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Workaround for what seems to be a race in Xserver 

There seems to be a race between DamageAdd (what the client uses
to report damage to Xserver) and DamageSubtract (what compton uses
to clear the reported damage, so it can receive new ones). I am not
sure how to confirm this. But this (terrible) workaround seems to
solve this problem.
This commit is contained in:
Yuxuan Shui 2018-09-09 02:25:47 +01:00
parent 72231098d1
commit 967d9f32ea
2 changed files with 3 additions and 7 deletions
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8
src/compton.c
View File

@ -2089,7 +2089,7 @@ paint_all(session_t *ps, XserverRegion region, XserverRegion region_real, win *t
}
static void
repair_win(session_t *ps, win *w) {
repair_win(session_t *ps, win *w, XDamageNotifyEvent *de) {
if (IsViewable != w->a.map_state)
return;
@ -2097,12 +2097,8 @@ repair_win(session_t *ps, win *w) {
if (!w->ever_damaged) {
parts = win_extents(ps, w);
set_ignore_next(ps);
XDamageSubtract(ps->dpy, w->damage, None, None);
} else {
parts = XFixesCreateRegion(ps->dpy, 0, 0);
set_ignore_next(ps);
XDamageSubtract(ps->dpy, w->damage, None, parts);
parts = XFixesCreateRegion(ps->dpy, (XRectangle[]){de->area}, 1);
XFixesTranslateRegion(ps->dpy, parts,
w->a.x + w->a.border_width,
w->a.y + w->a.border_width);

2
src/win.c
View File

@ -878,7 +878,7 @@ bool add_win(session_t *ps, Window id, Window prev) {
// Create Damage for window
set_ignore_next(ps);
new->damage = XDamageCreate(ps->dpy, id, XDamageReportNonEmpty);
new->damage = XDamageCreate(ps->dpy, id, XDamageReportRawRectangles);
}
calc_win_size(ps, new);