/**
* Create a new lv_task
* @param task a function which is the task itself
* @param period call period in ms unit
* @param prio priority of the task (LV_TASK_PRIO_OFF means the task is stopped)
* @param param free parameter
* @return pointer to the new task
*/
lv_task_t* lv_task_create(void (*task) (void *), uint32_t period, lv_task_prio_t prio, void * param)
{
lv_task_t* new_lv_task;
new_lv_task = lv_ll_ins_head(&lv_task_ll);
lv_mem_assert(new_lv_task);
new_lv_task->period = period;
new_lv_task->task = task;
new_lv_task->prio = prio;
new_lv_task->param = param;
new_lv_task->once = 0;
new_lv_task->last_run = lv_tick_get();
return new_lv_task;
}
last_task_run = lv_tick_get();
lv_task_create(anim_task, LV_REFR_PERIOD, LV_TASK_PRIO_MID, NULL);
}
/**
* Create an animation
* @param anim_p an initialized 'anim_t' variable. Not required after call.
*/
void lv_anim_create(lv_anim_t * anim_p)
{
LV_LOG_TRACE("animation create started")
/* Do not let two animations for the same 'var' with the same 'fp'*/
if(anim_p->fp != NULL) lv_anim_del(anim_p->var, anim_p->fp); /*fp == NULL would delete all animations of var*/
/*Add the new animation to the animation linked list*/
lv_anim_t * new_anim = lv_ll_ins_head(&LV_GC_ROOT(_lv_anim_ll));
lv_mem_assert(new_anim);
if(new_anim == NULL) return;
/*Initialize the animation descriptor*/
anim_p->playback_now = 0;
memcpy(new_anim, anim_p, sizeof(lv_anim_t));
/*Set the start value*/
if(new_anim->fp != NULL) new_anim->fp(new_anim->var, new_anim->start);
/* Creating an animation changed the linked list.
* It's important if it happens in a ready callback. (see `anim_task`)*/
anim_list_changed = true;
LV_LOG_TRACE("animation created")
