Flush() public method

public Flush ( ) : void
return void
Beispiel #1
0
        // parses a LOD or physics mesh component
        private bool submesh(byte[] data, int offset, int size, out int ntriangles)
        {
            ntriangles = 0;

            OSD decodedMeshOsd = new OSD();
            byte[] meshBytes = new byte[size];
            System.Buffer.BlockCopy(data, offset, meshBytes, 0, size);
            try
            {
                using (MemoryStream inMs = new MemoryStream(meshBytes))
                {
                    using (MemoryStream outMs = new MemoryStream())
                    {
                        using (ZOutputStream zOut = new ZOutputStream(outMs))
                        {
                            byte[] readBuffer = new byte[4096];
                            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
            {
                return false;
            }

            OSDArray decodedMeshOsdArray = null;

            byte[] dummy;

            decodedMeshOsdArray = (OSDArray)decodedMeshOsd;
            foreach (OSD subMeshOsd in decodedMeshOsdArray)
            {
                if (subMeshOsd is OSDMap)
                {
                    OSDMap subtmpmap = (OSDMap)subMeshOsd;
                    if (subtmpmap.ContainsKey("NoGeometry") && ((OSDBoolean)subtmpmap["NoGeometry"]))
                        continue;

                    if (!subtmpmap.ContainsKey("Position"))
                        return false;

                    if (subtmpmap.ContainsKey("TriangleList"))
                    {
                        dummy = subtmpmap["TriangleList"].AsBinary();
                        ntriangles += dummy.Length / bytesPerCoord;
                    }
                    else
                        return false;
                }
            }

            return true;
        }
Beispiel #2
0
        // parses convex hulls component
        private bool hulls(byte[] data, int offset, int size, out int nvertices, out int nhulls)
        {
            nvertices = 0;
            nhulls = 1;

            OSD decodedMeshOsd = new OSD();
            byte[] meshBytes = new byte[size];
            System.Buffer.BlockCopy(data, offset, meshBytes, 0, size);
            try
            {
                using (MemoryStream inMs = new MemoryStream(meshBytes))
                {
                    using (MemoryStream outMs = new MemoryStream())
                    {
                        using (ZOutputStream zOut = new ZOutputStream(outMs))
                        {
                            byte[] readBuffer = new byte[4096];
                            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
            {
                return false;
            }

            OSDMap cmap = (OSDMap)decodedMeshOsd;
            if (cmap == null)
                return false;

            byte[] dummy;

            // must have one of this
            if (cmap.ContainsKey("BoundingVerts"))
            {
                dummy = cmap["BoundingVerts"].AsBinary();
                nvertices = dummy.Length / bytesPerCoord;
            }
            else
                return false;

/* upload is done with convex shape type
            if (cmap.ContainsKey("HullList"))
            {
                dummy = cmap["HullList"].AsBinary();
                nhulls += dummy.Length;
            }


            if (cmap.ContainsKey("Positions"))
            {
                dummy = cmap["Positions"].AsBinary();
                nvertices = dummy.Length / bytesPerCoord;
            }
 */

            return true;
        }
Beispiel #3
0
        /// <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, Vector3 size, out List<Coord> coords, out List<Face> faces)
        {
            m_log.DebugFormat("[MESH]: experimental mesh proxy generation for {0}", primName);

            coords = new List<Coord>();
            faces = new List<Face>();
            OSD meshOsd = null;

            if (primShape.SculptData.Length <= 0)
            {
                m_log.Error("[MESH]: asset data is zero length");
                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 (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)
                {
                    m_log.Warn("[MESH]: no recognized physics mesh found in mesh asset");
                    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);
//                        byte[] decompressed = new byte[physSize * 5];
                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;
                }

                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, size, coords, faces);
                    }
                }
            }

            return true;
        }
 public void Deserialize(OSDMap map)
 {
     try
     {
         using (MemoryStream input = new MemoryStream(map["Zipped"].AsBinary()))
         {
             using (MemoryStream output = new MemoryStream())
             {
                 using (ZOutputStream zout = new ZOutputStream(output))
                 {
                     byte[] buffer = new byte[2048];
                     int len;
                     while ((len = input.Read(buffer, 0, buffer.Length)) > 0)
                     {
                         zout.Write(buffer, 0, len);
                     }
                     zout.Flush();
                     output.Seek(0, SeekOrigin.Begin);
                     MaterialData = OSDParser.DeserializeLLSDBinary(output);
                 }
             }
         }
     }
     catch (Exception ex)
     {
         Logger.Log("Failed to decode RenderMaterials message:", Helpers.LogLevel.Warning, ex);
         MaterialData = new OSDMap();
     }
 }
        private Mesh CreateMeshFromPrimMesher(string primName, PrimitiveBaseShape primShape, Vector3 size, float lod)
        {
//            m_log.DebugFormat(
//                "[MESH]: Creating physics proxy for {0}, shape {1}",
//                primName, (OpenMetaverse.SculptType)primShape.SculptType);

            PrimMesh primMesh;
            PrimMesher.SculptMesh sculptMesh;

            List<Coord> coords = new List<Coord>();
            List<Face> faces = new List<Face>();

            Image idata = null;
            string decodedSculptFileName = "";

            if (primShape.SculptEntry)
            {
                if (((OpenMetaverse.SculptType)primShape.SculptType) == SculptType.Mesh)
                {
                    if (!useMeshiesPhysicsMesh)
                        return null;

                    m_log.DebugFormat("[MESH]: experimental mesh proxy generation for {0}", primName);

                    OSD meshOsd = null;

                    if (primShape.SculptData.Length <= 0)
                    {
                        m_log.Error("[MESH]: asset data is zero length");
                        return null;
                    }

                    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 null;
                            }
                        }
                        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 (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)
                        {
                            m_log.Warn("[MESH]: no recognized physics mesh found in mesh asset");
                            return null;
                        }

                        int physOffset = physicsParms["offset"].AsInteger() + (int)start;
                        int physSize = physicsParms["size"].AsInteger();

                        if (physOffset < 0 || physSize == 0)
                            return null; // no mesh data in asset

                        OSD decodedMeshOsd = new OSD();
                        byte[] meshBytes = new byte[physSize];
                        System.Buffer.BlockCopy(primShape.SculptData, physOffset, meshBytes, 0, physSize);
//                        byte[] decompressed = new byte[physSize * 5];
                        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 null;
                        }

                        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, size, coords, faces);
                            }
                        }
                    }
                }
                else
                {
                    if (cacheSculptMaps && primShape.SculptTexture != UUID.Zero)
                    {
                        decodedSculptFileName = System.IO.Path.Combine(decodedSculptMapPath, "smap_" + primShape.SculptTexture.ToString());
                        try
                        {
                            if (File.Exists(decodedSculptFileName))
                            {
                                idata = Image.FromFile(decodedSculptFileName);
                            }
                        }
                        catch (Exception e)
                        {
                            m_log.Error("[SCULPT]: unable to load cached sculpt map " + decodedSculptFileName + " " + e.Message);

                        }
                        //if (idata != null)
                        //    m_log.Debug("[SCULPT]: loaded cached map asset for map ID: " + primShape.SculptTexture.ToString());
                    }

                    if (idata == null)
                    {
                        if (primShape.SculptData == null || primShape.SculptData.Length == 0)
                            return null;

                        try
                        {
                            OpenMetaverse.Imaging.ManagedImage unusedData;
                            OpenMetaverse.Imaging.OpenJPEG.DecodeToImage(primShape.SculptData, out unusedData, out idata);
                            unusedData = null;

                            //idata = CSJ2K.J2kImage.FromBytes(primShape.SculptData);

                            if (cacheSculptMaps && idata != null)
                            {
                                try { idata.Save(decodedSculptFileName, ImageFormat.MemoryBmp); }
                                catch (Exception e) { m_log.Error("[SCULPT]: unable to cache sculpt map " + decodedSculptFileName + " " + e.Message); }
                            }
                        }
                        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 null;
                        }
                        catch (IndexOutOfRangeException)
                        {
                            m_log.Error("[PHYSICS]: OpenJpeg was unable to decode this. Physics Proxy generation failed");
                            return null;
                        }
                        catch (Exception ex)
                        {
                            m_log.Error("[PHYSICS]: Unable to generate a Sculpty physics proxy. Sculpty texture decode failed: " + ex.Message);
                            return null;
                        }
                    }

                    PrimMesher.SculptMesh.SculptType sculptType;
                    switch ((OpenMetaverse.SculptType)primShape.SculptType)
                    {
                        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, false, mirror, invert);
                    
                    idata.Dispose();

                    sculptMesh.DumpRaw(baseDir, primName, "primMesh");

                    sculptMesh.Scale(size.X, size.Y, size.Z);

                    coords = sculptMesh.coords;
                    faces = sculptMesh.faces;
                }
            }
            else
            {
                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;
                float profileHollow = (float)primShape.ProfileHollow * 2.0e-5f;
                if (profileHollow > 0.95f)
                    profileHollow = 0.95f;

                int sides = 4;
                if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.EquilateralTriangle)
                    sides = 3;
                else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.Circle)
                    sides = 24;
                else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.HalfCircle)
                { // half circle, prim is a sphere
                    sides = 24;

                    profileBegin = 0.5f * profileBegin + 0.5f;
                    profileEnd = 0.5f * profileEnd + 0.5f;
                }

                int hollowSides = sides;
                if (primShape.HollowShape == HollowShape.Circle)
                    hollowSides = 24;
                else if (primShape.HollowShape == HollowShape.Square)
                    hollowSides = 4;
                else if (primShape.HollowShape == HollowShape.Triangle)
                    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 (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
                    {
                        ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
                        if (profileBegin < 0.0f) profileBegin = 0.0f;
                        if (profileEnd > 1.0f) profileEnd = 1.0f;
                    }
#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 null;
                    }
                }
                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 (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
                    {
                        ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
                        if (profileBegin < 0.0f) profileBegin = 0.0f;
                        if (profileEnd > 1.0f) profileEnd = 1.0f;
                    }
#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 null;
                    }
                }

                primMesh.DumpRaw(baseDir, primName, "primMesh");

                primMesh.Scale(size.X, size.Y, size.Z);

                coords = primMesh.coords;
                faces = primMesh.faces;
            }

            // Remove the reference to any JPEG2000 sculpt data so it can be GCed
            primShape.SculptData = Utils.EmptyBytes;

            int numCoords = coords.Count;
            int numFaces = faces.Count;

            // Create the list of vertices
            List<Vertex> vertices = new List<Vertex>();
            for (int i = 0; i < numCoords; i++)
            {
                Coord c = coords[i];
                vertices.Add(new Vertex(c.X, c.Y, c.Z));
            }

            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(vertices[f.v1], vertices[f.v2], vertices[f.v3]));
            }

            return mesh;
        }
Beispiel #6
0
        private string deflate()
        {
            int totalSize = 0;

            foreach (DSMCCDownloadDataBlock block in blocks)
                totalSize += block.DataSize;

            byte[] moduleData = new byte[totalSize];
            int dataIndex = 0;

            foreach (DSMCCDownloadDataBlock block in blocks)
            {
                for (int inputIndex = 0; inputIndex < block.DataSize; inputIndex++)
                {
                    moduleData[dataIndex] = block.Data[inputIndex];
                    dataIndex++;
                }
            }

            try
            {
                MemoryStream output = new MemoryStream();
                ZOutputStream zstream = new ZOutputStream(output);

                data = new byte[originalSize];
                zstream.Write(moduleData, 0, moduleData.Length);
                zstream.Flush();
                output.Seek(0, SeekOrigin.Begin);
                int readCount = output.Read(data, 0, data.Length);

                return (null);
            }
            catch (Exception e)
            {
                return (e.Message);
            }
        }
Beispiel #7
0
        /// <summary>
        /// decompresses a gzipped OSD object
        /// </summary>
        /// <param name="decodedOsd"></param> the OSD object
        /// <param name="meshBytes"></param>
        /// <returns></returns>
        private static OSD DecompressOsd(byte[] meshBytes)
        {
            OSD decodedOsd = null;

            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();

                        decodedOsd = OSDParser.DeserializeLLSDBinary(decompressedBuf);
                    }
                }
            }
            return decodedOsd;
        }
        Mesh CreateMeshFromPrimMesher(string primName, PrimitiveBaseShape primShape, Vector3 size, float lod,
            ulong key)
        {
            PrimMesh primMesh;
            SculptMesh sculptMesh;

            List<Coord> coords = new List<Coord>();
            List<Face> faces = new List<Face>();

            Image idata = null;
            string decodedSculptFileName = "";

            if (primShape.SculptEntry)
            {
                if (((SculptType) primShape.SculptType & SculptType.Mesh) == SculptType.Mesh)
                {
                    if (!UseMeshesPhysicsMesh)
                        return null;

                    MainConsole.Instance.Debug("[MESH]: experimental mesh proxy generation");

                    OSD meshOsd = null;

                    if (primShape.SculptData == null || primShape.SculptData.Length <= 0)
                    {
                        //MainConsole.Instance.Error("[MESH]: asset data is zero length");
                        return null;
                    }

                    long start = 0;
                    using (MemoryStream data = new MemoryStream(primShape.SculptData))
                    {
                        try
                        {
                            meshOsd = OSDParser.DeserializeLLSDBinary(data);
                        }
                        catch (Exception e)
                        {
                            MainConsole.Instance.Error("[MESH]: Exception deserializing mesh asset header:" + e);
                        }
                        start = data.Position;
                    }

                    if (meshOsd is OSDMap)
                    {
                        OSDMap map = (OSDMap) meshOsd;
                        OSDMap physicsParms = new OSDMap();

                        if (map.ContainsKey("physics_cached"))
                        {
                            OSD cachedMeshMap = map["physics_cached"]; // cached data from Universe
                            Mesh cachedMesh = new Mesh(key);
                            cachedMesh.Deserialize(cachedMeshMap);
                            cachedMesh.WasCached = true;
                            return cachedMesh; //Return here, we found all of the info right here
                        }
                        if (map.ContainsKey("physics_shape"))
                            physicsParms = (OSDMap) map["physics_shape"]; // old asset format
                        if (physicsParms.Count == 0 && map.ContainsKey("physics_mesh"))
                            physicsParms = (OSDMap) map["physics_mesh"]; // new asset format
                        if (physicsParms.Count == 0 && map.ContainsKey("physics_convex"))
                            // convex hull format, which we can't read, so instead
                            // read the highest lod that exists, and use it instead
                            physicsParms = (OSDMap) map["high_lod"];

                        int physOffset = physicsParms["offset"].AsInteger() + (int) start;
                        int physSize = physicsParms["size"].AsInteger();

                        if (physOffset < 0 || physSize == 0)
                            return null; // no mesh data in asset

                        OSD decodedMeshOsd = new OSD();
                        byte[] meshBytes = new byte[physSize];
                        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,1))
                                    {
                                        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)
                        {
                            MainConsole.Instance.Error("[MESH]: exception decoding physical mesh: " + e);
                            return null;
                        }

                        OSDArray decodedMeshOsdArray = null;

                        // physics_shape is an array of OSDMaps, one for each submesh
                        if (decodedMeshOsd is OSDArray)
                        {
                            decodedMeshOsdArray = (OSDArray) decodedMeshOsd;
                            foreach (OSD subMeshOsd in decodedMeshOsdArray)
                            {
                                if (subMeshOsd is OSDMap)
                                {
                                    OSDMap subMeshMap = (OSDMap) subMeshOsd;

                                    // 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 (subMeshMap.ContainsKey("NoGeometry") && (subMeshMap["NoGeometry"]))
                                        continue;

                                    Vector3 posMax = new Vector3(0.5f, 0.5f, 0.5f);
                                    Vector3 posMin = new Vector3(-0.5f, -0.5f, -0.5f);
                                    if (subMeshMap.ContainsKey("PositionDomain"))
                                        //Optional, so leave the max and min values otherwise
                                    {
                                        posMax = ((OSDMap) subMeshMap["PositionDomain"])["Max"].AsVector3();
                                        posMin = ((OSDMap) subMeshMap["PositionDomain"])["Min"].AsVector3();
                                    }
                                    ushort faceIndexOffset = (ushort) coords.Count;

                                    byte[] posBytes = subMeshMap["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)*size.X,
                                            Utils.UInt16ToFloat(uY, posMin.Y, posMax.Y)*size.Y,
                                            Utils.UInt16ToFloat(uZ, posMin.Z, posMax.Z)*size.Z);

                                        coords.Add(c);
                                    }

                                    byte[] triangleBytes = subMeshMap["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);
                                    }
                                }
                            }
                        }
                    }
                }
                else
                {
                    if (cacheSculptMaps && primShape.SculptTexture != UUID.Zero)
                    {
                        decodedSculptFileName = System.IO.Path.Combine(decodedSculptMapPath,
                                                             "smap_" + primShape.SculptTexture.ToString());
                        try
                        {
                            if (File.Exists(decodedSculptFileName))
                            {
                                idata = Image.FromFile(decodedSculptFileName);
                            }
                        }
                        catch (Exception e)
                        {
                            MainConsole.Instance.Error("[SCULPT]: unable to load cached sculpt map " +
                                                       decodedSculptFileName + " " + e);
                        }
                        //if (idata != null)
                        //    MainConsole.Instance.Debug("[SCULPT]: loaded cached map asset for map ID: " + primShape.SculptTexture.ToString());
                    }

                    if (idata == null)
                    {
                        if (primShape.SculptData == null || primShape.SculptData.Length == 0)
                            return null;

                        try
                        {
                            idata = m_j2kDecoder.DecodeToImage(primShape.SculptData);

                            if (idata != null && cacheSculptMaps &&
                                (cacheSculptAlphaMaps || (((ImageFlags) (idata.Flags) & ImageFlags.HasAlpha) == 0)))
                            {
                                try
                                {
                                    idata.Save(decodedSculptFileName, ImageFormat.MemoryBmp);
                                }
                                catch (Exception e)
                                {
                                    MainConsole.Instance.Error("[SCULPT]: unable to cache sculpt map " +
                                                               decodedSculptFileName + " " +
                                                               e);
                                }
                            }
                        }
                        catch (DllNotFoundException)
                        {
                            MainConsole.Instance.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 null;
                        }
                        catch (IndexOutOfRangeException)
                        {
                            MainConsole.Instance.Error(
                                "[PHYSICS]: OpenJpeg was unable to decode this. Physics Proxy generation failed");
                            return null;
                        }
                        catch (Exception ex)
                        {
                            MainConsole.Instance.Error(
                                "[PHYSICS]: Unable to generate a Sculpty physics proxy. Sculpty texture decode failed: " +
                                ex);
                            return null;
                        }
                    }

                    SculptMesh.SculptType sculptType;
                    switch ((SculptType) primShape.SculptType)
                    {
                        case SculptType.Cylinder:
                            sculptType = SculptMesh.SculptType.cylinder;
                            break;
                        case SculptType.Plane:
                            sculptType = SculptMesh.SculptType.plane;
                            break;
                        case SculptType.Torus:
                            sculptType = SculptMesh.SculptType.torus;
                            break;
                        case SculptType.Sphere:
                            sculptType = SculptMesh.SculptType.sphere;
                            break;
                        default:
                            sculptType = SculptMesh.SculptType.plane;
                            break;
                    }

                    bool mirror = ((primShape.SculptType & 128) != 0);
                    bool invert = ((primShape.SculptType & 64) != 0);

                    if (idata == null)
                        return null;

                    sculptMesh = new SculptMesh((Bitmap) idata, sculptType, (int) lod, false, mirror, invert);

                    idata.Dispose();
                    idata = null;

                    sculptMesh.DumpRaw(baseDir, primName, "primMesh");

                    sculptMesh.Scale(size.X, size.Y, size.Z);

                    coords = sculptMesh.coords;
                    faces = sculptMesh.faces;
                }
            }
            else
            {
                float pathShearX = primShape.PathShearX < 128
                                       ? primShape.PathShearX*0.01f
                                       : (primShape.PathShearX - 256)*0.01f;
                float pathShearY = primShape.PathShearY < 128
                                       ? primShape.PathShearY*0.01f
                                       : (primShape.PathShearY - 256)*0.01f;
                float pathBegin = primShape.PathBegin*2.0e-5f;
                float pathEnd = 1.0f - primShape.PathEnd*2.0e-5f;
                float pathScaleX = (primShape.PathScaleX - 100)*0.01f;
                float pathScaleY = (primShape.PathScaleY - 100)*0.01f;

                float profileBegin = primShape.ProfileBegin*2.0e-5f;
                float profileEnd = 1.0f - primShape.ProfileEnd*2.0e-5f;
                float profileHollow = primShape.ProfileHollow*2.0e-5f;
                if (profileHollow > 0.95f)
                {
                    if (profileHollow > 0.99f)
                        profileHollow = 0.99f;
                    float sizeX = primShape.Scale.X - (primShape.Scale.X*profileHollow);
                    if (sizeX < 0.1f) //If its > 0.1, its fine to mesh at the small hollow
                        profileHollow = 0.95f + (sizeX/2); //Scale the rest by how large the size of the prim is
                }

                int sides = 4;
                switch ((primShape.ProfileCurve & 0x07))
                {
                    case (byte) ProfileShape.EquilateralTriangle:
                        sides = 3;
                        break;
                    case (byte) ProfileShape.Circle:
                        sides = 24;
                        break;
                    case (byte) ProfileShape.HalfCircle:
                        sides = 24;
                        profileBegin = 0.5f*profileBegin + 0.5f;
                        profileEnd = 0.5f*profileEnd + 0.5f;
                        break;
                }

                int hollowSides = sides;
                switch (primShape.HollowShape)
                {
                    case HollowShape.Circle:
                        hollowSides = 24;
                        break;
                    case HollowShape.Square:
                        hollowSides = 4;
                        break;
                    case HollowShape.Triangle:
                        hollowSides = 3;
                        break;
                }

                primMesh = new PrimMesh(sides, profileBegin, profileEnd, profileHollow, hollowSides);

                if (primMesh.errorMessage != null)
                    if (primMesh.errorMessage.Length > 0)
                        MainConsole.Instance.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 (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
                    {
                        ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
                        if (profileBegin < 0.0f) profileBegin = 0.0f;
                        if (profileEnd > 1.0f) profileEnd = 1.0f;
                    }
            #if SPAM
                MainConsole.Instance.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
            #endif
                    try
                    {
                        primMesh.Extrude(primShape.PathCurve == (byte) Extrusion.Straight
                                             ? PathType.Linear
                                             : PathType.Flexible);
                    }
                    catch (Exception ex)
                    {
                        ReportPrimError("Extrusion failure: exception: " + ex, primName, primMesh);
                        return null;
                    }
                }
                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 (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
                    {
                        ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
                        if (profileBegin < 0.0f) profileBegin = 0.0f;
                        if (profileEnd > 1.0f) profileEnd = 1.0f;
                    }
            #if SPAM
                MainConsole.Instance.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
            #endif
                    try
                    {
                        primMesh.Extrude(PathType.Circular);
                    }
                    catch (Exception ex)
                    {
                        ReportPrimError("Extrusion failure: exception: " + ex, primName, primMesh);
                        return null;
                    }
                }

                primMesh.DumpRaw(baseDir, primName, "primMesh");

                primMesh.Scale(size.X, size.Y, size.Z);

                coords = primMesh.coords;
                faces = primMesh.faces;
                primMesh = null;
            }

            Mesh mesh = new Mesh(key);

            // Add the corresponding triangles to the mesh
            mesh.Set(coords, faces);
            coords.Clear();
            faces.Clear();
            coords = null;
            faces = null;
            return mesh;
        }
        /// <summary>
        /// Old Decompress method not using .NET compressor
        /// </summary>
        /// <param name="Data"></param>
        /// <returns></returns>
        public byte[] DecompressOld(byte[] Data)
        {
            byte[] decompressedPixelData = new byte[UncompressedLength];

            // ZLIB
            if (version > BgfFile.VERSION9)
            {
                // init streams
                MemoryStream destStream = new MemoryStream(decompressedPixelData, true);
                ZOutputStream destZ = new ZOutputStream(destStream);

                // decompress
                destZ.Write(Data, 0, Data.Length);
                destZ.Flush();
                destZ.finish();

                // cleanup
                destStream.Dispose();
                destZ.Dispose();
            }
            // CRUSH
            else
            {
            #if WINCLR && X86
                // decompress
                Crush32.Decompress(Data, 0, decompressedPixelData, 0, (int)UncompressedLength, CompressedLength);
            #else
                throw new Exception(ERRORCRUSHPLATFORM);
            #endif
            }

            // set decompressed array to pixeldata
            return decompressedPixelData;
        }
        /// <summary>
        /// Returns a compressed byte[] of PixelData argument
        /// </summary>
        /// <param name="Data"></param>
        /// <returns></returns>
        public byte[] Compress(byte[] Data)
        {
            // allocate a buffer with uncompressed length to write compressed stream to
            byte[] tempBuffer = new byte[UncompressedLength];
            int compressedLength;

            // ZLIB
            if (version > BgfFile.VERSION9)
            {
                // init streams
                MemoryStream destStream = new MemoryStream(tempBuffer, true);
                ZOutputStream destZ = new ZOutputStream(destStream, zlibConst.Z_BEST_COMPRESSION);

                // compress
                destZ.Write(Data, 0, Data.Length);
                destZ.Flush();
                destZ.finish();

                // update compressed length
                compressedLength = (int)destZ.TotalOut;

                // cleanup
                destStream.Dispose();
                destZ.Dispose();
            }
            // CRUSH
            else
            {
            #if WINCLR && X86
                // compress to tempBuffer
                compressedLength = Crush32.Compress(Data, 0, tempBuffer, 0, (int)UncompressedLength);
            #else
                throw new Exception(ERRORCRUSHPLATFORM);
            #endif
            }

            // copy all bytes we actually used from tempBuffer to new PixelData
            byte[] newPixelData = new byte[compressedLength];
            Array.Copy(tempBuffer, 0, newPixelData, 0, compressedLength);

            return newPixelData;
        }
Beispiel #11
0
        /// <summary>
        /// 压缩
        /// </summary>
        /// <param name="param"></param>
        /// <returns></returns>
        static public void CompressByteZipNet(byte[] inBytes, uint startPos, uint inLen, ref byte[] outBytes, ref uint outLen)
        {
            MemoryStream ms = new MemoryStream();
            ZOutputStream zipStream = new ZOutputStream(ms, 9);

            try
            {
                zipStream.Write(inBytes, (int)startPos, (int)inLen);

                zipStream.Flush();
                zipStream.Close();      // 一定要先 Close ZipOutputStream ,然后再获取 ToArray ,如果不关闭, ToArray 将不能返回正确的值

                outBytes = ms.ToArray();
                outLen = (uint)outBytes.Length;
                ms.Close();
            }
            catch
            {
                Ctx.m_instance.m_logSys.error("CompressByteZipNet error");
            }
        }