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1/*
2Copyright (c) OpenSim project, http://osgrid.org/
3
4* Copyright (c) <year>, <copyright holder>
5* All rights reserved.
6*
7* Redistribution and use in source and binary forms, with or without
8* modification, are permitted provided that the following conditions are met:
9* * Redistributions of source code must retain the above copyright
10* notice, this list of conditions and the following disclaimer.
11* * Redistributions in binary form must reproduce the above copyright
12* notice, this list of conditions and the following disclaimer in the
13* documentation and/or other materials provided with the distribution.
14* * Neither the name of the <organization> nor the
15* names of its contributors may be used to endorse or promote products
16* derived from this software without specific prior written permission.
17*
18* THIS SOFTWARE IS PROVIDED BY <copyright holder> ``AS IS'' AND ANY
19* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21* DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
22* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28*/
29
30using System;
31using System.Collections.Generic;
32using libsecondlife;
33using System.Collections;
34using libsecondlife.Packets;
35using libsecondlife.AssetSystem;
36using System.IO;
37
38
39namespace OpenSim
40{
41 /// <summary>
42 /// Description of Texture_manager.
43 /// </summary>
44 public class TextureManager
45 {
46 public Dictionary<libsecondlife.LLUUID,TextureImage> textures;
47 public ArrayList requests=new ArrayList(); //should change to a generic
48 public ArrayList uploads=new ArrayList();
49 private Server server;
50
51 public TextureManager(Server serve)
52 {
53 server=serve;
54 textures=new Dictionary<libsecondlife.LLUUID,TextureImage> ();
55 this.initialise();
56 }
57
58 public void AddRequest(User_Agent_info user, LLUUID image_id)
59 {
60
61 if(!this.textures.ContainsKey(image_id))
62 {
63 //not found image so send back image not in data base message
64 ImageNotInDatabasePacket im_not=new ImageNotInDatabasePacket();
65 im_not.ImageID.ID=image_id;
66 server.SendPacket(im_not,true,user);
67 return;
68 }
69 TextureImage imag=this.textures[image_id];
70 TextureRequest req=new TextureRequest();
71 req.RequestUser=user;
72 req.RequestImage=image_id;
73 req.image_info=imag;
74
75 if(imag.data.LongLength>1000) //should be bigger or smaller?
76 {
77 //over 1000 bytes so split up file
78 req.num_packets=(int)imag.data.LongLength/1000;
79 req.num_packets++;
80 }
81 else
82 {
83 req.num_packets=1;
84 }
85
86 this.requests.Add(req);
87
88 }
89
90 public void AddTexture(LLUUID image_id, string name, byte[] data)
91 {
92
93 }
94 public void DoWork(ulong time)
95 {
96 if(this.requests.Count==0)
97 {
98 //no requests waiting
99 return;
100 }
101 int num;
102 //should be running in its own thread but for now is called by timer
103 if(this.requests.Count<5)
104 {
105 //lower than 5 so do all of them
106 num=this.requests.Count;
107 }
108 else
109 {
110 num=5;
111 }
112 TextureRequest req;
113 for(int i=0; i<num; i++)
114 {
115 req=(TextureRequest)this.requests[i];
116
117 if(req.packet_counter==0)
118 {
119 //first time for this request so send imagedata packet
120 if(req.num_packets==1)
121 {
122 //only one packet so send whole file
123 ImageDataPacket im=new ImageDataPacket();
124 im.ImageID.Packets=1;
125 im.ImageID.ID=req.image_info.Full_ID;
126 im.ImageID.Size=(uint)req.image_info.data.Length;
127 im.ImageData.Data=req.image_info.data;
128 im.ImageID.Codec=2;
129 server.SendPacket(im,true,req.RequestUser);
130 req.packet_counter++;
131 req.image_info.last_used=time;
132 System.Console.WriteLine("sent texture: "+req.image_info.Full_ID);
133 }
134 else
135 {
136 //more than one packet so split file up
137 }
138 }
139 else
140 {
141 //send imagepacket
142
143 }
144 }
145
146 //remove requests that have been completed
147 for(int i=0; i<num; i++)
148 {
149 req=(TextureRequest)this.requests[i];
150 if(req.packet_counter==req.num_packets)
151 {
152 this.requests.Remove(req);
153 }
154 }
155 }
156
157 public void RecieveTexture(Packet pack)
158 {
159
160 }
161
162 private void initialise()
163 {
164
165 TextureImage im=new TextureImage();
166 im.filename="testpic2.jp2";
167 im.Full_ID=new LLUUID("00000000-0000-0000-5005-000000000005");
168 im.Name="test Texture";
169 this.LoadImage(im);
170 this.textures.Add(im.Full_ID,im);
171
172 //Change these filenames to images you want to use.
173 im=new TextureImage();
174 im.filename="map_base.jp2";
175 im.Full_ID=new LLUUID("00000000-0000-0000-7007-000000000006");
176 this.LoadImage(im);
177 this.textures.Add(im.Full_ID,im);
178
179 im=new TextureImage();
180 im.filename="map1.jp2";
181 im.Full_ID=new LLUUID("00000000-0000-0000-7009-000000000008");
182 this.LoadImage(im);
183 this.textures.Add(im.Full_ID,im);
184
185 }
186 private void LoadImage(TextureImage im)
187 {
188 //should request Image from StorageManager
189 //but for now read from file
190
191 string data_path=System.AppDomain.CurrentDomain.BaseDirectory + @"\textures\";
192 string filename=data_path+@im.filename;
193 FileInfo fInfo = new FileInfo(filename);
194
195 long numBytes = fInfo.Length;
196
197 FileStream fStream = new FileStream(filename, FileMode.Open, FileAccess.Read);
198 byte[] idata=new byte[numBytes];
199 BinaryReader br = new BinaryReader(fStream);
200 idata= br.ReadBytes((int)numBytes);
201 br.Close();
202 fStream.Close();
203 im.data=idata;
204 im.loaded=true;
205 }
206
207 }
208
209 public class TextureRequest
210 {
211 public User_Agent_info RequestUser;
212 public LLUUID RequestImage;
213 public TextureImage image_info;
214 public long data_pointer=0;
215 public int num_packets=0;
216 public int packet_counter=0;
217
218 public TextureRequest()
219 {
220
221 }
222 }
223 public class TextureImage: AssetBase
224 {
225 //public byte[] data;
226 //public LLUUID Full_ID;
227 //public string name;
228 public string filename;
229 public bool loaded;
230 public ulong last_used; //need to add a tick/time counter and keep record
231 // of how often images are requested to unload unused ones.
232
233 public TextureImage()
234 {
235
236 }
237 }
238}
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