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.
//
// Copyright (C) 2018-2020 Intel Corporation
#ifndef OPENCV_GAPI_GCPUBACKEND_HPP
#define OPENCV_GAPI_GCPUBACKEND_HPP
#include <map> // map
#include <unordered_map> // unordered_map
#include <tuple> // tuple
#include <ade/util/algorithm.hpp> // type_list_index
#include <opencv2/gapi/garg.hpp>
#include <opencv2/gapi/gproto.hpp>
#include <opencv2/gapi/cpu/gcpukernel.hpp>
#include "api/gorigin.hpp"
#include "backends/common/gbackend.hpp"
#include "compiler/gislandmodel.hpp"
namespace cv { namespace gimpl {
struct CPUUnit
{
static const char *name() { return "HostKernel"; }
GCPUKernel k;
};
class GCPUExecutable final: public GIslandExecutable
{
const ade::Graph &m_g;
GModel::ConstGraph m_gm;
const cv::GCompileArgs m_compileArgs;
struct OperationInfo
{
ade::NodeHandle nh;
GMetaArgs expected_out_metas;
};
// Execution script, currently absolutely naive
std::vector<OperationInfo> m_script;
// TODO: Check that it is thread-safe
// Map of stateful kernel nodes to their kernels' states
std::unordered_map<ade::NodeHandle, GArg,
ade::HandleHasher<ade::Node>> m_nodesToStates;
// List of all resources in graph (both internal and external)
std::vector<ade::NodeHandle> m_dataNodes;
// Actual data of all resources in graph (both internal and external)
Mag m_res;
// Flag which identifies if new stream was started
bool m_newStreamStarted = false;
GArg packArg(const GArg &arg);
void setupKernelStates();
public:
GCPUExecutable(const ade::Graph &graph,
const cv::GCompileArgs &compileArgs,
const std::vector<ade::NodeHandle> &nodes);
virtual inline bool canReshape() const override { return false; }
virtual inline void reshape(ade::Graph&, const GCompileArgs&) override
{
// FIXME: CPU plugin is in fact reshapeable (as it was initially,
// even before outMeta() has been introduced), so this limitation
// should be dropped.
util::throw_error(std::logic_error("GCPUExecutable::reshape() should never be called"));
}
virtual void handleNewStream() override;
virtual void run(std::vector<InObj> &&input_objs,
std::vector<OutObj> &&output_objs) override;
};
}}
#endif // OPENCV_GAPI_GCPUBACKEND_HPP
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