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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <script src="../../../resources/testharness.js"></script> | 2 <script src="../../../resources/testharness.js"></script> |
| 3 <script src="../../../resources/testharnessreport.js"></script> | 3 <script src="../../../resources/testharnessreport.js"></script> |
| 4 <script> | 4 <script> |
| 5 | 5 |
| 6 function testCanvas_0f0(ctx) { | 6 function testCanvas_0f0(ctx) { |
| 7 var colorData = ctx.getImageData(50, 50, 1, 1).data; | 7 var colorData = ctx.getImageData(50, 50, 1, 1).data; |
| 8 assert_equals(colorData[0], 0); | 8 assert_equals(colorData[0], 0); |
| 9 assert_equals(colorData[1], 255); | 9 assert_equals(colorData[1], 255); |
| 10 assert_equals(colorData[2], 0); | 10 assert_equals(colorData[2], 0); |
| 11 assert_equals(colorData[3], 255); | 11 assert_equals(colorData[3], 255); |
| 12 } | 12 } |
| 13 | 13 |
| 14 function testDrawCanvasWithImageBitamp(image) { | 14 function testDrawCanvasWithImageBitamp(image) { |
| 15 var dstCanvas = document.createElement('canvas'); | 15 var dstCanvas = document.createElement('canvas'); |
| 16 dstCanvas.width = dstCanvas.height = 100; | 16 dstCanvas.width = dstCanvas.height = 100; |
| 17 var dstCtx = dstCanvas.getContext('bitmaprenderer'); | 17 var dstCtx = dstCanvas.getContext('bitmaprenderer'); |
| 18 assert_true(dstCtx instanceof ImageBitmapRenderingContext); |
| 18 dstCtx.transferFromImageBitmap(image); | 19 dstCtx.transferFromImageBitmap(image); |
| 19 | 20 |
| 21 // Calling dstCtx.canvas should get the same canvas as the dstCanvas |
| 22 var testCanvas = dstCtx.canvas; |
| 23 assert_equals(dstCanvas.width, testCanvas.width); |
| 24 assert_equals(dstCanvas.height, testCanvas.height); |
| 25 |
| 26 // After transferFromImageBitmap, image's width && height should be 0 |
| 27 assert_equals(image.width, 0); |
| 28 assert_equals(image.height, 0); |
| 29 |
| 20 var myCanvas = document.createElement('canvas'); | 30 var myCanvas = document.createElement('canvas'); |
| 21 myCanvas.width = myCanvas.height = 100; | 31 myCanvas.width = myCanvas.height = 100; |
| 22 var myCtx = myCanvas.getContext('2d'); | 32 var myCtx = myCanvas.getContext('2d'); |
| 23 myCtx.drawImage(dstCanvas, 10, 10); | 33 myCtx.drawImage(dstCanvas, 10, 10); |
| 24 testCanvas_0f0(myCtx); | 34 testCanvas_0f0(myCtx); |
| 25 } | 35 } |
| 26 | 36 |
| 27 promise_test(function() { | 37 promise_test(function() { |
| 28 var canvas = document.createElement('canvas'); | 38 var canvas = document.createElement('canvas'); |
| 29 canvas.width = canvas.height = 100; | 39 canvas.width = canvas.height = 100; |
| 30 var ctx = canvas.getContext('2d'); | 40 var ctx = canvas.getContext('2d'); |
| 31 ctx.fillStyle = '#0f0'; | 41 ctx.fillStyle = '#0f0'; |
| 32 ctx.fillRect(0, 0, 100, 100); | 42 ctx.fillRect(0, 0, 100, 100); |
| 33 testCanvas_0f0(ctx); | 43 testCanvas_0f0(ctx); |
| 34 | 44 |
| 35 return createImageBitmap(canvas).then(testDrawCanvasWithImageBitamp); | 45 return createImageBitmap(canvas).then(testDrawCanvasWithImageBitamp); |
| 36 }, 'testDrawCanvasWithImageBitamp should not return any error'); | 46 }, 'testDrawCanvasWithImageBitamp should not return any error'); |
| 37 | 47 |
| 38 </script> | 48 </script> |
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Chromium Code Reviews
Issue 2459233002:
Consolidate implementation of ImageBitmapRenderingContext (Closed)
