private unsafe bool FindMatch(out long matchOffset, out long matchLength)
{
matchOffset = 0L;
matchLength = 0L;
uint num1 = Class955.smethod_0(this.pByte_2);
int num2;
for (num2 = 0; num2 < 4; ++num2)
{
byte *matchPtr = this.pByte_0[(long)num1 + (long)num2];
if ((IntPtr)matchPtr == IntPtr.Zero || this.IsMatch(matchPtr, ref matchOffset, ref matchLength))
{
break;
}
}
if (matchLength == 0L && num2 < 4)
{
this.pByte_0[(long)num1 + (long)num2] = this.pByte_2;
}
else
{
this.pByte_0[(IntPtr)(num1 + 3U)] = this.pByte_0[(IntPtr)(num1 + 2U)];
this.pByte_0[(IntPtr)(num1 + 2U)] = this.pByte_0[(IntPtr)(num1 + 1U)];
this.pByte_0[(IntPtr)(num1 + 1U)] = this.pByte_0[(IntPtr)num1];
this.pByte_0[(IntPtr)num1] = this.pByte_2;
}
return(matchLength != 0L);
}
public unsafe void method_1(byte[] sourceData, int index, int length, Stream targetStream)
{
this.byte_0 = sourceData;
this.stream_0 = targetStream;
this.bool_0 = true;
fixed(byte *numPtr = sourceData)
{
this.pByte_1 = numPtr + index;
this.pByte_3 = this.pByte_1 + length;
this.pByte_2 = this.pByte_1;
this.pByte_0[(IntPtr)Class955.smethod_0(this.pByte_2)] = this.pByte_2;
uint num1 = 1;
++this.pByte_2;
while (this.pByte_2 <= this.pByte_3 - 3)
{
long matchOffset;
long matchLength;
if (!this.FindMatch(out matchOffset, out matchLength))
{
++this.pByte_2;
++num1;
}
else
{
if (num1 > 0U)
{
this.method_2(num1);
this.method_4(this.pByte_2 - (int)num1, num1);
}
this.method_3((uint)matchOffset, (uint)matchLength, num1);
this.pByte_2 += matchLength;
num1 = 0U;
}
}
uint num2 = num1 + (uint)(this.pByte_3 - this.pByte_2);
if (num2 > 0U)
{
this.method_2(num2);
this.method_4(this.pByte_3 - (int)num2, num2);
}
this.method_38();
}
}