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Some performance improvements and fixes related to btVector3 being aligned on SPU.

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btQuantizedBvh has a version number, memory layout might be different now (due to aligned btVector3)
reorganized some data members of some classes, to reduce memory footprint
This commit is contained in:
erwin.coumans
2008-10-29 02:45:43 +00:00
parent aeb48644ee
commit 50930cec5c
11 changed files with 79 additions and 60 deletions
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45
src/BulletCollision/BroadphaseCollision/btQuantizedBvh.h
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@@ -158,41 +158,43 @@ typedef btAlignedObjectArray<btBvhSubtreeInfo> BvhSubtreeInfoArray;
///It is recommended to use quantization for better performance and lower memory requirements.
ATTRIBUTE_ALIGNED16(class) btQuantizedBvh
{
protected:
NodeArray m_leafNodes;
NodeArray m_contiguousNodes;
QuantizedNodeArray m_quantizedLeafNodes;
QuantizedNodeArray m_quantizedContiguousNodes;
int m_curNodeIndex;
//quantization data
bool m_useQuantization;
btVector3 m_bvhAabbMin;
btVector3 m_bvhAabbMax;
btVector3 m_bvhQuantization;
public:
BT_DECLARE_ALIGNED_ALLOCATOR();
enum btTraversalMode
{
TRAVERSAL_STACKLESS = 0,
TRAVERSAL_STACKLESS_CACHE_FRIENDLY,
TRAVERSAL_RECURSIVE
};
protected:
btTraversalMode m_traversalMode;
btVector3 m_bvhAabbMin;
btVector3 m_bvhAabbMax;
btVector3 m_bvhQuantization;
int m_bulletVersion; //for serialization versioning. It could also be used to detect endianess.
int m_curNodeIndex;
//quantization data
bool m_useQuantization;
NodeArray m_leafNodes;
NodeArray m_contiguousNodes;
QuantizedNodeArray m_quantizedLeafNodes;
QuantizedNodeArray m_quantizedContiguousNodes;
btTraversalMode m_traversalMode;
BvhSubtreeInfoArray m_SubtreeHeaders;
//This is only used for serialization so we don't have to add serialization directly to btAlignedObjectArray
int m_subtreeHeaderCount;
///two versions, one for quantized and normal nodes. This allows code-reuse while maintaining readability (no template/macro!)
///this might be refactored into a virtual, it is usually not calculated at run-time
@@ -332,6 +334,9 @@ protected:
void updateSubtreeHeaders(int leftChildNodexIndex,int rightChildNodexIndex);
public:
BT_DECLARE_ALIGNED_ALLOCATOR();
btQuantizedBvh();
virtual ~btQuantizedBvh();