diff options
| -rw-r--r-- | src/library_browser.js | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/src/library_browser.js b/src/library_browser.js index b3e0a048..fff9387e 100644 --- a/src/library_browser.js +++ b/src/library_browser.js @@ -466,9 +466,25 @@ mergeInto(LibraryManager.library, { canvasContainer.requestFullScreen(); }, + nextRAF: 0, + + fakeRequestAnimationFrame: function(func) { + // try to keep 60fps between calls to here + var now = Date.now(); + if (Browser.nextRAF === 0) { + Browser.nextRAF = now + 1000/60; + } else { + while (now + 2 >= Browser.nextRAF) { // fudge a little, to avoid timer jitter causing us to do lots of delay:0 + Browser.nextRAF += 1000/60; + } + } + var delay = Math.max(Browser.nextRAF - now, 0); + setTimeout(func, delay); + }, + requestAnimationFrame: function requestAnimationFrame(func) { if (typeof window === 'undefined') { // Provide fallback to setTimeout if window is undefined (e.g. in Node.js) - setTimeout(func, 1000/60); + Browser.fakeRequestAnimationFrame(func); } else { if (!window.requestAnimationFrame) { window.requestAnimationFrame = window['requestAnimationFrame'] || @@ -476,7 +492,7 @@ mergeInto(LibraryManager.library, { window['webkitRequestAnimationFrame'] || window['msRequestAnimationFrame'] || window['oRequestAnimationFrame'] || - function(func) { setTimeout(func, 1000/60) }; + Browser.fakeRequestAnimationFrame; } window.requestAnimationFrame(func); } |