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Issue 263523002: Added test to ensure context restoration due to GC doesn't crash (Take 2) (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebase Created 6 years, 7 months ago
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1 <html> 1 <html>
2 <head> 2 <head>
3 <script type="text/javascript"> 3 <script type="text/javascript">
4 var canvas; 4 var canvas;
5 var w, h; 5 var w, h;
6 var gl; 6 var gl;
7 var extension; 7 var extension;
8 8
9 var alreadySetAutomationId = false; 9 var alreadySetAutomationId = false;
10 10
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after
52 gl.readPixels(0, 0, w, h, gl.RGBA, gl.UNSIGNED_BYTE, a); 52 gl.readPixels(0, 0, w, h, gl.RGBA, gl.UNSIGNED_BYTE, a);
53 53
54 if (!alreadySetAutomationId) 54 if (!alreadySetAutomationId)
55 window.domAutomationController.setAutomationId(1); 55 window.domAutomationController.setAutomationId(1);
56 if (a[0] == 0 && a[1] == 0 && a[2] == 255) 56 if (a[0] == 0 && a[1] == 0 && a[2] == 255)
57 window.domAutomationController.send("SUCCESS"); 57 window.domAutomationController.send("SUCCESS");
58 else 58 else
59 window.domAutomationController.send("FAILED"); 59 window.domAutomationController.send("FAILED");
60 } 60 }
61 61
62 function testQuantityLoss() {
63 var count = 0;
64 var iterations = 128;
65 var garbageCanvases = [];
66
67 function createAndDiscardContext() {
68 count++;
69
70 var c = document.createElement("canvas");
71 c.width = 1;
72 c.height = 1;
73 garbageCanvases.push(c);
74
75 var ctx = c.getContext("experimental-webgl");
76 if (!ctx) {
77 return false;
78 }
79 ctx.clear(gl.COLOR_BUFFER_BIT);
80
81 if (count < iterations) {
82 window.requestAnimationFrame(createAndDiscardContext);
83 } else {
84 // Remove the references to the garbage canvases, then attempt to trigger
85 // a garbage collect.
86 garbageCanvases = null;
87
88 window.domAutomationController.setAutomationId(1);
89 alreadySetAutomationId = true;
90 window.domAutomationController.send("LOADED");
91
92 // Trying to provoke garbage collection through excessive allocations.
93 setInterval(function() {
94 var garbageArray = new Uint8Array(1024 * 1024);
95 garbageArray[0] = 255;
96 }, 10);
97 }
98 };
99
100 createAndDiscardContext();
101 }
102
62 function contextLostTest(kind) 103 function contextLostTest(kind)
63 { 104 {
64 switch (kind) { 105 switch (kind) {
65 case "WEBGL_lose_context": { 106 case "WEBGL_lose_context": {
66 extension = gl.getExtension("WEBKIT_WEBGL_lose_context") || 107 extension = gl.getExtension("WEBKIT_WEBGL_lose_context") ||
67 gl.getExtension("WEBGL_lose_context"); 108 gl.getExtension("WEBGL_lose_context");
68 extension.loseContext(); 109 extension.loseContext();
69 break; 110 break;
70 } 111 }
71 case "kill": 112 case "kill":
72 // nothing -- the browser test navigates to about:gpucrash and kills 113 // nothing -- the browser test navigates to about:gpucrash and kills
73 // the GPU process. 114 // the GPU process.
74 break; 115 break;
75 case "kill_after_notification": 116 case "kill_after_notification":
76 // The browser test waits for notification from the page that it 117 // The browser test waits for notification from the page that it
77 // has been loaded before navigating to about:gpucrash. 118 // has been loaded before navigating to about:gpucrash.
78 window.domAutomationController.setAutomationId(1); 119 window.domAutomationController.setAutomationId(1);
79 alreadySetAutomationId = true; 120 alreadySetAutomationId = true;
80 window.domAutomationController.send("LOADED"); 121 window.domAutomationController.send("LOADED");
81 break; 122 break;
123 case "forced_quantity_loss":
124 // Test creates many new contexts, forcing the original context to be
125 // lost. Then a garbage collect is triggered and the original context is
126 // watched to ensure it restores properly.
127 testQuantityLoss();
128 break;
82 } 129 }
83 } 130 }
84 131
85 function onLoad() { 132 function onLoad() {
86 canvas = document.getElementById("canvas1"); 133 canvas = document.getElementById("canvas1");
87 w = canvas.width; 134 w = canvas.width;
88 h = canvas.height; 135 h = canvas.height;
89 if (!canvas) 136 if (!canvas)
90 return; 137 return;
91 canvas.addEventListener("webglcontextlost", testContextLost, false); 138 canvas.addEventListener("webglcontextlost", testContextLost, false);
(...skipping 10 matching lines...) Expand all
102 if (query) 149 if (query)
103 contextLostTest(query[1]); 150 contextLostTest(query[1]);
104 } 151 }
105 </script> 152 </script>
106 </head> 153 </head>
107 <body onload="onLoad()"> 154 <body onload="onLoad()">
108 <canvas id="canvas1" width="16px" height="32px"> 155 <canvas id="canvas1" width="16px" height="32px">
109 </canvas> 156 </canvas>
110 </body> 157 </body>
111 </html> 158 </html>
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