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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 OpenSim 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.
*/
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using OpenSim.Region.Environment.Interfaces;
namespace OpenSim.Region.Environment.Modules.World.Terrain.FileLoaders
{
public class JPEG : ITerrainLoader
{
#region ITerrainLoader Members
public string FileExtension
{
get { return ".jpg"; }
}
public ITerrainChannel LoadFile(string filename)
{
throw new NotImplementedException();
}
public ITerrainChannel LoadFile(string filename, int x, int y, int fileWidth, int fileHeight, int w, int h)
{
throw new NotImplementedException();
}
public ITerrainChannel LoadStream(Stream stream)
{
throw new NotImplementedException();
}
public void SaveFile(string filename, ITerrainChannel map)
{
Bitmap colours = CreateBitmapFromMap(map);
colours.Save(filename, ImageFormat.Jpeg);
}
/// <summary>
/// Exports a stream using a System.Drawing exporter.
/// </summary>
/// <param name="stream">The target stream</param>
/// <param name="map">The terrain channel being saved</param>
public void SaveStream(Stream stream, ITerrainChannel map)
{
Bitmap colours = CreateBitmapFromMap(map);
colours.Save(stream, ImageFormat.Jpeg);
}
#endregion
public override string ToString()
{
return "JPEG";
}
private static Bitmap CreateBitmapFromMap(ITerrainChannel map)
{
Bitmap gradientmapLd = new Bitmap("defaultstripe.png");
int pallete = gradientmapLd.Height;
Bitmap bmp = new Bitmap(map.Width, map.Height);
Color[] colours = new Color[pallete];
for (int i = 0; i < pallete; i++)
{
colours[i] = gradientmapLd.GetPixel(0, i);
}
for (int y = 0; y < map.Height; y++)
{
for (int x = 0; x < map.Width; x++)
{
// 512 is the largest possible height before colours clamp
int colorindex = (int) (Math.Max(Math.Min(1.0, map[x, y] / 512.0), 0.0) * (pallete - 1));
bmp.SetPixel(x, map.Height - y - 1, colours[colorindex]);
}
}
return bmp;
}
}
}
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