Signal.h
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/**
* Copyright 1993-2015 NVIDIA Corporation. All rights reserved.
*
* Please refer to the NVIDIA end user license agreement (EULA) associated
* with this source code for terms and conditions that govern your use of
* this software. Any use, reproduction, disclosure, or distribution of
* this software and related documentation outside the terms of the EULA
* is strictly prohibited.
*
*/
#ifndef NV_UTIL_NPP_SIGNAL_H
#define NV_UTIL_NPP_SIGNAL_H
#include <cstring>
namespace npp
{
class Signal
{
public:
Signal() : nSize_(0)
{ };
explicit
Signal(size_t nSize) : nSize_(nSize)
{ };
Signal(const Signal &rSignal) : nSize_(rSignal.nSize_)
{ };
virtual
~Signal()
{ }
Signal &
operator= (const Signal &rSignal)
{
nSize_ = rSignal.nSize_;
return *this;
}
size_t
size()
const
{
return nSize_;
}
void
swap(Signal &rSignal)
{
size_t nTemp = nSize_;
nSize_ = rSignal.nSize_;
rSignal.nSize_ = nTemp;
}
private:
size_t nSize_;
};
template<typename D, class A>
class SignalTemplate: public Signal
{
public:
typedef D tData;
SignalTemplate(): aValues_(0)
{
;
}
SignalTemplate(size_t nSize): Signal(nSize)
, aValues_(0)
{
aValues_ = A::Malloc1D(size());
}
SignalTemplate(const SignalTemplate<D, A> &rSignal): Signal(rSignal)
, aValues_(0)
{
aValues_ = A::Malloc1D(size());
A::Copy1D(aValues_, rSignal.values(), size());
}
virtual
~SignalTemplate()
{
A::Free1D(aValues_);
}
SignalTemplate &
operator= (const SignalTemplate<D, A> &rSignal)
{
// in case of self-assignment
if (&rSignal == this)
{
return *this;
}
A::Free1D(aValues_);
this->aPixels_ = 0;
// assign parent class's data fields (width, height)
Signal::operator =(rSignal);
aValues_ = A::Malloc1D(size());
A::Copy1D(aValues_, rSignal.value(), size());
return *this;
}
/// Get a pointer to the pixel array.
/// The result pointer can be offset to pixel at position (x, y) and
/// even negative offsets are allowed.
/// \param nX Horizontal pointer/array offset.
/// \param nY Vertical pointer/array offset.
/// \return Pointer to the pixel array (or first pixel in array with coordinates (nX, nY).
tData *
values(int i = 0)
{
return aValues_ + i;
}
const
tData *
values(int i = 0)
const
{
return aValues_ + i;
}
void
swap(SignalTemplate<D, A> &rSignal)
{
Signal::swap(rSignal);
tData *aTemp = this->aValues_;
this->aValues_ = rSignal.aValues_;
rSignal.aValues_ = aTemp;
}
private:
D *aValues_;
};
} // npp namespace
#endif // NV_UTIL_NPP_SIGNAL_H