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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.
88 lines
3.5 KiB
C++
88 lines
3.5 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 "postprocess/D12FrameFormat.h"
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#include "transport/CFrameScheduler.h"
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#include "transport/FrameBufferTypes.h"
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#include "transport/TransportTypes.h"
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#include <Windows.h>
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#include <stddef.h>
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#include <stdint.h>
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class IFrameTransport
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{
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public:
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virtual ~IFrameTransport() = default;
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virtual size_t GetMaxFrameSize() const = 0;
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virtual bool FrameBufferAvailable(
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const CFrameScheduler::Schedule& schedule,
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bool allowReadyReplacement = true) = 0;
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virtual bool HasPublishedFrame() const = 0;
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virtual void ProcessDeliveries() = 0;
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virtual bool GetPendingDeliveryTarget(
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uint64_t now, uint64_t& target) = 0;
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virtual bool RetryPendingDelivery(uint64_t now, bool& retry) = 0;
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virtual PreparedFrameBuffer PrepareFrameBuffer(unsigned pitch,
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const D12FrameFormat& srcFormat, const D12FrameFormat& dstFormat,
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const RECT * dirtyRects, unsigned nbDirtyRects,
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const CFrameScheduler::Schedule& schedule,
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bool allowReadyReplacement = true) = 0;
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virtual bool PublishFrameBuffer(unsigned frameIndex,
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const CFrameScheduler::Schedule& schedule,
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bool& deliveredToOwner) = 0;
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virtual bool RepublishFrameBuffer(
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const CFrameScheduler::Schedule& schedule) = 0;
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virtual bool TryFrameSubmitted(unsigned frameIndex,
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const CFrameScheduler::Schedule& schedule) = 0;
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virtual void CommitFrameBuffer(unsigned frameIndex,
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const CFrameScheduler::Schedule& schedule, bool periodic,
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bool deliveredToOwner) = 0;
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virtual void AbortFrameBuffer(unsigned frameIndex) = 0;
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virtual void FailFrameBuffer(unsigned frameIndex) = 0;
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virtual void CompleteFrameBuffer(
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unsigned frameIndex, bool succeeded) = 0;
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virtual void SetFrameTiming(unsigned frameIndex, uint64_t captureTime,
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uint64_t postProcessTime, uint64_t copyTime, uint64_t readyTime,
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uint64_t holdTime, const CFrameScheduler::Schedule& schedule,
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uint64_t completedAt) = 0;
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virtual void WriteFrameBuffer(unsigned frameIndex, void * src,
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size_t offset, size_t len, bool setWritePos) const = 0;
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virtual void WriteFrameBufferRows(unsigned frameIndex, void * src,
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size_t offset, size_t rowBytes, size_t pitch,
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unsigned rows) const = 0;
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virtual void FinalizeFrameBuffer(unsigned frameIndex) const = 0;
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virtual void ObserveFrame(uint64_t now) = 0;
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virtual void ForceFrame() = 0;
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virtual bool GetPublishTarget(uint64_t now, uint64_t& target,
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CFrameScheduler::Schedule& schedule, bool& periodic,
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bool& republish) = 0;
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virtual void FrameMissed(const CFrameScheduler::Schedule& schedule,
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uint64_t now, bool periodic) = 0;
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virtual void FrameSuperseded() = 0;
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virtual HANDLE GetFrameScheduleEvent() const = 0;
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virtual void TryRecordFrameTiming(uint64_t duration) = 0;
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};
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