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Inline methods in swapping class.

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Natalia Portillo
2019-03-12 01:00:45 +00:00
parent 5a001229c2
commit b076186e93
1 changed files with 10 additions and 0 deletions
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10
DiscImageChef.Helpers/Swapping.cs
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@@ -30,30 +30,39 @@
// Copyright © 2011-2019 Natalia Portillo
// ****************************************************************************/
using System.Runtime.CompilerServices;
namespace DiscImageChef
{
public static class Swapping
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static uint PDPFromLittleEndian(uint x) => ((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static uint PDPFromBigEndian(uint x) => ((x & 0xff00ff) << 8) | ((x & 0xff00ff00) >> 8);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ushort Swap(ushort x) => (ushort)((x << 8) | (x >> 8));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static short Swap(short x) => (short)((x << 8) | ((x >> 8) & 0xFF));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static uint Swap(uint x)
{
x = ((x << 8) & 0xFF00FF00) | ((x >> 8) & 0xFF00FF);
return (x << 16) | (x >> 16);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int Swap(int x)
{
x = (int)(((x << 8) & 0xFF00FF00) | (((uint)x >> 8) & 0xFF00FF));
return (int)(((uint)x << 16) | (((uint)x >> 16) & 0xFFFF));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ulong Swap(ulong x)
{
x = ((x & 0x00000000FFFFFFFF) << 32) | ((x & 0xFFFFFFFF00000000) >> 32);
@@ -62,6 +71,7 @@ namespace DiscImageChef
return x;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static long Swap(long x)
{
x = ((x & 0x00000000FFFFFFFF) << 32) | (long)(((ulong)x & 0xFFFFFFFF00000000) >> 32);