[Bf-blender-cvs] [36ae6e66c10] master: Fix T84367: Fix crash when showing invalid/legacy constraints
Philipp Oeser
noreply at git.blender.org
Tue Jan 5 15:34:15 CET 2021
Commit: 36ae6e66c1068b5579c725c3353d39afe96c9d29
Author: Philipp Oeser
Date: Mon Jan 4 14:14:13 2021 +0100
Branches: master
https://developer.blender.org/rB36ae6e66c1068b5579c725c3353d39afe96c9d29
Fix T84367: Fix crash when showing invalid/legacy constraints
Exposed by rBeaa44afe703e.
Definition for CONSTRAINT_TYPE_NULL is not totally clear (it is set for
constraints without data, see an old comment from Ton), but for these, a
TypeInfo cannot be fetched.
Avoid processing those constraints in UI code, just do nothing instead.
Maniphest Tasks: T84367
Differential Revision: https://developer.blender.org/D9987
===================================================================
M source/blender/editors/interface/interface_templates.c
===================================================================
diff --git a/source/blender/editors/interface/interface_templates.c b/source/blender/editors/interface/interface_templates.c
index a035ab86579..e9a6809f170 100644
--- a/source/blender/editors/interface/interface_templates.c
+++ b/source/blender/editors/interface/interface_templates.c
@@ -2301,6 +2301,11 @@ static void object_constraint_panel_id(void *md_link, char *r_name)
bConstraint *con = (bConstraint *)md_link;
const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_from_type(con->type);
+ /* Cannot get TypeInfo for invalid/legacy constraints. */
+ if (cti == NULL) {
+ return;
+ }
+
strcpy(r_name, CONSTRAINT_TYPE_PANEL_PREFIX);
strcat(r_name, cti->structName);
}
@@ -2310,6 +2315,11 @@ static void bone_constraint_panel_id(void *md_link, char *r_name)
bConstraint *con = (bConstraint *)md_link;
const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_from_type(con->type);
+ /* Cannot get TypeInfo for invalid/legacy constraints. */
+ if (cti == NULL) {
+ return;
+ }
+
strcpy(r_name, CONSTRAINT_BONE_TYPE_PANEL_PREFIX);
strcat(r_name, cti->structName);
}
@@ -2340,6 +2350,10 @@ void uiTemplateConstraints(uiLayout *UNUSED(layout), bContext *C, bool use_bone_
UI_panels_free_instanced(C, region);
bConstraint *con = (constraints == NULL) ? NULL : constraints->first;
for (int i = 0; con; i++, con = con->next) {
+ /* Dont show invalid/legacy constraints. */
+ if (con->type == CONSTRAINT_TYPE_NULL) {
+ continue;
+ }
/* Dont show temporary constraints (AutoIK and targetless IK constraints). */
if (con->type == CONSTRAINT_TYPE_KINEMATIC) {
bKinematicConstraint *data = con->data;
@@ -2369,6 +2383,10 @@ void uiTemplateConstraints(uiLayout *UNUSED(layout), bContext *C, bool use_bone_
/* Assuming there's only one group of instanced panels, update the custom data pointers. */
Panel *panel = region->panels.first;
LISTBASE_FOREACH (bConstraint *, con, constraints) {
+ /* Dont show invalid/legacy constraints. */
+ if (con->type == CONSTRAINT_TYPE_NULL) {
+ continue;
+ }
/* Dont show temporary constraints (AutoIK and targetless IK constraints). */
if (con->type == CONSTRAINT_TYPE_KINEMATIC) {
bKinematicConstraint *data = con->data;
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