| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.gradient.interpolate.colouralpha</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/2dcontext/resources/canvas-tests.js"></script> |
| |
| <h1>2d.gradient.interpolate.colouralpha</h1> |
| <p class="desc"></p> |
| |
| |
| <script> |
| var t = async_test(""); |
| t.step(function() { |
| |
| var offscreenCanvas = new OffscreenCanvas(100, 50); |
| var ctx = offscreenCanvas.getContext('2d'); |
| |
| var g = ctx.createLinearGradient(0, 0, 100, 0); |
| g.addColorStop(0, 'rgba(255,255,0, 0)'); |
| g.addColorStop(1, 'rgba(0,0,255, 1)'); |
| ctx.fillStyle = g; |
| ctx.fillRect(0, 0, 100, 50); |
| _assertPixelApprox(offscreenCanvas, 25,25, 190,190,65,65, "25,25", "190,190,65,65", 3); |
| _assertPixelApprox(offscreenCanvas, 50,25, 126,126,128,128, "50,25", "126,126,128,128", 3); |
| _assertPixelApprox(offscreenCanvas, 75,25, 62,62,192,192, "75,25", "62,62,192,192", 3); |
| |
| t.done(); |
| |
| }); |
| </script> |
