X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b61cc19c06d9795c73fc6fbe893e92898938c70e..4d623b67ee74794fbeba5805a269433d030c67d5:/src/png/ANNOUNCE diff --git a/src/png/ANNOUNCE b/src/png/ANNOUNCE index f160172fb1..d89d11d315 100644 --- a/src/png/ANNOUNCE +++ b/src/png/ANNOUNCE @@ -1,5 +1,5 @@ -Libpng 1.4.4 - September 23, 2010 +Libpng 1.5.7 - December 15, 2011 This is a public release of libpng, intended for use in production codes. @@ -8,58 +8,91 @@ Files available for download: Source files with LF line endings (for Unix/Linux) and with a "configure" script - libpng-1.4.4.tar.xz (LZMA-compressed, recommended) - libpng-1.4.4.tar.gz - libpng-1.4.4.tar.bz2 + libpng-1.5.7.tar.xz (LZMA-compressed, recommended) + libpng-1.5.7.tar.gz + libpng-1.5.7.tar.bz2 Source files with CRLF line endings (for Windows), without the "configure" script - lpng144.zip - lpng144.7z + lpng157.7z (LZMA-compressed, recommended) + lpng157.zip Other information: - libpng-1.4.4-README.txt - libpng-1.4.4-LICENSE.txt + libpng-1.5.7-README.txt + libpng-1.5.7-LICENSE.txt -Changes since the last public release (1.4.3): - Removed extraneous new_push_process_row.c file. - Revised the "SEE ALSO" style of libpng.3, libpngpf.3, and png.5 - Removed some newly-added TAB characters from pngpread.c. - Fixed some indentation in pngpread.c and pngrutil.c - Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans) - Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {') - Put "#ifndef PNG_EXTERN, #endif" around "#define PNG_EXTERN" in pngpriv.h - Added -DNO_PNG_SNPRINTF to CFLAGS in scripts/makefile.dj2 - Moved the definition of png_snprintf() outside of the enclosing - #ifdef blocks in pngconf.h - Made a special case "#define PNGAPI" in pngconf.h for WATCOM. - Removed reference to cbuilder5/* from Makefile.in and Makefile.am - Updated the read macros and functions from 1.5.0beta38. - Updated projects/visualc71 so it can find scripts/pnglibconf.h - Removed unused png_mem_* defines from pngconf.h. - Correct use of _WINDOWS_ in pngconf.h - Don't try to use version-script with cygwin/mingw. - Revised contrib/gregbook to work under cygwin/mingw. - Updated prebuilt aclocal.m4 and ltmain.sh - Add .dll.a to the list of extensions to be symlinked by Makefile.am (Yaakov) - Updated CMakelists.txt to use CMAKE_INSTALL_LIBDIR variable; useful for - installing libpng in /usr/lib64 (Funda Wang). - Revised CMakeLists.txt to put the man pages in share/man/man* not man/man* - Revised CMakeLists.txt to make symlinks instead of copies when installing. - Moved "#include pngusr.h" ahead of PNG_USER_PRIVATEBUILD test in pngconf.h - Eliminated a deprecated reference to png_ptr->io_ptr in pngtest.c - Eliminated new unnecessary #if tests regarding the sCAL chunk from pngrutil.c - Updated the xcode project to work with libpng-1.4.x and added iOS targets - for simulator and device (Philippe Hausler). - Revised autogen.sh to recognize and use $AUTOCONF, $AUTOMAKE, $AUTOHEADER, - $AUTOPOINT, $ACLOCAL and $LIBTOOLIZE - Rebuilt configure scripts with automake-1.11.1 instead of automake-1.11. - Removed unused mkinstalldirs file. +Changes since the last public release (1.5.6): + Added support for ARM processor (Mans Rullgard) + Fixed bug in pngvalid on early allocation failure; fixed type cast in + pngmem.c; pngvalid would attempt to call png_error() if the allocation + of a png_struct or png_info failed. This would probably have led to a + 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 + token from @-@-@ to PNG_JOIN; that should work with all compiler + preprocessors. + Paeth filter speed improvements from work by Siarhei Siamashka. This + changes the 'Paeth' reconstruction function to improve the GCC code + generation on x86. The changes are only part of the suggested ones; + just the changes that definitely improve speed and remain simple. + The changes also slightly increase the clarity of the code. + Check compression_type parameter in png_get_iCCP and remove spurious + casts. The compression_type parameter is always assigned to, so must + be non-NULL. The cast of the profile length potentially truncated the + value unnecessarily on a 16-bit int system, so the cast of the (byte) + compression type to (int) is specified by ANSI-C anyway. + Fixed FP division by zero in pngvalid.c; the 'test_pixel' code left + the sBIT fields in the test pixel as 0, which resulted in a floating + point division by zero which was irrelevant but causes systems where + FP exceptions cause a crash. Added code to pngvalid to turn on FP + exceptions if the appropriate glibc support is there to ensure this is + tested in the future. + Added versioning to pnglibconf.h comments. + Installed more accurate linear to sRGB conversion tables. The slightly + modified tables reduce the number of 16-bit values that + convert to an off-by-one 8-bit value. The "makesRGB.c" code that was used + to generate the tables is now in a contrib/sRGBtables sub-directory. + Added run-time detection of NEON support. + Multiple transform bug fixes plus a work-round for double gamma correction. + libpng does not support more than one transform that requires linear data + at once - if this is tried typically the results is double gamma + correction. Since the simplified APIs can need rgb to gray combined with + a compose operation it is necessary to do one of these outside the main + libpng transform code. This check-in also contains fixes to various bugs + in compose and rgb to gray (on palette). + 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 + 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. + Added --noexecstack to assembler file compilation. GCC does not set + this on assembler compilation, even though it does on C compilation. + This creates security issues if assembler code is enabled; the + work-around is to set it by default in the flags for $(CCAS) + Removed "zTXt" from warning in generic chunk decompression function. + Validate time settings passed to pngset() and png_convert_to_rfc1123() + (Frank Busse). + Added MINGW support to CMakeLists.txt + Reject invalid compression flag or method when reading the iTXt chunk. + Moved pngvalid.c into contrib/libtests + Rebuilt Makefile.in, configure, etc., with autoconf-2.68 + Replaced an "#if" with "#ifdef" in pngrtran.c + Revised #if PNG_DO_BC block in png.c (use #ifdef and add #else) + Revised pngconf.h to use " __declspec(restrict)" only when MSC_VER >= 1400, + as in libpng-1.5.4. + Put CRLF line endings in the owatcom project files. + Updated CMakeLists.txt to account for the relocation of pngvalid.c + Minor fixes to pngvalid.c for gcc 4.6.2 compatibility to remove warnings + reported by earlier versions. -Send comments/corrections/commendations to glennrp at users.sourceforge.net -or to png-mng-implement at lists.sf.net (subscription required; visit -https://lists.sourceforge.net/lists/listinfo/png-mng-implement). +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