Commit Graph

92 Commits

Author SHA1 Message Date
Kevin Lubick
1ba9c4df77 [canvaskit] JS API in place for shaped text
Depends on https://skia-review.googlesource.com/c/skia/+/186870

It's optional at build time, which is good given that
it adds about 2MB of uncompressed size (from 4.3 MB to 6.4 MB)

Bug: skia:
Change-Id: I5f54ad628b735c3bc880e917394fb27d16849ebe
Reviewed-on: https://skia-review.googlesource.com/c/187924
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-02-22 15:39:55 +00:00
Ben Wagner
b059194c08 Make SkShaper an interface.
The interface here is not ideal, but there will need to be some build
clean-up before it can be changed.

Change-Id: Ic4d55634405f4c8d9c194e4e6f368287c9669dcd
Reviewed-on: https://skia-review.googlesource.com/c/193036
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-02-19 22:06:47 +00:00
Ben Wagner
18ea3c70fb Add asserts to SkTextBlobBuilderRunHandler.
This makes a user check some postconditions of shaping.

Change-Id: Ifa34bbb9bd8baf18c830d58d99eee9c82811125a
Reviewed-on: https://skia-review.googlesource.com/c/193038
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
2019-02-19 15:55:42 +00:00
Hal Canary
1b85323f10 ICU: enable on wasm
Change-Id: I0647f641d4716af39f4afb832cfcc9fa7d571880
Reviewed-on: https://skia-review.googlesource.com/c/192832
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2019-02-15 18:14:43 +00:00
Ben Wagner
2fe1e23c58 Fix signed/unsigned mismatch in shaper assert.
Change-Id: I05e0e3f5940281b8c9fdcbabf6d8c1013bfa48d4
Reviewed-on: https://skia-review.googlesource.com/c/192824
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-02-14 22:38:37 +00:00
Ben Wagner
84cc4616df Fix assert in shaper.
Need and 'in range' operator.

Change-Id: I57cd6631376a6e857054b4712a70b2aa75a53223
Reviewed-on: https://skia-review.googlesource.com/c/192823
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-02-14 22:16:43 +00:00
Ben Wagner
83597ce581 Remove typeface from SkShaper constructor.
It isn't used anymore.

Change-Id: I4079ff9944aa2483a0cd42130d0e69fb98935731
Reviewed-on: https://skia-review.googlesource.com/c/192820
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
2019-02-14 21:41:28 +00:00
Ben Wagner
f61c936670 Add HarfBuzz callbacks.
This allows for SkTypefaces not backed by OpenType data to get minimal
shaping through HarfBuzz.

Change-Id: I0e4d69627500e0aff40c8989d3734597bfa1f8d6
Reviewed-on: https://skia-review.googlesource.com/c/192681
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-02-14 21:28:38 +00:00
Ben Wagner
b9cc1c6bc2 Fix calculating clusters from start of input.
Still some code hanging on from optimizing for SkTextBlob.

Bug: skia:8420

Change-Id: I947a9ff691fb1fbcb82934c5597e5db11c12f013
Reviewed-on: https://skia-review.googlesource.com/c/192683
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2019-02-14 21:23:38 +00:00
Hal Canary
b6f5378333 SkShaper: enable for unit and render tests
New tests that use skshaper should hide behind SK_USING_SKSHAPER define.

Change-Id: Ifcd726d931e3eb1ff209085a63e8129c9cd5596d
Reviewed-on: https://skia-review.googlesource.com/c/192026
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2019-02-13 16:19:48 +00:00
Ben Wagner
a8d94c1688 Font fallback to handle no font with character.
In the event that no fallback font can be found to handle a character,
just keep using the current font.

Change-Id: I93c852dc8ee5eaa868e48a5ce3e8298a642b15c7
Reviewed-on: https://skia-review.googlesource.com/c/191661
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
2019-02-12 21:52:12 +00:00
Ben Wagner
50becee292 Primitive SkShaper to do primitive line breaking.
This essentially resurects the old SkTextBox code into a primitive
shaper.

Change-Id: Ia4d1a5ab3d1c7d410962b49ac3891298655c7dc4
Reviewed-on: https://skia-review.googlesource.com/c/191562
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
2019-02-12 17:56:40 +00:00
Ben Wagner
454e5fb745 Fix cluster reporting from shaper.
Bug: skia:8420
Change-Id: I7eea8c6b3af2153a1ac1189782fc6cbaaf9ee5c6
Reviewed-on: https://skia-review.googlesource.com/c/190821
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-02-11 21:59:33 +00:00
Florin Malita
500133b1e2 [skshaper] Add per-line callback
Bug: skia:
Change-Id: Iaaf7e95230207bc796dd436a918722a089426e34
Reviewed-on: https://skia-review.googlesource.com/c/190220
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2019-02-07 16:30:00 +00:00
Ben Wagner
2fc1474f9d Add BOT/EOT to Shaper.
This informs HarfBuzz when we are at the beginning or end of a
paragraph so that it can handle a few rules in a special way.

Change-Id: I66a306f1ff7ddb2c1546b0fd9c0cee94cb9f7006
Reviewed-on: https://skia-review.googlesource.com/c/189850
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-02-06 23:04:59 +00:00
Hal Canary
6102192b96 SkLoadICU: simplify
Change-Id: I98cd1f36ca96a92b72974ae228465199638e4bea
Reviewed-on: https://skia-review.googlesource.com/c/189864
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2019-02-06 21:20:49 +00:00
Ben Wagner
0ec8ec27b8 Add a 'correct' shaper.
There are currently two consistent ways to do line breaking. The 'ok'
way where the entire line is shaped and the resulting glyphs broken
into lines based on hopeful cluster breaks. This has the one nice
property of preserving all shaping done by the font. The 'correct' way
is to shape to each break opportunity and pick the best one, then
continue to do so for each line. This has the nice property of not
shaping incorrectly.

Fortunately, the actual implementation can be hidden behind a common
interface. Keep both of them to ensure this continues to be the case.

Change-Id: I68086731c9c2eea00b26f1447e3ec17aba799ab3
Reviewed-on: https://skia-review.googlesource.com/c/156641
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2019-02-05 20:11:24 +00:00
Hal Canary
32498f0846 GN/ICU cleanup
For targets that depend on ICU, only define if `skia_use_icu` is set.

Move declare_args/skia_use_icu into skia.gni.  Other variables that need
to work like that can move there later.

icu/BUILD.gn defines SK_USING_THIRD_PARTY_ICU if needed.
SkShaper_harfbuzz.cpp SkPDFSubsetFont.cpp respects
SK_USING_THIRD_PARTY_ICU when calling SkLoadICU().

sfntly/BUILD.gn, harfbuzz/BUILD.gn, icu/icu.gni uses $_src variable to
reduce verbosity.   icu/icu.gni adds more headersto sources.

Change-Id: I9e000b9b19902d9f5c0c64e989bf42466aa8a299
Reviewed-on: https://skia-review.googlesource.com/c/189304
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
2019-02-05 17:27:55 +00:00
Kevin Lubick
57abfe9737 Adjust variable names from paint to font
Bug: skia:
Change-Id: I9ca7c8dd5e0122b2a9d4edd4c4f4934e36151b7e
Reviewed-on: https://skia-review.googlesource.com/c/187383
Auto-Submit: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2019-01-28 20:57:56 +00:00
Ben Wagner
c5aa8ebe0d Use only icu c api in shaper.
Change-Id: I6e05404465b44ca48d391d0502dadbcef0b4b111
Reviewed-on: https://skia-review.googlesource.com/c/186702
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-01-24 21:53:25 +00:00
Mike Reed
77f94ea72b Move more utils into SkFontPriv, IWYU
Fissioned from https://skia-review.googlesource.com/c/skia/+/185460

Bug: skia:
Change-Id: Iaf980e931c17196f917602fc58fc39ab51e3d248
Reviewed-on: https://skia-review.googlesource.com/c/185840
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
2019-01-22 22:24:03 +00:00
Florin Malita
a4e1a63452 [skshaper] Relax create_hb_font assert
Log a message in debug mode instead of crashing.

Change-Id: Ib8d7733f3aab2e9f1324188a221550ccf13563cb
Reviewed-on: https://skia-review.googlesource.com/c/185881
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
2019-01-22 22:20:33 +00:00
Mike Reed
9a4a05e211 iwyu
Bug: skia:
Change-Id: I4b9e1ef1e352f3495e92479501cfc5b6422e7a6d
Reviewed-on: https://skia-review.googlesource.com/c/185682
Commit-Queue: Mike Reed <reed@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-01-22 14:08:13 +00:00
Florin Malita
6d415bce3a [skshaper] Build tweaks
Preps for building in Chromium & G3.

Change-Id: I4eb802f27aac7d3652c3b3ce427dcc758d6c31fe
Reviewed-on: https://skia-review.googlesource.com/c/185000
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
2019-01-18 20:25:40 +00:00
Florin Malita
950243df0e Hack up SkShaper to pass additional callback info
- rename LineHandler -> RunHandler (since it gets called per run)
- pass additionl run info:

  * line index
  * cumulative advance
  * ascent/descent/leading

Bug: skia:
Change-Id: Ie848e5a35243088b99989c73fdec44c6a1bdd051
Reviewed-on: https://skia-review.googlesource.com/c/183300
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
2019-01-11 17:04:26 +00:00
Mike Reed
22451ccae5 accessors for RunBuffer as points or rsxforms
trying to reduce casts at call-sites

Bug: skia:
Change-Id: I7c74cfd89111f7a197cbb1d77b499e2adc193579
Reviewed-on: https://skia-review.googlesource.com/c/180363
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2019-01-02 04:10:36 +00:00
Florin Malita
9867f61160 SkShaper per-line callback
Tweak SkShaper to call out for each line, instead of bundling everything
as a text blob.

Change-Id: Ic522f88afcf31cefd873dc8b5cde1ac2e107c64f
Reviewed-on: https://skia-review.googlesource.com/c/176592
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
2018-12-12 17:54:12 +00:00
Mike Reed
6d59568196 change private alloc methods to also take fonts
Bug: skia:2664
Change-Id: I772534179ce0c948984640f9fffc22e0372fce97
Reviewed-on: https://skia-review.googlesource.com/c/174848
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2018-12-06 02:15:36 +00:00
Hal Canary
2a1848d2aa SkShaper->SkFont
Change-Id: I6293f08c426650e3d1da8b2f94a81f7b0a65e8a3
Reviewed-on: https://skia-review.googlesource.com/c/172969
Commit-Queue: Ben Wagner <bungeman@google.com>
Auto-Submit: Hal Canary <halcanary@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2018-11-27 18:53:32 +00:00
Hal Canary
ddef43ffdf SkShaper: better error info.
Change-Id: Ie7966e22282ef25861cc775bd0904c113ded76c1
Reviewed-on: https://skia-review.googlesource.com/c/171523
Commit-Queue: Hal Canary <halcanary@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Auto-Submit: Hal Canary <halcanary@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2018-11-16 16:21:00 +00:00
Mike Reed
b5784ace85 use SkFontMetrics so we can deprecated the typedef
Bug: skia:
Change-Id: Icd40c042b0a8251bbd0b39dd3ee1a4634fff379f
Reviewed-on: https://skia-review.googlesource.com/c/170344
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2018-11-12 15:03:03 +00:00
Hal Canary
0dfa208450 SkShaper: Fix a couple of crashes when fonts aren't found
Change-Id: Id62bb0e0edde25fe90f63547d4dbedada2c09909
Reviewed-on: https://skia-review.googlesource.com/c/166803
Auto-Submit: Hal Canary <halcanary@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2018-10-31 17:46:54 +00:00
Ben Wagner
a900ad5400 Make fallback font iterator in shaper cache fallback.
Most of the time when doing fallback there is a simple ping pong between
the requested font and a given fallback font. Use the fallback entry as
a cache of one. This greatly speeds up the example layout.

In the future more work will be done on caching.

Change-Id: I3efe819d6d08d096715cf505cc8d894a282a745b
Reviewed-on: https://skia-review.googlesource.com/151100
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2018-09-04 18:00:56 +00:00
Cary Clark
e12a090a63 make some textblob builders private for now
Move SkTextBlobBuilder::allocRunText* to private: for the time
being, to reduce the documented interface footprint.

No code is deleted; the functions may be restored when a
client is ready to call them.

Also, add SkTextBlob::MakeFromString to complement
SkTextBlob::MakeFromText.

R=halcanary@google.com,fmalita@google.com
TBR=reed@google.com
Bug: skia:6818
Change-Id: If09d4da4ce38b680d73f25d187e3d06eeb0ec652
Reviewed-on: https://skia-review.googlesource.com/146521
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Cary Clark <caryclark@skia.org>
2018-08-09 15:01:31 +00:00
Ben Wagner
177742435e Some iwyu for SkShaper_harfbuzz.
This makes it easier to see what ties this module to Skia.

Change-Id: I392ae4f89fb1afe9193bdb2fda95036f4f5623ed
Reviewed-on: https://skia-review.googlesource.com/145882
Commit-Queue: Ben Wagner <bungeman@google.com>
Commit-Queue: Herb Derby <herb@google.com>
Auto-Submit: Ben Wagner <bungeman@google.com>
Reviewed-by: Herb Derby <herb@google.com>
2018-08-07 19:00:58 +00:00
Ben Wagner
c0c99b3a69 Add context to shaper.
This allows correct shaping across any run breaks.

Change-Id: Ib305bd974ccee2471b1dfe8bd895fb28e475177f
Reviewed-on: https://skia-review.googlesource.com/145726
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2018-08-07 18:24:14 +00:00
Hal Canary
f107a2fd01 SkUTF
Create new header and namespace, `SkUTF` where we are putting all of our
robust, well documented UTF-8, UTF-16, and UTF-32 functions:
`SkUTF::{Count,Next,To}UTF{8,16,32}()`.

SkUTF.h and SkUTF.cpp do not depend on the rest of Skia and are suitable
for re-use in other modules.

Some of the old UTF-{8,16} functions still live in SkUtils.h; their use
will be phased out in future CLs.

Also added more unit testing and cleaned up old tests.

Removed functions that were unused outside of tests or used only once.

Change-Id: Iaa59b8705abccf9c4ba082f855da368a0bad8380
Reviewed-on: https://skia-review.googlesource.com/143306
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2018-07-31 20:11:19 +00:00
Hal Canary
4014ba6ec7 SkUtils: remove some versions of UTF routines.
Change-Id: Ib1f776ae472117c23d2145253adf25fceb412b32
Reviewed-on: https://skia-review.googlesource.com/143111
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2018-07-25 17:21:56 +00:00
Hal Canary
c640d0dc96 Revert "Revert "SkTypes: extract SkTo""
This reverts commit fdcfb8b7c2.

> Original change's description:
> > SkTypes: extract SkTo
> >
> > Change-Id: I8de790d5013db2105ad885fa2683303d7c250b09
> > Reviewed-on: https://skia-review.googlesource.com/133620
> > Reviewed-by: Mike Klein <mtklein@google.com>

Change-Id: Ida74fbc5c21248a724a5edbf9fae18a33bcb23aa
Reviewed-on: https://skia-review.googlesource.com/134506
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2018-06-14 14:55:17 +00:00
Hal Canary
fdcfb8b7c2 Revert "SkTypes: extract SkTo"
This reverts commit 2a2f675926.

Reason for revert: this appears to be what is holding up the Chrome roll.

Original change's description:
> SkTypes: extract SkTo
>
> Change-Id: I8de790d5013db2105ad885fa2683303d7c250b09
> Reviewed-on: https://skia-review.googlesource.com/133620
> Reviewed-by: Mike Klein <mtklein@google.com>

TBR=mtklein@google.com,halcanary@google.com

No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: Iafd738aedfb679a23c061a51afe4b98a8d4cdfae
Reviewed-on: https://skia-review.googlesource.com/134504
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2018-06-13 13:45:47 +00:00
Hal Canary
2a2f675926 SkTypes: extract SkTo
Change-Id: I8de790d5013db2105ad885fa2683303d7c250b09
Reviewed-on: https://skia-review.googlesource.com/133620
Reviewed-by: Mike Klein <mtklein@google.com>
2018-06-12 15:03:21 +00:00
Herb Derby
264182c3f7 Make SkShaper a module
Change-Id: I3709e49ba865f14260660cc07a762b9ac837cb3c
Reviewed-on: https://skia-review.googlesource.com/130602
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Herb Derby <herb@google.com>
2018-05-30 04:04:07 +00:00