Avoid conversions when possible.

Former-commit-id: 8cd3903

Author: slembcke

cocos2d/CCPhysicsNode.m

@@ -454,12 +454,13 @@ -(void)setDebugDraw:(BOOL)debugDraw
 static void
 DrawPolygon(int count, const cpVect *verts, cpFloat r, cpSpaceDebugColor outline, cpSpaceDebugColor fill, CCDrawNode *draw)
 {
-	// TODO avoid copy on 32bit?
-	
+#if !CP_USE_CGTYPES
 	CGPoint _verts[count];
 	for(int i=0; i<count; i++) _verts[i] = CPV_TO_CCP(verts[i]);
-	
 	[draw drawPolyWithVerts:_verts count:count fillColor:ToCCColor(fill) borderWidth:1.0 borderColor:ToCCColor(outline)];
+#else
+	[draw drawPolyWithVerts:verts count:count fillColor:ToCCColor(fill) borderWidth:1.0 borderColor:ToCCColor(outline)];
+#endif
 }
 
 static void

cocos2d/CCPhysicsShape.m

@@ -329,9 +329,13 @@ -(id)initWithPolygonFromPoints:(CGPoint *)points count:(NSUInteger)count cornerR
 		_points = calloc(count, sizeof(cpVect));
 		_count = count;
 
+#if !CP_USE_CGTYPES
 		for(NSUInteger i=0; i<count; i++){
 			_points[i] = CCP_TO_CPV(points[i]);
 		}
+#else
+		memcpy(_points, points, count*sizeof(CGPoint));
+#endif
 
 		_shape = [ChipmunkPolyShape polyWithBody:nil count:(int)_count verts:_points transform:cpTransformIdentity radius:_radius];