First check in of the o3d implimentation in webgl. Classes work well enough to run the hellocube sample.

Review URL: http://codereview.chromium.org/561026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@40133 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 114 insertions, 0 deletions

diff --git a/o3d/samples/o3djs/webgl.js b/o3d/samples/o3djs/webgl.js
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+/*
+ * Copyright 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+/**
+ * @fileoverview This file contains utility functions for o3d running on
+ * top of webgl.  The function o3djs.webgl.makeClients replaces the
+ * function o3djs.util.makeClients.
+ */
+
+o3djs.provide('o3djs.webgl');
+
+o3djs.require('o3djs.util');
+
+/**
+ * A Module with various utilities.
+ * @namespace
+ */
+o3djs.webgl = o3djs.webgl || {};
+
+
+/**
+ * Finds all divs with an id that starts with "o3d" and inits a canvas
+ * under them with o3d client object and the o3d namespace.
+ */
+o3djs.webgl.makeClients = function(callback,
+                                       opt_features,
+                                       opt_requiredVersion,
+                                       opt_failureCallback,
+                                       opt_id,
+                                       opt_tag) {
+  opt_failureCallback = opt_failureCallback || o3djs.webgl.informPluginFailure;
+
+  var clientElements = [];
+  var elements = o3djs.util.getO3DContainerElements(opt_id, opt_tag);
+
+  for (var ee = 0; ee < elements.length; ++ee) {
+    var element = elements[ee];
+    var features = opt_features;
+    if (!features) {
+      var o3d_features = element.getAttribute('o3d_features');
+      if (o3d_features) {
+        features = o3d_features;
+      } else {
+        features = '';
+      }
+    }
+    var objElem = o3djs.webgl.createClient(element, features);
+    clientElements.push(objElem);
+  }
+
+  callback(clientElements);
+};
+
+
+/**
+ * Creates a canvas under the given parent element and an o3d.Client
+ * under that.
+ */
+o3djs.webgl.createClient = function(element, opt_features) {
+  opt_features = opt_features || '';
+
+  // TODO(petersont): Not sure what to do with the features object.
+  var canvas;
+  canvas = document.createElement('canvas');
+  canvas.setAttribute('width', element.getAttribute('width'));
+  canvas.setAttribute('height', element.getAttribute('height'));
+  canvas.client = new o3d.Client;
+  canvas.o3d = o3d;
+
+  var gl;
+  try {gl = canvas.getContext("experimental-webgl") } catch(e) { }
+  if (!gl)
+      try {gl = canvas.getContext("moz-webgl") } catch(e) { }
+  if (!gl) {
+      alert("No WebGL context found");
+      return null;
+  }
+
+  canvas.client.gl = gl;
+
+  element.appendChild(canvas);
+  return canvas;
+};
+
+