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| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <body> | |
| 4 <canvas id='output1' width = '100' height = '100'></canvas> | |
| 5 <canvas id='output2' width = '100' height = '100'></canvas> | |
| 6 <script> | |
| 7 if (window.testRunner) { | |
| 8 testRunner.waitUntilDone(); | |
| 9 } | |
| 10 | |
| 11 var width = 100; | |
| 12 var height = 100; | |
| 13 var aCanvas = new OffscreenCanvas(width, height); | |
| 14 var gl = aCanvas.getContext('webgl'); | |
| 15 gl.clearColor(1.0, 0.0, 0.0, 1.0); | |
| 16 gl.clear(gl.COLOR_BUFFER_BIT); | |
| 17 var image1 = aCanvas.transferToImageBitmap(); | |
| 18 gl.clearColor(0.0, 0.0, 1.0, 1.0); | |
| 19 gl.clear(gl.COLOR_BUFFER_BIT); | |
| 20 var image2 = aCanvas.transferToImageBitmap(); | |
| 21 | |
| 22 var canvas1 = document.getElementById("output1"); | |
| 23 var ctx1 = canvas1.getContext('bitmaprenderer'); | |
| 24 ctx1.transferFromImageBitmap(image1); | |
| 25 | |
| 26 var canvas2 = document.getElementById('output2'); | |
| 27 var ctx2 = canvas2.getContext('bitmaprenderer'); | |
| 28 ctx2.transferFromImageBitmap(image2); | |
| 29 | |
| 30 if (window.testRunner) { | |
| 31 testRunner.notifyDone(); | |
| 32 } | |
| 33 </script> | |
| 34 </body> | |
| 35 </html> | |
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