| // DO NOT EDIT! This test has been generated by tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.imageData.get.range |
| // Description:getImageData() returns values in the range [0, 255] |
| // Note: |
| |
| importScripts("/resources/testharness.js"); |
| importScripts("/2dcontext/resources/canvas-tests.js"); |
| |
| var t = async_test("getImageData() returns values in the range [0, 255]"); |
| 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'); |
| |
| ctx.fillStyle = '#000'; |
| ctx.fillRect(0, 0, 100, 50); |
| ctx.fillStyle = '#fff'; |
| ctx.fillRect(20, 10, 60, 10); |
| var imgdata1 = ctx.getImageData(10, 5, 1, 1); |
| _assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0"); |
| var imgdata2 = ctx.getImageData(30, 15, 1, 1); |
| _assertSame(imgdata2.data[0], 255, "imgdata2.data[\""+(0)+"\"]", "255"); |
| t.done(); |
| |
| }); |
| done(); |