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Imported from libpng-1.2.0beta2.tar

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This commit is contained in:
Glenn Randers-Pehrson 2001-05-07 14:52:45 -05:00
parent 1fd5fb33c2
commit 3097f618f2
53 changed files with 413 additions and 283 deletions
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3
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.2.0beta1 - May 6, 2001
Libpng 1.2.0beta2 - May 7, 2001
This is a public release of libpng, intended for use in production codes.
@ -13,6 +13,7 @@ Changes since the last public release (1.0.11):
by default.
Added runtime selection of MMX features.
Added png_set_strip_error_numbers function and related macros.
Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu

3
CHANGES
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@ -940,6 +940,9 @@ version 1.2.0beta1 [May 6, 2001]
by default.
Added runtime selection of MMX features.
Added png_set_strip_error_numbers function and related macros.
version 1.2.0beta2 [May 7, 2001]
Finished merging 1.2.0beta1 with version 1.0.9
Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu

15
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.2.0beta1 - May 6, 2001
Installing libpng version 1.2.0beta2 - May 7, 2001
Before installing libpng, you must first install zlib. zlib
can usually be found wherever you got libpng. zlib can be
@ -10,7 +10,7 @@ zlib.h and zconf.h include files that correspond to the
version of zlib that's installed.
You can rename the directories that you downloaded (they
might be called "libpng-1.2.0beta1" or "lpng109" and "zlib-1.1.3"
might be called "libpng-1.2.0beta2" or "lpng109" and "zlib-1.1.3"
or "zlib113") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this:
@ -28,6 +28,7 @@ Your directory structure should look like this:
pngsuite
visupng
projects
beos
borland
msvc
wince
@ -59,8 +60,8 @@ The files that are presently available in the scripts directory
include
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.2.0beta1)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng.so.2.1.2.0beta1,
makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.2.0beta2)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng.so.2.1.2.0beta2,
uses assembler code tuned for Intel MMX platform)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
@ -69,15 +70,17 @@ include
makefile.aix => AIX makefile
makefile.cygwin => Cygwin/gcc makefile
makefile.dec => DEC Alpha UNIX makefile
makefile.hpgcc => HPUX makefile using gcc
makefile.hpux => HPUX (10.20 and 11.00) makefile
makefile.ibmc => IBM C/C++ version 3.x for Win32 and OS/2 (static)
makefile.intel => Intel C/C++ version 4.0 and later
libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later
makefile.macosx => MACOS X Makefile
makefile.netbsd => NetBSD/cc makefile, uses PNGGCCRD
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.2.0beta1)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.2.0beta2)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.2.0beta1)
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.2.0beta2)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.mips => MIPS makefile
makefile.acorn => Acorn makefile

4
LICENSE
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@ -8,7 +8,7 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
If you modify libpng you may insert additional notices immediately following
this sentence.
libpng versions 1.0.7, July 1, 2000, through 1.2.0beta1, May 6, 2001, are
libpng versions 1.0.7, July 1, 2000, through 1.2.0beta2, May 7, 2001, are
Copyright (c) 2000 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
@ -99,4 +99,4 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
randeg@alum.rpi.edu
May 6, 2001
May 7, 2001

13
README
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@ -1,4 +1,4 @@
README for libpng 1.2.0beta1 - May 6, 2001 (shared library 2.1)
README for libpng 1.2.0beta2 - May 7, 2001 (shared library 2.1)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
@ -172,6 +172,7 @@ Files in this distribution:
pngsuite => Test images
visupng => Contains a MSVC workspace for VisualPng
projects => Contains project files and workspaces for building DLL
beos => Contains a Beos workspace for building libpng
borland => Contains a Borland workspace for building libpng
and zlib
msvc => Contains a Microsoft Visual C++ (MSVC) workspace
@ -182,9 +183,9 @@ Files in this distribution:
descrip.mms => VMS makefile for MMS or MMK
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.linux => Linux/ELF makefile
(gcc, creates libpng.so.2.1.2.0beta1)
(gcc, creates libpng.so.2.1.2.0beta2)
makefile.gcmmx => Linux/ELF makefile (gcc, creates
libpng.so.2.1.2.0beta1, uses assembler code
libpng.so.2.1.2.0beta2, uses assembler code
tuned for Intel MMX platform)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
@ -193,16 +194,18 @@ Files in this distribution:
makefile.aix => AIX makefile
makefile.cygwin => Cygwin/gcc makefile
makefile.dec => DEC Alpha UNIX makefile
makefile.hpgcc => HPUX makefile using gcc
makefile.hpux => HPUX (10.20 and 11.00) makefile
makefile.ibmc => IBM C/C++ version 3.x for Win32 and OS/2 (static)
makefile.intel => Intel C/C++ version 4.0 and later
libpng.icc => Project file, IBM VisualAge/C++ 4.0 or later
makefile.macosx => MACOS X Makefile
makefile.netbsd => NetBSD/cc makefile, uses PNGGCCRD
makefile.sgi => Silicon Graphics IRIX (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.2.0beta1)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.2.0beta2)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng.so.2.1.2.0beta1)
(gcc, creates libpng.so.2.1.2.0beta2)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.mips => MIPS makefile
makefile.acorn => Acorn makefile

4
Y2KINFO
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@ -1,13 +1,13 @@
Y2K compliance in libpng:
=========================
May 6, 2001
May 7, 2001
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
upward through 1.2.0beta1 are Y2K compliant. It is my belief that earlier
upward through 1.2.0beta2 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer

2
configure vendored
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@ -1,5 +1,5 @@
echo "
There is no \"configure\" script for Libpng-1.2.0beta1. Instead, please
There is no \"configure\" script for Libpng-1.2.0beta2. Instead, please
copy the appropriate makefile for your system from the \"scripts\"
directory. Read the INSTALL file for more details.
"

8
example.c
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@ -338,7 +338,8 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
for (row = 0; row < height; row++)
{
row_pointers[row] = malloc(png_get_rowbytes(png_ptr, info_ptr));
row_pointers[row] = png_malloc(png_ptr, png_get_rowbytes(png_ptr,
info_ptr));
}
/* Now it's time to read the image. One of these methods is REQUIRED */
@ -494,7 +495,7 @@ row_callback(png_structp png_ptr, png_bytep new_row,
* png_progressive_combine_row() passing in the row and the
* old row. You can call this function for NULL rows (it will
* just return) and for non-interlaced images (it just does the
* memcpy for you) if it will make the code easier. Thus, you
* png_memcpy for you) if it will make the code easier. Thus, you
* can just do this for all cases:
*/
@ -603,7 +604,8 @@ void write_png(char *file_name /* , ... other image information ... */)
PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
/* set the palette if there is one. REQUIRED for indexed-color images */
palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH * sizeof (png_color));
palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH
* sizeof (png_color));
/* ... set palette colors ... */
png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH);
/* You must not free palette here, because png_set_PLTE only makes a link to

16
libpng.3
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@ -1,6 +1,6 @@
.TH LIBPNG 3 "May 6, 2001"
.TH LIBPNG 3 "May 7, 2001"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.0beta1
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.0beta2
.SH SYNOPSIS
\fI\fB
@ -781,7 +781,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng
libpng version 1.2.0beta1 - May 6, 2001
libpng version 1.2.0beta2 - May 7, 2001
Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
Copyright (c) 1998-2001 Glenn Randers-Pehrson
@ -3600,13 +3600,13 @@ application:
.SH IX. Y2K Compliance in libpng
May 6, 2001
May 7, 2001
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
upward through 1.2.0beta1 are Y2K compliant. It is my belief that earlier
upward through 1.2.0beta2 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that
@ -3777,7 +3777,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.2.0beta1 - May 6, 2001:
Libpng version 1.2.0beta2 - May 7, 2001:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).
@ -3794,7 +3794,7 @@ included in the libpng distribution, the latter shall prevail.)
If you modify libpng you may insert additional notices immediately following
this sentence.
libpng versions 1.0.7, July 1, 2000, through 1.2.0beta1, May 6, 2001, are
libpng versions 1.0.7, July 1, 2000, through 1.2.0beta2, May 7, 2001, are
Copyright (c) 2000-2001 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
@ -3886,7 +3886,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
randeg@alum.rpi.edu
May 6, 2001
May 7, 2001
.\" end of man page

6
libpng.txt
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@ -1,6 +1,6 @@
libpng.txt - A description on how to use and modify libpng
libpng version 1.2.0beta1 - May 6, 2001
libpng version 1.2.0beta2 - May 7, 2001
Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
Copyright (c) 1998-2001 Glenn Randers-Pehrson
@ -2819,13 +2819,13 @@ application:
IX. Y2K Compliance in libpng
May 6, 2001
May 7, 2001
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
upward through 1.2.0beta1 are Y2K compliant. It is my belief that earlier
upward through 1.2.0beta2 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that

4
libpngpf.3
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@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "May 6, 2001"
.TH LIBPNGPF 3 "May 7, 2001"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.0beta1
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.0beta2
(private functions)
.SH SYNOPSIS
\fB#include <png.h>\fP

2
png.5
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@ -1,4 +1,4 @@
.TH PNG 5 "May 6, 2001"
.TH PNG 5 "May 7, 2001"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION

12
png.c
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@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* libpng version 1.2.0beta1 - May 6, 2001
* libpng version 1.2.0beta2 - May 7, 2001
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -13,14 +13,14 @@
#include "png.h"
/* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_2_0beta1 Your_png_h_is_not_version_1_2_0beta1;
typedef version_1_2_0beta2 Your_png_h_is_not_version_1_2_0beta2;
/* Version information for C files. This had better match the version
* string defined in png.h. */
#ifdef PNG_USE_GLOBAL_ARRAYS
/* png_libpng_ver was changed to a function in version 1.0.5c */
const char png_libpng_ver[18] = "1.2.0beta1";
const char png_libpng_ver[18] = "1.2.0beta2";
/* png_sig was changed to a function in version 1.0.5c */
/* Place to hold the signature string for a PNG file. */
@ -627,7 +627,7 @@ png_charp PNGAPI
png_get_copyright(png_structp png_ptr)
{
if (png_ptr != NULL || png_ptr == NULL) /* silence compiler warning */
return ((png_charp) "\n libpng version 1.2.0beta1 - May 6, 2001\n\
return ((png_charp) "\n libpng version 1.2.0beta2 - May 7, 2001\n\
Copyright (c) 1998-2001 Glenn Randers-Pehrson\n\
Copyright (c) 1996, 1997 Andreas Dilger\n\
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n");
@ -645,8 +645,8 @@ png_get_libpng_ver(png_structp png_ptr)
{
/* Version of *.c files used when building libpng */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return((png_charp) "1.2.0beta1");
return((png_charp) "1.2.0beta1");
return((png_charp) "1.2.0beta2");
return((png_charp) "1.2.0beta2");
}
png_charp PNGAPI

20
png.h
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@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.2.0beta1 - May 6, 2001
* libpng version 1.2.0beta2 - May 7, 2001
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -9,7 +9,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.2.0beta1 - May 6, 2001: Glenn
* libpng versions 0.97, January 1998, through 1.2.0beta2 - May 7, 2001: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@ -101,7 +101,7 @@
* If you modify libpng you may insert additional notices immediately following
* this sentence.
*
* libpng versions 1.0.7, July 1, 2000, through 1.2.0beta1, May 6, 2001, are
* libpng versions 1.0.7, July 1, 2000, through 1.2.0beta2, May 7, 2001, are
* Copyright (c) 2000, 2001 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
@ -206,13 +206,13 @@
* Y2K compliance in libpng:
* =========================
*
* May 6, 2001
* May 7, 2001
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
*
* This is your unofficial assurance that libpng from version 0.71 and
* upward through 1.2.0beta1 are Y2K compliant. It is my belief that earlier
* upward through 1.2.0beta2 are Y2K compliant. It is my belief that earlier
* versions were also Y2K compliant.
*
* Libpng only has three year fields. One is a 2-byte unsigned integer
@ -268,7 +268,7 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.2.0beta1"
#define PNG_LIBPNG_VER_STRING "1.2.0beta2"
#define PNG_LIBPNG_VER_SONUM 2
#define PNG_LIBPNG_VER_DLLNUM %DLLNUM%
@ -280,7 +280,7 @@
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
#define PNG_LIBPNG_VER_BUILD 1
#define PNG_LIBPNG_VER_BUILD 2
#define PNG_LIBPNG_BUILD_ALPHA 1
#define PNG_LIBPNG_BUILD_BETA 2
@ -1195,9 +1195,9 @@ struct png_struct_def
/* This prevents a compiler error in png_get_copyright() in png.c if png.c
and png.h are both at * version 1.2.0beta1
and png.h are both at * version 1.2.0beta2
*/
typedef png_structp version_1_2_0beta1;
typedef png_structp version_1_2_0beta2;
typedef png_struct FAR * FAR * png_structpp;
@ -2310,7 +2310,7 @@ extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.2.0beta1 - May 6, 2001 (header)\n"
" libpng version 1.2.0beta2 - May 7, 2001 (header)\n"
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
/* With these routines we avoid an integer divide, which will be slower on

2
pngasmrd.h
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@ -1,6 +1,6 @@
/* pngasmrd.h - assembler version of utilities to read a PNG file
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 2001 Glenn Randers-Pehrson
*

2
pngconf.h
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@ -1,6 +1,6 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

4
pngerror.c
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@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -152,7 +152,7 @@ png_chunk_error(png_structp png_ptr, png_const_charp message)
void PNGAPI
png_chunk_warning(png_structp png_ptr, png_const_charp message)
{
char msg[16+64];
char msg[18+64];
png_format_buffer(png_ptr, msg, message);
png_warning(png_ptr, msg);
}

2
pnggccrd.c
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@ -6,7 +6,7 @@
* and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
* for Intel's performance analysis of the MMX vs. non-MMX code.
*
* libpng version 1.2.0beta1 - May 6, 2001
* libpng version 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation

42
pngget.c
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@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -137,7 +137,7 @@ png_get_y_pixels_per_meter(png_structp png_ptr, png_infop info_ptr)
#if defined(PNG_pHYs_SUPPORTED)
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\n", "png_get_y_pixels_per_meter");
if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER)
return (0);
else return (info_ptr->y_pixels_per_unit);
@ -297,7 +297,7 @@ png_get_y_offset_inches(png_structp png_ptr, png_infop info_ptr)
*.00003937);
}
#if defined(PNG_READ_pHYs_SUPPORTED)
#if defined(PNG_pHYs_SUPPORTED)
png_uint_32 PNGAPI
png_get_pHYs_dpi(png_structp png_ptr, png_infop info_ptr,
png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
@ -330,7 +330,7 @@ png_get_pHYs_dpi(png_structp png_ptr, png_infop info_ptr,
}
return (retval);
}
#endif /* PNG_READ_pHYs_SUPPORTED */
#endif /* PNG_pHYs_SUPPORTED */
#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */
/* png_get_channels really belongs in here, too, but it's been around longer */
@ -355,7 +355,7 @@ png_get_signature(png_structp png_ptr, png_infop info_ptr)
return (NULL);
}
#if defined(PNG_READ_bKGD_SUPPORTED)
#if defined(PNG_bKGD_SUPPORTED)
png_uint_32 PNGAPI
png_get_bKGD(png_structp png_ptr, png_infop info_ptr,
png_color_16p *background)
@ -371,7 +371,7 @@ png_get_bKGD(png_structp png_ptr, png_infop info_ptr,
}
#endif
#if defined(PNG_READ_cHRM_SUPPORTED)
#if defined(PNG_cHRM_SUPPORTED)
#ifdef PNG_FLOATING_POINT_SUPPORTED
png_uint_32 PNGAPI
png_get_cHRM(png_structp png_ptr, png_infop info_ptr,
@ -435,7 +435,7 @@ png_get_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
#endif
#endif
#if defined(PNG_READ_gAMA_SUPPORTED)
#if defined(PNG_gAMA_SUPPORTED)
#ifdef PNG_FLOATING_POINT_SUPPORTED
png_uint_32 PNGAPI
png_get_gAMA(png_structp png_ptr, png_infop info_ptr, double *file_gamma)
@ -467,7 +467,7 @@ png_get_gAMA_fixed(png_structp png_ptr, png_infop info_ptr,
#endif
#endif
#if defined(PNG_READ_sRGB_SUPPORTED)
#if defined(PNG_sRGB_SUPPORTED)
png_uint_32 PNGAPI
png_get_sRGB(png_structp png_ptr, png_infop info_ptr, int *file_srgb_intent)
{
@ -482,7 +482,7 @@ png_get_sRGB(png_structp png_ptr, png_infop info_ptr, int *file_srgb_intent)
}
#endif
#if defined(PNG_READ_iCCP_SUPPORTED)
#if defined(PNG_iCCP_SUPPORTED)
png_uint_32 PNGAPI
png_get_iCCP(png_structp png_ptr, png_infop info_ptr,
png_charpp name, int *compression_type,
@ -504,7 +504,7 @@ png_get_iCCP(png_structp png_ptr, png_infop info_ptr,
}
#endif
#if defined(PNG_READ_sPLT_SUPPORTED)
#if defined(PNG_sPLT_SUPPORTED)
png_uint_32 PNGAPI
png_get_sPLT(png_structp png_ptr, png_infop info_ptr,
png_sPLT_tpp spalettes)
@ -515,7 +515,7 @@ png_get_sPLT(png_structp png_ptr, png_infop info_ptr,
}
#endif
#if defined(PNG_READ_hIST_SUPPORTED)
#if defined(PNG_hIST_SUPPORTED)
png_uint_32 PNGAPI
png_get_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p *hist)
{
@ -576,7 +576,7 @@ png_get_IHDR(png_structp png_ptr, png_infop info_ptr,
return (0);
}
#if defined(PNG_READ_oFFs_SUPPORTED)
#if defined(PNG_oFFs_SUPPORTED)
png_uint_32 PNGAPI
png_get_oFFs(png_structp png_ptr, png_infop info_ptr,
png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type)
@ -594,7 +594,7 @@ png_get_oFFs(png_structp png_ptr, png_infop info_ptr,
}
#endif
#if defined(PNG_READ_pCAL_SUPPORTED)
#if defined(PNG_pCAL_SUPPORTED)
png_uint_32 PNGAPI
png_get_pCAL(png_structp png_ptr, png_infop info_ptr,
png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams,
@ -618,7 +618,7 @@ png_get_pCAL(png_structp png_ptr, png_infop info_ptr,
}
#endif
#if defined(PNG_READ_sCAL_SUPPORTED) || defined(PNG_WRITE_sCAL_SUPPORTED)
#if defined(PNG_sCAL_SUPPORTED)
#ifdef PNG_FLOATING_POINT_SUPPORTED
png_uint_32 PNGAPI
png_get_sCAL(png_structp png_ptr, png_infop info_ptr,
@ -654,7 +654,7 @@ png_get_sCAL_s(png_structp png_ptr, png_infop info_ptr,
#endif
#endif
#if defined(PNG_READ_pHYs_SUPPORTED)
#if defined(PNG_pHYs_SUPPORTED)
png_uint_32 PNGAPI
png_get_pHYs(png_structp png_ptr, png_infop info_ptr,
png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)
@ -701,7 +701,7 @@ png_get_PLTE(png_structp png_ptr, png_infop info_ptr, png_colorp *palette,
return (0);
}
#if defined(PNG_READ_sBIT_SUPPORTED)
#if defined(PNG_sBIT_SUPPORTED)
png_uint_32 PNGAPI
png_get_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit)
{
@ -716,7 +716,7 @@ png_get_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit)
}
#endif
#if defined(PNG_READ_TEXT_SUPPORTED)
#if defined(PNG_TEXT_SUPPORTED)
png_uint_32 PNGAPI
png_get_text(png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr,
int *num_text)
@ -738,7 +738,7 @@ png_get_text(png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr,
}
#endif
#if defined(PNG_READ_tIME_SUPPORTED)
#if defined(PNG_tIME_SUPPORTED)
png_uint_32 PNGAPI
png_get_tIME(png_structp png_ptr, png_infop info_ptr, png_timep *mod_time)
{
@ -753,7 +753,7 @@ png_get_tIME(png_structp png_ptr, png_infop info_ptr, png_timep *mod_time)
}
#endif
#if defined(PNG_READ_tRNS_SUPPORTED)
#if defined(PNG_tRNS_SUPPORTED)
png_uint_32 PNGAPI
png_get_tRNS(png_structp png_ptr, png_infop info_ptr,
png_bytep *trans, int *num_trans, png_color_16p *trans_values)
@ -792,7 +792,7 @@ png_get_tRNS(png_structp png_ptr, png_infop info_ptr,
}
#endif
#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
png_uint_32 PNGAPI
png_get_unknown_chunks(png_structp png_ptr, png_infop info_ptr,
png_unknown_chunkpp unknowns)
@ -811,7 +811,7 @@ png_get_rgb_to_gray_status (png_structp png_ptr)
}
#endif
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
#if defined(PNG_USER_CHUNKS_SUPPORTED)
png_voidp PNGAPI
png_get_user_chunk_ptr(png_structp png_ptr)
{

20
pngmem.c
View File

@ -1,7 +1,7 @@
/* pngmem.c - stub functions for memory allocation
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -119,7 +119,12 @@ png_malloc(png_structp png_ptr, png_uint_32 size)
#ifdef PNG_USER_MEM_SUPPORTED
if(png_ptr->malloc_fn != NULL)
return ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, size));
{
ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, size));
if (ret == NULL)
png_error(png_ptr, "Out of memory!");
return (ret);
}
else
return png_malloc_default(png_ptr, size);
}
@ -373,15 +378,18 @@ png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn)
png_voidp PNGAPI
png_malloc(png_structp png_ptr, png_uint_32 size)
{
#ifndef PNG_USER_MEM_SUPPORTED
png_voidp ret;
#endif
if (png_ptr == NULL || size == 0)
return ((png_voidp)NULL);
#ifdef PNG_USER_MEM_SUPPORTED
if(png_ptr->malloc_fn != NULL)
return ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, size));
{
ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, size));
if (ret == NULL)
png_error(png_ptr, "Out of Memory!");
return (ret);
}
else
return (png_malloc_default(png_ptr, size));
}
@ -407,9 +415,7 @@ png_malloc_default(png_structp png_ptr, png_uint_32 size)
#endif
if (ret == NULL)
{
png_error(png_ptr, "Out of Memory");
}
return (ret);
}

52
pngpread.c
View File

@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -796,6 +796,19 @@ png_push_process_row(png_structp png_ptr)
png_read_push_finish_row(png_ptr);
}
}
if (png_ptr->pass == 4 && png_ptr->height <= 4)
{
for (i = 0; i < 2 && png_ptr->pass == 4; i++)
{
png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
}
if (png_ptr->pass == 6 && png_ptr->height <= 4)
{
png_push_have_row(png_ptr, NULL);
png_read_push_finish_row(png_ptr);
}
break;
}
case 1:
@ -982,19 +995,20 @@ png_read_push_finish_row(png_structp png_ptr)
#if defined(PNG_READ_tEXt_SUPPORTED)
void /* PRIVATE */
png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
{
if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
{
png_error(png_ptr, "Out of place tEXt");
/* to quiet some compiler warnings */
info_ptr = info_ptr;
if(info_ptr == NULL) return;
}
#ifdef PNG_MAX_MALLOC_64K
png_ptr->skip_length = 0; /* This may not be necessary */
if (length > (png_uint_32)65535L) /* Can't hold the entire string in memory */
if (length > (png_uint_32)65535L) /* Can't hold entire string in memory */
{
png_warning(png_ptr, "tEXt chunk too large to fit in memory");
png_ptr->skip_length = length - (png_uint_32)65535L;
@ -1073,13 +1087,14 @@ png_push_read_tEXt(png_structp png_ptr, png_infop info_ptr)
#if defined(PNG_READ_zTXt_SUPPORTED)
void /* PRIVATE */
png_push_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_push_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
{
if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
{
png_error(png_ptr, "Out of place zTXt");
/* to quiet some compiler warnings */
info_ptr = info_ptr;
if(info_ptr == NULL) return;
}
#ifdef PNG_MAX_MALLOC_64K
@ -1185,8 +1200,8 @@ png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)
if (text == NULL)
{
text = (png_charp)png_malloc(png_ptr,
(png_uint_32)(png_ptr->zbuf_size - png_ptr->zstream.avail_out +
key_size + 1));
(png_uint_32)(png_ptr->zbuf_size - png_ptr->zstream.avail_out
+ key_size + 1));
png_memcpy(text + key_size, png_ptr->zbuf,
png_ptr->zbuf_size - png_ptr->zstream.avail_out);
png_memcpy(text, key, key_size);
@ -1257,19 +1272,20 @@ png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)
#if defined(PNG_READ_iTXt_SUPPORTED)
void /* PRIVATE */
png_push_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_push_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
{
if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
{
png_error(png_ptr, "Out of place iTXt");
/* to quiet some compiler warnings */
info_ptr = info_ptr;
if(info_ptr == NULL) return;
}
#ifdef PNG_MAX_MALLOC_64K
png_ptr->skip_length = 0; /* This may not be necessary */
if (length > (png_uint_32)65535L) /* Can't hold the entire string in memory */
if (length > (png_uint_32)65535L) /* Can't hold entire string in memory */
{
png_warning(png_ptr, "iTXt chunk too large to fit in memory");
png_ptr->skip_length = length - (png_uint_32)65535L;
@ -1367,7 +1383,8 @@ png_push_read_iTXt(png_structp png_ptr, png_infop info_ptr)
* name or a critical chunk), the chunk is (currently) silently ignored.
*/
void /* PRIVATE */
png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
{
png_uint_32 skip=0;
png_check_chunk_name(png_ptr, png_ptr->chunk_name);
@ -1378,14 +1395,15 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 len
if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) !=
HANDLE_CHUNK_ALWAYS
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
&& png_ptr->read_user_chunk_fn == (png_user_chunk_ptr)NULL
&& png_ptr->read_user_chunk_fn == NULL
#endif
)
#endif
png_chunk_error(png_ptr, "unknown critical chunk");
/* to quiet compiler warnings about unused info_ptr */
info_ptr = info_ptr;
/* to quiet compiler warnings about unused info_ptr */
if (info_ptr == NULL)
return;
}
#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
@ -1402,12 +1420,12 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 len
}
#endif
strcpy((png_charp)chunk.name, (png_charp)png_ptr->chunk_name);
png_strcpy((png_charp)chunk.name, (png_charp)png_ptr->chunk_name);
chunk.data = (png_bytep)png_malloc(png_ptr, length);
png_crc_read(png_ptr, chunk.data, length);
chunk.size = length;
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
if(png_ptr->read_user_chunk_fn != (png_user_chunk_ptr)NULL)
if(png_ptr->read_user_chunk_fn != NULL)
{
/* callback to user unknown chunk handler */
if ((*(png_ptr->read_user_chunk_fn)) (png_ptr, &chunk) <= 0)

19
pngread.c
View File

@ -1,7 +1,7 @@
/* pngread.c - read a PNG file
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -53,7 +53,6 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
{
return (png_structp)NULL;
}
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
png_init_mmx_flags(png_ptr); /* 1.2.0 addition */
#endif
@ -723,7 +722,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
* not called png_set_interlace_handling(), the display_row buffer will
* be ignored, so pass NULL to it.
*
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.0beta1
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.0beta2
*/
void PNGAPI
@ -772,7 +771,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
* only call this function once. If you desire to have an image for
* each pass of a interlaced image, use png_read_rows() instead.
*
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.0beta1
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.0beta2
*/
void PNGAPI
png_read_image(png_structp png_ptr, png_bytepp image)
@ -1060,7 +1059,7 @@ png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr,
}
/* free all memory used by the read (old method) */
void PNGAPI
void /* PRIVATE */
png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr)
{
#ifdef PNG_SETJMP_SUPPORTED
@ -1313,7 +1312,7 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
/* Optional call to gamma correct and add the background to the palette
* and update info structure. REQUIRED if you are expecting libpng to
* update the palette for you (ie you selected such a transform above).
* update the palette for you (i.e., you selected such a transform above).
*/
png_read_update_info(png_ptr, info_ptr);
@ -1325,13 +1324,15 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
if(info_ptr->row_pointers == NULL)
{
info_ptr->row_pointers = (png_bytepp)png_malloc(png_ptr,
info_ptr->height * sizeof(png_bytep));
info_ptr->height * sizeof(png_bytep));
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_ROWS;
#endif
for (row = 0; row < (int)info_ptr->height; row++)
info_ptr->row_pointers[row] = png_malloc(png_ptr,
{
info_ptr->row_pointers[row] = (png_bytep)png_malloc(png_ptr,
png_get_rowbytes(png_ptr, info_ptr));
}
}
png_read_image(png_ptr, info_ptr->row_pointers);
@ -1340,7 +1341,7 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
/* read rest of file, and get additional chunks in info_ptr - REQUIRED */
png_read_end(png_ptr, info_ptr);
if(transforms == 0 || params == (voidp)NULL)
if(transforms == 0 || params == NULL)
/* quiet compiler warnings */ return;
}

2
pngrio.c
View File

@ -1,7 +1,7 @@
/* pngrio.c - functions for data input
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngrtran.c
View File

@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

102
pngrutil.c
View File

@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
* libpng 1.2.0beta1 - May 6, 2001
* libpng 1.2.0beta2 - May 7, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -30,7 +30,7 @@ __inline double strtod(const char *nptr, char **endptr)
MultiByteToWideChar(CP_ACP, 0, nptr, -1, str, len);
result = wcstod(str, &end);
len = WideCharToMultiByte(CP_ACP, 0, end, -1, NULL, 0, NULL, NULL);
*endptr = (char *)nptr + (strlen(nptr) - len + 1);
*endptr = (char *)nptr + (png_strlen(nptr) - len + 1);
free(str);
}
return result;
@ -220,7 +220,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
png_ptr->zbuf_size - png_ptr->zstream.avail_out;
text = (png_charp)png_malloc(png_ptr, text_size + 1);
png_memcpy(text + prefix_size, png_ptr->zbuf,
text_size - prefix_size);
text_size - prefix_size);
png_memcpy(text, chunkdata, prefix_size);
*(text + text_size) = 0x00;
}
@ -332,59 +332,6 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
filter_type = buf[11];
interlace_type = buf[12];
/* check for width and height valid values */
if (width == 0 || width > PNG_MAX_UINT || height == 0 ||
height > PNG_MAX_UINT)
png_error(png_ptr, "Invalid image size in IHDR");
/* check other values */
if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 &&
bit_depth != 8 && bit_depth != 16)
png_error(png_ptr, "Invalid bit depth in IHDR");
if (color_type < 0 || color_type == 1 ||
color_type == 5 || color_type > 6)
png_error(png_ptr, "Invalid color type in IHDR");
if (((color_type == PNG_COLOR_TYPE_PALETTE) && bit_depth > 8) ||
((color_type == PNG_COLOR_TYPE_RGB ||
color_type == PNG_COLOR_TYPE_GRAY_ALPHA ||
color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8))
png_error(png_ptr, "Invalid color type/bit depth combination in IHDR");
if (interlace_type >= PNG_INTERLACE_LAST)
png_error(png_ptr, "Unknown interlace method in IHDR");
if (compression_type != PNG_COMPRESSION_TYPE_BASE)
png_error(png_ptr, "Unknown compression method in IHDR");
#if defined(PNG_MNG_FEATURES_SUPPORTED)
/* Accept filter_method 64 (intrapixel differencing) only if
* 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and
* 2. Libpng did not read a PNG signature (this filter_method is only
* used in PNG datastreams that are embedded in MNG datastreams) and
* 3. The application called png_permit_mng_features with a mask that
* included PNG_FLAG_MNG_FILTER_64 and
* 4. The filter_method is 64 and
* 5. The color_type is RGB or RGBA
*/
if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&png_ptr->mng_features_permitted)
png_warning(png_ptr,"MNG features are not allowed in a PNG datastream\n");
if(filter_type != PNG_FILTER_TYPE_BASE)
{
if(!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
(filter_type == PNG_INTRAPIXEL_DIFFERENCING) &&
((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) &&
(color_type == PNG_COLOR_TYPE_RGB ||
color_type == PNG_COLOR_TYPE_RGB_ALPHA)))
png_error(png_ptr, "Unknown filter method in IHDR");
if(png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)
png_warning(png_ptr, "Invalid filter method in IHDR");
}
#else
if(filter_type != PNG_FILTER_TYPE_BASE)
png_error(png_ptr, "Unknown filter method in IHDR");
#endif
/* set internal variables */
png_ptr->width = width;
@ -449,6 +396,13 @@ png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_ptr->mode |= PNG_HAVE_PLTE;
if (!(png_ptr->color_type&PNG_COLOR_MASK_COLOR))
{
png_warning(png_ptr,
"Ignoring PLTE chunk in grayscale PNG");
png_crc_finish(png_ptr, length);
return;
}
#if !defined(PNG_READ_OPT_PLTE_SUPPORTED)
if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE)
{
@ -626,7 +580,11 @@ png_handle_gAMA(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
igamma = (png_fixed_point)png_get_uint_32(buf);
/* check for zero gamma */
if (igamma == 0)
return;
{
png_warning(png_ptr,
"Ignoring gAMA chunk with gamma=0");
return;
}
#if defined(PNG_READ_sRGB_SUPPORTED)
if (info_ptr->valid & PNG_INFO_sRGB)
@ -1127,7 +1085,7 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
chunkdata = (png_bytep)png_malloc(png_ptr, length + 1);
slength = (png_size_t)length;
png_crc_read(png_ptr, chunkdata, slength);
png_crc_read(png_ptr, (png_bytep)chunkdata, slength);
if (png_crc_finish(png_ptr, skip))
{
@ -1157,7 +1115,8 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
if (data_length % entry_size)
{
png_free(png_ptr, chunkdata);
png_error(png_ptr, "sPLT chunk has bad length");
png_warning(png_ptr, "sPLT chunk has bad length");
return;
}
new_palette.nentries = data_length / entry_size;
@ -1714,8 +1673,8 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
}
#else
#ifdef PNG_FIXED_POINT_SUPPORTED
swidth = (png_charp)png_malloc(png_ptr, strlen(ep) + 1);
png_memcpy(swidth, ep, (png_size_t)strlen(ep));
swidth = (png_charp)png_malloc(png_ptr, png_strlen(ep) + 1);
png_memcpy(swidth, ep, (png_size_t)png_strlen(ep));
#endif
#endif
@ -1732,8 +1691,8 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
}
#else
#ifdef PNG_FIXED_POINT_SUPPORTED
sheight = (png_charp)png_malloc(png_ptr, strlen(ep) + 1);
png_memcpy(sheight, ep, (png_size_t)strlen(ep));
sheight = (png_charp)png_malloc(png_ptr, png_strlen(ep) + 1);
png_memcpy(sheight, ep, (png_size_t)png_strlen(ep));
#endif
#endif
@ -1906,7 +1865,7 @@ png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
#endif
chunkdata = (png_charp)png_malloc(png_ptr, length + 1);
slength = (png_size_t)length;
slength = (png_size_t)length;
png_crc_read(png_ptr, (png_bytep)chunkdata, slength);
if (png_crc_finish(png_ptr, 0))
{
@ -2080,7 +2039,7 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) !=
HANDLE_CHUNK_ALWAYS
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
&& png_ptr->read_user_chunk_fn == (png_user_chunk_ptr)NULL
&& png_ptr->read_user_chunk_fn == NULL
#endif
)
#endif
@ -2100,12 +2059,12 @@ png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
length = (png_uint_32)65535L;