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(menu_animation.c) Try to prevent null pointer dereferences

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This commit is contained in:
twinaphex 2019-06-27 20:45:53 +02:00
parent 2ee9b1d98e
commit c1fbf1d43b
1 changed files with 14 additions and 3 deletions
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17
menu/menu_animation.c
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@ -608,9 +608,13 @@ bool menu_animation_update(void)
anim.in_update = true;
anim.pending_deletes = false;
for(i = 0; i < da_count(anim.list); i++)
for (i = 0; i < da_count(anim.list); i++)
{
struct tween *tween = da_getptr(anim.list, i);
if (!tween)
continue;
tween->running_since += delta_time;
*tween->subject = tween->easing(
@ -633,9 +637,11 @@ bool menu_animation_update(void)
if (anim.pending_deletes)
{
for(i = 0; i < da_count(anim.list); i++)
for (i = 0; i < da_count(anim.list); i++)
{
struct tween *tween = da_getptr(anim.list, i);
if (!tween)
continue;
if (tween->deleted)
{
da_delete(anim.list, i);
@ -780,7 +786,7 @@ bool menu_animation_kill_by_tag(menu_animation_ctx_tag *tag)
for (i = 0; i < da_count(anim.list); ++i)
{
struct tween *t = da_getptr(anim.list, i);
if (t->tag != *tag)
if (!t || t->tag != *tag)
continue;
if (anim.in_update)
@ -806,6 +812,8 @@ void menu_animation_kill_by_subject(menu_animation_ctx_subject_t *subject)
for (i = 0; i < da_count(anim.list) && killed < subject->count; ++i)
{
struct tween *t = da_getptr(anim.list, i);
if (!t)
continue;
for (j = 0; j < subject->count; ++j)
{
@ -845,6 +853,9 @@ bool menu_animation_ctl(enum menu_animation_ctl_state state, void *data)
for (i = 0; i < da_count(anim.list); i++)
{
struct tween *t = da_getptr(anim.list, i);
if (!t)
continue;
if (t->subject)
t->subject = NULL;
}