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Fix a nested ysort invalid memory read again

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Fixes #24755
This commit is contained in:
Bojidar Marinov 2019-01-07 21:17:19 +02:00
parent 0e25c32a77
commit d1406bfeb4
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GPG key ID: 4D546A8F1E091856
1 changed files with 12 additions and 16 deletions
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28
servers/visual/visual_server_canvas.cpp
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@ -68,6 +68,13 @@ void _collect_ysort_children(VisualServerCanvas::Item *p_canvas_item, Transform2
}
}
void _mark_ysort_dirty(VisualServerCanvas::Item *ysort_owner, RID_Owner<VisualServerCanvas::Item> &canvas_item_owner) {
while (ysort_owner && ysort_owner->sort_y) {
ysort_owner->ysort_children_count = -1;
ysort_owner = canvas_item_owner.owns(ysort_owner->parent) ? canvas_item_owner.getornull(ysort_owner->parent) : NULL;
}
}
void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, int p_z, RasterizerCanvas::Item **z_list, RasterizerCanvas::Item **z_last_list, Item *p_canvas_clip, Item *p_material_owner) {
Item *ci = p_canvas_item;
@ -336,11 +343,7 @@ void VisualServerCanvas::canvas_item_set_parent(RID p_item, RID p_parent) {
Item *item_owner = canvas_item_owner.get(canvas_item->parent);
item_owner->child_items.erase(canvas_item);
Item *ysort_owner = item_owner;
while (ysort_owner && ysort_owner->sort_y) {
item_owner->ysort_children_count = -1;
ysort_owner = canvas_item_owner.owns(ysort_owner->parent) ? canvas_item_owner.getornull(ysort_owner->parent) : NULL;
}
_mark_ysort_dirty(item_owner, canvas_item_owner);
}
canvas_item->parent = RID();
@ -360,11 +363,7 @@ void VisualServerCanvas::canvas_item_set_parent(RID p_item, RID p_parent) {
item_owner->child_items.push_back(canvas_item);
item_owner->children_order_dirty = true;
Item *ysort_owner = item_owner;
while (ysort_owner && ysort_owner->sort_y) {
item_owner->ysort_children_count = -1;
ysort_owner = canvas_item_owner.owns(ysort_owner->parent) ? canvas_item_owner.getornull(ysort_owner->parent) : NULL;
}
_mark_ysort_dirty(item_owner, canvas_item_owner);
} else {
@ -873,7 +872,8 @@ void VisualServerCanvas::canvas_item_set_sort_children_by_y(RID p_item, bool p_e
ERR_FAIL_COND(!canvas_item);
canvas_item->sort_y = p_enable;
canvas_item->ysort_children_count = -1;
_mark_ysort_dirty(canvas_item, canvas_item_owner);
}
void VisualServerCanvas::canvas_item_set_z_index(RID p_item, int p_z) {
@ -1351,11 +1351,7 @@ bool VisualServerCanvas::free(RID p_rid) {
Item *item_owner = canvas_item_owner.get(canvas_item->parent);
item_owner->child_items.erase(canvas_item);
Item *ysort_owner = item_owner;
while (ysort_owner && ysort_owner->sort_y) {
item_owner->ysort_children_count = -1;
ysort_owner = canvas_item_owner.owns(ysort_owner->parent) ? canvas_item_owner.getornull(ysort_owner->parent) : NULL;
}
_mark_ysort_dirty(item_owner, canvas_item_owner);
}
}