[libpng10] Imported from libpng-1.0.54.tar
diff --git a/ANNOUNCE b/ANNOUNCE
index 4a35554..f310117 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.0.53 - February 25, 2010
+Libpng 1.0.54 - July 2, 2010
 
 This is a public release of libpng, intended for use in production codes.
 
@@ -8,55 +8,44 @@
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   libpng-1.0.53.tar.xz (LZMA-compressed, recommended)
-   libpng-1.0.53.tar.gz
-   libpng-1.0.53.tar.bz2
+   libpng-1.0.54.tar.xz (LZMA-compressed, recommended)
+   libpng-1.0.54.tar.gz
+   libpng-1.0.54.tar.bz2
 
 Source files with LF line endings (for Unix/Linux) without the
 "configure" script
 
-   libpng-1.0.53-no-config.tar.xz (LZMA-compressed, recommended)
-   libpng-1.0.53-no-config.tar.gz
-   libpng-1.0.53-no-config.tar.bz2
+   libpng-1.0.54-no-config.tar.xz (LZMA-compressed, recommended)
+   libpng-1.0.54-no-config.tar.gz
+   libpng-1.0.54-no-config.tar.bz2
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lpng1053.zip
-   lpng1053.7z
-   lpng1053.tar.bz2
+   lpng1054.zip
+   lpng1054.7z
+   lpng1054.tar.bz2
 
 Project files
 
-   libpng-1.0.53-project-netware.zip
-   libpng-1.0.53-project-wince.zip
+   libpng-1.0.54-project-netware.zip
+   libpng-1.0.54-project-wince.zip
 
 Other information:
 
-   libpng-1.0.53-README.txt
-   libpng-1.0.53-KNOWNBUGS.txt
-   libpng-1.0.53-LICENSE.txt
-   libpng-1.0.53-Y2K-compliance.txt
+   libpng-1.0.54-README.txt
+   libpng-1.0.54-KNOWNBUGS.txt
+   libpng-1.0.54-LICENSE.txt
+   libpng-1.0.54-Y2K-compliance.txt
 
-Changes since the last public release (1.0.52):
+Changes since the last public release (1.0.53):
 
-version 1.0.53 [February 25, 2010]
+version 1.0.54 [July 2, 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 two-pass png_decompress_chunk() algorithm from libpng-1.4.1
-  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.
-  Ported rewritten png_decompress_chunk() by John Bowler from libpng-1.4.1.
-  Define _ALL_SOURCE in configure.ac, makefile.aix, and CMakeLists.txt
-    when using AIX compiler.
-  Removed unused gzio.c from contrib/pngminim gather and makefile scripts
+  Rewrote png_process_IDAT_data to consistently treat extra data as warnings
+    and handle end conditions more cleanly.
+  Removed the now-redundant check for out-of-bounds new_row from example.c
+
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 
diff --git a/CHANGES b/CHANGES
index 84f4d88..f9c8d03 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2668,6 +2668,31 @@
 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().
+
+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.
+
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
diff --git a/INSTALL b/INSTALL
index c9f2300..644b27b 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 
-Installing libpng version 1.0.53 - February 25, 2010
+Installing libpng version 1.0.54 - July 2, 2010
 
 On Unix/Linux and similar systems, you can simply type
 
@@ -46,7 +46,7 @@
 correspond to the version of zlib that's installed.
 
 You can rename the directories that you downloaded (they
-might be called "libpng-1.0.53" or "libpng10" and "zlib-1.2.3"
+might be called "libpng-1.0.54" or "libpng10" and "zlib-1.2.3"
 or "zlib123") so that you have directories called "zlib" and "libpng".
 
 Your directory structure should look like this:
diff --git a/KNOWNBUG b/KNOWNBUG
index 3ddbbe3..e6f02ba 100644
--- a/KNOWNBUG
+++ b/KNOWNBUG
@@ -1,5 +1,5 @@
 
-Known bugs in libpng version 1.0.53
+Known bugs in libpng version 1.0.54
 
 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
diff --git a/LICENSE b/LICENSE
index 01f9ce5..1eee492 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.0.53, February 25, 2010, are
+libpng versions 1.2.6, August 15, 2004, through 1.0.54, July 2, 2010, 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
@@ -108,4 +108,4 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-February 25, 2010
+July 2, 2010
diff --git a/Makefile.am b/Makefile.am
index 5e3984b..e135d46 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -86,7 +86,7 @@
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.0.53.txt pngvcrd.c
+	example.c libpng-1.0.54.txt pngvcrd.c
 
 CLEANFILES= pngout.png libpng10.pc libpng10-config libpng.vers \
 libpng.sym
diff --git a/Makefile.in b/Makefile.in
index 8f5869a..df3421f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -351,7 +351,7 @@
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.0.53.txt pngvcrd.c
+	example.c libpng-1.0.54.txt pngvcrd.c
 
 CLEANFILES = pngout.png libpng10.pc libpng10-config libpng.vers \
 libpng.sym
diff --git a/README b/README
index 398c954..dea2e3f 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.0.53 - February 25, 2010 (shared library 10.0)
+README for libpng version 1.0.54 - July 2, 2010 (shared library 10.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
@@ -199,11 +199,11 @@
        makefile.std     =>  Generic UNIX makefile (cc, creates static
                             libpng.a)
        makefile.elf     =>  Linux/ELF gcc makefile symbol versioning,
-                            creates libpng10.so.0.1.0.53)
+                            creates libpng10.so.0.1.0.54)
        makefile.linux   =>  Linux/ELF makefile (gcc, creates
-                            libpng10.so.0.1.0.53)
+                            libpng10.so.0.1.0.54)
        makefile.gcmmx   =>  Linux/ELF makefile (gcc, creates
-                            libpng10.so.0.1.0.53, previously
+                            libpng10.so.0.1.0.54, previously
                             used assembler code tuned for Intel MMX
                             platform)
        makefile.gcc     =>  Generic makefile (gcc, creates static
@@ -228,12 +228,12 @@
        makefile.openbsd =>  OpenBSD makefile
        makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
        makefile.sggcc   =>  Silicon Graphics
-                            (gcc, creates libpng10.so.0.1.0.53)
+                            (gcc, creates libpng10.so.0.1.0.54)
        makefile.sunos   =>  Sun makefile
        makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng10.so.0.1.0.53)
+                            (gcc, creates libpng10.so.0.1.0.54)
        makefile.so9     =>  Solaris 9 makefile
-                            (gcc, creates libpng10.so.0.1.0.53)
+                            (gcc, creates libpng10.so.0.1.0.54)
        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
diff --git a/Y2KINFO b/Y2KINFO
index 8c4cdee..b4d3c6b 100644
--- a/Y2KINFO
+++ b/Y2KINFO
@@ -1,13 +1,13 @@
    Y2K compliance in libpng:
    =========================
 
-      February 25, 2010
+      July 2, 2010
 
       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 1.0.53 are Y2K compliant.  It is my belief that earlier
+      upward through 1.0.54 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
diff --git a/configure b/configure
index bf75b1e..0452647 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.65 for libpng 1.0.53.
+# Generated by GNU Autoconf 2.65 for libpng 1.0.54.
 #
 # Report bugs to <png-mng-implement@lists.sourceforge.net>.
 #
@@ -701,8 +701,8 @@
 # Identity of this package.
 PACKAGE_NAME='libpng'
 PACKAGE_TARNAME='libpng'
-PACKAGE_VERSION='1.0.53'
-PACKAGE_STRING='libpng 1.0.53'
+PACKAGE_VERSION='1.0.54'
+PACKAGE_STRING='libpng 1.0.54'
 PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
 PACKAGE_URL=''
 
@@ -1435,7 +1435,7 @@
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures libpng 1.0.53 to adapt to many kinds of systems.
+\`configure' configures libpng 1.0.54 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1505,7 +1505,7 @@
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of libpng 1.0.53:";;
+     short | recursive ) echo "Configuration of libpng 1.0.54:";;
    esac
   cat <<\_ACEOF
 
@@ -1612,7 +1612,7 @@
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-libpng configure 1.0.53
+libpng configure 1.0.54
 generated by GNU Autoconf 2.65
 
 Copyright (C) 2009 Free Software Foundation, Inc.
@@ -2037,7 +2037,7 @@
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by libpng $as_me 1.0.53, which was
+It was created by libpng $as_me 1.0.54, which was
 generated by GNU Autoconf 2.65.  Invocation command line was
 
   $ $0 $@
@@ -2845,7 +2845,7 @@
 
 # Define the identity of the package.
  PACKAGE='libpng'
- VERSION='1.0.53'
+ VERSION='1.0.54'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -2909,10 +2909,10 @@
 
 
 
-PNGLIB_VERSION=1.0.53
+PNGLIB_VERSION=1.0.54
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=0
-PNGLIB_RELEASE=53
+PNGLIB_RELEASE=54
 
 
 
@@ -12079,7 +12079,7 @@
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by libpng $as_me 1.0.53, which was
+This file was extended by libpng $as_me 1.0.54, which was
 generated by GNU Autoconf 2.65.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -12145,7 +12145,7 @@
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-libpng config.status 1.0.53
+libpng config.status 1.0.54
 configured by $0, generated by GNU Autoconf 2.65,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 735021b..8d6b865 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,15 +18,15 @@
 
 dnl Version number stuff here:
 
-AC_INIT([libpng], [1.0.53], [png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng], [1.0.54], [png-mng-implement@lists.sourceforge.net])
 AM_INIT_AUTOMAKE
 dnl stop configure from automagically running automake
 AM_MAINTAINER_MODE
 
-PNGLIB_VERSION=1.0.53
+PNGLIB_VERSION=1.0.54
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=0
-PNGLIB_RELEASE=53
+PNGLIB_RELEASE=54
 
 dnl End of version number stuff
 
diff --git a/example.c b/example.c
index 108a5f1..49b8724 100644
--- a/example.c
+++ b/example.c
@@ -509,20 +509,17 @@
     * shown below:
     */
 
-   /* Check if row_num is in bounds. */
-   if ((row_num >= 0) && (row_num < height))
-   {
-     /* Get pointer to corresponding row in our
-      * PNG read buffer.
-      */
-     png_bytep old_row = ((png_bytep *)our_data)[row_num];
+   /* Get pointer to corresponding row in our
+    * PNG read buffer.
+    */
+   png_bytep old_row = ((png_bytep *)our_data)[row_num];
 
-     /* If both rows are allocated then copy the new row
-      * data to the corresponding row data.
-      */
-     if ((old_row != NULL) && (new_row != NULL))
-     png_progressive_combine_row(png_ptr, old_row, new_row);
-   }
+   /* If both rows are allocated then copy the new row
+    * data to the corresponding row data.
+    */
+   if ((old_row != NULL) && (new_row != NULL))
+   png_progressive_combine_row(png_ptr, old_row, new_row);
+
    /*
     * The rows and passes are called in order, so you don't really
     * need the row_num and pass, but I'm supplying them because it
diff --git a/libpng-1.0.53.txt b/libpng-1.0.54.txt
similarity index 99%
rename from libpng-1.0.53.txt
rename to libpng-1.0.54.txt
index 96b662a..ab1a834 100644
--- a/libpng-1.0.53.txt
+++ b/libpng-1.0.54.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.0.53 - February 25, 2010
+ libpng version 1.0.54 - July 2, 2010
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.0.53 - February 25, 2010
+ libpng versions 0.97, January 1998, through 1.0.54 - July 2, 2010
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
 
@@ -878,7 +878,7 @@
 As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
 added.  It expands the sample depth without changing tRNS to alpha.
 
-As of libpng version 1.0.53, not all possible expansions are supported.
+As of libpng version 1.0.54, not all possible expansions are supported.
 
 In the following table, the 01 means grayscale with depth<8, 31 means
 indexed with depth<8, other numerals represent the color type, "T" means
@@ -3076,13 +3076,13 @@
 
 XIII. Y2K Compliance in libpng
 
-February 25, 2010
+July 2, 2010
 
 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 1.0.53 are Y2K compliant.  It is my belief that earlier
+upward through 1.0.54 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.
 
 Libpng only has three year fields.  One is a 2-byte unsigned integer that
diff --git a/libpng.3 b/libpng.3
index 767d787..96f1c96 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "February 25, 2010"
+.TH LIBPNG 3 "July 2, 2010"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.0.53
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.54
 .SH SYNOPSIS
 \fI\fB
 
@@ -821,7 +821,7 @@
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.0.53 - February 25, 2010
+ libpng version 1.0.54 - July 2, 2010
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -832,7 +832,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.0.53 - February 25, 2010
+ libpng versions 0.97, January 1998, through 1.0.54 - July 2, 2010
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
 
@@ -1699,7 +1699,7 @@
 As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
 added.  It expands the sample depth without changing tRNS to alpha.
 
-As of libpng version 1.0.53, not all possible expansions are supported.
+As of libpng version 1.0.54, not all possible expansions are supported.
 
 In the following table, the 01 means grayscale with depth<8, 31 means
 indexed with depth<8, other numerals represent the color type, "T" means
@@ -3897,13 +3897,13 @@
 
 .SH XIII. Y2K Compliance in libpng
 
-February 25, 2010
+July 2, 2010
 
 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 1.0.53 are Y2K compliant.  It is my belief that earlier
+upward through 1.0.54 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.
 
 Libpng only has three year fields.  One is a 2-byte unsigned integer that
@@ -4201,6 +4201,9 @@
  1.2.43rc01-02       13    10243  12.so.0.43[.0]
  1.0.53              10    10053  10.so.0.53[.0]
  1.2.43              13    10243  12.so.0.43[.0]
+ 1.2.44beta01-03     13    10244  12.so.0.44[.0]
+ 1.2.44rc01-03       13    10244  12.so.0.44[.0]
+ 1.2.44              13    10244  12.so.0.44[.0]
 
 Henceforth the source version will match the shared-library minor
 and patch numbers; the shared-library major version number will be
@@ -4256,7 +4259,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.0.53 - February 25, 2010:
+Libpng version 1.0.54 - July 2, 2010:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -4279,7 +4282,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.0.53, February 25, 2010, are
+libpng versions 1.2.6, August 15, 2004, through 1.0.54, July 2, 2010, are
 Copyright (c) 2004,2006-2008 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
@@ -4378,7 +4381,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-February 25, 2010
+July 2, 2010
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index 4d35c8b..c2eb964 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
-.TH LIBPNGPF 3 "February 25, 2010"
+.TH LIBPNGPF 3 "July 2, 2010"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.0.53
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.54
 (private functions)
 .SH SYNOPSIS
 \fB#include <png.h>\fP
diff --git a/png.5 b/png.5
index c175165..c131fde 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "February 25, 2010"
+.TH PNG 5 "July 2, 2010"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index 718b868..c94315a 100644
--- a/png.c
+++ b/png.c
@@ -17,7 +17,7 @@
 #include "png.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_0_53 Your_png_h_is_not_version_1_0_53;
+typedef version_1_0_54 Your_png_h_is_not_version_1_0_54;
 
 /* Version information for C files.  This had better match the version
  * string defined in png.h.
@@ -724,13 +724,13 @@
 #else
 #ifdef __STDC__
    return ((png_charp) PNG_STRING_NEWLINE \
-     "libpng version 1.0.53 - February 25, 2010" PNG_STRING_NEWLINE \
+     "libpng version 1.0.54 - July 2, 2010" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2010 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
      "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
      "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
      PNG_STRING_NEWLINE);
 #else
-      return ((png_charp) "libpng version 1.0.53 - February 25, 2010\
+      return ((png_charp) "libpng version 1.0.54 - July 2, 2010\
       Copyright (c) 1998-2010 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");
diff --git a/png.h b/png.h
index 125ca9f..7917c13 100644
--- a/png.h
+++ b/png.h
@@ -1,6 +1,6 @@
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.0.53 - February 25, 2010
+ * libpng version 1.0.54 - July 2, 2010
  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -10,7 +10,7 @@
  * Authors and maintainers:
  *  libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
  *  libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- *  libpng versions 0.97, January 1998, through 1.0.53 - February 25, 2010: Glenn
+ *  libpng versions 0.97, January 1998, through 1.0.54 - July 2, 2010: Glenn
  *  See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -259,6 +259,9 @@
  *    1.2.43rc01-02           13    10243  12.so.0.43[.0]
  *    1.0.53                  10    10053  10.so.0.53[.0]
  *    1.2.43                  13    10243  12.so.0.43[.0]
+ *    1.2.44beta01-03         13    10244  12.so.0.44[.0]
+ *    1.2.44rc01-03           13    10244  12.so.0.44[.0]
+ *    1.2.44                  13    10244  12.so.0.44[.0]
  *
  *    Henceforth the source version will match the shared-library major
  *    and minor numbers; the shared-library major version number will be
@@ -290,7 +293,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.0.53, February 25, 2010, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.0.54, July 2, 2010, are
  * Copyright (c) 2004, 2006-2010 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:
@@ -402,13 +405,13 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    February 25, 2010
+ *    July 2, 2010
  *
  *    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 1.0.53 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.0.54 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
@@ -464,9 +467,9 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.0.53"
+#define PNG_LIBPNG_VER_STRING "1.0.54"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.0.53 - February 25, 2010\n"
+   " libpng version 1.0.54 - July 2, 2010\n"
 
 #define PNG_LIBPNG_VER_SONUM   0
 #define PNG_LIBPNG_VER_DLLNUM  10
@@ -474,7 +477,7 @@
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   0
-#define PNG_LIBPNG_VER_RELEASE 53
+#define PNG_LIBPNG_VER_RELEASE 54
 /* This should match the numeric part of the final component of
  * PNG_LIBPNG_VER_STRING, omitting any leading zero:
  */
@@ -504,7 +507,7 @@
  * version 1.0.0 was mis-numbered 100 instead of 10000).  From
  * version 1.0.1 it's    xxyyzz, where x=major, y=minor, z=release
  */
-#define PNG_LIBPNG_VER 10053 /* 1.0.53 */
+#define PNG_LIBPNG_VER 10054 /* 1.0.54 */
 
 #ifndef PNG_VERSION_INFO_ONLY
 /* Include the compression library's header */
@@ -1544,7 +1547,7 @@
 /* This triggers a compiler error in png.c, if png.c and png.h
  * do not agree upon the version number.
  */
-typedef png_structp version_1_0_53;
+typedef png_structp version_1_0_54;
 
 typedef png_struct FAR * FAR * png_structpp;
 
diff --git a/pngconf.h b/pngconf.h
index deed408..0b119a7 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.0.53 - February 25, 2010
+ * libpng version 1.0.54 - July 2, 2010
  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
diff --git a/pngmem.c b/pngmem.c
index 91f2765..a18719b 100644
--- a/pngmem.c
+++ b/pngmem.c
@@ -442,7 +442,7 @@
  * have the ability to do that.
  */
 
-png_voidp PNGAPI
+png_voidp /* PRIVATE */
 png_calloc(png_structp png_ptr, png_uint_32 size)
 {
    png_voidp ret;
diff --git a/pngpread.c b/pngpread.c
index 52f41a2..d066944 100644
--- a/pngpread.c
+++ b/pngpread.c
@@ -1,7 +1,7 @@
 
 /* pngpread.c - read a png file in push mode
  *
- * Last changed in libpng 1.2.43 [February 25, 2010]
+ * Last changed in libpng 1.2.44 [June 26, 2010]
  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -783,8 +783,7 @@
 
       png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size);
 
-      if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED))
-         png_process_IDAT_data(png_ptr, png_ptr->save_buffer_ptr, save_size);
+      png_process_IDAT_data(png_ptr, png_ptr->save_buffer_ptr, save_size);
 
       png_ptr->idat_size -= save_size;
       png_ptr->buffer_size -= save_size;
@@ -807,8 +806,8 @@
          save_size = png_ptr->current_buffer_size;
 
       png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size);
-      if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED))
-         png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size);
+
+      png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size);
 
       png_ptr->idat_size -= save_size;
       png_ptr->buffer_size -= save_size;
@@ -833,62 +832,101 @@
 png_process_IDAT_data(png_structp png_ptr, png_bytep buffer,
    png_size_t buffer_length)
 {
-   int ret;
+   /* The caller checks for a non-zero buffer length. */
+   if (!(buffer_length > 0) || buffer == NULL)
+      png_error(png_ptr, "No IDAT data (internal error)");
 
-   if ((png_ptr->flags & PNG_FLAG_ZLIB_FINISHED) && buffer_length)
-      png_error(png_ptr, "Extra compression data");
-
+   /* This routine must process all the data it has been given
+    * before returning, calling the row callback as required to
+    * handle the uncompressed results.
+    */
    png_ptr->zstream.next_in = buffer;
    png_ptr->zstream.avail_in = (uInt)buffer_length;
-   for (;;)
+
+   /* Keep going until the decompressed data is all processed
+    * or the stream marked as finished.
+    */
+   while (png_ptr->zstream.avail_in > 0 &&
+	  !(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED))
    {
-      ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH);
-      if (ret != Z_OK)
+      int ret;
+
+      /* We have data for zlib, but we must check that zlib
+       * has somewhere to put the results.  It doesn't matter
+       * if we don't expect any results -- it may be the input
+       * data is just the LZ end code.
+       */
+      if (!(png_ptr->zstream.avail_out > 0))
       {
-         if (ret == Z_STREAM_END)
-         {
-            if (png_ptr->zstream.avail_in)
-               png_error(png_ptr, "Extra compressed data");
-
-            if (!(png_ptr->zstream.avail_out))
-            {
-               png_push_process_row(png_ptr);
-            }
-
-            png_ptr->mode |= PNG_AFTER_IDAT;
-            png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
-            break;
-         }
-         else if (ret == Z_BUF_ERROR)
-            break;
-
-         else
-            png_error(png_ptr, "Decompression Error");
-      }
-      if (!(png_ptr->zstream.avail_out))
-      {
-         if ((
-#ifdef PNG_READ_INTERLACING_SUPPORTED
-             png_ptr->interlaced && png_ptr->pass > 6) ||
-             (!png_ptr->interlaced &&
-#endif
-             png_ptr->row_number == png_ptr->num_rows))
-         {
-           if (png_ptr->zstream.avail_in)
-             png_warning(png_ptr, "Too much data in IDAT chunks");
-           png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
-           break;
-         }
-         png_push_process_row(png_ptr);
          png_ptr->zstream.avail_out =
              (uInt) PNG_ROWBYTES(png_ptr->pixel_depth,
              png_ptr->iwidth) + 1;
          png_ptr->zstream.next_out = png_ptr->row_buf;
       }
 
-      else
-         break;
+      /* Using Z_SYNC_FLUSH here means that an unterminated
+       * LZ stream can still be handled (a stream with a missing
+       * end code), otherwise (Z_NO_FLUSH) a future zlib
+       * implementation might defer output and, therefore,
+       * change the current behavior.  (See comments in inflate.c
+       * for why this doesn't happen at present with zlib 1.2.5.)
+       */
+      ret = inflate(&png_ptr->zstream, Z_SYNC_FLUSH);
+
+      /* Check for any failure before proceeding. */
+      if (ret != Z_OK && ret != Z_STREAM_END)
+      {
+	 /* Terminate the decompression. */
+	 png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
+
+         /* This may be a truncated stream (missing or
+	  * damaged end code).  Treat that as a warning.
+	  */
+         if (png_ptr->row_number >= png_ptr->num_rows ||
+	     png_ptr->pass > 6)
+	    png_warning(png_ptr, "Truncated compressed data in IDAT");
+	 else
+	    png_error(png_ptr, "Decompression error in IDAT");
+
+	 /* Skip the check on unprocessed input */
+         return;
+      }
+
+      /* Did inflate output any data? */
+      if (png_ptr->zstream.next_out != png_ptr->row_buf)
+      {
+	 /* Is this unexpected data after the last row?
+	  * If it is, artificially terminate the LZ output
+	  * here.
+	  */
+         if (png_ptr->row_number >= png_ptr->num_rows ||
+	     png_ptr->pass > 6)
+         {
+	    /* Extra data. */
+	    png_warning(png_ptr, "Extra compressed data in IDAT");
+            png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
+	    /* Do no more processing; skip the unprocessed
+	     * input check below.
+	     */
+            return;
+	 }
+
+	 /* Do we have a complete row? */
+	 if (png_ptr->zstream.avail_out == 0)
+	    png_push_process_row(png_ptr);
+      }
+
+      /* And check for the end of the stream. */
+      if (ret == Z_STREAM_END)
+	 png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
    }
+
+   /* All the data should have been processed, if anything
+    * is left at this point we have bytes of IDAT data
+    * after the zlib end code.
+    */
+   if (png_ptr->zstream.avail_in > 0)
+      png_warning(png_ptr, "Extra compression data");
 }
 
 void /* PRIVATE */
@@ -904,8 +942,8 @@
        png_ptr->row_info.width);
 
    png_read_filter_row(png_ptr, &(png_ptr->row_info),
-      png_ptr->row_buf + 1, png_ptr->prev_row + 1,
-      (int)(png_ptr->row_buf[0]));
+       png_ptr->row_buf + 1, png_ptr->prev_row + 1,
+       (int)(png_ptr->row_buf[0]));
 
    png_memcpy_check(png_ptr, png_ptr->prev_row, png_ptr->row_buf,
       png_ptr->rowbytes + 1);
@@ -920,7 +958,7 @@
       if (png_ptr->pass < 6)
 /*       old interface (pre-1.0.9):
          png_do_read_interlace(&(png_ptr->row_info),
-            png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations);
+             png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations);
  */
          png_do_read_interlace(png_ptr);
 
@@ -955,7 +993,7 @@
 
             if (png_ptr->pass == 6 && png_ptr->height <= 4)
             {
-                png_push_have_row(png_ptr, png_bytep_NULL);
+                  png_push_have_row(png_ptr, png_bytep_NULL);
                 png_read_push_finish_row(png_ptr);
             }
 
@@ -995,7 +1033,7 @@
 
             for (i = 0; i < 4 && png_ptr->pass == 2; i++)
             {
-               png_push_have_row(png_ptr, png_bytep_NULL);
+                  png_push_have_row(png_ptr, png_bytep_NULL);
                png_read_push_finish_row(png_ptr);
             }
 
@@ -1045,13 +1083,13 @@
 
             for (i = 0; i < 2 && png_ptr->pass == 4; i++)
             {
-               png_push_have_row(png_ptr, png_bytep_NULL);
+                  png_push_have_row(png_ptr, png_bytep_NULL);
                png_read_push_finish_row(png_ptr);
             }
 
             if (png_ptr->pass == 6) /* Pass 5 might be empty */
             {
-               png_push_have_row(png_ptr, png_bytep_NULL);
+                  png_push_have_row(png_ptr, png_bytep_NULL);
                png_read_push_finish_row(png_ptr);
             }
 
@@ -1070,7 +1108,7 @@
 
             if (png_ptr->pass == 6) /* Skip top generated row */
             {
-               png_push_have_row(png_ptr, png_bytep_NULL);
+                  png_push_have_row(png_ptr, png_bytep_NULL);
                png_read_push_finish_row(png_ptr);
             }
 
@@ -1084,7 +1122,7 @@
             if (png_ptr->pass != 6)
                break;
 
-            png_push_have_row(png_ptr, png_bytep_NULL);
+                  png_push_have_row(png_ptr, png_bytep_NULL);
             png_read_push_finish_row(png_ptr);
          }
       }
diff --git a/pngread.c b/pngread.c
index bb62efb..6207624 100644
--- a/pngread.c
+++ b/pngread.c
@@ -1,8 +1,8 @@
 
 /* pngread.c - read a PNG file
  *
- * Last changed in libpng 1.2.43 [February 25, 2010]
- * Copyright (c) 1998-2009 Glenn Randers-Pehrson
+ * Last changed in libpng 1.2.44 [June 26, 2010]
+ * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  *
diff --git a/pngrutil.c b/pngrutil.c
index 9fd48be..1e2db31 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,8 +1,8 @@
 
 /* pngrutil.c - utilities to read a PNG file
  *
- * Last changed in libpng 1.2.43 [February 25, 2010]
- * Copyright (c) 1998-2009 Glenn Randers-Pehrson
+ * Last changed in libpng 1.2.44 [June 26, 2010]
+ * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  *
@@ -220,7 +220,7 @@
     defined(PNG_READ_iCCP_SUPPORTED)
 static png_size_t
 png_inflate(png_structp png_ptr, const png_byte *data, png_size_t size,
-	png_bytep output, png_size_t output_size)
+        png_bytep output, png_size_t output_size)
 {
    png_size_t count = 0;
 
@@ -246,11 +246,11 @@
       if ((ret == Z_OK || ret == Z_STREAM_END) && avail > 0)
       {
          if (output != 0 && output_size > count)
-	 {
-	    int copy = output_size - count;
-	    if (avail < copy) copy = avail;
-	    png_memcpy(output + count, png_ptr->zbuf, copy);
-	 }
+         {
+            int copy = output_size - count;
+            if (avail < copy) copy = avail;
+            png_memcpy(output + count, png_ptr->zbuf, copy);
+         }
          count += avail;
       }
 
@@ -271,31 +271,33 @@
        * buffer if available.
        */
       {
-         char *msg, umsg[52];
-	 if (png_ptr->zstream.msg != 0)
-	    msg = png_ptr->zstream.msg;
-	 else
-	 {
+         PNG_CONST char *msg;
+         if (png_ptr->zstream.msg != 0)
+            msg = png_ptr->zstream.msg;
+         else
+         {
 #if defined(PNG_STDIO_SUPPORTED) && !defined(_WIN32_WCE)
-	    switch (ret)
-	    {
-	 case Z_BUF_ERROR:
-	    msg = "Buffer error in compressed datastream in %s chunk";
-	    break;
-	 case Z_DATA_ERROR:
-	    msg = "Data error in compressed datastream in %s chunk";
-	    break;
-	 default:
-	    msg = "Incomplete compressed datastream in %s chunk";
-	    break;
-	    }
+            char umsg[52];
 
-	    png_snprintf(umsg, sizeof umsg, msg, png_ptr->chunk_name);
-	    msg = umsg;
+            switch (ret)
+            {
+               case Z_BUF_ERROR:
+                  msg = "Buffer error in compressed datastream in %s chunk";
+                  break;
+               case Z_DATA_ERROR:
+                  msg = "Data error in compressed datastream in %s chunk";
+                  break;
+               default:
+                  msg = "Incomplete compressed datastream in %s chunk";
+                  break;
+            }
+
+            png_snprintf(umsg, sizeof umsg, msg, png_ptr->chunk_name);
+            msg = umsg;
 #else
-	    msg = "Damaged compressed datastream in chunk other than IDAT";
+            msg = "Damaged compressed datastream in chunk other than IDAT";
 #endif
-	 }
+         }
 
          png_warning(png_ptr, msg);
       }
@@ -330,9 +332,9 @@
    else if (comp_type == PNG_COMPRESSION_TYPE_BASE)
    {
       png_size_t expanded_size = png_inflate(png_ptr,
-		(png_bytep)(png_ptr->chunkdata + prefix_size),
+                (png_bytep)(png_ptr->chunkdata + prefix_size),
                 chunklength - prefix_size,
-		0/*output*/, 0/*output size*/);
+                0/*output*/, 0/*output size*/);
 
       /* Now check the limits on this chunk - if the limit fails the
        * compressed data will be removed, the prefix will remain.
@@ -341,8 +343,10 @@
       if (png_ptr->user_chunk_malloc_max &&
           (prefix_size + expanded_size >= png_ptr->user_chunk_malloc_max - 1))
 #else
+#  ifdef PNG_USER_CHUNK_MALLOC_MAX
       if ((PNG_USER_CHUNK_MALLOC_MAX > 0) &&
           prefix_size + expanded_size >= PNG_USER_CHUNK_MALLOC_MAX - 1)
+#  endif
 #endif
          png_warning(png_ptr, "Exceeded size limit while expanding chunk");
 
@@ -351,44 +355,49 @@
        * and we have nothing to do - the code will exit through the
        * error case below.
        */
-      else if (expanded_size > 0)
+#if defined(PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED) || \
+    defined(PNG_USER_CHUNK_MALLOC_MAX)
+      else
+#endif
+      if (expanded_size > 0)
       {
          /* Success (maybe) - really uncompress the chunk. */
-	 png_size_t new_size = 0;
-	 png_charp text = png_malloc_warn(png_ptr,
-			prefix_size + expanded_size + 1);
+         png_size_t new_size = 0;
+         png_charp text = png_malloc_warn(png_ptr,
+                        prefix_size + expanded_size + 1);
 
          if (text != NULL)
          {
-	    png_memcpy(text, png_ptr->chunkdata, prefix_size);
-	    new_size = png_inflate(png_ptr,
+            png_memcpy(text, png_ptr->chunkdata, prefix_size);
+            new_size = png_inflate(png_ptr,
                 (png_bytep)(png_ptr->chunkdata + prefix_size),
-		chunklength - prefix_size,
+                chunklength - prefix_size,
                 (png_bytep)(text + prefix_size), expanded_size);
-	    text[prefix_size + expanded_size] = 0; /* just in case */
+            text[prefix_size + expanded_size] = 0; /* just in case */
 
-	    if (new_size == expanded_size)
-	    {
-	       png_free(png_ptr, png_ptr->chunkdata);
-	       png_ptr->chunkdata = text;
-	       *newlength = prefix_size + expanded_size;
-	       return; /* The success return! */
-	    }
-      
-	    png_warning(png_ptr, "png_inflate logic error");
-	    png_free(png_ptr, text);
-	 }
-	 else
+            if (new_size == expanded_size)
+            {
+               png_free(png_ptr, png_ptr->chunkdata);
+               png_ptr->chunkdata = text;
+               *newlength = prefix_size + expanded_size;
+               return; /* The success return! */
+            }
+
+            png_warning(png_ptr, "png_inflate logic error");
+            png_free(png_ptr, text);
+         }
+         else
           png_warning(png_ptr, "Not enough memory to decompress chunk.");
       }
    }
 
    else /* if (comp_type != PNG_COMPRESSION_TYPE_BASE) */
    {
+#if defined(PNG_STDIO_SUPPORTED) && !defined(_WIN32_WCE)
       char umsg[50];
 
-#if defined(PNG_STDIO_SUPPORTED) && !defined(_WIN32_WCE)
-      png_snprintf(umsg, sizeof umsg, "Unknown zTXt compression type %d", comp_type);
+      png_snprintf(umsg, sizeof umsg, "Unknown zTXt compression type %d",
+          comp_type);
       png_warning(png_ptr, umsg);
 #else
       png_warning(png_ptr, "Unknown zTXt compression type");
@@ -405,13 +414,13 @@
       png_charp text = png_malloc_warn(png_ptr, prefix_size + 1);
       if (text != NULL)
       {
-	 if (prefix_size > 0)
+         if (prefix_size > 0)
             png_memcpy(text, png_ptr->chunkdata, prefix_size);
-	 png_free(png_ptr, png_ptr->chunkdata);
-	 png_ptr->chunkdata = text;
+         png_free(png_ptr, png_ptr->chunkdata);
+         png_ptr->chunkdata = text;
 
-	 /* This is an extra zero in the 'uncompressed' part. */
-	 *(png_ptr->chunkdata + prefix_size) = 0x00;
+         /* This is an extra zero in the 'uncompressed' part. */
+         *(png_ptr->chunkdata + prefix_size) = 0x00;
       }
       /* Ignore a malloc error here - it is safe. */
    }
@@ -907,9 +916,11 @@
                green_x, green_y, blue_x, blue_y);
 #else
             fprintf(stderr, "wx=%ld, wy=%ld, rx=%ld, ry=%ld\n",
-               int_x_white, int_y_white, int_x_red, int_y_red);
+               (long)int_x_white, (long)int_y_white,
+               (long)int_x_red, (long)int_y_red);
             fprintf(stderr, "gx=%ld, gy=%ld, bx=%ld, by=%ld\n",
-               int_x_green, int_y_green, int_x_blue, int_y_blue);
+               (long)int_x_green, (long)int_y_green,
+               (long)int_x_blue, (long)int_y_blue);
 #endif
 #endif /* PNG_CONSOLE_IO_SUPPORTED */
          }
@@ -1807,6 +1818,7 @@
    if (png_ptr->chunkdata == NULL)
    {
       png_warning(png_ptr, "Out of memory while processing sCAL chunk");
+      png_crc_finish(png_ptr, length);
       return;
    }
    slength = (png_size_t)length;
@@ -1828,6 +1840,8 @@
    if (*vp)
    {
       png_warning(png_ptr, "malformed width string in sCAL chunk");
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
       return;
    }
 #else
@@ -1836,6 +1850,8 @@
    if (swidth == NULL)
    {
       png_warning(png_ptr, "Out of memory while processing sCAL chunk width");
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
       return;
    }
    png_memcpy(swidth, ep, (png_size_t)png_strlen(ep));
@@ -1849,8 +1865,7 @@
    if (png_ptr->chunkdata + slength < ep)
    {
       png_warning(png_ptr, "Truncated sCAL chunk");
-#if defined(PNG_FIXED_POINT_SUPPORTED) && \
-    !defined(PNG_FLOATING_POINT_SUPPORTED)
+#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED)
       png_free(png_ptr, swidth);
 #endif
       png_free(png_ptr, png_ptr->chunkdata);
@@ -1863,6 +1878,11 @@
    if (*vp)
    {
       png_warning(png_ptr, "malformed height string in sCAL chunk");
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
+#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED)
+      png_free(png_ptr, swidth);
+#endif
       return;
    }
 #else
@@ -1871,6 +1891,11 @@
    if (sheight == NULL)
    {
       png_warning(png_ptr, "Out of memory while processing sCAL chunk height");
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
+#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED)
+      png_free(png_ptr, swidth);
+#endif
       return;
    }
    png_memcpy(sheight, ep, (png_size_t)png_strlen(ep));
diff --git a/pngtest.c b/pngtest.c
index f40ae8b..e494730 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1702,4 +1702,4 @@
 }
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_0_53 your_png_h_is_not_version_1_0_53;
+typedef version_1_0_54 your_png_h_is_not_version_1_0_54;
diff --git a/pngwio.c b/pngwio.c
index 5a4d04a..44e5ea9 100644
--- a/pngwio.c
+++ b/pngwio.c
@@ -174,7 +174,7 @@
  *                 arguments a pointer to a png_struct.  After a call to
  *                 the flush function, there should be no data in any buffers
  *                 or pending transmission.  If the output method doesn't do
- *                 any buffering of ouput, a function prototype must still be
+ *                 any buffering of output, a function prototype must still be
  *                 supplied although it doesn't have to do anything.  If
  *                 PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile
  *                 time, output_flush_fn will be ignored, although it must be
diff --git a/projects/wince.txt b/projects/wince.txt
index 87f5688..6927096 100644
--- a/projects/wince.txt
+++ b/projects/wince.txt
@@ -1,6 +1,6 @@
 A set of project files is available for WinCE.  Get
-libpng-1.0.53-project-wince.zip from a libpng distribution
+libpng-1.0.54-project-wince.zip from a libpng distribution
 site such as http://libpng.sourceforge.net/index.html
 
 Put the zip file in this directory (projects) and then run
-"unzip -a libpng-1.0.53-project-wince.zip"
+"unzip -a libpng-1.0.54-project-wince.zip"
diff --git a/scripts/README.txt b/scripts/README.txt
index 8b52f58..3540252 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,8 +1,8 @@
 
-Makefiles for  libpng version 1.0.53 - February 25, 2010
+Makefiles for  libpng version 1.0.54 - July 2, 2010
 
  makefile.linux    =>  Linux/ELF makefile
-                       (gcc, creates libpng10.so.0.1.0.53)
+                       (gcc, creates libpng10.so.0.1.0.54)
  makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
  makefile.knr      =>  Archaic UNIX Makefile that converts files with
                        ansi2knr (Requires ansi2knr.c from
@@ -20,7 +20,7 @@
  makefile.dec      =>  DEC Alpha UNIX makefile
  makefile.dj2      =>  DJGPP 2 makefile
  makefile.elf      =>  Linux/ELF makefile symbol versioning,
-                       gcc, creates libpng10.so.0.1.0.53)
+                       gcc, creates libpng10.so.0.1.0.54)
  makefile.freebsd  =>  FreeBSD makefile
  makefile.gcc      =>  Generic gcc makefile
  makefile.gccmmx   =>  Generic gcc makefile previously using MMX code
@@ -38,14 +38,14 @@
  makefile.os2      =>  OS/2 Makefile (gcc and emx, requires pngos2.def)
  makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
  makefile.sggcc    =>  Silicon Graphics (gcc,
-                       creates libpng10.so.0.1.0.53)
+                       creates libpng10.so.0.1.0.54)
  makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
  makefile.solaris  =>  Solaris 2.X makefile (gcc,
-                       creates libpng10.so.0.1.0.53)
+                       creates libpng10.so.0.1.0.54)
  makefile.solaris-x86  =>  Solaris 2.X makefile (gcc, no MMX code,
-                       creates libpng10.so.0.1.0.53)
+                       creates libpng10.so.0.1.0.54)
  makefile.so9      =>  Solaris 9 makefile (gcc,
-                       creates libpng10.so.0.1.0.53)
+                       creates libpng10.so.0.1.0.54)
  makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
  makefile.sunos    =>  Sun makefile
  makefile.32sunu   =>  Sun Ultra 32-bit makefile
diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in
index d18123d..27d9aea 100755
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -11,7 +11,7 @@
 
 # Modeled after libxml-config.
 
-version=1.0.53
+version=1.0.54
 prefix=""
 libdir=""
 libs=""
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index 47ad1a2..5245b8d 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@
 
 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.0.53
+Version: 1.0.54
 Libs: -L${libdir} -lpng10
 Cflags: -I${includedir}
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index 1bd7cba..38cc18f 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index af326cc..45b1a95 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.aix b/scripts/makefile.aix
index 0ad9bcd..6aaccfd 100644
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -23,7 +23,7 @@
 
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 prefix=/usr/local
diff --git a/scripts/makefile.beos b/scripts/makefile.beos
index d7669a8..f926051 100644
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.cegcc b/scripts/makefile.cegcc
index 9b82cad..f7819e0 100644
--- a/scripts/makefile.cegcc
+++ b/scripts/makefile.cegcc
@@ -23,7 +23,7 @@
 
 VERMAJ = 1
 VERMIN = 0
-VERMIC = 53
+VERMIC = 54
 VER = $(VERMAJ).$(VERMIN).$(VERMIC)
 NAME = libpng
 PACKAGE = $(NAME)-$(VER)
diff --git a/scripts/makefile.cygwin b/scripts/makefile.cygwin
index f53ab2e..294b710 100644
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -77,7 +77,7 @@
 LIBNAME = libpng10
 PNGMAJ = 0
 CYGDLL = 10
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=cygpng$(CYGDLL).dll
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index 4ee721c..c2b0cca 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -22,7 +22,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 10
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.dec b/scripts/makefile.dec
index e3cfc96..e30794a 100644
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -8,7 +8,7 @@
 
 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng10
 
diff --git a/scripts/makefile.elf b/scripts/makefile.elf
index 584239e..d661823 100644
--- a/scripts/makefile.elf
+++ b/scripts/makefile.elf
@@ -16,7 +16,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.gcmmx b/scripts/makefile.gcmmx
index ca52b76..2578d33 100644
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -17,7 +17,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64
index 37627d6..6f557d5 100644
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -21,7 +21,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index 8ce27ea..94da811 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index a6ac6a6..0b77871 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -21,7 +21,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index f0f9eb5..e379f5c 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -10,7 +10,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.mingw b/scripts/makefile.mingw
index f605c35..be75634 100644
--- a/scripts/makefile.mingw
+++ b/scripts/makefile.mingw
@@ -81,7 +81,7 @@
 LIBNAME = libpng10
 PNGMAJ = 0
 MINGDLL = 10
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=libpng$(MINGDLL).dll
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index 8dcb50a..4829900 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -17,7 +17,7 @@
 
 LIB=	png10
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.0.53
+SHLIB_MINOR=	1.0.54
 SRCS=	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
diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd
index 7dbc80f..d093172 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -17,7 +17,7 @@
 
 LIB=	png
 SHLIB_MAJOR=	3
-SHLIB_MINOR=	1.0.53
+SHLIB_MINOR=	1.0.54
 SRCS=	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
diff --git a/scripts/makefile.nommx b/scripts/makefile.nommx
index 6a99d42..d2a7f17 100644
--- a/scripts/makefile.nommx
+++ b/scripts/makefile.nommx
@@ -10,7 +10,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index 2fa31b2..0d15063 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -11,7 +11,7 @@
 MANDIR= ${PREFIX}/man/cat
 
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.0.53
+SHLIB_MINOR=	1.0.54
 
 LIB=	png
 SRCS=	png.c pngerror.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index 780d9ed..aa28118 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -12,7 +12,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index f8ef68d..413f5c7 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -9,7 +9,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index e07bec5..70371d4 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -9,7 +9,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index 869c6a8..5ecbfff 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -11,7 +11,7 @@
 
 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng10
 
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index 4828f05..97e22c2 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.solaris-x86 b/scripts/makefile.solaris-x86
index b550004..7b5cb45 100644
--- a/scripts/makefile.solaris-x86
+++ b/scripts/makefile.solaris-x86
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.53
+PNGMIN = 1.0.54
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/png32ce.def b/scripts/png32ce.def
index e2ea337..6ac972b 100644
--- a/scripts/png32ce.def
+++ b/scripts/png32ce.def
@@ -5,7 +5,7 @@
 LIBRARY lpngce
 
 EXPORTS
-;Version 1.0.53
+;Version 1.0.54
   png_build_grayscale_palette  @1
   png_check_sig        @2
   png_chunk_error      @3
diff --git a/scripts/pngos2.def b/scripts/pngos2.def
index 09e78ec..9651098 100644
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@
 ; PNG.LIB module definition file for OS/2
 ;----------------------------------------
 
-; Version 1.0.53
+; Version 1.0.54
 
 LIBRARY		PNG
 DESCRIPTION	"PNG image compression library for OS/2"
diff --git a/scripts/pngw32.def b/scripts/pngw32.def
index 4fe92a5..dbe2469 100644
--- a/scripts/pngw32.def
+++ b/scripts/pngw32.def
@@ -5,7 +5,7 @@
 LIBRARY
 
 EXPORTS
-;Version 1.0.53
+;Version 1.0.54
   png_build_grayscale_palette  @1
   png_check_sig        @2
   png_chunk_error      @3