skia2/modules/canvaskit/tests/util.js
Kevin Lubick 15b40236bd [canvaskit] Add various ImageFilters
We are pretty comfy exposing this set for the long-term.

CanvasKit will generally support chains of image filters,
not necessarily arbitrary DAGs, just to simplify the
points needed to expose.

Change the naming around MaskFilters also, I like having
the factories be a class function, just to keep things
a bit better organized and minimize the amount of things
we want to keep on the top level CanvasKit object.

Change-Id: If32c630efa2fd8bc4bac84d0c3461ac3c0d21263
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/250758
Reviewed-by: Robert Phillips <robertphillips@google.com>
2019-10-29 14:48:33 +00:00

31 lines
1.1 KiB
JavaScript

// The size of the golden images (DMs)
const CANVAS_WIDTH = 600;
const CANVAS_HEIGHT = 600;
function reportSurface(surface, testname, done) {
// In docker, the webgl canvas is blank, but the surface has the pixel
// data. So, we copy it out and draw it to a normal canvas to take a picture.
// To be consistent across CPU and GPU, we just do it for all configurations
// (even though the CPU canvas shows up after flush just fine).
let pixels = surface.getCanvas().readPixels(0, 0, CANVAS_WIDTH, CANVAS_HEIGHT);
pixels = new Uint8ClampedArray(pixels.buffer);
const imageData = new ImageData(pixels, CANVAS_WIDTH, CANVAS_HEIGHT);
let reportingCanvas = document.getElementById('report');
reportingCanvas.getContext('2d').putImageData(imageData, 0, 0);
reportCanvas(reportingCanvas, testname).then(() => {
done();
}).catch(reportError(done));
}
function starPath(CanvasKit, X=128, Y=128, R=116) {
let p = new CanvasKit.SkPath();
p.moveTo(X + R, Y);
for (let i = 1; i < 8; i++) {
let a = 2.6927937 * i;
p.lineTo(X + R * Math.cos(a), Y + R * Math.sin(a));
}
return p;
}