// Token: 0x06000346 RID: 838 RVA: 0x0002C80C File Offset: 0x0002AA0C
public int GetSymbol(ChromV266351.SimpleZip.StreamManipulator streamManipulator_0)
{
int num;
if ((num = streamManipulator_0.PeekBits(9)) >= 0)
{
int num2;
if ((num2 = (int)this.tree[num]) >= 0)
{
streamManipulator_0.DropBits(num2 & 15);
return(num2 >> 4);
}
int num3 = -(num2 >> 4);
int int_ = num2 & 15;
if ((num = streamManipulator_0.PeekBits(int_)) >= 0)
{
num2 = (int)this.tree[num3 | num >> 9];
streamManipulator_0.DropBits(num2 & 15);
return(num2 >> 4);
}
int availableBits = streamManipulator_0.AvailableBits;
num = streamManipulator_0.PeekBits(availableBits);
num2 = (int)this.tree[num3 | num >> 9];
if ((num2 & 15) <= availableBits)
{
streamManipulator_0.DropBits(num2 & 15);
return(num2 >> 4);
}
return(-1);
}
else
{
int availableBits2 = streamManipulator_0.AvailableBits;
num = streamManipulator_0.PeekBits(availableBits2);
int num2 = (int)this.tree[num];
if (num2 >= 0 && (num2 & 15) <= availableBits2)
{
streamManipulator_0.DropBits(num2 & 15);
return(num2 >> 4);
}
return(-1);
}
}
// Token: 0x0600033E RID: 830 RVA: 0x0002C458 File Offset: 0x0002A658
public int CopyStored(ChromV266351.SimpleZip.StreamManipulator streamManipulator_0, int int_0)
{
int_0 = Math.Min(Math.Min(int_0, 32768 - this.windowFilled), streamManipulator_0.AvailableBytes);
int num = 32768 - this.windowEnd;
int num2;
if (int_0 > num)
{
num2 = streamManipulator_0.CopyBytes(this.window, this.windowEnd, num);
if (num2 == num)
{
num2 += streamManipulator_0.CopyBytes(this.window, 0, int_0 - num);
}
}
else
{
num2 = streamManipulator_0.CopyBytes(this.window, this.windowEnd, int_0);
}
this.windowEnd = (this.windowEnd + num2 & 32767);
this.windowFilled += num2;
return(num2);
}
// Token: 0x06000348 RID: 840 RVA: 0x0002C8E4 File Offset: 0x0002AAE4
public bool Decode(ChromV266351.SimpleZip.StreamManipulator streamManipulator_0)
{
for (;;)
{
switch (this.mode)
{
case 0:
this.lnum = streamManipulator_0.PeekBits(5);
if (this.lnum >= 0)
{
this.lnum += 257;
streamManipulator_0.DropBits(5);
this.mode = 1;
goto IL_1E0;
}
return(false);
case 1:
goto IL_1E0;
case 2:
goto IL_192;
case 3:
goto IL_159;
case 4:
break;
case 5:
goto IL_2A;
default:
continue;
}
IL_E4:
int symbol;
while (((symbol = this.blTree.GetSymbol(streamManipulator_0)) & -16) == 0)
{
byte[] array = this.litdistLens;
int num = this.ptr;
this.ptr = num + 1;
array[num] = (this.lastLen = (byte)symbol);
if (this.ptr == this.num)
{
return(true);
}
}
if (symbol >= 0)
{
if (symbol >= 17)
{
this.lastLen = 0;
}
this.repSymbol = symbol - 16;
this.mode = 5;
goto IL_2A;
}
return(false);
IL_159:
while (this.ptr < this.blnum)
{
int num2 = streamManipulator_0.PeekBits(3);
if (num2 < 0)
{
return(false);
}
streamManipulator_0.DropBits(3);
this.blLens[ChromV266351.SimpleZip.InflaterDynHeader.BL_ORDER[this.ptr]] = (byte)num2;
this.ptr++;
}
this.blTree = new ChromV266351.SimpleZip.InflaterHuffmanTree(this.blLens);
this.blLens = null;
this.ptr = 0;
this.mode = 4;
goto IL_E4;
IL_2A:
int int_ = ChromV266351.SimpleZip.InflaterDynHeader.repBits[this.repSymbol];
int num3 = streamManipulator_0.PeekBits(int_);
if (num3 < 0)
{
return(false);
}
streamManipulator_0.DropBits(int_);
num3 += ChromV266351.SimpleZip.InflaterDynHeader.repMin[this.repSymbol];
while (num3-- > 0)
{
byte[] array2 = this.litdistLens;
int num = this.ptr;
this.ptr = num + 1;
array2[num] = this.lastLen;
}
if (this.ptr == this.num)
{
break;
}
this.mode = 4;
continue;
IL_192:
this.blnum = streamManipulator_0.PeekBits(4);
if (this.blnum >= 0)
{
this.blnum += 4;
streamManipulator_0.DropBits(4);
this.blLens = new byte[19];
this.ptr = 0;
this.mode = 3;
goto IL_159;
}
return(false);
IL_1E0:
this.dnum = streamManipulator_0.PeekBits(5);
if (this.dnum >= 0)
{
this.dnum++;
streamManipulator_0.DropBits(5);
this.num = this.lnum + this.dnum;
this.litdistLens = new byte[this.num];
this.mode = 2;
goto IL_192;
}
return(false);
}
return(true);
}
