clockwerk-opensim – Blame information for rev 1
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1 | vero | 1 | /* |
2 | * Copyright (c) Contributors, http://opensimulator.org/ |
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3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions are met: |
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7 | * * Redistributions of source code must retain the above copyright |
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8 | * notice, this list of conditions and the following disclaimer. |
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9 | * * Redistributions in binary form must reproduce the above copyright |
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10 | * notice, this list of conditions and the following disclaimer in the |
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11 | * documentation and/or other materials provided with the distribution. |
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12 | * * Neither the name of the OpenSimulator Project nor the |
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13 | * names of its contributors may be used to endorse or promote products |
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14 | * derived from this software without specific prior written permission. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY |
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17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY |
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20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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26 | * |
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27 | * The design of this map service is based on SimianGrid's PHP-based |
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28 | * map service. See this URL for the original PHP version: |
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29 | * https://github.com/openmetaversefoundation/simiangrid/ |
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30 | */ |
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31 | |||
32 | using System; |
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33 | using System.Collections.Generic; |
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34 | using System.Drawing; |
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35 | using System.Drawing.Imaging; |
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36 | using System.IO; |
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37 | using System.Net; |
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38 | using System.Reflection; |
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39 | using System.Threading; |
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40 | |||
41 | using Nini.Config; |
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42 | using log4net; |
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43 | using OpenMetaverse; |
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44 | |||
45 | using OpenSim.Framework; |
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46 | using OpenSim.Framework.Console; |
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47 | using OpenSim.Services.Interfaces; |
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48 | |||
49 | |||
50 | namespace OpenSim.Services.MapImageService |
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51 | { |
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52 | public class MapImageService : IMapImageService |
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53 | { |
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54 | private static readonly ILog m_log = |
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55 | LogManager.GetLogger( |
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56 | MethodBase.GetCurrentMethod().DeclaringType); |
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57 | #pragma warning disable 414 |
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58 | private string LogHeader = "[MAP IMAGE SERVICE]"; |
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59 | #pragma warning restore 414 |
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60 | |||
61 | private const int ZOOM_LEVELS = 8; |
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62 | private const int IMAGE_WIDTH = 256; |
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63 | private const int HALF_WIDTH = 128; |
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64 | private const int JPEG_QUALITY = 80; |
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65 | |||
66 | private static string m_TilesStoragePath = "maptiles"; |
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67 | |||
68 | private static object m_Sync = new object(); |
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69 | private static bool m_Initialized = false; |
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70 | private static string m_WaterTileFile = string.Empty; |
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71 | private static Color m_Watercolor = Color.FromArgb(29, 71, 95); |
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72 | |||
73 | public MapImageService(IConfigSource config) |
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74 | { |
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75 | if (!m_Initialized) |
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76 | { |
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77 | m_Initialized = true; |
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78 | m_log.Debug("[MAP IMAGE SERVICE]: Starting MapImage service"); |
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79 | |||
80 | IConfig serviceConfig = config.Configs["MapImageService"]; |
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81 | if (serviceConfig != null) |
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82 | { |
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83 | m_TilesStoragePath = serviceConfig.GetString("TilesStoragePath", m_TilesStoragePath); |
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84 | if (!Directory.Exists(m_TilesStoragePath)) |
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85 | Directory.CreateDirectory(m_TilesStoragePath); |
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86 | |||
87 | |||
88 | m_WaterTileFile = Path.Combine(m_TilesStoragePath, "water.jpg"); |
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89 | if (!File.Exists(m_WaterTileFile)) |
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90 | { |
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91 | Bitmap waterTile = new Bitmap(IMAGE_WIDTH, IMAGE_WIDTH); |
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92 | FillImage(waterTile, m_Watercolor); |
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93 | waterTile.Save(m_WaterTileFile, ImageFormat.Jpeg); |
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94 | } |
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95 | } |
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96 | } |
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97 | } |
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98 | |||
99 | #region IMapImageService |
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100 | |||
101 | public bool AddMapTile(int x, int y, byte[] imageData, out string reason) |
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102 | { |
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103 | reason = string.Empty; |
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104 | string fileName = GetFileName(1, x, y); |
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105 | |||
106 | lock (m_Sync) |
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107 | { |
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108 | try |
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109 | { |
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110 | using (FileStream f = File.Open(fileName, FileMode.OpenOrCreate, FileAccess.Write)) |
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111 | f.Write(imageData, 0, imageData.Length); |
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112 | } |
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113 | catch (Exception e) |
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114 | { |
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115 | m_log.WarnFormat("[MAP IMAGE SERVICE]: Unable to save image file {0}: {1}", fileName, e); |
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116 | reason = e.Message; |
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117 | return false; |
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118 | } |
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119 | } |
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120 | |||
121 | return UpdateMultiResolutionFilesAsync(x, y, out reason); |
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122 | } |
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123 | |||
124 | public bool RemoveMapTile(int x, int y, out string reason) |
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125 | { |
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126 | reason = String.Empty; |
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127 | string fileName = GetFileName(1, x, y); |
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128 | |||
129 | lock (m_Sync) |
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130 | { |
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131 | try |
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132 | { |
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133 | File.Delete(fileName); |
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134 | } |
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135 | catch (Exception e) |
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136 | { |
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137 | m_log.WarnFormat("[MAP IMAGE SERVICE]: Unable to save delete file {0}: {1}", fileName, e); |
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138 | reason = e.Message; |
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139 | return false; |
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140 | } |
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141 | } |
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142 | |||
143 | return UpdateMultiResolutionFilesAsync(x, y, out reason); |
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144 | } |
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145 | |||
146 | // When large varregions start up, they can send piles of new map tiles. This causes |
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147 | // this multi-resolution routine to be called a zillion times an causes much CPU |
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148 | // time to be spent creating multi-resolution tiles that will be replaced when |
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149 | // the next maptile arrives. |
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150 | private class mapToMultiRez |
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151 | { |
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152 | public int xx; |
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153 | public int yy; |
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154 | public mapToMultiRez(int pX, int pY) |
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155 | { |
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156 | xx = pX; |
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157 | yy = pY; |
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158 | } |
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159 | }; |
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160 | private Queue<mapToMultiRez> multiRezToBuild = new Queue<mapToMultiRez>(); |
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161 | private bool UpdateMultiResolutionFilesAsync(int x, int y, out string reason) |
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162 | { |
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163 | reason = String.Empty; |
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164 | lock (multiRezToBuild) |
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165 | { |
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166 | // m_log.DebugFormat("{0} UpdateMultiResolutionFilesAsync: scheduling update for <{1},{2}>", LogHeader, x, y); |
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167 | multiRezToBuild.Enqueue(new mapToMultiRez(x, y)); |
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168 | if (multiRezToBuild.Count == 1) |
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169 | Util.FireAndForget(DoUpdateMultiResolutionFilesAsync); |
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170 | } |
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171 | |||
172 | return true; |
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173 | } |
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174 | |||
175 | private void DoUpdateMultiResolutionFilesAsync(object o) |
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176 | { |
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177 | // This sleep causes the FireAndForget thread to be different than the invocation thread. |
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178 | // It also allows other tiles to be uploaded so the multi-rez images are more likely |
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179 | // to be correct. |
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180 | Thread.Sleep(1 * 1000); |
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181 | |||
182 | while (multiRezToBuild.Count > 0) |
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183 | { |
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184 | mapToMultiRez toMultiRez = null; |
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185 | lock (multiRezToBuild) |
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186 | { |
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187 | if (multiRezToBuild.Count > 0) |
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188 | toMultiRez = multiRezToBuild.Dequeue(); |
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189 | } |
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190 | if (toMultiRez != null) |
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191 | { |
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192 | int x = toMultiRez.xx; |
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193 | int y = toMultiRez.yy; |
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194 | // m_log.DebugFormat("{0} DoUpdateMultiResolutionFilesAsync: doing build for <{1},{2}>", LogHeader, x, y); |
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195 | |||
196 | // Stitch seven more aggregate tiles together |
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197 | for (uint zoomLevel = 2; zoomLevel <= ZOOM_LEVELS; zoomLevel++) |
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198 | { |
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199 | // Calculate the width (in full resolution tiles) and bottom-left |
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200 | // corner of the current zoom level |
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201 | int width = (int)Math.Pow(2, (double)(zoomLevel - 1)); |
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202 | int x1 = x - (x % width); |
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203 | int y1 = y - (y % width); |
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204 | |||
205 | lock (m_Sync) // must lock the reading and writing of the maptile files |
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206 | { |
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207 | if (!CreateTile(zoomLevel, x1, y1)) |
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208 | { |
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209 | m_log.WarnFormat("[MAP IMAGE SERVICE]: Unable to create tile for {0},{1} at zoom level {1}", x, y, zoomLevel); |
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210 | return; |
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211 | } |
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212 | } |
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213 | } |
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214 | } |
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215 | } |
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216 | |||
217 | return; |
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218 | } |
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219 | |||
220 | public byte[] GetMapTile(string fileName, out string format) |
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221 | { |
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222 | // m_log.DebugFormat("[MAP IMAGE SERVICE]: Getting map tile {0}", fileName); |
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223 | |||
224 | format = ".jpg"; |
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225 | string fullName = Path.Combine(m_TilesStoragePath, fileName); |
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226 | if (File.Exists(fullName)) |
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227 | { |
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228 | format = Path.GetExtension(fileName).ToLower(); |
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229 | //m_log.DebugFormat("[MAP IMAGE SERVICE]: Found file {0}, extension {1}", fileName, format); |
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230 | return File.ReadAllBytes(fullName); |
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231 | } |
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232 | else if (File.Exists(m_WaterTileFile)) |
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233 | { |
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234 | return File.ReadAllBytes(m_WaterTileFile); |
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235 | } |
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236 | else |
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237 | { |
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238 | m_log.DebugFormat("[MAP IMAGE SERVICE]: unable to get file {0}", fileName); |
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239 | return new byte[0]; |
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240 | } |
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241 | } |
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242 | |||
243 | #endregion |
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244 | |||
245 | |||
246 | private string GetFileName(uint zoomLevel, int x, int y) |
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247 | { |
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248 | string extension = "jpg"; |
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249 | return Path.Combine(m_TilesStoragePath, string.Format("map-{0}-{1}-{2}-objects.{3}", zoomLevel, x, y, extension)); |
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250 | } |
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251 | |||
252 | private Bitmap GetInputTileImage(string fileName) |
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253 | { |
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254 | try |
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255 | { |
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256 | if (File.Exists(fileName)) |
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257 | return new Bitmap(fileName); |
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258 | } |
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259 | catch (Exception e) |
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260 | { |
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261 | m_log.WarnFormat("[MAP IMAGE SERVICE]: Unable to read image data from {0}: {1}", fileName, e); |
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262 | } |
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263 | |||
264 | return null; |
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265 | } |
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266 | |||
267 | private Bitmap GetOutputTileImage(string fileName) |
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268 | { |
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269 | try |
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270 | { |
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271 | if (File.Exists(fileName)) |
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272 | return new Bitmap(fileName); |
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273 | |||
274 | else |
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275 | { |
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276 | // Create a new output tile with a transparent background |
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277 | Bitmap bm = new Bitmap(IMAGE_WIDTH, IMAGE_WIDTH, PixelFormat.Format24bppRgb); |
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278 | bm.MakeTransparent(); |
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279 | return bm; |
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280 | } |
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281 | } |
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282 | catch (Exception e) |
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283 | { |
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284 | m_log.WarnFormat("[MAP IMAGE SERVICE]: Unable to read image data from {0}: {1}", fileName, e); |
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285 | } |
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286 | |||
287 | return null; |
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288 | } |
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289 | |||
290 | private bool CreateTile(uint zoomLevel, int x, int y) |
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291 | { |
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292 | // m_log.DebugFormat("[MAP IMAGE SERVICE]: Create tile for {0} {1}, zoom {2}", x, y, zoomLevel); |
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293 | int prevWidth = (int)Math.Pow(2, (double)zoomLevel - 2); |
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294 | int thisWidth = (int)Math.Pow(2, (double)zoomLevel - 1); |
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295 | |||
296 | // Convert x and y to the bottom left tile for this zoom level |
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297 | int xIn = x - (x % prevWidth); |
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298 | int yIn = y - (y % prevWidth); |
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299 | |||
300 | // Convert x and y to the bottom left tile for the next zoom level |
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301 | int xOut = x - (x % thisWidth); |
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302 | int yOut = y - (y % thisWidth); |
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303 | |||
304 | // Try to open the four input tiles from the previous zoom level |
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305 | Bitmap inputBL = GetInputTileImage(GetFileName(zoomLevel - 1, xIn, yIn)); |
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306 | Bitmap inputBR = GetInputTileImage(GetFileName(zoomLevel - 1, xIn + prevWidth, yIn)); |
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307 | Bitmap inputTL = GetInputTileImage(GetFileName(zoomLevel - 1, xIn, yIn + prevWidth)); |
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308 | Bitmap inputTR = GetInputTileImage(GetFileName(zoomLevel - 1, xIn + prevWidth, yIn + prevWidth)); |
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309 | |||
310 | // Open the output tile (current zoom level) |
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311 | string outputFile = GetFileName(zoomLevel, xOut, yOut); |
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312 | Bitmap output = GetOutputTileImage(outputFile); |
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313 | if (output == null) |
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314 | return false; |
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315 | FillImage(output, m_Watercolor); |
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316 | |||
317 | if (inputBL != null) |
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318 | { |
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319 | ImageCopyResampled(output, inputBL, 0, HALF_WIDTH, 0, 0); |
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320 | inputBL.Dispose(); |
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321 | } |
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322 | if (inputBR != null) |
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323 | { |
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324 | ImageCopyResampled(output, inputBR, HALF_WIDTH, HALF_WIDTH, 0, 0); |
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325 | inputBR.Dispose(); |
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326 | } |
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327 | if (inputTL != null) |
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328 | { |
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329 | ImageCopyResampled(output, inputTL, 0, 0, 0, 0); |
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330 | inputTL.Dispose(); |
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331 | } |
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332 | if (inputTR != null) |
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333 | { |
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334 | ImageCopyResampled(output, inputTR, HALF_WIDTH, 0, 0, 0); |
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335 | inputTR.Dispose(); |
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336 | } |
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337 | |||
338 | // Write the modified output |
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339 | try |
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340 | { |
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341 | using (Bitmap final = new Bitmap(output)) |
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342 | { |
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343 | output.Dispose(); |
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344 | final.Save(outputFile, ImageFormat.Jpeg); |
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345 | } |
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346 | } |
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347 | catch (Exception e) |
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348 | { |
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349 | m_log.WarnFormat("[MAP IMAGE SERVICE]: Oops on saving {0} {1}", outputFile, e); |
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350 | } |
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351 | |||
352 | // Save also as png? |
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353 | |||
354 | return true; |
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355 | } |
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356 | |||
357 | #region Image utilities |
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358 | |||
359 | private void FillImage(Bitmap bm, Color c) |
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360 | { |
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361 | for (int x = 0; x < bm.Width; x++) |
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362 | for (int y = 0; y < bm.Height; y++) |
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363 | bm.SetPixel(x, y, c); |
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364 | } |
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365 | |||
366 | private void ImageCopyResampled(Bitmap output, Bitmap input, int destX, int destY, int srcX, int srcY) |
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367 | { |
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368 | int resamplingRateX = 2; // (input.Width - srcX) / (output.Width - destX); |
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369 | int resamplingRateY = 2; // (input.Height - srcY) / (output.Height - destY); |
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370 | |||
371 | for (int x = destX; x < destX + HALF_WIDTH; x++) |
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372 | for (int y = destY; y < destY + HALF_WIDTH; y++) |
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373 | { |
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374 | Color p = input.GetPixel(srcX + (x - destX) * resamplingRateX, srcY + (y - destY) * resamplingRateY); |
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375 | output.SetPixel(x, y, p); |
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376 | } |
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377 | } |
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378 | |||
379 | #endregion |
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380 | } |
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381 | } |