public void FillWindow()
{
/* If the window is almost full and there is insufficient lookahead,
* move the upper half to the lower one to make room in the upper half.
*/
if (strstart >= WSIZE + MAX_DIST) {
SlideWindow();
}
/* If there is not enough lookahead, but still some input left,
* read in the input
*/
while (lookahead < DeflaterConstants.MIN_LOOKAHEAD && inputOff < inputEnd) {
int more = 2 * WSIZE - lookahead - strstart;
if (more > inputEnd - inputOff) {
more = inputEnd - inputOff;
}
System.Array.Copy(inputBuf, inputOff, window, strstart + lookahead, more);
adler.Update(inputBuf, inputOff, more);
inputOff += more;
totalIn += more;
lookahead += more;
}
if (lookahead >= MIN_MATCH) {
UpdateHash();
}
}