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[idd] helper: coalesce no-GPU notifications

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This commit is contained in:
Geoffrey McRae
2026-08-17 02:47:06 +10:00
parent 66b9f18cb6
commit 4f695b93d6
2 changed files with 39 additions and 15 deletions
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45
idd/LGIddHelper/CNotifyWindow.cpp
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@@ -106,8 +106,15 @@ LRESULT CNotifyWindow::handleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
return 0;
case WM_NO_GPU:
handleGPUNotification((bool)wParam);
{
m_gpuNotificationQueued.store(false, std::memory_order_release);
const int status = m_pendingGPUStatus.exchange(
-1, std::memory_order_acq_rel);
if (status >= 0)
handleGPUNotification(status != 0);
queueGPUNotification();
return 0;
}
case WM_RESOLUTION_REJECTED:
{
@@ -174,6 +181,7 @@ LRESULT CNotifyWindow::onClose()
LRESULT CNotifyWindow::onDestroy()
{
m_iconRegistered.store(false, std::memory_order_release);
if (m_clipboard)
m_clipboard->Shutdown();
KillTimer(m_hwnd, ID_DISPLAY_CHECK_TIMER);
@@ -235,27 +243,40 @@ void CNotifyWindow::registerIcon()
return;
}
m_iconRegistered = true;
m_iconRegistered.store(true, std::memory_order_release);
if (!Shell_NotifyIcon(NIM_SETVERSION, &m_iconData))
DEBUG_ERROR_HR(GetLastError(), "Shell_NotifyIcon(NIM_SETVERSION)");
if (m_gpuQueue)
{
handleGPUNotification(*m_gpuQueue);
m_gpuQueue.reset();
}
queueGPUNotification();
}
void CNotifyWindow::setGPU(bool hasGPU)
{
if (m_iconRegistered)
PostMessage(m_hwnd, WM_NO_GPU, hasGPU, 0);
else
m_gpuQueue.emplace(hasGPU);
m_pendingGPUStatus.store(hasGPU ? 1 : 0, std::memory_order_release);
queueGPUNotification();
}
void CNotifyWindow::queueGPUNotification()
{
if (!m_iconRegistered.load(std::memory_order_acquire) ||
m_pendingGPUStatus.load(std::memory_order_acquire) < 0 ||
m_gpuNotificationQueued.exchange(true, std::memory_order_acq_rel))
return;
if (!PostMessage(m_hwnd, WM_NO_GPU, 0, 0))
{
m_gpuNotificationQueued.store(false, std::memory_order_release);
DEBUG_ERROR_HR(GetLastError(), "Failed to queue GPU status notification");
}
}
void CNotifyWindow::handleGPUNotification(bool hasGPU)
{
const bool notifyNoGPU = !hasGPU &&
(!m_gpuStatusKnown || m_hasGPU);
m_gpuStatusKnown = true;
m_hasGPU = hasGPU;
StringCbCopy(m_iconData.szTip, sizeof m_iconData.szTip, hasGPU ?
L"Looking Glass (IDD) with GPU acceleration" :
L"Looking Glass (IDD) with software rendering");
@@ -271,7 +292,7 @@ void CNotifyWindow::handleGPUNotification(bool hasGPU)
return;
}
if (hasGPU)
if (hasGPU || !notifyNoGPU)
return;
CRegistrySettings settings;