internal static extern bool BrotliEncoderCompress(int quality, int lgwin, BrotliEncoderMode mode, nuint input_size,
IntPtr input_buffer, ref nuint encoded_size, IntPtr encoded_buffer);
public static TransformationStatus Compress(ReadOnlySpan <byte> source, Span <byte> destination, out int bytesConsumed, out int bytesWritten, int quality = DefaultQuality, int windowSize = DefaultWindowSize, BrotliEncoderMode encMode = BrotliEncoderMode.Generic)
{
if (quality > DefaultQuality || quality <= 0)
{
throw new System.ArgumentOutOfRangeException(BrotliEx.WrongQuality);
}
if (windowSize > DefaultWindowSize || windowSize <= 0)
{
throw new System.ArgumentOutOfRangeException(BrotliEx.WrongWindowSize);
}
bytesConsumed = bytesWritten = 0;
unsafe
{
IntPtr bufIn, bufOut;
fixed(byte *inBytes = &source.DangerousGetPinnableReference())
fixed(byte *outBytes = &destination.DangerousGetPinnableReference())
{
bufIn = new IntPtr(inBytes);
bufOut = new IntPtr(outBytes);
nuint written = (nuint)destination.Length;
nuint consumed = (nuint)source.Length;
if (!BrotliNative.BrotliEncoderCompress(quality, windowSize, encMode, consumed, bufIn, ref written, bufOut))
{
return(TransformationStatus.InvalidData);
}
;
bytesConsumed = (int)consumed;
bytesWritten = (int)written;
return(TransformationStatus.Done);
}
}
}
public static bool BrotliEncoderCompress(int quality, int windowSize, BrotliEncoderMode mode, nuint inputSize,
IntPtr inputBuffer, ref nuint encodedSize, IntPtr encodedBuffer)
{
return(Interop.Brotli.BrotliEncoderCompress(quality, windowSize, mode, inputSize, inputBuffer, ref encodedSize, encodedBuffer));
}
public static TransformationStatus Compress(ReadOnlySpan <byte> source, Span <byte> destination, out int bytesConsumed, out int bytesWritten, CompressionLevel quality = (CompressionLevel)DefaultQuality, int windowSize = DefaultWindowSize, BrotliEncoderMode encMode = BrotliEncoderMode.Generic)
{
return(Compress(source, destination, out bytesConsumed, out bytesWritten, GetQualityFromCompressionLevel(quality), windowSize, encMode));
}
