PxsNphaseCommon.h

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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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#ifndef PXS_NPHASE_COMMON_H
#define PXS_NPHASE_COMMON_H
 
#include "foundation/PxSimpleTypes.h"
#include "foundation/PxAssert.h"
 
namespace physx
{
 
    struct PxsContactManagerBase
    {
        static const PxU32 NEW_CONTACT_MANAGER_MASK = 0x80000000;
        static const PxU32 MaxBucketBits = 6;
        static const PxU32 GPU_NP_OFFSET = 32;// GPU_BUCKET_ID::eCount;
 
        const PxU32                                 mBucketId;
 
        PxsContactManagerBase(const PxU32 bucketId) : mBucketId(bucketId)
        {
            PX_ASSERT(bucketId < (1 << MaxBucketBits));
        }
 
 
        PX_FORCE_INLINE PxU32 computeId(const PxU32 index) const { PX_ASSERT(index < PxU32(1 << (32 - (MaxBucketBits - 1)))); return (index << MaxBucketBits) | (mBucketId); }
        static PX_CUDA_CALLABLE PX_FORCE_INLINE PxU32 computeIndexFromId(const PxU32 id) { return id >> MaxBucketBits; }
        static PX_CUDA_CALLABLE PX_FORCE_INLINE PxU32 computeBucketIndexFromId(const PxU32 id) { return id & ((1 << MaxBucketBits) - 1); }
 
    private:
        PX_NOCOPY(PxsContactManagerBase)
    };
}
 
#endif