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comparison: content/canvas/test/reftest/webgl-utils.js
content/canvas/test/reftest/webgl-utils.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:d248f70652ed |
|---|---|
| 1 "use strict"; | |
| 2 | |
| 3 function parseArgs() { | |
| 4 var query = window.location.search.substring(1); | |
| 5 | |
| 6 var split = query.split("&"); | |
| 7 | |
| 8 var args = {} | |
| 9 for (var i = 0; i < split.length; i++) { | |
| 10 var pair = split[i].split("="); | |
| 11 | |
| 12 var key = pair[0]; | |
| 13 var value = true; | |
| 14 if (pair.length >= 2) { | |
| 15 eval("value = " + decodeURIComponent(pair[1]) + ";"); | |
| 16 } | |
| 17 | |
| 18 args[key] = value; | |
| 19 } | |
| 20 | |
| 21 return args; | |
| 22 } | |
| 23 | |
| 24 var gArgs = null; | |
| 25 function arg(key) { | |
| 26 if (gArgs === null) { | |
| 27 gArgs = parseArgs(); | |
| 28 } | |
| 29 | |
| 30 var ret = gArgs[key]; | |
| 31 if (ret === undefined) | |
| 32 ret = false; | |
| 33 | |
| 34 return ret; | |
| 35 } | |
| 36 | |
| 37 function initGL(canvas) { | |
| 38 if (arg("nogl")) | |
| 39 return null; | |
| 40 | |
| 41 var gl = null; | |
| 42 | |
| 43 var withAA = arg("aa"); | |
| 44 var withAlpha = arg("alpha"); | |
| 45 var withDepth = arg("depth"); | |
| 46 var withPremult = arg("premult"); | |
| 47 var withPreserve = arg("preserve"); | |
| 48 var withStencil = arg("stencil"); | |
| 49 | |
| 50 try { | |
| 51 var argDict = { | |
| 52 alpha: withAlpha, | |
| 53 depth: withDepth, | |
| 54 stencil: withStencil, | |
| 55 antialias: withAA, | |
| 56 premultipliedAlpha: withPremult, | |
| 57 preserveDrawingBuffer: withPreserve, | |
| 58 }; | |
| 59 gl = canvas.getContext("experimental-webgl", argDict); | |
| 60 } catch(e) {} | |
| 61 | |
| 62 return gl; | |
| 63 } | |
| 64 | |
| 65 function rAF(func) { | |
| 66 var raf = window.requestAnimationFrame || window.mozRequestAnimationFrame; | |
| 67 raf(func); | |
| 68 } | |
| 69 | |
| 70 var MAX_WAIT_FOR_COMPOSITE_DELAY_MS = 500; | |
| 71 | |
| 72 function waitForComposite(func) { | |
| 73 var isDone = false; | |
| 74 var doneFunc = function () { | |
| 75 if (isDone) | |
| 76 return; | |
| 77 isDone = true; | |
| 78 func(); | |
| 79 }; | |
| 80 | |
| 81 rAF(doneFunc); | |
| 82 setTimeout(doneFunc, MAX_WAIT_FOR_COMPOSITE_DELAY_MS); | |
| 83 } |
