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kwin: Don't hold an X server grab while painting the screen 

According to Pierre-Loup Griffais (Plagman on IRC) this is causing
choppy VDPAU video playback when compositing is enabled.

Removing these calls doesn't seem to cause any regressions, and the
commit that added them doesn't give a reason.  So let's just get rid
of them for now.

(cherry picked from commit 20e6349843d9bb838673a301330d7dc5d08401a5)
icc-effect-5.14.5
Fredrik Höglund 2012-09-12 23:00:15 +02:00
parent e262d4fde6
commit e4d970ef5f
2 changed files with 1 additions and 4 deletions
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3
scene_opengl_egl.cpp
View File

@ -200,14 +200,13 @@ int SceneOpenGL::paint(QRegion damage, ToplevelList toplevels)
stacking_order.append(windows[ c ]);
}
grabXServer();
XSync(display(), false);
int mask = 0;
paintScreen(&mask, &damage); // call generic implementation
m_lastMask = mask;
m_lastDamage = damage;
glFlush();
ungrabXServer();
if (m_overlayWindow->window()) // show the window only after the first pass, since
m_overlayWindow->show(); // that pass may take long

2
scene_opengl_glx.cpp
View File

@ -468,7 +468,6 @@ int SceneOpenGL::paint(QRegion damage, ToplevelList toplevels)
stacking_order.append(windows[ c ]);
}
grabXServer();
glXWaitX();
if (m_resetModelViewProjectionMatrix) {
// reset model view projection matrix if required
@ -487,7 +486,6 @@ int SceneOpenGL::paint(QRegion damage, ToplevelList toplevels)
glFlush();
ungrabXServer();
if (m_overlayWindow->window()) // show the window only after the first pass,
m_overlayWindow->show(); // since that pass may take long