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// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <chrono>
#include "audio_core/audio_core.h"
#include "audio_core/renderer/adsp/adsp.h"
#include "audio_core/renderer/system_manager.h"
#include "common/microprofile.h"
#include "common/thread.h"
#include "core/core.h"
#include "core/core_timing.h"
MICROPROFILE_DEFINE(Audio_RenderSystemManager, "Audio", "Render System Manager",
MP_RGB(60, 19, 97));
namespace AudioCore::AudioRenderer {
constexpr std::chrono::nanoseconds BaseRenderTime{5'000'000UL};
constexpr std::chrono::nanoseconds RenderTimeOffset{400'000UL};
SystemManager::SystemManager(Core::System& core_)
: core{core_}, adsp{core.AudioCore().GetADSP()}, mailbox{adsp.GetRenderMailbox()},
thread_event{Core::Timing::CreateEvent(
"AudioRendererSystemManager", [this](std::uintptr_t, s64 time, std::chrono::nanoseconds) {
return ThreadFunc2(time);
})} {
core.CoreTiming().RegisterPauseCallback([this](bool paused) { PauseCallback(paused); });
}
SystemManager::~SystemManager() {
Stop();
}
bool SystemManager::InitializeUnsafe() {
if (!active) {
if (adsp.Start()) {
active = true;
thread = std::jthread([this](std::stop_token stop_token) { ThreadFunc(); });
core.CoreTiming().ScheduleLoopingEvent(std::chrono::nanoseconds(0),
BaseRenderTime - RenderTimeOffset, thread_event);
}
}
return adsp.GetState() == ADSP::State::Started;
}
void SystemManager::Stop() {
if (!active) {
return;
}
core.CoreTiming().UnscheduleEvent(thread_event, {});
active = false;
update.store(true);
update.notify_all();
thread.join();
adsp.Stop();
}
bool SystemManager::Add(System& system_) {
std::scoped_lock l2{mutex2};
if (systems.size() + 1 > MaxRendererSessions) {
LOG_ERROR(Service_Audio, "Maximum AudioRenderer Systems active, cannot add more!");
return false;
}
{
std::scoped_lock l{mutex1};
if (systems.empty()) {
if (!InitializeUnsafe()) {
LOG_ERROR(Service_Audio, "Failed to start the AudioRenderer SystemManager");
return false;
}
}
}
systems.push_back(&system_);
return true;
}
bool SystemManager::Remove(System& system_) {
std::scoped_lock l2{mutex2};
{
std::scoped_lock l{mutex1};
if (systems.remove(&system_) == 0) {
LOG_ERROR(Service_Audio,
"Failed to remove a render system, it was not found in the list!");
return false;
}
}
if (systems.empty()) {
Stop();
}
return true;
}
void SystemManager::ThreadFunc() {
constexpr char name[]{"yuzu:AudioRenderSystemManager"};
MicroProfileOnThreadCreate(name);
Common::SetCurrentThreadName(name);
Common::SetCurrentThreadPriority(Common::ThreadPriority::High);
while (active) {
{
std::scoped_lock l{mutex1};
MICROPROFILE_SCOPE(Audio_RenderSystemManager);
for (auto system : systems) {
system->SendCommandToDsp();
}
}
adsp.Signal();
adsp.Wait();
update.wait(false);
update.store(false);
}
}
std::optional<std::chrono::nanoseconds> SystemManager::ThreadFunc2(s64 time) {
std::optional<std::chrono::nanoseconds> new_schedule_time{std::nullopt};
const auto queue_size{core.AudioCore().GetStreamQueue()};
switch (state) {
case StreamState::Filling:
if (queue_size >= 5) {
new_schedule_time = BaseRenderTime;
state = StreamState::Steady;
}
break;
case StreamState::Steady:
if (queue_size <= 2) {
new_schedule_time = BaseRenderTime - RenderTimeOffset;
state = StreamState::Filling;
} else if (queue_size > 5) {
new_schedule_time = BaseRenderTime + RenderTimeOffset;
state = StreamState::Draining;
}
break;
case StreamState::Draining:
if (queue_size <= 5) {
new_schedule_time = BaseRenderTime;
state = StreamState::Steady;
}
break;
}
update.store(true);
update.notify_all();
return new_schedule_time;
}
void SystemManager::PauseCallback(bool paused) {
if (paused && core.IsPoweredOn() && core.IsShuttingDown()) {
update.store(true);
update.notify_all();
}
}
} // namespace AudioCore::AudioRenderer
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