protected DeflateStream(Stream baseStream, ZLibCompressOptions compOpts, Format format)
{
ZLibInit.Manager.EnsureLoaded();
BaseStream = baseStream ?? throw new ArgumentNullException(nameof(baseStream));
_mode = Mode.Compress;
_disposed = false;
// Check and set compress options
_leaveOpen = compOpts.LeaveOpen;
_bufferSize = CheckBufferSize(compOpts.BufferSize);
_workBuf = new byte[_bufferSize];
int formatWindowBits = CheckFormatWindowBits(compOpts.WindowBits, _mode, format);
CheckMemLevel(compOpts.MemLevel);
// Prepare and init ZStream
switch (ZLibInit.Lib.PlatformLongSize)
{
case PlatformLongSize.Long32:
{
_zs32 = new ZStreamL32();
_zsPin = GCHandle.Alloc(_zs32, GCHandleType.Pinned);
ZLibRet ret = ZLibInit.Lib.L32.DeflateInit(_zs32, compOpts.Level, formatWindowBits, compOpts.MemLevel);
ZLibException.CheckReturnValue(ret, _zs32);
break;
}
case PlatformLongSize.Long64:
{
_zs64 = new ZStreamL64();
_zsPin = GCHandle.Alloc(_zs64, GCHandleType.Pinned);
ZLibRet ret = ZLibInit.Lib.L64.DeflateInit(_zs64, compOpts.Level, formatWindowBits, compOpts.MemLevel);
ZLibException.CheckReturnValue(ret, _zs64);
break;
}
default:
throw new PlatformNotSupportedException();
}
}
internal ZLibRet InflateInit(ZStreamL32 strm, int windowBits)
{
string zlibVer = Lib.ZLibVersion();
return(InflateInit2(strm, windowBits, zlibVer, Marshal.SizeOf <ZStreamL32>()));
}