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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 Intel Corporation
#ifndef OPENCV_GAPI_GMODEL_BUILDER_HPP
#define OPENCV_GAPI_GMODEL_BUILDER_HPP
#include <map>
#include <unordered_map>
#include "opencv2/gapi/gproto.hpp"
#include "opencv2/gapi/gcall.hpp"
#include "api/gapi_priv.hpp"
#include "api/gnode.hpp"
#include "compiler/gmodel.hpp"
namespace cv { namespace gimpl {
struct Unrolled
{
std::vector<cv::GNode> all_ops;
GOriginSet all_data;
// NB.: Right now, as G-API operates with GMats only and that
// GMats have no type or dimensions (when a computation is built),
// track only origins (data links) with no any additional meta.
};
// FIXME: GAPI_EXPORTS only because of tests!!!
GAPI_EXPORTS Unrolled unrollExpr(const GProtoArgs &ins, const GProtoArgs &outs);
// This class generates an ADE graph with G-API specific metadata
// to represent user-specified computation in terms of graph model
//
// Resulting graph is built according to the following rules:
// - Every operation is a node
// - Every dynamic object (GMat) is a node
// - Edges between nodes represent producer/consumer relationships
// between operations and data objects.
// FIXME: GAPI_EXPORTS only because of tests!!!
class GAPI_EXPORTS GModelBuilder
{
GModel::Graph m_g;
// Mappings of G-API user framework entities to ADE node handles
std::unordered_map<const cv::GNode::Priv*, ade::NodeHandle> m_graph_ops;
GOriginMap<ade::NodeHandle> m_graph_data;
// Internal methods for mapping APIs into ADE during put()
ade::NodeHandle put_OpNode(const cv::GNode &node);
ade::NodeHandle put_DataNode(const cv::GOrigin &origin);
public:
explicit GModelBuilder(ade::Graph &g);
// TODO: replace GMat with a generic type
// TODO: Cover with tests! (as the rest of internal stuff)
// FIXME: Calling this method multiple times is currently UB
// TODO: add a semantic link between "ints" returned and in-model data IDs.
typedef std::tuple<std::vector<RcDesc>,
std::vector<RcDesc>,
std::vector<ade::NodeHandle>,
std::vector<ade::NodeHandle> > ProtoSlots;
ProtoSlots put(const GProtoArgs &ins, const GProtoArgs &outs);
protected:
ade::NodeHandle opNode(cv::GMat gmat);
};
}}
#endif // OPENCV_GAPI_GMODEL_BUILDER_HPP