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| 1 <!DOCTYPE html> |
| 2 <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| 3 <title>OffscreenCanvas test: 2d.gradient.interpolate.overlap</title> |
| 4 <script src="/resources/testharness.js"></script> |
| 5 <script src="/resources/testharnessreport.js"></script> |
| 6 <script src="/common/canvas-tests.js"></script> |
| 7 |
| 8 <h1>2d.gradient.interpolate.overlap</h1> |
| 9 <p class="desc"></p> |
| 10 |
| 11 |
| 12 <script> |
| 13 var t = async_test(""); |
| 14 t.step(function() { |
| 15 |
| 16 var offscreenCanvas = new OffscreenCanvas(100, 50); |
| 17 var ctx = offscreenCanvas.getContext('2d'); |
| 18 |
| 19 offscreenCanvas.width = 200; |
| 20 var g = ctx.createLinearGradient(0, 0, 200, 0); |
| 21 g.addColorStop(0, '#f00'); |
| 22 g.addColorStop(0, '#ff0'); |
| 23 g.addColorStop(0.25, '#00f'); |
| 24 g.addColorStop(0.25, '#0f0'); |
| 25 g.addColorStop(0.25, '#0f0'); |
| 26 g.addColorStop(0.25, '#0f0'); |
| 27 g.addColorStop(0.25, '#ff0'); |
| 28 g.addColorStop(0.5, '#00f'); |
| 29 g.addColorStop(0.5, '#0f0'); |
| 30 g.addColorStop(0.75, '#00f'); |
| 31 g.addColorStop(0.75, '#f00'); |
| 32 g.addColorStop(0.75, '#ff0'); |
| 33 g.addColorStop(0.5, '#0f0'); |
| 34 g.addColorStop(0.5, '#0f0'); |
| 35 g.addColorStop(0.5, '#ff0'); |
| 36 g.addColorStop(1, '#00f'); |
| 37 ctx.fillStyle = g; |
| 38 ctx.fillRect(0, 0, 200, 50); |
| 39 _assertPixelApprox(offscreenCanvas, 49,25, 0,0,255,255, "49,25", "0,0,255,255",
16); |
| 40 _assertPixelApprox(offscreenCanvas, 51,25, 255,255,0,255, "51,25", "255,255,0,25
5", 16); |
| 41 _assertPixelApprox(offscreenCanvas, 99,25, 0,0,255,255, "99,25", "0,0,255,255",
16); |
| 42 _assertPixelApprox(offscreenCanvas, 101,25, 255,255,0,255, "101,25", "255,255,0,
255", 16); |
| 43 _assertPixelApprox(offscreenCanvas, 149,25, 0,0,255,255, "149,25", "0,0,255,255"
, 16); |
| 44 _assertPixelApprox(offscreenCanvas, 151,25, 255,255,0,255, "151,25", "255,255,0,
255", 16); |
| 45 |
| 46 t.done(); |
| 47 |
| 48 }); |
| 49 </script> |
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