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path: root/source/blender/editors/sculpt_paint/sculpt_undo.c
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Diffstat (limited to 'source/blender/editors/sculpt_paint/sculpt_undo.c')
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diff --git a/source/blender/editors/sculpt_paint/sculpt_undo.c b/source/blender/editors/sculpt_paint/sculpt_undo.c
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+++ b/source/blender/editors/sculpt_paint/sculpt_undo.c
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+/*
+ * $Id$
+ *
+ * ***** 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) 2006 by Nicholas Bishop
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ *
+ * Implements the Sculpt Mode tools
+ *
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_math.h"
+#include "BLI_ghash.h"
+#include "BLI_threads.h"
+
+#include "DNA_meshdata_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_mesh_types.h"
+
+#include "BKE_cdderivedmesh.h"
+#include "BKE_context.h"
+#include "BKE_depsgraph.h"
+#include "BKE_modifier.h"
+#include "BKE_multires.h"
+#include "BKE_paint.h"
+#include "BKE_key.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "ED_sculpt.h"
+#include "paint_intern.h"
+#include "sculpt_intern.h"
+
+/************************** Undo *************************/
+
+static void update_cb(PBVHNode *node, void *unused)
+{
+ (void)unused;
+ BLI_pbvh_node_mark_update(node);
+}
+
+static void sculpt_undo_restore(bContext *C, ListBase *lb)
+{
+ Scene *scene = CTX_data_scene(C);
+ Object *ob = CTX_data_active_object(C);
+ DerivedMesh *dm = mesh_get_derived_final(scene, ob, 0);
+ SculptSession *ss = ob->sculpt;
+ SculptUndoNode *unode;
+ MVert *mvert;
+ MultiresModifierData *mmd;
+ int *index;
+ int i, j, update= 0;
+
+ sculpt_update_mesh_elements(scene, ob, 0);
+
+ for(unode=lb->first; unode; unode=unode->next) {
+ if(!(strcmp(unode->idname, ob->id.name)==0))
+ continue;
+
+ if(unode->maxvert) {
+ char *shapeName= (char*)unode->shapeName;
+
+ /* regular mesh restore */
+ if(ss->totvert != unode->maxvert)
+ continue;
+
+ if (ss->kb && strcmp(ss->kb->name, shapeName)) {
+ /* shape key has been changed before calling undo operator */
+
+ Key *key= ob_get_key(ob);
+ KeyBlock *kb= key_get_named_keyblock(key, shapeName);
+
+ if (kb) {
+ ob->shapenr= BLI_findindex(&key->block, kb) + 1;
+ ob->shapeflag|= OB_SHAPE_LOCK;
+
+ sculpt_update_mesh_elements(scene, ob, 0);
+ WM_event_add_notifier(C, NC_OBJECT|ND_DATA, ob);
+ } else {
+ /* key has been removed -- skip this undo node */
+ continue;
+ }
+ }
+
+ index= unode->index;
+ mvert= ss->mvert;
+
+ if (ss->kb) {
+ float (*vertCos)[3];
+ vertCos= key_to_vertcos(ob, ss->kb);
+
+ for(i=0; i<unode->totvert; i++)
+ swap_v3_v3(vertCos[index[i]], unode->co[i]);
+
+ /* propagate new coords to keyblock */
+ sculpt_vertcos_to_key(ob, ss->kb, vertCos);
+
+ /* pbvh uses it's own mvert array, so coords should be */
+ /* propagated to pbvh here */
+ BLI_pbvh_apply_vertCos(ss->pbvh, vertCos);
+
+ MEM_freeN(vertCos);
+ } else {
+ for(i=0; i<unode->totvert; i++) {
+ swap_v3_v3(mvert[index[i]].co, unode->co[i]);
+ mvert[index[i]].flag |= ME_VERT_PBVH_UPDATE;
+ }
+ }
+ }
+ else if(unode->maxgrid && dm->getGridData) {
+ /* multires restore */
+ DMGridData **grids, *grid;
+ float (*co)[3];
+ int gridsize;
+
+ if(dm->getNumGrids(dm) != unode->maxgrid)
+ continue;
+ if(dm->getGridSize(dm) != unode->gridsize)
+ continue;
+
+ grids= dm->getGridData(dm);
+ gridsize= dm->getGridSize(dm);
+
+ co = unode->co;
+ for(j=0; j<unode->totgrid; j++) {
+ grid= grids[unode->grids[j]];
+
+ for(i=0; i<gridsize*gridsize; i++, co++)
+ swap_v3_v3(grid[i].co, co[0]);
+ }
+ }
+
+ update= 1;
+ }
+
+ if(update) {
+ /* we update all nodes still, should be more clever, but also
+ needs to work correct when exiting/entering sculpt mode and
+ the nodes get recreated, though in that case it could do all */
+ BLI_pbvh_search_callback(ss->pbvh, NULL, NULL, update_cb, NULL);
+ BLI_pbvh_update(ss->pbvh, PBVH_UpdateBB|PBVH_UpdateOriginalBB|PBVH_UpdateRedraw, NULL);
+
+ if((mmd=sculpt_multires_active(scene, ob)))
+ multires_mark_as_modified(ob);
+
+ if(ss->modifiers_active || ((Mesh*)ob->data)->id.us > 1)
+ DAG_id_flush_update(&ob->id, OB_RECALC_DATA);
+ }
+}
+
+static void sculpt_undo_free(ListBase *lb)
+{
+ SculptUndoNode *unode;
+
+ for(unode=lb->first; unode; unode=unode->next) {
+ if(unode->co)
+ MEM_freeN(unode->co);
+ if(unode->no)
+ MEM_freeN(unode->no);
+ if(unode->index)
+ MEM_freeN(unode->index);
+ if(unode->grids)
+ MEM_freeN(unode->grids);
+ if(unode->layer_disp)
+ MEM_freeN(unode->layer_disp);
+ }
+}
+
+SculptUndoNode *sculpt_undo_get_node(PBVHNode *node)
+{
+ ListBase *lb= undo_paint_push_get_list(UNDO_PAINT_MESH);
+ SculptUndoNode *unode;
+
+ if(!lb)
+ return NULL;
+
+ for(unode=lb->first; unode; unode=unode->next)
+ if(unode->node == node)
+ return unode;
+
+ return NULL;
+}
+
+SculptUndoNode *sculpt_undo_push_node(SculptSession *ss, PBVHNode *node)
+{
+ ListBase *lb= undo_paint_push_get_list(UNDO_PAINT_MESH);
+ Object *ob= ss->ob;
+ SculptUndoNode *unode;
+ int totvert, allvert, totgrid, maxgrid, gridsize, *grids;
+
+ /* list is manipulated by multiple threads, so we lock */
+ BLI_lock_thread(LOCK_CUSTOM1);
+
+ if((unode= sculpt_undo_get_node(node))) {
+ BLI_unlock_thread(LOCK_CUSTOM1);
+ return unode;
+ }
+
+ unode= MEM_callocN(sizeof(SculptUndoNode), "SculptUndoNode");
+ strcpy(unode->idname, ob->id.name);
+ unode->node= node;
+
+ BLI_pbvh_node_num_verts(ss->pbvh, node, &totvert, &allvert);
+ BLI_pbvh_node_get_grids(ss->pbvh, node, &grids, &totgrid,
+ &maxgrid, &gridsize, NULL, NULL);
+
+ unode->totvert= totvert;
+ /* we will use this while sculpting, is mapalloc slow to access then? */
+ unode->co= MEM_mapallocN(sizeof(float)*3*allvert, "SculptUndoNode.co");
+ unode->no= MEM_mapallocN(sizeof(short)*3*allvert, "SculptUndoNode.no");
+ undo_paint_push_count_alloc(UNDO_PAINT_MESH, (sizeof(float)*3 + sizeof(short)*3 + sizeof(int))*allvert);
+ BLI_addtail(lb, unode);
+
+ if(maxgrid) {
+ /* multires */
+ unode->maxgrid= maxgrid;
+ unode->totgrid= totgrid;
+ unode->gridsize= gridsize;
+ unode->grids= MEM_mapallocN(sizeof(int)*totgrid, "SculptUndoNode.grids");
+ }
+ else {
+ /* regular mesh */
+ unode->maxvert= ss->totvert;
+ unode->index= MEM_mapallocN(sizeof(int)*allvert, "SculptUndoNode.index");
+ }
+
+ BLI_unlock_thread(LOCK_CUSTOM1);
+
+ /* copy threaded, hopefully this is the performance critical part */
+ {
+ PBVHVertexIter vd;
+
+ BLI_pbvh_vertex_iter_begin(ss->pbvh, node, vd, PBVH_ITER_ALL) {
+ copy_v3_v3(unode->co[vd.i], vd.co);
+ if(vd.no) VECCOPY(unode->no[vd.i], vd.no)
+ else normal_float_to_short_v3(unode->no[vd.i], vd.fno);
+ if(vd.vert_indices) unode->index[vd.i]= vd.vert_indices[vd.i];
+ }
+ BLI_pbvh_vertex_iter_end;
+ }
+
+ if(unode->grids)
+ memcpy(unode->grids, grids, sizeof(int)*totgrid);
+
+ /* store active shape key */
+ if(ss->kb) BLI_strncpy((char*)unode->shapeName, ss->kb->name, sizeof(ss->kb->name));
+ else unode->shapeName[0]= '\0';
+
+ return unode;
+}
+
+void sculpt_undo_push_begin(char *name)
+{
+ undo_paint_push_begin(UNDO_PAINT_MESH, name,
+ sculpt_undo_restore, sculpt_undo_free);
+}
+
+void sculpt_undo_push_end(void)
+{
+ ListBase *lb= undo_paint_push_get_list(UNDO_PAINT_MESH);
+ SculptUndoNode *unode;
+
+ /* we don't need normals in the undo stack */
+ for(unode=lb->first; unode; unode=unode->next) {
+ if(unode->no) {
+ MEM_freeN(unode->no);
+ unode->no= NULL;
+ }
+
+ if(unode->layer_disp) {
+ MEM_freeN(unode->layer_disp);
+ unode->layer_disp= NULL;
+ }
+ }
+
+ undo_paint_push_end(UNDO_PAINT_MESH);
+}
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