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+Libpng 1.6.22rc01 - May 14, 2016 |
+ |
+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 |
+ |
+ 1.6.22rc01.tar.xz (LZMA-compressed, recommended) |
+ 1.6.22rc01.tar.gz |
+ |
+Source files with CRLF line endings (for Windows), without the |
+"configure" script |
+ |
+ lp1622r01.7z (LZMA-compressed, recommended) |
+ lp1622r01.zip |
+ |
+Other information: |
+ |
+ 1.6.22rc01-README.txt |
+ 1.6.22rc01-LICENSE.txt |
+ libpng-1.6.22rc01-*.asc (armored detached GPG signatures) |
+ |
+Changes since the last public release (1.6.21): |
+ |
+Version 1.6.22beta01 [January 23, 2016] |
+ Changed PNG_USE_MKSTEMP to __COVERITY__ to select alternate |
+ "tmpfile()" implementation in contrib/libtests/pngstest.c |
+ Fixed NO_STDIO build of pngunknown.c to skip calling png_init_io() |
+ if there is no stdio.h support. |
+ Added a png_image_write_to_memory() API and a number of assist macros |
+ to allow an application that uses the simplified API write to bypass |
+ stdio and write directly to memory. |
+ Added some warnings (png.h) and some check code to detect *possible* |
+ overflow in the ROW_STRIDE and simplified image SIZE macros. This |
+ disallows image width/height/format that *might* overflow. This is |
+ a quiet API change that limits in-memory image size (uncompressed) to |
+ less than 4GByte and image row size (stride) to less than 2GByte. |
+ Revised workaround for false-positive Coverity issue in pngvalid.c. |
+ |
+Version 1.6.22beta02 [February 8, 2016] |
+ Only use exit(77) in configure builds. |
+ Corrected error in PNG_IMAGE_PNG_SIZE_MAX. This new macro underreported |
+ the palette size because it failed to take into account that the memory |
+ palette has to be expanded to full RGB when it is written to PNG. |
+ Updated CMakeLists.txt, added supporting scripts/gen*.cmake.in |
+ and test.cmake.in (Roger Leigh). |
+ Relaxed limit checks on gamma values in pngrtran.c. As suggested in |
+ the comments gamma values outside the range currently permitted |
+ by png_set_alpha_mode are useful for HDR data encoding. These values |
+ are already permitted by png_set_gamma so it is reasonable caution to |
+ extend the png_set_alpha_mode range as HDR imaging systems are starting |
+ to emerge. |
+ |
+Version 1.6.22beta03 [March 9, 2016] |
+ Added a common-law trademark notice and export control information |
+ to the LICENSE file, png.h, and the man page. |
+ Restored "& 0xff" in png_save_uint_16() and png_save_uint_32() that |
+ were accidentally removed from libpng-1.6.17. |
+ Changed PNG_INFO_cHNK and PNG_FREE_cHNK from 0xnnnn to 0xnnnnU in png.h |
+ (Robert C. Seacord). |
+ Removed dubious "#if INT_MAX" test from png.h that was added to |
+ libpng-1.6.19beta02 (John Bowler). |
+ Add ${INCLUDES} in scripts/genout.cmake.in (Bug report by Nixon Kwok). |
+ Updated LICENSE to say files in the contrib directory are not |
+ necessarily under the libpng license, and that some makefiles have |
+ other copyright owners. |
+ Added INTEL-SSE2 support (Mike Klein and Matt Sarett, Google, Inc.). |
+ Made contrib/libtests/timepng more robust. The code no longer gives |
+ up/fails on invalid PNG data, it just skips it (with error messages). |
+ The code no longer fails on PNG files with data beyond IEND. Options |
+ exist to use png_read_png (reading the whole image, not by row) and, in |
+ that case, to apply any of the supported transforms. This makes for |
+ more realistic testing; the decoded data actually gets used in a |
+ meaningful fashion (John Bowler). |
+ Fixed some misleading indentation (Krishnaraj Bhat). |
+ |
+Version 1.6.22beta04 [April 5, 2016] |
+ Force GCC compilation to C89 if needed (Dagobert Michelsen). |
+ SSE filter speed improvements for bpp=3: |
+ memcpy-free implementations of load3() / store3(). |
+ call load3() only when needed at the end of a scanline. |
+ |
+Version 1.6.22beta05 [April 27, 2016] |
+ Added PNG_FAST_FILTERS macro (defined as |
+ PNG_FILTER_NONE|PNG_FILTER_SUB|PNG_FILTER_UP). |
+ Various fixes for contrib/libtests/timepng.c |
+ Moved INTEL-SSE code from pngpriv.h into contrib/intel/intel_sse.patch. |
+ Fixed typo (missing underscore) in #define PNG_READ_16_TO_8_SUPPORTED |
+ (Bug report by Y.Ohashik). |
+ |
+Version 1.6.22beta06 [May 5, 2016] |
+ Rebased contrib/intel_sse.patch. |
+ Quieted two Coverity issues in contrib/libtests/timepng.c. |
+ Fixed issues with scripts/genout.cmake.in (David Capello, Nixon Kwok): |
+ Added support to use multiple directories in ZLIBINCDIR variable, |
+ Fixed CMAKE_C_FLAGS with multiple values when genout is compiled on MSVC, |
+ Fixed pnglibconf.c compilation on OS X including the sysroot path. |
+ |
+Version 1.6.22rcp1 [May 14, 2016] |
+ No changes. |
+ |
+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 |