4418N/A/*
4418N/A * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
4418N/A#if 0
4418N/Alibpng_changes(){ /*
0N/ACHANGES - changes for libpng
0N/A
4418N/AVersion 0.2
0N/A added reader into png.h
0N/A fixed small problems in stub file
0N/A
4418N/AVersion 0.3
0N/A added pull reader
0N/A split up pngwrite.c to several files
0N/A added pnglib.txt
0N/A added example.c
0N/A cleaned up writer, adding a few new transformations
0N/A fixed some bugs in writer
0N/A interfaced with zlib 0.5
0N/A added K&R support
4418N/A added check for 64 KB blocks for 16-bit machines
4418N/A
4418N/AVersion 0.4
0N/A cleaned up code and commented code
0N/A simplified time handling into png_time
0N/A created png_color_16 and png_color_8 to handle color needs
0N/A cleaned up color type defines
0N/A fixed various bugs
0N/A made various names more consistent
0N/A interfaced with zlib 0.71
0N/A cleaned up zTXt reader and writer (using zlib's Reset functions)
0N/A split transformations into pngrtran.c and pngwtran.c
0N/A
4418N/AVersion 0.5
0N/A interfaced with zlib 0.8
0N/A fixed many reading and writing bugs
0N/A saved using 3 spaces instead of tabs
0N/A
4418N/AVersion 0.6
0N/A added png_large_malloc() and png_large_free()
0N/A added png_size_t
0N/A cleaned up some compiler warnings
0N/A added png_start_read_image()
0N/A
4418N/AVersion 0.7
0N/A cleaned up lots of bugs
0N/A finished dithering and other stuff
0N/A added test program
0N/A changed name from pnglib to libpng
0N/A
4418N/AVersion 0.71 [June, 1995]
0N/A changed pngtest.png for zlib 0.93
0N/A fixed error in libpng.txt and example.c
0N/A
4418N/AVersion 0.8
0N/A cleaned up some bugs
0N/A added png_set_filler()
0N/A split up pngstub.c into pngmem.c, pngio.c, and pngerror.c
0N/A added #define's to remove unwanted code
0N/A moved png_info_init() to png.c
0N/A added old_size into png_realloc()
0N/A added functions to manually set filtering and compression info
0N/A changed compression parameters based on image type
0N/A optimized filter selection code
0N/A added version info
0N/A changed external functions passing floats to doubles (k&r problems?)
0N/A put all the configurable stuff in pngconf.h
0N/A enabled png_set_shift to work with paletted images on read
4418N/A added png_read_update_info() - updates info structure with transformations
4418N/A
4418N/AVersion 0.81 [August, 1995]
0N/A incorporated Tim Wegner's medium model code (thanks, Tim)
0N/A
4418N/AVersion 0.82 [September, 1995]
0N/A [unspecified changes]
0N/A
4418N/AVersion 0.85 [December, 1995]
0N/A added more medium model code (almost everything's a far)
0N/A added i/o, error, and memory callback functions
4418N/A fixed some bugs (16-bit, 4-bit interlaced, etc.)
0N/A added first run progressive reader (barely tested)
0N/A
4418N/AVersion 0.86 [January, 1996]
0N/A fixed bugs
0N/A improved documentation
0N/A
4418N/AVersion 0.87 [January, 1996]
0N/A fixed medium model bugs
0N/A fixed other bugs introduced in 0.85 and 0.86
0N/A added some minor documentation
0N/A
4418N/AVersion 0.88 [January, 1996]
0N/A fixed progressive bugs
0N/A replaced tabs with spaces
0N/A cleaned up documentation
0N/A added callbacks for read/write and warning/error functions
0N/A
4418N/AVersion 0.89 [July, 1996]
4418N/A Added new initialization API to make libpng work better with shared libs
4418N/A we now have png_create_read_struct(), png_create_write_struct(),
4418N/A png_create_info_struct(), png_destroy_read_struct(), and
4418N/A png_destroy_write_struct() instead of the separate calls to
4418N/A malloc and png_read_init(), png_info_init(), and png_write_init()
4418N/A Changed warning/error callback functions to fix bug - this means you
4418N/A should use the new initialization API if you were using the old
4418N/A png_set_message_fn() calls, and that the old API no longer exists
4418N/A so that people are aware that they need to change their code
4418N/A Changed filter selection API to allow selection of multiple filters
4418N/A since it didn't work in previous versions of libpng anyways
4418N/A Optimized filter selection code
4418N/A Fixed png_set_background() to allow using an arbitrary RGB color for
4418N/A paletted images
4418N/A Fixed gamma and background correction for paletted images, so
4418N/A png_correct_palette is not needed unless you are correcting an
4418N/A external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED
4418N/A in pngconf.h) - if nobody uses this, it may disappear in the future.
4418N/A Fixed bug with Borland 64K memory allocation (Alexander Lehmann)
4418N/A Fixed bug in interlace handling (Smarasderagd, I think)
4418N/A Added more error checking for writing and image to reduce invalid files
4418N/A Separated read and write functions so that they won't both be linked
4418N/A into a binary when only reading or writing functionality is used
4418N/A New pngtest image also has interlacing and zTXt
4418N/A Updated documentation to reflect new API
4418N/A
4418N/AVersion 0.90 [January, 1997]
4418N/A Made CRC errors/warnings on critical and ancillary chunks configurable
0N/A libpng will use the zlib CRC routines by (compile-time) default
4418N/A Changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner)
4418N/A Added external C++ wrapper statements to png.h (Gilles Dauphin)
4418N/A Allow PNG file to be read when some or all of file signature has already
4418N/A been read from the beginning of the stream. ****This affects the size
4418N/A of info_struct and invalidates all programs that use a shared libpng****
4418N/A Fixed png_filler() declarations
4418N/A Fixed? background color conversions
4418N/A Fixed order of error function pointers to match documentation
4418N/A Current chunk name is now available in png_struct to reduce the number
4418N/A of nearly identical error messages (will simplify multi-lingual
4418N/A support when available)
4418N/A Try to get ready for unknown-chunk callback functions:
4418N/A - previously read critical chunks are flagged, so the chunk handling
4418N/A routines can determine if the chunk is in the right place
4418N/A - all chunk handling routines have the same prototypes, so we will
4418N/A be able to handle all chunks via a callback mechanism
4418N/A Try to fix Linux "setjmp" buffer size problems
4418N/A Removed png_large_malloc, png_large_free, and png_realloc functions.
4418N/A
4418N/AVersion 0.95 [March, 1997]
4418N/A Fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never
4418N/A Fixed bug in PNG file signature compares when start != 0
4418N/A Changed parameter type of png_set_filler(...filler...) from png_byte
4418N/A to png_uint_32
4418N/A Added test for MACOS to ensure that both math.h and fp.h are not #included
4418N/A Added macros for libpng to be compiled as a Windows DLL (Andreas Kupries)
4418N/A Added "packswap" transformation, which changes the endianness of
4418N/A packed-pixel bytes (Kevin Bracey)
4418N/A Added "strip_alpha" transformation, which removes the alpha channel of
4418N/A input images without using it (not necessarily a good idea)
4418N/A Added "swap_alpha" transformation, which puts the alpha channel in front
4418N/A of the color bytes instead of after
4418N/A Removed all implicit variable tests which assume NULL == 0 (I think)
4418N/A Changed several variables to "png_size_t" to show 16/32-bit limitations
4418N/A Added new pCAL chunk read/write support
4418N/A Added experimental filter selection weighting (Greg Roelofs)
4418N/A Removed old png_set_rgbx() and png_set_xrgb() functions that have been
0N/A obsolete for about 2 years now (use png_set_filler() instead)
4418N/A Added macros to read 16- and 32-bit ints directly from buffer, to be
4418N/A used only on those systems that support it (namely PowerPC and 680x0)
4418N/A With some testing, this may become the default for MACOS/PPC systems.
4418N/A Only calculate CRC on data if we are going to use it
4418N/A Added macros for zTXt compression type PNG_zTXt_COMPRESSION_???
4418N/A Added macros for simple libpng debugging output selectable at compile time
4418N/A Removed PNG_READ_END_MODE in progressive reader (Smarasderagd)
4418N/A More description of info_struct in libpng.txt and png.h
4418N/A More instructions in example.c
4418N/A More chunk types tested in pngtest.c
4418N/A Renamed pngrcb.c to pngset.c, and all png_read_<chunk> functions to be
4418N/A png_set_<chunk>. We now have corresponding png_get_<chunk>
4418N/A functions in pngget.c to get information in info_ptr. This isolates
4418N/A the application from the internal organization of png_info_struct
4418N/A (good for shared library implementations).
4418N/A
4418N/AVersion 0.96 [May, 1997]
4418N/A Fixed serious bug with < 8bpp images introduced in 0.95
4418N/A Fixed 256-color transparency bug (Greg Roelofs)
4418N/A Fixed up documentation (Greg Roelofs, Laszlo Nyul)
4418N/A Fixed "error" in pngconf.h for Linux setjmp() behaviour
4418N/A Fixed DOS medium model support (Tim Wegner)
4418N/A Fixed png_check_keyword() for case with error in static string text
4418N/A Added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul)
4418N/A Added typecasts to quiet compiler errors
4418N/A Added more debugging info
4418N/A
4418N/AVersion 0.97 [January, 1998]
4418N/A Removed PNG_USE_OWN_CRC capability
4418N/A Relocated png_set_crc_action from pngrutil.c to pngrtran.c
4418N/A Fixed typecasts of "new_key", etc. (Andreas Dilger)
4418N/A Added RFC 1152 [sic] date support
4418N/A Fixed bug in gamma handling of 4-bit grayscale
4418N/A Added 2-bit grayscale gamma handling (Glenn R-P)
4418N/A Added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P)
4418N/A Minor corrections in libpng.txt
4418N/A Added simple sRGB support (Glenn R-P)
4418N/A Easier conditional compiling, e.g. define PNG_READ/WRITE_NOT_FULLY_SUPPORTED;
4418N/A all configurable options can be selected from command-line instead
4418N/A of having to edit pngconf.h (Glenn R-P)
4418N/A Fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P)
4418N/A Added more conditions for png_do_background, to avoid changing
4418N/A black pixels to background when a background is supplied and
4418N/A no pixels are transparent
4418N/A Repaired PNG_NO_STDIO behaviour
4418N/A Tested NODIV support and made it default behaviour (Greg Roelofs)
4418N/A Added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler)
4418N/A Regularized version numbering scheme and bumped shared-library major
0N/A version number to 2 to avoid problems with libpng 0.89 apps (Greg Roelofs)
0N/A
4418N/AVersion 0.98 [January, 1998]
4418N/A Cleaned up some typos in libpng.txt and in code documentation
4418N/A Fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler)
4418N/A Cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c
4418N/A Changed recommendation about file_gamma for PC images to .51 from .45,
4418N/A in example.c and libpng.txt, added comments to distinguish between
4418N/A screen_gamma, viewing_gamma, and display_gamma.
4418N/A Changed all references to RFC1152 to read RFC1123 and changed the
4418N/A PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED
4418N/A Added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent)
4418N/A Changed srgb_intent from png_byte to int to avoid compiler bugs
4418N/A
4418N/AVersion 0.99 [January 30, 1998]
4418N/A Free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler)
4418N/A Fixed a longstanding "packswap" bug in pngtrans.c
4418N/A Fixed some inconsistencies in pngconf.h that prevented compiling with
4418N/A PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined
4418N/A Fixed some typos and made other minor rearrangement of libpng.txt (Andreas)
4418N/A Changed recommendation about file_gamma for PC images to .50 from .51 in
4418N/A example.c and libpng.txt, and changed file_gamma for sRGB images to .45
4418N/A Added a number of functions to access information from the png structure
4418N/A png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit)
4418N/A Added TARGET_MACOS similar to zlib-1.0.8
4418N/A Define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined
4418N/A Added type casting to all png_malloc() function calls
4418N/A
4418N/AVersion 0.99a [January 31, 1998]
0N/A Added type casts and parentheses to all returns that return a value.(Tim W.)
4418N/A
4418N/AVersion 0.99b [February 4, 1998]
0N/A Added type cast png_uint_32 on malloc function calls where needed.
0N/A Changed type of num_hist from png_uint_32 to int (same as num_palette).
0N/A Added checks for rowbytes overflow, in case png_size_t is less than 32 bits.
0N/A Renamed makefile.elf to makefile.lnx.
4418N/A
4418N/AVersion 0.99c [February 7, 1998]
0N/A More type casting. Removed erroneous overflow test in pngmem.c.
0N/A Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes.
0N/A Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5.
4418N/A
4418N/AVersion 0.99d [February 11, 1998]
0N/A Renamed "far_to_near()" "png_far_to_near()"
0N/A Revised libpng.3
0N/A Version 99c "buffered" operations didn't work as intended. Replaced them
0N/A with png_memcpy_check() and png_memset_check().
0N/A Added many "if (png_ptr == NULL) return" to quell compiler warnings about
0N/A unused png_ptr, mostly in pngget.c and pngset.c.
0N/A Check for overlength tRNS chunk present when indexed-color PLTE is read.
0N/A Cleaned up spelling errors in libpng.3/libpng.txt
0N/A Corrected a problem with png_get_tRNS() which returned undefined trans array
4418N/A
4418N/AVersion 0.99e [February 28, 1998]
0N/A Corrected png_get_tRNS() again.
0N/A Add parentheses for easier reading of pngget.c, fixed "||" should be "&&".
0N/A Touched up example.c to make more of it compileable, although the entire
0N/A file still can't be compiled (Willem van Schaik)
0N/A Fixed a bug in png_do_shift() (Bryan Tsai)
0N/A Added a space in png.h prototype for png_write_chunk_start()
0N/A Replaced pngtest.png with one created with zlib 1.1.1
0N/A Changed pngtest to report PASS even when file size is different (Jean-loup G.)
0N/A Corrected some logic errors in png_do_invert_alpha() (Chris Patterson)
4418N/A
4418N/AVersion 0.99f [March 5, 1998]
0N/A Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey)
0N/A Moved makefiles into a "scripts" directory, and added INSTALL instruction file
0N/A Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok)
0N/A Added pointers to "note on libpng versions" in makefile.lnx and README
0N/A Added row callback feature when reading and writing nonprogressive rows
4418N/A and added a test of this feature in pngtest.c
0N/A Added user transform callbacks, with test of the feature in pngtest.c
4418N/A
4418N/AVersion 0.99g [March 6, 1998, morning]
0N/A Minor changes to pngtest.c to suppress compiler warnings.
0N/A Removed "beta" language from documentation.
4418N/A
4418N/AVersion 0.99h [March 6, 1998, evening]
0N/A Minor changes to previous minor changes to pngtest.c
0N/A Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED
4418N/A and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro
0N/A Added user transform capability
0N/A
4418N/AVersion 1.00 [March 7, 1998]
0N/A Changed several typedefs in pngrutil.c
0N/A Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik)
4418N/A Replaced "while(1)" with "for(;;)"
4418N/A Added PNGARG() to prototypes in pngtest.c and removed some prototypes
4418N/A Updated some of the makefiles (Tom Lane)
4418N/A Changed some typedefs (s_start, etc.) in pngrutil.c
4418N/A Fixed dimensions of "short_months" array in pngwrite.c
0N/A Replaced ansi2knr.c with the one from jpeg-v6
0N/A
4418N/AVersion 1.0.0 [March 8, 1998]
0N/A Changed name from 1.00 to 1.0.0 (Adam Costello)
0N/A Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert)
4418N/A
4418N/AVersion 1.0.0a [March 9, 1998]
0N/A Fixed three bugs in pngrtran.c to make gamma+background handling consistent
4418N/A (Greg Roelofs)
0N/A Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz
4418N/A for major, minor, and bugfix releases. This is 10001. (Adam Costello,
4418N/A Tom Lane)
0N/A Make months range from 1-12 in png_convert_to_rfc1123
4418N/A
4418N/AVersion 1.0.0b [March 13, 1998]
0N/A Quieted compiler complaints about two empty "for" loops in pngrutil.c
0N/A Minor changes to makefile.s2x
0N/A Removed #ifdef/#endif around a png_free() in pngread.c
0N/A
4418N/AVersion 1.0.1 [March 14, 1998]
0N/A Changed makefile.s2x to reduce security risk of using a relative pathname
0N/A Fixed some typos in the documentation (Greg).
0N/A Fixed a problem with value of "channels" returned by png_read_update_info()
4418N/A
4418N/AVersion 1.0.1a [April 21, 1998]
0N/A Optimized Paeth calculations by replacing abs() function calls with intrinsics
0N/A plus other loop optimizations. Improves avg decoding speed by about 20%.
0N/A Commented out i386istic "align" compiler flags in makefile.lnx.
0N/A Reduced the default warning level in some makefiles, to make them consistent.
0N/A Removed references to IJG and JPEG in the ansi2knr.c copyright statement.
0N/A Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation.
0N/A Added grayscale and 16-bit capability to png_do_read_filler().
0N/A Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes
0N/A too large when writing an image with bit_depth < 8 (Bob Dellaca).
0N/A Corrected some bugs in the experimental weighted filtering heuristics.
0N/A Moved a misplaced pngrutil code block that truncates tRNS if it has more
0N/A than num_palette entries -- test was done before num_palette was defined.
0N/A Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins).
4418N/A Changed compiler flags in makefile.wat for better optimization
4418N/A (Pawel Mrochen).
4418N/A
4418N/AVersion 1.0.1b [May 2, 1998]
0N/A Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg).
0N/A Relocated the png_composite macros from pngrtran.c to png.h (Greg).
0N/A Added makefile.sco (contributed by Mike Hopkirk).
0N/A Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a.
0N/A Fixed a bug in pngrtran.c that would set channels=5 under some circumstances.
4418N/A More work on the Paeth-filtering, achieving imperceptible speedup
4418N/A (A Kleinert).
4418N/A More work on loop optimization which may help when compiled with C++
4418N/A compilers.
0N/A Added warnings when people try to use transforms they've defined out.
0N/A Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran.
0N/A Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg)
4418N/A
4418N/AVersion 1.0.1c [May 11, 1998]
0N/A Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for
0N/A filler bytes should have been 0xff instead of 0xf.
0N/A Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images.
0N/A Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED
0N/A out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h
0N/A Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED,
0N/A for consistency, in pngconf.h
0N/A Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier
0N/A to remove unwanted capabilities via the compile line
0N/A Made some corrections to grammar (which, it's) in documentation (Greg).
0N/A Corrected example.c, use of row_pointers in png_write_image().
4418N/A
4418N/AVersion 1.0.1d [May 24, 1998]
0N/A Corrected several statements that used side effects illegally in pngrutil.c
0N/A and pngtrans.c, that were introduced in version 1.0.1b
0N/A Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert)
0N/A More corrections to example.c, use of row_pointers in png_write_image()
0N/A and png_read_rows().
0N/A Added pngdll.mak and pngdef.pas to scripts directory, contributed by
0N/A Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5
0N/A Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.)
0N/A Changed several loops from count-down to count-up, for consistency.
4418N/A
4418N/AVersion 1.0.1e [June 6, 1998]
0N/A Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and
0N/A added warnings when people try to set png_read_fn and png_write_fn in
0N/A the same structure.
0N/A Added a test such that png_do_gamma will be done when num_trans==0
0N/A for truecolor images that have defined a background. This corrects an
0N/A error that was introduced in libpng-0.90 that can cause gamma processing
0N/A to be skipped.
0N/A Added tests in png.h to include "trans" and "trans_values" in structures
0N/A when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined.
0N/A Add png_free(png_ptr->time_buffer) in png_destroy_read_struct()
0N/A Moved png_convert_to_rfc_1123() from pngwrite.c to png.c
0N/A Added capability for user-provided malloc_fn() and free_fn() functions,
0N/A and revised pngtest.c to demonstrate their use, replacing the
0N/A PNGTEST_DEBUG_MEM feature.
0N/A Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner).
0N/A
4418N/AVersion 1.0.2 [June 14, 1998]
0N/A Fixed two bugs in makefile.bor .
4418N/A
4418N/AVersion 1.0.2a [December 30, 1998]
0N/A Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
0N/A Fixed a bug in png_do_filler() that made it fail to write filler bytes in
0N/A the left-most pixel of each row (Kevin Bracey).
0N/A Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
0N/A in pngtest.c (Duncan Simpson).
0N/A Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
0N/A even when no tIME chunk was present in the source file.
0N/A Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
0N/A Fixed a problem in png_read_push_finish_row(), which would not skip some
0N/A passes that it should skip, for images that are less than 3 pixels high.
0N/A Interchanged the order of calls to png_do_swap() and png_do_shift()
0N/A in pngwtran.c (John Cromer).
0N/A Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h .
0N/A Changed "bad adaptive filter type" from error to warning in pngrutil.c .
0N/A Fixed a documentation error about default filtering with 8-bit indexed-color.
0N/A Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO
0N/A (L. Peter Deutsch).
0N/A Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
0N/A Added png_get_copyright() and png_get_header_version() functions.
0N/A Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c
0N/A Added information about debugging in libpng.txt and libpng.3 .
4418N/A Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and
4418N/A makefile.sco.
0N/A Removed lines after Dynamic Dependencies" in makefile.aco .
0N/A Revised makefile.dec to make a shared library (Jeremie Petit).
0N/A Removed trailing blanks from all files.
4418N/A
4418N/AVersion 1.0.2a [January 6, 1999]
0N/A Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
0N/A Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
0N/A Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
0N/A Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
0N/A which is obsolete.
0N/A
4418N/AVersion 1.0.3 [January 14, 1999]
0N/A Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
0N/A Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO.
4418N/A
4418N/AVersion 1.0.3a [August 12, 1999]
0N/A Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning
0N/A if an attempt is made to read an interlaced image when it's not supported.
0N/A Added check if png_ptr->trans is defined before freeing it in pngread.c
0N/A Modified the Y2K statement to include versions back to version 0.71
0N/A Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c
0N/A Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments)
0N/A Replaced leading blanks with tab characters in makefile.hux
0N/A Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents.
0N/A Changed (float)red and (float)green to (double)red, (double)green
0N/A in png_set_rgb_to_gray() to avoid "promotion" problems in AIX.
0N/A Fixed a bug in pngconf.h that omitted <stdio.h> when PNG_DEBUG==0 (K Bracey).
0N/A Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt).
0N/A Updated documentation to refer to the PNG-1.2 specification.
0N/A Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c
0N/A in makefile.knr, INSTALL, and README (L. Peter Deutsch)
0N/A Fixed bugs in calculation of the length of rowbytes when adding alpha
0N/A channels to 16-bit images, in pngrtran.c (Chris Nokleberg)
0N/A Added function png_set_user_transform_info() to store user_transform_ptr,
0N/A user_depth, and user_channels into the png_struct, and a function
0N/A png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg)
0N/A Added function png_set_empty_plte_permitted() to make libpng useable
0N/A in MNG applications.
0N/A Corrected the typedef for png_free_ptr in png.h (Jesse Jones).
0N/A Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be
0N/A consistent with PNG-1.2, and allow variance of 500 before complaining.
0N/A Added assembler code contributed by Intel in file pngvcrd.c and modified
4418N/A makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation,
4418N/A Gilles Vollant)
0N/A Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy.
0N/A Added some aliases for png_set_expand() in pngrtran.c, namely
0N/A png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS()
0N/A (Greg Roelofs, in "PNG: The Definitive Guide").
0N/A Added makefile.beo for BEOS on X86, contributed by Sander Stok.
4418N/A
4418N/AVersion 1.0.3b [August 26, 1999]
0N/A Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h
0N/A Changed leading blanks to tabs in all makefiles.
0N/A Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code.
0N/A Made alternate versions of png_set_expand() in pngrtran.c, namely
0N/A png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha
0N/A (Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases.
0N/A Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h
0N/A Revised calculation of num_blocks in pngmem.c to avoid a potentially
0N/A negative shift distance, whose results are undefined in the C language.
0N/A Added a check in pngset.c to prevent writing multiple tIME chunks.
0N/A Added a check in pngwrite.c to detect invalid small window_bits sizes.
4418N/A
4418N/AVersion 1.0.3d [September 4, 1999]
0N/A Fixed type casting of igamma in pngrutil.c
0N/A Added new png_expand functions to scripts/pngdef.pas and pngos2.def
0N/A Added a demo read_user_transform_fn that examines the row filters in pngtest.c
0N/A
4418N/AVersion 1.0.4 [September 24, 1999]
0N/A Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined
0N/A Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h
0N/A Made several minor corrections to pngtest.c
0N/A Renamed the makefiles with longer but more user friendly extensions.
0N/A Copied the PNG copyright and license to a separate LICENSE file.
0N/A Revised documentation, png.h, and example.c to remove reference to
0N/A "viewing_gamma" which no longer appears in the PNG specification.
0N/A Revised pngvcrd.c to use MMX code for interlacing only on the final pass.
0N/A Updated pngvcrd.c to use the faster C filter algorithms from libpng-1.0.1a
0N/A Split makefile.win32vc into two versions, makefile.vcawin32 (uses MMX
0N/A assembler code) and makefile.vcwin32 (doesn't).
0N/A Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING)
0N/A Added a copy of pngnow.png to the distribution.
4418N/A
4418N/AVersion 1.0.4a [September 25, 1999]
0N/A Increase max_pixel_depth in pngrutil.c if a user transform needs it.
0N/A Changed several division operations to right-shifts in pngvcrd.c
4418N/A
4418N/AVersion 1.0.4b [September 30, 1999]
0N/A Added parentheses in line 3732 of pngvcrd.c
0N/A Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1
4418N/A
4418N/AVersion 1.0.4c [October 1, 1999]
0N/A Added a "png_check_version" function in png.c and pngtest.c that will generate
0N/A a helpful compiler error if an old png.h is found in the search path.
0N/A Changed type of png_user_transform_depth|channels from int to png_byte.
4418N/A
4418N/AVersion 1.0.4d [October 6, 1999]
0N/A Changed 0.45 to 0.45455 in png_set_sRGB()
0N/A Removed unused PLTE entries from pngnow.png
0N/A Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly.
4418N/A
4418N/AVersion 1.0.4e [October 10, 1999]
0N/A Fixed sign error in pngvcrd.c (Greg Roelofs)
0N/A Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P)
4418N/A
4418N/AVersion 1.0.4f [October 15, 1999]
0N/A Surrounded example.c code with #if 0 .. #endif to prevent people from
0N/A inadvertently trying to compile it.
0N/A Changed png_get_header_version() from a function to a macro in png.h
0N/A Added type casting mostly in pngrtran.c and pngwtran.c
0N/A Removed some pointless "ptr = NULL" in pngmem.c
0N/A Added a "contrib" directory containing the source code from Greg's book.
0N/A
4418N/AVersion 1.0.5 [October 15, 1999]
0N/A Minor editing of the INSTALL and README files.
4418N/A
4418N/AVersion 1.0.5a [October 23, 1999]
0N/A Added contrib/pngsuite and contrib/pngminus (Willem van Schaik)
0N/A Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans)
0N/A Further optimization and bugfix of pngvcrd.c
0N/A Revised pngset.c so that it does not allocate or free memory in the user's
0N/A text_ptr structure. Instead, it makes its own copy.
0N/A Created separate write_end_info_struct in pngtest.c for a more severe test.
0N/A Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak.
4418N/A
4418N/AVersion 1.0.5b [November 23, 1999]
0N/A Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and
0N/A PNG_FLAG_WROTE_tIME from flags to mode.
0N/A Added png_write_info_before_PLTE() function.
0N/A Fixed some typecasting in contrib/gregbook/*.c
0N/A Updated scripts/makevms.com and added makevms.com to contrib/gregbook
0N/A and contrib/pngminus (Martin Zinser)
4418N/A
4418N/AVersion 1.0.5c [November 26, 1999]
0N/A Moved png_get_header_version from png.h to png.c, to accommodate ansi2knr.
0N/A Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to
0N/A accommodate making DLL's: Moved usr_png_ver from global variable to function
0N/A png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and
0N/A eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays
0N/A into pngtypes.h. Eliminated use of global png_pass arrays. Declared the
0N/A png_CHNK and png_pass arrays to be "const". Made the global arrays
0N/A available to applications (although none are used in libpng itself) when
0N/A PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined.
0N/A Removed some extraneous "-I" from contrib/pngminus/makefile.std
0N/A Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2.
0N/A Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3
4418N/A
4418N/AVersion 1.0.5d [November 29, 1999]
0N/A Add type cast (png_const_charp) two places in png.c
0N/A Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays.
0N/A Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available
0N/A to applications a macro "PNG_USE_LOCAL_ARRAYS".
4418N/A comment out (with #ifdef) all the new declarations when
4418N/A PNG_USE_GLOBAL_ARRAYS is defined.
0N/A Added PNG_EXPORT_VAR macro to accommodate making DLL's.
4418N/A
4418N/AVersion 1.0.5e [November 30, 1999]
0N/A Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text
0N/A structure; refactored the inflate/deflate support to make adding new chunks
0N/A with trailing compressed parts easier in the future, and added new functions
0N/A png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP,
0N/A png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond).
0N/A NOTE: Applications that write text chunks MUST define png_text->lang
0N/A before calling png_set_text(). It must be set to NULL if you want to
0N/A write tEXt or zTXt chunks. If you want your application to be able to
0N/A run with older versions of libpng, use
0N/A
0N/A #ifdef PNG_iTXt_SUPPORTED
0N/A png_text[i].lang = NULL;
0N/A #endif
0N/A
0N/A Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned
0N/A offsets (Eric S. Raymond).
0N/A Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into
0N/A PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED
0N/A macros, leaving the separate macros also available.
0N/A Removed comments on #endifs at the end of many short, non-nested #if-blocks.
4418N/A
4418N/AVersion 1.0.5f [December 6, 1999]
0N/A Changed makefile.solaris to issue a warning about potential problems when
0N/A the ucb "ld" is in the path ahead of the ccs "ld".
0N/A Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3.
0N/A Added sCAL chunk support (Eric S. Raymond).
4418N/A
4418N/AVersion 1.0.5g [December 7, 1999]
0N/A Fixed "png_free_spallettes" typo in png.h
0N/A Added code to handle new chunks in pngpread.c
0N/A Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block
0N/A Added "translated_key" to png_text structure and png_write_iTXt().
0N/A Added code in pngwrite.c to work around a newly discovered zlib bug.
4418N/A
4418N/AVersion 1.0.5h [December 10, 1999]
0N/A NOTE: regarding the note for version 1.0.5e, the following must also
0N/A be included in your code:
0N/A png_text[i].translated_key = NULL;
0N/A Unknown chunk handling is now supported.
0N/A Option to eliminate all floating point support was added. Some new
0N/A fixed-point functions such as png_set_gAMA_fixed() were added.
0N/A Expanded tabs and removed trailing blanks in source files.
4418N/A
4418N/AVersion 1.0.5i [December 13, 1999]
0N/A Added some type casts to silence compiler warnings.
0N/A Renamed "png_free_spalette" to "png_free_spalettes" for consistency.
0N/A Removed leading blanks from a #define in pngvcrd.c
0N/A Added some parameters to the new png_set_keep_unknown_chunks() function.
0N/A Added a test for up->location != 0 in the first instance of writing
0N/A unknown chunks in pngwrite.c
0N/A Changed "num" to "i" in png_free_spalettes() and png_free_unknowns() to
0N/A prevent recursion.
0N/A Added png_free_hIST() function.
0N/A Various patches to fix bugs in the sCAL and integer cHRM processing,
0N/A and to add some convenience macros for use with sCAL.
4418N/A
4418N/AVersion 1.0.5j [December 21, 1999]
0N/A Changed "unit" parameter of png_write_sCAL from png_byte to int, to work
0N/A around buggy compilers.
0N/A Added new type "png_fixed_point" for integers that hold float*100000 values
0N/A Restored backward compatibility of tEXt/zTXt chunk processing:
0N/A Restored the first four members of png_text to the same order as v.1.0.5d.
0N/A Added members "lang_key" and "itxt_length" to png_text struct. Set
0N/A text_length=0 when "text" contains iTXt data. Use the "compression"
0N/A member to distinguish among tEXt/zTXt/iTXt types. Added
0N/A PNG_ITXT_COMPRESSION_NONE (1) and PNG_ITXT_COMPRESSION_zTXt(2) macros.
0N/A The "Note" above, about backward incompatibility of libpng-1.0.5e, no
0N/A longer applies.
0N/A Fixed png_read|write_iTXt() to read|write parameters in the right order,
0N/A and to write the iTXt chunk after IDAT if it appears in the end_ptr.
0N/A Added pnggccrd.c, version of pngvcrd.c Intel assembler for gcc (Greg Roelofs)
0N/A Reversed the order of trying to write floating-point and fixed-point gAMA.
4418N/A
4418N/AVersion 1.0.5k [December 27, 1999]
0N/A Added many parentheses, e.g., "if (a && b & c)" becomes "if (a && (b & c))"
0N/A Added png_handle_as_unknown() function (Glenn)
0N/A Added png_free_chunk_list() function and chunk_list and num_chunk_list members
0N/A of png_ptr.
0N/A Eliminated erroneous warnings about multiple sPLT chunks and sPLT-after-PLTE.
0N/A Fixed a libpng-1.0.5h bug in pngrutil.c that was issuing erroneous warnings
0N/A about ignoring incorrect gAMA with sRGB (gAMA was in fact not ignored)
0N/A Added png_free_tRNS(); png_set_tRNS() now malloc's its own trans array (ESR).
0N/A Define png_get_int_32 when oFFs chunk is supported as well as when pCAL is.
0N/A Changed type of proflen from png_int_32 to png_uint_32 in png_get_iCCP().
4418N/A
4418N/AVersion 1.0.5l [January 1, 2000]
0N/A Added functions png_set_read_user_chunk_fn() and png_get_user_chunk_ptr()
0N/A for setting a callback function to handle unknown chunks and for
0N/A retrieving the associated user pointer (Glenn).
4418N/A
4418N/AVersion 1.0.5m [January 7, 2000]
0N/A Added high-level functions png_read_png(), png_write_png(), png_free_pixels().
4418N/A
4418N/AVersion 1.0.5n [January 9, 2000]
0N/A Added png_free_PLTE() function, and modified png_set_PLTE() to malloc its
0N/A own memory for info_ptr->palette. This makes it safe for the calling
0N/A application to free its copy of the palette any time after it calls
0N/A png_set_PLTE().
4418N/A
4418N/AVersion 1.0.5o [January 20, 2000]
0N/A Cosmetic changes only (removed some trailing blanks and TABs)
4418N/A
4418N/AVersion 1.0.5p [January 31, 2000]
0N/A Renamed pngdll.mak to makefile.bd32
0N/A Cosmetic changes in pngtest.c
4418N/A
4418N/AVersion 1.0.5q [February 5, 2000]
0N/A Relocated the makefile.solaris warning about PATH problems.
0N/A Fixed pngvcrd.c bug by pushing/popping registers in mmxsupport (Bruce Oberg)
0N/A Revised makefile.gcmmx
0N/A Added PNG_SETJMP_SUPPORTED, PNG_SETJMP_NOT_SUPPORTED, and PNG_ABORT() macros
4418N/A
4418N/AVersion 1.0.5r [February 7, 2000]
0N/A Removed superfluous prototype for png_get_itxt from png.h
0N/A Fixed a bug in pngrtran.c that improperly expanded the background color.
0N/A Return *num_text=0 from png_get_text() when appropriate, and fix documentation
0N/A of png_get_text() in libpng.txt/libpng.3.
4418N/A
4418N/AVersion 1.0.5s [February 18, 2000]
0N/A Added "png_jmp_env()" macro to pngconf.h, to help people migrate to the
0N/A new error handler that's planned for the next libpng release, and changed
0N/A example.c, pngtest.c, and contrib programs to use this macro.
0N/A Revised some of the DLL-export macros in pngconf.h (Greg Roelofs)
0N/A Fixed a bug in png_read_png() that caused it to fail to expand some images
0N/A that it should have expanded.
0N/A Fixed some mistakes in the unused and undocumented INCH_CONVERSIONS functions
0N/A in pngget.c
0N/A Changed the allocation of palette, history, and trans arrays back to
0N/A the version 1.0.5 method (linking instead of copying) which restores
0N/A backward compatibility with version 1.0.5. Added some remarks about
0N/A that in example.c. Added "free_me" member to info_ptr and png_ptr
0N/A and added png_free_data() function.
0N/A Updated makefile.linux and makefile.gccmmx to make directories conditionally.
0N/A Made cosmetic changes to pngasmrd.h
0N/A Added png_set_rows() and png_get_rows(), for use with png_read|write_png().
0N/A Modified png_read_png() to allocate info_ptr->row_pointers only if it
0N/A hasn't already been allocated.
4418N/A
4418N/AVersion 1.0.5t [March 4, 2000]
0N/A Changed png_jmp_env() migration aiding macro to png_jmpbuf().
0N/A Fixed "interlace" typo (should be "interlaced") in contrib/gregbook/read2-x.c
0N/A Fixed bug with use of PNG_BEFORE_IHDR bit in png_ptr->mode, introduced when
0N/A PNG_FLAG_HAVE_CHUNK_HEADER was moved into png_ptr->mode in version 1.0.5b
0N/A Files in contrib/gregbook were revised to use png_jmpbuf() and to select
0N/A a 24-bit visual if one is available, and to allow abbreviated options.
0N/A Files in contrib/pngminus were revised to use the png_jmpbuf() macro.
0N/A Removed spaces in makefile.linux and makefile.gcmmx, introduced in 1.0.5s
4418N/A
4418N/AVersion 1.0.5u [March 5, 2000]
0N/A Simplified the code that detects old png.h in png.c and pngtest.c
0N/A Renamed png_spalette (_p, _pp) to png_sPLT_t (_tp, _tpp)
0N/A Increased precision of rgb_to_gray calculations from 8 to 15 bits and
0N/A added png_set_rgb_to_gray_fixed() function.
0N/A Added makefile.bc32 (32-bit Borland C++, C mode)
4418N/A
4418N/AVersion 1.0.5v [March 11, 2000]
0N/A Added some parentheses to the png_jmpbuf macro definition.
0N/A Updated references to the zlib home page, which has moved to freesoftware.com.
0N/A Corrected bugs in documentation regarding png_read_row() and png_write_row().
0N/A Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt.
0N/A Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3,
0N/A revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin)
0N/A
4418N/AVersion 1.0.6 [March 20, 2000]
0N/A Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c
0N/A Added makefile.sggcc (SGI IRIX with gcc)
4418N/A
4418N/AVersion 1.0.6d [April 7, 2000]
0N/A Changed sprintf() to strcpy() in png_write_sCAL_s() to work without STDIO
0N/A Added data_length parameter to png_decompress_chunk() function
0N/A Revised documentation to remove reference to abandoned png_free_chnk functions
0N/A Fixed an error in png_rgb_to_gray_fixed()
0N/A Revised example.c, usage of png_destroy_write_struct().
0N/A Renamed makefile.ibmvac3 to makefile.ibmc, added libpng.icc IBM project file
0N/A Added a check for info_ptr->free_me&PNG_FREE_TEXT when freeing text in png.c
0N/A Simplify png_sig_bytes() function to remove use of non-ISO-C strdup().
4418N/A
4418N/AVersion 1.0.6e [April 9, 2000]
0N/A Added png_data_freer() function.
0N/A In the code that checks for over-length tRNS chunks, added check of
0N/A info_ptr->num_trans as well as png_ptr->num_trans (Matthias Benckmann)
0N/A Minor revisions of libpng.txt/libpng.3.
0N/A Check for existing data and free it if the free_me flag is set, in png_set_*()
0N/A and png_handle_*().
0N/A Only define PNG_WEIGHTED_FILTERS_SUPPORTED when PNG_FLOATING_POINT_SUPPORTED
0N/A is defined.
0N/A Changed several instances of PNG_NO_CONSOLE_ID to PNG_NO_STDIO in pngrutil.c
0N/A and mentioned the purposes of the two macros in libpng.txt/libpng.3.
4418N/A
4418N/AVersion 1.0.6f [April 14, 2000]
0N/A Revised png_set_iCCP() and png_set_rows() to avoid prematurely freeing data.
0N/A Add checks in png_set_text() for NULL members of the input text structure.
0N/A Revised libpng.txt/libpng.3.
4418N/A Removed superfluous prototype for png_set_iTXt from png.h
0N/A Removed "else" from pngread.c, after png_error(), and changed "0" to "length".
0N/A Changed several png_errors about malformed ancillary chunks to png_warnings.
4418N/A
4418N/AVersion 1.0.6g [April 24, 2000]
0N/A Added png_pass-* arrays to pnggccrd.c when PNG_USE_LOCAL_ARRAYS is defined.
0N/A Relocated paragraph about png_set_background() in libpng.3/libpng.txt
0N/A and other revisions (Matthias Benckmann)
0N/A Relocated info_ptr->free_me, png_ptr->free_me, and other info_ptr and
0N/A png_ptr members to restore binary compatibility with libpng-1.0.5
0N/A (breaks compatibility with libpng-1.0.6).
4418N/A
4418N/AVersion 1.0.6h [April 24, 2000]
0N/A Changed shared library so-number pattern from 2.x.y.z to xy.z (this builds
0N/A libpng.so.10 & libpng.so.10.6h instead of libpng.so.2 & libpng.so.2.1.0.6h)
0N/A This is a temporary change for test purposes.
4418N/A
4418N/AVersion 1.0.6i [May 2, 2000]
0N/A Rearranged some members at the end of png_info and png_struct, to put
0N/A unknown_chunks_num and free_me within the original size of the png_structs
0N/A and free_me, png_read_user_fn, and png_free_fn within the original png_info,
0N/A because some old applications allocate the structs directly instead of
0N/A using png_create_*().
0N/A Added documentation of user memory functions in libpng.txt/libpng.3
0N/A Modified png_read_png so that it will use user_allocated row_pointers
0N/A if present, unless free_me directs that it be freed, and added description
0N/A of the use of png_set_rows() and png_get_rows() in libpng.txt/libpng.3.
0N/A Added PNG_LEGACY_SUPPORTED macro, and #ifdef out all new (since version
0N/A 1.00) members of png_struct and png_info, to regain binary compatibility
0N/A when you define this macro. Capabilities lost in this event
0N/A are user transforms (new in version 1.0.0),the user transform pointer
0N/A (new in version 1.0.2), rgb_to_gray (new in 1.0.5), iCCP, sCAL, sPLT,
0N/A the high-level interface, and unknown chunks support (all new in 1.0.6).
0N/A This was necessary because of old applications that allocate the structs
0N/A directly as authors were instructed to do in libpng-0.88 and earlier,
0N/A instead of using png_create_*().
0N/A Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which
0N/A can be used to detect codes that directly allocate the structs, and
0N/A code to check these modes in png_read_init() and png_write_init() and
0N/A generate a libpng error if the modes aren't set and PNG_LEGACY_SUPPORTED
0N/A was not defined.
0N/A Added makefile.intel and updated makefile.watcom (Pawel Mrochen)
4418N/A
4418N/AVersion 1.0.6j [May 3, 2000]
0N/A Overloaded png_read_init() and png_write_init() with macros that convert
0N/A calls to png_read_init_2() or png_write_init_2() that check the version
0N/A and structure sizes.
4418N/A
4418N/AVersion 1.0.7beta11 [May 7, 2000]
0N/A Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes
0N/A which are no longer used.
0N/A Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is
0N/A defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXT_SUPPORTED
0N/A is defined.
0N/A Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory
0N/A overrun when old applications fill the info_ptr->text structure directly.
0N/A Added PNGAPI macro, and added it to the definitions of all exported functions.
0N/A Relocated version macro definitions ahead of the includes of zlib.h and
0N/A pngconf.h in png.h.
4418N/A
4418N/AVersion 1.0.7beta12 [May 12, 2000]
0N/A Revised pngset.c to avoid a problem with expanding the png_debug macro.
0N/A Deleted some extraneous defines from pngconf.h
0N/A Made PNG_NO_CONSOLE_IO the default condition when PNG_BUILD_DLL is defined.
0N/A Use MSC _RPTn debugging instead of fprintf if _MSC_VER is defined.
0N/A Added png_access_version_number() function.
0N/A Check for mask&PNG_FREE_CHNK (for TEXT, SCAL, PCAL) in png_free_data().
0N/A Expanded libpng.3/libpng.txt information about png_data_freer().
4418N/A
4418N/AVersion 1.0.7beta14 [May 17, 2000] (beta13 was not published)
0N/A Changed pnggccrd.c and pngvcrd.c to handle bad adaptive filter types as
0N/A warnings instead of errors, as pngrutil.c does.
0N/A Set the PNG_INFO_IDAT valid flag in png_set_rows() so png_write_png()
0N/A will actually write IDATs.
0N/A Made the default PNG_USE_LOCAL_ARRAYS depend on PNG_DLL instead of WIN32.
0N/A Make png_free_data() ignore its final parameter except when freeing data
0N/A that can have multiple instances (text, sPLT, unknowns).
0N/A Fixed a new bug in png_set_rows().
0N/A Removed info_ptr->valid tests from png_free_data(), as in version 1.0.5.
0N/A Added png_set_invalid() function.
0N/A Fixed incorrect illustrations of png_destroy_write_struct() in example.c.
4418N/A
4418N/AVersion 1.0.7beta15 [May 30, 2000]
0N/A Revised the deliberately erroneous Linux setjmp code in pngconf.h to produce
0N/A fewer error messages.
0N/A Rearranged checks for Z_OK to check the most likely path first in pngpread.c
0N/A and pngwutil.c.
0N/A Added checks in pngtest.c for png_create_*() returning NULL, and mentioned
0N/A in libpng.txt/libpng.3 the need for applications to check this.
0N/A Changed names of png_default_*() functions in pngtest to pngtest_*().
0N/A Changed return type of png_get_x|y_offset_*() from png_uint_32 to png_int_32.
0N/A Fixed some bugs in the unused PNG_INCH_CONVERSIONS functions in pngget.c
0N/A Set each pointer to NULL after freeing it in png_free_data().
0N/A Worked around a problem in pngconf.h; AIX's strings.h defines an "index"
4418N/A macro that conflicts with libpng's png_color_16.index. (Dimitri
4418N/A Papadapoulos)
0N/A Added "msvc" directory with MSVC++ project files (Simon-Pierre Cadieux).
4418N/A
4418N/AVersion 1.0.7beta16 [June 4, 2000]
0N/A Revised the workaround of AIX string.h "index" bug.
0N/A Added a check for overlength PLTE chunk in pngrutil.c.
0N/A Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer
0N/A indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler.
0N/A Added a warning in png_decompress_chunk() when it runs out of data, e.g.
0N/A when it tries to read an erroneous PhotoShop iCCP chunk.
0N/A Added PNG_USE_DLL macro.
0N/A Revised the copyright/disclaimer/license notice.
0N/A Added contrib/msvctest directory
4418N/A
4418N/AVersion 1.0.7rc1 [June 9, 2000]
0N/A Corrected the definition of PNG_TRANSFORM_INVERT_ALPHA (0x0400 not 0x0200)
0N/A Added contrib/visupng directory (Willem van Schaik)
4418N/A
4418N/AVersion 1.0.7beta18 [June 23, 2000]
0N/A Revised PNGAPI definition, and pngvcrd.c to work with __GCC__
0N/A and do not redefine PNGAPI if it is passed in via a compiler directive.
0N/A Revised visupng/PngFile.c to remove returns from within the Try block.
0N/A Removed leading underscores from "_PNG_H" and "_PNG_SAVE_BSD_SOURCE" macros.
0N/A Updated contrib/visupng/cexcept.h to version 1.0.0.
0N/A Fixed bugs in pngwrite.c and pngwutil.c that prevented writing iCCP chunks.
4418N/A
4418N/AVersion 1.0.7rc2 [June 28, 2000]
0N/A Updated license to include disclaimers required by UCITA.
0N/A Fixed "DJBPP" typo in pnggccrd.c introduced in beta18.
0N/A
4418N/AVersion 1.0.7 [July 1, 2000]
0N/A Revised the definition of "trans_values" in libpng.3/libpng.txt
4418N/A
4418N/AVersion 1.0.8beta1 [July 8, 2000]
0N/A Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks.
0N/A Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and
0N/A pngwutil.c.
0N/A Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h.
0N/A Removed unused "#include <assert.h>" from png.c
0N/A Added WindowsCE support.
0N/A Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment.
4418N/A
4418N/AVersion 1.0.8beta2 [July 10, 2000]
0N/A Added project files to the wince directory and made further revisions
0N/A of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE.
4418N/A
4418N/AVersion 1.0.8beta3 [July 11, 2000]
0N/A Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS()
0N/A for indexed-color input files to avoid potential double-freeing trans array
0N/A under some unusual conditions; problem was introduced in version 1.0.6f.
0N/A Further revisions to pngtest.c and files in the wince subdirectory.
4418N/A
4418N/AVersion 1.0.8beta4 [July 14, 2000]
0N/A Added the files pngbar.png and pngbar.jpg to the distribution.
0N/A Added makefile.cygwin, and cygwin support in pngconf.h
0N/A Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory)
4418N/A
4418N/AVersion 1.0.8rc1 [July 16, 2000]
0N/A Revised png_debug() macros and statements to eliminate compiler warnings.
0N/A
4418N/AVersion 1.0.8 [July 24, 2000]
0N/A Added png_flush() in pngwrite.c, after png_write_IEND().
0N/A Updated makefile.hpux to build a shared library.
4418N/A
4418N/AVersion 1.0.9beta1 [November 10, 2000]
0N/A Fixed typo in scripts/makefile.hpux
0N/A Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)
0N/A Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
0N/A Changed "cdrom.com" in documentation to "libpng.org"
0N/A Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).
0N/A Changed type of "params" from voidp to png_voidp in png_read|write_png().
0N/A Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h.
0N/A Revised the 3 instances of WRITEFILE in pngtest.c.
0N/A Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory.
0N/A Updated png.rc in dll/msvc project
0N/A Revised makefile.dec to define and use LIBPATH and INCPATH
0N/A Increased size of global png_libpng_ver[] array from 12 to 18 chars.
0N/A Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const.
0N/A Removed duplicate png_crc_finish() from png_handle_bKGD() function.
0N/A Added a warning when application calls png_read_update_info() multiple times.
0N/A Revised makefile.cygwin
0N/A Fixed bugs in iCCP support in pngrutil.c and pngwutil.c.
0N/A Replaced png_set_empty_plte_permitted() with png_permit_mng_features().
4418N/A
4418N/AVersion 1.0.9beta2 [November 19, 2000]
0N/A Renamed the "dll" subdirectory "projects".
0N/A Added borland project files to "projects" subdirectory.
0N/A Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate.
0N/A Add error message in png_set_compression_buffer_size() when malloc fails.
4418N/A
4418N/AVersion 1.0.9beta3 [November 23, 2000]
0N/A Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project.
0N/A Removed the png_flush() in pngwrite.c that crashes some applications
0N/A that don't set png_output_flush_fn.
0N/A Added makefile.macosx and makefile.aix to scripts directory.
4418N/A
4418N/AVersion 1.0.9beta4 [December 1, 2000]
0N/A Change png_chunk_warning to png_warning in png_check_keyword().
0N/A Increased the first part of msg buffer from 16 to 18 in png_chunk_error().
4418N/A
4418N/AVersion 1.0.9beta5 [December 15, 2000]
0N/A Added support for filter method 64 (for PNG datastreams embedded in MNG).
4418N/A
4418N/AVersion 1.0.9beta6 [December 18, 2000]
0N/A Revised png_set_filter() to accept filter method 64 when appropriate.
0N/A Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to
0N/A help prevent applications from using MNG features in PNG datastreams.
0N/A Added png_permit_mng_features() function.
0N/A Revised libpng.3/libpng.txt. Changed "filter type" to "filter method".
4418N/A
4418N/AVersion 1.0.9rc1 [December 23, 2000]
0N/A Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c
0N/A Fixed error handling of unknown compression type in png_decompress_chunk().
0N/A In pngconf.h, define __cdecl when _MSC_VER is defined.
4418N/A
4418N/AVersion 1.0.9beta7 [December 28, 2000]
0N/A Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.
0N/A Revised memory management in png_set_hIST and png_handle_hIST in a backward
0N/A compatible manner. PLTE and tRNS were revised similarly.
0N/A Revised the iCCP chunk reader to ignore trailing garbage.
4418N/A
4418N/AVersion 1.0.9beta8 [January 12, 2001]
0N/A Moved pngasmrd.h into pngconf.h.
0N/A Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop.
4418N/A
4418N/AVersion 1.0.9beta9 [January 15, 2001]
0N/A Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to
0N/A wince and msvc project module definition files.
0N/A Minor revision of makefile.cygwin.
0N/A Fixed bug with progressive reading of narrow interlaced images in pngpread.c
4418N/A
4418N/AVersion 1.0.9beta10 [January 16, 2001]
0N/A Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined.
0N/A Fixed "png_mmx_supported" typo in project definition files.
4418N/A
4418N/AVersion 1.0.9beta11 [January 19, 2001]
0N/A Updated makefile.sgi to make shared library.
0N/A Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED
0N/A by default, for the benefit of DLL forward compatibility. These will
0N/A be re-enabled in version 1.2.0.
4418N/A
4418N/AVersion 1.0.9rc2 [January 22, 2001]
0N/A Revised cygwin support.
0N/A
4418N/AVersion 1.0.9 [January 31, 2001]
0N/A Added check of cygwin's ALL_STATIC in pngconf.h
0N/A Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos.
4418N/A
4418N/AVersion 1.0.10beta1 [March 14, 2001]
0N/A Revised makefile.dec, makefile.sgi, and makefile.sggcc; added makefile.hpgcc.
0N/A Reformatted libpng.3 to eliminate bad line breaks.
0N/A Added checks for _mmx_supported in the read_filter_row function of pnggccrd.c
0N/A Added prototype for png_mmx_support() near the top of pnggccrd.c
0N/A Moved some error checking from png_handle_IHDR to png_set_IHDR.
0N/A Added PNG_NO_READ_SUPPORTED and PNG_NO_WRITE_SUPPORTED macros.
0N/A Revised png_mmx_support() function in pnggccrd.c
0N/A Restored version 1.0.8 PNG_WRITE_EMPTY_PLTE_SUPPORTED behavior in pngwutil.c
0N/A Fixed memory leak in contrib/visupng/PngFile.c
0N/A Fixed bugs in png_combine_row() in pnggccrd.c and pngvcrd.c (C version)
0N/A Added warnings when retrieving or setting gamma=0.
0N/A Increased the first part of msg buffer from 16 to 18 in png_chunk_warning().
4418N/A
4418N/AVersion 1.0.10rc1 [March 23, 2001]
0N/A Changed all instances of memcpy, strcpy, and strlen to png_memcpy, png_strcpy,
0N/A and png_strlen.
0N/A Revised png_mmx_supported() function in pnggccrd.c to return proper value.
0N/A Fixed bug in progressive reading (pngpread.c) with small images (height < 8).
0N/A
4418N/AVersion 1.0.10 [March 30, 2001]
0N/A Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin
0N/A Added beos project files (Chris Herborth)
4418N/A
4418N/AVersion 1.0.11beta1 [April 3, 2001]
0N/A Added type casts on several png_malloc() calls (Dimitri Papadapoulos).
0N/A Removed a no-longer needed AIX work-around from pngconf.h
0N/A Changed several "//" single-line comments to C-style in pnggccrd.c
4418N/A
4418N/AVersion 1.0.11beta2 [April 11, 2001]
0N/A Removed PNGAPI from several functions whose prototypes did not have PNGAPI.
0N/A Updated scripts/pngos2.def
4418N/A
4418N/AVersion 1.0.11beta3 [April 14, 2001]
0N/A Added checking the results of many instances of png_malloc() for NULL
4418N/A
4418N/AVersion 1.0.11beta4 [April 20, 2001]
0N/A Undid the changes from version 1.0.11beta3. Added a check for NULL return
0N/A from user's malloc_fn().
0N/A Removed some useless type casts of the NULL pointer.
0N/A Added makefile.netbsd
0N/A
4418N/AVersion 1.0.11 [April 27, 2001]
0N/A Revised makefile.netbsd
4418N/A
4418N/AVersion 1.0.12beta1 [May 14, 2001]
0N/A Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot)
0N/A Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h
0N/A Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings.
0N/A Eliminated the png_error about apps using png_read|write_init(). Instead,
0N/A libpng will reallocate the png_struct and info_struct if they are too small.
0N/A This retains future binary compatibility for old applications written for
0N/A libpng-0.88 and earlier.
4418N/A
4418N/AVersion 1.2.0beta1 [May 6, 2001]
0N/A Bumped DLLNUM to 2.
0N/A Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED
0N/A by default.
0N/A Added runtime selection of MMX features.
0N/A Added png_set_strip_error_numbers function and related macros.
4418N/A
4418N/AVersion 1.2.0beta2 [May 7, 2001]
0N/A Finished merging 1.2.0beta1 with version 1.0.11
0N/A Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
4418N/A
4418N/AVersion 1.2.0beta3 [May 17, 2001]
0N/A Enabled user memory function by default.
0N/A Modified png_create_struct so it passes user mem_ptr to user memory allocator.
0N/A Increased png_mng_features flag from png_byte to png_uint_32.
0N/A Bumped shared-library (so-number) and dll-number to 3.
4418N/A
4418N/AVersion 1.2.0beta4 [June 23, 2001]
0N/A Check for missing profile length field in iCCP chunk and free chunk_data
0N/A in case of truncated iCCP chunk.
0N/A Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc
0N/A Bumped dll-number from 2 to 3 in makefile.cygwin
0N/A Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly
0N/A if user attempts to run it on an 8-bit display.
0N/A Updated contrib/gregbook
0N/A Use png_malloc instead of png_zalloc to allocate palette in pngset.c
0N/A Updated makefile.ibmc
0N/A Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes
0N/A of png_write_oFFS width and height from png_uint_32 to png_int_32.
0N/A Updated example.c
0N/A Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c
4418N/A
4418N/AVersion 1.2.0beta5 [August 8, 2001]
0N/A Revised contrib/gregbook
0N/A Revised makefile.gcmmx
0N/A Revised pnggccrd.c to conditionally compile some thread-unsafe code only
0N/A when PNG_THREAD_UNSAFE_OK is defined.
0N/A Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with
0N/A value exceeding 2^bit_depth-1
0N/A Revised makefile.sgi and makefile.sggcc
0N/A Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c
0N/A Removed restriction that do_invert_mono only operate on 1-bit opaque files
0N/A
4418N/AVersion 1.2.0 [September 1, 2001]
0N/A Changed a png_warning() to png_debug() in pnggccrd.c
0N/A Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC().
4418N/A
4418N/AVersion 1.2.1beta1 [October 19, 2001]
0N/A Revised makefile.std in contrib/pngminus
0N/A Include background_1 in png_struct regardless of gamma support.
0N/A Revised makefile.netbsd and makefile.macosx, added makefile.darwin.
0N/A Revised example.c to provide more details about using row_callback().
4418N/A
4418N/AVersion 1.2.1beta2 [October 25, 2001]
0N/A Added type cast to each NULL appearing in a function call, except for
0N/A WINCE functions.
0N/A Added makefile.so9.
4418N/A
4418N/AVersion 1.2.1beta3 [October 27, 2001]
0N/A Removed type casts from all NULLs.
0N/A Simplified png_create_struct_2().
4418N/A
4418N/AVersion 1.2.1beta4 [November 7, 2001]
0N/A Revised png_create_info_struct() and png_creat_struct_2().
0N/A Added error message if png_write_info() was omitted.
0N/A Type cast NULLs appearing in function calls when _NO_PROTO or
0N/A PNG_TYPECAST_NULL is defined.
4418N/A
4418N/AVersion 1.2.1rc1 [November 24, 2001]
0N/A Type cast NULLs appearing in function calls except when PNG_NO_TYPECAST_NULL
0N/A is defined.
0N/A Changed typecast of "size" argument to png_size_t in pngmem.c calls to
0N/A the user malloc_fn, to agree with the prototype in png.h
0N/A Added a pop/push operation to pnggccrd.c, to preserve Eflag (Maxim Sobolev)
0N/A Updated makefile.sgi to recognize LIBPATH and INCPATH.
0N/A Updated various makefiles so "make clean" does not remove previous major
0N/A version of the shared library.
4418N/A
4418N/AVersion 1.2.1rc2 [December 4, 2001]
0N/A Always allocate 256-entry internal palette, hist, and trans arrays, to
0N/A avoid out-of-bounds memory reference caused by invalid PNG datastreams.
0N/A Added a check for prefix_length > data_length in iCCP chunk handler.
0N/A
4418N/AVersion 1.2.1 [December 7, 2001]
0N/A None.
4418N/A
4418N/AVersion 1.2.2beta1 [February 22, 2002]
0N/A Fixed a bug with reading the length of iCCP profiles (Larry Reeves).
0N/A Revised makefile.linux, makefile.gcmmx, and makefile.sgi to generate
0N/A libpng.a, libpng12.so (not libpng.so.3), and libpng12/png.h
0N/A Revised makefile.darwin to remove "-undefined suppress" option.
0N/A Added checks for gamma and chromaticity values over 21474.83, which exceed
0N/A the limit for PNG unsigned 32-bit integers when encoded.
0N/A Revised calls to png_create_read_struct() and png_create_write_struct()
0N/A for simpler debugging.
0N/A Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK)
4418N/A
4418N/AVersion 1.2.2beta2 [February 23, 2002]
0N/A Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths.
0N/A Check for invalid image dimensions in png_get_IHDR.
0N/A Added missing "fi;" in the install target of the SGI makefiles.
0N/A Added install-static to all makefiles that make shared libraries.
0N/A Always do gamma compensation when image is partially transparent.
4418N/A
4418N/AVersion 1.2.2beta3 [March 7, 2002]
0N/A Compute background.gray and background_1.gray even when color_type is RGB
0N/A in case image gets reduced to gray later.
0N/A Modified shared-library makefiles to install pkgconfig/libpngNN.pc.
0N/A Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown
0N/A Removed unused png_write_destroy_info prototype from png.h
0N/A Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case
0N/A Added install-shared target to all makefiles that make shared libraries.
0N/A Stopped a double free of palette, hist, and trans when not using free_me.
0N/A Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64.
4418N/A
4418N/AVersion 1.2.2beta4 [March 8, 2002]
0N/A Compute background.gray and background_1.gray even when color_type is RGB
0N/A in case image gets reduced to gray later (Jason Summers).
0N/A Relocated a misplaced /bin/rm in the "install-shared" makefile targets
0N/A Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library.
4418N/A
4418N/AVersion 1.2.2beta5 [March 26, 2002]
0N/A Added missing PNGAPI to several function definitions.
0N/A Check for invalid bit_depth or color_type in png_get_IHDR(), and
0N/A check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen).
0N/A Revised iTXt support to accept NULL for lang and lang_key.
0N/A Compute gamma for color components of background even when color_type is gray.
0N/A Changed "()" to "{}" in scripts/libpng.pc.in.
0N/A Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN
0N/A Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so
4418N/A
4418N/AVersion 1.2.2beta6 [March 31, 2002]
4418N/A
4418N/AVersion 1.0.13beta1 [March 31, 2002]
0N/A Prevent png_zalloc() from trying to memset memory that it failed to acquire.
0N/A Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate).
0N/A Ensure that the right function (user or default) is used to free the
0N/A png_struct after an error in png_create_read_struct_2().
4418N/A
4418N/AVersion 1.2.2rc1 [April 7, 2002]
4418N/A
4418N/AVersion 1.0.13rc1 [April 7, 2002]
0N/A Save the ebx register in pnggccrd.c (Sami Farin)
0N/A Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner).
0N/A Updated makefiles to put headers in include/libpng and remove old include/*.h.
0N/A
4418N/AVersion 1.2.2 [April 15, 2002]
4418N/A
4418N/AVersion 1.0.13 [April 15, 2002]
0N/A Revised description of png_set_filter() in libpng.3/libpng.txt.
0N/A Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd
4418N/A
4418N/AVersion 1.0.13patch01 [April 17, 2002]
4418N/A
4418N/AVersion 1.2.2patch01 [April 17, 2002]
4418N/A Changed ${PNGMAJ}.${PNGVER} bug to ${PNGVER} in makefile.sgi and
4418N/A makefile.sggcc
4418N/A Fixed VER -> PNGVER typo in makefile.macosx and added install-static to
4418N/A install
0N/A Added install: target to makefile.32sunu and makefile.64sunu
4418N/A
4418N/AVersion 1.0.13patch03 [April 18, 2002]
4418N/A
4418N/AVersion 1.2.2patch03 [April 18, 2002]
0N/A Revised 15 makefiles to link libpng.a to libpngNN.a and the include libpng
0N/A subdirectory to libpngNN subdirectory without the full pathname.
0N/A Moved generation of libpng.pc from "install" to "all" in 15 makefiles.
4418N/A
4418N/AVersion 1.2.3rc1 [April 28, 2002]
0N/A Added install-man target to 15 makefiles (Dimitri Papadopolous-Orfanos).
0N/A Added $(DESTDIR) feature to 24 makefiles (Tim Mooney)
0N/A Fixed bug with $prefix, should be $(prefix) in makefile.hpux.
0N/A Updated cygwin-specific portion of pngconf.h and revised makefile.cygwin
0N/A Added a link from libpngNN.pc to libpng.pc in 15 makefiles.
0N/A Added links from include/libpngNN/*.h to include/*.h in 24 makefiles.
0N/A Revised makefile.darwin to make relative links without full pathname.
0N/A Added setjmp() at the end of png_create_*_struct_2() in case user forgets
0N/A to put one in their application.
0N/A Restored png_zalloc() and png_zfree() prototypes to version 1.2.1 and
0N/A removed them from module definition files.
4418N/A
4418N/AVersion 1.2.3rc2 [May 1, 2002]
0N/A Fixed bug in reporting number of channels in pngget.c and pngset.c,
0N/A that was introduced in version 1.2.2beta5.
0N/A Exported png_zalloc(), png_zfree(), png_default_read(), png_default_write(),
0N/A png_default_flush(), and png_push_fill_buffer() and included them in
0N/A module definition files.
0N/A Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles.
4418N/A
4418N/AVersion 1.2.3rc3 [May 1, 2002]
0N/A Revised prototype for png_default_flush()
0N/A Remove old libpng.pc and libpngNN.pc before installing new ones.
4418N/A
4418N/AVersion 1.2.3rc4 [May 2, 2002]
0N/A Typos in *.def files (png_default_read|write -> png_default_read|write_data)
0N/A In makefiles, changed rm libpng.NN.pc to rm libpngNN.pc
4418N/A Added libpng-config and libpngNN-config and modified makefiles to install
4418N/A them.
0N/A Changed $(MANPATH) to $(DESTDIR)$(MANPATH) in makefiles
0N/A Added "Win32 DLL VB" configuration to projects/msvc/libpng.dsp
4418N/A
4418N/AVersion 1.2.3rc5 [May 11, 2002]
0N/A Changed "error" and "message" in prototypes to "error_message" and
0N/A "warning_message" to avoid namespace conflict.
0N/A Revised 15 makefiles to build libpng-config from libpng-config-*.in
0N/A Once more restored png_zalloc and png_zfree to regular nonexported form.
0N/A Restored png_default_read|write_data, png_default_flush, png_read_fill_buffer
4418N/A to nonexported form, but with PNGAPI, and removed them from module def
4418N/A files.
4418N/A
4418N/AVersion 1.2.3rc6 [May 14, 2002]
0N/A Removed "PNGAPI" from png_zalloc() and png_zfree() in png.c
0N/A Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp.
0N/A Removed leftover libpng-config "sed" script from four makefiles.
0N/A Revised libpng-config creating script in 16 makefiles.
0N/A
4418N/AVersion 1.2.3 [May 22, 2002]
0N/A Revised libpng-config target in makefile.cygwin.
0N/A Removed description of png_set_mem_fn() from documentation.
0N/A Revised makefile.freebsd.
0N/A Minor cosmetic changes to 15 makefiles, e.g., $(DI) = $(DESTDIR)/$(INCDIR).
0N/A Revised projects/msvc/README.txt
0N/A Changed -lpng to -lpngNN in LDFLAGS in several makefiles.
4418N/A
4418N/AVersion 1.2.4beta1 [May 24, 2002]
0N/A Added libpng.pc and libpng-config to "all:" target in 16 makefiles.
0N/A Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH)
0N/A Added missing "\" before closing double quote in makefile.gcmmx.
0N/A Plugged various memory leaks; added png_malloc_warn() and png_set_text_2()
0N/A functions.
4418N/A
4418N/AVersion 1.2.4beta2 [June 25, 2002]
0N/A Plugged memory leak of png_ptr->current_text (Matt Holgate).
0N/A Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison)
0N/A Added -soname to the loader flags in makefile.dec, makefile.sgi, and
0N/A makefile.sggcc.
0N/A Added "test-installed" target to makefile.linux, makefile.gcmmx,
0N/A makefile.sgi, and makefile.sggcc.
4418N/A
4418N/AVersion 1.2.4beta3 [June 28, 2002]
0N/A Plugged memory leak of row_buf in pngtest.c when there is a png_error().
0N/A Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data.
0N/A Added "test-installed" target to makefile.32sunu, makefile.64sunu,
4418N/A makefile.beos, makefile.darwin, makefile.dec, makefile.macosx,
0N/A makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9.
4418N/A
4418N/AVersion 1.2.4rc1 and 1.0.14rc1 [July 2, 2002]
0N/A Added "test-installed" target to makefile.cygwin and makefile.sco.
0N/A Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro.
0N/A
4418N/AVersion 1.2.4 and 1.0.14 [July 8, 2002]
0N/A Changed png_warning() to png_error() when width is too large to process.
4418N/A
4418N/AVersion 1.2.4patch01 [July 20, 2002]
0N/A Revised makefile.cygwin to use DLL number 12 instead of 13.
4418N/A
4418N/AVersion 1.2.5beta1 [August 6, 2002]
0N/A Added code to contrib/gregbook/readpng2.c to ignore unused chunks.
0N/A Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11)
0N/A Removed some stray *.o files from contrib/gregbook.
0N/A Changed png_error() to png_warning() about "Too much data" in pngpread.c
0N/A and about "Extra compressed data" in pngrutil.c.
0N/A Prevent png_ptr->pass from exceeding 7 in png_push_finish_row().
0N/A Updated makefile.hpgcc
0N/A Updated png.c and pnggccrd.c handling of return from png_mmx_support()
4418N/A
4418N/AVersion 1.2.5beta2 [August 15, 2002]
0N/A Only issue png_warning() about "Too much data" in pngpread.c when avail_in
0N/A is nonzero.
0N/A Updated makefiles to install a separate libpng.so.3 with its own rpath.
4418N/A
4418N/AVersion 1.2.5rc1 and 1.0.15rc1 [August 24, 2002]
0N/A Revised makefiles to not remove previous minor versions of shared libraries.
4418N/A
4418N/AVersion 1.2.5rc2 and 1.0.15rc2 [September 16, 2002]
0N/A Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared
0N/A library loader directive.
0N/A Added missing "$OBJSDLL" line to makefile.gcmmx.
0N/A Added missing "; fi" to makefile.32sunu.
4418N/A
4418N/AVersion 1.2.5rc3 and 1.0.15rc3 [September 18, 2002]
0N/A Revised libpng-config script.
0N/A
4418N/AVersion 1.2.5 and 1.0.15 [October 3, 2002]
0N/A Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux,
0N/A and makefile.aix.
0N/A Relocated two misplaced PNGAPI lines in pngtest.c
4418N/A
4418N/AVersion 1.2.6beta1 [October 22, 2002]
0N/A Commented out warning about uninitialized mmx_support in pnggccrd.c.
0N/A Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h.
0N/A Relocated two more misplaced PNGAPI lines in pngtest.c
0N/A Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams,
0N/A introduced in version 1.0.2.
0N/A Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu.
4418N/A
4418N/AVersion 1.2.6beta2 [November 1, 2002]
0N/A Added libpng-config "--ldopts" output.
0N/A Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)"
0N/A in makefiles.
4418N/A
4418N/AVersion 1.2.6beta3 [July 18, 2004]
0N/A Reverted makefile changes from version 1.2.6beta2 and some of the changes
0N/A from version 1.2.6beta1; these will be postponed until version 1.2.7.
0N/A Version 1.2.6 is going to be a simple bugfix release.
0N/A Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile.
0N/A Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
0N/A Added "#!/bin/sh" at the top of configure, for recognition of the
0N/A 'x' flag under Cygwin (Cosmin).
0N/A Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin).
0N/A Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin).
0N/A Fixed the special memory handler for Borland C under DOS, in pngmem.c
0N/A (Cosmin).
0N/A Removed some spurious assignments in pngrutil.c (Cosmin).
0N/A Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings
0N/A on 16-bit platforms (Cosmin).
0N/A Enclosed shift op expressions in parentheses, to silence warnings (Cosmin).
0N/A Used proper type png_fixed_point, to avoid problems on 16-bit platforms,
0N/A in png_handle_sRGB() (Cosmin).
0N/A Added compression_type to png_struct, and optimized the window size
0N/A inside the deflate stream (Cosmin).
0N/A Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin).
0N/A Fixed handling of unknown chunks that come after IDAT (Cosmin).
0N/A Allowed png_error() and png_warning() to work even if png_ptr == NULL
0N/A (Cosmin).
0N/A Replaced row_info->rowbytes with row_bytes in png_write_find_filter()
0N/A (Cosmin).
0N/A Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre).
0N/A Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded
0N/A values in png.c (Simon-Pierre, Cosmin).
0N/A Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre).
0N/A Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc
0N/A (Simon-Pierre).
0N/A Moved the definition of PNG_HEADER_VERSION_STRING near the definitions
0N/A of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin).
0N/A Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin).
0N/A Updated scripts/makefile.vc(a)win32 (Cosmin).
0N/A Updated the MSVC project (Simon-Pierre, Cosmin).
0N/A Updated the Borland C++ Builder project (Cosmin).
0N/A Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin).
0N/A Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin).
0N/A Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin).
0N/A Added extra guard around inclusion of Turbo C memory headers, in pngconf.h
0N/A (Cosmin).
0N/A Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to
0N/A projects/cbuilder5/ (Cosmin).
0N/A Moved projects/visualc6/png32ms.def to scripts/pngw32.def,
0N/A and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin).
0N/A Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin).
0N/A Changed line endings to DOS style in cbuilder5 and visualc6 files, even
0N/A in the tar.* distributions (Cosmin).
0N/A Updated contrib/visupng/VisualPng.dsp (Cosmin).
0N/A Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin).
0N/A Added a separate distribution with "configure" and supporting files (Junichi).
4418N/A
4418N/AVersion 1.2.6beta4 [July 28, 2004]
0N/A Added user ability to change png_size_t via a PNG_SIZE_T macro.
0N/A Added png_sizeof() and png_convert_size() functions.
0N/A Added PNG_SIZE_MAX (maximum value of a png_size_t variable.
0N/A Added check in png_malloc_default() for (size_t)size != (png_uint_32)size
0N/A which would indicate an overflow.
0N/A Changed sPLT failure action from png_error to png_warning and abandon chunk.
0N/A Changed sCAL and iCCP failures from png_error to png_warning and abandon.
0N/A Added png_get_uint_31(png_ptr, buf) function.
0N/A Added PNG_UINT_32_MAX macro.
0N/A Renamed PNG_MAX_UINT to PNG_UINT_31_MAX.
0N/A Made png_zalloc() issue a png_warning and return NULL on potential
0N/A overflow.
0N/A Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x
0N/A Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4.
0N/A Revised Borland portion of png_malloc() to return NULL or issue
0N/A png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK.
0N/A Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove
0N/A sequential read support.
0N/A Added some "#if PNG_WRITE_SUPPORTED" blocks.
4418N/A Added #ifdef to remove some redundancy in png_malloc_default().
0N/A Use png_malloc instead of png_zalloc to allocate the pallete.
4418N/A
4418N/AVersion 1.0.16rc1 and 1.2.6rc1 [August 4, 2004]
0N/A Fixed buffer overflow vulnerability in png_handle_tRNS()
0N/A Fixed integer arithmetic overflow vulnerability in png_read_png().
0N/A Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
0N/A duplicate chunk types to go undetected.
0N/A Fixed some timestamps in the -config version
0N/A Rearranged order of processing of color types in png_handle_tRNS().
0N/A Added ROWBYTES macro to calculate rowbytes without integer overflow.
0N/A Updated makefile.darwin and removed makefile.macosx from scripts directory.
0N/A Imposed default one million column, one-million row limits on the image
0N/A dimensions, and added png_set_user_limits() function to override them.
0N/A Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro.
0N/A Fixed wrong cast of returns from png_get_user_width|height_max().
0N/A Changed some "keep the compiler happy" from empty statements to returns,
0N/A Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution
4418N/A
4418N/AVersion 1.0.16rc2 and 1.2.6rc2 [August 7, 2004]
0N/A Revised makefile.darwin and makefile.solaris. Removed makefile.macosx.
0N/A Revised pngtest's png_debug_malloc() to use png_malloc() instead of
0N/A png_malloc_default() which is not supposed to be exported.
0N/A Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in
0N/A pngpread.c. Bug was introduced in 1.2.6rc1.
0N/A Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1.
0N/A Fixed old bug in RGB to Gray transformation.
0N/A Fixed problem with 64-bit compilers by casting arguments to abs()
0N/A to png_int_32.
0N/A Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9).
0N/A Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin)
0N/A Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles.
0N/A Added code to update the row_info->colortype in png_do_read_filler() (MSB).
4418N/A
4418N/AVersion 1.0.16rc3 and 1.2.6rc3 [August 9, 2004]
0N/A Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid
0N/A trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro.
0N/A Revised documentation of png_set_keep_unknown_chunks().
0N/A Check handle_as_unknown status in pngpread.c, as in pngread.c previously.
0N/A Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h
0N/A Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c
4418N/A
4418N/AVersion 1.0.16rc4 and 1.2.6rc4 [August 10, 2004]
0N/A Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of
0N/A "pinfo" was out of place).
4418N/A
4418N/AVersion 1.0.16rc5 and 1.2.6rc5 [August 10, 2004]
0N/A Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED
0N/A section of png.h where they were inadvertently placed in version rc3.
0N/A
4418N/AVersion 1.2.6 and 1.0.16 [August 15, 2004]
0N/A Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
4418N/A
4418N/AVersion 1.2.7beta1 [August 26, 2004]
0N/A Removed unused pngasmrd.h file.
0N/A Removed references to uu.net for archived files. Added references to
0N/A PNG Spec (second edition) and the PNG ISO/IEC Standard.
0N/A Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR.
0N/A Fixed bug with "optimized window size" in the IDAT datastream, that
0N/A causes libpng to write PNG files with incorrect zlib header bytes.
4418N/A
4418N/AVersion 1.2.7beta2 [August 28, 2004]
0N/A Fixed bug with sCAL chunk and big-endian machines (David Munro).
0N/A Undid new code added in 1.2.6rc2 to update the color_type in
0N/A png_set_filler().
0N/A Added png_set_add_alpha() that updates color type.
4418N/A
4418N/AVersion 1.0.17rc1 and 1.2.7rc1 [September 4, 2004]
0N/A Revised png_set_strip_filler() to not remove alpha if color_type has alpha.
0N/A
4418N/AVersion 1.2.7 and 1.0.17 [September 12, 2004]
0N/A Added makefile.hp64
0N/A Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin
4418N/A
4418N/AVersion 1.2.8beta1 [November 1, 2004]
0N/A Fixed bug in png_text_compress() that would fail to complete a large block.
0N/A Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during
0N/A strip alpha operation in png_do_strip_filler().
0N/A Added PNG_1_2_X definition in pngconf.h
4418N/A Use #ifdef to comment out png_info_init in png.c and png_read_init in
4418N/A pngread.c (as of 1.3.0)
4418N/A
4418N/AVersion 1.2.8beta2 [November 2, 2004]
0N/A Reduce color_type to a nonalpha type after strip alpha operation in
0N/A png_do_strip_filler().
4418N/A
4418N/AVersion 1.2.8beta3 [November 3, 2004]
0N/A Revised definitions of PNG_MAX_UINT_32, PNG_MAX_SIZE, and PNG_MAXSUM
4418N/A
4418N/AVersion 1.2.8beta4 [November 12, 2004]
0N/A Fixed (again) definition of PNG_LIBPNG_VER_DLLNUM in png.h (Cosmin).
0N/A Added PNG_LIBPNG_BUILD_PRIVATE in png.h (Cosmin).
0N/A Set png_ptr->zstream.data_type to Z_BINARY, to avoid unnecessary detection
0N/A of data type in deflate (Cosmin).
0N/A Deprecated but continue to support SPECIALBUILD and PRIVATEBUILD in favor of
0N/A PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING.
4418N/A
4418N/AVersion 1.2.8beta5 [November 20, 2004]
0N/A Use png_ptr->flags instead of png_ptr->transformations to pass
0N/A PNG_STRIP_ALPHA info to png_do_strip_filler(), to preserve ABI
0N/A compatibility.
4418N/A Revised handling of SPECIALBUILD, PRIVATEBUILD,
0N/A PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING.
4418N/A
4418N/AVersion 1.2.8rc1 [November 24, 2004]
0N/A Moved handling of BUILD macros from pngconf.h to png.h
0N/A Added definition of PNG_LIBPNG_BASE_TYPE in png.h, inadvertently
0N/A omitted from beta5.
0N/A Revised scripts/pngw32.rc
0N/A Despammed mailing addresses by masking "@" with "at".
0N/A Inadvertently installed a supposedly faster test version of pngrutil.c
4418N/A
4418N/AVersion 1.2.8rc2 [November 26, 2004]
0N/A Added two missing "\" in png.h
0N/A Change tests in pngread.c and pngpread.c to
0N/A if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA))
0N/A png_do_read_transformations(png_ptr);
4418N/A
4418N/AVersion 1.2.8rc3 [November 28, 2004]
0N/A Reverted pngrutil.c to version libpng-1.2.8beta5.
0N/A Added scripts/makefile.elf with supporting code in pngconf.h for symbol
0N/A versioning (John Bowler).
4418N/A
4418N/AVersion 1.2.8rc4 [November 29, 2004]
0N/A Added projects/visualc7 (Simon-pierre).
4418N/A
4418N/AVersion 1.2.8rc5 [November 29, 2004]
0N/A Fixed new typo in scripts/pngw32.rc
0N/A
4418N/AVersion 1.2.8 [December 3, 2004]
0N/A Removed projects/visualc7, added projects/visualc71.
0N/A
4418N/AVersion 1.2.9beta1 [February 21, 2006]
0N/A Initialized some structure members in pngwutil.c to avoid gcc-4.0.0 complaints
0N/A Revised man page and libpng.txt to make it clear that one should not call
0N/A png_read_end or png_write_end after png_read_png or png_write_png.
0N/A Updated references to png-mng-implement mailing list.
0N/A Fixed an incorrect typecast in pngrutil.c
0N/A Added PNG_NO_READ_SUPPORTED conditional for making a write-only library.
0N/A Added PNG_NO_WRITE_INTERLACING_SUPPORTED conditional.
0N/A Optimized alpha-inversion loops in pngwtran.c
0N/A Moved test for nonzero gamma outside of png_build_gamma_table() in pngrtran.c
0N/A Make sure num_trans is <= 256 before copying data in png_set_tRNS().
0N/A Make sure num_palette is <= 256 before copying data in png_set_PLTE().
0N/A Interchanged order of write_swap_alpha and write_invert_alpha transforms.
0N/A Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin).
0N/A Optimized zlib window flag (CINFO) in contrib/pngsuite/*.png (Cosmin).
0N/A Updated scripts/makefile.bc32 for Borland C++ 5.6 (Cosmin).
0N/A Exported png_get_uint_32, png_save_uint_32, png_get_uint_16, png_save_uint_16,
0N/A png_get_int_32, png_save_int_32, png_get_uint_31 (Cosmin).
0N/A Added type cast (png_byte) in png_write_sCAL() (Cosmin).
0N/A Fixed scripts/makefile.cygwin (Christian Biesinger, Cosmin).
0N/A Default iTXt support was inadvertently enabled.
0N/A
4418N/AVersion 1.2.9beta2 [February 21, 2006]
0N/A Check for png_rgb_to_gray and png_gray_to_rgb read transformations before
0N/A checking for png_read_dither in pngrtran.c
0N/A Revised checking of chromaticity limits to accommodate extended RGB
0N/A colorspace (John Denker).
0N/A Changed line endings in some of the project files to CRLF, even in the
0N/A "Unix" tar distributions (Cosmin).
0N/A Made png_get_int_32 and png_save_int_32 always available (Cosmin).
0N/A Updated scripts/pngos2.def, scripts/pngw32.def and projects/wince/png32ce.def
0N/A with the newly exported functions.
0N/A Eliminated distributions without the "configure" script.
0N/A Updated INSTALL instructions.
0N/A
4418N/AVersion 1.2.9beta3 [February 24, 2006]
0N/A Fixed CRCRLF line endings in contrib/visupng/VisualPng.dsp
0N/A Made libpng.pc respect EXEC_PREFIX (D. P. Kreil, J. Bowler)
0N/A Removed reference to pngasmrd.h from Makefile.am
0N/A Renamed CHANGES to ChangeLog.
0N/A Renamed LICENSE to COPYING.
0N/A Renamed ANNOUNCE to NEWS.
0N/A Created AUTHORS file.
0N/A
4418N/AVersion 1.2.9beta4 [March 3, 2006]
0N/A Changed definition of PKGCONFIG from $prefix/lib to $libdir in configure.ac
0N/A Reverted to filenames LICENSE and ANNOUNCE; removed AUTHORS and COPYING.
0N/A Removed newline from the end of some error and warning messages.
0N/A Removed test for sqrt() from configure.ac and configure.
0N/A Made swap tables in pngtrans.c PNG_CONST (Carlo Bramix).
0N/A Disabled default iTXt support that was inadvertently enabled in
0N/A libpng-1.2.9beta1.
0N/A Added "OS2" to list of systems that don't need underscores, in pnggccrd.c
0N/A Removed libpng version and date from *.c files.
0N/A
4418N/AVersion 1.2.9beta5 [March 4, 2006]
0N/A Removed trailing blanks from source files.
0N/A Put version and date of latest change in each source file, and changed
0N/A copyright year accordingly.
4418N/A More cleanup of configure.ac, Makefile.am, and associated scripts.
0N/A Restored scripts/makefile.elf which was inadvertently deleted.
0N/A
4418N/AVersion 1.2.9beta6 [March 6, 2006]
4418N/A Fixed typo (RELEASE) in configuration files.
4418N/A
4418N/AVersion 1.2.9beta7 [March 7, 2006]
0N/A Removed libpng.vers and libpng.sym from libpng12_la_SOURCES in Makefile.am
0N/A Fixed inconsistent #ifdef's around png_sig_bytes() and png_set_sCAL_s()
0N/A in png.h.
0N/A Updated makefile.elf as suggested by debian.
0N/A Made cosmetic changes to some makefiles, adding LN_SF and other macros.
0N/A Made some makefiles accept "exec_prefix".
0N/A
4418N/AVersion 1.2.9beta8 [March 9, 2006]
0N/A Fixed some "#if defined (..." which should be "#if defined(..."
0N/A Bug introduced in libpng-1.2.8.
0N/A Fixed inconsistency in definition of png_default_read_data()
0N/A Restored blank that was lost from makefile.sggcc "clean" target in beta7.
0N/A Revised calculation of "current" and "major" for irix in ltmain.sh
0N/A Changed "mkdir" to "MKDIR_P" in some makefiles.
0N/A Separated PNG_EXPAND and PNG_EXPAND_tRNS.
0N/A Added png_set_expand_gray_1_2_4_to_8() and deprecated
0N/A png_set_gray_1_2_4_to_8() which also expands tRNS to alpha.
0N/A
4418N/AVersion 1.2.9beta9 [March 10, 2006]
0N/A Include "config.h" in pngconf.h when available.
0N/A Added some checks for NULL png_ptr or NULL info_ptr (timeless)
0N/A
4418N/AVersion 1.2.9beta10 [March 20, 2006]
0N/A Removed extra CR from contrib/visualpng/VisualPng.dsw (Cosmin)
0N/A Made pnggccrd.c PIC-compliant (Christian Aichinger).
0N/A Added makefile.mingw (Wolfgang Glas).
0N/A Revised pngconf.h MMX checking.
0N/A
4418N/AVersion 1.2.9beta11 [March 22, 2006]
0N/A Fixed out-of-order declaration in pngwrite.c that was introduced in beta9
0N/A Simplified some makefiles by using LIBSO, LIBSOMAJ, and LIBSOVER macros.
0N/A
4418N/AVersion 1.2.9rc1 [March 31, 2006]
0N/A Defined PNG_USER_PRIVATEBUILD when including "pngusr.h" (Cosmin).
0N/A Removed nonsensical assertion check from pngtest.c (Cosmin).
0N/A
4418N/AVersion 1.2.9 [April 14, 2006]
0N/A Revised makefile.beos and added "none" selector in ltmain.sh
0N/A
4418N/AVersion 1.2.10beta1 [April 15, 2006]
0N/A Renamed "config.h" to "png_conf.h" and revised Makefile.am to add
0N/A -DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h
0N/A to include png_conf.h only when PNG_BUILDING_LIBPNG is defined.
0N/A
4418N/AVersion 1.2.10beta2 [April 15, 2006]
0N/A Manually updated Makefile.in and configure. Changed png_conf.h.in
0N/A back to config.h.
0N/A
4418N/AVersion 1.2.10beta3 [April 15, 2006]
0N/A Change png_conf.h back to config.h in pngconf.h.
0N/A
4418N/AVersion 1.2.10beta4 [April 16, 2006]
0N/A Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*.
0N/A
4418N/AVersion 1.2.10beta5 [April 16, 2006]
0N/A Added a configure check for compiling assembler code in pnggccrd.c
0N/A
4418N/AVersion 1.2.10beta6 [April 17, 2006]
0N/A Revised the configure check for pnggccrd.c
0N/A Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@
0N/A Added @LIBPNG_DEFINES@ to arguments when building libpng.sym
0N/A
4418N/AVersion 1.2.10beta7 [April 18, 2006]
0N/A Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles.
0N/A
4418N/AVersion 1.2.10rc1 [April 19, 2006]
0N/A Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD
0N/A Fixed "LN_FS" typo in makefile.sco and makefile.solaris.
0N/A
4418N/AVersion 1.2.10rc2 [April 20, 2006]
0N/A Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE
0N/A in configure.ac and configure
0N/A Made the configure warning about versioned symbols less arrogant.
0N/A
4418N/AVersion 1.2.10rc3 [April 21, 2006]
0N/A Added a note in libpng.txt that png_set_sig_bytes(8) can be used when
0N/A writing an embedded PNG without the 8-byte signature.
0N/A Revised makefiles and configure to avoid making links to libpng.so.*
0N/A
4418N/AVersion 1.2.10 [April 23, 2006]
0N/A Reverted configure to "rc2" state.
0N/A
4418N/AVersion 1.2.11beta1 [May 31, 2006]
0N/A scripts/libpng.pc.in contained "configure" style version info and would
0N/A not work with makefiles.
0N/A The shared-library makefiles were linking to libpng.so.0 instead of
0N/A libpng.so.3 compatibility as the library.
0N/A
4418N/AVersion 1.2.11beta2 [June 2, 2006]
0N/A Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
0N/A buffer overflow.
0N/A Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb)
0N/A
4418N/AVersion 1.2.11beta3 [June 5, 2006]
0N/A Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin).
0N/A Removed the accidental leftover Makefile.in~ (Cosmin).
0N/A Avoided potential buffer overflow and optimized buffer in
0N/A png_write_sCAL(), png_write_sCAL_s() (Cosmin).
0N/A Removed the include directories and libraries from CFLAGS and LDFLAGS
0N/A in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin).
0N/A
4418N/AVersion 1.2.11beta4 [June 6, 2006]
0N/A Allow zero-length IDAT chunks after the entire zlib datastream, but not
0N/A after another intervening chunk type.
0N/A
4418N/AVersion 1.0.19rc1, 1.2.11rc1 [June 13, 2006]
0N/A Deleted extraneous square brackets from [config.h] in configure.ac
0N/A
4418N/AVersion 1.0.19rc2, 1.2.11rc2 [June 14, 2006]
0N/A Added prototypes for PNG_INCH_CONVERSIONS functions to png.h
0N/A Revised INSTALL and autogen.sh
0N/A Fixed typo in several makefiles (-W1 should be -Wl)
0N/A Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
0N/A
4418N/AVersion 1.0.19rc3, 1.2.11rc3 [June 15, 2006]
0N/A Removed the new typedefs for 64-bit systems (delay until version 1.4.0)
0N/A Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid
0N/A reading out of bounds.
0N/A
4418N/AVersion 1.0.19rc4, 1.2.11rc4 [June 15, 2006]
0N/A Really removed the new typedefs for 64-bit systems.
0N/A
4418N/AVersion 1.0.19rc5, 1.2.11rc5 [June 22, 2006]
0N/A Removed png_sig_bytes entry from scripts/pngw32.def
0N/A
4418N/AVersion 1.0.19, 1.2.11 [June 26, 2006]
0N/A None.
0N/A
4418N/AVersion 1.0.20, 1.2.12 [June 27, 2006]
0N/A Really increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
0N/A buffer overflow.
0N/A
4418N/AVersion 1.2.13beta1 [October 2, 2006]
0N/A Removed AC_FUNC_MALLOC from configure.ac
0N/A Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
0N/A Change "logical" to "bitwise" throughout documentation.
0N/A Detect and fix attempt to write wrong iCCP profile length.
0N/A
4418N/AVersion 1.0.21, 1.2.13 [November 14, 2006]
0N/A Fix potential buffer overflow in sPLT chunk handler.
0N/A Fix Makefile.am to not try to link to noexistent files.
0N/A Check all exported functions for NULL png_ptr.
0N/A
4418N/AVersion 1.2.14beta1 [November 17, 2006]
0N/A Relocated three misplaced tests for NULL png_ptr.
0N/A Built Makefile.in with automake-1.9.6 instead of 1.9.2.
0N/A Build configure with autoconf-2.60 instead of 2.59
0N/A
4418N/AVersion 1.2.14beta2 [November 17, 2006]
0N/A Added some typecasts in png_zalloc().
0N/A
4418N/AVersion 1.2.14rc1 [November 20, 2006]
0N/A Changed "strtod" to "png_strtod" in pngrutil.c
0N/A
4418N/AVersion 1.0.22, 1.2.14 [November 27, 2006]
0N/A Added missing "$(srcdir)" in Makefile.am and Makefile.in
0N/A
4418N/AVersion 1.2.15beta1 [December 3, 2006]
0N/A Generated configure with autoconf-2.61 instead of 2.60
0N/A Revised configure.ac to update libpng.pc and libpng-config.
0N/A
4418N/AVersion 1.2.15beta2 [December 3, 2006]
0N/A Always export MMX asm functions, just stubs if not building pnggccrd.c
0N/A
4418N/AVersion 1.2.15beta3 [December 4, 2006]
0N/A Add "png_bytep" typecast to profile while calculating length in pngwutil.c
0N/A
4418N/AVersion 1.2.15beta4 [December 7, 2006]
0N/A Added scripts/CMakeLists.txt
0N/A Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta
0N/A
4418N/AVersion 1.2.15beta5 [December 7, 2006]
0N/A Changed some instances of PNG_ASSEMBLER_* to PNG_MMX_* in pnggccrd.c
0N/A Revised scripts/CMakeLists.txt
0N/A
4418N/AVersion 1.2.15beta6 [December 13, 2006]
0N/A Revised scripts/CMakeLists.txt and configure.ac
0N/A
4418N/AVersion 1.2.15rc1 [December 18, 2006]
0N/A Revised scripts/CMakeLists.txt
0N/A
4418N/AVersion 1.2.15rc2 [December 21, 2006]
0N/A Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers.
0N/A Added scripts/makefile.nommx
0N/A
4418N/AVersion 1.2.15rc3 [December 25, 2006]
4418N/A Fixed shared library numbering error that was introduced in 1.2.15beta6.
4418N/A
4418N/AVersion 1.2.15rc4 [December 27, 2006]
0N/A Fixed handling of rgb_to_gray when png_ptr->color.gray isn't set.
0N/A
4418N/AVersion 1.2.15rc5 [December 31, 2006]
0N/A Revised handling of rgb_to_gray.
0N/A
4418N/AVersion 1.2.15 [January 5, 2007]
0N/A Added some (unsigned long) typecasts in pngtest.c to avoid printing errors.
0N/A
4418N/AVersion 1.2.16beta1 [January 6, 2007]
0N/A Fix bugs in makefile.nommx
0N/A
4418N/AVersion 1.2.16beta2 [January 16, 2007]
0N/A Revised scripts/CMakeLists.txt
4418N/A
4418N/AVersion 1.2.16 [January 31, 2007]
0N/A No changes.
4418N/A
4418N/AVersion 1.2.17beta1 [March 6, 2007]
0N/A Revised scripts/CMakeLists.txt to install both shared and static libraries.
0N/A Deleted a redundant line from pngset.c.
4418N/A
4418N/AVersion 1.2.17beta2 [April 26, 2007]
0N/A Relocated misplaced test for png_ptr == NULL in pngpread.c
0N/A Change "==" to "&" for testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN
0N/A flags.
0N/A Changed remaining instances of PNG_ASSEMBLER_* to PNG_MMX_*
0N/A Added pngerror() when write_IHDR fails in deflateInit2().
0N/A Added "const" to some array declarations.
0N/A Mention examples of libpng usage in the libpng*.txt and libpng.3 documents.
0N/A
4418N/AVersion 1.2.17rc1 [May 4, 2007]
0N/A No changes.
0N/A
4418N/AVersion 1.2.17rc2 [May 8, 2007]
0N/A Moved several PNG_HAVE_* macros out of PNG_INTERNAL because applications
0N/A calling set_unknown_chunk_location() need them.
0N/A Changed transformation flag from PNG_EXPAND_tRNS to PNG_EXPAND in
0N/A png_set_expand_gray_1_2_4_to_8().
0N/A Added png_ptr->unknown_chunk to hold working unknown chunk data, so it
0N/A can be free'ed in case of error. Revised unknown chunk handling in
0N/A pngrutil.c and pngpread.c to use this structure.
4418N/A
4418N/AVersion 1.2.17rc3 [May 8, 2007]
0N/A Revised symbol-handling in configure script.
0N/A
4418N/AVersion 1.2.17rc4 [May 10, 2007]
0N/A Revised unknown chunk handling to avoid storing unknown critical chunks.
0N/A
4418N/AVersion 1.0.25 [May 15, 2007]
4418N/AVersion 1.2.17 [May 15, 2007]
0N/A Added "png_ptr->num_trans=0" before error return in png_handle_tRNS,
4418N/A to eliminate a vulnerability (CVE-2007-2445, CERT VU#684664)
4418N/A
4418N/AVersion 1.0.26 [May 15, 2007]
4418N/AVersion 1.2.18 [May 15, 2007]
0N/A Reverted the libpng-1.2.17rc3 change to symbol-handling in configure script
0N/A
4418N/AVersion 1.2.19beta1 [May 18, 2007]
4418N/A Changed "const static" to "static PNG_CONST" everywhere, mostly undoing
4418N/A change of libpng-1.2.17beta2. Changed other "const" to "PNG_CONST"
4418N/A Changed some handling of unused parameters, to avoid compiler warnings.
4418N/A "if (unused == NULL) return;" becomes "unused = unused".
4418N/A
4418N/AVersion 1.2.19beta2 [May 18, 2007]
4418N/A Only use the valid bits of tRNS value in png_do_expand() (Brian Cartier)
4418N/A
4418N/AVersion 1.2.19beta3 [May 19, 2007]
4418N/A Add some "png_byte" typecasts in png_check_keyword() and write new_key
4418N/A instead of key in zTXt chunk (Kevin Ryde).
4418N/A
4418N/AVersion 1.2.19beta4 [May 21, 2007]
4418N/A Add png_snprintf() function and use it in place of sprint() for improved
4418N/A defense against buffer overflows.
4418N/A
4418N/AVersion 1.2.19beta5 [May 21, 2007]
4418N/A Fixed png_handle_tRNS() to only use the valid bits of tRNS value.
4418N/A Changed handling of more unused parameters, to avoid compiler warnings.
4418N/A Removed some PNG_CONST in pngwutil.c to avoid compiler warnings.
4418N/A
4418N/AVersion 1.2.19beta6 [May 22, 2007]
4418N/A Added some #ifdef PNG_MMX_CODE_SUPPORTED where needed in pngvcrd.c
4418N/A Added a special "_MSC_VER" case that defines png_snprintf to _snprintf
4418N/A
4418N/AVersion 1.2.19beta7 [May 22, 2007]
4418N/A Squelched png_squelch_warnings() in pnggccrd.c and added
4418N/A an #ifdef PNG_MMX_CODE_SUPPORTED block around the declarations that caused
4418N/A the warnings that png_squelch_warnings was squelching.
4418N/A
4418N/AVersion 1.2.19beta8 [May 22, 2007]
4418N/A Removed __MMX__ from test in pngconf.h.
4418N/A
4418N/AVersion 1.2.19beta9 [May 23, 2007]
4418N/A Made png_squelch_warnings() available via PNG_SQUELCH_WARNINGS macro.
4418N/A Revised png_squelch_warnings() so it might work.
4418N/A Updated makefile.sgcc and makefile.solaris; added makefile.solaris-x86.
4418N/A
4418N/AVersion 1.2.19beta10 [May 24, 2007]
4418N/A Resquelched png_squelch_warnings(), use "__attribute__((used))" instead.
4418N/A
4418N/AVersion 1.4.0beta1 [April 20, 2006]
4418N/A Enabled iTXt support (changes png_struct, thus requires so-number change).
4418N/A Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED
4418N/A Eliminated PNG_1_0_X and PNG_1_2_X macros.
4418N/A Removed deprecated functions png_read_init, png_write_init, png_info_init,
4418N/A png_permit_empty_plte, png_set_gray_1_2_4_to_8, png_check_sig, and
4418N/A removed the deprecated macro PNG_MAX_UINT.
4418N/A Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h
4418N/A Removed many WIN32_WCE #ifdefs (Cosmin).
4418N/A Reduced dependency on C-runtime library when on Windows (Simon-Pierre)
4418N/A Replaced sprintf() with png_sprintf() (Simon-Pierre)
4418N/A
4418N/AVersion 1.4.0beta2 [April 20, 2006]
4418N/A Revised makefiles and configure to avoid making links to libpng.so.*
4418N/A Moved some leftover MMX-related defines from pngconf.h to pngintrn.h
4418N/A Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def
4418N/A
4418N/AVersion 1.4.0beta3 [May 10, 2006]
4418N/A Updated scripts/pngw32.def to comment out MMX functions.
4418N/A Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros.
4418N/A Scripts/libpng.pc.in contained "configure" style version info and would
4418N/A not work with makefiles.
4418N/A Revised pngconf.h and added pngconf.h.in, so makefiles and configure can
4418N/A pass defines to libpng and applications.
4418N/A
4418N/AVersion 1.4.0beta4 [May 11, 2006]
4418N/A Revised configure.ac, Makefile.am, and many of the makefiles to write
4418N/A their defines in pngconf.h.
4418N/A
4418N/AVersion 1.4.0beta5 [May 15, 2006]
4418N/A Added a missing semicolon in Makefile.am and Makefile.in
4418N/A Deleted extraneous square brackets from configure.ac
4418N/A
4418N/AVersion 1.4.0beta6 [June 2, 2006]
4418N/A Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
4418N/A buffer overflow.
4418N/A Changed sonum from 0 to 1.
4418N/A Removed unused prototype for png_check_sig() from png.h
4418N/A
4418N/AVersion 1.4.0beta7 [June 16, 2006]
4418N/A Exported png_write_sig (Cosmin).
4418N/A Optimized buffer in png_handle_cHRM() (Cosmin).
4418N/A Set pHYs = 2835 x 2835 pixels per meter, and added
4418N/A sCAL = 0.352778e-3 x 0.352778e-3 meters, in pngtest.png (Cosmin).
4418N/A Added png_set_benign_errors(), png_benign_error(), png_chunk_benign_error().
4418N/A Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
4418N/A Added "(unsigned long)" typecast on png_uint_32 variables in printf lists.
4418N/A
4418N/AVersion 1.4.0beta8 [June 22, 2006]
4418N/A Added demonstration of user chunk support in pngtest.c, to support the
4418N/A public sTER chunk and a private vpAg chunk.
4418N/A
4418N/AVersion 1.4.0beta9 [July 3, 2006]
4418N/A Removed ordinals from scripts/pngw32.def and removed png_info_int and
4418N/A png_set_gray_1_2_4_to_8 entries.
4418N/A Inline call of png_get_uint_32() in png_get_uint_31().
4418N/A Use png_get_uint_31() to get vpAg width and height in pngtest.c
4418N/A Removed WINCE and Netware projects.
4418N/A Removed standalone Y2KINFO file.
4418N/A
4418N/AVersion 1.4.0beta10 [July 12, 2006]
4418N/A Eliminated automatic copy of pngconf.h to pngconf.h.in from configure and
4418N/A some makefiles, because it was not working reliably. Instead, distribute
4418N/A pngconf.h.in along with pngconf.h and cause configure and some of the
4418N/A makefiles to update pngconf.h from pngconf.h.in.
4418N/A Added pngconf.h to DEPENDENCIES in Makefile.am
4418N/A
4418N/AVersion 1.4.0beta11 [August 19, 2006]
4418N/A Removed AC_FUNC_MALLOC from configure.ac.
4418N/A Added a warning when writing iCCP profile with mismatched profile length.
4418N/A Patched pnggccrd.c to assemble on x86_64 platforms.
4418N/A Moved chunk header reading into a separate function png_read_chunk_header()
4418N/A in pngrutil.c. The chunk header (len+sig) is now serialized in a single
4418N/A operation (Cosmin).
4418N/A Implemented support for I/O states. Added png_ptr member io_state, and
4418N/A functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
4418N/A (Cosmin).
4418N/A Added png_get_io_chunk_name and png_get_io_state to scripts/*.def (Cosmin).
4418N/A Renamed scripts/pngw32.* to scripts/pngwin.* (Cosmin).
4418N/A Removed the include directories and libraries from CFLAGS and LDFLAGS
4418N/A in scripts/makefile.gcc (Cosmin).
4418N/A Used png_save_uint_32() to set vpAg width and height in pngtest.c (Cosmin).
4418N/A Cast to proper type when getting/setting vpAg units in pngtest.c (Cosmin).
4418N/A Added pngintrn.h to the Visual C++ projects (Cosmin).
4418N/A Removed scripts/list (Cosmin).
4418N/A Updated copyright year in scripts/pngwin.def (Cosmin).
4418N/A Removed PNG_TYPECAST_NULL and used standard NULL consistently (Cosmin).
4418N/A Disallowed the user to redefine png_size_t, and enforced a consistent use
4418N/A of png_size_t across libpng (Cosmin).
4418N/A Changed the type of png_ptr->rowbytes, PNG_ROWBYTES() and friends
4418N/A to png_size_t (Cosmin).
4418N/A Removed png_convert_size() and replaced png_sizeof with sizeof (Cosmin).
4418N/A Removed some unnecessary type casts (Cosmin).
4418N/A Changed prototype of png_get_compression_buffer_size() and
4418N/A png_set_compression_buffer_size() to work with png_size_t instead of
4418N/A png_uint_32 (Cosmin).
4418N/A Removed png_memcpy_check() and png_memset_check() (Cosmin).
4418N/A Fixed a typo (png_byte --> png_bytep) in libpng.3 and libpng.txt (Cosmin).
4418N/A Clarified that png_zalloc() does not clear the allocated memory,
4418N/A and png_zalloc() and png_zfree() cannot be PNGAPI (Cosmin).
4418N/A Renamed png_mem_size_t to png_alloc_size_t, fixed its definition in
4418N/A pngconf.h, and used it in all memory allocation functions (Cosmin).
4418N/A Renamed pngintrn.h to pngpriv.h, added a comment at the top of the file
4418N/A mentioning that the symbols declared in that file are private, and
4418N/A updated the scripts and the Visual C++ projects accordingly (Cosmin).
4418N/A Removed circular references between pngconf.h and pngconf.h.in in
4418N/A scripts/makefile.vc*win32 (Cosmin).
4418N/A Removing trailing '.' from the warning and error messages (Cosmin).
4418N/A Added pngdefs.h that is built by makefile or configure, instead of
4418N/A pngconf.h.in (Glenn).
4418N/A Detect and fix attempt to write wrong iCCP profile length.
4418N/A
4418N/AVersion 1.4.0beta12 [October 19, 2006]
4418N/A Changed "logical" to "bitwise" in the documentation.
4418N/A Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
4418N/A Add a typecast to stifle compiler warning in pngrutil.c
4418N/A
4418N/AVersion 1.4.0beta13 [November 10, 2006]
4418N/A Fix potential buffer overflow in sPLT chunk handler.
4418N/A Fix Makefile.am to not try to link to noexistent files.
4418N/A
4418N/AVersion 1.4.0beta14 [November 15, 2006]
4418N/A Check all exported functions for NULL png_ptr.
4418N/A
4418N/AVersion 1.4.0beta15 [November 17, 2006]
4418N/A Relocated two misplaced tests for NULL png_ptr.
4418N/A Built Makefile.in with automake-1.9.6 instead of 1.9.2.
4418N/A Build configure with autoconf-2.60 instead of 2.59
4418N/A Add "install: all" in Makefile.am so "configure; make install" will work.
4418N/A
4418N/AVersion 1.4.0beta16 [November 17, 2006]
4418N/A Added a typecast in png_zalloc().
4418N/A
4418N/AVersion 1.4.0beta17 [December 4, 2006]
4418N/A Changed "new_key[79] = '\0';" to "(*new_key)[79] = '\0';" in pngwutil.c
4418N/A Add "png_bytep" typecast to profile while calculating length in pngwutil.c
4418N/A
4418N/AVersion 1.4.0beta18 [December 7, 2006]
4418N/A Added scripts/CMakeLists.txt
4418N/A
4418N/AVersion 1.4.0beta19 [May 16, 2007]
4418N/A Revised scripts/CMakeLists.txt
4418N/A Rebuilt configure and Makefile.in with newer tools.
4418N/A Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers.
4418N/A Added scripts/makefile.nommx
4418N/A
4418N/AVersion 1.4.0beta20 [July 9, 2008]
4418N/A Moved several PNG_HAVE_* macros from pngpriv.h to png.h because applications
4418N/A calling set_unknown_chunk_location() need them.
4418N/A Moved several macro definitions from pngpriv.h to pngconf.h
4418N/A Merge with changes to the 1.2.X branch, as of 1.2.30beta04.
4418N/A Deleted all use of the MMX assembler code and Intel-licensed optimizations.
4418N/A Revised makefile.mingw
4418N/A
4418N/AVersion 1.4.0beta21 [July 21, 2008]
4418N/A Moved local array "chunkdata" from pngrutil.c to the png_struct, so
4418N/A it will be freed by png_read_destroy() in case of a read error (Kurt
4418N/A Christensen).
4418N/A
4418N/AVersion 1.4.0beta22 [July 21, 2008]
4418N/A Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking.
4418N/A
4418N/AVersion 1.4.0beta23 [July 22, 2008]
4418N/A Change "chunkdata = NULL" to "png_ptr->chunkdata = NULL" several places in
4418N/A png_decompress_chunk().
4418N/A
4418N/AVersion 1.4.0beta24 [July 25, 2008]
4418N/A Change all remaining "chunkdata" to "png_ptr->chunkdata" in
4418N/A png_decompress_chunk(), and remove "chunkdata" from parameter list.
4418N/A Put a call to png_check_chunk_name() in png_read_chunk_header().
4418N/A Revised png_check_chunk_name() to reject a name with a lowercase 3rd byte.
4418N/A Removed two calls to png_check_chunk_name() occuring later in the process.
4418N/A Define PNG_NO_ERROR_NUMBERS by default in pngconf.h
4418N/A
4418N/AVersion 1.4.0beta25 [July 30, 2008]
4418N/A Added a call to png_check_chunk_name() in pngpread.c
4418N/A Reverted png_check_chunk_name() to accept a name with a lowercase 3rd byte.
4418N/A Added png_push_have_buffer() function to pngpread.c
4418N/A Eliminated PNG_BIG_ENDIAN_SUPPORTED and associated png_get_* macros.
4418N/A Made inline expansion of png_get_*() optional with PNG_USE_READ_MACROS.
4418N/A Eliminated all PNG_USELESS_TESTS and PNG_CORRECT_PALETTE_SUPPORTED code.
4418N/A Synced contrib directory and configure files with libpng-1.2.30beta06.
4418N/A Eliminated no-longer-used pngdefs.h (but it's still built in the makefiles)
4418N/A Relocated a misplaced "#endif /* PNG_NO_WRITE_FILTER */" in pngwutil.c
4418N/A
4418N/AVersion 1.4.0beta26 [August 4, 2008]
4418N/A Removed png_push_have_buffer() function in pngpread.c. It increased the
4418N/A compiled library size slightly.
4418N/A Changed "-Wall" to "-W -Wall" in the CFLAGS in all makefiles (Cosmin Truta)
4418N/A Declared png_ptr "volatile" in pngread.c and pngwrite.c to avoid warnings.
4418N/A Updated contrib/visupng/cexcept.h to version 2.0.1
4418N/A Added PNG_LITERAL_CHARACTER macros for #, [, and ].
4418N/A
4418N/AVersion 1.4.0beta27 [August 5, 2008]
4418N/A Revised usage of PNG_LITERAL_SHARP in pngerror.c.
4418N/A Moved newline character from individual png_debug messages into the
4418N/A png_debug macros.
4418N/A Allow user to #define their own png_debug, png_debug1, and png_debug2.
4418N/A
4418N/AVersion 1.4.0beta28 [August 5, 2008]
4418N/A Revised usage of PNG_LITERAL_SHARP in pngerror.c.
4418N/A Added PNG_STRING_NEWLINE macro
4418N/A
4418N/AVersion 1.4.0beta29 [August 9, 2008]
4418N/A Revised usage of PNG_STRING_NEWLINE to work on non-ISO compilers.
4418N/A Added PNG_STRING_COPYRIGHT macro.
4418N/A Added non-ISO versions of png_debug macros.
4418N/A
4418N/AVersion 1.4.0beta30 [August 14, 2008]
4418N/A Added premultiplied alpha feature (Volker Wiendl).
4418N/A
4418N/AVersion 1.4.0beta31 [August 18, 2008]
4418N/A Moved png_set_premultiply_alpha from pngtrans.c to pngrtran.c
4418N/A Removed extra crc check at the end of png_handle_cHRM(). Bug introduced
4418N/A in libpng-1.4.0beta20.
4418N/A
4418N/AVersion 1.4.0beta32 [August 19, 2008]
4418N/A Added PNG_WRITE_FLUSH_SUPPORTED block around new png_flush() call.
4418N/A Revised PNG_NO_STDIO version of png_write_flush()
4418N/A
4418N/AVersion 1.4.0beta33 [August 20, 2008]
4418N/A Added png_get|set_chunk_cache_max() to limit the total number of sPLT,
4418N/A text, and unknown chunks that can be stored.
4418N/A
4418N/AVersion 1.4.0beta34 [September 6, 2008]
4418N/A Shortened tIME_string to 29 bytes in pngtest.c
4418N/A Fixed off-by-one error introduced in png_push_read_zTXt() function in
4418N/A libpng-1.2.30beta04/pngpread.c (Harald van Dijk)
4418N/A
4418N/AVersion 1.4.0beta35 [October 6, 2008]
4418N/A Changed "trans_values" to "trans_color".
4418N/A Changed so-number from 0 to 14. Some OS do not like 0.
4418N/A Revised makefile.darwin to fix shared library numbering.
4418N/A Change png_set_gray_1_2_4_to_8() to png_set_expand_gray_1_2_4_to_8()
4418N/A in example.c (debian bug report)
4418N/A
4418N/AVersion 1.4.0beta36 [October 25, 2008]
4418N/A Sync with tEXt vulnerability fix in libpng-1.2.33rc02.
4418N/A
4418N/AVersion 1.4.0beta37 [November 13, 2008]
4418N/A Added png_check_cHRM in png.c and moved checking from pngget.c, pngrutil.c,
4418N/A and pngwrite.c
4418N/A
4418N/AVersion 1.4.0beta38 [November 22, 2008]
4418N/A Added check for zero-area RGB cHRM triangle in png_check_cHRM() and
4418N/A png_check_cHRM_fixed().
4418N/A
4418N/AVersion 1.4.0beta39 [November 23, 2008]
4418N/A Revised png_warning() to write its message on standard output by default
4418N/A when warning_fn is NULL.
4418N/A
4418N/AVersion 1.4.0beta40 [November 24, 2008]
4418N/A Eliminated png_check_cHRM(). Instead, always use png_check_cHRM_fixed().
4418N/A In png_check_cHRM_fixed(), ensure white_y is > 0, and removed redundant
4418N/A check for all-zero coordinates that is detected by the triangle check.
4418N/A
4418N/AVersion 1.4.0beta41 [November 26, 2008]
4418N/A Fixed string vs pointer-to-string error in png_check_keyword().
4418N/A Rearranged test expressions in png_check_cHRM_fixed() to avoid internal
4418N/A overflows.
4418N/A Added PNG_NO_CHECK_cHRM conditional.
4418N/A
4418N/AVersion 1.4.0beta42, 43 [December 1, 2008]
4418N/A Merge png_debug with version 1.2.34beta04.
4418N/A
4418N/AVersion 1.4.0beta44 [December 6, 2008]
4418N/A Removed redundant check for key==NULL before calling png_check_keyword()
4418N/A to ensure that new_key gets initialized and removed extra warning
4418N/A (Merge with version 1.2.34beta05 -- Arvan Pritchard).
4418N/A
4418N/AVersion 1.4.0beta45 [December 9, 2008]
4418N/A In png_write_png(), respect the placement of the filler bytes in an earlier
4418N/A call to png_set_filler() (Jim Barry).
4418N/A
4418N/AVersion 1.4.0beta46 [December 10, 2008]
4418N/A Undid previous change and added PNG_TRANSFORM_STRIP_FILLER_BEFORE and
4418N/A PNG_TRANSFORM_STRIP_FILLER_AFTER conditionals and deprecated
4418N/A PNG_TRANSFORM_STRIP_FILLER (Jim Barry).
4418N/A
4418N/AVersion 1.4.0beta47 [December 15, 2008]
4418N/A Support for dithering was disabled by default, because it has never
4418N/A been well tested and doesn't work very well. The code has not
4418N/A been removed, however, and can be enabled by building libpng with
4418N/A PNG_READ_DITHER_SUPPORTED defined.
4418N/A
4418N/AVersion 1.4.0beta48 [February 14, 2009]
4418N/A Added new exported function png_calloc().
4418N/A Combined several instances of png_malloc(); png_memset() into png_calloc().
4418N/A Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24
4418N/A but was never defined.
4418N/A
4418N/AVersion 1.4.0beta49 [February 28, 2009]
4418N/A Added png_fileno() macro to pngconf.h, used in pngwio.c
4418N/A Corrected order of #ifdef's in png_debug definition in png.h
4418N/A Fixed bug introduced in libpng-1.4.0beta48 with the memset arguments
4418N/A for pcal_params.
4418N/A Fixed order of #ifdef directives in the png_debug defines in png.h
4418N/A (bug introduced in libpng-1.2.34/1.4.0beta29).
4418N/A Revised comments in png_set_read_fn() and png_set_write_fn().
4418N/A
4418N/AVersion 1.4.0beta50 [March 18, 2009]
4418N/A Use png_calloc() instead of png_malloc() to allocate big_row_buf when
4418N/A reading an interlaced file, to avoid a possible UMR.
4418N/A Undid revision of PNG_NO_STDIO version of png_write_flush(). Users
4418N/A having trouble with fflush() can build with PNG_NO_WRITE_FLUSH defined
4418N/A or supply their own flush_fn() replacement.
4418N/A Revised libpng*.txt and png.h documentation about use of png_write_flush()
4418N/A and png_set_write_fn().
4418N/A Removed fflush() from pngtest.c.
4418N/A Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
4418N/A
4418N/AVersion 1.4.0beta51 [March 21, 2009]
4418N/A Removed new png_fileno() macro from pngconf.h .
4418N/A
4418N/AVersion 1.4.0beta52 [March 27, 2009]
4418N/A Relocated png_do_chop() ahead of building gamma tables in pngrtran.c
4418N/A This avoids building 16-bit gamma tables unnecessarily.
4418N/A Removed fflush() from pngtest.c.
4418N/A Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
4418N/A Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt
4418N/A
4418N/AVersion 1.4.0beta53 [April 1, 2009]
4418N/A Removed some remaining MMX macros from pngpriv.h
4418N/A Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
4418N/A
4418N/AVersion 1.4.0beta54 [April 13, 2009]
4418N/A Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
4418N/A application code writers to bypass the check for multiple inclusion
4418N/A of setjmp.h when they know that it is safe to ignore the situation.
4418N/A Eliminated internal use of setjmp() in pngread.c and pngwrite.c
4418N/A Reordered ancillary chunks in pngtest.png to be the same as what
4418N/A pngtest now produces, and made some cosmetic changes to pngtest output.
4418N/A Eliminated deprecated png_read_init_3() and png_write_init_3() functions.
4418N/A
4418N/AVersion 1.4.0beta55 [April 15, 2009]
4418N/A Simplified error handling in pngread.c and pngwrite.c by putting
4418N/A the new png_read_cleanup() and png_write_cleanup() functions inline.
4418N/A
4418N/AVersion 1.4.0beta56 [April 25, 2009]
4418N/A Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress
4418N/A "shadowed declaration" warning from gcc-4.3.3.
4418N/A Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration"
4418N/A warning about a global "gamma" variable in math.h on some platforms.
4418N/A
4418N/AVersion 1.4.0beta57 [May 2, 2009]
4418N/A Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24
4418N/A but was never defined (again).
4418N/A Rebuilt configure scripts with autoconf-2.63 instead of 2.62
4418N/A Removed pngprefs.h and MMX from makefiles
4418N/A
4418N/AVersion 1.4.0beta58 [May 14, 2009]
4418N/A Changed pngw32.def to pngwin.def in makefile.mingw (typo was introduced
4418N/A in beta57).
4418N/A Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)
4418N/A
4418N/AVersion 1.4.0beta59 [May 15, 2009]
4418N/A Reformated sources in libpng style (3-space intentation, comment format)
4418N/A Fixed typo in libpng docs (PNG_FILTER_AVE should be PNG_FILTER_AVG)
4418N/A Added sections about the git repository and our coding style to the
4418N/A documentation
4418N/A Relocated misplaced #endif in pngwrite.c, sCAL chunk handler.
4418N/A
4418N/AVersion 1.4.0beta60 [May 19, 2009]
4418N/A Conditionally compile png_read_finish_row() which is not used by
4418N/A progressive readers.
4418N/A Added contrib/pngminim/preader to demonstrate building minimal progressive
4418N/A decoder, based on contrib/gregbook with embedded libpng and zlib.
4418N/A
4418N/AVersion 1.4.0beta61 [May 20, 2009]
4418N/A In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there
4418N/A is only one makefile in those directories, and revised the README files
4418N/A accordingly.
4418N/A More reformatting of comments, mostly to capitalize sentences.
4418N/A
4418N/AVersion 1.4.0beta62 [June 2, 2009]
4418N/A Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h
4418N/A and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h
4418N/A Reformatted several remaining "else statement" into two lines.
4418N/A Added a section to the libpng documentation about using png_get_io_ptr()
4418N/A in configure scripts to detect the presence of libpng.
4418N/A
4418N/AVersion 1.4.0beta63 [June 15, 2009]
4418N/A Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR()
4418N/A multiple times and to specify the sample order in the tRNS chunk,
4418N/A because the ISO PNG specification has a typo in the tRNS table.
4418N/A Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to
4418N/A PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism
4418N/A available for ignoring known chunks even when not saving unknown chunks.
4418N/A Adopted preference for consistent use of "#ifdef" and "#ifndef" versus
4418N/A "#if defined()" and "if !defined()" where possible.
4418N/A
4418N/AVersion 1.4.0beta64 [June 24, 2009]
4418N/A Eliminated PNG_LEGACY_SUPPORTED code.
4418N/A Moved the various unknown chunk macro definitions outside of the
4418N/A PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
4418N/A
4418N/AVersion 1.4.0beta65 [June 26, 2009]
4418N/A Added a reference to the libpng license in each file.
4418N/A
4418N/AVersion 1.4.0beta66 [June 27, 2009]
4418N/A Refer to the libpng license instead of the libpng license in each file.
4418N/A
4418N/AVersion 1.4.0beta67 [July 6, 2009]
4418N/A Relocated INVERT_ALPHA within png_read_png() and png_write_png().
4418N/A Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB.
4418N/A Added an "xcode" project to the projects directory (Alam Arias).
4418N/A
4418N/AVersion 1.4.0beta68 [July 19, 2009]
4418N/A Avoid some tests in filter selection in pngwutil.c
4418N/A
4418N/AVersion 1.4.0beta69 [July 25, 2009]
4418N/A Simplified the new filter-selection test. This runs faster in the
4418N/A common "PNG_ALL_FILTERS" and PNG_FILTER_NONE cases.
4418N/A Removed extraneous declaration from the new call to png_read_gray_to_rgb()
4418N/A (bug introduced in libpng-1.4.0beta67).
4418N/A Fixed up xcode project (Alam Arias)
4418N/A Added a prototype for png_64bit_product() in png.c
4418N/A
4418N/AVersion 1.4.0beta70 [July 27, 2009]
4418N/A Avoid a possible NULL dereference in debug build, in png_set_text_2().
4418N/A (bug introduced in libpng-0.95, discovered by Evan Rouault)
4418N/A
4418N/AVersion 1.4.0beta71 [July 29, 2009]
4418N/A Rebuilt configure scripts with autoconf-2.64.
4418N/A
4418N/AVersion 1.4.0beta72 [August 1, 2009]
4418N/A Replaced *.tar.lzma with *.tar.xz in distribution. Get the xz codec
4418N/A from <http://tukaani.org/xz>.
4418N/A
4418N/AVersion 1.4.0beta73 [August 1, 2009]
4418N/A Reject attempt to write iCCP chunk with negative embedded profile length
4418N/A (JD Chen)
4418N/A
4418N/AVersion 1.4.0beta74 [August 8, 2009]
4418N/A Changed png_ptr and info_ptr member "trans" to "trans_alpha".
4418N/A
4418N/AVersion 1.4.0beta75 [August 21, 2009]
4418N/A Removed an extra png_debug() recently added to png_write_find_filter().
4418N/A Fixed incorrect #ifdef in pngset.c regarding unknown chunk support.
4418N/A
4418N/AVersion 1.4.0beta76 [August 22, 2009]
4418N/A Moved an incorrectly located test in png_read_row() in pngread.c
4418N/A
4418N/AVersion 1.4.0beta77 [August 27, 2009]
4418N/A Removed lpXYZ.tar.bz2 (with CRLF), KNOWNBUG, libpng-x.y.z-KNOWNBUG.txt,
4418N/A and the "noconfig" files from the distribution.
4418N/A Moved CMakeLists.txt from scripts into the main libpng directory.
4418N/A Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
4418N/A
4418N/AVersion 1.4.0beta78 [August 31, 2009]
4418N/A Converted all PNG_NO_* tests to PNG_*_SUPPORTED everywhere except pngconf.h
4418N/A Eliminated PNG_NO_FREE_ME and PNG_FREE_ME_SUPPORTED macros.
4418N/A Use png_malloc plus a loop instead of png_calloc() to initialize
4418N/A row_pointers in png_read_png().
4418N/A
4418N/AVersion 1.4.0beta79 [September 1, 2009]
4418N/A Eliminated PNG_GLOBAL_ARRAYS and PNG_LOCAL_ARRAYS; always use local arrays.
4418N/A Eliminated PNG_CALLOC_SUPPORTED macro and always provide png_calloc().
4418N/A
4418N/AVersion 1.4.0beta80 [September 17, 2009]
4418N/A Removed scripts/libpng.icc
4418N/A Changed typecast of filler from png_byte to png_uint_16 in png_set_filler().
4418N/A (Dennis Gustafsson)
4418N/A Fixed typo introduced in beta78 in pngtest.c ("#if def " should be "#ifdef ")
4418N/A
4418N/AVersion 1.4.0beta81 [September 23, 2009]
4418N/A Eliminated unused PNG_FLAG_FREE_* defines from pngpriv.h
4418N/A Expanded TAB characters in pngrtran.c
4418N/A Removed PNG_CONST from all "PNG_CONST PNG_CHNK" declarations to avoid
4418N/A compiler complaints about doubly declaring things "const".
4418N/A Changed all "#if [!]defined(X)" to "if[n]def X" where possible.
4418N/A Eliminated unused png_ptr->row_buf_size
4418N/A
4418N/AVersion 1.4.0beta82 [September 25, 2009]
4418N/A Moved redundant IHDR checking into new png_check_IHDR() in png.c
4418N/A and report all errors found in the IHDR data.
4418N/A Eliminated useless call to png_check_cHRM() from pngset.c
4418N/A
4418N/AVersion 1.4.0beta83 [September 25, 2009]
4418N/A Revised png_check_IHDR() to eliminate bogus complaint about filter_type.
4418N/A
4418N/AVersion 1.4.0beta84 [September 30, 2009]
4418N/A Fixed some inconsistent indentation in pngconf.h
4418N/A Revised png_check_IHDR() to add a test for width variable less than 32-bit.
4418N/A
4418N/AVersion 1.4.0beta85 [October 1, 2009]
4418N/A Revised png_check_IHDR() again, to check info_ptr members instead of
4418N/A the contents of the returned parameters.
4418N/A
4418N/AVersion 1.4.0beta86 [October 9, 2009]
4418N/A Updated the "xcode" project (Alam Arias).
4418N/A Eliminated a shadowed declaration of "pp" in png_handle_sPLT().
4418N/A
4418N/AVersion 1.4.0rc01 [October 19, 2009]
4418N/A Trivial cosmetic changes.
4418N/A
4418N/AVersion 1.4.0beta87 [October 30, 2009]
4418N/A Moved version 1.4.0 back into beta.
4418N/A
4418N/AVersion 1.4.0beta88 [October 30, 2009]
4418N/A Revised libpng*.txt section about differences between 1.2.x and 1.4.0
4418N/A because most of the new features have now been ported back to 1.2.41
4418N/A
4418N/AVersion 1.4.0beta89 [November 1, 2009]
4418N/A More bugfixes and improvements to CMakeLists.txt (Philip Lowman)
4418N/A Removed a harmless extra png_set_invert_alpha() from pngwrite.c
4418N/A Apply png_user_chunk_cache_max within png_decompress_chunk().
4418N/A Merged libpng-1.2.41.txt with libpng-1.4.0.txt where appropriate.
4418N/A
4418N/AVersion 1.4.0beta90 [November 2, 2009]
4418N/A Removed all remaining WIN32_WCE #ifdefs except those involving the
4418N/A time.h "tm" structure
4418N/A
4418N/AVersion 1.4.0beta91 [November 3, 2009]
4418N/A Updated scripts/pngw32.def and projects/wince/png32ce.def
4418N/A Copied projects/wince/png32ce.def to the scripts directory.
4418N/A Added scripts/makefile.wce
4418N/A Patched ltmain.sh for wince support.
4418N/A Added PNG_CONVERT_tIME_SUPPORTED macro.
4418N/A
4418N/AVersion 1.4.0beta92 [November 4, 2009]
4418N/A Make inclusion of time.h in pngconf.h depend on PNG_CONVERT_tIME_SUPPORTED
4418N/A Make #define PNG_CONVERT_tIME_SUPPORTED depend on PNG_WRITE_tIME_SUPPORTED
4418N/A Revised libpng*.txt to describe differences from 1.2.40 to 1.4.0 (instead
4418N/A of differences from 1.2.41 to 1.4.0)
4418N/A
4418N/AVersion 1.4.0beta93 [November 7, 2009]
4418N/A Added PNG_DEPSTRUCT, PNG_DEPRECATED, PNG_USE_RESULT, PNG_NORETURN, and
4418N/A PNG_ALLOCATED macros to detect deprecated direct access to the
4418N/A png_struct or info_struct members and other deprecated usage in
4418N/A applications (John Bowler).
4418N/A Updated scripts/makefile* to add "-DPNG_CONFIGURE_LIBPNG" to CFLAGS,
4418N/A to prevent warnings about direct access to png structs by libpng
4418N/A functions while building libpng. They need to be tested, especially
4418N/A those using compilers other than gcc.
4418N/A Updated projects/visualc6 and visualc71 with "/d PNG_CONFIGURE_LIBPNG".
4418N/A They should work but still need to be updated to remove
4418N/A references to pnggccrd.c or pngvcrd.c and ASM building.
4418N/A Added README.txt to the beos, cbuilder5, netware, and xcode projects warning
4418N/A that they need to be updated, to remove references to pnggccrd.c and
4418N/A pngvcrd.c and to depend on pngpriv.h
4418N/A Removed three direct references to read_info_ptr members in pngtest.c
4418N/A that were detected by the new PNG_DEPSTRUCT macro.
4418N/A Moved the png_debug macro definitions and the png_read_destroy(),
4418N/A png_write_destroy() and png_far_to_near() prototypes from png.h
4418N/A to pngpriv.h (John Bowler)
4418N/A Moved the synopsis lines for png_read_destroy(), png_write_destroy()
4418N/A png_debug(), png_debug1(), and png_debug2() from libpng.3 to libpngpf.3.
4418N/A
4418N/AVersion 1.4.0beta94 [November 9, 2009]
4418N/A Removed the obsolete, unused pnggccrd.c and pngvcrd.c files.
4418N/A Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions.
4418N/A Removed dependency of pngtest.o on pngpriv.h in the makefiles.
4418N/A Only #define PNG_DEPSTRUCT, etc. in pngconf.h if not already defined.
4418N/A
4418N/AVersion 1.4.0beta95 [November 10, 2009]
4418N/A Changed png_check_sig() to !png_sig_cmp() in contrib programs.
4418N/A Added -DPNG_CONFIGURE_LIBPNG to contrib/pngminm/*/makefile
4418N/A Changed png_check_sig() to !png_sig_cmp() in contrib programs.
4418N/A Corrected the png_get_IHDR() call in contrib/gregbook/readpng2.c
4418N/A Changed pngminim/*/gather.sh to stop trying to remove pnggccrd.c and pngvcrd.c
4418N/A Added dependency on pngpriv.h in contrib/pngminim/*/makefile
4418N/A
4418N/AVersion 1.4.0beta96 [November 12, 2009]
4418N/A Renamed scripts/makefile.wce to scripts/makefile.cegcc
4418N/A Revised Makefile.am to use libpng.sys while building libpng.so
4418N/A so that only PNG_EXPORT functions are exported.
4418N/A Removed the deprecated png_check_sig() function/macro.
4418N/A Removed recently removed function names from scripts/*.def
4418N/A Revised pngtest.png to put chunks in the same order written by pngtest
4418N/A (evidently the same change made in libpng-1.0beta54 was lost).
4418N/A Added PNG_PRIVATE macro definition in pngconf.h for possible future use.
4418N/A
4418N/AVersion 1.4.0beta97 [November 13, 2009]
4418N/A Restored pngtest.png to the libpng-1.4.0beta7 version.
4418N/A Removed projects/beos and netware.txt; no one seems to be supporting them.
4418N/A Revised Makefile.in
4418N/A
4418N/AVersion 1.4.0beta98 [November 13, 2009]
4418N/A Added the "xcode" project to zip distributions,
4418N/A Fixed a typo in scripts/pngwin.def introduced in beta97.
4418N/A
4418N/AVersion 1.4.0beta99 [November 14, 2009]
4418N/A Moved libpng-config.in and libpng.pc-configure.in out of the scripts
4418N/A directory, to libpng-config.in and libpng-pc.in, respectively, and
4418N/A modified Makefile.am and configure.ac accordingly. Now "configure"
4418N/A needs nothing from the "scripts" directory.
4418N/A Avoid redefining PNG_CONST in pngconf.h
4418N/A
4418N/AVersion 1.4.0beta100 [November 14, 2009]
4418N/A Removed ASM builds from projects/visualc6 and projects/visualc71
4418N/A Removed scripts/makefile.nommx and makefile.vcawin32
4418N/A Revised CMakeLists.txt to account for new location of libpng-config.in
4418N/A and libpng-pc.in
4418N/A Updated INSTALL to reflect removal and relocation of files.
4418N/A
4418N/AVersion 1.4.0beta101 [November 14, 2009]
4418N/A Restored the binary files (*.jpg, *.png, some project files) that were
4418N/A accidentally deleted from the zip and 7z distributions when the xcode
4418N/A project was added.
4418N/A
4418N/AVersion 1.4.0beta102 [November 18, 2009]
4418N/A Added libpng-config.in and libpng-pc.in to the zip and 7z distributions.
4418N/A Fixed a typo in projects/visualc6/pngtest.dsp, introduced in beta100.
4418N/A Moved descriptions of makefiles and other scripts out of INSTALL into
4418N/A scripts/README.txt
4418N/A Updated the copyright year in scripts/pngwin.rc from 2006 to 2009.
4418N/A
4418N/AVersion 1.4.0beta103 [November 21, 2009]
4418N/A Removed obsolete comments about ASM from projects/visualc71/README_zlib.txt
4418N/A Align row_buf on 16-byte boundary in memory.
4418N/A Restored the PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED guard around the call
4418N/A to png_flush() after png_write_IEND(). See 1.4.0beta32, 1.4.0beta50
4418N/A changes above and 1.2.30, 1.2.30rc01 and rc03 in 1.2.41 CHANGES. Someone
4418N/A needs this feature.
4418N/A Make the 'png_jmpbuf' macro expand to a call that records the correct
4418N/A longjmp function as well as returning a pointer to the setjmp
4418N/A jmp_buf buffer, and marked direct access to jmpbuf 'deprecated'.
4418N/A (John Bowler)
4418N/A
4418N/AVersion 1.4.0beta104 [November 22, 2009]
4418N/A Removed png_longjmp_ptr from scripts/*.def and libpng.3
4418N/A Rebuilt configure scripts with autoconf-2.65
4418N/A
4418N/AVersion 1.4.0beta105 [November 25, 2009]
4418N/A Use fast integer PNG_DIVIDE_BY_255() or PNG_DIVIDE_BY_65535()
4418N/A to accomplish alpha premultiplication when
4418N/A PNG_READ_COMPOSITE_NODIV_SUPPORTED is defined.
4418N/A Changed "/255" to "/255.0" in background calculations to make it clear
4418N/A that the 255 is used as a double.
4418N/A
4418N/AVersion 1.4.0beta106 [November 27, 2009]
4418N/A Removed premultiplied alpha feature.
4418N/A
4418N/AVersion 1.4.0beta107 [December 4, 2009]
4418N/A Updated README
4418N/A Added "#define PNG_NO_PEDANTIC_WARNINGS" in the libpng source files.
4418N/A Removed "-DPNG_CONFIGURE_LIBPNG" from the makefiles and projects.
4418N/A Revised scripts/makefile.netbsd, makefile.openbsd, and makefile.sco
4418N/A to put png.h and pngconf.h in $prefix/include, like the other scripts,
4418N/A instead of in $prefix/include/libpng. Also revised makefile.sco
4418N/A to put them in $prefix/include/libpng15 instead of in
4418N/A $prefix/include/libpng/libpng15.
4418N/A
4418N/AVersion 1.4.0beta108 [December 11, 2009]
4418N/A Removed leftover "-DPNG_CONFIGURE_LIBPNG" from contrib/pngminim/*/makefile
4418N/A Relocated png_do_chop() to its original position in pngrtran.c; the
4418N/A change in version 1.2.41beta08 caused transparency to be handled wrong
4418N/A in some 16-bit datastreams (Yusaku Sugai).
4418N/A
4418N/AVersion 1.4.0beta109 [December 13, 2009]
4418N/A Added "bit_depth" parameter to the private png_build_gamma_table() function.
4418N/A Pass bit_depth=8 to png_build_gamma_table() when bit_depth is 16 but the
4418N/A PNG_16_TO_8 transform has been set, to avoid unnecessary build of 16-bit
4418N/A tables.
4418N/A
4418N/AVersion 1.4.0rc02 [December 20, 2009]
4418N/A Declared png_cleanup_needed "volatile" in pngread.c and pngwrite.c
4418N/A
4418N/AVersion 1.4.0rc03 [December 22, 2009]
4418N/A Renamed libpng-pc.in back to libpng.pc.in and revised CMakeLists.txt
4418N/A (revising the change in 1.4.0beta99)
4418N/A
4418N/AVersion 1.4.0rc04 [December 25, 2009]
4418N/A Swapped PNG_UNKNOWN_CHUNKS_SUPPORTED and PNG_HANDLE_AS_UNKNOWN_SUPPORTED
4418N/A in pngset.c to be consistent with other changes in version 1.2.38.
4418N/A
4418N/AVersion 1.4.0rc05 [December 25, 2009]
4418N/A Changed "libpng-pc.in" to "libpng.pc.in" in configure.ac, configure, and
4418N/A Makefile.in to be consistent with changes in libpng-1.4.0rc03
4418N/A
4418N/AVersion 1.4.0rc06 [December 29, 2009]
4418N/A Reverted the gamma_table changes from libpng-1.4.0beta109.
4418N/A Fixed some indentation errors.
4418N/A
4418N/AVersion 1.4.0rc07 [January 1, 2010]
4418N/A Revised libpng*.txt and libpng.3 about 1.2.x->1.4.x differences.
4418N/A Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c
4418N/A Update copyright year to 2010.
4418N/A
4418N/AVersion 1.4.0rc08 [January 2, 2010]
4418N/A Avoid deprecated references to png_ptr-io_ptr and png_ptr->error_ptr
4418N/A in pngtest.c
4418N/A
4418N/AVersion 1.4.0 [January 3, 2010]
4418N/A No changes.
4418N/A
4418N/AVersion 1.4.1beta01 [January 8, 2010]
4418N/A Updated CMakeLists.txt for consistent indentation and to avoid an
4418N/A unclosed if-statement warning (Philip Lowman).
4418N/A Revised Makefile.am and Makefile.in to remove references to Y2KINFO,
4418N/A KNOWNBUG, and libpng.la (Robert Schwebel).
4418N/A Revised the makefiles to install the same files and symbolic
4418N/A links as configure, except for libpng.la and libpng14.la.
4418N/A Make png_set|get_compression_buffer_size() available even when
4418N/A PNG_WRITE_SUPPORTED is not enabled.
4418N/A Revised Makefile.am and Makefile.in to simplify their maintenance.
4418N/A Revised scripts/makefile.linux to install a link to libpng14.so.14.1
4418N/A
4418N/AVersion 1.4.1beta02 [January 9, 2010]
4418N/A Revised the rest of the makefiles to install a link to libpng14.so.14.1
4418N/A
4418N/AVersion 1.4.1beta03 [January 10, 2010]
4418N/A Removed png_set_premultiply_alpha() from scripts/*.def
4418N/A
4418N/AVersion 1.4.1rc01 [January 16, 2010]
4418N/A No changes.
4418N/A
4418N/AVersion 1.4.1beta04 [January 23, 2010]
4418N/A Revised png_decompress_chunk() to improve speed and memory usage when
4418N/A decoding large chunks.
4418N/A Added png_set|get_chunk_malloc_max() functions.
4418N/A
4418N/AVersion 1.4.1beta05 [January 26, 2010]
4418N/A Relocated "int k" declaration in pngtest.c to minimize its scope.
4418N/A
4418N/AVersion 1.4.1beta06 [January 28, 2010]
4418N/A Revised png_decompress_chunk() to use a two-pass method suggested by
4418N/A John Bowler.
4418N/A
4418N/AVersion 1.4.1beta07 [February 6, 2010]
4418N/A Folded some long lines in the source files.
4418N/A Added defineable PNG_USER_CHUNK_CACHE_MAX, PNG_USER_CHUNK_MALLOC_MAX,
4418N/A and a PNG_USER_LIMITS_SUPPORTED flag.
4418N/A Eliminated use of png_ptr->irowbytes and reused the slot in png_ptr as
4418N/A png_ptr->png_user_chunk_malloc_max.
4418N/A Revised png_push_save_buffer() to do fewer but larger png_malloc() calls.
4418N/A
4418N/AVersion 1.4.1beta08 [February 6, 2010]
4418N/A Minor cleanup and updating of dates and copyright year.
4418N/A
4418N/AVersion 1.5.0beta01 [February 7, 2010]
4418N/A Moved declaration of png_struct into private pngstruct.h and png_info
4418N/A into pnginfo.h
4418N/A
4418N/AVersion 1.4.1beta09 and 1.5.0beta02 [February 7, 2010]
4418N/A Reverted to original png_push_save_buffer() code.
4418N/A
4418N/AVersion 1.4.1beta10 and 1.5.0beta03 [February 8, 2010]
4418N/A Return allocated "old_buffer" in png_push_save_buffer() before
4418N/A calling png_error(), to avoid a potential memory leak.
4418N/A Updated configure script to use SO number 15.
4418N/A
4418N/AVersion 1.5.0beta04 [February 9, 2010]
4418N/A Removed malformed "incomplete struct declaration" of png_info from png.h
4418N/A
4418N/AVersion 1.5.0beta05 [February 12, 2010]
4418N/A Removed PNG_DEPSTRUCT markup in pngstruct.h and pnginfo.h, and undid the
4418N/A linewrapping that it entailed.
4418N/A Revised comments in pngstruct.h and pnginfo.h and added pointers to
4418N/A the libpng license.
4418N/A Changed PNG_INTERNAL to PNG_EXPOSE_INTERNAL_STRUCTURES
4418N/A Removed the cbuilder5 project, which has not been updated to 1.4.0.
4418N/A
4418N/AVersion 1.4.1beta12 and 1.5.0beta06 [February 14, 2010]
4418N/A Fixed type declaration of png_get_chunk_malloc_max() in pngget.c (Daisuke
4418N/A Nishikawa)
4418N/A
4418N/AVersion 1.5.0beta07 [omitted]
4418N/A
4418N/AVersion 1.5.0beta08 [February 19, 2010]
4418N/A Changed #ifdef PNG_NO_STDIO_SUPPORTED to #ifdef PNG_NO_CONSOLE_IO_SUPPORTED
4418N/A wherever png_snprintf() is used to construct error and warning messages.
4418N/A Noted in scripts/makefile.mingw that it expects to be run under MSYS.
4418N/A Removed obsolete unused MMX-querying support from contrib/gregbook
4418N/A Added exported png_longjmp() function.
4418N/A Removed the AIX redefinition of jmpbuf in png.h
4418N/A Added -D_ALLSOURCE in configure.ac, makefile.aix, and CMakeLists.txt
4418N/A when building on AIX.
4418N/A
4418N/AVersion 1.5.0beta09 [February 19, 2010]
4418N/A Removed -D_ALLSOURCE from configure.ac, makefile.aix, and CMakeLists.txt.
4418N/A Changed the name of png_ptr->jmpbuf to png_ptr->png_jmpbuf in pngstruct.h
4418N/A
4418N/AVersion 1.5.0beta10 [February 25, 2010]
4418N/A Removed unused gzio.c from contrib/pngminim gather and makefile scripts
4418N/A Removed replacement error handlers from contrib/gregbook. Because of
4418N/A the new png_longjmp() function they are no longer needed.
4418N/A
4418N/AVersion 1.5.0beta11 [March 6, 2010]
4418N/A Removed checking for already-included setjmp.h from pngconf.h
4418N/A Fixed inconsistent indentations and made numerous cosmetic changes.
4418N/A Revised the "SEE ALSO" style of libpng.3, libpngpf.3, and png.5
4418N/A
4418N/AVersion 1.5.0beta12 [March 9, 2010]
4418N/A Moved "#include png.h" inside pngpriv.h and removed "#include png.h" from
4418N/A the source files, along with "#define PNG_EXPOSE_INTERNAL_STRUCTURES"
4418N/A and "#define PNG_NO_PEDANTIC_WARNINGS" (John Bowler).
4418N/A Created new pngdebug.h and moved debug definitions there.
4418N/A
4418N/AVersion 1.5.0beta13 [March 10, 2010]
4418N/A Protect pngstruct.h, pnginfo.h, and pngdebug.h from being included twice.
4418N/A Revise the "#ifdef" blocks in png_inflate() so it will compile when neither
4418N/A PNG_USER_CHUNK_MALLOC_MAX nor PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
4418N/A is defined.
4418N/A Removed unused png_measure_compressed_chunk() from pngpriv.h and libpngpf.3
4418N/A Moved the 'config.h' support from pngconf.h to pngpriv.h
4418N/A Removed PNGAPI from the png_longjmp_ptr typedef.
4418N/A Eliminated dependence of pngtest.c on the private pngdebug.h file.
4418N/A Make all png_debug macros into *unterminated* statements or
4418N/A expressions (i.e. a trailing ';' must always be added) and correct
4418N/A the format statements in various png_debug messages.
4418N/A
4418N/AVersion 1.5.0beta14 [March 14, 2010]
4418N/A Removed direct access to png_ptr->io_ptr from the Windows code in pngtest.c
4418N/A Revised Makefile.am to account for recent additions and replacements.
4418N/A Corrected CE and OS/2 DEF files (scripts/png*def) for symbols removed and
4418N/A added ordinal numbers to the Windows DEF file and corrected the duplicated
4418N/A ordinal numbers on CE symbols that are commented out.
4418N/A Added back in export symbols that can be present in the Windows build but
4418N/A are disabled by default.
4418N/A PNG_EXPORT changed to include an 'ordinal' field for DEF file generation.
4418N/A PNG_CALLBACK added to make callback definitions uniform. PNGAPI split
4418N/A into PNGCAPI (base C form), PNGAPI (exports) and PNGCBAPI (callbacks),
4418N/A and appropriate changes made to all files. Cygwin builds re-hinged to
4418N/A allow procedure call standard changes and to remove the need for the DEF
4418N/A file (fixes build on Cygwin).
4418N/A Enabled 'attribute' warnings that are relevant to library APIs and callbacks.
4418N/A Changed rules for generation of the various symbol files and added a new
4418N/A rule for a DEF file (which is also added to the distribution).
4418N/A Updated the symbol file generation to stop it adding spurious spaces
4418N/A to EOL (coming from preprocessor macro expansion). Added a facility
4418N/A to join tokens in the output and rewrite *.dfn to use this.
4418N/A Eliminated scripts/*.def in favor of libpng.def; updated projects/visualc71
4418N/A and removed scripts/makefile.cygwin.
4418N/A Made PNG_BUILD_DLL safe: it can be set whenever a DLL is being built.
4418N/A Removed the include of sys/types.h - apparently unnecessary now on the
4418N/A platforms on which it happened (all but Mac OS and RISC OS).
4418N/A Moved the Mac OS test into pngpriv.h (the only place it is used.)
4418N/A
4418N/AVersion 1.5.0beta15 [March 17, 2010]
4418N/A Added symbols.chk target to Makefile.am to validate the symbols in png.h
4418N/A against the new DEF file scripts/symbols.def.
4418N/A Changed the default DEF file back to pngwin.def.
4418N/A Removed makefile.mingw.
4418N/A Eliminated PNG_NO_EXTERN and PNG_ALL_EXTERN
4418N/A
4418N/AVersion 1.5.0beta16 [April 1, 2010]
4418N/A Make png_text_struct independent of PNG_iTXt_SUPPORTED, so that
4418N/A fields are initialized in all configurations. The READ/WRITE
4418N/A macros (PNG_(READ|WRITE)_iTXt_SUPPORTED) still function as
4418N/A before to disable code to actually read or write iTXt chunks
4418N/A and iTXt_SUPPORTED can be used to detect presence of either
4418N/A read or write support (but it is probably better to check for
4418N/A the one actually required - read or write.)
4418N/A Combined multiple png_warning() calls for a single error.
4418N/A Restored the macro definition of png_check_sig().
4418N/A
4418N/AVersion 1.5.0beta17 [April 17, 2010]
4418N/A Added some "(long)" typecasts to printf calls in png_handle_cHRM().
4418N/A Documented the fact that png_set_dither() was disabled since libpng-1.4.0.
4418N/A Reenabled png_set_dither() but renamed it to png_set_quantize() to reflect
4418N/A more accurately what it actually does. At the same time, renamed
4418N/A the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros to
4418N/A PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS.
4418N/A Added some "(long)" typecasts to printf calls in png_handle_cHRM().
4418N/A Freeze build-time only configuration in the build.
4418N/A In all prior versions of libpng most configuration options
4418N/A controlled by compiler #defines had to be repeated by the
4418N/A application code that used libpng. This patch changes this
4418N/A so that compilation options that can only be changed at build
4418N/A time are frozen in the build. Options that are compiler
4418N/A dependent (and those that are system dependent) are evaluated
4418N/A each time - pngconf.h holds these. Options that can be changed
4418N/A per-file in the application are in png.h. Frozen options are
4418N/A in the new installed header file pnglibconf.h (John Bowler)
4418N/A Removed the xcode project because it has not been updated to work
4418N/A with libpng-1.5.0.
4418N/A Removed the ability to include optional pngusr.h
4418N/A
4418N/AVersion 1.5.0beta18 [April 17, 2010]
4418N/A Restored the ability to include optional pngusr.h
4418N/A Moved replacements for png_error() and png_warning() from the
4418N/A contrib/pngminim project to pngerror.c, for use when warnings or
4418N/A errors are disabled via PNG_NO_WARN or PNG_NO_ERROR_TEXT, to avoid
4418N/A storing unneeded error/warning text.
4418N/A Updated contrib/pngminim project to work with the new pnglibconf.h
4418N/A Added some PNG_NO_* defines to contrib/pngminim/*/pngusr.h to save space.
4418N/A
4418N/AVersion 1.5.0beta19 [April 24, 2010]
4418N/A Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the functions
4418N/A to read and write ints to be disabled independently of PNG_USE_READ_MACROS,
4418N/A which allows libpng to be built with the functions even though the default
4418N/A is to use the macros - this allows applications to choose at app build
4418N/A time whether or not to use macros (previously impossible because the
4418N/A functions weren't in the default build.)
4418N/A Changed Windows calling convention back to __cdecl for API functions.
4418N/A For Windows/x86 platforms only:
4418N/A __stdcall is no longer needed for Visual Basic, so libpng-1.5.0 uses
4418N/A __cdecl throughout (both API functions and callbacks) on Windows/x86
4418N/A platforms.
4418N/A Replaced visualc6 and visualc71 projects with new vstudio project
4418N/A Relaxed the overly-restrictive permissions of some files.
4418N/A
4418N/AVersion 1.5.0beta20 [April 24, 2010]
4418N/A Relaxed more overly-restrictive permissions of some files.
4418N/A
4418N/AVersion 1.5.0beta21 [April 27, 2010]
4418N/A Removed some unwanted binary bytes and changed CRLF to NEWLINE in the new
4418N/A vstudio project files, and some trivial editing of some files in the
4418N/A scripts directory.
4418N/A Set PNG_NO_READ_BGR, PNG_NO_IO_STATE, and PNG_NO_TIME_RFC1123 in
4418N/A contrib/pngminim/decoder/pngusr.h to make a smaller decoder application.
4418N/A
4418N/AVersion 1.5.0beta22 [April 28, 2010]
4418N/A Fixed dependencies of GET_INT_32 - it does not require READ_INT_FUNCTIONS
4418N/A because it has a macro equivalent.
4418N/A Improved the options.awk script; added an "everything off" option.
4418N/A Revised contrib/pngminim to use the "everything off" option in pngusr.dfa.
4418N/A
4418N/AVersion 1.5.0beta23 [April 29, 2010]
4418N/A Corrected PNG_REMOVED macro to take five arguments.
4418N/A The macro was documented with two arguments (name,ordinal), however
4418N/A the symbol checking .dfn files assumed five arguments. The five
4418N/A argument form seems more useful so it is changed to that.
4418N/A Corrected PNG_UNKNOWN_CHUNKS_SUPPORTED to PNG_HANDLE_AS_UNKNOWN_SUPPORTED
4418N/A in gregbook/readpng2.c
4418N/A Corrected protection of png_get_user_transform_ptr. The API declaration in
4418N/A png.h is removed if both READ and WRITE USER_TRANSFORM are turned off
4418N/A but was left defined in pngtrans.c
4418N/A Added logunsupported=1 to cause pnglibconf.h to document disabled options.
4418N/A This makes the installed pnglibconf.h more readable but causes no
4418N/A other change. The intention is that users of libpng will find it
4418N/A easier to understand if an API they need is missing.
4418N/A Include png_reset_zstream() in png.c only when PNG_READ_SUPPORTED is defined.
4418N/A Removed dummy_inflate.c from contrib/pngminim/encoder
4418N/A Removed contrib/pngminim/*/gather.sh; gathering is now done in the makefile.
4418N/A
4418N/AVersion 1.5.0beta24 [May 7, 2010]
4418N/A Use bitwise "&" instead of arithmetic mod in pngrutil.c calculation of the
4418N/A offset of the png_ptr->rowbuf pointer into png_ptr->big_row_buf.
4418N/A Added more blank lines for readability.
4418N/A
4418N/AVersion 1.5.0beta25 [June 18, 2010]
4418N/A In pngpread.c: png_push_have_row() add check for new_row > height
4418N/A Removed the now-redundant check for out-of-bounds new_row from example.c
4418N/A
4418N/AVersion 1.5.0beta26 [June 18, 2010]
4418N/A In pngpread.c: png_push_process_row() add check for too many rows.
4418N/A
4418N/AVersion 1.5.0beta27 [June 18, 2010]
4418N/A Removed the check added in beta25 as it is now redundant.
4418N/A
4418N/AVersion 1.5.0beta28 [June 20, 2010]
4418N/A Rewrote png_process_IDAT_data to consistently treat extra data as warnings
4418N/A and handle end conditions more cleanly.
4418N/A Removed the new (beta26) check in png_push_process_row().
4418N/A
4418N/AVersion 1.5.0beta29 [June 21, 2010]
4418N/A Revised scripts/options.awk to work on Sunos (but still doesn't work)
4418N/A Added comment to options.awk and contrib/pngminim/*/makefile to try nawk.
4418N/A
4418N/AVersion 1.5.0beta30 [June 22, 2010]
4418N/A Stop memory leak when reading a malformed sCAL chunk.
4418N/A
4418N/AVersion 1.5.0beta31 [June 26, 2010]
4418N/A Revised pngpread.c patch of beta28 to avoid an endless loop.
4418N/A Removed some trailing blanks.
4418N/A
4418N/AVersion 1.5.0beta32 [June 26, 2010]
4418N/A Removed leftover scripts/options.patch and scripts/options.rej
4418N/A
4418N/AVersion 1.5.0beta33 [July 6, 3010]
4418N/A Made FIXED and FLOATING options consistent in the APIs they enable and
4418N/A disable. Corrected scripts/options.awk to handle both command line
4418N/A options and options specified in the .dfa files.
4418N/A Changed char *msg to PNG_CONST char *msg in pngrutil.c
4418N/A Make png_set_sRGB_gAMA_and_cHRM set values using either the fixed or
4418N/A floating point APIs, but not both.
4418N/A Reversed patch to remove error handler when the jmp_buf is stored in the
4418N/A main program structure, not the png_struct.
4418N/A The error handler is needed because the default handler in libpng will
4418N/A always use the jmp_buf in the library control structure; this is never
4418N/A set. The gregbook code is a useful example because, even though it
4418N/A uses setjmp/longjmp, it shows how error handling can be implemented
4418N/A using control mechanisms not directly supported by libpng. The
4418N/A technique will work correctly with mechanisms such as Microsoft
4418N/A Structure Exceptions or C++ exceptions (compiler willing - note that gcc
4418N/A does not by default support interworking of C and C++ error handling.)
4418N/A Reverted changes to call png_longjmp in contrib/gregbook where it is not
4418N/A appropriate. If mainprog->jmpbuf is used by setjmp, then png_longjmp
4418N/A cannot be used.
4418N/A Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans)
4418N/A Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {')
4418N/A
4418N/AVersion 1.5.0beta34 [July 12, 2010]
4418N/A Put #ifndef PNG_EXTERN, #endif around the define PNG_EXTERN in pngpriv.h
4418N/A
4418N/AVersion 1.5.0beta35 [July 24, 2010]
4418N/A Removed some newly-added TAB characters.
4418N/A Added -DNO_PNG_SNPRINTF to CFLAGS in scripts/makefile.dj2
4418N/A Moved the definition of png_snprintf() outside of the enclosing
4418N/A #ifdef blocks in pngconf.h
4418N/A
4418N/AVersion 1.5.0beta36 [July 29, 2010]
4418N/A Patches by John Bowler:
4418N/A Fixed point APIs are now supported throughout (no missing APIs).
4418N/A Internal fixed point arithmetic support exists for all internal floating
4418N/A point operations.
4418N/A sCAL validates the floating point strings it is passed.
4418N/A Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2
4418N/A Two new APIs exist to get the number of passes without turning on the
4418N/A PNG_INTERLACE transform and to get the number of rows in the current
4418N/A pass.
4418N/A A new test program, pngvalid.c, validates the gamma code.
4418N/A Errors in the 16-bit gamma correction (overflows) have been corrected.
4418N/A cHRM chunk testing is done consistently (previously the floating point
4418N/A API bypassed it, because the test really didn't work on FP, now the test
4418N/A is performed on the actual values to be stored in the PNG file so it
4418N/A works in the FP case too.)
4418N/A Most floating point APIs now simply call the fixed point APIs after
4418N/A converting the values to the fixed point form used in the PNG file.
4418N/A The standard headers no longer include zlib.h, which is currently only
4418N/A required for pngstruct.h and can therefore be internal.
4418N/A Revised png_get_int_32 to undo the PNG two's complement representation of
4418N/A negative numbers.
4418N/A
4418N/AVersion 1.5.0beta37 [July 30, 2010]
4418N/A Added a typecast in png_get_int_32() in png.h and pngrutil.h to avoid
4418N/A a compiler warning.
4418N/A Replaced oFFs 0,0 with oFFs -10,20 in pngtest.png
4418N/A
4418N/AVersion 1.5.0beta38 [July 31, 2010]
4418N/A Implemented remaining "_fixed" functions.
4418N/A Corrected a number of recently introduced warnings mostly resulting from
4418N/A safe but uncast assignments to shorter integers. Also added a zlib
4418N/A VStudio release library project because the latest zlib Official Windows
4418N/A build does not include such a thing.
4418N/A Revised png_get_int_16() to be similar to png_get_int_32().
4418N/A Restored projects/visualc71.
4418N/A
4418N/AVersion 1.5.0beta39 [August 2, 2010]
4418N/A VisualC/GCC warning fixes, VisualC build fixes
4418N/A The changes include support for function attributes in VC in addition to
4418N/A those already present in GCC - necessary because without these some
4418N/A warnings are unavoidable. Fixes include signed/unsigned fixes in
4418N/A pngvalid and checks with gcc -Wall -Wextra -Wunused.
4418N/A VC requires function attributes on function definitions as well as
4418N/A declarations, PNG_FUNCTION has been added to enable this and the
4418N/A relevant function definitions changed.
4418N/A
4418N/AVersion 1.5.0beta40 [August 6, 2010]
4418N/A Correct use of _WINDOWS_ in pngconf.h
4418N/A Removed png_mem_ #defines; they are no longer used.
4418N/A Added the sRGB chunk to pngtest.png
4418N/A
4418N/AVersion 1.5.0beta41 [August 11, 2010]
4418N/A Added the cHRM chunk to pngtest.png
4418N/A Don't try to use version-script with cygwin/mingw.
4418N/A Revised contrib/gregbook to work under cygwin/mingw.
4418N/A
4418N/AVersion 1.5.0beta42 [August 18, 2010]
4418N/A Add .dll.a to the list of extensions to be symlinked by Makefile.am (Yaakov)
4418N/A Made all API functions that have const arguments and constant string
4418N/A literal pointers declare them (John Bowler).
4418N/A
4418N/AVersion 1.5.0beta43 [August 20, 2010]
4418N/A Removed spurious tabs, shorten long lines (no source change)
4418N/A Also added scripts/chkfmt to validate the format of all the files that can
4418N/A reasonably be validated (it is suggested to run "make distclean" before
4418N/A checking, because some machine generated files have long lines.)
4418N/A Reformatted the CHANGES file to be more consistent throughout.
4418N/A Made changes to address various issues identified by GCC, mostly
4418N/A signed/unsigned and shortening problems on assignment but also a few
4418N/A difficult to optimize (for GCC) loops.
4418N/A Fixed non-GCC fixed point builds. In png.c a declaration was misplaced
4418N/A in an earlier update. Fixed to declare the auto variables at the head.
4418N/A Use cexcept.h in pngvalid.c.
4418N/A
4418N/AVersion 1.5.0beta44 [August 24, 2010]
4418N/A Updated CMakeLists.txt to use CMAKE_INSTALL_LIBDIR variable; useful for
4418N/A installing libpng in /usr/lib64 (Funda Wang).
4418N/A Revised CMakeLists.txt to put the man pages in share/man/man* not man/man*
4418N/A Revised CMakeLists.txt to make symlinks instead of copies when installing.
4418N/A Changed PNG_LIB_NAME from pngNN to libpngNN in CMakeLists.txt (Philip Lowman)
4418N/A Implemented memory checks within pngvalid
4418N/A Reformatted/rearranged pngvalid.c to assist use of progressive reader.
4418N/A Check interlaced images in pngvalid
4418N/A Clarified pngusr.h comments in pnglibconf.dfa
4418N/A Simplified the pngvalid error-handling code now that cexcept.h is in place.
4418N/A Implemented progressive reader in pngvalid.c for standard tests
4418N/A Implemented progressive read in pngvalid.c gamma tests
4418N/A Turn on progressive reader in pngvalid.c by default and tidy code.
4418N/A
4418N/AVersion 1.5.0beta45 [August 26, 2010]
4418N/A Added an explicit make step to projects/vstudio for pnglibconf.h
4418N/A Also corrected zlib.vcxproj into which Visual Studio had introduced
4418N/A what it calls an "authoring error". The change to make pnglibconf.h
4418N/A simply copies the file; in the future it may actually generate the
4418N/A file from scripts/pnglibconf.dfa as the other build systems do.
4418N/A Changed pngvalid to work when floating point APIs are disabled
4418N/A Renamed the prebuilt scripts/pnglibconf.h to scripts/pnglibconf.h.prebuilt
4418N/A Supply default values for PNG_USER_PRIVATEBUILD and PNG_USER_DLLFNAME_POSTFIX
4418N/A in pngpriv.h in case the user neglected to define them in their pngusr.h
4418N/A
4418N/AVersion 1.5.0beta46 [August 28, 2010]
4418N/A Added new private header files to libpng_sources in CMakeLists.txt
4418N/A Added PNG_READ_16BIT, PNG_WRITE_16BIT, and PNG_16BIT options.
4418N/A Added reference to scripts/pnglibconf.h.prebuilt in the visualc71 project.
4418N/A
4418N/AVersion 1.5.0beta47 [September 11, 2010]
4418N/A Fixed a number of problems with 64-bit compilation reported by Visual
4418N/A Studio 2010 (John Bowler).
4418N/A
4418N/AVersion 1.5.0beta48 [October 4, 2010]
4418N/A Updated CMakeLists.txt (Philip Lowman).
4418N/A Revised autogen.sh to recognize and use $AUTOCONF, $AUTOMAKE, $AUTOHEADER,
4418N/A $AUTOPOINT, $ACLOCAL and $LIBTOOLIZE
4418N/A Fixed problem with symbols creation in Makefile.am which was assuming that
4418N/A all versions of ccp write to standard output by default (Martin Banky). The
4418N/A bug was introduced in libpng-1.2.9beta5.
4418N/A Removed unused mkinstalldirs.
4418N/A
4418N/AVersion 1.5.0beta49 [October 8, 2010]
4418N/A Undid Makefile.am revision of 1.5.0beta48.
4418N/A
4418N/AVersion 1.5.0beta50 [October 14, 2010]
4418N/A Revised Makefile.in to account for mkinstalldirs being removed.
4418N/A Added some "(unsigned long)" typecasts in printf statements in pngvalid.c.
4418N/A Suppressed a compiler warning in png_handle_sPLT().
4418N/A Check for out-of-range text compression mode in png_set_text().
4418N/A
4418N/AVersion 1.5.0beta51 [October 15, 2010]
4418N/A Changed embedded dates to "(PENDING RELEASE) in beta releases (and future
4418N/A rc releases) to minimize the difference between releases.
4418N/A
4418N/AVersion 1.5.0beta52 [October 16, 2010]
4418N/A Restored some of the embedded dates (in png.h, png.c, documentation, etc.)
4418N/A
4418N/AVersion 1.5.0beta53 [October 18, 2010]
4418N/A Updated INSTALL to mention using "make maintainer-clean" and to remove
4418N/A obsolete statement about a custom ltmain.sh
4418N/A Disabled "color-tests" by default in Makefile.am so it will work with
4418N/A automake versions earlier than 1.11.1
4418N/A Use document name "libpng-manual.txt" instead of "libpng-<version>.txt"
4418N/A to simplify version differences.
4418N/A Removed obsolete remarks about setjmp handling from INSTALL.
4418N/A Revised and renamed the typedef in png.h and png.c that was designed
4418N/A to catch library and header mismatch.
4418N/A
4418N/AVersion 1.5.0beta54 [November 10, 2010]
4418N/A Require 48 bytes, not 64 bytes, for big_row_buf in overflow checks.
4418N/A Used a consistent structure for the pngget.c functions.
4418N/A
4418N/AVersion 1.5.0beta55 [November 21, 2010]
4418N/A Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin)
4418N/A Moved reading of file signature into png_read_sig (Cosmin)
4418N/A Fixed atomicity of chunk header serialization (Cosmin)
4418N/A Added test for io_state in pngtest.c (Cosmin)
4418N/A Added "#!/bin/sh" at the top of contrib/pngminim/*/gather.sh scripts.
4418N/A Changes to remove gcc warnings (John Bowler)
4418N/A Certain optional gcc warning flags resulted in warnings in libpng code.
4418N/A With these changes only -Wconversion and -Wcast-qual cannot be turned on.
4418N/A Changes are trivial rearrangements of code. -Wconversion is not possible
4418N/A for pngrutil.c (because of the widespread use of += et al on variables
4418N/A smaller than (int) or (unsigned int)) and -Wcast-qual is not possible
4418N/A with pngwio.c and pngwutil.c because the 'write' callback and zlib
4418N/A compression both fail to declare their input buffers with 'const'.
4418N/A
4418N/AVersion 1.5.0beta56 [December 7, 2010]
4418N/A Added the private PNG_UNUSED() macro definition in pngpriv.h.
4418N/A Added some commentary about PNG_EXPORT in png.h and pngconf.h
4418N/A Revised PNG_EXPORT() macro and added PNG_EXPORTA() macro, with the
4418N/A objective of simplifying and improving the cosmetic appearance of png.h.
4418N/A Fixed some incorrect "=" macro names in pnglibconf.dfa
4418N/A Included documentation of changes in 1.5.0 from 1.4.x in libpng-manual.txt
4418N/A
4418N/AVersion 1.5.0beta57 [December 9, 2010]
4418N/A Documented the pngvalid gamma error summary with additional comments and
4418N/A print statements.
4418N/A Improved missing symbol handling in checksym.awk; symbols missing in both
4418N/A the old and new files can now be optionally ignored, treated as errors
4418N/A or warnings.
4418N/A Removed references to pngvcrd.c and pnggccrd.c from the vstudio project.
4418N/A Updated "libpng14" to "libpng15" in the visualc71 project.
4418N/A Enabled the strip16 tests in pngvalid.`
4418N/A Don't display test results (except PASS/FAIL) when running "make test".
4418N/A Instead put them in pngtest-log.txt
4418N/A Added "--with-zprefix=<string>" to configure.ac
4418N/A Updated the prebuilt configuration files to autoconf version 2.68
4418N/A
4418N/AVersion 1.5.0beta58 [December 19, 2010]
4418N/A Fixed interlace image handling and add test cases (John Bowler)
4418N/A Fixed the clean rule in Makefile.am to remove pngtest-log.txt
4418N/A Made minor changes to work around warnings in gcc 3.4
4418N/A
4418N/AVersion 1.5.0rc01 [December 27, 2010]
4418N/A No changes.
4418N/A
4418N/AVersion 1.5.0rc02 [December 27, 2010]
4418N/A Eliminated references to the scripts/*.def files in project/visualc71.
4418N/A
4418N/AVersion 1.5.0rc03 [December 28, 2010]
4418N/A Eliminated scripts/*.def and revised Makefile.am accordingly
4418N/A
4418N/AVersion 1.5.0rc04 [December 29, 2010]
4418N/A Fixed bug in background transformation handling in pngrtran.c (it was
4418N/A looking for the flag in png_ptr->transformations instead of in
4418N/A png_ptr->flags) (David Raymond).
4418N/A
4418N/AVersion 1.5.0rc05 [December 31, 2010]
4418N/A Fixed typo in a comment in CMakeLists.txt (libpng14 => libpng15) (Cosmin)
4418N/A
4418N/AVersion 1.5.0rc06 [January 4, 2011]
4418N/A Changed the new configure option "zprefix=string" to "zlib-prefix=string"
4418N/A
4418N/AVersion 1.5.0rc07 [January 4, 2011]
4418N/A Updated copyright year.
4418N/A
4418N/AVersion 1.5.0 [January 6, 2011]
4418N/A No changes.
4418N/A
4418N/Aversion 1.5.1beta01 [January 8, 2011]
4418N/A Added description of png_set_crc_action() to the manual.
4418N/A Added a note in the manual that the type of the iCCP profile was changed
4418N/A from png_charpp to png_bytepp in png_get_iCCP(). This change happened
4418N/A in version 1.5.0beta36 but is not noted in the CHANGES. Similarly,
4418N/A it was changed from png_charpp to png_const_bytepp in png_set_iCCP().
4418N/A Ensure that png_rgb_to_gray ignores palette mapped images, if libpng
4418N/A internally happens to call it with one.
4418N/A Fixed a failure to handle palette mapped images correctly.
4418N/A
4418N/AVersion 1.5.1beta02 [January 14, 2011]
4418N/A Fixed a bug in handling of interlaced images (bero at arklinux.org).
4418N/A Updated CMakeLists.txt (Clifford Yapp)
4418N/A
4418N/AVersion 1.5.1beta03 [January 14, 2011]
4418N/A Fixed typecasting of some png_debug() statements (Cosmin)
4418N/A
4418N/AVersion 1.5.1beta04 [January 16, 2011]
4418N/A Updated documentation of png_set|get_tRNS() (Thomas Klausner).
4418N/A Mentioned in the documentation that applications must #include "zlib.h"
4418N/A if they need access to anything in zlib.h, and that a number of
4418N/A macros such as png_memset() are no longer accessible by applications.
4418N/A Corrected pngvalid gamma test "sample" function to access all of the color
4418N/A samples of each pixel, instead of sampling the red channel three times.
4418N/A Prefixed variable names index, div, exp, gamma with "png_" to avoid "shadow"
4418N/A warnings, and (mistakenly) changed png_exp() to exp().
4418N/A
4418N/AVersion 1.5.1beta05 [January 16, 2011]
4418N/A Changed variable names png_index, png_div, png_exp, and png_gamma to
4418N/A char_index, divisor, exp_b10, and gamma_val, respectively, and
4418N/A changed exp() back to png_exp().
4418N/A
4418N/AVersion 1.5.1beta06 [January 20, 2011]
4418N/A Prevent png_push_crc_skip() from hanging while reading an unknown chunk
4418N/A or an over-large compressed zTXt chunk with the progressive reader.
4418N/A Eliminated more GCC "shadow" warnings.
4418N/A Revised png_fixed() in png.c to avoid compiler warning about reaching the
4418N/A end without returning anything.
4418N/A
4418N/AVersion 1.5.1beta07 [January 22, 2011]
4418N/A In the manual, describe the png_get_IHDR() arguments in the correct order.
4418N/A Added const_png_structp and const_png_infop types, and used them in
4418N/A prototypes for most png_get_*() functions.
4418N/A
4418N/AVersion 1.5.1beta08 [January 23, 2011]
4418N/A Added png_get_io_chunk_type() and deprecated png_get_io_chunk_name()
4418N/A Added synopses for the IO_STATE functions and other missing synopses
4418N/A to the manual. Removed the synopses from libpngpf.3 because they
4418N/A were out of date and no longer useful. Better information can be
4418N/A obtained by reading the prototypes and comments in pngpriv.h
4418N/A Attempted to fix cpp on Solaris with S. Studio 12 cc, fix build
4418N/A Added a make macro DFNCPP that is a CPP that will accept the tokens in
4418N/A a .dfn file and adds configure stuff to test for such a CPP. ./configure
4418N/A should fail if one is not available.
4418N/A Corrected const_png_ in png.h to png_const_ to avoid polluting the namespace.
4418N/A Added png_get_current_row_number and png_get_current_pass_number for the
4418N/A benefit of the user transform callback.
4418N/A Added png_process_data_pause and png_process_data_skip for the benefit of
4418N/A progressive readers that need to stop data processing or want to optimize
4418N/A skipping of unread data (e.g., if the reader marks a chunk to be skipped.)
4418N/A
4418N/AVersion 1.5.1beta09 [January 24, 2011]
4418N/A Enhanced pngvalid, corrected an error in gray_to_rgb, corrected doc error.
4418N/A pngvalid contains tests of transforms, which tests are currently disabled
4418N/A because they are incompletely tested. gray_to_rgb was failing to expand
4418N/A the bit depth for smaller bit depth images; this seems to be a long
4418N/A standing error and resulted, apparently, in invalid output
4418N/A (CVE-2011-0408, CERT VU#643140). The documentation did not accurately
4418N/A describe what libpng really does when converting RGB to gray.
4418N/A
4418N/AVersion 1.5.1beta10 [January 27, 2010]
4418N/A Fixed incorrect examples of callback prototypes in the manual, that were
4418N/A introduced in libpng-1.0.0.
4418N/A In addition the order of the png_get_uint macros with respect to the
4418N/A relevant function definitions has been reversed. This helps the
4418N/A preprocessing of the symbol files be more robust. Furthermore, the
4418N/A symbol file preprocessing now uses -DPNG_NO_USE_READ_MACROS even when
4418N/A the library may actually be built with PNG_USE_READ_MACROS; this stops
4418N/A the read macros interfering with the symbol file format.
4418N/A Made the manual, synopses, and function prototypes use the function
4418N/A argument names file_gamma, int_file_gamma, and srgb_intent consistently.
4418N/A
4418N/AVersion 1.5.1beta11 [January 28, 2011]
4418N/A Changed PNG_UNUSED from "param=param;" to "{if(param){}}".
4418N/A Corrected local variable type in new API png_process_data_skip()
4418N/A The type was self-evidently incorrect but only causes problems on 64-bit
4418N/A architectures.
4418N/A Added transform tests to pngvalid and simplified the arguments.
4418N/A
4418N/AVersion 1.5.1rc01 [January 29, 2011]
4418N/A No changes.
4418N/A
4418N/AVersion 1.5.1rc02 [January 31, 2011]
4418N/A Added a request in the manual that applications do not use "png_" or
4418N/A "PNG_" to begin any of their own symbols.
4418N/A Changed PNG_UNUSED to "(void)param;" and updated the commentary in pngpriv.h
4418N/A
4418N/AVersion 1.5.1 [February 3, 2011]
4418N/A No changes.
4418N/A
4418N/AVersion 1.5.2beta01 [February 13, 2011]
4418N/A More -Wshadow fixes for older gcc compilers. Older gcc versions apparently
4418N/A check formal parameters names in function declarations (as well as
4418N/A definitions) to see if they match a name in the global namespace.
4418N/A Revised PNG_EXPORTA macro to not use an empty parameter, to accommodate the
4418N/A old VisualC++ preprocessor.
4418N/A Turned on interlace handling in png_read_png().
4418N/A Fixed gcc pendantic warnings.
4418N/A Handle longjmp in Cygwin.
4418N/A Fixed png_get_current_row_number() in the interlaced case.
4418N/A Cleaned up ALPHA flags and transformations.
4418N/A Implemented expansion to 16 bits.
4418N/A
4418N/AVersion 1.5.2beta02 [February 19, 2011]
4418N/A Fixed mistake in the descriptions of user read_transform and write_transform
4418N/A function prototypes in the manual. The row_info struct is png_row_infop.
4418N/A Reverted png_get_current_row_number() to previous (1.5.2beta01) behavior.
4418N/A Corrected png_get_current_row_number documentation
4418N/A Fixed the read/write row callback documentation.
4418N/A This documents the current behavior, where the callback is called after
4418N/A every row with information pertaining to the next row.
4418N/A
4418N/AVersion 1.5.2beta03 [March 3, 2011]
4418N/A Fixed scripts/makefile.vcwin32
4418N/A Updated contrib/pngsuite/README to add the word "modify".
4418N/A Define PNG_ALLOCATED to blank when _MSC_VER<1300.
4418N/A
4418N/AVersion 1.5.2rc01 [March 19, 2011]
4418N/A Define remaining attributes to blank when MSC_VER<1300.
4418N/A ifdef out mask arrays in pngread.c when interlacing is not supported.
4418N/A
4418N/AVersion 1.5.2rc02 [March 22, 2011]
4418N/A Added a hint to try CPP=/bin/cpp if "cpp -E" fails in scripts/pnglibconf.mak
4418N/A and in contrib/pngminim/*/makefile, eg., on SunOS 5.10, and removed "strip"
4418N/A from the makefiles.
4418N/A Fixed a bug (present since libpng-1.0.7) that makes png_handle_sPLT() fail
4418N/A to compile when PNG_NO_POINTER_INDEXING is defined (Chubanov Kirill)
4418N/A
4418N/AVersion 1.5.2rc03 [March 24, 2011]
4418N/A Don't include standard header files in png.h while building the symbol table,
4418N/A to avoid cpp failure on SunOS (introduced PNG_BUILDING_SYMBOL_TABLE macro).
4418N/A
4418N/AVersion 1.5.2 [March 31, 2011]
4418N/A No changes.
4418N/A
4418N/AVersion 1.5.3beta01 [April 1, 2011]
4418N/A Re-initialize the zlib compressor before compressing non-IDAT chunks.
4418N/A Added API functions to set parameters for zlib compression of non-IDAT
4418N/A chunks.
4418N/A
4418N/AVersion 1.5.3beta02 [April 3, 2011]
4418N/A Updated scripts/symbols.def with new API functions.
4418N/A Only compile the new zlib re-initializing code when text or iCCP is
4418N/A supported, using PNG_WRITE_COMPRESSED_TEXT_SUPPORTED macro.
4418N/A Improved the optimization of the zlib CMF byte (see libpng-1.2.6beta03).
4418N/A Optimize the zlib CMF byte in non-IDAT compressed chunks
4418N/A
4418N/AVersion 1.5.3beta03 [April 16, 2011]
4418N/A Fixed gcc -ansi -pedantic compile. A strict ANSI system does not have
4418N/A snprintf, and the "__STRICT_ANSI__" detects that condition more reliably
4418N/A than __STDC__ (John Bowler).
4418N/A Removed the PNG_PTR_NORETURN attribute because it too dangerous. It tells
4418N/A the compiler that a user supplied callback (the error handler) does not
4418N/A return, yet there is no guarantee in practice that the application code
4418N/A will correctly implement the error handler because the compiler only
4418N/A issues a warning if there is a mistake (John Bowler).
4418N/A Removed the no-longer-used PNG_DEPSTRUCT macro.
4418N/A Updated the zlib version to 1.2.5 in the VStudio project.
4418N/A Fixed 64-bit builds where png_uint_32 is smaller than png_size_t in
4418N/A pngwutil.c (John Bowler).
4418N/A Fixed bug with stripping the filler or alpha channel when writing, that
4418N/A was introduced in libpng-1.5.2beta01 (bug report by Andrew Church).
4418N/A
4418N/AVersion 1.5.3beta04 [April 27, 2011]
4418N/A Updated pngtest.png with the new zlib CMF optimization.
4418N/A Cleaned up conditional compilation code and of background/gamma handling
4418N/A Internal changes only except a new option to avoid compiling the
4418N/A png_build_grayscale_palette API (which is not used at all internally.)
4418N/A The main change is to move the transform tests (READ_TRANSFORMS,
4418N/A WRITE_TRANSFORMS) up one level to the caller of the APIs. This avoids
4418N/A calls to spurious functions if all transforms are disabled and slightly
4418N/A simplifies those functions. Pngvalid modified to handle this.
4418N/A A minor change is to stop the strip_16 and expand_16 interfaces from
4418N/A disabling each other; this allows the future alpha premultiplication
4418N/A code to use 16-bit intermediate values while still producing 8-bit output.
4418N/A png_do_background and png_do_gamma have been simplified to take a single
4418N/A pointer to the png_struct rather than pointers to every item required
4418N/A from the png_struct. This makes no practical difference to the internal
4418N/A code.
4418N/A A serious bug in the pngvalid internal routine 'standard_display_init' has
4418N/A been fixed - this failed to initialize the red channel and accidentally
4418N/A initialized the alpha channel twice.
4418N/A Changed png_struct jmp_buf member name from png_jmpbuf to tmp_jmpbuf to
4418N/A avoid a possible clash with the png_jmpbuf macro on some platforms.
4418N/A
4418N/AVersion 1.5.3beta05 [May 6, 2011]
4418N/A Added the "_POSIX_SOURCE" feature test macro to ensure libpng sees the
4418N/A correct API. _POSIX_SOURCE is defined in pngpriv.h, pngtest.c and
4418N/A pngvalid.c to ensure that POSIX conformant systems disable non-POSIX APIs.
4418N/A Removed png_snprintf and added formatted warning messages. This change adds
4418N/A internal APIs to allow png_warning messages to have parameters without
4418N/A requiring the host OS to implement snprintf. As a side effect the
4418N/A dependency of the tIME-supporting RFC1132 code on stdio is removed and
4418N/A PNG_NO_WARNINGS does actually work now.
4418N/A Pass "" instead of '\0' to png_default_error() in png_err(). This mistake
4418N/A was introduced in libpng-1.2.20beta01.
4418N/A Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make the zlib "CMF" byte
4418N/A optimization configureable.
4418N/A IDAT compression failed if preceded by a compressed text chunk (bug
4418N/A introduced in libpng-1.5.3beta01-02). This was because the attempt to
4418N/A reset the zlib stream in png_write_IDAT happened after the first IDAT
4418N/A chunk had been deflated - much too late. In this change internal
4418N/A functions were added to claim/release the z_stream and, hopefully, make
4418N/A the code more robust. Also deflateEnd checking is added - previously
4418N/A libpng would ignore an error at the end of the stream.
4418N/A
4418N/AVersion 1.5.3beta06 [May 8, 2011]
4418N/A Removed the -D_ALL_SOURCE from definitions for AIX in CMakeLists.txt
4418N/A Implemented premultiplied alpha support: png_set_alpha_mode API
4418N/A
4418N/AVersion 1.5.3beta07 [May 11, 2011]
4418N/A Added expand_16 support to the high level interface.
4418N/A Added named value and 'flag' gamma support to png_set_gamma. Made a minor
4418N/A change from the previous (unreleased) ABI/API to hide the exact value used
4418N/A for Macs - it's not a good idea to embed this in the ABI!
4418N/A Moved macro definitions for PNG_HAVE_IHDR, PNG_HAVE_PLTE, and PNG_AFTER_IDAT
4418N/A from pngpriv.h to png.h because they must be visible to applications
4418N/A that call png_set_unknown_chunks().
4418N/A Check for up->location !PNG_AFTER_IDAT when writing unknown chunks
4418N/A before IDAT.
4418N/A
4418N/AVersion 1.5.3beta08 [May 16, 2011]
4418N/A Improved "pngvalid --speed" to exclude more of pngvalid from the time.
4418N/A Documented png_set_alpha_mode(), other changes in libpng.3/libpng-manual.txt
4418N/A The cHRM chunk now sets the defaults for png_set_rgb_to_gray() (when negative
4418N/A parameters are supplied by the caller), while in the absence of cHRM
4418N/A sRGB/Rec 709 values are still used.
4418N/A The bKGD chunk no longer overwrites the background value set by
4418N/A png_set_background(), allowing the latter to be used before the file
4418N/A header is read. It never performed any useful function to override
4418N/A the default anyway.
4418N/A Added memory overwrite and palette image checks to pngvalid.c
4418N/A Previously palette image code was poorly checked. Since the transformation
4418N/A code has a special palette path in most cases this was a severe weakness.
4418N/A Minor cleanup and some extra checking in pngrutil.c and pngrtran.c. When
4418N/A expanding an indexed image, always expand to RGBA if transparency is
4418N/A present.
4418N/A
4418N/AVersion 1.5.3beta09 [May 17, 2011]
4418N/A Reversed earlier 1.5.3 change of transformation order; move png_expand_16
4418N/A back where it was. The change doesn't work because it requires 16-bit
4418N/A gamma tables when the code only generates 8-bit ones. This fails
4418N/A silently; the libpng code just doesn't do any gamma correction. Moving
4418N/A the tests back leaves the old, inaccurate, 8-bit gamma calculations, but
4418N/A these are clearly better than none!
4418N/A
4418N/AVersion 1.5.3beta10 [May 20, 2011]
4418N/A
4418N/A png_set_background() and png_expand_16() did not work together correctly.
4418N/A This problem is present in 1.5.2; if png_set_background is called with
4418N/A need_expand false and the matching 16 bit color libpng erroneously just
4418N/A treats it as an 8-bit color because of where png_do_expand_16 is in the
4418N/A transform list. This simple fix reduces the supplied colour to 8-bits,
4418N/A so it gets smashed, but this is better than the current behavior.
4418N/A Added tests for expand16, more fixes for palette image tests to pngvalid.
4418N/A Corrects the code for palette image tests and disables attempts to
4418N/A validate palette colors.
4418N/A
4418N/AVersion 1.5.3rc01 [June 3, 2011]
4418N/A No changes.
4418N/A
4418N/AVersion 1.5.3rc02 [June 8, 2011]
4418N/A Fixed uninitialized memory read in png_format_buffer() (Bug report by
4418N/A Frank Busse, CVE-2011-2501, related to CVE-2004-0421).
4418N/A
4418N/AVersion 1.5.3beta11 [June 11, 2011]
4418N/A Fixed png_handle_sCAL which is broken in 1.5; added sCAL to pngtest.png
4418N/A Revised documentation about png_set_user_limits() to say that it also affects
4418N/A png writing.
4418N/A Revised handling of png_set_user_limits() so that it can increase the
4418N/A limit beyond the PNG_USER_WIDTH|HEIGHT_MAX; previously it could only
4418N/A reduce it.
4418N/A Make the 16-to-8 scaling accurate. Dividing by 256 with no rounding is
4418N/A wrong (high by one) 25% of the time. Dividing by 257 with rounding is
4418N/A wrong in 128 out of 65536 cases. Getting the right answer all the time
4418N/A without division is easy.
4418N/A Added "_SUPPORTED" to the PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION macro.
4418N/A Added projects/owatcom, an IDE project for OpenWatcom to replace
4418N/A scripts/makefile.watcom. This project works with OpenWatcom 1.9. The
4418N/A IDE autogenerates appropriate makefiles (libpng.mk) for batch processing.
4418N/A The project is configurable, unlike the Visual Studio project, so long
4418N/A as the developer has an awk.
4418N/A Changed png_set_gAMA to limit the gamma value range so that the inverse
4418N/A of the stored value cannot overflow the fixed point representation,
4418N/A and changed other things OpenWatcom warns about.
4418N/A Revised pngvalid.c to test PNG_ALPHA_MODE_SUPPORTED correctly. This allows
4418N/A pngvalid to build when ALPHA_MODE is not supported, which is required if
4418N/A it is to build on libpng 1.4.
4418N/A Removed string/memory macros that are no longer used and are not
4418N/A necessarily fully supportable, particularly png_strncpy and png_snprintf.
4418N/A Added log option to pngvalid.c and attempted to improve gamma messages.
4418N/A
4418N/AVersion 1.5.3 [omitted]
4418N/A People found the presence of a beta release following an rc release
4418N/A to be confusing; therefore we bump the version to libpng-1.5.4beta01
4418N/A and there will be no libpng-1.5.3 release.
4418N/A
4418N/AVersion 1.5.4beta01 [June 14, 2011]
4418N/A Made it possible to undefine PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
4418N/A to get the same (inaccurate) output as libpng-1.5.2 and earlier.
4418N/A Moved definitions of PNG_HAVE_IHDR, PNG_AFTER_IDAT, and PNG_HAVE_PLTE
4418N/A outside of an unknown-chunk block in png.h because they are also
4418N/A needed for other uses.
4418N/A
4418N/AVersion 1.5.4beta02 [June 14, 2011]
4418N/A Fixed and clarified LEGACY 16-to-8 scaling code.
4418N/A Added png_set_chop_16() API, to match inaccurate results from previous
4418N/A libpng versions.
4418N/A Removed the ACCURATE and LEGACY options (they are no longer useable)
4418N/A Use the old scaling method for background if png_set_chop_16() was
4418N/A called.
4418N/A Made png_set_chop_16() API removeable by disabling PNG_CHOP_16_TO_8_SUPPORTED
4418N/A
4418N/AVersion 1.5.4beta03 [June 15, 2011]
4418N/A Fixed a problem in png_do_expand_palette() exposed by optimization in
4418N/A 1.5.3beta06
4418N/A Also removed a spurious and confusing "trans" member ("trans") from png_info.
4418N/A The palette expand optimization prevented expansion to an intermediate RGBA
4418N/A form if tRNS was present but alpha was marked to be stripped; this exposed
4418N/A a check for tRNS in png_do_expand_palette() which is inconsistent with the
4418N/A code elsewhere in libpng.
4418N/A Correction to the expand_16 code; removed extra instance of
4418N/A png_set_scale_16_to_8 from pngpriv.h
4418N/A
4418N/AVersion 1.5.4beta04 [June 16, 2011]
4418N/A Added a missing "#ifdef PNG_READ_BACKGROUND_SUPPORTED/#endif" in pngrtran.c
4418N/A Added PNG_TRANSFORM_CHOP_16 to the high-level read transforms.
4418N/A Made PNG_READ_16_TO_8_ACCURATE_SCALE configurable again. If this is
4418N/A not enabled, png_set_strip_16() and png_do_scale_16_to_8() aren't built.
4418N/A Revised contrib/visupng, gregbook, and pngminim to demonstrate chop_16_to_8
4418N/A
4418N/AVersion 1.5.4beta05 [June 16, 2011]
4418N/A Renamed png_set_strip_16() to png_set_scale_16() and renamed
4418N/A png_set_chop_16() to png_set_strip(16) in an attempt to minimize the
4418N/A behavior changes between libpng14 and libpng15.
4418N/A
4418N/AVersion 1.5.4beta06 [June 18, 2011]
4418N/A Fixed new bug that was causing both strip_16 and scale_16 to be applied.
4418N/A
4418N/AVersion 1.5.4beta07 [June 19, 2011]
4418N/A Fixed pngvalid, simplified macros, added checking for 0 in sCAL.
4418N/A The ACCURATE scale macro is no longer defined in 1.5 - call the
4418N/A png_scale_16_to_8 API. Made sure that PNG_READ_16_TO_8 is still defined
4418N/A if the png_strip_16_to_8 API is present. png_check_fp_number now
4418N/A maintains some state so that positive, negative and zero values are
4418N/A identified. sCAL uses these to be strictly spec conformant.
4418N/A
4418N/AVersion 1.5.4beta08 [June 23, 2011]
4418N/A Fixed pngvalid if ACCURATE_SCALE is defined.
4418N/A Updated scripts/pnglibconf.h.prebuilt.
4418N/A
4418N/AVersion 1.5.4rc01 [June 30, 2011]
4418N/A Define PNG_ALLOCATED to "restrict" only if MSC_VER >= 1400.
4418N/A
4418N/AVersion 1.5.4 [July 7, 2011]
4418N/A
0N/ASend comments/corrections/commendations to png-mng-implement at lists.sf.net
0N/A(subscription required; visit
0N/Ahttps://lists.sourceforge.net/lists/listinfo/png-mng-implement
0N/Ato subscribe)
0N/Aor to glennrp at users.sourceforge.net
0N/A
0N/AGlenn R-P
4418N/A*/ }
4418N/A#endif