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sdl: shorten the GUI refresh interval when mouse or keyboard is active

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Signed-off-by: Jindřich Makovička <makovick@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Jindřich Makovička 2016-01-12 20:18:24 +01:00 • committed by Gerd Hoffmann
parent 919e11f373
commit 56bdd4b69a
3 changed files with 46 additions and 0 deletions
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22
ui/sdl.c
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@ -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,