Commit Graph

6744 Commits

Author SHA1 Message Date
Werner Lemberg
535b687e58 [truetype] Avoid code duplication.
* src/truetype/ttobjs.c (tt_size_run_prep): Scale CVT values in this
function.
(tt_size_ready_bytecode): Updated.
* src/truetype/ttgload.c (tt_loader_init): Updated.
2019-05-16 09:55:16 +02:00
Werner Lemberg
787db7c048 * vms_make.com: Updated. Handle `bzip2' directory, too. 2019-05-13 22:22:57 +02:00
Werner Lemberg
03f3f8ab9e * src/psaux/psfont.c (cf2_font_setup): Fix compiler warning. 2019-05-13 06:53:19 +02:00
Werner Lemberg
94ebc24865 [truetype] Doh. Fix last commit to make it work.
Very embarassing :-)

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14701
  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14705
  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14710

* src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): Move up and add
argument; update all callers.
(TT_Process_Simple_Glyph): Use it.  The `unrounded' array is active
for variation fonts only, thus also enclose related code with
`#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT ...  #endif' where
necessary.
Revert commit a113e5d from 2019-05-09, and don't use `extra_points2'
but allocate a temporary array.
Speed up the scaling of the `unrounded' array.

* src/truetype/ttgxvar.c (FT_fixedToInt, FT_FixedToFdot6): Fix type
conversions and rounding.  The unsigned type must have more or equal
bits to the signed type.
2019-05-13 06:34:33 +02:00
Werner Lemberg
1178227b39 [truetype] Increase precision of font variation (#54371).
This patch make FreeType use font units in 26.6 format internally
instead of integers.

* src/truetype/ttgxvar.c (FT_fixedToFdot6): New macro.
(TT_Vary_Apply_Glyph_Deltas): Add argument to output unrounded font
coordinates.
* src/truetype/ttgxvar.h: Updated.

* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Use
`extra_points2' array to temporarily hold unrounded point
coordinates; use them to compute scaled coordinates and linear
advance width and height.
(load_truetype_code): Adjust similarly.
2019-05-11 10:01:57 +02:00
Werner Lemberg
a113e5df0c * src/truetype/ttgload.c (TT_Process_Simple_Glyph): Minor. 2019-05-09 11:37:58 +02:00
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
Alexei Podtelezhnikov
432bb50ff5 Clarify docs. 2019-04-23 21:51:42 -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
d74106e233 Typo. 2019-04-19 07:07:01 +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
01aed76c68 Minor. 2019-04-14 09:39:28 +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
f0384d5fb0 Minor. 2019-04-09 11:01:24 +02:00
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
fdb10e8b50 Improve link. 2019-03-21 13:53:43 +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
Werner Lemberg
4e64d9d3da CHANGES: Minor fixes. 2019-03-08 00:13:08 +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
Nikhil Ramakrishnan
6d65c60fca Minor formatting. 2019-03-02 16:05:51 +05:30
Werner Lemberg
bf04c59249 Minor doc fixes. 2019-02-25 06:32:26 +01:00
Werner Lemberg
4d51f78de9 More documentation updates.
In particular, mark the new behaviour of `FT_LOAD_COLOR' as experimental.
2019-02-23 11:21:48 +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
b77826e139 Triage 8ea854bfe9. 2019-02-21 10:23:15 +00:00