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CLK/Analyser/Dynamic/MultiMachine/MultiMachine.cpp
2024-01-19 14:22:23 -05:00

126 lines
3.9 KiB
C++

//
// MultiMachine.cpp
// Clock Signal
//
// Created by Thomas Harte on 28/01/2018.
// Copyright 2018 Thomas Harte. All rights reserved.
//
#include "MultiMachine.hpp"
#include "../../../Outputs/Log.hpp"
#include <algorithm>
namespace {
Log::Logger<Log::Source::MultiMachine> logger;
}
using namespace Analyser::Dynamic;
MultiMachine::MultiMachine(std::vector<std::unique_ptr<DynamicMachine>> &&machines) :
machines_(std::move(machines)),
configurable_(machines_),
timed_machine_(machines_, machines_mutex_),
scan_producer_(machines_, machines_mutex_),
audio_producer_(machines_, machines_mutex_),
joystick_machine_(machines_),
keyboard_machine_(machines_),
media_target_(machines_) {
timed_machine_.set_delegate(this);
}
Activity::Source *MultiMachine::activity_source() {
return nullptr; // TODO
}
#define Provider(type, name, member) \
type *MultiMachine::name() { \
if(has_picked_) { \
return machines_.front()->name(); \
} else { \
return &member; \
} \
}
Provider(Configurable::Device, configurable_device, configurable_)
Provider(MachineTypes::TimedMachine, timed_machine, timed_machine_)
Provider(MachineTypes::ScanProducer, scan_producer, scan_producer_)
Provider(MachineTypes::AudioProducer, audio_producer, audio_producer_)
Provider(MachineTypes::JoystickMachine, joystick_machine, joystick_machine_)
Provider(MachineTypes::KeyboardMachine, keyboard_machine, keyboard_machine_)
Provider(MachineTypes::MediaTarget, media_target, media_target_)
MachineTypes::MouseMachine *MultiMachine::mouse_machine() {
// TODO.
return nullptr;
}
#undef Provider
bool MultiMachine::would_collapse(const std::vector<std::unique_ptr<DynamicMachine>> &machines) {
return
(machines.front()->timed_machine()->get_confidence() > 0.9f) ||
(machines.front()->timed_machine()->get_confidence() >= 2.0f * machines[1]->timed_machine()->get_confidence());
}
void MultiMachine::did_run_machines(MultiTimedMachine *) {
std::lock_guard machines_lock(machines_mutex_);
if constexpr (logger.enabled) {
auto line = logger.info();
for(const auto &machine: machines_) {
auto timed_machine = machine->timed_machine();
line.append("%0.4f %s; ", timed_machine->get_confidence(), timed_machine->debug_type().c_str());
}
}
DynamicMachine *front = machines_.front().get();
std::stable_sort(machines_.begin(), machines_.end(),
[] (const std::unique_ptr<DynamicMachine> &lhs, const std::unique_ptr<DynamicMachine> &rhs){
auto lhs_timed = lhs->timed_machine();
auto rhs_timed = rhs->timed_machine();
return lhs_timed->get_confidence() > rhs_timed->get_confidence();
});
if(machines_.front().get() != front) {
scan_producer_.did_change_machine_order();
audio_producer_.did_change_machine_order();
}
if(would_collapse(machines_)) {
pick_first();
}
}
void MultiMachine::pick_first() {
has_picked_ = true;
// Ensure output rate specifics are properly copied; these may be set only once by the owner,
// but rather than being propagated directly by the MultiSpeaker only the derived computed
// output rate is propagated. So this ensures that if a new derivation is made, it's made correctly.
if(machines_[0]->audio_producer()) {
auto multi_speaker = audio_producer_.get_speaker();
auto specific_speaker = machines_[0]->audio_producer()->get_speaker();
if(specific_speaker && multi_speaker) {
specific_speaker->copy_output_rate(*multi_speaker);
}
}
// TODO: because it is not invalid for a caller to keep a reference to anything previously returned,
// this erase can be added only once the Multi machines that take static copies of the machines list
// are updated.
//
// Example failing use case otherwise: a caller still has reference to the MultiJoystickMachine, and
// it has dangling references to the various JoystickMachines.
//
// This gets into particularly long grass with the MultiConfigurable and its MultiStruct.
// machines_.erase(machines_.begin() + 1, machines_.end());
}
void *MultiMachine::raw_pointer() {
return nullptr;
}