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root/gr2lib/trunk/gr2lib/core/coreclasses/header/granny_magic.cs
Revision: 94
Committed: Sat Jul 17 05:09:42 2010 UTC (12 years, 6 months ago) by william
File size: 3570 byte(s)
Log Message:
add support for getting access to the Granny2 Header

File Contents

# Content
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using gr2lib.core.interfaces;
6 using gr2lib.core.helpers;
7 using System.Diagnostics;
8
9 namespace gr2lib.core.coreclasses.header
10 {
11 public class granny_magic : igranny_magic
12 {
13 private const int GrannyGRNMagixValueCount = 4;
14 private const int GrannyGRNReservedCount = 2;
15
16 public granny_magic()
17 {
18 this.HeaderSize = 0;
19 this.HeaderFormat = 0;
20 this.MagicValue = new int[GrannyGRNMagixValueCount];
21 this.Reserved = new int[GrannyGRNReservedCount];
22
23 for (int i = 0; i < GrannyGRNMagixValueCount; i++) { this.MagicValue[i] = 0; }
24 for (int i = 0; i < GrannyGRNReservedCount; i++) { this.Reserved[i] = 0; }
25 }
26
27 internal static granny_magic ReadFromMemory(IntPtr pointer)
28 {
29 try
30 {
31 if (pointer == IntPtr.Zero) return null;
32 gr2lib.core.coretypes.native.granny_grn_file_magic_value native = Helpers.ReadFromMemory<gr2lib.core.coretypes.native.granny_grn_file_magic_value>(pointer);
33 granny_magic managed = ReadFromNative(native);
34 managed.NativePointer = pointer;
35 return managed;
36 }
37 catch (Exception ex)
38 {
39 StackTrace st = new StackTrace(true);
40 Console.WriteLine(st.ToString() + "\n\n" + "Stack Trace: \n" + ex.ToString());
41 return default(granny_magic);
42 }
43 }
44 internal static granny_magic ReadFromNative(gr2lib.core.coretypes.native.granny_grn_file_magic_value native)
45 {
46 try
47 {
48 granny_magic managed = new granny_magic();
49 //process magic
50
51 managed.MagicValue = native.MagicValue;
52 managed.HeaderSize = native.HeaderSize;
53 managed.HeaderFormat = native.HeaderFormat;
54 managed.Reserved = native.Reserved;
55
56 return managed;
57 }
58 catch (Exception ex)
59 {
60 StackTrace st = new StackTrace(true);
61 Console.WriteLine(st.ToString() + "\n\n" + "Stack Trace: \n" + ex.ToString());
62 return default(granny_magic);
63 }
64 }
65 #region INativePointer Members
66 private IntPtr _NativePointer;
67 public IntPtr NativePointer { get { return _NativePointer; } set { _NativePointer = value; } }
68 #endregion
69
70 #region igranny_magic members
71
72 private Int32[] _MagicValue;
73 private Int32 _HeaderSize;
74 private Int32 _HeaderFormat;
75 private Int32[] _Reserved;
76
77 public Int32[] MagicValue { get { return _MagicValue; } set { if (value.Length > GrannyGRNMagixValueCount) throw new InvalidOperationException("The size of MagicValue cannot be greater than " + GrannyGRNMagixValueCount); _MagicValue = value; } } // size 4
78 public Int32 HeaderSize { get { return _HeaderSize; } set { _HeaderSize = value; } }
79 public Int32 HeaderFormat { get { return _HeaderFormat; } set { _HeaderFormat = value; } }
80 public Int32[] Reserved { get { return _Reserved; } set { if (value.Length > GrannyGRNReservedCount) throw new InvalidOperationException("The size of Reserved cannot be greater than " + GrannyGRNReservedCount); _Reserved = value; } } // size 2
81 #endregion
82 }
83 }