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authorTeravus Ovares2009-01-19 17:11:57 +0000
committerTeravus Ovares2009-01-19 17:11:57 +0000
commit8e01f75784bd7b719a6957de40daf949eb01fcdf (patch)
tree4d1a703e7417093f7d75fc0f6f588e01b295ca9c /OpenSim/Region/Environment/Modules/Agent/TextureSender/J2KDecoderModule.cs
parent* Remove unused prims.ParentID field from SQLite and MySQL (diff)
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* Progressive texture patch + PriorityQueue put into the LLClient namespace.
* Updates LibOMV to r2362
Diffstat (limited to 'OpenSim/Region/Environment/Modules/Agent/TextureSender/J2KDecoderModule.cs')
-rw-r--r--OpenSim/Region/Environment/Modules/Agent/TextureSender/J2KDecoderModule.cs215
1 files changed, 215 insertions, 0 deletions
diff --git a/OpenSim/Region/Environment/Modules/Agent/TextureSender/J2KDecoderModule.cs b/OpenSim/Region/Environment/Modules/Agent/TextureSender/J2KDecoderModule.cs
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@@ -0,0 +1,215 @@
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 OpenSim 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
28using System;
29using System.Reflection;
30using System.Threading;
31using System.Collections.Generic;
32using log4net;
33using Nini.Config;
34using OpenMetaverse;
35using OpenMetaverse.Imaging;
36using OpenSim.Region.Environment.Interfaces;
37using OpenSim.Region.Environment.Scenes;
38
39namespace OpenSim.Region.Environment.Modules.Agent.TextureSender
40{
41 public class J2KDecoderModule : IRegionModule, IJ2KDecoder
42 {
43 #region IRegionModule Members
44
45 private static readonly ILog m_log
46 = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
47
48 /// <summary>
49 /// Cached Decoded Layers
50 /// </summary>
51 private readonly Dictionary<UUID, OpenJPEG.J2KLayerInfo[]> m_cacheddecode = new Dictionary<UUID, OpenJPEG.J2KLayerInfo[]>();
52
53 /// <summary>
54 /// List of client methods to notify of results of decode
55 /// </summary>
56 private readonly Dictionary<UUID, List<DecodedCallback>> m_notifyList = new Dictionary<UUID, List<DecodedCallback>>();
57
58 public void Initialise(Scene scene, IConfigSource source)
59 {
60 scene.RegisterModuleInterface<IJ2KDecoder>(this);
61 }
62
63 public void PostInitialise()
64 {
65
66 }
67
68 public void Close()
69 {
70
71 }
72
73 public string Name
74 {
75 get { return "J2KDecoderModule"; }
76 }
77
78 public bool IsSharedModule
79 {
80 get { return true; }
81 }
82
83 #endregion
84
85 #region IJ2KDecoder Members
86
87
88 public void decode(UUID AssetId, byte[] assetData, DecodedCallback decodedReturn)
89 {
90 // Dummy for if decoding fails.
91 OpenJPEG.J2KLayerInfo[] result = new OpenJPEG.J2KLayerInfo[0];
92
93 // Check if it's cached
94 bool cached = false;
95 lock (m_cacheddecode)
96 {
97 if (m_cacheddecode.ContainsKey(AssetId))
98 {
99 cached = true;
100 result = m_cacheddecode[AssetId];
101 }
102 }
103
104 // If it's cached, return the cached results
105 if (cached)
106 {
107 decodedReturn(AssetId, result);
108 }
109 else
110 {
111 // not cached, so we need to decode it
112 // Add to notify list and start decoding.
113 // Next request for this asset while it's decoding will only be added to the notify list
114 // once this is decoded, requests will be served from the cache and all clients in the notifylist will be updated
115 bool decode = false;
116 lock (m_notifyList)
117 {
118 if (m_notifyList.ContainsKey(AssetId))
119 {
120 m_notifyList[AssetId].Add(decodedReturn);
121 }
122 else
123 {
124 List<DecodedCallback> notifylist = new List<DecodedCallback>();
125 notifylist.Add(decodedReturn);
126 m_notifyList.Add(AssetId, notifylist);
127 decode = true;
128 }
129 }
130 // Do Decode!
131 if (decode)
132 {
133 doJ2kDecode(AssetId, assetData);
134 }
135 }
136 }
137
138 #endregion
139
140 /// <summary>
141 /// Decode Jpeg2000 Asset Data
142 /// </summary>
143 /// <param name="AssetId">UUID of Asset</param>
144 /// <param name="j2kdata">Byte Array Asset Data </param>
145 private void doJ2kDecode(UUID AssetId, byte[] j2kdata)
146 {
147 int DecodeTime = 0;
148 DecodeTime = System.Environment.TickCount;
149 OpenJPEG.J2KLayerInfo[] layers = new OpenJPEG.J2KLayerInfo[0]; // Dummy result for if it fails. Informs that there's only full quality
150 try
151 {
152
153 AssetTexture texture = new AssetTexture(AssetId, j2kdata);
154 if (texture.DecodeLayerBoundaries())
155 {
156 bool sane = true;
157
158 // Sanity check all of the layers
159 for (int i = 0; i < texture.LayerInfo.Length; i++)
160 {
161 if (texture.LayerInfo[i].End > texture.AssetData.Length)
162 {
163 sane = false;
164 break;
165 }
166 }
167
168 if (sane)
169 {
170 layers = texture.LayerInfo;
171 }
172 else
173 {
174 m_log.WarnFormat("[J2KDecoderModule]: JPEG2000 texture decoding succeeded, but sanity check failed for {0}",
175 AssetId);
176 }
177 }
178
179 else
180 {
181 m_log.WarnFormat("[J2KDecoderModule]: JPEG2000 texture decoding failed for {0}", AssetId);
182 }
183 texture = null; // dereference and dispose of ManagedImage
184 }
185 catch (Exception ex)
186 {
187 m_log.WarnFormat("[J2KDecoderModule]: JPEG2000 texture decoding threw an exception for {0}, {1}", AssetId, ex);
188 }
189
190 // Write out decode time
191 m_log.InfoFormat("[J2KDecoderModule]: {0} Decode Time: {1}", System.Environment.TickCount - DecodeTime, AssetId);
192
193 // Cache Decoded layers
194 lock (m_cacheddecode)
195 {
196 m_cacheddecode.Add(AssetId, layers);
197
198 }
199
200 // Notify Interested Parties
201 lock (m_notifyList)
202 {
203 if (m_notifyList.ContainsKey(AssetId))
204 {
205 foreach (DecodedCallback d in m_notifyList[AssetId])
206 {
207 if (d != null)
208 d.DynamicInvoke(AssetId, layers);
209 }
210 m_notifyList.Remove(AssetId);
211 }
212 }
213 }
214 }
215}
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