mirror of
https://github.com/NVIDIA/cuda-samples.git
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127 lines
3.2 KiB
C++
127 lines
3.2 KiB
C++
/* Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
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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_PIXEL_H
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#define NV_UTIL_PIXEL_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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struct Pixel
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{ };
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template <typename D>
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struct Pixel<D, 1>
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{
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D x;
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const D &
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operator[](size_t iChannel)
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const
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{
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NPP_ASSERT(iChannel < 1);
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return (&x)[iChannel];
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}
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D &
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operator[](size_t iChannel)
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{
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NPP_ASSERT(iChannel < 1);
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return (&x)[iChannel];
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}
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};
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template <typename D>
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struct Pixel<D, 2>
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{
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D x,y;
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const D &
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operator[](size_t iChannel)
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const
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{
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NPP_ASSERT(iChannel < 2);
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return (&x)[iChannel];
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}
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D &
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operator[](size_t iChannel)
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{
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NPP_ASSERT(iChannel < 2);
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return (&x)[iChannel];
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}
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};
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template <typename D>
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struct Pixel<D, 3>
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{
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D x,y,z;
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const D &
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operator[](size_t iChannel)
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const
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{
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NPP_ASSERT(iChannel < 3);
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return (&x)[iChannel];
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}
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D &
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operator[](size_t iChannel)
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{
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NPP_ASSERT(iChannel < 3);
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return (&x)[iChannel];
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}
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};
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template <typename D>
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struct Pixel<D, 4>
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{
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D x, y, z, w;
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const D &
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operator[](size_t iChannel)
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const
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{
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NPP_ASSERT(iChannel < 4);
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return (&x)[iChannel];
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}
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D &
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operator[](size_t iChannel)
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{
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NPP_ASSERT(iChannel < 4);
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return (&x)[iChannel];
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}
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};
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} // npp namespace
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#endif // NV_UTIL_PIXEL_H
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