{
//----- Continue to search -----//
level = min_level;
- fast_forward = true;
+
+ // We cannot fast-forward if there is no mip-map data at
+ // at the minimum level.
+ fast_forward = (_mip_map[level].data != NULL);
if (min_length < MipMapScaleFactor)
{
// We can fast forward only if there was no change
const bool sample =
(get_sample(index) & sig_mask) != 0;
- fast_forward = last_sample == sample;
+ if (last_sample != sample)
+ fast_forward = false;
}
if (fast_forward) {