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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's 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.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "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 Intel Corporation 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.
//
//M*/
#ifndef __OPENCV_GPU_DATAMOV_UTILS_HPP__
#define __OPENCV_GPU_DATAMOV_UTILS_HPP__
#include "common.hpp"
namespace cv { namespace gpu { namespace device
{
#if defined __CUDA_ARCH__ && __CUDA_ARCH__ >= 200
// for Fermi memory space is detected automatically
template <typename T> struct ForceGlob
{
__device__ __forceinline__ static void Load(const T* ptr, int offset, T& val) { val = ptr[offset]; }
};
#else // __CUDA_ARCH__ >= 200
#if defined(_WIN64) || defined(__LP64__)
// 64-bit register modifier for inlined asm
#define OPENCV_GPU_ASM_PTR "l"
#else
// 32-bit register modifier for inlined asm
#define OPENCV_GPU_ASM_PTR "r"
#endif
template<class T> struct ForceGlob;
#define OPENCV_GPU_DEFINE_FORCE_GLOB(base_type, ptx_type, reg_mod) \
template <> struct ForceGlob<base_type> \
{ \
__device__ __forceinline__ static void Load(const base_type* ptr, int offset, base_type& val) \
{ \
asm("ld.global."#ptx_type" %0, [%1];" : "="#reg_mod(val) : OPENCV_GPU_ASM_PTR(ptr + offset)); \
} \
};
#define OPENCV_GPU_DEFINE_FORCE_GLOB_B(base_type, ptx_type) \
template <> struct ForceGlob<base_type> \
{ \
__device__ __forceinline__ static void Load(const base_type* ptr, int offset, base_type& val) \
{ \
asm("ld.global."#ptx_type" %0, [%1];" : "=r"(*reinterpret_cast<uint*>(&val)) : OPENCV_GPU_ASM_PTR(ptr + offset)); \
} \
};
OPENCV_GPU_DEFINE_FORCE_GLOB_B(uchar, u8)
OPENCV_GPU_DEFINE_FORCE_GLOB_B(schar, s8)
OPENCV_GPU_DEFINE_FORCE_GLOB_B(char, b8)
OPENCV_GPU_DEFINE_FORCE_GLOB (ushort, u16, h)
OPENCV_GPU_DEFINE_FORCE_GLOB (short, s16, h)
OPENCV_GPU_DEFINE_FORCE_GLOB (uint, u32, r)
OPENCV_GPU_DEFINE_FORCE_GLOB (int, s32, r)
OPENCV_GPU_DEFINE_FORCE_GLOB (float, f32, f)
OPENCV_GPU_DEFINE_FORCE_GLOB (double, f64, d)
#undef OPENCV_GPU_DEFINE_FORCE_GLOB
#undef OPENCV_GPU_DEFINE_FORCE_GLOB_B
#undef OPENCV_GPU_ASM_PTR
#endif // __CUDA_ARCH__ >= 200
}}} // namespace cv { namespace gpu { namespace device
#endif // __OPENCV_GPU_DATAMOV_UTILS_HPP__
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