private void SetupRandPartA()
{
if (i2 <= last)
{
chPrev = ch2;
ch2 = ll8[tPos];
tPos = tt[tPos];
if (rNToGo == 0)
{
rNToGo = BZip2Constants.rNums[rTPos];
rTPos++;
if (rTPos == 512)
{
rTPos = 0;
}
}
rNToGo--;
ch2 ^= (int)((rNToGo == 1) ? 1 : 0);
i2++;
currentChar = ch2;
currentState = RAND_PART_B_STATE;
mCrc.UpdateCRC(ch2);
}
else
{
EndBlock();
InitBlock();
SetupBlock();
}
}
private void WriteRun()
{
if (last < allowableBlockSize)
{
inUse[currentChar] = true;
for (int i = 0; i < runLength; i++)
{
mCrc.UpdateCRC((ushort)currentChar);
}
switch (runLength)
{
case 1:
last++;
block[last + 1] = (char)currentChar;
break;
case 2:
last++;
block[last + 1] = (char)currentChar;
last++;
block[last + 1] = (char)currentChar;
break;
case 3:
last++;
block[last + 1] = (char)currentChar;
last++;
block[last + 1] = (char)currentChar;
last++;
block[last + 1] = (char)currentChar;
break;
default:
inUse[runLength - 4] = true;
last++;
block[last + 1] = (char)currentChar;
last++;
block[last + 1] = (char)currentChar;
last++;
block[last + 1] = (char)currentChar;
last++;
block[last + 1] = (char)currentChar;
last++;
block[last + 1] = (char)(runLength - 4);
break;
}
}
else
{
EndBlock();
InitBlock();
WriteRun();
}
}
