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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 PT_PARTICLE_DATA_H
#define PT_PARTICLE_DATA_H
#include "PxPhysXConfig.h"
#if PX_USE_PARTICLE_SYSTEM_API
#include "PtParticleSystemCore.h"
#include "PtParticle.h"
namespace physx
{
namespace Pt
{
class ParticleData : public ParticleSystemState
{
//= ATTENTION! =====================================================================================
// Changing the data layout of this class breaks the binary serialization format. See comments for
// PX_BINARY_SERIAL_VERSION. If a modification is required, please adjust the getBinaryMetaData
// function. If the modification is made on a custom branch, please change PX_BINARY_SERIAL_VERSION
// accordingly.
//==================================================================================================
PX_NOCOPY(ParticleData)
public:
//---------------------------
// Implements ParticleSystemState
virtual bool addParticlesV(const PxParticleCreationData& creationData);
virtual void removeParticlesV(PxU32 count, const PxStrideIterator<const PxU32>& indices);
virtual void removeParticlesV();
virtual PxU32 getParticleCountV() const;
virtual void getParticlesV(ParticleSystemStateDataDesc& particles, bool fullState, bool devicePtr) const;
virtual void setPositionsV(PxU32 numParticles, const PxStrideIterator<const PxU32>& indices,
const PxStrideIterator<const PxVec3>& positions);
virtual void setVelocitiesV(PxU32 numParticles, const PxStrideIterator<const PxU32>& indices,
const PxStrideIterator<const PxVec3>& velocities);
virtual void setRestOffsetsV(PxU32 numParticles, const PxStrideIterator<const PxU32>& indices,
const PxStrideIterator<const PxF32>& restOffsets);
virtual void addDeltaVelocitiesV(const Cm::BitMap& bufferMap, const PxVec3* buffer, PxReal multiplier);
virtual PxBounds3 getWorldBoundsV() const;
virtual PxU32 getMaxParticlesV() const;
//~Implements ParticleSystemState
//---------------------------
PX_FORCE_INLINE PxU32 getMaxParticles() const
{
return mMaxParticles;
}
PX_FORCE_INLINE PxU32 getParticleCount() const
{
return mValidParticleCount;
}
PX_FORCE_INLINE const Cm::BitMap& getParticleMap() const
{
return mParticleMap;
}
PX_FORCE_INLINE PxU32 getValidParticleRange() const
{
return mValidParticleRange;
}
PX_FORCE_INLINE Particle* getParticleBuffer()
{
return mParticleBuffer;
}
PX_FORCE_INLINE PxF32* getRestOffsetBuffer()
{
return mRestOffsetBuffer;
}
PX_FORCE_INLINE PxBounds3& getWorldBounds()
{
return mWorldBounds;
}
// creation with copy
static ParticleData* create(ParticleSystemStateDataDesc& particles, const PxBounds3& bounds);
// creation with init
static ParticleData* create(PxU32 maxParticles, bool perParticleRestOffsets);
static ParticleData* create(PxDeserializationContext& context);
// creation from memory
// release this instance and associated memory
void release();
// exports particle state and aggregated data to the binary stream.
void exportData(PxSerializationContext& stream);
static void getBinaryMetaData(PxOutputStream& stream);
// special function to get rid of non transferable state
void clearSimState();
void onOriginShift(const PxVec3& shift);
private:
// placement serialization
ParticleData(PxU32 maxParticles, bool perParticleRestOffset);
ParticleData(ParticleSystemStateDataDesc& particles, const PxBounds3& bounds);
// inplace deserialization
ParticleData(PxU8* address);
virtual ~ParticleData();
PX_FORCE_INLINE static PxU32 getHeaderSize()
{
return (sizeof(ParticleData) + 15) & ~15;
}
PX_FORCE_INLINE static PxU32 getParticleBufferSize(PxU32 maxParticles)
{
return maxParticles * sizeof(Particle);
}
PX_FORCE_INLINE static PxU32 getRestOffsetBufferSize(PxU32 maxParticles, bool perParticleRestOffsets)
{
return perParticleRestOffsets ? maxParticles * sizeof(PxF32) : 0;
}
PX_FORCE_INLINE static PxU32 getBitmapSize(PxU32 maxParticles)
{
return ((maxParticles + 31) >> 5) * 4;
}
PX_FORCE_INLINE static PxU32 getTotalSize(PxU32 maxParticles, bool perParticleRestOffsets)
{
return getHeaderSize() + getDataSize(maxParticles, perParticleRestOffsets);
}
static PxU32 getDataSize(PxU32 maxParticles, bool perParticleRestOffsets)
{
PxU32 size = (getBitmapSize(maxParticles) + 15) & ~15;
size += getParticleBufferSize(maxParticles);
size += getRestOffsetBufferSize(maxParticles, perParticleRestOffsets);
return size;
}
PX_FORCE_INLINE void removeParticle(PxU32 particleIndex);
void fixupPointers();
private:
// This class is laid out following a strict convention for serialization/deserialization
bool mOwnMemory;
PxU32 mMaxParticles; // Maximal number of particles.
bool mHasRestOffsets; // Whether per particle offsets are supported.
PxU32 mValidParticleRange; // Index range in which valid particles are situated.
PxU32 mValidParticleCount; // The number of valid particles.
PxBounds3 mWorldBounds; // World bounds including all particles.
Particle* mParticleBuffer; // Main particle data buffer.
PxF32* mRestOffsetBuffer; // Per particle rest offsets.
Cm::BitMap mParticleMap; // Contains occupancy of all per particle data buffers.
};
} // namespace Pt
} // namespace physx
#endif // PX_USE_PARTICLE_SYSTEM_API
#endif // PT_PARTICLE_DATA_H
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