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, 70 insertions, 0 deletions

diff --git a/o3d/samples/o3d-webgl/draw_context.js b/o3d/samples/o3d-webgl/draw_context.js
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+/*
+ * Copyright 2010, 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.
+ */
+
+
+/**
+ * The DrawContext defines the parameters used for a particular drawing pass.
+ * It contains two 4-by-4 matrix params, view and
+ * projection. These correspond to the viewing and projection transformation
+ * matrices.
+ * 
+ * @param {!o3d.Matrix4} opt_view The view matrix for this DrawContext.
+ * @param {!o3d.Matrix4} opt_projection The projection matrix
+ *     for this DrawContext.
+ * @constructor
+ */
+o3d.DrawContext = function(opt_view, opt_projection) {
+  this.view = opt_view ||
+      [[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]];
+  this.projection = opt_projection ||
+      [[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]];
+};
+o3d.inherit('DrawContext', 'NamedObject');
+
+
+/**
+ * The view matrix represents the viewing transformation, used to take vertices
+ * from world space to view space.
+ * @type {o3d.Matrix4}
+ */
+o3d.DrawContext.prototype.view = [];
+
+
+
+/**
+ * The projection matrix represents the projection transformation, used to take
+ * vertices from view space to screen space.  This matrix is usually an
+ * orthographic or perspective transformation.
+ * @type {o3d.Matrix4}
+ */
+o3d.DrawContext.prototype.projection = [];
+
+