| 1 | #if 0 |
| 2 | CHANGES - changes for libpng |
| 3 | |
| 4 | Version 0.2 |
| 5 | added reader into png.h |
| 6 | fixed small problems in stub file |
| 7 | |
| 8 | Version 0.3 |
| 9 | added pull reader |
| 10 | split up pngwrite.c to several files |
| 11 | added pnglib.txt |
| 12 | added example.c |
| 13 | cleaned up writer, adding a few new transformations |
| 14 | fixed some bugs in writer |
| 15 | interfaced with zlib 0.5 |
| 16 | added K&R support |
| 17 | added check for 64 KB blocks for 16-bit machines |
| 18 | |
| 19 | Version 0.4 |
| 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 |
| 24 | fixed various bugs |
| 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 |
| 29 | |
| 30 | Version 0.5 |
| 31 | interfaced with zlib 0.8 |
| 32 | fixed many reading and writing bugs |
| 33 | saved using 3 spaces instead of tabs |
| 34 | |
| 35 | Version 0.6 |
| 36 | added png_large_malloc() and png_large_free() |
| 37 | added png_size_t |
| 38 | cleaned up some compiler warnings |
| 39 | added png_start_read_image() |
| 40 | |
| 41 | Version 0.7 |
| 42 | cleaned up lots of bugs |
| 43 | finished dithering and other stuff |
| 44 | added test program |
| 45 | changed name from pnglib to libpng |
| 46 | |
| 47 | Version 0.71 [June, 1995] |
| 48 | changed pngtest.png for zlib 0.93 |
| 49 | fixed error in libpng.txt and example.c |
| 50 | |
| 51 | Version 0.8 |
| 52 | cleaned up some bugs |
| 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 |
| 61 | added version info |
| 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 transformations |
| 66 | |
| 67 | Version 0.81 [August, 1995] |
| 68 | incorporated Tim Wegner's medium model code (thanks, Tim) |
| 69 | |
| 70 | Version 0.82 [September, 1995] |
| 71 | [unspecified changes] |
| 72 | |
| 73 | Version 0.85 [December, 1995] |
| 74 | added more medium model code (almost everything's a far) |
| 75 | added i/o, error, and memory callback functions |
| 76 | fixed some bugs (16-bit, 4-bit interlaced, etc.) |
| 77 | added first run progressive reader (barely tested) |
| 78 | |
| 79 | Version 0.86 [January, 1996] |
| 80 | fixed bugs |
| 81 | improved documentation |
| 82 | |
| 83 | Version 0.87 [January, 1996] |
| 84 | fixed medium model bugs |
| 85 | fixed other bugs introduced in 0.85 and 0.86 |
| 86 | added some minor documentation |
| 87 | |
| 88 | Version 0.88 [January, 1996] |
| 89 | fixed progressive bugs |
| 90 | replaced tabs with spaces |
| 91 | cleaned up documentation |
| 92 | added callbacks for read/write and warning/error functions |
| 93 | |
| 94 | Version 0.89 [July, 1996] |
| 95 | Added new initialization API to make libpng work better with shared libs |
| 96 | we now have png_create_read_struct(), png_create_write_struct(), |
| 97 | png_create_info_struct(), png_destroy_read_struct(), and |
| 98 | png_destroy_write_struct() instead of the separate calls to |
| 99 | malloc and png_read_init(), png_info_init(), and png_write_init() |
| 100 | Changed warning/error callback functions to fix bug - this means you |
| 101 | should use the new initialization API if you were using the old |
| 102 | png_set_message_fn() calls, and that the old API no longer exists |
| 103 | so that people are aware that they need to change their code |
| 104 | Changed filter selection API to allow selection of multiple filters |
| 105 | since it didn't work in previous versions of libpng anyways |
| 106 | Optimized filter selection code |
| 107 | Fixed png_set_background() to allow using an arbitrary RGB color for |
| 108 | paletted images |
| 109 | Fixed gamma and background correction for paletted images, so |
| 110 | png_correct_palette is not needed unless you are correcting an |
| 111 | external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED |
| 112 | in pngconf.h) - if nobody uses this, it may disappear in the future. |
| 113 | Fixed bug with Borland 64K memory allocation (Alexander Lehmann) |
| 114 | Fixed bug in interlace handling (Smarasderagd, I think) |
| 115 | Added more error checking for writing and image to reduce invalid files |
| 116 | Separated read and write functions so that they won't both be linked |
| 117 | into a binary when only reading or writing functionality is used |
| 118 | New pngtest image also has interlacing and zTXt |
| 119 | Updated documentation to reflect new API |
| 120 | |
| 121 | Version 0.90 [January, 1997] |
| 122 | Made CRC errors/warnings on critical and ancillary chunks configurable |
| 123 | libpng will use the zlib CRC routines by (compile-time) default |
| 124 | Changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner) |
| 125 | Added external C++ wrapper statements to png.h (Gilles Dauphin) |
| 126 | Allow PNG file to be read when some or all of file signature has already |
| 127 | been read from the beginning of the stream. ****This affects the size |
| 128 | of info_struct and invalidates all programs that use a shared libpng**** |
| 129 | Fixed png_filler() declarations |
| 130 | Fixed? background color conversions |
| 131 | Fixed order of error function pointers to match documentation |
| 132 | Current chunk name is now available in png_struct to reduce the number |
| 133 | of nearly identical error messages (will simplify multi-lingual |
| 134 | support when available) |
| 135 | Try to get ready for unknown-chunk callback functions: |
| 136 | - previously read critical chunks are flagged, so the chunk handling |
| 137 | routines can determine if the chunk is in the right place |
| 138 | - all chunk handling routines have the same prototypes, so we will |
| 139 | be able to handle all chunks via a callback mechanism |
| 140 | Try to fix Linux "setjmp" buffer size problems |
| 141 | Removed png_large_malloc, png_large_free, and png_realloc functions. |
| 142 | |
| 143 | Version 0.95 [March, 1997] |
| 144 | Fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never |
| 145 | Fixed bug in PNG file signature compares when start != 0 |
| 146 | Changed parameter type of png_set_filler(...filler...) from png_byte |
| 147 | to png_uint_32 |
| 148 | Added test for MACOS to ensure that both math.h and fp.h are not #included |
| 149 | Added macros for libpng to be compiled as a Windows DLL (Andreas Kupries) |
| 150 | Added "packswap" transformation, which changes the endianness of |
| 151 | packed-pixel bytes (Kevin Bracey) |
| 152 | Added "strip_alpha" transformation, which removes the alpha channel of |
| 153 | input images without using it (not necessarily a good idea) |
| 154 | Added "swap_alpha" transformation, which puts the alpha channel in front |
| 155 | of the color bytes instead of after |
| 156 | Removed all implicit variable tests which assume NULL == 0 (I think) |
| 157 | Changed several variables to "png_size_t" to show 16/32-bit limitations |
| 158 | Added new pCAL chunk read/write support |
| 159 | Added experimental filter selection weighting (Greg Roelofs) |
| 160 | Removed old png_set_rgbx() and png_set_xrgb() functions that have been |
| 161 | obsolete for about 2 years now (use png_set_filler() instead) |
| 162 | Added macros to read 16- and 32-bit ints directly from buffer, to be |
| 163 | used only on those systems that support it (namely PowerPC and 680x0) |
| 164 | With some testing, this may become the default for MACOS/PPC systems. |
| 165 | Only calculate CRC on data if we are going to use it |
| 166 | Added macros for zTXt compression type PNG_zTXt_COMPRESSION_??? |
| 167 | Added macros for simple libpng debugging output selectable at compile time |
| 168 | Removed PNG_READ_END_MODE in progressive reader (Smarasderagd) |
| 169 | More description of info_struct in libpng.txt and png.h |
| 170 | More instructions in example.c |
| 171 | More chunk types tested in pngtest.c |
| 172 | Renamed pngrcb.c to pngset.c, and all png_read_<chunk> functions to be |
| 173 | png_set_<chunk>. We now have corresponding png_get_<chunk> |
| 174 | functions in pngget.c to get information in info_ptr. This isolates |
| 175 | the application from the internal organization of png_info_struct |
| 176 | (good for shared library implementations). |
| 177 | |
| 178 | Version 0.96 [May, 1997] |
| 179 | Fixed serious bug with < 8bpp images introduced in 0.95 |
| 180 | Fixed 256-color transparency bug (Greg Roelofs) |
| 181 | Fixed up documentation (Greg Roelofs, Laszlo Nyul) |
| 182 | Fixed "error" in pngconf.h for Linux setjmp() behavior |
| 183 | Fixed DOS medium model support (Tim Wegner) |
| 184 | Fixed png_check_keyword() for case with error in static string text |
| 185 | Added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul) |
| 186 | Added typecasts to quiet compiler errors |
| 187 | Added more debugging info |
| 188 | |
| 189 | Version 0.97 [January, 1998] |
| 190 | Removed PNG_USE_OWN_CRC capability |
| 191 | Relocated png_set_crc_action from pngrutil.c to pngrtran.c |
| 192 | Fixed typecasts of "new_key", etc. (Andreas Dilger) |
| 193 | Added RFC 1152 [sic] date support |
| 194 | Fixed bug in gamma handling of 4-bit grayscale |
| 195 | Added 2-bit grayscale gamma handling (Glenn R-P) |
| 196 | Added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P) |
| 197 | Minor corrections in libpng.txt |
| 198 | Added simple sRGB support (Glenn R-P) |
| 199 | Easier conditional compiling, e.g., |
| 200 | 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 behavior |
| 208 | Tested NODIV support and made it default behavior (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 |
| 212 | (Greg Roelofs) |
| 213 | |
| 214 | Version 0.98 [January, 1998] |
| 215 | Cleaned up some typos in libpng.txt and in code documentation |
| 216 | Fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler) |
| 217 | Cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c |
| 218 | Changed recommendation about file_gamma for PC images to .51 from .45, |
| 219 | in example.c and libpng.txt, added comments to distinguish between |
| 220 | screen_gamma, viewing_gamma, and display_gamma. |
| 221 | Changed all references to RFC1152 to read RFC1123 and changed the |
| 222 | PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED |
| 223 | Added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent) |
| 224 | Changed srgb_intent from png_byte to int to avoid compiler bugs |
| 225 | |
| 226 | Version 0.99 [January 30, 1998] |
| 227 | Free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler) |
| 228 | Fixed a longstanding "packswap" bug in pngtrans.c |
| 229 | Fixed some inconsistencies in pngconf.h that prevented compiling with |
| 230 | PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined |
| 231 | Fixed some typos and made other minor rearrangement of libpng.txt (Andreas) |
| 232 | Changed recommendation about file_gamma for PC images to .50 from .51 in |
| 233 | example.c and libpng.txt, and changed file_gamma for sRGB images to .45 |
| 234 | Added a number of functions to access information from the png structure |
| 235 | png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit) |
| 236 | Added TARGET_MACOS similar to zlib-1.0.8 |
| 237 | Define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined |
| 238 | Added type casting to all png_malloc() function calls |
| 239 | |
| 240 | Version 0.99a [January 31, 1998] |
| 241 | Added type casts and parentheses to all returns that return a value.(Tim W.) |
| 242 | |
| 243 | Version 0.99b [February 4, 1998] |
| 244 | Added type cast png_uint_32 on malloc function calls where needed. |
| 245 | Changed type of num_hist from png_uint_32 to int (same as num_palette). |
| 246 | Added checks for rowbytes overflow, in case png_size_t is less than 32 bits. |
| 247 | Renamed makefile.elf to makefile.lnx. |
| 248 | |
| 249 | Version 0.99c [February 7, 1998] |
| 250 | More type casting. Removed erroneous overflow test in pngmem.c. |
| 251 | Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes. |
| 252 | Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5. |
| 253 | |
| 254 | Version 0.99d [February 11, 1998] |
| 255 | Renamed "far_to_near()" "png_far_to_near()" |
| 256 | Revised libpng.3 |
| 257 | Version 99c "buffered" operations didn't work as intended. Replaced them |
| 258 | with png_memcpy_check() and png_memset_check(). |
| 259 | Added many "if (png_ptr == NULL) return" to quell compiler warnings about |
| 260 | unused png_ptr, mostly in pngget.c and pngset.c. |
| 261 | Check for overlength tRNS chunk present when indexed-color PLTE is read. |
| 262 | Cleaned up spelling errors in libpng.3/libpng.txt |
| 263 | Corrected a problem with png_get_tRNS() which returned undefined trans array |
| 264 | |
| 265 | Version 0.99e [February 28, 1998] |
| 266 | Corrected png_get_tRNS() again. |
| 267 | Add parentheses for easier reading of pngget.c, fixed "||" should be "&&". |
| 268 | Touched up example.c to make more of it compileable, although the entire |
| 269 | file still can't be compiled (Willem van Schaik) |
| 270 | Fixed a bug in png_do_shift() (Bryan Tsai) |
| 271 | Added a space in png.h prototype for png_write_chunk_start() |
| 272 | Replaced pngtest.png with one created with zlib 1.1.1 |
| 273 | Changed pngtest to report PASS even when file size is different (Jean-loup G.) |
| 274 | Corrected some logic errors in png_do_invert_alpha() (Chris Patterson) |
| 275 | |
| 276 | Version 0.99f [March 5, 1998] |
| 277 | Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey) |
| 278 | Moved makefiles into a "scripts" directory, and added INSTALL instruction file |
| 279 | Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok) |
| 280 | Added pointers to "note on libpng versions" in makefile.lnx and README |
| 281 | Added row callback feature when reading and writing nonprogressive rows |
| 282 | and added a test of this feature in pngtest.c |
| 283 | Added user transform callbacks, with test of the feature in pngtest.c |
| 284 | |
| 285 | Version 0.99g [March 6, 1998, morning] |
| 286 | Minor changes to pngtest.c to suppress compiler warnings. |
| 287 | Removed "beta" language from documentation. |
| 288 | |
| 289 | Version 0.99h [March 6, 1998, evening] |
| 290 | Minor changes to previous minor changes to pngtest.c |
| 291 | Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED |
| 292 | and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro |
| 293 | Added user transform capability |
| 294 | |
| 295 | Version 1.00 [March 7, 1998] |
| 296 | Changed several typedefs in pngrutil.c |
| 297 | Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik) |
| 298 | Replaced "while(1)" with "for(;;)" |
| 299 | Added PNGARG() to prototypes in pngtest.c and removed some prototypes |
| 300 | Updated some of the makefiles (Tom Lane) |
| 301 | Changed some typedefs (s_start, etc.) in pngrutil.c |
| 302 | Fixed dimensions of "short_months" array in pngwrite.c |
| 303 | Replaced ansi2knr.c with the one from jpeg-v6 |
| 304 | |
| 305 | Version 1.0.0 [March 8, 1998] |
| 306 | Changed name from 1.00 to 1.0.0 (Adam Costello) |
| 307 | Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert) |
| 308 | |
| 309 | Version 1.0.0a [March 9, 1998] |
| 310 | Fixed three bugs in pngrtran.c to make gamma+background handling consistent |
| 311 | (Greg Roelofs) |
| 312 | Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz |
| 313 | for major, minor, and bugfix releases. This is 10001. (Adam Costello, |
| 314 | Tom Lane) |
| 315 | Make months range from 1-12 in png_convert_to_rfc1123 |
| 316 | |
| 317 | Version 1.0.0b [March 13, 1998] |
| 318 | Quieted compiler complaints about two empty "for" loops in pngrutil.c |
| 319 | Minor changes to makefile.s2x |
| 320 | Removed #ifdef/#endif around a png_free() in pngread.c |
| 321 | |
| 322 | Version 1.0.1 [March 14, 1998] |
| 323 | Changed makefile.s2x to reduce security risk of using a relative pathname |
| 324 | Fixed some typos in the documentation (Greg). |
| 325 | Fixed a problem with value of "channels" returned by png_read_update_info() |
| 326 | |
| 327 | Version 1.0.1a [April 21, 1998] |
| 328 | Optimized Paeth calculations by replacing abs() function calls with intrinsics |
| 329 | plus other loop optimizations. Improves avg decoding speed by about 20%. |
| 330 | Commented out i386istic "align" compiler flags in makefile.lnx. |
| 331 | Reduced the default warning level in some makefiles, to make them consistent. |
| 332 | Removed references to IJG and JPEG in the ansi2knr.c copyright statement. |
| 333 | Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation. |
| 334 | Added grayscale and 16-bit capability to png_do_read_filler(). |
| 335 | Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes |
| 336 | too large when writing an image with bit_depth < 8 (Bob Dellaca). |
| 337 | Corrected some bugs in the experimental weighted filtering heuristics. |
| 338 | Moved a misplaced pngrutil code block that truncates tRNS if it has more |
| 339 | than num_palette entries -- test was done before num_palette was defined. |
| 340 | Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins). |
| 341 | Changed compiler flags in makefile.wat for better optimization |
| 342 | (Pawel Mrochen). |
| 343 | |
| 344 | Version 1.0.1b [May 2, 1998] |
| 345 | Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg). |
| 346 | Relocated the png_composite macros from pngrtran.c to png.h (Greg). |
| 347 | Added makefile.sco (contributed by Mike Hopkirk). |
| 348 | Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a. |
| 349 | Fixed a bug in pngrtran.c that would set channels=5 under some circumstances. |
| 350 | More work on the Paeth-filtering, achieving imperceptible speedup |
| 351 | (A Kleinert). |
| 352 | More work on loop optimization which may help when compiled with C++ |
| 353 | compilers. |
| 354 | Added warnings when people try to use transforms they've defined out. |
| 355 | Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran. |
| 356 | Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg) |
| 357 | |
| 358 | Version 1.0.1c [May 11, 1998] |
| 359 | Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for |
| 360 | filler bytes should have been 0xff instead of 0xf. |
| 361 | Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images. |
| 362 | Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED |
| 363 | out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h |
| 364 | Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED, |
| 365 | for consistency, in pngconf.h |
| 366 | Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier |
| 367 | to remove unwanted capabilities via the compile line |
| 368 | Made some corrections to grammar (which, it's) in documentation (Greg). |
| 369 | Corrected example.c, use of row_pointers in png_write_image(). |
| 370 | |
| 371 | Version 1.0.1d [May 24, 1998] |
| 372 | Corrected several statements that used side effects illegally in pngrutil.c |
| 373 | and pngtrans.c, that were introduced in version 1.0.1b |
| 374 | Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert) |
| 375 | More corrections to example.c, use of row_pointers in png_write_image() |
| 376 | and png_read_rows(). |
| 377 | Added pngdll.mak and pngdef.pas to scripts directory, contributed by |
| 378 | Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5 |
| 379 | Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.) |
| 380 | Changed several loops from count-down to count-up, for consistency. |
| 381 | |
| 382 | Version 1.0.1e [June 6, 1998] |
| 383 | Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and |
| 384 | added warnings when people try to set png_read_fn and png_write_fn in |
| 385 | the same structure. |
| 386 | Added a test such that png_do_gamma will be done when num_trans==0 |
| 387 | for truecolor images that have defined a background. This corrects an |
| 388 | error that was introduced in libpng-0.90 that can cause gamma processing |
| 389 | to be skipped. |
| 390 | Added tests in png.h to include "trans" and "trans_values" in structures |
| 391 | when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined. |
| 392 | Add png_free(png_ptr->time_buffer) in png_destroy_read_struct() |
| 393 | Moved png_convert_to_rfc_1123() from pngwrite.c to png.c |
| 394 | Added capability for user-provided malloc_fn() and free_fn() functions, |
| 395 | and revised pngtest.c to demonstrate their use, replacing the |
| 396 | PNGTEST_DEBUG_MEM feature. |
| 397 | Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner). |
| 398 | |
| 399 | Version 1.0.2 [June 14, 1998] |
| 400 | Fixed two bugs in makefile.bor . |
| 401 | |
| 402 | Version 1.0.2a [December 30, 1998] |
| 403 | Replaced and extended code that was removed from png_set_filler() in 1.0.1a. |
| 404 | Fixed a bug in png_do_filler() that made it fail to write filler bytes in |
| 405 | the left-most pixel of each row (Kevin Bracey). |
| 406 | Changed "static pngcharp tIME_string" to "static char tIME_string[30]" |
| 407 | in pngtest.c (Duncan Simpson). |
| 408 | Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk |
| 409 | even when no tIME chunk was present in the source file. |
| 410 | Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit. |
| 411 | Fixed a problem in png_read_push_finish_row(), which would not skip some |
| 412 | passes that it should skip, for images that are less than 3 pixels high. |
| 413 | Interchanged the order of calls to png_do_swap() and png_do_shift() |
| 414 | in pngwtran.c (John Cromer). |
| 415 | Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h . |
| 416 | Changed "bad adaptive filter type" from error to warning in pngrutil.c . |
| 417 | Fixed a documentation error about default filtering with 8-bit indexed-color. |
| 418 | Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO |
| 419 | (L. Peter Deutsch). |
| 420 | Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions. |
| 421 | Added png_get_copyright() and png_get_header_version() functions. |
| 422 | Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c |
| 423 | Added information about debugging in libpng.txt and libpng.3 . |
| 424 | Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and |
| 425 | makefile.sco. |
| 426 | Removed lines after Dynamic Dependencies" in makefile.aco . |
| 427 | Revised makefile.dec to make a shared library (Jeremie Petit). |
| 428 | Removed trailing blanks from all files. |
| 429 | |
| 430 | Version 1.0.2a [January 6, 1999] |
| 431 | Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h |
| 432 | Added "if" tests to silence complaints about unused png_ptr in png.h and png.c |
| 433 | Changed "check_if_png" function in example.c to return true (nonzero) if PNG. |
| 434 | Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig() |
| 435 | which is obsolete. |
| 436 | |
| 437 | Version 1.0.3 [January 14, 1999] |
| 438 | Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice) |
| 439 | Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO. |
| 440 | |
| 441 | Version 1.0.3a [August 12, 1999] |
| 442 | Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning |
| 443 | if an attempt is made to read an interlaced image when it's not supported. |
| 444 | Added check if png_ptr->trans is defined before freeing it in pngread.c |
| 445 | Modified the Y2K statement to include versions back to version 0.71 |
| 446 | Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c |
| 447 | Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments) |
| 448 | Replaced leading blanks with tab characters in makefile.hux |
| 449 | Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents. |
| 450 | Changed (float)red and (float)green to (double)red, (double)green |
| 451 | in png_set_rgb_to_gray() to avoid "promotion" problems in AIX. |
| 452 | Fixed a bug in pngconf.h that omitted <stdio.h> when PNG_DEBUG==0 (K Bracey). |
| 453 | Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt). |
| 454 | Updated documentation to refer to the PNG-1.2 specification. |
| 455 | Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c |
| 456 | in makefile.knr, INSTALL, and README (L. Peter Deutsch) |
| 457 | Fixed bugs in calculation of the length of rowbytes when adding alpha |
| 458 | channels to 16-bit images, in pngrtran.c (Chris Nokleberg) |
| 459 | Added function png_set_user_transform_info() to store user_transform_ptr, |
| 460 | user_depth, and user_channels into the png_struct, and a function |
| 461 | png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg) |
| 462 | Added function png_set_empty_plte_permitted() to make libpng useable |
| 463 | in MNG applications. |
| 464 | Corrected the typedef for png_free_ptr in png.h (Jesse Jones). |
| 465 | Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be |
| 466 | consistent with PNG-1.2, and allow variance of 500 before complaining. |
| 467 | Added assembler code contributed by Intel in file pngvcrd.c and modified |
| 468 | makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation, |
| 469 | Gilles Vollant) |
| 470 | Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy. |
| 471 | Added some aliases for png_set_expand() in pngrtran.c, namely |
| 472 | png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS() |
| 473 | (Greg Roelofs, in "PNG: The Definitive Guide"). |
| 474 | Added makefile.beo for BEOS on X86, contributed by Sander Stok. |
| 475 | |
| 476 | Version 1.0.3b [August 26, 1999] |
| 477 | Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h |
| 478 | Changed leading blanks to tabs in all makefiles. |
| 479 | Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code. |
| 480 | Made alternate versions of png_set_expand() in pngrtran.c, namely |
| 481 | png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha |
| 482 | (Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases. |
| 483 | Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h |
| 484 | Revised calculation of num_blocks in pngmem.c to avoid a potentially |
| 485 | negative shift distance, whose results are undefined in the C language. |
| 486 | Added a check in pngset.c to prevent writing multiple tIME chunks. |
| 487 | Added a check in pngwrite.c to detect invalid small window_bits sizes. |
| 488 | |
| 489 | Version 1.0.3d [September 4, 1999] |
| 490 | Fixed type casting of igamma in pngrutil.c |
| 491 | Added new png_expand functions to scripts/pngdef.pas and pngos2.def |
| 492 | Added a demo read_user_transform_fn that examines the row filters in pngtest.c |
| 493 | |
| 494 | Version 1.0.4 [September 24, 1999] |
| 495 | Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined |
| 496 | Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h |
| 497 | Made several minor corrections to pngtest.c |
| 498 | Renamed the makefiles with longer but more user friendly extensions. |
| 499 | Copied the PNG copyright and license to a separate LICENSE file. |
| 500 | Revised documentation, png.h, and example.c to remove reference to |
| 501 | "viewing_gamma" which no longer appears in the PNG specification. |
| 502 | Revised pngvcrd.c to use MMX code for interlacing only on the final pass. |
| 503 | Updated pngvcrd.c to use the faster C filter algorithms from libpng-1.0.1a |
| 504 | Split makefile.win32vc into two versions, makefile.vcawin32 (uses MMX |
| 505 | assembler code) and makefile.vcwin32 (doesn't). |
| 506 | Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING) |
| 507 | Added a copy of pngnow.png to the distribution. |
| 508 | |
| 509 | Version 1.0.4a [September 25, 1999] |
| 510 | Increase max_pixel_depth in pngrutil.c if a user transform needs it. |
| 511 | Changed several division operations to right-shifts in pngvcrd.c |
| 512 | |
| 513 | Version 1.0.4b [September 30, 1999] |
| 514 | Added parentheses in line 3732 of pngvcrd.c |
| 515 | Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1 |
| 516 | |
| 517 | Version 1.0.4c [October 1, 1999] |
| 518 | Added a "png_check_version" function in png.c and pngtest.c that will generate |
| 519 | a helpful compiler error if an old png.h is found in the search path. |
| 520 | Changed type of png_user_transform_depth|channels from int to png_byte. |
| 521 | |
| 522 | Version 1.0.4d [October 6, 1999] |
| 523 | Changed 0.45 to 0.45455 in png_set_sRGB() |
| 524 | Removed unused PLTE entries from pngnow.png |
| 525 | Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly. |
| 526 | |
| 527 | Version 1.0.4e [October 10, 1999] |
| 528 | Fixed sign error in pngvcrd.c (Greg Roelofs) |
| 529 | Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P) |
| 530 | |
| 531 | Version 1.0.4f [October 15, 1999] |
| 532 | Surrounded example.c code with #if 0 .. #endif to prevent people from |
| 533 | inadvertently trying to compile it. |
| 534 | Changed png_get_header_version() from a function to a macro in png.h |
| 535 | Added type casting mostly in pngrtran.c and pngwtran.c |
| 536 | Removed some pointless "ptr = NULL" in pngmem.c |
| 537 | Added a "contrib" directory containing the source code from Greg's book. |
| 538 | |
| 539 | Version 1.0.5 [October 15, 1999] |
| 540 | Minor editing of the INSTALL and README files. |
| 541 | |
| 542 | Version 1.0.5a [October 23, 1999] |
| 543 | Added contrib/pngsuite and contrib/pngminus (Willem van Schaik) |
| 544 | Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans) |
| 545 | Further optimization and bugfix of pngvcrd.c |
| 546 | Revised pngset.c so that it does not allocate or free memory in the user's |
| 547 | text_ptr structure. Instead, it makes its own copy. |
| 548 | Created separate write_end_info_struct in pngtest.c for a more severe test. |
| 549 | Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak. |
| 550 | |
| 551 | Version 1.0.5b [November 23, 1999] |
| 552 | Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and |
| 553 | PNG_FLAG_WROTE_tIME from flags to mode. |
| 554 | Added png_write_info_before_PLTE() function. |
| 555 | Fixed some typecasting in contrib/gregbook/*.c |
| 556 | Updated scripts/makevms.com and added makevms.com to contrib/gregbook |
| 557 | and contrib/pngminus (Martin Zinser) |
| 558 | |
| 559 | Version 1.0.5c [November 26, 1999] |
| 560 | Moved png_get_header_version from png.h to png.c, to accommodate ansi2knr. |
| 561 | Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to |
| 562 | accommodate making DLL's: Moved usr_png_ver from global variable to function |
| 563 | png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and |
| 564 | eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays |
| 565 | into pngtypes.h. Eliminated use of global png_pass arrays. Declared the |
| 566 | png_CHNK and png_pass arrays to be "const". Made the global arrays |
| 567 | available to applications (although none are used in libpng itself) when |
| 568 | PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined. |
| 569 | Removed some extraneous "-I" from contrib/pngminus/makefile.std |
| 570 | Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2. |
| 571 | Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3 |
| 572 | |
| 573 | Version 1.0.5d [November 29, 1999] |
| 574 | Add type cast (png_const_charp) two places in png.c |
| 575 | Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays. |
| 576 | Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available |
| 577 | to applications a macro "PNG_USE_LOCAL_ARRAYS". |
| 578 | comment out (with #ifdef) all the new declarations when |
| 579 | PNG_USE_GLOBAL_ARRAYS is defined. |
| 580 | Added PNG_EXPORT_VAR macro to accommodate making DLL's. |
| 581 | |
| 582 | Version 1.0.5e [November 30, 1999] |
| 583 | Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text |
| 584 | structure; refactored the inflate/deflate support to make adding new chunks |
| 585 | with trailing compressed parts easier in the future, and added new functions |
| 586 | png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP, |
| 587 | png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond). |
| 588 | NOTE: Applications that write text chunks MUST define png_text->lang |
| 589 | before calling png_set_text(). It must be set to NULL if you want to |
| 590 | write tEXt or zTXt chunks. If you want your application to be able to |
| 591 | run with older versions of libpng, use |
| 592 | |
| 593 | #ifdef PNG_iTXt_SUPPORTED |
| 594 | png_text[i].lang = NULL; |
| 595 | #endif |
| 596 | |
| 597 | Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned |
| 598 | offsets (Eric S. Raymond). |
| 599 | Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into |
| 600 | PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED |
| 601 | macros, leaving the separate macros also available. |
| 602 | Removed comments on #endifs at the end of many short, non-nested #if-blocks. |
| 603 | |
| 604 | Version 1.0.5f [December 6, 1999] |
| 605 | Changed makefile.solaris to issue a warning about potential problems when |
| 606 | the ucb "ld" is in the path ahead of the ccs "ld". |
| 607 | Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3. |
| 608 | Added sCAL chunk support (Eric S. Raymond). |
| 609 | |
| 610 | Version 1.0.5g [December 7, 1999] |
| 611 | Fixed "png_free_spallettes" typo in png.h |
| 612 | Added code to handle new chunks in pngpread.c |
| 613 | Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block |
| 614 | Added "translated_key" to png_text structure and png_write_iTXt(). |
| 615 | Added code in pngwrite.c to work around a newly discovered zlib bug. |
| 616 | |
| 617 | Version 1.0.5h [December 10, 1999] |
| 618 | NOTE: regarding the note for version 1.0.5e, the following must also |
| 619 | be included in your code: |
| 620 | png_text[i].translated_key = NULL; |
| 621 | Unknown chunk handling is now supported. |
| 622 | Option to eliminate all floating point support was added. Some new |
| 623 | fixed-point functions such as png_set_gAMA_fixed() were added. |
| 624 | Expanded tabs and removed trailing blanks in source files. |
| 625 | |
| 626 | Version 1.0.5i [December 13, 1999] |
| 627 | Added some type casts to silence compiler warnings. |
| 628 | Renamed "png_free_spalette" to "png_free_spalettes" for consistency. |
| 629 | Removed leading blanks from a #define in pngvcrd.c |
| 630 | Added some parameters to the new png_set_keep_unknown_chunks() function. |
| 631 | Added a test for up->location != 0 in the first instance of writing |
| 632 | unknown chunks in pngwrite.c |
| 633 | Changed "num" to "i" in png_free_spalettes() and png_free_unknowns() to |
| 634 | prevent recursion. |
| 635 | Added png_free_hIST() function. |
| 636 | Various patches to fix bugs in the sCAL and integer cHRM processing, |
| 637 | and to add some convenience macros for use with sCAL. |
| 638 | |
| 639 | Version 1.0.5j [December 21, 1999] |
| 640 | Changed "unit" parameter of png_write_sCAL from png_byte to int, to work |
| 641 | around buggy compilers. |
| 642 | Added new type "png_fixed_point" for integers that hold float*100000 values |
| 643 | Restored backward compatibility of tEXt/zTXt chunk processing: |
| 644 | Restored the first four members of png_text to the same order as v.1.0.5d. |
| 645 | Added members "lang_key" and "itxt_length" to png_text struct. Set |
| 646 | text_length=0 when "text" contains iTXt data. Use the "compression" |
| 647 | member to distinguish among tEXt/zTXt/iTXt types. Added |
| 648 | PNG_ITXT_COMPRESSION_NONE (1) and PNG_ITXT_COMPRESSION_zTXt(2) macros. |
| 649 | The "Note" above, about backward incompatibility of libpng-1.0.5e, no |
| 650 | longer applies. |
| 651 | Fixed png_read|write_iTXt() to read|write parameters in the right order, |
| 652 | and to write the iTXt chunk after IDAT if it appears in the end_ptr. |
| 653 | Added pnggccrd.c, version of pngvcrd.c Intel assembler for gcc (Greg Roelofs) |
| 654 | Reversed the order of trying to write floating-point and fixed-point gAMA. |
| 655 | |
| 656 | Version 1.0.5k [December 27, 1999] |
| 657 | Added many parentheses, e.g., "if (a && b & c)" becomes "if (a && (b & c))" |
| 658 | Added png_handle_as_unknown() function (Glenn) |
| 659 | Added png_free_chunk_list() function and chunk_list and num_chunk_list members |
| 660 | of png_ptr. |
| 661 | Eliminated erroneous warnings about multiple sPLT chunks and sPLT-after-PLTE. |
| 662 | Fixed a libpng-1.0.5h bug in pngrutil.c that was issuing erroneous warnings |
| 663 | about ignoring incorrect gAMA with sRGB (gAMA was in fact not ignored) |
| 664 | Added png_free_tRNS(); png_set_tRNS() now malloc's its own trans array (ESR). |
| 665 | Define png_get_int_32 when oFFs chunk is supported as well as when pCAL is. |
| 666 | Changed type of proflen from png_int_32 to png_uint_32 in png_get_iCCP(). |
| 667 | |
| 668 | Version 1.0.5l [January 1, 2000] |
| 669 | Added functions png_set_read_user_chunk_fn() and png_get_user_chunk_ptr() |
| 670 | for setting a callback function to handle unknown chunks and for |
| 671 | retrieving the associated user pointer (Glenn). |
| 672 | |
| 673 | Version 1.0.5m [January 7, 2000] |
| 674 | Added high-level functions png_read_png(), png_write_png(), png_free_pixels(). |
| 675 | |
| 676 | Version 1.0.5n [January 9, 2000] |
| 677 | Added png_free_PLTE() function, and modified png_set_PLTE() to malloc its |
| 678 | own memory for info_ptr->palette. This makes it safe for the calling |
| 679 | application to free its copy of the palette any time after it calls |
| 680 | png_set_PLTE(). |
| 681 | |
| 682 | Version 1.0.5o [January 20, 2000] |
| 683 | Cosmetic changes only (removed some trailing blanks and TABs) |
| 684 | |
| 685 | Version 1.0.5p [January 31, 2000] |
| 686 | Renamed pngdll.mak to makefile.bd32 |
| 687 | Cosmetic changes in pngtest.c |
| 688 | |
| 689 | Version 1.0.5q [February 5, 2000] |
| 690 | Relocated the makefile.solaris warning about PATH problems. |
| 691 | Fixed pngvcrd.c bug by pushing/popping registers in mmxsupport (Bruce Oberg) |
| 692 | Revised makefile.gcmmx |
| 693 | Added PNG_SETJMP_SUPPORTED, PNG_SETJMP_NOT_SUPPORTED, and PNG_ABORT() macros |
| 694 | |
| 695 | Version 1.0.5r [February 7, 2000] |
| 696 | Removed superfluous prototype for png_get_itxt from png.h |
| 697 | Fixed a bug in pngrtran.c that improperly expanded the background color. |
| 698 | Return *num_text=0 from png_get_text() when appropriate, and fix documentation |
| 699 | of png_get_text() in libpng.txt/libpng.3. |
| 700 | |
| 701 | Version 1.0.5s [February 18, 2000] |
| 702 | Added "png_jmp_env()" macro to pngconf.h, to help people migrate to the |
| 703 | new error handler that's planned for the next libpng release, and changed |
| 704 | example.c, pngtest.c, and contrib programs to use this macro. |
| 705 | Revised some of the DLL-export macros in pngconf.h (Greg Roelofs) |
| 706 | Fixed a bug in png_read_png() that caused it to fail to expand some images |
| 707 | that it should have expanded. |
| 708 | Fixed some mistakes in the unused and undocumented INCH_CONVERSIONS functions |
| 709 | in pngget.c |
| 710 | Changed the allocation of palette, history, and trans arrays back to |
| 711 | the version 1.0.5 method (linking instead of copying) which restores |
| 712 | backward compatibility with version 1.0.5. Added some remarks about |
| 713 | that in example.c. Added "free_me" member to info_ptr and png_ptr |
| 714 | and added png_free_data() function. |
| 715 | Updated makefile.linux and makefile.gccmmx to make directories conditionally. |
| 716 | Made cosmetic changes to pngasmrd.h |
| 717 | Added png_set_rows() and png_get_rows(), for use with png_read|write_png(). |
| 718 | Modified png_read_png() to allocate info_ptr->row_pointers only if it |
| 719 | hasn't already been allocated. |
| 720 | |
| 721 | Version 1.0.5t [March 4, 2000] |
| 722 | Changed png_jmp_env() migration aiding macro to png_jmpbuf(). |
| 723 | Fixed "interlace" typo (should be "interlaced") in contrib/gregbook/read2-x.c |
| 724 | Fixed bug with use of PNG_BEFORE_IHDR bit in png_ptr->mode, introduced when |
| 725 | PNG_FLAG_HAVE_CHUNK_HEADER was moved into png_ptr->mode in version 1.0.5b |
| 726 | Files in contrib/gregbook were revised to use png_jmpbuf() and to select |
| 727 | a 24-bit visual if one is available, and to allow abbreviated options. |
| 728 | Files in contrib/pngminus were revised to use the png_jmpbuf() macro. |
| 729 | Removed spaces in makefile.linux and makefile.gcmmx, introduced in 1.0.5s |
| 730 | |
| 731 | Version 1.0.5u [March 5, 2000] |
| 732 | Simplified the code that detects old png.h in png.c and pngtest.c |
| 733 | Renamed png_spalette (_p, _pp) to png_sPLT_t (_tp, _tpp) |
| 734 | Increased precision of rgb_to_gray calculations from 8 to 15 bits and |
| 735 | added png_set_rgb_to_gray_fixed() function. |
| 736 | Added makefile.bc32 (32-bit Borland C++, C mode) |
| 737 | |
| 738 | Version 1.0.5v [March 11, 2000] |
| 739 | Added some parentheses to the png_jmpbuf macro definition. |
| 740 | Updated references to the zlib home page, which has moved to freesoftware.com. |
| 741 | Corrected bugs in documentation regarding png_read_row() and png_write_row(). |
| 742 | Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt. |
| 743 | Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3, |
| 744 | revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin) |
| 745 | |
| 746 | Version 1.0.6 [March 20, 2000] |
| 747 | Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c |
| 748 | Added makefile.sggcc (SGI IRIX with gcc) |
| 749 | |
| 750 | Version 1.0.6d [April 7, 2000] |
| 751 | Changed sprintf() to strcpy() in png_write_sCAL_s() to work without STDIO |
| 752 | Added data_length parameter to png_decompress_chunk() function |
| 753 | Revised documentation to remove reference to abandoned png_free_chnk functions |
| 754 | Fixed an error in png_rgb_to_gray_fixed() |
| 755 | Revised example.c, usage of png_destroy_write_struct(). |
| 756 | Renamed makefile.ibmvac3 to makefile.ibmc, added libpng.icc IBM project file |
| 757 | Added a check for info_ptr->free_me&PNG_FREE_TEXT when freeing text in png.c |
| 758 | Simplify png_sig_bytes() function to remove use of non-ISO-C strdup(). |
| 759 | |
| 760 | Version 1.0.6e [April 9, 2000] |
| 761 | Added png_data_freer() function. |
| 762 | In the code that checks for over-length tRNS chunks, added check of |
| 763 | info_ptr->num_trans as well as png_ptr->num_trans (Matthias Benckmann) |
| 764 | Minor revisions of libpng.txt/libpng.3. |
| 765 | Check for existing data and free it if the free_me flag is set, in png_set_*() |
| 766 | and png_handle_*(). |
| 767 | Only define PNG_WEIGHTED_FILTERS_SUPPORTED when PNG_FLOATING_POINT_SUPPORTED |
| 768 | is defined. |
| 769 | Changed several instances of PNG_NO_CONSOLE_ID to PNG_NO_STDIO in pngrutil.c |
| 770 | and mentioned the purposes of the two macros in libpng.txt/libpng.3. |
| 771 | |
| 772 | Version 1.0.6f [April 14, 2000] |
| 773 | Revised png_set_iCCP() and png_set_rows() to avoid prematurely freeing data. |
| 774 | Add checks in png_set_text() for NULL members of the input text structure. |
| 775 | Revised libpng.txt/libpng.3. |
| 776 | Removed superfluous prototype for png_set_iTXt from png.h |
| 777 | Removed "else" from pngread.c, after png_error(), and changed "0" to "length". |
| 778 | Changed several png_errors about malformed ancillary chunks to png_warnings. |
| 779 | |
| 780 | Version 1.0.6g [April 24, 2000] |
| 781 | Added png_pass-* arrays to pnggccrd.c when PNG_USE_LOCAL_ARRAYS is defined. |
| 782 | Relocated paragraph about png_set_background() in libpng.3/libpng.txt |
| 783 | and other revisions (Matthias Benckmann) |
| 784 | Relocated info_ptr->free_me, png_ptr->free_me, and other info_ptr and |
| 785 | png_ptr members to restore binary compatibility with libpng-1.0.5 |
| 786 | (breaks compatibility with libpng-1.0.6). |
| 787 | |
| 788 | Version 1.0.6h [April 24, 2000] |
| 789 | Changed shared library so-number pattern from 2.x.y.z to xy.z (this builds |
| 790 | libpng.so.10 & libpng.so.10.6h instead of libpng.so.2 & libpng.so.2.1.0.6h) |
| 791 | This is a temporary change for test purposes. |
| 792 | |
| 793 | Version 1.0.6i [May 2, 2000] |
| 794 | Rearranged some members at the end of png_info and png_struct, to put |
| 795 | unknown_chunks_num and free_me within the original size of the png_structs |
| 796 | and free_me, png_read_user_fn, and png_free_fn within the original png_info, |
| 797 | because some old applications allocate the structs directly instead of |
| 798 | using png_create_*(). |
| 799 | Added documentation of user memory functions in libpng.txt/libpng.3 |
| 800 | Modified png_read_png so that it will use user_allocated row_pointers |
| 801 | if present, unless free_me directs that it be freed, and added description |
| 802 | of the use of png_set_rows() and png_get_rows() in libpng.txt/libpng.3. |
| 803 | Added PNG_LEGACY_SUPPORTED macro, and #ifdef out all new (since version |
| 804 | 1.00) members of png_struct and png_info, to regain binary compatibility |
| 805 | when you define this macro. Capabilities lost in this event |
| 806 | are user transforms (new in version 1.0.0),the user transform pointer |
| 807 | (new in version 1.0.2), rgb_to_gray (new in 1.0.5), iCCP, sCAL, sPLT, |
| 808 | the high-level interface, and unknown chunks support (all new in 1.0.6). |
| 809 | This was necessary because of old applications that allocate the structs |
| 810 | directly as authors were instructed to do in libpng-0.88 and earlier, |
| 811 | instead of using png_create_*(). |
| 812 | Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which |
| 813 | can be used to detect codes that directly allocate the structs, and |
| 814 | code to check these modes in png_read_init() and png_write_init() and |
| 815 | generate a libpng error if the modes aren't set and PNG_LEGACY_SUPPORTED |
| 816 | was not defined. |
| 817 | Added makefile.intel and updated makefile.watcom (Pawel Mrochen) |
| 818 | |
| 819 | Version 1.0.6j [May 3, 2000] |
| 820 | Overloaded png_read_init() and png_write_init() with macros that convert |
| 821 | calls to png_read_init_2() or png_write_init_2() that check the version |
| 822 | and structure sizes. |
| 823 | |
| 824 | Version 1.0.7beta11 [May 7, 2000] |
| 825 | Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes |
| 826 | which are no longer used. |
| 827 | Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is |
| 828 | defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXT_SUPPORTED |
| 829 | is defined. |
| 830 | Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory |
| 831 | overrun when old applications fill the info_ptr->text structure directly. |
| 832 | Added PNGAPI macro, and added it to the definitions of all exported functions. |
| 833 | Relocated version macro definitions ahead of the includes of zlib.h and |
| 834 | pngconf.h in png.h. |
| 835 | |
| 836 | Version 1.0.7beta12 [May 12, 2000] |
| 837 | Revised pngset.c to avoid a problem with expanding the png_debug macro. |
| 838 | Deleted some extraneous defines from pngconf.h |
| 839 | Made PNG_NO_CONSOLE_IO the default condition when PNG_BUILD_DLL is defined. |
| 840 | Use MSC _RPTn debugging instead of fprintf if _MSC_VER is defined. |
| 841 | Added png_access_version_number() function. |
| 842 | Check for mask&PNG_FREE_CHNK (for TEXT, SCAL, PCAL) in png_free_data(). |
| 843 | Expanded libpng.3/libpng.txt information about png_data_freer(). |
| 844 | |
| 845 | Version 1.0.7beta14 [May 17, 2000] (beta13 was not published) |
| 846 | Changed pnggccrd.c and pngvcrd.c to handle bad adaptive filter types as |
| 847 | warnings instead of errors, as pngrutil.c does. |
| 848 | Set the PNG_INFO_IDAT valid flag in png_set_rows() so png_write_png() |
| 849 | will actually write IDATs. |
| 850 | Made the default PNG_USE_LOCAL_ARRAYS depend on PNG_DLL instead of WIN32. |
| 851 | Make png_free_data() ignore its final parameter except when freeing data |
| 852 | that can have multiple instances (text, sPLT, unknowns). |
| 853 | Fixed a new bug in png_set_rows(). |
| 854 | Removed info_ptr->valid tests from png_free_data(), as in version 1.0.5. |
| 855 | Added png_set_invalid() function. |
| 856 | Fixed incorrect illustrations of png_destroy_write_struct() in example.c. |
| 857 | |
| 858 | Version 1.0.7beta15 [May 30, 2000] |
| 859 | Revised the deliberately erroneous Linux setjmp code in pngconf.h to produce |
| 860 | fewer error messages. |
| 861 | Rearranged checks for Z_OK to check the most likely path first in pngpread.c |
| 862 | and pngwutil.c. |
| 863 | Added checks in pngtest.c for png_create_*() returning NULL, and mentioned |
| 864 | in libpng.txt/libpng.3 the need for applications to check this. |
| 865 | Changed names of png_default_*() functions in pngtest to pngtest_*(). |
| 866 | Changed return type of png_get_x|y_offset_*() from png_uint_32 to png_int_32. |
| 867 | Fixed some bugs in the unused PNG_INCH_CONVERSIONS functions in pngget.c |
| 868 | Set each pointer to NULL after freeing it in png_free_data(). |
| 869 | Worked around a problem in pngconf.h; AIX's strings.h defines an "index" |
| 870 | macro that conflicts with libpng's png_color_16.index. (Dimitri |
| 871 | Papadapoulos) |
| 872 | Added "msvc" directory with MSVC++ project files (Simon-Pierre Cadieux). |
| 873 | |
| 874 | Version 1.0.7beta16 [June 4, 2000] |
| 875 | Revised the workaround of AIX string.h "index" bug. |
| 876 | Added a check for overlength PLTE chunk in pngrutil.c. |
| 877 | Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer |
| 878 | indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler. |
| 879 | Added a warning in png_decompress_chunk() when it runs out of data, e.g. |
| 880 | when it tries to read an erroneous PhotoShop iCCP chunk. |
| 881 | Added PNG_USE_DLL macro. |
| 882 | Revised the copyright/disclaimer/license notice. |
| 883 | Added contrib/msvctest directory |
| 884 | |
| 885 | Version 1.0.7rc1 [June 9, 2000] |
| 886 | Corrected the definition of PNG_TRANSFORM_INVERT_ALPHA (0x0400 not 0x0200) |
| 887 | Added contrib/visupng directory (Willem van Schaik) |
| 888 | |
| 889 | Version 1.0.7beta18 [June 23, 2000] |
| 890 | Revised PNGAPI definition, and pngvcrd.c to work with __GCC__ |
| 891 | and do not redefine PNGAPI if it is passed in via a compiler directive. |
| 892 | Revised visupng/PngFile.c to remove returns from within the Try block. |
| 893 | Removed leading underscores from "_PNG_H" and "_PNG_SAVE_BSD_SOURCE" macros. |
| 894 | Updated contrib/visupng/cexcept.h to version 1.0.0. |
| 895 | Fixed bugs in pngwrite.c and pngwutil.c that prevented writing iCCP chunks. |
| 896 | |
| 897 | Version 1.0.7rc2 [June 28, 2000] |
| 898 | Updated license to include disclaimers required by UCITA. |
| 899 | Fixed "DJBPP" typo in pnggccrd.c introduced in beta18. |
| 900 | |
| 901 | Version 1.0.7 [July 1, 2000] |
| 902 | Revised the definition of "trans_values" in libpng.3/libpng.txt |
| 903 | |
| 904 | Version 1.0.8beta1 [July 8, 2000] |
| 905 | Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks. |
| 906 | Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and |
| 907 | pngwutil.c. |
| 908 | Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h. |
| 909 | Removed unused "#include <assert.h>" from png.c |
| 910 | Added WindowsCE support. |
| 911 | Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment. |
| 912 | |
| 913 | Version 1.0.8beta2 [July 10, 2000] |
| 914 | Added project files to the wince directory and made further revisions |
| 915 | of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE. |
| 916 | |
| 917 | Version 1.0.8beta3 [July 11, 2000] |
| 918 | Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS() |
| 919 | for indexed-color input files to avoid potential double-freeing trans array |
| 920 | under some unusual conditions; problem was introduced in version 1.0.6f. |
| 921 | Further revisions to pngtest.c and files in the wince subdirectory. |
| 922 | |
| 923 | Version 1.0.8beta4 [July 14, 2000] |
| 924 | Added the files pngbar.png and pngbar.jpg to the distribution. |
| 925 | Added makefile.cygwin, and cygwin support in pngconf.h |
| 926 | Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory) |
| 927 | |
| 928 | Version 1.0.8rc1 [July 16, 2000] |
| 929 | Revised png_debug() macros and statements to eliminate compiler warnings. |
| 930 | |
| 931 | Version 1.0.8 [July 24, 2000] |
| 932 | Added png_flush() in pngwrite.c, after png_write_IEND(). |
| 933 | Updated makefile.hpux to build a shared library. |
| 934 | |
| 935 | Version 1.0.9beta1 [November 10, 2000] |
| 936 | Fixed typo in scripts/makefile.hpux |
| 937 | Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser) |
| 938 | Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser) |
| 939 | Changed "cdrom.com" in documentation to "libpng.org" |
| 940 | Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg). |
| 941 | Changed type of "params" from voidp to png_voidp in png_read|write_png(). |
| 942 | Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h. |
| 943 | Revised the 3 instances of WRITEFILE in pngtest.c. |
| 944 | Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory. |
| 945 | Updated png.rc in dll/msvc project |
| 946 | Revised makefile.dec to define and use LIBPATH and INCPATH |
| 947 | Increased size of global png_libpng_ver[] array from 12 to 18 chars. |
| 948 | Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const. |
| 949 | Removed duplicate png_crc_finish() from png_handle_bKGD() function. |
| 950 | Added a warning when application calls png_read_update_info() multiple times. |
| 951 | Revised makefile.cygwin |
| 952 | Fixed bugs in iCCP support in pngrutil.c and pngwutil.c. |
| 953 | Replaced png_set_empty_plte_permitted() with png_permit_mng_features(). |
| 954 | |
| 955 | Version 1.0.9beta2 [November 19, 2000] |
| 956 | Renamed the "dll" subdirectory "projects". |
| 957 | Added borland project files to "projects" subdirectory. |
| 958 | Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate. |
| 959 | Add error message in png_set_compression_buffer_size() when malloc fails. |
| 960 | |
| 961 | Version 1.0.9beta3 [November 23, 2000] |
| 962 | Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project. |
| 963 | Removed the png_flush() in pngwrite.c that crashes some applications |
| 964 | that don't set png_output_flush_fn. |
| 965 | Added makefile.macosx and makefile.aix to scripts directory. |
| 966 | |
| 967 | Version 1.0.9beta4 [December 1, 2000] |
| 968 | Change png_chunk_warning to png_warning in png_check_keyword(). |
| 969 | Increased the first part of msg buffer from 16 to 18 in png_chunk_error(). |
| 970 | |
| 971 | Version 1.0.9beta5 [December 15, 2000] |
| 972 | Added support for filter method 64 (for PNG datastreams embedded in MNG). |
| 973 | |
| 974 | Version 1.0.9beta6 [December 18, 2000] |
| 975 | Revised png_set_filter() to accept filter method 64 when appropriate. |
| 976 | Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to |
| 977 | help prevent applications from using MNG features in PNG datastreams. |
| 978 | Added png_permit_mng_features() function. |
| 979 | Revised libpng.3/libpng.txt. Changed "filter type" to "filter method". |
| 980 | |
| 981 | Version 1.0.9rc1 [December 23, 2000] |
| 982 | Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c |
| 983 | Fixed error handling of unknown compression type in png_decompress_chunk(). |
| 984 | In pngconf.h, define __cdecl when _MSC_VER is defined. |
| 985 | |
| 986 | Version 1.0.9beta7 [December 28, 2000] |
| 987 | Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places. |
| 988 | Revised memory management in png_set_hIST and png_handle_hIST in a backward |
| 989 | compatible manner. PLTE and tRNS were revised similarly. |
| 990 | Revised the iCCP chunk reader to ignore trailing garbage. |
| 991 | |
| 992 | Version 1.0.9beta8 [January 12, 2001] |
| 993 | Moved pngasmrd.h into pngconf.h. |
| 994 | Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop. |
| 995 | |
| 996 | Version 1.0.9beta9 [January 15, 2001] |
| 997 | Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to |
| 998 | wince and msvc project module definition files. |
| 999 | Minor revision of makefile.cygwin. |
| 1000 | Fixed bug with progressive reading of narrow interlaced images in pngpread.c |
| 1001 | |
| 1002 | Version 1.0.9beta10 [January 16, 2001] |
| 1003 | Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined. |
| 1004 | Fixed "png_mmx_supported" typo in project definition files. |
| 1005 | |
| 1006 | Version 1.0.9beta11 [January 19, 2001] |
| 1007 | Updated makefile.sgi to make shared library. |
| 1008 | Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED |
| 1009 | by default, for the benefit of DLL forward compatibility. These will |
| 1010 | be re-enabled in version 1.2.0. |
| 1011 | |
| 1012 | Version 1.0.9rc2 [January 22, 2001] |
| 1013 | Revised cygwin support. |
| 1014 | |
| 1015 | Version 1.0.9 [January 31, 2001] |
| 1016 | Added check of cygwin's ALL_STATIC in pngconf.h |
| 1017 | Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos. |
| 1018 | |
| 1019 | Version 1.0.10beta1 [March 14, 2001] |
| 1020 | Revised makefile.dec, makefile.sgi, and makefile.sggcc; added makefile.hpgcc. |
| 1021 | Reformatted libpng.3 to eliminate bad line breaks. |
| 1022 | Added checks for _mmx_supported in the read_filter_row function of pnggccrd.c |
| 1023 | Added prototype for png_mmx_support() near the top of pnggccrd.c |
| 1024 | Moved some error checking from png_handle_IHDR to png_set_IHDR. |
| 1025 | Added PNG_NO_READ_SUPPORTED and PNG_NO_WRITE_SUPPORTED macros. |
| 1026 | Revised png_mmx_support() function in pnggccrd.c |
| 1027 | Restored version 1.0.8 PNG_WRITE_EMPTY_PLTE_SUPPORTED behavior in pngwutil.c |
| 1028 | Fixed memory leak in contrib/visupng/PngFile.c |
| 1029 | Fixed bugs in png_combine_row() in pnggccrd.c and pngvcrd.c (C version) |
| 1030 | Added warnings when retrieving or setting gamma=0. |
| 1031 | Increased the first part of msg buffer from 16 to 18 in png_chunk_warning(). |
| 1032 | |
| 1033 | Version 1.0.10rc1 [March 23, 2001] |
| 1034 | Changed all instances of memcpy, strcpy, and strlen to png_memcpy, png_strcpy, |
| 1035 | and png_strlen. |
| 1036 | Revised png_mmx_supported() function in pnggccrd.c to return proper value. |
| 1037 | Fixed bug in progressive reading (pngpread.c) with small images (height < 8). |
| 1038 | |
| 1039 | Version 1.0.10 [March 30, 2001] |
| 1040 | Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin |
| 1041 | Added beos project files (Chris Herborth) |
| 1042 | |
| 1043 | Version 1.0.11beta1 [April 3, 2001] |
| 1044 | Added type casts on several png_malloc() calls (Dimitri Papadapoulos). |
| 1045 | Removed a no-longer needed AIX work-around from pngconf.h |
| 1046 | Changed several "//" single-line comments to C-style in pnggccrd.c |
| 1047 | |
| 1048 | Version 1.0.11beta2 [April 11, 2001] |
| 1049 | Removed PNGAPI from several functions whose prototypes did not have PNGAPI. |
| 1050 | Updated scripts/pngos2.def |
| 1051 | |
| 1052 | Version 1.0.11beta3 [April 14, 2001] |
| 1053 | Added checking the results of many instances of png_malloc() for NULL |
| 1054 | |
| 1055 | Version 1.0.11beta4 [April 20, 2001] |
| 1056 | Undid the changes from version 1.0.11beta3. Added a check for NULL return |
| 1057 | from user's malloc_fn(). |
| 1058 | Removed some useless type casts of the NULL pointer. |
| 1059 | Added makefile.netbsd |
| 1060 | |
| 1061 | Version 1.0.11 [April 27, 2001] |
| 1062 | Revised makefile.netbsd |
| 1063 | |
| 1064 | Version 1.0.12beta1 [May 14, 2001] |
| 1065 | Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot) |
| 1066 | Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h |
| 1067 | Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings. |
| 1068 | Eliminated the png_error about apps using png_read|write_init(). Instead, |
| 1069 | libpng will reallocate the png_struct and info_struct if they are too small. |
| 1070 | This retains future binary compatibility for old applications written for |
| 1071 | libpng-0.88 and earlier. |
| 1072 | |
| 1073 | Version 1.2.0beta1 [May 6, 2001] |
| 1074 | Bumped DLLNUM to 2. |
| 1075 | Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED |
| 1076 | by default. |
| 1077 | Added runtime selection of MMX features. |
| 1078 | Added png_set_strip_error_numbers function and related macros. |
| 1079 | |
| 1080 | Version 1.2.0beta2 [May 7, 2001] |
| 1081 | Finished merging 1.2.0beta1 with version 1.0.11 |
| 1082 | Added a check for attempts to read or write PLTE in grayscale PNG datastreams. |
| 1083 | |
| 1084 | Version 1.2.0beta3 [May 17, 2001] |
| 1085 | Enabled user memory function by default. |
| 1086 | Modified png_create_struct so it passes user mem_ptr to user memory allocator. |
| 1087 | Increased png_mng_features flag from png_byte to png_uint_32. |
| 1088 | Bumped shared-library (so-number) and dll-number to 3. |
| 1089 | |
| 1090 | Version 1.2.0beta4 [June 23, 2001] |
| 1091 | Check for missing profile length field in iCCP chunk and free chunk_data |
| 1092 | in case of truncated iCCP chunk. |
| 1093 | Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc |
| 1094 | Bumped dll-number from 2 to 3 in makefile.cygwin |
| 1095 | Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly |
| 1096 | if user attempts to run it on an 8-bit display. |
| 1097 | Updated contrib/gregbook |
| 1098 | Use png_malloc instead of png_zalloc to allocate palette in pngset.c |
| 1099 | Updated makefile.ibmc |
| 1100 | Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes |
| 1101 | of png_write_oFFS width and height from png_uint_32 to png_int_32. |
| 1102 | Updated example.c |
| 1103 | Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c |
| 1104 | |
| 1105 | Version 1.2.0beta5 [August 8, 2001] |
| 1106 | Revised contrib/gregbook |
| 1107 | Revised makefile.gcmmx |
| 1108 | Revised pnggccrd.c to conditionally compile some thread-unsafe code only |
| 1109 | when PNG_THREAD_UNSAFE_OK is defined. |
| 1110 | Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with |
| 1111 | value exceeding 2^bit_depth-1 |
| 1112 | Revised makefile.sgi and makefile.sggcc |
| 1113 | Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c |
| 1114 | Removed restriction that do_invert_mono only operate on 1-bit opaque files |
| 1115 | |
| 1116 | Version 1.2.0 [September 1, 2001] |
| 1117 | Changed a png_warning() to png_debug() in pnggccrd.c |
| 1118 | Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC(). |
| 1119 | |
| 1120 | Version 1.2.1beta1 [October 19, 2001] |
| 1121 | Revised makefile.std in contrib/pngminus |
| 1122 | Include background_1 in png_struct regardless of gamma support. |
| 1123 | Revised makefile.netbsd and makefile.macosx, added makefile.darwin. |
| 1124 | Revised example.c to provide more details about using row_callback(). |
| 1125 | |
| 1126 | Version 1.2.1beta2 [October 25, 2001] |
| 1127 | Added type cast to each NULL appearing in a function call, except for |
| 1128 | WINCE functions. |
| 1129 | Added makefile.so9. |
| 1130 | |
| 1131 | Version 1.2.1beta3 [October 27, 2001] |
| 1132 | Removed type casts from all NULLs. |
| 1133 | Simplified png_create_struct_2(). |
| 1134 | |
| 1135 | Version 1.2.1beta4 [November 7, 2001] |
| 1136 | Revised png_create_info_struct() and png_creat_struct_2(). |
| 1137 | Added error message if png_write_info() was omitted. |
| 1138 | Type cast NULLs appearing in function calls when _NO_PROTO or |
| 1139 | PNG_TYPECAST_NULL is defined. |
| 1140 | |
| 1141 | Version 1.2.1rc1 [November 24, 2001] |
| 1142 | Type cast NULLs appearing in function calls except when PNG_NO_TYPECAST_NULL |
| 1143 | is defined. |
| 1144 | Changed typecast of "size" argument to png_size_t in pngmem.c calls to |
| 1145 | the user malloc_fn, to agree with the prototype in png.h |
| 1146 | Added a pop/push operation to pnggccrd.c, to preserve Eflag (Maxim Sobolev) |
| 1147 | Updated makefile.sgi to recognize LIBPATH and INCPATH. |
| 1148 | Updated various makefiles so "make clean" does not remove previous major |
| 1149 | version of the shared library. |
| 1150 | |
| 1151 | Version 1.2.1rc2 [December 4, 2001] |
| 1152 | Always allocate 256-entry internal palette, hist, and trans arrays, to |
| 1153 | avoid out-of-bounds memory reference caused by invalid PNG datastreams. |
| 1154 | Added a check for prefix_length > data_length in iCCP chunk handler. |
| 1155 | |
| 1156 | Version 1.2.1 [December 7, 2001] |
| 1157 | None. |
| 1158 | |
| 1159 | Version 1.2.2beta1 [February 22, 2002] |
| 1160 | Fixed a bug with reading the length of iCCP profiles (Larry Reeves). |
| 1161 | Revised makefile.linux, makefile.gcmmx, and makefile.sgi to generate |
| 1162 | libpng.a, libpng12.so (not libpng.so.3), and libpng12/png.h |
| 1163 | Revised makefile.darwin to remove "-undefined suppress" option. |
| 1164 | Added checks for gamma and chromaticity values over 21474.83, which exceed |
| 1165 | the limit for PNG unsigned 32-bit integers when encoded. |
| 1166 | Revised calls to png_create_read_struct() and png_create_write_struct() |
| 1167 | for simpler debugging. |
| 1168 | Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK) |
| 1169 | |
| 1170 | Version 1.2.2beta2 [February 23, 2002] |
| 1171 | Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths. |
| 1172 | Check for invalid image dimensions in png_get_IHDR. |
| 1173 | Added missing "fi;" in the install target of the SGI makefiles. |
| 1174 | Added install-static to all makefiles that make shared libraries. |
| 1175 | Always do gamma compensation when image is partially transparent. |
| 1176 | |
| 1177 | Version 1.2.2beta3 [March 7, 2002] |
| 1178 | Compute background.gray and background_1.gray even when color_type is RGB |
| 1179 | in case image gets reduced to gray later. |
| 1180 | Modified shared-library makefiles to install pkgconfig/libpngNN.pc. |
| 1181 | Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown |
| 1182 | Removed unused png_write_destroy_info prototype from png.h |
| 1183 | Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case |
| 1184 | Added install-shared target to all makefiles that make shared libraries. |
| 1185 | Stopped a double free of palette, hist, and trans when not using free_me. |
| 1186 | Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64. |
| 1187 | |
| 1188 | Version 1.2.2beta4 [March 8, 2002] |
| 1189 | Compute background.gray and background_1.gray even when color_type is RGB |
| 1190 | in case image gets reduced to gray later (Jason Summers). |
| 1191 | Relocated a misplaced /bin/rm in the "install-shared" makefile targets |
| 1192 | Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library. |
| 1193 | |
| 1194 | Version 1.2.2beta5 [March 26, 2002] |
| 1195 | Added missing PNGAPI to several function definitions. |
| 1196 | Check for invalid bit_depth or color_type in png_get_IHDR(), and |
| 1197 | check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen). |
| 1198 | Revised iTXt support to accept NULL for lang and lang_key. |
| 1199 | Compute gamma for color components of background even when color_type is gray. |
| 1200 | Changed "()" to "{}" in scripts/libpng.pc.in. |
| 1201 | Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN |
| 1202 | Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so |
| 1203 | |
| 1204 | Version 1.2.2beta6 [March 31, 2002] |
| 1205 | |
| 1206 | Version 1.0.13beta1 [March 31, 2002] |
| 1207 | Prevent png_zalloc() from trying to memset memory that it failed to acquire. |
| 1208 | Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate). |
| 1209 | Ensure that the right function (user or default) is used to free the |
| 1210 | png_struct after an error in png_create_read_struct_2(). |
| 1211 | |
| 1212 | Version 1.2.2rc1 [April 7, 2002] |
| 1213 | |
| 1214 | Version 1.0.13rc1 [April 7, 2002] |
| 1215 | Save the ebx register in pnggccrd.c (Sami Farin) |
| 1216 | Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner). |
| 1217 | Updated makefiles to put headers in include/libpng and remove old include/*.h. |
| 1218 | |
| 1219 | Version 1.2.2 [April 15, 2002] |
| 1220 | |
| 1221 | Version 1.0.13 [April 15, 2002] |
| 1222 | Revised description of png_set_filter() in libpng.3/libpng.txt. |
| 1223 | Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd |
| 1224 | |
| 1225 | Version 1.0.13patch01 [April 17, 2002] |
| 1226 | |
| 1227 | Version 1.2.2patch01 [April 17, 2002] |
| 1228 | Changed ${PNGMAJ}.${PNGVER} bug to ${PNGVER} in makefile.sgi and |
| 1229 | makefile.sggcc |
| 1230 | Fixed VER -> PNGVER typo in makefile.macosx and added install-static to |
| 1231 | install |
| 1232 | Added install: target to makefile.32sunu and makefile.64sunu |
| 1233 | |
| 1234 | Version 1.0.13patch03 [April 18, 2002] |
| 1235 | |
| 1236 | Version 1.2.2patch03 [April 18, 2002] |
| 1237 | Revised 15 makefiles to link libpng.a to libpngNN.a and the include libpng |
| 1238 | subdirectory to libpngNN subdirectory without the full pathname. |
| 1239 | Moved generation of libpng.pc from "install" to "all" in 15 makefiles. |
| 1240 | |
| 1241 | Version 1.2.3rc1 [April 28, 2002] |
| 1242 | Added install-man target to 15 makefiles (Dimitri Papadopolous-Orfanos). |
| 1243 | Added $(DESTDIR) feature to 24 makefiles (Tim Mooney) |
| 1244 | Fixed bug with $prefix, should be $(prefix) in makefile.hpux. |
| 1245 | Updated cygwin-specific portion of pngconf.h and revised makefile.cygwin |
| 1246 | Added a link from libpngNN.pc to libpng.pc in 15 makefiles. |
| 1247 | Added links from include/libpngNN/*.h to include/*.h in 24 makefiles. |
| 1248 | Revised makefile.darwin to make relative links without full pathname. |
| 1249 | Added setjmp() at the end of png_create_*_struct_2() in case user forgets |
| 1250 | to put one in their application. |
| 1251 | Restored png_zalloc() and png_zfree() prototypes to version 1.2.1 and |
| 1252 | removed them from module definition files. |
| 1253 | |
| 1254 | Version 1.2.3rc2 [May 1, 2002] |
| 1255 | Fixed bug in reporting number of channels in pngget.c and pngset.c, |
| 1256 | that was introduced in version 1.2.2beta5. |
| 1257 | Exported png_zalloc(), png_zfree(), png_default_read(), png_default_write(), |
| 1258 | png_default_flush(), and png_push_fill_buffer() and included them in |
| 1259 | module definition files. |
| 1260 | Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles. |
| 1261 | |
| 1262 | Version 1.2.3rc3 [May 1, 2002] |
| 1263 | Revised prototype for png_default_flush() |
| 1264 | Remove old libpng.pc and libpngNN.pc before installing new ones. |
| 1265 | |
| 1266 | Version 1.2.3rc4 [May 2, 2002] |
| 1267 | Typos in *.def files (png_default_read|write -> png_default_read|write_data) |
| 1268 | In makefiles, changed rm libpng.NN.pc to rm libpngNN.pc |
| 1269 | Added libpng-config and libpngNN-config and modified makefiles to install |
| 1270 | them. |
| 1271 | Changed $(MANPATH) to $(DESTDIR)$(MANPATH) in makefiles |
| 1272 | Added "Win32 DLL VB" configuration to projects/msvc/libpng.dsp |
| 1273 | |
| 1274 | Version 1.2.3rc5 [May 11, 2002] |
| 1275 | Changed "error" and "message" in prototypes to "error_message" and |
| 1276 | "warning_message" to avoid namespace conflict. |
| 1277 | Revised 15 makefiles to build libpng-config from libpng-config-*.in |
| 1278 | Once more restored png_zalloc and png_zfree to regular nonexported form. |
| 1279 | Restored png_default_read|write_data, png_default_flush, png_read_fill_buffer |
| 1280 | to nonexported form, but with PNGAPI, and removed them from module def |
| 1281 | files. |
| 1282 | |
| 1283 | Version 1.2.3rc6 [May 14, 2002] |
| 1284 | Removed "PNGAPI" from png_zalloc() and png_zfree() in png.c |
| 1285 | Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp. |
| 1286 | Removed leftover libpng-config "sed" script from four makefiles. |
| 1287 | Revised libpng-config creating script in 16 makefiles. |
| 1288 | |
| 1289 | Version 1.2.3 [May 22, 2002] |
| 1290 | Revised libpng-config target in makefile.cygwin. |
| 1291 | Removed description of png_set_mem_fn() from documentation. |
| 1292 | Revised makefile.freebsd. |
| 1293 | Minor cosmetic changes to 15 makefiles, e.g., $(DI) = $(DESTDIR)/$(INCDIR). |
| 1294 | Revised projects/msvc/README.txt |
| 1295 | Changed -lpng to -lpngNN in LDFLAGS in several makefiles. |
| 1296 | |
| 1297 | Version 1.2.4beta1 [May 24, 2002] |
| 1298 | Added libpng.pc and libpng-config to "all:" target in 16 makefiles. |
| 1299 | Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH) |
| 1300 | Added missing "\" before closing double quote in makefile.gcmmx. |
| 1301 | Plugged various memory leaks; added png_malloc_warn() and png_set_text_2() |
| 1302 | functions. |
| 1303 | |
| 1304 | Version 1.2.4beta2 [June 25, 2002] |
| 1305 | Plugged memory leak of png_ptr->current_text (Matt Holgate). |
| 1306 | Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison) |
| 1307 | Added -soname to the loader flags in makefile.dec, makefile.sgi, and |
| 1308 | makefile.sggcc. |
| 1309 | Added "test-installed" target to makefile.linux, makefile.gcmmx, |
| 1310 | makefile.sgi, and makefile.sggcc. |
| 1311 | |
| 1312 | Version 1.2.4beta3 [June 28, 2002] |
| 1313 | Plugged memory leak of row_buf in pngtest.c when there is a png_error(). |
| 1314 | Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data. |
| 1315 | Added "test-installed" target to makefile.32sunu, makefile.64sunu, |
| 1316 | makefile.beos, makefile.darwin, makefile.dec, makefile.macosx, |
| 1317 | makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9. |
| 1318 | |
| 1319 | Version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002] |
| 1320 | Added "test-installed" target to makefile.cygwin and makefile.sco. |
| 1321 | Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro. |
| 1322 | |
| 1323 | Version 1.2.4 and 1.0.14 [July 8, 2002] |
| 1324 | Changed png_warning() to png_error() when width is too large to process. |
| 1325 | |
| 1326 | Version 1.2.4patch01 [July 20, 2002] |
| 1327 | Revised makefile.cygwin to use DLL number 12 instead of 13. |
| 1328 | |
| 1329 | Version 1.2.5beta1 [August 6, 2002] |
| 1330 | Added code to contrib/gregbook/readpng2.c to ignore unused chunks. |
| 1331 | Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11) |
| 1332 | Removed some stray *.o files from contrib/gregbook. |
| 1333 | Changed png_error() to png_warning() about "Too much data" in pngpread.c |
| 1334 | and about "Extra compressed data" in pngrutil.c. |
| 1335 | Prevent png_ptr->pass from exceeding 7 in png_push_finish_row(). |
| 1336 | Updated makefile.hpgcc |
| 1337 | Updated png.c and pnggccrd.c handling of return from png_mmx_support() |
| 1338 | |
| 1339 | Version 1.2.5beta2 [August 15, 2002] |
| 1340 | Only issue png_warning() about "Too much data" in pngpread.c when avail_in |
| 1341 | is nonzero. |
| 1342 | Updated makefiles to install a separate libpng.so.3 with its own rpath. |
| 1343 | |
| 1344 | Version 1.2.5rc1 and 1.0.15rc1 [August 24, 2002] |
| 1345 | Revised makefiles to not remove previous minor versions of shared libraries. |
| 1346 | |
| 1347 | Version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002] |
| 1348 | Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared |
| 1349 | library loader directive. |
| 1350 | Added missing "$OBJSDLL" line to makefile.gcmmx. |
| 1351 | Added missing "; fi" to makefile.32sunu. |
| 1352 | |
| 1353 | Version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002] |
| 1354 | Revised libpng-config script. |
| 1355 | |
| 1356 | Version 1.2.5 and 1.0.15 [October 3, 2002] |
| 1357 | Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux, |
| 1358 | and makefile.aix. |
| 1359 | Relocated two misplaced PNGAPI lines in pngtest.c |
| 1360 | |
| 1361 | Version 1.2.6beta1 [October 22, 2002] |
| 1362 | Commented out warning about uninitialized mmx_support in pnggccrd.c. |
| 1363 | Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h. |
| 1364 | Relocated two more misplaced PNGAPI lines in pngtest.c |
| 1365 | Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams, |
| 1366 | introduced in version 1.0.2. |
| 1367 | Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu. |
| 1368 | |
| 1369 | Version 1.2.6beta2 [November 1, 2002] |
| 1370 | Added libpng-config "--ldopts" output. |
| 1371 | Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)" |
| 1372 | in makefiles. |
| 1373 | |
| 1374 | Version 1.2.6beta3 [July 18, 2004] |
| 1375 | Reverted makefile changes from version 1.2.6beta2 and some of the changes |
| 1376 | from version 1.2.6beta1; these will be postponed until version 1.2.7. |
| 1377 | Version 1.2.6 is going to be a simple bugfix release. |
| 1378 | Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile. |
| 1379 | Fixed potential overrun in pngerror.c by using strncpy instead of memcpy. |
| 1380 | Added "#!/bin/sh" at the top of configure, for recognition of the |
| 1381 | 'x' flag under Cygwin (Cosmin). |
| 1382 | Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin). |
| 1383 | Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin). |
| 1384 | Fixed the special memory handler for Borland C under DOS, in pngmem.c |
| 1385 | (Cosmin). |
| 1386 | Removed some spurious assignments in pngrutil.c (Cosmin). |
| 1387 | Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings |
| 1388 | on 16-bit platforms (Cosmin). |
| 1389 | Enclosed shift op expressions in parentheses, to silence warnings (Cosmin). |
| 1390 | Used proper type png_fixed_point, to avoid problems on 16-bit platforms, |
| 1391 | in png_handle_sRGB() (Cosmin). |
| 1392 | Added compression_type to png_struct, and optimized the window size |
| 1393 | inside the deflate stream (Cosmin). |
| 1394 | Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin). |
| 1395 | Fixed handling of unknown chunks that come after IDAT (Cosmin). |
| 1396 | Allowed png_error() and png_warning() to work even if png_ptr == NULL |
| 1397 | (Cosmin). |
| 1398 | Replaced row_info->rowbytes with row_bytes in png_write_find_filter() |
| 1399 | (Cosmin). |
| 1400 | Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre). |
| 1401 | Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded |
| 1402 | values in png.c (Simon-Pierre, Cosmin). |
| 1403 | Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre). |
| 1404 | Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc |
| 1405 | (Simon-Pierre). |
| 1406 | Moved the definition of PNG_HEADER_VERSION_STRING near the definitions |
| 1407 | of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin). |
| 1408 | Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin). |
| 1409 | Updated scripts/makefile.vc(a)win32 (Cosmin). |
| 1410 | Updated the MSVC project (Simon-Pierre, Cosmin). |
| 1411 | Updated the Borland C++ Builder project (Cosmin). |
| 1412 | Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin). |
| 1413 | Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin). |
| 1414 | Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin). |
| 1415 | Added extra guard around inclusion of Turbo C memory headers, in pngconf.h |
| 1416 | (Cosmin). |
| 1417 | Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to |
| 1418 | projects/cbuilder5/ (Cosmin). |
| 1419 | Moved projects/visualc6/png32ms.def to scripts/pngw32.def, |
| 1420 | and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin). |
| 1421 | Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin). |
| 1422 | Changed line endings to DOS style in cbuilder5 and visualc6 files, even |
| 1423 | in the tar.* distributions (Cosmin). |
| 1424 | Updated contrib/visupng/VisualPng.dsp (Cosmin). |
| 1425 | Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin). |
| 1426 | Added a separate distribution with "configure" and supporting files (Junichi). |
| 1427 | |
| 1428 | Version 1.2.6beta4 [July 28, 2004] |
| 1429 | Added user ability to change png_size_t via a PNG_SIZE_T macro. |
| 1430 | Added png_sizeof() and png_convert_size() functions. |
| 1431 | Added PNG_SIZE_MAX (maximum value of a png_size_t variable. |
| 1432 | Added check in png_malloc_default() for (size_t)size != (png_uint_32)size |
| 1433 | which would indicate an overflow. |
| 1434 | Changed sPLT failure action from png_error to png_warning and abandon chunk. |
| 1435 | Changed sCAL and iCCP failures from png_error to png_warning and abandon. |
| 1436 | Added png_get_uint_31(png_ptr, buf) function. |
| 1437 | Added PNG_UINT_32_MAX macro. |
| 1438 | Renamed PNG_MAX_UINT to PNG_UINT_31_MAX. |
| 1439 | Made png_zalloc() issue a png_warning and return NULL on potential |
| 1440 | overflow. |
| 1441 | Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x |
| 1442 | Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4. |
| 1443 | Revised Borland portion of png_malloc() to return NULL or issue |
| 1444 | png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK. |
| 1445 | Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove |
| 1446 | sequential read support. |
| 1447 | Added some "#if PNG_WRITE_SUPPORTED" blocks. |
| 1448 | Added #ifdef to remove some redundancy in png_malloc_default(). |
| 1449 | Use png_malloc instead of png_zalloc to allocate the pallete. |
| 1450 | |
| 1451 | Version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004] |
| 1452 | Fixed buffer overflow vulnerability in png_handle_tRNS() |
| 1453 | Fixed integer arithmetic overflow vulnerability in png_read_png(). |
| 1454 | Fixed some harmless bugs in png_handle_sBIT, etc, that would cause |
| 1455 | duplicate chunk types to go undetected. |
| 1456 | Fixed some timestamps in the -config version |
| 1457 | Rearranged order of processing of color types in png_handle_tRNS(). |
| 1458 | Added ROWBYTES macro to calculate rowbytes without integer overflow. |
| 1459 | Updated makefile.darwin and removed makefile.macosx from scripts directory. |
| 1460 | Imposed default one million column, one-million row limits on the image |
| 1461 | dimensions, and added png_set_user_limits() function to override them. |
| 1462 | Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro. |
| 1463 | Fixed wrong cast of returns from png_get_user_width|height_max(). |
| 1464 | Changed some "keep the compiler happy" from empty statements to returns, |
| 1465 | Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution |
| 1466 | |
| 1467 | Version 1.0.16rc2 and 1.2.6rc2 [August 7, 2004] |
| 1468 | Revised makefile.darwin and makefile.solaris. Removed makefile.macosx. |
| 1469 | Revised pngtest's png_debug_malloc() to use png_malloc() instead of |
| 1470 | png_malloc_default() which is not supposed to be exported. |
| 1471 | Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in |
| 1472 | pngpread.c. Bug was introduced in 1.2.6rc1. |
| 1473 | Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1. |
| 1474 | Fixed old bug in RGB to Gray transformation. |
| 1475 | Fixed problem with 64-bit compilers by casting arguments to abs() |
| 1476 | to png_int_32. |
| 1477 | Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9). |
| 1478 | Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin) |
| 1479 | Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles. |
| 1480 | Added code to update the row_info->colortype in png_do_read_filler() (MSB). |
| 1481 | |
| 1482 | Version 1.0.16rc3 and 1.2.6rc3 [August 9, 2004] |
| 1483 | Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid |
| 1484 | trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro. |
| 1485 | Revised documentation of png_set_keep_unknown_chunks(). |
| 1486 | Check handle_as_unknown status in pngpread.c, as in pngread.c previously. |
| 1487 | Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h |
| 1488 | Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c |
| 1489 | |
| 1490 | Version 1.0.16rc4 and 1.2.6rc4 [August 10, 2004] |
| 1491 | Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of |
| 1492 | "pinfo" was out of place). |
| 1493 | |
| 1494 | Version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004] |
| 1495 | Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED |
| 1496 | section of png.h where they were inadvertently placed in version rc3. |
| 1497 | |
| 1498 | Version 1.2.6 and 1.0.16 [August 15, 2004] |
| 1499 | Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1. |
| 1500 | |
| 1501 | Version 1.2.7beta1 [August 26, 2004] |
| 1502 | Removed unused pngasmrd.h file. |
| 1503 | Removed references to uu.net for archived files. Added references to |
| 1504 | PNG Spec (second edition) and the PNG ISO/IEC Standard. |
| 1505 | Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR. |
| 1506 | Fixed bug with "optimized window size" in the IDAT datastream, that |
| 1507 | causes libpng to write PNG files with incorrect zlib header bytes. |
| 1508 | |
| 1509 | Version 1.2.7beta2 [August 28, 2004] |
| 1510 | Fixed bug with sCAL chunk and big-endian machines (David Munro). |
| 1511 | Undid new code added in 1.2.6rc2 to update the color_type in |
| 1512 | png_set_filler(). |
| 1513 | Added png_set_add_alpha() that updates color type. |
| 1514 | |
| 1515 | Version 1.0.17rc1 and 1.2.7rc1 [September 4, 2004] |
| 1516 | Revised png_set_strip_filler() to not remove alpha if color_type has alpha. |
| 1517 | |
| 1518 | Version 1.2.7 and 1.0.17 [September 12, 2004] |
| 1519 | Added makefile.hp64 |
| 1520 | Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin |
| 1521 | |
| 1522 | Version 1.2.8beta1 [November 1, 2004] |
| 1523 | Fixed bug in png_text_compress() that would fail to complete a large block. |
| 1524 | Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during |
| 1525 | strip alpha operation in png_do_strip_filler(). |
| 1526 | Added PNG_1_2_X definition in pngconf.h |
| 1527 | Use #ifdef to comment out png_info_init in png.c and png_read_init in |
| 1528 | pngread.c (as of 1.3.0) |
| 1529 | |
| 1530 | Version 1.2.8beta2 [November 2, 2004] |
| 1531 | Reduce color_type to a nonalpha type after strip alpha operation in |
| 1532 | png_do_strip_filler(). |
| 1533 | |
| 1534 | Version 1.2.8beta3 [November 3, 2004] |
| 1535 | Revised definitions of PNG_MAX_UINT_32, PNG_MAX_SIZE, and PNG_MAXSUM |
| 1536 | |
| 1537 | Version 1.2.8beta4 [November 12, 2004] |
| 1538 | Fixed (again) definition of PNG_LIBPNG_VER_DLLNUM in png.h (Cosmin). |
| 1539 | Added PNG_LIBPNG_BUILD_PRIVATE in png.h (Cosmin). |
| 1540 | Set png_ptr->zstream.data_type to Z_BINARY, to avoid unnecessary detection |
| 1541 | of data type in deflate (Cosmin). |
| 1542 | Deprecated but continue to support SPECIALBUILD and PRIVATEBUILD in favor of |
| 1543 | PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING. |
| 1544 | |
| 1545 | Version 1.2.8beta5 [November 20, 2004] |
| 1546 | Use png_ptr->flags instead of png_ptr->transformations to pass |
| 1547 | PNG_STRIP_ALPHA info to png_do_strip_filler(), to preserve ABI |
| 1548 | compatibility. |
| 1549 | Revised handling of SPECIALBUILD, PRIVATEBUILD, |
| 1550 | PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING. |
| 1551 | |
| 1552 | Version 1.2.8rc1 [November 24, 2004] |
| 1553 | Moved handling of BUILD macros from pngconf.h to png.h |
| 1554 | Added definition of PNG_LIBPNG_BASE_TYPE in png.h, inadvertently |
| 1555 | omitted from beta5. |
| 1556 | Revised scripts/pngw32.rc |
| 1557 | Despammed mailing addresses by masking "@" with "at". |
| 1558 | Inadvertently installed a supposedly faster test version of pngrutil.c |
| 1559 | |
| 1560 | Version 1.2.8rc2 [November 26, 2004] |
| 1561 | Added two missing "\" in png.h |
| 1562 | Change tests in pngread.c and pngpread.c to |
| 1563 | if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA)) |
| 1564 | png_do_read_transformations(png_ptr); |
| 1565 | |
| 1566 | Version 1.2.8rc3 [November 28, 2004] |
| 1567 | Reverted pngrutil.c to version libpng-1.2.8beta5. |
| 1568 | Added scripts/makefile.elf with supporting code in pngconf.h for symbol |
| 1569 | versioning (John Bowler). |
| 1570 | |
| 1571 | Version 1.2.8rc4 [November 29, 2004] |
| 1572 | Added projects/visualc7 (Simon-pierre). |
| 1573 | |
| 1574 | Version 1.2.8rc5 [November 29, 2004] |
| 1575 | Fixed new typo in scripts/pngw32.rc |
| 1576 | |
| 1577 | Version 1.2.8 [December 3, 2004] |
| 1578 | Removed projects/visualc7, added projects/visualc71. |
| 1579 | |
| 1580 | Version 1.2.9beta1 [February 21, 2006] |
| 1581 | Initialized some structure members in pngwutil.c to avoid gcc-4.0.0 complaints |
| 1582 | Revised man page and libpng.txt to make it clear that one should not call |
| 1583 | png_read_end or png_write_end after png_read_png or png_write_png. |
| 1584 | Updated references to png-mng-implement mailing list. |
| 1585 | Fixed an incorrect typecast in pngrutil.c |
| 1586 | Added PNG_NO_READ_SUPPORTED conditional for making a write-only library. |
| 1587 | Added PNG_NO_WRITE_INTERLACING_SUPPORTED conditional. |
| 1588 | Optimized alpha-inversion loops in pngwtran.c |
| 1589 | Moved test for nonzero gamma outside of png_build_gamma_table() in pngrtran.c |
| 1590 | Make sure num_trans is <= 256 before copying data in png_set_tRNS(). |
| 1591 | Make sure num_palette is <= 256 before copying data in png_set_PLTE(). |
| 1592 | Interchanged order of write_swap_alpha and write_invert_alpha transforms. |
| 1593 | Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin). |
| 1594 | Optimized zlib window flag (CINFO) in contrib/pngsuite/*.png (Cosmin). |
| 1595 | Updated scripts/makefile.bc32 for Borland C++ 5.6 (Cosmin). |
| 1596 | Exported png_get_uint_32, png_save_uint_32, png_get_uint_16, png_save_uint_16, |
| 1597 | png_get_int_32, png_save_int_32, png_get_uint_31 (Cosmin). |
| 1598 | Added type cast (png_byte) in png_write_sCAL() (Cosmin). |
| 1599 | Fixed scripts/makefile.cygwin (Christian Biesinger, Cosmin). |
| 1600 | Default iTXt support was inadvertently enabled. |
| 1601 | |
| 1602 | Version 1.2.9beta2 [February 21, 2006] |
| 1603 | Check for png_rgb_to_gray and png_gray_to_rgb read transformations before |
| 1604 | checking for png_read_dither in pngrtran.c |
| 1605 | Revised checking of chromaticity limits to accommodate extended RGB |
| 1606 | colorspace (John Denker). |
| 1607 | Changed line endings in some of the project files to CRLF, even in the |
| 1608 | "Unix" tar distributions (Cosmin). |
| 1609 | Made png_get_int_32 and png_save_int_32 always available (Cosmin). |
| 1610 | Updated scripts/pngos2.def, scripts/pngw32.def and projects/wince/png32ce.def |
| 1611 | with the newly exported functions. |
| 1612 | Eliminated distributions without the "configure" script. |
| 1613 | Updated INSTALL instructions. |
| 1614 | |
| 1615 | Version 1.2.9beta3 [February 24, 2006] |
| 1616 | Fixed CRCRLF line endings in contrib/visupng/VisualPng.dsp |
| 1617 | Made libpng.pc respect EXEC_PREFIX (D. P. Kreil, J. Bowler) |
| 1618 | Removed reference to pngasmrd.h from Makefile.am |
| 1619 | Renamed CHANGES to ChangeLog. |
| 1620 | Renamed LICENSE to COPYING. |
| 1621 | Renamed ANNOUNCE to NEWS. |
| 1622 | Created AUTHORS file. |
| 1623 | |
| 1624 | Version 1.2.9beta4 [March 3, 2006] |
| 1625 | Changed definition of PKGCONFIG from $prefix/lib to $libdir in configure.ac |
| 1626 | Reverted to filenames LICENSE and ANNOUNCE; removed AUTHORS and COPYING. |
| 1627 | Removed newline from the end of some error and warning messages. |
| 1628 | Removed test for sqrt() from configure.ac and configure. |
| 1629 | Made swap tables in pngtrans.c PNG_CONST (Carlo Bramix). |
| 1630 | Disabled default iTXt support that was inadvertently enabled in |
| 1631 | libpng-1.2.9beta1. |
| 1632 | Added "OS2" to list of systems that don't need underscores, in pnggccrd.c |
| 1633 | Removed libpng version and date from *.c files. |
| 1634 | |
| 1635 | Version 1.2.9beta5 [March 4, 2006] |
| 1636 | Removed trailing blanks from source files. |
| 1637 | Put version and date of latest change in each source file, and changed |
| 1638 | copyright year accordingly. |
| 1639 | More cleanup of configure.ac, Makefile.am, and associated scripts. |
| 1640 | Restored scripts/makefile.elf which was inadvertently deleted. |
| 1641 | |
| 1642 | Version 1.2.9beta6 [March 6, 2006] |
| 1643 | Fixed typo (RELEASE) in configuration files. |
| 1644 | |
| 1645 | Version 1.2.9beta7 [March 7, 2006] |
| 1646 | Removed libpng.vers and libpng.sym from libpng12_la_SOURCES in Makefile.am |
| 1647 | Fixed inconsistent #ifdef's around png_sig_bytes() and png_set_sCAL_s() |
| 1648 | in png.h. |
| 1649 | Updated makefile.elf as suggested by debian. |
| 1650 | Made cosmetic changes to some makefiles, adding LN_SF and other macros. |
| 1651 | Made some makefiles accept "exec_prefix". |
| 1652 | |
| 1653 | Version 1.2.9beta8 [March 9, 2006] |
| 1654 | Fixed some "#if defined (..." which should be "#if defined(..." |
| 1655 | Bug introduced in libpng-1.2.8. |
| 1656 | Fixed inconsistency in definition of png_default_read_data() |
| 1657 | Restored blank that was lost from makefile.sggcc "clean" target in beta7. |
| 1658 | Revised calculation of "current" and "major" for irix in ltmain.sh |
| 1659 | Changed "mkdir" to "MKDIR_P" in some makefiles. |
| 1660 | Separated PNG_EXPAND and PNG_EXPAND_tRNS. |
| 1661 | Added png_set_expand_gray_1_2_4_to_8() and deprecated |
| 1662 | png_set_gray_1_2_4_to_8() which also expands tRNS to alpha. |
| 1663 | |
| 1664 | Version 1.2.9beta9 [March 10, 2006] |
| 1665 | Include "config.h" in pngconf.h when available. |
| 1666 | Added some checks for NULL png_ptr or NULL info_ptr (timeless) |
| 1667 | |
| 1668 | Version 1.2.9beta10 [March 20, 2006] |
| 1669 | Removed extra CR from contrib/visualpng/VisualPng.dsw (Cosmin) |
| 1670 | Made pnggccrd.c PIC-compliant (Christian Aichinger). |
| 1671 | Added makefile.mingw (Wolfgang Glas). |
| 1672 | Revised pngconf.h MMX checking. |
| 1673 | |
| 1674 | Version 1.2.9beta11 [March 22, 2006] |
| 1675 | Fixed out-of-order declaration in pngwrite.c that was introduced in beta9 |
| 1676 | Simplified some makefiles by using LIBSO, LIBSOMAJ, and LIBSOVER macros. |
| 1677 | |
| 1678 | Version 1.2.9rc1 [March 31, 2006] |
| 1679 | Defined PNG_USER_PRIVATEBUILD when including "pngusr.h" (Cosmin). |
| 1680 | Removed nonsensical assertion check from pngtest.c (Cosmin). |
| 1681 | |
| 1682 | Version 1.2.9 [April 14, 2006] |
| 1683 | Revised makefile.beos and added "none" selector in ltmain.sh |
| 1684 | |
| 1685 | Version 1.2.10beta1 [April 15, 2006] |
| 1686 | Renamed "config.h" to "png_conf.h" and revised Makefile.am to add |
| 1687 | -DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h |
| 1688 | to include png_conf.h only when PNG_BUILDING_LIBPNG is defined. |
| 1689 | |
| 1690 | Version 1.2.10beta2 [April 15, 2006] |
| 1691 | Manually updated Makefile.in and configure. Changed png_conf.h.in |
| 1692 | back to config.h. |
| 1693 | |
| 1694 | Version 1.2.10beta3 [April 15, 2006] |
| 1695 | Change png_conf.h back to config.h in pngconf.h. |
| 1696 | |
| 1697 | Version 1.2.10beta4 [April 16, 2006] |
| 1698 | Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*. |
| 1699 | |
| 1700 | Version 1.2.10beta5 [April 16, 2006] |
| 1701 | Added a configure check for compiling assembler code in pnggccrd.c |
| 1702 | |
| 1703 | Version 1.2.10beta6 [April 17, 2006] |
| 1704 | Revised the configure check for pnggccrd.c |
| 1705 | Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@ |
| 1706 | Added @LIBPNG_DEFINES@ to arguments when building libpng.sym |
| 1707 | |
| 1708 | Version 1.2.10beta7 [April 18, 2006] |
| 1709 | Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles. |
| 1710 | |
| 1711 | Version 1.2.10rc1 [April 19, 2006] |
| 1712 | Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD |
| 1713 | Fixed "LN_FS" typo in makefile.sco and makefile.solaris. |
| 1714 | |
| 1715 | Version 1.2.10rc2 [April 20, 2006] |
| 1716 | Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE |
| 1717 | in configure.ac and configure |
| 1718 | Made the configure warning about versioned symbols less arrogant. |
| 1719 | |
| 1720 | Version 1.2.10rc3 [April 21, 2006] |
| 1721 | Added a note in libpng.txt that png_set_sig_bytes(8) can be used when |
| 1722 | writing an embedded PNG without the 8-byte signature. |
| 1723 | Revised makefiles and configure to avoid making links to libpng.so.* |
| 1724 | |
| 1725 | Version 1.2.10 [April 23, 2006] |
| 1726 | Reverted configure to "rc2" state. |
| 1727 | |
| 1728 | Version 1.2.11beta1 [May 31, 2006] |
| 1729 | scripts/libpng.pc.in contained "configure" style version info and would |
| 1730 | not work with makefiles. |
| 1731 | The shared-library makefiles were linking to libpng.so.0 instead of |
| 1732 | libpng.so.3 compatibility as the library. |
| 1733 | |
| 1734 | Version 1.2.11beta2 [June 2, 2006] |
| 1735 | Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid |
| 1736 | buffer overflow. |
| 1737 | Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb) |
| 1738 | |
| 1739 | Version 1.2.11beta3 [June 5, 2006] |
| 1740 | Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin). |
| 1741 | Removed the accidental leftover Makefile.in~ (Cosmin). |
| 1742 | Avoided potential buffer overflow and optimized buffer in |
| 1743 | png_write_sCAL(), png_write_sCAL_s() (Cosmin). |
| 1744 | Removed the include directories and libraries from CFLAGS and LDFLAGS |
| 1745 | in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin). |
| 1746 | |
| 1747 | Version 1.2.11beta4 [June 6, 2006] |
| 1748 | Allow zero-length IDAT chunks after the entire zlib datastream, but not |
| 1749 | after another intervening chunk type. |
| 1750 | |
| 1751 | Version 1.0.19rc1, 1.2.11rc1 [June 13, 2006] |
| 1752 | Deleted extraneous square brackets from [config.h] in configure.ac |
| 1753 | |
| 1754 | Version 1.0.19rc2, 1.2.11rc2 [June 14, 2006] |
| 1755 | Added prototypes for PNG_INCH_CONVERSIONS functions to png.h |
| 1756 | Revised INSTALL and autogen.sh |
| 1757 | Fixed typo in several makefiles (-W1 should be -Wl) |
| 1758 | Added typedef for png_int_32 and png_uint_32 on 64-bit systems. |
| 1759 | |
| 1760 | Version 1.0.19rc3, 1.2.11rc3 [June 15, 2006] |
| 1761 | Removed the new typedefs for 64-bit systems (delay until version 1.4.0) |
| 1762 | Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid |
| 1763 | reading out of bounds. |
| 1764 | |
| 1765 | Version 1.0.19rc4, 1.2.11rc4 [June 15, 2006] |
| 1766 | Really removed the new typedefs for 64-bit systems. |
| 1767 | |
| 1768 | Version 1.0.19rc5, 1.2.11rc5 [June 22, 2006] |
| 1769 | Removed png_sig_bytes entry from scripts/pngw32.def |
| 1770 | |
| 1771 | Version 1.0.19, 1.2.11 [June 26, 2006] |
| 1772 | None. |
| 1773 | |
| 1774 | Version 1.0.20, 1.2.12 [June 27, 2006] |
| 1775 | Really increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid |
| 1776 | buffer overflow. |
| 1777 | |
| 1778 | Version 1.2.13beta1 [October 2, 2006] |
| 1779 | Removed AC_FUNC_MALLOC from configure.ac |
| 1780 | Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h |
| 1781 | Change "logical" to "bitwise" throughout documentation. |
| 1782 | Detect and fix attempt to write wrong iCCP profile length (CVE-2006-7244) |
| 1783 | |
| 1784 | Version 1.0.21, 1.2.13 [November 14, 2006] |
| 1785 | Fix potential buffer overflow in sPLT chunk handler. |
| 1786 | Fix Makefile.am to not try to link to noexistent files. |
| 1787 | Check all exported functions for NULL png_ptr. |
| 1788 | |
| 1789 | Version 1.2.14beta1 [November 17, 2006] |
| 1790 | Relocated three misplaced tests for NULL png_ptr. |
| 1791 | Built Makefile.in with automake-1.9.6 instead of 1.9.2. |
| 1792 | Build configure with autoconf-2.60 instead of 2.59 |
| 1793 | |
| 1794 | Version 1.2.14beta2 [November 17, 2006] |
| 1795 | Added some typecasts in png_zalloc(). |
| 1796 | |
| 1797 | Version 1.2.14rc1 [November 20, 2006] |
| 1798 | Changed "strtod" to "png_strtod" in pngrutil.c |
| 1799 | |
| 1800 | Version 1.0.22, 1.2.14 [November 27, 2006] |
| 1801 | Added missing "$(srcdir)" in Makefile.am and Makefile.in |
| 1802 | |
| 1803 | Version 1.2.15beta1 [December 3, 2006] |
| 1804 | Generated configure with autoconf-2.61 instead of 2.60 |
| 1805 | Revised configure.ac to update libpng.pc and libpng-config. |
| 1806 | |
| 1807 | Version 1.2.15beta2 [December 3, 2006] |
| 1808 | Always export MMX asm functions, just stubs if not building pnggccrd.c |
| 1809 | |
| 1810 | Version 1.2.15beta3 [December 4, 2006] |
| 1811 | Add "png_bytep" typecast to profile while calculating length in pngwutil.c |
| 1812 | |
| 1813 | Version 1.2.15beta4 [December 7, 2006] |
| 1814 | Added scripts/CMakeLists.txt |
| 1815 | Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta |
| 1816 | |
| 1817 | Version 1.2.15beta5 [December 7, 2006] |
| 1818 | Changed some instances of PNG_ASSEMBLER_* to PNG_MMX_* in pnggccrd.c |
| 1819 | Revised scripts/CMakeLists.txt |
| 1820 | |
| 1821 | Version 1.2.15beta6 [December 13, 2006] |
| 1822 | Revised scripts/CMakeLists.txt and configure.ac |
| 1823 | |
| 1824 | Version 1.2.15rc1 [December 18, 2006] |
| 1825 | Revised scripts/CMakeLists.txt |
| 1826 | |
| 1827 | Version 1.2.15rc2 [December 21, 2006] |
| 1828 | Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers. |
| 1829 | Added scripts/makefile.nommx |
| 1830 | |
| 1831 | Version 1.2.15rc3 [December 25, 2006] |
| 1832 | Fixed shared library numbering error that was introduced in 1.2.15beta6. |
| 1833 | |
| 1834 | Version 1.2.15rc4 [December 27, 2006] |
| 1835 | Fixed handling of rgb_to_gray when png_ptr->color.gray isn't set. |
| 1836 | |
| 1837 | Version 1.2.15rc5 [December 31, 2006] |
| 1838 | Revised handling of rgb_to_gray. |
| 1839 | |
| 1840 | Version 1.2.15 [January 5, 2007] |
| 1841 | Added some (unsigned long) typecasts in pngtest.c to avoid printing errors. |
| 1842 | |
| 1843 | Version 1.2.16beta1 [January 6, 2007] |
| 1844 | Fix bugs in makefile.nommx |
| 1845 | |
| 1846 | Version 1.2.16beta2 [January 16, 2007] |
| 1847 | Revised scripts/CMakeLists.txt |
| 1848 | |
| 1849 | Version 1.2.16 [January 31, 2007] |
| 1850 | No changes. |
| 1851 | |
| 1852 | Version 1.2.17beta1 [March 6, 2007] |
| 1853 | Revised scripts/CMakeLists.txt to install both shared and static libraries. |
| 1854 | Deleted a redundant line from pngset.c. |
| 1855 | |
| 1856 | Version 1.2.17beta2 [April 26, 2007] |
| 1857 | Relocated misplaced test for png_ptr == NULL in pngpread.c |
| 1858 | Change "==" to "&" for testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN |
| 1859 | flags. |
| 1860 | Changed remaining instances of PNG_ASSEMBLER_* to PNG_MMX_* |
| 1861 | Added pngerror() when write_IHDR fails in deflateInit2(). |
| 1862 | Added "const" to some array declarations. |
| 1863 | Mention examples of libpng usage in the libpng*.txt and libpng.3 documents. |
| 1864 | |
| 1865 | Version 1.2.17rc1 [May 4, 2007] |
| 1866 | No changes. |
| 1867 | |
| 1868 | Version 1.2.17rc2 [May 8, 2007] |
| 1869 | Moved several PNG_HAVE_* macros out of PNG_INTERNAL because applications |
| 1870 | calling set_unknown_chunk_location() need them. |
| 1871 | Changed transformation flag from PNG_EXPAND_tRNS to PNG_EXPAND in |
| 1872 | png_set_expand_gray_1_2_4_to_8(). |
| 1873 | Added png_ptr->unknown_chunk to hold working unknown chunk data, so it |
| 1874 | can be free'ed in case of error. Revised unknown chunk handling in |
| 1875 | pngrutil.c and pngpread.c to use this structure. |
| 1876 | |
| 1877 | Version 1.2.17rc3 [May 8, 2007] |
| 1878 | Revised symbol-handling in configure script. |
| 1879 | |
| 1880 | Version 1.2.17rc4 [May 10, 2007] |
| 1881 | Revised unknown chunk handling to avoid storing unknown critical chunks. |
| 1882 | |
| 1883 | Version 1.0.25 [May 15, 2007] |
| 1884 | Version 1.2.17 [May 15, 2007] |
| 1885 | Added "png_ptr->num_trans=0" before error return in png_handle_tRNS, |
| 1886 | to eliminate a vulnerability (CVE-2007-2445, CERT VU#684664) |
| 1887 | |
| 1888 | Version 1.0.26 [May 15, 2007] |
| 1889 | Version 1.2.18 [May 15, 2007] |
| 1890 | Reverted the libpng-1.2.17rc3 change to symbol-handling in configure script |
| 1891 | |
| 1892 | Version 1.2.19beta1 [May 18, 2007] |
| 1893 | Changed "const static" to "static PNG_CONST" everywhere, mostly undoing |
| 1894 | change of libpng-1.2.17beta2. Changed other "const" to "PNG_CONST" |
| 1895 | Changed some handling of unused parameters, to avoid compiler warnings. |
| 1896 | "if (unused == NULL) return;" becomes "unused = unused". |
| 1897 | |
| 1898 | Version 1.2.19beta2 [May 18, 2007] |
| 1899 | Only use the valid bits of tRNS value in png_do_expand() (Brian Cartier) |
| 1900 | |
| 1901 | Version 1.2.19beta3 [May 19, 2007] |
| 1902 | Add some "png_byte" typecasts in png_check_keyword() and write new_key |
| 1903 | instead of key in zTXt chunk (Kevin Ryde). |
| 1904 | |
| 1905 | Version 1.2.19beta4 [May 21, 2007] |
| 1906 | Add png_snprintf() function and use it in place of sprint() for improved |
| 1907 | defense against buffer overflows. |
| 1908 | |
| 1909 | Version 1.2.19beta5 [May 21, 2007] |
| 1910 | Fixed png_handle_tRNS() to only use the valid bits of tRNS value. |
| 1911 | Changed handling of more unused parameters, to avoid compiler warnings. |
| 1912 | Removed some PNG_CONST in pngwutil.c to avoid compiler warnings. |
| 1913 | |
| 1914 | Version 1.2.19beta6 [May 22, 2007] |
| 1915 | Added some #ifdef PNG_MMX_CODE_SUPPORTED where needed in pngvcrd.c |
| 1916 | Added a special "_MSC_VER" case that defines png_snprintf to _snprintf |
| 1917 | |
| 1918 | Version 1.2.19beta7 [May 22, 2007] |
| 1919 | Squelched png_squelch_warnings() in pnggccrd.c and added |
| 1920 | an #ifdef PNG_MMX_CODE_SUPPORTED block around the declarations that caused |
| 1921 | the warnings that png_squelch_warnings was squelching. |
| 1922 | |
| 1923 | Version 1.2.19beta8 [May 22, 2007] |
| 1924 | Removed __MMX__ from test in pngconf.h. |
| 1925 | |
| 1926 | Version 1.2.19beta9 [May 23, 2007] |
| 1927 | Made png_squelch_warnings() available via PNG_SQUELCH_WARNINGS macro. |
| 1928 | Revised png_squelch_warnings() so it might work. |
| 1929 | Updated makefile.sgcc and makefile.solaris; added makefile.solaris-x86. |
| 1930 | |
| 1931 | Version 1.2.19beta10 [May 24, 2007] |
| 1932 | Resquelched png_squelch_warnings(), use "__attribute__((used))" instead. |
| 1933 | |
| 1934 | Version 1.4.0beta1 [April 20, 2006] |
| 1935 | Enabled iTXt support (changes png_struct, thus requires so-number change). |
| 1936 | Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED |
| 1937 | Eliminated PNG_1_0_X and PNG_1_2_X macros. |
| 1938 | Removed deprecated functions png_read_init, png_write_init, png_info_init, |
| 1939 | png_permit_empty_plte, png_set_gray_1_2_4_to_8, png_check_sig, and |
| 1940 | removed the deprecated macro PNG_MAX_UINT. |
| 1941 | Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h |
| 1942 | Removed many WIN32_WCE #ifdefs (Cosmin). |
| 1943 | Reduced dependency on C-runtime library when on Windows (Simon-Pierre) |
| 1944 | Replaced sprintf() with png_sprintf() (Simon-Pierre) |
| 1945 | |
| 1946 | Version 1.4.0beta2 [April 20, 2006] |
| 1947 | Revised makefiles and configure to avoid making links to libpng.so.* |
| 1948 | Moved some leftover MMX-related defines from pngconf.h to pngintrn.h |
| 1949 | Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def |
| 1950 | |
| 1951 | Version 1.4.0beta3 [May 10, 2006] |
| 1952 | Updated scripts/pngw32.def to comment out MMX functions. |
| 1953 | Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros. |
| 1954 | Scripts/libpng.pc.in contained "configure" style version info and would |
| 1955 | not work with makefiles. |
| 1956 | Revised pngconf.h and added pngconf.h.in, so makefiles and configure can |
| 1957 | pass defines to libpng and applications. |
| 1958 | |
| 1959 | Version 1.4.0beta4 [May 11, 2006] |
| 1960 | Revised configure.ac, Makefile.am, and many of the makefiles to write |
| 1961 | their defines in pngconf.h. |
| 1962 | |
| 1963 | Version 1.4.0beta5 [May 15, 2006] |
| 1964 | Added a missing semicolon in Makefile.am and Makefile.in |
| 1965 | Deleted extraneous square brackets from configure.ac |
| 1966 | |
| 1967 | Version 1.4.0beta6 [June 2, 2006] |
| 1968 | Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid |
| 1969 | buffer overflow. |
| 1970 | Changed sonum from 0 to 1. |
| 1971 | Removed unused prototype for png_check_sig() from png.h |
| 1972 | |
| 1973 | Version 1.4.0beta7 [June 16, 2006] |
| 1974 | Exported png_write_sig (Cosmin). |
| 1975 | Optimized buffer in png_handle_cHRM() (Cosmin). |
| 1976 | Set pHYs = 2835 x 2835 pixels per meter, and added |
| 1977 | sCAL = 0.352778e-3 x 0.352778e-3 meters, in pngtest.png (Cosmin). |
| 1978 | Added png_set_benign_errors(), png_benign_error(), png_chunk_benign_error(). |
| 1979 | Added typedef for png_int_32 and png_uint_32 on 64-bit systems. |
| 1980 | Added "(unsigned long)" typecast on png_uint_32 variables in printf lists. |
| 1981 | |
| 1982 | Version 1.4.0beta8 [June 22, 2006] |
| 1983 | Added demonstration of user chunk support in pngtest.c, to support the |
| 1984 | public sTER chunk and a private vpAg chunk. |
| 1985 | |
| 1986 | Version 1.4.0beta9 [July 3, 2006] |
| 1987 | Removed ordinals from scripts/pngw32.def and removed png_info_int and |
| 1988 | png_set_gray_1_2_4_to_8 entries. |
| 1989 | Inline call of png_get_uint_32() in png_get_uint_31(). |
| 1990 | Use png_get_uint_31() to get vpAg width and height in pngtest.c |
| 1991 | Removed WINCE and Netware projects. |
| 1992 | Removed standalone Y2KINFO file. |
| 1993 | |
| 1994 | Version 1.4.0beta10 [July 12, 2006] |
| 1995 | Eliminated automatic copy of pngconf.h to pngconf.h.in from configure and |
| 1996 | some makefiles, because it was not working reliably. Instead, distribute |
| 1997 | pngconf.h.in along with pngconf.h and cause configure and some of the |
| 1998 | makefiles to update pngconf.h from pngconf.h.in. |
| 1999 | Added pngconf.h to DEPENDENCIES in Makefile.am |
| 2000 | |
| 2001 | Version 1.4.0beta11 [August 19, 2006] |
| 2002 | Removed AC_FUNC_MALLOC from configure.ac. |
| 2003 | Added a warning when writing iCCP profile with mismatched profile length. |
| 2004 | Patched pnggccrd.c to assemble on x86_64 platforms. |
| 2005 | Moved chunk header reading into a separate function png_read_chunk_header() |
| 2006 | in pngrutil.c. The chunk header (len+sig) is now serialized in a single |
| 2007 | operation (Cosmin). |
| 2008 | Implemented support for I/O states. Added png_ptr member io_state, and |
| 2009 | functions png_get_io_chunk_name() and png_get_io_state() in pngget.c |
| 2010 | (Cosmin). |
| 2011 | Added png_get_io_chunk_name and png_get_io_state to scripts/*.def (Cosmin). |
| 2012 | Renamed scripts/pngw32.* to scripts/pngwin.* (Cosmin). |
| 2013 | Removed the include directories and libraries from CFLAGS and LDFLAGS |
| 2014 | in scripts/makefile.gcc (Cosmin). |
| 2015 | Used png_save_uint_32() to set vpAg width and height in pngtest.c (Cosmin). |
| 2016 | Cast to proper type when getting/setting vpAg units in pngtest.c (Cosmin). |
| 2017 | Added pngintrn.h to the Visual C++ projects (Cosmin). |
| 2018 | Removed scripts/list (Cosmin). |
| 2019 | Updated copyright year in scripts/pngwin.def (Cosmin). |
| 2020 | Removed PNG_TYPECAST_NULL and used standard NULL consistently (Cosmin). |
| 2021 | Disallowed the user to redefine png_size_t, and enforced a consistent use |
| 2022 | of png_size_t across libpng (Cosmin). |
| 2023 | Changed the type of png_ptr->rowbytes, PNG_ROWBYTES() and friends |
| 2024 | to png_size_t (Cosmin). |
| 2025 | Removed png_convert_size() and replaced png_sizeof with sizeof (Cosmin). |
| 2026 | Removed some unnecessary type casts (Cosmin). |
| 2027 | Changed prototype of png_get_compression_buffer_size() and |
| 2028 | png_set_compression_buffer_size() to work with png_size_t instead of |
| 2029 | png_uint_32 (Cosmin). |
| 2030 | Removed png_memcpy_check() and png_memset_check() (Cosmin). |
| 2031 | Fixed a typo (png_byte --> png_bytep) in libpng.3 and libpng.txt (Cosmin). |
| 2032 | Clarified that png_zalloc() does not clear the allocated memory, |
| 2033 | and png_zalloc() and png_zfree() cannot be PNGAPI (Cosmin). |
| 2034 | Renamed png_mem_size_t to png_alloc_size_t, fixed its definition in |
| 2035 | pngconf.h, and used it in all memory allocation functions (Cosmin). |
| 2036 | Renamed pngintrn.h to pngpriv.h, added a comment at the top of the file |
| 2037 | mentioning that the symbols declared in that file are private, and |
| 2038 | updated the scripts and the Visual C++ projects accordingly (Cosmin). |
| 2039 | Removed circular references between pngconf.h and pngconf.h.in in |
| 2040 | scripts/makefile.vc*win32 (Cosmin). |
| 2041 | Removing trailing '.' from the warning and error messages (Cosmin). |
| 2042 | Added pngdefs.h that is built by makefile or configure, instead of |
| 2043 | pngconf.h.in (Glenn). |
| 2044 | Detect and fix attempt to write wrong iCCP profile length. |
| 2045 | |
| 2046 | Version 1.4.0beta12 [October 19, 2006] |
| 2047 | Changed "logical" to "bitwise" in the documentation. |
| 2048 | Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h |
| 2049 | Add a typecast to stifle compiler warning in pngrutil.c |
| 2050 | |
| 2051 | Version 1.4.0beta13 [November 10, 2006] |
| 2052 | Fix potential buffer overflow in sPLT chunk handler. |
| 2053 | Fix Makefile.am to not try to link to noexistent files. |
| 2054 | |
| 2055 | Version 1.4.0beta14 [November 15, 2006] |
| 2056 | Check all exported functions for NULL png_ptr. |
| 2057 | |
| 2058 | Version 1.4.0beta15 [November 17, 2006] |
| 2059 | Relocated two misplaced tests for NULL png_ptr. |
| 2060 | Built Makefile.in with automake-1.9.6 instead of 1.9.2. |
| 2061 | Build configure with autoconf-2.60 instead of 2.59 |
| 2062 | Add "install: all" in Makefile.am so "configure; make install" will work. |
| 2063 | |
| 2064 | Version 1.4.0beta16 [November 17, 2006] |
| 2065 | Added a typecast in png_zalloc(). |
| 2066 | |
| 2067 | Version 1.4.0beta17 [December 4, 2006] |
| 2068 | Changed "new_key[79] = '\0';" to "(*new_key)[79] = '\0';" in pngwutil.c |
| 2069 | Add "png_bytep" typecast to profile while calculating length in pngwutil.c |
| 2070 | |
| 2071 | Version 1.4.0beta18 [December 7, 2006] |
| 2072 | Added scripts/CMakeLists.txt |
| 2073 | |
| 2074 | Version 1.4.0beta19 [May 16, 2007] |
| 2075 | Revised scripts/CMakeLists.txt |
| 2076 | Rebuilt configure and Makefile.in with newer tools. |
| 2077 | Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers. |
| 2078 | Added scripts/makefile.nommx |
| 2079 | |
| 2080 | Version 1.4.0beta20 [July 9, 2008] |
| 2081 | Moved several PNG_HAVE_* macros from pngpriv.h to png.h because applications |
| 2082 | calling set_unknown_chunk_location() need them. |
| 2083 | Moved several macro definitions from pngpriv.h to pngconf.h |
| 2084 | Merge with changes to the 1.2.X branch, as of 1.2.30beta04. |
| 2085 | Deleted all use of the MMX assembler code and Intel-licensed optimizations. |
| 2086 | Revised makefile.mingw |
| 2087 | |
| 2088 | Version 1.4.0beta21 [July 21, 2008] |
| 2089 | Moved local array "chunkdata" from pngrutil.c to the png_struct, so |
| 2090 | it will be freed by png_read_destroy() in case of a read error (Kurt |
| 2091 | Christensen). |
| 2092 | |
| 2093 | Version 1.4.0beta22 [July 21, 2008] |
| 2094 | Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking. |
| 2095 | |
| 2096 | Version 1.4.0beta23 [July 22, 2008] |
| 2097 | Change "chunkdata = NULL" to "png_ptr->chunkdata = NULL" several places in |
| 2098 | png_decompress_chunk(). |
| 2099 | |
| 2100 | Version 1.4.0beta24 [July 25, 2008] |
| 2101 | Change all remaining "chunkdata" to "png_ptr->chunkdata" in |
| 2102 | png_decompress_chunk(), and remove "chunkdata" from parameter list. |
| 2103 | Put a call to png_check_chunk_name() in png_read_chunk_header(). |
| 2104 | Revised png_check_chunk_name() to reject a name with a lowercase 3rd byte. |
| 2105 | Removed two calls to png_check_chunk_name() occuring later in the process. |
| 2106 | Define PNG_NO_ERROR_NUMBERS by default in pngconf.h |
| 2107 | |
| 2108 | Version 1.4.0beta25 [July 30, 2008] |
| 2109 | Added a call to png_check_chunk_name() in pngpread.c |
| 2110 | Reverted png_check_chunk_name() to accept a name with a lowercase 3rd byte. |
| 2111 | Added png_push_have_buffer() function to pngpread.c |
| 2112 | Eliminated PNG_BIG_ENDIAN_SUPPORTED and associated png_get_* macros. |
| 2113 | Made inline expansion of png_get_*() optional with PNG_USE_READ_MACROS. |
| 2114 | Eliminated all PNG_USELESS_TESTS and PNG_CORRECT_PALETTE_SUPPORTED code. |
| 2115 | Synced contrib directory and configure files with libpng-1.2.30beta06. |
| 2116 | Eliminated no-longer-used pngdefs.h (but it's still built in the makefiles) |
| 2117 | Relocated a misplaced "#endif /* PNG_NO_WRITE_FILTER */" in pngwutil.c |
| 2118 | |
| 2119 | Version 1.4.0beta26 [August 4, 2008] |
| 2120 | Removed png_push_have_buffer() function in pngpread.c. It increased the |
| 2121 | compiled library size slightly. |
| 2122 | Changed "-Wall" to "-W -Wall" in the CFLAGS in all makefiles (Cosmin Truta) |
| 2123 | Declared png_ptr "volatile" in pngread.c and pngwrite.c to avoid warnings. |
| 2124 | Updated contrib/visupng/cexcept.h to version 2.0.1 |
| 2125 | Added PNG_LITERAL_CHARACTER macros for #, [, and ]. |
| 2126 | |
| 2127 | Version 1.4.0beta27 [August 5, 2008] |
| 2128 | Revised usage of PNG_LITERAL_SHARP in pngerror.c. |
| 2129 | Moved newline character from individual png_debug messages into the |
| 2130 | png_debug macros. |
| 2131 | Allow user to #define their own png_debug, png_debug1, and png_debug2. |
| 2132 | |
| 2133 | Version 1.4.0beta28 [August 5, 2008] |
| 2134 | Revised usage of PNG_LITERAL_SHARP in pngerror.c. |
| 2135 | Added PNG_STRING_NEWLINE macro |
| 2136 | |
| 2137 | Version 1.4.0beta29 [August 9, 2008] |
| 2138 | Revised usage of PNG_STRING_NEWLINE to work on non-ISO compilers. |
| 2139 | Added PNG_STRING_COPYRIGHT macro. |
| 2140 | Added non-ISO versions of png_debug macros. |
| 2141 | |
| 2142 | Version 1.4.0beta30 [August 14, 2008] |
| 2143 | Added premultiplied alpha feature (Volker Wiendl). |
| 2144 | |
| 2145 | Version 1.4.0beta31 [August 18, 2008] |
| 2146 | Moved png_set_premultiply_alpha from pngtrans.c to pngrtran.c |
| 2147 | Removed extra crc check at the end of png_handle_cHRM(). Bug introduced |
| 2148 | in libpng-1.4.0beta20. |
| 2149 | |
| 2150 | Version 1.4.0beta32 [August 19, 2008] |
| 2151 | Added PNG_WRITE_FLUSH_SUPPORTED block around new png_flush() call. |
| 2152 | Revised PNG_NO_STDIO version of png_write_flush() |
| 2153 | |
| 2154 | Version 1.4.0beta33 [August 20, 2008] |
| 2155 | Added png_get|set_chunk_cache_max() to limit the total number of sPLT, |
| 2156 | text, and unknown chunks that can be stored. |
| 2157 | |
| 2158 | Version 1.4.0beta34 [September 6, 2008] |
| 2159 | Shortened tIME_string to 29 bytes in pngtest.c |
| 2160 | Fixed off-by-one error introduced in png_push_read_zTXt() function in |
| 2161 | libpng-1.2.30beta04/pngpread.c (Harald van Dijk) |
| 2162 | |
| 2163 | Version 1.4.0beta35 [October 6, 2008] |
| 2164 | Changed "trans_values" to "trans_color". |
| 2165 | Changed so-number from 0 to 14. Some OS do not like 0. |
| 2166 | Revised makefile.darwin to fix shared library numbering. |
| 2167 | Change png_set_gray_1_2_4_to_8() to png_set_expand_gray_1_2_4_to_8() |
| 2168 | in example.c (debian bug report) |
| 2169 | |
| 2170 | Version 1.4.0beta36 [October 25, 2008] |
| 2171 | Sync with tEXt vulnerability fix in libpng-1.2.33rc02. |
| 2172 | |
| 2173 | Version 1.4.0beta37 [November 13, 2008] |
| 2174 | Added png_check_cHRM in png.c and moved checking from pngget.c, pngrutil.c, |
| 2175 | and pngwrite.c |
| 2176 | |
| 2177 | Version 1.4.0beta38 [November 22, 2008] |
| 2178 | Added check for zero-area RGB cHRM triangle in png_check_cHRM() and |
| 2179 | png_check_cHRM_fixed(). |
| 2180 | |
| 2181 | Version 1.4.0beta39 [November 23, 2008] |
| 2182 | Revised png_warning() to write its message on standard output by default |
| 2183 | when warning_fn is NULL. |
| 2184 | |
| 2185 | Version 1.4.0beta40 [November 24, 2008] |
| 2186 | Eliminated png_check_cHRM(). Instead, always use png_check_cHRM_fixed(). |
| 2187 | In png_check_cHRM_fixed(), ensure white_y is > 0, and removed redundant |
| 2188 | check for all-zero coordinates that is detected by the triangle check. |
| 2189 | |
| 2190 | Version 1.4.0beta41 [November 26, 2008] |
| 2191 | Fixed string vs pointer-to-string error in png_check_keyword(). |
| 2192 | Rearranged test expressions in png_check_cHRM_fixed() to avoid internal |
| 2193 | overflows. |
| 2194 | Added PNG_NO_CHECK_cHRM conditional. |
| 2195 | |
| 2196 | Version 1.4.0beta42, 43 [December 1, 2008] |
| 2197 | Merge png_debug with version 1.2.34beta04. |
| 2198 | |
| 2199 | Version 1.4.0beta44 [December 6, 2008] |
| 2200 | Removed redundant check for key==NULL before calling png_check_keyword() |
| 2201 | to ensure that new_key gets initialized and removed extra warning |
| 2202 | (Merge with version 1.2.34beta05 -- Arvan Pritchard). |
| 2203 | |
| 2204 | Version 1.4.0beta45 [December 9, 2008] |
| 2205 | In png_write_png(), respect the placement of the filler bytes in an earlier |
| 2206 | call to png_set_filler() (Jim Barry). |
| 2207 | |
| 2208 | Version 1.4.0beta46 [December 10, 2008] |
| 2209 | Undid previous change and added PNG_TRANSFORM_STRIP_FILLER_BEFORE and |
| 2210 | PNG_TRANSFORM_STRIP_FILLER_AFTER conditionals and deprecated |
| 2211 | PNG_TRANSFORM_STRIP_FILLER (Jim Barry). |
| 2212 | |
| 2213 | Version 1.4.0beta47 [December 15, 2008] |
| 2214 | Support for dithering was disabled by default, because it has never |
| 2215 | been well tested and doesn't work very well. The code has not |
| 2216 | been removed, however, and can be enabled by building libpng with |
| 2217 | PNG_READ_DITHER_SUPPORTED defined. |
| 2218 | |
| 2219 | Version 1.4.0beta48 [February 14, 2009] |
| 2220 | Added new exported function png_calloc(). |
| 2221 | Combined several instances of png_malloc(); png_memset() into png_calloc(). |
| 2222 | Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24 |
| 2223 | but was never defined. |
| 2224 | |
| 2225 | Version 1.4.0beta49 [February 28, 2009] |
| 2226 | Added png_fileno() macro to pngconf.h, used in pngwio.c |
| 2227 | Corrected order of #ifdef's in png_debug definition in png.h |
| 2228 | Fixed bug introduced in libpng-1.4.0beta48 with the memset arguments |
| 2229 | for pcal_params. |
| 2230 | Fixed order of #ifdef directives in the png_debug defines in png.h |
| 2231 | (bug introduced in libpng-1.2.34/1.4.0beta29). |
| 2232 | Revised comments in png_set_read_fn() and png_set_write_fn(). |
| 2233 | |
| 2234 | Version 1.4.0beta50 [March 18, 2009] |
| 2235 | Use png_calloc() instead of png_malloc() to allocate big_row_buf when |
| 2236 | reading an interlaced file, to avoid a possible UMR. |
| 2237 | Undid revision of PNG_NO_STDIO version of png_write_flush(). Users |
| 2238 | having trouble with fflush() can build with PNG_NO_WRITE_FLUSH defined |
| 2239 | or supply their own flush_fn() replacement. |
| 2240 | Revised libpng*.txt and png.h documentation about use of png_write_flush() |
| 2241 | and png_set_write_fn(). |
| 2242 | Removed fflush() from pngtest.c. |
| 2243 | Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h |
| 2244 | |
| 2245 | Version 1.4.0beta51 [March 21, 2009] |
| 2246 | Removed new png_fileno() macro from pngconf.h . |
| 2247 | |
| 2248 | Version 1.4.0beta52 [March 27, 2009] |
| 2249 | Relocated png_do_chop() ahead of building gamma tables in pngrtran.c |
| 2250 | This avoids building 16-bit gamma tables unnecessarily. |
| 2251 | Removed fflush() from pngtest.c. |
| 2252 | Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h |
| 2253 | Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt |
| 2254 | |
| 2255 | Version 1.4.0beta53 [April 1, 2009] |
| 2256 | Removed some remaining MMX macros from pngpriv.h |
| 2257 | Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles) |
| 2258 | |
| 2259 | Version 1.4.0beta54 [April 13, 2009] |
| 2260 | Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow |
| 2261 | application code writers to bypass the check for multiple inclusion |
| 2262 | of setjmp.h when they know that it is safe to ignore the situation. |
| 2263 | Eliminated internal use of setjmp() in pngread.c and pngwrite.c |
| 2264 | Reordered ancillary chunks in pngtest.png to be the same as what |
| 2265 | pngtest now produces, and made some cosmetic changes to pngtest output. |
| 2266 | Eliminated deprecated png_read_init_3() and png_write_init_3() functions. |
| 2267 | |
| 2268 | Version 1.4.0beta55 [April 15, 2009] |
| 2269 | Simplified error handling in pngread.c and pngwrite.c by putting |
| 2270 | the new png_read_cleanup() and png_write_cleanup() functions inline. |
| 2271 | |
| 2272 | Version 1.4.0beta56 [April 25, 2009] |
| 2273 | Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress |
| 2274 | "shadowed declaration" warning from gcc-4.3.3. |
| 2275 | Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration" |
| 2276 | warning about a global "gamma" variable in math.h on some platforms. |
| 2277 | |
| 2278 | Version 1.4.0beta57 [May 2, 2009] |
| 2279 | Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24 |
| 2280 | but was never defined (again). |
| 2281 | Rebuilt configure scripts with autoconf-2.63 instead of 2.62 |
| 2282 | Removed pngprefs.h and MMX from makefiles |
| 2283 | |
| 2284 | Version 1.4.0beta58 [May 14, 2009] |
| 2285 | Changed pngw32.def to pngwin.def in makefile.mingw (typo was introduced |
| 2286 | in beta57). |
| 2287 | Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri) |
| 2288 | |
| 2289 | Version 1.4.0beta59 [May 15, 2009] |
| 2290 | Reformated sources in libpng style (3-space intentation, comment format) |
| 2291 | Fixed typo in libpng docs (PNG_FILTER_AVE should be PNG_FILTER_AVG) |
| 2292 | Added sections about the git repository and our coding style to the |
| 2293 | documentation |
| 2294 | Relocated misplaced #endif in pngwrite.c, sCAL chunk handler. |
| 2295 | |
| 2296 | Version 1.4.0beta60 [May 19, 2009] |
| 2297 | Conditionally compile png_read_finish_row() which is not used by |
| 2298 | progressive readers. |
| 2299 | Added contrib/pngminim/preader to demonstrate building minimal progressive |
| 2300 | decoder, based on contrib/gregbook with embedded libpng and zlib. |
| 2301 | |
| 2302 | Version 1.4.0beta61 [May 20, 2009] |
| 2303 | In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there |
| 2304 | is only one makefile in those directories, and revised the README files |
| 2305 | accordingly. |
| 2306 | More reformatting of comments, mostly to capitalize sentences. |
| 2307 | |
| 2308 | Version 1.4.0beta62 [June 2, 2009] |
| 2309 | Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h |
| 2310 | and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h |
| 2311 | Reformatted several remaining "else statement" into two lines. |
| 2312 | Added a section to the libpng documentation about using png_get_io_ptr() |
| 2313 | in configure scripts to detect the presence of libpng. |
| 2314 | |
| 2315 | Version 1.4.0beta63 [June 15, 2009] |
| 2316 | Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR() |
| 2317 | multiple times and to specify the sample order in the tRNS chunk, |
| 2318 | because the ISO PNG specification has a typo in the tRNS table. |
| 2319 | Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to |
| 2320 | PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism |
| 2321 | available for ignoring known chunks even when not saving unknown chunks. |
| 2322 | Adopted preference for consistent use of "#ifdef" and "#ifndef" versus |
| 2323 | "#if defined()" and "if !defined()" where possible. |
| 2324 | |
| 2325 | Version 1.4.0beta64 [June 24, 2009] |
| 2326 | Eliminated PNG_LEGACY_SUPPORTED code. |
| 2327 | Moved the various unknown chunk macro definitions outside of the |
| 2328 | PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks. |
| 2329 | |
| 2330 | Version 1.4.0beta65 [June 26, 2009] |
| 2331 | Added a reference to the libpng license in each file. |
| 2332 | |
| 2333 | Version 1.4.0beta66 [June 27, 2009] |
| 2334 | Refer to the libpng license instead of the libpng license in each file. |
| 2335 | |
| 2336 | Version 1.4.0beta67 [July 6, 2009] |
| 2337 | Relocated INVERT_ALPHA within png_read_png() and png_write_png(). |
| 2338 | Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB. |
| 2339 | Added an "xcode" project to the projects directory (Alam Arias). |
| 2340 | |
| 2341 | Version 1.4.0beta68 [July 19, 2009] |
| 2342 | Avoid some tests in filter selection in pngwutil.c |
| 2343 | |
| 2344 | Version 1.4.0beta69 [July 25, 2009] |
| 2345 | Simplified the new filter-selection test. This runs faster in the |
| 2346 | common "PNG_ALL_FILTERS" and PNG_FILTER_NONE cases. |
| 2347 | Removed extraneous declaration from the new call to png_read_gray_to_rgb() |
| 2348 | (bug introduced in libpng-1.4.0beta67). |
| 2349 | Fixed up xcode project (Alam Arias) |
| 2350 | Added a prototype for png_64bit_product() in png.c |
| 2351 | |
| 2352 | Version 1.4.0beta70 [July 27, 2009] |
| 2353 | Avoid a possible NULL dereference in debug build, in png_set_text_2(). |
| 2354 | (bug introduced in libpng-0.95, discovered by Evan Rouault) |
| 2355 | |
| 2356 | Version 1.4.0beta71 [July 29, 2009] |
| 2357 | Rebuilt configure scripts with autoconf-2.64. |
| 2358 | |
| 2359 | Version 1.4.0beta72 [August 1, 2009] |
| 2360 | Replaced *.tar.lzma with *.tar.xz in distribution. Get the xz codec |
| 2361 | from <http://tukaani.org/xz>. |
| 2362 | |
| 2363 | Version 1.4.0beta73 [August 1, 2009] |
| 2364 | Reject attempt to write iCCP chunk with negative embedded profile length |
| 2365 | (JD Chen) (CVE-2009-5063). |
| 2366 | |
| 2367 | Version 1.4.0beta74 [August 8, 2009] |
| 2368 | Changed png_ptr and info_ptr member "trans" to "trans_alpha". |
| 2369 | |
| 2370 | Version 1.4.0beta75 [August 21, 2009] |
| 2371 | Removed an extra png_debug() recently added to png_write_find_filter(). |
| 2372 | Fixed incorrect #ifdef in pngset.c regarding unknown chunk support. |
| 2373 | |
| 2374 | Version 1.4.0beta76 [August 22, 2009] |
| 2375 | Moved an incorrectly located test in png_read_row() in pngread.c |
| 2376 | |
| 2377 | Version 1.4.0beta77 [August 27, 2009] |
| 2378 | Removed lpXYZ.tar.bz2 (with CRLF), KNOWNBUG, libpng-x.y.z-KNOWNBUG.txt, |
| 2379 | and the "noconfig" files from the distribution. |
| 2380 | Moved CMakeLists.txt from scripts into the main libpng directory. |
| 2381 | Various bugfixes and improvements to CMakeLists.txt (Philip Lowman) |
| 2382 | |
| 2383 | Version 1.4.0beta78 [August 31, 2009] |
| 2384 | Converted all PNG_NO_* tests to PNG_*_SUPPORTED everywhere except pngconf.h |
| 2385 | Eliminated PNG_NO_FREE_ME and PNG_FREE_ME_SUPPORTED macros. |
| 2386 | Use png_malloc plus a loop instead of png_calloc() to initialize |
| 2387 | row_pointers in png_read_png(). |
| 2388 | |
| 2389 | Version 1.4.0beta79 [September 1, 2009] |
| 2390 | Eliminated PNG_GLOBAL_ARRAYS and PNG_LOCAL_ARRAYS; always use local arrays. |
| 2391 | Eliminated PNG_CALLOC_SUPPORTED macro and always provide png_calloc(). |
| 2392 | |
| 2393 | Version 1.4.0beta80 [September 17, 2009] |
| 2394 | Removed scripts/libpng.icc |
| 2395 | Changed typecast of filler from png_byte to png_uint_16 in png_set_filler(). |
| 2396 | (Dennis Gustafsson) |
| 2397 | Fixed typo introduced in beta78 in pngtest.c ("#if def " should be "#ifdef ") |
| 2398 | |
| 2399 | Version 1.4.0beta81 [September 23, 2009] |
| 2400 | Eliminated unused PNG_FLAG_FREE_* defines from pngpriv.h |
| 2401 | Expanded TAB characters in pngrtran.c |
| 2402 | Removed PNG_CONST from all "PNG_CONST PNG_CHNK" declarations to avoid |
| 2403 | compiler complaints about doubly declaring things "const". |
| 2404 | Changed all "#if [!]defined(X)" to "if[n]def X" where possible. |
| 2405 | Eliminated unused png_ptr->row_buf_size |
| 2406 | |
| 2407 | Version 1.4.0beta82 [September 25, 2009] |
| 2408 | Moved redundant IHDR checking into new png_check_IHDR() in png.c |
| 2409 | and report all errors found in the IHDR data. |
| 2410 | Eliminated useless call to png_check_cHRM() from pngset.c |
| 2411 | |
| 2412 | Version 1.4.0beta83 [September 25, 2009] |
| 2413 | Revised png_check_IHDR() to eliminate bogus complaint about filter_type. |
| 2414 | |
| 2415 | Version 1.4.0beta84 [September 30, 2009] |
| 2416 | Fixed some inconsistent indentation in pngconf.h |
| 2417 | Revised png_check_IHDR() to add a test for width variable less than 32-bit. |
| 2418 | |
| 2419 | Version 1.4.0beta85 [October 1, 2009] |
| 2420 | Revised png_check_IHDR() again, to check info_ptr members instead of |
| 2421 | the contents of the returned parameters. |
| 2422 | |
| 2423 | Version 1.4.0beta86 [October 9, 2009] |
| 2424 | Updated the "xcode" project (Alam Arias). |
| 2425 | Eliminated a shadowed declaration of "pp" in png_handle_sPLT(). |
| 2426 | |
| 2427 | Version 1.4.0rc01 [October 19, 2009] |
| 2428 | Trivial cosmetic changes. |
| 2429 | |
| 2430 | Version 1.4.0beta87 [October 30, 2009] |
| 2431 | Moved version 1.4.0 back into beta. |
| 2432 | |
| 2433 | Version 1.4.0beta88 [October 30, 2009] |
| 2434 | Revised libpng*.txt section about differences between 1.2.x and 1.4.0 |
| 2435 | because most of the new features have now been ported back to 1.2.41 |
| 2436 | |
| 2437 | Version 1.4.0beta89 [November 1, 2009] |
| 2438 | More bugfixes and improvements to CMakeLists.txt (Philip Lowman) |
| 2439 | Removed a harmless extra png_set_invert_alpha() from pngwrite.c |
| 2440 | Apply png_user_chunk_cache_max within png_decompress_chunk(). |
| 2441 | Merged libpng-1.2.41.txt with libpng-1.4.0.txt where appropriate. |
| 2442 | |
| 2443 | Version 1.4.0beta90 [November 2, 2009] |
| 2444 | Removed all remaining WIN32_WCE #ifdefs except those involving the |
| 2445 | time.h "tm" structure |
| 2446 | |
| 2447 | Version 1.4.0beta91 [November 3, 2009] |
| 2448 | Updated scripts/pngw32.def and projects/wince/png32ce.def |
| 2449 | Copied projects/wince/png32ce.def to the scripts directory. |
| 2450 | Added scripts/makefile.wce |
| 2451 | Patched ltmain.sh for wince support. |
| 2452 | Added PNG_CONVERT_tIME_SUPPORTED macro. |
| 2453 | |
| 2454 | Version 1.4.0beta92 [November 4, 2009] |
| 2455 | Make inclusion of time.h in pngconf.h depend on PNG_CONVERT_tIME_SUPPORTED |
| 2456 | Make #define PNG_CONVERT_tIME_SUPPORTED depend on PNG_WRITE_tIME_SUPPORTED |
| 2457 | Revised libpng*.txt to describe differences from 1.2.40 to 1.4.0 (instead |
| 2458 | of differences from 1.2.41 to 1.4.0) |
| 2459 | |
| 2460 | Version 1.4.0beta93 [November 7, 2009] |
| 2461 | Added PNG_DEPSTRUCT, PNG_DEPRECATED, PNG_USE_RESULT, PNG_NORETURN, and |
| 2462 | PNG_ALLOCATED macros to detect deprecated direct access to the |
| 2463 | png_struct or info_struct members and other deprecated usage in |
| 2464 | applications (John Bowler). |
| 2465 | Updated scripts/makefile* to add "-DPNG_CONFIGURE_LIBPNG" to CFLAGS, |
| 2466 | to prevent warnings about direct access to png structs by libpng |
| 2467 | functions while building libpng. They need to be tested, especially |
| 2468 | those using compilers other than gcc. |
| 2469 | Updated projects/visualc6 and visualc71 with "/d PNG_CONFIGURE_LIBPNG". |
| 2470 | They should work but still need to be updated to remove |
| 2471 | references to pnggccrd.c or pngvcrd.c and ASM building. |
| 2472 | Added README.txt to the beos, cbuilder5, netware, and xcode projects warning |
| 2473 | that they need to be updated, to remove references to pnggccrd.c and |
| 2474 | pngvcrd.c and to depend on pngpriv.h |
| 2475 | Removed three direct references to read_info_ptr members in pngtest.c |
| 2476 | that were detected by the new PNG_DEPSTRUCT macro. |
| 2477 | Moved the png_debug macro definitions and the png_read_destroy(), |
| 2478 | png_write_destroy() and png_far_to_near() prototypes from png.h |
| 2479 | to pngpriv.h (John Bowler) |
| 2480 | Moved the synopsis lines for png_read_destroy(), png_write_destroy() |
| 2481 | png_debug(), png_debug1(), and png_debug2() from libpng.3 to libpngpf.3. |
| 2482 | |
| 2483 | Version 1.4.0beta94 [November 9, 2009] |
| 2484 | Removed the obsolete, unused pnggccrd.c and pngvcrd.c files. |
| 2485 | Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions. |
| 2486 | Removed dependency of pngtest.o on pngpriv.h in the makefiles. |
| 2487 | Only #define PNG_DEPSTRUCT, etc. in pngconf.h if not already defined. |
| 2488 | |
| 2489 | Version 1.4.0beta95 [November 10, 2009] |
| 2490 | Changed png_check_sig() to !png_sig_cmp() in contrib programs. |
| 2491 | Added -DPNG_CONFIGURE_LIBPNG to contrib/pngminm/*/makefile |
| 2492 | Changed png_check_sig() to !png_sig_cmp() in contrib programs. |
| 2493 | Corrected the png_get_IHDR() call in contrib/gregbook/readpng2.c |
| 2494 | Changed pngminim/*/gather.sh to stop trying to remove pnggccrd.c and pngvcrd.c |
| 2495 | Added dependency on pngpriv.h in contrib/pngminim/*/makefile |
| 2496 | |
| 2497 | Version 1.4.0beta96 [November 12, 2009] |
| 2498 | Renamed scripts/makefile.wce to scripts/makefile.cegcc |
| 2499 | Revised Makefile.am to use libpng.sys while building libpng.so |
| 2500 | so that only PNG_EXPORT functions are exported. |
| 2501 | Removed the deprecated png_check_sig() function/macro. |
| 2502 | Removed recently removed function names from scripts/*.def |
| 2503 | Revised pngtest.png to put chunks in the same order written by pngtest |
| 2504 | (evidently the same change made in libpng-1.0beta54 was lost). |
| 2505 | Added PNG_PRIVATE macro definition in pngconf.h for possible future use. |
| 2506 | |
| 2507 | Version 1.4.0beta97 [November 13, 2009] |
| 2508 | Restored pngtest.png to the libpng-1.4.0beta7 version. |
| 2509 | Removed projects/beos and netware.txt; no one seems to be supporting them. |
| 2510 | Revised Makefile.in |
| 2511 | |
| 2512 | Version 1.4.0beta98 [November 13, 2009] |
| 2513 | Added the "xcode" project to zip distributions, |
| 2514 | Fixed a typo in scripts/pngwin.def introduced in beta97. |
| 2515 | |
| 2516 | Version 1.4.0beta99 [November 14, 2009] |
| 2517 | Moved libpng-config.in and libpng.pc-configure.in out of the scripts |
| 2518 | directory, to libpng-config.in and libpng-pc.in, respectively, and |
| 2519 | modified Makefile.am and configure.ac accordingly. Now "configure" |
| 2520 | needs nothing from the "scripts" directory. |
| 2521 | Avoid redefining PNG_CONST in pngconf.h |
| 2522 | |
| 2523 | Version 1.4.0beta100 [November 14, 2009] |
| 2524 | Removed ASM builds from projects/visualc6 and projects/visualc71 |
| 2525 | Removed scripts/makefile.nommx and makefile.vcawin32 |
| 2526 | Revised CMakeLists.txt to account for new location of libpng-config.in |
| 2527 | and libpng-pc.in |
| 2528 | Updated INSTALL to reflect removal and relocation of files. |
| 2529 | |
| 2530 | Version 1.4.0beta101 [November 14, 2009] |
| 2531 | Restored the binary files (*.jpg, *.png, some project files) that were |
| 2532 | accidentally deleted from the zip and 7z distributions when the xcode |
| 2533 | project was added. |
| 2534 | |
| 2535 | Version 1.4.0beta102 [November 18, 2009] |
| 2536 | Added libpng-config.in and libpng-pc.in to the zip and 7z distributions. |
| 2537 | Fixed a typo in projects/visualc6/pngtest.dsp, introduced in beta100. |
| 2538 | Moved descriptions of makefiles and other scripts out of INSTALL into |
| 2539 | scripts/README.txt |
| 2540 | Updated the copyright year in scripts/pngwin.rc from 2006 to 2009. |
| 2541 | |
| 2542 | Version 1.4.0beta103 [November 21, 2009] |
| 2543 | Removed obsolete comments about ASM from projects/visualc71/README_zlib.txt |
| 2544 | Align row_buf on 16-byte boundary in memory. |
| 2545 | Restored the PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED guard around the call |
| 2546 | to png_flush() after png_write_IEND(). See 1.4.0beta32, 1.4.0beta50 |
| 2547 | changes above and 1.2.30, 1.2.30rc01 and rc03 in 1.2.41 CHANGES. Someone |
| 2548 | needs this feature. |
| 2549 | Make the 'png_jmpbuf' macro expand to a call that records the correct |
| 2550 | longjmp function as well as returning a pointer to the setjmp |
| 2551 | jmp_buf buffer, and marked direct access to jmpbuf 'deprecated'. |
| 2552 | (John Bowler) |
| 2553 | |
| 2554 | Version 1.4.0beta104 [November 22, 2009] |
| 2555 | Removed png_longjmp_ptr from scripts/*.def and libpng.3 |
| 2556 | Rebuilt configure scripts with autoconf-2.65 |
| 2557 | |
| 2558 | Version 1.4.0beta105 [November 25, 2009] |
| 2559 | Use fast integer PNG_DIVIDE_BY_255() or PNG_DIVIDE_BY_65535() |
| 2560 | to accomplish alpha premultiplication when |
| 2561 | PNG_READ_COMPOSITE_NODIV_SUPPORTED is defined. |
| 2562 | Changed "/255" to "/255.0" in background calculations to make it clear |
| 2563 | that the 255 is used as a double. |
| 2564 | |
| 2565 | Version 1.4.0beta106 [November 27, 2009] |
| 2566 | Removed premultiplied alpha feature. |
| 2567 | |
| 2568 | Version 1.4.0beta107 [December 4, 2009] |
| 2569 | Updated README |
| 2570 | Added "#define PNG_NO_PEDANTIC_WARNINGS" in the libpng source files. |
| 2571 | Removed "-DPNG_CONFIGURE_LIBPNG" from the makefiles and projects. |
| 2572 | Revised scripts/makefile.netbsd, makefile.openbsd, and makefile.sco |
| 2573 | to put png.h and pngconf.h in $prefix/include, like the other scripts, |
| 2574 | instead of in $prefix/include/libpng. Also revised makefile.sco |
| 2575 | to put them in $prefix/include/libpng15 instead of in |
| 2576 | $prefix/include/libpng/libpng15. |
| 2577 | |
| 2578 | Version 1.4.0beta108 [December 11, 2009] |
| 2579 | Removed leftover "-DPNG_CONFIGURE_LIBPNG" from contrib/pngminim/*/makefile |
| 2580 | Relocated png_do_chop() to its original position in pngrtran.c; the |
| 2581 | change in version 1.2.41beta08 caused transparency to be handled wrong |
| 2582 | in some 16-bit datastreams (Yusaku Sugai). |
| 2583 | |
| 2584 | Version 1.4.0beta109 [December 13, 2009] |
| 2585 | Added "bit_depth" parameter to the private png_build_gamma_table() function. |
| 2586 | Pass bit_depth=8 to png_build_gamma_table() when bit_depth is 16 but the |
| 2587 | PNG_16_TO_8 transform has been set, to avoid unnecessary build of 16-bit |
| 2588 | tables. |
| 2589 | |
| 2590 | Version 1.4.0rc02 [December 20, 2009] |
| 2591 | Declared png_cleanup_needed "volatile" in pngread.c and pngwrite.c |
| 2592 | |
| 2593 | Version 1.4.0rc03 [December 22, 2009] |
| 2594 | Renamed libpng-pc.in back to libpng.pc.in and revised CMakeLists.txt |
| 2595 | (revising the change in 1.4.0beta99) |
| 2596 | |
| 2597 | Version 1.4.0rc04 [December 25, 2009] |
| 2598 | Swapped PNG_UNKNOWN_CHUNKS_SUPPORTED and PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| 2599 | in pngset.c to be consistent with other changes in version 1.2.38. |
| 2600 | |
| 2601 | Version 1.4.0rc05 [December 25, 2009] |
| 2602 | Changed "libpng-pc.in" to "libpng.pc.in" in configure.ac, configure, and |
| 2603 | Makefile.in to be consistent with changes in libpng-1.4.0rc03 |
| 2604 | |
| 2605 | Version 1.4.0rc06 [December 29, 2009] |
| 2606 | Reverted the gamma_table changes from libpng-1.4.0beta109. |
| 2607 | Fixed some indentation errors. |
| 2608 | |
| 2609 | Version 1.4.0rc07 [January 1, 2010] |
| 2610 | Revised libpng*.txt and libpng.3 about 1.2.x->1.4.x differences. |
| 2611 | Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c |
| 2612 | Update copyright year to 2010. |
| 2613 | |
| 2614 | Version 1.4.0rc08 [January 2, 2010] |
| 2615 | Avoid deprecated references to png_ptr-io_ptr and png_ptr->error_ptr |
| 2616 | in pngtest.c |
| 2617 | |
| 2618 | Version 1.4.0 [January 3, 2010] |
| 2619 | No changes. |
| 2620 | |
| 2621 | Version 1.4.1beta01 [January 8, 2010] |
| 2622 | Updated CMakeLists.txt for consistent indentation and to avoid an |
| 2623 | unclosed if-statement warning (Philip Lowman). |
| 2624 | Revised Makefile.am and Makefile.in to remove references to Y2KINFO, |
| 2625 | KNOWNBUG, and libpng.la (Robert Schwebel). |
| 2626 | Revised the makefiles to install the same files and symbolic |
| 2627 | links as configure, except for libpng.la and libpng14.la. |
| 2628 | Make png_set|get_compression_buffer_size() available even when |
| 2629 | PNG_WRITE_SUPPORTED is not enabled. |
| 2630 | Revised Makefile.am and Makefile.in to simplify their maintenance. |
| 2631 | Revised scripts/makefile.linux to install a link to libpng14.so.14.1 |
| 2632 | |
| 2633 | Version 1.4.1beta02 [January 9, 2010] |
| 2634 | Revised the rest of the makefiles to install a link to libpng14.so.14.1 |
| 2635 | |
| 2636 | Version 1.4.1beta03 [January 10, 2010] |
| 2637 | Removed png_set_premultiply_alpha() from scripts/*.def |
| 2638 | |
| 2639 | Version 1.4.1rc01 [January 16, 2010] |
| 2640 | No changes. |
| 2641 | |
| 2642 | Version 1.4.1beta04 [January 23, 2010] |
| 2643 | Revised png_decompress_chunk() to improve speed and memory usage when |
| 2644 | decoding large chunks. |
| 2645 | Added png_set|get_chunk_malloc_max() functions. |
| 2646 | |
| 2647 | Version 1.4.1beta05 [January 26, 2010] |
| 2648 | Relocated "int k" declaration in pngtest.c to minimize its scope. |
| 2649 | |
| 2650 | Version 1.4.1beta06 [January 28, 2010] |
| 2651 | Revised png_decompress_chunk() to use a two-pass method suggested by |
| 2652 | John Bowler. |
| 2653 | |
| 2654 | Version 1.4.1beta07 [February 6, 2010] |
| 2655 | Folded some long lines in the source files. |
| 2656 | Added defineable PNG_USER_CHUNK_CACHE_MAX, PNG_USER_CHUNK_MALLOC_MAX, |
| 2657 | and a PNG_USER_LIMITS_SUPPORTED flag. |
| 2658 | Eliminated use of png_ptr->irowbytes and reused the slot in png_ptr as |
| 2659 | png_ptr->png_user_chunk_malloc_max. |
| 2660 | Revised png_push_save_buffer() to do fewer but larger png_malloc() calls. |
| 2661 | |
| 2662 | Version 1.4.1beta08 [February 6, 2010] |
| 2663 | Minor cleanup and updating of dates and copyright year. |
| 2664 | |
| 2665 | Version 1.5.0beta01 [February 7, 2010] |
| 2666 | Moved declaration of png_struct into private pngstruct.h and png_info |
| 2667 | into pnginfo.h |
| 2668 | |
| 2669 | Version 1.4.1beta09 and 1.5.0beta02 [February 7, 2010] |
| 2670 | Reverted to original png_push_save_buffer() code. |
| 2671 | |
| 2672 | Version 1.4.1beta10 and 1.5.0beta03 [February 8, 2010] |
| 2673 | Return allocated "old_buffer" in png_push_save_buffer() before |
| 2674 | calling png_error(), to avoid a potential memory leak. |
| 2675 | Updated configure script to use SO number 15. |
| 2676 | |
| 2677 | Version 1.5.0beta04 [February 9, 2010] |
| 2678 | Removed malformed "incomplete struct declaration" of png_info from png.h |
| 2679 | |
| 2680 | Version 1.5.0beta05 [February 12, 2010] |
| 2681 | Removed PNG_DEPSTRUCT markup in pngstruct.h and pnginfo.h, and undid the |
| 2682 | linewrapping that it entailed. |
| 2683 | Revised comments in pngstruct.h and pnginfo.h and added pointers to |
| 2684 | the libpng license. |
| 2685 | Changed PNG_INTERNAL to PNG_EXPOSE_INTERNAL_STRUCTURES |
| 2686 | Removed the cbuilder5 project, which has not been updated to 1.4.0. |
| 2687 | |
| 2688 | Version 1.4.1beta12 and 1.5.0beta06 [February 14, 2010] |
| 2689 | Fixed type declaration of png_get_chunk_malloc_max() in pngget.c (Daisuke |
| 2690 | Nishikawa) |
| 2691 | |
| 2692 | Version 1.5.0beta07 [omitted] |
| 2693 | |
| 2694 | Version 1.5.0beta08 [February 19, 2010] |
| 2695 | Changed #ifdef PNG_NO_STDIO_SUPPORTED to #ifdef PNG_NO_CONSOLE_IO_SUPPORTED |
| 2696 | wherever png_snprintf() is used to construct error and warning messages. |
| 2697 | Noted in scripts/makefile.mingw that it expects to be run under MSYS. |
| 2698 | Removed obsolete unused MMX-querying support from contrib/gregbook |
| 2699 | Added exported png_longjmp() function. |
| 2700 | Removed the AIX redefinition of jmpbuf in png.h |
| 2701 | Added -D_ALLSOURCE in configure.ac, makefile.aix, and CMakeLists.txt |
| 2702 | when building on AIX. |
| 2703 | |
| 2704 | Version 1.5.0beta09 [February 19, 2010] |
| 2705 | Removed -D_ALLSOURCE from configure.ac, makefile.aix, and CMakeLists.txt. |
| 2706 | Changed the name of png_ptr->jmpbuf to png_ptr->png_jmpbuf in pngstruct.h |
| 2707 | |
| 2708 | Version 1.5.0beta10 [February 25, 2010] |
| 2709 | Removed unused gzio.c from contrib/pngminim gather and makefile scripts |
| 2710 | Removed replacement error handlers from contrib/gregbook. Because of |
| 2711 | the new png_longjmp() function they are no longer needed. |
| 2712 | |
| 2713 | Version 1.5.0beta11 [March 6, 2010] |
| 2714 | Removed checking for already-included setjmp.h from pngconf.h |
| 2715 | Fixed inconsistent indentations and made numerous cosmetic changes. |
| 2716 | Revised the "SEE ALSO" style of libpng.3, libpngpf.3, and png.5 |
| 2717 | |
| 2718 | Version 1.5.0beta12 [March 9, 2010] |
| 2719 | Moved "#include png.h" inside pngpriv.h and removed "#include png.h" from |
| 2720 | the source files, along with "#define PNG_EXPOSE_INTERNAL_STRUCTURES" |
| 2721 | and "#define PNG_NO_PEDANTIC_WARNINGS" (John Bowler). |
| 2722 | Created new pngdebug.h and moved debug definitions there. |
| 2723 | |
| 2724 | Version 1.5.0beta13 [March 10, 2010] |
| 2725 | Protect pngstruct.h, pnginfo.h, and pngdebug.h from being included twice. |
| 2726 | Revise the "#ifdef" blocks in png_inflate() so it will compile when neither |
| 2727 | PNG_USER_CHUNK_MALLOC_MAX nor PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED |
| 2728 | is defined. |
| 2729 | Removed unused png_measure_compressed_chunk() from pngpriv.h and libpngpf.3 |
| 2730 | Moved the 'config.h' support from pngconf.h to pngpriv.h |
| 2731 | Removed PNGAPI from the png_longjmp_ptr typedef. |
| 2732 | Eliminated dependence of pngtest.c on the private pngdebug.h file. |
| 2733 | Make all png_debug macros into *unterminated* statements or |
| 2734 | expressions (i.e. a trailing ';' must always be added) and correct |
| 2735 | the format statements in various png_debug messages. |
| 2736 | |
| 2737 | Version 1.5.0beta14 [March 14, 2010] |
| 2738 | Removed direct access to png_ptr->io_ptr from the Windows code in pngtest.c |
| 2739 | Revised Makefile.am to account for recent additions and replacements. |
| 2740 | Corrected CE and OS/2 DEF files (scripts/png*def) for symbols removed and |
| 2741 | added ordinal numbers to the Windows DEF file and corrected the duplicated |
| 2742 | ordinal numbers on CE symbols that are commented out. |
| 2743 | Added back in export symbols that can be present in the Windows build but |
| 2744 | are disabled by default. |
| 2745 | PNG_EXPORT changed to include an 'ordinal' field for DEF file generation. |
| 2746 | PNG_CALLBACK added to make callback definitions uniform. PNGAPI split |
| 2747 | into PNGCAPI (base C form), PNGAPI (exports) and PNGCBAPI (callbacks), |
| 2748 | and appropriate changes made to all files. Cygwin builds re-hinged to |
| 2749 | allow procedure call standard changes and to remove the need for the DEF |
| 2750 | file (fixes build on Cygwin). |
| 2751 | Enabled 'attribute' warnings that are relevant to library APIs and callbacks. |
| 2752 | Changed rules for generation of the various symbol files and added a new |
| 2753 | rule for a DEF file (which is also added to the distribution). |
| 2754 | Updated the symbol file generation to stop it adding spurious spaces |
| 2755 | to EOL (coming from preprocessor macro expansion). Added a facility |
| 2756 | to join tokens in the output and rewrite *.dfn to use this. |
| 2757 | Eliminated scripts/*.def in favor of libpng.def; updated projects/visualc71 |
| 2758 | and removed scripts/makefile.cygwin. |
| 2759 | Made PNG_BUILD_DLL safe: it can be set whenever a DLL is being built. |
| 2760 | Removed the include of sys/types.h - apparently unnecessary now on the |
| 2761 | platforms on which it happened (all but Mac OS and RISC OS). |
| 2762 | Moved the Mac OS test into pngpriv.h (the only place it is used.) |
| 2763 | |
| 2764 | Version 1.5.0beta15 [March 17, 2010] |
| 2765 | Added symbols.chk target to Makefile.am to validate the symbols in png.h |
| 2766 | against the new DEF file scripts/symbols.def. |
| 2767 | Changed the default DEF file back to pngwin.def. |
| 2768 | Removed makefile.mingw. |
| 2769 | Eliminated PNG_NO_EXTERN and PNG_ALL_EXTERN |
| 2770 | |
| 2771 | Version 1.5.0beta16 [April 1, 2010] |
| 2772 | Make png_text_struct independent of PNG_iTXt_SUPPORTED, so that |
| 2773 | fields are initialized in all configurations. The READ/WRITE |
| 2774 | macros (PNG_(READ|WRITE)_iTXt_SUPPORTED) still function as |
| 2775 | before to disable code to actually read or write iTXt chunks |
| 2776 | and iTXt_SUPPORTED can be used to detect presence of either |
| 2777 | read or write support (but it is probably better to check for |
| 2778 | the one actually required - read or write.) |
| 2779 | Combined multiple png_warning() calls for a single error. |
| 2780 | Restored the macro definition of png_check_sig(). |
| 2781 | |
| 2782 | Version 1.5.0beta17 [April 17, 2010] |
| 2783 | Added some "(long)" typecasts to printf calls in png_handle_cHRM(). |
| 2784 | Documented the fact that png_set_dither() was disabled since libpng-1.4.0. |
| 2785 | Reenabled png_set_dither() but renamed it to png_set_quantize() to reflect |
| 2786 | more accurately what it actually does. At the same time, renamed |
| 2787 | the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros to |
| 2788 | PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS. |
| 2789 | Added some "(long)" typecasts to printf calls in png_handle_cHRM(). |
| 2790 | Freeze build-time only configuration in the build. |
| 2791 | In all prior versions of libpng most configuration options |
| 2792 | controlled by compiler #defines had to be repeated by the |
| 2793 | application code that used libpng. This patch changes this |
| 2794 | so that compilation options that can only be changed at build |
| 2795 | time are frozen in the build. Options that are compiler |
| 2796 | dependent (and those that are system dependent) are evaluated |
| 2797 | each time - pngconf.h holds these. Options that can be changed |
| 2798 | per-file in the application are in png.h. Frozen options are |
| 2799 | in the new installed header file pnglibconf.h (John Bowler) |
| 2800 | Removed the xcode project because it has not been updated to work |
| 2801 | with libpng-1.5.0. |
| 2802 | Removed the ability to include optional pngusr.h |
| 2803 | |
| 2804 | Version 1.5.0beta18 [April 17, 2010] |
| 2805 | Restored the ability to include optional pngusr.h |
| 2806 | Moved replacements for png_error() and png_warning() from the |
| 2807 | contrib/pngminim project to pngerror.c, for use when warnings or |
| 2808 | errors are disabled via PNG_NO_WARN or PNG_NO_ERROR_TEXT, to avoid |
| 2809 | storing unneeded error/warning text. |
| 2810 | Updated contrib/pngminim project to work with the new pnglibconf.h |
| 2811 | Added some PNG_NO_* defines to contrib/pngminim/*/pngusr.h to save space. |
| 2812 | |
| 2813 | Version 1.5.0beta19 [April 24, 2010] |
| 2814 | Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the functions |
| 2815 | to read and write ints to be disabled independently of PNG_USE_READ_MACROS, |
| 2816 | which allows libpng to be built with the functions even though the default |
| 2817 | is to use the macros - this allows applications to choose at app build |
| 2818 | time whether or not to use macros (previously impossible because the |
| 2819 | functions weren't in the default build.) |
| 2820 | Changed Windows calling convention back to __cdecl for API functions. |
| 2821 | For Windows/x86 platforms only: |
| 2822 | __stdcall is no longer needed for Visual Basic, so libpng-1.5.0 uses |
| 2823 | __cdecl throughout (both API functions and callbacks) on Windows/x86 |
| 2824 | platforms. |
| 2825 | Replaced visualc6 and visualc71 projects with new vstudio project |
| 2826 | Relaxed the overly-restrictive permissions of some files. |
| 2827 | |
| 2828 | Version 1.5.0beta20 [April 24, 2010] |
| 2829 | Relaxed more overly-restrictive permissions of some files. |
| 2830 | |
| 2831 | Version 1.5.0beta21 [April 27, 2010] |
| 2832 | Removed some unwanted binary bytes and changed CRLF to NEWLINE in the new |
| 2833 | vstudio project files, and some trivial editing of some files in the |
| 2834 | scripts directory. |
| 2835 | Set PNG_NO_READ_BGR, PNG_NO_IO_STATE, and PNG_NO_TIME_RFC1123 in |
| 2836 | contrib/pngminim/decoder/pngusr.h to make a smaller decoder application. |
| 2837 | |
| 2838 | Version 1.5.0beta22 [April 28, 2010] |
| 2839 | Fixed dependencies of GET_INT_32 - it does not require READ_INT_FUNCTIONS |
| 2840 | because it has a macro equivalent. |
| 2841 | Improved the options.awk script; added an "everything off" option. |
| 2842 | Revised contrib/pngminim to use the "everything off" option in pngusr.dfa. |
| 2843 | |
| 2844 | Version 1.5.0beta23 [April 29, 2010] |
| 2845 | Corrected PNG_REMOVED macro to take five arguments. |
| 2846 | The macro was documented with two arguments (name,ordinal), however |
| 2847 | the symbol checking .dfn files assumed five arguments. The five |
| 2848 | argument form seems more useful so it is changed to that. |
| 2849 | Corrected PNG_UNKNOWN_CHUNKS_SUPPORTED to PNG_HANDLE_AS_UNKNOWN_SUPPORTED |
| 2850 | in gregbook/readpng2.c |
| 2851 | Corrected protection of png_get_user_transform_ptr. The API declaration in |
| 2852 | png.h is removed if both READ and WRITE USER_TRANSFORM are turned off |
| 2853 | but was left defined in pngtrans.c |
| 2854 | Added logunsupported=1 to cause pnglibconf.h to document disabled options. |
| 2855 | This makes the installed pnglibconf.h more readable but causes no |
| 2856 | other change. The intention is that users of libpng will find it |
| 2857 | easier to understand if an API they need is missing. |
| 2858 | Include png_reset_zstream() in png.c only when PNG_READ_SUPPORTED is defined. |
| 2859 | Removed dummy_inflate.c from contrib/pngminim/encoder |
| 2860 | Removed contrib/pngminim/*/gather.sh; gathering is now done in the makefile. |
| 2861 | |
| 2862 | Version 1.5.0beta24 [May 7, 2010] |
| 2863 | Use bitwise "&" instead of arithmetic mod in pngrutil.c calculation of the |
| 2864 | offset of the png_ptr->rowbuf pointer into png_ptr->big_row_buf. |
| 2865 | Added more blank lines for readability. |
| 2866 | |
| 2867 | Version 1.5.0beta25 [June 18, 2010] |
| 2868 | In pngpread.c: png_push_have_row() add check for new_row > height |
| 2869 | Removed the now-redundant check for out-of-bounds new_row from example.c |
| 2870 | |
| 2871 | Version 1.5.0beta26 [June 18, 2010] |
| 2872 | In pngpread.c: png_push_process_row() add check for too many rows. |
| 2873 | |
| 2874 | Version 1.5.0beta27 [June 18, 2010] |
| 2875 | Removed the check added in beta25 as it is now redundant. |
| 2876 | |
| 2877 | Version 1.5.0beta28 [June 20, 2010] |
| 2878 | Rewrote png_process_IDAT_data to consistently treat extra data as warnings |
| 2879 | and handle end conditions more cleanly. |
| 2880 | Removed the new (beta26) check in png_push_process_row(). |
| 2881 | |
| 2882 | Version 1.5.0beta29 [June 21, 2010] |
| 2883 | Revised scripts/options.awk to work on Sunos (but still doesn't work) |
| 2884 | Added comment to options.awk and contrib/pngminim/*/makefile to try nawk. |
| 2885 | |
| 2886 | Version 1.5.0beta30 [June 22, 2010] |
| 2887 | Stop memory leak when reading a malformed sCAL chunk. |
| 2888 | |
| 2889 | Version 1.5.0beta31 [June 26, 2010] |
| 2890 | Revised pngpread.c patch of beta28 to avoid an endless loop. |
| 2891 | Removed some trailing blanks. |
| 2892 | |
| 2893 | Version 1.5.0beta32 [June 26, 2010] |
| 2894 | Removed leftover scripts/options.patch and scripts/options.rej |
| 2895 | |
| 2896 | Version 1.5.0beta33 [July 6, 3010] |
| 2897 | Made FIXED and FLOATING options consistent in the APIs they enable and |
| 2898 | disable. Corrected scripts/options.awk to handle both command line |
| 2899 | options and options specified in the .dfa files. |
| 2900 | Changed char *msg to PNG_CONST char *msg in pngrutil.c |
| 2901 | Make png_set_sRGB_gAMA_and_cHRM set values using either the fixed or |
| 2902 | floating point APIs, but not both. |
| 2903 | Reversed patch to remove error handler when the jmp_buf is stored in the |
| 2904 | main program structure, not the png_struct. |
| 2905 | The error handler is needed because the default handler in libpng will |
| 2906 | always use the jmp_buf in the library control structure; this is never |
| 2907 | set. The gregbook code is a useful example because, even though it |
| 2908 | uses setjmp/longjmp, it shows how error handling can be implemented |
| 2909 | using control mechanisms not directly supported by libpng. The |
| 2910 | technique will work correctly with mechanisms such as Microsoft |
| 2911 | Structure Exceptions or C++ exceptions (compiler willing - note that gcc |
| 2912 | does not by default support interworking of C and C++ error handling.) |
| 2913 | Reverted changes to call png_longjmp in contrib/gregbook where it is not |
| 2914 | appropriate. If mainprog->jmpbuf is used by setjmp, then png_longjmp |
| 2915 | cannot be used. |
| 2916 | Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans) |
| 2917 | Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {') |
| 2918 | |
| 2919 | Version 1.5.0beta34 [July 12, 2010] |
| 2920 | Put #ifndef PNG_EXTERN, #endif around the define PNG_EXTERN in pngpriv.h |
| 2921 | |
| 2922 | Version 1.5.0beta35 [July 24, 2010] |
| 2923 | Removed some newly-added TAB characters. |
| 2924 | Added -DNO_PNG_SNPRINTF to CFLAGS in scripts/makefile.dj2 |
| 2925 | Moved the definition of png_snprintf() outside of the enclosing |
| 2926 | #ifdef blocks in pngconf.h |
| 2927 | |
| 2928 | Version 1.5.0beta36 [July 29, 2010] |
| 2929 | Patches by John Bowler: |
| 2930 | Fixed point APIs are now supported throughout (no missing APIs). |
| 2931 | Internal fixed point arithmetic support exists for all internal floating |
| 2932 | point operations. |
| 2933 | sCAL validates the floating point strings it is passed. |
| 2934 | Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2 |
| 2935 | Two new APIs exist to get the number of passes without turning on the |
| 2936 | PNG_INTERLACE transform and to get the number of rows in the current |
| 2937 | pass. |
| 2938 | A new test program, pngvalid.c, validates the gamma code. |
| 2939 | Errors in the 16-bit gamma correction (overflows) have been corrected. |
| 2940 | cHRM chunk testing is done consistently (previously the floating point |
| 2941 | API bypassed it, because the test really didn't work on FP, now the test |
| 2942 | is performed on the actual values to be stored in the PNG file so it |
| 2943 | works in the FP case too.) |
| 2944 | Most floating point APIs now simply call the fixed point APIs after |
| 2945 | converting the values to the fixed point form used in the PNG file. |
| 2946 | The standard headers no longer include zlib.h, which is currently only |
| 2947 | required for pngstruct.h and can therefore be internal. |
| 2948 | Revised png_get_int_32 to undo the PNG two's complement representation of |
| 2949 | negative numbers. |
| 2950 | |
| 2951 | Version 1.5.0beta37 [July 30, 2010] |
| 2952 | Added a typecast in png_get_int_32() in png.h and pngrutil.h to avoid |
| 2953 | a compiler warning. |
| 2954 | Replaced oFFs 0,0 with oFFs -10,20 in pngtest.png |
| 2955 | |
| 2956 | Version 1.5.0beta38 [July 31, 2010] |
| 2957 | Implemented remaining "_fixed" functions. |
| 2958 | Corrected a number of recently introduced warnings mostly resulting from |
| 2959 | safe but uncast assignments to shorter integers. Also added a zlib |
| 2960 | VStudio release library project because the latest zlib Official Windows |
| 2961 | build does not include such a thing. |
| 2962 | Revised png_get_int_16() to be similar to png_get_int_32(). |
| 2963 | Restored projects/visualc71. |
| 2964 | |
| 2965 | Version 1.5.0beta39 [August 2, 2010] |
| 2966 | VisualC/GCC warning fixes, VisualC build fixes |
| 2967 | The changes include support for function attributes in VC in addition to |
| 2968 | those already present in GCC - necessary because without these some |
| 2969 | warnings are unavoidable. Fixes include signed/unsigned fixes in |
| 2970 | pngvalid and checks with gcc -Wall -Wextra -Wunused. |
| 2971 | VC requires function attributes on function definitions as well as |
| 2972 | declarations, PNG_FUNCTION has been added to enable this and the |
| 2973 | relevant function definitions changed. |
| 2974 | |
| 2975 | Version 1.5.0beta40 [August 6, 2010] |
| 2976 | Correct use of _WINDOWS_ in pngconf.h |
| 2977 | Removed png_mem_ #defines; they are no longer used. |
| 2978 | Added the sRGB chunk to pngtest.png |
| 2979 | |
| 2980 | Version 1.5.0beta41 [August 11, 2010] |
| 2981 | Added the cHRM chunk to pngtest.png |
| 2982 | Don't try to use version-script with cygwin/mingw. |
| 2983 | Revised contrib/gregbook to work under cygwin/mingw. |
| 2984 | |
| 2985 | Version 1.5.0beta42 [August 18, 2010] |
| 2986 | Add .dll.a to the list of extensions to be symlinked by Makefile.am (Yaakov) |
| 2987 | Made all API functions that have const arguments and constant string |
| 2988 | literal pointers declare them (John Bowler). |
| 2989 | |
| 2990 | Version 1.5.0beta43 [August 20, 2010] |
| 2991 | Removed spurious tabs, shorten long lines (no source change) |
| 2992 | Also added scripts/chkfmt to validate the format of all the files that can |
| 2993 | reasonably be validated (it is suggested to run "make distclean" before |
| 2994 | checking, because some machine generated files have long lines.) |
| 2995 | Reformatted the CHANGES file to be more consistent throughout. |
| 2996 | Made changes to address various issues identified by GCC, mostly |
| 2997 | signed/unsigned and shortening problems on assignment but also a few |
| 2998 | difficult to optimize (for GCC) loops. |
| 2999 | Fixed non-GCC fixed point builds. In png.c a declaration was misplaced |
| 3000 | in an earlier update. Fixed to declare the auto variables at the head. |
| 3001 | Use cexcept.h in pngvalid.c. |
| 3002 | |
| 3003 | Version 1.5.0beta44 [August 24, 2010] |
| 3004 | Updated CMakeLists.txt to use CMAKE_INSTALL_LIBDIR variable; useful for |
| 3005 | installing libpng in /usr/lib64 (Funda Wang). |
| 3006 | Revised CMakeLists.txt to put the man pages in share/man/man* not man/man* |
| 3007 | Revised CMakeLists.txt to make symlinks instead of copies when installing. |
| 3008 | Changed PNG_LIB_NAME from pngNN to libpngNN in CMakeLists.txt (Philip Lowman) |
| 3009 | Implemented memory checks within pngvalid |
| 3010 | Reformatted/rearranged pngvalid.c to assist use of progressive reader. |
| 3011 | Check interlaced images in pngvalid |
| 3012 | Clarified pngusr.h comments in pnglibconf.dfa |
| 3013 | Simplified the pngvalid error-handling code now that cexcept.h is in place. |
| 3014 | Implemented progressive reader in pngvalid.c for standard tests |
| 3015 | Implemented progressive read in pngvalid.c gamma tests |
| 3016 | Turn on progressive reader in pngvalid.c by default and tidy code. |
| 3017 | |
| 3018 | Version 1.5.0beta45 [August 26, 2010] |
| 3019 | Added an explicit make step to projects/vstudio for pnglibconf.h |
| 3020 | Also corrected zlib.vcxproj into which Visual Studio had introduced |
| 3021 | what it calls an "authoring error". The change to make pnglibconf.h |
| 3022 | simply copies the file; in the future it may actually generate the |
| 3023 | file from scripts/pnglibconf.dfa as the other build systems do. |
| 3024 | Changed pngvalid to work when floating point APIs are disabled |
| 3025 | Renamed the prebuilt scripts/pnglibconf.h to scripts/pnglibconf.h.prebuilt |
| 3026 | Supply default values for PNG_USER_PRIVATEBUILD and PNG_USER_DLLFNAME_POSTFIX |
| 3027 | in pngpriv.h in case the user neglected to define them in their pngusr.h |
| 3028 | |
| 3029 | Version 1.5.0beta46 [August 28, 2010] |
| 3030 | Added new private header files to libpng_sources in CMakeLists.txt |
| 3031 | Added PNG_READ_16BIT, PNG_WRITE_16BIT, and PNG_16BIT options. |
| 3032 | Added reference to scripts/pnglibconf.h.prebuilt in the visualc71 project. |
| 3033 | |
| 3034 | Version 1.5.0beta47 [September 11, 2010] |
| 3035 | Fixed a number of problems with 64-bit compilation reported by Visual |
| 3036 | Studio 2010 (John Bowler). |
| 3037 | |
| 3038 | Version 1.5.0beta48 [October 4, 2010] |
| 3039 | Updated CMakeLists.txt (Philip Lowman). |
| 3040 | Revised autogen.sh to recognize and use $AUTOCONF, $AUTOMAKE, $AUTOHEADER, |
| 3041 | $AUTOPOINT, $ACLOCAL and $LIBTOOLIZE |
| 3042 | Fixed problem with symbols creation in Makefile.am which was assuming that |
| 3043 | all versions of ccp write to standard output by default (Martin Banky). The |
| 3044 | bug was introduced in libpng-1.2.9beta5. |
| 3045 | Removed unused mkinstalldirs. |
| 3046 | |
| 3047 | Version 1.5.0beta49 [October 8, 2010] |
| 3048 | Undid Makefile.am revision of 1.5.0beta48. |
| 3049 | |
| 3050 | Version 1.5.0beta50 [October 14, 2010] |
| 3051 | Revised Makefile.in to account for mkinstalldirs being removed. |
| 3052 | Added some "(unsigned long)" typecasts in printf statements in pngvalid.c. |
| 3053 | Suppressed a compiler warning in png_handle_sPLT(). |
| 3054 | Check for out-of-range text compression mode in png_set_text(). |
| 3055 | |
| 3056 | Version 1.5.0beta51 [October 15, 2010] |
| 3057 | Changed embedded dates to "(PENDING RELEASE) in beta releases (and future |
| 3058 | rc releases) to minimize the difference between releases. |
| 3059 | |
| 3060 | Version 1.5.0beta52 [October 16, 2010] |
| 3061 | Restored some of the embedded dates (in png.h, png.c, documentation, etc.) |
| 3062 | |
| 3063 | Version 1.5.0beta53 [October 18, 2010] |
| 3064 | Updated INSTALL to mention using "make maintainer-clean" and to remove |
| 3065 | obsolete statement about a custom ltmain.sh |
| 3066 | Disabled "color-tests" by default in Makefile.am so it will work with |
| 3067 | automake versions earlier than 1.11.1 |
| 3068 | Use document name "libpng-manual.txt" instead of "libpng-<version>.txt" |
| 3069 | to simplify version differences. |
| 3070 | Removed obsolete remarks about setjmp handling from INSTALL. |
| 3071 | Revised and renamed the typedef in png.h and png.c that was designed |
| 3072 | to catch library and header mismatch. |
| 3073 | |
| 3074 | Version 1.5.0beta54 [November 10, 2010] |
| 3075 | Require 48 bytes, not 64 bytes, for big_row_buf in overflow checks. |
| 3076 | Used a consistent structure for the pngget.c functions. |
| 3077 | |
| 3078 | Version 1.5.0beta55 [November 21, 2010] |
| 3079 | Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin) |
| 3080 | Moved reading of file signature into png_read_sig (Cosmin) |
| 3081 | Fixed atomicity of chunk header serialization (Cosmin) |
| 3082 | Added test for io_state in pngtest.c (Cosmin) |
| 3083 | Added "#!/bin/sh" at the top of contrib/pngminim/*/gather.sh scripts. |
| 3084 | Changes to remove gcc warnings (John Bowler) |
| 3085 | Certain optional gcc warning flags resulted in warnings in libpng code. |
| 3086 | With these changes only -Wconversion and -Wcast-qual cannot be turned on. |
| 3087 | Changes are trivial rearrangements of code. -Wconversion is not possible |
| 3088 | for pngrutil.c (because of the widespread use of += et al on variables |
| 3089 | smaller than (int) or (unsigned int)) and -Wcast-qual is not possible |
| 3090 | with pngwio.c and pngwutil.c because the 'write' callback and zlib |
| 3091 | compression both fail to declare their input buffers with 'const'. |
| 3092 | |
| 3093 | Version 1.5.0beta56 [December 7, 2010] |
| 3094 | Added the private PNG_UNUSED() macro definition in pngpriv.h. |
| 3095 | Added some commentary about PNG_EXPORT in png.h and pngconf.h |
| 3096 | Revised PNG_EXPORT() macro and added PNG_EXPORTA() macro, with the |
| 3097 | objective of simplifying and improving the cosmetic appearance of png.h. |
| 3098 | Fixed some incorrect "=" macro names in pnglibconf.dfa |
| 3099 | Included documentation of changes in 1.5.0 from 1.4.x in libpng-manual.txt |
| 3100 | |
| 3101 | Version 1.5.0beta57 [December 9, 2010] |
| 3102 | Documented the pngvalid gamma error summary with additional comments and |
| 3103 | print statements. |
| 3104 | Improved missing symbol handling in checksym.awk; symbols missing in both |
| 3105 | the old and new files can now be optionally ignored, treated as errors |
| 3106 | or warnings. |
| 3107 | Removed references to pngvcrd.c and pnggccrd.c from the vstudio project. |
| 3108 | Updated "libpng14" to "libpng15" in the visualc71 project. |
| 3109 | Enabled the strip16 tests in pngvalid.` |
| 3110 | Don't display test results (except PASS/FAIL) when running "make test". |
| 3111 | Instead put them in pngtest-log.txt |
| 3112 | Added "--with-zprefix=<string>" to configure.ac |
| 3113 | Updated the prebuilt configuration files to autoconf version 2.68 |
| 3114 | |
| 3115 | Version 1.5.0beta58 [December 19, 2010] |
| 3116 | Fixed interlace image handling and add test cases (John Bowler) |
| 3117 | Fixed the clean rule in Makefile.am to remove pngtest-log.txt |
| 3118 | Made minor changes to work around warnings in gcc 3.4 |
| 3119 | |
| 3120 | Version 1.5.0rc01 [December 27, 2010] |
| 3121 | No changes. |
| 3122 | |
| 3123 | Version 1.5.0rc02 [December 27, 2010] |
| 3124 | Eliminated references to the scripts/*.def files in project/visualc71. |
| 3125 | |
| 3126 | Version 1.5.0rc03 [December 28, 2010] |
| 3127 | Eliminated scripts/*.def and revised Makefile.am accordingly |
| 3128 | |
| 3129 | Version 1.5.0rc04 [December 29, 2010] |
| 3130 | Fixed bug in background transformation handling in pngrtran.c (it was |
| 3131 | looking for the flag in png_ptr->transformations instead of in |
| 3132 | png_ptr->flags) (David Raymond). |
| 3133 | |
| 3134 | Version 1.5.0rc05 [December 31, 2010] |
| 3135 | Fixed typo in a comment in CMakeLists.txt (libpng14 => libpng15) (Cosmin) |
| 3136 | |
| 3137 | Version 1.5.0rc06 [January 4, 2011] |
| 3138 | Changed the new configure option "zprefix=string" to "zlib-prefix=string" |
| 3139 | |
| 3140 | Version 1.5.0rc07 [January 4, 2011] |
| 3141 | Updated copyright year. |
| 3142 | |
| 3143 | Version 1.5.0 [January 6, 2011] |
| 3144 | No changes. |
| 3145 | |
| 3146 | version 1.5.1beta01 [January 8, 2011] |
| 3147 | Added description of png_set_crc_action() to the manual. |
| 3148 | Added a note in the manual that the type of the iCCP profile was changed |
| 3149 | from png_charpp to png_bytepp in png_get_iCCP(). This change happened |
| 3150 | in version 1.5.0beta36 but is not noted in the CHANGES. Similarly, |
| 3151 | it was changed from png_charpp to png_const_bytepp in png_set_iCCP(). |
| 3152 | Ensure that png_rgb_to_gray ignores palette mapped images, if libpng |
| 3153 | internally happens to call it with one, and fixed a failure to handle |
| 3154 | palette mapped images correctly. This fixes CVE-2690. |
| 3155 | |
| 3156 | Version 1.5.1beta02 [January 14, 2011] |
| 3157 | Fixed a bug in handling of interlaced images (bero at arklinux.org). |
| 3158 | Updated CMakeLists.txt (Clifford Yapp) |
| 3159 | |
| 3160 | Version 1.5.1beta03 [January 14, 2011] |
| 3161 | Fixed typecasting of some png_debug() statements (Cosmin) |
| 3162 | |
| 3163 | Version 1.5.1beta04 [January 16, 2011] |
| 3164 | Updated documentation of png_set|get_tRNS() (Thomas Klausner). |
| 3165 | Mentioned in the documentation that applications must #include "zlib.h" |
| 3166 | if they need access to anything in zlib.h, and that a number of |
| 3167 | macros such as png_memset() are no longer accessible by applications. |
| 3168 | Corrected pngvalid gamma test "sample" function to access all of the color |
| 3169 | samples of each pixel, instead of sampling the red channel three times. |
| 3170 | Prefixed variable names index, div, exp, gamma with "png_" to avoid "shadow" |
| 3171 | warnings, and (mistakenly) changed png_exp() to exp(). |
| 3172 | |
| 3173 | Version 1.5.1beta05 [January 16, 2011] |
| 3174 | Changed variable names png_index, png_div, png_exp, and png_gamma to |
| 3175 | char_index, divisor, exp_b10, and gamma_val, respectively, and |
| 3176 | changed exp() back to png_exp(). |
| 3177 | |
| 3178 | Version 1.5.1beta06 [January 20, 2011] |
| 3179 | Prevent png_push_crc_skip() from hanging while reading an unknown chunk |
| 3180 | or an over-large compressed zTXt chunk with the progressive reader. |
| 3181 | Eliminated more GCC "shadow" warnings. |
| 3182 | Revised png_fixed() in png.c to avoid compiler warning about reaching the |
| 3183 | end without returning anything. |
| 3184 | |
| 3185 | Version 1.5.1beta07 [January 22, 2011] |
| 3186 | In the manual, describe the png_get_IHDR() arguments in the correct order. |
| 3187 | Added const_png_structp and const_png_infop types, and used them in |
| 3188 | prototypes for most png_get_*() functions. |
| 3189 | |
| 3190 | Version 1.5.1beta08 [January 23, 2011] |
| 3191 | Added png_get_io_chunk_type() and deprecated png_get_io_chunk_name() |
| 3192 | Added synopses for the IO_STATE functions and other missing synopses |
| 3193 | to the manual. Removed the synopses from libpngpf.3 because they |
| 3194 | were out of date and no longer useful. Better information can be |
| 3195 | obtained by reading the prototypes and comments in pngpriv.h |
| 3196 | Attempted to fix cpp on Solaris with S. Studio 12 cc, fix build |
| 3197 | Added a make macro DFNCPP that is a CPP that will accept the tokens in |
| 3198 | a .dfn file and adds configure stuff to test for such a CPP. ./configure |
| 3199 | should fail if one is not available. |
| 3200 | Corrected const_png_ in png.h to png_const_ to avoid polluting the namespace. |
| 3201 | Added png_get_current_row_number and png_get_current_pass_number for the |
| 3202 | benefit of the user transform callback. |
| 3203 | Added png_process_data_pause and png_process_data_skip for the benefit of |
| 3204 | progressive readers that need to stop data processing or want to optimize |
| 3205 | skipping of unread data (e.g., if the reader marks a chunk to be skipped.) |
| 3206 | |
| 3207 | Version 1.5.1beta09 [January 24, 2011] |
| 3208 | Enhanced pngvalid, corrected an error in gray_to_rgb, corrected doc error. |
| 3209 | pngvalid contains tests of transforms, which tests are currently disabled |
| 3210 | because they are incompletely tested. gray_to_rgb was failing to expand |
| 3211 | the bit depth for smaller bit depth images; this seems to be a long |
| 3212 | standing error and resulted, apparently, in invalid output |
| 3213 | (CVE-2011-0408, CERT VU#643140). The documentation did not accurately |
| 3214 | describe what libpng really does when converting RGB to gray. |
| 3215 | |
| 3216 | Version 1.5.1beta10 [January 27, 2010] |
| 3217 | Fixed incorrect examples of callback prototypes in the manual, that were |
| 3218 | introduced in libpng-1.0.0. |
| 3219 | In addition the order of the png_get_uint macros with respect to the |
| 3220 | relevant function definitions has been reversed. This helps the |
| 3221 | preprocessing of the symbol files be more robust. Furthermore, the |
| 3222 | symbol file preprocessing now uses -DPNG_NO_USE_READ_MACROS even when |
| 3223 | the library may actually be built with PNG_USE_READ_MACROS; this stops |
| 3224 | the read macros interfering with the symbol file format. |
| 3225 | Made the manual, synopses, and function prototypes use the function |
| 3226 | argument names file_gamma, int_file_gamma, and srgb_intent consistently. |
| 3227 | |
| 3228 | Version 1.5.1beta11 [January 28, 2011] |
| 3229 | Changed PNG_UNUSED from "param=param;" to "{if(param){}}". |
| 3230 | Corrected local variable type in new API png_process_data_skip() |
| 3231 | The type was self-evidently incorrect but only causes problems on 64-bit |
| 3232 | architectures. |
| 3233 | Added transform tests to pngvalid and simplified the arguments. |
| 3234 | |
| 3235 | Version 1.5.1rc01 [January 29, 2011] |
| 3236 | No changes. |
| 3237 | |
| 3238 | Version 1.5.1rc02 [January 31, 2011] |
| 3239 | Added a request in the manual that applications do not use "png_" or |
| 3240 | "PNG_" to begin any of their own symbols. |
| 3241 | Changed PNG_UNUSED to "(void)param;" and updated the commentary in pngpriv.h |
| 3242 | |
| 3243 | Version 1.5.1 [February 3, 2011] |
| 3244 | No changes. |
| 3245 | |
| 3246 | Version 1.5.2beta01 [February 13, 2011] |
| 3247 | More -Wshadow fixes for older gcc compilers. Older gcc versions apparently |
| 3248 | check formal parameters names in function declarations (as well as |
| 3249 | definitions) to see if they match a name in the global namespace. |
| 3250 | Revised PNG_EXPORTA macro to not use an empty parameter, to accommodate the |
| 3251 | old VisualC++ preprocessor. |
| 3252 | Turned on interlace handling in png_read_png(). |
| 3253 | Fixed gcc pendantic warnings. |
| 3254 | Handle longjmp in Cygwin. |
| 3255 | Fixed png_get_current_row_number() in the interlaced case. |
| 3256 | Cleaned up ALPHA flags and transformations. |
| 3257 | Implemented expansion to 16 bits. |
| 3258 | |
| 3259 | Version 1.5.2beta02 [February 19, 2011] |
| 3260 | Fixed mistake in the descriptions of user read_transform and write_transform |
| 3261 | function prototypes in the manual. The row_info struct is png_row_infop. |
| 3262 | Reverted png_get_current_row_number() to previous (1.5.2beta01) behavior. |
| 3263 | Corrected png_get_current_row_number documentation |
| 3264 | Fixed the read/write row callback documentation. |
| 3265 | This documents the current behavior, where the callback is called after |
| 3266 | every row with information pertaining to the next row. |
| 3267 | |
| 3268 | Version 1.5.2beta03 [March 3, 2011] |
| 3269 | Fixed scripts/makefile.vcwin32 |
| 3270 | Updated contrib/pngsuite/README to add the word "modify". |
| 3271 | Define PNG_ALLOCATED to blank when _MSC_VER<1300. |
| 3272 | |
| 3273 | Version 1.5.2rc01 [March 19, 2011] |
| 3274 | Define remaining attributes to blank when MSC_VER<1300. |
| 3275 | ifdef out mask arrays in pngread.c when interlacing is not supported. |
| 3276 | |
| 3277 | Version 1.5.2rc02 [March 22, 2011] |
| 3278 | Added a hint to try CPP=/bin/cpp if "cpp -E" fails in scripts/pnglibconf.mak |
| 3279 | and in contrib/pngminim/*/makefile, eg., on SunOS 5.10, and removed "strip" |
| 3280 | from the makefiles. |
| 3281 | Fixed a bug (present since libpng-1.0.7) that makes png_handle_sPLT() fail |
| 3282 | to compile when PNG_NO_POINTER_INDEXING is defined (Chubanov Kirill) |
| 3283 | |
| 3284 | Version 1.5.2rc03 [March 24, 2011] |
| 3285 | Don't include standard header files in png.h while building the symbol table, |
| 3286 | to avoid cpp failure on SunOS (introduced PNG_BUILDING_SYMBOL_TABLE macro). |
| 3287 | |
| 3288 | Version 1.5.2 [March 31, 2011] |
| 3289 | No changes. |
| 3290 | |
| 3291 | Version 1.5.3beta01 [April 1, 2011] |
| 3292 | Re-initialize the zlib compressor before compressing non-IDAT chunks. |
| 3293 | Added API functions (png_set_text_compression_level() and four others) to |
| 3294 | set parameters for zlib compression of non-IDAT chunks. |
| 3295 | |
| 3296 | Version 1.5.3beta02 [April 3, 2011] |
| 3297 | Updated scripts/symbols.def with new API functions. |
| 3298 | Only compile the new zlib re-initializing code when text or iCCP is |
| 3299 | supported, using PNG_WRITE_COMPRESSED_TEXT_SUPPORTED macro. |
| 3300 | Improved the optimization of the zlib CMF byte (see libpng-1.2.6beta03). |
| 3301 | Optimize the zlib CMF byte in non-IDAT compressed chunks |
| 3302 | |
| 3303 | Version 1.5.3beta03 [April 16, 2011] |
| 3304 | Fixed gcc -ansi -pedantic compile. A strict ANSI system does not have |
| 3305 | snprintf, and the "__STRICT_ANSI__" detects that condition more reliably |
| 3306 | than __STDC__ (John Bowler). |
| 3307 | Removed the PNG_PTR_NORETURN attribute because it too dangerous. It tells |
| 3308 | the compiler that a user supplied callback (the error handler) does not |
| 3309 | return, yet there is no guarantee in practice that the application code |
| 3310 | will correctly implement the error handler because the compiler only |
| 3311 | issues a warning if there is a mistake (John Bowler). |
| 3312 | Removed the no-longer-used PNG_DEPSTRUCT macro. |
| 3313 | Updated the zlib version to 1.2.5 in the VStudio project. |
| 3314 | Fixed 64-bit builds where png_uint_32 is smaller than png_size_t in |
| 3315 | pngwutil.c (John Bowler). |
| 3316 | Fixed bug with stripping the filler or alpha channel when writing, that |
| 3317 | was introduced in libpng-1.5.2beta01 (bug report by Andrew Church). |
| 3318 | |
| 3319 | Version 1.5.3beta04 [April 27, 2011] |
| 3320 | Updated pngtest.png with the new zlib CMF optimization. |
| 3321 | Cleaned up conditional compilation code and of background/gamma handling |
| 3322 | Internal changes only except a new option to avoid compiling the |
| 3323 | png_build_grayscale_palette API (which is not used at all internally.) |
| 3324 | The main change is to move the transform tests (READ_TRANSFORMS, |
| 3325 | WRITE_TRANSFORMS) up one level to the caller of the APIs. This avoids |
| 3326 | calls to spurious functions if all transforms are disabled and slightly |
| 3327 | simplifies those functions. Pngvalid modified to handle this. |
| 3328 | A minor change is to stop the strip_16 and expand_16 interfaces from |
| 3329 | disabling each other; this allows the future alpha premultiplication |
| 3330 | code to use 16-bit intermediate values while still producing 8-bit output. |
| 3331 | png_do_background and png_do_gamma have been simplified to take a single |
| 3332 | pointer to the png_struct rather than pointers to every item required |
| 3333 | from the png_struct. This makes no practical difference to the internal |
| 3334 | code. |
| 3335 | A serious bug in the pngvalid internal routine 'standard_display_init' has |
| 3336 | been fixed - this failed to initialize the red channel and accidentally |
| 3337 | initialized the alpha channel twice. |
| 3338 | Changed png_struct jmp_buf member name from png_jmpbuf to tmp_jmpbuf to |
| 3339 | avoid a possible clash with the png_jmpbuf macro on some platforms. |
| 3340 | |
| 3341 | Version 1.5.3beta05 [May 6, 2011] |
| 3342 | Added the "_POSIX_SOURCE" feature test macro to ensure libpng sees the |
| 3343 | correct API. _POSIX_SOURCE is defined in pngpriv.h, pngtest.c and |
| 3344 | pngvalid.c to ensure that POSIX conformant systems disable non-POSIX APIs. |
| 3345 | Removed png_snprintf and added formatted warning messages. This change adds |
| 3346 | internal APIs to allow png_warning messages to have parameters without |
| 3347 | requiring the host OS to implement snprintf. As a side effect the |
| 3348 | dependency of the tIME-supporting RFC1132 code on stdio is removed and |
| 3349 | PNG_NO_WARNINGS does actually work now. |
| 3350 | Pass "" instead of '\0' to png_default_error() in png_err(). This mistake |
| 3351 | was introduced in libpng-1.2.20beta01. This fixes CVE-2011-2691. |
| 3352 | Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make the zlib "CMF" byte |
| 3353 | optimization configureable. |
| 3354 | IDAT compression failed if preceded by a compressed text chunk (bug |
| 3355 | introduced in libpng-1.5.3beta01-02). This was because the attempt to |
| 3356 | reset the zlib stream in png_write_IDAT happened after the first IDAT |
| 3357 | chunk had been deflated - much too late. In this change internal |
| 3358 | functions were added to claim/release the z_stream and, hopefully, make |
| 3359 | the code more robust. Also deflateEnd checking is added - previously |
| 3360 | libpng would ignore an error at the end of the stream. |
| 3361 | |
| 3362 | Version 1.5.3beta06 [May 8, 2011] |
| 3363 | Removed the -D_ALL_SOURCE from definitions for AIX in CMakeLists.txt |
| 3364 | Implemented premultiplied alpha support: png_set_alpha_mode API |
| 3365 | |
| 3366 | Version 1.5.3beta07 [May 11, 2011] |
| 3367 | Added expand_16 support to the high level interface. |
| 3368 | Added named value and 'flag' gamma support to png_set_gamma. Made a minor |
| 3369 | change from the previous (unreleased) ABI/API to hide the exact value used |
| 3370 | for Macs - it's not a good idea to embed this in the ABI! |
| 3371 | Moved macro definitions for PNG_HAVE_IHDR, PNG_HAVE_PLTE, and PNG_AFTER_IDAT |
| 3372 | from pngpriv.h to png.h because they must be visible to applications |
| 3373 | that call png_set_unknown_chunks(). |
| 3374 | Check for up->location !PNG_AFTER_IDAT when writing unknown chunks |
| 3375 | before IDAT. |
| 3376 | |
| 3377 | Version 1.5.3beta08 [May 16, 2011] |
| 3378 | Improved "pngvalid --speed" to exclude more of pngvalid from the time. |
| 3379 | Documented png_set_alpha_mode(), other changes in libpng.3/libpng-manual.txt |
| 3380 | The cHRM chunk now sets the defaults for png_set_rgb_to_gray() (when negative |
| 3381 | parameters are supplied by the caller), while in the absence of cHRM |
| 3382 | sRGB/Rec 709 values are still used. This introduced a divide-by-zero |
| 3383 | bug in png_handle_cHRM(). |
| 3384 | The bKGD chunk no longer overwrites the background value set by |
| 3385 | png_set_background(), allowing the latter to be used before the file |
| 3386 | header is read. It never performed any useful function to override |
| 3387 | the default anyway. |
| 3388 | Added memory overwrite and palette image checks to pngvalid.c |
| 3389 | Previously palette image code was poorly checked. Since the transformation |
| 3390 | code has a special palette path in most cases this was a severe weakness. |
| 3391 | Minor cleanup and some extra checking in pngrutil.c and pngrtran.c. When |
| 3392 | expanding an indexed image, always expand to RGBA if transparency is |
| 3393 | present. |
| 3394 | |
| 3395 | Version 1.5.3beta09 [May 17, 2011] |
| 3396 | Reversed earlier 1.5.3 change of transformation order; move png_expand_16 |
| 3397 | back where it was. The change doesn't work because it requires 16-bit |
| 3398 | gamma tables when the code only generates 8-bit ones. This fails |
| 3399 | silently; the libpng code just doesn't do any gamma correction. Moving |
| 3400 | the tests back leaves the old, inaccurate, 8-bit gamma calculations, but |
| 3401 | these are clearly better than none! |
| 3402 | |
| 3403 | Version 1.5.3beta10 [May 20, 2011] |
| 3404 | |
| 3405 | png_set_background() and png_expand_16() did not work together correctly. |
| 3406 | This problem is present in 1.5.2; if png_set_background is called with |
| 3407 | need_expand false and the matching 16 bit color libpng erroneously just |
| 3408 | treats it as an 8-bit color because of where png_do_expand_16 is in the |
| 3409 | transform list. This simple fix reduces the supplied colour to 8-bits, |
| 3410 | so it gets smashed, but this is better than the current behavior. |
| 3411 | Added tests for expand16, more fixes for palette image tests to pngvalid. |
| 3412 | Corrects the code for palette image tests and disables attempts to |
| 3413 | validate palette colors. |
| 3414 | |
| 3415 | Version 1.5.3rc01 [June 3, 2011] |
| 3416 | No changes. |
| 3417 | |
| 3418 | Version 1.5.3rc02 [June 8, 2011] |
| 3419 | Fixed uninitialized memory read in png_format_buffer() (Bug report by |
| 3420 | Frank Busse, CVE-2011-2501, related to CVE-2004-0421). |
| 3421 | |
| 3422 | Version 1.5.3beta11 [June 11, 2011] |
| 3423 | Fixed png_handle_sCAL which is broken in 1.5. This fixes CVE 2011-2692. |
| 3424 | Added sCAL to pngtest.png |
| 3425 | Revised documentation about png_set_user_limits() to say that it also affects |
| 3426 | png writing. |
| 3427 | Revised handling of png_set_user_limits() so that it can increase the |
| 3428 | limit beyond the PNG_USER_WIDTH|HEIGHT_MAX; previously it could only |
| 3429 | reduce it. |
| 3430 | Make the 16-to-8 scaling accurate. Dividing by 256 with no rounding is |
| 3431 | wrong (high by one) 25% of the time. Dividing by 257 with rounding is |
| 3432 | wrong in 128 out of 65536 cases. Getting the right answer all the time |
| 3433 | without division is easy. |
| 3434 | Added "_SUPPORTED" to the PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION macro. |
| 3435 | Added projects/owatcom, an IDE project for OpenWatcom to replace |
| 3436 | scripts/makefile.watcom. This project works with OpenWatcom 1.9. The |
| 3437 | IDE autogenerates appropriate makefiles (libpng.mk) for batch processing. |
| 3438 | The project is configurable, unlike the Visual Studio project, so long |
| 3439 | as the developer has an awk. |
| 3440 | Changed png_set_gAMA to limit the gamma value range so that the inverse |
| 3441 | of the stored value cannot overflow the fixed point representation, |
| 3442 | and changed other things OpenWatcom warns about. |
| 3443 | Revised pngvalid.c to test PNG_ALPHA_MODE_SUPPORTED correctly. This allows |
| 3444 | pngvalid to build when ALPHA_MODE is not supported, which is required if |
| 3445 | it is to build on libpng 1.4. |
| 3446 | Removed string/memory macros that are no longer used and are not |
| 3447 | necessarily fully supportable, particularly png_strncpy and png_snprintf. |
| 3448 | Added log option to pngvalid.c and attempted to improve gamma messages. |
| 3449 | |
| 3450 | Version 1.5.3 [omitted] |
| 3451 | People found the presence of a beta release following an rc release |
| 3452 | to be confusing; therefore we bump the version to libpng-1.5.4beta01 |
| 3453 | and there will be no libpng-1.5.3 release. |
| 3454 | |
| 3455 | Version 1.5.4beta01 [June 14, 2011] |
| 3456 | Made it possible to undefine PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED |
| 3457 | to get the same (inaccurate) output as libpng-1.5.2 and earlier. |
| 3458 | Moved definitions of PNG_HAVE_IHDR, PNG_AFTER_IDAT, and PNG_HAVE_PLTE |
| 3459 | outside of an unknown-chunk block in png.h because they are also |
| 3460 | needed for other uses. |
| 3461 | |
| 3462 | Version 1.5.4beta02 [June 14, 2011] |
| 3463 | Fixed and clarified LEGACY 16-to-8 scaling code. |
| 3464 | Added png_set_chop_16() API, to match inaccurate results from previous |
| 3465 | libpng versions. |
| 3466 | Removed the ACCURATE and LEGACY options (they are no longer useable) |
| 3467 | Use the old scaling method for background if png_set_chop_16() was |
| 3468 | called. |
| 3469 | Made png_set_chop_16() API removeable by disabling PNG_CHOP_16_TO_8_SUPPORTED |
| 3470 | |
| 3471 | Version 1.5.4beta03 [June 15, 2011] |
| 3472 | Fixed a problem in png_do_expand_palette() exposed by optimization in |
| 3473 | 1.5.3beta06 |
| 3474 | Also removed a spurious and confusing "trans" member ("trans") from png_info. |
| 3475 | The palette expand optimization prevented expansion to an intermediate RGBA |
| 3476 | form if tRNS was present but alpha was marked to be stripped; this exposed |
| 3477 | a check for tRNS in png_do_expand_palette() which is inconsistent with the |
| 3478 | code elsewhere in libpng. |
| 3479 | Correction to the expand_16 code; removed extra instance of |
| 3480 | png_set_scale_16_to_8 from pngpriv.h |
| 3481 | |
| 3482 | Version 1.5.4beta04 [June 16, 2011] |
| 3483 | Added a missing "#ifdef PNG_READ_BACKGROUND_SUPPORTED/#endif" in pngrtran.c |
| 3484 | Added PNG_TRANSFORM_CHOP_16 to the high-level read transforms. |
| 3485 | Made PNG_READ_16_TO_8_ACCURATE_SCALE configurable again. If this is |
| 3486 | not enabled, png_set_strip_16() and png_do_scale_16_to_8() aren't built. |
| 3487 | Revised contrib/visupng, gregbook, and pngminim to demonstrate chop_16_to_8 |
| 3488 | |
| 3489 | Version 1.5.4beta05 [June 16, 2011] |
| 3490 | Renamed png_set_strip_16() to png_set_scale_16() and renamed |
| 3491 | png_set_chop_16() to png_set_strip(16) in an attempt to minimize the |
| 3492 | behavior changes between libpng14 and libpng15. |
| 3493 | |
| 3494 | Version 1.5.4beta06 [June 18, 2011] |
| 3495 | Fixed new bug that was causing both strip_16 and scale_16 to be applied. |
| 3496 | |
| 3497 | Version 1.5.4beta07 [June 19, 2011] |
| 3498 | Fixed pngvalid, simplified macros, added checking for 0 in sCAL. |
| 3499 | The ACCURATE scale macro is no longer defined in 1.5 - call the |
| 3500 | png_scale_16_to_8 API. Made sure that PNG_READ_16_TO_8 is still defined |
| 3501 | if the png_strip_16_to_8 API is present. png_check_fp_number now |
| 3502 | maintains some state so that positive, negative and zero values are |
| 3503 | identified. sCAL uses these to be strictly spec conformant. |
| 3504 | |
| 3505 | Version 1.5.4beta08 [June 23, 2011] |
| 3506 | Fixed pngvalid if ACCURATE_SCALE is defined. |
| 3507 | Updated scripts/pnglibconf.h.prebuilt. |
| 3508 | |
| 3509 | Version 1.5.4rc01 [June 30, 2011] |
| 3510 | Define PNG_ALLOCATED to "restrict" only if MSC_VER >= 1400. |
| 3511 | |
| 3512 | Version 1.5.4 [July 7, 2011] |
| 3513 | No changes. |
| 3514 | |
| 3515 | Version 1.5.5beta01 [July 13, 2011] |
| 3516 | Fixed some typos and made other minor changes in the manual. |
| 3517 | Updated contrib/pngminus/makefile.std (Samuli Souminen) |
| 3518 | |
| 3519 | Version 1.5.5beta02 [July 14, 2011] |
| 3520 | Revised Makefile.am and Makefile.in to look in the right directory for |
| 3521 | pnglibconf.h.prebuilt |
| 3522 | |
| 3523 | Version 1.5.5beta03 [July 27, 2011] |
| 3524 | Enabled compilation with g++ compiler. This compiler does not recognize |
| 3525 | the file extension, so it always compiles with C++ rules. Made minor |
| 3526 | changes to pngrutil.c to cast results where C++ expects it but C does not. |
| 3527 | Minor editing of libpng.3 and libpng-manual.txt. |
| 3528 | |
| 3529 | Version 1.5.5beta04 [July 29, 2011] |
| 3530 | Revised CMakeLists.txt (Clifford Yapp) |
| 3531 | Updated commentary about the png_rgb_to_gray() default coefficients |
| 3532 | in the manual and in pngrtran.c |
| 3533 | |
| 3534 | Version 1.5.5beta05 [August 17, 2011] |
| 3535 | Prevent unexpected API exports from non-libpng DLLs on Windows. The "_DLL" |
| 3536 | is removed from the test of whether a DLL is being built (this erroneously |
| 3537 | caused the libpng APIs to be marked as DLL exports in static builds under |
| 3538 | Microsoft Visual Studio). Almost all of the libpng building configuration |
| 3539 | is moved from pngconf.h to pngpriv.h, but PNG_DLL_EXPORT remains in |
| 3540 | pngconf.h, though, so that it is colocated with the import definition (it |
| 3541 | is no longer used anywhere in the installed headers). The VStudio project |
| 3542 | definitions have been cleaned up: "_USRDLL" has been removed from the |
| 3543 | static library builds (this was incorrect), and PNG_USE_DLL has been added |
| 3544 | to pngvalid to test the functionality (pngtest does not supply it, |
| 3545 | deliberately). The spurious "_EXPORTS" has been removed from the |
| 3546 | libpng build (all these errors were a result of copy/paste between project |
| 3547 | configurations.) |
| 3548 | Added new types and internal functions for CIE RGB end point handling to |
| 3549 | pngpriv.h (functions yet to be implemented). |
| 3550 | |
| 3551 | Version 1.5.5beta06 [August 26, 2011] |
| 3552 | Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set in CMakeLists.txt |
| 3553 | (Clifford Yap) |
| 3554 | Fixes to rgb_to_gray and cHRM XYZ APIs (John Bowler): |
| 3555 | The rgb_to_gray code had errors when combined with gamma correction. |
| 3556 | Some pixels were treated as true grey when they weren't and such pixels |
| 3557 | and true grey ones were not gamma corrected (the original value of the |
| 3558 | red component was used instead). APIs to get and set cHRM using color |
| 3559 | space end points have been added and the rgb_to_gray code that defaults |
| 3560 | based on cHRM, and the divide-by-zero bug in png_handle_cHRM (CERT |
| 3561 | VU#477046, CVE-2011-3328, introduced in 1.5.4) have been corrected. |
| 3562 | A considerable number of tests has been added to pngvalid for the |
| 3563 | rgb_to_gray transform. |
| 3564 | Arithmetic errors in rgb_to_gray whereby the calculated gray value was |
| 3565 | truncated to the bit depth rather than rounded have been fixed except in |
| 3566 | the 8-bit non-gamma-corrected case (where consistency seems more important |
| 3567 | than correctness.) The code still has considerable inaccuracies in the |
| 3568 | 8-bit case because 8-bit linear arithmetic is used. |
| 3569 | |
| 3570 | Version 1.5.5beta07 [September 7, 2011] |
| 3571 | Added "$(ARCH)" option to makefile.darwin |
| 3572 | Added SunOS support to configure.ac and Makefile.am |
| 3573 | Changed png_chunk_benign_error() to png_warning() in png.c, in |
| 3574 | png_XYZ_from_xy_checked(). |
| 3575 | |
| 3576 | Version 1.5.5beta08 [September 10, 2011] |
| 3577 | Fixed 64-bit compilation errors (gcc). The errors fixed relate |
| 3578 | to conditions where types that are 32 bits in the GCC 32-bit |
| 3579 | world (uLong and png_size_t) become 64 bits in the 64-bit |
| 3580 | world. This produces potential truncation errors which the |
| 3581 | compiler correctly flags. |
| 3582 | Relocated new HAVE_SOLARIS_LD definition in configure.ac |
| 3583 | Constant changes for 64-bit compatibility (removal of L suffixes). The |
| 3584 | 16-bit cases still use "L" as we don't have a 16-bit test system. |
| 3585 | |
| 3586 | Version 1.5.5rc01 [September 15, 2011] |
| 3587 | Removed "L" suffixes in pngpriv.h |
| 3588 | |
| 3589 | Version 1.5.5 [September 22, 2011] |
| 3590 | No changes. |
| 3591 | |
| 3592 | Version 1.5.6beta01 [September 22, 2011] |
| 3593 | Fixed some 64-bit type conversion warnings in pngrtran.c |
| 3594 | Moved row_info from png_struct to a local variable. |
| 3595 | The various interlace mask arrays have been made into arrays of |
| 3596 | bytes and made PNG_CONST and static (previously some arrays were |
| 3597 | marked PNG_CONST and some weren't). |
| 3598 | Additional checks have been added to the transform code to validate the |
| 3599 | pixel depths after the transforms on both read and write. |
| 3600 | Removed some redundant code from pngwrite.c, in png_destroy_write_struct(). |
| 3601 | Changed chunk reading/writing code to use png_uint_32 instead of png_byte[4]. |
| 3602 | This removes the need to allocate temporary strings for chunk names on |
| 3603 | the stack in the read/write code. Unknown chunk handling still uses the |
| 3604 | string form because this is exposed in the API. |
| 3605 | |
| 3606 | Version 1.5.6beta02 [September 26, 2011] |
| 3607 | Added a note in the manual the png_read_update_info() must be called only |
| 3608 | once with a particular info_ptr. |
| 3609 | Fixed a typo in the definition of the new PNG_STRING_FROM_CHUNK(s,c) macro. |
| 3610 | |
| 3611 | Version 1.5.6beta03 [September 28, 2011] |
| 3612 | Revised test-pngtest.sh to report FAIL when pngtest fails. |
| 3613 | Added "--strict" option to pngtest, to report FAIL when the failure is |
| 3614 | only because the resulting valid files are different. |
| 3615 | Revised CMakeLists.txt to work with mingw and removed some material from |
| 3616 | CMakeLists.txt that is no longer useful in libpng-1.5. |
| 3617 | |
| 3618 | Version 1.5.6beta04 [October 5, 2011] |
| 3619 | Fixed typo in Makefile.in and Makefile.am ("-M Wl" should be "-M -Wl")." |
| 3620 | |
| 3621 | Version 1.5.6beta05 [October 12, 2011] |
| 3622 | Speed up png_combine_row() for interlaced images. This reduces the generality |
| 3623 | of the code, allowing it to be optimized for Adam7 interlace. The masks |
| 3624 | passed to png_combine_row() are now generated internally, avoiding |
| 3625 | some code duplication and localizing the interlace handling somewhat. |
| 3626 | Align png_struct::row_buf - previously it was always unaligned, caused by |
| 3627 | a bug in the code that attempted to align it; the code needs to subtract |
| 3628 | one from the pointer to take account of the filter byte prepended to |
| 3629 | each row. |
| 3630 | Optimized png_combine_row() when rows are aligned. This gains a small |
| 3631 | percentage for 16-bit and 32-bit pixels in the typical case where the |
| 3632 | output row buffers are appropriately aligned. The optimization was not |
| 3633 | previously possible because the png_struct buffer was always misaligned. |
| 3634 | Fixed bug in png_write_chunk_header() debug print, introduced in 1.5.6beta01. |
| 3635 | |
| 3636 | Version 1.5.6beta06 [October 17, 2011] |
| 3637 | Removed two redundant tests for unitialized row. |
| 3638 | Fixed a relatively harmless memory overwrite in compressed text writing |
| 3639 | with a 1 byte zlib buffer. |
| 3640 | Add ability to call png_read_update_info multiple times to pngvalid.c. |
| 3641 | Fixes for multiple calls to png_read_update_info. These fixes attend to |
| 3642 | most of the errors revealed in pngvalid, however doing the gamma work |
| 3643 | twice results in inaccuracies that can't be easily fixed. There is now |
| 3644 | a warning in the code if this is going to happen. |
| 3645 | Turned on multiple png_read_update_info in pngvalid transform tests. |
| 3646 | Prevent libpng from overwriting unused bits at the end of the image when |
| 3647 | it is not byte aligned, while reading. Prior to libpng-1.5.6 libpng would |
| 3648 | overwrite the partial byte at the end of each row if the row width was not |
| 3649 | an exact multiple of 8 bits and the image is not interlaced. |
| 3650 | |
| 3651 | Version 1.5.6beta07 [October 21, 2011] |
| 3652 | Made png_ptr->prev_row an aligned pointer into png_ptr->big_prev_row |
| 3653 | (Mans Rullgard). |
| 3654 | |
| 3655 | Version 1.5.6rc01 [October 26, 2011] |
| 3656 | Changed misleading "Missing PLTE before cHRM" warning to "Out of place cHRM" |
| 3657 | |
| 3658 | Version 1.5.6rc02 [October 27, 2011] |
| 3659 | Added LSR() macro to defend against buggy compilers that evaluate non-taken |
| 3660 | code branches and complain about out-of-range shifts. |
| 3661 | |
| 3662 | Version 1.5.6rc03 [October 28, 2011] |
| 3663 | Renamed the LSR() macro to PNG_LSR() and added PNG_LSL() macro. |
| 3664 | Fixed compiler warnings with Intel and MSYS compilers. The logical shift |
| 3665 | fix for Microsoft Visual C is required by other compilers, so this |
| 3666 | enables that fix for all compilers when using compile-time constants. |
| 3667 | Under MSYS 'byte' is a name declared in a system header file, so we |
| 3668 | changed the name of a local variable to avoid the warnings that result. |
| 3669 | Added #define PNG_ALIGN_TYPE PNG_ALIGN_NONE to contrib/pngminim/*/pngusr.h |
| 3670 | |
| 3671 | Version 1.5.6 [November 3, 2011] |
| 3672 | No changes. |
| 3673 | |
| 3674 | Version 1.5.7beta01 [November 4, 2011] |
| 3675 | Added support for ARM processor, when decoding all PNG up-filtered rows |
| 3676 | and any other-filtered rows with 3 or 4 bytes per pixel (Mans Rullgard). |
| 3677 | Fixed bug in pngvalid on early allocation failure; fixed type cast in |
| 3678 | pngmem.c; pngvalid would attempt to call png_error() if the allocation |
| 3679 | of a png_struct or png_info failed. This would probably have led to a |
| 3680 | crash. The pngmem.c implementation of png_malloc() included a cast |
| 3681 | to png_size_t which would fail on large allocations on 16-bit systems. |
| 3682 | Fix for the preprocessor of the Intel C compiler. The preprocessor |
| 3683 | splits adjacent @ signs with a space; this changes the concatentation |
| 3684 | token from @-@-@ to PNG_JOIN; that should work with all compiler |
| 3685 | preprocessors. |
| 3686 | Paeth filter speed improvements from work by Siarhei Siamashka. This |
| 3687 | changes the 'Paeth' reconstruction function to improve the GCC code |
| 3688 | generation on x86. The changes are only part of the suggested ones; |
| 3689 | just the changes that definitely improve speed and remain simple. |
| 3690 | The changes also slightly increase the clarity of the code. |
| 3691 | |
| 3692 | Version 1.5.7beta02 [November 11, 2011] |
| 3693 | Check compression_type parameter in png_get_iCCP and remove spurious |
| 3694 | casts. The compression_type parameter is always assigned to, so must |
| 3695 | be non-NULL. The cast of the profile length potentially truncated the |
| 3696 | value unnecessarily on a 16-bit int system, so the cast of the (byte) |
| 3697 | compression type to (int) is specified by ANSI-C anyway. |
| 3698 | Fixed FP division by zero in pngvalid.c; the 'test_pixel' code left |
| 3699 | the sBIT fields in the test pixel as 0, which resulted in a floating |
| 3700 | point division by zero which was irrelevant but causes systems where |
| 3701 | FP exceptions cause a crash. Added code to pngvalid to turn on FP |
| 3702 | exceptions if the appropriate glibc support is there to ensure this is |
| 3703 | tested in the future. |
| 3704 | Updated scripts/pnglibconf.mak and scripts/makefile.std to handle the |
| 3705 | new PNG_JOIN macro. |
| 3706 | Added versioning to pnglibconf.h comments. |
| 3707 | Simplified read/write API initial version; basic read/write tested on |
| 3708 | a variety of images, limited documentation (in the header file.) |
| 3709 | Installed more accurate linear to sRGB conversion tables. The slightly |
| 3710 | modified tables reduce the number of 16-bit values that |
| 3711 | convert to an off-by-one 8-bit value. The "makesRGB.c" code that was used |
| 3712 | to generate the tables is now in a contrib/sRGBtables sub-directory. |
| 3713 | |
| 3714 | Version 1.5.7beta03 [November 17, 2011] |
| 3715 | Removed PNG_CONST from the sRGB table declarations in pngpriv.h and png.c |
| 3716 | Added run-time detection of NEON support. |
| 3717 | Added contrib/libtests; includes simplified API test and timing test and |
| 3718 | a color conversion utility for rapid checking of failed 'pngstest' results. |
| 3719 | Multiple transform bug fixes plus a work-round for double gamma correction. |
| 3720 | libpng does not support more than one transform that requires linear data |
| 3721 | at once - if this is tried typically the results is double gamma |
| 3722 | correction. Since the simplified APIs can need rgb to gray combined with |
| 3723 | a compose operation it is necessary to do one of these outside the main |
| 3724 | libpng transform code. This check-in also contains fixes to various bugs |
| 3725 | in the simplified APIs themselves and to some bugs in compose and rgb to |
| 3726 | gray (on palette) itself. |
| 3727 | Fixes for C++ compilation using g++ When libpng source is compiled |
| 3728 | using g++. The compiler imposes C++ rules on the C source; thus it |
| 3729 | is desireable to make the source work with either C or C++ rules |
| 3730 | without throwing away useful error information. This change adds |
| 3731 | png_voidcast to allow C semantic (void*) cases or the corresponding |
| 3732 | C++ static_cast operation, as appropriate. |
| 3733 | Added --noexecstack to assembler file compilation. GCC does not set |
| 3734 | this on assembler compilation, even though it does on C compilation. |
| 3735 | This creates security issues if assembler code is enabled; the |
| 3736 | work-around is to set it by default in the flags for $(CCAS) |
| 3737 | Work around compilers that don't support declaration of const data. Some |
| 3738 | compilers fault 'extern const' data declarations (because the data is |
| 3739 | not initialized); this turns on const-ness only for compilers where |
| 3740 | this is known to work. |
| 3741 | |
| 3742 | Version 1.5.7beta04 [November 17, 2011] |
| 3743 | Since the gcc driver does not recognize the --noexecstack flag, we must |
| 3744 | use the -Wa prefix to have it passed through to the assembler. |
| 3745 | Also removed a duplicate setting of this flag. |
| 3746 | Added files that were omitted from the libpng-1.5.7beta03 zip distribution. |
| 3747 | |
| 3748 | Version 1.5.7beta05 [November 25, 2011] |
| 3749 | Removed "zTXt" from warning in generic chunk decompression function. |
| 3750 | Validate time settings passed to pngset() and png_convert_to_rfc1123() |
| 3751 | (Frank Busse). |
| 3752 | Added MINGW support to CMakeLists.txt |
| 3753 | Reject invalid compression flag or method when reading the iTXt chunk. |
| 3754 | Backed out 'simplified' API changes. The API seems too complex and there |
| 3755 | is a lack of consensus or enthusiasm for the proposals. The API also |
| 3756 | reveals significant bugs inside libpng (double gamma correction and the |
| 3757 | known bug of being unable to retrieve a corrected palette). It seems |
| 3758 | better to wait until the bugs, at least, are corrected. |
| 3759 | Moved pngvalid.c into contrib/libtests |
| 3760 | Rebuilt Makefile.in, configure, etc., with autoconf-2.68 |
| 3761 | |
| 3762 | Version 1.5.7rc01 [December 1, 2011] |
| 3763 | Replaced an "#if" with "#ifdef" in pngrtran.c |
| 3764 | Revised #if PNG_DO_BC block in png.c (use #ifdef and add #else) |
| 3765 | |
| 3766 | Version 1.5.7rc02 [December 5, 2011] |
| 3767 | Revised project files and contrib/pngvalid/pngvalid.c to account for |
| 3768 | the relocation of pngvalid into contrib/libtests. |
| 3769 | Revised pngconf.h to use " __declspec(restrict)" only when MSC_VER >= 1400, |
| 3770 | as in libpng-1.5.4. |
| 3771 | Put CRLF line endings in the owatcom project files. |
| 3772 | |
| 3773 | Version 1.5.7rc03 [December 7, 2011] |
| 3774 | Updated CMakeLists.txt to account for the relocation of pngvalid.c |
| 3775 | |
| 3776 | Version 1.5.7 [December 15, 2011] |
| 3777 | Minor fixes to pngvalid.c for gcc 4.6.2 compatibility to remove warnings |
| 3778 | reported by earlier versions. |
| 3779 | Fixed minor memset/sizeof errors in pngvalid.c. |
| 3780 | |
| 3781 | Version 1.6.0beta01 [December 15, 2011] |
| 3782 | Removed machine-generated configure files from the GIT repository (they will |
| 3783 | continue to appear in the tarball distributions and in the libpng15 and |
| 3784 | earlier GIT branches). |
| 3785 | Restored the new 'simplified' API, which was started in libpng-1.5.7beta02 |
| 3786 | but later deleted from libpng-1.5.7beta05. |
| 3787 | Added example programs for the new 'simplified' API. |
| 3788 | Added ANSI-C (C90) headers and require them, and take advantage of the |
| 3789 | change. Also fixed some of the projects/* and contrib/* files that needed |
| 3790 | updates for libpng16 and the move of pngvalid.c. |
| 3791 | With this change the required ANSI-C header files are assumed to exist: the |
| 3792 | implementation must provide float.h, limits.h, stdarg.h and stddef.h and |
| 3793 | libpng relies on limits.h and stddef.h existing and behaving as defined |
| 3794 | (the other two required headers aren't used). Non-ANSI systems that don't |
| 3795 | have stddef.h or limits.h will have to provide an appropriate fake |
| 3796 | containing the relevant types and #defines. |
| 3797 | The use of FAR/far has been eliminated and the definition of png_alloc_size_t |
| 3798 | is now controlled by a flag so that 'small size_t' systems can select it |
| 3799 | if necessary. Libpng 1.6 may not currently work on such systems -- it |
| 3800 | seems likely that it will ask 'malloc' for more than 65535 bytes with any |
| 3801 | image that has a sufficiently large row size (rather than simply failing |
| 3802 | to read such images). |
| 3803 | New tools directory containing tools used to generate libpng code. |
| 3804 | Fixed race conditions in parallel make builds. With higher degrees of |
| 3805 | parallelism during 'make' the use of the same temporary file names such |
| 3806 | as 'dfn*' can result in a race where a temporary file from one arm of the |
| 3807 | build is deleted or overwritten in another arm. This changes the |
| 3808 | temporary files for suffix rules to always use $* and ensures that the |
| 3809 | non-suffix rules use unique file names. |
| 3810 | |
| 3811 | Version 1.6.0beta02 [December 21, 2011] |
| 3812 | Correct configure builds where build and source directories are separate. |
| 3813 | The include path of 'config.h' was erroneously made relative in pngvalid.c |
| 3814 | in libpng 1.5.7. |
| 3815 | |
| 3816 | Version 1.6.0beta03 [December 22, 2011] |
| 3817 | Start-up code size improvements, error handler flexibility. These changes |
| 3818 | alter how the tricky allocation of the initial png_struct and png_info |
| 3819 | structures are handled. png_info is now handled in pretty much the same |
| 3820 | way as everything else, except that the allocations handle NULL return |
| 3821 | silently. png_struct is changed in a similar way on allocation and on |
| 3822 | deallocation a 'safety' error handler is put in place (which should never |
| 3823 | be required). The error handler itself is changed to permit mismatches |
| 3824 | in the application and libpng error buffer size; however, this means a |
| 3825 | silent change to the API to return the jmp_buf if the size doesn't match |
| 3826 | the size from the libpng compilation; libpng now allocates the memory and |
| 3827 | this may fail. Overall these changes result in slight code size |
| 3828 | reductions; however, this is a reduction in code that is always executed |
| 3829 | so is particularly valuable. Overall on a 64-bit system the libpng DLL |
| 3830 | decreases in code size by 1733 bytes. pngerror.o increases in size by |
| 3831 | about 465 bytes because of the new functionality. |
| 3832 | Added png_convert_to_rfc1123_buffer() and deprecated png_convert_to_rfc1123() |
| 3833 | to avoid including a spurious buffer in the png_struct. |
| 3834 | |
| 3835 | Version 1.6.0beta04 [December 30, 2011] |
| 3836 | Regenerated configure scripts with automake-1.11.2 |
| 3837 | Eliminated png_info_destroy(). It is now used only in png.c and only calls |
| 3838 | one other internal function and memset(). |
| 3839 | Enabled png_get_sCAL_fixed() if floating point APIs are enabled. Previously |
| 3840 | it was disabled whenever internal fixed point arithmetic was selected, |
| 3841 | which meant it didn't exist even on systems where FP was available but not |
| 3842 | preferred. |
| 3843 | Added pngvalid.c compile time checks for const APIs. |
| 3844 | Implemented 'restrict' for png_info and png_struct. Because of the way |
| 3845 | libpng works both png_info and png_struct are always accessed via a |
| 3846 | single pointer. This means adding C99 'restrict' to the pointer gives |
| 3847 | the compiler some opportunity to optimize the code. This change allows |
| 3848 | that. |
| 3849 | Moved AC_MSG_CHECKING([if libraries can be versioned]) later to the proper |
| 3850 | location in configure.ac (Gilles Espinasse). |
| 3851 | Changed png_memcpy to C assignment where appropriate. Changed all those |
| 3852 | uses of png_memcpy that were doing a simple assignment to assignments |
| 3853 | (all those cases where the thing being copied is a non-array C L-value). |
| 3854 | Added some error checking to png_set_*() routines. |
| 3855 | Removed the reference to the non-exported function png_memcpy() from |
| 3856 | example.c. |
| 3857 | Fixed the Visual C 64-bit build - it requires jmp_buf to be aligned, but |
| 3858 | it had become misaligned. |
| 3859 | Revised contrib/pngminus/pnm2png.c to avoid warnings when png_uint_32 |
| 3860 | and unsigned long are of different sizes. |
| 3861 | |
| 3862 | Version 1.6.0beta05 [January 15, 2012] |
| 3863 | Updated manual with description of the simplified API (copied from png.h) |
| 3864 | Fix bug in pngerror.c: some long warnings were being improperly truncated |
| 3865 | (CVE-2011-3464, bug introduced in libpng-1.5.3beta05). |
| 3866 | |
| 3867 | Version 1.6.0beta06 [January 24, 2012] |
| 3868 | Added palette support to the simplified APIs. This commit |
| 3869 | changes some of the macro definitions in png.h, app code |
| 3870 | may need corresponding changes. |
| 3871 | Increased the formatted warning buffer to 192 bytes. |
| 3872 | Added color-map support to simplified API. This is an initial version for |
| 3873 | review; the documentation has not yet been updated. |
| 3874 | Fixed Min/GW uninstall to remove libpng.dll.a |
| 3875 | |
| 3876 | Version 1.6.0beta07 [January 28, 2012] |
| 3877 | Eliminated Intel icc/icl compiler warnings. The Intel (GCC derived) |
| 3878 | compiler issues slightly different warnings from those issued by the |
| 3879 | current vesions of GCC. This eliminates those warnings by |
| 3880 | adding/removing casts and small code rewrites. |
| 3881 | Updated configure.ac from autoupdate: added --enable-werror option. |
| 3882 | Also some layout regularization and removal of introduced tab characters |
| 3883 | (replaced with 3-character indentation). Obsolete macros identified by |
| 3884 | autoupdate have been removed; the replacements are all in 2.59 so |
| 3885 | the pre-req hasn't been changed. --enable-werror checks for support |
| 3886 | for -Werror (or the given argument) in the compiler. This mimics the |
| 3887 | gcc configure option by allowing -Werror to be turned on safely; without |
| 3888 | the option the tests written in configure itself fail compilation because |
| 3889 | they cause compiler warnings. |
| 3890 | Rewrote autogen.sh to run autoreconf instead of running tools one-by-one. |
| 3891 | Conditionalize the install rules for MINGW and CYGWIN in CMakeLists.txt and |
| 3892 | set CMAKE_LIBRARY_OUTPUT_DIRECTORY to "lib" on all platforms (C. Yapp). |
| 3893 | Freeze libtool files in the 'scripts' directory. This version of autogen.sh |
| 3894 | attempts to dissuade people from running it when it is not, or should not, |
| 3895 | be necessary. In fact, autogen.sh does not work when run in a libpng |
| 3896 | directory extracted from a tar distribution anymore. You must run it in |
| 3897 | a GIT clone instead. |
| 3898 | Added two images to contrib/pngsuite (1-bit and 2-bit transparent grayscale), |
| 3899 | and renamed three whose names were inconsistent with those in |
| 3900 | pngsuite/README.txt. |
| 3901 | |
| 3902 | Version 1.6.0beta08 [February 1, 2012] |
| 3903 | Fixed Image::colormap misalignment in pngstest.c |
| 3904 | Check libtool/libtoolize version number (2.4.2) in configure.ac |
| 3905 | Divide test-pngstest.sh into separate pngstest runs for basic and |
| 3906 | transparent images. |
| 3907 | Moved automake options to AM_INIT_AUTOMAKE in configure.ac |
| 3908 | Added color-tests, silent-rules (Not yet implemented in Makefile.am) and |
| 3909 | version checking to configure.ac |
| 3910 | Improved pngstest speed by not doing redundant tests and add const to |
| 3911 | the background parameter of png_image_finish_read. The --background |
| 3912 | option is now done automagically only when required, so that commandline |
| 3913 | option no longer exists. |
| 3914 | Cleaned up pngpriv.h to consistently declare all functions and data. |
| 3915 | Also eliminated PNG_CONST_DATA, which is apparently not needed but we |
| 3916 | can't be sure until it is gone. |
| 3917 | Added symbol prefixing that allows all the libpng external symbols |
| 3918 | to be prefixed (suggested by Reuben Hawkins). |
| 3919 | Updated "ftbb*.png" list in the owatcom and vstudio projects. |
| 3920 | Fixed 'prefix' builds on clean systems. The generation of pngprefix.h |
| 3921 | should not require itself. |
| 3922 | Updated INSTALL to explain that autogen.sh must be run in a GIT clone, |
| 3923 | not in a libpng directory extracted from a tar distribution. |
| 3924 | |
| 3925 | Version 1.6.0beta09 [February 1, 2012] |
| 3926 | Reverted the prebuilt configure files to libpng-1.6.0beta05 condition. |
| 3927 | |
| 3928 | Version 1.6.0beta10 [February 3, 2012] |
| 3929 | Added Z_SOLO for zlib-1.2.6+ and correct pngstest tests |
| 3930 | Updated list of test images in CMakeLists.txt |
| 3931 | Updated the prebuilt configure files to current condition. |
| 3932 | Revised INSTALL information about autogen.sh; it works in tar distributions. |
| 3933 | |
| 3934 | Version 1.6.0beta11 [February 16, 2012] |
| 3935 | Fix character count in pngstest command in projects/owatcom/pngstest.tgt |
| 3936 | Revised test-pngstest.sh to report PASS/FAIL for each image. |
| 3937 | Updated documentation about the simplified API. |
| 3938 | Corrected estimate of error in libpng png_set_rgb_to_gray API. The API is |
| 3939 | extremely inaccurate for sRGB conversions because it uses an 8-bit |
| 3940 | intermediate linear value and it does not use the sRGB transform, so it |
| 3941 | suffers from the known instability in gamma transforms for values close |
| 3942 | to 0 (see Poynton). The net result is that the calculation has a maximum |
| 3943 | error of 14.99/255; 0.5/255^(1/2.2). pngstest now uses 15 for the |
| 3944 | permitted 8-bit error. This may still not be enough because of arithmetic |
| 3945 | error. |
| 3946 | Removed some unused arrays (with #ifdef) from png_read_push_finish_row(). |
| 3947 | Fixed a memory overwrite bug in simplified read of RGB PNG with |
| 3948 | non-linear gamma Also bugs in the error checking in pngread.c and changed |
| 3949 | quite a lot of the checks in pngstest.c to be correct; either correctly |
| 3950 | written or not over-optimistic. The pngstest changes are insufficient to |
| 3951 | allow all possible RGB transforms to be passed; pngstest cmppixel needs |
| 3952 | to be rewritten to make it clearer which errors it allows and then changed |
| 3953 | to permit known inaccuracies. |
| 3954 | Removed tests for no-longer-used *_EMPTY_PLTE_SUPPORTED from pngstruct.h |
| 3955 | Fixed fixed/float API export conditionals. 1) If FIXED_POINT or |
| 3956 | FLOATING_POINT options were switched off, png.h ended up with lone ';' |
| 3957 | characters. This is not valid ANSI-C outside a function. The ';' |
| 3958 | characters have been moved inside the definition of PNG_FP_EXPORT and |
| 3959 | PNG_FIXED_EXPORT. 2) If either option was switched off, the declaration |
| 3960 | of the corresponding functions were completely omitted, even though some |
| 3961 | of them are still used internally. The result is still valid, but |
| 3962 | produces warnings from gcc with some warning options (including -Wall). The |
| 3963 | fix is to cause png.h to declare the functions with PNG_INTERNAL_FUNCTION |
| 3964 | when png.h is included from pngpriv.h. |
| 3965 | Check for invalid palette index while reading paletted PNG. When one is |
| 3966 | found, issue a warning and increase png_ptr->num_palette accordingly. |
| 3967 | Apps are responsible for checking to see if that happened. |
| 3968 | |
| 3969 | Version 1.6.0beta12 [February 18, 2012] |
| 3970 | Do not increase num_palette on invalid_index. |
| 3971 | Relocated check for invalid palette index to pngrtran.c, after unpacking |
| 3972 | the sub-8-bit pixels. |
| 3973 | Fixed CVE-2011-3026 buffer overrun bug. This bug was introduced when |
| 3974 | iCCP chunk support was added at libpng-1.0.6. Deal more correctly with the |
| 3975 | test on iCCP chunk length. Also removed spurious casts that may hide |
| 3976 | problems on 16-bit systems. |
| 3977 | |
| 3978 | Version 1.6.0beta13 [February 24, 2012] |
| 3979 | Eliminated redundant png_push_read_tEXt|zTXt|iTXt|unknown code from |
| 3980 | pngpread.c and use the sequential png_handle_tEXt, etc., in pngrutil.c; |
| 3981 | now that png_ptr->buffer is inaccessible to applications, the special |
| 3982 | handling is no longer useful. |
| 3983 | Added PNG_SAFE_LIMITS feature to pnglibconf.dfa, pngpriv.h, and new |
| 3984 | pngusr.dfa to reset the user limits to safe ones if PNG_SAFE_LIMITS is |
| 3985 | defined. To enable, use "CPPFLAGS=-DPNG_SAFE_LIMITS_SUPPORTED=1" on the |
| 3986 | configure command or put #define PNG_SAFE_LIMITS_SUPPORTED in |
| 3987 | pnglibconf.h.prebuilt and pnglibconf.h. |
| 3988 | |
| 3989 | Version 1.6.0beta14 [February 27, 2012] |
| 3990 | Added information about the new limits in the manual. |
| 3991 | Updated Makefile.in |
| 3992 | |
| 3993 | Version 1.6.0beta15 [March 2, 2012] |
| 3994 | Removed unused "current_text" members of png_struct and the png_free() |
| 3995 | of png_ptr->current_text from pngread.c |
| 3996 | Rewrote pngstest.c for substantial speed improvement. |
| 3997 | Fixed transparent pixel and 16-bit rgb tests in pngstest and removed a |
| 3998 | spurious check in pngwrite.c |
| 3999 | Added PNG_IMAGE_FLAG_FAST for the benefit of applications that store |
| 4000 | intermediate files, or intermediate in-memory data, while processing |
| 4001 | image data with the simplified API. The option makes the files larger |
| 4002 | but faster to write and read. pngstest now uses this by default; this |
| 4003 | can be disabled with the --slow option. |
| 4004 | Improved pngstest fine tuning of error numbers, new test file generator. |
| 4005 | The generator generates images that test the full range of sample values, |
| 4006 | allow the error numbers in pngstest to be tuned and checked. makepng |
| 4007 | also allows generation of images with extra chunks, although this is |
| 4008 | still work-in-progress. |
| 4009 | Added check for invalid palette index while reading. |
| 4010 | Fixed some bugs in ICC profile writing. The code should now accept |
| 4011 | all potentially valid ICC profiles and reject obviously invalid ones. |
| 4012 | It now uses png_error() to do so rather than casually writing a PNG |
| 4013 | without the necessary color data. |
| 4014 | Removed whitespace from the end of lines in all source files and scripts. |
| 4015 | |
| 4016 | Version 1.6.0beta16 [March 6, 2012] |
| 4017 | Relocated palette-index checking function from pngrutil.c to pngtrans.c |
| 4018 | Added palette-index checking while writing. |
| 4019 | Changed png_inflate() and calling routines to avoid overflow problems. |
| 4020 | This is an intermediate check-in that solves the immediate problems and |
| 4021 | introduces one performance improvement (avoiding a copy via png_ptr->zbuf.) |
| 4022 | Further changes will be made to make ICC profile handling more secure. |
| 4023 | Fixed build warnings (MSVC, GCC, GCC v3). Cygwin GCC with default options |
| 4024 | declares 'index' as a global, causing a warning if it is used as a local |
| 4025 | variable. GCC 64-bit warns about assigning a (size_t) (unsigned 64-bit) |
| 4026 | to an (int) (signed 32-bit). MSVC, however, warns about using the |
| 4027 | unary '-' operator on an unsigned value (even though it is well defined |
| 4028 | by ANSI-C to be ~x+1). The padding calculation was changed to use a |
| 4029 | different method. Removed the tests on png_ptr->pass. |
| 4030 | Added contrib/libtests/tarith.c to test internal arithmetic functions from |
| 4031 | png.c. This is a libpng maintainer program used to validate changes to the |
| 4032 | internal arithmetic functions. |
| 4033 | Made read 'inflate' handling like write 'deflate' handling. The read |
| 4034 | code now claims and releases png_ptr->zstream, like the write code. |
| 4035 | The bug whereby the progressive reader failed to release the zstream |
| 4036 | is now fixed, all initialization is delayed, and the code checks for |
| 4037 | changed parameters on deflate rather than always calling |
| 4038 | deflatedEnd/deflateInit. |
| 4039 | Validate the zTXt strings in pngvalid. |
| 4040 | Added code to validate the windowBits value passed to deflateInit2(). |
| 4041 | If the call to deflateInit2() is wrong a png_warning will be issued |
| 4042 | (in fact this is harmless, but the PNG data produced may be sub-optimal). |
| 4043 | |
| 4044 | Version 1.6.0beta17 [March 10, 2012] |
| 4045 | Fixed PNG_LIBPNG_BUILD_BASE_TYPE definition. |
| 4046 | Reject all iCCP chunks after the first, even if the first one is invalid. |
| 4047 | Deflate/inflate was reworked to move common zlib calls into single |
| 4048 | functions [rw]util.c. A new shared keyword check routine was also added |
| 4049 | and the 'zbuf' is no longer allocated on progressive read. It is now |
| 4050 | possible to call png_inflate() incrementally. |
| 4051 | If benign errors are disabled use maximum window on ancilliary inflate. |
| 4052 | This works round a bug introduced in 1.5.4 where compressed ancillary |
| 4053 | chunks could end up with a too-small windowBits value in the deflate |
| 4054 | header. |
| 4055 | |
| 4056 | Version 1.6.0beta18 [March 16, 2012] |
| 4057 | Issue a png_benign_error() instead of png_warning() about bad palette index. |
| 4058 | In pngtest, treat benign errors as errors if "-strict" is present. |
| 4059 | Fixed an off-by-one error in the palette index checking function. |
| 4060 | Fixed a compiler warning under Cygwin (Windows-7, 32-bit system) |
| 4061 | Revised example.c to put text strings in a temporary character array |
| 4062 | instead of directly assigning string constants to png_textp members. |
| 4063 | This avoids compiler warnings when -Wwrite-strings is enabled. |
| 4064 | Added output flushing to aid debugging under Visual Studio. Unfortunately |
| 4065 | this is necessary because the VS2010 output window otherwise simply loses |
| 4066 | the error messages on error (they weren't flushed to the window before |
| 4067 | the process exited, apparently!) |
| 4068 | Added configuration support for benign errors and changed the read |
| 4069 | default. Also changed some warnings in the iCCP and sRGB handling |
| 4070 | from to benign errors. Configuration now makes read benign |
| 4071 | errors warnings and write benign errors to errors by default (thus |
| 4072 | changing the behavior on read). The simplified API always forces |
| 4073 | read benign errors to warnings (regardless of the system default, unless |
| 4074 | this is disabled in which case the simplified API can't be built.) |
| 4075 | |
| 4076 | Version 1.6.0beta19 [March 18, 2012] |
| 4077 | Work around for duplicate row start calls; added warning messages. |
| 4078 | This turns on PNG_FLAG_DETECT_UNINITIALIZED to detect app code that |
| 4079 | fails to call one of the 'start' routines (not enabled in libpng-1.5 |
| 4080 | because it is technically an API change, since it did normally work |
| 4081 | before.) It also makes duplicate calls to png_read_start_row (an |
| 4082 | internal function called at the start of the image read) benign, as |
| 4083 | they were before changes to use png_inflate_claim. Somehow webkit is |
| 4084 | causing this to happen; this is probably a mis-feature in the zlib |
| 4085 | changes so this commit is only a work-round. |
| 4086 | Removed erroneous setting of DETECT_UNINITIALIZED and added more |
| 4087 | checks. The code now does a png_error if an attempt is made to do the |
| 4088 | row initialization twice; this is an application error and it has |
| 4089 | serious consequences because the transform data in png_struct is |
| 4090 | changed by each call. |
| 4091 | Added application error reporting and added chunk names to read |
| 4092 | benign errors; also added --strict to pngstest - not enabled |
| 4093 | yet because a warning is produced. |
| 4094 | Avoid the double gamma correction warning in the simplified API. |
| 4095 | This allows the --strict option to pass in the pngstest checks |
| 4096 | |
| 4097 | Version 1.6.0beta20 [March 29, 2012] |
| 4098 | Changed chunk handler warnings into benign errors, incrementally load iCCP |
| 4099 | Added checksum-icc.c to contrib/tools |
| 4100 | Prevent PNG_EXPAND+PNG_SHIFT doing the shift twice. |
| 4101 | Recognize known sRGB ICC profiles while reading; prefer writing the |
| 4102 | iCCP profile over writing the sRGB chunk, controlled by the |
| 4103 | PNG_sRGB_PROFILE_CHECKS option. |
| 4104 | Revised png_set_text_2() to avoid potential memory corruption (fixes |
| 4105 | CVE-2011-3048, also known as CVE-2012-3425). |
| 4106 | |
| 4107 | Version 1.6.0beta21 [April 27, 2012] |
| 4108 | Revised scripts/makefile.darwin: use system zlib; remove quotes around |
| 4109 | architecture list; add missing ppc architecture; add architecture options |
| 4110 | to shared library link; don't try to create a shared lib based on missing |
| 4111 | RELEASE variable. |
| 4112 | Enable png_set_check_for_invalid_index() for both read and write. |
| 4113 | Removed #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED in pngpriv.h around |
| 4114 | declaration of png_handle_unknown(). |
| 4115 | Added -lssp_nonshared in a comment in scripts/makefile.freebsd |
| 4116 | and changed deprecated NOOBJ and NOPROFILE to NO_OBJ and NO_PROFILE. |
| 4117 | |
| 4118 | Version 1.6.0beta22 [May 23, 2012] |
| 4119 | Removed need for -Wno-cast-align with clang. clang correctly warns on |
| 4120 | alignment increasing pointer casts when -Wcast-align is passed. This |
| 4121 | fixes the cases that clang warns about either by eliminating the |
| 4122 | casts from png_bytep to png_uint_16p (pngread.c), or, for pngrutil.c |
| 4123 | where the cast is previously verified or pngstest.c where it is OK, by |
| 4124 | introducing new png_aligncast macros to do the cast in a way that clang |
| 4125 | accepts. |
| 4126 | |
| 4127 | Version 1.6.0beta23 [June 6, 2012] |
| 4128 | Revised CMakeLists.txt to not attempt to make a symlink under mingw. |
| 4129 | Made fixes for new optimization warnings from gcc 4.7.0. The compiler |
| 4130 | performs an optimization which is safe; however it then warns about it. |
| 4131 | Changing the type of 'palette_number' in pngvalid.c removes the warning. |
| 4132 | Do not depend upon a GCC feature macro being available for use in generating |
| 4133 | the linker mapfile symbol prefix. |
| 4134 | Improved performance of new do_check_palette_indexes() function (only |
| 4135 | update the value when it actually increases, move test for whether |
| 4136 | the check is wanted out of the function. |
| 4137 | |
| 4138 | Version 1.6.0beta24 [June 7, 2012] |
| 4139 | Don't check palette indexes if num_palette is 0 (as it can be in MNG files). |
| 4140 | |
| 4141 | Version 1.6.0beta25 [June 16, 2012] |
| 4142 | Revised png_set_keep_unknown_chunks() so num_chunks < 0 means ignore all |
| 4143 | unknown chunks and all known chunks except for IHDR, PLTE, tRNS, IDAT, |
| 4144 | and IEND. Previously it only meant ignore all unknown chunks, the |
| 4145 | same as num_chunks == 0. Revised png_image_skip_unused_chunks() to |
| 4146 | provide a list of chunks to be processed instead of a list of chunks to |
| 4147 | ignore. Revised contrib/gregbook/readpng2.c accordingly. |
| 4148 | |
| 4149 | Version 1.6.0beta26 [July 10, 2012] |
| 4150 | Removed scripts/makefile.cegcc from the *.zip and *.7z distributions; it |
| 4151 | depends on configure, which is not included in those archives. |
| 4152 | Moved scripts/chkfmt to contrib/tools. |
| 4153 | Changed "a+w" to "u+w" in Makefile.in to fix CVE-2012-3386. |
| 4154 | |
| 4155 | Version 1.6.0beta27 [August 11, 2012] |
| 4156 | Do not compile PNG_DEPRECATED, PNG_ALLOC and PNG_PRIVATE when __GNUC__ < 3. |
| 4157 | Do not use __restrict when GNUC is <= 3.1 |
| 4158 | Removed references to png_zalloc() and png_zfree() from the manual. |
| 4159 | Fixed configurations where floating point is completely disabled. Because |
| 4160 | of the changes to support symbol prefixing PNG_INTERNAL_FUNCTION declares |
| 4161 | floating point APIs during libpng builds even if they are completely |
| 4162 | disabled. This requires the png floating point types (png_double*) to be |
| 4163 | declared even though the functions are never actually defined. This |
| 4164 | change provides a dummy definition so that the declarations work, yet any |
| 4165 | implementation will fail to compile because of an incomplete type. |
| 4166 | Re-eliminated the use of strcpy() in pngtest.c. An unncessary use of |
| 4167 | strcpy() was accidentally re-introduced in libpng16; this change replaces |
| 4168 | it with strncpy(). |
| 4169 | Eliminated use of png_sizeof(); use sizeof() instead. |
| 4170 | Use a consistent style for (sizeof type) and (sizeof (array)) |
| 4171 | Cleanup of png_set_filler(). This function does very different things on |
| 4172 | read and write. In libpng 1.6 the two cases can be distinguished and |
| 4173 | considerable code cleanup, and extra error checking, is possible. This |
| 4174 | makes calls on the write side that have no effect be ignored with a |
| 4175 | png_app_error(), which can be disabled in the app using |
| 4176 | png_set_benign_errors(), and removes the spurious use of usr_channels |
| 4177 | on the read side. |
| 4178 | Insist on autotools 1.12.1 for git builds because there are security issues |
| 4179 | with 1.12 and insisting on anything less would allow 1.12 to be used. |
| 4180 | Removed info_ptr->signature[8] from WRITE-only builds. |
| 4181 | Add some conditions for compiling png_fixed(). This is a small function |
| 4182 | but it requires "-lm" on some platforms. |
| 4183 | Cause pngtest --strict to fail on any warning from libpng (not just errors) |
| 4184 | and cause it not to fail at the comparison step if libpng lacks support |
| 4185 | for writing chunks that it reads from the input (currently only implemented |
| 4186 | for compressed text chunks). |
| 4187 | Make all three "make check" test programs work without READ or WRITE support. |
| 4188 | Now "make check" will succeed even if libpng is compiled with -DPNG_NO_READ |
| 4189 | or -DPNG_NO_WRITE. The tests performed are reduced, but the basic reading |
| 4190 | and writing of a PNG file is always tested by one or more of the tests. |
| 4191 | Consistently use strlen(), memset(), memcpy(), and memcmp() instead of the |
| 4192 | png_strlen(), png_memset(), png_memcpy(), and png_memcmp() macros. |
| 4193 | Removed the png_sizeof(), png_strlen(), png_memset(), png_memcpy(), and |
| 4194 | png_memcmp() macros. |
| 4195 | Work around gcc 3.x and Microsoft Visual Studio 2010 complaints. Both object |
| 4196 | to the split initialization of num_chunks. |
| 4197 | |
| 4198 | Version 1.6.0beta28 [August 29, 2012] |
| 4199 | Unknown handling fixes and clean up. This adds more correct option |
| 4200 | control of the unknown handling, corrects the pre-existing bug where |
| 4201 | the per-chunk 'keep' setting is ignored and makes it possible to skip |
| 4202 | IDAT chunks in the sequential reader (broken in earlier 1.6 versions). |
| 4203 | There is a new test program, test-unknown.c, which is a work in progress |
| 4204 | (not currently part of the test suite). Comments in the header files now |
| 4205 | explain how the unknown handling works. |
| 4206 | Allow fine grain control of unknown chunk APIs. This change allows |
| 4207 | png_set_keep_unknown_chunks() to be turned off if not required and causes |
| 4208 | both read and write to behave appropriately (on read this is only possible |
| 4209 | if the user callback is used to handle unknown chunks). The change |
| 4210 | also removes the support for storing unknown chunks in the info_struct |
| 4211 | if the only unknown handling enabled is via the callback, allowing libpng |
| 4212 | to be configured with callback reading and none of the unnecessary code. |
| 4213 | Corrected fix for unknown handling in pngtest. This reinstates the |
| 4214 | libpng handling of unknown chunks other than vpAg and sTER (including |
| 4215 | unsafe-to-copy chunks which were dropped before) and eliminates the |
| 4216 | repositioning of vpAg and sTER in pngtest.png by changing pngtest.png |
| 4217 | (so the chunks are where libpng would put them). |
| 4218 | Added "tunknown" test and corrected a logic error in png_handle_unknown() |
| 4219 | when SAVE support is absent. Moved the shell test scripts for |
| 4220 | contrib/libtests from the libpng top directory to contrib/libtests. |
| 4221 | png_handle_unknown() must always read or skip the chunk, if |
| 4222 | SAVE_UNKNOWN_CHUNKS is turned off *and* the application does not set |
| 4223 | a user callback an unknown chunk will not be read, leading to a read |
| 4224 | error, which was revealed by the "tunknown" test. |
| 4225 | Cleaned up and corrected ICC profile handling. |
| 4226 | contrib/libtests/makepng: corrected 'rgb' and 'gray' cases. profile_error |
| 4227 | messages could be truncated; made a correct buffer size calculation and |
| 4228 | adjusted pngerror.c appropriately. png_icc_check_* checking improved; |
| 4229 | changed the functions to receive the correct color type of the PNG on read |
| 4230 | or write and check that it matches the color space of the profile (despite |
| 4231 | what the comments said before, there is danger in assuming the app will |
| 4232 | cope correctly with an RGB profile on a grayscale image and, since it |
| 4233 | violates the PNG spec, allowing it is certain to produce inconsistent |
| 4234 | app behavior and might even cause app crashes.) Check that profiles |
| 4235 | contain the tags needed to process the PNG (tags all required by the ICC |
| 4236 | spec). Removed unused PNG_STATIC from pngpriv.h. |
| 4237 | |
| 4238 | Version 1.6.0beta29 [September 4, 2012] |
| 4239 | Fixed the simplified API example programs to add the *colormap parameter |
| 4240 | to several of he API and improved the error message if the version field |
| 4241 | is not set. |
| 4242 | Added contrib/examples/* to the *.zip and *.7z distributions. |
| 4243 | Updated simplified API synopses and description of the png_image structure |
| 4244 | in the manual. |
| 4245 | Made makepng and pngtest produce identical PNGs, add "--relaxed" option |
| 4246 | to pngtest. The "--relaxed" option turns off the benign errors that are |
| 4247 | enabled by default in pre-RC builds. makepng can now write ICC profiles |
| 4248 | where the length has not been extended to a multiple of 4, and pngtest |
| 4249 | now intercepts all libpng errors, allowing the previously-introduced |
| 4250 | "--strict test" on no warnings to actually work. |
| 4251 | Improved ICC profile handling including cHRM chunk generation and fixed |
| 4252 | Cygwin+MSVC build errors. The ICC profile handling now includes more |
| 4253 | checking. Several errors that caused rejection of the profile are now |
| 4254 | handled with a warning in such a way that the invalid profiles will be |
| 4255 | read by default in release (but not pre-RC) builds but will not be |
| 4256 | written by default. The easy part of handling the cHRM chunk is written, |
| 4257 | where the ICC profile contains the required data. The more difficult |
| 4258 | part plus guessing a gAMA value requires code to pass selected RGB values |
| 4259 | through the profile. |
| 4260 | |
| 4261 | Version 1.6.0beta30 [October 24, 2012] |
| 4262 | Changed ICC profile matrix/vector types to not depend on array type rules. |
| 4263 | By the ANSI-C standard the new types should be identical to the previous |
| 4264 | versions, and all known versions of gcc tested with the previous versions |
| 4265 | except for GCC-4.2.1 work with this version. The change makes the ANSI-C |
| 4266 | rule that const applied to an array of elements applies instead to the |
| 4267 | elements in the array moot by explicitly applying const to the base |
| 4268 | elements of the png_icc_matrix and png_icc_vector types. The accidental |
| 4269 | (harmless) 'const' previously applied to the parameters of two of the |
| 4270 | functions have also been removed. |
| 4271 | Added a work around for GCC 4.2 optimization bug. |
| 4272 | Marked the broken (bad white point) original HP sRGB profiles correctly and |
| 4273 | correct comments. |
| 4274 | Added -DZ_SOLO to contrib/pngminim/*/makefile to work with zlib-1.2.7 |
| 4275 | Use /MDd for vstudio debug builds. Also added pngunkown to the vstudio |
| 4276 | builds, fixed build errors and corrected a minor exit code error in |
| 4277 | pngvalid if the 'touch' file name is invalid. |
| 4278 | Add updated WARNING file to projects/vstudio from libpng 1.5/vstudio |
| 4279 | Fixed build when using #define PNG_NO_READ_GAMMA in png_do_compose() in |
| 4280 | pngrtran.c (Domani Hannes). |
| 4281 | |
| 4282 | Version 1.6.0beta31 [November 1, 2012] |
| 4283 | Undid the erroneous change to vstudio/pngvalid build in libpng-1.6.0beta30. |
| 4284 | Made pngvalid so that it will build outside the libpng source tree. |
| 4285 | Made builds -DPNG_NO_READ_GAMMA compile (the unit tests still fail). |
| 4286 | Made PNG_NO_READ_GAMMA switch off interfaces that depend on READ_GAMMA. |
| 4287 | Prior to 1.6.0 switching off READ_GAMMA did unpredictable things to the |
| 4288 | interfaces that use it (specifically, png_do_background in 1.4 would |
| 4289 | simply display composite for grayscale images but do composition |
| 4290 | with the incorrect arithmetic for color ones). In 1.6 the semantic |
| 4291 | of -DPNG_NO_READ_GAMMA is changed to simply disable any interface that |
| 4292 | depends on it; this obliges people who set it to consider whether they |
| 4293 | really want it off if they happen to use any of the interfaces in |
| 4294 | question (typically most users who disable it won't). |
| 4295 | Fixed GUIDs in projects/vstudio. Some were duplicated or missing, |
| 4296 | resulting in VS2010 having to update the files. |
| 4297 | Removed non-working ICC profile support code that was mostly added to |
| 4298 | libpng-1.6.0beta29 and beta30. There was too much code for too little |
| 4299 | gain; implementing full ICC color correction may be desireable but is left |
| 4300 | up to applications. |
| 4301 | |
| 4302 | Version 1.6.0beta32 [November 25, 2012] |
| 4303 | Fixed an intermittent SEGV in pngstest due to an uninitialized array element. |
| 4304 | Added the ability for contrib/libtests/makepng.c to make a PNG with just one |
| 4305 | color. This is useful for debugging pngstest color inaccuracy reports. |
| 4306 | Fixed error checking in the simplified write API (Olaf van der Spek) |
| 4307 | Made png_user_version_check() ok to use with libpng version 1.10.x and later. |
| 4308 | |
| 4309 | Version 1.6.0beta33 [December 15, 2012] |
| 4310 | Fixed typo in png.c (PNG_SET_CHUNK_MALLOC_MAX should be PNG_CHUNK_MALLOC_MAX) |
| 4311 | that causes the MALLOC_MAX limit not to work (John Bowler) |
| 4312 | Change png_warning() to png_app_error() in pngwrite.c and comment the |
| 4313 | fall-through condition. |
| 4314 | Change png_warning() to png_app_warning() in png_write_tRNS(). |
| 4315 | Rearranged the ARM-NEON optimizations: Isolated the machine specific code |
| 4316 | to the hardware subdirectory and added comments to pngrutil.c so that |
| 4317 | implementors of other optimizations know what to do. |
| 4318 | Fixed cases of unquoted DESTDIR in Makefile.am |
| 4319 | Rebuilt Makefile.in, etc., with autoconf-2.69 and automake-1.12.5. |
| 4320 | |
| 4321 | Version 1.6.0beta34 [December 19, 2012] |
| 4322 | Cleaned up whitespace in the synopsis portion of the manpage "libpng.3" |
| 4323 | Disassembled the version number in scripts/options.awk (necessary for |
| 4324 | building on SunOs). |
| 4325 | |
| 4326 | Version 1.6.0beta35 [December 23, 2012] |
| 4327 | Made default Zlib compression settings be configurable. This adds #defines to |
| 4328 | pnglibconf.h to control the defaults. |
| 4329 | Fixed Windows build issues, enabled ARM compilation. Various warnings issued |
| 4330 | by earlier versions of GCC fixed for Cygwin and Min/GW (which both use old |
| 4331 | GCCs.) ARM support is enabled by default in zlib.props (unsupported by |
| 4332 | Microsoft) and ARM compilation is made possible by deleting the check for |
| 4333 | x86. The test programs cannot be run because they are not signed. |
| 4334 | |
| 4335 | Version 1.6.0beta36 [January 2, 2013] |
| 4336 | Discontinued distributing libpng-1.x.x.tar.bz2. |
| 4337 | Discontinued distributing libpng-1.7.0-1.6.0-diff.txt and similar. |
| 4338 | Rebuilt configure with autoconf-2.69 (inadvertently not done in beta33) |
| 4339 | Fixed 'make distcheck' on SUN OS - libpng.so was not being removed |
| 4340 | |
| 4341 | Version 1.6.0beta37 [January 10, 2013] |
| 4342 | Fixed conceivable but difficult to repro overflow. Also added two test |
| 4343 | programs to generate and test a PNG which should have the problem. |
| 4344 | |
| 4345 | Version 1.6.0beta39 [January 19, 2013] |
| 4346 | Again corrected attempt at overflow detection in png_set_unknown_chunks(). |
| 4347 | Added overflow detection in png_set_sPLT() and png_set_text_2(). |
| 4348 | |
| 4349 | Version 1.6.0beta40 [January 20, 2013] |
| 4350 | Use consistent handling of overflows in text, sPLT and unknown png_set_* APIs |
| 4351 | |
| 4352 | Version 1.6.0rc01 [January 26, 2013] |
| 4353 | No changes. |
| 4354 | |
| 4355 | Version 1.6.0rc02 [February 4, 2013] |
| 4356 | Added png_get_palette_max() function. |
| 4357 | |
| 4358 | Version 1.6.0rc03 [February 5, 2013] |
| 4359 | Fixed the png_get_palette_max API. |
| 4360 | |
| 4361 | Version 1.6.0rc04 [February 7, 2013] |
| 4362 | Turn serial tests back on (recently turned off by autotools upgrade). |
| 4363 | |
| 4364 | Version 1.6.0rc05 [February 8, 2013] |
| 4365 | Update manual about png_get_palette_max(). |
| 4366 | |
| 4367 | Version 1.6.0rc06 [February 9, 2013] |
| 4368 | Fixed missing dependency in --prefix builds The intermediate |
| 4369 | internal 'prefix.h' file can only be generated correctly after |
| 4370 | pnglibconf.h, however the dependency was not in Makefile.am. The |
| 4371 | symptoms are unpredictable depending on the order make chooses to |
| 4372 | build pngprefix.h and pnglibconf.h, often the error goes unnoticed |
| 4373 | because there is a system pnglibconf.h to use instead. |
| 4374 | |
| 4375 | Version 1.6.0rc07 [February 10, 2013] |
| 4376 | Enclosed the new png_get_palette_max in #ifdef PNG_GET_PALETTE_MAX_SUPPORTED |
| 4377 | block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly. |
| 4378 | |
| 4379 | Version 1.6.0rc08 [February 10, 2013] |
| 4380 | Fix typo in png.h #ifdef |
| 4381 | |
| 4382 | Version 1.6.0 [February 14, 2013] |
| 4383 | No changes. |
| 4384 | |
| 4385 | Version 1.6.1beta01 [February 16, 2013] |
| 4386 | Made symbol prefixing work with the ARM neon optimizations. Also allow |
| 4387 | pngpriv.h to be included for preprocessor definitions only, so it can |
| 4388 | be used in non-C/C++ files. Back ported from libpng 1.7. |
| 4389 | Made sRGB check numbers consistent. |
| 4390 | Ported libpng 1.5 options.awk/dfn file handling to 1.6, fixed one bug. |
| 4391 | Removed cc -E workround, corrected png_get_palette_max API Tested on |
| 4392 | SUN OS cc 5.9, which demonstrates the tokenization problem previously |
| 4393 | avoided by using /lib/cpp. Since all .dfn output is now protected in |
| 4394 | double quotes unless it is to be macro substituted the fix should |
| 4395 | work everywhere. |
| 4396 | Enabled parallel tests - back ported from libpng-1.7. |
| 4397 | scripts/pnglibconf.dfa formatting improvements back ported from libpng17. |
| 4398 | Fixed a race condition in the creation of the build 'scripts' directory |
| 4399 | while building with a parallel make. |
| 4400 | Use approved/supported Android method to check for NEON, use Linux/POSIX |
| 4401 | 1003.1 API to check /proc/self/auxv avoiding buffer allocation and other |
| 4402 | library calls (ported from libpng15). |
| 4403 | |
| 4404 | Version 1.6.1beta02 [February 19, 2013] |
| 4405 | Use parentheses more consistently in "#if defined(MACRO)" tests. |
| 4406 | Folded long lines. |
| 4407 | Reenabled code to allow zero length PLTE chunks for MNG. |
| 4408 | |
| 4409 | Version 1.6.1beta03 [February 22, 2013] |
| 4410 | Fixed ALIGNED_MEMORY support. |
| 4411 | Allow run-time ARM NEON checking to be disabled. A new configure option: |
| 4412 | --enable-arm-neon=always will stop the run-time checks. New checks |
| 4413 | within arm/arm_init.c will cause the code not to be compiled unless |
| 4414 | __ARM_NEON__ is set. This should make it fail safe (if someone asks |
| 4415 | for it on then the build will fail if it can't be done.) |
| 4416 | Updated the INSTALL document. |
| 4417 | |
| 4418 | Version 1.6.1beta04 [February 27, 2013] |
| 4419 | Revised INSTALL to recommend using CPPFLAGS instead of INCLUDES. |
| 4420 | Revised scripts/makefile.freebsd to respect ZLIBLIB and ZLIBINC. |
| 4421 | Revised scripts/dfn.awk to work with the buggy MSYS awk that has trouble |
| 4422 | with CRLF line endings. |
| 4423 | |
| 4424 | Version 1.6.1beta05 [March 1, 2013] |
| 4425 | Avoid a possible memory leak in contrib/gregbook/readpng.c |
| 4426 | |
| 4427 | Version 1.6.1beta06 [March 4, 2013] |
| 4428 | Better documentation of unknown handling API interactions. |
| 4429 | Corrected Android builds and corrected libpng.vers with symbol |
| 4430 | prefixing This adds an API to set optimization options externally, |
| 4431 | providing an alternative and general solution for the non-portable |
| 4432 | run-time tests used by the ARM Neon code. It also makes those tests |
| 4433 | compile and link on Android. |
| 4434 | The order of settings vs options in pnglibconf.h is reversed to allow |
| 4435 | settings to depend on options and options can now set (or override) the |
| 4436 | defaults for settings. |
| 4437 | |
| 4438 | Version 1.6.1beta07 [March 7, 2013] |
| 4439 | Corrected simplified API default gamma for color-mapped output, added |
| 4440 | a flag to change default. In 1.6.0 when the simplified API was used |
| 4441 | to produce color-mapped output from an input image with no gamma |
| 4442 | information the gamma assumed for the input could be different from |
| 4443 | that assumed for non-color-mapped output. In particular 16-bit depth |
| 4444 | input files were assumed to be sRGB encoded, whereas in the 'direct' |
| 4445 | case they were assumed to have linear data. This was an error. The |
| 4446 | fix makes the simplified API treat all input files the same way and |
| 4447 | adds a new flag to the png_image::flags member to allow the |
| 4448 | application/user to specify that 16-bit files contain sRGB data |
| 4449 | rather than the default linear. |
| 4450 | Fixed bugs in the pngpixel and makepng test programs. |
| 4451 | |
| 4452 | Version 1.6.1beta08 [March 7, 2013] |
| 4453 | Fixed CMakelists.txt to allow building a single variant of the library |
| 4454 | (Claudio Bley): |
| 4455 | Introduced a PNG_LIB_TARGETS variable that lists all activated library |
| 4456 | targets. It is an error if this variable ends up empty, ie. you have |
| 4457 | to build at least one library variant. |
| 4458 | Made the *_COPY targets only depend on library targets actually being build. |
| 4459 | Use PNG_LIB_TARGETS to unify a code path. |
| 4460 | Changed the CREATE_SYMLINK macro to expect the full path to a file as the |
| 4461 | first argument. When symlinking the filename component of that path is |
| 4462 | determined and used as the link target. |
| 4463 | Use copy_if_different in the CREATE_SYMLINK macro. |
| 4464 | |
| 4465 | Version 1.6.1beta09 [March 13, 2013] |
| 4466 | Eliminated two warnings from the Intel C compiler. The warnings are |
| 4467 | technically valid, although a reasonable treatment of division would |
| 4468 | show it to be incorrect. |
| 4469 | |
| 4470 | Version 1.6.1rc01 [March 21, 2013] |
| 4471 | No changes. |
| 4472 | |
| 4473 | Version 1.6.1 [March 28, 2013] |
| 4474 | No changes. |
| 4475 | |
| 4476 | Version 1.6.2beta01 [April 14, 2013] |
| 4477 | Updated documentation of 1.5.x to 1.6.x changes in iCCP chunk handling. |
| 4478 | Fixed incorrect warning of excess deflate data. End condition - the |
| 4479 | warning would be produced if the end of the deflate stream wasn't read |
| 4480 | in the last row. The warning is harmless. |
| 4481 | Corrected the test on user transform changes on read. It was in the |
| 4482 | png_set of the transform function, but that doesn't matter unless the |
| 4483 | transform function changes the rowbuf size, and that is only valid if |
| 4484 | transform_info is called. |
| 4485 | Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c |
| 4486 | (Flavio Medeiros). |
| 4487 | Corrected length written to uncompressed iTXt chunks (Samuli Suominen). |
| 4488 | |
| 4489 | Version 1.6.2rc01 [April 18, 2013] |
| 4490 | Added contrib/tools/fixitxt.c, to repair the erroneous iTXt chunk length |
| 4491 | written by libpng-1.6.0 and 1.6.1. |
| 4492 | Disallow storing sRGB information when the sRGB is not supported. |
| 4493 | |
| 4494 | Version 1.6.2rc02 [April 18, 2013] |
| 4495 | Merge pngtest.c with libpng-1.7.0 |
| 4496 | |
| 4497 | Version 1.6.2rc03 [April 22, 2013] |
| 4498 | Trivial spelling cleanup. |
| 4499 | |
| 4500 | Version 1.6.2rc04 and 1.6.2rc05 [omitted] |
| 4501 | |
| 4502 | Version 1.6.2rc06 [April 24, 2013] |
| 4503 | Reverted to version 1.6.2rc03. Recent changes to arm/neon support |
| 4504 | have been ported to libpng-1.7.0beta09 and will reappear in version |
| 4505 | 1.6.3beta01. |
| 4506 | |
| 4507 | Version 1.6.2 [April 25, 2013] |
| 4508 | |
| 4509 | Send comments/corrections/commendations to png-mng-implement at lists.sf.net |
| 4510 | (subscription required; visit |
| 4511 | https://lists.sourceforge.net/lists/listinfo/png-mng-implement |
| 4512 | to subscribe) |
| 4513 | or to glennrp at users.sourceforge.net |
| 4514 | |
| 4515 | Glenn R-P |
| 4516 | #endif |