X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2b5f62a0b2db198609b45dec622a018dae37008e..daebb84bff054d3833baca58a5dc506de56c64a1:/src/png/CHANGES diff --git a/src/png/CHANGES b/src/png/CHANGES index d526aee119..b34597fc5e 100644 --- a/src/png/CHANGES +++ b/src/png/CHANGES @@ -4,6 +4,7 @@ CHANGES - changes for libpng version 0.2 added reader into png.h fixed small problems in stub file + version 0.3 added pull reader split up pngwrite.c to several files @@ -14,6 +15,7 @@ version 0.3 interfaced with zlib 0.5 added K&R support added check for 64 KB blocks for 16 bit machines + version 0.4 cleaned up code and commented code simplified time handling into png_time @@ -24,23 +26,28 @@ version 0.4 interfaced with zlib 0.71 cleaned up zTXt reader and writer (using zlib's Reset functions) split transformations into pngrtran.c and pngwtran.c + version 0.5 interfaced with zlib 0.8 fixed many reading and writing bugs saved using 3 spaces instead of tabs + version 0.6 added png_large_malloc() and png_large_free() added png_size_t cleaned up some compiler warnings added png_start_read_image() + version 0.7 cleaned up lots of bugs finished dithering and other stuff added test program changed name from pnglib to libpng + version 0.71 [June, 1995] changed pngtest.png for zlib 0.93 fixed error in libpng.txt and example.c + version 0.8 cleaned up some bugs added png_set_filler() @@ -57,27 +64,34 @@ version 0.8 enabled png_set_shift to work with paletted images on read added png_read_update_info() - updates info structure with transformations + version 0.81 [August, 1995] incorporated Tim Wegner's medium model code (thanks, Tim) + version 0.82 [September, 1995] [unspecified changes] + version 0.85 [December, 1995] added more medium model code (almost everything's a far) added i/o, error, and memory callback functions fixed some bugs (16 bit, 4 bit interlaced, etc.) added first run progressive reader (barely tested) + version 0.86 [January, 1996] fixed bugs improved documentation + version 0.87 [January, 1996] fixed medium model bugs fixed other bugs introduced in 0.85 and 0.86 added some minor documentation + version 0.88 [January, 1996] fixed progressive bugs replaced tabs with spaces cleaned up documentation added callbacks for read/write and warning/error functions + version 0.89 [July, 1996] added new initialization API to make libpng work better with shared libs we now have png_create_read_struct(), png_create_write_struct(), @@ -104,6 +118,7 @@ version 0.89 [July, 1996] into a binary when only reading or writing functionality is used new pngtest image also has interlacing and zTXt updated documentation to reflect new API + version 0.90 [January, 1997] made CRC errors/warnings on critical and ancillary chunks configurable libpng will use the zlib CRC routines by (compile-time) default @@ -125,6 +140,7 @@ version 0.90 [January, 1997] be able to handle all chunks via a callback mechanism try to fix Linux "setjmp" buffer size problems removed png_large_malloc, png_large_free, and png_realloc functions. + version 0.95 [March, 1997] fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never fixed bug in PNG file signature compares when start != 0 @@ -159,6 +175,7 @@ version 0.95 [March, 1997] functions in pngget.c to get infomation in info_ptr. This isolates the application from the internal organization of png_info_struct (good for shared library implementations). + version 0.96 [May, 1997] fixed serious bug with < 8bpp images introduced in 0.95 fixed 256-color transparency bug (Greg Roelofs) @@ -169,6 +186,7 @@ version 0.96 [May, 1997] added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul) added typecasts to quiet compiler errors added more debugging info + version 0.97 [January, 1998] removed PNG_USE_OWN_CRC capability relocated png_set_crc_action from pngrutil.c to pngrtran.c @@ -191,6 +209,7 @@ version 0.97 [January, 1998] added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler) regularized version numbering scheme and bumped shared-library major version number to 2 to avoid problems with libpng 0.89 apps (Greg Roelofs) + version 0.98 [January, 1998] cleaned up some typos in libpng.txt and in code documentation fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler) @@ -202,6 +221,7 @@ version 0.98 [January, 1998] PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent) changed srgb_intent from png_byte to int to avoid compiler bugs + version 0.99 [January 30, 1998] free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler) fixed a longstanding "packswap" bug in pngtrans.c @@ -262,6 +282,7 @@ version 0.99h [March 6, 1998, evening] Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro Added user transform capability + version 1.00 [March 7, 1998] Changed several typedefs in pngrutil.c Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik) @@ -271,6 +292,7 @@ version 1.00 [March 7, 1998] changed some typedefs (s_start, etc.) in pngrutil.c fixed dimensions of "short_months" array in pngwrite.c Replaced ansi2knr.c with the one from jpeg-v6 + version 1.0.0 [March 8, 1998] Changed name from 1.00 to 1.0.0 (Adam Costello) Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert) @@ -285,6 +307,7 @@ version 1.0.0b [March 13, 1998] Quieted compiler complaints about two empty "for" loops in pngrutil.c Minor changes to makefile.s2x Removed #ifdef/#endif around a png_free() in pngread.c + version 1.0.1 [March 14, 1998] Changed makefile.s2x to reduce security risk of using a relative pathname Fixed some typos in the documentation (Greg). @@ -353,6 +376,7 @@ version 1.0.1e [June 6, 1998] and revised pngtest.c to demonstrate their use, replacing the PNGTEST_DEBUG_MEM feature. Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner). + version 1.0.2 [June 14, 1998] Fixed two bugs in makefile.bor . version 1.0.2a [December 30, 1998] @@ -387,6 +411,7 @@ version 1.0.2a [January 6, 1999] Changed "check_if_png" function in example.c to return true (nonzero) if PNG. Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig() which is obsolete. + version 1.0.3 [January 14, 1999] Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice) Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO. @@ -439,6 +464,7 @@ version 1.0.3d [September 4, 1999] Fixed type casting of igamma in pngrutil.c Added new png_expand functions to scripts/pngdef.pas and pngos2.def Added a demo read_user_transform_fn that examines the row filters in pngtest.c + version 1.0.4 [September 24, 1999] Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h @@ -477,6 +503,7 @@ version 1.0.4f [October 15, 1999] Added type casting mostly in pngrtran.c and pngwtran.c Removed some pointless "ptr = NULL" in pngmem.c Added a "contrib" directory containing the source code from Greg's book. + version 1.0.5 [October 15, 1999] Minor editing of the INSTALL and README files. version 1.0.5a [October 23, 1999] @@ -660,6 +687,7 @@ version 1.0.5v [March 11, 2000] Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt. Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3, revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin) + version 1.0.6 [March 20, 2000] Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c Added makefile.sggcc (SGI IRIX with gcc) @@ -798,6 +826,7 @@ version 1.0.7beta18 [June 23, 2000] version 1.0.7rc2 [June 28, 2000] Updated license to include disclaimers required by UCITA. Fixed "DJBPP" typo in pnggccrd.c introduced in beta18. + version 1.0.7 [July 1, 2000] Revised the definition of "trans_values" in libpng.3/libpng.txt version 1.0.8beta1 [July 8, 2000] @@ -822,6 +851,7 @@ version 1.0.8beta4 [July 14, 2000] Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory) version 1.0.8rc1 [July 16, 2000] Revised png_debug() macros and statements to eliminate compiler warnings. + version 1.0.8 [July 24, 2000] Added png_flush() in pngwrite.c, after png_write_IEND(). Updated makefile.hpux to build a shared library. @@ -892,6 +922,7 @@ version 1.0.9beta11 [January 19, 2001] be re-enabled in version 1.2.0. version 1.0.9rc2 [January 22, 2001] Revised cygwin support. + version 1.0.9 [January 31, 2001] Added check of cygwin's ALL_STATIC in pngconf.h Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos. @@ -913,6 +944,7 @@ version 1.0.10rc1 [March 23, 2001] and png_strlen. Revised png_mmx_supported() function in pnggccrd.c to return proper value. Fixed bug in progressive reading (pngpread.c) with small images (height < 8). + version 1.0.10 [March 30, 2001] Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin Added beos project files (Chris Herborth) @@ -930,6 +962,7 @@ version 1.0.11beta4 [April 20, 2001] from user's malloc_fn(). Removed some useless type casts of the NULL pointer. Added makefile.netbsd + version 1.0.11 [April 27, 2001] Revised makefile.netbsd version 1.0.12beta1 [May 14, 2001] @@ -978,6 +1011,7 @@ version 1.2.0beta5 [August 8, 2001] Revised makefile.sgi and makefile.sggcc Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c Removed restriction that do_invert_mono only operate on 1-bit opaque files + version 1.2.0 [September 1, 2001] Changed a png_warning() to png_debug() in pnggccrd.c Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC(). @@ -1011,6 +1045,7 @@ version 1.2.1rc2 [December 4, 2001] Always allocate 256-entry internal palette, hist, and trans arrays, to avoid out-of-bounds memory reference caused by invalid PNG datastreams. Added a check for prefix_length > data_length in iCCP chunk handler. + version 1.2.1 [December 7, 2001] None. version 1.2.2beta1 [February 22, 2002] @@ -1064,6 +1099,7 @@ version 1.0.13rc1 [April 7, 2002] Save the ebx register in pnggccrd.c (Sami Farin) Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner). Updated makefiles to put headers in include/libpng and remove old include/*.h. + version 1.2.2 [April 15, 2002] version 1.0.13 [April 15, 2002] Revised description of png_set_filter() in libpng.3/libpng.txt. @@ -1118,6 +1154,7 @@ version 1.2.3rc6 [May 14, 2002] Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp. Removed leftover libpng-config "sed" script from four makefiles. Revised libpng-config creating script in 16 makefiles. + version 1.2.3 [May 22, 2002] Revised libpng-config target in makefile.cygwin. Removed description of png_set_mem_fn() from documentation. @@ -1147,6 +1184,7 @@ version 1.2.4beta3 [June 28, 2002] version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002] Added "test-installed" target to makefile.cygwin and makefile.sco. Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro. + version 1.2.4 and 1.0.14 [July 8, 2002] Changed png_warning() to png_error() when width is too large to process. version 1.2.4patch01 [July 20, 2002] @@ -1174,7 +1212,162 @@ version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002] version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002] Revised libpng-config script. +version 1.2.5 and 1.0.15 [October 3, 2002] + Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux, + and makefile.aix. + Relocated two misplaced PNGAPI lines in pngtest.c +version 1.2.6beta1 [October 22, 2002] + Commented out warning about uninitialized mmx_support in pnggccrd.c. + Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h. + Relocated two more misplaced PNGAPI lines in pngtest.c + Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams, + introduced in version 1.0.2. + Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu. +version 1.2.6beta2 [November 1, 2002] + Added libpng-config "--ldopts" output. + Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)" + in makefiles. +version 1.2.6beta3 [July 18, 2004] + Reverted makefile changes from version 1.2.6beta2 and some of the changes + from version 1.2.6beta1; these will be postponed until version 1.2.7. + Version 1.2.6 is going to be a simple bugfix release. + Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile. + Fixed potential overrun in pngerror.c by using strncpy instead of memcpy. + Added "#!/bin/sh" at the top of configure, for recognition of the + 'x' flag under Cygwin (Cosmin). + Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin). + Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin). + Fixed the special memory handler for Borland C under DOS, in pngmem.c + (Cosmin). + Removed some spurious assignments in pngrutil.c (Cosmin). + Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings + on 16-bit platforms (Cosmin). + Enclosed shift op expressions in parentheses, to silence warnings (Cosmin). + Used proper type png_fixed_point, to avoid problems on 16-bit platforms, + in png_handle_sRGB() (Cosmin). + Added compression_type to png_struct, and optimized the window size + inside the deflate stream (Cosmin). + Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin). + Fixed handling of unknown chunks that come after IDAT (Cosmin). + Allowed png_error() and png_warning() to work even if png_ptr == NULL + (Cosmin). + Replaced row_info->rowbytes with row_bytes in png_write_find_filter() + (Cosmin). + Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre). + Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded + values in png.c (Simon-Pierre, Cosmin). + Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre). + Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc + (Simon-Pierre). + Moved the definition of PNG_HEADER_VERSION_STRING near the definitions + of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin). + Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin). + Updated scripts/makefile.vc(a)win32 (Cosmin). + Updated the MSVC project (Simon-Pierre, Cosmin). + Updated the Borland C++ Builder project (Cosmin). + Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin). + Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin). + Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin). + Added extra guard around inclusion of Turbo C memory headers, in pngconf.h + (Cosmin). + Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to + projects/cbuilder5/ (Cosmin). + Moved projects/visualc6/png32ms.def to scripts/pngw32.def, + and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin). + Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin). + Changed line endings to DOS style in cbuilder5 and visualc6 files, even + in the tar.* distributions (Cosmin). + Updated contrib/visupng/VisualPng.dsp (Cosmin). + Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin). + Added a separate distribution with "configure" and supporting files (Junichi). +version 1.2.6beta4 [July 28, 2004] + Added user ability to change png_size_t via a PNG_SIZE_T macro. + Added png_sizeof() and png_convert_size() functions. + Added PNG_SIZE_MAX (maximum value of a png_size_t variable. + Added check in png_malloc_default() for (size_t)size != (png_uint_32)size + which would indicate an overflow. + Changed sPLT failure action from png_error to png_warning and abandon chunk. + Changed sCAL and iCCP failures from png_error to png_warning and abandon. + Added png_get_uint_31(png_ptr, buf) function. + Added PNG_UINT_32_MAX macro. + Renamed PNG_MAX_UINT to PNG_UINT_31_MAX. + Made png_zalloc() issue a png_warning and return NULL on potential + overflow. + Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x + Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4. + Revised Borland portion of png_malloc() to return NULL or issue + png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK. + Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove + sequential read support. + Added some "#if PNG_WRITE_SUPPORTED" blocks. + #ifdef'ed out some redundancy in png_malloc_default(). + Use png_malloc instead of png_zalloc to allocate the pallete. +version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004] + Fixed buffer overflow vulnerability in png_handle_tRNS() + Fixed integer arithmetic overflow vulnerability in png_read_png(). + Fixed some harmless bugs in png_handle_sBIT, etc, that would cause + duplicate chunk types to go undetected. + Fixed some timestamps in the -config version + Rearranged order of processing of color types in png_handle_tRNS(). + Added ROWBYTES macro to calculate rowbytes without integer overflow. + Updated makefile.darwin and removed makefile.macosx from scripts directory. + Imposed default one million column, one-million row limits on the image + dimensions, and added png_set_user_limits() function to override them. + Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro. + Fixed wrong cast of returns from png_get_user_width|height_max(). + Changed some "keep the compiler happy" from empty statements to returns, + Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution +version 1.0.16rc2 and 1.2.6rc2 [August 7, 2004] + Revised makefile.darwin and makefile.solaris. Removed makefile.macosx. + Revised pngtest's png_debug_malloc() to use png_malloc() instead of + png_malloc_default() which is not supposed to be exported. + Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in + pngpread.c. Bug was introduced in 1.2.6rc1. + Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1. + Fixed old bug in RGB to Gray transformation. + Fixed problem with 64-bit compilers by casting arguments to abs() + to png_int_32. + Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9). + Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin) + Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles. + Added code to update the row_info->colortype in png_do_read_filler() (MSB). +version 1.0.16rc3 and 1.2.6rc3 [August 9, 2004] + Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid + trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro. + Revised documentation of png_set_keep_unknown_chunks(). + Check handle_as_unknown status in pngpread.c, as in pngread.c previously. + Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h + Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c +version 1.0.16rc4 and 1.2.6rc4 [August 10, 2004] + Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of + "pinfo" was out of place). +version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004] + Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED + section of png.h where they were inadvertently placed in version rc3. + +version 1.0.16 and 1.2.6 [August 15, 2004] + Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1. +version 1.2.7beta1 [August 26, 2004] + Removed unused pngasmrd.h file. + Removed references to uu.net for archived files. Added references to + PNG Spec (second edition) and the PNG ISO/IEC Standard. + Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR. + Fixed bug with "optimized window size" in the IDAT datastream, that + causes libpng to write PNG files with incorrect zlib header bytes. +version 1.2.7beta2 [August 28, 2004] + Fixed bug with sCAL chunk and big-endian machines (David Munro). + Undid new code added in 1.2.6rc2 to update the color_type in + png_set_filler(). + Added png_set_add_alpha() that updates color type. +version 1.0.17rc1 and 1.2.7rc1 [September 4, 2004] + Revised png_set_strip_filler() to not remove alpha if color_type has alpha. +version 1.0.17 and 1.2.7 [September 12, 2004] + Added makefile.hp64 + Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin + Send comments/corrections/commendations to -png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu +png-implement@ccrc.wustl.edu (subscription required; write to +majordomo@ccrc.wustl.edu with "subscribe png-implement" in the message) +or to glennrp@users.sourceforge.net Glenn R-P