25eca80265
When a window moves from one CRTC to another, present_window_to_crtc_msc
updates window_priv->msc_offset according to the delta between the
current MSC values of the old and new CRTC:
window_priv->msc_offset += new_msc - old_msc;
window_priv->msc_offset is initially 0, so if new_msc < old_msc,
window_priv->msc_offset wraps around and becomes a large number. If the
window_msc parameter passed in is small (in particular if it's 0, such as
is the case when the client just wants to know the current window MSC
value), the returned CRTC MSC value may still be a large number. In that
case, the existing MSC comparisons in pixmap_present weren't working as
intended, resulting in scheduling a wait far into the future when the
target MSC had actually already passed. This would result in the client
(e.g. the Chromium browser) hanging when moving its window between CRTCs.
In order to fix this, introduce msc_is_(equal_or_)after helper functions
which take the wraparound into account for comparing two MSC values.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
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| Xext | ||
| Xi | ||
| composite | ||
| config | ||
| damageext | ||
| dbe | ||
| dix | ||
| doc | ||
| dri3 | ||
| exa | ||
| fb | ||
| glamor | ||
| glx | ||
| hw | ||
| include | ||
| m4 | ||
| man | ||
| mi | ||
| miext | ||
| os | ||
| present | ||
| pseudoramiX | ||
| randr | ||
| record | ||
| render | ||
| test | ||
| xfixes | ||
| xkb | ||
| .dir-locals.el | ||
| .gitignore | ||
| COPYING | ||
| Makefile.am | ||
| README | ||
| autogen.sh | ||
| configure.ac | ||
| devbook.am | ||
| docbook.am | ||
| fix-miregion | ||
| fix-miregion-private | ||
| fix-patch-whitespace | ||
| fix-region | ||
| manpages.am | ||
| xorg-server.m4 | ||
| xorg-server.pc.in | ||
| xserver.ent.in | ||
X Server
The X server accepts requests from client applications to create windows,
which are (normally rectangular) "virtual screens" that the client program
can draw into.
Windows are then composed on the actual screen by the X server
(or by a separate composite manager) as directed by the window manager,
which usually communicates with the user via graphical controls such as buttons
and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the
following article:
http://en.wikipedia.org/wiki/X_server
All questions regarding this software should be directed at the
Xorg mailing list:
http://lists.freedesktop.org/mailman/listinfo/xorg
Please submit bug reports to the Xorg bugzilla:
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
The master development code repository can be found at:
git://anongit.freedesktop.org/git/xorg/xserver
http://cgit.freedesktop.org/xorg/xserver
For patch submission instructions, see:
http://www.x.org/wiki/Development/Documentation/SubmittingPatches
For more information on the git code manager, see:
http://wiki.x.org/wiki/GitPage