mirror of
https://github.com/gnif/LookingGlass.git
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36e170d93a
Replace the single-owner PCM queues with one shared LGMP SPMC stream. Give each admitted client reliable state and an independent playback cursor, while clients without clock authority resample locally. Extend the audio protocol with per-client epochs and barriers. Keep capture exclusive and bound authority backpressure so slow secondary readers cannot affect the disciplined low-latency path.
86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
/**
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* Looking Glass
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* Copyright © 2017-2026 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#pragma once
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#include "Atomic.h"
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#include "transport/ITransport.h"
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#include "transport/lgmp/CIVSHMEM.h"
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#include "transport/lgmp/CLGMPAudioTransport.h"
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#include "transport/lgmp/CLGMPClipboardTransport.h"
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#include "transport/lgmp/CLGMPControl.h"
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#include "transport/lgmp/CLGMPFrameTransport.h"
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#include "transport/lgmp/CLGMPHost.h"
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#include "transport/lgmp/CLGMPInputTransport.h"
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#include "transport/lgmp/CRecovery.h"
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class CLGMPTransport final : public ITransport
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{
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private:
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TransportInstance m_config;
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// Keep this declaration order. Destruction must release frame and control
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// allocations before the LGMP host and its IVSHMEM mapping are destroyed.
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CIVSHMEM m_ivshmem;
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CLGMPHost m_host;
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CLGMPControl m_control;
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CLGMPAudio m_audio;
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CLGMPFrameTransport m_frames;
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CLGMPInputTransport m_input;
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CLGMPClipboardTransport m_clipboard;
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CRecovery m_recovery;
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std::atomic<bool> m_ready = false;
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FrameCfg m_activeCfg;
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FrameCfg m_pendingCfg;
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bool m_hasActive = false;
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bool m_hasPending = false;
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public:
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explicit CLGMPTransport(const TransportInstance& config);
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~CLGMPTransport() override = default;
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CLGMPTransport(const CLGMPTransport&) = delete;
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CLGMPTransport& operator=(const CLGMPTransport&) = delete;
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OpenResult Open() override;
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bool Initialize() override;
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bool Setup(size_t alignment) override;
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ProcessResult Process(ITransportEvents& events) override;
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void Stop() override;
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void SyncRecovery() override;
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void RecoveryStatus(const SourceKey& source,
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uint64_t session, uint32_t serial, bool active,
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Recovery state, uint32_t error) override;
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const FrameProfile * Profiles(unsigned& count) const override;
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CfgResult Probe(const FrameCfg& cfg) const override;
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CfgResult Prepare(const FrameCfg& cfg) override;
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void Commit() override;
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void Abort() override;
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std::shared_ptr<const FrameCaps> GetFrameCaps() const override;
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DirectFrameBufferMemory GetDirectMemory() const override;
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IFrameSink * FrameSink() override { return &m_frames; }
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IAudioSource * Audio() override { return &m_audio; }
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IControlSink * Control() override { return &m_control; }
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IInputSource * Input() override { return &m_input; }
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IClipboardSource * Clipboard() override { return &m_clipboard; }
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};
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