2
CHANGES - changes for libpng
5
added reader into png.h
6
fixed small problems in stub file
10
split up pngwrite.c to several files
13
cleaned up writer, adding a few new transformations
14
fixed some bugs in writer
15
interfaced with zlib 0.5
17
added check for 64 KB blocks for 16 bit machines
20
cleaned up code and commented code
21
simplified time handling into png_time
22
created png_color_16 and png_color_8 to handle color needs
23
cleaned up color type defines
25
made various names more consistent
26
interfaced with zlib 0.71
27
cleaned up zTXt reader and writer (using zlib's Reset functions)
28
split transformations into pngrtran.c and pngwtran.c
31
interfaced with zlib 0.8
32
fixed many reading and writing bugs
33
saved using 3 spaces instead of tabs
36
added png_large_malloc() and png_large_free()
38
cleaned up some compiler warnings
39
added png_start_read_image()
42
cleaned up lots of bugs
43
finished dithering and other stuff
45
changed name from pnglib to libpng
47
version 0.71 [June, 1995]
48
changed pngtest.png for zlib 0.93
49
fixed error in libpng.txt and example.c
53
added png_set_filler()
54
split up pngstub.c into pngmem.c, pngio.c, and pngerror.c
55
added #define's to remove unwanted code
56
moved png_info_init() to png.c
57
added old_size into png_realloc()
58
added functions to manually set filtering and compression info
59
changed compression parameters based on image type
60
optimized filter selection code
62
changed external functions passing floats to doubles (k&r problems?)
63
put all the configurable stuff in pngconf.h
64
enabled png_set_shift to work with paletted images on read
65
added png_read_update_info() - updates info structure with
68
version 0.81 [August, 1995]
69
incorporated Tim Wegner's medium model code (thanks, Tim)
71
version 0.82 [September, 1995]
74
version 0.85 [December, 1995]
75
added more medium model code (almost everything's a far)
76
added i/o, error, and memory callback functions
77
fixed some bugs (16 bit, 4 bit interlaced, etc.)
78
added first run progressive reader (barely tested)
80
version 0.86 [January, 1996]
82
improved documentation
84
version 0.87 [January, 1996]
85
fixed medium model bugs
86
fixed other bugs introduced in 0.85 and 0.86
87
added some minor documentation
89
version 0.88 [January, 1996]
90
fixed progressive bugs
91
replaced tabs with spaces
92
cleaned up documentation
93
added callbacks for read/write and warning/error functions
95
version 0.89 [July, 1996]
96
added new initialization API to make libpng work better with shared libs
97
we now have png_create_read_struct(), png_create_write_struct(),
98
png_create_info_struct(), png_destroy_read_struct(), and
99
png_destroy_write_struct() instead of the separate calls to
100
malloc and png_read_init(), png_info_init(), and png_write_init()
101
changed warning/error callback functions to fix bug - this means you
102
should use the new initialization API if you were using the old
103
png_set_message_fn() calls, and that the old API no longer exists
104
so that people are aware that they need to change their code
105
changed filter selection API to allow selection of multiple filters
106
since it didn't work in previous versions of libpng anyways
107
optimized filter selection code
108
fixed png_set_background() to allow using an arbitrary RGB color for
110
fixed gamma and background correction for paletted images, so
111
png_correct_palette is not needed unless you are correcting an
112
external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED
113
in pngconf.h) - if nobody uses this, it may disappear in the future.
114
fixed bug with Borland 64K memory allocation (Alexander Lehmann)
115
fixed bug in interlace handling (Smarasderagd, I think)
116
added more error checking for writing and image to reduce invalid files
117
separated read and write functions so that they won't both be linked
118
into a binary when only reading or writing functionality is used
119
new pngtest image also has interlacing and zTXt
120
updated documentation to reflect new API
122
version 0.90 [January, 1997]
123
made CRC errors/warnings on critical and ancillary chunks configurable
124
libpng will use the zlib CRC routines by (compile-time) default
125
changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner)
126
added external C++ wrapper statements to png.h (Gilles Dauphin)
127
allow PNG file to be read when some or all of file signature has already
128
been read from the beginning of the stream. ****This affects the size
129
of info_struct and invalidates all programs that use a shared libpng****
130
fixed png_filler() declarations
131
fixed? background color conversions
132
fixed order of error function pointers to match documentation
133
current chunk name is now available in png_struct to reduce the number
134
of nearly identical error messages (will simplify multi-lingual
135
support when available)
136
try to get ready for unknown-chunk callback functions:
137
- previously read critical chunks are flagged, so the chunk handling
138
routines can determine if the chunk is in the right place
139
- all chunk handling routines have the same prototypes, so we will
140
be able to handle all chunks via a callback mechanism
141
try to fix Linux "setjmp" buffer size problems
142
removed png_large_malloc, png_large_free, and png_realloc functions.
144
version 0.95 [March, 1997]
145
fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never
146
fixed bug in PNG file signature compares when start != 0
147
changed parameter type of png_set_filler(...filler...) from png_byte
149
added test for MACOS to ensure that both math.h and fp.h are not #included
150
added macros for libpng to be compiled as a Windows DLL (Andreas Kupries)
151
added "packswap" transformation, which changes the endianness of
152
packed-pixel bytes (Kevin Bracey)
153
added "strip_alpha" transformation, which removes the alpha channel of
154
input images without using it (not necessarily a good idea)
155
added "swap_alpha" transformation, which puts the alpha channel in front
156
of the color bytes instead of after
157
removed all implicit variable tests which assume NULL == 0 (I think)
158
changed several variables to "png_size_t" to show 16/32-bit limitations
159
added new pCAL chunk read/write support
160
added experimental filter selection weighting (Greg Roelofs)
161
removed old png_set_rgbx() and png_set_xrgb() functions that have been
162
obsolete for about 2 years now (use png_set_filler() instead)
163
added macros to read 16- and 32-bit ints directly from buffer, to be
164
used only on those systems that support it (namely PowerPC and 680x0)
165
With some testing, this may become the default for MACOS/PPC systems.
166
only calculate CRC on data if we are going to use it
167
added macros for zTXt compression type PNG_zTXt_COMPRESSION_???
168
added macros for simple libpng debugging output selectable at compile time
169
removed PNG_READ_END_MODE in progressive reader (Smarasderagd)
170
more description of info_struct in libpng.txt and png.h
171
more instructions in example.c
172
more chunk types tested in pngtest.c
173
renamed pngrcb.c to pngset.c, and all png_read_<chunk> functions to be
174
png_set_<chunk>. We now have corresponding png_get_<chunk>
175
functions in pngget.c to get information in info_ptr. This isolates
176
the application from the internal organization of png_info_struct
177
(good for shared library implementations).
179
version 0.96 [May, 1997]
180
fixed serious bug with < 8bpp images introduced in 0.95
181
fixed 256-color transparency bug (Greg Roelofs)
182
fixed up documentation (Greg Roelofs, Laszlo Nyul)
183
fixed "error" in pngconf.h for Linux setjmp() behaviour
184
fixed DOS medium model support (Tim Wegner)
185
fixed png_check_keyword() for case with error in static string text
186
added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul)
187
added typecasts to quiet compiler errors
188
added more debugging info
190
version 0.97 [January, 1998]
191
removed PNG_USE_OWN_CRC capability
192
relocated png_set_crc_action from pngrutil.c to pngrtran.c
193
fixed typecasts of "new_key", etc. (Andreas Dilger)
194
added RFC 1152 [sic] date support
195
fixed bug in gamma handling of 4-bit grayscale
196
added 2-bit grayscale gamma handling (Glenn R-P)
197
added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P)
198
minor corrections in libpng.txt
199
added simple sRGB support (Glenn R-P)
200
easier conditional compiling, e.g. define PNG_READ/WRITE_NOT_FULLY_SUPPORTED;
201
all configurable options can be selected from command-line instead
202
of having to edit pngconf.h (Glenn R-P)
203
fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P)
204
added more conditions for png_do_background, to avoid changing
205
black pixels to background when a background is supplied and
206
no pixels are transparent
207
repaired PNG_NO_STDIO behaviour
208
tested NODIV support and made it default behaviour (Greg Roelofs)
209
added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler)
210
regularized version numbering scheme and bumped shared-library major
211
version number to 2 to avoid problems with libpng 0.89 apps (Greg Roelofs)
213
version 0.98 [January, 1998]
214
cleaned up some typos in libpng.txt and in code documentation
215
fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler)
216
cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c
217
changed recommendation about file_gamma for PC images to .51 from .45,
218
in example.c and libpng.txt, added comments to distinguish between
219
screen_gamma, viewing_gamma, and display_gamma.
220
changed all references to RFC1152 to read RFC1123 and changed the
221
PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED
222
added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent)
223
changed srgb_intent from png_byte to int to avoid compiler bugs
225
version 0.99 [January 30, 1998]
226
free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler)
227
fixed a longstanding "packswap" bug in pngtrans.c
228
fixed some inconsistencies in pngconf.h that prevented compiling with
229
PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined
230
fixed some typos and made other minor rearrangement of libpng.txt (Andreas)
231
changed recommendation about file_gamma for PC images to .50 from .51 in
232
example.c and libpng.txt, and changed file_gamma for sRGB images to .45
233
added a number of functions to access information from the png structure
234
png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit)
235
added TARGET_MACOS similar to zlib-1.0.8
236
define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined
237
added type casting to all png_malloc() function calls
238
version 0.99a [January 31, 1998]
239
Added type casts and parentheses to all returns that return a value.(Tim W.)
240
version 0.99b [February 4, 1998]
241
Added type cast png_uint_32 on malloc function calls where needed.
242
Changed type of num_hist from png_uint_32 to int (same as num_palette).
243
Added checks for rowbytes overflow, in case png_size_t is less than 32 bits.
244
Renamed makefile.elf to makefile.lnx.
245
version 0.99c [February 7, 1998]
246
More type casting. Removed erroneous overflow test in pngmem.c.
247
Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes.
248
Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5.
249
version 0.99d [February 11, 1998]
250
Renamed "far_to_near()" "png_far_to_near()"
252
Version 99c "buffered" operations didn't work as intended. Replaced them
253
with png_memcpy_check() and png_memset_check().
254
Added many "if (png_ptr == NULL) return" to quell compiler warnings about
255
unused png_ptr, mostly in pngget.c and pngset.c.
256
Check for overlength tRNS chunk present when indexed-color PLTE is read.
257
Cleaned up spelling errors in libpng.3/libpng.txt
258
Corrected a problem with png_get_tRNS() which returned undefined trans array
259
version 0.99e [February 28, 1998]
260
Corrected png_get_tRNS() again.
261
Add parentheses for easier reading of pngget.c, fixed "||" should be "&&".
262
Touched up example.c to make more of it compileable, although the entire
263
file still can't be compiled (Willem van Schaik)
264
Fixed a bug in png_do_shift() (Bryan Tsai)
265
Added a space in png.h prototype for png_write_chunk_start()
266
Replaced pngtest.png with one created with zlib 1.1.1
267
Changed pngtest to report PASS even when file size is different (Jean-loup G.)
268
Corrected some logic errors in png_do_invert_alpha() (Chris Patterson)
269
version 0.99f [March 5, 1998]
270
Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey)
271
Moved makefiles into a "scripts" directory, and added INSTALL instruction file
272
Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok)
273
Added pointers to "note on libpng versions" in makefile.lnx and README
274
Added row callback feature when reading and writing nonprogressive rows
275
and added a test of this feature in pngtest.c
276
Added user transform callbacks, with test of the feature in pngtest.c
277
version 0.99g [March 6, 1998, morning]
278
Minor changes to pngtest.c to suppress compiler warnings.
279
Removed "beta" language from documentation.
280
version 0.99h [March 6, 1998, evening]
281
Minor changes to previous minor changes to pngtest.c
282
Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED
283
and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro
284
Added user transform capability
286
version 1.00 [March 7, 1998]
287
Changed several typedefs in pngrutil.c
288
Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik)
289
replaced "while(1)" with "for(;;)"
290
added PNGARG() to prototypes in pngtest.c and removed some prototypes
291
updated some of the makefiles (Tom Lane)
292
changed some typedefs (s_start, etc.) in pngrutil.c
293
fixed dimensions of "short_months" array in pngwrite.c
294
Replaced ansi2knr.c with the one from jpeg-v6
296
version 1.0.0 [March 8, 1998]
297
Changed name from 1.00 to 1.0.0 (Adam Costello)
298
Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert)
299
version 1.0.0a [March 9, 1998]
300
Fixed three bugs in pngrtran.c to make gamma+background handling consistent
302
Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz
303
for major, minor, and bugfix releases. This is 10001. (Adam Costello,
305
Make months range from 1-12 in png_convert_to_rfc1123
306
version 1.0.0b [March 13, 1998]
307
Quieted compiler complaints about two empty "for" loops in pngrutil.c
308
Minor changes to makefile.s2x
309
Removed #ifdef/#endif around a png_free() in pngread.c
311
version 1.0.1 [March 14, 1998]
312
Changed makefile.s2x to reduce security risk of using a relative pathname
313
Fixed some typos in the documentation (Greg).
314
Fixed a problem with value of "channels" returned by png_read_update_info()
315
version 1.0.1a [April 21, 1998]
316
Optimized Paeth calculations by replacing abs() function calls with intrinsics
317
plus other loop optimizations. Improves avg decoding speed by about 20%.
318
Commented out i386istic "align" compiler flags in makefile.lnx.
319
Reduced the default warning level in some makefiles, to make them consistent.
320
Removed references to IJG and JPEG in the ansi2knr.c copyright statement.
321
Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation.
322
Added grayscale and 16-bit capability to png_do_read_filler().
323
Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes
324
too large when writing an image with bit_depth < 8 (Bob Dellaca).
325
Corrected some bugs in the experimental weighted filtering heuristics.
326
Moved a misplaced pngrutil code block that truncates tRNS if it has more
327
than num_palette entries -- test was done before num_palette was defined.
328
Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins).
329
Changed compiler flags in makefile.wat for better optimization (Pawel Mrochen).
330
version 1.0.1b [May 2, 1998]
331
Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg).
332
Relocated the png_composite macros from pngrtran.c to png.h (Greg).
333
Added makefile.sco (contributed by Mike Hopkirk).
334
Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a.
335
Fixed a bug in pngrtran.c that would set channels=5 under some circumstances.
336
More work on the Paeth-filtering, achieving imperceptible speedup (A Kleinert).
337
More work on loop optimization which may help when compiled with C++ compilers.
338
Added warnings when people try to use transforms they've defined out.
339
Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran.
340
Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg)
341
version 1.0.1c [May 11, 1998]
342
Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for
343
filler bytes should have been 0xff instead of 0xf.
344
Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images.
345
Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED
346
out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h
347
Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED,
348
for consistency, in pngconf.h
349
Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier
350
to remove unwanted capabilities via the compile line
351
Made some corrections to grammar (which, it's) in documentation (Greg).
352
Corrected example.c, use of row_pointers in png_write_image().
353
version 1.0.1d [May 24, 1998]
354
Corrected several statements that used side effects illegally in pngrutil.c
355
and pngtrans.c, that were introduced in version 1.0.1b
356
Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert)
357
More corrections to example.c, use of row_pointers in png_write_image()
359
Added pngdll.mak and pngdef.pas to scripts directory, contributed by
360
Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5
361
Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.)
362
Changed several loops from count-down to count-up, for consistency.
363
version 1.0.1e [June 6, 1998]
364
Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and
365
added warnings when people try to set png_read_fn and png_write_fn in
367
Added a test such that png_do_gamma will be done when num_trans==0
368
for truecolor images that have defined a background. This corrects an
369
error that was introduced in libpng-0.90 that can cause gamma processing
371
Added tests in png.h to include "trans" and "trans_values" in structures
372
when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined.
373
Add png_free(png_ptr->time_buffer) in png_destroy_read_struct()
374
Moved png_convert_to_rfc_1123() from pngwrite.c to png.c
375
Added capability for user-provided malloc_fn() and free_fn() functions,
376
and revised pngtest.c to demonstrate their use, replacing the
377
PNGTEST_DEBUG_MEM feature.
378
Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner).
380
version 1.0.2 [June 14, 1998]
381
Fixed two bugs in makefile.bor .
382
version 1.0.2a [December 30, 1998]
383
Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
384
Fixed a bug in png_do_filler() that made it fail to write filler bytes in
385
the left-most pixel of each row (Kevin Bracey).
386
Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
387
in pngtest.c (Duncan Simpson).
388
Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
389
even when no tIME chunk was present in the source file.
390
Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
391
Fixed a problem in png_read_push_finish_row(), which would not skip some
392
passes that it should skip, for images that are less than 3 pixels high.
393
Interchanged the order of calls to png_do_swap() and png_do_shift()
394
in pngwtran.c (John Cromer).
395
Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h .
396
Changed "bad adaptive filter type" from error to warning in pngrutil.c .
397
Fixed a documentation error about default filtering with 8-bit indexed-color.
398
Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO
400
Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
401
Added png_get_copyright() and png_get_header_version() functions.
402
Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c
403
Added information about debugging in libpng.txt and libpng.3 .
404
Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and makefile.sco.
405
Removed lines after Dynamic Dependencies" in makefile.aco .
406
Revised makefile.dec to make a shared library (Jeremie Petit).
407
Removed trailing blanks from all files.
408
version 1.0.2a [January 6, 1999]
409
Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
410
Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
411
Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
412
Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
415
version 1.0.3 [January 14, 1999]
416
Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
417
Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO.
418
version 1.0.3a [August 12, 1999]
419
Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning
420
if an attempt is made to read an interlaced image when it's not supported.
421
Added check if png_ptr->trans is defined before freeing it in pngread.c
422
Modified the Y2K statement to include versions back to version 0.71
423
Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c
424
Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments)
425
Replaced leading blanks with tab characters in makefile.hux
426
Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents.
427
Changed (float)red and (float)green to (double)red, (double)green
428
in png_set_rgb_to_gray() to avoid "promotion" problems in AIX.
429
Fixed a bug in pngconf.h that omitted <stdio.h> when PNG_DEBUG==0 (K Bracey).
430
Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt).
431
Updated documentation to refer to the PNG-1.2 specification.
432
Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c
433
in makefile.knr, INSTALL, and README (L. Peter Deutsch)
434
Fixed bugs in calculation of the length of rowbytes when adding alpha
435
channels to 16-bit images, in pngrtran.c (Chris Nokleberg)
436
Added function png_set_user_transform_info() to store user_transform_ptr,
437
user_depth, and user_channels into the png_struct, and a function
438
png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg)
439
Added function png_set_empty_plte_permitted() to make libpng useable
441
Corrected the typedef for png_free_ptr in png.h (Jesse Jones).
442
Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be
443
consistent with PNG-1.2, and allow variance of 500 before complaining.
444
Added assembler code contributed by Intel in file pngvcrd.c and modified
445
makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation, Gilles Vollant)
446
Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy.
447
Added some aliases for png_set_expand() in pngrtran.c, namely
448
png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS()
449
(Greg Roelofs, in "PNG: The Definitive Guide").
450
Added makefile.beo for BEOS on X86, contributed by Sander Stok.
451
version 1.0.3b [August 26, 1999]
452
Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h
453
Changed leading blanks to tabs in all makefiles.
454
Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code.
455
Made alternate versions of png_set_expand() in pngrtran.c, namely
456
png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha
457
(Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases.
458
Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h
459
Revised calculation of num_blocks in pngmem.c to avoid a potentially
460
negative shift distance, whose results are undefined in the C language.
461
Added a check in pngset.c to prevent writing multiple tIME chunks.
462
Added a check in pngwrite.c to detect invalid small window_bits sizes.
463
version 1.0.3d [September 4, 1999]
464
Fixed type casting of igamma in pngrutil.c
465
Added new png_expand functions to scripts/pngdef.pas and pngos2.def
466
Added a demo read_user_transform_fn that examines the row filters in pngtest.c
468
version 1.0.4 [September 24, 1999]
469
Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined
470
Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h
471
Made several minor corrections to pngtest.c
472
Renamed the makefiles with longer but more user friendly extensions.
473
Copied the PNG copyright and license to a separate LICENSE file.
474
Revised documentation, png.h, and example.c to remove reference to
475
"viewing_gamma" which no longer appears in the PNG specification.
476
Revised pngvcrd.c to use MMX code for interlacing only on the final pass.
477
Updated pngvcrd.c to use the faster C filter algorithms from libpng-1.0.1a
478
Split makefile.win32vc into two versions, makefile.vcawin32 (uses MMX
479
assembler code) and makefile.vcwin32 (doesn't).
480
Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING)
481
Added a copy of pngnow.png to the distribution.
482
version 1.0.4a [September 25, 1999]
483
Increase max_pixel_depth in pngrutil.c if a user transform needs it.
484
Changed several division operations to right-shifts in pngvcrd.c
485
version 1.0.4b [September 30, 1999]
486
Added parentheses in line 3732 of pngvcrd.c
487
Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1
488
version 1.0.4c [October 1, 1999]
489
Added a "png_check_version" function in png.c and pngtest.c that will generate
490
a helpful compiler error if an old png.h is found in the search path.
491
Changed type of png_user_transform_depth|channels from int to png_byte.
492
version 1.0.4d [October 6, 1999]
493
Changed 0.45 to 0.45455 in png_set_sRGB()
494
Removed unused PLTE entries from pngnow.png
495
Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly.
496
version 1.0.4e [October 10, 1999]
497
Fixed sign error in pngvcrd.c (Greg Roelofs)
498
Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P)
499
version 1.0.4f [October 15, 1999]
500
Surrounded example.c code with #if 0 .. #endif to prevent people from
501
inadvertently trying to compile it.
502
Changed png_get_header_version() from a function to a macro in png.h
503
Added type casting mostly in pngrtran.c and pngwtran.c
504
Removed some pointless "ptr = NULL" in pngmem.c
505
Added a "contrib" directory containing the source code from Greg's book.
507
version 1.0.5 [October 15, 1999]
508
Minor editing of the INSTALL and README files.
509
version 1.0.5a [October 23, 1999]
510
Added contrib/pngsuite and contrib/pngminus (Willem van Schaik)
511
Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans)
512
Further optimization and bugfix of pngvcrd.c
513
Revised pngset.c so that it does not allocate or free memory in the user's
514
text_ptr structure. Instead, it makes its own copy.
515
Created separate write_end_info_struct in pngtest.c for a more severe test.
516
Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak.
517
version 1.0.5b [November 23, 1999]
518
Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and
519
PNG_FLAG_WROTE_tIME from flags to mode.
520
Added png_write_info_before_PLTE() function.
521
Fixed some typecasting in contrib/gregbook/*.c
522
Updated scripts/makevms.com and added makevms.com to contrib/gregbook
523
and contrib/pngminus (Martin Zinser)
524
version 1.0.5c [November 26, 1999]
525
Moved png_get_header_version from png.h to png.c, to accommodate ansi2knr.
526
Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to
527
accommodate making DLL's: Moved usr_png_ver from global variable to function
528
png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and
529
eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays
530
into pngtypes.h. Eliminated use of global png_pass arrays. Declared the
531
png_CHNK and png_pass arrays to be "const". Made the global arrays
532
available to applications (although none are used in libpng itself) when
533
PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined.
534
Removed some extraneous "-I" from contrib/pngminus/makefile.std
535
Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2.
536
Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3
537
version 1.0.5d [November 29, 1999]
538
Add type cast (png_const_charp) two places in png.c
539
Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays.
540
Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available
541
to applications a macro "PNG_USE_LOCAL_ARRAYS".
542
#ifdef out all the new declarations when PNG_USE_GLOBAL_ARRAYS is defined.
543
Added PNG_EXPORT_VAR macro to accommodate making DLL's.
544
version 1.0.5e [November 30, 1999]
545
Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text
546
structure; refactored the inflate/deflate support to make adding new chunks
547
with trailing compressed parts easier in the future, and added new functions
548
png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP,
549
png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond).
550
NOTE: Applications that write text chunks MUST define png_text->lang
551
before calling png_set_text(). It must be set to NULL if you want to
552
write tEXt or zTXt chunks. If you want your application to be able to
553
run with older versions of libpng, use
555
#ifdef PNG_iTXt_SUPPORTED
556
png_text[i].lang = NULL;
559
Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned
560
offsets (Eric S. Raymond).
561
Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into
562
PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED
563
macros, leaving the separate macros also available.
564
Removed comments on #endifs at the end of many short, non-nested #if-blocks.
565
version 1.0.5f [December 6, 1999]
566
Changed makefile.solaris to issue a warning about potential problems when
567
the ucb "ld" is in the path ahead of the ccs "ld".
568
Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3.
569
Added sCAL chunk support (Eric S. Raymond).
570
version 1.0.5g [December 7, 1999]
571
Fixed "png_free_spallettes" typo in png.h
572
Added code to handle new chunks in pngpread.c
573
Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block
574
Added "translated_key" to png_text structure and png_write_iTXt().
575
Added code in pngwrite.c to work around a newly discovered zlib bug.
576
version 1.0.5h [December 10, 1999]
577
NOTE: regarding the note for version 1.0.5e, the following must also
578
be included in your code:
579
png_text[i].translated_key = NULL;
580
Unknown chunk handling is now supported.
581
Option to eliminate all floating point support was added. Some new
582
fixed-point functions such as png_set_gAMA_fixed() were added.
583
Expanded tabs and removed trailing blanks in source files.
584
version 1.0.5i [December 13, 1999]
585
Added some type casts to silence compiler warnings.
586
Renamed "png_free_spalette" to "png_free_spalettes" for consistency.
587
Removed leading blanks from a #define in pngvcrd.c
588
Added some parameters to the new png_set_keep_unknown_chunks() function.
589
Added a test for up->location != 0 in the first instance of writing
590
unknown chunks in pngwrite.c
591
Changed "num" to "i" in png_free_spalettes() and png_free_unknowns() to
593
Added png_free_hIST() function.
594
Various patches to fix bugs in the sCAL and integer cHRM processing,
595
and to add some convenience macros for use with sCAL.
596
version 1.0.5j [December 21, 1999]
597
Changed "unit" parameter of png_write_sCAL from png_byte to int, to work
598
around buggy compilers.
599
Added new type "png_fixed_point" for integers that hold float*100000 values
600
Restored backward compatibility of tEXt/zTXt chunk processing:
601
Restored the first four members of png_text to the same order as v.1.0.5d.
602
Added members "lang_key" and "itxt_length" to png_text struct. Set
603
text_length=0 when "text" contains iTXt data. Use the "compression"
604
member to distinguish among tEXt/zTXt/iTXt types. Added
605
PNG_ITXT_COMPRESSION_NONE (1) and PNG_ITXT_COMPRESSION_zTXt(2) macros.
606
The "Note" above, about backward incompatibility of libpng-1.0.5e, no
608
Fixed png_read|write_iTXt() to read|write parameters in the right order,
609
and to write the iTXt chunk after IDAT if it appears in the end_ptr.
610
Added pnggccrd.c, version of pngvcrd.c Intel assembler for gcc (Greg Roelofs)
611
Reversed the order of trying to write floating-point and fixed-point gAMA.
612
version 1.0.5k [December 27, 1999]
613
Added many parentheses, e.g., "if (a && b & c)" becomes "if (a && (b & c))"
614
Added png_handle_as_unknown() function (Glenn)
615
Added png_free_chunk_list() function and chunk_list and num_chunk_list members
617
Eliminated erroneous warnings about multiple sPLT chunks and sPLT-after-PLTE.
618
Fixed a libpng-1.0.5h bug in pngrutil.c that was issuing erroneous warnings
619
about ignoring incorrect gAMA with sRGB (gAMA was in fact not ignored)
620
Added png_free_tRNS(); png_set_tRNS() now malloc's its own trans array (ESR).
621
Define png_get_int_32 when oFFs chunk is supported as well as when pCAL is.
622
Changed type of proflen from png_int_32 to png_uint_32 in png_get_iCCP().
623
version 1.0.5l [January 1, 2000]
624
Added functions png_set_read_user_chunk_fn() and png_get_user_chunk_ptr()
625
for setting a callback function to handle unknown chunks and for
626
retrieving the associated user pointer (Glenn).
627
version 1.0.5m [January 7, 2000]
628
Added high-level functions png_read_png(), png_write_png(), png_free_pixels().
629
version 1.0.5n [January 9, 2000]
630
Added png_free_PLTE() function, and modified png_set_PLTE() to malloc its
631
own memory for info_ptr->palette. This makes it safe for the calling
632
application to free its copy of the palette any time after it calls
634
version 1.0.5o [January 20, 2000]
635
Cosmetic changes only (removed some trailing blanks and TABs)
636
version 1.0.5p [January 31, 2000]
637
Renamed pngdll.mak to makefile.bd32
638
Cosmetic changes in pngtest.c
639
version 1.0.5q [February 5, 2000]
640
Relocated the makefile.solaris warning about PATH problems.
641
Fixed pngvcrd.c bug by pushing/popping registers in mmxsupport (Bruce Oberg)
642
Revised makefile.gcmmx
643
Added PNG_SETJMP_SUPPORTED, PNG_SETJMP_NOT_SUPPORTED, and PNG_ABORT() macros
644
version 1.0.5r [February 7, 2000]
645
Removed superfluous prototype for png_get_itxt from png.h
646
Fixed a bug in pngrtran.c that improperly expanded the background color.
647
Return *num_text=0 from png_get_text() when appropriate, and fix documentation
648
of png_get_text() in libpng.txt/libpng.3.
649
version 1.0.5s [February 18, 2000]
650
Added "png_jmp_env()" macro to pngconf.h, to help people migrate to the
651
new error handler that's planned for the next libpng release, and changed
652
example.c, pngtest.c, and contrib programs to use this macro.
653
Revised some of the DLL-export macros in pngconf.h (Greg Roelofs)
654
Fixed a bug in png_read_png() that caused it to fail to expand some images
655
that it should have expanded.
656
Fixed some mistakes in the unused and undocumented INCH_CONVERSIONS functions
658
Changed the allocation of palette, history, and trans arrays back to
659
the version 1.0.5 method (linking instead of copying) which restores
660
backward compatibility with version 1.0.5. Added some remarks about
661
that in example.c. Added "free_me" member to info_ptr and png_ptr
662
and added png_free_data() function.
663
Updated makefile.linux and makefile.gccmmx to make directories conditionally.
664
Made cosmetic changes to pngasmrd.h
665
Added png_set_rows() and png_get_rows(), for use with png_read|write_png().
666
Modified png_read_png() to allocate info_ptr->row_pointers only if it
667
hasn't already been allocated.
668
version 1.0.5t [March 4, 2000]
669
Changed png_jmp_env() migration aiding macro to png_jmpbuf().
670
Fixed "interlace" typo (should be "interlaced") in contrib/gregbook/read2-x.c
671
Fixed bug with use of PNG_BEFORE_IHDR bit in png_ptr->mode, introduced when
672
PNG_FLAG_HAVE_CHUNK_HEADER was moved into png_ptr->mode in version 1.0.5b
673
Files in contrib/gregbook were revised to use png_jmpbuf() and to select
674
a 24-bit visual if one is available, and to allow abbreviated options.
675
Files in contrib/pngminus were revised to use the png_jmpbuf() macro.
676
Removed spaces in makefile.linux and makefile.gcmmx, introduced in 1.0.5s
677
version 1.0.5u [March 5, 2000]
678
Simplified the code that detects old png.h in png.c and pngtest.c
679
Renamed png_spalette (_p, _pp) to png_sPLT_t (_tp, _tpp)
680
Increased precision of rgb_to_gray calculations from 8 to 15 bits and
681
added png_set_rgb_to_gray_fixed() function.
682
Added makefile.bc32 (32-bit Borland C++, C mode)
683
version 1.0.5v [March 11, 2000]
684
Added some parentheses to the png_jmpbuf macro definition.
685
Updated references to the zlib home page, which has moved to freesoftware.com.
686
Corrected bugs in documentation regarding png_read_row() and png_write_row().
687
Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt.
688
Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3,
689
revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin)
691
version 1.0.6 [March 20, 2000]
692
Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c
693
Added makefile.sggcc (SGI IRIX with gcc)
694
version 1.0.6d [April 7, 2000]
695
Changed sprintf() to strcpy() in png_write_sCAL_s() to work without STDIO
696
Added data_length parameter to png_decompress_chunk() function
697
Revised documentation to remove reference to abandoned png_free_chnk functions
698
Fixed an error in png_rgb_to_gray_fixed()
699
Revised example.c, usage of png_destroy_write_struct().
700
Renamed makefile.ibmvac3 to makefile.ibmc, added libpng.icc IBM project file
701
Added a check for info_ptr->free_me&PNG_FREE_TEXT when freeing text in png.c
702
Simplify png_sig_bytes() function to remove use of non-ISO-C strdup().
703
version 1.0.6e [April 9, 2000]
704
Added png_data_freer() function.
705
In the code that checks for over-length tRNS chunks, added check of
706
info_ptr->num_trans as well as png_ptr->num_trans (Matthias Benckmann)
707
Minor revisions of libpng.txt/libpng.3.
708
Check for existing data and free it if the free_me flag is set, in png_set_*()
710
Only define PNG_WEIGHTED_FILTERS_SUPPORTED when PNG_FLOATING_POINT_SUPPORTED
712
Changed several instances of PNG_NO_CONSOLE_ID to PNG_NO_STDIO in pngrutil.c
713
and mentioned the purposes of the two macros in libpng.txt/libpng.3.
714
version 1.0.6f [April 14, 2000]
715
Revised png_set_iCCP() and png_set_rows() to avoid prematurely freeing data.
716
Add checks in png_set_text() for NULL members of the input text structure.
717
Revised libpng.txt/libpng.3.
718
Removed superfluous prototype for png_set_itxt from png.h
719
Removed "else" from pngread.c, after png_error(), and changed "0" to "length".
720
Changed several png_errors about malformed ancillary chunks to png_warnings.
721
version 1.0.6g [April 24, 2000]
722
Added png_pass-* arrays to pnggccrd.c when PNG_USE_LOCAL_ARRAYS is defined.
723
Relocated paragraph about png_set_background() in libpng.3/libpng.txt
724
and other revisions (Matthias Benckmann)
725
Relocated info_ptr->free_me, png_ptr->free_me, and other info_ptr and
726
png_ptr members to restore binary compatibility with libpng-1.0.5
727
(breaks compatibility with libpng-1.0.6).
728
version 1.0.6h [April 24, 2000]
729
Changed shared library so-number pattern from 2.x.y.z to xy.z (this builds
730
libpng.so.10 & libpng.so.10.6h instead of libpng.so.2 & libpng.so.2.1.0.6h)
731
This is a temporary change for test purposes.
732
version 1.0.6i [May 2, 2000]
733
Rearranged some members at the end of png_info and png_struct, to put
734
unknown_chunks_num and free_me within the original size of the png_structs
735
and free_me, png_read_user_fn, and png_free_fn within the original png_info,
736
because some old applications allocate the structs directly instead of
737
using png_create_*().
738
Added documentation of user memory functions in libpng.txt/libpng.3
739
Modified png_read_png so that it will use user_allocated row_pointers
740
if present, unless free_me directs that it be freed, and added description
741
of the use of png_set_rows() and png_get_rows() in libpng.txt/libpng.3.
742
Added PNG_LEGACY_SUPPORTED macro, and #ifdef out all new (since version
743
1.00) members of png_struct and png_info, to regain binary compatibility
744
when you define this macro. Capabilities lost in this event
745
are user transforms (new in version 1.0.0),the user transform pointer
746
(new in version 1.0.2), rgb_to_gray (new in 1.0.5), iCCP, sCAL, sPLT,
747
the high-level interface, and unknown chunks support (all new in 1.0.6).
748
This was necessary because of old applications that allocate the structs
749
directly as authors were instructed to do in libpng-0.88 and earlier,
750
instead of using png_create_*().
751
Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which
752
can be used to detect codes that directly allocate the structs, and
753
code to check these modes in png_read_init() and png_write_init() and
754
generate a libpng error if the modes aren't set and PNG_LEGACY_SUPPORTED
756
Added makefile.intel and updated makefile.watcom (Pawel Mrochen)
757
version 1.0.6j [May 3, 2000]
758
Overloaded png_read_init() and png_write_init() with macros that convert
759
calls to png_read_init_2() or png_write_init_2() that check the version
761
version 1.0.7beta11 [May 7, 2000]
762
Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes
763
which are no longer used.
764
Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is
765
defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXT_SUPPORTED
767
Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory
768
overrun when old applications fill the info_ptr->text structure directly.
769
Added PNGAPI macro, and added it to the definitions of all exported functions.
770
Relocated version macro definitions ahead of the includes of zlib.h and
772
version 1.0.7beta12 [May 12, 2000]
773
Revised pngset.c to avoid a problem with expanding the png_debug macro.
774
Deleted some extraneous defines from pngconf.h
775
Made PNG_NO_CONSOLE_IO the default condition when PNG_BUILD_DLL is defined.
776
Use MSC _RPTn debugging instead of fprintf if _MSC_VER is defined.
777
Added png_access_version_number() function.
778
Check for mask&PNG_FREE_CHNK (for TEXT, SCAL, PCAL) in png_free_data().
779
Expanded libpng.3/libpng.txt information about png_data_freer().
780
version 1.0.7beta14 [May 17, 2000] (beta13 was not published)
781
Changed pnggccrd.c and pngvcrd.c to handle bad adaptive filter types as
782
warnings instead of errors, as pngrutil.c does.
783
Set the PNG_INFO_IDAT valid flag in png_set_rows() so png_write_png()
784
will actually write IDATs.
785
Made the default PNG_USE_LOCAL_ARRAYS depend on PNG_DLL instead of WIN32.
786
Make png_free_data() ignore its final parameter except when freeing data
787
that can have multiple instances (text, sPLT, unknowns).
788
Fixed a new bug in png_set_rows().
789
Removed info_ptr->valid tests from png_free_data(), as in version 1.0.5.
790
Added png_set_invalid() function.
791
Fixed incorrect illustrations of png_destroy_write_struct() in example.c.
792
version 1.0.7beta15 [May 30, 2000]
793
Revised the deliberately erroneous Linux setjmp code in pngconf.h to produce
794
fewer error messages.
795
Rearranged checks for Z_OK to check the most likely path first in pngpread.c
797
Added checks in pngtest.c for png_create_*() returning NULL, and mentioned
798
in libpng.txt/libpng.3 the need for applications to check this.
799
Changed names of png_default_*() functions in pngtest to pngtest_*().
800
Changed return type of png_get_x|y_offset_*() from png_uint_32 to png_int_32.
801
Fixed some bugs in the unused PNG_INCH_CONVERSIONS functions in pngget.c
802
Set each pointer to NULL after freeing it in png_free_data().
803
Worked around a problem in pngconf.h; AIX's strings.h defines an "index"
804
macro that conflicts with libpng's png_color_16.index. (Dimitri Papadapoulos)
805
Added "msvc" directory with MSVC++ project files (Simon-Pierre Cadieux).
806
version 1.0.7beta16 [June 4, 2000]
807
Revised the workaround of AIX string.h "index" bug.
808
Added a check for overlength PLTE chunk in pngrutil.c.
809
Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer
810
indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler.
811
Added a warning in png_decompress_chunk() when it runs out of data, e.g.
812
when it tries to read an erroneous PhotoShop iCCP chunk.
813
Added PNG_USE_DLL macro.
814
Revised the copyright/disclaimer/license notice.
815
Added contrib/msvctest directory
816
version 1.0.7rc1 [June 9, 2000]
817
Corrected the definition of PNG_TRANSFORM_INVERT_ALPHA (0x0400 not 0x0200)
818
Added contrib/visupng directory (Willem van Schaik)
819
version 1.0.7beta18 [June 23, 2000]
820
Revised PNGAPI definition, and pngvcrd.c to work with __GCC__
821
and do not redefine PNGAPI if it is passed in via a compiler directive.
822
Revised visupng/PngFile.c to remove returns from within the Try block.
823
Removed leading underscores from "_PNG_H" and "_PNG_SAVE_BSD_SOURCE" macros.
824
Updated contrib/visupng/cexcept.h to version 1.0.0.
825
Fixed bugs in pngwrite.c and pngwutil.c that prevented writing iCCP chunks.
826
version 1.0.7rc2 [June 28, 2000]
827
Updated license to include disclaimers required by UCITA.
828
Fixed "DJBPP" typo in pnggccrd.c introduced in beta18.
830
version 1.0.7 [July 1, 2000]
831
Revised the definition of "trans_values" in libpng.3/libpng.txt
832
version 1.0.8beta1 [July 8, 2000]
833
Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks.
834
Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and
836
Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h.
837
Removed unused "#include <assert.h>" from png.c
838
Added WindowsCE support.
839
Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment.
840
version 1.0.8beta2 [July 10, 2000]
841
Added project files to the wince directory and made further revisions
842
of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE.
843
version 1.0.8beta3 [July 11, 2000]
844
Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS()
845
for indexed-color input files to avoid potential double-freeing trans array
846
under some unusual conditions; problem was introduced in version 1.0.6f.
847
Further revisions to pngtest.c and files in the wince subdirectory.
848
version 1.0.8beta4 [July 14, 2000]
849
Added the files pngbar.png and pngbar.jpg to the distribution.
850
Added makefile.cygwin, and cygwin support in pngconf.h
851
Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory)
852
version 1.0.8rc1 [July 16, 2000]
853
Revised png_debug() macros and statements to eliminate compiler warnings.
855
version 1.0.8 [July 24, 2000]
856
Added png_flush() in pngwrite.c, after png_write_IEND().
857
Updated makefile.hpux to build a shared library.
858
version 1.0.9beta1 [November 10, 2000]
859
Fixed typo in scripts/makefile.hpux
860
Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)
861
Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
862
Changed "cdrom.com" in documentation to "libpng.org"
863
Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).
864
Changed type of "params" from voidp to png_voidp in png_read|write_png().
865
Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h.
866
Revised the 3 instances of WRITEFILE in pngtest.c.
867
Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory.
868
Updated png.rc in dll/msvc project
869
Revised makefile.dec to define and use LIBPATH and INCPATH
870
Increased size of global png_libpng_ver[] array from 12 to 18 chars.
871
Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const.
872
Removed duplicate png_crc_finish() from png_handle_bKGD() function.
873
Added a warning when application calls png_read_update_info() multiple times.
874
Revised makefile.cygwin
875
Fixed bugs in iCCP support in pngrutil.c and pngwutil.c.
876
Replaced png_set_empty_plte_permitted() with png_permit_mng_features().
877
version 1.0.9beta2 [November 19, 2000]
878
Renamed the "dll" subdirectory "projects".
879
Added borland project files to "projects" subdirectory.
880
Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate.
881
Add error message in png_set_compression_buffer_size() when malloc fails.
882
version 1.0.9beta3 [November 23, 2000]
883
Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project.
884
Removed the png_flush() in pngwrite.c that crashes some applications
885
that don't set png_output_flush_fn.
886
Added makefile.macosx and makefile.aix to scripts directory.
887
version 1.0.9beta4 [December 1, 2000]
888
Change png_chunk_warning to png_warning in png_check_keyword().
889
Increased the first part of msg buffer from 16 to 18 in png_chunk_error().
890
version 1.0.9beta5 [December 15, 2000]
891
Added support for filter method 64 (for PNG datastreams embedded in MNG).
892
version 1.0.9beta6 [December 18, 2000]
893
Revised png_set_filter() to accept filter method 64 when appropriate.
894
Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to
895
help prevent applications from using MNG features in PNG datastreams.
896
Added png_permit_mng_features() function.
897
Revised libpng.3/libpng.txt. Changed "filter type" to "filter method".
898
version 1.0.9rc1 [December 23, 2000]
899
Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c
900
Fixed error handling of unknown compression type in png_decompress_chunk().
901
In pngconf.h, define __cdecl when _MSC_VER is defined.
902
version 1.0.9beta7 [December 28, 2000]
903
Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.
904
Revised memory management in png_set_hIST and png_handle_hIST in a backward
905
compatible manner. PLTE and tRNS were revised similarly.
906
Revised the iCCP chunk reader to ignore trailing garbage.
907
version 1.0.9beta8 [January 12, 2001]
908
Moved pngasmrd.h into pngconf.h.
909
Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop.
910
version 1.0.9beta9 [January 15, 2001]
911
Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to
912
wince and msvc project module definition files.
913
Minor revision of makefile.cygwin.
914
Fixed bug with progressive reading of narrow interlaced images in pngpread.c
915
version 1.0.9beta10 [January 16, 2001]
916
Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined.
917
Fixed "png_mmx_supported" typo in project definition files.
918
version 1.0.9beta11 [January 19, 2001]
919
Updated makefile.sgi to make shared library.
920
Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED
921
by default, for the benefit of DLL forward compatibility. These will
922
be re-enabled in version 1.2.0.
923
version 1.0.9rc2 [January 22, 2001]
924
Revised cygwin support.
926
version 1.0.9 [January 31, 2001]
927
Added check of cygwin's ALL_STATIC in pngconf.h
928
Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos.
929
version 1.0.10beta1 [March 14, 2001]
930
Revised makefile.dec, makefile.sgi, and makefile.sggcc; added makefile.hpgcc.
931
Reformatted libpng.3 to eliminate bad line breaks.
932
Added checks for _mmx_supported in the read_filter_row function of pnggccrd.c
933
Added prototype for png_mmx_support() near the top of pnggccrd.c
934
Moved some error checking from png_handle_IHDR to png_set_IHDR.
935
Added PNG_NO_READ_SUPPORTED and PNG_NO_WRITE_SUPPORTED macros.
936
Revised png_mmx_support() function in pnggccrd.c
937
Restored version 1.0.8 PNG_WRITE_EMPTY_PLTE_SUPPORTED behavior in pngwutil.c
938
Fixed memory leak in contrib/visupng/PngFile.c
939
Fixed bugs in png_combine_row() in pnggccrd.c and pngvcrd.c (C version)
940
Added warnings when retrieving or setting gamma=0.
941
Increased the first part of msg buffer from 16 to 18 in png_chunk_warning().
942
version 1.0.10rc1 [March 23, 2001]
943
Changed all instances of memcpy, strcpy, and strlen to png_memcpy, png_strcpy,
945
Revised png_mmx_supported() function in pnggccrd.c to return proper value.
946
Fixed bug in progressive reading (pngpread.c) with small images (height < 8).
948
version 1.0.10 [March 30, 2001]
949
Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin
950
Added beos project files (Chris Herborth)
951
version 1.0.11beta1 [April 3, 2001]
952
Added type casts on several png_malloc() calls (Dimitri Papadapoulos).
953
Removed a no-longer needed AIX work-around from pngconf.h
954
Changed several "//" single-line comments to C-style in pnggccrd.c
955
version 1.0.11beta2 [April 11, 2001]
956
Removed PNGAPI from several functions whose prototypes did not have PNGAPI.
957
Updated scripts/pngos2.def
958
version 1.0.11beta3 [April 14, 2001]
959
Added checking the results of many instances of png_malloc() for NULL
960
version 1.0.11beta4 [April 20, 2001]
961
Undid the changes from version 1.0.11beta3. Added a check for NULL return
962
from user's malloc_fn().
963
Removed some useless type casts of the NULL pointer.
964
Added makefile.netbsd
966
version 1.0.11 [April 27, 2001]
967
Revised makefile.netbsd
968
version 1.0.12beta1 [May 14, 2001]
969
Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot)
970
Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h
971
Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings.
972
Eliminated the png_error about apps using png_read|write_init(). Instead,
973
libpng will reallocate the png_struct and info_struct if they are too small.
974
This retains future binary compatibility for old applications written for
975
libpng-0.88 and earlier.
976
version 1.2.0beta1 [May 6, 2001]
978
Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED
980
Added runtime selection of MMX features.
981
Added png_set_strip_error_numbers function and related macros.
982
version 1.2.0beta2 [May 7, 2001]
983
Finished merging 1.2.0beta1 with version 1.0.11
984
Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
985
version 1.2.0beta3 [May 17, 2001]
986
Enabled user memory function by default.
987
Modified png_create_struct so it passes user mem_ptr to user memory allocator.
988
Increased png_mng_features flag from png_byte to png_uint_32.
989
Bumped shared-library (so-number) and dll-number to 3.
990
version 1.2.0beta4 [June 23, 2001]
991
Check for missing profile length field in iCCP chunk and free chunk_data
992
in case of truncated iCCP chunk.
993
Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc
994
Bumped dll-number from 2 to 3 in makefile.cygwin
995
Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly
996
if user attempts to run it on an 8-bit display.
997
Updated contrib/gregbook
998
Use png_malloc instead of png_zalloc to allocate palette in pngset.c
999
Updated makefile.ibmc
1000
Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes
1001
of png_write_oFFS width and height from png_uint_32 to png_int_32.
1003
Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c
1004
version 1.2.0beta5 [August 8, 2001]
1005
Revised contrib/gregbook
1006
Revised makefile.gcmmx
1007
Revised pnggccrd.c to conditionally compile some thread-unsafe code only
1008
when PNG_THREAD_UNSAFE_OK is defined.
1009
Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with
1010
value exceeding 2^bit_depth-1
1011
Revised makefile.sgi and makefile.sggcc
1012
Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c
1013
Removed restriction that do_invert_mono only operate on 1-bit opaque files
1015
version 1.2.0 [September 1, 2001]
1016
Changed a png_warning() to png_debug() in pnggccrd.c
1017
Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC().
1018
version 1.2.1beta1 [October 19, 2001]
1019
Revised makefile.std in contrib/pngminus
1020
Include background_1 in png_struct regardless of gamma support.
1021
Revised makefile.netbsd and makefile.macosx, added makefile.darwin.
1022
Revised example.c to provide more details about using row_callback().
1023
version 1.2.1beta2 [October 25, 2001]
1024
Added type cast to each NULL appearing in a function call, except for
1027
version 1.2.1beta3 [October 27, 2001]
1028
Removed type casts from all NULLs.
1029
Simplified png_create_struct_2().
1030
version 1.2.1beta4 [November 7, 2001]
1031
Revised png_create_info_struct() and png_creat_struct_2().
1032
Added error message if png_write_info() was omitted.
1033
Type cast NULLs appearing in function calls when _NO_PROTO or
1034
PNG_TYPECAST_NULL is defined.
1035
version 1.2.1rc1 [November 24, 2001]
1036
Type cast NULLs appearing in function calls except when PNG_NO_TYPECAST_NULL
1038
Changed typecast of "size" argument to png_size_t in pngmem.c calls to
1039
the user malloc_fn, to agree with the prototype in png.h
1040
Added a pop/push operation to pnggccrd.c, to preserve Eflag (Maxim Sobolev)
1041
Updated makefile.sgi to recognize LIBPATH and INCPATH.
1042
Updated various makefiles so "make clean" does not remove previous major
1043
version of the shared library.
1044
version 1.2.1rc2 [December 4, 2001]
1045
Always allocate 256-entry internal palette, hist, and trans arrays, to
1046
avoid out-of-bounds memory reference caused by invalid PNG datastreams.
1047
Added a check for prefix_length > data_length in iCCP chunk handler.
1049
version 1.2.1 [December 7, 2001]
1051
version 1.2.2beta1 [February 22, 2002]
1052
Fixed a bug with reading the length of iCCP profiles (Larry Reeves).
1053
Revised makefile.linux, makefile.gcmmx, and makefile.sgi to generate
1054
libpng.a, libpng12.so (not libpng.so.3), and libpng12/png.h
1055
Revised makefile.darwin to remove "-undefined suppress" option.
1056
Added checks for gamma and chromaticity values over 21474.83, which exceed
1057
the limit for PNG unsigned 32-bit integers when encoded.
1058
Revised calls to png_create_read_struct() and png_create_write_struct()
1059
for simpler debugging.
1060
Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK)
1061
version 1.2.2beta2 [February 23, 2002]
1062
Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths.
1063
Check for invalid image dimensions in png_get_IHDR.
1064
Added missing "fi;" in the install target of the SGI makefiles.
1065
Added install-static to all makefiles that make shared libraries.
1066
Always do gamma compensation when image is partially transparent.
1067
version 1.2.2beta3 [March 7, 2002]
1068
Compute background.gray and background_1.gray even when color_type is RGB
1069
in case image gets reduced to gray later.
1070
Modified shared-library makefiles to install pkgconfig/libpngNN.pc.
1071
Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown
1072
Removed unused png_write_destroy_info prototype from png.h
1073
Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case
1074
Added install-shared target to all makefiles that make shared libraries.
1075
Stopped a double free of palette, hist, and trans when not using free_me.
1076
Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64.
1077
version 1.2.2beta4 [March 8, 2002]
1078
Compute background.gray and background_1.gray even when color_type is RGB
1079
in case image gets reduced to gray later (Jason Summers).
1080
Relocated a misplaced /bin/rm in the "install-shared" makefile targets
1081
Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library.
1082
version 1.2.2beta5 [March 26, 2002]
1083
Added missing PNGAPI to several function definitions.
1084
Check for invalid bit_depth or color_type in png_get_IHDR(), and
1085
check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen).
1086
Revised iTXt support to accept NULL for lang and lang_key.
1087
Compute gamma for color components of background even when color_type is gray.
1088
Changed "()" to "{}" in scripts/libpng.pc.in.
1089
Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN
1090
Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so
1091
version 1.2.2beta6 [March 31, 2002]
1092
version 1.0.13beta1 [March 31, 2002]
1093
Prevent png_zalloc() from trying to memset memory that it failed to acquire.
1094
Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate).
1095
Ensure that the right function (user or default) is used to free the
1096
png_struct after an error in png_create_read_struct_2().
1097
version 1.2.2rc1 [April 7, 2002]
1098
version 1.0.13rc1 [April 7, 2002]
1099
Save the ebx register in pnggccrd.c (Sami Farin)
1100
Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner).
1101
Updated makefiles to put headers in include/libpng and remove old include/*.h.
1103
version 1.2.2 [April 15, 2002]
1104
version 1.0.13 [April 15, 2002]
1105
Revised description of png_set_filter() in libpng.3/libpng.txt.
1106
Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd
1107
version 1.0.13patch01 [April 17, 2002]
1108
version 1.2.2patch01 [April 17, 2002]
1109
Changed ${PNGMAJ}.${PNGVER} bug to ${PNGVER} in makefile.sgi and makefile.sggcc
1110
Fixed VER -> PNGVER typo in makefile.macosx and added install-static to install
1111
Added install: target to makefile.32sunu and makefile.64sunu
1112
version 1.0.13patch03 [April 18, 2002]
1113
version 1.2.2patch03 [April 18, 2002]
1114
Revised 15 makefiles to link libpng.a to libpngNN.a and the include libpng
1115
subdirectory to libpngNN subdirectory without the full pathname.
1116
Moved generation of libpng.pc from "install" to "all" in 15 makefiles.
1117
version 1.2.3rc1 [April 28, 2002]
1118
Added install-man target to 15 makefiles (Dimitri Papadopolous-Orfanos).
1119
Added $(DESTDIR) feature to 24 makefiles (Tim Mooney)
1120
Fixed bug with $prefix, should be $(prefix) in makefile.hpux.
1121
Updated cygwin-specific portion of pngconf.h and revised makefile.cygwin
1122
Added a link from libpngNN.pc to libpng.pc in 15 makefiles.
1123
Added links from include/libpngNN/*.h to include/*.h in 24 makefiles.
1124
Revised makefile.darwin to make relative links without full pathname.
1125
Added setjmp() at the end of png_create_*_struct_2() in case user forgets
1126
to put one in their application.
1127
Restored png_zalloc() and png_zfree() prototypes to version 1.2.1 and
1128
removed them from module definition files.
1129
version 1.2.3rc2 [May 1, 2002]
1130
Fixed bug in reporting number of channels in pngget.c and pngset.c,
1131
that was introduced in version 1.2.2beta5.
1132
Exported png_zalloc(), png_zfree(), png_default_read(), png_default_write(),
1133
png_default_flush(), and png_push_fill_buffer() and included them in
1134
module definition files.
1135
Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles.
1136
version 1.2.3rc3 [May 1, 2002]
1137
Revised prototype for png_default_flush()
1138
Remove old libpng.pc and libpngNN.pc before installing new ones.
1139
version 1.2.3rc4 [May 2, 2002]
1140
Typos in *.def files (png_default_read|write -> png_default_read|write_data)
1141
In makefiles, changed rm libpng.NN.pc to rm libpngNN.pc
1142
Added libpng-config and libpngNN-config and modified makefiles to install them.
1143
Changed $(MANPATH) to $(DESTDIR)$(MANPATH) in makefiles
1144
Added "Win32 DLL VB" configuration to projects/msvc/libpng.dsp
1145
version 1.2.3rc5 [May 11, 2002]
1146
Changed "error" and "message" in prototypes to "error_message" and
1147
"warning_message" to avoid namespace conflict.
1148
Revised 15 makefiles to build libpng-config from libpng-config-*.in
1149
Once more restored png_zalloc and png_zfree to regular nonexported form.
1150
Restored png_default_read|write_data, png_default_flush, png_read_fill_buffer
1151
to nonexported form, but with PNGAPI, and removed them from module def files.
1152
version 1.2.3rc6 [May 14, 2002]
1153
Removed "PNGAPI" from png_zalloc() and png_zfree() in png.c
1154
Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp.
1155
Removed leftover libpng-config "sed" script from four makefiles.
1156
Revised libpng-config creating script in 16 makefiles.
1158
version 1.2.3 [May 22, 2002]
1159
Revised libpng-config target in makefile.cygwin.
1160
Removed description of png_set_mem_fn() from documentation.
1161
Revised makefile.freebsd.
1162
Minor cosmetic changes to 15 makefiles, e.g., $(DI) = $(DESTDIR)/$(INCDIR).
1163
Revised projects/msvc/README.txt
1164
Changed -lpng to -lpngNN in LDFLAGS in several makefiles.
1165
version 1.2.4beta1 [May 24, 2002]
1166
Added libpng.pc and libpng-config to "all:" target in 16 makefiles.
1167
Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH)
1168
Added missing "\" before closing double quote in makefile.gcmmx.
1169
Plugged various memory leaks; added png_malloc_warn() and png_set_text_2()
1171
version 1.2.4beta2 [June 25, 2002]
1172
Plugged memory leak of png_ptr->current_text (Matt Holgate).
1173
Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison)
1174
Added -soname to the loader flags in makefile.dec, makefile.sgi, and
1176
Added "test-installed" target to makefile.linux, makefile.gcmmx,
1177
makefile.sgi, and makefile.sggcc.
1178
version 1.2.4beta3 [June 28, 2002]
1179
Plugged memory leak of row_buf in pngtest.c when there is a png_error().
1180
Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data.
1181
Added "test-installed" target to makefile.32sunu, makefile.64sunu,
1182
makefile.beos, makefile.darwin, makefile.dec, makefile.macosx,
1183
makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9.
1184
version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002]
1185
Added "test-installed" target to makefile.cygwin and makefile.sco.
1186
Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro.
1188
version 1.2.4 and 1.0.14 [July 8, 2002]
1189
Changed png_warning() to png_error() when width is too large to process.
1190
version 1.2.4patch01 [July 20, 2002]
1191
Revised makefile.cygwin to use DLL number 12 instead of 13.
1192
version 1.2.5beta1 [August 6, 2002]
1193
Added code to contrib/gregbook/readpng2.c to ignore unused chunks.
1194
Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11)
1195
Removed some stray *.o files from contrib/gregbook.
1196
Changed png_error() to png_warning() about "Too much data" in pngpread.c
1197
and about "Extra compressed data" in pngrutil.c.
1198
Prevent png_ptr->pass from exceeding 7 in png_push_finish_row().
1199
Updated makefile.hpgcc
1200
Updated png.c and pnggccrd.c handling of return from png_mmx_support()
1201
version 1.2.5beta2 [August 15, 2002]
1202
Only issue png_warning() about "Too much data" in pngpread.c when avail_in
1204
Updated makefiles to install a separate libpng.so.3 with its own rpath.
1205
version 1.2.5rc1 and 1.0.15rc1 [August 24, 2002]
1206
Revised makefiles to not remove previous minor versions of shared libraries.
1207
version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002]
1208
Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared
1209
library loader directive.
1210
Added missing "$OBJSDLL" line to makefile.gcmmx.
1211
Added missing "; fi" to makefile.32sunu.
1212
version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002]
1213
Revised libpng-config script.
1215
version 1.2.5 and 1.0.15 [October 3, 2002]
1216
Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux,
1218
Relocated two misplaced PNGAPI lines in pngtest.c
1219
version 1.2.6beta1 [October 22, 2002]
1220
Commented out warning about uninitialized mmx_support in pnggccrd.c.
1221
Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h.
1222
Relocated two more misplaced PNGAPI lines in pngtest.c
1223
Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams,
1224
introduced in version 1.0.2.
1225
Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu.
1226
version 1.2.6beta2 [November 1, 2002]
1227
Added libpng-config "--ldopts" output.
1228
Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)"
1230
version 1.2.6beta3 [July 18, 2004]
1231
Reverted makefile changes from version 1.2.6beta2 and some of the changes
1232
from version 1.2.6beta1; these will be postponed until version 1.2.7.
1233
Version 1.2.6 is going to be a simple bugfix release.
1234
Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile.
1235
Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
1236
Added "#!/bin/sh" at the top of configure, for recognition of the
1237
'x' flag under Cygwin (Cosmin).
1238
Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin).
1239
Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin).
1240
Fixed the special memory handler for Borland C under DOS, in pngmem.c
1242
Removed some spurious assignments in pngrutil.c (Cosmin).
1243
Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings
1244
on 16-bit platforms (Cosmin).
1245
Enclosed shift op expressions in parentheses, to silence warnings (Cosmin).
1246
Used proper type png_fixed_point, to avoid problems on 16-bit platforms,
1247
in png_handle_sRGB() (Cosmin).
1248
Added compression_type to png_struct, and optimized the window size
1249
inside the deflate stream (Cosmin).
1250
Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin).
1251
Fixed handling of unknown chunks that come after IDAT (Cosmin).
1252
Allowed png_error() and png_warning() to work even if png_ptr == NULL
1254
Replaced row_info->rowbytes with row_bytes in png_write_find_filter()
1256
Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre).
1257
Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded
1258
values in png.c (Simon-Pierre, Cosmin).
1259
Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre).
1260
Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc
1262
Moved the definition of PNG_HEADER_VERSION_STRING near the definitions
1263
of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin).
1264
Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin).
1265
Updated scripts/makefile.vc(a)win32 (Cosmin).
1266
Updated the MSVC project (Simon-Pierre, Cosmin).
1267
Updated the Borland C++ Builder project (Cosmin).
1268
Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin).
1269
Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin).
1270
Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin).
1271
Added extra guard around inclusion of Turbo C memory headers, in pngconf.h
1273
Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to
1274
projects/cbuilder5/ (Cosmin).
1275
Moved projects/visualc6/png32ms.def to scripts/pngw32.def,
1276
and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin).
1277
Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin).
1278
Changed line endings to DOS style in cbuilder5 and visualc6 files, even
1279
in the tar.* distributions (Cosmin).
1280
Updated contrib/visupng/VisualPng.dsp (Cosmin).
1281
Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin).
1282
Added a separate distribution with "configure" and supporting files (Junichi).
1283
version 1.2.6beta4 [July 28, 2004]
1284
Added user ability to change png_size_t via a PNG_SIZE_T macro.
1285
Added png_sizeof() and png_convert_size() functions.
1286
Added PNG_SIZE_MAX (maximum value of a png_size_t variable.
1287
Added check in png_malloc_default() for (size_t)size != (png_uint_32)size
1288
which would indicate an overflow.
1289
Changed sPLT failure action from png_error to png_warning and abandon chunk.
1290
Changed sCAL and iCCP failures from png_error to png_warning and abandon.
1291
Added png_get_uint_31(png_ptr, buf) function.
1292
Added PNG_UINT_32_MAX macro.
1293
Renamed PNG_MAX_UINT to PNG_UINT_31_MAX.
1294
Made png_zalloc() issue a png_warning and return NULL on potential
1296
Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x
1297
Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4.
1298
Revised Borland portion of png_malloc() to return NULL or issue
1299
png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK.
1300
Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove
1301
sequential read support.
1302
Added some "#if PNG_WRITE_SUPPORTED" blocks.
1303
#ifdef'ed out some redundancy in png_malloc_default().
1304
Use png_malloc instead of png_zalloc to allocate the pallete.
1305
version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004]
1306
Fixed buffer overflow vulnerability in png_handle_tRNS()
1307
Fixed integer arithmetic overflow vulnerability in png_read_png().
1308
Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
1309
duplicate chunk types to go undetected.
1310
Fixed some timestamps in the -config version
1311
Rearranged order of processing of color types in png_handle_tRNS().
1312
Added ROWBYTES macro to calculate rowbytes without integer overflow.
1313
Updated makefile.darwin and removed makefile.macosx from scripts directory.
1314
Imposed default one million column, one-million row limits on the image
1315
dimensions, and added png_set_user_limits() function to override them.
1316
Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro.
1317
Fixed wrong cast of returns from png_get_user_width|height_max().
1318
Changed some "keep the compiler happy" from empty statements to returns,
1319
Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution
1320
version 1.0.16rc2 and 1.2.6rc2 [August 7, 2004]
1321
Revised makefile.darwin and makefile.solaris. Removed makefile.macosx.
1322
Revised pngtest's png_debug_malloc() to use png_malloc() instead of
1323
png_malloc_default() which is not supposed to be exported.
1324
Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in
1325
pngpread.c. Bug was introduced in 1.2.6rc1.
1326
Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1.
1327
Fixed old bug in RGB to Gray transformation.
1328
Fixed problem with 64-bit compilers by casting arguments to abs()
1330
Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9).
1331
Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin)
1332
Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles.
1333
Added code to update the row_info->colortype in png_do_read_filler() (MSB).
1334
version 1.0.16rc3 and 1.2.6rc3 [August 9, 2004]
1335
Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid
1336
trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro.
1337
Revised documentation of png_set_keep_unknown_chunks().
1338
Check handle_as_unknown status in pngpread.c, as in pngread.c previously.
1339
Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h
1340
Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c
1341
version 1.0.16rc4 and 1.2.6rc4 [August 10, 2004]
1342
Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of
1343
"pinfo" was out of place).
1344
version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004]
1345
Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED
1346
section of png.h where they were inadvertently placed in version rc3.
1348
version 1.2.6 and 1.0.16 [August 15, 2004]
1349
Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
1350
version 1.2.7beta1 [August 26, 2004]
1351
Removed unused pngasmrd.h file.
1352
Removed references to uu.net for archived files. Added references to
1353
PNG Spec (second edition) and the PNG ISO/IEC Standard.
1354
Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR.
1355
Fixed bug with "optimized window size" in the IDAT datastream, that
1356
causes libpng to write PNG files with incorrect zlib header bytes.
1357
version 1.2.7beta2 [August 28, 2004]
1358
Fixed bug with sCAL chunk and big-endian machines (David Munro).
1359
Undid new code added in 1.2.6rc2 to update the color_type in
1361
Added png_set_add_alpha() that updates color type.
1362
version 1.0.17rc1 and 1.2.7rc1 [September 4, 2004]
1363
Revised png_set_strip_filler() to not remove alpha if color_type has alpha.
1365
version 1.2.7 and 1.0.17 [September 12, 2004]
1367
Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin
1368
version 1.2.8beta1 [November 1, 2004]
1369
Fixed bug in png_text_compress() that would fail to complete a large block.
1370
Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during
1371
strip alpha operation in png_do_strip_filler().
1372
Added PNG_1_2_X definition in pngconf.h
1373
#ifdef out png_info_init in png.c and png_read_init in pngread.c (as of 1.3.0)
1374
version 1.2.8beta2 [November 2, 2004]
1375
Reduce color_type to a nonalpha type after strip alpha operation in
1376
png_do_strip_filler().
1377
version 1.2.8beta3 [November 3, 2004]
1378
Revised definitions of PNG_MAX_UINT_32, PNG_MAX_SIZE, and PNG_MAXSUM
1379
version 1.2.8beta4 [November 12, 2004]
1380
Fixed (again) definition of PNG_LIBPNG_VER_DLLNUM in png.h (Cosmin).
1381
Added PNG_LIBPNG_BUILD_PRIVATE in png.h (Cosmin).
1382
Set png_ptr->zstream.data_type to Z_BINARY, to avoid unnecessary detection
1383
of data type in deflate (Cosmin).
1384
Deprecated but continue to support SPECIALBUILD and PRIVATEBUILD in favor of
1385
PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING.
1386
version 1.2.8beta5 [November 20, 2004]
1387
Use png_ptr->flags instead of png_ptr->transformations to pass
1388
PNG_STRIP_ALPHA info to png_do_strip_filler(), to preserve ABI
1390
Revised handling of SPECIALBUILD, PRIVATEBUILD,
1391
PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING.
1392
version 1.2.8rc1 [November 24, 2004]
1393
Moved handling of BUILD macros from pngconf.h to png.h
1394
Added definition of PNG_LIBPNG_BASE_TYPE in png.h, inadvertently
1396
Revised scripts/pngw32.rc
1397
Despammed mailing addresses by masking "@" with "at".
1398
Inadvertently installed a supposedly faster test version of pngrutil.c
1399
version 1.2.8rc2 [November 26, 2004]
1400
Added two missing "\" in png.h
1401
Change tests in pngread.c and pngpread.c to
1402
if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA))
1403
png_do_read_transformations(png_ptr);
1404
version 1.2.8rc3 [November 28, 2004]
1405
Reverted pngrutil.c to version libpng-1.2.8beta5.
1406
Added scripts/makefile.elf with supporting code in pngconf.h for symbol
1407
versioning (John Bowler).
1408
version 1.2.8rc4 [November 29, 2004]
1409
Added projects/visualc7 (Simon-pierre).
1410
version 1.2.8rc5 [November 29, 2004]
1411
Fixed new typo in scripts/pngw32.rc
1413
version 1.2.8 [December 3, 2004]
1414
Removed projects/visualc7, added projects/visualc71.
1416
version 1.2.9beta1 [February 21, 2006]
1418
Initialized some structure members in pngwutil.c to avoid gcc-4.0.0 complaints
1419
Revised man page and libpng.txt to make it clear that one should not call
1420
png_read_end or png_write_end after png_read_png or png_write_png.
1421
Updated references to png-mng-implement mailing list.
1422
Fixed an incorrect typecast in pngrutil.c
1423
Added PNG_NO_READ_SUPPORTED conditional for making a write-only library.
1424
Added PNG_NO_WRITE_INTERLACING_SUPPORTED conditional.
1425
Optimized alpha-inversion loops in pngwtran.c
1426
Moved test for nonzero gamma outside of png_build_gamma_table() in pngrtran.c
1427
Make sure num_trans is <= 256 before copying data in png_set_tRNS().
1428
Make sure num_palette is <= 256 before copying data in png_set_PLTE().
1429
Interchanged order of write_swap_alpha and write_invert_alpha transforms.
1430
Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin).
1431
Optimized zlib window flag (CINFO) in contrib/pngsuite/*.png (Cosmin).
1432
Updated scripts/makefile.bc32 for Borland C++ 5.6 (Cosmin).
1433
Exported png_get_uint_32, png_save_uint_32, png_get_uint_16, png_save_uint_16,
1434
png_get_int_32, png_save_int_32, png_get_uint_31 (Cosmin).
1435
Added type cast (png_byte) in png_write_sCAL() (Cosmin).
1436
Fixed scripts/makefile.cygwin (Christian Biesinger, Cosmin).
1437
Default iTXt support was inadvertently enabled.
1439
version 1.2.9beta2 [February 21, 2006]
1441
Check for png_rgb_to_gray and png_gray_to_rgb read transformations before
1442
checking for png_read_dither in pngrtran.c
1443
Revised checking of chromaticity limits to accommodate extended RGB
1444
colorspace (John Denker).
1445
Changed line endings in some of the project files to CRLF, even in the
1446
"Unix" tar distributions (Cosmin).
1447
Made png_get_int_32 and png_save_int_32 always available (Cosmin).
1448
Updated scripts/pngos2.def, scripts/pngw32.def and projects/wince/png32ce.def
1449
with the newly exported functions.
1450
Eliminated distributions without the "configure" script.
1451
Updated INSTALL instructions.
1453
version 1.2.9beta3 [February 24, 2006]
1455
Fixed CRCRLF line endings in contrib/visupng/VisualPng.dsp
1456
Made libpng.pc respect EXEC_PREFIX (D. P. Kreil, J. Bowler)
1457
Removed reference to pngasmrd.h from Makefile.am
1458
Renamed CHANGES to ChangeLog.
1459
Renamed LICENSE to COPYING.
1460
Renamed ANNOUNCE to NEWS.
1461
Created AUTHORS file.
1463
version 1.2.9beta4 [March 3, 2006]
1465
Changed definition of PKGCONFIG from $prefix/lib to $libdir in configure.ac
1466
Reverted to filenames LICENSE and ANNOUNCE; removed AUTHORS and COPYING.
1467
Removed newline from the end of some error and warning messages.
1468
Removed test for sqrt() from configure.ac and configure.
1469
Made swap tables in pngtrans.c PNG_CONST (Carlo Bramix).
1470
Disabled default iTXt support that was inadvertently enabled in
1472
Added "OS2" to list of systems that don't need underscores, in pnggccrd.c
1473
Removed libpng version and date from *.c files.
1475
version 1.2.9beta5 [March 4, 2006]
1476
Removed trailing blanks from source files.
1477
Put version and date of latest change in each source file, and changed
1478
copyright year accordingly.
1479
More cleanup of configure.ac, Makefile.ac, and associated scripts.
1480
Restored scripts/makefile.elf which was inadvertently deleted.
1482
version 1.2.9beta6 [March 6, 2006]
1483
Fixed typo (16) in configuration files.
1485
version 1.2.9beta7 [March 7, 2006]
1486
Removed libpng.vers and libpng.sym from libpng12_la_SOURCES in Makefile.am
1487
Fixed inconsistent #ifdef's around png_sig_bytes() and png_set_sCAL_s()
1489
Updated makefile.elf as suggested by debian.
1490
Made cosmetic changes to some makefiles, adding LN_SF and other macros.
1491
Made some makefiles accept "exec_prefix".
1493
version 1.2.9beta8 [March 9, 2006]
1494
Fixed some "#if defined (..." which should be "#if defined(..."
1495
Bug introduced in libpng-1.2.8.
1496
Fixed inconsistency in definition of png_default_read_data()
1497
Restored blank that was lost from makefile.sggcc "clean" target in beta7.
1498
Revised calculation of "current" and "major" for irix in ltmain.sh
1499
Changed "mkdir" to "MKDIR_P" in some makefiles.
1500
Separated PNG_EXPAND and PNG_EXPAND_tRNS.
1501
Added png_set_expand_gray_1_2_4_to_8() and deprecated
1502
png_set_gray_1_2_4_to_8() which also expands tRNS to alpha.
1504
version 1.2.9beta9 [March 10, 2006]
1505
Include "config.h" in pngconf.h when available.
1506
Added some checks for NULL png_ptr or NULL info_ptr (timeless)
1508
version 1.2.9beta10 [March 20, 2006]
1509
Removed extra CR from contrib/visualpng/VisualPng.dsw (Cosmin)
1510
Made pnggccrd.c PIC-compliant (Christian Aichinger).
1511
Added makefile.mingw (Wolfgang Glas).
1512
Revised pngconf.h MMX checking.
1514
version 1.2.9beta11 [March 22, 2006]
1515
Fixed out-of-order declaration in pngwrite.c that was introduced in beta9
1516
Simplified some makefiles by using LIBSO, LIBSOMAJ, and LIBSOVER macros.
1518
version 1.2.9rc1 [March 31, 2006]
1519
Defined PNG_USER_PRIVATEBUILD when including "pngusr.h" (Cosmin).
1520
Removed nonsensical assertion check from pngtest.c (Cosmin).
1522
version 1.2.9 [April 14, 2006]
1523
Revised makefile.beos and added "none" selector in ltmain.sh
1525
version 1.2.10beta1 [April 15, 2006]
1526
Renamed "config.h" to "png_conf.h" and revised Makefile.am to add
1527
-DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h
1528
to include png_conf.h only when PNG_BUILDING_LIBPNG is defined.
1530
version 1.2.10beta2 [April 15, 2006]
1531
Manually updated Makefile.in and configure. Changed png_conf.h.in
1534
version 1.2.10beta3 [April 15, 2006]
1535
Change png_conf.h back to config.h in pngconf.h.
1537
version 1.2.10beta4 [April 16, 2006]
1538
Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*.
1540
version 1.2.10beta5 [April 16, 2006]
1541
Added a configure check for compiling assembler code in pnggccrd.c
1543
version 1.2.10beta6 [April 17, 2006]
1544
Revised the configure check for pnggccrd.c
1545
Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@
1546
Added @LIBPNG_DEFINES@ to arguments when building libpng.sym
1548
version 1.2.10beta7 [April 18, 2006]
1549
Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles.
1551
version 1.2.10rc1 [April 19, 2006]
1552
Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD
1553
Fixed "LN_FS" typo in makefile.sco and makefile.solaris.
1555
version 1.2.10rc2 [April 20, 2006]
1556
Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE
1557
in configure.ac and configure
1558
Made the configure warning about versioned symbols less arrogant.
1560
version 1.2.10rc3 [April 21, 2006]
1561
Added a note in libpng.txt that png_set_sig_bytes(8) can be used when
1562
writing an embedded PNG without the 8-byte signature.
1563
Revised makefiles and configure to avoid making links to libpng.so.*
1565
version 1.2.10 [April 23, 2006]
1566
Reverted configure to "rc2" state.
1568
version 1.2.11beta1 [May 31, 2006]
1569
scripts/libpng.pc.in contained "configure" style version info and would
1570
not work with makefiles.
1571
The shared-library makefiles were linking to libpng.so.0 instead of
1572
libpng.so.3 compatibility as the library.
1574
version 1.2.11beta2 [June 2, 2006]
1575
Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
1577
Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb)
1579
version 1.2.11beta3 [June 5, 2006]
1580
Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin).
1581
Removed the accidental leftover Makefile.in~ (Cosmin).
1582
Avoided potential buffer overflow and optimized buffer in
1583
png_write_sCAL(), png_write_sCAL_s() (Cosmin).
1584
Removed the include directories and libraries from CFLAGS and LDFLAGS
1585
in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin).
1587
version 1.2.11beta4 [June 6, 2006]
1588
Allow zero-length IDAT chunks after the entire zlib datastream, but not
1589
after another intervening chunk type.
1591
version 1.0.19rc1, 1.2.11rc1 [June 13, 2006]
1592
Deleted extraneous square brackets from [config.h] in configure.ac
1594
version 1.0.19rc2, 1.2.11rc2 [June 14, 2006]
1595
Added prototypes for PNG_INCH_CONVERSIONS functions to png.h
1596
Revised INSTALL and autogen.sh
1597
Fixed typo in several makefiles (-W1 should be -Wl)
1598
Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
1600
version 1.0.19rc3, 1.2.11rc3 [June 15, 2006]
1601
Removed the new typedefs for 64-bit systems (delay until version 1.4.0)
1602
Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid
1603
reading out of bounds.
1605
version 1.0.19rc4, 1.2.11rc4 [June 15, 2006]
1606
Really removed the new typedefs for 64-bit systems.
1608
version 1.0.19rc5, 1.2.11rc5 [June 22, 2006]
1609
Removed png_sig_bytes entry from scripts/pngw32.def
1611
version 1.0.19, 1.2.11 [June 26, 2006]
1614
version 1.0.20, 1.2.12 [June 27, 2006]
1615
Really increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
1618
version 1.2.13beta1 [October 2, 2006]
1619
Removed AC_FUNC_MALLOC from configure.ac
1620
Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
1621
Change "logical" to "bitwise" throughout documentation.
1622
Detect and fix attempt to write wrong iCCP profile length.
1624
version 1.0.21, 1.2.13 [November 14, 2006]
1625
Fix potential buffer overflow in sPLT chunk handler.
1626
Fix Makefile.am to not try to link to noexistent files.
1627
Check all exported functions for NULL png_ptr.
1629
version 1.2.14beta1 [November 17, 2006]
1630
Relocated three misplaced tests for NULL png_ptr.
1631
Built Makefile.in with automake-1.9.6 instead of 1.9.2.
1632
Build configure with autoconf-2.60 instead of 2.59
1634
version 1.2.14beta2 [November 17, 2006]
1635
Added some typecasts in png_zalloc().
1637
version 1.2.14rc1 [November 20, 2006]
1638
Changed "strtod" to "png_strtod" in pngrutil.c
1640
version 1.0.22, 1.2.14 [November 27, 2006]
1641
Added missing "$(srcdir)" in Makefile.am and Makefile.in
1643
version 1.2.15beta1 [December 3, 2006]
1644
Generated configure with autoconf-2.61 instead of 2.60
1645
Revised configure.ac to update libpng.pc and libpng-config.
1647
version 1.2.15beta2 [December 3, 2006]
1648
Always export MMX asm functions, just stubs if not building pnggccrd.c
1650
version 1.2.15beta3 [December 4, 2006]
1651
Add "png_bytep" typecast to profile while calculating length in pngwutil.c
1653
version 1.2.15beta4 [December 7, 2006]
1654
Added scripts/CMakeLists.txt
1655
Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta
1657
version 1.2.15beta5 [December 7, 2006]
1658
Changed some instances of PNG_ASSEMBLER_* to PNG_MMX_* in pnggccrd.c
1659
Revised scripts/CMakeLists.txt
1661
version 1.2.15beta6 [December 13, 2006]
1662
Revised scripts/CMakeLists.txt and configure.ac
1664
version 1.2.15rc1 [December 18, 2006]
1665
Revised scripts/CMakeLists.txt
1667
version 1.2.15rc2 [December 21, 2006]
1668
Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers.
1669
Added scripts/makefile.nommx
1671
version 1.2.15rc3 [December 25, 2006]
1672
Fixed shared library numbering error that was intruduced in 1.2.15beta6.
1674
version 1.2.15rc4 [December 27, 2006]
1675
Fixed handling of rgb_to_gray when png_ptr->color.gray isn't set.
1677
version 1.2.15rc5 [December 31, 2006]
1678
Revised handling of rgb_to_gray.
1680
version 1.2.15 [January 5, 2007]
1681
Added some (unsigned long) typecasts in pngtest.c to avoid printing errors.
1683
version 1.2.16beta1 [January 6, 2007]
1684
Fix bugs in makefile.nommx
1686
version 1.2.16beta2 [January 16, 2007]
1687
Revised scripts/CMakeLists.txt
1689
version 1.2.16 [January 31, 2007]
1692
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
1693
(subscription required; visit
1694
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
1696
or to glennrp at users.sourceforge.net
added
removed
FreeImage/Source/LibPNG/CHANGES
