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0031490: Foundation Classes, Poly_Connect - speed up temporary allocations

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Poly_Connect::Load() now uses NCollection_IncAllocator instead of new/delete
for allocation temporary sequence elements.

StdPrs_ShadedShape, fillFaceBoundaries() now uses NCollection_IncAllocator for temporary points.
This commit is contained in:
kgv
2020-04-08 10:22:26 +03:00
committed by bugmaster
parent f0ada3e8d4
commit 8f08e231fa
2 changed files with 28 additions and 20 deletions
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15
src/Poly/Poly_Connect.cxx
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@@ -16,6 +16,7 @@
#include <Poly_Connect.hxx>
#include <NCollection_IncAllocator.hxx>
#include <Poly_Triangle.hxx>
#include <Poly_Triangulation.hxx>
@@ -23,9 +24,9 @@
struct polyedge
{
polyedge* next; // the next edge in the list
Standard_Integer nd; // the second node of the edge
Standard_Integer nt[2]; // the two adjacent triangles
Standard_Integer nn[2]; // the two adjacent nodes
Standard_Integer nd; // the second node of the edge
DEFINE_STANDARD_ALLOC
};
@@ -97,6 +98,8 @@ void Poly_Connect::Load (const Handle(Poly_Triangulation)& theTriangulation)
// create an array to store the edges starting from the vertices
NCollection_Array1<polyedge*> anEdges (1, aNbNodes);
anEdges.Init (NULL);
// use incremental allocator for small allocations
Handle(NCollection_IncAllocator) anIncAlloc = new NCollection_IncAllocator();
// loop on the triangles
NCollection_Vec3<Standard_Integer> aTriNodes;
@@ -144,7 +147,7 @@ void Poly_Connect::Load (const Handle(Poly_Triangulation)& theTriangulation)
if (ced == NULL)
{
// create the edge if not found
ced = new polyedge();
ced = (polyedge* )anIncAlloc->Allocate (sizeof(polyedge));
ced->next = anEdges[anEdgeNodes[0]];
anEdges[anEdgeNodes[0]] = ced;
ced->nd = anEdgeNodes[1];
@@ -196,16 +199,16 @@ void Poly_Connect::Load (const Handle(Poly_Triangulation)& theTriangulation)
anAdjIndex += 3;
}
// destroy the edges array
for (Standard_Integer aNodeIter = anEdges.Lower(); aNodeIter <= anEdges.Upper(); ++aNodeIter)
// destroy the edges array - can be skipped when using NCollection_IncAllocator
/*for (Standard_Integer aNodeIter = anEdges.Lower(); aNodeIter <= anEdges.Upper(); ++aNodeIter)
{
for (polyedge* anEdgeIter = anEdges[aNodeIter]; anEdgeIter != NULL;)
{
polyedge* aTmp = anEdgeIter->next;
delete anEdgeIter;
anIncAlloc->Free (anEdgeIter);
anEdgeIter = aTmp;
}
}
}*/
}
//=======================================================================