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High Performance Stats added #42

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High Performance Stats added #42

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3b49ad4
arbitrary width and height of stats via options object
ccoenen Mar 12, 2015
2152f4e
using precision timer, and limiting the output to precision .1
ccoenen Mar 12, 2015
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62 changes: 40 additions & 22 deletions src/Stats.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,62 +2,78 @@
* @author mrdoob / http://mrdoob.com/
*/

var Stats = function () {
var Stats = function (options) {
// Use high resolution timing API, if available
window.performance = window.performance || {};
performance.now = performance.now || function() { return new Date().getTime(); };

var startTime = Date.now(), prevTime = startTime;
options = options || {};

var barHeight = options.barHeight || 30;
var bars = options.bars || 74;

var startTime = performance.now(), prevTime = startTime;
var ms = 0, msMin = Infinity, msMax = 0;
var fps = 0, fpsMin = Infinity, fpsMax = 0;
var frames = 0, mode = 0;

var container = document.createElement( 'div' );
container.id = 'stats';
container.addEventListener( 'mousedown', function ( event ) { event.preventDefault(); setMode( ++ mode % 2 ) }, false );
container.style.cssText = 'width:80px;opacity:0.9;cursor:pointer';
container.addEventListener( 'mousedown', function ( event ) { event.preventDefault(); setMode( ++ mode % 2 ); }, false );
container.style.cssText = 'width:' + (bars + 6) + 'px;opacity:0.9;cursor:pointer;font-family:Consolas,Arial,monospace;font-size:9px;font-weight:bold;line-height:15px;text-align:left';

var fpsDiv = document.createElement( 'div' );
fpsDiv.id = 'fps';
fpsDiv.style.cssText = 'padding:0 0 3px 3px;text-align:left;background-color:#002';
fpsDiv.style.cssText = 'padding:0 0 3px 3px;background-color:#002;color:#0ff';
container.appendChild( fpsDiv );

var fpsMinMax = document.createElement( 'div' );
fpsMinMax.id = 'fpsTextMinMax';
fpsMinMax.style.cssText = 'text-align:right;height:0;padding-right:3px';
fpsDiv.appendChild( fpsMinMax );

var fpsText = document.createElement( 'div' );
fpsText.id = 'fpsText';
fpsText.style.cssText = 'color:#0ff;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px';
fpsText.innerHTML = 'FPS';
fpsDiv.appendChild( fpsText );

var fpsGraph = document.createElement( 'div' );
fpsGraph.id = 'fpsGraph';
fpsGraph.style.cssText = 'position:relative;width:74px;height:30px;background-color:#0ff';
fpsGraph.style.cssText = 'position:relative;width:' + bars + 'px;height:' + barHeight + 'px;background-color:#0ff';
fpsDiv.appendChild( fpsGraph );

while ( fpsGraph.children.length < 74 ) {
while ( fpsGraph.children.length < bars ) {

var bar = document.createElement( 'span' );
bar.style.cssText = 'width:1px;height:30px;float:left;background-color:#113';
bar.style.cssText = 'width:1px;height:' + barHeight + 'px;float:left;background-color:#113';
fpsGraph.appendChild( bar );

}

var msDiv = document.createElement( 'div' );
msDiv.id = 'ms';
msDiv.style.cssText = 'padding:0 0 3px 3px;text-align:left;background-color:#020;display:none';
msDiv.style.cssText = 'padding:0 0 3px 3px;background-color:#020;display:none;color:#0f0;';
container.appendChild( msDiv );

var msMinMax = document.createElement( 'div' );
msMinMax.id = 'msTextMinMax';
msMinMax.style.cssText = 'text-align:right;height:0;padding-right:3px';
msDiv.appendChild( msMinMax );

var msText = document.createElement( 'div' );
msText.id = 'msText';
msText.style.cssText = 'color:#0f0;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px';
msText.innerHTML = 'MS';
msDiv.appendChild( msText );

var msGraph = document.createElement( 'div' );
msGraph.id = 'msGraph';
msGraph.style.cssText = 'position:relative;width:74px;height:30px;background-color:#0f0';
msGraph.style.cssText = 'position:relative;width:' + bars + 'px;height:' + barHeight + 'px;background-color:#0f0';
msDiv.appendChild( msGraph );

while ( msGraph.children.length < 74 ) {
while ( msGraph.children.length < bars ) {

var bar = document.createElement( 'span' );
bar.style.cssText = 'width:1px;height:30px;float:left;background-color:#131';
bar.style.cssText = 'width:1px;height: ' + barHeight + 'px;float:left;background-color:#131';
msGraph.appendChild( bar );

}
Expand Down Expand Up @@ -97,31 +113,33 @@ var Stats = function () {

begin: function () {

startTime = Date.now();
startTime = performance.now();

},

end: function () {

var time = Date.now();
var time = performance.now();

ms = time - startTime;
msMin = Math.min( msMin, ms );
msMax = Math.max( msMax, ms );

msText.textContent = ms + ' MS (' + msMin + '-' + msMax + ')';
updateGraph( msGraph, Math.min( 30, 30 - ( ms / 200 ) * 30 ) );
msText.textContent = ms.toFixed(1) + ' MS';
msMinMax.textContent = '(' + msMin.toFixed(1) + '-' + msMax.toFixed(1) + ')';
updateGraph( msGraph, Math.min( barHeight, barHeight - ( ms / 200 ) * barHeight ) );

frames ++;

if ( time > prevTime + 1000 ) {

fps = Math.round( ( frames * 1000 ) / ( time - prevTime ) );
fps = (( frames * 1000 ) / ( time - prevTime )).toFixed(1);
fpsMin = Math.min( fpsMin, fps );
fpsMax = Math.max( fpsMax, fps );

fpsText.textContent = fps + ' FPS (' + fpsMin + '-' + fpsMax + ')';
updateGraph( fpsGraph, Math.min( 30, 30 - ( fps / 100 ) * 30 ) );
fpsText.textContent = fps + ' FPS';
fpsMinMax.textContent = '(' + fpsMin + '-' + fpsMax + ')';
updateGraph( fpsGraph, Math.min( barHeight, barHeight - ( fps / 100 ) * barHeight ) );

prevTime = time;
frames = 0;
Expand All @@ -138,7 +156,7 @@ var Stats = function () {

}

}
};

};

Expand Down