dff6752ac8
- Reformat logo license as a plain text file. - Fix outdated links or references to SFC or Visual Script. - Tweak contents of `CONTRIBUTING.md` to highlight contributor docs more prominently, and make it easier to parse. - Tweak formatting and contents in `thirdparty/README.md` for consistency.
155 lines
4.8 KiB
Diff
155 lines
4.8 KiB
Diff
diff --git a/thirdparty/misc/clipper.cpp b/thirdparty/misc/clipper.cpp
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index 8c3a59c4ca..c67045d113 100644
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--- a/thirdparty/misc/clipper.cpp
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+++ b/thirdparty/misc/clipper.cpp
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@@ -48,6 +48,38 @@
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#include <ostream>
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#include <functional>
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+//Explicitly disables exceptions handling for target platform
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+//#define CLIPPER_NOEXCEPTION
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+
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+#define CLIPPER_THROW(exception) std::abort()
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+#define CLIPPER_TRY if(true)
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+#define CLIPPER_CATCH(exception) if(false)
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+
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+#if defined(__cpp_exceptions) || defined(__EXCEPTIONS) || defined(_CPPUNWIND)
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+ #ifndef CLIPPER_NOEXCEPTION
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+ #undef CLIPPER_THROW
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+ #define CLIPPER_THROW(exception) throw exception
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+ #undef CLIPPER_TRY
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+ #define CLIPPER_TRY try
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+ #undef CLIPPER_CATCH
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+ #define CLIPPER_CATCH(exception) catch(exception)
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+ #endif
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+#endif
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+
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+//Optionally allows to override exception macros
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+#if defined(CLIPPER_THROW_USER)
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+ #undef CLIPPER_THROW
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+ #define CLIPPER_THROW CLIPPER_THROW_USER
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+#endif
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+#if defined(CLIPPER_TRY_USER)
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+ #undef CLIPPER_TRY
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+ #define CLIPPER_TRY CLIPPER_TRY_USER
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+#endif
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+#if defined(CLIPPER_CATCH_USER)
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+ #undef CLIPPER_CATCH
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+ #define CLIPPER_CATCH CLIPPER_CATCH_USER
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+#endif
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+
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namespace ClipperLib {
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static double const pi = 3.141592653589793238;
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@@ -898,7 +930,7 @@ void RangeTest(const IntPoint& Pt, bool& useFullRange)
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if (useFullRange)
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{
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if (Pt.X > hiRange || Pt.Y > hiRange || -Pt.X > hiRange || -Pt.Y > hiRange)
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- throw clipperException("Coordinate outside allowed range");
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+ CLIPPER_THROW(clipperException("Coordinate outside allowed range"));
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}
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else if (Pt.X > loRange|| Pt.Y > loRange || -Pt.X > loRange || -Pt.Y > loRange)
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{
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@@ -1046,10 +1078,10 @@ bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
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{
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#ifdef use_lines
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if (!Closed && PolyTyp == ptClip)
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- throw clipperException("AddPath: Open paths must be subject.");
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+ CLIPPER_THROW(clipperException("AddPath: Open paths must be subject."));
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#else
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if (!Closed)
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- throw clipperException("AddPath: Open paths have been disabled.");
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+ CLIPPER_THROW(clipperException("AddPath: Open paths have been disabled."));
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#endif
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int highI = (int)pg.size() -1;
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@@ -1062,7 +1094,7 @@ bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
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bool IsFlat = true;
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//1. Basic (first) edge initialization ...
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- try
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+ CLIPPER_TRY
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{
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edges[1].Curr = pg[1];
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RangeTest(pg[0], m_UseFullRange);
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@@ -1075,10 +1107,10 @@ bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
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InitEdge(&edges[i], &edges[i+1], &edges[i-1], pg[i]);
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}
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}
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- catch(...)
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+ CLIPPER_CATCH(...)
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{
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delete [] edges;
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- throw; //range test fails
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+ CLIPPER_THROW(); //range test fails
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}
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TEdge *eStart = &edges[0];
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@@ -1442,7 +1474,7 @@ void ClipperBase::SwapPositionsInAEL(TEdge *Edge1, TEdge *Edge2)
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void ClipperBase::UpdateEdgeIntoAEL(TEdge *&e)
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{
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if (!e->NextInLML)
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- throw clipperException("UpdateEdgeIntoAEL: invalid call");
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+ CLIPPER_THROW(clipperException("UpdateEdgeIntoAEL: invalid call"));
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e->NextInLML->OutIdx = e->OutIdx;
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TEdge* AelPrev = e->PrevInAEL;
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@@ -1510,7 +1542,7 @@ bool Clipper::Execute(ClipType clipType, Paths &solution,
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{
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if( m_ExecuteLocked ) return false;
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if (m_HasOpenPaths)
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- throw clipperException("Error: PolyTree struct is needed for open path clipping.");
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+ CLIPPER_THROW(clipperException("Error: PolyTree struct is needed for open path clipping."));
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m_ExecuteLocked = true;
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solution.resize(0);
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m_SubjFillType = subjFillType;
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@@ -1560,7 +1592,7 @@ void Clipper::FixHoleLinkage(OutRec &outrec)
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bool Clipper::ExecuteInternal()
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{
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bool succeeded = true;
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- try {
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+ CLIPPER_TRY {
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Reset();
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m_Maxima = MaximaList();
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m_SortedEdges = 0;
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@@ -1583,7 +1615,7 @@ bool Clipper::ExecuteInternal()
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InsertLocalMinimaIntoAEL(botY);
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}
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}
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- catch(...)
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+ CLIPPER_CATCH(...)
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{
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succeeded = false;
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}
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@@ -2827,18 +2859,18 @@ void Clipper::ProcessHorizontal(TEdge *horzEdge)
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bool Clipper::ProcessIntersections(const cInt topY)
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{
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if( !m_ActiveEdges ) return true;
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- try {
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+ CLIPPER_TRY {
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BuildIntersectList(topY);
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size_t IlSize = m_IntersectList.size();
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if (IlSize == 0) return true;
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if (IlSize == 1 || FixupIntersectionOrder()) ProcessIntersectList();
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else return false;
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}
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- catch(...)
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+ CLIPPER_CATCH(...)
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{
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m_SortedEdges = 0;
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DisposeIntersectNodes();
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- throw clipperException("ProcessIntersections error");
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+ CLIPPER_THROW(clipperException("ProcessIntersections error"));
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}
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m_SortedEdges = 0;
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return true;
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@@ -3002,7 +3034,7 @@ void Clipper::DoMaxima(TEdge *e)
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DeleteFromAEL(eMaxPair);
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}
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#endif
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- else throw clipperException("DoMaxima error");
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+ else CLIPPER_THROW(clipperException("DoMaxima error"));
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}
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//------------------------------------------------------------------------------
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