[FL-1908] New animation update scheme (#737)

* Assets: update desktop animation frame rate and cleanup.

* Power: update ViewPort only if changed.

* Gui: tie IconAnimation with View, new update event generation scheme. Desktop: update IconAnimation usage.

Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>

applications/gui/icon_animation.c

@@ -7,26 +7,26 @@ IconAnimation* icon_animation_alloc(const Icon* icon) {
     furi_assert(icon);
     IconAnimation* instance = furi_alloc(sizeof(IconAnimation));
     instance->icon = icon;
+    instance->timer = osTimerNew(icon_animation_timer_callback, osTimerPeriodic, instance, NULL);
     return instance;
 }
 
 void icon_animation_free(IconAnimation* instance) {
     furi_assert(instance);
+    furi_check(osTimerDelete(instance->timer) == osOK);
     free(instance);
 }
 
-const uint8_t* icon_animation_get_data(IconAnimation* instance) {
+void icon_animation_set_update_callback(
+    IconAnimation* instance,
+    IconAnimationCallback callback,
+    void* context) {
     furi_assert(instance);
-    if(instance->tick) {
-        uint32_t now = osKernelGetTickCount();
-        if(now < instance->tick) {
-            instance->tick = now;
-            icon_animation_next_frame(instance);
-        } else if(now - instance->tick > osKernelGetTickFreq() / instance->icon->frame_rate) {
-            instance->tick = now;
-            icon_animation_next_frame(instance);
-        }
-    }
+    instance->callback = callback;
+    instance->callback_context = context;
+}
+
+const uint8_t* icon_animation_get_data(IconAnimation* instance) {
     return instance->icon->frames[instance->frame];
 }
 
@@ -35,6 +35,19 @@ void icon_animation_next_frame(IconAnimation* instance) {
     instance->frame = (instance->frame + 1) % instance->icon->frame_count;
 }
 
+void icon_animation_timer_callback(void* context) {
+    furi_assert(context);
+
+    IconAnimation* instance = context;
+
+    if(!instance->animating) return;
+
+    icon_animation_next_frame(instance);
+    if(instance->callback) {
+        instance->callback(instance, instance->callback_context);
+    }
+}
+
 uint8_t icon_animation_get_width(IconAnimation* instance) {
     furi_assert(instance);
     return instance->icon->width;
@@ -45,33 +58,26 @@ uint8_t icon_animation_get_height(IconAnimation* instance) {
     return instance->icon->height;
 }
 
-bool icon_animation_is_animated(IconAnimation* instance) {
-    furi_assert(instance);
-    return instance->icon->frame_count > 1;
-}
-
-bool icon_animation_is_animating(IconAnimation* instance) {
-    furi_assert(instance);
-    return instance->tick > 0;
-}
-
 void icon_animation_start(IconAnimation* instance) {
     furi_assert(instance);
-    instance->tick = osKernelGetTickCount();
+    if(!instance->animating) {
+        instance->animating = true;
+        furi_check(
+            osTimerStart(instance->timer, (osKernelGetTickFreq() / instance->icon->frame_rate)) ==
+            osOK);
+    }
 }
 
 void icon_animation_stop(IconAnimation* instance) {
     furi_assert(instance);
-    instance->tick = 0;
-    instance->frame = 0;
-}
-
-uint8_t icon_animation_get_current_frame(IconAnimation* instance) {
-    furi_assert(instance);
-    return instance->frame;
+    if(instance->animating) {
+        instance->animating = false;
+        furi_check(osTimerStop(instance->timer) == osOK);
+        instance->frame = 0;
+    }
 }
 
 bool icon_animation_is_last_frame(IconAnimation* instance) {
     furi_assert(instance);
     return instance->icon->frame_count - instance->frame <= 1;
-}
+}