285 lines
12 KiB
Plaintext
285 lines
12 KiB
Plaintext
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Libpng 1.4.0beta24 - July 25, 2008
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This is not intended to be a public release. It will be replaced
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within a few weeks by a public version or by another test version.
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Files available for download:
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Source files with LF line endings (for Unix/Linux) and with a
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"configure" script
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1.4.0beta24.tar.gz
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1.4.0beta24.tar.bz2
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Source files with LF line endings (for Unix/Linux) without the
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"configure" script
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1.4.0beta24-no-config.tar.gz
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1.4.0beta24-no-config.tar.bz2
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Source files with CRLF line endings (for Windows), without the
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"configure" script
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lp140b24.zip
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lp140b24.tar.bz2
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Other information:
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1.4.0beta24-README.txt
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1.4.0beta24-KNOWNBUGS.txt
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1.4.0beta24-LICENSE.txt
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1.4.0beta24-Y2K-compliance.txt
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Changes since the last public release (1.2.10):
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version 1.2.10beta1 [April 15, 2006]
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Renamed "config.h" to "png_conf.h" and revised Makefile.am to add
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-DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h
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to include png_conf.h only when PNG_BUILDING_LIBPNG is defined.
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version 1.2.10beta2 [April 15, 2006]
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Manually updated Makefile.in and configure. Changed png_conf.h.in
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back to config.h.
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version 1.2.10beta3 [April 15, 2006]
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Change png_conf.h back to config.h in pngconf.h.
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version 1.2.10beta4 [April 16, 2006]
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Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*.
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version 1.2.10beta5 [April 16, 2006]
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Added a configure check for compiling assembler code in pnggccrd.c
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version 1.2.10beta6 [April 17, 2006]
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Revised the configure check for pnggccrd.c
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Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@
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Added @LIBPNG_DEFINES@ to arguments when building libpng.sym
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version 1.2.10beta7 [April 18, 2006]
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Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles.
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version 1.2.10rc1 [April 19, 2006]
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Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD
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Fixed "LN_FS" typo in makefile.sco and makefile.solaris.
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version 1.2.10rc2 [April 19, 2006]
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Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE
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in configure.ac
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Made the configure warning about versioned symbols less arrogant.
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version 1.2.10rc3 [April 20, 2006]
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Added a note in libpng.txt that png_set_sig_bytes(8) can be used when
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writing an embedded PNG without the 8-byte signature.
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version 1.4.0beta1 [April 20, 2006]
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Enabled iTXt support (changes png_struct, thus requires so-number change).
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Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED
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Eliminated PNG_1_0_X and PNG_1_2_X macros.
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Removed deprecated functions png_read_init, png_write_init, png_info_init,
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png_permit_empty_plte, png_set_gray_1_2_4_to_8, and removed the
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deprecated macro PNG_MAX_UINT.
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Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h
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Removed many WIN32_WCE #ifdefs (Cosmin).
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Reduced dependency on C-runtime library when on Windows (Simon-Pierre)
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Replaced sprintf() with png_sprintf() (Simon-Pierre)
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version 1.4.0beta2 [April 20, 2006]
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Revised makefiles to avoid making links to libpng.so.*
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Moved some leftover MMX-related defines from pngconf.h to pngintrn.h
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Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def
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Updated scripts/pngw32.def to comment out MMX functions.
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version 1.2.11beta1 [May 31, 2006]
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scripts/libpng.pc.in contained "configure" style version info and would
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not work with makefiles.
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The shared-library makefiles were linking to libpng.so.0 instead of
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libpng.so.3 compatibility as the library.
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version 1.4.0beta3 [May 10, 2006]
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Updated scripts/pngw32.def to comment out MMX functions.
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Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros.
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Revised pngconf.h and added pngconf.h.in so makefiles and configure can
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pass defines to libpng and applications.
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version 1.4.0beta4 [May 11, 2006]
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Revised configure.ac, Makefile.am, and many of the makefiles to write
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their defines in pngconf.h.
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version 1.4.0beta5 [May 15, 2006]
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Added a missing semicolon in Makefile.am and Makefile.in
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Deleted extraneous square brackets from configure.ac
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version 1.2.11beta2 [June 2, 2006]
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Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
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buffer overflow.
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Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb))
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version 1.4.0beta6 [June 2, 2006]
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Changed sonum from 0 to 1.
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Removed unused prototype for png_check_sig() from png.h
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version 1.2.11beta3 [June 5, 2006]
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Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin).
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Removed the accidental leftover Makefile.in~ (Cosmin).
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Avoided potential buffer overflow and optimized buffer in
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png_write_sCAL(), png_write_sCAL_s() (Cosmin).
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Removed the include directories and libraries from CFLAGS and LDFLAGS
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in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin).
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version 1.2.11beta4 [June 6, 2006]
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Allow zero-length IDAT chunks after the entire zlib datastream, but not
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after another intervening chunk type.
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version 1.2.11rc2 [June 14, 2006]
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Added prototypes for PNG_INCH_CONVERSIONS functions to png.h
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Revised INSTALL and autogen.sh
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Fixed typo in several makefiles (-W1 should be -Wl)
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version 1.2.11rc3 [June 15, 2006]
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Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid
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reading out of bounds.
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version 1.4.0beta7 [June 16, 2006]
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Exported png_write_sig (Cosmin).
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Optimized buffer in png_handle_cHRM() (Cosmin).
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Set pHYs = 2835 x 2835 pixels per meter, and added
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sCAL = 0.352778e-3 x 0.352778e-3 meters, in pngtest.png (Cosmin).
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Added png_set_benign_errors(), png_benign_error(), png_chunk_benign_error().
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Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
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version 1.4.0beta8 [June 21, 2006]
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Added demonstration of user chunk support in pngtest.c, to support the
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public sTER chunk and a private vpAg chunk.
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version 1.4.0beta9 [July 3, 2006]
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Removed ordinals from scripts/pngw32.def and removed png_info_int and
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png_set_gray_1_2_4_to_8 entries.
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Inline call of png_get_uint_32() in png_get_uint_31().
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Use png_get_uint_31() to get vpAg width and height in pngtest.c
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Removed WINCE and Netware projects.
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Removed standalone Y2KINFO file.
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version 1.4.0beta10 [July 12, 2006]
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Added "all: pngconf.h.in pngconf.h" target to Makefile.am
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version 1.4.0beta11 [August 19, 2006]
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Removed AC_FUNC_MALLOC from configure.ac.
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Added a warning when writing iCCP profile with mismatched profile length.
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Patched pnggccrd.c to assemble on x86_64 platforms.
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Moved chunk header reading into a separate function png_read_chunk_header()
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in pngrutil.c. The chunk header (len+sig) is now serialized in a single
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operation (Cosmin).
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Implemented support for I/O states. Added png_ptr member io_state, and
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functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
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(Cosmin).
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Added png_get_io_chunk_name and png_get_io_state to scripts/*.def (Cosmin).
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Renamed scripts/pngw32.* to scripts/pngwin.* (Cosmin).
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Removed the include directories and libraries from CFLAGS and LDFLAGS
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in scripts/makefile.gcc (Cosmin).
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Used png_save_uint_32() to set vpAg width and height in pngtest.c (Cosmin).
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Cast to proper type when getting/setting vpAg units in pngtest.c (Cosmin).
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Added pngintrn.h to the Visual C++ projects (Cosmin).
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Removed scripts/list (Cosmin).
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Updated copyright year in scripts/pngwin.def (Cosmin).
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Removed PNG_TYPECAST_NULL and used standard NULL consistently (Cosmin).
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Disallowed the user to redefine png_size_t, and enforced a consistent use
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of png_size_t across libpng (Cosmin).
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Changed the type of png_ptr->rowbytes, PNG_ROWBYTES() and friends
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to png_size_t (Cosmin).
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Removed png_convert_size() and replaced png_sizeof with sizeof (Cosmin).
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Removed some unnecessary type casts (Cosmin).
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Changed prototype of png_get_compression_buffer_size() and
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png_set_compression_buffer_size() to work with png_size_t instead of
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png_uint_32 (Cosmin).
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Removed png_memcpy_check() and png_memset_check() (Cosmin).
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Fixed a typo (png_byte --> png_bytep) in libpng.3 and libpng.txt (Cosmin).
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Clarified that png_zalloc() does not clear the allocated memory,
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and png_zalloc() and png_zfree() cannot be PNGAPI (Cosmin).
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Renamed png_mem_size_t to png_alloc_size_t, fixed its definition in
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pngconf.h, and used it in all memory allocation functions (Cosmin).
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Renamed pngintrn.h to pngpriv.h, added a comment at the top of the file
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mentioning that the symbols declared in that file are private, and
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updated the scripts and the Visual C++ projects accordingly (Cosmin).
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Removed circular references between pngconf.h and pngconf.h.in in
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scripts/makefile.vc*win32 (Cosmin).
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Removing trailing '.' from the warning and error messages (Cosmin).
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Added pngdefs.h that is built by makefile or configure, instead of
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pngconf.h.in (Glenn).
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Detect and fix attempt to write wrong iCCP profile length.
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version 1.4.0beta12 [October 19, 2006]
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Changed "logical" to "bitwise" in the documentation.
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Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
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Add a typecast to stifle compiler warning in pngrutil.c
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version 1.4.0beta13 [November 10, 2006]
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Fix potential buffer overflow in sPLT chunk handler.
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Fix Makefile.am to not try to link to noexistent files.
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version 1.4.0beta14 [November 15, 2006]
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Check all exported functions for NULL png_ptr.
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version 1.4.0beta15 [November 17, 2006]
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Relocated two misplaced tests for NULL png_ptr.
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Built Makefile.in with automake-1.9.6 instead of 1.9.2.
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Build configure with autoconf-2.60 instead of 2.59.
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Add "install: all" in Makefile.am so "configure; make install" will work.
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version 1.4.0beta16 [November 17, 2006]
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Added a typecast in png_zalloc().
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version 1.4.0beta17 [December 4, 2006]
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Changed "new_key[79] = '\0';" to "(*new_key)[79] = '\0';" in pngwutil.c
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version 1.4.0beta18 [December 7, 2006]
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Added scripts/CMakeLists.txt
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version 1.4.0beta19 [May 16, 2007]
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Revised scripts/CMakeLists.txt
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Rebuilt configure and Makefile.in with newer tools.
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Added "png_ptr->num_trans=0" before error return in png_handle_tRNS,
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to eliminate a vulnerability (CVE-2007-2554, CERT VU#684664)
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version 1.4.0beta20 [July 9, 2008]
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Moved several PNG_HAVE_* macros from pngpriv.h to png.h because applications
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calling set_unknown_chunk_location() need them.
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Moved several macro definitions from pngpriv.h to pngconf.h
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Added png_ptr->unknown_chunk to hold working unknown chunk data, so it
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can be free'ed in case of error. Revised unknown chunk handling in
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pngrutil.c and pngpread.c to use this structure.
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Merge with changes to the 1.2.X branch, as of 1.2.19beta10.
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Revised makefile.mingw
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Prefer PNG_USE_PNGVCRD when _MSC_VER is defined in pngconf.h
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version 1.4.0beta21 [July 21, 2008]
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Moved local array "chunkdata" from pngrutil.c to the png_struct, so
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it will be freed by png_read_destroy() in case of a read error (Kurt
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Christensen).
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version 1.4.0beta22 [July 21, 2008]
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Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking.
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version 1.4.0beta23 [July 22, 2008]
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Change "chunkdata = NULL" to "png_ptr->chunkdata = NULL" several places in
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png_decompress_chunk().
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version 1.4.0beta24 [July 25, 2008]
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Change all remaining "chunkdata" to "png_ptr->chunkdata" in
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png_decompress_chunk(), and remove "chunkdata" from parameter list.
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Put a call to png_check_chunk_name() in png_read_chunk_header().
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Revised png_check_chunk_name() to reject a name with a lowercase 3rd byte.
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Removed two calls to png_check_chunk_name() occuring later in the process.
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Define PNG_NO_ERROR_NUMBERS by default in pngconf.h
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version 1.4.0betaN [future]
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Build shared libraries with -lz and sometimes -lm.
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Revised pngvcrd.c for improved efficiency.
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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(subscription required; visit
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https://lists.sourceforge.net/lists/listinfo/png-mng-implement
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to subscribe) or to glennrp at users.sourceforge.net
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Glenn R-P
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