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<h1 class="file-heading">File: src/pixi/utils/Detector.js</h1>
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<pre class="code prettyprint linenums">
/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
/**
* This helper function will automatically detect which renderer you should be using.
* WebGL is the preferred renderer as it is a lot faster. If webGL is not supported by
* the browser then this function will return a canvas renderer
* @class autoDetectRenderer
* @static
* @param width=800 {Number} the width of the renderers view
* @param height=600 {Number} the height of the renderers view
*
* @param [options] {Object} The optional renderer parameters
* @param [options.view] {HTMLCanvasElement} the canvas to use as a view, optional
* @param [options.transparent=false] {Boolean} If the render view is transparent, default false
* @param [options.antialias=false] {Boolean} sets antialias (only applicable in chrome at the moment)
* @param [options.preserveDrawingBuffer=false] {Boolean} enables drawing buffer preservation, enable this if you need to call toDataUrl on the webgl context
* @param [options.resolution=1] {Number} the resolution of the renderer retina would be 2
*
*/
PIXI.autoDetectRenderer = function(width, height, options)
{
if(!width)width = 800;
if(!height)height = 600;
// BORROWED from Mr Doob (mrdoob.com)
var webgl = ( function () { try {
var canvas = document.createElement( 'canvas' );
return !! window.WebGLRenderingContext && ( canvas.getContext( 'webgl' ) || canvas.getContext( 'experimental-webgl' ) );
} catch( e ) {
return false;
}
} )();
if( webgl )
{
return new PIXI.WebGLRenderer(width, height, options);
}
return new PIXI.CanvasRenderer(width, height, options);
};
/**
* This helper function will automatically detect which renderer you should be using.
* This function is very similar to the autoDetectRenderer function except that is will return a canvas renderer for android.
* Even thought both android chrome suports webGL the canvas implementation perform better at the time of writing.
* This function will likely change and update as webGL performance imporoves on thease devices.
* @class getRecommendedRenderer
* @static
* @param width=800 {Number} the width of the renderers view
* @param height=600 {Number} the height of the renderers view
*
* @param [options] {Object} The optional renderer parameters
* @param [options.view] {HTMLCanvasElement} the canvas to use as a view, optional
* @param [options.transparent=false] {Boolean} If the render view is transparent, default false
* @param [options.antialias=false] {Boolean} sets antialias (only applicable in chrome at the moment)
* @param [options.preserveDrawingBuffer=false] {Boolean} enables drawing buffer preservation, enable this if you need to call toDataUrl on the webgl context
* @param [options.resolution=1] {Number} the resolution of the renderer retina would be 2
*
*/
PIXI.autoDetectRecommendedRenderer = function(width, height, options)
{
if(!width)width = 800;
if(!height)height = 600;
// BORROWED from Mr Doob (mrdoob.com)
var webgl = ( function () { try {
var canvas = document.createElement( 'canvas' );
return !! window.WebGLRenderingContext && ( canvas.getContext( 'webgl' ) || canvas.getContext( 'experimental-webgl' ) );
} catch( e ) {
return false;
}
} )();
var isAndroid = /Android/i.test(navigator.userAgent);
if( webgl && !isAndroid)
{
return new PIXI.WebGLRenderer(width, height, options);
}
return new PIXI.CanvasRenderer(width, height, options);
};
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