// Token: 0x060016E2 RID: 5858 RVA: 0x000769A0 File Offset: 0x00074BA0
public int GetSymbol(ChromV265450.SimpleZip.StreamManipulator A_1)
{
int num;
if ((num = A_1.PeekBits(9)) >= 0)
{
int num2;
if ((num2 = (int)this.tree[num]) >= 0)
{
A_1.DropBits(num2 & 15);
return(num2 >> 4);
}
int num3 = -(num2 >> 4);
int num4 = num2 & 15;
if ((num = A_1.PeekBits(num4)) >= 0)
{
num2 = (int)this.tree[num3 | num >> 9];
A_1.DropBits(num2 & 15);
return(num2 >> 4);
}
int availableBits = A_1.get_AvailableBits();
num = A_1.PeekBits(availableBits);
num2 = (int)this.tree[num3 | num >> 9];
if ((num2 & 15) <= availableBits)
{
A_1.DropBits(num2 & 15);
return(num2 >> 4);
}
return(-1);
}
else
{
int availableBits2 = A_1.get_AvailableBits();
num = A_1.PeekBits(availableBits2);
int num2 = (int)this.tree[num];
if (num2 >= 0 && (num2 & 15) <= availableBits2)
{
A_1.DropBits(num2 & 15);
return(num2 >> 4);
}
return(-1);
}
}
// Token: 0x060016DA RID: 5850 RVA: 0x00076560 File Offset: 0x00074760
public int CopyStored(ChromV265450.SimpleZip.StreamManipulator A_1, int A_2)
{
A_2 = Math.Min(Math.Min(A_2, 32768 - this.windowFilled), A_1.get_AvailableBytes());
int num = 32768 - this.windowEnd;
int num2;
if (A_2 > num)
{
num2 = A_1.CopyBytes(this.window, this.windowEnd, num);
if (num2 == num)
{
num2 += A_1.CopyBytes(this.window, 0, A_2 - num);
}
}
else
{
num2 = A_1.CopyBytes(this.window, this.windowEnd, A_2);
}
this.windowEnd = (this.windowEnd + num2 & 32767);
this.windowFilled += num2;
return(num2);
}
// Token: 0x060016E4 RID: 5860 RVA: 0x00076A94 File Offset: 0x00074C94
public bool Decode(ChromV265450.SimpleZip.StreamManipulator A_1)
{
for (;;)
{
switch (this.mode)
{
case 0:
this.lnum = A_1.PeekBits(5);
if (this.lnum < 0)
{
return(false);
}
this.lnum += 257;
A_1.DropBits(5);
this.mode = 1;
goto IL_62;
case 1:
goto IL_62;
case 2:
goto IL_BD;
case 3:
break;
case 4:
goto IL_1B9;
case 5:
goto IL_1F5;
default:
continue;
}
IL_148:
while (this.ptr < this.blnum)
{
int num = A_1.PeekBits(3);
if (num < 0)
{
return(false);
}
A_1.DropBits(3);
this.blLens[ChromV265450.SimpleZip.InflaterDynHeader.BL_ORDER[this.ptr]] = (byte)num;
this.ptr++;
}
this.blTree = new ChromV265450.SimpleZip.InflaterHuffmanTree(this.blLens);
this.blLens = null;
this.ptr = 0;
this.mode = 4;
IL_1B9:
int symbol;
while (((symbol = this.blTree.GetSymbol(A_1)) & -16) == 0)
{
byte[] array = this.litdistLens;
int num2 = this.ptr;
this.ptr = num2 + 1;
array[num2] = (this.lastLen = (byte)symbol);
if (this.ptr == this.num)
{
return(true);
}
}
if (symbol < 0)
{
return(false);
}
if (symbol >= 17)
{
this.lastLen = 0;
}
this.repSymbol = symbol - 16;
this.mode = 5;
IL_1F5:
int num3 = ChromV265450.SimpleZip.InflaterDynHeader.repBits[this.repSymbol];
int num4 = A_1.PeekBits(num3);
if (num4 < 0)
{
return(false);
}
A_1.DropBits(num3);
num4 += ChromV265450.SimpleZip.InflaterDynHeader.repMin[this.repSymbol];
while (num4-- > 0)
{
byte[] array2 = this.litdistLens;
int num2 = this.ptr;
this.ptr = num2 + 1;
array2[num2] = this.lastLen;
}
if (this.ptr == this.num)
{
return(true);
}
this.mode = 4;
continue;
IL_BD:
this.blnum = A_1.PeekBits(4);
if (this.blnum < 0)
{
return(false);
}
this.blnum += 4;
A_1.DropBits(4);
this.blLens = new byte[19];
this.ptr = 0;
this.mode = 3;
goto IL_148;
IL_62:
this.dnum = A_1.PeekBits(5);
if (this.dnum < 0)
{
return(false);
}
this.dnum++;
A_1.DropBits(5);
this.num = this.lnum + this.dnum;
this.litdistLens = new byte[this.num];
this.mode = 2;
goto IL_BD;
}
return(false);
}
