style cleanup, brackets in else/if, some indentation.
[blender.git] / source / blender / modifiers / intern / MOD_cloth.c
1 /*
2  * ***** BEGIN GPL LICENSE BLOCK *****
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License
6  * as published by the Free Software Foundation; either version 2
7  * of the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software  Foundation,
16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  *
18  * The Original Code is Copyright (C) 2005 by the Blender Foundation.
19  * All rights reserved.
20  *
21  * Contributor(s): Daniel Dunbar
22  *                 Ton Roosendaal,
23  *                 Ben Batt,
24  *                 Brecht Van Lommel,
25  *                 Campbell Barton
26  *
27  * ***** END GPL LICENSE BLOCK *****
28  *
29  */
30
31 /** \file blender/modifiers/intern/MOD_cloth.c
32  *  \ingroup modifiers
33  */
34
35
36 #include "DNA_cloth_types.h"
37 #include "DNA_scene_types.h"
38 #include "DNA_object_types.h"
39
40 #include "MEM_guardedalloc.h"
41
42 #include "BLI_utildefines.h"
43
44
45 #include "BKE_cloth.h"
46 #include "BKE_cdderivedmesh.h"
47 #include "BKE_global.h"
48 #include "BKE_modifier.h"
49 #include "BKE_pointcache.h"
50
51 #include "depsgraph_private.h"
52
53 #include "MOD_util.h"
54
55 static void initData(ModifierData *md) 
56 {
57         ClothModifierData *clmd = (ClothModifierData*) md;
58         
59         clmd->sim_parms = MEM_callocN(sizeof(ClothSimSettings), "cloth sim parms");
60         clmd->coll_parms = MEM_callocN(sizeof(ClothCollSettings), "cloth coll parms");
61         clmd->point_cache = BKE_ptcache_add(&clmd->ptcaches);
62         
63         /* check for alloc failing */
64         if(!clmd->sim_parms || !clmd->coll_parms || !clmd->point_cache)
65                 return;
66         
67         cloth_init (clmd);
68 }
69
70 static void deformVerts(ModifierData *md, Object *ob, DerivedMesh *derivedData, float (*vertexCos)[3],
71                         int UNUSED(numVerts), int UNUSED(useRenderParams), int UNUSED(isFinalCalc))
72 {
73         DerivedMesh *dm;
74         ClothModifierData *clmd = (ClothModifierData*) md;
75         DerivedMesh *result=NULL;
76         
77         /* check for alloc failing */
78         if (!clmd->sim_parms || !clmd->coll_parms) {
79                 initData(md);
80
81                 if(!clmd->sim_parms || !clmd->coll_parms)
82                         return;
83         }
84
85         dm = get_dm(ob, NULL, derivedData, NULL, 0);
86         if(dm == derivedData)
87                 dm = CDDM_copy(dm);
88
89         CDDM_apply_vert_coords(dm, vertexCos);
90
91         DM_ensure_tessface(dm); /* BMESH - UNTIL MODIFIER IS UPDATED FOR MPoly */
92
93         clothModifier_do(clmd, md->scene, ob, dm, vertexCos);
94
95         if(result) {
96                 result->getVertCos(result, vertexCos);
97                 result->release(result);
98         }
99
100         dm->release(dm);
101 }
102
103 static void updateDepgraph(ModifierData *md, DagForest *forest, Scene *scene, Object *ob, DagNode *obNode)
104 {
105         ClothModifierData *clmd = (ClothModifierData*) md;
106         
107         Base *base;
108         
109         if(clmd) {
110                 for(base = scene->base.first; base; base= base->next) {
111                         Object *ob1= base->object;
112                         if (ob1 != ob) {
113                                 CollisionModifierData *coll_clmd = (CollisionModifierData *)modifiers_findByType(ob1, eModifierType_Collision);
114                                 if (coll_clmd) {
115                                         DagNode *curNode = dag_get_node(forest, ob1);
116                                         dag_add_relation(forest, curNode, obNode, DAG_RL_DATA_DATA|DAG_RL_OB_DATA, "Cloth Collision");
117                                 }
118                         }
119                 }
120         }
121 }
122
123 static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
124 {
125         CustomDataMask dataMask = 0;
126         ClothModifierData *clmd = (ClothModifierData*)md;
127
128         if(cloth_uses_vgroup(clmd))
129                 dataMask |= CD_MASK_MDEFORMVERT;
130
131         if(clmd->sim_parms->shapekey_rest != 0)
132                 dataMask |= CD_MASK_CLOTH_ORCO;
133
134         return dataMask;
135 }
136
137 static void copyData(ModifierData *md, ModifierData *target)
138 {
139         ClothModifierData *clmd = (ClothModifierData*) md;
140         ClothModifierData *tclmd = (ClothModifierData*) target;
141
142         if(tclmd->sim_parms) {
143                 if(tclmd->sim_parms->effector_weights)
144                         MEM_freeN(tclmd->sim_parms->effector_weights);
145                 MEM_freeN(tclmd->sim_parms);
146         }
147
148         if(tclmd->coll_parms)
149                 MEM_freeN(tclmd->coll_parms);
150         
151         BKE_ptcache_free_list(&tclmd->ptcaches);
152         tclmd->point_cache = NULL;
153
154         tclmd->sim_parms = MEM_dupallocN(clmd->sim_parms);
155         if(clmd->sim_parms->effector_weights)
156                 tclmd->sim_parms->effector_weights = MEM_dupallocN(clmd->sim_parms->effector_weights);
157         tclmd->coll_parms = MEM_dupallocN(clmd->coll_parms);
158         tclmd->point_cache = BKE_ptcache_copy_list(&tclmd->ptcaches, &clmd->ptcaches);
159         tclmd->clothObject = NULL;
160 }
161
162 static int dependsOnTime(ModifierData *UNUSED(md))
163 {
164         return 1;
165 }
166
167 static void freeData(ModifierData *md)
168 {
169         ClothModifierData *clmd = (ClothModifierData*) md;
170         
171         if (clmd) {
172                 if(G.rt > 0)
173                         printf("clothModifier_freeData\n");
174                 
175                 cloth_free_modifier_extern (clmd);
176                 
177                 if(clmd->sim_parms) {
178                         if(clmd->sim_parms->effector_weights)
179                                 MEM_freeN(clmd->sim_parms->effector_weights);
180                         MEM_freeN(clmd->sim_parms);
181                 }
182                 if(clmd->coll_parms)
183                         MEM_freeN(clmd->coll_parms);    
184                 
185                 BKE_ptcache_free_list(&clmd->ptcaches);
186                 clmd->point_cache = NULL;
187         }
188 }
189
190 static void foreachIDLink(ModifierData *md, Object *ob,
191                                            IDWalkFunc walk, void *userData)
192 {
193         ClothModifierData *clmd = (ClothModifierData*) md;
194
195         if(clmd->coll_parms) {
196                 walk(userData, ob, (ID **)&clmd->coll_parms->group);
197         }
198
199         if(clmd->sim_parms && clmd->sim_parms->effector_weights) {
200                 walk(userData, ob, (ID **)&clmd->sim_parms->effector_weights->group);
201         }
202 }
203
204 ModifierTypeInfo modifierType_Cloth = {
205         /* name */              "Cloth",
206         /* structName */        "ClothModifierData",
207         /* structSize */        sizeof(ClothModifierData),
208         /* type */              eModifierTypeType_OnlyDeform,
209         /* flags */             eModifierTypeFlag_AcceptsMesh
210                                                         | eModifierTypeFlag_UsesPointCache
211                                                         | eModifierTypeFlag_Single,
212
213         /* copyData */          copyData,
214         /* deformVerts */       deformVerts,
215         /* deformMatrices */    NULL,
216         /* deformVertsEM */     NULL,
217         /* deformMatricesEM */  NULL,
218         /* applyModifier */     NULL,
219         /* applyModifierEM */   NULL,
220         /* initData */          initData,
221         /* requiredDataMask */  requiredDataMask,
222         /* freeData */          freeData,
223         /* isDisabled */        NULL,
224         /* updateDepgraph */    updateDepgraph,
225         /* dependsOnTime */     dependsOnTime,
226         /* dependsOnNormals */  NULL,
227         /* foreachObjectLink */ NULL,
228         /* foreachIDLink */     foreachIDLink,
229         /* foreachTexLink */    NULL,
230 };