| // DO NOT EDIT! This test has been generated by tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.imageData.object.round |
| // Description:ImageData.data rounds numbers with round-to-zero |
| // Note: |
| |
| importScripts("/resources/testharness.js"); |
| importScripts("/common/canvas-tests.js"); |
| |
| var t = async_test("ImageData.data rounds numbers with round-to-zero"); |
| t.step(function() { |
| |
| var offscreenCanvas = new OffscreenCanvas(100, 50); |
| var ctx = offscreenCanvas.getContext('2d'); |
| |
| var imgdata = ctx.getImageData(0, 0, 10, 10); |
| imgdata.data[0] = 0.499; |
| _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); |
| imgdata.data[0] = 0.5; |
| _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); |
| imgdata.data[0] = 0.501; |
| _assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1"); |
| imgdata.data[0] = 1.499; |
| _assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1"); |
| imgdata.data[0] = 1.5; |
| _assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2"); |
| imgdata.data[0] = 1.501; |
| _assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2"); |
| imgdata.data[0] = 2.5; |
| _assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2"); |
| imgdata.data[0] = 3.5; |
| _assertSame(imgdata.data[0], 4, "imgdata.data[\""+(0)+"\"]", "4"); |
| imgdata.data[0] = 252.5; |
| _assertSame(imgdata.data[0], 252, "imgdata.data[\""+(0)+"\"]", "252"); |
| imgdata.data[0] = 253.5; |
| _assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254"); |
| imgdata.data[0] = 254.5; |
| _assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254"); |
| imgdata.data[0] = 256.5; |
| _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); |
| imgdata.data[0] = -0.5; |
| _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); |
| imgdata.data[0] = -1.5; |
| _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); |
| |
| t.done(); |
| |
| }); |
| done(); |