Open Source Computer Vision Library
https://opencv.org/
128 lines
5.3 KiB
128 lines
5.3 KiB
/*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 GpuMaterials 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_DEVMEM2D_HPP__ |
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#define __OPENCV_GPU_DEVMEM2D_HPP__ |
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namespace cv |
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{ |
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namespace gpu |
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{ |
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// Simple lightweight structures that encapsulates information about an image on device. |
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// It is intended to pass to nvcc-compiled code. GpuMat depends on headers that nvcc can't compile |
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#if defined(__CUDACC__) |
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#define __CV_GPU_HOST_DEVICE__ __host__ __device__ |
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#else |
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#define __CV_GPU_HOST_DEVICE__ |
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#endif |
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template <typename T> struct DevMem2D_ |
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{ |
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int cols; |
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int rows; |
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T* data; |
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size_t step; |
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DevMem2D_() : cols(0), rows(0), data(0), step(0) {} |
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DevMem2D_(int rows_, int cols_, T *data_, size_t step_) |
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: cols(cols_), rows(rows_), data(data_), step(step_) {} |
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template <typename U> |
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explicit DevMem2D_(const DevMem2D_<U>& d) |
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: cols(d.cols), rows(d.rows), data((T*)d.data), step(d.step) {} |
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typedef T elem_type; |
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enum { elem_size = sizeof(elem_type) }; |
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__CV_GPU_HOST_DEVICE__ size_t elemSize() const { return elem_size; } |
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__CV_GPU_HOST_DEVICE__ T* ptr(int y = 0) { return (T*)( (char*)data + y * step ); } |
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__CV_GPU_HOST_DEVICE__ const T* ptr(int y = 0) const { return (const T*)( (const char*)data + y * step ); } |
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}; |
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template<typename T> struct PtrStep_ |
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{ |
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T* data; |
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size_t step; |
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PtrStep_() : data(0), step(0) {} |
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PtrStep_(const DevMem2D_<T>& mem) : data(mem.data), step(mem.step) {} |
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typedef T elem_type; |
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enum { elem_size = sizeof(elem_type) }; |
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__CV_GPU_HOST_DEVICE__ size_t elemSize() const { return elem_size; } |
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__CV_GPU_HOST_DEVICE__ T* ptr(int y = 0) { return (T*)( (char*)data + y * step); } |
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__CV_GPU_HOST_DEVICE__ const T* ptr(int y = 0) const { return (const T*)( (const char*)data + y * step); } |
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}; |
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template <bool> struct StaticCheck; |
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template <> struct StaticCheck<true>{}; |
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template<typename T> struct PtrElemStep_ : public PtrStep_<T> |
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{ |
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PtrElemStep_(const DevMem2D_<T>& mem) : PtrStep_<T>(mem) |
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{ |
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this->step /= PtrStep_<T>::elem_size; |
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} |
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private: |
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StaticCheck<256 % sizeof(T) == 0> ElemStepTypeCheck; |
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}; |
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typedef DevMem2D_<unsigned char> DevMem2D; |
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typedef DevMem2D_<float> DevMem2Df; |
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typedef DevMem2D_<int> DevMem2Di; |
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typedef PtrStep_<unsigned char> PtrStep; |
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typedef PtrStep_<float> PtrStepf; |
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typedef PtrStep_<int> PtrStepi; |
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typedef PtrElemStep_<unsigned char> PtrElemStep; |
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typedef PtrElemStep_<float> PtrElemStepf; |
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typedef PtrElemStep_<int> PtrElemStepi; |
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#undef __CV_GPU_HOST_DEVICE__ |
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} |
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} |
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#endif /* __OPENCV_GPU_DEVMEM2D_HPP__ */
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