| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.line.width.transformed</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/html/canvas/resources/canvas-tests.js"></script> |
| |
| <h1>2d.line.width.transformed</h1> |
| <p class="desc">Line stroke widths are affected by scale transformations</p> |
| |
| |
| <script> |
| var t = async_test("Line stroke widths are affected by scale transformations"); |
| 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 = '#0f0'; |
| ctx.fillRect(0, 0, 100, 50); |
| ctx.lineWidth = 4; |
| // Draw a green line over a red box, to check the line is not too small |
| ctx.fillStyle = '#f00'; |
| ctx.strokeStyle = '#0f0'; |
| ctx.fillRect(15, 15, 20, 20); |
| ctx.save(); |
| ctx.scale(5, 1); |
| ctx.beginPath(); |
| ctx.moveTo(5, 15); |
| ctx.lineTo(5, 35); |
| ctx.stroke(); |
| ctx.restore(); |
| // Draw a green box over a red line, to check the line is not too large |
| ctx.fillStyle = '#0f0'; |
| ctx.strokeStyle = '#f00'; |
| ctx.save(); |
| ctx.scale(-5, 1); |
| ctx.beginPath(); |
| ctx.moveTo(-15, 15); |
| ctx.lineTo(-15, 35); |
| ctx.stroke(); |
| ctx.restore(); |
| ctx.fillRect(65, 15, 20, 20); |
| _assertPixel(offscreenCanvas, 14,25, 0,255,0,255, "14,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 15,25, 0,255,0,255, "15,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 16,25, 0,255,0,255, "16,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 25,25, 0,255,0,255, "25,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 34,25, 0,255,0,255, "34,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 35,25, 0,255,0,255, "35,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 36,25, 0,255,0,255, "36,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 64,25, 0,255,0,255, "64,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 65,25, 0,255,0,255, "65,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 66,25, 0,255,0,255, "66,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 75,25, 0,255,0,255, "75,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 84,25, 0,255,0,255, "84,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 85,25, 0,255,0,255, "85,25", "0,255,0,255"); |
| _assertPixel(offscreenCanvas, 86,25, 0,255,0,255, "86,25", "0,255,0,255"); |
| t.done(); |
| |
| }); |
| </script> |
