| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <body> |
| <script> |
| // Ensure correct behavior of canvas with path stroke shadow. |
| |
| var canvas = document.createElement('canvas'); |
| document.body.appendChild(canvas); |
| canvas.setAttribute('width', '700'); |
| canvas.setAttribute('height', '700'); |
| var ctx = canvas.getContext('2d'); |
| |
| ctx.beginPath(); |
| ctx.moveTo(300, 300); |
| ctx.lineTo(300, 50); |
| ctx.bezierCurveTo(200, 40, 75, 150, 30, 30); |
| ctx.quadraticCurveTo(250, 75, 50, 300); |
| ctx.shadowOffsetX = 350; |
| ctx.shadowColor = 'rgba(255, 20, 0, 0.5)'; |
| ctx.shadowBlur = 0; |
| ctx.strokeStyle = 'rgba(0, 0, 255, 1)'; |
| ctx.lineWidth = 30; |
| ctx.closePath(); |
| ctx.stroke(); |
| |
| ctx.beginPath(); |
| ctx.moveTo(300,650); |
| ctx.lineTo(300,400); |
| ctx.bezierCurveTo(200, 390, 75, 500, 30, 380); |
| ctx.quadraticCurveTo(250, 425, 50, 650); |
| ctx.shadowOffsetX = 350; |
| ctx.shadowColor = 'rgba(255, 0, 0, 0.5)'; |
| ctx.shadowBlur = 30; |
| ctx.strokeStyle = 'rgba(0, 0, 255, 1)'; |
| ctx.lineWidth = 30; |
| ctx.closePath(); |
| ctx.stroke(); |
| |
| var colorTolerance = 2; |
| function checkPixelWithTolerance(x, y, rgbNOTa) { |
| data = ctx.getImageData(x, y, 1, 1).data; |
| for (i = 0; i < 3; i++) |
| assert_approx_equals(data[i], rgbNOTa[i], colorTolerance); |
| if(rgbNOTa.length == 4) |
| assert_not_equals(data[3], rgbNOTa[3]); |
| } |
| |
| var testScenarios = [ |
| ['Verify solid shadow 1', 650, 300, [255, 20, 0]], |
| ['Verify solid shadow 2', 650, 50, [255, 20, 0]], |
| ['Verify solid shadow 3', 380, 30, [255, 20, 0]], |
| ['Verify solid shadow 4', 400, 40, [255, 20, 0]], |
| |
| ['Verify blurry shadow 1', 640, 640, [255, 0, 0, 255]], |
| ['Verify blurry shadow 2', 650, 400, [255, 0, 0, 255]], |
| ['Verify blurry shadow 3', 380, 380, [255, 0, 0, 255]], |
| ['Verify blurry shadow 4', 350, 380, [255, 0, 0, 255]], |
| |
| ]; |
| |
| generate_tests(checkPixelWithTolerance, testScenarios); |
| |
| </script> |
| </body> |
