fix: Memory recycling bug, and remove no longer needed renderStrategy

Also cleanup documentation a bit

Author: robertleeplummerjr

dist/gpu-browser-core.js

@@ -1,6 +1,6 @@
 {
   "name": "gpu.js",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "description": "GPU Accelerated JavaScript",
   "engines": {
     "node": ">=8.0.0"
@@ -45,7 +45,8 @@
   "scripts": {
     "test": "qunit",
     "setup": "npm i -g gulp-cli",
-    "make": "gulp make"
+    "make": "gulp make",
+    "docs": "doxdox ./src --layout bootstrap --output docs.html"
   },
   "repository": {
     "type": "git",

dist/gpu-browser-core.min.js

@@ -1,5 +1,10 @@
 const { Texture } = require('../../../texture');
 
+/**
+ * @class
+ * @property framebuffer
+ * @extends Texture
+ */
 class GLTexture extends Texture {
   /**
    * @returns {Number}
@@ -52,7 +57,7 @@ class GLTexture extends Texture {
 
   delete() {
     super.delete();
-    if (this.framebuffer && this.texture && this.texture.refs < 1) {
+    if (this.framebuffer) {
       this.context.deleteFramebuffer(this.framebuffer);
     }
   }

dist/gpu-browser.js

@@ -10,7 +10,8 @@ class Kernel {
   }
 
   /**
-   * @type {Boolean}
+   * @abstract
+   * @returns {Boolean}
    */
   static isContextMatch(context) {
     throw new Error(`"isContextMatch" not implemented on ${ this.name }`);
@@ -42,7 +43,7 @@ class Kernel {
 
   /**
    *
-   * @param {string|IJSON} source
+   * @param {string|IKernelJSON} source
    * @param [settings]
    */
   constructor(source, settings) {
@@ -73,7 +74,7 @@ class Kernel {
 
     /**
      * The function source
-     * @type {String|IJSON}
+     * @type {String|IKernelJSON}
      */
     this.source = source;
 
@@ -106,9 +107,29 @@ class Kernel {
      * @type {Object}
      */
     this.constants = null;
+
+    /**
+     *
+     * @type {Object.<string, string>}
+     */
     this.constantTypes = null;
+
+    /**
+     *
+     * @type {Object.<string, number>}
+     */
     this.constantBitRatios = null;
+
+    /**
+     *
+     * @type {boolean}
+     */
     this.dynamicArguments = false;
+
+    /**
+     *
+     * @type {boolean}
+     */
     this.dynamicOutput = false;
 
     /**
@@ -178,7 +199,7 @@ class Kernel {
     this.pipeline = false;
 
     /**
-     * Make GPU use single precison or unsigned.  Acceptable values: 'single' or 'unsigned'
+     * Make GPU use single precision or unsigned.  Acceptable values: 'single' or 'unsigned'
      * @type {String|null}
      * @enum 'single' | 'unsigned'
      */
@@ -759,7 +780,7 @@ class Kernel {
   }
 
   /**
-   * @return {IJSON}
+   * @return {IKernelJSON}
    */
   toJSON() {
     return {

dist/gpu-browser.min.js

@@ -17,6 +17,7 @@ class WebGLKernelValue extends KernelValue {
     this.uploadValue = null;
     this.textureSize = null;
     this.bitRatio = null;
+    this.prevArg = null;
   }
 
   /**
@@ -144,6 +145,9 @@ class WebGLKernelValue extends KernelValue {
   }
 
   destroy() {
+    if (this.prevArg) {
+      this.prevArg.delete();
+    }
     this.context.deleteTexture(this.texture);
   }
 }