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fffff5a9931931a5706fcd6de7743b3021bc09c2
blender-archive/source/blender/blenkernel/intern/data_transfer.c
Bastien Montagne fffff5a993 Cleanup: nuke DM out of data transfer code. 
This was actually rather hairy, this code is huge and complicated, easy
to make mistakes...

Good thing is, it will allow for significant simplification and more
(name) cleanup in following commits ;)
2018-06-21 15:33:10 +02:00

1476 lines
49 KiB
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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2014 by Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Bastien Montagne.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/data_transfer.c
* \ingroup bke
*/
#include "MEM_guardedalloc.h"
#include "DNA_customdata_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_mesh_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BLI_array.h"
#include "BLI_math.h"
#include "BLI_blenlib.h"
#include "BLI_utildefines.h"
#include "BKE_context.h"
#include "BKE_customdata.h"
#include "BKE_data_transfer.h"
#include "BKE_deform.h"
#include "BKE_mesh.h"
#include "BKE_mesh_mapping.h"
#include "BKE_mesh_runtime.h"
#include "BKE_mesh_remap.h"
#include "BKE_object.h"
#include "BKE_object_deform.h"
#include "BKE_report.h"
#include "data_transfer_intern.h"
CustomDataMask BKE_object_data_transfer_dttypes_to_cdmask(const int dtdata_types)
{
CustomDataMask cddata_mask = 0;
int i;
for (i = 0; i < DT_TYPE_MAX; i++) {
const int dtdata_type = 1 << i;
int cddata_type;
if (!(dtdata_types & dtdata_type)) {
continue;
}
cddata_type = BKE_object_data_transfer_dttype_to_cdtype(dtdata_type);
if (!(cddata_type & CD_FAKE)) {
cddata_mask |= 1LL << cddata_type;
}
else if (cddata_type == CD_FAKE_MDEFORMVERT) {
cddata_mask |= CD_MASK_MDEFORMVERT; /* Exception for vgroups :/ */
}
else if (cddata_type == CD_FAKE_UV) {
cddata_mask |= CD_MASK_MLOOPUV;
}
else if (cddata_type == CD_FAKE_LNOR) {
cddata_mask |= CD_MASK_NORMAL | CD_MASK_CUSTOMLOOPNORMAL;
}
}
return cddata_mask;
}
/* Check what can do each layer type (if it is actually handled by transferdata, if it supports advanced mixing... */
bool BKE_object_data_transfer_get_dttypes_capacity(
const int dtdata_types, bool *r_advanced_mixing, bool *r_threshold)
{
int i;
bool ret = false;
*r_advanced_mixing = false;
*r_threshold = false;
for (i = 0; (i < DT_TYPE_MAX) && !(ret && *r_advanced_mixing && *r_threshold); i++) {
const int dtdata_type = 1 << i;
if (!(dtdata_types & dtdata_type)) {
continue;
}
switch (dtdata_type) {
/* Vertex data */
case DT_TYPE_MDEFORMVERT:
*r_advanced_mixing = true;
*r_threshold = true;
ret = true;
break;
case DT_TYPE_SKIN:
*r_threshold = true;
ret = true;
break;
case DT_TYPE_BWEIGHT_VERT:
ret = true;
break;
/* Edge data */
case DT_TYPE_SHARP_EDGE:
*r_threshold = true;
ret = true;
break;
case DT_TYPE_SEAM:
*r_threshold = true;
ret = true;
break;
case DT_TYPE_CREASE:
ret = true;
break;
case DT_TYPE_BWEIGHT_EDGE:
ret = true;
break;
case DT_TYPE_FREESTYLE_EDGE:
*r_threshold = true;
ret = true;
break;
/* Loop/Poly data */
case DT_TYPE_UV:
ret = true;
break;
case DT_TYPE_VCOL:
*r_advanced_mixing = true;
*r_threshold = true;
ret = true;
break;
case DT_TYPE_LNOR:
*r_advanced_mixing = true;
ret = true;
break;
case DT_TYPE_SHARP_FACE:
*r_threshold = true;
ret = true;
break;
case DT_TYPE_FREESTYLE_FACE:
*r_threshold = true;
ret = true;
break;
}
}
return ret;
}
int BKE_object_data_transfer_get_dttypes_item_types(const int dtdata_types)
{
int i, ret = 0;
for (i = 0; (i < DT_TYPE_MAX) && (ret ^ (ME_VERT | ME_EDGE | ME_LOOP | ME_POLY)); i++) {
const int dtdata_type = 1 << i;
if (!(dtdata_types & dtdata_type)) {
continue;
}
if (DT_DATATYPE_IS_VERT(dtdata_type)) {
ret |= ME_VERT;
}
if (DT_DATATYPE_IS_EDGE(dtdata_type)) {
ret |= ME_EDGE;
}
if (DT_DATATYPE_IS_LOOP(dtdata_type)) {
ret |= ME_LOOP;
}
if (DT_DATATYPE_IS_POLY(dtdata_type)) {
ret |= ME_POLY;
}
}
return ret;
}
int BKE_object_data_transfer_dttype_to_cdtype(const int dtdata_type)
{
switch (dtdata_type) {
case DT_TYPE_MDEFORMVERT:
return CD_FAKE_MDEFORMVERT;
case DT_TYPE_SHAPEKEY:
return CD_FAKE_SHAPEKEY;
case DT_TYPE_SKIN:
return CD_MVERT_SKIN;
case DT_TYPE_BWEIGHT_VERT:
return CD_FAKE_BWEIGHT;
case DT_TYPE_SHARP_EDGE:
return CD_FAKE_SHARP;
case DT_TYPE_SEAM:
return CD_FAKE_SEAM;
case DT_TYPE_CREASE:
return CD_FAKE_CREASE;
case DT_TYPE_BWEIGHT_EDGE:
return CD_FAKE_BWEIGHT;
case DT_TYPE_FREESTYLE_EDGE:
return CD_FREESTYLE_EDGE;
case DT_TYPE_UV:
return CD_FAKE_UV;
case DT_TYPE_SHARP_FACE:
return CD_FAKE_SHARP;
case DT_TYPE_FREESTYLE_FACE:
return CD_FREESTYLE_FACE;
case DT_TYPE_VCOL:
return CD_MLOOPCOL;
case DT_TYPE_LNOR:
return CD_FAKE_LNOR;
default:
BLI_assert(0);
}
return 0; /* Should never be reached! */
}
int BKE_object_data_transfer_dttype_to_srcdst_index(const int dtdata_type)
{
switch (dtdata_type) {
case DT_TYPE_MDEFORMVERT:
return DT_MULTILAYER_INDEX_MDEFORMVERT;
case DT_TYPE_SHAPEKEY:
return DT_MULTILAYER_INDEX_SHAPEKEY;
case DT_TYPE_UV:
return DT_MULTILAYER_INDEX_UV;
case DT_TYPE_VCOL:
return DT_MULTILAYER_INDEX_VCOL;
default:
return DT_MULTILAYER_INDEX_INVALID;
}
}
/* ********** */
/* Generic pre/post processing, only used by custom loop normals currently. */
static void data_transfer_dtdata_type_preprocess(
Mesh *dm_src, Mesh *dm_dst,
const int dtdata_type, const bool dirty_nors_dst)
{
if (dtdata_type == DT_TYPE_LNOR) {
/* Compute custom normals into regular loop normals, which will be used for the transfer. */
MVert *verts_dst = dm_dst->mvert;
const int num_verts_dst = dm_dst->totvert;
MEdge *edges_dst = dm_dst->medge;
const int num_edges_dst = dm_dst->totedge;
MPoly *polys_dst = dm_dst->mpoly;
const int num_polys_dst = dm_dst->totpoly;
MLoop *loops_dst = dm_dst->mloop;
const int num_loops_dst = dm_dst->totloop;
CustomData *pdata_dst = &dm_dst->pdata;
CustomData *ldata_dst = &dm_dst->ldata;
const bool use_split_nors_dst = (dm_dst->flag & ME_AUTOSMOOTH) != 0;
const float split_angle_dst = dm_dst->smoothresh;
BKE_mesh_calc_normals_split(dm_src);
float (*poly_nors_dst)[3];
float (*loop_nors_dst)[3];
short (*custom_nors_dst)[2] = CustomData_get_layer(ldata_dst, CD_CUSTOMLOOPNORMAL);
/* Cache poly nors into a temp CDLayer. */
poly_nors_dst = CustomData_get_layer(pdata_dst, CD_NORMAL);
const bool do_poly_nors_dst = (poly_nors_dst == NULL);
if (do_poly_nors_dst) {
poly_nors_dst = CustomData_add_layer(pdata_dst, CD_NORMAL, CD_CALLOC, NULL, num_polys_dst);
CustomData_set_layer_flag(pdata_dst, CD_NORMAL, CD_FLAG_TEMPORARY);
}
if (dirty_nors_dst || do_poly_nors_dst) {
BKE_mesh_calc_normals_poly(
verts_dst, NULL, num_verts_dst, loops_dst, polys_dst,
num_loops_dst, num_polys_dst, poly_nors_dst, true);
}
/* Cache loop nors into a temp CDLayer. */
loop_nors_dst = CustomData_get_layer(ldata_dst, CD_NORMAL);
const bool do_loop_nors_dst = (loop_nors_dst == NULL);
if (do_loop_nors_dst) {
loop_nors_dst = CustomData_add_layer(ldata_dst, CD_NORMAL, CD_CALLOC, NULL, num_loops_dst);
CustomData_set_layer_flag(ldata_dst, CD_NORMAL, CD_FLAG_TEMPORARY);
}
if (dirty_nors_dst || do_loop_nors_dst) {
BKE_mesh_normals_loop_split(
verts_dst, num_verts_dst, edges_dst, num_edges_dst,
loops_dst, loop_nors_dst, num_loops_dst,
polys_dst, (const float (*)[3])poly_nors_dst, num_polys_dst,
use_split_nors_dst, split_angle_dst, NULL, custom_nors_dst, NULL);
}
}
}
static void data_transfer_dtdata_type_postprocess(
Object *UNUSED(ob_src), Object *UNUSED(ob_dst), Mesh *UNUSED(dm_src), Mesh *dm_dst, Mesh *me_dst,
const int dtdata_type, const bool changed)
{
if (dtdata_type == DT_TYPE_LNOR) {
/* Bake edited destination loop normals into custom normals again. */
MVert *verts_dst = dm_dst ? dm_dst->mvert : me_dst->mvert;
const int num_verts_dst = dm_dst ? dm_dst->totvert : me_dst->totvert;
MEdge *edges_dst = dm_dst ? dm_dst->medge : me_dst->medge;
const int num_edges_dst = dm_dst ? dm_dst->totedge : me_dst->totedge;
MPoly *polys_dst = dm_dst ? dm_dst->mpoly : me_dst->mpoly;
const int num_polys_dst = dm_dst ? dm_dst->totpoly : me_dst->totpoly;
MLoop *loops_dst = dm_dst ? dm_dst->mloop : me_dst->mloop;
const int num_loops_dst = dm_dst ? dm_dst->totloop : me_dst->totloop;
CustomData *pdata_dst = dm_dst ? &dm_dst->pdata : &me_dst->pdata;
CustomData *ldata_dst = dm_dst ? &dm_dst->ldata : &me_dst->ldata;
const float (*poly_nors_dst)[3] = CustomData_get_layer(pdata_dst, CD_NORMAL);
float (*loop_nors_dst)[3] = CustomData_get_layer(ldata_dst, CD_NORMAL);
short (*custom_nors_dst)[2] = CustomData_get_layer(ldata_dst, CD_CUSTOMLOOPNORMAL);
BLI_assert(poly_nors_dst);
if (!changed) {
return;
}
if (!custom_nors_dst) {
custom_nors_dst = CustomData_add_layer(ldata_dst, CD_CUSTOMLOOPNORMAL, CD_CALLOC, NULL, num_loops_dst);
}
/* Note loop_nors_dst contains our custom normals as transferred from source... */
BKE_mesh_normals_loop_custom_set(verts_dst, num_verts_dst, edges_dst, num_edges_dst,
loops_dst, loop_nors_dst, num_loops_dst,
polys_dst, poly_nors_dst, num_polys_dst,
custom_nors_dst);
}
}
/* ********** */
static MeshRemapIslandsCalc data_transfer_get_loop_islands_generator(const int cddata_type)
{
switch (cddata_type) {
case CD_FAKE_UV:
return BKE_mesh_calc_islands_loop_poly_edgeseam;
default:
break;
}
return NULL;
}
float data_transfer_interp_float_do(
const int mix_mode, const float val_dst, const float val_src, const float mix_factor)
{
float val_ret;
if (((mix_mode == CDT_MIX_REPLACE_ABOVE_THRESHOLD && (val_dst < mix_factor)) ||
(mix_mode == CDT_MIX_REPLACE_BELOW_THRESHOLD && (val_dst > mix_factor))))
{
return val_dst; /* Do not affect destination. */
}
switch (mix_mode) {
case CDT_MIX_REPLACE_ABOVE_THRESHOLD:
case CDT_MIX_REPLACE_BELOW_THRESHOLD:
return val_src;
case CDT_MIX_MIX:
val_ret = (val_dst + val_src) * 0.5f;
break;
case CDT_MIX_ADD:
val_ret = val_dst + val_src;
break;
case CDT_MIX_SUB:
val_ret = val_dst - val_src;
break;
case CDT_MIX_MUL:
val_ret = val_dst * val_src;
break;
case CDT_MIX_TRANSFER:
default:
val_ret = val_src;
break;
}
return interpf(val_ret, val_dst, mix_factor);
}
static void data_transfer_interp_char(
const CustomDataTransferLayerMap *laymap, void *dest,
const void **sources, const float *weights, const int count, const float mix_factor)
{
const char **data_src = (const char **)sources;
char *data_dst = (char *)dest;
const int mix_mode = laymap->mix_mode;
float val_src = 0.0f;
const float val_dst = (float)(*data_dst) / 255.0f;
int i;
for (i = count; i--;) {
val_src += ((float)(*data_src[i]) / 255.0f) * weights[i];
}
val_src = data_transfer_interp_float_do(mix_mode, val_dst, val_src, mix_factor);
CLAMP(val_src, 0.0f, 1.0f);
*data_dst = (char)(val_src * 255.0f);
}
/* Helpers to match sources and destinations data layers (also handles 'conversions' in CD_FAKE cases). */
void data_transfer_layersmapping_add_item(
ListBase *r_map, const int cddata_type, const int mix_mode, const float mix_factor, const float *mix_weights,
const void *data_src, void *data_dst, const int data_src_n, const int data_dst_n,
const size_t elem_size, const size_t data_size, const size_t data_offset, const uint64_t data_flag,
cd_datatransfer_interp interp, void *interp_data)
{
CustomDataTransferLayerMap *item = MEM_mallocN(sizeof(*item), __func__);
BLI_assert(data_dst != NULL);
item->data_type = cddata_type;
item->mix_mode = mix_mode;
item->mix_factor = mix_factor;
item->mix_weights = mix_weights;
item->data_src = data_src;
item->data_dst = data_dst;
item->data_src_n = data_src_n;
item->data_dst_n = data_dst_n;
item->elem_size = elem_size;
item->data_size = data_size;
item->data_offset = data_offset;
item->data_flag = data_flag;
item->interp = interp;
item->interp_data = interp_data;
BLI_addtail(r_map, item);
}
static void data_transfer_layersmapping_add_item_cd(
ListBase *r_map, const int cddata_type, const int mix_mode, const float mix_factor, const float *mix_weights,
void *data_src, void *data_dst, cd_datatransfer_interp interp, void *interp_data)
{
uint64_t data_flag = 0;
if (cddata_type == CD_FREESTYLE_EDGE) {
data_flag = FREESTYLE_EDGE_MARK;
}
else if (cddata_type == CD_FREESTYLE_FACE) {
data_flag = FREESTYLE_FACE_MARK;
}
data_transfer_layersmapping_add_item(
r_map, cddata_type, mix_mode, mix_factor, mix_weights, data_src, data_dst,
0, 0, 0, 0, 0, data_flag, interp, interp_data);
}
/* Note: All those layer mapping handlers return false *only* if they were given invalid parameters.
* This means that even if they do nothing, they will return true if all given parameters were OK.
* Also, r_map may be NULL, in which case they will 'only' create/delete destination layers according
* to given parameters.
*/
static bool data_transfer_layersmapping_cdlayers_multisrc_to_dst(
ListBase *r_map, const int cddata_type, const int mix_mode, const float mix_factor, const float *mix_weights,
const int num_elem_dst, const bool use_create, const bool use_delete,
CustomData *cd_src, CustomData *cd_dst, const bool use_dupref_dst,
const int tolayers, bool *use_layers_src, const int num_layers_src,
cd_datatransfer_interp interp, void *interp_data)
{
void *data_src, *data_dst = NULL;
int idx_src = num_layers_src;
int idx_dst, tot_dst = CustomData_number_of_layers(cd_dst, cddata_type);
bool *data_dst_to_delete = NULL;
if (!use_layers_src) {
/* No source at all, we can only delete all dest if requested... */
if (use_delete) {
idx_dst = tot_dst;
while (idx_dst--) {
CustomData_free_layer(cd_dst, cddata_type, num_elem_dst, idx_dst);
}
}
return true;
}
switch (tolayers) {
case DT_LAYERS_INDEX_DST:
idx_dst = tot_dst;
/* Find last source actually used! */
while (idx_src-- && !use_layers_src[idx_src]);
idx_src++;
if (idx_dst < idx_src) {
if (!use_create) {
return true;
}
/* Create as much data layers as necessary! */
for (; idx_dst < idx_src; idx_dst++) {
CustomData_add_layer(cd_dst, cddata_type, CD_CALLOC, NULL, num_elem_dst);
}
}
else if (use_delete && idx_dst > idx_src) {
while (idx_dst-- > idx_src) {
CustomData_free_layer(cd_dst, cddata_type, num_elem_dst, idx_dst);
}
}
if (r_map) {
while (idx_src--) {
if (!use_layers_src[idx_src]) {
continue;
}
data_src = CustomData_get_layer_n(cd_src, cddata_type, idx_src);
/* If dest is a derivedmesh, we do not want to overwrite cdlayers of org mesh! */
if (use_dupref_dst) {
data_dst = CustomData_duplicate_referenced_layer_n(cd_dst, cddata_type, idx_src, num_elem_dst);
}
else {
data_dst = CustomData_get_layer_n(cd_dst, cddata_type, idx_src);
}
data_transfer_layersmapping_add_item_cd(r_map, cddata_type, mix_mode, mix_factor, mix_weights,
data_src, data_dst, interp, interp_data);
}
}
break;
case DT_LAYERS_NAME_DST:
if (use_delete) {
if (tot_dst) {
data_dst_to_delete = MEM_mallocN(sizeof(*data_dst_to_delete) * (size_t)tot_dst, __func__);
memset(data_dst_to_delete, true, sizeof(*data_dst_to_delete) * (size_t)tot_dst);
}
}
while (idx_src--) {
const char *name;
if (!use_layers_src[idx_src]) {
continue;
}
name = CustomData_get_layer_name(cd_src, cddata_type, idx_src);
data_src = CustomData_get_layer_n(cd_src, cddata_type, idx_src);
if ((idx_dst = CustomData_get_named_layer(cd_dst, cddata_type, name)) == -1) {
if (!use_create) {
if (r_map) {
BLI_freelistN(r_map);
}
return true;
}
CustomData_add_layer_named(cd_dst, cddata_type, CD_CALLOC, NULL, num_elem_dst, name);
idx_dst = CustomData_get_named_layer(cd_dst, cddata_type, name);
}
else if (data_dst_to_delete) {
data_dst_to_delete[idx_dst] = false;
}
if (r_map) {
/* If dest is a derivedmesh, we do not want to overwrite cdlayers of org mesh! */
if (use_dupref_dst) {
data_dst = CustomData_duplicate_referenced_layer_n(cd_dst, cddata_type, idx_dst, num_elem_dst);
}
else {
data_dst = CustomData_get_layer_n(cd_dst, cddata_type, idx_dst);
}
data_transfer_layersmapping_add_item_cd(r_map, cddata_type, mix_mode, mix_factor, mix_weights,
data_src, data_dst, interp, interp_data);
}
}
if (data_dst_to_delete) {
/* Note: This won't affect newly created layers, if any, since tot_dst has not been updated!
* Also, looping backward ensures us we do not suffer from index shifting when deleting a layer.
*/
for (idx_dst = tot_dst; idx_dst--;) {
if (data_dst_to_delete[idx_dst]) {
CustomData_free_layer(cd_dst, cddata_type, num_elem_dst, idx_dst);
}
}
MEM_freeN(data_dst_to_delete);
}
break;
default:
return false;
}
return true;
}
static bool data_transfer_layersmapping_cdlayers(
ListBase *r_map, const int cddata_type, const int mix_mode, const float mix_factor, const float *mix_weights,
const int num_elem_dst, const bool use_create, const bool use_delete,
CustomData *cd_src, CustomData *cd_dst, const bool use_dupref_dst,
const int fromlayers, const int tolayers,
cd_datatransfer_interp interp, void *interp_data)
{
int idx_src, idx_dst;
void *data_src, *data_dst = NULL;
if (CustomData_layertype_is_singleton(cddata_type)) {
if (!(data_src = CustomData_get_layer(cd_src, cddata_type))) {
if (use_delete) {
CustomData_free_layer(cd_dst, cddata_type, num_elem_dst, 0);
}
return true;
}
data_dst = CustomData_get_layer(cd_dst, cddata_type);
if (!data_dst) {
if (!use_create) {
return true;
}
data_dst = CustomData_add_layer(cd_dst, cddata_type, CD_CALLOC, NULL, num_elem_dst);
}
else if (use_dupref_dst && r_map) {
/* If dest is a derivedmesh, we do not want to overwrite cdlayers of org mesh! */
data_dst = CustomData_duplicate_referenced_layer(cd_dst, cddata_type, num_elem_dst);
}
if (r_map) {
data_transfer_layersmapping_add_item_cd(r_map, cddata_type, mix_mode, mix_factor, mix_weights,
data_src, data_dst, interp, interp_data);
}
}
else if (fromlayers == DT_LAYERS_ACTIVE_SRC || fromlayers >= 0) {
/* Note: use_delete has not much meaning in this case, ignored. */
if (fromlayers >= 0) { /* Real-layer index */
idx_src = fromlayers;
}
else {
if ((idx_src = CustomData_get_active_layer(cd_src, cddata_type)) == -1) {
return true;
}
}
data_src = CustomData_get_layer_n(cd_src, cddata_type, idx_src);
if (!data_src) {
return true;
}
if (tolayers >= 0) { /* Real-layer index */
idx_dst = tolayers;
/* If dest is a derivedmesh, we do not want to overwrite cdlayers of org mesh! */
if (use_dupref_dst && r_map) {
data_dst = CustomData_duplicate_referenced_layer_n(cd_dst, cddata_type, idx_dst, num_elem_dst);
}
else {
data_dst = CustomData_get_layer_n(cd_dst, cddata_type, idx_dst);
}
}
else if (tolayers == DT_LAYERS_ACTIVE_DST) {
if ((idx_dst = CustomData_get_active_layer(cd_dst, cddata_type)) == -1) {
if (!use_create) {
return true;
}
data_dst = CustomData_add_layer(cd_dst, cddata_type, CD_CALLOC, NULL, num_elem_dst);
}
else {
/* If dest is a derivedmesh, we do not want to overwrite cdlayers of org mesh! */
if (use_dupref_dst && r_map) {
data_dst = CustomData_duplicate_referenced_layer_n(cd_dst, cddata_type, idx_dst, num_elem_dst);
}
else {
data_dst = CustomData_get_layer_n(cd_dst, cddata_type, idx_dst);
}
}
}
else if (tolayers == DT_LAYERS_INDEX_DST) {
int num = CustomData_number_of_layers(cd_dst, cddata_type);
idx_dst = idx_src;
if (num <= idx_dst) {
if (!use_create) {
return true;
}
/* Create as much data layers as necessary! */
for (; num <= idx_dst; num++) {
CustomData_add_layer(cd_dst, cddata_type, CD_CALLOC, NULL, num_elem_dst);
}
}
/* If dest is a derivedmesh, we do not want to overwrite cdlayers of org mesh! */
if (use_dupref_dst && r_map) {
data_dst = CustomData_duplicate_referenced_layer_n(cd_dst, cddata_type, idx_dst, num_elem_dst);
}
else {
data_dst = CustomData_get_layer_n(cd_dst, cddata_type, idx_dst);
}
}
else if (tolayers == DT_LAYERS_NAME_DST) {
const char *name = CustomData_get_layer_name(cd_src, cddata_type, idx_src);
if ((idx_dst = CustomData_get_named_layer(cd_dst, cddata_type, name)) == -1) {
if (!use_create) {
return true;
}
CustomData_add_layer_named(cd_dst, cddata_type, CD_CALLOC, NULL, num_elem_dst, name);
idx_dst = CustomData_get_named_layer(cd_dst, cddata_type, name);
}
/* If dest is a derivedmesh, we do not want to overwrite cdlayers of org mesh! */
if (use_dupref_dst && r_map) {
data_dst = CustomData_duplicate_referenced_layer_n(cd_dst, cddata_type, idx_dst, num_elem_dst);
}
else {
data_dst = CustomData_get_layer_n(cd_dst, cddata_type, idx_dst);
}
}
else {
return false;
}
if (!data_dst) {
return false;
}
if (r_map) {
data_transfer_layersmapping_add_item_cd(
r_map, cddata_type, mix_mode, mix_factor, mix_weights, data_src, data_dst, interp, interp_data);
}
}
else if (fromlayers == DT_LAYERS_ALL_SRC) {
int num_src = CustomData_number_of_layers(cd_src, cddata_type);
bool *use_layers_src = num_src ? MEM_mallocN(sizeof(*use_layers_src) * (size_t)num_src, __func__) : NULL;
bool ret;
if (use_layers_src) {
memset(use_layers_src, true, sizeof(*use_layers_src) * num_src);
}
ret = data_transfer_layersmapping_cdlayers_multisrc_to_dst(
r_map, cddata_type, mix_mode, mix_factor, mix_weights,
num_elem_dst, use_create, use_delete, cd_src, cd_dst, use_dupref_dst,
tolayers, use_layers_src, num_src,
interp, interp_data);
if (use_layers_src) {
MEM_freeN(use_layers_src);
}
return ret;
}
else {
return false;
}
return true;
}
static bool data_transfer_layersmapping_generate(
ListBase *r_map, Object *ob_src, Object *ob_dst, Mesh *dm_src, Mesh *dm_dst, Mesh *me_dst,
const int elem_type, int cddata_type, int mix_mode, float mix_factor, const float *mix_weights,
const int num_elem_dst, const bool use_create, const bool use_delete, const int fromlayers, const int tolayers,
SpaceTransform *space_transform)
{
CustomData *cd_src, *cd_dst;
cd_datatransfer_interp interp = NULL;
void *interp_data = NULL;
if (elem_type == ME_VERT) {
if (!(cddata_type & CD_FAKE)) {
cd_src = &dm_src->vdata;
cd_dst = dm_dst ? &dm_dst->vdata : &me_dst->vdata;
if (!data_transfer_layersmapping_cdlayers(r_map, cddata_type, mix_mode, mix_factor, mix_weights,
num_elem_dst, use_create, use_delete,
cd_src, cd_dst, dm_dst != NULL,
fromlayers, tolayers,
interp, interp_data))
{
/* We handle specific source selection cases here. */
return false;
}
return true;
}
else if (cddata_type == CD_FAKE_BWEIGHT) {
const size_t elem_size = sizeof(*((MVert *)NULL));
const size_t data_size = sizeof(((MVert *)NULL)->bweight);
const size_t data_offset = offsetof(MVert, bweight);
const uint64_t data_flag = 0;
if (!(dm_src->cd_flag & ME_CDFLAG_VERT_BWEIGHT)) {
if (use_delete && !dm_dst) {
me_dst->cd_flag &= ~ME_CDFLAG_VERT_BWEIGHT;
}
return true;
}
if (dm_dst) {
dm_dst->cd_flag |= ME_CDFLAG_VERT_BWEIGHT;
}
else {
me_dst->cd_flag |= ME_CDFLAG_VERT_BWEIGHT;
}
if (r_map) {
data_transfer_layersmapping_add_item(r_map, cddata_type, mix_mode, mix_factor, mix_weights,
dm_src->mvert,
dm_dst ? dm_dst->mvert : me_dst->mvert,
dm_src->totvert,
dm_dst ? dm_dst->totvert : me_dst->totvert,
elem_size, data_size, data_offset, data_flag,
data_transfer_interp_char, interp_data);
}
return true;
}
else if (cddata_type == CD_FAKE_MDEFORMVERT) {
bool ret;
cd_src = &dm_src->vdata;
cd_dst = dm_dst ? &dm_dst->vdata : &me_dst->vdata;
ret = data_transfer_layersmapping_vgroups(r_map, mix_mode, mix_factor, mix_weights,
num_elem_dst, use_create, use_delete,
ob_src, ob_dst, cd_src, cd_dst, dm_dst != NULL,
fromlayers, tolayers);
/* Mesh stores its dvert in a specific pointer too. :( */
me_dst->dvert = CustomData_get_layer(&me_dst->vdata, CD_MDEFORMVERT);
return ret;
}
else if (cddata_type == CD_FAKE_SHAPEKEY) {
/* TODO: leaving shapekeys asside for now, quite specific case, since we can't access them from MVert :/ */
return false;
}
}
else if (elem_type == ME_EDGE) {
if (!(cddata_type & CD_FAKE)) { /* Unused for edges, currently... */
cd_src = &dm_src->edata;
cd_dst = dm_dst ? &dm_dst->edata : &me_dst->edata;
if (!data_transfer_layersmapping_cdlayers(r_map, cddata_type, mix_mode, mix_factor, mix_weights,
num_elem_dst, use_create, use_delete,
cd_src, cd_dst, dm_dst != NULL,
fromlayers, tolayers,
interp, interp_data))
{
/* We handle specific source selection cases here. */
return false;
}
return true;
}
else if (cddata_type == CD_FAKE_CREASE) {
const size_t elem_size = sizeof(*((MEdge *)NULL));
const size_t data_size = sizeof(((MEdge *)NULL)->crease);
const size_t data_offset = offsetof(MEdge, crease);
const uint64_t data_flag = 0;
if (!(dm_src->cd_flag & ME_CDFLAG_EDGE_CREASE)) {
if (use_delete && !dm_dst) {
me_dst->cd_flag &= ~ME_CDFLAG_EDGE_CREASE;
}
return true;
}
if (dm_dst) {
dm_dst->cd_flag |= ME_CDFLAG_EDGE_CREASE;
}
else {
me_dst->cd_flag |= ME_CDFLAG_EDGE_CREASE;
}
if (r_map) {
data_transfer_layersmapping_add_item(r_map, cddata_type, mix_mode, mix_factor, mix_weights,
dm_src->medge,
dm_dst ? dm_dst->medge : me_dst->medge,
dm_src->totedge,
dm_dst ? dm_dst->totedge : me_dst->totedge,
elem_size, data_size, data_offset, data_flag,
data_transfer_interp_char, interp_data);
}
return true;
}
else if (cddata_type == CD_FAKE_BWEIGHT) {
const size_t elem_size = sizeof(*((MEdge *)NULL));
const size_t data_size = sizeof(((MEdge *)NULL)->bweight);
const size_t data_offset = offsetof(MEdge, bweight);
const uint64_t data_flag = 0;
if (!(dm_src->cd_flag & ME_CDFLAG_EDGE_BWEIGHT)) {
if (use_delete && !dm_dst) {
me_dst->cd_flag &= ~ME_CDFLAG_EDGE_BWEIGHT;
}
return true;
}
if (dm_dst) {
dm_dst->cd_flag |= ME_CDFLAG_EDGE_BWEIGHT;
}
else {
me_dst->cd_flag |= ME_CDFLAG_EDGE_BWEIGHT;
}
if (r_map) {
data_transfer_layersmapping_add_item(r_map, cddata_type, mix_mode, mix_factor, mix_weights,
dm_src->medge,
dm_dst ? dm_dst->medge : me_dst->medge,
dm_src->totedge,
dm_dst ? dm_dst->totedge : me_dst->totedge,
elem_size, data_size, data_offset, data_flag,
data_transfer_interp_char, interp_data);
}
return true;
}
else if (r_map && ELEM(cddata_type, CD_FAKE_SHARP, CD_FAKE_SEAM)) {
const size_t elem_size = sizeof(*((MEdge *)NULL));
const size_t data_size = sizeof(((MEdge *)NULL)->flag);
const size_t data_offset = offsetof(MEdge, flag);
const uint64_t data_flag = (cddata_type == CD_FAKE_SHARP) ? ME_SHARP : ME_SEAM;
data_transfer_layersmapping_add_item(
r_map, cddata_type, mix_mode, mix_factor, mix_weights,
dm_src->medge,
dm_dst ? dm_dst->medge : me_dst->medge,
dm_src->totedge,
dm_dst ? dm_dst->totedge : me_dst->totedge,
elem_size, data_size, data_offset, data_flag, NULL, interp_data);
return true;
}
else {
return false;
}
}
else if (elem_type == ME_LOOP) {
if (cddata_type == CD_FAKE_UV) {
cddata_type = CD_MLOOPUV;
}
else if (cddata_type == CD_FAKE_LNOR) {
/* Preprocess should have generated it, Postprocess will convert it back to CD_CUSTOMLOOPNORMAL. */
cddata_type = CD_NORMAL;
interp_data = space_transform;
interp = customdata_data_transfer_interp_normal_normals;
}
if (!(cddata_type & CD_FAKE)) {
cd_src = &dm_src->ldata;
cd_dst = dm_dst ? &dm_dst->ldata : &me_dst->ldata;
if (!data_transfer_layersmapping_cdlayers(
r_map, cddata_type, mix_mode, mix_factor, mix_weights,
num_elem_dst, use_create, use_delete, cd_src, cd_dst, dm_dst != NULL,
fromlayers, tolayers,
interp, interp_data))
{
/* We handle specific source selection cases here. */
return false;
}
return true;
}
else {
return false;
}
}
else if (elem_type == ME_POLY) {
if (cddata_type == CD_FAKE_UV) {
cddata_type = CD_MLOOPUV;
}
if (!(cddata_type & CD_FAKE)) {
cd_src = &dm_src->pdata;
cd_dst = dm_dst ? &dm_dst->pdata : &me_dst->pdata;
if (!data_transfer_layersmapping_cdlayers(
r_map, cddata_type, mix_mode, mix_factor, mix_weights,
num_elem_dst, use_create, use_delete, cd_src, cd_dst, dm_dst != NULL,
fromlayers, tolayers,
interp, interp_data))
{
/* We handle specific source selection cases here. */
return false;
}
return true;
}
else if (r_map && cddata_type == CD_FAKE_SHARP) {
const size_t elem_size = sizeof(*((MPoly *)NULL));
const size_t data_size = sizeof(((MPoly *)NULL)->flag);
const size_t data_offset = offsetof(MPoly, flag);
const uint64_t data_flag = ME_SMOOTH;
data_transfer_layersmapping_add_item(
r_map, cddata_type, mix_mode, mix_factor, mix_weights,
dm_src->mpoly,
dm_dst ? dm_dst->mpoly : me_dst->mpoly,
dm_src->totpoly,
dm_dst ? dm_dst->totpoly : me_dst->totpoly,
elem_size, data_size, data_offset, data_flag, NULL, interp_data);
return true;
}
else {
return false;
}
}
return false;
}
/**
* Transfer data *layout* of selected types from source to destination object.
* By default, it only creates new data layers if needed on \a ob_dst.
* If \a use_delete is true, it will also delete data layers on \a ob_dst that do not match those from \a ob_src,
* to get (as much as possible) exact copy of source data layout.
*/
void BKE_object_data_transfer_layout(
struct Depsgraph *depsgraph, Scene *scene,
Object *ob_src, Object *ob_dst, const int data_types, const bool use_delete,
const int fromlayers_select[DT_MULTILAYER_INDEX_MAX], const int tolayers_select[DT_MULTILAYER_INDEX_MAX])
{
Mesh *dm_src;
Mesh *me_dst;
int i;
const bool use_create = true; /* We always create needed layers here. */
CustomDataMask dm_src_mask = CD_MASK_BAREMESH;
BLI_assert((ob_src != ob_dst) && (ob_src->type == OB_MESH) && (ob_dst->type == OB_MESH));
me_dst = ob_dst->data;
/* Get source DM.*/
dm_src_mask |= BKE_object_data_transfer_dttypes_to_cdmask(data_types);
dm_src = mesh_get_eval_final(depsgraph, scene, ob_src, dm_src_mask);
if (!dm_src) {
return;
}
/* Check all possible data types. */
for (i = 0; i < DT_TYPE_MAX; i++) {
const int dtdata_type = 1 << i;
int cddata_type;
int fromlayers, tolayers, fromto_idx;
if (!(data_types & dtdata_type)) {
continue;
}
cddata_type = BKE_object_data_transfer_dttype_to_cdtype(dtdata_type);
fromto_idx = BKE_object_data_transfer_dttype_to_srcdst_index(dtdata_type);
if (fromto_idx != DT_MULTILAYER_INDEX_INVALID) {
fromlayers = fromlayers_select[fromto_idx];
tolayers = tolayers_select[fromto_idx];
}
else {
fromlayers = tolayers = 0;
}
if (DT_DATATYPE_IS_VERT(dtdata_type)) {
const int num_elem_dst = me_dst->totvert;
data_transfer_layersmapping_generate(
NULL, ob_src, ob_dst, dm_src, NULL, me_dst, ME_VERT, cddata_type, 0, 0.0f, NULL,
num_elem_dst, use_create, use_delete, fromlayers, tolayers, NULL);
}
if (DT_DATATYPE_IS_EDGE(dtdata_type)) {
const int num_elem_dst = me_dst->totedge;
data_transfer_layersmapping_generate(
NULL, ob_src, ob_dst, dm_src, NULL, me_dst, ME_EDGE, cddata_type, 0, 0.0f, NULL,
num_elem_dst, use_create, use_delete, fromlayers, tolayers, NULL);
}
if (DT_DATATYPE_IS_LOOP(dtdata_type)) {
const int num_elem_dst = me_dst->totloop;
data_transfer_layersmapping_generate(
NULL, ob_src, ob_dst, dm_src, NULL, me_dst, ME_LOOP, cddata_type, 0, 0.0f, NULL,
num_elem_dst, use_create, use_delete, fromlayers, tolayers, NULL);
}
if (DT_DATATYPE_IS_POLY(dtdata_type)) {
const int num_elem_dst = me_dst->totpoly;
data_transfer_layersmapping_generate(
NULL, ob_src, ob_dst, dm_src, NULL, me_dst, ME_POLY, cddata_type, 0, 0.0f, NULL,
num_elem_dst, use_create, use_delete, fromlayers, tolayers, NULL);
}
}
}
bool BKE_object_data_transfer_dm(
struct Depsgraph *depsgraph, Scene *scene, Object *ob_src, Object *ob_dst, Mesh *dm_dst,
const int data_types, bool use_create, const int map_vert_mode, const int map_edge_mode,
const int map_loop_mode, const int map_poly_mode, SpaceTransform *space_transform, const bool auto_transform,
const float max_distance, const float ray_radius, const float islands_handling_precision,
const int fromlayers_select[DT_MULTILAYER_INDEX_MAX], const int tolayers_select[DT_MULTILAYER_INDEX_MAX],
const int mix_mode, const float mix_factor, const char *vgroup_name, const bool invert_vgroup,
ReportList *reports)
{
#define VDATA 0
#define EDATA 1
#define LDATA 2
#define PDATA 3
#define DATAMAX 4
SpaceTransform auto_space_transform;
Mesh *dm_src;
Mesh *me_dst;
bool dirty_nors_dst = true; /* Assumed always true if not using a dm as destination. */
int i;
MDeformVert *mdef = NULL;
int vg_idx = -1;
float *weights[DATAMAX] = {NULL};
MeshPairRemap geom_map[DATAMAX] = {{0}};
bool geom_map_init[DATAMAX] = {0};
ListBase lay_map = {NULL};
bool changed = false;
const bool use_delete = false; /* We never delete data layers from destination here. */
CustomDataMask dm_src_mask = CD_MASK_BAREMESH;
BLI_assert((ob_src != ob_dst) && (ob_src->type == OB_MESH) && (ob_dst->type == OB_MESH));
me_dst = ob_dst->data;
if (dm_dst) {
dirty_nors_dst = (dm_dst->runtime.cd_dirty_vert & CD_NORMAL) != 0;
/* Never create needed custom layers on passed destination mesh
* (assumed to *not* be ob_dst->data, aka modifier case). */
use_create = false;
}
if (vgroup_name) {
if (dm_dst) {
mdef = CustomData_get_layer(&dm_dst->vdata, CD_MDEFORMVERT);
}
else {
mdef = CustomData_get_layer(&me_dst->vdata, CD_MDEFORMVERT);
}
if (mdef) {
vg_idx = defgroup_name_index(ob_dst, vgroup_name);
}
}
/* Get source DM.*/
dm_src_mask |= BKE_object_data_transfer_dttypes_to_cdmask(data_types);
/* XXX Hack! In case this is being evaluated from dm stack, we cannot compute final dm,
* can lead to infinite recursion in case of dependency cycles of DataTransfer modifiers...
* Issue is, this means we cannot be sure to have requested cd layers in source.
*
* Also, we need to make a local copy of dm_src, otherwise we may end with concurrent creation
* of data in it (multi-threaded evaluation of the modifier stack, see T46672).
*/
/* XXX TODO new depsgraph shall always ensure we have that src evaluated mesh built before this point, now, I think? */
dm_src = dm_dst ? ob_src->runtime.mesh_eval : mesh_get_eval_final(depsgraph, scene, ob_src, dm_src_mask);
if (!dm_src) {
return changed;
}
// dm_src = CDDM_copy(dm_src);
if (auto_transform) {
MVert *verts_dst = dm_dst ? dm_dst->mvert : me_dst->mvert;
const int num_verts_dst = dm_dst ? dm_dst->totvert : me_dst->totvert;
if (space_transform == NULL) {
space_transform = &auto_space_transform;
}
BKE_mesh_remap_find_best_match_from_dm(verts_dst, num_verts_dst, dm_src, space_transform);
}
/* Check all possible data types.
* Note item mappings and dest mix weights are cached. */
for (i = 0; i < DT_TYPE_MAX; i++) {
const int dtdata_type = 1 << i;
int cddata_type;
int fromlayers, tolayers, fromto_idx;
if (!(data_types & dtdata_type)) {
continue;
}
data_transfer_dtdata_type_preprocess(
dm_src, dm_dst ? dm_dst : me_dst, dtdata_type, dirty_nors_dst);
cddata_type = BKE_object_data_transfer_dttype_to_cdtype(dtdata_type);
fromto_idx = BKE_object_data_transfer_dttype_to_srcdst_index(dtdata_type);
if (fromto_idx != DT_MULTILAYER_INDEX_INVALID) {
fromlayers = fromlayers_select[fromto_idx];
tolayers = tolayers_select[fromto_idx];
}
else {
fromlayers = tolayers = 0;
}
if (DT_DATATYPE_IS_VERT(dtdata_type)) {
MVert *verts_dst = dm_dst ? dm_dst->mvert : me_dst->mvert;
const int num_verts_dst = dm_dst ? dm_dst->totvert : me_dst->totvert;
if (!geom_map_init[VDATA]) {
const int num_verts_src = dm_src->totvert;
if ((map_vert_mode == MREMAP_MODE_TOPOLOGY) && (num_verts_dst != num_verts_src)) {
BKE_report(reports, RPT_ERROR,
"Source and destination meshes do not have the same amount of vertices, "
"'Topology' mapping cannot be used in this case");
continue;
}
if ((map_vert_mode & MREMAP_USE_EDGE) && (dm_src->totedge == 0)) {
BKE_report(reports, RPT_ERROR,
"Source mesh doesn't have any edges, "
"None of the 'Edge' mappings can be used in this case");
continue;
}
if ((map_vert_mode & MREMAP_USE_POLY) && (dm_src->totpoly == 0)) {
BKE_report(reports, RPT_ERROR,
"Source mesh doesn't have any faces, "
"None of the 'Face' mappings can be used in this case");
continue;
}
if (ELEM(0, num_verts_dst, num_verts_src)) {
BKE_report(reports, RPT_ERROR,
"Source or destination meshes do not have any vertices, cannot transfer vertex data");
continue;
}
BKE_mesh_remap_calc_verts_from_dm(
map_vert_mode, space_transform, max_distance, ray_radius,
verts_dst, num_verts_dst, dirty_nors_dst, dm_src, &geom_map[VDATA]);
geom_map_init[VDATA] = true;
}
if (mdef && vg_idx != -1 && !weights[VDATA]) {
weights[VDATA] = MEM_mallocN(sizeof(*(weights[VDATA])) * (size_t)num_verts_dst, __func__);
BKE_defvert_extract_vgroup_to_vertweights(mdef, vg_idx, num_verts_dst, weights[VDATA], invert_vgroup);
}
if (data_transfer_layersmapping_generate(
&lay_map, ob_src, ob_dst, dm_src, dm_dst, me_dst, ME_VERT,
cddata_type, mix_mode, mix_factor, weights[VDATA],
num_verts_dst, use_create, use_delete, fromlayers, tolayers, space_transform))
{
CustomDataTransferLayerMap *lay_mapit;
changed = (lay_map.first != NULL);
for (lay_mapit = lay_map.first; lay_mapit; lay_mapit = lay_mapit->next) {
CustomData_data_transfer(&geom_map[VDATA], lay_mapit);
}
BLI_freelistN(&lay_map);
}
}
if (DT_DATATYPE_IS_EDGE(dtdata_type)) {
MVert *verts_dst = dm_dst ? dm_dst->mvert : me_dst->mvert;
const int num_verts_dst = dm_dst ? dm_dst->totvert : me_dst->totvert;
MEdge *edges_dst = dm_dst ? dm_dst->medge : me_dst->medge;
const int num_edges_dst = dm_dst ? dm_dst->totedge : me_dst->totedge;
if (!geom_map_init[EDATA]) {
const int num_edges_src = dm_src->totedge;
if ((map_edge_mode == MREMAP_MODE_TOPOLOGY) && (num_edges_dst != num_edges_src)) {
BKE_report(reports, RPT_ERROR,
"Source and destination meshes do not have the same amount of edges, "
"'Topology' mapping cannot be used in this case");
continue;
}
if ((map_edge_mode & MREMAP_USE_POLY) && (dm_src->totpoly == 0)) {
BKE_report(reports, RPT_ERROR,
"Source mesh doesn't have any faces, "
"None of the 'Face' mappings can be used in this case");
continue;
}
if (ELEM(0, num_edges_dst, num_edges_src)) {
BKE_report(reports, RPT_ERROR,
"Source or destination meshes do not have any edges, cannot transfer edge data");
continue;
}
BKE_mesh_remap_calc_edges_from_dm(
map_edge_mode, space_transform, max_distance, ray_radius,
verts_dst, num_verts_dst, edges_dst, num_edges_dst, dirty_nors_dst,
dm_src, &geom_map[EDATA]);
geom_map_init[EDATA] = true;
}
if (mdef && vg_idx != -1 && !weights[EDATA]) {
weights[EDATA] = MEM_mallocN(sizeof(*weights[EDATA]) * (size_t)num_edges_dst, __func__);
BKE_defvert_extract_vgroup_to_edgeweights(
mdef, vg_idx, num_verts_dst, edges_dst, num_edges_dst,
weights[EDATA], invert_vgroup);
}
if (data_transfer_layersmapping_generate(
&lay_map, ob_src, ob_dst, dm_src, dm_dst, me_dst, ME_EDGE,
cddata_type, mix_mode, mix_factor, weights[EDATA],
num_edges_dst, use_create, use_delete, fromlayers, tolayers, space_transform))
{
CustomDataTransferLayerMap *lay_mapit;
changed = (lay_map.first != NULL);
for (lay_mapit = lay_map.first; lay_mapit; lay_mapit = lay_mapit->next) {
CustomData_data_transfer(&geom_map[EDATA], lay_mapit);
}
BLI_freelistN(&lay_map);
}
}
if (DT_DATATYPE_IS_LOOP(dtdata_type)) {
MVert *verts_dst = dm_dst ? dm_dst->mvert : me_dst->mvert;
const int num_verts_dst = dm_dst ? dm_dst->totvert : me_dst->totvert;
MEdge *edges_dst = dm_dst ? dm_dst->medge : me_dst->medge;
const int num_edges_dst = dm_dst ? dm_dst->totedge : me_dst->totedge;
MPoly *polys_dst = dm_dst ? dm_dst->mpoly : me_dst->mpoly;
const int num_polys_dst = dm_dst ? dm_dst->totpoly : me_dst->totpoly;
MLoop *loops_dst = dm_dst ? dm_dst->mloop : me_dst->mloop;
const int num_loops_dst = dm_dst ? dm_dst->totloop : me_dst->totloop;
CustomData *pdata_dst = dm_dst ? &dm_dst->pdata : &me_dst->pdata;
CustomData *ldata_dst = dm_dst ? &dm_dst->ldata : &me_dst->ldata;
MeshRemapIslandsCalc island_callback = data_transfer_get_loop_islands_generator(cddata_type);
if (!geom_map_init[LDATA]) {
const int num_loops_src = dm_src->totloop;
if ((map_loop_mode == MREMAP_MODE_TOPOLOGY) && (num_loops_dst != num_loops_src)) {
BKE_report(reports, RPT_ERROR,
"Source and destination meshes do not have the same amount of face corners, "
"'Topology' mapping cannot be used in this case");
continue;
}
if ((map_loop_mode & MREMAP_USE_EDGE) && (dm_src->totedge == 0)) {
BKE_report(reports, RPT_ERROR,
"Source mesh doesn't have any edges, "
"None of the 'Edge' mappings can be used in this case");
continue;
}
if (ELEM(0, num_loops_dst, num_loops_src)) {
BKE_report(reports, RPT_ERROR,
"Source or destination meshes do not have any faces, cannot transfer corner data");
continue;
}
BKE_mesh_remap_calc_loops_from_dm(
map_loop_mode, space_transform, max_distance, ray_radius,
verts_dst, num_verts_dst, edges_dst, num_edges_dst,
loops_dst, num_loops_dst, polys_dst, num_polys_dst,
ldata_dst, pdata_dst,
((dm_dst ? dm_dst : me_dst)->flag & ME_AUTOSMOOTH) != 0, (dm_dst ? dm_dst : me_dst)->smoothresh, dirty_nors_dst,
dm_src,
island_callback, islands_handling_precision, &geom_map[LDATA]);
geom_map_init[LDATA] = true;
}
if (mdef && vg_idx != -1 && !weights[LDATA]) {
weights[LDATA] = MEM_mallocN(sizeof(*weights[LDATA]) * (size_t)num_loops_dst, __func__);
BKE_defvert_extract_vgroup_to_loopweights(
mdef, vg_idx, num_verts_dst, loops_dst, num_loops_dst,
weights[LDATA], invert_vgroup);
}
if (data_transfer_layersmapping_generate(
&lay_map, ob_src, ob_dst, dm_src, dm_dst, me_dst, ME_LOOP,
cddata_type, mix_mode, mix_factor, weights[LDATA],
num_loops_dst, use_create, use_delete, fromlayers, tolayers, space_transform))
{
CustomDataTransferLayerMap *lay_mapit;
changed = (lay_map.first != NULL);
for (lay_mapit = lay_map.first; lay_mapit; lay_mapit = lay_mapit->next) {
CustomData_data_transfer(&geom_map[LDATA], lay_mapit);
}
BLI_freelistN(&lay_map);
}
}
if (DT_DATATYPE_IS_POLY(dtdata_type)) {
MVert *verts_dst = dm_dst ? dm_dst->mvert : me_dst->mvert;
const int num_verts_dst = dm_dst ? dm_dst->totvert : me_dst->totvert;
MPoly *polys_dst = dm_dst ? dm_dst->mpoly : me_dst->mpoly;
const int num_polys_dst = dm_dst ? dm_dst->totpoly : me_dst->totpoly;
MLoop *loops_dst = dm_dst ? dm_dst->mloop : me_dst->mloop;
const int num_loops_dst = dm_dst ? dm_dst->totloop : me_dst->totloop;
CustomData *pdata_dst = dm_dst ? &dm_dst->pdata : &me_dst->pdata;
if (!geom_map_init[PDATA]) {
const int num_polys_src = dm_src->totpoly;
if ((map_poly_mode == MREMAP_MODE_TOPOLOGY) && (num_polys_dst != num_polys_src)) {
BKE_report(reports, RPT_ERROR,
"Source and destination meshes do not have the same amount of faces, "
"'Topology' mapping cannot be used in this case");
continue;
}
if ((map_poly_mode & MREMAP_USE_EDGE) && (dm_src->totedge == 0)) {
BKE_report(reports, RPT_ERROR,
"Source mesh doesn't have any edges, "
"None of the 'Edge' mappings can be used in this case");
continue;
}
if (ELEM(0, num_polys_dst, num_polys_src)) {
BKE_report(reports, RPT_ERROR,
"Source or destination meshes do not have any faces, cannot transfer face data");
continue;
}
BKE_mesh_remap_calc_polys_from_dm(
map_poly_mode, space_transform, max_distance, ray_radius,
verts_dst, num_verts_dst, loops_dst, num_loops_dst,
polys_dst, num_polys_dst, pdata_dst, dirty_nors_dst,
dm_src, &geom_map[PDATA]);
geom_map_init[PDATA] = true;
}
if (mdef && vg_idx != -1 && !weights[PDATA]) {
weights[PDATA] = MEM_mallocN(sizeof(*weights[PDATA]) * (size_t)num_polys_dst, __func__);
BKE_defvert_extract_vgroup_to_polyweights(
mdef, vg_idx, num_verts_dst, loops_dst, num_loops_dst,
polys_dst, num_polys_dst, weights[PDATA], invert_vgroup);
}
if (data_transfer_layersmapping_generate(
&lay_map, ob_src, ob_dst, dm_src, dm_dst, me_dst, ME_POLY,
cddata_type, mix_mode, mix_factor, weights[PDATA],
num_polys_dst, use_create, use_delete, fromlayers, tolayers, space_transform))
{
CustomDataTransferLayerMap *lay_mapit;
changed = (lay_map.first != NULL);
for (lay_mapit = lay_map.first; lay_mapit; lay_mapit = lay_mapit->next) {
CustomData_data_transfer(&geom_map[PDATA], lay_mapit);
}
BLI_freelistN(&lay_map);
}
}
data_transfer_dtdata_type_postprocess(ob_src, ob_dst, dm_src, dm_dst, me_dst, dtdata_type, changed);
}
for (i = 0; i < DATAMAX; i++) {
BKE_mesh_remap_free(&geom_map[i]);
MEM_SAFE_FREE(weights[i]);
}
// dm_src->release(dm_src);
return changed;
#undef VDATA
#undef EDATA
#undef LDATA
#undef PDATA
#undef DATAMAX
}
bool BKE_object_data_transfer_mesh(
struct Depsgraph *depsgraph, Scene *scene, Object *ob_src, Object *ob_dst, const int data_types,
const bool use_create, const int map_vert_mode, const int map_edge_mode, const int map_loop_mode,
const int map_poly_mode, SpaceTransform *space_transform, const bool auto_transform,
const float max_distance, const float ray_radius, const float islands_handling_precision,
const int fromlayers_select[DT_MULTILAYER_INDEX_MAX], const int tolayers_select[DT_MULTILAYER_INDEX_MAX],
const int mix_mode, const float mix_factor, const char *vgroup_name, const bool invert_vgroup,
ReportList *reports)
{
return BKE_object_data_transfer_dm(
depsgraph, scene, ob_src, ob_dst, NULL, data_types, use_create,
map_vert_mode, map_edge_mode, map_loop_mode, map_poly_mode,
space_transform, auto_transform,
max_distance, ray_radius, islands_handling_precision,
fromlayers_select, tolayers_select,
mix_mode, mix_factor, vgroup_name, invert_vgroup, reports);
}
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