feat: add TextDecoder polyfill & EXRLoader works

README.md

@@ -44,6 +44,7 @@ PLATFORM.dispose();
 2. RGBELoader & PMREMGenerator
 3. SVGLoader
 4. OBJLoader
+5. EXRLoader
 
 #### Controls
 

build/three.js

@@ -271,6 +271,7 @@
 	exports.$window = null;
 	exports.$document = null;
 	exports.$DOMParser = null;
+	exports.$TextDecoder = null;
 	exports.$XMLHttpRequest = null;
 	exports.$OffscreenCanvas = null;
 	exports.$HTMLCanvasElement = null;
@@ -296,6 +297,7 @@
 			exports.$createImageBitmap = globals.createImageBitmap;
 			exports.$URL = exports.$window.URL;
 			exports.$DOMParser = exports.$window.DOMParser;
+			exports.$TextDecoder = exports.$window.TextDecoder;
 			exports.$requestAnimationFrame = exports.$window.requestAnimationFrame;
 			exports.$window.cancelAnimationFrame;
 		};
@@ -308,6 +310,7 @@
 			exports.$window = null;
 			exports.$document = null;
 			exports.$DOMParser = null;
+			exports.$TextDecoder = null;
 			exports.$XMLHttpRequest = null;
 			exports.$OffscreenCanvas = null;
 			exports.$HTMLCanvasElement = null;
@@ -30185,8 +30188,8 @@
 
 	var LoaderUtils = {
 		decodeText: function decodeText(array) {
-			if (typeof TextDecoder !== 'undefined') {
-				return new TextDecoder().decode(array);
+			if (typeof exports.$TextDecoder !== 'undefined') {
+				return new exports.$TextDecoder().decode(array);
 			} // Avoid the String.fromCharCode.apply(null, array) shortcut, which
 			// throws a "maximum call stack size exceeded" error for large arrays.
 

config/platfromize.js

@@ -8,6 +8,7 @@ export const platformVariables = [
   'window',
   'document',
   'DOMParser',
+  'TextDecoder',
   'XMLHttpRequest',
   'OffscreenCanvas',
   'HTMLCanvasElement',

examples/jsm/loaders/EXRLoader.js

@@ -1,3 +1,4 @@
+import { $TextDecoder } from '../../../build/three.module.js';
 import { DataTextureLoader, FloatType, HalfFloatType, UnsignedByteType, RGBEFormat, RGBAFormat, LinearEncoding, LinearFilter, RGBEEncoding, NearestFilter, DataUtils } from '../../../build/three.module.js';
 import { Inflate } from '../libs/inflate.module.min.js';
 
@@ -1707,7 +1708,7 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
 
 			}
 
-			var stringValue = new TextDecoder().decode(
+			var stringValue = new $TextDecoder().decode(
 				uintBuffer.slice( offset.value, offset.value + endOffset )
 			);
 
@@ -1719,7 +1720,7 @@ EXRLoader.prototype = Object.assign( Object.create( DataTextureLoader.prototype
 
 		function parseFixedLengthString( buffer, offset, size ) {
 
-			var stringValue = new TextDecoder().decode(
+			var stringValue = new $TextDecoder().decode(
 				new Uint8Array( buffer ).slice( offset.value, offset.value + size )
 			);
 

src/Platform.js

@@ -4,6 +4,7 @@ let $Blob = null;
 let $window = null;
 let $document = null;
 let $DOMParser = null;
+let $TextDecoder = null;
 let $XMLHttpRequest = null;
 let $OffscreenCanvas = null;
 let $HTMLCanvasElement = null;
@@ -30,6 +31,7 @@ class Platform {
 
     $URL = $window.URL;
     $DOMParser = $window.DOMParser;
+    $TextDecoder = $window.TextDecoder;
     $requestAnimationFrame = $window.requestAnimationFrame;
     $cancelAnimationFrame = $window.cancelAnimationFrame;
   }
@@ -43,6 +45,7 @@ class Platform {
     $window = null;
     $document = null;
     $DOMParser = null;
+    $TextDecoder = null;
     $XMLHttpRequest = null;
     $OffscreenCanvas = null;
     $HTMLCanvasElement = null;
@@ -61,6 +64,7 @@ export {
   PLATFORM,
   $document,
   $DOMParser,
+  $TextDecoder,
   $XMLHttpRequest,
   $OffscreenCanvas,
   $HTMLCanvasElement,

src/WechatPlatform/index.js

@@ -6,6 +6,7 @@ import XMLHttpRequest from './XMLHttpRequest';
 import copyProperties from '../libs/copyProperties';
 // import { DOMParser } from 'xmldom';
 import { $DOMParser as DOMParser } from '../libs/DOMParser';
+import { $TextDecoder as TextDecoder } from '../libs/TextDecoder';
 
 function OffscreenCanvas() {
   return wx.createOffscreenCanvas();
@@ -41,6 +42,7 @@ export class WechatPlatform {
         },
       },
       DOMParser,
+      TextDecoder,
     };
 
     [this.canvas, this.document, this.window].forEach(i => {

src/libs/TextDecoder.js

@@ -0,0 +1,10 @@
+export class $TextDecoder {
+  /**
+   * 不支持 UTF-8 code points 大于 1 字节
+   * @see https://stackoverflow.com/questions/17191945/conversion-between-utf-8-arraybuffer-and-string
+   * @param {Uint8Array} uint8Array 
+   */
+  decode(uint8Array) {
+    return String.fromCharCode.apply(null, uint8Array);
+  }
+}