Chromium Code Reviews Chromium Code Reviews
Issue 251023004:
WebGL: Free temporary GPU resources held by inactive or hidden WebGL. (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master| OLD | NEW |
|---|---|
| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <body onload="runRepaintTest()"> | 2 <body onload="runRepaintTest()"> |
| 3 <span id="description" style="color: white"> | 3 <span id="description" style="color: white"> |
| 4 This test is only useful as a pixel test. You should see two rows with 4 canvase s in each. The top row of canvases should have a black background, the bottom ro w should have a dark blue background. | 4 This test is only useful as a pixel test. You should see two rows with 4 canvase s in each. The top row of canvases should have a black background, the bottom ro w should have a dark blue background. |
| 5 The canvases in the first two rows should have a single triangle. The canvases o n the left should have two triangles superimposed on top of each other. | 5 The canvases in the first two rows should have a single triangle. The canvases o n the left should have three triangles superimposed on top of each other. |
| 6 If multisampling is supported, the odd columns should have smooth edges instead of jagged stair-stepping. | 6 If multisampling is supported, the odd columns should have smooth edges instead of jagged stair-stepping. |
| 7 </span> | 7 </span> |
| 8 <br> | 8 <br> |
| 9 <style> | 9 <style> |
| 10 canvas { | 10 canvas { |
| 11 outline: 1px solid blue; | 11 outline: 1px solid blue; |
| 12 } | 12 } |
| 13 body { | 13 body { |
| 14 background-color: darkblue; | 14 background-color: darkblue; |
| 15 } | 15 } |
| (...skipping 90 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
| 106 | 106 |
| 107 // draw | 107 // draw |
| 108 gl.drawArrays(gl.TRIANGLES, 0, 3); | 108 gl.drawArrays(gl.TRIANGLES, 0, 3); |
| 109 } | 109 } |
| 110 | 110 |
| 111 function drawAll(offset) { | 111 function drawAll(offset) { |
| 112 for (var i=0; i<8; ++i) | 112 for (var i=0; i<8; ++i) |
| 113 draw(ctxs[i], offset); | 113 draw(ctxs[i], offset); |
| 114 } | 114 } |
| 115 | 115 |
| 116 drawAll(0); | 116 function repaintOnVisiblePage() { |
| 117 | 117 // Check if WebGL draws this frame correctly, because WebGL implementation |
| 118 function repaintTest() { | 118 // clears temporary cache when page is hidden. |
| 119 drawAll(50); | 119 drawAll(60); |
| 120 if (window.testRunner) { | 120 if (window.testRunner) { |
| 121 testRunner.notifyDone(); | 121 testRunner.notifyDone(); |
| 122 } | 122 } |
| 123 } | 123 } |
| 124 | 124 |
| 125 function SetPageVisible() { | |
|
Ken Russell (switch to Gerrit)
2014/07/08 23:18:24
Please use consistent capitalization: setPageVisib
| |
| 126 if (window.testRunner) { | |
| 127 testRunner.setPageVisibility("visible"); | |
| 128 testRunner.displayAsyncThen(repaintOnVisiblePage); | |
| 129 } else { | |
| 130 setTimeout(repaintOnVisiblePage, 50); | |
| 131 } | |
| 132 } | |
| 133 | |
| 134 function repaintOnHiddenPage() { | |
| 135 if (window.testRunner) { | |
| 136 testRunner.setPageVisibility("hidden"); | |
| 137 } | |
| 138 // Although page is hidden, WebGL must draw this frame. | |
| 139 drawAll(30); | |
| 140 // testRunner.displayAsyncThen doesn't work when page is hidden. | |
| 141 setTimeout(SetPageVisible, 50); | |
| 142 } | |
| 143 | |
| 125 function runRepaintTest() { | 144 function runRepaintTest() { |
| 145 drawAll(0); | |
| 126 if (window.testRunner) { | 146 if (window.testRunner) { |
| 127 testRunner.waitUntilDone(); | 147 testRunner.waitUntilDone(); |
| 128 testRunner.displayAsyncThen(repaintTest); | 148 testRunner.displayAsyncThen(repaintOnHiddenPage); |
| 129 } else { | 149 } else { |
| 130 setTimeout(repaintTest, 100); | 150 setTimeout(repaintOnHiddenPage, 50); |
| 131 } | 151 } |
| 132 } | 152 } |
| 133 </script> | 153 </script> |
| OLD | NEW |
