Commit Graph

7450 Commits

Author SHA1 Message Date
Alexei Podtelezhnikov 946e1353ea [cache] Partially revert 9870b6c07e.
Fix crashes reported by Werner.

* src/cache/ftcmru.c (FTC_MruList_New): Use `FT_ALLOC` again.
2022-01-31 14:19:07 +00:00
Werner Lemberg 36ee3160a0 freetype.h: Minor documentation improvement. 2022-01-31 10:37:56 +01:00
Alexei Podtelezhnikov 983d435865 [cache] Fix fallouts from edd4fedc54.
Reported by Werner.

* src/cache/ftcimage.c (FTC_INode_New): Always initialize FT_Glyph.
* src/cache/ftcsbits.c (FTC_SNode_New): Always initialize FT_SBit.
2022-01-30 22:13:51 -05:00
Alexei Podtelezhnikov bee8886408 Clean-up - do not doubt FT_FREE.
* src/base/ftobjs.c (memory_stream_close): Do not reassign zero
after `FT_FREE`.
* src/sfnt/sfwoff.c (sfnt_stream_close): Ditto.
* src/sfnt/sfwoff2.c (stream_close): Ditto.
* src/psaux/psobjs.c (ps_parser_load_field): Ditto.
* src/truetype/ttgxvar.c (ft_var_load_avar, tt_set_mm_blend,
tt_set_mm_blend): Ditto.
2022-01-30 21:55:21 -05:00
Werner Lemberg 7fd03a3e25 * CMakeLists.txt: Include 'FindPkgConfig' module.
Older cmake versions don't provide `pkg_check_modules` by default.

Fixes #1126.
2022-01-30 20:50:42 +01:00
Alexei Podtelezhnikov da877c8693 * src/psaux/psobjs.c (ps_parser_load_field): Reduce `string` scope. 2022-01-29 22:46:56 -05:00
suzuki toshiya 35740aa6a9 [cmake] Check the availability of `bzip2.pc'.
(CMakeLists.txt): Check the availability of `bzip2.pc'.

* If `bzip2.pc' is available, Requires.private should include
bzip2, but Libs.private should not include -lbz2.

* If `bzip2.pc' is unavailable, Requires.private cannot include
bzip2, but Libs.private should include -lbz2.

Fix #897.
2022-01-29 01:36:12 +00:00
Werner Lemberg fa226478b1 * unix/configure.raw: We need 'librsvg' version 2.46.0 or newer.
Older versions don't have function `rsvg_handle_get_intrinsic_dimensions`.
2022-01-28 15:20:12 +01:00
Alexei Podtelezhnikov b34741c1cc Minor clean-ups.
* src/base/ftrfork.c (raccess_make_file_name): Do not set error.
* src/sfnt/sfdriver.c (get_win_string, get_apple_string): Ditto.
* src/cff/cffobjs.c (cff_strcpy): Do not confuse about error.
* src/psaux/psobjs.c (ps_table_done): Ditto.
* src/truetype/ttgxvar.c (ft_var_readpacked*, ft_var_load_avar): Ditto.
2022-01-27 22:55:34 -05:00
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
Anuj Verma ab1c98ac18 Fix sdf computation while `USE_SQUARED_DISTANCES`.
Function `map_fixed_to_sdf` expects spread to be absolute
and not squared.

* src/sdf/ftbsdf.c (finalize_sdf): Pass absolute spread
while `map_fixed_to_sdf`.

* src/sdf/ftsdf.c (sdf_generate_bounding_box): Ditto.
2022-01-27 18:01:08 +05:30
Tapish Ojha 3d77756e73 [sfnt] Improve sRGB constants.
* src/base/ftbitmap.c (ft_gray_for_premultiplied_srgb_bgra): Use slightly
more precise values.

Fixes #1018.
2022-01-27 08:43:19 +01:00
Werner Lemberg 9476cb7eb3 docs/release: Updated. 2022-01-27 08:32:42 +01:00
Alexei Podtelezhnikov 837f0345a9 * src/pfr/pfrload.c (pfr_phy_font_load): Use FT_QNEW_ARRAY. 2022-01-26 15:49:24 -05:00
Alexei Podtelezhnikov 0ac535900b * src/sdf/ftsdf.c (sdf_*_new): Use standard macro. 2022-01-26 14:02:27 -05:00
Alexei Podtelezhnikov 09223ef929 [pcf] Delay encoding allocation and avoid its zeroing.
* src/pcf/pcfread.c (pcf_get_encodings): Refactor and use FT_QNEW_ARRAY.
2022-01-26 11:23:38 -05:00
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 8b7226bb43 * builds/unix/configure.raw (FT_DEMO_CFLAGS): Pass `-DHAVE-LIBRSVG`.
This helps in decoupling library support from `pkg-config` for other
platforms.
2022-01-25 14:28:45 +01:00
Werner Lemberg 6a8e95b7a0 Update documentation for `FT_LOAD_COLOR`. 2022-01-25 08:49:41 +01:00
Ben Wagner 5e9caaee78 [pshinter] Ensure all point flags are initialized.
Only off curve point flags were fully initialized.

* src/pshinter/pshalgo.c (psh_glyph_init): always initialize flags.

Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43930
2022-01-24 12:24:59 -05:00
Werner Lemberg 657745212b .mailmap: Typo. 2022-01-24 07:57:20 +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 cddfe6574b .mailmap: Updated. 2022-01-23 12:37:48 +01:00
Werner Lemberg 21d0fa3742 More documentation on handling OT-SVG. 2022-01-23 12:23:47 +01:00
Werner Lemberg 9c1538525b * src/svg/ftsvg.c: Rename `svg_hooks` to `svg-hooks` for consistency. 2022-01-23 08:56:17 +01:00
Werner Lemberg 112527dd44 [sfnt] Reject malformed SVG tables.
* src/sfnt/ttsvg.c (SVG_TABLE_HEADER_SIZE, SVG_DOCUMENT_RECORD_SIZE,
SVG_DOCUMENT_LIST_MINIMUM_SIZE, SVG_MINIMUM_SIZE): New macros.
(tt_face_load_svg): Check offsets.
Check table and record sizes.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43918
2022-01-22 12:09:08 +01:00
Alexei Podtelezhnikov 706c79a1da * src/psaux/psobjs.c (ps_table_new): Revert to zeroing. 2022-01-21 22:46:35 -05:00
Alexei Podtelezhnikov 0d2b4952a3 [psaux, type1, type42] Avoid annecessary zeroing.
* src/psaux/psobjs.c (ps_table_new): Use FT_QNEW_ARRAY.
* src/type1/t1load.c (parse_encoding): Ditto.
* src/type42/t42parse.c (t42_parse_encoding): Ditto.
2022-01-20 14:47:01 -05:00
Werner Lemberg 02fa26f4cd [builds/unix] Handle 'librsvg' for demo programs.
* builds/unix/configure.raw: Check for 'librsvg'.
(LIB_CLOCK_GETTIME): Don't call `AC_SUBST` on this but on...
(FT_DEMO_CFLAGS, FT_DEMO_LDFLAGS): ... these two new variables.

* builds/unix/unix-cc.in (LIB_CLOCK_GETTIME): Replaced by...
(FT_DEMO_CFLAGS, FT_DEMO_LDFLAGS): ... these two new variables.
2022-01-20 16:45:18 +00:00
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 5cf01aa2b2 [truetype, cff] Add code to load SVG document.
* src/cff/cffgload.c (cff_slot_load): Add code to load SVG doc.
* src/truetype/ttgload.c (TT_Load_Glyph): Add code to load SVG doc.
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 0b635b1eb2 [pshinter] Avoid unnecessary zeroing.
* src/pshinter/pshalgo.c (psh_hint_table_init,psh_glyph_init,
psh_glyph_interpolate_normal_points): Use FT_QNEW_ARRAY.
2022-01-20 15:06:25 +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
Alexei Podtelezhnikov 773e31c783 * src/autofit/afglobal.c (af_face_globals_new): Reduce zeroing.
Everything in AF_FaceGlobals is initialized except metrics.  Those
are zeroed here and initialized on demand later.
2022-01-18 14:05:46 -05:00
Alexei Podtelezhnikov d118bf8e35 [bdf,type1] Avoid unnecessary hash zeroing.
* src/bdf/bdflib.c (_bdf_parse_start): Use `FT_QALLOC`.
* src/type1/t1load.c (parse_subrs): Use `FT_QNEW`.
2022-01-15 23:09:53 -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
Ben Wagner 5e227133c1 [pshinter] Avoid accessing uninitialized zone.
The `normal_top.count` may be 0, implying no `normal_top.zones` exist.
The code must not access these (non-existent) `normal_top.zones`.

* src/pshinter/pshalgo.c (ps_hints_apply): Do not assume that
`normal_top.zones[0]` is initialized. Test `normal_top.count`
before using `normal_top.zones[0]`. Do not rescale if there are no
`zones`.

Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43675
2022-01-15 17:21:39 -05:00
Alexei Podtelezhnikov edd4fedc54 [cache] Avoid unnecessary zeroing.
* src/cache/ftccmap.c (ftc_cmap_node_new): Use `FT_QNEW`.
* src/cache/ftcimage.c (FTC_INode_New): Ditto.
* src/cache/ftcsbits.c (FTC_SNode_New): Ditto.
2022-01-14 22:53:57 -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 ba5d661f34 * src/sdf/ftbsdf.c (ED): s/near/prox/.
This works around the Watcom C definition of `near` as restricted
__near.
2022-01-14 21:54:17 -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
Alexei Podtelezhnikov 7eb9a9dbbe * src/pshinter/pshglob.c (psh_globals_new): Avoid zeroing.
This large allocation is followed by careful initialization. Whatever
is missed should be initialized manually.
2022-01-14 14:40:11 -05:00
Alexei Podtelezhnikov 81b81feb62 * src/base/fthash.c (hash_insert): Avoid unnecessary zeroing. 2022-01-14 18:22:23 +00:00
Alexei Podtelezhnikov 904ad21266 * src/bdf/bdflib.c (_bdf_parse_glyphs): Remove redundant assignment. 2022-01-13 23:38:56 -05:00
Alexei Podtelezhnikov ee52b57121 * src/lzw/ftlzw.c (FT_Stream_OpenLZW): Avoid unnecessary zeroing. 2022-01-13 09:45:48 -05:00