Commit Graph

5554 Commits

Author SHA1 Message Date
Werner Lemberg d28eac249a [type42] Support `CharStrings' entry format as created by LilyPond.
* src/type42/t42parse.c (t42_parse_charstrings): Handle entries
having the format

  (foo) cvn 12345 def
2016-05-30 00:23:59 +02:00
Werner Lemberg 46d36904b0 * src/autofit/afranges.c: Remove `UL' postfix from hex numbers.
Suggested by Alexei.  `UL' is only needed for 16bit compilers, but
it seems noone is using this anymore (and we no longer test whether
FreeType compiles in such an environment).  Otherwise, it is easy to
add the postfix to the `AF_UNICODE_RANGE' macro.
2016-05-28 19:38:43 +02:00
Alexei Podtelezhnikov e9f950938f [smooth] Shrink bisection stack.
The convergence of Bézier flatteners is fast with the deviation
from straight line being assymptotically cut 4-fold on each bisection.
This justifies smaller bisection stack size.

* src/smooth/ftgrays.c (gray_TWorker): Remove common `bez_stack'.
(gray_render_conic): Create and use conic `bez_stack'. Move back the
band analysis from...
(gray_conic_to): ... here.
(gray_render_cubic): Create and use cubic `bez_stack'. Move back the
band analysis from...
(gray_cubic_to): ... here.
(gray_move_to): Updated.
2016-05-26 23:46:38 -04:00
Werner Lemberg e97918c57b [autofit] Fixes for Armenian and Gujarati ranges.
* src/autofit/afranges.c (af_armn_uniranges): Corrected.
(af_guru_nonbase_uniranges): Make U+0A3E a base character.
2016-05-25 07:13:29 +02:00
Werner Lemberg 1dcda70ef9 [autofit] Ordering, whitespace. 2016-05-24 23:10:44 +02:00
Werner Lemberg a74f40f9e7 [autofit] Add support for Armenian script.
* src/autofit/afblue.dat: Add blue zone data for Armenian.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

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

* src/autofit/afranges.c: Add Armenian data.

* src/autofit/afstyles.h: Add Armenian data.
2016-05-24 18:27:18 +02:00
Werner Lemberg 771d3c8ae2 * builds/unix/unix-cc.in (LINK_LIBRARY): Use `-export-symbols'.
This was commented about 10 years ago – I think the reason then to
disable libtool's `-export-symbols' option was to give some badly
programmed applications access to internal FreeType functions.

I believe that we should no longer take care of such programs; the
number of symbols exported should be rather restricted as much as
possible.
2016-05-23 06:49:38 +02:00
Werner Lemberg 9d179e3d70 [autofit] Add blue-zone support for Gurmukhi script.
This essentially moves the Gurmukhi script from the `Indic' hinter to
the `Latin' hinter.

* src/autofit/afblue.dat: Add blue zone data for Gurmukhi.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Gurmukhi standard characters and move
data out of AF_CONFIG_OPTION_INDIC block.

* src/autofit/afranges.c: Move Gurmukhi data out of
AF_CONFIG_OPTION_INDIC block.

* src/autofit/afstyles.h: Update Gurmukhi data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2016-05-22 08:38:41 +02:00
Werner Lemberg d583561e1d Minor clang++ fixes.
* src/base/ftobjs.c (FT_Add_Module), src/psaux/psobjs.c
(ps_parser_load_field), src/type1/t1load.c (parse_subrs): Add
initializer.

* src/cache/ftccache.h (FTC_CACHE_TRYLOOP_END): Avoid implicit
conversion from NULL to boolean.
2016-05-21 11:20:42 +02:00
Werner Lemberg 6e80a098e7 Work around a bug of the C 8.0.0.1 compiler on AIX 5.3 (#47955).
* include/freetype/internal/ftmemory.h (cplusplus_typeof): Use
braces for `extern "C++"'.
2016-05-21 10:58:40 +02:00
Alexei Podtelezhnikov 2a4c823f89 Parentheses. 2016-05-20 22:04:01 -04:00
Nikolaus Waxweiler 01de37e54f [truetype] Make TT_LOADER_SET_PP support subpixel hinting [3/3].
* src/truetype/ttgload.c (TT_LOADER_SET_PP): Replace macro with...
(tt_loader_set_pp): ... this new function.
Update all callers.
2016-05-18 07:07:44 +02:00
Nikolaus Waxweiler ed1d8983f3 [truetype] New implementation of v38 bytecode interpreter [2/3].
This patch actually modifies the bytecode interpreter.

See added comments in `ttinterp.h' for more information on this and
the following commit in the series.

* src/truetype/ttinterp.c (SUBPIXEL_HINTING): Replaced by...
(NO_SUBPIXEL_HINTING, SUBPIXEL_HINTING_INFINALITY,
SUBPIXEL_HINTING_MINIMAL): ...new macros.
(Direct_Move, Direct_Move_X, Direct_Move_Y): Handle backwards
compatibility.
Updated.
(Ins_RS, Ins_FDEF, Ins_ENDF, Ins_CALL, Ins_LOOPCALL, Ins_MD):
Updated.
(Ins_INSTCTRL): Handle native ClearType mode flag.
Updated.
(Ins_FLIPPT, Ins_FLIPRGON, Ins_FLIPRGOFF): Handle backwards
compatibility.
(Move_Zp2_Point): Ditto.
(Ins_SHP): Updated.
(Ins_SHPIX): Handle backwards compatibility.
Updated.
(Ins_MSIRP, Ins_MDAP, Ins_MIAP, Ins_MDRP, Ins_MIRP): Updated.
(Ins_ALIGNRP): Updated.
(Ins_IUP, Ins_DELTAP): Handle backwards compatibility.
Updated.
(Ins_GETINFO): Handle v38 flags.
Updated.
(TT_RunIns): Handle backwards compatibility mode.
Updated.
2016-05-18 06:58:44 +02:00
Nikolaus Waxweiler 596157365a [truetype] New implementation of v38 bytecode interpreter [1/3].
This patch prepares data structures and the like.

See added comments in `ttinterp.h' for more information on this and
the following commits in the series.

* devel/ftoption.h, include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Assign values to differentiate
between subpixel versions.
(TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY,
TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL): New macros.

* include/freetype/ftttdrv.h (TT_INTERPRETER_VERSION_40): New macro.

* include/freetype/internal/tttypes.h (TT_FaceRec): Updated.

* src/truetype/ttinterp.h (TT_ExecContextRec): Define new fields
`subpixel_hinting_lean', `vertical_lcd_lean',
`backwards_compatibility', `iupx_called', iupy_called', and
`grayscale_cleartype' for new hinting mode.

* src/truetype/ttdriver.c (tt_property_set): Handle v38 and v40
interpreters conditionally.

* src/truetype/ttgload.c (TT_Hint_Glyph): Save phantom points unless
in v38 backwards compatibility mode.
Updated.
(compute_glyph_metrics): Add v38 backwards compatibility mode
constraint for adjusting advance widths.
Updated.
(tt_loader_init): Handle new flags `subpixel_hinting_lean',
`grayscale_cleartype', and `vertical_lcd_lean'.
Updated.
(tt_get_metrics, TT_Process_Simple_Glyph, TT_LOADER_SET_PP):
Updated.

* src/truetype/ttobjs.c (tt_driver_init): Conditionally set
default interpreter version number.

* src/truetype/ttsubpix.c, src/truetype/ttsubpix.h: Updated.
2016-05-18 06:57:59 +02:00
Werner Lemberg 119e8e41ef [cff] Fix matrix scaling (#47848).
* include/freetype/config/ftstdlib.h (FT_LONG_MIN): New macro.

* src/cff/cffparse.c (cff_parse_font_matrix): Use largest scaling
value of all matrix coefficients to scale matrix.

* src/cff/cffobjs.c (cff_face_init): Use `matrix->yx' member for
matrix normalization if `matrix->yy' is zero.
2016-05-17 19:54:09 +02:00
Werner Lemberg 533887a947 Whitespace, formatting. 2016-05-16 20:38:41 +02:00
Werner Lemberg bebac3cf5b [base] Reject invalid sfnt Mac resource (#47891).
* src/base/ftobjs.c (open_face_PS_from_sfnt_stream): Check validity
of `CID ' and `TYPE1' table offset and length.
2016-05-16 20:16:35 +02:00
Werner Lemberg 09f0e0fcbe [cid] Fix scanning for `StartData' and `/sfnts' (#47892).
* src/cid/cidparse.c (STARTDATA, STARTDATA_LEN, SFNTS, SFNTS_LEN):
New macros.
(cid_parser_new): Fix and document algorithm.
2016-05-16 19:44:19 +02:00
suzuki toshiya a7d8bdbcfe [truetype] Improve the recursive reference detector.
The previous fix for #46372 misunderstood a composite glyph referring
same component twice as a recursive reference.  See the discussion

http://lists.gnu.org/archive/html/freetype/2016-05/msg00000.html

Thanks to Khaled Hosny for finding this issue.

* src/truetype/ttgload.c (ft_list_get_node_at): A function to get
the i-th node from FT_List.  (load_truetype_glyph): In the traversal
scan of the reference tree in the composite glyph, we clear the
nodes filled by previous sibling chain.
2016-05-16 21:57:26 +09:00
Alexei Podtelezhnikov cdc8f4d933 Duplicates. 2016-05-07 23:17:57 -04:00
Alexei Podtelezhnikov 500bcbdded Duplicates. 2016-05-07 22:28:43 -04:00
Werner Lemberg 7ae9b9996b [cache] Allow value 0 for face ID.
We never dereference `face_id', and some implementations might use a
running number instead of a pointer.  Additionally, disallowing
value zero was undocumented.

* src/cache/ftccmap.c (FTC_CMapCache_Lookup), src/cache/ftcmanag.c
(FTC_Manager_LookupFace, FTC_Manager_RemoveFaceID): Remove test for
`face_id'.
2016-05-07 16:24:03 +02:00
Alexei Podtelezhnikov 6e88087d69 [smooth] More efficient accounting of conic splits and draws.
A single decrement counter of segments to draw, instead of an array,
contains all the information necessary to decide when to split and
when to draw a conic segment. The number of splits before each draw is
equal to the number of trailing zeros in the counter.

* src/smooth/ftgrays.c (gray_TWorker): Remove `lev_stack'.
(gray_render_conic): Updated to use decrement counter of segments.
2016-05-05 23:41:03 -04:00
Werner Lemberg 0b3cb8a8af [cff, truetype] Fix logic for `FT_Property_Set'.
Otherwise some properties could be set to arbitrary values, which is
harmless, but querying could give wrong positive results.

* src/cff/cffdrivr.c (cff_property_set) [hinting-engine],
* src/truetype/ttdriver.c (tt_property_set) [interpreter-version]:
Only allow defined values.
2016-05-05 12:28:48 +02:00
Werner Lemberg 22167629d1 [autofit] Add blue-zone support for Gujarati script.
This essentially moves the Gujarati script from the `Indic' hinter to
the `Latin' hinter.

* src/autofit/afblue.dat: Add blue zone data for Gujarati.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afscript.h: Add Gujarati standard characters and move
data out of AF_CONFIG_OPTION_INDIC block.

* src/autofit/afranges.c: Move Gujarati data out of
AF_CONFIG_OPTION_INDIC block.

* src/autofit/afstyles.h: Update Gujarati data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2016-04-25 21:18:24 +02:00
Werner Lemberg d9fb2175c4 Minor.
* include/freetype/freetype.h (FT_HAS_*, FT_IS_*): Protect macro
argument with parentheses.
2016-04-24 15:27:32 +02:00
Werner Lemberg 432e00db2e [truetype] Fix deallocation in case of error (#47726).
* src/truetype/ttgload.c (load_truetype_glyph): Initialize fields in
`outline' that are going to be deallocated in case of error.
2016-04-24 08:14:07 +02:00
Werner Lemberg 80afef8bd6 [autofit] Improve Georgian blue zone characters.
Suggested by Akaki Razmadze <razmadzekoko@gmail.com>.

* src/autofit/afblue.dat (AF_BLUE_STRING_GEORGIAN_MKHEDRULI_BOTTOM):
Updated.

* src/autofit/afblue.c: Regenerated.
2016-04-23 21:34:15 +02:00
David Capello 9224f05393 [cmake] Honor SKIP_INSTALL_* settings (as used in zlib).
As FreeType depends on zlib, if we don't install zlib (e.g., because
we defined SKIP_INSTALL_ALL), FreeType cannot be installed, too
(cmake triggers an error saying that FreeType cannot be installed
because zlib target isn't in the export set).

* CMakeLists.txt: Honor `SKIP_INSTALL_HEADERS',
`SKIP_INSTALL_LIBRARIES', and `SKIP_INSTALL_ALL' settings.
2016-04-16 10:24:24 +02:00
Behdad Esfahbod 99eff67824 [truetype] Another fix for non-intermediate GX tuples.
* src/truetype/ttgxvar.c (ft_var_apply_tuple): Add some missing
cases.
2016-04-16 07:32:23 +02:00
Alexei Podtelezhnikov 213f0ca3e3 Remove forgotten macro.
* include/freetype/internal/internal.h
[FT_INTERNAL_POSTSCRIPT_GLOBALS_H]: Remove.
2016-04-13 00:19:54 -04:00
Alexei Podtelezhnikov bbcb97793e Typos. 2016-04-13 00:11:52 -04:00
Alexei Podtelezhnikov f46b282d4d Typos. 2016-04-11 23:22:57 -04:00
Werner Lemberg c8c7ad7910 [autofit] Add support for Georgian scripts.
Georgian is problematic, since `uppercase' forms of Mkhedruli
(called Mtavruli) are not yet defined in Unicode, which means that
proper blue zones can't be defined.  However, there is already a
proposal submitted to Unicode; see

  http://www.unicode.org/L2/L2016/16034-n4707-georgian.pdf

Additionally, due to historical reasons, Unicode treats Khutsuri as
the same script as Mkhedruli, and so does OpenType.  However, since
the two scripts have completely different shapes it can happen that
blue zones differ considerably.  The tag `geok' used here (derived
from ISO 15924) to differentiate the two scripts is not an OpenType
tag in use.  If we now have a font that contains both glyphs for
Mkhedruli and Khutsuri, and it uses OpenType features for both also,
HarfBuzz unavoidably treats all glyphs as `geor'.  As a consequence,
blue zones for `geok' are not used for glyphs involved in the
OpenType features.

An issue not yet resolved is which OpenType feature should be used
to access Mtavruli glyph shapes; right now, FreeType doesn't set up
support for them, but it is easy to add them later on as soon as
more information is available.

* src/autofit/afblue.dat: Add blue zone data for Georgian.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

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

* src/autofit/afranges.c: Add Georgian data.

* src/autofit/afstyles.h: Add Georgian data.
2016-04-09 08:24:00 +02:00
Alexei Podtelezhnikov e85422606d Typos. 2016-04-08 23:21:34 -04:00
Alexei Podtelezhnikov 34207080c6 Typos. 2016-04-08 00:38:49 -04:00
Alexei Podtelezhnikov c6d99a42b9 Typos. 2016-04-08 00:05:50 -04:00
Alexei Podtelezhnikov bbb60965f9 Typos. 2016-04-07 01:29:44 -04:00
Werner Lemberg bf8f100d2c [autofit] Provide dummy blue zone for pseudo script `none'.
Even if the dummy hinter is used as the handler for `none' (which
doesn't use blue zones), it is more consistent than the old value
(which was 0), pointing to Arabic...

* src/autofit/afblue.dat: Add `AF_BLUE_STRINGSET_NONE'.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

* src/autofit/afstyles.h (none_dflt): Use AF_BLUE_STRINGSET_NONE.
2016-04-05 11:43:58 +02:00
Werner Lemberg fb550bf466 * src/pfr/pfrload.c (pfr_aux_name_load): Thinko (#47567). 2016-03-30 18:55:27 +02:00
Werner Lemberg aff6ebb9a6 * src/pfr/pfrload.c (pfr_log_font_count): Better font size estimate. 2016-03-30 09:11:02 +02:00
Werner Lemberg ccd771cdf6 * src/pfr/pfrload.c (pfr_aux_name_load): Fix memory leak (#47567). 2016-03-30 08:44:46 +02:00
Werner Lemberg ff82747e6d * src/base/ftadvance.c (FT_Get_Advances): Fix invalid left shift. 2016-03-29 09:19:22 +02:00
Werner Lemberg 351fc4b4a4 [pfr] Fix binary search (#47514).
* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Handle border
conditions correctly.
2016-03-29 09:13:13 +02:00
Werner Lemberg 2a03e5d9fb [pfr] Minor.
* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Replace `left',
`right', and `middle' with `min', `max', and `mid' as used in other
FreeType binary search code.
(pfr_load_bitmap_metrics): Fix invalid left shift.
2016-03-29 08:56:03 +02:00
Werner Lemberg 31dc8f98f6 * src/pfr/pfrtypes.h: Replace all enums with macros.
We need `~FOO' to unset bits, and only with unsigned values (which
`enum' isn't normally) this works cleanly.
2016-03-29 08:37:07 +02:00
Werner Lemberg f73a993750 [autofit] Mark `aflatin2.[ch]' as not compilable. 2016-03-26 22:42:13 +01:00
Werner Lemberg b069a590a9 [pfr] Robustify bitmap strike handling (#47514).
We did a binary search for a charcode without ensuring that the
searched data is ordered.  Validating the order is now done lazily,
this is, the first access to a bitmap glyph triggers the order check
in the corresponding bitmap strike.

* src/pfr/pfrtypes.h (PFR_BitmapFlags): New values
`PFR_BITMAP_VALID_CHARCODES' and `PFR_BITMAP_CHARCODES_VALIDATED'.

* src/pfr/pfrsbit.c (pfr_lookup_bitmap_data): Make `flags' argument
a pointer.  Handle new PFR_BITMAP_XXX flags.
(pfr_slot_load_bitmap): Updated.
2016-03-26 22:42:13 +01:00
Werner Lemberg 0003cb9162 [pfr] Fix handling of compound glyphs.
Extra items are indicated with different bit positions.

* src/pfr/pfrtypes.h (PFR_GlyphFlags): Replace
`PFR_GLYPH_EXTRA_ITEMS' with `PFR_GLYPH_SIMPLE_EXTRA_ITEMS' and
`PFR_GLYPH_COMPOUND_EXTRA_ITEMS'.

* src/pfr/pfrgload.c (pfr_glyph_load_simple,
pfr_glyph_load_compound): Use them.
2016-03-26 22:42:13 +01:00
Werner Lemberg 2aa6956565 [pfr] Minor.
* src/pfr/pfrsbit.c, srf/pfr/pfrobjs.c: Use flag names instead of
bare numbers.
2016-03-26 22:42:13 +01:00