Commit Graph

2008 Commits

Author SHA1 Message Date
Alexei Podtelezhnikov 68399b4244 * include/freetype/ftmm.h: Include `freetype.h`.
Reported by Ben Wagner, see !326.
2024-05-13 16:57:35 +00:00
Alexei Podtelezhnikov 4a85db7e31 [type1/MM] Tighten headers.
* include/freetype/internal/t1types.h: Host PS_DesignMap and PS_Blend.
* include/freetype/ftmm.h: Host and document TT_MAX_MM_XXX.
* include/freetype/t1tables.h: Remove them from here.
2024-05-11 22:19:25 -04:00
Ben Wagner a46424228f [psaux] Fix location and type order in initializer
`T1_FIELD_ZERO` is used to zero initialize a `T1_FieldRec`.
`T1_FIELD_ZERO` is currently initilizing `T1_FieldRec::location` with a
`T1_FieldType` and `T1_FieldRec::type` with a `T1_FieldLocation`. This
was detected with `-Wenum-conversion`.

* include/freetype/internal/psaux.h (T1_FIELD_ZERO): correct order of
initalizers
2024-05-08 11:36:18 -04:00
Alexei Podtelezhnikov 1264b84c08 * include/freetype/internal/psaux.h: Fix g++ warning.
Reported by Hin-Tak Leung.
2024-05-07 23:35:59 -04:00
Alexei Podtelezhnikov 4e079f6357 Document the SDF spread further. 2024-04-27 20:07:36 -04:00
Alexei Podtelezhnikov e2bcca40ca * include/freetype/ftdriver.h: s/truncated/clamped/. 2024-04-22 22:43:41 -04:00
Alexei Podtelezhnikov ec46a50dac Improve SDF documentation. 2024-04-22 21:21:12 -04:00
Alexei Podtelezhnikov 47574f7ea4 Update all copyright notices. 2024-01-27 11:11:22 -05:00
David Saltzman 8f286c86ef Add support for kerning from 'GPOS' tables.
This commit adds support for kerning from 'GPOS' tables, while maintaining
support for basic 'kern' tables.  `FT_HAS_KERNING` will be true for a font
with either available and `FT_Get_Kerning` will still use the basic 'kern'
table data if avilable, otherwise check the GPOS 'kern' feature.

This feature is disabled by default; it can be enabled with the
`TT_CONFIG_OPTION_GPOS_KERNING` flag.

Only basic kerning (pair positioning with just an x advance) is supported
from the GPOS layout features; support for that was added to make the
existing `FT_Get_Kerning` API more consistently functional.  FreeType does
not intend to extend itself to further GPOS functionality though; a
higher-level library like HarfBuzz can be used instead for that.

* include/freetype/config/ftoption.h, include/devel/ftoption.h
(TT_CONFIG_OPTION_GPOS_KERNING): New configuration option.

* include/freetype/internal/fttrace.h: Add `ttgpos` trace handler.

* include/freetype/internal/sfnt.h (SFNT_Interface): Add `load_gpos` and
`get_gpos_kerning` fields.
(FT_DEFINE_SFNT_INTERFACE): Updated.

* include/freetype/internal/tttypes.h: Include `fttypes.h`.
(TT_FaceRec) [TT_CONFIG_OPTION_GPOS_KERNING]: Add `gpos_table` and
`gpos_kerning_available` fields.

* src/sfnt/ttgpos.c, src/sfnt/ttgpos.h: New files.

* src/sfnt/sfdriver.c [TT_CONFIG_OPTION_GPOS_KERNING]: Include `ttgpos.h`.
(sfnt_interface): Updated.

* src/sfnt/sfnt.c: Include `ttgpos.c`.

* src/sfnt/sfobjs.c [TT_CONFIG_OPTION_GPOS_KERNING]: Include `ttgpos.h`.
(sfnt_load_face) [TT_CONFIG_OPTION_GPOS_KERNING]: Load and free GPOS kerning
data; check GPOS kerning availability.

* src/truetype/ttdriver.c (tt_get_kerning): Use GPOS kerning if there's no
'kern' table.
2024-01-27 10:55:04 +01:00
Skef Iterum 8eab511017 [CFF] Extract `BlueValues` as `Fixed` rather than `Int`.
This is a follow-up to commit 26a7f047,

  [cff] Make blend operator work with floats in private dicts.

which addressed the 'party baseline' bug.  However, the reporting user
indicated that the default location and some other points in design space
rendered OK, but other points in design space still had problems.  The most
obvious issue being that the x-heights of lower-case letters did not align;
see

  https://github.com/adobe-fonts/source-serif/issues/121#issuecomment-1773794136

After some analysis we determined that this was due to an interaction
between `BlueValue` rounding and the zone-based algorithm.  In short, for a
point to be considered in a zone it must fall within the bounds of the zone.
(There is a slop factor in some cases, but only a very small one.)  In the
Adobe-contributed side of the code, point values are not integer-rounded,
instead they're kept as (some form of) fixed.  Rounding just the `BlueValues`
means that points that need to be considered within a zone will fall outside
of it at some points in design space.

The majority of this patch changes the storage and parsing of `BlueValues`
to keep them as `FT_Fixed`.  No significant code changes were needed because
the values are converted to `Fixed` anyway when stored in `CF_BlueRec`.  No
attempt was made to address problems in the older pshinter code beyond
converting the values from `FT_Fixed` to `FT_Short` when copying the private
dictionary.  (However, as the point values are also rounded in that code,
the problem is much less likely to occur, although inconsistency between
rounding and truncation could cause an analogous problem.)

* include/freetype/internal/cfftypes.h (CFF_PrivateRec): Use `FT_Fixed` for
`blue_values`, `other_blues`, `family_blues`, and `family_other_blues`.

* src/cff/cffload.c (cff_blend_doBlend): Updated.

* src/cff/cffobjs.c (CFF_fixedToInt): New macro.
(cff_make_private_dict): Use it.

* src/cff/cffparse.h (cff_kind_delta_fixed): New enum value.

* src/cff/cffparse.c (do_fixed): Updated.
(CFF_FIELD_DELTA, CFF_FIELD_DELTA_FIXED, CFF_DELTA_KIND): New set of macros,
replacing `CFF_FIELD_DELTA`.
(cff_parser_run): Updated to handle fixed-float deltas.

* src/cff/cfftoken.h: Updated to use `CFF_FIELD_DELTA_FIXED` for blue
values.

* src/psaux/psblues.c (cf2_blueToFixed): Removed, no longer needed.
(cf2_blues_init): Updated.

* src/pxaux/psft.c, src/pxaux/psft.h (cf2_getBlueValues, cf2_getOtherBlues,
cf2_getFamilyBlues, cf2_getFamilyOtherBlues): Updated signatures.

* src/psaux/psobjs.c (t1_make_subfont): Updated.
2023-12-14 07:17:01 +01:00
Alexei Podtelezhnikov 0f98994ef6 * include/freetype/ftimage.h: Fix type and link. 2023-11-13 23:15:00 -05:00
Zachary Zollman 21435f07de fix typo in FT_Outline_Decompose note 2023-10-08 23:34:28 +00:00
Alexei Podtelezhnikov cc732ec6d1 * include/freetype/internal/ftcalc.h (FT_MSB): Define for Solaris 11. 2023-09-21 02:28:32 +00:00
Alexei Podtelezhnikov 95b0fe2a6d [base] Reintroduce `FT_SqrtFixed`.
The general square root calculations are not necessary in FreeType.
For vector normalization or length, FreeType uses special functions.
It is, however, required in the legacy CFF specifications.

* src/base/ftcalc.c (FT_SqrtFixed): New function that uses either
Babylonian or bit-wise algorithm, whichever is faster for the given
situation.
* include/freetype/internal/ftcalc.h (FT_SqrtFixed): Declare it.
2023-09-19 22:26:32 -04:00
Alexei Podtelezhnikov 6eb5f2be40 Update 2 files
- /src/base/ftcalc.c
- /include/freetype/internal/ftcalc.h
2023-09-13 17:02:31 +00:00
Alexei Podtelezhnikov 8d0897b37d [type1, cid, type42] Post-cleanup.
* include/freetype/internal/psaux.h (T1_FIELD_ZERO): Terminating macro.
* src/cid/cidload.c (cid_parse_dict): Use while-loop.
* src/type1/t1load.c (parse_dict): Ditto.
* src/type42/t42parse.c (t42_parse_dict): Ditto.
2023-09-09 22:20:00 -04:00
Alexei Podtelezhnikov 7ad9d57c3b [type1, cid, type42] Streamline dictionary parsing.
When matching the keywords, we avoid calculating their lengths by
checking the stored values. This itself is a sufficient pre-check
before diving into `memcmp`. Therefore, we remove explicit check of
the first characters.

* include/freetype/internal/psaux.h (T1_FieldRec): Store length.
* src/cid/cidload.c (cid_parse_dict): Use `memcmp` and stored length.
* src/type1/t1load.c (parse_dict): Ditto.
* src/type42/t42parse.c (t42_parse_dict): Ditto.
2023-09-09 15:19:06 -04:00
Werner Lemberg 920c5502cc * Version 2.13.2 released.
==========================

Tag sources with `VER-2-13-2'.

* docs/VERSION.TXT: Add entry for version 2.13.2.
* docs/CHANGES: Updated.
* docs/release, docs/README, builds/macs/README: Updated.

* README, src/base/ftver.rc, builds/windows/vc2010/index.html,
builds/windows/visualc/index.html, builds/windows/visualce/index.html,
builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/index.html,
docs/freetype-config.1: s/2.13.1/2.13.2/, s/2131/2132/.

* include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.

* builds/unix/configure.raw (version_info): Set to 26:1:20.
* CMakeLists.txt (VERSION_PATCH): Set to 2.
2023-08-25 20:12:52 +02:00
Alexei Podtelezhnikov 97251fd5aa [base] Improve the matrix degeneracy check.
Also fixes #1251.

* src/base/ftcalc.c (FT_Matrix_Check): To avoid overflow, scale by shifting.
* include/freetype/internal/ftcalc.h (FT_Matrix_Check): Update description.
2023-08-22 11:01:16 +00:00
Alexei Podtelezhnikov 1ecfd21990 [truetype] Remove Infinality for good (remaining bits).
* src/truetype/ttobjs.h: Remove remaining fields.
* src/truetype/ttinterp.c: Do not initialize them.
* include/freetype/internal/tttypes.h: Remove descriptions.
2023-07-27 16:12:28 +00:00
Alexei Podtelezhnikov 5b7e45ac34 [truetype] Remove Infinality for good.
Remove everything `#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY`,
which was undefined for a while now.

* include/freetype/internal/tttypes.h: Ditto.
* src/truetype/truetype.c: Ditto.
* src/truetype/ttdriver.c: Ditto.
* src/truetype/ttgload.c: Ditto.
* src/truetype/ttinterp.c: Ditto.
* src/truetype/ttinterp.h: Ditto.
* src/truetype/ttobjs.c: Ditto.
* src/truetype/ttsubpix.[ch]: Remove files.
* src/truetype/rules.mk: Don't mention "ttsubpix.c".
2023-07-27 15:06:38 +00:00
Werner Lemberg e4586d960f * Version 2.13.1 released.
==========================

Tag sources with `VER-2-13-1'.

* docs/VERSION.TXT: Add entry for version 2.13.1.
* docs/CHANGES: Updated.
* docs/release, docs/README, builds/macs/README: Updated.

* README, src/base/ftver.rc, builds/windows/vc2010/index.html,
builds/windows/visualc/index.html, builds/windows/visualce/index.html,
builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/index.html,
docs/freetype-config.1: s/2.13.0/2.13/1/, s/2130/2131/.

* include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.

* builds/unix/configure.raw (version_info): Set to 26:0:20.
* CMakeLists.txt (VERSION_PATCH): Set to 1.

* subprojects/libpng.wrap, subprojects/zlib.wrap, subprojects/dlg: Updated.
2023-06-24 08:11:05 +02:00
Ben Wagner 4e1c0e8fba Mark FT_Renderer_Class::raster_class as pointer to const
The `FT_DEFINE_RASTER_FUNCS` macro declares a `const FT_Raster_Funcs`.
The address of the definition is taken and assigned to
`FT_Renderer_Class::raster_class` which is currently `FT_Raster_Funcs*`.
Until recently the `const` was cast away and with the removal of the
cast there are now warnings about dropping this `const`. Instead of
adding back the casts, make `FT_Renderer_Class::raster_class` a pointer
to const, as is done with pointers in other interfaces.

* include/freetype/ftrender.h (FT_Renderer_Class_): mark `raster_class`
as const.
2023-06-05 12:06:24 -04:00
Ben Wagner 7bed7a02f4 Fix some `FT_Fixed` vs. `FT_Long` confusion.
`FT_Fixed` and `FT_Long` are both typedef'ed to be `signed long`.  However,
`FT_Fixed` implies that the lower 16 bits are being used to express
fractional values and so these two types should not be confused.

* include/freetype/internal/services/svmm.h (FT_Set_MM_Blend_Func): Use
`FT_Fixed` for `coords`.  Users are passing `FT_Fixed` and implementations
are taking `FT_Fixed`.
(FT_Get_MM_Blend_Func): Ditto.

* src/autofit/afcjk.c (af_cjk_metrics_check_digits): Use `FT_Long` for
`advance` and `old_advance`.  `advance`'s address is passed as `FT_Long*` to
`af_shaper_get_elem`, which writes the advance in em units (not fixed).  The
exact value is not important here as it is only compared to check whether it
has changed.

* src/autofit/aflatin.c (af_latin_metrics_check_digits): Ditto.
2023-06-03 07:02:12 +02:00
Werner Lemberg 80a507a6b8 Replace `sprintf` with `snprintf`.
Fixes #1233.

* include/freetype/config/ftstdlib.h (ft_sprintf): Replace with...
(ft_snprintf): This new macro.

* src/autofit/afhints.c (af_print_idx): Add argument to pass the buffer
size.
(af_glyph_hints_dump_points, af_glyph_hints_dump_segments,
af_glyph_hints_dump_edges): Updated.

* src/bdf/bdflib.c (BUFSIZE): New macro.
(bdf_parse_properties_, bdf_parse_start_): Use `ft_snprintf`.

* src/tools/ftrandom/ftrandom.c (do_test): Use `snprintf`.
2023-05-23 13:18:01 +02:00
Craig White 2342a03a9d Add missing end quote of a string in the example code of FT_Trace_Set_Level 2023-05-19 14:11:57 -04:00
Seigo Nonaka 115e927540 [truetype] Reduce heap allocation of `deltaSet` variation data.
`deltaSet` is an array of packed integers that can be 32 bits, 16 bits, or
8 bits.  Before this change, these values were unpacked to 32-bit integers.
However, this can cause big heap allocations, e.g., around 500 KByte for
'NotoSansCJK'.  To reduce this amount, store the packed integers and unpack
them just before passing to the calculation.  At calculation time, due to
the variable length of region indices, temporary heap allocations are
necessary.  This heap allocation is not negligible and visible in `ftbench`
results.  So, use stack-allocated arrays for short array calculations.

Fixes #1230.

* include/freetype/internal/ftmmtypes.h (GX_ItemVarDataRec): New fields
`wordDeltaCount` and `longWords`.

* src/truetype/ttgxvar.c (tt_var_load_item_variation_store): Load packed
data.
(tt_var_get_item_delta): Unpack data before applying.
2023-05-19 06:50:28 +02:00
Werner Lemberg 416d4c25f1 Add new load flag `FT_LOAD_NO_SVG`.
Modern color fonts often contain both an 'SVG' and 'COLR' table.  FreeType
always preferred 'SVG' over 'COLR' (this was a design decision), however,
this might not be the right choice for the user.  The new flags makes
FreeType ignore the 'SVG' table while loading a glyph.

Fixes #1229.

* include/freetype/freetype.h (FT_LOAD_NO_SVG): New macro.

* src/base/ftobjs.c (FT_Load_Glyph), src/cff/cffgload.c (cff_slot_load),
src/truetype/ttgload.c (TT_Load_Glyph): Use it.
2023-05-15 16:04:15 +02:00
Werner Lemberg 3af4772d68 * include/freetype/ftcache.h: Typo, punctuation. 2023-05-12 05:59:00 +02:00
Alexei Podtelezhnikov b07ab47b2a * include/freetype/ftcache.h: Formatted and updated. 2023-05-11 23:23:52 -04:00
suzuki toshiya 7132f5b0d1 * include/freetype/internal/t1types.h: Fix the indentation. 2023-05-12 09:49:58 +09:00
Werner Lemberg 8fe50c2adc [truetype] Fix style name handling for variation fonts.
* include/freetype/internal/tttypes.h (TT_FaceRec): New field
`non_var_style_name`.

* src/sfnt/sfobjs.c (sfnt_load_face): Initialize `non_var_style_name`.
(sfnt_done_face): Free `non_var_style_name`.

* src/truetype/ttgxvar.c (TT_Set_Named_Instance): Restore non-VF style name
if switching back to non-VF mode.
2023-05-06 18:53:50 +02:00
Werner Lemberg c8a24209d3 [truetype] Fix PostScript name handling for variation fonts.
A variation font's PostScript name of a named instance is usually different
from the PostScript name of an unnamed instance.  However, if a change
between a named instance and an unnamed instance with exactly the same
design axis values happened, it was possible that the PostScript name wasn't
correctly updated.

This commit reorganizes the code to handle this issue within the top-level
API functions, using a new service to trigger recomputation of the
PostScript name.

* include/freetype/internal/services/svmm.h (FT_Construct_PS_Name_Func): New
typedef.
(FT_Service_MultiMasters): New field `construct_ps_name`.
(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.

* src/base/ftmm.c (FT_Set_Var_Design_Coordinates,
FT_Set_MM_Blend_Coordinates, FT_Set_Var_Blend_Coordinates): Call
`mm->construct_ps_name` to handle `postscript_name`.
(FT_Set_Named_Instance): Call `mm->construct_ps_name` to handle
`postscript_name`.
Use shortcut.
* src/cff/cffdrivr.c (cff_construct_ps_name): New function.
(cff_service_multi_masters): Updated.

* src/truetype/ttgxvar.c (tt_set_mm_blend): Don't handle `postscript_name`.
(TT_Set_MM_Blend): Simplify.
(TT_Set_Named_Instance): Return -1 if axis values haven't changed.
Don't set `face_index`.
(tt_construct_ps_name): New function.

* src/truetype/ttgxvar.h: Updated.

* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.

* src/type1/t1driver.c (t1_service_multi_masters): Updated.

* src/type1/t1load.c (T1_Set_MM_Blend): Simplify.
2023-05-06 18:53:50 +02:00
Werner Lemberg 7af8fd0063 * include/freetype/internal/services/svmm.h: Minor changes. 2023-05-06 18:53:50 +02:00
Werner Lemberg 6713b1e41a [truetype] Fix deactivation of variation font handling.
According to the documentation, the functions `FT_Set_Named_Instance`,
`FT_Set_MM_Design_Coordinates`, `FT_Set_Var_Design_Coordinates`, and
`FT_Set_Var_Blend_Coordinates` can unset the `FT_FACE_FLAG_VARIATION` flag.
(The same is true for `FT_Set_MM_WeightVector` but this information was
accidentally omitted from the documentation.)

However, if a call of these functions didn't change the axis values this
could fail because internal shortcuts exited too early.

This commit reorganizes the code to handle `FT_FACE_FLAG_VARIATION` in the
top-level API functions, also taking care of the issue at hand.

* src/base/ftmm.c (FT_Set_MM_Design_Coordinates, FT_Set_MM_WeightVector,
FT_Set_Var_Design_Coordinates, FT_Set_MM_Blend_Coordinates,
FT_Set_Var_Blend_Coordinates): Handle `FT_FACE_FLAG_VARIATION`.

* src/truetype/ttgxvar.c (TT_Set_MM_Blend, TT_Set_Var_Design,
TT_Set_Named_Instance) Don't handle `FT_FACE_FLAG_VARIATION`.

* src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_WeightVector,
T1_Set_MM_Design): Ditto.

* src/cff/cffobjs.c (cff_face_init): Use `FT_Set_Named_Instance` instead of
low-level functions.

* src/truetype/ttobjs.c (tt_face_init): Ditto.
2023-05-06 18:53:50 +02:00
Werner Lemberg fdcb14a2ee s/set_instance/set_named_instance/
* include/freetype/internal/services/svmm.h (FT_Set_Instance_Func): Renamed
to...
(FT_Set_Named_Instance_Func): ...this.
(FT_Service_MultiMasters): Rename `set_instance` to `set_named_instance`.
(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.

* src/base/ftmm.c (FT_Set_Named_Instance): Updated.

* src/cff/cffdrivr.c (cff_set_instance): Renamed to...
(cff_set_named_instance): ...this.
(cff_service_multi_masters): Updated.
* src/cff/cffobjs.c (cff_face_init): Updated.

* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.

* src/type1/t1driver.c (t1_service_multi_masters): Updated.
2023-05-06 18:53:50 +02:00
Werner Lemberg fb982e78a7 New Variation Font function `FT_Get_Default_Named_Instance`.
* include/freetype/ftmm.h, src/base/ftmm.c (FT_Get_Default_Named_Instance):
New function.

* include/freetype/internal/services/svmm.h
(FT_Get_Default_Named_Instance_Func): New typedef.
(FT_Service_MultiMasters): New field `get_default_named_instance`.
(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.

* include/freetype/internal/tttypes.h (TT_Face): New field
`var_default_named_instance`.

* src/sfnt/sfobjc.s (sfnt_init_face): Initialize
`var_default_named_instance`.

* src/cff/cffdrivr.c (cff_get_default_named_instance): New function.
(cff_service_multi_masters): Updated.

* src/truetype/ttgxvar.c (TT_Get_MM_Var): Initialize
`var_default_named_instance`.
(TT_Get_Default_Named_Instance): New function.
* src/truetype/ttgxvar.h: Updated.
* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.

* src/type1/t1driver.c (t1_service_multi_masters): Updated.

* docs/CHANGES: Updated.
2023-05-06 18:53:50 +02:00
Werner Lemberg b5e57b041b [cid] Improve tracing messages; formatting. 2023-05-06 16:41:13 +02:00
Werner Lemberg 77bbfc5960 API documentation: Re-organize chapters and sections
* Split the very long 'Base Interface' section into smaller sections.
* Split the 'Core API' chapter into two chapters.
* Remove single enumeration values from `@order` fields since they have no
  effect.
2023-04-30 14:42:11 +00:00
Werner Lemberg 13df1c7d29 Minor documentation updates. 2023-04-28 06:39:32 +02:00
Werner Lemberg cfe54d6ac3 s/this is,/that is,/ 2023-04-27 06:24:48 +02:00
Werner Lemberg 0a3836c97d Improve/add source comments and documentation. 2023-04-25 11:47:18 +02:00
Ben Wagner 8154d8e2be [services] FT_Size_Reset_Func to return FT_Error
The `MetricsVariations` `FT_Size_Reset_Func` is currently defined to
return `void`, but the implementations return `FT_Error`. Even though
the pointers passed will be the same at runtime, calling a function
through a pointer of a different type from the original function pointer
type is undefined behavior. This may be caught at runtime by Control
Flow Integrity with something like clang's `cfi-icall`.

Issue: https://crbug.com/1433651

* include/freetype/internal/services/svmetric.h (FT_Size_Reset_Func):
return `FT_Error` instead of `void`.
2023-04-19 13:48:59 -04:00
Ben Wagner e78e2d29a9 [sfnt, truetype] Add `size_reset` to `MetricsVariations`.
This is a generalization of commit

```
commit e6699596af
Author: Werner Lemberg <wl@gnu.org>
Date:   Thu Feb 2 11:38:04 2017 +0100

    [truetype] Fix MVAR post-action handling.
```

It is also possible for plain `CFF ` style fonts to contain an `fvar` and
`MVAR` table and use `cff_metrics_adjust`.  `tt_size_reset` should only be
called with `TT_Size` and never with `CFF_Size`.

Allow the "metrics-variations" service to specify the correct function (if
any) to reset `FT_Size`s after adjusting metrics.

* src/truetype/ttobjs.c (tt_size_reset): Split off some functionality
into...
(tt_size_reset_height): ... this new function.

* src/truetype/ttdriver.c (tt_service_metrics_variations): Add
`size_reset`.
(tt_size_select, tt_size_request): Updated.

* src/truetype/ttobjs.h: Updated.

* include/freetype/internal/services/svmetric.h (MetricsVariations): Add
`size_reset`.
(FT_DEFINE_SERVICE_METRICSVARIATIONSREC): Updated.

* include/freetype/internal/tttypes.h (TT_FaceRec_): Rename `var` to
`tt_var` and add `face_var`.

* src/cff/cffdrivr.c (cff_service_metrics_variations): Add `size_reset`.
(cff_hadvance_adjust, cff_metrics_adjust): Updated.

* src/cff/cffobjs.c (cff_face_init): Use `face_var`.

* src/sfnt/sfobjs.c (sfnt_init_face): Initialize `face_var`.

* src/sfnt/ttmtx.c (tt_face_get_metrics): Use `tt_var`.

* src/truetype/ttgxvar.c (tt_size_reset_iterator): Renamed to...
(ft_size_reset_iterator): ... this new function.
Call `size_reset`.
(tt_apply_mvar): Pass `size_reset` to `ft_size_reset_iterator`.

Fixes #1211
2023-04-11 10:20:58 +02:00
Alexei Podtelezhnikov 1a4c18f7cb Align `char_next` return types.
This is mostly cosmetic because FT_UInt and FT_UInt32 are likely identical.

* src/sfnt/ttcmap.c, src/cff/cffcmap.c, src/psaux/t1cmap.c,
src/psnames/psmodule.c, include/freetype/internal/service/svpcsmap.h,
src/pfr/pfrcmap.c, src/winfonts/winfnt.c (*_char_next): return FT_UInt.
2023-04-10 15:30:43 +00:00
Alexei Podtelezhnikov 9597a62bac [sfnt] Consolidate POST version 2.0 and 2.5 (pt 1).
The deprecated POST version 2.5 can be handled using the data
structures of version 2.0.  The goal is to reduce the footprint.

* include/freetype/internal/tttypes.h (TT_Post_Names): Absorb and...
(TT_Post_20, TT_Post_25): ... remove these structures.
src/sfnt/ttpost.c (load_post_names, tt_face_get_ps_name,
tt_face_free_ps_names, load_format_20): Updated accordingly.
(load_format_25): ditto and convert offsets to glyph indices.
2023-04-01 22:34:30 -04:00
Alexei Podtelezhnikov 4679fcb666 [sfnt] Streamline POST format 2.0 handing (cont'd).
* src/sfnt/ttpost.c (load_format_20): Co-allocate the string data and
their pointers, which makes it easier to handle and free them.
(tt_face_free_ps_names): Updated.
* include/freetype/internal/tttypes.h (TT_Post_20): Update type.
2023-03-29 00:21:00 -04:00
Werner Lemberg 7be364c6a2 * include/freetype/ftsystem.h (FT_Stream_IoFunc): Improve documentation.
Fixes #1208.
2023-03-16 05:26:48 +01:00
Alexei Podtelezhnikov dd78d4a774 * src/base/ftsynth.c (FT_GlyphSlot_AdjustWeight): New API. 2023-03-16 03:28:59 +00:00
Werner Lemberg d874ffa96c * include/freetype/internal/compiler-macros.h (FALL_THROUGH): Update.
This follows

  https://lists.gnu.org/archive/html/bug-gnulib/2023-02/msg00200.html
2023-03-01 06:36:59 +01:00