Commit Graph

5802 Commits

Author SHA1 Message Date
Werner Lemberg 0a5315d141 Introduce AF_CONFIG_OPTION_TT_SIZE_METRICS configuration option.
* include/freetype/config/ftoption.h
(AF_CONFIG_OPTION_TT_SIZE_METRICS): New option, commented out by
default.

* src/autofit/afloader.c (af_loader_load_glyph): Use
AF_CONFIG_OPTION_TT_SIZE_METRICS to guard the corresponding code.
2017-04-27 13:02:24 +02:00
Werner Lemberg ab10ffcdd5 * include/freetype/freetype.h (FT_Render_Mode): Fix order.
This retains backwards compatibility.

Noted by Alexei.
2017-04-26 13:41:40 +02:00
Werner Lemberg 5f18d867c0 [truetype] Do linear scaling for FT_LOAD_NO_HINTING (#50470).
* src/truetype/ttobs.h (TT_SizeRec): Add field `hinted_metrics' to
hold hinted metrics.
Make `metrics' a pointer so that `tt_glyph_load' can easily switch
between metrics.

* src/truetype/ttdriver.c (tt_size_request): Updated.
(tt_glyph_load): Use top-level metrics if FT_LOAD_NO_HINTING is
used.

* src/truetype/ttgload.c (TT_Hint_Glyph, TT_Process_Simple_Glyph,
TT_Process_Composite_Component, load_truetype_glyph,
compute_glyph_metrics, TT_Load_Glyph): Updated.

* src/truetype/ttinterp.c (TT_Load_Context): Updated.

* src/truetype/ttobjs.c (tt_size_reset): Updated.

* src/truetype/ttsubpix.c (sph_set_tweaks): Updated.
2017-04-26 11:40:28 +02:00
Werner Lemberg 5aa6716a5e Add new `slight' auto-hinting mode.
This mode uses fractional advance widths and doesn't scale glyphs
horizontally, only applying vertical scaling and hinting.

At the same time, the behaviour of the `light' auto-hinter gets
restored for backwards compatibility: Both vertical and horizontal
scaling is again based on rounded metrics values (this was changed
in a commit from 2017-03-30 as a side effect).  To be more precise,
the behaviour is restored for TrueType fonts only; for other font
formats like Type 1, this is a new feature of the `light' hinting
mode.

* include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT): New macro.
(FT_RENDER_MODE_SLIGHT): New render mode.

* include/freetype/internal/ftobjs.h (FT_Size_InternalRec): Add
`autohint_mode' and `autohint_metrics' fields.

* src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c
(af_latin_hints_init), src/autofit/aflatin2 (af_latin2_hints_init):
Updated.

* src/autofit/afloader.c (af_loader_embolden_glyph_in_slot): Use
`autohint_metrics'.
(af_loader_load_glyph): s/internal/slot_internal/.
Initialize `autohint_metrics' and `autohint_mode' depending on
current auto-hint mode.
Use `autohint_metrics'.
Updated.

* src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Updated.

* src/base/ftobjs.c (FT_Load_Glyph): Updated.
(FT_New_Size): Allocate `internal' object.

* src/pshinter/pshalgo.c (ps_hints_apply): Updated.

* src/smooth/ftsmooth.c (ft_smooth_render): Updated.
2017-04-26 11:39:53 +02:00
Werner Lemberg 69da54cacc Document that some FT_Size_Metrics values are always rounded. 2017-04-26 09:58:28 +02:00
Werner Lemberg ba86636b14 And another CVE for an older FreeType version. 2017-04-26 09:35:39 +02:00
Werner Lemberg 7752c68c50 Document CVE-2017-8105. 2017-04-26 09:16:45 +02:00
Werner Lemberg 7fa5743ae6 freetype.h: Avoid non-ASCII character (#50858). 2017-04-23 13:57:37 +02:00
Werner Lemberg 5412d8869b Introduce `FT_Size_InternalRec' structure.
We are going to extend this later on.

* include/freetype/internal/ftobjs.h (FT_Size_InternalRec): New
structure with a single field `module_data'.

* src/base/ftobjs.c (FT_New_Size): Allocate `internal' field of
`FT_Size' structure.

* src/cff/cffgload.c (cff_builder_init, cff_decoder_prepare): Use
`size->internal->module_data' instead of `size->internal'.

* src/cff/cffobjs.c (cff_size_done): Deallocate `module_data'.
(cff_size_init, cff_size_select, cff_size_request): Use
`size->internal->module_data' instead of `size->internal'.

* src/cif/cidobjs.c (cid_size_done, cid_size_init,
cid_size_request): Use `size->internal->module_data' instead of
`size->internal'.

* src/psaux/psobjs.c (t1_builder_ini): Use
`size->internal->module_data' instead of `size->internal'.

* src/type1/t1objs.c (T1_Size_Done, T1_Size_Init, T1_Size_Request):
Use `size->internal->module_data' instead of `size->internal'.
2017-04-22 12:48:50 +02:00
Alexei Podtelezhnikov eb5e0fb7ee * src/smooth/ftsmooth.h: Remove unused guards and declaration. 2017-04-21 22:53:39 -04:00
Alexei Podtelezhnikov c5d9735d85 Typos. 2017-04-21 22:27:49 -04:00
Alexei Podtelezhnikov 71d289da3b Typos. 2017-04-19 23:50:29 -04:00
Alexei Podtelezhnikov eb0683129b Typos. 2017-04-16 23:41:26 -04:00
Hin-Tak Leung 5efba4c4dc Fix tracing messages.
* src/base/ftobjs.c (FT_Face_GetCharVariantIndex,
FT_Face_GetCharVariantIsDefault, FT_Face_GetVariantsOfChar): Print
correct function name.
2017-04-16 07:23:24 +02:00
Alexei Podtelezhnikov 05e1aa5fc0 Typos. 2017-04-15 23:48:59 -04:00
Werner Lemberg 90ccab3d78 [autofit] Add support for Old Turkic script.
* src/autofit/afblue.dat: Add blue zone data for Old Turkic.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Old Turkic standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Old Turkic data.
2017-04-08 17:58:57 +02:00
Sascha Brawer df2a7cd198 [autofit] Add support for Gothic script.
* src/autofit/afblue.dat: Add blue zone data for Gothic.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Gothic standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Gothic data.
2017-04-08 16:11:44 +02:00
Sascha Brawer 5bf4b1aaf7 [autofit] Add support for Cypriot script.
* src/autofit/afblue.dat: Add blue zone data for Cypriot.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Cypriot standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Cypriot data.
2017-04-08 11:38:52 +02:00
Sascha Brawer d79fc79422 [autofit] Add support for Deseret script.
* src/autofit/afblue.dat: Add blue zone data for Deseret.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Deseret standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Deseret data.
2017-04-08 07:06:24 +02:00
Werner Lemberg 32efd8c008 [autofit] Fix invalid character range description (#50745).
Also reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1034

* src/autofit/afranges.c (af_glag_nonbase_uniranges): Fix typo in
recent commit.
2017-04-07 17:22:59 +02:00
Werner Lemberg 04e00b8a3d [ftfuzzer] Fix clang warnings.
* src/tools/ftfuzzer/ftfuzzer.cc (LLVMFuzzerTestOneInput): Add
casts.
2017-04-07 17:13:38 +02:00
Sascha Brawer 2c256e6dac [autofit] Add support for Lisu script.
* src/autofit/afblue.dat: Add blue zone data for Lisu.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Lisu standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Lisu data.
2017-04-06 17:05:47 +02:00
Sascha Brawer 2b9114765a [autofit] Add support for Osage script.
* src/autofit/afblue.dat: Add blue zone data for Osage.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Osage standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Osage data.
2017-04-06 16:49:39 +02:00
Sascha Brawer 628e2850b2 [autofit] Add support for Glagolitic script.
* src/autofit/afblue.dat: Add blue zone data for Glagolitic.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Glagolitic standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Glagolitic data.
2017-04-06 12:47:27 +02:00
Sascha Brawer 6967eb93f8 [autofit] Add support for Tai Viet script.
* src/autofit/afblue.dat: Add blue zone data for Tai Viet.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Tai Viet standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Tai Viet data.
2017-04-06 11:35:07 +02:00
Sascha Brawer 837f112566 [autofit] Add support for Tifinagh script.
* src/autofit/afblue.dat: Add blue zone data for Tifinagh.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Tifinagh standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Tifinagh data.
2017-04-06 08:44:08 +02:00
Sascha Brawer 134246b72b [autofit] Add support for N'Ko script.
* src/autofit/afblue.dat: Add blue zone data for N'Ko.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add N'Ko standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add N'Ko data.
2017-04-06 07:06:32 +02:00
Sascha Brawer ba9cee479a [autofit] Add support for Adlam script.
* src/autofit/afblue.dat: Add blue zone data for Adlam.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Adlam standard characters.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Adlam data.
2017-04-06 05:50:44 +02:00
Sascha Brawer 8210ee4b69 [autofit] Add support for Ol Chiki script.
* src/autofit/afblue.dat: Add blue zone data for Ol Chiki.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Ol Chiki standard character.

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Ol Chiki data.
2017-04-06 05:39:51 +02:00
Werner Lemberg 093c182058 [truetype] Avoid reexecution of `fpgm' and `prep' in case of error.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=981

* include/freetype/fterrdef.h (FT_Err_DEF_In_Glyf_Bytecode): New
error code.

* src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Prohibit execution
of these two opcodes in `glyf' bytecode.
(TT_RunIns): Don't enforce reexecution of `fpgm' and `prep' bytecode
in case of error since function tables can no longer be modified
(due to the changes in `Ins_FDEF' and `Ins_IDEF').  This change can
enormously speed up handling of broken fonts.
2017-04-03 11:37:33 +02:00
Alexei Podtelezhnikov e7b013044e [autofit] Disable metrics adjustment for `FT_LOAD_TARGET_LCD'.
* src/autofit/aflatin.c (af_latin_hints_init): Updated.
* src/autofit/aflatin2.c (af_latin2_hints_init): Ditto.
2017-04-02 22:01:47 -04:00
Werner Lemberg bb6c037bae * src/truetype/ttgload.c: Include FT_CONFIG_CONFIG_H.
Otherwise FT_UINT_TO_POINTER might not be defined.

Problem reported by Alexei.
2017-04-01 09:49:11 +02:00
Alexei Podtelezhnikov 54b58097ee [autofit] Disable stem adjustment for `FT_LOAD_TARGET_LCD'.
* include/freetype/freetype.h (FT_LOAD_TARGET_LCD): Document it.
* src/autofit/afcjk.c (af_cjk_hints_init): Updated.
* src/autofit/aflatin.c (af_latin_hints_init): Ditto.
* src/autofit/aflatin2.c (af_latin2_hints_init): Ditto.
2017-03-31 22:41:53 -04:00
Werner Lemberg 5a3490e054 * src/cff/cffload.c (cff_font_load): Improve fix from 2017-01-04.
Allow CFFs containing a single font to have an empty font name.

Problem reported by 張俊芝 <418092625@qq.com> in

  http://lists.nongnu.org/archive/html/freetype-devel/2017-03/msg00074.html
2017-03-31 09:35:58 +02:00
Werner Lemberg c8c6763988 * src/cff/cffparse.h (CFF2_DEFAULT_STACK): Set to 513 also.
Requested by Dave Arnold.
2017-03-30 21:07:17 +02:00
Werner Lemberg da38be831d [truetype] Fix HVAR and VVAR handling (#50678).
* src/truetype/ttgxvar.c (tt_hvadvance_adjust): Handle
glyph indices larger than `mapCount' as described in the
specification.
2017-03-30 13:24:03 +02:00
Werner Lemberg bcc74f4daf [truetype] Allow linear scaling for unhinted rendering (#50470).
* src/truetype/ttdriver.c (tt_size_request): Revert change from
2011-07-16; the intended metrics fix seems now to be implemented in
a different way, making the patch unnecessary.  Note that this
change was usually patched out by all major GNU/Linux distributions
due to heavy side effects.

* src/truetype/ttgload.c (compute_glyph_metrics, TT_Load_Glyph):
Refer to the metrics of the `TT_Size' object.
2017-03-30 13:14:43 +02:00
Werner Lemberg 1ede3674cb [truetype] Fix thinko related to PS name of default named instance.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): `strid' and `psid' are
name ID values, not indices into the array of name entries.
2017-03-30 00:26:31 +02:00
Werner Lemberg 4c1b5dc152 s/index/idx/ where appropriate. 2017-03-27 21:00:17 +02:00
Werner Lemberg 208e712de0 [cid, truetype] Don't use `index' as a variable name.
At least on FreeBSD there is a global declaration of `index' in file
`/usr/include/strings.h'.

* src/cff/cf2intrp.c, src/truetype/ttgload.c: s/index/idx/ where
appropriate.
2017-03-27 20:56:23 +02:00
Wojciech Mamrak 565f5a7d19 [sfnt] Minor improvement for handling kern tables.
* src/sfnt/ttkern.c (tt_face_load_kern): Don't check for
cross-stream kerning tables since we reject format 2 tables later
on anyways.
Modify code for limit test...
(tt_face_get_kerning): ... to avoid a limit test here.
2017-03-27 09:19:14 +02:00
Werner Lemberg c22a9aa245 [pcf] Fix compiler warnings.
Reported by Alexander Hedges <ahedges@student.ethz.ch>.

* src/pcf/pcfdrivr.c (pcf_property_set, pcf_property_get): Tag
`property_name' with `FT_UNUSED' where necessary.
2017-03-27 07:57:24 +02:00
Werner Lemberg 3774fc08b5 * src/psaux/psobjs.c (t1_builder_close_contour): Add safety guard.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=941
2017-03-26 08:32:09 +02:00
Werner Lemberg f958c48ee4 [psaux] Better protect `flex' handling.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=935

* src/psaux/t1decode.c (t1_decoder_parse_charstrings)
<callothersubr>: Since there is not a single flex operator but a
series of subroutine calls, malformed fonts can call arbitrary other
operators after the start of a flex, possibly adding points.  For
this reason we have to check the available number of points before
inserting a point.
2017-03-24 09:15:10 +01:00
Werner Lemberg 913f436d12 [sfnt] Fix check for default named instance.
* src/sfnt/sfobjs.c (sfnt_init_face): A `fixed' number needs four
bytes, not two...
2017-03-23 18:37:06 +01:00
Werner Lemberg 67ff7664e4 Make MM fonts work (again).
* src/base/ftmm.c (FT_Set_Var_Design_Coordinates,
FT_Set_MM_Blend_Coordinates, FT_Set_Var_Blend_Coordinates): Ignore
return value of `ft_face_get_mvar_service'; instead, check whether a
service is actually returned.
2017-03-23 12:41:30 +01:00
Werner Lemberg 683e3ad936 [truetype] Some variable renamings.
Too much local variables holding different structures were called
`metrics'.

* src/truetype/ttdriver.c (tt_size_select): s/metrics/size_metrics/.

* src/truetype/ttgload.c (tt_get_metrics_incr_overrids,
compute_glyph_metrics): s/metrics/incr_metrics/.
(load_sbit_image): s/metrics/sbit_metrics/.

* src/truetype/ttobjs.c (tt_size_run_fpgm): s/metrics/size_metrics/.
(tt_size_init_bytecode): s/metrics/tt_metrics/.
(tt_size_reset): s/metrics/size_metrics/.
2017-03-21 19:49:11 +01:00
Werner Lemberg 6342da9a8d [sfnt] Don't add instances to non-variation fonts.
* src/sfnt/sfobjs.c (sfnt_init_face): Fix it.
2017-03-20 05:36:41 +01:00
Werner Lemberg dd64a6227c * src/cff/cffgload.c (cff_builder_init): Add safety guard (#50578). 2017-03-20 05:34:02 +01:00
Werner Lemberg 7aeee3c50f Introduce FT_UINT_TO_POINTER macro (#50560).
We have to make a separate case for Windows 64's LLP64 data model.

* builds/unix/ftconfig.in, builds/vms/ftconfig.h,
include/freetype/config/ftconfig.h (FT_UINT_TO_POINTER): New macro.

* src/truetype/ttgload.c (load_truetype_glyph): Use it.
2017-03-18 17:30:42 +01:00