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Imported from libpng-1.2.6beta3.tar

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This commit is contained in:
Glenn Randers-Pehrson 2004-07-17 22:45:44 -05:00
parent 761bf9f06f
commit 5b5dcf8b88
103 changed files with 3153 additions and 4254 deletions
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48
ANNOUNCE
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@ -1,53 +1,19 @@
Libpng 1.2.6beta2 - November 1, 2002
Libpng 1.2.6beta3 - July 18, 2004
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
Changes since the last public release (1.2.4):
Changes since the last public release (1.2.5):
version 1.2.4patch01 [July 20, 2002]
Revised makefile.cygwin to use DLL number 12 instead of 13.
version 1.2.5beta1 [August 6, 2002]
Added code to contrib/gregbook/readpng2.c to ignore unused chunks.
Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11)
Removed some stray *.o files from contrib/gregbook.
Changed png_error() to png_warning() about "Too much data" in pngpread.c
and about "Extra compressed data" in pngrutil.c.
Prevent png_ptr->pass from exceeding 7 in png_push_finish_row().
Updated makefile.hggcc
Updated png.c and pnggccrd.c handling of return from png_mmx_support()
version 1.2.5beta2 [August 15, 2002]
Only issue png_warning() about "Too much data" in pngpread.c when avail_in
is nonzero.
Updated makefiles to install a separate libpng.so.3 with its own rpath.
version 1.2.5rc1 and 1.0.15rc1 [August 24, 2002]
Revised makefiles to not remove previous minor versions of shared libraries.
version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002]
Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared
library loader directive.
Added missing "$OBJSDLL" line to makefile.gcmmx.
Added missing "; fi" to makefile.32sunu.
version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002]
Revised libpng-config script.
version 1.2.5 and 1.0.15 [October 3, 2002]
Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux,
and makefile.aix.
Relocated two misplaced PNGAPI lines in pngtest.c
version 1.2.6beta1 [October 22, 2002]
Commented out warning about uninitialized mmx_support in pnggccrd.c.
Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h.
Added missing backslashes in makefile.dec.
Fixed install-shared target dependency in makefile.32sunu.
Revised makefile.dec, makefile.macosx, makefile.aix, makefile sg*,
makefile.hp*, makefile.beos, makefile.*sunu (only affecting LDFLAGS
used in running pngtest).
version 1.2.6beta2 [November 1, 2002]
Added libpng-config "--ldopts" output.
Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)"
in makefiles.
Relocated two more misplaced PNGAPI lines in pngtest.c
Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams,
introduced in version 1.0.2.
Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
png-implement@ccrc.wustl.edu or to glennrp@users.sourceforge.net
Glenn R-P

62
CHANGES
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@ -1180,17 +1180,67 @@ version 1.2.5 and 1.0.15 [October 3, 2002]
version 1.2.6beta1 [October 22, 2002]
Commented out warning about uninitialized mmx_support in pnggccrd.c.
Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h.
Added missing backslashes in makefile.dec.
Fixed install-shared target dependency in makefile.32sunu.
Revised makefile.dec, makefile.macosx, makefile.aix, makefile sg*,
makefile.hp*, makefile.beos, makefile.*sunu (only affecting LDFLAGS
used in running pngtest).
Relocated two more misplaced PNGAPI lines in pngtest.c
Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams,
introduced in version 1.0.2.
Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu.
version 1.2.6beta2 [November 1, 2002]
Added libpng-config "--ldopts" output.
Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)"
in makefiles.
version 1.2.6beta3 [July 18, 2004]
Reverted makefile changes from version 1.2.6beta2 and some of the changes
from version 1.2.6beta1; these will be postponed until version 1.2.7.
Version 1.2.6 is going to be a simple bugfix release.
Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile.
Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
Added "#!/bin/sh" at the top of configure, for recognition of the
'x' flag under Cygwin (Cosmin).
Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin).
Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin).
Fixed the special memory handler for Borland C under DOS, in pngmem.c
(Cosmin).
Removed some spurious assignments in pngrutil.c (Cosmin).
Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings
on 16-bit platforms (Cosmin).
Enclosed shift op expressions in parentheses, to silence warnings (Cosmin).
Used proper type png_fixed_point, to avoid problems on 16-bit platforms,
in png_handle_sRGB() (Cosmin).
Added compression_type to png_struct, and optimized the window size
inside the deflate stream (Cosmin).
Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin).
Fixed handling of unknown chunks that come after IDAT (Cosmin).
Allowed png_error() and png_warning() to work even if png_ptr == NULL
(Cosmin).
Replaced row_info->rowbytes with row_bytes in png_write_find_filter()
(Cosmin).
? Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre).
Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded
values in png.c (Simon-Pierre, Cosmin).
Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre).
Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc
(Simon-Pierre).
Moved the definition of PNG_HEADER_VERSION_STRING near the definitions
of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin).
Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin).
Updated scripts/makefile.vc(a)win32 (Cosmin).
Updated the MSVC project (Simon-Pierre, Cosmin).
Updated the Borland C++ Builder project (Cosmin).
Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin).
Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin).
Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin).
Added extra guard around inclusion of Turbo C memory headers, in pngconf.h
(Cosmin).
Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to
projects/cbuilder5/ (Cosmin).
Moved projects/visualc6/png32ms.def to scripts/pngw32.def,
and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin).
Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin).
Updated contrib/visupng/VisualPng.dsp (Cosmin).
Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin).
Added a separate distribution with "configure" and supporting files (Junichi).
Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
png-implement@ccrc.wustl.edu or to glennrp@users.sourceforge.net
Glenn R-P

17
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.2.6beta2 - November 1, 2002
Installing libpng version 1.2.6beta3 - July 18, 2004
Before installing libpng, you must first install zlib. zlib
can usually be found wherever you got libpng. zlib can be
@ -10,8 +10,8 @@ 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-1.2.6beta2" or "lpng109" and "zlib-1.1.4"
or "zlib114") so that you have directories called "zlib" and "libpng".
might be called "libpng-1.2.6beta3" 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:
@ -35,7 +35,6 @@ Your directory structure should look like this:
wince.txt
scripts
makefile.*
libpng*.in
pngtest.png
etc.
zlib
@ -65,8 +64,8 @@ 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 libpng12.so.0.1.2.6beta2)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.6beta2,
makefile.linux => Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.6beta3)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.6beta3,
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
@ -87,10 +86,10 @@ include
makefile.ne0bsd => NetBSD/cc makefile, uses PNGGCCRD, makes libpng0.so
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng12.so.0.1.2.6beta2)
makefile.sggcc => Silicon Graphics (gcc, creates libpng12.so.0.1.2.6beta3)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng12.so.0.1.2.6beta2)
makefile.so9 => Solaris 9 makefile (gcc, creates libpng12.so.0.1.2.6beta2)
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng12.so.0.1.2.6beta3)
makefile.so9 => Solaris 9 makefile (gcc, creates libpng12.so.0.1.2.6beta3)
makefile.32sunu => Sun Ultra 32-bit makefile
makefile.64sunu => Sun Ultra 64-bit makefile
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc

2
KNOWNBUG
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@ -1,5 +1,5 @@
Known bugs in libpng version 1.2.6beta2
Known bugs in libpng version 1.2.6beta3
1. April 22, 2001: pnggccrd.c has been reported to crash on NetBSD when
reading interlaced PNG files, when assembler code is enabled but running

8
LICENSE
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@ -8,8 +8,8 @@ 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 1.2.6beta2, November 1, 2002, are
Copyright (c) 2000-2002 Glenn Randers-Pehrson
libpng versions 1.0.7, July 1, 2000, through 1.2.6beta3, July 18, 2004, are
Copyright (c) 2000-2004 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
@ -98,5 +98,5 @@ Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
randeg@alum.rpi.edu
November 1, 2002
glennrp@users.sourceforge.net
July 18, 2004

30
README
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@ -1,11 +1,11 @@
README for libpng 1.2.6beta2 - November 1, 2002 (shared library 12.0)
README for libpng version 1.2.6beta3 - July 18, 2004 (shared library 12.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
Libpng comes in two distribution formats. Get libpng-*.tar.gz if you
want UNIX-style line endings in the text files, or lpng*.zip if you want
DOS-style line endings.
Libpng comes in several distribution formats. Get libpng-*.tar.gz
or libpng-*.tar.bz2 if you want UNIX-style line endings in the text
files, or lpng*.zip if you want DOS-style line endings.
Version 0.89 was the first official release of libpng. Don't let the
fact that it's the first release fool you. The libpng library has been in
@ -104,7 +104,7 @@ fix. Please mention "libpng" somewhere in the subject line. Thanks.
This release was created and will be supported by myself (of course
based in a large way on Guy's and Andreas' earlier work), and the PNG group.
randeg@alum.rpi.edu
glennrp@users.sourceforge.net
png-implement@ccrc.wustl.edu
You can't reach Guy, the original libpng author, at the addresses
@ -187,9 +187,9 @@ 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 libpng12.so.0.1.2.6beta2)
(gcc, creates libpng12.so.0.1.2.5)
makefile.gcmmx => Linux/ELF makefile (gcc, creates
libpng12.so.0.1.2.6beta2, uses assembler code
libpng12.so.0.1.2.5, 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
@ -210,12 +210,12 @@ Files in this distribution:
makefile.ne0bsd => NetBSD/cc makefile, PNGGCCRD, makes libpng0.so
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng12.so.0.1.2.6beta2)
makefile.sggcc => Silicon Graphics (gcc, creates libpng12.so.0.1.2.5)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng12.so.0.1.2.6beta2)
(gcc, creates libpng12.so.0.1.2.5)
makefile.so9 => Solaris 9 makefile
(gcc, creates libpng12.so.0.1.2.6beta2)
(gcc, creates libpng12.so.0.1.2.5)
makefile.32sunu => Sun Ultra 32-bit makefile
makefile.64sunu => Sun Ultra 64-bit makefile
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
@ -244,6 +244,16 @@ Files in this distribution:
makevms.com => VMS build script
pngdef.pas => Defines for a png32bd.dll with Borland C++ 4.5
SCOPTIONS.ppc => Used with smakefile.ppc
mangle => Directory containing scripts to build libpng12m.so:
mangle.in => Function-decoration macros added to png.h by the
makefiles.
makefile.linux => Linux/ELF makefile
(gcc, creates libpng12m.so.0.1.2.5)
makefile.gcmmx => Linux/ELF makefile (gcc, creates
libpng12.so.0m.1.2.5, uses assembler code
tuned for Intel MMX platform)
makefile.sgi => Silicon Graphics (cc, creates libpng12m.so)
makefile.sggcc => Silicon Graphics (gcc, creates libpng12m.so)
Good luck, and happy coding.

4
Y2KINFO
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@ -1,13 +1,13 @@
Y2K compliance in libpng:
=========================
November 1, 2002
July 18, 2004
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 1.2.6beta2 are Y2K compliant. It is my belief that earlier
upward through 1.2.6beta3 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

13
configure vendored
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@ -1,6 +1,13 @@
#!/bin/sh
echo "
There is no \"configure\" script for Libpng-1.2.6beta2. Instead, please
copy the appropriate makefile for your system from the \"scripts\"
directory. Read the INSTALL file for more details.
There is no \"configure\" script in this distribution of
libpng-1.2.6beta3.
Instead, please copy the appropriate makefile for your system from the
\"scripts\" directory. Read the INSTALL file for more details.
Update, July 2004: you can get a "configure" based distribution
from the libpng distribution sites. Download the file
libpng-1.2.6beta3-config.tar.gz
"

22
contrib/msvctest/README.txt
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@ -1,22 +0,0 @@
Microsoft Developer Studio Build File, Format Version 6.00 for
msvctest
Assumes that libpng DLLs and LIBs are in ..\..\projects\msvc\win32\libpng
Assumes that zlib DLLs and LIBs are in ..\..\projects\msvc\win32\zlib
To build:
1) On the main menu Select "Build|Set Active configuration".
Choose the configuration that corresponds to the library you want to test.
This library must have been built using the libpng MS project located in
the "mscv" subdirectory.
2) Select "Build|Clean"
3) Select "Build|Rebuild All"
4) The test results should appear in the "Build" pane of the Output Window.
Simon-Pierre Cadieux
Methodex Computer Systems Inc.

247
contrib/msvctest/msvctest.dsp
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@ -1,247 +0,0 @@
# Microsoft Developer Studio Project File - Name="msvctest" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86) Console Application" 0x0103
CFG=msvctest - Win32 Debug DLL
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
!MESSAGE use the Export Makefile command and run
!MESSAGE
!MESSAGE NMAKE /f "msvctest.mak".
!MESSAGE
!MESSAGE You can specify a configuration when running NMAKE
!MESSAGE by defining the macro CFG on the command line. For example:
!MESSAGE
!MESSAGE NMAKE /f "msvctest.mak" CFG="msvctest - Win32 Debug DLL"
!MESSAGE
!MESSAGE Possible choices for configuration are:
!MESSAGE
!MESSAGE "msvctest - Win32 DLL" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 Debug DLL" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 ASM DLL" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 Debug ASM DLL" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 LIB" (based on "Win32 (x86) Console Application")
!MESSAGE "msvctest - Win32 Debug LIB" (based on "Win32 (x86) Console Application")
!MESSAGE
# Begin Project
# PROP AllowPerConfigDependencies 0
# PROP Scc_ProjName ""
# PROP Scc_LocalPath ""
CPP=cl.exe
RSC=rc.exe
!IF "$(CFG)" == "msvctest - Win32 DLL"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "dll"
# PROP BASE Intermediate_Dir "dll"
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
# PROP Use_Debug_Libraries 0
# PROP Output_Dir "dll"
# PROP Intermediate_Dir "dll"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /O1 /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /FD /c
# ADD CPP /nologo /MD /W3 /O1 /I "..\..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /D "PNG_DLL" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
# ADD BASE RSC /l 0x409 /d "NDEBUG"
# ADD RSC /l 0x409 /d "NDEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 /nologo /subsystem:console /machine:I386
# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll\libpng13.lib /nologo /subsystem:console /machine:I386
# Begin Special Build Tool
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# End Special Build Tool
!ELSEIF "$(CFG)" == "msvctest - Win32 Debug DLL"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 1
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# PROP Use_Debug_Libraries 1
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# PROP Ignore_Export_Lib 0
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# ADD BASE CPP /nologo /W3 /Zi /Od /D "_DEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
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# ADD BASE RSC /l 0x409 /d "_DEBUG"
# ADD RSC /l 0x409 /d "_DEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# 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\libpng13d.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# Begin Special Build Tool
OutDir=.\dll_dbg
SOURCE="$(InputPath)"
PostBuild_Desc=[Run Test]
PostBuild_Cmds=set path=..\..\projects\msvc\win32\libpng\dll_dbg;..\..\projects\msvc\win32\zlib\dll_dbg; $(outdir)\msvctest.exe ..\..\pngtest.png
# End Special Build Tool
!ELSEIF "$(CFG)" == "msvctest - Win32 ASM DLL"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "dll_asm"
# PROP BASE Intermediate_Dir "dll_asm"
# PROP BASE Target_Dir ""
# PROP Use_MFC 0
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# PROP Output_Dir "dll_asm"
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# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /O1 /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /FD /c
# ADD CPP /nologo /MD /W3 /O1 /I "..\..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /D "PNG_DLL" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
# ADD BASE RSC /l 0x409 /d "NDEBUG"
# ADD RSC /l 0x409 /d "NDEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 /nologo /subsystem:console /machine:I386
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SOURCE="$(InputPath)"
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# End Special Build Tool
!ELSEIF "$(CFG)" == "msvctest - Win32 Debug ASM DLL"
# PROP BASE Use_MFC 0
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# ADD BASE CPP /nologo /W3 /Zi /Od /D "_DEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
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# ADD BASE RSC /l 0x409 /d "_DEBUG"
# ADD RSC /l 0x409 /d "_DEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
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LINK32=link.exe
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# Begin Special Build Tool
OutDir=.\dll_dbga
SOURCE="$(InputPath)"
PostBuild_Desc=[Run Test]
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# End Special Build Tool
!ELSEIF "$(CFG)" == "msvctest - Win32 LIB"
# PROP BASE Use_MFC 0
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115
contrib/visupng/cexcept.h
View File

@ -1,17 +1,20 @@
/*===
cexcept.h 1.0.0 (2000-Jun-21-Wed)
cexcept.h 2.0.0 (2001-Jul-12-Thu)
Adam M. Costello <amc@cs.berkeley.edu>
An interface for exception-handling in ANSI C, developed jointly with
Cosmin Truta <cosmin@cs.toronto.edu>.
An interface for exception-handling in ANSI C (C89 and subsequent ISO
standards), developed jointly with Cosmin Truta <cosmin@cs.toronto.edu>.
Copyright (c) 2000 Adam M. Costello and Cosmin Truta. Everyone
Copyright (c) 2001 Adam M. Costello and Cosmin Truta. Everyone
is hereby granted permission to do whatever they like with this
file, provided that if they modify it they take reasonable steps to
avoid confusing or misleading people about the authors, version,
and terms of use of the derived file. The copyright holders make
no guarantees about the correctness of this file, and are not
responsible for any damage resulting from its use.
no guarantees regarding this file, and are not responsible for any
damage resulting from its use.
Only user-defined exceptions are supported, not "real" exceptions like
division by zero or memory segmentation violations.
If this interface is used by multiple .c files, they shouldn't include
this header file directly. Instead, create a wrapper header file that
@ -37,6 +40,10 @@ define_exception_type(type_name);
struct exception { int code; const char *msg; };
define_exception_type(struct exception);
Because throwing an exception causes the object to be copied (not
just once, but twice), programmers may wish to consider size when
choosing the exception type.
struct exception_context;
@ -62,7 +69,7 @@ struct exception_context *the_exception_context;
application may declare a variable of this name anywhere it likes
(inside a function, in a parameter list, or externally), and may
use whatever storage class specifiers (static, extern, etc) or type
qualifiers (const, volatile) it likes. Examples:
qualifiers (const, volatile, etc) it likes. Examples:
static struct exception_context
* const the_exception_context = &foo;
@ -107,15 +114,15 @@ Catch (expression) statement
confusion with the C++ keywords, which have subtly different
semantics.
A Try/Catch statement has a syntax similar to an if/else
statement, except that the parenthesized expression goes after
the second keyword rather than the first. As with if/else,
there are two clauses, each of which may be a simple statement
ending with a semicolon or a brace-enclosed compound statement.
But whereas the else clause is optional, the Catch clause is
required. The expression must be a modifiable lvalue (something
capable of being assigned to) of the exact same type passed to
define_exception_type().
A Try/Catch statement has a syntax similar to an if/else statement,
except that the parenthesized expression goes after the second
keyword rather than the first. As with if/else, there are two
clauses, each of which may be a simple statement ending with a
semicolon or a brace-enclosed compound statement. But whereas
the else clause is optional, the Catch clause is required. The
expression must be a modifiable lvalue (something capable of being
assigned to) of the same type (disregarding type qualifiers) that
was passed to define_exception_type().
If a Throw that uses the same exception context as the Try/Catch is
executed within the Try clause (typically within a function called
@ -125,9 +132,8 @@ Catch (expression) statement
such Throw is executed, then the assignment is not performed, and
the Catch clause is not executed.
Regardless of whether an exception is caught, the expression is
always evaluated exactly once, which is significant if it has side
effects, for example:
The expression is not evaluated unless and until the exception is
caught, which is significant if it has side effects, for example:
Try foo();
Catch (p[++i].e) { ... }
@ -183,62 +189,55 @@ is subject to change.
#include <setjmp.h>
#define define_exception_type(etype) \
struct exception__state { \
etype *exception; \
jmp_buf env; \
struct exception_context { \
jmp_buf *penv; \
int caught; \
volatile struct { etype etmp; } v; \
}
struct exception_context { \
struct exception__state *last; \
int caught; \
};
/* etmp must be volatile because the application might use automatic */
/* storage for the_exception_context, and etmp is modified between */
/* the calls to setjmp() and longjmp(). A wrapper struct is used to */
/* avoid warnings about a duplicate volatile qualifier in case etype */
/* already includes it. */
#define init_exception_context(ec) ((void)((ec)->last = 0))
#define Catch(e) exception__catch(&(e))
#define Catch_anonymous exception__catch(0)
#define init_exception_context(ec) ((void)((ec)->penv = 0))
#define Try \
{ \
struct exception__state *exception__p, exception__s; \
int exception__i; \
exception__p = the_exception_context->last; \
the_exception_context->last = &exception__s; \
for (exception__i = 0; ; exception__i = 1) \
if (exception__i) { \
if (setjmp(exception__s.env) == 0) { \
if (&exception__s)
jmp_buf *exception__prev, exception__env; \
exception__prev = the_exception_context->penv; \
the_exception_context->penv = &exception__env; \
if (setjmp(exception__env) == 0) { \
if (&exception__prev)
#define exception__catch(e_addr) \
else { } \
the_exception_context->caught = 0; \
} \
else the_exception_context->caught = 1; \
the_exception_context->last = exception__p; \
break; \
} \
else exception__s.exception = e_addr; \
#define exception__catch(action) \
else { } \
the_exception_context->caught = 0; \
} \
else { \
the_exception_context->caught = 1; \
} \
the_exception_context->penv = exception__prev; \
} \
if (!the_exception_context->caught) { } \
if (!the_exception_context->caught || action) { } \
else
#define Catch(e) exception__catch(((e) = the_exception_context->v.etmp, 0))
#define Catch_anonymous exception__catch(0)
/* Try ends with if(), and Catch begins and ends with else. This */
/* ensures that the Try/Catch syntax is really the same as the */
/* if/else syntax. */
/* */
/* We use &exception__s instead of 1 to appease compilers that */
/* We use &exception__prev instead of 1 to appease compilers that */
/* warn about constant expressions inside if(). Most compilers */
/* should still recognize that &exception__s is never zero and avoid */
/* generating test code. */
/* */
/* We use the variable exception__i to start the loop at the bottom, */
/* rather than jump into the loop using a switch statement, to */
/* appease compilers that warn about jumping into loops. */
/* should still recognize that &exception__prev is never zero and */
/* avoid generating test code. */
#define Throw \
for (;; longjmp(the_exception_context->last->env, 1)) \
if (the_exception_context->last->exception) \
*the_exception_context->last->exception =
for (;; longjmp(*the_exception_context->penv, 1)) \
the_exception_context->v.etmp =
#endif /* CEXCEPT_H */

89
libpng.3
View File

@ -1,6 +1,6 @@
.TH LIBPNG 3 "November 1, 2002"
.TH LIBPNG 3 "July 18, 2004"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta2
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta3
.SH SYNOPSIS
\fI\fB
@ -100,10 +100,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta2
\fI\fB
\fBpng_uint_32 png_get_asm_flags (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_byte png_get_bit_depth (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
\fI\fB
@ -196,18 +192,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta2
\fI\fB
\fBpng_byte png_get_mmx_bitdepth_threshold (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_mmx_flagmask (int \fP\fIflag_select\fP\fB, int \fI*compilerID\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_mmx_rowbytes_threshold (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*offset_x\fP\fB, png_uint_32 \fP\fI*offset_y\fP\fB, int \fI*unit_type\fP\fB);\fP
\fI\fB
@ -342,10 +326,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta2
\fI\fB
\fBpng_voidp png_malloc_warn (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
\fI\fB
\fBvoidp png_memcpy (png_voidp \fP\fIs1\fP\fB, png_voidp \fP\fIs2\fP\fB, png_size_t \fIsize\fP\fB);\fP
\fI\fB
@ -362,10 +342,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta2
\fI\fB
\fBint png_mmx_support \fI(void\fP\fB);\fP
\fI\fB
\fBDEPRECATED: void png_permit_empty_plte (png_structp \fP\fIpng_ptr\fP\fB, int \fIempty_plte_permitted\fP\fB);\fP
\fI\fB
@ -418,10 +394,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta2
\fI\fB
\fBpng_set_asm_flags (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIasm_flags\fP\fB);\fP
\fI\fB
\fBvoid png_set_background (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, double \fIbackground_gamma\fP\fB);\fP
\fI\fB
@ -550,10 +522,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta2
\fI\fB
\fBpng_set_mmx_thresholds (png_structp \fP\fIpng_ptr\fP\fB, png_byte \fP\fImmx_bitdepth_threshold\fP\fB, png_uint_32 \fImmx_rowbytes_threshold\fP\fB);\fP
\fI\fB
\fBvoid png_set_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIoffset_x\fP\fB, png_uint_32 \fP\fIoffset_y\fP\fB, int \fIunit_type\fP\fB);\fP
\fI\fB
@ -646,12 +614,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta2
\fI\fB
\fBvoid png_set_strip_error_numbers (png_structp \fIpng_ptr,
\fBpng_uint_32 \fIstrip_mode\fP\fB);\fP
\fI\fB
\fBvoid png_set_swap (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
@ -780,6 +742,14 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.2.6beta2
\fI\fB
\fBvoidpf png_zalloc (voidpf \fP\fIpng_ptr\fP\fB, uInt \fP\fIitems\fP\fB, uInt \fIsize\fP\fB);\fP
\fI\fB
\fBvoid png_zfree (voidpf \fP\fIpng_ptr\fP\fB, voidpf \fIptr\fP\fB);\fP
\fI\fB
.SH DESCRIPTION
The
.I libpng
@ -791,10 +761,10 @@ 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 1.2.6beta2 - November 1, 2002
libpng version 1.2.6beta3 - July 18, 2004
Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
Copyright (c) 1998-2002 Glenn Randers-Pehrson
<glennrp@users.sourceforge.net>
Copyright (c) 1998-2004 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
@ -3101,7 +3071,6 @@ functions must be modified in the library at compile time. If you prefer
to use a different method of allocating and freeing data, you can use
png_create_read_struct_2() or png_create_write_struct_2() to register
your own functions as described above.
These functions also provide a void pointer that can be retrieved via
mem_ptr=png_get_mem_ptr(png_ptr);
@ -3564,8 +3533,7 @@ For more extensive examples of runtime querying, enabling and disabling
of optimized features, see contrib/gregbook/readpng2.c in the libpng
source-code distribution.
.SH VII. MNG support
.SH VI. MNG support
The MNG specification (available at http://www.libpng.org/pub/mng) allows
certain extensions to PNG for PNG images that are embedded in MNG datastreams.
@ -3578,7 +3546,7 @@ png_permit_mng_features() function:
PNG_FLAG_MNG_EMPTY_PLTE
PNG_FLAG_MNG_FILTER_64
PNG_ALL_MNG_FEATURES
feature_set is a png_32_uint that is the logical AND of
feature_set is a png_uint_32 that is the logical AND of
your mask with the set of MNG features that is
supported by the version of libpng that you are using.
@ -3590,7 +3558,7 @@ or any other MNG chunks; your application must provide its own support for
them. You may wish to consider using libmng (available at
http://www.libmng.com) instead.
.SH VIII. Changes to Libpng from version 0.88
.SH VII. Changes to Libpng from version 0.88
It should be noted that versions of libpng later than 0.96 are not
distributed by the original libpng author, Guy Schalnat, nor by
@ -3639,15 +3607,15 @@ application:
png_uint_32 application_vn = PNG_LIBPNG_VER;
.SH IX. Y2K Compliance in libpng
.SH VII. Y2K Compliance in libpng
November 1, 2002
July 18, 2004
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 1.2.6beta2 are Y2K compliant. It is my belief that earlier
upward through 1.2.6beta3 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
@ -3782,11 +3750,8 @@ the first widely used release:
1.2.4rc1 13 10204 12.so.0.1.2.4rc1
1.0.14 10 10014 10.so.0.1.0.14
1.2.4 13 10204 12.so.0.1.2.4
1.0.15rc1-3 10 10015 10.so.0.1.0.15rc1-3
1.2.5rc1-3 13 10205 12.so.0.1.2.5rc1-3
1.0.15 10 10015 10.so.0.1.0.15
1.2.5 13 10205 12.so.0.1.2.5
1.2.6beta1-2 13 10206 12.so.0.1.2.6beta1-2
1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2
1.0.15rc1 10 10015 10.so.0.1.0.15rc1
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
@ -3836,7 +3801,7 @@ and this library, the specification takes precedence.
.SH AUTHORS
This man page: Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
<glennrp@users.sourceforge.net>
The contributing authors would like to thank all those who helped
with testing, bug fixes, and patience. This wouldn't have been
@ -3844,9 +3809,9 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.2.6beta2 - November 1, 2002:
Libpng version 1.2.6beta3 - July 18, 2004:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).
Currently maintained by Glenn Randers-Pehrson (glennrp@users.sourceforge.net).
Supported by the PNG development group
.br
@ -3861,7 +3826,7 @@ 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 1.2.6beta2, November 1, 2002, are
libpng versions 1.0.7, July 1, 2000, through 1.2.6beta3, July 18, 2004, 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
@ -3952,8 +3917,8 @@ Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
randeg@alum.rpi.edu
November 1, 2002
glennrp@users.sourceforge.net
July 18, 2004
.\" end of man page

20
libpng.txt
View File

@ -1,9 +1,9 @@
libpng.txt - A description on how to use and modify libpng
libpng version 1.2.6beta2 - November 1, 2002
libpng version 1.2.6beta3 - July 18, 2004
Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu>
Copyright (c) 1998-2002 Glenn Randers-Pehrson
<glennrp@users.sourceforge.net>
Copyright (c) 1998-2004 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
@ -2310,7 +2310,6 @@ functions must be modified in the library at compile time. If you prefer
to use a different method of allocating and freeing data, you can use
png_create_read_struct_2() or png_create_write_struct_2() to register
your own functions as described above.
These functions also provide a void pointer that can be retrieved via
mem_ptr=png_get_mem_ptr(png_ptr);
@ -2773,8 +2772,7 @@ For more extensive examples of runtime querying, enabling and disabling
of optimized features, see contrib/gregbook/readpng2.c in the libpng
source-code distribution.
VII. MNG support
VI. MNG support
The MNG specification (available at http://www.libpng.org/pub/mng) allows
certain extensions to PNG for PNG images that are embedded in MNG datastreams.
@ -2787,7 +2785,7 @@ png_permit_mng_features() function:
PNG_FLAG_MNG_EMPTY_PLTE
PNG_FLAG_MNG_FILTER_64
PNG_ALL_MNG_FEATURES
feature_set is a png_32_uint that is the logical AND of
feature_set is a png_uint_32 that is the logical AND of
your mask with the set of MNG features that is
supported by the version of libpng that you are using.
@ -2799,7 +2797,7 @@ or any other MNG chunks; your application must provide its own support for
them. You may wish to consider using libmng (available at
http://www.libmng.com) instead.
VIII. Changes to Libpng from version 0.88
VII. Changes to Libpng from version 0.88
It should be noted that versions of libpng later than 0.96 are not
distributed by the original libpng author, Guy Schalnat, nor by
@ -2848,15 +2846,15 @@ application:
png_uint_32 application_vn = PNG_LIBPNG_VER;
IX. Y2K Compliance in libpng
VII. Y2K Compliance in libpng
November 1, 2002
July 18, 2004
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 1.2.6beta2 are Y2K compliant. It is my belief that earlier
upward through 1.2.6beta3 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

808
libpngpf.3
View File

File diff suppressed because it is too large Load Diff

2
png.5
View File

@ -1,4 +1,4 @@
.TH PNG 5 "November 1, 2002"
.TH PNG 5 "July 18, 2004"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION

45
png.c