Libpng 1.6.3beta07 - June 4, 2013 This is not intended to be a public release. It will be replaced within a few weeks by a public version or by another test version. Files available for download: Source files with LF line endings (for Unix/Linux) and with a "configure" script 1.6.3beta07.tar.xz (LZMA-compressed, recommended) 1.6.3beta07.tar.gz Source files with CRLF line endings (for Windows), without the "configure" script lp163b07.7z (LZMA-compressed, recommended) lp163b07.zip Other information: 1.6.3beta07-README.txt 1.6.3beta07-LICENSE.txt Changes since the last public release (1.6.2): Version 1.6.3beta01 [April 25, 2013] Revised stack marking in arm/filter_neon.S and configure.ac. Ensure that NEON filter stuff is completely disabled when switched 'off'. Previously the ARM NEON specific files were still built if the option was switched 'off' as opposed to being explicitly disabled. Version 1.6.3beta02 [April 26, 2013] Test for 'arm*' not just 'arm' in the host_cpu configure variable. Rebuilt the configure scripts. Version 1.6.3beta03 [April 30, 2013] Expanded manual paragraph about writing private chunks, particularly the need to call png_set_keep_unknown_chunks() when writing them. Avoid dereferencing NULL pointer possibly returned from png_create_write_struct() (Andrew Church). Version 1.6.3beta05 [May 9, 2013] Calculate our own zlib windowBits when decoding rather than trusting the CMF bytes in the PNG datastream. Added an option to force maximum window size for inflating, which was the behavior of libpng15 and earlier. Added png-fix-itxt and png-fix-too-far-back to the built programs and removed warnings from the source code and timepng that are revealed as a result. Detect wrong libpng versions linked to png-fix-too-far-back, which currently only works with libpng versions that can be made to reliably fail when the deflate data contains an out-of-window reference. This means only 1.6 and later. Fixed gnu issues: g++ needs a static_cast, gcc 4.4.7 has a broken warning message which it is easier to work round than ignore. Updated contrib/pngminus/pnm2png.c (Paul Stewart): Check for EOF Ignore "#" delimited comments in input file to pnm2png.c. Fixed whitespace handling Added a call to png_set_packing() Initialize dimension values so if sscanf fails at least we have known invalid values. Attempt to detect configuration issues with png-fix-too-far-back, which requires both the correct libpng and the correct zlib to function correctly. Check ZLIB_VERNUM for mismatches, enclose #error in quotes Added information in the documentation about problems with and fixes for the bad CRC and bad iTXt chunk situations. Version 1.6.3beta06 [May 12, 2013] Allow contrib/pngminus/pnm2png.c to compile without WRITE_INVERT and WRITE_PACK supported (writes error message that it can't read P1 or Improved png-fix-too-far-back usage message, added --suffix option. Revised contrib/pngminim/*/makefile to generate pnglibconf.h with the right zlib header files. Separated CPPFLAGS and CFLAGS in contrib/pngminim/*/makefile Version 1.6.3beta07 [June 4, 2013] Removed a redundant test in png_set_IHDR(). 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 Glenn R-P