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Fix #114060: GPv3: Transform crash with multiple object editing #114088

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Hans Goudey merged 2 commits from casey-bianco-davis/blender:GPv3-fix-transform-array-error into main 2023-10-30 08:15:02 +01:00
Conversation 1 Commits 2 Files Changed 1 +21 -10
casey-bianco-davis commented 2023-10-24 06:03:44 +02:00
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The problem was that the array of IndexMasks was set to the number of objects selected and not the number of curves in all selected objects.

This fixes the transform code from relying on undefined behavior.

The problem was that the array of `IndexMask`s was set to the number of objects selected and not the number of curves in all selected objects. This fixes the transform code from relying on undefined behavior.
casey-bianco-davis added 1 commit 2023-10-24 06:04:01 +02:00
c08ca09fd5 Fix #114060: GPv3: Avoid crashes for multiple curve grease pencil objects 
The problem was that the array of `IndexMask`s was set to the number of objects selected and not the number of curves in all selected objects.
casey-bianco-davis requested review from Falk David 2023-10-24 06:05:38 +02:00
casey-bianco-davis commented 2023-10-24 07:29:48 +02:00
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This currently just removes saving the selected points and instead calls retrieve_selected_points twice.
But it could instead be implemented with Vector and appending the selected points IndexMask in to it.
Or could first loop thru the editable curves counting them and create an Array (but this would have 3 total loops thru all layers).
What do you think? @filedescriptor

This currently just removes saving the selected points and instead calls `retrieve_selected_points` twice. But it could instead be implemented with `Vector` and appending the selected points `IndexMask` in to it. Or could first loop thru the editable curves counting them and create an `Array` (but this would have 3 total loops thru all layers). What do you think? @filedescriptor
Hans Goudey requested changes 2023-10-24 10:34:57 +02:00
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We shouldn't generate the IndexMask twice here. Better to use a Vector or Map or something like that if the size is not known in advance.

EDIT: Sorry, didn't see the comment above. Either looping a third time or using a Vector makes sense to me.

We shouldn't generate the `IndexMask` twice here. Better to use a `Vector` or `Map` or something like that if the size is not known in advance. EDIT: Sorry, didn't see the comment above. Either looping a third time or using a `Vector` makes sense to me.
casey-bianco-davis added 1 commit 2023-10-25 03:10:03 +02:00
ccff39a7dc GPv3: use `Array` for saving selected points 
Note: This does mean that the code loops thru the grease pencil objects and all it's layers 3 times.
Falk David approved these changes 2023-10-25 10:28:17 +02:00
Hans Goudey approved these changes 2023-10-25 14:01:24 +02:00
source/blender/editors/transform/transform_convert_grease_pencil.cc
@ -31,2 +29,4 @@
const bool use_proportional_edit = (t->flag & T_PROP_EDIT_ALL) != 0;
const bool use_connected_only = (t->flag & T_PROP_CONNECTED) != 0;
int number_of_layers_total = 0;
Hans Goudey commented 2023-10-25 14:01:21 +02:00
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Seems simpler to gather a Vector<Drawing *> here, and simplify the iteration in the other two steps. But the patch is fine to go in either way I think.

Seems simpler to gather a `Vector<Drawing *>` here, and simplify the iteration in the other two steps. But the patch is fine to go in either way I think.
Hans Goudey changed title from Fix #114060: GPv3: Avoid crashes for multiple curve grease pencil objects to Fix #114060: GPv3: Transform crash with multiple object editing 2023-10-30 08:14:29 +01:00
Hans Goudey merged commit dddd1d224d into main 2023-10-30 08:15:02 +01:00
casey-bianco-davis deleted branch GPv3-fix-transform-array-error 2023-10-31 00:05:47 +01:00
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