Update Bullet to version 2.80 (bullet svn revision 2537)

Remove Jamfiles and other unused files that stuck around during previous updates.

Add patches for local changes to the patches directory.

Update readme.txt, it had outdated infromation.

2 files changed, 73 insertions, 0 deletions

diff --git a/extern/bullet2/patches/ghost_softbody.patch b/extern/bullet2/patches/ghost_softbody.patch
new file mode 100644
index 00000000000..b150d57040d
--- /dev/null
+++ b/extern/bullet2/patches/ghost_softbody.patch
@@ -0,0 +1,42 @@
+Index: extern/bullet2/src/BulletSoftBody/btSoftBody.cpp
+===================================================================
+--- extern/bullet2/src/BulletSoftBody/btSoftBody.cpp	(Revision 43904)
++++ extern/bullet2/src/BulletSoftBody/btSoftBody.cpp	(Revision 43905)
+@@ -2780,21 +2780,23 @@
+ 	{
+ 		const RContact&		c = psb->m_rcontacts[i];
+ 		const sCti&			cti = c.m_cti;	
+-		btRigidBody* tmpRigid = btRigidBody::upcast(cti.m_colObj);
+ 
+-		const btVector3		va = tmpRigid ? tmpRigid->getVelocityInLocalPoint(c.m_c1)*dt : btVector3(0,0,0);
+-		const btVector3		vb = c.m_node->m_x-c.m_node->m_q;	
+-		const btVector3		vr = vb-va;
+-		const btScalar		dn = btDot(vr, cti.m_normal);		
+-		if(dn<=SIMD_EPSILON)
+-		{
+-			const btScalar		dp = btMin( (btDot(c.m_node->m_x, cti.m_normal) + cti.m_offset), mrg );
+-			const btVector3		fv = vr - (cti.m_normal * dn);
+-			// c0 is the impulse matrix, c3 is 1 - the friction coefficient or 0, c4 is the contact hardness coefficient
+-			const btVector3		impulse = c.m_c0 * ( (vr - (fv * c.m_c3) + (cti.m_normal * (dp * c.m_c4))) * kst );
+-			c.m_node->m_x -= impulse * c.m_c2;
+-			if (tmpRigid)
+-				tmpRigid->applyImpulse(impulse,c.m_c1);
++		if (cti.m_colObj->hasContactResponse()) {
++			btRigidBody* tmpRigid = btRigidBody::upcast(cti.m_colObj);
++			const btVector3		va = tmpRigid ? tmpRigid->getVelocityInLocalPoint(c.m_c1)*dt : btVector3(0,0,0);
++			const btVector3		vb = c.m_node->m_x-c.m_node->m_q;	
++			const btVector3		vr = vb-va;
++			const btScalar		dn = btDot(vr, cti.m_normal);		
++			if(dn<=SIMD_EPSILON)
++			{
++				const btScalar		dp = btMin( (btDot(c.m_node->m_x, cti.m_normal) + cti.m_offset), mrg );
++				const btVector3		fv = vr - (cti.m_normal * dn);
++				// c0 is the impulse matrix, c3 is 1 - the friction coefficient or 0, c4 is the contact hardness coefficient
++				const btVector3		impulse = c.m_c0 * ( (vr - (fv * c.m_c3) + (cti.m_normal * (dp * c.m_c4))) * kst );
++				c.m_node->m_x -= impulse * c.m_c2;
++				if (tmpRigid)
++					tmpRigid->applyImpulse(impulse,c.m_c1);
++			}
+ 		}
+ 	}
+ }
diff --git a/extern/bullet2/patches/pvs_warning_fixes.patch b/extern/bullet2/patches/pvs_warning_fixes.patch
new file mode 100644
index 00000000000..5a3fe140454
--- /dev/null
+++ b/extern/bullet2/patches/pvs_warning_fixes.patch
@@ -0,0 +1,31 @@
+Index: extern/bullet2/src/BulletSoftBody/btSoftBodyConcaveCollisionAlgorithm.h
+===================================================================
+--- extern/bullet2/src/BulletSoftBody/btSoftBodyConcaveCollisionAlgorithm.h	(Revision 45907)
++++ extern/bullet2/src/BulletSoftBody/btSoftBodyConcaveCollisionAlgorithm.h	(Revision 45908)
+@@ -45,7 +45,9 @@
+ 	int	getTriangleIndex() const
+ 	{
+ 		// Get only the lower bits where the triangle index is stored
+-		return (m_PartIdTriangleIndex&~((~0)<<(31-MAX_NUM_PARTS_IN_BITS)));
++		unsigned int x = 0;
++		unsigned int y = (~(x&0))<<(31-MAX_NUM_PARTS_IN_BITS);
++		return (m_PartIdTriangleIndex&~(y));
+ 	}
+ 	int	getPartId() const
+ 	{
+Index: extern/bullet2/src/BulletCollision/BroadphaseCollision/btQuantizedBvh.h
+===================================================================
+--- extern/bullet2/src/BulletCollision/BroadphaseCollision/btQuantizedBvh.h	(Revision 45907)
++++ extern/bullet2/src/BulletCollision/BroadphaseCollision/btQuantizedBvh.h	(Revision 45908)
+@@ -78,8 +78,10 @@
+ 	int	getTriangleIndex() const
+ 	{
+ 		btAssert(isLeafNode());
++		unsigned int x=0;
++		unsigned int y = (~(x&0))<<(31-MAX_NUM_PARTS_IN_BITS);
+ 		// Get only the lower bits where the triangle index is stored
+-		return (m_escapeIndexOrTriangleIndex&~((~0)<<(31-MAX_NUM_PARTS_IN_BITS)));
++		return (m_escapeIndexOrTriangleIndex&~(y));
+ 	}
+ 	int	getPartId() const
+ 	{