From f9c981007db13d86342f5a68168e012b4026c78c Mon Sep 17 00:00:00 2001 From: Tedd Hansen Date: Sat, 12 Jan 2008 15:52:34 +0000 Subject: Set eol --- .../ScriptEngine/LSOEngine/LSO/LSO_Parser.cs | 1456 ++++++++++---------- 1 file changed, 728 insertions(+), 728 deletions(-) (limited to 'OpenSim/Region/ScriptEngine/LSOEngine/LSO/LSO_Parser.cs') diff --git a/OpenSim/Region/ScriptEngine/LSOEngine/LSO/LSO_Parser.cs b/OpenSim/Region/ScriptEngine/LSOEngine/LSO/LSO_Parser.cs index 1d3992f..d0cc0f9 100644 --- a/OpenSim/Region/ScriptEngine/LSOEngine/LSO/LSO_Parser.cs +++ b/OpenSim/Region/ScriptEngine/LSOEngine/LSO/LSO_Parser.cs @@ -1,729 +1,729 @@ -/* -* Copyright (c) Contributors, http://opensimulator.org/ -* See CONTRIBUTORS.TXT for a full list of copyright holders. -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions are met: -* * Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* * Redistributions in binary form must reproduce the above copyright -* notice, this list of conditions and the following disclaimer in the -* documentation and/or other materials provided with the distribution. -* * Neither the name of the OpenSim Project nor the -* names of its contributors may be used to endorse or promote products -* derived from this software without specific prior written permission. -* -* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY -* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY -* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -* -*/ -/* Original code: Tedd Hansen */ -using System; -using System.Collections; -using System.Collections.Generic; -using System.IO; -using System.Reflection; -using System.Reflection.Emit; -using System.Text; -using OpenSim.Region.ScriptEngine.LSOEngine.LSO; - -namespace OpenSim.Region.ScriptEngine.LSOEngine.LSO -{ - internal partial class LSO_Parser - { - private string FileName; - private FileStream fs; - private BinaryReader br; - internal LSO_Struct.Header myHeader; - internal Dictionary StaticBlocks = new Dictionary(); - //private System.Collections.Hashtable StaticBlocks = new System.Collections.Hashtable(); - - private TypeBuilder typeBuilder; - private List EventList = new List(); - - public LSO_Parser(string _FileName, TypeBuilder _typeBuilder) - { - FileName = _FileName; - typeBuilder = _typeBuilder; - } - - internal void OpenFile() - { - // Open - Common.SendToDebug("Opening filename: " + FileName); - fs = File.Open(FileName, FileMode.Open, FileAccess.Read, FileShare.Read); - br = new BinaryReader(fs, Encoding.BigEndianUnicode); - } - - internal void CloseFile() - { - // Close - br.Close(); - fs.Close(); - } - - - /// - /// Parse LSO file. - /// - public void Parse() - { - // The LSO Format consist of 6 major blocks: header, statics, functions, states, heap, and stack. - - - // HEADER BLOCK - Common.SendToDebug("Reading HEADER BLOCK at: 0"); - fs.Seek(0, SeekOrigin.Begin); - myHeader = new LSO_Struct.Header(); - myHeader.TM = BitConverter.ToUInt32(br_read(4), 0); - myHeader.IP = BitConverter.ToUInt32(br_read(4), 0); - myHeader.VN = BitConverter.ToUInt32(br_read(4), 0); - myHeader.BP = BitConverter.ToUInt32(br_read(4), 0); - myHeader.SP = BitConverter.ToUInt32(br_read(4), 0); - myHeader.HR = BitConverter.ToUInt32(br_read(4), 0); - myHeader.HP = BitConverter.ToUInt32(br_read(4), 0); - myHeader.CS = BitConverter.ToUInt32(br_read(4), 0); - myHeader.NS = BitConverter.ToUInt32(br_read(4), 0); - myHeader.CE = BitConverter.ToUInt32(br_read(4), 0); - myHeader.IE = BitConverter.ToUInt32(br_read(4), 0); - myHeader.ER = BitConverter.ToUInt32(br_read(4), 0); - myHeader.FR = BitConverter.ToUInt32(br_read(4), 0); - myHeader.SLR = BitConverter.ToUInt32(br_read(4), 0); - myHeader.GVR = BitConverter.ToUInt32(br_read(4), 0); - myHeader.GFR = BitConverter.ToUInt32(br_read(4), 0); - myHeader.PR = BitConverter.ToUInt32(br_read(4), 0); - myHeader.ESR = BitConverter.ToUInt32(br_read(4), 0); - myHeader.SR = BitConverter.ToUInt32(br_read(4), 0); - myHeader.NCE = BitConverter.ToUInt64(br_read(8), 0); - myHeader.NIE = BitConverter.ToUInt64(br_read(8), 0); - myHeader.NER = BitConverter.ToUInt64(br_read(8), 0); - - // Print Header Block to debug - Common.SendToDebug("TM - Top of memory (size): " + myHeader.TM); - Common.SendToDebug("IP - Instruction Pointer (0=not running): " + myHeader.IP); - Common.SendToDebug("VN - Version number: " + myHeader.VN); - Common.SendToDebug("BP - Local Frame Pointer: " + myHeader.BP); - Common.SendToDebug("SP - Stack Pointer: " + myHeader.SP); - Common.SendToDebug("HR - Heap Register: " + myHeader.HR); - Common.SendToDebug("HP - Heap Pointer: " + myHeader.HP); - Common.SendToDebug("CS - Current State: " + myHeader.CS); - Common.SendToDebug("NS - Next State: " + myHeader.NS); - Common.SendToDebug("CE - Current Events: " + myHeader.CE); - Common.SendToDebug("IE - In Event: " + myHeader.IE); - Common.SendToDebug("ER - Event Register: " + myHeader.ER); - Common.SendToDebug("FR - Fault Register: " + myHeader.FR); - Common.SendToDebug("SLR - Sleep Register: " + myHeader.SLR); - Common.SendToDebug("GVR - Global Variable Register: " + myHeader.GVR); - Common.SendToDebug("GFR - Global Function Register: " + myHeader.GFR); - Common.SendToDebug("PR - Parameter Register: " + myHeader.PR); - Common.SendToDebug("ESR - Energy Supply Register: " + myHeader.ESR); - Common.SendToDebug("SR - State Register: " + myHeader.SR); - Common.SendToDebug("NCE - 64-bit Current Events: " + myHeader.NCE); - Common.SendToDebug("NIE - 64-bit In Events: " + myHeader.NIE); - Common.SendToDebug("NER - 64-bit Event Register: " + myHeader.NER); - Common.SendToDebug("Read position when exiting HEADER BLOCK: " + fs.Position); - - // STATIC BLOCK - Common.SendToDebug("Reading STATIC BLOCK at: " + myHeader.GVR); - fs.Seek(myHeader.GVR, SeekOrigin.Begin); - int StaticBlockCount = 0; - // Read function blocks until we hit GFR - while (fs.Position < myHeader.GFR) - { - StaticBlockCount++; - long startReadPos = fs.Position; - Common.SendToDebug("Reading Static Block " + StaticBlockCount + " at: " + startReadPos); - - //fs.Seek(myHeader.GVR, SeekOrigin.Begin); - LSO_Struct.StaticBlock myStaticBlock = new LSO_Struct.StaticBlock(); - myStaticBlock.Static_Chunk_Header_Size = BitConverter.ToUInt32(br_read(4), 0); - myStaticBlock.ObjectType = br_read(1)[0]; - Common.SendToDebug("Static Block ObjectType: " + - ((LSO_Enums.Variable_Type_Codes) myStaticBlock.ObjectType).ToString()); - myStaticBlock.Unknown = br_read(1)[0]; - // Size of datatype varies -- what about strings? - if (myStaticBlock.ObjectType != 0) - myStaticBlock.BlockVariable = br_read(getObjectSize(myStaticBlock.ObjectType)); - - StaticBlocks.Add((UInt32) startReadPos, myStaticBlock); - } - Common.SendToDebug("Number of Static Blocks read: " + StaticBlockCount); - - - // FUNCTION BLOCK - // Always right after STATIC BLOCK - LSO_Struct.FunctionBlock myFunctionBlock = new LSO_Struct.FunctionBlock(); - if (myHeader.GFR == myHeader.SR) - { - // If GFR and SR are at same position then there is no fuction block - Common.SendToDebug("No FUNCTION BLOCK found"); - } - else - { - Common.SendToDebug("Reading FUNCTION BLOCK at: " + myHeader.GFR); - fs.Seek(myHeader.GFR, SeekOrigin.Begin); - myFunctionBlock.FunctionCount = BitConverter.ToUInt32(br_read(4), 0); - Common.SendToDebug("Number of functions in Fuction Block: " + myFunctionBlock.FunctionCount); - if (myFunctionBlock.FunctionCount > 0) - { - myFunctionBlock.CodeChunkPointer = new UInt32[myFunctionBlock.FunctionCount]; - for (int i = 0; i < myFunctionBlock.FunctionCount; i++) - { - Common.SendToDebug("Reading function " + i + " at: " + fs.Position); - // TODO: ADD TO FUNCTION LIST (How do we identify it later?) - // Note! Absolute position - myFunctionBlock.CodeChunkPointer[i] = BitConverter.ToUInt32(br_read(4), 0) + myHeader.GFR; - Common.SendToDebug("Fuction " + i + " code chunk position: " + - myFunctionBlock.CodeChunkPointer[i]); - } - } - } - - - // STATE FRAME BLOCK - // Always right after FUNCTION BLOCK - Common.SendToDebug("Reading STATE BLOCK at: " + myHeader.SR); - fs.Seek(myHeader.SR, SeekOrigin.Begin); - LSO_Struct.StateFrameBlock myStateFrameBlock = new LSO_Struct.StateFrameBlock(); - myStateFrameBlock.StateCount = BitConverter.ToUInt32(br_read(4), 0); - if (myStateFrameBlock.StateCount > 0) - { - // Initialize array - myStateFrameBlock.StatePointer = new LSO_Struct.StatePointerBlock[myStateFrameBlock.StateCount]; - for (int i = 0; i < myStateFrameBlock.StateCount; i++) - { - Common.SendToDebug("Reading STATE POINTER BLOCK " + (i + 1) + " at: " + fs.Position); - // Position is relative to state frame - myStateFrameBlock.StatePointer[i].Location = myHeader.SR + BitConverter.ToUInt32(br_read(4), 0); - myStateFrameBlock.StatePointer[i].EventMask = new BitArray(br_read(8)); - Common.SendToDebug("Pointer: " + myStateFrameBlock.StatePointer[i].Location); - Common.SendToDebug("Total potential EventMask bits: " + - myStateFrameBlock.StatePointer[i].EventMask.Count); - - //// Read STATE BLOCK - //long CurPos = fs.Position; - //fs.Seek(CurPos, SeekOrigin.Begin); - } - } - - - // STATE BLOCK - // For each StateFrameBlock there is one StateBlock with multiple event handlers - - if (myStateFrameBlock.StateCount > 0) - { - // Go through all State Frame Pointers found - for (int i = 0; i < myStateFrameBlock.StateCount; i++) - { - fs.Seek(myStateFrameBlock.StatePointer[i].Location, SeekOrigin.Begin); - Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " at: " + fs.Position); - - // READ: STATE BLOCK HEADER - myStateFrameBlock.StatePointer[i].StateBlock = new LSO_Struct.StateBlock(); - myStateFrameBlock.StatePointer[i].StateBlock.StartPos = (UInt32) fs.Position; // Note - myStateFrameBlock.StatePointer[i].StateBlock.HeaderSize = BitConverter.ToUInt32(br_read(4), 0); - myStateFrameBlock.StatePointer[i].StateBlock.Unknown = br_read(1)[0]; - myStateFrameBlock.StatePointer[i].StateBlock.EndPos = (UInt32) fs.Position; // Note - Common.SendToDebug("State block Start Pos: " + myStateFrameBlock.StatePointer[i].StateBlock.StartPos); - Common.SendToDebug("State block Header Size: " + - myStateFrameBlock.StatePointer[i].StateBlock.HeaderSize); - Common.SendToDebug("State block Header End Pos: " + - myStateFrameBlock.StatePointer[i].StateBlock.EndPos); - - // We need to count number of bits flagged in EventMask? - - - // for each bit in myStateFrameBlock.StatePointer[i].EventMask - - // ADDING TO ALL RIGHT NOW, SHOULD LIMIT TO ONLY THE ONES IN USE - //TODO: Create event hooks - myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers = - new LSO_Struct.StateBlockHandler[myStateFrameBlock.StatePointer[i].EventMask.Count - 1]; - for (int ii = 0; ii < myStateFrameBlock.StatePointer[i].EventMask.Count - 1; ii++) - { - if (myStateFrameBlock.StatePointer[i].EventMask.Get(ii) == true) - { - // We got an event - // READ: STATE BLOCK HANDLER - Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " HANDLER matching EVENT MASK " + ii + - " (" + ((LSO_Enums.Event_Mask_Values) ii).ToString() + ") at: " + - fs.Position); - myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer = - myStateFrameBlock.StatePointer[i].StateBlock.EndPos + - BitConverter.ToUInt32(br_read(4), 0); - myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CallFrameSize = - BitConverter.ToUInt32(br_read(4), 0); - 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); - 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); - } - } - } - } - - - //// READ FUNCTION CODE CHUNKS - //// Functions + Function start pos (GFR) - //// TODO: Somehow be able to identify and reference this - //LSO_Struct.CodeChunk[] myFunctionCodeChunk; - //if (myFunctionBlock.FunctionCount > 0) - //{ - // myFunctionCodeChunk = new LSO_Struct.CodeChunk[myFunctionBlock.FunctionCount]; - // for (int i = 0; i < myFunctionBlock.FunctionCount; i++) - // { - // Common.SendToDebug("Reading Function Code Chunk " + i); - // myFunctionCodeChunk[i] = GetCodeChunk((UInt32)myFunctionBlock.CodeChunkPointer[i]); - // } - - //} - // READ EVENT CODE CHUNKS - LSO_Struct.CodeChunk[] myEventCodeChunk; - if (myStateFrameBlock.StateCount > 0) - { - myEventCodeChunk = new LSO_Struct.CodeChunk[myStateFrameBlock.StateCount]; - for (int i = 0; i < myStateFrameBlock.StateCount; i++) - { - // TODO: Somehow organize events and functions so they can be found again, - // two level search ain't no good - for (int ii = 0; ii < myStateFrameBlock.StatePointer[i].EventMask.Count - 1; ii++) - { - if (myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer > 0) - { - Common.SendToDebug("Reading Event Code Chunk state " + i + ", event " + - (LSO_Enums.Event_Mask_Values) ii); - - - // Override a Method / Function - string eventname = i + "_event_" + (LSO_Enums.Event_Mask_Values) ii; - Common.SendToDebug("Event Name: " + eventname); - if (Common.IL_ProcessCodeChunks) - { - EventList.Add(eventname); - - // JUMP TO CODE PROCESSOR - ProcessCodeChunk( - myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer, - typeBuilder, eventname); - } - } - } - } - } - - - if (Common.IL_CreateFunctionList) - IL_INSERT_FUNCTIONLIST(); - } - - internal LSO_Struct.HeapBlock GetHeap(UInt32 pos) - { - // HEAP BLOCK - // TODO:? Special read for strings/keys (null terminated) and lists (pointers to other HEAP entries) - Common.SendToDebug("Reading HEAP BLOCK at: " + pos); - fs.Seek(pos, SeekOrigin.Begin); - - LSO_Struct.HeapBlock myHeapBlock = new LSO_Struct.HeapBlock(); - myHeapBlock.DataBlockSize = BitConverter.ToInt32(br_read(4), 0); - myHeapBlock.ObjectType = br_read(1)[0]; - myHeapBlock.ReferenceCount = BitConverter.ToUInt16(br_read(2), 0); - //myHeapBlock.Data = br_read(getObjectSize(myHeapBlock.ObjectType)); - // Don't read it reversed - myHeapBlock.Data = new byte[myHeapBlock.DataBlockSize - 1]; - br.Read(myHeapBlock.Data, 0, myHeapBlock.DataBlockSize - 1); - - - Common.SendToDebug("Heap Block Data Block Size: " + myHeapBlock.DataBlockSize); - Common.SendToDebug("Heap Block ObjectType: " + - ((LSO_Enums.Variable_Type_Codes) myHeapBlock.ObjectType).ToString()); - Common.SendToDebug("Heap Block Reference Count: " + myHeapBlock.ReferenceCount); - - return myHeapBlock; - } - - private byte[] br_read(int len) - { - if (len <= 0) - return null; - - try - { - byte[] bytes = new byte[len]; - for (int i = len - 1; i > -1; i--) - bytes[i] = br.ReadByte(); - return bytes; - } - catch (Exception e) - { - Common.SendToDebug("Exception: " + e.ToString()); - throw (e); - } - } - - //private byte[] br_read_smallendian(int len) - //{ - // byte[] bytes = new byte[len]; - // br.Read(bytes,0, len); - // return bytes; - //} - private Type getLLObjectType(byte objectCode) - { - switch ((LSO_Enums.Variable_Type_Codes) objectCode) - { - case LSO_Enums.Variable_Type_Codes.Void: - return typeof (void); - case LSO_Enums.Variable_Type_Codes.Integer: - return typeof (UInt32); - case LSO_Enums.Variable_Type_Codes.Float: - return typeof (float); - case LSO_Enums.Variable_Type_Codes.String: - return typeof (string); - case LSO_Enums.Variable_Type_Codes.Key: - return typeof (string); - case LSO_Enums.Variable_Type_Codes.Vector: - return typeof (LSO_Enums.Vector); - case LSO_Enums.Variable_Type_Codes.Rotation: - return typeof (LSO_Enums.Rotation); - case LSO_Enums.Variable_Type_Codes.List: - Common.SendToDebug("TODO: List datatype not implemented yet!"); - return typeof (ArrayList); - case LSO_Enums.Variable_Type_Codes.Null: - Common.SendToDebug("TODO: Datatype null is not implemented, using string instead.!"); - return typeof (string); - default: - Common.SendToDebug("Lookup of LSL datatype " + objectCode + - " to .Net datatype failed: Unknown LSL datatype. Defaulting to object."); - return typeof (object); - } - } - - private int getObjectSize(byte ObjectType) - { - switch ((LSO_Enums.Variable_Type_Codes) ObjectType) - { - case LSO_Enums.Variable_Type_Codes.Integer: - case LSO_Enums.Variable_Type_Codes.Float: - case LSO_Enums.Variable_Type_Codes.String: - case LSO_Enums.Variable_Type_Codes.Key: - case LSO_Enums.Variable_Type_Codes.List: - return 4; - case LSO_Enums.Variable_Type_Codes.Vector: - return 12; - case LSO_Enums.Variable_Type_Codes.Rotation: - return 16; - default: - return 0; - } - } - - private string Read_String() - { - string ret = ""; - byte reader = br_read(1)[0]; - while (reader != 0x000) - { - ret += (char) reader; - reader = br_read(1)[0]; - } - return ret; - } - - /// - /// Reads a code chunk and creates IL - /// - /// Absolute position in file. REMEMBER TO ADD myHeader.GFR! - /// TypeBuilder for assembly - /// Name of event (function) to generate - private void ProcessCodeChunk(UInt32 pos, TypeBuilder typeBuilder, string eventname) - { - LSO_Struct.CodeChunk myCodeChunk = new LSO_Struct.CodeChunk(); - - Common.SendToDebug("Reading Function Code Chunk at: " + pos); - fs.Seek(pos, SeekOrigin.Begin); - myCodeChunk.CodeChunkHeaderSize = BitConverter.ToUInt32(br_read(4), 0); - Common.SendToDebug("CodeChunk Header Size: " + myCodeChunk.CodeChunkHeaderSize); - // Read until null - myCodeChunk.Comment = Read_String(); - Common.SendToDebug("Function comment: " + myCodeChunk.Comment); - myCodeChunk.ReturnTypePos = br_read(1)[0]; - myCodeChunk.ReturnType = GetStaticBlock((long) myCodeChunk.ReturnTypePos + (long) myHeader.GVR); - Common.SendToDebug("Return type #" + myCodeChunk.ReturnType.ObjectType + ": " + - ((LSO_Enums.Variable_Type_Codes) myCodeChunk.ReturnType.ObjectType).ToString()); - - - // TODO: How to determine number of codechunks -- does this method work? - myCodeChunk.CodeChunkArguments = new List(); - byte reader = br_read(1)[0]; - reader = br_read(1)[0]; - - // NOTE ON CODE CHUNK ARGUMENTS - // This determins type definition - int ccount = 0; - while (reader != 0x000) - { - ccount++; - Common.SendToDebug("Reading Code Chunk Argument " + ccount); - LSO_Struct.CodeChunkArgument CCA = new LSO_Struct.CodeChunkArgument(); - CCA.FunctionReturnTypePos = reader; - reader = br_read(1)[0]; - CCA.NullString = reader; - CCA.FunctionReturnType = GetStaticBlock(CCA.FunctionReturnTypePos + myHeader.GVR); - myCodeChunk.CodeChunkArguments.Add(CCA); - Common.SendToDebug("Code Chunk Argument " + ccount + " type #" + CCA.FunctionReturnType.ObjectType + - ": " + (LSO_Enums.Variable_Type_Codes) CCA.FunctionReturnType.ObjectType); - } - // Create string array - Type[] MethodArgs = new Type[myCodeChunk.CodeChunkArguments.Count]; - for (int _ic = 0; _ic < myCodeChunk.CodeChunkArguments.Count; _ic++) - { - MethodArgs[_ic] = getLLObjectType(myCodeChunk.CodeChunkArguments[_ic].FunctionReturnType.ObjectType); - Common.SendToDebug("Method argument " + _ic + ": " + - getLLObjectType(myCodeChunk.CodeChunkArguments[_ic].FunctionReturnType.ObjectType). - ToString()); - } - // End marker is 0x000 - myCodeChunk.EndMarker = reader; - - - // - // Emit: START OF METHOD (FUNCTION) - // - - Common.SendToDebug("CLR:" + eventname + ":MethodBuilder methodBuilder = typeBuilder.DefineMethod..."); - MethodBuilder methodBuilder = typeBuilder.DefineMethod(eventname, - MethodAttributes.Public, - typeof (void), - new Type[] {typeof (object)}); - //MethodArgs); - //typeof(void), //getLLObjectType(myCodeChunk.ReturnType), - // new Type[] { typeof(object) }, //); - - //Common.SendToDebug("CLR:" + eventname + ":typeBuilder.DefineMethodOverride(methodBuilder..."); - //typeBuilder.DefineMethodOverride(methodBuilder, - // typeof(LSL_CLRInterface.LSLScript).GetMethod(eventname)); - - // Create the IL generator - - Common.SendToDebug("CLR:" + eventname + ":ILGenerator il = methodBuilder.GetILGenerator();"); - ILGenerator il = methodBuilder.GetILGenerator(); - - - if (Common.IL_UseTryCatch) - IL_INSERT_TRY(il, eventname); - - - // Push Console.WriteLine command to stack ... Console.WriteLine("Hello World!"); - //Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); - //il.Emit(OpCodes.Call, typeof(Console).GetMethod - // ("WriteLine", new Type[] { typeof(string) })); - - //Common.SendToDebug("STARTUP: il.Emit(OpCodes.Ldc_I4_S, 0);"); - - //il.Emit(OpCodes.Ldc_I4_S, 0); - for (int _ic = 0; _ic < myCodeChunk.CodeChunkArguments.Count; _ic++) - { - Common.SendToDebug("PARAMS: il.Emit(OpCodes.Ldarg, " + _ic + ");"); - il.Emit(OpCodes.Ldarg, _ic); - } - - - // - // CALLING OPCODE PROCESSOR, one command at the time TO GENERATE IL - // - bool FoundRet = false; - while (FoundRet == false) - { - FoundRet = LSL_PROCESS_OPCODE(il); - } - - - if (Common.IL_UseTryCatch) - IL_INSERT_END_TRY(il, eventname); - - // Emit: RETURN FROM METHOD - il.Emit(OpCodes.Ret); - - return; - } - - private void IL_INSERT_FUNCTIONLIST() - { - Common.SendToDebug("Creating function list"); - - - string eventname = "GetFunctions"; - - Common.SendToDebug("Creating IL " + eventname); - // Define a private String field. - //FieldBuilder myField = myTypeBuilder.DefineField("EventList", typeof(String[]), FieldAttributes.Public); - - - //FieldBuilder mem = typeBuilder.DefineField("mem", typeof(Array), FieldAttributes.Private); - - - MethodBuilder methodBuilder = typeBuilder.DefineMethod(eventname, - MethodAttributes.Public, - typeof (string[]), - null); - - //typeBuilder.DefineMethodOverride(methodBuilder, - // typeof(LSL_CLRInterface.LSLScript).GetMethod(eventname)); - - ILGenerator il = methodBuilder.GetILGenerator(); - - - // IL_INSERT_TRY(il, eventname); - - // // Push string to stack - // il.Emit(OpCodes.Ldstr, "Inside " + eventname); - - //// Push Console.WriteLine command to stack ... Console.WriteLine("Hello World!"); - //il.Emit(OpCodes.Call, typeof(Console).GetMethod - // ("WriteLine", new Type[] { typeof(string) })); - - //initIL.Emit(OpCodes.Newobj, typeof(string[])); - - //string[] MyArray = new string[2] { "TestItem1" , "TestItem2" }; - - ////il.Emit(OpCodes.Ldarg_0); - - il.DeclareLocal(typeof (string[])); - - ////il.Emit(OpCodes.Ldarg_0); - il.Emit(OpCodes.Ldc_I4, EventList.Count); // Specify array length - il.Emit(OpCodes.Newarr, typeof (String)); // create new string array - il.Emit(OpCodes.Stloc_0); // Store array as local variable 0 in stack - ////SetFunctionList - - for (int lv = 0; lv < EventList.Count; lv++) - { - il.Emit(OpCodes.Ldloc_0); // Load local variable 0 onto stack - il.Emit(OpCodes.Ldc_I4, lv); // Push index position - il.Emit(OpCodes.Ldstr, EventList[lv]); // Push value - il.Emit(OpCodes.Stelem_Ref); // Perform array[index] = value - - //il.Emit(OpCodes.Ldarg_0); - //il.Emit(OpCodes.Ldstr, EventList[lv]); // Push value - //il.Emit(OpCodes.Call, typeof(LSL_BaseClass).GetMethod("AddFunction", new Type[] { typeof(string) })); - } - - - // IL_INSERT_END_TRY(il, eventname); - - - il.Emit(OpCodes.Ldloc_0); // Load local variable 0 onto stack - // il.Emit(OpCodes.Call, typeof(LSL_BaseClass).GetMethod("SetFunctionList", new Type[] { typeof(Array) })); - - il.Emit(OpCodes.Ret); // Return - } - - - private void IL_INSERT_TRY(ILGenerator il, string eventname) - { - /* - * CLR TRY - */ - //Common.SendToDebug("CLR:" + eventname + ":il.BeginExceptionBlock()"); - il.BeginExceptionBlock(); - - // Push "Hello World!" string to stack - //Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Ldstr..."); - //il.Emit(OpCodes.Ldstr, "Starting CLR dynamic execution of: " + eventname); - } - - private void IL_INSERT_END_TRY(ILGenerator il, string eventname) - { - /* - * CATCH - */ - Common.SendToDebug("CLR:" + eventname + ":il.BeginCatchBlock(typeof(Exception));"); - il.BeginCatchBlock(typeof (Exception)); - - // Push "Hello World!" string to stack - Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Ldstr..."); - il.Emit(OpCodes.Ldstr, "Execption executing dynamic CLR function " + eventname + ": "); - - //call void [mscorlib]System.Console::WriteLine(string) - Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); - il.Emit(OpCodes.Call, typeof (Console).GetMethod - ("Write", new Type[] {typeof (string)})); - - //callvirt instance string [mscorlib]System.Exception::get_Message() - Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Callvirt..."); - il.Emit(OpCodes.Callvirt, typeof (Exception).GetMethod - ("get_Message")); - - //call void [mscorlib]System.Console::WriteLine(string) - Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); - il.Emit(OpCodes.Call, typeof (Console).GetMethod - ("WriteLine", new Type[] {typeof (string)})); - - /* - * CLR END TRY - */ - //Common.SendToDebug("CLR:" + eventname + ":il.EndExceptionBlock();"); - il.EndExceptionBlock(); - } - - private LSO_Struct.StaticBlock GetStaticBlock(long pos) - { - long FirstPos = fs.Position; - try - { - UInt32 position = (UInt32) pos; - // STATIC BLOCK - Common.SendToDebug("Reading STATIC BLOCK at: " + position); - fs.Seek(position, SeekOrigin.Begin); - - if (StaticBlocks.ContainsKey(position) == true) - { - Common.SendToDebug("Found cached STATIC BLOCK"); - - - return StaticBlocks[pos]; - } - - //int StaticBlockCount = 0; - // Read function blocks until we hit GFR - //while (fs.Position < myHeader.GFR) - //{ - //StaticBlockCount++; - - //Common.SendToDebug("Reading Static Block at: " + position); - - //fs.Seek(myHeader.GVR, SeekOrigin.Begin); - LSO_Struct.StaticBlock myStaticBlock = new LSO_Struct.StaticBlock(); - myStaticBlock.Static_Chunk_Header_Size = BitConverter.ToUInt32(br_read(4), 0); - myStaticBlock.ObjectType = br_read(1)[0]; - Common.SendToDebug("Static Block ObjectType: " + - ((LSO_Enums.Variable_Type_Codes) myStaticBlock.ObjectType).ToString()); - myStaticBlock.Unknown = br_read(1)[0]; - // Size of datatype varies - if (myStaticBlock.ObjectType != 0) - myStaticBlock.BlockVariable = br_read(getObjectSize(myStaticBlock.ObjectType)); - - StaticBlocks.Add(position, myStaticBlock); - //} - Common.SendToDebug("Done reading Static Block."); - return myStaticBlock; - } - finally - { - // Go back to original read pos - fs.Seek(FirstPos, SeekOrigin.Begin); - } - } - } +/* +* Copyright (c) Contributors, http://opensimulator.org/ +* See CONTRIBUTORS.TXT for a full list of copyright holders. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions are met: +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* * Redistributions in binary form must reproduce the above copyright +* notice, this list of conditions and the following disclaimer in the +* documentation and/or other materials provided with the distribution. +* * Neither the name of the OpenSim Project nor the +* names of its contributors may be used to endorse or promote products +* derived from this software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY +* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY +* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +* +*/ +/* Original code: Tedd Hansen */ +using System; +using System.Collections; +using System.Collections.Generic; +using System.IO; +using System.Reflection; +using System.Reflection.Emit; +using System.Text; +using OpenSim.Region.ScriptEngine.LSOEngine.LSO; + +namespace OpenSim.Region.ScriptEngine.LSOEngine.LSO +{ + internal partial class LSO_Parser + { + private string FileName; + private FileStream fs; + private BinaryReader br; + internal LSO_Struct.Header myHeader; + internal Dictionary StaticBlocks = new Dictionary(); + //private System.Collections.Hashtable StaticBlocks = new System.Collections.Hashtable(); + + private TypeBuilder typeBuilder; + private List EventList = new List(); + + public LSO_Parser(string _FileName, TypeBuilder _typeBuilder) + { + FileName = _FileName; + typeBuilder = _typeBuilder; + } + + internal void OpenFile() + { + // Open + Common.SendToDebug("Opening filename: " + FileName); + fs = File.Open(FileName, FileMode.Open, FileAccess.Read, FileShare.Read); + br = new BinaryReader(fs, Encoding.BigEndianUnicode); + } + + internal void CloseFile() + { + // Close + br.Close(); + fs.Close(); + } + + + /// + /// Parse LSO file. + /// + public void Parse() + { + // The LSO Format consist of 6 major blocks: header, statics, functions, states, heap, and stack. + + + // HEADER BLOCK + Common.SendToDebug("Reading HEADER BLOCK at: 0"); + fs.Seek(0, SeekOrigin.Begin); + myHeader = new LSO_Struct.Header(); + myHeader.TM = BitConverter.ToUInt32(br_read(4), 0); + myHeader.IP = BitConverter.ToUInt32(br_read(4), 0); + myHeader.VN = BitConverter.ToUInt32(br_read(4), 0); + myHeader.BP = BitConverter.ToUInt32(br_read(4), 0); + myHeader.SP = BitConverter.ToUInt32(br_read(4), 0); + myHeader.HR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.HP = BitConverter.ToUInt32(br_read(4), 0); + myHeader.CS = BitConverter.ToUInt32(br_read(4), 0); + myHeader.NS = BitConverter.ToUInt32(br_read(4), 0); + myHeader.CE = BitConverter.ToUInt32(br_read(4), 0); + myHeader.IE = BitConverter.ToUInt32(br_read(4), 0); + myHeader.ER = BitConverter.ToUInt32(br_read(4), 0); + myHeader.FR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.SLR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.GVR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.GFR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.PR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.ESR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.SR = BitConverter.ToUInt32(br_read(4), 0); + myHeader.NCE = BitConverter.ToUInt64(br_read(8), 0); + myHeader.NIE = BitConverter.ToUInt64(br_read(8), 0); + myHeader.NER = BitConverter.ToUInt64(br_read(8), 0); + + // Print Header Block to debug + Common.SendToDebug("TM - Top of memory (size): " + myHeader.TM); + Common.SendToDebug("IP - Instruction Pointer (0=not running): " + myHeader.IP); + Common.SendToDebug("VN - Version number: " + myHeader.VN); + Common.SendToDebug("BP - Local Frame Pointer: " + myHeader.BP); + Common.SendToDebug("SP - Stack Pointer: " + myHeader.SP); + Common.SendToDebug("HR - Heap Register: " + myHeader.HR); + Common.SendToDebug("HP - Heap Pointer: " + myHeader.HP); + Common.SendToDebug("CS - Current State: " + myHeader.CS); + Common.SendToDebug("NS - Next State: " + myHeader.NS); + Common.SendToDebug("CE - Current Events: " + myHeader.CE); + Common.SendToDebug("IE - In Event: " + myHeader.IE); + Common.SendToDebug("ER - Event Register: " + myHeader.ER); + Common.SendToDebug("FR - Fault Register: " + myHeader.FR); + Common.SendToDebug("SLR - Sleep Register: " + myHeader.SLR); + Common.SendToDebug("GVR - Global Variable Register: " + myHeader.GVR); + Common.SendToDebug("GFR - Global Function Register: " + myHeader.GFR); + Common.SendToDebug("PR - Parameter Register: " + myHeader.PR); + Common.SendToDebug("ESR - Energy Supply Register: " + myHeader.ESR); + Common.SendToDebug("SR - State Register: " + myHeader.SR); + Common.SendToDebug("NCE - 64-bit Current Events: " + myHeader.NCE); + Common.SendToDebug("NIE - 64-bit In Events: " + myHeader.NIE); + Common.SendToDebug("NER - 64-bit Event Register: " + myHeader.NER); + Common.SendToDebug("Read position when exiting HEADER BLOCK: " + fs.Position); + + // STATIC BLOCK + Common.SendToDebug("Reading STATIC BLOCK at: " + myHeader.GVR); + fs.Seek(myHeader.GVR, SeekOrigin.Begin); + int StaticBlockCount = 0; + // Read function blocks until we hit GFR + while (fs.Position < myHeader.GFR) + { + StaticBlockCount++; + long startReadPos = fs.Position; + Common.SendToDebug("Reading Static Block " + StaticBlockCount + " at: " + startReadPos); + + //fs.Seek(myHeader.GVR, SeekOrigin.Begin); + LSO_Struct.StaticBlock myStaticBlock = new LSO_Struct.StaticBlock(); + myStaticBlock.Static_Chunk_Header_Size = BitConverter.ToUInt32(br_read(4), 0); + myStaticBlock.ObjectType = br_read(1)[0]; + Common.SendToDebug("Static Block ObjectType: " + + ((LSO_Enums.Variable_Type_Codes) myStaticBlock.ObjectType).ToString()); + myStaticBlock.Unknown = br_read(1)[0]; + // Size of datatype varies -- what about strings? + if (myStaticBlock.ObjectType != 0) + myStaticBlock.BlockVariable = br_read(getObjectSize(myStaticBlock.ObjectType)); + + StaticBlocks.Add((UInt32) startReadPos, myStaticBlock); + } + Common.SendToDebug("Number of Static Blocks read: " + StaticBlockCount); + + + // FUNCTION BLOCK + // Always right after STATIC BLOCK + LSO_Struct.FunctionBlock myFunctionBlock = new LSO_Struct.FunctionBlock(); + if (myHeader.GFR == myHeader.SR) + { + // If GFR and SR are at same position then there is no fuction block + Common.SendToDebug("No FUNCTION BLOCK found"); + } + else + { + Common.SendToDebug("Reading FUNCTION BLOCK at: " + myHeader.GFR); + fs.Seek(myHeader.GFR, SeekOrigin.Begin); + myFunctionBlock.FunctionCount = BitConverter.ToUInt32(br_read(4), 0); + Common.SendToDebug("Number of functions in Fuction Block: " + myFunctionBlock.FunctionCount); + if (myFunctionBlock.FunctionCount > 0) + { + myFunctionBlock.CodeChunkPointer = new UInt32[myFunctionBlock.FunctionCount]; + for (int i = 0; i < myFunctionBlock.FunctionCount; i++) + { + Common.SendToDebug("Reading function " + i + " at: " + fs.Position); + // TODO: ADD TO FUNCTION LIST (How do we identify it later?) + // Note! Absolute position + myFunctionBlock.CodeChunkPointer[i] = BitConverter.ToUInt32(br_read(4), 0) + myHeader.GFR; + Common.SendToDebug("Fuction " + i + " code chunk position: " + + myFunctionBlock.CodeChunkPointer[i]); + } + } + } + + + // STATE FRAME BLOCK + // Always right after FUNCTION BLOCK + Common.SendToDebug("Reading STATE BLOCK at: " + myHeader.SR); + fs.Seek(myHeader.SR, SeekOrigin.Begin); + LSO_Struct.StateFrameBlock myStateFrameBlock = new LSO_Struct.StateFrameBlock(); + myStateFrameBlock.StateCount = BitConverter.ToUInt32(br_read(4), 0); + if (myStateFrameBlock.StateCount > 0) + { + // Initialize array + myStateFrameBlock.StatePointer = new LSO_Struct.StatePointerBlock[myStateFrameBlock.StateCount]; + for (int i = 0; i < myStateFrameBlock.StateCount; i++) + { + Common.SendToDebug("Reading STATE POINTER BLOCK " + (i + 1) + " at: " + fs.Position); + // Position is relative to state frame + myStateFrameBlock.StatePointer[i].Location = myHeader.SR + BitConverter.ToUInt32(br_read(4), 0); + myStateFrameBlock.StatePointer[i].EventMask = new BitArray(br_read(8)); + Common.SendToDebug("Pointer: " + myStateFrameBlock.StatePointer[i].Location); + Common.SendToDebug("Total potential EventMask bits: " + + myStateFrameBlock.StatePointer[i].EventMask.Count); + + //// Read STATE BLOCK + //long CurPos = fs.Position; + //fs.Seek(CurPos, SeekOrigin.Begin); + } + } + + + // STATE BLOCK + // For each StateFrameBlock there is one StateBlock with multiple event handlers + + if (myStateFrameBlock.StateCount > 0) + { + // Go through all State Frame Pointers found + for (int i = 0; i < myStateFrameBlock.StateCount; i++) + { + fs.Seek(myStateFrameBlock.StatePointer[i].Location, SeekOrigin.Begin); + Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " at: " + fs.Position); + + // READ: STATE BLOCK HEADER + myStateFrameBlock.StatePointer[i].StateBlock = new LSO_Struct.StateBlock(); + myStateFrameBlock.StatePointer[i].StateBlock.StartPos = (UInt32) fs.Position; // Note + myStateFrameBlock.StatePointer[i].StateBlock.HeaderSize = BitConverter.ToUInt32(br_read(4), 0); + myStateFrameBlock.StatePointer[i].StateBlock.Unknown = br_read(1)[0]; + myStateFrameBlock.StatePointer[i].StateBlock.EndPos = (UInt32) fs.Position; // Note + Common.SendToDebug("State block Start Pos: " + myStateFrameBlock.StatePointer[i].StateBlock.StartPos); + Common.SendToDebug("State block Header Size: " + + myStateFrameBlock.StatePointer[i].StateBlock.HeaderSize); + Common.SendToDebug("State block Header End Pos: " + + myStateFrameBlock.StatePointer[i].StateBlock.EndPos); + + // We need to count number of bits flagged in EventMask? + + + // for each bit in myStateFrameBlock.StatePointer[i].EventMask + + // ADDING TO ALL RIGHT NOW, SHOULD LIMIT TO ONLY THE ONES IN USE + //TODO: Create event hooks + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers = + new LSO_Struct.StateBlockHandler[myStateFrameBlock.StatePointer[i].EventMask.Count - 1]; + for (int ii = 0; ii < myStateFrameBlock.StatePointer[i].EventMask.Count - 1; ii++) + { + if (myStateFrameBlock.StatePointer[i].EventMask.Get(ii) == true) + { + // We got an event + // READ: STATE BLOCK HANDLER + Common.SendToDebug("Reading STATE BLOCK " + (i + 1) + " HANDLER matching EVENT MASK " + ii + + " (" + ((LSO_Enums.Event_Mask_Values) ii).ToString() + ") at: " + + fs.Position); + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer = + myStateFrameBlock.StatePointer[i].StateBlock.EndPos + + BitConverter.ToUInt32(br_read(4), 0); + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CallFrameSize = + BitConverter.ToUInt32(br_read(4), 0); + 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); + 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); + } + } + } + } + + + //// READ FUNCTION CODE CHUNKS + //// Functions + Function start pos (GFR) + //// TODO: Somehow be able to identify and reference this + //LSO_Struct.CodeChunk[] myFunctionCodeChunk; + //if (myFunctionBlock.FunctionCount > 0) + //{ + // myFunctionCodeChunk = new LSO_Struct.CodeChunk[myFunctionBlock.FunctionCount]; + // for (int i = 0; i < myFunctionBlock.FunctionCount; i++) + // { + // Common.SendToDebug("Reading Function Code Chunk " + i); + // myFunctionCodeChunk[i] = GetCodeChunk((UInt32)myFunctionBlock.CodeChunkPointer[i]); + // } + + //} + // READ EVENT CODE CHUNKS + LSO_Struct.CodeChunk[] myEventCodeChunk; + if (myStateFrameBlock.StateCount > 0) + { + myEventCodeChunk = new LSO_Struct.CodeChunk[myStateFrameBlock.StateCount]; + for (int i = 0; i < myStateFrameBlock.StateCount; i++) + { + // TODO: Somehow organize events and functions so they can be found again, + // two level search ain't no good + for (int ii = 0; ii < myStateFrameBlock.StatePointer[i].EventMask.Count - 1; ii++) + { + if (myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer > 0) + { + Common.SendToDebug("Reading Event Code Chunk state " + i + ", event " + + (LSO_Enums.Event_Mask_Values) ii); + + + // Override a Method / Function + string eventname = i + "_event_" + (LSO_Enums.Event_Mask_Values) ii; + Common.SendToDebug("Event Name: " + eventname); + if (Common.IL_ProcessCodeChunks) + { + EventList.Add(eventname); + + // JUMP TO CODE PROCESSOR + ProcessCodeChunk( + myStateFrameBlock.StatePointer[i].StateBlock.StateBlockHandlers[ii].CodeChunkPointer, + typeBuilder, eventname); + } + } + } + } + } + + + if (Common.IL_CreateFunctionList) + IL_INSERT_FUNCTIONLIST(); + } + + internal LSO_Struct.HeapBlock GetHeap(UInt32 pos) + { + // HEAP BLOCK + // TODO:? Special read for strings/keys (null terminated) and lists (pointers to other HEAP entries) + Common.SendToDebug("Reading HEAP BLOCK at: " + pos); + fs.Seek(pos, SeekOrigin.Begin); + + LSO_Struct.HeapBlock myHeapBlock = new LSO_Struct.HeapBlock(); + myHeapBlock.DataBlockSize = BitConverter.ToInt32(br_read(4), 0); + myHeapBlock.ObjectType = br_read(1)[0]; + myHeapBlock.ReferenceCount = BitConverter.ToUInt16(br_read(2), 0); + //myHeapBlock.Data = br_read(getObjectSize(myHeapBlock.ObjectType)); + // Don't read it reversed + myHeapBlock.Data = new byte[myHeapBlock.DataBlockSize - 1]; + br.Read(myHeapBlock.Data, 0, myHeapBlock.DataBlockSize - 1); + + + Common.SendToDebug("Heap Block Data Block Size: " + myHeapBlock.DataBlockSize); + Common.SendToDebug("Heap Block ObjectType: " + + ((LSO_Enums.Variable_Type_Codes) myHeapBlock.ObjectType).ToString()); + Common.SendToDebug("Heap Block Reference Count: " + myHeapBlock.ReferenceCount); + + return myHeapBlock; + } + + private byte[] br_read(int len) + { + if (len <= 0) + return null; + + try + { + byte[] bytes = new byte[len]; + for (int i = len - 1; i > -1; i--) + bytes[i] = br.ReadByte(); + return bytes; + } + catch (Exception e) + { + Common.SendToDebug("Exception: " + e.ToString()); + throw (e); + } + } + + //private byte[] br_read_smallendian(int len) + //{ + // byte[] bytes = new byte[len]; + // br.Read(bytes,0, len); + // return bytes; + //} + private Type getLLObjectType(byte objectCode) + { + switch ((LSO_Enums.Variable_Type_Codes) objectCode) + { + case LSO_Enums.Variable_Type_Codes.Void: + return typeof (void); + case LSO_Enums.Variable_Type_Codes.Integer: + return typeof (UInt32); + case LSO_Enums.Variable_Type_Codes.Float: + return typeof (float); + case LSO_Enums.Variable_Type_Codes.String: + return typeof (string); + case LSO_Enums.Variable_Type_Codes.Key: + return typeof (string); + case LSO_Enums.Variable_Type_Codes.Vector: + return typeof (LSO_Enums.Vector); + case LSO_Enums.Variable_Type_Codes.Rotation: + return typeof (LSO_Enums.Rotation); + case LSO_Enums.Variable_Type_Codes.List: + Common.SendToDebug("TODO: List datatype not implemented yet!"); + return typeof (ArrayList); + case LSO_Enums.Variable_Type_Codes.Null: + Common.SendToDebug("TODO: Datatype null is not implemented, using string instead.!"); + return typeof (string); + default: + Common.SendToDebug("Lookup of LSL datatype " + objectCode + + " to .Net datatype failed: Unknown LSL datatype. Defaulting to object."); + return typeof (object); + } + } + + private int getObjectSize(byte ObjectType) + { + switch ((LSO_Enums.Variable_Type_Codes) ObjectType) + { + case LSO_Enums.Variable_Type_Codes.Integer: + case LSO_Enums.Variable_Type_Codes.Float: + case LSO_Enums.Variable_Type_Codes.String: + case LSO_Enums.Variable_Type_Codes.Key: + case LSO_Enums.Variable_Type_Codes.List: + return 4; + case LSO_Enums.Variable_Type_Codes.Vector: + return 12; + case LSO_Enums.Variable_Type_Codes.Rotation: + return 16; + default: + return 0; + } + } + + private string Read_String() + { + string ret = ""; + byte reader = br_read(1)[0]; + while (reader != 0x000) + { + ret += (char) reader; + reader = br_read(1)[0]; + } + return ret; + } + + /// + /// Reads a code chunk and creates IL + /// + /// Absolute position in file. REMEMBER TO ADD myHeader.GFR! + /// TypeBuilder for assembly + /// Name of event (function) to generate + private void ProcessCodeChunk(UInt32 pos, TypeBuilder typeBuilder, string eventname) + { + LSO_Struct.CodeChunk myCodeChunk = new LSO_Struct.CodeChunk(); + + Common.SendToDebug("Reading Function Code Chunk at: " + pos); + fs.Seek(pos, SeekOrigin.Begin); + myCodeChunk.CodeChunkHeaderSize = BitConverter.ToUInt32(br_read(4), 0); + Common.SendToDebug("CodeChunk Header Size: " + myCodeChunk.CodeChunkHeaderSize); + // Read until null + myCodeChunk.Comment = Read_String(); + Common.SendToDebug("Function comment: " + myCodeChunk.Comment); + myCodeChunk.ReturnTypePos = br_read(1)[0]; + myCodeChunk.ReturnType = GetStaticBlock((long) myCodeChunk.ReturnTypePos + (long) myHeader.GVR); + Common.SendToDebug("Return type #" + myCodeChunk.ReturnType.ObjectType + ": " + + ((LSO_Enums.Variable_Type_Codes) myCodeChunk.ReturnType.ObjectType).ToString()); + + + // TODO: How to determine number of codechunks -- does this method work? + myCodeChunk.CodeChunkArguments = new List(); + byte reader = br_read(1)[0]; + reader = br_read(1)[0]; + + // NOTE ON CODE CHUNK ARGUMENTS + // This determins type definition + int ccount = 0; + while (reader != 0x000) + { + ccount++; + Common.SendToDebug("Reading Code Chunk Argument " + ccount); + LSO_Struct.CodeChunkArgument CCA = new LSO_Struct.CodeChunkArgument(); + CCA.FunctionReturnTypePos = reader; + reader = br_read(1)[0]; + CCA.NullString = reader; + CCA.FunctionReturnType = GetStaticBlock(CCA.FunctionReturnTypePos + myHeader.GVR); + myCodeChunk.CodeChunkArguments.Add(CCA); + Common.SendToDebug("Code Chunk Argument " + ccount + " type #" + CCA.FunctionReturnType.ObjectType + + ": " + (LSO_Enums.Variable_Type_Codes) CCA.FunctionReturnType.ObjectType); + } + // Create string array + Type[] MethodArgs = new Type[myCodeChunk.CodeChunkArguments.Count]; + for (int _ic = 0; _ic < myCodeChunk.CodeChunkArguments.Count; _ic++) + { + MethodArgs[_ic] = getLLObjectType(myCodeChunk.CodeChunkArguments[_ic].FunctionReturnType.ObjectType); + Common.SendToDebug("Method argument " + _ic + ": " + + getLLObjectType(myCodeChunk.CodeChunkArguments[_ic].FunctionReturnType.ObjectType). + ToString()); + } + // End marker is 0x000 + myCodeChunk.EndMarker = reader; + + + // + // Emit: START OF METHOD (FUNCTION) + // + + Common.SendToDebug("CLR:" + eventname + ":MethodBuilder methodBuilder = typeBuilder.DefineMethod..."); + MethodBuilder methodBuilder = typeBuilder.DefineMethod(eventname, + MethodAttributes.Public, + typeof (void), + new Type[] {typeof (object)}); + //MethodArgs); + //typeof(void), //getLLObjectType(myCodeChunk.ReturnType), + // new Type[] { typeof(object) }, //); + + //Common.SendToDebug("CLR:" + eventname + ":typeBuilder.DefineMethodOverride(methodBuilder..."); + //typeBuilder.DefineMethodOverride(methodBuilder, + // typeof(LSL_CLRInterface.LSLScript).GetMethod(eventname)); + + // Create the IL generator + + Common.SendToDebug("CLR:" + eventname + ":ILGenerator il = methodBuilder.GetILGenerator();"); + ILGenerator il = methodBuilder.GetILGenerator(); + + + if (Common.IL_UseTryCatch) + IL_INSERT_TRY(il, eventname); + + + // Push Console.WriteLine command to stack ... Console.WriteLine("Hello World!"); + //Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); + //il.Emit(OpCodes.Call, typeof(Console).GetMethod + // ("WriteLine", new Type[] { typeof(string) })); + + //Common.SendToDebug("STARTUP: il.Emit(OpCodes.Ldc_I4_S, 0);"); + + //il.Emit(OpCodes.Ldc_I4_S, 0); + for (int _ic = 0; _ic < myCodeChunk.CodeChunkArguments.Count; _ic++) + { + Common.SendToDebug("PARAMS: il.Emit(OpCodes.Ldarg, " + _ic + ");"); + il.Emit(OpCodes.Ldarg, _ic); + } + + + // + // CALLING OPCODE PROCESSOR, one command at the time TO GENERATE IL + // + bool FoundRet = false; + while (FoundRet == false) + { + FoundRet = LSL_PROCESS_OPCODE(il); + } + + + if (Common.IL_UseTryCatch) + IL_INSERT_END_TRY(il, eventname); + + // Emit: RETURN FROM METHOD + il.Emit(OpCodes.Ret); + + return; + } + + private void IL_INSERT_FUNCTIONLIST() + { + Common.SendToDebug("Creating function list"); + + + string eventname = "GetFunctions"; + + Common.SendToDebug("Creating IL " + eventname); + // Define a private String field. + //FieldBuilder myField = myTypeBuilder.DefineField("EventList", typeof(String[]), FieldAttributes.Public); + + + //FieldBuilder mem = typeBuilder.DefineField("mem", typeof(Array), FieldAttributes.Private); + + + MethodBuilder methodBuilder = typeBuilder.DefineMethod(eventname, + MethodAttributes.Public, + typeof (string[]), + null); + + //typeBuilder.DefineMethodOverride(methodBuilder, + // typeof(LSL_CLRInterface.LSLScript).GetMethod(eventname)); + + ILGenerator il = methodBuilder.GetILGenerator(); + + + // IL_INSERT_TRY(il, eventname); + + // // Push string to stack + // il.Emit(OpCodes.Ldstr, "Inside " + eventname); + + //// Push Console.WriteLine command to stack ... Console.WriteLine("Hello World!"); + //il.Emit(OpCodes.Call, typeof(Console).GetMethod + // ("WriteLine", new Type[] { typeof(string) })); + + //initIL.Emit(OpCodes.Newobj, typeof(string[])); + + //string[] MyArray = new string[2] { "TestItem1" , "TestItem2" }; + + ////il.Emit(OpCodes.Ldarg_0); + + il.DeclareLocal(typeof (string[])); + + ////il.Emit(OpCodes.Ldarg_0); + il.Emit(OpCodes.Ldc_I4, EventList.Count); // Specify array length + il.Emit(OpCodes.Newarr, typeof (String)); // create new string array + il.Emit(OpCodes.Stloc_0); // Store array as local variable 0 in stack + ////SetFunctionList + + for (int lv = 0; lv < EventList.Count; lv++) + { + il.Emit(OpCodes.Ldloc_0); // Load local variable 0 onto stack + il.Emit(OpCodes.Ldc_I4, lv); // Push index position + il.Emit(OpCodes.Ldstr, EventList[lv]); // Push value + il.Emit(OpCodes.Stelem_Ref); // Perform array[index] = value + + //il.Emit(OpCodes.Ldarg_0); + //il.Emit(OpCodes.Ldstr, EventList[lv]); // Push value + //il.Emit(OpCodes.Call, typeof(LSL_BaseClass).GetMethod("AddFunction", new Type[] { typeof(string) })); + } + + + // IL_INSERT_END_TRY(il, eventname); + + + il.Emit(OpCodes.Ldloc_0); // Load local variable 0 onto stack + // il.Emit(OpCodes.Call, typeof(LSL_BaseClass).GetMethod("SetFunctionList", new Type[] { typeof(Array) })); + + il.Emit(OpCodes.Ret); // Return + } + + + private void IL_INSERT_TRY(ILGenerator il, string eventname) + { + /* + * CLR TRY + */ + //Common.SendToDebug("CLR:" + eventname + ":il.BeginExceptionBlock()"); + il.BeginExceptionBlock(); + + // Push "Hello World!" string to stack + //Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Ldstr..."); + //il.Emit(OpCodes.Ldstr, "Starting CLR dynamic execution of: " + eventname); + } + + private void IL_INSERT_END_TRY(ILGenerator il, string eventname) + { + /* + * CATCH + */ + Common.SendToDebug("CLR:" + eventname + ":il.BeginCatchBlock(typeof(Exception));"); + il.BeginCatchBlock(typeof (Exception)); + + // Push "Hello World!" string to stack + Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Ldstr..."); + il.Emit(OpCodes.Ldstr, "Execption executing dynamic CLR function " + eventname + ": "); + + //call void [mscorlib]System.Console::WriteLine(string) + Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); + il.Emit(OpCodes.Call, typeof (Console).GetMethod + ("Write", new Type[] {typeof (string)})); + + //callvirt instance string [mscorlib]System.Exception::get_Message() + Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Callvirt..."); + il.Emit(OpCodes.Callvirt, typeof (Exception).GetMethod + ("get_Message")); + + //call void [mscorlib]System.Console::WriteLine(string) + Common.SendToDebug("CLR:" + eventname + ":il.Emit(OpCodes.Call..."); + il.Emit(OpCodes.Call, typeof (Console).GetMethod + ("WriteLine", new Type[] {typeof (string)})); + + /* + * CLR END TRY + */ + //Common.SendToDebug("CLR:" + eventname + ":il.EndExceptionBlock();"); + il.EndExceptionBlock(); + } + + private LSO_Struct.StaticBlock GetStaticBlock(long pos) + { + long FirstPos = fs.Position; + try + { + UInt32 position = (UInt32) pos; + // STATIC BLOCK + Common.SendToDebug("Reading STATIC BLOCK at: " + position); + fs.Seek(position, SeekOrigin.Begin); + + if (StaticBlocks.ContainsKey(position) == true) + { + Common.SendToDebug("Found cached STATIC BLOCK"); + + + return StaticBlocks[pos]; + } + + //int StaticBlockCount = 0; + // Read function blocks until we hit GFR + //while (fs.Position < myHeader.GFR) + //{ + //StaticBlockCount++; + + //Common.SendToDebug("Reading Static Block at: " + position); + + //fs.Seek(myHeader.GVR, SeekOrigin.Begin); + LSO_Struct.StaticBlock myStaticBlock = new LSO_Struct.StaticBlock(); + myStaticBlock.Static_Chunk_Header_Size = BitConverter.ToUInt32(br_read(4), 0); + myStaticBlock.ObjectType = br_read(1)[0]; + Common.SendToDebug("Static Block ObjectType: " + + ((LSO_Enums.Variable_Type_Codes) myStaticBlock.ObjectType).ToString()); + myStaticBlock.Unknown = br_read(1)[0]; + // Size of datatype varies + if (myStaticBlock.ObjectType != 0) + myStaticBlock.BlockVariable = br_read(getObjectSize(myStaticBlock.ObjectType)); + + StaticBlocks.Add(position, myStaticBlock); + //} + Common.SendToDebug("Done reading Static Block."); + return myStaticBlock; + } + finally + { + // Go back to original read pos + fs.Seek(FirstPos, SeekOrigin.Begin); + } + } + } } \ No newline at end of file -- cgit v1.1