Merge pull request #255 from Strilanc/dev

Dev

Author: Strilanc

src/browser/Polyfills.js

@@ -5,15 +5,24 @@ Float32Array.prototype.slice = Float32Array.prototype.slice || function(a, b) {
 Float64Array.prototype.slice = Float64Array.prototype.slice || function(a, b) {
     return new Float64Array(Array.from(this).slice(a, b));
 };
-Uint32Array.prototype.slice = Float64Array.prototype.slice || function(a, b) {
+Uint32Array.prototype.slice = Uint32Array.prototype.slice || function(a, b) {
     return new Uint32Array(Array.from(this).slice(a, b));
 };
-Uint16Array.prototype.slice = Float64Array.prototype.slice || function(a, b) {
+Int32Array.prototype.slice = Int32Array.prototype.slice || function(a, b) {
+    return new Int32Array(Array.from(this).slice(a, b));
+};
+Uint16Array.prototype.slice = Uint16Array.prototype.slice || function(a, b) {
     return new Uint16Array(Array.from(this).slice(a, b));
 };
-Uint8Array.prototype.slice = Float64Array.prototype.slice || function(a, b) {
+Int16Array.prototype.slice = Int16Array.prototype.slice || function(a, b) {
+    return new Int16Array(Array.from(this).slice(a, b));
+};
+Uint8Array.prototype.slice = Uint8Array.prototype.slice || function(a, b) {
     return new Uint8Array(Array.from(this).slice(a, b));
 };
+Int8Array.prototype.slice = Int8Array.prototype.slice || function(a, b) {
+    return new Int8Array(Array.from(this).slice(a, b));
+};
 
 const ARRAY_ITER = function() {
     let self = this;
@@ -28,6 +37,9 @@ Float64Array.prototype[Symbol.iterator] = Float64Array.prototype[Symbol.iterator
 Uint32Array.prototype[Symbol.iterator] = Uint32Array.prototype[Symbol.iterator] || ARRAY_ITER;
 Uint16Array.prototype[Symbol.iterator] = Uint16Array.prototype[Symbol.iterator] || ARRAY_ITER;
 Uint8Array.prototype[Symbol.iterator] = Uint8Array.prototype[Symbol.iterator] || ARRAY_ITER;
+Int32Array.prototype[Symbol.iterator] = Int32Array.prototype[Symbol.iterator] || ARRAY_ITER;
+Int16Array.prototype[Symbol.iterator] = Int16Array.prototype[Symbol.iterator] || ARRAY_ITER;
+Int8Array.prototype[Symbol.iterator] = Int8Array.prototype[Symbol.iterator] || ARRAY_ITER;
 
 // This was missing on the iPhone I tested.
 window.performance = window.performance || {};

src/webgl/ShaderCoders.js

@@ -710,7 +710,6 @@ function changeShaderCoder(newCoder) {
 function _tryWriteAndReadFloatingPointTexture() {
     let texture = new WglTexture(1, 1, WebGLRenderingContext.FLOAT);
     let shader = new WglShader(`void main() { gl_FragColor = vec4(2.0, 3.5, 7.0, -7654321.0); }`);
-    //noinspection UnusedCatchParameterJS
     try {
         shader.withArgs().renderTo(texture);
         let result = texture.readPixels(false);
@@ -736,12 +735,11 @@ function _tryWriteAndPassFloatingPointWithByteReadTexture() {
     let passer = new WglShader(`uniform sampler2D t; void main() {
         vec4 v = texture2D(t, gl_FragCoord.xy);
         if (v == vec4(2.0, 3.0, 5.0, -7654321.0)) { // Testing that expected precision is present.
-            gl_FragColor = vec4(1.1, 3.0, 5.0, 7.0) / 255.0;
+            gl_FragColor = vec4(2.0, 3.0, 5.0, 254.0) / 255.0;
         } else {
             gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);
         }
     }`);
-    //noinspection UnusedCatchParameterJS
     try {
         shader.withArgs().renderTo(textureFloat);
         passer.withArgs(WglArg.texture('t', textureFloat)).renderTo(textureByte);
@@ -751,7 +749,7 @@ function _tryWriteAndPassFloatingPointWithByteReadTexture() {
             result[0] === 2 &&
             result[1] === 3 &&
             result[2] === 5 &&
-            result[3] === 7;
+            result[3] === 254;
     } catch (ex) {
         console.warn(ex);
         return false;