Commit Graph

7429 Commits

Author SHA1 Message Date
Alexei Podtelezhnikov aee1fd3bb8 Cosmetic zeros. 2021-09-03 22:13:22 -04:00
Alexei Podtelezhnikov 7bf655b228 * src/bdf/bdflib.c (_bdf_parse_start): Keep parser memory. 2021-09-03 11:31:41 -04:00
Werner Lemberg d1d3dc0235 autogen.sh: Make it work with old Solaris 10 shell. 2021-09-02 22:12:07 -07:00
Alexei Podtelezhnikov 7f8f0c1c70 [smooth, raster, sdf] Clean up initialization calls.
* src/raster/ftraster.c (ft_black_init): Removed.
(ft_black_new): Clean up.
* src/sdf/ftbsdf.c (bsdf_raster_new): Ditto.
* src/sdf/ftsdf.c (sdf_raster_new): Ditto.
* src/smooth/ftgrays.c (gray_raster_new): Ditto.
2021-09-02 23:30:31 -04:00
Alexei Podtelezhnikov a7b199d081 * src/cache/ftcmanag.c (FTC_Manager_New): Avoid some zeroing. 2021-09-02 22:58:50 -04:00
Alexei Podtelezhnikov 0a6f0f8fed * src/bdf/bdflib.c (bdf_load_font): Remove memory shuffling. 2021-09-02 22:52:21 -04:00
Alexei Podtelezhnikov a81cf5aade Cosmetic zeros. 2021-09-02 22:10:57 -04:00
Alexei Podtelezhnikov 7482c98f15 [base] Clean up stream reading.
* src/base/ftstream.c (FT_Stream_ReadUShort, FT_Stream_ReadUOffset,
FT_Stream_ReadULong and their LE variants): Remove unnecessary
initialization and slightly refactor.
(FT_Stream_GetByte, FT_Stream_ReadByte): Rename to return unsigned
value and align with sister functions.

* include/freetype/internal/ftstream.h (FT_Stream_GetByte,
FT_Stream_ReadByte): Update prototypes and caller macros.
2021-09-01 22:18:29 -04:00
Alexei Podtelezhnikov 612925ff22 s/0/NULL/ where appropriate. 2021-09-01 21:37:21 -04:00
Alexei Podtelezhnikov efa1a35907 * builds/windows/ftsystem.c (FT_Stream_Open): Fix double-close. 2021-08-30 09:38:25 -04:00
Alexei Podtelezhnikov b6c11d494e [smooth] Reduce shift in multiply-shift optimization.
* src/smooth/ftgrays.c (FT_UDIVPREP, FT_UDIV): Reduce shift.

Smaller shifts that keep the division operands of FT_UDIVPREP within
32 bits result in slightly faster divisions, which is noticeable in
the overall performance.  The loss of precision is tolerable until the
divisors (the components dx and dy) approach 32 - PIXEL_BITS. With
PIXEL_BITS = 8, this corresponds to 65,000 pixels or the bitmap size
that we refuse to render anyway.

Using `ftbench -p -s60 -t5 -bc timesi.ttf`,

Before: 8.52 us/op
After:  8.32 us/op
2021-08-30 07:09:53 -04:00
Werner Lemberg d1c2000504 [truetype] Fix compilation if !TT_CONFIG_OPTION_BYTECODE_INTERPRETER.
* src/truetype/ttgxvar.c (tt_cvt_ready_iterator): Compile function
conditionally.
(tt_face_vary_cvt) [!TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Add code.

Fixes #1091.
2021-08-28 07:36:08 +02:00
Alexei Podtelezhnikov 6804ce2986 [builds/windows] Revise SSE2 settings.
* builds/windows/vc2010/freetype.vcxproj [x64]: Remove explicit SSE2.
* builds/windows/visualc/freetype.vcproj [Win32]: Add explicit SSE2.
2021-08-27 09:46:40 -04:00
Ben Wagner a842a0984b [smooth] Detect SSE2 with MSVC for x86
MSVC does not set `__SSE2__`. Instead one must check whether `_M_IX86_FP` is
defined and greater than or equal to 2.

* src/smooth/ftgrays.c (FT_SSE2): New macro.
Use it where appropriate.
2021-08-27 09:20:26 +02:00
Alexei Podtelezhnikov 3785393d1a Expand comment (cont'd). 2021-08-26 15:31:11 +00:00
Alexei Podtelezhnikov 686e2a5eb3 Expand comment. 2021-08-25 23:18:43 +00:00
Alexei Podtelezhnikov f7f9cb0dde * src/smooth/ftgrays.c (gray_render_conic): Refactor redundancy. 2021-08-24 15:29:06 -04:00
suzuki toshiya 5031835790 [truetype] Fix for the family name shorter than 8 characters.
* src/truetype/ttobjs.c (tt_skip_pdffont_random_tag):
If the family name to be checked is shorter than 8 characters,
do not check its syntax.
2021-08-25 00:31:26 +09:00
suzuki toshiya c4fc0e690c [truetype] Simplify `trick_names'.
* src/truetype/ttobjs.c (tt_check_trickyness_family): For the case
that the beginning part of a long tricky family name is already
registered as another tricky family name, no need to double-check
the longer one.  Such long tricky family names are removed from
the `trick_names'.
2021-08-24 16:58:11 +09:00
suzuki toshiya 992382ba29 [truetype] Add 2 tricky font names.
Additional fix for the issue #1087.

* src/truetype/ttobjs.c (tt_check_trickyness_family): Add 2 tricky
font names reported in #1087.
2021-08-24 16:51:54 +09:00
suzuki toshiya 2b3ccd6e26 [truetype] New function to skip the randomization tag.
* src/truetype/ttobjs.c (tt_skip_pdffont_random_tag):
New function to skip the randomization tag in the names of the
fonts embedded in a PDF.  It is used by tt_check_trickyness_family(),
to keep from mistaking "DLC" in the randomization tag as a
tricky font name. See discussion in:

https://lists.nongnu.org/archive/html/freetype-devel/2021-02/msg00002.html

For technical detail about the randomization tag, please find
PDF Reference 5.5.3 "Font Subsets".  Thanks to Justyna Wawrzynska
for pointing out the issue caused by the randomization tag.
2021-08-24 16:49:34 +09:00
suzuki toshiya 1c23982dd2 [truetype] Add checksums for 2 tricky fonts.
Thanks to Ting717 for providing sample PDF. Fixes #1087.

* src/truetype/ttobjs.c (tt_check_trickyness_sfnt_ids): Add
checksums for 2 tricky fonts `DFHei-Bd-WIN-HK-BF' and
`DFMing-Md-WIN-HK-BF'.
2021-08-24 16:46:06 +09:00
Alexei Podtelezhnikov 78f2bd0bd3 Whitespace formatting. 2021-08-22 22:32:07 -04:00
Alexei Podtelezhnikov d92aa23fd7 Decorate const arguments.
* src/base/ftglyph.c (FT_Glyph_Transform, FT_Glyph_To_Bitmap): Do it.
* include/freetype/ftglyph.h (FT_Glyph_Transform, FT_Glyph_To_Bitmap):
Do it.
2021-08-22 13:12:45 -04:00
Alexei Podtelezhnikov d62d583d92 [smooth] Clean up the null cell usage.
Put the null cell at the end of the pool and store it explicitly so that
we can use it as both the limit and the dumpster.

* src/smooth/ftgrays.c (gray_TWorker): Store the last `cell_null` and
remove unnecesary fields.
(NULL_CELL_PTR, CELL_IS_NULL): Remove in favor of explicit `cell_null`.
(gray_dump_cells, gray_set_cell, gray_sweep{,_direct}): Update callers.
(gray_convert_glyph_inner): Trace remaining cells (oh well).
(gray_convert_glyph): Set up `cell_null` and slightly improve the pool
management.
2021-08-20 23:40:49 -04:00
Alexei Podtelezhnikov 6e9d8d314f [base] Restore quiet no-op rendering of bitmap glyphs.
Fixes #1076.

* src/base/ftobjs.c (FT_Render_Glyph_Internal): Discard an error when
rendering a bitmap glyph.
2021-08-20 16:01:32 -04:00
Alexei Podtelezhnikov de3b5c201c [smooth] Fortify 64-bit algorithm.
* src/smooth/ftgrays.c (FT_UDIVPREP, FT_UDIV): s/long/FT_Int64/ and
s/unsigned long/FT_UInt64/.
(gray_render_line): Adjust a critical variable type.
2021-08-20 13:51:40 -04:00
Carlo Bramini f0f00f7c16 * builds/windows/ftsystem.c (FT_Stream_Open): Support legacy Windows. 2021-08-19 22:14:42 -04:00
Alexei Podtelezhnikov ffdac8d67e Determine `long long` availability based on its size.
MSVC, for example, used `long long` even without full C99 support.

* include/freetype/config/ftstdlib.h: Check if `long long` limits are
defined in <limits.h>.
* include/freetype/config/integer-types.h: Check `long long` size and
use it to typedef FT_Int64.
2021-08-19 20:41:55 -04:00
Dominik Röttsches 633fe08764 [sfnt] Fix format expectation for `COLR` v1 ClipList
* src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Change ClipList
format expectation to 1 instead of 0 to make it compliant with the
latest spec.
2021-08-19 21:35:08 +00:00
Alexei Podtelezhnikov 02ba0fc81e Readily use `long long` as a 64-bit type in C99 mode.
* include/freetype/config/integer-types.h (FT_INT64):
FT_CONFIG_OPTION_FORCE_INT64 is no longer required to use `long long`.
2021-08-18 23:27:48 -04:00
Alexei Podtelezhnikov 857038399a Use FT_INT64 instead of FT_LONG64.
* include/freetype/config/integer-types.h: Remove synonymous FT_LONG64.
* include/freetype/internal/ftcalc.h: s/FT_LONG64/FT_INT64/.
* src/base/ftcalc.c: Ditto.
* src/base/fttrigon.c: Ditto.
* src/smooth/ftgrays.c: Ditto.
2021-08-18 23:05:51 -04:00
Alexei Podtelezhnikov e2cceed857 [builds/windows] Do not set CharacterSet for VC++.
* builds/windows/vc2010/freetype.vcxproj: s/Unicode/NotSet/.
* builds/windows/visualc/freetype.vcproj: s/"1"/"0"/.
2021-08-18 11:36:33 -04:00
Werner Lemberg f44c2d5860 * src/sdf/ftsdf.c (get_control_box): Fix compiler warning. 2021-08-18 08:52:21 +02:00
Werner Lemberg f11f3ed15b [base] Fix ppem size overflow.
Fixes #1086.

* src/base/ftobjs.c (FT_Request_Metrics): Add return value.
Check whether ppem values fit into unsigned short values.
(FT_Request_Size): Updated.

* include/freetype/internal/ftobjs.h: Updated.

* src/cff/cffobjs.c (cff_size_request), src/cid/cidobjs.c
(cid_size_request), src/truetype/ttdriver.c (tt_size_request),
src/type1/t1objs.c (T1_Size_Request): Updated.
2021-08-18 07:27:02 +02:00
Alexei Podtelezhnikov 536a10aca8 * builds/windows/ftsystem.c (FT_Stream_Open): Cast to remove warning. 2021-08-17 22:24:46 -04:00
Alexei Podtelezhnikov 5116f12963 * builds/windows/ftsystem.c (FT_Stream_Open): Support UNICODE compilation. 2021-08-17 22:08:45 -04:00
Werner Lemberg fed5521016 * src/sfnt/ttcolr.c (tt_face_get_color_glyph_clipbox): Minor fix. 2021-08-09 19:27:34 +02:00
Dominik Röttsches e40ae7569a [sfnt] Add missing blend mode 'plus' to 'COLR' v1.
* include/freetype/ftcolor.h (FT_Composite_Mode): Add missing blend mode
'plus' after it was added to the spec.
2021-08-09 19:25:26 +02:00
Werner Lemberg 2c853b38a7 include/freetype/freetype.h (FT_Encoding): Improve documentation.
Based on a suggestion by Antony Lee <anntzer.lee@gmail.com>.
2021-08-08 00:22:34 +02:00
Werner Lemberg 18fc64e6a3 [smooth] Avoid integer overflow.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36243

* src/smooth/ftgrays.c(ADD_LONG, SUB_LONG, MUL_LONG, NEG_LONG)
[STANDALONE_]: Removed, unused.
(ADD_INT) [STANDALONE_]: New macro.
(FT_INTEGRATE): Use ADD_INT.
2021-08-07 17:16:52 +02:00
Dominik Röttsches 47cf8ebf4a [sfnt] Add API for retrieving a 'COLR' v1 'ClipBox' table.
The optional 'COLR' v1 glyph-specific clip box helps upstream graphics
libraries allocate a sufficiently large bitmap for a glyph without having to
traverse the glyph graph for that.  See

  https://github.com/googlefonts/colr-gradients-spec/issues/251

for background on the introduction of this specification change.

* include/freetype/ftcolor.h (FT_ClipBox): New structure.
(FT_Get_Color_Glyph_ClipBox): New function declaration.

* include/freetype/internal/sfnt.h (TT_Get_Color_Glyph_ClipBox_Func):
New function type.
(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Use it.

* src/base/ftobjs.c (FT_Get_Color_Glyph_ClipBox): New function to link API
with SFNT implementation.

* src/sfnt/sfdriver.c (sfnt_interface): Updated.
* src/sfnt/ttcolr.c (Colr): New field `clip_list`.
(tt_face_load_colr): Parse global clip list offset.
(tt_face_get_color_glyph_clipbox): New function to find the clip box for a
glyph id from the clip list array.
* src/sfnt/ttcolr.h: Updated.
2021-08-07 14:44:05 +02:00
Werner Lemberg 6be8bfe499 [smooth] Fix left shifts of negative numbers.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36241

* src/smooth/ftgrays.c (LEFT_SHIFT): New macro.
(gray_render_conic) [BEZIER_USE_DDA]: Use it.
2021-08-06 08:31:22 +02:00
Werner Lemberg 09195a82a4 * meson.build: Fix zlib support.
This commit synchronizes zlib support with both autotools and cmake: If no
external zlib is found (or intentionally disabled on the command line), use
the internal zlib by undefining `FT_CONFIG_OPTION_SYSTEM_ZLIB` without
modifying `FT_CONFIG_OPTION_USE_ZLIB`.

Also improve summary output.

Problem reported by Moazin.
2021-08-02 12:55:28 +02:00
Anuj Verma be6ab31900 [sdf] Fix out-of-range-access.
* src/sdf/ftbsdf.c (first_pass, second_pass): Fix range during forward pass.
Otherwise the index goes out of range for the last column.

Fixes issue #1077.
2021-08-02 06:49:50 +02:00
Anuj Verma ebcc96e559 Fix invalid memory access in `bsdf` rasterizer.
Do not generate SDF from bitmap if the `FT_GLYPH_OWN_BITMAP` flag is not
set.  In some cases the bitmap buffer is freed but still points to a valid
address; to handle those cases check the flag before accessing the memory.

* src/sdf/ftsdfrend.c (ft_bsdf_render): Handle the above case.
Also, return an error message if the bitmap's rows/pitch is invalid,
otherwise `slot->buffer` might be assigned to some invalid memory location.
(ft_sdf_render): Same as above.
Plus, move the outline back to original state after rasterization and not if
any error occurs.

Signed-off-by: Anuj Verma <anujv@iitbhilai.ac.in>
2021-08-02 05:51:15 +02:00
Heiko Becker 47b1a541cb * meson.build: Honor `--includedir` instead of hard-coding 'include'.
Signed-off-by: Heiko Becker <heirecka@exherbo.org>
2021-07-29 08:33:56 +02:00
Werner Lemberg d2367abac0 src/sfnt/ttcolr.c: Minor formatting. 2021-07-29 08:16:25 +02:00
Dominik Röttsches 30a82e1e5d [sfnt] 'COLR' v1 PaintSweepGradient spec update
* src/sfnt/ttcolr.c (read_paint): PaintSweepGradient follows other
spec changes and now has the angles specified as F2DOT14, reflect
that in the implementation.
* include/freetype/ftcolor.h (FT_PaintSweepGradient): Update
documentation.
2021-07-29 06:12:51 +00:00
Dominik Röttsches 5c0ac7a435 [sfnt] Retrieve affine matrix from offset in 'COLR' v1 parsing.
* src/sfnt/ttcolr.c (read_paint): Implement spec change where
affine transform matrix is now referenced by offset instead of
being placed inline in the PaintTransform table.
2021-07-29 06:05:18 +00:00