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d3d12fence: Check completed value before waiting

Browse source 
If currently completed fence value is larger than target value,
skip waiting.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5356>
This commit is contained in:
Seungha Yang 2023-09-19 18:57:53 +09:00 committed by GStreamer Marge Bot
parent 5b252a1511
commit 44b02e58fc
1 changed files with 21 additions and 16 deletions
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33
subprojects/gst-plugins-bad/sys/d3d12/gstd3d12fence.cpp
View file

@ -51,7 +51,6 @@ struct _GstD3D12FencePrivate
HANDLE event_handle;
std::mutex lock;
guint64 value = 0;
gboolean can_wait = FALSE;
};
/* *INDENT-ON* */
@ -108,21 +107,15 @@ gst_d3d12_fence_set_event_on_completion_value (GstD3D12Fence * fence,
guint64 value)
{
GstD3D12FencePrivate *priv;
HRESULT hr;
g_return_val_if_fail (fence != nullptr, FALSE);
priv = fence->priv;
std::lock_guard < std::mutex > lk (priv->lock);
hr = priv->fence->SetEventOnCompletion (value, priv->event_handle);
if (!gst_d3d12_result (hr, fence->device)) {
GST_ERROR_OBJECT (fence->device, "Failed to set completion event");
return FALSE;
}
auto current = priv->fence->GetCompletedValue ();
if (value > current)
priv->value = value;
priv->can_wait = TRUE;
return TRUE;
}
@ -143,15 +136,27 @@ gst_d3d12_fence_wait_for (GstD3D12Fence * fence, guint timeout_ms)
GstD3D12FencePrivate *priv = fence->priv;
std::lock_guard < std::mutex > lk (priv->lock);
if (!priv->can_wait)
if (!priv->value)
return;
GST_TRACE ("Waiting for fence to be signalled with value %" G_GUINT64_FORMAT,
priv->value);
auto current = priv->fence->GetCompletedValue ();
if (current < priv->value) {
HRESULT hr;
GST_TRACE ("Waiting for fence to be signalled with value %" G_GUINT64_FORMAT
", current: %" G_GUINT64_FORMAT, priv->value, current);
hr = priv->fence->SetEventOnCompletion (priv->value, priv->event_handle);
if (!gst_d3d12_result (hr, fence->device)) {
GST_ERROR_OBJECT (fence->device, "Failed to set completion event");
return;
}
WaitForSingleObjectEx (priv->event_handle, timeout_ms, FALSE);
GST_TRACE ("Signalled with value %" G_GUINT64_FORMAT, priv->value);
priv->can_wait = FALSE;
} else {
GST_TRACE ("target %" G_GUINT64_FORMAT " <= target: %" G_GUINT64_FORMAT,
priv->value, current);
}
}
void