force allocation of mesh data on creation ( messy code version )

2 files changed, 37 insertions, 5 deletions

diff --git a/OpenSim/Region/Physics/UbitMeshing/Mesh.cs b/OpenSim/Region/Physics/UbitMeshing/Mesh.cs
index c31ec08..a0a18c4 100644
--- a/OpenSim/Region/Physics/UbitMeshing/Mesh.cs
+++ b/OpenSim/Region/Physics/UbitMeshing/Mesh.cs
@@ -315,6 +315,32 @@ namespace OpenSim.Region.Physics.Meshing
             return result;
         }
 
+        public void PrepForOde()
+        {
+            // If there isn't an unmanaged array allocated yet, do it now
+            if (m_verticesPtr == IntPtr.Zero)
+            {
+                float[] vertexList = getVertexListAsFloat();
+                // Each vertex is 3 elements (floats)
+                m_vertexCount = vertexList.Length / 3;
+                int byteCount = m_vertexCount * 3 * sizeof(float);
+                m_verticesPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(byteCount);
+                System.Runtime.InteropServices.Marshal.Copy(vertexList, 0, m_verticesPtr, m_vertexCount * 3);
+            }
+
+            // If there isn't an unmanaged array allocated yet, do it now
+            if (m_indicesPtr == IntPtr.Zero)
+            {
+                int[] indexList = getIndexListAsInt();
+                m_indexCount = indexList.Length;
+                int byteCount = m_indexCount * sizeof(int);
+                m_indicesPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(byteCount);
+                System.Runtime.InteropServices.Marshal.Copy(indexList, 0, m_indicesPtr, m_indexCount);
+            }
+
+            releaseSourceMeshData();
+        }
+
         public void getVertexListAsPtrToFloatArray(out IntPtr vertices, out int vertexStride, out int vertexCount)
         {
             // A vertex is 3 floats
diff --git a/OpenSim/Region/Physics/UbitMeshing/Meshmerizer.cs b/OpenSim/Region/Physics/UbitMeshing/Meshmerizer.cs
index fabadd3..dec5eb7 100644
--- a/OpenSim/Region/Physics/UbitMeshing/Meshmerizer.cs
+++ b/OpenSim/Region/Physics/UbitMeshing/Meshmerizer.cs
@@ -993,12 +993,12 @@ namespace OpenSim.Region.Physics.Meshing
 
         public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod)
         {
-            return CreateMesh(primName, primShape, size, lod, false,false);
+            return CreateMesh(primName, primShape, size, lod, false,false,false);
         }
 
         public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod, bool isPhysical)
         {
-            return CreateMesh(primName, primShape, size, lod, false,false);
+            return CreateMesh(primName, primShape, size, lod, false,false,false);
         }
 
         private static Vector3 m_MeshUnitSize = new Vector3(0.5f, 0.5f, 0.5f);
@@ -1039,7 +1039,7 @@ namespace OpenSim.Region.Physics.Meshing
             return null;
         }
 
-        public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod, bool isPhysical, bool convex)
+        public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod, bool isPhysical, bool convex, bool forOde)
         {
 #if SPAM
             m_log.DebugFormat("[MESH]: Creating mesh for {0}", primName);
@@ -1094,8 +1094,14 @@ namespace OpenSim.Region.Physics.Meshing
                     mesh.DumpRaw(baseDir, primName, "Z extruded");
                 }
 
-                // trim the vertex and triangle lists to free up memory
-                mesh.TrimExcess();
+                if (forOde)
+                {
+                    // force pinned mem allocation
+                    mesh.PrepForOde();
+                }
+                else
+                    mesh.TrimExcess();
+
                 mesh.Key = key;
                 mesh.RefCount = 1;