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authorJindřich Makovička <makovick@gmail.com>2016-01-12 20:18:24 +0100
committerGerd Hoffmann <kraxel@redhat.com>2016-02-02 14:05:07 +0100
commit56bdd4b69aa10bec274b1e812685bcf44dcb0c72 (patch)
treefe0f5c5d53d3e1c126a9f830bf68a60396614e8c /ui/sdl.c
parent919e11f3735c524e23d049512d3306ea1cc63fba (diff)
sdl: shorten the GUI refresh interval when mouse or keyboard is active
Signed-off-by: Jindřich Makovička <makovick@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'ui/sdl.c')
-rw-r--r--ui/sdl.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/ui/sdl.c b/ui/sdl.c
index c837436096..f215fe140d 100644
--- a/ui/sdl.c
+++ b/ui/sdl.c
@@ -60,6 +60,11 @@ static SDL_Cursor *guest_sprite = NULL;
static SDL_PixelFormat host_format;
static int scaling_active = 0;
static Notifier mouse_mode_notifier;
+static int idle_counter;
+
+#define SDL_REFRESH_INTERVAL_BUSY 10
+#define SDL_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \
+ / SDL_REFRESH_INTERVAL_BUSY + 1)
#if 0
#define DEBUG_SDL
@@ -802,6 +807,7 @@ static void handle_activation(SDL_Event *ev)
static void sdl_refresh(DisplayChangeListener *dcl)
{
SDL_Event ev1, *ev = &ev1;
+ int idle = 1;
if (last_vm_running != runstate_is_running()) {
last_vm_running = runstate_is_running();
@@ -817,9 +823,11 @@ static void sdl_refresh(DisplayChangeListener *dcl)
sdl_update(dcl, 0, 0, real_screen->w, real_screen->h);
break;
case SDL_KEYDOWN:
+ idle = 0;
handle_keydown(ev);
break;
case SDL_KEYUP:
+ idle = 0;
handle_keyup(ev);
break;
case SDL_QUIT:
@@ -829,10 +837,12 @@ static void sdl_refresh(DisplayChangeListener *dcl)
}
break;
case SDL_MOUSEMOTION:
+ idle = 0;
handle_mousemotion(ev);
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
+ idle = 0;
handle_mousebutton(ev);
break;
case SDL_ACTIVEEVENT:
@@ -847,6 +857,18 @@ static void sdl_refresh(DisplayChangeListener *dcl)
break;
}
}
+
+ if (idle) {
+ if (idle_counter < SDL_MAX_IDLE_COUNT) {
+ idle_counter++;
+ if (idle_counter >= SDL_MAX_IDLE_COUNT) {
+ dcl->update_interval = GUI_REFRESH_INTERVAL_DEFAULT;
+ }
+ }
+ } else {
+ idle_counter = 0;
+ dcl->update_interval = SDL_REFRESH_INTERVAL_BUSY;
+ }
}
static void sdl_mouse_warp(DisplayChangeListener *dcl,