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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef PX_PHYSICS_SCB_SCENE_BUFFER
#define PX_PHYSICS_SCB_SCENE_BUFFER
#include "CmPhysXCommon.h"
#include "ScScene.h"
#define PxClientBehaviorFlag_eNOT_BUFFERED PxClientBehaviorFlags(0xff)
namespace physx
{
namespace Scb
{
struct SceneBuffer
{
public:
static const PxU32 sMaxNbDominanceGroups = 32;
PX_INLINE SceneBuffer();
PX_INLINE void clearDominanceBuffer();
PX_INLINE void setDominancePair(PxU32 group1, PxU32 group2, const PxDominanceGroupPair& dominance);
PX_INLINE bool getDominancePair(PxU32 group1, PxU32 group2, PxDominanceGroupPair& dominance) const;
PX_INLINE void syncDominancePairs(Sc::Scene& scene);
PX_INLINE void clearVisualizationParams();
PxReal mVisualizationParam[PxVisualizationParameter::eNUM_VALUES];
PxU8 mVisualizationParamChanged[PxVisualizationParameter::eNUM_VALUES];
PxBounds3 mVisualizationCullingBox;
private:
PxU32 mDominancePairFlag[sMaxNbDominanceGroups - 1];
PxU32 mDominancePairValues[sMaxNbDominanceGroups];
public:
PxVec3 mGravity;
PxReal mBounceThresholdVelocity;
PxSceneFlags mFlags;
PxU32 mSolverBatchSize;
PxU32 mNumClientsCreated;
Ps::Array<PxClientBehaviorFlags> mClientBehaviorFlags; //a value is buffered if it is not -1.
};
PX_INLINE SceneBuffer::SceneBuffer() :
mNumClientsCreated (0),
mClientBehaviorFlags(PX_DEBUG_EXP("clientBehaviorFlags"))
{
clearDominanceBuffer();
clearVisualizationParams();
mClientBehaviorFlags.pushBack(PxClientBehaviorFlag_eNOT_BUFFERED); //need member for default client, PxClientBehaviorFlag_eNOT_BUFFERED means its not storing anything.
}
PX_FORCE_INLINE void SceneBuffer::clearDominanceBuffer()
{
PxMemZero(&mDominancePairFlag, (sMaxNbDominanceGroups - 1) * sizeof(PxU32));
}
PX_FORCE_INLINE void SceneBuffer::clearVisualizationParams()
{
PxMemZero(mVisualizationParamChanged, PxVisualizationParameter::eNUM_VALUES * sizeof(PxU8));
}
PX_INLINE void SceneBuffer::setDominancePair(PxU32 group1, PxU32 group2, const PxDominanceGroupPair& dominance)
{
PX_ASSERT(group1 != group2);
PX_ASSERT(group1 < sMaxNbDominanceGroups);
PX_ASSERT(group2 < sMaxNbDominanceGroups);
if(group1 < group2)
mDominancePairFlag[group1] |= (1 << group2);
else
mDominancePairFlag[group2] |= (1 << group1);
if(dominance.dominance0 != 0.0f)
mDominancePairValues[group1] |= (1 << group2);
else
mDominancePairValues[group1] &= ~(1 << group2);
if(dominance.dominance1 != 0.0f)
mDominancePairValues[group2] |= (1 << group1);
else
mDominancePairValues[group2] &= ~(1 << group1);
}
PX_INLINE bool SceneBuffer::getDominancePair(PxU32 group1, PxU32 group2, PxDominanceGroupPair& dominance) const
{
PX_ASSERT(group1 != group2);
PX_ASSERT(group1 < sMaxNbDominanceGroups);
PX_ASSERT(group2 < sMaxNbDominanceGroups);
PxU32 isBuffered;
if(group1 < group2)
isBuffered = mDominancePairFlag[group1] & (1 << group2);
else
isBuffered = mDominancePairFlag[group2] & (1 << group1);
if(!isBuffered)
return false;
dominance.dominance0 = PxU8((mDominancePairValues[group1] & (1 << group2)) >> group2);
dominance.dominance1 = PxU8((mDominancePairValues[group2] & (1 << group1)) >> group1);
return true;
}
PX_INLINE void SceneBuffer::syncDominancePairs(Sc::Scene& scene)
{
for(PxU32 i=0; i<(sMaxNbDominanceGroups - 1); i++)
{
if(mDominancePairFlag[i])
{
for(PxU32 j=(i+1); j<sMaxNbDominanceGroups; j++)
{
PxDominanceGroupPair dominance(0, 0);
if(getDominancePair(i, j, dominance))
scene.setDominanceGroupPair(PxDominanceGroup(i), PxDominanceGroup(j), dominance);
}
}
}
clearDominanceBuffer();
}
} // namespace Scb
}
#endif
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