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Merge pull request #29003 from Xrayez/clipper-6.4.2-exceptions-fix 

Build Clipper with `tools=no` and patch it to auto-disable exceptions
This commit is contained in:
Rémi Verschelde 2019-05-22 15:58:24 +02:00 committed by GitHub
parent 02bc82f9be 9bf48db891
commit fa5cc1da7a
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 202 additions and 18 deletions
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1
core/SCsub
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@ -58,6 +58,7 @@ thirdparty_misc_sources = [
"md5.cpp",
"pcg.cpp",
"triangulator.cpp",
"clipper.cpp",
]
thirdparty_misc_sources = [thirdparty_misc_dir + file for file in thirdparty_misc_sources]
env_thirdparty.add_source_files(env.core_sources, thirdparty_misc_sources)

3
editor/SCsub
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@ -79,9 +79,6 @@ if env['tools']:
env.CommandNoCache('#editor/builtin_fonts.gen.h', flist, run_in_subprocess(editor_builders.make_fonts_header))
env.add_source_files(env.editor_sources, "*.cpp")
env_thirdparty = env.Clone()
env_thirdparty.disable_warnings()
env_thirdparty.add_source_files(env.editor_sources, ["#thirdparty/misc/clipper.cpp"])
SConscript('collada/SCsub')
SConscript('doc/SCsub')

2
thirdparty/README.md vendored
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@ -346,7 +346,7 @@ Collection of single-file libraries used in Godot components.
* License: Public Domain
- `clipper.{cpp,hpp}`
* Upstream: https://sourceforge.net/projects/polyclipping
* Version: 6.4.2
* Version: 6.4.2 + Godot changes (added optional exceptions handling)
* License: BSL-1.0
- `fastlz.{c,h}`
* Upstream: https://github.com/ariya/FastLZ

154
thirdparty/misc/clipper-exceptions.patch vendored Normal file
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@ -0,0 +1,154 @@
diff --git a/thirdparty/misc/clipper.cpp b/thirdparty/misc/clipper.cpp
index 8c3a59c4ca..c67045d113 100644
--- a/thirdparty/misc/clipper.cpp
+++ b/thirdparty/misc/clipper.cpp
@@ -48,6 +48,38 @@
#include <ostream>
#include <functional>
+//Explicitly disables exceptions handling for target platform
+//#define CLIPPER_NOEXCEPTION
+
+#define CLIPPER_THROW(exception) std::abort()
+#define CLIPPER_TRY if(true)
+#define CLIPPER_CATCH(exception) if(false)
+
+#if defined(__cpp_exceptions) || defined(__EXCEPTIONS) || defined(_CPPUNWIND)
+ #ifndef CLIPPER_NOEXCEPTION
+ #undef CLIPPER_THROW
+ #define CLIPPER_THROW(exception) throw exception
+ #undef CLIPPER_TRY
+ #define CLIPPER_TRY try
+ #undef CLIPPER_CATCH
+ #define CLIPPER_CATCH(exception) catch(exception)
+ #endif
+#endif
+
+//Optionally allows to override exception macros
+#if defined(CLIPPER_THROW_USER)
+ #undef CLIPPER_THROW
+ #define CLIPPER_THROW CLIPPER_THROW_USER
+#endif
+#if defined(CLIPPER_TRY_USER)
+ #undef CLIPPER_TRY
+ #define CLIPPER_TRY CLIPPER_TRY_USER
+#endif
+#if defined(CLIPPER_CATCH_USER)
+ #undef CLIPPER_CATCH
+ #define CLIPPER_CATCH CLIPPER_CATCH_USER
+#endif
+
namespace ClipperLib {
static double const pi = 3.141592653589793238;
@@ -898,7 +930,7 @@ void RangeTest(const IntPoint& Pt, bool& useFullRange)
if (useFullRange)
{
if (Pt.X > hiRange || Pt.Y > hiRange || -Pt.X > hiRange || -Pt.Y > hiRange)
- throw clipperException("Coordinate outside allowed range");
+ CLIPPER_THROW(clipperException("Coordinate outside allowed range"));
}
else if (Pt.X > loRange|| Pt.Y > loRange || -Pt.X > loRange || -Pt.Y > loRange)
{
@@ -1046,10 +1078,10 @@ bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
{
#ifdef use_lines
if (!Closed && PolyTyp == ptClip)
- throw clipperException("AddPath: Open paths must be subject.");
+ CLIPPER_THROW(clipperException("AddPath: Open paths must be subject."));
#else
if (!Closed)
- throw clipperException("AddPath: Open paths have been disabled.");
+ CLIPPER_THROW(clipperException("AddPath: Open paths have been disabled."));
#endif
int highI = (int)pg.size() -1;
@@ -1062,7 +1094,7 @@ bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
bool IsFlat = true;
//1. Basic (first) edge initialization ...
- try
+ CLIPPER_TRY
{
edges[1].Curr = pg[1];
RangeTest(pg[0], m_UseFullRange);
@@ -1075,10 +1107,10 @@ bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
InitEdge(&edges[i], &edges[i+1], &edges[i-1], pg[i]);
}
}
- catch(...)
+ CLIPPER_CATCH(...)
{
delete [] edges;
- throw; //range test fails
+ CLIPPER_THROW(); //range test fails
}
TEdge *eStart = &edges[0];
@@ -1442,7 +1474,7 @@ void ClipperBase::SwapPositionsInAEL(TEdge *Edge1, TEdge *Edge2)
void ClipperBase::UpdateEdgeIntoAEL(TEdge *&e)
{
if (!e->NextInLML)
- throw clipperException("UpdateEdgeIntoAEL: invalid call");
+ CLIPPER_THROW(clipperException("UpdateEdgeIntoAEL: invalid call"));
e->NextInLML->OutIdx = e->OutIdx;
TEdge* AelPrev = e->PrevInAEL;
@@ -1510,7 +1542,7 @@ bool Clipper::Execute(ClipType clipType, Paths &solution,
{
if( m_ExecuteLocked ) return false;
if (m_HasOpenPaths)
- throw clipperException("Error: PolyTree struct is needed for open path clipping.");
+ CLIPPER_THROW(clipperException("Error: PolyTree struct is needed for open path clipping."));
m_ExecuteLocked = true;
solution.resize(0);
m_SubjFillType = subjFillType;
@@ -1560,7 +1592,7 @@ void Clipper::FixHoleLinkage(OutRec &outrec)
bool Clipper::ExecuteInternal()
{
bool succeeded = true;
- try {
+ CLIPPER_TRY {
Reset();
m_Maxima = MaximaList();
m_SortedEdges = 0;
@@ -1583,7 +1615,7 @@ bool Clipper::ExecuteInternal()
InsertLocalMinimaIntoAEL(botY);
}
}
- catch(...)
+ CLIPPER_CATCH(...)
{
succeeded = false;
}
@@ -2827,18 +2859,18 @@ void Clipper::ProcessHorizontal(TEdge *horzEdge)
bool Clipper::ProcessIntersections(const cInt topY)
{
if( !m_ActiveEdges ) return true;
- try {
+ CLIPPER_TRY {
BuildIntersectList(topY);
size_t IlSize = m_IntersectList.size();
if (IlSize == 0) return true;
if (IlSize == 1 || FixupIntersectionOrder()) ProcessIntersectList();
else return false;
}
- catch(...)
+ CLIPPER_CATCH(...)
{
m_SortedEdges = 0;
DisposeIntersectNodes();
- throw clipperException("ProcessIntersections error");
+ CLIPPER_THROW(clipperException("ProcessIntersections error"));
}
m_SortedEdges = 0;
return true;
@@ -3002,7 +3034,7 @@ void Clipper::DoMaxima(TEdge *e)
DeleteFromAEL(eMaxPair);
}
#endif
- else throw clipperException("DoMaxima error");
+ else CLIPPER_THROW(clipperException("DoMaxima error"));
}
//------------------------------------------------------------------------------

60
thirdparty/misc/clipper.cpp vendored
View File

@ -48,6 +48,38 @@
#include <ostream>
#include <functional>
//Explicitly disables exceptions handling for target platform
//#define CLIPPER_NOEXCEPTION
#define CLIPPER_THROW(exception) std::abort()
#define CLIPPER_TRY if(true)
#define CLIPPER_CATCH(exception) if(false)
#if defined(__cpp_exceptions) || defined(__EXCEPTIONS) || defined(_CPPUNWIND)
#ifndef CLIPPER_NOEXCEPTION
#undef CLIPPER_THROW
#define CLIPPER_THROW(exception) throw exception
#undef CLIPPER_TRY
#define CLIPPER_TRY try
#undef CLIPPER_CATCH
#define CLIPPER_CATCH(exception) catch(exception)
#endif
#endif
//Optionally allows to override exception macros
#if defined(CLIPPER_THROW_USER)
#undef CLIPPER_THROW
#define CLIPPER_THROW CLIPPER_THROW_USER
#endif
#if defined(CLIPPER_TRY_USER)
#undef CLIPPER_TRY
#define CLIPPER_TRY CLIPPER_TRY_USER
#endif
#if defined(CLIPPER_CATCH_USER)
#undef CLIPPER_CATCH
#define CLIPPER_CATCH CLIPPER_CATCH_USER
#endif
namespace ClipperLib {
static double const pi = 3.141592653589793238;
@ -898,7 +930,7 @@ void RangeTest(const IntPoint& Pt, bool& useFullRange)
if (useFullRange)
{
if (Pt.X > hiRange || Pt.Y > hiRange || -Pt.X > hiRange || -Pt.Y > hiRange)
throw clipperException("Coordinate outside allowed range");
CLIPPER_THROW(clipperException("Coordinate outside allowed range"));
}
else if (Pt.X > loRange|| Pt.Y > loRange || -Pt.X > loRange || -Pt.Y > loRange)
{
@ -1046,10 +1078,10 @@ bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
{
#ifdef use_lines
if (!Closed && PolyTyp == ptClip)
throw clipperException("AddPath: Open paths must be subject.");
CLIPPER_THROW(clipperException("AddPath: Open paths must be subject."));
#else
if (!Closed)
throw clipperException("AddPath: Open paths have been disabled.");
CLIPPER_THROW(clipperException("AddPath: Open paths have been disabled."));
#endif
int highI = (int)pg.size() -1;
@ -1062,7 +1094,7 @@ bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
bool IsFlat = true;
//1. Basic (first) edge initialization ...
try
CLIPPER_TRY
{
edges[1].Curr = pg[1];
RangeTest(pg[0], m_UseFullRange);
@ -1075,10 +1107,10 @@ bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
InitEdge(&edges[i], &edges[i+1], &edges[i-1], pg[i]);
}
}
catch(...)
CLIPPER_CATCH(...)
{
delete [] edges;
throw; //range test fails
CLIPPER_THROW(); //range test fails
}
TEdge *eStart = &edges[0];
@ -1442,7 +1474,7 @@ void ClipperBase::SwapPositionsInAEL(TEdge *Edge1, TEdge *Edge2)
void ClipperBase::UpdateEdgeIntoAEL(TEdge *&e)
{
if (!e->NextInLML)
throw clipperException("UpdateEdgeIntoAEL: invalid call");
CLIPPER_THROW(clipperException("UpdateEdgeIntoAEL: invalid call"));
e->NextInLML->OutIdx = e->OutIdx;
TEdge* AelPrev = e->PrevInAEL;
@ -1510,7 +1542,7 @@ bool Clipper::Execute(ClipType clipType, Paths &solution,
{
if( m_ExecuteLocked ) return false;
if (m_HasOpenPaths)
throw clipperException("Error: PolyTree struct is needed for open path clipping.");
CLIPPER_THROW(clipperException("Error: PolyTree struct is needed for open path clipping."));
m_ExecuteLocked = true;
solution.resize(0);
m_SubjFillType = subjFillType;
@ -1560,7 +1592,7 @@ void Clipper::FixHoleLinkage(OutRec &outrec)
bool Clipper::ExecuteInternal()
{
bool succeeded = true;
try {
CLIPPER_TRY {
Reset();
m_Maxima = MaximaList();
m_SortedEdges = 0;
@ -1583,7 +1615,7 @@ bool Clipper::ExecuteInternal()
InsertLocalMinimaIntoAEL(botY);
}
}
catch(...)
CLIPPER_CATCH(...)
{
succeeded = false;
}
@ -2827,18 +2859,18 @@ void Clipper::ProcessHorizontal(TEdge *horzEdge)
bool Clipper::ProcessIntersections(const cInt topY)
{
if( !m_ActiveEdges ) return true;
try {
CLIPPER_TRY {
BuildIntersectList(topY);
size_t IlSize = m_IntersectList.size();
if (IlSize == 0) return true;
if (IlSize == 1 || FixupIntersectionOrder()) ProcessIntersectList();
else return false;
}
catch(...)
CLIPPER_CATCH(...)
{
m_SortedEdges = 0;
DisposeIntersectNodes();
throw clipperException("ProcessIntersections error");
CLIPPER_THROW(clipperException("ProcessIntersections error"));
}
m_SortedEdges = 0;
return true;
@ -3002,7 +3034,7 @@ void Clipper::DoMaxima(TEdge *e)
DeleteFromAEL(eMaxPair);
}
#endif
else throw clipperException("DoMaxima error");
else CLIPPER_THROW(clipperException("DoMaxima error"));
}
//------------------------------------------------------------------------------