217 lines
7.6 KiB
C++
217 lines
7.6 KiB
C++
/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
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// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of the copyright holders may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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#ifndef __OPENCV_GPU_SATURATE_CAST_HPP__
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#define __OPENCV_GPU_SATURATE_CAST_HPP__
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#include "internal_shared.hpp"
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BEGIN_OPENCV_DEVICE_NAMESPACE
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template<typename _Tp> __device__ __forceinline__ _Tp saturate_cast(uchar v) { return _Tp(v); }
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template<typename _Tp> __device__ __forceinline__ _Tp saturate_cast(schar v) { return _Tp(v); }
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template<typename _Tp> __device__ __forceinline__ _Tp saturate_cast(ushort v) { return _Tp(v); }
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template<typename _Tp> __device__ __forceinline__ _Tp saturate_cast(short v) { return _Tp(v); }
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template<typename _Tp> __device__ __forceinline__ _Tp saturate_cast(uint v) { return _Tp(v); }
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template<typename _Tp> __device__ __forceinline__ _Tp saturate_cast(int v) { return _Tp(v); }
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template<typename _Tp> __device__ __forceinline__ _Tp saturate_cast(float v) { return _Tp(v); }
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template<typename _Tp> __device__ __forceinline__ _Tp saturate_cast(double v) { return _Tp(v); }
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template<> __device__ __forceinline__ uchar saturate_cast<uchar>(schar v)
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{
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return (uchar) ::max((int)v, 0);
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}
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template<> __device__ __forceinline__ uchar saturate_cast<uchar>(ushort v)
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{
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return (uchar) ::min((uint)v, (uint)UCHAR_MAX);
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}
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template<> __device__ __forceinline__ uchar saturate_cast<uchar>(int v)
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{
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return (uchar)((uint)v <= UCHAR_MAX ? v : v > 0 ? UCHAR_MAX : 0);
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}
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template<> __device__ __forceinline__ uchar saturate_cast<uchar>(uint v)
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{
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return (uchar) ::min(v, (uint)UCHAR_MAX);
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}
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template<> __device__ __forceinline__ uchar saturate_cast<uchar>(short v)
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{
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return saturate_cast<uchar>((uint)v);
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}
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template<> __device__ __forceinline__ uchar saturate_cast<uchar>(float v)
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{
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int iv = __float2int_rn(v);
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return saturate_cast<uchar>(iv);
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}
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template<> __device__ __forceinline__ uchar saturate_cast<uchar>(double v)
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{
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#if __CUDA_ARCH__ >= 130
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int iv = __double2int_rn(v);
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return saturate_cast<uchar>(iv);
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#else
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return saturate_cast<uchar>((float)v);
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#endif
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}
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template<> __device__ __forceinline__ schar saturate_cast<schar>(uchar v)
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{
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return (schar) ::min((int)v, SCHAR_MAX);
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}
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template<> __device__ __forceinline__ schar saturate_cast<schar>(ushort v)
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{
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return (schar) ::min((uint)v, (uint)SCHAR_MAX);
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}
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template<> __device__ __forceinline__ schar saturate_cast<schar>(int v)
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{
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return (schar)((uint)(v-SCHAR_MIN) <= (uint)UCHAR_MAX ? v : v > 0 ? SCHAR_MAX : SCHAR_MIN);
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}
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template<> __device__ __forceinline__ schar saturate_cast<schar>(short v)
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{
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return saturate_cast<schar>((int)v);
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}
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template<> __device__ __forceinline__ schar saturate_cast<schar>(uint v)
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{
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return (schar) ::min(v, (uint)SCHAR_MAX);
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}
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template<> __device__ __forceinline__ schar saturate_cast<schar>(float v)
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{
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int iv = __float2int_rn(v);
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return saturate_cast<schar>(iv);
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}
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template<> __device__ __forceinline__ schar saturate_cast<schar>(double v)
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{
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#if __CUDA_ARCH__ >= 130
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int iv = __double2int_rn(v);
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return saturate_cast<schar>(iv);
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#else
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return saturate_cast<schar>((float)v);
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#endif
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}
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template<> __device__ __forceinline__ ushort saturate_cast<ushort>(schar v)
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{
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return (ushort) ::max((int)v, 0);
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}
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template<> __device__ __forceinline__ ushort saturate_cast<ushort>(short v)
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{
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return (ushort) ::max((int)v, 0);
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}
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template<> __device__ __forceinline__ ushort saturate_cast<ushort>(int v)
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{
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return (ushort)((uint)v <= (uint)USHRT_MAX ? v : v > 0 ? USHRT_MAX : 0);
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}
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template<> __device__ __forceinline__ ushort saturate_cast<ushort>(uint v)
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{
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return (ushort) ::min(v, (uint)USHRT_MAX);
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}
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template<> __device__ __forceinline__ ushort saturate_cast<ushort>(float v)
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{
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int iv = __float2int_rn(v);
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return saturate_cast<ushort>(iv);
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}
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template<> __device__ __forceinline__ ushort saturate_cast<ushort>(double v)
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{
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#if __CUDA_ARCH__ >= 130
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int iv = __double2int_rn(v);
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return saturate_cast<ushort>(iv);
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#else
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return saturate_cast<ushort>((float)v);
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#endif
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}
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template<> __device__ __forceinline__ short saturate_cast<short>(ushort v)
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{
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return (short) ::min((int)v, SHRT_MAX);
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}
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template<> __device__ __forceinline__ short saturate_cast<short>(int v)
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{
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return (short)((uint)(v - SHRT_MIN) <= (uint)USHRT_MAX ? v : v > 0 ? SHRT_MAX : SHRT_MIN);
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}
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template<> __device__ __forceinline__ short saturate_cast<short>(uint v)
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{
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return (short) ::min(v, (uint)SHRT_MAX);
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}
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template<> __device__ __forceinline__ short saturate_cast<short>(float v)
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{
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int iv = __float2int_rn(v);
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return saturate_cast<short>(iv);
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}
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template<> __device__ __forceinline__ short saturate_cast<short>(double v)
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{
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#if __CUDA_ARCH__ >= 130
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int iv = __double2int_rn(v);
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return saturate_cast<short>(iv);
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#else
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return saturate_cast<short>((float)v);
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#endif
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}
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template<> __device__ __forceinline__ int saturate_cast<int>(float v)
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{
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return __float2int_rn(v);
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}
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template<> __device__ __forceinline__ int saturate_cast<int>(double v)
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{
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#if __CUDA_ARCH__ >= 130
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return __double2int_rn(v);
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#else
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return saturate_cast<int>((float)v);
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#endif
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}
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template<> __device__ __forceinline__ uint saturate_cast<uint>(float v)
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{
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return __float2uint_rn(v);
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}
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template<> __device__ __forceinline__ uint saturate_cast<uint>(double v)
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{
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#if __CUDA_ARCH__ >= 130
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return __double2uint_rn(v);
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#else
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return saturate_cast<uint>((float)v);
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#endif
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}
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END_OPENCV_DEVICE_NAMESPACE
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#endif /* __OPENCV_GPU_SATURATE_CAST_HPP__ */ |