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DataMosaicTile.cs    428 lines (348 with data), 12.5 kB

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using System;
using System.Diagnostics;
using System.IO;
using Axiom.Core;
using Axiom.Math;
using Axiom.Media;
using Tao.DevIl;
namespace Axiom.SceneManagers.Multiverse
{
public class DataMosaicTile : MosaicTile
{
protected TileData tileData;
public DataMosaicTile(Mosaic parent, int tileSizeSamples, float metersPerSample, int tileLocationX, int tileLocationZ, Vector3 worldLocMM)
: base(parent, tileSizeSamples, metersPerSample, tileLocationX, tileLocationZ, worldLocMM)
{
}
public override void Load()
{
if (available && !loaded)
{
// swap the z coord of the tiles to deal with our -Z = north coordinate system
int loadTileZ = parent.MosaicDesc.SizeZTiles - 1 - tileZ;
string filename =
string.Format("{0}_x{1}y{2}.{3}", parent.BaseName, tileX, loadTileZ, parent.MosaicDesc.FileExt);
Image img;
if (ResourceManager.HasCommonResourceData(filename))
{
Stream s = ResourceManager.FindCommonResourceData(filename);
img = Image.FromStream(s, parent.MosaicDesc.FileExt);
s.Close();
}
else
{
// Create a new image
byte[] buffer = new byte[tileSizeSamples * tileSizeSamples * 2];
img = Image.FromDynamicImage(buffer, tileSizeSamples, tileSizeSamples, PixelFormat.L16);
Modified = true;
}
Debug.Assert(tileSizeSamples == img.Width);
Debug.Assert(tileSizeSamples == img.Height);
switch (img.Format)
{
case PixelFormat.A8:
case PixelFormat.L8:
tileData = new TileData8(img);
break;
case PixelFormat.L16:
tileData = new TileData16(img);
break;
case PixelFormat.R8G8B8:
case PixelFormat.B8G8R8:
tileData = new TileData24(img);
break;
case PixelFormat.A8R8G8B8:
case PixelFormat.A8B8G8R8:
case PixelFormat.B8G8R8A8:
case PixelFormat.R8G8B8A8:
tileData = new TileData32(img);
break;
default:
throw new ArgumentException("Pixel format " + img.Format + " is not currently supported.");
}
if (tileData != null)
{
loaded = true;
}
}
}
public override void Save(bool force)
{
if (!force && !Modified)
{
return;
}
string ext = parent.MosaicDesc.FileExt;
// swap the z coord of the tiles to deal with our -Z = north coordinate system
int loadTileZ = parent.MosaicDesc.SizeZTiles - 1 - tileZ;
string tileName = string.Format("{0}_x{1}y{2}.{3}", parent.BaseName, tileX, loadTileZ, ext);
string fileName;
if (ResourceManager.HasCommonResourceData(tileName))
{
fileName = ResourceManager.GetCommonResourceDataFilePath(tileName);
}
else
{
string saveDir = parent.MosaicDesc.DefaultTerrainSaveDirectory;
fileName = Path.Combine(saveDir, tileName);
if (!Directory.Exists(saveDir))
{
Directory.CreateDirectory(saveDir);
}
//ResourceManager.AddCommonSearchPath(saveDir);
}
TaoImage image = new TaoImage(tileSizeSamples, tileSizeSamples,
tileData.BytesPerSample, tileData.IlFormat);
for (int z = 0; z < tileSizeSamples; z++)
{
for (int x = 0; x < tileSizeSamples; x++)
{
uint heightData = tileData.GetData(x, z);
image.SetPixel(x, z, heightData);
}
}
if (File.Exists(fileName))
{
File.Delete(fileName);
}
image.Save(fileName);
if (Modified)
{
Modified = false;
}
}
/// <summary>
/// Get the raw data from the data map
/// </summary>
/// <param name="sampleX">x coord in samples within this tile</param>
/// <param name="sampleZ">z coord in samples within this tile</param>
/// <returns></returns>
public uint GetData(int sampleX, int sampleZ)
{
if (!loaded)
{
Load();
}
return tileData.GetData(sampleX, sampleZ);
}
/// <summary>
/// Get the value from the data map normalized to be between 0 and 1
/// </summary>
/// <param name="sampleX"></param>
/// <param name="sampleZ"></param>
/// <returns></returns>
public float GetDataNormalized(int sampleX, int sampleZ)
{
if (!loaded)
{
Load();
}
return tileData.GetData(sampleX, sampleZ) / (float)tileData.MaxValue;
}
/// <summary>
/// Set the value from the data map normalized to be between 0 and 1
/// </summary>
/// <param name="sampleX"></param>
/// <param name="sampleZ"></param>
/// <param name="normalizedHeight"></param>
/// <returns></returns>
public void SetDataNormalized(int sampleX, int sampleZ, float normalizedHeight)
{
if (!loaded)
{
Load();
}
tileData.SetData(sampleX, sampleZ, (uint)((double)normalizedHeight * (double)tileData.MaxValue));
Modified = true;
FireTileChanged(sampleX, sampleZ, 1, 1);
}
}
#region TileData Classes
#region TileData Base
public abstract class TileData
{
protected int size;
protected PixelFormat format;
protected TileData(Image img)
{
Debug.Assert(img.Width == img.Height);
size = img.Width;
format = img.Format;
}
public abstract uint GetData(int x, int z);
public abstract void SetData(int x, int z, uint height);
public abstract uint MaxValue { get; }
public abstract int BytesPerSample { get; }
public abstract int IlFormat { get; }
}
#endregion TileData Base
#region TileData8
public class TileData8 : TileData
{
public override int BytesPerSample { get { return 1; } }
public override int IlFormat { get { return Il.IL_LUMINANCE; } }
readonly byte[] data;
public TileData8(Image img)
: base(img)
{
Debug.Assert((img.Format == PixelFormat.L8) || (img.Format == PixelFormat.A8));
data = new byte[size * size];
LoadData(img);
}
protected void LoadData(Image img)
{
for (int i = 0; i < size * size; i++)
{
data[i] = img.Data[i];
}
}
public override uint GetData(int x, int z)
{
return data[x + z * size];
}
public override void SetData(int x, int z, uint height)
{
data[x + z * size] = (byte)height;
}
public override uint MaxValue
{
get
{
return 0xff;
}
}
}
#endregion TileData8
#region TileData16
public class TileData16 : TileData
{
public override int BytesPerSample { get { return 2; } }
public override int IlFormat { get { return Il.IL_LUMINANCE; } }
readonly ushort[] data;
public TileData16(Image img)
: base(img)
{
Debug.Assert(img.Format == PixelFormat.L16);
data = new ushort[size * size];
LoadData(img);
}
protected void LoadData(Image img)
{
for (int i = 0; i < size * size; i++)
{
int j = i * 2;
ushort lo = img.Data[j];
ushort hi = img.Data[j + 1];
data[i] = (ushort)(lo + (hi << 8));
}
}
public override uint GetData(int x, int z)
{
return data[x + z * size];
}
public override void SetData(int x, int z, uint height)
{
data[x + z * size] = (ushort)height;
}
public override uint MaxValue
{
get
{
return 0xffff;
}
}
}
#endregion TileData16
#region TileData24
public class TileData24 : TileData
{
public override int BytesPerSample { get { return 3; } }
public override int IlFormat { get { return Il.IL_RGB; } }
readonly byte[] data;
public TileData24(Image img)
: base(img)
{
Debug.Assert((img.Format == PixelFormat.R8G8B8) || (img.Format == PixelFormat.B8G8R8));
data = new byte[size * size * 3];
LoadData(img);
}
protected void LoadData(Image img)
{
for (int i = 0; i < size * size * 3; i++)
{
data[i] = img.Data[i];
}
}
public override uint GetData(int x, int z)
{
int offset = (x + z * size) * 3;
uint val = (uint)(data[offset + 0] | (data[offset + 1] << 8) | (data[offset + 2] << 16));
return val;
}
public override void SetData(int x, int z, uint height)
{
byte b3 = (byte)height;
height >>= 8;
byte b2 = (byte)height;
height >>= 8;
byte b1 = (byte)height;
int offset = (x + z * size) * 3;
data[offset + 0] = b1;
data[offset + 1] = b2;
data[offset + 2] = b3;
}
public override uint MaxValue
{
get
{
return 0xffffff;
}
}
}
#endregion TileData24
#region TileData32
public class TileData32 : TileData
{
public override int BytesPerSample { get { return 4; } }
public override int IlFormat { get { return Il.IL_RGBA; } }
readonly uint[] data;
public TileData32(Image img)
: base(img)
{
Debug.Assert((img.Format == PixelFormat.A8B8G8R8) || (img.Format == PixelFormat.A8R8G8B8) ||
(img.Format == PixelFormat.B8G8R8A8) || img.Format == PixelFormat.R8G8B8A8 ||
img.Format == PixelFormat.X8R8G8B8 || img.Format == PixelFormat.X8B8G8R8);
data = new uint[size * size];
LoadData(img);
}
protected void LoadData(Image img)
{
for (int i = 0; i < size * size; i++)
{
int j = i * 4;
uint val = (uint)(img.Data[j] |
(img.Data[j + 1] << 8) |
(img.Data[j + 2] << 16) |
(img.Data[j + 3] << 24));
data[i] = val;
}
}
public override uint GetData(int x, int z)
{
return data[x + z * size];
}
public override void SetData(int x, int z, uint height)
{
data[x + z * size] = height;
}
public override uint MaxValue
{
get
{
return 0xffffffff;
}
}
}
#endregion TileData32
#endregion TileData Classes
}