content/canvas/test/reftest/webgl-utils.js@6474c204b198 (annotated)
content/canvas/test/reftest/webgl-utils.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | "use strict"; |
| michael@0 | 2 | |
| michael@0 | 3 | function parseArgs() { |
| michael@0 | 4 | var query = window.location.search.substring(1); |
| michael@0 | 5 | |
| michael@0 | 6 | var split = query.split("&"); |
| michael@0 | 7 | |
| michael@0 | 8 | var args = {} |
| michael@0 | 9 | for (var i = 0; i < split.length; i++) { |
| michael@0 | 10 | var pair = split[i].split("="); |
| michael@0 | 11 | |
| michael@0 | 12 | var key = pair[0]; |
| michael@0 | 13 | var value = true; |
| michael@0 | 14 | if (pair.length >= 2) { |
| michael@0 | 15 | eval("value = " + decodeURIComponent(pair[1]) + ";"); |
| michael@0 | 16 | } |
| michael@0 | 17 | |
| michael@0 | 18 | args[key] = value; |
| michael@0 | 19 | } |
| michael@0 | 20 | |
| michael@0 | 21 | return args; |
| michael@0 | 22 | } |
| michael@0 | 23 | |
| michael@0 | 24 | var gArgs = null; |
| michael@0 | 25 | function arg(key) { |
| michael@0 | 26 | if (gArgs === null) { |
| michael@0 | 27 | gArgs = parseArgs(); |
| michael@0 | 28 | } |
| michael@0 | 29 | |
| michael@0 | 30 | var ret = gArgs[key]; |
| michael@0 | 31 | if (ret === undefined) |
| michael@0 | 32 | ret = false; |
| michael@0 | 33 | |
| michael@0 | 34 | return ret; |
| michael@0 | 35 | } |
| michael@0 | 36 | |
| michael@0 | 37 | function initGL(canvas) { |
| michael@0 | 38 | if (arg("nogl")) |
| michael@0 | 39 | return null; |
| michael@0 | 40 | |
| michael@0 | 41 | var gl = null; |
| michael@0 | 42 | |
| michael@0 | 43 | var withAA = arg("aa"); |
| michael@0 | 44 | var withAlpha = arg("alpha"); |
| michael@0 | 45 | var withDepth = arg("depth"); |
| michael@0 | 46 | var withPremult = arg("premult"); |
| michael@0 | 47 | var withPreserve = arg("preserve"); |
| michael@0 | 48 | var withStencil = arg("stencil"); |
| michael@0 | 49 | |
| michael@0 | 50 | try { |
| michael@0 | 51 | var argDict = { |
| michael@0 | 52 | alpha: withAlpha, |
| michael@0 | 53 | depth: withDepth, |
| michael@0 | 54 | stencil: withStencil, |
| michael@0 | 55 | antialias: withAA, |
| michael@0 | 56 | premultipliedAlpha: withPremult, |
| michael@0 | 57 | preserveDrawingBuffer: withPreserve, |
| michael@0 | 58 | }; |
| michael@0 | 59 | gl = canvas.getContext("experimental-webgl", argDict); |
| michael@0 | 60 | } catch(e) {} |
| michael@0 | 61 | |
| michael@0 | 62 | return gl; |
| michael@0 | 63 | } |
| michael@0 | 64 | |
| michael@0 | 65 | function rAF(func) { |
| michael@0 | 66 | var raf = window.requestAnimationFrame || window.mozRequestAnimationFrame; |
| michael@0 | 67 | raf(func); |
| michael@0 | 68 | } |
| michael@0 | 69 | |
| michael@0 | 70 | var MAX_WAIT_FOR_COMPOSITE_DELAY_MS = 500; |
| michael@0 | 71 | |
| michael@0 | 72 | function waitForComposite(func) { |
| michael@0 | 73 | var isDone = false; |
| michael@0 | 74 | var doneFunc = function () { |
| michael@0 | 75 | if (isDone) |
| michael@0 | 76 | return; |
| michael@0 | 77 | isDone = true; |
| michael@0 | 78 | func(); |
| michael@0 | 79 | }; |
| michael@0 | 80 | |
| michael@0 | 81 | rAF(doneFunc); |
| michael@0 | 82 | setTimeout(doneFunc, MAX_WAIT_FOR_COMPOSITE_DELAY_MS); |
| michael@0 | 83 | } |
