} // end function Clone
public unsafe void Read(ref byte[] a_Destination, UInt64 a_DestinationOffset, UInt64 a_OutputLength)
{
UInt64 LRemainder, LBlockOffset, LDiff;
Int32 LCount;
UInt32[] LWords = new UInt32[16];
if (Offset == MaxDigestLengthInBytes)
{
throw new ArgumentOutOfRangeHashLibException(MaximumOutputLengthExceeded);
}
else
{
LRemainder = MaxDigestLengthInBytes - Offset;
if (a_OutputLength > LRemainder)
{
a_OutputLength = LRemainder;
}
} // end else
fixed(UInt32 *LPtrCardinal = LWords)
{
fixed(byte *LPtrByte = Block)
{
while (a_OutputLength > 0)
{
if ((Offset & (BlockSizeInBytes - 1)) == 0)
{
N.Counter = Offset / (UInt64)BlockSizeInBytes;
N.Compress(ref LWords);
Converters.le32_copy((IntPtr)LPtrCardinal, 0, (IntPtr)LPtrByte, 0, BlockSizeInBytes);
}
LBlockOffset = Offset & (BlockSizeInBytes - 1);
LDiff = (UInt64)Block.Length - LBlockOffset;
LCount = (Int32)Math.Min(a_OutputLength, LDiff);
Utils.Utils.Memmove(ref a_Destination, Block, LCount, (Int32)LBlockOffset, (Int32)a_DestinationOffset);
a_OutputLength -= (UInt64)LCount;
a_DestinationOffset += (UInt64)LCount;
Offset += (UInt64)LCount;
}
}
}
} // end function Read
public unsafe void Read(byte[] dest, ulong destOffset, ulong outputLength)
{
var words = new uint[16];
if (Offset == MaxDigestLengthInBytes)
{
throw new ArgumentException(MaximumOutputLengthExceeded);
}
var remainder = MaxDigestLengthInBytes - Offset;
outputLength = Math.Min(outputLength, remainder);
fixed(uint *wordsPtr = words)
{
fixed(byte *blockPtr = _block, destPtr = dest)
{
while (outputLength > 0)
{
if ((Offset & (BlockSizeInBytes - 1)) == 0)
{
N.Counter = Offset / BlockSizeInBytes;
N.Compress(wordsPtr);
Converters.le32_copy(wordsPtr, 0, blockPtr, 0, BlockSizeInBytes);
}
var blockOffset = Offset & (BlockSizeInBytes - 1);
var diff = (ulong)_block.Length - blockOffset;
var count = (int)Math.Min(outputLength, diff);
PointerUtils.MemMove(destPtr + destOffset, blockPtr + blockOffset, count);
outputLength -= (ulong)count;
destOffset += (ulong)count;
Offset += (ulong)count;
}
}
}
}