three
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JavaScript 3D library
98 lines (56 loc) • 2.28 kB
JavaScript
import { LinearFilter, LinearMipmapLinearFilter, ClampToEdgeWrapping } from '../constants.js';
import { FileLoader } from './FileLoader.js';
import { DataTexture } from '../textures/DataTexture.js';
import { Loader } from './Loader.js';
/**
* Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
*
* Sub classes have to implement the parse() method which will be used in load().
*/
function DataTextureLoader( manager ) {
Loader.call( this, manager );
}
DataTextureLoader.prototype = Object.assign( Object.create( Loader.prototype ), {
constructor: DataTextureLoader,
load: function ( url, onLoad, onProgress, onError ) {
const scope = this;
const texture = new DataTexture();
const loader = new FileLoader( this.manager );
loader.setResponseType( 'arraybuffer' );
loader.setRequestHeader( this.requestHeader );
loader.setPath( this.path );
loader.load( url, function ( buffer ) {
const texData = scope.parse( buffer );
if ( ! texData ) return;
if ( texData.image !== undefined ) {
texture.image = texData.image;
} else if ( texData.data !== undefined ) {
texture.image.width = texData.width;
texture.image.height = texData.height;
texture.image.data = texData.data;
}
texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping;
texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping;
texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter;
texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearFilter;
texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1;
if ( texData.format !== undefined ) {
texture.format = texData.format;
}
if ( texData.type !== undefined ) {
texture.type = texData.type;
}
if ( texData.mipmaps !== undefined ) {
texture.mipmaps = texData.mipmaps;
texture.minFilter = LinearMipmapLinearFilter; // presumably...
}
if ( texData.mipmapCount === 1 ) {
texture.minFilter = LinearFilter;
}
texture.needsUpdate = true;
if ( onLoad ) onLoad( texture, texData );
}, onProgress, onError );
return texture;
}
} );
export { DataTextureLoader };