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* [lpng] Adjustment: Update libpng to version 1.6.37.

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This commit is contained in:
Robert MacGregor 2021-10-12 22:04:36 -04:00
parent c0ff69a2e6
commit 2f3215c4fb
475 changed files with 110673 additions and 2682 deletions
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# Locations of zlib and (if required) awk (change as required:)
set zlib=..\..\..\zlib
set awk=
#
@if not exist pngconfig.dfa $(MAKE) $(__MAKEOPTS__) -f pngconfig.mak defaults
@if exist config.inf type config.inf
@echo Checking for the libpng configuration file pnglibconf.h
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# This is an OpenWatcom make file which builds pnglibconf.h - the libpng
# configuration header. You can ignore this file if you don't need to
# configure libpng; a default configuration will be built.
#
# For more information build libpng.wpj under the IDE and then read the
# generated files:
#
# config.inf: Basic configuration information for a standard build.
# pngconfig.dfa: Advanced configuration for non-standard libpng builds.
#
DELETE=rm -f
ECHO=echo
COPY=copy
#
# If your configuration needs to test compiler flags when building
# pnglibconf.h you may need to override the following on the wmake command
# line:
CFLAGS=
CC=wcl386
CPP=$(CC) -pw0
#
# Read awk from the environment if set, else it can be set on the command
# line (the default approach is to set the %awk% environment variable in the
# IDE libpng.wpj 'before' rule - this setting is local.)
!ifdef %awk
AWK=$(%awk)
!endif
#
# pnglibconf.h must exist in the source directory, this is the final rule
# which copies the local built version (and this is the default target for
# this makefile.)
..\..\pnglibconf.h: pnglibconf.h
$(COPY) pnglibconf.h $@
!ifdef AWK
# CPPFLAGS should contain the options to control the result,
# but DEFS and CFLAGS are also supported here, override
# as appropriate
DFNFLAGS = $(DEFS) $(CPPFLAGS) $(CFLAGS)
pnglibconf.h: pnglibconf.dfn
$(DELETE) $@ dfn.c dfn1.out dfn2.out
$(ECHO) $#include "pnglibconf.dfn" >dfn.c
$(CPP) $(DFNFLAGS) dfn.c >dfn1.out
$(AWK) -f << dfn1.out >dfn2.out
/^.*PNG_DEFN_MAGIC-.*-PNG_DEFN_END.*$$/{
sub(/^.*PNG_DEFN_MAGIC-/, "")
sub(/ *-PNG_DEFN_END.*$$/, "")
gsub(/ *@@@ */, "")
print
}
<<
$(COPY) dfn2.out $@
@type << >pngconfig.inf
This is a locally configurable build of libpng.lib; for configuration
instructions consult and edit projects/openwatcom/pngconfig.dfa
<<
$(DELETE) dfn.c dfn1.out dfn2.out
pnglibconf.dfn: ..\..\scripts\pnglibconf.dfa ..\..\scripts\options.awk pngconfig.dfa ..\..\pngconf.h
$(DELETE) $@ dfn1.out dfn2.out
$(AWK) -f ..\..\scripts\options.awk out=dfn1.out version=search ..\..\pngconf.h ..\..\scripts\pnglibconf.dfa pngconfig.dfa $(DFA_XTRA) 1>&2
$(AWK) -f ..\..\scripts\options.awk out=dfn2.out dfn1.out 1>&2
$(COPY) dfn2.out $@
$(DELETE) dfn1.out dfn2.out
!else
# The following lines are used to copy scripts\pnglibconf.h.prebuilt and make
# the required change to the calling convention.
#
# By default libpng is built to use the __cdecl calling convention on
# Windows. This gives compatibility with MSVC and GCC. Unfortunately it
# does not work with OpenWatcom because OpenWatcom implements longjmp using
# the __watcall convention (compared with both MSVC and GCC which use __cdecl
# for library functions.)
#
# Thus the default must be changed to build on OpenWatcom and, once changed,
# the result will not be compatible with applications built using other
# compilers (in fact attempts to build will fail at compile time.)
#
pnglibconf.h: ..\..\scripts\pnglibconf.h.prebuilt .existsonly
@$(ECHO) .
@$(ECHO) .
@$(ECHO) $$(AWK) NOT AVAILABLE: COPYING scripts\pnglibconf.h.prebuilt
@$(ECHO) .
@$(ECHO) .
vi -q -k ":1,$$s/PNG_API_RULE 0$$/PNG_API_RULE 2/\n:w! $@\n:q!\n" ..\..\scripts\pnglibconf.h.prebuilt
@$(ECHO) .
@$(ECHO) .
@$(ECHO) YOU HAVE A DEFAULT CONFIGURATION BECAUSE YOU DO NOT HAVE AWK!
@$(ECHO) .
@$(ECHO) .
@type << >pngconfig.inf
This is the default configuration of libpng.lib, if you wish to
change the configuration please consult the instructions in
projects/owatcom/pngconfig.dfa.
<<
!endif
# Make the default files
defaults: .symbolic
@$(COPY) << config.inf
$# The libpng project is incompletely configured. To complete configuration
$# please complete the following steps:
$#
$# 1) Edit the 'before' rule of libpng.wpj (from the IDE) to define the
$# locations of the zlib include file zlib.h and the built zlib library,
$# zlib.lib.
$#
$# 2) If you want to change libpng to a non-standard configuration also
$# change the definition of 'awk' in the before rule to the name of your
$# awk command. For more instructions on configuration read
$# pngconfig.dfa.
$#
$# 3) Delete this file (config.inf).
<<
@$(COPY) << pngconfig.dfa
$# pngconfig.dfa: this file contains configuration options for libpng.
$# If empty the standard configuration will be built. For this file to be
$# used a working version of the program 'awk' is required and the program
$# must be identified in the 'before' rule of the project.
$#
$# If you don't already have 'awk', or the version of awk you have seems not
$# to work, download Brian Kernighan's awk (Brian Kernighan is the author of
$# awk.) You can find source code and a built executable (called awk95.exe)
$# here:
$#
$# https://www.cs.princeton.edu/~bwk/btl.mirror/
$#
$# The executable works just fine.
$#
$# If build issues errors after a change to pngconfig.dfa you have entered
$# inconsistent feature requests, or even malformed requests, in
$# pngconfig.dfa. The error messages from awk should be comprehensible, but
$# if not simply go back to the start (nothing but comments in this file) and
$# enter configuration lines one by one until one produces an error. (Or, of
$# course, do the standard binary chop.)
$#
$# You need to rebuild everything after a change to pnglibconf.dfa - i.e. you
$# must do Actions/Mark All Targets for Remake. This is because the compiler
$# generated dependency information (as of OpenWatcom 1.9) does not record the
$# dependency on pnglibconf.h correctly.
$#
$# If awk isn't set then this file is bypassed. If you just want the standard
$# configuration it is automatically produced from the distributed version
$# (scripts\pnglibconf.h.prebuilt) by editing PNG_API_RULE to 2 (to force use
$# of the OpenWatcom library calling convention.)
$#
<<
clean:: .symbolic
$(DELETE) ..\..\pnglibconf.h pnglibconf.* dfn.c *.out pngconfig.inf
$(DELETE) *.obj *.mbr *.sym *.err *.pch libpng.mk
$(DELETE) libpng.lib libpng.lbr libpng.lb1 libpng.cbr libpng.mk1
$(DELETE) pngtest.exe pngtest.map pngtest.lk1 pngtest.mk1
$(DELETE) pngvalid.exe pngvalid.map pngvalid.lk1 pngvalid.mk1
distclean:: clean .symbolic
$(DELETE) zlib.inf awk.inf config.inf pngconfig.dfa

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# Prevent "Cannot find missing dependency..." warnings while compiling
# pngwin.rc (PRJ0041).
all: $(IntDir)\alloc.h \
$(IntDir)\fp.h \
$(IntDir)\m68881.h \
$(IntDir)\mem.h \
$(IntDir)\pngusr.h \
$(IntDir)\strings.h \
$(IntDir)\unistd.h \
$(IntDir)\unixio.h
$(IntDir)\alloc.h \
$(IntDir)\fp.h \
$(IntDir)\m68881.h \
$(IntDir)\mem.h \
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Microsoft Developer Studio Project File, Format Version 7.10 for libpng.
Copyright (C) 2004 Simon-Pierre Cadieux.
This code is released under the libpng license.
For conditions of distribution and use, see copyright notice in png.h
NOTE: This project will be removed from libpng-1.5.0. It has
been replaced with the "vstudio" project.
Assumptions:
* The libpng source files are in ..\..
* The zlib source files are in ..\..\..\zlib
* The zlib project file is in . /* Warning: This is until the zlib project
files get integrated into the next zlib release. The final zlib project
directory will then be ..\..\..\zlib\projects\visualc71. */
To use:
1) On the main menu, select "File | Open Solution".
Open "libpng.sln".
2) Display the Solution Explorer view (Ctrl+Alt+L)
3) Set one of the project as the StartUp project. If you just want to build the
binaries set "libpng" as the startup project (Select "libpng" tree view
item + Project | Set as StartUp project). If you want to build and test the
binaries set it to "pngtest" (Select "pngtest" tree view item +
Project | Set as StartUp project)
4) Select "Build | Configuration Manager...".
Choose the configuration you wish to build.
5) Select "Build | Clean Solution".
6) Select "Build | Build Solution (Ctrl-Shift-B)"
This project builds the libpng binaries as follows:
* Win32_DLL_Release\libpng16.dll DLL build
* Win32_DLL_Debug\libpng16d.dll DLL build (debug version)
* Win32_DLL_VB\libpng16vb.dll DLL build for Visual Basic, using stdcall
* Win32_LIB_Release\libpng.lib static build
* Win32_LIB_Debug\libpngd.lib static build (debug version)
Notes:
If you change anything in the source files, or select different compiler
settings, please change the DLL name to something different than any of
the above names. Also, make sure that in your "pngusr.h" you define
PNG_USER_PRIVATEBUILD and PNG_USER_DLLFNAME_POSTFIX according to the
instructions provided in "pngconf.h".
All DLLs built by this project use the Microsoft dynamic C runtime library
MSVCR71.DLL (MSVCR71D.DLL for debug versions). If you distribute any of the
above mentioned libraries you may have to include this DLL in your package.
For a list of files that are redistributable in Visual Studio see
$(VCINSTALLDIR)\redist.txt.

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/* WARNING: This file was put in the LibPNG distribution for convenience only.
It is expected to be part of the next zlib release under
"projects\visualc71\README.txt." */
Microsoft Developer Studio Project File, Format Version 7.10 for zlib.
Copyright (C) 2004 Simon-Pierre Cadieux.
Copyright (C) 2004 Cosmin Truta.
This code is released under the libpng license.
For conditions of distribution and use, see copyright notice in zlib.h.
NOTE: This project will be removed from libpng-1.5.0. It has
been replaced with the "vstudio" project.
To use:
1) On the main menu, select "File | Open Solution".
Open "zlib.sln".
2) Display the Solution Explorer view (Ctrl+Alt+L)
3) Set one of the project as the StartUp project. If you just want to build the
binaries set "zlib" as the startup project (Select "zlib" tree view item +
Project | Set as StartUp project). If you want to build and test the
binaries set it to "example" (Select "example" tree view item + Project |
Set as StartUp project), If you want to build the minigzip utility set it to
"minigzip" (Select "minigzip" tree view item + Project | Set as StartUp
project
4) Select "Build | Configuration Manager...".
Choose the configuration you wish to build.
5) Select "Build | Clean Solution".
6) Select "Build | Build Solution (Ctrl-Shift-B)"
This project builds the zlib binaries as follows:
* Win32_DLL_Release\zlib1.dll DLL build
* Win32_DLL_Debug\zlib1d.dll DLL build (debug version)
* Win32_LIB_Release\zlib.lib static build
* Win32_LIB_Debug\zlibd.lib static build (debug version)

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Instructions for building libpng using Microsoft Visual Studio
==============================================================
Copyright (c) 2018 Cosmin Truta
Copyright (c) 2010,2013,2015 Glenn Randers-Pehrson
This code is released under the libpng license.
For conditions of distribution and use, see the disclaimer and license
in png.h
This directory contains a solution for building libpng under Microsoft
Visual Studio 2010. It may also work under later versions of Visual
Studio. You should be familiar with Visual Studio before using this
solution.
Initial preparations
--------------------
You must enter some information in zlib.props before attempting to
build with this 'solution'. Please read and edit zlib.props first.
You will probably not be familiar with the contents of zlib.props -
do not worry, it is mostly harmless.
This is all you need to do to build the 'release' and 'release library'
configurations.
Debugging
---------
The release configurations default to /Ox optimization. Full debugging
information is produced (in the .pdb), but if you encounter a problem
the optimization may make it difficult to debug. Simply rebuild with a
lower optimization level (e.g. /Od.)
Linking your application
------------------------
Normally you should link against the 'release' configuration. This
builds a DLL for libpng with the default runtime options used by Visual
Studio. In particular the runtime library is the "MultiThreaded DLL"
version. If you use Visual Studio defaults to build your application,
you should have no problems.
If you don't use the Visual Studio defaults your application must still
be built with the default runtime option (/MD). If, for some reason,
it is not then your application will crash inside libpng16.dll as soon
as libpng tries to read from a file handle you pass in.
If you do not want to use the DLL, and prefer static linking instead,
you may choose the 'release library' configuration. This is built with
a non-standard runtime library - the "MultiThreaded" version. When you
build your application, it must be compiled with this option (/MT),
otherwise it will not build (if you are lucky) or it will crash (if you
are not.) See the WARNING file that is distributed with this README.
Stop reading here
-----------------
You have enough information to build a working application.
Debug versions have limited support
-----------------------------------
This solution includes limited support for debug versions of libpng.
You do not need these unless your own solution itself uses debug builds
(it is far more effective to debug on the release builds, there is no
point building a special debug build unless you have heap corruption
problems that you can't track down.)
The debug build of libpng is minimally supported. Support for debug
builds of zlib is also minimal. Please keep this in mind, if you want
to use it.
WARNING
-------
Libpng 1.6.x does not use the default run-time library when building
static library builds of libpng; instead of the shared DLL runtime, it
uses a static runtime. If you need to change this, make sure to change
the setting on all the relevant projects:
libpng
zlib
all the test programs
The runtime library settings for each build are as follows:
Release Debug
DLL /MD /MDd
Library /MT /MTd
Also, be sure to build libpng, zlib, and your project, all for the same
platform (e.g., 32-bit or 64-bit).

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<?xml version="1.0" encoding="utf-8"?>
<!--
* zlib.props - location of zlib source
*
* Copyright (c) 2018 Cosmin Truta
* Copyright (c) 1998-2011 Glenn Randers-Pehrson
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
* You may need to edit this file in order to update the location
* of the zlib source code.
-->
<Project ToolsVersion="4.0"
xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup Label="Globals">
<!-- Place the name of the directory containing the source of zlib used for
debugging in this property.
The directory need only contain the '.c' and '.h' files from the
source.
If you use a relative directory name (as below) then it must be
relative to the project directories; these are one level deeper than
the directories containing this file.
If the version of zlib you use does not match that used when the
distribution was built you will get warnings from pngtest that the zlib
versions do not match. The zlib version used in this build is recorded
below:
-->
<ZLibSrcDir>..\..\..\..\zlib</ZLibSrcDir>
<!-- The following line allows compilation for an ARM target with Visual
Studio 2012. Notice that this is not supported by the Visual Studio
2012 IDE and that the programs that result cannot be run unless they
signed by Microsoft. This is therefore untested; only Microsoft can
test it:
-->
<WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>
<!-- The following lines provide a global (solution level) control of the
warnings issued by the compiler, these are used in the individual
project files (*/*.vcxproj) with, for zlib, some extra disables.
Different versions of Visual Studio may require different settings,
these settings work with Visual Studio 2013. Just set
TreatWarningAsError to false to check the build without failing on
errors.
-->
<WarningLevel>EnableAllWarnings</WarningLevel>
<TreatWarningAsError>true</TreatWarningAsError>
<DisableSpecificWarnings>4255;4668;4710;4711;4746;4820;4996</DisableSpecificWarnings>
</PropertyGroup>
</Project>