110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
// Copyright 2019 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "mediapipe/framework/subgraph.h"
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#include <fstream>
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#include <iostream>
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#include <sstream>
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#include "mediapipe/framework/port/ret_check.h"
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#include "mediapipe/framework/tool/template_expander.h"
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namespace mediapipe {
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Subgraph::Subgraph() {}
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Subgraph::~Subgraph() {}
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ProtoSubgraph::ProtoSubgraph(const CalculatorGraphConfig& config)
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: config_(config) {}
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ProtoSubgraph::~ProtoSubgraph() {}
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absl::StatusOr<CalculatorGraphConfig> ProtoSubgraph::GetConfig(
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const Subgraph::SubgraphOptions& options) {
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return config_;
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}
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TemplateSubgraph::TemplateSubgraph(const CalculatorGraphTemplate& templ)
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: templ_(templ) {}
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TemplateSubgraph::~TemplateSubgraph() {}
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absl::StatusOr<CalculatorGraphConfig> TemplateSubgraph::GetConfig(
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const Subgraph::SubgraphOptions& options) {
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TemplateDict arguments =
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Subgraph::GetOptions<mediapipe::TemplateSubgraphOptions>(options).dict();
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tool::TemplateExpander expander;
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CalculatorGraphConfig config;
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MP_RETURN_IF_ERROR(expander.ExpandTemplates(arguments, templ_, &config));
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return config;
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}
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GraphRegistry GraphRegistry::global_graph_registry;
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GraphRegistry::GraphRegistry()
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: global_factories_(SubgraphRegistry::functions()) {}
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GraphRegistry::GraphRegistry(
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FunctionRegistry<std::unique_ptr<Subgraph>>* factories)
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: global_factories_(factories) {}
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void GraphRegistry::Register(
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const std::string& type_name,
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std::function<std::unique_ptr<Subgraph>()> factory) {
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local_factories_.Register(type_name, factory);
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}
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// TODO: Remove this convenience function.
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void GraphRegistry::Register(const std::string& type_name,
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const CalculatorGraphConfig& config) {
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local_factories_.Register(type_name, [config] {
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auto result = absl::make_unique<ProtoSubgraph>(config);
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return std::unique_ptr<Subgraph>(result.release());
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});
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}
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// TODO: Remove this convenience function.
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void GraphRegistry::Register(const std::string& type_name,
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const CalculatorGraphTemplate& templ) {
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local_factories_.Register(type_name, [templ] {
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auto result = absl::make_unique<TemplateSubgraph>(templ);
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return std::unique_ptr<Subgraph>(result.release());
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});
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}
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bool GraphRegistry::IsRegistered(const std::string& ns,
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const std::string& type_name) const {
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return local_factories_.IsRegistered(ns, type_name) ||
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global_factories_->IsRegistered(ns, type_name);
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}
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absl::StatusOr<CalculatorGraphConfig> GraphRegistry::CreateByName(
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const std::string& ns, const std::string& type_name,
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SubgraphContext* context) const {
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absl::StatusOr<std::unique_ptr<Subgraph>> maker =
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local_factories_.IsRegistered(ns, type_name)
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? local_factories_.Invoke(ns, type_name)
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: global_factories_->Invoke(ns, type_name);
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MP_RETURN_IF_ERROR(maker.status());
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if (context != nullptr) {
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return maker.value()->GetConfig(context);
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}
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SubgraphContext default_context;
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return maker.value()->GetConfig(&default_context);
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}
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} // namespace mediapipe
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