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08f66322
|
2021-06-08T18:23:16
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|
More various documentation improvements and fixes.
|
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d586927d
|
2021-06-08T17:44:34
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|
Various documentation improvements and fixes.
|
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|
640f654b
|
2021-06-08T16:45:04
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|
Fix 'devel' build for COLR 'v1'.
* devel/ftoption.h: Synchronize with
`include/freetype/config/ftoption.h`.
|
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b24cfc8d
|
2021-06-08T15:26:41
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|
[sfnt] Sanitize cmap4 table better.
Fixes #1062.
* src/sfnt/ttcmap.c (tt_cmap4_validate): Handle a too-small value of
`length` gracefully.
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ee6d03d3
|
2021-06-08T14:29:11
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|
[sfnt] Pointer validity check when reading COLR 'v1' layers
* src/sfnt/ttcolr.c (tt_face_get_paint_layers): In addition to the
existing sanity checks, ensure that the pointer to the layer to be
read is within the 'COLR' v1 table.
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41fa19fc
|
2021-06-08T10:32:20
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|
* src/sdf/ftsdfcommon.c: Fix inclusion of header files.
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35b21c71
|
2021-06-08T09:06:39
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|
[sdf] Make `make multi` work.
* src/sdf/ftsdf.c: Include `ftbitmap.h`.
* src/sdf/ftsdfcommon.h: Move function bodies to `ftsdfcommon.c`.
Include `ftobjs.h` to get definitions of `FT_LOCAL` and friends.
* src/sdf/ftsdfcommon.c: New file.
* src/sdf/rules.mk, src/sdf/sdf.c: Updated.
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36ee7171
|
2021-06-08T09:00:39
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|
[sdf] Formatting and improved comments.
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|
2b1d5562
|
2021-06-08T08:29:34
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|
[sdf] Use 8 bits for final SDF output instead of 16bits.
Since 8-bits is enough to represent SDF data we no longer require
16-bits for this purpose. Also, we now normalize the output data
to use the entire 8-bit range efficiently. For example: if we use
3.5 format with a spread of 1 we basically only use the starting
5-bits. By normalizing we can use the entire 8-bit range.
* include/freetype/freetype.h (FT_Render_Mode): Updated description
for `FT_RENDER_MODE_SDF` regarding this change.
* include/freetype/ftimage.h (FT_Pixel_Mode): Removed
`FT_PIXEL_MODE_GRAY16` since no longer required.
* include/freetype/fttypes.h (FT_F6Dot10): Removed since no longer
required.
* src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Allocate 8-bit
bitmap instead of 16-bit buffer.
* src/sdf/ftsdfcommon.h (map_fixed_to_sdf): Added function to convert
16.16 distance value to our desired format.
* src/sdf/ftsdf.c (sdf_generate_with_overlaps,
sdf_generate_bounding_box): Use the new `map_fixed_to_sdf` function
and also use 8-bit output buffer.
* src/sdf/ftbsdf.c (finalize_sdf): Output to a 8-bit buffer instead
of 16-bit buffer.
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2a6665a4
|
2021-06-01T15:25:31
|
|
[sfnt] Fix fallout from 2021-05-29 change.
* src/sfnt/ttcolr.c (find_base_glyph_record,
find_base_glyph_v1_record): Adjust binary search.
Needs to be updated with change to unsigned.
|
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7ca7da9d
|
2021-06-02T06:59:01
|
|
* src/autofit/aflatin.c (af_latin_metrics_scale_dim): Fix tracing.
Problem reported by Alexei.
|
|
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0abbc9f5
|
2021-06-02T06:36:11
|
|
[psaux] Fix MSVC compiler warnings.
* src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs):
Add cast.
|
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6e253b26
|
2021-05-29T11:05:41
|
|
Typos in previous commit.
|
|
|
a50c39aa
|
2021-05-29T09:50:29
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|
Fix compilation errors and (some) warnings for clang++.
* src/autofit/afmodule.c (AF_GlyphHintsRec): Make it static.
* src/cache/ftcache.c (FTC_Cache_NewNode), src/cache/ftcsbits.c
(ftc_snode_compare): Remove semicolon.
* src/cff/cffparse.c (cff_parser_run): Add `break` statement.
* src/cid/cidload.c (cid_hex_to_binary): Add cast.
* src/sdf/ftbsdf.c (CHECK_NEIGHBOR): Use `do {} while(0)` loop.
(bsdf_init_distance_map, finalize_sdf, bsdf_raster_render): Add
casts.
* src/sdf/ftsdf.c (sdf_generate_bounding_box,
sdf_generate_with_overlaps): Ditto.
* src/sdf/ftsdfcommon.h (square_root): Ditto.
* src/sdf/ftsdfrend.c (sdf_property_get, ft_sdf_render,
ft_bsdf_render): Ditto.
* src/sfnt/ttcolr.c (find_base_glyph_record,
find_base_glyph_v1_record): Fix variable signedness.
(read_color_line): Add cast.
(read_paint): Add casts.
Fix signedness issue.
(tt_face_get_colorline_stops) Fix signedness issues.
* src/sfnt/ttpost.c (load_format_20): Add casts.
* src/truetype/ttsubpix.c (TWEAK_RULES, TWEAK_RULES_EXCEPTIONS):
Remove final semicolons.
|
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2bfdc161
|
2021-05-29T00:27:40
|
|
[build] Allow overriding of `ANSIFLAGS` for GNU make build.
* builds/*: Implement it.
|
|
28eee363
|
2021-05-27T11:38:56
|
|
[type42] Fix auto-hinting.
The autohinter could not access the base (unscaled) outline in the
child TrueType glyph slot. We now share the internal parts between
the parent and child glyph slots. Fixes #1057.
* src/type42/t42objs.c (T42_GlyphSlot_Init): Remove the internal parts
of `T42_GlyphSlot' and replace it with the child TrueType structure.
(T42_GlyphSlot_Done): Updated accordingly.
|
|
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0d1c306e
|
2021-05-25T11:27:56
|
|
[psaux] Guard and trace AFM kern data allocation.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31543
* include/freetype/internal/fttrace.h: Add 'afmparse' trace
component.
* src/psaux/afmparse.c (FT_COMPONENT): Define.
(afm_parse_track_kern, afm_parse_kern_pairs): Protect against
allocations bombs.
Add tracing.
(afm_parse_kern_data): Don't allow multiple kern data sections.
|
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5f485339
|
2021-05-24T08:24:36
|
|
.gitignore: Add `subprojects` directory, fix some patterns.
|
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|
16947c0e
|
2021-05-23T05:36:16
|
|
* meson.build (ft2_public_headers): Add missing `ftcid.h'.
Fixes #1058.
|
|
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2468e59a
|
2021-05-20T22:20:36
|
|
[type42] Avoid some memory zeroing.
* src/type42/t42objs.c (T42_Open_Face): Tweak allocation macro.
* src/type42/t42parse.c (t42_parse_sfnts): Ditto.
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ebf9e5ac
|
2021-05-15T22:36:00
|
|
[CMake] Update dependency finders.
1. Fixes CMake using any found HarfBuzz version lower than the minimum
required. This is based on HALX99's merge request at
https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/31
2. Update FindHarfBuzz.cmake from
https://github.com/WebKit/WebKit/blob/1ce32454/Source/cmake/FindHarfBuzz.cmake
and guard post-CMake-3.1 features to keep the minimum version unchanged
3. Update FindBrotliDec.cmake to stop the warnings, based on what
https://github.com/google/woff2/blob/a0d0ed7d/cmake/FindBrotliDec.cmake
is doing
* CMakeLists.txt, builds/cmake/FindHarfBuzz.cmake: Implement 1 and 2.
* builds/cmake/FindBrotliDec.cmake: Implement 3.
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06e21ffe
|
2021-05-18T14:49:50
|
|
[gzip] Use exact type for `ft_gzip_alloc` and `ft_gzip_free`.
While a function pointer may be cast to another function pointer
type, it is required to cast the function pointer back to the
original function pointer type before calling it. If a parameter is
a pointer the exact pointer type is required. Using a pointer to a
different underlying type is technically undefined behavior. The
wrapper functions `ft_gzip_alloc` and `ft_gzip_free` took
`FT_Memory` (a `FT_MemoryRec_*`) instead of `voidpf` (`void*`), so
when gzip calls these callbacks through `alloc_func` or `free_func`
it invokes undefined behavior. On most platforms this works out as
expected, but newer undefined behavior detectors and targets like
wasm can detect this and will produce an error.
* src/gzip/ftgzip.c (ft_gzip_alloc, ft_gzip_free): Update signatures
to exactly match `alloc_func` and `free_func`, respectively.
Internally, cast the `void*` opaque pointer to `FT_Memory`.
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|
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81852fbc
|
2021-05-18T22:18:17
|
|
Prioritize the anti-aliasing renderer module.
* modules.cfg: Reorder the renderers.
* include/freetype/config/ftmodule.h: Ditto.
|
|
|
1bc801b0
|
2021-05-16T23:12:01
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|
[sfnt] Additional guards on the POST table.
Fixes timeout (#1055) analyzed by Ben Wagner, reported as
https://crbug.com/1194092
* src/sfnt/ttload.c (tt_face_load_post): Check POST format.
* src/sfnt/sfobjs.c (sfnt_load_face): Synthesize the missing unicode
charmap only if the glyph names exist.
* src/psnames/psmodule.c (ps_unicode_value): Short cut ".notdef" and
".null".
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|
de151657
|
2021-05-13T23:08:31
|
|
[psaux] Use doubling allocation strategy for CF2_ArrStack.
Fixes timeout reported as
https://crbug.com/1206181
* src/psaux/psarrst.c (cf2_arrstack_{push,init}): Implement it.
* src/psaux/psarrst.h (CF2_ArrStackiRec): Drop `chunk'.
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2d3f5dd2
|
2021-05-12T17:24:35
|
|
* src/smooth/ftgrays.c (FT_MAX_GRAY_SPANS): Increase from 10 to 16.
Ten was barely enough for two slanted stems. Sixteen can actually fit
a bit more complicated scanlines.
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c653b8d2
|
2021-05-12T16:17:21
|
|
* src/smooth/ftgrays.c (FT_GRAY_SET): Adjust for better code.
|
|
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8f43d324
|
2021-05-12T00:04:59
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|
[smooth] Faster bitmap sweeping.
Selecting the fill rule or checking the direct mode each time we call
`gray_hline' is sub-optimal. This effectively splits the direct mode
into a separate code path while inlining `gray_hline' and saving 5-7%
of rendering time.
* src/smooth/ftgrays.c (gray_hline): Eliminated in favor of...
(FT_FILL_RULE, FT_GRAY_SET): ... these new macros...
(gray_sweep): ... inlined here.
(gray_sweep_direct): New function that handles the direct span buffer.
(gray_TWorker): Remove the span buffer.
(gray_raster_render, gray_convert_glyph): Updated.
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b0702645
|
2021-05-10T22:06:01
|
|
* src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations.
It is too bad the even-odd rule is not used much.
|
|
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967a34ee
|
2021-05-07T19:17:48
|
|
[type1] Avoid MM memory zeroing.
* src/type1/t1load.c (t1_allocate_blend, parse_blend_design_map):
Tweak allocation macros.
* src/type1/t1objs.c (T1_Face_Done): Minor.
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|
|
2f62d8e0
|
2021-05-07T09:33:41
|
|
* src/bdf/bdflib.c (_bdf_list_ensure): Tweak allocation macro.
|
|
|
79ed536d
|
2021-05-06T23:46:46
|
|
* src/psaux/psobjs.c (ps_parser_load_field): Tweak allocation macro.
|
|
|
44c59414
|
2021-05-06T22:54:03
|
|
* src/sfnt/sfobjs.c (sfnt_load_face): Tweak allocation macro.
|
|
|
998c7c0f
|
2021-05-06T22:51:37
|
|
* src/cid/cidload.c (cid_read_subrs): Tweak allocation macro.
|
|
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2d957848
|
2021-05-06T22:49:13
|
|
* src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Tweak allocation.
|
|
|
8150ed0d
|
2021-05-05T23:30:46
|
|
[cff,psaux] Avoid memory zeroing (contd.).
* src/cff/cffload.c (cff_blend_doBlend, cff_blend_build_vector): Tweak
allocation macros.
* src/psaux/psarrst.c (cf2_arrstack_setNumElements): Ditto.
* src/psaux/psstack.c (cf2_stack_init): Ditto.
|
|
|
82fd32d6
|
2021-05-03T13:49:14
|
|
* src/cid/cidload.c (cid_hex_to_binary): Improve return value.
Add argument to return the actual number of bytes that were decoded.
The actual number of bytes decoded can be quite variable depending
on the number of ignored 'whitespace' bytes or early termination
with `>`.
(cid_face_open): Updated to use this calculated value. This avoids
trusting `parser->binary_length` is always be correct and reading
uninitialized bits if fewer are actually decoded.
First reported as
https://crbug.com/1203240
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66630d88
|
2021-05-03T22:40:16
|
|
[sfnt] Streamline POST format 2.0 handing.
To reduce memory allocations, we read an entire Pascal-string buffer
and convert it to a C-string buffer. We also reject tables with
Postscript glyph names exceeding 63 bytes.
* src/sfnt/ttpost.c (load_format20): Implement it.
(load_post_names): Check the minimal POST table size.
(load_format25, tt_face_free_ps_names): Updated accordingly.
|
|
|
ec95f9c9
|
2021-05-02T18:30:22
|
|
[bdf,pcf] Avoid memory zeroing (contd.).
* src/bdf/bdflib.c (bdf_create_property, _bdf_add_comment,
_bdf_add_property, bdf_load_font): Tweak allocation macros.
* src/pcf/pcfread.c (pcf_get_properties, pcf_get_metrics): Ditto.
|
|
|
d911cb53
|
2021-05-01T23:49:11
|
|
* src/cid/cidload.c (cid_read_subrs): Tweak allocaton macro.
|
|
|
dc42f826
|
2021-05-01T12:46:44
|
|
[sfnt] Avoid some memory zeroing.
* src/sfnt/sfobjs.c (sfnt_open_font, sfnt_init_face,
tt_name_ascii_from_{utf16,other}): Tweak allocaton macros.
* src/sfnt/ttload.c (tt_face_load_name): Ditto.
|
|
|
b8968d66
|
2021-05-01T12:24:44
|
|
* src/sfnt/ttpost.c (load_format_{20,25}): Tweak allocaton macros.
|
|
|
2583b608
|
2021-05-01T09:22:26
|
|
* src/sfnt/pngshim.c (Load_SBit_Png): Tweak allocaton macro.
|
|
|
56ae9430
|
2021-05-01T09:14:04
|
|
[truetype] Avoid some memory zeroing.
* src/truetype/ttinterp.c (Init_Context): Tweak allocation macro.
* src/truetype/ttpload.c (tt_face_load_cvt): Ditto.
|
|
|
c177cc35
|
2021-05-01T09:09:52
|
|
[woff2] Avoid some memory zeroing.
* src/sfnt/sfwoff2.c (store_loca, woff2_open_font): Tweak macros.
|
|
|
4e1c6a12
|
2021-04-30T09:35:21
|
|
* src/gzip/ftgzip.c (ft_gzip_alloc): Zero out memory again.
|
|
|
f631542d
|
2021-04-27T11:39:58
|
|
[lzw] Preserve decompression stack when relocating to heap.
* src/lzw/ftzopen.c (ft_lzwstate_stack_grow): Copy stack when
relocating to heap.
|
|
|
c213c8a9
|
2021-04-27T08:54:19
|
|
* src/cid/cidgload.c (cid_load_glyph): Restore the glyph_length check.
|
|
|
2ec6feaf
|
2021-04-27T13:28:35
|
|
* src/psmodule.c (ps_unicodes_init): Ignore empty glyph names.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33637
|
|
|
caff87b1
|
2021-04-26T22:45:40
|
|
* src/sfnt/sfobjs.c (sfnt_init_face): Revert macro change.
|
|
|
8750e843
|
2021-04-26T17:21:51
|
|
[cff] Avoid some memory zeroing.
* src/cff/cffparse.c (cff_parser_init): Tweak memory macro.
* src/cff/cffload.c (cff_index_load_offsets, cff_index_get_pointers,
cff_charset_load, cff_vstore_load): Ditto.
|
|
|
618d0834
|
2021-04-26T17:14:28
|
|
[pfr] Avoid some memory zeroing.
* src/pfr/pfrobjs.c (pfr_face_init) : Tweak memory macro.
* src/pfr/pfrload.c (pfr_extra_item_load_stem_snaps,
pfr_phy_font_load): Ditto.
|
|
|
b0a28197
|
2021-04-26T17:10:28
|
|
* src/winfonts/winfnt.c (FNT_Face_Init): Tweak memory macro.
|
|
|
deee5b70
|
2021-04-26T17:07:44
|
|
[psaux,psnames] Avoid some memory zeroing.
* src/psaux/psstack.c (cf2_stack_init): Tweak memory macro.
* src/psnames/psmodule.c (ps_unicodes_init): Ditto.
|
|
|
270ff52f
|
2021-04-25T23:40:59
|
|
[base] Avoid some memory zeroing.
* src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Use FT_QNEW_ARRAY.
* src/base/ftsnames.c (FT_Get_Sfnt_{Name,LangTag}): Ditto.
|
|
|
c2d28314
|
2021-04-25T23:33:15
|
|
[bdf,pcf] Avoid some memory zeroing.
* src/pcf/pcfread.c (pcf_read_TOC, pcf_get_properties, pcf_load_font):
Tweak memory macros.
* src/bdf/bdfdrivr.c (BDF_Face_Init): Ditto.
* src/bdf/bdflib.c (_bdf_readstreami, bdf_create_property,
_bdf_parse_glyphs, _bdf_parse_start): Ditto.
(_bdf_add_property): Do not handle zero size.
|
|
f998eaf9
|
2021-04-24T17:21:17
|
|
* builds/meson/process_ftoption_h.py: Add LF at EOF.
This fixes
.../ftoption.h:1030:10: error:
no newline at end of file [-Werror,-Wnewline-eof]
for the generated `ftoption.h` file.
|
|
|
c78f78fa
|
2021-04-24T22:38:48
|
|
* src/cff/cffload.c (cff_index_get_pointers): s/FT_QALLOC/FT_ALLOC/.
|
|
|
0bd5d95d
|
2021-04-23T22:04:05
|
|
* src/base/ftobjs.c (Mac_Read_POST_Resource): s/FT_ALLOC/FT_QALLOC/.
* builds/mac/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.
|
|
|
e6e5b67d
|
2021-04-23T21:33:03
|
|
* src/sdf/ftsdf.c (sdf_{edge,contour,shape}_new): Use FT_QALLOC.
|
|
|
6ada59ab
|
2021-04-23T19:22:51
|
|
[sfnt] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
* src/sfnt/sfdriver.c (get_win_string, get_apple_string,
sfnt_get_var_ps_name): Do not zero out the buffer.
* src/sfnt/sfobjs.c (sfnt_init_face): Ditto.
* src/sfnt/sfwoff.c (woff_open_font): Ditto.
* src/sfnt/sfwoff2.c (woff2_open_font): Ditto.
|
|
|
ec9e5114
|
2021-04-23T14:03:03
|
|
[cff,type1,type42] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
* src/cff/cffload.c (cff_index_get_pointers, cff_index_get_name):
Do not zero out the buffer.
* src/cff/cffdrivr.c (cff_ps_get_font_info): Ditto.
* src/type1/t1load.c (parse_subrs, parse_charstrings,
parse_blend_axis_types): Ditto.
* src/type1/t1parse.c (T1_New_Parser, T1_Get_Private_Dict): Ditto.
* src/type42/t42parse.c (t42_parser_init): Ditto.
|
|
|
baa0f71d
|
2021-04-23T13:48:34
|
|
[cid] s/FT_ALLOC/FT_QALLOC/ and clean up.
* src/cid/cidgload.c (cid_load_glyph): Do not zero out the buffer.
* src/cid/cidload.c (cid_face_open, cid_read_subrs): Ditto.
|
|
|
b3438ccb
|
2021-04-23T08:35:02
|
|
[pfr] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
* src/pfr/pfrload.c (pfr_extra_item_load_font_id, pfr_aux_name_load):
Do not zero out the buffer.
|
|
|
1e525c62
|
2021-04-23T08:24:22
|
|
[bzip2,gzip] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
* src/bzip2/ftbzip2.c (ft_bzip2_alloc): Do not zero out the buffer.
* src/gzip/ftgzip.c (ft_gzip_alloc, FT_Stream_OpenGzip): Ditto.
|
|
|
a0fb6dbc
|
2021-04-23T00:05:18
|
|
[pcf,bdf,winfonts] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
* src/pcf/pcfread.c (pcf_interpret_style): Do not zero out the buffer.
* src/bdf/bdfdrivr.c (bdf_interpret_style): Ditto.
* src/winfonts/winfnt.c (FNT_Face_Init, FNT_Load_Glyph): Ditto.
|
|
|
23f85c8a
|
2021-04-22T23:34:08
|
|
[cache] Optimize SBit copying.
* src/cache/ftcsbits.c (ftc_snode_load): Do not initialize the buffer.
(ftc_sbit_copy_bitmap): Accept zero size, s/FT_ALLOC/FT_QALLOC/.
|
|
|
93715ab2
|
2021-04-22T23:07:01
|
|
[gxvalid,otvalid] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
* src/gxvalid/gxvmod.c (gxv_load_table): Do not zero out the buffer.
* src/otvalid/otvmod.c (otv_load_table): Ditto.
|
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90b97a83
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2021-04-22T23:00:40
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[psaux] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
* src/psaux/psobjs.c (ps_table_done, ps_parser_load_field): Do not
zero out the buffer.
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44b1ebe5
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2021-04-22T22:34:05
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[base] s/FT_ALLOC/FT_QALLOC/ for initialized buffers.
* src/base/ftobjs.c (open_face_PS_from_sfnt_stream,
Mac_Read_sfnt_Resource): Do not zero out the buffer.
* src/base/ftmac.c (FT_New_Face_From_SFNT, read_lwfn): Ditto.
* src/base/ftrfork.c (raccess_make_file_name,
raccess_guess_darwin_hfsplus, raccess_guess_darwin_newvfs): Ditto.
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8a459e51
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2021-04-20T22:53:13
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[cache] Restore SBit copying for unowned (BDF) bitmaps.
* src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Restore.
(ftc_snode_load): Check ownership and copy unowned bitmaps.
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361465de
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2021-04-20T22:31:28
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Bitmap tracing.
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e662a950
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2021-04-19T12:49:16
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[sfnt] Return in 'COLR' v1 when layer pointer outside table
* src/sfnt/ttcolr.c (tt_face_get_paint_layers): Add missing return
when paint pointer outside table.
(read_paint): Add missing return when paint pointer outside table.
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7c685cb3
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2021-04-18T22:31:13
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[cache] Switch to lazy SBit setting.
* src/cache/ftcsbits.c (ftc_sbit_copy_bitmap): Removed.
(ftc_snode_load): Take the bitmap ownership instead of copying.
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02dec617
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2021-04-18T10:24:31
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Typo.
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2e68785e
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2021-04-17T09:00:40
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* src/cache/ftcsbits.c (ftc_snode_load): Properly handle short pitch.
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6f6ad876
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2021-04-16T20:50:27
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* builds/unix/freetype2.m4: Fix help string formatting.
The indented `dnl` macros inserted unwanted horizontal space.
Problem reported by Ozkan Sezer <sezeroz@gmail.com>.
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7f8a1edd
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2021-04-16T12:35:29
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[sfnt] Safeguard 'COLR' v1 layer extraction
* src/sfnt/ttcolr.c (tt_face_get_paint_layers): Do not output
layer pointer to iterator if it is outside the 'COLR' table.
(read_paint): Do not attempt to read layers that are outside the
table.
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b9b74f9f
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2021-04-10T23:32:20
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A few words on prerequisites.
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f9350be1
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2021-04-01T09:44:00
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[base] Complete `ft_glyphslot_clear`.
* src/base/ftobjs.c (ft_glyphslot_clear): This function is intended
to reset all the values of a glyph slot. However, it was not
resetting the values of the advances and `glyph_index`. Reset the
advances and `glyph_index` to zero.
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52f2a008
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2021-04-01T09:33:47
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Update TT_New_Context documentation
In commit 531d463aed365b
[truetype] Allocate TT_ExecContext in TT_Size instead of TT_Driver.
the `TT_ExecContext` was moved from being on the driver to being on the size
to make it easier to use FreeType in a multi-threaded environment. However,
the documentation for `TT_New_Context` was not updated and still reflects
the old behavior and parameter list.
This change updates `TT_New_Context` documentation to reflect the current
parameters and usage.
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369d8be9
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2021-03-31T22:31:44
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[truetype] Prevent glyph program state from persisting.
`FDEF` instructions are specified as allowed only in 'prep' or
'fpgm'. FreeType has attempted to prevent their use in the glyph
program, but they were still allowed in glyph programs if defined in
a function defined in 'prep' or 'fpgm' and called from the glyph
program.
Similarly, `IDEF` instructions are specified not to be able to
modify any existing instruction. FreeType has attempted to prevent
their use in the glyph program, but they can still be used like
`FDEF`.
This change stores the initial bytecode range type and disallows the
use of `FDEF` and `IDEF` while running the glyph program.
Most other state is copied from the `TT_Size` into the execution
context. However, it is possible for a glyph program to use `WS` to
write to the storage area or `WCVTP`, `WCVTF`, and `DELTAC[123]` to
write to the control value table.
Allowing any change to the global state from the glyph program is
problematic as the outlines of any given glyph may change based on
the order the glyphs are loaded or even how many times they are
loaded. There exist fonts that write to the storage area or the
control value table in the glyph program, so their use should not be
an error.
Possible solutions to using these in the glyph program are
* ignore the writes;
* value-level copy on write, discard modified values when finished;
* array-level copy on write, discard the copy when finished;
* array-level copy up-front.
Ignoring the writes may break otherwise good uses. A full copy
up-front was implemented, but was quite heavy as even well behaved
fonts required a full copy and the memory management that goes along
with it. Value-level copy on write could use less memory but
requires a great deal more record keeping and complexity. This
change implements array-level copy on write. If any attempt is made
to write to the control value table or the storage area when the
initial bytecode range was in a glyph program, the relevant array
will be copied to a designated storage area and the copy used for
the rest of the glyph program's execution.
* src/truetype/ttinterp.h (TT_ExecContextRec): New fields
`iniRange`, `glyfCvtSize`, `glyfCvt`, `origCvt`, `glyfStoreSize`,
`glyfStorage`, and `origStorage`.
* src/truetype/ttinterp.c (Modify_CVT_Check): New function to handle
`exc->glyfCvt`.
(Write_CVT, Write_CVT_Stretched, Move_CVT, Move_CVT_Stretched): Use
it.
(Ins_WS): Handle `exc->glyfStorage`.
(Ins_FDEF, Ins_IDEF): Updated.
(TT_RunIns): Updated.
(TT_Done_Context): Free 'glyf' CVT working and storage area.
(TT_Load_Context): Fix/add casts.
* src/truetype/ttgload.c (TT_Load_Simple_Glyph): Fix cast.
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1c086293
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2021-04-02T06:55:29
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[sfnt] Check validity of pointer location of `read_color_line`.
* src/sfnt/ttcolr.c (get_child_table_pointer): New function to fetch
child table pointer early for all paint formats that compute a child
table pointer.
(read_color_line, read_paint): Updated.
(tt_face_get_colorline_stops): Check `colr->table`.
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c1e1a07f
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2021-03-28T15:07:05
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[docs] Update docwriter stylesheet for 1.3.1.
This change is required to support docwriter 1.3.1.
See
https://gitlab.freedesktop.org/freetype/docwriter/-/merge_requests/101
for more information.
* docs/markdown/stylesheets/extra.css:
(.wy-nav-content, .md-sidebar--secondary): Remove.
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e9c50fa7
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2021-03-16T22:12:41
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* src/sfnt/pngshim.c (Load_SBit_Png): Free `rows` once later.
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b0729b8f
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2021-03-15T14:32:24
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[sfnt] Fix memory leak in png loading.
Reported as
https://bugs.chromium.org/p/chromium/issues/detail?id=1182552
Memory is allocated and the pointer assigned to `rows` inside a
'setjmp' scope. This memory must be freed outside the 'setjmp'
scope after a 'longjmp'. Since `rows` is a local and modified
inside the 'setjmp' scope it must be marked volatile or it will have
an indeterminate value after the 'longjmp'.
* src/sfnt/pngshim.c (Load_SBit_Png): Fix memory leak of `rows`.
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66005cba
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2021-03-15T14:51:30
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* CMakeLists.txt: Don't limit generation of 'pkg-config' file to UNIX.
mingw-w64 uses the 'pkg-config' files but does not set UNIX.
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1578e570
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2021-03-16T06:59:01
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README.git: Document cloning of official site and Savannah mirror.
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fb9bf2ef
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2021-03-15T22:33:17
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* src/smooth/ftgrays.c (gray_set_cell): Refactor to fix VC++ warning.
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2149b51f
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2021-03-13T19:08:09
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Handle various VC++ compiler warnings.
Fixes #1039.
* src/base/ftstroke.c (ft_stroker_inside, ft_stroker_outside):
Initialize `sigma`.
* src/sdf/ftsdf.c (sdf_generate_with_overlaps): Exit immediately if
function arguments are invalid.
* src/sdf/ftsdfrend.c (sdf_property_set) <"overlaps">: Fix cast.
* src/sfnt/sfwoff2.c (woff2_decompress)
[!FT_CONFIG_OPTION_USE_BROTLI]: Use `FT_UNUSED`.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Initialize `fvar_head`.
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80bda804
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2021-03-11T22:40:19
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[smooth] Reduce copying during integration phase.
We now record `cover' and `area' directly into the linked list. This
makes rendering faster by 10% or even more at larger sizes.
* src/smooth/ftgrays.c (FT_INTEGRATE): Write directly.
(gray_TWorker): Add direct cell reference and remove unused fields.
(gray_set_cell): Consolidate the linked list management and pointers.
(gray_convert_glyph, gray_convert_glyph_inner): Updated.
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d5b7de55
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2021-03-11T22:08:45
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* src/smooth/ftgrays.c (FT_INTEGRATE): New convenience macro.
(gray_render_line, gray_render_scanline): Use it.
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85168499
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2021-03-09T22:14:44
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* src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals.
These produce faster or more optimizable code.
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fedd945c
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2021-03-08T10:30:57
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meson.build: Minor formatting.
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7252e35e
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2021-03-07T18:13:59
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[meson] Fix 'mmap' handling on Windows.
* meson.build (ft2_sources): Always use `windows/ftsystem.c` on
Windows unless mmap has been disabled.
https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests/5#note_829289
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e2229328
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2021-01-17T15:33:59
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[ci] Add basic support for Meson builds with MSVC on Windows.
This adds meson jobs for VS2017 (x86 and x86_64).
* .gitlab-ci.yml: New file.
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bb42afbd
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2021-01-17T15:50:08
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[meson] Add subproject fallbacks for 'libpng' and 'zlib'.
* subprojects/libpng.wrap, subprojects/zlib.wrap: New files.
* meson.build: Updated.
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d69d9c23
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2021-02-13T16:32:26
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[meson] Make it work with Windows.
* meson.build: Do not process `ftconfig.h` when not using
`ftconfig.h.in`.
Fixes #1029.
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7227aabb
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2021-03-04T06:41:30
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Revert "[sfnt] Fix crash in `Load_SBit_Png` on Windows x64."
This reverts commit dbf9142f7e0432c9ed618b3276e2b61fa39e7262, as discussed
in #1037.
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dbf9142f
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2021-02-25T15:07:25
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[sfnt] Fix crash in `Load_SBit_Png` on Windows x64.
This change fixes a crash that occurs in `Load_SBit_Png` when
running on a 64-bit Windows OS. A memory access violation exception
would be raised by `setjmp` if the `jmp_buf` is not aligned to a
16-byte memory boundary. This is due to setjmp executing `movdqa`
instructions to store 128-bit XMM registers to memory, which require
correct memory alignment. This problem occurs because
`png_create_read_struct` uses `malloc` and `free` for memory
management, which only guarantees 8-byte alignment on Windows.
Instead, to fix the problem, `png_create_read_struct_2` is used on
64-bit Windows, which allows for user-defined memory allocation and
deallocation callbacks to be specified. These callbacks forward the
allocation and deallocation requests to `_aligned_alloc` and
`_aligned_free`, ensuring that the allocated `png_struct` and
internal `jmp_buf` have the requisite 16-byte alignment.
* src/sfnt/pngshim.c <_WIN64>: Include `malloc.h`.
(malloc_callback, free_callback) <_WIN64>: New functions.
(Load_SBit_Png) <_WIN64>: Use `png_create_read_struct_2` instead of
`png_create_read_struct`
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