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Imported from libpng-1.0.12beta1.tar

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This commit is contained in:
Glenn Randers-Pehrson 2001-05-14 09:20:53 -05:00
parent 328353990f
commit e68f5a361b
55 changed files with 807 additions and 303 deletions
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22
ANNOUNCE
View File

@ -1,18 +1,20 @@
Libpng 1.0.11 - April 27, 2001
Libpng 1.0.12beta1 - May 14, 2001
This is a public release of libpng, intended for use in production codes.
Changes since the last public release (1.0.10):
Changes since the last public release (1.0.11):
Added type casts on several png_malloc() calls (Dimitri Papadapoulos).
Removed a no-longer needed AIX work-around from pngconf.h
Changed several "//" single-line comments to C-style in pnggccrd.c
Removed PNGAPI from private functions whose prototypes did not have PNGAPI.
Updated scripts/pngos2.def
Added a check for NULL return from user's malloc_fn().
Removed some useless type casts of the NULL pointer.
Added makefile.netbsd
Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot)
Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h
Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings.
Bumped DLLNUM to 2.
Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
Eliminated the png_error about apps using png_read|write_init(). Instead,
libpng will reallocate the png_struct and info_struct if they are too small.
This achieves future binary compatibility for old applications written for
libpng-0.88 and earlier.
Modified png_create_struct so it passes user mem_ptr to user memory allocator.
Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu

11
CHANGES
View File

@ -930,6 +930,17 @@ version 1.0.11beta4 [April 20, 2001]
Added makefile.netbsd
version 1.0.11 [April 27, 2001]
Revised makefile.netbsd
version 1.0.12beta1 [May 14, 2001]
Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot)
Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h
Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings.
Bumped DLLNUM to 2.
Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
Eliminated the png_error about apps using png_read|write_init(). Instead,
libpng will reallocate the png_struct and info_struct if they are too small.
This achieves future binary compatibility for old applications written for
libpng-0.88 and earlier.
Modified png_create_struct so it passes user mem_ptr to user memory allocator.
Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu

12
INSTALL
View File

@ -1,5 +1,5 @@
Installing libpng version 1.0.11 - April 27, 2001
Installing libpng version 1.0.12beta1 - May 14, 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-1.0.11" or "lpng109" and "zlib-1.1.3"
might be called "libpng-1.0.12beta1" 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:
@ -60,8 +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.2.1.0.11)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.11,
makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.12beta1)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.12beta1,
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
@ -78,9 +78,9 @@ include
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.2.1.0.11)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.12beta1)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.11)
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.12beta1)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.mips => MIPS makefile
makefile.acorn => Acorn makefile

4
LICENSE
View File

@ -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 1.0.11, April 27, 2001, are
libpng versions 1.0.7, July 1, 2000, through 1.0.12beta1, May 14, 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
@ -99,4 +99,4 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
randeg@alum.rpi.edu
April 27, 2001
May 14, 2001

10
README
View File

@ -1,4 +1,4 @@
README for libpng 1.0.11 - April 27, 2001 (shared library 2.1)
README for libpng 1.0.12beta1 - May 14, 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.
@ -183,9 +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.2.1.0.11)
(gcc, creates libpng.so.2.1.0.12beta1)
makefile.gcmmx => Linux/ELF makefile (gcc, creates
libpng.so.2.1.0.11, uses assembler code
libpng.so.2.1.0.12beta1, 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
@ -202,10 +202,10 @@ Files in this distribution:
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.2.1.0.11)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.12beta1)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng.so.2.1.0.11)
(gcc, creates libpng.so.2.1.0.12beta1)
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:
=========================
April 27, 2001
May 14, 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 1.0.11 are Y2K compliant. It is my belief that earlier
upward through 1.0.12beta1 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
View File

@ -1,5 +1,5 @@
echo "
There is no \"configure\" script for Libpng-1.0.11. Instead, please
There is no \"configure\" script for Libpng-1.0.12beta1. Instead, please
copy the appropriate makefile for your system from the \"scripts\"
directory. Read the INSTALL file for more details.
"

8
contrib/msvctest/msvctest.dsp
View File

@ -54,7 +54,7 @@ BSC32=bscmake.exe
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 /nologo /subsystem:console /machine:I386
# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll\libpng1.lib /nologo /subsystem:console /machine:I386
# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll\libpng2.lib /nologo /subsystem:console /machine:I386
# Begin Special Build Tool
OutDir=.\dll
SOURCE="$(InputPath)"
@ -84,7 +84,7 @@ BSC32=bscmake.exe
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll_dbg\libpng1d.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll_dbg\libpng2d.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# Begin Special Build Tool
OutDir=.\dll_dbg
SOURCE="$(InputPath)"
@ -114,7 +114,7 @@ BSC32=bscmake.exe
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 /nologo /subsystem:console /machine:I386
# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll_asm\libpng1a.lib /nologo /subsystem:console /machine:I386
# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll_asm\libpng2a.lib /nologo /subsystem:console /machine:I386
# Begin Special Build Tool
OutDir=.\dll_asm
SOURCE="$(InputPath)"
@ -144,7 +144,7 @@ BSC32=bscmake.exe
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll_dbga\libpng1b.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll_dbga\libpng2b.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# Begin Special Build Tool
OutDir=.\dll_dbga
SOURCE="$(InputPath)"

12
contrib/visupng/VisualPng.dsp
View File

@ -59,8 +59,8 @@ BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 libpng1.lib zlibd.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"libpng" /libpath:"zlib"
# ADD LINK32 libpng1.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\dll"
# ADD BASE LINK32 libpng2.lib zlibd.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"libpng" /libpath:"zlib"
# ADD LINK32 libpng2.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\dll"
# Begin Special Build Tool
OutDir=.\dll
SOURCE="$(InputPath)"
@ -92,9 +92,9 @@ BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 libpng1.lib zlibd.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"libpng" /libpath:"zlib"
# ADD BASE LINK32 libpng2.lib zlibd.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"libpng" /libpath:"zlib"
# SUBTRACT BASE LINK32 /nodefaultlib
# ADD LINK32 libpng1d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\dll_dbg"
# ADD LINK32 libpng2d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\dll_dbg"
# SUBTRACT LINK32 /nodefaultlib
# Begin Special Build Tool
OutDir=.\dll_dbg
@ -128,7 +128,7 @@ BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 libpng1.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\dll"
# ADD BASE LINK32 libpng2.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\dll"
# ADD LINK32 libpng.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\lib"
# Begin Special Build Tool
OutDir=.\lib
@ -161,7 +161,7 @@ BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 libpng1d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\dll_dbg"
# ADD BASE LINK32 libpng2d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\dll_dbg"
# SUBTRACT BASE LINK32 /nodefaultlib
# ADD LINK32 libpng.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\lib_dbg"
# SUBTRACT LINK32 /nodefaultlib

26
libpng.3
View File

@ -1,6 +1,6 @@
.TH LIBPNG 3 "April 27, 2001"
.TH LIBPNG 3 "May 14, 2001"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.11
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.12beta1
.SH SYNOPSIS
\fI\fB
@ -747,10 +747,10 @@ 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 1.0.11 - April 27, 2001
libpng version 1.0.12beta1 - May 14, 2001
Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
Copyright (c) 1998-2001 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
@ -1033,7 +1033,8 @@ called after each row has been read, which you can use to control
a progress meter or the like. It's demonstrated in pngtest.c.
You must supply a function
void read_row_callback(png_ptr ptr, png_uint_32 row, int pass);
void read_row_callback(png_ptr ptr, png_uint_32 row,
int pass);
{
/* put your code here */
}
@ -2145,7 +2146,7 @@ png_infop info_ptr;
void
row_callback(png_structp png_ptr, png_bytep new_row,
png_uint_32 row_num, int pass)
png_uint_32 row_num, int pass)
{
/* If the image is interlaced, and you turned
on the interlace handler, this function will
@ -3427,7 +3428,7 @@ of the original PNG Group, Glenn Randers-Pehrson. Guy and Andreas are
still alive and well, but they have moved on to other things.
The old libpng functions png_read_init(), png_write_init(),
png_info_init(), png_read_destroy(), and png_write_destory() have been
png_info_init(), png_read_destroy(), and png_write_destroy() have been
moved to PNG_INTERNAL in version 0.95 to discourage their use. These
functions will be removed from libpng version 2.0.0.
@ -3468,13 +3469,13 @@ application:
.SH VIII. Y2K Compliance in libpng
April 27, 2001
May 14, 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 1.0.11 are Y2K compliant. It is my belief that earlier
upward through 1.0.12beta1 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
@ -3586,6 +3587,7 @@ the first widely used release:
1.0.11beta1-3 1 10011 2.1.0.11beta1-3
1.0.11rc1 1 10011 2.1.0.11rc1
1.0.11 1 10011 2.1.0.11
1.0.12beta1 1 10012 2.1.0.12beta1
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
@ -3643,7 +3645,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.0.11 - April 27, 2001:
Libpng version 1.0.12beta1 - May 14, 2001:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).
@ -3660,7 +3662,7 @@ 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 1.0.11, April 27, 2001, are
libpng versions 1.0.7, July 1, 2000, through 1.0.12beta1, May 14, 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
@ -3752,7 +3754,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
randeg@alum.rpi.edu
April 27, 2001
May 14, 2001
.\" end of man page

15
libpng.txt
View File

@ -1,9 +1,9 @@
libpng.txt - A description on how to use and modify libpng
libpng version 1.0.11 - April 27, 2001
libpng version 1.0.12beta1 - May 14, 2001
Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
Copyright (c) 1998-2001 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
@ -286,7 +286,8 @@ called after each row has been read, which you can use to control
a progress meter or the like. It's demonstrated in pngtest.c.
You must supply a function
void read_row_callback(png_ptr ptr, png_uint_32 row, int pass);
void read_row_callback(png_ptr ptr, png_uint_32 row,
int pass);
{
/* put your code here */
}
@ -1398,7 +1399,7 @@ png_infop info_ptr;
void
row_callback(png_structp png_ptr, png_bytep new_row,
png_uint_32 row_num, int pass)
png_uint_32 row_num, int pass)
{
/* If the image is interlaced, and you turned
on the interlace handler, this function will
@ -2680,7 +2681,7 @@ of the original PNG Group, Glenn Randers-Pehrson. Guy and Andreas are
still alive and well, but they have moved on to other things.
The old libpng functions png_read_init(), png_write_init(),
png_info_init(), png_read_destroy(), and png_write_destory() have been
png_info_init(), png_read_destroy(), and png_write_destroy() have been
moved to PNG_INTERNAL in version 0.95 to discourage their use. These
functions will be removed from libpng version 2.0.0.
@ -2721,13 +2722,13 @@ application:
VIII. Y2K Compliance in libpng
April 27, 2001
May 14, 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 1.0.11 are Y2K compliant. It is my belief that earlier
upward through 1.0.12beta1 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
View File

@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "April 27, 2001"
.TH LIBPNGPF 3 "May 14, 2001"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.11
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.12beta1
(private functions)
.SH SYNOPSIS
\fB#include <png.h>\fP

2
png.5
View File

@ -1,4 +1,4 @@
.TH PNG 5 "April 27, 2001"
.TH PNG 5 "May 14, 2001"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION

53
png.c
View File

@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* libpng version 1.0.11 - April 27, 2001
* libpng version 1.0.12beta1 - May 14, 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_0_11 Your_png_h_is_not_version_1_0_11;
typedef version_1_0_12beta1 Your_png_h_is_not_version_1_0_12beta1;
/* 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] = "1.0.11";
const char png_libpng_ver[18] = "1.0.12beta1";
/* png_sig was changed to a function in version 1.0.5c */
/* Place to hold the signature string for a PNG file. */
@ -213,12 +213,12 @@ png_create_info_struct(png_structp png_ptr)
if(png_ptr == NULL) return (NULL);
#ifdef PNG_USER_MEM_SUPPORTED
if ((info_ptr = (png_infop)png_create_struct_2(PNG_STRUCT_INFO,
png_ptr->malloc_fn)) != NULL)
png_ptr->malloc_fn, png_ptr->mem_ptr)) != NULL)
#else
if ((info_ptr = (png_infop)png_create_struct(PNG_STRUCT_INFO)) != NULL)
#endif
{
png_info_init(info_ptr);
png_info_init_3(&info_ptr, sizeof(png_info));
}
return (info_ptr);
@ -243,7 +243,8 @@ png_destroy_info_struct(png_structp png_ptr, png_infopp info_ptr_ptr)
png_info_destroy(png_ptr, info_ptr);
#ifdef PNG_USER_MEM_SUPPORTED
png_destroy_struct_2((png_voidp)info_ptr, png_ptr->free_fn);
png_destroy_struct_2((png_voidp)info_ptr, png_ptr->free_fn,
png_ptr->mem_ptr);
#else
png_destroy_struct((png_voidp)info_ptr);
#endif
@ -255,10 +256,28 @@ png_destroy_info_struct(png_structp png_ptr, png_infopp info_ptr_ptr)
* and applications using it are urged to use png_create_info_struct()
* instead.
*/
void /* PRIVATE */
#undef png_info_init
void PNGAPI
png_info_init(png_infop info_ptr)
{
png_debug(1, "in png_info_init\n");
/* We only come here via pre-1.0.12-compiled applications */
png_info_init_3(&info_ptr, 0);
}
void PNGAPI
png_info_init_3(png_infopp ptr_ptr, png_size_t png_info_struct_size)
{
png_infop info_ptr = *ptr_ptr;
png_debug(1, "in png_info_init_3\n");
if(sizeof(png_info) > png_info_struct_size)
{
png_destroy_struct(info_ptr);
info_ptr = (png_infop)png_create_struct(PNG_STRUCT_INFO);
*ptr_ptr = info_ptr;
}
/* set everything to 0 */
png_memset(info_ptr, 0, sizeof (png_info));
}
@ -537,7 +556,7 @@ png_info_destroy(png_structp png_ptr, png_infop info_ptr)
}
#endif
png_info_init(info_ptr);
png_info_init_3(&info_ptr, sizeof(png_info));
}
/* This function returns a pointer to the io_ptr associated with the user
@ -627,7 +646,7 @@ 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 1.0.11 - April 27, 2001\n\
return ((png_charp) "\n libpng version 1.0.12beta1 - May 14, 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 +664,8 @@ 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) "1.0.11");
return((png_charp) "1.0.11");
return((png_charp) "1.0.12beta1");
return((png_charp) "1.0.12beta1");
}
png_charp PNGAPI
@ -696,17 +715,15 @@ png_uint_32 PNGAPI
png_access_version_number(void)
{
/* Version of *.c files used when building libpng */
return((png_uint_32) 10011L);
return((png_uint_32) 10012L);
}
#if 0 /* delay this until version 1.2.0 */
/* this function was added to libpng 1.0.9 (porting aid to libpng-1.2.0) */
#ifndef PNG_ASSEMBLER_CODE_SUPPORTED
/* this function was added to libpng 1.2.0 */
#if !defined(PNG_USE_PNGGCCRD) && \
!(defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_USE_PNGVCRD))
int PNGAPI
png_mmx_support(void)
{
return -1;
}
#endif
#endif /* 0 */

99
png.h
View File

@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.0.11 - April 27, 2001
* libpng version 1.0.12beta1 - May 14, 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 1.0.11 - April 27, 2001: Glenn
* libpng versions 0.97, January 1998, through 1.0.12beta1 - May 14, 2001: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@ -70,6 +70,10 @@
* 1.0.11beta1-3 1 10011 2.1.0.11beta1-3
* 1.0.11rc1 1 10011 2.1.0.11rc1
* 1.0.11 1 10011 2.1.0.11
* 1.0.12beta1 2 10012 2.1.0.11beta1
* 1.1.0a-f 1 10100 2.1.1.0a-f (branch abandoned)
* 1.2.0beta1-2 2 10200 2.1.2.0beta1-2
* 1.2.0beta3 3 10200 3.1.2.0beta3
*
* Henceforth the source version will match the shared-library major
* and minor numbers; the shared-library major version number will be
@ -99,7 +103,7 @@
* If you modify libpng you may insert additional notices immediately following
* this sentence.
*
* libpng versions 1.0.7, July 1, 2000, through 1.0.11, April 27, 2001, are
* libpng versions 1.0.7, July 1, 2000, through 1.0.12beta1, May 14, 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
@ -204,13 +208,13 @@
* Y2K compliance in libpng:
* =========================
*
* April 27, 2001
* May 14, 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 1.0.11 are Y2K compliant. It is my belief that earlier
* upward through 1.0.12beta1 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
@ -266,7 +270,7 @@
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.11"
#define PNG_LIBPNG_VER_STRING "1.0.12beta1"
#define PNG_LIBPNG_VER_SONUM 2
#define PNG_LIBPNG_VER_DLLNUM %DLLNUM%
@ -274,11 +278,11 @@
/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
#define PNG_LIBPNG_VER_MAJOR 1
#define PNG_LIBPNG_VER_MINOR 0
#define PNG_LIBPNG_VER_RELEASE 11
#define PNG_LIBPNG_VER_RELEASE 12
/* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
#define PNG_LIBPNG_VER_BUILD 0
#define PNG_LIBPNG_VER_BUILD 1
#define PNG_LIBPNG_BUILD_ALPHA 1
#define PNG_LIBPNG_BUILD_BETA 2
@ -286,14 +290,14 @@
#define PNG_LIBPNG_BUILD_STABLE 4
#define PNG_LIBPNG_BUILD_TYPEMASK 7
#define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with STABLE only */
#define PNG_LIBPNG_BUILD_TYPE 4
#define PNG_LIBPNG_BUILD_TYPE 2
/* Careful here. At one time, Guy wanted to use 082, but that would be octal.
* We must not include leading zeros.
* Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only
* version 1.0.0 was mis-numbered 100 instead of 10000). From
* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */
#define PNG_LIBPNG_VER 10011 /* 1.0.11 */
#define PNG_LIBPNG_VER 10012 /* 1.0.12 */
#ifndef PNG_VERSION_INFO_ONLY
@ -699,6 +703,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
png_byte pcal_nparams; /* number of parameters given in pcal_params */
#endif
/* New members added in libpng-1.0.6 */
#ifdef PNG_FREE_ME_SUPPORTED
png_uint_32 free_me; /* flags items libpng is responsible for freeing */
#endif
@ -1139,12 +1144,6 @@ struct png_struct_def
png_charp time_buffer; /* String to hold RFC 1123 time text */
#endif
#ifdef PNG_USER_MEM_SUPPORTED
png_voidp mem_ptr; /* user supplied struct for mem functions */
png_malloc_ptr malloc_fn; /* function for allocating memory */
png_free_ptr free_fn; /* function for freeing memory */
#endif
/* New members added in libpng-1.0.6 */
#ifdef PNG_FREE_ME_SUPPORTED
@ -1161,35 +1160,59 @@ struct png_struct_def
png_bytep chunk_list;
#endif
/* New members added in libpng-1.0.3 */
#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)
png_byte rgb_to_gray_status;
/* These were changed from png_byte in libpng-1.0.6 */
png_uint_16 rgb_to_gray_red_coeff;
png_uint_16 rgb_to_gray_green_coeff;
png_uint_16 rgb_to_gray_blue_coeff;
#endif
/* New member added in libpng-1.0.4 (renamed in 1.0.9) */
#if defined(PNG_MNG_FEATURES_SUPPORTED) || \
defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
/* Note to maintainer: change this to png_uint_32 at next opportunity */
/* changed from png_byte to png_uint_32 at version 1.2.0 */
png_byte mng_features_permitted;
#endif
/* New member added in libpng-1.0.7 */
#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
png_fixed_point int_gamma;
#endif
/* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */
#if defined(PNG_MNG_FEATURES_SUPPORTED)
png_byte filter_type;
#endif
#if defined(PNG_DEBUG) && defined(PNG_USE_PNGGCCRD)
/* New member added in libpng-1.0.10, ifdef'ed out in 1.2.0 */
png_uint_32 row_buf_size;
#endif
/* New members added in libpng-1.2.0 */
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
png_byte mmx_bitdepth_threshold;
png_uint_32 mmx_rowbytes_threshold;
png_uint_32 asm_flags;
#endif
/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */
#ifdef PNG_USER_MEM_SUPPORTED
png_voidp mem_ptr; /* user supplied struct for mem functions */
png_malloc_ptr malloc_fn; /* function for allocating memory */
png_free_ptr free_fn; /* function for freeing memory */
#endif
};
/* This prevents a compiler error in png_get_copyright() in png.c if png.c
and png.h are both at * version 1.0.11
and png.h are both at version 1.0.12beta1
*/
typedef png_structp version_1_0_11;
typedef png_structp version_1_0_12beta1;
typedef png_struct FAR * FAR * png_structpp;
@ -1240,6 +1263,7 @@ extern PNG_EXPORT(void,png_set_compression_buffer_size)
/* Reset the compression stream */
extern PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr));
/* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */
#ifdef PNG_USER_MEM_SUPPORTED
extern PNG_EXPORT(png_structp,png_create_read_struct_2)
PNGARG((png_const_charp user_png_ver, png_voidp error_ptr,
@ -1270,8 +1294,11 @@ extern PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr));
extern PNG_EXPORT(png_infop,png_create_info_struct)
PNGARG((png_structp png_ptr));
/* Initialize the info structure (old interface - NOT DLL EXPORTED) */
extern void png_info_init PNGARG((png_infop info_ptr));
/* Initialize the info structure (old interface - DEPRECATED) */
extern PNG_EXPORT(void,png_info_init) PNGARG((png_infop info_ptr));
#define png_info_init(info_ptr) png_info_init_3(&info_ptr, sizeof(png_info));
extern PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr,
png_size_t png_info_struct_size));
/* Writes all the PNG information before the image. */
extern PNG_EXPORT(void,png_write_info_before_PLTE) PNGARG((png_structp png_ptr,
@ -2229,15 +2256,23 @@ extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
png_ptr, png_uint_32 mng_features_permitted));
#endif
#if 0 /* delay these until version 1.2.0 */
/* png_mmx_support will be included unconditionally starting in version 1.2.0 */
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) || defined(PNG_USE_PNGGCCRD)
/* png.c, pnggccrd.c, or pngvcrd.c */
extern PNG_EXPORT(int,png_mmx_support) PNGARG((void));
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
/* Strip the prepended error numbers ("#nnn ") from error and warning
* messages before passing them to the error or warning handler. */
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
png_ptr, png_uint_32 strip_mode));
#endif
/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.0.11 - April 27, 2001 (header)\n"
" libpng version 1.0.12beta1 - May 14, 2001 (header)\n"
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
/* With these routines we avoid an integer divide, which will be slower on
@ -2360,6 +2395,8 @@ extern PNG_EXPORT(int,png_mmx_support) PNGARG((void));
#define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000L
#define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000L
#define PNG_FLAG_LIBRARY_MISMATCH 0x20000L
#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000L
#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000L
/* For use in png_set_keep_unknown, png_handle_as_unknown */
#define HANDLE_CHUNK_AS_DEFAULT 0
@ -2468,8 +2505,10 @@ PNG_EXTERN png_uint_16 png_get_uint_16 PNGARG((png_bytep buf));
* (old interface - DEPRECATED - use png_create_read_struct instead).
*/
extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr));
#define png_read_init(png_ptr) png_read_init_2(png_ptr, \
PNG_LIBPNG_VER_STRING, sizeof(png_struct), sizeof(png_info));
#define png_read_init(png_ptr) png_read_init_3(&png_ptr, \
PNG_LIBPNG_VER_STRING, sizeof(png_struct));
extern PNG_EXPORT(void,png_read_init_3) PNGARG((png_structpp ptr_ptr,
png_const_charp user_png_ver, png_size_t png_struct_size));
extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr,
png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t
png_info_size));
@ -2478,8 +2517,10 @@ extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr,
* (old interface - DEPRECATED - use png_create_write_struct instead).
*/
extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr));
#define png_write_init(png_ptr) png_write_init_2(png_ptr, \
PNG_LIBPNG_VER_STRING, sizeof(png_struct), sizeof(png_info));
#define png_write_init(png_ptr) png_write_init_3(&png_ptr, \
PNG_LIBPNG_VER_STRING, sizeof(png_struct));
extern PNG_EXPORT(void,png_write_init_3) PNGARG((png_structpp ptr_ptr,
png_const_charp user_png_ver, png_size_t png_struct_size));
extern PNG_EXPORT(void,png_write_init_2) PNGARG((png_structp png_ptr,
png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t
png_info_size));
@ -2491,9 +2532,9 @@ PNG_EXTERN png_voidp png_create_struct PNGARG((int type));
PNG_EXTERN void png_destroy_struct PNGARG((png_voidp struct_ptr));
PNG_EXTERN png_voidp png_create_struct_2 PNGARG((int type, png_malloc_ptr
malloc_fn));
malloc_fn, png_voidp mem_ptr));
PNG_EXTERN void png_destroy_struct_2 PNGARG((png_voidp struct_ptr,
png_free_ptr free_fn));
png_free_ptr free_fn, png_voidp mem_ptr));
/* Free any memory that info_ptr points to and reset struct. */
PNG_EXTERN void png_info_destroy PNGARG((png_structp png_ptr,

2
pngasmrd.h
View File

@ -1,6 +1,6 @@
/* pngasmrd.h - assembler version of utilities to read a PNG file
*
* libpng 1.0.11 - April 27, 2001
* libpng 1.0.12beta1 - May 14, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 2001 Glenn Randers-Pehrson
*

95
pngconf.h
View File

@ -1,6 +1,6 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng 1.0.11 - April 27, 2001
* libpng 1.0.12beta1 - May 14, 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)
@ -45,8 +45,8 @@
# define PNG_WRITE_SUPPORTED
#endif
/* Enable if you need to support PNGs that are embedded in MNG
datastreams */
/* Enabled by default in 1.2.0. You can disable this if you don't need to
support PNGs that are embedded in MNG datastreams */
/*
#ifndef PNG_NO_MNG_FEATURES
# ifndef PNG_MNG_FEATURES_SUPPORTED
@ -91,47 +91,58 @@
* this bit of #ifdefs will define the 'correct' config variables based on
* that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
* unnecessary.
*
* Also, the precedence order is:
* ALL_STATIC (since we can't #undef something outside our namespace)
* PNG_BUILD_DLL
* PNG_STATIC
* (nothing) == PNG_USE_DLL
*/
#if defined(__CYGWIN__)
# if defined(PNG_BUILD_DLL)
# if defined(ALL_STATIC)
# if defined(PNG_BUILD_DLL)
# undef PNG_BUILD_DLL
# endif
# if defined(PNG_USE_DLL)
# undef PNG_USE_DLL
# endif
# if !defined(PNG_DLL)
# define PNG_DLL
# if defined(PNG_DLL)
# undef PNG_DLL
# endif
# if defined(PNG_STATIC)
# undef PNG_STATIC
# endif
# else
# if defined(ALL_STATIC)
# if !defined(PNG_STATIC)
# define PNG_STATIC
# endif
# if defined(PNG_STATIC)
# else
# if defined (PNG_BUILD_DLL)
# if defined(PNG_STATIC)
# undef PNG_STATIC
# endif
# if defined(PNG_USE_DLL)
# undef PNG_USE_DLL
# endif
# if defined(PNG_DLL)
# undef PNG_DLL
# if !defined(PNG_DLL)
# define PNG_DLL
# endif
# else
# if defined(PNG_USE_DLL)
# if defined(PNG_STATIC)
# if defined(PNG_USE_DLL)
# undef PNG_USE_DLL
# endif
# if defined(PNG_DLL)
# undef PNG_DLL
# endif
# else
# if !defined(PNG_USE_DLL)
# define PNG_USE_DLL
# endif
# if !defined(PNG_DLL)
# define PNG_DLL
# endif
# else
# if defined(PNG_DLL)
# define PNG_USE_DLL
# else
# define PNG_USE_DLL
# define PNG_DLL
# endif
# endif
# endif
# endif
# endif
# endif
#endif
/* This protects us against compilers that run on a windowing system
* and thus don't have or would rather us not use the stdio types:
* stdin, stdout, and stderr. The only one currently used is stderr
@ -306,7 +317,8 @@
# include "alloc.h"
#endif
#ifdef _MSC_VER
#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \
defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__))
# include <malloc.h>
#endif
@ -578,6 +590,13 @@
# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
#endif
/* Will be enabled in libpng-1.2.0 */
/*
#ifndef PNG_NO_ERROR_NUMBERS
#define PNG_ERROR_NUMBERS_SUPPORTED
#endif
*/
#ifndef PNG_NO_WRITE_FLUSH
# define PNG_WRITE_FLUSH_SUPPORTED
#endif
@ -609,12 +628,22 @@
* png_get_x_offset_microns()
* png_get_y_offset_microns()
*/
#ifndef PNG_NO_EASY_ACCESS
#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED)
# define PNG_EASY_ACCESS_SUPPORTED
#endif
/* PNG_ASSEMBLER_CODE will be 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 */
/*
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
# ifndef PNG_ASSEMBLER_CODE_SUPPORTED
# define PNG_ASSEMBLER_CODE_SUPPORTED
# endif
# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE)
# define PNG_MMX_CODE_SUPPORTED
# endif
#endif
*/
#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE)
# if defined(PNG_USE_PNGVCRD) || defined(PNG_USE_PNGGCCRD)
# ifndef PNG_ASSEMBLER_CODE_SUPPORTED
@ -626,6 +655,13 @@
# endif
#endif
/* This will be enabled by default in libpng-1.2.0 */
/*
#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED)
# define PNG_USER_MEM_SUPPORTED
#endif
*/
/* These are currently experimental features, define them if you want */
/* very little testing */
@ -635,9 +671,6 @@
# define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
# endif
#endif
#ifndef PNG_NO_USER_MEM
# define PNG_USER_MEM_SUPPORTED
#endif
#ifndef PNG_NO_ZALLOC_ZERO
# define PNG_ZALLOC_ZERO
#endif

106
pngerror.c
View File

@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* libpng 1.0.11 - April 27, 2001
* libpng 1.0.12beta1 - May 14, 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)
@ -31,6 +31,38 @@ png_default_warning PNGARG((png_structp png_ptr,
void PNGAPI
png_error(png_structp png_ptr, png_const_charp message)
{
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
char msg[16];
if (png_ptr->flags&(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
{
int offset = 0;
if (*message == '#')
{
for (offset=1; offset<15; offset++)
if (*(message+offset) == ' ')
break;
if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
{
int i;
for (i=0; i<offset-1; i++)
msg[i]=message[i+1];
msg[i]='\0';
message=msg;
}
else
message+=offset;
}
else
{
if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT)
{
msg[0]='0';
msg[1]='\0';
message=msg;
}
}
}
#endif
if (png_ptr->error_fn != NULL)
(*(png_ptr->error_fn))(png_ptr, message);
@ -47,10 +79,22 @@ png_error(png_structp png_ptr, png_const_charp message)
void PNGAPI
png_warning(png_structp png_ptr, png_const_charp message)
{
int offset = 0;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
if (png_ptr->flags&(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))
#endif
{
if (*message == '#')
{
for (offset=1; offset<15; offset++)
if (*(message+offset) == ' ')
break;
}
}
if (png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_ptr, message);
(*(png_ptr->warning_fn))(png_ptr, (png_const_charp)(message+offset));
else
png_default_warning(png_ptr, message);
png_default_warning(png_ptr, (png_const_charp)(message+offset));
}
/* These utilities are used internally to build an error message that relates
@ -122,6 +166,27 @@ static void /* PRIVATE */
png_default_error(png_structp png_ptr, png_const_charp message)
{
#ifndef PNG_NO_CONSOLE_IO
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
if (*message == '#')
{
int offset;
char error_number[16];
for (offset=0; offset<15; offset++)
{
error_number[offset] = *(message+offset+1);
if (*(message+offset) == ' ')
break;
}
if((offset > 1) && (offset < 15))
{
error_number[offset-1]='\0';
fprintf(stderr, "libpng error no. %s: %s\n", error_number, message+offset);
}
else
fprintf(stderr, "libpng error: %s, offset=%d\n", message,offset);
}
else
#endif
fprintf(stderr, "libpng error: %s\n", message);
#else
if (message)
@ -154,7 +219,29 @@ static void /* PRIVATE */
png_default_warning(png_structp png_ptr, png_const_charp message)
{
#ifndef PNG_NO_CONSOLE_IO
fprintf(stderr, "libpng warning: %s\n", message);
# ifdef PNG_ERROR_NUMBERS_SUPPORTED
if (*message == '#')
{
int offset;
char warning_number[16];
for (offset=0; offset<15; offset++)
{
warning_number[offset]=*(message+offset+1);
if (*(message+offset) == ' ')
break;
}
if((offset > 1) && (offset < 15))
{
warning_number[offset-1]='\0';
fprintf(stderr, "libpng warning no. %s: %s\n", warning_number,
message+offset);
}
else
fprintf(stderr, "libpng warning: %s\n", message);
}
else
# endif
fprintf(stderr, "libpng warning: %s\n", message);
#else
if (message)
/* appease compiler */ ;
@ -189,4 +276,15 @@ png_get_error_ptr(png_structp png_ptr)
}
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
void
png_set_strip_error_numbers(png_structp png_ptr, png_uint_32 strip_mode)
{
if(png_ptr != NULL)
{
png_ptr->flags &=
((~(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode);
}
}
#endif

2
pnggccrd.c
View File

@ -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 1.0.11 - April 27, 2001
* libpng version 1.0.12beta1 - May 14, 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

91
pngget.c
View File

@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct
*
* libpng 1.0.11 - April 27, 2001
* libpng 1.0.12beta1 - May 14, 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)
@ -826,3 +826,92 @@ png_get_compression_buffer_size(png_structp png_ptr)
return (png_uint_32)(png_ptr? png_ptr->zbuf_size : 0L);
}
#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
/* this function was added to libpng 1.2.0 and should exist by default*/
png_uint_32 PNGAPI
png_get_asm_flags (png_structp png_ptr)
{
return (png_uint_32)(png_ptr? png_ptr->asm_flags : 0L);
}
/* this function was added to libpng 1.2.0 and should exist by default */
png_uint_32 PNGAPI
png_get_asm_flagmask (int flag_select)
{
png_uint_32 settable_asm_flags = 0;
if (flag_select & PNG_SELECT_READ)
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) */
/* this function was added to libpng 1.2.0 */
png_uint_32 PNGAPI
png_get_mmx_flagmask (int flag_select, int *compilerID)
{
png_uint_32 settable_mmx_flags = 0;
if (flag_select & PNG_SELECT_READ)
settable_mmx_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 ;
#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 */
png_byte PNGAPI
png_get_mmx_bitdepth_threshold (png_structp png_ptr)
{
return (png_byte)(png_ptr? png_ptr->mmx_bitdepth_threshold : 0);
}
/* this function was added to libpng 1.2.0 */
png_uint_32 PNGAPI
png_get_mmx_rowbytes_threshold (png_structp png_ptr)
{
return (png_uint_32)(png_ptr? png_ptr->mmx_rowbytes_threshold : 0L);
}
#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */

46
pngmem.c
View File

@ -1,7 +1,7 @@
/* pngmem.c - stub functions for memory allocation