Initial Commit

2026-02-12 11:46:06 +03:00
commit b044c8d1a5
3973 changed files with 1599881 additions and 0 deletions
--- a/thirdparty/bullet/src/Bullet3OpenCL/BroadphaseCollision/b3GpuParallelLinearBvhBroadphase.cpp
+++ b/thirdparty/bullet/src/Bullet3OpenCL/BroadphaseCollision/b3GpuParallelLinearBvhBroadphase.cpp
@@ -0,0 +1,76 @@
+/*
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it freely,
+subject to the following restrictions:
+
+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.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+//Initial Author Jackson Lee, 2014
+
+#include "b3GpuParallelLinearBvhBroadphase.h"
+
+b3GpuParallelLinearBvhBroadphase::b3GpuParallelLinearBvhBroadphase(cl_context context, cl_device_id device, cl_command_queue queue) : m_plbvh(context, device, queue),
+
+																																	  m_overlappingPairsGpu(context, queue),
+
+																																	  m_aabbsGpu(context, queue),
+																																	  m_smallAabbsMappingGpu(context, queue),
+																																	  m_largeAabbsMappingGpu(context, queue)
+{
+}
+
+void b3GpuParallelLinearBvhBroadphase::createProxy(const b3Vector3& aabbMin, const b3Vector3& aabbMax, int userPtr, int collisionFilterGroup, int collisionFilterMask)
+{
+	int newAabbIndex = m_aabbsCpu.size();
+
+	b3SapAabb aabb;
+	aabb.m_minVec = aabbMin;
+	aabb.m_maxVec = aabbMax;
+
+	aabb.m_minIndices[3] = userPtr;
+	aabb.m_signedMaxIndices[3] = newAabbIndex;
+
+	m_smallAabbsMappingCpu.push_back(newAabbIndex);
+
+	m_aabbsCpu.push_back(aabb);
+}
+void b3GpuParallelLinearBvhBroadphase::createLargeProxy(const b3Vector3& aabbMin, const b3Vector3& aabbMax, int userPtr, int collisionFilterGroup, int collisionFilterMask)
+{
+	int newAabbIndex = m_aabbsCpu.size();
+
+	b3SapAabb aabb;
+	aabb.m_minVec = aabbMin;
+	aabb.m_maxVec = aabbMax;
+
+	aabb.m_minIndices[3] = userPtr;
+	aabb.m_signedMaxIndices[3] = newAabbIndex;
+
+	m_largeAabbsMappingCpu.push_back(newAabbIndex);
+
+	m_aabbsCpu.push_back(aabb);
+}
+
+void b3GpuParallelLinearBvhBroadphase::calculateOverlappingPairs(int maxPairs)
+{
+	//Reconstruct BVH
+	m_plbvh.build(m_aabbsGpu, m_smallAabbsMappingGpu, m_largeAabbsMappingGpu);
+
+	//
+	m_overlappingPairsGpu.resize(maxPairs);
+	m_plbvh.calculateOverlappingPairs(m_overlappingPairsGpu);
+}
+void b3GpuParallelLinearBvhBroadphase::calculateOverlappingPairsHost(int maxPairs)
+{
+	b3Assert(0);  //CPU version not implemented
+}
+
+void b3GpuParallelLinearBvhBroadphase::writeAabbsToGpu()
+{
+	m_aabbsGpu.copyFromHost(m_aabbsCpu);
+	m_smallAabbsMappingGpu.copyFromHost(m_smallAabbsMappingCpu);
+	m_largeAabbsMappingGpu.copyFromHost(m_largeAabbsMappingCpu);
+}