diff --git a/source/blender/blenkernel/BKE_mesh.h b/source/blender/blenkernel/BKE_mesh.h index 731c9872aae..6c61068b1c2 100644 --- a/source/blender/blenkernel/BKE_mesh.h +++ b/source/blender/blenkernel/BKE_mesh.h @@ -85,9 +85,17 @@ struct Mesh *BKE_mesh_from_bmesh_for_eval_nomain(struct BMesh *bm, * Add original index (#CD_ORIGINDEX) layers if they don't already exist. This is meant to be used * when creating an evaluated mesh from an original edit mode mesh, to allow mapping from the * evaluated vertices to the originals. + * + * The mesh is expected to of a `ME_WRAPPER_TYPE_MDATA` wrapper type. This is asserted. */ void BKE_mesh_ensure_default_orig_index_customdata(struct Mesh *mesh); +/** + * Same as #BKE_mesh_ensure_default_orig_index_customdata but does not perform any checks: they + * must be done by the caller. + */ +void BKE_mesh_ensure_default_orig_index_customdata_no_check(struct Mesh *mesh); + /** * Find the index of the loop in 'poly' which references vertex, * returns -1 if not found @@ -1002,8 +1010,8 @@ void BKE_mesh_calc_edges(struct Mesh *mesh, bool keep_existing_edges, bool selec void BKE_mesh_calc_edges_tessface(struct Mesh *mesh); /* In DerivedMesh.cc */ -void BKE_mesh_wrapper_deferred_finalize(struct Mesh *me_eval, - const struct CustomData_MeshMasks *cd_mask_finalize); +void BKE_mesh_wrapper_deferred_finalize_mdata(struct Mesh *me_eval, + const struct CustomData_MeshMasks *cd_mask_finalize); /* **** Depsgraph evaluation **** */ diff --git a/source/blender/blenkernel/intern/DerivedMesh.cc b/source/blender/blenkernel/intern/DerivedMesh.cc index c2ea01bcadf..a29d8726f21 100644 --- a/source/blender/blenkernel/intern/DerivedMesh.cc +++ b/source/blender/blenkernel/intern/DerivedMesh.cc @@ -84,6 +84,8 @@ static ThreadRWMutex loops_cache_lock = PTHREAD_RWLOCK_INITIALIZER; static void mesh_init_origspace(Mesh *mesh); static void editbmesh_calc_modifier_final_normals(Mesh *mesh_final, const CustomData_MeshMasks *final_datamask); +static void editbmesh_calc_modifier_final_normals_or_defer( + Mesh *mesh_final, const CustomData_MeshMasks *final_datamask); /* -------------------------------------------------------------------- */ @@ -663,8 +665,8 @@ static void mesh_calc_finalize(const Mesh *mesh_input, Mesh *mesh_eval) mesh_eval->edit_mesh = mesh_input->edit_mesh; } -void BKE_mesh_wrapper_deferred_finalize(Mesh *me_eval, - const CustomData_MeshMasks *cd_mask_finalize) +void BKE_mesh_wrapper_deferred_finalize_mdata(Mesh *me_eval, + const CustomData_MeshMasks *cd_mask_finalize) { if (me_eval->runtime.wrapper_type_finalize & (1 << ME_WRAPPER_TYPE_BMESH)) { editbmesh_calc_modifier_final_normals(me_eval, cd_mask_finalize); @@ -1286,12 +1288,6 @@ bool editbmesh_modifier_is_enabled(const Scene *scene, static void editbmesh_calc_modifier_final_normals(Mesh *mesh_final, const CustomData_MeshMasks *final_datamask) { - if (mesh_final->runtime.wrapper_type != ME_WRAPPER_TYPE_MDATA) { - /* Generated at draw time. */ - mesh_final->runtime.wrapper_type_finalize = (1 << mesh_final->runtime.wrapper_type); - return; - } - const bool calc_loop_normals = ((mesh_final->flag & ME_AUTOSMOOTH) != 0 || (final_datamask->lmask & CD_MASK_NORMAL) != 0); @@ -1319,6 +1315,18 @@ static void editbmesh_calc_modifier_final_normals(Mesh *mesh_final, } } +static void editbmesh_calc_modifier_final_normals_or_defer( + Mesh *mesh_final, const CustomData_MeshMasks *final_datamask) +{ + if (mesh_final->runtime.wrapper_type != ME_WRAPPER_TYPE_MDATA) { + /* Generated at draw time. */ + mesh_final->runtime.wrapper_type_finalize = (1 << mesh_final->runtime.wrapper_type); + return; + } + + editbmesh_calc_modifier_final_normals(mesh_final, final_datamask); +} + static void editbmesh_calc_modifiers(struct Depsgraph *depsgraph, const Scene *scene, Object *ob, @@ -1598,9 +1606,9 @@ static void editbmesh_calc_modifiers(struct Depsgraph *depsgraph, } /* Compute normals. */ - editbmesh_calc_modifier_final_normals(mesh_final, &final_datamask); + editbmesh_calc_modifier_final_normals_or_defer(mesh_final, &final_datamask); if (mesh_cage && (mesh_cage != mesh_final)) { - editbmesh_calc_modifier_final_normals(mesh_cage, &final_datamask); + editbmesh_calc_modifier_final_normals_or_defer(mesh_cage, &final_datamask); } /* Return final mesh. */ diff --git a/source/blender/blenkernel/intern/mesh.cc b/source/blender/blenkernel/intern/mesh.cc index 2a14370bf93..cf05dc0404e 100644 --- a/source/blender/blenkernel/intern/mesh.cc +++ b/source/blender/blenkernel/intern/mesh.cc @@ -1190,6 +1190,11 @@ static void ensure_orig_index_layer(CustomData &data, const int size) void BKE_mesh_ensure_default_orig_index_customdata(Mesh *mesh) { BLI_assert(mesh->runtime.wrapper_type == ME_WRAPPER_TYPE_MDATA); + BKE_mesh_ensure_default_orig_index_customdata_no_check(mesh); +} + +void BKE_mesh_ensure_default_orig_index_customdata_no_check(Mesh *mesh) +{ ensure_orig_index_layer(mesh->vdata, mesh->totvert); ensure_orig_index_layer(mesh->edata, mesh->totedge); ensure_orig_index_layer(mesh->pdata, mesh->totpoly); diff --git a/source/blender/blenkernel/intern/mesh_wrapper.cc b/source/blender/blenkernel/intern/mesh_wrapper.cc index 0362e4866e3..0b61b876abe 100644 --- a/source/blender/blenkernel/intern/mesh_wrapper.cc +++ b/source/blender/blenkernel/intern/mesh_wrapper.cc @@ -103,11 +103,7 @@ void BKE_mesh_wrapper_ensure_mdata(Mesh *me) /* Must isolate multithreaded tasks while holding a mutex lock. */ blender::threading::isolate_task([&]() { - const eMeshWrapperType geom_type_orig = static_cast( - me->runtime.wrapper_type); - me->runtime.wrapper_type = ME_WRAPPER_TYPE_MDATA; - - switch (geom_type_orig) { + switch (static_cast(me->runtime.wrapper_type)) { case ME_WRAPPER_TYPE_MDATA: case ME_WRAPPER_TYPE_SUBD: { break; /* Quiet warning. */ @@ -132,7 +128,7 @@ void BKE_mesh_wrapper_ensure_mdata(Mesh *me) * There is also a performance aspect, where this also assumes that original indices are * always needed when converting an edit mesh to a mesh. That might be wrong, but it's not * harmful. */ - BKE_mesh_ensure_default_orig_index_customdata(me); + BKE_mesh_ensure_default_orig_index_customdata_no_check(me); EditMeshData *edit_data = me->runtime.edit_data; if (edit_data->vertexCos) { @@ -144,8 +140,12 @@ void BKE_mesh_wrapper_ensure_mdata(Mesh *me) } if (me->runtime.wrapper_type_finalize) { - BKE_mesh_wrapper_deferred_finalize(me, &me->runtime.cd_mask_extra); + BKE_mesh_wrapper_deferred_finalize_mdata(me, &me->runtime.cd_mask_extra); } + + /* Keep type assignment last, so that read-only access only uses the mdata code paths after all + * the underlying data has been initialized. */ + me->runtime.wrapper_type = ME_WRAPPER_TYPE_MDATA; }); BLI_mutex_unlock(mesh_eval_mutex);