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ui: check hw requirements during DCL registration 

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210204105232.834642-14-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Marc-André Lureau 2021-02-04 14:52:25 +04:00 committed by Gerd Hoffmann
parent d0e137bc9a
commit 5983fdf1dc
1 changed files with 30 additions and 0 deletions
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30
ui/console.c
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@ -1476,12 +1476,37 @@ static bool displaychangelistener_has_dmabuf(DisplayChangeListener *dcl)
return false;
}
static bool dpy_compatible_with(QemuConsole *con,
DisplayChangeListener *dcl, Error **errp)
{
ERRP_GUARD();
int flags;
flags = con->hw_ops->get_flags ? con->hw_ops->get_flags(con->hw) : 0;
if (flags & GRAPHIC_FLAGS_GL &&
!console_has_gl(con)) {
error_setg(errp, "The console requires a GL context.");
return false;
}
if (flags & GRAPHIC_FLAGS_DMABUF &&
!displaychangelistener_has_dmabuf(dcl)) {
error_setg(errp, "The console requires display DMABUF support.");
return false;
}
return true;
}
void register_displaychangelistener(DisplayChangeListener *dcl)
{
static const char nodev[] =
"This VM has no graphic display device.";
static DisplaySurface *dummy;
QemuConsole *con;
Error *err = NULL;
assert(!dcl->ds);
@ -1496,6 +1521,11 @@ void register_displaychangelistener(DisplayChangeListener *dcl)
dcl->con->gl = dcl;
}
if (dcl->con && !dpy_compatible_with(dcl->con, dcl, &err)) {
error_report_err(err);
exit(1);
}
trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
dcl->ds = get_alloc_displaystate();
QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);