public uint FastStreamManual(int blockLength, int sourceLength)
{
sourceLength = Mem.RoundUp(sourceLength, blockLength);
var targetLength = 2 * sourceLength;
var context = (LZ4_xx.LZ4_stream_t *)Mem.AllocZero(sizeof(LZ4_xx.LZ4_stream_t));
var source = (byte *)Mem.Alloc(sourceLength);
var target = (byte *)Mem.Alloc(targetLength);
try
{
Lorem.Fill(source, sourceLength);
var sourceP = 0;
var targetP = 0;
while (sourceP < sourceLength && targetP < targetLength)
{
targetP += LZ4_64.LZ4_compress_fast_continue(
context,
source + sourceP,
target + targetP,
Math.Min(blockLength, sourceLength - sourceP),
targetLength - targetP,
1);
sourceP += blockLength;
}
return(Tools.Adler32(target, targetP));
}
finally
{
Mem.Free(context);
Mem.Free(source);
Mem.Free(target);
}
}
protected override int EncodeBlock(
byte *source, int sourceLength, byte *target, int targetLength) =>
LZ4_64.LZ4_compress_fast_continue(
_context, source, target, sourceLength, targetLength, 1);
