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231 Commits

Author SHA1 Message Date
Matthias Clasen 318aa10708 [ot-font] Use the cmap cache more 
Use the cmap cache for get_nominal_glyph and
get_variation_glyph as well. The first of these
is used a lot in pango.
 2023-01-29 09:17:17 -05:00
Behdad Esfahbod 5da829eaf5 [font] Comments 2023-01-28 22:18:53 -07:00
Behdad Esfahbod 544dd9678c [font] Fix unlikely 2023-01-28 22:06:46 -07:00
Behdad Esfahbod c1d0daf5f1 [font] unlikely 2023-01-28 22:05:24 -07:00
Behdad Esfahbod 30ee7a21e1 [font] Typo 2023-01-28 21:48:52 -07:00
Behdad Esfahbod f8a744d9d5 [ot-font] Add a cmap cache 
Speeds up Roboto shaping by 7%, for 1kb per face.
 2023-01-28 13:38:07 -07:00
Behdad Esfahbod 1b53ed3c41 [cache] Remove empty fini() 2023-01-28 13:38:07 -07:00
Matthias Clasen 4adc748b13 Move Color tables to src/OT/Color/ 2023-01-01 14:57:53 -07:00
Matthias Clasen 9be01b6bff [paint] Pass hb_paint_context_t along 
Replace the font argument with a hb_paint_context_t
that carries the font, the palette index and the
foreground color.

The hb_font_paint_glyph() api now takes the palette
index and the foreground color as extra arguments.

Update all callers and regenerate test results.
 2022-12-23 13:37:59 -07:00
Matthias Clasen 14b026ff86 [draw] Add hb_font_draw_glyph 
hb_font_draw_glyph(), hb_font_draw_glyph_func_t and
hb_font_funcs_set_draw_glyph_func() are just alternative
names for hb_font_get_glyph_shape and friends, to better
align with hb_font_paint_glyph.
 2022-12-23 13:37:59 -07:00
Matthias Clasen 0f287e75ec [paint] Rename hb_font_get_glyph_paint_func_t 
The 'get' was just there due to implementation
choices. Work around that and call the vfunc
what it should be: hb_font_paint_glyph_func_t.
 2022-12-23 13:37:59 -07:00
Matthias Clasen 6079173a52 Try paint_glyph for more tables 
If the COLR table does not paint the glyph,
try SVG, CBDT and sbix too, before giving up
on color.
 2022-12-23 13:37:59 -07:00
Matthias Clasen 9461ab7088 Try paint_glyph for more tables 
If the COLR table can't paint the glyph,
try glyf, cff1 and cff2 too.
 2022-12-23 13:37:59 -07:00
Matthias Clasen 6a48ac42f4 COLR implementation 2022-12-23 13:37:59 -07:00
Matthias Clasen 7a748ad4ac COLRv1: use ClipBoxes for extents 
This is a first step; ultimatively, we
should compute the extents is ClipBoxes
are missing.
 2022-12-11 13:12:30 -07:00
Behdad Esfahbod 6dfd4a16e7 [ot-font] Remove stale TODO 2022-11-16 22:44:22 -07:00
Khaled Hosny d2966d3919 [ot-font] Try CBDT extents before outline tables 
Like we do for sbix table.

Fixes https://github.com/harfbuzz/harfbuzz/issues/3827
 2022-09-22 15:50:27 -06:00
Behdad Esfahbod c02a1a4adc [ot-font] Remove unused include 2022-09-20 17:40:13 -06:00
Behdad Esfahbod d7adc55e18 [ot-font] Allow 24bit glyphs in advance cache 2022-08-04 11:40:54 -06:00
Behdad Esfahbod ec90d1e161 [cache] Add a non-threadsafe version 
Use in hb-ft, since already mutex'ed.
 2022-08-03 13:01:04 -06:00
Behdad Esfahbod 86d1e22d4f [atomic-ptr] Rename get 2022-08-03 13:01:04 -06:00
Behdad Esfahbod d3f2287e0b [atomic-int] Rename get/set 2022-08-03 13:01:04 -06:00
Behdad Esfahbod a5d9012e94 Revert "[ot-font] Minor simplification" 
This reverts commit 28c02b3768.

Old code was used in case of memory allocation failure (as shown
by fuzzers...)
 2022-07-29 19:51:00 -06:00
Behdad Esfahbod 28c02b3768 [ot-font] Minor simplification 2022-07-29 15:55:16 -06:00
Behdad Esfahbod b0cb9a1a63 Make get_leading_bearing return bool 
Fixes https://github.com/harfbuzz/harfbuzz/issues/3496

Part of supporting >64k glyphs correctly.
 2022-07-03 15:32:32 -06:00
Behdad Esfahbod f46ddeba48 [hmtx/glyf] Rename side-bearing functions for clarity 2022-07-03 13:12:49 -06:00
Behdad Esfahbod ab5ce64313 [VVAR] Rename vorg function for clarity 2022-07-03 13:00:22 -06:00
Behdad Esfahbod b2d60cbd6e [glyf] Rename advance functions for clarity 2022-07-03 12:56:48 -06:00
Behdad Esfahbod 35c00c1216 [hmtx] Rename advance functions for clarity 2022-07-03 12:54:17 -06:00
Behdad Esfahbod b07fa2bb1a [ot-font] Respect VORG even if it has no variations 2022-07-03 12:39:55 -06:00
Behdad Esfahbod aba4a4957a [ot-font] Disable VORG variation code in HB_NO_VAR 2022-06-30 14:13:44 -06:00
Behdad Esfahbod d5921b379b [tt-font] Apply VVAR.vOrg variation to VORG origin 
Mostly fixes https://github.com/harfbuzz/harfbuzz/issues/1694
 2022-06-30 14:09:09 -06:00
Behdad Esfahbod eee29f7327 [hmtx] Specialize var_table 2022-06-30 14:09:09 -06:00
Behdad Esfahbod a719e67887 [ot-font] Use atomic ops for cache serial number 
This guarantees the cache is coherent.
 2022-05-26 05:02:50 -06:00
Behdad Esfahbod 5248b2567b [ot-font/h-advance] Adjust varStore cache condition 
This gives best performance for short strings, now that we have a h-advance cache as well.
The en-words benchmark in particular, now ot-font is faster than ft.

Second to last line is of interest:

Before:
-----------------------------------------------------------------------------------------------------
Benchmark                                                           Time             CPU   Iterations
-----------------------------------------------------------------------------------------------------
BM_Shape/en-words.txt/Roboto-Regular.ttf/hb                      29.8 ms         29.8 ms           23
BM_Shape/en-words.txt/Roboto-Regular.ttf/ft                      30.4 ms         30.4 ms           23
BM_Shape/en-words.txt/SourceSerifVariable-Roman.ttf/hb           16.3 ms         16.3 ms           43
BM_Shape/en-words.txt/SourceSerifVariable-Roman.ttf/ft           16.5 ms         16.5 ms           42
BM_Shape/en-words.txt/SourceSerifVariable-Roman.ttf/var/hb       18.0 ms         18.0 ms           39
BM_Shape/en-words.txt/SourceSerifVariable-Roman.ttf/var/ft       17.8 ms         17.8 ms           39

After:
behdad@Behdads-MacBook-Pro harfbuzz % ninja -Cbuild && build/perf/benchmark-shape --benchmark_filter=en-words
-----------------------------------------------------------------------------------------------------
Benchmark                                                           Time             CPU   Iterations
-----------------------------------------------------------------------------------------------------
BM_Shape/en-words.txt/Roboto-Regular.ttf/hb                      30.0 ms         30.0 ms           23
BM_Shape/en-words.txt/Roboto-Regular.ttf/ft                      30.3 ms         30.3 ms           23
BM_Shape/en-words.txt/SourceSerifVariable-Roman.ttf/hb           16.3 ms         16.3 ms           43
BM_Shape/en-words.txt/SourceSerifVariable-Roman.ttf/ft           16.4 ms         16.4 ms           43
BM_Shape/en-words.txt/SourceSerifVariable-Roman.ttf/var/hb       17.6 ms         17.6 ms           40
BM_Shape/en-words.txt/SourceSerifVariable-Roman.ttf/var/ft       17.8 ms         17.8 ms           39
 2022-05-26 05:02:50 -06:00
Behdad Esfahbod 12fff976b6 [ot-var] Use atomic int for cached-serial 2022-05-26 05:02:50 -06:00
Behdad Esfahbod 0919eaa6e8 [ot-font] Remove lock around cache 
Not needed.
 2022-05-26 05:02:50 -06:00
Behdad Esfahbod 3548b6025f [ot-font] Cache h-advances for variable fonts 2022-05-26 05:02:50 -06:00
Behdad Esfahbod 39a07bf3eb [ot-font] Rename cache to varStore_cache 2022-05-26 05:02:50 -06:00
Behdad Esfahbod 970e03ecae [ot-font] Add a hb_ot_font_t struct 2022-05-26 05:02:50 -06:00
Behdad Esfahbod 3eb7eff487 Remove varstore cache use if HB_NO_VAR 2022-05-21 15:25:53 -06:00
Behdad Esfahbod 099482a37a [ot-font] Cache v_advance varstore as well 2022-05-21 15:24:23 -06:00
Behdad Esfahbod 5336ba70f6 [HVAR] Cache VarStore region scalars 2022-05-21 15:12:14 -06:00
Behdad Esfahbod 1449498e1d [ot-font] Vertically center glyph in vertical writing fallback 
Fixes https://github.com/harfbuzz/harfbuzz/issues/537
 2022-03-21 21:40:07 -06:00
Behdad Esfahbod bf03d7e962 [ot-font] Use ascent+descent for fallback vertical advance 
This matches what FreeType does.

Part of fixing https://github.com/harfbuzz/harfbuzz/issues/537
 2022-03-21 21:27:31 -06:00
Behdad Esfahbod 6d0e67dee0 [ot-font] Only use vmtx side-bearing if table exists 
Part of fixing https://github.com/harfbuzz/harfbuzz/issues/537
 2022-03-21 21:07:28 -06:00
Behdad Esfahbod 59067db9f4 [font/draw] Slant drawings 
Need to update hb_font_set_synthetic_slant() docs now that we do this.
 2022-02-13 13:21:14 -06:00
Behdad Esfahbod 370bec938b [draw] Rename internal draw_session_t to hb_draw_session_t 2022-02-13 13:21:14 -06:00
Behdad Esfahbod c681331c3f [draw] Rename internal draw_helper_t to draw_session_t 2022-02-13 13:21:14 -06:00
Behdad Esfahbod 8b4f429000 [draw] Virtualize hb_font_draw_glyph() into hb_font_get_glyph_shape() 
To be implemented in hb-ft.
 2022-02-13 13:21:14 -06:00