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58d24da7f31458ede072ba0474fba6b7dc346b72
LookingGlass/idd/LGIdd/CIndirectDeviceContext.cpp
Geoffrey McRae 7114d6f049 [idd] fix failure to detect GPU acceleration is available
2026-07-19 06:13:24 +10:00

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/**
* Looking Glass
* Copyright © 2017-2026 The Looking Glass Authors
* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "CIndirectDeviceContext.h"
#include "CIndirectMonitorContext.h"
#include "CSettings.h"
#include "CPlatformInfo.h"
#include "CPipeServer.h"
#include "CDebug.h"
#include "VersionInfo.h"
#include <dxgi1_2.h>
#include <sstream>
static const struct LGMPQueueConfig FRAME_QUEUE_CONFIG =
{
LGMP_Q_FRAME, //queueID
LGMP_Q_FRAME_LEN, //numMessages
1000 //subTimeout
};
static const struct LGMPQueueConfig POINTER_QUEUE_CONFIG =
{
LGMP_Q_POINTER, //queueID
LGMP_Q_POINTER_LEN, //numMesages
1000 //subTimeout
};
static const UINT IDDCX_VERSION_1_10 = 0x1A00;
#ifdef HAS_IDDCX_110
static inline IDDCX_WIRE_BITS_PER_COMPONENT GetWireBitsPerComponent(bool hdr)
{
IDDCX_WIRE_BITS_PER_COMPONENT bits = {};
bits.Rgb = IDDCX_BITS_PER_COMPONENT_8;
if (hdr)
bits.Rgb = (IDDCX_BITS_PER_COMPONENT)(bits.Rgb |
IDDCX_BITS_PER_COMPONENT_10 | IDDCX_BITS_PER_COMPONENT_16);
bits.YCbCr444 = IDDCX_BITS_PER_COMPONENT_NONE;
bits.YCbCr422 = IDDCX_BITS_PER_COMPONENT_NONE;
bits.YCbCr420 = IDDCX_BITS_PER_COMPONENT_NONE;
return bits;
}
#endif
void CIndirectDeviceContext::QueryIddCxCapabilities()
{
IDARG_OUT_GETVERSION ver = {};
NTSTATUS status = IddCxGetVersion(&ver);
if (!NT_SUCCESS(status))
{
m_iddCxVersion = 0;
m_hasIddCx110DDIs = false;
m_canProcessFP16 = false;
DEBUG_ERROR_HR(status, "IddCxGetVersion Failed");
return;
}
m_iddCxVersion = ver.IddCxVersion;
#ifdef HAS_IDDCX_110
const bool hasIddCx110DDIs =
!!IDD_IS_FUNCTION_AVAILABLE(IddCxSwapChainReleaseAndAcquireBuffer2) &&
!!IDD_IS_FUNCTION_AVAILABLE(IddCxMonitorQueryHardwareCursor3) &&
!!IDD_IS_FUNCTION_AVAILABLE(IddCxMonitorUpdateModes2) &&
IDD_IS_FIELD_AVAILABLE(IDD_CX_CLIENT_CONFIG, EvtIddCxAdapterQueryTargetInfo) &&
IDD_IS_FIELD_AVAILABLE(IDD_CX_CLIENT_CONFIG, EvtIddCxAdapterCommitModes2) &&
IDD_IS_FIELD_AVAILABLE(IDD_CX_CLIENT_CONFIG, EvtIddCxParseMonitorDescription2) &&
IDD_IS_FIELD_AVAILABLE(IDD_CX_CLIENT_CONFIG, EvtIddCxMonitorQueryTargetModes2) &&
IDD_IS_FIELD_AVAILABLE(IDD_CX_CLIENT_CONFIG, EvtIddCxMonitorSetDefaultHdrMetaData) &&
IDD_IS_FIELD_AVAILABLE(IDD_CX_CLIENT_CONFIG, EvtIddCxMonitorSetGammaRamp);
#else
const bool hasIddCx110DDIs = false;
#endif
m_hasIddCx110DDIs =
m_iddCxVersion >= IDDCX_VERSION_1_10 && hasIddCx110DDIs;
m_canProcessFP16 = !m_softwareMode && m_hasIddCx110DDIs;
DEBUG_INFO("IddCx version: 0x%04x", m_iddCxVersion);
DEBUG_INFO("IddCx 1.10 HDR/WCG DDIs: %s",
m_hasIddCx110DDIs ? "available" : "unavailable");
if (m_softwareMode && m_hasIddCx110DDIs)
DEBUG_INFO("HDR/WCG disabled for software rendering");
}
void CIndirectDeviceContext::PopulateDefaultModes()
{
g_settings.LoadModes();
// Build the new mode list into a local first so we only hold the lock for
// the swap. IddCx readers may be iterating the live container on another
// thread; a clear()/push_back() under them would reallocate the backing
// store and crash. std::move makes the publish a pointer swap.
CSettings::DisplayModes newModes;
newModes.reserve(g_settings.GetDisplayModes().size());
for (auto& dm : g_settings.GetDisplayModes())
newModes.push_back(dm);
AcquireSRWLockExclusive(&m_modeLock);
m_displayModes = std::move(newModes);
ReleaseSRWLockExclusive(&m_modeLock);
}
void CIndirectDeviceContext::InitializeEdid()
{
AcquireSRWLockExclusive(&m_modeLock);
if (!m_edid.Size())
m_edid.Build(m_displayModes, CanProcessFP16());
ReleaseSRWLockExclusive(&m_modeLock);
}
void CIndirectDeviceContext::ScheduleInitRetry()
{
// Create the retry timer once; if it already exists it is either running or
// will be (re)started below.
if (!m_initTimer)
{
WDF_TIMER_CONFIG config;
WDF_TIMER_CONFIG_INIT_PERIODIC(&config,
[](WDFTIMER timer) -> void
{
WDFOBJECT parent = WdfTimerGetParentObject(timer);
auto wrapper = WdfObjectGet_CIndirectDeviceContextWrapper(parent);
wrapper->context->InitAdapter();
},
500);
config.AutomaticSerialization = FALSE;
WDF_OBJECT_ATTRIBUTES attribs;
WDF_OBJECT_ATTRIBUTES_INIT(&attribs);
attribs.ParentObject = m_wdfDevice;
attribs.ExecutionLevel = WdfExecutionLevelDispatch;
NTSTATUS status = WdfTimerCreate(&config, &attribs, &m_initTimer);
if (!NT_SUCCESS(status))
{
DEBUG_ERROR_HR(status, "Init retry timer creation failed");
m_initTimer = nullptr;
return;
}
}
WdfTimerStart(m_initTimer, WDF_REL_TIMEOUT_IN_MS(500));
}
void CIndirectDeviceContext::StopInitRetry()
{
if (m_initTimer)
WdfTimerStop(m_initTimer, FALSE);
}
void CIndirectDeviceContext::InitAdapter()
{
DEBUG_TRACE("InitAdapter");
// The adapter only needs to be created once. D0Entry and the retry timer can
// both land here, so guard against re-entrancy and repeated creation.
if (m_adapter)
{
DEBUG_TRACE("Adapter initialization skipped: adapter already exists");
return;
}
if (InterlockedCompareExchange(&m_initInProgress, 1, 0) != 0)
{
DEBUG_TRACE("Adapter initialization skipped: initialization already in progress");
return;
}
// At boot the IVSHMEM PCI device may not have enumerated yet. Rather than
// silently abandoning the adapter (leaving the device loaded but with no
// monitor), retry from a timer until the shared memory becomes available.
if (!m_ivshmemOpened)
{
if (!m_ivshmem.Init() || !m_ivshmem.Open())
{
DEBUG_WARN("IVSHMEM not available yet, scheduling init retry");
ScheduleInitRetry();
InterlockedExchange(&m_initInProgress, 0);
return;
}
m_ivshmemOpened = true;
}
// Select the render adapter before advertising capabilities. If no hardware
// adapter is available, this is a software-rendered display and must remain
// SDR-only; the software path must never depend on compute processing.
bool havePreferredRenderAdapter = false;
LUID preferredRenderAdapter = {};
IDXGIFactory1 * factory = NULL;
HRESULT factoryStatus = CreateDXGIFactory1(
__uuidof(IDXGIFactory1), (void **)&factory);
if (FAILED(factoryStatus))
DEBUG_ERROR_HR(factoryStatus, "CreateDXGIFactory Failed");
else
{
for (UINT i = 0;; ++i)
{
IDXGIAdapter1 * dxgiAdapter = nullptr;
HRESULT enumStatus = factory->EnumAdapters1(i, &dxgiAdapter);
if (enumStatus == DXGI_ERROR_NOT_FOUND)
break;
if (FAILED(enumStatus))
{
DEBUG_ERROR_HR(enumStatus, "Failed to enumerate DXGI adapter %u", i);
break;
}
DXGI_ADAPTER_DESC1 adapterDesc = {};
HRESULT descStatus = dxgiAdapter->GetDesc1(&adapterDesc);
dxgiAdapter->Release();
if (FAILED(descStatus))
{
DEBUG_ERROR_HR(descStatus, "Failed to query DXGI adapter %u", i);
continue;
}
if ((adapterDesc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE) ||
(adapterDesc.VendorId == 0x1414 && adapterDesc.DeviceId == 0x008c))
{
DEBUG_INFO("Ignoring software render adapter %ls", adapterDesc.Description);
continue;
}
if ((adapterDesc.VendorId == 0x1b36 && adapterDesc.DeviceId == 0x000d) || // QXL
(adapterDesc.VendorId == 0x1234 && adapterDesc.DeviceId == 0x1111)) // QEMU Standard VGA
{
DEBUG_INFO("Ignoring display-only adapter %ls (vendor 0x%04x, device 0x%04x)",
adapterDesc.Description, adapterDesc.VendorId, adapterDesc.DeviceId);
continue;
}
DEBUG_INFO("Selected render adapter %ls (vendor 0x%04x, device 0x%04x)",
adapterDesc.Description, adapterDesc.VendorId, adapterDesc.DeviceId);
preferredRenderAdapter = adapterDesc.AdapterLuid;
havePreferredRenderAdapter = true;
break;
}
factory->Release();
}
m_softwareMode = !havePreferredRenderAdapter;
if (m_softwareMode)
DEBUG_INFO("No hardware render adapter available; using SDR software mode");
QueryIddCxCapabilities();
DEBUG_TRACE("Loading configured display modes");
PopulateDefaultModes();
DEBUG_TRACE("Initializing monitor EDID");
InitializeEdid();
AcquireSRWLockShared(&m_modeLock);
const size_t modeCount = m_displayModes.size();
const UINT edidSize = m_edid.Size();
ReleaseSRWLockShared(&m_modeLock);
DEBUG_INFO("Initializing adapter with %llu modes and a %u-byte EDID",
(unsigned long long)modeCount, edidSize);
IDDCX_ADAPTER_CAPS caps = {};
caps.Size = sizeof(caps);
/**
* For some reason if we do not set this flag sometimes windows will
* refuse to enumerate our virtual monitor. Intel also noted in their
* sources that if this is not set dynamic resolution changes from this
* driver will not work. This behaviour is not documented by Microsoft.
*/
caps.Flags = IDDCX_ADAPTER_FLAGS_USE_SMALLEST_MODE;
#ifdef HAS_IDDCX_110
if (CanProcessFP16())
caps.Flags |= IDDCX_ADAPTER_FLAGS_CAN_PROCESS_FP16;
#endif
caps.MaxMonitorsSupported = 1;
caps.EndPointDiagnostics.Size = sizeof(caps.EndPointDiagnostics);
caps.EndPointDiagnostics.GammaSupport = IDDCX_FEATURE_IMPLEMENTATION_NONE;
caps.EndPointDiagnostics.TransmissionType = IDDCX_TRANSMISSION_TYPE_OTHER;
caps.EndPointDiagnostics.pEndPointFriendlyName = L"Looking Glass IDD Driver";
caps.EndPointDiagnostics.pEndPointManufacturerName = L"Looking Glass";
caps.EndPointDiagnostics.pEndPointModelName = L"Looking Glass";
IDDCX_ENDPOINT_VERSION ver = {};
ver.Size = sizeof(ver);
ver.MajorVer = 1;
caps.EndPointDiagnostics.pFirmwareVersion = &ver;
caps.EndPointDiagnostics.pHardwareVersion = &ver;
WDF_OBJECT_ATTRIBUTES attr;
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&attr, CIndirectDeviceContextWrapper);
IDARG_IN_ADAPTER_INIT init = {};
init.WdfDevice = m_wdfDevice;
init.pCaps = &caps;
init.ObjectAttributes = &attr;
IDARG_OUT_ADAPTER_INIT initOut = {};
DEBUG_INFO("Calling IddCxAdapterInitAsync with flags 0x%08x",
caps.Flags);
NTSTATUS status = IddCxAdapterInitAsync(&init, &initOut);
if (!NT_SUCCESS(status) && CanProcessFP16())
{
DEBUG_WARN(
"IddCxAdapterInitAsync rejected FP16 adapter capabilities (0x%08x), retrying without HDR/WCG",
status);
m_canProcessFP16 = false;
// The monitor has not been created yet, so replace the provisional HDR
// EDID before Windows can observe it.
AcquireSRWLockExclusive(&m_modeLock);
m_edid.Build(m_displayModes, false);
ReleaseSRWLockExclusive(&m_modeLock);
caps.Flags = (IDDCX_ADAPTER_FLAGS)(caps.Flags & ~IDDCX_ADAPTER_FLAGS_CAN_PROCESS_FP16);
ZeroMemory(&initOut, sizeof(initOut));
status = IddCxAdapterInitAsync(&init, &initOut);
}
if (!NT_SUCCESS(status))
{
DEBUG_ERROR_HR(status, "IddCxAdapterInitAsync Failed");
InterlockedExchange(&m_initInProgress, 0);
return;
}
m_adapter = initOut.AdapterObject;
if (!m_adapter)
{
DEBUG_ERROR("IddCxAdapterInitAsync succeeded without returning an adapter object");
InterlockedExchange(&m_initInProgress, 0);
return;
}
DEBUG_INFO("IddCxAdapterInitAsync started successfully (adapter %p)",
m_adapter);
// Try to co-exist with the virtual video device by telling IddCx which
// hardware adapter we prefer to render on.
if (havePreferredRenderAdapter)
{
IDARG_IN_ADAPTERSETRENDERADAPTER args = {};
args.PreferredRenderAdapter = preferredRenderAdapter;
IddCxAdapterSetRenderAdapter(m_adapter, &args);
DEBUG_INFO("Preferred render adapter set");
}
auto * wrapper = WdfObjectGet_CIndirectDeviceContextWrapper(m_adapter);
wrapper->context = this;
DEBUG_INFO("Adapter context attached; waiting for initialization callback");
// Adapter is up; no need to keep retrying.
StopInitRetry();
InterlockedExchange(&m_initInProgress, 0);
DEBUG_INFO("Adapter initialization request complete; returning to IddCx");
}
void CIndirectDeviceContext::FinishInit(UINT connectorIndex)
{
DEBUG_INFO("Creating monitor on connector %u", connectorIndex);
// We support a single monitor; never create a second one if one already
// exists (a replug must clear m_monitor via departure first).
AcquireSRWLockExclusive(&m_stateLock);
bool haveMonitor = m_monitor != WDF_NO_HANDLE;
ReleaseSRWLockExclusive(&m_stateLock);
if (haveMonitor)
{
DEBUG_WARN("FinishInit skipped: a monitor already exists");
return;
}
WDF_OBJECT_ATTRIBUTES attr;
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&attr, CIndirectMonitorContextWrapper);
// Take a private copy of the immutable EDID. The copy lives for the duration
// of the synchronous create call below.
std::vector<BYTE> edid;
AcquireSRWLockShared(&m_modeLock);
edid.assign(m_edid.Data(), m_edid.Data() + m_edid.Size());
ReleaseSRWLockShared(&m_modeLock);
DEBUG_INFO("Using %llu-byte monitor EDID", (unsigned long long)edid.size());
IDDCX_MONITOR_INFO info = {};
info.Size = sizeof(info);
info.MonitorType = DISPLAYCONFIG_OUTPUT_TECHNOLOGY_HDMI;
info.ConnectorIndex = connectorIndex;
info.MonitorDescription.Size = sizeof(info.MonitorDescription);
info.MonitorDescription.Type = IDDCX_MONITOR_DESCRIPTION_TYPE_EDID;
info.MonitorDescription.DataSize = (UINT)edid.size();
info.MonitorDescription.pData = edid.empty() ? nullptr : edid.data();
HRESULT hr = CoCreateGuid(&info.MonitorContainerId);
if (FAILED(hr))
{
DEBUG_ERROR_HR(hr, "Failed to create the monitor container ID");
return;
}
IDARG_IN_MONITORCREATE create = {};
create.ObjectAttributes = &attr;
create.pMonitorInfo = &info;
IDARG_OUT_MONITORCREATE createOut = {};
NTSTATUS status = IddCxMonitorCreate(m_adapter, &create, &createOut);
if (!NT_SUCCESS(status))
{
DEBUG_ERROR_HR(status, "IddCxMonitorCreate Failed");
return;
}
DEBUG_INFO("Monitor object created (%p)", createOut.MonitorObject);
AcquireSRWLockExclusive(&m_stateLock);
m_monitor = createOut.MonitorObject;
ReleaseSRWLockExclusive(&m_stateLock);
auto * wrapper = WdfObjectGet_CIndirectMonitorContextWrapper(m_monitor);
wrapper->context = new CIndirectMonitorContext(m_monitor, this);
IDARG_OUT_MONITORARRIVAL out = {};
status = IddCxMonitorArrival(m_monitor, &out);
if (FAILED(status))
{
DEBUG_ERROR_HR(status, "IddCxMonitorArrival Failed");
return;
}
DEBUG_INFO("Monitor arrival reported successfully");
}
void CIndirectDeviceContext::ReplugMonitor()
{
AcquireSRWLockExclusive(&m_stateLock);
if (m_replugMonitor || (m_swapChainAssigned && !m_swapChainReady))
{
// Coalesce changes received while a swap chain is being initialized, the
// old one is draining, or its replacement is being initialized.
m_replugPending = true;
ReleaseSRWLockExclusive(&m_stateLock);
return;
}
IDDCX_MONITOR monitor = m_monitor;
if (monitor == WDF_NO_HANDLE)
{
m_replugMonitor = true;
m_monitorDeparted = true;
ReleaseSRWLockExclusive(&m_stateLock);
// Either no monitor yet, or one is already pending; build it now and
// cancel any queued rebuild so we do not create two.
InterlockedExchange(&m_finishInitQueued, 0);
FinishInit(0);
return;
}
// Clear the handle before departing so nothing calls an IddCx monitor API on
// a departing/destroyed handle. FinishInit publishes the new one.
m_replugMonitor = true;
m_monitorDeparted = false;
m_waitForSwapChainRelease = m_swapChainAssigned;
m_monitor = nullptr;
ReleaseSRWLockExclusive(&m_stateLock);
DEBUG_TRACE("ReplugMonitor");
NTSTATUS status = IddCxMonitorDeparture(monitor);
if (!NT_SUCCESS(status))
{
AcquireSRWLockExclusive(&m_stateLock);
m_replugMonitor = false;
m_replugPending = false;
m_monitorDeparted = false;
m_waitForSwapChainRelease = false;
m_monitor = monitor;
ReleaseSRWLockExclusive(&m_stateLock);
DEBUG_ERROR("IddCxMonitorDeparture Failed (0x%08x)", status);
return;
}
AcquireSRWLockExclusive(&m_stateLock);
m_monitorDeparted = true;
const bool rebuild = !m_waitForSwapChainRelease;
ReleaseSRWLockExclusive(&m_stateLock);
// If there was no swap chain there will be no unassign callback to queue the
// rebuild. Otherwise OnSwapChainReleased does so after teardown has drained.
if (rebuild)
InterlockedExchange(&m_finishInitQueued, 1);
}
void CIndirectDeviceContext::OnMonitorDestroyed(IDDCX_MONITOR monitor)
{
AcquireSRWLockExclusive(&m_stateLock);
if (m_monitor == monitor)
m_monitor = nullptr;
ReleaseSRWLockExclusive(&m_stateLock);
}
void CIndirectDeviceContext::OnSwapChainAssigned()
{
AcquireSRWLockExclusive(&m_stateLock);
m_swapChainAssigned = true;
m_swapChainReady = false;
ReleaseSRWLockExclusive(&m_stateLock);
}
void CIndirectDeviceContext::OnSwapChainReleased()
{
bool rebuild = false;
AcquireSRWLockExclusive(&m_stateLock);
m_swapChainAssigned = false;
m_swapChainReady = false;
if (m_replugMonitor && m_waitForSwapChainRelease)
{
m_waitForSwapChainRelease = false;
rebuild = m_monitorDeparted;
}
ReleaseSRWLockExclusive(&m_stateLock);
if (rebuild)
InterlockedExchange(&m_finishInitQueued, 1);
}
void CIndirectDeviceContext::OnSwapChainReady()
{
bool replug = false;
bool doSetMode = false;
CSettings::DisplayMode mode = {};
AcquireSRWLockExclusive(&m_stateLock);
m_swapChainReady = true;
if (m_replugMonitor)
{
m_replugMonitor = false;
m_monitorDeparted = false;
if (m_replugPending)
{
m_replugPending = false;
replug = true;
}
}
else if (m_replugPending)
{
m_replugPending = false;
replug = true;
}
// Do not consume the requested mode on an intermediate replacement swap
// chain. The last coalesced replug must be the one that applies it.
if (!replug && m_doSetMode)
{
mode = m_setMode;
m_doSetMode = false;
doSetMode = true;
}
ReleaseSRWLockExclusive(&m_stateLock);
// Do not expose the context to pipe reload requests until the initial swap
// chain has reached the same ready state used by the replug gate.
g_pipe.SetDeviceContext(this);
if (replug)
InterlockedExchange(&m_replugQueued, 1);
else if (doSetMode)
g_pipe.SetDisplayMode(mode.width, mode.height, mode.refresh);
}
static inline void FillSignalInfo(DISPLAYCONFIG_VIDEO_SIGNAL_INFO & mode, DWORD width, DWORD height, DWORD vsync, bool monitorMode)
{
mode.totalSize.cx = mode.activeSize.cx = width;
mode.totalSize.cy = mode.activeSize.cy = height;
mode.AdditionalSignalInfo.vSyncFreqDivider = monitorMode ? 0 : 1;
mode.AdditionalSignalInfo.videoStandard = 255;
mode.vSyncFreq.Numerator = vsync;
mode.vSyncFreq.Denominator = 1;
mode.hSyncFreq.Numerator = vsync * height;
mode.hSyncFreq.Denominator = 1;
mode.scanLineOrdering = DISPLAYCONFIG_SCANLINE_ORDERING_PROGRESSIVE;
mode.pixelRate = ((UINT64)vsync) * ((UINT64)width) * ((UINT64)height);
}
NTSTATUS CIndirectDeviceContext::ParseMonitorDescription(
const IDARG_IN_PARSEMONITORDESCRIPTION* inArgs,
IDARG_OUT_PARSEMONITORDESCRIPTION* outArgs)
{
CSettings::DisplayModes modes;
AcquireSRWLockShared(&m_modeLock);
modes = m_displayModes;
ReleaseSRWLockShared(&m_modeLock);
outArgs->MonitorModeBufferOutputCount = (UINT)modes.size();
outArgs->PreferredMonitorModeIdx = 0;
if (inArgs->MonitorModeBufferInputCount < (UINT)modes.size())
return (inArgs->MonitorModeBufferInputCount > 0) ? STATUS_BUFFER_TOO_SMALL : STATUS_SUCCESS;
auto * mode = inArgs->pMonitorModes;
for (auto it = modes.cbegin(); it != modes.cend(); ++it, ++mode)
{
mode->Size = sizeof(IDDCX_MONITOR_MODE);
mode->Origin = IDDCX_MONITOR_MODE_ORIGIN_MONITORDESCRIPTOR;
FillSignalInfo(mode->MonitorVideoSignalInfo, it->width, it->height, it->refresh, true);
if (it->preferred)
outArgs->PreferredMonitorModeIdx =
(UINT)std::distance(modes.cbegin(), it);
}
return STATUS_SUCCESS;
}
NTSTATUS CIndirectDeviceContext::MonitorGetDefaultModes(
const IDARG_IN_GETDEFAULTDESCRIPTIONMODES* inArgs,
IDARG_OUT_GETDEFAULTDESCRIPTIONMODES* outArgs)
{
CSettings::DisplayModes modes;
AcquireSRWLockShared(&m_modeLock);
modes = m_displayModes;
ReleaseSRWLockShared(&m_modeLock);
outArgs->DefaultMonitorModeBufferOutputCount = (UINT)modes.size();
outArgs->PreferredMonitorModeIdx = 0;
if (inArgs->DefaultMonitorModeBufferInputCount < (UINT)modes.size())
return (inArgs->DefaultMonitorModeBufferInputCount > 0) ? STATUS_BUFFER_TOO_SMALL : STATUS_SUCCESS;
auto* mode = inArgs->pDefaultMonitorModes;
for (auto it = modes.cbegin(); it != modes.cend(); ++it, ++mode)
{
mode->Size = sizeof(IDDCX_MONITOR_MODE);
mode->Origin = IDDCX_MONITOR_MODE_ORIGIN_DRIVER;
FillSignalInfo(mode->MonitorVideoSignalInfo, it->width, it->height, it->refresh, true);
if (it->preferred)
outArgs->PreferredMonitorModeIdx =
(UINT)std::distance(modes.cbegin(), it);
}
return STATUS_SUCCESS;
}
NTSTATUS CIndirectDeviceContext::MonitorQueryTargetModes(
const IDARG_IN_QUERYTARGETMODES* inArgs,
IDARG_OUT_QUERYTARGETMODES* outArgs)
{
CSettings::DisplayModes modes;
AcquireSRWLockShared(&m_modeLock);
modes = m_displayModes;
ReleaseSRWLockShared(&m_modeLock);
outArgs->TargetModeBufferOutputCount = (UINT)modes.size();
if (inArgs->TargetModeBufferInputCount < (UINT)modes.size())
return (inArgs->TargetModeBufferInputCount > 0) ? STATUS_BUFFER_TOO_SMALL : STATUS_SUCCESS;
auto* mode = inArgs->pTargetModes;
for (auto it = modes.cbegin(); it != modes.cend(); ++it, ++mode)
{
mode->Size = sizeof(IDDCX_TARGET_MODE);
FillSignalInfo(mode->TargetVideoSignalInfo.targetVideoSignalInfo, it->width, it->height, it->refresh, false);
}
return STATUS_SUCCESS;
}
#ifdef HAS_IDDCX_110
NTSTATUS CIndirectDeviceContext::ParseMonitorDescription2(
const IDARG_IN_PARSEMONITORDESCRIPTION2* inArgs,
IDARG_OUT_PARSEMONITORDESCRIPTION* outArgs)
{
CSettings::DisplayModes modes;
AcquireSRWLockShared(&m_modeLock);
modes = m_displayModes;
ReleaseSRWLockShared(&m_modeLock);
outArgs->MonitorModeBufferOutputCount = (UINT)modes.size();
outArgs->PreferredMonitorModeIdx = 0;
if (inArgs->MonitorModeBufferInputCount < (UINT)modes.size())
return (inArgs->MonitorModeBufferInputCount > 0) ? STATUS_BUFFER_TOO_SMALL : STATUS_SUCCESS;
auto * mode = inArgs->pMonitorModes;
for (auto it = modes.cbegin(); it != modes.cend(); ++it, ++mode)
{
ZeroMemory(mode, sizeof(*mode));
mode->Size = sizeof(IDDCX_MONITOR_MODE2);
mode->Origin = IDDCX_MONITOR_MODE_ORIGIN_MONITORDESCRIPTOR;
FillSignalInfo(mode->MonitorVideoSignalInfo, it->width, it->height, it->refresh, true);
mode->BitsPerComponent = GetWireBitsPerComponent(CanProcessFP16());
if (it->preferred)
outArgs->PreferredMonitorModeIdx =
(UINT)std::distance(modes.cbegin(), it);
}
return STATUS_SUCCESS;
}
NTSTATUS CIndirectDeviceContext::MonitorQueryTargetModes2(
const IDARG_IN_QUERYTARGETMODES2* inArgs,
IDARG_OUT_QUERYTARGETMODES* outArgs)
{
CSettings::DisplayModes modes;
AcquireSRWLockShared(&m_modeLock);
modes = m_displayModes;
ReleaseSRWLockShared(&m_modeLock);
outArgs->TargetModeBufferOutputCount = (UINT)modes.size();
if (inArgs->TargetModeBufferInputCount < (UINT)modes.size())
return STATUS_SUCCESS;
if (!inArgs->pTargetModes)
return STATUS_INVALID_PARAMETER;
auto* mode = inArgs->pTargetModes;
for (auto it = modes.cbegin(); it != modes.cend(); ++it, ++mode)
{
ZeroMemory(mode, sizeof(*mode));
mode->Size = sizeof(IDDCX_TARGET_MODE2);
FillSignalInfo(mode->TargetVideoSignalInfo.targetVideoSignalInfo, it->width, it->height, it->refresh, false);
mode->BitsPerComponent = GetWireBitsPerComponent(CanProcessFP16());
}
return STATUS_SUCCESS;
}
#endif
void CIndirectDeviceContext::SetResolution(int width, int height)
{
CSettings::DisplayMode mode = {};
mode.width = width;
mode.height = height;
mode.refresh = g_settings.GetDefaultRefresh();
mode.preferred = true;
AcquireSRWLockExclusive(&m_stateLock);
m_setMode = mode;
m_doSetMode = true;
ReleaseSRWLockExclusive(&m_stateLock);
g_settings.SetExtraMode(mode);
PopulateDefaultModes();
// IddCxMonitorUpdateModes[2] does not invalidate Windows' cached mode list,
// so the only reliable way to apply a new mode is to depart and re-arrive the
// monitor, forcing Windows to rebuild the topology from the new mode list.
ReplugMonitor();
}
bool CIndirectDeviceContext::SetupLGMP(size_t alignSize)
{
// this may get called multiple times as we need to delay calling it until
// we can determine the required alignment from the GPU in use
if (m_lgmp)
return true;
m_alignSize = alignSize;
std::stringstream ss;
{
KVMFR kvmfr = {};
memcpy_s(kvmfr.magic, sizeof(kvmfr.magic), KVMFR_MAGIC, sizeof(KVMFR_MAGIC) - 1);
kvmfr.version = KVMFR_VERSION;
kvmfr.features =
KVMFR_FEATURE_SETCURSORPOS |
KVMFR_FEATURE_WINDOWSIZE;
strncpy_s(kvmfr.hostver, LG_VERSION_STR, sizeof(kvmfr.hostver) - 1);
ss.write(reinterpret_cast<const char *>(&kvmfr), sizeof(kvmfr));
}
{
const std::string & model = CPlatformInfo::GetCPUModel();
KVMFRRecord_VMInfo * vmInfo = static_cast<KVMFRRecord_VMInfo *>(calloc(1, sizeof(*vmInfo)));
if (!vmInfo)
{
DEBUG_ERROR("Failed to allocate KVMFRRecord_VMInfo");
return false;
}
vmInfo->cpus = static_cast<uint8_t>(CPlatformInfo::GetProcCount ());
vmInfo->cores = static_cast<uint8_t>(CPlatformInfo::GetCoreCount ());
vmInfo->sockets = static_cast<uint8_t>(CPlatformInfo::GetSocketCount());
const uint8_t * uuid = CPlatformInfo::GetUUID();
memcpy_s (vmInfo->uuid, sizeof(vmInfo->uuid), uuid, 16);
strncpy_s(vmInfo->capture, "Looking Glass IDD Driver", sizeof(vmInfo->capture));
KVMFRRecord * record = static_cast<KVMFRRecord *>(calloc(1, sizeof(*record)));
if (!record)
{
DEBUG_ERROR("Failed to allocate KVMFRRecord");
return false;
}
record->type = KVMFR_RECORD_VMINFO;
record->size = sizeof(*vmInfo) + (uint32_t)model.length() + 1;
ss.write(reinterpret_cast<const char*>(record ), sizeof(*record));
ss.write(reinterpret_cast<const char*>(vmInfo ), sizeof(*vmInfo));
ss.write(reinterpret_cast<const char*>(model.c_str()), model.length() + 1);
}
{
KVMFRRecord_OSInfo * osInfo = static_cast<KVMFRRecord_OSInfo *>(calloc(1, sizeof(*osInfo)));
if (!osInfo)
{
DEBUG_ERROR("Failed to allocate KVMFRRecord_OSInfo");
return false;
}
osInfo->os = KVMFR_OS_WINDOWS;
const std::string & osName = CPlatformInfo::GetProductName();
KVMFRRecord* record = static_cast<KVMFRRecord*>(calloc(1, sizeof(*record)));
if (!record)
{
DEBUG_ERROR("Failed to allocate KVMFRRecord");
return false;
}
record->type = KVMFR_RECORD_OSINFO;
record->size = sizeof(*osInfo) + (uint32_t)osName.length() + 1;
ss.write(reinterpret_cast<const char*>(record), sizeof(*record));
ss.write(reinterpret_cast<const char*>(osInfo), sizeof(*osInfo));
ss.write(reinterpret_cast<const char*>(osName.c_str()), osName.length() + 1);
}
LGMP_STATUS status;
std::string udata = ss.str();
if ((status = lgmpHostInit(m_ivshmem.GetMem(), (uint32_t)m_ivshmem.GetSize(),
&m_lgmp, (uint32_t)udata.size(), (uint8_t*)&udata[0])) != LGMP_OK)
{
DEBUG_ERROR("lgmpHostInit Failed: %s", lgmpStatusString(status));
return false;
}
if ((status = lgmpHostQueueNew(m_lgmp, FRAME_QUEUE_CONFIG, &m_frameQueue)) != LGMP_OK)
{
DEBUG_ERROR("lgmpHostQueueCreate Failed (Frame): %s", lgmpStatusString(status));
return false;
}
if ((status = lgmpHostQueueNew(m_lgmp, POINTER_QUEUE_CONFIG, &m_pointerQueue)) != LGMP_OK)
{
DEBUG_ERROR("lgmpHostQueueCreate Failed (Pointer): %s", lgmpStatusString(status));
return false;
}
for (int i = 0; i < LGMP_Q_POINTER_LEN; ++i)
{
if ((status = lgmpHostMemAlloc(m_lgmp, MAX_POINTER_SIZE, &m_pointerMemory[i])) != LGMP_OK)
{
DEBUG_ERROR("lgmpHostMemAlloc Failed (Pointer): %s", lgmpStatusString(status));
return false;
}
memset(lgmpHostMemPtr(m_pointerMemory[i]), 0, MAX_POINTER_SIZE);
}
for (int i = 0; i < POINTER_SHAPE_BUFFERS; ++i)
{
if ((status = lgmpHostMemAlloc(m_lgmp, MAX_POINTER_SIZE, &m_pointerShapeMemory[i])) != LGMP_OK)
{
DEBUG_ERROR("lgmpHostMemAlloc Failed (Pointer Shapes): %s", lgmpStatusString(status));
return false;
}
memset(lgmpHostMemPtr(m_pointerShapeMemory[i]), 0, MAX_POINTER_SIZE);
}
for (int i = 0; i < COLOR_TRANSFORM_BUFFERS; ++i)
{
if ((status = lgmpHostMemAlloc(m_lgmp,
sizeof(KVMFRCursor) + sizeof(KVMFRColorTransform),
&m_pointerTransformMemory[i])) != LGMP_OK)
{
DEBUG_ERROR("lgmpHostMemAlloc Failed (Pointer Transform): %s",
lgmpStatusString(status));
return false;
}
memset(lgmpHostMemPtr(m_pointerTransformMemory[i]), 0,
sizeof(KVMFRCursor) + sizeof(KVMFRColorTransform));
}
m_maxFrameSize = lgmpHostMemAvail(m_lgmp);
m_maxFrameSize = (m_maxFrameSize -(m_alignSize - 1)) & ~(m_alignSize - 1);
m_maxFrameSize /= LGMP_Q_FRAME_LEN;
DEBUG_INFO("Max Frame Size: %u MiB", (unsigned int)(m_maxFrameSize / 1048576LL));
for (int i = 0; i < LGMP_Q_FRAME_LEN; ++i)
{
if ((status = lgmpHostMemAllocAligned(m_lgmp, (uint32_t)m_maxFrameSize,
(uint32_t)m_alignSize, &m_frameMemory[i])) != LGMP_OK)
{
DEBUG_ERROR("lgmpHostMemAllocAligned Failed (Frame): %s", lgmpStatusString(status));
return false;
}
m_frame[i] = (KVMFRFrame *)lgmpHostMemPtr(m_frameMemory[i]);
/**
* put the framebuffer on the border of the next page, this is to allow for
* aligned DMA tranfers by the reciever */
const size_t alignOffset = alignSize - sizeof(FrameBuffer);
m_frame[i]->offset = (uint32_t)alignOffset;
m_frameBuffer[i] = (FrameBuffer*)(((uint8_t*)m_frame[i]) + alignOffset);
}
WDF_TIMER_CONFIG config;
WDF_TIMER_CONFIG_INIT_PERIODIC(&config,
[](WDFTIMER timer) -> void
{
WDFOBJECT parent = WdfTimerGetParentObject(timer);
auto wrapper = WdfObjectGet_CIndirectDeviceContextWrapper(parent);
wrapper->context->LGMPTimer();
},
10);
config.AutomaticSerialization = FALSE;
/**
* documentation states that Dispatch is not available under the UDMF, however...
* using Passive returns a not supported error, and Dispatch works.
*/
WDF_OBJECT_ATTRIBUTES attribs;
WDF_OBJECT_ATTRIBUTES_INIT(&attribs);
attribs.ParentObject = m_wdfDevice;
attribs.ExecutionLevel = WdfExecutionLevelDispatch;
NTSTATUS s = WdfTimerCreate(&config, &attribs, &m_lgmpTimer);
if (!NT_SUCCESS(s))
{
DEBUG_ERROR_HR(s, "Timer creation failed");
return false;
}
WdfTimerStart(m_lgmpTimer, WDF_REL_TIMEOUT_IN_MS(10));
return true;
}
void CIndirectDeviceContext::DeInitLGMP()
{
InterlockedExchange(&m_publishedFrameIndex, -1);
// The retry timer callback dereferences this context, so make sure it is
// stopped and drained before we tear anything down. Wait for any in-flight
// callback to complete.
if (m_initTimer)
{
WdfTimerStop(m_initTimer, TRUE);
m_initTimer = nullptr;
}
if (m_lgmp == nullptr)
return;
if (m_lgmpTimer)
{
WdfTimerStop(m_lgmpTimer, TRUE);
m_lgmpTimer = nullptr;
}
for (int i = 0; i < LGMP_Q_FRAME_LEN; ++i)
lgmpHostMemFree(&m_frameMemory[i]);
for (int i = 0; i < LGMP_Q_POINTER_LEN; ++i)
lgmpHostMemFree(&m_pointerMemory[i]);
for (int i = 0; i < POINTER_SHAPE_BUFFERS; ++i)
lgmpHostMemFree(&m_pointerShapeMemory[i]);
for (int i = 0; i < COLOR_TRANSFORM_BUFFERS; ++i)
lgmpHostMemFree(&m_pointerTransformMemory[i]);
lgmpHostFree(&m_lgmp);
}
void CIndirectDeviceContext::LGMPTimer()
{
// Rebuild the monitor queued by ReplugMonitor, off the IddCx callback thread.
if (InterlockedExchange(&m_finishInitQueued, 0))
{
FinishInit(0);
return;
}
if (InterlockedExchange(&m_replugQueued, 0))
{
ReplugMonitor();
return;
}
LGMP_STATUS status;
if ((status = lgmpHostProcess(m_lgmp)) != LGMP_OK)
{
if (status == LGMP_ERR_CORRUPTED)
{
DEBUG_WARN("LGMP reported the shared memory has been corrupted, attempting to recover\n");
//TODO: fixme - reinit
return;
}
DEBUG_ERROR("lgmpHostProcess Failed: %s", lgmpStatusString(status));
//TODO: fixme - shutdown
return;
}
uint8_t data[LGMP_MSGS_SIZE];
size_t size;
while ((status = lgmpHostReadData(m_pointerQueue, &data, &size)) == LGMP_OK)
{
KVMFRMessage * msg = (KVMFRMessage *)data;
switch (msg->type)
{
case KVMFR_MESSAGE_SETCURSORPOS:
{
KVMFRSetCursorPos* sp = (KVMFRSetCursorPos*)msg;
g_pipe.SetCursorPos(sp->x, sp->y);
break;
}
case KVMFR_MESSAGE_WINDOWSIZE:
{
KVMFRWindowSize* ws = (KVMFRWindowSize*)msg;
SetResolution(ws->w, ws->h);
}
}
lgmpHostAckData(m_pointerQueue);
}
if (lgmpHostQueueNewSubs(m_frameQueue) && m_monitor)
{
const LONG frameIndex =
InterlockedCompareExchange(&m_publishedFrameIndex, 0, 0);
if (frameIndex >= 0)
lgmpHostQueuePost(m_frameQueue, 0, m_frameMemory[frameIndex]);
}
if (lgmpHostQueueNewSubs(m_pointerQueue))
{
ResendCursor();
SendColorTransform();
}
}
bool CIndirectDeviceContext::FrameBufferAvailable() const
{
return m_lgmp && m_frameQueue &&
lgmpHostQueuePending(m_frameQueue) < LGMP_Q_FRAME_LEN;
}
CIndirectDeviceContext::PreparedFrameBuffer CIndirectDeviceContext::PrepareFrameBuffer(
unsigned pitch, const D12FrameFormat& srcFormat, const D12FrameFormat& dstFormat,
const RECT * dirtyRects, unsigned nbDirtyRects)
{
PreparedFrameBuffer result = {};
if (!FrameBufferAvailable())
return result;
if (m_width != dstFormat.desc.Width ||
m_height != dstFormat.desc.Height ||
m_pitch != pitch ||
m_format != dstFormat.desc.Format ||
m_frameType != dstFormat.format)
{
m_width = (unsigned)dstFormat.desc.Width;
m_height = dstFormat.desc.Height;
m_format = dstFormat.desc.Format;
m_frameType = dstFormat.format;
m_pitch = pitch;
++m_formatVer;
}
// Detect HDR metadata changes that require a format version bump
// so the client knows to re-apply the HDR image description.
//
// Use dstFormat so post-processing can propagate any metadata adjustments.
if (dstFormat.hdr)
{
const bool metadataChanged =
m_lastHDRMetadata != dstFormat.hdrMetadata ||
(dstFormat.hdrMetadata &&
(memcmp(m_lastHDRDisplayPrimary, dstFormat.displayPrimary, sizeof(m_lastHDRDisplayPrimary)) != 0 ||
memcmp(m_lastHDRWhitePoint , dstFormat.whitePoint , sizeof(m_lastHDRWhitePoint )) != 0 ||
m_lastHDRMaxDisplayLuminance != dstFormat.maxDisplayLuminance ||
m_lastHDRMinDisplayLuminance != dstFormat.minDisplayLuminance ||
m_lastHDRMaxContentLightLevel != dstFormat.maxContentLightLevel ||
m_lastHDRMaxFrameAverageLightLevel != dstFormat.maxFrameAverageLightLevel));
if (!m_lastHDRActive || metadataChanged || m_lastSDRWhiteLevel != dstFormat.sdrWhiteLevel)
++m_formatVer;
}
else if (m_lastHDRActive)
{
// HDR was turned off
++m_formatVer;
}
m_lastHDRActive = dstFormat.hdr;
m_lastHDRMetadata = dstFormat.hdrMetadata;
memcpy(m_lastHDRDisplayPrimary, dstFormat.displayPrimary, sizeof(m_lastHDRDisplayPrimary));
memcpy(m_lastHDRWhitePoint , dstFormat.whitePoint , sizeof(m_lastHDRWhitePoint ));
m_lastHDRMaxDisplayLuminance = dstFormat.maxDisplayLuminance;
m_lastHDRMinDisplayLuminance = dstFormat.minDisplayLuminance;
m_lastHDRMaxContentLightLevel = dstFormat.maxContentLightLevel;
m_lastHDRMaxFrameAverageLightLevel = dstFormat.maxFrameAverageLightLevel;
m_lastSDRWhiteLevel = dstFormat.sdrWhiteLevel;
if (++m_frameIndex == LGMP_Q_FRAME_LEN)
m_frameIndex = 0;
KVMFRFrame * fi = m_frame[m_frameIndex];
if (dstFormat.format == FRAME_TYPE_INVALID)
{
DEBUG_ERROR("Unsupported frame format, skipping frame");
return result;
}
const unsigned maxRows = (unsigned)(m_maxFrameSize / pitch);
const int bpp = dstFormat.format == FRAME_TYPE_RGBA16F ? 8 : 4;
KVMFRFrameFlags flags =
(dstFormat.hdr ? FRAME_FLAG_HDR : 0) |
(dstFormat.hdrPQ ? FRAME_FLAG_HDR_PQ : 0) |
(dstFormat.hdrMetadata ? FRAME_FLAG_HDR_METADATA : 0);
if (maxRows < dstFormat.desc.Height)
flags |= FRAME_FLAG_TRUNCATED;
fi->formatVer = m_formatVer;
fi->frameSerial = m_frameSerial++;
fi->screenWidth = srcFormat.width;
fi->screenHeight = srcFormat.height;
fi->dataWidth = (unsigned)dstFormat.desc.Width;
fi->dataHeight = min(maxRows, dstFormat.desc.Height);
fi->frameWidth = dstFormat.width;
fi->frameHeight = dstFormat.height;
fi->stride = pitch / bpp;
fi->pitch = pitch;
// fi->offset is initialized at startup
fi->flags = flags;
fi->sdrWhiteLevel = dstFormat.sdrWhiteLevel;
fi->rotation = FRAME_ROT_0;
fi->type = dstFormat.format;
if (flags & FRAME_FLAG_HDR_METADATA)
{
memcpy(fi->hdrDisplayPrimary, dstFormat.displayPrimary, sizeof(fi->hdrDisplayPrimary));
memcpy(fi->hdrWhitePoint , dstFormat.whitePoint , sizeof(fi->hdrWhitePoint));
fi->hdrMaxDisplayLuminance = dstFormat.maxDisplayLuminance;
fi->hdrMinDisplayLuminance = dstFormat.minDisplayLuminance;
fi->hdrMaxContentLightLevel = dstFormat.maxContentLightLevel;
fi->hdrMaxFrameAverageLightLevel = dstFormat.maxFrameAverageLightLevel;
}
else
{
memset(fi->hdrDisplayPrimary, 0, sizeof(fi->hdrDisplayPrimary));
memset(fi->hdrWhitePoint , 0, sizeof(fi->hdrWhitePoint ));
fi->hdrMaxDisplayLuminance = 0;
fi->hdrMinDisplayLuminance = 0;
fi->hdrMaxContentLightLevel = 0;
fi->hdrMaxFrameAverageLightLevel = 0;
}
fi->damageRectsCount = 0;
if (nbDirtyRects <= ARRAYSIZE(fi->damageRects))
{
fi->damageRectsCount = nbDirtyRects;
for (unsigned i = 0; i < nbDirtyRects; ++i)
{
fi->damageRects[i].x = dirtyRects[i].left;
fi->damageRects[i].y = dirtyRects[i].top;
fi->damageRects[i].width = dirtyRects[i].right - dirtyRects[i].left;
fi->damageRects[i].height = dirtyRects[i].bottom - dirtyRects[i].top;
}
}
FrameBuffer* fb = m_frameBuffer[m_frameIndex];
fb->wp = 0;
result.frameIndex = m_frameIndex;
result.mem = fb->data;
return result;
}
bool CIndirectDeviceContext::PublishFrameBuffer(unsigned frameIndex)
{
if (!m_frameQueue || frameIndex >= LGMP_Q_FRAME_LEN)
return false;
/* Make resends select this submitted frame before posting it. This prevents
* a new subscriber racing publication from receiving the previous frame
* after the new one. */
InterlockedExchange(&m_publishedFrameIndex, (LONG)frameIndex);
const LGMP_STATUS status =
lgmpHostQueuePost(m_frameQueue, 0, m_frameMemory[frameIndex]);
if (status != LGMP_OK)
{
DEBUG_ERROR("Failed to publish frame: %s", lgmpStatusString(status));
return false;
}
return true;
}
void CIndirectDeviceContext::WriteFrameBuffer(unsigned frameIndex, void* src, size_t offset, size_t len, bool setWritePos) const
{
FrameBuffer * fb = m_frameBuffer[frameIndex];
memcpy(
(void *)((uintptr_t)fb->data + offset),
(void *)((uintptr_t)src + offset),
len);
if (setWritePos)
fb->wp = (uint32_t)(offset + len);
}
void CIndirectDeviceContext::FinalizeFrameBuffer(unsigned frameIndex) const
{
FrameBuffer * fb = m_frameBuffer[frameIndex];
fb->wp = m_height * m_pitch;
}
void CIndirectDeviceContext::SendCursor(const IDARG_OUT_QUERY_HWCURSOR& info,
const BYTE * data, UINT sdrWhiteLevel)
{
PLGMPMemory mem;
if (info.CursorShapeInfo.CursorType == IDDCX_CURSOR_SHAPE_TYPE_UNINITIALIZED)
{
mem = m_pointerMemory[m_pointerMemoryIndex];
if (++m_pointerMemoryIndex == LGMP_Q_POINTER_LEN)
m_pointerMemoryIndex = 0;
}
else
{
mem = m_pointerShapeMemory[m_pointerShapeIndex];
if (++m_pointerShapeIndex == POINTER_SHAPE_BUFFERS)
m_pointerShapeIndex = 0;
}
KVMFRCursor * cursor = (KVMFRCursor *)lgmpHostMemPtr(mem);
cursor->sdrWhiteLevel = sdrWhiteLevel ?
sdrWhiteLevel : KVMFR_SDR_WHITE_LEVEL_DEFAULT;
m_cursorVisible = info.IsCursorVisible;
uint32_t flags = CURSOR_FLAG_VISIBLE_VALID;
if (info.IsCursorVisible)
{
m_cursorX = info.X;
m_cursorY = info.Y;
cursor->x = (int16_t)info.X;
cursor->y = (int16_t)info.Y;
flags |= CURSOR_FLAG_POSITION | CURSOR_FLAG_VISIBLE;
}
if (info.CursorShapeInfo.CursorType != IDDCX_CURSOR_SHAPE_TYPE_UNINITIALIZED)
{
memcpy(cursor + 1, data,
(size_t)info.CursorShapeInfo.Height * info.CursorShapeInfo.Pitch);
cursor->hx = (int8_t )info.CursorShapeInfo.XHot;
cursor->hy = (int8_t )info.CursorShapeInfo.YHot;
cursor->width = (uint32_t)info.CursorShapeInfo.Width;
cursor->height = (uint32_t)info.CursorShapeInfo.Height;
cursor->pitch = (uint32_t)info.CursorShapeInfo.Pitch;
switch (info.CursorShapeInfo.CursorType)
{
case IDDCX_CURSOR_SHAPE_TYPE_ALPHA:
cursor->type = CURSOR_TYPE_COLOR;
break;
case IDDCX_CURSOR_SHAPE_TYPE_MASKED_COLOR:
cursor->type = CURSOR_TYPE_MASKED_COLOR;
break;
}
flags |= CURSOR_FLAG_SHAPE;
m_pointerShape = mem;
}
LGMP_STATUS status;
while ((status = lgmpHostQueuePost(m_pointerQueue, flags, mem)) != LGMP_OK)
{
if (status == LGMP_ERR_QUEUE_FULL)
{
Sleep(1);
continue;
}
DEBUG_ERROR("lgmpHostQueuePost Failed (Pointer): %s", lgmpStatusString(status));
break;
}
}
void CIndirectDeviceContext::SetColorTransform(
std::shared_ptr<const D12ColorTransform> transform)
{
AcquireSRWLockExclusive(&m_colorTransformLock);
m_colorTransform = std::move(transform);
ReleaseSRWLockExclusive(&m_colorTransformLock);
SendColorTransform();
}
std::shared_ptr<const D12ColorTransform>
CIndirectDeviceContext::GetColorTransform() const
{
AcquireSRWLockShared(&m_colorTransformLock);
auto transform = m_colorTransform;
ReleaseSRWLockShared(&m_colorTransformLock);
return transform;
}
#ifdef HAS_IDDCX_110
void CIndirectDeviceContext::SetHDRActive(const struct IDDCX_HDR10_METADATA * hdrMeta)
{
AcquireSRWLockExclusive(&m_hdrLock);
if (!hdrMeta)
{
m_hdrActive = false;
ReleaseSRWLockExclusive(&m_hdrLock);
return;
}
m_hdrActive = true;
m_hdrDisplayPrimary[0][0] = hdrMeta->RedPrimary [0];
m_hdrDisplayPrimary[0][1] = hdrMeta->RedPrimary [1];
m_hdrDisplayPrimary[1][0] = hdrMeta->GreenPrimary[0];
m_hdrDisplayPrimary[1][1] = hdrMeta->GreenPrimary[1];
m_hdrDisplayPrimary[2][0] = hdrMeta->BluePrimary [0];
m_hdrDisplayPrimary[2][1] = hdrMeta->BluePrimary [1];
m_hdrWhitePoint [0] = hdrMeta->WhitePoint [0];
m_hdrWhitePoint [1] = hdrMeta->WhitePoint [1];
m_hdrMaxDisplayLuminance = hdrMeta->MaxMasteringLuminance;
m_hdrMinDisplayLuminance = hdrMeta->MinMasteringLuminance;
m_hdrMaxContentLightLevel = hdrMeta->MaxContentLightLevel;
m_hdrMaxFrameAverageLightLevel = hdrMeta->MaxFrameAverageLightLevel;
ReleaseSRWLockExclusive(&m_hdrLock);
}
#endif
bool CIndirectDeviceContext::GetHDRMetadata(D12FrameFormat & format) const
{
AcquireSRWLockShared(&m_hdrLock);
if (!m_hdrActive)
{
ReleaseSRWLockShared(&m_hdrLock);
return false;
}
memcpy(format.displayPrimary, m_hdrDisplayPrimary, sizeof(format.displayPrimary));
memcpy(format.whitePoint , m_hdrWhitePoint , sizeof(format.whitePoint ));
format.maxDisplayLuminance = m_hdrMaxDisplayLuminance;
format.minDisplayLuminance = m_hdrMinDisplayLuminance;
format.maxContentLightLevel = m_hdrMaxContentLightLevel;
format.maxFrameAverageLightLevel = m_hdrMaxFrameAverageLightLevel;
ReleaseSRWLockShared(&m_hdrLock);
return true;
}
void CIndirectDeviceContext::SendColorTransform()
{
if (!m_pointerQueue || !m_pointerTransformMemory[0])
return;
PLGMPMemory mem = m_pointerTransformMemory[m_pointerTransformIndex];
if (++m_pointerTransformIndex == COLOR_TRANSFORM_BUFFERS)
m_pointerTransformIndex = 0;
KVMFRCursor * cursor = (KVMFRCursor *)lgmpHostMemPtr(mem);
KVMFRColorTransform * output =
(KVMFRColorTransform *)(cursor + 1);
const auto transform = GetColorTransform();
output->flags = 0;
if (transform)
{
if (transform->matrixEnabled)
output->flags |= KVMFR_COLOR_TRANSFORM_MATRIX;
if (transform->lutEnabled)
output->flags |= KVMFR_COLOR_TRANSFORM_LUT;
memcpy(output->matrix, transform->matrix, sizeof(output->matrix));
output->scalar = transform->scalar;
memcpy(output->lut, transform->lut, sizeof(output->lut));
}
LGMP_STATUS status;
while ((status = lgmpHostQueuePost(m_pointerQueue,
CURSOR_FLAG_COLOR_TRANSFORM, mem)) != LGMP_OK)
{
if (status == LGMP_ERR_QUEUE_FULL)
{
Sleep(1);
continue;
}
DEBUG_ERROR("lgmpHostQueuePost Failed (Pointer Transform): %s",
lgmpStatusString(status));
break;
}
}
void CIndirectDeviceContext::ResendCursor()
{
PLGMPMemory mem = m_pointerShape;
if (!mem)
return;
KVMFRCursor* cursor = (KVMFRCursor*)lgmpHostMemPtr(mem);
cursor->x = (int16_t)m_cursorX;
cursor->y = (int16_t)m_cursorY;
const uint32_t flags =
CURSOR_FLAG_POSITION | CURSOR_FLAG_SHAPE | CURSOR_FLAG_VISIBLE_VALID |
(m_cursorVisible ? CURSOR_FLAG_VISIBLE : 0);
LGMP_STATUS status;
while ((status = lgmpHostQueuePost(m_pointerQueue, flags, mem)) != LGMP_OK)
{
if (status == LGMP_ERR_QUEUE_FULL)
{
Sleep(1);
continue;
}
DEBUG_ERROR("lgmpHostQueuePost Failed (Pointer): %s", lgmpStatusString(status));
break;
}
}
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