Fences support was added in XSync 3.1, make sure the XServer has support
for this.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Fences support was added later in XSync, make sure we have a version
with fences support or the build would fail.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

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This is not needed and breaks the fence mechanism, hence causing
flickering.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

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Alistair Buxton authored 5 years ago and Olivier Fourdan committed 5 years ago

Bug: 15391

The compositor zoom refresh rate is currently hardcoded at half the
refresh rate, or 30 FPS.

Increase the zoom refresh to the same as the refresh rate, or 60 FPS.

Bug: 15391

Previously, the zoom update was based on XRandr refresh rate ÷ 2, or
30 by default if not available.

But that XRandr code was removed along with the removal of the fake
vblank sync code in favor of XPresent or GLX.

Base the zoom update on half the refresh rate of the primary monitor (if
available from GDK), so we would get the same results as with 4.12.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug 15391

Return the primary monitor refresh rate in Hertz if available from GDK,
or 60 as the default value.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 15392

The texture filter changes based on the zoom value to give best results
when zooming at higher levels.

As we do not unbind/rebind at each repaint anymore, the texture filter
would not be updated, hence the chosen filter is ignored.

Make sure we apply the texture filter when zooming.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

We always query the root window for pointer location, there is no point
in passing it around through the API really.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

And a bit of cleanup.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

This change is incompatible with NVidia closed source driver and
causes a blank screen.

Thanks-to: Philip Müller <philm@manjaro.org>

This reverts commit 97c051b8.

Oddly, `XGetWMProtocols()` return a non-zero value on success, checking
against `Success` would lead to the wrong conclusion.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>
Fixes: 0bf68c53 - "Protect against XErrors"

Places where the window manager uses the client window are all possible
sources of XError because the window may have vanished and the window
manager won't know until it gets the destroy notification from the
Xserver.

As GDK error handler is smart and uses the serial of the requests to
check for errors, if the XError is not trapped in time it will end up in
GDK and cause an abort.

Protect against such a possibility by making sure cases where the XID
of the client or one of its dependent resources is used remains withing
an error trap/push.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

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It's done on unbind.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

If we don't find a FBconfig without caveats, don't use GLX.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

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