bullet: Streamline bundling, remove extraneous src/ folder

Document version and how to extract sources in thirdparty/README.md.
Drop unnecessary CMake and Premake files.
Simplify SCsub, drop unused one.

1 files changed, 679 insertions, 0 deletions

diff --git a/thirdparty/bullet/BulletCollision/CollisionDispatch/btCollisionObject.h b/thirdparty/bullet/BulletCollision/CollisionDispatch/btCollisionObject.h
new file mode 100644
index 0000000000..fec831bffc
--- /dev/null
+++ b/thirdparty/bullet/BulletCollision/CollisionDispatch/btCollisionObject.h
@@ -0,0 +1,679 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+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.
+*/
+
+#ifndef BT_COLLISION_OBJECT_H
+#define BT_COLLISION_OBJECT_H
+
+#include "LinearMath/btTransform.h"
+
+//island management, m_activationState1
+#define ACTIVE_TAG 1
+#define ISLAND_SLEEPING 2
+#define WANTS_DEACTIVATION 3
+#define DISABLE_DEACTIVATION 4
+#define DISABLE_SIMULATION 5
+
+struct	btBroadphaseProxy;
+class	btCollisionShape;
+struct btCollisionShapeData;
+#include "LinearMath/btMotionState.h"
+#include "LinearMath/btAlignedAllocator.h"
+#include "LinearMath/btAlignedObjectArray.h"
+
+typedef btAlignedObjectArray<class btCollisionObject*> btCollisionObjectArray;
+
+#ifdef BT_USE_DOUBLE_PRECISION
+#define btCollisionObjectData btCollisionObjectDoubleData
+#define btCollisionObjectDataName "btCollisionObjectDoubleData"
+#else
+#define btCollisionObjectData btCollisionObjectFloatData
+#define btCollisionObjectDataName "btCollisionObjectFloatData"
+#endif
+
+
+/// btCollisionObject can be used to manage collision detection objects. 
+/// btCollisionObject maintains all information that is needed for a collision detection: Shape, Transform and AABB proxy.
+/// They can be added to the btCollisionWorld.
+ATTRIBUTE_ALIGNED16(class)	btCollisionObject
+{
+
+protected:
+
+	btTransform	m_worldTransform;
+
+	///m_interpolationWorldTransform is used for CCD and interpolation
+	///it can be either previous or future (predicted) transform
+	btTransform	m_interpolationWorldTransform;
+	//those two are experimental: just added for bullet time effect, so you can still apply impulses (directly modifying velocities) 
+	//without destroying the continuous interpolated motion (which uses this interpolation velocities)
+	btVector3	m_interpolationLinearVelocity;
+	btVector3	m_interpolationAngularVelocity;
+	
+	btVector3	m_anisotropicFriction;
+	int			m_hasAnisotropicFriction;
+	btScalar	m_contactProcessingThreshold;	
+
+	btBroadphaseProxy*		m_broadphaseHandle;
+	btCollisionShape*		m_collisionShape;
+	///m_extensionPointer is used by some internal low-level Bullet extensions.
+	void*					m_extensionPointer;
+	
+	///m_rootCollisionShape is temporarily used to store the original collision shape
+	///The m_collisionShape might be temporarily replaced by a child collision shape during collision detection purposes
+	///If it is NULL, the m_collisionShape is not temporarily replaced.
+	btCollisionShape*		m_rootCollisionShape;
+
+	int				m_collisionFlags;
+
+	int				m_islandTag1;
+	int				m_companionId;
+    int             m_worldArrayIndex;  // index of object in world's collisionObjects array
+
+	mutable int				m_activationState1;
+	mutable btScalar			m_deactivationTime;
+
+	btScalar		m_friction;
+	btScalar		m_restitution;
+	btScalar		m_rollingFriction;//torsional friction orthogonal to contact normal (useful to stop spheres rolling forever)
+    btScalar        m_spinningFriction; // torsional friction around the contact normal (useful for grasping)
+	btScalar		m_contactDamping;
+	btScalar		m_contactStiffness;
+	
+	
+
+	///m_internalType is reserved to distinguish Bullet's btCollisionObject, btRigidBody, btSoftBody, btGhostObject etc.
+	///do not assign your own m_internalType unless you write a new dynamics object class.
+	int				m_internalType;
+
+	///users can point to their objects, m_userPointer is not used by Bullet, see setUserPointer/getUserPointer
+
+	void*			m_userObjectPointer;
+
+	int				m_userIndex2;
+	
+    int	m_userIndex;
+
+	///time of impact calculation
+	btScalar		m_hitFraction; 
+	
+	///Swept sphere radius (0.0 by default), see btConvexConvexAlgorithm::
+	btScalar		m_ccdSweptSphereRadius;
+
+	/// Don't do continuous collision detection if the motion (in one step) is less then m_ccdMotionThreshold
+	btScalar		m_ccdMotionThreshold;
+	
+	/// If some object should have elaborate collision filtering by sub-classes
+	int			m_checkCollideWith;
+
+	btAlignedObjectArray<const btCollisionObject*> m_objectsWithoutCollisionCheck;
+
+	///internal update revision number. It will be increased when the object changes. This allows some subsystems to perform lazy evaluation.
+	int			m_updateRevision;
+
+	btVector3	m_customDebugColorRGB;
+
+public:
+
+	BT_DECLARE_ALIGNED_ALLOCATOR();
+
+	enum CollisionFlags
+	{
+		CF_STATIC_OBJECT= 1,
+		CF_KINEMATIC_OBJECT= 2,
+		CF_NO_CONTACT_RESPONSE = 4,
+		CF_CUSTOM_MATERIAL_CALLBACK = 8,//this allows per-triangle material (friction/restitution)
+		CF_CHARACTER_OBJECT = 16,
+		CF_DISABLE_VISUALIZE_OBJECT = 32, //disable debug drawing
+		CF_DISABLE_SPU_COLLISION_PROCESSING = 64,//disable parallel/SPU processing
+		CF_HAS_CONTACT_STIFFNESS_DAMPING = 128,
+		CF_HAS_CUSTOM_DEBUG_RENDERING_COLOR = 256,
+		CF_HAS_FRICTION_ANCHOR = 512,
+		CF_HAS_COLLISION_SOUND_TRIGGER = 1024
+	};
+
+	enum	CollisionObjectTypes
+	{
+		CO_COLLISION_OBJECT =1,
+		CO_RIGID_BODY=2,
+		///CO_GHOST_OBJECT keeps track of all objects overlapping its AABB and that pass its collision filter
+		///It is useful for collision sensors, explosion objects, character controller etc.
+		CO_GHOST_OBJECT=4,
+		CO_SOFT_BODY=8,
+		CO_HF_FLUID=16,
+		CO_USER_TYPE=32,
+		CO_FEATHERSTONE_LINK=64
+	};
+
+	enum AnisotropicFrictionFlags
+	{
+		CF_ANISOTROPIC_FRICTION_DISABLED=0,
+		CF_ANISOTROPIC_FRICTION = 1,
+		CF_ANISOTROPIC_ROLLING_FRICTION = 2
+	};
+
+	SIMD_FORCE_INLINE bool mergesSimulationIslands() const
+	{
+		///static objects, kinematic and object without contact response don't merge islands
+		return  ((m_collisionFlags & (CF_STATIC_OBJECT | CF_KINEMATIC_OBJECT | CF_NO_CONTACT_RESPONSE) )==0);
+	}
+
+	const btVector3& getAnisotropicFriction() const
+	{
+		return m_anisotropicFriction;
+	}
+	void	setAnisotropicFriction(const btVector3& anisotropicFriction, int frictionMode = CF_ANISOTROPIC_FRICTION)
+	{
+		m_anisotropicFriction = anisotropicFriction;
+		bool isUnity = (anisotropicFriction[0]!=1.f) || (anisotropicFriction[1]!=1.f) || (anisotropicFriction[2]!=1.f);
+		m_hasAnisotropicFriction = isUnity?frictionMode : 0;
+	}
+	bool	hasAnisotropicFriction(int frictionMode = CF_ANISOTROPIC_FRICTION) const
+	{
+		return (m_hasAnisotropicFriction&frictionMode)!=0;
+	}
+
+	///the constraint solver can discard solving contacts, if the distance is above this threshold. 0 by default.
+	///Note that using contacts with positive distance can improve stability. It increases, however, the chance of colliding with degerate contacts, such as 'interior' triangle edges
+	void	setContactProcessingThreshold( btScalar contactProcessingThreshold)
+	{
+		m_contactProcessingThreshold = contactProcessingThreshold;
+	}
+	btScalar	getContactProcessingThreshold() const
+	{
+		return m_contactProcessingThreshold;
+	}
+
+	SIMD_FORCE_INLINE bool		isStaticObject() const {
+		return (m_collisionFlags & CF_STATIC_OBJECT) != 0;
+	}
+
+	SIMD_FORCE_INLINE bool		isKinematicObject() const
+	{
+		return (m_collisionFlags & CF_KINEMATIC_OBJECT) != 0;
+	}
+
+	SIMD_FORCE_INLINE bool		isStaticOrKinematicObject() const
+	{
+		return (m_collisionFlags & (CF_KINEMATIC_OBJECT | CF_STATIC_OBJECT)) != 0 ;
+	}
+
+	SIMD_FORCE_INLINE bool		hasContactResponse() const {
+		return (m_collisionFlags & CF_NO_CONTACT_RESPONSE)==0;
+	}
+
+	
+	btCollisionObject();
+
+	virtual ~btCollisionObject();
+
+	virtual void	setCollisionShape(btCollisionShape* collisionShape)
+	{
+		m_updateRevision++;
+		m_collisionShape = collisionShape;
+		m_rootCollisionShape = collisionShape;
+	}
+
+	SIMD_FORCE_INLINE const btCollisionShape*	getCollisionShape() const
+	{
+		return m_collisionShape;
+	}
+
+	SIMD_FORCE_INLINE btCollisionShape*	getCollisionShape()
+	{
+		return m_collisionShape;
+	}
+
+	void	setIgnoreCollisionCheck(const btCollisionObject* co, bool ignoreCollisionCheck)
+	{
+		if (ignoreCollisionCheck)
+		{
+			//We don't check for duplicates. Is it ok to leave that up to the user of this API?
+			//int index = m_objectsWithoutCollisionCheck.findLinearSearch(co);
+			//if (index == m_objectsWithoutCollisionCheck.size())
+			//{
+			m_objectsWithoutCollisionCheck.push_back(co);
+			//}
+		}
+		else
+		{
+			m_objectsWithoutCollisionCheck.remove(co);
+		}
+		m_checkCollideWith = m_objectsWithoutCollisionCheck.size() > 0;
+	}
+
+	virtual bool	checkCollideWithOverride(const btCollisionObject*  co) const
+	{
+		int index = m_objectsWithoutCollisionCheck.findLinearSearch(co);
+		if (index < m_objectsWithoutCollisionCheck.size())
+		{
+			return false;
+		}
+		return true;
+	}
+
+
+	
+
+	///Avoid using this internal API call, the extension pointer is used by some Bullet extensions. 
+	///If you need to store your own user pointer, use 'setUserPointer/getUserPointer' instead.
+	void*		internalGetExtensionPointer() const
+	{
+		return m_extensionPointer;
+	}
+	///Avoid using this internal API call, the extension pointer is used by some Bullet extensions
+	///If you need to store your own user pointer, use 'setUserPointer/getUserPointer' instead.
+	void	internalSetExtensionPointer(void* pointer)
+	{
+		m_extensionPointer = pointer;
+	}
+
+	SIMD_FORCE_INLINE	int	getActivationState() const { return m_activationState1;}
+	
+	void setActivationState(int newState) const;
+
+	void	setDeactivationTime(btScalar time)
+	{
+		m_deactivationTime = time;
+	}
+	btScalar	getDeactivationTime() const
+	{
+		return m_deactivationTime;
+	}
+
+	void forceActivationState(int newState) const;
+
+	void	activate(bool forceActivation = false) const;
+
+	SIMD_FORCE_INLINE bool isActive() const
+	{
+		return ((getActivationState() != ISLAND_SLEEPING) && (getActivationState() != DISABLE_SIMULATION));
+	}
+
+	void	setRestitution(btScalar rest)
+	{
+		m_updateRevision++;
+		m_restitution = rest;
+	}
+	btScalar	getRestitution() const
+	{
+		return m_restitution;
+	}
+	void	setFriction(btScalar frict)
+	{
+		m_updateRevision++;
+		m_friction = frict;
+	}
+	btScalar	getFriction() const
+	{
+		return m_friction;
+	}
+
+	void	setRollingFriction(btScalar frict)
+	{
+		m_updateRevision++;
+		m_rollingFriction = frict;
+	}
+	btScalar	getRollingFriction() const
+	{
+		return m_rollingFriction;
+	}
+    void	setSpinningFriction(btScalar frict)
+    {
+        m_updateRevision++;
+        m_spinningFriction = frict;
+    }
+    btScalar	getSpinningFriction() const
+    {
+        return m_spinningFriction;
+    }
+    void	setContactStiffnessAndDamping(btScalar stiffness, btScalar damping)
+	{
+		m_updateRevision++;
+		m_contactStiffness = stiffness;
+		m_contactDamping = damping;
+		
+		m_collisionFlags |=CF_HAS_CONTACT_STIFFNESS_DAMPING;
+		
+        //avoid divisions by zero...
+		if (m_contactStiffness< SIMD_EPSILON)
+        {
+            m_contactStiffness = SIMD_EPSILON;
+        }
+	}
+	
+	btScalar	getContactStiffness() const
+	{
+		return m_contactStiffness;
+	}
+	
+	btScalar	getContactDamping() const
+	{
+		return m_contactDamping;
+	}
+    
+	///reserved for Bullet internal usage
+	int	getInternalType() const
+	{
+		return m_internalType;
+	}
+
+	btTransform&	getWorldTransform()
+	{
+		return m_worldTransform;
+	}
+
+	const btTransform&	getWorldTransform() const
+	{
+		return m_worldTransform;
+	}
+
+	void	setWorldTransform(const btTransform& worldTrans)
+	{
+		m_updateRevision++;
+		m_worldTransform = worldTrans;
+	}
+
+
+	SIMD_FORCE_INLINE btBroadphaseProxy*	getBroadphaseHandle()
+	{
+		return m_broadphaseHandle;
+	}
+
+	SIMD_FORCE_INLINE const btBroadphaseProxy*	getBroadphaseHandle() const
+	{
+		return m_broadphaseHandle;
+	}
+
+	void	setBroadphaseHandle(btBroadphaseProxy* handle)
+	{
+		m_broadphaseHandle = handle;
+	}
+
+
+	const btTransform&	getInterpolationWorldTransform() const
+	{
+		return m_interpolationWorldTransform;
+	}
+
+	btTransform&	getInterpolationWorldTransform()
+	{
+		return m_interpolationWorldTransform;
+	}
+
+	void	setInterpolationWorldTransform(const btTransform&	trans)
+	{
+		m_updateRevision++;
+		m_interpolationWorldTransform = trans;
+	}
+
+	void	setInterpolationLinearVelocity(const btVector3& linvel)
+	{
+		m_updateRevision++;
+		m_interpolationLinearVelocity = linvel;
+	}
+
+	void	setInterpolationAngularVelocity(const btVector3& angvel)
+	{
+		m_updateRevision++;
+		m_interpolationAngularVelocity = angvel;
+	}
+
+	const btVector3&	getInterpolationLinearVelocity() const
+	{
+		return m_interpolationLinearVelocity;
+	}
+
+	const btVector3&	getInterpolationAngularVelocity() const
+	{
+		return m_interpolationAngularVelocity;
+	}
+
+	SIMD_FORCE_INLINE int getIslandTag() const
+	{
+		return	m_islandTag1;
+	}
+
+	void	setIslandTag(int tag)
+	{
+		m_islandTag1 = tag;
+	}
+
+	SIMD_FORCE_INLINE int getCompanionId() const
+	{
+		return	m_companionId;
+	}
+
+	void	setCompanionId(int id)
+	{
+		m_companionId = id;
+	}
+
+    SIMD_FORCE_INLINE int getWorldArrayIndex() const
+    {
+        return	m_worldArrayIndex;
+    }
+
+    // only should be called by CollisionWorld
+    void setWorldArrayIndex(int ix)
+    {
+        m_worldArrayIndex = ix;
+    }
+
+    SIMD_FORCE_INLINE btScalar			getHitFraction() const
+	{
+		return m_hitFraction; 
+	}
+
+	void	setHitFraction(btScalar hitFraction)
+	{
+		m_hitFraction = hitFraction;
+	}
+
+	
+	SIMD_FORCE_INLINE int	getCollisionFlags() const
+	{
+		return m_collisionFlags;
+	}
+
+	void	setCollisionFlags(int flags)
+	{
+		m_collisionFlags = flags;
+	}
+	
+	///Swept sphere radius (0.0 by default), see btConvexConvexAlgorithm::
+	btScalar			getCcdSweptSphereRadius() const
+	{
+		return m_ccdSweptSphereRadius;
+	}
+
+	///Swept sphere radius (0.0 by default), see btConvexConvexAlgorithm::
+	void	setCcdSweptSphereRadius(btScalar radius)
+	{
+		m_ccdSweptSphereRadius = radius;
+	}
+
+	btScalar 	getCcdMotionThreshold() const
+	{
+		return m_ccdMotionThreshold;
+	}
+
+	btScalar 	getCcdSquareMotionThreshold() const
+	{
+		return m_ccdMotionThreshold*m_ccdMotionThreshold;
+	}
+
+
+
+	/// Don't do continuous collision detection if the motion (in one step) is less then m_ccdMotionThreshold
+	void	setCcdMotionThreshold(btScalar ccdMotionThreshold)
+	{
+		m_ccdMotionThreshold = ccdMotionThreshold;
+	}
+
+	///users can point to their objects, userPointer is not used by Bullet
+	void*	getUserPointer() const
+	{
+		return m_userObjectPointer;
+	}
+
+	int	getUserIndex() const
+	{
+		return m_userIndex;
+	}
+	
+	int	getUserIndex2() const
+	{
+		return m_userIndex2;
+	}
+	
+	///users can point to their objects, userPointer is not used by Bullet
+	void	setUserPointer(void* userPointer)
+	{
+		m_userObjectPointer = userPointer;
+	}
+
+	///users can point to their objects, userPointer is not used by Bullet
+	void	setUserIndex(int index)
+	{
+		m_userIndex = index;
+	}
+	
+	void	setUserIndex2(int index)
+	{
+		m_userIndex2 = index;
+	}
+
+	int	getUpdateRevisionInternal() const
+	{
+		return m_updateRevision;
+	}
+
+	void	setCustomDebugColor(const btVector3& colorRGB)
+	{
+		m_customDebugColorRGB = colorRGB;
+		m_collisionFlags |= CF_HAS_CUSTOM_DEBUG_RENDERING_COLOR;
+	}
+
+	void	removeCustomDebugColor()
+	{
+		m_collisionFlags &= ~CF_HAS_CUSTOM_DEBUG_RENDERING_COLOR;
+	}
+
+	bool getCustomDebugColor(btVector3& colorRGB) const
+	{
+		bool hasCustomColor = (0!=(m_collisionFlags&CF_HAS_CUSTOM_DEBUG_RENDERING_COLOR));
+		if (hasCustomColor)
+		{
+			colorRGB = m_customDebugColorRGB;
+		}
+		return hasCustomColor;
+	}
+
+	inline bool checkCollideWith(const btCollisionObject* co) const
+	{
+		if (m_checkCollideWith)
+			return checkCollideWithOverride(co);
+
+		return true;
+	}
+
+	virtual	int	calculateSerializeBufferSize()	const;
+
+	///fills the dataBuffer and returns the struct name (and 0 on failure)
+	virtual	const char*	serialize(void* dataBuffer, class btSerializer* serializer) const;
+
+	virtual void serializeSingleObject(class btSerializer* serializer) const;
+
+};
+
+///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64
+struct	btCollisionObjectDoubleData
+{
+	void					*m_broadphaseHandle;
+	void					*m_collisionShape;
+	btCollisionShapeData	*m_rootCollisionShape;
+	char					*m_name;
+
+	btTransformDoubleData	m_worldTransform;
+	btTransformDoubleData	m_interpolationWorldTransform;
+	btVector3DoubleData		m_interpolationLinearVelocity;
+	btVector3DoubleData		m_interpolationAngularVelocity;
+	btVector3DoubleData		m_anisotropicFriction;
+	double					m_contactProcessingThreshold;	
+	double					m_deactivationTime;
+	double					m_friction;
+	double					m_rollingFriction;
+	double                  m_contactDamping;
+	double                  m_contactStiffness;
+	double					m_restitution;
+	double					m_hitFraction; 
+	double					m_ccdSweptSphereRadius;
+	double					m_ccdMotionThreshold;
+
+	int						m_hasAnisotropicFriction;
+	int						m_collisionFlags;
+	int						m_islandTag1;
+	int						m_companionId;
+	int						m_activationState1;
+	int						m_internalType;
+	int						m_checkCollideWith;
+
+	char	m_padding[4];
+};
+
+///do not change those serialization structures, it requires an updated sBulletDNAstr/sBulletDNAstr64
+struct	btCollisionObjectFloatData
+{
+	void					*m_broadphaseHandle;
+	void					*m_collisionShape;
+	btCollisionShapeData	*m_rootCollisionShape;
+	char					*m_name;
+
+	btTransformFloatData	m_worldTransform;
+	btTransformFloatData	m_interpolationWorldTransform;
+	btVector3FloatData		m_interpolationLinearVelocity;
+	btVector3FloatData		m_interpolationAngularVelocity;
+	btVector3FloatData		m_anisotropicFriction;
+	float					m_contactProcessingThreshold;	
+	float					m_deactivationTime;
+	float					m_friction;
+	float					m_rollingFriction;
+    float                   m_contactDamping;
+    float                   m_contactStiffness;
+	float					m_restitution;
+	float					m_hitFraction; 
+	float					m_ccdSweptSphereRadius;
+	float					m_ccdMotionThreshold;
+
+	int						m_hasAnisotropicFriction;
+	int						m_collisionFlags;
+	int						m_islandTag1;
+	int						m_companionId;
+	int						m_activationState1;
+	int						m_internalType;
+	int						m_checkCollideWith;
+	char					m_padding[4];
+};
+
+
+
+SIMD_FORCE_INLINE	int	btCollisionObject::calculateSerializeBufferSize() const
+{
+	return sizeof(btCollisionObjectData);
+}
+
+
+
+#endif //BT_COLLISION_OBJECT_H