| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <body> |
| <script> |
| // Ensure correct behavior of canvas with fillRect+shadow after translation+rotation+scaling. A blue and red checkered pattern should be displayed. |
| |
| var canvas = document.createElement('canvas'); |
| document.body.appendChild(canvas); |
| canvas.setAttribute('width', '600'); |
| canvas.setAttribute('height', '600'); |
| var ctx = canvas.getContext('2d'); |
| |
| ctx.fillStyle = 'rgba(0, 0, 255, 1.0)'; |
| ctx.shadowOffsetX = 100; |
| ctx.shadowOffsetY = 100; |
| |
| ctx.translate(-100, -100); |
| ctx.rotate(Math.PI/2); |
| ctx.scale(2, 2); |
| |
| ctx.shadowColor = 'rgba(255, 0, 0, 1.0)'; |
| ctx.fillRect(100, -150, 50, 50); |
| |
| ctx.shadowColor = 'rgba(255, 0, 0, 0.5)'; |
| ctx.fillRect(200, -150, 50, 50); |
| |
| ctx.shadowBlur = 5; |
| ctx.shadowColor = 'rgba(255, 0, 0, 1.0)'; |
| ctx.fillRect(100, -250, 50, 50); |
| |
| ctx.shadowColor = 'rgba(255, 0, 0, 0.5)'; |
| ctx.fillRect(200, -250, 50, 50); |
| |
| function testPixelShadowBlur(x, y, color) |
| { |
| if (color.length == 4) { |
| assert_array_equals(ctx.getImageData(x, y, 1, 1).data, color); |
| } else { // we expect to have [r, g, b, a, alphaTolerance] |
| var data = ctx.getImageData(x, y, 1, 1).data; |
| assert_array_equals(data.slice(0,3), color.slice(0,3)); |
| assert_approx_equals(data[3], color[3], color[4]); |
| } |
| } |
| |
| var alphaTolerance = 20; |
| var testPixelShadowScenarios = [ |
| ['Verify solid shadow 1', 201, 205, [255, 0, 0, 255]], |
| ['Verify solid shadow 2', 298, 298, [255, 0, 0, 255]], |
| ['Verify solid shadow 3', 201, 298, [255, 0, 0, 255]], |
| |
| ['Verify solid alpha shadow 1', 201, 401, [255, 0, 0, 127, alphaTolerance]], |
| ['Verify solid alpha shadow 2', 298, 450, [255, 0, 0, 127, alphaTolerance]], |
| ['Verify solid alpha shadow 3', 205, 498, [255, 0, 0, 127, alphaTolerance]], |
| |
| ['Verify blurry shadow 1', 399, 205, [255, 0, 0, 106, alphaTolerance]], |
| ['Verify blurry shadow 2', 500, 205, [255, 0, 0, 106, alphaTolerance]], |
| ['Verify blurry shadow 3', 499, 299, [255, 0, 0, 85, alphaTolerance]], |
| |
| ['Verify blurry alpha shadow 1', 398, 405, [255, 0, 0, 36, alphaTolerance]], |
| ['Verify blurry alpha shadow 2', 405, 501, [255, 0, 0, 36, alphaTolerance]], |
| ['Verify blurry alpha shadow 3', 405, 501, [255, 0, 0, 36, alphaTolerance]], |
| ]; |
| |
| generate_tests(testPixelShadowBlur, testPixelShadowScenarios); |
| |
| </script> |
| </body> |
