reactos/lib/3rdparty/freetype/ChangeLog

   1 2016-02-07  Werner Lemberg  <wl@gnu.org>
   2
   3         * Version 2.6.3 released.
   4         =========================
   5
   6
   7         Tag sources with `VER-2-6-3'.
   8
   9         * docs/VERSION.DLL: Update documentation and bump version number to
  10         2.6.3.
  11
  12         * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
  13         builds/windows/vc2005/index.html,
  14         builds/windows/vc2008/freetype.vcproj,
  15         builds/windows/vc2008/index.html,
  16         builds/windows/vc2010/freetype.vcxproj,
  17         builds/windows/vc2010/index.html,
  18         builds/windows/visualc/freetype.dsp,
  19         builds/windows/visualc/freetype.vcproj,
  20         builds/windows/visualc/index.html,
  21         builds/windows/visualce/freetype.dsp,
  22         builds/windows/visualce/freetype.vcproj,
  23         builds/windows/visualce/index.html,
  24         builds/wince/vc2005-ce/freetype.vcproj,
  25         builds/wince/vc2005-ce/index.html,
  26         builds/wince/vc2008-ce/freetype.vcproj,
  27         builds/wince/vc2008-ce/index.html: s/2.6.2/2.6.3/, s/262/263/.
  28
  29         * include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.
  30
  31         * builds/unix/configure.raw (version_info): Set to 18:3:12.
  32         * CMakeLists.txt (VERSION_PATCH): Set to 2.
  33
  34         * docs/CHANGES: Updated.
  35
  36 2016-02-07  Werner Lemberg  <wl@gnu.org>
  37
  38         Fix another runtime error found by clang's sanitizer (#47082).
  39
  40         * src/base/ftstroke.c (ft_stroke_border_export): Properly handle
  41         empty input buffer.
  42
  43 2016-02-07  Werner Lemberg  <wl@gnu.org>
  44
  45         Fix runtime errors found by clang's sanitizer (#47082).
  46
  47         * src/base/ftobjs.c (FT_Render_Glyph_Internal), src/base/ftoutln.c
  48         (FT_Outline_Copy), src/cache/ftcsbits.c (ftc_sbit_copy_bitmap):
  49         Properly handle empty input buffer.
  50
  51 2016-02-07  Werner Lemberg  <wl@gnu.org>
  52
  53         [cff] Minor.
  54
  55         * src/cff/cffgload.c (cff_decoder_parse_charstrings) <cff_op_sqrt>:
  56         Remove dead code.
  57
  58 2016-02-07  Werner Lemberg  <wl@gnu.org>
  59
  60         [cff] Implement missing operators in new engine (except `random').
  61
  62         * src/cff/cf2font.h (CF2_STORAGE_SIZE): New macro.
  63
  64         * src/cff/cf2intrp.c (cf2_interpT2CharString): Implement the
  65         following operators: abs, add, and, div, drop, dup, eq, exch, get,
  66         ifelse, index, mul, neg, not, or, put, roll, sqrt, sub.
  67
  68         * src/cff/cf2stack.h, src/cff/cf2stack.c (cf2_stack_roll): New
  69         auxiliary function for `roll' operator.
  70
  71 2016-02-06  Werner Lemberg  <wl@gnu.org>
  72
  73         [cff] Fix some Type 2 operators in old CFF engine.
  74
  75         * src/cff/cffgload.c (cff_decoder_parse_charstrings): Fix `eq'
  76         operator, add `not' and (unsupported) `blend' operators.
  77
  78 2016-02-05  Sebastian Rasmussen  <sebras@gmail.com>
  79
  80         Make direct call of `make install' work (#47072).
  81
  82         * builds/unix/unix-def.in (freetype-config): Make sure
  83         `freetype-config' is generated for both make targets (`all' and
  84         `install').
  85
  86 2016-02-05  Werner Lemberg  <wl@gnu.org>
  87
  88         [base] Fix advance width loading for MM and GX fonts (#47064).
  89
  90         * src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Return false for
  91         MM and GX fonts.
  92         Update callers.
  93
  94 2016-02-03  Werner Lemberg  <wl@gnu.org>
  95
  96         [cff] Fix handling of face_index == -1 for pure CFF.
  97
  98         * src/cff/cffobjs.c (cff_face_init): Return correct number of faces.
  99
 100 2016-01-30  Werner Lemberg  <wl@gnu.org>
 101
 102         [autofit] Minor tracing improvement.
 103
 104         * src/autofit/afhints.c (af_glyph_hints_dump_points): Insert newline
 105         at the start of a new contour.
 106
 107 2016-01-28  Nikolaus Waxweiler  <madigens@gmail.com>
 108
 109         Remove unpatented hinter (3/3).
 110
 111         * include/freetype/config/ftoption.h
 112         (TT_CONFIG_OPTION_UNPATENTED_HINTING): Remove.
 113
 114         * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Remove
 115         `ignore_unpatented_hinter' field.
 116         Update users.
 117         (FT_DEBUG_HOOK_UNPATENTED_HINTING): Remove.
 118         Update users.
 119
 120         * include/freetype/internal/tttypes.h (TT_FaceRec): Remove
 121         `unpatented_hinting' field.
 122         Update users.
 123
 124         * src/base/ftpatent.c (_tt_check_patents_in_range,
 125         _tt_check_patents_in_table, _tt_face_check_patents): Remove.
 126         (FT_Face_CheckTrueTypePatents, FT_Face_SetUnpatentedHinting):
 127         Replace code with dummies.
 128
 129         * src/truetype/ttobjs.c (tt_face_init): Remove now defunct code.
 130         * src/truetype/ttobjs.h (TT_GraphicsState): Remove `both_x_axis'
 131         field.
 132
 133 2016-01-28  Nikolaus Waxweiler  <madigens@gmail.com>
 134
 135         Remove unpatented hinter (2/3).
 136
 137         * devel/ftoption.h (TT_CONFIG_OPTION_UNPATENTED_HINTING): Remove.
 138
 139 2016-01-28  Nikolaus Waxweiler  <madigens@gmail.com>
 140
 141         Remove unpatented hinter (1/3).
 142
 143         * src/truetype/ttinterp.c [TT_CONFIG_OPTION_UNPATENTED_HINTING]:
 144         Remove all code related to this macro.
 145
 146 2016-01-28  Werner Lemberg  <wl@gnu.org>
 147
 148         [autofit] Add blue-zone support for Kannada script.
 149
 150         This essentially moves the Kannada script from the `Indic' hinter to
 151         the `Latin' hinter.
 152
 153         * src/autofit/afblue.dat: Add blue zone data for Kannada.
 154
 155         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
 156
 157         * src/autofit/afscript.h: Add Kannada standard characters and move
 158         data out of AF_CONFIG_OPTION_INDIC block.
 159
 160         * src/autofit/afranges.c: Move Kannada data out of
 161         AF_CONFIG_OPTION_INDIC block.
 162
 163         * src/autofit/afstyles.h: Update Kannada data; in particular, use
 164         AF_WRITING_SYSTEM_LATIN.
 165
 166 2016-01-22  Alexei Podtelezhnikov  <apodtele@gmail.com>
 167
 168         Better access to 64-bit integers for C99 compilers.
 169
 170         * include/freetype/config/ftconfig.h [FT_LONG64]: Use
 171         __STDC_VERSION__ to define 64-bit integers.
 172         * builds/unix/ftconfig.in [FT_LONG64]: Ditto.
 173         * builds/vms/ftconfig.h [FT_LONG64]: Ditto.
 174
 175 2016-01-21  Werner Lemberg  <wl@gnu.org>
 176
 177         [gxvalid] Remove commented out code.
 178
 179         * src/gxvalid/gxvcommn.c (gxv_EntryTable_validate): Do it.
 180
 181 2016-01-20  Werner Lemberg  <wl@gnu.org>
 182
 183         [autofit] Complete last autofit commit.
 184
 185         Problem reported by Kostya Serebryany <kcc@google.com>.
 186
 187         * src/autofit/afshaper.c (af_shaper_get_coverage)
 188         [!FT_CONFIG_OPTION_USE_HARFBUZZ]: Update signature.
 189
 190 2016-01-20  Werner Lemberg  <wl@gnu.org>
 191
 192         Still handle `__FTERRORS_H__'.
 193
 194         We need this for backwards compatibility.
 195
 196         Problem reported by John Emmas <johne53@tiscali.co.uk>.
 197
 198         * include/freetype/fterrors.h: Fix inclusion guard so that
 199         undefining either `FTERRORS_H_' or `__FTERRORS_H__' works as
 200         expected.
 201
 202 2016-01-19  Werner Lemberg  <wl@gnu.org>
 203
 204         [autofit] Fix handling of default script.
 205
 206         Patch taken from ttfautohint, commit
 207         071ae2c00e0d67f9d19418f4fade1c23d27dc185.
 208
 209         There were two bugs.
 210
 211           - We now use non-standard script tags like `khms' for special
 212             purposes.  However, HarfBuzz maps such tags to `DFLT', and
 213             without this commit the associated lookups were incorrectly
 214             assigned to the non-standard tags.
 215
 216           - Let's assume we have a Bengali font, and the font's `DFLT'
 217             script tag handles the necessary lookups for Bengali, too.
 218             Without this commit, the `DFLT' lookups were assigned to
 219             ttfautohint's default script (usually `latn') before the
 220             standard lookups for Bengali were handled.
 221
 222             We now have the following order while searching for covered
 223             glyph indices.
 224
 225               special features of scripts (e.g. `sups' for Cyrillic)
 226               Unicode mappings of scripts
 227               remaining features of scripts (especially important for Indic
 228                 scripts)
 229               default features of default script
 230
 231         * src/autofit/afshaper.c, src/autofit/afshaper.h
 232         (af_shaper_get_coverage): Add boolean parameter to indicate default
 233         script.
 234         Update all callers.
 235
 236         * src/autofit/afglobal.c (af_face_globals_compute_style_coverage):
 237         Fix search order for coverages.
 238
 239 2016-01-19  Werner Lemberg  <wl@gnu.org>
 240
 241         Various minor clang fixes.
 242
 243         * src/autofit/afcjk.c (af_cjk_metrics_init_widths),
 244         src/autofit/aflatin.c (af_latin_metrics_init_widths): Initialize
 245         `ch'.
 246
 247         * src/base/ftcalc.c (FT_MulFix) [FT_LONG64]: Add cast.
 248
 249         * src/base/ftdbgmem.c (ft_mem_table_destroy): Add cast.
 250
 251         * src/base/fthash.c (hash_num_lookup): Add cast.
 252
 253         * src/base/fttrigon.c (ft_trig_downscale) [FT_LONG64]: Fix cast.
 254
 255         * src/gxvalid/gxvcommn.c (gxv_EntryTable_validate): Comment out
 256         redundant code.
 257
 258         * src/type1/t1driver.c (t1_get_ps_font_value) <PS_DICT_SUBR>: Add
 259         cast.
 260
 261         * src/type1/t1load.c (parse_subrs): Fix type of `count'.
 262
 263 2016-01-19  Derek B. Noonburg  <derekn@glyphandcog.com>
 264
 265         [truetype] Add another tricky font.
 266
 267         * src/truetype/ttobjs.c (TRICK_SFNT_IDS_NUM_FACES): Increase.
 268         (sfnt_id): Add variant of `DFKaiShu'.
 269
 270 2016-01-14  Alexei Podtelezhnikov  <apodtele@gmail.com>
 271
 272         [base] Empower `FT_Library_SetLcdFilterWeights'.
 273
 274         * src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights): Enable filter
 275         in addition to setting weights.
 276         (FT_Library_SetLcdFilter): Clean out FT_FORCE_LIGHT_LCD_FILTER and
 277         FT_FORCE_LEGACY_LCD_FILTER.
 278         * include/freetype/ftlcdfil.h: Documentation update.
 279
 280 2016-01-12  Werner Lemberg  <wl@gnu.org>
 281
 282         Don't use macro names that start with `_[A-Z]' [3/3].
 283
 284         Such macro names are reserved for both C and C++.
 285
 286         * src/cache/ftccache.h: s/_FTC_FACE_ID_HASH/FTC_FACE_ID_HASH/.
 287         Update all callers.
 288         (FTC_CACHE_LOOKUP_CMP): Replace `_XXX' with `XXX_'.
 289         * src/cache/ftcmru.c (FTC_MRULIST_LOOKUP_CMP): Ditto.
 290
 291 2016-01-12  Werner Lemberg  <wl@gnu.org>
 292
 293         Don't use macro names that start with `_[A-Z]' [2/3].
 294
 295         Such macro names are reserved for both C and C++.
 296
 297         * include/freetype/ftimage.h, src/raster/ftraster.c,
 298         src/smooth/ftgrays.c, src/smooth/ftgrays.h:
 299         s/_STANDALONE_/STANDALONE_/.
 300
 301 2016-01-12  Werner Lemberg  <wl@gnu.org>
 302
 303         Don't use macro names that start with `_[A-Z]' [1/3].
 304
 305         Such macro names are reserved for both C and C++.
 306
 307         * src/bdf/bdflib.c: Replace macros of the form `_BDF_XXX' with
 308         `BDF_XXX_'.
 309
 310 2016-01-12  Werner Lemberg  <wl@gnu.org>
 311
 312         Don't use macro names that contain `__' [2/2].
 313
 314         Such macro names are reserved for both C and C++.
 315
 316         * src/cache/*: s/__/_/.
 317
 318 2016-01-12  Werner Lemberg  <wl@gnu.org>
 319
 320         Don't use macro names that contain `__' [1/2].
 321
 322         Such macro names are reserved for both C and C++.
 323
 324         * */*: Replace macros of the form `__XXX_H__' with `XXX_H_'.
 325
 326 2016-01-10  Jered Gray  <jegray@google.com>
 327
 328         [cff] Fix usage of `|' operator.
 329
 330         * src/cff/cf2intrp.c (cf2_interpT2CharString) [cf2_cmdEXTENDEDNMBR,
 331         default]: `|' is not guaranteed to be processed from left to right
 332         by the compiler.  However, the code repeatedly calls
 333         `cf2_buf_readByte' to get the arguments to `|' ...  Fix this.
 334
 335 2015-12-25  Werner Lemberg  <wl@gnu.org>
 336
 337         [autofit] Make top-to-bottom hinting work in latin auto-hinter.
 338
 339         This improves rendering of scripts like Bengali or Devanagari.
 340
 341         * src/autofit/afhints.c (af_axis_hints_new_edge): Add parameter to
 342         pass top-to-bottom hinting flag.  This makes the function sort edges
 343         in descending vertical position.
 344
 345         * src/autofit/afhints.c: Updated.
 346
 347         * src/autofit/aflatin.c (af_latin_hints_compute_edges,
 348         af_latin_hint_edges): Use `top_to_bottom_hinting' flag.
 349
 350         * src/autofit/afcjk.c (af_cjk_hints_compute_edges),
 351         src/autofit/aflatin2.c (af_latin2_hints_compute_edges): Updated.
 352
 353 2015-12-24  Werner Lemberg  <wl@gnu.org>
 354
 355         [autofit] Add hinting direction to `AF_ScriptClassRec'.
 356
 357         Still unused.
 358
 359         * src/autofit/afglobal.c (SCRIPT): Handle hinting direction.
 360
 361         * src/autofit/aftypes.h (AF_ScriptClassRec): Add
 362         `top_to_bottom_hinting' field.
 363         (AF_HINTING_BOTTOM_TO_TOP, AF_HINTING_TOP_TO_BOTTOM): New macros.
 364         (AF_DEFINE_SCRIPT_CLASS): Updated.
 365
 366 2015-12-23  Werner Lemberg  <wl@gnu.org>
 367
 368         [autofit] Start implementing hinting direction (up/down, down/up).
 369
 370         Right now, it does nothing.
 371
 372         * src/autofit/afscript.h: Add another parameter to `SCRIPT',
 373         specifying hinting direction.
 374
 375         * src/autofit/afglobal.c, scr/autofit/afglobal.h,
 376         src/autofit/afpic.c, src/autofit/afranges.h, src/autofit/afshaper.c,
 377         src/autofit/aftypes.h: Extend `SCRIPT' definitions.
 378
 379 2015-12-22  Werner Lemberg  <wl@gnu.org>
 380
 381         * src/type1/t1load.c (parse_subrs): Fix memory leak (#46744).
 382
 383 2015-12-22  Werner Lemberg  <wl@gnu.org>
 384
 385         [base] Make hash interface symmetric.
 386
 387         Use `num' and `str' infixes everywhere.
 388
 389         * src/base/fthash.c (ft_hash_init): Renamed to...
 390         (hash_init): ... This.
 391         (ft_hash_str_init, ft_hash_num_init): New functions.
 392         (ft_hash_free): Renamed to...
 393         (ft_hash_str_free): ... This.
 394
 395         * include/freetype/internal/fthash.h: Updated.
 396
 397         * src/bdf/bdflib.c, src/type1/t1load.c, src/type1/t1objs.c: Updated.
 398
 399 2015-12-21  Werner Lemberg  <wl@gnu.org>
 400
 401         [type1] Avoid shift of negative numbers (#46732).
 402
 403         * src/type1/t1load.c (parse_subrs): Do it.
 404
 405 2015-12-20  Werner Lemberg  <wl@gnu.org>
 406
 407         [type1, psaux] Handle large values of num_subrs correctly (#46692).
 408
 409         We now use a hash to map from subr indices to array elements holding
 410         the subroutines, if necessary.
 411
 412         * include/freetype/internal/t1types.h: Include FT_INTERNAL_HASH_H.
 413         (T1_FontRec): Add `subrs_hash' field.
 414
 415         * include/freetype/internal/psaux.h: Include FT_INTERNAL_HASH_H.
 416         (T1_DecoderRec): Add `subrs_hash' field.
 417
 418         * src/type1/t1load.h (T1_LoaderRec): Add `subrs_hash' field.
 419
 420         * src/type1/t1driver.c: Include FT_INTERNAL_HASH_H.
 421         (t1_ps_get_font_value) [PS_DICT_SUBR]: Look up hash if necessary.
 422
 423         * src/type1/t1load.c: Include FT_INTERNAL_HASH_H.
 424         (parse_subrs): Use hash for subr indices that exceed the allocated
 425         number of subr slots.
 426         (t1_init_loader): Remove unnecessary code.
 427         (t1_done_loader, T1_Open_Face): Updated.
 428
 429         * src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances,
 430         T1_Load_Glyph): Updated.
 431
 432         * src/type1/t1objs.c (T1_Face_Done): Updated.
 433
 434         * src/psaux/t1decode.c: Include FT_INTERNAL_HASH_H.
 435         (t1_decoder_parse_charstrings) [op_callsubr]: Look up hash if
 436         necessary.
 437
 438         * src/cid/cidgload.c (cid_load_glyph): Updated.
 439
 440 2015-12-20  Werner Lemberg  <wl@gnu.org>
 441
 442         [base] Thinko: Remove free function pointer.
 443
 444         We don't copy keys or values while hashing.
 445
 446         * include/freetype/internal/fthash.h (FT_Hash_FreeFunc): Removed.
 447         (FT_HashRec): Remove `free' field.
 448
 449         * src/base/fthash.c (hash_str_free): Removed.
 450         (ft_hash_init, ft_hash_free): Updated.
 451
 452 2015-12-20  Werner Lemberg  <wl@gnu.org>
 453
 454         [base, bdf] Don't expose `FT_Hashnode' in hash functions.
 455
 456         * src/base/fthash.c (hash_lookup, ft_hash_str_lookup,
 457         ft_hash_num_lookup): Return pointer to `size_t' instead of
 458         `FT_Hashnode'.
 459
 460         * include/freetype/internal/fthash.h: Updated.
 461
 462         * src/bdf/bdflib.c (bdf_get_property, _bdf_add_property,
 463         bdf_get_font_property): Updated.
 464
 465 2015-12-20  Werner Lemberg  <wl@gnu.org>
 466
 467         [base, bdf] Add number hashing.
 468
 469         * src/base/fthash.c (hash_num_lookup, hash_num_compare): New
 470         functions.
 471         (ft_hash_init): Add argument to select between number and string
 472         hashing.
 473         (ft_hash_num_insert, ft_hash_num_lookup): New functions.
 474
 475         * include/freetype/internal/fthash.h: Updated.
 476
 477         * src/bdf/bdflib.c (_bdf_parse_start): Updated.
 478
 479 2015-12-20  Werner Lemberg  <wl@gnu.org>
 480
 481         [base] Introduce hash lookup, compare, and free function pointers.
 482
 483         * include/freetype/internal/fthash.c (FT_Hash_LookupFunc,
 484         FT_Hash_CompareFunc, FT_Hash_FreeFunc): New typedefs.
 485         (FT_HashRec): Add `lookup', `compare', and `free' fields.
 486
 487         * src/base/fthash.c (hash_str_lookup, hash_str_compare,
 488         hash_str_free): New functions.
 489         (ft_hash_init): Set function pointers.
 490         (hash_bucket, ft_hash_free): Use them.
 491
 492 2015-12-20  Werner Lemberg  <wl@gnu.org>
 493
 494         [base, bdf] Use a union as a hash key.
 495
 496         We want to support both an integer and a string key later on.
 497
 498         * include/freetype/internal/fthash.h (FT_Hashkey): New union.
 499         (FT_HashnodeRec): Updated.
 500         (ft_hash_insert, ft_hash_lookup): Renamed to ...
 501         (ft_hash_str_insert, ft_hash_str_lookup): ... this.
 502
 503         * src/base/fthash.c (hash_bucket): Updated.
 504         (ft_hash_insert, ft_hash_lookup): Renamed to ...
 505         (hash_insert, hash_lookup): ... this.
 506         (ft_hash_str_insert, ft_hash_str_lookup): New wrapper functions.
 507
 508         * src/bdf/bdflib.c: Updated.
 509
 510 2015-12-19  Werner Lemberg  <wl@gnu.org>
 511
 512         [bdf] Use new hash functions.
 513
 514         * src/bdf/bdf.h: Include FT_INTERNAL_HASH_H.
 515         (hashnode, hashtable): Removed.
 516         (bdf_font_t): Use `FT_HashRec' type for `proptbl'.
 517
 518         * src/bdf/bdflib.c: Remove all hash functions.
 519         Update code for new hash structure and function names.
 520
 521 2015-12-19  Werner Lemberg  <wl@gnu.org>
 522
 523         [bdf, base] Lift hash functions from bdf driver to base module.
 524
 525         * src/base/fthash.c, include/freetype/internal/fthash.h: New files,
 526         containing (massaged) code from `bdflib.c' and `bdf.h'.
 527
 528         * include/freetype/internal/internal.h (FT_INTERNAL_HASH_H): New
 529         macro.
 530
 531         * src/base/ftbase.c: Include `fthash.c'.
 532
 533         * src/base/Jamfile (_sources): Add `fthash'.
 534
 535         * src/base/rules.mk (BASE_SRC): Add `fthash.c'.
 536
 537         * docs/LICENSE.TXT: Updated.
 538
 539 2015-12-15  Werner Lemberg  <wl@gnu.org>
 540
 541         [autofit] Add blue-zone support for Bengali script.
 542
 543         This essentially moves the Bengali script from the `Indic' hinter to
 544         the `Latin' hinter.
 545
 546         * src/autofit/afblue.dat: Add blue zone data for Bengali.
 547
 548         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
 549
 550         * src/autofit/afscript.h: Add Bengali standard characters and move
 551         data out of AF_CONFIG_OPTION_INDIC block.
 552
 553         * src/autofit/afranges.c: Move Bengali data out of
 554         AF_CONFIG_OPTION_INDIC block.
 555
 556         * src/autofit/afstyles.h: Update Bengali data; in particular, use
 557         AF_WRITING_SYSTEM_LATIN.
 558
 559 2015-12-14  Ben Wagner  <bungeman@gmail.com>
 560
 561         [bdf] Remove dead code (#46625).
 562
 563         The BDF specification only allows decimal numbers, no octal or
 564         hexidecimal decoding is needed.
 565
 566         * src/bdf/bdflib.c (_bdf_atoul, _bdf_atol, _bdf_atous,
 567         _bdf_atos): Remove unused code and parameters.
 568         Update all callers.
 569         (odigits): Remove.
 570
 571 2015-12-14  Werner Lemberg  <wl@gnu.org>
 572
 573         [base] Fix calls to `FT_Stream_Seek'.
 574
 575         * src/base/ftobjs.c (Mac_Read_sfnt_Resource, FT_Open_Face): Set
 576         `error'.
 577
 578 2015-12-14  Ben Wagner <bungeman@gmail.com>
 579
 580         [base] Check error when seeking to data supplied offset (#46635).
 581
 582         * src/base/ftobjs.c (open_face_PS_from_sfnt_stream):
 583         `ft_lookup_PS_in_sfnt_stream' returns offset and and length from
 584         user supplied data.  Use of this these values must be checked.
 585
 586 2015-12-13  Werner Lemberg  <wl@gnu.org>
 587
 588         [autofit] Add support for Myanmar script.
 589
 590         * src/autofit/afblue.dat: Add blue zone data for Myanmar.
 591
 592         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
 593
 594         * src/autofit/afscript.h: Add Myanmar standard characters.
 595
 596         * src/autofit/afranges.c: Add Myanmar data.
 597
 598         * src/autofit/afstyles.h: Add Myanmar data.
 599
 600 2015-12-12  Werner Lemberg  <wl@gnu.org>
 601
 602         * src/autofit/aflatin.c (af_latin_metrics_init_blues): Minor.
 603
 604 2015-12-12  Werner Lemberg  <wl@gnu.org>
 605
 606         * src/autofit/afscript.h: Avoid potential crash.
 607
 608 2015-12-10  Werner Lemberg  <wl@gnu.org>
 609
 610         [autofit] Restore OpenType feature check.
 611
 612         This was removed while rewriting the HarfBuzz interface.
 613
 614         * src/autofit/afglobal.h (AF_FaceGlobalsRec): Add `hb_buf' field to
 615         hold internal HarfBuzz buffer, needed for feature comparison.
 616
 617         * src/autofit/afglobal.c (af_face_globals_new,
 618         af_face_globals_free): Initialize and destroy `hb_buf'.
 619
 620         * src/autofit/afshaper.c (af_shaper_get_cluster): Compare character
 621         (cluster) with and without applied feature.
 622
 623         * src/autofit/aflatin.c (af_latin_metrics_init_blues): Fix tracing
 624         message.
 625
 626 2015-12-10  Werner Lemberg  <wl@gnu.org>
 627
 628         [autofit] Remove redundant code.
 629
 630         * src/autofit/aflatin.c (af_latin_metrics_init_widths): Do it.
 631
 632 2015-12-09  Werner Lemberg  <wl@gnu.org>
 633
 634         [autofit] Thinko.
 635
 636         * src/autofit/aflatin.c (af_latin_metrics_init_blues): Don't count
 637         empty blue zones (bug introduced 2015-12-06).
 638
 639 2015-12-09  Werner Lemberg  <wl@gnu.org>
 640
 641         [autofit] Introduce subscript top blue zones.
 642
 643         This feature is mainly for Khmer: The idea is to avoid a clash
 644         between the top of subscript glyphs and the bottom of normal
 645         baseline glyphs.
 646
 647         This only works for character clusters mapped to multiple glyphs.
 648
 649         * src/autofit/afblue.dat: Add subscript top blue zone for Khmer.
 650
 651         * src/autofit/afblue.hin (AF_BLUE_PROPERTY_LATIN_SUB_TOP): New
 652         macro.
 653
 654         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
 655
 656         * src/autofit/aflatin.h (AF_LATIN_IS_SUB_TOP_BLUE,
 657         AF_LATIN_BLUE_SUB_TOP): New macros.
 658
 659         * src/autofit/aflatin.c (af_latin_metrics_init_blues): Handle new
 660         blue zone property.
 661         Update tracing messages.
 662         (af_latin_metrics_scale_dim): Handle new blue zone property.
 663         (af_latin_hints_compute_blue_edges): Updated.
 664
 665 2015-12-09  Werner Lemberg  <wl@gnu.org>
 666
 667         [autofit] Fix tracing message.
 668
 669         * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Display
 670         inactive blue zones also.
 671
 672 2015-12-06  Werner Lemberg  <wl@gnu.org>
 673
 674         * src/autofit/afblue.dat: Add more Khmer clusters.
 675
 676         Some fonts have incorrect ligatures; we need more samples to get a
 677         good mean value.
 678
 679         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
 680
 681 2015-12-06  Werner Lemberg  <wl@gnu.org>
 682
 683         [autofit] Typos.
 684
 685         * src/autofit/afshaper.c (af_shaper_buf_create, af_shaper_get_elem)
 686         [!FT_CONFIG_OPTION_USE_HARFBUZZ]: Make it compile.
 687
 688 2015-12-06  Werner Lemberg  <wl@gnu.org>
 689
 690         [autofit] Add support for Khmer script.
 691
 692         We split Khmer into two auto-hinter scripts: `Khmer' (`khmr') and
 693         `Khmer symbols' (`khms', U+19E0-U+19FF).
 694
 695         * src/autofit/afblue.dat: Add blue zone data for Khmer.
 696
 697         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
 698
 699         * src/autofit/afscript.h: Add Khmer standard characters.
 700
 701         * src/autofit/afranges.c: Add Khmer data.
 702
 703         * src/autofit/afstyles.h: Add Khmer data.
 704
 705 2015-12-06  Werner Lemberg  <wl@gnu.org>
 706
 707         [autofit] Rewrite HarfBuzz interface to support character clusters.
 708
 709         Scripts like Khmer have blue zones that can't be directly
 710         represented by Unicode characters.  Instead, it is necessary to let
 711         HarfBuzz convert character clusters into proper glyph representation
 712         forms, then deriving the blue zone information from the resulting
 713         glyphs.
 714
 715         * src/autofit/hbshim.c, src/autofit/hbshim.h: Replaced by...
 716         * src/autofit/afshaper.c, src/autofit/afshaper.h: ... these two new
 717         files, providing a new API to access HarfBuzz.
 718
 719         The new API manages a HarfBuzz buffer with `af_shaper_buf_create'
 720         and `af_shaper_buf_destroy'.  The buffer receives a UTF8 encoded
 721         string with function `af_shaper_get_cluster', and the resulting
 722         glyph data (indices, advance widths, vertical offsets) can be
 723         iteratively accessed with function `af_shaper_get_elem'.
 724
 725         * src/autofit/afcjk.c (af_cjk_metrics_init_widths,
 726         af_cjk_metrics_init_blues, af_cjk_metrics_check_digits): Updated.
 727
 728         * src/autofit/aflatin.c (af_latin_metrics_init_widths,
 729         af_latin_metrics_init_blues, af_latin_metrics_check_digits):
 730         Updated.
 731
 732         * include/freetype/internal/fttrace.h: s/afharfbuzz/afshaper/.
 733
 734         * src/autofit/afglobal.c: s/hbshim.h/afshaper.h/.
 735         (af_face_globals_compute_style_coverage): Updated.
 736
 737         * src/autofit/afglocal.h: s/hbshim.h/afshaper.h/.
 738
 739         * src/autofit/autofit.c: s/hbshim.c/afshaper.c/.
 740
 741         * src/autofit/Jamfile, src/autofit/rules.mk (AUTOF_DRV_SRC):
 742         Updated.
 743
 744 2015-12-06  Werner Lemberg  <wl@gnu.org>
 745
 746         [autofit] Prepare forthcoming changes.
 747
 748         This makes it easier to control the commits.
 749
 750         * src/autofit/aflatin.c (af_latin_metrics_init_blues): Add dummy
 751         loop.  No functional change.
 752
 753 2015-12-06  Werner Lemberg  <wl@gnu.org>
 754
 755         [autofit] Use string of standard characters.
 756
 757         This is more flexible; additionally, it would allow character
 758         clusters.
 759
 760         * src/autofit/aftypes.h (SCRIPT, AF_DEFINE_SCRIPT_CLASS): Updated.
 761         (AF_ScriptClassRec): Replace `standard_char[123]' with
 762         `standard_charstring'.
 763
 764         * src/autofit/afscript.h: Replace last three character arguments
 765         of the `SCRIPT' calls with a string parameter, holding the standard
 766         characters (in UTF-8 encoding) separated with spaces.
 767
 768         * src/autofit/afglobal.c, src/autofit/afglobal.h,
 769         src/autofit/afpic.c, src/autofit/afranges.c, src/autofit/hbshim.c
 770         (SCRIPT): Updated.
 771
 772         * src/autofit/afcjk.c (af_cjk_metrics_init_widths),
 773         src/autofit/aflatin.c (af_latin_metrics_init_widths): Updated.
 774
 775 2015-12-05  Werner Lemberg  <wl@gnu.org>
 776
 777         * src/autofit/afblue.dat: Separate blue zone characters with spaces.
 778
 779         Another preparation for character cluster support.
 780
 781         * src/autofit/afblue.c, src/autofit.afblue.h: Regenerated.
 782
 783 2015-12-05  Werner Lemberg  <wl@gnu.org>
 784
 785         * src/tools/afblue.pl (convert_ascii_chars): Don't ignore spaces.
 786
 787         Instead, reduce multiple spaces to a single one.  We need this later
 788         for supporting character clusters in `afblue.dat'.
 789
 790 2015-12-05  Werner Lemberg  <wl@gnu.org>
 791
 792         * src/autofit/afblue.hin (GET_UTF8_CHAR): Use `do...while(0)'.
 793
 794         * src/autofit/afblue.h: Regenerated.
 795
 796 2015-12-05  Werner Lemberg  <wl@gnu.org>
 797
 798         * src/autofit/afwarp.c: s/INT_MIN/FT_INT_MIN/.
 799
 800 2015-12-03  Werner Lemberg  <wl@gnu.org>
 801
 802         * builds/unix/install.mk (install): Remove stale `ft2build.h'.
 803
 804 2015-12-01  Werner Lemberg  <wl@gnu.org>
 805
 806         [type1] Avoid dangling pointer (#46572).
 807
 808         * src/type1/t1afm.c (T1_Read_Metrics): Properly reset
 809         `face->afm_data'.
 810
 811 2015-11-28  Alexei Podtelezhnikov  <apodtele@gmail.com>
 812
 813         * include/freetype/ftlcdfil.h: Documentation tweak.
 814
 815 2015-11-28  Werner Lemberg  <wl@gnu.org>
 816
 817         * Version 2.6.2 released.
 818         =========================
 819
 820
 821         Tag sources with `VER-2-6-2'.
 822
 823         * docs/VERSION.DLL: Update documentation and bump version number to
 824         2.6.2.
 825
 826         * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
 827         builds/windows/vc2005/index.html,
 828         builds/windows/vc2008/freetype.vcproj,
 829         builds/windows/vc2008/index.html,
 830         builds/windows/vc2010/freetype.vcxproj,
 831         builds/windows/vc2010/index.html,
 832         builds/windows/visualc/freetype.dsp,
 833         builds/windows/visualc/freetype.vcproj,
 834         builds/windows/visualc/index.html,
 835         builds/windows/visualce/freetype.dsp,
 836         builds/windows/visualce/freetype.vcproj,
 837         builds/windows/visualce/index.html,
 838         builds/wince/vc2005-ce/freetype.vcproj,
 839         builds/wince/vc2005-ce/index.html,
 840         builds/wince/vc2008-ce/freetype.vcproj,
 841         builds/wince/vc2008-ce/index.html: s/2.6.1/2.6.2/, s/261/262/.
 842
 843         * include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.
 844
 845         * builds/unix/configure.raw (version_info): Set to 18:2:12.
 846         * CMakeLists.txt (VERSION_PATCH): Set to 2.
 847
 848         * docs/CHANGES: Updated.
 849
 850 2015-11-28  Werner Lemberg  <wl@gnu.org>
 851
 852         Fix C++ compilation.
 853
 854         * src/autofit/afloader.c: Include FT_INTERNAL_CALC_H.
 855
 856         * src/truetype/ttgload.c (load_truetype_glyph): Pacify compiler.
 857
 858 2015-11-28  Nikolaus Waxweiler  <madigens@gmail.com>
 859
 860         Change default LCD filter to be normalized and color-balanced.
 861
 862         * src/base/ftlcdfil.c (FT_Library_SetLcdFilter): Update
 863         `default_filter'.
 864
 865 2015-11-28  Werner Lemberg  <wl@gnu.org>
 866
 867         [docmaker] Allow references to section names.
 868
 869         In the reference, we show the section's title enclosed in single
 870         quotes.
 871
 872         * src/tools/docmaker/formatter.py (Formatter::__init__): Collect
 873         section names as identifiers.
 874
 875         * src/tools/docmaker/tohtml.py (section_title_header): Split into...
 876         (section_title_header1, section_title_header2): ... these two
 877         strings.
 878         (HtmlFormatter::make_block_url, make_html_word, html_source_quote):
 879         Handle sections.
 880         (HtmlFormatter::section_enter): Updated to add `id' HTML attribute.
 881
 882 2015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
 883
 884         [cmake] Add script to test the config module.
 885
 886         * builds/cmake/testbuild.sh: New file.
 887
 888 2015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
 889
 890         * CMakeLists.txt: Create `freetype-config.cmake' config module.
 891
 892 2015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
 893
 894         * CMakeLists.txt: Set CMAKE_DEBUG_POSTFIX to `d'.
 895
 896 2015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
 897
 898         [cmake] Add better control of library dependencies.
 899
 900         * CMakeLists.txt: Add `WITH_*' variables to force/auto/omit
 901         ZLIB/BZip2/PNG/HarfBuzz.
 902
 903 2015-11-27  Tamas Kenez  <tamas.kenez@adasworks.com>
 904
 905         [cmake] Make `FindHarfbuzz' observe the REQUIRED option.
 906
 907         * builds/cmake/FindHarfBuzz.cmake: Implement it.
 908
 909 2015-11-27  Werner Lemberg  <wl@gnu.org>
 910
 911         [cmake] Collect files specific to cmake in `builds/cmake'.
 912
 913         * builds/FindHarfBuzz.cmake: Move to ...
 914         * builds/cmake/FindHarfBuzz.cmake: ... this place.
 915
 916         * CMakeLists.txt (CMAKE_MODULE_PATH): Updated.
 917
 918 2015-11-27  Alexander Bock  <alexander.j.bock@nasa.gov>
 919
 920         CMakeLists.txt: Honour new command line flag `FREETYPE_NO_DIST'.
 921
 922 2015-11-26  Werner Lemberg  <wl@gnu.org>
 923
 924         [docmaker] Allow `foo[bar]' as identifier.
 925
 926         We need this to handle equally named properties in different
 927         modules.
 928
 929         * src/tools/docmaker/content.py (re_identifier),
 930         src/tools/docmaker/sources.py (re_crossref): Allow `foo[bar]'.
 931
 932         * src/tools/docmaker/tohtml.py (HtmlFormatter::make_html_word,
 933         HtmlFormatter::index_exit, HtmlFormatter::section_enter,
 934         HtmlFormatter::block_enter): Handle `foo[bar]'.
 935
 936 2015-11-25  Werner Lemberg  <wl@gnu.org>
 937
 938         * src/bdf/bdflib.c (bdf_load_font): Fix small memory leak (#46480).
 939
 940         (_bdf_parse_glyphs): Always reset `p->glyph_name' after moving its
 941         contents.
 942
 943 2015-11-21  Werner Lemberg  <wl@gnu.org>
 944
 945         * include/freetype/internal/ftcalc.h: Don't use `register' keyword.
 946
 947         This fixes compiler warnings.
 948
 949         Reported by Behdad.
 950
 951 2015-11-20  Werner Lemberg  <wl@gnu.org>
 952
 953         Add `FT_LCD_FILTER_LEGACY1' enum value.
 954
 955         This does the same as `FT_LCD_FILTER_LEGACY'.
 956
 957         See
 958
 959           https://bugs.freedesktop.org/show_bug.cgi?id=92981
 960
 961         for the reasoning.
 962
 963         * include/freetype/ftlcdfil.h (FT_LcdFilter): New value
 964         `FT_LCD_FILTER_LEGACY1'.
 965
 966         * src/base/ftlcdfil.c (FT_Library_SetLcdFilter): Use it.
 967
 968 2015-11-15  Werner Lemberg  <wl@gnu.org>
 969
 970         * src/autofit/afhints.c (af_get_segment_index): Fix it.
 971
 972         The old code was too simple, returning invalid values in most cases
 973         where a segment crosses the contour start.
 974
 975 2015-11-15  Werner Lemberg  <wl@gnu.org>
 976
 977         * src/bdf/bdflib.c (bdf_load_font): Fix small memory leak (#46439).
 978
 979 2015-11-11  Werner Lemberg  <wl@gnu.org>
 980
 981         [cff, autofit] Switch off stem darkening by default.
 982
 983         * src/autofit/afmodule.c (af_autofitter_init), src/cff/cffobjs.c
 984         (cff_driver_init): Do it.
 985
 986 2015-11-10  Jan Alexander Steffens (heftig)  <jan.steffens@gmail.com>
 987
 988         Allow native CFF hinter in FT_RENDER_MODE_LIGHT.
 989
 990         Both the native CFF hinter and the auto-hinter now have a very
 991         similar rendering style.
 992
 993         * include/freetype/freetype.h: Mention that FT_LOAD_TARGET_LIGHT no
 994         longer implies FT_LOAD_FORCE_AUTOHINT.
 995
 996         * include/freetype/ftmodapi.h (FT_MODULE_DRIVER_HINTS_LIGHTLY): New
 997         macro.
 998
 999         * include/freetype/internal/ftobjs.h (FT_DRIVER_HINTS_LIGHTLY): New
1000         macro.
1001
1002         * src/cff/cffdrivr.c (cff_driver_class): Use it.
1003
1004         * src/base/ftobjs.c (FT_Load_Glyph): Update auto-hinter selection
1005         logic.
1006
1007 2015-11-09  Werner Lemberg  <wl@gnu.org>
1008
1009         * src/cid/cidload.c (cid_face_open): Fix GDBytes guard (#46408).
1010
1011 2015-11-09  Werner Lemberg  <wl@gnu.org>
1012
1013         [truetype] Remove integer to pointer conversion compiler warning.
1014
1015         Problem reported by Alexei.
1016
1017         * src/truetype/ttgload.c (load_truetype_glyph): Use a solution found
1018         in the glib library to fix the issue.
1019
1020 2015-11-08  Behdad Esfahbod  <behdad@behdad.org>
1021
1022         [sfnt] Accept version 3 of `EBLC' and `CBLC' tables also.
1023
1024         * src/sfnt/ttsbit.c (tt_face_load_sbit): Implement it.
1025
1026 2015-11-08  Philipp Knechtges  <philipp-dev@knechtges.com>
1027
1028         [autofit] Don't distort (latin) glyphs too much (#46195).
1029
1030         * src/autofit/aflatin.h (AF_LatinBlueRec): Add `ascender' and
1031         `descender' fields.
1032
1033         * src/autofit/aflatin.c (af_latin_metrics_init_blues): Collect
1034         ascender and descender data for blue zones.
1035         (af_latin_metrics_scale_dim): Reject vertical scaling values that
1036         change the result by more than two pixels.
1037
1038 2015-11-05  Werner Lemberg  <wl@gnu.org>
1039
1040         [sfnt] Ignore embedded bitmaps with zero size (#46379).
1041
1042         * src/sfnt/ttsbit.c (tt_sbit_decoder_load_bit_aligned): Implement
1043         it.
1044
1045 2015-11-04  Werner Lemberg  <wl@gnu.org>
1046
1047         [truetype] Catch infinite recursion in subglyphs (#46372).
1048
1049         * include/freetype/internal/tttypes.h (TT_LoaderRec): New field
1050         `composites'.
1051
1052         * src/truetype/ttgload.c: Include FT_LIST_H.
1053         (load_truetype_glyph): Add composite subglyph index to a list;
1054         abort if index is already in list.
1055         (tt_loader_init): Updated.
1056         (tt_loader_done): New function.
1057         (TT_Load_Glyph): Call `tt_loader_done'.
1058
1059 2015-11-04  Werner Lemberg  <wl@gnu.org>
1060
1061         [truetype] Better tracing of composite glyphs.
1062
1063         * src/truetype/ttgload.c (TT_Load_Composite_Glyph,
1064         load_truetype_glyph): Implement it.
1065
1066 2015-11-03  Werner Lemberg  <wl@gnu.org>
1067
1068         [sfnt] Protect against zero-size bitmaps (#46345).
1069
1070         * src/sfnt/ttsbit.c (tt_sbit_decoder_load_bitmap): Check
1071         `glyph_size'.
1072
1073 2015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
1074
1075         * src/autofit/afloader.c (af_loader_load_g): Implement emboldening.
1076
1077 2015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
1078
1079         [autofit] Implement darkening computation function.
1080
1081         This is a crude adaption of the original `cf2_computeDarkening'
1082         function.
1083
1084         * src/autofit/afloader.c (af_intToFixed, af_fixedToInt,
1085         af_floatToFixed): New macros, taken from `cf2fixed.h'.
1086         (af_loader_compute_darkening): New function.
1087         * src/autofit/afloader.h: Updated.
1088
1089 2015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
1090
1091         [autofit] Add functions to get standard widths for writing systems.
1092
1093         We need the computed standard horizontal and vertical widths for the
1094         emboldening calculation.  This method provides a convenient way to
1095         extract it from writing-system-specific metrics structures, which
1096         all script definitions must implement.
1097
1098         * src/autofit/aftypes.h (AF_WritingSystem_GetStdWidthsFunc): New
1099         function type.
1100         (AF_WritingSystemClassRec): New member `style_metrics_getstdw'.
1101         (AF_DEFINE_WRITING_SYSTEM_CLASS): Updated.
1102
1103         * src/autofit/afcjk.c (af_cjk_get_standard_width): New function.
1104         (af_cjk_writing_system_class): Updated.
1105         * src/autofit/afdummy.c (af_dummy_writing_system_class): Updated.
1106         * src/autofit/afindic.c (af_cjk_get_standard_width): New function.
1107         (af_indic_writing_system_class): Updated.
1108         * src/autofit/aflatin.c (af_latin_get_standard_width): New function.
1109         (af_indic_writing_system_class): Updated.
1110         * src/autofit/aflatin.c (af_latin_get_standard_width): New function.
1111         (af_indic_writing_system_class): Updated.
1112
1113 2015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
1114
1115         [autofit] Extend `AF_FaceGlobalsRec' to hold emboldening data.
1116
1117         * src/autofit/afglobal.h (AF_FaceGlobalsRec): Add fields.
1118
1119         * src/autofit/afglobal.c (af_face_globals_new): Initialize new
1120         fields.
1121         (af_face_globals_free): Reset new fields.
1122
1123 2015-11-02  Nikolaus Waxweiler  <madigens@gmail.com>
1124
1125         [autofit] Add stem-darkening properties.
1126
1127         Actual code follows in a later commit.
1128
1129         * include/freetype/ftautoh.h: Document `no-stem-darkening' and
1130         `darkening-parameters'.
1131
1132         * src/autofit/afmodule.h: New fields `no_stem_darkening' and
1133         `darken_params'.
1134
1135         * src/autofit/afmodule.c (af_property_set, af_property_get):
1136         Handle them.
1137         (af_autofitter_init): Initialize them.
1138
1139 2015-11-02  Ben Wagner  <bungeman@gmail.com>
1140
1141         [ftfuzzer] Add support for multiple files (patch #8779).
1142
1143         Currently, libFuzzer only supports mutation of a single file.  We
1144         circumvent this problem by using an uncompressed tar archive as
1145         multiple-file input for the fuzzer.
1146
1147         This patch enables tests of `FT_Attach_Stream' and AFM/PFM parsing;
1148         a constructed tarball should contain a font file as the first
1149         element, and files to be attached as further elements.
1150
1151         * src/tools/ftfuzzer/ftfuzzer.cc: Include libarchive headers.
1152         (archive_read_entry_data, parse_data): New functions.
1153         (LLVMFuzzerTestOneInput): Updated.
1154
1155         * src/tools/ftfuzzer/ftmutator.cc: New file, providing a custom
1156         mutator for libFuzzer that can mutate tarballs in a sensible way.
1157
1158 2015-10-31  Werner Lemberg  <wl@gnu.org>
1159
1160         [sfnt] Fix cmap 14 validation (#46346).
1161
1162         * src/sfnt/ttcmap.c (tt_cmap14_validate): Check limit before
1163         accessing `numRanges' and `numMappings'.
1164         Fix size check for non-default UVS table.
1165
1166 2015-10-31  Werner Lemberg  <wl@gnu.org>
1167
1168         [sfnt] Handle infinite recursion in bitmap strikes (#46344).
1169
1170         * src/sfnt/ttsbit.c (TT_SBitDecoder_LoadFunc,
1171         tt_sbit_decoder_load_bitmap, tt_sbit_decoder_load_byte_aligned,
1172         tt_sbit_decoder_load_bit_aligned, tt_sbit_decoder_load_png): Add
1173         argument for recursion depth.
1174         (tt_sbit_decoder_load_compound): Add argument for recursion depth.
1175         Increase recursion counter for recursive call.
1176         (tt_sbit_decoder_load_image): Add argument for recursion depth.
1177         Check recurse depth.
1178         (tt_face_load_sbit_image): Updated.
1179
1180 2015-10-29  Werner Lemberg  <wl@gnu.org>
1181
1182         * src/autofit/afhints.c (af_glyph_hints_dump_points): Minor.
1183
1184 2015-10-29  Werner Lemberg  <wl@gnu.org>
1185
1186         * CMakeLists.txt: Remove code to set MSVC's /FD compiler switch.
1187
1188         Problem reported by David Capello <davidcapello@gmail.com>; see
1189
1190           http://lists.nongnu.org/archive/html/freetype-devel/2015-10/msg00108.html
1191
1192         for details.
1193
1194 2015-10-27  Werner Lemberg  <wl@gnu.org>
1195
1196         [pfr] Add some safety guards (#46302).
1197
1198         * src/pfr/pfrload.h (PFR_CHECK): Rename to...
1199         (PFR_CHECK_SIZE): ... this.
1200         (PFR_SIZE): [!PFR_CONFIG_NO_CHECKS]: Define to PFR_CHECK_SIZE.
1201
1202         * src/pfr/pfrload.c (pfr_log_font_count): Check `count'.
1203         (pfr_extra_item_load_kerning_pairs): Remove tracing message.
1204         (pfr_phy_font_load): Use PFR_CHECK_SIZE where appropriate.
1205         Allocate `chars' after doing a size checks.
1206
1207         * src/pfr/pfrsbit.c (pfr_load_bitmap_bits): Move test for invalid
1208         bitmap format to...
1209         (pfr_slot_load_bitmap): ... this function.
1210         Check bitmap size.
1211
1212 2015-10-26  Werner Lemberg  <wl@gnu.org>
1213
1214         [truetype] Fix sanitizing logic for `loca' (#46223).
1215
1216         * src/truetype/ttpload.c (tt_face_load_loca): A thinko caused an
1217         incorrect adjustment of the number of glyphs, most often using far
1218         too large values.
1219
1220 2015-10-25  Werner Lemberg  <wl@gnu.org>
1221
1222         [autofit] Improve tracing.
1223
1224         * src/autofit/afhints.c (af_print_idx, af_get_segment_index,
1225         af_get_edge_index): New functions.
1226
1227         (af_glyph_hints_dump_points): Remove unnecessary `|', `[', and `]'.
1228         Add segment and edge index for each point.
1229         Slightly change printing order of some elements.
1230         Don't print `-1' but `--' for missing elements.
1231
1232         (af_glyph_hints_dump_segments, af_glyph_hints_dump_edges): Remove
1233         unnecessary `|', `[', and `]'.
1234         Don't print `-1' but `--' for missing elements.
1235
1236 2015-10-24  Werner Lemberg  <wl@gnu.org>
1237
1238         [sfnt] Sanitize bitmap strike glyph height.
1239
1240         Problem reported by Nikolay Sivov <bunglehead@gmail.com>.
1241
1242         * src/sfnt/ttsbit.c (tt_face_load_strike_metrics): Avoid zero value
1243         for `metrics->height' by applying some heuristics.
1244
1245 2015-10-22  Werner Lemberg  <wl@gnu.org>
1246
1247         [sfnt, type42] Fix clang compiler warnings.
1248
1249         * src/sfnt/sfobjs.c (sfnt_init_face): Initialize `offset'.
1250
1251         * src/type42/t42parse.c (t42_parse_sfnts): Use proper cast.
1252
1253 2015-10-22  Dave Arnold  <darnold@adobe.com>
1254             Werner Lemberg  <wl@gnu.org>
1255
1256         [cff] Avoid overflow/module arithmetic.
1257
1258         This modifies the addition of subroutine number to subroutine bias
1259         from unsigned to signed, but does not change any results.
1260
1261         * src/cff/cf2ft.c (cf2_initGlobalRegionBuffer,
1262         cf2_initLocalRegionBuffer): Change variable names from (unsigned)
1263         `idx' to (signed) `subrNum', since it is not an index until after
1264         the bias is added.
1265         * src/cff/cf2ft.h: Updated.
1266
1267         * src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdCALLSUBR>:
1268         Updated similarly.
1269
1270 2015-10-22  Werner Lemberg  <wl@gnu.org>
1271
1272         [cid] Better check of `SubrCount' dictionary entry (#46272).
1273
1274         * src/cid/cidload.c (cid_face_open): Add more sanity tests for
1275         `fd_bytes', `gd_bytes', `sd_bytes', and `num_subrs'.
1276
1277 2015-10-21  Werner Lemberg  <wl@gnu.org>
1278
1279         [base] Pacify compiler (#46266).
1280
1281         * src/base/ftoutln.c (FT_Outline_EmboldenXY): Initialize `in' and
1282         `anchor'.
1283
1284 2015-10-21  Werner Lemberg  <wl@gnu.org>
1285
1286         [type42] Fix heap buffer overflow (#46269).
1287
1288         * src/type42/t42parse.c (t42_parse_sfnts): Fix off-by-one error in
1289         bounds checking.
1290
1291 2015-10-21  Dave Arnold  <darnold@adobe.com>
1292
1293         [cff] Fix limit in assert for max hints.
1294
1295         * src/cff/cf2interp.c (cf2_hintmask_setAll): Allow mask equal to the
1296         limit (96 bits).
1297
1298 2015-10-21  Dave Arnold  <darnold@adobe.com>
1299
1300         [cff] Remove an assert (#46107).
1301
1302         * src/cff/cf2hints.c (cf2_hintmap_insertHint): Ignore paired edges
1303         in wrong order.
1304
1305 2015-10-21  Werner Lemberg  <wl@gnu.org>
1306
1307         [sfnt] Avoid unnecessarily large allocation for WOFFs (#46257).
1308
1309         * src/sfnt/sfobjs.c (woff_open_font): Use WOFF's `totalSfntSize'
1310         only after thorough checks.
1311         Add tracing messages.
1312
1313 2015-10-21  Werner Lemberg  <wl@gnu.org>
1314
1315         [type42] Better check invalid `sfnts' array data (#46255).
1316
1317         * src/type42/t42parse.c (t42_parse_sfnts): Table lengths must be
1318         checked individually against available data size.
1319
1320 2015-10-20  Werner Lemberg  <wl@gnu.org>
1321
1322         [cid] Add a bunch of safety checks.
1323
1324         * src/cid/cidload.c (parse_fd_array): Check `num_dicts' against
1325         stream size.
1326         (cid_read_subrs): Check largest offset against stream size.
1327         (cid_parse_dict): Move safety check to ...
1328         (cid_face_open): ... this function.
1329         Also test length of binary data and values of `SDBytes',
1330         `SubrMapOffset', `SubrCount', `CIDMapOffset', and `CIDCount'.
1331
1332 2015-10-20  Werner Lemberg  <wl@gnu.org>
1333
1334         [cid] Avoid segfault with malformed input (#46250).
1335
1336         * src/cid/cidload.c (cid_read_subrs): Return a proper error code for
1337         unsorted offsets.
1338
1339 2015-10-20  StudioEtrange  <nomorgan@gmail.com>
1340
1341         * CMakeLists.txt: Enable shared library builds on MinGW (#46233).
1342
1343 2015-10-20  Werner Lemberg  <wl@gnu.org>
1344
1345         * src/type1/t1afm.c (T1_Read_Metrics): Fix memory leak (#46229).
1346
1347 2015-10-19  Ben Wagner  <bungeman@gmail.com>
1348
1349         [cid] Better handle invalid glyph stream offsets (#46221).
1350
1351         * src/cid/cidgload.c (cid_load_glyph): Check minimum size of glyph
1352         length.
1353
1354 2015-10-18  Werner Lemberg  <wl@gnu.org>
1355
1356         [psaux] Fix tracing of negative numbers.
1357
1358         Due to incorrect casting negative numbers were shown as very large
1359         (positive) integers on 64bit systems.
1360
1361         * src/psaux/t1decode.c (t1_decoder_parse_charstrings) <op_none>:
1362         Use division instead of shift.
1363
1364 2015-10-18  Werner Lemberg  <wl@gnu.org>
1365
1366         [truetype] Improve TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES (#46223).
1367
1368         * devel/ftoption.h, include/freetype/config/ftoption.h: Surround it
1369         with #ifndef ... #endif, as suggested in the tracker issue.
1370
1371 2015-10-18  Werner Lemberg  <wl@gnu.org>
1372
1373         [truetype] Better protection against malformed `fpgm' (#46223).
1374
1375         * src/truetype/ttobjs.c (tt_size_init_bytecode): Don't execute a
1376         malformed `fpgm' table more than once.
1377
1378 2015-10-17  Werner Lemberg  <wl@gnu.org>
1379
1380         * src/cid/cidgload.c (cid_load_glyph): Fix memory leak.
1381
1382         Reported by Kostya Serebryany <kcc@google.com>.
1383
1384 2015-10-17  Werner Lemberg  <wl@gnu.org>
1385
1386         [bdf] Prevent memory leak (#46217).
1387
1388         * src/bdf/bdflib.c (_bdf_parse_glyphs) <STARTCHAR>: Check
1389         _BDF_GLYPH_BITS.
1390
1391 2015-10-17  Werner Lemberg  <wl@gnu.org>
1392
1393         [bdf] Use stream size to adjust number of glyphs.
1394
1395         * src/bdf/bdflib.c (ACMSG17): New message macro.
1396         (_bdf_parse_t): Add member `size'.
1397         (bdf_load_font): Set `size'.
1398         (_bdf_parse_glyphs): Adjust `cnt' if necessary.
1399
1400 2015-10-17  Werner Lemberg  <wl@gnu.org>
1401
1402         * src/cid/cidload.c (cid_parse_dict): Check `[FG]DBytes' size.
1403
1404 2015-10-17  Werner Lemberg  <wl@gnu.org>
1405
1406         * src/cid/cidgload.c (cid_glyph_load): Check file offsets (#46222).
1407
1408 2015-10-17  Werner Lemberg  <wl@gnu.org>
1409
1410         [psaux] Fix heap buffer overflow (#46221).
1411
1412         * src/psaux/t1decode.c (t1_decoder_parse_charstring) <operator 12>:
1413         Fix limit check.
1414
1415 2015-10-17  Werner Lemberg  <wl@gnu.org>
1416
1417         * src/cid/cidload.c (cid_parse_dict): Handle invalid input (#46220).
1418
1419 2015-10-15  Kostya Serebryany  <kcc@google.com>
1420
1421         [ftfuzzer] Add README.
1422
1423         * src/tools/ftfuzzer/README: New file.
1424
1425 2015-10-15  Ben Wagner  <bungeman@gmail.com>
1426
1427         [bdf] Fix memory leak (#46213).
1428
1429         * src/bdf/bdflib.c (bdf_load_font): Always go to label `Fail' in
1430         case of error.
1431
1432 2015-10-15  Werner Lemberg  <wl@gnu.org>
1433
1434         [truetype] Add TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES (#46208).
1435
1436         * devel/ftoption.h, include/freetype/config/ftoption.h
1437         (TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES): New configuration macro.
1438
1439         * src/truetype/ttinterp.c (MAX_RUNNABLE_OPCODES): Removed.
1440         (TT_RunIns): Updated.
1441
1442 2015-10-15  Werner Lemberg  <wl@gnu.org>
1443
1444         * src/truetype/ttinterp.c (TT_RunIns): Fix bytecode stack tracing.
1445
1446         The used indices were off by 1.
1447
1448 2015-10-15  Ben Wagner  <bungeman@gmail.com>
1449             Werner Lemberg  <wl@gnu.org>
1450
1451         * src/tools/ftfuzzer/ftfuzzer.cc: Handle fixed sizes (#46211).
1452
1453 2015-10-15  Werner Lemberg  <wl@gnu.org>
1454
1455         [base] Compute MD5 checksums only if explicitly requested.
1456
1457         This improves profiling accuracy.
1458
1459         * src/base/ftobjs.c (FT_Render_Glyph_Internal): Implement it.
1460
1461 2015-10-14  Werner Lemberg  <wl@gnu.org>
1462
1463         [base] Use `FT_' namespace for MD5 functions (#42366).
1464
1465         * src/base/ftobjs.c (MD5_*): Define as `FT_MD5_*'.
1466         Undefine HAVE_OPENSSL.
1467
1468 2015-10-13  Werner Lemberg  <wl@gnu.org>
1469
1470         [type1] Correctly handle missing MM axis names (#46202).
1471
1472         * src/type1/t1load.c (T1_Get_MM_Var): Implement it.
1473
1474 2015-10-13  Werner Lemberg  <wl@gnu.org>
1475
1476         [pcf] Quickly exit if font index < 0.
1477
1478         Similar to other font formats, this commit makes the parser no
1479         longer check the whole PCF file but only the header and the TOC if
1480         we just want to get the number of available faces (and a proper
1481         recognition of the font format).
1482
1483         * src/pcf/pcfdrivr.c (PCF_Face_Init): Updated.
1484         Exit quickly if face_index < 0.
1485
1486         * src/pcfread.c (pcf_load_font): Add `face_index' argument.
1487         Exit quickly if face_index < 0.
1488
1489         * src/pcf/pcf.h: Updated.
1490
1491 2015-10-13  Werner Lemberg  <wl@gnu.org>
1492
1493         [ftfuzzer] Handle TTCs and MM/GX variations.
1494
1495         This patch also contains various other improvements.
1496
1497         * src/tools/ftfuzzer/ftfuzzer.cc: Add preprocessor guard to reject
1498         pre-C++11 compilers.
1499         (FT_Global): New class.  Use it to provide a global constructor and
1500         destructor for the `FT_Library' object.
1501         (setIntermediateAxis): New function to select an (arbitrary)
1502         instance.
1503         (LLVMFuzzerTestOneInput): Loop over all faces and named instances.
1504         Also call `FT_Set_Char_Size'.
1505
1506 2015-10-13  Werner Lemberg  <wl@gnu.org>
1507
1508         [truetype] Refine some GX sanity tests.
1509
1510         Use the `gvar' table size instead of the remaining bytes in the
1511         stream.
1512
1513         * src/truetype/ttgxvar.h (GX_BlendRec): New field `gvar_size'.
1514
1515         * src/truetype/ttgxvar.c (ft_var_load_gvar): Set `gvar_size'.
1516         (ft_var_readpackedpoints, ft_var_readpackeddeltas: New argument
1517         `size'.
1518         (tt_face_vary_cvt, TT_Vary_Apply_Glyph_Deltas): Updated.
1519
1520 2015-10-13  Werner Lemberg  <wl@gnu.org>
1521
1522         [truetype] Another GX sanity test.
1523
1524         * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Check
1525         `tupleCount'.
1526         Add tracing message.
1527
1528 2015-10-13  Werner Lemberg  <wl@gnu.org>
1529
1530         [truetype] Fix memory leak for broken GX fonts (#46188).
1531
1532         * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Fix scope of
1533         deallocation.
1534
1535 2015-10-13  Werner Lemberg  <wl@gnu.org>
1536
1537         [truetype] Fix commit from 2015-10-10.
1538
1539         * src/truetype/ttgxvar.c (ft_var_load_gvar): Add missing error
1540         handling body to condition.
1541
1542 2015-10-12  Werner Lemberg  <wl@gnu.org>
1543
1544         [unix] Make MKDIR_P actually work.
1545
1546         * builds/unix/configure.raw: Fix underquoting of `INSTALL' and
1547         `MKDIR_P'.
1548
1549         Problem reported by Dan Liddell <lddll@yahoo.com>.
1550
1551 2015-10-11  Werner Lemberg  <wl@gnu.org>
1552
1553         [sfnt] Improve extraction of number of named instances.
1554
1555         * src/sfnt/sfobjs.c (sfnt_init_face)
1556         [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Check number of instances against
1557         `fvar' table size.
1558
1559 2015-10-10  Alexei Podtelezhnikov  <apodtele@gmail.com>
1560
1561         * src/base/ftoutln.c (FT_Outline_Get_Orientation): Fix overflow
1562         (#46149).
1563
1564 2015-10-10  Werner Lemberg  <wl@gnu.org>
1565
1566         [sfnt] Fix infinite loops with broken cmaps (#46167).
1567
1568         * src/sfnt/ttcmap.c (tt_cmap8_char_next, tt_cmap12_next): Take care
1569         of border conditions (i.e., if the loops exit naturally).
1570
1571 2015-10-10  Werner Lemberg  <wl@gnu.org>
1572
1573         [truetype] More sanity tests for GX handling.
1574
1575         These tests should mainly help avoid unnecessarily large memory
1576         allocations in case of malformed fonts.
1577
1578         * src/truetype/ttgxvar.c (ft_var_readpackedpoints,
1579         ft_var_readpackeddeltas): Check number of points against stream
1580         size.
1581         (ft_var_load_avar): Check `pairCount' against table length.
1582         (ft_var_load_gvar): Check `globalCoordCount' and `glyphCount'
1583         against table length.
1584         (tt_face_vary_cvt): Check `tupleCount' and `offsetToData'.
1585         Fix trace.
1586         (TT_Vary_Apply_Glyph_Deltas): Fix trace.
1587         Free `sharedpoints' to avoid memory leak.
1588
1589 2015-10-10  Werner Lemberg  <wl@gnu.org>
1590
1591         [truetype] Better protection against malformed GX data (#46166).
1592
1593         * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Correctly
1594         handle empty `localpoints' array.
1595
1596 2015-10-10  Werner Lemberg  <wl@gnu.org>
1597
1598         * src/pcf/pcfread.c (pcf_read_TOC): Check stream size (#46162).
1599
1600 2015-10-09  Werner Lemberg  <wl@gnu.org>
1601
1602         * src/gzip/ftgzip.c (FT_Stream_OpenGzip): Use real stream size.
1603
1604 2015-10-08  Werner Lemberg  <wl@gnu.org>
1605
1606         [pcf] Protect against invalid number of TOC entries (#46159).
1607
1608         * src/pcf/pcfread.c (pcf_read_TOC): Check number of TOC entries
1609         against size of data stream.
1610
1611 2015-10-08  Werner Lemberg  <wl@gnu.org>
1612
1613         [type42] Protect against invalid number of glyphs (#46159).
1614
1615         * src/type42/t42parse.c (t42_parse_charstrings): Check number of
1616         `CharStrings' dictionary entries against size of data stream.
1617
1618 2015-10-08  Werner Lemberg  <wl@gnu.org>
1619
1620         [sfnt] Fix some signed overflows (#46149).
1621
1622         * src/sfnt/ttsbit.c (tt_face_load_strike_metrics)
1623         <TT_SBIT_TABLE_TYPE_SBIX>: Use `FT_MulDiv'.
1624
1625 2015-10-08  Werner Lemberg  <wl@gnu.org>
1626
1627         [type1] Protect against invalid number of subroutines (#46150).
1628
1629         * src/type1/t1load.c (parse_subrs): Check number of
1630         `Subrs' dictionary entries against size of data stream.
1631
1632 2015-10-07  Kostya Serebryany  <kcc@google.com>
1633
1634         [ftfuzzer] Add support for LLVM's LibFuzzer.
1635
1636         * src/tools/ftfuzzer/ftfuzzer.cc, src/tools/runinput.cc: New files.
1637
1638 2015-10-06  Alexei Podtelezhnikov  <apodtele@gmail.com>
1639
1640         [smooth] Faster alternative line renderer.
1641
1642         This implementation renders the entire line segment at once without
1643         subdividing it into scanlines.  The main speed improvement comes from
1644         reducing the number of divisions to just two per line segment, which
1645         is a bare minimum to calculate cell coverage in a smooth rasterizer.
1646         Notably, the progression from cell to cell does not itself require any
1647         divisions at all.  The speed improvement is more noticeable at larger
1648         sizes.
1649
1650         * src/smooth/ftgrays.c (gray_render_line): New implementation.
1651
1652 2015-10-06  Werner Lemberg  <wl@gnu.org>
1653
1654         [cff] Return correct PS names from pure CFF (#46130).
1655
1656         * src/cff/cffdrivr.c (cff_get_ps_name): Use SFNT service only for
1657         SFNT.
1658
1659 2015-10-04  Werner Lemberg  <wl@gnu.org>
1660
1661         [base] Replace left shifts with multiplication (#46118).
1662
1663         * src/base/ftglyph.c (ft_bitmap_glyph_bbox, FT_Get_Glyph): Do it.
1664
1665 2015-10-04  Werner Lemberg  <wl@gnu.org>
1666
1667         * Version 2.6.1 released.
1668         =========================
1669
1670
1671         Tag sources with `VER-2-6-1'.
1672
1673         * docs/VERSION.DLL: Update documentation and bump version number to
1674         2.6.1.
1675
1676         * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
1677         builds/windows/vc2005/index.html,
1678         builds/windows/vc2008/freetype.vcproj,
1679         builds/windows/vc2008/index.html,
1680         builds/windows/vc2010/freetype.vcxproj,
1681         builds/windows/vc2010/index.html,
1682         builds/windows/visualc/freetype.dsp,
1683         builds/windows/visualc/freetype.vcproj,
1684         builds/windows/visualc/index.html,
1685         builds/windows/visualce/freetype.dsp,
1686         builds/windows/visualce/freetype.vcproj,
1687         builds/windows/visualce/index.html,
1688         builds/wince/vc2005-ce/freetype.vcproj,
1689         builds/wince/vc2005-ce/index.html,
1690         builds/wince/vc2008-ce/freetype.vcproj,
1691         builds/wince/vc2008-ce/index.html: s/2.6/2.6.1/, s/26/261/.
1692
1693         * include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.
1694
1695         * builds/unix/configure.raw (version_info): Set to 18:1:12.
1696         * CMakeLists.txt (VERSION_PATCH): Set to 1.
1697
1698         * src/autofit/afmodule.c [AF_DEBUG_AUTOFIT]: Ensure C linking for
1699         dumping functions.
1700
1701 2015-10-04  Werner Lemberg  <wl@gnu.org>
1702
1703         [bzip2, gzip] Avoid access of unitialized memory (#46109).
1704
1705         * src/bzip2/ftbzip2.c (ft_bzip2_file_fill_input), src/gzip/ftgzip.c
1706         (ft_gzip_file_fill_input): In case of an error, adjust the limit to
1707         avoid copying uninitialized memory.
1708
1709 2015-10-03  Werner Lemberg  <wl@gnu.org>
1710
1711         [bzip2, gzip] Avoid access of unitialized memory (#46109).
1712
1713         * src/bzip2/ftbzip2.c (ft_bzip2_file_fill_output), src/gzip/ftgzip.c
1714         (ft_gzip_file_fill_output): In case of an error, adjust the limit to
1715         avoid copying uninitialized memory.
1716
1717 2015-10-01  Alexei Podtelezhnikov  <apodtele@gmail.com>
1718
1719         [smooth] Clean up worker.
1720
1721         * src/smooth/ftgrays.c (gray_TWorker): Remove never used fields.
1722
1723 2015-10-01  Werner Lemberg  <wl@gnu.org>
1724
1725         [sfnt] Make `tt_cmap4_char_map_linear' more robust (#46078).
1726
1727         * src/sfnt/ttcmap.c (tt_cmap4_char_map_linear): Take care of
1728         border conditions (i.e., if the loop exits naturally).
1729
1730 2015-10-01  Werner Lemberg  <wl@gnu.org>
1731
1732         * src/autofit/afranges.c (af_deva_nonbase_uniranges): Fix ranges.
1733         They should be a subset of `af_deva_uniranges'.
1734
1735 2015-10-01  Werner Lemberg  <wl@gnu.org>
1736
1737         [sfnt] Make `tt_cmap4_char_map_linear' faster (#46078).
1738
1739         * src/sfnt/ttcmap.c (tt_cmap4_char_map_linear): Use inner loop to
1740         reject too large glyph indices.
1741
1742 2015-09-30  Alexei Podtelezhnikov  <apodtele@gmail.com>
1743
1744         [smooth] Clean up worker.
1745
1746         * src/smooth/ftgrays.c (gray_TWorker): Remove lightly used `last_ey'.
1747         (gray_start_cell, gray_render_line): Update.
1748
1749 2015-09-30  Werner Lemberg  <wl@gnu.org>
1750
1751         [autofit] Replace `no-base' with `non-base'.
1752
1753         * src/autofit/*: Do it.
1754
1755 2015-09-30  Werner Lemberg  <wl@gnu.org>
1756
1757         [sfnt] Rewrite `tt_cmap4_char_map_linear' (#46078).
1758
1759         * src/sfnt/ttcmap.c (tt_cmap4_char_map_linear): Add code to better
1760         skip invalid segments.
1761         If searching the next character, provide a more efficient logic to
1762         speed up the code.
1763
1764 2015-09-30  Werner Lemberg  <wl@gnu.org>
1765
1766         [truetype] Adjust number of glyphs for malformed `loca' tables.
1767
1768         * src/truetype/ttpload.c (tt_face_load_loca): Implement it.
1769
1770 2015-09-29  Werner Lemberg  <wl@gnu.org>
1771
1772         [pshinter] Avoid harmless overflow (#45984).
1773
1774         * src/pshinter/pshglob.c (psh_blues_set_zones): Fix it.
1775
1776 2015-09-28  Werner Lemberg  <wl@gnu.org>
1777
1778         [autofit] Add support for Lao script.
1779
1780         Thanks to Danh Hong <danhhong@gmail.com> for guidance with blue zone
1781         characters!
1782
1783         * src/autofit/afblue.dat: Add blue zone data for Lao.
1784
1785         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
1786
1787         * src/autofit/afscript.h: Add Lao standard characters.
1788
1789         * src/autofit/afranges.c: Add Lao data.
1790
1791         * src/autofit/afstyles.h: Add Lao data.
1792
1793 2015-09-27  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
1794
1795         [base] Fix a leak by broken sfnt-PS or resource fork (#46028).
1796
1797         open_face_from_buffer() frees passed buffer if valid font
1798         is not found.  But if copying to the buffer is failed,
1799         the allocated buffer should be freed within the caller.
1800
1801         * src/base/ftobjs.c (open_face_PS_from_sfnt_stream): Free
1802         the buffer `sfnt_ps' if an error caused before calling
1803         open_face_from_buffer().
1804         (Mac_Read_sfnt_Resource): Free the buffer `sfnt_data' if
1805         an error caused before calling open_face_from_buffer();
1806
1807 2015-09-27  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
1808
1809         [mac] Fix buffer size calculation for LWFN font.
1810
1811         * src/base/ftmac.c (read_lwfn): Cast post_size to FT_ULong
1812         to prevent confused copy by too large chunk size.
1813
1814 2015-09-26  Alexei Podtelezhnikov  <apodtele@gmail.com>
1815
1816         * src/smooth/ftgrays.c (PIXEL_MASK): Remove unused macro.
1817
1818 2015-09-26  Werner Lemberg  <wl@gnu.org>
1819
1820         [autofit] Minor tracing improvement.
1821
1822         * src/autofit/aflatin.c (af_latin_metrics_scale_dim): Don't emit
1823         blue zones header line if there are no blue zones.
1824
1825 2015-09-26  Werner Lemberg  <wl@gnu.org>
1826
1827         [bzip2, gzip, lzw] Harmonize function signatures with prototype.
1828
1829         Suggested by Hin-Tak Leung.
1830
1831         * src/bzip2/ftbzip2.c (ft_bzip2_stream_io), src/gzip/ftgzip.c
1832         (ft_gzip_stream_io), src/lzw/ftlzw.c (ft_lzw_stream_io): Do it.
1833
1834 2015-09-26  Hin-Tak Leung  <htl10@users.sourceforge.net>
1835
1836         Add new FT_LOAD_COMPUTE_METRICS load flag.
1837
1838         * include/freetype/freetype.h (FT_LOAD_COMPUTE_METRICS): New macro.
1839         * src/truetype/ttgload.c (compute_glyph_metrics): Usage.
1840
1841 2015-09-26  Werner Lemberg  <wl@gnu.org>
1842
1843         * src/base/ftobjs.c (Mac_Read_sfnt_Resource): Add cast.
1844
1845 2015-09-25  Werner Lemberg  <wl@gnu.org>
1846
1847         [type1] Protect against invalid number of glyphs (#46029).
1848
1849         * src/type1/t1load.c (parse_charstrings): Check number of
1850         `CharStrings' dictionary entries against size of data stream.
1851
1852 2015-09-23  Werner Lemberg  <wl@gnu.org>
1853
1854         [sfnt] Better checks for invalid cmaps (2/2) (#46019).
1855
1856         While the current code in `FT_Get_Next_Char' correctly rejects
1857         out-of-bounds glyph indices, it can be extremely slow for malformed
1858         cmaps that use 32bit values.  This commit tries to improve that.
1859
1860         * src/sfnt/ttcmap.c (tt_cmap8_char_next, tt_cmap12_next,
1861         tt_cmap12_char_map_binary, tt_cmap13_next,
1862         tt_cmap13_char_map_binary): Reject glyph indices larger than or
1863         equal to the number of glyphs.
1864
1865 2015-09-23  Werner Lemberg  <wl@gnu.org>
1866
1867         [base, sfnt] Better checks for invalid cmaps (1/2).
1868
1869         * src/base/ftobjs.c (FT_Get_Char_Index): Don't return out-of-bounds
1870         glyph indices.
1871         (FT_Get_First_Char): Updated.
1872
1873         * src/sfnt/ttcmap.c (tt_cmap6_char_next): Don't return character
1874         codes greater than 0xFFFF.
1875
1876         (tt_cmap8_char_index): Avoid integer overflow in computation of
1877         glyph index.
1878         (tt_cmap8_char_next): Avoid integer overflows in computation of
1879         both next character code and glyph index.
1880
1881         (tt_cmap10_char_index): Fix unsigned integer logic.
1882         (tt_cmap10_char_next): Avoid integer overflow in computation of
1883         next character code.
1884
1885         (tt_cmap12_next): Avoid integer overflows in computation of both
1886         next character code and glyph index.
1887         (tt_cmap12_char_map_binary): Ditto.
1888         (tt_cmap12_char_next): Simplify.
1889
1890         (tt_cmap13_char_map_binary): Avoid integer overflow in computation
1891         of next character code.
1892         (tt_cmap13_char_next): Simplify.
1893
1894 2015-09-21  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
1895
1896         [base] Check too long POST and sfnt resource (#45919).
1897
1898         * src/base/ftbase.h (FT_MAC_RFORK_MAX_LEN): Maximum length of the
1899         resource fork for Mac OS.  Resource forks larger than 16 MB can be
1900         written but can't be handled correctly, at least in Carbon routine.
1901         See https://support.microsoft.com/en-us/kb/130437.
1902
1903         * src/base/ftobjs.c (Mac_Read_POST_Resource): No need to use `0x'
1904         prefix for `%p' formatter.
1905
1906         * src/base/ftbase.c (Mac_Read_POST_Resource): Check the fragment and
1907         total size of the concatenated POST resource before buffer
1908         allocation.
1909         (Mac_Read_sfnt_Resource): Check the declared size of sfnt resource
1910         before buffer allocation.
1911
1912         * src/base/ftmac.c (read_lwfn, FT_New_Face_From_SFNT): Check the
1913         total resource size before buffer allocation.
1914
1915 2015-09-19  Werner Lemberg  <wl@gnu.org>
1916
1917         [sfnt] Improve handling of invalid SFNT table entries (#45987).
1918
1919         This patch fixes weaknesses in function `tt_face_load_font_dir'.
1920
1921         - It incorrectly assumed that valid tables are always at the
1922           beginning.  As a consequence, some valid tables after invalid
1923           entries (which are ignored) were never seen.
1924
1925         - Duplicate table entries (this is, having the same tag) were not
1926           rejected.
1927
1928         - The number of valid tables was sometimes too large, leading to
1929           access of invalid tables.
1930
1931         * src/sfnt/ttload.c (check_table_dir): Add argument to return number
1932         of valid tables.
1933         Add another tracing message.
1934         (tt_face_load_font_dir): Only allocate table array for valid
1935         entries as returned by `check_table_dir'.
1936         Reject duplicate tables and adjust number of valid tables
1937         accordingly.
1938
1939 2015-09-19  Werner Lemberg  <wl@gnu.org>
1940
1941         [pcf] Improve `FT_ABS' fix from 2015-09-17 (#45999).
1942
1943         * src/pcf/pcfread.c (pcf_load_font): Do first the cast to FT_Short,
1944         then take the absolute value.
1945         Also apply FT_ABS to `height'.
1946
1947 2015-09-17  Werner Lemberg  <wl@gnu.org>
1948
1949         [type42] Fix memory leak (#45989).
1950
1951         * src/type42/t42parse.c (t42_parse_charstrings): Allow only a single
1952         `CharStrings' array.
1953
1954 2015-09-17  Werner Lemberg  <wl@gnu.org>
1955
1956         [psaux] Fix memory leak (#45986).
1957
1958         * src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_MM_BBOX>:
1959         Free `temp' in case of error.
1960
1961 2015-09-17  Werner Lemberg  <wl@gnu.org>
1962
1963         [psaux] Improve tracing message.
1964
1965         * src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_MM_BBOX>:
1966         Handle plural correctly.
1967
1968 2015-09-17  Werner Lemberg  <wl@gnu.org>
1969
1970         [pcf] Fix integer overflows (#45985).
1971
1972         * src/pcf/pcfread.c (pcf_load_font): Use FT_MulDiv.
1973
1974 2015-09-17  Werner Lemberg  <wl@gnu.org>
1975
1976         [pcf] Use FT_ABS for some property values (#45893).
1977
1978         * src/pcf/pcfread.c (pcf_load_font): Take absolute values for
1979         AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE, RESOLUTION_X, and
1980         RESOLUTION_Y.  In tracing mode, add warnings.
1981
1982 2015-09-16  Werner Lemberg  <wl@gnu.org>
1983
1984         Minor fixes for some clang warnings.
1985
1986         * src/base/ftoutln.c (FT_Outline_EmboldenXY): Cast, possible missing
1987         initialization.
1988
1989         * src/truetype/ttgload.c (TT_Process_Composite_Component): Cast.
1990
1991 2015-09-15  Werner Lemberg  <wl@gnu.org>
1992
1993         [type1, type42] Fix memory leaks (#45966).
1994
1995         * src/type1/t1load.c (parse_blend_axis_types): Handle multiple axis
1996         names.
1997         (parse_blend_design_map): Allow only a single design map.
1998         (parse_encoding): Handle multiple encoding vectors.
1999
2000         * src/type42/t42parse.c (t42_parse_encoding): Handle multiple
2001         encoding vectors.
2002
2003 2015-09-15  Werner Lemberg  <wl@gnu.org>
2004
2005         [truetype] Fix integer type (#45965).
2006
2007         * src/truetype/ttobjs.c (tt_synth_sfnt_checksum): Implement it.
2008
2009 2015-09-15  Werner Lemberg  <wl@gnu.org>
2010
2011         * src/pcf/pcfread.c (pcf_load_font): Fix integer overflow (#45964).
2012
2013 2015-09-15  Werner Lemberg  <wl@gnu.org>
2014
2015         [type1, type42] Check encoding array size (#45961).
2016
2017         * src/type1/t1load.c (parse_encoding), src/type42/t42parse.c
2018         (t42_parse_encoding): Do it.
2019
2020 2015-09-14  Alexei Podtelezhnikov  <apodtele@gmail.com>
2021
2022         * src/base/ftcalc.c (FT_MulFix) [FT_LONG64]: Improve.
2023
2024 2015-09-14  Werner Lemberg  <wl@gnu.org>
2025
2026         [type1] Fix another potential buffer overflow (#45955).
2027
2028         * src/type1/t1parse (T1_Get_Private_Dict): Assure that check for
2029         `eexec' doesn't exceed `limit'.
2030
2031 2015-09-13  Werner Lemberg  <wl@gnu.org>
2032
2033         Replace `mkinstalldirs' with AC_PROG_MKDIR_P.
2034
2035         * builds/unix/mkinstalldirs: Removed, no longer needed.
2036
2037         * builds/unix/configure.raw: Call `AC_PROG_MKDIR_P'.
2038         Update pwd call for `$INSTALL'.
2039
2040         * builds/unix/unix-def.in (MKINSTALLDIRS): Use `@MKDIR_P@'.
2041
2042         * autogen.sh: Updated.
2043
2044 2015-09-13  Werner Lemberg  <wl@gnu.org>
2045
2046         [winfonts] Check alignment shift count for resource data (#45938).
2047
2048         * src/winfonts/winfnt.c (fnt_face_get_dll_font): Implement it.
2049
2050 2015-09-13  Werner Lemberg  <wl@gnu.org>
2051
2052         [type1] Fix potential buffer overflow (#45923).
2053
2054         * src/type1/t1parse.c (T1_Get_Private_Dict): Assure `cur' doesn't
2055         point to end of file buffer.
2056
2057 2015-09-13  Werner Lemberg  <wl@gnu.org>
2058
2059         [gzip] Fix access of small compressed files (#45937).
2060
2061         * src/gzip/ftgzip.c (ft_gzip_stream_close): Avoid memory leak.
2062
2063         (ft_gzip_get_uncompressed_file): Correct byte order while reading
2064         unsigned long value.  Without this change, the whole optimization of
2065         accessing small files in `FT_Stream_OpenGzip' is never executed!  As
2066         a consequence, access to PCF files in general (which are normally
2067         small files) should be much improved now as originally intended.
2068
2069 2015-09-11  Werner Lemberg  <wl@gnu.org>
2070
2071         [psaux] Fix potential buffer overflow (#45922).
2072
2073         * src/psaux/psobjs.c (ps_parser_skip_PS_token): If a token is
2074         enclosed in balanced expressions, ensure that the cursor position
2075         doesn't get larger than the current limit.
2076
2077 2015-09-11  Werner Lemberg  <wl@gnu.org>
2078
2079         [base] Avoid crash while tracing `load_mac_face'.
2080
2081         Reported in Savannah bug #45919.
2082
2083         * src/base/ftobjs.c (load_mac_face): Honour FT_OPEN_MEMORY while
2084         tracing.
2085
2086 2015-09-11  Werner Lemberg  <wl@gnu.org>
2087
2088         [type42] Fix endless loop (#45920).
2089
2090         * src/type42/t42parse.c (t42_parse_encoding): Synchronize with
2091         type1's `parse_encoding'.
2092
2093 2015-09-10  Werner Lemberg  <wl@gnu.org>
2094
2095         [docmaker] Allow `-' in bold and italic markup.
2096
2097         * src/tools/docmaker/sources.py (re_italic, re_bold): Adjust
2098         accordingly.
2099
2100 2015-09-09  Alexei Podtelezhnikov  <apodtele@gmail.com>
2101
2102         * src/base/ftcalc.c (FT_RoundFix): Improve.
2103
2104 2015-09-09  Wojciech Mamrak  <wmamrak@gmail.com>
2105
2106         * src/base/ftcalc.c (FT_CeilFix, FT_FloorFix): Normalize.
2107
2108         This commit makes the functions behave as expected, this is,
2109         rounding towards plus or minus infinity.
2110
2111 2015-09-07  Alexei Podtelezhnikov  <apodtele@gmail.com>
2112
2113         * src/smooth/ftgrays.c (gray_render_line): Simplify clipping.
2114
2115 2015-09-04  Alexei Podtelezhnikov  <apodtele@gmail.com>
2116
2117         [raster,smooth] Microoptimizations.
2118
2119         * src/raster/ftraster.c (Insert_Y_Turn, Finalize_Profile_Table,
2120         Beziier_Up, ): Use do-while loops.
2121
2122         * src/smooth/ftgrays.c (gray_render_scanline, gray_render_line,
2123         gray_convert_glyph): Ditto.
2124
2125 2015-09-04  Werner Lemberg  <wl@gnu.org>
2126
2127         [autofit] Redesign code ranges (2/2).
2128
2129         This commit adds two fallback scripts (`latb', `latp') and
2130         implements support for the no-base character ranges introduced in
2131         the previous commit.
2132
2133         * src/autofit/aftypes.h (AF_ScriptClassRec): Add
2134         `script_uni_nobase_ranges' field.
2135         (AF_DEFINE_SCRIPT_CLASS): Updated.
2136
2137         * src/autofit/afscript.h, src/autofit/afstyles.h: Add `latb' and
2138         `latp' fallback scripts.
2139
2140         * src/autofit/afblue.dat: Add blue zones for Latin subscript and
2141         superscript fallback scripts.
2142
2143         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2144
2145         * src/autofit/afglobal.h (AF_NOBASE): New style flag for no-base
2146         characters.
2147         (AF_STYLE_MASK): Updated.
2148
2149         * src/autofit/afglobal.c (SCRIPT): Updated.
2150         (af_face_globals_compute_style_coverage): Handle new style flag.
2151
2152         * src/autofit/aflatin.c (af_latin_hints_apply): Handle new style
2153         flag.
2154
2155         * src/autofit/afranges.h (SCRIPT): Use it to export no-base ranges.
2156
2157 2015-09-04  Werner Lemberg  <wl@gnu.org>
2158
2159         [autofit] Redesign code ranges (1/2).
2160
2161         This patch introduces auxiliary code ranges that identify no-base
2162         characters; they refer to glyphs of a script that should be hinted
2163         without alignments to blue zones (mostly diacritics).
2164
2165         It also splits off ranges for fallback scripts that handle subscript
2166         and superscript characters not covered by OpenType features.  For
2167         example, this greatly helps improve the hinting of various phonetic
2168         alphabets, which contain a large amount characters that look like
2169         superscript glyphs.
2170
2171         Finally, code ranges are updated to Unicode 8.0, and enclosed
2172         characters are removed in general since they normally look better if
2173         they stay unhinted.
2174
2175         * src/autofit/afranges.c (af_latn_uniranges): Updated to Unicode
2176         8.0.
2177         Split off superscript-like and subscript-like glyphs into...
2178
2179         (af_latb_uniranges, af_latp_uniranges): ... these two new arrays.
2180
2181         (af_xxxx_nobase_uniranges): New arrays that hold no-base characters
2182         of the corresponding character ranges.
2183
2184 2015-09-03  Werner Lemberg  <wl@gnu.org>
2185
2186         [autofit] Pass glyph index to hinting function.
2187
2188         No functionality change yet.
2189
2190         * src/autofit/aftypes.h (AF_WritingSystem_ApplyHintsFunc): Pass
2191         glyph index.
2192
2193         * src/autofit/afcjk.c, src/autofit/afcjk.h (af_cjk_hints_apply),
2194         src/autofit/afdummy.c (af_dummy_hints_apply), src/autofit/afindic.c
2195         (af_indic_hints_apply), src/autofit/aflatin.c
2196         (af_latin_hints_apply), src/autofit/aflatin2.c
2197         (af_latin2_hints_apply), src/autofit/afloader.c (af_loader_load_g):
2198         Updated.
2199
2200 2015-08-30  Werner Lemberg  <wl@gnu.org>
2201
2202         [autofit] Code clean-up.
2203
2204         * src/autofit/afglobal.h (AF_STYLE_MASK): New macro.
2205         (AF_STYLE_UNASSIGNED): Use AF_STYLE_MASK for definition.
2206
2207         * src/autofit/afglobal.c (af_face_globals_compute_style_coverage):
2208         Updated.
2209
2210 2015-08-30  Werner Lemberg  <wl@gnu.org>
2211
2212         [autofit] Make glyph style array use 16bit values.
2213
2214         * include/freetype/ftautoh.h (FT_Prop_GlyphToScriptMap): Use
2215         `FT_UShort' for `map' field.
2216
2217         * src/autofit/afglobal.c (af_face_globals_compute_style_coverage,
2218         af_face_globals_new), src/autofit/hbshim.c, src/autofit/hbshim.h
2219         (af_get_coverage): Use FT_UShort for `glyph_styles' array.
2220
2221         * src/autofit/afglobal.h (AF_STYLE_UNASSIGNED, AF_DIGIT): Extend to
2222         16 bits.
2223         (AF_FaceGlobalsRec): Use `FT_UShort' for `glyph_styles' field.
2224
2225 2015-08-26  Werner Lemberg  <wl@gnu.org>
2226
2227         * builds/unix/configure.raw: Need harfbuzz >= 0.9.21 (#45828).
2228
2229 2015-08-25  Werner Lemberg  <wl@gnu.org>
2230
2231         [base] Improve kerning tracing and documentation.
2232
2233         * src/base/ftobjs.c (FT_Get_Kerning): Emit tracing message if
2234         scaled-down kerning values differ.
2235
2236 2015-08-18  Werner Lemberg  <wl@gnu.org>
2237
2238         [raster] Remove last remnants of `raster5' driver.
2239
2240         * src/raster/ftrend1.h (ft_raster5_renderer_class): Removed.
2241
2242         * src/raster/rastpic.c, src/raster/rastpic.h
2243         (ft_raster5_renderer_class_pic_init,
2244         ft_raster5_renderer_class_pic_free): Removed.
2245
2246 2015-08-17  Alexei Podtelezhnikov  <apodtele@gmail.com>
2247
2248         [base] Improve emboldener (#45596).
2249
2250         * src/base/ftoutln.c (FT_Outline_EmboldenXY): Correct displacement
2251         of zero-lenght segments.
2252
2253 2015-08-16  Alexei Podtelezhnikov  <apodtele@gmail.com>
2254
2255         [base] Reoptimize arithmetic.
2256
2257         * src/base/ftcalc.c (FT_MulDiv, FT_MulFix) [!FT_LONG64]: Remove
2258         special cases that slow down the general use.
2259
2260 2015-08-15  pazer  <ibemad@gmail.com>
2261
2262         Fix C++ compilation (#45762).
2263
2264         * src/base/ftstroke.c (ft_outline_glyph_class): Use
2265         FT_CALLBACK_TABLE.
2266
2267 2015-08-14  Alexei Podtelezhnikov  <apodtele@gmail.com>
2268
2269         [truetype] Clean up.
2270
2271         * src/truetype/ttgload.c (TT_Process_Composite_Component): Use
2272         `FT_Outline_Transform' and `FT_Outline_Translate'.
2273         (translate_array): Dropped.
2274
2275 2015-08-14  Andreas Enge  <andreas.enge@inria.fr>
2276
2277         * builds/unix/detect.mk (CONFIG_SHELL): Don't handle it (#44261).
2278
2279 2015-08-13  Werner Lemberg  <wl@gnu.org>
2280
2281         [truetype] Introduce named instance access to GX fonts.
2282
2283         For functions querying a face, bits 16-30 of the face index can hold
2284         the named instance index if we have a GX font.  The indices start
2285         with value 1; value 0 indicates font access without GX variation
2286         data.
2287
2288         * include/freetype/freetype.h (FT_FaceRec): Update documentation.
2289         * include/freetype/internal/sfnt.h: Ditto.
2290
2291         * src/sfnt/sfobjs.c (sfnt_init_face)
2292         [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Get number of named instances and
2293         do argument checks.
2294         (sfnt_load_face): Updated.
2295
2296         * src/truetype/ttobjs.c (tt_face_init)
2297         [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Use named instance, overwriting
2298         the style name.
2299
2300         * src/base/ftobjs.c (open_face_from_buffer,
2301         open_face_PS_from_sfnt_stream): Updated.
2302         * src/bdf/bdfdrivr.c (BDF_Face_Init): Updated.
2303         * src/cff/cffload.c (cff_font_load): Updated.
2304
2305         * src/cff/cffobjs.c (cff_face_init): Make function exit early for
2306         pure CFF fonts if `font_index < 0'.
2307         Updated.
2308
2309         * src/cid/cidobjs.c (cid_face_init): Updated.
2310         * src/pcf/pcfdrivr.c (PCF_Face_Init): Updated.
2311         * src/pfr/pfrobjs.c (pfr_face_init): Updated.
2312         * src/type1/t1objs.c (T1_Face_Init): Updated.
2313         * src/type42/t42objs.c (T42_Face_Init): Updated.
2314         * src/winfonts/winfnt.c (fnt_face_get_dll_font, FNT_Face_Init):
2315         Updated.
2316
2317         * docs/CHANGES: Updated.
2318
2319 2015-08-12  Alexei Podtelezhnikov  <apodtele@gmail.com>
2320
2321         [type1,cff,cid] Streamline font matrix application.
2322
2323         * src/type1/t1gload.c (T1_Load_Glyph): Directly modify advances only
2324         if font matrix is not trivial.
2325         * src/cff/cffgload.c (cff_slot_load): Ditto.
2326         * sff/cid/cidgload.c (cid_slot_load_glyph): Ditto for advances and the
2327         entire outline.
2328
2329 2015-08-11  Werner Lemberg  <wl@gnu.org>
2330
2331         [builds/unix] Minor.
2332
2333         * builds/unix/configure.raw:
2334         s/lib{priv,staticconf}/libs{priv,staticconf}/ for orthogonality with
2335         similarly named uppercase variables.
2336
2337 2015-08-10  Alexei Podtelezhnikov  <apodtele@gmail.com>
2338
2339         [type1,cid,type42] Minor improvements.
2340
2341         * src/type1/t1load.c (t1_parse_font_matrix): Scale units per EM only
2342         when necessary. Refresh comments.
2343         * src/cid/cidload.c (cid_parse_font_matrix): Ditto.
2344         * src/type42/t42parse.c (t42_parse_font_matrix): Refresh comments.
2345
2346 2015-08-08  Werner Lemberg  <wl@gnu.org>
2347
2348         [type42] Fix glyph access.
2349
2350         This is a severe bug: We've missed one level of indirection, as
2351         described in the Type 42 specification.  As a result, ftview
2352         sometimes showed incorrect glyphs for given glyph names, and even
2353         displayed `error 0x0006' (invalid argument!) in case the number of
2354         glyph indices differed between the Type 42 font and the embedded
2355         TTF.
2356
2357         Apparently, noone ever noticed it; this shows how much Type 42 fonts
2358         are in use...
2359
2360         * src/type42/t42objs.c (T42_GlyphSlot_Load): Map Type 42 glyph index
2361         to embedded TTF's glyph index.
2362
2363 2015-08-08  Werner Lemberg  <wl@gnu.org>
2364
2365         [type42] Minor clean-up.
2366
2367         * src/type42/t42parse.c (t42_parse_font_matrix): Remove unused
2368         variable.
2369
2370 2015-08-06  Alexei Podtelezhnikov  <apodtele@gmail.com>
2371
2372         [type42] Parse FontMatrix according to specifications.
2373
2374         * src/type42/t42parse.c (t42_parse_font_matrix): Type 42 FontMatrix
2375         does not need scaling by 1000. Units_per_EM are taken from the
2376         embedded TrueType.
2377
2378 2015-08-06  Werner Lemberg  <wl@gnu.org>
2379
2380         [autofit] Improve Arabic hinting.
2381
2382         Problem reported by Titus Nemeth <tn@tntypography.eu> (by using
2383         ttfautohint).
2384
2385         * src/autofit/afblue.dat: Add neutral blue zone for the tatweel
2386         character.
2387
2388         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2389
2390 2015-08-05  Alexei Podtelezhnikov  <apodtele@gmail.com>
2391
2392         [truetype] Clean up types.
2393
2394         * src/truetype/ttobjs.c (TT_Size): Move declaration from here.
2395         * include/freetype/internal/tttypes.h (TT_Size): ... to here.
2396         (TT_LoaderRec): Switch to appropriate types for `face' and `size'.
2397         * src/truetype/ttgload.c: Remove corresponding type casts.
2398         * src/truetype/ttsubpix.c: Ditto.
2399
2400 2015-08-05  Werner Lemberg  <wl@gnu.org>
2401
2402         [autofit] Improve recognition of flat vs. rounded segments.
2403
2404         Lower the flatness threshold from upem/8 to upem/14, making the
2405         auto-hinter accept shorter elements.
2406
2407         Synchronize flat/round stem selection algorithm with blue zone code.
2408
2409         * src/autofit/aflatin.c (FLAT_THRESHOLD): New macro.
2410         (af_latin_metrics_init_blues): Use it.
2411         (af_latin_hints_compute_segments): Collect information on maximum
2412         and minimum coordinates of `on' points; use this to add a constraint
2413         for the flat/round decision similar to
2414         `af_latin_metrics_init_blues'.
2415
2416 2015-08-04  Werner Lemberg  <wl@gnu.org>
2417
2418         Another left-shift bug (#45681).
2419
2420         * src/base/ftobjs.c (IsMacBinary): Only accept positive values for
2421         `dlen'.
2422
2423 2015-08-03  Alexei Podtelezhnikov  <apodtele@gmail.com>
2424
2425         [base] Fix `ft_corner_orientation'.
2426
2427         Remove casting from `FT_Long' to `FT_Int' that might change the sign
2428         of the return value and make it faster too.
2429
2430         * src/base/ftcalc.c (ft_corner_orientation): On 32-bit systems, stay
2431         with 32-bit arithmetic when safe. Use plain math on 64-bit systems.
2432         * src/pshinter/pshalgo.c: Remove old unused code.
2433
2434 2015-08-03  Werner Lemberg  <wl@gnu.org>
2435
2436         * src/truetype/ttgload.c (load_truetype_glyph)
2437         [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Fix crash for composite glyphs
2438         having a depth greater than 1.
2439
2440 2015-08-03  Werner Lemberg  <wl@gnu.org>
2441
2442         Fix typo in clang bug from 2015-07-31 (#45678).
2443
2444         * src/base/ftrfork.c (FT_Raccess_Get_HeaderInfo): Fix inequality.
2445
2446 2015-08-02  Werner Lemberg  <wl@gnu.org>
2447
2448         * CMakeLists.txt: Improve shared library support.
2449
2450         Based on a patch from John Cary <cary@txcorp.com>.
2451
2452 2015-08-02  Werner Lemberg  <wl@gnu.org>
2453
2454         * builds/unix/freetype-config.in (enable_shared): Remove.  Unused.
2455
2456 2015-08-02  Werner Lemberg  <wl@gnu.org>
2457
2458         Fix more invalid left-shifts.
2459
2460         * src/pfr/pfrgload.c (pfr_glyph_load_compound): Use multiplication,
2461         not left-shift.
2462
2463         * src/truetype/ttgxvar.c (ft_var_load_avar, ft_var_load_gvar,
2464         tt_face_vary_cvt, TT_Vary_Apply_Glyph_Deltas): Use multiplication,
2465         not left-shift.
2466
2467 2015-07-31  Werner Lemberg  <wl@gnu.org>
2468
2469         Fix some bugs found by clang's `-fsanitize=undefined' (#45661).
2470
2471         * src/base/ftrfork.c (FT_Raccess_Get_HeaderInfo): Only accept
2472         positive values from header.
2473         Check overflow.
2474
2475         * src/base/ftoutln.c (SCALED): Correctly handle left-shift of
2476         negative values.
2477
2478         * src/bdf/bdf.h (_bdf_glyph_modified, _bdf_set_glyph_modified,
2479         _bdf_clear_glyph_modified): Use unsigned long constant.
2480
2481         * src/bdf/bdfdrivr.c (BDF_Size_Select, BDF_Glyph_Load): Don't
2482         left-shift values that can be negative.
2483
2484         * src/pcf/pcfdrivr.c (PCF_Size_Select, PCF_Glyph_Load): Don't
2485         left-shift values that can be negative.
2486
2487         * src/raster/ftraster.c (SCALED): Correctly handle left-shift of
2488         negative values.
2489
2490         * src/sfnt/ttsbit.c (tt_face_load_strike_metrics): Don't left-shift
2491         values that can be negative.
2492
2493         * src/truetype/ttgload.c (TT_Load_Composite_Glyph,
2494         compute_glyph_metrics, load_sbit_image): Don't left-shift values
2495         that can be negative.
2496
2497 2015-07-31  Werner Lemberg  <wl@gnu.org>
2498
2499         Define FT_LONG_MAX.
2500
2501         * include/freetype/config/ftstdlib.h (FT_LONG_MAX): New macro.
2502         * src/cff/cf2arrst.c (cf2_arrstack_setNumElements): Use it.
2503
2504 2015-07-28  Alexei Podtelezhnikov  <apodtele@gmail.com>
2505
2506         * src/base/ftcalc.c (FT_Vector_NormLen): Clarify.
2507
2508 2015-07-27  Alexei Podtelezhnikov  <apodtele@gmail.com>
2509
2510         * src/base/ftcalc.c (FT_Vector_NormLen): Explicate type conversions.
2511
2512 2015-07-26  Matthias Clasen  <matthias.clasen@gmail.com>
2513
2514         [cff] Don't use `hmtx' table for LSB (#45520).
2515
2516         * src/cff/cffgload.c (cff_slot_load): Use `htmx' table for advance
2517         width only.  Bug introduced 2015-04-10.
2518
2519 2015-07-09  Werner Lemberg  <wl@gnu.org>
2520
2521         Better support of user-supplied C++ namespaces.
2522
2523         See
2524
2525           http://lists.nongnu.org/archive/html/freetype-devel/2015-07/msg00008.html
2526
2527         for a rationale.
2528
2529         * src/autofit/afpic.h, src/base/basepic.h, src/cff/cffpic.h,
2530         src/pshinter/pshpic.h, src/psnames/pspic.h, src/raster/rastpic.h,
2531         src/sfnt/sfntpic.h, src/smooth/ftspic.h, src/truetype/ttpic.h
2532         (FT_BEGIN_HEADER, FT_END_HEADER): Move macro calls to not enclose
2533         header files that contain FT_{BEGIN,END}_HEADER macros by
2534         themselves.
2535
2536         * src/autofit/aftypes.h [FT_DEBUG_AUTOFIT]: Include
2537         FT_CONFIG_STANDARD_LIBRARY_H earlier.
2538
2539         * src/truetype/ttpic.h: Include FT_INTERNL_PIC_H.
2540
2541 2015-07-07  Werner Lemberg  <wl@gnu.org>
2542
2543         [sfnt] Make `tt_face_get_name' member of the SFNT interface.
2544
2545         * include/freetype/internal/sfnt.h (TT_Get_Name_Func): New
2546         prototype.
2547         (SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): New member `get_name'.
2548
2549         * src/sfnt/sfdriver.c (sfnt_interface): Updated.
2550
2551         * src/sfnt/sfobjs.c (tt_face_get_name): Tag it with `LOCAL_DEF'.
2552         * src/sfnt/sfobjs.h: Add prototype for it.
2553
2554 2015-06-30  Werner Lemberg  <wl@gnu.org>
2555
2556         Fix some clang compiler warnings.
2557
2558         * src/base/ftoutln.c (FT_Outline_EmboldenXY), src/cff/cf2intrp.c
2559         (cf2_interpT2CharString), src/truetype/ttgload.c
2560         (load_truetype_glyph), src/truetype/ttgxvar.c (tt_handle_deltas),
2561         src/truetype/ttinterp.c (Ins_INSTCTRL): Fix signedness issues.
2562
2563 2015-06-29  Alexei Podtelezhnikov <apodtele@gmail.com>
2564
2565         [truetype] Speed up bytecode interpreter.
2566
2567         * src/truetype/ttinterp.c (Normalize): Use `FT_Vector_NormLen'.
2568
2569 2015-06-29  Alexei Podtelezhnikov <apodtele@gmail.com>
2570
2571         [base] Speed up emboldening.
2572
2573         * src/base/ftoutln.c (FT_Outline_EmboldenXY): Use
2574         `FT_Vector_NormLen'.
2575
2576 2015-06-29  Alexei Podtelezhnikov <apodtele@gmail.com>
2577
2578         [base] Implement fast vector normalization.
2579
2580         The function uses Newton's iterations instead of dividing vector
2581         components by its length, which needs a square root. This is,
2582         literally, a bit less accurate but a lot faster.
2583
2584         * src/base/ftcalc.c (FT_Vector_NormLen): New function.
2585
2586 2015-06-28  Werner Lemberg  <wl@gnu.org>
2587
2588         * CMakeLists.txt: Always create `ftconfig.h'.
2589
2590         For non-UNIX builds, the file stays unmodified.  However, it's
2591         better to have the main configuration files at the same place
2592         regardless of the OS.
2593
2594 2015-06-28  Werner Lemberg  <wl@gnu.org>
2595
2596         * CMakeLists.txt: Improve MSVC support (#43737).
2597
2598 2015-06-28  Werner Lemberg  <wl@gnu.org>
2599
2600         [cmake] Check for libraries and create `ftoption.h'.
2601
2602         * builds/FindHarfBuzz.cmake: New file, taken from
2603
2604           https://trac.webkit.org/browser/trunk/Source/cmake/FindHarfBuzz.cmake
2605
2606         * CMakeLists.Txt: Add path to local cmake modules.
2607         Find dependencies for zlib, bzip2, libpng, and harfbuzz.
2608         Create `ftoption.h' file.
2609         Set up include and linker stuff for libraries.
2610
2611 2015-06-28  Werner Lemberg  <wl@gnu.org>
2612
2613         * CMakeLists.txt: Fix creation of `ftconfig.h'.
2614         Check for UNIX header files using `check_include_file'.
2615         Set up correct header include directories.
2616
2617 2015-06-28  Werner Lemberg  <wl@gnu.org>
2618
2619         * CMakeLists.txt: Disallow in-source builds.
2620
2621 2015-06-27  Werner Lemberg  <wl@gnu.org>
2622
2623         * src/tools/docmaker/utils.py (check_output): Add missing `\n'.
2624
2625 2015-06-26  Werner Lemberg  <wl@gnu.org>
2626
2627         * CMakeLists.txt: Select platform-dependent `ftdebug.c'.
2628
2629 2015-06-25  Werner Lemberg  <wl@gnu.org>
2630
2631         * CMakeLists.txt: Use cmake functions for generating `ftconfig.h'.
2632         Additionally, do this for UNIX only.
2633
2634 2015-06-25  Werner Lemberg  <wl@gnu.org>
2635
2636         * CMakeLists.txt (BASE_SRCS): Use `ftbase.c' and `psnames.c'.
2637
2638 2015-06-25  Werner Lemberg  <wl@gnu.org>
2639
2640         Another adjustment to header locations.
2641
2642         This change is a result of a discussion thread on freetype-devel
2643
2644           http://lists.nongnu.org/archive/html/freetype-devel/2015-06/msg00041.html
2645
2646         Re-introduce the `freetype2' subdirectory for all FreeType header
2647         files after installation, and rename the `freetype2' subdirectory in
2648         the git repository to `freetype'.
2649
2650         * include/freetype2: Renamed to...
2651         * include/freetype: This.
2652
2653         * CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS,
2654         PRIVATE_HEADERS): Updated.
2655         Update creation of `ftconfig.h'.
2656         Install generated `ftconfig.h'.
2657
2658         * Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated.
2659
2660         * builds/amiga/include/config/ftconfig.h, builds/freetype.mk
2661         (PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work),
2662         builds/unix/freetype2.in: Updated.
2663
2664         * builds/unix/freetype-config.in: Updated.
2665         * builds/unix/configure.raw: Don't check for `rmdir'.
2666         * builds/unix/unix-def.in (DELDIR): Use `rm -rf', which is portable
2667         according to the autoconf info manual.
2668         * builds/unix/install.mk (install, uninstall,
2669         distclean_project_unix): Update and simplify.
2670
2671         * builds/wince/*, builds/windows/*: Updated.
2672
2673         * devel/ft2build.h, include/ft2build.h: Updated.
2674
2675         * include/freetype2/config/ftheader.h,
2676         include/freetype2/internal/ftserv.h,
2677         include/freetype2/internal/internal.h: Update all header file
2678         macros.
2679
2680         * src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated.
2681
2682         * docs/*: Updated.
2683
2684 2015-06-24  Alexei Podtelezhnikov <apodtele@gmail.com>
2685
2686         * src/bdf/bdflib.c (_bdf_parse_start): Disallow 0 bpp.
2687
2688 2015-06-24  Alexei Podtelezhnikov <apodtele@gmail.com>
2689
2690         * src/bdf/bdflib.c (_bdf_parse_start): Simplify bpp parsing.
2691
2692 2015-06-23  Werner Lemberg  <wl@gnu.org>
2693
2694         s/TYPEOF/FT_TYPEOF/ (#45376).
2695
2696         * builds/unix/ftconfig.in, builds/vms/ftconfig.in,
2697         include/freetype2/config/ftconfig.h,
2698         include/freetype2/internal/ftobjs.h, src/autofit/afwarp.h: Do it.
2699
2700 2015-06-22  Werner Lemberg  <wl@gnu.org>
2701
2702         Fix Savannah bug #45097.
2703
2704         We no longer `pollute' the namespace of possible header file names;
2705         instead we move `ft2build.h' up by one level so that it gets
2706         installed in the default include directory (e.g.,
2707         /usr/local/include).  After this commit, only `ft2build.h' stays in
2708         the compiler's include path.
2709
2710         No visible changes for the user who follows the standard FreeType
2711         header inclusion rules.
2712
2713         * include/*: Move to ...
2714         * include/freetype2/*: This directory, except `ft2build.h'.
2715
2716         * CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS,
2717         PRIVATE_HEADERS), Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated.
2718
2719         * builds/amiga/include/config/ftconfig.h, builds/freetype.mk
2720         (PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work),
2721         builds/unix/install.mk (install, uninstall),
2722         builds/unix/freetype2.in: Updated.
2723
2724         * builds/unix/freetype-config.in: Updated.
2725         Emit -I directory only if it is not `/usr/include'.
2726
2727         * builds/wince/*, builds/windows/*: Updated.
2728
2729         * devel/ft2build.h, include/ft2build.h: Updated.
2730
2731         * include/freetype2/config/ftheader.h,
2732         include/freetype2/internal/ftserv.h,
2733         include/freetype2/internal/internal.h: Update all header file
2734         macros.
2735
2736         * src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated.
2737
2738 2015-06-21  Werner Lemberg  <wl@gnu.org>
2739
2740         Make Jam support work again.
2741
2742         This is just very basic stuff and just a little bit tested on
2743         GNU/Linux only.  I won't delve into this since I'm not a Jam user.
2744
2745         * Jamfile: Call `HDRMACRO' for `ftserv.h' also.
2746         (DEFINES): Replace with...
2747         (CCFLAGS): ... this.
2748
2749         * src/Jamfile: Don't call `HDRMACRO' for `internal.h'; this is
2750         already handled in the top-level Jamfile.
2751
2752         * src/autofit/Jamfile (DEFINES): Replace with...
2753         (CCFLAGS): ... this.
2754         (_sources): Add missing files.
2755
2756         * src/cache/Jamfile: Don't call `HDRMACRO' for `ftcache.h'; it no
2757         longer contains macro header definitions.
2758
2759         * src/base/Jamfile, src/cff/Jamfile, src/sfnt/Jamfile,
2760         src/truetype/Jamfile (_sources): Add missing files.
2761
2762 2015-06-16  Werner Lemberg  <wl@gnu.org>
2763
2764         Fix Savannah bug #45326.
2765
2766         * src/sfnt/sfntpic.h (SFNT_SERVICES_GET): Remove duplicate
2767         definitions.
2768
2769 2015-06-07  Werner Lemberg  <wl@gnu.org>
2770
2771         * Version 2.6 released.
2772         =======================
2773
2774
2775         Tag sources with `VER-2-6'.
2776
2777         * docs/VERSION.DLL: Update documentation and bump version number to
2778         2.6.
2779
2780         * README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
2781         builds/windows/vc2005/index.html,
2782         builds/windows/vc2008/freetype.vcproj,
2783         builds/windows/vc2008/index.html,
2784         builds/windows/vc2010/freetype.vcxproj,
2785         builds/windows/vc2010/index.html,
2786         builds/windows/visualc/freetype.dsp,
2787         builds/windows/visualc/freetype.vcproj,
2788         builds/windows/visualc/index.html,
2789         builds/windows/visualce/freetype.dsp,
2790         builds/windows/visualce/freetype.vcproj,
2791         builds/windows/visualce/index.html,
2792         builds/wince/vc2005-ce/freetype.vcproj,
2793         builds/wince/vc2005-ce/index.html,
2794         builds/wince/vc2008-ce/freetype.vcproj,
2795         builds/wince/vc2008-ce/index.html: s/2.5.5/2.6/, s/255/26/.
2796
2797         * include/freetype/freetype.h (FREETYPE_MINOR): Set to 6.
2798         (FREETYPE_PATCH): Set to 0.
2799
2800         * builds/unix/configure.raw (version_info): Set to 18:0:12.
2801         * CMakeLists.txt (VERSION_MINOR): Set to 6.
2802         (VERSION_PATCH): Set to 0.
2803
2804         * src/autofit/afmodule.c [!FT_MAKE_OPTION_SINGLE_OBJECT]: Add
2805         declarations for dumping functions.
2806
2807         * src/truetype/ttinterp.c (TT_New_Context): Pacify compiler.
2808
2809         * builds/toplevel.mk: Use `freetype.mk's code to compute the version
2810         string.
2811         Don't include a zero patch level in version string.
2812         * builds/freetype.mk: Remove code for computing the version string.
2813
2814 2015-06-06  Ashish Azad  <ashish.azad@samsung.com>
2815
2816         Fix Savannah bug #45260.
2817
2818         * src/pfr/pfrdrivr.c (pfr_get_kerning): Fix typo.
2819
2820 2015-06-03  Werner Lemberg  <wl@gnu.org>
2821
2822         [truetype] Fix memory leak.
2823
2824         Problem reported by Grissiom <chaos.proton@gmail.com>; in
2825
2826           http://lists.nongnu.org/archive/html/freetype/2015-05/msg00013.html
2827
2828         there is an example code to trigger the bug.
2829
2830         * src/truetype/ttobjs.c (tt_size_init_bytecode): Free old `size'
2831         data before allocating again.  Bug most probably introduced four
2832         years ago in version 2.4.3.
2833
2834 2015-06-02  Werner Lemberg  <wl@gnu.org>
2835
2836         [raster] Add more tracing.
2837
2838         * src/raster/ftraster.c (FT_TRACE7) [_STANDALONE_]: Define.
2839         (Vertical_Sweep_Span, Vertical_Sweep_Drop, Horizontal_Sweep_Span,
2840         Horizontal_Sweep_Drop, Render_Glyph): Add tracing calls.
2841
2842 2015-06-01  Werner Lemberg  <wl@gnu.org>
2843
2844         [truetype] While tracing opcodes, show code position and stack.
2845
2846         * src/truetype/ttinterp.c: Change all existing TRACE7 calls to
2847         TRACE6.
2848         (opcode_name): Add string lengths.
2849         (TT_RunIns): Implement display of code position and stack.
2850
2851 2015-05-31  Werner Lemberg  <wl@gnu.org>
2852
2853         [truetype] In GX, make private point numbers work correctly.
2854
2855         This is completely missing in Apple's documentation: If a `gvar'
2856         tuple uses private point numbers (this is, deltas are specified for
2857         some points only), the uncovered points must be interpolated for
2858         this tuple similar to the IUP bytecode instruction.  Examples that
2859         need this functionality are glyphs `Oslash' and `Q' in Skia.ttf.
2860
2861         * src/truetype/ttgxvar.c (tt_delta_shift, tt_delta_interpolate,
2862         tt_handle_deltas): New functions.
2863         (TT_Vary_Get_Glyph_Deltas): Renamed to...
2864         (TT_Vary_Apply_Glyph_Deltas): ... this; it directly processes the
2865         points and does no longer return an array of deltas.
2866         Add tracing information.
2867         Call `tt_handle_deltas' to interpolate missing deltas.
2868         Also fix a minor memory leak in case of error.
2869
2870         * src/truetype/ttgxvar.h: Updated.
2871
2872         * src/truetype/ttgload.c (TT_Process_Simple_Glyph,
2873         load_truetype_glyph): Updated.
2874
2875 2015-05-31  Werner Lemberg  <wl@gnu.org>
2876
2877         [truetype] In GX, make intermediate tuplets work at extrema.
2878
2879         * src/truetype/ttgxvar.c (ft_var_apply_tuple): Fix range condition.
2880
2881 2015-05-31  Werner Lemberg  <wl@gnu.org>
2882
2883         [truetype] Add tracing information to GX code.
2884
2885         * src/truetype/ttgxvar.c (ft_var_load_avar, ft_var_load_gvar,
2886         ft_var_apply_tuple, TT_Get_MM_Var, TT_Set_MM_Blend,
2887         TT_Set_Var_Design, tt_face_vary_cvt): Do it.
2888
2889 2015-05-28  Werner Lemberg  <wl@gnu.org>
2890
2891         * src/tools/apinames.c (names_dump): Fix invalid reference.
2892
2893         Problem reported by Guzman Mosqueda, Jose R
2894         <jose.r.guzman.mosqueda@intel.com>.
2895
2896 2015-05-24  Werner Lemberg  <wl@gnu.org>
2897
2898         [truetype] Fix commit from 2015-05-22.
2899
2900         * src/truetype/ttgload.c, src/truetype/ttinterp.c: Guard new code
2901         with `TT_CONFIG_OPTION_SUBPIXEL_HINTING'.
2902
2903         Problem reported by Nikolaus Waxweiler <madigens@gmail.com>.
2904
2905 2015-05-23  Werner Lemberg  <wl@gnu.org>
2906
2907         [truetype] Fix return values of GETINFO bytecode instruction.
2908
2909         * src/truetype/ttinterp.h (TT_ExecContextRec): New fields
2910         `vertical_lcd' and `gray_cleartype'.
2911
2912         * src/truetype/ttgload.c (tt_loader_init): Initialize new fields.
2913         Change `symmetrical smoothing' to TRUE, since FreeType produces
2914         exactly this.
2915
2916         * src/truetype/ttinterp.c (Ins_GETINFO): Fix selector/return bit
2917         values for symmetrical smoothing, namely 11/18.
2918         Handle bits for vertical LCD subpixels (8/15) and Gray ClearType
2919         (12/19).
2920
2921 2015-05-23  Werner Lemberg  <wl@gnu.org>
2922
2923         [truetype] Minor.
2924
2925         * src/truetype/ttinterp.h (TT_ExecContext):
2926          s/subpixel/subpixel_hinting.
2927
2928         * src/truetype/ttgload.c, src/truetype/ttgload.h: Updated.
2929
2930 2015-05-22  Werner Lemberg  <wl@gnu.org>
2931
2932         [truetype] Support selector index 3 of the INSTCTRL instruction.
2933
2934         This flag activates `native ClearType hinting', disabling backwards
2935         compatibility mode as described in Greg Hitchcocks whitepaper.  In
2936         other words, it enables unrestricted functionality of all TrueType
2937         instructions in ClearType.
2938
2939         * src/truetype/ttgload.c (tt_get_metrics): Call `sph_set_tweaks'
2940         unconditionally.
2941         (tt_loader_init): Unset `ignore_x_mode' flag if bit 2 of
2942         `GS.instruct_control' is active.
2943
2944         * src/truetype/ttinterp.c (Ins_INSTCTRL): Handle selector index 3.
2945         (Ins_GETINFO): Updated.
2946
2947         * docs/CHANGES: Document it.
2948
2949 2015-05-20  Werner Lemberg  <wl@gnu.org>
2950
2951         [truetype] Minor.
2952
2953         * src/truetype/ttinterp.h (SetSuperRound): Fix type of `GridPeriod'
2954         argument.
2955
2956 2015-05-17  Werner Lemberg  <wl@gnu.org>
2957
2958         [truetype] Fix loading of composite glyphs.
2959
2960         * src/truetype/ttgload.c (TT_Load_Composite_Glyph): If the
2961         ARGS_ARE_XY_VALUES flag is not set, handle argument values as
2962         unsigned.  I trust `ttx' (which has exactly such code) that it does
2963         the right thing here...
2964
2965         The reason that noone has ever noticed this bug is probably the fact
2966         that point-aligned subglyphs are rare, as are subglyphs with a
2967         number of points in the range [128;255], which is quite large (or
2968         even in the range [32768;65535], which is extremely unlikely).
2969
2970 2015-05-12  Chris Liddell  <chris.liddell@artifex.com>
2971
2972         [cff] Make the `*curveto' operators more tolerant.
2973
2974         * src/cff/cf2intrp.c (cf2_interpT2CharString): The opcodes
2975         `vvcurveto', `hhcurveto', `vhcurveto', and `hvcurveto' all iterate,
2976         pulling values off the stack until the stack is exhausted.
2977         Implicitly the stack must be a multiple (or for subtly different
2978         behaviour) a multiple plus a specific number of extra values deep.
2979         If that's not the case, enforce it (as the old code did).
2980
2981 2015-05-12  Chris Liddell  <chris.liddell@artifex.com>
2982
2983         [cff] fix incremental interface with new cff code.
2984
2985         * src/cff/cf2ft.c (cf2_getSeacComponent): When using the incremental
2986         interface to retrieve glyph data for a SEAC, it be left to the
2987         incremental interface callback to apply the encoding to raw
2988         character index (as it was in the previous code).
2989
2990 2015-04-29  Alexei Podtelezhnikov <apodtele@gmail.com>
2991
2992         [autofit] Speed up IUP.
2993
2994         * src/autofit/afhints.c (af_iup_interp): Separate trivial snapping to
2995         the same position from true interpolation, use `scale' to reduce
2996         divisions.
2997
2998 2015-04-28  Werner Lemberg  <wl@gnu.org>
2999
3000         [cff] Use `name' table for PS name if we have a SFNT-CFF.
3001
3002         This follows the OpenType 1.7 specification.  See
3003
3004           http://tug.org/pipermail/tex-live/2015-April/036634.html
3005
3006         for a discussion.
3007
3008         * src/cff/cffdrivr.c (cff_get_ps_name): Use the `sfnt' service if we
3009         have an SFNT.
3010
3011 2015-04-27  Alexei Podtelezhnikov <apodtele@gmail.com>
3012
3013         [truetype] Speed up IUP.
3014
3015         * src/truetype/ttinterp.c (_iup_worker_interpolate): Separate trivial
3016         snapping to the same position from true interpolation.
3017
3018 2015-04-21  Werner Lemberg  <wl@gnu.org>
3019
3020         [autofit] By default, enable warping code but switch off warping.
3021
3022         Suggested by Behdad.
3023
3024         * include/config/ftoption.h: Define AF_CONFIG_OPTION_USE_WARPER.
3025
3026         * src/autofit/afmodule.c (af_autofitter_init): Initialize `warping'
3027         with `false'.
3028
3029 2015-04-21  Werner Lemberg  <wl@gnu.org>
3030
3031         * docs/CHANGES: Updated.
3032
3033 2015-04-21  Werner Lemberg  <wl@gnu.org>
3034
3035         [autofit] Introduce `warping' property.
3036
3037         This code replaces the debugging hook from the previous commit with
3038         a better, more generic solution.
3039
3040         * include/ftautoh.h: Document it.
3041
3042         * src/autofit/afmodule.h (AF_ModuleRec)
3043         [AF_CONFIG_OPTION_USE_WARPER]: Add `warping' field.
3044
3045         * src/autofit/afmodule.c (_af_debug_disable_warper): Remove.
3046         (af_property_set, af_property_get, af_autofitter_init)
3047         [AF_CONFIG_OPTION_USE_WARPER]: Handle `warping' option.
3048
3049         * src/autofit/afhints.h (AF_HINTS_DO_WARP): Remove use of the no
3050         longer existing `_af_debug_disable_warper'.
3051
3052         * src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c
3053         (af_latin_hints_init), src/autofit/aflatin2.c (af_latin2_hints_init)
3054         [AF_CONFIG_OPTION_USE_WARPER]: Add `AF_SCALER_FLAG_NO_WARPER' to the
3055         scaler flags if warping is off.
3056
3057         * src/autofit/aftypes.h: Updated.
3058
3059 2015-04-16  Werner Lemberg  <wl@gnu.org>
3060
3061         [autofit] Add debugging hook to disable warper.
3062
3063         * src/autofit/afmodule.c (_af_debug_disable_warper)
3064         [FT_DEBUG_AUTOFIT]: New global variable.
3065
3066         * src/autofit/aftypes.h: Updated.
3067         (AF_SCALER_FLAG_NO_WARPER): New macro (not actively used yet).
3068
3069         * src/autofit/afhints.h (AF_HINTS_DO_WARP): New macro.
3070
3071         * src/autofi/aflatin.c (af_latin_hints_apply)
3072         [AF_CONFIG_OPTION_USE_WARPER]: Use `AF_HINTS_DO_WARP' to control use
3073         of warper.
3074
3075         * src/autofit/afcjk.c (af_cjk_hints_init, af_cjk_hints_apply)
3076         [AF_CONFIG_OPTION_USE_WARPER]: Synchronize with `aflatin.c'.
3077
3078         * src/autofit/aflatin2.c (af_latin2_hints_apply)
3079         [AF_CONFIG_OPTION_USE_WARPER]: Synchronize with `aflatin.c'.
3080
3081 2015-04-10  Werner Lemberg  <wl@gnu.org>
3082
3083         [cff] Update advance width handling to OpenType 1.7.
3084
3085         Problem reported by Behdad.
3086
3087         * src/cff/cffdrivr.c (cff_get_advances): Handle SFNT case
3088         separately.
3089
3090         * src/cff/cffgload.c (cff_slot_load): Use advance width and side
3091         bearing values from `hmtx' table if present.
3092
3093 2015-04-03  Alexei Podtelezhnikov <apodtele@gmail.com>
3094
3095         * src/autofit/afhints.c (af_glyph_hints_reload): Use do-while loop.
3096
3097 2015-04-02  Alexei Podtelezhnikov <apodtele@gmail.com>
3098
3099         * src/autofit/aflatin.c (af_latin_hint_edges): Reduce logic.
3100
3101 2015-04-01  Alexei Podtelezhnikov <apodtele@gmail.com>
3102
3103         [autofit] Finish the thought.
3104
3105         * src/autofit/afhints.c (af_direction_compute): make sure the long arm
3106         is never negative so that its `FT_ABS' is not necessary.
3107
3108 2015-04-01  Werner Lemberg  <wl@gnu.org>
3109
3110         [autofit] Call dumper functions for tracing.
3111
3112         * src/autofit/afcjk.c (af_cjk_hints_apply): Remove dead code.
3113         * src/autofit/afhints.c (af_glyph_hints_dump_points): Minor
3114         improvement.
3115         * src/autofit/afmodule.c (af_autofitter_load_glyph): Implement it.
3116
3117 2015-04-01  Werner Lemberg  <wl@gnu.org>
3118
3119         [autofit] Make debugging stuff work again.
3120
3121         The interface to ftgrid was broken in the series of commits starting
3122         with
3123
3124           [autofit] Allocate AF_Loader on the stack instead of AF_Module.
3125
3126         from 2015-01-14.
3127
3128         * src/autofit/afmodule.c (_af_debug_hints_rec) [FT_DEBUG_AUTOFIT]:
3129         Use a global AF_GlyphHintsRec object for debugging.
3130         (af_autofitter_done, af_autofitter_load_glyph): Updated.
3131
3132         * src/autofit/afloader.c (af_loader_init, af_loader_done): Updated.
3133
3134 2015-04-01  Werner Lemberg  <wl@gnu.org>
3135
3136         * src/autofit/afhints.c (af_glyph_hints_done): Fix minor thinko.
3137
3138 2015-03-29  Werner Lemberg  <wl@gnu.org>
3139
3140         [cff] Fix Savannah bug #44629.
3141
3142         * src/cff/cf2font.h (CF2_MAX_SUBR), src/cff/cffgload.h
3143         (CFF_MAX_SUBRS_CALLS): Set to 16.
3144
3145 2015-03-29  Werner Lemberg  <wl@gnu.org>
3146
3147         [type1, truetype] Make the MM API more flexible w.r.t. `num_coords'.
3148
3149         This commit allows `num_coords' to be larger or smaller than the
3150         number of available axes while selecting a design instance, either
3151         ignoring excess data or using defaults if data is missing.
3152
3153         * src/truetype/ttgxvar.c (TT_Set_MM_Blend, TT_Set_Var_Design):
3154         Implement it.
3155
3156         * src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design,
3157         T1_Set_Var_Design): Ditto.
3158
3159 2015-03-29  Werner Lemberg  <wl@gnu.org>
3160
3161         [type1] Minor.
3162
3163         * src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design): Use
3164         FT_THROW.
3165         (T1_Set_Var_Design): Use T1_MAX_MM_AXIS and FT_THROW.
3166
3167 2015-03-27  Werner Lemberg  <wl@gnu.org>
3168
3169         [cff] Trace charstring nesting levels.
3170
3171         * src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdCALLGSUBR,
3172         cf2_cmdCALLSUBR, cf2_cmdRETURN>: Implement it.
3173
3174         * src/cff/cffgload.c (cff_decoder_parse_charstrings)
3175         <cff_op_callsubr, cff_op_callgsubr, cff_op_return>: Ditto.
3176
3177 2015-03-21  Alexei Podtelezhnikov <apodtele@gmail.com>
3178
3179         [base] Optimize `FT_Angle_Diff'.
3180
3181         Under normal circumstances we are usually close to the desired range
3182         of angle values, so that the remainder is not really necessary.
3183
3184         * src/base/fttrigon.c (FT_Angle_Diff): Use loops instead of remainder.
3185
3186         * src/autofit/aftypes.h (AF_ANGLE_DIFF): Ditto in the unused macro.
3187
3188 2015-03-21  Werner Lemberg  <wl@gnu.org>
3189
3190         [truetype] Improve `gvar' handling.
3191
3192         * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Correctly handle
3193         single-element runs.  Cf. glyph `Q' in Skia.ttf with weights larger
3194         than the default.
3195
3196 2015-03-20  Alexei Podtelezhnikov <apodtele@gmail.com>
3197
3198         * src/base/fttrigon.c (FT_Vector_Rotate): Minor refactoring.
3199
3200 2015-03-17  Alexei Podtelezhnikov <apodtele@gmail.com>
3201
3202         Fix Savannah bug #44412 (part 2).
3203
3204         * src/base/fttrigon.c (FT_Sin, FT_Cos, FT_Tan): Call `FT_Vector_Unit'.
3205
3206 2015-03-11  Werner Lemberg  <wl@gnu.org>
3207
3208         [autofit] Add support for Arabic script.
3209
3210         Thanks to Titus Nemeth <tn@tntypography.eu> for guidance!
3211
3212         * src/autofit/afblue.dat: Add blue zone data for Arabic.
3213
3214         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
3215
3216         * src/autofit/afscript.h: Add Arabic standard characters.
3217
3218         * src/autofit/afranges.c: Add Arabic data.
3219
3220         * src/autofit/afstyles.h: Add Arabic data.
3221
3222         * docs/CHANGES: Document it.
3223
3224 2015-03-11  Werner Lemberg  <wl@gnu.org>
3225
3226         Rename `svxf86nm.h' to `svfntfmt.h'; update related symbols.
3227
3228         * include/internal/ftserv.h (FT_SERVICE_XFREE86_NAME_H): Renamed
3229         to...
3230         (FT_SERVICE_FONT_FORMAT_H): This.
3231
3232         * include/internal/services/svfntfmt.h (FT_XF86_FORMAT_*): Renamed
3233         to ...
3234         (FT_FONT_FORMAT_*): This.
3235
3236         src/base/ftfntfmt.c, src/bdf/bdfdrivr.c, src/cff/cffdrivr.c,
3237         src/cid/cidriver.c, src/pcf/pcfdrivr.c, src/pfr/pfrdrivr.c,
3238         src/truetype/ttdriver.c, src/type1/t1driver.c,
3239         src/type42/t42drivr.c, src/winfonts/winfnt.c: Updated.
3240
3241 2015-03-11  Werner Lemberg  <wl@gnu.org>
3242
3243         [base] Rename `FT_XFREE86_H' to `FT_FONT_FORMATS_H'.
3244
3245         * include/config/ftheader.h: Implement it.
3246         * src/base/ftfntfmt.c, docs/CHANGES: Updated.
3247
3248 2015-03-11  Werner Lemberg  <wl@gnu.org>
3249
3250         [base] Rename `FT_Get_X11_Font_Format' to `FT_Get_Font_Format'.
3251
3252         * include/ftfntfmt.h, src/base/ftfntfmt.c: Implement it.
3253
3254         * docs/CHANGES: Updated.
3255
3256 2015-03-11  Werner Lemberg  <wl@gnu.org>
3257
3258         Fix automatic copyright updating.
3259
3260         * src/tools/update-copyright: Make scanning of `no-copyright'
3261         actually work.
3262
3263         * src/tools/no-copyright: Don't include README in general.
3264
3265 2015-03-11  Werner Lemberg  <wl@gnu.org>
3266
3267         Rename `ftxf86.[ch]' to `ftfntfmt.[ch]'.
3268
3269         CMakeLists.txt, builds/amiga/makefile, builds/amiga/makefile.os4,
3270         builds/amiga/smakefile, builds/mac/FreeType.m68k_cfm.make.txt,
3271         builds/mac/FreeType.m68k_far.make.txt,
3272         builds/mac/FreeType.ppc_carbon.make.txt,
3273         builds/mac/FreeType.ppc_classic.make.txt, builds/symbian/bld.inf,
3274         builds/symbian/freetype.mmp, builds/wince/vc2005-ce/freetype.vcproj,
3275         builds/wince/vc2008-ce/freetype.vcproj,
3276         builds/windows/vc2005/freetype.vcproj,
3277         builds/windows/vc2008/freetype.vcproj,
3278         builds/windows/vc2010/freetype.vcxproj,
3279         builds/windows/vc2010/freetype.vcxproj.filters,
3280         builds/windows/visualc/freetype.dsp,
3281         builds/windows/visualc/freetype.vcproj,
3282         builds/windows/visualce/freetype.dsp,
3283         builds/windows/visualce/freetype.vcproj, docs/INSTALL.ANY,
3284         include/config/ftheader.h, include/ftfntfmt.h, modules.cfg,
3285         src/base/ftfntfmt.c, vms_make.com: Updated.
3286
3287 2015-03-10  Alexei Podtelezhnikov <apodtele@gmail.com>
3288
3289         Fix Savannah bug #44412 (part 1).
3290
3291         * src/base/ftstroke.c (ft_stroker_inside): Handle near U-turns.
3292
3293 2015-03-10  Werner Lemberg  <wl@gnu.org>
3294
3295         [base] Rename `FT_Bitmap_New' to `FT_Bitmap_Init'.
3296
3297         * include/ftbitmap.h, src/base/ftbitmap.c: Implement it.
3298         Update all callers.
3299
3300         * docs/CHANGES: Updated.
3301
3302 2015-03-06  Werner Lemberg  <wl@gnu.org>
3303
3304         * src/sfnt/ttload.c (tt_face_load_font_dir): Fix compiler warning.
3305
3306         Found by Alexei.
3307
3308 2015-03-05  Alexei Podtelezhnikov <apodtele@gmail.com>
3309
3310         * src/base/ftstroke.c: Simplify.
3311
3312 2015-03-04  Werner Lemberg  <wl@gnu.org>
3313
3314         [truetype] Some fixes and code refactoring in `ttgxvar.c'.
3315
3316         * src/truetype/ttgxvar.c (ft_var_readpackedpoints): Fix return value
3317         of `point_cnt' if two bytes are read.
3318         Use a more vertical coding style.
3319         (ft_var_readpackeddeltas): Use FT_UInt for `delta_cnt' parameter.
3320         Use a more vertical coding style.
3321
3322 2015-03-03  Werner Lemberg  <wl@gnu.org>
3323
3324         [autofit] Fix Savannah bug #44241.
3325
3326         * src/autofit/aflatin.c (af_latin_metrics_init_blues): Reject glyphs
3327         with less than 3 points.
3328
3329 2015-03-02  Werner Lemberg  <wl@gnu.org>
3330
3331         Simplify `TYPEOF' macro.
3332
3333         No need for two arguments.
3334
3335         * include/config/ftconfig.h, builds/unix/ftconfig.in,
3336         builds/vms/ftconfig.h (TYPEOF): Updated.
3337
3338         * include/internal/ftobjs.h (FT_PAD_FLOOR, FT_PIX_FLOOR),
3339         src/autofit/afwarp.h (AF_WARPER_FLOOR): Updated.
3340
3341 2015-03-01  Werner Lemberg  <wl@gnu.org>
3342
3343         Various compiler warning fixes for `make multi'.
3344
3345         * src/autofit/afcjk.c (af_cjk_hints_compute_blue_edges),
3346         src/autofit/aflatin.c (af_latin_hint_compute_blue_edges,
3347         af_latin_hint_edges), src/autofit/aflatin2.c
3348         (af_latin2_hints_compute_blue_edges, af_latin2_hint_edges): Declare
3349         as `static'.
3350
3351         * src/cache/ftccmap.c (FTC_CMAP_QUERY_HASH, FTC_CMAP_NODE_HASH):
3352         Removed.  Unused.
3353         * src/cache/ftcimage.c: Include FT_INTERNAL_OBJECTS_H.
3354         * src/cache/ftcmanag.c (FTC_LRU_GET_MANAGER): Removed.  Unused.
3355
3356         * src/cff/cf2intrp.c: Include `cf2intrp.h'.
3357         * src/cff/cffdrivr.c (PAIR_TAG): Removed.  Unused.
3358
3359         * src/gzip/ftgzip.c (NO_DUMMY_DECL): Removed.  Unused.
3360
3361         * src/psaux/afmparse.c (afm_parser_read_int): Declare as `static'.
3362
3363         * src/pshinter/pshalgo.c (STRONGER, PSH_ZONE_MIN, PSH_ZONE_MAX):
3364         Removed.  Unused.
3365
3366         * src/raster/ftraster.c (Render_Glyph): Declare as `static'.
3367
3368         * src/sfnt/ttpost.c (load_format_20): Fix signedness warning.
3369
3370         * src/truetype/ttdriver.c (PAIR_TAG): Removed.  Unused.
3371         * src/truetype/ttsubpix.c (is_member_of_family_class,
3372         is_member_of_style_class): Declare as `static'.
3373
3374         * src/type1/t1gload.c (T1_Parse_Glyph_And_Get_Char_String): Declare
3375         as `static'.
3376         * src/type1/t1load.c (mm_axis_unmap, mm_weights_unmap): Declare as
3377         `static'.
3378         (T1_FIELD_COUNT): Removed.  Unused.
3379         * src/type1/t1parse.h (T1_Done_Table): Removed.  Unused.
3380
3381         * src/type42/t42parse.c (T1_Done_Table): Removed.  Unused.
3382
3383 2015-02-25  Werner Lemberg  <wl@gnu.org>
3384
3385         [psaux] Signedness fixes.
3386
3387         * include/internal/psaux.h, src/psaux/afmparse.c,
3388         src/psaux/afmparse.h, src/psaux/psconv.c, src/psaux/psobjs.c,
3389         src/psaux/t1cmap.c, src/psaux/t1decode.c: Apply.
3390
3391 2015-02-25  Werner Lemberg  <wl@gnu.org>
3392
3393         [otvalid] Signedness fixes.
3394
3395         * src/otvalid/otvcommn.c, src/otvalid/otvgdef.c,
3396         src/otvalid/otvgpos.c, src/otvalid/otvgsub.c, src/otvalid/otvmath.c:
3397         Apply.
3398
3399 2015-02-25  Werner Lemberg  <wl@gnu.org>
3400
3401         * src/bzip2/ftbzip2.c (ft_bzip2_alloc): Signedness fix.
3402
3403 2015-02-25  Werner Lemberg  <wl@gnu.org>
3404
3405         [lzw] Signedness fixes.
3406
3407         * src/lzw/ftzopen.c, src/lzw/ftzopen.h: Apply.
3408
3409 2015-02-25  Werner Lemberg  <wl@gnu.org>
3410
3411         [gxvalid] Signedness fixes.
3412
3413         * src/gxvalid/gxvbsln.c, src/gxvalid/gxvcommn.c,
3414         src/gxvalid/gxvcommn.h, src/gxvalid/gxvjust.c,
3415         src/gxvalid/gxvkern.c, src/gxvalid/gxvlcar.c, src/gxvalid/gxvmort.c,
3416         src/gxvalid/gxvmort1.c, src/gxvalid/gxvmort2.c,
3417         src/gxvalid/gxvmorx.c, src/gxvalid/gxvmorx1.c,
3418         src/gxvalid/gxvmorx2.c, src/gxvalid/gxvopbd.c,
3419         src/gxvalid/gxvprop.c, src/gxvalid/gxvtrak.c: Apply.
3420
3421 2015-02-25  Werner Lemberg  <wl@gnu.org>
3422
3423         [cache] Signedness fixes.
3424
3425         * src/cache/ftcbasic.c, src/cache/ftccmap.c, src/cache/ftcimage.c,
3426         src/cache/ftcmanag.c, src/cache/ftcsbits.c: Apply.
3427
3428 2015-02-25  Werner Lemberg  <wl@gnu.org>
3429
3430         Change dimension fields in `FTC_ImageTypeRec' to unsigned type.
3431
3432         This doesn't break ABI.
3433
3434         * include/ftcache.h (FTC_ImageTypeRec): Use unsigned types for
3435         `width' and `height'.
3436
3437         * docs/CHANGES: Document it.
3438
3439 2015-02-25  Werner Lemberg  <wl@gnu.org>
3440
3441         [cache] Don't use `labs'.
3442
3443         This is the only place in FreeType where this function was used.
3444
3445         * include/config/ftstdlib.h (ft_labs): Remove.
3446
3447         * src/cache/ftcimage.c (ftc_inode_weight): Replace `ft_labs' with
3448         `FT_ABS'.
3449
3450 2015-02-23  Werner Lemberg  <wl@gnu.org>
3451
3452         [cache] Replace `FT_PtrDist' with `FT_Offset'.
3453
3454         * src/cache/ftccache.h (FTC_NodeRec): `FT_Offset' (a.k.a. `size_t')
3455         is a better choice for `hash' to hold a pointer than `FT_PtrDist'
3456         (a.k.a. `ptrdiff_t'), especially since the latter is signed,
3457         causing zillions of signedness warnings.  [Note that `hash' was of
3458         type `FT_UInt32' before the change to `FT_PtrDist'.]
3459         Update all users.
3460
3461         * src/cache/ftcbasic.c, src/cache/ftccache.c, src/cache/ftccmap.c,
3462         src/cache/ftcglyph.c, src/cache/ftcglyph.h: Updated.
3463
3464 2015-02-23  Werner Lemberg  <wl@gnu.org>
3465
3466         [smooth, raster] Re-enable standalone compilation.
3467
3468         * src/raster/ftraster.c (FT_RENDER_POOL_SIZE, FT_MAX)
3469         [_STANDALONE_]: Define macros.
3470
3471         * src/smooth/ftgrays.c (FT_RENDER_POOL_SIZE, FT_MAX, FT_ABS,
3472         FT_HYPOT) [_STANDALONE_]: Define macros.
3473
3474 2015-02-22  Werner Lemberg  <wl@gnu.org>
3475
3476         [smooth] Signedness fixes.
3477
3478         * src/smooth/ftgrays.c, src/smooth/ftsmooth.c: Apply.
3479
3480 2015-02-22  Werner Lemberg  <wl@gnu.org>
3481
3482         * src/raster/ftraster.c: Use the file's typedefs everywhere.
3483
3484 2015-02-22  Werner Lemberg  <wl@gnu.org>
3485
3486         * src/sfnt/ttpost.c (load_format_20): Fix error tracing message.
3487
3488         Bug introduced 6 commits earlier.
3489
3490 2015-02-22  Werner Lemberg  <wl@gnu.org>
3491
3492         [pshinter] Fix thinko.
3493
3494         * src/pshinter/pshalgo.c (psh_glyph_find_strong_points): Correctly
3495         check `count'.
3496         Bug introduced two commits earlier.
3497
3498 2015-02-22  Werner Lemberg  <wl@gnu.org>
3499
3500         [raster] Signedness fixes.
3501
3502         * src/raster/ftraster.c, src/raster/ftrend1.c: Apply.
3503
3504 2015-02-22  Werner Lemberg  <wl@gnu.org>
3505
3506         [pshinter] Signedness fixes.
3507
3508         * src/pshinter/pshalgo.c, src/pshinter/pshglob.c,
3509         src/pshinter/pshrec.c: Apply.
3510
3511 2015-02-22  Werner Lemberg  <wl@gnu.org>
3512
3513         [pshinter] Use macros for (unsigned) flags, not enumerations.
3514
3515         * src/pshinter/pshalgo.h (PSH_Hint_Flags): Replace with macros.
3516         Updated.
3517         * src/pshinter/pshrec.h (PS_Hint_Flags): Replace with macros.
3518
3519 2015-02-22  Werner Lemberg  <wl@gnu.org>
3520
3521         * src/pshinter/pshrec.c: Simplify.
3522         (ps_hints_open, ps_hints_stem): Remove switch statement.
3523
3524 2015-02-22  Werner Lemberg  <wl@gnu.org>
3525
3526         [sfnt] Signedness fixes.
3527
3528         * src/sfnt/pngshim.c, src/sfnt/sfobjs.c, src/sfnt/ttcmap.c,
3529         src/sfnt/ttkern.c, src/sfnt/ttload.c, src/sfnt/ttpost.c,
3530         src/sfnt/ttsbit.c: Apply.
3531         * src/sfnt/sfdriver.c: Apply.
3532         (sfnt_get_ps_name): Simplify.
3533
3534 2015-02-22  Werner Lemberg  <wl@gnu.org>
3535
3536         [bdf] Signedness fixes.
3537
3538         * src/bdf/bdf.h, src/bdf/bdfdrivr.c, src/bdf/bdfdrivr.h,
3539         src/bdf/bdflib.c: Apply.
3540
3541 2015-02-22  Werner Lemberg  <wl@gnu.org>
3542
3543         * src/bdf/bdflib.c (_bdf_atous): New function.
3544         (_bdf_parse_glyphs, _bdf_parse_start): Use it.
3545
3546 2015-02-22  Werner Lemberg  <wl@gnu.org>
3547
3548         [pcf] Signedness fixes.
3549
3550         * src/pcf/pcf.h, src/pcf/pcfdrivr.c: Apply.
3551         * src/pcf/pcfread.c: Apply.
3552         (pcf_get_encodings): Ignore invalid negative encoding offsets.
3553
3554 2015-02-21  Werner Lemberg  <wl@gnu.org>
3555
3556         * src/winfonts/winfnt.c: Signedness fixes.
3557
3558 2015-02-21  Werner Lemberg  <wl@gnu.org>
3559
3560         [type42] Signedness fixes.
3561
3562         * src/type42/t42parse.c, src/type42/t42parse.h,
3563         src/type42/t42types.h: Apply.
3564
3565 2015-02-21  Werner Lemberg  <wl@gnu.org>
3566
3567         [pfr] Signedness fixes.
3568
3569         * src/pfr/pfrdrivr.c, src/pfr/pfrgload.c, src/pfr/pfrload.c,
3570         src/pfr/pfrload.h, src/pfr/pfrobjs.c, src/pfr/pfrsbit.c,
3571         src/pfr/pfrtypes.h: Apply.
3572
3573 2015-02-21  Werner Lemberg  <wl@gnu.org>
3574
3575         [cff] Minor signedness fixes related to last commit.
3576
3577         * src/cff/cf2ft.c, src/cff/cf2intrp.c, src/cff/cffgload.c: Apply.
3578
3579 2015-02-20  Werner Lemberg  <wl@gnu.org>
3580
3581         [cff] Thinkos in bias handling.
3582
3583         Only the final result is always positive.
3584
3585         Bug introduced three commits earlier.
3586
3587         * src/cff/cffgload.c, src/cff/cffgload.h: Apply.
3588
3589 2015-02-20  Werner Lemberg  <wl@gnu.org>
3590
3591         [cid] Fix signedness issues and emit some better error codes.
3592
3593         * src/cid/cidgload.c, src/cid/cidload.h, src/cid/cidobjs.c,
3594         src/cid/cidparse.h: Apply.
3595         * src/cid/cidload.c: Apply.
3596         (parse_fd_array): Reject negative values for number of dictionaries.
3597         * src/cid/cidparse.c: Apply.
3598         (cid_parser_new): Reject negative values for hex data length.
3599
3600 2015-02-20  Werner Lemberg  <wl@gnu.org>
3601
3602         [cff] Signedness fixes for new engine.
3603
3604         * src/cff/cf2arrst.c, src/cff/cf2fixed.h, src/cff/cf2ft.c,
3605         src/cff/cf2ft.h, src/cff/cf2hints.c, src/cff/cf2intrp.c: Apply.
3606
3607 2015-02-20  Werner Lemberg  <wl@gnu.org>
3608
3609         [cff] Signedness fixes for basic infrastructure and old engine.
3610
3611         * include/internal/pshints.h, src/cff/cffdrivr.c,
3612         src/cff/cffgload.c, src/cff/cffgload.h, src/cff/cffload.c,
3613         src/cff/cffobjs.c, src/cff/cffparse.c, src/pshinter/pshrec.c: Apply.
3614
3615 2015-02-19  Werner Lemberg  <wl@gnu.org>
3616
3617         * src/truetype/ttgxvar.c (TT_Get_MM_Var): Ignore `countSizePairs'.
3618
3619         This is hard-coded to value 2 in `fvar' version 1.0 (and no newer
3620         version exists), but some fonts set it incorrectly.
3621
3622         Problem reported by Adam Twardoch <adam@fontlab.com>.
3623
3624 2015-02-19  Werner Lemberg  <wl@gnu.org>
3625
3626         [cff] Emit better error code for invalid private dict size.
3627
3628         * src/cff/cffparse.c (cff_parse_private_dict): Reject negative
3629         values for size and offset.
3630
3631 2015-02-19  Werner Lemberg  <wl@gnu.org>
3632
3633         [autofit] Fix signedness issues.
3634
3635         * src/autofit/afangles.c, src/autofit/afcjk.c,
3636         src/autofit/afglobal.c, src/autofit/afhints.c,
3637         src/autofit/aflatin.c, src/autofit/aflatin2.c, src/autofit/afwarp.c,
3638         src/autofit/hbshim.c: Apply.
3639
3640 2015-02-19  Werner Lemberg  <wl@gnu.org>
3641
3642         [autofit] Use macros for (unsigned) flags, not enumerations.
3643
3644         This harmonizes with other code in FreeType (and reduces the number
3645         of necessary casts to avoid compiler warnings).
3646
3647         * src/autofit/afblue.hin: Make flag macros unsigned.
3648         * src/autofit/afblue.h: Regenerated.
3649
3650         * src/autofit/afcjk.h: Replace flag enumeration with macros.
3651         * src/autofit/afcjk.c: Updated.
3652
3653         * src/autofit/afhints.h (AF_Flags, AF_Edge_Flags): Replace with
3654         macros.
3655         * src/autofit/afhints.c: Updated.
3656
3657         * src/autofit/aflatin.h: Replace flag enumerations with macros.
3658         * src/autofit/aflatin.c, src/autofit/aflatin2.c: Updated.
3659
3660         * src/autofit/aftypes.h (AF_ScalerFlags): Replace with macros.
3661
3662 2015-02-18  Werner Lemberg  <wl@gnu.org>
3663
3664         [type1] Fix signedness issues.
3665
3666         * include/internal/psaux.h, include/internal/t1types.h,
3667         src/psaux/psobjs.c, src/psaux/psobjs.h, src/psaux/t1decode.c,
3668         src/type1/t1gload.c, src/type1/t1load.c, src/type1/t1parse.c: Apply.
3669
3670 2015-02-18  Werner Lemberg  <wl@gnu.org>
3671
3672         [psaux, type1] Fix minor AFM issues.
3673
3674         * include/internal/t1types.h (AFM_KernPairRec): Make indices
3675         unsigned.
3676         Update users.
3677         (AFM_FontInfoRec): Make element counters unsigned.
3678         Update users.
3679         * src/psaux/afmparse.h (AFM_ValueRec): Add union member for unsigned
3680         int.
3681
3682         * src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs):
3683         Reject negative values for number of kerning elements.
3684
3685         * src/type1/t1afm.c, src/tools/test_afm.c: Updated.
3686
3687 2015-02-18  Werner Lemberg  <wl@gnu.org>
3688
3689         Don't use `FT_PtrDist' for lengths.
3690
3691         Use FT_UInt instead.
3692
3693         * include/internal/psaux.h (PS_Table_FuncsRec, PS_TableRec,
3694         T1_DecoderRec): Do it.
3695
3696         * include/internal/t1types.h (T1_FontRec): Ditto.
3697
3698         * src/cid/cidload.c (cid_parse_dict): Updated.
3699         * src/pfr/pfrload.c (pfr_extra_item_load_font_id): Ditto.
3700         * src/psaux/psobjs.c (ps_table_add), src/psaux/psobjs.h: Ditto.
3701         * src/type1/t1load.c (parse_blend_axis_types, parse_encoding,
3702         parse_chharstrings, parse_dict): Ditto.
3703         * src/type42/t42parse.c (t42_parse_encoding, t42_parse_charstrings,
3704         t42_parse_dict): Ditto.
3705
3706 2015-02-18  Werner Lemberg  <wl@gnu.org>
3707
3708         * src/type1/t1driver.c (t1_ps_get_font_value): Clean up.
3709         This handles negative values better, avoiding many casts.
3710
3711 2015-02-17  Werner Lemberg  <wl@gnu.org>
3712
3713         [base] Fix Savannah bug #44284.
3714
3715         * src/base/ftcalc.c (FT_MulFix): Typos.
3716
3717 2015-02-17  Werner Lemberg  <wl@gnu.org>
3718
3719         [truetype] Finish compiler warning fixes for signedness issues.
3720
3721         * src/truetype/ttgxvar.c, src/truetype/ttsubpix.c,
3722         src/truetype/ttsubpix.h: Apply.
3723
3724 2015-02-17  Werner Lemberg  <wl@gnu.org>
3725
3726         * src/truetype/ttsubpix.c: Adding missing `static' keywords.
3727
3728 2015-02-17  Werner Lemberg  <wl@gnu.org>
3729
3730         [truetype] More signedness fixes.
3731
3732         * include/internal/tttypes.h, src/truetype/ttinterp.h,
3733         src/truetype/ttobjs.h, src/truetype/ttinterp.c,
3734         src/truetype/ttobjs.c: Apply.
3735
3736 2015-02-17  Werner Lemberg  <wl@gnu.org>
3737
3738         [truetype] Various signedness fixes.
3739
3740         * include/internal/ftgloadr.h, src/truetype/ttpload.c: Apply.
3741
3742         * src/truetype/ttgload.c: Apply.
3743         (TT_Get_VMetrics): Protect against invalid ascenders and descenders
3744         while constructing advance height.
3745
3746 2015-02-16  Werner Lemberg  <wl@gnu.org>
3747
3748         [base] Finish compiler warning fixes for signedness issues.
3749
3750         * src/base/ftglyph.c, src/base/ftlcdfil.c, src/base/ftstroke.c:
3751         Apply.
3752
3753 2015-02-16  Werner Lemberg  <wl@gnu.org>
3754
3755         * include/tttables.h (TT_OS2): `fsType' must be FT_UShort.
3756
3757 2015-02-16  Werner Lemberg  <wl@gnu.org>
3758
3759         More minor signedness warning fixes.
3760
3761         * src/base/ftbbox.c, src/base/ftbitmap.c, src/base/fttrigon.c,
3762         src/base/ftutil.c: Apply.
3763
3764 2015-02-16  Werner Lemberg  <wl@gnu.org>
3765
3766         Next round of minor compiler warning fixes.
3767
3768         * include/internal/ftrfork.h (FT_RFork_Ref): Change `offset' member
3769         type to `FT_Long'.
3770         (CONST_FT_RFORK_RULE_ARRAY_BEGIN): Add `static' keyword.
3771
3772         * include/internal/ftstream.h (FT_Stream_Pos): Return `FT_ULong'.
3773
3774         * src/base/ftoutln.c, src/base/ftrfork.c, src/base/ftstream.c:
3775         Signedess fixes.
3776
3777 2015-02-16  Werner Lemberg  <wl@gnu.org>
3778
3779         Various minor signedness fixes.
3780
3781         * include/ftadvanc.h, include/internal/ftobjs.h,
3782         src/base/ftgloadr.c, src/base/ftobjs.c: Apply.
3783
3784 2015-02-16  Werner Lemberg  <wl@gnu.org>
3785
3786         New `TYPEOF' macro.
3787
3788         This helps suppress signedness warnings, avoiding issues with
3789         implicit conversion changes.
3790
3791         * include/config/ftconfig.h, builds/unix/ftconfig.in,
3792         builds/vms/ftconfig.h (TYPEOF): Define.
3793
3794         * include/internal/ftobjs.h (FT_PAD_FLOOR, FT_PIX_FLOOR),
3795         src/autofit/afwarp.h (AF_WARPER_FLOOR): Use it.
3796
3797 2015-02-16  Werner Lemberg  <wl@gnu.org>
3798
3799         * src/base/ftsystem.c: Use casts in standard C function wrappers.
3800         (ft_alloc, ft_realloc, ft_ansi_stream_io, FT_Stream_Open): Do it.
3801
3802 2015-02-16  Werner Lemberg  <wl@gnu.org>
3803
3804         Fix Savannah bug #44261.
3805
3806         * builds/unix/detect.mk (setup) [unix]: Set `CONFIG_SHELL' in the
3807         environment also while calling the configure script.
3808
3809 2015-02-16  Werner Lemberg  <wl@gnu.org>
3810
3811         * include/internal/ftmemory.h: Add some `FT_Offset' casts.
3812         (FT_MEM_SET, FT_MEM_COPY, FT_MEM_MOVE, FT_ARRAY_ZERO, FT_ARRAY_COPY,
3813         FT_MEM_MOVE): Do it.
3814
3815 2015-02-15  Werner Lemberg  <wl@gnu.org>
3816
3817         [base] Clean up signedness issues in `ftdbgmem.c'.
3818
3819         Also fix other minor issues.
3820
3821         * src/base/ftdbgmem.c (FT_MemTableRec): Replace all FT_ULong types
3822         with FT_Long for consistency.
3823         (ft_mem_primes): Change type to `FT_Int'.
3824         (ft_mem_closest_prime, ft_mem_table_set): Updated.
3825
3826         (ft_mem_debug_panic, ft_mem_debug_alloc, ft_mem_debug_free,
3827         ft_mem_debug_realloc): Use `static' keyword and fix signedness
3828         warnings where necessary.
3829
3830         (ft_mem_table_resize, ft_mem_table_new, ft_mem_table_destroy,
3831         ft_mem_table_get_nodep, ft_mem_debug_init, FT_DumpMemory): Fix types
3832         and add or remove casts to avoid signedness warnings.
3833
3834 2015-02-15  Werner Lemberg  <wl@gnu.org>
3835
3836         [base] Clean up signedness in arithmetic functions.
3837
3838         This makes the code more readable and reduces compiler warnings.
3839
3840         * src/base/ftcalc.c (FT_MulDiv, FT_MulDiv_No_Round, FT_MulFix,
3841         FT_DivFix): Convert input parameters to unsigned, do the
3842         computation, then convert the result back to signed.
3843         (ft_corner_orientation): Fix casts.
3844
3845 2015-02-07  Werner Lemberg  <wl@gnu.org>
3846
3847         [sfnt] Fix Savannah bug #44184.
3848
3849         * src/sfnt/ttload.c (check_table_dir, tt_face_load_font_dir): No
3850         longer reject `htmx' and `vmtx' tables with invalid length but
3851         sanitize them.
3852
3853 2015-02-06  Jon Anderson  <jon@websupergoo.com>
3854
3855         [truetype] Fix regression in the incremental glyph loader.
3856
3857         * src/truetype/ttgload.c (load_truetype_glyph): For incremental
3858         fonts, the glyph index may be greater than the number of glyphs
3859         indicated, so guard the check with a preprocessor conditional.
3860
3861 2015-02-06  Werner Lemberg  <wl@gnu.org>
3862
3863         [autofit] Fix potential memory leak.
3864
3865         While this doesn't show up with FreeType, exactly the same code
3866         leaks with ttfautohint's modified auto-hinter code (which gets used
3867         in a slightly different way).
3868
3869         It certainly doesn't harm since it is similar to already existing
3870         checks in the code for embedded arrays.
3871
3872         * src/autofit/afhints.c (af_glyph_hints_reload): Set `max_contours'
3873         and `max_points' for all cases.
3874
3875 2015-01-31  Werner Lemberg  <wl@gnu.org>
3876
3877         [autofit] Add support for Thai script.
3878
3879         Thanks to Ben Mitchell <ben@rosettatype.com> for guidance with blue
3880         zone characters!
3881
3882         * src/autofit/afblue.dat: Add blue zone data for Thai.
3883
3884         * src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
3885
3886         * src/autofit/afscript.h: Add Thai standard characters.
3887
3888         * src/autofit/afranges.c: Add Thai data.
3889
3890         * src/autofit/afstyles.h: Add Thai data.
3891
3892 2015-01-23  Behdad Esfahbod  <behdad@behdad.org>
3893
3894         [raster] Handle `FT_RASTER_FLAG_AA' correctly.
3895
3896         This fixes a breakage caused by the commit `[raster] Remove
3897         5-level gray AA mode from monochrome rasterizer.'.
3898
3899         Problem reported by Markus Trippelsdorf <markus@trippelsdorf.de>.
3900
3901         * src/raster/ftraster.c (ft_black_render): Handle
3902         `FT_RASTER_FLAG_AA'.
3903
3904         * src/raster/ftrend1.c (ft_raster1_render): Remove gray AA mode
3905         remnants.
3906
3907 2015-01-18  Werner Lemberg  <wl@gnu.org>
3908
3909         * src/base/ftobjs.c (FT_New_Library): Fix compiler warning.
3910
3911 2015-01-18  Chris Liddell  <chris.liddell@artifex.com>
3912
3913         [raster] Fix Savannah bug #44022.
3914
3915         Add fallback for glyphs with degenerate bounding boxes.
3916
3917         If a glyph has only one very narrow feature, the bbox can end up
3918         with either the width or height of the bbox being 0, in which case
3919         no raster memory is allocated and no attempt is made to render the
3920         glyph.  This is less than ideal when the drop-out compensation in
3921         the rendering code would actually result in the glyph being
3922         rendered.
3923
3924         This problem can be observed with the `I' glyph (gid 47) in the
3925         Autodesk RomanS TrueType font.
3926
3927         * src/raster/ftrend1.c (ft_raster1_render): Add a fallback if either
3928         dimension is zero to explicitly round up/down (instead of simply
3929         round).
3930
3931 2015-01-17  Werner Lemberg  <wl@gnu.org>
3932
3933         Add some tools to handle yearly copyright notice updates.
3934
3935         We are now following the GNU guidelines: A new release automatically
3936         means that the copyright year of all affected files gets updated; it
3937         is no longer used to track years of modification changes.
3938
3939         * src/tools/update-copyright-year: New Perl script.
3940         * src/tools/update-copyright: New shell script that calls
3941         `update-copyright-year' on all files.
3942         * src/tools/no-copyright: Exceptions that should not be handled by
3943         `update-copyright'
3944
3945 2015-01-14  Werner Lemberg  <wl@gnu.org>
3946
3947         * docs/CHANGES: Updated, using a description from Behdad.
3948
3949 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
3950
3951         * src/autofit/afmodule.c (af_autofitter_done): Fix compiler warning.
3952
3953 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
3954
3955         [autofit] Add embedded array of segments and edges.
3956
3957         Avoids multiple mallocs per typical glyphs.
3958
3959         With this and recent changes to avoid mallocs, the thread-safe
3960         stack-based loader is now as fast as the previous model that had one
3961         cached singleton.
3962
3963         * src/autofit/afhints.h (AF_SEGMENTS_EMBEDDED, AF_EDGES_EMBEDDED):
3964         New macros.
3965         (AF_AxisHintsRec): Add two arrays for segments and edges.
3966
3967         * src/autofit/afhints.c (af_axis_hints_new_segment): Only allocate
3968         data if number of segments exceeds given threshold value.
3969         (af_axis_hints_new_edge):  Only allocate data if number of edges
3970         exceeds given threshold value.
3971         (af_glyph_hints_done): Updated.
3972
3973 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
3974
3975         [autofit] Add embedded arrays for points and contours.
3976
3977         This avoids at least two malloc calls for typical glyphs.
3978
3979         * src/autofit/afhints.h (AF_POINTS_EMBEDDED, AF_CONTOURS_EMBEDDED):
3980         New macros.
3981         (AF_GlyphHintsRec): Add two arrays for contours and points.
3982
3983         * src/autofit/afhints.c (af_glyph_hints_init, af_glyph_hints_done):
3984         Updated.
3985         (af_glyph_hints_reload): Only allocate data if number of contours or
3986         points exceeds given threshold values.
3987
3988 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
3989
3990         [autofit] Allocate hints object on the stack.
3991
3992         This avoids one malloc per load.
3993
3994         * src/autofit/afloader.h (AF_LoaderRec): Change type of `hints' to
3995         `AF_GlyphHints'.
3996         Update prototype.
3997
3998         * src/autofit/afloader.c (af_loader_init): Use `AF_GlyphHints'
3999         parameter instead of `FT_Memory'.
4000         (af_loader_done): Directly reset `load_hints'.
4001         (af_loader_load_g): Updated.
4002
4003         * src/autofit/afmodule.c (af_autofitter_load_glyph): Use local
4004         `hints' object.
4005
4006 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4007
4008         [autofit] Reuse slot glyph loader.
4009
4010         No need to create a new glyph loader; we can reuse the one from
4011         `slot->internal->loader'.  It's hard to tell why it was written that
4012         way originally, but new code looks sound and correct to me, and
4013         avoids lots of allocations.
4014
4015         * src/autofit/afloader.c (af_loader_init): Change return type to
4016         `void'.
4017         Don't call `FT_GlyphLoader_New'.
4018         (af_loader_reset): Don't call `FT_GlyphLoader_Rewind'.
4019         (af_loader_load_g): Update code to use `internal->loader', which
4020         doesn't need copying of data.
4021
4022         * src/autofit/afloader.h (AF_LoaderRec): Remove `gloader' member.
4023         Update prototype.
4024
4025         * src/autofit/afmodule.c (af_autofitter_load_glyph): Updated.
4026
4027 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4028
4029         [autofit] Remove (unused) support for composite glyphs.
4030
4031         We never have to deal with composite glyphs in the autohinter, as
4032         those will be loaded into FORMAT_OUTLINE by the recursed
4033         `FT_Load_Glyph' function.
4034
4035         In the rare cases that FT_LOAD_NO_RECURSE is set, it will imply
4036         FT_LOAD_NO_SCALE as per `FT_Load_Glyph', which then implies
4037         FT_LOAD_NO_HINTING:
4038
4039           /* resolve load flags dependencies */
4040
4041           if ( load_flags & FT_LOAD_NO_RECURSE )
4042             load_flags |= FT_LOAD_NO_SCALE         |
4043                           FT_LOAD_IGNORE_TRANSFORM;
4044
4045           if ( load_flags & FT_LOAD_NO_SCALE )
4046           {
4047             load_flags |= FT_LOAD_NO_HINTING |
4048                           FT_LOAD_NO_BITMAP;
4049
4050             load_flags &= ~FT_LOAD_RENDER;
4051           }
4052
4053         and as such the auto-hinter is never called.  Thus, the recursion in
4054         `af_loader_load_g' never actually happens.  So remove the depth
4055         counter as well.
4056
4057         * src/autofit/afloader.c (af_loader_load_g): Remove `depth'
4058         parameter.
4059         <FT_GLYPH_FORMAT_COMPOSITE>: Remove associated code.
4060         (af_loader_load_glyph): Updated.
4061
4062 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4063
4064         [raster] Fix uninitialized memory access.
4065
4066         Apparently `ras.cProfile' might be uninitialized.  This will be the
4067         case if `ras.top == ras.cProfile->offset', as can be seen in
4068         `End_Profile'.  The overshoot code introduced in a change `Fix B/W
4069         rasterization of subglyphs with different drop-out modes.' (from
4070         2009-06-18) violated this, accessing `ras.cProfile->flags'
4071         unconditionally just before calling `End_Profile' (which then
4072         detected that `cProfile' is uninitialized and didn't touch it).
4073
4074         This was harmless, and was not detected by valgrind before because
4075         the objects were allocated on the `raster_pool', which was always
4076         initialized.  With recent change to allocate raster buffers on the
4077         stack, valgrind now reported this invalid access.
4078
4079         * src/raster/ftraster.c (Convert_Glyph): Don't access an
4080         uninitialized `cProfile'.
4081
4082 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4083
4084         [smooth] Fix uninitialized memory access.
4085
4086         Looks like `ras.span_y' could always be used without initialization.
4087         This was never detected by valgrind before because the library-wide
4088         `raster_pool' was used for the worker object and `raster_pool' was
4089         originally zero'ed.  But subsequent reuses of it were using `span_y'
4090         uninitialized.  With the recent change to not use `render_pool' and
4091         allocate worker and buffer on the stack, valgrind now detects this
4092         uninitialized access.
4093
4094         * src/smooth/ftgrays.c (gray_raster_render): Initialize
4095         `ras.span_y'.
4096
4097 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4098
4099         [base] Don't initialize unused `driver->glyph_loader'.
4100
4101         * src/base/ftobjs.c (Destroy_Driver): Don't call
4102         `FT_GlyphLoader_Done'.
4103         (FT_Add_Module): Don't call `FT_GlyphLoader_New'.
4104
4105 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4106
4107         [base] Don't allocate `library->raster_pool' anymore.
4108
4109         It's unused after the following commits:
4110
4111           [raster] Allocate render pool for mono rasterizer on the stack.
4112           [raster] Remove 5-level gray AA mode from monochrome rasterizer.
4113
4114         The value of FT_RENDER_POOL_SIZE still serves the purpose it used to
4115         serve, which is, to adjust the pool size.  But the pool is now
4116         allocated on the stack on demand.
4117
4118         * src/base/ftobjs.c (FT_New_Library, FT_Done_Library): Implement.
4119
4120 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4121
4122         [base] Do not reorder library->renderers upon use.
4123
4124         Instead of keeping `library->renderers' in a MRU order, just leave
4125         it as-is.  The MRU machinery wasn't thread-safe.
4126
4127         With this patch, rasterizing glyphs from different faces from
4128         different threads doesn't fail choosing rasterizer
4129         (FT_Err_Cannot_Render_Glyph).
4130
4131         Easiest to see that crash was to add a `printf' (or otherwise let
4132         thread yield in FT_Throw with debugging enabled).
4133
4134         * src/base/ftobjs.c (FT_Render_Glyph_Internal), src/base/ftoutln.c
4135         (FT_Outline_Render): Don't call `FT_Set_Renderer'.
4136
4137 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4138
4139         [raster] Allocate render pool for mono rasterizer on the stack.
4140
4141         Instead of using the `render_pool' member of `FT_Library' that is
4142         provided down to the rasterizer, completely ignore that and allocate
4143         needed objects on the stack instead.
4144
4145         With this patch, rasterizing glyphs from different faces from
4146         different threads doesn't crash in the monochrome rasterizer.
4147
4148         * src/raster/ftraster.c (black_TRaster): Remove `buffer',
4149         `buffer_size', and `worker' members.
4150
4151         (ft_black_render): Create `buffer' locally.
4152         (ft_black_reset): Updated.
4153
4154 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4155
4156         [raster] Remove 5-level gray AA mode from monochrome rasterizer.
4157
4158         It was off by default and couldn't be turned on at runtime.  And the
4159         smooth rasterizer superceded it over ten years ago.  No point in
4160         keeping.  Comments suggested that it was there for compatibility
4161         with FreeType 1.
4162
4163         550 lines down.
4164
4165         * src/raster/ftraster.c (FT_RASTER_OPTION_ANTI_ALIASING,
4166         RASTER_GRAY_LINES): Remove macros and all associated code.
4167
4168         (black_TWorker): Remove `gray_min_x' and `gray_max_x'.
4169         (black_TRaster): Remove `grays' and `gray_width'.
4170
4171         (Vertical_Sweep_Init, Vertical_Sweep_Span, Vertical_Sweep_Drop,
4172         ft_black_render): Updated.
4173
4174         * src/raster/ftrend1.c (ft_raster1_render): Simplify code.
4175         (ft_raster5_renderer_class): Removed.
4176
4177 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4178
4179         [smooth] Allocate render pool for smooth rasterizer on the stack.
4180
4181         Instead of using the `render_pool' member of `FT_Library' that is
4182         provided down to the rasterizer, completely ignore that and allocate
4183         needed objects on the stack instead.
4184
4185         With this patch, rasterizing glyphs from different faces from
4186         different threads doesn't crash in the smooth rasterizer.
4187
4188         Bugs:
4189
4190           https://bugzilla.redhat.com/show_bug.cgi?id=678397
4191           https://bugzilla.redhat.com/show_bug.cgi?id=1004315
4192           https://bugzilla.redhat.com/show_bug.cgi?id=1165471
4193           https://bugs.freedesktop.org/show_bug.cgi?id=69034
4194
4195         * src/smooth/ftgrays.c (gray_TRaster): Remove `buffer',
4196         `buffer_size', `band_size', and `worker' members.
4197
4198         (gray_raster_render): Create `buffer', `buffer_size', and
4199         `band_size' locally.
4200         (gray_raster_reset): Updated.
4201
4202 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4203
4204         [truetype] Allocate TT_ExecContext in TT_Size instead of TT_Driver.
4205
4206         Previously the code had stipulation for using a per-TT_Size exec
4207         context if `size->debug' was true.  But there was no way that
4208         `size->debug' could *ever* be true.  As such, the code was always
4209         using the singleton `TT_ExecContext' that was stored in `TT_Driver'.
4210         This was, clearly, not threadsafe.
4211
4212         With this patch, loading glyphs from different faces from different
4213         threads doesn't crash in the bytecode loader code.
4214
4215         * src/truetype/ttobjs.h (TT_SizeRec): Remove `debug' member.
4216         (TT_DriverRec): Remove `context' member.
4217
4218         * src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Remove
4219         `TT_ExecContext' code related to a global `TT_Driver' object.
4220
4221         (tt_driver_done): Don't remove `TT_ExecContext' object here but ...
4222         (tt_size_done_bytecode): ... here.
4223
4224         (tt_driver_init): Don't create `TT_ExecContext' object here but ...
4225         (tt_size_init_bytecode): ... here, only on demand.
4226
4227         * src/truetype/ttinterp.c (TT_Run_Context): Remove defunct debug
4228         code.
4229         (TT_New_Context): Remove `TT_ExecContext' code related to a global
4230         `TT_Driver' object.
4231
4232         * src/truetype/ttinterp.h: Updated.
4233
4234         * src/truetype/ttgload.c (TT_Hint_Glyph, tt_loader_init): Updated.
4235
4236 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4237
4238         [autofit] Allocate AF_Loader on the stack instead of AF_Module.
4239
4240         Stop sharing a global `AF_Loader'.  Allocate one on the stack during
4241         glyph load.
4242
4243         Right now this results in about 25% slowdown, to be fixed in a
4244         following commit.
4245
4246         With this patch loading glyphs from different faces from different
4247         threads doesn't immediately crash in the autohinting loader code.
4248
4249         Bugs:
4250
4251           https://bugzilla.redhat.com/show_bug.cgi?id=1164941
4252
4253         * src/autofit/afloader.c (af_loader_init): Pass
4254         `AF_Loader' and `FT_Memory' instead of `AF_Module' as arguments.
4255         (af_loader_reset, af_loader_load_glyph): Also pass `loader' as
4256         argument.
4257         (af_loader_done): Use `AF_Loader' instead of `AF_Module' as
4258         argument.
4259
4260         * src/autofit/afmodule.c (af_autofitter_init): Don't call
4261         `af_loader_init'.
4262         (af_autofitter_done): Don't call `af_loader_done'.
4263         (af_autofitter_load_glyph): Use a local `AF_Loader' object.
4264
4265         * src/autofit/afloader.h: Include `afmodule.h'.
4266         Update prototypes.
4267         Move typedef for `AF_Module' to...
4268
4269         * src/autofit/afmodule.h: ... this place.
4270         No longer include `afloader.h'.
4271
4272 2015-01-14  Behdad Esfahbod  <behdad@behdad.org>
4273
4274         * src/type42/t42objs.h (T42_DriverRec): Remove unused member.
4275
4276 2015-01-12  Werner Lemberg  <wl@gnu.org>
4277
4278         Fix Savannah bug #43976.
4279
4280         Assure that FreeType's internal include directories are found before
4281         `CPPFLAGS' (which might be set by the user in the environment), and
4282         `CPPFLAGS' before `CFLAGS'.
4283
4284         * builds/freetype.mk (FT_CFLAGS): Don't add `INCLUDE_FLAGS'.
4285         (FT_COMPILE): Make this a special variable for compiling only the
4286         files handled in `freetype.mk'.
4287         (.c.$O): Removed, unused.
4288
4289         * src/*/rules.mk (*_COMPILE): Fix order of include directories.
4290
4291 2015-01-11  Werner Lemberg  <wl@gnu.org>
4292
4293         [truetype] Prettyfing.
4294
4295         * src/truetype/ttinterp.c (project, dualproj, fast_project,
4296         fast_dualproj): Rename to...
4297         (PROJECT, DUALPROJ, FAST_PROJECT, FAST_DUALPROJ): ... this.
4298
4299 2015-01-11  Werner Lemberg  <wl@gnu.org>
4300
4301         * src/truetype/ttinterp.c (Ins_JROT, Ins_JROF): Simplify.
4302
4303         Based on a patch from Behdad.
4304
4305 2015-01-11  Werner Lemberg  <wl@gnu.org>
4306
4307         * src/truetype/ttinterp.c (Ins_SxVTL): Simplify function call.
4308
4309 2015-01-11  Werner Lemberg  <wl@gnu.org>
4310
4311         * src/truetype/ttinterp.c (Normalize): Remove unused argument.
4312
4313 2015-01-11  Werner Lemberg  <wl@gnu.org>
4314
4315         [truetype] More macro expansions.
4316
4317         * src/truetype/ttinterp.c (FT_UNUSED_EXEC): Remove macro by
4318         expansion.
4319
4320 2015-01-11  Werner Lemberg  <wl@gnu.org>
4321
4322         [truetype] More macro expansions.
4323
4324         * src/truetype/ttinterp.c (INS_ARG): Remove macro by expansion,
4325         adjusting funtion calls where necessary.
4326         (FT_UNUSED_ARG): Removed, no longer needed.
4327
4328 2015-01-10  Werner Lemberg  <wl@gnu.org>
4329
4330         [truetype] More macro expansions.
4331
4332         Based on a patch from Behdad.
4333
4334         * src/truetype/ttinterp.c (DO_*): Expand macros into corresponding
4335         `Ins_*' functions.
4336         (TT_RunIns): Replace `DO_*' macros with `Ins_*' function calls.
4337         (ARRAY_BOUND_ERROR): Remove second definition, which is no longer
4338         needed.
4339         (Ins_SVTCA, Ins_SPVTCA, Ins_SFVTCA): Replaced with...
4340         (Ins_SxyTCA): New function.
4341
4342 2015-01-10  Werner Lemberg  <wl@gnu.org>
4343
4344         [truetype] Remove TT_CONFIG_OPTION_INTERPRETER_SWITCH.
4345
4346         Behdad suggested this code simplification, and nobody objected...
4347
4348         * include/config/ftoption.h, devel/ftoption.h
4349         (TT_CONFIG_OPTION_INTERPRETER_SWITCH): Remove.
4350
4351         * src/truetype/ttinterp.c [TT_CONFIG_OPTION_INTERPRETER_SWITCH]:
4352         Remove related code.
4353         (ARRAY_BOUND_ERROR): Use do-while loop.
4354
4355 2015-01-10  Werner Lemberg  <wl@gnu.org>
4356
4357         [truetype] More macro expansions.
4358
4359         * src/truetype/ttinterp.c, src/truetype/ttinterp.h (EXEC_ARG_,
4360         EXEC_ARG): Remove by replacing with expansion.
4361
4362 2015-01-10  Werner Lemberg  <wl@gnu.org>
4363
4364         [truetype] More macro expansions.
4365
4366         Based on a patch from Behdad.
4367
4368         * src/truetype/ttinterp.c (SKIP_Code, GET_ShortIns, NORMalize,
4369         SET_SuperRound, ROUND_None, INS_Goto_CodeRange, CUR_Func_move,
4370         CUR_Func_move_orig, CUR_Func_round, CUR_Func_cur_ppem,
4371         CUR_Func_read_cvt, CUR_Func_write_cvt, CUR_Func_move_cvt,
4372         CURRENT_Ratio, INS_SxVTL, COMPUTE_Funcs, COMPUTE_Round,
4373         COMPUTE_Point_Displacement, MOVE_Zp2_Point): Remove by replacing
4374         with expansion.
4375
4376         (Cur_Func_project, CUR_Func_dualproj, CUR_fast_project,
4377         CUR_fast_dualproj): Replace with macros `project', `dualproj',
4378         `fast_project', `fast_dualproj'.
4379
4380 2015-01-10  Werner Lemberg  <wl@gnu.org>
4381
4382         [truetype] More macro expansions.
4383
4384         * src/truetype/ttinterp.c (EXEC_OP_, EXEC_OP): Remove by replacing
4385         with expansion.
4386
4387 2015-01-10  Werner Lemberg  <wl@gnu.org>
4388
4389         [truetype] Remove code for static TrueType interpreter.
4390
4391         This is a follow-up patch.
4392
4393         * src/truetype/ttinterp.c, src/truetype/ttinterp.h
4394         [TT_CONFIG_OPTION_STATIC_INTERPRETER,
4395         TT_CONFIG_OPTION_STATIC_RASTER]: Remove macros and related code.
4396
4397 2015-01-10  Werner Lemberg  <wl@gnu.org>
4398
4399         * src/truetype/ttinterp.c (CUR): Remove by replacing with expansion.
4400
4401         This starts a series of patches that simplifies the code of the
4402         bytecode interpreter.
4403
4404
4405 ----------------------------------------------------------------------------
4406
4407 Copyright 2015-2016 by
4408 David Turner, Robert Wilhelm, and Werner Lemberg.
4409
4410 This file is part of the FreeType project, and may only be used, modified,
4411 and distributed under the terms of the FreeType project license,
4412 LICENSE.TXT.  By continuing to use, modify, or distribute this file you
4413 indicate that you have read the license and understand and accept it
4414 fully.
4415
4416
4417 Local Variables:
4418 version-control: never
4419 coding: utf-8
4420 End: