254 lines
8.0 KiB
C++
254 lines
8.0 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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// Copyright (C) 2013, OpenCV Foundation, 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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#pragma once
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#ifndef __OPENCV_CUDEV_PTR2D_TEXTURE_HPP__
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#define __OPENCV_CUDEV_PTR2D_TEXTURE_HPP__
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#include <cstring>
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#include "../common.hpp"
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#include "glob.hpp"
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#include "gpumat.hpp"
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#include "traits.hpp"
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#if CUDART_VERSION >= 5050
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namespace
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{
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template <typename T> struct CvCudevTextureRef
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{
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typedef texture<T, cudaTextureType2D, cudaReadModeElementType> TexRef;
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static TexRef ref;
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__host__ static void bind(const cv::cudev::GlobPtrSz<T>& mat,
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bool normalizedCoords = false,
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cudaTextureFilterMode filterMode = cudaFilterModePoint,
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cudaTextureAddressMode addressMode = cudaAddressModeClamp)
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{
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ref.normalized = normalizedCoords;
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ref.filterMode = filterMode;
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ref.addressMode[0] = addressMode;
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ref.addressMode[1] = addressMode;
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ref.addressMode[2] = addressMode;
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cudaChannelFormatDesc desc = cudaCreateChannelDesc<T>();
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CV_CUDEV_SAFE_CALL( cudaBindTexture2D(0, &ref, mat.data, &desc, mat.cols, mat.rows, mat.step) );
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}
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__host__ static void unbind()
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{
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cudaUnbindTexture(ref);
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}
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};
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template <typename T>
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typename CvCudevTextureRef<T>::TexRef CvCudevTextureRef<T>::ref;
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}
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#endif
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namespace cv { namespace cudev {
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#if CUDART_VERSION >= 5050
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template <typename T> struct TexturePtr
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{
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typedef T value_type;
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typedef float index_type;
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cudaTextureObject_t texObj;
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__device__ __forceinline__ T operator ()(float y, float x) const
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{
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#if CV_CUDEV_ARCH < 300
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// Use the texture reference
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return tex2D(CvCudevTextureRef<T>::ref, x, y);
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#else
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// Use the texture object
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return tex2D<T>(texObj, x, y);
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#endif
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}
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};
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template <typename T> struct Texture : TexturePtr<T>
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{
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int rows, cols;
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bool cc30;
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__host__ explicit Texture(const GlobPtrSz<T>& mat,
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bool normalizedCoords = false,
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cudaTextureFilterMode filterMode = cudaFilterModePoint,
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cudaTextureAddressMode addressMode = cudaAddressModeClamp)
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{
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cc30 = deviceSupports(FEATURE_SET_COMPUTE_30);
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rows = mat.rows;
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cols = mat.cols;
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if (cc30)
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{
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// Use the texture object
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cudaResourceDesc texRes;
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std::memset(&texRes, 0, sizeof(texRes));
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texRes.resType = cudaResourceTypePitch2D;
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texRes.res.pitch2D.devPtr = mat.data;
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texRes.res.pitch2D.height = mat.rows;
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texRes.res.pitch2D.width = mat.cols;
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texRes.res.pitch2D.pitchInBytes = mat.step;
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texRes.res.pitch2D.desc = cudaCreateChannelDesc<T>();
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cudaTextureDesc texDescr;
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std::memset(&texDescr, 0, sizeof(texDescr));
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texDescr.normalizedCoords = normalizedCoords;
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texDescr.filterMode = filterMode;
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texDescr.addressMode[0] = addressMode;
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texDescr.addressMode[1] = addressMode;
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texDescr.addressMode[2] = addressMode;
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texDescr.readMode = cudaReadModeElementType;
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CV_CUDEV_SAFE_CALL( cudaCreateTextureObject(&this->texObj, &texRes, &texDescr, 0) );
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}
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else
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{
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// Use the texture reference
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CvCudevTextureRef<T>::bind(mat, normalizedCoords, filterMode, addressMode);
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}
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}
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__host__ ~Texture()
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{
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if (cc30)
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{
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// Use the texture object
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cudaDestroyTextureObject(this->texObj);
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}
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else
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{
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// Use the texture reference
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CvCudevTextureRef<T>::unbind();
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}
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}
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};
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template <typename T> struct PtrTraits< Texture<T> > : PtrTraitsBase<Texture<T>, TexturePtr<T> >
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{
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};
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#else
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template <typename T> struct TexturePtr
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{
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typedef T value_type;
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typedef float index_type;
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cudaTextureObject_t texObj;
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__device__ __forceinline__ T operator ()(float y, float x) const
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{
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#if CV_CUDEV_ARCH >= 300
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// Use the texture object
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return tex2D<T>(texObj, x, y);
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#else
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(void) y;
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(void) x;
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return T();
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#endif
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}
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};
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template <typename T> struct Texture : TexturePtr<T>
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{
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int rows, cols;
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__host__ explicit Texture(const GlobPtrSz<T>& mat,
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bool normalizedCoords = false,
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cudaTextureFilterMode filterMode = cudaFilterModePoint,
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cudaTextureAddressMode addressMode = cudaAddressModeClamp)
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{
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CV_Assert( deviceSupports(FEATURE_SET_COMPUTE_30) );
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rows = mat.rows;
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cols = mat.cols;
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// Use the texture object
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cudaResourceDesc texRes;
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std::memset(&texRes, 0, sizeof(texRes));
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texRes.resType = cudaResourceTypePitch2D;
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texRes.res.pitch2D.devPtr = mat.data;
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texRes.res.pitch2D.height = mat.rows;
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texRes.res.pitch2D.width = mat.cols;
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texRes.res.pitch2D.pitchInBytes = mat.step;
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texRes.res.pitch2D.desc = cudaCreateChannelDesc<T>();
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cudaTextureDesc texDescr;
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std::memset(&texDescr, 0, sizeof(texDescr));
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texDescr.normalizedCoords = normalizedCoords;
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texDescr.filterMode = filterMode;
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texDescr.addressMode[0] = addressMode;
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texDescr.addressMode[1] = addressMode;
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texDescr.addressMode[2] = addressMode;
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texDescr.readMode = cudaReadModeElementType;
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CV_CUDEV_SAFE_CALL( cudaCreateTextureObject(&this->texObj, &texRes, &texDescr, 0) );
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}
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__host__ ~Texture()
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{
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// Use the texture object
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cudaDestroyTextureObject(this->texObj);
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}
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};
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template <typename T> struct PtrTraits< Texture<T> > : PtrTraitsBase<Texture<T>, TexturePtr<T> >
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{
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};
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#endif
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}}
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#endif
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