| // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.imageData.get.rounding |
| // Description:Test the handling of non-integer source coordinates in getImageData(). |
| // Note: |
| |
| importScripts("/resources/testharness.js"); |
| importScripts("/html/canvas/resources/canvas-tests.js"); |
| |
| var t = async_test("Test the handling of non-integer source coordinates in getImageData()."); |
| var t_pass = t.done.bind(t); |
| var t_fail = t.step_func(function(reason) { |
| throw reason; |
| }); |
| t.step(function() { |
| |
| var canvas = new OffscreenCanvas(100, 50); |
| var ctx = canvas.getContext('2d'); |
| |
| function testDimensions(sx, sy, sw, sh, width, height) |
| { |
| imageData = ctx.getImageData(sx, sy, sw, sh); |
| _assert(imageData.width == width, "imageData.width == width"); |
| _assert(imageData.height == height, "imageData.height == height"); |
| } |
| |
| testDimensions(0, 0, 20, 10, 20, 10); |
| |
| testDimensions(.1, .2, 20, 10, 20, 10); |
| testDimensions(.9, .8, 20, 10, 20, 10); |
| |
| testDimensions(0, 0, 20.9, 10.9, 20, 10); |
| testDimensions(0, 0, 20.1, 10.1, 20, 10); |
| |
| testDimensions(-1, -1, 20, 10, 20, 10); |
| |
| testDimensions(-1.1, 0, 20, 10, 20, 10); |
| testDimensions(-1.9, 0, 20, 10, 20, 10); |
| t.done(); |
| }); |
| done(); |