94 lines
3.8 KiB
C++
94 lines
3.8 KiB
C++
//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PX_PHYSICS_NP_QUERYSHARED
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#define PX_PHYSICS_NP_QUERYSHARED
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#include "foundation/PxMemory.h"
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namespace physx
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{
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using namespace Cm;
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PX_FORCE_INLINE bool applyFilterEquation(const Scb::Shape& scbShape, const PxFilterData& queryFd)
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{
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// if the filterData field is non-zero, and the bitwise-AND value of filterData AND the shape's
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// queryFilterData is zero, the shape is skipped.
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if(queryFd.word0 | queryFd.word1 | queryFd.word2 | queryFd.word3)
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{
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const PxFilterData& objFd = scbShape.getScShape().getQueryFilterData();
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const PxU32 keep = (queryFd.word0 & objFd.word0) | (queryFd.word1 & objFd.word1) | (queryFd.word2 & objFd.word2) | (queryFd.word3 & objFd.word3);
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if(!keep)
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return false;
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}
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return true;
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}
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//========================================================================================================================
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// these partial template specializations are used to generalize the query code to be reused for all permutations of
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// hit type=(raycast, overlap, sweep) x query type=(ANY, SINGLE, MULTIPLE)
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template <typename HitType> struct HitTypeSupport { enum { IsRaycast = 0, IsSweep = 0, IsOverlap = 0 }; };
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template <> struct HitTypeSupport<PxRaycastHit>
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{
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enum { IsRaycast = 1, IsSweep = 0, IsOverlap = 0 };
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static PX_FORCE_INLINE PxReal getDistance(const PxQueryHit& hit) { return static_cast<const PxRaycastHit&>(hit).distance; }
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};
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template <> struct HitTypeSupport<PxSweepHit>
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{
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enum { IsRaycast = 0, IsSweep = 1, IsOverlap = 0 };
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static PX_FORCE_INLINE PxReal getDistance(const PxQueryHit& hit) { return static_cast<const PxSweepHit&>(hit).distance; }
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};
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template <> struct HitTypeSupport<PxOverlapHit>
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{
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enum { IsRaycast = 0, IsSweep = 0, IsOverlap = 1 };
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static PX_FORCE_INLINE PxReal getDistance(const PxQueryHit&) { return -1.0f; }
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};
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#define HITDIST(hit) HitTypeSupport<HitType>::getDistance(hit)
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template<typename HitType>
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static PxU32 clipHitsToNewMaxDist(HitType* ppuHits, PxU32 count, PxReal newMaxDist)
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{
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PxU32 i=0;
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while(i!=count)
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{
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if(HITDIST(ppuHits[i]) > newMaxDist)
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ppuHits[i] = ppuHits[--count];
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else
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i++;
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}
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return count;
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}
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} // namespace physx
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#endif // PX_PHYSICS_NP_QUERYSHARED
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