mirror of https://github.com/opencv/opencv.git
Merge pull request #3164 from jet47:fix-cuda-lut
Vadim Pisarevsky
10 years ago
commit
1984aacb27
2 changed files with 164 additions and 69 deletions
@ -0,0 +1,151 @@ |
||||
/*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*/ |
||||
|
||||
#if !defined CUDA_DISABLER |
||||
|
||||
#include <cstring> |
||||
#include "opencv2/gpu/device/common.hpp" |
||||
#include "opencv2/gpu/device/transform.hpp" |
||||
#include "opencv2/gpu/device/functional.hpp" |
||||
|
||||
using namespace cv::gpu; |
||||
using namespace cv::gpu::device; |
||||
|
||||
namespace |
||||
{ |
||||
texture<uchar, cudaTextureType1D, cudaReadModeElementType> texLutTable; |
||||
|
||||
struct LutC1 : public unary_function<uchar, uchar> |
||||
{ |
||||
typedef uchar value_type; |
||||
typedef uchar index_type; |
||||
|
||||
cudaTextureObject_t texLutTableObj; |
||||
|
||||
__device__ __forceinline__ uchar operator ()(uchar x) const |
||||
{ |
||||
#if defined(__CUDA_ARCH__) && (__CUDA_ARCH__ < 300) |
||||
// Use the texture reference |
||||
return tex1Dfetch(texLutTable, x); |
||||
#else |
||||
// Use the texture object |
||||
return tex1Dfetch<uchar>(texLutTableObj, x); |
||||
#endif |
||||
} |
||||
}; |
||||
struct LutC3 : public unary_function<uchar3, uchar3> |
||||
{ |
||||
typedef uchar3 value_type; |
||||
typedef uchar3 index_type; |
||||
|
||||
cudaTextureObject_t texLutTableObj; |
||||
|
||||
__device__ __forceinline__ uchar3 operator ()(const uchar3& x) const |
||||
{ |
||||
#if defined(__CUDA_ARCH__) && (__CUDA_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 |
||||
} |
||||
}; |
||||
} |
||||
|
||||
namespace arithm |
||||
{ |
||||
void lut(PtrStepSzb src, uchar* lut, int lut_cn, PtrStepSzb dst, bool cc30, cudaStream_t stream) |
||||
{ |
||||
cudaTextureObject_t texLutTableObj; |
||||
|
||||
if (cc30) |
||||
{ |
||||
// Use the texture object |
||||
cudaResourceDesc texRes; |
||||
std::memset(&texRes, 0, sizeof(texRes)); |
||||
texRes.resType = cudaResourceTypeLinear; |
||||
texRes.res.linear.devPtr = lut; |
||||
texRes.res.linear.desc = cudaCreateChannelDesc<uchar>(); |
||||
texRes.res.linear.sizeInBytes = 256 * lut_cn * sizeof(uchar); |
||||
|
||||
cudaTextureDesc texDescr; |
||||
std::memset(&texDescr, 0, sizeof(texDescr)); |
||||
|
||||
cudaSafeCall( cudaCreateTextureObject(&texLutTableObj, &texRes, &texDescr, 0) ); |
||||
} |
||||
else |
||||
{ |
||||
// Use the texture reference |
||||
cudaChannelFormatDesc desc = cudaCreateChannelDesc<uchar>(); |
||||
cudaSafeCall( cudaBindTexture(0, &texLutTable, lut, &desc) ); |
||||
} |
||||
|
||||
if (lut_cn == 1) |
||||
{ |
||||
LutC1 op; |
||||
op.texLutTableObj = texLutTableObj; |
||||
|
||||
transform((PtrStepSz<uchar>) src, (PtrStepSz<uchar>) dst, op, WithOutMask(), stream); |
||||
} |
||||
else if (lut_cn == 3) |
||||
{ |
||||
LutC3 op; |
||||
op.texLutTableObj = texLutTableObj; |
||||
|
||||
transform((PtrStepSz<uchar3>) src, (PtrStepSz<uchar3>) dst, op, WithOutMask(), stream); |
||||
} |
||||
|
||||
if (cc30) |
||||
{ |
||||
// Use the texture object |
||||
cudaSafeCall( cudaDestroyTextureObject(texLutTableObj) ); |
||||
} |
||||
else |
||||
{ |
||||
// Use the texture reference |
||||
cudaSafeCall( cudaUnbindTexture(texLutTable) ); |
||||
} |
||||
} |
||||
} |
||||
|
||||
#endif |
||||
Loading…
Reference in new issue