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ui/gtk: Update refresh interval after widget is realized 

Nikola reported on Windows when gd_vc_gfx_init() is called, the
window is not yet realized, so we run gd_refresh_rate_millihz(NULL)
which returns 0 milli-Hertz.
When a Widget is realized, it fires a 'realized' event. We already
have the gd_draw_event() handler registered for this even, so simply
move the gd_refresh_rate_millihz() there. When the event fires, the
window is known to exist.
This completes commit c4c00922cc original intention.

Reported-by: Nikola Pavlica <pavlica.nikola@gmail.com>
Tested-by: Nikola Pavlica <pavlica.nikola@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200817172331.598255-1-philmd@redhat.com
Suggested-by: Nikola Pavlica <pavlica.nikola@gmail.com>
Tested-by: Nikola Pavlica <pavlica.nikola@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2020-08-17 19:23:31 +02:00 committed by Gerd Hoffmann
parent 5b57a87e4e
commit dc26435edb
1 changed files with 26 additions and 26 deletions
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52
ui/gtk.c
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@ -744,6 +744,25 @@ static void gd_resize_event(GtkGLArea *area,
#endif
/*
* If available, return the refresh rate of the display in milli-Hertz,
* else return 0.
*/
static int gd_refresh_rate_millihz(GtkWidget *window)
{
#ifdef GDK_VERSION_3_22
GdkWindow *win = gtk_widget_get_window(window);
if (win) {
GdkDisplay *dpy = gtk_widget_get_display(window);
GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win);
return gdk_monitor_get_refresh_rate(monitor);
}
#endif
return 0;
}
static gboolean gd_draw_event(GtkWidget *widget, cairo_t *cr, void *opaque)
{
VirtualConsole *vc = opaque;
@ -751,6 +770,7 @@ static gboolean gd_draw_event(GtkWidget *widget, cairo_t *cr, void *opaque)
int mx, my;
int ww, wh;
int fbw, fbh;
int refresh_rate_millihz;
#if defined(CONFIG_OPENGL)
if (vc->gfx.gls) {
@ -771,6 +791,12 @@ static gboolean gd_draw_event(GtkWidget *widget, cairo_t *cr, void *opaque)
return FALSE;
}
refresh_rate_millihz = gd_refresh_rate_millihz(vc->window ?
vc->window : s->window);
if (refresh_rate_millihz) {
vc->gfx.dcl.update_interval = MILLISEC_PER_SEC / refresh_rate_millihz;
}
fbw = surface_width(vc->gfx.ds);
fbh = surface_height(vc->gfx.ds);
@ -1949,31 +1975,11 @@ static GtkWidget *gd_create_menu_machine(GtkDisplayState *s)
return machine_menu;
}
/*
* If available, return the refresh rate of the display in milli-Hertz,
* else return 0.
*/
static int gd_refresh_rate_millihz(GtkWidget *window)
{
#ifdef GDK_VERSION_3_22
GdkWindow *win = gtk_widget_get_window(window);
if (win) {
GdkDisplay *dpy = gtk_widget_get_display(window);
GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win);
return gdk_monitor_get_refresh_rate(monitor);
}
#endif
return 0;
}
static GSList *gd_vc_gfx_init(GtkDisplayState *s, VirtualConsole *vc,
QemuConsole *con, int idx,
GSList *group, GtkWidget *view_menu)
{
bool zoom_to_fit = false;
int refresh_rate_millihz;
vc->label = qemu_console_get_label(con);
vc->s = s;
@ -2031,12 +2037,6 @@ static GSList *gd_vc_gfx_init(GtkDisplayState *s, VirtualConsole *vc,
vc->gfx.kbd = qkbd_state_init(con);
vc->gfx.dcl.con = con;
refresh_rate_millihz = gd_refresh_rate_millihz(vc->window ?
vc->window : s->window);
if (refresh_rate_millihz) {
vc->gfx.dcl.update_interval = MILLISEC_PER_SEC / refresh_rate_millihz;
}
register_displaychangelistener(&vc->gfx.dcl);
gd_connect_vc_gfx_signals(vc);