Commit Graph

1933 Commits

Author SHA1 Message Date
Alexei Podtelezhnikov 9de432f7f2 [psaux] Remove unused structure field.
* include/freetype/internal/psaux.h (PS_TableRec): Remove `num_elems`.
* src/psaux/psobjs.c (ps_table_new): Remoove its initialization.
2022-07-31 22:13:34 -04:00
Werner Lemberg 2af6903b15 * src/base/ftglyph.c (FT_Get_Glyph): Set `*aglyph` to NULL in case of error. 2022-07-29 22:57:18 +02:00
Werner Lemberg 38dc768a42 Fix clang14 compiler warnings.
* include/freetype/internal/ftstream.h (FT_GET_SHORT_LE, FT_GET_USHORT_LE):
Fix type.

* src/sfnt/ttcolr.c (get_deltas_for_var_index_base): Always return boolean
value.
(tt_face_get_colorline_stops): Fix type of `var_index_base`.
2022-07-29 21:53:28 +02:00
Dominik Röttsches 3414fef74f [sfnt] Support variable 'COLR' v1 color lines.
* include/freetype/ftcolor.h (FT_ColorStopIterator): Add field
`read_variable` to indicate whether a variation index base should be read.

* src/sfnt/ttcolr.c: (FT_PaintFormat_Internal): New enumerations
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_LINEAR_GRADIENT`
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_RADIAL_GRADIENT`, and
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_SWEEP_GRADIENT`.
(read_color_line): New parameter `read_variable`; update callers.
(read_paint): Handle new enumerations.
2022-07-08 11:51:07 +02:00
Stephen Holdaway d5d048bbfe doc: Clarify description of `FT_Stream_IoFunc`.
The existing documentation comments on `FT_Stream_IoFunc` hinted at the dual
seek/read behavior required for custom stream implementations to work, but
it didn't explicitly explain it.  Without looking at the internals of
FreeType, it was easy for someone to assume their implementation should
handle both seek and read operations all the time.  If this is done, you get
a variety of errors, but mostly just `Unknown_File_Format` (error code
0x02).
2022-07-06 12:55:40 +02:00
Werner Lemberg 31005d98a4 include/freetype/ftmm.h: Improve documentation. 2022-07-02 09:34:13 +02:00
Dominik Röttsches dece953516 [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`.
2022-06-29 20:27:11 +02:00
Dominik Röttsches 15fef219d6 New function `FT_MulAddFix` to compute the sum of fixed-point products.
This function, based on the code of `FT_MulFix`, uses 64-bit precision
internally for intermediate computations.

* include/freetype/internal/ftcalc.h, base/ftcalc.c (FT_MulAddFix):
Implement it.
2022-06-29 20:12:04 +02:00
Dominik Röttsches 117df36b4c [sfnt] Upgrade stop_offset to FT_Fixed from FT_F2Dot14 2022-06-22 09:33:20 +00:00
Werner Lemberg 2848378be5 s/fixed point/fixed-point/ 2022-06-21 17:08:04 +02:00
Dominik Röttsches 4b6f92e6b3 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.
2022-06-21 12:25:46 +03:00
Ben Wagner f7daf9d293 [stream] Fix reading s32 when long is s64
`FT_READ_LONG`, `FT_GET_LONG`, and related macros did not return
negative values when `long` is more than 32 bits. `FT_Stream_ReadULong`
would read four bytes into the LSB of an `FT_ULong` and return that.
Since this can never set the MSb of the `FT_ULong` when `FT_ULong` is
more than 32 bits the cast to `FT_Long` never resulted in a negative
value.

Fix this by modifying `FT_Stream_Read*` to return a type of the same
size as the bytes it is reading and changing the `FT_READ_*` and
`FT_GET_*` macros to cast to the same type returned by `FT_Stream_Read*`
but with the correctly signed type (instead of casting to what is
assumed to be the type of `var` which will happen automatically anyway).

There exist a few cases like with the `OFF3` variants where there isn't
generally a type with the correct size. `FT_PEEK_OFF3` works around this
loading the bytes into the three most significant bits and then doing a
signed shift down. `FT_NEXT_OFF3` also already worked correctly by
casting this signed value to another signed type. `FT_Stream_GetUOffset`
works correctly but one must be careful not to attempt to cast the
returned value to a signed type. Fortunately there is only
`FT_GET_UOFF3` and no `FT_GET_OFF3`.

All of these cases are handled correctly when reading values through
`FT_Stream_ReadFields` since it generically computes the signed value
through an `FT_Int32`. This change is essentially doing the same for
these macros.

* include/freetype/internal/ftstream.h (FT_NEXT_*, FT_GET_*, FT_READ*):
Update macros and return types to use fixed size types for fixed size
values.

* src/base/ftstream.c (FT_StreamGet*, FT_StreamRead*): Dito.

Issue: #1161
2022-06-18 12:58:23 -04:00
Ben Wagner b11074cf6d [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
2022-06-06 16:55:17 -04:00
Dominik Röttsches 7838c78f53 [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.
2022-05-23 16:18:28 +03:00
Dominik Röttsches a4c4566b6d [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.
2022-05-19 07:14:05 +02:00
Werner Lemberg e8ebfe988b * Version 2.12.1 released.
==========================

Tag sources with `VER-2-12-1'.

* docs/VERSION.TXT: Add entry for version 2.12.1.
* docs/CHANGES, docs/release: 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/2.12.0/2.12.1/, s/2120/2121/.

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

* builds/unix/configure.raw (version_info): Set to 24:3:18.
* CMakeLists.txt (VERSION_PATCH): Set to 1.
2022-05-01 07:09:34 +02:00
Ben Wagner a1ca701023 [sfnt] Correct FT_ColorStopIterator documentation.
* include/freetype/ftcolor.h (FT_ColorStopIterator): the user should not
 set `p` to NULL before calling `FT_Get_Colorline_Stops`. `p` and
`num_color_stops` are set by `FT_Get_Paint`. `p` and
`current_color_stop` are updated by `FT_Get_Colorline_Stops`.
2022-04-04 15:28:54 -04:00
Werner Lemberg e50798b720 * Version 2.12.0 released.
==========================

Tag sources with `VER-2-12-0'.

* docs/VERSION.TXT: Add entry for version 2.12.0.
* docs/CHANGES, docs/release: 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/2.11.1/2.12.0/, s/2111/2120/.

* include/freetype/freetype.h (FREETYPE_MINOR): Set to 12.
(FREETYPE_PATCH): Set to 0.

* builds/unix/configure.raw (version_info): Set to 24:2:18.
* CMakeLists.txt (VERSION_MINOR): Set to 12.
(VERSION_PATCH): Set to 0.

* builds/toplevel.mk (do-dist): Generate `ChangeLog` entries for all commits
since version 2.11.0 (when we stopped creating this file manually).
2022-03-31 13:55:50 +02:00
Werner Lemberg a8e4563c34 Add `FT_FACE_FLAG_SBIX_OVERLAY` and `FT_HAS_SBIX_OVERLAY`.
* include/freetype/freetype.h (FT_FACE_FLAG_SBIX_OVERLAY,
FT_HAS_SBIX_OVERLAY): New macro.

* src/sfnt/ttsbit.c (tt_face_load_sbit): Handle `FT_FACE_FLAG_SBIX_OVERLAY`.
Remove obsolete tracing message.
2022-03-25 06:37:41 +00:00
Werner Lemberg 1949a7ec3a Add `FT_PARAM_TAG_IGNORE_SBIX`.
This is another bit to handle 'sbix' tables as described in the OpenType
specification.

* include/freetype/ftparams.h (FT_PARAM_TAG_IGNORE_SBIX): New macro.

* src/sfnt/sfobjc.c (is_apple_sbix): Rename to...
(has_sbix): ... this.
Check for more sbit tables.
Handle `FT_PARAM_TAG_IGNORE_SBIX` to eventually control `has_sbix`.
Only call sbit table loader if an sbit table is present.
2022-03-25 06:37:41 +00:00
Werner Lemberg 907715a6a2 Add `FT_FACE_FLAG_SBIX` and `FT_HAS_SBIX`.
Fonts with 'sbix' tables need special handling by the application.

* include/freetype/freetype.h (FT_FACE_FLAG_SBIX, FT_HAS_SBIX): New macros.

* src/sfnt/sfobjs.c (sfnt_load_face): Set `FT_FACE_FLAG_SBIX` if 'sbix'
table is present.
2022-03-25 06:37:41 +00:00
Werner Lemberg 06727a5257 * include/freetype/freetype.h (FT_LOAD_SBITS_ONLY): Tag macro as public. 2022-03-25 06:37:41 +00:00
Ben Wagner 7789f2bb79 [doc] FT_OUTLINE_OVERLAP was introduced in 2.10.3.
* include/freetype/ftimage.h (FT_OUTLINE_OVERLAP): Document when added.
2022-03-19 06:20:53 +00:00
Anuj Verma 5499d7bf81 * include/freetype/freetype.h: Improve SDF documentation. 2022-03-05 16:44:23 +01:00
Werner Lemberg 01d4deb061 ftmm.h: Minor documentation improvement. 2022-02-16 14:51:44 +01:00
Werner Lemberg 5a53e51b5c t1tables.h: Documentation improvements. 2022-02-12 07:58:43 +01:00
Werner Lemberg c67ecb8c3a t1tables.h: Whitespace. 2022-02-12 07:52:57 +01:00
Werner Lemberg 24db55ecb8 Various minor doc fixes. 2022-02-06 21:06:52 +01:00
Werner Lemberg 36ee3160a0 freetype.h: Minor documentation improvement. 2022-01-31 10:37:56 +01:00
Ben Wagner e34a860a07 Document `FT_Outline_Decompose` degenerate segments.
`FT_Outline_Decompose` does not filter out and can return degenerate
segments in an outline. This can be surprising when attemping to
stroke such an outline. Clarify the existing documentation on this
matter to cover all forms of degeneracy (without specifying exactly
how they will be reported), why they might arise, and better explain in
what cases they may be an issue.

* include/freetype/ftoutlin.h (FT_Outline_Decompose): update
documentation.

Fixes #952.
2022-01-27 21:49:47 +01:00
Werner Lemberg 267c6918d1 Aarg, typo. 2022-01-25 14:46:36 +01:00
Werner Lemberg 9af1127fbe freetype.h: More updates to `FT_LOAD_COLOR` description. 2022-01-25 14:45:10 +01:00
Werner Lemberg 6a8e95b7a0 Update documentation for `FT_LOAD_COLOR`. 2022-01-25 08:49:41 +01:00
Werner Lemberg ef48a33271 * src/svg/ftsvg.c (ft_svg_property_set): Disallow NULL pointers. 2022-01-23 19:05:15 +01:00
Werner Lemberg 21d0fa3742 More documentation on handling OT-SVG. 2022-01-23 12:23:47 +01:00
Moazin Khatti 0bf49bd229 Add 'svg' module for OT-SVG rendering.
* CMakeLists.txt (BASE_SRCS): Add svg module file.
* meson.build (ft2_public_headers): Add `otsvg.h`.

* modules.cfg (RASTER_MODULES): Add `svg` module.

* builds/meson/parse_modules_cfg.py: Add svg module.

* include/freetype/config/ftmodule.h: Add `ft_svg_renderer_class`.
* include/freetype/fterrdef.h: Add `Invalid_SVG_Document` and
`Missing_SVG_Hooks` error codes.
* include/freetype/internal/fttrace.h: Add tracing for `otsvg`.
* include/freetype/internal/svginterface.h: New file.  It adds an interface
to enable the presetting hook from the `base` module.
* include/freetype/otsvg.h (SVG_Lib_Init_Func, SVG_Lib_Free_Func,
SVG_Lib_Render_Func, SVG_Lib_Preset_Slot_Func): New hooks for SVG rendering.
(SVG_RendererHooks): New structure to access them.

* src/base/ftobjs.c: Include `svginterface.h`.
(ft_glyphslot_preset_bitmap): Add code for presetting the slot for SVG
glyphs.
(ft_add_renderer): Updated.

* src/svg/*: New files.
2022-01-20 16:45:18 +00:00
Moazin Khatti 97c09a803e Add `FT_Glyph` support for OT-SVG glyphs.
* include/freetype/ftglyph.h (FT_SvgGlyphRec, FT_SvgGlyph): New structure.

* src/base/ftglyph.c: Include `otsvg.h`.
(ft_svg_glyph_init, ft_svg_glyph_done, ft_svg_glyph_copy,
ft_svg_glyph_transform, ft_svg_glyph_prepare): New function.
(ft_svg_glyph_class): New class.
(FT_New_Glyph, FT_Glyph_To_Bitmap): Updated to handle OT-SVG glyphs.
* src/base/ftglyph.h: Updated.
2022-01-20 16:45:18 +00:00
Moazin Khatti f93a897afe Add code to load OT-SVG glyph documents.
* include/freetype/config/ftheader.h (FT_OTSVG_H): New macro.
* include/freetype/freetype.h (FT_FACE_FLAG_SVG, FT_HAS_SVG): New macros.
(FT_LOAD_SVG_ONLY): New internal macro.
* include/freetype/ftimage.h (FT_Glyph_Format): New enumeration value
`FT_GLYPH_FORMAT_SVG`.
* include/freetype/internal/ftobjs.h (FT_GLYPH_OWN_GZIP_SVG): New macro.
* include/freetype/internal/fttrace.h: Add `ttsvg` for `ttsvg.c`.
* include/freetype/internal/sfnt.h(load_svg, free_svg, load_svg_doc): New
functions.
* include/freetype/internal/tttypes.h (TT_FaceRec): Add `svg` for
the SVG table.
* include/freetype/otsvg.h (FT_SVG_DocumentRec): New structure to hold the
SVG document and other necessary information of an OT-SVG glyph in a glyph
slot.
* include/freetype/tttags.h (TTAG_SVG): New macro.

* src/base/ftobjs.c: Include `otsvg.h`.
(ft_glyphslot_init): Allocate `FT_SVG_DocumentRec` in `slot->other`
if the SVG table exists.
(ft_glyphslot_clear): Free it upon clean-up if it is a GZIP compressed
glyph.
(ft_glyphslot_done): Free the document data if it is a GZIP compressed
glyph.
(FT_Load_Glyph): Don't auto-hint SVG documents.

* src/cache/ftcbasic.c (ftc_basic_family_load_glyph): Add support for
FT_GLYPH_FORMAT_SVG.

* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttsvg.c`.
* src/sfnt/sfdriver.c: Include `ttsvg.h`.
(sfnt_interface): Add `tt_face_load_svg`, `tt_face_free_svg` and
`tt_face_load_svg_doc`.
* src/sfnt/sfnt.c: Include `ttsvg.c`.
* src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Add code to load and
free data of the the SVG table.
* src/sfnt/ttsvg.c: New file, implementing `tt_face_load_svg`,
`tt_face_free_svg` and `tt_face_load_svg_doc`.
* src/sfnt/ttsvg.h: Declarations of the SVG functions in
`ttsvg.c`.
2022-01-20 16:45:18 +00:00
Moazin Khatti 06c1a25e63 Add flag `FT_CONFIG_OPTION_SVG`.
This flag is going to be used to conditionally compile support for OT-SVG
glyphs.  FreeType will do the parsing and rely on external hooks for
rendering of OT-SVG glyphs.

* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_SVG): New flag.
2022-01-20 16:45:18 +00:00
Alexei Podtelezhnikov 99a940f84a * include/freetype/freetype.h: Clarify `FT_Size` life cycle. 2022-01-20 15:06:09 +00:00
Alexei Podtelezhnikov 054782c48e [base] Undefined scale means no scale.
It might be surprising that FreeType does not have default ppem and
the size has to be set explicitly or face undefined behavior with
undefined variables and errors. This offers an alternative to
missing or zero scale by simply setting FT_LOAD_NO_SCALE.  Defined
behavior is bettr than undefined one.

This is alternative to !132 and discussed in
  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43708

* src/base/ftobjs.c (FT_Load_Glyph): Deal with zero scale.
* include/freetype/freetype.h: Document it.
2022-01-19 22:14:06 -05:00
Ozkan Sezer 3f6497bdc5 Add Watcom C/C++ calling.
In the unlikely case the source is built with OpenWatcom's -ec?
switches to enforce a calling convention, the qsort() compare
function must still be set to __watcall.

* include/freetype/internal/compiler-macros.h (FT_COMPARE_DEF):
Updated.
2022-01-15 22:44:28 -05:00
Ozkan Sezer 11ea89b51c Add Watcom C/C++ support.
* include/freetype/config/integer-types.h: Make sure `long long` is
used then available.
* include/freetype/internal/ftcalc.h (FT_MSB): Add Watcom C/C++ pragma.
2022-01-14 22:07:44 -05:00
Alexei Podtelezhnikov 7f7bf6f0f0 * include/freetype/internal/compiler-macros.h [FT_COMPARE_DEF]: Tighten.
This works around Watcom C library using __watcall.
2022-01-14 20:33:28 -05:00
Werner Lemberg d0cfb4e1b2 Update all copyright notices. 2022-01-11 10:54:10 +01:00
Werner Lemberg 2b672e7210 * builds/unix/configure.raw: Restore `SYSTEM_ZLIB` variable.
This was accidentally removed with commit 93ebcbd0 almost eight years ago.
2022-01-02 18:33:03 +01:00
Alexei Podtelezhnikov 7add5b2bcb [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.
2021-12-11 22:54:06 -05:00
Alexei Podtelezhnikov 6c831d658f [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.
2021-12-11 22:34:27 -05:00
Werner Lemberg 3f83daeecb * Version 2.11.1 released.
==========================

Tag sources with `VER-2-11-1'.

* docs/VERSION.TXT: Add entry for version 2.11.1.
* docs/CHANGES, docs/release: 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/2.11.0/2.11.1/, s/2110/2111/.

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

* builds/unix/configure.raw (version_info): Set to 24:1:18.
* CMakeLists.txt (VERSION_PATCH): Set to 1.

* builds/toplevel.mk (version_tag, CHANGELOG_SCRIPT): New variables.
(do-dist): Generate `ChangeLog` file with all commits since last release.
2021-12-02 13:33:12 +01:00
Werner Lemberg 3cabd142ce Update `CHANGES` files, other minor whitespace and documentation issues. 2021-11-22 19:58:21 +01:00