used new device layer for cv::cuda::LUT
This commit is contained in:
Vladislav Vinogradov
207
modules/cudaarithm/src/cuda/lut.cu
Normal file
207
modules/cudaarithm/src/cuda/lut.cu
Normal file
@@ -0,0 +1,207 @@
|
||||
/*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*/
|
||||
|
||||
#include "opencv2/opencv_modules.hpp"
|
||||
|
||||
#ifndef HAVE_OPENCV_CUDEV
|
||||
|
||||
#error "opencv_cudev is required"
|
||||
|
||||
#else
|
||||
|
||||
#include "opencv2/cudaarithm.hpp"
|
||||
#include "opencv2/cudev.hpp"
|
||||
|
||||
using namespace cv;
|
||||
using namespace cv::cudev;
|
||||
|
||||
namespace
|
||||
{
|
||||
texture<uchar, cudaTextureType1D, cudaReadModeElementType> texLutTable;
|
||||
|
||||
class LookUpTableImpl : public LookUpTable
|
||||
{
|
||||
public:
|
||||
LookUpTableImpl(InputArray lut);
|
||||
~LookUpTableImpl();
|
||||
|
||||
void transform(InputArray src, OutputArray dst, Stream& stream = Stream::Null());
|
||||
|
||||
private:
|
||||
GpuMat d_lut;
|
||||
cudaTextureObject_t texLutTableObj;
|
||||
bool cc30;
|
||||
};
|
||||
|
||||
LookUpTableImpl::LookUpTableImpl(InputArray _lut)
|
||||
{
|
||||
if (_lut.kind() == _InputArray::GPU_MAT)
|
||||
{
|
||||
d_lut = _lut.getGpuMat();
|
||||
}
|
||||
else
|
||||
{
|
||||
Mat h_lut = _lut.getMat();
|
||||
d_lut.upload(Mat(1, 256, h_lut.type(), h_lut.data));
|
||||
}
|
||||
|
||||
CV_Assert( d_lut.depth() == CV_8U );
|
||||
CV_Assert( d_lut.rows == 1 && d_lut.cols == 256 );
|
||||
|
||||
cc30 = deviceSupports(FEATURE_SET_COMPUTE_30);
|
||||
|
||||
if (cc30)
|
||||
{
|
||||
// Use the texture object
|
||||
cudaResourceDesc texRes;
|
||||
std::memset(&texRes, 0, sizeof(texRes));
|
||||
texRes.resType = cudaResourceTypeLinear;
|
||||
texRes.res.linear.devPtr = d_lut.data;
|
||||
texRes.res.linear.desc = cudaCreateChannelDesc<uchar>();
|
||||
texRes.res.linear.sizeInBytes = 256 * d_lut.channels() * sizeof(uchar);
|
||||
|
||||
cudaTextureDesc texDescr;
|
||||
std::memset(&texDescr, 0, sizeof(texDescr));
|
||||
|
||||
CV_CUDEV_SAFE_CALL( cudaCreateTextureObject(&texLutTableObj, &texRes, &texDescr, 0) );
|
||||
}
|
||||
else
|
||||
{
|
||||
// Use the texture reference
|
||||
cudaChannelFormatDesc desc = cudaCreateChannelDesc<uchar>();
|
||||
CV_CUDEV_SAFE_CALL( cudaBindTexture(0, &texLutTable, d_lut.data, &desc) );
|
||||
}
|
||||
}
|
||||
|
||||
LookUpTableImpl::~LookUpTableImpl()
|
||||
{
|
||||
if (cc30)
|
||||
{
|
||||
// Use the texture object
|
||||
cudaDestroyTextureObject(texLutTableObj);
|
||||
}
|
||||
else
|
||||
{
|
||||
// Use the texture reference
|
||||
cudaUnbindTexture(texLutTable);
|
||||
}
|
||||
}
|
||||
|
||||
struct LutTablePtrC1
|
||||
{
|
||||
typedef uchar value_type;
|
||||
typedef uchar index_type;
|
||||
|
||||
cudaTextureObject_t texLutTableObj;
|
||||
|
||||
__device__ __forceinline__ uchar operator ()(uchar, uchar x) const
|
||||
{
|
||||
#if CV_CUDEV_ARCH < 300
|
||||
// Use the texture reference
|
||||
return tex1Dfetch(texLutTable, x);
|
||||
#else
|
||||
// Use the texture object
|
||||
return tex1Dfetch<uchar>(texLutTableObj, x);
|
||||
#endif
|
||||
}
|
||||
};
|
||||
struct LutTablePtrC3
|
||||
{
|
||||
typedef uchar3 value_type;
|
||||
typedef uchar3 index_type;
|
||||
|
||||
cudaTextureObject_t texLutTableObj;
|
||||
|
||||
__device__ __forceinline__ uchar3 operator ()(const uchar3&, const uchar3& x) const
|
||||
{
|
||||
#if CV_CUDEV_ARCH < 300
|
||||
// Use the texture reference
|
||||
return make_uchar3(tex1Dfetch(texLutTable, x.x * 3), tex1Dfetch(texLutTable, x.y * 3 + 1), tex1Dfetch(texLutTable, x.z * 3 + 2));
|
||||
#else
|
||||
// Use the texture object
|
||||
return make_uchar3(tex1Dfetch<uchar>(texLutTableObj, x.x * 3), tex1Dfetch<uchar>(texLutTableObj, x.y * 3 + 1), tex1Dfetch<uchar>(texLutTableObj, x.z * 3 + 2));
|
||||
#endif
|
||||
}
|
||||
};
|
||||
|
||||
void LookUpTableImpl::transform(InputArray _src, OutputArray _dst, Stream& stream)
|
||||
{
|
||||
GpuMat src = _src.getGpuMat();
|
||||
|
||||
const int cn = src.channels();
|
||||
const int lut_cn = d_lut.channels();
|
||||
|
||||
CV_Assert( src.type() == CV_8UC1 || src.type() == CV_8UC3 );
|
||||
CV_Assert( lut_cn == 1 || lut_cn == cn );
|
||||
|
||||
_dst.create(src.size(), src.type());
|
||||
GpuMat dst = _dst.getGpuMat();
|
||||
|
||||
if (lut_cn == 1)
|
||||
{
|
||||
GpuMat_<uchar> src1(src.reshape(1));
|
||||
GpuMat_<uchar> dst1(dst.reshape(1));
|
||||
|
||||
LutTablePtrC1 tbl;
|
||||
tbl.texLutTableObj = texLutTableObj;
|
||||
|
||||
dst1.assign(lut_(src1, tbl), stream);
|
||||
}
|
||||
else if (lut_cn == 3)
|
||||
{
|
||||
GpuMat_<uchar3>& src3 = (GpuMat_<uchar3>&) src;
|
||||
GpuMat_<uchar3>& dst3 = (GpuMat_<uchar3>&) dst;
|
||||
|
||||
LutTablePtrC3 tbl;
|
||||
tbl.texLutTableObj = texLutTableObj;
|
||||
|
||||
dst3.assign(lut_(src3, tbl), stream);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Ptr<LookUpTable> cv::cuda::createLookUpTable(InputArray lut)
|
||||
{
|
||||
return makePtr<LookUpTableImpl>(lut);
|
||||
}
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user