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42 
43 #ifndef __OPENCV_CUDA_COMMON_HPP__
44 #define __OPENCV_CUDA_COMMON_HPP__
45 
46 #include <cuda_runtime.h>
47 #include "opencv2/core/cuda_types.hpp"
48 #include "opencv2/core/cvdef.h"
49 #include "opencv2/core/base.hpp"
50 
51 /** @file
52  * @deprecated Use @ref cudev instead.
53  */
54 
55 //! @cond IGNORED
56 
57 #ifndef CV_PI_F
58     #ifndef CV_PI
59         #define CV_PI_F 3.14159265f
60     #else
61         #define CV_PI_F ((float)CV_PI)
62     #endif
63 #endif
64 
65 namespace cv { namespace cuda {
checkCudaError(cudaError_t err,const char * file,const int line,const char * func)66     static inline void checkCudaError(cudaError_t err, const char* file, const int line, const char* func)
67     {
68         if (cudaSuccess != err)
69             cv::error(cv::Error::GpuApiCallError, cudaGetErrorString(err), func, file, line);
70     }
71 }}
72 
73 #ifndef cudaSafeCall
74     #define cudaSafeCall(expr)  cv::cuda::checkCudaError(expr, __FILE__, __LINE__, CV_Func)
75 #endif
76 
77 namespace cv { namespace cuda
78 {
isAligned(const T * ptr,size_t size)79     template <typename T> static inline bool isAligned(const T* ptr, size_t size)
80     {
81         return reinterpret_cast<size_t>(ptr) % size == 0;
82     }
83 
isAligned(size_t step,size_t size)84     static inline bool isAligned(size_t step, size_t size)
85     {
86         return step % size == 0;
87     }
88 }}
89 
90 namespace cv { namespace cuda
91 {
92     namespace device
93     {
divUp(int total,int grain)94         __host__ __device__ __forceinline__ int divUp(int total, int grain)
95         {
96             return (total + grain - 1) / grain;
97         }
98 
bindTexture(const textureReference * tex,const PtrStepSz<T> & img)99         template<class T> inline void bindTexture(const textureReference* tex, const PtrStepSz<T>& img)
100         {
101             cudaChannelFormatDesc desc = cudaCreateChannelDesc<T>();
102             cudaSafeCall( cudaBindTexture2D(0, tex, img.ptr(), &desc, img.cols, img.rows, img.step) );
103         }
104     }
105 }}
106 
107 //! @endcond
108 
109 #endif // __OPENCV_CUDA_COMMON_HPP__
110