opensim – Blame information for rev 1

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1 eva 1 /*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27  
28 using System;
29 using System.Drawing;
30 using System.Drawing.Imaging;
31 using System.IO;
32 using OpenSim.Region.Framework.Interfaces;
33  
34 namespace OpenSim.Region.CoreModules.World.Terrain.FileLoaders
35 {
36 public class JPEG : ITerrainLoader
37 {
38 #region ITerrainLoader Members
39  
40 public string FileExtension
41 {
42 get { return ".jpg"; }
43 }
44  
45 public ITerrainChannel LoadFile(string filename)
46 {
47 throw new NotImplementedException();
48 }
49  
50 public ITerrainChannel LoadFile(string filename, int x, int y, int fileWidth, int fileHeight, int w, int h)
51 {
52 throw new NotImplementedException();
53 }
54  
55 public ITerrainChannel LoadStream(Stream stream)
56 {
57 throw new NotImplementedException();
58 }
59  
60 public void SaveFile(string filename, ITerrainChannel map)
61 {
62 Bitmap colours = CreateBitmapFromMap(map);
63  
64 colours.Save(filename, ImageFormat.Jpeg);
65 }
66  
67 /// <summary>
68 /// Exports a stream using a System.Drawing exporter.
69 /// </summary>
70 /// <param name="stream">The target stream</param>
71 /// <param name="map">The terrain channel being saved</param>
72 public void SaveStream(Stream stream, ITerrainChannel map)
73 {
74 Bitmap colours = CreateBitmapFromMap(map);
75  
76 colours.Save(stream, ImageFormat.Jpeg);
77 }
78  
79 public virtual void SaveFile(ITerrainChannel m_channel, string filename,
80 int offsetX, int offsetY,
81 int fileWidth, int fileHeight,
82 int regionSizeX, int regionSizeY)
83 {
84 throw new System.Exception("Not Implemented");
85 }
86  
87 #endregion
88  
89 public override string ToString()
90 {
91 return "JPEG";
92 }
93  
94 //Returns true if this extension is supported for terrain save-tile
95 public bool SupportsTileSave()
96 {
97 return false;
98 }
99  
100 private static Bitmap CreateBitmapFromMap(ITerrainChannel map)
101 {
102 int pallete;
103 Bitmap bmp;
104 Color[] colours;
105  
106 using (Bitmap gradientmapLd = new Bitmap("defaultstripe.png"))
107 {
108 pallete = gradientmapLd.Height;
109  
110 bmp = new Bitmap(map.Width, map.Height);
111 colours = new Color[pallete];
112  
113 for (int i = 0; i < pallete; i++)
114 {
115 colours[i] = gradientmapLd.GetPixel(0, i);
116 }
117 }
118  
119 for (int y = 0; y < map.Height; y++)
120 {
121 for (int x = 0; x < map.Width; x++)
122 {
123 // 512 is the largest possible height before colours clamp
124 int colorindex = (int) (Math.Max(Math.Min(1.0, map[x, y] / 512.0), 0.0) * (pallete - 1));
125 bmp.SetPixel(x, map.Height - y - 1, colours[colorindex]);
126 }
127 }
128 return bmp;
129 }
130 }
131 }