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-rw-r--r--src/audio_core/renderer/adsp/adsp.h171
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diff --git a/src/audio_core/renderer/adsp/adsp.h b/src/audio_core/renderer/adsp/adsp.h
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-// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <memory>
-#include <mutex>
-
-#include "audio_core/renderer/adsp/audio_renderer.h"
-#include "common/common_types.h"
-
-namespace Core {
-namespace Memory {
-class Memory;
-}
-class System;
-} // namespace Core
-
-namespace AudioCore {
-namespace Sink {
-class Sink;
-}
-
-namespace AudioRenderer::ADSP {
-struct CommandBuffer;
-
-enum class State {
- Started,
- Stopped,
-};
-
-/**
- * Represents the ADSP embedded within the audio sysmodule.
- * This is a 32-bit Linux4Tegra kernel from nVidia, which is launched with the sysmodule on boot.
- *
- * The kernel will run apps you program for it, Nintendo have the following:
- *
- * Gmix - Responsible for mixing final audio and sending it out to hardware. This is last place all
- * audio samples end up, and we skip it entirely, since we have very different backends and
- * mixing is implicitly handled by the OS (but also due to lack of research/simplicity).
- *
- * AudioRenderer - Receives command lists generated by the audio render
- * system, processes them, and sends the samples to Gmix.
- *
- * OpusDecoder - Contains libopus, and controls processing Opus audio and sends it to Gmix.
- * Not much research done here, TODO if needed.
- *
- * We only implement the AudioRenderer for now.
- *
- * Communication for the apps is done through mailboxes, and some shared memory.
- */
-class ADSP {
-public:
- explicit ADSP(Core::System& system, Sink::Sink& sink);
- ~ADSP();
-
- /**
- * Start the ADSP.
- *
- * @return True if started or already running, otherwise false.
- */
- bool Start();
-
- /**
- * Stop the ADSP.
- */
- void Stop();
-
- /**
- * Get the ADSP's state.
- *
- * @return Started or Stopped.
- */
- State GetState() const;
-
- /**
- * Get the AudioRenderer mailbox to communicate with it.
- *
- * @return The AudioRenderer mailbox.
- */
- AudioRenderer_Mailbox* GetRenderMailbox();
-
- /**
- * Get the tick the ADSP was signalled.
- *
- * @return The tick the ADSP was signalled.
- */
- u64 GetSignalledTick() const;
-
- /**
- * Get the total time it took for the ADSP to run the last command lists (both command lists).
- *
- * @return The tick the ADSP was signalled.
- */
- u64 GetTimeTaken() const;
-
- /**
- * Get the last time a given command list took to run.
- *
- * @param session_id - The session id to check (0 or 1).
- * @return The time it took.
- */
- u64 GetRenderTimeTaken(u32 session_id);
-
- /**
- * Clear the remaining command count for a given session.
- *
- * @param session_id - The session id to check (0 or 1).
- */
- void ClearRemainCount(u32 session_id);
-
- /**
- * Get the remaining number of commands left to process for a command list.
- *
- * @param session_id - The session id to check (0 or 1).
- * @return The number of commands remaining.
- */
- u32 GetRemainCommandCount(u32 session_id) const;
-
- /**
- * Get the last tick a command list started processing.
- *
- * @param session_id - The session id to check (0 or 1).
- * @return The last tick the given command list started.
- */
- u64 GetRenderingStartTick(u32 session_id);
-
- /**
- * Set a command buffer to be processed.
- *
- * @param session_id - The session id to check (0 or 1).
- * @param command_buffer - The command buffer to process.
- */
- void SendCommandBuffer(u32 session_id, const CommandBuffer& command_buffer);
-
- /**
- * Clear the command buffers (does not clear the time taken or the remaining command count)
- */
- void ClearCommandBuffers();
-
- /**
- * Signal the AudioRenderer to begin processing.
- */
- void Signal();
-
- /**
- * Wait for the AudioRenderer to finish processing.
- */
- void Wait();
-
-private:
- /// Core system
- Core::System& system;
- /// Core memory
- Core::Memory::Memory& memory;
- /// Number of systems active, used to prevent accidental shutdowns
- u8 systems_active{0};
- /// ADSP running state
- std::atomic<bool> running{false};
- /// Output sink used by the ADSP
- Sink::Sink& sink;
- /// AudioRenderer app
- std::unique_ptr<AudioRenderer> audio_renderer{};
- /// Communication for the AudioRenderer
- AudioRenderer_Mailbox render_mailbox{};
- /// Mailbox lock ffor the render mailbox
- std::mutex mailbox_lock;
-};
-
-} // namespace AudioRenderer::ADSP
-} // namespace AudioCore