/**
 * @author mr.doob / http://mrdoob.com/
 * @author alteredq / http://alteredqualia.com/
 * @author szimek / https://github.com/szimek/
 */

THREE.Texture = function ( image, mapping, wrapS, wrapT, magFilter, minFilter ) {

	this.id = THREE.TextureCount ++;

	this.image = image;

	this.mapping = mapping !== undefined ? mapping : new THREE.UVMapping();

	this.wrapS = wrapS !== undefined ? wrapS : THREE.ClampToEdgeWrapping;
	this.wrapT = wrapT !== undefined ? wrapT : THREE.ClampToEdgeWrapping;

	this.magFilter = magFilter !== undefined ? magFilter : THREE.LinearFilter;
	this.minFilter = minFilter !== undefined ? minFilter : THREE.LinearMipMapLinearFilter;

	this.offset = new THREE.Vector2( 0, 0 );
	this.repeat = new THREE.Vector2( 1, 1 );

	this.needsUpdate = false;
	this.onUpdate = null;

};

THREE.Texture.prototype = {

	constructor: THREE.Texture,

	clone: function () {

		var clonedTexture = new THREE.Texture( this.image, this.mapping, this.wrapS, this.wrapT, this.magFilter, this.minFilter );

		clonedTexture.offset.copy( this.offset );
		clonedTexture.repeat.copy( this.repeat );

		return clonedTexture;

	}

};

THREE.TextureCount = 0;

THREE.MultiplyOperation = 0;
THREE.MixOperation = 1;

// Mapping modes

THREE.CubeReflectionMapping = function () {};
THREE.CubeRefractionMapping = function () {};

THREE.LatitudeReflectionMapping = function () {};
THREE.LatitudeRefractionMapping = function () {};

THREE.SphericalReflectionMapping = function () {};
THREE.SphericalRefractionMapping = function () {};

THREE.UVMapping = function () {};

// Wrapping modes

THREE.RepeatWrapping = 0;
THREE.ClampToEdgeWrapping = 1;
THREE.MirroredRepeatWrapping = 2;

// Filters

THREE.NearestFilter = 3;
THREE.NearestMipMapNearestFilter = 4;
THREE.NearestMipMapLinearFilter = 5;
THREE.LinearFilter = 6;
THREE.LinearMipMapNearestFilter = 7;
THREE.LinearMipMapLinearFilter = 8;

// Types

THREE.ByteType = 9;
THREE.UnsignedByteType = 10;
THREE.ShortType = 11;
THREE.UnsignedShortType = 12;
THREE.IntType = 13;
THREE.UnsignedIntType = 14;
THREE.FloatType = 15;

// Formats

THREE.AlphaFormat = 16;
THREE.RGBFormat = 17;
THREE.RGBAFormat = 18;
THREE.LuminanceFormat = 19;
THREE.LuminanceAlphaFormat = 20;