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[idd] elect the fastest frame timing client

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This commit is contained in:
Geoffrey McRae
2026-08-04 13:05:46 +10:00
parent b23430b9a8
commit 1176e78a7f
6 changed files with 321 additions and 0 deletions
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23
idd/LGIdd/CIndirectDeviceContext.cpp
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@@ -1195,6 +1195,7 @@ void CIndirectDeviceContext::DeInitLGMP()
if (m_lgmp == nullptr)
{
m_frameScheduler.Reset();
m_publishedFrameIndex.store(-1, std::memory_order_release);
m_frameResendPending = false;
return;
@@ -1206,6 +1207,8 @@ void CIndirectDeviceContext::DeInitLGMP()
m_lgmpTimer = nullptr;
}
m_frameScheduler.Reset();
AcquireSRWLockExclusive(&m_framePublishLock);
m_publishedFrameIndex.store(-1, std::memory_order_release);
m_frameResendPending = false;
@@ -1256,6 +1259,16 @@ void CIndirectDeviceContext::LGMPTimer()
return;
}
const uint64_t now = CFrameScheduler::Nanotime();
uint32_t clientIDs[LGMP_MAX_CLIENTS] = {};
unsigned clientCount = 0;
status = lgmpHostGetClientIDs(m_frameQueue, clientIDs, &clientCount);
if (status == LGMP_OK)
m_frameScheduler.UpdateSubscribers(clientIDs, clientCount, now);
else
DEBUG_WARN("Failed to query LGMP frame subscribers: %s",
lgmpStatusString(status));
uint8_t data[LGMP_MSGS_SIZE];
size_t size;
while ((status = lgmpHostReadData(m_pointerQueue, &data, &size)) == LGMP_OK)
@@ -1274,6 +1287,16 @@ void CIndirectDeviceContext::LGMPTimer()
{
KVMFRWindowSize* ws = (KVMFRWindowSize*)msg;
SetResolution(ws->w, ws->h);
break;
}
case KVMFR_MESSAGE_FRAME_SCHEDULE:
{
if (size != sizeof(KVMFRFrameSchedule) ||
!m_frameScheduler.UpdateSchedule(
*reinterpret_cast<KVMFRFrameSchedule *>(msg), now))
DEBUG_WARN("Ignoring invalid KVMFR frame schedule");
break;
}
}