This corresponds to the following commits in the ttfautohint git
repository:
bb6842bd3bd437b7b4a7921b0376c860f5e73d18 Typo, formatting.
d5c91ddb1cb310257a3dfe9a8e20e1fc51335faa Add Medefaidrin script.
* src/autofit/afblue.dat: Add blue zone data for Medefaidrin.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Medefaidrin standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Medefaidrin
data.
* include/freetype/internal/autohint.h
(FT_DECLARE_AUTOHINTER_INTERFACE): New macro.
* src/autofit/afmodule.h: Use it to declare
`af_autofitter_interface'.
* include/freetype/internal/ftobjs.h (FT_DECLARE_GLYPH): New macro.
* src/base/ftbase.h: Use it to declare `ft_bitmap_glyph_class' and
`ft_outline_glyph_class'.
* src/base/ftglyph.c: Include `ftbase.h'.
* src/cff/cffparse.c (cff_parser_run): Fix type of `t2_size'.
* src/pcf/pcfdrivr.c (pcf_cmap_char_next): Fix type of `result'.
* src/psaux/psauxmod.c (psaux_module_class): Use `FT_DEFINE_MODULE'.
* src/psaux/psauxmod.h: Declare `afm_parser_funcs',
`t1_cmap_classes', `cff_decoder_funcs', and `psaux_module_class'.
* src/pshinter/pshmod.c: Include `pshmod.h'.
* src/sfnt/sfwoff2.c (ROUND4, WRITE_SHORT): Fix implicit sign
conversion.
(compute_ULong_sum): Fix return type.
Fix implicit sign conversion.
(store_points): Fix type of `last_flag', `repeat_count', and `flag'.
Use casts to avoid warnings.
(reconstruct_glyf): Fix implicit sign conversion.
Use cast to avoid warning.
(get_x_mins): Fix implicit sign conversion.
* src/sfnt/ttcmap.c: Undef `TTCMAPCITEM'.
* src/sfnt/ttcmap.h: Define `TTCMAPCITEM' and include `ttcmapc.h' to
declare cmap classes.
* src/smooth/ftsmooth.c (ft_smooth_overlap_spans): Use cast.
* src/truetype/ttinterp.c (Ins_MIAP): Fix typo.
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.
These have not been used in a very, very long time, so better remove
them. A corresponding patch will be submitted to the
`freetype2-demos' repository.
* src/Jamfile, src/*/Jamfile, Jamrules: Delete.
* src/autofit/afglobal.c (af_face_global_get_metrics): Start again
(with dummy hinter module) if no blue zones are present.
* src/autofit/aflatin.c (af_latin_metrics_init_blues): Change
signature to return error code.
If no blue zones are found, update `glyph_styles' array to hold
AF_STYLE_NONE_DFLT instead of the current style.
(af_latin_metrics_init): Return internal error code if no blue zones
are found.
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.
* 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.
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.
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.
Before this commit we had code like
(FT_Bool)( globals->glyph_styles[gindex] & 0x8000)
Since `FT_Bool' is defined to be an `unsigned char', the code
evaluated to something like
(unsigned char)( 0x8532 & 0x8000)
which in turn expanded to
(unsigned char)( 0x8000)
and finally yielded 0x00 – i.e., false – not as expected.
Problem reported and analyzed by Tony Smith <tony.smith@macro4.com>.
* include/freetype/fttypes.h (FT_BOOL): Add a comparison against
zero so that we always have a Boolean expression.
*/*: Replace castings to `FT_Bool' with calls to `FT_BOOL' where
possible.
* src/autofit/afhints.h (AF_PointRec) [FT_DEBUG_AUTOFIT]: New arrays
`before' and `after'.
* src/autofit/afhints.c (af_get_strong_edge_index): New auxiliary
function.
(af_glyph_hints_dump_points): Trace `before' and `after' edges.
(af_glyph_hints_align_strong_points) [FT_DEBUG_AUTOFIT]: Set
`before' and `after' information.
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.
The declaration of `edge2' can be reached with `edge1 == NULL' and
`axis->edges == 0' which results in undefined behaviour.
* src/autofit/afloader.c (af_loader_load_glyph): Initialise `edge2'
after checking `axis->num_edges > 1'. `edge1 != NULL' can be assumed.
Problem reported by Shailesh Mistry <shailesh.mistry@hotmail.co.uk>.
* src/autofit/afshaper.c (af_shaper_buf_create,
af_shaper_buf_destroy) [!FT_CONFIG_OPTION_USE_HARFBUZZ]: Don't
allocate and free a four-byte buffer. Instead, make those functions
no-ops; the calling functions will provide a pointer to a buffer
instead.
* src/autofit/afcjk.c (af_cjk_metrics_init_widths,
af_cjk_metrics_init_blues, af_cjk_metrics_check_digits),
src/autofit/aflatin.c (af_latin_metrics_init_widths,
af_latin_metrics_init_blues, af_latin_metrics_check_digits)
[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Use pointer to local variable for
`shaper_buf'.
*/* [FT_CONFIG_OPTION_PIC]: Remove all code guarded by this
preprocessor symbol.
*/*: Replace `XXX_GET' macros (which could be either a function in
PIC mode or an array in non-PIC mode) with `xxx' arrays.
* include/freetype/internal/ftpic.h, src/autofit/afpic.c,
src/autofit/afpic.h, src/base/basepic.c, src/base/basepic.h,
src/base/ftpic.c, src/cff/cffpic.c, src/cff/cffpic.h,
src/pshinter/pshpic.c, src/pshinter/pshpic.h, src/psnames/pspic.c,
src/psnames/pspic.h, src/raster/rastpic.c, src/raster/rastpic.h,
src/sfnt/sfntpic.c, src/sfnt/sfntpic.h, src/smooth/ftspic.c,
src/smooth/ftspic.h, src/truetype/ttpic.c, src/truetype/ttpic.h:
Removed.
This will be part of the forthcoming Unicode 11.0.
* src/autofit/afblue.dat: Add blue zone data for Mtavruli.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Mtavruli standard character.
But no support new scripts (volunteers welcomed).
* src/autofit/afranges.c (af_arab_nonbase_uniranges,
af_beng_nonbase_uniranges, af_cakm_nonbase_uniranges,
af_deva_nonbase_uniranges, af_geor_uniranges,
af_gujr_nonbase_uniranges, af_mlym_nonbase_uniranges,
af_nkoo_nonbase_uniranges, af_telu_nonbase_uniranges,
af_hani_uniranges): Add new data.
This reduces redundancy and increases synergy; it also reduces the
number of header files.
* include/freetype/config/ftheader.h (FT_DRIVER_H): New macro.
(FT_AUTOHINTER_H, FT_CFF_DRIVER_H, FT_TRUETYPE_DRIVER_H,
FT_PCF_DRIVER_H, FT_TYPE1_DRIVER_H): Make them aliases to
FT_DRIVER_H.
* include/freetype/ftautoh.h, include/freetype/ftcffdrv.h,
include/freetype/ftpcfdrv.h, include/freetype/ftt1drv.h,
include/freetype/ftttdrv.h: Replaced with...
* include/freetype/ftdriver.h: ...this new file.
(FT_CFF_HINTING_ADOBE, FT_T1_HINTING_ADOBE): Renamed to...
(FT_HINTING_ADOBE): ... this new macro.
(FT_CFF_HINTING_FREETYPE, FT_T1_HINTING_FREETYPE): Renamed to...
(FT_HINTING_FREETYPE): ... this new macro.
* src/*/*: Updated accordingly.
In runs on Noto Naskh Arabic, this results in 89 sets created
instead of 340 before. Makes auto-hinter setup with HarfBuzz
enabled 20% to 30% faster.
* src/autofit/afshaper.c (af_shaper_get_coverage): Implement it.
* src/autofit/afshaper.c: Include FT_ADVANCE_H, to use
FT_Get_Advance() in it.
* src/sfnt/ttcmap.c: Include FT_SERVICE_POSTSCRIPT_CMAPS_H
to use PS_Unicodes in it, also include `ttpost.h' to use
tt_face_get_ps_name() in it.
This moves warping option from LIGHT to NORMAL mode. This makes LIGHT
truly void of hinting in x-direction, with left side bearing never
changed and right side bearing only altered by advance rounding.
Therefore, LIGHT is now ready to return fractional advance. As a
NORMAL option, warping substitutes normal hinting.
* src/autofit/afcjk.c (af_cjk_hints_apply): Updated.
* src/autofit/aflatin.c (af_latin_hints_apply): Updated.
* src/autofit/aflatin2.c (af_latin2_hints_apply): Updated.
* src/autofit/afloader.c (af_loader_load_glyph): Handle warping
phantom points as normal.
* src/autofit/afblue.dat: Add blue zone data for Chakma.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Chakma standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Chakma data.
* src/autofit/afblue.dat: Add blue zone data for Kayah Li.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Kayah Li standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Kayah Li data.
* src/autofit/afblue.dat: Add blue zone data for Bamum.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Bamum standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Bamum data.
* src/autofit/afblue.dat: Add blue zone data for Saurashtra.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Saurashtra standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Saurashtra
data.
* src/autofit/afblue.dat: Add blue zone data for Buhid.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Buhid standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Buhid data.
* src/autofit/afblue.dat: Add blue zone data for Shavian.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Shavian standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Shavian data.
* src/autofit/afblue.dat: Add blue zone data for Vai.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Vai standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Vai data.
* src/autofit/afblue.dat: Add blue zone data for Osmanya.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Osmanya standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Osmanya data.
* src/autofit/afblue.dat: Add blue zone data for Coptic.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Coptic standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Coptic data.
* src/autofit/afblue.dat: Add blue zone data for Carian.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Carian standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Carian data.
* src/autofit/afblue.dat: Add blue zone data for Unified Canadian
Syllabics.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Unified Canadian Syllabics standard
character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Unified
Canadian Syllabics data.
This essentially moves the Sundanese script from the `Indic' hinter
to the `Latin' hinter.
* src/autofit/afblue.dat: Add blue zone data for Sundanese.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Sundanese standard character and move
data out of AF_CONFIG_OPTION_INDIC block.
* src/autofit/afranges.c: Move Sundanese data out of
AF_CONFIG_OPTION_INDIC block.
* src/autofit/afstyles.h: Update Sundanese data; in particular, use
AF_WRITING_SYSTEM_LATIN.
* src/autofit/afblue.dat: Add blue zone data for Avestan.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Avestan standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Avestan data.
* include/freetype/config/ftoption.h
(AF_CONFIG_OPTION_TT_SIZE_METRICS): New option, commented out by
default.
* src/autofit/afloader.c (af_loader_load_glyph): Use
AF_CONFIG_OPTION_TT_SIZE_METRICS to guard the corresponding code.
This mode uses fractional advance widths and doesn't scale glyphs
horizontally, only applying vertical scaling and hinting.
At the same time, the behaviour of the `light' auto-hinter gets
restored for backwards compatibility: Both vertical and horizontal
scaling is again based on rounded metrics values (this was changed
in a commit from 2017-03-30 as a side effect). To be more precise,
the behaviour is restored for TrueType fonts only; for other font
formats like Type 1, this is a new feature of the `light' hinting
mode.
* include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT): New macro.
(FT_RENDER_MODE_SLIGHT): New render mode.
* include/freetype/internal/ftobjs.h (FT_Size_InternalRec): Add
`autohint_mode' and `autohint_metrics' fields.
* src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c
(af_latin_hints_init), src/autofit/aflatin2 (af_latin2_hints_init):
Updated.
* src/autofit/afloader.c (af_loader_embolden_glyph_in_slot): Use
`autohint_metrics'.
(af_loader_load_glyph): s/internal/slot_internal/.
Initialize `autohint_metrics' and `autohint_mode' depending on
current auto-hint mode.
Use `autohint_metrics'.
Updated.
* src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Updated.
* src/base/ftobjs.c (FT_Load_Glyph): Updated.
(FT_New_Size): Allocate `internal' object.
* src/pshinter/pshalgo.c (ps_hints_apply): Updated.
* src/smooth/ftsmooth.c (ft_smooth_render): Updated.
* src/autofit/afblue.dat: Add blue zone data for Old Turkic.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Old Turkic standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Old Turkic data.
* src/autofit/afblue.dat: Add blue zone data for Gothic.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Gothic standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Gothic data.
* src/autofit/afblue.dat: Add blue zone data for Cypriot.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Cypriot standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Cypriot data.
* src/autofit/afblue.dat: Add blue zone data for Deseret.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Deseret standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Deseret data.
* src/autofit/afblue.dat: Add blue zone data for Lisu.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Lisu standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Lisu data.
* src/autofit/afblue.dat: Add blue zone data for Osage.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Osage standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Osage data.
* src/autofit/afblue.dat: Add blue zone data for Glagolitic.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Glagolitic standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Glagolitic data.
* src/autofit/afblue.dat: Add blue zone data for Tai Viet.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Tai Viet standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Tai Viet data.
* src/autofit/afblue.dat: Add blue zone data for Tifinagh.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Tifinagh standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Tifinagh data.
* src/autofit/afblue.dat: Add blue zone data for N'Ko.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add N'Ko standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add N'Ko data.
* src/autofit/afblue.dat: Add blue zone data for Adlam.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Adlam standard characters.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Adlam data.
* src/autofit/afblue.dat: Add blue zone data for Ol Chiki.
* src/autofit/afblue.c, src/autofit/afblue.h: Regenerated.
* src/autofit/afscript.h: Add Ol Chiki standard character.
* src/autofit/afranges.c, src/autofit/afstyles.h: Add Ol Chiki data.
* src/autofit/afcjk.c, src/autofit/afindic.c: Include `afcjk.h'
earlier.
* src/sfnt/sfobjs.c (sfnt_init_face): Put `memory' variable into
TT_CONFIG_OPTION_GX_VAR_SUPPORT block.
(sfnt_done_face): Protect some code with
TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* src/sfnt/ttsbit.c (tt_face_load_sbix_image): Remove compiler
warning.
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Put `tmp' variable
into TT_USE_BYTECODE_INTERPRETER block.
(tt_loader_init): Put `error' variable into
TT_USE_BYTECODE_INTERPRETER block.
Problem reported as
https://github.com/google/fonts/issues/632
The font in question (Nunito) has values 705 and 713 for the
reference and overshoot values, respectively, of the first blue
zone. Blue zone 2, however, has value 710 for both the reference
and overshoot. At 12ppem, reference and overshoot of blue zone 0
becomes 8px, while blue zone 2 becomes 9px.
A peculiarity of this font is that the tops of isolated vertical
stems like `N' have a slight overshoot also. The auto-hinter tries
to find the nearest blue zone using the *original* coordinates. For
vertical stems, this is value 713. For normal horizontal tops like
in character `E', this is value 710. Since value 713 is mapped to
8px but value 710 to 9px, `N' and similar characters are one pixel
higher than `E', which looks very bad.
This commit sanitizes blue zones to avoid such a behaviour.
* src/autofit/aflatin.c (af_latin_sort_blue): New function.
(af_latin_metrics_init_blues): Sort blue values and remove overlaps.
The number of lowercase characters for computing the top flat blue
zone value was too small (in most cases only `x' and `z'). If one
of the two characters has a large serif, say, it can happen that
FreeType must select between two different values, having a 50%
chance to use the wrong one. As a result, rendering at larger PPEM
values could yield uneven lowercase glyph heights.
Problem reported by Christoph Koeberlin <christoph@koe.berlin>.
* src/autofit/afblue.dat (AF_BLUE_STRING_LATIN_SMALL): Replaced
with...
(AF_BLUE_STRING_LATIN_SMALL_TOP, AF_BLUE_STRING_LATIN_SMALL_BOTTOM):
... New, extended sets.
(AF_BLUE_STRINGSET_LATN): Updated.
* src/autofit/afblue.c, scr/autofit/afblue.h: Regenerated.
Function calls through pointers must use a matching signature to
work on Emscripten, since such calls are dispatched through lookup
tables grouped by signature.
* src/autofit/aftypes.h (AF_WritingSystem_ApplyHintsFunc): Fix
typedef.
Also improve some comments and remove unused code.
No functional change.
* src/autofit/afloader.c (af_loader_load_g): Merged with...
(af_loader_load_glyph): ...this function.
Split off emboldening code into...
(af_loader_embolden_glyph_in_slot): ... this function.
Werner Lemberg