| OLD | NEW |
| 1 <!DOCTYPE HTML> | 1 <!DOCTYPE HTML> |
| 2 | 2 |
| 3 <!-- READ BEFORE UPDATING: | 3 <!-- READ BEFORE UPDATING: |
| 4 If this test is updated make sure to increment the "revision" value of the | 4 If this test is updated make sure to increment the "revision" value of the |
| 5 associated test in content/test/gpu/page_sets/pixel_tests.py. This will ensure | 5 associated test in content/test/gpu/page_sets/pixel_tests.py. This will ensure |
| 6 that the baseline images are regenerated on the next run. | 6 that the baseline images are regenerated on the next run. |
| 7 --> | 7 --> |
| 8 | 8 |
| 9 <html> | 9 <html> |
| 10 <head> | 10 <head> |
| 11 <title>OffscreenCanvas commit flow on main thread: green square on white backgro
und.</title> | 11 <title>OffscreenCanvas commit flow on worker thread: red square on white backgro
und.</title> |
| 12 <style type="text/css"> | 12 <style type="text/css"> |
| 13 .nomargin { | 13 .nomargin { |
| 14 margin: 0px auto; | 14 margin: 0px auto; |
| 15 } | 15 } |
| 16 </style> | 16 </style> |
| 17 <script id="myWorker" type="text/worker"> |
| 18 self.onmessage = function(e) { |
| 19 var transferredOffscreenCanvas = e.data; |
| 20 var gl = transferredOffscreenCanvas.getContext("webgl"); |
| 21 gl.clearColor(1.0, 0.0, 0.0, 1.0); |
| 22 gl.clear(gl.COLOR_BUFFER_BIT); |
| 23 gl.commit(); |
| 24 }; |
| 25 </script> |
| 17 <script> | 26 <script> |
| 18 var g_swapsBeforeAck = 15; | 27 var g_swapsBeforeAck = 15; |
| 19 | 28 |
| 29 function makeWorker(script) { |
| 30 var blob = new Blob([script]); |
| 31 return new Worker(URL.createObjectURL(blob)); |
| 32 } |
| 33 |
| 20 function main() | 34 function main() |
| 21 { | 35 { |
| 22 draw(); | 36 draw(); |
| 23 waitForFinish(); | 37 waitForFinish(); |
| 24 } | 38 } |
| 25 | 39 |
| 26 function draw() | 40 function draw() |
| 27 { | 41 { |
| 28 var canvas = document.getElementById("c"); | 42 var canvas = document.getElementById("c"); |
| 29 var offscreenCanvas = canvas.transferControlToOffscreen(); | 43 var offscreenCanvas = canvas.transferControlToOffscreen(); |
| 30 var gl = offscreenCanvas.getContext("webgl"); | 44 var worker = makeWorker(document.getElementById("myWorker").textContent); |
| 31 gl.clearColor(0.0, 1.0, 0.0, 1.0); | 45 worker.postMessage(offscreenCanvas, [offscreenCanvas]); |
| 32 gl.clear(gl.COLOR_BUFFER_BIT); | |
| 33 gl.commit(); | |
| 34 } | 46 } |
| 35 | 47 |
| 36 function waitForFinish() | 48 function waitForFinish() |
| 37 { | 49 { |
| 38 if (g_swapsBeforeAck == 0) { | 50 if (g_swapsBeforeAck == 0) { |
| 39 domAutomationController.setAutomationId(1); | 51 domAutomationController.setAutomationId(1); |
| 40 domAutomationController.send("SUCCESS"); | 52 domAutomationController.send("SUCCESS"); |
| 41 } else { | 53 } else { |
| 42 g_swapsBeforeAck--; | 54 g_swapsBeforeAck--; |
| 43 document.getElementById('container').style.zIndex = g_swapsBeforeAck + 1; | 55 document.getElementById('container').style.zIndex = g_swapsBeforeAck + 1; |
| 44 window.webkitRequestAnimationFrame(waitForFinish); | 56 window.webkitRequestAnimationFrame(waitForFinish); |
| 45 } | 57 } |
| 46 } | 58 } |
| 47 </script> | 59 </script> |
| 48 </head> | 60 </head> |
| 49 <body onload="main()"> | 61 <body onload="main()"> |
| 50 <div style="position:relative; width:200px; height:200px; background-color:white
"> | 62 <div style="position:relative; width:200px; height:200px; background-color:white
"> |
| 51 </div> | 63 </div> |
| 52 <div id="container" style="position:absolute; top:0px; left:0px"> | 64 <div id="container" style="position:absolute; top:0px; left:0px"> |
| 53 <canvas id="c" width="200" height="200" class="nomargin"></canvas> | 65 <canvas id="c" width="200" height="200" class="nomargin"></canvas> |
| 54 </div> | 66 </div> |
| 55 </body> | 67 </body> |
| 56 </html> | 68 </html> |
| OLD | NEW |