f4334277
 Hu Chunming
提交3rdparty
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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_DNN_SRC_CUDA4DNN_PRIMITIVES_PERMUTE_HPP
#define OPENCV_DNN_SRC_CUDA4DNN_PRIMITIVES_PERMUTE_HPP
#include "../../op_cuda.hpp"
#include "../csl/stream.hpp"
#include "../csl/tensor_ops.hpp"
#include "../kernels/permute.hpp"
#include <opencv2/core.hpp>
#include <cstddef>
#include <vector>
#include <utility>
namespace cv { namespace dnn { namespace cuda4dnn {
template <class T>
class PermuteOp final : public CUDABackendNode {
public:
using wrapper_type = GetCUDABackendWrapperType<T>;
PermuteOp(csl::Stream stream_, std::vector<std::size_t> order_)
: stream(std::move(stream_)), order(std::move(order_)) { }
void forward(
const std::vector<cv::Ptr<BackendWrapper>>& inputs,
const std::vector<cv::Ptr<BackendWrapper>>& outputs,
csl::Workspace& workspace) override
{
for (int i = 0; i < inputs.size(); i++)
{
auto input_wrapper = inputs[i].dynamicCast<wrapper_type>();
auto input = input_wrapper->getView();
auto output_wrapper = outputs[i].dynamicCast<wrapper_type>();
auto output = output_wrapper->getSpan();
auto needsPermute = [&] {
for (int i = 0; i < order.size(); i++)
if (order[i] != i)
return true;
return false;
}();
if (needsPermute)
{
kernels::permute(stream, output, input, order);
}
else
{
if (input.get() != output.get())
csl::tensor_ops::copy(stream, output, input);
}
}
}
private:
csl::Stream stream;
std::vector<std::size_t> order;
};
}}} /* namespace cv::dnn::cuda4dnn */
#endif /* OPENCV_DNN_SRC_CUDA4DNN_PRIMITIVES_PERMUTE_HPP */
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