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.
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Notes:
blender-bot
2023-02-14 06:19:41 +01:00
Referenced by issue #99854, Crash on (curve) Alembic file import
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@ -115,7 +115,7 @@ Curves *curve_legacy_to_curves(const Curve &curve_legacy, const ListBase &nurbs_
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MutableSpan<float> tilts = curves.tilt_for_write();
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auto create_poly = [&](IndexMask selection) {
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threading::parallel_for(selection.index_range(), 246, [&](IndexRange range) {
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threading::parallel_for(selection.index_range(), 256, [&](IndexRange range) {
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for (const int curve_i : selection.slice(range)) {
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const Nurb &src_curve = *src_curves[curve_i];
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const Span<BPoint> src_points(src_curve.bp, src_curve.pntsu);
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@ -142,7 +142,7 @@ Curves *curve_legacy_to_curves(const Curve &curve_legacy, const ListBase &nurbs_
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MutableSpan<int8_t> handle_types_l = curves.handle_types_left_for_write();
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MutableSpan<int8_t> handle_types_r = curves.handle_types_right_for_write();
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threading::parallel_for(selection.index_range(), 246, [&](IndexRange range) {
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threading::parallel_for(selection.index_range(), 256, [&](IndexRange range) {
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for (const int curve_i : selection.slice(range)) {
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const Nurb &src_curve = *src_curves[curve_i];
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const Span<BezTriple> src_points(src_curve.bezt, src_curve.pntsu);
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@ -165,12 +165,12 @@ Curves *curve_legacy_to_curves(const Curve &curve_legacy, const ListBase &nurbs_
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};
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auto create_nurbs = [&](IndexMask selection) {
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threading::parallel_for(selection.index_range(), 246, [&](IndexRange range) {
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MutableSpan<int> resolutions = curves.resolution_for_write();
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MutableSpan<float> nurbs_weights = curves.nurbs_weights_for_write();
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MutableSpan<int8_t> nurbs_orders = curves.nurbs_orders_for_write();
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MutableSpan<int8_t> nurbs_knots_modes = curves.nurbs_knots_modes_for_write();
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MutableSpan<int> resolutions = curves.resolution_for_write();
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MutableSpan<float> nurbs_weights = curves.nurbs_weights_for_write();
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MutableSpan<int8_t> nurbs_orders = curves.nurbs_orders_for_write();
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MutableSpan<int8_t> nurbs_knots_modes = curves.nurbs_knots_modes_for_write();
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threading::parallel_for(selection.index_range(), 256, [&](IndexRange range) {
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for (const int curve_i : selection.slice(range)) {
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const Nurb &src_curve = *src_curves[curve_i];
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const Span src_points(src_curve.bp, src_curve.pntsu);
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