Import libtess.js

src/libtess.js/priorityq/PQNode.js

@@ -0,0 +1,78 @@
+/**
+ * Copyright 2000, Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright 2012, Google Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice including the dates of first publication and
+ * either this permission notice or a reference to http://oss.sgi.com/projects/FreeB/
+ * shall be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+ * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Original Code. The Original Code is: OpenGL Sample Implementation,
+ * Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+ * Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+ * Copyright in any portions created by third parties is as indicated
+ * elsewhere herein. All Rights Reserved.
+ */
+
+/**
+ * @author Eric Veach, July 1994
+ * @author Brendan Kenny
+ */
+
+// require libtess
+/*global libtess */
+
+// TODO(bckenny): maybe just have these created inline as literals
+// (or unboxed directly - PQHandle is just an array index number)
+
+/**
+ * [PQNode description]
+ * @constructor
+ */
+libtess.PQNode = function() {
+  /**
+   * [handle description]
+   * @type {libtess.PQHandle}
+   */
+  this.handle = 0;
+};
+
+/**
+ * Allocate a PQNode array of size size. If oldArray is not null, its contents
+ * are copied to the beginning of the new array. The rest of the array is
+ * filled with new PQNodes.
+ *
+ * @param {?Array.<libtess.PQNode>} oldArray [description]
+ * @param {number} size [description]
+ * @return {Array.<libtess.PQNode>} [description]
+ */
+libtess.PQNode.realloc = function(oldArray, size) {
+  var newArray = new Array(size);
+
+  // TODO(bckenny): better to reallocate array? or grow array?
+  var index = 0;
+  if (oldArray !== null) {
+    for (; index < oldArray.length; index++) {
+      newArray[index] = oldArray[index];
+    }
+  }
+
+  for (; index < size; index++) {
+    newArray[index] = new libtess.PQNode();
+  }
+
+  return newArray;
+};