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[idd] avoid release frame timeouts during replug

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Drop frames when the LGMP queue is full instead of blocking
while holding an IddCx surface. Always finish every
acquired frame, including duplicate frame numbers, so
replug teardown cannot trigger the release-frame watchdog.
This commit is contained in:
Geoffrey McRae
2026-07-18 03:53:24 +10:00
parent 3095a86556
commit 234f8623dc
3 changed files with 27 additions and 17 deletions
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12
idd/LGIdd/CIndirectDeviceContext.cpp
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@@ -923,13 +923,19 @@ void CIndirectDeviceContext::LGMPTimer()
ResendCursor();
}
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 (!m_lgmp || !m_frameQueue)
if (!FrameBufferAvailable())
return result;
if (m_width != dstFormat.desc.Width ||
@@ -988,10 +994,6 @@ CIndirectDeviceContext::PreparedFrameBuffer CIndirectDeviceContext::PrepareFrame
KVMFRFrame * fi = m_frame[m_frameIndex];
// wait until there is room in the queue
while (lgmpHostQueuePending(m_frameQueue) == LGMP_Q_FRAME_LEN)
Sleep(0);
if (dstFormat.format == FRAME_TYPE_INVALID)
{
DEBUG_ERROR("Unsupported frame format, skipping frame");