import { Texture } from './Texture';

import { NearestFilter, UnsignedShortType, DepthFormat, DepthStencilFormat } from '../constants';

/**

* @author Matt DesLauriers / @mattdesl

* @author atix / arthursilber.de

*/

function DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {

format = format !== undefined ? format : DepthFormat;

if ( format !== DepthFormat && format !== DepthStencilFormat ) {

throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' )

}

Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

this.image = { width: width, height: height };

this.type = type !== undefined ? type : UnsignedShortType;

this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;

this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;

this.flipY = false;

this.generateMipmaps = false;

}

DepthTexture.prototype = Object.create( Texture.prototype );

DepthTexture.prototype.constructor = DepthTexture;

DepthTexture.prototype.isDepthTexture = true;

export { DepthTexture };