From 818582d389f504c915be0c9052fafa33e3e76c92 Mon Sep 17 00:00:00 2001
From: hwc487
Date: Wed, 7 Mar 2012 16:48:48 -0800
Subject: File IO

---
 js/lib/rdge/runtime/GLRuntime.js | 357 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 357 insertions(+)
 create mode 100644 js/lib/rdge/runtime/GLRuntime.js

(limited to 'js/lib/rdge/runtime/GLRuntime.js')

diff --git a/js/lib/rdge/runtime/GLRuntime.js b/js/lib/rdge/runtime/GLRuntime.js
new file mode 100644
index 00000000..a4da8549
--- /dev/null
+++ b/js/lib/rdge/runtime/GLRuntime.js
@@ -0,0 +1,357 @@
+/* <copyright>
+This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
+No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
+(c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
+</copyright> */
+
+
+var	GeomObj					= require("js/lib/geom/geom-obj").GeomObj,
+	RuntimeGeomObj			= require("js/lib/rdge/runtime/RuntimeGeomObj"),
+	RuntimeRectangle		= RuntimeGeomObj.RuntimeRectangle,
+	RuntimeOval				= RuntimeGeomObj.RuntimeOval,
+	getPropertyFromString	= require("js/lib/rdge/runtime/RuntimeGeomObj").getPropertyFromString;
+
+///////////////////////////////////////////////////////////////////////
+// Class GLRuntime
+//      Manages runtime fora WebGL canvas
+///////////////////////////////////////////////////////////////////////
+var GLRuntime = function GLRuntime( canvas, importStr )
+{
+    ///////////////////////////////////////////////////////////////////////
+    // Instance variables
+    ///////////////////////////////////////////////////////////////////////
+	this._canvas		= canvas;
+	this._context		= null;
+	this._importStr		= importStr;
+
+	this.renderer		= null;
+	this.myScene		= null;
+	this.light			= null;
+	this.light2			= null;
+	this._rootNode		= null;
+
+	this._firstRender	= true;
+	this._initialized	= false;
+
+	this._useWebGL		= false;
+
+	// view parameters
+	this._fov = 45.0;
+	this._zNear = 0.1;
+	this._zFar = 100.0;
+	this._viewDist = 5.0;
+
+	this._aspect = canvas.width/canvas.height;
+
+	this._geomRoot;
+
+	// all "live" materials
+	this._materials = [];
+
+    ///////////////////////////////////////////////////////////////////////
+	// accessors
+    ///////////////////////////////////////////////////////////////////////
+	this.getZNear			= function()		{  return this._zNear;			}
+	this.getZFar			= function()		{  return this._zFar;			}
+	this.getFOV				= function()		{  return this._fov;			}
+	this.getAspect			= function()		{  return this._aspect;			}
+	this.getViewDistance	= function()		{  return this._viewDist;		}
+
+	this.get2DContext		= function()		{  return this._context;		}
+
+	this.getViewportWidth	= function()		{  return this._canvas.width;	}
+	this.getViewportHeight	= function()		{  return this._canvas.height;	}
+
+    ///////////////////////////////////////////////////////////////////////
+	// accessors
+    ///////////////////////////////////////////////////////////////////////
+	this.loadScene = function()
+	{
+		// parse the data
+		// the GL runtime must start with a "sceneData: "
+		var index = importStr.indexOf( "scenedata: " );
+		if (index >= 0)
+		{
+			this._useWebGL = true;
+
+			var rdgeStr = importStr.substr( index+11 );
+			var endIndex = rdgeStr.indexOf( "endscene\n" );
+			if (endIndex < 0)  throw new Error( "ill-formed WebGL data" );
+			var len = endIndex - index + 11;
+			rdgeStr = rdgeStr.substr( 0, endIndex );
+
+			this.myScene.importJSON( rdgeStr );
+			this.importObjects( importStr );
+			this.linkMaterials( this._geomRoot );
+			this.initMaterials();
+		}
+		else
+		{
+			this._context = this._canvas.getContext( "2d" );
+			this.importObjects( importStr );
+			this.render();
+		}
+	}
+
+	this.init = function()
+    { 
+		var ctx1 = g_Engine.ctxMan.handleToObject(this._canvas.rdgeCtxHandle),
+			ctx2 = g_Engine.getContext();
+		if (ctx1 != ctx2)  console.log( "***** different contexts *****" );
+		this.renderer = ctx1.renderer;
+      
+		// create a camera, set its perspective, and then point it at the origin
+		var cam = new camera();
+		this._camera = cam;
+		cam.setPerspective(this.getFOV(), this.getAspect(), this.getZNear(), this.getZFar());
+		cam.setLookAt([0, 0, this.getViewDistance()], [0, 0, 0], vec3.up());
+        
+		// make this camera the active camera
+		this.renderer.cameraManager().setActiveCamera(cam);
+
+		// change clear color
+		this.renderer.setClearColor([1.0, 1.0, 1.0, 0.0]);
+        
+		// create an empty scene graph
+		this.myScene = new SceneGraph();
+
+		// load the scene graph data
+		this.loadScene();
+        
+		// Add the scene to the engine - necessary if you want the engine to draw for you
+		var name = "myScene" + this._canvas.getAttribute( "data-RDGE-id" ); 
+		g_Engine.AddScene(name, this.myScene);
+
+		this._initialized = true;
+	}
+    
+	// main code for handling user interaction and updating the scene   
+	this.update = function(dt)
+    {
+		if (this._initialized)
+		{
+			if (!dt)  dt = 0.2;
+        
+			dt = 0.01;	// use our own internal throttle
+			this.elapsed += dt;
+        
+			// changed the global position uniform of light 0, another way to change behavior of a light
+			rdgeGlobalParameters.u_light0Pos.set( [5*Math.cos(this.elapsed), 5*Math.sin(this.elapsed), 20]);
+        
+			// orbit the light nodes around the boxes
+			//this.light.setPosition([1.2*Math.cos(this.elapsed*2.0), 1.2*Math.sin(this.elapsed*2.0), 1.2*Math.cos(this.elapsed*2.0)]);
+			//this.light2.setPosition([-1.2*Math.cos(this.elapsed*2.0), 1.2*Math.sin(this.elapsed*2.0), -1.2*Math.cos(this.elapsed)]);
+
+			this.updateMaterials();
+
+			// now update all the nodes in the scene
+			this.myScene.update(dt);
+		}
+    }
+
+	this.updateMaterials = function()
+	{
+		var nMats = this._materials.length;
+		for (var i=0;  i<nMats;  i++)
+		{
+			var mat = this._materials[i];
+			mat.update();
+		}
+	}
+
+    // defining the draw function to control how the scene is rendered      
+	this.draw = function()
+    {
+		if (this._initialized)
+		{
+			g_Engine.setContext( this._canvas.rdgeid );
+
+			var ctx = g_Engine.getContext();
+			var renderer = ctx.renderer;
+			if (renderer.unloadedTextureCount <= 0)
+			{
+				renderer.disableCulling();
+				renderer._clear();
+				this.myScene.render();
+
+				if (this._firstRender)
+				{
+					if (this._canvas.task)
+					{
+						this._firstRender = false;
+						//this._canvas.task.stop();
+					}
+				}
+			}
+		}
+    }
+
+	this.importObjects = function( importStr,  parent )
+	{
+		var index = importStr.indexOf( "OBJECT\n", 0 );
+		while (index >= 0)
+		{
+			// update the string to the current object
+			importStr = importStr.substr( index+7 );
+
+			// read the next object
+			var obj = this.importObject( importStr, parent );
+
+			// determine if we have children
+			var endIndex = importStr.indexOf( "ENDOBJECT\n" ),
+				childIndex = importStr.indexOf( "OBJECT\n" );
+			if (endIndex < 0)  throw new Error( "ill-formed object data" );
+			if ((childIndex >= 0) && (childIndex < endIndex))
+			{
+				importStr = importStr.substr( childIndex + 7 );
+				importStr = this.importObjects( importStr, obj );
+				endIndex = importStr.indexOf( "ENDOBJECT\n" )
+			}
+
+			// remove the string for the object(s) just created
+			importStr = importStr.substr( endIndex );
+
+			// get the location of the next object
+			index = importStr.indexOf( "OBJECT\n", endIndex );
+		}
+
+		return importStr;
+	}
+
+	this.importObject = function( objStr,  parent )
+	{
+		var type = Number( getPropertyFromString( "type: ", objStr ) );
+
+		var obj;
+		switch (type)
+		{
+			case 1:
+				obj = new RuntimeRectangle();
+				obj.import( objStr, parent );
+				break;
+
+			case 2:		// circle
+				obj = new RuntimeOval();
+				obj.import( objStr, parent );
+				break;
+
+			case 3:		// line
+				obj = new RuntimeLine();
+				obj.import( objStr, parent );
+				break;
+
+			default:
+				throw new Error( "Attempting to load unrecognized object type: " + type );
+				break;
+		}
+
+		if (obj)
+			this.addObject( obj );
+
+		return obj;
+	}
+
+	this.addObject = function( obj, parent )
+	{
+		if (!obj)  return;
+		obj.setWorld( this );
+
+		if (parent == null)
+			this._geomRoot = obj;
+		else
+			parent.addChild( obj );
+	}
+
+	this.linkMaterials = function( obj )
+	{
+		if (!obj)  return;
+
+		// get the array of materials from the object
+		var matArray = obj._materials;
+		var nMats = matArray.length;
+		for (var i=0;  i<nMats;  i++)
+		{
+			var mat = matArray[i];
+			var nodeName = mat._materialNodeName;
+			var matNode = this.findMaterialNode( nodeName, this.myScene.scene );
+			if (matNode)
+			{
+				mat._materialNode = matNode;
+				mat._shader = matNode.shaderProgram;
+				this._materials.push( mat );
+			}
+		}
+	}
+
+	this.initMaterials = function()
+	{
+		var nMats = this._materials.length;
+		for (var i=0;  i<nMats;  i++)
+		{
+			var mat = this._materials[i];
+			mat.init();
+		}
+	}
+
+	this.findMaterialNode = function( nodeName,  node )
+	{
+		if (node.transformNode)
+			node = node.transformNode;
+
+		if (node.materialNode)
+		{
+			if (nodeName === node.materialNode.name)  return node.materialNode;
+		}
+
+		if (node.children)
+		{
+			var nKids = node.children.length;
+			for (var i=0;  i<nKids;  i++)
+			{
+				var child = node.children[i];
+				var rtnNode = this.findMaterialNode( nodeName, child );
+				if (rtnNode)  return rtnNode;
+			}
+		}
+	}
+
+	this.render = function( obj )
+	{
+		if (!obj)  obj = this._geomRoot;
+		obj.render();
+
+		if (obj.children)
+		{
+			var nKids = obj.children.length;
+			for (var i=0;  i<nKids;  i++)
+			{
+				var child = obj.children[i];
+				if (child)
+					this.render( child );
+			}
+		}
+	}
+
+	// start RDGE or load Canvas 2D objects
+	var index = importStr.indexOf( "scenedata: " );
+	this._useWebGL = (index >= 0);
+	if (this._useWebGL)
+	{
+		var id = canvas.getAttribute( "data-RDGE-id" ); 
+		canvas.rdgeid = id;
+		g_Engine.registerCanvas(canvas, this);
+		RDGEStart( canvas );
+	}
+	else
+	{
+		this.loadScene();
+	}
+}
+
+
+if (typeof exports === "object") {
+    exports.GLRuntime = GLRuntime;
+}
+
+
+
-- 
cgit v1.2.3