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[client/host/idd/lgmp] add additional timing metrics

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This commit is contained in:
Geoffrey McRae
2026-08-03 10:57:32 +10:00
parent 3035fa6282
commit 7533c855c2
18 changed files with 339 additions and 88 deletions
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49
idd/LGIdd/CIndirectDeviceContext.cpp
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@@ -212,7 +212,8 @@ void CIndirectDeviceContext::InitAdapter()
return;
}
if (InterlockedCompareExchange(&m_initInProgress, 1, 0) != 0)
LONG initExpected = 0;
if (!m_initInProgress.compare_exchange_strong(initExpected, 1))
{
DEBUG_TRACE("Adapter initialization skipped: initialization already in progress");
return;
@@ -227,7 +228,7 @@ void CIndirectDeviceContext::InitAdapter()
{
DEBUG_WARN("IVSHMEM not available yet, scheduling init retry");
ScheduleInitRetry();
InterlockedExchange(&m_initInProgress, 0);
m_initInProgress.store(0);
return;
}
m_ivshmemOpened = true;
@@ -370,7 +371,7 @@ void CIndirectDeviceContext::InitAdapter()
if (!NT_SUCCESS(status))
{
DEBUG_ERROR_HR(status, "IddCxAdapterInitAsync Failed");
InterlockedExchange(&m_initInProgress, 0);
m_initInProgress.store(0);
return;
}
@@ -378,7 +379,7 @@ void CIndirectDeviceContext::InitAdapter()
if (!m_adapter)
{
DEBUG_ERROR("IddCxAdapterInitAsync succeeded without returning an adapter object");
InterlockedExchange(&m_initInProgress, 0);
m_initInProgress.store(0);
return;
}
@@ -401,7 +402,7 @@ void CIndirectDeviceContext::InitAdapter()
// Adapter is up; no need to keep retrying.
StopInitRetry();
InterlockedExchange(&m_initInProgress, 0);
m_initInProgress.store(0);
DEBUG_INFO("Adapter initialization request complete; returning to IddCx");
}
@@ -501,7 +502,7 @@ void CIndirectDeviceContext::ReplugMonitor()
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);
m_finishInitQueued.store(0);
FinishInit(0);
return;
}
@@ -537,7 +538,7 @@ void CIndirectDeviceContext::ReplugMonitor()
// 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);
m_finishInitQueued.store(1);
}
void CIndirectDeviceContext::OnMonitorDestroyed(IDDCX_MONITOR monitor)
@@ -571,7 +572,7 @@ void CIndirectDeviceContext::OnSwapChainReleased()
ReleaseSRWLockExclusive(&m_stateLock);
if (rebuild)
InterlockedExchange(&m_finishInitQueued, 1);
m_finishInitQueued.store(1);
}
void CIndirectDeviceContext::OnSwapChainReady()
@@ -613,7 +614,7 @@ void CIndirectDeviceContext::OnSwapChainReady()
g_pipe.SetDeviceContext(this);
if (replug)
InterlockedExchange(&m_replugQueued, 1);
m_replugQueued.store(1);
else if (doSetMode)
g_pipe.SetDisplayMode(mode.width, mode.height, mode.refresh);
}
@@ -1100,7 +1101,7 @@ bool CIndirectDeviceContext::SetupLGMP(size_t alignSize)
void CIndirectDeviceContext::DeInitLGMP()
{
InterlockedExchange(&m_publishedFrameIndex, -1);
m_publishedFrameIndex.store(-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
@@ -1135,13 +1136,13 @@ void CIndirectDeviceContext::DeInitLGMP()
void CIndirectDeviceContext::LGMPTimer()
{
// Rebuild the monitor queued by ReplugMonitor, off the IddCx callback thread.
if (InterlockedExchange(&m_finishInitQueued, 0))
if (m_finishInitQueued.exchange(0))
{
FinishInit(0);
return;
}
if (InterlockedExchange(&m_replugQueued, 0))
if (m_replugQueued.exchange(0))
{
ReplugMonitor();
return;
@@ -1188,8 +1189,7 @@ void CIndirectDeviceContext::LGMPTimer()
if (lgmpHostQueueNewSubs(m_frameQueue) && m_monitor)
{
const LONG frameIndex =
InterlockedCompareExchange(&m_publishedFrameIndex, 0, 0);
const LONG frameIndex = m_publishedFrameIndex.load();
if (frameIndex >= 0)
lgmpHostQueuePost(m_frameQueue, 0, m_frameMemory[frameIndex]);
}
@@ -1299,6 +1299,11 @@ CIndirectDeviceContext::PreparedFrameBuffer CIndirectDeviceContext::PrepareFrame
// fi->offset is initialized at startup
fi->flags = flags;
fi->sdrWhiteLevel = dstFormat.sdrWhiteLevel;
fi->captureTime = 0;
fi->postProcessTime = 0;
fi->copyTime = 0;
fi->timingSerial = 0;
InterlockedExchange((volatile LONG *)&fi->timingValid, 0);
fi->rotation = FRAME_ROT_0;
fi->type = dstFormat.format;
@@ -1351,7 +1356,7 @@ bool CIndirectDeviceContext::PublishFrameBuffer(unsigned frameIndex)
/* 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);
m_publishedFrameIndex.store(static_cast<LONG>(frameIndex));
const LGMP_STATUS status =
lgmpHostQueuePost(m_frameQueue, 0, m_frameMemory[frameIndex]);
@@ -1364,6 +1369,20 @@ bool CIndirectDeviceContext::PublishFrameBuffer(unsigned frameIndex)
return true;
}
void CIndirectDeviceContext::SetFrameTiming(unsigned frameIndex,
uint64_t captureTime, uint64_t postProcessTime, uint64_t copyTime)
{
if (frameIndex >= LGMP_Q_FRAME_LEN)
return;
KVMFRFrame * frame = m_frame[frameIndex];
frame->captureTime = captureTime;
frame->postProcessTime = postProcessTime;
frame->copyTime = copyTime;
frame->timingSerial = frame->frameSerial;
InterlockedExchange((volatile LONG *)&frame->timingValid, 1);
}
void CIndirectDeviceContext::WriteFrameBuffer(unsigned frameIndex, void* src, size_t offset, size_t len, bool setWritePos) const
{
FrameBuffer * fb = m_frameBuffer[frameIndex];