/* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
 *
 * 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.
 */

#ifndef NV_UTIL_NPP_IMAGE_ALLOCATORS_NPP_H
#define NV_UTIL_NPP_IMAGE_ALLOCATORS_NPP_H

#include "Exceptions.h"

#include <nppi.h>
#include <cuda_runtime.h>

namespace npp
{
    template <typename D, size_t N>
    D *
    MallocTightCUDA(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch)
    {
        D *pResult;
        *pPitch = nWidth * sizeof(D) * N;
        NPP_CHECK_CUDA(cudaMalloc(&pResult, *pPitch * nHeight));
        NPP_ASSERT_NOT_NULL(pResult);

        return pResult;
    }


    template <typename D, size_t N>
    class ImageAllocator
    {
    };

    template<>
    class ImageAllocator<Npp8u, 1>
    {
        public:
            static
            Npp8u *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp8u *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp8u, 1>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_8u_C1(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp8u *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp8u), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp8u), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp8u), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp8u, 2>
    {
        public:
            static
            Npp8u *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp8u *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp8u, 2>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_8u_C2(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp8u *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp8u), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp8u), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp8u), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp8u, 3>
    {
        public:
            static
            Npp8u *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp8u *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp8u, 3>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_8u_C3(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp8u *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp8u), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp8u), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp8u), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp8u, 4>
    {
        public:
            static
            Npp8u *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp8u *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp8u, 4>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_8u_C4(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp8u *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp8u), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp8u), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp8u *pDst, size_t nDstPitch, const Npp8u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp8u), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp16u, 1>
    {
        public:
            static
            Npp16u *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp16u *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp16u, 1>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_16u_C1(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp16u *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp16u), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp16u), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp16u), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp16u, 2>
    {
        public:
            static
            Npp16u *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp16u *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp16u, 2>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_16u_C2(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp16u *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp16u), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp16u), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp16u), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };


    template<>
    class ImageAllocator<Npp16u, 3>
    {
        public:
            static
            Npp16u *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp16u *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp16u, 3>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_16u_C3(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp16u *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp16u), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp16u), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp16u), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp16u, 4>
    {
        public:
            static
            Npp16u *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp16u *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp16u, 4>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_16u_C4(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp16u *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp16u), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp16u), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp16u *pDst, size_t nDstPitch, const Npp16u *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp16u), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp16s, 1>
    {
        public:
            static
            Npp16s *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp16s *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp16s, 1>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_16s_C1(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp16s *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp16s *pDst, size_t nDstPitch, const Npp16s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp16s), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp16s *pDst, size_t nDstPitch, const Npp16s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp16s), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp16s *pDst, size_t nDstPitch, const Npp16s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp16s), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp16s, 2>
    {
        public:
            static
            Npp16s *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp16s *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp16s, 2>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_16s_C2(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp16s *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp16s *pDst, size_t nDstPitch, const Npp16s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp16s), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp16s *pDst, size_t nDstPitch, const Npp16s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp16s), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp16s *pDst, size_t nDstPitch, const Npp16s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp16s), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp16s, 4>
    {
        public:
            static
            Npp16s *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp16s *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp16s, 4>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_16s_C4(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp16s *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp16s *pDst, size_t nDstPitch, const Npp16s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp16s), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp16s *pDst, size_t nDstPitch, const Npp16s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp16s), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp16s *pDst, size_t nDstPitch, const Npp16s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp16s), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp32s, 1>
    {
        public:
            static
            Npp32s *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp32s *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp32s, 1>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_32s_C1(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp32s *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp32s *pDst, size_t nDstPitch, const Npp32s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp32s), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp32s *pDst, size_t nDstPitch, const Npp32s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp32s), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp32s *pDst, size_t nDstPitch, const Npp32s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp32s), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp32s, 3>
    {
        public:
            static
            Npp32s *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp32s *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp32s, 3>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_32s_C3(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp32s *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp32s *pDst, size_t nDstPitch, const Npp32s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp32s), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp32s *pDst, size_t nDstPitch, const Npp32s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp32s), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp32s *pDst, size_t nDstPitch, const Npp32s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp32s), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp32s, 4>
    {
        public:
            static
            Npp32s *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp32s *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp32s, 4>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_32s_C4(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp32s *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp32s *pDst, size_t nDstPitch, const Npp32s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp32s), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp32s *pDst, size_t nDstPitch, const Npp32s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp32s), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp32s *pDst, size_t nDstPitch, const Npp32s *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp32s), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp32f, 1>
    {
        public:
            static
            Npp32f *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp32f *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp32f, 1>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_32f_C1(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp32f *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp32f), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp32f), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * sizeof(Npp32f), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp32f, 2>
    {
        public:
            static
            Npp32f *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp32f *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp32f, 2>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_32f_C2(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp32f *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp32f), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp32f), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 2 * sizeof(Npp32f), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp32f, 3>
    {
        public:
            static
            Npp32f *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp32f *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp32f, 3>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_32f_C3(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp32f *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp32f), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp32f), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 3 * sizeof(Npp32f), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

    template<>
    class ImageAllocator<Npp32f, 4>
    {
        public:
            static
            Npp32f *
            Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch, bool bTight = false)
            {
                NPP_ASSERT(nWidth * nHeight > 0);

                Npp32f *pResult = 0;

                if (bTight)
                {
                    pResult = MallocTightCUDA<Npp32f, 4>(nWidth, nHeight, pPitch);
                }
                else
                {
                    pResult = nppiMalloc_32f_C4(nWidth, nHeight, reinterpret_cast<int *>(pPitch));
                    NPP_ASSERT(pResult != 0);
                }

                return pResult;
            };

            static
            void
            Free2D(Npp32f *pPixels)
            {
                nppiFree(pPixels);
            };

            static
            void
            Copy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp32f), nHeight, cudaMemcpyDeviceToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            HostToDeviceCopy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp32f), nHeight, cudaMemcpyHostToDevice);
                NPP_ASSERT(cudaSuccess == eResult);
            };

            static
            void
            DeviceToHostCopy2D(Npp32f *pDst, size_t nDstPitch, const Npp32f *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
            {
                cudaError_t eResult;
                eResult = cudaMemcpy2D(pDst, nDstPitch, pSrc, nSrcPitch, nWidth * 4 * sizeof(Npp32f), nHeight, cudaMemcpyDeviceToHost);
                NPP_ASSERT(cudaSuccess == eResult);
            };
    };

} // npp namespace

#endif // NV_UTIL_NPP_IMAGE_ALLOCATORS_NPP_H