lib/3rdparty/freetype/ChangeLog

   1 2010-11-28  Werner Lemberg  <wl@gnu.org>
   2
   3         * Version 2.4.4 released.
   4         =========================
   5
   6
   7         Tag sources with `VER-2-4-4'.
   8
   9         * docs/CHANGES: Updated.
  10
  11         * docs/VERSION.DLL: Update documentation and bump version number to
  12         2.4.4
  13
  14         * README, Jamfile (RefDoc),
  15         builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
  16         builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
  17         builds/win32/visualc/freetype.dsp,
  18         builds/win32/visualc/freetype.vcproj,
  19         builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
  20         builds/win32/visualce/freetype.vcproj,
  21         builds/win32/visualce/index.html,
  22         builds/wince/vc2005-ce/freetype.vcproj,
  23         builds/wince/vc2005-ce/index.html,
  24         builds/wince/vc2008-ce/freetype.vcproj,
  25         builds/wince/vc2008-ce/index.html: s/2.4.3/2.4.4/, s/243/244/.
  26
  27         * include/freetype/freetype.h (FREETYPE_PATCH): Set to 4.
  28
  29         * builds/unix/configure.raw (version_info): Set to 12:2:6.
  30
  31 2010-11-28  Alexei Podtelezhnikov  <apodtele@gmail.com>
  32
  33         [ftsmooth]: Minor code simplification.
  34
  35         * src/smooth/ftgrays (gray_render_cubic): Do only one comparison
  36         instead of two.
  37
  38 2010-11-26  Johnson Y. Yan  <yinsen_yan@foxitsoftware.com>
  39
  40         [truetype] Better multi-threading support.
  41
  42         * src/truetype/ttinterp.c (TT_Load_Context): Reset glyph zone
  43         references.
  44
  45 2010-11-23  John Tytgat  <John.Tytgat@esko.com>
  46
  47         * src/psaux/t1decode.c (t1_decoder_parse_charstring): Expand
  48         start_point, check_points, add_point, add_point1, close_contour
  49         macros.
  50         Remove add_contour macro.
  51         Return error code from t1_builder_start_point and
  52         t1_builder_check_points when there was one (instead of returning 0).
  53
  54 2010-11-22  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
  55
  56         [truetype] Identify the tricky fonts by cvt/fpgm/prep checksums.
  57         Some Latin TrueType fonts are still expected to be unhinted.
  58         Fix Savannah bug #31645.
  59
  60         * src/truetype/ttobjs.c (tt_check_trickyness): Divided to...
  61         (tt_check_trickyness_family): this checking family name, and
  62         (tt_check_trickyness_sfnt_ids): this checking cvt/fpgm/prep.
  63         (tt_get_sfnt_checksum): Function to retrieve the sfnt checksum
  64         for specified subtable even if cleared by lazy PDF generators.
  65         (tt_synth_sfnt_checksum): Function to calculate the checksum.
  66
  67 2010-11-18  Werner Lemberg  <wl@gnu.org>
  68
  69         [truetype] Fix `loca' handling for inconsistent number of glyphs.
  70         Reported by Johnson Y. Yan <yinsen_yan@foxitsoftware.com>.
  71
  72         * src/truetype/ttpload.c (tt_face_load_loca): While sanitizing,
  73         handle case where `loca' is the last table in the font.
  74
  75 2010-11-18  Werner Lemberg  <wl@gnu.org>
  76
  77         [sfnt] Ignore all errors while loading `OS/2' table.
  78         Suggested by Johnson Y. Yan <yinsen_yan@foxitsoftware.com>.
  79
  80         * src/sfnt/sfobjs.c (sfnt_load_face): Do it.
  81
  82 2010-11-18  Johnson Y. Yan  <yinsen_yan@foxitsoftware.com>
  83
  84         [type1] Fix matrix normalization.
  85
  86         * src/type1/t1load.c (parse_font_matrix): Handle sign of scaling
  87         factor.
  88
  89 2010-11-18  Werner Lemberg  <wl@gnu.org>
  90
  91         [type1] Improve guard against malformed data.
  92         Based on a patch submitted by Johnson Y. Yan
  93         <yinsen_yan@foxitsoftware.com>
  94
  95         * src/type1/t1load.c (read_binary_data): Check `size'.
  96
  97 2010-11-17  Werner Lemberg  <wl@gnu.org>
  98
  99         [sfnt] While tracing, output table checksums also.
 100
 101         * src/sfnt/ttload.c (tt_face_load_font_dir): Do it.
 102
 103 2010-11-04  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 104
 105         [UVS] Fix find_variant_selector_charmap(), Savannah bug #31545.
 106
 107         Since 2010-07-04, find_variant_selector_charmap() returns
 108         the first cmap subtable always under rogue-compatible
 109         configuration, it causes NULL pointer dereference and
 110         make UVS-related functions crashed.
 111
 112         * src/base/ftobjs.c (Fix find_variant_selector_charmap):
 113         Returns UVS cmap correctly.
 114
 115 2010-11-01  Alexei Podtelezhnikov  <apodtele@gmail.com>
 116
 117         [ftsmooth] Improve rendering.
 118
 119         * src/smooth/ftsmooth.c (gray_render_conic): Since version 2.4.3,
 120         cubic deviations have been estimated _after_ UPSCALE, whereas
 121         conic ones have been evaluated _before_ UPSCALE, which produces
 122         inferior rendering results.  Fix this.
 123         Partially undo change from 2010-10-15 by using ONE_PIXEL/4; this has
 124         been tested with demo images sent to the mailing list.  See
 125
 126           http://lists.gnu.org/archive/html/freetype-devel/2010-10/msg00055.html
 127
 128         and later mails in this thread.
 129
 130 2010-10-28  Werner Lemberg  <wl@gnu.org>
 131
 132         [ftraster] Minor fixes.
 133
 134         Reported by Tom Bishop <wenlin@wenlin.com>.
 135
 136         * src/raster/ftraster.c (ULong): Remove unused typedef.
 137         (TWorker): Remove unused variable `precision_mask'.
 138
 139 2010-10-28  Werner Lemberg  <wl@gnu.org>
 140
 141         [ftraster] Fix rendering.
 142
 143         Problem reported by Tom Bishop <wenlin@wenlin.com>; see
 144         thread starting with
 145
 146           http://lists.gnu.org/archive/html/freetype/2010-10/msg00049.html
 147
 148         * src/raster/ftraster.c (Line_Up): Replace FMulDiv with SMulDiv
 149         since the involved multiplication exceeds 32 bits.
 150
 151 2010-10-25  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 152
 153         Revert a change of `_idx' type in FTC_CACHE_LOOKUP_CMP().
 154
 155         * src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Revert
 156         the type of `_idx' from FT_PtrDist (by previous change)
 157         to original FT_UFast, to match with FT_CacheRec.
 158
 159 2010-10-24  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 160
 161         [cache] Change the hash types to FT_PtrDist.
 162
 163         On LLP64 platforms (e.g. Win64), FT_ULong (32-bit)
 164         variables are inappropriate to calculate hash values
 165         from the memory address (64-bit).  The hash variables
 166         are extended from FT_ULong to FT_PtrDist and new
 167         hashing macro functions are introduced.  The hash
 168         values on 16-bit memory platforms are changed, but
 169         ILP32 and LP64 are not changed.  The hash value in
 170         the cache subsystem is not reverted to the memory
 171         address, so using signed type FT_PtrDist is safe.
 172
 173         * src/cache/ftccache.h (_FTC_FACE_ID_HASH): New hash
 174         function to replace FTC_FACE_ID_HASH() for portability.
 175         * src/cache/ftcmanag.h (FTC_SCALER_HASH): Replace
 176         FTC_FACE_ID_HASH() by _FTC_FACE_ID_HASH().
 177         * src/cache/ftccmap.c (FTC_CMAP_HASH): Ditto.
 178
 179         * src/cache/ftccache.h (FTC_NodeRec): The type of the
 180         member `hash' is changed from FT_UInt32 to FT_PtrDist.
 181
 182         * src/cache/ftccache.h (FTC_Cache_Lookup): The type of the
 183         argument `hash' is changed from FT_UInt32 to FT_PtrDist.
 184         (FTC_Cache_NewNode): Ditto.
 185         * src/cache/ftccache.c (ftc_cache_add): Ditto.
 186         (FTC_Cache_Lookup): Ditto.  (FTC_Cache_NewNode): Ditto.
 187         * src/cache/ftcglyph.h (FTC_GCache_Lookup): Ditto.
 188         * src/cache/ftcglyph.c (FTC_GCache_Lookup): Ditto.
 189
 190         * src/cache/ftcbasic.c (FTC_ImageCache_Lookup): The type
 191         of the internal variable `hash' is changed to FT_PtrDist
 192         from FT_UInt32.  (FTC_ImageCache_LookupScaler): Ditto.
 193         (FTC_SBitCache_Lookup): Ditto.
 194         (FTC_SBitCache_LookupScaler): Ditto.
 195         * src/cache/ftccmap.c (FTC_CMapCache_Lookup): Ditto.
 196         * src/cache/ftccache.h (FTC_CACHE_LOOKUP_CMP): Ditto.
 197         Also the type of the internal variable `_idx' is changed to
 198         FT_PtrDist from FT_UFast for better pointer calculation.
 199
 200 2010-10-24  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 201
 202         [cache] Hide internal macros incompatible with LLP64.
 203
 204         FT_POINTER_TO_ULONG(), FTC_FACE_ID_HASH() and
 205         FTC_IMAGE_TYPE_HASH() are enclosed by
 206         FT_CONFIG_OPTION_OLD_INTERNALS and hidden from
 207         normal clients.
 208
 209         For the history of these macros, see the investigation:
 210         http://lists.gnu.org/archive/html/freetype/2010-10/msg00022.html
 211
 212 2010-10-24  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 213
 214         Change the type of FT_MEM_VAL() from FT_ULong to FT_PtrDist.
 215
 216         On LLP64 platforms (e.g. Win64), unsigned long (32-bit)
 217         cannot cover the memory address (64-bit).  FT_MEM_VAL() is
 218         used for hashing only and not dereferred, so using signed
 219         type FT_PtrDist is safe.
 220
 221         * src/base/ftdbgmem.c (FT_MEM_VAL): Change the type of the
 222         return value from FT_ULong to FT_PtrDist.
 223         (ft_mem_table_resize): The type of hash is changed to
 224         FT_PtrDist.  (ft_mem_table_get_nodep): Ditto.
 225
 226 2010-10-24  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 227
 228         Replace "%lx" for memory address by "%p", LLP64 platforms.
 229
 230         On LLP64 platforms (e.g. Win64), long (32-bit) cannot cover
 231         the memory address (64-bit).  Also the casts from the pointer
 232         type to long int should be removed to preserve the address
 233         correctly.
 234
 235         * src/raster/ftraster.c (New_Profile): Replace "%lx" by "%p".
 236         (End_Profile) Ditto.
 237         * src/truetype/ttinterp.c (Init_Context): Ditto.
 238
 239 2010-10-15  Alexei Podtelezhnikov  <apodtele@gmail.com>
 240
 241         Fix thinko in spline flattening.
 242
 243         FT_MAX_CURVE_DEVIATION is dependent on the value of ONE_PIXEL.
 244
 245         * src/smooth/ftgrays.c (FT_MAX_CURVE_DEVIATION): Remove it and
 246         replace it everywhere with ONE_PIXEL/8.
 247
 248 2010-10-13  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 249
 250         [raccess] Skip unrequired resource access rules by Darwin VFS.
 251
 252         When a resource fork access rule by Darwin VFS could open the
 253         resource fork but no font is found in it, the rest of rules
 254         by Darwin VFS are skipped.  It reduces the warnings of the
 255         deprecated resource fork access method by recent Darwin kernel.
 256         Fix MacPorts ticket #18859:
 257                 http://trac.macports.org/ticket/18859
 258
 259         * src/base/ftobjs.c (load_face_in_embedded_rfork):
 260         When FT_Stream_New() returns FT_Err_Cannot_Open_Stream, it
 261         means that the file is possible to be fopen()-ed but zero-sized.
 262         Also there is a case that the resource fork is not zero-sized,
 263         but no supported font exists in it.  If a rule by Darwin VFS
 264         falls into such cases, there is no need to try other Darwin VFS
 265         rules anymore.  Such cases are marked by vfs_rfork_has_no_font.
 266         If it is TRUE, the Darwin VFS rules are skipped.
 267
 268 2010-10-13  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 269
 270         [raccess] Grouping resource access rules based on Darwin VFS.
 271
 272         MacOS X/Darwin kernel supports a few tricky methods to access
 273         a resource fork via ANSI C or POSIX interface.  Current resource
 274         fork accessor tries all possible methods to support all kernels.
 275         But if a method could open a resource fork but no font is found,
 276         there is no need to try other methods older than tested method.
 277         To determine whether the rule index is for Darwin VFS, a local
 278         function ftrfork.c::raccess_rule_by_darwin_vfs() is introduced.
 279         To use this function in ftobjs.c etc but it should be inlined,
 280         it is exposed by ftbase.h.
 281
 282         * src/base/ftrfork.c (FT_RFork_Rule): New enum type to identify
 283         the rules to access the resource fork.
 284         (raccess_guess_rec): New structure to bind the rule function and
 285         rule enum type.
 286         (FT_Raccess_Guess): The list of the rule functions is replaced by
 287         (raccess_guess_table): This.  This is exposed to be used by other
 288         intra module functions.
 289         (raccess_rule_by_darwin_vfs): A function to return a boolean
 290         if the rule specified by the rule index is based on Darwin VFS.
 291
 292 2010-10-13  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 293
 294         Prevent to open a FT_Stream for zero-sized file on non-Unix.
 295
 296         builds/unix/ftsystem.c prevents to open an useless stream from
 297         zero-sized file and returns FT_Err_Cannot_Open_Stream, but the
 298         stream drivers for ANSI C, Amiga and VMS return useless streams.
 299         For cross-platform consistency, all stream drivers should act
 300         same.
 301
 302         * src/base/ftsystem.c (FT_Stream_Open): If the size of the opened
 303         file is zero, FT_Err_Cannot_Open_Stream is returned.
 304         * builds/amiga/src/base/ftsystem.c (FT_Stream_Open): Ditto.
 305         * src/vms/ftsystem.c (FT_Stream_Open): Ditto.
 306
 307 2010-10-12  Werner Lemberg  <wl@gnu.org>
 308
 309         Fix Savannah bug #31310.
 310
 311         * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Protect against
 312         invalid `runcnt' values.
 313
 314 2010-10-08  Chris Liddell  <chris.liddell@artifex.com>
 315
 316         Fix Savannah bug #31275.
 317
 318         * src/sfnt/ttpost.c: Include FT_INTERNAL_DEBUG_H.
 319
 320 2010-10-06  Werner Lemberg  <wl@gnu.org>
 321
 322         [truetype] Improve error handling of `SHZ' bytecode instruction.
 323         Problem reported by Chris Evans <scarybeasts@gmail.com>.
 324
 325         * src/truetype/ttinterp.c (Ins_SHZ): Check `last_point'.
 326
 327 2010-10-05  Werner Lemberg  <wl@gnu.org>
 328
 329         Fix Savannah bug #31253.
 330         Patch submitted by an anonymous reporter.
 331
 332         * configure: Use `awk' instead of `sed' to manipulate output of `ls
 333         -id'.
 334
 335 2010-10-03  Werner Lemberg  <wl@gnu.org>
 336
 337         * Version 2.4.3 released.
 338         =========================
 339
 340
 341         Tag sources with `VER-2-4-3'.
 342
 343         * docs/CHANGES: Updated.
 344
 345         * docs/VERSION.DLL: Update documentation and bump version number to
 346         2.4.3
 347
 348         * README, Jamfile (RefDoc),
 349         builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
 350         builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
 351         builds/win32/visualc/freetype.dsp,
 352         builds/win32/visualc/freetype.vcproj,
 353         builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
 354         builds/win32/visualce/freetype.vcproj,
 355         builds/win32/visualce/index.html,
 356         builds/wince/vc2005-ce/freetype.vcproj,
 357         builds/wince/vc2005-ce/index.html,
 358         builds/wince/vc2008-ce/freetype.vcproj,
 359         builds/wince/vc2008-ce/index.html: s/2.4.2/2.4.3/, s/242/243/.
 360
 361         * include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.
 362
 363         * builds/unix/configure.raw (version_info): Set to 12:1:6.
 364
 365 2010-10-03  Werner Lemberg  <wl@gnu.org>
 366
 367         Avoid `configure' issues with symbolic links.
 368         Based on a patch from Alexander Stohr <Alexander.Stohr@gmx.de>.
 369
 370         * configure: Compare directories using `ls -id'.
 371         Check existence of `reference' subdirectory before creating it.
 372
 373 2010-10-02  Werner Lemberg  <wl@gnu.org>
 374
 375         Fix Savannah bug #31088 (sort of).
 376
 377         * src/sfnt/ttload.c (tt_face_load_maxp): Always allocate at least 64
 378         function entries.
 379
 380 2010-10-02  Werner Lemberg  <wl@gnu.org>
 381
 382         [smooth] Fix splitting of cubics for negative values.
 383
 384         Reported by Róbert Márki <gsmiko@gmail.com>; see
 385         http://lists.gnu.org/archive/html/freetype/2010-09/msg00019.html.
 386
 387         * src/smooth/ftgrays.c (gray_render_cubic): Fix thinko.
 388
 389 2010-10-01  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 390
 391         Fix Savannah bug #31040.
 392
 393         * src/truetype/ttinterp.c (free_buffer_in_size): Remove.
 394         (TT_RunIns): Updated.
 395
 396 2010-09-20  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 397
 398         [sfnt] Make error message filling NULL names less verbose.
 399
 400         * src/sfnt/ttpost.c (load_format_20): Showing 1 summary message
 401         when we fill `post' names by NULL, instead of per-entry message.
 402
 403 2010-09-20  Graham Asher  <graham.asher@btinternet.com>
 404             David Bevan  <david.bevan@pb.com>
 405
 406         [smooth] Fix and improve spline flattening.
 407
 408         This fixes the flattening of cubic, S-shaped curves and speeds up
 409         the handling of both the conic and cubic arcs.
 410
 411         See the discussions on the freetype-devel mailing list in late
 412         August and September 2010 for details.
 413
 414         * src/smooth/ftgrays.c (FT_MAX_CURVE_DEVIATION): New macro.
 415         (TWorker): Remove `conic_level' and `cubic_level' elements.
 416         (gray_render_conic): Simplify algorithm.
 417         (gray_render_cubic): New algorithm; details are given in the code
 418         comments.
 419         (gray_convert_glyph): Remove heuristics.
 420
 421 2010-09-19  Werner Lemberg  <wl@gnu.org>
 422
 423         Minor fixes.
 424
 425         * src/cff/cffload.c (cff_charset_compute_cids): `charset->sids[i]'
 426         is `FT_UShort'.
 427         (cff_index_access_element): Don't use additions in comparison.
 428         * src/sfnt/ttpost.c (load_format_20): Make `post_limit' of type
 429         `FT_Long'.
 430         Don't use additions in comparison.
 431         Improve tracing messages.
 432         (load_format_25, load_post_names): Make `post_limit' of type
 433         `FT_Long'.
 434
 435 2010-09-19  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 436
 437         [cff] Truncate the element length at the end of the stream.
 438         See Savannah bug #30975.
 439
 440         * src/cff/cffload.c (cff_index_access_element): `off2', the offset
 441         to the next element is truncated at the end of the stream to prevent
 442         invalid I/O.  As `off1', the offset to the requested element has
 443         been checked by FT_STREAM_SEEK(), `off2' should be checked
 444         similarly.
 445
 446 2010-09-19  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 447
 448         [cff] Ignore CID > 0xFFFFU.
 449         See Savannah bug #30975.
 450
 451         * src/cff/cffload.c (cff_charset_compute_cids): Ignore CID if
 452         greater than 0xFFFFU.  CFF font spec does not mention maximum CID in
 453         the font, but PostScript and PDF spec define that maximum CID is
 454         0xFFFFU.
 455
 456 2010-09-19  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 457
 458         [cff] Make trace message in cff_charset_load() verbose.
 459         See Savannah bug #30975.
 460
 461         * src/cff/cffload.c (cff_charset_load): Report the original `nleft'
 462         and truncated `nleft'.
 463
 464 2010-09-19  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 465
 466         [cff] Correct `max_cid' from CID array length to max CID.
 467         See Savannah bug #30975.
 468
 469         * src/cff/cffload.c (cff_charset_compute_cids): Don't increment
 470         max_cid after detecting max CID.  The array CFF_Charset->cids is
 471         allocated by max_cid + 1.
 472         (cff_charset_cid_to_gindex): Permit CID is less than or equal to
 473         CFF_Charset->max_cid.
 474         * src/cff/cffobjs.c (cff_face_init): FT_Face->num_glyphs is
 475         calculated as CFF_Charset->max_cid + 1.
 476
 477 2010-09-19  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 478
 479         [truetype] Sanitize the broken offsets in `loca'.
 480         See Savannah bug #31040.
 481
 482         * src/truetype/ttpload.c (tt_face_get_location): If `pos1', the
 483         offset to the requested entry in `glyf' exceeds the end of the
 484         table, return offset=0, length=0.  If `pos2', the offset to the next
 485         entry in `glyf' exceeds the end of the table, truncate the entry
 486         length at the end of `glyf' table.
 487
 488 2010-09-19  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 489
 490         [sfnt] Prevent overrunning in `post' table parser.
 491         See Savannah bug #31040.
 492
 493         * src/sfnt/ttpost.c (load_post_names): Get the length of `post'
 494         table and pass the limit of `post' table to load_format_20() and
 495         load_format_25().
 496         (load_format_20): Stop the parsing when we reached at the limit of
 497         `post' table.  If more glyph names are required, they are filled by
 498         NULL names.
 499
 500 2010-09-17  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 501
 502         [truetype] Don't duplicate size->twilight structure to be freed.
 503         See Savannah bug #31040 for detail.
 504
 505         * src/truetype/ttinterp.c (free_buffer_in_size): Don't duplicate
 506         FT_GlyphZoneRec size->twilight to be freed.  If duplicated,
 507         FT_FREE() erases the duplicated pointers only and leave original
 508         pointers.  They can cause the double-free crash when the burst
 509         errors occur in TrueType interpreter and free_buffer_in_size() is
 510         invoked repeatedly.
 511
 512 2010-09-15  Werner Lemberg  <wl@gnu.org>
 513
 514         Make bytecode debugging with FontForge work again.
 515
 516         * src/truetype/ttinterp.c (TT_RunIns): Don't call
 517         `free_buffer_in_size' in case of error if a debugger is active.
 518
 519 2010-09-14  Werner Lemberg  <wl@gnu.org>
 520
 521         Improve tracing messages.
 522
 523         * src/truetype/ttinterp.c (TT_RunIns): Improve wording of tracing
 524         message.
 525         * src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Add
 526         tracing message.
 527         * src/truetype/ttgload.c (tt_loader_init): Add tracing message.
 528         * src/cache/ftcsbits.c (ftc_snode_load): Emit tracing message if
 529         glyph doesn't fit into a small bitmap container.
 530
 531 2010-09-13  Werner Lemberg  <wl@gnu.org>
 532
 533         Fix minor issues reported by <muktha.narayan@wipro.com>.
 534
 535         * src/autofit/aflatin.c (af_latin_compute_stem_width): Remove
 536         redundant conditional check.
 537         * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Ditto.
 538         * src/cff/cffload.c (cff_encoding_load): Remove conditional check
 539         which always evaluates to `true'.
 540         * src/pshinter/pshalgo.c (ps_glyph_interpolate_strong_points):
 541         Ditto.
 542         * src/truetype/ttinterp.c (Ins_IUP): Ditto.
 543         * src/cid/cidgload.c (cid_slot_load_glyph): Don't check for NULL if
 544         value is already dereferenced.
 545         * src/winfonts/winfnt.c (FNT_Load_Glyph): Fix check of `face'.
 546
 547 2010-08-31  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 548
 549         Ignore the environmental setting of LIBTOOL.
 550         Patch is suggested by Adrian Bunk, to prevent unexpected
 551         reflection of environmental LIBTOOL.  See:
 552         http://savannah.nongnu.org/patch/?7290
 553
 554         * builds/unix/unix-cc.in: LIBTOOL is unconditionally set to
 555         $(FT_LIBTOOL_DIR)/libtool.  FT_LIBTOOL_DIR is set to $(BUILD_DIR)
 556         by default.
 557         * configure: When configured for the building out of source tee,
 558         FT_LIBTOOL_DIR is set to $(OBJ_DIR).
 559
 560 2010-08-31  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 561
 562         [truetype] Decrease the trace level catching the interpreter error.
 563
 564         * src/truetype/ttinterp.c (TT_RunIns): Decrease the trace level
 565         showing the error when the interpreter returns with an error,
 566         from FT_TRACE7() to FT_TRACE1().
 567
 568 2010-08-30  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 569
 570         [truetype] Prevent bytecode reuse after the interpretation error.
 571
 572         * src/truetype/ttinterp.c (free_buffer_in_size): New function to
 573         free the buffer allocated during the interpretation of this glyph.
 574         (TT_RunIns): Unset FT_Face->size->{cvt_ready,bytecode_ready} if
 575         an error occurs in the bytecode interpretation.  The interpretation
 576         of invalid bytecode may break the function definitions and referring
 577         them in later interpretation is danger.  By unsetting these flags,
 578         `fpgm' and `prep' tables are executed again in next interpretation.
 579
 580         This fixes Savannah bug #30798, reported by Robert Święcki.
 581
 582 2010-08-29  Werner Lemberg  <wl@gnu.org>
 583
 584         [ftraster] Pacify compiler.
 585
 586         * src/raster/ftraster.c (ft_black_new) [_STANDALONE_]: `memory' is
 587         not used.
 588
 589 2010-08-29  Werner Lemberg  <wl@gnu.org>
 590
 591         [cff] Allow SIDs >= 65000.
 592
 593         * src/cff/cffload.c (cff_charset_load): Fix change from 2009-03-20:
 594         The threshold for SIDs is not applicable here.  I misinterpreted the
 595         `SID values 65000 and above are available for implementation use'
 596         sentence in the CFF specification.
 597
 598         Problem reported by Ivan Ninčić <inincic@pdftron.com>.
 599
 600 2010-08-28  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 601
 602         Force hinting when the font lacks its familyname.
 603
 604         In Type42 or Type11 font embedded in PostScript & PDF, TrueType sfnt
 605         stream may lack `name' table because they are not required.  Hinting
 606         for nameless fonts is safer for PDFs including embedded Chinese
 607         fonts.  Written by David Bevan, see:
 608
 609         http://lists.gnu.org/archive/html/freetype-devel/2010-08/msg00021.html
 610         http://lists.freedesktop.org/archives/poppler/2010-August/006310.html
 611
 612         * src/truetype/ttobjs.c (tt_check_trickyness): If a NULL pointer by
 613         nameless font is given, TRUE is returned to enable hinting.
 614
 615 2010-08-28  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 616
 617         Register yet another tricky TrueType font.
 618
 619         * src/truetype/ttobjs.c (tt_check_trickyness): Add `HuaTianKaiTi?',
 620         a Kaishu typeface paired with `HuaTianSongTi?' by Huatian
 621         Information Industry.
 622
 623 2010-08-17  Teijo Kinnunen <Teijo.Kinnunen@nuance.com>
 624
 625         Fix Savannah bug #30788.
 626
 627         * src/cache/ftccache.c (FTC_Cache_Clear): Check `cache->buckets' for
 628         NULL too.
 629
 630 2010-08-10  Werner Lemberg  <wl@gnu.org>
 631
 632         Try to fix Savannah bug #30717 (and probably #30719 too).
 633
 634         * src/smooth/ftsmooth.c (ft_smooth_render_generic): Add another
 635         overflow test for `width' and `height'.
 636
 637 2010-08-06  Werner Lemberg  <wl@gnu.org>
 638
 639         * Version 2.4.2 released.
 640         =========================
 641
 642
 643         Tag sources with `VER-2-4-2'.
 644
 645         * docs/CHANGES: Updated.
 646
 647         * docs/VERSION.DLL: Update documentation and bump version number to
 648         2.4.2
 649
 650         * README, Jamfile (RefDoc),
 651         builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
 652         builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
 653         builds/win32/visualc/freetype.dsp,
 654         builds/win32/visualc/freetype.vcproj,
 655         builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
 656         builds/win32/visualce/freetype.vcproj,
 657         builds/win32/visualce/index.html,
 658         builds/wince/vc2005-ce/freetype.vcproj,
 659         builds/wince/vc2005-ce/index.html,
 660         builds/wince/vc2008-ce/freetype.vcproj,
 661         builds/wince/vc2008-ce/index.html: s/2.4.1/2.4.2/, s/241/242/.
 662
 663         * include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.
 664
 665         * builds/unix/configure.raw (version_info): Set to 12:0:6.
 666
 667 2010-08-06  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 668
 669         Fix Savannah bug #30648.
 670
 671         * src/base/ftobjs.c (FT_Done_Library): Specify the order of font
 672         drivers during the face closing process.  Type42 faces should be
 673         closed before TrueType faces, because a Type42 face refers to
 674         another internal TrueType face which is created from sfnt[] array on
 675         the memory.
 676
 677 2010-08-06  Yuriy Kaminskiy  <yumkam@mail.ru>
 678
 679         [raster] Fix valgrind warning.
 680
 681         * src/raster/ftraster.c (Decompose_Curve) <default>: Access point[0]
 682         only if we don't hit `limit'.
 683
 684 2010-08-06  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 685
 686         Fix Savannah bug #30658.
 687
 688         * src/base/ftobjs.c (Mac_Read_POST_Resource): Check that the total
 689         length of collected POST segments does not overrun the allocated
 690         buffer.
 691
 692 2010-08-06  Yuriy Kaminskiy  <yumkam@mail.ru>
 693
 694         Fix conditional usage of FT_MulFix_i386.
 695         With -ansi flag, gcc does not define `i386', only `__i386__'.
 696
 697         * include/freetype/config/ftconfig.h, builds/unix/ftconfig.in:
 698         s/i386/__i386__/.
 699
 700 2010-08-05  Werner Lemberg  <wl@gnu.org>
 701
 702         Fix Savannah bug #30657.
 703
 704         * src/truetype/ttinterp.c (BOUNDSL): New macro.
 705         Change `BOUNDS' to `BOUNDSL' where appropriate.
 706
 707         * src/truetype/ttinterp.h (TT_ExecContextRec): Fix type of
 708         `cvtSize'.
 709
 710 2010-08-05  Werner Lemberg  <wl@gnu.org>
 711
 712         Fix Savannah bug #30656.
 713
 714         * src/type42/t42parse.c (t42_parse_sfnts): Protect against negative
 715         string_size.
 716         Fix comparison.
 717
 718 2010-08-05  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 719
 720         [cff] Don't use any values in decoder after parsing error.
 721
 722         * src/cff/cffgload.c (cff_slot_load): Skip the evaluations
 723         of the values in decoder, if cff_decoder_parse_charstrings()
 724         returns any error.
 725
 726 2010-08-04  Werner Lemberg  <wl@gnu.org>
 727
 728         Fix Savannah bug #30644.
 729
 730         * src/base/ftstream.c (FT_Stream_EnterFrame): Fix comparison.
 731
 732 2010-08-04  Werner Lemberg  <wl@gnu.org>
 733
 734         `make devel' fails if FT_CONFIG_OPTION_OLD_INTERNALS is set.
 735
 736         * devel/ftoption.h: Synchronize with
 737         include/freetype/config/ftoption.h.
 738
 739 2010-08-04  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 740
 741         [cff] Improve stack overflow test.
 742
 743         * src/cff/cffgload.c (cff_decoder_parse_charstrings): Check stack
 744         after execution of operations too.
 745
 746 2010-07-18  Werner Lemberg  <wl@gnu.org>
 747
 748         Add reference counters and to FT_Library and FT_Face objects.
 749
 750         * include/freetype/freetype.h (FT_Reference_Face): New function.
 751         * include/freetype/ftmodapi.h (FT_Rererence_Library): New function.
 752
 753         * include/freetype/internal/ftobjs.h (FT_Face_InternalRec,
 754         FT_LibraryRec): New field `refcount'.
 755
 756         * src/base/ftobjs.c (FT_Open_Face, FT_New_Library): Handle
 757         `refcount'.
 758         (FT_Reference_Face, FT_Reference_Library): Implement new functions.
 759         (FT_Done_Face, FT_Done_Library): Handle `refcount'.
 760
 761         * docs/CHANGES: Updated.
 762
 763 2010-07-18  Werner Lemberg  <wl@gnu.org>
 764
 765         * Version 2.4.1 released.
 766         =========================
 767
 768
 769         Tag sources with `VER-2-4-1'.
 770
 771         * docs/CHANGES: Updated.
 772
 773         * docs/VERSION.DLL: Update documentation and bump version number to
 774         2.4.1.
 775
 776         * README, Jamfile (RefDoc),
 777         builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
 778         builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
 779         builds/win32/visualc/freetype.dsp,
 780         builds/win32/visualc/freetype.vcproj,
 781         builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
 782         builds/win32/visualce/freetype.vcproj,
 783         builds/win32/visualce/index.html,
 784         builds/wince/vc2005-ce/freetype.vcproj,
 785         builds/wince/vc2005-ce/index.html,
 786         builds/wince/vc2008-ce/freetype.vcproj,
 787         builds/wince/vc2008-ce/index.html: s/2.4.0/2.4.1/, s/240/241/.
 788
 789         * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.
 790
 791         * builds/unix/configure.raw (version_info): Set to 11:1:5.
 792
 793 2010-07-17  Werner Lemberg  <wl@gnu.org>
 794
 795         [cff] Final try to fix `hintmask' and `cntrmask' limit check.
 796
 797         Problem reported by Tobias Wolf <towolf@gmail.com>.
 798
 799         * src/cff/cffgload.c (cff_decoder_parse_charstrings)
 800         <cff_op_hintmask>: Sigh.  I'm apparently too silly to fix this
 801         correctly in less than three tries.
 802
 803 2010-07-12  Werner Lemberg  <wl@gnu.org>
 804
 805         * Version 2.4.0 released.
 806         =========================
 807
 808
 809         Tag sources with `VER-2-4-0'.
 810
 811         * docs/CHANGES: Updated.
 812
 813         * docs/VERSION.DLL: Update documentation and bump version number to
 814         2.4.0.
 815
 816         * README, Jamfile (RefDoc),
 817         builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
 818         builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
 819         builds/win32/visualc/freetype.dsp,
 820         builds/win32/visualc/freetype.vcproj,
 821         builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
 822         builds/win32/visualce/freetype.vcproj,
 823         builds/win32/visualce/index.html,
 824         builds/wince/vc2005-ce/freetype.vcproj,
 825         builds/wince/vc2005-ce/index.html,
 826         builds/wince/vc2008-ce/freetype.vcproj,
 827         builds/wince/vc2008-ce/index.html: s/2.3.12/2.4.0/, s/2312/240/.
 828
 829         * include/freetype/freetype.h (FREETYPE_MINOR): Set to 4.
 830         (FREETYPE_PATCH): Set to 0.
 831
 832         * builds/unix/configure.raw (version_info): Set to 11:0:5.
 833
 834 2010-07-12  Werner Lemberg  <wl@gnu.org>
 835
 836         Remove C++ warnings.
 837
 838         */*: Initialize pointers where necessary to make g++ happy.
 839
 840 2010-07-12  malc  <av1474@comtv.ru>
 841             Richard Henderson  <rth@redhat.com>
 842
 843         Fix type-punning issues with C++.
 844
 845         * include/freetype/internal/ftmemory.h (FT_ASSIGNP) [__cplusplus]:
 846         Emulate a `typeof' operator with an inline template which uses
 847         `static_cast'.
 848
 849 2010-07-11  Werner Lemberg  <wl@gnu.org>
 850
 851         Fix C++ compilation issue.
 852
 853         * src/tools/apinames.c (names_dump) <OUTPUT_WATCOM_LBC>: Fix
 854         type of `dot' variable.
 855
 856 2010-07-10  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 857
 858         Fix another case reported in Savannah bug #30373.
 859         Permit a face for Type1, Type42 and CFF without charmap,
 860         patch by Tor Andersson.
 861
 862         * src/type1/t1objs.c (T1_Face_Init): Reset the error if it
 863         is FT_Err_No_Unicode_Glyph_Name.
 864         * src/type42/t42objs.c (T42_Face_Init): Ditto.
 865         * src/cff/cffobjs.c (cff_face_init): Ditto.
 866
 867 2010-07-09  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 868
 869         Use defined macros to set {platform,encoding}_id.
 870
 871         * src/bdf/bdfdrivr.c: Include ttnameid.h and use macros to
 872         set charmap.{platfom,encoding}_id.
 873         * src/pcf/pcfdrivr.c: Ditto.
 874         * src/winfonts/winfnt.c: Ditto.
 875         * src/type1/t1objs.c: Ditto.
 876         * src/type42/t42objs.c: Ditto.
 877         * src/cff/cffobjs.c: Ditto.
 878         * src/pfr/pfrobjs.c: Ditto.
 879
 880 2010-07-09  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 881
 882         Fix Savannah bug #30373.
 883         Too serious check of errors by `FT_CMap_New' since 2010-07-04
 884         is fixed. Reported by Tor Andersson.
 885
 886         * include/freetype/fterrdef.h
 887         (PSnames_Err_No_Unicode_Glyph_Name): New error code to
 888         indicate the Unicode charmap synthesis failed because
 889         no Unicode glyph name is found.
 890
 891         * src/psnames/psmodule.c (ps_unicodes_init): Return
 892         PSnames_Err_No_Unicode_Glyph_Name when no Unicode glyph name
 893         is found in the font.
 894         * src/cff/cffcmap.c (cff_cmap_unicode_init): Return
 895         CFF_Err_No_Unicode_Glyph_Name when no SID is available.
 896
 897         * src/type1/t1objs.c (T1_Face_Init): Proceed if `FT_CMap_New'
 898         is failed by the lack of Unicode glyph name.
 899         * src/type42/t42objs.c (T42_Face_Init): Ditto.
 900         * src/cff/cffobjs.c (cff_face_init): Ditto.
 901
 902 2010-07-09  Ken Sharp  <ken.sharp@artifex.com>
 903
 904         Make ftraster.c compile in stand-alone mode with MSVC compiler.
 905
 906         * src/raster/ftmisc.h (FT_Int64) [_WIN32, _WIN64]: Fix typedef
 907         since there is no `inttypes.h' for MSVC.
 908
 909 2010-07-08  Werner Lemberg  <wl@gnu.org>
 910
 911         Fix Savannah bug #30361.
 912
 913         * src/truetype/ttinterp.c (Ins_IUP): Fix bounds check.
 914
 915 2010-07-06  Werner Lemberg  <wl@gnu.org>
 916
 917         Pacify compiler.
 918
 919         * src/cff/cffload.c (cff_index_get_pointers): Initialize
 920         `new_bytes'.
 921
 922 2010-07-05  Eugene A. Shatokhin  <spectre@ispras.ru>
 923
 924         Fix Savannah bug #27648.
 925
 926         * src/base/ftobjs.c (ft_remove_renderer, FT_Add_Module): Call
 927         `raster_done' only if we have an outline glyph format.
 928
 929 2010-07-05  Werner Lemberg  <wl@gnu.org>
 930
 931         Fix Savannah bug #30030.
 932
 933         * builds/win32/*/freetype.vcproj: Add ftxf86.c.
 934
 935 2010-07-05  Werner Lemberg  <wl@gnu.org>
 936
 937         [cff] Next try to fix `hintmask' and `cntrmask' limit check.
 938
 939         Problem reported by malc <av1474@comtv.ru>.
 940
 941         * src/cff/cffgload.c (cff_decoder_parse_charstrings)
 942         <cff_op_hintmask>: It is possible that there is just a single byte
 943         after the `hintmask' or `cntrmask', e.g., a `return' instruction.
 944
 945 2010-07-04  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 946
 947         Restrict the number of the charmaps in a rogue-compatible mode.
 948         Fix for Savannah bug #30059.
 949
 950         * src/cache/ftccmap.c (FTC_CMapCache_Lookup): Replace `16' the
 951         minimum character code passed by a legacy rogue client by...
 952         * include/freetype/config/ftoption.h (FT_MAX_CHARMAP_CACHEABLE):
 953         This.  It is undefined when FT_CONFIG_OPTION_OLD_INTERNALS is
 954         undefined (thus the rogue client compatibility is not required).
 955
 956         * src/cff/cffobjs.c (cff_face_init): Abort the automatic
 957         selection or synthesis of Unicode cmap subtable when the charmap
 958         index exceeds FT_MAX_CHARMAP_CACHEABLE.
 959         * src/sfnt/ttcmap.c (tt_face_build_cmaps): Issue error message
 960         when the charmap index exceeds FT_MAX_CHARMAP_CACHEABLE.
 961
 962         * src/base/ftobjs.c (find_unicode_charmap): When Unicode charmap
 963         is found after FT_MAX_CHARMAP_CACHEABLE, ignore it and search
 964         earlier one.
 965         (find_variant_selector_charmap): When UVS charmap is found after
 966         FT_MAX_CHARMAP_CACHEABLE, ignore it and search earlier one.
 967         (FT_Select_Charmap): When a charmap matching with requested
 968         encoding but after FT_MAX_CHARMAP_CACHEABLE, ignore and search
 969         earlier one.
 970         (FT_Set_Charmap): When a charmap matching with requested
 971         charmap but after FT_MAX_CHARMAP_CACHEABLE, ignore and search
 972         earlier one.
 973         (FT_Get_Charmap_Index): When a requested charmap is found
 974         after FT_MAX_CHARMAP_CACHEABLE, return the inverted charmap
 975         index.
 976
 977 2010-07-04  Werner Lemberg  <wl@gnu.org>
 978
 979         TrueType hinting is no longer patented.
 980
 981         * include/freetype/config/ftoption.h, devel/ftoption.h
 982         (TT_CONFIG_OPTION_BYTECODE_INTERPRETER): Define.
 983         (TT_CONFIG_OPTION_UNPATENTED_HINTING): Undefine.
 984
 985         * docs/CHANGES, docs/INSTALL, include/freetype/freetype.h: Updated.
 986         * docs/TRUETYPE, docs/PATENTS: Removed.
 987
 988 2010-07-04  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 989
 990         Check error value by `FT_CMap_New'.
 991
 992         * src/cff/cffobjs.c (cff_face_init): Check error value by
 993         `FT_CMap_New'.
 994         * src/pfr/pfrobjs.c (pfr_face_init): Ditto.
 995         * src/type1/t1jobjs.c (T1_Face_Init): Ditto.
 996         * src/type42/t42jobjs.c (T42_Face_Init): Ditto.
 997
 998 2010-07-03  Werner Lemberg  <wl@gnu.org>
 999
1000         Make ftgrays.c compile stand-alone again.
1001
1002         * src/smooth/ftgrays.c [_STANDALONE_]: Include `stddef.h'.
1003         (FT_INT_MAX, FT_PtrDist)[_STANDALONE_]: Define.
1004
1005 2010-07-02  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
1006
1007         Additional fix for Savannah bug #30306.
1008
1009         * src/base/ftobjs.c (Mac_Read_POST_Resource): If the type of the
1010         POST fragment is 0, the segment is completely ignored.  The declared
1011         length of the segment is not cared at all.  According to Adobe
1012         Technical Note 5040, type 0 segment is a comment only and should not
1013         be loaded for the interpreter.  Reported by Robert Święcki.
1014
1015 2010-07-01  Werner Lemberg  <wl@gnu.org>
1016
1017         [truetype] Protect against code range underflow.
1018
1019         * src/truetype/ttinterp.c (DO_JROT, DO_JMPR, DO_JROF): Don't allow
1020         negative IP values.
1021
1022 2010-07-01  Werner Lemberg  <wl@gnu.org>
1023
1024         [truetype] Add rudimentary tracing for bytecode instructions.
1025
1026         * src/truetype/ttinterp.c (opcode_name) [FT_DEBUG_LEVEL_TRACE]: New
1027         array.
1028         (TT_RunIns): Trace opcodes.
1029
1030 2010-06-30  Werner Lemberg  <wl@gnu.org>
1031
1032         Fix Savannah bug #30263.
1033
1034         * src/smooth/ftgrays.c (gray_render_span): Use cast to `unsigned
1035         int' to avoid integer overflow.
1036
1037         * src/smooth/ftsmooth.c (ft_smooth_render_generic): Use smaller
1038         threshold values for `width' and `height'.  This is not directly
1039         related to the bug fix but makes sense anyway.
1040
1041 2010-07-01  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
1042
1043         Initial fix for Savannah bug #30306.
1044
1045         * src/base/ftobjs.c (Mac_Read_POST_Resource): Check `rlen', the
1046         length of fragment declared in the POST fragment header, and prevent
1047         an underflow in length calculation.  Some fonts set the length to
1048         zero in spite of the existence of a following 16bit `type'.
1049         Reported by Robert Święcki.
1050
1051 2010-07-01  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
1052
1053         Additional fix for Savannah bug #30248 and #30249.
1054
1055         * src/base/ftobjs.c (Mac_Read_POST_Resource): Check the buffer size
1056         during gathering PFB fragments embedded in LaserWriter PS font for
1057         Macintosh.  Reported by Robert Święcki.
1058
1059 2010-06-30  Alexei Podtelezhnikov  <apodtele@gmail.com>
1060
1061         Minor optimizations by avoiding divisions.
1062
1063         * src/sfnt/ttkern.c (tt_face_load_kern, tt_face_get_kerning):
1064         Replace divisions with multiplication in comparisons.
1065
1066 2010-06-29  Werner Lemberg  <wl@gnu.org>
1067
1068         Fix minor tracing issues.
1069
1070         * src/cff/cffgload.c, src/truetype/ttgload.c: Adjust tracing levels.
1071
1072 2010-06-27  Werner Lemberg  <wl@gnu.org>
1073
1074         [cff] Really fix `hintmask' and `cntrmask' limit check.
1075
1076         * src/cff/cffgload.c (cff_decoder_parse_charstrings)
1077         <cff_op_hintmask>: Fix thinko and handle tracing also.
1078
1079 2010-06-27  Werner Lemberg  <wl@gnu.org>
1080
1081         Fix valgrind warning.
1082
1083         * src/base/ftoutln.c (FT_Outline_Get_Orientation): Initialize
1084         `result' array.
1085
1086 2010-06-27  Werner Lemberg  <wl@gnu.org>
1087
1088         [cff] Fix memory leak.
1089
1090         * src/cff/cffgload.c (cff_operator_seac): Free charstrings even in
1091         case of errors.
1092
1093 2010-06-27  Werner Lemberg  <wl@gnu.org>
1094
1095         [cff] Protect against invalid `hintmask' and `cntrmask' operators.
1096
1097         * src/cff/cffgload.c (cff_decoder_parse_charstrings)
1098         <cff_op_hintmask>: Ensure that we don't exceed `limit' while parsing
1099         the bit masks of the `hintmask' and `cntrmask' operators.
1100
1101 2010-06-26  Werner Lemberg  <wl@gnu.org>
1102
1103         Fix PFR change 2010-06-24.
1104
1105         * src/pfr/pfrgload.c (pfr_glyph_load_simple): Really protect against
1106         invalid indices.
1107
1108 2010-06-26  Werner Lemberg  <wl@gnu.org>
1109
1110         Improve PFR tracing messages.
1111
1112         * src/pfr/pfrgload.c (pfr_glyph_load_rec): Emit tracing messages for
1113         simple and compound glyph offsets.
1114
1115 2010-06-26  Werner Lemberg  <wl@gnu.org>
1116
1117         Fix last PFR change.
1118
1119         * src/pfr/pfrobjs.c (pfr_face_init): Fix rejection logic.
1120
1121 2010-06-26  Werner Lemberg  <wl@gnu.org>
1122
1123         Fix Savannah bug #30262.
1124
1125         * src/sfnt/ttload.c (tt_face_load_maxp): Limit `maxComponentDepth'
1126         arbitrarily to 100 to avoid stack exhaustion.
1127
1128 2010-06-26  Werner Lemberg  <wl@gnu.org>
1129
1130         Add some memory checks (mainly for debugging).
1131
1132         * src/base/ftstream.c (FT_Stream_EnterFrame): Exit with error
1133         if the frame size is larger than the stream size.
1134
1135         * src/base/ftsystem.c (ft_ansi_stream_io): Exit with error if
1136         seeking a position larger than the stream size.
1137
1138 2010-06-25  Werner Lemberg  <wl@gnu.org>
1139
1140         Fix Savannah bug #30261.
1141
1142         * src/pfr/pfrobjs.c (pfr_face_init): Reject fonts which contain
1143         neither outline nor bitmap glyphs.
1144
1145 2010-06-25  Werner Lemberg  <wl@gnu.org>
1146
1147         Fix Savannah bug #30254.
1148
1149         * src/cff/cffload.c (cff_index_get_pointers): Do sanity check for
1150         first offset also.
1151
1152 2010-06-25  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
1153
1154         Initial fix for Savannah bug #30248 and #30249.
1155
1156         * src/base/ftobjs.c (Mac_Read_POST_Resource): Check the error during
1157         reading a PFB fragment embedded in LaserWriter PS font for Macintosh.
1158         Reported by Robert Święcki.
1159
1160 2010-06-24  Werner Lemberg  <wl@gnu.org>
1161
1162         Fix Savannah bug #30247.
1163
1164         * src/pcf/pcfread.c (pcf_get_metrics): Disallow (invalid) fonts with
1165         zero metrics.
1166
1167 2010-06-24  Graham Asher  <graham.asher@btinternet.com>
1168
1169         * src/smooth/ftgrays.c (gray_render_cubic): Fix algorithm.
1170         The previous version was too aggressive, as demonstrated in
1171         http://lists.gnu.org/archive/html/freetype-devel/2010-06/msg00020.html.
1172
1173 2010-06-24  Werner Lemberg  <wl@gnu.org>
1174
1175         */*: Use module specific error names where appropriate.
1176
1177 2010-06-24  Werner Lemberg  <wl@gnu.org>
1178
1179         Fix Savannah bug #30236.
1180
1181         * src/sfnt/ttcmap.c (tt_face_build_cmaps): Improve check for pointer
1182         to `cmap_table'.
1183
1184 2010-06-24  Werner Lemberg  <wl@gnu.org>
1185
1186         Fix Savannah bug #30235.
1187
1188         * src/pfr/pfrgload.c (pfr_glyph_load_simple): Protect against
1189         invalid indices if there aren't any coordinates for indexing.
1190
1191 2010-06-24  Werner Lemberg  <wl@gnu.org>
1192
1193         [bdf]: Font properties are optional.
1194
1195         * src/bdf/bdflib.c (_bdf_readstream): Use special error code to
1196         indicate a redo operation.
1197         (_bdf_parse_start): Handle `CHARS' keyword here too and pass current
1198         input line to `_bdf_parse_glyph'.
1199
1200 2010-06-23  Werner Lemberg  <wl@gnu.org>
1201
1202         Fix Savannah bug #30220.
1203
1204         * include/freetype/fterrdef.h
1205         (BDF_Err_Missing_Fontboundingbox_Field): New error code.
1206
1207         * src/bdf/bdflib.c (_bdf_parse_start): Check for missing
1208         `FONTBOUNDINGBOX' field.
1209         Avoid memory leak if there are multiple `FONT' lines (which is
1210         invalid but doesn't hurt).
1211
1212 2010-06-21  Werner Lemberg  <wl@gnu.org>
1213
1214         Fix Savannah bug #30168.
1215
1216         * src/pfr/pfrgload.c (pfr_glyph_load_compound): Limit the number of
1217         subglyphs to avoid endless recursion.
1218
1219 2010-06-20  Werner Lemberg  <wl@gnu.org>
1220
1221         Fix Savannah bug #30145.
1222
1223         * src/psaux/psobjs.c (t1_builder_add_contour): Protect against
1224         `outline == NULL' which might happen in invalid fonts.
1225
1226 2010-06-19  Werner Lemberg  <wl@gnu.org>
1227
1228         Fix Savannah bug #30135.
1229
1230         * src/bdf/bdflib.c (_bdf_list_join): Don't modify value in static
1231         string `empty'.
1232         (_bdf_parse_glyph): Avoid memory leak in case of error.
1233
1234 2010-06-15  Werner Lemberg  <wl@gnu.org>
1235
1236         Fix Savannah bug #30108.
1237
1238         * src/autofit/afglobal.c (af_face_globals_compute_script_coverage):
1239         Properly mask AF_DIGIT bit in comparison.
1240
1241 2010-06-11  Werner Lemberg  <wl@gnu.org>
1242
1243         Fix Savannah bug #30106.
1244
1245         Point numbers for FreeType's implementation of hinting masks are
1246         collected before the final number of points of a glyph has been
1247         determined; in particular, the code for handling the `endchar'
1248         opcode can reduce the number of points.
1249
1250         * src/pshinter/pshalgo.c (psh_glyph_find_strong_points): Assure that
1251         `end_point' is not larger than `glyph->num_points'.
1252
1253 2010-06-11  Werner Lemberg  <wl@gnu.org>
1254
1255         [cff]: Improve debugging output.
1256
1257         * src/cff/cffgload.c (cff_decoder_parse_charstrings)
1258         <cff_op_hintmask>: Implement it.
1259
1260 2010-06-10  Graham Asher  <graham.asher@btinternet.com>
1261
1262         ftgrays: Speed up rendering of small cubic splines.
1263
1264         * src/smooth/ftgrays.c (gray_render_cubic): Implement new,
1265         simplified algorithm to find out whether the spline can be replaced
1266         with two straight lines.  See this thread for more:
1267
1268           http://lists.gnu.org/archive/html/freetype-devel/2010-06/msg00000.html
1269
1270 2010-06-09  Werner Lemberg  <wl@gnu.org>
1271
1272         Fix Savannah bug #30082.
1273
1274         * src/cff/cffgload.c (cff_decoder_parse_charstrings)
1275         <cff_op_callothersubr>: Protect against stack underflow.
1276
1277 2010-06-08  Werner Lemberg  <wl@gnu.org>
1278
1279         Fix Savannah bug #30053.
1280
1281         * src/cff/cffparse.c (cff_parse_real): Handle border case where
1282         `fraction_length' has value 10.
1283
1284 2010-06-07  Werner Lemberg  <wl@gnu.org>
1285
1286         Fix Savannah bug #30052.
1287         This bug has been introduced with commit 2415cbf3.
1288
1289         * src/base/ftobjs.c (FT_Get_First_Char, FT_Get_Next_Char): Protect
1290         against endless loop in case of corrupted font header data.
1291
1292 2010-05-26  Werner Lemberg  <wl@gnu.org>
1293
1294         Remove unused variable.
1295         Found by Graham.
1296
1297         * src/autofit/afhints.c (af_glyph_hints_reload): Remove unused
1298         variable `first' in first block.
1299
1300 2010-05-22  Werner Lemberg  <wl@gnu.org>
1301
1302         Fix various memory problems found by linuxtesting.org.
1303
1304         * src/base/ftgxval.c (FT_TrueTypeGX_Free, FT_ClassicKern_Free),
1305         src/base/ftotval.c (FT_OpenType_Free), src/base/ftpfr.c
1306         (ft_pfr_check): Check `face'.
1307
1308         * src/base/ftobjs.c (FT_Get_Charmap_Index): Check `charmap' and
1309         `charmap->face'.
1310         (FT_Render_Glyph): Check `slot->face'.
1311         (FT_Get_SubGlyph_Info): Check `glyph->subglyphs'.
1312
1313 2010-05-22  Werner Lemberg  <wl@gnu.org>
1314
1315         autofit: Remove dead code.
1316         Suggested by Graham.
1317
1318         * src/autofit/afhints.c (af_glyph_hints_compute_inflections):
1319         Removed.
1320         (af_glyph_hints_reload): Remove third argument.
1321         Update all callers.
1322
1323 2010-05-21  Bram Tassyns  <bramt@enfocus.be>
1324
1325         Fix Savannah bug #27987.
1326
1327         * src/cff/cffobjs.c (remove_subset_prefix): New function.
1328         (cff_face_init): Use it to adjust `cffface->family_name'.
1329
1330 2010-05-20  Werner Lemberg  <wl@gnu.org>
1331
1332         TrueType: Make FreeType ignore maxSizeOfInstructions in `maxp'.
1333
1334         Acroread does the same.
1335
1336         * src/truetype/ttgload.c (TT_Process_Composite_Glyph): Call
1337         `Update_Max' to adjust size of instructions array if necessary and
1338         add a rough safety check.
1339
1340         (load_truetype_glyph): Save `loader->byte_len' before recursive
1341         call.
1342
1343         * src/truetype/ttinterp.h, src/truetype/ttinterp.c (Update_Max):
1344         Declare it as FT_LOCAL.
1345
1346 2010-05-18  Hongbo Ni  <hongbo@njstar.com>
1347
1348         Apply Savannah patch #7196.
1349
1350         * src/cff/cffgload.c (cff_slot_load): Prevent crash if CFF subfont
1351         index is out of range.
1352
1353 2010-05-11  Werner Lemberg  <wl@gnu.org>
1354
1355         * docs/formats.txt: Give pointer to PCF documentation.
1356         Information provided by Alan Coopersmith
1357         <alan.coopersmith@oracle.com>.
1358
1359 2010-05-10  Ken Sharp  <ken.sharp@artifex.com>
1360
1361         Fix Savannah bug #29846.
1362
1363         Previously we discovered fonts which used `setcurrentpoint' to set
1364         the initial point of a contour to 0,0.  This caused FreeType to
1365         raise an error, because the `setcurrentpoint' operator is only
1366         supposed to be used with the results from an OtherSubr subroutine.
1367
1368         This was fixed by simply ignoring the error and carrying on.
1369
1370         Now we have found a font which uses setcurrentpoint to actually
1371         establish a non-zero point for a contour during the course of a
1372         glyph program.  FWIW, these files may be produced by an application
1373         called `Intaglio' on the Mac, when converting TrueType fonts to
1374         Type 1.
1375
1376         The fix allows the new invalid behaviour, the old invalid behaviour
1377         and real proper usage of the operator to work the same way as Adobe
1378         interpreters apparently do.
1379
1380         (t1_decoder_parse_charstrings): Make `setcurrentpoint' use the top
1381         two elements of the stack to establish unconditionally the current x
1382         and y coordinates.
1383
1384         Make the `flex' subroutine handling (OtherSubr 0) put the current
1385         x,y coordinates onto the stack, instead of two dummy uninitialised
1386         values.
1387
1388 2010-04-14  Ken Sharp  <ken.sharp@artifex.com>
1389
1390         Fix Savannah bug #29444.
1391
1392         * src/psaux/psobjs.c (t1_builder_start_point): Accept (invalid)
1393         `lineto' immediately after `hsbw', in accordance with Acrobat, GS,
1394         and others.
1395
1396 2010-04-14  Michał Cichoń  <thedmd@artifexmundi.com>
1397
1398         Fix Savannah bug #27999.
1399
1400         * src/cache/ftcmanag.c (FTC_Manager_RemoveFaceID): Only remove
1401         selected entry, not all.
1402
1403 2010-04-06  Jonathan Kew  <jfkthame@gmail.com>
1404
1405         Add overflow check to `fvar' table.
1406
1407         * src/truetype/ttgxvar.c (TT_Get_MM_Var): Check axis and instance
1408         count.
1409
1410 2010-04-05  Ken Sharp  <ken.sharp@artifex.com>
1411
1412         Fix Savannah bug #29335.
1413
1414         * src/raster/ftraster.c (Line_Up): Use slow multiplication to
1415         prevent overflow.  This shouldn't have any serious impact on speed,
1416         however.
1417
1418 2010-04-05  Werner Lemberg  <wl@gnu.org>
1419
1420         Add new function `FT_Library_SetLcdFilterWeights'.
1421
1422         This is based on code written by Lifter
1423         <http://unixforum.org/index.php?showuser=11691>.  It fixes
1424         FreeDesktop bug #27386.
1425
1426         * src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights): New
1427         function.
1428
1429         * include/freetype/ftlcdfil.h: Updated.
1430
1431         * docs/CHANGES: Updated.
1432
1433 2010-04-01  John Tytgat  <John.Tytgat@esko.com>
1434
1435         Fix Savannah bug #29404.
1436
1437         * src/truetype/ttgload.c: Revert change 2752bd1a (check on bit 1
1438         of `head' table of TrueType fonts).
1439
1440 2010-03-14  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
1441
1442         Fix `multi build' for Tytgat's CFF driver improvement.
1443
1444         * src/base/cffload.h (cff_index_get_name): Added.
1445
1446 2010-03-12  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
1447
1448         Remove duplicated inclusion of `FT_OUTLINE_H' in ftobjs.c.
1449
1450         * src/base/ftobjs.c: Remove 2nd inclusion of `FT_OUTLINE_H'.
1451
1452 2010-03-11  Chris Liddell  <chris.liddell@artifex.com>
1453
1454         Fix Savannah bug #27442.
1455
1456         * src/raster/ftraster.c (ft_black_reset): Fix `buffer_size'.
1457
1458 2010-03-09  Werner Lemberg  <wl@gnu.org>
1459
1460         Remove unused variable.
1461         Reported by Graham.
1462
1463         * src/cff/cffparse.c (cff_parse_real): Remove `rest'.
1464
1465 2010-03-02  John Tytgat  <John.Tytgat@esko.com>
1466
1467         Improve CFF string (especially glyphname) lookup performance.
1468
1469         We do this by avoiding memory allocation and file I/O.  This is
1470         Savannah patch #7104.
1471
1472         * src/cff/cfftypes.h: Include PS cmaps service and
1473         FT_INTERNAL_POSTSCRIPT_HINTS_H.
1474         (CFF_SubFontRec): Remove `num_local_subrs'.
1475         (CFF_FontRec): Add `num_strings', `strings', and `string_pool'
1476         fields.
1477         Remove `string_index' and `num_global_subrs' fields.
1478         Use real types instead of `void' for `pshinter' and `psnames' fields.
1479
1480         * src/cff/cffload.c: Don't include PS cmaps service.
1481         (cff_index_get_pointers): Add `pool' parameter which allows to
1482         insert an extra NUL character for each String INDEX entry.
1483         (cff_index_get_name): Make it a local function.
1484         (cff_index_get_string): New function.
1485         (cff_subfont_load): Updated.
1486         (cff_font_load): Initialize `num_strings', `strings', and
1487         `string_pool' fields in the `CFF_FontRec' structure.
1488         (cff_index_get_sid_string): Use `cff_index_get_string' instead of
1489         `cff_index_get_name'.
1490         (cff_font_done): Updated.
1491
1492         * src/cff/cffload.h: Don't include PS cmaps service.
1493         (cff_index_get_string): Added.
1494         (cff_index_get_sid_string): Updated.
1495
1496         * src/cff/cffobjs.c: Don't include PS cmaps service and
1497         FT_INTERNAL_POSTSCRIPT_HINTS_H.
1498         (cff_size_get_globals_funcs, cff_slot_init): Updated.
1499         (cff_face_init): Follow `cff_index_get_name',
1500         `cff_index_get_string', and `cff_index_get_sid_string' changes.
1501
1502         * src/cff/cffcmap.c (cff_sid_free_glyph_name): Removed.
1503         (cff_sid_to_glyph_name): Use `cff_index_get_cid_string'.
1504         (cff_cmap_unicode_init): Updated.
1505
1506         * src/cff/cffdrivr.c: Don't include PS cmap service.
1507         (cff_get_glyph_name): Avoid unnecessary lookup for POSTSCRIPT_CMAPS
1508         service.
1509         (cff_get_glyph_name, cff_ps_get_font_info, cff_get_ros): Follow API
1510         `cff_index_get_sid_string' change.
1511         (cff_get_name_index): Use `cff_index_get_string' instead of
1512         `cff_index_get_name'.
1513
1514         * src/cff/cffgload.c: Don't include FT_INTERNAL_POSTSCRIPT_HINTS_H.
1515         (cff_decoder_init, cff_decoder_prepare): Updated.
1516
1517 2010-02-27  Werner Lemberg  <wl@gnu.org>
1518
1519         Simplify code.
1520         Suggested by Behdad.
1521
1522         * src/base/ftobjs.c (FT_Get_First_Char): Don't use a loop since we
1523         call FT_Get_Next_Char anyway if necessary.
1524
1525 2010-02-26  Behdad Esfahbod  <behdad@behdad.org>
1526
1527         Improve handling of invalid glyph indices in char->index functions.
1528
1529         * src/base/ftobjs.c (FT_Get_First_Char, FT_Get_Next_Char): Use a
1530         loop.
1531
1532 2010-02-18  Chris Liddell  <chris.liddell@artifex.com>
1533
1534         Fix Savannah bug #28905.
1535
1536         Initialize phantom points before calling the incremental interface
1537         to update glyph metrics.
1538
1539         * src/truetype/ttgload.c (tt_get_metrics_incr_overrides)
1540         [FT_CONFIG_OPTION_INCREMENTAL]: New function, split off from...
1541         (tt_get_metrics): This.
1542         Updated.
1543         (load_truetype_glyph): Use tt_get_metrics_incr_overrides.
1544
1545 ----------------------------------------------------------------------------
1546
1547 Copyright 2010 by
1548 David Turner, Robert Wilhelm, and Werner Lemberg.
1549
1550 This file is part of the FreeType project, and may only be used, modified,
1551 and distributed under the terms of the FreeType project license,
1552 LICENSE.TXT.  By continuing to use, modify, or distribute this file you
1553 indicate that you have read the license and understand and accept it
1554 fully.
1555
1556
1557 Local Variables:
1558 version-control: never
1559 coding: utf-8
1560 End: