Commit Graph

3868 Commits

Author SHA1 Message Date
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 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 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 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 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
Werner Lemberg 59828f72a2 [pfr] Various clang sanitizer fixes.
* src/pfr/pfrsbit.c (pfr_load_bitmap_metrics): Correctly handle
signed nibbles.
(pfr_slot_load_bitmap): Correctly exit frame in case of error.
Fix invalid left shifts.
2016-03-26 22:42:13 +01:00
Werner Lemberg 6e89ad4141 Rename `VERSION.DLL' (#47472).
* docs/VERSION.DLL: Renamed to...
* docs/VERSIONS.TXT: ...this.
2016-03-23 07:40:12 +01:00
Werner Lemberg 31f2dc1946 [raster, smooth] Directly test outline size (#47500).
This improves stand-alone compilation.

* src/base/ftoutln.c (FT_Outline_Render): Move cbox size test to...

* src/raster/ftraster.c (ft_black_render), src/smooth/ftgrays.c
(gray_raster_render): ...these functions.
2016-03-23 07:31:59 +01:00
Werner Lemberg e9181aba2c [raster, smooth] Fix some clang sanitizer runtime issues.
* src/raster/ftraster.c (ft_black_reset, ft_black_set_mode,
ft_black_render): Harmonize signatures with `ftimage.h'.

* src/smooth/ftgrays.c (gray_raster_render, gray_raster_reset):
Ditto.
2016-03-23 06:58:20 +01:00
Werner Lemberg b663307320 * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Minor.
This fixes an AddressSanitizer issue:

  ttgload.c:430:7: runtime error: null pointer passed as argument 1,
                   which is declared to never be null
2016-03-22 08:26:55 +01:00
Werner Lemberg 614a8f17c7 * src/autofit/afhints.c (af_glyph_hints_reload): Thinko.
This fixes the previous commit to this file.
2016-03-21 19:39:14 +01:00
Alexei Podtelezhnikov 3beccbdf39 [smooth] Partly revert recent changes.
* src/smooth/ftgrays.c (gray_conic_to, gray_cubic_to): Rework
conditions to fix rendering issues.
2016-03-21 00:07:47 -04:00
Werner Lemberg 709486db7f [autofit] Show `near' points in tracing.
* src/autofit/afhints.h (AF_FLAG_NEAR): New macro.

* src/autofit/afhints.c (af_glyph_hints_dump_points): Implement it.
(af_glyph_hints_reload): Handle AF_FLAG_NEAR.
2016-03-20 22:20:32 +01:00
Alexei Podtelezhnikov 8e8bb126d1 [smooth] Minor refactoring and microoptimizations.
* src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move
band clipping from here.
(gray_conic_to, gray_cubic_to): ... to here.
(gray_rander_line, gray_render_scanline): Initialize variables closer
to their use.
2016-03-18 23:21:59 -04:00
Alexei Podtelezhnikov 84b2c63374 [smooth] Minor refactoring.
* src/smooth/ftgrays.c (gray_render_conic, gray_render_cubic): Move
upscaling from here...
(gray_conic_to, gray_cubic_to):... to here.
2016-03-17 00:53:09 -04:00
Werner Lemberg da86b73f03 * src/autofit/aflatin.c (af_latin_compute_stem_width): Optimize. 2016-03-15 07:55:05 +01:00
Alexei Podtelezhnikov 1865575a71 [smooth] Temporarily revert 6eb6158dd7 (#47114).
* src/smooth/ftgrays.c (gray_render_line): Old implementation.
2016-03-14 22:39:22 -04:00
Werner Lemberg ee6b4115d2 [ftfuzzer] Improve coverage of rasterfuzzer.
* src/tools/ftfuzzer/rasterfuzzer.cc (LLVMFuzzerTestOneInput): Use
input data for `tags' array also.
Trim input data to get more positive hits.
2016-03-12 23:48:13 +01:00
Werner Lemberg 10265db114 Fix CMake issues for iOS (patch #8941).
* CMakeLists.txt (CMAKE_TOOLCHAIN_FILE): Fix directory.
* builds/cmake/iOS.cmake: No longer enforce gcc.
2016-03-11 06:50:23 +01:00
Behdad Esfahbod 74c0a72d52 [truetype] Fix handling of non-intermediate GX tuples.
We probably did not notice this as all fonts we tested had only
tuple_coords[i] be +1 or -1 for non-intermediate tuples.

* src/truetype/ttgxvar.c (ft_var_apply_tuple): Implement it.
2016-03-09 20:35:27 +01:00
Alexei Podtelezhnikov 495de6cc72 [base] Refuse to render enormous outlines (#47114).
The goal is to avoid integer overflows in the rendering algorithms.
The limit is chosen arbitrarily at some 2^18 pixels, which should be
enough for modern devices including printers.

* src/base/ftoutln.c (FT_Outline_Render): Check CBox and reject
enormous outlines.
2016-03-06 23:54:34 -05:00
Alexei Podtelezhnikov d0b0e31ed7 [smooth] Replace left shifts with multiplications (#47114).
* src/smooth/ftgrays.c (SUBPIXELS, UPSCALE, DOWNSCALE): Do it.
2016-03-06 23:01:50 -05:00
Werner Lemberg caa48b0db1 [autofit] Avoid excessive stem length rounding (#25392).
* src/autofit/aflatin.c (af_latin_compute_stem_width): Add argument
to pass difference between hinted and unhinted position of base
point; use this to adjust the stem width depending on the PPEM so
that it doesn't become too large under certain circumstances.
Update all callers using value 0 for this argument except...
(af_latin_align_linked_edge): Pass position delta of base point to
`af_latin_compute_stem_width'.
2016-03-05 19:47:07 +01:00
J Raynor 1fd2bc8c37 Make FreeType compile on AIX out of the box.
* builds/unix/configure.raw (XX_ANSIFLAGS): Don't use `-ansi' on
AIX.
2016-03-05 16:38:35 +01:00
Werner Lemberg a8b956227b [ftfuzzer] Add unit for testing smooth and black rasterizers.
* src/tools/ftfuzzer/rasterfuzzer.cc: New file.
2016-03-01 09:37:12 +01:00
Werner Lemberg 3eb6f66a37 [autofit] Fix reallocation error introduced in 2016-02-27 (#47310).
* src/autofit/aflatin.c (af_latin_hints_compute_segments): Reassign
`prev_segment' after reallocation.
2016-03-01 07:10:30 +01:00
Werner Lemberg 015c6e08a1 Fix clang warnings.
* src/autofit/aflatin.c (af_latin_hints_compute_segments): Use
FT_UShort for `min_flags' and `max_flags'.
Initialize `prev_*' variables.

* src/cff/cffobjs.c (cff_face_init) [FT_DEBUG_LEVEL_TRACE]: Fix
types of local variables.

* src/smooth/ftgrays.c (gray_dump_cells) [FT_DEBUG_LEVEL_TRACE]:
Update `printf' format string.

* src/tools/ftfuzzer/ftfuzzer.cc (setIntermediateAxis): Add cast.
(LLVMFuzzerTestOneInput): Fix loop type.
2016-03-01 06:45:52 +01:00
Werner Lemberg 5c7646d226 [autofit] Add blue-zone support for Sinhala script.
This essentially moves the Sinhala script from the `Indic' hinter to
the `Latin' hinter.

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

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

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

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

* src/autofit/afstyles.h: Update Sinhala data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2016-02-29 09:12:35 +01:00
Werner Lemberg f216947813 [autofit] Properly handle spikes pointing to the x-axis.
An example that gets better rendered is glyph `uusignTaml' (glyph
index 2286) in font `FreeSerif.ttf' (Version 0412.2263) at 22ppem.

* src/autofit/aflatin.c (af_latin_hints_compute_segments): Properly
handle segments where the last point of the first segment is
identical to the first point in the second one.  This can happen for
malformed fonts or spikes.  We either merge the new segment with the
previous one (both segments point into the same direction), or we
discard the shorter segment if they point into different directions.
2016-02-28 22:48:34 +01:00
Werner Lemberg ce48664579 [autofit] Minor code clean-up.
* src/autofit/aflatin.c (af_latin_hints_compute_segments): Change
some local variable names to better differentiate between values
along a segment and values orthogonal to it.
2016-02-27 15:01:49 +01:00
Werner Lemberg ebfd7ce52f [autofit] Improve BOUND action.
In complex glyph shapes, the original logic was too simple to cater
for situations that would actually need something similar to PS Hint
masks.  This fix should alleviate the worst cases.

* src/autofit/aflatin.c (af_latin_hint_edges): Don't allow
complete disappearance of stems.
2016-02-26 08:10:41 +01:00
Werner Lemberg 44324b3746 [autofit] Add blue-zone support for Tamil script.
This essentially moves the Tamil script from the `Indic' hinter to
the `Latin' hinter.

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

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

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

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

* src/autofit/afstyles.h: Update Tamil data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2016-02-25 06:58:47 +01:00
Werner Lemberg a5952d3049 [autofit] Add blue-zone support for Malayalam script.
This essentially moves the Malayalam script from the `Indic' hinter
to the `Latin' hinter.

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

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

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

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

* src/autofit/afstyles.h: Update Malayalam data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2016-02-18 12:56:38 +01:00
Alexei Podtelezhnikov 08e89b734c [smooth] Fix integer overflow (#47114).
* src/smooth/ftgrays.c (TArea): Make it unconditionally `long'.
2016-02-16 22:32:13 -05:00
Werner Lemberg 3a5e507838 * src/cff/cffparse.c (cff_parse_multiple_master): Improve tracing. 2016-02-15 22:21:01 +01:00
Werner Lemberg 2873010d15 [cff] Handle T2 operator only with old CFF engine (#47157).
* src/cff/cffparse.c (cff_parser_run) <opcode 31>: Enclose with
2016-02-15 20:53:22 +01:00
Werner Lemberg 8ed9eaf1cc [cff] Partially handle `load' and `store' ops in old CFF engine.
Now all glyphs of MM CFFs like `ITCGaramondMM-It.otf' can be
displayed.

* src/cff/cffgload.c (cff_decoder_parse_charstrings) <cff_op_store,
cff_op_load>: Partially implement it.

* src/cff/cffparse.c (cff_parser_init): Add new parameter to pass
the number of Multiple Master axes.
Update all callers.
(cff_parse_multiple_master): Get number of axes.
(cff_parser_run) <opcode 31>: Updated.
* src/cff/cffparse.h: Updated.
(CFF_ParserRec): Add `num_axes' field.

* src/cff/cffload.c: Updated.

* src/cff/cfftypes.h (CFF_FontRecDictRec): Add `num_axes' field.
2016-02-15 20:41:58 +01:00
Werner Lemberg 658f530ef5 [cff] Correctly trace SIDs that contain NULL bytes.
We need this to properly trace Multiple Master CFFs, which contain
two SIDs that are charstrings.

This commit makes FreeType also show the last SID, omitted
previously due to a bug.

* src/cff/cfftypes.h (CFF_FontRec): Add `string_pool_size' field.

* src/cff/cffload.c (cff_index_get_pointers): Add argument to return
the pool size.
Update all callers.

* src/cff/cffobjs.c (cff_face_init) [FT_DEBUG_LEVEL_TRACE]: Directly
access `cff->strings' to display the non-default strings.
2016-02-15 14:28:28 +01:00
Werner Lemberg e411d38e71 * src/base/fthash.c: Include FT_INTERNAL_MEMORY_H. 2016-02-14 20:48:59 +01:00
Werner Lemberg dc5b2e828c * src/cff/cffparse.c: Include `cffgload.h'.
Problem reported by Colin Walters <walters@verbum.org>.
2016-02-14 20:47:28 +01:00
Werner Lemberg 813aca51d2 [cff] Make old CFF engine show MM CFFs (without variations).
The new code only displays the first master in the font.

* src/cff/cffgload.c (cff_decode_parse_charstrings): Add new
parameter to allow function calls from dictionaries also.
<cff_op_blend>: Partially implement it.
Update all callers.
* src/cff/cffgload.h: Updated.

* src/cff/cffparse.c (cff_parser_init): Add new parameter to pass the
number of Multiple Master designs.
Update all callers.
(cff_parse_multiple_master): New function to rudimentarily parse
operator.
(cff_parser_run): Handle `T2' operator.
* src/cff/cffparse.h: Updated.
(CFF_ParserRec): Add `num_designs' field.

* src/cff/cffload.c: Updated.

* src/cff/cfftoken.h: Handle `MultipleMaster' operator.

* src/cff/cfftypes.h (CFF_FontRecDictRec): Add `num_designs' field.

* src/sfnt/sfobjs.c (sfnt_init_face): Don't handle `fvar' table for
MM CFFs.
2016-02-14 16:03:15 +01:00
Werner Lemberg 4b3ea5ca8f [docmaker] Don't emit trailing newlines.
* src/tools/docmaker/tohtml.py (HtmlFormatter::make_html_code):
Use `rstrip'.
2016-02-09 08:08:17 +01:00
Werner Lemberg 44accb9e2e Version 2.6.3 released. 2016-02-08 19:51:40 +01:00
Werner Lemberg 78371bd641 Fix another runtime error found by clang's sanitizer (#47082).
* src/base/ftstroke.c (ft_stroke_border_export): Properly handle
empty input buffer.
2016-02-07 21:06:59 +01:00
Werner Lemberg 0d053bac84 Fix runtime errors found by clang's sanitizer (#47082).
* src/base/ftobjs.c (FT_Render_Glyph_Internal), src/base/ftoutln.c
(FT_Outline_Copy), src/cache/ftcsbits.c (ftc_sbit_copy_bitmap):
Properly handle empty input buffer.
2016-02-07 19:25:56 +01:00
Werner Lemberg a1460704d9 [cff] Minor.
* src/cff/cffgload.c (cff_decoder_parse_charstrings) <cff_op_sqrt>:
Remove dead code.
2016-02-07 11:42:37 +01:00
Werner Lemberg 950f16969e [cff] Implement missing operators in new engine (except `random').
* src/cff/cf2font.h (CF2_STORAGE_SIZE): New macro.

* src/cff/cf2intrp.c (cf2_interpT2CharString): Implement the
following operators: abs, add, and, div, drop, dup, eq, exch, get,
ifelse, index, mul, neg, not, or, put, roll, sqrt, sub.

* src/cff/cf2stack.h, src/cff/cf2stack.c (cf2_stack_roll): New
auxiliary function for `roll' operator.
2016-02-07 11:39:54 +01:00
Werner Lemberg 5c8a8cb54c [cff] Fix some Type 2 operators in old CFF engine.
* src/cff/cffgload.c (cff_decoder_parse_charstrings): Fix `eq'
operator, add `not' and (unsupported) `blend' operators.
2016-02-06 08:03:03 +01:00
Sebastian Rasmussen ae7c55d98e Make direct call of `make install' work (#47072).
* builds/unix/unix-def.in (freetype-config): Make sure
`freetype-config' is generated for both make targets (`all' and
`install').
2016-02-05 18:42:19 +01:00
Werner Lemberg 710ac3dda0 [base] Fix advance width loading for MM and GX fonts (#47064).
* src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Return false for
MM and GX fonts.
Update callers.
2016-02-05 12:47:29 +01:00
Werner Lemberg cd346da588 [cff] Fix handling of face_index == -1 for pure CFF.
* src/cff/cffobjs.c (cff_face_init): Return correct number of faces.
2016-02-03 19:32:03 +01:00
Werner Lemberg baa41ff204 [autofit] Minor tracing improvement.
* src/autofit/afhints.c (af_glyph_hints_dump_points): Insert newline
at the start of a new contour.
2016-01-30 07:44:30 +01:00
Nikolaus Waxweiler 1d8d0b4ef9 Remove unpatented hinter (3/3).
* include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_UNPATENTED_HINTING): Remove.

* include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Remove
`ignore_unpatented_hinter' field.
Update users.
(FT_DEBUG_HOOK_UNPATENTED_HINTING): Remove.
Update users.

* include/freetype/internal/tttypes.h (TT_FaceRec): Remove
`unpatented_hinting' field.
Update users.

* src/base/ftpatent.c (_tt_check_patents_in_range,
_tt_check_patents_in_table, _tt_face_check_patents): Remove.
(FT_Face_CheckTrueTypePatents, FT_Face_SetUnpatentedHinting):
Replace code with dummies.

* src/truetype/ttobjs.c (tt_face_init): Remove now defunct code.
* src/truetype/ttobjs.h (TT_GraphicsState): Remove `both_x_axis'
field.
2016-01-28 14:11:14 +01:00
Nikolaus Waxweiler 5b7871be12 Remove unpatented hinter (2/3).
* devel/ftoption.h (TT_CONFIG_OPTION_UNPATENTED_HINTING): Remove.
2016-01-28 12:27:46 +01:00
Nikolaus Waxweiler 6875093a17 Remove unpatented hinter (1/3).
* src/truetype/ttinterp.c [TT_CONFIG_OPTION_UNPATENTED_HINTING]:
Remove all code related to this macro.
2016-01-28 12:24:36 +01:00
Werner Lemberg 8d810097fd [autofit] Add blue-zone support for Kannada script.
This essentially moves the Kannada script from the `Indic' hinter to
the `Latin' hinter.

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

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

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

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

* src/autofit/afstyles.h: Update Kannada data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2016-01-28 10:13:24 +01:00
Alexei Podtelezhnikov e4c69d226c Better access to 64-bit integers for C99 compilers.
* include/freetype/config/ftconfig.h [FT_LONG64]: Use
__STDC_VERSION__ to define 64-bit integers.
* builds/unix/ftconfig.in [FT_LONG64]: Ditto.
* builds/vms/ftconfig.h [FT_LONG64]: Ditto.
2016-01-22 23:35:49 -05:00
Werner Lemberg fc4523bd00 [gxvalid] Remove commented out code.
* src/gxvalid/gxvcommn.c (gxv_EntryTable_validate): Do it.
2016-01-21 06:20:20 +01:00
Werner Lemberg fb672897f8 [autofix] Complete last autofit commit.
Problem reported by Kostya Serebryany <kcc@google.com>.

* src/autofit/afshaper.c (af_shaper_get_coverage)
[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Update signature.
2016-01-20 21:13:16 +01:00
Werner Lemberg 24fbed052f Still handle `__FTERRORS_H__'.
We need this for backwards compatibility.

Problem reported by John Emmas <johne53@tiscali.co.uk>.

* include/freetype/fterrors.h: Fix inclusion guard so that
undefining either `FTERRORS_H_' or `__FTERRORS_H__' works as
expected.
2016-01-20 21:10:41 +01:00
Werner Lemberg ec776596ce [autofit] Fix handling of default script.
Patch taken from ttfautohint, commit
071ae2c00e0d67f9d19418f4fade1c23d27dc185.

There were two bugs.

  - We now use non-standard script tags like `khms' for special
    purposes.  However, HarfBuzz maps such tags to `DFLT', and
    without this commit the associated lookups were incorrectly
    assigned to the non-standard tags.

  - Let's assume we have a Bengali font, and the font's `DFLT'
    script tag handles the necessary lookups for Bengali, too.
    Without this commit, the `DFLT' lookups were assigned to
    ttfautohint's default script (usually `latn') before the
    standard lookups for Bengali were handled.

    We now have the following order while searching for covered
    glyph indices.

      special features of scripts (e.g. `sups' for Cyrillic)
      Unicode mappings of scripts
      remaining features of scripts (especially important for Indic
        scripts)
      default features of default script

* src/autofit/afshaper.c, src/autofit/afshaper.h
(af_shaper_get_coverage): Add boolean parameter to indicate default
script.
Update all callers.

* src/autofit/afglobal.c (af_face_globals_compute_style_coverage):
Fix search order for coverages.
2016-01-19 19:33:57 +01:00
Werner Lemberg fc11af1ea2 Various minor clang fixes.
* src/autofit/afcjk.c (af_cjk_metrics_init_widths),
src/autofit/aflatin.c (af_latin_metrics_init_widths): Initialize
`ch'.

* src/base/ftcalc.c (FT_MulFix) [FT_LONG64]: Add cast.

* src/base/ftdbgmem.c (ft_mem_table_destroy): Add cast.

* src/base/fthash.c (hash_num_lookup): Add cast.

* src/base/fttrigon.c (ft_trig_downscale) [FT_LONG64]: Fix cast.

* src/gxvalid/gxvcommn.c (gxv_EntryTable_validate): Comment out
redundant code.

* src/type1/t1driver.c (t1_get_ps_font_value) <PS_DICT_SUBR>: Add
cast.

* src/type1/t1load.c (parse_subrs): Fix type of `count'.
2016-01-19 19:15:54 +01:00
Derek B. Noonburg 4cdfefd4bd [truetype] Add another tricky font.
* src/truetype/ttobjs.c (TRICK_SFNT_IDS_NUM_FACES): Increase.
(sfnt_id): Add variant of `DFKaiShu'.
2016-01-19 07:12:44 +01:00
Alexei Podtelezhnikov 32760d33d0 [base] Empower `FT_Library_SetLcdFilterWeights'.
* src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights): Enable filter
in addition to setting weights.
(FT_Library_SetLcdFilter): Clean out FT_FORCE_LIGHT_LCD_FILTER and
FT_FORCE_LEGACY_LCD_FILTER.
* include/freetype/ftlcdfil.h: Documentation update.
2016-01-14 23:31:08 -05:00
Werner Lemberg 9adeab6452 Update copyright year. 2016-01-13 11:54:10 +01:00
Werner Lemberg c09a90a2f1 Don't use macro names that start with `_[A-Z]' [3/3].
Such macro names are reserved for both C and C++.

* src/cache/ftccache.h: s/_FTC_FACE_ID_HASH/FTC_FACE_ID_HASH/.
Update all callers.
(FTC_CACHE_LOOKUP_CMP): Replace `_XXX' with `XXX_'.
* src/cache/ftcmru.c (FTC_MRULIST_LOOKUP_CMP): Ditto.
2016-01-12 22:28:14 +01:00
Werner Lemberg 9d0b76d7f6 Don't use macro names that start with `_[A-Z]' [2/3].
Such macro names are reserved for both C and C++.

* include/freetype/ftimage.h, src/raster/ftraster.c,
src/smooth/ftgrays.c, src/smooth/ftgrays.h:
s/_STANDALONE_/STANDALONE_/.
2016-01-12 22:27:29 +01:00
Werner Lemberg 758587dbdb Don't use macro names that start with `_[A-Z]' [1/3].
Such macro names are reserved for both C and C++.

* src/bdf/bdflib.c: Replace macros of the form `_BDF_XXX' with
`BDF_XXX_'.
2016-01-12 22:20:06 +01:00
Werner Lemberg 2e9d2660b3 Don't use macro names that contain `__' [2/2].
Such macro names are reserved for both C and C++.

* src/cache/*: s/__/_/.
2016-01-12 21:40:53 +01:00
Werner Lemberg 37412ff9f4 Don't use macro names that contain `__' [1/2].
Such macro names are reserved for both C and C++.

*/*: Replace macros of the form `__XXX_H__' with `XXX_H_'.
2016-01-12 21:37:13 +01:00
Jered Gray f53bab9381 [cff] Fix usage of `|' operator.
* src/cff/cf2intrp.c (cf2_interpT2CharString) [cf2_cmdEXTENDEDNMBR,
default]: `|' is not guaranteed to be processed from left to right
by the compiler.  However, the code repeatedly calls
`cf2_buf_readByte' to get the arguments to `|' ...  Fix this.
2016-01-10 12:03:36 +01:00
Werner Lemberg 2e09812c51 [autofit] Make top-to-bottom hinting work in latin auto-hinter.
This improves rendering of scripts like Bengali or Devanagari.

* src/autofit/afhints.c (af_axis_hints_new_edge): Add parameter to
pass top-to-bottom hinting flag.  This makes the function sort edges
in descending vertical position.

* src/autofit/afhints.c: Updated.

* src/autofit/aflatin.c (af_latin_hints_compute_edges,
af_latin_hint_edges): Use `top_to_bottom_hinting' flag.

* src/autofit/afcjk.c (af_cjk_hints_compute_edges),
src/autofit/aflatin2.c (af_latin2_hints_compute_edges): Updated.
2015-12-25 08:05:30 +01:00
Werner Lemberg 172db3254c [autofit] Add hinting direction to `AF_ScriptClassRec'.
Still unused.

* src/autofit/afglobal.c (SCRIPT): Handle hinting direction.

* src/autofit/aftypes.h (AF_ScriptClassRec): Add
`top_to_bottom_hinting' field.
(AF_HINTING_BOTTOM_TO_TOP, AF_HINTING_TOP_TO_BOTTOM): New macros.
(AF_DEFINE_SCRIPT_CLASS): Updated.
2015-12-24 08:17:51 +01:00
Werner Lemberg b0de5a82f1 [autofit] Start implementing hinting direction (up/down, down/up).
Right now, it does nothing.

* src/autofit/afscript.h: Add another parameter to `SCRIPT',
specifying hinting direction.

* src/autofit/afglobal.c, scr/autofit/afglobal.h,
src/autofit/afpic.c, src/autofit/afranges.h, src/autofit/afshaper.c,
src/autofit/aftypes.h: Extend `SCRIPT' definitions.
2015-12-23 23:25:03 +01:00
Werner Lemberg 9c1a2b0439 * src/type1/t1load.c (parse_subrs): Fix memory leak (#46744). 2015-12-22 12:05:46 +01:00
Werner Lemberg 7ce6c43c3e [base] Make hash interface symmetric.
Use `num' and `str' infixes everywhere.

* src/base/fthash.c (ft_hash_init): Renamed to...
(hash_init): ... This.
(ft_hash_str_init, ft_hash_num_init): New functions.
(ft_hash_free): Renamed to...
(ft_hash_str_free): ... This.

* include/freetype/internal/fthash.h: Updated.

* src/bdf/bdflib.c, src/type1/t1load.c, src/type1/t1objs.c: Updated.
2015-12-22 05:39:58 +01:00
Werner Lemberg 60d13bd432 [type1] Avoid shift of negative numbers (#46732).
* src/type1/t1load.c (parse_subrs): Do it.
2015-12-21 17:27:17 +01:00
Werner Lemberg bd4b8976a3 [type1, psaux] Handle large values of num_subrs correctly (#46692).
We now use a hash to map from subr indices to array elements holding
the subroutines, if necessary.

* include/freetype/internal/t1types.h: Include FT_INTERNAL_HASH_H.
(T1_FontRec): Add `subrs_hash' field.

* include/freetype/internal/psaux.h: Include FT_INTERNAL_HASH_H.
(T1_DecoderRec): Add `subrs_hash' field.

* src/type1/t1load.h (T1_LoaderRec): Add `subrs_hash' field.

* src/type1/t1driver.c: Include FT_INTERNAL_HASH_H.
(t1_ps_get_font_value) [PS_DICT_SUBR]: Look up hash if necessary.

* src/type1/t1load.c: Include FT_INTERNAL_HASH_H.
(parse_subrs): Use hash for subr indices that exceed the allocated
number of subr slots.
(t1_init_loader): Remove unnecessary code.
(t1_done_loader, T1_Open_Face): Updated.

* src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances,
T1_Load_Glyph): Updated.

* src/type1/t1objs.c (T1_Face_Done): Updated.

* src/psaux/t1decode.c: Include FT_INTERNAL_HASH_H.
(t1_decoder_parse_charstrings) [op_callsubr]: Look up hash if
necessary.

* src/cid/cidgload.c (cid_load_glyph): Updated.
2015-12-20 19:36:04 +01:00
Werner Lemberg 1caf629eef [base] Thinko: Remove free function pointer.
We don't copy keys or values while hashing.

* include/freetype/internal/fthash.h (FT_Hash_FreeFunc): Removed.
(FT_HashRec): Remove `free' field.

* src/base/fthash.c (hash_str_free): Removed.
(ft_hash_init, ft_hash_free): Updated.
2015-12-20 19:00:35 +01:00
Werner Lemberg 76e79ec9a5 [base, bdf] Don't expose `FT_Hashnode' in hash functions.
* src/base/fthash.c (hash_lookup, ft_hash_str_lookup,
ft_hash_num_lookup): Return pointer to `size_t' instead of
`FT_Hashnode'.

* include/freetype/internal/fthash.h: Updated.

* src/bdf/bdflib.c (bdf_get_property, _bdf_add_property,
bdf_get_font_property): Updated.
2015-12-20 09:03:15 +01:00
Werner Lemberg ad306eaa5e [base, bdf] Add number hashing.
* src/base/fthash.c (hash_num_lookup, hash_num_compare): New
functions.
(ft_hash_init): Add argument to select between number and string
hashing.
(ft_hash_num_insert, ft_hash_num_lookup): New functions.

* include/freetype/internal/fthash.h: Updated.

* src/bdf/bdflib.c (_bdf_parse_start): Updated.
2015-12-20 08:33:21 +01:00
Werner Lemberg 1b7549ccc7 [base] Introduce hash lookup, compare, and free function pointers.
* include/freetype/internal/fthash.c (FT_Hash_LookupFunc,
FT_Hash_CompareFunc, FT_Hash_FreeFunc): New typedefs.
(FT_HashRec): Add `lookup', `compare', and `free' fields.

* src/base/fthash.c (hash_str_lookup, hash_str_compare,
hash_str_free): New functions.
(ft_hash_init): Set function pointers.
(hash_bucket, ft_hash_free): Use them.
2015-12-20 08:00:33 +01:00
Werner Lemberg 609546c4b8 [base, bdf] Use a union as a hash key.
We want to support both an integer and a string key later on.

* include/freetype/internal/fthash.h (FT_Hashkey): New union.
(FT_HashnodeRec): Updated.
(ft_hash_insert, ft_hash_lookup): Renamed to ...
(ft_hash_str_insert, ft_hash_str_lookup): ... this.

* src/base/fthash.c (hash_bucket): Updated.
(ft_hash_insert, ft_hash_lookup): Renamed to ...
(hash_insert, hash_lookup): ... this.
(ft_hash_str_insert, ft_hash_str_lookup): New wrapper functions.

* src/bdf/bdflib.c: Updated.
2015-12-20 07:17:29 +01:00
Werner Lemberg 313435657d [bdf] Use new hash functions.
* src/bdf/bdf.h: Include FT_INTERNAL_HASH_H.
(hashnode, hashtable): Removed.
(bdf_font_t): Use `FT_HashRec' type for `proptbl'.

* src/bdf/bdflib.c: Remove all hash functions.
Update code for new hash structure and function names.
2015-12-19 17:02:13 +01:00
Werner Lemberg c98a40f99d [bdf, base] Lift hash functions from bdf driver to base module.
* src/base/fthash.c, include/freetype/internal/fthash.h: New files,
containing (massaged) code from `bdflib.c' and `bdf.h'.

* include/freetype/internal/internal.h (FT_INTERNAL_HASH_H): New
macro.

* src/base/ftbase.c: Include `fthash.c'.

* src/base/Jamfile (_sources): Add `fthash'.

* src/base/rules.mk (BASE_SRC): Add `fthash.c'.

* docs/LICENSE.TXT: Updated.
2015-12-19 16:59:40 +01:00
Werner Lemberg 02451c7917 [autofit] Add blue-zone support for Bengali script.
This essentially moves the Bengali script from the `Indic' hinter to
the `Latin' hinter.

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

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

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

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

* src/autofit/afstyles.h: Update Bengali data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2015-12-15 17:53:46 +01:00
Ben Wagner a512b0fe7a [bdf] Remove dead code (#46625).
The BDF specification only allows decimal numbers, no octal or
hexidecimal decoding is needed.

* src/bdf/bdflib.c (_bdf_atoul, _bdf_atol, _bdf_atous,
_bdf_atos): Remove unused code and parameters.
Update all callers.
(odigits): Remove.
2015-12-14 09:19:52 +01:00
Werner Lemberg 4099281f6e [base] Fix calls to `FT_Stream_Seek'.
* src/base/ftobjs.c (Mac_Read_sfnt_Resource, FT_Open_Face): Set
`error'.
2015-12-14 07:51:25 +01:00
Ben Wagner f0cc1738e2 [base] Check error when seeking to data supplied offset (#46635).
* src/base/ftobjs.c (open_face_PS_from_sfnt_stream):
`ft_lookup_PS_in_sfnt_stream' returns offset and and length from
user supplied data.  Use of this these values must be checked.
2015-12-14 07:00:41 +01:00
Werner Lemberg d8f9a453b2 [autofit] Add support for Myanmar script.
* src/autofit/afblue.dat: Add blue zone data for Myanmar.

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

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

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

* src/autofit/afstyles.h: Add Myanmar data.
2015-12-13 15:54:17 +01:00
Werner Lemberg 868d5a0eaf * src/autofit/aflatin.c (af_latin_metrics_init_blues): Minor. 2015-12-12 07:28:22 +01:00
Werner Lemberg 79a42ad283 * src/autofit/afscript.h: Avoid potential crash. 2015-12-12 07:27:14 +01:00
Werner Lemberg 4fe3b55d0b [autofit] Restore OpenType feature check.
This was removed while rewriting the HarfBuzz interface.

* src/autofit/afglobal.h (AF_FaceGlobalsRec): Add `hb_buf' field to
hold internal HarfBuzz buffer, needed for feature comparison.

* src/autofit/afglobal.c (af_face_globals_new,
af_face_globals_free): Initialize and destroy `hb_buf'.

* src/autofit/afshaper.c (af_shaper_get_cluster): Compare character
(cluster) with and without applied feature.

* src/autofit/aflatin.c (af_latin_metrics_init_blues): Fix tracing
message.
2015-12-11 08:08:48 +01:00
Werner Lemberg bbe84ed972 [autofit] Remove redundant code.
* src/autofit/aflatin.c (af_latin_metrics_init_widths): Do it.
2015-12-10 09:33:41 +01:00
Werner Lemberg dd305f31f0 [autofit] Thinko.
* src/autofit/aflatin.c (af_latin_metrics_init_blues): Don't count
empty blue zones (bug introduced 2015-12-06).
2015-12-09 21:00:33 +01:00
Werner Lemberg 0164d934b6 [autofit] Introduce subscript top blue zones.
This feature is mainly for Khmer: The idea is to avoid a clash
between the top of subscript glyphs and the bottom of normal
baseline glyphs.

This only works for character clusters mapped to multiple glyphs.

* src/autofit/afblue.dat: Add subscript top blue zone for Khmer.

* src/autofit/afblue.hin (AF_BLUE_PROPERTY_LATIN_SUB_TOP): New
macro.

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

* src/autofit/aflatin.h (AF_LATIN_IS_SUB_TOP_BLUE,
AF_LATIN_BLUE_SUB_TOP): New macros.

* src/autofit/aflatin.c (af_latin_metrics_init_blues): Handle new
blue zone property.
Update tracing messages.
(af_latin_metrics_scale_dim): Handle new blue zone property.
(af_latin_hints_compute_blue_edges): Updated.
2015-12-09 20:04:18 +01:00
Werner Lemberg f02e1df7ac [autofit] Fix tracing message.
* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Display
inactive blue zones also.
2015-12-09 14:45:30 +01:00
Werner Lemberg c13526e6af * src/autofit/afblue.dat: Add more Khmer clusters.
Some fonts have incorrect ligatures; we need more samples to get a
good mean value.

* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2015-12-08 09:48:50 +01:00
Werner Lemberg b38ca3cbeb [autofit] Typos.
* src/autofit/afshaper.c (af_shaper_buf_create, af_shaper_get_elem)
[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Make it compile.
2015-12-06 19:48:31 +01:00
Werner Lemberg facb79abdc [autofit] Add support for Khmer script.
We split Khmer into two auto-hinter scripts: `Khmer' (`khmr') and
`Khmer symbols' (`khms', U+19E0-U+19FF).

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

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

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

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

* src/autofit/afstyles.h: Add Khmer data.
2015-12-06 19:34:59 +01:00
Werner Lemberg 24aa9c665e [autofit] Rewrite HarfBuzz interface to support character clusters.
Scripts like Khmer have blue zones that can't be directly
represented by Unicode characters.  Instead, it is necessary to let
HarfBuzz convert character clusters into proper glyph representation
forms, then deriving the blue zone information from the resulting
glyphs.

* src/autofit/hbshim.c, src/autofit/hbshim.h: Replaced by...
* src/autofit/afshaper.c, src/autofit/afshaper.h: ... these two new
files, providing a new API to access HarfBuzz.

The new API manages a HarfBuzz buffer with `af_shaper_buf_create'
and `af_shaper_buf_destroy'.  The buffer receives a UTF8 encoded
string with function `af_shaper_get_cluster', and the resulting
glyph data (indices, advance widths, vertical offsets) can be
iteratively accessed with function `af_shaper_get_elem'.

* src/autofit/afcjk.c (af_cjk_metrics_init_widths,
af_cjk_metrics_init_blues, af_cjk_metrics_check_digits): Updated.

* src/autofit/aflatin.c (af_latin_metrics_init_widths,
af_latin_metrics_init_blues, af_latin_metrics_check_digits):
Updated.

* include/freetype/internal/fttrace.h: s/afharfbuzz/afshaper/.

* src/autofit/afglobal.c: s/hbshim.h/afshaper.h/.
(af_face_globals_compute_style_coverage): Updated.

* src/autofit/afglocal.h: s/hbshim.h/afshaper.h/.

* src/autofit/autofit.c: s/hbshim.c/afshaper.c/.

* src/autofit/Jamfile, src/autofit/rules.mk (AUTOF_DRV_SRC):
Updated.
2015-12-06 18:52:41 +01:00
Werner Lemberg de5999411a [autofit] Prepare forthcoming changes.
This makes it easier to control the commits.

* src/autofit/aflatin.c (af_latin_metrics_init_blues): Add dummy
loop.  No functional change.
2015-12-06 18:18:02 +01:00
Werner Lemberg f45c0bf963 [autofit] Use string of standard characters.
This is more flexible; additionally, it would allow character
clusters.

* src/autofit/aftypes.h (SCRIPT, AF_DEFINE_SCRIPT_CLASS): Updated.
(AF_ScriptClassRec): Replace `standard_char[123]' with
`standard_charstring'.

* src/autofit/afscript.h: Replace last three character arguments
of the `SCRIPT' calls with a string parameter, holding the standard
characters (in UTF-8 encoding) separated with spaces.

* src/autofit/afglobal.c, src/autofit/afglobal.h,
src/autofit/afpic.c, src/autofit/afranges.c, src/autofit/hbshim.c
(SCRIPT): Updated.

* src/autofit/afcjk.c (af_cjk_metrics_init_widths),
src/autofit/aflatin.c (af_latin_metrics_init_widths): Updated.
2015-12-06 09:58:18 +01:00
Werner Lemberg a8a54c3060 * src/autofit/afblue.dat: Separate blue zone characters with spaces.
Another preparation for character cluster support.

* src/autofit/afblue.c, src/autofit.afblue.h: Regenerated.
2015-12-05 13:26:44 +01:00
Werner Lemberg 453722db8e * src/tools/afblue.pl (convert_ascii_chars): Don't ignore spaces.
Instead, reduce multiple spaces to a single one.  We need this later
for supporting character clusters in `afblue.dat'.
2015-12-05 13:20:30 +01:00
Werner Lemberg f7e6d51a75 * src/autofit/afblue.hin (GET_UTF8_CHAR): Use `do...while(0)'.
* src/autofit/afblue.h: Regenerated.
2015-12-05 13:08:45 +01:00
Werner Lemberg 53696f03ce * src/autofit/afwarp.c: s/INT_MIN/FT_INT_MIN/. 2015-12-05 07:44:16 +01:00
Werner Lemberg a415473820 * builds/unix/install.mk (install): Remove stale `ft2build.h'. 2015-12-03 07:49:46 +01:00
Werner Lemberg 5b05bc6638 [type1] Avoid dangling pointer (#46572).
* src/type1/t1afm.c (T1_Read_Metrics): Properly reset
`face->afm_data'.
2015-12-01 12:09:02 +01:00
Alexei Podtelezhnikov f8c2057789 * include/freetype/ftlcdfil.h: Documentation tweak. 2015-11-28 22:43:33 -05:00
Werner Lemberg 66cf29b1bc * Version 2.6.2 released.
=========================

Tag sources with `VER-2-6-2'.

* docs/VERSION.DLL: Update documentation and bump version number to
2.6.2.

* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.1/2.6.2/, s/261/262/.

* include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.

* builds/unix/configure.raw (version_info): Set to 18:2:12.
* CMakeLists.txt (VERSION_PATCH): Set to 2.

* docs/CHANGES: Updated.
2015-11-28 19:08:05 +01:00
Werner Lemberg 4679bf83a6 Fix C++ compilation.
* src/autofit/afloader.c: Include FT_INTERNAL_CALC_H.

* src/truetype/ttgload.c (load_truetype_glyph): Pacify compiler.
2015-11-28 19:05:36 +01:00
Nikolaus Waxweiler 01ce1c6a99 Change default LCD filter to be normalized and color-balanced.
Update documentation.

* src/base/ftlcdfil.c (FT_Library_SetLcdFilter): Update
`default_filter'.
2015-11-28 12:04:28 +01:00
Werner Lemberg 98afe3f5c8 [docmaker] Allow references to section names.
In the reference, we show the section's title enclosed in single
quotes.

* src/tools/docmaker/formatter.py (Formatter::__init__): Collect
section names as identifiers.

* src/tools/docmaker/tohtml.py (section_title_header): Split into...
(section_title_header1, section_title_header2): ... these two
strings.
(HtmlFormatter::make_block_url, make_html_word, html_source_quote):
Handle sections.
(HtmlFormatter::section_enter): Updated to add `id' HTML attribute.
2015-11-28 11:58:49 +01:00
Tamas Kenez 30fdfe6c66 [cmake] Add script to test the config module.
* builds/cmake/testbuild.sh: New file.
2015-11-27 23:16:08 +01:00
Tamas Kenez c80620c7fe * CMakeLists.txt: Create `freetype-config.cmake' config module. 2015-11-27 18:37:21 +01:00
Tamas Kenez 9d0544f25f * CMakeLists.txt: Set CMAKE_DEBUG_POSTFIX to `d'. 2015-11-27 18:28:31 +01:00
Tamas Kenez da97b4c43e [cmake] Add better control of library dependencies.
* CMakeLists.txt: Add `WITH_*' variables to force/auto/omit
ZLIB/BZip2/PNG/HarfBuzz.
2015-11-27 07:11:42 +01:00
Tamas Kenez 4854df62f7 [cmake] Make `FindHarfbuzz' observe the REQUIRED option.
* builds/cmake/FindHarfBuzz.cmake: Implement it.
2015-11-27 07:04:31 +01:00
Werner Lemberg 5b3446b012 [cmake] Collect files specific to cmake in `builds/cmake'.
* builds/FindHarfBuzz.cmake: Move to ...
* builds/cmake/FindHarfBuzz.cmake: ... this place.

* CMakeLists.txt (CMAKE_MODULE_PATH): Updated.
2015-11-27 06:47:13 +01:00
Alexander Bock 8f982b3881 CMakeLists.txt: Honour new command line flag `FREETYPE_NO_DIST'. 2015-11-27 06:34:39 +01:00
Werner Lemberg 97b808fdad [docmaker] Allow `foo[bar]' as identifier.
We need this to handle equally named properties in different
modules.

* src/tools/docmaker/content.py (re_identifier),
src/tools/docmaker/sources.py (re_crossref): Allow `foo[bar]'.

* src/tools/docmaker/tohtml.py (HtmlFormatter::make_html_word,
HtmlFormatter::index_exit, HtmlFormatter::section_enter,
HtmlFormatter::block_enter): Handle `foo[bar]'.
2015-11-26 14:29:17 +01:00
Werner Lemberg 4a15013a29 * src/bdf/bdflib.c (bdf_load_font): Fix small memory leak (#46480).
(_bdf_parse_glyphs): Always reset `p->glyph_name' after moving its
contents.
2015-11-25 07:53:49 +01:00
Werner Lemberg 663f2d7a23 * include/freetype/internal/ftcalc.h: Don't use `register' keyword.
This fixes compiler warnings.

Reported by Behdad.
2015-11-21 06:30:43 +01:00
Werner Lemberg b96af12eb6 Add `FT_LCD_FILTER_LEGACY1' enum value.
This does the same as `FT_LCD_FILTER_LEGACY'.

See

  https://bugs.freedesktop.org/show_bug.cgi?id=92981

for the reasoning.

* include/freetype/ftlcdfil.h (FT_LcdFilter): New value
`FT_LCD_FILTER_LEGACY1'.

* src/base/ftlcdfil.c (FT_Library_SetLcdFilter): Use it.
2015-11-20 16:03:09 +01:00
Werner Lemberg 68fb4789a5 * src/autofit/afhints.c (af_get_segment_index): Fix it.
The old code was too simple, returning invalid values in most cases
where a segment crosses the contour start.
2015-11-15 13:06:48 +01:00
Werner Lemberg 94cacac594 * src/bdf/bdflib.c (bdf_load_font): Fix small memory leak (#46439). 2015-11-15 04:45:42 +01:00
Werner Lemberg 75722f8929 [cff, autofit] Switch off stem darkening by default.
* src/autofit/afmodule.c (af_autofitter_init), src/cff/cffobjs.c
(cff_driver_init): Do it.
2015-11-11 09:55:16 +01:00
Jan Alexander Steffens (heftig) ccd3188af1 Allow native CFF hinter in FT_RENDER_MODE_LIGHT.
Both the native CFF hinter and the auto-hinter now have a very
similar rendering style.

* include/freetype/freetype.h: Mention that FT_LOAD_TARGET_LIGHT no
longer implies FT_LOAD_FORCE_AUTOHINT.

* include/freetype/ftmodapi.h (FT_MODULE_DRIVER_HINTS_LIGHTLY): New
macro.

* include/freetype/internal/ftobjs.h (FT_DRIVER_HINTS_LIGHTLY): New
macro.

* src/cff/cffdrivr.c (cff_driver_class): Use it.

* src/base/ftobjs.c (FT_Load_Glyph): Update auto-hinter selection
logic.
2015-11-10 22:33:45 +01:00
Werner Lemberg 2985e4fa30 * src/cid/cidload.c (cid_face_open): Fix GDBytes guard (#46408). 2015-11-09 21:37:40 +01:00
Werner Lemberg 837285e407 [truetype] Remove integer to pointer conversion compiler warning.
Problem reported by Alexei.

* src/truetype/ttgload.c (load_truetype_glyph): Use a solution found
in the glib library to fix the issue.
2015-11-09 09:20:08 +01:00
Behdad Esfahbod abb33121ee [sfnt] Accept version 3 of `EBLC' and `CBLC' tables also.
* src/sfnt/ttsbit.c (tt_face_load_sbit): Implement it.
2015-11-08 10:00:34 +01:00
Philipp Knechtges be32b168ac [autofit] Don't distort (latin) glyphs too much (#46195).
* src/autofit/aflatin.h (AF_LatinBlueRec): Add `ascender' and
`descender' fields.

* src/autofit/aflatin.c (af_latin_metrics_init_blues): Collect
ascender and descender data for blue zones.
(af_latin_metrics_scale_dim): Reject vertical scaling values that
change the result by more than two pixels.
2015-11-08 08:37:51 +01:00
Werner Lemberg 0f0a6bb8aa [sfnt] Ignore embedded bitmaps with zero size (#46379).
* src/sfnt/ttsbit.c (tt_sbit_decoder_load_bit_aligned): Implement
it.
2015-11-05 13:48:11 +01:00
Werner Lemberg 758d55e522 [truetype] Catch infinite recursion in subglyphs (#46372).
* include/freetype/internal/tttypes.h (TT_LoaderRec): New field
`composites'.

* src/truetype/ttgload.c: Include FT_LIST_H.
(load_truetype_glyph): Add composite subglyph index to a list;
abort if index is already in list.
(tt_loader_init): Updated.
(tt_loader_done): New function.
(TT_Load_Glyph): Call `tt_loader_done'.
2015-11-04 11:44:47 +01:00
Werner Lemberg 040edaf5fb [truetype] Better tracing of composite glyphs.
* src/truetype/ttgload.c (TT_Load_Composite_Glyph,
load_truetype_glyph): Implement it.
2015-11-04 07:35:51 +01:00
Werner Lemberg aae8808780 [sfnt] Protect against zero-size bitmaps (#46345).
* src/sfnt/ttsbit.c (tt_sbit_decoder_load_bitmap): Check
`glyph_size'.
2015-11-03 17:30:36 +01:00
Nikolaus Waxweiler b6fd5bc06c * src/autofit/afloader.c (af_loader_load_g): Implement emboldening. 2015-11-03 10:40:58 +01:00
Nikolaus Waxweiler bf2ba9e3d4 [autofit] Implement darkening computation function.
This is a crude adaption of the original `cf2_computeDarkening'
function.

* src/autofit/afloader.c (af_intToFixed, af_fixedToInt,
af_floatToFixed): New macros, taken from `cf2fixed.h'.
(af_loader_compute_darkening): New function.
* src/autofit/afloader.h: Updated.
2015-11-02 13:12:34 +01:00
Nikolaus Waxweiler 37c401ac0a [autofit] Add functions to get standard widths for writing systems.
We need the computed standard horizontal and vertical widths for the
emboldening calculation.  This method provides a convenient way to
extract it from writing-system-specific metrics structures, which
all script definitions must implement.

* src/autofit/aftypes.h (AF_WritingSystem_GetStdWidthsFunc): New
function type.
(AF_WritingSystemClassRec): New member `style_metrics_getstdw'.
(AF_DEFINE_WRITING_SYSTEM_CLASS): Updated.

* src/autofit/afcjk.c (af_cjk_get_standard_width): New function.
(af_cjk_writing_system_class): Updated.
* src/autofit/afdummy.c	(af_dummy_writing_system_class): Updated.
* src/autofit/afindic.c (af_cjk_get_standard_width): New function.
(af_indic_writing_system_class): Updated.
* src/autofit/aflatin.c (af_latin_get_standard_width): New function.
(af_indic_writing_system_class): Updated.
* src/autofit/aflatin.c (af_latin_get_standard_width): New function.
(af_indic_writing_system_class): Updated.
2015-11-02 09:32:26 +01:00
Nikolaus Waxweiler b2a85ad32b [autofit] Extend `AF_FaceGlobalsRec' to hold emboldening data.
* src/autofit/afglobal.h (AF_FaceGlobalsRec): Add fields.

* src/autofit/afglobal.c (af_face_globals_new): Initialize new
fields.
(af_face_globals_free): Reset new fields.
2015-11-02 09:20:32 +01:00
Nikolaus Waxweiler d682e51062 [autofit] Add stem-darkening properties.
Actual code follows in a later commit.

* include/freetype/ftautoh.h: Document `no-stem-darkening' and
`darkening-parameters'.

* src/autofit/afmodule.h: New fields `no_stem_darkening' and
`darken_params'.

* src/autofit/afmodule.c (af_property_set, af_property_get):
Handle them.
(af_autofitter_init): Initialize them.
2015-11-02 09:06:36 +01:00
Werner Lemberg bcf618b256 [ftfuzzer] Add support for multiple files (patch #8779).
Currently, libFuzzer only supports mutation of a single file.  We
circumvent this problem by using an uncompressed tar archive as
multiple-file input for the fuzzer.

This patch enables tests of `FT_Attach_Stream' and AFM/PFM parsing;
a constructed tarball should contain a font file as the first
element, and files to be attached as further elements.

* src/tools/ftfuzzer/ftfuzzer.cc: Include libarchive headers.
(archive_read_entry_data, parse_data): New functions.
(LLVMFuzzerTestOneInput): Updated.

* src/tools/ftfuzzer/ftmutator.cc: New file, providing a custom
mutator for libFuzzer that can mutate tarballs in a sensible way.
2015-11-02 06:50:49 +01:00
Werner Lemberg 57cbb8c148 [sfnt] Fix cmap 14 validation (#46346).
* src/sfnt/ttcmap.c (tt_cmap14_validate): Check limit before
accessing `numRanges' and `numMappings'.
Fix size check for non-default UVS table.
2015-10-31 18:47:26 +01:00
Werner Lemberg 009cc15035 [sfnt] Handle infinite recursion in bitmap strikes (#46344).
* src/sfnt/ttsbit.c (TT_SBitDecoder_LoadFunc,
tt_sbit_decoder_load_bitmap, tt_sbit_decoder_load_byte_aligned,
tt_sbit_decoder_load_bit_aligned, tt_sbit_decoder_load_png): Add
argument for recursion depth.
(tt_sbit_decoder_load_compound): Add argument for recursion depth.
Increase recursion counter for recursive call.
(tt_sbit_decoder_load_image): Add argument for recursion depth.
Check recurse depth.
(tt_face_load_sbit_image): Updated.
2015-10-31 17:52:56 +01:00
Werner Lemberg 02cfd71498 * src/autofit/afhints.c (af_glyph_hints_dump_points): Minor. 2015-10-29 20:50:57 +01:00
Werner Lemberg 017db03ec5 * CMakeLists.txt: Remove code to set MSVC's /FD compiler switch.
Problem reported by David Capello <davidcapello@gmail.com>; see

  http://lists.nongnu.org/archive/html/freetype-devel/2015-10/msg00108.html

for details.
2015-10-29 05:52:09 +01:00
Werner Lemberg fba29fabb3 [pfr] Add some safety guards (#46302).
* src/pfr/pfrload.h (PFR_CHECK): Rename to...
(PFR_CHECK_SIZE): ... this.
(PFR_SIZE): [!PFR_CONFIG_NO_CHECKS]: Define to PFR_CHECK_SIZE.

* src/pfr/pfrload.c (pfr_log_font_count): Check `count'.
(pfr_extra_item_load_kerning_pairs): Remove tracing message.
(pfr_phy_font_load): Use PFR_CHECK_SIZE where appropriate.
Allocate `chars' after doing a size checks.

* src/pfr/pfrsbit.c (pfr_load_bitmap_bits): Move test for invalid
bitmap format to...
(pfr_slot_load_bitmap): ... this function.
Check bitmap size.
2015-10-27 21:04:48 +01:00
Werner Lemberg 6a19a7d332 [truetype] Fix sanitizing logic for `loca' (#46223).
* src/truetype/ttpload.c (tt_face_load_loca): A thinko caused an
incorrect adjustment of the number of glyphs, most often using far
too large values.
2015-10-26 15:40:22 +01:00
Werner Lemberg 7f00fa6462 [autofit] Improve tracing.
* src/autofit/afhints.c (af_print_idx, af_get_segment_index,
af_get_edge_index): New functions.

(af_glyph_hints_dump_points): Remove unnecessary `|', `[', and `]'.
Add segment and edge index for each point.
Slightly change printing order of some elements.
Don't print `-1' but `--' for missing elements.

(af_glyph_hints_dump_segments, af_glyph_hints_dump_edges): Remove
unnecessary `|', `[', and `]'.
Don't print `-1' but `--' for missing elements.
2015-10-25 10:59:59 +01:00
Werner Lemberg 6f09011fe6 [sfnt] Sanitize bitmap strike glyph height.
Problem reported by Nikolay Sivov <bunglehead@gmail.com>.

* src/sfnt/ttsbit.c (tt_face_load_strike_metrics): Avoid zero value
for `metrics->height' by applying some heuristics.
2015-10-24 10:10:22 +02:00
Werner Lemberg e93d326c8b [sfnt, type42] Fix clang compiler warnings.
* src/sfnt/sfobjs.c (sfnt_init_face): Initialize `offset'.

* src/type42/t42parse.c (t42_parse_sfnts): Use proper cast.
2015-10-22 10:17:20 +02:00
Werner Lemberg f1c93439b9 [cff] Avoid overflow/module arithmetic.
This modifies the addition of subroutine number to subroutine bias
from unsigned to signed, but does not change any results.

* src/cff/cf2ft.c (cf2_initGlobalRegionBuffer,
cf2_initLocalRegionBuffer): Change variable names from (unsigned)
`idx' to (signed) `subrNum', since it is not an index until after
the bias is added.
* src/cff/cf2ft.h: Updated.

* src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdCALLSUBR>:
Updated similarly.
2015-10-22 10:11:23 +02:00
Werner Lemberg 59ae73fe16 [cid] Better check of `SubrCount' dictionary entry (#46272).
* src/cid/cidload.c (cid_face_open): Add more sanity tests for
`fd_bytes', `gd_bytes', `sd_bytes', and `num_subrs'.
2015-10-22 09:26:00 +02:00
Werner Lemberg e484d36b2b [base] Pacify compiler (#46266).
* src/base/ftoutln.c (FT_Outline_EmboldenXY): Initialize `in' and
`anchor'.
2015-10-21 20:48:27 +02:00
Werner Lemberg 87fefc594e [type42] Fix heap buffer overflow (#46269).
* src/type42/t42parse.c (t42_parse_sfnts): Fix off-by-one error in
bounds checking.
2015-10-21 20:29:12 +02:00
Dave Arnold 3cfd51233c [cff] Fix limit in assert for max hints.
* src/cff/cf2interp.c (cf2_hintmask_setAll): Allow mask equal to the
limit (96 bits).
2015-10-21 14:07:25 +02:00
Dave Arnold 748e368173 [cff] Remove an assert (#46107).
* src/cff/cf2hints.c (cf2_hintmap_insertHint): Ignore paired edges
in wrong order.
2015-10-21 13:58:43 +02:00
Werner Lemberg e6593389cf [sfnt] Avoid unnecessarily large allocation for WOFFs (#46257).
* src/sfnt/sfobjs.c (woff_open_font): Use WOFF's `totalSfntSize'
only after thorough checks.
Add tracing messages.
2015-10-21 08:04:29 +02:00
Werner Lemberg 649ca5562d [type42] Better check invalid `sfnts' array data (#46255).
* src/type42/t42parse.c (t42_parse_sfnts): Table lengths must be
checked individually against available data size.
2015-10-21 07:01:45 +02:00
Werner Lemberg 3eccc3a3f8 [cid] Add a bunch of safety checks.
* src/cid/cidload.c (parse_fd_array): Check `num_dicts' against
stream size.
(cid_read_subrs): Check largest offset against stream size.
(cid_parse_dict): Move safety check to ...
(cid_face_open): ... this function.
Also test length of binary data and values of `SDBytes',
`SubrMapOffset', `SubrCount', `CIDMapOffset', and `CIDCount'.
2015-10-20 22:31:57 +02:00
Werner Lemberg d47d372c96 [cid] Avoid segfault with malformed input (#46250).
* src/cid/cidload.c (cid_read_subrs): Return a proper error code for
unsorted offsets.
2015-10-20 12:24:36 +02:00
StudioEtrange 5cf83a5335 * CMakeLists.txt: Enable shared library builds on MinGW (#46233). 2015-10-20 07:19:44 +02:00
Werner Lemberg 3c582060b2 * src/type1/t1afm.c (T1_Read_Metrics): Fix memory leak (#46229). 2015-10-20 06:57:28 +02:00
Bungeman ba8a528b19 [cid] Better handle invalid glyph stream offsets (#46221).
* src/cid/cidgload.c (cid_load_glyph): Check minimum size of glyph
length.
2015-10-19 23:27:06 +02:00
Werner Lemberg 24cee3a8a3 [psaux] Fix tracing of negative numbers.
Due to incorrect casting negative numbers were shown as very large
(positive) integers on 64bit systems.

* src/psaux/t1decode.c (t1_decoder_parse_charstrings) <op_none>:
Use division instead of shift.
2015-10-19 23:00:28 +02:00
Werner Lemberg 14213b5409 [truetype] Improve TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES (#46223).
* devel/ftoption.h, include/freetype/config/ftoption.h: Surround it
with #ifndef ... #endif, as suggested in the tracker issue.
2015-10-18 18:15:04 +02:00
Werner Lemberg dcfc4d9c21 [truetype] Better protection against malformed `fpgm' (#46223).
* src/truetype/ttobjs.c (tt_size_init_bytecode): Don't execute a
malformed `fpgm' table more than once.
2015-10-18 16:47:06 +02:00
Werner Lemberg 7643b5839b * src/cid/cidgload.c (cid_load_glyph): Fix memory leak.
Reported by Kostya Serebryany <kcc@google.com>.
2015-10-17 15:51:29 +02:00
Werner Lemberg b185747dd6 [bdf] Prevent memory leak (#46217).
* src/bdf/bdflib.c (_bdf_parse_glyphs) <STARTCHAR>: Check
_BDF_GLYPH_BITS.
2015-10-17 14:21:41 +02:00
Werner Lemberg e1ca18d449 [bdf] Use stream size to adjust number of glyphs.
* src/bdf/bdflib.c (ACMSG17): New message macro.
(_bdf_parse_t): Add member `size'.
(bdf_load_font): Set `size'.
(_bdf_parse_glyphs): Adjust `cnt' if necessary.
2015-10-17 11:51:27 +02:00