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Code reformat.

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Natalia Portillo
2019-11-25 00:54:39 +00:00
parent 6937468728
commit a7d7c673a1
13 changed files with 356 additions and 392 deletions
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268
Marshal.cs
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@@ -40,36 +40,30 @@ namespace DiscImageChef.Helpers
/// <summary>Provides methods to marshal binary data into C# structs</summary>
public static class Marshal
{
/// <summary>
/// Returns the size of an unmanaged type in bytes.
/// </summary>
/// <summary>Returns the size of an unmanaged type in bytes.</summary>
/// <typeparam name="T">The type whose size is to be returned.</typeparam>
/// <returns>The size, in bytes, of the type that is specified by the <see cref="T" /> generic type parameter.</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int SizeOf<T>()
{
return System.Runtime.InteropServices.Marshal.SizeOf<T>();
}
public static int SizeOf<T>() => System.Runtime.InteropServices.Marshal.SizeOf<T>();
/// <summary>
/// Marshal little-endian binary data to a structure
/// </summary>
/// <summary>Marshal little-endian binary data to a structure</summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <typeparam name="T">Type of the structure to marshal</typeparam>
/// <returns>The binary data marshalled in a structure with the specified type</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T ByteArrayToStructureLittleEndian<T>(byte[] bytes) where T : struct
{
var ptr = GCHandle.Alloc(bytes, GCHandleType.Pinned);
GCHandle ptr = GCHandle.Alloc(bytes, GCHandleType.Pinned);
var str =
(T) System.Runtime.InteropServices.Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T));
(T)System.Runtime.InteropServices.Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T));
ptr.Free();
return str;
}
/// <summary>
/// Marshal little-endian binary data to a structure
/// </summary>
/// <summary>Marshal little-endian binary data to a structure</summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <param name="start">Start on the array where the structure begins</param>
/// <param name="length">Length of the structure in bytes</param>
@@ -79,28 +73,28 @@ namespace DiscImageChef.Helpers
public static T ByteArrayToStructureLittleEndian<T>(byte[] bytes, int start, int length) where T : struct
{
Span<byte> span = bytes;
return ByteArrayToStructureLittleEndian<T>(span.Slice(start, length).ToArray());
}
/// <summary>
/// Marshal big-endian binary data to a structure
/// </summary>
/// <summary>Marshal big-endian binary data to a structure</summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <typeparam name="T">Type of the structure to marshal</typeparam>
/// <returns>The binary data marshalled in a structure with the specified type</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T ByteArrayToStructureBigEndian<T>(byte[] bytes) where T : struct
{
var ptr = GCHandle.Alloc(bytes, GCHandleType.Pinned);
GCHandle ptr = GCHandle.Alloc(bytes, GCHandleType.Pinned);
object str =
(T) System.Runtime.InteropServices.Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T));
(T)System.Runtime.InteropServices.Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T));
ptr.Free();
return (T) SwapStructureMembersEndian(str);
return(T)SwapStructureMembersEndian(str);
}
/// <summary>
/// Marshal big-endian binary data to a structure
/// </summary>
/// <summary>Marshal big-endian binary data to a structure</summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <param name="start">Start on the array where the structure begins</param>
/// <param name="length">Length of the structure in bytes</param>
@@ -110,12 +104,11 @@ namespace DiscImageChef.Helpers
public static T ByteArrayToStructureBigEndian<T>(byte[] bytes, int start, int length) where T : struct
{
Span<byte> span = bytes;
return ByteArrayToStructureBigEndian<T>(span.Slice(start, length).ToArray());
}
/// <summary>
/// Marshal PDP-11 binary data to a structure
/// </summary>
/// <summary>Marshal PDP-11 binary data to a structure</summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <typeparam name="T">Type of the structure to marshal</typeparam>
/// <returns>The binary data marshalled in a structure with the specified type</returns>
@@ -123,17 +116,18 @@ namespace DiscImageChef.Helpers
public static T ByteArrayToStructurePdpEndian<T>(byte[] bytes) where T : struct
{
{
var ptr = GCHandle.Alloc(bytes, GCHandleType.Pinned);
GCHandle ptr = GCHandle.Alloc(bytes, GCHandleType.Pinned);
object str =
(T) System.Runtime.InteropServices.Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T));
(T)System.Runtime.InteropServices.Marshal.PtrToStructure(ptr.AddrOfPinnedObject(), typeof(T));
ptr.Free();
return (T) SwapStructureMembersEndianPdp(str);
return(T)SwapStructureMembersEndianPdp(str);
}
}
/// <summary>
/// Marshal PDP-11 binary data to a structure
/// </summary>
/// <summary>Marshal PDP-11 binary data to a structure</summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <param name="start">Start on the array where the structure begins</param>
/// <param name="length">Length of the structure in bytes</param>
@@ -143,25 +137,24 @@ namespace DiscImageChef.Helpers
public static T ByteArrayToStructurePdpEndian<T>(byte[] bytes, int start, int length) where T : struct
{
Span<byte> span = bytes;
return ByteArrayToStructurePdpEndian<T>(span.Slice(start, length).ToArray());
}
/// <summary>
/// Marshal little-endian binary data to a structure. If the structure type contains any non value type, this method
/// will crash.
/// Marshal little-endian binary data to a structure. If the structure type contains any non value type, this
/// method will crash.
/// </summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <typeparam name="T">Type of the structure to marshal</typeparam>
/// <returns>The binary data marshalled in a structure with the specified type</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T SpanToStructureLittleEndian<T>(ReadOnlySpan<byte> bytes) where T : struct
{
return MemoryMarshal.Read<T>(bytes);
}
public static T SpanToStructureLittleEndian<T>(ReadOnlySpan<byte> bytes) where T : struct =>
MemoryMarshal.Read<T>(bytes);
/// <summary>
/// Marshal little-endian binary data to a structure. If the structure type contains any non value type, this method
/// will crash.
/// Marshal little-endian binary data to a structure. If the structure type contains any non value type, this
/// method will crash.
/// </summary>
/// <param name="bytes">Byte span containing the binary data</param>
/// <param name="start">Start on the span where the structure begins</param>
@@ -170,14 +163,11 @@ namespace DiscImageChef.Helpers
/// <returns>The binary data marshalled in a structure with the specified type</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T SpanToStructureLittleEndian<T>(ReadOnlySpan<byte> bytes, int start, int length)
where T : struct
{
return MemoryMarshal.Read<T>(bytes.Slice(start, length));
}
where T : struct => MemoryMarshal.Read<T>(bytes.Slice(start, length));
/// <summary>
/// Marshal big-endian binary data to a structure. If the structure type contains any non value type, this method will
/// crash.
/// Marshal big-endian binary data to a structure. If the structure type contains any non value type, this method
/// will crash.
/// </summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <typeparam name="T">Type of the structure to marshal</typeparam>
@@ -186,12 +176,13 @@ namespace DiscImageChef.Helpers
public static T SpanToStructureBigEndian<T>(ReadOnlySpan<byte> bytes) where T : struct
{
var str = SpanToStructureLittleEndian<T>(bytes);
return (T) SwapStructureMembersEndian(str);
return(T)SwapStructureMembersEndian(str);
}
/// <summary>
/// Marshal big-endian binary data to a structure. If the structure type contains any non value type, this method will
/// crash.
/// Marshal big-endian binary data to a structure. If the structure type contains any non value type, this method
/// will crash.
/// </summary>
/// <param name="bytes">Byte span containing the binary data</param>
/// <param name="start">Start on the span where the structure begins</param>
@@ -202,7 +193,8 @@ namespace DiscImageChef.Helpers
public static T SpanToStructureBigEndian<T>(ReadOnlySpan<byte> bytes, int start, int length) where T : struct
{
var str = SpanToStructureLittleEndian<T>(bytes.Slice(start, length));
return (T) SwapStructureMembersEndian(str);
return(T)SwapStructureMembersEndian(str);
}
/// <summary>
@@ -216,7 +208,8 @@ namespace DiscImageChef.Helpers
public static T SpanToStructurePdpEndian<T>(ReadOnlySpan<byte> bytes) where T : struct
{
object str = SpanToStructureLittleEndian<T>(bytes);
return (T) SwapStructureMembersEndianPdp(str);
return(T)SwapStructureMembersEndianPdp(str);
}
/// <summary>
@@ -230,12 +223,13 @@ namespace DiscImageChef.Helpers
public static T SpanToStructurePdpEndian<T>(ReadOnlySpan<byte> bytes, int start, int length) where T : struct
{
object str = SpanToStructureLittleEndian<T>(bytes.Slice(start, length));
return (T) SwapStructureMembersEndianPdp(str);
return(T)SwapStructureMembersEndianPdp(str);
}
/// <summary>
/// Marshal a structure depending on the decoration of <see cref="MarshallingPropertiesAttribute" />. If the decoration
/// is not present it will marshal as a reference type containing little endian structure.
/// Marshal a structure depending on the decoration of <see cref="MarshallingPropertiesAttribute" />. If the
/// decoration is not present it will marshal as a reference type containing little endian structure.
/// </summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <typeparam name="T">Type of the structure to marshal</typeparam>
@@ -247,111 +241,116 @@ namespace DiscImageChef.Helpers
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T MarshalStructure<T>(byte[] bytes) where T : struct
{
if (!(typeof(T).GetCustomAttribute(typeof(MarshallingPropertiesAttribute)) is MarshallingPropertiesAttribute
properties)) return ByteArrayToStructureLittleEndian<T>(bytes);
if(!(typeof(T).GetCustomAttribute(typeof(MarshallingPropertiesAttribute)) is MarshallingPropertiesAttribute
properties))
return ByteArrayToStructureLittleEndian<T>(bytes);
switch (properties.Endian)
switch(properties.Endian)
{
case BitEndian.Little:
return properties.HasReferences
? ByteArrayToStructureLittleEndian<T>(bytes)
: SpanToStructureLittleEndian<T>(bytes);
return properties.HasReferences ? ByteArrayToStructureLittleEndian<T>(bytes)
: SpanToStructureLittleEndian<T>(bytes);
break;
case BitEndian.Big:
return properties.HasReferences
? ByteArrayToStructureBigEndian<T>(bytes)
: SpanToStructureBigEndian<T>(bytes);
return properties.HasReferences ? ByteArrayToStructureBigEndian<T>(bytes)
: SpanToStructureBigEndian<T>(bytes);
break;
case BitEndian.Pdp:
return properties.HasReferences
? ByteArrayToStructurePdpEndian<T>(bytes)
: SpanToStructurePdpEndian<T>(bytes);
return properties.HasReferences ? ByteArrayToStructurePdpEndian<T>(bytes)
: SpanToStructurePdpEndian<T>(bytes);
default: throw new ArgumentOutOfRangeException();
}
}
/// <summary>
/// Swaps all members of a structure
/// </summary>
/// <summary>Swaps all members of a structure</summary>
/// <param name="str"></param>
/// <returns></returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static object SwapStructureMembersEndian(object str)
{
var t = str.GetType();
var fieldInfo = t.GetFields();
foreach (var fi in fieldInfo)
if (fi.FieldType == typeof(short))
Type t = str.GetType();
FieldInfo[] fieldInfo = t.GetFields();
foreach(FieldInfo fi in fieldInfo)
if(fi.FieldType == typeof(short))
{
var x = (short) fi.GetValue(str);
fi.SetValue(str, (short) ((x << 8) | ((x >> 8) & 0xFF)));
short x = (short)fi.GetValue(str);
fi.SetValue(str, (short)((x << 8) | ((x >> 8) & 0xFF)));
}
else if (fi.FieldType == typeof(int))
else if(fi.FieldType == typeof(int))
{
var x = (int) fi.GetValue(str);
x = (int) (((x << 8) & 0xFF00FF00) | (((uint) x >> 8) & 0xFF00FF));
fi.SetValue(str, (int) (((uint) x << 16) | (((uint) x >> 16) & 0xFFFF)));
int x = (int)fi.GetValue(str);
x = (int)(((x << 8) & 0xFF00FF00) | (((uint)x >> 8) & 0xFF00FF));
fi.SetValue(str, (int)(((uint)x << 16) | (((uint)x >> 16) & 0xFFFF)));
}
else if (fi.FieldType == typeof(long))
else if(fi.FieldType == typeof(long))
{
var x = (long) fi.GetValue(str);
x = ((x & 0x00000000FFFFFFFF) << 32) | (long) (((ulong) x & 0xFFFFFFFF00000000) >> 32);
x = ((x & 0x0000FFFF0000FFFF) << 16) | (long) (((ulong) x & 0xFFFF0000FFFF0000) >> 16);
x = ((x & 0x00FF00FF00FF00FF) << 8) | (long) (((ulong) x & 0xFF00FF00FF00FF00) >> 8);
long x = (long)fi.GetValue(str);
x = ((x & 0x00000000FFFFFFFF) << 32) | (long)(((ulong)x & 0xFFFFFFFF00000000) >> 32);
x = ((x & 0x0000FFFF0000FFFF) << 16) | (long)(((ulong)x & 0xFFFF0000FFFF0000) >> 16);
x = ((x & 0x00FF00FF00FF00FF) << 8) | (long)(((ulong)x & 0xFF00FF00FF00FF00) >> 8);
fi.SetValue(str, x);
}
else if (fi.FieldType == typeof(ushort))
else if(fi.FieldType == typeof(ushort))
{
var x = (ushort) fi.GetValue(str);
fi.SetValue(str, (ushort) ((x << 8) | (x >> 8)));
ushort x = (ushort)fi.GetValue(str);
fi.SetValue(str, (ushort)((x << 8) | (x >> 8)));
}
else if (fi.FieldType == typeof(uint))
else if(fi.FieldType == typeof(uint))
{
var x = (uint) fi.GetValue(str);
x = ((x << 8) & 0xFF00FF00) | ((x >> 8) & 0xFF00FF);
fi.SetValue(str, (x << 16) | (x >> 16));
uint x = (uint)fi.GetValue(str);
x = ((x << 8) & 0xFF00FF00) | ((x >> 8) & 0xFF00FF);
fi.SetValue(str, (x << 16) | (x >> 16));
}
else if (fi.FieldType == typeof(ulong))
else if(fi.FieldType == typeof(ulong))
{
var x = (ulong) fi.GetValue(str);
ulong x = (ulong)fi.GetValue(str);
x = ((x & 0x00000000FFFFFFFF) << 32) | ((x & 0xFFFFFFFF00000000) >> 32);
x = ((x & 0x0000FFFF0000FFFF) << 16) | ((x & 0xFFFF0000FFFF0000) >> 16);
x = ((x & 0x00FF00FF00FF00FF) << 8) | ((x & 0xFF00FF00FF00FF00) >> 8);
x = ((x & 0x00FF00FF00FF00FF) << 8) | ((x & 0xFF00FF00FF00FF00) >> 8);
fi.SetValue(str, x);
}
else if (fi.FieldType == typeof(float))
else if(fi.FieldType == typeof(float))
{
var flt = (float) fi.GetValue(str);
var flt_b = BitConverter.GetBytes(flt);
fi.SetValue(str, BitConverter.ToSingle(new[] {flt_b[3], flt_b[2], flt_b[1], flt_b[0]}, 0));
float flt = (float)fi.GetValue(str);
byte[] flt_b = BitConverter.GetBytes(flt);
fi.SetValue(str, BitConverter.ToSingle(new[]
{
flt_b[3], flt_b[2], flt_b[1], flt_b[0]
}, 0));
}
else if (fi.FieldType == typeof(double))
else if(fi.FieldType == typeof(double))
{
var dbl = (double) fi.GetValue(str);
var dbl_b = BitConverter.GetBytes(dbl);
fi.SetValue(str,
BitConverter
.ToDouble(
new[] {dbl_b[7], dbl_b[6], dbl_b[5], dbl_b[4], dbl_b[3], dbl_b[2], dbl_b[1], dbl_b[0]},
0));
double dbl = (double)fi.GetValue(str);
byte[] dbl_b = BitConverter.GetBytes(dbl);
fi.SetValue(str, BitConverter.ToDouble(new[]
{
dbl_b[7], dbl_b[6], dbl_b[5], dbl_b[4], dbl_b[3], dbl_b[2], dbl_b[1], dbl_b[0]
}, 0));
}
else if (fi.FieldType == typeof(byte) || fi.FieldType == typeof(sbyte))
else if(fi.FieldType == typeof(byte) ||
fi.FieldType == typeof(sbyte))
{
// Do nothing, can't byteswap them!
}
else if (fi.FieldType == typeof(Guid))
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)
else if(fi.FieldType.IsValueType &&
!fi.FieldType.IsEnum &&
!fi.FieldType.IsArray)
{
var obj = fi.GetValue(str);
var strc = SwapStructureMembersEndian(obj);
object obj = fi.GetValue(str);
object strc = SwapStructureMembersEndian(obj);
fi.SetValue(str, strc);
}
@@ -361,49 +360,58 @@ namespace DiscImageChef.Helpers
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static object SwapStructureMembersEndianPdp(object str)
{
var t = str.GetType();
var fieldInfo = t.GetFields();
foreach (var fi in fieldInfo)
if (fi.FieldType == typeof(short) || fi.FieldType == typeof(long) || fi.FieldType == typeof(ushort) ||
fi.FieldType == typeof(ulong) || fi.FieldType == typeof(float) || fi.FieldType == typeof(double) ||
fi.FieldType == typeof(byte) || fi.FieldType == typeof(sbyte) || fi.FieldType == typeof(Guid))
Type t = str.GetType();
FieldInfo[] fieldInfo = t.GetFields();
foreach(FieldInfo fi in fieldInfo)
if(fi.FieldType == typeof(short) ||
fi.FieldType == typeof(long) ||
fi.FieldType == typeof(ushort) ||
fi.FieldType == typeof(ulong) ||
fi.FieldType == typeof(float) ||
fi.FieldType == typeof(double) ||
fi.FieldType == typeof(byte) ||
fi.FieldType == typeof(sbyte) ||
fi.FieldType == typeof(Guid))
{
// Do nothing
}
else if (fi.FieldType == typeof(int))
else if(fi.FieldType == typeof(int))
{
var x = (int) fi.GetValue(str);
int x = (int)fi.GetValue(str);
fi.SetValue(str, ((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
}
else if (fi.FieldType == typeof(uint))
else if(fi.FieldType == typeof(uint))
{
var x = (uint) fi.GetValue(str);
uint x = (uint)fi.GetValue(str);
fi.SetValue(str, ((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16));
}
// TODO: Swap arrays and enums
else if (fi.FieldType.IsValueType && !fi.FieldType.IsEnum && !fi.FieldType.IsArray)
else if(fi.FieldType.IsValueType &&
!fi.FieldType.IsEnum &&
!fi.FieldType.IsArray)
{
var obj = fi.GetValue(str);
var strc = SwapStructureMembersEndianPdp(obj);
object obj = fi.GetValue(str);
object strc = SwapStructureMembersEndianPdp(obj);
fi.SetValue(str, strc);
}
return str;
}
/// <summary>
/// Marshal a structure to little-endian binary data
/// </summary>
/// <summary>Marshal a structure to little-endian binary data</summary>
/// <param name="bytes">Byte array containing the binary data</param>
/// <typeparam name="T">Type of the structure to marshal</typeparam>
/// <returns>The binary data marshalled in a structure with the specified type</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static byte[] StructureToByteArrayLittleEndian<T>(T str) where T : struct
{
var buf = new byte[SizeOf<T>()];
var ptr = GCHandle.Alloc(buf, GCHandleType.Pinned);
byte[] buf = new byte[SizeOf<T>()];
GCHandle ptr = GCHandle.Alloc(buf, GCHandleType.Pinned);
System.Runtime.InteropServices.Marshal.StructureToPtr(str, ptr.AddrOfPinnedObject(), false);
ptr.Free();
return buf;
}
}