public uint FastStreamManual(int blockLength, int sourceLength)
{
sourceLength = LZ4MemoryHelper.RoundUp(sourceLength, blockLength);
var targetLength = 2 * sourceLength;
var context = (LZ4Engine.StreamT *)LZ4MemoryHelper.AllocZero(sizeof(LZ4Engine.StreamT));
var source = (byte *)LZ4MemoryHelper.Alloc(sourceLength);
var target = (byte *)LZ4MemoryHelper.Alloc(targetLength);
try
{
Lorem.Fill(source, sourceLength);
var sourceP = 0;
var targetP = 0;
while (sourceP < sourceLength && targetP < targetLength)
{
targetP += LZ4Engine64.CompressFastContinue(
context,
source + sourceP,
target + targetP,
Math.Min(blockLength, sourceLength - sourceP),
targetLength - targetP,
1);
sourceP += blockLength;
}
return(Tools.Adler32(target, targetP));
}
finally
{
LZ4MemoryHelper.Free(context);
LZ4MemoryHelper.Free(source);
LZ4MemoryHelper.Free(target);
}
}
/// <see cref="UnmanagedEncodingResource.ReleaseUnmanaged()"/>
protected override void ReleaseUnmanaged()
{
base.ReleaseUnmanaged();
LZ4MemoryHelper.Free(_context);
}
/// <see cref="UnmanagedEncodingResource.ReleaseUnmanaged()"/>
protected override void ReleaseUnmanaged()
{
base.ReleaseUnmanaged();
LZ4MemoryHelper.Free(_inputBuffer);
}