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tools/intel-virtual-output: Respond to expose events on target displays

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If the destination screen is exposed (for example screensavers), we need
to redraw. So enable the ExposeEvent on the target and synthesize
damage to any clones on that display in order to trigger a redraw.

Reported-by: Raffael Herzog <herzog@raffael.ch>
References: https://bugs.freedesktop.org/show_bug.cgi?id=93562
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
2016-01-02 21:29:58 +00:00
parent ec92e2584f
commit 082a57e6eb
1 changed files with 30 additions and 2 deletions
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32
tools/virtual.c
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@@ -2037,8 +2037,9 @@ static void clone_damage(struct clone *c, const XRectangle *rec)
if ((v = (int)rec->y + rec->height) > c->damaged.y2)
c->damaged.y2 = v;
DBG(DAMAGE, ("%s-%s damaged: (%d, %d), (%d, %d)\n",
DBG(DAMAGE, ("%s-%s damaged: +(%d,%d)x(%d, %d) -> (%d, %d), (%d, %d)\n",
DisplayString(c->dst.display->dpy), c->dst.name,
rec->x, rec->y, rec->width, rec->height,
c->damaged.x1, c->damaged.y1,
c->damaged.x2, c->damaged.y2));
}
@@ -2382,6 +2383,8 @@ static int add_display(struct context *ctx, Display *dpy)
display->depth = DefaultDepth(dpy, DefaultScreen(dpy));
display->visual = DefaultVisual(dpy, DefaultScreen(dpy));
XSelectInput(dpy, display->root, ExposureMask);
display->has_shm = can_use_shm(dpy, display->root,
&display->shm_event,
&display->shm_opcode,
@@ -3526,7 +3529,32 @@ int main(int argc, char **argv)
XNextEvent(ctx.display[i].dpy, &e);
DBG(POLL, ("%s received event %d\n", DisplayString(ctx.display[i].dpy), e.type));
if (ctx.display[i].rr_active && e.type == ctx.display[i].rr_event + RRNotify) {
if (e.type == Expose) {
XExposeEvent *xe = (XExposeEvent *)&e;
struct clone *clone;
int damaged = 0;
DBG(DAMAGE, ("%s exposed: (%d, %d)x(%d, %d)\n",
DisplayString(ctx.display[i].dpy),
xe->x, xe->y, xe->width, xe->height));
for (clone = ctx.active; clone; clone = clone->active) {
XRectangle r;
if (clone->dst.display != &ctx.display[i])
continue;
r.x = clone->src.x + xe->x;
r.y = clone->src.y + xe->y;
r.width = xe->width;
r.height = xe->height;
clone_damage(clone, &r);
damaged++;
}
if (damaged)
context_enable_timer(&ctx);
} else if (ctx.display[i].rr_active && e.type == ctx.display[i].rr_event + RRNotify) {
XRRNotifyEvent *re = (XRRNotifyEvent *)&e;
DBG(XRR, ("%s received RRNotify, type %d\n", DisplayString(ctx.display[i].dpy), re->subtype));