static int unk1(UnkClass a, int a2)
{
var v2 = a2;
var v3 = a2 - a.unk4038;
if (a2 - a.unk4038 <= 0)
{
uint v7 = (uint)(a.unk4040 & ((1 << a2) - 1));
a.unk4040 >>= v2;
a.unk4038 -= v2;
return((int)v7);
}
else
{
var v4 = a.unk24;
while (true)
{
var v5 = a.unk28;
if (v5 >= v4)
{
break;
}
var v6 = a.unk4038;
v3 -= 8;
a.unk4040 |= a.unk8[v5] << a.unk4038;
a.unk28 = v5 + 1;
a.unk4038 = v6 + 8;
if (v3 <= 0)
{
uint v7 = (uint)(a.unk4040 & ((1 << a2) - 1));
a.unk4040 >>= v2;
a.unk4038 -= v2;
return((int)v7);
}
}
return(-1);
}
}
static uint DecompressBlock(UnkClass unkClass)
{
var v17 = new byte[4096];
do
{
var result = unk1(unkClass, unkClass.dword4030);
var v3 = result;
if (result == -1)
{
break;
}
var v4 = unkClass.dword6848;
if (v4 == -1)
{
if (result >= 256)
{
throw (new Exception("Unexpected compression code"));
}
//test.gap684C[test.dwordE84C++] = result;
var temp = BitConverter.GetBytes(result);
unkClass.OutputBuffer[unkClass.dwordE84C++] = temp[0];
unkClass.OutputBuffer[unkClass.dwordE84C + 1] = temp[1];
unkClass.OutputBuffer[unkClass.dwordE84C + 2] = temp[2];
unkClass.OutputBuffer[unkClass.dwordE84C + 3] = temp[3];
}
else
{
var v5 = unkClass.signed402C;
var i = 0;
if (v3 < v5)
{
var v10 = v3;
var v11 = 0;
var v12 = 0;
do
{
v12 = v11;
v17[v11++] = unkClass.gap0[4 * v10 + 2];
v10 = BitConverter.ToInt16(unkClass.gap0, 4 * v10); //*(unsigned __int16 *)&a1->gap0[4 * v10 + 44];
}while ((ushort)v10 != 0xFFFF);
for (i = v17[v12]; v12 >= 0; unkClass.OutputBuffer[unkClass.dwordE84C++] = v17[v12--])
{
;
}
}
else
{
if (v3 != v5)
{
throw (new Exception("Unexpected next compression code"));
}
var v6 = 0;
var v7 = 0;
do
{
v7 = v6;
var v8 = unkClass.gap0[4 * v4 + 2];
v4 = BitConverter.ToInt16(unkClass.gap0, 4 * v4);//*(unsigned __int16 *)&a1->gap0[4 * v4 + 44];
v17[v6++] = v8;
}while ((ushort)v4 != 0xFFFF);
i = v17[v7];
for (var m = i; v7 >= 0; unkClass.OutputBuffer[unkClass.dwordE84C++] = v17[v7--])
{
i = m;
}
var temp2 = BitConverter.GetBytes(i);
//test.gap684C[test.dwordE84C++] = i;
unkClass.OutputBuffer[unkClass.dwordE84C++] = temp2[0];
unkClass.OutputBuffer[unkClass.dwordE84C + 1] = temp2[1];
unkClass.OutputBuffer[unkClass.dwordE84C + 2] = temp2[2];
unkClass.OutputBuffer[unkClass.dwordE84C + 3] = temp2[3];
}
var v13 = unkClass.dword6848;
//test.gap0[4 * test.signed402C + 2] = (byte)i;
var temp3 = BitConverter.GetBytes(i);
unkClass.gap0[4 * unkClass.signed402C + 2] = temp3[0];
unkClass.gap0[4 * unkClass.signed402C + 2 + 1] = temp3[1];
//unkClass.gap0[4 * unkClass.signed402C + 0] = (byte)v13;
temp3 = BitConverter.GetBytes(v13);
unkClass.gap0[4 * unkClass.signed402C] = temp3[0];
unkClass.gap0[4 * unkClass.signed402C + 1] = temp3[1];
var v14 = (i ^ v13) & 0x3FF;
//test.gap4049[2 * test.signed402C + 0x7FF] = (byte)(test.char4048 + v14);
var temp = BitConverter.GetBytes(unkClass.signed402C);
unkClass.char4048[v14] = temp[0];
unkClass.char4048[v14] = temp[1];
var v15 = unkClass.dword4030;
++unkClass.signed402C;
result = (1 << v15);
if (unkClass.signed402C == result)
{
result = (v15 + 1);
unkClass.dword4030 = result;
if (result > 12)
{
unkClass.signed402C = 256;
unkClass.dword4030 = 9;
//result = (__int64)memset(&a1->char4048, 255, 0x800ui64);
unkClass.char4048 = new byte[2048];
unkClass.dword6848 = -1;
continue;
}
}
}
unkClass.dword6848 = v3;
}while (unkClass.dwordE84C < 0x7000);
return(0);
}
