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Fix #120731: sculpt trim tool crash #120733

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Hans Goudey merged 2 commits from PratikPB2123/blender:120731-trim-tool-crash into main 2024-04-19 20:27:12 +02:00
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Pratik Borhade commented 2024-04-17 10:39:58 +02:00
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Caused by f7d5ec8661
initialize_cursor_info requires gesture_data.operation initialized.
So move allocation outside of init_operation

Caused by f7d5ec8661cac87553c9aa199b38d65a8052d666 `initialize_cursor_info` requires `gesture_data.operation` initialized. So move allocation outside of `init_operation`
Pratik Borhade added 1 commit 2024-04-17 10:40:10 +02:00
905dcc0ec4 Fix #120731: sculpt trim tool crash 
`initialize_cursor_info` requires `gesture_data.operation` initialized.
So call this function after `init_operation`.
Pratik Borhade requested review from Hans Goudey 2024-04-17 10:40:26 +02:00
Pratik Borhade commented 2024-04-17 10:44:02 +02:00
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I can not find @Sean-Kim in reviewers list so tagging in comments ;)

I can not find @Sean-Kim in reviewers list so tagging in comments ;)
Sean Kim requested changes 2024-04-17 10:58:43 +02:00
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Sean Kim left a comment
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Ugh, sorry. Don't know how I missed this crash before submitting the PR. Appreciate you taking a stab at the fix.

Made a note of what I noticed, but it's late at night here and I won't be able to check replies until tomorrow.

Ugh, sorry. Don't know how I missed this crash before submitting the PR. Appreciate you taking a stab at the fix. Made a note of what I noticed, but it's late at night here and I won't be able to check replies until tomorrow.
source/blender/editors/sculpt_paint/sculpt_trim.cc Outdated
@ -727,3 +727,3 @@
initialize_cursor_info(*C, *op, *gesture_data);
init_operation(*gesture_data, *op);
initialize_cursor_info(*C, *op, *gesture_data);
Sean Kim commented 2024-04-17 10:57:50 +02:00
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The order of initialze_cursor_info and then init_operation is actually still needed. This fix would just introduce other errors on the following line:

if (!trim_operation->initial_hit) {
    trim_operation->orientation = OrientationType::View;
}

For now, this is probably best fixed by adding something like

gesture_data->operation = reinterpret_cast<gesture::Operation *>(MEM_cnew<TrimOperation>(__func__));

above initialize_cursor_info

The order of `initialze_cursor_info` and then `init_operation` is actually still needed. This fix would just introduce other errors on the following line: ``` if (!trim_operation->initial_hit) { trim_operation->orientation = OrientationType::View; } ``` For now, this is probably best fixed by adding something like `gesture_data->operation = reinterpret_cast<gesture::Operation *>(MEM_cnew<TrimOperation>(__func__));` above `initialize_cursor_info`
Pratik Borhade commented 2024-04-17 11:29:22 +02:00
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Hi, this will cause the memory leak. I would instead call initialize_cursor_info inside init_operation after operation is initialized.

Hi, this will cause the memory leak. I would instead call `initialize_cursor_info` inside `init_operation` after operation is initialized.
Sean Kim commented 2024-04-17 11:37:58 +02:00
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This allocation is already occurring in the existing code inside init_operation and is cleaned up when the unique_ptr goes out of scope by the GestureData destructor, but I agree that moving initialize_cursor_info into init_operation is also a fine way of solving this.

This allocation is already occurring in the existing code inside `init_operation` and is cleaned up when the `unique_ptr` goes out of scope by the `GestureData` destructor, but I agree that moving `initialize_cursor_info` into `init_operation` is also a fine way of solving this.
Pratik Borhade commented 2024-04-17 11:58:39 +02:00
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This allocation is already occurring in the existing code inside init_operation and is cleaned up when the unique_ptr goes out of scope by the GestureData destructor

Pointer was created in _exec function, it'll be freed once we exit the _exec function. So the earlier allocated memory in initialize_cursor_info is not freed.

BTW, I ended up moving allocation outside of init_operation 👀

> This allocation is already occurring in the existing code inside init_operation and is cleaned up when the unique_ptr goes out of scope by the GestureData destructor Pointer was created in _exec function, it'll be freed once we exit the _exec function. So the earlier allocated memory in `initialize_cursor_info` is not freed. BTW, I ended up moving allocation outside of init_operation 👀
Pratik Borhade added 1 commit 2024-04-17 11:56:01 +02:00
Sean Kim approved these changes 2024-04-17 18:34:05 +02:00
Hans Goudey approved these changes 2024-04-19 20:26:43 +02:00
Hans Goudey merged commit d7cd25fc94 into main 2024-04-19 20:27:12 +02:00
Pratik Borhade deleted branch 120731-trim-tool-crash 2024-04-20 10:34:14 +02:00
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Reference: blender/blender#120733
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