本文整理汇总了C++中SkOpSegment::setUpWinding方法的典型用法代码示例。如果您正苦于以下问题：C++ SkOpSegment::setUpWinding方法的具体用法？C++ SkOpSegment::setUpWinding怎么用？C++ SkOpSegment::setUpWinding使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SkOpSegment的用法示例。
在下文中一共展示了SkOpSegment::setUpWinding方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: FindChase
SkOpSegment* FindChase(SkTDArray<SkOpSpanBase*>* chase, SkOpSpanBase** startPtr,
SkOpSpanBase** endPtr) {
while (chase->count()) {
SkOpSpanBase* span;
chase->pop(&span);
SkOpSegment* segment = span->segment();
*startPtr = span->ptT()->next()->span();
bool done = true;
*endPtr = nullptr;
if (SkOpAngle* last = segment->activeAngle(*startPtr, startPtr, endPtr, &done)) {
*startPtr = last->start();
*endPtr = last->end();
#if TRY_ROTATE
*chase->insert(0) = span;
#else
*chase->append() = span;
#endif
return last->segment();
}
if (done) {
continue;
}
// find first angle, initialize winding to computed wind sum
int winding;
bool sortable;
const SkOpAngle* angle = AngleWinding(*startPtr, *endPtr, &winding, &sortable);
if (winding == SK_MinS32) {
continue;
}
int sumWinding SK_INIT_TO_AVOID_WARNING;
if (sortable) {
segment = angle->segment();
sumWinding = segment->updateWindingReverse(angle);
}
SkOpSegment* first = nullptr;
const SkOpAngle* firstAngle = angle;
while ((angle = angle->next()) != firstAngle) {
segment = angle->segment();
SkOpSpanBase* start = angle->start();
SkOpSpanBase* end = angle->end();
int maxWinding;
if (sortable) {
segment->setUpWinding(start, end, &maxWinding, &sumWinding);
}
if (!segment->done(angle)) {
if (!first && (sortable || start->starter(end)->windSum() != SK_MinS32)) {
first = segment;
*startPtr = start;
*endPtr = end;
}
// OPTIMIZATION: should this also add to the chase?
if (sortable) {
(void) segment->markAngle(maxWinding, sumWinding, angle);
}
}
}
if (first) {
#if TRY_ROTATE
*chase->insert(0) = span;
#else
*chase->append() = span;
#endif
return first;
}
}
return nullptr;
}