/**
* fill image
*/
void UMImage::fill(const UMVec4d& color)
{
for (UMImage::ImageBuffer::iterator it = mutable_list().begin(); it != mutable_list().end(); ++it)
{
(*it) = umbase::UMVec4d(color);
}
}
/**
* clear image buffer
*/
void UMImage::clear()
{
for (int y = 0; y < height(); ++y)
{
for (int x = 0; x < width(); ++x)
{
int pos = width() * y + x;
mutable_list().at(pos) = UMVec4d(0);
}
}
}
_(ensures \oset_disjoint(dll_reach(h), dll_reach(i)))
{
_(assume mutable_list(h))
DLNode * j;
if (h != NULL && i != h)
{
j = i->prev;
i->prev = NULL;
j->next = NULL;
i->prev = NULL;
}
}
_(ensures queue(head))
{
_(assume mutable_qhead(head))
QNode * fst = head->first;
_(assume mutable_list(fst))
QNode * fst_nxt = fst->next;
head->first = fst_nxt;
if (fst_nxt == NULL) {
head->last = fst_nxt;
}
return head;
}
