MCP 3D Printer Server

by DMontgomery40
Verified
import { Cache } from './Cache.js'; import { Loader } from './Loader.js'; class ImageBitmapLoader extends Loader { constructor( manager ) { super( manager ); this.isImageBitmapLoader = true; if ( typeof createImageBitmap === 'undefined' ) { console.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' ); } if ( typeof fetch === 'undefined' ) { console.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' ); } this.options = { premultiplyAlpha: 'none' }; } setOptions( options ) { this.options = options; return this; } load( url, onLoad, onProgress, onError ) { if ( url === undefined ) url = ''; if ( this.path !== undefined ) url = this.path + url; url = this.manager.resolveURL( url ); const scope = this; const cached = Cache.get( url ); if ( cached !== undefined ) { scope.manager.itemStart( url ); // If cached is a promise, wait for it to resolve if ( cached.then ) { cached.then( imageBitmap => { if ( onLoad ) onLoad( imageBitmap ); scope.manager.itemEnd( url ); } ).catch( e => { if ( onError ) onError( e ); } ); return; } // If cached is not a promise (i.e., it's already an imageBitmap) setTimeout( function () { if ( onLoad ) onLoad( cached ); scope.manager.itemEnd( url ); }, 0 ); return cached; } const fetchOptions = {}; fetchOptions.credentials = ( this.crossOrigin === 'anonymous' ) ? 'same-origin' : 'include'; fetchOptions.headers = this.requestHeader; const promise = fetch( url, fetchOptions ).then( function ( res ) { return res.blob(); } ).then( function ( blob ) { return createImageBitmap( blob, Object.assign( scope.options, { colorSpaceConversion: 'none' } ) ); } ).then( function ( imageBitmap ) { Cache.add( url, imageBitmap ); if ( onLoad ) onLoad( imageBitmap ); scope.manager.itemEnd( url ); return imageBitmap; } ).catch( function ( e ) { if ( onError ) onError( e ); Cache.remove( url ); scope.manager.itemError( url ); scope.manager.itemEnd( url ); } ); Cache.add( url, promise ); scope.manager.itemStart( url ); } } export { ImageBitmapLoader };