Differential D15857 Diff 55253 source/blender/blenkernel/intern/mesh_convert.cc

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source/blender/blenkernel/intern/mesh_convert.cc

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/* -- */		/* -- */
#include "BKE_pointcloud.h"		#include "BKE_pointcloud.h"

#include "BKE_curve_to_mesh.hh"		#include "BKE_curve_to_mesh.hh"

#include "DEG_depsgraph.h"		#include "DEG_depsgraph.h"
#include "DEG_depsgraph_query.h"		#include "DEG_depsgraph_query.h"

		using blender::float3;
using blender::IndexRange;		using blender::IndexRange;
using blender::MutableSpan;		using blender::MutableSpan;
using blender::Span;		using blender::Span;
		using blender::StringRefNull;

/* Define for cases when you want extra validation of mesh		/* Define for cases when you want extra validation of mesh
* after certain modifications.		* after certain modifications.
*/		*/
// #undef VALIDATE_MESH		// #undef VALIDATE_MESH

#ifdef VALIDATE_MESH		#ifdef VALIDATE_MESH
# define ASSERT_IS_VALID_MESH(mesh) \		# define ASSERT_IS_VALID_MESH(mesh) \
▲ Show 20 Lines • Show All 1,007 Lines • ▼ Show 20 Lines	Mesh BKE_mesh_new_from_object_to_bmain(Main bmain,

/* NOTE: BKE_mesh_nomain_to_mesh() does not copy materials and instead it preserves them in the		/* NOTE: BKE_mesh_nomain_to_mesh() does not copy materials and instead it preserves them in the
* destination mesh. So we "steal" all related fields before calling it.		* destination mesh. So we "steal" all related fields before calling it.
*		*
* TODO(sergey): We really better have a function which gets and ID and accepts it for the bmain.		* TODO(sergey): We really better have a function which gets and ID and accepts it for the bmain.
*/		*/
mesh_in_bmain->mat = mesh->mat;		mesh_in_bmain->mat = mesh->mat;
mesh_in_bmain->totcol = mesh->totcol;		mesh_in_bmain->totcol = mesh->totcol;
mesh_in_bmain->flag = mesh->flag;
mesh_in_bmain->smoothresh = mesh->smoothresh;
mesh->mat = nullptr;		mesh->mat = nullptr;
		mesh->totcol = 0;

BKE_mesh_nomain_to_mesh(mesh, mesh_in_bmain, nullptr, &CD_MASK_MESH, true);		BKE_mesh_nomain_to_mesh(mesh, mesh_in_bmain, nullptr);

/* Anonymous attributes shouldn't exist on original data. */		/* Anonymous attributes shouldn't exist on original data. */
blender::bke::mesh_attributes_for_write(*mesh_in_bmain).remove_anonymous();		blender::bke::mesh_attributes_for_write(*mesh_in_bmain).remove_anonymous();

/* User-count is required because so far mesh was in a limbo, where library management does		/* User-count is required because so far mesh was in a limbo, where library management does
* not perform any user management (i.e. copy of a mesh will not increase users of materials). */		* not perform any user management (i.e. copy of a mesh will not increase users of materials). */
BKE_library_foreach_ID_link(		BKE_library_foreach_ID_link(
nullptr, &mesh_in_bmain->id, foreach_libblock_make_usercounts_callback, nullptr, IDWALK_NOP);		nullptr, &mesh_in_bmain->id, foreach_libblock_make_usercounts_callback, nullptr, IDWALK_NOP);
▲ Show 20 Lines • Show All 136 Lines • ▼ Show 20 Lines	Mesh BKE_mesh_create_derived_for_modifier(struct Depsgraph depsgraph,

if (deformedVerts != nullptr) {		if (deformedVerts != nullptr) {
MEM_freeN(deformedVerts);		MEM_freeN(deformedVerts);
}		}

return result;		return result;
}		}

/* This is a Mesh-based copy of the same function in DerivedMesh.cc */		static KeyBlock *keyblock_ensure_from_uid(Key &key, const int uid, const StringRefNull name)
static void shapekey_layers_to_keyblocks(Mesh mesh_src, Mesh mesh_dst, int actshape_uid)
{		{
KeyBlock *kb;		if (KeyBlock *kb = BKE_keyblock_find_uid(&key, uid)) {
int i, j, tot;		return kb;

if (!mesh_dst->key) {
return;
}

tot = CustomData_number_of_layers(&mesh_src->vdata, CD_SHAPEKEY);
for (i = 0; i < tot; i++) {
CustomDataLayer *layer =
&mesh_src->vdata.layers[CustomData_get_layer_index_n(&mesh_src->vdata, CD_SHAPEKEY, i)];
float(*kbcos)[3];

for (kb = (KeyBlock *)mesh_dst->key->block.first; kb; kb = kb->next) {
if (kb->uid == layer->uid) {
break;
}		}
		KeyBlock *kb = BKE_keyblock_add(&key, name.c_str());
		kb->uid = uid;
		return kb;
}		}

		static int find_object_active_key_uid(const Key &key, const Object &object)
		{
		const int active_kb_index = object.shapenr - 1;
		const KeyBlock kb = (const KeyBlock )BLI_findlink(&key.block, active_kb_index);
if (!kb) {		if (!kb) {
kb = BKE_keyblock_add(mesh_dst->key, layer->name);		CLOG_ERROR(&LOG, "Could not find object's active shapekey %d", active_kb_index);
kb->uid = layer->uid;		return -1;
}		}
		return kb->uid;
if (kb->data) {
MEM_freeN(kb->data);
}		}

const float(cos)[3] = (const float()[3])CustomData_get_layer_n(		static void move_shapekey_layers_to_keyblocks(Mesh &mesh, Key &key_dst, const int actshape_uid)
&mesh_src->vdata, CD_SHAPEKEY, i);		{
kb->totelem = mesh_src->totvert;		using namespace blender::bke;
		for (const int i : IndexRange(CustomData_number_of_layers(&mesh.vdata, CD_SHAPEKEY))) {
		const int layer_index = CustomData_get_layer_index_n(&mesh.vdata, CD_SHAPEKEY, i);
		CustomDataLayer &layer = mesh.vdata.layers[layer_index];

kb->data = kbcos = (float(*)[3])MEM_malloc_arrayN(kb->totelem, sizeof(float[3]), __func__);		KeyBlock *kb = keyblock_ensure_from_uid(key_dst, layer.uid, layer.name);
if (kb->uid == actshape_uid) {		MEM_SAFE_FREE(kb->data);
MVert *mvert = mesh_src->mvert;

for (j = 0; j < mesh_src->totvert; j++, kbcos++, mvert++) {		kb->totelem = mesh.totvert;
copy_v3_v3(*kbcos, mvert->co);
}		if (kb->uid == actshape_uid) {
		const Span<float3> layer_coords(static_cast<const float3 *>(layer.data), mesh.totvert);
		kb->data = MEM_malloc_arrayN(kb->totelem, sizeof(float3), __func__);
		MutableSpan<float3> kb_coords(static_cast<float3 *>(kb->data), kb->totelem);
		mesh_attributes(mesh).lookup<float3>("position").materialize(kb_coords);
		campbellbartonUnsubmitted Not Done Inline Actions This isn't used, for some reason it doesn't show as a compiler warning, assume it can be removed. campbellbarton: This isn't used, for some reason it doesn't show as a compiler warning, assume it can be…
}		}
else {		else {
for (j = 0; j < kb->totelem; j++, cos++, kbcos++) {		kb->data = layer.data;
copy_v3_v3(kbcos, cos);		layer.data = nullptr;
}
}		}
}		}

for (kb = (KeyBlock *)mesh_dst->key->block.first; kb; kb = kb->next) {		LISTBASE_FOREACH (KeyBlock *, kb, &key_dst.block) {
if (kb->totelem != mesh_src->totvert) {		if (kb->totelem != mesh.totvert) {
if (kb->data) {		MEM_SAFE_FREE(kb->data);
MEM_freeN(kb->data);
}

kb->totelem = mesh_src->totvert;
kb->data = MEM_calloc_arrayN(kb->totelem, sizeof(float[3]), __func__);
CLOG_ERROR(&LOG, "lost a shapekey layer: '%s'! (bmesh internal error)", kb->name);
}		}
		kb->totelem = mesh.totvert;
		kb->data = MEM_cnew_array<float3>(kb->totelem, __func__);
		CLOG_ERROR(&LOG, "Data for shape key '%s' on mesh missing from evaluated mesh ", kb->name);
}		}
}		}

void BKE_mesh_nomain_to_mesh(Mesh *mesh_src,		void BKE_mesh_nomain_to_mesh(Mesh mesh_src, Mesh mesh_dst, Object *ob)
Mesh *mesh_dst,
Object *ob,
const CustomData_MeshMasks *mask,
bool take_ownership)
{		{
BLI_assert(mesh_src->id.tag & LIB_TAG_NO_MAIN);		BLI_assert(mesh_src->id.tag & LIB_TAG_NO_MAIN);

/* mesh_src might depend on mesh_dst, so we need to do everything with a local copy */
/* TODO(Sybren): the above claim came from 2.7x derived-mesh code (DM_to_mesh);
* check whether it is still true with Mesh */
Mesh tmp = blender::dna::shallow_copy(*mesh_dst);
int totvert, totedge /, totface / /* UNUSED */, totloop, totpoly;
bool did_shapekeys = false;
eCDAllocType alloctype = CD_DUPLICATE;

if (take_ownership /* && dm->type == DM_TYPE_CDDM && dm->needsFree */) {
bool has_any_referenced_layers = CustomData_has_referenced(&mesh_src->vdata) \|\|
CustomData_has_referenced(&mesh_src->edata) \|\|
CustomData_has_referenced(&mesh_src->ldata) \|\|
CustomData_has_referenced(&mesh_src->fdata) \|\|
CustomData_has_referenced(&mesh_src->pdata);
if (!has_any_referenced_layers) {
alloctype = CD_ASSIGN;
}
}
CustomData_reset(&tmp.vdata);
CustomData_reset(&tmp.edata);
CustomData_reset(&tmp.fdata);
CustomData_reset(&tmp.ldata);
CustomData_reset(&tmp.pdata);

totvert = tmp.totvert = mesh_src->totvert;
totedge = tmp.totedge = mesh_src->totedge;
totloop = tmp.totloop = mesh_src->totloop;
totpoly = tmp.totpoly = mesh_src->totpoly;
tmp.totface = 0;

CustomData_copy(&mesh_src->vdata, &tmp.vdata, mask->vmask, alloctype, totvert);
CustomData_copy(&mesh_src->edata, &tmp.edata, mask->emask, alloctype, totedge);
CustomData_copy(&mesh_src->ldata, &tmp.ldata, mask->lmask, alloctype, totloop);
CustomData_copy(&mesh_src->pdata, &tmp.pdata, mask->pmask, alloctype, totpoly);
tmp.cd_flag = mesh_src->cd_flag;
tmp.runtime.deformed_only = mesh_src->runtime.deformed_only;

/* Clear the normals completely, since the new vertex / polygon count might be different. */
BKE_mesh_clear_derived_normals(&tmp);

if (CustomData_has_layer(&mesh_src->vdata, CD_SHAPEKEY)) {
KeyBlock *kb;
int uid;

if (ob) {
kb = (KeyBlock *)BLI_findlink(&mesh_dst->key->block, ob->shapenr - 1);
if (kb) {
uid = kb->uid;
}
else {
CLOG_ERROR(&LOG, "could not find active shapekey %d!", ob->shapenr - 1);

uid = INT_MAX;
}
}
else {
/* if no object, set to INT_MAX so we don't mess up any shapekey layers */
uid = INT_MAX;
}

shapekey_layers_to_keyblocks(mesh_src, mesh_dst, uid);
did_shapekeys = true;
}

/* copy texture space */
if (ob) {		if (ob) {
BKE_mesh_texspace_copy_from_object(&tmp, ob);		BLI_assert(mesh_dst == ob->data);
}		}

/* not all DerivedMeshes store their verts/edges/faces in CustomData, so		/* Make sure referenced layers have a single user so assigning them to the mesh in main doesn't
* we set them here in case they are missing */		* share them. "Referenced" layers are not expected to be shared between original meshes. */
/* TODO(Sybren): we could probably replace CD_ASSIGN with alloctype and		CustomData_duplicate_referenced_layers(&mesh_src->vdata, mesh_src->totvert);
* always directly pass mesh_src->mxxx, instead of using a ternary operator. */		CustomData_duplicate_referenced_layers(&mesh_src->edata, mesh_src->totedge);
if (!CustomData_has_layer(&tmp.vdata, CD_MVERT)) {		CustomData_duplicate_referenced_layers(&mesh_src->pdata, mesh_src->totpoly);
CustomData_add_layer(&tmp.vdata,		CustomData_duplicate_referenced_layers(&mesh_src->ldata, mesh_src->totloop);
CD_MVERT,
CD_ASSIGN,		BKE_mesh_clear_geometry(mesh_dst);
(alloctype == CD_ASSIGN) ? mesh_src->mvert :
MEM_dupallocN(mesh_src->mvert),		mesh_dst->totvert = mesh_src->totvert;
totvert);		mesh_dst->totedge = mesh_src->totedge;
}		mesh_dst->totpoly = mesh_src->totpoly;
if (!CustomData_has_layer(&tmp.edata, CD_MEDGE)) {		mesh_dst->totloop = mesh_src->totloop;
CustomData_add_layer(&tmp.edata,
CD_MEDGE,		/* Using #CD_MASK_MESH ensures that only data that should exist in Main meshes is moved. */
CD_ASSIGN,		const CustomData_MeshMasks mask = CD_MASK_MESH;
(alloctype == CD_ASSIGN) ? mesh_src->medge :		CustomData_copy(&mesh_src->vdata, &mesh_dst->vdata, mask.vmask, CD_ASSIGN, mesh_src->totvert);
MEM_dupallocN(mesh_src->medge),		CustomData_copy(&mesh_src->edata, &mesh_dst->edata, mask.emask, CD_ASSIGN, mesh_src->totedge);
totedge);		CustomData_copy(&mesh_src->pdata, &mesh_dst->pdata, mask.pmask, CD_ASSIGN, mesh_src->totpoly);
}		CustomData_copy(&mesh_src->ldata, &mesh_dst->ldata, mask.lmask, CD_ASSIGN, mesh_src->totloop);
if (!CustomData_has_layer(&tmp.pdata, CD_MPOLY)) {		BKE_defgroup_copy_list(&mesh_dst->vertex_group_names, &mesh_src->vertex_group_names);
CustomData_add_layer(&tmp.ldata,
CD_MLOOP,
CD_ASSIGN,
(alloctype == CD_ASSIGN) ? mesh_src->mloop :
MEM_dupallocN(mesh_src->mloop),
tmp.totloop);
CustomData_add_layer(&tmp.pdata,
CD_MPOLY,
CD_ASSIGN,
(alloctype == CD_ASSIGN) ? mesh_src->mpoly :
MEM_dupallocN(mesh_src->mpoly),
tmp.totpoly);
}

/* object had got displacement layer, should copy this layer to save sculpted data */
/* NOTE(nazgul): maybe some other layers should be copied? */
if (CustomData_has_layer(&mesh_dst->ldata, CD_MDISPS)) {
if (totloop == mesh_dst->totloop) {
MDisps mdisps = (MDisps )CustomData_get_layer(&mesh_dst->ldata, CD_MDISPS);
CustomData_add_layer(&tmp.ldata, CD_MDISPS, alloctype, mdisps, totloop);
if (alloctype == CD_ASSIGN) {
/* Assign nullptr to prevent double-free. */
CustomData_set_layer(&mesh_dst->ldata, CD_MDISPS, nullptr);
}
}
}

/* yes, must be before _and_ after tessellate */
BKE_mesh_update_customdata_pointers(&tmp, false);

CustomData_free(&mesh_dst->vdata, mesh_dst->totvert);
CustomData_free(&mesh_dst->edata, mesh_dst->totedge);
CustomData_free(&mesh_dst->fdata, mesh_dst->totface);
CustomData_free(&mesh_dst->ldata, mesh_dst->totloop);
CustomData_free(&mesh_dst->pdata, mesh_dst->totpoly);

/* ok, this should now use new CD shapekey data,
* which should be fed through the modifier
* stack */
if (tmp.totvert != mesh_dst->totvert && !did_shapekeys && mesh_dst->key) {
CLOG_ERROR(&LOG, "YEEK! this should be recoded! Shape key loss!: ID '%s'", tmp.id.name);
if (tmp.key && !(tmp.id.tag & LIB_TAG_NO_MAIN)) {
id_us_min(&tmp.key->id);
}
tmp.key = nullptr;
}

/* Clear selection history */
MEM_SAFE_FREE(tmp.mselect);
tmp.totselect = 0;
tmp.texflag &= ~ME_AUTOSPACE_EVALUATED;

/* Clear any run-time data.
* Even though this mesh won't typically have run-time data, the Python API can for e.g.
* create loop-triangle cache here, which is confusing when left in the mesh, see: T81136. */
BKE_mesh_runtime_clear_geometry(&tmp);

/* skip the listbase */		BKE_mesh_update_customdata_pointers(mesh_dst, false);
MEMCPY_STRUCT_AFTER(mesh_dst, &tmp, id.prev);

BLI_freelistN(&mesh_dst->vertex_group_names);		BKE_mesh_copy_parameters(mesh_dst, mesh_src);
BKE_defgroup_copy_list(&mesh_dst->vertex_group_names, &mesh_src->vertex_group_names);		mesh_dst->cd_flag = mesh_src->cd_flag;
mesh_dst->vertex_group_active_index = mesh_src->vertex_group_active_index;

if (take_ownership) {		/* For original meshes, shape key data is stored in the #Key data-block, so it
if (alloctype == CD_ASSIGN) {		* must be moved from the storage in #CustomData layers used for evalaution. */
		JacquesLuckeUnsubmitted Not Done Inline Actions typo (`evaluation`) JacquesLucke: typo (`evaluation`)
CustomData_free_typemask(&mesh_src->vdata, mesh_src->totvert, ~mask->vmask);		if (Key *key_dst = mesh_dst->key) {
CustomData_free_typemask(&mesh_src->edata, mesh_src->totedge, ~mask->emask);		if (CustomData_has_layer(&mesh_src->vdata, CD_SHAPEKEY)) {
CustomData_free_typemask(&mesh_src->ldata, mesh_src->totloop, ~mask->lmask);		/* If no object, set to -1 so we don't mess up any shapekey layers. */
CustomData_free_typemask(&mesh_src->pdata, mesh_src->totpoly, ~mask->pmask);		const int uid_active = ob ? find_object_active_key_uid(key_dst, ob) : -1;
		move_shapekey_layers_to_keyblocks(mesh_src, key_dst, uid_active);
		}
		else if (mesh_src->totvert != mesh_dst->totvert) {
		CLOG_ERROR(&LOG, "Mesh in Main '%s' lost shape keys", mesh_src->id.name);
		if (mesh_src->key) {
		id_us_min(&mesh_src->key->id);
		}
}		}
BKE_id_free(nullptr, mesh_src);
}		}

BKE_mesh_assert_normals_dirty_or_calculated(mesh_dst);		BKE_id_free(nullptr, mesh_src);
}		}

void BKE_mesh_nomain_to_meshkey(Mesh mesh_src, Mesh mesh_dst, KeyBlock *kb)		void BKE_mesh_nomain_to_meshkey(Mesh mesh_src, Mesh mesh_dst, KeyBlock *kb)
{		{
BLI_assert(mesh_src->id.tag & LIB_TAG_NO_MAIN);		BLI_assert(mesh_src->id.tag & LIB_TAG_NO_MAIN);

int a, totvert = mesh_src->totvert;		int a, totvert = mesh_src->totvert;
float *fp;		float *fp;
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