing order within bytes */ /* Swaps pixel packing order within bytes */
void /* PRIVATE */ void /* PRIVATE */
png_do_packswap(png_row_infop row_info, png_bytep row) png_do_packswap(png_row_infop row_info, png_bytep row)
{ {
png_debug(1, "in png_do_packswap\n"); png_debug(1, "in png_do_packswap");
if ( if (
#if defined(PNG_USELESS_TESTS_SUPPORTED) #if defined(PNG_USELESS_TESTS_SUPPORTED)
row != NULL && row_info != NULL && row != NULL && row_info != NULL &&
@ -362,11 +386,11 @@ png_do_packswap(png_row_infop row_info, png_bytep row)
end = row + row_info->rowbytes; end = row + row_info->rowbytes;
if (row_info->bit_depth == 1) if (row_info->bit_depth == 1)
table = onebppswaptable; table = (png_bytep)onebppswaptable;
else if (row_info->bit_depth == 2) else if (row_info->bit_depth == 2)
table = twobppswaptable; table = (png_bytep)twobppswaptable;
else if (row_info->bit_depth == 4) else if (row_info->bit_depth == 4)
table = fourbppswaptable; table = (png_bytep)fourbppswaptable;
else else
return; return;
@ -378,11 +402,11 @@ png_do_packswap(png_row_infop row_info, png_bytep row)
#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ #if defined(PNG_WRITE_FILLER_SUPPORTED) || \
defined(PNG_READ_STRIP_ALPHA_SUPPORTED) defined(PNG_READ_STRIP_ALPHA_SUPPORTED)
/* remove filler or alpha byte(s) */ /* Remove filler or alpha byte(s) */
void /* PRIVATE */ void /* PRIVATE */
png_do_strip_filler(png_row_infop row_info, png_bytep row, png_uint_32 flags) png_do_strip_filler(png_row_infop row_info, png_bytep row, png_uint_32 flags)
{ {
png_debug(1, "in png_do_strip_filler\n"); png_debug(1, "in png_do_strip_filler");
#if defined(PNG_USELESS_TESTS_SUPPORTED) #if defined(PNG_USELESS_TESTS_SUPPORTED)
if (row != NULL && row_info != NULL) if (row != NULL && row_info != NULL)
#endif #endif
@ -392,8 +416,10 @@ png_do_strip_filler(png_row_infop row_info, png_bytep row, png_uint_32 flags)
png_uint_32 row_width=row_info->width; png_uint_32 row_width=row_info->width;
png_uint_32 i; png_uint_32 i;
if (row_info->color_type == PNG_COLOR_TYPE_RGB && if ((row_info->color_type == PNG_COLOR_TYPE_RGB ||
row_info->channels == 4) (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA &&
(flags & PNG_FLAG_STRIP_ALPHA))) &&
row_info->channels == 4)
{ {
if (row_info->bit_depth == 8) if (row_info->bit_depth == 8)
{ {
@ -471,7 +497,9 @@ png_do_strip_filler(png_row_infop row_info, png_bytep row, png_uint_32 flags)
} }
row_info->channels = 3; row_info->channels = 3;
} }
else if (row_info->color_type == PNG_COLOR_TYPE_GRAY && else if ((row_info->color_type == PNG_COLOR_TYPE_GRAY ||
(row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA &&
(flags & PNG_FLAG_STRIP_ALPHA))) &&
row_info->channels == 2) row_info->channels == 2)
{ {
if (row_info->bit_depth == 8) if (row_info->bit_depth == 8)
@ -525,16 +553,18 @@ png_do_strip_filler(png_row_infop row_info, png_bytep row, png_uint_32 flags)
} }
row_info->channels = 1; row_info->channels = 1;
} }
if (flags & PNG_FLAG_STRIP_ALPHA)
row_info->color_type &= ~PNG_COLOR_MASK_ALPHA;
} }
} }
#endif #endif
#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) #if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
/* swaps red and blue bytes within a pixel */ /* Swaps red and blue bytes within a pixel */
void /* PRIVATE */ void /* PRIVATE */
png_do_bgr(png_row_infop row_info, png_bytep row) png_do_bgr(png_row_infop row_info, png_bytep row)
{ {
png_debug(1, "in png_do_bgr\n"); png_debug(1, "in png_do_bgr");
if ( if (
#if defined(PNG_USELESS_TESTS_SUPPORTED) #if defined(PNG_USELESS_TESTS_SUPPORTED)
row != NULL && row_info != NULL && row != NULL && row_info != NULL &&
@ -607,19 +637,21 @@ png_do_bgr(png_row_infop row_info, png_bytep row)
#endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */ #endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_LEGACY_SUPPORTED) || \
defined(PNG_LEGACY_SUPPORTED) defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
void PNGAPI void PNGAPI
png_set_user_transform_info(png_structp png_ptr, png_voidp png_set_user_transform_info(png_structp png_ptr, png_voidp
user_transform_ptr, int user_transform_depth, int user_transform_channels) user_transform_ptr, int user_transform_depth, int user_transform_channels)
{ {
png_debug(1, "in png_set_user_transform_info\n"); png_debug(1, "in png_set_user_transform_info");
if (png_ptr == NULL)
return;
#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) #if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
png_ptr->user_transform_ptr = user_transform_ptr; png_ptr->user_transform_ptr = user_transform_ptr;
png_ptr->user_transform_depth = (png_byte)user_transform_depth; png_ptr->user_transform_depth = (png_byte)user_transform_depth;
png_ptr->user_transform_channels = (png_byte)user_transform_channels; png_ptr->user_transform_channels = (png_byte)user_transform_channels;
#else #else
if(user_transform_ptr || user_transform_depth || user_transform_channels) if (user_transform_ptr || user_transform_depth || user_transform_channels)
png_warning(png_ptr, png_warning(png_ptr,
"This version of libpng does not support user transform info"); "This version of libpng does not support user transform info");
#endif #endif
@ -634,11 +666,12 @@ png_set_user_transform_info(png_structp png_ptr, png_voidp
png_voidp PNGAPI png_voidp PNGAPI
png_get_user_transform_ptr(png_structp png_ptr) png_get_user_transform_ptr(png_structp png_ptr)
{ {
if (png_ptr == NULL)
return (NULL);
#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) #if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
return ((png_voidp)png_ptr->user_transform_ptr); return ((png_voidp)png_ptr->user_transform_ptr);
#else #else
if(png_ptr)
return (NULL);
return (NULL); return (NULL);
#endif #endif
} }
#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */

3903
3rdparty/wxWidgets/src/png/pngvcrd.c vendored
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127
3rdparty/wxWidgets/src/png/pngwio.c vendored
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@ -1,12 +1,15 @@
/* pngwio.c - functions for data output /* pngwio.c - functions for data output
* *
* libpng 1.2.7 - September 12, 2004 * Last changed in libpng 1.2.37 [June 4, 2009]
* For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* *
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* This file provides a location for all output. Users who need * This file provides a location for all output. Users who need
* special handling are expected to write functions that have the same * special handling are expected to write functions that have the same
* arguments as these and perform similar functions, but that possibly * arguments as these and perform similar functions, but that possibly
@ -20,10 +23,11 @@
#ifdef PNG_WRITE_SUPPORTED #ifdef PNG_WRITE_SUPPORTED
/* Write the data to whatever output you are using. The default routine /* Write the data to whatever output you are using. The default routine
writes to a file pointer. Note that this routine sometimes gets called * writes to a file pointer. Note that this routine sometimes gets called
with very small lengths, so you should implement some kind of simple * with very small lengths, so you should implement some kind of simple
buffering if you are using unbuffered writes. This should never be asked * buffering if you are using unbuffered writes. This should never be asked
to write more than 64K on a 16 bit machine. */ * to write more than 64K on a 16 bit machine.
*/
void /* PRIVATE */ void /* PRIVATE */
png_write_data(png_structp png_ptr, png_bytep data, png_size_t length) png_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
@ -36,15 +40,18 @@ png_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
#if !defined(PNG_NO_STDIO) #if !defined(PNG_NO_STDIO)
/* This is the function that does the actual writing of data. If you are /* This is the function that does the actual writing of data. If you are
not writing to a standard C stream, you should create a replacement * not writing to a standard C stream, you should create a replacement
write_data function and use it at run time with png_set_write_fn(), rather * write_data function and use it at run time with png_set_write_fn(), rather
than changing the library. */ * than changing the library.
*/
#ifndef USE_FAR_KEYWORD #ifndef USE_FAR_KEYWORD
void PNGAPI void PNGAPI
png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
{ {
png_uint_32 check; png_uint_32 check;
if (png_ptr == NULL)
return;
#if defined(_WIN32_WCE) #if defined(_WIN32_WCE)
if ( !WriteFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) ) if ( !WriteFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) )
check = 0; check = 0;
@ -55,10 +62,10 @@ png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
png_error(png_ptr, "Write Error"); png_error(png_ptr, "Write Error");
} }
#else #else
/* this is the model-independent version. Since the standard I/O library /* This is the model-independent version. Since the standard I/O library
can't handle far buffers in the medium and small models, we have to copy * can't handle far buffers in the medium and small models, we have to copy
the data. * the data.
*/ */
#define NEAR_BUF_SIZE 1024 #define NEAR_BUF_SIZE 1024
#define MIN(a,b) (a <= b ? a : b) #define MIN(a,b) (a <= b ? a : b)
@ -70,6 +77,8 @@ png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */ png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */
png_FILE_p io_ptr; png_FILE_p io_ptr;
if (png_ptr == NULL)
return;
/* Check if data really is near. If so, use usual code. */ /* Check if data really is near. If so, use usual code. */
near_data = (png_byte *)CVT_PTR_NOCHECK(data); near_data = (png_byte *)CVT_PTR_NOCHECK(data);
io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
@ -91,7 +100,7 @@ png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
do do
{ {
written = MIN(NEAR_BUF_SIZE, remaining); written = MIN(NEAR_BUF_SIZE, remaining);
png_memcpy(buf, data, written); /* copy far buffer to near buffer */ png_memcpy(buf, data, written); /* Copy far buffer to near buffer */
#if defined(_WIN32_WCE) #if defined(_WIN32_WCE)
if ( !WriteFile(io_ptr, buf, written, &err, NULL) ) if ( !WriteFile(io_ptr, buf, written, &err, NULL) )
err = 0; err = 0;
@ -100,8 +109,10 @@ png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
#endif #endif
if (err != written) if (err != written)
break; break;
else else
check += err; check += err;
data += written; data += written;
remaining -= written; remaining -= written;
} }
@ -115,8 +126,9 @@ png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
#endif #endif
/* This function is called to output any data pending writing (normally /* This function is called to output any data pending writing (normally
to disk). After png_flush is called, there should be no data pending * to disk). After png_flush is called, there should be no data pending
writing in any buffers. */ * writing in any buffers.
*/
#if defined(PNG_WRITE_FLUSH_SUPPORTED) #if defined(PNG_WRITE_FLUSH_SUPPORTED)
void /* PRIVATE */ void /* PRIVATE */
png_flush(png_structp png_ptr) png_flush(png_structp png_ptr)
@ -131,45 +143,59 @@ png_default_flush(png_structp png_ptr)
{ {
#if !defined(_WIN32_WCE) #if !defined(_WIN32_WCE)
png_FILE_p io_ptr; png_FILE_p io_ptr;
#endif
if (png_ptr == NULL)
return;
#if !defined(_WIN32_WCE)
io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr)); io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr));
if (io_ptr != NULL) fflush(io_ptr);
fflush(io_ptr);
#endif #endif
} }
#endif #endif
#endif #endif
/* This function allows the application to supply new output functions for /* This function allows the application to supply new output functions for
libpng if standard C streams aren't being used. * libpng if standard C streams aren't being used.
*
This function takes as its arguments: * This function takes as its arguments:
png_ptr - pointer to a png output data structure * png_ptr - pointer to a png output data structure
io_ptr - pointer to user supplied structure containing info about * io_ptr - pointer to user supplied structure containing info about
the output functions. May be NULL. * the output functions. May be NULL.
write_data_fn - pointer to a new output function that takes as its * write_data_fn - pointer to a new output function that takes as its
arguments a pointer to a png_struct, a pointer to * arguments a pointer to a png_struct, a pointer to
data to be written, and a 32-bit unsigned int that is * data to be written, and a 32-bit unsigned int that is
the number of bytes to be written. The new write * the number of bytes to be written. The new write
function should call png_error(png_ptr, "Error msg") * function should call png_error(png_ptr, "Error msg")
to exit and output any fatal error messages. * to exit and output any fatal error messages. May be
flush_data_fn - pointer to a new flush function that takes as its * NULL, in which case libpng's default function will
arguments a pointer to a png_struct. After a call to * be used.
the flush function, there should be no data in any buffers * flush_data_fn - pointer to a new flush function that takes as its
or pending transmission. If the output method doesn't do * arguments a pointer to a png_struct. After a call to
any buffering of ouput, a function prototype must still be * the flush function, there should be no data in any buffers
supplied although it doesn't have to do anything. If * or pending transmission. If the output method doesn't do
PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile * any buffering of ouput, a function prototype must still be
time, output_flush_fn will be ignored, although it must be * supplied although it doesn't have to do anything. If
supplied for compatibility. */ * PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile
* time, output_flush_fn will be ignored, although it must be
* supplied for compatibility. May be NULL, in which case
* libpng's default function will be used, if
* PNG_WRITE_FLUSH_SUPPORTED is defined. This is not
* a good idea if io_ptr does not point to a standard
* *FILE structure.
*/
void PNGAPI void PNGAPI
png_set_write_fn(png_structp png_ptr, png_voidp io_ptr, png_set_write_fn(png_structp png_ptr, png_voidp io_ptr,
png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn) png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)
{ {
if (png_ptr == NULL)
return;
png_ptr->io_ptr = io_ptr; png_ptr->io_ptr = io_ptr;
#if !defined(PNG_NO_STDIO) #if !defined(PNG_NO_STDIO)
if (write_data_fn != NULL) if (write_data_fn != NULL)
png_ptr->write_data_fn = write_data_fn; png_ptr->write_data_fn = write_data_fn;
else else
png_ptr->write_data_fn = png_default_write_data; png_ptr->write_data_fn = png_default_write_data;
#else #else
@ -180,6 +206,7 @@ png_set_write_fn(png_structp png_ptr, png_voidp io_ptr,
#if !defined(PNG_NO_STDIO) #if !defined(PNG_NO_STDIO)
if (output_flush_fn != NULL) if (output_flush_fn != NULL)
png_ptr->output_flush_fn = output_flush_fn; png_ptr->output_flush_fn = output_flush_fn;
else else
png_ptr->output_flush_fn = png_default_flush; png_ptr->output_flush_fn = png_default_flush;
#else #else
@ -200,27 +227,31 @@ png_set_write_fn(png_structp png_ptr, png_voidp io_ptr,
#if defined(USE_FAR_KEYWORD) #if defined(USE_FAR_KEYWORD)
#if defined(_MSC_VER) #if defined(_MSC_VER)
void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check) void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
{ {
void *near_ptr; void *near_ptr;
void FAR *far_ptr; void FAR *far_ptr;
FP_OFF(near_ptr) = FP_OFF(ptr); FP_OFF(near_ptr) = FP_OFF(ptr);
far_ptr = (void FAR *)near_ptr; far_ptr = (void FAR *)near_ptr;
if(check != 0)
if(FP_SEG(ptr) != FP_SEG(far_ptr)) if (check != 0)
png_error(png_ptr,"segment lost in conversion"); if (FP_SEG(ptr) != FP_SEG(far_ptr))
png_error(png_ptr, "segment lost in conversion");
return(near_ptr); return(near_ptr);
} }
# else # else
void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check) void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
{ {
void *near_ptr; void *near_ptr;
void FAR *far_ptr; void FAR *far_ptr;
near_ptr = (void FAR *)ptr; near_ptr = (void FAR *)ptr;
far_ptr = (void FAR *)near_ptr; far_ptr = (void FAR *)near_ptr;
if(check != 0)
if(far_ptr != ptr) if (check != 0)
png_error(png_ptr,"segment lost in conversion"); if (far_ptr != ptr)
png_error(png_ptr, "segment lost in conversion");
return(near_ptr); return(near_ptr);
} }
# endif # endif

539
3rdparty/wxWidgets/src/png/pngwrite.c vendored
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File diff suppressed because it is too large Load Diff

50
3rdparty/wxWidgets/src/png/pngwtran.c vendored
View File

@ -1,11 +1,14 @@
/* pngwtran.c - transforms the data in a row for PNG writers /* pngwtran.c - transforms the data in a row for PNG writers
* *
* libpng version 1.2.7 - September 12, 2004 * Last changed in libpng 1.2.37 [June 4, 2009]
* For conditions of distribution and use, see copyright notice in png.h * Copyright (c) 1998-2009 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*/ */
#define PNG_INTERNAL #define PNG_INTERNAL
@ -18,15 +21,15 @@
void /* PRIVATE */ void /* PRIVATE */
png_do_write_transformations(png_structp png_ptr) png_do_write_transformations(png_structp png_ptr)
{ {
png_debug(1, "in png_do_write_transformations\n"); png_debug(1, "in png_do_write_transformations");
if (png_ptr == NULL) if (png_ptr == NULL)
return; return;
#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
if (png_ptr->transformations & PNG_USER_TRANSFORM) if (png_ptr->transformations & PNG_USER_TRANSFORM)
if(png_ptr->write_user_transform_fn != NULL) if (png_ptr->write_user_transform_fn != NULL)
(*(png_ptr->write_user_transform_fn)) /* user write transform function */ (*(png_ptr->write_user_transform_fn)) /* User write transform function */
(png_ptr, /* png_ptr */ (png_ptr, /* png_ptr */
&(png_ptr->row_info), /* row_info: */ &(png_ptr->row_info), /* row_info: */
/* png_uint_32 width; width of row */ /* png_uint_32 width; width of row */
@ -60,14 +63,14 @@ png_do_write_transformations(png_structp png_ptr)
png_do_shift(&(png_ptr->row_info), png_ptr->row_buf + 1, png_do_shift(&(png_ptr->row_info), png_ptr->row_buf + 1,
&(png_ptr->shift)); &(png_ptr->shift));
#endif #endif
#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
if (png_ptr->transformations & PNG_INVERT_ALPHA)
png_do_write_invert_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1);
#endif
#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) #if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED)
if (png_ptr->transformations & PNG_SWAP_ALPHA) if (png_ptr->transformations & PNG_SWAP_ALPHA)
png_do_write_swap_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1); png_do_write_swap_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1);
#endif #endif
#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
if (png_ptr->transformations & PNG_INVERT_ALPHA)
png_do_write_invert_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1);
#endif
#if defined(PNG_WRITE_BGR_SUPPORTED) #if defined(PNG_WRITE_BGR_SUPPORTED)
if (png_ptr->transformations & PNG_BGR) if (png_ptr->transformations & PNG_BGR)
png_do_bgr(&(png_ptr->row_info), png_ptr->row_buf + 1); png_do_bgr(&(png_ptr->row_info), png_ptr->row_buf + 1);
@ -86,7 +89,7 @@ png_do_write_transformations(png_structp png_ptr)
void /* PRIVATE */ void /* PRIVATE */
png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth) png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth)
{ {
png_debug(1, "in png_do_pack\n"); png_debug(1, "in png_do_pack");
if (row_info->bit_depth == 8 && if (row_info->bit_depth == 8 &&
#if defined(PNG_USELESS_TESTS_SUPPORTED) #if defined(PNG_USELESS_TESTS_SUPPORTED)
row != NULL && row_info != NULL && row != NULL && row_info != NULL &&
@ -212,7 +215,7 @@ png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth)
void /* PRIVATE */ void /* PRIVATE */
png_do_shift(png_row_infop row_info, png_bytep row, png_color_8p bit_depth) png_do_shift(png_row_infop row_info, png_bytep row, png_color_8p bit_depth)
{ {
png_debug(1, "in png_do_shift\n"); png_debug(1, "in png_do_shift");
#if defined(PNG_USELESS_TESTS_SUPPORTED) #if defined(PNG_USELESS_TESTS_SUPPORTED)
if (row != NULL && row_info != NULL && if (row != NULL && row_info != NULL &&
#else #else
@ -248,7 +251,7 @@ png_do_shift(png_row_infop row_info, png_bytep row, png_color_8p bit_depth)
channels++; channels++;
} }
/* with low row depths, could only be grayscale, so one channel */ /* With low row depths, could only be grayscale, so one channel */
if (row_info->bit_depth < 8) if (row_info->bit_depth < 8)
{ {
png_bytep bp = row; png_bytep bp = row;
@ -336,7 +339,7 @@ png_do_shift(png_row_infop row_info, png_bytep row, png_color_8p bit_depth)
void /* PRIVATE */ void /* PRIVATE */
png_do_write_swap_alpha(png_row_infop row_info, png_bytep row) png_do_write_swap_alpha(png_row_infop row_info, png_bytep row)
{ {
png_debug(1, "in png_do_write_swap_alpha\n"); png_debug(1, "in png_do_write_swap_alpha");
#if defined(PNG_USELESS_TESTS_SUPPORTED) #if defined(PNG_USELESS_TESTS_SUPPORTED)
if (row != NULL && row_info != NULL) if (row != NULL && row_info != NULL)
#endif #endif
@ -424,7 +427,7 @@ png_do_write_swap_alpha(png_row_infop row_info, png_bytep row)
void /* PRIVATE */ void /* PRIVATE */
png_do_write_invert_alpha(png_row_infop row_info, png_bytep row) png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
{ {
png_debug(1, "in png_do_write_invert_alpha\n"); png_debug(1, "in png_do_write_invert_alpha");
#if defined(PNG_USELESS_TESTS_SUPPORTED) #if defined(PNG_USELESS_TESTS_SUPPORTED)
if (row != NULL && row_info != NULL) if (row != NULL && row_info != NULL)
#endif #endif
@ -439,9 +442,12 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
png_uint_32 row_width = row_info->width; png_uint_32 row_width = row_info->width;
for (i = 0, sp = dp = row; i < row_width; i++) for (i = 0, sp = dp = row; i < row_width; i++)
{ {
/* Does nothing
*(dp++) = *(sp++); *(dp++) = *(sp++);
*(dp++) = *(sp++); *(dp++) = *(sp++);
*(dp++) = *(sp++); *(dp++) = *(sp++);
*/
sp+=3; dp = sp;
*(dp++) = (png_byte)(255 - *(sp++)); *(dp++) = (png_byte)(255 - *(sp++));
} }
} }
@ -454,12 +460,15 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
for (i = 0, sp = dp = row; i < row_width; i++) for (i = 0, sp = dp = row; i < row_width; i++)
{ {
/* Does nothing
*(dp++) = *(sp++); *(dp++) = *(sp++);
*(dp++) = *(sp++); *(dp++) = *(sp++);
*(dp++) = *(sp++); *(dp++) = *(sp++);
*(dp++) = *(sp++); *(dp++) = *(sp++);
*(dp++) = *(sp++); *(dp++) = *(sp++);
*(dp++) = *(sp++); *(dp++) = *(sp++);
*/
sp+=6; dp = sp;
*(dp++) = (png_byte)(255 - *(sp++)); *(dp++) = (png_byte)(255 - *(sp++));
*(dp++) = (png_byte)(255 - *(sp++)); *(dp++) = (png_byte)(255 - *(sp++));
} }
@ -489,8 +498,11 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
for (i = 0, sp = dp = row; i < row_width; i++) for (i = 0, sp = dp = row; i < row_width; i++)
{ {
/* Does nothing
*(dp++) = *(sp++); *(dp++) = *(sp++);
*(dp++) = *(sp++); *(dp++) = *(sp++);
*/
sp+=2; dp = sp;
*(dp++) = (png_byte)(255 - *(sp++)); *(dp++) = (png_byte)(255 - *(sp++));
*(dp++) = (png_byte)(255 - *(sp++)); *(dp++) = (png_byte)(255 - *(sp++));
} }
@ -501,11 +513,11 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
#endif #endif
#if defined(PNG_MNG_FEATURES_SUPPORTED) #if defined(PNG_MNG_FEATURES_SUPPORTED)
/* undoes intrapixel differencing */ /* Undoes intrapixel differencing */
void /* PRIVATE */ void /* PRIVATE */
png_do_write_intrapixel(png_row_infop row_info, png_bytep row) png_do_write_intrapixel(png_row_infop row_info, png_bytep row)
{ {
png_debug(1, "in png_do_write_intrapixel\n"); png_debug(1, "in png_do_write_intrapixel");
if ( if (
#if defined(PNG_USELESS_TESTS_SUPPORTED) #if defined(PNG_USELESS_TESTS_SUPPORTED)
row != NULL && row_info != NULL && row != NULL && row_info != NULL &&
@ -549,8 +561,8 @@ png_do_write_intrapixel(png_row_infop row_info, png_bytep row)
png_uint_32 s0 = (*(rp ) << 8) | *(rp+1); png_uint_32 s0 = (*(rp ) << 8) | *(rp+1);
png_uint_32 s1 = (*(rp+2) << 8) | *(rp+3); png_uint_32 s1 = (*(rp+2) << 8) | *(rp+3);
png_uint_32 s2 = (*(rp+4) << 8) | *(rp+5); png_uint_32 s2 = (*(rp+4) << 8) | *(rp+5);
png_uint_32 red = (png_uint_32)((s0-s1) & 0xffffL); png_uint_32 red = (png_uint_32)((s0 - s1) & 0xffffL);
png_uint_32 blue = (png_uint_32)((s2-s1) & 0xffffL); png_uint_32 blue = (png_uint_32)((s2 - s1) & 0xffffL);
*(rp ) = (png_byte)((red >> 8) & 0xff); *(rp ) = (png_byte)((red >> 8) & 0xff);
*(rp+1) = (png_byte)(red & 0xff); *(rp+1) = (png_byte)(red & 0xff);
*(rp+4) = (png_byte)((blue >> 8) & 0xff); *(rp+4) = (png_byte)((blue >> 8) & 0xff);

1008
3rdparty/wxWidgets/src/png/pngwutil.c vendored
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