cudal2.cpp
2.12 KB
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright 2016 Colin Heinzmann *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <iostream>
using namespace std;
#include <openbr/plugins/openbr_internal.h>
// definitions from the CUDA source file
namespace br { namespace cuda { namespace L2 {
void wrapper(float const* aPtr, float const* bPtr, int length, float* outPtr);
}}}
namespace br
{
/*!
* \ingroup distances
* \brief L2 distance computed using eigen.
* \author Colin Heinzmann \cite DepthDeluxe
*/
class CUDAL2Distance : public UntrainableDistance
{
Q_OBJECT
float compare(const cv::Mat &a, const cv::Mat &b) const
{
if (a.type() != CV_32FC1 || b.type() != CV_32FC1) {
cout << "ERR: Type mismatch" << endl;
throw 0;
}
if (a.rows*a.cols != b.rows*b.cols) {
cout << "ERR: Dimension mismatch" << endl;
throw 1;
}
float out;
cuda::L2::wrapper(a.ptr<float>(), b.ptr<float>(), a.rows*a.cols, &out);
return out;
}
};
BR_REGISTER(Distance, CUDAL2Distance)
} // namespace br
#include "cuda/cudal2.moc"