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/*
* Copyright (c) 2008-2017, NVIDIA CORPORATION. All rights reserved.
*
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited.
*/
#ifndef PARAM_ARRAY_H
#define PARAM_ARRAY_H
#include "nvparameterized/NvParameterized.h"
#include "PsUserAllocated.h"
#include "PxAssert.h"
namespace nvidia
{
namespace apex
{
struct ParamDynamicArrayStruct
{
void* buf;
bool isAllocated;
int elementSize;
int arraySizes[1];
};
template <class ElemType>
class ParamArray : public physx::UserAllocated
{
public:
ParamArray() : mParams(NULL), mArrayHandle(0), mArrayStruct(NULL) {}
ParamArray(NvParameterized::Interface* params, const char* arrayName, ParamDynamicArrayStruct* arrayStruct) :
mParams(params),
mArrayHandle(*params),
mArrayStruct(arrayStruct)
{
PX_ASSERT(mParams);
mParams->getParameterHandle(arrayName, mArrayHandle);
PX_ASSERT(mArrayStruct->elementSize == sizeof(ElemType));
}
ParamArray(NvParameterized::Interface* params, const NvParameterized::Handle& handle, ParamDynamicArrayStruct* arrayStruct) :
mParams(params),
mArrayHandle(handle),
mArrayStruct(arrayStruct)
{
PX_ASSERT(mArrayStruct->elementSize == sizeof(ElemType));
}
PX_INLINE bool init(NvParameterized::Interface* params, const char* arrayName, ParamDynamicArrayStruct* arrayStruct)
{
if (mParams == NULL && mArrayStruct == NULL)
{
mParams = params;
mArrayStruct = arrayStruct;
mArrayHandle.setInterface(mParams);
mParams->getParameterHandle(arrayName, mArrayHandle);
PX_ASSERT(mArrayStruct->elementSize == sizeof(ElemType));
return true;
}
return false;
}
PX_INLINE uint32_t size() const
{
// this only works for fixed structs
//return (uint32_t)mArrayHandle.parameterDefinition()->arraySize(0);
int outSize = 0;
if (mParams != NULL)
{
PX_ASSERT(mArrayHandle.getConstInterface() == mParams);
mArrayHandle.getArraySize(outSize);
}
return (uint32_t)outSize;
}
/**
Returns a constant reference to an element in the sequence.
*/
PX_INLINE const ElemType& operator[](unsigned int n) const
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
#if _DEBUG
uint32_t NxParamArraySize = 0;
mArrayHandle.getArraySize((int&)NxParamArraySize);
PX_ASSERT(NxParamArraySize > n);
#endif
return ((ElemType*)mArrayStruct->buf)[n];
}
/**
Returns a reference to an element in the sequence.
*/
PX_INLINE ElemType& operator[](unsigned int n)
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
//NvParameterized::Handle indexHandle;
//arrayHandle.getChildHandle( n, indexHandle );
#if _DEBUG
uint32_t NxParamArraySize = 0;
mArrayHandle.getArraySize((int&)NxParamArraySize);
PX_ASSERT(NxParamArraySize > n);
#endif
return ((ElemType*)mArrayStruct->buf)[n];
}
// resize is marginally useful because the ElemType doesn't have proper
// copy constructors, and if strings are withing ElemType that doesn't work well
PX_INLINE void resize(unsigned int n)
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
PX_ASSERT(mParams == mArrayHandle.getConstInterface());
mArrayHandle.resizeArray((int32_t)n);
}
// pushBack is marginally useful because the ElemType doesn't have proper
// copy constructors, and if strings are withing ElemType that doesn't work well
PX_INLINE void pushBack(const ElemType& x)
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
int32_t paramArraySize = 0;
mArrayHandle.getArraySize(paramArraySize);
mArrayHandle.resizeArray(paramArraySize + 1);
((ElemType*)mArrayStruct->buf)[(uint32_t)paramArraySize] = x;
}
PX_INLINE ElemType& pushBack()
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
int32_t paramArraySize = 0;
mArrayHandle.getArraySize(paramArraySize);
mArrayHandle.resizeArray(paramArraySize + 1);
return ((ElemType*)mArrayStruct->buf)[(uint32_t)paramArraySize];
}
PX_INLINE void replaceWithLast(unsigned position)
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
uint32_t arraySize = size();
PX_ASSERT(position < arraySize);
if (position != arraySize - 1)
{
// TODO should we call the destructor here or not?
//(*this)[position].~ElemType();
ElemType elem = back();
// put the replaced one in the back (possibly to be deleted)
(*this)[arraySize - 1] = (*this)[position];
(*this)[position] = elem;
}
popBack();
}
PX_INLINE bool isEmpty() const
{
return size() == 0;
}
PX_INLINE ElemType* begin()
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
return &((ElemType*)mArrayStruct->buf)[0];
}
PX_INLINE ElemType* end()
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
return &((ElemType*)mArrayStruct->buf)[size()];
}
PX_INLINE ElemType& front()
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
return ((ElemType*)mArrayStruct->buf)[0];
}
PX_INLINE ElemType& back()
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
return ((ElemType*)mArrayStruct->buf)[size() - 1];
}
PX_INLINE void clear()
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
resize(0);
}
PX_INLINE void popBack()
{
PX_ASSERT(mParams != NULL && mArrayStruct != NULL);
resize(size() - 1);
}
private:
NvParameterized::Interface* mParams;
NvParameterized::Handle mArrayHandle;
ParamDynamicArrayStruct* mArrayStruct;
};
}
} // end namespace nvidia::apex
#endif
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