| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.filter.canvasFilterObject.colorMatrix</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/html/canvas/resources/canvas-tests.js"></script> |
| |
| <h1>2d.filter.canvasFilterObject.colorMatrix</h1> |
| <p class="desc">Test the functionality of ColorMatrix filters in CanvasFilter objects</p> |
| |
| |
| <script> |
| 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 offscreenCanvas = new OffscreenCanvas(100, 50); |
| var ctx = offscreenCanvas.getContext('2d'); |
| |
| assert_throws_js(TypeError, function() { new CanvasFilter({colorMatrix: {values: undefined}}); }); |
| assert_throws_js(TypeError, function() { new CanvasFilter({colorMatrix: {values: "foo"}}); }); |
| assert_throws_js(TypeError, function() { new CanvasFilter({colorMatrix: {values: null}}); }); |
| assert_throws_js(TypeError, function() { new CanvasFilter({colorMatrix: {values: [1, 2, 3]}}); }); |
| assert_throws_js(TypeError, function() { new CanvasFilter({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({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({colorMatrix: {type: "hueRotate", values: 0}}); |
| ctx.fillRect(0, 0, 100, 50); |
| _assertPixelApprox(offscreenCanvas, 10,10, 255,0,0,255, "10,10", "255,0,0,255", 2); |
| ctx.filter = new CanvasFilter({colorMatrix: {type: "hueRotate", values: 90}}); |
| ctx.fillRect(0, 0, 100, 50); |
| _assertPixelApprox(offscreenCanvas, 10,10, 0,91,0,255, "10,10", "0,91,0,255", 2); |
| ctx.filter = new CanvasFilter({colorMatrix: {type: "hueRotate", values: 180}}); |
| ctx.fillRect(0, 0, 100, 50); |
| _assertPixelApprox(offscreenCanvas, 10,10, 0,109,109,255, "10,10", "0,109,109,255", 2); |
| ctx.filter = new CanvasFilter({colorMatrix: {type: "hueRotate", values: 270}}); |
| ctx.fillRect(0, 0, 100, 50); |
| _assertPixelApprox(offscreenCanvas, 10,10, 109,18,255,255, "10,10", "109,18,255,255", 2); |
| ctx.filter = new CanvasFilter({colorMatrix: {type: "saturate", values: 0.5}}); |
| ctx.fillRect(0, 0, 100, 50); |
| _assertPixelApprox(offscreenCanvas, 10,10, 155,27,27,255, "10,10", "155,27,27,255", 2); |
| ctx.clearRect(0, 0, 100, 50); |
| ctx.filter = new CanvasFilter({colorMatrix: {type: "luminanceToAlpha"}}); |
| ctx.fillRect(0, 0, 100, 50); |
| _assertPixelApprox(offscreenCanvas, 10,10, 0,0,0,54, "10,10", "0,0,0,54", 2); |
| ctx.filter = new CanvasFilter({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(offscreenCanvas, 10,10, 0,255,0,255, "10,10", "0,255,0,255", 2); |
| _assertPixelApprox(offscreenCanvas, 60,10, 0,255,0,255, "60,10", "0,255,0,255", 2); |
| _assertPixelApprox(offscreenCanvas, 10,30, 0,255,0,255, "10,30", "0,255,0,255", 2); |
| _assertPixelApprox(offscreenCanvas, 60,30, 0,255,0,255, "60,30", "0,255,0,255", 2); |
| t.done(); |
| |
| }); |
| </script> |
