Compress() [3/3]

unsafe OperationStatus System.IO.Compression.BrotliEncoder.Compress ( ReadOnlySpan< byte > source, Span< byte > destination, out int bytesConsumed, out int bytesWritten, BrotliEncoderOperation operation )

inlinepackage

Definition at line 130 of file BrotliEncoder.cs.

    {
        EnsureInitialized();
        bytesWritten = 0;
        bytesConsumed = 0;
        nuint availableOut = (nuint)destination.Length;
        nuint availableIn = (nuint)source.Length;
        while ((int)availableOut > 0)
        {
            fixed (byte* ptr = &MemoryMarshal.GetReference(source))
            {
                byte* ptr2 = ptr;
                fixed (byte* ptr3 = &MemoryMarshal.GetReference(destination))
                {
                    byte* ptr4 = ptr3;
                    if (global::Interop.Brotli.BrotliEncoderCompressStream(_state, operation, ref availableIn, &ptr2, ref availableOut, &ptr4, out UIntPtr _) == global::Interop.BOOL.FALSE)
                    {
                        return OperationStatus.InvalidData;
                    }
                    bytesConsumed += source.Length - (int)availableIn;
                    bytesWritten += destination.Length - (int)availableOut;
                    if ((int)availableOut == destination.Length && global::Interop.Brotli.BrotliEncoderHasMoreOutput(_state) == global::Interop.BOOL.FALSE && availableIn == 0)
                    {
                        return OperationStatus.Done;
                    }
                    source = source.Slice(source.Length - (int)availableIn);
                    destination = destination.Slice(destination.Length - (int)availableOut);
                }
            }
        }
        return OperationStatus.DestinationTooSmall;
    }

References System.IO.Compression.BrotliEncoder._state, System.destination, System.IO.Compression.BrotliEncoder.EnsureInitialized(), and System.source.