mirror of
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.
114 lines
3.6 KiB
C++
114 lines
3.6 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 "config/CSettings.h"
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#include "display/CEdid.h"
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#include "display/IddCxCompat.h"
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#include "transport/FrameMemoryLimits.h"
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#include <stddef.h>
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#include <stdint.h>
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#include <vector>
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class CDisplayConfiguration
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{
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public:
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enum class ResolutionStatus
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{
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SUCCESS,
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INVALID,
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TOO_LARGE,
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SETTINGS_FAILED,
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MODES_FAILED,
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};
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struct ResolutionResult
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{
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ResolutionStatus status = ResolutionStatus::INVALID;
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CSettings::DisplayMode mode = {};
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uint32_t requiredMiB = 0;
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};
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struct Description
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{
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size_t modeCount = 0;
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std::vector<BYTE> edid;
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};
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private:
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CSettings& m_settings;
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// Registry-backed changes are serialized before publishing a replacement
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// mode list. Readers only hold m_modeLock long enough to take a snapshot.
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SRWLOCK m_reloadLock = SRWLOCK_INIT;
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mutable SRWLOCK m_modeLock = SRWLOCK_INIT;
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CSettings::DisplayModes m_modes;
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CEdid m_edid;
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bool m_hdrEnabled = false;
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bool LoadModes(const FrameMemoryLimits& limits);
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CSettings::DisplayModes SnapshotModes(bool * hdrEnabled = nullptr) const;
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static bool AlignUp(UINT64 value, UINT64 alignment, UINT64& result);
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static bool CalculateFrameSize(uint32_t width, uint32_t height,
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UINT64& frameSize);
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static bool GetResolutionMemoryRequirements(uint32_t width,
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uint32_t height, UINT64 alignment, const FrameMemoryLimits& limits,
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UINT64& frameSize, UINT64& requiredSize);
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static uint32_t RecommendedMemorySizeMiB(UINT64 requiredSize);
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public:
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explicit CDisplayConfiguration(CSettings& settings);
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CDisplayConfiguration(const CDisplayConfiguration&) = delete;
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CDisplayConfiguration& operator=(const CDisplayConfiguration&) = delete;
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bool Load(const FrameMemoryLimits& limits);
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bool ReloadSettings(const FrameMemoryLimits& limits);
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ResolutionResult SetResolution(uint32_t width, uint32_t height,
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const FrameMemoryLimits& limits);
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void InitializeEdid(bool hdr);
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void RebuildEdid(bool hdr);
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Description GetDescription() const;
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NTSTATUS ParseMonitorDescription(
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const IDARG_IN_PARSEMONITORDESCRIPTION * inArgs,
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IDARG_OUT_PARSEMONITORDESCRIPTION * outArgs) const;
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NTSTATUS MonitorGetDefaultModes(
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const IDARG_IN_GETDEFAULTDESCRIPTIONMODES * inArgs,
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IDARG_OUT_GETDEFAULTDESCRIPTIONMODES * outArgs) const;
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NTSTATUS MonitorQueryTargetModes(
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const IDARG_IN_QUERYTARGETMODES * inArgs,
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IDARG_OUT_QUERYTARGETMODES * outArgs) const;
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#ifdef HAS_IDDCX_110
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NTSTATUS ParseMonitorDescription2(
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const IDARG_IN_PARSEMONITORDESCRIPTION2 * inArgs,
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IDARG_OUT_PARSEMONITORDESCRIPTION * outArgs) const;
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NTSTATUS MonitorQueryTargetModes2(
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const IDARG_IN_QUERYTARGETMODES2 * inArgs,
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IDARG_OUT_QUERYTARGETMODES * outArgs) const;
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#endif
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};
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