Avoid using SSE in API when BT_USE_SSE_IN_API is not defined

Fixes Issue 683.

src/BulletCollision/CollisionShapes/btConvexHullShape.cpp

@@ -13,6 +13,10 @@ subject to the following restrictions:
 3. This notice may not be removed or altered from any source distribution.
 */
 
+#if defined (_WIN32) || defined (__i386__)
+#define BT_USE_SSE_IN_API
+#endif
+
 #include "btConvexHullShape.h"
 #include "BulletCollision/CollisionShapes/btCollisionMargin.h"
 
@@ -45,10 +49,11 @@ void btConvexHullShape::setLocalScaling(const btVector3& scaling)
 	recalcLocalAabb();
 }
 
-void btConvexHullShape::addPoint(const btVector3& point)
+void btConvexHullShape::addPoint(const btVector3& point, bool recalculateLocalAabb)
 {
 	m_unscaledPoints.push_back(point);
-	recalcLocalAabb();
+	if (recalculateLocalAabb)
+		recalcLocalAabb();
 
 }
 

src/BulletCollision/CollisionShapes/btConvexHullShape.h

@@ -36,7 +36,7 @@ public:
 	///btConvexHullShape make an internal copy of the points.
 	btConvexHullShape(const btScalar* points=0,int numPoints=0, int stride=sizeof(btVector3));
 
-	void addPoint(const btVector3& point);
+	void addPoint(const btVector3& point, bool recalculateLocalAabb = true);
 
 	
 	btVector3* getUnscaledPoints()

src/BulletCollision/CollisionShapes/btConvexShape.cpp

@@ -13,6 +13,10 @@ subject to the following restrictions:
 3. This notice may not be removed or altered from any source distribution.
 */
 
+#if defined (_WIN32) || defined (__i386__)
+#define BT_USE_SSE_IN_API
+#endif
+
 #include "btConvexShape.h"
 #include "btTriangleShape.h"
 #include "btSphereShape.h"

src/BulletCollision/CollisionShapes/btMultiSphereShape.cpp

@@ -13,7 +13,9 @@ subject to the following restrictions:
 3. This notice may not be removed or altered from any source distribution.
 */
 
-
+#if defined (_WIN32) || defined (__i386__)
+#define BT_USE_SSE_IN_API
+#endif
 
 #include "btMultiSphereShape.h"
 #include "BulletCollision/CollisionShapes/btCollisionMargin.h"
@@ -40,7 +42,7 @@ btMultiSphereShape::btMultiSphereShape (const btVector3* positions,const btScala
 }
 
 #ifndef MIN
-    #define MIN( _a, _b)    ((_a) < (_b) ? (_a) : (_b))
+	#define MIN( _a, _b)    ((_a) < (_b) ? (_a) : (_b))
 #endif
  btVector3	btMultiSphereShape::localGetSupportingVertexWithoutMargin(const btVector3& vec0)const
 {
@@ -67,10 +69,10 @@ btMultiSphereShape::btMultiSphereShape (const btVector3* positions,const btScala
 	const btScalar* rad = &m_radiArray[0];
 	int numSpheres = m_localPositionArray.size();
 
-    for( int k = 0; k < numSpheres; k+= 128 )
-    {
-        btVector3 temp[128];
-        int inner_count = MIN( numSpheres - k, 128 );
+	for( int k = 0; k < numSpheres; k+= 128 )
+	{
+		btVector3 temp[128];
+		int inner_count = MIN( numSpheres - k, 128 );
         for( long i = 0; i < inner_count; i++ )
         {
             temp[i] = (*pos) +vec*m_localScaling*(*rad) - vec * getMargin();

src/BulletCollision/CollisionShapes/btPolyhedralConvexShape.cpp

@@ -12,6 +12,9 @@ subject to the following restrictions:
 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.
 */
+#if defined (_WIN32) || defined (__i386__)
+#define BT_USE_SSE_IN_API
+#endif
 
 #include "BulletCollision/CollisionShapes/btPolyhedralConvexShape.h"
 #include "btConvexPolyhedron.h"