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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()
: switchModeCalled_(false)
{
}
Controller::Controller(char const *jsonFilename)
: switchModeCalled_(false)
{
read(jsonFilename);
initialise();
}
Controller::~Controller() {}
void Controller::read(char const *filename)
{
boost::property_tree::ptree root;
boost::property_tree::read_json(filename, root);
for (auto const &keyAndValue : root) {
Algorithm *algo = createAlgorithm(keyAndValue.first.c_str());
if (algo) {
algo->read(keyAndValue.second);
algorithms_.push_back(AlgorithmPtr(algo));
} else
LOG(RPiController, Warning)
<< "No algorithm found for \"" << keyAndValue.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 &cameraMode, Metadata *metadata)
{
for (auto &algo : algorithms_)
algo->switchMode(cameraMode, metadata);
switchModeCalled_ = true;
}
void Controller::prepare(Metadata *imageMetadata)
{
assert(switchModeCalled_);
for (auto &algo : algorithms_)
if (!algo->isPaused())
algo->prepare(imageMetadata);
}
void Controller::process(StatisticsPtr stats, Metadata *imageMetadata)
{
assert(switchModeCalled_);
for (auto &algo : algorithms_)
if (!algo->isPaused())
algo->process(stats, imageMetadata);
}
Metadata &Controller::getGlobalMetadata()
{
return globalMetadata_;
}
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 nameLen = name.length();
for (auto &algo : algorithms_) {
char const *algoName = algo->name();
size_t algoNameLen = strlen(algoName);
if (algoNameLen >= nameLen &&
strcasecmp(name.c_str(),
algoName + algoNameLen - nameLen) == 0 &&
(nameLen == algoNameLen ||
algoName[algoNameLen - nameLen - 1] == '.'))
return algo.get();
}
return nullptr;
}
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