Commit cf1ecc82 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

console: delayed ui_info guest notification 



So we don't flood the guest with display change notifications
while the user resizes the window.

Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 874e9aee

ui/console.c

+19 −3
Original line number Diff line number Diff line
@@ -126,6 +126,7 @@ struct QemuConsole { 
    Object *device;

    uint32_t head;

    QemuUIInfo ui_info;

    QEMUTimer *ui_timer;

    const GraphicHwOps *hw_ops;

    void *hw;
@@ -1383,16 +1384,30 @@ void unregister_displaychangelistener(DisplayChangeListener *dcl) 
    gui_setup_refresh(ds);

}



static void dpy_set_ui_info_timer(void *opaque)

{

    QemuConsole *con = opaque;



    con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);

}



int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info)

{

    assert(con != NULL);

    con->ui_info = *info;

    if (con->hw_ops->ui_info) {

        return con->hw_ops->ui_info(con->hw, con->head, info);

    }

    if (!con->hw_ops->ui_info) {

        return -1;

    }



    /*

     * Typically we get a flood of these as the user resizes the window.

     * Wait until the dust has settled (one second without updates), then

     * go notify the guest.

     */

    timer_mod(con->ui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000);

    return 0;

}



void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)

{

    DisplayState *s = con->ds;
@@ -1724,6 +1739,7 @@ QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head, 
    ds = get_alloc_displaystate();

    trace_console_gfx_new();

    s = new_console(ds, GRAPHIC_CONSOLE, head);

    s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, dpy_set_ui_info_timer, s);

    graphic_console_set_hwops(s, hw_ops, opaque);

    if (dev) {

        object_property_set_link(OBJECT(s), OBJECT(dev), "device",