Upgrade to SDL2.0.2 (8393682d9d96d1516831a397290cb34ceb82129f).

libs/SDL2/src/video/SDL_video.c

@@ -421,8 +421,10 @@ int
 SDL_VideoInit(const char *driver_name)
 {
     SDL_VideoDevice *video;
+    const char *hint;
     int index;
     int i;
+    SDL_bool allow_screensaver;
 
     /* Check to make sure we don't overwrite '_this' */
     if (_this != NULL) {
@@ -430,7 +432,7 @@ SDL_VideoInit(const char *driver_name)
     }
 
 #if !SDL_TIMERS_DISABLED
-    SDL_InitTicks();
+    SDL_TicksInit();
 #endif
 
     /* Start the event loop */
@@ -504,6 +506,22 @@ SDL_VideoInit(const char *driver_name)
         _this->DestroyWindowFramebuffer = SDL_DestroyWindowTexture;
     }
 
+    /* Disable the screen saver by default. This is a change from <= 2.0.1,
+       but most things using SDL are games or media players; you wouldn't
+       want a screensaver to trigger if you're playing exclusively with a
+       joystick, or passively watching a movie. Things that use SDL but
+       function more like a normal desktop app should explicitly reenable the
+       screensaver. */
+    hint = SDL_GetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER);
+    if (hint) {
+        allow_screensaver = SDL_atoi(hint) ? SDL_TRUE : SDL_FALSE;
+    } else {
+        allow_screensaver = SDL_FALSE;
+    }
+    if (!allow_screensaver) {
+        SDL_DisableScreenSaver();
+    }
+
     /* If we don't use a screen keyboard, turn on text input by default,
        otherwise programs that expect to get text events without enabling
        UNICODE input won't get any events.