internal int Flush(int r)
{
int destinationIndex1 = this.Codec.NextOut;
int num1 = this.Read;
int num2 = (num1 <= this.Write ? this.Write : this.End) - num1;
if (num2 > this.Codec.AvailableBytesOut)
{
num2 = this.Codec.AvailableBytesOut;
}
if (num2 != 0 && r == -5)
{
r = 0;
}
this.Codec.AvailableBytesOut -= num2;
this.Codec.TotalBytesOut += (long)num2;
if (this.Checkfn != null)
{
this.Codec.Adler32 = this.Check = Adler.Adler32(this.Check, this.Window, num1, num2);
}
Array.Copy((Array)this.Window, num1, (Array)this.Codec.OutputBuffer, destinationIndex1, num2);
int destinationIndex2 = destinationIndex1 + num2;
int num3 = num1 + num2;
if (num3 == this.End)
{
int num4 = 0;
if (this.Write == this.End)
{
this.Write = 0;
}
int num5 = this.Write - num4;
if (num5 > this.Codec.AvailableBytesOut)
{
num5 = this.Codec.AvailableBytesOut;
}
if (num5 != 0 && r == -5)
{
r = 0;
}
this.Codec.AvailableBytesOut -= num5;
this.Codec.TotalBytesOut += (long)num5;
if (this.Checkfn != null)
{
this.Codec.Adler32 = this.Check = Adler.Adler32(this.Check, this.Window, num4, num5);
}
Array.Copy((Array)this.Window, num4, (Array)this.Codec.OutputBuffer, destinationIndex2, num5);
destinationIndex2 += num5;
num3 = num4 + num5;
}
this.Codec.NextOut = destinationIndex2;
this.Read = num3;
return(r);
}
internal int Flush(int r)
{
int nextOut = this._codec.NextOut;
int read = this.read;
int len = ((read <= this.write) ? this.write : this.end) - read;
if (len > this._codec.AvailableBytesOut)
{
len = this._codec.AvailableBytesOut;
}
if ((len != 0) && (r == -5))
{
r = 0;
}
this._codec.AvailableBytesOut -= len;
this._codec.TotalBytesOut += len;
if (this.checkfn != null)
{
this._codec._Adler32 = this.check = Adler.Adler32(this.check, this.window, read, len);
}
Array.Copy(this.window, read, this._codec.OutputBuffer, nextOut, len);
int destinationIndex = nextOut + len;
int num5 = read + len;
if (num5 == this.end)
{
int index = 0;
if (this.write == this.end)
{
this.write = 0;
}
int availableBytesOut = this.write - index;
if (availableBytesOut > this._codec.AvailableBytesOut)
{
availableBytesOut = this._codec.AvailableBytesOut;
}
if ((availableBytesOut != 0) && (r == -5))
{
r = 0;
}
this._codec.AvailableBytesOut -= availableBytesOut;
this._codec.TotalBytesOut += availableBytesOut;
if (this.checkfn != null)
{
this._codec._Adler32 = this.check = Adler.Adler32(this.check, this.window, index, availableBytesOut);
}
Array.Copy(this.window, index, this._codec.OutputBuffer, destinationIndex, availableBytesOut);
destinationIndex += availableBytesOut;
num5 = index + availableBytesOut;
}
this._codec.NextOut = destinationIndex;
this.read = num5;
return(r);
}
internal void Reset(long[] c)
{
if (c != null)
{
c[0] = this.check;
}
if (this.mode != 4)
{
int num1 = this.mode;
}
int mode = this.mode;
this.mode = 0;
this.bitk = 0;
this.bitb = 0;
this.read = this.write = 0;
if (this.checkfn != null)
{
this._codec._Adler32 = this.check = Adler.Adler32(0L, null, 0, 0);
}
}
internal void Reset(long[] c)
{
if (c != null)
{
c[0] = this.Check;
}
if (this.Mode != 4 && this.Mode != 5)
{
}
if (this.Mode != 6)
{
}
this.Mode = 0;
this.Bitk = 0;
this.Bitb = 0;
this.Read = this.Write = 0;
if (this.Checkfn == null)
{
return;
}
this.Codec.Adler32 = this.Check = Adler.Adler32(0L, (byte[])null, 0, 0);
}
internal void Reset(long[] c)
{
if (c != null)
{
c[0] = this.check;
}
if (this.mode != 4 && this.mode != 5)
{
}
if (this.mode != 6)
{
}
this.mode = 0;
this.bitk = 0;
this.bitb = 0;
this.read = this.write = 0;
if (this.checkfn == null)
{
return;
}
this._codec._Adler32 = this.check = Adler.Adler32(0L, (byte[])null, 0, 0);
}
internal int SetDictionary(byte[] dictionary)
{
int start = 0;
int length = dictionary.Length;
if (this.mode != 6)
{
throw new ZlibException("Stream error.");
}
if (Adler.Adler32(1L, dictionary, 0, dictionary.Length) != this._codec._Adler32)
{
return(-3);
}
this._codec._Adler32 = Adler.Adler32(0L, null, 0, 0);
if (length >= (((int)1) << this.wbits))
{
length = (((int)1) << this.wbits) - 1;
start = dictionary.Length - length;
}
this.blocks.SetDictionary(dictionary, start, length);
this.mode = 7;
return(0);
}
