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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.
119 lines
3.2 KiB
C++
119 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 <Windows.h>
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#include <wdf.h>
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#include <IddCx.h>
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#include <atomic>
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#include <memory>
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#include <stddef.h>
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#include <stdint.h>
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#include "display/CDisplayConfiguration.h"
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#include "display/CMonitorManager.h"
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#include "transport/ITransport.h"
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class CDeviceContext : private ITransportEvents
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{
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private:
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WDFDEVICE m_wdfDevice;
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IDDCX_ADAPTER m_adapter = nullptr;
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LUID m_preferredRenderAdapter = {};
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bool m_havePreferredRenderAdapter = false;
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// At boot the selected transport may not be available yet. The retry timer
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// and atomic gate keep adapter creation single-threaded until it is ready.
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WDFTIMER m_initTimer = nullptr;
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bool m_transportOpened = false;
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std::atomic<LONG> m_initInProgress = 0;
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std::unique_ptr<ITransport> m_transport;
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CDisplayConfiguration m_displayConfiguration;
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CMonitorManager m_monitorManager;
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WDFTIMER m_transportTimer = nullptr;
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UINT m_iddCxVersion = 0;
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bool m_hasIddCx110DDIs = false;
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bool m_canProcessFP16 = false;
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bool m_softwareMode = true;
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void QueryIddCxCapabilities();
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void ScheduleInitRetry();
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void StopInitRetry();
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bool InitializeTransport();
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void TransportTimer();
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void OnSetCursorPos(int32_t x, int32_t y) override;
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void OnSetResolution(uint32_t width, uint32_t height) override;
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void SetResolution(uint32_t width, uint32_t height);
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public:
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explicit CDeviceContext(_In_ WDFDEVICE wdfDevice);
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~CDeviceContext();
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CDeviceContext(const CDeviceContext&) = delete;
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CDeviceContext& operator=(const CDeviceContext&) = delete;
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bool SetupTransport(size_t alignSize);
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void InitAdapter();
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void FinishAdapterInit(UINT connectorIndex);
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void FinishInit(UINT connectorIndex);
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void ReloadSettings();
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void ReplugMonitor();
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void OnMonitorDestroyed(IDDCX_MONITOR monitor);
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void OnSwapChainAssigned();
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void OnSwapChainReleased();
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void OnSwapChainReady();
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bool HasIddCx110DDIs() const { return m_hasIddCx110DDIs; }
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bool CanProcessFP16 () const { return m_canProcessFP16; }
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bool IsSoftwareMode () const { return m_softwareMode; }
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ITransport& GetTransport()
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{
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return *m_transport;
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}
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CDisplayConfiguration& GetDisplayConfiguration()
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{
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return m_displayConfiguration;
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}
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};
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struct CDeviceContextWrapper
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{
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CDeviceContext * context;
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void Cleanup()
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{
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delete context;
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context = nullptr;
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}
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};
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WDF_DECLARE_CONTEXT_TYPE(CDeviceContextWrapper);
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