76 lines
2.8 KiB
C++
76 lines
2.8 KiB
C++
/*
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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//Initial Author Jackson Lee, 2014
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#include "b3GpuParallelLinearBvhBroadphase.h"
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b3GpuParallelLinearBvhBroadphase::b3GpuParallelLinearBvhBroadphase(cl_context context, cl_device_id device, cl_command_queue queue) : m_plbvh(context, device, queue),
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m_overlappingPairsGpu(context, queue),
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m_aabbsGpu(context, queue),
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m_smallAabbsMappingGpu(context, queue),
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m_largeAabbsMappingGpu(context, queue)
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{
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}
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void b3GpuParallelLinearBvhBroadphase::createProxy(const b3Vector3& aabbMin, const b3Vector3& aabbMax, int userPtr, int collisionFilterGroup, int collisionFilterMask)
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{
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int newAabbIndex = m_aabbsCpu.size();
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b3SapAabb aabb;
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aabb.m_minVec = aabbMin;
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aabb.m_maxVec = aabbMax;
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aabb.m_minIndices[3] = userPtr;
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aabb.m_signedMaxIndices[3] = newAabbIndex;
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m_smallAabbsMappingCpu.push_back(newAabbIndex);
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m_aabbsCpu.push_back(aabb);
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}
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void b3GpuParallelLinearBvhBroadphase::createLargeProxy(const b3Vector3& aabbMin, const b3Vector3& aabbMax, int userPtr, int collisionFilterGroup, int collisionFilterMask)
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{
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int newAabbIndex = m_aabbsCpu.size();
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b3SapAabb aabb;
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aabb.m_minVec = aabbMin;
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aabb.m_maxVec = aabbMax;
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aabb.m_minIndices[3] = userPtr;
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aabb.m_signedMaxIndices[3] = newAabbIndex;
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m_largeAabbsMappingCpu.push_back(newAabbIndex);
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m_aabbsCpu.push_back(aabb);
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}
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void b3GpuParallelLinearBvhBroadphase::calculateOverlappingPairs(int maxPairs)
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{
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//Reconstruct BVH
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m_plbvh.build(m_aabbsGpu, m_smallAabbsMappingGpu, m_largeAabbsMappingGpu);
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//
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m_overlappingPairsGpu.resize(maxPairs);
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m_plbvh.calculateOverlappingPairs(m_overlappingPairsGpu);
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}
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void b3GpuParallelLinearBvhBroadphase::calculateOverlappingPairsHost(int maxPairs)
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{
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b3Assert(0); //CPU version not implemented
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}
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void b3GpuParallelLinearBvhBroadphase::writeAabbsToGpu()
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{
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m_aabbsGpu.copyFromHost(m_aabbsCpu);
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m_smallAabbsMappingGpu.copyFromHost(m_smallAabbsMappingCpu);
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m_largeAabbsMappingGpu.copyFromHost(m_largeAabbsMappingCpu);
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}
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