Commit Graph

4548 Commits

Author SHA1 Message Date
Alexei Podtelezhnikov
c0a6f20a4b Replace `ft_highpow2' function.
* src/pfr/pfrobjs.c (pfr_face_get_kerning): Use `FT_MSB' instead of
`ft_highpow2'.

* src/base/ftutil.c, include/internal/ftobjs.h (ft_highpow2): Remove
it.
2014-07-16 22:05:56 -04:00
Alexei Podtelezhnikov
177982e933 * src/base/ftcalc.c (FT_MSB): Utilize gcc builtins. 2014-07-15 23:54:34 -04:00
Alexei Podtelezhnikov
71330ceb50 [base] Move assembler code back in the source file.
FT_MulFix assembler used to reside in ftcalc.c before f47d263f1b.

* include/config/ftconfig.h, builds/unix/ftconfig.in,
builds/vms/ftconfig.h [FT_MULFIX_ASSEMBLER]: Move code from here...

* src/base/ftcalc.c [FT_MULFIX_ASSEMBLER]: ... to here.
2014-07-15 23:30:45 -04:00
Alexei Podtelezhnikov
1183cd4e17 [base] Further clean up color bitmap conversion.
* src/base/ftbitmap.c (ft_gray_for_premultiplied_srgb_bgra): Stop
using FT_MulFix and FT_DivFix since all calculations fit into 32 bits.
2014-07-14 22:30:55 -04:00
Werner Lemberg
441b3f3898 [truetype] Improve handling of buggy `prep' tables.
In case of an error in the `prep' table, no longer try to execute it
again and again.  This makes FreeType handle endless loops in buggy
fonts much faster.

* src/truetype/ttobjs.h (TT_SizeRec): The fields `bytecode_ready'
and `cvt_ready' are now negative if not initialized yet, otherwise
they indicate the error code of the last run.

* src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep,
tt_size_done_bytecode, tt_size_init_bytecode,
tt_size_ready_bytecode, tt_size_init, tt_size_done, tt_size_reset):
Updated.

* src/truetype/ttgload.c (tt_loader_init): Updated.
* src/truetype/ttinterp.c (TT_RunIns): Force reexecution of `fpgm'
and `prep' only if we are in the `glyf' table.
2014-07-13 02:28:14 +09:00
Werner Lemberg
e98e2bc1aa * builds/vms/ftconfig.h: Synchronize.
Problem reported by Alexei.
2014-07-12 16:37:39 +09:00
Alexei Podtelezhnikov
35576bf067 [base] Clean up bitmap conversion.
* src/base/ftbitmap.c (ft_gray_for_premultiplied_srgb_bgra): Use
appropriate FT_DivFix and remove superfluous upscaling.
2014-07-11 22:40:34 -04:00
Alexei Podtelezhnikov
2f52df4a0d [base] Improve comment. 2014-07-05 22:29:26 -04:00
Alexei Podtelezhnikov
ceab95a649 [base] Small optimization of the ancient code.
* src/base/ftcalc.c (FT_MulDiv, FT_MulDiv_No_Round): Loosen up the
condition for direct 32-bit calculations.
2014-07-04 23:01:32 -04:00
Werner Lemberg
3897556a13 Fix Apple standard glyph names.
* src/sfnt/ttpost.c (tt_post_default_names): Synchronize with
`tools/glnames.py'

Problem reported by Adam Twardoch <adam@fontlab.com>.
2014-06-27 06:55:56 +02:00
Werner Lemberg
ccf60ad445 Formatting. 2014-06-25 08:58:14 +02:00
Werner Lemberg
231171fc3a Partially revert commit from 2014-06-13.
* src/autofit/aflatin.c (af_latin_metrics_init_blues): Move
declaration of `p_first' and `p_last' out of the loop.
2014-06-17 09:14:32 +02:00
Werner Lemberg
cf2347c962 * builds/unix/freetype2.m4: s/AC_PATH_PROG/AC_PATH_TOOL/.
This simplifies cross-compiling.
2014-06-17 09:01:04 +02:00
Werner Lemberg
d708658c4a And another warning from Wojciech. 2014-06-13 15:56:11 +02:00
Werner Lemberg
e5c0fff5af Fix more compiler warnings.
Reported by Wojciech Mamrak <wmamrak@gmail.com>.

* src/autofit/afglobal.c (af_face_globals_compute_style_coverage):
Make integer constant unsigned.

* src/sfnt/ttsbit.c (tt_face_load_strike_metrics)
<TT_SBIT_TABLE_TYPE_SBIX>: Fix types.
(tt_sbit_decoder_load_compound, tt_face_load_sbix_image): Add proper
casts.
2014-06-13 14:01:20 +02:00
Werner Lemberg
6497b9c5a5 Fix compiler warnings.
Reported by Wojciech Mamrak <wmamrak@gmail.com>.

* src/autofit/afglobal.c (af_face_globals_compute_style_coverage),
src/autofit/afmodule.c (af_property_set): Fix `signed' vs.
`unsigned' issues.

* src/autofit/aflatin.c (af_latin_metrics_init_blues): Make compiler
happy.

* src/base/ftlcdfil.c (_ft_lcd_filter_fir): Use only four elements
for `fir'.
Fix `signed' vs. `unsigned' issues.

* src/sfnt/sfobjs.c (WRITE_BYTE): Removed, unused.
(WRITE_USHORT, WRITE_ULONG): Add proper casts.

* src/truetype/ttgload.c (TT_Get_VMetrics): Add proper casts.

* src/truetype/ttinterp.c (Ins_DELTAP): Add proper casts for `B1'
and `B2'.
2014-06-13 09:28:00 +02:00
Werner Lemberg
099489feff Update CHANGES file. 2014-06-10 06:51:52 +02:00
Alexey Petruchik
02f2170432 [cmake] Add option to build OS X framework.
* CMakeLists.txt: Update accordingly.

* builds/mac/freetype-Info.plist: New file.
2014-05-16 08:09:43 +02:00
Werner Lemberg
d7f4594317 [autofit] Fix comment. 2014-05-13 15:33:11 +02:00
Pavel Koshevoy
15da66a630 * CMakeLists.txt (BASE_SRCS): Add missing `ftbdf.c'. 2014-05-13 07:33:48 +02:00
Werner Lemberg
faa21472b7 [autofit] Fix variable initializations.
* src/autofit/afhints.c (af_glyph_hints_reload): Assign default
values to `in_dir' and `out_dir' for all points.
2014-05-11 12:44:00 +02:00
Werner Lemberg
07e7b8affe [autofit] Fix crash with font `CabinSketch-Bold.ttf'.
Problem reported by Ralf S. Engelschall <rse@engelschall.com>.

* src/autofit/afhints.c (af_glyph_hints_reload): Fix threshold for
finding first non-near point.
Properly initialize non-near point deltas.
2014-05-11 08:00:25 +02:00
Werner Lemberg
5f18a0c35d Formatting. 2014-05-01 17:26:52 +02:00
Werner Lemberg
c576bb0d21 [autofit] Add blue-zone support for Devanagari.
This essentially moves the Devanagari script from the `Indic' hinter
to the `Latin' hinter.  Thanks to Girish Dalvi
<girish.dalvi@gmail.com> for guidance with blue zone characters!

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

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

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

* src/autofit/afranges.c: Move Devanagari data out of
AF_CONFIG_OPTION_INDIC block.
Move U+20B9, (new) Rupee sign, from Latin to Devanagari.

* src/autofit/afstyles.h: Update Devanagari data; in particular, use
AF_WRITING_SYSTEM_LATIN.
2014-05-01 17:24:19 +02:00
Werner Lemberg
63bef9a588 [autofit] Fix handling of neutral blue zones in stems.
* src/autofit/afhints.h (AF_Edge_Flags): New value
`AF_EDGE_NEUTRAL'.

* src/autofit/aflatin.c (af_latin_hints_compute_blue_edges): Trace
neutral blue zones with AF_EDGE_NEUTRAL.
(af_latin_hint_edges): Skip neutral blue zones if necessary.
2014-05-01 07:16:05 +02:00
Werner Lemberg
ccfc4b4c4e [autofit] Introduce neutral blue zones to the latin module.
Such blue zones match either the top or the bottom of a contour.  We
need them for scripts where accent-like elements directly touch the
base character (for example, some vowel signs in Devanagari, cf.
U+0913 or U+0914).

* src/autofit/afblue.hin (AF_BLUE_PROPERTY_LATIN_NEUTRAL): New
property.

* src/autofit/afblue.h: Regenerated.

* src/autofit/aflatin.h (AF_LATIN_IS_NEUTRAL_BLUE): New macro.
(AF_LATIN_BLUE_NEUTRAL): New enumeration value.

* src/autofit/aflatin.c (af_latin_metrics_init_blues,
af_latin_hints_compute_blue_edges): Handle neutral blue zones.
2014-04-28 21:13:14 +02:00
Werner Lemberg
abb3fcac85 * src/autofit/hbshim.c: Partially revert commit from 2014-04-17.
Using input glyph coverage data is simply wrong.

Problem reported by Nikolaus Waxweiler <madigens@gmail.com> and
Mantas Mikulėnas <grawity@gmail.com>.
2014-04-25 22:13:32 +02:00
Werner Lemberg
426f0e0453 Minor. 2014-04-24 07:13:31 +02:00
Werner Lemberg
f193637f63 * src/raster/ftraster.c (Vertical_Sweep_Span): Use drop-out mode.
This spot has been missed while introducing support for various
drop-out modes years ago (including no drop-out mode, which this
commit fixes).

Problem reported by Patrick Thomas <pthomas505@gmail.com>.
2014-04-23 08:22:33 +02:00
Werner Lemberg
d9b4470e39 * src/sfnt/pngshim.c (error_callback): s/longjmp/ft_longjmp/. 2014-04-22 07:33:07 +02:00
Werner Lemberg
98e510ee94 [autofit] Fix Savannah bug #42148.
The adaptation of the cjk auto-hinter module to blue stringsets in
2013-08-25 had three severe bugs.  Mea culpa.

1. Contrary to the latin auto-hinter, characters for reference and
   overshoot values of a blue zone are specified separately.  Due to
   the screwed-up change it didn't work at all.

2. A boolean comparison was erroneously replaced with a cast,
   causing invalid results with the `^' operator later on.  The
   visual artifact caused by this problem is the topic of the bug
   report.

3. Two flag values were inverted, causing incorrect assignment of
   reference and overshoot values.

* src/autofit/afblue.dat: Fix CJK bluestrings, introducing a new
syntax to have both reference and overshoot characters in a single
string.  This is error #1.
Add extensive comments.

* src/autofit/afblue.hin (AF_BLUE_PROPERTY_CJK_FILL): Removed, no
longer used.
(AF_BLUE_PROPERTY_CJK_TOP, AF_BLUE_PROPERTY_CJK_HORIZ): Fix values.
This is error #3.

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

* src/autofit/afcjk.c (af_cjk_metrics_init_blues): Correct error #1.
Use character `|' to separate characters for reference and overshoot
values.
Improve tracing messages, synchronizing them with the latin
auto-hinter.
(af_cjk_hints_compute_blue_edges): Fix value of `is_top_right_blue'.
This is error #2.
(af_cjk_align_linked_edge): Add tracing message.

* src/autofit/afcjk.h (AF_CJK_IS_FILLED_BLUE): Removed, no longer
used.
2014-04-20 22:11:27 +02:00
Werner Lemberg
8a2b690c0a Minor documentation fix. 2014-04-18 10:17:49 +02:00
Werner Lemberg
8c7fb78b16 [autofit] More coverage fixes for complex scripts.
* src/autofit/hbshim.c (af_get_coverage): Merge input glyph coverage
of GSUB lookups into output coverage.  Otherwise, ligatures are not
handled properly.
Don't check blue zone characters for default coverage.
2014-04-17 15:53:25 +02:00
Werner Lemberg
bbd8313b5d Make `FT_Get_SubGlyph_Info' actually work.
* src/base/ftobjs.c (FT_Get_SubGlyph_Info): Return FT_Err_Ok
if there is no error.
2014-04-17 01:24:36 +02:00
Werner Lemberg
c44a4ba4a2 Documentation fix. 2014-04-16 23:22:56 +02:00
Werner Lemberg
181fd071ee [afblue.pl]: Minor improvements.
* src/tools/afblue.pl: Allow whitespace before comments.
Ignore whitespace in strings.
2014-04-15 16:47:05 +02:00
Werner Lemberg
8b1f2a6cda [autofit] Improve coverage handling.
* src/autofit/hbshim.c (af_get_coverage): Don't exclude glyphs
appearing in the GPOS table if we are processing the default
coverage.
2014-04-14 07:58:19 +02:00
David Weber
7630787a6a [smooth] Fix stand-alone compilation.
* src/smooth/ftgrays.c (FT_BEGIN_STMNT, FT_END_STMNT): Define.
2014-04-13 15:41:13 +02:00
Werner Lemberg
8a94b1efd6 [autofit] Redesign the recognition algorithm of strong points.
In particular, local extrema without horizontal or vertical segments
are better recognized:

  + A                + D
   \                /
    \              /
     \            /
      \          /
       \        + C
        \    /
       B +/

If the distances AB and CD are large, point B wasn't previously
detected as an extremum since the `ft_corner_is_flat' function
`swallowed' BC regardless of its direction, tagging point B as weak.
The next iteration started at B and made `ft_corner_is_flat' swallow
point C, tagging it as weak also, et voilà.

To improve that, another pass gets now performed before calling
`ft_corner_is_flat' to improve the `topology' of an outline: A
sequence of non-horizontal or non-vertical vectors that point into
the same quadrant are handled as a single, large vector.

Additionally, distances of near points are now accumulated, which
makes the auto-hinter handle them as if they were prepended to the
next non-near vector.

This generally improves the auto-hinter's rendering results.

* src/autofit/afhints.c (af_glyph_hints_reload): Implement it.

* src/autofit/afhints.h (AF_FLAGS): Remove no longer used flag
`AF_FLAG_NEAR'.
2014-04-12 20:44:33 +02:00
Werner Lemberg
71f53e122b [autofit] Improve scoring algorithm for identifying stems.
Problem reported by Karsten Lücke <karsten.luecke@kltf.de>.

The new algorithm takes care of the width of stems: If the distance
between two segments is larger than the largest stem width, the
demerits quickly increase for larger distances.  This improves
hinting of slanted fonts (especially if the inner parts of serifs
have non-horizontal `shoulders'), avoiding false stem links.

* src/autofit/aflatin.c (af_latin_hints_link_segments): Use largest
stem width (if available) to compute better demerits for distances
between stems.
(af_latin_hints_detect_features): Pass stem width array and array
size.
(af_latin_metrics_init_widths): Updated to use original algorithm.
(af_latin_hints_apply): Updated to use new algorithm.

* src/autofit/aflatin.h: Updated.
* src/autofit/afcjk.c: Updated.
2014-04-05 16:27:19 +02:00
Werner Lemberg
87360a78f3 [aflatin] Improve comment. 2014-04-05 00:08:52 +02:00
Werner Lemberg
f8555b5d8c Don't require gzip' module for sfnt'.
Reported by Preet <prismatic.project@gmail.com>.

* src/sfnt/sfobjs.c (woff_open_font): Guard use of
FT_Gzip_Uncompress with FT_CONFIG_OPTION_USE_ZLIB.
2014-04-03 05:45:38 +02:00
Werner Lemberg
f41070fef0 Fix Savannah bug #38235.
Work around a bug in pkg-config version 0.28 and earlier: If a
variable value gets surrounded by doublequotes (in particular values
for the `prefix' variable), the prefix override mechanism fails.

* builds/unix/freetype2.in: Don't use doublequotes.
* builds/unix/unix-def.in (freetype.pc): Escape spaces in directory
names with backslashes.
2014-03-27 17:38:23 +01:00
Werner Lemberg
ab76d970e7 Fix Savannah bug #41946.
Based on a patch from Marek Kašík <mkasik@redhat.com>.

* builds/unix/configure.raw (LIBS_CONFIG): Remove.
* builds/unix/freetype-config.in (libs): Hard-code value.
* builds/unix/unix-def.in: Updated.
2014-03-24 19:45:03 +01:00
Werner Lemberg
d515992587 Another revert for the change from 2014-03-18.
Problem reported by Nikolaus Waxweiler <madigens@gmail.com>.

* src/base/ftcalc.c (FT_MulFix): Ensure that an `FT_MulFix' symbol
gets always exported.
2014-03-22 06:20:54 +01:00
Werner Lemberg
f0c471a495 CMakeLists.txt: Another fix for include directories.
Problem reported by Taylor Holberton <taylorcholberton@gmail.com>.
2014-03-20 07:13:12 +01:00
Werner Lemberg
606c74f6d6 CMakeLists.txt: Fix include directories.
Problem reported by Taylor Holberton <taylorcholberton@gmail.com>.
2014-03-19 23:46:42 +01:00
Werner Lemberg
cc7cf2c3d0 Partially revert last commit.
Found by Alexei.

* src/autofit/aflatin.c (af_latin_metrics_init_blues): Initializing
those variables is plain wrong, since we are in a loop.
2014-03-19 07:35:35 +01:00
Sean McBride
87628724a9 Fix clang warnings.
* src/autofit/aflatin.c (af_latin_metrics_init_blues): Initialize
some variables.

* src/base/ftcalc.c (FT_MulFix): Only use code if
`FT_MULFIX_INLINED' is not defined.

* src/bdf/bdfdrivr.c (bdf_cmap_class), src/cache/ftcbasic.c
(ftc_basic_image_family_class, ftc_basic_image_cache_class,
ftc_basic_sbit_family_class, ftc_basic_sbit_cache_class),
src/cache/ftccmap.c (ftc_cmap_cache_class), src/cache/ftcmanag.c
(ftc_size_list_class, ftc_face_list_class), src/pcf/pcfdrivr.c
(pcf_cmap_class), src/pfr/pfrdrivr.c (pfr_metrics_service_rec): Make
function static.

* src/type1/t1driver.c (t1_ps_get_font_value): Remove redundant
code.
2014-03-18 08:39:35 +01:00
Werner Lemberg
23367ff97f Fix Savannah bug #41869.
This works around a problem with HarfBuzz (<= 0.9.26), which doesn't
validate glyph indices returned by
`hb_ot_layout_lookup_collect_glyphs'.

* src/autofit/hbshim.c (af_get_coverage): Guard `idx'.

* docs/CHANGES: Updated.
2014-03-17 07:33:14 +01:00