diff options
Diffstat (limited to 'source/blender/editors/mesh/bmeshutils.c')
| -rw-r--r-- | source/blender/editors/mesh/bmeshutils.c | 784 |
1 files changed, 784 insertions, 0 deletions
diff --git a/source/blender/editors/mesh/bmeshutils.c b/source/blender/editors/mesh/bmeshutils.c new file mode 100644 index 00000000000..bf7889ef3c0 --- /dev/null +++ b/source/blender/editors/mesh/bmeshutils.c @@ -0,0 +1,784 @@ + /* $Id: bmeshutils.c + * + * ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The Original Code is Copyright (C) 2004 by Blender Foundation. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): Joseph Eagar + * + * ***** END GPL LICENSE BLOCK ***** + */ +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <math.h> +#include <float.h> + +#include "MEM_guardedalloc.h" +#include "PIL_time.h" + +#include "BLO_sys_types.h" // for intptr_t support + +#include "DNA_mesh_types.h" +#include "DNA_material_types.h" +#include "DNA_meshdata_types.h" +#include "DNA_modifier_types.h" +#include "DNA_object_types.h" +#include "DNA_scene_types.h" +#include "DNA_screen_types.h" +#include "DNA_view3d_types.h" +#include "DNA_key_types.h" +#include "DNA_windowmanager_types.h" + +#include "RNA_types.h" +#include "RNA_define.h" +#include "RNA_access.h" + +#include "BLI_blenlib.h" +#include "BLI_arithb.h" +#include "BLI_editVert.h" +#include "BLI_rand.h" +#include "BLI_ghash.h" +#include "BLI_linklist.h" +#include "BLI_heap.h" +#include "BLI_array.h" + +#include "BKE_context.h" +#include "BKE_customdata.h" +#include "BKE_depsgraph.h" +#include "BKE_global.h" +#include "BKE_library.h" +#include "BKE_mesh.h" +#include "BKE_object.h" +#include "BKE_utildefines.h" +#include "BKE_bmesh.h" +#include "BKE_report.h" +#include "BKE_tessmesh.h" + +#include "BIF_gl.h" +#include "BIF_glutil.h" + +#include "WM_api.h" +#include "WM_types.h" + +#include "ED_mesh.h" +#include "ED_view3d.h" +#include "ED_util.h" +#include "ED_screen.h" + +#include "UI_interface.h" + +#include "mesh_intern.h" +#include "bmesh.h" + +void EDBM_RecalcNormals(BMEditMesh *em) +{ + BM_Compute_Normals(em->bm); +} + +void EDBM_stats_update(BMEditMesh *em) +{ + BMIter iter; + BMHeader *ele; + int types[3] = {BM_VERTS_OF_MESH, BM_EDGES_OF_MESH, BM_FACES_OF_MESH}; + int *tots[3]; + int i; + + tots[0] = &em->bm->totvertsel; + tots[1] = &em->bm->totedgesel; + tots[2] = &em->bm->totfacesel; + + em->bm->totvertsel = em->bm->totedgesel = em->bm->totfacesel = 0; + + for (i=0; i<3; i++) { + ele = BMIter_New(&iter, em->bm, types[i], NULL); + for ( ; ele; ele=BMIter_Step(&iter)) { + if (BM_TestHFlag(ele, BM_SELECT)) { + *tots[i]++; + } + } + } +} + +/*this function is defunct, dead*/ +void EDBM_Tesselate(EditMesh *em) +{ + EditMesh *em2; + EditFace *efa; + BMesh *bm; + int found=0; + + for (efa=em->faces.first; efa; efa=efa->next) { + if ((efa->e1->h & EM_FGON) || (efa->e2->h & EM_FGON) || + (efa->e3->h & EM_FGON) || (efa->e4&&(efa->e4->h&EM_FGON))) + { + found = 1; + break; + } + } + + if (found) { + bm = editmesh_to_bmesh(em); + em2 = bmesh_to_editmesh(bm); + set_editMesh(em, em2); + + MEM_freeN(em2); + BM_Free_Mesh(bm); + } +} + +int EDBM_InitOpf(BMEditMesh *em, BMOperator *bmop, wmOperator *op, char *fmt, ...) +{ + BMesh *bm = em->bm; + va_list list; + + va_start(list, fmt); + + if (!BMO_VInitOpf(bm, bmop, fmt, list)) { + BKE_report(op->reports, RPT_ERROR, + "Parse error in EDBM_CallOpf"); + va_end(list); + return 0; + } + + if (!em->emcopy) + em->emcopy = BMEdit_Copy(em); + em->emcopyusers++; + + va_end(list); +} + + +/*returns 0 on error, 1 on success. executes and finishes a bmesh operator*/ +int EDBM_FinishOp(BMEditMesh *em, BMOperator *bmop, wmOperator *op, int report) { + char *errmsg; + + BMO_Finish_Op(em->bm, bmop); + + if (BMO_GetError(em->bm, &errmsg, NULL)) { + BMEditMesh *emcopy = em->emcopy; + + if (report) BKE_report(op->reports, RPT_ERROR, errmsg); + + BMEdit_Free(em); + *em = *emcopy; + + MEM_freeN(emcopy); + em->emcopyusers = 0; + em->emcopy = NULL; + return 0; + } else { + em->emcopyusers--; + if (em->emcopyusers < 0) { + printf("warning: em->emcopyusers was less then zero.\n"); + } + + if (em->emcopyusers <= 0) { + BMEdit_Free(em->emcopy); + MEM_freeN(em->emcopy); + em->emcopy = NULL; + } + } + + return 1; +} + +int EDBM_CallOpf(BMEditMesh *em, wmOperator *op, char *fmt, ...) +{ + BMesh *bm = em->bm; + BMOperator bmop; + va_list list; + + va_start(list, fmt); + + if (!BMO_VInitOpf(bm, &bmop, fmt, list)) { + BKE_report(op->reports, RPT_ERROR, + "Parse error in EDBM_CallOpf"); + va_end(list); + return 0; + } + + if (!em->emcopy) + em->emcopy = BMEdit_Copy(em); + em->emcopyusers++; + + BMO_Exec_Op(bm, &bmop); + + va_end(list); + return EDBM_FinishOp(em, &bmop, op, 1); +} + +int EDBM_CallOpfSilent(BMEditMesh *em, char *fmt, ...) +{ + BMesh *bm = em->bm; + BMOperator bmop; + va_list list; + + va_start(list, fmt); + + if (!BMO_VInitOpf(bm, &bmop, fmt, list)) { + va_end(list); + return 0; + } + + if (!em->emcopy) + em->emcopy = BMEdit_Copy(em); + em->emcopyusers++; + + BMO_Exec_Op(bm, &bmop); + + va_end(list); + return EDBM_FinishOp(em, &bmop, NULL, 0); +} + +void EDBM_MakeEditBMesh(ToolSettings *ts, Scene *scene, Object *ob) +{ + Mesh *me = ob->data; + EditMesh *em; + BMesh *bm; + + if (!me->mpoly && me->totface) { + em = make_editMesh(scene, ob); + bm = editmesh_to_bmesh(em); + + free_editMesh(em); + } else { + bm = BKE_mesh_to_bmesh(me); + } + + me->edit_btmesh = BMEdit_Create(bm); + me->edit_btmesh->selectmode = ts->selectmode; +} + +void EDBM_LoadEditBMesh(Scene *scene, Object *ob) +{ + Mesh *me = ob->data; + BMesh *bm = me->edit_btmesh->bm; + + BMO_CallOpf(bm, "object_load_bmesh scene=%p object=%p", scene, ob); +} + +void EDBM_FreeEditBMesh(BMEditMesh *tm) +{ + BMEdit_Free(tm); +} + +void EDBM_init_index_arrays(BMEditMesh *tm, int forvert, int foredge, int forface) +{ + EDBM_free_index_arrays(tm); + + if (forvert) { + BMIter iter; + BMVert *ele; + int i=0; + + tm->vert_index = MEM_mallocN(sizeof(void**)*tm->bm->totvert, "tm->vert_index"); + + ele = BMIter_New(&iter, tm->bm, BM_VERTS_OF_MESH, NULL); + for ( ; ele; ele=BMIter_Step(&iter)) { + tm->vert_index[i++] = ele; + } + } + + if (foredge) { + BMIter iter; + BMEdge *ele; + int i=0; + + tm->edge_index = MEM_mallocN(sizeof(void**)*tm->bm->totedge, "tm->edge_index"); + + ele = BMIter_New(&iter, tm->bm, BM_EDGES_OF_MESH, NULL); + for ( ; ele; ele=BMIter_Step(&iter)) { + tm->edge_index[i++] = ele; + } + } + + if (forface) { + BMIter iter; + BMFace *ele; + int i=0; + + tm->face_index = MEM_mallocN(sizeof(void**)*tm->bm->totface, "tm->face_index"); + + ele = BMIter_New(&iter, tm->bm, BM_FACES_OF_MESH, NULL); + for ( ; ele; ele=BMIter_Step(&iter)) { + tm->face_index[i++] = ele; + } + } +} + +void EDBM_free_index_arrays(BMEditMesh *tm) +{ + if (tm->vert_index) { + MEM_freeN(tm->vert_index); + tm->vert_index = NULL; + } + + if (tm->edge_index) { + MEM_freeN(tm->edge_index); + tm->edge_index = NULL; + } + + if (tm->face_index) { + MEM_freeN(tm->face_index); + tm->face_index = NULL; + } +} + +BMVert *EDBM_get_vert_for_index(BMEditMesh *tm, int index) +{ + return tm->vert_index?tm->vert_index[index]:NULL; +} + +BMEdge *EDBM_get_edge_for_index(BMEditMesh *tm, int index) +{ + return tm->edge_index?tm->edge_index[index]:NULL; +} + +BMFace *EDBM_get_face_for_index(BMEditMesh *tm, int index) +{ + return tm->face_index?tm->face_index[index]:NULL; +} + +/* this replaces the active flag used in uv/face mode */ +void EDBM_set_actFace(BMEditMesh *em, BMFace *efa) +{ + em->bm->act_face = efa; +} + +BMFace *EDBM_get_actFace(BMEditMesh *em, int sloppy) +{ + if (em->bm->act_face) { + return em->bm->act_face; + } else if (sloppy) { + BMFace *efa= NULL; + BMEditSelection *ese; + + ese = em->bm->selected.last; + for (; ese; ese=ese->prev){ + if(ese->type == BM_FACE) { + efa = (BMFace *)ese->data; + + if (BM_TestHFlag(efa, BM_HIDDEN)) efa= NULL; + else break; + } + } + if (efa==NULL) { + BMIter iter; + efa = BMIter_New(&iter, em->bm, BM_FACES_OF_MESH, NULL); + for ( ; efa; efa=BMIter_Step(&iter)) { + if (BM_TestHFlag(efa, BM_SELECT)) + break; + } + } + return efa; /* can still be null */ + } + return NULL; + +} + +void EDBM_select_flush(BMEditMesh *em, int selectmode) +{ + em->bm->selectmode = selectmode; + BM_SelectMode_Flush(em->bm); + em->bm->selectmode = em->selectmode; +} + +/*BMESH_TODO*/ +void EDBM_deselect_flush(BMEditMesh *em) +{ +} + + +void EDBM_selectmode_flush(BMEditMesh *em) +{ + em->bm->selectmode = em->selectmode; + BM_SelectMode_Flush(em->bm); +} + +/*EDBM_select_[more/less] are api functions, I think the uv editor + uses them? though the select more/less ops themselves do not.*/ +void EDBM_select_more(BMEditMesh *em) +{ + BMOperator bmop; + int usefaces = em->selectmode > SCE_SELECT_EDGE; + + BMO_InitOpf(em->bm, &bmop, + "regionextend geom=%hvef constrict=%d usefaces=%d", + BM_SELECT, 0, usefaces); + BMO_Exec_Op(em->bm, &bmop); + BMO_HeaderFlag_Buffer(em->bm, &bmop, "geomout", BM_SELECT, BM_ALL); + BMO_Finish_Op(em->bm, &bmop); + + EDBM_selectmode_flush(em); +} + +void EDBM_select_less(BMEditMesh *em) +{ + BMOperator bmop; + int usefaces = em->selectmode > SCE_SELECT_EDGE; + + BMO_InitOpf(em->bm, &bmop, + "regionextend geom=%hvef constrict=%d usefaces=%d", + BM_SELECT, 0, usefaces); + BMO_Exec_Op(em->bm, &bmop); + BMO_HeaderFlag_Buffer(em->bm, &bmop, "geomout", BM_SELECT, BM_ALL); + BMO_Finish_Op(em->bm, &bmop); + + EDBM_selectmode_flush(em); +} + +int EDBM_get_actSelection(BMEditMesh *em, BMEditSelection *ese) +{ + BMEditSelection *ese_last = em->bm->selected.last; + BMFace *efa = EDBM_get_actFace(em, 0); + + ese->next = ese->prev = NULL; + + if (ese_last) { + if (ese_last->type == BM_FACE) { /* if there is an active face, use it over the last selected face */ + if (efa) { + ese->data = (void *)efa; + } else { + ese->data = ese_last->data; + } + ese->type = BM_FACE; + } else { + ese->data = ese_last->data; + ese->type = ese_last->type; + } + } else if (efa) { /* no */ + ese->data = (void *)efa; + ese->type = BM_FACE; + } else { + ese->data = NULL; + return 0; + } + return 1; +} + +void EDBM_clear_flag_all(BMEditMesh *em, int flag) +{ + BMIter iter; + BMHeader *ele; + int i, type; + + if (flag & BM_SELECT) + BM_clear_selection_history(em->bm); + + for (i=0; i<3; i++) { + switch (i) { + case 0: + type = BM_VERTS_OF_MESH; + break; + case 1: + type = BM_EDGES_OF_MESH; + break; + case 2: + type = BM_FACES_OF_MESH; + break; + } + + ele = BMIter_New(&iter, em->bm, type, NULL); + for ( ; ele; ele=BMIter_Step(&iter)) { + if (flag & BM_SELECT) BM_Select(em->bm, ele, 0); + BM_ClearHFlag(ele, flag); + } + } +} + +void EDBM_set_flag_all(BMEditMesh *em, int flag) +{ + BMIter iter; + BMHeader *ele; + int i, type; + + for (i=0; i<3; i++) { + switch (i) { + case 0: + type = BM_VERTS_OF_MESH; + break; + case 1: + type = BM_EDGES_OF_MESH; + break; + case 2: + type = BM_FACES_OF_MESH; + break; + } + + ele = BMIter_New(&iter, em->bm, type, NULL); + for ( ; ele; ele=BMIter_Step(&iter)) { + if (flag & BM_SELECT) BM_Select(em->bm, ele, 1); + BM_SetHFlag(ele, flag); + } + } +} + +/**************-------------- Undo ------------*****************/ + +/* for callbacks */ + +static void *getEditMesh(bContext *C) +{ + Object *obedit= CTX_data_edit_object(C); + if(obedit && obedit->type==OB_MESH) { + Mesh *me= obedit->data; + return me->edit_btmesh; + } + return NULL; +} + +typedef struct undomesh { + Mesh me; + int selectmode; +} undomesh; + +/*undo simply makes copies of a bmesh*/ +static void *editbtMesh_to_undoMesh(void *emv) +{ + BMEditMesh *em = emv; + undomesh *me = MEM_callocN(sizeof(undomesh), "undo Mesh"); + + /*we recalc the tesselation here, to avoid seeding calls to + BMEdit_RecalcTesselation throughout the code.*/ + BMEdit_RecalcTesselation(em); + + BMO_CallOpf(em->bm, "bmesh_to_mesh meshptr=%p notesselation=%i", me, 1); + me->selectmode = em->selectmode; + + return me; +} + +static void undoMesh_to_editbtMesh(void *umv, void *emv) +{ + BMEditMesh *em = emv, *em2; + undomesh *me = umv; + BMesh *bm; + int allocsize[4] = {512, 512, 2048, 512}; + + BMEdit_Free(em); + + bm = BM_Make_Mesh(allocsize); + BMO_CallOpf(bm, "mesh_to_bmesh mesh=%p", me); + + em2 = BMEdit_Create(bm); + *em = *em2; + + em->selectmode = me->selectmode; + + MEM_freeN(em2); +} + + +static void free_undo(void *umv) +{ + free_mesh(umv, 0); + MEM_freeN(umv); +} + +/* and this is all the undo system needs to know */ +void undo_push_mesh(bContext *C, char *name) +{ + undo_editmode_push(C, name, getEditMesh, free_undo, undoMesh_to_editbtMesh, editbtMesh_to_undoMesh, NULL); +} + +/*write comment here*/ +UvVertMap *EDBM_make_uv_vert_map(BMEditMesh *em, int selected, int do_face_idx_array, float *limit) +{ + BMVert *ev; + BMFace *efa; + BMLoop *l; + BMIter iter, liter; + /* vars from original func */ + UvVertMap *vmap; + UvMapVert *buf; + MTexPoly *tf; + MLoopUV *luv; + unsigned int a; + int totverts, i, totuv; + + if (do_face_idx_array) + EDBM_init_index_arrays(em, 0, 0, 1); + + /* we need the vert */ + totverts=0; + BM_ITER(ev, &iter, em->bm, BM_VERTS_OF_MESH, NULL) { + BMINDEX_SET(ev, totverts); + totverts++; + } + + totuv = 0; + + /* generate UvMapVert array */ + BM_ITER(efa, &iter, em->bm, BM_FACES_OF_MESH, NULL) { + if(!selected || ((!BM_TestHFlag(efa, BM_HIDDEN)) && BM_TestHFlag(efa, BM_SELECT))) + totuv += efa->len; + } + + if(totuv==0) { + if (do_face_idx_array) + EDBM_free_index_arrays(em); + return NULL; + } + vmap= (UvVertMap*)MEM_callocN(sizeof(*vmap), "UvVertMap"); + if (!vmap) { + if (do_face_idx_array) + EDBM_free_index_arrays(em); + return NULL; + } + + vmap->vert= (UvMapVert**)MEM_callocN(sizeof(*vmap->vert)*totverts, "UvMapVert*"); + buf= vmap->buf= (UvMapVert*)MEM_callocN(sizeof(*vmap->buf)*totuv, "UvMapVert"); + + if (!vmap->vert || !vmap->buf) { + free_uv_vert_map(vmap); + if (do_face_idx_array) + EDBM_free_index_arrays(em); + return NULL; + } + + a = 0; + BM_ITER(efa, &iter, em->bm, BM_FACES_OF_MESH, NULL) { + if(!selected || ((!BM_TestHFlag(efa, BM_HIDDEN)) && BM_TestHFlag(efa, BM_SELECT))) { + i = 0; + BM_ITER(l, &liter, em->bm, BM_LOOPS_OF_FACE, efa) { + buf->tfindex= i; + buf->f= a; + buf->separate = 0; + + buf->next= vmap->vert[BMINDEX_GET(l->v)]; + vmap->vert[BMINDEX_GET(l->v)]= buf; + + buf++; + i++; + } + } + + a++; + } + + /* sort individual uvs for each vert */ + a = 0; + BM_ITER(ev, &iter, em->bm, BM_VERTS_OF_MESH, NULL) { + UvMapVert *newvlist= NULL, *vlist=vmap->vert[a]; + UvMapVert *iterv, *v, *lastv, *next; + float *uv, *uv2, uvdiff[2]; + + while(vlist) { + v= vlist; + vlist= vlist->next; + v->next= newvlist; + newvlist= v; + + efa = EDBM_get_face_for_index(em, v->f); + tf = CustomData_bmesh_get(&em->bm->pdata, efa->head.data, CD_MTEXPOLY); + + l = BMIter_AtIndex(em->bm, BM_LOOPS_OF_FACE, efa, v->tfindex); + luv = CustomData_bmesh_get(&em->bm->ldata, l->head.data, CD_MLOOPUV); + uv = luv->uv; + + lastv= NULL; + iterv= vlist; + + while(iterv) { + next= iterv->next; + efa = EDBM_get_face_for_index(em, iterv->f); + tf = CustomData_bmesh_get(&em->bm->pdata, efa->head.data, CD_MTEXPOLY); + + l = BMIter_AtIndex(em->bm, BM_LOOPS_OF_FACE, efa, iterv->tfindex); + luv = CustomData_bmesh_get(&em->bm->ldata, l->head.data, CD_MLOOPUV); + uv2 = luv->uv; + + Vec2Subf(uvdiff, uv2, uv); + + if(fabs(uv[0]-uv2[0]) < limit[0] && fabs(uv[1]-uv2[1]) < limit[1]) { + if(lastv) lastv->next= next; + else vlist= next; + iterv->next= newvlist; + newvlist= iterv; + } + else + lastv=iterv; + + iterv= next; + } + + newvlist->separate = 1; + } + + vmap->vert[a]= newvlist; + a++; + } + + if (do_face_idx_array) + EDBM_free_index_arrays(em); + + return vmap; +} + + +UvMapVert *EDBM_get_uv_map_vert(UvVertMap *vmap, unsigned int v) +{ + return vmap->vert[v]; +} + +void EDBM_free_uv_vert_map(UvVertMap *vmap) +{ + if (vmap) { + if (vmap->vert) MEM_freeN(vmap->vert); + if (vmap->buf) MEM_freeN(vmap->buf); + MEM_freeN(vmap); + } +} + + +/* last_sel, use em->act_face otherwise get the last selected face in the editselections + * at the moment, last_sel is mainly useful for gaking sure the space image dosnt flicker */ +MTexPoly *EDBM_get_active_mtexpoly(BMEditMesh *em, BMFace **act_efa, int sloppy) +{ + BMFace *efa = NULL; + + if(!EDBM_texFaceCheck(em)) + return NULL; + + efa = EDBM_get_actFace(em, sloppy); + + if (efa) { + if (act_efa) *act_efa = efa; + return CustomData_bmesh_get(&em->bm->pdata, efa->head.data, CD_MTEXPOLY); + } + + if (act_efa) *act_efa= NULL; + return NULL; +} + +/* can we edit UV's for this mesh?*/ +int EDBM_texFaceCheck(BMEditMesh *em) +{ + /* some of these checks could be a touch overkill */ + return em && em->bm->totface && CustomData_has_layer(&em->bm->pdata, CD_MTEXPOLY); +} + +int EDBM_vertColorCheck(BMEditMesh *em) +{ + /* some of these checks could be a touch overkill */ + return em && em->bm->totface && CustomData_has_layer(&em->bm->ldata, CD_MLOOPCOL); +} + |