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Fix Audio Driver (Emscripten)

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Fix sound crack in Fierfox, fix core frozen when load rom
This commit is contained in:
dalter 2016-08-02 20:53:23 +03:00 committed by GitHub
parent fb2b53e589
commit 0026a5d08e
1 changed files with 15 additions and 32 deletions
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47
emscripten/library_rwebaudio.js
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@ -1,9 +1,9 @@
"use strict";
//"use strict";
var LibraryRWebAudio = {
$RA__deps: ['$Browser', 'usleep'],
$RA: {
BUFFER_SIZE: 256,
BUFFER_SIZE: 2048,
context: null,
buffers: [],
@ -11,33 +11,19 @@ var LibraryRWebAudio = {
bufIndex: 0,
bufOffset: 0,
startTime: 0,
performance: null,
nonblock: false,
performanceSupported: false,
currentTimeWorkaround: false,
setStartTime: function() {
RA.performance = window['performance'] || window['webkitPerformance'] || window['msPerformance'] || window['mozPerformance'];
if (RA.performance) {
RA.performanceSupported = true;
} else {
RA.performanceSupported = false;
}
if (RA.context.currentTime) {
var now = RA.performanceSupported ? RA.performance.now() : Date.now();
RA.startTime = now - RA.context.currentTime * 1000;
Module["resumeMainLoop"];
} else {
window.setTimeout(RA.setStartTime, 0);
}
RA.startTime = window['performance']['now']() - RA.context.currentTime * 1000;
Module["resumeMainLoop"]();
} else window['setTimeout'](RA.setStartTime, 0);
},
getCurrentPerfTime: function() {
if (true === RA.performanceSupported) {
return (RA.performance.now() - RA.startTime) / 1000;
} else {
return (Date.now() - RA.startTime) / 1000;
}
if (RA.startTime) return (window['performance']['now']() - RA.startTime) / 1000;
else throw 'getCurrentPerfTime() called before start time set';
},
process: function(queueBuffers) {
@ -92,14 +78,11 @@ var LibraryRWebAudio = {
},
RWebAudioInit: function(latency) {
Module.pauseMainLoop();
if (!RA.context) {
var ac = window['AudioContext'] || window['webkitAudioContext'];
if (!ac) {
return 0;
}
RA.context = new ac();
}
var ac = window['AudioContext'] || window['webkitAudioContext'];
if (!ac) return 0;
RA.context = new ac();
RA.numBuffers = ((latency * RA.context.sampleRate) / (1000 * RA.BUFFER_SIZE))|0;
if (RA.numBuffers < 2) RA.numBuffers = 2;
@ -110,8 +93,8 @@ var LibraryRWebAudio = {
RA.startTime = 0;
// chrome hack to get currentTime running
RA.context.createGain();
RA.setStartTime();
window['setTimeout'](RA.setStartTime, 0);
Module["pauseMainLoop"]();
return 1;
},