[legacy] Imported from libpng-1.2.45beta02.tar

image, always expand to RGBA if transparency is present.

ANNOUNCE

@@ -1,32 +1,123 @@
 
-Libpng 1.0.9beta1 - November 10, 2000
+Libpng 1.2.45beta02 - June 7, 2011
 
-This is a public release of libpng, intended for use in production codes.
+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 (1.0.8):
+Files available for download:
 
-  Fixed typo in scripts/makefile.hpux
-  Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
-  Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)
-  Changed "cdrom.com" in documentation to "libpng.org"
-  Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).
-  Changed type of "params" from voidp to png_voidp in png_read|write_png().
-  Added MNG_EXTENSIONS_SUPPORTED macro and support for some proposed MNG
-     features, for testing purposes.
-  Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h.
-  Revised the 3 instances of WRITEFILE in pngtest.c.
-  Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory.
-  Updated png.rc in dll/msvc project
-  Revised makefile.dec to define and use LIBPATH and INCPATH
-  Increased size of global png_libpng_ver[] array from 12 to 18 chars.
-  Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const.
-  Removed duplicate png_crc_finish() from png_handle_bKGD() function.
-  Added a warning when application calls png_read_update_info() multiple times.
-  Revised makefile.cygwin
-  Fixed bugs in iCCP support in pngrutil.c and pngwutil.c.
-  Replaced png_set_empty_plte_permitted() with png_permit_mng_features().
+Source files with LF line endings (for Unix/Linux) and with a
+"configure" script
 
-Send comments/corrections/commendations to
-png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
+   libpng-1.2.45beta02.tar.xz (LZMA-compressed, recommended)
+   libpng-1.2.45beta02.tar.gz
+   libpng-1.2.45beta02.tar.bz2
+
+Source files with LF line endings (for Unix/Linux) without the
+"configure" script
+
+   libpng-1.2.45beta02-no-config.tar.xz (LZMA-compressed, recommended)
+   libpng-1.2.45beta02-no-config.tar.gz
+   libpng-1.2.45beta02-no-config.tar.bz2
+
+Source files with CRLF line endings (for Windows), without the
+"configure" script
+
+   lp1245b02.zip
+   lp1245b02.7z
+   lp1245b02.tar.bz2
+
+Project files
+
+   libpng-1.2.45beta02-project-netware.zip
+   libpng-1.2.45beta02-project-wince.zip
+
+Other information:
+
+   libpng-1.2.45beta02-README.txt
+   libpng-1.2.45beta02-KNOWNBUGS.txt
+   libpng-1.2.45beta02-LICENSE.txt
+   libpng-1.2.45beta02-Y2K-compliance.txt
+   libpng-1.2.45beta02-[previous version]-diff.txt
+
+Changes since the last public release (1.2.42):
+
+version 1.2.43beta01 [January 27, 2010]
+  Updated CMakeLists.txt for consistent indentation and to avoid an
+    unclosed if-statement warning (Philip Lowman).
+  Removed "#ifdef PNG_1_0_X / #endif" surrounding
+    PNG_READ_16_TO_8_SUPPORTED and PNG_READ_GRAY_TO_RGB_SUPPORTED
+    in pngconf.h.  These were added in libpng-1.2.41beta08 and libpng-1.0.51,
+    which introduced a binary incompatibility with libpng-1.0.50.
+  Backported new png_decompress_chunk() algorithm from libpng-1.4.1
+
+version 1.2.43beta02 [February 1, 2010]
+  Backported two-pass png_decompress_chunk() algorithm from libpng-1.4.1
+
+version 1.2.43beta03 [February 6, 2010]
+  Backported fast png_push_save_buffer() algorithm from libpng-1.4.1
+
+version 1.2.43beta04 [February 8, 2010]
+  Reverted recent changes to png_push_save-buffer().
+  Removed PNGAPI declaration of png_calloc() and png_write_sig() in
+    1ibpng-1.2.X, introduced by mistake in libpng-1.2.41.
+  Return allocated "old_buffer" in png_push_save_buffer() before png_error(),
+    to avoid a potential memory leak.
+
+version 1.2.43beta05 [February 8, 2010]
+  Ported rewritten png_decompress_chunk() by John Bowler from libpng-1.4.1.
+
+version 1.0.53rc01 and 1.2.43rc01 [February 18, 2010]
+  No changes.
+
+version 1.0.53rc02 and 1.2.43rc02 [February 19, 2010]
+  Define _ALL_SOURCE in configure.ac, makefile.aix, and CMakeLists.txt
+    when using AIX compiler.
+
+version 1.0.53 and 1.2.43 [February 25, 2010]
+  Removed unused gzio.c from contrib/pngminim gather and makefile scripts
+
+version 1.2.44beta01 [June 18, 2010]
+  In pngpread.c: png_push_have_row() add check for new_row > height
+  Removed the now-redundant check for out-of-bounds new_row from example.c
+
+version 1.2.44beta02 [June 19, 2010]
+  In pngpread.c: png_push_process_row() add check for too many rows.
+  Removed the now-redundant check for new_row > height in png_push_have_row().
+
+version 1.2.44beta03 [June 20, 2010]
+  Rewrote png_process_IDAT_data to consistently treat extra data as warnings
+    and handle end conditions more cleanly.
+  Removed the new (beta02) check in png_push_process_row().
+
+version 1.2.44rc01 [June 21, 2010]
+  Revised some comments in png_process_IDAT_data().
+Send comments/corrections/commendations to png-mng-implement at lists.sf.net
+
+version 1.2.44rc02 [June 22, 2010]
+  Stop memory leak when reading a malformed sCAL chunk.
+
+version 1.2.44rc03 [June 23, 2010]
+  Revised pngpread.c patch of beta05 to avoid an endless loop.
+
+version 1.2.44 [June 26, 2010]
+  Updated some of the "last changed" dates.
+
+version 1.2.45beta01 [June 7, 2011]
+  Fixed 1-byte uninitialized memory reference in png_format_buffer() (Bug
+    report by Frank Busse, related to CVE-2004-0421).
+  Pass "" instead of '\0' to png_default_error() in png_err().  This mistake
+    was introduced in libpng-1.2.20beta01.
+  Check for up->location !PNG_AFTER_IDAT when writing unknown chunks
+    before IDAT.
+  Ported bugfix in pngrtran.c from 1.5.3: when expanding a paletted image,
+    always expand to RGBA if transparency is present.
+
+version 1.2.45beta02 [June 7, 2011]
+  Check for integer overflow in png_set_rgb_to_gray().
+
+(subscription required; visit
+https://lists.sourceforge.net/lists/listinfo/png-mng-implement
+to subscribe) or to glennrp at users.sourceforge.net
 
 Glenn R-P

CMakeLists.txt

@@ -0,0 +1,284 @@
+cmake_minimum_required(VERSION 2.4.3)
+set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
+
+if(UNIX AND NOT DEFINED CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING 
+      "Choose the type of build, options are:
+         None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used)
+         Debug
+         Release
+         RelWithDebInfo
+         MinSizeRel.")
+endif()
+
+project(libpng C)
+enable_testing()
+
+# Copyright (C) 2007-2010 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
+
+set(PNGLIB_MAJOR 1)
+set(PNGLIB_MINOR 2)
+set(PNGLIB_RELEASE 45)
+set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
+set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
+
+# needed packages
+find_package(ZLIB REQUIRED)
+include_directories(${ZLIB_INCLUDE_DIR})
+
+if(NOT WIN32)
+  find_library(M_LIBRARY
+    NAMES m
+    PATHS /usr/lib /usr/local/lib
+  )
+  if(NOT M_LIBRARY)
+    message(STATUS
+      "math library 'libm' not found - floating point support disabled")
+  endif()
+else()
+  # not needed on windows
+  set(M_LIBRARY "")
+endif()
+
+# COMMAND LINE OPTIONS
+if(DEFINED PNG_SHARED)
+  option(PNG_SHARED "Build shared lib" ${PNG_SHARED})
+else()
+  option(PNG_SHARED "Build shared lib" ON)
+endif()
+if(DEFINED PNG_STATIC)
+  option(PNG_STATIC "Build static lib" ${PNG_STATIC})
+else()
+  option(PNG_STATIC "Build static lib" ON)
+endif()
+
+if(MINGW)
+  option(PNG_TESTS  "Build pngtest" NO)
+else()
+  option(PNG_TESTS  "Build pngtest" YES)
+endif()
+
+option(PNG_NO_CONSOLE_IO "FIXME" YES)
+option(PNG_NO_STDIO      "FIXME" YES)
+option(PNG_DEBUG         "Build with debug output" NO)
+option(PNGARG            "FIXME" YES)
+#TODO:
+# PNG_CONSOLE_IO_SUPPORTED
+
+# maybe needs improving, but currently I don't know when we can enable what :)
+set(png_asm_tmp "OFF")
+if(NOT WIN32)
+  find_program(uname_executable NAMES uname PATHS /bin /usr/bin /usr/local/bin)
+  if(uname_executable)
+    exec_program(${uname_executable}
+                 ARGS --machine OUTPUT_VARIABLE uname_output)
+    if("uname_output" MATCHES "^.*i[1-9]86.*$")
+      set(png_asm_tmp "ON")
+    else("uname_output" MATCHES "^.*i[1-9]86.*$")
+      set(png_asm_tmp "OFF")
+    endif("uname_output" MATCHES "^.*i[1-9]86.*$")
+  endif(uname_executable)
+else()
+  # this env var is normally only set on win64
+  set(TEXT "ProgramFiles(x86)")
+  if("$ENV{${TEXT}}" STREQUAL "")
+    set(png_asm_tmp "ON")
+  endif("$ENV{${TEXT}}" STREQUAL "")
+endif()
+
+# SET LIBNAME
+set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR})
+
+# to distinguish between debug and release lib
+set(CMAKE_DEBUG_POSTFIX "d")
+
+
+# OUR SOURCES
+set(libpng_sources
+  png.h
+  pngconf.h
+  png.c
+  pngerror.c
+  pngget.c
+  pngmem.c
+  pngpread.c
+  pngread.c
+  pngrio.c
+  pngrtran.c
+  pngrutil.c
+  pngset.c
+  pngtrans.c
+  pngwio.c
+  pngwrite.c
+  pngwtran.c
+  pngwutil.c
+)
+set(pngtest_sources
+  pngtest.c
+)
+# SOME NEEDED DEFINITIONS
+
+add_definitions(-DPNG_CONFIGURE_LIBPNG)
+
+if(_AIX)
+  add_definitions(-D_ALL_SOURCE)
+endif(_AIX)
+
+if(MSVC)
+  add_definitions(-DPNG_NO_MODULEDEF -D_CRT_SECURE_NO_DEPRECATE)
+endif(MSVC)
+
+if(PNG_SHARED OR  NOT MSVC)
+  #if building msvc static this has NOT to be defined
+  add_definitions(-DZLIB_DLL)
+endif()
+
+add_definitions(-DLIBPNG_NO_MMX)
+add_definitions(-DPNG_NO_MMX_CODE)
+
+
+if(PNG_CONSOLE_IO_SUPPORTED)
+  add_definitions(-DPNG_CONSOLE_IO_SUPPORTED)
+endif()
+
+if(PNG_NO_CONSOLE_IO)
+  add_definitions(-DPNG_NO_CONSOLE_IO)
+endif()
+
+if(PNG_NO_STDIO)
+  add_definitions(-DPNG_NO_STDIO)
+endif()
+
+if(PNG_DEBUG)
+  add_definitions(-DPNG_DEBUG)
+endif()
+
+if(NOT M_LIBRARY AND NOT WIN32)
+  add_definitions(-DPNG_NO_FLOATING_POINT_SUPPORTED)
+endif()
+
+# NOW BUILD OUR TARGET
+include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})
+
+if(PNG_SHARED)
+  add_library(${PNG_LIB_NAME} SHARED ${libpng_sources})
+  if(MSVC)
+    # msvc does not append 'lib' - do it here to have consistent name
+    set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib")
+  endif()
+  target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
+endif()
+
+if(PNG_STATIC)
+# does not work without changing name
+  set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static)
+  add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources})
+  if(MSVC)
+    # msvc does not append 'lib' - do it here to have consistent name
+    set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib")
+  endif()
+endif()
+
+
+if(PNG_SHARED AND WIN32)
+  set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
+endif()
+
+if(PNG_TESTS AND PNG_SHARED)
+  # does not work with msvc due to png_lib_ver issue
+  add_executable(pngtest ${pngtest_sources})
+  target_link_libraries(pngtest ${PNG_LIB_NAME})
+  add_test(pngtest pngtest ${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png)
+endif()
+
+
+# CREATE PKGCONFIG FILES
+# we use the same files like ./configure, so we have to set its vars
+set(prefix      ${CMAKE_INSTALL_PREFIX})
+set(exec_prefix ${CMAKE_INSTALL_PREFIX})
+set(libdir      ${CMAKE_INSTALL_PREFIX}/lib)
+set(includedir  ${CMAKE_INSTALL_PREFIX}/include)
+
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng.pc.in
+  ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng-config.in
+  ${CMAKE_CURRENT_BINARY_DIR}/libpng-config)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng.pc.in
+  ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng-config.in
+  ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config)
+
+# SET UP LINKS
+if(PNG_SHARED)
+  set_target_properties(${PNG_LIB_NAME} PROPERTIES
+#   VERSION 0.${PNGLIB_RELEASE}.1.2.45beta02
+    VERSION 0.${PNGLIB_RELEASE}.0
+    SOVERSION 0
+    CLEAN_DIRECT_OUTPUT 1)
+endif()
+if(PNG_STATIC)
+  if(NOT WIN32)
+    # that's uncool on win32 - it overwrites our static import lib...
+    set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES
+      OUTPUT_NAME ${PNG_LIB_NAME}
+      CLEAN_DIRECT_OUTPUT 1)
+  endif()
+endif()
+
+# INSTALL
+if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
+  if(PNG_SHARED)
+    install(TARGETS ${PNG_LIB_NAME}
+            RUNTIME DESTINATION bin
+            LIBRARY DESTINATION lib
+            ARCHIVE DESTINATION lib)
+  endif()
+  if(PNG_STATIC)
+    install(TARGETS ${PNG_LIB_NAME_STATIC}
+            LIBRARY DESTINATION lib
+            ARCHIVE DESTINATION lib)
+  endif()
+endif()
+
+if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
+  install(FILES png.h pngconf.h         DESTINATION include)
+  install(FILES png.h pngconf.h         DESTINATION include/${PNGLIB_NAME})
+endif()
+if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL )
+  install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin)
+  install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
+          DESTINATION bin)
+endif()
+if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
+  # Install man pages
+  install(FILES libpng.3 libpngpf.3             DESTINATION man/man3)
+  install(FILES png.5                           DESTINATION man/man5)
+  # Install pkg-config files
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
+          DESTINATION lib/pkgconfig)
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
+          DESTINATION bin)
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
+          DESTINATION lib/pkgconfig)
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
+          DESTINATION bin)
+endif()
+
+# what's with libpng.txt and all the extra files?
+
+
+# UNINSTALL
+# do we need this?
+
+
+# DIST
+# do we need this?
+
+# to create msvc import lib for mingw compiled shared lib
+# pexports libpng.dll > libpng.def
+# lib /def:libpng.def /machine:x86
+

INSTALL

@@ -1,17 +1,53 @@
 
-Installing libpng version 1.0.9beta1 - November 10, 2000
+Installing libpng version 1.2.45beta02 - June 7, 2011
 
-Before installing libpng, you must first install zlib.  zlib
-can usually be found wherever you got libpng.  zlib can be
-placed in another directory, at the same level as libpng.
-Note that your system might already have a preinstalled
-zlib, but you will still need to have access to the
-zlib.h and zconf.h include files that correspond to the
-version of zlib that's installed.
+On Unix/Linux and similar systems, you can simply type
+
+    ./configure [--prefix=/path]
+    make check
+    make install
+
+and ignore the rest of this document.
+
+If configure does not work on your system and you have a reasonably
+up-to-date set of tools, running ./autogen.sh before running ./configure
+may fix the problem.  You can also run the individual commands in
+autogen.sh with the --force option, if supported by your version of
+the tools.  If you run 'libtoolize --force', though, this will replace
+the distributed, patched, version of ltmain.sh with an unpatched version
+and your shared library builds may fail to produce libraries with the
+correct version numbers.
+
+Instead, you can use one of the custom-built makefiles in the
+"scripts" directory
+
+    cp scripts/makefile.system makefile
+    make test
+    make install
+
+The files that are presently available in the scripts directory
+are listed and described in scripts/README.txt.
+
+Or you can use one of the "projects" in the "projects" directory.
+
+Before installing libpng, you must first install zlib, if it
+is not already on your system.  zlib can usually be found
+wherever you got libpng.  zlib can be placed in another directory,
+at the same level as libpng.
+
+If you want to use "cmake" (see www.cmake.org), type
+
+   cmake . -DCMAKE_INSTALL_PREFIX=/path
+   make
+   make install
+
+If your system already has a preinstalled zlib you will still need
+to have access to the 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-1.0.9beta1" or "lpng109" and "zlib-1.1.3"
-or "zlib113") so that you have directories called "zlib" and "libpng".
+might be called "libpng-1.2.45beta02" or "libpng12" and "zlib-1.2.3"
+or "zlib123") so that you have directories called "zlib" and "libpng".
 
 Your directory structure should look like this:
 
@@ -21,17 +57,26 @@ Your directory structure should look like this:
           README
           *.h
           *.c
+          CMakeLists.txt    =>  "cmake" script
+          configuration files:
+             configure.ac, configure, Makefile.am, Makefile.in,
+             autogen.sh, config.guess, ltmain.sh, missing,
+             aclocal.m4, config.h.in, config.sub,
+             depcomp, install-sh, mkinstalldirs, test-pngtest.sh
           contrib
              gregbook
-             msvctest
+             pngminim
              pngminus
              pngsuite
              visupng
-          dll
-             msvc
-             wince
+          projects
+             cbuilder5 (Borland)
+             visualc6 (msvc)
+             visualc71
+             xcode
           scripts
              makefile.*
+             *.def (module definition files)
           pngtest.png
           etc.
       zlib
@@ -45,61 +90,13 @@ If the line endings in the files look funny, you may wish to get the other
 distribution of libpng.  It is available in both tar.gz (UNIX style line
 endings) and zip (DOS style line endings) formats.
 
-If you are building libpng with MSVC, you can enter the libpng\msvc directory
-and follow the instructions in msvc\README.txt.  You can build libpng for
-WindowsCE by entering the libpng\wince directory and following the
-instructions in the README* files.
+If you are building libpng with MSVC, you can enter the
+libpng projects\visualc6 or visualc71 directory and follow the instructions
+in README.txt.
 
-Else enter the zlib directory and follow the instructions in zlib/README,
-then come back here and choose the appropriate makefile.sys in the scripts
-directory.  
-
-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.2.1.0.9beta1)
- makefile.gcmmx    =>  Linux/ELF makefile (gcc, creates libpng.so.2.1.0.9beta1,
-                       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
-                       ansi2knr (Requires ansi2knr.c from
-                       ftp://ftp.cs.wisc.edu/ghost)
- makefile.cygwin   =>  Cygwin/gcc makefile
- makefile.dec      =>  DEC Alpha UNIX makefile
- makefile.hpux     =>  HPUX (10.20 and 11.00) makefile
- makefile.ibmc     =>  IBM C/C++ version 3.x for Win32 and OS/2 (static)
- makefile.intel    =>  Intel C/C++ version 4.0 and later
- libpng.icc        =>  Project file for IBM VisualAge/C++ version 4.0 or later
- makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
- makefile.sggcc    =>  Silicon Graphics (gcc, creates libpng.so.2.1.0.9beta1)
- makefile.sunos    =>  Sun makefile
- makefile.solaris  =>  Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.9beta1)
- makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
- makefile.mips     =>  MIPS makefile
- makefile.acorn    =>  Acorn makefile
- makefile.amiga    =>  Amiga makefile
- smakefile.ppc     =>  AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
-                       (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
- makefile.atari    =>  Atari makefile
- makefile.beos     =>  BEOS makefile for X86
- makefile.bor      =>  Borland makefile (uses bcc)
- makefile.bc32     =>  32-bit Borland C++ (all modules compiled in C mode)
- makefile.bd32     =>  To make a png32bd.dll with Borland C++ 4.5
- makefile.tc3      =>  Turbo C 3.0 makefile
- makefile.dj2      =>  DJGPP 2 makefile
- makefile.msc      =>  Microsoft C makefile
- makefile.vcawin32 =>  makefile for Microsoft Visual C++ 5.0 and later (uses
-                       assembler code tuned for Intel MMX platform)
- makefile.vcwin32  =>  makefile for Microsoft Visual C++ 4.0 and later (does
-                       not use assembler code)
- makefile.os2      =>  OS/2 Makefile (gcc and emx, requires pngos2.def)
- pngos2.def        =>  OS/2 module definition file used by makefile.os2
- makefile.watcom   =>  Watcom 10a+ Makefile, 32-bit flat memory model
- makevms.com       =>  VMS build script
- descrip.mms       =>  VMS makefile for MMS or MMK
- pngdef.pas        =>  Defines for a png32bd.dll with Borland C++ 4.5
- SCOPTIONS.ppc     =>  Used with smakefile.ppc
+Otherwise enter the zlib directory and follow the instructions in zlib/README,
+then come back here and run "configure" or choose the appropriate
+makefile.sys in the scripts directory.
 
 Copy the file (or files) that you need from the
 scripts directory into this directory, for example
@@ -113,19 +110,54 @@ target directories to match your preferences.
 Then read pngconf.h to see if you want to make any configuration
 changes.
 
-Then just run "make test" which will create the libpng library in
-this directory and run a quick test that reads the "pngtest.png"
-file and writes a "pngout.png" file that should be identical to it.
-Look for "9782 zero samples" in the output of the test.  For more
-confidence, you can run another test by typing "pngtest pngnow.png"
-and looking for "289 zero samples" in the output.  Also, you can
-run "pngtest -m *.png" in the "contrib/pngsuite" directory and compare
+Then just run "make" which will create the libpng library in
+this directory and "make test" which will run a quick test that reads
+the "pngtest.png" file and writes a "pngout.png" file that should be
+identical to it.  Look for "9782 zero samples" in the output of the
+test.  For more confidence, you can run another test by typing
+"pngtest pngnow.png" and looking for "289 zero samples" in the output.
+Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare
 your output with the result shown in contrib/pngsuite/README.
 
 Most of the makefiles will allow you to run "make install" to
 put the library in its final resting place (if you want to
 do that, run "make install" in the zlib directory first if necessary).
+Some also allow you to run "make test-installed" after you have
+run "make install".
+
+If you encounter a compiler error message complaining about the
+lines
+
+      __png.h__ already includes setjmp.h;
+      __dont__ include it again.;
+
+this means you have compiled another module that includes setjmp.h,
+which is hazardous because the two modules might not include exactly
+the same setjmp.h.  If you are sure that you know what you are doing
+and that they are exactly the same, then you can comment out or
+delete the two lines.  Better yet, use the cexcept interface
+instead, as demonstrated in contrib/visupng of the libpng distribution.
 
 Further information can be found in the README and libpng.txt
-files, in the individual makefiles, in png.h, in the README files in
-subdirectories of the dll directory, and the manual pages libpng.3 and png.5.
+files, in the individual makefiles, in png.h, and the manual pages
+libpng.3 and png.5.
+
+
+Using the ./configure script -- 16 December 2002.
+=================================================
+
+
+The ./configure script should work compatibly with what scripts/makefile.*
+did, however there are some options you need to add to configure explicitly,
+which previously was done semi-automatically (if you didn't edit
+scripts/makefile.* yourself, that is)
+
+
+CFLAGS="-Wall -O -funroll-loops \
+-malign-loops=2 -malign-functions=2" ./configure --prefix=/usr/include \
+--with-pkgconfigdir=/usr/lib/pkgconfig --includedir=/usr/include
+
+You can alternatively specify --includedir=/usr/include, /usr/local/include,
+/usr/include/png12, or whatever.
+
+

KNOWNBUG

@@ -1,65 +1,29 @@
 
-Known bugs and suggested enhancements in libpng-1.0.8
+Known bugs in libpng version 1.2.45beta02
 
-0: November 3, 2000 -- BUG -- incorrect iCCP chunk is written
+1. December 4, 2009: The PNG_NO_ERROR_NUMBERS macro was inadvertently
+   defined in libpng-1.2.41/pngconf.h, which may cause a problem with
+   building a binary-compatible library.
 
-   The compression_type byte in the iCCP chunk written by libpng is
-   usually incorrect.
+   STATUS: This will be fixed in libpng-1.2.42.  In the meantime, simply
+   delete the definition from line :
 
-   Status: Fixed in libpng-1.0.9beta1
+2. February 23, 2006: The custom makefiles don't build libpng with -lz.
 
-1. October 12, 2000 -- BUG -- pngtest fails
+   STATUS: This is a subject of debate. The change will probably be made
+   as a part of a major overhaul of the makefiles in libpng version 1.4.0.
 
-   The three WRITEFILE calls in pngtest.c are incorrect.  They must be
-   changed to read
+3. February 24, 2006: The Makefile generated by the "configure" script
+   fails to install symbolic links
+   libpng12.so => libpng12.so.0.1.2.9betaN
+   that are generated by the custom makefiles.
 
-   WRITEFILE((png_FILE_p)png_ptr->io_ptr,  data, length, check);
-   WRITEFILE(io_ptr, near_data, length, check);
-   WRITEFILE(io_ptr, buf, written, err);
+4. September 4, 2007:  There is a report that pngtest crashes on MacOS 10.
 
-2. August 28, 2000 -- BUG -- pnggccrd.c
-
-   The interlacing() function has still not been fully converted and
-   will not compile under gcc-2.95.2; it is currently ifdef'ed out.
-
-   STATUS: Fixed in libpng-1.0.9.  There were also bugs in pngvcrd.c
-   which have been fixed.  The replacement files are available at the
-   PNG web site (http://www.libpng.org/pub/png).
-
-3. March 15, 1998 -- OPTIMIZATION -- Kevin Bracey
-
-   Loops need to be optimized everywhere
-
-   Make them count down instead of up -- Kevin Bracey
-
-   Optimizing compilers don't need this, and making
-   the change would be error prone -- Tom Lane, Glenn R-P
-
-   Question whether i-- or --i is better.
-
-   STATUS: Under investigation, postponed until after
-   libpng-2.0.0.  About 160 loops will be turned around
-   in libpng-2.0.x betaxx, for testing.
-
-4. July 4, 1998 -- ENHANCEMENT -- Glenn R-P
-
-   libpng-1.0.5 and earlier transform colors to gamma=1.0 space for
-   merging with background, and then back to the image's gamma.  The
-   bit_depth of the intermediate (gamma=1.0) representation is probably
-   not sufficient.  In the typical gamma=1/2.2 situation, the linear
-   pixels need about 4 more bits than the gamma-encoded ones, to avoid
-   loss of precision.  A similar situation exists with the rgb_to_gray
-   operation.
-
-   STATUS: under development.
-
-5. September 1999 -- ENHANCEMENT --
-
-   It should be possible to use libpng without floating-point arithmetic.
-
-   STATUS: Under investigation, implementation postponed until after
-   libpng-2.0.0.
-
-   Much of this was completed in libpng-1.0.6, but gamma compensation
-   is not yet done in fixed-point arithmetic.
+   STATUS: workarounds are
+      1) Compile without optimization (crashes are observed with
+         -arch i386 and -O2 or -O3, using gcc-4.0.1).
+      2) Compile pngtest.c with PNG_DEBUG defined (the bug goes away if
+         you try to look at it).
+      3) Ignore the crash.  The library itself seems to be OK.
 

LICENSE

@@ -8,9 +8,18 @@ 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 1.0.9beta1, November 10, 2000, are
-Copyright (c) 2000 Glenn Randers-Pehrson
-and are distributed according to the same disclaimer and license as libpng-1.0.6
+This code is released under the libpng license.
+
+libpng versions 1.2.6, August 15, 2004, through 1.2.45beta02, June 7, 2011, are
+Copyright (c) 2004, 2006-2009 Glenn Randers-Pehrson, and are
+distributed according to the same disclaimer and license as libpng-1.2.5
+with the following individual added to the list of Contributing Authors
+
+   Cosmin Truta
+
+libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are
+Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
+distributed according to the same disclaimer and license as libpng-1.0.6
 with the following individuals added to the list of Contributing Authors
 
    Simon-Pierre Cadieux
@@ -98,5 +107,5 @@ 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 10, 2000
+glennrp at users.sourceforge.net
+June 7, 2011

Makefile.am

@@ -0,0 +1,153 @@
+# Makefile.am:
+#   Source file for Makefile.in (and hence Makefile)
+#
+# Makefile.am need only be changed on a major version number
+# change (e.g. libpng12 --> libpng14).  In that case seach
+# this file for every instance of the old base name (libpng12)
+# and change to the new one (libpng14), then change the
+# -version-number settings below so that the new values have
+# the correct major part (first field).
+
+PNGLIB_BASENAME= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
+
+# libpng does not follow GNU file name conventions
+AUTOMAKE_OPTIONS = foreign
+
+# test programs - run on make check, make distcheck
+check_PROGRAMS= pngtest
+pngtest_SOURCES = pngtest.c
+pngtest_LDADD = libpng12.la
+TESTS = test-pngtest.sh
+TESTS_ENVIRONMENT= srcdir=$(srcdir)
+
+# man pages
+dist_man_MANS= libpng.3 libpngpf.3 png.5
+
+# generate the -config scripts if required
+binconfigs= libpng12-config
+EXTRA_SCRIPTS= libpng-config libpng12-config
+bin_SCRIPTS= @binconfigs@
+
+# rules to build libpng, only build the old library on request
+lib_LTLIBRARIES=libpng12.la @compatlib@
+EXTRA_LTLIBRARIES= libpng.la
+libpng12_la_SOURCES = png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
+	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
+	pngwtran.c pngmem.c pngerror.c pngpread.c \
+	png.h pngconf.h
+libpng_la_SOURCES = $(libpng12_la_SOURCES)
+
+libpng_la_CPPFLAGS = @LIBPNG_DEFINES@
+libpng12_la_CPPFLAGS = @LIBPNG_DEFINES@
+
+# MAJOR UPGRADE: the version-number settings below must be changed.
+libpng12_la_LDFLAGS = -no-undefined -export-dynamic \
+	-version-number 0:@PNGLIB_RELEASE@:0
+# -rpath is needed as automake doesn't know the directory
+libpng_la_LDFLAGS = -rpath '$(libdir)' -no-undefined -export-dynamic \
+	-version-number 3:@PNGLIB_RELEASE@:0
+
+if HAVE_LD_VERSION_SCRIPT
+  # Versioned symbols and restricted exports
+  libpng12_la_LDFLAGS += -Wl,--version-script=libpng.vers
+  libpng12_la_DEPENDENCIES = libpng.vers
+else
+  # Only restricted exports when possible
+  libpng12_la_LDFLAGS += -export-symbols libpng.sym
+  libpng12_la_DEPENDENCIES = libpng.sym
+endif
+libpng_la_DEPENDENCIES = $(libpng12_la_DEPENDENCIES)
+
+# Avoid depending upon Character Ranges.
+AN = '_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
+
+#distribute headers in /usr/include/libpng/*
+pkgincludedir= $(includedir)/$(PNGLIB_BASENAME)
+pkginclude_HEADERS= png.h pngconf.h
+
+# pkg-config stuff, note that libpng.pc is always required in order
+# to get the correct library
+pkgconfigdir = @pkgconfigdir@
+pkgconfig_DATA = libpng12.pc
+
+#extra source distribution files.
+EXTRA_DIST= \
+	ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
+	pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
+	${srcdir}/projects/cbuilder5/* \
+	${srcdir}/projects/beos/* \
+	${srcdir}/projects/visualc6/* \
+	${srcdir}/projects/visualc71/* \
+	${srcdir}/projects/wince.txt \
+	${srcdir}/projects/netware.txt \
+	${srcdir}/scripts/* \
+	${srcdir}/contrib/gregbook/* \
+	${srcdir}/contrib/pngminus/* \
+	${srcdir}/contrib/pngsuite/* \
+	${srcdir}/contrib/visupng/* \
+	$(TESTS) \
+	example.c libpng-1.2.45beta02.txt pngvcrd.c
+
+CLEANFILES= pngout.png libpng12.pc libpng12-config libpng.vers \
+libpng.sym
+
+MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
+config.sub configure depcomp install-sh ltmain.sh missing
+
+$(PNGLIB_BASENAME).pc: libpng.pc
+	cp libpng.pc $@
+
+$(PNGLIB_BASENAME)-config: libpng-config
+	cp libpng-config $@
+
+libpng.sym: png.h pngconf.h
+	rm -f $@ $@.new
+	$(CPP) @LIBPNG_DEFINES@ $(CPPFLAGS) -DPNG_BUILDSYMS $(srcdir)/png.h $(srcdir)/$@
+	cat $(srcdir)/$@ | \
+		$(SED) -n -e \
+		's|^.*PNG_FUNCTION_EXPORT[ 	]*\([$(AN)]*\).*$$|$(SYMBOL_PREFIX)\1|p' \
+		-e 's|^.*PNG_DATA_EXPORT[ 	]*\([$(AN)]*\).*$$|$(SYMBOL_PREFIX)\1|p' \
+			>$@.new
+	mv $@.new $@
+
+libpng.vers: libpng.sym
+	rm -f $@ $@.new
+	echo PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0 '{global:' > $@.new
+	$(SED) s/$$/\;/ libpng.sym >> $@.new
+	echo 'local: *; };' >> $@.new
+	mv $@.new $@
+
+test: check
+
+# install the .../include headers as links to the new ones
+install-data-hook:
+	cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h
+	cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
+	cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pngconf.h pngconf.h
+	cd $(DESTDIR)$(pkgconfigdir); rm -f libpng.pc
+	cd $(DESTDIR)$(pkgconfigdir); $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc
+
+# do evil things to libpng to cause libpng12 to be used
+install-exec-hook:
+	cd $(DESTDIR)$(bindir); rm -f libpng-config
+	cd $(DESTDIR)$(bindir); $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
+	@set -x;\
+	cd $(DESTDIR)$(libdir);\
+	for ext in a la so sl dylib; do\
+		rm -f libpng.$$ext;\
+                if test -f $(PNGLIB_BASENAME).$$ext; then\
+                       $(LN_S) $(PNGLIB_BASENAME).$$ext libpng.$$ext;\
+                fi;\
+	done
+
+uninstall-hook:
+	cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h
+	rm -f $(DESTDIR)$(pkgconfigdir)/libpng.pc
+	rm -f $(DESTDIR)$(bindir)/libpng-config
+	@if test -n "@compatlib@"; then\
+		set -x;\
+		cd $(DESTDIR)$(libdir);\
+		for ext in a la so sl dylib; do\
+			rm -f libpng.$$ext;\
+		done;\
+	fi

README

@@ -1,11 +1,15 @@
-README for libpng 1.0.9beta1 - November 10, 2000 (shared library 2.1)
+README for libpng version 1.2.45beta02 - June 7, 2011 (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,
+libpng-*.tar.xz, or libpng-*.tar.bz2 if you want UNIX-style line
+endings in the text files, or lpng*.7z or lpng*.zip if you want DOS-style
+line endings.  You can get UNIX-style line endings from the *.zip file
+by using "unzip -a" but there seems to be no simple way to recover
+UNIX-style line endings from the *.7z file.  The *.tar.xz file is
+recommended for *NIX users instead.
 
 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
@@ -54,9 +58,9 @@ to set different actions based on whether the CRC error occurred in a
 critical or an ancillary chunk.
 
 The changes made to the library, and bugs fixed are based on discussions
-on the PNG implementation mailing list <png-implement@ccrc.wustl.edu>
-and not on material submitted privately to Guy, Andreas, or Glenn.  They will
-forward any good suggestions to the list.
+on the png-mng-implement mailing list and not on material submitted
+privately to Guy, Andreas, or Glenn.  They will forward any good
+suggestions to the list.
 
 For a detailed description on using libpng, read libpng.txt.  For
 examples of libpng in a program, see example.c and pngtest.c.  For usage
@@ -77,16 +81,15 @@ compression library that is useful for more things than just PNG files.
 You can use zlib as a drop-in replacement for fread() and fwrite() if
 you are so inclined.
 
-zlib should be available at the same place that libpng is.
-If not, it should be at ftp.uu.net in /graphics/png
-Eventually, it will be at ftp.uu.net in /pub/archiving/zip/zlib
+zlib should be available at the same place that libpng is, or at
+ftp://ftp.simplesystems.org/pub/png/src/
 
 You may also want a copy of the PNG specification.  It is available
-as an RFC and a W3C Recommendation.  Failing
-these resources you can try ftp.uu.net in the /graphics/png directory.
+as an RFC, a W3C Recommendation, and an ISO/IEC Standard.  You can find
+these at http://www.libpng.org/pub/png/pngdocs.html
 
-This code is currently being archived at ftp.uu.net in the
-/graphics/png directory, and on CompuServe, Lib 20 (PNG SUPPORT)
+This code is currently being archived at libpng.sf.net in the
+[DOWNLOAD] area, and on CompuServe, Lib 20 (PNG SUPPORT)
 at GO GRAPHSUP.  If you can't find it in any of those places,
 e-mail me, and I'll help you find it.
 
@@ -102,19 +105,23 @@ Finally, if you get any warning messages when compiling libpng
 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.
+based in a large way on Guy's and Andreas' earlier work), and the PNG
+development group.
 
-randeg@alum.rpi.edu
-png-implement@ccrc.wustl.edu
+Send comments/corrections/commendations to png-mng-implement at lists.sf.net
+(subscription required; visit 
+https://lists.sourceforge.net/lists/listinfo/png-mng-implement
+to subscribe) or to glennrp at users.sourceforge.net
 
 You can't reach Guy, the original libpng author, at the addresses
-given in previous versions of this document.  He and Andreas will read mail
-addressed to the png-implement list, however.
+given in previous versions of this document.  He and Andreas will
+read mail addressed to the png-mng-implement list, however.
 
 Please do not send general questions about PNG.  Send them to
-the address in the specification (png-group@w3.org).  At the same
-time, please do not send libpng questions to that address, send them to me
-or to png-implement@ccrc.wustl.edu.  I'll
+the (png-mng-misc at lists.sourceforge.net, subscription required, visit
+https://lists.sourceforge.net/lists/listinfo/png-mng-misc to
+subscribe). On the other hand, please do not send libpng questions to
+that address, send them to me or to the png-mng-implement list.  I'll
 get them in the end anyway.  If you have a question about something
 in the PNG specification that is related to using libpng, send it
 to me.  Send me any questions that start with "I was using libpng,
@@ -122,10 +129,10 @@ and ...".  If in doubt, send questions to me.  I'll bounce them
 to others, if necessary.
 
 Please do not send suggestions on how to change PNG.  We have
-been discussing PNG for three years now, and it is official and
+been discussing PNG for twelve years now, and it is official and
 finished.  If you have suggestions for libpng, however, I'll
-gladly listen.  Even if your suggestion is not used for version
-1.0, it may be used later.
+gladly listen.  Even if your suggestion is not used immediately,
+it may be used later.
 
 Files in this distribution:
 
@@ -137,6 +144,7 @@ Files in this distribution:
       TODO          =>  Things not implemented in the current library
       Y2KINFO       =>  Statement of Y2K compliance
       example.c     =>  Example code for using libpng functions
+      libpng-*-*-diff.txt => Diff from previous release
       libpng.3      =>  manual page for libpng (includes libpng.txt)
       libpng.txt    =>  Description of libpng and its functions
       libpngpf.3    =>  manual page for libpng's private functions
@@ -144,7 +152,6 @@ Files in this distribution:
       png.c         =>  Basic interface functions common to library
       png.h         =>  Library function and interface declarations
       pngconf.h     =>  System specific library configuration
-      pngasmrd.h    =>  Header file for assembler-coded functions
       pngerror.c    =>  Error/warning message I/O functions
       pngget.c      =>  Functions for retrieving info from struct
       pngmem.c      =>  Memory handling functions
@@ -168,37 +175,67 @@ Files in this distribution:
                             Greg Roelofs' "PNG: The Definitive Guide",
                             O'Reilly, 1999
        msvctest     =>  Builds and runs pngtest using a MSVC workspace
+       pngminim     =>  Simple pnm2pngm and png2pnmm programs
        pngminus     =>  Simple pnm2png and png2pnm programs
        pngsuite     =>  Test images
        visupng      =>  Contains a MSVC workspace for VisualPng
-      dll           =>  Contains project files and workspaces for building DLL
-       msvc             =>  Contains a Microsoft Visual C++ (MSVC) workspace
-                            for building libpng and zlib
-       wince            =>  Contains a Microsoft Visual C++ (Windows CD Toolkit)
-                            workspace for building libpng and zlib on WindowsCE
+      projects      =>  Contains project files and workspaces for
+                        building a DLL
+       beos             =>  Contains a Beos workspace for building libpng
+       c5builder        =>  Contains a Borland workspace for building
+                            libpng and zlib
+       netware.txt      =>  Contains instructions for downloading a set
+                            of project files for building libpng and
+                            zlib on Netware.
+       visualc6         =>  Contains a Microsoft Visual C++ (MSVC)
+                            workspace for building libpng and zlib
+       wince.txt        =>  Contains instructions for downloading a
+                            Microsoft Visual C++ (Windows CD Toolkit)
+                            workspace for building libpng and zlib on
+                            WindowsCE
+       xcode            =>  Contains xcode project files
       scripts       =>  Directory containing scripts for building libpng:
        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.2.1.0.9beta1)
+       makefile.std     =>  Generic UNIX makefile (cc, creates static
+                            libpng.a)
+       makefile.elf     =>  Linux/ELF gcc makefile symbol versioning,
+                            creates libpng12.so.0.1.2.45beta02)
+       makefile.linux   =>  Linux/ELF makefile (gcc, creates
+                            libpng12.so.0.1.2.45beta02)
        makefile.gcmmx   =>  Linux/ELF makefile (gcc, creates
-                            libpng.so.2.1.0.9beta1, 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
-                            ansi2knr (Requires ansi2knr.c from
+                            libpng12.so.0.1.2.45beta02, previously
+                            used 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 ansi2knr (Requires ansi2knr.c from
                             ftp://ftp.cs.wisc.edu/ghost)
+       makefile.aix     =>  AIX makefile
        makefile.cygwin  =>  Cygwin/gcc makefile
+       makefile.darwin  =>  Darwin makefile
        makefile.dec     =>  DEC Alpha UNIX makefile
+       makefile.freebsd =>  FreeBSD makefile
+       makefile.hpgcc   =>  HPUX makefile using gcc
        makefile.hpux    =>  HPUX (10.20 and 11.00) makefile
-       makefile.ibmc    =>  IBM C/C++ version 3.x for Win32 and OS/2 (static)
+       makefile.hp64    =>  HPUX (10.20 and 11.00) makefile, 64 bit
+       makefile.ibmc    =>  IBM C/C++ version 3.x for Win32 and OS/2
+                            (static)
        makefile.intel   =>  Intel C/C++ version 4.0 and later
        libpng.icc       =>  Project file, IBM VisualAge/C++ 4.0 or later
+       makefile.netbsd  =>  NetBSD/cc makefile, makes libpng.so.
+       makefile.ne12bsd  =>  NetBSD/cc makefile, makes libpng12.so
+       makefile.openbsd =>  OpenBSD makefile
        makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
-       makefile.sggcc   =>  Silicon Graphics (gcc, creates libpng.so.2.1.0.9beta1)
+       makefile.sggcc   =>  Silicon Graphics
+                            (gcc, creates libpng12.so.0.1.2.45beta02)
        makefile.sunos   =>  Sun makefile
        makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng.so.2.1.0.9beta1)
+                            (gcc, creates libpng12.so.0.1.2.45beta02)
+       makefile.so9     =>  Solaris 9 makefile
+                            (gcc, creates libpng12.so.0.1.2.45beta02)
+       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
        makefile.mips    =>  MIPS makefile
        makefile.acorn   =>  Acorn makefile
@@ -210,31 +247,29 @@ Files in this distribution:
        makefile.beos    =>  BEOS makefile for X86
        makefile.bor     =>  Borland makefile (uses bcc)
        makefile.bc32    =>  32-bit Borland C++ (all modules compiled in C mode)
-       makefile.bd32    =>  To make a png32bd.dll with Borland C++ 4.5
        makefile.tc3     =>  Turbo C 3.0 makefile
        makefile.dj2     =>  DJGPP 2 makefile
        makefile.msc     =>  Microsoft C makefile
-       makefile.vcawin32 => makefile for Microsoft Visual C++ 5.0 and
-                            later (uses assembler code tuned for Intel MMX
-                            platform)
+       makefile.vcawin32=>  makefile for Microsoft Visual C++ 5.0 and
+                            later (previously used assembler code tuned
+                            for Intel MMX platform)
        makefile.vcwin32 =>  makefile for Microsoft Visual C++ 4.0 and
                             later (does not use assembler code)
        makefile.os2     =>  OS/2 Makefile (gcc and emx, requires pngos2.def)
        pngos2.def       =>  OS/2 module definition file used by makefile.os2
        makefile.watcom  =>  Watcom 10a+ Makefile, 32-bit flat memory model
        makevms.com      =>  VMS build script
-       pngdef.pas       =>  Defines for a png32bd.dll with Borland C++ 4.5
        SCOPTIONS.ppc    =>  Used with smakefile.ppc
 
 Good luck, and happy coding.
 
--Glenn Randers-Pehrson
- Internet: randeg@alum.rpi.edu
+-Glenn Randers-Pehrson (current maintainer, since 1998)
+ Internet: glennrp at users.sourceforge.net
 
--Andreas Eric Dilger
- Internet: adilger@enel.ucalgary.ca
- Web: http://www-mddsp.enel.ucalgary.ca/People/adilger/
+-Andreas Eric Dilger (former maintainer, 1996-1997)
+ Internet: adilger at enel.ucalgary.ca
+ Web: http://members.shaw.ca/adilger/
 
--Guy Eric Schalnat
+-Guy Eric Schalnat (original author and former maintainer, 1995-1996)
  (formerly of Group 42, Inc)
- Internet: gschal@infinet.com
+ Internet: gschal at infinet.com

TODO

@@ -17,3 +17,9 @@ Better filter selection
    (counting huffman bits/precompression?  filter inertia?  filter costs?).
 Histogram creation.
 Text conversion between different code pages (Latin-1 -> Mac and DOS).
+Should we always malloc 2^bit_depth PLTE/tRNS/hIST entries for safety?
+Build gamma tables using fixed point (and do away with floating point entirely).
+Use greater precision when changing to linear gamma for compositing against
+  background and doing rgb-to-gray transformation.
+Investigate pre-incremented loop counters and other loop constructions.
+Add interpolated method of handling interlacing.

Y2KINFO

@@ -1,13 +1,13 @@
    Y2K compliance in libpng:
    =========================
 
-      November 10, 2000
+      June 7, 2011
 
       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 1.0.9beta1 are Y2K compliant.  It is my belief that earlier
+      upward through 1.2.45beta02 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

autogen.sh

@@ -0,0 +1,25 @@
+#! /bin/sh
+# a quick hack script to generate necessary files from 
+# auto* tools.
+#
+# WARNING: if you run this you will change the versions
+# of the tools which are used and, maybe, required!
+        touch Makefile.am configure.ac
+{
+	echo "running libtoolize" >&2
+	libtoolize --force --copy --automake
+} && {
+	echo "running aclocal" >&2
+	aclocal
+} && {
+	echo "running autoheader [ignore the warnings]" >&2
+	autoheader
+} && {
+	echo "running automake" >&2
+	automake --force-missing --foreign -a -c
+} && {
+	echo "running autoconf" >&2
+	autoconf
+} &&
+	echo "autogen complete" >&2 ||
+	echo "ERROR: autogen.sh failed, autogen is incomplete" >&2

config.h.in

@@ -0,0 +1,86 @@
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the `m' library (-lm). */
+#undef HAVE_LIBM
+
+/* Define to 1 if you have the `z' library (-lz). */
+#undef HAVE_LIBZ
+
+/* Define to 1 if you have the <malloc.h> header file. */
+#undef HAVE_MALLOC_H
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `memset' function. */
+#undef HAVE_MEMSET
+
+/* Define to 1 if you have the `pow' function. */
+#undef HAVE_POW
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#undef LT_OBJDIR
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Define to 1 if your <sys/time.h> declares `struct tm'. */
+#undef TM_IN_SYS_TIME
+
+/* Version number of package */
+#undef VERSION
+
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef size_t

configure.ac

@@ -0,0 +1,153 @@
+# configure.ac
+
+dnl Process this file with autoconf to produce a configure script.
+dnl
+dnl Minor upgrades (compatible ABI): increment the package version
+dnl (third field in two places below) and set the PNGLIB_RELEASE
+dnl variable.
+dnl
+dnl Major upgrades (incompatible ABI): increment the package major
+dnl version (second field, or first if desired), set the minor
+dnl to 0, set PNGLIB_MAJOR below *and* follow the instructions in
+dnl Makefile.am to upgrade the package name.
+
+dnl This is here to prevent earlier autoconf from being used, it
+dnl should not be necessary to regenerate configure if the time
+dnl stamps are correct
+AC_PREREQ(2.59)
+
+dnl Version number stuff here:
+
+AC_INIT([libpng], [1.2.45beta02], [png-mng-implement@lists.sourceforge.net])
+AM_INIT_AUTOMAKE
+dnl stop configure from automagically running automake
+AM_MAINTAINER_MODE
+
+PNGLIB_VERSION=1.2.45beta02
+PNGLIB_MAJOR=1
+PNGLIB_MINOR=2
+PNGLIB_RELEASE=45
+
+dnl End of version number stuff
+
+AC_CONFIG_SRCDIR([pngget.c])
+AM_CONFIG_HEADER(config.h)
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_LD
+AC_PROG_CPP
+AC_CHECK_TOOL(SED, sed, :)
+AC_LIBTOOL_WIN32_DLL
+AC_PROG_INSTALL
+AC_PROG_LN_S
+AC_PROG_MAKE_SET
+AC_PROG_LIBTOOL
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS([malloc.h stdlib.h string.h strings.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+AC_TYPE_SIZE_T
+AC_STRUCT_TM
+
+# Checks for library functions.
+AC_FUNC_STRTOD
+AC_CHECK_FUNCS([memset], , AC_ERROR([memset not found in libc]))
+AC_CHECK_FUNCS([pow], , AC_CHECK_LIB(m, pow, , AC_ERROR([cannot find pow])) )
+AC_CHECK_LIB(z, zlibVersion, , AC_ERROR([zlib not installed]))
+
+case $host_os in
+  aix*)
+   LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG -D_ALL_SOURCE;;
+  *)
+   LIBPNG_DEFINES=-DPNG_CONFIGURE_LIBPNG;;
+esac
+AC_MSG_CHECKING(
+  [if assembler code in pnggccrd.c can be compiled without PNG_NO_MMX_CODE])
+AC_TRY_COMPILE(
+  [#include "$srcdir/pnggccrd.c"],
+  [return 0;],
+  AC_MSG_RESULT(yes)
+  LIBPNG_NO_MMX="",
+  AC_MSG_RESULT(no)
+  LIBPNG_NO_MMX=-DPNG_NO_MMX_CODE)
+LIBPNG_DEFINES=$LIBPNG_DEFINES\ $LIBPNG_NO_MMX
+AC_SUBST(LIBPNG_DEFINES)
+AC_SUBST(LIBPNG_NO_MMX)
+
+AC_MSG_CHECKING([if libraries can be versioned])
+GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
+if test "$GLD"; then
+    have_ld_version_script=yes
+    AC_MSG_RESULT(yes)
+else
+    have_ld_version_script=no
+    AC_MSG_RESULT(no)
+    AC_MSG_WARN(*** You have not enabled versioned symbols.)
+fi
+AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
+
+if test "$have_ld_version_script" = "yes"; then
+    AC_MSG_CHECKING([for symbol prefix])
+    SYMBOL_PREFIX=`echo "PREFIX=__USER_LABEL_PREFIX__" \
+                   | ${CPP-${CC-gcc} -E} - 2>&1 \
+                   | ${EGREP-grep} "^PREFIX=" \
+                   | ${SED-sed} "s:^PREFIX=::"`
+    AC_SUBST(SYMBOL_PREFIX)
+    AC_MSG_RESULT($SYMBOL_PREFIX)
+fi
+
+# Substitutions for .in files
+AC_SUBST(PNGLIB_VERSION)
+AC_SUBST(PNGLIB_MAJOR)
+AC_SUBST(PNGLIB_MINOR)
+AC_SUBST(PNGLIB_RELEASE)
+
+# Additional arguments (and substitutions)
+# Allow the pkg-config directory to be set
+AC_ARG_WITH(pkgconfigdir,
+	AC_HELP_STRING([--with-pkgconfigdir],
+	[Use the specified pkgconfig dir (default is libdir/pkgconfig)]),
+	[pkgconfigdir=${withval}],
+	[pkgconfigdir='${libdir}/pkgconfig'])
+
+AC_SUBST([pkgconfigdir])
+AC_MSG_NOTICE([pkgconfig directory is ${pkgconfigdir}])
+
+# Make the *-config binary config scripts optional
+AC_ARG_WITH(binconfigs,
+	AC_HELP_STRING([--with-binconfigs],
+		[Generate shell libpng-config scripts as well as pkg-config data]
+		[@<:@default=yes@:>@]),
+	[if test "${withval}" = no; then
+		binconfigs=
+		AC_MSG_NOTICE([libpng-config scripts will not be built])
+	else
+		binconfigs='${binconfigs}'
+	fi],
+	[binconfigs='${binconfigs}'])
+AC_SUBST([binconfigs])
+
+# Allow the old version number library, libpng.so, to be removed from
+# the build
+AC_ARG_WITH(libpng-compat,
+	AC_HELP_STRING([--with-libpng-compat],
+		[Generate the obsolete libpng.so library @<:@default=yes@:>@]),
+	[if test "${withval}" = no; then
+		compatlib=
+		AC_MSG_NOTICE([libpng.so will not be built])
+	else
+		compatlib=libpng.la
+	fi],
+	[compatlib=libpng.la])
+AC_SUBST([compatlib])
+
+# Config files, substituting as above
+AC_CONFIG_FILES([Makefile libpng.pc:scripts/libpng.pc-configure.in])
+AC_CONFIG_FILES([libpng-config:scripts/libpng-config.in],
+		[chmod +x libpng-config])
+
+AC_OUTPUT

contrib/gregbook/COPYING

@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
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+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
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+operating system on which the executable runs, unless that component
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+
+If distribution of executable or object code is made by offering
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+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
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+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
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+
+It is not the purpose of this section to induce you to infringe any
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+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year  name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.

contrib/gregbook/LICENSE

@@ -1,12 +1,19 @@
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2008 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -23,4 +30,21 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------

contrib/gregbook/Makefile.mingw32

@@ -0,0 +1,130 @@
+# Sample makefile for rpng-win / rpng2-win / wpng using mingw32-gcc and make.
+# Greg Roelofs
+# Last modified:  2 June 2007
+#
+#	The programs built by this makefile are described in the book,
+#	"PNG:  The Definitive Guide," by Greg Roelofs (O'Reilly and
+#	Associates, 1999).  Go buy a copy, eh?  Well, OK, it's not
+#	generally for sale anymore, but it's the thought that counts,
+#	right?  (Hint:  http://www.libpng.org/pub/png/book/ )
+#
+# Invoke this makefile from a DOS-prompt window via:
+#
+#	make -f Makefile.mingw32
+#
+# This makefile assumes libpng and zlib have already been built or downloaded
+# and are in subdirectories at the same level as the current subdirectory
+# (as indicated by the PNGDIR and ZDIR macros below).  It makes no assumptions
+# at all about the mingw32 installation tree (W32DIR).  Edit as appropriate.
+#
+# Note that the names of the dynamic and static libpng and zlib libraries
+# used below may change in later releases of the libraries.  This makefile
+# builds both statically and dynamically linked executables by default.
+# (You need only one set, but for testing it can be handy to have both.)
+
+
+# macros --------------------------------------------------------------------
+
+#PNGDIR = ../..#		for libpng-x.y.z/contrib/gregbook builds
+PNGDIR = ../libpng-win32
+PNGINC = -I$(PNGDIR)
+PNGLIBd = $(PNGDIR)/libpng.dll.a	# dynamically linked
+PNGLIBs = $(PNGDIR)/libpng.a		# statically linked, local libpng
+
+#ZDIR = ../../../zlib-win32#	for libpng-x.y.z/contrib/gregbook builds
+ZDIR = ../zlib-win32
+ZINC = -I$(ZDIR)
+ZLIBd = $(ZDIR)/libzdll.a
+ZLIBs = $(ZDIR)/libz.a
+
+# change this to be the path where mingw32 installs its stuff:
+W32DIR =
+#W32DIR = /usr/local/cross-tools/i386-mingw32msvc
+W32INC = -I$(W32DIR)/include
+W32LIB = $(W32DIR)/lib/libuser32.a $(W32DIR)/lib/libgdi32.a
+
+CC = gcc
+#CC = i386-mingw32msvc-gcc #	e.g., Linux -> Win32 cross-compilation
+LD = $(CC)
+RM = rm -f
+CFLAGS = -O -Wall $(INCS) $(MINGW_CCFLAGS)
+# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
+# [-ansi, -pedantic and -W can also be used]
+LDFLAGS = $(MINGW_LDFLAGS)
+O = .o
+E = .exe
+
+INCS = $(PNGINC) $(ZINC) $(W32INC)
+RLIBSd = $(PNGLIBd) $(ZLIBd) $(W32LIB) -lm
+RLIBSs = $(PNGLIBs) $(ZLIBs) $(W32LIB) -lm
+WLIBSd = $(PNGLIBd) $(ZLIBd)
+WLIBSs = $(PNGLIBs) $(ZLIBs)
+
+RPNG   = rpng-win
+RPNG2  = rpng2-win
+WPNG   = wpng
+
+ROBJSd  = $(RPNG)$(O) readpng.pic$(O)
+ROBJS2d = $(RPNG2)$(O) readpng2.pic$(O)
+WOBJSd  = $(WPNG)$(O) writepng.pic$(O)
+
+RPNGs  = $(RPNG)-static
+RPNG2s = $(RPNG2)-static
+WPNGs  = $(WPNG)-static
+
+ROBJSs  = $(RPNG)$(O) readpng$(O)
+ROBJS2s = $(RPNG2)$(O) readpng2$(O)
+WOBJSs  = $(WPNG)$(O) writepng$(O)
+
+STATIC_EXES  = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
+DYNAMIC_EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
+
+EXES = $(STATIC_EXES) $(DYNAMIC_EXES)
+
+
+# implicit make rules -------------------------------------------------------
+
+.c$(O):
+	$(CC) -c $(CFLAGS) $<
+
+%.pic$(O): %.c
+	$(CC) -c $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
+
+
+# dependencies --------------------------------------------------------------
+
+all:  $(EXES)
+
+$(RPNGs)$(E): $(ROBJSs)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJSs) $(RLIBSs)
+
+$(RPNG)$(E): $(ROBJSd)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJSd) $(RLIBSd)
+
+$(RPNG2s)$(E): $(ROBJS2s)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS2s) $(RLIBSs)
+
+$(RPNG2)$(E): $(ROBJS2d)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS2d) $(RLIBSd)
+
+$(WPNGs)$(E): $(WOBJSs)
+	$(LD) $(LDFLAGS) -o $@ $(WOBJSs) $(WLIBSs)
+
+$(WPNG)$(E): $(WOBJSd)
+	$(LD) $(LDFLAGS) -o $@ $(WOBJSd) $(WLIBSd)
+
+$(RPNG)$(O):	$(RPNG).c readpng.h
+$(RPNG2)$(O):	$(RPNG2).c readpng2.h
+$(WPNG)$(O):	$(WPNG).c writepng.h
+
+readpng$(O) readpng.pic$(O):	readpng.c readpng.h
+readpng2$(O) readpng2.pic$(O):	readpng2.c readpng2.h
+writepng$(O) writepng.pic$(O):	writepng.c writepng.h
+
+
+# maintenance ---------------------------------------------------------------
+
+clean:
+	$(RM) $(EXES)
+	$(RM) $(ROBJSs) $(ROBJS2s) $(WOBJSs)
+	$(RM) $(ROBJSd) $(ROBJS2d) $(WOBJSd)

contrib/gregbook/Makefile.sgi

@@ -0,0 +1,104 @@
+# Sample makefile for rpng-x / rpng2-x / wpng for SGI using cc and make.
+# Greg Roelofs
+# Last modified:  7 March 2002
+#
+#	The programs built by this makefile are described in the book,
+#	"PNG:  The Definitive Guide," by Greg Roelofs (O'Reilly and
+#	Associates, 1999).  Go buy a copy, eh?  Buy some for friends
+#	and family, too.  (Not that this is a blatant plug or anything.)
+#
+# Invoke this makefile from a shell prompt in the usual way; for example:
+#
+#	make -f Makefile.sgi
+#
+# This makefile assumes libpng and zlib have already been built or downloaded
+# and are both installed in /usr/local/{include,lib} (as indicated by the
+# PNG* and Z* macros below).  Edit as appropriate--choose only ONE each of
+# the PNGINC, PNGLIB, ZINC and ZLIB lines.
+#
+# This makefile builds dynamically linked executables (against libpng and zlib,
+# that is), but that can be changed by uncommenting the appropriate PNGLIB and
+# ZLIB lines.
+
+
+# macros --------------------------------------------------------------------
+
+PNGINC = -I/usr/local/include/libpng12
+PNGLIB = -L/usr/local/lib -lpng12	  # dynamically linked against libpng
+#PNGLIB = /usr/local/lib/libpng12.a # statically linked against libpng
+# or:
+#PNGINC = -I../..
+#PNGLIB = -L../.. -lpng
+#PNGLIB = ../../libpng.a
+
+ZINC = -I/usr/local/include
+ZLIB = -L/usr/local/lib -lz		# dynamically linked against zlib
+#ZLIB = /usr/local/lib/libz.a		# statically linked against zlib
+#ZINC = -I../zlib
+#ZLIB = -L../zlib -lz
+#ZLIB = ../../../zlib/libz.a
+
+XINC = -I/usr/include/X11		# old-style, stock X distributions
+XLIB = -L/usr/lib/X11 -lX11
+#XINC = -I/usr/openwin/include    	# Sun workstations (OpenWindows)
+#XLIB = -L/usr/openwin/lib -lX11
+#XINC = -I/usr/X11R6/include		# new X distributions (XFree86, etc.)
+#XLIB = -L/usr/X11R6/lib -lX11
+
+INCS = $(PNGINC) $(ZINC) $(XINC)
+RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm
+WLIBS = $(PNGLIB) $(ZLIB)
+
+CC = cc
+LD = cc
+RM = rm -f
+# ABI must be the same as that used to build libpng.
+ABI=
+CFLAGS = $(ABI) -O -fullwarn $(INCS)
+LDFLAGS = $(ABI)
+O = .o
+E =
+
+RPNG  = rpng-x
+RPNG2 = rpng2-x
+WPNG  = wpng
+
+ROBJS  = $(RPNG)$(O) readpng$(O)
+ROBJS2 = $(RPNG2)$(O) readpng2$(O)
+WOBJS  = $(WPNG)$(O) writepng$(O)
+
+EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
+
+
+# implicit make rules -------------------------------------------------------
+
+.c$(O):
+	$(CC) -c $(CFLAGS) $<
+
+
+# dependencies --------------------------------------------------------------
+
+all:  $(EXES)
+
+$(RPNG)$(E): $(ROBJS)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS)
+
+$(RPNG2)$(E): $(ROBJS2)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS)
+
+$(WPNG)$(E): $(WOBJS)
+	$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS)
+
+$(RPNG)$(O):	$(RPNG).c readpng.h
+$(RPNG2)$(O):	$(RPNG2).c readpng2.h
+$(WPNG)$(O):	$(WPNG).c writepng.h
+
+readpng$(O):	readpng.c readpng.h
+readpng2$(O):	readpng2.c readpng2.h
+writepng$(O):	writepng.c writepng.h
+
+
+# maintenance ---------------------------------------------------------------
+
+clean:
+	$(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)

contrib/gregbook/Makefile.unx

@@ -1,73 +1,92 @@
 # Sample makefile for rpng-x / rpng2-x / wpng using gcc and make.
 # Greg Roelofs
-# Last modified:  28 February 2000
+# Last modified:  2 June 2007
 #
 #	The programs built by this makefile are described in the book,
 #	"PNG:  The Definitive Guide," by Greg Roelofs (O'Reilly and
-#	Associates, 1999).  Go buy a copy, eh?  Buy some for friends
-#	and family, too.  (Not that this is a blatant plug or anything.)
+#	Associates, 1999).  Go buy a copy, eh?  Well, OK, it's not
+#	generally for sale anymore, but it's the thought that counts,
+#	right?  (Hint:  http://www.libpng.org/pub/png/book/ )
 #
 # Invoke this makefile from a shell prompt in the usual way; for example:
 #
 #	make -f Makefile.unx
 #
 # This makefile assumes libpng and zlib have already been built or downloaded
-# and are both installed in /usr/local/{include,lib} (as indicated by the
-# PNG* and Z* macros below).  Edit as appropriate--choose only ONE each of
-# the PNGINC, PNGLIB, ZINC and ZLIB lines.
+# and are installed in /usr/local/{include,lib} or as otherwise indicated by
+# the PNG* and Z* macros below.  Edit as appropriate--choose only ONE each of
+# the PNGINC, PNGLIBd, PNGLIBs, ZINC, ZLIBd and ZLIBs lines.
 #
-# This makefile builds statically linked executables (against libpng and zlib,
-# that is), but that can be changed by uncommenting the appropriate PNGLIB and
-# ZLIB lines.
+# This makefile builds both dynamically and statically linked executables
+# (against libpng and zlib, that is), but that can be changed by modifying
+# the "EXES =" line.  (You need only one set, but for testing it can be handy
+# to have both.)
 
 
 # macros --------------------------------------------------------------------
 
-PNGINC = -I/usr/local/include
-#PNGLIB = -L/usr/local/lib -lpng	# dynamically linked against libpng
-PNGLIB = /usr/local/lib/libpng.a	# statically linked against libpng
+#PNGDIR = /usr/local/lib
+#PNGINC = -I/usr/local/include/libpng12
+#PNGLIBd = -L$(PNGDIR) -lpng12 # dynamically linked, installed libpng
+#PNGLIBs = $(PNGDIR)/libpng12.a # statically linked, installed libpng
 # or:
-#PNGINC = -I../..
-#PNGLIB = -L../.. -lpng
-#PNGLIB = ../../libpng.a
+PNGDIR = ../..#	this one is for libpng-x.y.z/contrib/gregbook builds
+#PNGDIR = ../libpng
+PNGINC = -I$(PNGDIR)
+PNGLIBd = -Wl,-rpath,$(PNGDIR) -L$(PNGDIR) -lpng12	# dynamically linked
+PNGLIBs = $(PNGDIR)/libpng.a		# statically linked, local libpng
 
+ZDIR = /usr/local/lib
+#ZDIR = /usr/lib64
 ZINC = -I/usr/local/include
-#ZLIB = -L/usr/local/lib -lz		# dynamically linked against zlib
-ZLIB = /usr/local/lib/libz.a		# statically linked against zlib
-#ZINC = -I../zlib
-#ZLIB = -L../zlib -lz
-#ZLIB = ../../../zlib/libz.a
+ZLIBd = -L$(ZDIR) -lz			# dynamically linked against zlib
+ZLIBs = $(ZDIR)/libz.a			# statically linked against zlib
+# or:
+#ZDIR = ../zlib
+#ZINC = -I$(ZDIR)
+#ZLIBd = -Wl,-rpath,$(ZDIR) -L$(ZDIR) -lz  # -rpath allows in-place testing
+#ZLIBs = $(ZDIR)/libz.a
 
-#XINC = -I/usr/include/X11		# old-style, stock X distributions
-#XLIB = -L/usr/lib/X11 -lX11
-#XINC = -I/usr/openwin/include    	# Sun workstations (OpenWindows)
+#XINC = -I/usr/include			# old-style, stock X distributions
+#XLIB = -L/usr/lib/X11 -lX11		#  (including SGI IRIX)
+#XINC = -I/usr/openwin/include		# Sun workstations (OpenWindows)
 #XLIB = -L/usr/openwin/lib -lX11
-XINC = -I/usr/X11R6/include		# new X distributions (XFree86, etc.)
+XINC = -I/usr/X11R6/include		# new X distributions (X.org, etc.)
 XLIB = -L/usr/X11R6/lib -lX11
+#XLIB = -L/usr/X11R6/lib64 -lX11	# e.g., Red Hat on AMD64
 
 INCS = $(PNGINC) $(ZINC) $(XINC)
-RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm
-WLIBS = $(PNGLIB) $(ZLIB)
+RLIBSd = $(PNGLIBd) $(ZLIBd) $(XLIB) -lm
+RLIBSs = $(PNGLIBs) $(ZLIBs) $(XLIB) -lm
+WLIBSd = $(PNGLIBd) $(ZLIBd) -lm
+WLIBSs = $(PNGLIBs) $(ZLIBs)
 
 CC = gcc
 LD = gcc
 RM = rm -f
-CFLAGS = -O -Wall $(INCS)
+CFLAGS = -O -Wall $(INCS) -DFEATURE_LOOP
 # [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
 # [-ansi, -pedantic and -W can also be used]
 LDFLAGS =
 O = .o
 E =
 
-RPNG  = rpng-x
-RPNG2 = rpng2-x
-WPNG  = wpng
+RPNG   = rpng-x
+RPNG2  = rpng2-x
+WPNG   = wpng
+
+RPNGs  = $(RPNG)-static
+RPNG2s = $(RPNG2)-static
+WPNGs  = $(WPNG)-static
 
 ROBJS  = $(RPNG)$(O) readpng$(O)
 ROBJS2 = $(RPNG2)$(O) readpng2$(O)
 WOBJS  = $(WPNG)$(O) writepng$(O)
 
-EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
+STATIC_EXES  = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
+DYNAMIC_EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
+
+EXES = $(STATIC_EXES) $(DYNAMIC_EXES)
 
 
 # implicit make rules -------------------------------------------------------
@@ -80,14 +99,23 @@ EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
 
 all:  $(EXES)
 
+$(RPNGs)$(E): $(ROBJS)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBSs)
+
 $(RPNG)$(E): $(ROBJS)
-	$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBSd)
+
+$(RPNG2s)$(E): $(ROBJS2)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBSs)
 
 $(RPNG2)$(E): $(ROBJS2)
-	$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBSd)
+
+$(WPNGs)$(E): $(WOBJS)
+	$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBSs)
 
 $(WPNG)$(E): $(WOBJS)
-	$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS)
+	$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBSd)
 
 $(RPNG)$(O):	$(RPNG).c readpng.h
 $(RPNG2)$(O):	$(RPNG2).c readpng2.h

contrib/gregbook/Makefile.w32

@@ -1,11 +1,12 @@
 # Sample makefile for rpng-win / rpng2-win / wpng using MSVC and NMAKE.
 # Greg Roelofs
-# Last modified:  16 February 1999
+# Last modified:  2 June 2007
 #
 #	The programs built by this makefile are described in the book,
 #	"PNG:  The Definitive Guide," by Greg Roelofs (O'Reilly and
-#	Associates, 1999).  Go buy a copy, eh?  Buy some for friends
-#	and family, too.  (Not that this is a blatant plug or anything.)
+#	Associates, 1999).  Go buy a copy, eh?  Well, OK, it's not
+#	generally for sale anymore, but it's the thought that counts,
+#	right?  (Hint:  http://www.libpng.org/pub/png/book/ )
 #
 # Invoke this makefile from a DOS prompt window via:
 #
@@ -32,12 +33,12 @@
 
 # macros --------------------------------------------------------------------
 
-PNGPATH = ../..
+PNGPATH = ../libpng
 PNGINC = -I$(PNGPATH)
 #PNGLIB = $(PNGPATH)/pngdll.lib
 PNGLIB = $(PNGPATH)/libpng.lib
 
-ZPATH = ../../../zlib
+ZPATH = ../zlib
 ZINC = -I$(ZPATH)
 #ZLIB = $(ZPATH)/zlibdll.lib
 ZLIB = $(ZPATH)/zlibstat.lib
@@ -53,7 +54,7 @@ CC = cl
 LD = link
 RM = del
 CFLAGS = -nologo -O -W3 $(INCS) $(cvars)
-# [note that -Wall is an MSVC-specific compilation flag ("all warnings on")]
+# [note that -W3 is an MSVC-specific compilation flag ("all warnings on")]
 # [see %devstudio%\vc\include\win32.mak for cvars macro definition]
 O = .obj
 E = .exe

contrib/gregbook/README

@@ -16,14 +16,14 @@ of PBMPLUS/NetPBM) and converts them to PNG.
 The source code for all three demo programs currently compiles under
 Unix, OpenVMS, and 32-bit Windows.  (Special thanks to Martin Zinser,
 zinser@decus.de, for making the necessary changes for OpenVMS and for
-providing an appropriate build script.)  Build instructions can be
-found below.
+providing an appropriate build script.)  Build instructions can be found
+below.
 
 Files:
 
    README             this file
-   README.w32         additional Windows-specific information
-   LICENSE            terms of distribution and reuse (BSD-like)
+   LICENSE            terms of distribution and reuse (BSD-like or GNU GPL)
+   COPYING            GNU General Public License (GPL)
 
    Makefile.unx       Unix makefile
    Makefile.w32       Windows (MSVC) makefile
@@ -45,26 +45,27 @@ Files:
 
    toucan.png         transparent PNG for testing (by Stefan Schneider)
 
-Note that the programs are designed to be functional, but their primary
-purpose is to demonstrate how to use libpng to add PNG support to other
-programs.  As such, their user interfaces are crude and definitely not
-intended for everyday use.
+Note that, although the programs are designed to be functional, their
+primary purpose is to illustrate how to use libpng to add PNG support to
+other programs.  As such, their user interfaces are crude and definitely
+are not intended for everyday use.
 
-Please see http://www.cdrom.com/pub/png/pngbook.html for further infor-
+Please see http://www.libpng.org/pub/png/pngbook.html for further infor-
 mation and links to the latest version of the source code, and Chapters
 13-15 of the book for detailed discussion of the three programs.
 
 Greg Roelofs
-19 March 2000
+http://pobox.com/~newt/greg_contact.html
+16 March 2008
 
 
 BUILD INSTRUCTIONS
 
- - Prerequisites:
+ - Prerequisites (in order of compilation):
 
-      - zlib		ftp://ftp.cdrom.com/pub/infozip/zlib/zlib.html
-      - libpng		http://www.cdrom.com/pub/png/pngcode.html
-      - pngbook		http://www.cdrom.com/pub/png/book/sources.html
+      - zlib		http://zlib.net/
+      - libpng		http://www.libpng.org/pub/png/libpng.html
+      - pngbook		http://www.libpng.org/pub/png/book/sources.html
 
      The pngbook demo programs are explicitly designed to demonstrate proper
      coding techniques for using the libpng reference library.  As a result,
@@ -128,11 +129,13 @@ BUILD INSTRUCTIONS
 
      The result should be three executables:  rpng-win.exe, rpng2-win.exe,
      and wpng.exe.  Copy them somewhere in your PATH or run them from the
-     current folder.  Unlike the Unix versions, the two windowed programs
-     (rpng and rpng2) do not display a usage screen when invoked without
-     command-line arguments; see README.w32 for brief help or the book for
-     details.  Note that the programs use the Unix-style "-" character to
-     specify options, instead of the more common DOS/Windows "/" character.
+     current folder.  Like the Unix versions, the two windowed programs
+     (rpng and rpng2) now display a usage screen in a console window when
+     invoked without command-line arguments; this is new behavior as of
+     the June 2001 release.  Note that the programs use the Unix-style "-"
+     character to specify options, instead of the more common DOS/Windows
+     "/" character.  (For example:  "rpng2-win -bgpat 4 foo.png", not
+     "rpng2-win /bgpat 4 foo.png")
 
 
  - OpenVMS:
@@ -148,9 +151,9 @@ BUILD INSTRUCTIONS
      To run the programs, they probably first need to be set up as "foreign
      symbols," with "disk" and "dir" set appropriately:
 
-     $ rpng == "$disk:[dir]rpng-x.exe"
+     $ rpng  == "$disk:[dir]rpng-x.exe"
      $ rpng2 == "$disk:[dir]rpng2-x.exe"
-     $ wpng == "$disk:[dir]wpng.exe"
+     $ wpng  == "$disk:[dir]wpng.exe"
 
      All three will print a basic usage screen when run without any command-
      line arguments; see the book for more details.  Note that the options
@@ -174,7 +177,7 @@ RUNNING THE PROGRAMS:  (VERY) BRIEF INTRO
      wpng is a purely command-line image converter from binary PBMPLUS/NetPBM
      format (.pgm or .ppm) to PNG; for example,
 
-	wpng -time < toucan.ppm > toucan.png
+	wpng -time < toucan-notrans.ppm > toucan-notrans.png
 
      would convert the specified PPM file (using redirection) to PNG, auto-
      matically setting the PNG modification-time chunk.

contrib/gregbook/README.w32

@@ -1,53 +0,0 @@
-See the main README file for basic instructions on compiling and running
-the programs.  See http://www.cdrom.com/pub/png/pngbook.html for further
-information and links to the source code, and Chapters 13-15 of the book
-for detailed discussion of the three programs.
-
-Since the two viewers, rpng and rpng2, are both designed to write infor-
-mation to the console (i.e., a DOS-window command line) while displaying
-the image in a graphical window--and since I haven't yet figured out how
-to do that under Windows--here are the usage screens for the two programs:
-
-
-rpng-win 1.02 of 19 March 2000:  Simple PNG Viewer for Windows
-   Compiled with libpng 1.0.5; using libpng 1.0.5.
-   Compiled with zlib 1.1.3; using zlib 1.1.3.
-
-Usage:  rpng-win [-gamma exp] [-bgcolor bg] file.png
-    exp 	transfer-function exponent (``gamma'') of the display
-		  system in floating-point format (e.g., ``2.2''); equal
-		  to the product of the lookup-table exponent (varies)
-		  and the CRT exponent (usually 2.2); must be positive
-    bg  	desired background color in 7-character hex RGB format
-		  (e.g., ``#ff7f00'' for orange:  same as HTML colors);
-		  used with transparent images
-
-Press Q, Esc or mouse button 1 after image is displayed to quit.
-
-
-rpng2-win 1.04 of 19 March 2000:  Progressive PNG Viewer for Windows
-   Compiled with libpng 1.0.5; using libpng 1.0.5.
-   Compiled with zlib 1.1.3; using zlib 1.1.3.
-
-Usage:  rpng2-win [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing] file.png
-
-    exp 	transfer-function exponent (``gamma'') of the display
-		  system in floating-point format (e.g., ``2.2''); equal
-		  to the product of the lookup-table exponent (varies)
-		  and the CRT exponent (usually 2.2); must be positive
-    bg  	desired background color in 7-character hex RGB format
-		  (e.g., ``#ff7f00'' for orange:  same as HTML colors);
-		  used with transparent images; overrides -bgpat
-    pat 	desired background pattern number (1-16); used with
-		  transparent images; overrides -bgcolor
-    -timing	enables delay for every block read, to simulate modem
-		  download of image (~36 Kbps)
-
-Press Q, Esc or mouse button 1 after image is displayed to quit.
-
-
-The usage screen for the third (non-windowed) program, wpng, can be seen
-simply by invoking it without any parameters (``wpng'').
-
-Greg Roelofs
-19 March 2000

contrib/gregbook/makevms.com

@@ -9,21 +9,22 @@ $!    Set locations where zlib and libpng sources live.
 $!
 $ zpath   = ""
 $ pngpath = ""
-$ if f$search("[-.zlib]zlib.h").nes."" then zpath = "[-.zlib]"
-$ if f$search("[-.libpng]png.h").nes."" then pngpath = "[-.libpng]"
 $!
 $ if f$search("[---.zlib]zlib.h").nes."" then zpath = "[---.zlib]"
 $ if f$search("[--]png.h").nes."" then pngpath = "[--]"
 $!
+$ if f$search("[-.zlib]zlib.h").nes."" then zpath = "[-.zlib]"
+$ if f$search("[-.libpng]png.h").nes."" then pngpath = "[-.libpng]"
+$!
 $ if zpath .eqs. ""
 $ then
-$   write sys$output "Zlib include not found. Exiting..."
+$   write sys$output "zlib include not found. Exiting..."
 $   exit 2
 $ endif 
 $!
 $ if pngpath .eqs. ""
 $ then
-$   write sys$output "Libpng include not found. Exiting..."
+$   write sys$output "libpng include not found. Exiting..."
 $   exit 2
 $ endif 
 $!

contrib/gregbook/readpng.c

@@ -4,13 +4,20 @@
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2007 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 #include <stdio.h>
@@ -69,7 +93,7 @@ int readpng_init(FILE *infile, ulg *pWidth, ulg *pHeight)
      * have used slightly more general png_sig_cmp() function instead */
 
     fread(sig, 1, 8, infile);
-    if (!png_check_sig(sig, 8))
+    if (png_sig_cmp(sig, 0, 8))
         return 1;   /* bad signature */
 
 
@@ -239,7 +263,7 @@ uch *readpng_get_image(double display_exponent, int *pChannels, ulg *pRowbytes)
         return NULL;
     }
 
-    Trace((stderr, "readpng_get_image:  rowbytes = %ld, height = %ld\n", rowbytes, height));
+    Trace((stderr, "readpng_get_image:  channels = %d, rowbytes = %ld, height = %ld\n", *pChannels, rowbytes, height));
 
 
     /* set the individual row_pointers to point at the correct offsets */

contrib/gregbook/readpng.h

@@ -4,13 +4,20 @@
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2007 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 #ifndef TRUE

contrib/gregbook/readpng2.c

@@ -4,13 +4,20 @@
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2007 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 
@@ -49,8 +73,83 @@ static void readpng2_error_handler(png_structp png_ptr, png_const_charp msg);
 
 void readpng2_version_info(void)
 {
-    fprintf(stderr, "   Compiled with libpng %s; using libpng %s.\n",
-      PNG_LIBPNG_VER_STRING, png_libpng_ver);
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \
+    (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__)) && \
+    defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
+    /*
+     * WARNING:  This preprocessor approach means that the following code
+     *           cannot be used with a libpng DLL older than 1.2.0--the
+     *           compiled-in symbols for the new functions will not exist.
+     *           (Could use dlopen() and dlsym() on Unix and corresponding
+     *           calls for Windows, but not portable...)
+     */
+    {
+        int mmxsupport = png_mmx_support();
+        if (mmxsupport < 0)
+            fprintf(stderr, "   Compiled with libpng %s; using libpng %s "
+              "without MMX support.\n", PNG_LIBPNG_VER_STRING, png_libpng_ver);
+        else {
+            int compilerID;
+            png_uint_32 mmx_mask = png_get_mmx_flagmask(
+              PNG_SELECT_READ | PNG_SELECT_WRITE, &compilerID);
+
+            fprintf(stderr, "   Compiled with libpng %s; using libpng %s "
+              "with MMX support\n   (%s version).", PNG_LIBPNG_VER_STRING,
+              png_libpng_ver, compilerID == 1? "MSVC++" :
+              (compilerID == 2? "GNU C" : "unknown"));
+            fprintf(stderr, "  Processor (x86%s) %s MMX instructions.\n",
+#if defined(__x86_64__)
+              "_64",
+#else
+              "",
+#endif
+              mmxsupport? "supports" : "does not support");
+            if (mmxsupport > 0) {
+                int num_optims = 0;
+
+                fprintf(stderr,
+                  "      Potential MMX optimizations supported by libpng:\n");
+                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)
+                    ++num_optims;
+                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_FILTER_UP)
+                    ++num_optims;
+                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_FILTER_AVG)
+                    ++num_optims;
+                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)
+                    ++num_optims;
+                if (num_optims)
+                    fprintf(stderr,
+                      "         decoding %s row filters (reading)\n",
+                      (num_optims == 4)? "all non-trivial" : "some");
+                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW) {
+                    fprintf(stderr, "         combining rows (reading)\n");
+                    ++num_optims;
+                }
+                if (mmx_mask & PNG_ASM_FLAG_MMX_READ_INTERLACE) {
+                    fprintf(stderr,
+                      "         expanding interlacing (reading)\n");
+                    ++num_optims;
+                }
+                mmx_mask &= ~( 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 (mmx_mask) {
+                    fprintf(stderr, "         other (unknown)\n");
+                    ++num_optims;
+                }
+                if (num_optims == 0)
+                    fprintf(stderr, "         (none)\n");
+            }
+        }
+    }
+#else
+    fprintf(stderr, "   Compiled with libpng %s; using libpng %s "
+      "without MMX support.\n", PNG_LIBPNG_VER_STRING, png_libpng_ver);
+#endif
+
     fprintf(stderr, "   Compiled with zlib %s; using zlib %s.\n",
       ZLIB_VERSION, zlib_version);
 }
@@ -60,7 +159,7 @@ void readpng2_version_info(void)
 
 int readpng2_check_sig(uch *sig, int num)
 {
-    return png_check_sig(sig, num);
+    return !png_sig_cmp(sig, 0, num);
 }
 
 
@@ -104,6 +203,38 @@ int readpng2_init(mainprog_info *mainprog_ptr)
     }
 
 
+#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
+    /* prepare the reader to ignore all recognized chunks whose data won't be
+     * used, i.e., all chunks recognized by libpng except for IHDR, PLTE, IDAT,
+     * IEND, tRNS, bKGD, gAMA, and sRGB (small performance improvement) */
+    {
+        /* These byte strings were copied from png.h.  If a future libpng
+         * version recognizes more chunks, add them to this list.  If a
+         * future version of readpng2.c recognizes more chunks, delete them
+         * from this list. */
+        static const png_byte chunks_to_ignore[] = {
+             99,  72,  82,  77, '\0',  /* cHRM */
+            104,  73,  83,  84, '\0',  /* hIST */
+            105,  67,  67,  80, '\0',  /* iCCP */
+            105,  84,  88, 116, '\0',  /* iTXt */
+            111,  70,  70, 115, '\0',  /* oFFs */
+            112,  67,  65,  76, '\0',  /* pCAL */
+            112,  72,  89, 115, '\0',  /* pHYs */
+            115,  66,  73,  84, '\0',  /* sBIT */
+            115,  67,  65,  76, '\0',  /* sCAL */
+            115,  80,  76,  84, '\0',  /* sPLT */
+            115,  84,  69,  82, '\0',  /* sTER */
+            116,  69,  88, 116, '\0',  /* tEXt */
+            116,  73,  77,  69, '\0',  /* tIME */
+            122,  84,  88, 116, '\0'   /* zTXt */
+        };
+
+        png_set_keep_unknown_chunks(png_ptr, 1 /* PNG_HANDLE_CHUNK_NEVER */,
+          chunks_to_ignore, sizeof(chunks_to_ignore)/5);
+    }
+#endif /* PNG_UNKNOWN_CHUNKS_SUPPORTED */
+
+
     /* instead of doing png_init_io() here, now we set up our callback
      * functions for progressive decoding */
 
@@ -111,6 +242,96 @@ int readpng2_init(mainprog_info *mainprog_ptr)
       readpng2_info_callback, readpng2_row_callback, readpng2_end_callback);
 
 
+    /*
+     * may as well enable or disable MMX routines here, if supported;
+     *
+     * to enable all:  mask = png_get_mmx_flagmask (
+     *                   PNG_SELECT_READ | PNG_SELECT_WRITE, &compilerID);
+     *                 flags = png_get_asm_flags (png_ptr);
+     *                 flags |= mask;
+     *                 png_set_asm_flags (png_ptr, flags);
+     *
+     * to disable all:  mask = png_get_mmx_flagmask (
+     *                   PNG_SELECT_READ | PNG_SELECT_WRITE, &compilerID);
+     *                  flags = png_get_asm_flags (png_ptr);
+     *                  flags &= ~mask;
+     *                  png_set_asm_flags (png_ptr, flags);
+     */
+
+#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__)) && \
+    defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
+    /*
+     * WARNING:  This preprocessor approach means that the following code
+     *           cannot be used with a libpng DLL older than 1.2.0--the
+     *           compiled-in symbols for the new functions will not exist.
+     *           (Could use dlopen() and dlsym() on Unix and corresponding
+     *           calls for Windows, but not portable...)
+     */
+    {
+#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
+        png_uint_32 mmx_disable_mask = 0;
+        png_uint_32 asm_flags, mmx_mask;
+        int compilerID;
+
+        if (mainprog_ptr->nommxfilters)
+            mmx_disable_mask |= ( 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 (mainprog_ptr->nommxcombine)
+            mmx_disable_mask |= PNG_ASM_FLAG_MMX_READ_COMBINE_ROW;
+        if (mainprog_ptr->nommxinterlace)
+            mmx_disable_mask |= PNG_ASM_FLAG_MMX_READ_INTERLACE;
+        asm_flags = png_get_asm_flags(png_ptr);
+        png_set_asm_flags(png_ptr, asm_flags & ~mmx_disable_mask);
+
+
+        /* Now query libpng's asm settings, just for yuks.  Note that this
+         * differs from the querying of its *potential* MMX capabilities
+         * in readpng2_version_info(); this is true runtime verification. */
+
+        asm_flags = png_get_asm_flags(png_ptr);
+        mmx_mask = png_get_mmx_flagmask(PNG_SELECT_READ | PNG_SELECT_WRITE,
+          &compilerID);
+        if (asm_flags & PNG_ASM_FLAG_MMX_SUPPORT_COMPILED)
+            fprintf(stderr,
+              "  MMX support (%s version) is compiled into libpng\n",
+              compilerID == 1? "MSVC++" :
+              (compilerID == 2? "GNU C" : "unknown"));
+        else
+            fprintf(stderr, "  MMX support is not compiled into libpng\n");
+        fprintf(stderr, "  MMX instructions are %ssupported by CPU\n",
+          (asm_flags & PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU)? "" : "not ");
+        fprintf(stderr, "  MMX read support for combining rows is %sabled\n",
+          (asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)? "en" : "dis");
+        fprintf(stderr,
+          "  MMX read support for expanding interlacing is %sabled\n",
+          (asm_flags & PNG_ASM_FLAG_MMX_READ_INTERLACE)? "en" : "dis");
+        fprintf(stderr, "  MMX read support for \"sub\" filter is %sabled\n",
+          (asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)? "en" : "dis");
+        fprintf(stderr, "  MMX read support for \"up\" filter is %sabled\n",
+          (asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP)? "en" : "dis");
+        fprintf(stderr, "  MMX read support for \"avg\" filter is %sabled\n",
+          (asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG)? "en" : "dis");
+        fprintf(stderr, "  MMX read support for \"Paeth\" filter is %sabled\n",
+          (asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)? "en" : "dis");
+        asm_flags &= (mmx_mask & ~( 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 (asm_flags)
+            fprintf(stderr,
+              "  additional MMX support is also enabled (0x%02lx)\n",
+              asm_flags);
+#else  /* !PNG_ASSEMBLER_CODE_SUPPORTED */
+        fprintf(stderr, "  MMX querying is disabled in libpng.\n");
+#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */
+    }
+#endif
+
+
     /* make sure we save our pointers for use in readpng2_decode_data() */
 
     mainprog_ptr->png_ptr = png_ptr;
@@ -158,6 +379,7 @@ static void readpng2_info_callback(png_structp png_ptr, png_infop info_ptr)
 {
     mainprog_info  *mainprog_ptr;
     int  color_type, bit_depth;
+    png_uint_32 width, height;
     double  gamma;
 
 
@@ -193,8 +415,10 @@ static void readpng2_info_callback(png_structp png_ptr, png_infop info_ptr)
 
     /* this is just like in the non-progressive case */
 
-    png_get_IHDR(png_ptr, info_ptr, &mainprog_ptr->width,
-      &mainprog_ptr->height, &bit_depth, &color_type, NULL, NULL, NULL);
+    png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
+       NULL, NULL, NULL);
+    mainprog_ptr->width = (ulg)width;
+    mainprog_ptr->height = (ulg)height;
 
 
     /* since we know we've read all of the PNG file's "header" (i.e., up

contrib/gregbook/readpng2.h

@@ -4,13 +4,20 @@
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2008 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 #ifndef TRUE
@@ -45,6 +69,12 @@
 #  define Trace(x)  ;
 #endif
 
+enum rpng2_states {
+    kPreInit = 0,
+    kWindowInit,
+    kDone
+};
+
 typedef unsigned char   uch;
 typedef unsigned short  ush;
 typedef unsigned long   ulg;
@@ -66,7 +96,12 @@ typedef struct _mainprog_info {
     int rowbytes;
     int channels;
     int need_bgcolor;
-    int done;
+#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
+    int nommxfilters;
+    int nommxcombine;
+    int nommxinterlace;
+#endif
+    int state;
     uch bg_red;
     uch bg_green;
     uch bg_blue;

contrib/gregbook/readppm.c

@@ -0,0 +1,179 @@
+/*---------------------------------------------------------------------------
+
+   rpng - simple PNG display program                              readppm.c
+
+  ---------------------------------------------------------------------------
+
+   This is a special-purpose replacement for readpng.c that allows binary
+   PPM files to be used in place of PNG images.
+
+  ---------------------------------------------------------------------------
+
+      Copyright (c) 1998-2007 Greg Roelofs.  All rights reserved.
+
+      This software is provided "as is," without warranty of any kind,
+      express or implied.  In no event shall the author or contributors
+      be held liable for any damages arising in any way from the use of
+      this software.
+
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
+      Permission is granted to anyone to use this software for any purpose,
+      including commercial applications, and to alter it and redistribute
+      it freely, subject to the following restrictions:
+
+      1. Redistributions of source code must retain the above copyright
+         notice, disclaimer, and this list of conditions.
+      2. Redistributions in binary form must reproduce the above copyright
+         notice, disclaimer, and this list of conditions in the documenta-
+         tion and/or other materials provided with the distribution.
+      3. All advertising materials mentioning features or use of this
+         software must display the following acknowledgment:
+
+            This product includes software developed by Greg Roelofs
+            and contributors for the book, "PNG: The Definitive Guide,"
+            published by O'Reilly and Associates.
+
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+  ---------------------------------------------------------------------------*/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "readpng.h"    /* typedefs, common macros, public prototypes */
+
+
+ulg  width, height;
+int  bit_depth, color_type, channels;
+uch  *image_data = NULL;
+FILE *saved_infile;
+
+
+void readpng_version_info()
+{
+    fprintf(stderr, "   Compiled without libpng, zlib or PBMPLUS/NetPBM.\n");
+}
+
+
+/* return value = 0 for success, 1 for bad sig, 2 for bad IHDR, 4 for no mem */
+
+int readpng_init(FILE *infile, ulg *pWidth, ulg *pHeight)
+{
+    static uch ppmline[256];
+    int maxval;
+
+
+    saved_infile = infile;
+
+    fgets(ppmline, 256, infile);
+    if (ppmline[0] != 'P' || ppmline[1] != '6') {
+        fprintf(stderr, "ERROR:  not a PPM file\n");
+        return 1;
+    }
+    /* possible color types:  P5 = grayscale (0), P6 = RGB (2), P8 = RGBA (6) */
+    if (ppmline[1] == '6') {
+        color_type = 2;
+        channels = 3;
+    } else if (ppmline[1] == '8') {
+        color_type = 6;
+        channels = 4;
+    } else /* if (ppmline[1] == '5') */ {
+        color_type = 0;
+        channels = 1;
+    }
+
+    do {
+        fgets(ppmline, 256, infile);
+    } while (ppmline[0] == '#');
+    sscanf(ppmline, "%lu %lu", &width, &height);
+
+    do {
+        fgets(ppmline, 256, infile);
+    } while (ppmline[0] == '#');
+    sscanf(ppmline, "%d", &maxval);
+    if (maxval != 255) {
+        fprintf(stderr, "ERROR:  maxval = %d\n", maxval);
+        return 2;
+    }
+    bit_depth = 8;
+
+    *pWidth = width;
+    *pHeight = height;
+
+    return 0;
+}
+
+
+
+
+/* returns 0 if succeeds, 1 if fails due to no bKGD chunk, 2 if libpng error;
+ * scales values to 8-bit if necessary */
+
+int readpng_get_bgcolor(uch *red, uch *green, uch *blue)
+{
+    return 1;
+}
+
+
+
+
+/* display_exponent == LUT_exponent * CRT_exponent */
+
+uch *readpng_get_image(double display_exponent, int *pChannels, ulg *pRowbytes)
+{
+    ulg  rowbytes;
+
+
+    /* expand palette images to RGB, low-bit-depth grayscale images to 8 bits,
+     * transparency chunks to full alpha channel; strip 16-bit-per-sample
+     * images to 8 bits per sample; and convert grayscale to RGB[A] */
+
+    /* GRR WARNING:  grayscale needs to be expanded and channels reset! */
+
+    *pRowbytes = rowbytes = channels*width;
+    *pChannels = channels;
+
+    if ((image_data = (uch *)malloc(rowbytes*height)) == NULL) {
+        return NULL;
+    }
+
+    Trace((stderr, "readpng_get_image:  rowbytes = %ld, height = %ld\n", rowbytes, height));
+
+
+    /* now we can go ahead and just read the whole image */
+
+    fread(image_data, 1L, rowbytes*height, saved_infile);
+
+
+    return image_data;
+}
+
+
+void readpng_cleanup(int free_image_data)
+{
+    if (free_image_data && image_data) {
+        free(image_data);
+        image_data = NULL;
+    }
+}

contrib/gregbook/rpng-win.c

@@ -9,7 +9,6 @@
    with a little tweaking (or maybe not).
 
    to do:
-    - stdout/stderr don't work!  need message window (maybe scrollable?)
     - handle quoted command-line args (especially filenames with spaces)
     - have minimum window width:  oh well
     - use %.1023s to simplify truncation of title-bar string?
@@ -22,16 +21,26 @@
               match; switched to png_jmpbuf() macro
     - 1.02:  added extra set of parentheses to png_jmpbuf() macro; fixed
               command-line parsing bug
+    - 1.10:  enabled "message window"/console (thanks to David Geldreich)
+    - 2.00:  dual-licensed (added GNU GPL)
+    - 2.01:  fixed improper display of usage screen on PNG error(s)
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2008 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -48,17 +57,35 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 #define PROGNAME  "rpng-win"
 #define LONGNAME  "Simple PNG Viewer for Windows"
-#define VERSION   "1.02 of 19 March 2000"
+#define VERSION   "2.01 of 16 March 2008"
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #include <windows.h>
+#include <conio.h>      /* only for _getch() */
 
 /* #define DEBUG  :  this enables the Trace() macros */
 
@@ -84,10 +111,9 @@ static void       rpng_win_cleanup(void);
 LRESULT CALLBACK  rpng_win_wndproc(HWND, UINT, WPARAM, LPARAM);
 
 
-static char titlebar[1024], *window_name = titlebar;
+static char titlebar[1024];
 static char *progname = PROGNAME;
 static char *appname = LONGNAME;
-static char *icon_name = PROGNAME;     /* GRR:  not (yet) used */
 static char *filename;
 static FILE *infile;
 
@@ -128,7 +154,17 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
     filename = (char *)NULL;
 
 
-    /* First set the default value for our display-system exponent, i.e.,
+    /* First reenable console output, which normally goes to the bit bucket
+     * for windowed apps.  Closing the console window will terminate the
+     * app.  Thanks to David.Geldreich@realviz.com for supplying the magical
+     * incantation. */
+
+    AllocConsole();
+    freopen("CONOUT$", "a", stderr);
+    freopen("CONOUT$", "a", stdout);
+
+
+    /* Next set the default value for our display-system exponent, i.e.,
      * the product of the CRT exponent and the exponent corresponding to
      * the frame-buffer's lookup table (LUT), if any.  This is not an
      * exhaustive list of LUT values (e.g., OpenStep has a lot of weird
@@ -236,9 +272,37 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
         }
     }
 
-    if (!filename) {
+    if (!filename)
         ++error;
-    } else if (!(infile = fopen(filename, "rb"))) {
+
+
+    /* print usage screen if any errors up to this point */
+
+    if (error) {
+        int ch;
+
+        fprintf(stderr, "\n%s %s:  %s\n\n", PROGNAME, VERSION, appname);
+        readpng_version_info();
+        fprintf(stderr, "\n"
+          "Usage:  %s [-gamma exp] [-bgcolor bg] file.png\n"
+          "    exp \ttransfer-function exponent (``gamma'') of the display\n"
+          "\t\t  system in floating-point format (e.g., ``%.1f''); equal\n"
+          "\t\t  to the product of the lookup-table exponent (varies)\n"
+          "\t\t  and the CRT exponent (usually 2.2); must be positive\n"
+          "    bg  \tdesired background color in 7-character hex RGB format\n"
+          "\t\t  (e.g., ``#ff7700'' for orange:  same as HTML colors);\n"
+          "\t\t  used with transparent images\n"
+          "\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
+          "Press Q or Esc to quit this usage screen.\n"
+          "\n", PROGNAME, default_display_exponent);
+        do
+            ch = _getch();
+        while (ch != 'q' && ch != 'Q' && ch != 0x1B);
+        exit(1);
+    }
+
+
+    if (!(infile = fopen(filename, "rb"))) {
         fprintf(stderr, PROGNAME ":  can't open PNG file [%s]\n", filename);
         ++error;
     } else {
@@ -251,8 +315,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
                     break;
                 case 2:
                     fprintf(stderr, PROGNAME
-                      ":  [%s] has bad IHDR (libpng longjmp)\n",
-                      filename);
+                      ":  [%s] has bad IHDR (libpng longjmp)\n", filename);
                     break;
                 case 4:
                     fprintf(stderr, PROGNAME ":  insufficient memory\n");
@@ -269,23 +332,19 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
     }
 
 
-    /* usage screen */
-
     if (error) {
+        int ch;
+
+        fprintf(stderr, PROGNAME ":  aborting.\n");
+        do
+            ch = _getch();
+        while (ch != 'q' && ch != 'Q' && ch != 0x1B);
+        exit(2);
+    } else {
         fprintf(stderr, "\n%s %s:  %s\n", PROGNAME, VERSION, appname);
-        readpng_version_info();
-        fprintf(stderr, "\n"
-         "Usage:  %s [-gamma exp] [-bgcolor bg] file.png\n"
-         "    exp \ttransfer-function exponent (``gamma'') of the display\n"
-         "\t\t  system in floating-point format (e.g., ``%.1f''); equal\n"
-         "\t\t  to the product of the lookup-table exponent (varies)\n"
-         "\t\t  and the CRT exponent (usually 2.2); must be positive\n"
-         "    bg  \tdesired background color in 7-character hex RGB format\n"
-         "\t\t  (e.g., ``#ff7700'' for orange:  same as HTML colors);\n"
-         "\t\t  used with transparent images\n"
-         "\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
-         "\n", PROGNAME, default_display_exponent);
-        exit(1);
+        fprintf(stderr,
+          "\n   [console window:  closing this window will terminate %s]\n\n",
+          PROGNAME);
     }
 
 
@@ -303,9 +362,14 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
      * check for one in the PNG file--if not, the initialized values of 0
      * (black) will be used */
 
-    if (have_bg)
-        sscanf(bgstr+1, "%2x%2x%2x", &bg_red, &bg_green, &bg_blue);
-    else if (readpng_get_bgcolor(&bg_red, &bg_green, &bg_blue) > 1) {
+    if (have_bg) {
+        unsigned r, g, b;   /* this approach quiets compiler warnings */
+
+        sscanf(bgstr+1, "%2x%2x%2x", &r, &g, &b);
+        bg_red   = (uch)r;
+        bg_green = (uch)g;
+        bg_blue  = (uch)b;
+    } else if (readpng_get_bgcolor(&bg_red, &bg_green, &bg_blue) > 1) {
         readpng_cleanup(TRUE);
         fprintf(stderr, PROGNAME
           ":  libpng error while checking for background color\n");

contrib/gregbook/rpng-x.c

@@ -9,7 +9,7 @@
    by Martin Zinser under OpenVMS; may work under OS/2 with some tweaking).
 
    to do:
-    - 8-bit support
+    - 8-bit (colormapped) X support
     - use %.1023s to simplify truncation of title-bar string?
 
   ---------------------------------------------------------------------------
@@ -21,16 +21,28 @@
     - 1.10:  added support for non-default visuals; fixed X pixel-conversion
     - 1.11:  added extra set of parentheses to png_jmpbuf() macro; fixed
               command-line parsing bug
+    - 1.12:  fixed some small X memory leaks (thanks to Fran<61>ois Petitjean)
+    - 1.13:  fixed XFreeGC() crash bug (thanks to Patrick Welche)
+    - 1.14:  added support for X resources (thanks to Gerhard Niklasch)
+    - 2.00:  dual-licensed (added GNU GPL)
+    - 2.01:  fixed improper display of usage screen on PNG error(s)
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2008 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -47,11 +59,30 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 #define PROGNAME  "rpng-x"
 #define LONGNAME  "Simple PNG Viewer for X"
-#define VERSION   "1.11 of 19 March 2000"
+#define VERSION   "2.01 of 16 March 2008"
+#define RESNAME   "rpng"	/* our X resource application name */
+#define RESCLASS  "Rpng"	/* our X resource class name */
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -89,6 +120,8 @@ static int  rpng_x_msb(ulg u32val);
 static char titlebar[1024], *window_name = titlebar;
 static char *appname = LONGNAME;
 static char *icon_name = PROGNAME;
+static char *res_name = RESNAME;
+static char *res_class = RESCLASS;
 static char *filename;
 static FILE *infile;
 
@@ -117,6 +150,7 @@ static Colormap colormap;
 static int have_nondefault_visual = FALSE;
 static int have_colormap = FALSE;
 static int have_window = FALSE;
+static int have_gc = FALSE;
 /*
 ulg numcolors=0, pixels[256];
 ush reds[256], greens[256], blues[256];
@@ -232,9 +266,33 @@ int main(int argc, char **argv)
         }
     }
 
-    if (!filename) {
+    if (!filename)
         ++error;
-    } else if (!(infile = fopen(filename, "rb"))) {
+
+
+    /* print usage screen if any errors up to this point */
+
+    if (error) {
+        fprintf(stderr, "\n%s %s:  %s\n", PROGNAME, VERSION, appname);
+        readpng_version_info();
+        fprintf(stderr, "\n"
+          "Usage:  %s [-display xdpy] [-gamma exp] [-bgcolor bg] file.png\n"
+          "    xdpy\tname of the target X display (e.g., ``hostname:0'')\n"
+          "    exp \ttransfer-function exponent (``gamma'') of the display\n"
+          "\t\t  system in floating-point format (e.g., ``%.1f''); equal\n"
+          "\t\t  to the product of the lookup-table exponent (varies)\n"
+          "\t\t  and the CRT exponent (usually 2.2); must be positive\n"
+          "    bg  \tdesired background color in 7-character hex RGB format\n"
+          "\t\t  (e.g., ``#ff7700'' for orange:  same as HTML colors);\n"
+          "\t\t  used with transparent images\n"
+          "\nPress Q, Esc or mouse button 1 (within image window, after image\n"
+          "is displayed) to quit.\n"
+          "\n", PROGNAME, default_display_exponent);
+        exit(1);
+    }
+
+
+    if (!(infile = fopen(filename, "rb"))) {
         fprintf(stderr, PROGNAME ":  can't open PNG file [%s]\n", filename);
         ++error;
     } else {
@@ -247,8 +305,7 @@ int main(int argc, char **argv)
                     break;
                 case 2:
                     fprintf(stderr, PROGNAME
-                      ":  [%s] has bad IHDR (libpng longjmp)\n",
-                      filename);
+                      ":  [%s] has bad IHDR (libpng longjmp)\n", filename);
                     break;
                 case 4:
                     fprintf(stderr, PROGNAME ":  insufficient memory\n");
@@ -273,25 +330,9 @@ int main(int argc, char **argv)
     }
 
 
-    /* usage screen */
-
     if (error) {
-        fprintf(stderr, "\n%s %s:  %s\n", PROGNAME, VERSION, appname);
-        readpng_version_info();
-        fprintf(stderr, "\n"
-          "Usage:  %s [-display xdpy] [-gamma exp] [-bgcolor bg] file.png\n"
-          "    xdpy\tname of the target X display (e.g., ``hostname:0'')\n"
-          "    exp \ttransfer-function exponent (``gamma'') of the display\n"
-          "\t\t  system in floating-point format (e.g., ``%.1f''); equal\n"
-          "\t\t  to the product of the lookup-table exponent (varies)\n"
-          "\t\t  and the CRT exponent (usually 2.2); must be positive\n"
-          "    bg  \tdesired background color in 7-character hex RGB format\n"
-          "\t\t  (e.g., ``#ff7700'' for orange:  same as HTML colors);\n"
-          "\t\t  used with transparent images\n"
-          "\nPress Q, Esc or mouse button 1 (within image window, after image\n"
-          "is displayed) to quit.\n"
-          "\n", PROGNAME, default_display_exponent);
-        exit(1);
+        fprintf(stderr, PROGNAME ":  aborting.\n");
+        exit(2);
     }
 
 
@@ -396,11 +437,12 @@ static int rpng_x_create_window(void)
     XEvent e;
     XGCValues gcvalues;
     XSetWindowAttributes attr;
-    XSizeHints *size_hints;
     XTextProperty windowName, *pWindowName = &windowName;
     XTextProperty iconName, *pIconName = &iconName;
     XVisualInfo visual_info;
+    XSizeHints *size_hints;
     XWMHints *wm_hints;
+    XClassHint *class_hints;
 
 
     screen = DefaultScreen(display);
@@ -523,7 +565,7 @@ static int rpng_x_create_window(void)
     if (!XStringListToTextProperty(&icon_name, 1, pIconName))
         pIconName = NULL;
 
-    /* OK if either hints allocation fails; XSetWMProperties() allows NULLs */
+    /* OK if any hints allocation fails; XSetWMProperties() allows NULLs */
 
     if ((size_hints = XAllocSizeHints()) != NULL) {
         /* window will not be resizable */
@@ -539,12 +581,30 @@ static int rpng_x_create_window(void)
         wm_hints->flags = StateHint | InputHint  /* | IconPixmapHint */ ;
     }
 
+    if ((class_hints = XAllocClassHint()) != NULL) {
+        class_hints->res_name = res_name;
+        class_hints->res_class = res_class;
+    }
+
     XSetWMProperties(display, window, pWindowName, pIconName, NULL, 0,
-      size_hints, wm_hints, NULL);
+      size_hints, wm_hints, class_hints);
+
+    /* various properties and hints no longer needed; free memory */
+    if (pWindowName)
+       XFree(pWindowName->value);
+    if (pIconName)
+       XFree(pIconName->value);
+    if (size_hints)
+        XFree(size_hints);
+    if (wm_hints)
+       XFree(wm_hints);
+    if (class_hints)
+       XFree(class_hints);
 
     XMapWindow(display, window);
 
     gc = XCreateGC(display, window, 0, &gcvalues);
+    have_gc = TRUE;
 
 /*---------------------------------------------------------------------------
     Fill window with the specified background color.
@@ -814,7 +874,8 @@ static void rpng_x_cleanup(void)
         ximage = NULL;
     }
 
-    XFreeGC(display, gc);
+    if (have_gc)
+        XFreeGC(display, gc);
 
     if (have_window)
         XDestroyWindow(display, window);

contrib/gregbook/rpng2-win.c

@@ -10,8 +10,7 @@
    tweaking (or maybe not).  Thanks to Adam Costello and Pieter S. van der
    Meulen for the "diamond" and "radial waves" patterns, respectively.
 
-   to do:
-    - stdout/stderr don't work!  need message window (maybe scrollable?)
+   to do (someday, maybe):
     - handle quoted command-line args (especially filenames with spaces)
     - finish resizable checkerboard-gradient (sizes 4-128?)
     - use %.1023s to simplify truncation of title-bar string?
@@ -25,16 +24,31 @@
     - 1.03:  modified to allow abbreviated options
     - 1.04:  removed bogus extra argument from usage fprintf() [Glenn R-P?];
               fixed command-line parsing bug
+    - 1.10:  enabled "message window"/console (thanks to David Geldreich)
+    - 1.20:  added runtime MMX-enabling/disabling and new -mmx* options
+    - 1.21:  made minor tweak to usage screen to fit within 25-line console
+    - 1.22:  added AMD64/EM64T support (__x86_64__)
+    - 2.00:  dual-licensed (added GNU GPL)
+    - 2.01:  fixed 64-bit typo in readpng2.c
+    - 2.02:  fixed improper display of usage screen on PNG error(s); fixed
+              unexpected-EOF and file-read-error cases
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2008 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -51,11 +65,28 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 #define PROGNAME  "rpng2-win"
 #define LONGNAME  "Progressive PNG Viewer for Windows"
-#define VERSION   "1.04 of 19 March 2000"
+#define VERSION   "2.02 of 16 March 2008"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -64,6 +95,7 @@
 #include <time.h>
 #include <math.h>      /* only for PvdM background code */
 #include <windows.h>
+#include <conio.h>     /* only for _getch() */
 
 /* all for PvdM background code: */
 #ifndef PI
@@ -116,10 +148,9 @@ static void       rpng2_win_cleanup(void);
 LRESULT CALLBACK  rpng2_win_wndproc(HWND, UINT, WPARAM, LPARAM);
 
 
-static char titlebar[1024], *window_name = titlebar;
+static char titlebar[1024];
 static char *progname = PROGNAME;
 static char *appname = LONGNAME;
-static char *icon_name = PROGNAME;    /* GRR:  not (yet) used */
 static char *filename;
 static FILE *infile;
 
@@ -239,6 +270,16 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
     memset(&rpng2_info, 0, sizeof(mainprog_info));
 
 
+    /* Next reenable console output, which normally goes to the bit bucket
+     * for windowed apps.  Closing the console window will terminate the
+     * app.  Thanks to David.Geldreich@realviz.com for supplying the magical
+     * incantation. */
+
+    AllocConsole();
+    freopen("CONOUT$", "a", stderr);
+    freopen("CONOUT$", "a", stdout);
+
+
     /* Set the default value for our display-system exponent, i.e., the
      * product of the CRT exponent and the exponent corresponding to
      * the frame-buffer's lookup table (LUT), if any.  This is not an
@@ -354,6 +395,18 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
             }
         } else if (!strncmp(*argv, "-timing", 2)) {
             timing = TRUE;
+#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
+        } else if (!strncmp(*argv, "-nommxfilters", 7)) {
+            rpng2_info.nommxfilters = TRUE;
+        } else if (!strncmp(*argv, "-nommxcombine", 7)) {
+            rpng2_info.nommxcombine = TRUE;
+        } else if (!strncmp(*argv, "-nommxinterlace", 7)) {
+            rpng2_info.nommxinterlace = TRUE;
+        } else if (!strcmp(*argv, "-nommx")) {
+            rpng2_info.nommxfilters = TRUE;
+            rpng2_info.nommxcombine = TRUE;
+            rpng2_info.nommxinterlace = TRUE;
+#endif
         } else {
             if (**argv != '-') {
                 filename = *argv;
@@ -364,9 +417,54 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
         }
     }
 
-    if (!filename) {
+    if (!filename)
         ++error;
-    } else if (!(infile = fopen(filename, "rb"))) {
+
+
+    /* print usage screen if any errors up to this point */
+
+    if (error) {
+        int ch;
+
+        fprintf(stderr, "\n%s %s:  %s\n\n", PROGNAME, VERSION, appname);
+        readpng2_version_info();
+        fprintf(stderr, "\n"
+          "Usage:  %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]\n"
+#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
+          "        %*s [[-nommxfilters] [-nommxcombine] [-nommxinterlace] | -nommx]\n"
+#endif
+          "        %*s file.png\n\n"
+          "    exp \ttransfer-function exponent (``gamma'') of the display\n"
+          "\t\t  system in floating-point format (e.g., ``%.1f''); equal\n"
+          "\t\t  to the product of the lookup-table exponent (varies)\n"
+          "\t\t  and the CRT exponent (usually 2.2); must be positive\n"
+          "    bg  \tdesired background color in 7-character hex RGB format\n"
+          "\t\t  (e.g., ``#ff7700'' for orange:  same as HTML colors);\n"
+          "\t\t  used with transparent images; overrides -bgpat option\n"
+          "    pat \tdesired background pattern number (1-%d); used with\n"
+          "\t\t  transparent images; overrides -bgcolor option\n"
+          "    -timing\tenables delay for every block read, to simulate modem\n"
+          "\t\t  download of image (~36 Kbps)\n"
+#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
+          "    -nommx*\tdisable optimized MMX routines for decoding row filters,\n"
+          "\t\t  combining rows, and expanding interlacing, respectively\n"
+#endif
+          "\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
+          "Press Q or Esc to quit this usage screen. ",
+          PROGNAME,
+#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
+          (int)strlen(PROGNAME), " ",
+#endif
+          (int)strlen(PROGNAME), " ", default_display_exponent, num_bgpat);
+        fflush(stderr);
+        do
+            ch = _getch();
+        while (ch != 'q' && ch != 'Q' && ch != 0x1B);
+        exit(1);
+    }
+
+
+    if (!(infile = fopen(filename, "rb"))) {
         fprintf(stderr, PROGNAME ":  can't open PNG file [%s]\n", filename);
         ++error;
     } else {
@@ -380,8 +478,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
             switch (rc) {
                 case 2:
                     fprintf(stderr, PROGNAME
-                      ":  [%s] has bad IHDR (libpng longjmp)\n",
-                      filename);
+                      ":  [%s] has bad IHDR (libpng longjmp)\n", filename);
                     break;
                 case 4:
                     fprintf(stderr, PROGNAME ":  insufficient memory\n");
@@ -398,28 +495,20 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
     }
 
 
-    /* usage screen */
-
     if (error) {
+        int ch;
+
+        fprintf(stderr, PROGNAME ":  aborting.\n");
+        do
+            ch = _getch();
+        while (ch != 'q' && ch != 'Q' && ch != 0x1B);
+        exit(2);
+    } else {
         fprintf(stderr, "\n%s %s:  %s\n", PROGNAME, VERSION, appname);
-        readpng2_version_info();
-        fprintf(stderr, "\n"
-          "Usage:  %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]"
-          " file.png\n\n"
-          "    exp \ttransfer-function exponent (``gamma'') of the display\n"
-          "\t\t  system in floating-point format (e.g., ``%.1f''); equal\n"
-          "\t\t  to the product of the lookup-table exponent (varies)\n"
-          "\t\t  and the CRT exponent (usually 2.2); must be positive\n"
-          "    bg  \tdesired background color in 7-character hex RGB format\n"
-          "\t\t  (e.g., ``#ff7700'' for orange:  same as HTML colors);\n"
-          "\t\t  used with transparent images; overrides -bgpat\n"
-          "    pat \tdesired background pattern number (1-%d); used with\n"
-          "\t\t  transparent images; overrides -bgcolor\n"
-          "    -timing\tenables delay for every block read, to simulate modem\n"
-          "\t\t  download of image (~36 Kbps)\n"
-          "\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
-          "\n", PROGNAME, default_display_exponent, num_bgpat);
-        exit(1);
+        fprintf(stderr,
+          "\n   [console window:  closing this window will terminate %s]\n\n",
+          PROGNAME);
+        fflush(stderr);
     }
 
 
@@ -445,7 +534,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
     } else
         rpng2_info.need_bgcolor = TRUE;
 
-    rpng2_info.done = FALSE;
+    rpng2_info.state = kPreInit;
     rpng2_info.mainprog_init = rpng2_win_init;
     rpng2_info.mainprog_display_row = rpng2_win_display_row;
     rpng2_info.mainprog_finish_display = rpng2_win_finish_display;
@@ -465,10 +554,27 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
         if (readpng2_decode_data(&rpng2_info, inbuf, incount))
             ++error;
         Trace((stderr, "done with readpng2_decode_data()\n"))
-        if (error || feof(infile) || rpng2_info.done)
+
+        if (error || incount != INBUFSIZE || rpng2_info.state == kDone) {
+            if (rpng2_info.state == kDone) {
+                Trace((stderr, "done decoding PNG image\n"))
+            } else if (ferror(infile)) {
+                fprintf(stderr, PROGNAME
+                  ":  error while reading PNG image file\n");
+                exit(3);
+            } else if (feof(infile)) {
+                fprintf(stderr, PROGNAME ":  end of file reached "
+                  "(unexpectedly) while reading PNG image file\n");
+                exit(3);
+            } else /* if (error) */ {
+                // will print error message below
+            }
             break;
+        }
+
         if (timing)
             Sleep(1000L);
+
         incount = fread(inbuf, 1, INBUFSIZE, infile);
     }
 
@@ -515,7 +621,7 @@ static void rpng2_win_init()
     ulg rowbytes = rpng2_info.rowbytes;
 
     Trace((stderr, "beginning rpng2_win_init()\n"))
-    Trace((stderr, "  rowbytes = %ld\n", rpng2_info.rowbytes))
+    Trace((stderr, "  rowbytes = %d\n", rpng2_info.rowbytes))
     Trace((stderr, "  width  = %ld\n", rpng2_info.width))
     Trace((stderr, "  height = %ld\n", rpng2_info.height))
 
@@ -545,6 +651,8 @@ static void rpng2_win_init()
         readpng2_cleanup(&rpng2_info);
         return;
     }
+
+    rpng2_info.state = kWindowInit;
 }
 
 
@@ -1040,7 +1148,7 @@ static void rpng2_win_finish_display()
      * we have nothing to do here except set a flag and let the user know
      * that the image is done */
 
-    rpng2_info.done = TRUE;
+    rpng2_info.state = kDone;
     printf(
       "Done.  Press Q, Esc or mouse button 1 (within image window) to quit.\n");
     fflush(stdout);

contrib/gregbook/wpng.c

@@ -5,8 +5,10 @@
    This program converts certain NetPBM binary files (grayscale and RGB,
    maxval = 255) to PNG.  Non-interlaced PNGs are written progressively;
    interlaced PNGs are read and written in one memory-intensive blast.
+
    Thanks to Jean-loup Gailly for providing the necessary trick to read
-   interactive text from the keyboard while stdin is redirected.
+   interactive text from the keyboard while stdin is redirected.  Thanks
+   to Cosmin Truta for Cygwin fixes.
 
    NOTE:  includes provisional support for PNM type "8" (portable alphamap)
           images, presumed to be a 32-bit interleaved RGBA format; no pro-
@@ -24,16 +26,32 @@
     - 1.02:  modified to allow abbreviated options
     - 1.03:  removed extraneous character from usage screen; fixed bug in
               command-line parsing
+    - 1.04:  fixed DOS/OS2/Win32 detection, including partial Cygwin fix
+              (see http://home.att.net/~perlspinr/diffs/GregBook_cygwin.diff)
+    - 2.00:  dual-licensed (added GNU GPL)
+
+        [REPORTED BUG (win32 only):  "contrib/gregbook/wpng.c - cmd line
+         dose not work!  In order to do something useful I needed to redirect
+         both input and output, with cygwin and with bcc32 as well.  Under
+         Linux, the same wpng appears to work fine.  I don't know what is
+         the problem."]
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2007 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -50,16 +68,35 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 #define PROGNAME  "wpng"
-#define VERSION   "1.03 of 19 March 2000"
+#define VERSION   "2.00 of 2 June 2007"
 #define APPNAME   "Simple PGM/PPM/PAM to PNG Converter"
 
 #if defined(__MSDOS__) || defined(__OS2__)
 #  define DOS_OS2_W32
-#elif defined(_WIN32) || defined(__WIN32__)
-#  define DOS_OS2_W32
+#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+#  ifndef __GNUC__   /* treat Win32 native ports of gcc as Unix environments */
+#    define DOS_OS2_W32
+#  endif
 #endif
 
 #include <stdio.h>

contrib/gregbook/writepng.c

@@ -4,13 +4,20 @@
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2007 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 

contrib/gregbook/writepng.h

@@ -4,13 +4,20 @@
 
   ---------------------------------------------------------------------------
 
-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2007 Greg Roelofs.  All rights reserved.
 
       This software is provided "as is," without warranty of any kind,
       express or implied.  In no event shall the author or contributors
       be held liable for any damages arising in any way from the use of
       this software.
 
+      The contents of this file are DUAL-LICENSED.  You may modify and/or
+      redistribute this software according to the terms of one of the
+      following two licenses (at your option):
+
+
+      LICENSE 1 ("BSD-like with advertising clause"):
+
       Permission is granted to anyone to use this software for any purpose,
       including commercial applications, and to alter it and redistribute
       it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
             and contributors for the book, "PNG: The Definitive Guide,"
             published by O'Reilly and Associates.
 
+
+      LICENSE 2 (GNU GPL v2 or later):
+
+      This program is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published by
+      the Free Software Foundation; either version 2 of the License, or
+      (at your option) any later version.
+
+      This program is distributed in the hope that it will be useful,
+      but WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+      GNU General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with this program; if not, write to the Free Software Foundation,
+      Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
   ---------------------------------------------------------------------------*/
 
 #ifndef TRUE

contrib/msvctest/README.txt

@@ -1,22 +0,0 @@
-Microsoft Developer Studio Build File, Format Version 6.00 for
-msvctest
-
-Assumes that libpng DLLs and LIBs are in ..\..\dll\msvc\win32\libpng
-Assumes that zlib DLLs and LIBs are in ..\..\dll\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.

contrib/msvctest/msvctest.dsp

@@ -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  "$(CFG)" == "msvctest - Win32 DLL"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 0
-# PROP BASE Output_Dir "dll"
-# PROP BASE Intermediate_Dir "dll"
-# PROP BASE Target_Dir ""
-# PROP Use_MFC 0
-# PROP Use_Debug_Libraries 0
-# PROP Output_Dir "dll"
-# PROP Intermediate_Dir "dll"
-# PROP Ignore_Export_Lib 0
-# PROP Target_Dir ""
-# ADD BASE CPP /nologo /W3 /O1 /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /FD /c
-# ADD CPP /nologo /MD /W3 /O1 /I "..\..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /D "PNG_DLL" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
-# ADD BASE RSC /l 0x409 /d "NDEBUG"
-# ADD RSC /l 0x409 /d "NDEBUG"
-BSC32=bscmake.exe
-# ADD BASE BSC32 /nologo
-# ADD BSC32 /nologo
-LINK32=link.exe
-# ADD BASE LINK32 /nologo /subsystem:console /machine:I386
-# ADD LINK32 ..\..\dll\msvc\win32\libpng\dll\libpng1.lib /nologo /subsystem:console /machine:I386
-# Begin Special Build Tool
-OutDir=.\dll
-SOURCE="$(InputPath)"
-PostBuild_Desc=[Run Test]
-PostBuild_Cmds=set path=..\..\dll\msvc\win32\libpng\dll;..\..\dll\msvc\win32\zlib\dll;	$(outdir)\msvctest.exe ..\..\pngtest.png
-# End Special Build Tool
-
-!ELSEIF  "$(CFG)" == "msvctest - Win32 Debug DLL"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 1
-# PROP BASE Output_Dir "dll_dbg"
-# PROP BASE Intermediate_Dir "dll_dbg"
-# PROP BASE Target_Dir ""
-# PROP Use_MFC 0
-# PROP Use_Debug_Libraries 1
-# PROP Output_Dir "dll_dbg"
-# PROP Intermediate_Dir "dll_dbg"
-# PROP Ignore_Export_Lib 0
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-
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-# Begin Group "Source Files"
-
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contrib/msvctest/msvctest.dsw

@@ -1,29 +0,0 @@
-Microsoft Developer Studio Workspace File, Format Version 6.00
-# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
-
-###############################################################################
-
-Project: "msvctest"=.\msvctest.dsp - Package Owner=<4>
-
-Package=<5>
-{{{
-}}}
-
-Package=<4>
-{{{
-}}}
-
-###############################################################################
-
-Global:
-
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-{{{
-}}}
-
-Package=<3>
-{{{
-}}}
-
-###############################################################################
-

contrib/pngminim/decoder/README

@@ -0,0 +1,9 @@
+This demonstrates the use of PNG_USER_CONFIG and pngusr.h
+
+To build a minimal read-only decoder with embedded libpng and zlib, run
+
+    gather.sh  # to collect needed files from pngminus, libpng, and zlib
+    make
+
+If you prefer to use the shared libraries, go to contrib/pngminus
+and build the png2pnm application there. 

contrib/pngminim/decoder/gather.sh

@@ -0,0 +1,9 @@
+cp ../../pngminus/png2pnm.c pngm2pnm.c
+cp ../../../*.h .
+cp ../../../*.c .
+rm pnggccrd.c pngvcrd.c
+rm example.c pngtest.c pngpread.c pngw*.c
+# change the following 2 lines if zlib is somewhere else
+cp ../../../../zlib/*.h .
+cp ../../../../zlib/*.c .
+rm minigzip.c example.c compress.c deflate.c gz*

contrib/pngminim/decoder/makefile

@@ -0,0 +1,44 @@
+# Makefile for PngMinus (pngm2pnm)
+# Linux / Unix
+
+#CC=cc
+CC=gcc
+LD=$(CC)
+
+RM=rm -f
+
+CFLAGS=-DPNG_USER_CONFIG -DNO_GZCOMPRESS -DNO_GZIP \
+       -DdeflateParams\(a,b,c\)=Z_OK -I. -O1
+
+C=.c
+O=.o
+L=.a
+E=
+
+ZOBJS  = adler32$(O) crc32$(O) \
+	 infback$(O) inffast$(O) inflate$(O) inftrees$(O) \
+	 trees$(O) uncompr$(O) zutil$(O)
+
+OBJS  = pngm2pnm$(O) png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
+	pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) \
+	pngset$(O) pngtrans$(O)  $(ZOBJS)
+
+# implicit make rules -------------------------------------------------------
+
+.c$(O): png.h pngconf.h pngusr.h zlib.h
+	$(CC) -c $(CFLAGS) $<
+
+# dependencies
+
+all: pngm2pnm$(E)
+
+pngm2pnm$(E): $(OBJS)
+	$(LD) -o pngm2pnm$(E) $(OBJS)
+	strip pngm2pnm$(E)
+
+clean:
+	$(RM) pngm2pnm$(O)
+	$(RM) pngm2pnm$(E)
+	$(RM) $(OBJS)
+
+# End of makefile for pngm2pnm

contrib/pngminim/decoder/pngusr.h

@@ -0,0 +1,78 @@
+/* minrdpngconf.h: headers to make a minimal png-read-only library
+ *
+ * Copyright (c) 2007, 2009 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
+ *
+ * Derived from pngcrush.h, Copyright 1998-2007, Glenn Randers-Pehrson
+ */
+
+#ifndef MINRDPNGCONF_H
+#define MINRDPNGCONF_H
+
+#ifdef NJET
+  /* No 16-bit support beyond reading with strip_16 */
+#endif
+
+#define PNG_NO_GLOBAL_ARRAYS
+
+#define PNG_NO_WARNINGS
+#define png_warning(s1,s2) ""
+#define png_chunk_warning(s1,s2) ""
+#define PNG_NO_ERROR_TEXT
+#define png_error(s1,s2) png_err(s1)
+#define png_chunk_error(s1,s2) png_err(s1)
+
+#define PNG_NO_ASSEMBLER_CODE
+#define PNG_NO_OPTIMIZED_CODE
+#define PNG_NO_READ_GAMMA
+#define PNG_NO_READ_BACKGROUND
+#define PNG_NO_READ_DITHER
+#define PNG_NO_READ_INVERT
+#define PNG_NO_READ_SHIFT
+#define PNG_NO_READ_PACK
+#define PNG_NO_READ_PACKSWAP
+#define PNG_NO_READ_FILLER
+#define PNG_NO_READ_SWAP
+#define PNG_NO_READ_SWAP_ALPHA
+#define PNG_NO_READ_INVERT_ALPHA
+#define PNG_NO_READ_RGB_TO_GRAY
+#define PNG_NO_READ_USER_TRANSFORM
+#define PNG_NO_READ_bKGD
+#define PNG_NO_READ_cHRM
+#define PNG_NO_READ_gAMA
+#define PNG_NO_READ_hIST
+#define PNG_NO_READ_iCCP
+#define PNG_NO_READ_pCAL
+#define PNG_NO_READ_pHYs
+#define PNG_NO_READ_sBIT
+#define PNG_NO_READ_sCAL
+#define PNG_NO_READ_sPLT
+#define PNG_NO_READ_sRGB
+#define PNG_NO_READ_TEXT
+#define PNG_NO_READ_tIME
+#define PNG_NO_READ_UNKNOWN_CHUNKS
+#define PNG_NO_READ_USER_CHUNKS
+#define PNG_NO_READ_EMPTY_PLTE
+#define PNG_NO_READ_OPT_PLTE
+#define PNG_NO_READ_STRIP_ALPHA
+#define PNG_NO_READ_oFFs
+#define PNG_NO_WARN_UNINITIALIZED_ROW
+
+#define PNG_NO_WRITE_SUPPORTED
+
+#define PNG_NO_INFO_IMAGE
+#define PNG_NO_USER_MEM
+#define PNG_NO_FIXED_POINT_SUPPORTED
+#define PNG_NO_MNG_FEATURES
+#define PNG_NO_USER_TRANSFORM_PTR
+#define PNG_NO_HANDLE_AS_UNKNOWN
+#define PNG_NO_CONSOLE_IO
+#define PNG_NO_ZALLOC_ZERO
+#define PNG_NO_ERROR_NUMBERS
+#define PNG_NO_EASY_ACCESS
+#define PNG_NO_PROGRESSIVE_READ
+
+#endif /* MINRDPNGCONF_H */

contrib/pngminim/encoder/README

@@ -0,0 +1,9 @@
+This demonstrates the use of PNG_USER_CONFIG and pngusr.h
+
+To build a minimal write-only decoder with embedded libpng and zlib, run
+
+    gather.sh  # to collect needed files from pngminus, libpng, and zlib
+    make
+ 
+If you prefer to use the shared libraries, go to contrib/pngminus
+and build the pnm2png application there. 

contrib/pngminim/encoder/dummy_inflate.c

@@ -0,0 +1,27 @@
+#include "zlib.h"
+
+int ZEXPORT inflate(strm, flush)
+z_streamp strm;
+int flush;
+{ return Z_OK ; }
+
+int ZEXPORT inflateReset(strm)
+z_streamp strm;
+{ return Z_OK ; }
+
+int ZEXPORT inflateEnd(strm)
+z_streamp strm;
+{ return Z_STREAM_ERROR ; }
+
+int ZEXPORT inflateInit_(strm, version, stream_size)
+z_streamp strm;
+const char *version;
+int stream_size;
+{ return Z_OK ; }
+
+int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size)
+z_streamp strm;
+int windowBits;
+const char *version;
+int stream_size;
+{ return Z_STREAM_ERROR ; }

contrib/pngminim/encoder/gather.sh

@@ -0,0 +1,10 @@
+cp ../../pngminus/pnm2png.c pnm2pngm.c
+cp ../../../*.h .
+cp ../../../*.c .
+rm pnggccrd.c pngvcrd.c
+rm example.c pngtest.c pngr*.c pngpread.c
+# Change the next 2 lines if zlib is somewhere else.
+cp ../../../../zlib/*.h .
+cp ../../../../zlib/*.c .
+rm inf*.[ch]
+rm minigzip.c example.c gz*

contrib/pngminim/encoder/makefile

@@ -0,0 +1,43 @@
+# Makefile for PngMinus (pnm2pngm)
+# Linux / Unix
+
+#CC=cc
+CC=gcc
+LD=$(CC)
+
+RM=rm -f
+
+CFLAGS=-DPNG_USER_CONFIG -DNO_GZIP -I. -O1
+
+C=.c
+O=.o
+L=.a
+E=
+
+ZOBJS  = adler32$(O) compress$(O) crc32$(O) deflate$(O) \
+	 dummy_inflate$(O) \
+	 trees$(O) uncompr$(O) zutil$(O)
+
+OBJS  = pnm2pngm$(O) png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
+	pngset$(O) pngtrans$(O) pngwio$(O) pngwrite$(O) \
+	pngwtran$(O) pngwutil$(O) $(ZOBJS)
+
+# implicit make rules -------------------------------------------------------
+
+.c$(O): png.h pngconf.h pngusr.h zlib.h
+	$(CC) -c $(CFLAGS) $<
+
+# dependencies
+
+all: pnm2pngm$(E)
+
+pnm2pngm$(E): $(OBJS)
+	$(LD) -o pnm2pngm$(E) $(OBJS)
+	strip pnm2pngm$(E)
+
+clean:
+	$(RM) pnm2pngm$(O)
+	$(RM) pnm2pngm$(E)
+	$(RM) $(OBJS)
+
+# End of makefile for pnm2pngm

contrib/pngminim/encoder/pngusr.h

@@ -0,0 +1,73 @@
+/* minwrpngconf.h: headers to make a minimal png-write-only library
+ *
+ * Copyright (c) 2007, 2009 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
+ *
+ * Derived from pngcrush.h, Copyright 1998-2007, Glenn Randers-Pehrson
+ */
+
+#ifndef MINWRPNGCONF_H
+#define MINWRPNGCONF_H
+
+#define PNG_NO_GLOBAL_ARRAYS
+
+#define PNG_NO_READ_SUPPORTED
+
+#define PNG_NO_WARNINGS
+#define png_warning(s1,s2) ""
+#define png_chunk_warning(s1,s2) ""
+#define PNG_NO_ERROR_TEXT
+#define png_error(s1,s2) png_err(s1)
+#define png_chunk_error(s1,s2) png_err(s1)
+
+#define PNG_NO_WRITE_BACKGROUND
+#define PNG_NO_WRITE_GAMMA
+#define PNG_NO_WRITE_DITHER
+#define PNG_NO_WRITE_INVERT
+#define PNG_NO_WRITE_SHIFT
+#define PNG_NO_WRITE_PACK
+#define PNG_NO_WRITE_PACKSWAP
+#define PNG_NO_WRITE_FILLER
+#define PNG_NO_WRITE_SWAP
+#define PNG_NO_WRITE_SWAP_ALPHA
+#define PNG_NO_WRITE_INVERT_ALPHA
+#define PNG_NO_WRITE_RGB_TO_GRAY
+#define PNG_NO_WRITE_USER_TRANSFORM
+#define PNG_NO_WRITE_bKGD
+#define PNG_NO_WRITE_cHRM
+#define PNG_NO_WRITE_gAMA
+#define PNG_NO_WRITE_hIST
+#define PNG_NO_WRITE_iCCP
+#define PNG_NO_WRITE_oFFs
+#define PNG_NO_WRITE_pCAL
+#define PNG_NO_WRITE_pHYs
+#define PNG_NO_WRITE_sBIT
+#define PNG_NO_WRITE_sCAL
+#define PNG_NO_WRITE_sPLT
+#define PNG_NO_WRITE_sRGB
+#define PNG_NO_WRITE_TEXT
+#define PNG_NO_WRITE_tIME
+#define PNG_NO_WRITE_UNKNOWN_CHUNKS
+#define PNG_NO_WRITE_USER_CHUNKS
+#define PNG_NO_WRITE_EMPTY_PLTE
+#define PNG_NO_WRITE_OPT_PLTE
+#define PNG_NO_WRITE_FILTER
+#define PNG_NO_WRITE_WEIGHTED_FILTER
+#define PNG_NO_WRITE_INTERLACING_SUPPORTED
+#define PNG_NO_WRITE_FLUSH
+
+#define PNG_NO_INFO_IMAGE
+#define PNG_NO_USER_MEM
+#define PNG_NO_FIXED_POINT_SUPPORTED
+#define PNG_NO_MNG_FEATURES
+#define PNG_NO_USER_TRANSFORM_PTR
+#define PNG_NO_HANDLE_AS_UNKNOWN
+#define PNG_NO_CONSOLE_IO
+#define PNG_NO_ZALLOC_ZERO
+#define PNG_NO_ERROR_NUMBERS
+#define PNG_NO_EASY_ACCESS
+
+#endif /* MINWRPNGCONF_H */

contrib/pngminim/preader/README

@@ -0,0 +1,14 @@
+This demonstrates the use of PNG_USER_CONFIG and pngusr.h
+
+To build a minimal read-only progressive decoder embedded libpng and
+zlib and with your system's X library, run
+
+    gather.sh # to collect needed files from gregbook, libpng, and zlib
+
+Edit makefile if required, to find your X library and include files,
+then
+    
+    make
+ 
+If you prefer to use the shared libraries, go to contrib/gregbook
+and build the rpng2-x application there. 

contrib/pngminim/preader/gather.sh

@@ -0,0 +1,10 @@
+cp ../../gregbook/rpng2-x.c ../../gregbook/readpng2.[ch] .
+cp ../../gregbook/COPYING ../../gregbook/LICENSE .
+cp ../../../*.h .
+cp ../../../*.c .
+rm pnggccrd.c pngvcrd.c
+rm example.c pngtest.c pngw*.c
+# change the following 2 lines if zlib is somewhere else
+cp ../../../../zlib/*.h .
+cp ../../../../zlib/*.c .
+rm minigzip.c example.c compress.c deflate.c gz*

contrib/pngminim/preader/makefile

@@ -0,0 +1,60 @@
+# Makefile for PngMinus (rpng2)
+# Linux / Unix
+
+#CC=cc
+CC=gcc
+LD=$(CC)
+
+RM=rm -f
+
+#XINC = -I/usr/include			# old-style, stock X distributions
+#XLIB = -L/usr/lib/X11 -lX11		#  (including SGI IRIX)
+
+#XINC = -I/usr/openwin/include		# Sun workstations (OpenWindows)
+#XLIB = -L/usr/openwin/lib -lX11
+
+XINC = -I/usr/X11R6/include		# new X distributions (X.org, etc.)
+XLIB = -L/usr/X11R6/lib -lX11
+#XLIB = -L/usr/X11R6/lib64 -lX11	# e.g., Red Hat on AMD64
+
+#XINC = -I/usr/local/include   		# FreeBSD
+#XLIB = -L/usr/local/lib -lX11
+
+#LIBS = $(XLIB)
+LIBS = $(XLIB) -lm                      #platforms that need libm
+
+CFLAGS=-DPNG_USER_CONFIG -DNO_GZCOMPRESS -DNO_GZIP \
+       -DdeflateParams\(a,b,c\)=Z_OK -I. $(XINC) -O1
+
+C=.c
+O=.o
+L=.a
+E=
+
+ZOBJS  = adler32$(O) crc32$(O) \
+	 infback$(O) inffast$(O) inflate$(O) inftrees$(O) \
+	 trees$(O) uncompr$(O) zutil$(O)
+
+OBJS  = rpng2-x$(O) readpng2$(O) png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
+	pngpread$(O) pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) \
+	pngset$(O) pngtrans$(O)  $(ZOBJS)
+
+# implicit make rules -------------------------------------------------------
+
+.c$(O): png.h pngconf.h readpng2.h pngusr.h zlib.h
+	$(CC) -c $(CFLAGS) $<
+
+# dependencies
+
+all: rpng2-x$(E)
+
+rpng2-x$(E): $(OBJS)
+	$(LD) -o rpng2-x$(E) $(OBJS) $(LIBS)
+	strip rpng2-x$(E)
+
+clean:
+	$(RM) rpng2-x$(O)
+	$(RM) rpng2-x$(E)
+	$(RM) $(OBJS)
+
+# End of makefile for rpng2-x

contrib/pngminim/preader/pngusr.h

@@ -0,0 +1,68 @@
+/* minrdpngconf.h: headers to make a minimal png-read-only library
+ *
+ * Copyright (c) 2009 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
+ *
+ * Derived from pngcrush.h, Copyright 1998-2007, Glenn Randers-Pehrson
+ */
+
+#ifndef MINPRDPNGCONF_H
+#define MINPRDPNGCONF_H
+
+#define PNG_NO_GLOBAL_ARRAYS
+
+#define PNG_NO_WARNINGS
+#define png_warning(s1,s2) ""
+#define png_chunk_warning(s1,s2) ""
+#define PNG_NO_ERROR_TEXT
+#define png_error(s1,s2) png_err(s1)
+#define png_chunk_error(s1,s2) png_err(s1)
+
+#define PNG_NO_ASSEMBLER_CODE
+#define PNG_NO_OPTIMIZED_CODE
+#define PNG_NO_READ_DITHER
+#define PNG_NO_READ_INVERT
+#define PNG_NO_READ_SHIFT
+#define PNG_NO_READ_PACK
+#define PNG_NO_READ_PACKSWAP
+#define PNG_NO_READ_FILLER
+#define PNG_NO_READ_SWAP
+#define PNG_NO_READ_SWAP_ALPHA
+#define PNG_NO_READ_INVERT_ALPHA
+#define PNG_NO_READ_RGB_TO_GRAY
+#define PNG_NO_READ_USER_TRANSFORM
+#define PNG_NO_READ_cHRM
+#define PNG_NO_READ_hIST
+#define PNG_NO_READ_iCCP
+#define PNG_NO_READ_pCAL
+#define PNG_NO_READ_pHYs
+#define PNG_NO_READ_sBIT
+#define PNG_NO_READ_sCAL
+#define PNG_NO_READ_sPLT
+#define PNG_NO_READ_TEXT
+#define PNG_NO_READ_tIME
+#define PNG_NO_READ_UNKNOWN_CHUNKS
+#define PNG_NO_READ_USER_CHUNKS
+#define PNG_NO_READ_EMPTY_PLTE
+#define PNG_NO_READ_OPT_PLTE
+#define PNG_NO_READ_STRIP_ALPHA
+#define PNG_NO_READ_oFFs
+#define PNG_NO_WARN_UNINITIALIZED_ROW
+
+#define PNG_NO_WRITE_SUPPORTED
+
+#define PNG_NO_INFO_IMAGE
+#define PNG_NO_USER_MEM
+#define PNG_NO_FIXED_POINT_SUPPORTED
+#define PNG_NO_MNG_FEATURES
+#define PNG_NO_USER_TRANSFORM_PTR
+#define PNG_NO_HANDLE_AS_UNKNOWN
+#define PNG_NO_CONSOLE_IO
+#define PNG_NO_ZALLOC_ZERO
+#define PNG_NO_ERROR_NUMBERS
+#define PNG_NO_EASY_ACCESS
+
+#endif /* MINPRDPNGCONF_H */

contrib/pngminus/README

@@ -20,7 +20,7 @@ Soon after the creation of PNG in 1995, the need was felt for a set of
 pnmtopng / pngtopnm utilities. Independantly Alexander Lehmann and I
 (Willem van Schaik) started such a project. Luckily we discovered this
 and merged the two together into pnmtopng.tar.gz, which is available
-from a/o ftp://swrinde.nde.swri.edu/pub/png/.
+from a/o ftp://ftp.simplesystems.org/pub/libpng/png/.
 
 These two utilities have many, many options and make use of most of the
 features of PNG, like gamma, alpha, sbit, text-chunks, etc. This makes

contrib/pngminus/makefile.std

@@ -1,26 +1,31 @@
 # Makefile for PngMinus (png2pnm and pnm2png)
 # Linux / Unix
 
-CC=cc -O
-LD=cc -O
-#CC=gcc -O
-#LD=gcc -O
-LB=ar
-RM=rm
-CP=cp
+#CC=cc
+CC=gcc
+LD=$(CC)
 
-PNGPATH = /usr/local
-PNGINC = $(PNGPATH)/include
-#PNGLIB = $(PNGPATH)/lib -lpng
-PNGLIB = $(PNGPATH)/lib/libpng.a
+RM=rm -f
 
-ZPATH = /usr/local
-ZINC = $(ZPATH)/include
-#ZLIB = $(ZPATH)/lib -lz
-ZLIB = $(ZPATH)/lib/libz.a
+#PNGPATH = /usr/local
+#PNGINC = -I$(PNGPATH)/include/libpng12
+#PNGLIB = -L$(PNGPATH)/lib -lpng12
+#PNGLIBS = $(PNGPATH)/lib/libpng12.a
+PNGINC = -I../..
+PNGLIB = -L../.. -lpng
+PNGLIBS = ../../libpng.a
 
-CCFLAGS=-I$(PNGINC) -I$(ZINC)
-LDFLAGS=-L$(PNGLIB) -L$(ZLIB)
+#ZPATH = /usr/local
+#ZINC = -I$(ZPATH)/include
+#ZLIB = -L$(ZPATH)/lib -lz
+#ZLIBS = $(ZPATH)/lib/libz.a
+ZINC = -I../../../zlib
+ZLIB = -L../../../zlib -lz
+ZLIBS = ../../../zlib/libz.a
+
+CFLAGS=-O3 $(PNGINC) $(ZINC)
+LDFLAGS=$(PNGLIB) $(ZLIB)
+LDFLAGSS=$(PNGLIBS) $(ZLIBS)
 C=.c
 O=.o
 L=.a
@@ -28,25 +33,33 @@ E=
 
 # dependencies
 
-all: png2pnm$(E) pnm2png$(E)
+#all: png2pnm$(E) pnm2png$(E)
+all: png2pnm$(E) pnm2png$(E) png2pnm-static$(E) pnm2png-static$(E)
 
 png2pnm$(O): png2pnm$(C)
-	$(CC) -c $(CCFLAGS) png2pnm$(C)
+	$(CC) -c $(CFLAGS) png2pnm$(C)
 
 png2pnm$(E): png2pnm$(O)
-	$(LD) -o png2pnm$(E) png2pnm$(O) $(LDFLAGS) -lpng -lz -lm
+	$(LD) -o png2pnm$(E) png2pnm$(O) $(LDFLAGS) -lm
+
+png2pnm-static$(E): png2pnm$(O)
+	$(LD) -o png2pnm-static$(E) png2pnm$(O) $(LDFLAGSS) -lm
 
 pnm2png$(O): pnm2png$(C)
-	$(CC) -c $(CCFLAGS) pnm2png$(C)
+	$(CC) -c $(CFLAGS) pnm2png$(C)
 
 pnm2png$(E): pnm2png$(O)
-	$(LD) -o pnm2png$(E) pnm2png$(O) $(LDFLAGS) -lpng -lz -lm
+	$(LD) -o pnm2png$(E) pnm2png$(O) $(LDFLAGS) -lm
+
+pnm2png-static$(E): pnm2png$(O)
+	$(LD) -o pnm2png-static$(E) pnm2png$(O) $(LDFLAGSS) -lm
 
 clean:
 	$(RM) png2pnm$(O)
 	$(RM) pnm2png$(O)
 	$(RM) png2pnm$(E)
 	$(RM) pnm2png$(E)
+	$(RM) png2pnm-static$(E)
+	$(RM) pnm2png-static$(E)
 
 # End of makefile for png2pnm / pnm2png
-

contrib/pngminus/png2pnm.c

@@ -211,7 +211,7 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
   if (ret != 8)
     return FALSE;
 
-  ret = png_check_sig (buf, 8);
+  ret = !png_sig_cmp (buf, 0, 8);
   if (!ret)
     return FALSE;
 

contrib/pngminus/png2pnm.sh

@@ -1,3 +1,4 @@
+#!/bin/sh
 # -- grayscale
 ./png2pnm -noraw ../pngsuite/basn0g01.png basn0g01.pgm
 ./png2pnm -noraw ../pngsuite/basn0g02.png basn0g02.pgm

contrib/pngminus/pngminus.sh

@@ -1,3 +1,4 @@
+#!/bin/sh
 make -f makefile.std
 sh png2pnm.sh
 sh pnm2png.sh

contrib/pngminus/pnm2png.sh

@@ -1,3 +1,4 @@
+#!/bin/sh
 # -- grayscale
 ./pnm2png basn0g01.pgm basn0g01.png
 ./pnm2png basn0g02.pgm basn0g02.png

contrib/visupng/PngFile.c

@@ -2,8 +2,11 @@
 //  PNGFILE.C -- Image File Functions
 //-------------------------------------
 
-// Copyright 2000, Willem van Schaik.  For conditions of distribution and
-// use, see the copyright/license/disclaimer notice in png.h
+// Copyright 2000, Willem van Schaik.
+//
+// This code is released under the libpng license.
+// For conditions of distribution and use, see the disclaimer
+// and license in png.h
 
 #include <windows.h>
 #include <commdlg.h>
@@ -123,7 +126,7 @@ BOOL PngLoadImage (PTSTR pstrFileName, png_byte **ppbImageData,
     // first check the eight byte PNG signature
 
     fread(pbSig, 1, 8, pfFile);
-    if (!png_check_sig(pbSig, 8))
+    if (png_sig_cmp(pbSig, 0, 8))
     {
         *ppbImageData = pbImageData = NULL;
         return FALSE;

contrib/visupng/PngFile.h

@@ -2,8 +2,11 @@
 //  PNGFILE.H -- Header File for pngfile.c
 //------------------------------------------
 
-// Copyright 2000, Willem van Schaik.  For conditions of distribution and
-// use, see the copyright/license/disclaimer notice in png.h
+// Copyright 2000, Willem van Schaik.
+
+// This code is released under the libpng license.
+// For conditions of distribution and use, see the disclaimer
+// and license in png.h
 
 #include <stdio.h>
 #include <stdlib.h>

contrib/visupng/README.txt

@@ -1,8 +1,11 @@
 Microsoft Developer Studio Build File, Format Version 6.00 for VisualPng
 ------------------------------------------------------------------------
 
-Copyright 2000, Willem van Schaik.  For conditions of distribution and
-use, see the copyright/license/disclaimer notice in png.h
+Copyright 2000, Willem van Schaik.
+
+This code is released under the libpng license.
+For conditions of distribution and use, see the disclaimer
+and license in png.h
 
 As a PNG .dll demo VisualPng is finished. More features would only hinder
 the program's objective. However, further extensions (like support for other 
@@ -13,8 +16,8 @@ binaries, go to "http://www.schaik.com/png/visualpng.html".
 
 Assumes that
 
-   libpng DLLs and LIBs are in ..\..\dll\msvc\win32\libpng
-   zlib DLLs and LIBs are in   ..\..\dll\msvc\win32\zlib
+   libpng DLLs and LIBs are in ..\..\projects\msvc\win32\libpng
+   zlib DLLs and LIBs are in   ..\..\projects\msvc\win32\zlib
    libpng header files are in  ..\..\..\libpng
    zlib header files are in    ..\..\..\zlib
    the pngsuite images are in  ..\pngsuite

contrib/visupng/VisualPng.c

@@ -2,8 +2,11 @@
 //  VisualPng.C -- Shows a PNG image
 //------------------------------------
 
-// Copyright 2000, Willem van Schaik.  For conditions of distribution and
-// use, see the copyright/license/disclaimer notice in png.h
+// Copyright 2000, Willem van Schaik.
+
+// This code is released under the libpng license.
+// For conditions of distribution and use, see the disclaimer
+// and license in png.h
 
 // switches
 

contrib/visupng/VisualPng.dsp

@@ -1,223 +1,147 @@
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-# Microsoft Developer Studio Generated Build File, Format Version 6.00
-
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-
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-
-# TARGTYPE "Win32 (x86) Application" 0x0101
-
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-!MESSAGE 
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-!MESSAGE 
-!MESSAGE Possible choices for configuration are:
-!MESSAGE 
-!MESSAGE "VisualPng - Win32 DLL" (based on "Win32 (x86) Application")
-!MESSAGE "VisualPng - Win32 Debug DLL" (based on "Win32 (x86) Application")
-!MESSAGE "VisualPng - Win32 LIB" (based on "Win32 (x86) Application")
-!MESSAGE "VisualPng - Win32 Debug LIB" (based on "Win32 (x86) Application")
-!MESSAGE 
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-!IF  "$(CFG)" == "VisualPng - Win32 DLL"
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-# ADD CPP /nologo /W3 /GX /O2 /I "..\..\..\libpng" /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /D "_MBCS" /D "PNG_USE_DLL" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
-# SUBTRACT CPP /YX
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-
-SOURCE=.\VisualPng.rc
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+# Microsoft Developer Studio Project File - Name="VisualPng" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
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+
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+
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+!MESSAGE Possible choices for configuration are:
+!MESSAGE 
+!MESSAGE "VisualPng - Win32 Release" (based on "Win32 (x86) Application")
+!MESSAGE "VisualPng - Win32 Debug" (based on "Win32 (x86) Application")
+!MESSAGE 
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName ""
+# PROP Scc_LocalPath ""
+CPP=cl.exe
+MTL=midl.exe
+RSC=rc.exe
+
+!IF  "$(CFG)" == "VisualPng - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Ignore_Export_Lib 0
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Ignore_Export_Lib 0
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
+# SUBTRACT BASE CPP /YX
+# ADD CPP /nologo /MD /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /c
+# SUBTRACT CPP /YX
+# ADD BASE MTL /nologo /D "NDEBUG" /mktyplib203 /win32
+# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
+# 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 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
+# ADD LINK32 ..\..\projects\visualc6\Win32_LIB_Release\libpng.lib ..\..\..\zlib\projects\visualc6\Win32_LIB_Release\zlib.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
+# Begin Special Build Tool
+OutDir=.\Release
+SOURCE="$(InputPath)"
+PostBuild_Cmds=$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
+# End Special Build Tool
+
+!ELSEIF  "$(CFG)" == "VisualPng - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
+# PROP BASE Ignore_Export_Lib 0
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "Debug"
+# PROP Intermediate_Dir "Debug"
+# PROP Ignore_Export_Lib 0
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /Gm /ZI /Od /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "_DEBUG" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /GZ /c
+# SUBTRACT BASE CPP /YX
+# ADD CPP /nologo /MDd /W3 /Gm /ZI /Od /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "_DEBUG" /D "PNG_NO_STDIO" /D "PNG_NO_GLOBAL_ARRAYS" /FD /GZ /c
+# SUBTRACT CPP /YX
+# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
+# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32
+# ADD BASE RSC /l 0x409 /d "_DEBUG"
+# ADD RSC /l 0x409 /d "_DEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 ..\..\projects\visualc6\Win32_LIB_Release\libpng.lib ..\..\..\zlib\projects\visualc6\Win32_LIB_Release\zlib.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"msvcrt.lib" /pdbtype:sept
+# Begin Special Build Tool
+OutDir=.\Debug
+SOURCE="$(InputPath)"
+PostBuild_Cmds=$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
+# End Special Build Tool
+
+!ENDIF 
+
+# Begin Target
+
+# Name "VisualPng - Win32 Release"
+# Name "VisualPng - Win32 Debug"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
+# Begin Source File
+
+SOURCE=.\PngFile.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\VisualPng.c
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h;hpp;hxx;hm;inl"
+# Begin Source File
+
+SOURCE=.\cexcept.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\PngFile.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\resource.h
+# End Source File
+# End Group
+# Begin Group "Resource Files"
+
+# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+# Begin Source File
+
+SOURCE=.\VisualPng.ico
+# End Source File
+# Begin Source File
+
+SOURCE=.\VisualPng.rc
+# End Source File
+# End Group
+# End Target
+# End Project

contrib/visupng/VisualPng.dsw

@@ -1,29 +1,29 @@
-Microsoft Developer Studio Workspace File, Format Version 6.00
-# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
-
-###############################################################################
-
-Project: "VisualPng"=.\VisualPng.dsp - Package Owner=<4>
-
-Package=<5>
-{{{
-}}}
-
-Package=<4>
-{{{
-}}}
-
-###############################################################################
-
-Global:
-
-Package=<5>
-{{{
-}}}
-
-Package=<3>
-{{{
-}}}
-
-###############################################################################
-
+Microsoft Developer Studio Workspace File, Format Version 6.00
+# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
+
+###############################################################################
+
+Project: "VisualPng"=.\VisualPng.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+}}}
+
+###############################################################################
+
+Global:
+
+Package=<5>
+{{{
+}}}
+
+Package=<3>
+{{{
+}}}
+
+###############################################################################
+

contrib/visupng/VisualPng.rc

@@ -1,152 +1,152 @@
-//Microsoft Developer Studio generated resource script.
-//
-#include "resource.h"
-
-#define APSTUDIO_READONLY_SYMBOLS
-/////////////////////////////////////////////////////////////////////////////
-//
-// Generated from the TEXTINCLUDE 2 resource.
-//
-#include "afxres.h"
-
-/////////////////////////////////////////////////////////////////////////////
-#undef APSTUDIO_READONLY_SYMBOLS
-
-/////////////////////////////////////////////////////////////////////////////
-// English (U.S.) resources
-
-#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
-#ifdef _WIN32
-LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
-#pragma code_page(1252)
-#endif //_WIN32
-
-#ifdef APSTUDIO_INVOKED
-/////////////////////////////////////////////////////////////////////////////
-//
-// TEXTINCLUDE
-//
-
-1 TEXTINCLUDE DISCARDABLE 
-BEGIN
-    "resource.h\0"
-END
-
-2 TEXTINCLUDE DISCARDABLE 
-BEGIN
-    "#include ""afxres.h""\r\n"
-    "\0"
-END
-
-3 TEXTINCLUDE DISCARDABLE 
-BEGIN
-    "\r\n"
-    "\0"
-END
-
-#endif    // APSTUDIO_INVOKED
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Menu
-//
-
-VISUALPNG MENU DISCARDABLE 
-BEGIN
-    POPUP "&File"
-    BEGIN
-        MENUITEM "&Open Image...\tCtrl+O",      IDM_FILE_OPEN
-        MENUITEM "Save &As...",                 IDM_FILE_SAVE
-        MENUITEM SEPARATOR
-        MENUITEM "&Next Image\tCtrl+N",         IDM_FILE_NEXT
-        MENUITEM "Pre&vious Image\tCtrl+V",     IDM_FILE_PREVIOUS
-        MENUITEM SEPARATOR
-        MENUITEM "E&xit\tAlt+X",                IDM_FILE_EXIT
-    END
-    POPUP "&Options"
-    BEGIN
-        MENUITEM "&Stretch",                    IDM_OPTIONS_STRETCH, CHECKED
-    END
-    POPUP "&Help"
-    BEGIN
-        MENUITEM "&About",                      IDM_HELP_ABOUT
-    END
-END
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Accelerator
-//
-
-VISUALPNG ACCELERATORS DISCARDABLE 
-BEGIN
-    "N",            IDM_FILE_NEXT,          VIRTKEY, CONTROL, NOINVERT
-    "O",            IDM_FILE_OPEN,          VIRTKEY, CONTROL, NOINVERT
-    "P",            IDM_FILE_PREVIOUS,      VIRTKEY, CONTROL, NOINVERT
-    "V",            IDM_FILE_PREVIOUS,      VIRTKEY, CONTROL, NOINVERT
-    "X",            IDM_FILE_EXIT,          VIRTKEY, ALT, NOINVERT
-END
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Icon
-//
-
-// Icon with lowest ID value placed first to ensure application icon
-// remains consistent on all systems.
-VISUALPNG               ICON    DISCARDABLE     "VisualPng.ico"
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// Dialog
-//
-
-ABOUTBOX DIALOG DISCARDABLE  0, 0, 186, 94
-STYLE DS_MODALFRAME | WS_POPUP
-FONT 8, "MS Sans Serif"
-BEGIN
-    DEFPUSHBUTTON   "OK",IDOK,68,67,50,14
-    CTEXT           "VisualPng 1.0  -  June 2000",IDC_STATIC,49,14,88,8
-    LTEXT           "a PNG image viewer",IDC_STATIC,60,30,66,8
-    LTEXT           "(c) Willem van Schaik, 2000",IDC_STATIC,48,52,90,8
-    LTEXT           "to demonstrate the use of libpng in Visual C",
-                    IDC_STATIC,25,38,136,8
-END
-
-
-/////////////////////////////////////////////////////////////////////////////
-//
-// DESIGNINFO
-//
-
-#ifdef APSTUDIO_INVOKED
-GUIDELINES DESIGNINFO DISCARDABLE 
-BEGIN
-    "ABOUTBOX", DIALOG
-    BEGIN
-        LEFTMARGIN, 7
-        RIGHTMARGIN, 179
-        TOPMARGIN, 7
-        BOTTOMMARGIN, 87
-    END
-END
-#endif    // APSTUDIO_INVOKED
-
-#endif    // English (U.S.) resources
-/////////////////////////////////////////////////////////////////////////////
-
-
-
-#ifndef APSTUDIO_INVOKED
-/////////////////////////////////////////////////////////////////////////////
-//
-// Generated from the TEXTINCLUDE 3 resource.
-//
-
-
-/////////////////////////////////////////////////////////////////////////////
-#endif    // not APSTUDIO_INVOKED
-
+//Microsoft Developer Studio generated resource script.
+//
+#include "resource.h"
+
+#define APSTUDIO_READONLY_SYMBOLS
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 2 resource.
+//
+#include "afxres.h"
+
+/////////////////////////////////////////////////////////////////////////////
+#undef APSTUDIO_READONLY_SYMBOLS
+
+/////////////////////////////////////////////////////////////////////////////
+// English (U.S.) resources
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+#ifdef _WIN32
+LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
+#pragma code_page(1252)
+#endif //_WIN32
+
+#ifdef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// TEXTINCLUDE
+//
+
+1 TEXTINCLUDE DISCARDABLE 
+BEGIN
+    "resource.h\0"
+END
+
+2 TEXTINCLUDE DISCARDABLE 
+BEGIN
+    "#include ""afxres.h""\r\n"
+    "\0"
+END
+
+3 TEXTINCLUDE DISCARDABLE 
+BEGIN
+    "\r\n"
+    "\0"
+END
+
+#endif    // APSTUDIO_INVOKED
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Menu
+//
+
+VISUALPNG MENU DISCARDABLE 
+BEGIN
+    POPUP "&File"
+    BEGIN
+        MENUITEM "&Open Image...\tCtrl+O",      IDM_FILE_OPEN
+        MENUITEM "Save &As...",                 IDM_FILE_SAVE
+        MENUITEM SEPARATOR
+        MENUITEM "&Next Image\tCtrl+N",         IDM_FILE_NEXT
+        MENUITEM "Pre&vious Image\tCtrl+V",     IDM_FILE_PREVIOUS
+        MENUITEM SEPARATOR
+        MENUITEM "E&xit\tAlt+X",                IDM_FILE_EXIT
+    END
+    POPUP "&Options"
+    BEGIN
+        MENUITEM "&Stretch",                    IDM_OPTIONS_STRETCH, CHECKED
+    END
+    POPUP "&Help"
+    BEGIN
+        MENUITEM "&About",                      IDM_HELP_ABOUT
+    END
+END
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Accelerator
+//
+
+VISUALPNG ACCELERATORS DISCARDABLE 
+BEGIN
+    "N",            IDM_FILE_NEXT,          VIRTKEY, CONTROL, NOINVERT
+    "O",            IDM_FILE_OPEN,          VIRTKEY, CONTROL, NOINVERT
+    "P",            IDM_FILE_PREVIOUS,      VIRTKEY, CONTROL, NOINVERT
+    "V",            IDM_FILE_PREVIOUS,      VIRTKEY, CONTROL, NOINVERT
+    "X",            IDM_FILE_EXIT,          VIRTKEY, ALT, NOINVERT
+END
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Icon
+//
+
+// Icon with lowest ID value placed first to ensure application icon
+// remains consistent on all systems.
+VISUALPNG               ICON    DISCARDABLE     "VisualPng.ico"
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Dialog
+//
+
+ABOUTBOX DIALOG DISCARDABLE  0, 0, 186, 94
+STYLE DS_MODALFRAME | WS_POPUP
+FONT 8, "MS Sans Serif"
+BEGIN
+    DEFPUSHBUTTON   "OK",IDOK,68,67,50,14
+    CTEXT           "VisualPng 1.0  -  June 2000",IDC_STATIC,49,14,88,8
+    LTEXT           "a PNG image viewer",IDC_STATIC,60,30,66,8
+    LTEXT           "(c) Willem van Schaik, 2000",IDC_STATIC,48,52,90,8
+    LTEXT           "to demonstrate the use of libpng in Visual C",
+                    IDC_STATIC,25,38,136,8
+END
+
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// DESIGNINFO
+//
+
+#ifdef APSTUDIO_INVOKED
+GUIDELINES DESIGNINFO DISCARDABLE 
+BEGIN
+    "ABOUTBOX", DIALOG
+    BEGIN
+        LEFTMARGIN, 7
+        RIGHTMARGIN, 179
+        TOPMARGIN, 7
+        BOTTOMMARGIN, 87
+    END
+END
+#endif    // APSTUDIO_INVOKED
+
+#endif    // English (U.S.) resources
+/////////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef APSTUDIO_INVOKED
+/////////////////////////////////////////////////////////////////////////////
+//
+// Generated from the TEXTINCLUDE 3 resource.
+//
+
+
+/////////////////////////////////////////////////////////////////////////////
+#endif    // not APSTUDIO_INVOKED
+

contrib/visupng/cexcept.h

@@ -1,22 +1,30 @@
 /*===
-cexcept.h 1.0.0 (2000-Jun-21-Wed)
-Adam M. Costello <amc@cs.berkeley.edu>
+cexcept.h 2.0.1 (2008-Jul-19-Sat)
+http://www.nicemice.net/cexcept/
+Adam M. Costello
+http://www.nicemice.net/amc/
 
-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.
 
-    Copyright (c) 2000 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.
+    Copyright (c) 2000-2008 Adam M. Costello and Cosmin Truta.
+    This software may be modified only if its author and version
+    information is updated accurately, and may be redistributed
+    only if accompanied by this unaltered notice.  Subject to those
+    restrictions, permission is granted to anyone to do anything
+    with this software.  The copyright holders make no guarantees
+    regarding this software, and are not responsible for any damage
+    resulting from its use.
 
-If this interface is used by multiple .c files, they shouldn't include
+The cexcept interface is not compatible with and cannot interact
+with system exceptions (like division by zero or memory segmentation
+violation), compiler-generated exceptions (like C++ exceptions), or
+other exception-handling interfaces.
+
+When using this interface across multiple .c files, do not include
 this header file directly.  Instead, create a wrapper header file that
 includes this header file and then invokes the define_exception_type
-macro (see below), and let your .c files include that header file.
+macro (see below).  The .c files should then include that header file.
 
 The interface consists of one type, one well-known name, and six macros.
 
@@ -37,6 +45,10 @@ 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 +74,7 @@ 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 +119,15 @@ 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 +137,8 @@ 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) { ... }
@@ -158,7 +169,7 @@ Throw expression;
     be compatible with the type passed to define_exception_type().  The
     exception must be caught, otherwise the program may crash.
 
-    Slight limitation:  If the expression is a comma-expression it must
+    Slight limitation:  If the expression is a comma-expression, it must
     be enclosed in parentheses.
 
 
@@ -183,62 +194,55 @@ 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) { \
+      do
 
-#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) \
+      while (the_exception_context->caught = 0, \
+             the_exception_context->caught); \
+    } \
+    else { \
+      the_exception_context->caught = 1; \
+    } \
+    the_exception_context->penv = exception__prev; \
   } \
-  if (!the_exception_context->caught) { } \
+  if (!the_exception_context->caught || action) { } \
   else
 
-/* 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.                                                    */
+#define Catch(e) exception__catch(((e) = the_exception_context->v.etmp, 0))
+#define Catch_anonymous exception__catch(0)
+
+/* Try ends with do, and Catch begins with while(0) and ends with     */
+/* else, to ensure that Try/Catch syntax is similar to if/else        */
+/* syntax.                                                            */
 /*                                                                    */
-/* We use &exception__s 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.              */
+/* The 0 in while(0) is expressed as x=0,x in order to appease        */
+/* compilers that warn about constant expressions inside while().     */
+/* Most compilers should still recognize that the condition is always */
+/* false and avoid generating code for it.                            */
 
 #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 */

depcomp

@@ -0,0 +1,630 @@
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2009-04-28.21; # UTC
+
+# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
+# Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+case $1 in
+  '')
+     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+  depmode     Dependency tracking mode.
+  source      Source file read by `PROGRAMS ARGS'.
+  object      Object file output by `PROGRAMS ARGS'.
+  DEPDIR      directory where to store dependencies.
+  depfile     Dependency file to output.
+  tmpdepfile  Temporary file to use when outputing dependencies.
+  libtool     Whether libtool is used (yes/no).
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "depcomp $scriptversion"
+    exit $?
+    ;;
+esac
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+   # This is just like dashmstdout with a different argument.
+   dashmflag=-xM
+   depmode=dashmstdout
+fi
+
+cygpath_u="cygpath -u -f -"
+if test "$depmode" = msvcmsys; then
+   # This is just like msvisualcpp but w/o cygpath translation.
+   # Just convert the backslash-escaped backslashes to single forward
+   # slashes to satisfy depend.m4
+   cygpath_u="sed s,\\\\\\\\,/,g"
+   depmode=msvisualcpp
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am.  Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+  for arg
+  do
+    case $arg in
+    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+    *)  set fnord "$@" "$arg" ;;
+    esac
+    shift # fnord
+    shift # $arg
+  done
+  "$@"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
+## The second -e expression handles DOS-style file names with drive letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the `deleted header file' problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+  tr ' ' '
+' < "$tmpdepfile" |
+## Some versions of gcc put a space before the `:'.  On the theory
+## that the space means something, we add a space to the output as
+## well.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like `#:fec' to the end of the
+    # dependency line.
+    tr ' ' '
+' < "$tmpdepfile" \
+    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
+    tr '
+' ' ' >> "$depfile"
+    echo >> "$depfile"
+
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' '
+' < "$tmpdepfile" \
+   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+   >> "$depfile"
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  In older versions, this file always lives in the
+  # current directory.  Also, the AIX compiler puts `$object:' at the
+  # start of each line; $object doesn't have directory information.
+  # Version 6 uses the directory in both cases.
+  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  test "x$dir" = "x$object" && dir=
+  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$base.u
+    tmpdepfile3=$dir.libs/$base.u
+    "$@" -Wc,-M
+  else
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$dir$base.u
+    tmpdepfile3=$dir$base.u
+    "$@" -M
+  fi
+  stat=$?
+
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form `foo.o: dependent.h'.
+    # Do two passes, one to just change these to
+    # `$object: dependent.h' and one to simply `dependent.h:'.
+    sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+    # That's a tab and a space in the [].
+    sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+icc)
+  # Intel's C compiler understands `-MD -MF file'.  However on
+  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
+  # ICC 7.0 will fill foo.d with something like
+  #    foo.o: sub/foo.c
+  #    foo.o: sub/foo.h
+  # which is wrong.  We want:
+  #    sub/foo.o: sub/foo.c
+  #    sub/foo.o: sub/foo.h
+  #    sub/foo.c:
+  #    sub/foo.h:
+  # ICC 7.1 will output
+  #    foo.o: sub/foo.c sub/foo.h
+  # and will wrap long lines using \ :
+  #    foo.o: sub/foo.c ... \
+  #     sub/foo.h ... \
+  #     ...
+
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each line is of the form `foo.o: dependent.h',
+  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+  # Do two passes, one to just change these to
+  # `$object: dependent.h' and one to simply `dependent.h:'.
+  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
+    sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp2)
+  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+  # compilers, which have integrated preprocessors.  The correct option
+  # to use with these is +Maked; it writes dependencies to a file named
+  # 'foo.d', which lands next to the object file, wherever that
+  # happens to be.
+  # Much of this is similar to the tru64 case; see comments there.
+  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  test "x$dir" = "x$object" && dir=
+  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir.libs/$base.d
+    "$@" -Wc,+Maked
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    "$@" +Maked
+  fi
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+     rm -f "$tmpdepfile1" "$tmpdepfile2"
+     exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
+    # Add `dependent.h:' lines.
+    sed -ne '2,${
+	       s/^ *//
+	       s/ \\*$//
+	       s/$/:/
+	       p
+	     }' "$tmpdepfile" >> "$depfile"
+  else
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile" "$tmpdepfile2"
+  ;;
+
+tru64)
+   # The Tru64 compiler uses -MD to generate dependencies as a side
+   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+   # dependencies in `foo.d' instead, so we check for that too.
+   # Subdirectories are respected.
+   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+   test "x$dir" = "x$object" && dir=
+   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+
+   if test "$libtool" = yes; then
+      # With Tru64 cc, shared objects can also be used to make a
+      # static library.  This mechanism is used in libtool 1.4 series to
+      # handle both shared and static libraries in a single compilation.
+      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
+      #
+      # With libtool 1.5 this exception was removed, and libtool now
+      # generates 2 separate objects for the 2 libraries.  These two
+      # compilations output dependencies in $dir.libs/$base.o.d and
+      # in $dir$base.o.d.  We have to check for both files, because
+      # one of the two compilations can be disabled.  We should prefer
+      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+      # automatically cleaned when .libs/ is deleted, while ignoring
+      # the former would cause a distcleancheck panic.
+      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
+      tmpdepfile2=$dir$base.o.d          # libtool 1.5
+      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
+      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
+      "$@" -Wc,-MD
+   else
+      tmpdepfile1=$dir$base.o.d
+      tmpdepfile2=$dir$base.d
+      tmpdepfile3=$dir$base.d
+      tmpdepfile4=$dir$base.d
+      "$@" -MD
+   fi
+
+   stat=$?
+   if test $stat -eq 0; then :
+   else
+      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+      exit $stat
+   fi
+
+   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+   do
+     test -f "$tmpdepfile" && break
+   done
+   if test -f "$tmpdepfile"; then
+      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+      # That's a tab and a space in the [].
+      sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+   else
+      echo "#dummy" > "$depfile"
+   fi
+   rm -f "$tmpdepfile"
+   ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout, regardless of -o.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove `-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  test -z "$dashmflag" && dashmflag=-M
+  # Require at least two characters before searching for `:'
+  # in the target name.  This is to cope with DOS-style filenames:
+  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
+  "$@" $dashmflag |
+    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  "$@" || exit $?
+  # Remove any Libtool call
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+  # X makedepend
+  shift
+  cleared=no eat=no
+  for arg
+  do
+    case $cleared in
+    no)
+      set ""; shift
+      cleared=yes ;;
+    esac
+    if test $eat = yes; then
+      eat=no
+      continue
+    fi
+    case "$arg" in
+    -D*|-I*)
+      set fnord "$@" "$arg"; shift ;;
+    # Strip any option that makedepend may not understand.  Remove
+    # the object too, otherwise makedepend will parse it as a source file.
+    -arch)
+      eat=yes ;;
+    -*|$object)
+      ;;
+    *)
+      set fnord "$@" "$arg"; shift ;;
+    esac
+  done
+  obj_suffix=`echo "$object" | sed 's/^.*\././'`
+  touch "$tmpdepfile"
+  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  sed '1,2d' "$tmpdepfile" | tr ' ' '
+' | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove `-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  "$@" -E |
+    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+       -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
+    sed '$ s: \\$::' > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  IFS=" "
+  for arg
+  do
+    case "$arg" in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+	set fnord "$@"
+	shift
+	shift
+	;;
+    *)
+	set fnord "$@" "$arg"
+	shift
+	shift
+	;;
+    esac
+  done
+  "$@" -E 2>/dev/null |
+  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
+  echo "	" >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvcmsys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:

dll/msvc/README.txt

@@ -1,47 +0,0 @@
-Microsoft Developer Studio Build File, Format Version 6.00 for
-libpng 1.0.9beta1 (November 10, 2000) and zlib
-
-Copyright (C) 2000 Simon-Pierre Cadieux
-For conditions of distribution and use, see copyright notice in png.h
-
-Assumes that libpng sources are in ..\..
-Assumes that zlib sources have been copied to ..\..\..\zlib
-
-To build:
-
-1) On the main menu Select "Build|Set Active configuration". 
-   Among the configurations beginning with "libpng" select the 
-   one you wish to build (the corresponding "zlib" configuration
-   will be built automatically).
-
-2) Select "Build|Clean"
-
-3) Select "Build|Rebuild All"
-
-4) Look in the appropriate "win32" subdirectories for both "zlib"
-   and "libpng" binaries.
-
-This project will build the PNG Development Group's "official" versions of
-libpng and zlib libraries:
-
-   libpng1.dll          (default version, currently C code only)
-   libpng1a.dll         (C + Assembler version)
-   libpng1b.dll         (C + Assembler debug version)
-   libpng1d.dll         (C code debug version)
-   libpng1[c,e-m].dll   (reserved for official versions) 
-   libpng1[n-z].dll     (available for private versions)
-   zlib.dll             (default version, currently C code only)
-   zlibd.dll            (debug version)
-
-If you change anything in libpng, or select different compiler settings,
-please change the library name to an unreserved name, and define
-DLLFNAME_POSTFIX and (PRIVATEBUILD or SPECIALBUILD) accordingly. DLLFNAME_POSTFIX
-should correspond to a string in the range of "N" to "Z" depending on the letter 
-you choose for your private version.
-
-All DLLs built by this project use the Microsoft dynamic C runtime library
-MSVCRT.DLL (MSVCRTD.DLL for debug versions). If you distribute any of the
-above mentioned libraries you should also include this DLL in your package.
-For a list of files that are redistributable in Visual C++ 6.0, see
-Common\Redist\Redist.txt on Disc 1 of the Visual C++ 6.0 product CDs. 
-

dll/msvc/libpng.dsp

@@ -1,367 +0,0 @@
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-!ELSEIF  "$(CFG)" == "libpng - Win32 LIB Debug"
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-# Name "libpng - Win32 DLL"
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-# PROP Exclude_From_Build 1
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-# End Source File
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-SOURCE=..\..\pngerror.c
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-!IF  "$(CFG)" == "libpng - Win32 DLL"
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dll/msvc/libpng.dsw

@@ -1,44 +0,0 @@
-Microsoft Developer Studio Workspace File, Format Version 6.00
-# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
-
-###############################################################################
-
-Project: "libpng"=.\libpng.dsp - Package Owner=<4>
-
-Package=<5>
-{{{
-}}}
-
-Package=<4>
-{{{
-    Begin Project Dependency
-    Project_Dep_Name zlib
-    End Project Dependency
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-###############################################################################
-

dll/msvc/png.rc

@@ -1,86 +0,0 @@
-#define PNG_VERSION_INFO_ONLY
-
-#include <windows.h>
-#include "png.h"
-
-#define _QUOTE(x) # x
-#define QUOTE(x) _QUOTE(x)
-
-#define PNG_LIBPNG_DLLFNAME "LIBPNG"
-
-#if defined(DLLFNAME_POSTFIX) && !defined(PRIVATEBUILD) && !defined(SPECIALBUILD)
-#  error PRIVATEBUILD or SPECIALBUILD must be defined as a string describing the type of change brought to the standard library
-#endif /* defined(DLLFNAME_POSTFIX)... */
-
-#if !defined(DLLFNAME_POSTFIX) && defined(PNG_USE_PNGVCRD)
-#  if defined(PNG_DEBUG) && (PNG_DEBUG > 0)
-#    define DLLFNAME_POSTFIX "B"
-#  else
-#    define DLLFNAME_POSTFIX "A"
-#  endif /* !defined(DLLFNAME_POSTFIX)... */
-#  if !defined(SPECIALBUILD)
-#    define SPECIALBUILD "Use MMX instructions"
-#  endif /* SPECIALBUILD */
-#endif
-
-#if defined(PNG_DEBUG) && (PNG_DEBUG > 0)
-#  define VS_DEBUG VS_FF_DEBUG
-#  ifndef DLLFNAME_POSTFIX
-#    define DLLFNAME_POSTFIX "D"
-#  endif /* DLLFNAME_POSTFIX */
-#  ifndef COMMENTS 
-#    define COMMENTS "PNG_DEBUG=" QUOTE(PNG_DEBUG)
-#  endif /* COMMENTS */
-#else
-#  define VS_DEBUG 0
-#  ifndef DLLFNAME_POSTFIX
-#     define DLLFNAME_POSTFIX
-#  endif /* DLLFNAME_POSTFIX */
-#endif /* defined(DEBUG)... */
-
-#ifdef PRIVATEBUILD
-#  define VS_PRIVATEBUILD VS_FF_PRIVATEBUILD
-#else
-#  define VS_PRIVATEBUILD 0
-#endif /* PRIVATEBUILD */
-
-#ifdef SPECIALBUILD
-#  define VS_SPECIALBUILD VS_FF_SPECIALBUILD
-#else
-#  define VS_SPECIALBUILD 0
-#endif /* SPECIALBUILD */
-
-VS_VERSION_INFO VERSIONINFO 
-FILEVERSION PNG_LIBPNG_VER_MAJOR, PNG_LIBPNG_VER_MINOR, PNG_LIBPNG_VER_RELEASE, PNG_LIBPNG_VER_BUILD
-PRODUCTVERSION PNG_LIBPNG_VER_MAJOR, PNG_LIBPNG_VER_MINOR, PNG_LIBPNG_VER_RELEASE, PNG_LIBPNG_VER_BUILD
-FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
-FILEFLAGS VS_DEBUG | VS_PRIVATEBUILD | VS_SPECIALBUILD
-FILEOS VOS__WINDOWS32
-FILETYPE VFT_DLL
-BEGIN
-  BLOCK "StringFileInfo"
-  BEGIN BLOCK "040904E4" /* Language type = U.S English(0x0409) and Character Set = Windows, Multilingual(0x04E4) */
-    BEGIN
-#ifdef COMMENTS
-      VALUE "Comments", COMMENTS "\000"
-#endif /* COMMENTS */
-      VALUE "FileDescription", "PNG image compression library\000"
-      VALUE "FileVersion", PNG_LIBPNG_VER_STRING "\000"
-      VALUE "InternalName", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_MAJOR) DLLFNAME_POSTFIX " (Windows 32 bit)\000"
-      VALUE "LegalCopyright", "\251 1998-2000 Glenn Randers-Pehrson\000"
-      VALUE "OriginalFilename", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_MAJOR) DLLFNAME_POSTFIX ".DLL\000"
-#ifdef PRIVATEBUILD
-      VALUE "PrivateBuild", PRIVATEBUILD
-#endif /* PRIVATEBUILD */
-      VALUE "ProductName", "LibPNG\000"
-      VALUE "ProductVersion", "1\000"
-#ifdef SPECIALBUILD
-      VALUE "SpecialBuild", SPECIALBUILD
-#endif /* SPECIALBUILD */
-    END
-  END
-  BLOCK "VarFileInfo"
-  BEGIN
-    VALUE "Translation", 0x0409, 0x04E4
-  END
-END

dll/msvc/zlib.def

@@ -1,45 +0,0 @@
-LIBRARY
-DESCRIPTION "zlib compression library for Windows"
-
-EXPORTS
-    adler32                        @1
-    compress                       @2
-    crc32                          @3
-    deflate                        @4
-    deflateCopy                    @5
-    deflateEnd                     @6
-    deflateInit2_                  @7
-    deflateInit_                   @8
-    deflateParams                  @9
-    deflateReset                   @10
-    deflateSetDictionary           @11
-    gzclose                        @12
-    gzdopen                        @13
-    gzerror                        @14
-    gzflush                        @15
-    gzopen                         @16
-    gzread                         @17
-    gzwrite                        @18
-    inflate                        @19
-    inflateEnd                     @20
-    inflateInit2_                  @21
-    inflateInit_                   @22
-    inflateReset                   @23
-    inflateSetDictionary           @24
-    inflateSync                    @25
-    uncompress                     @26
-    zlibVersion                    @27
-    gzprintf                       @28
-    gzputc                         @29
-    gzgetc                         @30
-    gzseek                         @31
-    gzrewind                       @32
-    gztell                         @33
-    gzeof                          @34
-    gzsetparams                    @35
-    zError                         @36
-    inflateSyncPoint               @37
-    get_crc_table                  @38
-    compress2                      @39
-    gzputs                         @40
-    gzgets                         @41

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dll/wince/READMEE.WCE

@@ -1,43 +0,0 @@
-libpng for WindowsCE Rel.1.0
-============================
- Copyright (c) 2000 Glenn Randers-Pehrson
- Copyright (c) 2000 Tenik Co.,Ltd.
-
- Porting for WindowsCE by Tenik Co.,Ltd.(Kazuo Adachi)
-
-
-Introduction
-============
-This is libpng 1.0.9beta1 ported to WindowsCE 2.0 and 2.11.
-libpng 1.0.9beta1 is a PNG reference library.
-See README, a document of original libpng 1.0.9beta1.
-
-zlib for WindowsCE
-==================
-This library requires zlib for WindowsCE.  You can use the supplied
-zlib.diff and zlibce.def files to add WindowsCE support to libpng-1.1.3.
-
-Copyright notice
-================
-This software is provided 'as-is', without any express or implied
-warranty.  In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-See README and LICENSE, documents of original libpng 1.0.9beta1, for conditions
-of use and distribution.
-
-Files
-=====
-
- READMEE.WCE - this file(in English)
- READMEJ.WCE - this file(in Japanese)
- png32ce.def - module definition file to make DLLs
-
-Sample programs(../../pngtest.c and ../../contrib/*) can build on WindowsCE
-2.11.  WindowsCE 2.0 and below do not support 'console' functions.
-
-Author
-======
-Tenik Co.,Ltd.
-Kazuo Adachi
-adachi@tenik.co.jp

dll/wince/READMEJ.WCE

@@ -1,44 +0,0 @@
-libpng for WindowsCE Rel.1.0
-============================
- Copyright (c) 2000 Glenn Randers-Pehrson
- Copyright (c) 2000 Tenik Co.,Ltd.
-
- Porting for WindowsCE by Tenik Co.,Ltd.(Kazuo Adachi)
-
-
-<EFBFBD>͂<EFBFBD><EFBFBD>߂<EFBFBD>
-========
-libpng for WindowsCE<43><45> PNG<4E>`<60><><EFBFBD>̉摜<CC89>f<EFBFBD>[<5B>^<5E><><EFBFBD>C<EFBFBD>u<EFBFBD><75><EFBFBD><EFBFBD> libpng<6E><67>WindowsCE
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-
-zlib for WindowsCE
-==================
-libpng<EFBFBD>ł́A<EFBFBD>f<EFBFBD>[<5B>^<5E><><EFBFBD>k<EFBFBD><6B><EFBFBD>C<EFBFBD>u<EFBFBD><75><EFBFBD><EFBFBD><EFBFBD>Ƃ<EFBFBD><C682><EFBFBD> zlib<69><62><EFBFBD>g<EFBFBD>p<EFBFBD><70><EFBFBD>Ă<EFBFBD><C482>܂<EFBFBD><DC82>Blibpng<6E><67>
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-
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-
-<EFBFBD>g<EFBFBD>p<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-========
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-<EFBFBD>ɂȂ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȃ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Q<EFBFBD>ɂ‚<EFBFBD><EFBFBD>Ă<EFBFBD><EFBFBD>A<EFBFBD><EFBFBD><EFBFBD>ҁA<EFBFBD>z<EFBFBD>z<EFBFBD>ҁA<EFBFBD><EFBFBD><EFBFBD>̑<EFBFBD><EFBFBD><EFBFBD><EFBFBD>p<EFBFBD>҈ȊO<EFBFBD>̐l<EFBFBD><EFBFBD><EFBFBD>A
-<EFBFBD>c<EFBFBD>̂ɐӔC<EFBFBD><EFBFBD><EFBFBD>Ƃ<EFBFBD><EFBFBD>`<60><><EFBFBD>͂Ȃ<CD82><C882><EFBFBD><EFBFBD>̂Ƃ<CC82><C682>܂<EFBFBD><DC82>B
-
-<EFBFBD><EFBFBD><EFBFBD>̑<EFBFBD><EFBFBD>A<EFBFBD><EFBFBD><EFBFBD>̃\<5C>t<EFBFBD>g<EFBFBD>E<EFBFBD>F<EFBFBD>A<EFBFBD>̗<EFBFBD><CC97>p<EFBFBD><70><EFBFBD><EFBFBD><EFBFBD>ɂ‚<C982><C282>ẮA<CD81><41><EFBFBD>łł<C582><C582><EFBFBD> libpng 1.0.9beta1<EFBFBD><EFBFBD>
-<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̂Ƃ<EFBFBD><EFBFBD>܂<EFBFBD><EFBFBD>B<EFBFBD>ڂ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>́A<EFBFBD>t<EFBFBD><EFBFBD><EFBFBD><EFBFBD> README,LICENSE <20><><EFBFBD><EFBFBD><EFBFBD>ǂ݂<C782><DD82><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>B
-
-<EFBFBD><EFBFBD><EFBFBD>^<5E><><EFBFBD>e
-========
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- READMEJ.WCE - <20><><EFBFBD>̃t<CC83>@<40>C<EFBFBD><43>
- READMEE.WCE - <20><><EFBFBD>̃t<CC83>@<40>C<EFBFBD><43>(<28>p<EFBFBD><70>)
- png32ce.def - DLL<4C>쐬<EFBFBD>p <20><><EFBFBD>`<60>t<EFBFBD>@<40>C<EFBFBD><43>
-
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-<EFBFBD>ł̂ݎg<EFBFBD>p<EFBFBD>”\<5C>ł<EFBFBD><C582>B
-
-<EFBFBD>z<EFBFBD>z<EFBFBD><EFBFBD>
-======
-<EFBFBD>e<EFBFBD>j<EFBFBD>b<EFBFBD>N<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>J<EFBFBD><4A><EFBFBD><EFBFBD>
-<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>a<EFBFBD>Y
-adachi@tenik.co.jp

dll/wince/READMEZE.WCE

@@ -1,39 +0,0 @@
-zlib for WindowsCE Rel.1.0
-==========================
- (C) 1995-1998 Jean-loup Gailly and Mark Adler
- (C) 2000      Tenik Co.,Ltd.
-
- Porting for WindowsCE by Tenik Co.,Ltd.(Kazuo Adachi)
-
-
-Introduction
-============
-This is zlib 1.1.3 ported to WindowsCE 2.0 and 2.11.
-zlib 1.1.3 is a general purpose data compression library.
-See README, a document of original zlib 1.1.3.
-
-Copyright notice
-================
-This software is provided 'as-is', without any express or implied
-warranty.  In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-See README, a document of original zlib 1.1.3, for conditions of use and
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-
-Files
-=====
-
- READMEE.WCE - this file(in English)
- READMEJ.WCE - this file(in Japanese)
- zlibce.def  - module definition file to make DLLs
- zlibce.diff - patch file for source code
-
-Sample programs(minigzip.c and example.c) can build on WindowsCE 2.11.
-WindowsCE 2.0 and below is not support 'console' functions.
-
-Author
-======
-Tenik Co.,Ltd.
-Kazuo Adachi
-adachi@tenik.co.jp

dll/wince/READMEZJ.WCE

@@ -1,41 +0,0 @@
-zlib for WindowsCE Rel.1.0
-==========================
- (C) 1995-1998 Jean-loup Gailly and Mark Adler
- (C) 2000      Tenik Co.,Ltd.
-
- Porting for WindowsCE by Tenik Co.,Ltd.(Kazuo Adachi)
-
-
-<EFBFBD>͂<EFBFBD><EFBFBD>߂<EFBFBD>
-========
-zlib for WindowsCE<43>͔ėp<C497>̃f<CC83>[<5B>^<5E><><EFBFBD>k<EFBFBD><6B><EFBFBD>C<EFBFBD>u<EFBFBD><75><EFBFBD><EFBFBD> zlib<69><62> WindowsCE<43>łł<C582><C582>B
-zlib<EFBFBD>ɂ‚<EFBFBD><EFBFBD>Ă̏ڂ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>́A<EFBFBD>t<EFBFBD><EFBFBD><EFBFBD><EFBFBD> README <20><><EFBFBD><EFBFBD><EFBFBD>ǂ݂<C782><DD82><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>B
-
-<EFBFBD>g<EFBFBD>p<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-========
-<EFBFBD><EFBFBD><EFBFBD>̃\<5C>t<EFBFBD>g<EFBFBD>E<EFBFBD>F<EFBFBD>A<EFBFBD>͖<EFBFBD><CD96>ۏ؂ł<D882><C582>B<EFBFBD><42><EFBFBD>̃\<5C>t<EFBFBD>g<EFBFBD>E<EFBFBD>F<EFBFBD>A<EFBFBD><41><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŗ<EFBFBD><C597>p<EFBFBD>҂<EFBFBD><D282><EFBFBD><EFBFBD>邱<EFBFBD><E982B1>
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-======
-<EFBFBD>e<EFBFBD>j<EFBFBD>b<EFBFBD>N<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>J<EFBFBD><4A><EFBFBD><EFBFBD>
-<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>a<EFBFBD>Y
-adachi@tenik.co.jp

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-RSC=rc.exe
-# ADD BASE RSC /l 0x411 /r /d "ppc" /d "_ppc_" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "DEBUG"
-# ADD RSC /l 0x411 /r /d "ppc" /d "_ppc_" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "DEBUG"
-MTL=midl.exe
-# ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /o "NUL" /win32
-# ADD MTL /nologo /D "_DEBUG" /mktyplib203 /o "NUL" /win32
-BSC32=bscmake.exe
-# ADD BASE BSC32 /nologo
-# ADD BSC32 /nologo
-LINK32=link.exe
-# ADD BASE LINK32 commctrl.lib coredll.lib /nologo /debug /machine:PPC /nodefaultlib:"$(CENoDefaultLib)" /subsystem:$(CESubsystem) /STACK:65536,4096
-# SUBTRACT BASE LINK32 /pdb:none /nodefaultlib
-# ADD LINK32 commctrl.lib coredll.lib /nologo /debug /machine:PPC /nodefaultlib:"$(CENoDefaultLib)" /subsystem:$(CESubsystem) /STACK:65536,4096
-# SUBTRACT LINK32 /pdb:none /nodefaultlib
-
-!ENDIF 
-
-# Begin Target
-
-# Name "pngtest - Win32 (WCE MIPS) Release"
-# Name "pngtest - Win32 (WCE MIPS) Debug"
-# Name "pngtest - Win32 (WCE SH4) Release"
-# Name "pngtest - Win32 (WCE SH4) Debug"
-# Name "pngtest - Win32 (WCE SH3) Release"
-# Name "pngtest - Win32 (WCE SH3) Debug"
-# Name "pngtest - Win32 (WCE ARM) Release"
-# Name "pngtest - Win32 (WCE ARM) Debug"
-# Name "pngtest - Win32 (WCE MIPSFP) Release"
-# Name "pngtest - Win32 (WCE MIPSFP) Debug"
-# Name "pngtest - Win32 (WCE x86) Release"
-# Name "pngtest - Win32 (WCE x86) Debug"
-# Name "pngtest - Win32 (WCE x86em) Release"
-# Name "pngtest - Win32 (WCE x86em) Debug"
-# Name "pngtest - Win32 (WCE PPC) Release"
-# Name "pngtest - Win32 (WCE PPC) Debug"
-# Begin Group "Source Files"
-
-# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
-# Begin Source File
-
-SOURCE=..\pngtest.c
-
-!IF  "$(CFG)" == "pngtest - Win32 (WCE MIPS) Release"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE MIPS) Debug"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH4) Release"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH4) Debug"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH3) Release"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH3) Debug"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE ARM) Release"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE ARM) Debug"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE MIPSFP) Release"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE MIPSFP) Debug"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86) Release"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86) Debug"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86em) Release"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86em) Debug"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE PPC) Release"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE PPC) Debug"
-
-DEP_CPP_PNGTE=\
-	"..\..\..\zlib\zconf.h"\
-	"..\..\..\zlib\zlib.h"\
-	"..\..\png.h"\
-	"..\..\pngasmrd.h"\
-	"..\..\pngconf.h"\
-	
-NODEP_CPP_PNGTE=\
-	"..\..\alloc.h"\
-	
-
-!ENDIF 
-
-# End Source File
-# Begin Source File
-
-SOURCE=.\winmain.c
-
-!IF  "$(CFG)" == "pngtest - Win32 (WCE MIPS) Release"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE MIPS) Debug"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH4) Release"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH4) Debug"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH3) Release"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH3) Debug"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE ARM) Release"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE ARM) Debug"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE MIPSFP) Release"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE MIPSFP) Debug"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86) Release"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86) Debug"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86em) Release"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86em) Debug"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE PPC) Release"
-
-!ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE PPC) Debug"
-
-!ENDIF 
-
-# End Source File
-# End Group
-# Begin Group "Header Files"
-
-# PROP Default_Filter "h;hpp;hxx;hm;inl"
-# End Group
-# Begin Group "Resource Files"
-
-# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
-# End Group
-# End Target
-# End Project

dll/wince/winmain.c

@@ -1,86 +0,0 @@
-
-/* winmain.c - a simple entry point for WindowsCE
- *
- * Copyright (c) 2000 Tenik Co.,Ltd.
- */
-
-#include <windows.h>
-#include <tchar.h>
-
-extern int main(int argc, char *argv[]);
-
-int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPWSTR lpszCmdLine, int nCmdShow)
-{
-#define SIZE_ARGV   (32)
-
-    TCHAR path[MAX_PATH];
-    LPTSTR file;
-    char prog[MAX_PATH];
-    int argc;
-    char *argv[SIZE_ARGV];
-    int size;
-    char *buff;
-    char *argp;
-    char *args;
-    char quote;
-
-    // get program name
-    argc = 0;
-    GetModuleFileName(GetCurrentProcess(), path, MAX_PATH);
-    file = _tcsrchr(path, TEXT('\\'));
-    if (NULL == file) {
-        file = path;
-    }
-    else {
-        file++;
-    }
-    WideCharToMultiByte(CP_ACP, 0, file, -1, prog, MAX_PATH, NULL, NULL);
-    argv[argc++] = prog;
-
-    // analyze parameters
-    size = WideCharToMultiByte(CP_ACP, 0, lpszCmdLine, -1, NULL, 0, NULL, NULL);
-    buff = (char *)malloc(size);
-    size = WideCharToMultiByte(CP_ACP, 0, lpszCmdLine, -1, buff, size, NULL, NULL);
-    quote = 0x00;
-    args = argp = buff;
-    if (argp && *argp && size) {
-        argv[argc++] = args;
-        while (*argp) {
-            if (quote) {
-                if (*argp == quote) {
-                    argp++;
-                    if (*argp != quote) {
-                        quote = 0x00;
-                    }
-                    else {
-                        *args++ = *argp++;
-                    }
-                }
-                else {
-                    *args++ = *argp++;
-                }
-            }
-            else {
-                if (*argp == ' ') {
-                    *args++ = *argp++ = '\0';
-                    while (*argp && *argp == ' ') {
-                        argp++;
-                    }
-                    if (*argp && argc < SIZE_ARGV) {
-                        argv[argc++] = args;
-                    }
-                }
-                else {
-                    if (*argp == '\"') {
-                        quote = *argp++;
-                    }
-                    else {
-                        *args++ = *argp++;
-                    }
-                }
-            }
-        }
-    }
-    *args = '\0';
-    return main(argc, argv);
-}