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authorKelebek1 <eeeedddccc@hotmail.co.uk>2022-07-17 00:48:45 +0200
committerKelebek1 <eeeedddccc@hotmail.co.uk>2022-07-22 02:11:32 +0200
commit458da8a94877677f086f06cdeecf959ec4283a33 (patch)
tree583166d77602ad90a0d552f37de8729ad80fd6c1 /src/audio_core/renderer/system_manager.h
parentMerge pull request #8598 from Link4565/recv-dontwait (diff)
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diff --git a/src/audio_core/renderer/system_manager.h b/src/audio_core/renderer/system_manager.h
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+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <list>
+#include <memory>
+#include <mutex>
+#include <optional>
+#include <thread>
+
+#include "audio_core/renderer/system.h"
+
+namespace Core {
+namespace Timing {
+struct EventType;
+}
+class System;
+} // namespace Core
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class ADSP;
+class AudioRenderer_Mailbox;
+} // namespace ADSP
+
+/**
+ * Manages all audio renderers, responsible for triggering command list generation and signalling
+ * the ADSP.
+ */
+class SystemManager {
+public:
+ explicit SystemManager(Core::System& core);
+ ~SystemManager();
+
+ /**
+ * Initialize the system manager, called when any system is registered.
+ *
+ * @return True if sucessfully initialized, otherwise false.
+ */
+ bool InitializeUnsafe();
+
+ /**
+ * Stop the system manager.
+ */
+ void Stop();
+
+ /**
+ * Add an audio render system to the manager.
+ * The manager does not own the system, so do not free it without calling Remove.
+ *
+ * @param system - The system to add.
+ * @return True if succesfully added, otherwise false.
+ */
+ bool Add(System& system);
+
+ /**
+ * Remove an audio render system from the manager.
+ *
+ * @param system - The system to remove.
+ * @return True if succesfully removed, otherwise false.
+ */
+ bool Remove(System& system);
+
+private:
+ /**
+ * Main thread responsible for command generation.
+ */
+ void ThreadFunc();
+
+ /**
+ * Signalling core timing thread to run ThreadFunc.
+ */
+ std::optional<std::chrono::nanoseconds> ThreadFunc2(s64 time);
+
+ /**
+ * Callback from core timing when pausing, used to detect shutdowns and stop ThreadFunc.
+ *
+ * @param paused - Are we pausing or resuming?
+ */
+ void PauseCallback(bool paused);
+
+ enum class StreamState {
+ Filling,
+ Steady,
+ Draining,
+ };
+
+ /// Core system
+ Core::System& core;
+ /// List of pointers to managed systems
+ std::list<System*> systems{};
+ /// Main worker thread for generating command lists
+ std::jthread thread;
+ /// Mutex for the systems
+ std::mutex mutex1{};
+ /// Mutex for adding/removing systems
+ std::mutex mutex2{};
+ /// Is the system manager thread active?
+ std::atomic<bool> active{};
+ /// Reference to the ADSP for communication
+ ADSP::ADSP& adsp;
+ /// AudioRenderer mailbox for communication
+ ADSP::AudioRenderer_Mailbox* mailbox{};
+ /// Core timing event to signal main thread
+ std::shared_ptr<Core::Timing::EventType> thread_event;
+ /// Atomic for main thread to wait on
+ std::atomic<bool> update{};
+ /// Current state of the streams
+ StreamState state{StreamState::Filling};
+};
+
+} // namespace AudioCore::AudioRenderer