|
2fb8eda5
|
2023-06-01T19:38:36
|
|
*/*: Remove many function pointer casts.
In C it is undefined behavior to call a function through a function pointer
of a different type. This is now detected by the Control Flow Integrity
Sanitizer. All known issues have already been fixed. Prevent any
accidental re-introduction by removing function pointer casts when defining
services. The services will call the service functions through the function
pointers on the service. As a result the functions must have the same type
so there should be no need to cast. Removing the casts allows compilers to
warn about assignment to an incompatible function pointer type.
|
|
b641b607
|
2023-06-03T06:09:30
|
|
Minor formatting.
|
|
115e9275
|
2023-05-19T12:11:45
|
|
[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.
|
|
|
416d4c25
|
2023-05-15T15:44:36
|
|
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.
|
|
|
95d635ea
|
2023-05-07T08:34:32
|
|
[truetype] Signature fixes.
|
|
|
3a85bf0b
|
2023-05-07T06:43:21
|
|
* src/truetype/*: Clean up interface.
Ensure that all driver functions use the signature of the service or driver.
This avoids pointer mismatches, which are technically undefined behaviour.
Recent compilers are more picky in catching them as part of Control Flow
Integrity tests.
|
|
|
8fe50c2a
|
2023-04-27T23:06:51
|
|
[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.
|
|
|
c8a24209
|
2023-04-27T11:40:46
|
|
[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.
|
|
|
6713b1e4
|
2023-04-26T12:03:04
|
|
[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.
|
|
|
fdcb14a2
|
2023-04-27T06:18:38
|
|
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.
|
|
|
fb982e78
|
2023-04-26T08:17:17
|
|
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.
|
|
|
13df1c7d
|
2023-04-26T13:17:36
|
|
Minor documentation updates.
|
|
|
9a3d05d9
|
2023-04-26T19:00:05
|
|
* src/ttgxvar.c: Minor changes.
(TT_Get_MM_Var): Improve tracing messages.
(tt_set_mm_blend): Minor speed-up.
|
|
|
cfe54d6a
|
2023-04-26T13:15:57
|
|
s/this is,/that is,/
|
|
9806414c
|
2023-04-24T13:36:30
|
|
[truetype] Fix `make multi'.
* src/truetype/ttgxvar.c: Include freetype/internal/services/svmetric.h
for the FT_Service_MetricsVariations type definition.
|
|
c4fe77c3
|
2023-04-17T11:17:16
|
|
[truetype] tt_size_reset_height to take FT_Size
The `MetricsVariations` `FT_Size_Reset_Func` is defined to take an
`FT_Size`. Because `tt_size_reset_height` is to be used as such a
function, it must also take an `FT_Size` instead of a `TT_Size`. 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
* src/truetype/ttobjs.h (tt_size_reset_height): take `FT_Size`
* src/truetype/ttobjs.c (tt_size_reset_height): take `FT_Size` and
update documentation
|
|
|
ea9fca0a
|
2023-04-13T06:34:32
|
|
* src/truetype/ttinterp.c: Remove outdated comments.
|
|
|
e78e2d29
|
2023-04-06T11:16:29
|
|
[sfnt, truetype] Add `size_reset` to `MetricsVariations`.
This is a generalization of commit
```
commit e6699596af5c5d6f0ae0ea06e19df87dce088df8
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
|
|
8fc6df10
|
2023-03-17T23:35:10
|
|
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Use for-loop.
Even though we never call `TT_Load_Simple_Glyph` with zero contours,
out of abundance of precaution, let's handle this case properly.
|
|
|
ef636696
|
2023-03-17T23:25:45
|
|
[truetype] Clean up zeroing and local variables.
* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Avoid zeroing.
(load_truetype_glyph): Avoid zeroing and clean local variables.
|
|
|
764bc8e4
|
2023-03-15T23:18:18
|
|
[truetype] Clean up glyph loading.
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Clean space checking.
(TT_Hint_Glyph): Don't copy the outline structure.
(TT_Process_Simple_Glyph): Cosmetic update.
|
|
|
e7164762
|
2023-03-15T18:48:27
|
|
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Clean up.
|
|
|
b9376065
|
2023-03-10T23:41:39
|
|
[truetype] Fix recent fallout in memory management.
* src/truetype/ttgload.c (TT_Process_Composite_Glyph,
TT_Load_Simple_Glyph): Clean up old instructions regardless of
new ones, postpone setting `control_len` and `control_data` until...
(TT_Load_Glyph): ... the exit from this function.
|
|
|
49c74ac0
|
2023-03-09T22:37:03
|
|
* src/truetype/ttgload.c (TT_Hint_Glyph): Mostly cosmetic update.
The number of instructions is now taken from the executed context.
Technically, this means that `control_len` and `control_data`
values are no longer _used_ internally but only expose them.
|
|
|
b3250f36
|
2023-03-06T23:53:42
|
|
* src/truetype/ttgload.c (TT_Process_Composite_Glyph): Fix leak too.
|
|
|
b36193d0
|
2023-03-06T22:41:17
|
|
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Triage memory leak.
This leak has been introduced in the previous commit and immediately
detected:
https://chromium-review.googlesource.com/c/chromium/src/+/4313202
|
|
|
de94e2cb
|
2023-02-26T08:07:08
|
|
[truetype] Simplify memory management.
Instead of using `Update_Max`, switch to regular FreeType memory
allocation macros, stop pre-allocating the glyph instruction arrays.
* src/truetype/ttgload.c (TT_Load_Simple_Glyph,
TT_Process_Composite_Glyph): Switch to regular memory allocation.
* src/truetype/ttinterp.c (Update_Max): Removed.
(TT_Load_Context): Reallocate stack and free old instructions.
(Modify_CVT_Check, Ins_WS): Switch to regular memory allocation.
* src/truetype/ttinterp.h (Update_Max): Removed.
|
|
|
638df2fe
|
2023-02-27T21:54:23
|
|
[truetype] Treat 38 as 40 without Infinality.
* include/freetype/ftdriver.h (TT_INTERPRETER_VERSION_38): Reinstate.
* src/truetype/ttdriver.c (tt_property_set): Fallback from 38 to 40.
|
|
|
d399657f
|
2023-02-26T20:18:54
|
|
* src/*: Replace leading underscores with trailing ones in dummy variables.
This is to avoid clang warnings.
|
|
|
be724c81
|
2023-02-07T22:24:53
|
|
For debugging, avoid implicit conversion from integer to double.
Otherwise we get zillions of clang 15 warnings.
* src/autofit/afcjk.c, src/autofit/afhints.c, src/autofit/aflatin.c,
src/base/ftobjs.c, src/base/ftoutln.c, src/cff/cffparse.c,
src/raster/ftraster.c, src/sfnt/pngshim.c, src/truetype/ttgload.c,
src/truetype/ttgxvar.c, src/truetype/ttobjs.c, src/type1/t1gload.c: Use
`double` cast in debugging and tracing macros.
|
|
|
37bc7c26
|
2023-02-07T07:37:07
|
|
Avoid reserved identifiers that are globally defined.
This is mandated by the C99 standard, and clang 15 produces zillions of
warnings otherwise.
* devel/ftoption.h, include/freetype/config/ftoption.h,
include/freetype/internal/ftmemory.h, src/autofit/afhints.h,
src/autofit/afmodule.c, src/autofit/aftypes.h, src/base/ftadvanc.c,
src/base/ftdbgmem.c, src/base/ftstream.c, src/bdf/bdflib.c,
src/truetype/ttinterp.c: Replace identifiers of the form `_foo` with `foo_`.
|
|
|
da9eb9c7
|
2023-02-07T07:01:36
|
|
Fix minor clang and clang++ warnings.
|
|
|
4c3916e9
|
2023-02-08T14:58:46
|
|
[truetype, type1] Additional variation tags.
Sync with
https://learn.microsoft.com/en-us/typography/opentype/spec/dvaraxisreg#registered-axis-tags
* src/truetype/ttgxvar.h (TTAG_ital): New tag.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Use it.
* src/type1/t1load.c (T1_Get_MM_Var): Handle 'slnt' and 'ital'.
|
|
|
9508811a
|
2023-02-01T12:01:58
|
|
* src/truetype/ttgxvar.c (tt_var_get_item_delta): Check `face->blend`.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55581
|
|
|
bacc48e6
|
2023-01-28T17:04:11
|
|
Whitespace.
|
|
bea675cd
|
2023-01-26T14:07:25
|
|
[ttgxvar] Fix crash in COLRv1.
This is a stopgap until issue #1202 is properly fixed.
* src/truetype/ttxgvar.c (tt_var_get_item_delta): Check `normalizedcoords`.
|
|
|
65f85237
|
2023-01-17T09:18:25
|
|
Update all copyright notices.
|
|
2692b321
|
2023-01-03T17:19:02
|
|
[sfnt] Remove temporary runtime flag for variable 'COLR' v1.
Fixes #1187.
* src/sfnt/ttcolr.c (top level, read_paint, tt_face_load_colr,
tt_face_free_colr, get_deltas_for_var_index_base,
tt_face_get_color_glyph_clipbox, tt_face_get_colorline_stops): Remove macro
definition `VARIABLE_COLRV1_ENABLED` and its usage.
* src/truetype/ttdriver.c (tt_property_set): Remove parsing of
'TEMPORARY-enable-variable-colrv1' property name.
* src/truetype/ttobjs.h (TT_DriverRec): Remove `enable_variable_colrv1`
flag.
|
|
|
3481b154
|
2023-01-05T21:07:26
|
|
[truetype] Reset cvt and storage in context load.
Currently the cvt and storage are saved and restored in `TT_RunIns`.
However, this is too granular as the cvt and storage area should be set to
the original cvt and storage area only when setting up the hinting context.
This allows for the cvt and storage area to be modified while parsing
multiple glyphs, as is the case with composite glyphs.
* src/truetype/ttinterp.h (TT_ExecContextRec): Remove `origCvt` and
`origStorage`.
* src/truetype/ttinterp.c (TT_RunIns): Don't save and restore the cvt and
storage area.
(Modify_CVT_Check, Ins_WS): Switch from "if in glyph and using original data
do copy on write" to "if in glyph and not using glyph specific data do copy
on write".
|
|
|
262b47ac
|
2023-01-05T15:24:25
|
|
[truetype] Keep variation store consistent.
`tt_var_load_item_variation_store` fills out a `GX_ItemVarStore`. While it
may return an error, the item store must be left in a consistent state so
that any use or destruction of the item store can properly use or free the
data in it. Before this change the counts from the font data were read
directly into the item store before the actual allocation of the arrays to
which they referred. There exist many opportunities between the time the
counts are read and the arrays are allocated to return early due to invalid
data. When this happened the item store claimed to have entires it actually
did not, leading to crashes later when it was used.
Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54449
* src/truetype/ttgxvar.c (tt_var_load_item_variation_store): Read the counts
into local variables and store them in the item store only after the related
arrays are actually created on the item store.
|
|
|
e6fda039
|
2022-11-14T19:18:19
|
|
* src/truetype/ttgxvar.c (tt_hvadvance_adjust): Integer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50462
|
|
|
ba4bd5b9
|
2022-11-07T10:52:33
|
|
Add `TT_CONFIG_OPTION_NO_BORING_EXPANSION` configuration macro.
This gives users a possibility to deactivate new features not (yet) in the
OpenType standard.
* include/freetype/config/ftoption.h, devel/ftoption.h
(TT_CONFIG_OPTION_NO_BORING_EXPANSION): New macro.
* src/truetype/ttgxvar.c (ft_var_load_avar): Use it to disable 'avar'
version 2.0 support.
|
|
|
e97cb9e8
|
2022-11-09T15:42:25
|
|
[truetype] Improve bounds checks for `ItemVariationStore`.
* src/truetype/ttgxvar.c (tt_hvadvance_adjust): Move bounds check ...
(tt_var_get_item_delta): ... to this function, because it is safer. For
example, the 'avar' table 2.0 codepath was not performing a bounds check at
all.
|
|
|
9be958ca
|
2022-11-09T15:41:34
|
|
[truetype] In `ItemVariationStore`, value 0xFFFF for `dataCount` is valid.
It corresponds to outer indices of 0 to 0xFFFE.
* src/truetype/ttgxvar.c (tt_var_load_item_variation_store): Remove invalid
code.
|
|
|
9154707f
|
2022-11-07T16:58:56
|
|
[truetype] Check avar_segment before access
* src/truetype/ttgxvar.c (tt_done_blend): check `avar_segment` before
accessing to free its `correspondence`.
Reported as:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53062
|
|
|
d38407f7
|
2022-11-07T15:11:37
|
|
[truetype] Restore behavior of ft_var_load_hvvar
* src/truetype/ttgcvar.c (ft_var_load_hvvar): restore previous behavior
In a previous change [0] the behavior of `ft_var_load_hvvar` was changed
to not load the item variation store if it was at offset 0, but not
return an error when this happened. This broke any users, like
`tt_hvadvance_adjust`, that rely on successful completion of
`ft_var_load_hvvar` to imply that returned table's `itemStore` had been
initialized. This lead such users to dereference NULL.
This change appears to have been unintentional and unrelated to the
actual avar2 changes. As a result, fix these NULL dereferences by
restoring the code to always attempt to initialize the `itemStore`.
[0] ae4eb996 "[truetype] Add support for `avar` table 2.0 format."
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53061
|
|
|
32cfab4b
|
2022-10-10T14:22:12
|
|
[build] fix for make multi
Fix "make multi" by MR !223
* include/freetype/internal/services/svmm.h: include ftmm.h to define FT_Get_MM_Func.
* src/truetype/ttgxvar.h: include ftmmtypes.h to use GX_AVarTable properly.
* src/base/ftmac.c: include ftdebug.h to use FT_THROW() properly.
|
|
|
ae4eb996
|
2022-07-23T13:49:27
|
|
[truetype] Add support for `avar` table 2.0 format.
See
https://github.com/harfbuzz/boring-expansion-spec/blob/main/avar2.md
for the specification.
Currently, this is implemented only in most recent OS versions on Apple
platforms and in the HarfBuzz library, but it is expected to be added to the
OpenType standard soon.
* src/truetype/ttgxvar.h (GX_AVarTableRec): New structure.
(GX_BlendRec): Use it to replace `avar_segment` with `avar_table`.
* src/truetype/ttgxvar.c (ft_var_load_avar): Load new table version.
(ft_var_to_normalized, tt_done_blend): Extend for new format.
(ft_var_load_hvvar, ft_var_to_design): Updated.
|
|
|
ffbbf3df
|
2022-10-21T15:55:30
|
|
* src/truetype/ttgload.c: Cosmetic changes.
|
|
|
1bfaca06
|
2022-10-21T07:18:06
|
|
[cff, truetype] Simplify SVG metrics scaling.
Use pre-calculated scaling factors. Also, the advance widths used
to be rounded, which was incorrect.
* src/cff/cffgload.c (cff_slot_load): Use `x_scale` and `y_scale`.
* src/truetype/ttgload.c (TT_Load_Glyph): Ditto.
|
|
|
c943d408
|
2022-10-18T11:41:00
|
|
Minor formatting.
|
|
90527092
|
2022-09-29T18:38:06
|
|
[truetype] Fix undefined pointer arithmetic.
* src/truetype/ttgxvar.c (tt_var_get_item_delta, ft_var_load_mvar): Use
`FT_OFFSET`.
|
|
|
8e68439a
|
2022-09-06T15:57:11
|
|
[truetype] Reject 'fvar' loading when `num_instances` is too small.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Reject retrieving master when
'fvar' values locally do not match with sanitized values from initialization
at `sfnt_init_face` time.
Reported as
https://bugs.chromium.org/p/chromium/issues/detail?id=1360295
|
|
|
a1017e26
|
2022-08-19T19:07:42
|
|
[sfnt] Don't require 'gvar' table to support variation fonts.
Fixes #1172.
* src/sfnt/sfobjs.c (sfnt_load_face): Tag font as Multiple Masters font if
`fvar` is present; do not require other tables to be present.
* src/truetype/ttgxvar.c (tt_set_mm_blend): Allow for a missing 'gvar' table
when setting variation coordinates. However, if a 'gvar' table is actually
present, do perform a sanity check and fail on malformedness.
(TT_Get_MM_Var): Don't assume 'fvar' needs 'gvar' or 'CFF2 tables in all
cases, which is an overly tight check.
|
|
|
de27955c
|
2022-07-01T06:33:50
|
|
Minor formatting.
|
|
|
dece9535
|
2022-06-29T11:48:53
|
|
[truetype] Perform variation store delta computation with 64-bit precision.
* include/freetype/internal/ftmmtypes.h (FT_ItemVarDelta): Make type
explicitly 32-bit.
* include/freetype/internal/services/svmm.h
(FT_Var_Get_Item_Delta_Func): Change return type to `FT_ItemVarDelta`
* truetype/ttgxvar.h (tt_var_get_item_delta): Change return type to
`FT_ItemVarDelta`.
* truetype/ttgxvar.c (tt_var_get_item_delta): Store scalars and deltas
to intermediate array, perform computation using new method
`FT_MulAddFix`.
|
|
|
9006ff7d
|
2022-06-21T17:10:56
|
|
* ttgload.c (TT_Process_Composite_Glyph): Fix a signedness warning.
|
|
|
4b6f92e6
|
2022-06-01T13:24:09
|
|
Proposal: Feature control for variable COLRv1
* include/freetype/ftdriver.h (variable-color-v1 property): Add documentation
for variable-colr-v1 property.
* src/truetype/ttdriver.c (tt_property_set): Ingest variable-control property
when called, set to enable_variable_colrv1 driver flag.
* src/truetype/ttobjs.h (TT_DriverRec): Add enable_variable_colrv1 flag.
|
|
|
47103b2f
|
2022-06-18T23:09:17
|
|
[truetype] Clean up phantom point accounting.
This formalizes that the phantom points appended in the outline
do not increase its point count, nor are they tagged or included
in any additional contours. Only their coordinates are stored.
They are counted in the glyph zone, however.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Infer `n_points`
from the outline size plus four phantom points.
* src/truetype/ttgxvar.h (TT_Vary_Apply_Glyph_Deltas): Remove this
argument.
* src/truetype/ttgload.c (tt_prepare_zone): Add phantom four.
(TT_Process_Simple_Glyph, load_truetype_glyph): Update all callers.
|
|
|
705f4161
|
2022-06-18T23:02:26
|
|
[truetype/GX] Clean up phantom point adjustment.
This moves phantom point and advance variation adjustment next to
calculations. The logic stays the same, HVAR and VVAR take priority.
* src/truetype/ttgload.c (load_truetype_glyph): Move it from here...
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): ... to here
and check for HVAR and VVAR presence outside the main loop.
|
|
|
d9b8a69e
|
2022-06-16T22:13:25
|
|
[truetype/GX] Fix an old typo.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Vertical
advance is measured along y-coordinate.
|
|
|
9c706dcc
|
2022-06-16T16:11:51
|
|
[truetype/GX] Clean up advance adjustment (Brrr).
* src/truetype/ttgload.c (load_truetype_glyph): Remove remaining code.
|
|
|
d6fc8c6b
|
2022-06-15T18:28:50
|
|
[truetype/GX] Clean up advance adjustment.
* src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph):
Move the advance adjustment from here...
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): ... to here and
simplify arguments.
* src/truetype/ttgxvar.h (TT_Vary_Apply_Glyph_Deltas): Update prototype
with fewer arguments.
|
|
|
b11074cf
|
2022-06-06T15:59:56
|
|
[svg] Set linear advances when loading SVG glyphs
* include/freetype/freetype.h (FT_GlyphSlotRec_): update doc
* src/cff/cffgload.c (cff_slot_load): do it
* src/truetype/ttgload.c (TT_Load_Glyph): do it
Fixes: #1156
|
|
|
7838c78f
|
2022-05-20T17:22:25
|
|
[truetype] Support reading 32bit/16bit VarStore deltas
* include/freetype/internal/ftmmtypes.h (FT_ItemVarDelta): Define type
to be used for delta arrays, upgrade to FT_long.
* src/truetype/ttgxvar.c: Adhere to long_words bit and read either
Short/Byte pairs or Long/Short pairs, as defined by spec. For better
readability, define macro for repetitive read code.
|
|
|
9aa99f22
|
2022-05-20T17:20:08
|
|
[truetype] Handle 0xFFFF special value inside delta retrieval function
* truetype/ttgxvar.c (tt_hvadvance_adjust, tt_apply_mvar,
tt_var_get_item_delta): Remove special 0xFFFF handling in favor of less
redundant handling inside the tt_var_get_item_delta function, as it is
equivalent to returning a 0 delta. Avoids code-duplication checking for
special value 0xFFFF.
|
|
|
a4c4566b
|
2022-05-19T06:30:47
|
|
[truetype, snft] Add service methods for `DeltaSetIdxMap` and `VarStore`.
This will be needed for 'COLR' v1 variation support.
* src/truetype/ttgxvar.h (GX_ItemVarData, GX_AxisCoords, GX_VarRegion,
GX_VarItemStore, GX_DeltaSetIdxMap): Move structures to...
* include/freetype/internal/ftmmtypes.h: ... this new file.
* include/freetype/internal/service/svmm.h (MultiMasters): Include
`ftmmtypes.h`.
(FT_Var_Load_Delta_Set_Idx_Map_Func, FT_Var_Load_Item_Var_Store_Func,
FT_Var_Get_Item_Delta_Func, FT_Var_Done_Item_Var_Store_Func,
FT_Var_Done_Delta_Set_Idx_Map_Func): New function typedefs.
(MultiMasters): Add them.
(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.
* src/cff/cffdrivr.c (cff_load_item_variation_store,
cff_load_delta_set_index_mapping, cff_get_item_delta,
cff_done_item_variation_store, cff_done_delta_set_index_map): New wrapper
methods calling into mm service.
(cff_service_multi_masters): Updated.
* src/truetype/ttgxvar.c (ft_var_load_item_variation_store,
ft_var_load_delta_set_index_mapping, ft_var_get_item_delta,
ft_var_done_item_variation_store, ft_var_done_delta_set_index_map): Renamed
to ...
(tt_var_load_item_variation_store, tt_var_load_delta_set_index_mapping,
tt_var_get_item_delta, tt_var_done_item_variation_store,
tt_var_done_delta_set_index_map): ... this for consistency.
Mark them as non-static.
* src/truetype/ttgxvar.h: Add corresponding prototypes.
* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.
* src/type1/t1driver.c (t1_service_multi_masters): Updated.
|
|
|
5f19f49c
|
2022-05-13T15:43:06
|
|
[truetype] Move deallocation of `DeltaSetIdxMap` into own function.
This is a preparation for handling `DeltaSetIdxMap` and `VarStore` as a
FreeType service.
* src/truetype/ttgxvar.c (ft_var_done_delta_set_index_map): New function.
(tt_done_blend): Use it.
|
|
|
5d49473f
|
2022-05-11T18:15:02
|
|
[truetype] Handle inner/outer index values 0xFFFF/0xFFFF.
This was introduced in OpenType 1.8.4.
* src/truetype/ttgxvar.c (ft_var_load_delta_set_index_mapping,
tt_hvadvance_adjust, ft_var_load_mvar, tt_apply_mvar): Handle special
inner/outer index values.
(ft_var_load_item_variation_store): Add test.
Fixes #1154.
|
|
|
581dd064
|
2022-04-25T08:03:08
|
|
[truetype] Reset IUP flags in `TT_RunIns`.
Fixes #1148 by moving the flag initialization back, partly reverting
7809007a and fd03dcc1. Initializing these flags elsewhere skips 'cvt'.
* src/truetype/ttinterp.c (TT_RunIns): Initialize the IUP flag here...
(TT_Run_Context): ... instead of here.
|
|
|
079a22da
|
2022-04-19T09:28:21
|
|
* src/truetype/ttgload.c (TT_Process_Simple_Glyph): Integer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46792
|
|
|
695d606a
|
2022-04-01T08:50:33
|
|
Whitespace.
|
|
|
d247c562
|
2022-03-31T18:54:15
|
|
[truetype] Use SUB_LONG for component offset.
* src/truetype/ttgload.c (TT_Process_Composite_Component): do it.
Bug: https://crbug.com/1309429
|
|
|
ac4c1ebf
|
2022-02-07T06:55:54
|
|
[truetype] Fix 'sbix' table handling.
* src/sfnt/ttsbit.c (tt_face_load_sbix_image): Correct calculation of
'metrics->horiBearingY'.
Set vertical metrics.
* src/sfnt/sfobjs.c (sfnt_load_face): Adjust setting of `FT_FACE_FLAG_SBIX`.
Handle metrics of fonts with 'sbix' table.
* src/truetype/ttgload.c (TT_Load_Glyph): For 'sbix' embedded bitmaps, apply
bbox offset and bearing values of the corresponding glyph in the 'glyf'
table if it exists and has a contour.
* src/truetype/ttobjs.c (tt_face_init): Handle font with 'sbix' table.
Fixes issue #998.
|
|
|
24db55ec
|
2022-02-05T09:06:39
|
|
Various minor doc fixes.
|
|
|
bee88864
|
2022-01-30T21:55:21
|
|
Clean-up - do not doubt FT_FREE.
* src/base/ftobjs.c (memory_stream_close): Do not reassign zero
after `FT_FREE`.
* src/sfnt/sfwoff.c (sfnt_stream_close): Ditto.
* src/sfnt/sfwoff2.c (stream_close): Ditto.
* src/psaux/psobjs.c (ps_parser_load_field): Ditto.
* src/truetype/ttgxvar.c (ft_var_load_avar, tt_set_mm_blend,
tt_set_mm_blend): Ditto.
|
|
|
b34741c1
|
2022-01-27T22:55:34
|
|
Minor clean-ups.
* src/base/ftrfork.c (raccess_make_file_name): Do not set error.
* src/sfnt/sfdriver.c (get_win_string, get_apple_string): Ditto.
* src/cff/cffobjs.c (cff_strcpy): Do not confuse about error.
* src/psaux/psobjs.c (ps_table_done): Ditto.
* src/truetype/ttgxvar.c (ft_var_readpacked*, ft_var_load_avar): Ditto.
|
|
5cf01aa2
|
2021-12-25T19:46:46
|
|
[truetype, cff] Add code to load SVG document.
* src/cff/cffgload.c (cff_slot_load): Add code to load SVG doc.
* src/truetype/ttgload.c (TT_Load_Glyph): Add code to load SVG doc.
|
|
|
d0cfb4e1
|
2022-01-11T10:54:10
|
|
Update all copyright notices.
|
|
|
afb4ca01
|
2022-01-06T12:54:15
|
|
[truetype] Reset localpoints when varying cvt.
When iterating over the cvt tuples and reading in the points it is necessary
to set all of `localpoints`, `points`, and `point_count` in all cases. The
existing code did not reset `localpoints` to `NULL` when there were no
private point numbers. If the previous tuple did have private point numbers
and set `localpoints` to `ALL_POINTS` this would not be cleared and the
wrong branch would be taken later, leading to possible heap buffer overflow.
* src/truetype/ttgxvar.c (tt_face_vary_cvt): Reset `localpoints` to `NULL`
when it isn't valid.
Fixes: https://crbug.com/1284742
|
|
|
0da2a115
|
2021-12-13T11:44:24
|
|
[truetype] Upstream the hdmx binary search.
* src/truetype/ttobjs.h (TT_SizeRec): Add `widthp` for the hdmx
widths.
* src/truetype/ttobjs.c (tt_size_reset): Initialize `widthp` even
though it might never be used by the interpreter.
* src/truetype/ttgload.c (tt_loader_init): Avoid repeated searches
in the hdmx table.
|
|
|
fd03dcc1
|
2021-12-12T12:29:04
|
|
[truetype] Reset the IUP-called flags for each subglyph.
This fixes fall-out from 7809007a5b88b15, where the composite
accents were no longer hinted.
* src/truetype/ttgload.c (ttloader_init): Move the IUP-called flag
initialization from here...
* src/truetype/ttinterp.c (TT_Run_Context): ... to here.
|
|
|
7add5b2b
|
2021-12-11T22:54:06
|
|
[truetype] Binary search through the `hdmx` records.
The `hdmx` table is supposed to be sorted by ppem size, which
enables binary search. We also drop the check for the sufficient
length of the record because it is now enforced when the table
is loaded.
* include/freetype/internal/tttypes.h (TT_FaceRec): Store the `hdmx`
record pointers sorted by ppem instead of ppem's themselves.
* src/truetype/ttpload.c (tt_face_load_hdmx): Prudently sort records.
(tt_face_get_device_metrics): Implement binary search to retrieve
advances.
|
|
|
a8ef33e3
|
2021-12-11T22:42:46
|
|
[truetype] Honor FT_LOAD_ADVANCE_ONLY if `hdmx` is usable.
This simply shortcuts the glyph loading if FT_LOAD_ADVANCE_ONLY
is specified by FT_Get_Advances and the `hdmx` data are located.
Particularly, the classic v35 interpreter or "verified" ClearType
fonts might see 100x speed up in retrieving the hdmx cache.
* src/truetype/ttgload.c (TT_Load_Glyph): Insert the shortcut.
|
|
|
6c831d65
|
2021-12-11T22:34:27
|
|
[truetype] Initialize the loader with `hdmx` data.
The `hdmx` matching can be done before the glyph is loaded.
* include/freetype/internal/tttypes.h (TT_LoaderRec): Add a field.
* src/truetype/ttgload.c (compute_glyph_metrics): Relocate the `hdmx`
code from here...
(tt_loader_init): ... to here, before the glyph is loaded.
|
|
|
7809007a
|
2021-12-11T22:22:57
|
|
[truetype] Relocate subpixel flag setting.
`TT_RunIns` is too busy to deal with subpixel flags. It is better
to set them in `tt_loader_init`, which is executed before each
glyph program.
* src/truetype/ttinterp.c (TT_RunIns): Move the flag setting from
here...
* src/truetype/ttgload.c (tt_loader_init): ... to here.
|
|
|
a35b081e
|
2021-12-11T22:12:25
|
|
[truetype] Limit INSTCTRL appication within specs.
* src/truetype/ttinterp.c (Ins_INSTCTRL): Limit its global effects
to the CVT program and local effects to the glyph program.
This also fixes an Infinality buglet. The `ignore_x_mode` should be
locally unset by the glyph program.
|
|
|
012b00f3
|
2021-12-07T10:19:06
|
|
[truetype] Reduce Infinality footprint again.
* src/truetype/ttgload.c (compute_glyph_metrics): Streamline and
prioritize the Infinality checks to use `hdmx`.
|
|
|
36a905e1
|
2021-11-26T09:15:46
|
|
* src/truetype/ttpload.c (tt_face_load_hdmx): Added comments.
|
|
|
32f13c11
|
2021-11-25T22:38:40
|
|
[truetype] Quietly reject out-of-spec `hdmx` tables.
The `hdmx` table is optional and can be safely rejected without
an error if it does not follow specifications. The record size
must be equal to the number of glyphs + 2 + 32-bit padding.
* src/truetype/ttpload.c (tt_face_load_hdmx): Thoroughly check
the record size and improve tracing.
|
|
|
cff026d4
|
2021-11-23T16:05:12
|
|
[truetype] Partly revert 5b626281.
Fixes #1118.
* src/truetype/ttpload.c (tt_face_load_hdmx): Do not assume that
`record_size` is rounded even though the records are padded.
|
|
|
3cabd142
|
2021-11-22T19:36:45
|
|
Update `CHANGES` files, other minor whitespace and documentation issues.
|
|
|
a11650d7
|
2021-11-21T07:51:31
|
|
* src/truetype/ttinterp.c (Ins_MD): Avoid `FT_ABS`.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38562
|
|
|
e4f7673e
|
2021-11-13T21:11:00
|
|
[truetype] Updates for the forthcoming OpenType 1.9 standard (2/2).
* src/truetype/ttgxvar.c (ft_var_load_item_variation_store):
s/shortDeltaCount/wordDeltaCount/ (as done in the specification, too).
Recognize new format and reject it for now.
|
|
|
93e6b3e8
|
2021-11-13T14:41:40
|
|
[truetype] Updates for the forthcoming OpenType 1.9 standard (1/2).
This is in preparation for implementing `DeltaSetIndexMap` format 1, which
is used by `COLR` v1 tables, and which allows 32bit indices.
https://docs.microsoft.com/en-us/typography/opentype/otspec190/delta/otvarcommonformats_delta.html
* src/truetype/ttgxvar.h (GX_DeltaSetIdxMapRec): Change type of `mapCount`
to `FT_ULong`.
* src/truetype/ttgxvar.c (ft_var_load_delta_set_index_mapping): Add argument
for passing the table size; update caller.
Implement new format.
|
|
|
c5cd2a3d
|
2021-11-10T08:46:26
|
|
* src/truetype/ttgxvar.c (ft_var_to_normalized): Edge optimization.
|
|
|
bb4e049a
|
2021-11-04T08:58:13
|
|
[truetype] Make trickyness checks depend on TT_USE_BYTECODE_INTERPRETER.
Based on a patch from metarutaiga (MR !106).
* src/truetype/ttobjs.c (tt_skip_pdffont_random_tag,
tt_check_trickyness_family, tt_synth_sfnt_checksum, tt_get_sfnt_checksum,
tt_check_trickyness_sfnt_ids, tt_check_trickyness): Put functions into a
`TT_USE_BYTECODE_INTERPRETER` block.
(tt_face_init): Put trickyness checks into a `TT_USE_BYTECODE_INTERPRETER`
block.
Fixes #1111.
|
|
|
cb9e7b7a
|
2021-11-06T22:59:31
|
|
[truetype] Avoid some memory zeroing in variations.
* src/truetype/ttgxvar.c (ft_var_readpackeddeltas, ft_var_load_avar,
ft_var_load_item_variation_store, ft_var_load_gvar): Use FT_QNEW_ARRAY
if memory immediately initialized or discarded otherwise.
|
|
fc55291b
|
2021-11-04T11:07:43
|
|
[truetype] Fix handling of packed deltas in Variation Fonts.
* src/truetype/ttgxvar (ft_var_readpackeddeltas): Don't expect the number of
bytes used to encode the deltas to be higher than the number of encoded
values. The specification allows a very compact encoding; for example, a
list of 200 zeros can be encoded with just a couple of bytes.
We now count the consumed bytes to make sure to not read more than expected.
|
|
|
9ed5332f
|
2021-11-04T08:56:59
|
|
[truetype] Fix CVAR handling of tuples for all points.
* src/truetype/ttgxvar (tt_face_vary_cvt): Function
`ft_var_readpackedpoints`, when it returns `ALL_POINTS`, also sets
`point_count` to value 0. However, the CVAR code was incorrectly expecting
that `point_count` would be set to match the length of the CVT table.
|