8208353: Upgrade JDK 8u to libpng 1.6.35

Reviewed-by: serb, jdv

src/share/native/sun/awt/libpng/CHANGES

-#if 0
 CHANGES - changes for libpng
 
 version 0.1 [March 29, 1995]
@@ -833,7 +832,7 @@ Version 1.0.7beta11 [May 7, 2000]
   Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes
     which are no longer used.
   Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is
-    defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXT_SUPPORTED
+    defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXt_SUPPORTED
     is defined.
   Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory
     overrun when old applications fill the info_ptr->text structure directly.
@@ -1454,7 +1453,7 @@ Version 1.2.6beta4 [July 28, 2004]
     sequential read support.
   Added some "#if PNG_WRITE_SUPPORTED" blocks.
   Added #ifdef to remove some redundancy in png_malloc_default().
-  Use png_malloc instead of png_zalloc to allocate the pallete.
+  Use png_malloc instead of png_zalloc to allocate the palette.
 
 Version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004]
   Fixed buffer overflow vulnerability (CVE-2004-0597) in png_handle_tRNS().
@@ -3259,7 +3258,7 @@ Version 1.5.2beta01 [February 13, 2011]
   Revised PNG_EXPORTA macro to not use an empty parameter, to accommodate the
     old VisualC++ preprocessor.
   Turned on interlace handling in png_read_png().
-  Fixed gcc pendantic warnings.
+  Fixed gcc pedantic warnings.
   Handle longjmp in Cygwin.
   Fixed png_get_current_row_number() in the interlaced case.
   Cleaned up ALPHA flags and transformations.
@@ -3359,7 +3358,7 @@ Version 1.5.3beta05 [May 6, 2011]
   Pass "" instead of '\0' to png_default_error() in png_err().  This mistake
     was introduced in libpng-1.2.20beta01.  This fixes CVE-2011-2691.
   Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make the zlib "CMF" byte
-    optimization configureable.
+    optimization configurable.
   IDAT compression failed if preceded by a compressed text chunk (bug
     introduced in libpng-1.5.3beta01-02).  This was because the attempt to
     reset the zlib stream in png_write_IDAT happened after the first IDAT
@@ -3643,7 +3642,7 @@ Version 1.5.6beta05 [October 12, 2011]
   Fixed bug in png_write_chunk_header() debug print, introduced in 1.5.6beta01.
 
 Version 1.5.6beta06 [October 17, 2011]
-  Removed two redundant tests for unitialized row.
+  Removed two redundant tests for uninitialized row.
   Fixed a relatively harmless memory overwrite in compressed text writing
     with a 1 byte zlib buffer.
   Add ability to call png_read_update_info multiple times to pngvalid.c.
@@ -3689,7 +3688,7 @@ Version 1.5.7beta01 [November 4, 2011]
     crash.  The pngmem.c implementation of png_malloc() included a cast
     to png_size_t which would fail on large allocations on 16-bit systems.
   Fix for the preprocessor of the Intel C compiler. The preprocessor
-    splits adjacent @ signs with a space; this changes the concatentation
+    splits adjacent @ signs with a space; this changes the concatenation
     token from @-@-@ to PNG_JOIN; that should work with all compiler
     preprocessors.
   Paeth filter speed improvements from work by Siarhei Siamashka. This
@@ -3735,7 +3734,7 @@ Version 1.5.7beta03 [November 17, 2011]
     gray (on palette) itself.
   Fixes for C++ compilation using g++ When libpng source is compiled
     using g++. The compiler imposes C++ rules on the C source; thus it
-    is desireable to make the source work with either C or C++ rules
+    is desirable to make the source work with either C or C++ rules
     without throwing away useful error information.  This change adds
     png_voidcast to allow C semantic (void*) cases or the corresponding
     C++ static_cast operation, as appropriate.
@@ -4061,7 +4060,7 @@ Version 1.6.0beta17 [March 10, 2012]
     possible to call png_inflate() incrementally.  A warning is no longer
     issued if the language tag or translated keyword in the iTXt chunk
     has zero length.
-  If benign errors are disabled use maximum window on ancilliary inflate.
+  If benign errors are disabled use maximum window on ancillary inflate.
     This works round a bug introduced in 1.5.4 where compressed ancillary
     chunks could end up with a too-small windowBits value in the deflate
     header.
@@ -4176,7 +4175,7 @@ Version 1.6.0beta27 [August 11, 2012]
     declared even though the functions are never actually defined.  This
     change provides a dummy definition so that the declarations work, yet any
     implementation will fail to compile because of an incomplete type.
-  Re-eliminated the use of strcpy() in pngtest.c.  An unncessary use of
+  Re-eliminated the use of strcpy() in pngtest.c.  An unnecessary use of
     strcpy() was accidentally re-introduced in libpng16; this change replaces
     it with strncpy().
   Eliminated use of png_sizeof(); use sizeof() instead.
@@ -4309,7 +4308,7 @@ Version 1.6.0beta31 [November 1, 2012]
     resulting in VS2010 having to update the files.
   Removed non-working ICC profile support code that was mostly added to
     libpng-1.6.0beta29 and beta30. There was too much code for too little
-    gain; implementing full ICC color correction may be desireable but is left
+    gain; implementing full ICC color correction may be desirable but is left
     up to applications.
 
 Version 1.6.0beta32 [November 25, 2012]
@@ -4592,7 +4591,7 @@ Version 1.6.3beta07 [June 8, 2013]
     the optimizations ('check' vs 'api') are exposed in the public header files
     except that the new setting PNG_ARM_NEON_OPT documents how libpng makes the
     decision about whether or not to use the optimizations.
-  Protect symbol prefixing against CC/CPPFLAGS/CFLAGS useage.
+  Protect symbol prefixing against CC/CPPFLAGS/CFLAGS usage.
     Previous iOS/Xcode fixes for the ARM NEON optimizations moved the test
     on __ARM_NEON__ from configure time to compile time.  This breaks symbol
     prefixing because the definition of the special png_init_filter_functions
@@ -5635,7 +5634,7 @@ Version 1.6.24beta02 [June 23, 2016]
     to All and adds a list of the warnings that need to be turned off.  This is
     semi-documentary; the intent is to tell libpng users which warnings have
     been examined and judged non-fixable at present.  The warning about
-    structure padding is fixable, but it would be a signficant change (moving
+    structure padding is fixable, but it would be a significant change (moving
     structure members around).
 
 Version 1.6.24beta03 [July 4, 2016]
@@ -5761,7 +5760,9 @@ Version 1.6.27beta01 [November 2, 2016]
     if built with zlib-1.2.8.1.
 
 Version 1.6.27rc01 [December 27, 2016]
-  Control ADLER32 checking with new PNG_IGNORE_ADLER32 option.
+  Control ADLER32 checking with new PNG_IGNORE_ADLER32 option. Fixes
+    an endless loop when handling erroneous ADLER32 checksums; bug
+    introduced in libpng-1.6.26.
   Removed the use of a macro containing the pre-processor 'defined'
     operator.  It is unclear whether this is valid; a macro that
     "generates" 'defined' is not permitted, but the use of the word
@@ -5779,7 +5780,7 @@ Version 1.6.28rc01 [January 3, 2017]
   Added option to Cmake build allowing a custom location of zlib to be
     specified in a scenario where libpng is being built as a subproject
     alongside zlib by another project (Sam Serrels).
-  Changed png_ptr->options from a png_byte to png_uint_32, to accomodate
+  Changed png_ptr->options from a png_byte to png_uint_32, to accommodate
     up to 16 options.
 
 Version 1.6.28rc02 [January 4, 2017]
@@ -5794,11 +5795,277 @@ Version 1.6.28rc03 [January 4, 2017]
 Version 1.6.28 [January 5, 2017]
   No changes.
 
+Version 1.6.29beta01 [January 12, 2017]
+  Readded "include(GNUInstallDirs)" to CMakeLists.txt (Gianfranco Costamagna).
+  Moved SSE2 optimization code into the main libpng source directory.
+    Configure libpng with "configure --enable-intel-sse" or compile
+    libpng with "-DPNG_INTEL_SSE" in CPPFLAGS to enable it.
+  Simplified conditional compilation in pngvalid.c, for AIX (Michael Felt).
+
+Version 1.6.29beta02 [February 22, 2017]
+  Avoid conditional directives that break statements in pngrutil.c (Romero
+    Malaquias)
+  The contrib/examples/pngtopng.c recovery code was in the wrong "if"
+    branches; the comments were correct.
+  Added code for PowerPC VSX optimisation (Vadim Barkov).
+
+Version 1.6.29beta03 [March 1, 2017]
+  Avoid potential overflow of shift operations in png_do_expand() (Aaron Boxer).
+  Change test ZLIB_VERNUM >= 0x1281 to ZLIB_VERNUM >= 0x1290 in pngrutil.c
+    because Solaris 11 distributes zlib-1.2.8.f that is older than 1.2.8.1,
+    as suggested in zlib FAQ, item 24.
+  Suppress clang warnings about implicit sign changes in png.c
+
+Version 1.6.29 [March 16, 2017]
+  No changes.
+
+Version 1.6.30beta01 [April 1, 2017]
+  Added missing "$(CPPFLAGS)" to the compile line for c.pic.o in
+    makefile.linux and makefile.solaris-x86 (Cosmin).
+  Revised documentation of png_get_error_ptr() in the libpng manual.
+  Silence clang -Wcomma and const drop warnings (Viktor Szakats).
+  Update Sourceforge URLs in documentation (https instead of http).
+
+Version 1.6.30beta02 [April 22, 2017]
+  Document need to check for integer overflow when allocating a pixel
+    buffer for multiple rows in contrib/gregbook, contrib/pngminus,
+    example.c, and in the manual (suggested by Jaeseung Choi). This
+    is similar to the bug reported against pngquant in CVE-2016-5735.
+  Removed reference to the obsolete PNG_SAFE_LIMITS macro in the documentation.
+
+Version 1.6.30beta03 [May 22, 2017]
+  Check for integer overflow in contrib/visupng and contrib/tools/genpng.
+  Do not double evaluate CMAKE_SYSTEM_PROCESSOR in CMakeLists.txt.
+  Test CMAKE_HOST_WIN32 instead of WIN32 in CMakeLists.txt.
+  Fix some URL in documentation.
+
+Version 1.6.30beta04 [June 7, 2017]
+  Avoid writing an empty IDAT when the last IDAT exactly fills the
+    compression buffer (bug report by Brian Baird). This bug was
+    introduced in libpng-1.6.0.
+
+Version 1.6.30rc01 [June 14, 2017]
+  No changes.
+
+Version 1.6.30rc02 [June 25, 2017]
+  Update copyright year in pnglibconf.h, make ltmain.sh executable.
+  Add a reference to the libpng.download site in README.
+
+Version 1.6.30 [June 28, 2017]
+  No changes.
+
+Version 1.6.31beta01 [July 5, 2017]
+  Guard the definition of _POSIX_SOURCE in pngpriv.h (AIX already defines it;
+    bug report by Michael Felt).
+  Revised pngpriv.h to work around failure to compile arm/filter_neon.S
+    ("typedef" directive is unrecognized by the assembler). The problem
+    was introduced in libpng-1.6.30beta01.
+  Added "Requires: zlib" to libpng.pc.in (Pieter Neerincx).
+  Added special case for FreeBSD in arm/filter_neon.S (Maya Rashish).
+
+Version 1.6.31beta02 [July 8, 2017]
+  Added instructions for disabling hardware optimizations in INSTALL.
+  Added "--enable-hardware-optimizations" configuration flag to enable
+    or disable all hardware optimizations with one flag.
+
+Version 1.6.31beta03 [July 9, 2017]
+  Updated CMakeLists.txt to add INTEL_SSE and MIPS_MSA platforms.
+  Changed "int" to "png_size_t" in intel/filter_sse2.c to prevent
+    possible integer overflow (Bug report by John Bowler).
+  Quieted "declaration after statement" warnings in intel/filter_sse2.c.
+  Added scripts/makefile-linux-opt, which has hardware optimizations enabled.
+
+Version 1.6.31beta04 [July 11, 2017]
+  Removed one of the GCC-7.1.0 'strict-overflow' warnings that result when
+    integers appear on both sides of a compare.  Worked around the others by
+    forcing the strict-overflow setting in the relevant functions to a level
+    where they are not reported (John Bowler).
+  Changed "FALL THROUGH" comments to "FALLTHROUGH" because GCC doesn't like
+    the space.
+  Worked around some C-style casts from (void*) because g++ 5.4.0 objects
+    to them.
+  Increased the buffer size for 'sprint' to pass the gcc 7.1.0 'sprint
+    overflow' check that is on by default with -Wall -Wextra.
+
+Version 1.6.31beta05 [July 13, 2017]
+  Added eXIf chunk support.
+
+Version 1.6.31beta06 [July 17, 2017]
+  Added a minimal eXIf chunk (with Orientation and FocalLengthIn35mmFilm
+    tags) to pngtest.png.
+
+Version 1.6.31beta07 [July 18, 2017]
+  Revised the eXIf chunk in pngtest.png to fix "Bad IFD1 Directory" warning.
+
+Version 1.6.31rc01 [July 19, 2017]
+  No changes.
+
+Version 1.6.31rc02 [July 25, 2017]
+  Fixed typo in example.c (png_free_image should be png_image_free) (Bug
+    report by John Smith)
+
+Version 1.6.31 [July 27, 2017]
+  No changes.
+
+Version 1.6.32beta01 [July 31, 2017]
+  Avoid possible NULL dereference in png_handle_eXIf when benign_errors
+    are allowed. Avoid leaking the input buffer "eXIf_buf".
+  Eliminated png_ptr->num_exif member from pngstruct.h and added num_exif
+    to arguments for png_get_eXIf() and png_set_eXIf().
+  Added calls to png_handle_eXIf(() in pngread.c and png_write_eXIf() in
+    pngwrite.c, and made various other fixes to png_write_eXIf().
+  Changed name of png_get_eXIF and png_set_eXIf() to png_get_eXIf_1() and
+    png_set_eXIf_1(), respectively, to avoid breaking API compatibility
+    with libpng-1.6.31.
+
+Version 1.6.32beta02 [August 1, 2017]
+  Updated contrib/libtests/pngunknown.c with eXIf chunk.
+
+Version 1.6.32beta03 [August 2, 2017]
+  Initialized btoa[] in pngstest.c
+  Stop memory leak when returning from png_handle_eXIf() with an error
+    (Bug report from the OSS-fuzz project).
+
+Version 1.6.32beta04 [August 2, 2017]
+  Replaced local eXIf_buf with info_ptr-eXIf_buf in png_handle_eXIf().
+  Update libpng.3 and libpng-manual.txt about eXIf functions.
+
+Version 1.6.32beta05 [August 2, 2017]
+  Restored png_get_eXIf() and png_set_eXIf() to maintain API compatibility.
+
+Version 1.6.32beta06 [August 2, 2017]
+  Removed png_get_eXIf_1() and png_set_eXIf_1().
+
+Version 1.6.32beta07 [August 3, 2017]
+  Check length of all chunks except IDAT against user limit to fix an
+    OSS-fuzz issue (Fixes CVE-2017-12652).
+
+Version 1.6.32beta08 [August 3, 2017]
+  Check length of IDAT against maximum possible IDAT size, accounting
+    for height, rowbytes, interlacing and zlib/deflate overhead.
+  Restored png_get_eXIf_1() and png_set_eXIf_1(), because strlen(eXIf_buf)
+    does not work (the eXIf chunk data can contain zeroes).
+
+Version 1.6.32beta09 [August 3, 2017]
+  Require cmake-2.8.8 in CMakeLists.txt. Revised symlink creation,
+    no longer using deprecated cmake LOCATION feature (Clifford Yapp).
+  Fixed five-byte error in the calculation of IDAT maximum possible size.
+  
+Version 1.6.32beta10 [August 5, 2017]
+  Moved chunk-length check into a png_check_chunk_length() private
+    function (Suggested by Max Stepin).
+  Moved bad pngs from tests to contrib/libtests/crashers
+  Moved testing of bad pngs into a separate tests/pngtest-badpngs script
+  Added the --xfail (expected FAIL) option to pngtest.c. It writes XFAIL
+    in the output but PASS for the libpng test.
+  Require cmake-3.0.2 in CMakeLists.txt (Clifford Yapp).
+  Fix "const" declaration info_ptr argument to png_get_eXIf_1() and the
+    num_exif argument to png_get_eXIf_1() (Github Issue 171).
+
+Version 1.6.32beta11 [August 7, 2017]
+  Added "eXIf" to "chunks_to_ignore[]" in png_set_keep_unknown_chunks().
+  Added huge_IDAT.png and empty_ancillary_chunks.png to testpngs/crashers.
+  Make pngtest --strict, --relax, --xfail options imply -m (multiple).
+  Removed unused chunk_name parameter from png_check_chunk_length().
+  Relocated setting free_me for eXIf data, to stop an OSS-fuzz leak.
+  Initialize profile_header[] in png_handle_iCCP() to fix OSS-fuzz issue.
+  Initialize png_ptr->row_buf[0] to 255 in png_read_row() to fix OSS-fuzz UMR.
+  Attempt to fix a UMR in png_set_text_2() to fix OSS-fuzz issue.
+  Increase minimum zlib stream from 9 to 14 in png_handle_iCCP(), to account
+    for the minimum 'deflate' stream, and relocate the test to a point
+    after the keyword has been read.
+  Check that the eXIf chunk has at least 2 bytes and begins with "II" or "MM".
+
+Version 1.6.32rc01 [August 18, 2017]
+  Added a set of "huge_xxxx_chunk.png" files to contrib/testpngs/crashers,
+    one for each known chunk type, with length = 2GB-1.
+  Check for 0 return from png_get_rowbytes() and added some (size_t) typecasts
+    in contrib/pngminus/*.c to stop some Coverity issues (162705, 162706,
+    and 162707).
+  Renamed chunks in contrib/testpngs/crashers to avoid having files whose
+    names differ only in case; this causes problems with some platforms
+    (github issue #172).
+
+Version 1.6.32rc02 [August 22, 2017]
+  Added contrib/oss-fuzz directory which contains files used by the oss-fuzz
+    project (https://github.com/google/oss-fuzz/tree/master/projects/libpng).
+
+Version 1.6.32 [August 24, 2017]
+  No changes.
+
+Version 1.6.33beta01 [August 28, 2017]
+  Added PNGMINUS_UNUSED macro to contrib/pngminus/p*.c and added missing
+    parenthesis in contrib/pngminus/pnm2png.c (bug report by Christian Hesse).
+  Fixed off-by-one error in png_do_check_palette_indexes() (Bug report
+    by Mick P., Source Forge Issue #269).
+
+Version 1.6.33beta02 [September 3, 2017]
+  Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
+    to fix shortlived oss-fuzz issue 3234.
+  Compute a larger limit on IDAT because some applications write a deflate
+    buffer for each row (Bug report by Andrew Church).
+  Use current date (DATE) instead of release-date (RDATE) in last
+    changed date of contrib/oss-fuzz files.
+  Enabled ARM support in CMakeLists.txt (Bernd Kuhls).
+
+Version 1.6.33beta03 [September 14, 2017]
+  Fixed incorrect typecast of some arguments to png_malloc() and
+    png_calloc() that were png_uint_32 instead of png_alloc_size_t
+    (Bug report by "irwir" in Github libpng issue #175).
+  Use pnglibconf.h.prebuilt when building for ANDROID with cmake (Github
+    issue 162, by rcdailey).
+
+Version 1.6.33rc01 [September 20, 2017]
+  Initialize memory allocated by png_inflate to zero, using memset, to
+    stop an oss-fuzz "use of uninitialized value" detection in png_set_text_2()
+    due to truncated iTXt or zTXt chunk.
+  Initialize memory allocated by png_read_buffer to zero, using memset, to
+    stop an oss-fuzz "use of uninitialized value" detection in
+    png_icc_check_tag_table() due to truncated iCCP chunk.
+  Removed a redundant test (suggested by "irwir" in Github issue #180).
+
+Version 1.6.33rc02 [September 23, 2017]
+  Added an interlaced version of each file in contrib/pngsuite.
+  Relocate new memset() call in pngrutil.c.
+  Removed more redundant tests (suggested by "irwir" in Github issue #180).
+  Add support for loading images with associated alpha in the Simplified
+    API (Samuel Williams).
+
+Version 1.6.33 [September 28, 2017]
+  Revert contrib/oss-fuzz/libpng_read_fuzzer.cc to libpng-1.6.32 state.
+  Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
+  Add end_info structure and png_read_end() to the libpng fuzzer.
+
+Version 1.6.34 [September 29, 2017]
+  Removed contrib/pngsuite/i*.png; some of them caused test failures.
+
+Version 1.6.35beta01 [March 6, 2018]
+  Restored 21 of the contrib/pngsuite/i*.png, which do not cause test
+    failures. Placed the remainder in contrib/pngsuite/interlaced/i*.png.
+  Added calls to png_set_*() transforms commonly used by browsers to
+    the fuzzer.
+  Removed some unnecessary brackets in pngrtran.c
+  Fixed miscellaneous typos (Patch by github user "luzpaz").
+  Change "ASM C" to "C ASM" in CMakeLists.txt
+  Fixed incorrect handling of bKGD chunk in sub-8-bit files (Cosmin)
+  Added hardware optimization directories to zip and 7z distributions.
+  Fixed incorrect bitmask for options.
+  Fixed many spelling typos.
+
+Version 1.6.35beta02 [March 28, 2018]
+  Make png_get_iCCP consistent with man page (allow compression-type argument
+  to be NULL, bug report by Lenard Szolnoki).
+
+Version 1.6.35 [July 15, 2018]
+  Replaced the remaining uses of png_size_t with size_t (Cosmin)
+  Fixed the calculation of row_factor in png_check_chunk_length
+    (reported by Thuan Pham in SourceForge issue #278)
+  Added missing parentheses to a macro definition
+    (suggested by "irwir" in GitHub issue #216)
+
 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
+to subscribe).
 
 Glenn R-P
-#endif

src/share/native/sun/awt/libpng/LICENSE

@@ -10,8 +10,8 @@ this sentence.
 
 This code is released under the libpng license.
 
-libpng versions 1.0.7, July 1, 2000 through 1.6.28, January 5, 2017 are
-Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
+libpng versions 1.0.7, July 1, 2000 through 1.6.35, July 15, 2018 are
+Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
 derived from libpng-1.0.6, 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:
@@ -23,6 +23,8 @@ added to the list of Contributing Authors:
    Gilles Vollant
    James Yu
    Mandar Sahastrabuddhe
+   Google Inc.
+   Vadim Barkov
 
 and with the following additions to the disclaimer:
 
@@ -128,4 +130,4 @@ any encryption software.  See the EAR, paragraphs 734.3(b)(3) and
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-January 5, 2017
+July 15, 2018

src/share/native/sun/awt/libpng/README

-README for libpng version 1.6.28 - January 5, 2017 (shared library 16.0)
+README for libpng version 1.6.35 - July 15, 2018 (shared library 16.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
@@ -23,7 +23,7 @@ earlier versions if you are using a shared library.  The type of the
 png_uint_32, which will affect shared-library applications that use
 this function.
 
-To avoid problems with changes to the internals of png info_struct,
+To avoid problems with changes to the internals of the png info_struct,
 new APIs have been made available in 0.95 to avoid direct application
 access to info_ptr.  These functions are the png_set_<chunk> and
 png_get_<chunk> functions.  These functions should be used when
@@ -88,11 +88,11 @@ zlib should be available at the same place that libpng is, or at zlib.net.
 
 You may also want a copy of the PNG specification.  It is available
 as an RFC, a W3C Recommendation, and an ISO/IEC Standard.  You can find
-these at http://www.libpng.org/pub/png/documents/
+these at http://www.libpng.org/pub/png/pngdocs.html .
 
-This code is currently being archived at libpng.sf.net in the
-[DOWNLOAD] area, and at ftp://ftp.simplesystems.org.  If you can't find it
-in any of those places, e-mail me, and I'll help you find it.
+This code is currently being archived at libpng.sourceforge.io in the
+[DOWNLOAD] area, and at http://libpng.download/src .  If you
+can't find it in any of those places, e-mail me, and I'll help you find it.
 
 I am not a lawyer, but I believe that the Export Control Classification
 Number (ECCN) for libpng is EAR99, which means not subject to export
@@ -118,7 +118,7 @@ development group.
 Send comments/corrections/commendations to png-mng-implement at
 lists.sourceforge.net (subscription required; visit
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe) or to glennrp at users.sourceforge.net
+to subscribe).
 
 You can't reach Guy, the original libpng author, at the addresses
 given in previous versions of this document.  He and Andreas will
@@ -179,14 +179,16 @@ Files in this distribution:
       pngwtran.c    =>  Write data transformations
       pngwutil.c    =>  Write utility functions
       arm           =>  Contains optimized code for the ARM platform
+      powerpc       =>  Contains optimized code for the PowerPC platform
       contrib       =>  Contributions
        arm-neon         =>  Optimized code for ARM-NEON platform
+       powerpc-vsx      =>  Optimized code for POWERPC-VSX platform
        examples         =>  Example programs
        gregbook         =>  source code for PNG reading and writing, from
                             Greg Roelofs' "PNG: The Definitive Guide",
                             O'Reilly, 1999
-       intel            =>  Optimized code for INTEL-SSE2 platform
        libtests         =>  Test programs
+       mips-msa         =>  Optimized code for MIPS-MSA platform
        pngminim         =>  Minimal decoder, encoder, and progressive decoder
                             programs demonstrating use of pngusr.dfa
        pngminus         =>  Simple pnm2png and png2pnm programs
@@ -194,6 +196,8 @@ Files in this distribution:
        testpngs
        tools            =>  Various tools
        visupng          =>  Contains a MSVC workspace for VisualPng
+      intel             =>  Optimized code for INTEL-SSE2 platform
+      mips              =>  Optimized code for MIPS platform
       projects      =>  Contains project files and workspaces for
                         building a DLL
        owatcom          =>  Contains a WATCOM project for building libpng

src/share/native/sun/awt/libpng/png.c

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.28 [January 5, 2017]
- * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -42,7 +42,27 @@
 #include "pngpriv.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_28 Your_png_h_is_not_version_1_6_28;
+typedef png_libpng_version_1_6_35 Your_png_h_is_not_version_1_6_35;
+
+#ifdef __GNUC__
+/* The version tests may need to be added to, but the problem warning has
+ * consistently been fixed in GCC versions which obtain wide-spread release.
+ * The problem is that many versions of GCC rearrange comparison expressions in
+ * the optimizer in such a way that the results of the comparison will change
+ * if signed integer overflow occurs.  Such comparisons are not permitted in
+ * ANSI C90, however GCC isn't clever enough to work out that that do not occur
+ * below in png_ascii_from_fp and png_muldiv, so it produces a warning with
+ * -Wextra.  Unfortunately this is highly dependent on the optimizer and the
+ * machine architecture so the warning comes and goes unpredictably and is
+ * impossible to "fix", even were that a good idea.
+ */
+#if __GNUC__ == 7 && __GNUC_MINOR__ == 1
+#define GCC_STRICT_OVERFLOW 1
+#endif /* GNU 7.1.x */
+#endif /* GNU */
+#ifndef GCC_STRICT_OVERFLOW
+#define GCC_STRICT_OVERFLOW 0
+#endif
 
 /* Tells libpng that we have already handled the first "num_bytes" bytes
  * of the PNG file signature.  If the PNG data is embedded into another
@@ -79,7 +99,7 @@ png_set_sig_bytes(png_structrp png_ptr, int num_bytes)
  * PNG signature (this is the same behavior as strcmp, memcmp, etc).
  */
 int PNGAPI
-png_sig_cmp(png_const_bytep sig, png_size_t start, png_size_t num_to_check)
+png_sig_cmp(png_const_bytep sig, size_t start, size_t num_to_check)
 {
    png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
 
@@ -144,7 +164,7 @@ png_reset_crc(png_structrp png_ptr)
  * trouble of calculating it.
  */
 void /* PRIVATE */
-png_calculate_crc(png_structrp png_ptr, png_const_bytep ptr, png_size_t length)
+png_calculate_crc(png_structrp png_ptr, png_const_bytep ptr, size_t length)
 {
    int need_crc = 1;
 
@@ -429,7 +449,7 @@ png_destroy_info_struct(png_const_structrp png_ptr, png_infopp info_ptr_ptr)
  * those cases where it does anything other than a memset.
  */
 PNG_FUNCTION(void,PNGAPI
-png_info_init_3,(png_infopp ptr_ptr, png_size_t png_info_struct_size),
+png_info_init_3,(png_infopp ptr_ptr, size_t png_info_struct_size),
     PNG_DEPRECATED)
 {
    png_inforp info_ptr = *ptr_ptr;
@@ -623,6 +643,26 @@ png_free_data(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 mask,
    }
 #endif
 
+#ifdef PNG_eXIf_SUPPORTED
+   /* Free any eXIf entry */
+   if (((mask & PNG_FREE_EXIF) & info_ptr->free_me) != 0)
+   {
+# ifdef PNG_READ_eXIf_SUPPORTED
+      if (info_ptr->eXIf_buf)
+      {
+         png_free(png_ptr, info_ptr->eXIf_buf);
+         info_ptr->eXIf_buf = NULL;
+      }
+# endif
+      if (info_ptr->exif)
+      {
+         png_free(png_ptr, info_ptr->exif);
+         info_ptr->exif = NULL;
+      }
+      info_ptr->valid &= ~PNG_INFO_eXIf;
+   }
+#endif
+
 #ifdef PNG_hIST_SUPPORTED
    /* Free any hIST entry */
    if (((mask & PNG_FREE_HIST) & info_ptr->free_me) != 0)
@@ -804,15 +844,15 @@ png_get_copyright(png_const_structrp png_ptr)
 #else
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
-      "libpng version 1.6.28 - January 5, 2017" PNG_STRING_NEWLINE \
-      "Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson" \
+      "libpng version 1.6.35 - July 15, 2018" PNG_STRING_NEWLINE \
+      "Copyright (c) 1998-2002,2004,2006-2018 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 "libpng version 1.6.28 - January 5, 2017\
-      Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson\
+   return "libpng version 1.6.35 - July 15, 2018\
+      Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
 #  endif
@@ -930,7 +970,7 @@ png_handle_as_unknown(png_const_structrp png_ptr, png_const_bytep chunk_name)
 
    /* The code is the fifth byte after each four byte string.  Historically this
     * code was always searched from the end of the list, this is no longer
-    * necessary because the 'set' routine handles duplicate entries correcty.
+    * necessary because the 'set' routine handles duplicate entries correctly.
     */
    do /* num_chunk_list > 0, so at least one */
    {
@@ -1901,12 +1941,12 @@ png_colorspace_set_sRGB(png_const_structrp png_ptr, png_colorspacerp colorspace,
     */
    if (intent < 0 || intent >= PNG_sRGB_INTENT_LAST)
       return png_icc_profile_error(png_ptr, colorspace, "sRGB",
-          (unsigned)intent, "invalid sRGB rendering intent");
+          (png_alloc_size_t)intent, "invalid sRGB rendering intent");
 
    if ((colorspace->flags & PNG_COLORSPACE_HAVE_INTENT) != 0 &&
        colorspace->rendering_intent != intent)
       return png_icc_profile_error(png_ptr, colorspace, "sRGB",
-         (unsigned)intent, "inconsistent rendering intents");
+         (png_alloc_size_t)intent, "inconsistent rendering intents");
 
    if ((colorspace->flags & PNG_COLORSPACE_FROM_sRGB) != 0)
    {
@@ -1967,7 +2007,6 @@ icc_check_length(png_const_structrp png_ptr, png_colorspacerp colorspace,
    if (profile_length < 132)
       return png_icc_profile_error(png_ptr, colorspace, name, profile_length,
           "too short");
-
    return 1;
 }
 
@@ -2056,7 +2095,7 @@ png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace,
     */
 
    /* Data checks (could be skipped).  These checks must be independent of the
-    * version number; however, the version number doesn't accomodate changes in
+    * version number; however, the version number doesn't accommodate changes in
     * the header fields (just the known tags and the interpretation of the
     * data.)
     */
@@ -2212,22 +2251,23 @@ png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace,
        * being in range.  All defined tag types have an 8 byte header - a 4 byte
        * type signature then 0.
        */
+
+      /* This is a hard error; potentially it can cause read outside the
+       * profile.
+       */
+      if (tag_start > profile_length || tag_length > profile_length - tag_start)
+         return png_icc_profile_error(png_ptr, colorspace, name, tag_id,
+             "ICC profile tag outside profile");
+
       if ((tag_start & 3) != 0)
       {
-         /* CNHP730S.icc shipped with Microsoft Windows 64 violates this, it is
+         /* CNHP730S.icc shipped with Microsoft Windows 64 violates this; it is
           * only a warning here because libpng does not care about the
           * alignment.
           */
          (void)png_icc_profile_error(png_ptr, NULL, name, tag_id,
              "ICC profile tag start not a multiple of 4");
       }
-
-      /* This is a hard error; potentially it can cause read outside the
-       * profile.
-       */
-      if (tag_start > profile_length || tag_length > profile_length - tag_start)
-         return png_icc_profile_error(png_ptr, colorspace, name, tag_id,
-             "ICC profile tag outside profile");
    }
 
    return 1; /* success, maybe with warnings */
@@ -2695,7 +2735,7 @@ png_check_IHDR(png_const_structrp png_ptr,
 
 #if defined(PNG_sCAL_SUPPORTED) || defined(PNG_pCAL_SUPPORTED)
 /* ASCII to fp functions */
-/* Check an ASCII formated floating point value, see the more detailed
+/* Check an ASCII formatted floating point value, see the more detailed
  * comments in pngpriv.h
  */
 /* The following is used internally to preserve the sticky flags */
@@ -2703,11 +2743,11 @@ png_check_IHDR(png_const_structrp png_ptr,
 #define png_fp_set(state, value) ((state) = (value) | ((state) & PNG_FP_STICKY))
 
 int /* PRIVATE */
-png_check_fp_number(png_const_charp string, png_size_t size, int *statep,
+png_check_fp_number(png_const_charp string, size_t size, int *statep,
     png_size_tp whereami)
 {
    int state = *statep;
-   png_size_t i = *whereami;
+   size_t i = *whereami;
 
    while (i < size)
    {
@@ -2830,10 +2870,10 @@ PNG_FP_End:
 
 /* The same but for a complete string. */
 int
-png_check_fp_string(png_const_charp string, png_size_t size)
+png_check_fp_string(png_const_charp string, size_t size)
 {
    int        state=0;
-   png_size_t char_index=0;
+   size_t char_index=0;
 
    if (png_check_fp_number(string, size, &state, &char_index) != 0 &&
       (char_index == size || string[char_index] == 0))
@@ -2860,7 +2900,7 @@ png_pow10(int power)
    if (power < 0)
    {
       if (power < DBL_MIN_10_EXP) return 0;
-      recip = 1, power = -power;
+      recip = 1; power = -power;
    }
 
    if (power > 0)
@@ -2885,8 +2925,16 @@ png_pow10(int power)
 /* Function to format a floating point value in ASCII with a given
  * precision.
  */
+#if GCC_STRICT_OVERFLOW
+#pragma GCC diagnostic push
+/* The problem arises below with exp_b10, which can never overflow because it
+ * comes, originally, from frexp and is therefore limited to a range which is
+ * typically +/-710 (log2(DBL_MAX)/log2(DBL_MIN)).
+ */
+#pragma GCC diagnostic warning "-Wstrict-overflow=2"
+#endif /* GCC_STRICT_OVERFLOW */
 void /* PRIVATE */
-png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
+png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, size_t size,
     double fp, unsigned int precision)
 {
    /* We use standard functions from math.h, but not printf because
@@ -2938,7 +2986,9 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
             double test = png_pow10(exp_b10+1);
 
             if (test <= DBL_MAX)
-               ++exp_b10, base = test;
+            {
+               ++exp_b10; base = test;
+            }
 
             else
                break;
@@ -2952,7 +3002,10 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
           * test on DBL_MAX above.
           */
          fp /= base;
-         while (fp >= 1) fp /= 10, ++exp_b10;
+         while (fp >= 1)
+         {
+            fp /= 10; ++exp_b10;
+         }
 
          /* Because of the code above fp may, at this point, be
           * less than .1, this is ok because the code below can
@@ -2969,7 +3022,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
              */
             if (exp_b10 < 0 && exp_b10 > -3) /* PLUS 3 TOTAL 4 */
             {
-               czero = (unsigned int)(-exp_b10); /* PLUS 2 digits: TOTAL 3 */
+               czero = 0U-exp_b10; /* PLUS 2 digits: TOTAL 3 */
                exp_b10 = 0;      /* Dot added below before first output. */
             }
             else
@@ -3003,7 +3056,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
                      /* Rounding up to 10, handle that here. */
                      if (czero > 0)
                      {
-                        --czero, d = 1;
+                        --czero; d = 1;
                         if (cdigits == 0) --clead;
                      }
                      else
@@ -3017,7 +3070,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
 
                            else if (ch == 46)
                            {
-                              ch = *--ascii, ++size;
+                              ch = *--ascii; ++size;
                               /* Advance exp_b10 to '1', so that the
                                * decimal point happens after the
                                * previous digit.
@@ -3044,7 +3097,9 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
                               int ch = *--ascii;
 
                               if (ch == 46)
-                                 ++size, exp_b10 = 1;
+                              {
+                                 ++size; exp_b10 = 1;
+                              }
 
                               /* Else lost a leading zero, so 'exp_b10' is
                                * still ok at (-1)
@@ -3080,21 +3135,26 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
                       */
                      if (exp_b10 != (-1))
                      {
-                        if (exp_b10 == 0) *ascii++ = 46, --size;
+                        if (exp_b10 == 0)
+                        {
+                           *ascii++ = 46; --size;
+                        }
                         /* PLUS 1: TOTAL 4 */
                         --exp_b10;
                      }
-                     *ascii++ = 48, --czero;
+                     *ascii++ = 48; --czero;
                   }
 
                   if (exp_b10 != (-1))
                   {
                      if (exp_b10 == 0)
-                        *ascii++ = 46, --size; /* counted above */
+                     {
+                        *ascii++ = 46; --size; /* counted above */
+                     }
 
                      --exp_b10;
                   }
-                  *ascii++ = (char)(48 + (int)d), ++cdigits;
+                  *ascii++ = (char)(48 + (int)d); ++cdigits;
                }
             }
             while (cdigits+czero < precision+clead && fp > DBL_MIN);
@@ -3103,7 +3163,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
 
             /* Check for an exponent, if we don't need one we are
              * done and just need to terminate the string.  At
-             * this point exp_b10==(-1) is effectively if flag - it got
+             * this point exp_b10==(-1) is effectively a flag - it got
              * to '-1' because of the decrement after outputting
              * the decimal point above (the exponent required is
              * *not* -1!)
@@ -3117,7 +3177,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
                 * zeros were *not* output, so this doesn't increase
                 * the output count.
                 */
-               while (--exp_b10 >= 0) *ascii++ = 48;
+               while (exp_b10-- > 0) *ascii++ = 48;
 
                *ascii = 0;
 
@@ -3135,7 +3195,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
              */
             size -= cdigits;
 
-            *ascii++ = 69, --size;    /* 'E': PLUS 1 TOTAL 2+precision */
+            *ascii++ = 69; --size;    /* 'E': PLUS 1 TOTAL 2+precision */
 
             /* The following use of an unsigned temporary avoids ambiguities in
              * the signed arithmetic on exp_b10 and permits GCC at least to do
@@ -3146,12 +3206,12 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
 
                if (exp_b10 < 0)
                {
-                  *ascii++ = 45, --size; /* '-': PLUS 1 TOTAL 3+precision */
-                  uexp_b10 = (unsigned int)(-exp_b10);
+                  *ascii++ = 45; --size; /* '-': PLUS 1 TOTAL 3+precision */
+                  uexp_b10 = 0U-exp_b10;
                }
 
                else
-                  uexp_b10 = (unsigned int)exp_b10;
+                  uexp_b10 = 0U+exp_b10;
 
                cdigits = 0;
 
@@ -3194,6 +3254,9 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
    /* Here on buffer too small. */
    png_error(png_ptr, "ASCII conversion buffer too small");
 }
+#if GCC_STRICT_OVERFLOW
+#pragma GCC diagnostic pop
+#endif /* GCC_STRICT_OVERFLOW */
 
 #  endif /* FLOATING_POINT */
 
@@ -3202,7 +3265,7 @@ png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size,
  */
 void /* PRIVATE */
 png_ascii_from_fixed(png_const_structrp png_ptr, png_charp ascii,
-    png_size_t size, png_fixed_point fp)
+    size_t size, png_fixed_point fp)
 {
    /* Require space for 10 decimal digits, a decimal point, a minus sign and a
     * trailing \0, 13 characters:
@@ -3213,7 +3276,9 @@ png_ascii_from_fixed(png_const_structrp png_ptr, png_charp ascii,
 
       /* Avoid overflow here on the minimum integer. */
       if (fp < 0)
-         *ascii++ = 45, num = (png_uint_32)(-fp);
+      {
+         *ascii++ = 45; num = (png_uint_32)(-fp);
+      }
       else
          num = (png_uint_32)fp;
 
@@ -3251,7 +3316,10 @@ png_ascii_from_fixed(png_const_structrp png_ptr, png_charp ascii,
                 * then ndigits digits to first:
                 */
                i = 5;
-               while (ndigits < i) *ascii++ = 48, --i;
+               while (ndigits < i)
+               {
+                  *ascii++ = 48; --i;
+               }
                while (ndigits >= first) *ascii++ = digits[--ndigits];
                /* Don't output the trailing zeros! */
             }
@@ -3302,6 +3370,15 @@ png_fixed(png_const_structrp png_ptr, double fp, png_const_charp text)
  * the nearest .00001).  Overflow and divide by zero are signalled in
  * the result, a boolean - true on success, false on overflow.
  */
+#if GCC_STRICT_OVERFLOW /* from above */
+/* It is not obvious which comparison below gets optimized in such a way that
+ * signed overflow would change the result; looking through the code does not
+ * reveal any tests which have the form GCC complains about, so presumably the
+ * optimizer is moving an add or subtract into the 'if' somewhere.
+ */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic warning "-Wstrict-overflow=2"
+#endif /* GCC_STRICT_OVERFLOW */
 int
 png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times,
     png_int_32 divisor)
@@ -3416,6 +3493,9 @@ png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times,
 
    return 0;
 }
+#if GCC_STRICT_OVERFLOW
+#pragma GCC diagnostic pop
+#endif /* GCC_STRICT_OVERFLOW */
 #endif /* READ_GAMMA || INCH_CONVERSIONS */
 
 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED)
@@ -3709,7 +3789,7 @@ png_log16bit(png_uint_32 x)
  * of getting this accuracy in practice.
  *
  * To deal with this the following exp() function works out the exponent of the
- * frational part of the logarithm by using an accurate 32-bit value from the
+ * fractional part of the logarithm by using an accurate 32-bit value from the
  * top four fractional bits then multiplying in the remaining bits.
  */
 static const png_uint_32
@@ -4288,13 +4368,13 @@ png_set_option(png_structrp png_ptr, int option, int onoff)
    if (png_ptr != NULL && option >= 0 && option < PNG_OPTION_NEXT &&
       (option & 1) == 0)
    {
-      png_uint_32 mask = 3 << option;
-      png_uint_32 setting = (2 + (onoff != 0)) << option;
+      png_uint_32 mask = 3U << option;
+      png_uint_32 setting = (2U + (onoff != 0)) << option;
       png_uint_32 current = png_ptr->options;
 
-      png_ptr->options = (png_uint_32)(((current & ~mask) | setting) & 0xff);
+      png_ptr->options = (png_uint_32)((current & ~mask) | setting);
 
-      return (current & mask) >> option;
+      return (int)(current & mask) >> option;
    }
 
    return PNG_OPTION_INVALID;
@@ -4306,7 +4386,7 @@ png_set_option(png_structrp png_ptr, int option, int onoff)
    defined(PNG_SIMPLIFIED_WRITE_SUPPORTED)
 /* sRGB conversion tables; these are machine generated with the code in
  * contrib/tools/makesRGB.c.  The actual sRGB transfer curve defined in the
- * specification (see the article at http://en.wikipedia.org/wiki/SRGB)
+ * specification (see the article at https://en.wikipedia.org/wiki/SRGB)
  * is used, not the gamma=1/2.2 approximation use elsewhere in libpng.
  * The sRGB to linear table is exact (to the nearest 16-bit linear fraction).
  * The inverse (linear to sRGB) table has accuracies as follows:

src/share/native/sun/awt/libpng/png.h

@@ -29,9 +29,9 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * libpng version 1.6.28, January 5, 2017
+ * libpng version 1.6.35, July 15, 2018
  *
- * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -40,7 +40,7 @@
  * Authors and maintainers:
  *   libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
  *   libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
- *   libpng versions 0.97, January 1998, through 1.6.28, January 5, 2017:
+ *   libpng versions 0.97, January 1998, through 1.6.35, July 15, 2018:
  *     Glenn Randers-Pehrson.
  *   See also "Contributing Authors", below.
  */
@@ -53,8 +53,8 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.0.7, July 1, 2000 through 1.6.28, January 5, 2017 are
- * Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
+ * libpng versions 1.0.7, July 1, 2000 through 1.6.35, July 15, 2018 are
+ * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
  * derived from libpng-1.0.6, 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:
@@ -66,6 +66,8 @@
  *    Gilles Vollant
  *    James Yu
  *    Mandar Sahastrabuddhe
+ *    Google Inc.
+ *    Vadim Barkov
  *
  * and with the following additions to the disclaimer:
  *
@@ -90,9 +92,6 @@
  *    Glenn Randers-Pehrson
  *    Willem van Schaik
  *
- * Some files in the "scripts" directory have different copyright owners
- * but are also released under this license.
- *
  * libpng versions 0.89, June 1996, through 0.96, May 1997, are
  * Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
  * and are distributed according to the same disclaimer and license as
@@ -238,11 +237,11 @@
  *    ...
  *    1.0.19                  10    10019  10.so.0.19[.0]
  *    ...
- *    1.2.57                  13    10257  12.so.0.57[.0]
+ *    1.2.59                  13    10257  12.so.0.59[.0]
  *    ...
- *    1.5.28                  15    10527  15.so.15.28[.0]
+ *    1.5.30                  15    10527  15.so.15.30[.0]
  *    ...
- *    1.6.28                  16    10628  16.so.16.28[.0]
+ *    1.6.35                  16    10635  16.so.16.35[.0]
  *
  *    Henceforth the source version will match the shared-library major
  *    and minor numbers; the shared-library major version number will be
@@ -263,20 +262,20 @@
  *
  * See libpng.txt or libpng.3 for more information.  The PNG specification
  * is available as a W3C Recommendation and as an ISO Specification,
- * <http://www.w3.org/TR/2003/REC-PNG-20031110/
+ * <https://www.w3.org/TR/2003/REC-PNG-20031110/
  */
 
 /*
  * Y2K compliance in libpng:
  * =========================
  *
- *    January 5, 2017
+ *    July 15, 2018
  *
  *    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 1.6.28 are Y2K compliant.  It is my belief that
+ *    upward through 1.6.35 are Y2K compliant.  It is my belief that
  *    earlier versions were also Y2K compliant.
  *
  *    Libpng only has two year fields.  One is a 2-byte unsigned integer
@@ -338,8 +337,8 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.6.28"
-#define PNG_HEADER_VERSION_STRING " libpng version 1.6.28 - January 5, 2017\n"
+#define PNG_LIBPNG_VER_STRING "1.6.35"
+#define PNG_HEADER_VERSION_STRING " libpng version 1.6.35 - July 15, 2018\n"
 
 #define PNG_LIBPNG_VER_SONUM   16
 #define PNG_LIBPNG_VER_DLLNUM  16
@@ -347,13 +346,13 @@
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   6
-#define PNG_LIBPNG_VER_RELEASE 28
+#define PNG_LIBPNG_VER_RELEASE 35
 
 /* This should match the numeric part of the final component of
  * PNG_LIBPNG_VER_STRING, omitting any leading zero:
  */
 
-#define PNG_LIBPNG_VER_BUILD  0
+#define PNG_LIBPNG_VER_BUILD  02
 
 /* Release Status */
 #define PNG_LIBPNG_BUILD_ALPHA    1
@@ -370,7 +369,7 @@
 #define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with
                                        PNG_LIBPNG_BUILD_PRIVATE */
 
-#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE
+#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_BETA
 
 /* Careful here.  At one time, Guy wanted to use 082, but that would be octal.
  * We must not include leading zeros.
@@ -378,7 +377,7 @@
  * 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 10628 /* 1.6.28 */
+#define PNG_LIBPNG_VER 10635 /* 1.6.35 */
 
 /* Library configuration: these options cannot be changed after
  * the library has been built.
@@ -488,7 +487,7 @@ extern "C" {
 /* This triggers a compiler error in png.c, if png.c and png.h
  * do not agree upon the version number.
  */
-typedef char* png_libpng_version_1_6_28;
+typedef char* png_libpng_version_1_6_35;
 
 /* Basic control structions.  Read libpng-manual.txt or libpng.3 for more info.
  *
@@ -629,8 +628,8 @@ typedef struct png_text_struct
    png_charp key;          /* keyword, 1-79 character description of "text" */
    png_charp text;         /* comment, may be an empty string (ie "")
                               or a NULL pointer */
-   png_size_t text_length; /* length of the text string */
-   png_size_t itxt_length; /* length of the itxt string */
+   size_t text_length;     /* length of the text string */
+   size_t itxt_length;     /* length of the itxt string */
    png_charp lang;         /* language code, 0-79 characters
                               or a NULL pointer */
    png_charp lang_key;     /* keyword translated UTF-8 string, 0 or more
@@ -683,7 +682,7 @@ typedef struct png_unknown_chunk_t
 {
    png_byte name[5]; /* Textual chunk name with '\0' terminator */
    png_byte *data;   /* Data, should not be modified on read! */
-   png_size_t size;
+   size_t size;
 
    /* On write 'location' must be set using the flag values listed below.
     * Notice that on read it is set by libpng however the values stored have
@@ -708,7 +707,7 @@ typedef png_unknown_chunk * * png_unknown_chunkpp;
 /* Maximum positive integer used in PNG is (2^31)-1 */
 #define PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL)
 #define PNG_UINT_32_MAX ((png_uint_32)(-1))
-#define PNG_SIZE_MAX ((png_size_t)(-1))
+#define PNG_SIZE_MAX ((size_t)(-1))
 
 /* These are constants for fixed point values encoded in the
  * PNG specification manner (x100000)
@@ -805,6 +804,7 @@ typedef png_unknown_chunk * * png_unknown_chunkpp;
 #define PNG_INFO_sPLT 0x2000U  /* ESR, 1.0.6 */
 #define PNG_INFO_sCAL 0x4000U  /* ESR, 1.0.6 */
 #define PNG_INFO_IDAT 0x8000U  /* ESR, 1.0.6 */
+#define PNG_INFO_eXIf 0x10000U /* GR-P, 1.6.31 */
 
 /* This is used for the transformation routines, as some of them
  * change these values for the row.  It also should enable using
@@ -813,7 +813,7 @@ typedef png_unknown_chunk * * png_unknown_chunkpp;
 typedef struct png_row_info_struct
 {
    png_uint_32 width;    /* width of row */
-   png_size_t rowbytes;  /* number of bytes in row */
+   size_t rowbytes;      /* number of bytes in row */
    png_byte color_type;  /* color type of row */
    png_byte bit_depth;   /* bit depth of row */
    png_byte channels;    /* number of channels (1, 2, 3, or 4) */
@@ -832,7 +832,7 @@ typedef png_row_info * * png_row_infopp;
  * expected to return the read data in the buffer.
  */
 typedef PNG_CALLBACK(void, *png_error_ptr, (png_structp, png_const_charp));
-typedef PNG_CALLBACK(void, *png_rw_ptr, (png_structp, png_bytep, png_size_t));
+typedef PNG_CALLBACK(void, *png_rw_ptr, (png_structp, png_bytep, size_t));
 typedef PNG_CALLBACK(void, *png_flush_ptr, (png_structp));
 typedef PNG_CALLBACK(void, *png_read_status_ptr, (png_structp, png_uint_32,
     int));
@@ -969,8 +969,8 @@ PNG_EXPORT(2, void, png_set_sig_bytes, (png_structrp png_ptr, int num_bytes));
  * signature, and non-zero otherwise.  Having num_to_check == 0 or
  * start > 7 will always fail (ie return non-zero).
  */
-PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, png_size_t start,
-    png_size_t num_to_check));
+PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, size_t start,
+    size_t num_to_check));
 
 /* Simple signature checking function.  This is the same as calling
  * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n).
@@ -989,11 +989,11 @@ PNG_EXPORTA(5, png_structp, png_create_write_struct,
     png_error_ptr warn_fn),
     PNG_ALLOCATED);
 
-PNG_EXPORT(6, png_size_t, png_get_compression_buffer_size,
+PNG_EXPORT(6, size_t, png_get_compression_buffer_size,
     (png_const_structrp png_ptr));
 
 PNG_EXPORT(7, void, png_set_compression_buffer_size, (png_structrp png_ptr,
-    png_size_t size));
+    size_t size));
 
 /* Moved from pngconf.h in 1.4.0 and modified to ensure setjmp/longjmp
  * match up.
@@ -1046,7 +1046,7 @@ PNG_EXPORT(13, void, png_write_sig, (png_structrp png_ptr));
 
 /* Write a PNG chunk - size, type, (optional) data, CRC. */
 PNG_EXPORT(14, void, png_write_chunk, (png_structrp png_ptr, png_const_bytep
-    chunk_name, png_const_bytep data, png_size_t length));
+    chunk_name, png_const_bytep data, size_t length));
 
 /* Write the start of a PNG chunk - length and chunk name. */
 PNG_EXPORT(15, void, png_write_chunk_start, (png_structrp png_ptr,
@@ -1054,7 +1054,7 @@ PNG_EXPORT(15, void, png_write_chunk_start, (png_structrp png_ptr,
 
 /* Write the data of a PNG chunk started with png_write_chunk_start(). */
 PNG_EXPORT(16, void, png_write_chunk_data, (png_structrp png_ptr,
-    png_const_bytep data, png_size_t length));
+    png_const_bytep data, size_t length));
 
 /* Finish a chunk started with png_write_chunk_start() (includes CRC). */
 PNG_EXPORT(17, void, png_write_chunk_end, (png_structrp png_ptr));
@@ -1068,7 +1068,7 @@ PNG_EXPORTA(18, png_infop, png_create_info_struct, (png_const_structrp png_ptr),
  * the API will be removed in the future.
  */
 PNG_EXPORTA(19, void, png_info_init_3, (png_infopp info_ptr,
-    png_size_t png_info_struct_size), PNG_DEPRECATED);
+    size_t png_info_struct_size), PNG_DEPRECATED);
 
 /* Writes all the PNG information before the image. */
 PNG_EXPORT(20, void, png_write_info_before_PLTE,
@@ -1165,7 +1165,7 @@ PNG_EXPORT(35, void, png_build_grayscale_palette, (int bit_depth,
  * corresponding composited pixel, and the color channels are unassociated
  * (not premultiplied).  The gamma encoded color channels must be scaled
  * according to the contribution and to do this it is necessary to undo
- * the encoding, scale the color values, perform the composition and reencode
+ * the encoding, scale the color values, perform the composition and re-encode
  * the values.  This is the 'PNG' mode.
  *
  * The alternative is to 'associate' the alpha with the color information by
@@ -1221,7 +1221,7 @@ PNG_FIXED_EXPORT(228, void, png_set_alpha_mode_fixed, (png_structrp png_ptr,
  *
  * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC);
  *    In this case the output is assumed to be something like an sRGB conformant
- *    display preceeded by a power-law lookup table of power 1.45.  This is how
+ *    display preceded by a power-law lookup table of power 1.45.  This is how
  *    early Mac systems behaved.
  *
  * png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR);
@@ -1268,7 +1268,7 @@ PNG_FIXED_EXPORT(228, void, png_set_alpha_mode_fixed, (png_structrp png_ptr,
  *
  * When the default gamma of PNG files doesn't match the output gamma.
  *    If you have PNG files with no gamma information png_set_alpha_mode allows
- *    you to provide a default gamma, but it also sets the ouput gamma to the
+ *    you to provide a default gamma, but it also sets the output gamma to the
  *    matching value.  If you know your PNG files have a gamma that doesn't
  *    match the output you can take advantage of the fact that
  *    png_set_alpha_mode always sets the output gamma but only sets the PNG
@@ -1719,7 +1719,7 @@ PNG_EXPORT(218, png_byte, png_get_current_pass_number, (png_const_structrp));
  *           chunk will cause an error at this point unless it is to be saved.
  * positive: The chunk was handled, libpng will ignore/discard it.
  *
- * See "INTERACTION WTIH USER CHUNK CALLBACKS" below for important notes about
+ * See "INTERACTION WITH USER CHUNK CALLBACKS" below for important notes about
  * how this behavior will change in libpng 1.7
  */
 PNG_EXPORT(88, void, png_set_read_user_chunk_fn, (png_structrp png_ptr,
@@ -1744,7 +1744,7 @@ PNG_EXPORT(91, png_voidp, png_get_progressive_ptr,
 
 /* Function to be called when data becomes available */
 PNG_EXPORT(92, void, png_process_data, (png_structrp png_ptr,
-    png_inforp info_ptr, png_bytep buffer, png_size_t buffer_size));
+    png_inforp info_ptr, png_bytep buffer, size_t buffer_size));
 
 /* A function which may be called *only* within png_process_data to stop the
  * processing of any more data.  The function returns the number of bytes
@@ -1753,7 +1753,7 @@ PNG_EXPORT(92, void, png_process_data, (png_structrp png_ptr,
  * 'save' is set to true the routine will first save all the pending data and
  * will always return 0.
  */
-PNG_EXPORT(219, png_size_t, png_process_data_pause, (png_structrp, int save));
+PNG_EXPORT(219, size_t, png_process_data_pause, (png_structrp, int save));
 
 /* A function which may be called *only* outside (after) a call to
  * png_process_data.  It returns the number of bytes of data to skip in the
@@ -1817,7 +1817,8 @@ PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr,
 #define PNG_FREE_PLTE 0x1000U
 #define PNG_FREE_TRNS 0x2000U
 #define PNG_FREE_TEXT 0x4000U
-#define PNG_FREE_ALL  0x7fffU
+#define PNG_FREE_EXIF 0x8000U /* Added at libpng-1.6.31 */
+#define PNG_FREE_ALL  0xffffU
 #define PNG_FREE_MUL  0x4220U /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */
 
 #ifdef PNG_USER_MEM_SUPPORTED
@@ -1897,7 +1898,7 @@ PNG_EXPORT(110, png_uint_32, png_get_valid, (png_const_structrp png_ptr,
     png_const_inforp info_ptr, png_uint_32 flag));
 
 /* Returns number of bytes needed to hold a transformed row. */
-PNG_EXPORT(111, png_size_t, png_get_rowbytes, (png_const_structrp png_ptr,
+PNG_EXPORT(111, size_t, png_get_rowbytes, (png_const_structrp png_ptr,
     png_const_inforp info_ptr));
 
 #ifdef PNG_INFO_IMAGE_SUPPORTED
@@ -2036,6 +2037,18 @@ PNG_FIXED_EXPORT(233, void, png_set_cHRM_XYZ_fixed, (png_const_structrp png_ptr,
     png_fixed_point int_blue_Z))
 #endif
 
+#ifdef PNG_eXIf_SUPPORTED
+PNG_EXPORT(246, png_uint_32, png_get_eXIf, (png_const_structrp png_ptr,
+    png_inforp info_ptr, png_bytep *exif));
+PNG_EXPORT(247, void, png_set_eXIf, (png_const_structrp png_ptr,
+    png_inforp info_ptr, const png_bytep exif));
+
+PNG_EXPORT(248, png_uint_32, png_get_eXIf_1, (png_const_structrp png_ptr,
+    png_const_inforp info_ptr, png_uint_32 *num_exif, png_bytep *exif));
+PNG_EXPORT(249, void, png_set_eXIf_1, (png_const_structrp png_ptr,
+    png_inforp info_ptr, const png_uint_32 num_exif, const png_bytep exif));
+#endif
+
 #ifdef PNG_gAMA_SUPPORTED
 PNG_FP_EXPORT(137, png_uint_32, png_get_gAMA, (png_const_structrp png_ptr,
     png_const_inforp info_ptr, double *file_gamma))
@@ -2054,9 +2067,6 @@ PNG_FIXED_EXPORT(140, void, png_set_gAMA_fixed, (png_const_structrp png_ptr,
 #ifdef PNG_hIST_SUPPORTED
 PNG_EXPORT(141, png_uint_32, png_get_hIST, (png_const_structrp png_ptr,
     png_inforp info_ptr, png_uint_16p *hist));
-#endif
-
-#ifdef PNG_hIST_SUPPORTED
 PNG_EXPORT(142, void, png_set_hIST, (png_const_structrp png_ptr,
     png_inforp info_ptr, png_const_uint_16p hist));
 #endif
@@ -2257,7 +2267,7 @@ PNG_EXPORT(171, void, png_set_sCAL_s, (png_const_structrp png_ptr,
  * to specifying "NEVER", however when "AS_DEFAULT" is used for specific chunks
  * it simply resets the behavior to the libpng default.
  *
- * INTERACTION WTIH USER CHUNK CALLBACKS:
+ * INTERACTION WITH USER CHUNK CALLBACKS:
  * The per-chunk handling is always used when there is a png_user_chunk_ptr
  * callback and the callback returns 0; the chunk is then always stored *unless*
  * it is critical and the per-chunk setting is other than ALWAYS.  Notice that
@@ -2676,7 +2686,7 @@ PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr,
  * The simplified API hides the details of both libpng and the PNG file format
  * itself.  It allows PNG files to be read into a very limited number of
  * in-memory bitmap formats or to be written from the same formats.  If these
- * formats do not accomodate your needs then you can, and should, use the more
+ * formats do not accommodate your needs then you can, and should, use the more
  * sophisticated APIs above - these support a wide variety of in-memory formats
  * and a wide variety of sophisticated transformations to those formats as well
  * as a wide variety of APIs to manipulate ancillary information.
@@ -2782,7 +2792,7 @@ typedef struct
  *
  * When the simplified API needs to convert between sRGB and linear colorspaces,
  * the actual sRGB transfer curve defined in the sRGB specification (see the
- * article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
+ * article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2
  * approximation used elsewhere in libpng.
  *
  * When an alpha channel is present it is expected to denote pixel coverage
@@ -2837,6 +2847,8 @@ typedef struct
 #  define PNG_FORMAT_FLAG_AFIRST 0x20U /* alpha channel comes first */
 #endif
 
+#define PNG_FORMAT_FLAG_ASSOCIATED_ALPHA 0x40U /* alpha channel is associated */
+
 /* Commonly used formats have predefined macros.
  *
  * First the single byte (sRGB) formats:
@@ -3036,7 +3048,7 @@ PNG_EXPORT(235, int, png_image_begin_read_from_stdio, (png_imagep image,
 #endif /* STDIO */
 
 PNG_EXPORT(236, int, png_image_begin_read_from_memory, (png_imagep image,
-   png_const_voidp memory, png_size_t size));
+   png_const_voidp memory, size_t size));
    /* The PNG header is read from the given memory buffer. */
 
 PNG_EXPORT(237, int, png_image_finish_read, (png_imagep image,
@@ -3149,7 +3161,7 @@ PNG_EXPORT(245, int, png_image_write_to_memory, (png_imagep image, void *memory,
     * than or equal to the original value.
     *
     * If the function returns false and *memory_bytes was not changed an error
-    * occured during write.  If *memory_bytes was changed, or is not 0 if
+    * occurred during write.  If *memory_bytes was changed, or is not 0 if
     * 'memory' was NULL, the write would have succeeded but for the memory
     * buffer being too small.  *memory_bytes contains the required number of
     * bytes and will be bigger that the original value.
@@ -3233,7 +3245,7 @@ PNG_EXPORT(245, int, png_image_write_to_memory, (png_imagep image, void *memory,
  * option and 'onoff' is 0 (off) or non-0 (on).  The value returned is given
  * by the PNG_OPTION_ defines below.
  *
- * HARDWARE: normally hardware capabilites, such as the Intel SSE instructions,
+ * HARDWARE: normally hardware capabilities, such as the Intel SSE instructions,
  *           are detected at run time, however sometimes it may be impossible
  *           to do this in user mode, in which case it is necessary to discover
  *           the capabilities in an OS specific way.  Such capabilities are
@@ -3255,7 +3267,10 @@ PNG_EXPORT(245, int, png_image_write_to_memory, (png_imagep image, void *memory,
 #  define PNG_MIPS_MSA   6 /* HARDWARE: MIPS Msa SIMD instructions supported */
 #endif
 #define PNG_IGNORE_ADLER32 8
-#define PNG_OPTION_NEXT  10 /* Next option - numbers must be even */
+#ifdef PNG_POWERPC_VSX_API_SUPPORTED
+#  define PNG_POWERPC_VSX   10 /* HARDWARE: PowerPC VSX SIMD instructions supported */
+#endif
+#define PNG_OPTION_NEXT  12 /* Next option - numbers must be even */
 
 /* Return values: NOTE: there are four values and 'off' is *not* zero */
 #define PNG_OPTION_UNSET   0 /* Unset - defaults to off */
@@ -3279,7 +3294,7 @@ PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option,
  * one to use is one more than this.)
  */
 #ifdef PNG_EXPORT_LAST_ORDINAL
-  PNG_EXPORT_LAST_ORDINAL(245);
+  PNG_EXPORT_LAST_ORDINAL(249);
 #endif
 
 #ifdef __cplusplus

src/share/native/sun/awt/libpng/pngconf.h

@@ -29,9 +29,9 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * libpng version 1.6.28, January 5, 2017
+ * libpng version 1.6.35, July 15, 2018
  *
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2002,2004,2006-2016,2018 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.)
  *
@@ -155,7 +155,7 @@
  *
  * These cases only differ if the operating system does not use the C
  * calling convention, at present this just means the above cases
- * (x86 DOS/Windows sytems) and, even then, this does not apply to
+ * (x86 DOS/Windows systems) and, even then, this does not apply to
  * Cygwin running on those systems.
  *
  * Note that the value must be defined in pnglibconf.h so that what
@@ -543,8 +543,10 @@
 #  error "libpng requires an unsigned 32-bit (or more) type"
 #endif
 
-/* Prior to 1.6.0 it was possible to disable the use of size_t, 1.6.0, however,
- * requires an ISOC90 compiler and relies on consistent behavior of sizeof.
+/* Prior to 1.6.0, it was possible to disable the use of size_t and ptrdiff_t.
+ * From 1.6.0 onwards, an ISO C90 compiler, as well as a standard-compliant
+ * behavior of sizeof and ptrdiff_t are required.
+ * The legacy typedefs are provided here for backwards compatibility.
  */
 typedef size_t png_size_t;
 typedef ptrdiff_t png_ptrdiff_t;
@@ -565,13 +567,12 @@ typedef ptrdiff_t png_ptrdiff_t;
 #  endif
 #endif
 
-/* png_alloc_size_t is guaranteed to be no smaller than png_size_t, and no
- * smaller than png_uint_32.  Casts from png_size_t or png_uint_32 to
- * png_alloc_size_t are not necessary; in fact, it is recommended not to use
- * them at all so that the compiler can complain when something turns out to be
- * problematic.
+/* png_alloc_size_t is guaranteed to be no smaller than size_t, and no smaller
+ * than png_uint_32.  Casts from size_t or png_uint_32 to png_alloc_size_t are
+ * not necessary; in fact, it is recommended not to use them at all, so that
+ * the compiler can complain when something turns out to be problematic.
  *
- * Casts in the other direction (from png_alloc_size_t to png_size_t or
+ * Casts in the other direction (from png_alloc_size_t to size_t or
  * png_uint_32) should be explicitly applied; however, we do not expect to
  * encounter practical situations that require such conversions.
  *
@@ -581,7 +582,7 @@ typedef ptrdiff_t png_ptrdiff_t;
 #ifdef PNG_SMALL_SIZE_T
    typedef png_uint_32 png_alloc_size_t;
 #else
-   typedef png_size_t png_alloc_size_t;
+   typedef size_t png_alloc_size_t;
 #endif
 
 /* Prior to 1.6.0 libpng offered limited support for Microsoft C compiler
@@ -617,8 +618,8 @@ typedef char                  * png_charp;
 typedef const char            * png_const_charp;
 typedef png_fixed_point       * png_fixed_point_p;
 typedef const png_fixed_point * png_const_fixed_point_p;
-typedef png_size_t            * png_size_tp;
-typedef const png_size_t      * png_const_size_tp;
+typedef size_t                * png_size_tp;
+typedef const size_t          * png_const_size_tp;
 
 #ifdef PNG_STDIO_SUPPORTED
 typedef FILE            * png_FILE_p;

src/share/native/sun/awt/libpng/pngerror.c

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.26 [October 20, 2016]
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.31 [July 27, 2017]
+ * Copyright (c) 1998-2002,2004,2006-2017 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.)
  *
@@ -191,7 +191,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
          case PNG_NUMBER_FORMAT_02u:
             /* Expects at least 2 digits. */
             mincount = 2;
-            /* FALL THROUGH */
+            /* FALLTHROUGH */
 
          case PNG_NUMBER_FORMAT_u:
             *--end = digits[number % 10];
@@ -201,7 +201,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
          case PNG_NUMBER_FORMAT_02x:
             /* This format expects at least two digits */
             mincount = 2;
-            /* FALL THROUGH */
+            /* FALLTHROUGH */
 
          case PNG_NUMBER_FORMAT_x:
             *--end = digits[number & 0xf];

src/share/native/sun/awt/libpng/pngget.c

@@ -28,9 +28,9 @@
  * License version 2 only, as published by the Free Software Foundation.
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
-
- * Last changed in libpng 1.6.26 [October 20, 2016]
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ *
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -54,7 +54,7 @@ png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr,
    return(0);
 }
 
-png_size_t PNGAPI
+size_t PNGAPI
 png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr)
 {
    if (png_ptr != NULL && info_ptr != NULL)
@@ -395,7 +395,7 @@ png_get_y_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr)
 static png_fixed_point
 png_fixed_inches_from_microns(png_const_structrp png_ptr, png_int_32 microns)
 {
-   /* Convert from metres * 1,000,000 to inches * 100,000, meters to
+   /* Convert from meters * 1,000,000 to inches * 100,000, meters to
     * inches is simply *(100/2.54), so we want *(10/2.54) == 500/127.
     * Notice that this can overflow - a warning is output and 0 is
     * returned.
@@ -769,8 +769,7 @@ png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
 
    if (png_ptr != NULL && info_ptr != NULL &&
        (info_ptr->valid & PNG_INFO_iCCP) != 0 &&
-       name != NULL && compression_type != NULL && profile != NULL &&
-           proflen != NULL)
+       name != NULL && profile != NULL && proflen != NULL)
    {
       *name = info_ptr->iccp_name;
       *profile = info_ptr->iccp_profile;
@@ -778,11 +777,13 @@ png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
       /* This is somewhat irrelevant since the profile data returned has
        * actually been uncompressed.
        */
-      *compression_type = PNG_COMPRESSION_TYPE_BASE;
+      if (compression_type != NULL)
+         *compression_type = PNG_COMPRESSION_TYPE_BASE;
       return (PNG_INFO_iCCP);
    }
 
    return (0);
+
 }
 #endif
 
@@ -801,6 +802,35 @@ png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr,
 }
 #endif
 
+#ifdef PNG_eXIf_SUPPORTED
+png_uint_32 PNGAPI
+png_get_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
+    png_bytep *exif)
+{
+  png_warning(png_ptr, "png_get_eXIf does not work; use png_get_eXIf_1");
+  PNG_UNUSED(info_ptr)
+  PNG_UNUSED(exif)
+  return 0;
+}
+
+png_uint_32 PNGAPI
+png_get_eXIf_1(png_const_structrp png_ptr, png_const_inforp info_ptr,
+    png_uint_32 *num_exif, png_bytep *exif)
+{
+   png_debug1(1, "in %s retrieval function", "eXIf");
+
+   if (png_ptr != NULL && info_ptr != NULL &&
+       (info_ptr->valid & PNG_INFO_eXIf) != 0 && exif != NULL)
+   {
+      *num_exif = info_ptr->num_exif;
+      *exif = info_ptr->exif;
+      return (PNG_INFO_eXIf);
+   }
+
+   return (0);
+}
+#endif
+
 #ifdef PNG_hIST_SUPPORTED
 png_uint_32 PNGAPI
 png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr,
@@ -1163,7 +1193,7 @@ png_get_user_chunk_ptr(png_const_structrp png_ptr)
 }
 #endif
 
-png_size_t PNGAPI
+size_t PNGAPI
 png_get_compression_buffer_size(png_const_structrp png_ptr)
 {
    if (png_ptr == NULL)

src/share/native/sun/awt/libpng/pnginfo.h

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.1 [March 28, 2013]
- * Copyright (c) 1998-2002,2004,2006-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2013,2018 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.)
  *
@@ -83,10 +83,10 @@
 struct png_info_def
 {
    /* The following are necessary for every PNG file */
-   png_uint_32 width;  /* width of image in pixels (from IHDR) */
-   png_uint_32 height; /* height of image in pixels (from IHDR) */
-   png_uint_32 valid;  /* valid chunk data (see PNG_INFO_ below) */
-   png_size_t rowbytes; /* bytes needed to hold an untransformed row */
+   png_uint_32 width;       /* width of image in pixels (from IHDR) */
+   png_uint_32 height;      /* height of image in pixels (from IHDR) */
+   png_uint_32 valid;       /* valid chunk data (see PNG_INFO_ below) */
+   size_t rowbytes;         /* bytes needed to hold an untransformed row */
    png_colorp palette;      /* array of color values (valid & PNG_INFO_PLTE) */
    png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */
    png_uint_16 num_trans;   /* number of transparent palette color (tRNS) */
@@ -213,6 +213,14 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
    png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */
 #endif
 
+#ifdef PNG_eXIf_SUPPORTED
+   int num_exif;  /* Added at libpng-1.6.31 */
+   png_bytep exif;
+# ifdef PNG_READ_eXIf_SUPPORTED
+   png_bytep eXIf_buf;  /* Added at libpng-1.6.32 */
+# endif
+#endif
+
 #ifdef PNG_hIST_SUPPORTED
    /* The hIST chunk contains the relative frequency or importance of the
     * various palette entries, so that a viewer can intelligently select a
@@ -267,7 +275,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
    /* The sCAL chunk describes the actual physical dimensions of the
     * subject matter of the graphic.  The chunk contains a unit specification
     * a byte value, and two ASCII strings representing floating-point
-    * values.  The values are width and height corresponsing to one pixel
+    * values.  The values are width and height corresponding to one pixel
     * in the image.  Data values are valid if (valid & PNG_INFO_sCAL) is
     * non-zero.
     */

src/share/native/sun/awt/libpng/pnglibconf.h

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file and, per its terms, should not be removed:
+ *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
@@ -33,9 +38,9 @@
  * file and, per its terms, should not be removed:
  */
 
-/* libpng version 1.6.28, January 5, 2017 */
+/* libpng version 1.6.35, July 15, 2018 */
 
-/* Copyright (c) 1998-2016 Glenn Randers-Pehrson */
+/* Copyright (c) 1998-2018 Glenn Randers-Pehrson */
 
 /* This code is released under the libpng license. */
 /* For conditions of distribution and use, see the disclaimer */

src/share/native/sun/awt/libpng/pngpread.c

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.24 [August 4, 2016]
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -62,7 +62,7 @@ if (png_ptr->buffer_size < N) \
 
 void PNGAPI
 png_process_data(png_structrp png_ptr, png_inforp info_ptr,
-    png_bytep buffer, png_size_t buffer_size)
+    png_bytep buffer, size_t buffer_size)
 {
    if (png_ptr == NULL || info_ptr == NULL)
       return;
@@ -75,7 +75,7 @@ png_process_data(png_structrp png_ptr, png_inforp info_ptr,
    }
 }
 
-png_size_t PNGAPI
+size_t PNGAPI
 png_process_data_pause(png_structrp png_ptr, int save)
 {
    if (png_ptr != NULL)
@@ -88,7 +88,7 @@ png_process_data_pause(png_structrp png_ptr, int save)
       else
       {
          /* This includes any pending saved bytes: */
-         png_size_t remaining = png_ptr->buffer_size;
+         size_t remaining = png_ptr->buffer_size;
          png_ptr->buffer_size = 0;
 
          /* So subtract the saved buffer size, unless all the data
@@ -161,8 +161,8 @@ png_process_some_data(png_structrp png_ptr, png_inforp info_ptr)
 void /* PRIVATE */
 png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr)
 {
-   png_size_t num_checked = png_ptr->sig_bytes, /* SAFE, does not exceed 8 */
-       num_to_check = 8 - num_checked;
+   size_t num_checked = png_ptr->sig_bytes; /* SAFE, does not exceed 8 */
+   size_t num_to_check = 8 - num_checked;
 
    if (png_ptr->buffer_size < num_to_check)
    {
@@ -217,6 +217,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
       png_crc_read(png_ptr, chunk_tag, 4);
       png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag);
       png_check_chunk_name(png_ptr, png_ptr->chunk_name);
+      png_check_chunk_length(png_ptr, png_ptr->push_length);
       png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
    }
 
@@ -445,7 +446,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
 }
 
 void PNGCBAPI
-png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
+png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, size_t length)
 {
    png_bytep ptr;
 
@@ -455,7 +456,7 @@ png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
    ptr = buffer;
    if (png_ptr->save_buffer_size != 0)
    {
-      png_size_t save_size;
+      size_t save_size;
 
       if (length < png_ptr->save_buffer_size)
          save_size = length;
@@ -472,7 +473,7 @@ png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
    }
    if (length != 0 && png_ptr->current_buffer_size != 0)
    {
-      png_size_t save_size;
+      size_t save_size;
 
       if (length < png_ptr->current_buffer_size)
          save_size = length;
@@ -494,7 +495,7 @@ png_push_save_buffer(png_structrp png_ptr)
    {
       if (png_ptr->save_buffer_ptr != png_ptr->save_buffer)
       {
-         png_size_t i, istop;
+         size_t i, istop;
          png_bytep sp;
          png_bytep dp;
 
@@ -509,7 +510,7 @@ png_push_save_buffer(png_structrp png_ptr)
    if (png_ptr->save_buffer_size + png_ptr->current_buffer_size >
        png_ptr->save_buffer_max)
    {
-      png_size_t new_max;
+      size_t new_max;
       png_bytep old_buffer;
 
       if (png_ptr->save_buffer_size > PNG_SIZE_MAX -
@@ -521,7 +522,7 @@ png_push_save_buffer(png_structrp png_ptr)
       new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256;
       old_buffer = png_ptr->save_buffer;
       png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr,
-          (png_size_t)new_max);
+          (size_t)new_max);
 
       if (png_ptr->save_buffer == NULL)
       {
@@ -549,7 +550,7 @@ png_push_save_buffer(png_structrp png_ptr)
 
 void /* PRIVATE */
 png_push_restore_buffer(png_structrp png_ptr, png_bytep buffer,
-    png_size_t buffer_length)
+    size_t buffer_length)
 {
    png_ptr->current_buffer = buffer;
    png_ptr->current_buffer_size = buffer_length;
@@ -589,7 +590,7 @@ png_push_read_IDAT(png_structrp png_ptr)
 
    if (png_ptr->idat_size != 0 && png_ptr->save_buffer_size != 0)
    {
-      png_size_t save_size = png_ptr->save_buffer_size;
+      size_t save_size = png_ptr->save_buffer_size;
       png_uint_32 idat_size = png_ptr->idat_size;
 
       /* We want the smaller of 'idat_size' and 'current_buffer_size', but they
@@ -599,7 +600,7 @@ png_push_read_IDAT(png_structrp png_ptr)
        * will break on either 16-bit or 64-bit platforms.
        */
       if (idat_size < save_size)
-         save_size = (png_size_t)idat_size;
+         save_size = (size_t)idat_size;
 
       else
          idat_size = (png_uint_32)save_size;
@@ -616,7 +617,7 @@ png_push_read_IDAT(png_structrp png_ptr)
 
    if (png_ptr->idat_size != 0 && png_ptr->current_buffer_size != 0)
    {
-      png_size_t save_size = png_ptr->current_buffer_size;
+      size_t save_size = png_ptr->current_buffer_size;
       png_uint_32 idat_size = png_ptr->idat_size;
 
       /* We want the smaller of 'idat_size' and 'current_buffer_size', but they
@@ -625,7 +626,7 @@ png_push_read_IDAT(png_structrp png_ptr)
        * larger - this cannot overflow.
        */
       if (idat_size < save_size)
-         save_size = (png_size_t)idat_size;
+         save_size = (size_t)idat_size;
 
       else
          idat_size = (png_uint_32)save_size;
@@ -652,7 +653,7 @@ png_push_read_IDAT(png_structrp png_ptr)
 
 void /* PRIVATE */
 png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer,
-    png_size_t buffer_length)
+    size_t buffer_length)
 {
    /* The caller checks for a non-zero buffer length. */
    if (!(buffer_length > 0) || buffer == NULL)

src/share/native/sun/awt/libpng/pngpriv.h

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.26 [October 20, 2016]
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -63,7 +63,9 @@
  * Windows/Visual Studio) there is no effect; the OS specific tests below are
  * still required (as of 2011-05-02.)
  */
-#define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */
+#ifndef _POSIX_SOURCE
+# define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */
+#endif
 
 #ifndef PNG_VERSION_INFO_ONLY
 /* Standard library headers not required by png.h: */
@@ -218,6 +220,56 @@
 #  endif
 #endif
 
+#ifndef PNG_POWERPC_VSX_OPT
+#  if defined(__PPC64__) && defined(__ALTIVEC__) && defined(__VSX__)
+#     define PNG_POWERPC_VSX_OPT 2
+#  else
+#     define PNG_POWERPC_VSX_OPT 0
+#  endif
+#endif
+
+#ifndef PNG_INTEL_SSE_OPT
+#   ifdef PNG_INTEL_SSE
+      /* Only check for SSE if the build configuration has been modified to
+       * enable SSE optimizations.  This means that these optimizations will
+       * be off by default.  See contrib/intel for more details.
+       */
+#     if defined(__SSE4_1__) || defined(__AVX__) || defined(__SSSE3__) || \
+       defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) || \
+       (defined(_M_IX86_FP) && _M_IX86_FP >= 2)
+#         define PNG_INTEL_SSE_OPT 1
+#      else
+#         define PNG_INTEL_SSE_OPT 0
+#      endif
+#   else
+#      define PNG_INTEL_SSE_OPT 0
+#   endif
+#endif
+
+#if PNG_INTEL_SSE_OPT > 0
+#   ifndef PNG_INTEL_SSE_IMPLEMENTATION
+#      if defined(__SSE4_1__) || defined(__AVX__)
+          /* We are not actually using AVX, but checking for AVX is the best
+             way we can detect SSE4.1 and SSSE3 on MSVC.
+          */
+#         define PNG_INTEL_SSE_IMPLEMENTATION 3
+#      elif defined(__SSSE3__)
+#         define PNG_INTEL_SSE_IMPLEMENTATION 2
+#      elif defined(__SSE2__) || defined(_M_X64) || defined(_M_AMD64) || \
+       (defined(_M_IX86_FP) && _M_IX86_FP >= 2)
+#         define PNG_INTEL_SSE_IMPLEMENTATION 1
+#      else
+#         define PNG_INTEL_SSE_IMPLEMENTATION 0
+#      endif
+#   endif
+
+#   if PNG_INTEL_SSE_IMPLEMENTATION > 0
+#      define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_sse2
+#   endif
+#else
+#   define PNG_INTEL_SSE_IMPLEMENTATION 0
+#endif
+
 #if PNG_MIPS_MSA_OPT > 0
 #  define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_msa
 #  ifndef PNG_MIPS_MSA_IMPLEMENTATION
@@ -238,6 +290,13 @@
 #  endif
 #endif /* PNG_MIPS_MSA_OPT > 0 */
 
+#ifdef PNG_POWERPC_VSX_API_SUPPORTED
+#if PNG_POWERPC_VSX_OPT > 0
+#  define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_vsx
+#  define PNG_POWERPC_VSX_IMPLEMENTATION 1
+#endif
+#endif
+
 
 /* Is this a build of a DLL where compilation of the object modules requires
  * different preprocessor settings to those required for a simple library?  If
@@ -431,6 +490,21 @@
 #  define png_fixed_error(s1,s2) png_err(s1)
 #endif
 
+/* Some fixed point APIs are still required even if not exported because
+ * they get used by the corresponding floating point APIs.  This magic
+ * deals with this:
+ */
+#ifdef PNG_FIXED_POINT_SUPPORTED
+#  define PNGFAPI PNGAPI
+#else
+#  define PNGFAPI /* PRIVATE */
+#endif
+
+#ifndef PNG_VERSION_INFO_ONLY
+/* Other defines specific to compilers can go here.  Try to keep
+ * them inside an appropriate ifdef/endif pair for portability.
+ */
+
 /* C allows up-casts from (void*) to any pointer and (const void*) to any
  * pointer to a const object.  C++ regards this as a type error and requires an
  * explicit, static, cast and provides the static_cast<> rune to ensure that
@@ -445,25 +519,20 @@
    static_cast<type>(static_cast<const void*>(value))
 #else
 #  define png_voidcast(type, value) (value)
-#  define png_constcast(type, value) ((type)(value))
+#  ifdef _WIN64
+#     ifdef __GNUC__
+         typedef unsigned long long png_ptruint;
+#     else
+         typedef unsigned __int64 png_ptruint;
+#     endif
+#  else
+      typedef unsigned long png_ptruint;
+#  endif
+#  define png_constcast(type, value) ((type)(png_ptruint)(const void*)(value))
 #  define png_aligncast(type, value) ((void*)(value))
 #  define png_aligncastconst(type, value) ((const void*)(value))
 #endif /* __cplusplus */
 
-/* Some fixed point APIs are still required even if not exported because
- * they get used by the corresponding floating point APIs.  This magic
- * deals with this:
- */
-#ifdef PNG_FIXED_POINT_SUPPORTED
-#  define PNGFAPI PNGAPI
-#else
-#  define PNGFAPI /* PRIVATE */
-#endif
-
-#ifndef PNG_VERSION_INFO_ONLY
-/* Other defines specific to compilers can go here.  Try to keep
- * them inside an appropriate ifdef/endif pair for portability.
- */
 #if defined(PNG_FLOATING_POINT_SUPPORTED) ||\
     defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)
    /* png.c requires the following ANSI-C constants if the conversion of
@@ -695,8 +764,8 @@
 /* Added to libpng-1.2.6 JB */
 #define PNG_ROWBYTES(pixel_bits, width) \
     ((pixel_bits) >= 8 ? \
-    ((png_size_t)(width) * (((png_size_t)(pixel_bits)) >> 3)) : \
-    (( ((png_size_t)(width) * ((png_size_t)(pixel_bits))) + 7) >> 3) )
+    ((size_t)(width) * (((size_t)(pixel_bits)) >> 3)) : \
+    (( ((size_t)(width) * ((size_t)(pixel_bits))) + 7) >> 3) )
 
 /* This returns the number of trailing bits in the last byte of a row, 0 if the
  * last byte is completely full of pixels.  It is, in principle, (pixel_bits x
@@ -809,6 +878,7 @@
 #define png_PLTE PNG_U32( 80,  76,  84,  69)
 #define png_bKGD PNG_U32( 98,  75,  71,  68)
 #define png_cHRM PNG_U32( 99,  72,  82,  77)
+#define png_eXIf PNG_U32(101,  88,  73, 102) /* registered July 2017 */
 #define png_fRAc PNG_U32(102,  82,  65,  99) /* registered, not defined */
 #define png_gAMA PNG_U32(103,  65,  77,  65)
 #define png_gIFg PNG_U32(103,  73,  70, 103)
@@ -883,7 +953,7 @@
     * PNG files the -I directives must match.
     *
     * The most likely explanation is that you passed a -I in CFLAGS. This will
-    * not work; all the preprocessor directories and in particular all the -I
+    * not work; all the preprocessor directives and in particular all the -I
     * directives must be in CPPFLAGS.
     */
 #endif
@@ -1012,15 +1082,15 @@ PNG_INTERNAL_FUNCTION(void,png_zfree,(voidpf png_ptr, voidpf ptr),PNG_EMPTY);
  */
 
 PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_read_data,(png_structp png_ptr,
-    png_bytep data, png_size_t length),PNG_EMPTY);
+    png_bytep data, size_t length),PNG_EMPTY);
 
 #ifdef PNG_PROGRESSIVE_READ_SUPPORTED
 PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_push_fill_buffer,(png_structp png_ptr,
-    png_bytep buffer, png_size_t length),PNG_EMPTY);
+    png_bytep buffer, size_t length),PNG_EMPTY);
 #endif
 
 PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_write_data,(png_structp png_ptr,
-    png_bytep data, png_size_t length),PNG_EMPTY);
+    png_bytep data, size_t length),PNG_EMPTY);
 
 #ifdef PNG_WRITE_FLUSH_SUPPORTED
 #  ifdef PNG_STDIO_SUPPORTED
@@ -1034,7 +1104,7 @@ PNG_INTERNAL_FUNCTION(void,png_reset_crc,(png_structrp png_ptr),PNG_EMPTY);
 
 /* Write the "data" buffer to whatever output you are using */
 PNG_INTERNAL_FUNCTION(void,png_write_data,(png_structrp png_ptr,
-    png_const_bytep data, png_size_t length),PNG_EMPTY);
+    png_const_bytep data, size_t length),PNG_EMPTY);
 
 /* Read and check the PNG file signature */
 PNG_INTERNAL_FUNCTION(void,png_read_sig,(png_structrp png_ptr,
@@ -1046,7 +1116,7 @@ PNG_INTERNAL_FUNCTION(png_uint_32,png_read_chunk_header,(png_structrp png_ptr),
 
 /* Read data from whatever input you are using into the "data" buffer */
 PNG_INTERNAL_FUNCTION(void,png_read_data,(png_structrp png_ptr, png_bytep data,
-    png_size_t length),PNG_EMPTY);
+    size_t length),PNG_EMPTY);
 
 /* Read bytes into buf, and update png_ptr->crc */
 PNG_INTERNAL_FUNCTION(void,png_crc_read,(png_structrp png_ptr, png_bytep buf,
@@ -1064,7 +1134,7 @@ PNG_INTERNAL_FUNCTION(int,png_crc_error,(png_structrp png_ptr),PNG_EMPTY);
  * since this is the maximum buffer size we can specify.
  */
 PNG_INTERNAL_FUNCTION(void,png_calculate_crc,(png_structrp png_ptr,
-   png_const_bytep ptr, png_size_t length),PNG_EMPTY);
+   png_const_bytep ptr, size_t length),PNG_EMPTY);
 
 #ifdef PNG_WRITE_FLUSH_SUPPORTED
 PNG_INTERNAL_FUNCTION(void,png_flush,(png_structrp png_ptr),PNG_EMPTY);
@@ -1109,6 +1179,11 @@ PNG_INTERNAL_FUNCTION(void,png_write_sRGB,(png_structrp png_ptr,
     int intent),PNG_EMPTY);
 #endif
 
+#ifdef PNG_WRITE_eXIf_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_write_eXIf,(png_structrp png_ptr,
+    png_bytep exif, int num_exif),PNG_EMPTY);
+#endif
+
 #ifdef PNG_WRITE_iCCP_SUPPORTED
 PNG_INTERNAL_FUNCTION(void,png_write_iCCP,(png_structrp png_ptr,
    png_const_charp name, png_const_bytep profile), PNG_EMPTY);
@@ -1142,7 +1217,7 @@ PNG_INTERNAL_FUNCTION(void,png_write_hIST,(png_structrp png_ptr,
 /* Chunks that have keywords */
 #ifdef PNG_WRITE_tEXt_SUPPORTED
 PNG_INTERNAL_FUNCTION(void,png_write_tEXt,(png_structrp png_ptr,
-   png_const_charp key, png_const_charp text, png_size_t text_len),PNG_EMPTY);
+   png_const_charp key, png_const_charp text, size_t text_len),PNG_EMPTY);
 #endif
 
 #ifdef PNG_WRITE_zTXt_SUPPORTED
@@ -1284,6 +1359,38 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_msa,(png_row_infop
     row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
 #endif
 
+#if PNG_POWERPC_VSX_OPT > 0
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_vsx,(png_row_infop row_info,
+    png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_vsx,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_vsx,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_vsx,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_vsx,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_vsx,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_vsx,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+#endif
+
+#if PNG_INTEL_SSE_IMPLEMENTATION > 0
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_sse2,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_sse2,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_sse2,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_sse2,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_sse2,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_sse2,(png_row_infop
+    row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
+#endif
+
 /* Choose the best filter to use and filter the row data */
 PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr,
     png_row_infop row_info),PNG_EMPTY);
@@ -1376,6 +1483,11 @@ PNG_INTERNAL_FUNCTION(void,png_handle_cHRM,(png_structrp png_ptr,
     png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
 #endif
 
+#ifdef PNG_READ_eXIf_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_handle_eXIf,(png_structrp png_ptr,
+    png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
+#endif
+
 #ifdef PNG_READ_gAMA_SUPPORTED
 PNG_INTERNAL_FUNCTION(void,png_handle_gAMA,(png_structrp png_ptr,
     png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
@@ -1451,8 +1563,11 @@ PNG_INTERNAL_FUNCTION(void,png_handle_zTXt,(png_structrp png_ptr,
     png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
 #endif
 
-PNG_INTERNAL_FUNCTION(void,png_check_chunk_name,(png_structrp png_ptr,
-    png_uint_32 chunk_name),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_check_chunk_name,(png_const_structrp png_ptr,
+    const png_uint_32 chunk_name),PNG_EMPTY);
+
+PNG_INTERNAL_FUNCTION(void,png_check_chunk_length,(png_const_structrp png_ptr,
+    const png_uint_32 chunk_length),PNG_EMPTY);
 
 PNG_INTERNAL_FUNCTION(void,png_handle_unknown,(png_structrp png_ptr,
     png_inforp info_ptr, png_uint_32 length, int keep),PNG_EMPTY);
@@ -1495,10 +1610,10 @@ PNG_INTERNAL_FUNCTION(void,png_push_check_crc,(png_structrp png_ptr),PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(void,png_push_save_buffer,(png_structrp png_ptr),
     PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(void,png_push_restore_buffer,(png_structrp png_ptr,
-    png_bytep buffer, png_size_t buffer_length),PNG_EMPTY);
+    png_bytep buffer, size_t buffer_length),PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(void,png_push_read_IDAT,(png_structrp png_ptr),PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(void,png_process_IDAT_data,(png_structrp png_ptr,
-    png_bytep buffer, png_size_t buffer_length),PNG_EMPTY);
+    png_bytep buffer, size_t buffer_length),PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(void,png_push_process_row,(png_structrp png_ptr),
     PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(void,png_push_handle_unknown,(png_structrp png_ptr,
@@ -1768,13 +1883,13 @@ PNG_INTERNAL_FUNCTION(void,png_chunk_report,(png_const_structrp png_ptr,
 
 #ifdef PNG_FLOATING_POINT_SUPPORTED
 PNG_INTERNAL_FUNCTION(void,png_ascii_from_fp,(png_const_structrp png_ptr,
-   png_charp ascii, png_size_t size, double fp, unsigned int precision),
+   png_charp ascii, size_t size, double fp, unsigned int precision),
    PNG_EMPTY);
 #endif /* FLOATING_POINT */
 
 #ifdef PNG_FIXED_POINT_SUPPORTED
 PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
-   png_charp ascii, png_size_t size, png_fixed_point fp),PNG_EMPTY);
+   png_charp ascii, size_t size, png_fixed_point fp),PNG_EMPTY);
 #endif /* FIXED_POINT */
 #endif /* sCAL */
 
@@ -1867,7 +1982,7 @@ PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr,
  * the problem character.)  This has not been tested within libpng.
  */
 PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string,
-   png_size_t size, int *statep, png_size_tp whereami),PNG_EMPTY);
+   size_t size, int *statep, png_size_tp whereami),PNG_EMPTY);
 
 /* This is the same but it checks a complete string and returns true
  * only if it just contains a floating point number.  As of 1.5.4 this
@@ -1876,7 +1991,7 @@ PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string,
  * for negative or zero values using the sticky flag.
  */
 PNG_INTERNAL_FUNCTION(int,png_check_fp_string,(png_const_charp string,
-   png_size_t size),PNG_EMPTY);
+   size_t size),PNG_EMPTY);
 #endif /* pCAL || sCAL */
 
 #if defined(PNG_GAMMA_SUPPORTED) ||\
@@ -1951,7 +2066,7 @@ typedef struct png_control
    png_voidp   error_buf;           /* Always a jmp_buf at present. */
 
    png_const_bytep memory;          /* Memory buffer. */
-   png_size_t      size;            /* Size of the memory buffer. */
+   size_t          size;            /* Size of the memory buffer. */
 
    unsigned int for_write       :1; /* Otherwise it is a read structure */
    unsigned int owned_file      :1; /* We own the file in io_ptr */
@@ -2019,6 +2134,11 @@ PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon,
 PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa,
    (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
 #endif
+
+#  if PNG_INTEL_SSE_IMPLEMENTATION > 0
+PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2,
+   (png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
+#  endif
 #endif
 
 PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr,

src/share/native/sun/awt/libpng/pngread.c

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.26 [October 20, 2016]
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -203,6 +203,11 @@ png_read_info(png_structrp png_ptr, png_inforp info_ptr)
          png_handle_cHRM(png_ptr, info_ptr, length);
 #endif
 
+#ifdef PNG_READ_eXIf_SUPPORTED
+      else if (chunk_name == png_eXIf)
+         png_handle_eXIf(png_ptr, info_ptr, length);
+#endif
+
 #ifdef PNG_READ_gAMA_SUPPORTED
       else if (chunk_name == png_gAMA)
          png_handle_gAMA(png_ptr, info_ptr, length);
@@ -562,6 +567,7 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row)
       png_error(png_ptr, "Invalid attempt to read row data");
 
    /* Fill the row with IDAT data: */
+   png_ptr->row_buf[0]=255; /* to force error if no data was found */
    png_read_IDAT_data(png_ptr, png_ptr->row_buf, row_info.rowbytes + 1);
 
    if (png_ptr->row_buf[0] > PNG_FILTER_VALUE_NONE)
@@ -870,6 +876,11 @@ png_read_end(png_structrp png_ptr, png_inforp info_ptr)
          png_handle_cHRM(png_ptr, info_ptr, length);
 #endif
 
+#ifdef PNG_READ_eXIf_SUPPORTED
+      else if (chunk_name == png_eXIf)
+         png_handle_eXIf(png_ptr, info_ptr, length);
+#endif
+
 #ifdef PNG_READ_gAMA_SUPPORTED
       else if (chunk_name == png_gAMA)
          png_handle_gAMA(png_ptr, info_ptr, length);
@@ -1549,7 +1560,7 @@ png_image_begin_read_from_file(png_imagep image, const char *file_name)
 #endif /* STDIO */
 
 static void PNGCBAPI
-png_image_memory_read(png_structp png_ptr, png_bytep out, png_size_t need)
+png_image_memory_read(png_structp png_ptr, png_bytep out, size_t need)
 {
    if (png_ptr != NULL)
    {
@@ -1560,7 +1571,7 @@ png_image_memory_read(png_structp png_ptr, png_bytep out, png_size_t need)
          if (cp != NULL)
          {
             png_const_bytep memory = cp->memory;
-            png_size_t size = cp->size;
+            size_t size = cp->size;
 
             if (memory != NULL && size >= need)
             {
@@ -1579,7 +1590,7 @@ png_image_memory_read(png_structp png_ptr, png_bytep out, png_size_t need)
 }
 
 int PNGAPI png_image_begin_read_from_memory(png_imagep image,
-    png_const_voidp memory, png_size_t size)
+    png_const_voidp memory, size_t size)
 {
    if (image != NULL && image->version == PNG_IMAGE_VERSION)
    {
@@ -1911,7 +1922,7 @@ png_create_colormap_entry(png_image_read_control *display,
          {
             case 4:
                entry[afirst ? 0 : 3] = (png_uint_16)alpha;
-               /* FALL THROUGH */
+               /* FALLTHROUGH */
 
             case 3:
                if (alpha < 65535)
@@ -1933,7 +1944,7 @@ png_create_colormap_entry(png_image_read_control *display,
 
             case 2:
                entry[1 ^ afirst] = (png_uint_16)alpha;
-               /* FALL THROUGH */
+               /* FALLTHROUGH */
 
             case 1:
                if (alpha < 65535)
@@ -1962,6 +1973,7 @@ png_create_colormap_entry(png_image_read_control *display,
          {
             case 4:
                entry[afirst ? 0 : 3] = (png_byte)alpha;
+               /* FALLTHROUGH */
             case 3:
                entry[afirst + (2 ^ bgr)] = (png_byte)blue;
                entry[afirst + 1] = (png_byte)green;
@@ -1970,6 +1982,7 @@ png_create_colormap_entry(png_image_read_control *display,
 
             case 2:
                entry[1 ^ afirst] = (png_byte)alpha;
+               /* FALLTHROUGH */
             case 1:
                entry[afirst] = (png_byte)green;
                break;
@@ -2889,7 +2902,7 @@ png_image_read_colormap(png_voidp argument)
       case P_sRGB:
          /* Change to 8-bit sRGB */
          png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, PNG_GAMMA_sRGB);
-         /* FALL THROUGH */
+         /* FALLTHROUGH */
 
       case P_FILE:
          if (png_ptr->bit_depth > 8)
@@ -3207,8 +3220,7 @@ png_image_read_colormapped(png_voidp argument)
             image->colormap_entries == 244 /* 216 + 1 + 27 */)
             break;
 
-         /* goto bad_output; */
-         /* FALL THROUGH */
+         goto bad_output;
 
       default:
       bad_output:
@@ -3776,6 +3788,12 @@ png_image_read_direct(png_voidp argument)
          output_gamma = PNG_DEFAULT_sRGB;
       }
 
+      if ((change & PNG_FORMAT_FLAG_ASSOCIATED_ALPHA) != 0)
+      {
+         mode = PNG_ALPHA_OPTIMIZED;
+         change &= ~PNG_FORMAT_FLAG_ASSOCIATED_ALPHA;
+      }
+
       /* If 'do_local_background' is set check for the presence of gamma
        * correction; this is part of the work-round for the libpng bug
        * described above.
@@ -4001,6 +4019,10 @@ png_image_read_direct(png_voidp argument)
       else if (do_local_compose != 0) /* internal error */
          png_error(png_ptr, "png_image_read: alpha channel lost");
 
+      if ((format & PNG_FORMAT_FLAG_ASSOCIATED_ALPHA) != 0) {
+         info_format |= PNG_FORMAT_FLAG_ASSOCIATED_ALPHA;
+      }
+
       if (info_ptr->bit_depth == 16)
          info_format |= PNG_FORMAT_FLAG_LINEAR;
 
@@ -4156,7 +4178,7 @@ png_image_finish_read(png_imagep image, png_const_colorp background,
              *
              * NOTE: this will be changed in 1.7 because PNG_IMAGE_BUFFER_SIZE
              * will be changed to use png_alloc_size_t; bigger images can be
-             * accomodated on 64-bit systems.
+             * accommodated on 64-bit systems.
              */
             if (image->height <=
                 0xffffffffU/PNG_IMAGE_PIXEL_COMPONENT_SIZE(image->format)/check)

src/share/native/sun/awt/libpng/pngrio.c

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.24 [August 4, 2016]
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2016,2018 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.)
  *
@@ -57,7 +57,7 @@
  * to read more than 64K on a 16-bit machine.
  */
 void /* PRIVATE */
-png_read_data(png_structrp png_ptr, png_bytep data, png_size_t length)
+png_read_data(png_structrp png_ptr, png_bytep data, size_t length)
 {
    png_debug1(4, "reading %d bytes", (int)length);
 
@@ -75,14 +75,14 @@ png_read_data(png_structrp png_ptr, png_bytep data, png_size_t length)
  * than changing the library.
  */
 void PNGCBAPI
-png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
+png_default_read_data(png_structp png_ptr, png_bytep data, size_t length)
 {
-   png_size_t check;
+   size_t check;
 
    if (png_ptr == NULL)
       return;
 
-   /* fread() returns 0 on error, so it is OK to store this in a png_size_t
+   /* fread() returns 0 on error, so it is OK to store this in a size_t
     * instead of an int, which is what fread() actually returns.
     */
    check = fread(data, 1, length, png_voidcast(png_FILE_p, png_ptr->io_ptr));

src/share/native/sun/awt/libpng/pngrtran.c

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.24 [August 4, 2016]
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -77,6 +77,7 @@ png_set_crc_action(png_structrp png_ptr, int crit_action, int ancil_action)
       case PNG_CRC_WARN_DISCARD:    /* Not a valid action for critical data */
          png_warning(png_ptr,
              "Can't discard critical data on CRC error");
+         /* FALLTHROUGH */
       case PNG_CRC_ERROR_QUIT:                                /* Error/quit */
 
       case PNG_CRC_DEFAULT:
@@ -319,7 +320,7 @@ png_set_alpha_mode_fixed(png_structrp png_ptr, int mode,
     * who use the inverse of the gamma value accidentally!  Since some of these
     * values are reasonable this may have to be changed:
     *
-    * 1.6.x: changed from 0.07..3 to 0.01..100 (to accomodate the optimal 16-bit
+    * 1.6.x: changed from 0.07..3 to 0.01..100 (to accommodate the optimal 16-bit
     * gamma of 36, and its reciprocal.)
     */
    if (output_gamma < 1000 || output_gamma > 10000000)
@@ -457,7 +458,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
       int i;
 
       png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr,
-          (png_uint_32)((png_uint_32)num_palette * (sizeof (png_byte))));
+          (png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte))));
       for (i = 0; i < num_palette; i++)
          png_ptr->quantize_index[i] = (png_byte)i;
    }
@@ -474,7 +475,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
 
          /* Initialize an array to sort colors */
          png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr,
-             (png_uint_32)((png_uint_32)num_palette * (sizeof (png_byte))));
+             (png_alloc_size_t)((png_uint_32)num_palette * (sizeof (png_byte))));
 
          /* Initialize the quantize_sort array */
          for (i = 0; i < num_palette; i++)
@@ -608,9 +609,11 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
 
          /* Initialize palette index arrays */
          png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr,
-             (png_uint_32)((png_uint_32)num_palette * (sizeof (png_byte))));
+             (png_alloc_size_t)((png_uint_32)num_palette *
+             (sizeof (png_byte))));
          png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr,
-             (png_uint_32)((png_uint_32)num_palette * (sizeof (png_byte))));
+             (png_alloc_size_t)((png_uint_32)num_palette *
+             (sizeof (png_byte))));
 
          /* Initialize the sort array */
          for (i = 0; i < num_palette; i++)
@@ -619,7 +622,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
             png_ptr->palette_to_index[i] = (png_byte)i;
          }
 
-         hash = (png_dsortpp)png_calloc(png_ptr, (png_uint_32)(769 *
+         hash = (png_dsortpp)png_calloc(png_ptr, (png_alloc_size_t)(769 *
              (sizeof (png_dsortp))));
 
          num_new_palette = num_palette;
@@ -650,7 +653,7 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
                   {
 
                      t = (png_dsortp)png_malloc_warn(png_ptr,
-                         (png_uint_32)(sizeof (png_dsort)));
+                         (png_alloc_size_t)(sizeof (png_dsort)));
 
                      if (t == NULL)
                          break;
@@ -772,12 +775,12 @@ png_set_quantize(png_structrp png_ptr, png_colorp palette,
       int num_red = (1 << PNG_QUANTIZE_RED_BITS);
       int num_green = (1 << PNG_QUANTIZE_GREEN_BITS);
       int num_blue = (1 << PNG_QUANTIZE_BLUE_BITS);
-      png_size_t num_entries = ((png_size_t)1 << total_bits);
+      size_t num_entries = ((size_t)1 << total_bits);
 
       png_ptr->palette_lookup = (png_bytep)png_calloc(png_ptr,
-          (png_uint_32)(num_entries * (sizeof (png_byte))));
+          (png_alloc_size_t)(num_entries * (sizeof (png_byte))));
 
-      distance = (png_bytep)png_malloc(png_ptr, (png_uint_32)(num_entries *
+      distance = (png_bytep)png_malloc(png_ptr, (png_alloc_size_t)(num_entries *
           (sizeof (png_byte))));
 
       memset(distance, 0xff, num_entries * (sizeof (png_byte)));
@@ -1281,7 +1284,7 @@ png_init_rgb_transformations(png_structrp png_ptr)
             default:
 
             case 8:
-               /* FALL THROUGH (Already 8 bits) */
+               /* FALLTHROUGH */ /*  (Already 8 bits) */
 
             case 16:
                /* Already a full 16 bits */
@@ -1342,7 +1345,7 @@ png_init_read_transformations(png_structrp png_ptr)
 
       else if (png_ptr->screen_gamma != 0)
          /* The converse - assume the file matches the screen, note that this
-          * perhaps undesireable default can (from 1.5.4) be changed by calling
+          * perhaps undesirable default can (from 1.5.4) be changed by calling
           * png_set_alpha_mode (even if the alpha handling mode isn't required
           * or isn't changed from the default.)
           */
@@ -1910,7 +1913,7 @@ png_init_read_transformations(png_structrp png_ptr)
 
       png_ptr->transformations &= ~PNG_SHIFT;
 
-      /* significant bits can be in the range 1 to 7 for a meaninful result, if
+      /* significant bits can be in the range 1 to 7 for a meaningful result, if
        * the number of significant bits is 0 then no shift is done (this is an
        * error condition which is silently ignored.)
        */
@@ -2176,8 +2179,8 @@ png_do_unpack(png_row_infop row_info, png_bytep row)
       {
          case 1:
          {
-            png_bytep sp = row + (png_size_t)((row_width - 1) >> 3);
-            png_bytep dp = row + (png_size_t)row_width - 1;
+            png_bytep sp = row + (size_t)((row_width - 1) >> 3);
+            png_bytep dp = row + (size_t)row_width - 1;
             png_uint_32 shift = 7U - ((row_width + 7U) & 0x07);
             for (i = 0; i < row_width; i++)
             {
@@ -2200,8 +2203,8 @@ png_do_unpack(png_row_infop row_info, png_bytep row)
          case 2:
          {
 
-            png_bytep sp = row + (png_size_t)((row_width - 1) >> 2);
-            png_bytep dp = row + (png_size_t)row_width - 1;
+            png_bytep sp = row + (size_t)((row_width - 1) >> 2);
+            png_bytep dp = row + (size_t)row_width - 1;
             png_uint_32 shift = ((3U - ((row_width + 3U) & 0x03)) << 1);
             for (i = 0; i < row_width; i++)
             {
@@ -2223,8 +2226,8 @@ png_do_unpack(png_row_infop row_info, png_bytep row)
 
          case 4:
          {
-            png_bytep sp = row + (png_size_t)((row_width - 1) >> 1);
-            png_bytep dp = row + (png_size_t)row_width - 1;
+            png_bytep sp = row + (size_t)((row_width - 1) >> 1);
+            png_bytep dp = row + (size_t)row_width - 1;
             png_uint_32 shift = ((1U - ((row_width + 1U) & 0x01)) << 2);
             for (i = 0; i < row_width; i++)
             {
@@ -2488,95 +2491,94 @@ png_do_chop(png_row_infop row_info, png_bytep row)
 static void
 png_do_read_swap_alpha(png_row_infop row_info, png_bytep row)
 {
+   png_uint_32 row_width = row_info->width;
+
    png_debug(1, "in png_do_read_swap_alpha");
 
+   if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
    {
-      png_uint_32 row_width = row_info->width;
-      if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+      /* This converts from RGBA to ARGB */
+      if (row_info->bit_depth == 8)
       {
-         /* This converts from RGBA to ARGB */
-         if (row_info->bit_depth == 8)
-         {
-            png_bytep sp = row + row_info->rowbytes;
-            png_bytep dp = sp;
-            png_byte save;
-            png_uint_32 i;
+         png_bytep sp = row + row_info->rowbytes;
+         png_bytep dp = sp;
+         png_byte save;
+         png_uint_32 i;
 
-            for (i = 0; i < row_width; i++)
-            {
-               save = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = save;
-            }
+         for (i = 0; i < row_width; i++)
+         {
+            save = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = save;
          }
+      }
 
 #ifdef PNG_READ_16BIT_SUPPORTED
-         /* This converts from RRGGBBAA to AARRGGBB */
-         else
-         {
-            png_bytep sp = row + row_info->rowbytes;
-            png_bytep dp = sp;
-            png_byte save[2];
-            png_uint_32 i;
+      /* This converts from RRGGBBAA to AARRGGBB */
+      else
+      {
+         png_bytep sp = row + row_info->rowbytes;
+         png_bytep dp = sp;
+         png_byte save[2];
+         png_uint_32 i;
 
-            for (i = 0; i < row_width; i++)
-            {
-               save[0] = *(--sp);
-               save[1] = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = save[0];
-               *(--dp) = save[1];
-            }
+         for (i = 0; i < row_width; i++)
+         {
+            save[0] = *(--sp);
+            save[1] = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = save[0];
+            *(--dp) = save[1];
          }
-#endif
       }
+#endif
+   }
 
-      else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+   else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+   {
+      /* This converts from GA to AG */
+      if (row_info->bit_depth == 8)
       {
-         /* This converts from GA to AG */
-         if (row_info->bit_depth == 8)
-         {
-            png_bytep sp = row + row_info->rowbytes;
-            png_bytep dp = sp;
-            png_byte save;
-            png_uint_32 i;
+         png_bytep sp = row + row_info->rowbytes;
+         png_bytep dp = sp;
+         png_byte save;
+         png_uint_32 i;
 
-            for (i = 0; i < row_width; i++)
-            {
-               save = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = save;
-            }
+         for (i = 0; i < row_width; i++)
+         {
+            save = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = save;
          }
+      }
 
 #ifdef PNG_READ_16BIT_SUPPORTED
-         /* This converts from GGAA to AAGG */
-         else
-         {
-            png_bytep sp = row + row_info->rowbytes;
-            png_bytep dp = sp;
-            png_byte save[2];
-            png_uint_32 i;
+      /* This converts from GGAA to AAGG */
+      else
+      {
+         png_bytep sp = row + row_info->rowbytes;
+         png_bytep dp = sp;
+         png_byte save[2];
+         png_uint_32 i;
 
-            for (i = 0; i < row_width; i++)
-            {
-               save[0] = *(--sp);
-               save[1] = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = *(--sp);
-               *(--dp) = save[0];
-               *(--dp) = save[1];
-            }
+         for (i = 0; i < row_width; i++)
+         {
+            save[0] = *(--sp);
+            save[1] = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = *(--sp);
+            *(--dp) = save[0];
+            *(--dp) = save[1];
          }
-#endif
       }
+#endif
    }
 }
 #endif
@@ -2706,8 +2708,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
          if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
          {
             /* This changes the data from G to GX */
-            png_bytep sp = row + (png_size_t)row_width;
-            png_bytep dp =  sp + (png_size_t)row_width;
+            png_bytep sp = row + (size_t)row_width;
+            png_bytep dp =  sp + (size_t)row_width;
             for (i = 1; i < row_width; i++)
             {
                *(--dp) = lo_filler;
@@ -2722,8 +2724,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
          else
          {
             /* This changes the data from G to XG */
-            png_bytep sp = row + (png_size_t)row_width;
-            png_bytep dp = sp  + (png_size_t)row_width;
+            png_bytep sp = row + (size_t)row_width;
+            png_bytep dp = sp  + (size_t)row_width;
             for (i = 0; i < row_width; i++)
             {
                *(--dp) = *(--sp);
@@ -2741,8 +2743,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
          if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
          {
             /* This changes the data from GG to GGXX */
-            png_bytep sp = row + (png_size_t)row_width * 2;
-            png_bytep dp = sp  + (png_size_t)row_width * 2;
+            png_bytep sp = row + (size_t)row_width * 2;
+            png_bytep dp = sp  + (size_t)row_width * 2;
             for (i = 1; i < row_width; i++)
             {
                *(--dp) = lo_filler;
@@ -2760,8 +2762,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
          else
          {
             /* This changes the data from GG to XXGG */
-            png_bytep sp = row + (png_size_t)row_width * 2;
-            png_bytep dp = sp  + (png_size_t)row_width * 2;
+            png_bytep sp = row + (size_t)row_width * 2;
+            png_bytep dp = sp  + (size_t)row_width * 2;
             for (i = 0; i < row_width; i++)
             {
                *(--dp) = *(--sp);
@@ -2783,8 +2785,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
          if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
          {
             /* This changes the data from RGB to RGBX */
-            png_bytep sp = row + (png_size_t)row_width * 3;
-            png_bytep dp = sp  + (png_size_t)row_width;
+            png_bytep sp = row + (size_t)row_width * 3;
+            png_bytep dp = sp  + (size_t)row_width;
             for (i = 1; i < row_width; i++)
             {
                *(--dp) = lo_filler;
@@ -2801,8 +2803,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
          else
          {
             /* This changes the data from RGB to XRGB */
-            png_bytep sp = row + (png_size_t)row_width * 3;
-            png_bytep dp = sp + (png_size_t)row_width;
+            png_bytep sp = row + (size_t)row_width * 3;
+            png_bytep dp = sp + (size_t)row_width;
             for (i = 0; i < row_width; i++)
             {
                *(--dp) = *(--sp);
@@ -2822,8 +2824,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
          if ((flags & PNG_FLAG_FILLER_AFTER) != 0)
          {
             /* This changes the data from RRGGBB to RRGGBBXX */
-            png_bytep sp = row + (png_size_t)row_width * 6;
-            png_bytep dp = sp  + (png_size_t)row_width * 2;
+            png_bytep sp = row + (size_t)row_width * 6;
+            png_bytep dp = sp  + (size_t)row_width * 2;
             for (i = 1; i < row_width; i++)
             {
                *(--dp) = lo_filler;
@@ -2845,8 +2847,8 @@ png_do_read_filler(png_row_infop row_info, png_bytep row,
          else
          {
             /* This changes the data from RRGGBB to XXRRGGBB */
-            png_bytep sp = row + (png_size_t)row_width * 6;
-            png_bytep dp = sp  + (png_size_t)row_width * 2;
+            png_bytep sp = row + (size_t)row_width * 6;
+            png_bytep dp = sp  + (size_t)row_width * 2;
             for (i = 0; i < row_width; i++)
             {
                *(--dp) = *(--sp);
@@ -2887,8 +2889,8 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
          if (row_info->bit_depth == 8)
          {
             /* This changes G to RGB */
-            png_bytep sp = row + (png_size_t)row_width - 1;
-            png_bytep dp = sp  + (png_size_t)row_width * 2;
+            png_bytep sp = row + (size_t)row_width - 1;
+            png_bytep dp = sp  + (size_t)row_width * 2;
             for (i = 0; i < row_width; i++)
             {
                *(dp--) = *sp;
@@ -2900,8 +2902,8 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
          else
          {
             /* This changes GG to RRGGBB */
-            png_bytep sp = row + (png_size_t)row_width * 2 - 1;
-            png_bytep dp = sp  + (png_size_t)row_width * 4;
+            png_bytep sp = row + (size_t)row_width * 2 - 1;
+            png_bytep dp = sp  + (size_t)row_width * 4;
             for (i = 0; i < row_width; i++)
             {
                *(dp--) = *sp;
@@ -2919,8 +2921,8 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
          if (row_info->bit_depth == 8)
          {
             /* This changes GA to RGBA */
-            png_bytep sp = row + (png_size_t)row_width * 2 - 1;
-            png_bytep dp = sp  + (png_size_t)row_width * 2;
+            png_bytep sp = row + (size_t)row_width * 2 - 1;
+            png_bytep dp = sp  + (size_t)row_width * 2;
             for (i = 0; i < row_width; i++)
             {
                *(dp--) = *(sp--);
@@ -2933,8 +2935,8 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
          else
          {
             /* This changes GGAA to RRGGBBAA */
-            png_bytep sp = row + (png_size_t)row_width * 4 - 1;
-            png_bytep dp = sp  + (png_size_t)row_width * 4;
+            png_bytep sp = row + (size_t)row_width * 4 - 1;
+            png_bytep dp = sp  + (size_t)row_width * 4;
             for (i = 0; i < row_width; i++)
             {
                *(dp--) = *(sp--);
@@ -2962,7 +2964,7 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
  * using the equation given in Poynton's ColorFAQ of 1998-01-04 at
  * <http://www.inforamp.net/~poynton/>  (THIS LINK IS DEAD June 2008 but
  * versions dated 1998 through November 2002 have been archived at
- * http://web.archive.org/web/20000816232553/http://www.inforamp.net/
+ * https://web.archive.org/web/20000816232553/www.inforamp.net/
  * ~poynton/notes/colour_and_gamma/ColorFAQ.txt )
  * Charles Poynton poynton at poynton.com
  *
@@ -3005,7 +3007,7 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
  *  values this results in an implicit assumption that the original PNG RGB
  *  values were linear.
  *
- *  Other integer coefficents can be used via png_set_rgb_to_gray().  Because
+ *  Other integer coefficients can be used via png_set_rgb_to_gray().  Because
  *  the API takes just red and green coefficients the blue coefficient is
  *  calculated to make the sum 32768.  This will result in different rounding
  *  to that used above.
@@ -3234,720 +3236,718 @@ png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr)
 
    png_debug(1, "in png_do_compose");
 
+   switch (row_info->color_type)
    {
-      switch (row_info->color_type)
+      case PNG_COLOR_TYPE_GRAY:
       {
-         case PNG_COLOR_TYPE_GRAY:
+         switch (row_info->bit_depth)
          {
-            switch (row_info->bit_depth)
+            case 1:
+            {
+               sp = row;
+               shift = 7;
+               for (i = 0; i < row_width; i++)
+               {
+                  if ((png_uint_16)((*sp >> shift) & 0x01)
+                     == png_ptr->trans_color.gray)
+                  {
+                     unsigned int tmp = *sp & (0x7f7f >> (7 - shift));
+                     tmp |=
+                         (unsigned int)(png_ptr->background.gray << shift);
+                     *sp = (png_byte)(tmp & 0xff);
+                  }
+
+                  if (shift == 0)
+                  {
+                     shift = 7;
+                     sp++;
+                  }
+
+                  else
+                     shift--;
+               }
+               break;
+            }
+
+            case 2:
             {
-               case 1:
+#ifdef PNG_READ_GAMMA_SUPPORTED
+               if (gamma_table != NULL)
                {
                   sp = row;
-                  shift = 7;
+                  shift = 6;
                   for (i = 0; i < row_width; i++)
                   {
-                     if ((png_uint_16)((*sp >> shift) & 0x01)
-                        == png_ptr->trans_color.gray)
+                     if ((png_uint_16)((*sp >> shift) & 0x03)
+                         == png_ptr->trans_color.gray)
                      {
-                        unsigned int tmp = *sp & (0x7f7f >> (7 - shift));
+                        unsigned int tmp = *sp & (0x3f3f >> (6 - shift));
                         tmp |=
-                            (unsigned int)(png_ptr->background.gray << shift);
+                           (unsigned int)png_ptr->background.gray << shift;
+                        *sp = (png_byte)(tmp & 0xff);
+                     }
+
+                     else
+                     {
+                        unsigned int p = (*sp >> shift) & 0x03;
+                        unsigned int g = (gamma_table [p | (p << 2) |
+                            (p << 4) | (p << 6)] >> 6) & 0x03;
+                        unsigned int tmp = *sp & (0x3f3f >> (6 - shift));
+                        tmp |= (unsigned int)(g << shift);
                         *sp = (png_byte)(tmp & 0xff);
                      }
 
                      if (shift == 0)
                      {
-                        shift = 7;
+                        shift = 6;
                         sp++;
                      }
 
                      else
-                        shift--;
+                        shift -= 2;
                   }
-                  break;
                }
 
-               case 2:
+               else
+#endif
                {
-#ifdef PNG_READ_GAMMA_SUPPORTED
-                  if (gamma_table != NULL)
+                  sp = row;
+                  shift = 6;
+                  for (i = 0; i < row_width; i++)
                   {
-                     sp = row;
-                     shift = 6;
-                     for (i = 0; i < row_width; i++)
+                     if ((png_uint_16)((*sp >> shift) & 0x03)
+                         == png_ptr->trans_color.gray)
                      {
-                        if ((png_uint_16)((*sp >> shift) & 0x03)
-                            == png_ptr->trans_color.gray)
-                        {
-                           unsigned int tmp = *sp & (0x3f3f >> (6 - shift));
-                           tmp |=
-                              (unsigned int)png_ptr->background.gray << shift;
-                           *sp = (png_byte)(tmp & 0xff);
-                        }
-
-                        else
-                        {
-                           unsigned int p = (*sp >> shift) & 0x03;
-                           unsigned int g = (gamma_table [p | (p << 2) |
-                               (p << 4) | (p << 6)] >> 6) & 0x03;
-                           unsigned int tmp = *sp & (0x3f3f >> (6 - shift));
-                           tmp |= (unsigned int)(g << shift);
-                           *sp = (png_byte)(tmp & 0xff);
-                        }
-
-                        if (shift == 0)
-                        {
-                           shift = 6;
-                           sp++;
-                        }
-
-                        else
-                           shift -= 2;
+                        unsigned int tmp = *sp & (0x3f3f >> (6 - shift));
+                        tmp |=
+                            (unsigned int)png_ptr->background.gray << shift;
+                        *sp = (png_byte)(tmp & 0xff);
                      }
-                  }
 
-                  else
-#endif
-                  {
-                     sp = row;
-                     shift = 6;
-                     for (i = 0; i < row_width; i++)
+                     if (shift == 0)
                      {
-                        if ((png_uint_16)((*sp >> shift) & 0x03)
-                            == png_ptr->trans_color.gray)
-                        {
-                           unsigned int tmp = *sp & (0x3f3f >> (6 - shift));
-                           tmp |=
-                               (unsigned int)png_ptr->background.gray << shift;
-                           *sp = (png_byte)(tmp & 0xff);
-                        }
-
-                        if (shift == 0)
-                        {
-                           shift = 6;
-                           sp++;
-                        }
-
-                        else
-                           shift -= 2;
+                        shift = 6;
+                        sp++;
                      }
+
+                     else
+                        shift -= 2;
                   }
-                  break;
                }
+               break;
+            }
 
-               case 4:
-               {
+            case 4:
+            {
 #ifdef PNG_READ_GAMMA_SUPPORTED
-                  if (gamma_table != NULL)
+               if (gamma_table != NULL)
+               {
+                  sp = row;
+                  shift = 4;
+                  for (i = 0; i < row_width; i++)
                   {
-                     sp = row;
-                     shift = 4;
-                     for (i = 0; i < row_width; i++)
+                     if ((png_uint_16)((*sp >> shift) & 0x0f)
+                         == png_ptr->trans_color.gray)
                      {
-                        if ((png_uint_16)((*sp >> shift) & 0x0f)
-                            == png_ptr->trans_color.gray)
-                        {
-                           unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
-                           tmp |=
-                              (unsigned int)(png_ptr->background.gray << shift);
-                           *sp = (png_byte)(tmp & 0xff);
-                        }
-
-                        else
-                        {
-                           unsigned int p = (*sp >> shift) & 0x0f;
-                           unsigned int g = (gamma_table[p | (p << 4)] >> 4) &
-                              0x0f;
-                           unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
-                           tmp |= (unsigned int)(g << shift);
-                           *sp = (png_byte)(tmp & 0xff);
-                        }
-
-                        if (shift == 0)
-                        {
-                           shift = 4;
-                           sp++;
-                        }
-
-                        else
-                           shift -= 4;
+                        unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
+                        tmp |=
+                           (unsigned int)(png_ptr->background.gray << shift);
+                        *sp = (png_byte)(tmp & 0xff);
                      }
-                  }
 
-                  else
-#endif
-                  {
-                     sp = row;
-                     shift = 4;
-                     for (i = 0; i < row_width; i++)
+                     else
                      {
-                        if ((png_uint_16)((*sp >> shift) & 0x0f)
-                            == png_ptr->trans_color.gray)
-                        {
-                           unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
-                           tmp |=
-                              (unsigned int)(png_ptr->background.gray << shift);
-                           *sp = (png_byte)(tmp & 0xff);
-                        }
-
-                        if (shift == 0)
-                        {
-                           shift = 4;
-                           sp++;
-                        }
-
-                        else
-                           shift -= 4;
+                        unsigned int p = (*sp >> shift) & 0x0f;
+                        unsigned int g = (gamma_table[p | (p << 4)] >> 4) &
+                           0x0f;
+                        unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
+                        tmp |= (unsigned int)(g << shift);
+                        *sp = (png_byte)(tmp & 0xff);
                      }
-                  }
-                  break;
-               }
 
-               case 8:
-               {
-#ifdef PNG_READ_GAMMA_SUPPORTED
-                  if (gamma_table != NULL)
-                  {
-                     sp = row;
-                     for (i = 0; i < row_width; i++, sp++)
-                     {
-                        if (*sp == png_ptr->trans_color.gray)
-                           *sp = (png_byte)png_ptr->background.gray;
-
-                        else
-                           *sp = gamma_table[*sp];
-                     }
-                  }
-                  else
-#endif
-                  {
-                     sp = row;
-                     for (i = 0; i < row_width; i++, sp++)
+                     if (shift == 0)
                      {
-                        if (*sp == png_ptr->trans_color.gray)
-                           *sp = (png_byte)png_ptr->background.gray;
+                        shift = 4;
+                        sp++;
                      }
+
+                     else
+                        shift -= 4;
                   }
-                  break;
                }
 
-               case 16:
+               else
+#endif
                {
-#ifdef PNG_READ_GAMMA_SUPPORTED
-                  if (gamma_16 != NULL)
+                  sp = row;
+                  shift = 4;
+                  for (i = 0; i < row_width; i++)
                   {
-                     sp = row;
-                     for (i = 0; i < row_width; i++, sp += 2)
+                     if ((png_uint_16)((*sp >> shift) & 0x0f)
+                         == png_ptr->trans_color.gray)
                      {
-                        png_uint_16 v;
-
-                        v = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-
-                        if (v == png_ptr->trans_color.gray)
-                        {
-                           /* Background is already in screen gamma */
-                           *sp = (png_byte)((png_ptr->background.gray >> 8)
-                                & 0xff);
-                           *(sp + 1) = (png_byte)(png_ptr->background.gray
-                                & 0xff);
-                        }
-
-                        else
-                        {
-                           v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
-                           *sp = (png_byte)((v >> 8) & 0xff);
-                           *(sp + 1) = (png_byte)(v & 0xff);
-                        }
+                        unsigned int tmp = *sp & (0x0f0f >> (4 - shift));
+                        tmp |=
+                           (unsigned int)(png_ptr->background.gray << shift);
+                        *sp = (png_byte)(tmp & 0xff);
                      }
-                  }
-                  else
-#endif
-                  {
-                     sp = row;
-                     for (i = 0; i < row_width; i++, sp += 2)
-                     {
-                        png_uint_16 v;
 
-                        v = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-
-                        if (v == png_ptr->trans_color.gray)
-                        {
-                           *sp = (png_byte)((png_ptr->background.gray >> 8)
-                                & 0xff);
-                           *(sp + 1) = (png_byte)(png_ptr->background.gray
-                                & 0xff);
-                        }
+                     if (shift == 0)
+                     {
+                        shift = 4;
+                        sp++;
                      }
+
+                     else
+                        shift -= 4;
                   }
-                  break;
                }
-
-               default:
-                  break;
+               break;
             }
-            break;
-         }
 
-         case PNG_COLOR_TYPE_RGB:
-         {
-            if (row_info->bit_depth == 8)
+            case 8:
             {
 #ifdef PNG_READ_GAMMA_SUPPORTED
                if (gamma_table != NULL)
                {
                   sp = row;
-                  for (i = 0; i < row_width; i++, sp += 3)
+                  for (i = 0; i < row_width; i++, sp++)
                   {
-                     if (*sp == png_ptr->trans_color.red &&
-                         *(sp + 1) == png_ptr->trans_color.green &&
-                         *(sp + 2) == png_ptr->trans_color.blue)
-                     {
-                        *sp = (png_byte)png_ptr->background.red;
-                        *(sp + 1) = (png_byte)png_ptr->background.green;
-                        *(sp + 2) = (png_byte)png_ptr->background.blue;
-                     }
+                     if (*sp == png_ptr->trans_color.gray)
+                        *sp = (png_byte)png_ptr->background.gray;
 
                      else
-                     {
                         *sp = gamma_table[*sp];
-                        *(sp + 1) = gamma_table[*(sp + 1)];
-                        *(sp + 2) = gamma_table[*(sp + 2)];
-                     }
                   }
                }
                else
 #endif
                {
                   sp = row;
-                  for (i = 0; i < row_width; i++, sp += 3)
+                  for (i = 0; i < row_width; i++, sp++)
                   {
-                     if (*sp == png_ptr->trans_color.red &&
-                         *(sp + 1) == png_ptr->trans_color.green &&
-                         *(sp + 2) == png_ptr->trans_color.blue)
-                     {
-                        *sp = (png_byte)png_ptr->background.red;
-                        *(sp + 1) = (png_byte)png_ptr->background.green;
-                        *(sp + 2) = (png_byte)png_ptr->background.blue;
-                     }
+                     if (*sp == png_ptr->trans_color.gray)
+                        *sp = (png_byte)png_ptr->background.gray;
                   }
                }
+               break;
             }
-            else /* if (row_info->bit_depth == 16) */
+
+            case 16:
             {
 #ifdef PNG_READ_GAMMA_SUPPORTED
                if (gamma_16 != NULL)
                {
                   sp = row;
-                  for (i = 0; i < row_width; i++, sp += 6)
+                  for (i = 0; i < row_width; i++, sp += 2)
                   {
-                     png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-
-                     png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8)
-                         + *(sp + 3));
+                     png_uint_16 v;
 
-                     png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8)
-                         + *(sp + 5));
+                     v = (png_uint_16)(((*sp) << 8) + *(sp + 1));
 
-                     if (r == png_ptr->trans_color.red &&
-                         g == png_ptr->trans_color.green &&
-                         b == png_ptr->trans_color.blue)
+                     if (v == png_ptr->trans_color.gray)
                      {
                         /* Background is already in screen gamma */
-                        *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
-                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
-                                & 0xff);
-                        *(sp + 3) = (png_byte)(png_ptr->background.green
-                                & 0xff);
-                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
-                                & 0xff);
-                        *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
+                        *sp = (png_byte)((png_ptr->background.gray >> 8)
+                             & 0xff);
+                        *(sp + 1) = (png_byte)(png_ptr->background.gray
+                             & 0xff);
                      }
 
                      else
                      {
-                        png_uint_16 v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
+                        v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
                         *sp = (png_byte)((v >> 8) & 0xff);
                         *(sp + 1) = (png_byte)(v & 0xff);
-
-                        v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)];
-                        *(sp + 2) = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 3) = (png_byte)(v & 0xff);
-
-                        v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)];
-                        *(sp + 4) = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 5) = (png_byte)(v & 0xff);
                      }
                   }
                }
-
                else
 #endif
                {
                   sp = row;
-                  for (i = 0; i < row_width; i++, sp += 6)
+                  for (i = 0; i < row_width; i++, sp += 2)
                   {
-                     png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-
-                     png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8)
-                         + *(sp + 3));
+                     png_uint_16 v;
 
-                     png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8)
-                         + *(sp + 5));
+                     v = (png_uint_16)(((*sp) << 8) + *(sp + 1));
 
-                     if (r == png_ptr->trans_color.red &&
-                         g == png_ptr->trans_color.green &&
-                         b == png_ptr->trans_color.blue)
+                     if (v == png_ptr->trans_color.gray)
                      {
-                        *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
-                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
-                                & 0xff);
-                        *(sp + 3) = (png_byte)(png_ptr->background.green
-                                & 0xff);
-                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
-                                & 0xff);
-                        *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
+                        *sp = (png_byte)((png_ptr->background.gray >> 8)
+                             & 0xff);
+                        *(sp + 1) = (png_byte)(png_ptr->background.gray
+                             & 0xff);
                      }
                   }
                }
+               break;
             }
-            break;
+
+            default:
+               break;
          }
+         break;
+      }
 
-         case PNG_COLOR_TYPE_GRAY_ALPHA:
+      case PNG_COLOR_TYPE_RGB:
+      {
+         if (row_info->bit_depth == 8)
          {
-            if (row_info->bit_depth == 8)
-            {
 #ifdef PNG_READ_GAMMA_SUPPORTED
-               if (gamma_to_1 != NULL && gamma_from_1 != NULL &&
-                   gamma_table != NULL)
+            if (gamma_table != NULL)
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 3)
                {
-                  sp = row;
-                  for (i = 0; i < row_width; i++, sp += 2)
+                  if (*sp == png_ptr->trans_color.red &&
+                      *(sp + 1) == png_ptr->trans_color.green &&
+                      *(sp + 2) == png_ptr->trans_color.blue)
                   {
-                     png_uint_16 a = *(sp + 1);
+                     *sp = (png_byte)png_ptr->background.red;
+                     *(sp + 1) = (png_byte)png_ptr->background.green;
+                     *(sp + 2) = (png_byte)png_ptr->background.blue;
+                  }
 
-                     if (a == 0xff)
-                        *sp = gamma_table[*sp];
+                  else
+                  {
+                     *sp = gamma_table[*sp];
+                     *(sp + 1) = gamma_table[*(sp + 1)];
+                     *(sp + 2) = gamma_table[*(sp + 2)];
+                  }
+               }
+            }
+            else
+#endif
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 3)
+               {
+                  if (*sp == png_ptr->trans_color.red &&
+                      *(sp + 1) == png_ptr->trans_color.green &&
+                      *(sp + 2) == png_ptr->trans_color.blue)
+                  {
+                     *sp = (png_byte)png_ptr->background.red;
+                     *(sp + 1) = (png_byte)png_ptr->background.green;
+                     *(sp + 2) = (png_byte)png_ptr->background.blue;
+                  }
+               }
+            }
+         }
+         else /* if (row_info->bit_depth == 16) */
+         {
+#ifdef PNG_READ_GAMMA_SUPPORTED
+            if (gamma_16 != NULL)
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 6)
+               {
+                  png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1));
 
-                     else if (a == 0)
-                     {
-                        /* Background is already in screen gamma */
-                        *sp = (png_byte)png_ptr->background.gray;
-                     }
+                  png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8)
+                      + *(sp + 3));
 
-                     else
-                     {
-                        png_byte v, w;
+                  png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8)
+                      + *(sp + 5));
 
-                        v = gamma_to_1[*sp];
-                        png_composite(w, v, a, png_ptr->background_1.gray);
-                        if (optimize == 0)
-                           w = gamma_from_1[w];
-                        *sp = w;
-                     }
+                  if (r == png_ptr->trans_color.red &&
+                      g == png_ptr->trans_color.green &&
+                      b == png_ptr->trans_color.blue)
+                  {
+                     /* Background is already in screen gamma */
+                     *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
+                     *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
+                             & 0xff);
+                     *(sp + 3) = (png_byte)(png_ptr->background.green
+                             & 0xff);
+                     *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
+                             & 0xff);
+                     *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
+                  }
+
+                  else
+                  {
+                     png_uint_16 v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
+                     *sp = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(v & 0xff);
+
+                     v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)];
+                     *(sp + 2) = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 3) = (png_byte)(v & 0xff);
+
+                     v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)];
+                     *(sp + 4) = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 5) = (png_byte)(v & 0xff);
                   }
                }
-               else
+            }
+
+            else
 #endif
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 6)
                {
-                  sp = row;
-                  for (i = 0; i < row_width; i++, sp += 2)
+                  png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1));
+
+                  png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8)
+                      + *(sp + 3));
+
+                  png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8)
+                      + *(sp + 5));
+
+                  if (r == png_ptr->trans_color.red &&
+                      g == png_ptr->trans_color.green &&
+                      b == png_ptr->trans_color.blue)
                   {
-                     png_byte a = *(sp + 1);
+                     *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
+                     *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
+                             & 0xff);
+                     *(sp + 3) = (png_byte)(png_ptr->background.green
+                             & 0xff);
+                     *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
+                             & 0xff);
+                     *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
+                  }
+               }
+            }
+         }
+         break;
+      }
 
-                     if (a == 0)
-                        *sp = (png_byte)png_ptr->background.gray;
+      case PNG_COLOR_TYPE_GRAY_ALPHA:
+      {
+         if (row_info->bit_depth == 8)
+         {
+#ifdef PNG_READ_GAMMA_SUPPORTED
+            if (gamma_to_1 != NULL && gamma_from_1 != NULL &&
+                gamma_table != NULL)
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 2)
+               {
+                  png_uint_16 a = *(sp + 1);
+
+                  if (a == 0xff)
+                     *sp = gamma_table[*sp];
+
+                  else if (a == 0)
+                  {
+                     /* Background is already in screen gamma */
+                     *sp = (png_byte)png_ptr->background.gray;
+                  }
+
+                  else
+                  {
+                     png_byte v, w;
 
-                     else if (a < 0xff)
-                        png_composite(*sp, *sp, a, png_ptr->background.gray);
+                     v = gamma_to_1[*sp];
+                     png_composite(w, v, a, png_ptr->background_1.gray);
+                     if (optimize == 0)
+                        w = gamma_from_1[w];
+                     *sp = w;
                   }
                }
             }
-            else /* if (png_ptr->bit_depth == 16) */
+            else
+#endif
             {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 2)
+               {
+                  png_byte a = *(sp + 1);
+
+                  if (a == 0)
+                     *sp = (png_byte)png_ptr->background.gray;
+
+                  else if (a < 0xff)
+                     png_composite(*sp, *sp, a, png_ptr->background.gray);
+               }
+            }
+         }
+         else /* if (png_ptr->bit_depth == 16) */
+         {
 #ifdef PNG_READ_GAMMA_SUPPORTED
-               if (gamma_16 != NULL && gamma_16_from_1 != NULL &&
-                   gamma_16_to_1 != NULL)
+            if (gamma_16 != NULL && gamma_16_from_1 != NULL &&
+                gamma_16_to_1 != NULL)
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 4)
                {
-                  sp = row;
-                  for (i = 0; i < row_width; i++, sp += 4)
-                  {
-                     png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8)
-                         + *(sp + 3));
+                  png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8)
+                      + *(sp + 3));
 
-                     if (a == (png_uint_16)0xffff)
-                     {
-                        png_uint_16 v;
+                  if (a == (png_uint_16)0xffff)
+                  {
+                     png_uint_16 v;
 
-                        v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
-                        *sp = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(v & 0xff);
-                     }
+                     v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
+                     *sp = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(v & 0xff);
+                  }
 
-                     else if (a == 0)
-                     {
-                        /* Background is already in screen gamma */
-                        *sp = (png_byte)((png_ptr->background.gray >> 8)
-                                & 0xff);
-                        *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
-                     }
+                  else if (a == 0)
+                  {
+                     /* Background is already in screen gamma */
+                     *sp = (png_byte)((png_ptr->background.gray >> 8)
+                             & 0xff);
+                     *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
+                  }
 
-                     else
-                     {
-                        png_uint_16 g, v, w;
+                  else
+                  {
+                     png_uint_16 g, v, w;
 
-                        g = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
-                        png_composite_16(v, g, a, png_ptr->background_1.gray);
-                        if (optimize != 0)
-                           w = v;
-                        else
-                           w = gamma_16_from_1[(v & 0xff) >>
-                               gamma_shift][v >> 8];
-                        *sp = (png_byte)((w >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(w & 0xff);
-                     }
+                     g = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
+                     png_composite_16(v, g, a, png_ptr->background_1.gray);
+                     if (optimize != 0)
+                        w = v;
+                     else
+                        w = gamma_16_from_1[(v & 0xff) >>
+                            gamma_shift][v >> 8];
+                     *sp = (png_byte)((w >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(w & 0xff);
                   }
                }
-               else
+            }
+            else
 #endif
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 4)
                {
-                  sp = row;
-                  for (i = 0; i < row_width; i++, sp += 4)
-                  {
-                     png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8)
-                         + *(sp + 3));
+                  png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8)
+                      + *(sp + 3));
 
-                     if (a == 0)
-                     {
-                        *sp = (png_byte)((png_ptr->background.gray >> 8)
-                                & 0xff);
-                        *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
-                     }
+                  if (a == 0)
+                  {
+                     *sp = (png_byte)((png_ptr->background.gray >> 8)
+                             & 0xff);
+                     *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff);
+                  }
 
-                     else if (a < 0xffff)
-                     {
-                        png_uint_16 g, v;
+                  else if (a < 0xffff)
+                  {
+                     png_uint_16 g, v;
 
-                        g = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-                        png_composite_16(v, g, a, png_ptr->background.gray);
-                        *sp = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(v & 0xff);
-                     }
+                     g = (png_uint_16)(((*sp) << 8) + *(sp + 1));
+                     png_composite_16(v, g, a, png_ptr->background.gray);
+                     *sp = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(v & 0xff);
                   }
                }
             }
-            break;
          }
+         break;
+      }
 
-         case PNG_COLOR_TYPE_RGB_ALPHA:
+      case PNG_COLOR_TYPE_RGB_ALPHA:
+      {
+         if (row_info->bit_depth == 8)
          {
-            if (row_info->bit_depth == 8)
-            {
 #ifdef PNG_READ_GAMMA_SUPPORTED
-               if (gamma_to_1 != NULL && gamma_from_1 != NULL &&
-                   gamma_table != NULL)
+            if (gamma_to_1 != NULL && gamma_from_1 != NULL &&
+                gamma_table != NULL)
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 4)
                {
-                  sp = row;
-                  for (i = 0; i < row_width; i++, sp += 4)
+                  png_byte a = *(sp + 3);
+
+                  if (a == 0xff)
                   {
-                     png_byte a = *(sp + 3);
+                     *sp = gamma_table[*sp];
+                     *(sp + 1) = gamma_table[*(sp + 1)];
+                     *(sp + 2) = gamma_table[*(sp + 2)];
+                  }
 
-                     if (a == 0xff)
-                     {
-                        *sp = gamma_table[*sp];
-                        *(sp + 1) = gamma_table[*(sp + 1)];
-                        *(sp + 2) = gamma_table[*(sp + 2)];
-                     }
+                  else if (a == 0)
+                  {
+                     /* Background is already in screen gamma */
+                     *sp = (png_byte)png_ptr->background.red;
+                     *(sp + 1) = (png_byte)png_ptr->background.green;
+                     *(sp + 2) = (png_byte)png_ptr->background.blue;
+                  }
 
-                     else if (a == 0)
-                     {
-                        /* Background is already in screen gamma */
-                        *sp = (png_byte)png_ptr->background.red;
-                        *(sp + 1) = (png_byte)png_ptr->background.green;
-                        *(sp + 2) = (png_byte)png_ptr->background.blue;
-                     }
+                  else
+                  {
+                     png_byte v, w;
 
-                     else
-                     {
-                        png_byte v, w;
-
-                        v = gamma_to_1[*sp];
-                        png_composite(w, v, a, png_ptr->background_1.red);
-                        if (optimize == 0) w = gamma_from_1[w];
-                        *sp = w;
-
-                        v = gamma_to_1[*(sp + 1)];
-                        png_composite(w, v, a, png_ptr->background_1.green);
-                        if (optimize == 0) w = gamma_from_1[w];
-                        *(sp + 1) = w;
-
-                        v = gamma_to_1[*(sp + 2)];
-                        png_composite(w, v, a, png_ptr->background_1.blue);
-                        if (optimize == 0) w = gamma_from_1[w];
-                        *(sp + 2) = w;
-                     }
+                     v = gamma_to_1[*sp];
+                     png_composite(w, v, a, png_ptr->background_1.red);
+                     if (optimize == 0) w = gamma_from_1[w];
+                     *sp = w;
+
+                     v = gamma_to_1[*(sp + 1)];
+                     png_composite(w, v, a, png_ptr->background_1.green);
+                     if (optimize == 0) w = gamma_from_1[w];
+                     *(sp + 1) = w;
+
+                     v = gamma_to_1[*(sp + 2)];
+                     png_composite(w, v, a, png_ptr->background_1.blue);
+                     if (optimize == 0) w = gamma_from_1[w];
+                     *(sp + 2) = w;
                   }
                }
-               else
+            }
+            else
 #endif
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 4)
                {
-                  sp = row;
-                  for (i = 0; i < row_width; i++, sp += 4)
-                  {
-                     png_byte a = *(sp + 3);
+                  png_byte a = *(sp + 3);
 
-                     if (a == 0)
-                     {
-                        *sp = (png_byte)png_ptr->background.red;
-                        *(sp + 1) = (png_byte)png_ptr->background.green;
-                        *(sp + 2) = (png_byte)png_ptr->background.blue;
-                     }
+                  if (a == 0)
+                  {
+                     *sp = (png_byte)png_ptr->background.red;
+                     *(sp + 1) = (png_byte)png_ptr->background.green;
+                     *(sp + 2) = (png_byte)png_ptr->background.blue;
+                  }
 
-                     else if (a < 0xff)
-                     {
-                        png_composite(*sp, *sp, a, png_ptr->background.red);
+                  else if (a < 0xff)
+                  {
+                     png_composite(*sp, *sp, a, png_ptr->background.red);
 
-                        png_composite(*(sp + 1), *(sp + 1), a,
-                            png_ptr->background.green);
+                     png_composite(*(sp + 1), *(sp + 1), a,
+                         png_ptr->background.green);
 
-                        png_composite(*(sp + 2), *(sp + 2), a,
-                            png_ptr->background.blue);
-                     }
+                     png_composite(*(sp + 2), *(sp + 2), a,
+                         png_ptr->background.blue);
                   }
                }
             }
-            else /* if (row_info->bit_depth == 16) */
-            {
+         }
+         else /* if (row_info->bit_depth == 16) */
+         {
 #ifdef PNG_READ_GAMMA_SUPPORTED
-               if (gamma_16 != NULL && gamma_16_from_1 != NULL &&
-                   gamma_16_to_1 != NULL)
+            if (gamma_16 != NULL && gamma_16_from_1 != NULL &&
+                gamma_16_to_1 != NULL)
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 8)
                {
-                  sp = row;
-                  for (i = 0; i < row_width; i++, sp += 8)
-                  {
-                     png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6))
-                         << 8) + (png_uint_16)(*(sp + 7)));
+                  png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6))
+                      << 8) + (png_uint_16)(*(sp + 7)));
 
-                     if (a == (png_uint_16)0xffff)
-                     {
-                        png_uint_16 v;
+                  if (a == (png_uint_16)0xffff)
+                  {
+                     png_uint_16 v;
 
-                        v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
-                        *sp = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(v & 0xff);
+                     v = gamma_16[*(sp + 1) >> gamma_shift][*sp];
+                     *sp = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(v & 0xff);
 
-                        v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)];
-                        *(sp + 2) = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 3) = (png_byte)(v & 0xff);
+                     v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)];
+                     *(sp + 2) = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 3) = (png_byte)(v & 0xff);
 
-                        v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)];
-                        *(sp + 4) = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 5) = (png_byte)(v & 0xff);
-                     }
+                     v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)];
+                     *(sp + 4) = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 5) = (png_byte)(v & 0xff);
+                  }
 
-                     else if (a == 0)
-                     {
-                        /* Background is already in screen gamma */
-                        *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
-                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
-                                & 0xff);
-                        *(sp + 3) = (png_byte)(png_ptr->background.green
-                                & 0xff);
-                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
-                                & 0xff);
-                        *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
-                     }
+                  else if (a == 0)
+                  {
+                     /* Background is already in screen gamma */
+                     *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
+                     *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
+                             & 0xff);
+                     *(sp + 3) = (png_byte)(png_ptr->background.green
+                             & 0xff);
+                     *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
+                             & 0xff);
+                     *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
+                  }
 
-                     else
-                     {
-                        png_uint_16 v, w;
-
-                        v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
-                        png_composite_16(w, v, a, png_ptr->background_1.red);
-                        if (optimize == 0)
-                           w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
-                                8];
-                        *sp = (png_byte)((w >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(w & 0xff);
-
-                        v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)];
-                        png_composite_16(w, v, a, png_ptr->background_1.green);
-                        if (optimize == 0)
-                           w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
-                                8];
-
-                        *(sp + 2) = (png_byte)((w >> 8) & 0xff);
-                        *(sp + 3) = (png_byte)(w & 0xff);
-
-                        v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)];
-                        png_composite_16(w, v, a, png_ptr->background_1.blue);
-                        if (optimize == 0)
-                           w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
-                                8];
-
-                        *(sp + 4) = (png_byte)((w >> 8) & 0xff);
-                        *(sp + 5) = (png_byte)(w & 0xff);
-                     }
+                  else
+                  {
+                     png_uint_16 v, w;
+
+                     v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp];
+                     png_composite_16(w, v, a, png_ptr->background_1.red);
+                     if (optimize == 0)
+                        w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
+                             8];
+                     *sp = (png_byte)((w >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(w & 0xff);
+
+                     v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)];
+                     png_composite_16(w, v, a, png_ptr->background_1.green);
+                     if (optimize == 0)
+                        w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
+                             8];
+
+                     *(sp + 2) = (png_byte)((w >> 8) & 0xff);
+                     *(sp + 3) = (png_byte)(w & 0xff);
+
+                     v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)];
+                     png_composite_16(w, v, a, png_ptr->background_1.blue);
+                     if (optimize == 0)
+                        w = gamma_16_from_1[((w & 0xff) >> gamma_shift)][w >>
+                             8];
+
+                     *(sp + 4) = (png_byte)((w >> 8) & 0xff);
+                     *(sp + 5) = (png_byte)(w & 0xff);
                   }
                }
+            }
 
-               else
+            else
 #endif
+            {
+               sp = row;
+               for (i = 0; i < row_width; i++, sp += 8)
                {
-                  sp = row;
-                  for (i = 0; i < row_width; i++, sp += 8)
-                  {
-                     png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6))
-                         << 8) + (png_uint_16)(*(sp + 7)));
+                  png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6))
+                      << 8) + (png_uint_16)(*(sp + 7)));
 
-                     if (a == 0)
-                     {
-                        *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
-                        *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
-                                & 0xff);
-                        *(sp + 3) = (png_byte)(png_ptr->background.green
-                                & 0xff);
-                        *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
-                                & 0xff);
-                        *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
-                     }
+                  if (a == 0)
+                  {
+                     *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff);
+                     *(sp + 2) = (png_byte)((png_ptr->background.green >> 8)
+                             & 0xff);
+                     *(sp + 3) = (png_byte)(png_ptr->background.green
+                             & 0xff);
+                     *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8)
+                             & 0xff);
+                     *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff);
+                  }
 
-                     else if (a < 0xffff)
-                     {
-                        png_uint_16 v;
+                  else if (a < 0xffff)
+                  {
+                     png_uint_16 v;
 
-                        png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1));
-                        png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8)
-                            + *(sp + 3));
-                        png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8)
-                            + *(sp + 5));
+                     png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1));
+                     png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8)
+                         + *(sp + 3));
+                     png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8)
+                         + *(sp + 5));
 
-                        png_composite_16(v, r, a, png_ptr->background.red);
-                        *sp = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 1) = (png_byte)(v & 0xff);
+                     png_composite_16(v, r, a, png_ptr->background.red);
+                     *sp = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 1) = (png_byte)(v & 0xff);
 
-                        png_composite_16(v, g, a, png_ptr->background.green);
-                        *(sp + 2) = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 3) = (png_byte)(v & 0xff);
+                     png_composite_16(v, g, a, png_ptr->background.green);
+                     *(sp + 2) = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 3) = (png_byte)(v & 0xff);
 
-                        png_composite_16(v, b, a, png_ptr->background.blue);
-                        *(sp + 4) = (png_byte)((v >> 8) & 0xff);
-                        *(sp + 5) = (png_byte)(v & 0xff);
-                     }
+                     png_composite_16(v, b, a, png_ptr->background.blue);
+                     *(sp + 4) = (png_byte)((v >> 8) & 0xff);
+                     *(sp + 5) = (png_byte)(v & 0xff);
                   }
                }
             }
-            break;
          }
-
-         default:
-            break;
+         break;
       }
+
+      default:
+         break;
    }
 }
 #endif /* READ_BACKGROUND || READ_ALPHA_MODE */
@@ -4245,8 +4245,8 @@ png_do_expand_palette(png_row_infop row_info, png_bytep row,
          {
             case 1:
             {
-               sp = row + (png_size_t)((row_width - 1) >> 3);
-               dp = row + (png_size_t)row_width - 1;
+               sp = row + (size_t)((row_width - 1) >> 3);
+               dp = row + (size_t)row_width - 1;
                shift = 7 - (int)((row_width + 7) & 0x07);
                for (i = 0; i < row_width; i++)
                {
@@ -4272,8 +4272,8 @@ png_do_expand_palette(png_row_infop row_info, png_bytep row,
 
             case 2:
             {
-               sp = row + (png_size_t)((row_width - 1) >> 2);
-               dp = row + (png_size_t)row_width - 1;
+               sp = row + (size_t)((row_width - 1) >> 2);
+               dp = row + (size_t)row_width - 1;
                shift = (int)((3 - ((row_width + 3) & 0x03)) << 1);
                for (i = 0; i < row_width; i++)
                {
@@ -4295,8 +4295,8 @@ png_do_expand_palette(png_row_infop row_info, png_bytep row,
 
             case 4:
             {
-               sp = row + (png_size_t)((row_width - 1) >> 1);
-               dp = row + (png_size_t)row_width - 1;
+               sp = row + (size_t)((row_width - 1) >> 1);
+               dp = row + (size_t)row_width - 1;
                shift = (int)((row_width & 0x01) << 2);
                for (i = 0; i < row_width; i++)
                {
@@ -4329,8 +4329,8 @@ png_do_expand_palette(png_row_infop row_info, png_bytep row,
          {
             if (num_trans > 0)
             {
-               sp = row + (png_size_t)row_width - 1;
-               dp = row + (png_size_t)(row_width << 2) - 1;
+               sp = row + (size_t)row_width - 1;
+               dp = row + ((size_t)row_width << 2) - 1;
 
                for (i = 0; i < row_width; i++)
                {
@@ -4354,8 +4354,8 @@ png_do_expand_palette(png_row_infop row_info, png_bytep row,
 
             else
             {
-               sp = row + (png_size_t)row_width - 1;
-               dp = row + (png_size_t)(row_width * 3) - 1;
+               sp = row + (size_t)row_width - 1;
+               dp = row + (size_t)(row_width * 3) - 1;
 
                for (i = 0; i < row_width; i++)
                {
@@ -4390,195 +4390,130 @@ png_do_expand(png_row_infop row_info, png_bytep row,
 
    png_debug(1, "in png_do_expand");
 
+   if (row_info->color_type == PNG_COLOR_TYPE_GRAY)
    {
-      if (row_info->color_type == PNG_COLOR_TYPE_GRAY)
-      {
-         unsigned int gray = trans_color != NULL ? trans_color->gray : 0;
+      unsigned int gray = trans_color != NULL ? trans_color->gray : 0;
 
-         if (row_info->bit_depth < 8)
+      if (row_info->bit_depth < 8)
+      {
+         switch (row_info->bit_depth)
          {
-            switch (row_info->bit_depth)
+            case 1:
             {
-               case 1:
+               gray = (gray & 0x01) * 0xff;
+               sp = row + (size_t)((row_width - 1) >> 3);
+               dp = row + (size_t)row_width - 1;
+               shift = 7 - (int)((row_width + 7) & 0x07);
+               for (i = 0; i < row_width; i++)
                {
-                  gray = (gray & 0x01) * 0xff;
-                  sp = row + (png_size_t)((row_width - 1) >> 3);
-                  dp = row + (png_size_t)row_width - 1;
-                  shift = 7 - (int)((row_width + 7) & 0x07);
-                  for (i = 0; i < row_width; i++)
-                  {
-                     if ((*sp >> shift) & 0x01)
-                        *dp = 0xff;
-
-                     else
-                        *dp = 0;
-
-                     if (shift == 7)
-                     {
-                        shift = 0;
-                        sp--;
-                     }
-
-                     else
-                        shift++;
+                  if ((*sp >> shift) & 0x01)
+                     *dp = 0xff;
 
-                     dp--;
-                  }
-                  break;
-               }
+                  else
+                     *dp = 0;
 
-               case 2:
-               {
-                  gray = (gray & 0x03) * 0x55;
-                  sp = row + (png_size_t)((row_width - 1) >> 2);
-                  dp = row + (png_size_t)row_width - 1;
-                  shift = (int)((3 - ((row_width + 3) & 0x03)) << 1);
-                  for (i = 0; i < row_width; i++)
+                  if (shift == 7)
                   {
-                     value = (*sp >> shift) & 0x03;
-                     *dp = (png_byte)(value | (value << 2) | (value << 4) |
-                        (value << 6));
-                     if (shift == 6)
-                     {
-                        shift = 0;
-                        sp--;
-                     }
-
-                     else
-                        shift += 2;
-
-                     dp--;
+                     shift = 0;
+                     sp--;
                   }
-                  break;
-               }
-
-               case 4:
-               {
-                  gray = (gray & 0x0f) * 0x11;
-                  sp = row + (png_size_t)((row_width - 1) >> 1);
-                  dp = row + (png_size_t)row_width - 1;
-                  shift = (int)((1 - ((row_width + 1) & 0x01)) << 2);
-                  for (i = 0; i < row_width; i++)
-                  {
-                     value = (*sp >> shift) & 0x0f;
-                     *dp = (png_byte)(value | (value << 4));
-                     if (shift == 4)
-                     {
-                        shift = 0;
-                        sp--;
-                     }
 
-                     else
-                        shift = 4;
+                  else
+                     shift++;
 
-                     dp--;
-                  }
-                  break;
+                  dp--;
                }
-
-               default:
-                  break;
+               break;
             }
 
-            row_info->bit_depth = 8;
-            row_info->pixel_depth = 8;
-            row_info->rowbytes = row_width;
-         }
-
-         if (trans_color != NULL)
-         {
-            if (row_info->bit_depth == 8)
+            case 2:
             {
-               gray = gray & 0xff;
-               sp = row + (png_size_t)row_width - 1;
-               dp = row + (png_size_t)(row_width << 1) - 1;
-
+               gray = (gray & 0x03) * 0x55;
+               sp = row + (size_t)((row_width - 1) >> 2);
+               dp = row + (size_t)row_width - 1;
+               shift = (int)((3 - ((row_width + 3) & 0x03)) << 1);
                for (i = 0; i < row_width; i++)
                {
-                  if ((*sp & 0xffU) == gray)
-                     *dp-- = 0;
+                  value = (*sp >> shift) & 0x03;
+                  *dp = (png_byte)(value | (value << 2) | (value << 4) |
+                     (value << 6));
+                  if (shift == 6)
+                  {
+                     shift = 0;
+                     sp--;
+                  }
 
                   else
-                     *dp-- = 0xff;
+                     shift += 2;
 
-                  *dp-- = *sp--;
+                  dp--;
                }
+               break;
             }
 
-            else if (row_info->bit_depth == 16)
+            case 4:
             {
-               unsigned int gray_high = (gray >> 8) & 0xff;
-               unsigned int gray_low = gray & 0xff;
-               sp = row + row_info->rowbytes - 1;
-               dp = row + (row_info->rowbytes << 1) - 1;
+               gray = (gray & 0x0f) * 0x11;
+               sp = row + (size_t)((row_width - 1) >> 1);
+               dp = row + (size_t)row_width - 1;
+               shift = (int)((1 - ((row_width + 1) & 0x01)) << 2);
                for (i = 0; i < row_width; i++)
                {
-                  if ((*(sp - 1) & 0xffU) == gray_high &&
-                      (*(sp) & 0xffU) == gray_low)
+                  value = (*sp >> shift) & 0x0f;
+                  *dp = (png_byte)(value | (value << 4));
+                  if (shift == 4)
                   {
-                     *dp-- = 0;
-                     *dp-- = 0;
+                     shift = 0;
+                     sp--;
                   }
 
                   else
-                  {
-                     *dp-- = 0xff;
-                     *dp-- = 0xff;
-                  }
+                     shift = 4;
 
-                  *dp-- = *sp--;
-                  *dp-- = *sp--;
+                  dp--;
                }
+               break;
             }
 
-            row_info->color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
-            row_info->channels = 2;
-            row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1);
-            row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,
-                row_width);
+            default:
+               break;
          }
+
+         row_info->bit_depth = 8;
+         row_info->pixel_depth = 8;
+         row_info->rowbytes = row_width;
       }
-      else if (row_info->color_type == PNG_COLOR_TYPE_RGB &&
-          trans_color != NULL)
+
+      if (trans_color != NULL)
       {
          if (row_info->bit_depth == 8)
          {
-            png_byte red = (png_byte)(trans_color->red & 0xff);
-            png_byte green = (png_byte)(trans_color->green & 0xff);
-            png_byte blue = (png_byte)(trans_color->blue & 0xff);
-            sp = row + (png_size_t)row_info->rowbytes - 1;
-            dp = row + (png_size_t)(row_width << 2) - 1;
+            gray = gray & 0xff;
+            sp = row + (size_t)row_width - 1;
+            dp = row + ((size_t)row_width << 1) - 1;
+
             for (i = 0; i < row_width; i++)
             {
-               if (*(sp - 2) == red && *(sp - 1) == green && *(sp) == blue)
+               if ((*sp & 0xffU) == gray)
                   *dp-- = 0;
 
                else
                   *dp-- = 0xff;
 
                *dp-- = *sp--;
-               *dp-- = *sp--;
-               *dp-- = *sp--;
             }
          }
+
          else if (row_info->bit_depth == 16)
          {
-            png_byte red_high = (png_byte)((trans_color->red >> 8) & 0xff);
-            png_byte green_high = (png_byte)((trans_color->green >> 8) & 0xff);
-            png_byte blue_high = (png_byte)((trans_color->blue >> 8) & 0xff);
-            png_byte red_low = (png_byte)(trans_color->red & 0xff);
-            png_byte green_low = (png_byte)(trans_color->green & 0xff);
-            png_byte blue_low = (png_byte)(trans_color->blue & 0xff);
+            unsigned int gray_high = (gray >> 8) & 0xff;
+            unsigned int gray_low = gray & 0xff;
             sp = row + row_info->rowbytes - 1;
-            dp = row + (png_size_t)(row_width << 3) - 1;
+            dp = row + (row_info->rowbytes << 1) - 1;
             for (i = 0; i < row_width; i++)
             {
-               if (*(sp - 5) == red_high &&
-                   *(sp - 4) == red_low &&
-                   *(sp - 3) == green_high &&
-                   *(sp - 2) == green_low &&
-                   *(sp - 1) == blue_high &&
-                   *(sp    ) == blue_low)
+               if ((*(sp - 1) & 0xffU) == gray_high &&
+                   (*(sp) & 0xffU) == gray_low)
                {
                   *dp-- = 0;
                   *dp-- = 0;
@@ -4592,17 +4527,80 @@ png_do_expand(png_row_infop row_info, png_bytep row,
 
                *dp-- = *sp--;
                *dp-- = *sp--;
-               *dp-- = *sp--;
-               *dp-- = *sp--;
-               *dp-- = *sp--;
-               *dp-- = *sp--;
             }
          }
-         row_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA;
-         row_info->channels = 4;
-         row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2);
-         row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
+
+         row_info->color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
+         row_info->channels = 2;
+         row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1);
+         row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,
+             row_width);
+      }
+   }
+   else if (row_info->color_type == PNG_COLOR_TYPE_RGB &&
+       trans_color != NULL)
+   {
+      if (row_info->bit_depth == 8)
+      {
+         png_byte red = (png_byte)(trans_color->red & 0xff);
+         png_byte green = (png_byte)(trans_color->green & 0xff);
+         png_byte blue = (png_byte)(trans_color->blue & 0xff);
+         sp = row + (size_t)row_info->rowbytes - 1;
+         dp = row + ((size_t)row_width << 2) - 1;
+         for (i = 0; i < row_width; i++)
+         {
+            if (*(sp - 2) == red && *(sp - 1) == green && *(sp) == blue)
+               *dp-- = 0;
+
+            else
+               *dp-- = 0xff;
+
+            *dp-- = *sp--;
+            *dp-- = *sp--;
+            *dp-- = *sp--;
+         }
+      }
+      else if (row_info->bit_depth == 16)
+      {
+         png_byte red_high = (png_byte)((trans_color->red >> 8) & 0xff);
+         png_byte green_high = (png_byte)((trans_color->green >> 8) & 0xff);
+         png_byte blue_high = (png_byte)((trans_color->blue >> 8) & 0xff);
+         png_byte red_low = (png_byte)(trans_color->red & 0xff);
+         png_byte green_low = (png_byte)(trans_color->green & 0xff);
+         png_byte blue_low = (png_byte)(trans_color->blue & 0xff);
+         sp = row + row_info->rowbytes - 1;
+         dp = row + ((size_t)row_width << 3) - 1;
+         for (i = 0; i < row_width; i++)
+         {
+            if (*(sp - 5) == red_high &&
+                *(sp - 4) == red_low &&
+                *(sp - 3) == green_high &&
+                *(sp - 2) == green_low &&
+                *(sp - 1) == blue_high &&
+                *(sp    ) == blue_low)
+            {
+               *dp-- = 0;
+               *dp-- = 0;
+            }
+
+            else
+            {
+               *dp-- = 0xff;
+               *dp-- = 0xff;
+            }
+
+            *dp-- = *sp--;
+            *dp-- = *sp--;
+            *dp-- = *sp--;
+            *dp-- = *sp--;
+            *dp-- = *sp--;
+            *dp-- = *sp--;
+         }
       }
+      row_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+      row_info->channels = 4;
+      row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2);
+      row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width);
    }
 }
 #endif
@@ -4629,7 +4627,9 @@ png_do_expand_16(png_row_infop row_info, png_bytep row)
       png_byte *sp = row + row_info->rowbytes; /* source, last byte + 1 */
       png_byte *dp = sp + row_info->rowbytes;  /* destination, end + 1 */
       while (dp > sp)
-         dp[-2] = dp[-1] = *--sp, dp -= 2;
+      {
+         dp[-2] = dp[-1] = *--sp; dp -= 2;
+      }
 
       row_info->rowbytes *= 2;
       row_info->bit_depth = 16;
@@ -4783,8 +4783,7 @@ png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info)
                 &(png_ptr->trans_color));
 
          else
-            png_do_expand(row_info, png_ptr->row_buf + 1,
-                NULL);
+            png_do_expand(row_info, png_ptr->row_buf + 1, NULL);
       }
    }
 #endif
@@ -5008,7 +5007,7 @@ png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info)
              (png_ptr,     /* png_ptr */
              row_info,     /* row_info: */
                 /*  png_uint_32 width;       width of row */
-                /*  png_size_t rowbytes;     number of bytes in row */
+                /*  size_t rowbytes;         number of bytes in row */
                 /*  png_byte color_type;     color type of pixels */
                 /*  png_byte bit_depth;      bit depth of samples */
                 /*  png_byte channels;       number of channels (1-4) */

src/share/native/sun/awt/libpng/pngrutil.c

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.27 [January 5, 2017]
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -130,7 +130,7 @@ png_get_int_32)(png_const_bytep buf)
 png_uint_16 (PNGAPI
 png_get_uint_16)(png_const_bytep buf)
 {
-   /* ANSI-C requires an int value to accomodate at least 16 bits so this
+   /* ANSI-C requires an int value to accommodate at least 16 bits so this
     * works and allows the compiler not to worry about possible narrowing
     * on 32-bit systems.  (Pre-ANSI systems did not make integers smaller
     * than 16 bits either.)
@@ -148,7 +148,7 @@ png_get_uint_16)(png_const_bytep buf)
 void /* PRIVATE */
 png_read_sig(png_structrp png_ptr, png_inforp info_ptr)
 {
-   png_size_t num_checked, num_to_check;
+   size_t num_checked, num_to_check;
 
    /* Exit if the user application does not expect a signature. */
    if (png_ptr->sig_bytes >= 8)
@@ -209,6 +209,9 @@ png_read_chunk_header(png_structrp png_ptr)
    /* Check to see if chunk name is valid. */
    png_check_chunk_name(png_ptr, png_ptr->chunk_name);
 
+   /* Check for too-large chunk length */
+   png_check_chunk_length(png_ptr, length);
+
 #ifdef PNG_IO_STATE_SUPPORTED
    png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_DATA;
 #endif
@@ -339,6 +342,7 @@ png_read_buffer(png_structrp png_ptr, png_alloc_size_t new_size, int warn)
 
       if (buffer != NULL)
       {
+         memset(buffer, 0, new_size); /* just in case */
          png_ptr->read_buffer = buffer;
          png_ptr->read_buffer_size = new_size;
       }
@@ -446,7 +450,7 @@ png_inflate_claim(png_structrp png_ptr, png_uint_32 owner)
             png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED;
       }
 
-#if ZLIB_VERNUM >= 0x1281 && \
+#if ZLIB_VERNUM >= 0x1290 && \
    defined(PNG_SET_OPTION_SUPPORTED) && defined(PNG_IGNORE_ADLER32)
       if (((png_ptr->options >> PNG_IGNORE_ADLER32) & 3) == PNG_OPTION_ON)
          /* Turn off validation of the ADLER32 checksum in IDAT chunks */
@@ -698,6 +702,8 @@ png_decompress_chunk(png_structrp png_ptr,
 
                if (text != NULL)
                {
+                  memset(text, 0, buffer_size);
+
                   ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/,
                       png_ptr->read_buffer + prefix_size, &lzsize,
                       text + prefix_size, newlength);
@@ -761,9 +767,7 @@ png_decompress_chunk(png_structrp png_ptr,
             {
                /* inflateReset failed, store the error message */
                png_zstream_error(png_ptr, ret);
-
-               if (ret == Z_STREAM_END)
-                  ret = PNG_UNEXPECTED_ZLIB_RETURN;
+               ret = PNG_UNEXPECTED_ZLIB_RETURN;
             }
          }
 
@@ -1405,11 +1409,13 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
     * chunk is just ignored, so does not invalidate the color space.  An
     * alternative is to set the 'invalid' flags at the start of this routine
     * and only clear them in they were not set before and all the tests pass.
-    * The minimum 'deflate' stream is assumed to be just the 2 byte header and
-    * 4 byte checksum.  The keyword must be at least one character and there is
-    * a terminator (0) byte and the compression method.
     */
-   if (length < 9)
+
+   /* The keyword must be at least one character and there is a
+    * terminator (0) byte and the compression method byte, and the
+    * 'zlib' datastream is at least 11 bytes.
+    */
+   if (length < 14)
    {
       png_crc_finish(png_ptr, length);
       png_chunk_benign_error(png_ptr, "too short");
@@ -1441,6 +1447,16 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
       png_crc_read(png_ptr, (png_bytep)keyword, read_length);
       length -= read_length;
 
+      /* The minimum 'zlib' stream is assumed to be just the 2 byte header,
+       * 5 bytes minimum 'deflate' stream, and the 4 byte checksum.
+       */
+      if (length < 11)
+      {
+         png_crc_finish(png_ptr, length);
+         png_chunk_benign_error(png_ptr, "too short");
+         return;
+      }
+
       keyword_length = 0;
       while (keyword_length < 80 && keyword_length < read_length &&
          keyword[keyword_length] != 0)
@@ -1459,7 +1475,7 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
 
             if (png_inflate_claim(png_ptr, png_iCCP) == Z_OK)
             {
-               Byte profile_header[132];
+               Byte profile_header[132]={0};
                Byte local_buffer[PNG_INFLATE_BUF_SIZE];
                png_alloc_size_t size = (sizeof profile_header);
 
@@ -1489,7 +1505,7 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
                         /* Now read the tag table; a variable size buffer is
                          * needed at this point, allocate one for the whole
                          * profile.  The header check has already validated
-                         * that none of these stuff will overflow.
+                         * that none of this stuff will overflow.
                          */
                         const png_uint_32 tag_count = png_get_uint_32(
                             profile_header+128);
@@ -1596,19 +1612,11 @@ png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
                                        return;
                                     }
                                  }
-
-                                 else if (size > 0)
-                                    errmsg = "truncated";
-
-#ifndef __COVERITY__
-                                 else
+                                 if (errmsg == NULL)
                                     errmsg = png_ptr->zstream.msg;
-#endif
                               }
-
                               /* else png_icc_check_tag_table output an error */
                            }
-
                            else /* profile truncated */
                               errmsg = png_ptr->zstream.msg;
                         }
@@ -1668,7 +1676,7 @@ png_handle_sPLT(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
    int entry_size, i;
    png_uint_32 skip = 0;
    png_uint_32 dl;
-   png_size_t max_dl;
+   size_t max_dl;
 
    png_debug(1, "in png_handle_sPLT");
 
@@ -2017,6 +2025,15 @@ png_handle_bKGD(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
 
    else if ((png_ptr->color_type & PNG_COLOR_MASK_COLOR) == 0) /* GRAY */
    {
+      if (png_ptr->bit_depth <= 8)
+      {
+         if (buf[0] != 0 || buf[1] >= (unsigned int)(1 << png_ptr->bit_depth))
+         {
+            png_chunk_benign_error(png_ptr, "invalid gray level");
+            return;
+         }
+      }
+
       background.index = 0;
       background.red =
       background.green =
@@ -2026,6 +2043,15 @@ png_handle_bKGD(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
 
    else
    {
+      if (png_ptr->bit_depth <= 8)
+      {
+         if (buf[0] != 0 || buf[2] != 0 || buf[4] != 0)
+         {
+            png_chunk_benign_error(png_ptr, "invalid color");
+            return;
+         }
+      }
+
       background.index = 0;
       background.red = png_get_uint_16(buf);
       background.green = png_get_uint_16(buf + 2);
@@ -2037,6 +2063,69 @@ png_handle_bKGD(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
 }
 #endif
 
+#ifdef PNG_READ_eXIf_SUPPORTED
+void /* PRIVATE */
+png_handle_eXIf(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
+{
+   unsigned int i;
+
+   png_debug(1, "in png_handle_eXIf");
+
+   if ((png_ptr->mode & PNG_HAVE_IHDR) == 0)
+      png_chunk_error(png_ptr, "missing IHDR");
+
+   if (length < 2)
+   {
+      png_crc_finish(png_ptr, length);
+      png_chunk_benign_error(png_ptr, "too short");
+      return;
+   }
+
+   else if (info_ptr == NULL || (info_ptr->valid & PNG_INFO_eXIf) != 0)
+   {
+      png_crc_finish(png_ptr, length);
+      png_chunk_benign_error(png_ptr, "duplicate");
+      return;
+   }
+
+   info_ptr->free_me |= PNG_FREE_EXIF;
+
+   info_ptr->eXIf_buf = png_voidcast(png_bytep,
+             png_malloc_warn(png_ptr, length));
+
+   if (info_ptr->eXIf_buf == NULL)
+   {
+      png_crc_finish(png_ptr, length);
+      png_chunk_benign_error(png_ptr, "out of memory");
+      return;
+   }
+
+   for (i = 0; i < length; i++)
+   {
+      png_byte buf[1];
+      png_crc_read(png_ptr, buf, 1);
+      info_ptr->eXIf_buf[i] = buf[0];
+      if (i == 1 && buf[0] != 'M' && buf[0] != 'I'
+                 && info_ptr->eXIf_buf[0] != buf[0])
+      {
+         png_crc_finish(png_ptr, length);
+         png_chunk_benign_error(png_ptr, "incorrect byte-order specifier");
+         png_free(png_ptr, info_ptr->eXIf_buf);
+         info_ptr->eXIf_buf = NULL;
+         return;
+      }
+   }
+
+   if (png_crc_finish(png_ptr, 0) != 0)
+      return;
+
+   png_set_eXIf_1(png_ptr, info_ptr, length, info_ptr->eXIf_buf);
+
+   png_free(png_ptr, info_ptr->eXIf_buf);
+   info_ptr->eXIf_buf = NULL;
+}
+#endif
+
 #ifdef PNG_READ_hIST_SUPPORTED
 void /* PRIVATE */
 png_handle_hIST(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
@@ -2316,7 +2405,7 @@ void /* PRIVATE */
 png_handle_sCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
 {
    png_bytep buffer;
-   png_size_t i;
+   size_t i;
    int state;
 
    png_debug(1, "in png_handle_sCAL");
@@ -2386,7 +2475,7 @@ png_handle_sCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
 
    else
    {
-      png_size_t heighti = i;
+      size_t heighti = i;
 
       state = 0;
       if (png_check_fp_number((png_const_charp)buffer, length,
@@ -2565,6 +2654,9 @@ png_handle_zTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
    if ((png_ptr->mode & PNG_HAVE_IDAT) != 0)
       png_ptr->mode |= PNG_AFTER_IDAT;
 
+   /* Note, "length" is sufficient here; we won't be adding
+    * a null terminator later.
+    */
    buffer = png_read_buffer(png_ptr, length, 2/*silent*/);
 
    if (buffer == NULL)
@@ -2611,23 +2703,28 @@ png_handle_zTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
       {
          png_text text;
 
-         /* It worked; png_ptr->read_buffer now looks like a tEXt chunk except
-          * for the extra compression type byte and the fact that it isn't
-          * necessarily '\0' terminated.
-          */
-         buffer = png_ptr->read_buffer;
-         buffer[uncompressed_length+(keyword_length+2)] = 0;
-
-         text.compression = PNG_TEXT_COMPRESSION_zTXt;
-         text.key = (png_charp)buffer;
-         text.text = (png_charp)(buffer + keyword_length+2);
-         text.text_length = uncompressed_length;
-         text.itxt_length = 0;
-         text.lang = NULL;
-         text.lang_key = NULL;
-
-         if (png_set_text_2(png_ptr, info_ptr, &text, 1) != 0)
-            errmsg = "insufficient memory";
+         if (png_ptr->read_buffer == NULL)
+           errmsg="Read failure in png_handle_zTXt";
+         else
+         {
+            /* It worked; png_ptr->read_buffer now looks like a tEXt chunk
+             * except for the extra compression type byte and the fact that
+             * it isn't necessarily '\0' terminated.
+             */
+            buffer = png_ptr->read_buffer;
+            buffer[uncompressed_length+(keyword_length+2)] = 0;
+
+            text.compression = PNG_TEXT_COMPRESSION_zTXt;
+            text.key = (png_charp)buffer;
+            text.text = (png_charp)(buffer + keyword_length+2);
+            text.text_length = uncompressed_length;
+            text.itxt_length = 0;
+            text.lang = NULL;
+            text.lang_key = NULL;
+
+            if (png_set_text_2(png_ptr, info_ptr, &text, 1) != 0)
+               errmsg = "insufficient memory";
+         }
       }
 
       else
@@ -2816,7 +2913,7 @@ png_cache_unknown_chunk(png_structrp png_ptr, png_uint_32 length)
    {
       PNG_CSTRING_FROM_CHUNK(png_ptr->unknown_chunk.name, png_ptr->chunk_name);
       /* The following is safe because of the PNG_SIZE_MAX init above */
-      png_ptr->unknown_chunk.size = (png_size_t)length/*SAFE*/;
+      png_ptr->unknown_chunk.size = (size_t)length/*SAFE*/;
       /* 'mode' is a flag array, only the bottom four bits matter here */
       png_ptr->unknown_chunk.location = (png_byte)png_ptr->mode/*SAFE*/;
 
@@ -3003,7 +3100,7 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
          case 2:
             png_ptr->user_chunk_cache_max = 1;
             png_chunk_benign_error(png_ptr, "no space in chunk cache");
-            /* FALL THROUGH */
+            /* FALLTHROUGH */
          case 1:
             /* NOTE: prior to 1.6.0 this case resulted in an unknown critical
              * chunk being skipped, now there will be a hard error below.
@@ -3012,7 +3109,7 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
 
          default: /* not at limit */
             --(png_ptr->user_chunk_cache_max);
-            /* FALL THROUGH */
+            /* FALLTHROUGH */
          case 0: /* no limit */
 #  endif /* USER_LIMITS */
             /* Here when the limit isn't reached or when limits are compiled
@@ -3063,20 +3160,61 @@ png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr,
  */
 
 void /* PRIVATE */
-png_check_chunk_name(png_structrp png_ptr, png_uint_32 chunk_name)
+png_check_chunk_name(png_const_structrp png_ptr, const png_uint_32 chunk_name)
 {
    int i;
+   png_uint_32 cn=chunk_name;
 
    png_debug(1, "in png_check_chunk_name");
 
    for (i=1; i<=4; ++i)
    {
-      int c = chunk_name & 0xff;
+      int c = cn & 0xff;
 
       if (c < 65 || c > 122 || (c > 90 && c < 97))
          png_chunk_error(png_ptr, "invalid chunk type");
 
-      chunk_name >>= 8;
+      cn >>= 8;
+   }
+}
+
+void /* PRIVATE */
+png_check_chunk_length(png_const_structrp png_ptr, const png_uint_32 length)
+{
+   png_alloc_size_t limit = PNG_UINT_31_MAX;
+
+# ifdef PNG_SET_USER_LIMITS_SUPPORTED
+   if (png_ptr->user_chunk_malloc_max > 0 &&
+       png_ptr->user_chunk_malloc_max < limit)
+      limit = png_ptr->user_chunk_malloc_max;
+# elif PNG_USER_CHUNK_MALLOC_MAX > 0
+   if (PNG_USER_CHUNK_MALLOC_MAX < limit)
+      limit = PNG_USER_CHUNK_MALLOC_MAX;
+# endif
+   if (png_ptr->chunk_name == png_IDAT)
+   {
+      png_alloc_size_t idat_limit = PNG_UINT_31_MAX;
+      size_t row_factor =
+         (size_t)png_ptr->width
+         * (size_t)png_ptr->channels
+         * (png_ptr->bit_depth > 8? 2: 1)
+         + 1
+         + (png_ptr->interlaced? 6: 0);
+      if (png_ptr->height > PNG_UINT_32_MAX/row_factor)
+         idat_limit = PNG_UINT_31_MAX;
+      else
+         idat_limit = png_ptr->height * row_factor;
+      row_factor = row_factor > 32566? 32566 : row_factor;
+      idat_limit += 6 + 5*(idat_limit/row_factor+1); /* zlib+deflate overhead */
+      idat_limit=idat_limit < PNG_UINT_31_MAX? idat_limit : PNG_UINT_31_MAX;
+      limit = limit < idat_limit? idat_limit : limit;
+   }
+
+   if (length > limit)
+   {
+      png_debug2(0," length = %lu, limit = %lu",
+         (unsigned long)length,(unsigned long)limit);
+      png_chunk_error(png_ptr, "chunk data is too large");
    }
 }
 
@@ -3405,7 +3543,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
                 */
                do
                {
-                  dp[0] = sp[0], dp[1] = sp[1];
+                  dp[0] = sp[0]; dp[1] = sp[1];
 
                   if (row_width <= bytes_to_jump)
                      return;
@@ -3426,7 +3564,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display)
                 */
                for (;;)
                {
-                  dp[0] = sp[0], dp[1] = sp[1], dp[2] = sp[2];
+                  dp[0] = sp[0]; dp[1] = sp[1]; dp[2] = sp[2];
 
                   if (row_width <= bytes_to_jump)
                      return;
@@ -3590,8 +3728,8 @@ png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
       {
          case 1:
          {
-            png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 3);
-            png_bytep dp = row + (png_size_t)((final_width - 1) >> 3);
+            png_bytep sp = row + (size_t)((row_info->width - 1) >> 3);
+            png_bytep dp = row + (size_t)((final_width - 1) >> 3);
             unsigned int sshift, dshift;
             unsigned int s_start, s_end;
             int s_inc;
@@ -3717,8 +3855,8 @@ png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
 
          case 4:
          {
-            png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 1);
-            png_bytep dp = row + (png_size_t)((final_width - 1) >> 1);
+            png_bytep sp = row + (size_t)((row_info->width - 1) >> 1);
+            png_bytep dp = row + (size_t)((final_width - 1) >> 1);
             unsigned int sshift, dshift;
             unsigned int s_start, s_end;
             int s_inc;
@@ -3780,12 +3918,12 @@ png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
 
          default:
          {
-            png_size_t pixel_bytes = (row_info->pixel_depth >> 3);
+            size_t pixel_bytes = (row_info->pixel_depth >> 3);
 
-            png_bytep sp = row + (png_size_t)(row_info->width - 1)
+            png_bytep sp = row + (size_t)(row_info->width - 1)
                 * pixel_bytes;
 
-            png_bytep dp = row + (png_size_t)(final_width - 1) * pixel_bytes;
+            png_bytep dp = row + (size_t)(final_width - 1) * pixel_bytes;
 
             int jstop = (int)png_pass_inc[pass];
             png_uint_32 i;
@@ -3822,8 +3960,8 @@ static void
 png_read_filter_row_sub(png_row_infop row_info, png_bytep row,
     png_const_bytep prev_row)
 {
-   png_size_t i;
-   png_size_t istop = row_info->rowbytes;
+   size_t i;
+   size_t istop = row_info->rowbytes;
    unsigned int bpp = (row_info->pixel_depth + 7) >> 3;
    png_bytep rp = row + bpp;
 
@@ -3840,8 +3978,8 @@ static void
 png_read_filter_row_up(png_row_infop row_info, png_bytep row,
     png_const_bytep prev_row)
 {
-   png_size_t i;
-   png_size_t istop = row_info->rowbytes;
+   size_t i;
+   size_t istop = row_info->rowbytes;
    png_bytep rp = row;
    png_const_bytep pp = prev_row;
 
@@ -3856,11 +3994,11 @@ static void
 png_read_filter_row_avg(png_row_infop row_info, png_bytep row,
     png_const_bytep prev_row)
 {
-   png_size_t i;
+   size_t i;
    png_bytep rp = row;
    png_const_bytep pp = prev_row;
    unsigned int bpp = (row_info->pixel_depth + 7) >> 3;
-   png_size_t istop = row_info->rowbytes - bpp;
+   size_t istop = row_info->rowbytes - bpp;
 
    for (i = 0; i < bpp; i++)
    {
@@ -3915,7 +4053,10 @@ png_read_filter_row_paeth_1byte_pixel(png_row_infop row_info, png_bytep row,
       /* Find the best predictor, the least of pa, pb, pc favoring the earlier
        * ones in the case of a tie.
        */
-      if (pb < pa) pa = pb, a = b;
+      if (pb < pa)
+      {
+         pa = pb; a = b;
+      }
       if (pc < pa) a = c;
 
       /* Calculate the current pixel in a, and move the previous row pixel to c
@@ -3967,7 +4108,10 @@ png_read_filter_row_paeth_multibyte_pixel(png_row_infop row_info, png_bytep row,
       pc = (p + pc) < 0 ? -(p + pc) : p + pc;
 #endif
 
-      if (pb < pa) pa = pb, a = b;
+      if (pb < pa)
+      {
+         pa = pb; a = b;
+      }
       if (pc < pa) a = c;
 
       a += *row;
@@ -4290,7 +4434,7 @@ png_read_start_row(png_structrp png_ptr)
    static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2};
 
    unsigned int max_pixel_depth;
-   png_size_t row_bytes;
+   size_t row_bytes;
 
    png_debug(1, "in png_read_start_row");
 

src/share/native/sun/awt/libpng/pngset.c

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.26 [October 20, 2016]
- * Copyright (c) 1998-2016 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2018 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.)
  *
@@ -162,6 +162,53 @@ png_set_cHRM_XYZ(png_const_structrp png_ptr, png_inforp info_ptr, double red_X,
 
 #endif /* cHRM */
 
+#ifdef PNG_eXIf_SUPPORTED
+void PNGAPI
+png_set_eXIf(png_const_structrp png_ptr, png_inforp info_ptr,
+    const png_bytep eXIf_buf)
+{
+  png_warning(png_ptr, "png_set_eXIf does not work; use png_set_eXIf_1");
+  PNG_UNUSED(info_ptr)
+  PNG_UNUSED(eXIf_buf)
+}
+
+void PNGAPI
+png_set_eXIf_1(png_const_structrp png_ptr, png_inforp info_ptr,
+    const png_uint_32 num_exif, const png_bytep eXIf_buf)
+{
+   int i;
+
+   png_debug1(1, "in %s storage function", "eXIf");
+
+   if (png_ptr == NULL || info_ptr == NULL)
+      return;
+
+   if (info_ptr->exif)
+   {
+      png_free(png_ptr, info_ptr->exif);
+      info_ptr->exif = NULL;
+   }
+
+   info_ptr->num_exif = num_exif;
+
+   info_ptr->exif = png_voidcast(png_bytep, png_malloc_warn(png_ptr,
+       info_ptr->num_exif));
+
+   if (info_ptr->exif == NULL)
+   {
+      png_warning(png_ptr, "Insufficient memory for eXIf chunk data");
+      return;
+   }
+
+   info_ptr->free_me |= PNG_FREE_EXIF;
+
+   for (i = 0; i < (int) info_ptr->num_exif; i++)
+      info_ptr->exif[i] = eXIf_buf[i];
+
+   info_ptr->valid |= PNG_INFO_eXIf;
+}
+#endif /* eXIf */
+
 #ifdef PNG_gAMA_SUPPORTED
 void PNGFAPI
 png_set_gAMA_fixed(png_const_structrp png_ptr, png_inforp info_ptr,
@@ -294,7 +341,7 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
     png_const_charp purpose, png_int_32 X0, png_int_32 X1, int type,
     int nparams, png_const_charp units, png_charpp params)
 {
-   png_size_t length;
+   size_t length;
    int i;
 
    png_debug1(1, "in %s storage function", "pCAL");
@@ -371,7 +418,7 @@ png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr,
    memcpy(info_ptr->pcal_units, units, length);
 
    info_ptr->pcal_params = png_voidcast(png_charpp, png_malloc_warn(png_ptr,
-       (png_size_t)(((unsigned int)nparams + 1) * (sizeof (png_charp)))));
+       (size_t)(((unsigned int)nparams + 1) * (sizeof (png_charp)))));
 
    if (info_ptr->pcal_params == NULL)
    {
@@ -411,7 +458,7 @@ void PNGAPI
 png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr,
     int unit, png_const_charp swidth, png_const_charp sheight)
 {
-   png_size_t lengthw = 0, lengthh = 0;
+   size_t lengthw = 0, lengthh = 0;
 
    png_debug1(1, "in %s storage function", "sCAL");
 
@@ -672,7 +719,7 @@ png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr,
 {
    png_charp new_iccp_name;
    png_bytep new_iccp_profile;
-   png_size_t length;
+   size_t length;
 
    png_debug1(1, "in %s storage function", "iCCP");
 
@@ -999,7 +1046,7 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
          /* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */
           info_ptr->trans_alpha = png_voidcast(png_bytep,
               png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH));
-          memcpy(info_ptr->trans_alpha, trans_alpha, (png_size_t)num_trans);
+          memcpy(info_ptr->trans_alpha, trans_alpha, (size_t)num_trans);
        }
        png_ptr->trans_alpha = info_ptr->trans_alpha;
    }
@@ -1079,7 +1126,7 @@ png_set_sPLT(png_const_structrp png_ptr,
 
    do
    {
-      png_size_t length;
+      size_t length;
 
       /* Skip invalid input entries */
       if (entries->name == NULL || entries->entries == NULL)
@@ -1130,8 +1177,9 @@ png_set_sPLT(png_const_structrp png_ptr,
       info_ptr->valid |= PNG_INFO_sPLT;
       ++(info_ptr->splt_palettes_num);
       ++np;
+      ++entries;
    }
-   while (++entries, --nentries);
+   while (--nentries);
 
    if (nentries > 0)
       png_chunk_report(png_ptr, "sPLT out of memory", PNG_CHUNK_WRITE_ERROR);
@@ -1382,6 +1430,7 @@ png_set_keep_unknown_chunks(png_structrp png_ptr, int keep,
       static PNG_CONST png_byte chunks_to_ignore[] = {
          98,  75,  71,  68, '\0',  /* bKGD */
          99,  72,  82,  77, '\0',  /* cHRM */
+        101,  88,  73, 102, '\0',  /* eXIf */
         103,  65,  77,  65, '\0',  /* gAMA */
         104,  73,  83,  84, '\0',  /* hIST */
         105,  67,  67,  80, '\0',  /* iCCP */
@@ -1542,7 +1591,7 @@ png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr,
 #endif
 
 void PNGAPI
-png_set_compression_buffer_size(png_structrp png_ptr, png_size_t size)
+png_set_compression_buffer_size(png_structrp png_ptr, size_t size)
 {
    if (png_ptr == NULL)
       return;
@@ -1724,14 +1773,16 @@ png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key)
       png_byte ch = (png_byte)*key++;
 
       if ((ch > 32 && ch <= 126) || (ch >= 161 /*&& ch <= 255*/))
-         *new_key++ = ch, ++key_len, space = 0;
+      {
+         *new_key++ = ch; ++key_len; space = 0;
+      }
 
       else if (space == 0)
       {
          /* A space or an invalid character when one wasn't seen immediately
           * before; output just a space.
           */
-         *new_key++ = 32, ++key_len, space = 1;
+         *new_key++ = 32; ++key_len; space = 1;
 
          /* If the character was not a space then it is invalid. */
          if (ch != 32)
@@ -1744,7 +1795,7 @@ png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key)
 
    if (key_len > 0 && space != 0) /* trailing space */
    {
-      --key_len, --new_key;
+      --key_len; --new_key;
       if (bad_character == 0)
          bad_character = 32;
    }

src/share/native/sun/awt/libpng/pngstruct.h

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.28 [January 5, 2017]
- * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -75,7 +75,7 @@
 /* zlib.h declares a magic type 'uInt' that limits the amount of data that zlib
  * can handle at once.  This type need be no larger than 16 bits (so maximum of
  * 65535), this define allows us to discover how big it is, but limited by the
- * maximuum for png_size_t.  The value can be overriden in a library build
+ * maximum for size_t.  The value can be overridden in a library build
  * (pngusr.h, or set it in CPPFLAGS) and it works to set it to a considerably
  * lower value (e.g. 255 works).  A lower value may help memory usage (slightly)
  * and may even improve performance on some systems (and degrade it on others.)
@@ -242,7 +242,7 @@ struct png_struct_def
    png_uint_32 height;        /* height of image in pixels */
    png_uint_32 num_rows;      /* number of rows in current pass */
    png_uint_32 usr_width;     /* width of row at start of write */
-   png_size_t rowbytes;       /* size of row in bytes */
+   size_t rowbytes;           /* size of row in bytes */
    png_uint_32 iwidth;        /* width of current interlaced row in pixels */
    png_uint_32 row_number;    /* current row in interlace pass */
    png_uint_32 chunk_name;    /* PNG_CHUNK() id of current chunk */
@@ -260,7 +260,7 @@ struct png_struct_def
    png_bytep try_row;    /* buffer to save trial row when filtering */
    png_bytep tst_row;    /* buffer to save best trial row when filtering */
 #endif
-   png_size_t info_rowbytes;  /* Added in 1.5.4: cache of updated row bytes */
+   size_t info_rowbytes;      /* Added in 1.5.4: cache of updated row bytes */
 
    png_uint_32 idat_size;     /* current IDAT size for read */
    png_uint_32 crc;           /* current chunk CRC value */
@@ -335,7 +335,7 @@ struct png_struct_def
 #endif
 
 #if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
-   png_color_8 shift;         /* shift for significant bit tranformation */
+   png_color_8 shift;         /* shift for significant bit transformation */
 #endif
 
 #if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \
@@ -356,10 +356,10 @@ struct png_struct_def
    png_bytep current_buffer;         /* buffer for recently used data */
    png_uint_32 push_length;          /* size of current input chunk */
    png_uint_32 skip_length;          /* bytes to skip in input data */
-   png_size_t save_buffer_size;      /* amount of data now in save_buffer */
-   png_size_t save_buffer_max;       /* total size of save_buffer */
-   png_size_t buffer_size;           /* total amount of available input data */
-   png_size_t current_buffer_size;   /* amount of data now in current_buffer */
+   size_t save_buffer_size;          /* amount of data now in save_buffer */
+   size_t save_buffer_max;           /* total size of save_buffer */
+   size_t buffer_size;               /* total amount of available input data */
+   size_t current_buffer_size;       /* amount of data now in current_buffer */
    int process_mode;                 /* what push library is currently doing */
    int cur_palette;                  /* current push library palette index */
 
@@ -479,7 +479,7 @@ struct png_struct_def
 #endif
 
 /* New member added in libpng-1.2.26 */
-  png_size_t old_big_row_buf_size;
+   size_t old_big_row_buf_size;
 
 #ifdef PNG_READ_SUPPORTED
 /* New member added in libpng-1.2.30 */

src/share/native/sun/awt/libpng/pngtrans.c

@@ -29,8 +29,8 @@
  * However, the following notice accompanied the original version of this
  * file and, per its terms, should not be removed:
  *
- * Last changed in libpng 1.6.26 [October 20, 2016]
- * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.35 [July 15, 2018]
+ * Copyright (c) 1998-2002,2004,2006-2018 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.)
  *
@@ -297,8 +297,8 @@ png_do_invert(png_row_infop row_info, png_bytep row)
    if (row_info->color_type == PNG_COLOR_TYPE_GRAY)
    {
       png_bytep rp = row;
-      png_size_t i;
-      png_size_t istop = row_info->rowbytes;
+      size_t i;
+      size_t istop = row_info->rowbytes;
 
       for (i = 0; i < istop; i++)
       {
@@ -311,8 +311,8 @@ png_do_invert(png_row_infop row_info, png_bytep row)
       row_info->bit_depth == 8)
    {
       png_bytep rp = row;
-      png_size_t i;
-      png_size_t istop = row_info->rowbytes;
+      size_t i;
+      size_t istop = row_info->rowbytes;
 
       for (i = 0; i < istop; i += 2)
       {
@@ -326,8 +326,8 @@ png_do_invert(png_row_infop row_info, png_bytep row)
       row_info->bit_depth == 16)
    {
       png_bytep rp = row;
-      png_size_t i;
-      png_size_t istop = row_info->rowbytes;
+      size_t i;
+      size_t istop = row_info->rowbytes;
 
       for (i = 0; i < istop; i += 4)
       {
@@ -542,11 +542,15 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
          if (at_start != 0) /* Skip initial filler */
             ++sp;
          else          /* Skip initial channel and, for sp, the filler */
-            sp += 2, ++dp;
+         {
+            sp += 2; ++dp;
+         }
 
          /* For a 1 pixel wide image there is nothing to do */
          while (sp < ep)
-            *dp++ = *sp, sp += 2;
+         {
+            *dp++ = *sp; sp += 2;
+         }
 
          row_info->pixel_depth = 8;
       }
@@ -556,10 +560,14 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
          if (at_start != 0) /* Skip initial filler */
             sp += 2;
          else          /* Skip initial channel and, for sp, the filler */
-            sp += 4, dp += 2;
+         {
+            sp += 4; dp += 2;
+         }
 
          while (sp < ep)
-            *dp++ = *sp++, *dp++ = *sp, sp += 3;
+         {
+            *dp++ = *sp++; *dp++ = *sp; sp += 3;
+         }
 
          row_info->pixel_depth = 16;
       }
@@ -582,11 +590,15 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
          if (at_start != 0) /* Skip initial filler */
             ++sp;
          else          /* Skip initial channels and, for sp, the filler */
-            sp += 4, dp += 3;
+         {
+            sp += 4; dp += 3;
+         }
 
          /* Note that the loop adds 3 to dp and 4 to sp each time. */
          while (sp < ep)
-            *dp++ = *sp++, *dp++ = *sp++, *dp++ = *sp, sp += 2;
+         {
+            *dp++ = *sp++; *dp++ = *sp++; *dp++ = *sp; sp += 2;
+         }
 
          row_info->pixel_depth = 24;
       }
@@ -596,14 +608,16 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
          if (at_start != 0) /* Skip initial filler */
             sp += 2;
          else          /* Skip initial channels and, for sp, the filler */
-            sp += 8, dp += 6;
+         {
+            sp += 8; dp += 6;
+         }
 
          while (sp < ep)
          {
             /* Copy 6 bytes, skip 2 */
-            *dp++ = *sp++, *dp++ = *sp++;
-            *dp++ = *sp++, *dp++ = *sp++;
-            *dp++ = *sp++, *dp++ = *sp, sp += 3;
+            *dp++ = *sp++; *dp++ = *sp++;
+            *dp++ = *sp++; *dp++ = *sp++;
+            *dp++ = *sp++; *dp++ = *sp; sp += 3;
          }
 
          row_info->pixel_depth = 48;
@@ -623,7 +637,7 @@ png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start)
       return; /* The filler channel has gone already */
 
    /* Fix the rowbytes value. */
-   row_info->rowbytes = (unsigned int)(dp-row);
+   row_info->rowbytes = (size_t)(dp-row);
 }
 #endif
 
@@ -722,7 +736,7 @@ png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info)
        * forms produced on either GCC or MSVC.
        */
       int padding = PNG_PADBITS(row_info->pixel_depth, row_info->width);
-      png_bytep rp = png_ptr->row_buf + row_info->rowbytes;
+      png_bytep rp = png_ptr->row_buf + row_info->rowbytes - 1;
 
       switch (row_info->bit_depth)
       {