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/**
* @file lv_anim_timeline.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_anim_private.h"
#include "lv_assert.h"
#include "lv_anim_timeline.h"
#include "../stdlib/lv_mem.h"
#include "../stdlib/lv_string.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/*Data of anim_timeline_dsc*/
typedef struct {
lv_anim_t anim;
uint32_t start_time;
uint8_t is_started : 1;
uint8_t is_completed : 1;
} lv_anim_timeline_dsc_t;
/*Data of anim_timeline*/
struct lv_anim_timeline_t {
lv_anim_timeline_dsc_t * anim_dsc; /**< Dynamically allocated anim dsc array*/
uint32_t anim_dsc_cnt; /**< The length of anim dsc array*/
uint32_t act_time; /**< Current time of the animation*/
bool reverse; /**< Reverse playback*/
};
/**********************
* STATIC PROTOTYPES
**********************/
static void anim_timeline_exec_cb(void * var, int32_t v);
static void anim_timeline_set_act_time(lv_anim_timeline_t * at, uint32_t act_time);
static int32_t anim_timeline_path_cb(const lv_anim_t * a);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_anim_timeline_t * lv_anim_timeline_create(void)
{
lv_anim_timeline_t * at = lv_malloc_zeroed(sizeof(lv_anim_timeline_t));
LV_ASSERT_MALLOC(at);
return at;
}
void lv_anim_timeline_delete(lv_anim_timeline_t * at)
{
LV_ASSERT_NULL(at);
lv_anim_timeline_pause(at);
lv_free(at->anim_dsc);
lv_free(at);
}
void lv_anim_timeline_add(lv_anim_timeline_t * at, uint32_t start_time, const lv_anim_t * a)
{
LV_ASSERT_NULL(at);
at->anim_dsc_cnt++;
at->anim_dsc = lv_realloc(at->anim_dsc, at->anim_dsc_cnt * sizeof(lv_anim_timeline_dsc_t));
LV_ASSERT_MALLOC(at->anim_dsc);
at->anim_dsc[at->anim_dsc_cnt - 1].anim = *a;
at->anim_dsc[at->anim_dsc_cnt - 1].start_time = start_time;
}
uint32_t lv_anim_timeline_start(lv_anim_timeline_t * at)
{
LV_ASSERT_NULL(at);
uint32_t playtime = lv_anim_timeline_get_playtime(at);
uint32_t start = at->act_time;
uint32_t end = at->reverse ? 0 : playtime;
uint32_t duration = end > start ? end - start : start - end;
if((!at->reverse && at->act_time == 0) || (at->reverse && at->act_time == playtime)) {
for(uint32_t i = 0; i < at->anim_dsc_cnt; i++) {
at->anim_dsc[i].is_started = 0;
at->anim_dsc[i].is_completed = 0;
}
}
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, at);
lv_anim_set_exec_cb(&a, anim_timeline_exec_cb);
lv_anim_set_values(&a, start, end);
lv_anim_set_time(&a, duration);
lv_anim_set_path_cb(&a, anim_timeline_path_cb);
lv_anim_start(&a);
return playtime;
}
void lv_anim_timeline_pause(lv_anim_timeline_t * at)
{
LV_ASSERT_NULL(at);
lv_anim_delete(at, anim_timeline_exec_cb);
}
void lv_anim_timeline_set_reverse(lv_anim_timeline_t * at, bool reverse)
{
LV_ASSERT_NULL(at);
at->reverse = reverse;
}
void lv_anim_timeline_set_progress(lv_anim_timeline_t * at, uint16_t progress)
{
LV_ASSERT_NULL(at);
uint32_t playtime = lv_anim_timeline_get_playtime(at);
uint32_t act_time = lv_map(progress, 0, LV_ANIM_TIMELINE_PROGRESS_MAX, 0, playtime);
anim_timeline_set_act_time(at, act_time);
}
uint32_t lv_anim_timeline_get_playtime(lv_anim_timeline_t * at)
{
LV_ASSERT_NULL(at);
uint32_t playtime = 0;
for(uint32_t i = 0; i < at->anim_dsc_cnt; i++) {
uint32_t end = lv_anim_get_playtime(&at->anim_dsc[i].anim);
if(end == LV_ANIM_PLAYTIME_INFINITE)
return end;
end += at->anim_dsc[i].start_time;
if(end > playtime) {
playtime = end;
}
}
return playtime;
}
bool lv_anim_timeline_get_reverse(lv_anim_timeline_t * at)
{
LV_ASSERT_NULL(at);
return at->reverse;
}
uint16_t lv_anim_timeline_get_progress(lv_anim_timeline_t * at)
{
LV_ASSERT_NULL(at);
uint32_t playtime = lv_anim_timeline_get_playtime(at);
return lv_map(at->act_time, 0, playtime, 0, LV_ANIM_TIMELINE_PROGRESS_MAX);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void anim_timeline_set_act_time(lv_anim_timeline_t * at, uint32_t act_time)
{
at->act_time = act_time;
bool anim_timeline_is_started = (lv_anim_get(at, anim_timeline_exec_cb) != NULL);
for(uint32_t i = 0; i < at->anim_dsc_cnt; i++) {
lv_anim_timeline_dsc_t * anim_dsc = &(at->anim_dsc[i]);
lv_anim_t * a = &(anim_dsc->anim);
if(a->exec_cb == NULL && a->custom_exec_cb == NULL) {
continue;
}
uint32_t start_time = anim_dsc->start_time;
int32_t value = 0;
if(act_time < start_time && a->early_apply) {
if(anim_timeline_is_started) {
if(at->reverse) {
if(!anim_dsc->is_started && a->start_cb) a->start_cb(a);
anim_dsc->is_started = 1;
}
else {
anim_dsc->is_started = 0;
}
}
value = a->start_value;
if(a->exec_cb) a->exec_cb(a->var, value);
if(a->custom_exec_cb) a->custom_exec_cb(a, value);
if(anim_timeline_is_started) {
if(at->reverse) {
if(!anim_dsc->is_completed && a->completed_cb) a->completed_cb(a);
anim_dsc->is_completed = 1;
}
else {
anim_dsc->is_completed = 0;
}
}
}
else if(act_time >= start_time && act_time <= (start_time + a->duration)) {
if(anim_timeline_is_started) {
if(!anim_dsc->is_started && a->start_cb) a->start_cb(a);
anim_dsc->is_started = 1;
}
a->act_time = act_time - start_time;
value = a->path_cb(a);
if(a->exec_cb) a->exec_cb(a->var, value);
if(a->custom_exec_cb) a->custom_exec_cb(a, value);
if(anim_timeline_is_started) {
if(at->reverse) {
if(act_time == start_time) {
if(!anim_dsc->is_completed && a->completed_cb) a->completed_cb(a);
anim_dsc->is_completed = 1;
}
else {
anim_dsc->is_completed = 0;
}
}
else {
if(act_time == (start_time + a->duration)) {
if(!anim_dsc->is_completed && a->completed_cb) a->completed_cb(a);
anim_dsc->is_completed = 1;
}
else {
anim_dsc->is_completed = 0;
}
}
}
}
else if(act_time > start_time + a->duration) {
if(anim_timeline_is_started) {
if(at->reverse) {
anim_dsc->is_started = 0;
}
else {
if(!anim_dsc->is_started && a->start_cb) a->start_cb(a);
anim_dsc->is_started = 1;
}
}
value = a->end_value;
if(a->exec_cb) a->exec_cb(a->var, value);
if(a->custom_exec_cb) a->custom_exec_cb(a, value);
if(anim_timeline_is_started) {
if(at->reverse) {
anim_dsc->is_completed = 0;
}
else {
if(!anim_dsc->is_completed && a->completed_cb) a->completed_cb(a);
anim_dsc->is_completed = 1;
}
}
}
}
}
static int32_t anim_timeline_path_cb(const lv_anim_t * a)
{
/* Directly map original timestamps to avoid loss of accuracy */
return lv_map(a->act_time, 0, a->duration, a->start_value, a->end_value);
}
static void anim_timeline_exec_cb(void * var, int32_t v)
{
lv_anim_timeline_t * at = var;
anim_timeline_set_act_time(at, v);
}
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