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32cb5390
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2025-09-06T06:14:03
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Update all copyright notices.
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b04db387
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2025-07-04T19:52:53
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[sfnt] Rewrite GPOS kerning support. (2/2)
The previous code had a fundamental flaw: it didn't validate the necessary
parts of the 'GPOS' table before accessing it, causing crashes with
malformed data (since `TT_CONFIG_OPTION_GPOS_KERNING` is off by default,
standard fuzzers don't catch these problems). Additionally, it did a lot of
parsing while accessing kerning data, making it rather slow.
The new implementation fixes this. After validation, offsets to the 'GPOS'
lookup subtables used in the 'kern' feature that correspond to 'simple'
kerning (i.e., similar to 'kern' table kerning) are stored in `TT_Face`;
this greatly simplifies and accelerates access to the kerning data.
Testing with font `SF-Pro.ttf` version '1.00', the validation time for the
'GPOS' table increases the start-up time of `FT_New_Face` by less than 1%,
while calls to `FT_Get_Kerning` become about 3.5 times faster.
* include/freetype/internal (gpos_kerning_available): Replace with...
(gpos_lookups_kerning, num_gpos_lookups_kerning): ... these new fields.
Update callers.
* src/ttgpos.c [TT_CONFIG_OPTION_GPOS_KERNING]: A new implementation.
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fb6a7426
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2025-07-04T06:03:37
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* src/sfnt/ttkern.h (TT_FACE_HAS_KERNING): Remove macro.
Given that we also support (limited) 'GPOS' table kerning if
`TT_CONFIG_OPTION_GPOS_KERNING` is defined, the name of this macro is
misleading since it only is true for 'kern' table kerning.
* src/sfnt/sfobjs.c (sfn_load_face): Replace `TT_FACE_HAS_KERNING` with
plain code.
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47574f7e
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2024-01-27T11:11:22
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Update all copyright notices.
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65f85237
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2023-01-17T09:18:25
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Update all copyright notices.
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d0cfb4e1
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2022-01-11T10:54:10
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Update all copyright notices.
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b6e8a712
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2021-01-17T07:18:48
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Update all copyright notices.
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16586859
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2020-06-13T21:15:45
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Remove redundant inclusion of `ft2build.h'.
* */*: Remove `#include <ft2build.h>' where possible.
* include/freetype/freetype.h: Remove cpp error about missing
inclusion of `ft2build.h'.
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e1339133
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2020-06-08T13:31:55
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Make macros for header file names optional.
We no longer have to take care of the 8.3 file name limit; this
allows us (a) to introduce longer, meaningful file names, and (b) to
avoid macro names in `#include' lines altogether since some
compilers (most notably Visual C++) doesn't support this properly.
*/*: Replace
#include FOO_H
with
#include <freetype/foo.h>
or something similar. Also update the documentation.
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e5038be7
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2020-01-19T17:05:19
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Update all copyright notices.
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75859970
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2019-02-23T10:07:09
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Update all copyright notices.
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f686ad46
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2019-01-22T20:31:44
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Update copyright years.
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9ac9060d
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2018-06-03T09:01:17
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[GSoC] src/*.*: Convert block comments to `light' style.
This monster commit was created by applying Nikhil's scripts
`docconverter.py' and `markify.py' to all C header and source files,
followed up by minor manual clean-up.
No change in functionality, of course.
I used commit f7419907bc6044b9b7057f9789866426c804ba82 from
https://github.com/nikramakrishnan/freetype-docs.git.
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0a0c2256
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2018-01-02T09:33:57
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Update copyright year.
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563ae780
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2017-01-04T20:16:34
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Update copyright year.
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9adeab64
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2016-01-13T11:54:10
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Update copyright year.
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37412ff9
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2016-01-12T21:37:13
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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_'.
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f57fc59e
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2015-01-17T20:41:43
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Run `src/tools/update-copyright'.
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4ea0a7f0
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2007-01-05T09:03:31
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formatting, minor doc fixes, copyright years
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8a6c44e6
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2007-01-04T17:03:11
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Getting rid of the FT_OPTIMIZE_MEMORY macro, since the optimization
is no longer experimental
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e793092d
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2005-03-01T02:13:50
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Formatting.
* src/truetype/ttpload.c (tt_face_load_loca): Fix typo.
* src/sfnt/ttkern.c: Include `ttkern.h'.
(FT_COMPONENT): Updated.
* include/freetype/internal/fttrace.h: Add entry for `ttkern'.
* src/sfnt/ttsbit0.c: s/FT_Err_/SFNT_Err_/.
Decorate constants with `U' and `L' where necessary.
* src/sfnt/ttcmap.c (tt_cmap4_next): Remove unused variable.
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e5680279
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2005-02-26T00:12:04
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* many, many files: several memory optimizations were implemented to
drastically reduce the heap usage of FreeType, especially in the case
of memory-mapped files. The idea is to avoid loading and decoding tables
in the heap, and instead access the raw data whenever possible (i.e.
when it doesn't compromise performance).
This had several impacts: first, opening vera.ttf uses a ridiculous amount
of memory (when the FT_Library footprint is accounted for), until you start
loading glyphs. Even then, you'll save at least 20 Kb compared to the non
optimized case. performance of various operations, including open/close
has also been dramatically improved.
More optimisations to come. The auto-hinter eats memory like crazy? This
must be stopped...
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