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<h1 class="file-heading">File: src/pixi/textures/VideoTexture.js</h1>
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<pre class="code prettyprint linenums">
PIXI.VideoTexture = function( source, scaleMode )
{
if( !source ){
throw new Error( 'No video source element specified.' );
}
// hook in here to check if video is already available.
// PIXI.BaseTexture looks for a source.complete boolean, plus width & height.
if( (source.readyState === source.HAVE_ENOUGH_DATA || source.readyState === source.HAVE_FUTURE_DATA ) && source.width && source.height )
{
source.complete = true;
}
PIXI.BaseTexture.call( this, source, scaleMode );
this.autoUpdate = false;
this.updateBound = this._onUpdate.bind(this);
if( !source.complete )
{
this._onCanPlay = this.onCanPlay.bind(this);
source.addEventListener( 'canplay', this._onCanPlay );
source.addEventListener( 'canplaythrough', this._onCanPlay );
// started playing..
source.addEventListener( 'play', this.onPlayStart.bind(this) );
source.addEventListener( 'pause', this.onPlayStop.bind(this) );
}
};
PIXI.VideoTexture.prototype = Object.create( PIXI.BaseTexture.prototype );
PIXI.VideoTexture.constructor = PIXI.VideoTexture;
PIXI.VideoTexture.prototype._onUpdate = function()
{
if(this.autoUpdate)
{
window.requestAnimationFrame(this.updateBound);
this.dirty();
}
};
PIXI.VideoTexture.prototype.onPlayStart = function()
{
if(!this.autoUpdate)
{
window.requestAnimationFrame(this.updateBound);
this.autoUpdate = true;
}
};
PIXI.VideoTexture.prototype.onPlayStop = function()
{
this.autoUpdate = false;
};
PIXI.VideoTexture.prototype.onCanPlay = function()
{
if( event.type === 'canplaythrough' )
{
this.hasLoaded = true;
if( this.source )
{
this.source.removeEventListener( 'canplay', this._onCanPlay );
this.source.removeEventListener( 'canplaythrough', this._onCanPlay );
this.width = this.source.videoWidth;
this.height = this.source.videoHeight;
// prevent multiple loaded dispatches..
if( !this.__loaded ){
this.__loaded = true;
this.dispatchEvent( { type: 'loaded', content: this } );
}
}
}
};
/**
* Mimic Pixi BaseTexture.from.... method.
* @param video
* @param scaleMode
* @returns {PIXI.VideoTexture}
*/
PIXI.VideoTexture.baseTextureFromVideo = function( video, scaleMode )
{
if( !video._pixiId )
{
video._pixiId = 'video_' + PIXI.TextureCacheIdGenerator++;
}
var baseTexture = PIXI.BaseTextureCache[ video._pixiId ];
if( !baseTexture )
{
baseTexture = new PIXI.VideoTexture( video, scaleMode );
PIXI.BaseTextureCache[ video._pixiId ] = baseTexture;
}
return baseTexture;
};
PIXI.VideoTexture.prototype.destroy = function()
{
if( this.source && this.source._pixiId )
{
PIXI.BaseTextureCache[ this.source._pixiId ] = null;
delete PIXI.BaseTextureCache[ this.source._pixiId ];
this.source._pixiId = null;
delete this.source._pixiId;
}
PIXI.BaseTexture.prototype.destroy.call( this );
};
/**
* Mimic PIXI Texture.from... method.
* @param video
* @param scaleMode
* @returns {PIXI.Texture}
*/
PIXI.VideoTexture.textureFromVideo = function( video, scaleMode )
{
var baseTexture = PIXI.VideoTexture.baseTextureFromVideo( video, scaleMode );
return new PIXI.Texture( baseTexture );
};
PIXI.VideoTexture.fromUrl = function( videoSrc, scaleMode )
{
var video = document.createElement('video');
video.src = videoSrc;
video.autoPlay = true;
video.play();
return PIXI.VideoTexture.textureFromVideo( video, scaleMode);
};
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