1 files changed, 117 insertions, 4 deletions

diff --git a/OpenSim/Region/Storage/OpenSim.DataStore.MonoSqlite/MonoSqliteDataStore.cs b/OpenSim/Region/Storage/OpenSim.DataStore.MonoSqlite/MonoSqliteDataStore.cs
index 733e4c4..cc0ff7a 100644
--- a/OpenSim/Region/Storage/OpenSim.DataStore.MonoSqlite/MonoSqliteDataStore.cs
+++ b/OpenSim/Region/Storage/OpenSim.DataStore.MonoSqlite/MonoSqliteDataStore.cs
@@ -43,10 +43,12 @@ namespace OpenSim.DataStore.MonoSqlite
     {
         private const string primSelect = "select * from prims";
         private const string shapeSelect = "select * from primshapes";
+        private const string terrainSelect = "select * from terrain";
 
         private DataSet ds;
         private SqliteDataAdapter primDa;
         private SqliteDataAdapter shapeDa;
+        private SqliteDataAdapter terrainDa;
 
         /***********************************************************************
          *
@@ -70,6 +72,8 @@ namespace OpenSim.DataStore.MonoSqlite
             shapeDa = new SqliteDataAdapter(shapeSelectCmd);
             // SqliteCommandBuilder shapeCb = new SqliteCommandBuilder(shapeDa);
 
+            SqliteCommand terrainSelectCmd = new SqliteCommand(terrainSelect, conn);
+            terrainDa = new SqliteDataAdapter(terrainSelectCmd);
 
             // We fill the data set, now we've got copies in memory for the information
             // TODO: see if the linkage actually holds.
@@ -83,6 +87,10 @@ namespace OpenSim.DataStore.MonoSqlite
                 
                 ds.Tables.Add(createShapeTable());
                 setupShapeCommands(shapeDa, conn);
+
+                ds.Tables.Add(createTerrainTable());
+                setupTerrainCommands(terrainDa, conn);
+                terrainDa.Fill(ds.Tables["terrain"]);
                 
                 // WORKAROUND: This is a work around for sqlite on
                 // windows, which gets really unhappy with blob columns
@@ -210,14 +218,57 @@ namespace OpenSim.DataStore.MonoSqlite
         }
 
 
-        public void StoreTerrain(double[,] ter)
+        public void StoreTerrain(double[,] ter, LLUUID regionID)
         {
+            int revision = OpenSim.Framework.Utilities.Util.UnixTimeSinceEpoch();
+
+            MainLog.Instance.Verbose("DATASTORE", "Storing terrain revision r" + revision.ToString());
+
+            DataTable terrain = ds.Tables["terrain"];
+
+            DataRow newrow = terrain.NewRow();
+            fillTerrainRow(newrow, regionID, revision, ter);
+            terrain.Rows.Add(newrow);
 
+            Commit();
         }
 
-        public double[,] LoadTerrain()
+        public double[,] LoadTerrain(LLUUID regionID)
         {
-            return null;
+            double[,] terret = new double[256, 256];
+            terret.Initialize();
+
+            DataTable terrain = ds.Tables["terrain"];
+
+            DataRow[] rows = terrain.Select("RegionUUID = '" + regionID.ToString() + "'","Revision DESC");
+
+            int rev = 0;
+
+            if (rows.Length > 0)
+            {
+                DataRow row = rows[0];
+
+                byte[] heightmap = (byte[])row["Heightfield"];
+                for (int x = 0; x < 256; x++)
+                {
+                    for (int y = 0; y < 256; y++)
+                    {
+                        terret[x, y] = BitConverter.ToDouble(heightmap, ((x * 256) + y) * 8);
+                    }
+                }
+
+                rev = (int)row["Revision"];
+            }
+            else
+            {
+                MainLog.Instance.Verbose("DATASTORE", "No terrain found for region");
+                return null;
+            }
+
+
+            MainLog.Instance.Verbose("DATASTORE", "Loaded terrain revision r" + rev.ToString());
+
+            return terret;
         }
 
         public void RemoveLandObject(uint id)
@@ -240,6 +291,7 @@ namespace OpenSim.DataStore.MonoSqlite
             lock (ds) {
                 primDa.Update(ds, "prims");
                 shapeDa.Update(ds, "primshapes");
+                terrainDa.Update(ds, "terrain");
                 ds.AcceptChanges();
             }
         }
@@ -263,6 +315,22 @@ namespace OpenSim.DataStore.MonoSqlite
             dt.Columns.Add(col);
         }
 
+        private DataTable createTerrainTable()
+        {
+            DataTable terrain = new DataTable("terrain");
+
+            createCol(terrain, "RegionUUID", typeof(System.String));
+            createCol(terrain, "Revision", typeof(System.Int32));
+            createCol(terrain, "Heightfield", typeof(System.Byte[]));
+
+            /* // Attempting to work out requirements to get SQLite to actually *save* the data.
+            createCol(terrain, "PrIndex", typeof(System.String));
+            terrain.PrimaryKey = new DataColumn[] { terrain.Columns["PrIndex"] };
+            */
+
+            return terrain;
+        }
+
         private DataTable createPrimTable()
         {
             DataTable prims = new DataTable("prims");
@@ -431,6 +499,22 @@ namespace OpenSim.DataStore.MonoSqlite
             return prim;
         }
 
+        private void fillTerrainRow(DataRow row, LLUUID regionUUID, int rev, double[,] val)
+        {
+            row["RegionUUID"] = regionUUID;
+            row["Revision"] = rev;
+
+            System.IO.MemoryStream str = new System.IO.MemoryStream(65536 * sizeof(double));
+            System.IO.BinaryWriter bw = new System.IO.BinaryWriter(str);
+
+            // TODO: COMPATIBILITY - Add byte-order conversions
+            for (int x = 0; x < 256; x++)
+                for (int y = 0; y < 256; y++)
+                    bw.Write(val[x, y]);
+
+            row["Heightfield"] = str.ToArray();
+        }
+
         private void fillPrimRow(DataRow row, SceneObjectPart prim, LLUUID sceneGroupID, LLUUID regionUUID)
         {
             row["UUID"] = prim.UUID;
@@ -692,7 +776,7 @@ namespace OpenSim.DataStore.MonoSqlite
                     subsql += ",\n";
                 }
                 subsql += col.ColumnName + " " + sqliteType(col.DataType);
-                if (col == dt.PrimaryKey[0])
+                if (dt.PrimaryKey.Length > 0 && col == dt.PrimaryKey[0])
                 {
                     subsql += " primary key";
                 }
@@ -746,6 +830,12 @@ namespace OpenSim.DataStore.MonoSqlite
             da.DeleteCommand = delete;
         }
 
+        private void setupTerrainCommands(SqliteDataAdapter da, SqliteConnection conn)
+        {
+            da.InsertCommand = createInsertCommand("terrain", ds.Tables["terrain"]);
+            da.InsertCommand.Connection = conn;
+        }
+
         private void setupShapeCommands(SqliteDataAdapter da, SqliteConnection conn)
         {
             da.InsertCommand = createInsertCommand("primshapes", ds.Tables["primshapes"]);
@@ -764,12 +854,15 @@ namespace OpenSim.DataStore.MonoSqlite
         {
             string createPrims = defineTable(createPrimTable());
             string createShapes = defineTable(createShapeTable());
+            string createTerrain = defineTable(createTerrainTable());
 
             SqliteCommand pcmd = new SqliteCommand(createPrims, conn);
             SqliteCommand scmd = new SqliteCommand(createShapes, conn);
+            SqliteCommand tcmd = new SqliteCommand(createTerrain, conn);
             conn.Open();
             pcmd.ExecuteNonQuery();
             scmd.ExecuteNonQuery();
+            tcmd.ExecuteNonQuery();
             conn.Close();
         }
 
@@ -779,12 +872,15 @@ namespace OpenSim.DataStore.MonoSqlite
             SqliteDataAdapter pDa = new SqliteDataAdapter(primSelectCmd);
             SqliteCommand shapeSelectCmd = new SqliteCommand(shapeSelect, conn);
             SqliteDataAdapter sDa = new SqliteDataAdapter(shapeSelectCmd);
+            SqliteCommand terrainSelectCmd = new SqliteCommand(terrainSelect, conn);
+            SqliteDataAdapter tDa = new SqliteDataAdapter(terrainSelectCmd);
 
             DataSet tmpDS = new DataSet();
             try
             {
                 pDa.Fill(tmpDS, "prims");
                 sDa.Fill(tmpDS, "primshapes");
+                tDa.Fill(tmpDS, "terrain");
             }
             catch (Mono.Data.SqliteClient.SqliteSyntaxException)
             {
@@ -794,6 +890,7 @@ namespace OpenSim.DataStore.MonoSqlite
 
             pDa.Fill(tmpDS, "prims");
             sDa.Fill(tmpDS, "primshapes");
+            tDa.Fill(tmpDS, "terrain");
 
             foreach (DataColumn col in createPrimTable().Columns)
             {
@@ -811,6 +908,14 @@ namespace OpenSim.DataStore.MonoSqlite
                     return false;
                 }
             }
+            foreach (DataColumn col in createTerrainTable().Columns)
+            {
+                if (!tmpDS.Tables["terrain"].Columns.Contains(col.ColumnName))
+                {
+                    MainLog.Instance.Verbose("DATASTORE", "Missing require column:" + col.ColumnName);
+                    return false;
+                }
+            }
             return true;
         }
 
@@ -834,6 +939,14 @@ namespace OpenSim.DataStore.MonoSqlite
             {
                 return DbType.Double;
             }
+            else if (type == typeof(System.Byte))
+            {
+                return DbType.Byte;
+            }
+            else if (type == typeof(System.Double))
+            {
+                return DbType.Double;
+            }
             else if (type == typeof(System.Byte[]))
             {
                 return DbType.Binary;