| 1 |
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| 2 | CHANGES - changes for libpng
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| 3 |
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| 4 | version 0.2
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| 5 | added reader into png.h
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| 6 | fixed small problems in stub file
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| 7 | version 0.3
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| 8 | added pull reader
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| 9 | split up pngwrite.c to several files
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| 10 | added pnglib.txt
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| 11 | added example.c
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| 12 | cleaned up writer, adding a few new tranformations
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| 13 | fixed some bugs in writer
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| 14 | interfaced with zlib 0.5
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| 15 | added K&R support
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| 16 | added check for 64 KB blocks for 16 bit machines
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| 17 | version 0.4
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| 18 | cleaned up code and commented code
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| 19 | simplified time handling into png_time
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| 20 | created png_color_16 and png_color_8 to handle color needs
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| 21 | cleaned up color type defines
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| 22 | fixed various bugs
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| 23 | made various names more consistant
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| 24 | interfaced with zlib 0.71
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| 25 | cleaned up zTXt reader and writer (using zlib's Reset functions)
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| 26 | split transformations into pngrtran.c and pngwtran.c
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| 27 | version 0.5
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| 28 | interfaced with zlib 0.8
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| 29 | fixed many reading and writing bugs
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| 30 | saved using 3 spaces instead of tabs
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| 31 | version 0.6
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| 32 | added png_large_malloc() and png_large_free()
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| 33 | added png_size_t
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| 34 | cleaned up some compiler warnings
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| 35 | added png_start_read_image()
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| 36 | version 0.7
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| 37 | cleaned up lots of bugs
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| 38 | finished dithering and other stuff
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| 39 | added test program
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| 40 | changed name from pnglib to libpng
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| 41 | version 0.71 [June, 1995]
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| 42 | changed pngtest.png for zlib 0.93
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| 43 | fixed error in libpng.txt and example.c
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| 44 | version 0.8
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| 45 | cleaned up some bugs
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| 46 | added png_set_filler()
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| 47 | split up pngstub.c into pngmem.c, pngio.c, and pngerror.c
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| 48 | added #define's to remove unwanted code
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| 49 | moved png_info_init() to png.c
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| 50 | added old_size into png_realloc()
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| 51 | added functions to manually set filtering and compression info
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| 52 | changed compression parameters based on image type
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| 53 | optimized filter selection code
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| 54 | added version info
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| 55 | changed external functions passing floats to doubles (k&r problems?)
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| 56 | put all the configurable stuff in pngconf.h
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| 57 | enabled png_set_shift to work with paletted images on read
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| 58 | added png_read_update_info() - updates info structure with
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| 59 | transformations
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| 60 | version 0.81 [August, 1995]
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| 61 | incorporated Tim Wegner's medium model code (thanks, Tim)
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| 62 | version 0.82 [September, 1995]
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| 63 | [unspecified changes]
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| 64 | version 0.85 [December, 1995]
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| 65 | added more medium model code (almost everything's a far)
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| 66 | added i/o, error, and memory callback functions
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| 67 | fixed some bugs (16 bit, 4 bit interlaced, etc.)
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| 68 | added first run progressive reader (barely tested)
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| 69 | version 0.86 [January, 1996]
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| 70 | fixed bugs
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| 71 | improved documentation
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| 72 | version 0.87 [January, 1996]
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| 73 | fixed medium model bugs
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| 74 | fixed other bugs introduced in 0.85 and 0.86
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| 75 | added some minor documentation
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| 76 | version 0.88 [January, 1996]
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| 77 | fixed progressive bugs
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| 78 | replaced tabs with spaces
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| 79 | cleaned up documentation
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| 80 | added callbacks for read/write and warning/error functions
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| 81 | version 0.89 [July, 1996]
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| 82 | added new initialization API to make libpng work better with shared libs
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| 83 | we now have png_create_read_struct(), png_create_write_struct(),
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| 84 | png_create_info_struct(), png_destroy_read_struct(), and
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| 85 | png_destroy_write_struct() instead of the separate calls to
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| 86 | malloc and png_read_init(), png_info_init(), and png_write_init()
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| 87 | changed warning/error callback functions to fix bug - this means you
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| 88 | should use the new initialization API if you were using the old
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| 89 | png_set_message_fn() calls, and that the old API no longer exists
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| 90 | so that people are aware that they need to change their code
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| 91 | changed filter selection API to allow selection of multiple filters
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| 92 | since it didn't work in previous versions of libpng anyways
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| 93 | optimized filter selection code
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| 94 | fixed png_set_background() to allow using an arbitrary RGB color for
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| 95 | paletted images
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| 96 | fixed gamma and background correction for paletted images, so
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| 97 | png_correct_palette is not needed unless you are correcting an
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| 98 | external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED
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| 99 | in pngconf.h) - if nobody uses this, it may disappear in the future.
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| 100 | fixed bug with Borland 64K memory allocation (Alexander Lehmann)
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| 101 | fixed bug in interlace handling (Smarasderagd, I think)
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| 102 | added more error checking for writing and image to reduce invalid files
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| 103 | separated read and write functions so that they won't both be linked
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| 104 | into a binary when only reading or writing functionality is used
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| 105 | new pngtest image also has interlacing and zTXt
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| 106 | updated documentation to reflect new API
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| 107 | version 0.90 [January, 1997]
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| 108 | made CRC errors/warnings on critical and ancillary chunks configurable
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| 109 | libpng will use the zlib CRC routines by (compile-time) default
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| 110 | changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner)
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| 111 | added external C++ wrapper statements to png.h (Gilles Dauphin)
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| 112 | allow PNG file to be read when some or all of file signature has already
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| 113 | been read from the beginning of the stream. ****This affects the size
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| 114 | of info_struct and invalidates all programs that use a shared libpng****
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| 115 | fixed png_filler() declarations
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| 116 | fixed? background color conversions
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| 117 | fixed order of error function pointers to match documentation
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| 118 | current chunk name is now available in png_struct to reduce the number
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| 119 | of nearly identical error messages (will simplify multi-lingual
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| 120 | support when available)
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| 121 | try to get ready for unknown-chunk callback functions:
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| 122 | - previously read critical chunks are flagged, so the chunk handling
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| 123 | routines can determine if the chunk is in the right place
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| 124 | - all chunk handling routines have the same prototypes, so we will
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| 125 | be able to handle all chunks via a callback mechanism
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| 126 | try to fix Linux "setjmp" buffer size problems
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| 127 | removed png_large_malloc, png_large_free, and png_realloc functions.
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| 128 | version 0.95 [March, 1997]
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| 129 | fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never
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| 130 | fixed bug in PNG file signature compares when start != 0
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| 131 | changed parameter type of png_set_filler(...filler...) from png_byte
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| 132 | to png_uint_32
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| 133 | added test for MACOS to ensure that both math.h and fp.h are not #included
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| 134 | added macros for libpng to be compiled as a Windows DLL (Andreas Kupries)
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| 135 | added "packswap" transformation, which changes the endianness of
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| 136 | packed-pixel bytes (Kevin Bracey)
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| 137 | added "strip_alpha" transformation, which removes the alpha channel of
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| 138 | input images without using it (not neccesarily a good idea)
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| 139 | added "swap_alpha" transformation, which puts the alpha channel in front
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| 140 | of the color bytes instead of after
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| 141 | removed all implicit variable tests which assume NULL == 0 (I think)
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| 142 | changed several variables to "png_size_t" to show 16/32-bit limitations
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| 143 | added new pCAL chunk read/write support
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| 144 | added experimental filter selection weighting (Greg Roelofs)
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| 145 | removed old png_set_rgbx() and png_set_xrgb() functions that have been
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| 146 | obsolete for about 2 years now (use png_set_filler() instead)
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| 147 | added macros to read 16- and 32-bit ints directly from buffer, to be
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| 148 | used only on those systems that support it (namely PowerPC and 680x0)
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| 149 | With some testing, this may become the default for MACOS/PPC systems.
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| 150 | only calculate CRC on data if we are going to use it
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| 151 | added macros for zTXt compression type PNG_zTXt_COMPRESSION_???
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| 152 | added macros for simple libpng debugging output selectable at compile time
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| 153 | removed PNG_READ_END_MODE in progressive reader (Smarasderagd)
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| 154 | more description of info_struct in libpng.txt and png.h
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| 155 | more instructions in example.c
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| 156 | more chunk types tested in pngtest.c
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| 157 | renamed pngrcb.c to pngset.c, and all png_read_<chunk> functions to be
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| 158 | png_set_<chunk>. We now have corresponding png_get_<chunk>
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| 159 | functions in pngget.c to get infomation in info_ptr. This isolates
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| 160 | the application from the internal organization of png_info_struct
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| 161 | (good for shared library implementations).
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| 162 | version 0.96 [May, 1997]
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| 163 | fixed serious bug with < 8bpp images introduced in 0.95
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| 164 | fixed 256-color transparency bug (Greg Roelofs)
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| 165 | fixed up documentation (Greg Roelofs, Laszlo Nyul)
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| 166 | fixed "error" in pngconf.h for Linux setjmp() behaviour
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| 167 | fixed DOS medium model support (Tim Wegner)
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| 168 | fixed png_check_keyword() for case with error in static string text
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| 169 | added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul)
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| 170 | added typecasts to quiet compiler errors
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| 171 | added more debugging info
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| 172 | version 0.97 [January, 1998]
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| 173 | removed PNG_USE_OWN_CRC capability
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| 174 | relocated png_set_crc_action from pngrutil.c to pngrtran.c
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| 175 | fixed typecasts of "new_key", etc. (Andreas Dilger)
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| 176 | added RFC 1152 [sic] date support
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| 177 | fixed bug in gamma handling of 4-bit grayscale
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| 178 | added 2-bit grayscale gamma handling (Glenn R-P)
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| 179 | added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P)
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| 180 | minor corrections in libpng.txt
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| 181 | added simple sRGB support (Glenn R-P)
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| 182 | easier conditional compiling, e.g. define PNG_READ/WRITE_NOT_FULLY_SUPPORTED;
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| 183 | all configurable options can be selected from command-line instead
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| 184 | of having to edit pngconf.h (Glenn R-P)
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| 185 | fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P)
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| 186 | added more conditions for png_do_background, to avoid changing
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| 187 | black pixels to background when a background is supplied and
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| 188 | no pixels are transparent
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| 189 | repaired PNG_NO_STDIO behaviour
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| 190 | tested NODIV support and made it default behaviour (Greg Roelofs)
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| 191 | added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler)
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| 192 | regularized version numbering scheme and bumped shared-library major
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| 193 | version number to 2 to avoid problems with libpng 0.89 apps (Greg Roelofs)
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| 194 | version 0.98 [January, 1998]
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| 195 | cleaned up some typos in libpng.txt and in code documentation
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| 196 | fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler)
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| 197 | cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c
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| 198 | changed recommendation about file_gamma for PC images to .51 from .45,
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| 199 | in example.c and libpng.txt, added comments to distinguish between
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| 200 | screen_gamma, viewing_gamma, and display_gamma.
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| 201 | changed all references to RFC1152 to read RFC1123 and changed the
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| 202 | PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED
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| 203 | added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent)
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| 204 | changed srgb_intent from png_byte to int to avoid compiler bugs
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| 205 | version 0.99 [January 30, 1998]
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| 206 | free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler)
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| 207 | fixed a longstanding "packswap" bug in pngtrans.c
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| 208 | fixed some inconsistencies in pngconf.h that prevented compiling with
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| 209 | PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined
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| 210 | fixed some typos and made other minor rearrangement of libpng.txt (Andreas)
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| 211 | changed recommendation about file_gamma for PC images to .50 from .51 in
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| 212 | example.c and libpng.txt, and changed file_gamma for sRGB images to .45
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| 213 | added a number of functions to access information from the png structure
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| 214 | png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit)
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| 215 | added TARGET_MACOS similar to zlib-1.0.8
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| 216 | define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined
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| 217 | added type casting to all png_malloc() function calls
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| 218 | version 0.99a [January 31, 1998]
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| 219 | Added type casts and parentheses to all returns that return a value.(Tim W.)
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| 220 | version 0.99b [February 4, 1998]
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| 221 | Added type cast png_uint_32 on malloc function calls where needed.
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| 222 | Changed type of num_hist from png_uint_32 to int (same as num_palette).
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| 223 | Added checks for rowbytes overflow, in case png_size_t is less than 32 bits.
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| 224 | Renamed makefile.elf to makefile.lnx.
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| 225 | version 0.99c [February 7, 1998]
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| 226 | More type casting. Removed erroneous overflow test in pngmem.c.
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| 227 | Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes.
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| 228 | Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5.
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| 229 | version 0.99d [February 11, 1998]
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| 230 | Renamed "far_to_near()" "png_far_to_near()"
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| 231 | Revised libpng.3
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| 232 | Version 99c "buffered" operations didn't work as intended. Replaced them
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| 233 | with png_memcpy_check() and png_memset_check().
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| 234 | Added many "if (png_ptr == NULL) return" to quell compiler warnings about
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| 235 | unused png_ptr, mostly in pngget.c and pngset.c.
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| 236 | Check for overlength tRNS chunk present when indexed-color PLTE is read.
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| 237 | Cleaned up spelling errors in libpng.3/libpng.txt
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| 238 | Corrected a problem with png_get_tRNS() which returned undefined trans array
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| 239 | version 0.99e [February 28, 1998]
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| 240 | Corrected png_get_tRNS() again.
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| 241 | Add parentheses for easier reading of pngget.c, fixed "||" should be "&&".
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| 242 | Touched up example.c to make more of it compileable, although the entire
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| 243 | file still can't be compiled (Willem van Schaik)
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| 244 | Fixed a bug in png_do_shift() (Bryan Tsai)
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| 245 | Added a space in png.h prototype for png_write_chunk_start()
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| 246 | Replaced pngtest.png with one created with zlib 1.1.1
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| 247 | Changed pngtest to report PASS even when file size is different (Jean-loup G.)
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| 248 | Corrected some logic errors in png_do_invert_alpha() (Chris Patterson)
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| 249 | version 0.99f [March 5, 1998]
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| 250 | Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey)
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| 251 | Moved makefiles into a "scripts" directory, and added INSTALL instruction file
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| 252 | Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok)
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| 253 | Added pointers to "note on libpng versions" in makefile.lnx and README
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| 254 | Added row callback feature when reading and writing nonprogressive rows
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| 255 | and added a test of this feature in pngtest.c
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| 256 | Added user transform callbacks, with test of the feature in pngtest.c
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| 257 | version 0.99g [March 6, 1998, morning]
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| 258 | Minor changes to pngtest.c to suppress compiler warnings.
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| 259 | Removed "beta" language from documentation.
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| 260 | version 0.99h [March 6, 1998, evening]
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| 261 | Minor changes to previous minor changes to pngtest.c
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| 262 | Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED
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| 263 | and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro
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| 264 | Added user transform capability
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| 265 | version 1.00 [March 7, 1998]
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| 266 | Changed several typedefs in pngrutil.c
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| 267 | Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik)
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| 268 | replaced "while(1)" with "for(;;)"
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| 269 | added PNGARG() to prototypes in pngtest.c and removed some prototypes
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| 270 | updated some of the makefiles (Tom Lane)
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| 271 | changed some typedefs (s_start, etc.) in pngrutil.c
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| 272 | fixed dimensions of "short_months" array in pngwrite.c
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| 273 | Replaced ansi2knr.c with the one from jpeg-v6
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| 274 | version 1.0.0 [March 8, 1998]
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| 275 | Changed name from 1.00 to 1.0.0 (Adam Costello)
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| 276 | Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert)
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| 277 | version 1.0.0a [March 9, 1998]
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| 278 | Fixed three bugs in pngrtran.c to make gamma+background handling consistent
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| 279 | (Greg Roelofs)
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| 280 | Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz
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| 281 | for major, minor, and bugfix releases. This is 10001. (Adam Costello,
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| 282 | Tom Lane)
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| 283 | Make months range from 1-12 in png_convert_to_rfc1123
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| 284 | version 1.0.0b [March 13, 1998]
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| 285 | Quieted compiler complaints about two empty "for" loops in pngrutil.c
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| 286 | Minor changes to makefile.s2x
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| 287 | Removed #ifdef/#endif around a png_free() in pngread.c
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| 288 | version 1.0.1 [March 14, 1998]
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| 289 | Changed makefile.s2x to reduce security risk of using a relative pathname
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| 290 | Fixed some typos in the documentation (Greg).
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| 291 | Fixed a problem with value of "channels" returned by png_read_update_info()
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| 292 | version 1.0.1a [April 21, 1998]
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| 293 | Optimized Paeth calculations by replacing abs() function calls with intrinsics
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| 294 | plus other loop optimizations. Improves avg decoding speed by about 20%.
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| 295 | Commented out i386istic "align" compiler flags in makefile.lnx.
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| 296 | Reduced the default warning level in some makefiles, to make them consistent.
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| 297 | Removed references to IJG and JPEG in the ansi2knr.c copyright statement.
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| 298 | Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation.
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| 299 | Added grayscale and 16-bit capability to png_do_read_filler().
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| 300 | Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes
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| 301 | too large when writing an image with bit_depth < 8 (Bob Dellaca).
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| 302 | Corrected some bugs in the experimental weighted filtering heuristics.
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| 303 | Moved a misplaced pngrutil code block that truncates tRNS if it has more
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| 304 | than num_palette entries -- test was done before num_palette was defined.
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| 305 | Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins).
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| 306 | Changed compiler flags in makefile.wat for better optimization (Pawel Mrochen).
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| 307 | version 1.0.1b [May 2, 1998]
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| 308 | Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg).
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| 309 | Relocated the png_composite macros from pngrtran.c to png.h (Greg).
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| 310 | Added makefile.sco (contributed by Mike Hopkirk).
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| 311 | Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a.
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| 312 | Fixed a bug in pngrtran.c that would set channels=5 under some circumstances.
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| 313 | More work on the Paeth-filtering, achieving imperceptible speedup (A Kleinert).
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| 314 | More work on loop optimization which may help when compiled with C++ compilers.
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| 315 | Added warnings when people try to use transforms they've defined out.
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| 316 | Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran.
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| 317 | Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg)
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| 318 | version 1.0.1c [May 11, 1998]
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| 319 | Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for
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| 320 | filler bytes should have been 0xff instead of 0xf.
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| 321 | Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images.
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| 322 | Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED
|
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| 323 | out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h
|
|---|
| 324 | Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED,
|
|---|
| 325 | for consistency, in pngconf.h
|
|---|
| 326 | Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier
|
|---|
| 327 | to remove unwanted capabilities via the compile line
|
|---|
| 328 | Made some corrections to grammar (which, it's) in documentation (Greg).
|
|---|
| 329 | Corrected example.c, use of row_pointers in png_write_image().
|
|---|
| 330 | version 1.0.1d [May 24, 1998]
|
|---|
| 331 | Corrected several statements that used side effects illegally in pngrutil.c
|
|---|
| 332 | and pngtrans.c, that were introduced in version 1.0.1b
|
|---|
| 333 | Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert)
|
|---|
| 334 | More corrections to example.c, use of row_pointers in png_write_image()
|
|---|
| 335 | and png_read_rows().
|
|---|
| 336 | Added pngdll.mak and pngdef.pas to scripts directory, contributed by
|
|---|
| 337 | Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5
|
|---|
| 338 | Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.)
|
|---|
| 339 | Changed several loops from count-down to count-up, for consistency.
|
|---|
| 340 | version 1.0.1e [June 6, 1998]
|
|---|
| 341 | Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and
|
|---|
| 342 | added warnings when people try to set png_read_fn and png_write_fn in
|
|---|
| 343 | the same structure.
|
|---|
| 344 | Added a test such that png_do_gamma will be done when num_trans==0
|
|---|
| 345 | for truecolor images that have defined a background. This corrects an
|
|---|
| 346 | error that was introduced in libpng-0.90 that can cause gamma processing
|
|---|
| 347 | to be skipped.
|
|---|
| 348 | Added tests in png.h to include "trans" and "trans_values" in structures
|
|---|
| 349 | when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined.
|
|---|
| 350 | Add png_free(png_ptr->time_buffer) in png_destroy_read_struct()
|
|---|
| 351 | Moved png_convert_to_rfc_1123() from pngwrite.c to png.c
|
|---|
| 352 | Added capability for user-provided malloc_fn() and free_fn() functions,
|
|---|
| 353 | and revised pngtest.c to demonstrate their use, replacing the
|
|---|
| 354 | PNGTEST_DEBUG_MEM feature.
|
|---|
| 355 | Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner).
|
|---|
| 356 | version 1.0.2 [June 14, 1998]
|
|---|
| 357 | Fixed two bugs in makefile.bor .
|
|---|
| 358 | version 1.0.2a [December 30, 1998]
|
|---|
| 359 | Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
|
|---|
| 360 | Fixed a bug in png_do_filler() that made it fail to write filler bytes in
|
|---|
| 361 | the left-most pixel of each row (Kevin Bracey).
|
|---|
| 362 | Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
|
|---|
| 363 | in pngtest.c (Duncan Simpson).
|
|---|
| 364 | Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
|
|---|
| 365 | even when no tIME chunk was present in the source file.
|
|---|
| 366 | Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
|
|---|
| 367 | Fixed a problem in png_read_push_finish_row(), which would not skip some
|
|---|
| 368 | passes that it should skip, for images that are less than 3 pixels high.
|
|---|
| 369 | Interchanged the order of calls to png_do_swap() and png_do_shift()
|
|---|
| 370 | in pngwtran.c (John Cromer).
|
|---|
| 371 | Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h .
|
|---|
| 372 | Changed "bad adaptive filter type" from error to warning in pngrutil.c .
|
|---|
| 373 | Fixed a documentation error about default filtering with 8-bit indexed-color.
|
|---|
| 374 | Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO
|
|---|
| 375 | (L. Peter Deutsch).
|
|---|
| 376 | Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
|
|---|
| 377 | Added png_get_copyright() and png_get_header_version() functions.
|
|---|
| 378 | Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c
|
|---|
| 379 | Added information about debugging in libpng.txt and libpng.3 .
|
|---|
| 380 | Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and makefile.sco.
|
|---|
| 381 | Removed lines after Dynamic Dependencies" in makefile.aco .
|
|---|
| 382 | Revised makefile.dec to make a shared library (Jeremie Petit).
|
|---|
| 383 | Removed trailing blanks from all files.
|
|---|
| 384 | version 1.0.2a [January 6, 1999]
|
|---|
| 385 | Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
|
|---|
| 386 | Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
|
|---|
| 387 | Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
|
|---|
| 388 | Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
|
|---|
| 389 | which is obsolete.
|
|---|
| 390 | version 1.0.3 [January 14, 1999]
|
|---|
| 391 | Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
|
|---|
| 392 | Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO.
|
|---|
| 393 | version 1.0.3a [August 12, 1999]
|
|---|
| 394 | Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning
|
|---|
| 395 | if an attempt is made to read an interlaced image when it's not supported.
|
|---|
| 396 | Added check if png_ptr->trans is defined before freeing it in pngread.c
|
|---|
| 397 | Modified the Y2K statement to include versions back to version 0.71
|
|---|
| 398 | Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c
|
|---|
| 399 | Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments)
|
|---|
| 400 | Replaced leading blanks with tab characters in makefile.hux
|
|---|
| 401 | Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents.
|
|---|
| 402 | Changed (float)red and (float)green to (double)red, (double)green
|
|---|
| 403 | in png_set_rgb_to_gray() to avoid "promotion" problems in AIX.
|
|---|
| 404 | Fixed a bug in pngconf.h that omitted <stdio.h> when PNG_DEBUG==0 (K Bracey).
|
|---|
| 405 | Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt).
|
|---|
| 406 | Updated documentation to refer to the PNG-1.2 specification.
|
|---|
| 407 | Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c
|
|---|
| 408 | in makefile.knr, INSTALL, and README (L. Peter Deutsch)
|
|---|
| 409 | Fixed bugs in calculation of the length of rowbytes when adding alpha
|
|---|
| 410 | channels to 16-bit images, in pngrtran.c (Chris Nokleberg)
|
|---|
| 411 | Added function png_set_user_transform_info() to store user_transform_ptr,
|
|---|
| 412 | user_depth, and user_channels into the png_struct, and a function
|
|---|
| 413 | png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg)
|
|---|
| 414 | Added function png_set_empty_plte_permitted() to make libpng useable
|
|---|
| 415 | in MNG applications.
|
|---|
| 416 | Corrected the typedef for png_free_ptr in png.h (Jesse Jones).
|
|---|
| 417 | Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be
|
|---|
| 418 | consistent with PNG-1.2, and allow variance of 500 before complaining.
|
|---|
| 419 | Added assembler code contributed by Intel in file pngvcrd.c and modified
|
|---|
| 420 | makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation, Gilles Vollant)
|
|---|
| 421 | Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy.
|
|---|
| 422 | Added some aliases for png_set_expand() in pngrtran.c, namely
|
|---|
| 423 | png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS()
|
|---|
| 424 | (Greg Roelofs, in "PNG: The Definitive Guide").
|
|---|
| 425 | Added makefile.beo for BEOS on X86, contributed by Sander Stok.
|
|---|
| 426 | version 1.0.3b [August 26, 1999]
|
|---|
| 427 | Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h
|
|---|
| 428 | Changed leading blanks to tabs in all makefiles.
|
|---|
| 429 | Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code.
|
|---|
| 430 | Made alternate versions of png_set_expand() in pngrtran.c, namely
|
|---|
| 431 | png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha
|
|---|
| 432 | (Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases.
|
|---|
| 433 | Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h
|
|---|
| 434 | Revised calculation of num_blocks in pngmem.c to avoid a potentially
|
|---|
| 435 | negative shift distance, whose results are undefined in the C language.
|
|---|
| 436 | Added a check in pngset.c to prevent writing multiple tIME chunks.
|
|---|
| 437 | Added a check in pngwrite.c to detect invalid small window_bits sizes.
|
|---|
| 438 | version 1.0.3d [September 4, 1999]
|
|---|
| 439 | Fixed type casting of igamma in pngrutil.c
|
|---|
| 440 | Added new png_expand functions to scripts/pngdef.pas and pngos2.def
|
|---|
| 441 | Added a demo read_user_transform_fn that examines the row filters in pngtest.c
|
|---|
| 442 | version 1.0.4 [September 24, 1999]
|
|---|
| 443 | Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined
|
|---|
| 444 | Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h
|
|---|
| 445 | Made several minor corrections to pngtest.c
|
|---|
| 446 | Renamed the makefiles with longer but more user friendly extensions.
|
|---|
| 447 | Copied the PNG copyright and license to a separate LICENSE file.
|
|---|
| 448 | Revised documentation, png.h, and example.c to remove reference to
|
|---|
| 449 | "viewing_gamma" which no longer appears in the PNG specification.
|
|---|
| 450 | Revised pngvcrd.c to use MMX code for interlacing only on the final pass.
|
|---|
| 451 | Updated pngvcrd.c to use the faster C filter algorithms from libpng-1.0.1a
|
|---|
| 452 | Split makefile.win32vc into two versions, makefile.vcawin32 (uses MMX
|
|---|
| 453 | assembler code) and makefile.vcwin32 (doesn't).
|
|---|
| 454 | Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING)
|
|---|
| 455 | Added a copy of pngnow.png to the distribution.
|
|---|
| 456 | version 1.0.4a [September 25, 1999]
|
|---|
| 457 | Increase max_pixel_depth in pngrutil.c if a user transform needs it.
|
|---|
| 458 | Changed several division operations to right-shifts in pngvcrd.c
|
|---|
| 459 | version 1.0.4b [September 30, 1999]
|
|---|
| 460 | Added parentheses in line 3732 of pngvcrd.c
|
|---|
| 461 | Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1
|
|---|
| 462 | version 1.0.4c [October 1, 1999]
|
|---|
| 463 | Added a "png_check_version" function in png.c and pngtest.c that will generate
|
|---|
| 464 | a helpful compiler error if an old png.h is found in the search path.
|
|---|
| 465 | Changed type of png_user_transform_depth|channels from int to png_byte.
|
|---|
| 466 | version 1.0.4d [October 6, 1999]
|
|---|
| 467 | Changed 0.45 to 0.45455 in png_set_sRGB()
|
|---|
| 468 | Removed unused PLTE entries from pngnow.png
|
|---|
| 469 | Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly.
|
|---|
| 470 | version 1.0.4e [October 10, 1999]
|
|---|
| 471 | Fixed sign error in pngvcrd.c (Greg Roelofs)
|
|---|
| 472 | Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P)
|
|---|
| 473 | version 1.0.4f [October 15, 1999]
|
|---|
| 474 | Surrounded example.c code with #if 0 .. #endif to prevent people from
|
|---|
| 475 | inadvertently trying to compile it.
|
|---|
| 476 | Changed png_get_header_version() from a function to a macro in png.h
|
|---|
| 477 | Added type casting mostly in pngrtran.c and pngwtran.c
|
|---|
| 478 | Removed some pointless "ptr = NULL" in pngmem.c
|
|---|
| 479 | Added a "contrib" directory containing the source code from Greg's book.
|
|---|
| 480 | version 1.0.5 [October 15, 1999]
|
|---|
| 481 | Minor editing of the INSTALL and README files.
|
|---|
| 482 | version 1.0.5a [October 23, 1999]
|
|---|
| 483 | Added contrib/pngsuite and contrib/pngminus (Willem van Schaik)
|
|---|
| 484 | Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans)
|
|---|
| 485 | Further optimization and bugfix of pngvcrd.c
|
|---|
| 486 | Revised pngset.c so that it does not allocate or free memory in the user's
|
|---|
| 487 | text_ptr structure. Instead, it makes its own copy.
|
|---|
| 488 | Created separate write_end_info_struct in pngtest.c for a more severe test.
|
|---|
| 489 | Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak.
|
|---|
| 490 | version 1.0.5b [November 23, 1999]
|
|---|
| 491 | Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and
|
|---|
| 492 | PNG_FLAG_WROTE_tIME from flags to mode.
|
|---|
| 493 | Added png_write_info_before_PLTE() function.
|
|---|
| 494 | Fixed some typecasting in contrib/gregbook/*.c
|
|---|
| 495 | Updated scripts/makevms.com and added makevms.com to contrib/gregbook
|
|---|
| 496 | and contrib/pngminus (Martin Zinser)
|
|---|
| 497 | version 1.0.5c [November 26, 1999]
|
|---|
| 498 | Moved png_get_header_version from png.h to png.c, to accomodate ansi2knr.
|
|---|
| 499 | Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to
|
|---|
| 500 | accomodate making DLL's: Moved usr_png_ver from global variable to function
|
|---|
| 501 | png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and
|
|---|
| 502 | eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays
|
|---|
| 503 | into pngtypes.h. Eliminated use of global png_pass arrays. Declared the
|
|---|
| 504 | png_CHNK and png_pass arrays to be "const". Made the global arrays
|
|---|
| 505 | available to applications (although none are used in libpng itself) when
|
|---|
| 506 | PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined.
|
|---|
| 507 | Removed some extraneous "-I" from contrib/pngminus/makefile.std
|
|---|
| 508 | Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2.
|
|---|
| 509 | Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3
|
|---|
| 510 | version 1.0.5d [November 29, 1999]
|
|---|
| 511 | Add type cast (png_const_charp) two places in png.c
|
|---|
| 512 | Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays.
|
|---|
| 513 | Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available
|
|---|
| 514 | to applications a macro "PNG_USE_LOCAL_ARRAYS".
|
|---|
| 515 | #ifdef out all the new declarations when PNG_USE_GLOBAL_ARRAYS is defined.
|
|---|
| 516 | Added PNG_EXPORT_VAR macro to accommodate making DLL's.
|
|---|
| 517 | version 1.0.5e [November 30, 1999]
|
|---|
| 518 | Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text
|
|---|
| 519 | structure; refactored the inflate/deflate support to make adding new chunks
|
|---|
| 520 | with trailing compressed parts easier in the future, and added new functions
|
|---|
| 521 | png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP,
|
|---|
| 522 | png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond).
|
|---|
| 523 | NOTE: Applications that write text chunks MUST define png_text->lang
|
|---|
| 524 | before calling png_set_text(). It must be set to NULL if you want to
|
|---|
| 525 | write tEXt or zTXt chunks. If you want your application to be able to
|
|---|
| 526 | run with older versions of libpng, use
|
|---|
| 527 |
|
|---|
| 528 | #ifdef PNG_iTXt_SUPPORTED
|
|---|
| 529 | png_text[i].lang = NULL;
|
|---|
| 530 | #endif
|
|---|
| 531 |
|
|---|
| 532 | Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned
|
|---|
| 533 | offsets (Eric S. Raymond).
|
|---|
| 534 | Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into
|
|---|
| 535 | PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED
|
|---|
| 536 | macros, leaving the separate macros also available.
|
|---|
| 537 | Removed comments on #endifs at the end of many short, non-nested #if-blocks.
|
|---|
| 538 | version 1.0.5f [December 6, 1999]
|
|---|
| 539 | Changed makefile.solaris to issue a warning about potential problems when
|
|---|
| 540 | the ucb "ld" is in the path ahead of the ccs "ld".
|
|---|
| 541 | Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3.
|
|---|
| 542 | Added sCAL chunk support (Eric S. Raymond).
|
|---|
| 543 | version 1.0.5g [December 7, 1999]
|
|---|
| 544 | Fixed "png_free_spallettes" typo in png.h
|
|---|
| 545 | Added code to handle new chunks in pngpread.c
|
|---|
| 546 | Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block
|
|---|
| 547 | Added "translated_key" to png_text structure and png_write_iTXt().
|
|---|
| 548 | Added code in pngwrite.c to work around a newly discovered zlib bug.
|
|---|
| 549 | version 1.0.5h [December 10, 1999]
|
|---|
| 550 | NOTE: regarding the note for version 1.0.5e, the following must also
|
|---|
| 551 | be included in your code:
|
|---|
| 552 | png_text[i].translated_key = NULL;
|
|---|
| 553 | Unknown chunk handling is now supported.
|
|---|
| 554 | Option to eliminate all floating point support was added. Some new
|
|---|
| 555 | fixed-point functions such as png_set_gAMA_fixed() were added.
|
|---|
| 556 | Expanded tabs and removed trailing blanks in source files.
|
|---|
| 557 | version 1.0.5i [December 13, 1999]
|
|---|
| 558 | Added some type casts to silence compiler warnings.
|
|---|
| 559 | Renamed "png_free_spalette" to "png_free_spalettes" for consistency.
|
|---|
| 560 | Removed leading blanks from a #define in pngvcrd.c
|
|---|
| 561 | Added some parameters to the new png_set_keep_unknown_chunks() function.
|
|---|
| 562 | Added a test for up->location != 0 in the first instance of writing
|
|---|
| 563 | unknown chunks in pngwrite.c
|
|---|
| 564 | Changed "num" to "i" in png_free_spalettes() and png_free_unknowns() to
|
|---|
| 565 | prevent recursion.
|
|---|
| 566 | Added png_free_hIST() function.
|
|---|
| 567 | Various patches to fix bugs in the sCAL and integer cHRM processing,
|
|---|
| 568 | and to add some convenience macros for use with sCAL.
|
|---|
| 569 | version 1.0.5j [December 21, 1999]
|
|---|
| 570 | Changed "unit" parameter of png_write_sCAL from png_byte to int, to work
|
|---|
| 571 | around buggy compilers.
|
|---|
| 572 | Added new type "png_fixed_point" for integers that hold float*100000 values
|
|---|
| 573 | Restored backward compatibility of tEXt/zTXt chunk processing:
|
|---|
| 574 | Restored the first four members of png_text to the same order as v.1.0.5d.
|
|---|
| 575 | Added members "lang_key" and "itxt_length" to png_text struct. Set
|
|---|
| 576 | text_length=0 when "text" contains iTXt data. Use the "compression"
|
|---|
| 577 | member to distinguish among tEXt/zTXt/iTXt types. Added
|
|---|
| 578 | PNG_ITXT_COMPRESSION_NONE (1) and PNG_ITXT_COMPRESSION_zTXt(2) macros.
|
|---|
| 579 | The "Note" above, about backward incompatibility of libpng-1.0.5e, no
|
|---|
| 580 | longer applies.
|
|---|
| 581 | Fixed png_read|write_iTXt() to read|write parameters in the right order,
|
|---|
| 582 | and to write the iTXt chunk after IDAT if it appears in the end_ptr.
|
|---|
| 583 | Added pnggccrd.c, version of pngvcrd.c Intel assembler for gcc (Greg Roelofs)
|
|---|
| 584 | Reversed the order of trying to write floating-point and fixed-point gAMA.
|
|---|
| 585 | version 1.0.5k [December 27, 1999]
|
|---|
| 586 | Added many parentheses, e.g., "if (a && b & c)" becomes "if (a && (b & c))"
|
|---|
| 587 | Added png_handle_as_unknown() function (Glenn)
|
|---|
| 588 | Added png_free_chunk_list() function and chunk_list and num_chunk_list members
|
|---|
| 589 | of png_ptr.
|
|---|
| 590 | Eliminated erroneous warnings about multiple sPLT chunks and sPLT-after-PLTE.
|
|---|
| 591 | Fixed a libpng-1.0.5h bug in pngrutil.c that was issuing erroneous warnings
|
|---|
| 592 | about ignoring incorrect gAMA with sRGB (gAMA was in fact not ignored)
|
|---|
| 593 | Added png_free_tRNS(); png_set_tRNS() now malloc's its own trans array (ESR).
|
|---|
| 594 | Define png_get_int_32 when oFFs chunk is supported as well as when pCAL is.
|
|---|
| 595 | Changed type of proflen from png_int_32 to png_uint_32 in png_get_iCCP().
|
|---|
| 596 | version 1.0.5l [January 1, 2000]
|
|---|
| 597 | Added functions png_set_read_user_chunk_fn() and png_get_user_chunk_ptr()
|
|---|
| 598 | for setting a callback function to handle unknown chunks and for
|
|---|
| 599 | retrieving the associated user pointer (Glenn).
|
|---|
| 600 | version 1.0.5m [January 7, 2000]
|
|---|
| 601 | Added high-level functions png_read_png(), png_write_png(), png_free_pixels().
|
|---|
| 602 | version 1.0.5n [January 9, 2000]
|
|---|
| 603 | Added png_free_PLTE() function, and modified png_set_PLTE() to malloc its
|
|---|
| 604 | own memory for info_ptr->palette. This makes it safe for the calling
|
|---|
| 605 | application to free its copy of the palette any time after it calls
|
|---|
| 606 | png_set_PLTE().
|
|---|
| 607 | version 1.0.5o [January 20, 2000]
|
|---|
| 608 | Cosmetic changes only (removed some trailing blanks and TABs)
|
|---|
| 609 | version 1.0.5p [January 31, 2000]
|
|---|
| 610 | Renamed pngdll.mak to makefile.bd32
|
|---|
| 611 | Cosmetic changes in pngtest.c
|
|---|
| 612 | version 1.0.5q [February 5, 2000]
|
|---|
| 613 | Relocated the makefile.solaris warning about PATH problems.
|
|---|
| 614 | Fixed pngvcrd.c bug by pushing/popping registers in mmxsupport (Bruce Oberg)
|
|---|
| 615 | Revised makefile.gcmmx
|
|---|
| 616 | Added PNG_SETJMP_SUPPORTED, PNG_SETJMP_NOT_SUPPORTED, and PNG_ABORT() macros
|
|---|
| 617 | version 1.0.5r [February 7, 2000]
|
|---|
| 618 | Removed superfluous prototype for png_get_itxt from png.h
|
|---|
| 619 | Fixed a bug in pngrtran.c that improperly expanded the background color.
|
|---|
| 620 | Return *num_text=0 from png_get_text() when appropriate, and fix documentation
|
|---|
| 621 | of png_get_text() in libpng.txt/libpng.3.
|
|---|
| 622 | version 1.0.5s [February 18, 2000]
|
|---|
| 623 | Added "png_jmp_env()" macro to pngconf.h, to help people migrate to the
|
|---|
| 624 | new error handler that's planned for the next libpng release, and changed
|
|---|
| 625 | example.c, pngtest.c, and contrib programs to use this macro.
|
|---|
| 626 | Revised some of the DLL-export macros in pngconf.h (Greg Roelofs)
|
|---|
| 627 | Fixed a bug in png_read_png() that caused it to fail to expand some images
|
|---|
| 628 | that it should have expanded.
|
|---|
| 629 | Fixed some mistakes in the unused and undocumented INCH_CONVERSIONS functions
|
|---|
| 630 | in pngget.c
|
|---|
| 631 | Changed the allocation of palette, history, and trans arrays back to
|
|---|
| 632 | the version 1.0.5 method (linking instead of copying) which restores
|
|---|
| 633 | backward compatibility with version 1.0.5. Added some remarks about
|
|---|
| 634 | that in example.c. Added "free_me" member to info_ptr and png_ptr
|
|---|
| 635 | and added png_free_data() function.
|
|---|
| 636 | Updated makefile.linux and makefile.gccmmx to make directories conditionally.
|
|---|
| 637 | Made cosmetic changes to pngasmrd.h
|
|---|
| 638 | Added png_set_rows() and png_get_rows(), for use with png_read|write_png().
|
|---|
| 639 | Modified png_read_png() to allocate info_ptr->row_pointers only if it
|
|---|
| 640 | hasn't already been allocated.
|
|---|
| 641 | version 1.0.5t [March 4, 2000]
|
|---|
| 642 | Changed png_jmp_env() migration aiding macro to png_jmpbuf().
|
|---|
| 643 | Fixed "interlace" typo (should be "interlaced") in contrib/gregbook/read2-x.c
|
|---|
| 644 | Fixed bug with use of PNG_BEFORE_IHDR bit in png_ptr->mode, introduced when
|
|---|
| 645 | PNG_FLAG_HAVE_CHUNK_HEADER was moved into png_ptr->mode in version 1.0.5b
|
|---|
| 646 | Files in contrib/gregbook were revised to use png_jmpbuf() and to select
|
|---|
| 647 | a 24-bit visual if one is available, and to allow abbreviated options.
|
|---|
| 648 | Files in contrib/pngminus were revised to use the png_jmpbuf() macro.
|
|---|
| 649 | Removed spaces in makefile.linux and makefile.gcmmx, introduced in 1.0.5s
|
|---|
| 650 | version 1.0.5u [March 5, 2000]
|
|---|
| 651 | Simplified the code that detects old png.h in png.c and pngtest.c
|
|---|
| 652 | Renamed png_spalette (_p, _pp) to png_sPLT_t (_tp, _tpp)
|
|---|
| 653 | Increased precision of rgb_to_gray calculations from 8 to 15 bits and
|
|---|
| 654 | added png_set_rgb_to_gray_fixed() function.
|
|---|
| 655 | Added makefile.bc32 (32-bit Borland C++, C mode)
|
|---|
| 656 | version 1.0.5v [March 11, 2000]
|
|---|
| 657 | Added some parentheses to the png_jmpbuf macro definition.
|
|---|
| 658 | Updated references to the zlib home page, which has moved to freesoftware.com.
|
|---|
| 659 | Corrected bugs in documentation regarding png_read_row() and png_write_row().
|
|---|
| 660 | Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt.
|
|---|
| 661 | Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3,
|
|---|
| 662 | revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin)
|
|---|
| 663 | version 1.0.6 [March 20, 2000]
|
|---|
| 664 | Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c
|
|---|
| 665 | Added makefile.sggcc (SGI IRIX with gcc)
|
|---|
| 666 | version 1.0.6d [April 7, 2000]
|
|---|
| 667 | Changed sprintf() to strcpy() in png_write_sCAL_s() to work without STDIO
|
|---|
| 668 | Added data_length parameter to png_decompress_chunk() function
|
|---|
| 669 | Revised documentation to remove reference to abandoned png_free_chnk functions
|
|---|
| 670 | Fixed an error in png_rgb_to_gray_fixed()
|
|---|
| 671 | Revised example.c, usage of png_destroy_write_struct().
|
|---|
| 672 | Renamed makefile.ibmvac3 to makefile.ibmc, added libpng.icc IBM project file
|
|---|
| 673 | Added a check for info_ptr->free_me&PNG_FREE_TEXT when freeing text in png.c
|
|---|
| 674 | Simplify png_sig_bytes() function to remove use of non-ISO-C strdup().
|
|---|
| 675 | version 1.0.6e [April 9, 2000]
|
|---|
| 676 | Added png_data_freer() function.
|
|---|
| 677 | In the code that checks for over-length tRNS chunks, added check of
|
|---|
| 678 | info_ptr->num_trans as well as png_ptr->num_trans (Matthias Benckmann)
|
|---|
| 679 | Minor revisions of libpng.txt/libpng.3.
|
|---|
| 680 | Check for existing data and free it if the free_me flag is set, in png_set_*()
|
|---|
| 681 | and png_handle_*().
|
|---|
| 682 | Only define PNG_WEIGHTED_FILTERS_SUPPORTED when PNG_FLOATING_POINT_SUPPORTED
|
|---|
| 683 | is defined.
|
|---|
| 684 | Changed several instances of PNG_NO_CONSOLE_ID to PNG_NO_STDIO in pngrutil.c
|
|---|
| 685 | and mentioned the purposes of the two macros in libpng.txt/libpng.3.
|
|---|
| 686 | version 1.0.6f [April 14, 2000]
|
|---|
| 687 | Revised png_set_iCCP() and png_set_rows() to avoid prematurely freeing data.
|
|---|
| 688 | Add checks in png_set_text() for NULL members of the input text structure.
|
|---|
| 689 | Revised libpng.txt/libpng.3.
|
|---|
| 690 | Removed superfluous prototype for png_set_itxt from png.h
|
|---|
| 691 | Removed "else" from pngread.c, after png_error(), and changed "0" to "length".
|
|---|
| 692 | Changed several png_errors about malformed ancillary chunks to png_warnings.
|
|---|
| 693 | version 1.0.6g [April 24, 2000]
|
|---|
| 694 | Added png_pass-* arrays to pnggccrd.c when PNG_USE_LOCAL_ARRAYS is defined.
|
|---|
| 695 | Relocated paragraph about png_set_background() in libpng.3/libpng.txt
|
|---|
| 696 | and other revisions (Matthias Benckmann)
|
|---|
| 697 | Relocated info_ptr->free_me, png_ptr->free_me, and other info_ptr and
|
|---|
| 698 | png_ptr members to restore binary compatibility with libpng-1.0.5
|
|---|
| 699 | (breaks compatibility with libpng-1.0.6).
|
|---|
| 700 | version 1.0.6h [April 24, 2000]
|
|---|
| 701 | Changed shared library so-number pattern from 2.x.y.z to xy.z (this builds
|
|---|
| 702 | libpng.so.10 & libpng.so.10.6h instead of libpng.so.2 & libpng.so.2.1.0.6h)
|
|---|
| 703 | This is a temporary change for test purposes.
|
|---|
| 704 | version 1.0.6i [May 2, 2000]
|
|---|
| 705 | Rearranged some members at the end of png_info and png_struct, to put
|
|---|
| 706 | unknown_chunks_num and free_me within the original size of the png_structs
|
|---|
| 707 | and free_me, png_read_user_fn, and png_free_fn within the original png_info,
|
|---|
| 708 | because some old applications allocate the structs directly instead of
|
|---|
| 709 | using png_create_*().
|
|---|
| 710 | Added documentation of user memory functions in libpng.txt/libpng.3
|
|---|
| 711 | Modified png_read_png so that it will use user_allocated row_pointers
|
|---|
| 712 | if present, unless free_me directs that it be freed, and added description
|
|---|
| 713 | of the use of png_set_rows() and png_get_rows() in libpng.txt/libpng.3.
|
|---|
| 714 | Added PNG_LEGACY_SUPPORTED macro, and #ifdef out all new (since version
|
|---|
| 715 | 1.00) members of png_struct and png_info, to regain binary compatibility
|
|---|
| 716 | when you define this macro. Capabilities lost in this event
|
|---|
| 717 | are user transforms (new in version 1.0.0),the user transform pointer
|
|---|
| 718 | (new in version 1.0.2), rgb_to_gray (new in 1.0.5), iCCP, sCAL, sPLT,
|
|---|
| 719 | the high-level interface, and unknown chunks support (all new in 1.0.6).
|
|---|
| 720 | This was necessary because of old applications that allocate the structs
|
|---|
| 721 | directly as authors were instructed to do in libpng-0.88 and earlier,
|
|---|
| 722 | instead of using png_create_*().
|
|---|
| 723 | Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which
|
|---|
| 724 | can be used to detect codes that directly allocate the structs, and
|
|---|
| 725 | code to check these modes in png_read_init() and png_write_init() and
|
|---|
| 726 | generate a libpng error if the modes aren't set and PNG_LEGACY_SUPPORTED
|
|---|
| 727 | was not defined.
|
|---|
| 728 | Added makefile.intel and updated makefile.watcom (Pawel Mrochen)
|
|---|
| 729 | version 1.0.6j [May 3, 2000]
|
|---|
| 730 | Overloaded png_read_init() and png_write_init() with macros that convert
|
|---|
| 731 | calls to png_read_init_2() or png_write_init_2() that check the version
|
|---|
| 732 | and structure sizes.
|
|---|
| 733 | version 1.0.7beta11 [May 7, 2000]
|
|---|
| 734 | Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes
|
|---|
| 735 | which are no longer used.
|
|---|
| 736 | Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is
|
|---|
| 737 | defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXT_SUPPORTED
|
|---|
| 738 | is defined.
|
|---|
| 739 | Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory
|
|---|
| 740 | overrun when old applications fill the info_ptr->text structure directly.
|
|---|
| 741 | Added PNGAPI macro, and added it to the definitions of all exported functions.
|
|---|
| 742 | Relocated version macro definitions ahead of the includes of zlib.h and
|
|---|
| 743 | pngconf.h in png.h.
|
|---|
| 744 | version 1.0.7beta12 [May 12, 2000]
|
|---|
| 745 | Revised pngset.c to avoid a problem with expanding the png_debug macro.
|
|---|
| 746 | Deleted some extraneous defines from pngconf.h
|
|---|
| 747 | Made PNG_NO_CONSOLE_IO the default condition when PNG_BUILD_DLL is defined.
|
|---|
| 748 | Use MSC _RPTn debugging instead of fprintf if _MSC_VER is defined.
|
|---|
| 749 | Added png_access_version_number() function.
|
|---|
| 750 | Check for mask&PNG_FREE_CHNK (for TEXT, SCAL, PCAL) in png_free_data().
|
|---|
| 751 | Expanded libpng.3/libpng.txt information about png_data_freer().
|
|---|
| 752 | version 1.0.7beta14 [May 17, 2000] (beta13 was not published)
|
|---|
| 753 | Changed pnggccrd.c and pngvcrd.c to handle bad adaptive filter types as
|
|---|
| 754 | warnings instead of errors, as pngrutil.c does.
|
|---|
| 755 | Set the PNG_INFO_IDAT valid flag in png_set_rows() so png_write_png()
|
|---|
| 756 | will actually write IDATs.
|
|---|
| 757 | Made the default PNG_USE_LOCAL_ARRAYS depend on PNG_DLL instead of WIN32.
|
|---|
| 758 | Make png_free_data() ignore its final parameter except when freeing data
|
|---|
| 759 | that can have multiple instances (text, sPLT, unknowns).
|
|---|
| 760 | Fixed a new bug in png_set_rows().
|
|---|
| 761 | Removed info_ptr->valid tests from png_free_data(), as in version 1.0.5.
|
|---|
| 762 | Added png_set_invalid() function.
|
|---|
| 763 | Fixed incorrect illustrations of png_destroy_write_struct() in example.c.
|
|---|
| 764 | version 1.0.7beta15 [May 30, 2000]
|
|---|
| 765 | Revised the deliberately erroneous Linux setjmp code in pngconf.h to produce
|
|---|
| 766 | fewer error messages.
|
|---|
| 767 | Rearranged checks for Z_OK to check the most likely path first in pngpread.c
|
|---|
| 768 | and pngwutil.c.
|
|---|
| 769 | Added checks in pngtest.c for png_create_*() returning NULL, and mentioned
|
|---|
| 770 | in libpng.txt/libpng.3 the need for applications to check this.
|
|---|
| 771 | Changed names of png_default_*() functions in pngtest to pngtest_*().
|
|---|
| 772 | Changed return type of png_get_x|y_offset_*() from png_uint_32 to png_int_32.
|
|---|
| 773 | Fixed some bugs in the unused PNG_INCH_CONVERSIONS functions in pngget.c
|
|---|
| 774 | Set each pointer to NULL after freeing it in png_free_data().
|
|---|
| 775 | Worked around a problem in pngconf.h; AIX's strings.h defines an "index"
|
|---|
| 776 | macro that conflicts with libpng's png_color_16.index. (Dimitri Papadapoulos)
|
|---|
| 777 | Added "msvc" directory with MSVC++ project files (Simon-Pierre Cadieux).
|
|---|
| 778 | version 1.0.7beta16 [June 4, 2000]
|
|---|
| 779 | Revised the workaround of AIX string.h "index" bug.
|
|---|
| 780 | Added a check for overlength PLTE chunk in pngrutil.c.
|
|---|
| 781 | Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer
|
|---|
| 782 | indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler.
|
|---|
| 783 | Added a warning in png_decompress_chunk() when it runs out of data, e.g.
|
|---|
| 784 | when it tries to read an erroneous PhotoShop iCCP chunk.
|
|---|
| 785 | Added PNG_USE_DLL macro.
|
|---|
| 786 | Revised the copyright/disclaimer/license notice.
|
|---|
| 787 | Added contrib/msvctest directory
|
|---|
| 788 | version 1.0.7rc1 [June 9, 2000]
|
|---|
| 789 | Corrected the definition of PNG_TRANSFORM_INVERT_ALPHA (0x0400 not 0x0200)
|
|---|
| 790 | Added contrib/visupng directory (Willem van Schaik)
|
|---|
| 791 | version 1.0.7beta18 [June 23, 2000]
|
|---|
| 792 | Revised PNGAPI definition, and pngvcrd.c to work with __GCC__
|
|---|
| 793 | and do not redefine PNGAPI if it is passed in via a compiler directive.
|
|---|
| 794 | Revised visupng/PngFile.c to remove returns from within the Try block.
|
|---|
| 795 | Removed leading underscores from "_PNG_H" and "_PNG_SAVE_BSD_SOURCE" macros.
|
|---|
| 796 | Updated contrib/visupng/cexcept.h to version 1.0.0.
|
|---|
| 797 | Fixed bugs in pngwrite.c and pngwutil.c that prevented writing iCCP chunks.
|
|---|
| 798 | version 1.0.7rc2 [June 28, 2000]
|
|---|
| 799 | Updated license to include disclaimers required by UCITA.
|
|---|
| 800 | Fixed "DJBPP" typo in pnggccrd.c introduced in beta18.
|
|---|
| 801 | version 1.0.7 [July 1, 2000]
|
|---|
| 802 | Revised the definition of "trans_values" in libpng.3/libpng.txt
|
|---|
| 803 | version 1.0.8beta1 [July 8, 2000]
|
|---|
| 804 | Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks.
|
|---|
| 805 | Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and
|
|---|
| 806 | pngwutil.c.
|
|---|
| 807 | Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h.
|
|---|
| 808 | Removed unused "#include <assert.h>" from png.c
|
|---|
| 809 | Added WindowsCE support.
|
|---|
| 810 | Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment.
|
|---|
| 811 | version 1.0.8beta2 [July 10, 2000]
|
|---|
| 812 | Added project files to the wince directory and made further revisions
|
|---|
| 813 | of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE.
|
|---|
| 814 | version 1.0.8beta3 [July 11, 2000]
|
|---|
| 815 | Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS()
|
|---|
| 816 | for indexed-color input files to avoid potential double-freeing trans array
|
|---|
| 817 | under some unusual conditions; problem was introduced in version 1.0.6f.
|
|---|
| 818 | Further revisions to pngtest.c and files in the wince subdirectory.
|
|---|
| 819 | version 1.0.8beta4 [July 14, 2000]
|
|---|
| 820 | Added the files pngbar.png and pngbar.jpg to the distribution.
|
|---|
| 821 | Added makefile.cygwin, and cygwin support in pngconf.h
|
|---|
| 822 | Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory)
|
|---|
| 823 | version 1.0.8rc1 [July 16, 2000]
|
|---|
| 824 | Revised png_debug() macros and statements to eliminate compiler warnings.
|
|---|
| 825 | version 1.0.8 [July 24, 2000]
|
|---|
| 826 | Added png_flush() in pngwrite.c, after png_write_IEND().
|
|---|
| 827 | Updated makefile.hpux to build a shared library.
|
|---|
| 828 | version 1.0.9beta1 [November 10, 2000]
|
|---|
| 829 | Fixed typo in scripts/makefile.hpux
|
|---|
| 830 | Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)
|
|---|
| 831 | Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
|
|---|
| 832 | Changed "cdrom.com" in documentation to "libpng.org"
|
|---|
| 833 | Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).
|
|---|
| 834 | Changed type of "params" from voidp to png_voidp in png_read|write_png().
|
|---|
| 835 | Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h.
|
|---|
| 836 | Revised the 3 instances of WRITEFILE in pngtest.c.
|
|---|
| 837 | Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory.
|
|---|
| 838 | Updated png.rc in dll/msvc project
|
|---|
| 839 | Revised makefile.dec to define and use LIBPATH and INCPATH
|
|---|
| 840 | Increased size of global png_libpng_ver[] array from 12 to 18 chars.
|
|---|
| 841 | Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const.
|
|---|
| 842 | Removed duplicate png_crc_finish() from png_handle_bKGD() function.
|
|---|
| 843 | Added a warning when application calls png_read_update_info() multiple times.
|
|---|
| 844 | Revised makefile.cygwin
|
|---|
| 845 | Fixed bugs in iCCP support in pngrutil.c and pngwutil.c.
|
|---|
| 846 | Replaced png_set_empty_plte_permitted() with png_permit_mng_features().
|
|---|
| 847 | version 1.0.9beta2 [November 19, 2000]
|
|---|
| 848 | Renamed the "dll" subdirectory "projects".
|
|---|
| 849 | Added borland project files to "projects" subdirectory.
|
|---|
| 850 | Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate.
|
|---|
| 851 | Add error message in png_set_compression_buffer_size() when malloc fails.
|
|---|
| 852 | version 1.0.9beta3 [November 23, 2000]
|
|---|
| 853 | Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project.
|
|---|
| 854 | Removed the png_flush() in pngwrite.c that crashes some applications
|
|---|
| 855 | that don't set png_output_flush_fn.
|
|---|
| 856 | Added makefile.macosx and makefile.aix to scripts directory.
|
|---|
| 857 | version 1.0.9beta4 [December 1, 2000]
|
|---|
| 858 | Change png_chunk_warning to png_warning in png_check_keyword().
|
|---|
| 859 | Increased the first part of msg buffer from 16 to 18 in png_chunk_error().
|
|---|
| 860 | version 1.0.9beta5 [December 15, 2000]
|
|---|
| 861 | Added support for filter method 64 (for PNG datastreams embedded in MNG).
|
|---|
| 862 | version 1.0.9beta6 [December 18, 2000]
|
|---|
| 863 | Revised png_set_filter() to accept filter method 64 when appropriate.
|
|---|
| 864 | Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to
|
|---|
| 865 | help prevent applications from using MNG features in PNG datastreams.
|
|---|
| 866 | Added png_permit_mng_features() function.
|
|---|
| 867 | Revised libpng.3/libpng.txt. Changed "filter type" to "filter method".
|
|---|
| 868 | version 1.0.9rc1 [December 23, 2000]
|
|---|
| 869 | Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c
|
|---|
| 870 | Fixed error handling of unknown compression type in png_decompress_chunk().
|
|---|
| 871 | In pngconf.h, define __cdecl when _MSC_VER is defined.
|
|---|
| 872 | version 1.0.9beta7 [December 28, 2000]
|
|---|
| 873 | Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.
|
|---|
| 874 | Revised memory management in png_set_hIST and png_handle_hIST in a backward
|
|---|
| 875 | compatible manner. PLTE and tRNS were revised similarly.
|
|---|
| 876 | Revised the iCCP chunk reader to ignore trailing garbage.
|
|---|
| 877 | version 1.0.9beta8 [January 12, 2001]
|
|---|
| 878 | Moved pngasmrd.h into pngconf.h.
|
|---|
| 879 | Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop.
|
|---|
| 880 | version 1.0.9beta9 [January 15, 2001]
|
|---|
| 881 | Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to
|
|---|
| 882 | wince and msvc project module definition files.
|
|---|
| 883 | Minor revision of makefile.cygwin.
|
|---|
| 884 | Fixed bug with progressive reading of narrow interlaced images in pngpread.c
|
|---|
| 885 | version 1.0.9beta10 [January 16, 2001]
|
|---|
| 886 | Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined.
|
|---|
| 887 | Fixed "png_mmx_supported" typo in project definition files.
|
|---|
| 888 | version 1.0.9beta11 [January 19, 2001]
|
|---|
| 889 | Updated makefile.sgi to make shared library.
|
|---|
| 890 | Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED
|
|---|
| 891 | by default, for the benefit of DLL forward compatibility. These will
|
|---|
| 892 | be re-enabled in version 1.2.0.
|
|---|
| 893 | version 1.0.9rc2 [January 22, 2001]
|
|---|
| 894 | Revised cygwin support.
|
|---|
| 895 | version 1.0.9 [January 31, 2001]
|
|---|
| 896 | Added check of cygwin's ALL_STATIC in pngconf.h
|
|---|
| 897 | Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos.
|
|---|
| 898 | version 1.0.10beta1 [March 14, 2001]
|
|---|
| 899 | Revised makefile.dec, makefile.sgi, and makefile.sggcc; added makefile.hpgcc.
|
|---|
| 900 | Reformatted libpng.3 to eliminate bad line breaks.
|
|---|
| 901 | Added checks for _mmx_supported in the read_filter_row function of pnggccrd.c
|
|---|
| 902 | Added prototype for png_mmx_support() near the top of pnggccrd.c
|
|---|
| 903 | Moved some error checking from png_handle_IHDR to png_set_IHDR.
|
|---|
| 904 | Added PNG_NO_READ_SUPPORTED and PNG_NO_WRITE_SUPPORTED macros.
|
|---|
| 905 | Revised png_mmx_support() function in pnggccrd.c
|
|---|
| 906 | Restored version 1.0.8 PNG_WRITE_EMPTY_PLTE_SUPPORTED behavior in pngwutil.c
|
|---|
| 907 | Fixed memory leak in contrib/visupng/PngFile.c
|
|---|
| 908 | Fixed bugs in png_combine_row() in pnggccrd.c and pngvcrd.c (C version)
|
|---|
| 909 | Added warnings when retrieving or setting gamma=0.
|
|---|
| 910 | Increased the first part of msg buffer from 16 to 18 in png_chunk_warning().
|
|---|
| 911 | version 1.0.10rc1 [March 23, 2001]
|
|---|
| 912 | Changed all instances of memcpy, strcpy, and strlen to png_memcpy, png_strcpy,
|
|---|
| 913 | and png_strlen.
|
|---|
| 914 | Revised png_mmx_supported() function in pnggccrd.c to return proper value.
|
|---|
| 915 | Fixed bug in progressive reading (pngpread.c) with small images (height < 8).
|
|---|
| 916 | version 1.0.10 [March 30, 2001]
|
|---|
| 917 | Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin
|
|---|
| 918 | Added beos project files (Chris Herborth)
|
|---|
| 919 | version 1.0.11beta1 [April 3, 2001]
|
|---|
| 920 | Added type casts on several png_malloc() calls (Dimitri Papadapoulos).
|
|---|
| 921 | Removed a no-longer needed AIX work-around from pngconf.h
|
|---|
| 922 | Changed several "//" single-line comments to C-style in pnggccrd.c
|
|---|
| 923 | version 1.0.11beta2 [April 11, 2001]
|
|---|
| 924 | Removed PNGAPI from several functions whose prototypes did not have PNGAPI.
|
|---|
| 925 | Updated scripts/pngos2.def
|
|---|
| 926 | version 1.0.11beta3 [April 14, 2001]
|
|---|
| 927 | Added checking the results of many instances of png_malloc() for NULL
|
|---|
| 928 | version 1.0.11beta4 [April 20, 2001]
|
|---|
| 929 | Undid the changes from version 1.0.11beta3. Added a check for NULL return
|
|---|
| 930 | from user's malloc_fn().
|
|---|
| 931 | Removed some useless type casts of the NULL pointer.
|
|---|
| 932 | Added makefile.netbsd
|
|---|
| 933 | version 1.0.11 [April 27, 2001]
|
|---|
| 934 | Revised makefile.netbsd
|
|---|
| 935 | version 1.0.12beta1 [May 14, 2001]
|
|---|
| 936 | Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot)
|
|---|
| 937 | Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h
|
|---|
| 938 | Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings.
|
|---|
| 939 | Eliminated the png_error about apps using png_read|write_init(). Instead,
|
|---|
| 940 | libpng will reallocate the png_struct and info_struct if they are too small.
|
|---|
| 941 | This retains future binary compatibility for old applications written for
|
|---|
| 942 | libpng-0.88 and earlier.
|
|---|
| 943 | version 1.2.0beta1 [May 6, 2001]
|
|---|
| 944 | Bumped DLLNUM to 2.
|
|---|
| 945 | Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED
|
|---|
| 946 | by default.
|
|---|
| 947 | Added runtime selection of MMX features.
|
|---|
| 948 | Added png_set_strip_error_numbers function and related macros.
|
|---|
| 949 | version 1.2.0beta2 [May 7, 2001]
|
|---|
| 950 | Finished merging 1.2.0beta1 with version 1.0.11
|
|---|
| 951 | Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
|
|---|
| 952 | version 1.2.0beta3 [May 17, 2001]
|
|---|
| 953 | Enabled user memory function by default.
|
|---|
| 954 | Modified png_create_struct so it passes user mem_ptr to user memory allocator.
|
|---|
| 955 | Increased png_mng_features flag from png_byte to png_uint_32.
|
|---|
| 956 | Bumped shared-library (so-number) and dll-number to 3.
|
|---|
| 957 | version 1.2.0beta4 [June 23, 2001]
|
|---|
| 958 | Check for missing profile length field in iCCP chunk and free chunk_data
|
|---|
| 959 | in case of truncated iCCP chunk.
|
|---|
| 960 | Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc
|
|---|
| 961 | Bumped dll-number from 2 to 3 in makefile.cygwin
|
|---|
| 962 | Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly
|
|---|
| 963 | if user attempts to run it on an 8-bit display.
|
|---|
| 964 | Updated contrib/gregbook
|
|---|
| 965 | Use png_malloc instead of png_zalloc to allocate palette in pngset.c
|
|---|
| 966 | Updated makefile.ibmc
|
|---|
| 967 | Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes
|
|---|
| 968 | of png_write_oFFS width and height from png_uint_32 to png_int_32.
|
|---|
| 969 | Updated example.c
|
|---|
| 970 | Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c
|
|---|
| 971 | version 1.2.0beta5 [August 8, 2001]
|
|---|
| 972 | Revised contrib/gregbook
|
|---|
| 973 | Revised makefile.gcmmx
|
|---|
| 974 | Revised pnggccrd.c to conditionally compile some thread-unsafe code only
|
|---|
| 975 | when PNG_THREAD_UNSAFE_OK is defined.
|
|---|
| 976 | Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with
|
|---|
| 977 | value exceeding 2^bit_depth-1
|
|---|
| 978 | Revised makefile.sgi and makefile.sggcc
|
|---|
| 979 | Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c
|
|---|
| 980 | Removed restriction that do_invert_mono only operate on 1-bit opaque files
|
|---|
| 981 | version 1.2.0 [September 1, 2001]
|
|---|
| 982 | Changed a png_warning() to png_debug() in pnggccrd.c
|
|---|
| 983 | Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC().
|
|---|
| 984 | version 1.2.1beta1 [October 19, 2001]
|
|---|
| 985 | Revised makefile.std in contrib/pngminus
|
|---|
| 986 | Include background_1 in png_struct regardless of gamma support.
|
|---|
| 987 | Revised makefile.netbsd and makefile.macosx, added makefile.darwin.
|
|---|
| 988 | Revised example.c to provide more details about using row_callback().
|
|---|
| 989 | version 1.2.1beta2 [October 25, 2001]
|
|---|
| 990 | Added type cast to each NULL appearing in a function call, except for
|
|---|
| 991 | WINCE functions.
|
|---|
| 992 | Added makefile.so9.
|
|---|
| 993 | version 1.2.1beta3 [October 27, 2001]
|
|---|
| 994 | Removed type casts from all NULLs.
|
|---|
| 995 | Simplified png_create_struct_2().
|
|---|
| 996 | version 1.2.1beta4 [November 7, 2001]
|
|---|
| 997 | Revised png_create_info_struct() and png_creat_struct_2().
|
|---|
| 998 | Added error message if png_write_info() was omitted.
|
|---|
| 999 | Type cast NULLs appearing in function calls when _NO_PROTO or
|
|---|
| 1000 | PNG_TYPECAST_NULL is defined.
|
|---|
| 1001 | version 1.2.1rc1 [November 24, 2001]
|
|---|
| 1002 | Type cast NULLs appearing in function calls except when PNG_NO_TYPECAST_NULL
|
|---|
| 1003 | is defined.
|
|---|
| 1004 | Changed typecast of "size" argument to png_size_t in pngmem.c calls to
|
|---|
| 1005 | the user malloc_fn, to agree with the prototype in png.h
|
|---|
| 1006 | Added a pop/push operation to pnggccrd.c, to preserve Eflag (Maxim Sobolev)
|
|---|
| 1007 | Updated makefile.sgi to recognize LIBPATH and INCPATH.
|
|---|
| 1008 | Updated various makefiles so "make clean" does not remove previous major
|
|---|
| 1009 | version of the shared library.
|
|---|
| 1010 | version 1.2.1rc2 [December 4, 2001]
|
|---|
| 1011 | Always allocate 256-entry internal palette, hist, and trans arrays, to
|
|---|
| 1012 | avoid out-of-bounds memory reference caused by invalid PNG datastreams.
|
|---|
| 1013 | Added a check for prefix_length > data_length in iCCP chunk handler.
|
|---|
| 1014 | version 1.2.1 [December 7, 2001]
|
|---|
| 1015 | None.
|
|---|
| 1016 | version 1.2.2beta1 [February 22, 2002]
|
|---|
| 1017 | Fixed a bug with reading the length of iCCP profiles (Larry Reeves).
|
|---|
| 1018 | Revised makefile.linux, makefile.gcmmx, and makefile.sgi to generate
|
|---|
| 1019 | libpng.a, libpng12.so (not libpng.so.3), and libpng12/png.h
|
|---|
| 1020 | Revised makefile.darwin to remove "-undefined suppress" option.
|
|---|
| 1021 | Added checks for gamma and chromaticity values over 21474.83, which exceed
|
|---|
| 1022 | the limit for PNG unsigned 32-bit integers when encoded.
|
|---|
| 1023 | Revised calls to png_create_read_struct() and png_create_write_struct()
|
|---|
| 1024 | for simpler debugging.
|
|---|
| 1025 | Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK)
|
|---|
| 1026 | version 1.2.2beta2 [February 23, 2002]
|
|---|
| 1027 | Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths.
|
|---|
| 1028 | Check for invalid image dimensions in png_get_IHDR.
|
|---|
| 1029 | Added missing "fi;" in the install target of the SGI makefiles.
|
|---|
| 1030 | Added install-static to all makefiles that make shared libraries.
|
|---|
| 1031 | Always do gamma compensation when image is partially transparent.
|
|---|
| 1032 | version 1.2.2beta3 [March 7, 2002]
|
|---|
| 1033 | Compute background.gray and background_1.gray even when color_type is RGB
|
|---|
| 1034 | in case image gets reduced to gray later.
|
|---|
| 1035 | Modified shared-library makefiles to install pkgconfig/libpngNN.pc.
|
|---|
| 1036 | Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown
|
|---|
| 1037 | Removed unused png_write_destroy_info prototype from png.h
|
|---|
| 1038 | Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case
|
|---|
| 1039 | Added install-shared target to all makefiles that make shared libraries.
|
|---|
| 1040 | Stopped a double free of palette, hist, and trans when not using free_me.
|
|---|
| 1041 | Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64.
|
|---|
| 1042 | version 1.2.2beta4 [March 8, 2002]
|
|---|
| 1043 | Compute background.gray and background_1.gray even when color_type is RGB
|
|---|
| 1044 | in case image gets reduced to gray later (Jason Summers).
|
|---|
| 1045 | Relocated a misplaced /bin/rm in the "install-shared" makefile targets
|
|---|
| 1046 | Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library.
|
|---|
| 1047 | version 1.2.2beta5 [March 26, 2002]
|
|---|
| 1048 | Added missing PNGAPI to several function definitions.
|
|---|
| 1049 | Check for invalid bit_depth or color_type in png_get_IHDR(), and
|
|---|
| 1050 | check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen).
|
|---|
| 1051 | Revised iTXt support to accept NULL for lang and lang_key.
|
|---|
| 1052 | Compute gamma for color components of background even when color_type is gray.
|
|---|
| 1053 | Changed "()" to "{}" in scripts/libpng.pc.in.
|
|---|
| 1054 | Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN
|
|---|
| 1055 | Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so
|
|---|
| 1056 | version 1.2.2beta6 [March 31, 2002]
|
|---|
| 1057 | version 1.0.13beta1 [March 31, 2002]
|
|---|
| 1058 | Prevent png_zalloc() from trying to memset memory that it failed to acquire.
|
|---|
| 1059 | Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate).
|
|---|
| 1060 | Ensure that the right function (user or default) is used to free the
|
|---|
| 1061 | png_struct after an error in png_create_read_struct_2().
|
|---|
| 1062 | version 1.2.2rc1 [April 7, 2002]
|
|---|
| 1063 | version 1.0.13rc1 [April 7, 2002]
|
|---|
| 1064 | Save the ebx register in pnggccrd.c (Sami Farin)
|
|---|
| 1065 | Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner).
|
|---|
| 1066 | Updated makefiles to put headers in include/libpng and remove old include/*.h.
|
|---|
| 1067 | version 1.2.2 [April 15, 2002]
|
|---|
| 1068 | version 1.0.13 [April 15, 2002]
|
|---|
| 1069 | Revised description of png_set_filter() in libpng.3/libpng.txt.
|
|---|
| 1070 | Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd
|
|---|
| 1071 | version 1.0.13patch01 [April 17, 2002]
|
|---|
| 1072 | version 1.2.2patch01 [April 17, 2002]
|
|---|
| 1073 | Changed ${PNGMAJ}.${PNGVER} bug to ${PNGVER} in makefile.sgi and makefile.sggcc
|
|---|
| 1074 | Fixed VER -> PNGVER typo in makefile.macosx and added install-static to install
|
|---|
| 1075 | Added install: target to makefile.32sunu and makefile.64sunu
|
|---|
| 1076 | version 1.0.13patch03 [April 18, 2002]
|
|---|
| 1077 | version 1.2.2patch03 [April 18, 2002]
|
|---|
| 1078 | Revised 15 makefiles to link libpng.a to libpngNN.a and the include libpng
|
|---|
| 1079 | subdirectory to libpngNN subdirectory without the full pathname.
|
|---|
| 1080 | Moved generation of libpng.pc from "install" to "all" in 15 makefiles.
|
|---|
| 1081 | version 1.2.3rc1 [April 28, 2002]
|
|---|
| 1082 | Added install-man target to 15 makefiles (Dimitri Papadopolous-Orfanos).
|
|---|
| 1083 | Added $(DESTDIR) feature to 24 makefiles (Tim Mooney)
|
|---|
| 1084 | Fixed bug with $prefix, should be $(prefix) in makefile.hpux.
|
|---|
| 1085 | Updated cygwin-specific portion of pngconf.h and revised makefile.cygwin
|
|---|
| 1086 | Added a link from libpngNN.pc to libpng.pc in 15 makefiles.
|
|---|
| 1087 | Added links from include/libpngNN/*.h to include/*.h in 24 makefiles.
|
|---|
| 1088 | Revised makefile.darwin to make relative links without full pathname.
|
|---|
| 1089 | Added setjmp() at the end of png_create_*_struct_2() in case user forgets
|
|---|
| 1090 | to put one in their application.
|
|---|
| 1091 | Restored png_zalloc() and png_zfree() prototypes to version 1.2.1 and
|
|---|
| 1092 | removed them from module definition files.
|
|---|
| 1093 | version 1.2.3rc2 [May 1, 2002]
|
|---|
| 1094 | Fixed bug in reporting number of channels in pngget.c and pngset.c,
|
|---|
| 1095 | that was introduced in version 1.2.2beta5.
|
|---|
| 1096 | Exported png_zalloc(), png_zfree(), png_default_read(), png_default_write(),
|
|---|
| 1097 | png_default_flush(), and png_push_fill_buffer() and included them in
|
|---|
| 1098 | module definition files.
|
|---|
| 1099 | Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles.
|
|---|
| 1100 | version 1.2.3rc3 [May 1, 2002]
|
|---|
| 1101 | Revised prototype for png_default_flush()
|
|---|
| 1102 | Remove old libpng.pc and libpngNN.pc before installing new ones.
|
|---|
| 1103 | version 1.2.3rc4 [May 2, 2002]
|
|---|
| 1104 | Typos in *.def files (png_default_read|write -> png_default_read|write_data)
|
|---|
| 1105 | In makefiles, changed rm libpng.NN.pc to rm libpngNN.pc
|
|---|
| 1106 | Added libpng-config and libpngNN-config and modified makefiles to install them.
|
|---|
| 1107 | Changed $(MANPATH) to $(DESTDIR)$(MANPATH) in makefiles
|
|---|
| 1108 | Added "Win32 DLL VB" configuration to projects/msvc/libpng.dsp
|
|---|
| 1109 | version 1.2.3rc5 [May 11, 2002]
|
|---|
| 1110 | Changed "error" and "message" in prototypes to "error_message" and
|
|---|
| 1111 | "warning_message" to avoid namespace conflict.
|
|---|
| 1112 | Revised 15 makefiles to build libpng-config from libpng-config-*.in
|
|---|
| 1113 | Once more restored png_zalloc and png_zfree to regular nonexported form.
|
|---|
| 1114 | Restored png_default_read|write_data, png_default_flush, png_read_fill_buffer
|
|---|
| 1115 | to nonexported form, but with PNGAPI, and removed them from module def files.
|
|---|
| 1116 | version 1.2.3rc6 [May 14, 2002]
|
|---|
| 1117 | Removed "PNGAPI" from png_zalloc() and png_zfree() in png.c
|
|---|
| 1118 | Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp.
|
|---|
| 1119 | Removed leftover libpng-config "sed" script from four makefiles.
|
|---|
| 1120 | Revised libpng-config creating script in 16 makefiles.
|
|---|
| 1121 | version 1.2.3 [May 22, 2002]
|
|---|
| 1122 | Revised libpng-config target in makefile.cygwin.
|
|---|
| 1123 | Removed description of png_set_mem_fn() from documentation.
|
|---|
| 1124 | Revised makefile.freebsd.
|
|---|
| 1125 | Minor cosmetic changes to 15 makefiles, e.g., $(DI) = $(DESTDIR)/$(INCDIR).
|
|---|
| 1126 | Revised projects/msvc/README.txt
|
|---|
| 1127 | Changed -lpng to -lpngNN in LDFLAGS in several makefiles.
|
|---|
| 1128 | version 1.2.4beta1 [May 24, 2002]
|
|---|
| 1129 | Added libpng.pc and libpng-config to "all:" target in 16 makefiles.
|
|---|
| 1130 | Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH)
|
|---|
| 1131 | Added missing "\" before closing double quote in makefile.gcmmx.
|
|---|
| 1132 | Plugged various memory leaks; added png_malloc_warn() and png_set_text_2()
|
|---|
| 1133 | functions.
|
|---|
| 1134 | version 1.2.4beta2 [June 25, 2002]
|
|---|
| 1135 | Plugged memory leak of png_ptr->current_text (Matt Holgate).
|
|---|
| 1136 | Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison)
|
|---|
| 1137 | Added -soname to the loader flags in makefile.dec, makefile.sgi, and
|
|---|
| 1138 | makefile.sggcc.
|
|---|
| 1139 | Added "test-installed" target to makefile.linux, makefile.gcmmx,
|
|---|
| 1140 | makefile.sgi, and makefile.sggcc.
|
|---|
| 1141 | version 1.2.4beta3 [June 28, 2002]
|
|---|
| 1142 | Plugged memory leak of row_buf in pngtest.c when there is a png_error().
|
|---|
| 1143 | Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data.
|
|---|
| 1144 | Added "test-installed" target to makefile.32sunu, makefile.64sunu,
|
|---|
| 1145 | makefile.beos, makefile.darwin, makefile.dec, makefile.macosx,
|
|---|
| 1146 | makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9.
|
|---|
| 1147 | version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002]
|
|---|
| 1148 | Added "test-installed" target to makefile.cygwin and makefile.sco.
|
|---|
| 1149 | Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro.
|
|---|
| 1150 | version 1.2.4 and 1.0.14 [July 8, 2002]
|
|---|
| 1151 | Changed png_warning() to png_error() when width is too large to process.
|
|---|
| 1152 | version 1.2.4patch01 [July 20, 2002]
|
|---|
| 1153 | Revised makefile.cygwin to use DLL number 12 instead of 13.
|
|---|
| 1154 | version 1.2.5beta1 [August 6, 2002]
|
|---|
| 1155 | Added code to contrib/gregbook/readpng2.c to ignore unused chunks.
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|---|
| 1156 | Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11)
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|---|
| 1157 | Removed some stray *.o files from contrib/gregbook.
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| 1158 | Changed png_error() to png_warning() about "Too much data" in pngpread.c
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| 1159 | and about "Extra compressed data" in pngrutil.c.
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| 1160 | Prevent png_ptr->pass from exceeding 7 in png_push_finish_row().
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|---|
| 1161 | Updated makefile.hpgcc
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|---|
| 1162 | Updated png.c and pnggccrd.c handling of return from png_mmx_support()
|
|---|
| 1163 | version 1.2.5beta2 [August 15, 2002]
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|---|
| 1164 | Only issue png_warning() about "Too much data" in pngpread.c when avail_in
|
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| 1165 | is nonzero.
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|---|
| 1166 | Updated makefiles to install a separate libpng.so.3 with its own rpath.
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|---|
| 1167 | version 1.2.5rc1 and 1.0.15rc1 [August 24, 2002]
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|---|
| 1168 | Revised makefiles to not remove previous minor versions of shared libraries.
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|---|
| 1169 | version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002]
|
|---|
| 1170 | Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared
|
|---|
| 1171 | library loader directive.
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|---|
| 1172 | Added missing "$OBJSDLL" line to makefile.gcmmx.
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|---|
| 1173 | Added missing "; fi" to makefile.32sunu.
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|---|
| 1174 | version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002]
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|---|
| 1175 | Revised libpng-config script.
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|---|
| 1176 | version 1.2.5 and 1.0.15 [October 3, 2002]
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|---|
| 1177 | Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux,
|
|---|
| 1178 | and makefile.aix.
|
|---|
| 1179 | Relocated two misplaced PNGAPI lines in pngtest.c
|
|---|
| 1180 |
|
|---|
| 1181 | Send comments/corrections/commendations to
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|---|
| 1182 | png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
|
|---|
| 1183 |
|
|---|
| 1184 | Glenn R-P
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|---|
