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Faster vSynch detection code

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ppeccin 2018-02-17 17:52:00 -02:00
parent 9643b28953
commit a0b320dda7
1 changed files with 11 additions and 10 deletions
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21
src/main/room/clock/Clock.js
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@ -114,30 +114,31 @@ jt.Clock = function(clockPulse) {
// Start detection
var tries = 0;
var samples = [];
// var samples = [];
var lastTime = 0;
var good60 = 0, good50 = 0, good120 = 0, good100 = 0;
var tolerance = 0.06;
var nativeFPSSampler = function() {
// Detected?
if (good60 >= 10 || good50 >= 10 || good120 >= 10 || good100 >= 10) {
vSynchNativeFrequency = good60 >= 10 ? 60 : good50 >= 10 ? 50 : good120 >= 10 ? 120 : 100;
if (good60 >= 13 || good50 >= 13 || good120 >= 13 || good100 >= 13) {
vSynchNativeFrequency = good60 >= 13 ? 60 : good50 >= 13 ? 50 : good120 >= 13 ? 120 : 100;
jt.Util.log("Video native frequency detected: " + vSynchNativeFrequency + "Hz");
if (callback) callback(vSynchNativeFrequency);
// console.log(samples);
return;
}
tries++;
if (tries <= 50) {
if (tries <= 60) {
var currentTime = jt.Util.performanceNow();
var sample = currentTime - lastTime;
samples[samples.length] = sample;
var sample = 1000 / (currentTime - lastTime);
// samples[samples.length] = sample;
lastTime = currentTime;
if ((sample >= (1000 / 60) * (1 - tolerance)) && (sample <= (1000 / 60) * (1 + tolerance))) good60++;
if ((sample >= (1000 / 50) * (1 - tolerance)) && (sample <= (1000 / 50) * (1 + tolerance))) good50++;
if ((sample >= (1000 / 120) * (1 - tolerance)) && (sample <= (1000 / 120) * (1 + tolerance))) good120++;
if ((sample >= (1000 / 100) * (1 - tolerance)) && (sample <= (1000 / 100) * (1 + tolerance))) good100++;
if (sample >= 47 && sample <= 53) good50++;
if (sample >= 56.4 && sample <= 63.6) good60++;
if (sample >= 112.8 && sample <= 127.2) good120++;
if (sample >= 94 && sample <= 106) good100++;
requestAnimationFrame(nativeFPSSampler);
} else {
vSynchNativeFrequency = -1;