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ChangeLog
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2024-08-12 Werner Lemberg <[email protected]>
* Version 2.13.3 released.
==========================
Tag sources with `VER-2-13-3'.
* docs/VERSION.TXT: Add entry for version 2.13.3.
* 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/2.13.2/2.13.3/, s/2132/2133/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.
* builds/unix/configure.raw (version_info): Set to 26:2:20.
* CMakeLists.txt (VERSION_PATCH): Set to 3.
2024-08-12 Werner Lemberg <[email protected]>
* meson.build: Install `freetype2.m4`.
Fixes #1290.
2024-08-12 Werner Lemberg <[email protected]>
* src/*/*: Fix C++ compilation; fix clang warnings.
2024-08-12 Werner Lemberg <[email protected]>
* subprojects/*.wrap: Updated.
2024-08-12 Werner Lemberg <[email protected]>
Various minor documentation or formatting fixes.
2024-08-07 Werner Lemberg <[email protected]>
tttables.h (FT_Get_CMap_Format): Minor documentation improvement.
2024-08-05 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgxvar.c (ft_var_readpacked*): Minor.
2024-08-05 Alexei Podtelezhnikov <[email protected]>
* src/base/ftstream.c (FT_Stream_ReadFields): Switch to `FT_Offset`.
2024-08-02 Alexei Podtelezhnikov <[email protected]>
* src/winfonts/winfnt.c (fnt_face_get_dll_font): Unwrap arithmetic.
2024-08-02 Alexei Podtelezhnikov <[email protected]>
* src/base/ftstream.c (FT_Stream_ReadFields): Update condition.
2024-08-02 Alexei Podtelezhnikov <[email protected]>
[truetype/GX] Use more robust conditions.
* src/truetype/ttgxvar.c (ft_var_readpacked{points,deltas}): Rewrite
conditions to avoid undefined behavior.
2024-07-31 Alexei Podtelezhnikov <[email protected]>
[truetype/GX] Read points and deltas more carefully.
Hopefully fixes newly introduced buffer overflows:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=70807
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=70809
* src/truetype/ttgxvar.c (ft_var_readpacked{points,deltas}): Explicitly
check stream frame limits and modify run counting.
2024-07-30 Alexei Podtelezhnikov <[email protected]>
[truetype/GX] Read stream more aggressively.
With ample checks against the table size, we should be able to use
macros without the limit checks and functional calls.
* src/truetype/ttgxvar.c (ft_var_readpacked{points,deltas}):
Use FT_NEXT_* instead of FT_GET_*.
2024-07-29 Alexei Podtelezhnikov <[email protected]>
* src/sfnt/ttload.c (tt_face_load_name): Shorten dereference.
2024-07-29 Alexei Podtelezhnikov <[email protected]>
* src/autofit/afmodule.c (af_autofitter_load_glyph): Shorten deref.
2024-07-29 Alexei Podtelezhnikov <[email protected]>
[bdf,pcf,winfonts,sfnt] Remove barely used marcros.
* include/freetype/internal/ftobjs.h (FT_FACE_SIZE, FT_SIZE_FACE):
Removed.
* src/bdf/bdfdrivr.c (BDF_Glyph_Load): Updated.
* src/pcf/pcfdrivr.c (PCF_Glyph_Load): Ditto.
* src/winfonts/winfnt.c (FNT_Load_Glyph): Ditto
* src/sfnt/ttbdf.c (tt_face_find_bdf_prop): Ditto.
2024-07-27 Dan Rosser <[email protected]>
* include/freetype/internal/ftcalc.h (FT_MSB)[_M_ARM64EC]: Added.
2024-07-19 Werner Lemberg <[email protected]>
* src/truetype/ttobjs.c (tt_size_run_prep): Correct scaling of CVT values.
This reverts the scaling behaviour introduced in commit 37580053.
Fixes issue #1005.
2024-06-29 Philip Race <[email protected]>
* psobjs.c (ps_table_add): Check length before calling `FT_MEM_CPY`.
Fixes issue #1280.
2024-06-29 Don Olmstead <[email protected]>
CMakeLists.txt: Respect FT_DISABLE_ZLIB value
The CMake build uses `find_package` to look for dependencies. Before calling `find_package` it looks to see if the dependency was disabled. If not the associated `_FOUND` variable will be set. This value is then checked to determine if the dependency is added.
However `find_package(PNG)` calls `find_package(ZLIB)` within its find module. So in the case of `FT_DISABLE_ZLIB=TRUE` and `FT_DISABLE_PNG=FALSE` the `ZLIB_FOUND` value can be set and even though `FT_DISABLE_ZLIB` is turned on.
Unset the value of `ZLIB_FOUND` after the call to `find_package(PNG)` so the value is only set when `FT_DISABLE_ZLIB` is turned off.
2024-06-26 Werner Lemberg <[email protected]>
Make 'multi' build work again.
* src/psaux/psobjs.c: Include `psft.h`.
* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `ttgpos.c`.
Fixes issue #1284.
2024-06-23 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgload.c (load_truetype_glyph): Unsigned fix.
2024-06-21 Alexei Podtelezhnikov <[email protected]>
Use unsigned tags `FT_Outline`.
This change comes along with 2a7bb4596f56 ans is only meant to reduce
pointer casting in the code.
* include/freetype/ftimage.h (FT_Outline): Do it.
* src/*: Update `FT_Outline` users.
2024-06-21 Ben Wagner <[email protected]>
[ttgxvar] Avoid "applying zero offset to null pointer"
In C it is undefined behavior to do arithmetic on a null pointer, including
adding zero. When using NotoSansKhmer[wdth,wght].ttf UBSAN produces a report
like
ttgxvar.c:1052:31: runtime error: applying zero offset to null pointer
when adding zero to `varData->deltaSet` (which is null) to produce `bytes`.
Protect against all the potential issues of this kind by returning early if
`varData->regionIdxCount == 0`.
* src/truetype/ttgxvar.c (tt_var_get_item_delta): early return on no regions
2024-06-21 Alexei Podtelezhnikov <[email protected]>
Use unsigned point and contour indexing in `FT_Outline`.
This doubles the number or allowed points, see
https://github.com/harfbuzz/harfbuzz/issues/4752
Although it is hardly practical to use more than 32767 points,
other font engines seem to support it.
* docs/CHANGES: Announce it.
* include/freetype/ftimage.h (FT_Outline): Do it and update limits.
* src/*: Update `FT_Outline` users.
2024-06-20 Alexei Podtelezhnikov <[email protected]>
* src/pfr/pfrgload.c (pfr_glyph_curve_to): Avoid casting.
2024-06-19 Alexei Podtelezhnikov <[email protected]>
* src/base/ftgloadr.c (FT_GlyphLoader_Prepare): Minor refactoring.
2024-06-18 Alexei Podtelezhnikov <[email protected]>
[base, autofit, psaux] Remove unnecessary casting.
* src/autofit/afhints.c (af_glyph_hints_reload): Remove (short) casting.
* src/base/ftgloadr.c (FT_GlyphLoader_Add): Ditto.
* src/psaux/psobjs.c ({t1,cff,ps}_builder_{add,close}_contour): Ditto.
2024-06-18 Alexei Podtelezhnikov <[email protected]>
* include/freetype/ftimage.h: Explain standard types.
2024-05-29 Ben Wagner <[email protected]>
[ttgxvar] Replace tabs with spaces
Also clarify comments around conversion and clamping.
* src/truetype/ttgxvar.c (ft_var_to_normalized): doit
2024-05-27 Alexei Podtelezhnikov <[email protected]>
[truetype/GX] Consolidate memory allocations.
* src/truetype/ttgxvar.c (tt_face_vary_cvt, TT_Vary_Apply_Glyph_Deltas):
Allocate and split bigger memory blocks, avoid unnecessary zeroing,
do not copy shared tuples, revise error exit paths.
2024-05-26 Alexei Podtelezhnikov <[email protected]>
Whitespace.
2024-05-24 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgxvar.c (ft_var_apply_tuple): Reduce checks.
2024-05-24 Alexei Podtelezhnikov <[email protected]>
Revert "[truetype] Reduce allocation scope."
This reverts commit 9ff4153cbfd60491f11bb56905ce6e20e94d23c7.
2024-05-23 Alexei Podtelezhnikov <[email protected]>
[truetype] Reduce allocation scope.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Reduce scope
of `points_org` and 'points_out`.
2024-05-23 Alexei Podtelezhnikov (Алексей Подтележников) <[email protected]>
* .gitlab-ci.yml: Disable UWP compilation.
2024-05-23 Alexei Podtelezhnikov <[email protected]>
* include/freetype/internal/ftmemory.h (FT_MEM_DUP): Fix g++ error.
2024-05-21 Alexei Podtelezhnikov <[email protected]>
[cff, truetype] Validate variation axes immediately.
Instead of validating variation axes in every access, OpenType specs
suggest that peak = 0 be used to tag invalid ranges. This implements
just that once during loading.
* src/cff/cffload.c (cff_blend_build_vector): Move the range checks...
(cff_vstore_load): ... here.
* src/truetype/ttgxvar.c (tt_var_get_item_delta): Ditto...
(tt_var_load_item_variation_store): ... ditto.
2024-05-21 Alexei Podtelezhnikov <[email protected]>
[cff, truetype] Rearrange variation range checks.
This should achieve quicker results for common cases.
* src/cff/cffload.c (cff_blend_build_vector): Rearrange conditionals.
* src/truetype/ttgxvar.c (tt_var_get_item_delta): Ditto.
2024-05-21 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgxvar.c (tt_var_get_item_delta): Align with specs.
2024-05-21 Alexei Podtelezhnikov <[email protected]>
* src/truetype/ttgxvar.c (tt_var_get_item_delta): Minor refactoring.
2024-05-21 Alexei Podtelezhnikov <[email protected]>
[cff] Optimize the blend vector computations.
* src/cff/cffload.c (cff_blend_build_vector): Use FT_MulDiv and skip
multiplying by 1.
2024-05-20 Alexei Podtelezhnikov <[email protected]>
[bdf] Use concise macros.
* src/bdf/bdflib.c (bdf_create_property): Use FT_STRDUP.
(bdf_parse_glyphs_, bdf_parse_start_): Use FT_DUP for brevity.
2024-05-20 Alexei Podtelezhnikov <[email protected]>
[cache] Use FT_DUP to duplicate data.
* src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Use concise FT_MEM_DUP.
2024-05-20 Alexei Podtelezhnikov <[email protected]>
[truetype, type1] Use FT_DUP to duplicate data.
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Use concise FT_DUP.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Ditto.
* src/type1/t1load.c (parse_subrs): Ditto.
2024-05-18 Alexei Podtelezhnikov <[email protected]>
* builds/windows/ftsystem.c: Use _WINRT_DLL to check for UWP.
Fixes compilation using Windows GDK, reported by Erin Melucci.
2024-05-13 Alexei Podtelezhnikov <[email protected]>
* include/freetype/ftmm.h: Include `freetype.h`.
Reported by Ben Wagner, see !326.
2024-05-13 Alexei Podtelezhnikov <[email protected]>
[type1/MM] Safer handle arrays of different types.
* src/type1/t1load.c (parse_blend_design_map): Separately allocate...
(T1_Done_Blend): ... and free `design_points` and `blend_points`.
2024-05-12 Alexei Podtelezhnikov <[email protected]>
* src/type1/t1load.c (parse_blend_design_map): Add risky cast.
2024-05-12 Alexei Podtelezhnikov <[email protected]>
* docs/CHANGES: Mention the last commit.
2024-05-12 Alexei Podtelezhnikov <[email protected]>
[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 Alexei Podtelezhnikov <[email protected]>
* src/pshinter/pshrec.c (ps_hints_stem): Correct argument.
2024-05-08 Ben Wagner <[email protected]>
[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 Alexei Podtelezhnikov <[email protected]>
* include/freetype/internal/psaux.h: Fix g++ warning.
Reported by Hin-Tak Leung.
2024-05-08 Ben Wagner <[email protected]>
[colr] Avoid overflow in range checks
In 32 bit builds `FT_ULong` is 32 bits and can silently overflow when a
large number is read into one and then it is summed or multiplied with
another number. Checks for range overflow must be written so that they
themselves do not overflow. Also ensure that the table_size is always the
first part of the range check and consistently use `<` or `<=`.
* src/sfnt/ttcolr.c (tt_face_load_colr): Avoid overflow.
(find_base_glyph_v1_record): Remove old work-around.
Bug: https://issues.chromium.org/issues/41495455
Bug: https://issues.chromium.org/issues/40945818
2024-05-06 Werner Lemberg <[email protected]>
.mailmap: Fix entry for Ben Wagner.
2024-05-06 Alexei Podtelezhnikov <[email protected]>
[sdf, bsdf] Use shared FT_SqrtFixed.
FT_SqrtFixed (95b0fe2a6dff) is faster and does not overflow.
* src/sdf/ftsdfcommin.h (square_root): Replace with a macro.
* src/sdf/ftsdfcommin.c (square_root): Remove function.
2024-05-04 Alexei Podtelezhnikov <[email protected]>
* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Remove FT_ABS.
See
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=68679
2024-05-03 Alexei Podtelezhnikov <[email protected]>
* src/sfnt/sfwoff2.c (woff2_open_font): Fix copy-paste typo.
2024-05-03 Alexei Podtelezhnikov <[email protected]>
[woff,woff2] Limit the number of tables and use FT_MSB.
The upper limit of 4095 is implied by the SFNT header format
where the multiplication by 16 would overflow without it.
* src/sfnt/sfwoff.c (woff_open_font): Updated.
* src/sfnt/sfwoff2.c (woff2_open_font): Ditto.
2024-05-02 Ben Wanger <[email protected]>
[woff2] Disallow zero table font entries
The existing code already disallows zero table woff2 overall, but still
allows for individual CollectionFontEntry to create font instances with
zero tables. Such fonts are not useful so error early.
This also fixes an MSAN discovered issue where if a CollectionFontEntry
numTables is zero then the sfnt_header was not fully initialized.
* src/sfnt/sfwoff2.c (woff2_open_font): error on zero tables, always
initalize sfnt_header
Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=68384
2024-05-02 Alexei Podtelezhnikov <[email protected]>
[sfnt] Use faster macros in checksums.
* src/truetype/ttobjs.c (tt_synth_sfnt_checksum): Use FT_NEXT_XXX.
* src/sfnt/sfwoff2.c (compute_ULong_sum): Use macros.
2024-05-01 Alexei Podtelezhnikov <[email protected]>
* src/sfnt/sfwoff2.c (compute_ULong_sum): Clean up.
2024-04-30 Alexei Podtelezhnikov <[email protected]>
* docs/CHANGES: Updated.
2024-04-30 Alexei Podtelezhnikov <[email protected]>
* src/cache/ftccache.c (FTC_Cache_RemoveFaceID): Remove nodes instantly.
2024-04-29 Alexei Podtelezhnikov <[email protected]>
[cache] Remove unused `node_reset`.
* src/cache/ftcmru.h (FTC_MruListClassRec): Remove `node_reset` field.
* src/cache/ftcbasic.c (ftc_basic_{image,sbit}_family_class): Ditto.
* src/cache/ftcmanag.c (ftc_face_list_class): Ditto.
(ftc_size_node_reset): Remove function.
* src/cache/ftcglyph.h: Fix comment.
2024-04-29 Alexei Podtelezhnikov <[email protected]>
* src/cache/ftcmru.c (FTC_MruList_New): Do not reset nodes.
Resetting of the size nodes can crash, if a parent face purge happens
simultaneously and destroys the node. It is safer to create a new node.
Fixes #1270, reopened with a separate issue.
2024-04-28 Alexei Podtelezhnikov <[email protected]>
* src/cache/ftcimage.c (ftc_inode_weight): Formatting.
2024-04-28 Alexei Podtelezhnikov <[email protected]>
Document the SDF spread further.
2024-04-23 Alexei Podtelezhnikov <[email protected]>
* include/freetype/ftdriver.h: s/truncated/clamped/.
2024-04-23 Alexei Podtelezhnikov <[email protected]>
Improve SDF documentation.
2024-04-21 Alexei Podtelezhnikov <[email protected]>
[cache] Minor tweaks.
* src/cache/ftcimage.c (ftc_inode_free): Remove unnecessary check.
* src/cache/ftcmanag.c (FTC_Manager_Done): Do not zero before freeing.
2024-04-21 Alexei Podtelezhnikov <[email protected]>
* src/cache/ftcbasic.c: Cosmetic harmonization.
2024-04-20 Alexei Podtelezhnikov <[email protected]>
[cache] Reduce type mismatches.
* src/cache/ftcbasic.c (FTC_BasicAttrRec): Match type of `load_flags`
to its main purpose in `FT_Load_Glyph`.
(FTC_ImageCache_Lookup{,Scaler},FTC_SBitCache_Lookup{,Scaler}): Updated.
2024-04-19 Alexei Podtelezhnikov <[email protected]>
* src/cache/{ftcbasic.c,ftccmap.c}: Use FTC_INLINE.
2024-04-19 Alexei Podtelezhnikov <[email protected]>
[cache] Tweak headers.
* src/cache/ftccback.h: Include less and move `ftc_node_destroy`...
* src/cache/ftccache.h: ... to here.
* src/cache/ftcmanag.c: Include less.
2024-04-19 Alexei Podtelezhnikov <[email protected]>
* src/cache/ftcglyph.c [!FTC_INLINE]: Fix compilation.
2024-04-17 Alexei Podtelezhnikov <[email protected]>
[cache] Improve MRU list management.
* src/cache/ftcmru.c (FTC_MruList_Remove): Cosmetic.
(FTC_MruList_New): Accept only valid changes.
* src/cache/ftcmanag.c (ftc_size_node_done): Simplify.
2024-04-17 Alexei Podtelezhnikov <[email protected]>
[cache] Fix error handling.
Manipulate the cache after a face is requested or a size is looked up
successfully. Fixes #1270.
* src/cache/ftcmanag.c (ftc_size_node_init, ftc_size_node_reset,
ftc_face_node_init): Check for errors before accepting a change.
* src/cache/ftcmru.c (FTC_MruList_New): Do nothing if reset fails.
2024-04-14 Alexei Podtelezhnikov <[email protected]>
[smooth] Switch to vertical bisections.
With horizontal bisections, the smallest section is a whole single
scanline. Almost horizontal lines or other complex scanlines can
easily overflow the rendering pool. Switching to vertical bisections
splits the scanlines and should rule out the overflows. Fixes #1269.
* src/smooth/ftgrays.c (gray_convert_glyph): Bisect vertically.
2024-04-14 Alexei Podtelezhnikov <[email protected]>
* src/smooth/ftgrays.c (gray_convert_glyph): Refactor for convenience.
2024-04-14 Alexei Podtelezhnikov <[email protected]>
[smooth] Store persistent clipping box.
* src/smooth/ftgrays.c (gray_TWorker, gray_raster_render): Add and set
the new structure field.
(gray_convert_glyph): Use it.
2024-03-08 Ben Wanger <[email protected]>
[colr] Ensure enough bytes for PaintColrLayers
* src/sfnt/ttcolr.c (read_paint): check that there are five additional
bytes to be read when reading PaintColrLayers.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=66566
2024-03-08 Ben Wagner <[email protected]>
Avoid n^2 scanning for binary data.
When creating a CID parser the location of the 'StartData' or '/sfnts'
tokens needs to be known. However, the token parser requires that the
entire document be in memory and flattening the entire stream into memory is
to be avoided.
To avoid forcing the entire stream into memory, previously this code would
scan through the stream looking for 'StartData' or '/sfnts' as strings.
However, these strings could have been in a comment or string token, so the
stream would be read into memory up to that point and the parser run to
check that these strings were actually tokens. This forced a parser restart
from the beginning each time; as a result, data with many 'StartData'
non-tokens would take n^2 time to check.
* src/cid/cidparse.c (cid_parser_new): Change algorithm to make the initial
scan look for the last possible 'StartData' or '/sfnts' string in the
stream. The stream is read forward instead of backward as a typical normal
CID font will have one 'StartData' toward the beginning of the data and it
it much faster to read the data from beginning to end instead of end to
beginning. For memory-based fonts the limit is set to the end of the stream
since the stream is already in memory. Then the parser is run once to look
for 'StartData' or '/sfnts' tokens. If they are found the parser is re-set
to reflect this new information.
Reported as
https://issues.chromium.org/issues/40201695
2024-03-06 Alexei Podtelezhnikov <[email protected]>
* CMakeLists.txt: Bump required version to 3.5.
Fixes #1267.
2024-03-04 Jordan Williams <[email protected]>
meson: Use the standard dependency mechanism to find bzip2
This follows standard conventions in Meson by using the pkg-config file.
This change allows Conan to switch to the Meson build system.
2024-02-29 Ben Wanger <[email protected]>
[cff, truetype] Always set up default variable instance.
For default variable instances `cff_face_init` did not set the blend. This
mostly worked as later use of the unset blend produced the default
variation. However, if a user called `TT_Get_MM_Var` the blend would be
partially set up, but not fully. In particular the number of axes, the axis
definitions, and the instance locations would be set up, but not the current
instance location (`coords` and `normalizedcoords`). This could lead to the
default instances of CFF2 fonts erroring on any use of `blend`.
Ensure the default variable instance is fully set up by always calling
`FT_Set_Named_Instance` on a variable face.
* src/cff/cffobjs.c (cff_face_init): Call `FT_Set_Named_Instance` on
default instances.
* src/truetype/ttobjs.c (tt_face_init): Ditto.
Fixes #1268.
2024-02-23 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (ft_var_to_normalized): Integer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=66543
2024-01-27 Alexei Podtelezhnikov <[email protected]>
Update all copyright notices.
2024-01-27 Alexei Podtelezhnikov <[email protected]>
* src/sfnt/ttgpos.c (tt_gpos_get_glyph_class): Fix warning C4018.
2024-01-27 David Saltzman <[email protected]>
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.
2024-01-14 Alexei Podtelezhnikov <[email protected]>
[smooth] Remove SSE2.
As a result of 7b308a29dd10, the regular 64-bit execution is now faster
than SSE2. The rendering speed of script fonts at 64 ppem or larger is
improved by about 3% without SSE2. See !314 for the testing results.
* src/smooth/ftgrays.c (gray_render_conic)[FT_INT64]: Remove SSE2 code.
2024-01-14 Alexei Podtelezhnikov <[email protected]>
* CMakeLists.txt: Accommodate MingGW.
See https://github.com/StephanTLavavej/mingw-distro/issues/97.
2024-01-08 Ozkan Sezer <[email protected]>
* src/sfnt/ttcolr.c (find_base_glyph_v1_record): Fix build in C90 mode.
2024-01-07 Alexei Podtelezhnikov <[email protected]>
[base] Fix up Mac resource forks and dfonts.
* src/base/ftobjs.c (IsMacResource): Assign `face_index`.
* src/base/ftmac.c (FT_New_Face_From_Suitcase): Ditto after rework.
2024-01-05 Alexei Podtelezhnikov <[email protected]>
[sfnt] Restrict POST version 1.0.
A font has surfaced with `post` version 1.0 and fewer than 258 glyphs.
Its glyphs did not correspond to their names. We now reject such `post`
strictly following specifications.
* src/sfnt/ttpost.c (tt_face_get_ps_name): Check the number of glyphs
for version 1.0.
2024-01-03 Alexei Podtelezhnikov <[email protected]>
* .gitlab-ci.yml: Use detached CI pipelines.
See issue freedesktop/freedesktop#540.
2024-01-02 Werner Lemberg <[email protected]>
[sfnt] Guard access in 'COLR' v1 glyph binary search.
Reported as
https://bugs.chromium.org/p/chromium/issues/detail?id=1505216
* src/sfnt/ttcolr.c (find_base_glyph_v1_record): Guard access of the search
pointer during binary search. The pointer needs to be checked as we go as
the test that compares number of v1 glyphs with table size at the time of
loading the table is not sufficient on its own.
A scenario is possible in which the `BaseGlyphRecord` list extends into
non-`BaseGlyphRecord` parts of the 'COLR' v1 table (but passed the size
comparison check). Then, at those locations, invalid glyph ID values are
read and may provoke an invalid read due to reassigning min and max values
during the binary search.
2023-12-18 Alexei Podtelezhnikov <[email protected]>
[ci] Add support for MSBuild on Windows.
This adds msbuild job for VS2019 (x64).
* .gitlab-ci.yml: Added "windows msbuild vs2019 amd64".
2023-12-14 Skef Iterum <[email protected]>
[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 Skef Iterum <[email protected]>
[psaux] Improve tracing.
* src/psaux/psintrp.c (cf2_doBlend, cf2_interpT2CharString [cf2_cmdBLEND]):
Show blended values.
2023-12-14 Jouk Jansen <[email protected]>
* vms_make.com: Switch to `clang`.
Also add proper bzip2 support.
2023-12-14 Werner Lemberg <[email protected]>
* src/truetype/ttgxvar.c (ft_var_to_normalized): Fix undefined left-shift.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=63723
2023-12-07 Alexei Podtelezhnikov <[email protected]>
[msbuild] Streamline the process.
MSBuild.exe can now be fired from the root folder without options.
* builds/windows/vc2010/freetype.sln: Relocated to...
* MSBuild.sln: ... here with minor changes.
* MSBuild.rsp: New file with command line options.
* docs/INSTALL: Reference `MSBuild.sln`.
2023-12-02 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftraster.c (Draw_Sweep): Swap stub conditions.
2023-12-02 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftmisc.h (FT_MulDiv): Remove unused copy.
2023-11-28 Alexei Podtelezhnikov <[email protected]>
[raster] Speed up Bézier arches with extrema.
While it is recommended to have an explicit point at each curve
extrema, they might be missing or outline could be rotated. This
leads to excessive bisections in raster to find them. This change
helps to decrease the number of bisections. The scanline
intersections remain monotonous, of course.
* src/raster/ftraster.c (Conic_To, Cubic_To): Check that control
points cross the scanlines to bisect.
2023-11-25 Alexei Podtelezhnikov <[email protected]>
* docs/*: Typos.
2023-11-24 Alexei Podtelezhnikov <[email protected]>
[raster] Eliminate intensive flow checking.
* src/raster/ftraster.c (Draw_Sweep): Pass the flow increment.
(Increment): Accept the flow increment.
2023-11-23 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftraster.c: Comments, defines, includes, cleanups.
2023-11-21 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftraster.c (FT_Outline_Get_CBox ) [STANDALONE_]: Removed.
2023-11-21 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftraster.c (Draw_Sweep): No-fault return.
(Render_Single_Pass): Updated.
2023-11-21 Alexei Podtelezhnikov <[email protected]>
[raster] Sweep polishing.
* src/raster/ftraster.c (*_Sweep_Span): Polish.
(*_Sweep_Drop): Restore tracing, polish.
(Draw_Sweep): Simplify the dropout processing loop.
2023-11-21 Alexei Podtelezhnikov <[email protected]>
[raster] Rearrange dropout control.
This reduces the code duplication.
* src/raster/ftraster.c (Function_Sweep_Span): Change signature.
(Vertical_Sweep_Drop, Horizontal_Sweep_Drop): Focus on pixel setting
and move duplicated the dropout control logic to...
(Draw_Sweep): ... this function and refactor.
(Vertical_Sweep_Span, Horizontal_Sweep_Span): Minor.
2023-11-21 Alexei Podtelezhnikov <[email protected]>
[raster] Use bitwise dropout mode interpretation.
* src/raster/ftraster.c (Vertical_Sweep_Drop, Horizontal_Sweep_Drop,
Draw_Sweep, Render_GLyph): Interpret dropout mode using bit masks.
2023-11-16 Alexei Podtelezhnikov <[email protected]>
* docs/CHANGES: Updated.
2023-11-16 Alexei Podtelezhnikov <[email protected]>
[raster] Keep only bottom y-turns.
This results in noticeable performance improvement.
* src/raster/ftraster.c (Insert_Y_Turns): All bottom y-turns are still
sorted and stored; only the maximum top y-turn is recorded now. The
function is renamed.
(End_Profile): Updated accordingly.
(Convert_Glyph): Reserve space for the top value.
2023-11-15 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftraster.c (End_Profile): Reduce branching.
(InsNew): Tweak condition.
2023-11-15 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftraster.c (Draw_Sweep): Use more natural loop.
2023-11-15 Alexei Podtelezhnikov <[email protected]>
[raster] Dissolve a loop.
* src/raster/ftraster.c (End_Profile): Set initial `X` here...
(Draw_Sweep): ... instead of here; delay the `start` decrement.
2023-11-15 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftraster.c: Comments.
2023-11-14 Alexei Podtelezhnikov <[email protected]>
[raster] Stylistic changes.
* src/raster/ftraster.c (Line_To): Code it similar to curves;
shortcut the flat lines here...
(Line_Up): ... instead of here.
2023-11-14 Alexei Podtelezhnikov <[email protected]>
[raster] Revise overshoot setting.
* src/raster/ftraster.c (New_Profile, End_Profile): Deal with overshoots
locally.
(Line_To, Conic_To, Cubic_To): Update callers.
2023-11-14 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftraster.c (Conic_To, Cubic_To): Fix recent regression.
2023-11-14 Alexei Podtelezhnikov <[email protected]>
* include/freetype/ftimage.h: Fix type and link.
2023-11-14 Alexei Podtelezhnikov <[email protected]>
* src/raster/ftraster.c (Increment): Minor tweak.