// Token: 0x060007AC RID: 1964 RVA: 0x00034868 File Offset: 0x00032A68
public int Inflate(Class_201 flush)
{
if (this.istate == null)
{
throw new Class_205("No Inflate State!");
}
return(this.istate.Inflate(flush));
}
// Token: 0x060007B5 RID: 1973 RVA: 0x00034998 File Offset: 0x00032B98
public int Deflate(Class_201 flush)
{
if (this.dstate == null)
{
throw new Class_205("No Deflate State!");
}
return(this.dstate.Deflate(flush));
}
// Token: 0x06000747 RID: 1863 RVA: 0x000314B4 File Offset: 0x0002F6B4
internal int Inflate(Class_201 flush)
{
if (this._codec.InputBuffer == null)
{
throw new Class_205("InputBuffer is null. ");
}
int num = 0;
int num2 = -5;
for (;;)
{
switch (this.mode)
{
case Class_196.InflateManagerMode.METHOD:
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
num2 = num;
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
if (((this.method = (int)this._codec.InputBuffer[this._codec.NextIn++]) & 15) != 8)
{
this.mode = Class_196.InflateManagerMode.BAD;
this._codec.Message = string.Format("unknown compression method (0x{0:X2})", this.method);
this.marker = 5;
continue;
}
if ((this.method >> 4) + 8 > this.wbits)
{
this.mode = Class_196.InflateManagerMode.BAD;
this._codec.Message = string.Format("invalid window size ({0})", (this.method >> 4) + 8);
this.marker = 5;
continue;
}
this.mode = Class_196.InflateManagerMode.FLAG;
continue;
case Class_196.InflateManagerMode.FLAG:
{
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
num2 = num;
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
int num3 = (int)(this._codec.InputBuffer[this._codec.NextIn++] & byte.MaxValue);
if (((this.method << 8) + num3) % 31 != 0)
{
this.mode = Class_196.InflateManagerMode.BAD;
this._codec.Message = "incorrect header check";
this.marker = 5;
continue;
}
this.mode = (((num3 & 32) == 0) ? Class_196.InflateManagerMode.BLOCKS : Class_196.InflateManagerMode.DICT4);
continue;
}
case Class_196.InflateManagerMode.DICT4:
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
num2 = num;
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
this.expectedCheck = (uint)((long)((long)this._codec.InputBuffer[this._codec.NextIn++] << 24) & (long)((ulong)-16777216));
this.mode = Class_196.InflateManagerMode.DICT3;
continue;
case Class_196.InflateManagerMode.DICT3:
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
num2 = num;
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
this.expectedCheck += (uint)((int)this._codec.InputBuffer[this._codec.NextIn++] << 16 & 16711680);
this.mode = Class_196.InflateManagerMode.DICT2;
continue;
case Class_196.InflateManagerMode.DICT2:
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
num2 = num;
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
this.expectedCheck += (uint)((int)this._codec.InputBuffer[this._codec.NextIn++] << 8 & 65280);
this.mode = Class_196.InflateManagerMode.DICT1;
continue;
case Class_196.InflateManagerMode.DICT1:
goto IL_3A0;
case Class_196.InflateManagerMode.DICT0:
goto IL_42C;
case Class_196.InflateManagerMode.BLOCKS:
num2 = this.blocks.Process(num2);
if (num2 == -3)
{
this.mode = Class_196.InflateManagerMode.BAD;
this.marker = 0;
continue;
}
if (num2 == 0)
{
num2 = num;
}
if (num2 != 1)
{
return(num2);
}
num2 = num;
this.computedCheck = this.blocks.Reset();
if (!this.HandleRfc1950HeaderBytes)
{
goto Block_16;
}
this.mode = Class_196.InflateManagerMode.CHECK4;
continue;
case Class_196.InflateManagerMode.CHECK4:
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
num2 = num;
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
this.expectedCheck = (uint)((long)((long)this._codec.InputBuffer[this._codec.NextIn++] << 24) & (long)((ulong)-16777216));
this.mode = Class_196.InflateManagerMode.CHECK3;
continue;
case Class_196.InflateManagerMode.CHECK3:
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
num2 = num;
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
this.expectedCheck += (uint)((int)this._codec.InputBuffer[this._codec.NextIn++] << 16 & 16711680);
this.mode = Class_196.InflateManagerMode.CHECK2;
continue;
case Class_196.InflateManagerMode.CHECK2:
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
num2 = num;
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
this.expectedCheck += (uint)((int)this._codec.InputBuffer[this._codec.NextIn++] << 8 & 65280);
this.mode = Class_196.InflateManagerMode.CHECK1;
continue;
case Class_196.InflateManagerMode.CHECK1:
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
num2 = num;
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
this.expectedCheck += (uint)(this._codec.InputBuffer[this._codec.NextIn++] & byte.MaxValue);
if (this.computedCheck != this.expectedCheck)
{
this.mode = Class_196.InflateManagerMode.BAD;
this._codec.Message = "incorrect data check";
this.marker = 5;
continue;
}
goto IL_6E4;
case Class_196.InflateManagerMode.DONE:
return(1);
case Class_196.InflateManagerMode.BAD:
goto IL_6F0;
}
break;
}
throw new Class_205("Stream error.");
IL_3A0:
if (this._codec.AvailableBytesIn == 0)
{
return(num2);
}
this._codec.AvailableBytesIn--;
this._codec.TotalBytesIn += 1L;
this.expectedCheck += (uint)(this._codec.InputBuffer[this._codec.NextIn++] & byte.MaxValue);
this._codec._Adler32 = this.expectedCheck;
this.mode = Class_196.InflateManagerMode.DICT0;
return(2);
IL_42C:
this.mode = Class_196.InflateManagerMode.BAD;
this._codec.Message = "need dictionary";
this.marker = 0;
return(-2);
Block_16:
this.mode = Class_196.InflateManagerMode.DONE;
return(1);
IL_6E4:
this.mode = Class_196.InflateManagerMode.DONE;
return(1);
IL_6F0:
throw new Class_205(string.Format("Bad state ({0})", this._codec.Message));
}
