[canvaskit] High performance Path APIs
https://skia-review.googlesource.com/c/skia/+/297896 draws
several paths with over 1000 points (one has ~250k) and
was pretty slow. We already had a way to provide a flat(ish)
array of all the verbs, points and weights mushed together
(although that should be cleaned up to prefer taking a 1d
array).
This adds an additional way to provide multiple verbs,
points, (and optionally weights, if conics are used) to CanvasKit.
This makes things dramatically faster because of batch copying
the values between JS and WASM (or using Malloc).
Additionally, the above CL revealed a need to be able to
use a subsection of a Malloc'd array efficiently. Thus,
I added subarray as a method of the Malloc object, which
can be used effectively as a pointer (i.e. no copying).
Change-Id: I2c1d26b25118fb9949e878b1b519d93efcfa5019
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297841
Reviewed-by: Nathaniel Nifong <nifong@google.com>
Reviewed-by: Chris Dalton <csmartdalton@google.com>
7 files changed