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BulletSim: fix corner case when rebuilding a compound linkset while 

a mesh/hull while a mesh or hull is being rebuilt when its asset
is fetched. This fixes a 'pure virtual function' crash when changing
physical state of complex linksets that include many meshes.
cpu-performance
Robert Adams 2013-06-05 07:09:43 -07:00
parent 43d804b998
commit 0c971d148c
1 changed files with 46 additions and 11 deletions
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47
OpenSim/Region/Physics/BulletSPlugin/BSShapes.cs
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@ -388,10 +388,22 @@ public class BSShapeMesh : BSShape
return retMesh; return retMesh;
} }
public override BSShape GetReference(BSScene pPhysicsScene, BSPhysObject pPrim) public override BSShape GetReference(BSScene pPhysicsScene, BSPhysObject pPrim)
{
BSShape ret = null;
// If the underlying shape is native, the actual shape has not been build (waiting for asset)
// and we must create a copy of the native shape since they are never shared.
if (physShapeInfo.HasPhysicalShape && physShapeInfo.isNativeShape)
{
// TODO: decide when the native shapes should be freed. Check in Dereference?
ret = BSShapeNative.GetReference(pPhysicsScene, pPrim, BSPhysicsShapeType.SHAPE_BOX, FixedShapeKey.KEY_BOX);
}
else
{ {
// Another reference to this shape is just counted. // Another reference to this shape is just counted.
IncrementReference(); IncrementReference();
return this; ret = this;
}
return ret;
} }
public override void Dereference(BSScene physicsScene) public override void Dereference(BSScene physicsScene)
{ {
@ -559,10 +571,22 @@ public class BSShapeHull : BSShape
return retHull; return retHull;
} }
public override BSShape GetReference(BSScene pPhysicsScene, BSPhysObject pPrim) public override BSShape GetReference(BSScene pPhysicsScene, BSPhysObject pPrim)
{
BSShape ret = null;
// If the underlying shape is native, the actual shape has not been build (waiting for asset)
// and we must create a copy of the native shape since they are never shared.
if (physShapeInfo.HasPhysicalShape && physShapeInfo.isNativeShape)
{
// TODO: decide when the native shapes should be freed. Check in Dereference?
ret = BSShapeNative.GetReference(pPhysicsScene, pPrim, BSPhysicsShapeType.SHAPE_BOX, FixedShapeKey.KEY_BOX);
}
else
{ {
// Another reference to this shape is just counted. // Another reference to this shape is just counted.
IncrementReference(); IncrementReference();
return this; ret = this;
}
return ret;
} }
public override void Dereference(BSScene physicsScene) public override void Dereference(BSScene physicsScene)
{ {
@ -1075,12 +1099,23 @@ public class BSShapeGImpact : BSShape
(w, iC, i, vC, v) => physicsScene.PE.CreateGImpactShape(w, iC, i, vC, v) ); (w, iC, i, vC, v) => physicsScene.PE.CreateGImpactShape(w, iC, i, vC, v) );
} }
public override BSShape GetReference(BSScene physicsScene, BSPhysObject prim) public override BSShape GetReference(BSScene pPhysicsScene, BSPhysObject pPrim)
{ {
// Calling this reference means we want another handle to an existing shape BSShape ret = null;
// (usually linksets) so return this copy. // If the underlying shape is native, the actual shape has not been build (waiting for asset)
// and we must create a copy of the native shape since they are never shared.
if (physShapeInfo.HasPhysicalShape && physShapeInfo.isNativeShape)
{
// TODO: decide when the native shapes should be freed. Check in Dereference?
ret = BSShapeNative.GetReference(pPhysicsScene, pPrim, BSPhysicsShapeType.SHAPE_BOX, FixedShapeKey.KEY_BOX);
}
else
{
// Another reference to this shape is just counted.
IncrementReference(); IncrementReference();
return this; ret = this;
}
return ret;
} }
// Dereferencing a compound shape releases the hold on all the child shapes. // Dereferencing a compound shape releases the hold on all the child shapes.
public override void Dereference(BSScene physicsScene) public override void Dereference(BSScene physicsScene)