diff options
Diffstat (limited to 'OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs')
-rw-r--r-- | OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs | 629 |
1 files changed, 629 insertions, 0 deletions
diff --git a/OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs b/OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs new file mode 100644 index 0000000..4ad1f83 --- /dev/null +++ b/OpenSim/Region/Environment/Scenes/Scripting/Engines/LSLEngine/LSLHandler/LSO_Parser.cs | |||
@@ -0,0 +1,629 @@ | |||
1 | /* | ||
2 | * Copyright (c) Contributors, http://www.openmetaverse.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 | */ | ||
28 | /* Original code: Tedd Hansen */ | ||
29 | using System; | ||
30 | using System.Collections.Generic; | ||
31 | using System.Text; | ||
32 | using System.IO; | ||
33 | using System.Reflection; | ||
34 | using System.Reflection.Emit; | ||
35 | |||
36 | namespace OpenSim.Region.Scripting.LSL | ||
37 | { | ||
38 | partial class LSO_Parser | ||
39 | { | ||
40 | private FileStream fs; | ||
41 | private BinaryReader br; | ||
42 | private LSO_Struct.Header myHeader; | ||
43 | |||
44 | private TypeBuilder typeBuilder; | ||
45 | private System.Collections.Generic.List<string> EventList = new System.Collections.Generic.List<string>(); | ||
46 | |||
47 | /// <summary> | ||
48 | /// Parse LSO file. | ||
49 | /// Reads LSO ByteCode into memory structures. | ||
50 | /// TODO: What else does it do? | ||
51 | /// </summary> | ||
52 | /// <param name="FileName">FileName of LSO ByteCode file</param> | ||
53 | public void ParseFile(string FileName, TypeBuilder _typeBuilder) | ||
54 | { | ||
55 | typeBuilder = _typeBuilder; | ||
56 | //WorldAPI = _WorldAPI; | ||
57 | // Open | ||
58 | Common.SendToDebug("Opening filename: " + FileName); | ||
59 | fs = File.Open(FileName, FileMode.Open, FileAccess.Read, FileShare.Read); | ||
60 | br = new BinaryReader(fs, Encoding.BigEndianUnicode); | ||
61 | |||
62 | |||
63 | // The LSO Format consist of 6 major blocks: header, statics, functions, states, heap, and stack. | ||
64 | |||
65 | |||
66 | // HEADER BLOCK | ||
67 | Common.SendToDebug("Reading HEADER BLOCK at: 0"); | ||
68 | fs.Seek(0, SeekOrigin.Begin); | ||
69 | myHeader = new LSO_Struct.Header(); | ||
70 | myHeader.TM = BitConverter.ToUInt32(br_read(4), 0); | ||
71 | myHeader.IP = BitConverter.ToUInt32(br_read(4), 0); | ||
72 | myHeader.VN = BitConverter.ToUInt32(br_read(4), 0); | ||
73 | myHeader.BP = BitConverter.ToUInt32(br_read(4), 0); | ||
74 | myHeader.SP = BitConverter.ToUInt32(br_read(4), 0); | ||
75 | myHeader.HR = BitConverter.ToUInt32(br_read(4), 0); | ||
76 | myHeader.HP = BitConverter.ToUInt32(br_read(4), 0); | ||
77 | myHeader.CS = BitConverter.ToUInt32(br_read(4), 0); | ||
78 | myHeader.NS = BitConverter.ToUInt32(br_read(4), 0); | ||
79 | myHeader.CE = BitConverter.ToUInt32(br_read(4), 0); | ||
80 | myHeader.IE = BitConverter.ToUInt32(br_read(4), 0); | ||
81 | myHeader.ER = BitConverter.ToUInt32(br_read(4), 0); | ||
82 | myHeader.FR = BitConverter.ToUInt32(br_read(4), 0); | ||
83 | myHeader.SLR = BitConverter.ToUInt32(br_read(4), 0); | ||
84 | myHeader.GVR = BitConverter.ToUInt32(br_read(4), 0); | ||
85 | myHeader.GFR = BitConverter.ToUInt32(br_read(4), 0); | ||
86 | myHeader.PR = BitConverter.ToUInt32(br_read(4), 0); | ||
87 | myHeader.ESR = BitConverter.ToUInt32(br_read(4), 0); | ||
88 | myHeader.SR = BitConverter.ToUInt32(br_read(4), 0); | ||
89 | myHeader.NCE = BitConverter.ToUInt64(br_read(8), 0); | ||
90 | myHeader.NIE = BitConverter.ToUInt64(br_read(8), 0); | ||
91 | myHeader.NER = BitConverter.ToUInt64(br_read(8), 0); | ||
92 | |||
93 | // Print Header Block to debug | ||
94 | Common.SendToDebug("TM - Top of memory (size): " + myHeader.TM); | ||
95 | Common.SendToDebug("IP - Instruction Pointer (0=not running): " + myHeader.IP); | ||
96 | Common.SendToDebug("VN - Version number: " + myHeader.VN); | ||
97 | Common.SendToDebug("BP - Local Frame Pointer: " + myHeader.BP); | ||
98 | Common.SendToDebug("SP - Stack Pointer: " + myHeader.SP); | ||
99 | Common.SendToDebug("HR - Heap Register: " + myHeader.HR); | ||
100 | Common.SendToDebug("HP - Heap Pointer: " + myHeader.HP); | ||
101 | Common.SendToDebug("CS - Current State: " + myHeader.CS); | ||
102 | Common.SendToDebug("NS - Next State: " + myHeader.NS); | ||
103 | Common.SendToDebug("CE - Current Events: " + myHeader.CE); | ||
104 | Common.SendToDebug("IE - In Event: " + myHeader.IE); | ||
105 | Common.SendToDebug("ER - Event Register: " + myHeader.ER); | ||
106 | Common.SendToDebug("FR - Fault Register: " + myHeader.FR); | ||
107 | Common.SendToDebug("SLR - Sleep Register: " + myHeader.SLR); | ||
108 | Common.SendToDebug("GVR - Global Variable Register: " + myHeader.GVR); | ||
109 | Common.SendToDebug("GFR - Global Function Register: " + myHeader.GFR); | ||
110 | Common.SendToDebug("PR - Parameter Register: " + myHeader.PR); | ||
111 | Common.SendToDebug("ESR - Energy Supply Register: " + myHeader.ESR); | ||
112 | Common.SendToDebug("SR - State Register: " + myHeader.SR); | ||
113 | Common.SendToDebug("NCE - 64-bit Current Events: " + myHeader.NCE); | ||
114 | Common.SendToDebug("NIE - 64-bit In Events: " + myHeader.NIE); | ||
115 | Common.SendToDebug("NER - 64-bit Event Register: " + myHeader.NER); | ||
116 | Common.SendToDebug("Read position when exiting HEADER BLOCK: " + fs.Position); | ||
117 | |||
118 | // STATIC BLOCK | ||
119 | Common.SendToDebug("Reading STATIC BLOCK at: " + myHeader.GVR); | ||
120 | fs.Seek(myHeader.GVR, SeekOrigin.Begin); | ||
121 | int StaticBlockCount = 0; | ||
122 | // Read function blocks until we hit GFR | ||
123 | while (fs.Position < myHeader.GFR) | ||
124 | { | ||
125 | StaticBlockCount++; | ||
126 | Common.SendToDebug("Reading Static Block " + StaticBlockCount + " at: " + fs.Position); | ||
127 | //fs.Seek(myHeader.GVR, SeekOrigin.Begin); | ||
128 | LSO_Struct.StaticBlock myStaticBlock = new LSO_Struct.StaticBlock(); | ||
129 | myStaticBlock.Static_Chunk_Header_Size = BitConverter.ToUInt32(br_read(4), 0); | ||
130 | myStaticBlock.ObjectType = br_read(1)[0]; | ||
131 | Common.SendToDebug("Static Block ObjectType: " + ((LSO_Enums.Variable_Type_Codes)myStaticBlock.ObjectType).ToString()); | ||
132 | myStaticBlock.Unknown = br_read(1)[0]; | ||
133 | // Size of datatype varies | ||
134 | if (myStaticBlock.ObjectType != 0) | ||
135 | myStaticBlock.BlockVariable = br_read(getObjectSize(myStaticBlock.ObjectType)); | ||
136 | } | ||
137 | Common.SendToDebug("Number of Static Blocks read: " + StaticBlockCount); | ||
138 | |||
139 | |||
140 | // FUNCTION BLOCK | ||
141 | // Always right after STATIC BLOCK | ||
142 | LSO_Struct.FunctionBlock myFunctionBlock = new LSO_Struct.FunctionBlock(); | ||
143 | if (myHeader.GFR == myHeader.SR) | ||
144 | { | ||
145 | // If GFR and SR are at same position then there is no fuction block | ||
146 | Common.SendToDebug("No FUNCTION BLOCK found"); | ||
147 | } | ||
148 | else | ||
149 | { | ||
150 | Common.SendToDebug("Reading FUNCTION BLOCK at: " + myHeader.GFR); | ||
151 | fs.Seek(myHeader.GFR, SeekOrigin.Begin); | ||
152 | myFunctionBlock.FunctionCount = BitConverter.ToUInt32(br_read(4), 0); | ||
153 | Common.SendToDebug("Number of functions in Fuction Block: " + myFunctionBlock.FunctionCount); | ||
154 | if (myFunctionBlock.FunctionCount > 0) | ||
155 | { | ||
156 | myFunctionBlock.CodeChunkPointer = new UInt32[myFunctionBlock.FunctionCount]; | ||
157 | for (int i = 0; i < myFunctionBlock.FunctionCount; i++) | ||
158 | { | ||
159 | Common.SendToDebug("Reading function " + i + " at: " + fs.Position); | ||
160 | // TODO: ADD TO FUNCTION LIST (How do we identify it later?) | ||
161 | // Note! Absolute position | ||
162 | myFunctionBlock.CodeChunkPointer[i] = BitConverter.ToUInt32(br_read(4), 0) + myHeader.GFR; | ||
163 | Common.SendToDebug("Fuction " + i + " code chunk position: " + myFunctionBlock.CodeChunkPointer[i]); | ||
164 | } | ||
165 | } | ||
166 | } | ||
167 | |||
168 | |||
169 | // STATE FRAME BLOCK | ||
170 | // Always right after FUNCTION BLOCK | ||
171 | Common.SendToDebug("Reading STATE BLOCK at: " + myHeader.SR); | ||
172 | fs.Seek(myHeader.SR, SeekOrigin.Begin); | ||
173 | LSO_Struct.StateFrameBlock myStateFrameBlock = new LSO_Struct.StateFrameBlock(); | ||
174 | myStateFrameBlock.StateCount = BitConverter.ToUInt32(br_read(4), 0); | ||
175 | if (myStateFrameBlock.StateCount > 0) | ||
176 | { | ||
177 | // Initialize array | ||
178 | myStateFrameBlock.StatePointer = new LSO_Struct.StatePointerBlock[myStateFrameBlock.StateCount]; | ||
179 | for (int i = 0; i < myStateFrameBlock.StateCount; i++) | ||
180 | { | ||
181 | Common.SendToDebug("Reading STATE POINTER BLOCK " + (i + 1) + " at: " + fs.Position); | ||
182 | // Position is relative to state frame | ||
183 | myStateFrameBlock.StatePointer[i].Location = myHeader.SR + BitConverter.ToUInt32(br_read(4), 0); | ||
184 | myStateFrameBlock.StatePointer[i].EventMask = new System.Collections.BitArray(br_read(8)); | ||
185 | Common.SendToDebug("Pointer: " + myStateFrameBlock.StatePointer[i].Location); | ||
186 | Common.SendToDebug("Total potential EventMask bits: " + myStateFrameBlock.StatePointer[i].EventMask.Count); | ||
187 | |||
188 | //// Read STATE BLOCK | ||
189 | //long CurPos = fs.Position; | ||
190 | //fs.Seek(CurPos, SeekOrigin.Begin); | ||
191 | |||
192 | } | ||
193 | } | ||
194 | |||
195 | |||
196 | // STATE BLOCK | ||
197 | // For each StateFrameBlock there is one StateBlock with multiple event handlers | ||
198 | |||
199 | if (myStateFrameBlock.StateCount > 0) | ||
200 | { | ||
201 | // Go through all State Frame Pointers found | ||
202 | for (int i = 0; i < myStateFrameBlock.StateCount; i++) | ||
203 | { | ||
204 | |||
205 | fs.Seek(myStateFrameBlock.StatePointer[i].Location, SeekOrigin.Begin); | ||
206 | Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " at: " + fs.Position); | ||
207 | |||
208 | // READ: STATE BLOCK HEADER | ||
209 | myStateFrameBlock.StatePointer[i].StateBlock = new LSO_Struct.StateBlock(); | ||
210 | myStateFrameBlock.StatePointer[i].StateBlock.StartPos = (UInt32)fs.Position; // Note | ||
211 | myStateFrameBlock.StatePointer[i].StateBlock.HeaderSize = BitConverter.ToUInt32(br_read(4), 0); | ||
212 | myStateFrameBlock.StatePointer[i].StateBlock.Unknown = br_read(1)[0]; | ||
213 | myStateFrameBlock.StatePointer[i].StateBlock.EndPos = (UInt32)fs.Position; // Note | ||
214 | Common.SendToDebug("State block Start Pos: " + myStateFrameBlock.StatePointer[i].StateBlock.StartPos); | ||
215 | Common.SendToDebug("State block Header Size: " + myStateFrameBlock.StatePointer[i].StateBlock.HeaderSize); | ||
216 | Common.SendToDebug("State block Header End Pos: " + myStateFrameBlock.StatePointer[i].StateBlock.EndPos); | ||
217 | |||
218 | // We need to count number of bits flagged in EventMask? | ||
219 | |||
220 | |||
221 | // for each bit in myStateFrameBlock.StatePointer[i].EventMask | ||
222 | |||
223 | // ADDING TO ALL RIGHT NOW, SHOULD LIMIT TO ONLY THE ONES IN USE | ||
224 | //TODO: Create event hooks | ||
225 | myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers = new LSO_Struct.StateBlockHandler[myStateFrameBlock.StatePointer[i].EventMask.Count - 1]; | ||
226 | for (int ii = 0; ii < myStateFrameBlock.StatePointer[i].EventMask.Count - 1; ii++) | ||
227 | { | ||
228 | |||
229 | if (myStateFrameBlock.StatePointer[i].EventMask.Get(ii) == true) | ||
230 | { | ||
231 | // We got an event | ||
232 | // READ: STATE BLOCK HANDLER | ||
233 | Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " HANDLER matching EVENT MASK " + ii + " (" + ((LSO_Enums.Event_Mask_Values)ii).ToString() + ") at: " + fs.Position); | ||
234 | myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer = myStateFrameBlock.StatePointer[i].StateBlock.EndPos + BitConverter.ToUInt32(br_read(4), 0); | ||
235 | myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CallFrameSize = BitConverter.ToUInt32(br_read(4), 0); | ||
236 | Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " HANDLER EVENT MASK " + ii + " (" + ((LSO_Enums.Event_Mask_Values)ii).ToString() + ") Code Chunk Pointer: " + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer); | ||
237 | Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " HANDLER EVENT MASK " + ii + " (" + ((LSO_Enums.Event_Mask_Values)ii).ToString() + ") Call Frame Size: " + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CallFrameSize); | ||
238 | } | ||
239 | } | ||
240 | } | ||
241 | } | ||
242 | |||
243 | |||
244 | |||
245 | |||
246 | //// READ FUNCTION CODE CHUNKS | ||
247 | //// Functions + Function start pos (GFR) | ||
248 | //// TODO: Somehow be able to identify and reference this | ||
249 | //LSO_Struct.CodeChunk[] myFunctionCodeChunk; | ||
250 | //if (myFunctionBlock.FunctionCount > 0) | ||
251 | //{ | ||
252 | // myFunctionCodeChunk = new LSO_Struct.CodeChunk[myFunctionBlock.FunctionCount]; | ||
253 | // for (int i = 0; i < myFunctionBlock.FunctionCount; i++) | ||
254 | // { | ||
255 | // Common.SendToDebug("Reading Function Code Chunk " + i); | ||
256 | // myFunctionCodeChunk[i] = GetCodeChunk((UInt32)myFunctionBlock.CodeChunkPointer[i]); | ||
257 | // } | ||
258 | |||
259 | //} | ||
260 | // READ EVENT CODE CHUNKS | ||
261 | LSO_Struct.CodeChunk[] myEventCodeChunk; | ||
262 | if (myStateFrameBlock.StateCount > 0) | ||
263 | { | ||
264 | myEventCodeChunk = new LSO_Struct.CodeChunk[myStateFrameBlock.StateCount]; | ||
265 | for (int i = 0; i < myStateFrameBlock.StateCount; i++) | ||
266 | { | ||
267 | // TODO: Somehow organize events and functions so they can be found again, | ||
268 | // two level search ain't no good | ||
269 | for (int ii = 0; ii < myStateFrameBlock.StatePointer[i].EventMask.Count - 1; ii++) | ||
270 | { | ||
271 | |||
272 | |||
273 | if (myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer > 0) | ||
274 | { | ||
275 | Common.SendToDebug("Reading Event Code Chunk state " + i + ", event " + (LSO_Enums.Event_Mask_Values)ii); | ||
276 | |||
277 | |||
278 | // Override a Method / Function | ||
279 | string eventname = i + "_event_" + (LSO_Enums.Event_Mask_Values)ii; | ||
280 | Common.SendToDebug("Event Name: " + eventname); | ||
281 | if (Common.IL_ProcessCodeChunks) | ||
282 | { | ||
283 | EventList.Add(eventname); | ||
284 | |||
285 | // JUMP TO CODE PROCESSOR | ||
286 | ProcessCodeChunk(myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer, typeBuilder, eventname); | ||
287 | } | ||
288 | } | ||
289 | |||
290 | } | ||
291 | |||
292 | } | ||
293 | |||
294 | } | ||
295 | |||
296 | |||
297 | // Close | ||
298 | br.Close(); | ||
299 | fs.Close(); | ||
300 | |||
301 | if (Common.IL_CreateFunctionList) | ||
302 | IL_INSERT_FUNCTIONLIST(); | ||
303 | |||
304 | } | ||
305 | |||
306 | private LSO_Struct.HeapBlock GetHeap(UInt32 pos) | ||
307 | { | ||
308 | // HEAP BLOCK | ||
309 | // TODO:? Special read for strings/keys (null terminated) and lists (pointers to other HEAP entries) | ||
310 | Common.SendToDebug("Reading HEAP BLOCK at: " + pos); | ||
311 | fs.Seek(pos, SeekOrigin.Begin); | ||
312 | |||
313 | LSO_Struct.HeapBlock myHeapBlock = new LSO_Struct.HeapBlock(); | ||
314 | myHeapBlock.DataBlockSize = BitConverter.ToUInt32(br_read(4), 0); | ||
315 | myHeapBlock.ObjectType = br_read(1)[0]; | ||
316 | myHeapBlock.ReferenceCount = BitConverter.ToUInt16(br_read(2), 0); | ||
317 | myHeapBlock.Data = br_read(getObjectSize(myHeapBlock.ObjectType)); | ||
318 | |||
319 | Common.SendToDebug("Heap Block Data Block Size: " + myHeapBlock.DataBlockSize); | ||
320 | Common.SendToDebug("Heap Block ObjectType: " + ((LSO_Enums.Variable_Type_Codes)myHeapBlock.ObjectType).ToString()); | ||
321 | Common.SendToDebug("Heap Block Reference Count: " + myHeapBlock.ReferenceCount); | ||
322 | |||
323 | return myHeapBlock; | ||
324 | } | ||
325 | private byte[] br_read(int len) | ||
326 | { | ||
327 | if (len <= 0) | ||
328 | return null; | ||
329 | |||
330 | try | ||
331 | { | ||
332 | byte[] bytes = new byte[len]; | ||
333 | for (int i = len - 1; i > -1; i--) | ||
334 | bytes[i] = br.ReadByte(); | ||
335 | return bytes; | ||
336 | } | ||
337 | catch (Exception e) | ||
338 | { | ||
339 | Common.SendToDebug("Exception: " + e.ToString()); | ||
340 | throw (e); | ||
341 | } | ||
342 | } | ||
343 | //private byte[] br_read_smallendian(int len) | ||
344 | //{ | ||
345 | // byte[] bytes = new byte[len]; | ||
346 | // br.Read(bytes,0, len); | ||
347 | // return bytes; | ||
348 | //} | ||
349 | private Type getLLObjectType(byte objectCode) | ||
350 | { | ||
351 | switch ((LSO_Enums.Variable_Type_Codes)objectCode) | ||
352 | { | ||
353 | case LSO_Enums.Variable_Type_Codes.Void: return typeof(void); | ||
354 | case LSO_Enums.Variable_Type_Codes.Integer: return typeof(UInt32); | ||
355 | case LSO_Enums.Variable_Type_Codes.Float: return typeof(float); | ||
356 | case LSO_Enums.Variable_Type_Codes.String: return typeof(string); | ||
357 | case LSO_Enums.Variable_Type_Codes.Key: return typeof(string); | ||
358 | case LSO_Enums.Variable_Type_Codes.Vector: return typeof(LSO_Enums.Vector); | ||
359 | case LSO_Enums.Variable_Type_Codes.Rotation: return typeof(LSO_Enums.Rotation); | ||
360 | case LSO_Enums.Variable_Type_Codes.List: | ||
361 | Common.SendToDebug("TODO: List datatype not implemented yet!"); | ||
362 | return typeof(System.Collections.ArrayList); | ||
363 | default: | ||
364 | Common.SendToDebug("Lookup of LSL datatype " + objectCode + " to .Net datatype failed: Unknown LSL datatype. Defaulting to object."); | ||
365 | return typeof(object); | ||
366 | } | ||
367 | } | ||
368 | private int getObjectSize(byte ObjectType) | ||
369 | { | ||
370 | switch (ObjectType) | ||
371 | { | ||
372 | case 1: | ||
373 | case 2: | ||
374 | case 3: | ||
375 | case 4: | ||
376 | case 7: | ||
377 | return 4; | ||
378 | case 5: | ||
379 | return 12; | ||
380 | case 6: | ||
381 | return 16; | ||
382 | default: | ||
383 | return 0; | ||
384 | } | ||
385 | } | ||
386 | private string Read_String() | ||
387 | { | ||
388 | string ret = ""; | ||
389 | byte reader = br_read(1)[0]; | ||
390 | while (reader != 0x000) | ||
391 | { | ||
392 | ret += (char)reader; | ||
393 | reader = br_read(1)[0]; | ||
394 | } | ||
395 | return ret; | ||
396 | } | ||
397 | |||
398 | /// <summary> | ||
399 | /// Reads a code chunk and creates IL | ||
400 | /// </summary> | ||
401 | /// <param name="pos">Absolute position in file. REMEMBER TO ADD myHeader.GFR!</param> | ||
402 | /// <param name="typeBuilder">TypeBuilder for assembly</param> | ||
403 | /// <param name="eventname">Name of event (function) to generate</param> | ||
404 | private void ProcessCodeChunk(UInt32 pos, TypeBuilder typeBuilder, string eventname) | ||
405 | { | ||
406 | |||
407 | LSO_Struct.CodeChunk myCodeChunk = new LSO_Struct.CodeChunk(); | ||
408 | |||
409 | Common.SendToDebug("Reading Function Code Chunk at: " + pos); | ||
410 | fs.Seek(pos, SeekOrigin.Begin); | ||
411 | myCodeChunk.CodeChunkHeaderSize = BitConverter.ToUInt32(br_read(4), 0); | ||
412 | Common.SendToDebug("CodeChunk Header Size: " + myCodeChunk.CodeChunkHeaderSize); | ||
413 | // Read until null | ||
414 | myCodeChunk.Comment = Read_String(); | ||
415 | Common.SendToDebug("Function comment: " + myCodeChunk.Comment); | ||
416 | myCodeChunk.ReturnType = br_read(1)[0]; | ||
417 | Common.SendToDebug("Return type #" + myCodeChunk.ReturnType + ": " + (getLLObjectType(myCodeChunk.ReturnType).ToString())); | ||
418 | |||
419 | // TODO: How to determine number of codechunks -- does this method work? | ||
420 | myCodeChunk.CodeChunkArguments = new System.Collections.Generic.List<LSO_Struct.CodeChunkArgument>(); | ||
421 | byte reader = br_read(1)[0]; | ||
422 | reader = br_read(1)[0]; | ||
423 | |||
424 | // NOTE ON CODE CHUNK ARGUMENTS | ||
425 | // This determins type definition | ||
426 | int ccount = 0; | ||
427 | while (reader != 0x000) | ||
428 | { | ||
429 | ccount++; | ||
430 | Common.SendToDebug("Reading Code Chunk Argument " + ccount); | ||
431 | LSO_Struct.CodeChunkArgument CCA = new LSO_Struct.CodeChunkArgument(); | ||
432 | CCA.FunctionReturnType = reader; | ||
433 | reader = br_read(1)[0]; | ||
434 | CCA.NullString = reader; | ||
435 | myCodeChunk.CodeChunkArguments.Add(CCA); | ||
436 | Common.SendToDebug("Code Chunk Argument " + ccount + " type: " + (LSO_Enums.Variable_Type_Codes)CCA.FunctionReturnType); | ||
437 | } | ||
438 | // Create string array | ||
439 | Type[] MethodArgs = new Type[myCodeChunk.CodeChunkArguments.Count]; | ||
440 | for (int _ic = 0; _ic < myCodeChunk.CodeChunkArguments.Count; _ic++) | ||
441 | { | ||
442 | MethodArgs[_ic] = getLLObjectType(myCodeChunk.CodeChunkArguments[_ic].FunctionReturnType); | ||
443 | Common.SendToDebug("Method argument " + _ic + ": " + getLLObjectType(myCodeChunk.CodeChunkArguments[_ic].FunctionReturnType).ToString()); | ||
444 | } | ||
445 | // End marker is 0x000 | ||
446 | myCodeChunk.EndMarker = reader; | ||
447 | |||
448 | |||
449 | // | ||
450 | // Emit: START OF METHOD (FUNCTION) | ||
451 | // | ||
452 | |||
453 | Common.SendToDebug("CLR:" + eventname + ":MethodBuilder methodBuilder = typeBuilder.DefineMethod..."); | ||
454 | MethodBuilder methodBuilder = typeBuilder.DefineMethod(eventname, | ||
455 | MethodAttributes.Public, | ||
456 | typeof(void), | ||
457 | MethodArgs); | ||
458 | //typeof(void), //getLLObjectType(myCodeChunk.ReturnType), | ||
459 | // new Type[] { typeof(object) }, //); | ||
460 | |||
461 | //Common.SendToDebug("CLR:" + eventname + ":typeBuilder.DefineMethodOverride(methodBuilder..."); | ||
462 | //typeBuilder.DefineMethodOverride(methodBuilder, | ||
463 | // typeof(LSL_CLRInterface.LSLScript).GetMethod(eventname)); | ||
464 | |||
465 | // Create the IL generator | ||
466 | |||
467 | Common.SendToDebug("CLR:" + eventname + ":ILGenerator il = methodBuilder.GetILGenerator();"); | ||
468 | ILGenerator il = methodBuilder.GetILGenerator(); | ||
469 | |||
470 | |||
471 | if (Common.IL_UseTryCatch) | ||
472 | IL_INSERT_TRY(il, eventname); | ||
473 | |||
474 | |||
475 | |||
476 | // Push Console.WriteLine command to stack ... Console.WriteLine("Hello World!"); | ||
477 | //Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); | ||
478 | //il.Emit(OpCodes.Call, typeof(Console).GetMethod | ||
479 | // ("WriteLine", new Type[] { typeof(string) })); | ||
480 | |||
481 | //Common.SendToDebug("STARTUP: il.Emit(OpCodes.Ldc_I4_S, 0);"); | ||
482 | |||
483 | //il.Emit(OpCodes.Ldc_I4_S, 0); | ||
484 | for (int _ic = 0; _ic < myCodeChunk.CodeChunkArguments.Count; _ic++) | ||
485 | { | ||
486 | Common.SendToDebug("PARAMS: il.Emit(OpCodes.Ldarg, " + _ic + ");"); | ||
487 | il.Emit(OpCodes.Ldarg, _ic); | ||
488 | } | ||
489 | |||
490 | |||
491 | |||
492 | // | ||
493 | // CALLING OPCODE PROCESSOR, one command at the time TO GENERATE IL | ||
494 | // | ||
495 | bool FoundRet = false; | ||
496 | while (FoundRet == false) | ||
497 | { | ||
498 | FoundRet = LSL_PROCESS_OPCODE(il); | ||
499 | } | ||
500 | |||
501 | |||
502 | if (Common.IL_UseTryCatch) | ||
503 | IL_INSERT_END_TRY(il, eventname); | ||
504 | |||
505 | // Emit: RETURN FROM METHOD | ||
506 | il.Emit(OpCodes.Ret); | ||
507 | |||
508 | return; | ||
509 | |||
510 | } | ||
511 | |||
512 | private void IL_INSERT_FUNCTIONLIST() | ||
513 | { | ||
514 | |||
515 | Common.SendToDebug("Creating function list"); | ||
516 | |||
517 | |||
518 | string eventname = "GetFunctions"; | ||
519 | |||
520 | Common.SendToDebug("Creating IL " + eventname); | ||
521 | // Define a private String field. | ||
522 | //FieldBuilder myField = myTypeBuilder.DefineField("EventList", typeof(String[]), FieldAttributes.Public); | ||
523 | |||
524 | |||
525 | //FieldBuilder mem = typeBuilder.DefineField("mem", typeof(Array), FieldAttributes.Private); | ||
526 | |||
527 | |||
528 | |||
529 | MethodBuilder methodBuilder = typeBuilder.DefineMethod(eventname, | ||
530 | MethodAttributes.Public, | ||
531 | typeof(string[]), | ||
532 | null); | ||
533 | |||
534 | //typeBuilder.DefineMethodOverride(methodBuilder, | ||
535 | // typeof(LSL_CLRInterface.LSLScript).GetMethod(eventname)); | ||
536 | |||
537 | ILGenerator il = methodBuilder.GetILGenerator(); | ||
538 | |||
539 | |||
540 | |||
541 | |||
542 | // IL_INSERT_TRY(il, eventname); | ||
543 | |||
544 | // // Push string to stack | ||
545 | // il.Emit(OpCodes.Ldstr, "Inside " + eventname); | ||
546 | |||
547 | //// Push Console.WriteLine command to stack ... Console.WriteLine("Hello World!"); | ||
548 | //il.Emit(OpCodes.Call, typeof(Console).GetMethod | ||
549 | // ("WriteLine", new Type[] { typeof(string) })); | ||
550 | |||
551 | //initIL.Emit(OpCodes.Newobj, typeof(string[])); | ||
552 | |||
553 | //string[] MyArray = new string[2] { "TestItem1" , "TestItem2" }; | ||
554 | |||
555 | il.DeclareLocal(typeof(string[])); | ||
556 | |||
557 | //il.Emit(OpCodes.Ldarg_0); | ||
558 | il.Emit(OpCodes.Ldc_I4, EventList.Count); // Specify array length | ||
559 | il.Emit(OpCodes.Newarr, typeof(String)); // create new string array | ||
560 | il.Emit(OpCodes.Stloc_0); // Store array as local variable 0 in stack | ||
561 | |||
562 | for (int lv = 0; lv < EventList.Count; lv++) | ||
563 | { | ||
564 | il.Emit(OpCodes.Ldloc_0); // Load local variable 0 onto stack | ||
565 | il.Emit(OpCodes.Ldc_I4, lv); // Push index position | ||
566 | il.Emit(OpCodes.Ldstr, EventList[lv]); // Push value | ||
567 | il.Emit(OpCodes.Stelem_Ref); // Perform array[index] = value | ||
568 | } | ||
569 | |||
570 | |||
571 | |||
572 | // IL_INSERT_END_TRY(il, eventname); | ||
573 | |||
574 | il.Emit(OpCodes.Ldloc_0); // Load local variable 0 onto stack | ||
575 | il.Emit(OpCodes.Ret); // Return | ||
576 | |||
577 | } | ||
578 | |||
579 | |||
580 | private void IL_INSERT_TRY(ILGenerator il, string eventname) | ||
581 | { | ||
582 | /* | ||
583 | * CLR TRY | ||
584 | */ | ||
585 | //Common.SendToDebug("CLR:" + eventname + ":il.BeginExceptionBlock()"); | ||
586 | il.BeginExceptionBlock(); | ||
587 | |||
588 | // Push "Hello World!" string to stack | ||
589 | //Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Ldstr..."); | ||
590 | il.Emit(OpCodes.Ldstr, "Starting CLR dynamic execution of: " + eventname); | ||
591 | |||
592 | } | ||
593 | |||
594 | private void IL_INSERT_END_TRY(ILGenerator il, string eventname) | ||
595 | { | ||
596 | /* | ||
597 | * CATCH | ||
598 | */ | ||
599 | Common.SendToDebug("CLR:" + eventname + ":il.BeginCatchBlock(typeof(Exception));"); | ||
600 | il.BeginCatchBlock(typeof(Exception)); | ||
601 | |||
602 | // Push "Hello World!" string to stack | ||
603 | Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Ldstr..."); | ||
604 | il.Emit(OpCodes.Ldstr, "Execption executing dynamic CLR function " + eventname + ": "); | ||
605 | |||
606 | //call void [mscorlib]System.Console::WriteLine(string) | ||
607 | Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); | ||
608 | il.Emit(OpCodes.Call, typeof(Console).GetMethod | ||
609 | ("Write", new Type[] { typeof(string) })); | ||
610 | |||
611 | //callvirt instance string [mscorlib]System.Exception::get_Message() | ||
612 | Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Callvirt..."); | ||
613 | il.Emit(OpCodes.Callvirt, typeof(Exception).GetMethod | ||
614 | ("get_Message")); | ||
615 | |||
616 | //call void [mscorlib]System.Console::WriteLine(string) | ||
617 | Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); | ||
618 | il.Emit(OpCodes.Call, typeof(Console).GetMethod | ||
619 | ("WriteLine", new Type[] { typeof(string) })); | ||
620 | |||
621 | /* | ||
622 | * CLR END TRY | ||
623 | */ | ||
624 | //Common.SendToDebug("CLR:" + eventname + ":il.EndExceptionBlock();"); | ||
625 | il.EndExceptionBlock(); | ||
626 | } | ||
627 | |||
628 | } | ||
629 | } | ||