Commit Graph

5456 Commits

Author SHA1 Message Date
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
Alexei Podtelezhnikov
98967b77e5 Add comment. 2016-03-23 23:07:24 -04:00
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
3295039107 Whitespace. 2016-02-15 12:54:40 +01:00
Werner Lemberg
3101f89825 [cff] Fix comment. 2016-02-15 08:48:50 +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
1a0716deb0 Typo. 2016-02-09 08:05:55 +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
4c00dfb458 Whitespace. 2016-02-07 11:43:03 +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
1a95d00210 Whitespace. 2016-02-07 00:39:03 +01:00