anigif low usage if no gifs

src/sdl-instead/game.c

@@ -551,7 +551,8 @@ static void anigif_do(void *data)
 int counter_fn(int interval, void *p)
 {
 	timer_counter ++;
-	push_user_event(anigif_do, NULL);
+	if (gfx_is_drawn_gifs())
+		push_user_event(anigif_do, NULL);
 	return interval;
 }
 

src/sdl-instead/graphics.c

@@ -162,7 +162,6 @@ static struct {
 	{"yellowgreen", 0x9acd32},
 	{NULL, 0x0},
 };
-
 int gfx_parse_color (
 	const char *spec,
 	color_t *def)
@@ -247,6 +246,8 @@ typedef struct _anigif_t *anigif_t;
 
 static anigif_t anim_gifs = NULL;
 
+static int anigif_drawn_nr = 0;
+
 static anigif_t anigif_find(anigif_t g)
 {
 	anigif_t p;
@@ -373,6 +374,8 @@ void gfx_free_image(img_t p)
 	if (!p)
 		return;
 	if ((ag = is_anigif(p))) {
+		if (ag->drawn)
+			anigif_drawn_nr --;
 		anigif_del(ag);
 		anigif_free(ag);
 		return;
@@ -710,6 +713,8 @@ void gfx_draw(img_t p, int x, int y)
 		ag->clip = clip;
 		ag->x = x;
 		ag->y = y;
+		if (!ag->drawn)
+			anigif_drawn_nr ++;
 		ag->drawn = 1;
 		ag->active = 1;
 		gfx_free_image(ag->bg);
@@ -733,9 +738,11 @@ void gfx_dispose_gif(img_t p)
 {
 	anigif_t ag;
 	ag = is_anigif(p);
-	if (ag)
+	if (ag) {
+		if (ag->drawn)
+			anigif_drawn_nr --;
 		ag->drawn = 0;
-
+	}
 }
 
 void gfx_start_gif(img_t p)
@@ -785,6 +792,11 @@ int gfx_frame_gif(img_t img)
 	return 1;
 }
 
+int gfx_is_drawn_gifs(void)
+{
+	return anigif_drawn_nr;
+}
+
 void gfx_update_gif(img_t img)
 {
 	anigif_t ag;

src/sdl-instead/graphics.h

@@ -138,6 +138,7 @@ extern layout_t	xref_layout(xref_t x);
 typedef void 	(*update_fn)(int x, int y, int w, int h);
 extern void	xref_update(xref_t xref, int x, int y, clear_fn clear, update_fn update);
 extern void 	gfx_start_gif(img_t img);
+extern int 	gfx_is_drawn_gifs(void);
 extern void	gfx_stop_gif(img_t img);
 extern int	gfx_frame_gif(img_t img);
 extern void	gfx_del_timer(gtimer_t han);

src/sdl-instead/input.c

@@ -66,7 +66,7 @@ int input(struct inp_event *inp, int wait)
 					SDL_ShowCursor(SDL_ENABLE);
 			}
 		}
-		return 0; //AGAIN;
+		return 0;
 	case SDL_USEREVENT: {
 		void (*p) (void*) = event.user.data1;
 		p(event.user.data2);