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Fix T99854: Crash converting legacy NURBS curves to new type 

Creating the attributes was done inside a parallel loop. Also correct a
typo for the parallel grain size, which was meant to be a power of two.
This commit is contained in:
Hans Goudey 2022-07-21 12:13:25 -05:00
parent a5c2d0018c
commit ada6012518
Notes: blender-bot 2023-02-14 06:19:41 +01:00 
Referenced by issue #99854, Crash on (curve) Alembic file import
1 changed files with 8 additions and 8 deletions
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16
source/blender/blenkernel/intern/curve_legacy_convert.cc
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@ -115,7 +115,7 @@ Curves *curve_legacy_to_curves(const Curve &curve_legacy, const ListBase &nurbs_
MutableSpan<float> tilts = curves.tilt_for_write();
auto create_poly = [&](IndexMask selection) {
threading::parallel_for(selection.index_range(), 246, [&](IndexRange range) {
threading::parallel_for(selection.index_range(), 256, [&](IndexRange range) {
for (const int curve_i : selection.slice(range)) {
const Nurb &src_curve = *src_curves[curve_i];
const Span<BPoint> src_points(src_curve.bp, src_curve.pntsu);
@ -142,7 +142,7 @@ Curves *curve_legacy_to_curves(const Curve &curve_legacy, const ListBase &nurbs_
MutableSpan<int8_t> handle_types_l = curves.handle_types_left_for_write();
MutableSpan<int8_t> handle_types_r = curves.handle_types_right_for_write();
threading::parallel_for(selection.index_range(), 246, [&](IndexRange range) {
threading::parallel_for(selection.index_range(), 256, [&](IndexRange range) {
for (const int curve_i : selection.slice(range)) {
const Nurb &src_curve = *src_curves[curve_i];
const Span<BezTriple> src_points(src_curve.bezt, src_curve.pntsu);
@ -165,12 +165,12 @@ Curves *curve_legacy_to_curves(const Curve &curve_legacy, const ListBase &nurbs_
};
auto create_nurbs = [&](IndexMask selection) {
threading::parallel_for(selection.index_range(), 246, [&](IndexRange range) {
MutableSpan<int> resolutions = curves.resolution_for_write();
MutableSpan<float> nurbs_weights = curves.nurbs_weights_for_write();
MutableSpan<int8_t> nurbs_orders = curves.nurbs_orders_for_write();
MutableSpan<int8_t> nurbs_knots_modes = curves.nurbs_knots_modes_for_write();
MutableSpan<int> resolutions = curves.resolution_for_write();
MutableSpan<float> nurbs_weights = curves.nurbs_weights_for_write();
MutableSpan<int8_t> nurbs_orders = curves.nurbs_orders_for_write();
MutableSpan<int8_t> nurbs_knots_modes = curves.nurbs_knots_modes_for_write();
threading::parallel_for(selection.index_range(), 256, [&](IndexRange range) {
for (const int curve_i : selection.slice(range)) {
const Nurb &src_curve = *src_curves[curve_i];
const Span src_points(src_curve.bp, src_curve.pntsu);