var Class = require('../../utils/Class'); 
var BitmapMask = new Class({ 
initialize: function BitmapMask(scene, renderable){ 
var renderer = scene.sys.game.renderer; 
this.renderer = renderer; 
this.bitmapMask = renderable; 
this.maskTexture = null ; 
this.mainTexture = null ; 
this.dirty = true ; 
this.mainFramebuffer = null ; 
this.maskFramebuffer = null ; 
this.prevFramebuffer = null ; 
this.invertAlpha = false ; 
this.isStencil = false ; 
if (renderer && renderer.gl) { 
var width = renderer.width; 
var height = renderer.height; 
var pot = ((width & (width - 1)) === 0 && (height & (height - 1)) === 0); 
var gl = renderer.gl; 
var wrap = pot? gl.REPEAT: gl.CLAMP_TO_EDGE; 
var filter = gl.LINEAR; 
this.mainTexture = renderer.createTexture2D(0, filter, filter, wrap, wrap, gl.RGBA, null , width, height); 
this.maskTexture = renderer.createTexture2D(0, filter, filter, wrap, wrap, gl.RGBA, null , width, height); 
this.mainFramebuffer = renderer.createFramebuffer(width, height, this.mainTexture, true ); 
this.maskFramebuffer = renderer.createFramebuffer(width, height, this.maskTexture, true ); 
renderer.onContextRestored(function (renderer){ 
var width = renderer.width; 
var height = renderer.height; 
var pot = ((width & (width - 1)) === 0 && (height & (height - 1)) === 0); 
var gl = renderer.gl; 
var wrap = pot? gl.REPEAT: gl.CLAMP_TO_EDGE; 
var filter = gl.LINEAR; 
this.mainTexture = renderer.createTexture2D(0, filter, filter, wrap, wrap, gl.RGBA, null , width, height); 
this.maskTexture = renderer.createTexture2D(0, filter, filter, wrap, wrap, gl.RGBA, null , width, height); 
this.mainFramebuffer = renderer.createFramebuffer(width, height, this.mainTexture, true ); 
this.maskFramebuffer = renderer.createFramebuffer(width, height, this.maskTexture, true ); 
} 
, this); 
} 
} 
,
setBitmap: function (renderable){ 
this.bitmapMask = renderable; 
} 
,
preRenderWebGL: function (renderer, maskedObject, camera){ 
renderer.pipelines.BitmapMaskPipeline.beginMask(this, maskedObject, camera); 
} 
,
postRenderWebGL: function (renderer, camera){ 
renderer.pipelines.BitmapMaskPipeline.endMask(this, camera); 
} 
,
preRenderCanvas: function (){ 
} 
,
postRenderCanvas: function (){ 
} 
,
destroy: function (){ 
this.bitmapMask = null ; 
var renderer = this.renderer; 
if (renderer && renderer.gl) { 
renderer.deleteTexture(this.mainTexture); 
renderer.deleteTexture(this.maskTexture); 
renderer.deleteFramebuffer(this.mainFramebuffer); 
renderer.deleteFramebuffer(this.maskFramebuffer); 
} 
this.mainTexture = null ; 
this.maskTexture = null ; 
this.mainFramebuffer = null ; 
this.maskFramebuffer = null ; 
this.prevFramebuffer = null ; 
this.renderer = null ; 
} 
}
); 
module.exports = BitmapMask;