protected virtual void FlushEncoder(Boolean finished)
{
if (_encoder.State == IntPtr.Zero)
{
return;
}
if (BrotliNative.BrotliEncoderIsFinished(_encoder.State))
{
return;
}
BrotliNative.BrotliEncoderOperation op = finished ? BrotliNative.BrotliEncoderOperation.Finish : BrotliNative.BrotliEncoderOperation.Flush;
UInt32 totalOut = 0;
while (true)
{
var compressOK = BrotliNative.BrotliEncoderCompressStream(_encoder.State, op, ref AvailIn, ref NextIn, ref AvailOut, ref NextOut, out totalOut);
if (!compressOK)
{
throw new Exception(); // unable encode
}
var extraData = (nuint)AvailOut != BufferSize;
if (extraData)
{
var bytesWrote = (int)(BufferSize - (nuint)AvailOut);
Byte[] buf = new Byte[bytesWrote];
Marshal.Copy(BufferOut, buf, 0, bytesWrote);
_stream.Write(buf, 0, bytesWrote);
AvailOut = (IntPtr)BufferSize;
NextOut = BufferOut;
}
if (BrotliNative.BrotliEncoderIsFinished(_encoder.State))
{
break;
}
if (!extraData)
{
break;
}
}
}
internal static extern bool BrotliEncoderCompressStream(
IntPtr state, BrotliNative.BrotliEncoderOperation op, ref nuint availableIn,
ref IntPtr nextIn, ref nuint availableOut, ref IntPtr nextOut, out nuint totalOut);