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https://github.com/gnif/LookingGlass.git
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6725133375
Introduce transport, frame, and control interfaces with an LGMP factory backend. Move LGMP and IVSHMEM implementation details under transport/lgmp and expose direct frame-buffer memory through a neutral capability.
106 lines
3.9 KiB
C++
106 lines
3.9 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 "capture/CFrameProcessor.h"
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class CHardwareFrameProcessor final : public CFrameProcessor
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{
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private:
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enum CandidateState
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{
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CANDIDATE_FREE,
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CANDIDATE_PREPARING,
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CANDIDATE_READY,
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CANDIDATE_PUBLISHING,
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};
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struct FrameCandidate
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{
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CandidateState state = CANDIDATE_FREE;
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ComPtr<ID3D12Resource> resource;
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D12FrameFormat srcFormat = {};
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D12FrameFormat dstFormat = {};
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RECT dirtyRects[LG_MAX_DIRTY_RECTS] = {};
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unsigned nbDirtyRects = 0;
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unsigned pitch = 0;
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size_t frameSize = 0;
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uint64_t sequence = 0;
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uint64_t captureTime = 0;
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uint64_t postProcessStart = 0;
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uint64_t prepareCopyStart = 0;
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uint64_t prepareReady = 0;
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uint64_t prepareGPUStart = 0;
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uint64_t prepareGPUEnd = 0;
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uint64_t timingStart = 0;
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unsigned timingEffectIndex = 0;
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uint64_t timingToken = 0;
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bool prepareTimingValid = false;
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};
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struct CandidateDamageTail
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{
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uint64_t ownerSequence = 0;
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RECT dirtyRects[LG_MAX_DIRTY_RECTS] = {};
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unsigned nbDirtyRects = 0;
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bool hasDamage = false;
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bool active = false;
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};
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FrameCandidate m_candidates[TRANSPORT_FRAME_QUEUE_LENGTH];
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CandidateDamageTail m_candidateDamageTail[TRANSPORT_FRAME_QUEUE_LENGTH];
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mutable SRWLOCK m_candidateLock = SRWLOCK_INIT;
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SRWLOCK m_copySubmitLock = SRWLOCK_INIT;
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uint64_t m_candidateSequence = 0;
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bool m_publishPending = false;
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Wrappers::Event m_candidateAvailableEvent;
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Wrappers::Event m_copySubmitEvent;
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static void CandidateCompletionFunction(
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CD3D12CommandSlot * slot, bool result, void * param1, void * param2);
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static void CompletionFunction(
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CD3D12CommandSlot * slot, bool result, void * param1, void * param2);
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int AcquireCandidate(bool exclusiveSample, bool allowSupersede);
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void ReleaseCandidate(unsigned candidateIndex);
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bool EnsureCandidateResource(unsigned candidateIndex, size_t frameSize);
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void ResetCandidates();
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void SignalCandidateState();
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bool ExecuteCandidateCopy(CD3D12CommandSlot * copySlot);
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void AccumulateDamageLocked(
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const RECT dirtyRects[], unsigned count) override;
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void SetFullDamageLocked() override;
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public:
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CHardwareFrameProcessor(IFrameTransport * transport,
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std::shared_ptr<CD3D12Device> dx12,
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CPostProcessor postProcessors[TRANSPORT_FRAME_QUEUE_LENGTH],
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SRWLOCK * pipelineLock, HANDLE terminateEvent);
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bool IsValid() const override;
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bool Submit(const FrameSubmission& submission) override;
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bool HasReadyFrame() const override;
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bool Publish(const CFrameScheduler::Schedule& schedule,
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bool periodic, uint64_t publishStart) override;
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bool UsesCadence() const override { return true; }
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void Reset() override;
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void ResetPipeline() override;
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};
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