Commit | Line | Data |
---|---|---|
c801d85f KB |
1 | CHANGES - changes for libpng |
2 | ||
3 | version 0.2 | |
a626cc03 RR |
4 | added reader into png.h |
5 | fixed small problems in stub file | |
c801d85f | 6 | version 0.3 |
a626cc03 RR |
7 | added pull reader |
8 | split up pngwrite.c to several files | |
9 | added pnglib.txt | |
10 | added example.c | |
11 | cleaned up writer, adding a few new tranformations | |
12 | fixed some bugs in writer | |
13 | interfaced with zlib 0.5 | |
14 | added K&R support | |
15 | added check for 64 KB blocks for 16 bit machines | |
c801d85f | 16 | version 0.4 |
a626cc03 RR |
17 | cleaned up code and commented code |
18 | simplified time handling into png_time | |
19 | created png_color_16 and png_color_8 to handle color needs | |
20 | cleaned up color type defines | |
21 | fixed various bugs | |
22 | made various names more consistant | |
23 | interfaced with zlib 0.71 | |
24 | cleaned up zTXt reader and writer (using zlib's Reset functions) | |
25 | split transformations into pngrtran.c and pngwtran.c | |
c801d85f | 26 | version 0.5 |
a626cc03 RR |
27 | interfaced with zlib 0.8 |
28 | fixed many reading and writing bugs | |
29 | saved using 3 spaces instead of tabs | |
c801d85f | 30 | version 0.6 |
a626cc03 RR |
31 | added png_large_malloc() and png_large_free() |
32 | added png_size_t | |
33 | cleaned up some compiler warnings | |
34 | added png_start_read_image() | |
c801d85f | 35 | version 0.7 |
a626cc03 RR |
36 | cleaned up lots of bugs |
37 | finished dithering and other stuff | |
38 | added test program | |
39 | changed name from pnglib to libpng | |
c801d85f | 40 | version 0.71 [June, 1995] |
a626cc03 RR |
41 | changed pngtest.png for zlib 0.93 |
42 | fixed error in libpng.txt and example.c | |
c801d85f | 43 | version 0.8 |
a626cc03 RR |
44 | cleaned up some bugs |
45 | added png_set_filler() | |
46 | split up pngstub.c into pngmem.c, pngio.c, and pngerror.c | |
47 | added #define's to remove unwanted code | |
48 | moved png_info_init() to png.c | |
49 | added old_size into png_realloc() | |
50 | added functions to manually set filtering and compression info | |
51 | changed compression parameters based on image type | |
52 | optimized filter selection code | |
53 | added version info | |
54 | changed external functions passing floats to doubles (k&r problems?) | |
55 | put all the configurable stuff in pngconf.h | |
56 | enabled png_set_shift to work with paletted images on read | |
57 | added png_read_update_info() - updates info structure with | |
58 | transformations | |
c801d85f | 59 | version 0.81 [August, 1995] |
a626cc03 | 60 | incorporated Tim Wegner's medium model code (thanks, Tim) |
c801d85f | 61 | version 0.82 [September, 1995] |
a626cc03 | 62 | [unspecified changes] |
c801d85f | 63 | version 0.85 [December, 1995] |
a626cc03 RR |
64 | added more medium model code (almost everything's a far) |
65 | added i/o, error, and memory callback functions | |
66 | fixed some bugs (16 bit, 4 bit interlaced, etc.) | |
67 | added first run progressive reader (barely tested) | |
c801d85f | 68 | version 0.86 [January, 1996] |
a626cc03 RR |
69 | fixed bugs |
70 | improved documentation | |
c801d85f | 71 | version 0.87 [January, 1996] |
a626cc03 RR |
72 | fixed medium model bugs |
73 | fixed other bugs introduced in 0.85 and 0.86 | |
74 | added some minor documentation | |
c801d85f | 75 | version 0.88 [January, 1996] |
a626cc03 RR |
76 | fixed progressive bugs |
77 | replaced tabs with spaces | |
78 | cleaned up documentation | |
79 | added callbacks for read/write and warning/error functions | |
c801d85f | 80 | version 0.89 [July, 1996] |
a626cc03 RR |
81 | added new initialization API to make libpng work better with shared libs |
82 | we now have png_create_read_struct(), png_create_write_struct(), | |
83 | png_create_info_struct(), png_destroy_read_struct(), and | |
84 | png_destroy_write_struct() instead of the separate calls to | |
85 | malloc and png_read_init(), png_info_init(), and png_write_init() | |
86 | changed warning/error callback functions to fix bug - this means you | |
87 | should use the new initialization API if you were using the old | |
88 | png_set_message_fn() calls, and that the old API no longer exists | |
89 | so that people are aware that they need to change their code | |
90 | changed filter selection API to allow selection of multiple filters | |
91 | since it didn't work in previous versions of libpng anyways | |
92 | optimized filter selection code | |
93 | fixed png_set_background() to allow using an arbitrary RGB color for | |
94 | paletted images | |
95 | fixed gamma and background correction for paletted images, so | |
96 | png_correct_palette is not needed unless you are correcting an | |
97 | external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED | |
98 | in pngconf.h) - if nobody uses this, it may disappear in the future. | |
99 | fixed bug with Borland 64K memory allocation (Alexander Lehmann) | |
100 | fixed bug in interlace handling (Smarasderagd, I think) | |
101 | added more error checking for writing and image to reduce invalid files | |
102 | separated read and write functions so that they won't both be linked | |
103 | into a binary when only reading or writing functionality is used | |
104 | new pngtest image also has interlacing and zTXt | |
105 | updated documentation to reflect new API | |
c801d85f | 106 | version 0.90 [January, 1997] |
a626cc03 RR |
107 | made CRC errors/warnings on critical and ancillary chunks configurable |
108 | libpng will use the zlib CRC routines by (compile-time) default | |
109 | changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner) | |
110 | added external C++ wrapper statements to png.h (Gilles Dauphin) | |
111 | allow PNG file to be read when some or all of file signature has already | |
112 | been read from the beginning of the stream. ****This affects the size | |
113 | of info_struct and invalidates all programs that use a shared libpng**** | |
114 | fixed png_filler() declarations | |
115 | fixed? background color conversions | |
116 | fixed order of error function pointers to match documentation | |
117 | current chunk name is now available in png_struct to reduce the number | |
118 | of nearly identical error messages (will simplify multi-lingual | |
119 | support when available) | |
120 | try to get ready for unknown-chunk callback functions: | |
121 | - previously read critical chunks are flagged, so the chunk handling | |
122 | routines can determine if the chunk is in the right place | |
123 | - all chunk handling routines have the same prototypes, so we will | |
124 | be able to handle all chunks via a callback mechanism | |
125 | try to fix Linux "setjmp" buffer size problems | |
c801d85f | 126 | version 0.95 [March, 1997] |
a626cc03 RR |
127 | fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never |
128 | fixed bug in PNG file signature compares when start != 0 | |
129 | changed parameter type of png_set_filler(...filler...) from png_byte | |
130 | to png_uint_32 | |
131 | added test for MACOS to ensure that both math.h and fp.h are not #included | |
132 | added macros for libpng to be compiled as a Windows DLL (Andreas Kupries) | |
133 | added "packswap" transformation, which changes the endianness of | |
134 | packed-pixel bytes (Kevin Bracey) | |
135 | added "strip_alpha" transformation, which removes the alpha channel of | |
136 | input images without using it (not neccesarily a good idea) | |
137 | added "swap_alpha" transformation, which puts the alpha channel in front | |
138 | of the color bytes instead of after | |
139 | removed all implicit variable tests which assume NULL == 0 (I think) | |
140 | changed several variables to "png_size_t" to show 16/32-bit limitations | |
141 | added new pCAL chunk read/write support | |
142 | added experimental filter selection weighting (Greg Roelofs) | |
143 | removed old png_set_rgbx() and png_set_xrgb() functions that have been | |
144 | obsolete for about 2 years now (use png_set_filler() instead) | |
145 | added macros to read 16- and 32-bit ints directly from buffer, to be | |
146 | used only on those systems that support it (namely PowerPC and 680x0) | |
147 | With some testing, this may become the default for MACOS/PPC systems. | |
148 | only calculate CRC on data if we are going to use it | |
149 | added macros for zTXt compression type PNG_zTXt_COMPRESSION_??? | |
150 | added macros for simple libpng debugging output selectable at compile time | |
151 | removed PNG_READ_END_MODE in progressive reader (Smarasderagd) | |
152 | more description of info_struct in libpng.txt and png.h | |
153 | more instructions in example.c | |
154 | more chunk types tested in pngtest.c | |
155 | renamed pngrcb.c to pngset.c, and all png_read_<chunk> functions to be | |
156 | png_set_<chunk>. We now have corresponding png_get_<chunk> | |
157 | functions in pngget.c to get infomation in info_ptr. This isolates | |
158 | the application from the internal organization of png_info_struct | |
159 | (good for shared library implementations). | |
c801d85f | 160 | version 0.96 [May, 1997] |
a626cc03 RR |
161 | fixed serious bug with < 8bpp images introduced in 0.95 |
162 | fixed 256-color transparency bug (Greg Roelofs) | |
163 | fixed up documentation (Greg Roelofs, Laszlo Nyul) | |
164 | fixed "error" in pngconf.h for Linux setjmp() behaviour | |
165 | fixed DOS medium model support (Tim Wegner) | |
166 | fixed png_check_keyword() for case with error in static string text | |
167 | added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul) | |
168 | added typecasts to quiet compiler errors | |
169 | added more debugging info | |
c801d85f | 170 | version 0.97 [January, 1998] |
a626cc03 RR |
171 | removed PNG_USE_OWN_CRC capability |
172 | relocated png_set_crc_action from pngrutil.c to pngrtran.c | |
173 | fixed typecasts of "new_key", etc. (Andreas Dilger) | |
174 | added RFC 1152 [sic] date support | |
175 | fixed bug in gamma handling of 4-bit grayscale | |
176 | added 2-bit grayscale gamma handling (Glenn R-P) | |
177 | added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P) | |
178 | minor corrections in libpng.txt | |
179 | added simple sRGB support (Glenn R-P) | |
180 | easier conditional compiling, e.g. define PNG_READ/WRITE_NOT_FULLY_SUPPORTED; | |
181 | all configurable options can be selected from command-line instead | |
182 | of having to edit pngconf.h (Glenn R-P) | |
183 | fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P) | |
184 | added more conditions for png_do_background, to avoid changing | |
185 | black pixels to background when a background is supplied and | |
186 | no pixels are transparent | |
187 | repaired PNG_NO_STDIO behaviour | |
188 | tested NODIV support and made it default behaviour (Greg Roelofs) | |
189 | added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler) | |
190 | regularized version numbering scheme and bumped shared-library major | |
191 | version number to 2 to avoid problems with libpng 0.89 apps (Greg Roelofs) | |
c801d85f | 192 | version 0.98 [January, 1998] |
a626cc03 RR |
193 | cleaned up some typos in libpng.txt and in code documentation |
194 | fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler) | |
195 | cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c | |
196 | changed recommendation about file_gamma for PC images to .51 from .45, | |
197 | in example.c and libpng.txt, added comments to distinguish between | |
198 | screen_gamma, viewing_gamma, and display_gamma. | |
199 | changed all references to RFC1152 to read RFC1123 and changed the | |
200 | PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED | |
201 | added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent) | |
202 | changed srgb_intent from png_byte to int to avoid compiler bugs | |
c801d85f | 203 | version 0.99 [January 30, 1998] |
a626cc03 RR |
204 | free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler) |
205 | fixed a longstanding "packswap" bug in pngtrans.c | |
206 | fixed some inconsistencies in pngconf.h that prevented compiling with | |
207 | PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined | |
208 | fixed some typos and made other minor rearrangement of libpng.txt (Andreas) | |
209 | changed recommendation about file_gamma for PC images to .50 from .51 in | |
210 | example.c and libpng.txt, and changed file_gamma for sRGB images to .45 | |
211 | added a number of functions to access information from the png structure | |
212 | png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit) | |
213 | added TARGET_MACOS similar to zlib-1.0.8 | |
214 | define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined | |
215 | added type casting to all png_malloc() function calls | |
c801d85f | 216 | version 0.99a [January 31, 1998] |
a626cc03 | 217 | Added type casts and parentheses to all returns that return a value.(Tim W.) |
c801d85f | 218 | version 0.99b [February 4, 1998] |
a626cc03 RR |
219 | Added type cast png_uint_32 on malloc function calls where needed. |
220 | Changed type of num_hist from png_uint_32 to int (same as num_palette). | |
221 | Added checks for rowbytes overflow, in case png_size_t is less than 32 bits. | |
222 | Renamed makefile.elf to makefile.lnx. | |
c801d85f | 223 | version 0.99c [February 7, 1998] |
a626cc03 RR |
224 | More type casting. Removed erroneous overflow test in pngmem.c. |
225 | Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes. | |
226 | Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5. | |
c801d85f | 227 | version 0.99d [February 11, 1998] |
a626cc03 RR |
228 | Renamed "far_to_near()" "png_far_to_near()" |
229 | Revised libpng.3 | |
230 | Version 99c "buffered" operations didn't work as intended. Replaced them | |
231 | with png_memcpy_check() and png_memset_check(). | |
232 | Added many "if (png_ptr == NULL) return" to quell compiler warnings about | |
233 | unused png_ptr, mostly in pngget.c and pngset.c. | |
234 | Check for overlength tRNS chunk present when indexed-color PLTE is read. | |
235 | Cleaned up spelling errors in libpng.3/libpng.txt | |
236 | Corrected a problem with png_get_tRNS() which returned undefined trans array | |
c801d85f | 237 | version 0.99e [February 28, 1998] |
a626cc03 RR |
238 | Corrected png_get_tRNS() again. |
239 | Add parentheses for easier reading of pngget.c, fixed "||" should be "&&". | |
240 | Touched up example.c to make more of it compileable, although the entire | |
241 | file still can't be compiled (Willem van Schaik) | |
242 | Fixed a bug in png_do_shift() (Bryan Tsai) | |
243 | Added a space in png.h prototype for png_write_chunk_start() | |
244 | Replaced pngtest.png with one created with zlib 1.1.1 | |
245 | Changed pngtest to report PASS even when file size is different (Jean-loup G.) | |
246 | Corrected some logic errors in png_do_invert_alpha() (Chris Patterson) | |
c801d85f | 247 | version 0.99f [March 5, 1998] |
a626cc03 RR |
248 | Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey) |
249 | Moved makefiles into a "scripts" directory, and added INSTALL instruction file | |
250 | Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok) | |
251 | Added pointers to "note on libpng versions" in makefile.lnx and README | |
252 | Added row callback feature when reading and writing nonprogressive rows | |
253 | and added a test of this feature in pngtest.c | |
254 | Added user transform callbacks, with test of the feature in pngtest.c | |
c801d85f | 255 | version 0.99g [March 6, 1998, morning] |
a626cc03 RR |
256 | Minor changes to pngtest.c to suppress compiler warnings. |
257 | Removed "beta" language from documentation. | |
c801d85f | 258 | version 0.99h [March 6, 1998, evening] |
a626cc03 RR |
259 | Minor changes to previous minor changes to pngtest.c |
260 | Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED | |
261 | and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro | |
c801d85f | 262 | version 1.00 [March 7, 1998] |
a626cc03 RR |
263 | Changed several typedefs in pngrutil.c |
264 | Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik) | |
265 | replaced "while(1)" with "for(;;)" | |
266 | added PNGARG() to prototypes in pngtest.c and removed some prototypes | |
267 | updated some of the makefiles (Tom Lane) | |
268 | changed some typedefs (s_start, etc.) in pngrutil.c | |
269 | fixed dimensions of "short_months" array in pngwrite.c | |
270 | Replaced ansi2knr.c with the one from jpeg-v6 | |
c801d85f | 271 | version 1.0.0 [March 8, 1998] |
a626cc03 RR |
272 | Changed name from 1.00 to 1.0.0 (Adam Costello) |
273 | Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert) | |
c801d85f | 274 | version 1.0.0a [March 9, 1998] |
a626cc03 RR |
275 | Fixed three bugs in pngrtran.c to make gamma+background handling consistent |
276 | (Greg Roelofs) | |
277 | Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz | |
278 | for major, minor, and bugfix releases. This is 10001. (Adam Costello, | |
279 | Tom Lane) | |
280 | Make months range from 1-12 in png_convert_to_rfc1123 | |
c801d85f | 281 | version 1.0.0b [March 13, 1998] |
a626cc03 RR |
282 | Quieted compiler complaints about two empty "for" loops in pngrutil.c |
283 | Minor changes to makefile.s2x | |
284 | Removed #ifdef/#endif around a png_free() in pngread.c | |
c801d85f | 285 | version 1.0.1 [March 14, 1998] |
a626cc03 RR |
286 | Changed makefile.s2x to reduce security risk of using a relative pathname |
287 | Fixed some typos in the documentation (Greg). | |
288 | Fixed a problem with value of "channels" returned by png_read_update_info() | |
289 | version 1.0.1a [April 21, 1998] | |
290 | Optimized Paeth calculations by replacing abs() function calls with intrinsics | |
291 | plus other loop optimizations. Improves avg decoding speed by about 20%. | |
292 | Commented out i386istic "align" compiler flags in makefile.lnx. | |
293 | Reduced the default warning level in some makefiles, to make them consistent. | |
294 | Removed references to IJG and JPEG in the ansi2knr.c copyright statement. | |
295 | Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation. | |
296 | Added grayscale and 16-bit capability to png_do_read_filler(). | |
297 | Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes | |
298 | too large when writing an image with bit_depth < 8 (Bob Dellaca). | |
299 | Corrected some bugs in the experimental weighted filtering heuristics. | |
300 | Moved a misplaced pngrutil code block that truncates tRNS if it has more | |
301 | than num_palette entries -- test was done before num_palette was defined. | |
302 | Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins). | |
303 | Changed compiler flags in makefile.wat for better optimization (Pawel Mrochen). | |
304 | version 1.0.1b [May 2, 1998] | |
305 | Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg). | |
306 | Relocated the png_composite macros from pngrtran.c to png.h (Greg). | |
307 | Added makefile.sco (contributed by Mike Hopkirk). | |
308 | Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a. | |
309 | Fixed a bug in pngrtran.c that would set channels=5 under some circumstances. | |
310 | More work on the Paeth-filtering, achieving imperceptible speedup (A Kleinert). | |
311 | More work on loop optimization which may help when compiled with C++ compilers. | |
312 | Added warnings when people try to use transforms they've defined out. | |
313 | Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran. | |
314 | Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg) | |
315 | version 1.0.1c [May 11, 1998] | |
316 | Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for | |
317 | filler bytes should have been 0xff instead of 0xf. | |
318 | Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images. | |
319 | Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED | |
320 | out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h | |
321 | Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED, | |
322 | for consistency, in pngconf.h | |
323 | Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier | |
324 | to remove unwanted capabilities via the compile line | |
325 | Made some corrections to grammar (which, it's) in documentation (Greg). | |
326 | Corrected example.c, use of row_pointers in png_write_image(). | |
327 | version 1.0.1d [May 24, 1998] | |
328 | Corrected several statements that used side effects illegally in pngrutil.c | |
329 | and pngtrans.c, that were introduced in version 1.0.1b | |
330 | Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert) | |
331 | More corrections to example.c, use of row_pointers in png_write_image() | |
332 | and png_read_rows(). | |
333 | Added pngdll.mak and pngdef.pas to scripts directory, contributed by | |
334 | Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5 | |
335 | Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.) | |
336 | Changed several loops from count-down to count-up, for consistency. | |
337 | version 1.0.1e [June 6, 1998] | |
338 | Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and | |
339 | added warnings when people try to set png_read_fn and png_write_fn in | |
340 | the same structure. | |
341 | Added a test such that png_do_gamma will be done when num_trans==0 | |
342 | for truecolor images that have defined a background. This corrects an | |
343 | error that was introduced in libpng-0.90 that can cause gamma processing | |
344 | to be skipped. | |
345 | Added tests in png.h to include "trans" and "trans_values" in structures | |
346 | when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined. | |
347 | Add png_free(png_ptr->time_buffer) in png_destroy_read_struct() | |
348 | Moved png_convert_to_rfc_1123() from pngwrite.c to png.c | |
349 | Added capability for user-provided malloc_fn() and free_fn() functions, | |
350 | and revised pngtest.c to demonstrate their use, replacing the | |
351 | PNGTEST_DEBUG_MEM feature. | |
352 | Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner). | |
353 | version 1.0.2 [June 14, 1998] | |
354 | Fixed two bugs in makefile.bor . | |
355 | version 1.0.2a [December 30, 1998] | |
356 | Replaced and extended code that was removed from png_set_filler() in 1.0.1a. | |
357 | Fixed a bug in png_do_filler() that made it fail to write filler bytes in | |
358 | the left-most pixel of each row (Kevin Bracey). | |
359 | Changed "static pngcharp tIME_string" to "static char tIME_string[30]" | |
360 | in pngtest.c (Duncan Simpson). | |
361 | Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk | |
362 | even when no tIME chunk was present in the source file. | |
363 | Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit. | |
364 | Fixed a problem in png_read_push_finish_row(), which would not skip some | |
365 | passes that it should skip, for images that are less than 3 pixels high. | |
366 | Interchanged the order of calls to png_do_swap() and png_do_shift() | |
367 | in pngwtran.c (John Cromer). | |
368 | Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h . | |
369 | Changed "bad adaptive filter type" from error to warning in pngrutil.c . | |
370 | Fixed a documentation error about default filtering with 8-bit indexed-color. | |
371 | Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO | |
372 | (L. Peter Deutsch). | |
373 | Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions. | |
374 | Added png_get_copyright() and png_get_header_version() functions. | |
375 | Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c | |
376 | Added information about debugging in libpng.txt and libpng.3 . | |
377 | Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and makefile.sco. | |
378 | Removed lines after Dynamic Dependencies" in makefile.aco . | |
379 | Revised makefile.dec to make a shared library (Jeremie Petit). | |
380 | Removed trailing blanks from all files. | |
381 | version 1.0.2a [January 6, 1999] | |
382 | Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h | |
383 | Added "if" tests to silence complaints about unused png_ptr in png.h and png.c | |
384 | Changed "check_if_png" function in example.c to return true (nonzero) if PNG. | |
385 | Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig() | |
386 | which is obsolete. | |
387 | version 1.0.3 [January 14, 1999] | |
388 | Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice) | |
389 | Added a statement of Y2K compliance in png.h, libpng.1, and Y2KINFO. |