kmx git

Commit	Date	Message
15f68734	2022-10-04T23:36:09	Improve FT_Get_Name_Index docs and place it next to FT_Get_Glyph_Name.
0417527d	2022-10-03T19:23:26	[autofit] Reset the face charmap directly. There is no need to validate the original charmap in `FT_Set_Charmap`. It can be reset directly. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage): Use direct assignment. * src/autofit/af{latin,cjk,indic}.c (af_latin_metrics_init): Ditto.
1b6dce84	2022-10-03T19:18:48	* src/type1/t1afm.c (T1_Read_PFM): Set charmaps directly. As with the previous commit, we can avoid the validation checks of `FT_Set_Charmap` and set it directly when choosing from the available list.
8faf57dd	2022-10-03T17:13:30	* src/cache/ftccmap.c (FTC_CMapCache_Lookup): Avoid `FT_Set_Charmap`. Set charmap aggressively without all validations of `FT_Set_Charmap` because we take it from the available array and only temporarily. Even CMap Format 14 will gracefully return 0.
b93f20ab	2022-10-03T15:10:12	* src/cache/ftcbasic.c (ftc_basic_family_get_count): Remove redundancy.
de8f14a8	2022-09-30T23:25:02	* src/psaux/pshints.c (cf2_hintmap_insertHint): Fix midpoint computation. Replace '(start + end) / 2' with 'start + (end - start) / 2' to avoid overflow. Fixes #1180.
2adb810c	2022-09-30T17:00:10	* src/psaux/pshints.c (cf2_hintmap_build): Improve debugging output.
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`.
ff66e912	2022-09-29T17:46:23	* src/sfnt/ttsbit.c (tt_face_load_strike_metrics): Use lighter FT_DivFix.
5faa1df8	2022-09-29T18:25:41	[base] FT_Attach_Stream: Make `parameters` argument constant.
3f3427c6	2022-09-28T22:35:49	* src/tools/*.py: Migrate to Python 3. Fixes #1185, closes !205. Formatting changes according to PEP8.
df260139	2022-09-27T17:50:55	[sfnt] Guard access in 'COLR' table when requesting child table pointer. * src/sfnt/ttcolr.c (tt_face_get_colorline_stops, read_paint): Tighten pointer bounds checks. (get_child_table_pointer): Check whether incoming pointer `p` lies within the 'COLR' table. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=51816
bd417007	2022-09-26T14:46:42	[sfnt] Add SVG document bounds checking. Add a check that the document content is actually contained within the `SVG ` table. Without this check a malformed font may claim arbitrary memory as its document content. * src/sfnt/ttsvg.c (tt_face_load_svg): Take `numEntries` into account when testing 'documentRecord' extents. (find_doc): Rename `stream` to `document_records` for clarity. (tt_face_load_svg_doc): Split `doc` from `doc_list` pointer for clarity. Test that the document content is contained within the table. Ensure minimum length of document before testing for gzip format. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=51812
c9c32631	2022-09-22T20:40:21	[base] Clean up the bitmap flow control. * src/base/ftbitmap.c (FT_Bitmap_Copy): Flip the copy if its pitch is trully opposite, zero is not a positive value. (FT_Bitmap_Convert): Set negative pitch as needed, accept negative alignment values.
c456eeb4	2022-09-22T15:09:17	[base] Discard and recreate bitmaps for copying and converting. Reusing target bitmaps for copying and converting is permitted. It is, however, pointless to preserve their content before overwriting. Free- malloc might be faster than realloc. * src/base/ftbitmap.c (FT_Bitmap_Copy, FT_Bitmap_Convert): Free an old buffer and create a new one.
33ceac2a	2022-09-15T09:47:07	Reject 'COLR' table if version is 1 but header too small. * src/sfnt/ttcolr.c (tt_face_load_colr): If the version is determined to be 1, then the table size has to be at least the size of the v1 header. Also, for peeking the number of base glyphs and entries in the layer list, ensure that the table is sufficiently long. Fixes #1179. Original patch by Sergey Temnikov.
a0d15364	2022-09-15T09:14:06	* src/otvalid/otvgsub.c (otv_SingleSubst_validate): Fix format 1 handling. Fixes #1181.
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
91a7fae7	2022-09-05T15:49:27	[sfnt] Handle variable `COLR` v1 fonts without delta set index map Fixes #1178. * src/sfnt/ttcolr.c (get_deltas_for_var_index_base): Set outer index to 0 and inner index to the delta index when retrieving deltas if the `COLR` table has no delta set index map.
6d62076a	2022-08-30T15:00:37	[sfnt] Pointer sanity checks before reading layer info in 'COLR' v0 * src/sfnt/ttcolr.c (tt_face_get_colr_layer): Check that the pointer to read from is within the 'COLR' table. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50633
048f2e24	2022-09-05T10:43:59	[autofit] Minor fix. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage): Avoid compiler warning.
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.
dd91f6e7	2022-08-26T22:24:02	* src/base/ftver.rc: Explicitly use UTF-16. Fixes #1177 to avoid mistranslation and other problems.
4797b2ff	2022-08-26T12:08:34	[sfnt] Avoid undefined shifts in `COLR` v1 color line retrieval * src/sfnt/ttcolr.c (tt_face_get_colorline_stops): Disambiguate shift behavior by using multiplication using macros from ftcalc.h. Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50573
395da3d7	2022-08-19T16:08:26	CMakeLists.txt (FT_ENABLE_ERROR_STRINGS): New configuration option. This option uncomments FreeType configuration macro `FT_CONFIG_OPTION_ERROR_STRINGS` to make function `FT_Error_String` return meaningful error strings. This option is off by default.
37b718d5	2022-08-15T10:44:05	[base, type1] Better handling of out-of-memory situations. This follows similar code in `cff_slot_done`. * src/base/ftobjs.c (ft_glyphslot_done), src/type1/t1objs.c (T1_GlyphSlot_Done): Check `internal` pointer. The Type1 problems was reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50057.
7cd3f19f	2022-07-31T12:14:01	ci: bump windows image and use newer runner and vs2019 The old 1809 runner will be decommissioned at some point.
90e1e39f	2022-08-03T22:54:38	* src/cache/ftcmanag.c (FTC_Manager_New): Initialize `cur_weight`. See !192.
dcb5fc5b	2022-08-02T17:10:25	* src/sfnt/ttload.c: Trace formatting updates.
d53c1141	2022-08-02T12:57:39	* src/psaux/psobjs.c (ps_table_release): Remove redundant casting.
480be443	2022-08-01T22:59:58	* src/base/ftobjs.c (Mac_Read_sfnt_Resource): Reduce casting.
039b9071	2022-08-01T20:19:12	[cache] Remove some casts, clean up tracing. * src/cache/ftcbasic.c (FTC_ImageCache_Lookup, FTC_SBitCache_Lookup): Clean up tracing types. * src/cache/ftccache.c (ftc_node_destroy): Ditto. * src/cache/ftcmanag.c (FTC_Manager_Check): Ditto. (FTC_Manager_Check, FTC_Node_Unref): Remove a cast. * src/cache/ftccmap.c (FTC_CMapCache_Lookup): Ditto.
a18ad83e	2022-08-01T13:20:13	[autofit] Updated to reduce casting (cont'd). * src/autofit/afmodule.h (AF_ModuleRec): Change `default_script` type. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage): Remove casting. * src/autofit/afmodule.c (af_property_{set,get}): Updated accordingly.
4f195185	2022-08-01T09:52:43	[autofit] Updated to reduce casting. * src/autofit/afglobal.h (AF_FaceGlobalsRec): Change `glyph_count` type. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage, af_face_globals_get_metrics, af_face_globals_is_digit, af_face_globals_new): Changed local types and updated accordingly. * src/autofit/aflatin.c (af_latin_metrics_init_blues): Ditto.
9de432f7	2022-07-31T22:13:34	[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.
919561ca	2022-07-30T12:09:21	[sfnt] Implement VarClipBox. * src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Depending on the format, read `var_index_base`, then retrieve and apply scaled deltas.
649352ab	2022-07-30T12:09:09	[sfnt] Fix typo in clip box computation. * src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Use appropriate scale factor for `yMin` and `yMax`.
ee72e285	2022-07-29T22:55:28	[autofit] Use unsigned accounting for hints. * src/autofit/afhints.h (AF_AxisHintsRec): Use unsigned types. * src/autofit/afhints.c (af_axis_hints_new_{segment,edge}, af_glyph_hints_get_num_segments, af_glyph_hints_get_segment_offset): Updated accordingly. * src/autofit/aflatin.c (af_cjk_hints_compute_edges): Ditto. * src/autofit/afcjk.c (af_cjk_hints_compute_edges): Ditto.
fd02c369	2022-07-29T22:54:38	* src/autofit/afhints.h: Remove dead code.
2af6903b	2022-07-29T22:42:22	* src/base/ftglyph.c (FT_Get_Glyph): Set `*aglyph` to NULL in case of error.
a3749a64	2022-07-29T21:49:51	Fix compilation if `TT_CONFIG_OPTION_GX_VAR_SUPPORT` is not set. * src/sfnt/ttcolr.c: Protect relevant code with `TT_CONFIG_OPTION_GX_VAR_SUPPORT`.
38dc768a	2022-07-29T21:17:06	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`.
284956b5	2022-07-26T12:23:15	[pfr] Fortify the kerning code. Any array index must be strictly less then the array size. Therefore, we must reject indexes that are equal to the array size. Alternatively, we should move the bounds check before the index decrement but that would be confusing. In addition, it is ok to decrement zero (.notdef) and get UINT_MAX, which is then automatically rejected in the bounds check. * src/pfr/pfrobjs.c (pfr_face_get_kerning): Fix the bounds checking.
182295cb	2022-07-26T16:08:00	[pfr] Add some safety guards. * src/pfr/pfrload.c (pfr_phy_font_load): Check resolutions and number of characters. Fixes #1174.
1f005c09	2022-07-26T16:05:35	* src/pfr/*.c: Trivial improvements and formatting.
9a00282e	2022-07-24T19:44:24	* configure: s/egrep/grep -E/ `egrep` is deprecated.
0417e54b	2022-07-22T16:22:19	[base] Build outlines in amortized constant time. When resizing the loader's points and contours, resize them to at least 1.5 times their current size. The code currently only reserves as much space as is currently required, leading to O(n^2) runtime when adding points one at a time. This change does not attempt to ever shrink the loader's point and contour storage since this was not attempted previously either. The 1.5 multiple was chosen as a trade-off between potentially unused space and the runtime. * src/base/ftgloader.c (FT_GlyphLoader_CheckPoints): Implement it. Fixes #1173.
275b116b	2022-07-05T15:16:31	[sfnt] Support variable 'COLR' v1 `PaintVarSkew`. src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration values `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SKEW`, `FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER`, and `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SKEW_CENTER`. (read_paint): Handle new enumeration values.
44fd524e	2022-07-05T15:09:28	[sfnt] Support variable 'COLR' v1 `PaintVarRotate`. src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration values `FT_COLR_PAINTFORMAT_INTERNAL_VAR_ROTATE` and `FT_COLR_PAINTFORMAT_INTERNAL_VAR_ROTATE_CENTER`. (read_paint): Handle new enumeration values.
603fef28	2022-07-05T14:56:22	[sfnt] Support 'COLR' v1 variable `PaintVarScale`. src/sfnt/ttcolr.c: (FT_PaintFormatInternal): New enumeration values `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE`, `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE_CENTER`, `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE_UNIFORM`, and `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE_UNIFORM_CENTER`. (read_paint): Handle new enumeration values.
d134b9e3	2022-07-05T14:51:48	[sfnt] Support for 'COLR' v1 variable translate. * src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration value `FT_COLR_PAINTFORMAT_INTERNAL_VAR_TRANSLATE`. (read_paint): Handle new enumeration value.
8ec531c2	2022-07-05T14:47:57	[sfnt] Support for 'COLR' v1 variable transforms. * src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration value `FT_COLR_PAINTFORMAT_INTERNAL_VAR_TRANSFORM`. (read_paint): Handle new enumeration value.
9c4ad2a9	2022-07-05T14:43:10	[sfnt] Deltas for 'COLR' v1 gradient coordinates. * src/sfnt/ttcolr.c (read_paint) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Read and apply deltas to radial, linear, and sweep gradient coordinates such as 'p0', 'p1', 'p2', 'center', 'radii', and 'angles'.
3414fef7	2022-07-04T16:29:31	[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.
7c151abb	2022-07-04T12:44:06	[sfnt] Apply variation deltas to `PaintVarSolid`. * src/sfnt/ttcolr.c (FT_PaintFormat_Internal_): New enumeration `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SOLID`. (get_deltas_for_var_index_base) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New function to retrieve an array of delta values, which will be used for most of 'COLR' v1 variation formats (in follow-up commits). (read_paint): Add `face` parameter; update caller. Handle `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SOLID`.
8a9192f6	2022-07-07T13:02:10	[sfnt] Check safety of cast to `TT_Driver` before accessing member. * src/sfnt/ttcolr.c (VARIABLE_COLRV1_ENABLED): Access `enable_variable_colrv1` only if driver class matches.
d5d048bb	2022-07-03T20:26:31	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).
31b14fd4	2022-06-29T16:01:13	[sfnt] Load variation store for 'COLR' v1. * src/sfnt/ttcolr.c: Include `ttobjs.h` temporarily. (VARIABLE_COLRV1_ENABLED): New temporary macro to detect whether variable COLRv1 is enabled. (Colr): New fields `var_store` and `delta_set_idx_map`. (tt_face_load_colr, tt_face_free_colr) [VARIABLE_COLRV1_ENABLED]: Load and free variation store data using the functions from the Multiple Masters service.
1a242558	2022-06-30T09:25:14	[base] Improve error handling in `FT_GlyphLoader_CheckPoints`. If `FT_GlyphLoader_CreateExtra` returns an error (and a couple of other places), `FT_GlyphLoader_CheckPoints` would propagate the error immediately, rather than cleaning up the partially set up `FT_GlyphLoader`. As a consequence, a subsequent attempt to create a glyph could result in a crash. * src/base/ftgloadr.c (FT_GlyphLoader_CheckPoints): Ensure all the error conditions exits are consistent, eventually calling `FT_GlyphLoader_Reset`.
55a97b0c	2022-06-23T08:51:50	CMakeLists.txt: Provide both 'freetype' and 'Freetype::Freetype' targets. FreeType can be located by consuming projects that use `find_package(Freetype)` either via the old `MODULE` path (which uses `FindFreetype.cmake` supplied by CMake), or via the new `CONFIG` path (which uses `freetype-config.cmake` as supplied by this project). Up to this point the CMake module has supplied the target `Freetype::Freetype` and the config file provided by this project the target `freetype`. Now we supply both `freetype` and `Freetype::Freetype` so that consuming projects can always use the target `Freetype::Freetype` regardless of what path was taken by `find_package(Freetype)`. Fixes #1165.
31005d98	2022-07-02T09:34:13	include/freetype/ftmm.h: Improve documentation.
bec4ef41	2022-07-01T12:04:28	[base] Round values in `FT_MulAdd_Fix`. This avoids regressing Blink layout tests and makes `FT_MulAdd_Fix` delta retrieval implementation consistent with the previous implementation, which used `FT_fixedToInt` and included rounding. * src/base/ftcalc.c (FT_MulAdd_Fix): Implement it. Also fix remaining `temp` initialization compilation issue. Fixes #1169.
de27955c	2022-07-01T06:33:50	Minor formatting.
0607e0e9	2022-06-30T10:55:50	Fix initialisation of temp variable in new FT_MulAddFix src/truetype/ttgxvar.c (FT_MulAddFix): Initialise `temp`.
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`.
15fef219	2022-06-29T11:48:10	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.
2db58e06	2022-06-22T12:13:27	CMakeLists.txt: Move inclusion of `FindPkgConfig` down. It must come after `CMAKE_TOOLCHAIN_FILE`. Fixes #1167.
117df36b	2022-06-22T09:33:20	[sfnt] Upgrade stop_offset to FT_Fixed from FT_F2Dot14
5e48c88d	2022-06-21T17:34:29	* docs/CHANGES: Announce impending Infinality removal.
9006ff7d	2022-06-21T17:10:56	* ttgload.c (TT_Process_Composite_Glyph): Fix a signedness warning.
2848378b	2022-06-21T17:08:04	s/fixed point/fixed-point/
40c6f973	2022-06-21T14:45:42	.gitlab-ci.yml: Correctly upgrade `meson`.
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.
b861b241	2022-05-27T11:26:30	[meson] Disable FreeType in HarfBuzz fallback. This avoids cyclic subproject configuration when the 'harfbuzz' feature is enabled, or `--wrap-mode=forcefallback` is used, but HarfBuzz is built as a subproject. HarfBuzz does the same and disables HarfBuzz support when configuring FreeType as a subproject. * meson.build (harfbuzz_dep): Implement it. * subprojects/harfbuzz.wrap: New file. * .gitlab-ci.yml [windows meson]: Use latest version of the meson 0.59 series, which has a necessary bug fix to make CI work.
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.
f7daf9d2	2022-06-17T12:37:02	[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
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.
90795210	2022-06-15T16:07:22	[type1] Directly search for eexec in private dict This code originally just searched for `eexec`. This was later modified to check that the `eexec` found is valid (not in a string or comment). This was done by searching for `eexec` as before and then, for each `eexec` found, searching from the beginning using the correct parsing to see if the `eexec` was still found. If the private dictionary is large and contains many copies of `eexec` which are not valid, the initial part of the private dictionary is scanned once for each, potentially leading to n^2 parsing time. Instead of finding an initial `eexec` and then re-parsing to discover if it is valid, drop the initial search for `eexec` and just parse to find a valid `eexec`. This is strictly faster since the validation must happen anyway and avoids restarting from the beginning each time an `eexec` is found in the data. * src/type1/t1parse.c (T1_Get_Private_Dict): avoid n^2 parsing Bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1328883
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.
8bb7722a	2022-06-13T15:09:36	[gzip] Handle inflate returning Z_NEED_DICT When `inflate` returns `Z_NEED_DICT` this is currently not reported as an error and callers may assume that the decompression succeeded when it did not. In particular, a compressed table in a woff file may not actually be decompressed and written as expected, leaving the backing memory for the expanded table uninitialized. * src/gzlip/ftgzip.c (FT_Gzip_Uncompress): treat `Z_NEED_DICT` as indicating invalid data since there is no means to provide a dictionary. Bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1335712
58395dd2	2022-06-13T15:28:00	[woff] Don't allocate table entries until needed * src/sfnt/sfwoff.c (woff_open_font): delay allocating space for the table entries until they are actually written out with the data.
8b6bcc92	2022-06-12T09:04:13	* src/sfnt/sfwoff2.c (woff2_open_font): Partial revert. Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47981.
e7482ff4	2022-06-11T23:47:19	* src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Cosmetic macro change.
73631b95	2022-06-11T16:10:40	[woff, woff2] Avoid buffer zeroing. * src/sfnt/sfwoff.c (woff_open_font): Use Q-macros. * src/sfnt/sfwoff2.c: Ditto. (reconstruct_font): Allocate table_entry on stack.
4fef1fce	2022-06-10T11:34:56	[smooth] Fix GCC LTO crashes on Windows. Fixes #1164 by using a volatile variable around `setjmp`. It is hard to say how this fixes crashes related to certain link-time optimizations. This does not decrease the rendering performance. * src/smooth/ftgrays.c (gray_convert_glyph_inner): Use volatile `error`.
9acefc4f	2022-06-09T10:51:07	* src/smooth/ftgrays.c [FT_STATIC_RASTER]: Fix compilation.
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
c26872ed	2022-05-26T20:27:53	[svg] Clear correct flags for doc ownership This issue was discovered with an SVG based font with some documents compressed and other uncompressed. After loading the first compressed document the ownership flag on the glyph slot was set to true but never set to false. As a result after loading a compressed document a glyph from an uncompressed document would load fine, but when this glyph slot was cleared it would try to free its document resulting in a wild free. * src/base/ftobjs.c (ft_glyphslot_clear): clear correct flags Fixes: #1162
d6857981	2022-05-31T22:40:55	[docs] Correct favicon.
8addad60	2022-05-31T22:38:24	[docs] Use hinted favicon.
c26f0d0d	2022-05-26T23:48:26	[docs] Update favicon.
b98dd169	2022-05-25T14:49:37	* src/sfnt/ttmtx.c (tt_face_get_metrics): Apply variations unconditionally. This causes a speed-up of approx. 20% for getting advance widths.
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.
e3ac7bb6	2022-05-18T16:12:19	* builds/toplevel.mk (do-dist): Don't remove meson wrap files. Fixes #1157.
b4b7c3f6	2022-05-18T16:02:21	* subprojects/zlib.wrap: Update to zlib version 1.2.12.

15f68734

2022-10-04T23:36:09

Improve FT_Get_Name_Index docs and place it next to FT_Get_Glyph_Name.

0417527d

2022-10-03T19:23:26

[autofit] Reset the face charmap directly. There is no need to validate the original charmap in `FT_Set_Charmap`. It can be reset directly. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage): Use direct assignment. * src/autofit/af{latin,cjk,indic}.c (af_latin_metrics_init): Ditto.

1b6dce84

2022-10-03T19:18:48

* src/type1/t1afm.c (T1_Read_PFM): Set charmaps directly. As with the previous commit, we can avoid the validation checks of `FT_Set_Charmap` and set it directly when choosing from the available list.

8faf57dd

2022-10-03T17:13:30

* src/cache/ftccmap.c (FTC_CMapCache_Lookup): Avoid `FT_Set_Charmap`. Set charmap aggressively without all validations of `FT_Set_Charmap` because we take it from the available array and only temporarily. Even CMap Format 14 will gracefully return 0.

b93f20ab

2022-10-03T15:10:12

* src/cache/ftcbasic.c (ftc_basic_family_get_count): Remove redundancy.

de8f14a8

2022-09-30T23:25:02

* src/psaux/pshints.c (cf2_hintmap_insertHint): Fix midpoint computation. Replace '(start + end) / 2' with 'start + (end - start) / 2' to avoid overflow. Fixes #1180.

2adb810c

2022-09-30T17:00:10

* src/psaux/pshints.c (cf2_hintmap_build): Improve debugging output.

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`.

ff66e912

2022-09-29T17:46:23

* src/sfnt/ttsbit.c (tt_face_load_strike_metrics): Use lighter FT_DivFix.

5faa1df8

2022-09-29T18:25:41

[base] FT_Attach_Stream: Make `parameters` argument constant.

3f3427c6

2022-09-28T22:35:49

* src/tools/*.py: Migrate to Python 3. Fixes #1185, closes !205. Formatting changes according to PEP8.

df260139

2022-09-27T17:50:55

[sfnt] Guard access in 'COLR' table when requesting child table pointer. * src/sfnt/ttcolr.c (tt_face_get_colorline_stops, read_paint): Tighten pointer bounds checks. (get_child_table_pointer): Check whether incoming pointer `p` lies within the 'COLR' table. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=51816

bd417007

2022-09-26T14:46:42

[sfnt] Add SVG document bounds checking. Add a check that the document content is actually contained within the `SVG ` table. Without this check a malformed font may claim arbitrary memory as its document content. * src/sfnt/ttsvg.c (tt_face_load_svg): Take `numEntries` into account when testing 'documentRecord' extents. (find_doc): Rename `stream` to `document_records` for clarity. (tt_face_load_svg_doc): Split `doc` from `doc_list` pointer for clarity. Test that the document content is contained within the table. Ensure minimum length of document before testing for gzip format. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=51812

c9c32631

2022-09-22T20:40:21

[base] Clean up the bitmap flow control. * src/base/ftbitmap.c (FT_Bitmap_Copy): Flip the copy if its pitch is trully opposite, zero is not a positive value. (FT_Bitmap_Convert): Set negative pitch as needed, accept negative alignment values.

c456eeb4

2022-09-22T15:09:17

[base] Discard and recreate bitmaps for copying and converting. Reusing target bitmaps for copying and converting is permitted. It is, however, pointless to preserve their content before overwriting. Free- malloc might be faster than realloc. * src/base/ftbitmap.c (FT_Bitmap_Copy, FT_Bitmap_Convert): Free an old buffer and create a new one.

33ceac2a

2022-09-15T09:47:07

Reject 'COLR' table if version is 1 but header too small. * src/sfnt/ttcolr.c (tt_face_load_colr): If the version is determined to be 1, then the table size has to be at least the size of the v1 header. Also, for peeking the number of base glyphs and entries in the layer list, ensure that the table is sufficiently long. Fixes #1179. Original patch by Sergey Temnikov.

a0d15364

2022-09-15T09:14:06

* src/otvalid/otvgsub.c (otv_SingleSubst_validate): Fix format 1 handling. Fixes #1181.

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

91a7fae7

2022-09-05T15:49:27

[sfnt] Handle variable `COLR` v1 fonts without delta set index map Fixes #1178. * src/sfnt/ttcolr.c (get_deltas_for_var_index_base): Set outer index to 0 and inner index to the delta index when retrieving deltas if the `COLR` table has no delta set index map.

6d62076a

2022-08-30T15:00:37

[sfnt] Pointer sanity checks before reading layer info in 'COLR' v0 * src/sfnt/ttcolr.c (tt_face_get_colr_layer): Check that the pointer to read from is within the 'COLR' table. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50633

048f2e24

2022-09-05T10:43:59

[autofit] Minor fix. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage): Avoid compiler warning.

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.

dd91f6e7

2022-08-26T22:24:02

* src/base/ftver.rc: Explicitly use UTF-16. Fixes #1177 to avoid mistranslation and other problems.

4797b2ff

2022-08-26T12:08:34

[sfnt] Avoid undefined shifts in `COLR` v1 color line retrieval * src/sfnt/ttcolr.c (tt_face_get_colorline_stops): Disambiguate shift behavior by using multiplication using macros from ftcalc.h. Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50573

395da3d7

2022-08-19T16:08:26

CMakeLists.txt (FT_ENABLE_ERROR_STRINGS): New configuration option. This option uncomments FreeType configuration macro `FT_CONFIG_OPTION_ERROR_STRINGS` to make function `FT_Error_String` return meaningful error strings. This option is off by default.

37b718d5

2022-08-15T10:44:05

[base, type1] Better handling of out-of-memory situations. This follows similar code in `cff_slot_done`. * src/base/ftobjs.c (ft_glyphslot_done), src/type1/t1objs.c (T1_GlyphSlot_Done): Check `internal` pointer. The Type1 problems was reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50057.

7cd3f19f

2022-07-31T12:14:01

ci: bump windows image and use newer runner and vs2019 The old 1809 runner will be decommissioned at some point.

90e1e39f

2022-08-03T22:54:38

* src/cache/ftcmanag.c (FTC_Manager_New): Initialize `cur_weight`. See !192.

dcb5fc5b

2022-08-02T17:10:25

* src/sfnt/ttload.c: Trace formatting updates.

d53c1141

2022-08-02T12:57:39

* src/psaux/psobjs.c (ps_table_release): Remove redundant casting.

480be443

2022-08-01T22:59:58

* src/base/ftobjs.c (Mac_Read_sfnt_Resource): Reduce casting.

039b9071

2022-08-01T20:19:12

[cache] Remove some casts, clean up tracing. * src/cache/ftcbasic.c (FTC_ImageCache_Lookup, FTC_SBitCache_Lookup): Clean up tracing types. * src/cache/ftccache.c (ftc_node_destroy): Ditto. * src/cache/ftcmanag.c (FTC_Manager_Check): Ditto. (FTC_Manager_Check, FTC_Node_Unref): Remove a cast. * src/cache/ftccmap.c (FTC_CMapCache_Lookup): Ditto.

a18ad83e

2022-08-01T13:20:13

[autofit] Updated to reduce casting (cont'd). * src/autofit/afmodule.h (AF_ModuleRec): Change `default_script` type. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage): Remove casting. * src/autofit/afmodule.c (af_property_{set,get}): Updated accordingly.

4f195185

2022-08-01T09:52:43

[autofit] Updated to reduce casting. * src/autofit/afglobal.h (AF_FaceGlobalsRec): Change `glyph_count` type. * src/autofit/afglobal.c (af_face_globals_compute_style_coverage, af_face_globals_get_metrics, af_face_globals_is_digit, af_face_globals_new): Changed local types and updated accordingly. * src/autofit/aflatin.c (af_latin_metrics_init_blues): Ditto.

9de432f7

2022-07-31T22:13:34

[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.

919561ca

2022-07-30T12:09:21

[sfnt] Implement VarClipBox. * src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Depending on the format, read `var_index_base`, then retrieve and apply scaled deltas.

649352ab

2022-07-30T12:09:09

[sfnt] Fix typo in clip box computation. * src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Use appropriate scale factor for `yMin` and `yMax`.

ee72e285

2022-07-29T22:55:28

[autofit] Use unsigned accounting for hints. * src/autofit/afhints.h (AF_AxisHintsRec): Use unsigned types. * src/autofit/afhints.c (af_axis_hints_new_{segment,edge}, af_glyph_hints_get_num_segments, af_glyph_hints_get_segment_offset): Updated accordingly. * src/autofit/aflatin.c (af_cjk_hints_compute_edges): Ditto. * src/autofit/afcjk.c (af_cjk_hints_compute_edges): Ditto.

fd02c369

2022-07-29T22:54:38

* src/autofit/afhints.h: Remove dead code.

2af6903b

2022-07-29T22:42:22

* src/base/ftglyph.c (FT_Get_Glyph): Set `*aglyph` to NULL in case of error.

a3749a64

2022-07-29T21:49:51

Fix compilation if `TT_CONFIG_OPTION_GX_VAR_SUPPORT` is not set. * src/sfnt/ttcolr.c: Protect relevant code with `TT_CONFIG_OPTION_GX_VAR_SUPPORT`.

38dc768a

2022-07-29T21:17:06

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`.

284956b5

2022-07-26T12:23:15

[pfr] Fortify the kerning code. Any array index must be strictly less then the array size. Therefore, we must reject indexes that are equal to the array size. Alternatively, we should move the bounds check before the index decrement but that would be confusing. In addition, it is ok to decrement zero (.notdef) and get UINT_MAX, which is then automatically rejected in the bounds check. * src/pfr/pfrobjs.c (pfr_face_get_kerning): Fix the bounds checking.

182295cb

2022-07-26T16:08:00

[pfr] Add some safety guards. * src/pfr/pfrload.c (pfr_phy_font_load): Check resolutions and number of characters. Fixes #1174.

1f005c09

2022-07-26T16:05:35

* src/pfr/*.c: Trivial improvements and formatting.

9a00282e

2022-07-24T19:44:24

* configure: s/egrep/grep -E/ `egrep` is deprecated.

0417e54b

2022-07-22T16:22:19

[base] Build outlines in amortized constant time. When resizing the loader's points and contours, resize them to at least 1.5 times their current size. The code currently only reserves as much space as is currently required, leading to O(n^2) runtime when adding points one at a time. This change does not attempt to ever shrink the loader's point and contour storage since this was not attempted previously either. The 1.5 multiple was chosen as a trade-off between potentially unused space and the runtime. * src/base/ftgloader.c (FT_GlyphLoader_CheckPoints): Implement it. Fixes #1173.

275b116b

2022-07-05T15:16:31

[sfnt] Support variable 'COLR' v1 `PaintVarSkew*`. * src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration values `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SKEW`, `FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER`, and `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SKEW_CENTER`. (read_paint): Handle new enumeration values.

44fd524e

2022-07-05T15:09:28

[sfnt] Support variable 'COLR' v1 `PaintVarRotate*`. * src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration values `FT_COLR_PAINTFORMAT_INTERNAL_VAR_ROTATE` and `FT_COLR_PAINTFORMAT_INTERNAL_VAR_ROTATE_CENTER`. (read_paint): Handle new enumeration values.

603fef28

2022-07-05T14:56:22

[sfnt] Support 'COLR' v1 variable `PaintVarScale*`. * src/sfnt/ttcolr.c: (FT_PaintFormatInternal): New enumeration values `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE`, `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE_CENTER`, `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE_UNIFORM`, and `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE_UNIFORM_CENTER`. (read_paint): Handle new enumeration values.

d134b9e3

2022-07-05T14:51:48

[sfnt] Support for 'COLR' v1 variable translate. * src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration value `FT_COLR_PAINTFORMAT_INTERNAL_VAR_TRANSLATE`. (read_paint): Handle new enumeration value.

8ec531c2

2022-07-05T14:47:57

[sfnt] Support for 'COLR' v1 variable transforms. * src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration value `FT_COLR_PAINTFORMAT_INTERNAL_VAR_TRANSFORM`. (read_paint): Handle new enumeration value.

9c4ad2a9

2022-07-05T14:43:10

[sfnt] Deltas for 'COLR' v1 gradient coordinates. * src/sfnt/ttcolr.c (read_paint) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Read and apply deltas to radial, linear, and sweep gradient coordinates such as 'p0', 'p1', 'p2', 'center', 'radii', and 'angles'.

3414fef7

2022-07-04T16:29:31

[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.

7c151abb

2022-07-04T12:44:06

[sfnt] Apply variation deltas to `PaintVarSolid`. * src/sfnt/ttcolr.c (FT_PaintFormat_Internal_): New enumeration `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SOLID`. (get_deltas_for_var_index_base) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New function to retrieve an array of delta values, which will be used for most of 'COLR' v1 variation formats (in follow-up commits). (read_paint): Add `face` parameter; update caller. Handle `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SOLID`.

8a9192f6

2022-07-07T13:02:10

[sfnt] Check safety of cast to `TT_Driver` before accessing member. * src/sfnt/ttcolr.c (VARIABLE_COLRV1_ENABLED): Access `enable_variable_colrv1` only if driver class matches.

d5d048bb

2022-07-03T20:26:31

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).

31b14fd4

2022-06-29T16:01:13

[sfnt] Load variation store for 'COLR' v1. * src/sfnt/ttcolr.c: Include `ttobjs.h` temporarily. (VARIABLE_COLRV1_ENABLED): New temporary macro to detect whether variable COLRv1 is enabled. (Colr): New fields `var_store` and `delta_set_idx_map`. (tt_face_load_colr, tt_face_free_colr) [VARIABLE_COLRV1_ENABLED]: Load and free variation store data using the functions from the Multiple Masters service.

1a242558

2022-06-30T09:25:14

[base] Improve error handling in `FT_GlyphLoader_CheckPoints`. If `FT_GlyphLoader_CreateExtra` returns an error (and a couple of other places), `FT_GlyphLoader_CheckPoints` would propagate the error immediately, rather than cleaning up the partially set up `FT_GlyphLoader`. As a consequence, a subsequent attempt to create a glyph could result in a crash. * src/base/ftgloadr.c (FT_GlyphLoader_CheckPoints): Ensure all the error conditions exits are consistent, eventually calling `FT_GlyphLoader_Reset`.

55a97b0c

2022-06-23T08:51:50

CMakeLists.txt: Provide both 'freetype' and 'Freetype::Freetype' targets. FreeType can be located by consuming projects that use `find_package(Freetype)` either via the old `MODULE` path (which uses `FindFreetype.cmake` supplied by CMake), or via the new `CONFIG` path (which uses `freetype-config.cmake` as supplied by this project). Up to this point the CMake module has supplied the target `Freetype::Freetype` and the config file provided by this project the target `freetype`. Now we supply both `freetype` and `Freetype::Freetype` so that consuming projects can always use the target `Freetype::Freetype` regardless of what path was taken by `find_package(Freetype)`. Fixes #1165.

31005d98

2022-07-02T09:34:13

include/freetype/ftmm.h: Improve documentation.

bec4ef41

2022-07-01T12:04:28

[base] Round values in `FT_MulAdd_Fix`. This avoids regressing Blink layout tests and makes `FT_MulAdd_Fix` delta retrieval implementation consistent with the previous implementation, which used `FT_fixedToInt` and included rounding. * src/base/ftcalc.c (FT_MulAdd_Fix): Implement it. Also fix remaining `temp` initialization compilation issue. Fixes #1169.

de27955c

2022-07-01T06:33:50

Minor formatting.

0607e0e9

2022-06-30T10:55:50

Fix initialisation of temp variable in new FT_MulAddFix src/truetype/ttgxvar.c (FT_MulAddFix): Initialise `temp`.

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`.

15fef219

2022-06-29T11:48:10

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.

2db58e06

2022-06-22T12:13:27

CMakeLists.txt: Move inclusion of `FindPkgConfig` down. It must come after `CMAKE_TOOLCHAIN_FILE`. Fixes #1167.

117df36b

2022-06-22T09:33:20

[sfnt] Upgrade stop_offset to FT_Fixed from FT_F2Dot14

5e48c88d

2022-06-21T17:34:29

* docs/CHANGES: Announce impending Infinality removal.

9006ff7d

2022-06-21T17:10:56

* ttgload.c (TT_Process_Composite_Glyph): Fix a signedness warning.

2848378b

2022-06-21T17:08:04

s/fixed point/fixed-point/

40c6f973

2022-06-21T14:45:42

.gitlab-ci.yml: Correctly upgrade `meson`.

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.

b861b241

2022-05-27T11:26:30

[meson] Disable FreeType in HarfBuzz fallback. This avoids cyclic subproject configuration when the 'harfbuzz' feature is enabled, or `--wrap-mode=forcefallback` is used, but HarfBuzz is built as a subproject. HarfBuzz does the same and disables HarfBuzz support when configuring FreeType as a subproject. * meson.build (harfbuzz_dep): Implement it. * subprojects/harfbuzz.wrap: New file. * .gitlab-ci.yml [windows meson]: Use latest version of the meson 0.59 series, which has a necessary bug fix to make CI work.

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.

f7daf9d2

2022-06-17T12:37:02

[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

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.

90795210

2022-06-15T16:07:22

[type1] Directly search for eexec in private dict This code originally just searched for `eexec`. This was later modified to check that the `eexec` found is valid (not in a string or comment). This was done by searching for `eexec` as before and then, for each `eexec` found, searching from the beginning using the correct parsing to see if the `eexec` was still found. If the private dictionary is large and contains many copies of `eexec` which are not valid, the initial part of the private dictionary is scanned once for each, potentially leading to n^2 parsing time. Instead of finding an initial `eexec` and then re-parsing to discover if it is valid, drop the initial search for `eexec` and just parse to find a valid `eexec`. This is strictly faster since the validation must happen anyway and avoids restarting from the beginning each time an `eexec` is found in the data. * src/type1/t1parse.c (T1_Get_Private_Dict): avoid n^2 parsing Bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1328883

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.

8bb7722a

2022-06-13T15:09:36

[gzip] Handle inflate returning Z_NEED_DICT When `inflate` returns `Z_NEED_DICT` this is currently not reported as an error and callers may assume that the decompression succeeded when it did not. In particular, a compressed table in a woff file may not actually be decompressed and written as expected, leaving the backing memory for the expanded table uninitialized. * src/gzlip/ftgzip.c (FT_Gzip_Uncompress): treat `Z_NEED_DICT` as indicating invalid data since there is no means to provide a dictionary. Bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1335712

58395dd2

2022-06-13T15:28:00

[woff] Don't allocate table entries until needed * src/sfnt/sfwoff.c (woff_open_font): delay allocating space for the table entries until they are actually written out with the data.

8b6bcc92

2022-06-12T09:04:13

* src/sfnt/sfwoff2.c (woff2_open_font): Partial revert. Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47981.

e7482ff4

2022-06-11T23:47:19

* src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Cosmetic macro change.

73631b95

2022-06-11T16:10:40

[woff, woff2] Avoid buffer zeroing. * src/sfnt/sfwoff.c (woff_open_font): Use Q-macros. * src/sfnt/sfwoff2.c: Ditto. (reconstruct_font): Allocate table_entry on stack.

4fef1fce

2022-06-10T11:34:56

[smooth] Fix GCC LTO crashes on Windows. Fixes #1164 by using a volatile variable around `setjmp`. It is hard to say how this fixes crashes related to certain link-time optimizations. This does not decrease the rendering performance. * src/smooth/ftgrays.c (gray_convert_glyph_inner): Use volatile `error`.

9acefc4f

2022-06-09T10:51:07

* src/smooth/ftgrays.c [FT_STATIC_RASTER]: Fix compilation.

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

c26872ed

2022-05-26T20:27:53

[svg] Clear correct flags for doc ownership This issue was discovered with an SVG based font with some documents compressed and other uncompressed. After loading the first compressed document the ownership flag on the glyph slot was set to true but never set to false. As a result after loading a compressed document a glyph from an uncompressed document would load fine, but when this glyph slot was cleared it would try to free its document resulting in a wild free. * src/base/ftobjs.c (ft_glyphslot_clear): clear correct flags Fixes: #1162

d6857981

2022-05-31T22:40:55

[docs] Correct favicon.

8addad60

2022-05-31T22:38:24

[docs] Use hinted favicon.

c26f0d0d

2022-05-26T23:48:26

[docs] Update favicon.

b98dd169

2022-05-25T14:49:37

* src/sfnt/ttmtx.c (tt_face_get_metrics): Apply variations unconditionally. This causes a speed-up of approx. 20% for getting advance widths.

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.

e3ac7bb6

2022-05-18T16:12:19

* builds/toplevel.mk (do-dist): Don't remove meson wrap files. Fixes #1157.

b4b7c3f6

2022-05-18T16:02:21

* subprojects/zlib.wrap: Update to zlib version 1.2.12.

kc3-lang/freetype

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