From bcdd03c1cfcfab72d6ee4199bd1232ff3a748d6e Mon Sep 17 00:00:00 2001
From: dahlia
Date: Thu, 14 Oct 2010 20:25:31 -0700
Subject: more work in progress on mesh physics - still non-functional

---
 OpenSim/Region/Physics/Meshing/Meshmerizer.cs | 69 ++++++++++++++++++++++++++-
 bin/OpenMetaverse.StructuredData.XML          | 28 +++--------
 prebuild.xml                                  |  2 +
 3 files changed, 75 insertions(+), 24 deletions(-)

diff --git a/OpenSim/Region/Physics/Meshing/Meshmerizer.cs b/OpenSim/Region/Physics/Meshing/Meshmerizer.cs
index e1203ea..df44be3 100644
--- a/OpenSim/Region/Physics/Meshing/Meshmerizer.cs
+++ b/OpenSim/Region/Physics/Meshing/Meshmerizer.cs
@@ -30,9 +30,11 @@ using System;
 using System.Collections.Generic;
 using OpenSim.Framework;
 using OpenSim.Region.Physics.Manager;
-using OpenMetaverse;
+using OpenMetaverse;
+using OpenMetaverse.StructuredData;
 using System.Drawing;
-using System.Drawing.Imaging;
+using System.Drawing.Imaging;
+using System.IO.Compression;
 using PrimMesher;
 using log4net;
 using Nini.Config;
@@ -268,6 +270,69 @@ namespace OpenSim.Region.Physics.Meshing
                 {
                     // add code for mesh physics proxy generation here
                     m_log.Debug("[MESH]: mesh proxy generation not implemented yet ");
+
+                    OSD meshOsd;
+
+                    if (primShape.SculptData.Length > 0)
+                    {
+                        
+                        
+                        m_log.Debug("[MESH]: asset data length: " + primShape.SculptData.Length.ToString());
+                        byte[] header = Util.StringToBytes256("<? LLSD/Binary ?>");
+
+                        ////dump to debugging file
+                        //string filename = System.IO.Path.Combine(decodedSculptMapPath, "mesh_" + primShape.SculptTexture.ToString());
+                        //BinaryWriter writer = new BinaryWriter(File.Open(filename, FileMode.Create));
+                        //writer.Write(primShape.SculptData);
+                        //writer.Close();
+
+                    }
+                    else
+                    {
+                        m_log.Error("[MESH]: asset data is zero length");
+                        return null;
+                    }
+
+                    try
+                    {
+                        meshOsd = OSDParser.DeserializeLLSDBinary(primShape.SculptData, true);
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.Error("[MESH]: exception decoding mesh asset: " + e.ToString());
+                        return null;
+                    }
+
+                    if (meshOsd is OSDMap)
+                    {
+                        OSDMap map = (OSDMap)meshOsd;
+                        //foreach (string name in map.Keys)
+                        //    m_log.Debug("[MESH]: key:" + name + " value:" + map[name].AsString());
+                        OSDMap physicsParms = (OSDMap)map["physics_shape"];
+                        int physOffset = physicsParms["offset"].AsInteger();
+                        int physSize = physicsParms["size"].AsInteger();
+
+                        if (physOffset < 0 || physSize == 0)
+                            return null; // no mesh data in asset
+
+                        m_log.Debug("[MESH]: physOffset:" + physOffset.ToString() + " physSize:" + physSize.ToString());
+                        //MemoryStream ms = new MemoryStream(primShape.SculptData, physOffset, physSize);
+                        //GZipStream gzStream = new GZipStream(ms, CompressionMode.Decompress);
+                        
+                        //int maxSize = physSize * 5; // arbitrary guess
+                        //byte[] readBuffer = new byte[maxSize];
+
+                        //int bytesRead = gzStream.Read(readBuffer, 0, maxSize);
+
+                        //OSD physMeshOsd = OSDParser.DeserializeLLSDBinary(readBuffer);
+
+
+
+
+
+                    }
+
+                    //just bail out for now until mesh code is finished
                     return null;
 
                 }
diff --git a/bin/OpenMetaverse.StructuredData.XML b/bin/OpenMetaverse.StructuredData.XML
index 35f2864..2a0426c 100644
--- a/bin/OpenMetaverse.StructuredData.XML
+++ b/bin/OpenMetaverse.StructuredData.XML
@@ -135,33 +135,17 @@
         </member>
         <member name="M:OpenMetaverse.StructuredData.OSDParser.DeserializeLLSDBinary(System.Byte[])">
             <summary>
-            Deserializes binary LLSD
-            </summary>
-            <param name="binaryData">Serialized data</param>
-            <returns>OSD containting deserialized data</returns>
-        </member>
-        <member name="M:OpenMetaverse.StructuredData.OSDParser.DeserializeLLSDBinary(System.Byte[],System.Boolean)">
-            <summary>
-            Deserializes binary LLSD
+            
             </summary>
-            <param name="binaryData">Serialized data</param>
-            <param name="headerOptional">Treat LLSD binary header as optional</param>
-            <returns>OSD containting deserialized data</returns>
+            <param name="binaryData"></param>
+            <returns></returns>
         </member>
         <member name="M:OpenMetaverse.StructuredData.OSDParser.DeserializeLLSDBinary(System.IO.Stream)">
             <summary>
-            Deserializes binary LLSD
-            </summary>
-            <param name="stream">Stream to read the data from</param>
-            <returns>OSD containting deserialized data</returns>
-        </member>
-        <member name="M:OpenMetaverse.StructuredData.OSDParser.DeserializeLLSDBinary(System.IO.Stream,System.Boolean)">
-            <summary>
-            Deserializes binary LLSD
+            
             </summary>
-            <param name="stream">Stream to read the data from</param>
-            <param name="headerOptional">Treat LLSD binary header as optional</param>
-            <returns>OSD containting deserialized data</returns>
+            <param name="stream"></param>
+            <returns></returns>
         </member>
         <member name="M:OpenMetaverse.StructuredData.OSDParser.SerializeLLSDBinary(OpenMetaverse.StructuredData.OSD)">
             <summary>
diff --git a/prebuild.xml b/prebuild.xml
index abe6934..cc0424a 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -587,9 +587,11 @@
       <ReferencePath>../../../../bin/</ReferencePath>
       <Reference name="System"/>
       <Reference name="System.Drawing"/>
+      <Reference name="System.IO.Compression;"/>
       <Reference name="CSJ2K" path="../../../../bin/"/>
       <Reference name="OpenMetaverseTypes" path="../../../../bin/"/>
       <Reference name="OpenMetaverse" path="../../../../bin/"/>
+      <Reference name="OpenMetaverse.StructuredData" path="../../../../bin/"/>
       <Reference name="Nini" path="../../../../bin/"/>
       <Reference name="OpenSim.Framework"/>
       <Reference name="OpenSim.Framework.Console"/>
-- 
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