Remove unused Bullet module and thirdparty code

It has been disabled in `master` since one year (#45852) and our plan
is for Bullet, and possibly other thirdparty physics engines, to be
implemented via GDExtension so that they can be selected by the users
who need them.

1 files changed, 0 insertions, 413 deletions

diff --git a/thirdparty/bullet/BulletCollision/CollisionDispatch/btCompoundCompoundCollisionAlgorithm.cpp b/thirdparty/bullet/BulletCollision/CollisionDispatch/btCompoundCompoundCollisionAlgorithm.cpp
deleted file mode 100644
index 044b60dbb1..0000000000
--- a/thirdparty/bullet/BulletCollision/CollisionDispatch/btCompoundCompoundCollisionAlgorithm.cpp
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
-Bullet Continuous Collision Detection and Physics Library
-Copyright (c) 2003-2013 Erwin Coumans  http://bulletphysics.org
-
-This software is provided 'as-is', without any express or implied warranty.
-In no event will the authors be held liable for any damages arising from the use of this software.
-Permission is granted to anyone to use this software for any purpose, 
-including commercial applications, and to alter it and redistribute it freely, 
-subject to the following restrictions:
-
-1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
-2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
-3. This notice may not be removed or altered from any source distribution.
-
-*/
-
-#include "btCompoundCompoundCollisionAlgorithm.h"
-#include "LinearMath/btQuickprof.h"
-#include "BulletCollision/CollisionDispatch/btCollisionObject.h"
-#include "BulletCollision/CollisionShapes/btCompoundShape.h"
-#include "BulletCollision/BroadphaseCollision/btDbvt.h"
-#include "LinearMath/btIDebugDraw.h"
-#include "LinearMath/btAabbUtil2.h"
-#include "BulletCollision/CollisionDispatch/btManifoldResult.h"
-#include "BulletCollision/CollisionDispatch/btCollisionObjectWrapper.h"
-
-//USE_LOCAL_STACK will avoid most (often all) dynamic memory allocations due to resizing in processCollision and MycollideTT
-#define USE_LOCAL_STACK 1
-
-btShapePairCallback gCompoundCompoundChildShapePairCallback = 0;
-
-btCompoundCompoundCollisionAlgorithm::btCompoundCompoundCollisionAlgorithm(const btCollisionAlgorithmConstructionInfo& ci, const btCollisionObjectWrapper* body0Wrap, const btCollisionObjectWrapper* body1Wrap, bool isSwapped)
-	: btCompoundCollisionAlgorithm(ci, body0Wrap, body1Wrap, isSwapped)
-{
-	void* ptr = btAlignedAlloc(sizeof(btHashedSimplePairCache), 16);
-	m_childCollisionAlgorithmCache = new (ptr) btHashedSimplePairCache();
-
-	const btCollisionObjectWrapper* col0ObjWrap = body0Wrap;
-	btAssert(col0ObjWrap->getCollisionShape()->isCompound());
-
-	const btCollisionObjectWrapper* col1ObjWrap = body1Wrap;
-	btAssert(col1ObjWrap->getCollisionShape()->isCompound());
-
-	const btCompoundShape* compoundShape0 = static_cast<const btCompoundShape*>(col0ObjWrap->getCollisionShape());
-	m_compoundShapeRevision0 = compoundShape0->getUpdateRevision();
-
-	const btCompoundShape* compoundShape1 = static_cast<const btCompoundShape*>(col1ObjWrap->getCollisionShape());
-	m_compoundShapeRevision1 = compoundShape1->getUpdateRevision();
-}
-
-btCompoundCompoundCollisionAlgorithm::~btCompoundCompoundCollisionAlgorithm()
-{
-	removeChildAlgorithms();
-	m_childCollisionAlgorithmCache->~btHashedSimplePairCache();
-	btAlignedFree(m_childCollisionAlgorithmCache);
-}
-
-void btCompoundCompoundCollisionAlgorithm::getAllContactManifolds(btManifoldArray& manifoldArray)
-{
-	int i;
-	btSimplePairArray& pairs = m_childCollisionAlgorithmCache->getOverlappingPairArray();
-	for (i = 0; i < pairs.size(); i++)
-	{
-		if (pairs[i].m_userPointer)
-		{
-			((btCollisionAlgorithm*)pairs[i].m_userPointer)->getAllContactManifolds(manifoldArray);
-		}
-	}
-}
-
-void btCompoundCompoundCollisionAlgorithm::removeChildAlgorithms()
-{
-	btSimplePairArray& pairs = m_childCollisionAlgorithmCache->getOverlappingPairArray();
-
-	int numChildren = pairs.size();
-	int i;
-	for (i = 0; i < numChildren; i++)
-	{
-		if (pairs[i].m_userPointer)
-		{
-			btCollisionAlgorithm* algo = (btCollisionAlgorithm*)pairs[i].m_userPointer;
-			algo->~btCollisionAlgorithm();
-			m_dispatcher->freeCollisionAlgorithm(algo);
-		}
-	}
-	m_childCollisionAlgorithmCache->removeAllPairs();
-}
-
-struct btCompoundCompoundLeafCallback : btDbvt::ICollide
-{
-	int m_numOverlapPairs;
-
-	const btCollisionObjectWrapper* m_compound0ColObjWrap;
-	const btCollisionObjectWrapper* m_compound1ColObjWrap;
-	btDispatcher* m_dispatcher;
-	const btDispatcherInfo& m_dispatchInfo;
-	btManifoldResult* m_resultOut;
-
-	class btHashedSimplePairCache* m_childCollisionAlgorithmCache;
-
-	btPersistentManifold* m_sharedManifold;
-
-	btCompoundCompoundLeafCallback(const btCollisionObjectWrapper* compound1ObjWrap,
-								   const btCollisionObjectWrapper* compound0ObjWrap,
-								   btDispatcher* dispatcher,
-								   const btDispatcherInfo& dispatchInfo,
-								   btManifoldResult* resultOut,
-								   btHashedSimplePairCache* childAlgorithmsCache,
-								   btPersistentManifold* sharedManifold)
-		: m_numOverlapPairs(0), m_compound0ColObjWrap(compound1ObjWrap), m_compound1ColObjWrap(compound0ObjWrap), m_dispatcher(dispatcher), m_dispatchInfo(dispatchInfo), m_resultOut(resultOut), m_childCollisionAlgorithmCache(childAlgorithmsCache), m_sharedManifold(sharedManifold)
-	{
-	}
-
-	void Process(const btDbvtNode* leaf0, const btDbvtNode* leaf1)
-	{
-		BT_PROFILE("btCompoundCompoundLeafCallback::Process");
-		m_numOverlapPairs++;
-
-		int childIndex0 = leaf0->dataAsInt;
-		int childIndex1 = leaf1->dataAsInt;
-
-		btAssert(childIndex0 >= 0);
-		btAssert(childIndex1 >= 0);
-
-		const btCompoundShape* compoundShape0 = static_cast<const btCompoundShape*>(m_compound0ColObjWrap->getCollisionShape());
-		btAssert(childIndex0 < compoundShape0->getNumChildShapes());
-
-		const btCompoundShape* compoundShape1 = static_cast<const btCompoundShape*>(m_compound1ColObjWrap->getCollisionShape());
-		btAssert(childIndex1 < compoundShape1->getNumChildShapes());
-
-		const btCollisionShape* childShape0 = compoundShape0->getChildShape(childIndex0);
-		const btCollisionShape* childShape1 = compoundShape1->getChildShape(childIndex1);
-
-		//backup
-		btTransform orgTrans0 = m_compound0ColObjWrap->getWorldTransform();
-		const btTransform& childTrans0 = compoundShape0->getChildTransform(childIndex0);
-		btTransform newChildWorldTrans0 = orgTrans0 * childTrans0;
-
-		btTransform orgTrans1 = m_compound1ColObjWrap->getWorldTransform();
-		const btTransform& childTrans1 = compoundShape1->getChildTransform(childIndex1);
-		btTransform newChildWorldTrans1 = orgTrans1 * childTrans1;
-
-		//perform an AABB check first
-		btVector3 aabbMin0, aabbMax0, aabbMin1, aabbMax1;
-		childShape0->getAabb(newChildWorldTrans0, aabbMin0, aabbMax0);
-		childShape1->getAabb(newChildWorldTrans1, aabbMin1, aabbMax1);
-
-		btVector3 thresholdVec(m_resultOut->m_closestPointDistanceThreshold, m_resultOut->m_closestPointDistanceThreshold, m_resultOut->m_closestPointDistanceThreshold);
-
-		aabbMin0 -= thresholdVec;
-		aabbMax0 += thresholdVec;
-
-		if (gCompoundCompoundChildShapePairCallback)
-		{
-			if (!gCompoundCompoundChildShapePairCallback(childShape0, childShape1))
-				return;
-		}
-
-		if (TestAabbAgainstAabb2(aabbMin0, aabbMax0, aabbMin1, aabbMax1))
-		{
-			btCollisionObjectWrapper compoundWrap0(this->m_compound0ColObjWrap, childShape0, m_compound0ColObjWrap->getCollisionObject(), newChildWorldTrans0, -1, childIndex0);
-			btCollisionObjectWrapper compoundWrap1(this->m_compound1ColObjWrap, childShape1, m_compound1ColObjWrap->getCollisionObject(), newChildWorldTrans1, -1, childIndex1);
-
-			btSimplePair* pair = m_childCollisionAlgorithmCache->findPair(childIndex0, childIndex1);
-			bool removePair = false;
-			btCollisionAlgorithm* colAlgo = 0;
-			if (m_resultOut->m_closestPointDistanceThreshold > 0)
-			{
-				colAlgo = m_dispatcher->findAlgorithm(&compoundWrap0, &compoundWrap1, 0, BT_CLOSEST_POINT_ALGORITHMS);
-				removePair = true;
-			}
-			else
-			{
-				if (pair)
-				{
-					colAlgo = (btCollisionAlgorithm*)pair->m_userPointer;
-				}
-				else
-				{
-					colAlgo = m_dispatcher->findAlgorithm(&compoundWrap0, &compoundWrap1, m_sharedManifold, BT_CONTACT_POINT_ALGORITHMS);
-					pair = m_childCollisionAlgorithmCache->addOverlappingPair(childIndex0, childIndex1);
-					btAssert(pair);
-					pair->m_userPointer = colAlgo;
-				}
-			}
-
-			btAssert(colAlgo);
-
-			const btCollisionObjectWrapper* tmpWrap0 = 0;
-			const btCollisionObjectWrapper* tmpWrap1 = 0;
-
-			tmpWrap0 = m_resultOut->getBody0Wrap();
-			tmpWrap1 = m_resultOut->getBody1Wrap();
-
-			m_resultOut->setBody0Wrap(&compoundWrap0);
-			m_resultOut->setBody1Wrap(&compoundWrap1);
-
-			m_resultOut->setShapeIdentifiersA(-1, childIndex0);
-			m_resultOut->setShapeIdentifiersB(-1, childIndex1);
-
-			colAlgo->processCollision(&compoundWrap0, &compoundWrap1, m_dispatchInfo, m_resultOut);
-
-			m_resultOut->setBody0Wrap(tmpWrap0);
-			m_resultOut->setBody1Wrap(tmpWrap1);
-
-			if (removePair)
-			{
-				colAlgo->~btCollisionAlgorithm();
-				m_dispatcher->freeCollisionAlgorithm(colAlgo);
-			}
-		}
-	}
-};
-
-static DBVT_INLINE bool MyIntersect(const btDbvtAabbMm& a,
-									const btDbvtAabbMm& b, const btTransform& xform, btScalar distanceThreshold)
-{
-	btVector3 newmin, newmax;
-	btTransformAabb(b.Mins(), b.Maxs(), 0.f, xform, newmin, newmax);
-	newmin -= btVector3(distanceThreshold, distanceThreshold, distanceThreshold);
-	newmax += btVector3(distanceThreshold, distanceThreshold, distanceThreshold);
-	btDbvtAabbMm newb = btDbvtAabbMm::FromMM(newmin, newmax);
-	return Intersect(a, newb);
-}
-
-static inline void MycollideTT(const btDbvtNode* root0,
-							   const btDbvtNode* root1,
-							   const btTransform& xform,
-							   btCompoundCompoundLeafCallback* callback, btScalar distanceThreshold)
-{
-	if (root0 && root1)
-	{
-		int depth = 1;
-		int treshold = btDbvt::DOUBLE_STACKSIZE - 4;
-		btAlignedObjectArray<btDbvt::sStkNN> stkStack;
-#ifdef USE_LOCAL_STACK
-		ATTRIBUTE_ALIGNED16(btDbvt::sStkNN localStack[btDbvt::DOUBLE_STACKSIZE]);
-		stkStack.initializeFromBuffer(&localStack, btDbvt::DOUBLE_STACKSIZE, btDbvt::DOUBLE_STACKSIZE);
-#else
-		stkStack.resize(btDbvt::DOUBLE_STACKSIZE);
-#endif
-		stkStack[0] = btDbvt::sStkNN(root0, root1);
-		do
-		{
-			btDbvt::sStkNN p = stkStack[--depth];
-			if (MyIntersect(p.a->volume, p.b->volume, xform, distanceThreshold))
-			{
-				if (depth > treshold)
-				{
-					stkStack.resize(stkStack.size() * 2);
-					treshold = stkStack.size() - 4;
-				}
-				if (p.a->isinternal())
-				{
-					if (p.b->isinternal())
-					{
-						stkStack[depth++] = btDbvt::sStkNN(p.a->childs[0], p.b->childs[0]);
-						stkStack[depth++] = btDbvt::sStkNN(p.a->childs[1], p.b->childs[0]);
-						stkStack[depth++] = btDbvt::sStkNN(p.a->childs[0], p.b->childs[1]);
-						stkStack[depth++] = btDbvt::sStkNN(p.a->childs[1], p.b->childs[1]);
-					}
-					else
-					{
-						stkStack[depth++] = btDbvt::sStkNN(p.a->childs[0], p.b);
-						stkStack[depth++] = btDbvt::sStkNN(p.a->childs[1], p.b);
-					}
-				}
-				else
-				{
-					if (p.b->isinternal())
-					{
-						stkStack[depth++] = btDbvt::sStkNN(p.a, p.b->childs[0]);
-						stkStack[depth++] = btDbvt::sStkNN(p.a, p.b->childs[1]);
-					}
-					else
-					{
-						callback->Process(p.a, p.b);
-					}
-				}
-			}
-		} while (depth);
-	}
-}
-
-void btCompoundCompoundCollisionAlgorithm::processCollision(const btCollisionObjectWrapper* body0Wrap, const btCollisionObjectWrapper* body1Wrap, const btDispatcherInfo& dispatchInfo, btManifoldResult* resultOut)
-{
-	const btCollisionObjectWrapper* col0ObjWrap = body0Wrap;
-	const btCollisionObjectWrapper* col1ObjWrap = body1Wrap;
-
-	btAssert(col0ObjWrap->getCollisionShape()->isCompound());
-	btAssert(col1ObjWrap->getCollisionShape()->isCompound());
-	const btCompoundShape* compoundShape0 = static_cast<const btCompoundShape*>(col0ObjWrap->getCollisionShape());
-	const btCompoundShape* compoundShape1 = static_cast<const btCompoundShape*>(col1ObjWrap->getCollisionShape());
-
-	const btDbvt* tree0 = compoundShape0->getDynamicAabbTree();
-	const btDbvt* tree1 = compoundShape1->getDynamicAabbTree();
-	if (!tree0 || !tree1)
-	{
-		return btCompoundCollisionAlgorithm::processCollision(body0Wrap, body1Wrap, dispatchInfo, resultOut);
-	}
-	///btCompoundShape might have changed:
-	////make sure the internal child collision algorithm caches are still valid
-	if ((compoundShape0->getUpdateRevision() != m_compoundShapeRevision0) || (compoundShape1->getUpdateRevision() != m_compoundShapeRevision1))
-	{
-		///clear all
-		removeChildAlgorithms();
-		m_compoundShapeRevision0 = compoundShape0->getUpdateRevision();
-		m_compoundShapeRevision1 = compoundShape1->getUpdateRevision();
-	}
-
-	///we need to refresh all contact manifolds
-	///note that we should actually recursively traverse all children, btCompoundShape can nested more then 1 level deep
-	///so we should add a 'refreshManifolds' in the btCollisionAlgorithm
-	{
-		int i;
-		btManifoldArray manifoldArray;
-#ifdef USE_LOCAL_STACK
-		btPersistentManifold localManifolds[4];
-		manifoldArray.initializeFromBuffer(&localManifolds, 0, 4);
-#endif
-		btSimplePairArray& pairs = m_childCollisionAlgorithmCache->getOverlappingPairArray();
-		for (i = 0; i < pairs.size(); i++)
-		{
-			if (pairs[i].m_userPointer)
-			{
-				btCollisionAlgorithm* algo = (btCollisionAlgorithm*)pairs[i].m_userPointer;
-				algo->getAllContactManifolds(manifoldArray);
-				for (int m = 0; m < manifoldArray.size(); m++)
-				{
-					if (manifoldArray[m]->getNumContacts())
-					{
-						resultOut->setPersistentManifold(manifoldArray[m]);
-						resultOut->refreshContactPoints();
-						resultOut->setPersistentManifold(0);
-					}
-				}
-				manifoldArray.resize(0);
-			}
-		}
-	}
-
-	btCompoundCompoundLeafCallback callback(col0ObjWrap, col1ObjWrap, this->m_dispatcher, dispatchInfo, resultOut, this->m_childCollisionAlgorithmCache, m_sharedManifold);
-
-	const btTransform xform = col0ObjWrap->getWorldTransform().inverse() * col1ObjWrap->getWorldTransform();
-	MycollideTT(tree0->m_root, tree1->m_root, xform, &callback, resultOut->m_closestPointDistanceThreshold);
-
-	//printf("#compound-compound child/leaf overlap =%d                      \r",callback.m_numOverlapPairs);
-
-	//remove non-overlapping child pairs
-
-	{
-		btAssert(m_removePairs.size() == 0);
-
-		//iterate over all children, perform an AABB check inside ProcessChildShape
-		btSimplePairArray& pairs = m_childCollisionAlgorithmCache->getOverlappingPairArray();
-
-		int i;
-		btManifoldArray manifoldArray;
-
-		btVector3 aabbMin0, aabbMax0, aabbMin1, aabbMax1;
-
-		for (i = 0; i < pairs.size(); i++)
-		{
-			if (pairs[i].m_userPointer)
-			{
-				btCollisionAlgorithm* algo = (btCollisionAlgorithm*)pairs[i].m_userPointer;
-
-				{
-					const btCollisionShape* childShape0 = 0;
-
-					btTransform newChildWorldTrans0;
-					childShape0 = compoundShape0->getChildShape(pairs[i].m_indexA);
-					const btTransform& childTrans0 = compoundShape0->getChildTransform(pairs[i].m_indexA);
-					newChildWorldTrans0 = col0ObjWrap->getWorldTransform() * childTrans0;
-					childShape0->getAabb(newChildWorldTrans0, aabbMin0, aabbMax0);
-				}
-				btVector3 thresholdVec(resultOut->m_closestPointDistanceThreshold, resultOut->m_closestPointDistanceThreshold, resultOut->m_closestPointDistanceThreshold);
-				aabbMin0 -= thresholdVec;
-				aabbMax0 += thresholdVec;
-				{
-					const btCollisionShape* childShape1 = 0;
-					btTransform newChildWorldTrans1;
-
-					childShape1 = compoundShape1->getChildShape(pairs[i].m_indexB);
-					const btTransform& childTrans1 = compoundShape1->getChildTransform(pairs[i].m_indexB);
-					newChildWorldTrans1 = col1ObjWrap->getWorldTransform() * childTrans1;
-					childShape1->getAabb(newChildWorldTrans1, aabbMin1, aabbMax1);
-				}
-
-				aabbMin1 -= thresholdVec;
-				aabbMax1 += thresholdVec;
-
-				if (!TestAabbAgainstAabb2(aabbMin0, aabbMax0, aabbMin1, aabbMax1))
-				{
-					algo->~btCollisionAlgorithm();
-					m_dispatcher->freeCollisionAlgorithm(algo);
-					m_removePairs.push_back(btSimplePair(pairs[i].m_indexA, pairs[i].m_indexB));
-				}
-			}
-		}
-		for (int i = 0; i < m_removePairs.size(); i++)
-		{
-			m_childCollisionAlgorithmCache->removeOverlappingPair(m_removePairs[i].m_indexA, m_removePairs[i].m_indexB);
-		}
-		m_removePairs.clear();
-	}
-}
-
-btScalar btCompoundCompoundCollisionAlgorithm::calculateTimeOfImpact(btCollisionObject* body0, btCollisionObject* body1, const btDispatcherInfo& dispatchInfo, btManifoldResult* resultOut)
-{
-	btAssert(0);
-	return 0.f;
-}