// TerrainData.Clone
public HeightMapTerrainData Clone()
{
HeightMapTerrainData ret = new HeightMapTerrainData(SizeX, SizeY, SizeZ);
ret.m_heightmap = (int[, ]) this.m_heightmap.Clone();
return(ret);
}
// Scan the height info we're returning and return a patch packet header for this patch.
private static TerrainPatch.Header PrescanPatch(HeightMapTerrainData terrData, int patchX, int patchY)
{
TerrainPatch.Header header = new TerrainPatch.Header();
float zmax = -99999999.0f;
float zmin = 99999999.0f;
for (int j = patchY * Constants.TerrainPatchSize; j < (patchY + 1) * Constants.TerrainPatchSize; j++)
{
for (int i = patchX * Constants.TerrainPatchSize; i < (patchX + 1) * Constants.TerrainPatchSize; i++)
{
float val = terrData[i, j];
if (val > zmax)
{
zmax = val;
}
if (val < zmin)
{
zmin = val;
}
}
}
header.DCOffset = zmin;
header.Range = (int)((zmax - zmin) + 1.0f);
return(header);
}
/// <summary>
/// Add a patch of terrain to a BitPacker
/// </summary>
/// <param name="output">BitPacker to write the patch to</param>
/// <param name="heightmap">
/// Heightmap of the simulator. Presumed to be an sizeX*sizeY array.
/// </param>
/// <param name="patchX">
/// X offset of the patch to create.
/// </param>
/// <param name="patchY">
/// Y offset of the patch to create.
/// </param>
/// <param name="pRegionSizeX"></param>
/// <param name="pRegionSizeY"></param>
public static void CreatePatchFromHeightmap(BitPack output, HeightMapTerrainData terrData, int patchX, int patchY)
{
TerrainPatch.Header header = PrescanPatch(terrData, patchX, patchY);
header.QuantWBits = 136;
// If larger than legacy region size, pack patch X and Y info differently.
if (terrData.SizeX > Constants.RegionSize || terrData.SizeY > Constants.RegionSize)
{
header.PatchIDs = (patchY & 0xFFFF);
header.PatchIDs += (patchX << 16);
}
else
{
header.PatchIDs = (patchY & 0x1F);
header.PatchIDs += (patchX << 5);
}
// m_log.DebugFormat("{0} CreatePatchFromHeightmap. patchX={1}, patchY={2}, DCOffset={3}, range={4}",
// LogHeader, patchX, patchY, header.DCOffset, header.Range);
// NOTE: No idea what prequant and postquant should be or what they do
int wbits;
int[] patch = CompressPatch(terrData, patchX, patchY, header, 10, out wbits);
wbits = EncodePatchHeader(output, header, patch, (uint)terrData.SizeX, (uint)terrData.SizeY, wbits);
EncodePatch(output, patch, 0, wbits);
}
/// <summary>
/// Creates a LayerData packet for compressed land data given a full
/// simulator heightmap and an array of indices of patches to compress
/// </summary>
/// <param name="terrData">
/// Terrain data that can result in a meter square heightmap.
/// </param>
/// <param name="x">
/// Array of indexes in the grid of patches
/// for this simulator.
/// If creating a packet for multiple patches, there will be entries in
/// both the X and Y arrays for each of the patches.
/// For example if patches 1 and 17 are to be sent,
/// x[] = {1,1} and y[] = {0,1} which specifies the patches at
/// indexes <1,0> and <1,1> (presuming the terrain size is 16x16 patches).
/// </param>
/// <param name="y">
/// Array of indexes in the grid of patches.
/// </param>
/// <param name="type"></param>
/// <returns></returns>
public static LayerDataPacket CreateLandPacket(HeightMapTerrainData terrData, int[] x, int[] y, byte type)
{
LayerDataPacket layer = new LayerDataPacket {
LayerID = { Type = type }
};
TerrainPatch.GroupHeader header = new TerrainPatch.GroupHeader
{
Stride = STRIDE, PatchSize = Constants.TerrainPatchSize
};
byte[] data = new byte[x.Length * Constants.TerrainPatchSize * Constants.TerrainPatchSize * 2];
BitPack bitpack = new BitPack(data, 0);
bitpack.PackBits(header.Stride, 16);
bitpack.PackBits(header.PatchSize, 8);
bitpack.PackBits(type, 8);
for (int i = 0; i < x.Length; i++)
{
CreatePatchFromHeightmap(bitpack, terrData, x[i], y[i]);
}
bitpack.PackBits(END_OF_PATCHES, 8);
layer.LayerData.Data = new byte[bitpack.BytePos + 1];
Buffer.BlockCopy(bitpack.Data, 0, layer.LayerData.Data, 0, bitpack.BytePos + 1);
return(layer);
}
// Create a land packet for a single patch.
public static LayerDataPacket CreateLandPacket(HeightMapTerrainData terrData, int patchX, int patchY)
{
int[] xPieces = new int[1];
int[] yPieces = new int[1];
xPieces[0] = patchX; // patch X dimension
yPieces[0] = patchY;
return(CreateLandPacket(terrData, xPieces, yPieces));
}
public static LayerDataPacket CreateLandPacket(HeightMapTerrainData terrData, int[] xPieces, int[] yPieces)
{
byte landPacketType = (byte)TerrainPatch.LayerType.Land;
if (terrData.SizeX > Constants.RegionSize || terrData.SizeY > Constants.RegionSize)
{
landPacketType = (byte)TerrainPatch.LayerType.LandExtended;
}
return(CreateLandPacket(terrData, xPieces, yPieces, landPacketType));
}
private static int[] CompressPatch(HeightMapTerrainData terrData, int patchX, int patchY, TerrainPatch.Header header,
int prequant, out int wbits)
{
float[] block = new float[Constants.TerrainPatchSize * Constants.TerrainPatchSize];
int wordsize = prequant;
float oozrange = 1.0f / header.Range;
float range = (1 << prequant);
float premult = oozrange * range;
float sub = (1 << (prequant - 1)) + header.DCOffset * premult;
header.QuantWBits = wordsize - 2;
header.QuantWBits |= (prequant - 2) << 4;
int k = 0;
int yPatchLimit = patchY >= (terrData.SizeY / Constants.TerrainPatchSize) ?
(terrData.SizeY - Constants.TerrainPatchSize) / Constants.TerrainPatchSize : patchY;
yPatchLimit = (yPatchLimit + 1) * Constants.TerrainPatchSize;
int xPatchLimit = patchX >= (terrData.SizeX / Constants.TerrainPatchSize) ?
(terrData.SizeX - Constants.TerrainPatchSize) / Constants.TerrainPatchSize : patchX;
xPatchLimit = (xPatchLimit + 1) * Constants.TerrainPatchSize;
for (int yy = patchY * Constants.TerrainPatchSize; yy < yPatchLimit; yy++)
{
for (int xx = patchX * Constants.TerrainPatchSize; xx < xPatchLimit; xx++)
{
block[k++] = terrData[xx, yy] * premult - sub;
}
}
float[] ftemp = new float[Constants.TerrainPatchSize * Constants.TerrainPatchSize];
int[] itemp = new int[Constants.TerrainPatchSize * Constants.TerrainPatchSize];
int maxWbits = prequant + 5;
wbits = (prequant >> 1);
for (int o = 0; o < Constants.TerrainPatchSize; o++)
{
DCTLine16(block, ftemp, o);
}
for (int o = 0; o < Constants.TerrainPatchSize; o++)
{
wbits = DCTColumn16Wbits(ftemp, itemp, o, wbits, maxWbits);
}
return(itemp);
}
// TerrainData.Clone
public HeightMapTerrainData Clone()
{
HeightMapTerrainData ret = new HeightMapTerrainData(SizeX, SizeY, SizeZ);
ret.m_heightmap = (int[,])this.m_heightmap.Clone();
return ret;
}
/// <summary>
/// Stores the terrain map to DB.
/// </summary>
/// <param name="terrain">terrain map data.</param>
/// <param name="regionID">regionID.</param>
public void StoreTerrain(HeightMapTerrainData terrData, UUID regionID)
{
//Delete old terrain map
string sql = "delete from terrain where RegionUUID=@RegionUUID";
using (SqlConnection conn = new SqlConnection(m_connectionString))
using (SqlCommand cmd = new SqlCommand(sql, conn))
{
cmd.Parameters.Add(_Database.CreateParameter("@RegionUUID", regionID));
conn.Open();
cmd.ExecuteNonQuery();
}
sql = "insert into terrain(RegionUUID, Revision, Heightfield) values(@RegionUUID, @Revision, @Heightfield)";
int terrainDBRevision;
Array terrainDBblob;
terrData.GetDatabaseBlob(out terrainDBRevision, out terrainDBblob);
using (SqlConnection conn = new SqlConnection(m_connectionString))
{
using (SqlCommand cmd = new SqlCommand(sql, conn))
{
cmd.Parameters.Add(_Database.CreateParameter("@RegionUUID", regionID));
cmd.Parameters.Add(_Database.CreateParameter("@Revision", terrainDBRevision));
cmd.Parameters.Add(_Database.CreateParameter("@Heightfield", terrainDBblob));
conn.Open();
cmd.ExecuteNonQuery();
}
}
_Log.InfoFormat("{0} Stored terrain revision r={1}", LogHeader, terrainDBRevision);
}
/// <summary>
/// Store a terrain revision in region storage
/// </summary>
/// <param name="ter">terrain heightfield</param>
/// <param name="regionID">region UUID</param>
public void StoreTerrain(HeightMapTerrainData terrData, UUID regionID)
{
lock (this)
{
using (
SqliteCommand cmd = new SqliteCommand("delete from terrain where RegionUUID=:RegionUUID", m_conn))
{
cmd.Parameters.Add(new SqliteParameter(":RegionUUID", regionID.ToString()));
cmd.ExecuteNonQuery();
}
// the following is an work around for .NET. The perf
// issues associated with it aren't as bad as you think.
String sql = "insert into terrain(RegionUUID, Revision, Heightfield)" +
" values(:RegionUUID, :Revision, :Heightfield)";
int terrainDBRevision;
Array terrainDBblob;
terrData.GetDatabaseBlob(out terrainDBRevision, out terrainDBblob);
m_log.DebugFormat("{0} Storing terrain revision r {1}", LogHeader, terrainDBRevision);
using (SqliteCommand cmd = new SqliteCommand(sql, m_conn))
{
cmd.Parameters.Add(new SqliteParameter(":RegionUUID", regionID.ToString()));
cmd.Parameters.Add(new SqliteParameter(":Revision", terrainDBRevision));
cmd.Parameters.Add(new SqliteParameter(":Heightfield", terrainDBblob));
cmd.ExecuteNonQuery();
}
}
}
public static LayerDataPacket CreateLandPacket(HeightMapTerrainData terrData, int[] xPieces, int[] yPieces)
{
byte landPacketType = (byte)TerrainPatch.LayerType.Land;
if (terrData.SizeX > Constants.RegionSize || terrData.SizeY > Constants.RegionSize)
{
landPacketType = (byte)TerrainPatch.LayerType.LandExtended;
}
return CreateLandPacket(terrData, xPieces, yPieces, landPacketType);
}
public void StoreTerrain(HeightMapTerrainData terrData, UUID regionID)
{
using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
{
dbcon.Open();
using (MySqlCommand cmd = dbcon.CreateCommand())
{
cmd.CommandText = "delete from terrain where RegionUUID = ?RegionUUID";
cmd.Parameters.AddWithValue("RegionUUID", regionID.ToString());
ExecuteNonQuery(cmd);
int terrainDBRevision;
Array terrainDBblob;
terrData.GetDatabaseBlob(out terrainDBRevision, out terrainDBblob);
m_log.InfoFormat("{0} Storing terrain. X={1}, Y={2}, rev={3}",
LogHeader, terrData.SizeX, terrData.SizeY, terrainDBRevision);
cmd.CommandText = "insert into terrain (RegionUUID, Revision, Heightfield)"
+ "values (?RegionUUID, ?Revision, ?Heightfield)";
cmd.Parameters.AddWithValue("Revision", terrainDBRevision);
cmd.Parameters.AddWithValue("Heightfield", terrainDBblob);
ExecuteNonQuery(cmd);
}
}
}
private static int[] CompressPatch(HeightMapTerrainData terrData, int patchX, int patchY, TerrainPatch.Header header,
int prequant, out int wbits)
{
float[] block = new float[Constants.TerrainPatchSize*Constants.TerrainPatchSize];
int wordsize = prequant;
float oozrange = 1.0f/header.Range;
float range = (1 << prequant);
float premult = oozrange*range;
float sub = (1 << (prequant - 1)) + header.DCOffset*premult;
header.QuantWBits = wordsize - 2;
header.QuantWBits |= (prequant - 2) << 4;
int k = 0;
int yPatchLimit = patchY >= (terrData.SizeY / Constants.TerrainPatchSize) ?
(terrData.SizeY - Constants.TerrainPatchSize) / Constants.TerrainPatchSize : patchY;
yPatchLimit = (yPatchLimit + 1) * Constants.TerrainPatchSize;
int xPatchLimit = patchX >= (terrData.SizeX / Constants.TerrainPatchSize) ?
(terrData.SizeX - Constants.TerrainPatchSize) / Constants.TerrainPatchSize : patchX;
xPatchLimit = (xPatchLimit + 1) * Constants.TerrainPatchSize;
for (int yy = patchY * Constants.TerrainPatchSize; yy < yPatchLimit; yy++)
{
for (int xx = patchX * Constants.TerrainPatchSize; xx < xPatchLimit; xx++)
{
block[k++] = terrData[xx, yy] * premult - sub;
}
}
float[] ftemp = new float[Constants.TerrainPatchSize*Constants.TerrainPatchSize];
int[] itemp = new int[Constants.TerrainPatchSize*Constants.TerrainPatchSize];
int maxWbits = prequant + 5;
wbits = (prequant >> 1);
for (int o = 0; o < Constants.TerrainPatchSize; o++)
DCTLine16(block, ftemp, o);
for (int o = 0; o < Constants.TerrainPatchSize; o++)
wbits = DCTColumn16Wbits(ftemp, itemp, o, wbits, maxWbits);
return itemp;
}
// Scan the height info we're returning and return a patch packet header for this patch.
private static TerrainPatch.Header PrescanPatch(HeightMapTerrainData terrData, int patchX, int patchY)
{
TerrainPatch.Header header = new TerrainPatch.Header();
float zmax = -99999999.0f;
float zmin = 99999999.0f;
for (int j = patchY*Constants.TerrainPatchSize; j < (patchY + 1)*Constants.TerrainPatchSize; j++)
{
for (int i = patchX*Constants.TerrainPatchSize; i < (patchX + 1)*Constants.TerrainPatchSize; i++)
{
float val = terrData[i, j];
if (val > zmax) zmax = val;
if (val < zmin) zmin = val;
}
}
header.DCOffset = zmin;
header.Range = (int)((zmax - zmin) + 1.0f);
return header;
}
/// <summary>
/// Add a patch of terrain to a BitPacker
/// </summary>
/// <param name="output">BitPacker to write the patch to</param>
/// <param name="heightmap">
/// Heightmap of the simulator. Presumed to be an sizeX*sizeY array.
/// </param>
/// <param name="patchX">
/// X offset of the patch to create.
/// </param>
/// <param name="patchY">
/// Y offset of the patch to create.
/// </param>
/// <param name="pRegionSizeX"></param>
/// <param name="pRegionSizeY"></param>
public static void CreatePatchFromHeightmap(BitPack output, HeightMapTerrainData terrData, int patchX, int patchY)
{
TerrainPatch.Header header = PrescanPatch(terrData, patchX, patchY);
header.QuantWBits = 136;
// If larger than legacy region size, pack patch X and Y info differently.
if (terrData.SizeX > Constants.RegionSize || terrData.SizeY > Constants.RegionSize)
{
header.PatchIDs = (patchY & 0xFFFF);
header.PatchIDs += (patchX << 16);
}
else
{
header.PatchIDs = (patchY & 0x1F);
header.PatchIDs += (patchX << 5);
}
// m_log.DebugFormat("{0} CreatePatchFromHeightmap. patchX={1}, patchY={2}, DCOffset={3}, range={4}",
// LogHeader, patchX, patchY, header.DCOffset, header.Range);
// NOTE: No idea what prequant and postquant should be or what they do
int wbits;
int[] patch = CompressPatch(terrData, patchX, patchY, header, 10, out wbits);
wbits = EncodePatchHeader(output, header, patch, (uint)terrData.SizeX, (uint)terrData.SizeY, wbits);
EncodePatch(output, patch, 0, wbits);
}
/// <summary>
/// Creates a LayerData packet for compressed land data given a full
/// simulator heightmap and an array of indices of patches to compress
/// </summary>
/// <param name="terrData">
/// Terrain data that can result in a meter square heightmap.
/// </param>
/// <param name="x">
/// Array of indexes in the grid of patches
/// for this simulator.
/// If creating a packet for multiple patches, there will be entries in
/// both the X and Y arrays for each of the patches.
/// For example if patches 1 and 17 are to be sent,
/// x[] = {1,1} and y[] = {0,1} which specifies the patches at
/// indexes <1,0> and <1,1> (presuming the terrain size is 16x16 patches).
/// </param>
/// <param name="y">
/// Array of indexes in the grid of patches.
/// </param>
/// <param name="type"></param>
/// <returns></returns>
public static LayerDataPacket CreateLandPacket(HeightMapTerrainData terrData, int[] x, int[] y, byte type)
{
LayerDataPacket layer = new LayerDataPacket {LayerID = {Type = type}};
TerrainPatch.GroupHeader header = new TerrainPatch.GroupHeader
{Stride = STRIDE, PatchSize = Constants.TerrainPatchSize};
byte[] data = new byte[x.Length * Constants.TerrainPatchSize * Constants.TerrainPatchSize * 2];
BitPack bitpack = new BitPack(data, 0);
bitpack.PackBits(header.Stride, 16);
bitpack.PackBits(header.PatchSize, 8);
bitpack.PackBits(type, 8);
for (int i = 0; i < x.Length; i++)
CreatePatchFromHeightmap(bitpack, terrData, x[i], y[i]);
bitpack.PackBits(END_OF_PATCHES, 8);
layer.LayerData.Data = new byte[bitpack.BytePos + 1];
Buffer.BlockCopy(bitpack.Data, 0, layer.LayerData.Data, 0, bitpack.BytePos + 1);
return layer;
}
// Legacy. Just don't do this.
public void StoreTerrain(double[,] ter, UUID regionID)
{
HeightMapTerrainData terrData = new HeightMapTerrainData(ter);
StoreTerrain(terrData, regionID);
}
/// <summary>
/// Stores the terrain map to DB.
/// </summary>
/// <param name="terrain">terrain map data.</param>
/// <param name="regionID">regionID.</param>
public void StoreTerrain(HeightMapTerrainData terrData, UUID regionID)
{
//Delete old terrain map
string sql = @"delete from terrain where ""RegionUUID""=:RegionUUID";
using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
{
using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
{
cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", regionID));
conn.Open();
cmd.ExecuteNonQuery();
_Log.InfoFormat("{0} Deleted terrain revision id = {1}", LogHeader, regionID);
}
}
int terrainDBRevision;
Array terrainDBblob;
terrData.GetDatabaseBlob(out terrainDBRevision, out terrainDBblob);
sql = @"insert into terrain(""RegionUUID"", ""Revision"", ""Heightfield"") values(:RegionUUID, :Revision, :Heightfield)";
using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
{
using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
{
cmd.Parameters.Add(_Database.CreateParameter("RegionUUID", regionID));
cmd.Parameters.Add(_Database.CreateParameter("Revision", terrainDBRevision));
cmd.Parameters.Add(_Database.CreateParameter("Heightfield", terrainDBblob));
conn.Open();
cmd.ExecuteNonQuery();
_Log.InfoFormat("{0} Stored terrain id = {1}, terrainSize = <{2},{3}>",
LogHeader, regionID, terrData.SizeX, terrData.SizeY);
}
}
}
// Create a land packet for a single patch.
public static LayerDataPacket CreateLandPacket(HeightMapTerrainData terrData, int patchX, int patchY)
{
int[] xPieces = new int[1];
int[] yPieces = new int[1];
xPieces[0] = patchX; // patch X dimension
yPieces[0] = patchY;
return CreateLandPacket(terrData, xPieces, yPieces);
}
public void StoreTerrain(HeightMapTerrainData terrain, UUID regionID)
{
m_database.StoreTerrain(terrain, regionID);
}
public void StoreTerrain(HeightMapTerrainData ter, UUID regionID)
{
m_terrains[regionID] = ter;
}