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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup edmesh
*/
#include "MEM_guardedalloc.h"
#include "BLI_bitmap.h"
#include "BLI_blenlib.h"
#include "BLI_math.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "BKE_context.h"
#include "BKE_customdata.h"
#include "BKE_global.h"
#include "BKE_mesh.h"
#include "BKE_object.h"
#include "ED_mesh.h"
#include "ED_screen.h"
#include "ED_select_utils.h"
#include "ED_view3d.h"
#include "WM_api.h"
#include "WM_types.h"
#include "DEG_depsgraph.h"
#include "DEG_depsgraph_query.h"
/* own include */
void paintface_flush_flags(struct bContext *C, Object *ob, short flag)
{
Mesh *me = BKE_mesh_from_object(ob);
MPoly *polys, *mp_orig;
const int *index_array = NULL;
int totpoly;
BLI_assert((flag & ~(SELECT | ME_HIDE)) == 0);
if (me == NULL) {
return;
}
/* NOTE: call #BKE_mesh_flush_hidden_from_verts_ex first when changing hidden flags. */
/* we could call this directly in all areas that change selection,
* since this could become slow for realtime updates (circle-select for eg) */
if (flag & SELECT) {
BKE_mesh_flush_select_from_polys(me);
}
Depsgraph *depsgraph = CTX_data_ensure_evaluated_depsgraph(C);
Object *ob_eval = DEG_get_evaluated_object(depsgraph, ob);
if (ob_eval == NULL) {
return;
}
Mesh *me_orig = (Mesh *)ob_eval->runtime.data_orig;
Mesh *me_eval = (Mesh *)ob_eval->runtime.data_eval;
bool updated = false;
if (me_orig != NULL && me_eval != NULL && me_orig->totpoly == me->totpoly) {
/* Update the COW copy of the mesh. */
for (int i = 0; i < me->totpoly; i++) {
me_orig->mpoly[i].flag = me->mpoly[i].flag;
}
/* If the mesh has only deform modifiers, the evaluated mesh shares arrays. */
if (me_eval->mpoly == me_orig->mpoly) {
updated = true;
}
/* Mesh polys => Final derived polys */
else if ((index_array = CustomData_get_layer(&me_eval->pdata, CD_ORIGINDEX))) {
polys = me_eval->mpoly;
totpoly = me_eval->totpoly;
/* loop over final derived polys */
for (int i = 0; i < totpoly; i++) {
if (index_array[i] != ORIGINDEX_NONE) {
/* Copy flags onto the final derived poly from the original mesh poly */
mp_orig = me->mpoly + index_array[i];
polys[i].flag = mp_orig->flag;
}
}
updated = true;
}
}
if (updated) {
if (flag & ME_HIDE) {
BKE_mesh_batch_cache_dirty_tag(me_eval, BKE_MESH_BATCH_DIRTY_ALL);
}
else {
BKE_mesh_batch_cache_dirty_tag(me_eval, BKE_MESH_BATCH_DIRTY_SELECT_PAINT);
}
DEG_id_tag_update(ob->data, ID_RECALC_SELECT);
}
else {
DEG_id_tag_update(ob->data, ID_RECALC_COPY_ON_WRITE | ID_RECALC_SELECT);
}
WM_event_add_notifier(C, NC_GEOM | ND_SELECT, ob->data);
}
void paintface_hide(bContext *C, Object *ob, const bool unselected)
{
Mesh *me;
MPoly *mpoly;
int a;
me = BKE_mesh_from_object(ob);
if (me == NULL || me->totpoly == 0) {
return;
}
mpoly = me->mpoly;
a = me->totpoly;
while (a--) {
if ((mpoly->flag & ME_HIDE) == 0) {
if (((mpoly->flag & ME_FACE_SEL) == 0) == unselected) {
mpoly->flag |= ME_HIDE;
}
}
if (mpoly->flag & ME_HIDE) {
mpoly->flag &= ~ME_FACE_SEL;
}
mpoly++;
}
BKE_mesh_flush_hidden_from_polys(me);
paintface_flush_flags(C, ob, SELECT | ME_HIDE);
}
void paintface_reveal(bContext *C, Object *ob, const bool select)
{
Mesh *me;
MPoly *mpoly;
int a;
me = BKE_mesh_from_object(ob);
if (me == NULL || me->totpoly == 0) {
return;
}
mpoly = me->mpoly;
a = me->totpoly;
while (a--) {
if (mpoly->flag & ME_HIDE) {
SET_FLAG_FROM_TEST(mpoly->flag, select, ME_FACE_SEL);
mpoly->flag &= ~ME_HIDE;
}
mpoly++;
}
BKE_mesh_flush_hidden_from_polys(me);
paintface_flush_flags(C, ob, SELECT | ME_HIDE);
}
/* Set tface seams based on edge data, uses hash table to find seam edges. */
static void select_linked_tfaces_with_seams(Mesh *me, const uint index, const bool select)
{
MPoly *mp;
MLoop *ml;
int a, b;
bool do_it = true;
bool mark = false;
BLI_bitmap *edge_tag = BLI_BITMAP_NEW(me->totedge, __func__);
BLI_bitmap *poly_tag = BLI_BITMAP_NEW(me->totpoly, __func__);
if (index != (uint)-1) {
/* only put face under cursor in array */
mp = &me->mpoly[index];
BKE_mesh_poly_edgebitmap_insert(edge_tag, mp, me->mloop + mp->loopstart);
BLI_BITMAP_ENABLE(poly_tag, index);
}
else {
/* fill array by selection */
mp = me->mpoly;
for (a = 0; a < me->totpoly; a++, mp++) {
if (mp->flag & ME_HIDE) {
/* pass */
}
else if (mp->flag & ME_FACE_SEL) {
BKE_mesh_poly_edgebitmap_insert(edge_tag, mp, me->mloop + mp->loopstart);
BLI_BITMAP_ENABLE(poly_tag, a);
}
}
}
while (do_it) {
do_it = false;
/* expand selection */
mp = me->mpoly;
for (a = 0; a < me->totpoly; a++, mp++) {
if (mp->flag & ME_HIDE) {
continue;
}
if (!BLI_BITMAP_TEST(poly_tag, a)) {
mark = false;
ml = me->mloop + mp->loopstart;
for (b = 0; b < mp->totloop; b++, ml++) {
if ((me->medge[ml->e].flag & ME_SEAM) == 0) {
if (BLI_BITMAP_TEST(edge_tag, ml->e)) {
mark = true;
break;
}
}
}
if (mark) {
BLI_BITMAP_ENABLE(poly_tag, a);
BKE_mesh_poly_edgebitmap_insert(edge_tag, mp, me->mloop + mp->loopstart);
do_it = true;
}
}
}
}
MEM_freeN(edge_tag);
for (a = 0, mp = me->mpoly; a < me->totpoly; a++, mp++) {
if (BLI_BITMAP_TEST(poly_tag, a)) {
SET_FLAG_FROM_TEST(mp->flag, select, ME_FACE_SEL);
}
}
MEM_freeN(poly_tag);
}
void paintface_select_linked(bContext *C, Object *ob, const int mval[2], const bool select)
{
Mesh *me;
uint index = (uint)-1;
me = BKE_mesh_from_object(ob);
if (me == NULL || me->totpoly == 0) {
return;
}
if (mval) {
if (!ED_mesh_pick_face(C, ob, mval, ED_MESH_PICK_DEFAULT_FACE_DIST, &index)) {
return;
}
}
select_linked_tfaces_with_seams(me, index, select);
paintface_flush_flags(C, ob, SELECT);
}
bool paintface_deselect_all_visible(bContext *C, Object *ob, int action, bool flush_flags)
{
Mesh *me;
MPoly *mpoly;
int a;
me = BKE_mesh_from_object(ob);
if (me == NULL) {
return false;
}
if (action == SEL_TOGGLE) {
action = SEL_SELECT;
mpoly = me->mpoly;
a = me->totpoly;
while (a--) {
if ((mpoly->flag & ME_HIDE) == 0 && mpoly->flag & ME_FACE_SEL) {
action = SEL_DESELECT;
break;
}
mpoly++;
}
}
bool changed = false;
mpoly = me->mpoly;
a = me->totpoly;
while (a--) {
if ((mpoly->flag & ME_HIDE) == 0) {
switch (action) {
case SEL_SELECT:
if ((mpoly->flag & ME_FACE_SEL) == 0) {
mpoly->flag |= ME_FACE_SEL;
changed = true;
}
break;
case SEL_DESELECT:
if ((mpoly->flag & ME_FACE_SEL) != 0) {
mpoly->flag &= ~ME_FACE_SEL;
changed = true;
}
break;
case SEL_INVERT:
mpoly->flag ^= ME_FACE_SEL;
changed = true;
break;
}
}
mpoly++;
}
if (changed) {
if (flush_flags) {
paintface_flush_flags(C, ob, SELECT);
}
}
return changed;
}
bool paintface_minmax(Object *ob, float r_min[3], float r_max[3])
{
const Mesh *me;
const MPoly *mp;
const MLoop *ml;
const MVert *mvert;
int a, b;
bool ok = false;
float vec[3], bmat[3][3];
me = BKE_mesh_from_object(ob);
if (!me || !me->mloopuv) {
return ok;
}
copy_m3_m4(bmat, ob->obmat);
mvert = me->mvert;
mp = me->mpoly;
for (a = me->totpoly; a > 0; a--, mp++) {
if (mp->flag & ME_HIDE || !(mp->flag & ME_FACE_SEL)) {
continue;
}
ml = me->mloop + mp->loopstart;
for (b = 0; b < mp->totloop; b++, ml++) {
mul_v3_m3v3(vec, bmat, mvert[ml->v].co);
add_v3_v3v3(vec, vec, ob->obmat[3]);
minmax_v3v3_v3(r_min, r_max, vec);
}
ok = true;
}
return ok;
}
bool paintface_mouse_select(struct bContext *C,
const int mval[2],
const struct SelectPick_Params *params,
Object *ob)
{
Mesh *me;
MPoly *mpoly_sel = NULL;
uint index;
bool changed = false;
bool found = false;
/* Get the face under the cursor */
me = BKE_mesh_from_object(ob);
if (ED_mesh_pick_face(C, ob, mval, ED_MESH_PICK_DEFAULT_FACE_DIST, &index)) {
if (index < me->totpoly) {
mpoly_sel = me->mpoly + index;
if ((mpoly_sel->flag & ME_HIDE) == 0) {
found = true;
}
}
}
if ((params->sel_op == SEL_OP_SET) && (found || params->deselect_all)) {
changed |= paintface_deselect_all_visible(C, ob, SEL_DESELECT, false);
}
if (found) {
me->act_face = (int)index;
switch (params->sel_op) {
case SEL_OP_ADD: {
mpoly_sel->flag |= ME_FACE_SEL;
break;
}
case SEL_OP_SUB: {
mpoly_sel->flag &= ~ME_FACE_SEL;
break;
}
case SEL_OP_XOR: {
if (mpoly_sel->flag & ME_FACE_SEL) {
mpoly_sel->flag &= ~ME_FACE_SEL;
}
else {
mpoly_sel->flag |= ME_FACE_SEL;
}
break;
}
case SEL_OP_SET: {
mpoly_sel->flag |= ME_FACE_SEL;
break;
}
case SEL_OP_AND: {
BLI_assert_unreachable(); /* Doesn't make sense for picking. */
break;
}
}
/* image window redraw */
paintface_flush_flags(C, ob, SELECT);
ED_region_tag_redraw(CTX_wm_region(C)); /* XXX: should redraw all 3D views. */
changed = true;
}
return changed || found;
}
void paintvert_flush_flags(Object *ob)
{
Mesh *me = BKE_mesh_from_object(ob);
Mesh *me_eval = BKE_object_get_evaluated_mesh(ob);
MVert *mvert_eval, *mv;
const int *index_array = NULL;
int totvert;
int i;
if (me == NULL) {
return;
}
/* we could call this directly in all areas that change selection,
* since this could become slow for realtime updates (circle-select for eg) */
BKE_mesh_flush_select_from_verts(me);
if (me_eval == NULL) {
return;
}
index_array = CustomData_get_layer(&me_eval->vdata, CD_ORIGINDEX);
mvert_eval = me_eval->mvert;
totvert = me_eval->totvert;
mv = mvert_eval;
if (index_array) {
int orig_index;
for (i = 0; i < totvert; i++, mv++) {
orig_index = index_array[i];
if (orig_index != ORIGINDEX_NONE) {
mv->flag = me->mvert[index_array[i]].flag;
}
}
}
else {
for (i = 0; i < totvert; i++, mv++) {
mv->flag = me->mvert[i].flag;
}
}
BKE_mesh_batch_cache_dirty_tag(me, BKE_MESH_BATCH_DIRTY_ALL);
}
void paintvert_tag_select_update(struct bContext *C, struct Object *ob)
{
DEG_id_tag_update(ob->data, ID_RECALC_COPY_ON_WRITE | ID_RECALC_SELECT);
WM_event_add_notifier(C, NC_GEOM | ND_SELECT, ob->data);
}
bool paintvert_deselect_all_visible(Object *ob, int action, bool flush_flags)
{
Mesh *me;
MVert *mvert;
int a;
me = BKE_mesh_from_object(ob);
if (me == NULL) {
return false;
}
if (action == SEL_TOGGLE) {
action = SEL_SELECT;
mvert = me->mvert;
a = me->totvert;
while (a--) {
if ((mvert->flag & ME_HIDE) == 0 && mvert->flag & SELECT) {
action = SEL_DESELECT;
break;
}
mvert++;
}
}
bool changed = false;
mvert = me->mvert;
a = me->totvert;
while (a--) {
if ((mvert->flag & ME_HIDE) == 0) {
switch (action) {
case SEL_SELECT:
if ((mvert->flag & SELECT) == 0) {
mvert->flag |= SELECT;
changed = true;
}
break;
case SEL_DESELECT:
if ((mvert->flag & SELECT) != 0) {
mvert->flag &= ~SELECT;
changed = true;
}
break;
case SEL_INVERT:
mvert->flag ^= SELECT;
changed = true;
break;
}
}
mvert++;
}
if (changed) {
/* handle mselect */
if (action == SEL_SELECT) {
/* pass */
}
else if (ELEM(action, SEL_DESELECT, SEL_INVERT)) {
BKE_mesh_mselect_clear(me);
}
else {
BKE_mesh_mselect_validate(me);
}
if (flush_flags) {
paintvert_flush_flags(ob);
}
}
return changed;
}
void paintvert_select_ungrouped(Object *ob, bool extend, bool flush_flags)
{
Mesh *me = BKE_mesh_from_object(ob);
MVert *mv;
MDeformVert *dv;
int a, tot;
if (me == NULL || me->dvert == NULL) {
return;
}
if (!extend) {
paintvert_deselect_all_visible(ob, SEL_DESELECT, false);
}
dv = me->dvert;
tot = me->totvert;
for (a = 0, mv = me->mvert; a < tot; a++, mv++, dv++) {
if ((mv->flag & ME_HIDE) == 0) {
if (dv->dw == NULL) {
/* if null weight then not grouped */
mv->flag |= SELECT;
}
}
}
if (flush_flags) {
paintvert_flush_flags(ob);
}
}
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