-Libpng 1.2.4 - July 8, 2002
+Libpng 1.2.7 - September 12, 2004
-This is a public release of libpng, intended for use in production codes.
+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.
-Changes since the last public release (1.2.3):
+Changes since the last public release (1.2.6):
- Added libpng.pc and libpng-config to "all:" target in 16 makefiles.
- Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH)
- Added missing "\" before closing double quote in makefile.gcmmx.
- Plugged various memory leaks; added png_malloc_warn() and png_set_text_2()
- functions.
- Plugged memory leak of png_ptr->current_text (Matt Holgate).
- Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison)
- Added -soname to the loader flags in makefile.dec, makefile.sgi, and
- makefile.sggcc.
- Added "test-installed" targets to makefile.linux, makefile.gcmmx,
- makefile.sgi, makefile.sggcc, makefile.32sunu, makefile.64sunu,
- makefile.beos, makefile.darwin, makefile.dec, makefile.macosx,
- makefile.solaris, makefile.sco, makefile.cygwin, makefile.hpux,
- makefile.hpgcc, and makefile.so9.
- Plugged memory leak of row_buf in pngtest.c when there is a png_error().
- Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data.
- Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro.
- Changed png_warning() to png_error() when width is too large to process.
+ Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
+ Removed unused pngasmrd.h file.
+ Removed references to uu.net for archived files. Added references to
+ PNG Spec (second edition) and the PNG ISO/IEC Standard.
+ Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR.
+ Fixed bug with "optimized window size" in the IDAT datastream, that
+ causes libpng to write PNG files with incorrect zlib header bytes.
+ Fixed bug with sCAL chunk and big-endian machines (David Munro).
+ Undid new code added in 1.2.6 to update the color_type in
+ png_set_filler().
+ Added png_set_add_alpha() that updates color type.
+ Revised png_set_strip_filler() to not remove alpha if color_type has alpha.
+ Added makefile.hp64
+ Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin
Send comments/corrections/commendations to
-png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
+png-implement@ccrc.wustl.edu (subscription required; write to
+majordomo@ccrc.wustl.edu with "subscribe png-implement" in the message)
+or to glennrp@users.sourceforge.net
Glenn R-P