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Add recursiveness to BigEndianMarshal thanks to @darkstar suggestions.

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Natalia Portillo
2018-03-08 20:00:01 +00:00
parent abec952daa
commit b21b7f0a0f
1 changed files with 36 additions and 21 deletions
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57
BigEndianMarshal.cs
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@@ -49,9 +49,9 @@ namespace DiscImageChef
public static T ByteArrayToStructureBigEndian<T>(byte[] bytes) where T : struct public static T ByteArrayToStructureBigEndian<T>(byte[] bytes) where T : struct
{ {
GCHandle ptr = GCHandle.Alloc(bytes, GCHandleType.Pinned); GCHandle ptr = GCHandle.Alloc(bytes, GCHandleType.Pinned);
T str = (T)Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T)); T str = (T)Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T));
ptr.Free(); ptr.Free();
return SwapStructureMembersEndian(str); return (T)SwapStructureMembersEndian(str);
} }
/// <summary> /// <summary>
@@ -60,67 +60,82 @@ namespace DiscImageChef
/// </summary> /// </summary>
/// <returns>The structure with its members endian swapped.</returns> /// <returns>The structure with its members endian swapped.</returns>
/// <param name="str">The structure.</param> /// <param name="str">The structure.</param>
/// <typeparam name="T">Structure type.</typeparam> public static object SwapStructureMembersEndian(object str)
public static T SwapStructureMembersEndian<T>(T str) where T : struct
{ {
Type t = str.GetType(); Type t = str.GetType();
FieldInfo[] fieldInfo = t.GetFields(); FieldInfo[] fieldInfo = t.GetFields();
foreach(FieldInfo fi in fieldInfo) foreach(FieldInfo fi in fieldInfo)
if(fi.FieldType == typeof(short)) if(fi.FieldType == typeof(short))
{ {
short int16 = (short)fi.GetValue(str); short int16 = (short)fi.GetValue(str);
byte[] int16_b = BitConverter.GetBytes(int16); byte[] int16_b = BitConverter.GetBytes(int16);
byte[] int16_r = int16_b.Reverse().ToArray(); byte[] int16_r = int16_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToInt16(int16_r, 0)); fi.SetValue(str, BitConverter.ToInt16(int16_r, 0));
} }
else if(fi.FieldType == typeof(int)) else if(fi.FieldType == typeof(int))
{ {
int int32 = (int)fi.GetValue(str); int int32 = (int)fi.GetValue(str);
byte[] int32_b = BitConverter.GetBytes(int32); byte[] int32_b = BitConverter.GetBytes(int32);
byte[] int32_r = int32_b.Reverse().ToArray(); byte[] int32_r = int32_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToInt32(int32_r, 0)); fi.SetValue(str, BitConverter.ToInt32(int32_r, 0));
} }
else if(fi.FieldType == typeof(long)) else if(fi.FieldType == typeof(long))
{ {
long int64 = (long)fi.GetValue(str); long int64 = (long)fi.GetValue(str);
byte[] int64_b = BitConverter.GetBytes(int64); byte[] int64_b = BitConverter.GetBytes(int64);
byte[] int64_r = int64_b.Reverse().ToArray(); byte[] int64_r = int64_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToInt64(int64_r, 0)); fi.SetValue(str, BitConverter.ToInt64(int64_r, 0));
} }
else if(fi.FieldType == typeof(ushort)) else if(fi.FieldType == typeof(ushort))
{ {
ushort uint16 = (ushort)fi.GetValue(str); ushort uint16 = (ushort)fi.GetValue(str);
byte[] uint16_b = BitConverter.GetBytes(uint16); byte[] uint16_b = BitConverter.GetBytes(uint16);
byte[] uint16_r = uint16_b.Reverse().ToArray(); byte[] uint16_r = uint16_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToUInt16(uint16_r, 0)); fi.SetValue(str, BitConverter.ToUInt16(uint16_r, 0));
} }
else if(fi.FieldType == typeof(uint)) else if(fi.FieldType == typeof(uint))
{ {
uint uint32 = (uint)fi.GetValue(str); uint uint32 = (uint)fi.GetValue(str);
byte[] uint32_b = BitConverter.GetBytes(uint32); byte[] uint32_b = BitConverter.GetBytes(uint32);
byte[] uint32_r = uint32_b.Reverse().ToArray(); byte[] uint32_r = uint32_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToUInt32(uint32_r, 0)); fi.SetValue(str, BitConverter.ToUInt32(uint32_r, 0));
} }
else if(fi.FieldType == typeof(ulong)) else if(fi.FieldType == typeof(ulong))
{ {
ulong uint64 = (ulong)fi.GetValue(str); ulong uint64 = (ulong)fi.GetValue(str);
byte[] uint64_b = BitConverter.GetBytes(uint64); byte[] uint64_b = BitConverter.GetBytes(uint64);
byte[] uint64_r = uint64_b.Reverse().ToArray(); byte[] uint64_r = uint64_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToUInt64(uint64_r, 0)); fi.SetValue(str, BitConverter.ToUInt64(uint64_r, 0));
} }
else if(fi.FieldType == typeof(float)) else if(fi.FieldType == typeof(float))
{ {
float flt = (float)fi.GetValue(str); float flt = (float)fi.GetValue(str);
byte[] flt_b = BitConverter.GetBytes(flt); byte[] flt_b = BitConverter.GetBytes(flt);
byte[] flt_r = flt_b.Reverse().ToArray(); byte[] flt_r = flt_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToSingle(flt_r, 0)); fi.SetValue(str, BitConverter.ToSingle(flt_r, 0));
} }
else if(fi.FieldType == typeof(double)) else if(fi.FieldType == typeof(double))
{ {
double dbl = (double)fi.GetValue(str); double dbl = (double)fi.GetValue(str);
byte[] dbl_b = BitConverter.GetBytes(dbl); byte[] dbl_b = BitConverter.GetBytes(dbl);
byte[] dbl_r = dbl_b.Reverse().ToArray(); byte[] dbl_r = dbl_b.Reverse().ToArray();
fi.SetValueDirect(__makeref(str), BitConverter.ToDouble(dbl_r, 0)); fi.SetValue(str, BitConverter.ToDouble(dbl_r, 0));
}
else if(fi.FieldType == typeof(byte) || fi.FieldType == typeof(sbyte))
{
// Do nothing, can't byteswap them!
}
else if(fi.FieldType == typeof(Guid))
{
// TODO: Swap GUID
}
// TODO: Swap arrays and enums
else if(fi.FieldType.IsValueType && !fi.FieldType.IsEnum && !fi.FieldType.IsArray)
{
object obj = fi.GetValue(str);
Type ty = obj.GetType();
object strc = SwapStructureMembersEndian(obj);
fi.SetValue(str, strc);
} }
return str; return str;