Older epoxy versions may not provide all GL functions, causing the build
to fail.

Make sure to check for function availability.

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

Peter de Ridder authored 12 years ago and Olivier Fourdan committed 4 years ago

Note: This cannot work with CSD (client-side decoration), as double-
click is handled by the client and not by the window manager with CSD.

Closes: #1

DarkTrick authored 4 years ago and Olivier Fourdan committed 4 years ago

Closes: #451 (Disable initial sorting of keyboard shortcuts)


Signed-off-by: DarkTrick <notebook22312@gmail.com>

174 translated messages.

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XFixesSetPictureClipRegion() with the region from the client window can
cause a RenderBadPicture error.

Make sure to include it within the XError trap.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>
#460

When using GLX, xfwm4 relies on glXSwapBuffers() for vblank. Normally,
glXSwapBuffers() is non blocking, unless the previous call is still
pending.

That means that if xfwm4 queues glXSwapBuffers() faster than the refresh
rate, the following calls will be blocking, stalling the window manager
completely, which is bad for obvious reasons.

To avoid queuing a new glXSwapBuffers() before the previous one is
complete, use a GL sync mechanism.

Typically, we insert a GL Sync object just after the glXSwapBuffers()
command, and check if the GL Sync is triggered before redrawing again,
just like we do with Xpresent.

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

Just a small code rework, no functional change. This is a preparation
work for GL Sync which will do something similar for the GLX backend.

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

Debug mode means compiling with "-Werror", clean up various leftovers
breaking the build in debug.

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

The Xpresent header check for PRESENT_FUTURE_VERSION but it's not set
anywhere.

Just set it to avoid a compilation issue with WError.

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

For debugging purpose, log the time spent waiting on the fence sync and
the redrawing time, including the time spent in glXSwapBuffers().

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

Just a small code rework, no functional change.

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

Just a small code rework, no functional change.

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

If either the GLX_MESA_swap_control or the GLX_EXT_swap_control
extension is available, use it to set the swap interval to 1.

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

When using multiple buffers, no need to set all possible buffers, just
set the right number of buffers actually used per vblank backend.

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

If GLX was configured (at build time) to use multiple buffers, we would
still use a single GLX drawable.

Assign a GLX drawable per buffer instead - Note that this doesn't make
any difference in the default case, as GLX uses a single buffer anyway.

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

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We would not allow transients for group to be minimized as long as a
parent is still visible.

Be more lenient with those, allow those to be minimized independently
of their parents.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>
Closes: #349

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

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

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

The window menu entries would check for valid transients or modal dialog
window to enable or disable the above/below entries.

Yet the actual above/below function would simply check for any transient
or modal dialog, hence denying the request for fake dialogs without an
actual parent window.

Fix the logic to remain consistent, and allows fake dialogs to be placed
above or below other windows.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>
Closes:#458

When an offscreen window is damaged, there is no need to repaint any
screen region.

Limit damage to the screen region only.

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

When using no vblank, with a single buffer, no need to render the entire
screen.

Optimize rendering by limiting the repaint to the damage region.

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

When using Xpresent, the compositor maintains multiple pixmap buffers
and therefore needs to accumulate damages for those multiple buffers.

However, when using GLX or no vblank method at all, there is only one
buffer pixmap and there is no need to accumulate damage between buffers.

Currently, the compositor would accumulate damage indefinitely when
using GLX or no vblank, hence damaging way more than actually necessary.

Fix this by accumulating damages only when there is more than one
buffer.

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

By definition, the content of the back buffer is undefined, therefore we
need to copy the entire content on flip with GLX.

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

XSync can fail, handle the XError gracefully.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>
Closes: #448

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