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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2019, Raspberry Pi (Trading) Limited
*
* controller.cpp - ISP controller
*/
#include <libcamera/base/log.h>
#include "algorithm.hpp"
#include "controller.hpp"
#include <boost/property_tree/json_parser.hpp>
#include <boost/property_tree/ptree.hpp>
using namespace RPiController;
using namespace libcamera;
LOG_DEFINE_CATEGORY(RPiController)
Controller::Controller()
: switch_mode_called_(false) {}
Controller::Controller(char const *json_filename)
: switch_mode_called_(false)
{
Read(json_filename);
Initialise();
}
Controller::~Controller() {}
void Controller::Read(char const *filename)
{
boost::property_tree::ptree root;
boost::property_tree::read_json(filename, root);
for (auto const &key_and_value : root) {
Algorithm *algo = CreateAlgorithm(key_and_value.first.c_str());
if (algo) {
algo->Read(key_and_value.second);
algorithms_.push_back(AlgorithmPtr(algo));
} else
LOG(RPiController, Warning)
<< "No algorithm found for \"" << key_and_value.first << "\"";
}
}
Algorithm *Controller::CreateAlgorithm(char const *name)
{
auto it = GetAlgorithms().find(std::string(name));
return it != GetAlgorithms().end() ? (*it->second)(this) : nullptr;
}
void Controller::Initialise()
{
for (auto &algo : algorithms_)
algo->Initialise();
}
void Controller::SwitchMode(CameraMode const &camera_mode, Metadata *metadata)
{
for (auto &algo : algorithms_)
algo->SwitchMode(camera_mode, metadata);
switch_mode_called_ = true;
}
void Controller::Prepare(Metadata *image_metadata)
{
assert(switch_mode_called_);
for (auto &algo : algorithms_)
if (!algo->IsPaused())
algo->Prepare(image_metadata);
}
void Controller::Process(StatisticsPtr stats, Metadata *image_metadata)
{
assert(switch_mode_called_);
for (auto &algo : algorithms_)
if (!algo->IsPaused())
algo->Process(stats, image_metadata);
}
Metadata &Controller::GetGlobalMetadata()
{
return global_metadata_;
}
Algorithm *Controller::GetAlgorithm(std::string const &name) const
{
// The passed name must be the entire algorithm name, or must match the
// last part of it with a period (.) just before.
size_t name_len = name.length();
for (auto &algo : algorithms_) {
char const *algo_name = algo->Name();
size_t algo_name_len = strlen(algo_name);
if (algo_name_len >= name_len &&
strcasecmp(name.c_str(),
algo_name + algo_name_len - name_len) == 0 &&
(name_len == algo_name_len ||
algo_name[algo_name_len - name_len - 1] == '.'))
return algo.get();
}
return nullptr;
}
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