3rd-party/poly2tri
1
0
Fork 0
mirror of https://github.com/jhasse/poly2tri.git synced 2024-11-26 07:16:11 +01:00
Code Issues Projects Releases Wiki Activity

Check pointer before dereferencing it

Browse Source
This commit is contained in:
Piotr Kania 2021-04-26 10:25:12 +02:00
parent d949f3cd6f
commit af36bac4db
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
poly2tri/sweep/sweep.cc
View File

@ -65,12 +65,14 @@ void Sweep::FinalizationPolygon(SweepContext& tcx)
// Get an Internal triangle to start with
Triangle* t = tcx.front()->head()->next->triangle;
Point* p = tcx.front()->head()->next->point;
while (!t->GetConstrainedEdgeCW(*p)) {
while (t && !t->GetConstrainedEdgeCW(*p)) {
t = t->NeighborCCW(*p);
}
// Collect interior triangles constrained by edges
tcx.MeshClean(*t);
if (t) {
tcx.MeshClean(*t);
}
}
Node& Sweep::PointEvent(SweepContext& tcx, Point& point)
@ -227,7 +229,7 @@ void Sweep::FillAdvancingFront(SweepContext& tcx, Node& n)
// Fill right holes
Node* node = n.next;
while (node->next) {
while (node && node->next) {
// if HoleAngle exceeds 90 degrees then break.
if (LargeHole_DontFill(node)) break;
Fill(tcx, *node);
@ -237,7 +239,7 @@ void Sweep::FillAdvancingFront(SweepContext& tcx, Node& n)
// Fill left holes
node = n.prev;
while (node->prev) {
while (node && node->prev) {
// if HoleAngle exceeds 90 degrees then break.
if (LargeHole_DontFill(node)) break;
Fill(tcx, *node);