static unsafe void Test2()
{
var cctx = ExternMethods.ZSTD_createCCtx();
var dctx = ExternMethods.ZSTD_createDCtx();
var src = File.ReadAllBytes("dickens");
var dest = new byte[ExternMethods.ZSTD_compressBound((nuint)src.Length)];
var uncompressed = new byte[src.Length];
fixed(byte *dstPtr = dest)
fixed(byte *srcPtr = src)
fixed(byte *uncompressedPtr = uncompressed)
{
var compressedLength = ExternMethods.ZSTD_compressCCtx(cctx, (IntPtr)dstPtr, (nuint)dest.Length, (IntPtr)srcPtr, (nuint)src.Length,
level);
var decompressedLength = ExternMethods.ZSTD_decompressDCtx(dctx, (IntPtr)uncompressedPtr, (nuint)uncompressed.Length, (IntPtr)dstPtr, compressedLength);
Console.WriteLine($"{compressedLength} {decompressedLength} {src.Length}");
}
ExternMethods.ZSTD_freeCCtx(cctx);
ExternMethods.ZSTD_freeDCtx(dctx);
}
public void CompressAndDecompressWithNative(int level)
{
var srcBuffer = File.ReadAllBytes("dickens");
var compressBound = Compressor.GetCompressBound(srcBuffer.Length);
Assert.Equal((int)ExternMethods.ZSTD_compressBound((nuint)srcBuffer.Length), compressBound);
var compressor = new Compressor(level);
var compressedSharp = compressor.Wrap(srcBuffer);
var compressedNative = CompressNative(srcBuffer, compressBound, level);
Assert.True(compressedNative.SequenceEqual(compressedSharp));
var decompressBound = (int)Decompressor.GetDecompressedSize(compressedSharp);
Assert.Equal(decompressBound, srcBuffer.Length);
var decompressor = new Decompressor();
var decompressedSharp = decompressor.Unwrap(compressedSharp);
var decompressedNative = DecompressNative(compressedNative, decompressBound);
Assert.True(decompressedSharp.SequenceEqual(decompressedNative));
}