internal bool _tr_tally(int dist, int lc)
{
pending[_distanceOffset + last_lit * 2] = (byte)((uint)dist >> 8);
pending[_distanceOffset + last_lit * 2 + 1] = (byte)dist;
pending[_lengthOffset + last_lit] = (byte)lc;
last_lit++;
if (dist == 0)
{
dyn_ltree[lc * 2]++;
}
else
{
matches++;
dist--;
dyn_ltree[(ZTree.LengthCode[lc] + InternalConstants.LITERALS + 1) * 2]++;
dyn_dtree[ZTree.DistanceCode(dist) * 2]++;
}
if ((last_lit & 0x1FFF) == 0 && compressionLevel > CompressionLevel.Level2)
{
int num = last_lit << 3;
int num2 = strstart - block_start;
for (int i = 0; i < InternalConstants.D_CODES; i++)
{
num = (int)(num + dyn_dtree[i * 2] * (5L + (long)ZTree.ExtraDistanceBits[i]));
}
num >>= 3;
if (matches < last_lit / 2 && num < num2 / 2)
{
return(true);
}
}
return(last_lit == lit_bufsize - 1 || last_lit == lit_bufsize);
}
internal void send_compressed_block(short[] ltree, short[] dtree)
{
int num = 0;
if (last_lit != 0)
{
do
{
int num2 = _distanceOffset + num * 2;
int num3 = ((pending[num2] << 8) & 0xFF00) | (pending[num2 + 1] & 0xFF);
int num4 = pending[_lengthOffset + num] & 0xFF;
num++;
if (num3 == 0)
{
send_code(num4, ltree);
}
else
{
int num5 = ZTree.LengthCode[num4];
send_code(num5 + InternalConstants.LITERALS + 1, ltree);
int num6 = ZTree.ExtraLengthBits[num5];
if (num6 != 0)
{
num4 -= ZTree.LengthBase[num5];
send_bits(num4, num6);
}
num3--;
num5 = ZTree.DistanceCode(num3);
send_code(num5, dtree);
num6 = ZTree.ExtraDistanceBits[num5];
if (num6 != 0)
{
num3 -= ZTree.DistanceBase[num5];
send_bits(num3, num6);
}
}
}while (num < last_lit);
}
send_code(END_BLOCK, ltree);
last_eob_len = ltree[END_BLOCK * 2 + 1];
}