1 files changed, 103 insertions, 0 deletions

diff --git a/src/audio_core/audio_render_manager.h b/src/audio_core/audio_render_manager.h
new file mode 100644
index 000000000..6a508ec56
--- /dev/null
+++ b/src/audio_core/audio_render_manager.h
@@ -0,0 +1,103 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <memory>
+#include <mutex>
+
+#include "audio_core/common/common.h"
+#include "audio_core/renderer/system_manager.h"
+#include "core/hle/service/audio/errors.h"
+
+namespace Core {
+class System;
+}
+
+namespace AudioCore {
+struct AudioRendererParameterInternal;
+
+namespace AudioRenderer {
+/**
+ * Wrapper for the audio system manager, handles service calls.
+ */
+class Manager {
+public:
+    explicit Manager(Core::System& system);
+    ~Manager();
+
+    /**
+     * Stop the manager.
+     */
+    void Stop();
+
+    /**
+     * Get the system manager.
+     *
+     * @return The system manager.
+     */
+    SystemManager& GetSystemManager();
+
+    /**
+     * Get required size for the audio renderer workbuffer.
+     *
+     * @param params    - Input parameters with the numbers of voices/mixes/sinks etc.
+     * @param out_count - Output size of the required workbuffer.
+     * @return Result code.
+     */
+    Result GetWorkBufferSize(const AudioRendererParameterInternal& params, u64& out_count);
+
+    /**
+     * Get a new session id.
+     *
+     * @return The new session id. -1 if invalid, otherwise 0-MaxRendererSessions.
+     */
+    s32 GetSessionId();
+
+    /**
+     * Get the number of currently active sessions.
+     *
+     * @return The number of active sessions.
+     */
+    u32 GetSessionCount();
+
+    /**
+     * Add a renderer system to the manager.
+     * The system will be reguarly called to generate commands for the AudioRenderer.
+     *
+     * @param system - The system to add.
+     * @return True if the system was sucessfully added, otherwise false.
+     */
+    bool AddSystem(System& system);
+
+    /**
+     * Remove a renderer system from the manager.
+     *
+     * @param system - The system to remove.
+     * @return True if the system was sucessfully removed, otherwise false.
+     */
+    bool RemoveSystem(System& system);
+
+    /**
+     * Free a session id when the system wants to shut down.
+     *
+     * @param session_id - The session id to free.
+     */
+    void ReleaseSessionId(s32 session_id);
+
+private:
+    /// Core system
+    Core::System& system;
+    /// Session ids, -1 when in use
+    std::array<s32, MaxRendererSessions> session_ids{};
+    /// Number of active renderers
+    u32 session_count{};
+    /// Lock for interacting with the sessions
+    std::mutex session_lock{};
+    /// Regularly generates commands from the registered systems for the AudioRenderer
+    std::unique_ptr<SystemManager> system_manager{};
+};
+
+} // namespace AudioRenderer
+} // namespace AudioCore