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Renderer Viewport correct sizeof usage.

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The current usage.

In viewport_find_from_screen_attachment
- Allocates a list of pointers, eg sizeof(RID*) * ridcount.

We need fill that buffer
viewport_owner.fill_owned_buffer(rids);
...
 p_rid_buffer[idx] = _make_from_id((validator << 32) | i);

_make_from_id returns an RID object, not a pointer.

Since there isn't a copy constructor, a bitwise copy of the object occurs.

This issue will only present itself under 32bit builds.
sizeof(RID)  : 8
sizeof(RID*) : 4

whereas 64bit builds they are both 8.
This commit is contained in:
Alistair Leslie-Hughes 2023-11-16 06:43:33 +11:00
parent 56a2b143a2
commit 367079ffee
1 changed files with 1 additions and 1 deletions
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2
servers/rendering/renderer_viewport.cpp
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@ -1387,7 +1387,7 @@ void RendererViewport::viewport_set_sdf_oversize_and_scale(RID p_viewport, RS::V
RID RendererViewport::viewport_find_from_screen_attachment(DisplayServer::WindowID p_id) const {
RID *rids = nullptr;
uint32_t rid_count = viewport_owner.get_rid_count();
rids = (RID *)alloca(sizeof(RID *) * rid_count);
rids = (RID *)alloca(sizeof(RID) * rid_count);
viewport_owner.fill_owned_buffer(rids);
for (uint32_t i = 0; i < rid_count; i++) {
Viewport *viewport = viewport_owner.get_or_null(rids[i]);