2022-01-13 14:05:24 +08:00
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/* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
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2019-08-03 01:45:47 +08:00
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef NV_UTIL_NPP_IMAGE_ALLOCATORS_CPU_H
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#define NV_UTIL_NPP_IMAGE_ALLOCATORS_CPU_H
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#include "Exceptions.h"
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namespace npp
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{
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template <typename D, size_t N>
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class ImageAllocatorCPU
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{
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public:
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static
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D *
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Malloc2D(unsigned int nWidth, unsigned int nHeight, unsigned int *pPitch)
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{
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NPP_ASSERT(nWidth * nHeight > 0);
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D *pResult = new D[nWidth * N * nHeight];
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*pPitch = nWidth * sizeof(D) * N;
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return pResult;
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};
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static
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void
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Free2D(D *pPixels)
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{
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delete[] pPixels;
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};
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static
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void
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Copy2D(D *pDst, size_t nDstPitch, const D *pSrc, size_t nSrcPitch, size_t nWidth, size_t nHeight)
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{
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const void *pSrcLine = pSrc;
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void *pDstLine = pDst;
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for (size_t iLine = 0; iLine < nHeight; ++iLine)
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{
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// copy one line worth of data
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memcpy(pDst, pSrc, nWidth * N * sizeof(D));
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// move data pointers to next line
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pDst += nDstPitch;
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pSrc += nSrcPitch;
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}
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};
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};
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} // npp namespace
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#endif // NV_UTIL_NPP_IMAGE_ALLOCATORS_CPU_H
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