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// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.filter.canvasFilterObject.colorMatrix.tentative
// Description:Test the functionality of ColorMatrix filters in CanvasFilter objects
// Note:
importScripts("/resources/testharness.js");
importScripts("/html/canvas/resources/canvas-tests.js");
var t = async_test("Test the functionality of ColorMatrix filters in CanvasFilter objects");
var t_pass = t.done.bind(t);
var t_fail = t.step_func(function(reason) {
throw reason;
});
t.step(function() {
var canvas = new OffscreenCanvas(100, 50);
var ctx = canvas.getContext('2d');
assert_throws_js(TypeError, function() { new CanvasFilter({name: 'colorMatrix', values: undefined}); });
assert_throws_js(TypeError, function() { new CanvasFilter({name: 'colorMatrix', values: 'foo'}); });
assert_throws_js(TypeError, function() { new CanvasFilter({name: 'colorMatrix', values: null}); });
assert_throws_js(TypeError, function() { new CanvasFilter({name: 'colorMatrix', values: [1, 2, 3]}); });
assert_throws_js(TypeError, function() { new CanvasFilter({name: 'colorMatrix', values: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 'a']}); });
assert_throws_js(TypeError, function() { new CanvasFilter({name: 'colorMatrix', values: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, Infinity]}); });
ctx.fillStyle = '#f00';
ctx.filter = new CanvasFilter({name: 'colorMatrix', type: 'hueRotate', values: 0});
ctx.fillRect(0, 0, 100, 50);
_assertPixelApprox(canvas, 10,10, 255,0,0,255, 2);
ctx.filter = new CanvasFilter({name: 'colorMatrix', type: 'hueRotate', values: 90});
ctx.fillRect(0, 0, 100, 50);
_assertPixelApprox(canvas, 10,10, 0,91,0,255, 2);
ctx.filter = new CanvasFilter({name: 'colorMatrix', type: 'hueRotate', values: 180});
ctx.fillRect(0, 0, 100, 50);
_assertPixelApprox(canvas, 10,10, 0,109,109,255, 2);
ctx.filter = new CanvasFilter({name: 'colorMatrix', type: 'hueRotate', values: 270});
ctx.fillRect(0, 0, 100, 50);
_assertPixelApprox(canvas, 10,10, 109,18,255,255, 2);
ctx.filter = new CanvasFilter({name: 'colorMatrix', type: 'saturate', values: 0.5});
ctx.fillRect(0, 0, 100, 50);
_assertPixelApprox(canvas, 10,10, 155,27,27,255, 2);
ctx.clearRect(0, 0, 100, 50);
ctx.filter = new CanvasFilter({name: 'colorMatrix', type: 'luminanceToAlpha'});
ctx.fillRect(0, 0, 100, 50);
_assertPixelApprox(canvas, 10,10, 0,0,0,54, 2);
ctx.filter = new CanvasFilter({name: 'colorMatrix', values: [
0, 0, 0, 0, 0,
1, 1, 1, 1, 0,
0, 0, 0, 0, 0,
0, 0, 0, 1, 0
]});
ctx.fillRect(0, 0, 50, 25);
ctx.fillStyle = '#0f0';
ctx.fillRect(50, 0, 50, 25);
ctx.fillStyle = '#00f';
ctx.fillRect(0, 25, 50, 25);
ctx.fillStyle = '#fff';
ctx.fillRect(50, 25, 50, 25);
_assertPixelApprox(canvas, 10,10, 0,255,0,255, 2);
_assertPixelApprox(canvas, 60,10, 0,255,0,255, 2);
_assertPixelApprox(canvas, 10,30, 0,255,0,255, 2);
_assertPixelApprox(canvas, 60,30, 0,255,0,255, 2);
t.done();
});
done();
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