Commit Graph

4735 Commits

Author SHA1 Message Date
Alexei Podtelezhnikov bc3b5281ed [smooth] Faster fractions.
* src/smooth/ftgrays.c (SUBPIXELS): Replace with...
(FRACT): A fractional coordinate macro to use in...
(gray_render_line, gray_render_scanline): ... here.
2019-05-08 22:08:40 -04:00
Alexei Podtelezhnikov 0c6f61ab12 * src/raster/ftraster.c (Draw_Sweep): Unbreak. 2019-05-07 19:07:11 -04:00
Alexei Podtelezhnikov ea7e20fba6 * src/raster/ftraster.c: Clean-ups. 2019-05-07 07:00:38 -04:00
Werner Lemberg dc39f76cb7 * src/truetype/ttgxvar.c: More use of `FT_fdot14ToFixed'. 2019-05-07 10:09:55 +02:00
Alexei Podtelezhnikov 8172577380 * src/smooth/ftgrays.c (gray_render_line): Small shortcut. 2019-05-04 08:11:20 -04:00
Werner Lemberg 7b84104720 Various clang 8.0 static analyzer fixes.
Reported by Sender Ghost <lightside@gmx.com>.

* src/autofit/afcjk.c (af_cjk_hints_compute_edges): Catch a corner
case where `edge->first' could be NULL.

* src/pfr/pfrobjs.c (pfr_slot_load): Remove unnecessary test of
`size'.

* src/raster/ftraster.c (Draw_Sweep): Catch a corner case where
`draw_right' might be NULL.

* src/sfnt/ttmtx.c (tt_face_get_metrics): Fix limit test for
`aadvance'.
Ensure `abearing' always hold a meaningful result.

* src/truetype/ttgload.c (load_truetype_glyph): Ensure `subglyph' is
not NULL before accessing it.
* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Remove unnecessary
test of `namedstyle'.

* src/type42/t42parse.c (t42_parser_done): Ensure
`parser->root.funcs.done' is not NULL before accessing it.
2019-05-04 08:13:22 +02:00
Alexei Podtelezhnikov 300458eb94 Miscellaneous macro updates.
* src/base/ftoutln.c (SCALED): Updated.
* src/smooth/ftgrays.c (SCALED): Ditto.
(FLOOR, ROUND, CEILING): Removed.
* src/psaux/psfixed.h (cf2_fracToFixed): Updated.
2019-05-03 23:16:42 -04:00
Alexei Podtelezhnikov 65f9516bc7 Tweak LCD filtering.
* src/base/ftlcdfil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy):
Choose direction from bitmap's pixel_mode.
* include/freetype/internal/ftobjs.c (FT_Bitmap_LcdFilterFunc):
Updated.
* src/smooth/ftsmooth.c (ft_smooth_render_generic): Updated.
2019-05-02 23:06:55 -04:00
Werner Lemberg 65e4925af4 * vms_make.com: Updated (#56253).
Remove no longer existing directories (`autohint', `otlayout').
Update used base extensions.
Activate `autofit' module.
Add `gxvalid' module.
Update copyright notices.
2019-05-02 07:21:34 +02:00
Alexei Podtelezhnikov 2ea511eed8 [smooth] Simplify cubic Bézier flattening.
The previous implementation is correct but it is too complex.
The revised algorithm is based on the fact that each split moves
the control points closer to the trisection points on the chord.
The corresponding distances are good surrogates for the curve
deviation from the straight line.

This cubic flattening algorithm is somewhat similar to the conic
algorithm based the distance from the control point to the middle of
the chord.  The cubic distances, however, decrease less predictably
but are easy enough to calculate on each step.

* src/smooth/ftgrays.c (gray_render_cubic): Replace the split
condition.
2019-04-29 22:49:15 -04:00
Alexei Podtelezhnikov 80475edead [smooth] Bithacks and cosmetics.
* src/smooth/ftgrays.c (gray_record_cell, gray_set_cell, gray_hline,
gray_render_conic, gray_convert_glyph_inner): Updated.
2019-04-26 21:53:00 -04:00
Alexei Podtelezhnikov 7a81b63abc Optimize Bézier bisections.
* src/raster/ftraster.c (Split_Conic, Split_Cubic): Use shifts and
refactor.
* src/smooth/ftgrays.c (gray_split_conic, gray_split_cubic): Ditto.
* src/base/ftstroke.c (ft_conic_split, ft_cubic_split): Ditto.
* src/base/ftbbox.c (cubic_peak): Use shifts.
2019-04-25 22:06:33 -04:00
Werner Lemberg 6abce2c2b0 * src/sfnt/ttcmap.c (tt_cmap12_next): Remove dead code.
Found by clang 8.0's static analyzer and reported by Sender Ghost
<lightside@gmx.com>.
2019-04-23 06:52:07 +02:00
Werner Lemberg 4166c45360 [base] Fix thinko in previous commit.
* src/base/ftbitmap.c (FT_Bitmap_Blend): Check final width, not
target pitch.

Problem reported by Sender Ghost <lightside@gmx.com>.
2019-04-23 06:49:56 +02:00
Werner Lemberg 9f6ed10545 * src/base/ftbitmap.c (FT_Bitmap_Blend): Check target pitch.
Problem reported by Sender Ghost <lightside@gmx.com>.
2019-04-22 08:11:28 +02:00
Werner Lemberg af400438b7 Fix return value of `FT_Set_Named_Instance' (#56186).
* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Correctly handle
internal return value -1 of `TT_Set_Var_Design'.
2019-04-22 07:44:01 +02:00
Werner Lemberg c149f7397e [pcf] Fix handling of undefined glyph (#56067).
This commit fixes the changes from 2018-07-21, which broke charmap
iteration.  We now add the default character as a new glyph with
index 0, thus increasing the number of glyphs by one (as before).

* src/pcf/pcfread.c (pcf_get_metrics): Adjust to new artificial
glyph with index 0.
Limit number of elements to 65534.
(pcf_get_bitmaps): Ditto.
Unify two loops into one; this avoids allocation of an intermediate
array.
(pcf_get_encodings): Don't flip indices but copy glyph metrics of
default character to index 0.
Also handle invalid default character.

* docs/CHANGES: Updated.
2019-04-19 07:02:37 +02:00
Minmin Gong ebe3750812 * CMakeLists.txt: Avoid rewriting of unchanged configuration files.
Reported as

  https://savannah.nongnu.org/patch/index.php?9755
2019-04-15 10:46:19 +02:00
JDG 8837ac26d0 * src/tools/apinames.c (main): Fix error message.
Reported as

  https://savannah.nongnu.org/patch/?9796
2019-04-15 10:10:38 +02:00
Werner Lemberg 9e9bc9dade Split off ChangeLog.29. 2019-04-12 06:19:25 +02:00
Alexei Podtelezhnikov 1f271751a3 [smooth] Fix segfault in direct mode (#56092).
* src/base/ftoutln.c (FT_Outline_Render): Set missing clip_box for
direct mode.
* src/smooth/ftgrays.c (gray_raster_render): Use it.
2019-04-11 23:48:21 -04:00
Werner Lemberg 885b4c2475 * src/sfnt/ttcmap.c (tt_get_glyph_name): Pacify compiler (#56061).
This is for Visual Studio 2019 on ARM.
2019-04-06 07:07:37 +02:00
Werner Lemberg 74e9ca6d2e For distribution, replace `.tar.bz2' with `.tar.xz' bundles.
* builds/toplevel.mk (build): Do it.

* README, docs/CHANGES, docs/release: Updated.
2019-04-06 06:51:08 +02:00
Antony Lee 3ad1c93ac1 Make `glyph_name' parameter to `FT_Get_Name_Index' a `const'.
* include/freetype/freetype.h (FT_Get_Name_Index),
include/freetype/internal/ftobjs.h (FT_Face_GetGlyphNameIndexFunc),
include/freetype/internal/services/svgldict.h
(FT_GlyphDict_NameIndexFunc), src/base/ftobjs.c (FT_Get_Name_Index),
src/cff/cffdrivr.c (cff_get_name_index), src/sfnt/sfdriver.c
(sfnt_get_name_index), src/type1/t1driver.c (t1_get_name_index),
src/type42/t42drivr.c (t42_get_name_index): Add `const' to second
argument.
2019-04-06 06:38:16 +02:00
Armin Hasitzka 6986ddac1e [cff] Fix boundary checks.
642bc7590c introduced dynamically
allocated memory when parsing CFF files with the "old" engine.  Bounds
checks have never been updated, however, leading to pointless
comparisons of pointers in some cases.  This commit presents a
solution for bounds checks in the CFF module with an extended logic
for the "old" engine while staying as concise as possible for the
"new" one.

* src/cff/cffparse.h: Introduce the struct `CFF_T2_StringRec' and
the additional field `t2_strings' within `CFF_ParserRec'.

* src/cff/cffparse.c (cff_parser_within_limits): Move all boundary
checks into this new function and update the rest of `cffparse.c' to
use it.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12137
2019-03-31 11:08:49 +01:00
Werner Lemberg df266d3e6b [autofit] Fix Mongolian blue zone characters.
* src/autofit/afblue.dat: Use U+200D (ZERO-WIDTH JOINER) characters
to get medial forms for some Mongolian characters.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
2019-03-20 07:04:06 +01:00
Werner Lemberg dde03eec37 [autofit] Add support for Mongolian script.
As a de-facto standard, layouts using this script are constructed
horizontally line by line, then the lines are rotated clockwise for
vertical display.

* src/autofit/afblue.dat: Add blue zone data for Mongolian.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.

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

* src/autofit/afranges.c, src/autofit/afstyles.h: Add Mongolian
data.
2019-03-19 10:50:38 +01:00
Werner Lemberg fbbcf50367 * Version 2.10.0 released.
==========================

Tag sources with `VER-2-10-0'.

* docs/VERSION.TXT: Add entry for version 2.10.0.
* docs/CHANGES: Updated.

* README, Jamfile (RefDoc), src/base/ftver.rc,
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/2.9.1/2.10.0/, s/291/2100/.

* include/freetype/freetype.h (FREETYPE_MINOR): Set to 10.
(FREETYPE_PATCH): Set to 0.

* builds/unix/configure.raw (version_info): Set to 23:0:17.
* CMakeLists.txt (VERSION_MINOR): Set to 10.
(VERSION_PATCH): Set to 0.

* builds/toplevel.mk (version, winversion): Since the minor version
number has two digits now, never omit the patch number.  We would
get ambiguous zip file names otherwise.
(dist): Remove remnants of `docmaker' tool.
(do-dist): Remove unused intermediate files.

* src/cff/cffparse.c (destrict_c2s_item): Guard function with
CFF_CONFIG_OPTION_OLD_ENGINE macro.
2019-03-15 07:56:49 +01:00
Andrei Alexeyev 2f4b740ce4 Fix invalid function pointer casts.
This change should allow Freetype to work on WASM/Emscripten without
needing `-s EMULATE_FUNCTION_POINTER_CASTS=1'.

* src/autofit/afdummy.c (af_dummy_hints_apply): Fix signature.

* src/cid/cidload.c (cid_parse_font_matrix, parse_fd_array,
parse_expansion_factor, parse_font_name): Return `void', not
`FT_Error'.

* include/freetype/internal/ftobjs.h (FT_CMap_CharVarIsDefaultFunc):
Fix signature.
2019-03-07 09:43:05 +01:00
Werner Lemberg 31757f969f [base] Handle numeric overflow (#55827).
* src/base/ftglyph.c (FT_Glyph_Get_CBox): Use `FT_PIX_CEIL_LONG'.
2019-03-05 11:35:03 +01:00
Sebastian Rasmussen 6a4718a3a0 Fix use of uninitialized memory.
* src/psaux/psintrp.c (cf2_interpT2CharString): The call to
`cf2_arrstack_setCount' may fail because the allocator ran out of
memory.  When this happens the stack is still written to before the
error condition is checked.  This means that FreeType writes outside
of allocated memory.  This commit moves the error check prior to the
stack assignment, hence the function now properly returns with an
error condition.
2019-03-05 11:28:19 +01:00
Werner Lemberg bf04c59249 Minor doc fixes. 2019-02-25 06:32:26 +01:00
Werner Lemberg 6ab36880ce * src/base/ftbitmap.c (FT_Bitmap_Blend): No fractional offsets.
The function only provided a framework without an actual
implementation, which this commits removes.
2019-02-23 11:18:39 +01:00
Werner Lemberg 7585997024 Update all copyright notices. 2019-02-23 10:07:09 +01:00
Werner Lemberg fd8fc64efb * src/tools/update-copyright-year: Insert `(C)'. 2019-02-23 10:05:37 +01:00
Armin Hasitzka 8ea854bfe9 [truetype] Mask numeric overflows.
* src/truetype/ttinterp.c (Move_CVT, Move_CVT_Stretched, Ins_MIRP):
Mask numeric overflows.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11681
  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11734
2019-02-21 10:14:57 +00:00
Armin Hasitzka 5e3a38b194 [psaux] Mask numeric overflow.
* src/psaux/cffdecode.c (cff_decoder_parse_charstrings): Mask numeric
overflow.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13041
2019-02-21 10:04:28 +00:00
Wink Saville 0ac6921109 * src/autofit/afwarp.h (af_warper_compute): Fix declaration. 2019-02-16 07:05:39 +01:00
Werner Lemberg 29b302ad36 Minor. 2019-02-16 07:05:24 +01:00
Nikolaus Waxweiler a6feefdfef [truetype] Apply MVAR hasc, hdsc and hlgp metrics to current FT_Face metrics.
Instead of setting typo or win metrics as the new FT_Face metrics
indiscriminately, apply only typo deltas to the currently active FT_Face
metrics. This prevents line height differences when e.g. the default
outlines were used as the regular face and instances for everything else.

* src/truetype/ttgxvar.c (tt_apply_mvar): Implement.
2019-02-02 15:50:57 +00:00
Nikolaus Waxweiler f72b00746c [sfnt] Use typo metrics if OS/2 fsSelection USE_TYPO_METRICS bit is set.
If the OS/2 table exists and fsSelection bit 7 (USE_TYPO_METRICS) is set,
use the sTypo* set of values to compute the FT_Face's ascender, descender
and height. Otherwise, fall back to old behavior.

* src/sfnt/sfobjs.c (sfnt_load_face): Implement.
2019-02-02 15:45:31 +00:00
Werner Lemberg f686ad46a3 Update copyright years. 2019-01-22 20:31:44 +01:00
John Tytgat f61f49fef7 [sfnt] Handle TT fonts having two PostScript font names (#55471).
* src/sfnt/sfdriver.c (sfnt_get_name_id): Prefer English over any
other language found for PostScript font names.
2019-01-18 13:25:23 +01:00
Chris Liddell b75abeb5e6 [psaux] Fix closepath (#55414).
All of the Type 1 path building is done with code common to the
revised CFF engine, with the exception of closepath, which was still
calling ps_builder_close_contour(), thus previously cached segments
were not always written to the path, and glyph corruption, or even
invalid outlines were possible.

* src/psauc/psinterp.c (cf2_interpT2CharString) <cf2_cmdCLOSEPATH>:
Switch to calling `cf2_glyphpath_closeOpenPath'.
2019-01-08 20:51:39 -05:00
Werner Lemberg b89166cc4d * src/autofit/aflatin2.c: Some fixes from `aflatin.c' (#55310). 2018-12-29 08:55:01 +01:00
Werner Lemberg afa043de9c Fix links (mostly http -> https). 2018-12-25 22:44:05 +01:00
Werner Lemberg 5e02965905 * src/psaux/cffdecode.c (cff_operaor_seac): Fix numeric overflow.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=11915
2018-12-25 19:24:06 +01:00
Werner Lemberg ec439711b1 [gxvalid] Fix compiler warnings.
* src/gxvalid/gxvjust.c (gxv_just_check_max_gid),
src/gxvalid/gxvmort.c (gxv_mort_coverage_validate): Use `FT_UNUSED'.
2018-12-12 19:59:42 +01:00
Werner Lemberg 3e8a2283f5 * src/truetype/ttgload.c (TT_Hint_Glyph): Remove useless test.
`control_len' only gets its value from `n_ins' (and vice versa),
which is always read as `unsigned short' and thus can't be larger
than 0xFFFF.
2018-12-11 23:54:17 +01:00
Werner Lemberg f1b6183f36 [bdf] Ignore data after `ENDFONT'.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10798

* src/bdf/bdflib.c (_bdf_parse_end): New function.
(_bdf_parse_glyphs): Switch to `_bdf_parse_end' after `ENDFONT' has
been encountered.
2018-12-04 11:51:15 +01:00