ui: gtk: Fix a runtime warning on vte >= 0.37

[mirror_qemu.git] / ui / sdl.c

diff --git a/ui/sdl.c b/ui/sdl.c
index f4aa0f2567bf2c0a396cecd9c0cdcc6d523c2643..d8cf5bcf740317a5675bbb4b09fe463af3e0c27c 100644 (file)
--- a/ui/sdl.c
+++ b/ui/sdl.c
@@ -25,10 +25,12 @@
 /* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
 #undef WIN32_LEAN_AND_MEAN
 
+#include "qemu/osdep.h"
 #include <SDL.h>
 #include <SDL_syswm.h>
 
 #include "qemu-common.h"
+#include "qemu/cutils.h"
 #include "ui/console.h"
 #include "ui/input.h"
 #include "sysemu/sysemu.h"
@@ -60,6 +62,11 @@ 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 +809,7 @@ 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 +825,11 @@ 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 +839,12 @@ 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 +859,18 @@ 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,