fireball/lib/loaders/DataTextureLoader.js
2018-12-25 17:29:22 +03:30

103 lines
2.2 KiB
JavaScript

import { LinearFilter, LinearMipMapLinearFilter, ClampToEdgeWrapping } from '../constants.js';
import { FileLoader } from './FileLoader.js';
import { DataTexture } from '../textures/DataTexture.js';
import { DefaultLoadingManager } from './LoadingManager.js';
/**
* @author Nikos M. / https://github.com/foo123/
*
* Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
*/
function DataTextureLoader( manager ) {
this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
// override in sub classes
this._parser = null;
}
Object.assign( DataTextureLoader.prototype, {
load: function ( url, onLoad, onProgress, onError ) {
var scope = this;
var texture = new DataTexture();
var loader = new FileLoader( this.manager );
loader.setResponseType( 'arraybuffer' );
loader.setPath( this.path );
loader.load( url, function ( buffer ) {
var texData = scope._parser( buffer );
if ( ! texData ) return;
if ( undefined !== texData.image ) {
texture.image = texData.image;
} else if ( undefined !== texData.data ) {
texture.image.width = texData.width;
texture.image.height = texData.height;
texture.image.data = texData.data;
}
texture.wrapS = undefined !== texData.wrapS ? texData.wrapS : ClampToEdgeWrapping;
texture.wrapT = undefined !== texData.wrapT ? texData.wrapT : ClampToEdgeWrapping;
texture.magFilter = undefined !== texData.magFilter ? texData.magFilter : LinearFilter;
texture.minFilter = undefined !== texData.minFilter ? texData.minFilter : LinearMipMapLinearFilter;
texture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1;
if ( undefined !== texData.format ) {
texture.format = texData.format;
}
if ( undefined !== texData.type ) {
texture.type = texData.type;
}
if ( undefined !== texData.mipmaps ) {
texture.mipmaps = texData.mipmaps;
}
if ( 1 === texData.mipmapCount ) {
texture.minFilter = LinearFilter;
}
texture.needsUpdate = true;
if ( onLoad ) onLoad( texture, texData );
}, onProgress, onError );
return texture;
},
setPath: function ( value ) {
this.path = value;
return this;
}
} );
export { DataTextureLoader };