var CanvasPool = require('../display/canvas/CanvasPool'); 
var Class = require('../utils/Class'); 
var IsSizePowerOfTwo = require('../math/pow2/IsSizePowerOfTwo'); 
var ScaleModes = require('../renderer/ScaleModes'); 
var TextureSource = new Class({ 
initialize: function TextureSource(texture, source, width, height, flipY){ 
if (flipY === undefined) { 
flipY = false ; 
} 
var game = texture.manager.game; 
this.renderer = game.renderer; 
this.texture = texture; 
this.source = source; 
this.image = source; 
this.compressionAlgorithm = null ; 
this.resolution = 1; 
this.width = width || source.naturalWidth || source.videoWidth || source.width || 0; 
this.height = height || source.naturalHeight || source.videoHeight || source.height || 0; 
this.scaleMode = ScaleModes.DEFAULT; 
this.isCanvas = (source instanceof HTMLCanvasElement); 
this.isVideo = (window.hasOwnProperty('HTMLVideoElement') && source instanceof HTMLVideoElement); 
this.isRenderTexture = (source.type === 'RenderTexture'); 
this.isGLTexture = (window.hasOwnProperty('WebGLTexture') && source instanceof WebGLTexture); 
this.isPowerOf2 = IsSizePowerOfTwo(this.width, this.height); 
this.glTexture = null ; 
this.glIndex = 0; 
this.glIndexCounter = -1; 
this.flipY = flipY; 
_AN_Call_init('init', this, game); 
} 
,
init: function (game){ 
var renderer = this.renderer; 
if (renderer) { 
if (renderer.gl) { 
if (this.isCanvas) { 
this.glTexture = renderer.createCanvasTexture(this.image, false , this.flipY); 
} 
 else if (this.isVideo) { 
this.glTexture = renderer.createVideoTexture(this.image, false , this.flipY); 
} 
 else if (this.isRenderTexture) { 
this.image = this.source.canvas; 
this.glTexture = renderer.createTextureFromSource(null , this.width, this.height, this.scaleMode); 
} 
 else if (this.isGLTexture) { 
this.glTexture = this.source; 
} 
 else { 
this.glTexture = renderer.createTextureFromSource(this.image, this.width, this.height, this.scaleMode); 
} 
} 
 else if (this.isRenderTexture) { 
this.image = this.source.canvas; 
} 
} 
if (!game.config.antialias) { 
this.setFilter(1); 
} 
} 
,
setFilter: function (filterMode){ 
if (this.renderer.gl) { 
this.renderer.setTextureFilter(this.glTexture, filterMode); 
} 
this.scaleMode = filterMode; 
} 
,
setFlipY: function (value){ 
if (value === undefined) { 
value = true ; 
} 
this.flipY = value; 
return this; 
} 
,
update: function (){ 
var gl = this.renderer.gl; 
if (gl && this.isCanvas) { 
this.glTexture = this.renderer.updateCanvasTexture(this.image, this.glTexture, this.flipY); 
} 
 else if (gl && this.isVideo) { 
this.glTexture = this.renderer.updateVideoTexture(this.image, this.glTexture, this.flipY); 
} 
} 
,
destroy: function (){ 
if (this.glTexture) { 
this.renderer.deleteTexture(this.glTexture, false ); 
} 
if (this.isCanvas) { 
CanvasPool.remove(this.image); 
} 
this.renderer = null ; 
this.texture = null ; 
this.source = null ; 
this.image = null ; 
this.glTexture = null ; 
} 
}
); 
module.exports = TextureSource;