public static ErrorCode Compress(byte[] inputBytes,
int inputOffset,
int inputCount,
byte[] outputBytes,
int outputOffset,
ref int outputCount)
{
if (inputBytes == null)
{
throw new ArgumentNullException("inputBytes");
}
if (inputOffset < 0 || inputOffset >= inputBytes.Length)
{
throw new ArgumentOutOfRangeException("inputOffset");
}
if (inputCount <= 0 || inputOffset + inputCount > inputBytes.Length)
{
throw new ArgumentOutOfRangeException("inputCount");
}
if (outputBytes == null)
{
throw new ArgumentNullException("outputBytes");
}
if (outputOffset < 0 || outputOffset >= outputBytes.Length)
{
throw new ArgumentOutOfRangeException("outputOffset");
}
if (outputCount <= 0 || outputOffset + outputCount > outputBytes.Length)
{
throw new ArgumentOutOfRangeException("outputCount");
}
var outputHandle = GCHandle.Alloc(outputBytes, GCHandleType.Pinned);
var inputHandle = GCHandle.Alloc(inputBytes, GCHandleType.Pinned);
ErrorCode result;
lock (_CompressWork)
{
if (_Is64Bit == true)
{
long dummy = outputCount;
result = (ErrorCode)Native64.NativeCompress(inputHandle.AddrOfPinnedObject() + inputOffset,
inputCount,
outputHandle.AddrOfPinnedObject() + outputOffset,
ref dummy,
_CompressWork);
if (dummy < 0 || dummy > outputCount)
{
throw new InvalidOperationException("strange output count");
}
outputCount = (int)dummy;
}
else
{
result = (ErrorCode)Native32.NativeCompress(inputHandle.AddrOfPinnedObject() + inputOffset,
inputCount,
outputHandle.AddrOfPinnedObject() + outputOffset,
ref outputCount,
_CompressWork);
}
}
return(result);
}
