From cdd903c1733ab813897e7bb8510d44d452238285 Mon Sep 17 00:00:00 2001
From: Teravus Ovares
Date: Mon, 12 Nov 2007 12:43:01 +0000
Subject: * Applied Gerhard's Meshing patch (Thanks! Gerhard) * Addition of
 Gerhard's ZeroMesher. * Addition of meshing OpenSim.ini parameter * Some
 modifications to the Meshmerizer * Meshmerizer set to default meshing plugin
 because ZeroMesher needs a memory locking fix.  We'll switch it back after
 the memory locking issue is resolved.

---
 .../Region/Physics/Manager/PhysicsPluginManager.cs | 10 +++
 OpenSim/Region/Physics/Manager/ZeroMesher.cs       | 74 ++++++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 OpenSim/Region/Physics/Manager/ZeroMesher.cs

(limited to 'OpenSim/Region/Physics')

diff --git a/OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs b/OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs
index 47c8ae0..694a845 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs
@@ -88,6 +88,15 @@ namespace OpenSim.Region.Physics.Manager
 
         public void LoadPlugins()
         {
+
+            // Load "plugins", that are hard coded and not existing in form of an external lib
+            IMeshingPlugin plugHard;
+            plugHard = new ZeroMesherPlugin();
+            _MeshPlugins.Add(plugHard.GetName(), plugHard);
+            MainLog.Instance.Verbose("PHYSICS", "Added meshing engine: " + plugHard.GetName());
+            
+            // And now walk all assemblies (DLLs effectively) and see if they are home 
+            // of a plugin that is of interest for us
             string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Physics");
             string[] pluginFiles = Directory.GetFiles(path, "*.dll");
 
@@ -100,6 +109,7 @@ namespace OpenSim.Region.Physics.Manager
 
         private void AddPlugin(string FileName)
         {
+
             Assembly pluginAssembly = Assembly.LoadFrom(FileName);
 
             foreach (Type pluginType in pluginAssembly.GetTypes())
diff --git a/OpenSim/Region/Physics/Manager/ZeroMesher.cs b/OpenSim/Region/Physics/Manager/ZeroMesher.cs
new file mode 100644
index 0000000..dafc1c8
--- /dev/null
+++ b/OpenSim/Region/Physics/Manager/ZeroMesher.cs
@@ -0,0 +1,74 @@
+/*
+* Copyright (c) Contributors, http://opensimulator.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* 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 the OpenSim Project 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 DEVELOPERS 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 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.
+* 
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenSim.Framework;
+
+
+/*
+ * This is the zero mesher.
+ * Whatever you want him to mesh, he can't, telling you that by responding with a null pointer.
+ * Effectivly this is for switching off meshing and for testing as each physics machine should deal 
+ * with the null pointer situation.
+ * But it's also a convenience thing, as physics machines can rely on having a mesher in any situation, even 
+ * if it's a dump one like this.
+ * Note, that this mesher is *not* living in a module but in the manager itself, so
+ * it's always availabe and thus the default in case of configuration errors
+*/
+
+namespace OpenSim.Region.Physics.Manager
+{
+    public class ZeroMesherPlugin : IMeshingPlugin
+    {
+        public ZeroMesherPlugin()
+        {
+        }
+
+        public string GetName()
+        {
+            return "ZeroMesher";
+        }
+
+        public IMesher GetMesher()
+        {
+            return new ZeroMesher();
+        }
+    }
+
+    public class ZeroMesher: IMesher
+    {
+
+        public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, PhysicsVector size)
+        {
+            return null;
+        }
+    }
+
+}
-- 
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