Commit Graph

25 Commits

Author SHA1 Message Date
Kevin Lubick
ec4903d515 [canvaskit] Use textblob
Removes old API and replaces with new version.
drawText now requires SkFont and other changes.

Bug: skia:
Change-Id: Ie42a5243629542934c761223ed2e8dc6685d3572
Reviewed-on: https://skia-review.googlesource.com/c/183389
Reviewed-by: Mike Reed <reed@google.com>
2019-01-14 14:12:59 +00:00
Kevin Lubick
65846c04e0 [canvaskit] Add .ready() which is a real promise
Prior to this, CanvasKit was unintentionally a thenable, which means if
it was used to resolve a Promise, certain logic would be called which
would put it into an infinite loop. By adding a .ready() which returns
a proper Promise and removes the .then(), this should make the CanvasKit
libary safer.

For now, the .then() still exists unless .ready() is called. .then will
be removed unconditionally in 0.4.0 which will be out after all known
clients (e.g. jsfiddle.skia.org) are changed.

See: https://github.com/kripken/emscripten/issues/5820

Bug: skia:
Change-Id: Ie4093f6b0ce03070ef737941693b06dfff93f61c
Reviewed-on: https://skia-review.googlesource.com/c/181177
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
2019-01-04 19:48:19 +00:00
Kevin Lubick
35ac038ce0 [canvaskit] Move to using SkFont instead of SkPaint.measure*
Bug: skia:
Change-Id: I72a744f58072f0bc5f9cad561c4367ff5d32e5ab
Reviewed-on: https://skia-review.googlesource.com/c/180643
Reviewed-by: Mike Reed <reed@google.com>
2019-01-02 20:52:35 +00:00
Kevin Lubick
a40f832ae1 [canvaskit] Add Path2D to Canvas API
This moves the shared logic into path2d.js from
canvas2dcontext.js.

Bug: skia:
Change-Id: Id63bc52a190109f7cbc4e17ddb5603e6e87d5dc0
Reviewed-on: https://skia-review.googlesource.com/c/178268
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
2018-12-17 21:19:48 +00:00
Kevin Lubick
8e4a331c8a [canvaskit] Canvas API for loading fonts
There's the barest hint of a "font manager" here.
Basically, nothing smart to deal with bold or fallbacks.

Maybe one day, we'll expose
SkTypeface* matchStyleCSS3(const SkFontStyle& pattern);

and do smart things for fallbacks, but for now that's not
in the immediate future.

Docs-Preview: https://skia.org/?cl=177067
Bug: skia:
Change-Id: Iaeabcbf5ff4511a01b37c16c983e447c25b0e3e7
Reviewed-on: https://skia-review.googlesource.com/c/177067
Reviewed-by: Ben Wagner <bungeman@google.com>
2018-12-14 21:32:21 +00:00
Kevin Lubick
d090a706bd [canvaskit] Correctly translate between shadow radius and sigma
Bug: skia:
Change-Id: I7e069407334f8b0238fd6d9f529cdf30e3e269be
Reviewed-on: https://skia-review.googlesource.com/c/176960
Reviewed-by: Florin Malita <fmalita@chromium.org>
2018-12-12 15:40:08 +00:00
Kevin Lubick
ddd0a333f4 [canvaskit] Allow users to load their own fonts
Instead of using the test font(s), now ship with a small
(100k) Monospace font. This can be disabled by:
    compile.sh no_font ...

This saves about 350k (164k gzipped) in binary size.

Bug: skia:
Change-Id: I195e3b35bea86d0f096066c1c6a44a4b602571f3
Reviewed-on: https://skia-review.googlesource.com/c/176580
Reviewed-by: Ben Wagner <bungeman@google.com>
2018-12-12 15:40:08 +00:00
Kevin Lubick
53eabf6871 [canvaskit] Refactor Canvas2D JS into own files
Rather than one monolithic file, we now have one monolithic
file (canvascontext2d) and several smaller files (one per class,
and some helpers).

This should make the code navigation a little easier.

Bug: skia:
Change-Id: Ia191c2db778591af21d2a6126f053c17c4f677f1
Reviewed-on: https://skia-review.googlesource.com/c/175996
Reviewed-by: Florin Malita <fmalita@chromium.org>
2018-12-11 12:02:27 +00:00
Kevin Lubick
5d5723c1d8 [canvaskit] Refactor with getTotalMatrix
Follow up from https://skia-review.googlesource.com/c/skia/+/174843

Bug: skia:
Change-Id: I3b99d8550ecdf8085e11b6fbfbb304c857061149
Reviewed-on: https://skia-review.googlesource.com/c/175583
Reviewed-by: Florin Malita <fmalita@chromium.org>
2018-12-07 18:59:54 +00:00
Kevin Lubick
1646e7d715 [canvaskit] Add isPointInPath / isPointInStroke
While working on this, I realized some things I did
caused winding to be inconsistent with what the Canvas
spec said (and with what Chrome did).

This CL includes 2 changes to remedy that:
 - removal of the subpath (which added needless complication).
 - re-write of ellipse() (to mirror Chrome's implementation).

Bug: skia:
Change-Id: Idd6c8a40b3c46598892e50a1e586f2ff66b801e3
Reviewed-on: https://skia-review.googlesource.com/c/175425
Reviewed-by: Florin Malita <fmalita@chromium.org>
2018-12-07 18:58:48 +00:00
Kevin Lubick
d29edd77f5 [canvaskit] Add createPattern support to canvasAPI
Add Changelog to start tracking API changes (in preparation
for NPM)

Simplify globalAlpha passing.

API change:
 - Make ImageShader take an SkImage instead of encoded bytes.

Bug: skia:
Change-Id: I716f001b54ed58da3f40ae4e060b7098b550af9f
Reviewed-on: https://skia-review.googlesource.com/c/175260
Reviewed-by: Florin Malita <fmalita@chromium.org>
2018-12-07 14:14:37 +00:00
Kevin Lubick
ae9dfc0e58 [canvaskit] In Canvas2d, move matrix to internal canvas
This is similar to how Chrome does it - more or less unapplying
the matrix as it changes to keep everything in the same
coordinate space.

We still need to keep the matrix around for things and do the math
ourselves for things like gradients.

This simplifies a bunch of logic, which makes me happy.

Bug: skia:
Change-Id: I66ee379a501cc6701f51c0f0b51d4e0634a4a692
Reviewed-on: https://skia-review.googlesource.com/c/174843
Reviewed-by: Florin Malita <fmalita@chromium.org>
2018-12-06 17:03:46 +00:00
Kevin Lubick
92d8ea6f99 [canvaskit] remove setMatrix
Bug: skia:
Change-Id: I9fc895e8b499fec8d72dfcd794c705380108bf9b
Reviewed-on: https://skia-review.googlesource.com/c/174314
Reviewed-by: Mike Klein <mtklein@google.com>
2018-12-04 21:32:45 +00:00
Kevin Lubick
52b9f370b3 [canvaskit] Support getImageData/putImageData
setMatrix -> _setMatrix with the hope of removing it
from the API (it breaks the save()/restore() model) and
replacing it with concat (which I'll try in a follow on CL).

Adds MakeImage for those times when a client has pixels
and needs to clip them (e.g. putImageData with 7 args).

This removes SkSurface._readPixels, which I might have
been holding wrong. It might get re-surfaced eventually.

Bug: skia:
Change-Id: Iee9a494db720b22e23f9e674b20ba678fad91d25
Reviewed-on: https://skia-review.googlesource.com/c/174300
Reviewed-by: Mike Klein <mtklein@google.com>
2018-12-04 20:40:14 +00:00
Kevin Lubick
0a1293c2e4 [canvaskit] Add drawImage support
Adds drawImageRect as well.

Bug: skia:
Change-Id: Ib74f92a3ee22664297d8ce7ff1d2cd2644b806b7
Reviewed-on: https://skia-review.googlesource.com/c/173990
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2018-12-03 18:47:29 +00:00
Kevin Lubick
dee08d8f65 [canvaskit] Fix conversion of large images to base64
Bug: skia:
Change-Id: I8ab40a382557ae6bd13884ddce027e51ce1fb21f
Reviewed-on: https://skia-review.googlesource.com/c/173701
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2018-11-30 18:43:37 +00:00
Kevin Lubick
eb2f6b0adb [canvaskit] Add gradients and clips
Refactors things inside to support both color
and gradient as _fillStyle/_strokeStyle.

Bug: skia:
Change-Id: I364ceb7d55c41e11161d5577dcd1611a592bbc29
Reviewed-on: https://skia-review.googlesource.com/c/173421
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2018-11-30 13:06:07 +00:00
Kevin Lubick
43ff69a83f [canvaskit] Fix arc() call
Bug: skia:
Change-Id: I7a06b4bd5d2e88b12b08b0568301515653512ebb
Reviewed-on: https://skia-review.googlesource.com/c/173236
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2018-11-28 20:52:09 +00:00
Kevin Lubick
12c0e50fda [canvaskit] support globalAlpha and dashed strokes
This involves a refactor of how we deal with paint.
Now, we have a source-of-truth paint that is copied
and modified for each of fill/stroke/shadow.

Adds preliminary support for blend modes.

Most of what remains is text, images, and gradients.

Bug: skia:
Change-Id: I41806adeb7de4faa6c98a580c4f1de4e4a34a37d
Reviewed-on: https://skia-review.googlesource.com/c/173223
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2018-11-28 19:03:19 +00:00
Kevin Lubick
61ef7b2589 [canvaskit] Add shadow and save/restore support
This also exposes the ShadowUtils::drawShadow on Canvas,
even though it wasn't what was needed to duplicate
the Canvas effect.

Bug: skia:
Change-Id: I12276ef106244218e4827b7fcd7949c83cf13e5f
Reviewed-on: https://skia-review.googlesource.com/c/172967
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2018-11-27 18:56:09 +00:00
Kevin Lubick
b9db3906d5 [canvaskit] Make transforms work properly
This re-works the subpath model and does transforming
of ports in JS rather than in C++; the latter was not easy
to conform to the Canvas Spec, especially for changing
transforms in the middle of a path.

Additionally adds jpeg to the available images it can produce.

Bug: skia:
Change-Id: I5a52ec341d4060198c8680aa4d3b85a26f77b6b9
Reviewed-on: https://skia-review.googlesource.com/c/172500
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2018-11-26 17:16:42 +00:00
Kevin Lubick
6fccc9db67 [canvaskit] Add debug-mode only logs
And a fix for node.

Docs-Preview: https://skia.org/?cl=172143
Bug: skia:
Change-Id: I519c2693b386aa68655f235281d932ee5fffbc61
Reviewed-on: https://skia-review.googlesource.com/c/172143
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2018-11-20 22:22:04 +00:00
Kevin Lubick
1a05fceb38 [canvaskit] Expand canvas2d API
Made addPath take one more arg to allow for append/expand
(which makes emulating the HTML canvas easier).

Add Gold test for various lineTo/pathTo, etc.

Make CanvasKit.Color() choose a better value for alpha
when omitted (was 0, should be 1).

Add some parsing logic to deal with colors/font sizes.
Fonts are going to be rather complex it seems.

Moves some arc-related logic to the JS side, (although
this should preserve the behavior of CanvasKit.arc() to
behave like the Canvas implementation)

Make Examples and tests to a side-by-side comparison to
HTML canvas where applicable.

Add a Changelog for PathKit.  There was a bug (I thought), but
turns out I was wrong.  The Changelog will be for future
bug fixes.

Bug: skia:
Change-Id: I1bd603fdb518232604b098e24543e3453015b504
Reviewed-on: https://skia-review.googlesource.com/c/170446
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2018-11-20 18:39:43 +00:00
Kevin Lubick
b5ae3b5afc [canvaskit] Add drawVertices API
This also does some clean up to how we name enums - the caps felt a bit
obnoxious. CAPS are reserved now for constants (like colors).

Small bug fix with leaking memory on discrete path effects

This also adds a few more things from PathKit

Bug: skia:
Change-Id: Iad7e21ac36d35a36a8b255dc82b1dcc886344db1
Reviewed-on: https://skia-review.googlesource.com/c/166804
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2018-11-03 12:18:04 +00:00
Kevin Lubick
006a6f3b14 [canvaskit] Fleshing out the beginnings of a Canvas API
I can probably write most, if not all, of a Canvas API in
JS using the SkCanvas and SkPaint objects. This lets us expose
the fancier API and optionally have a more familiar API.

This is controlled at compile time, i.e. bring in the extra
JS or not.

There is still plenty of the API that needs working, but
this is meant to outlay the plans of where this is going.

Bug: skia:
Change-Id: I2e36a33c24c2bacd52811dc85508dba170ab0dd7
Reviewed-on: https://skia-review.googlesource.com/c/163490
Reviewed-by: Mike Reed <reed@google.com>
2018-10-22 18:02:09 +00:00