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authoryash11122017-07-07 21:20:49 +0530
committeryash11122017-07-07 21:20:49 +0530
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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__