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(xmb) Defragment and shrink tween list after updates

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This commit is contained in:
Higor Eurípedes 2017-08-08 22:37:37 -03:00
parent 8d358899df
commit 63c0cae326
1 changed files with 30 additions and 4 deletions
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34
menu/menu_animation.c
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@ -462,6 +462,32 @@ bool menu_animation_push(menu_animation_ctx_entry_t *entry)
return true;
}
static int menu_animation_defrag_cmp(const void *a, const void *b)
{
const struct tween *ta = (const struct tween *)a;
const struct tween *tb = (const struct tween *)b;
return tb->alive - ta->alive;
}
/* defragments and shrinks the tween list when possible */
static void menu_animation_defrag()
{
size_t i;
qsort(anim.list, anim.size, sizeof(anim.list[0]), menu_animation_defrag_cmp);
for (i = anim.size-1; i > 0; i--)
{
if (anim.list[i].alive)
break;
anim.size--;
}
anim.first_dead = anim.size;
}
bool menu_animation_update(float delta_time)
{
unsigned i;
@ -486,9 +512,6 @@ bool menu_animation_update(float delta_time)
*tween->subject = tween->target_value;
tween->alive = false;
if (i < anim.first_dead)
anim.first_dead = i;
if (tween->cb)
tween->cb();
}
@ -497,13 +520,16 @@ bool menu_animation_update(float delta_time)
active_tweens += 1;
}
if (!active_tweens)
if (active_tweens)
menu_animation_defrag();
else
{
anim.size = 0;
anim.first_dead = 0;
return false;
}
animation_is_active = true;
return true;