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|
/*
* 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 OpenSimulator 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.
*/
//#define SPAM
using System;
using System.Collections.Generic;
using OpenSim.Framework;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.PhysicsModules.SharedBase;
using OpenSim.Region.PhysicsModule.ConvexDecompositionDotNet;
using OpenMetaverse;
using OpenMetaverse.StructuredData;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO.Compression;
using PrimMesher;
using log4net;
using Nini.Config;
using System.Reflection;
using System.IO;
using ComponentAce.Compression.Libs.zlib;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using Mono.Addins;
namespace OpenSim.Region.PhysicsModule.UbitMeshing
{
[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "UbitMeshmerizer")]
public class UbitMeshmerizer : IMesher, INonSharedRegionModule
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
// Setting baseDir to a path will enable the dumping of raw files
// raw files can be imported by blender so a visual inspection of the results can be done
private bool m_Enabled = false;
public object diskLock = new object();
public bool doMeshFileCache = true;
public string cachePath = "MeshCache";
public TimeSpan CacheExpire;
public bool doCacheExpire = true;
// const string baseDir = "rawFiles";
private const string baseDir = null; //"rawFiles";
private bool useMeshiesPhysicsMesh = false;
private float minSizeForComplexMesh = 0.2f; // prims with all dimensions smaller than this will have a bounding box mesh
private Dictionary<AMeshKey, Mesh> m_uniqueMeshes = new Dictionary<AMeshKey, Mesh>();
private Dictionary<AMeshKey, Mesh> m_uniqueReleasedMeshes = new Dictionary<AMeshKey, Mesh>();
#region INonSharedRegionModule
public string Name
{
get { return "UbitMeshmerizer"; }
}
public Type ReplaceableInterface
{
get { return null; }
}
public void Initialise(IConfigSource config)
{
IConfig start_config = config.Configs["Startup"];
IConfig mesh_config = config.Configs["Mesh"];
string mesher = start_config.GetString("meshing", string.Empty);
if (mesher == Name)
{
float fcache = 48.0f;
// float fcache = 0.02f;
if (mesh_config != null)
{
useMeshiesPhysicsMesh = mesh_config.GetBoolean("UseMeshiesPhysicsMesh", useMeshiesPhysicsMesh);
if (useMeshiesPhysicsMesh)
{
doMeshFileCache = mesh_config.GetBoolean("MeshFileCache", doMeshFileCache);
cachePath = mesh_config.GetString("MeshFileCachePath", cachePath);
fcache = mesh_config.GetFloat("MeshFileCacheExpireHours", fcache);
doCacheExpire = mesh_config.GetBoolean("MeshFileCacheDoExpire", doCacheExpire);
}
else
{
doMeshFileCache = false;
doCacheExpire = false;
}
m_Enabled = true;
}
CacheExpire = TimeSpan.FromHours(fcache);
}
}
public void Close()
{
}
public void AddRegion(Scene scene)
{
if (!m_Enabled)
return;
scene.RegisterModuleInterface<IMesher>(this);
}
public void RemoveRegion(Scene scene)
{
if (!m_Enabled)
return;
scene.UnregisterModuleInterface<IMesher>(this);
}
public void RegionLoaded(Scene scene)
{
if (!m_Enabled)
return;
}
#endregion
/// <summary>
/// creates a simple box mesh of the specified size. This mesh is of very low vertex count and may
/// be useful as a backup proxy when level of detail is not needed or when more complex meshes fail
/// for some reason
/// </summary>
/// <param name="minX"></param>
/// <param name="maxX"></param>
/// <param name="minY"></param>
/// <param name="maxY"></param>
/// <param name="minZ"></param>
/// <param name="maxZ"></param>
/// <returns></returns>
private static Mesh CreateSimpleBoxMesh(float minX, float maxX, float minY, float maxY, float minZ, float maxZ)
{
Mesh box = new Mesh();
List<Vertex> vertices = new List<Vertex>();
// bottom
vertices.Add(new Vertex(minX, maxY, minZ));
vertices.Add(new Vertex(maxX, maxY, minZ));
vertices.Add(new Vertex(maxX, minY, minZ));
vertices.Add(new Vertex(minX, minY, minZ));
box.Add(new Triangle(vertices[0], vertices[1], vertices[2]));
box.Add(new Triangle(vertices[0], vertices[2], vertices[3]));
// top
vertices.Add(new Vertex(maxX, maxY, maxZ));
vertices.Add(new Vertex(minX, maxY, maxZ));
vertices.Add(new Vertex(minX, minY, maxZ));
vertices.Add(new Vertex(maxX, minY, maxZ));
box.Add(new Triangle(vertices[4], vertices[5], vertices[6]));
box.Add(new Triangle(vertices[4], vertices[6], vertices[7]));
// sides
box.Add(new Triangle(vertices[5], vertices[0], vertices[3]));
box.Add(new Triangle(vertices[5], vertices[3], vertices[6]));
box.Add(new Triangle(vertices[1], vertices[0], vertices[5]));
box.Add(new Triangle(vertices[1], vertices[5], vertices[4]));
box.Add(new Triangle(vertices[7], vertices[1], vertices[4]));
box.Add(new Triangle(vertices[7], vertices[2], vertices[1]));
box.Add(new Triangle(vertices[3], vertices[2], vertices[7]));
box.Add(new Triangle(vertices[3], vertices[7], vertices[6]));
return box;
}
/// <summary>
/// Creates a simple bounding box mesh for a complex input mesh
/// </summary>
/// <param name="meshIn"></param>
/// <returns></returns>
private static Mesh CreateBoundingBoxMesh(Mesh meshIn)
{
float minX = float.MaxValue;
float maxX = float.MinValue;
float minY = float.MaxValue;
float maxY = float.MinValue;
float minZ = float.MaxValue;
float maxZ = float.MinValue;
foreach (Vector3 v in meshIn.getVertexList())
{
if (v.X < minX) minX = v.X;
if (v.Y < minY) minY = v.Y;
if (v.Z < minZ) minZ = v.Z;
if (v.X > maxX) maxX = v.X;
if (v.Y > maxY) maxY = v.Y;
if (v.Z > maxZ) maxZ = v.Z;
}
return CreateSimpleBoxMesh(minX, maxX, minY, maxY, minZ, maxZ);
}
private void ReportPrimError(string message, string primName, PrimMesh primMesh)
{
m_log.Error(message);
m_log.Error("\nPrim Name: " + primName);
m_log.Error("****** PrimMesh Parameters ******\n" + primMesh.ParamsToDisplayString());
}
/// <summary>
/// Add a submesh to an existing list of coords and faces.
/// </summary>
/// <param name="subMeshData"></param>
/// <param name="size">Size of entire object</param>
/// <param name="coords"></param>
/// <param name="faces"></param>
private void AddSubMesh(OSDMap subMeshData, List<Coord> coords, List<Face> faces)
{
// Console.WriteLine("subMeshMap for {0} - {1}", primName, Util.GetFormattedXml((OSD)subMeshMap));
// As per http://wiki.secondlife.com/wiki/Mesh/Mesh_Asset_Format, some Mesh Level
// of Detail Blocks (maps) contain just a NoGeometry key to signal there is no
// geometry for this submesh.
if (subMeshData.ContainsKey("NoGeometry") && ((OSDBoolean)subMeshData["NoGeometry"]))
return;
OpenMetaverse.Vector3 posMax;
OpenMetaverse.Vector3 posMin;
if (subMeshData.ContainsKey("PositionDomain"))
{
posMax = ((OSDMap)subMeshData["PositionDomain"])["Max"].AsVector3();
posMin = ((OSDMap)subMeshData["PositionDomain"])["Min"].AsVector3();
}
else
{
posMax = new Vector3(0.5f, 0.5f, 0.5f);
posMin = new Vector3(-0.5f, -0.5f, -0.5f);
}
ushort faceIndexOffset = (ushort)coords.Count;
byte[] posBytes = subMeshData["Position"].AsBinary();
for (int i = 0; i < posBytes.Length; i += 6)
{
ushort uX = Utils.BytesToUInt16(posBytes, i);
ushort uY = Utils.BytesToUInt16(posBytes, i + 2);
ushort uZ = Utils.BytesToUInt16(posBytes, i + 4);
Coord c = new Coord(
Utils.UInt16ToFloat(uX, posMin.X, posMax.X),
Utils.UInt16ToFloat(uY, posMin.Y, posMax.Y),
Utils.UInt16ToFloat(uZ, posMin.Z, posMax.Z));
coords.Add(c);
}
byte[] triangleBytes = subMeshData["TriangleList"].AsBinary();
for (int i = 0; i < triangleBytes.Length; i += 6)
{
ushort v1 = (ushort)(Utils.BytesToUInt16(triangleBytes, i) + faceIndexOffset);
ushort v2 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 2) + faceIndexOffset);
ushort v3 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 4) + faceIndexOffset);
Face f = new Face(v1, v2, v3);
faces.Add(f);
}
}
/// <summary>
/// Create a physics mesh from data that comes with the prim. The actual data used depends on the prim type.
/// </summary>
/// <param name="primName"></param>
/// <param name="primShape"></param>
/// <param name="size"></param>
/// <param name="lod"></param>
/// <returns></returns>
private Mesh CreateMeshFromPrimMesher(string primName, PrimitiveBaseShape primShape, float lod, bool convex)
{
// m_log.DebugFormat(
// "[MESH]: Creating physics proxy for {0}, shape {1}",
// primName, (OpenMetaverse.SculptType)primShape.SculptType);
List<Coord> coords;
List<Face> faces;
if (primShape.SculptEntry)
{
if (((OpenMetaverse.SculptType)primShape.SculptType) == SculptType.Mesh)
{
if (!useMeshiesPhysicsMesh)
return null;
if (!GenerateCoordsAndFacesFromPrimMeshData(primName, primShape, out coords, out faces, convex))
return null;
}
else
{
if (!GenerateCoordsAndFacesFromPrimSculptData(primName, primShape, lod, out coords, out faces))
return null;
}
}
else
{
if (!GenerateCoordsAndFacesFromPrimShapeData(primName, primShape, lod, out coords, out faces))
return null;
}
primShape.SculptData = Utils.EmptyBytes;
int numCoords = coords.Count;
int numFaces = faces.Count;
Mesh mesh = new Mesh();
// Add the corresponding triangles to the mesh
for (int i = 0; i < numFaces; i++)
{
Face f = faces[i];
mesh.Add(new Triangle(coords[f.v1].X, coords[f.v1].Y, coords[f.v1].Z,
coords[f.v2].X, coords[f.v2].Y, coords[f.v2].Z,
coords[f.v3].X, coords[f.v3].Y, coords[f.v3].Z));
}
coords.Clear();
faces.Clear();
return mesh;
}
/// <summary>
/// Generate the co-ords and faces necessary to construct a mesh from the mesh data the accompanies a prim.
/// </summary>
/// <param name="primName"></param>
/// <param name="primShape"></param>
/// <param name="size"></param>
/// <param name="coords">Coords are added to this list by the method.</param>
/// <param name="faces">Faces are added to this list by the method.</param>
/// <returns>true if coords and faces were successfully generated, false if not</returns>
private bool GenerateCoordsAndFacesFromPrimMeshData(
string primName, PrimitiveBaseShape primShape, out List<Coord> coords, out List<Face> faces, bool convex)
{
// m_log.DebugFormat("[MESH]: experimental mesh proxy generation for {0}", primName);
bool usemesh = false;
coords = new List<Coord>();
faces = new List<Face>();
OSD meshOsd = null;
if (primShape.SculptData.Length <= 0)
{
// m_log.InfoFormat("[MESH]: asset data for {0} is zero length", primName);
return false;
}
long start = 0;
using (MemoryStream data = new MemoryStream(primShape.SculptData))
{
try
{
OSD osd = OSDParser.DeserializeLLSDBinary(data);
if (osd is OSDMap)
meshOsd = (OSDMap)osd;
else
{
m_log.Warn("[Mesh}: unable to cast mesh asset to OSDMap");
return false;
}
}
catch (Exception e)
{
m_log.Error("[MESH]: Exception deserializing mesh asset header:" + e.ToString());
}
start = data.Position;
}
if (meshOsd is OSDMap)
{
OSDMap physicsParms = null;
OSDMap map = (OSDMap)meshOsd;
if (!convex)
{
if (map.ContainsKey("physics_shape"))
physicsParms = (OSDMap)map["physics_shape"]; // old asset format
else if (map.ContainsKey("physics_mesh"))
physicsParms = (OSDMap)map["physics_mesh"]; // new asset format
if (physicsParms != null)
usemesh = true;
}
if(!usemesh && (map.ContainsKey("physics_convex")))
physicsParms = (OSDMap)map["physics_convex"];
if (physicsParms == null)
{
m_log.Warn("[MESH]: unknown mesh type");
return false;
}
int physOffset = physicsParms["offset"].AsInteger() + (int)start;
int physSize = physicsParms["size"].AsInteger();
if (physOffset < 0 || physSize == 0)
return false; // no mesh data in asset
OSD decodedMeshOsd = new OSD();
byte[] meshBytes = new byte[physSize];
System.Buffer.BlockCopy(primShape.SculptData, physOffset, meshBytes, 0, physSize);
try
{
using (MemoryStream inMs = new MemoryStream(meshBytes))
{
using (MemoryStream outMs = new MemoryStream())
{
using (ZOutputStream zOut = new ZOutputStream(outMs))
{
byte[] readBuffer = new byte[2048];
int readLen = 0;
while ((readLen = inMs.Read(readBuffer, 0, readBuffer.Length)) > 0)
{
zOut.Write(readBuffer, 0, readLen);
}
zOut.Flush();
outMs.Seek(0, SeekOrigin.Begin);
byte[] decompressedBuf = outMs.GetBuffer();
decodedMeshOsd = OSDParser.DeserializeLLSDBinary(decompressedBuf);
}
}
}
}
catch (Exception e)
{
m_log.Error("[MESH]: exception decoding physical mesh: " + e.ToString());
return false;
}
if (usemesh)
{
OSDArray decodedMeshOsdArray = null;
// physics_shape is an array of OSDMaps, one for each submesh
if (decodedMeshOsd is OSDArray)
{
// Console.WriteLine("decodedMeshOsd for {0} - {1}", primName, Util.GetFormattedXml(decodedMeshOsd));
decodedMeshOsdArray = (OSDArray)decodedMeshOsd;
foreach (OSD subMeshOsd in decodedMeshOsdArray)
{
if (subMeshOsd is OSDMap)
AddSubMesh(subMeshOsd as OSDMap, coords, faces);
}
}
}
else
{
OSDMap cmap = (OSDMap)decodedMeshOsd;
if (cmap == null)
return false;
byte[] data;
List<float3> vs = new List<float3>();
PHullResult hullr = new PHullResult();
float3 f3;
Coord c;
Face f;
Vector3 range;
Vector3 min;
const float invMaxU16 = 1.0f / 65535f;
int t1;
int t2;
int t3;
int i;
int nverts;
int nindexs;
if (cmap.ContainsKey("Max"))
range = cmap["Max"].AsVector3();
else
range = new Vector3(0.5f, 0.5f, 0.5f);
if (cmap.ContainsKey("Min"))
min = cmap["Min"].AsVector3();
else
min = new Vector3(-0.5f, -0.5f, -0.5f);
range = range - min;
range *= invMaxU16;
if (!convex && cmap.ContainsKey("HullList") && cmap.ContainsKey("Positions"))
{
List<int> hsizes = new List<int>();
int totalpoints = 0;
data = cmap["HullList"].AsBinary();
for (i = 0; i < data.Length; i++)
{
t1 = data[i];
if (t1 == 0)
t1 = 256;
totalpoints += t1;
hsizes.Add(t1);
}
data = cmap["Positions"].AsBinary();
int ptr = 0;
int vertsoffset = 0;
if (totalpoints == data.Length / 6) // 2 bytes per coord, 3 coords per point
{
foreach (int hullsize in hsizes)
{
for (i = 0; i < hullsize; i++ )
{
t1 = data[ptr++];
t1 += data[ptr++] << 8;
t2 = data[ptr++];
t2 += data[ptr++] << 8;
t3 = data[ptr++];
t3 += data[ptr++] << 8;
f3 = new float3((t1 * range.X + min.X),
(t2 * range.Y + min.Y),
(t3 * range.Z + min.Z));
vs.Add(f3);
}
if(hullsize <3)
{
vs.Clear();
continue;
}
if (hullsize <5)
{
foreach (float3 point in vs)
{
c.X = point.x;
c.Y = point.y;
c.Z = point.z;
coords.Add(c);
}
f = new Face(vertsoffset, vertsoffset + 1, vertsoffset + 2);
faces.Add(f);
if (hullsize == 4)
{
// not sure about orientation..
f = new Face(vertsoffset, vertsoffset + 2, vertsoffset + 3);
faces.Add(f);
f = new Face(vertsoffset, vertsoffset + 3, vertsoffset + 1);
faces.Add(f);
f = new Face(vertsoffset + 3, vertsoffset + 2, vertsoffset + 1);
faces.Add(f);
}
vertsoffset += vs.Count;
vs.Clear();
continue;
}
if (!HullUtils.ComputeHull(vs, ref hullr, 0, 0.0f))
{
vs.Clear();
continue;
}
nverts = hullr.Vertices.Count;
nindexs = hullr.Indices.Count;
if (nindexs % 3 != 0)
{
vs.Clear();
continue;
}
for (i = 0; i < nverts; i++)
{
c.X = hullr.Vertices[i].x;
c.Y = hullr.Vertices[i].y;
c.Z = hullr.Vertices[i].z;
coords.Add(c);
}
for (i = 0; i < nindexs; i += 3)
{
t1 = hullr.Indices[i];
if (t1 > nverts)
break;
t2 = hullr.Indices[i + 1];
if (t2 > nverts)
break;
t3 = hullr.Indices[i + 2];
if (t3 > nverts)
break;
f = new Face(vertsoffset + t1, vertsoffset + t2, vertsoffset + t3);
faces.Add(f);
}
vertsoffset += nverts;
vs.Clear();
}
}
if (coords.Count > 0 && faces.Count > 0)
return true;
}
vs.Clear();
if (cmap.ContainsKey("BoundingVerts"))
{
data = cmap["BoundingVerts"].AsBinary();
for (i = 0; i < data.Length; )
{
t1 = data[i++];
t1 += data[i++] << 8;
t2 = data[i++];
t2 += data[i++] << 8;
t3 = data[i++];
t3 += data[i++] << 8;
f3 = new float3((t1 * range.X + min.X),
(t2 * range.Y + min.Y),
(t3 * range.Z + min.Z));
vs.Add(f3);
}
if (vs.Count < 3)
{
vs.Clear();
return false;
}
if (vs.Count < 5)
{
foreach (float3 point in vs)
{
c.X = point.x;
c.Y = point.y;
c.Z = point.z;
coords.Add(c);
}
f = new Face(0, 1, 2);
faces.Add(f);
if (vs.Count == 4)
{
f = new Face(0, 2, 3);
faces.Add(f);
f = new Face(0, 3, 1);
faces.Add(f);
f = new Face( 3, 2, 1);
faces.Add(f);
}
vs.Clear();
return true;
}
if (!HullUtils.ComputeHull(vs, ref hullr, 0, 0.0f))
return false;
nverts = hullr.Vertices.Count;
nindexs = hullr.Indices.Count;
if (nindexs % 3 != 0)
return false;
for (i = 0; i < nverts; i++)
{
c.X = hullr.Vertices[i].x;
c.Y = hullr.Vertices[i].y;
c.Z = hullr.Vertices[i].z;
coords.Add(c);
}
for (i = 0; i < nindexs; i += 3)
{
t1 = hullr.Indices[i];
if (t1 > nverts)
break;
t2 = hullr.Indices[i + 1];
if (t2 > nverts)
break;
t3 = hullr.Indices[i + 2];
if (t3 > nverts)
break;
f = new Face(t1, t2, t3);
faces.Add(f);
}
if (coords.Count > 0 && faces.Count > 0)
return true;
}
else
return false;
}
}
return true;
}
/// <summary>
/// Generate the co-ords and faces necessary to construct a mesh from the sculpt data the accompanies a prim.
/// </summary>
/// <param name="primName"></param>
/// <param name="primShape"></param>
/// <param name="size"></param>
/// <param name="lod"></param>
/// <param name="coords">Coords are added to this list by the method.</param>
/// <param name="faces">Faces are added to this list by the method.</param>
/// <returns>true if coords and faces were successfully generated, false if not</returns>
private bool GenerateCoordsAndFacesFromPrimSculptData(
string primName, PrimitiveBaseShape primShape, float lod, out List<Coord> coords, out List<Face> faces)
{
coords = new List<Coord>();
faces = new List<Face>();
PrimMesher.SculptMesh sculptMesh;
Image idata = null;
if (primShape.SculptData == null || primShape.SculptData.Length == 0)
return false;
try
{
OpenMetaverse.Imaging.ManagedImage unusedData;
OpenMetaverse.Imaging.OpenJPEG.DecodeToImage(primShape.SculptData, out unusedData, out idata);
unusedData = null;
if (idata == null)
{
// In some cases it seems that the decode can return a null bitmap without throwing
// an exception
m_log.WarnFormat("[PHYSICS]: OpenJPEG decoded sculpt data for {0} to a null bitmap. Ignoring.", primName);
return false;
}
}
catch (DllNotFoundException)
{
m_log.Error("[PHYSICS]: OpenJpeg is not installed correctly on this system. Physics Proxy generation failed. Often times this is because of an old version of GLIBC. You must have version 2.4 or above!");
return false;
}
catch (IndexOutOfRangeException)
{
m_log.Error("[PHYSICS]: OpenJpeg was unable to decode this. Physics Proxy generation failed");
return false;
}
catch (Exception ex)
{
m_log.Error("[PHYSICS]: Unable to generate a Sculpty physics proxy. Sculpty texture decode failed: " + ex.Message);
return false;
}
PrimMesher.SculptMesh.SculptType sculptType;
// remove mirror and invert bits
OpenMetaverse.SculptType pbsSculptType = ((OpenMetaverse.SculptType)(primShape.SculptType & 0x3f));
switch (pbsSculptType)
{
case OpenMetaverse.SculptType.Cylinder:
sculptType = PrimMesher.SculptMesh.SculptType.cylinder;
break;
case OpenMetaverse.SculptType.Plane:
sculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
case OpenMetaverse.SculptType.Torus:
sculptType = PrimMesher.SculptMesh.SculptType.torus;
break;
case OpenMetaverse.SculptType.Sphere:
sculptType = PrimMesher.SculptMesh.SculptType.sphere;
break;
default:
sculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
}
bool mirror = ((primShape.SculptType & 128) != 0);
bool invert = ((primShape.SculptType & 64) != 0);
sculptMesh = new PrimMesher.SculptMesh((Bitmap)idata, sculptType, (int)lod, mirror, invert);
idata.Dispose();
// sculptMesh.DumpRaw(baseDir, primName, "primMesh");
coords = sculptMesh.coords;
faces = sculptMesh.faces;
return true;
}
/// <summary>
/// Generate the co-ords and faces necessary to construct a mesh from the shape data the accompanies a prim.
/// </summary>
/// <param name="primName"></param>
/// <param name="primShape"></param>
/// <param name="size"></param>
/// <param name="coords">Coords are added to this list by the method.</param>
/// <param name="faces">Faces are added to this list by the method.</param>
/// <returns>true if coords and faces were successfully generated, false if not</returns>
private bool GenerateCoordsAndFacesFromPrimShapeData(
string primName, PrimitiveBaseShape primShape, float lod, out List<Coord> coords, out List<Face> faces)
{
PrimMesh primMesh;
coords = new List<Coord>();
faces = new List<Face>();
float pathShearX = primShape.PathShearX < 128 ? (float)primShape.PathShearX * 0.01f : (float)(primShape.PathShearX - 256) * 0.01f;
float pathShearY = primShape.PathShearY < 128 ? (float)primShape.PathShearY * 0.01f : (float)(primShape.PathShearY - 256) * 0.01f;
float pathBegin = (float)primShape.PathBegin * 2.0e-5f;
float pathEnd = 1.0f - (float)primShape.PathEnd * 2.0e-5f;
float pathScaleX = (float)(primShape.PathScaleX - 100) * 0.01f;
float pathScaleY = (float)(primShape.PathScaleY - 100) * 0.01f;
float profileBegin = (float)primShape.ProfileBegin * 2.0e-5f;
float profileEnd = 1.0f - (float)primShape.ProfileEnd * 2.0e-5f;
if (profileBegin < 0.0f)
profileBegin = 0.0f;
if (profileEnd < 0.02f)
profileEnd = 0.02f;
else if (profileEnd > 1.0f)
profileEnd = 1.0f;
if (profileBegin >= profileEnd)
profileBegin = profileEnd - 0.02f;
float profileHollow = (float)primShape.ProfileHollow * 2.0e-5f;
if (profileHollow > 0.95f)
profileHollow = 0.95f;
int sides = 4;
LevelOfDetail iLOD = (LevelOfDetail)lod;
byte profshape = (byte)(primShape.ProfileCurve & 0x07);
if (profshape == (byte)ProfileShape.EquilateralTriangle
|| profshape == (byte)ProfileShape.IsometricTriangle
|| profshape == (byte)ProfileShape.RightTriangle)
sides = 3;
else if (profshape == (byte)ProfileShape.Circle)
{
switch (iLOD)
{
case LevelOfDetail.High: sides = 24; break;
case LevelOfDetail.Medium: sides = 12; break;
case LevelOfDetail.Low: sides = 6; break;
case LevelOfDetail.VeryLow: sides = 3; break;
default: sides = 24; break;
}
}
else if (profshape == (byte)ProfileShape.HalfCircle)
{ // half circle, prim is a sphere
switch (iLOD)
{
case LevelOfDetail.High: sides = 24; break;
case LevelOfDetail.Medium: sides = 12; break;
case LevelOfDetail.Low: sides = 6; break;
case LevelOfDetail.VeryLow: sides = 3; break;
default: sides = 24; break;
}
profileBegin = 0.5f * profileBegin + 0.5f;
profileEnd = 0.5f * profileEnd + 0.5f;
}
int hollowSides = sides;
if (primShape.HollowShape == HollowShape.Circle)
{
switch (iLOD)
{
case LevelOfDetail.High: hollowSides = 24; break;
case LevelOfDetail.Medium: hollowSides = 12; break;
case LevelOfDetail.Low: hollowSides = 6; break;
case LevelOfDetail.VeryLow: hollowSides = 3; break;
default: hollowSides = 24; break;
}
}
else if (primShape.HollowShape == HollowShape.Square)
hollowSides = 4;
else if (primShape.HollowShape == HollowShape.Triangle)
{
if (profshape == (byte)ProfileShape.HalfCircle)
hollowSides = 6;
else
hollowSides = 3;
}
primMesh = new PrimMesh(sides, profileBegin, profileEnd, profileHollow, hollowSides);
if (primMesh.errorMessage != null)
if (primMesh.errorMessage.Length > 0)
m_log.Error("[ERROR] " + primMesh.errorMessage);
primMesh.topShearX = pathShearX;
primMesh.topShearY = pathShearY;
primMesh.pathCutBegin = pathBegin;
primMesh.pathCutEnd = pathEnd;
if (primShape.PathCurve == (byte)Extrusion.Straight || primShape.PathCurve == (byte) Extrusion.Flexible)
{
primMesh.twistBegin = (primShape.PathTwistBegin * 18) / 10;
primMesh.twistEnd = (primShape.PathTwist * 18) / 10;
primMesh.taperX = pathScaleX;
primMesh.taperY = pathScaleY;
#if SPAM
m_log.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.ExtrudeLinear();
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex.ToString(), primName, primMesh);
return false;
}
}
else
{
primMesh.holeSizeX = (200 - primShape.PathScaleX) * 0.01f;
primMesh.holeSizeY = (200 - primShape.PathScaleY) * 0.01f;
primMesh.radius = 0.01f * primShape.PathRadiusOffset;
primMesh.revolutions = 1.0f + 0.015f * primShape.PathRevolutions;
primMesh.skew = 0.01f * primShape.PathSkew;
primMesh.twistBegin = (primShape.PathTwistBegin * 36) / 10;
primMesh.twistEnd = (primShape.PathTwist * 36) / 10;
primMesh.taperX = primShape.PathTaperX * 0.01f;
primMesh.taperY = primShape.PathTaperY * 0.01f;
#if SPAM
m_log.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.ExtrudeCircular();
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex.ToString(), primName, primMesh);
return false;
}
}
// primMesh.DumpRaw(baseDir, primName, "primMesh");
coords = primMesh.coords;
faces = primMesh.faces;
return true;
}
public AMeshKey GetMeshUniqueKey(PrimitiveBaseShape primShape, Vector3 size, byte lod, bool convex)
{
AMeshKey key = new AMeshKey();
Byte[] someBytes;
key.hashB = 5181;
key.hashC = 5181;
ulong hash = 5381;
if (primShape.SculptEntry)
{
key.uuid = primShape.SculptTexture;
key.hashC = mdjb2(key.hashC, primShape.SculptType);
key.hashC = mdjb2(key.hashC, primShape.PCode);
}
else
{
hash = mdjb2(hash, primShape.PathCurve);
hash = mdjb2(hash, (byte)primShape.HollowShape);
hash = mdjb2(hash, (byte)primShape.ProfileShape);
hash = mdjb2(hash, primShape.PathBegin);
hash = mdjb2(hash, primShape.PathEnd);
hash = mdjb2(hash, primShape.PathScaleX);
hash = mdjb2(hash, primShape.PathScaleY);
hash = mdjb2(hash, primShape.PathShearX);
key.hashA = hash;
hash = key.hashB;
hash = mdjb2(hash, primShape.PathShearY);
hash = mdjb2(hash, (byte)primShape.PathTwist);
hash = mdjb2(hash, (byte)primShape.PathTwistBegin);
hash = mdjb2(hash, (byte)primShape.PathRadiusOffset);
hash = mdjb2(hash, (byte)primShape.PathTaperX);
hash = mdjb2(hash, (byte)primShape.PathTaperY);
hash = mdjb2(hash, primShape.PathRevolutions);
hash = mdjb2(hash, (byte)primShape.PathSkew);
hash = mdjb2(hash, primShape.ProfileBegin);
hash = mdjb2(hash, primShape.ProfileEnd);
hash = mdjb2(hash, primShape.ProfileHollow);
hash = mdjb2(hash, primShape.PCode);
key.hashB = hash;
}
hash = key.hashC;
hash = mdjb2(hash, lod);
if (size == m_MeshUnitSize)
{
hash = hash << 8;
hash |= 8;
}
else
{
someBytes = size.GetBytes();
for (int i = 0; i < someBytes.Length; i++)
hash = mdjb2(hash, someBytes[i]);
hash = hash << 8;
}
if (convex)
hash |= 4;
if (primShape.SculptEntry)
{
hash |= 1;
if (primShape.SculptType == (byte)SculptType.Mesh)
hash |= 2;
}
key.hashC = hash;
return key;
}
private ulong mdjb2(ulong hash, byte c)
{
return ((hash << 5) + hash) + (ulong)c;
}
private ulong mdjb2(ulong hash, ushort c)
{
hash = ((hash << 5) + hash) + (ulong)((byte)c);
return ((hash << 5) + hash) + (ulong)(c >> 8);
}
public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod)
{
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,false);
}
public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod, bool isPhysical, bool shouldCache, bool convex, bool forOde)
{
return CreateMesh(primName, primShape, size, lod, false, false, false);
}
public IMesh GetMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod, bool isPhysical, bool convex)
{
Mesh mesh = null;
if (size.X < 0.01f) size.X = 0.01f;
if (size.Y < 0.01f) size.Y = 0.01f;
if (size.Z < 0.01f) size.Z = 0.01f;
AMeshKey key = GetMeshUniqueKey(primShape, size, (byte)lod, convex);
lock (m_uniqueMeshes)
{
m_uniqueMeshes.TryGetValue(key, out mesh);
if (mesh != null)
{
mesh.RefCount++;
return mesh;
}
// try to find a identical mesh on meshs recently released
lock (m_uniqueReleasedMeshes)
{
m_uniqueReleasedMeshes.TryGetValue(key, out mesh);
if (mesh != null)
{
m_uniqueReleasedMeshes.Remove(key);
try
{
m_uniqueMeshes.Add(key, mesh);
}
catch { }
mesh.RefCount = 1;
return mesh;
}
}
}
return null;
}
private static Vector3 m_MeshUnitSize = new Vector3(1.0f, 1.0f, 1.0f);
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);
#endif
Mesh mesh = null;
if (size.X < 0.01f) size.X = 0.01f;
if (size.Y < 0.01f) size.Y = 0.01f;
if (size.Z < 0.01f) size.Z = 0.01f;
// try to find a identical mesh on meshs in use
AMeshKey key = GetMeshUniqueKey(primShape,size,(byte)lod, convex);
lock (m_uniqueMeshes)
{
m_uniqueMeshes.TryGetValue(key, out mesh);
if (mesh != null)
{
mesh.RefCount++;
return mesh;
}
// try to find a identical mesh on meshs recently released
lock (m_uniqueReleasedMeshes)
{
m_uniqueReleasedMeshes.TryGetValue(key, out mesh);
if (mesh != null)
{
m_uniqueReleasedMeshes.Remove(key);
try
{
m_uniqueMeshes.Add(key, mesh);
}
catch { }
mesh.RefCount = 1;
return mesh;
}
}
}
Mesh UnitMesh = null;
AMeshKey unitKey = GetMeshUniqueKey(primShape, m_MeshUnitSize, (byte)lod, convex);
lock (m_uniqueReleasedMeshes)
{
m_uniqueReleasedMeshes.TryGetValue(unitKey, out UnitMesh);
if (UnitMesh != null)
{
UnitMesh.RefCount = 1;
}
}
if (UnitMesh == null && primShape.SculptEntry && doMeshFileCache)
UnitMesh = GetFromFileCache(unitKey);
if (UnitMesh == null)
{
UnitMesh = CreateMeshFromPrimMesher(primName, primShape, lod, convex);
if (UnitMesh == null)
return null;
UnitMesh.DumpRaw(baseDir, unitKey.ToString(), "Z");
if (forOde)
{
// force pinned mem allocation
UnitMesh.PrepForOde();
}
else
UnitMesh.TrimExcess();
UnitMesh.Key = unitKey;
UnitMesh.RefCount = 1;
if (doMeshFileCache && primShape.SculptEntry)
StoreToFileCache(unitKey, UnitMesh);
lock (m_uniqueReleasedMeshes)
{
try
{
m_uniqueReleasedMeshes.Add(unitKey, UnitMesh);
}
catch { }
}
}
mesh = UnitMesh.Scale(size);
mesh.Key = key;
mesh.RefCount = 1;
lock (m_uniqueMeshes)
{
try
{
m_uniqueMeshes.Add(key, mesh);
}
catch { }
}
return mesh;
}
public void ReleaseMesh(IMesh imesh)
{
if (imesh == null)
return;
Mesh mesh = (Mesh)imesh;
lock (m_uniqueMeshes)
{
int curRefCount = mesh.RefCount;
curRefCount--;
if (curRefCount > 0)
{
mesh.RefCount = curRefCount;
return;
}
mesh.RefCount = 0;
m_uniqueMeshes.Remove(mesh.Key);
lock (m_uniqueReleasedMeshes)
{
try
{
m_uniqueReleasedMeshes.Add(mesh.Key, mesh);
}
catch { }
}
}
}
public void ExpireReleaseMeshs()
{
if (m_uniqueReleasedMeshes.Count == 0)
return;
List<Mesh> meshstodelete = new List<Mesh>();
int refcntr;
lock (m_uniqueReleasedMeshes)
{
foreach (Mesh m in m_uniqueReleasedMeshes.Values)
{
refcntr = m.RefCount;
refcntr--;
if (refcntr > -6)
m.RefCount = refcntr;
else
meshstodelete.Add(m);
}
foreach (Mesh m in meshstodelete)
{
m_uniqueReleasedMeshes.Remove(m.Key);
m.releaseBuildingMeshData();
m.releasePinned();
}
}
}
public void FileNames(AMeshKey key, out string dir,out string fullFileName)
{
string id = key.ToString();
string init = id.Substring(0, 1);
dir = System.IO.Path.Combine(cachePath, init);
fullFileName = System.IO.Path.Combine(dir, id);
}
public string FullFileName(AMeshKey key)
{
string id = key.ToString();
string init = id.Substring(0,1);
id = System.IO.Path.Combine(init, id);
id = System.IO.Path.Combine(cachePath, id);
return id;
}
private Mesh GetFromFileCache(AMeshKey key)
{
Mesh mesh = null;
string filename = FullFileName(key);
bool ok = true;
lock (diskLock)
{
if (File.Exists(filename))
{
FileStream stream = null;
try
{
stream = File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
BinaryFormatter bformatter = new BinaryFormatter();
mesh = Mesh.FromStream(stream, key);
}
catch (Exception e)
{
ok = false;
m_log.ErrorFormat(
"[MESH CACHE]: Failed to get file {0}. Exception {1} {2}",
filename, e.Message, e.StackTrace);
}
if (stream != null)
stream.Close();
if (mesh == null || !ok)
File.Delete(filename);
else
File.SetLastAccessTimeUtc(filename, DateTime.UtcNow);
}
}
return mesh;
}
private void StoreToFileCache(AMeshKey key, Mesh mesh)
{
Stream stream = null;
bool ok = false;
// Make sure the target cache directory exists
string dir = String.Empty;
string filename = String.Empty;
FileNames(key, out dir, out filename);
lock (diskLock)
{
try
{
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
stream = File.Open(filename, FileMode.Create);
ok = mesh.ToStream(stream);
}
catch (IOException e)
{
m_log.ErrorFormat(
"[MESH CACHE]: Failed to write file {0}. Exception {1} {2}.",
filename, e.Message, e.StackTrace);
ok = false;
}
if (stream != null)
stream.Close();
if (File.Exists(filename))
{
if (ok)
File.SetLastAccessTimeUtc(filename, DateTime.UtcNow);
else
File.Delete(filename);
}
}
}
public void ExpireFileCache()
{
if (!doCacheExpire)
return;
string controlfile = System.IO.Path.Combine(cachePath, "cntr");
lock (diskLock)
{
try
{
if (File.Exists(controlfile))
{
int ndeleted = 0;
int totalfiles = 0;
int ndirs = 0;
DateTime OlderTime = File.GetLastAccessTimeUtc(controlfile) - CacheExpire;
File.SetLastAccessTimeUtc(controlfile, DateTime.UtcNow);
foreach (string dir in Directory.GetDirectories(cachePath))
{
try
{
foreach (string file in Directory.GetFiles(dir))
{
try
{
if (File.GetLastAccessTimeUtc(file) < OlderTime)
{
File.Delete(file);
ndeleted++;
}
}
catch { }
totalfiles++;
}
}
catch { }
ndirs++;
}
if (ndeleted == 0)
m_log.InfoFormat("[MESH CACHE]: {0} Files in {1} cache folders, no expires",
totalfiles,ndirs);
else
m_log.InfoFormat("[MESH CACHE]: {0} Files in {1} cache folders, expired {2} files accessed before {3}",
totalfiles,ndirs, ndeleted, OlderTime.ToString());
}
else
{
m_log.Info("[MESH CACHE]: Expire delayed to next startup");
FileStream fs = File.Create(controlfile,4096,FileOptions.WriteThrough);
fs.Close();
}
}
catch { }
}
}
}
}
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