| import { ImageUtils } from '../extras/ImageUtils.js'; |
| import * as MathUtils from '../math/MathUtils.js'; |
|
|
| let _sourceId = 0; |
|
|
| class Source { |
|
|
| constructor( data = null ) { |
|
|
| this.isSource = true; |
|
|
| Object.defineProperty( this, 'id', { value: _sourceId ++ } ); |
|
|
| this.uuid = MathUtils.generateUUID(); |
|
|
| this.data = data; |
|
|
| this.version = 0; |
|
|
| } |
|
|
| set needsUpdate( value ) { |
|
|
| if ( value === true ) this.version ++; |
|
|
| } |
|
|
| toJSON( meta ) { |
|
|
| const isRootObject = ( meta === undefined || typeof meta === 'string' ); |
|
|
| if ( ! isRootObject && meta.images[ this.uuid ] !== undefined ) { |
|
|
| return meta.images[ this.uuid ]; |
|
|
| } |
|
|
| const output = { |
| uuid: this.uuid, |
| url: '' |
| }; |
|
|
| const data = this.data; |
|
|
| if ( data !== null ) { |
|
|
| let url; |
|
|
| if ( Array.isArray( data ) ) { |
|
|
| |
|
|
| url = []; |
|
|
| for ( let i = 0, l = data.length; i < l; i ++ ) { |
|
|
| if ( data[ i ].isDataTexture ) { |
|
|
| url.push( serializeImage( data[ i ].image ) ); |
|
|
| } else { |
|
|
| url.push( serializeImage( data[ i ] ) ); |
|
|
| } |
|
|
| } |
|
|
| } else { |
|
|
| |
|
|
| url = serializeImage( data ); |
|
|
| } |
|
|
| output.url = url; |
|
|
| } |
|
|
| if ( ! isRootObject ) { |
|
|
| meta.images[ this.uuid ] = output; |
|
|
| } |
|
|
| return output; |
|
|
| } |
|
|
| } |
|
|
| function serializeImage( image ) { |
|
|
| if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) || |
| ( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) || |
| ( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) { |
|
|
| |
|
|
| return ImageUtils.getDataURL( image ); |
|
|
| } else { |
|
|
| if ( image.data ) { |
|
|
| |
|
|
| return { |
| data: Array.from( image.data ), |
| width: image.width, |
| height: image.height, |
| type: image.data.constructor.name |
| }; |
|
|
| } else { |
|
|
| console.warn( 'THREE.Texture: Unable to serialize Texture.' ); |
| return {}; |
|
|
| } |
|
|
| } |
|
|
| } |
|
|
| export { Source }; |
|
|
