goat3d: 36e39632db75 src/xform

goat3d

view src/xform_node.cc @ 72:36e39632db75

- fixed exporter animation bounds calculation - fixed missing scene name in exported meshes - rewritting goatview as a full GUI app with Qt

author	John Tsiombikas <nuclear@member.fsf.org>
date	Tue, 06 May 2014 03:31:35 +0300
parents	8970ca3d55e0
children	da100bf13f7f

line source

1 /*

2 goat3d - 3D scene, character, and animation file format library.

5 This program is free software: you can redistribute it and/or modify

6 it under the terms of the GNU Lesser General Public License as published by

7 the Free Software Foundation, either version 3 of the License, or

8 (at your option) any later version.

10 This program is distributed in the hope that it will be useful,

11 but WITHOUT ANY WARRANTY; without even the implied warranty of

12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

13 GNU Lesser General Public License for more details.

15 You should have received a copy of the GNU Lesser General Public License

16 along with this program. If not, see <http://www.gnu.org/licenses/>.

17 */

18 #include <assert.h>

19 #include <algorithm>

20 #include "xform_node.h"

21 #include "anim/anim.h"

22 #include "anim/track.h"

24 using namespace g3dimpl;

26 static inline anm_interpolator track_interpolator(Interp in);

27 static inline anm_extrapolator track_extrapolator(Extrap ex);

29 XFormNode::XFormNode()

30 {

31 anm = new anm_node;

32 anm_init_node(anm);

33 parent = 0;

35 // TODO read them from anm to get the correct initial values

36 interp = INTERP_LINEAR;

37 extrap = EXTRAP_EXTEND;

38 }

40 XFormNode::~XFormNode()

41 {

42 anm_destroy_node(anm);

43 delete anm;

44 }

46 struct anm_node *XFormNode::get_libanim_node() const

47 {

48 return anm;

49 }

51 void XFormNode::set_name(const char *name)

52 {

53 anm_set_node_name(anm, name);

54 }

56 const char *XFormNode::get_name() const

57 {

58 return anm_get_node_name(anm);

59 }

61 void XFormNode::set_interpolator(Interp in)

62 {

63 anm_set_interpolator(anm, track_interpolator(in));

64 interp = in;

65 }

67 Interp XFormNode::get_interpolator() const

68 {

69 return interp;

70 }

72 void XFormNode::set_extrapolator(Extrap ex)

73 {

74 anm_set_extrapolator(anm, track_extrapolator(ex));

75 extrap = ex;

76 }

78 Extrap XFormNode::get_extrapolator() const

79 {

80 return extrap;

81 }

83 XFormNode *XFormNode::get_parent()

84 {

85 return parent;

86 }

88 const XFormNode *XFormNode::get_parent() const

89 {

90 return parent;

91 }

93 void XFormNode::add_child(XFormNode *child)

94 {

95 if(!child || child == this) return;

97 children.push_back(child);

98 anm_link_node(anm, child->anm);

99 child->parent = this;

100 }

101

102 void XFormNode::remove_child(XFormNode *child)

103 {

104 std::vector<XFormNode*>::iterator it;

105 it = std::find(children.begin(), children.end(), child);

106 if(it != children.end()) {

107 children.erase(it);

108 anm_unlink_node(anm, child->anm);

109

110 if(child->parent == this) {

111 child->parent = 0;

112 }

113 }

114 }

115

116 int XFormNode::get_children_count() const

117 {

118 return (int)children.size();

119 }

120

121 XFormNode *XFormNode::get_child(int idx)

122 {

123 if(idx >= 0 && idx < get_children_count()) {

124 return children[idx];

125 }

126 return 0;

127 }

128

129 const XFormNode *XFormNode::get_child(int idx) const

130 {

131 if(idx >= 0 && idx < get_children_count()) {

132 return children[idx];

133 }

134 return 0;

135 }

136

137

138 void XFormNode::use_animation(int idx)

139 {

140 if(idx >= 0) {

141 anm_use_animation(anm, idx);

142 }

143 }

144

145 void XFormNode::use_animation(const char *name)

146 {

147 anm_use_animation(anm, anm_find_animation(anm, name));

148 }

149

150 void XFormNode::use_animation(int aidx, int bidx, float t)

151 {

152 anm_use_animations(anm, aidx, bidx, t);

153 }

154

155 void XFormNode::use_animation(const char *aname, const char *bname, float t)

156 {

157 int aidx = anm_find_animation(anm, aname);

158 int bidx = anm_find_animation(anm, bname);

159

160 if(aidx == -1) {

161 use_animation(bidx);

162 }

163 if(bidx == -1) {

164 use_animation(aidx);

165 }

166 anm_use_animations(anm, aidx, bidx, t);

167 }

168

169 int XFormNode::get_active_animation_index(int which) const

170 {

171 return anm_get_active_animation_index(anm, which);

172 }

173

174 float XFormNode::get_active_animation_mix() const

175 {

176 return anm_get_active_animation_mix(anm);

177 }

178

179 int XFormNode::get_animation_count() const

180 {

181 return anm_get_animation_count(anm);

182 }

183

184 void XFormNode::add_animation(const char *name)

185 {

186 int idx = get_animation_count();

187

188 anm_add_animation(anm);

189 use_animation(idx);

190

191 if(name) {

192 set_animation_name(name);

193 }

194 }

195

196 void XFormNode::set_animation_name(const char *name)

197 {

198 anm_set_active_animation_name(anm, name);

199 }

200

201 const char *XFormNode::get_animation_name() const

202 {

203 return anm_get_active_animation_name(anm);

204 }

205

206 static const int track_type_base[] = {ANM_TRACK_POS_X, ANM_TRACK_ROT_X, ANM_TRACK_SCL_X};

207 static const int track_type_nelem[] = {3, 4, 3};

208

209 int XFormNode::get_key_count(int trackid) const

210 {

211 struct anm_animation *anim = anm_get_active_animation(anm, 0);

212 if(anim) {

213 return anim->tracks[track_type_base[trackid]].count;

214 }

215 return 0;

216 }

217

218 int XFormNode::get_position_key_count() const

219 {

220 return get_key_count(POSITION_TRACK);

221 }

222

223 int XFormNode::get_rotation_key_count() const

224 {

225 return get_key_count(ROTATION_TRACK);

226 }

227

228 int XFormNode::get_scaling_key_count() const

229 {

230 return get_key_count(SCALING_TRACK);

231 }

232

233 long XFormNode::get_key_time(int trackid, int idx) const

234 {

235 struct anm_animation *anim = anm_get_active_animation(anm, 0);

236 struct anm_keyframe *key = anm_get_keyframe(anim->tracks + track_type_base[trackid], idx);

237 return ANM_TM2MSEC(key->time);

238 }

239

240 long XFormNode::get_position_key_time(int idx) const

241 {

242 return get_key_time(POSITION_TRACK, idx);

243 }

244

245 long XFormNode::get_rotation_key_time(int idx) const

246 {

247 return get_key_time(ROTATION_TRACK, idx);

248 }

249

250 long XFormNode::get_scaling_key_time(int idx) const

251 {

252 return get_key_time(SCALING_TRACK, idx);

253 }

254

255 int XFormNode::get_key_value(int trackid, int idx, float *val) const

256 {

257 struct anm_animation *anim = anm_get_active_animation(anm, 0);

258

259 int nelem = track_type_nelem[trackid];

260 for(int i=0; i<nelem; i++) {

261 struct anm_keyframe *key = anm_get_keyframe(anim->tracks + track_type_base[trackid] + i, idx);

262 val[i] = key->val;

263 }

264 return nelem;

265 }

266

267 Vector3 XFormNode::get_position_key_value(int idx) const

268 {

269 float val[3];

270 get_key_value(POSITION_TRACK, idx, val);

271 return Vector3(val[0], val[1], val[2]);

272 }

273

274 Quaternion XFormNode::get_rotation_key_value(int idx) const

275 {

276 float val[4];

277 get_key_value(ROTATION_TRACK, idx, val);

278 return Quaternion(val[3], val[0], val[1], val[2]);

279 }

280

281 Vector3 XFormNode::get_scaling_key_value(int idx) const

282 {

283 float val[3];

284 get_key_value(SCALING_TRACK, idx, val);

285 return Vector3(val[0], val[1], val[2]);

286 }

287

288 void XFormNode::set_position(const Vector3 &pos, long tmsec)

289 {

290 anm_set_position(anm, v3_cons(pos.x, pos.y, pos.z), ANM_MSEC2TM(tmsec));

291 }

292

293 Vector3 XFormNode::get_node_position(long tmsec) const

294 {

295 vec3_t p = anm_get_node_position(anm, ANM_MSEC2TM(tmsec));

296 return Vector3(p.x, p.y, p.z);

297 }

298

299 void XFormNode::set_rotation(const Quaternion &quat, long tmsec)

300 {

301 anm_set_rotation(anm, quat_cons(quat.s, quat.v.x, quat.v.y, quat.v.z), ANM_MSEC2TM(tmsec));

302 }

303

304 Quaternion XFormNode::get_node_rotation(long tmsec) const

305 {

306 quat_t q = anm_get_node_rotation(anm, ANM_MSEC2TM(tmsec));

307 return Quaternion(q.w, q.x, q.y, q.z);

308 }

309

310 void XFormNode::set_scaling(const Vector3 &pos, long tmsec)

311 {

312 anm_set_scaling(anm, v3_cons(pos.x, pos.y, pos.z), ANM_MSEC2TM(tmsec));

313 }

314

315 Vector3 XFormNode::get_node_scaling(long tmsec) const

316 {

317 vec3_t s = anm_get_node_scaling(anm, ANM_MSEC2TM(tmsec));

318 return Vector3(s.x, s.y, s.z);

319 }

320

321 // these take hierarchy into account

322 Vector3 XFormNode::get_position(long tmsec) const

323 {

324 vec3_t v = anm_get_position(anm, ANM_MSEC2TM(tmsec));

325 return Vector3(v.x, v.y, v.z);

326 }

327

328 Quaternion XFormNode::get_rotation(long tmsec) const

329 {

330 quat_t q = anm_get_rotation(anm, tmsec);

331 return Quaternion(q.w, q.x, q.y, q.z);

332 }

333

334 Vector3 XFormNode::get_scaling(long tmsec) const

335 {

336 vec3_t v = anm_get_scaling(anm, ANM_MSEC2TM(tmsec));

337 return Vector3(v.x, v.y, v.z);

338 }

339

340 void XFormNode::set_pivot(const Vector3 &pivot)

341 {

342 anm_set_pivot(anm, v3_cons(pivot.x, pivot.y, pivot.z));

343 }

344

345 Vector3 XFormNode::get_pivot() const

346 {

347 vec3_t p = anm_get_pivot(anm);

348 return Vector3(p.x, p.y, p.z);

349 }

350

351 void XFormNode::set_local_matrix(const Matrix4x4 &mat)

352 {

353 local_matrix = mat;

354 }

355

356 const Matrix4x4 &XFormNode::get_local_matrix() const

357 {

358 return local_matrix;

359 }

360

361 void XFormNode::set_bone_matrix(const Matrix4x4 &bmat)

362 {

363 bone_matrix = bmat;

364 }

365

366 const Matrix4x4 &XFormNode::get_bone_matrix() const

367 {

368 return bone_matrix;

369 }

370

371 #define FOO

372

373 void XFormNode::get_node_xform(long tmsec, Matrix4x4 *mat, Matrix4x4 *inv_mat) const

374 {

375 anm_time_t tm = ANM_MSEC2TM(tmsec);

376

377 if(mat) {

378 anm_get_node_matrix(anm, (scalar_t(*)[4])mat, tm);

379 #ifdef FOO

380 *mat = local_matrix * *mat;

381 #else

382 *mat = *mat * local_matrix;

383 #endif

384 }

385 if(inv_mat) {

386 anm_get_inv_matrix(anm, (scalar_t(*)[4])inv_mat, tm);

387 }

388 }

389

390 void XFormNode::get_xform(long tmsec, Matrix4x4 *mat, Matrix4x4 *inv_mat) const

391 {

392 anm_time_t tm = ANM_MSEC2TM(tmsec);

393

394 if(mat) {

395 anm_get_matrix(anm, (scalar_t(*)[4])mat, tm);

396 #ifdef FOO

397 *mat = local_matrix * *mat;

398 #else

399 *mat = *mat * local_matrix;

400 #endif

401 }

402 if(inv_mat) {

403 anm_get_inv_matrix(anm, (scalar_t(*)[4])inv_mat, tm);

404 }

405 }

406

407

408 // ---- Track ----

409

410 Track::Track()

411 {

412 trk = new anm_track;

413 anm_init_track(trk);

414 }

415

416 Track::~Track()

417 {

418 anm_destroy_track(trk);

419 delete trk;

420 }

421

422 Track::Track(const Track &rhs)

423 {

424 trk = new anm_track;

425 anm_init_track(trk);

426 anm_copy_track(trk, rhs.trk);

427 interp = rhs.interp;

428 extrap = rhs.extrap;

429 }

430

431 Track &Track::operator =(const Track &rhs)

432 {

433 if(&rhs == this) {

434 return *this;

435 }

436

437 anm_copy_track(trk, rhs.trk);

438 interp = rhs.interp;

439 extrap = rhs.extrap;

440 return *this;

441 }

442

443

444 void Track::set_interpolator(Interp in)

445 {

446 anm_set_track_interpolator(trk, track_interpolator(in));

447 interp = in;

448 }

449

450 Interp Track::get_interpolator() const

451 {

452 return interp;

453 }

454

455 void Track::set_extrapolator(Extrap ex)

456 {

457 anm_set_track_extrapolator(trk, track_extrapolator(ex));

458 extrap = ex;

459 }

460

461 Extrap Track::get_extrapolator() const

462 {

463 return extrap;

464 }

465

466 void Track::set_default(double def)

467 {

468 anm_set_track_default(trk, def);

469 }

470

471 void Track::set_value(float val, long tmsec)

472 {

473 anm_set_value(trk, ANM_MSEC2TM(tmsec), val);

474 }

475

476 float Track::get_value(long tmsec) const

477 {

478 return anm_get_value(trk, ANM_MSEC2TM(tmsec));

479 }

480

481 float Track::operator ()(long tmsec) const

482 {

483 return anm_get_value(trk, ANM_MSEC2TM(tmsec));

484 }

485

486

487 // ---- Track3 ----

488

489 void Track3::set_interpolator(Interp in)

490 {

491 for(int i=0; i<3; i++) {

492 track[i].set_interpolator(in);

493 }

494 }

495

496 Interp Track3::get_interpolator() const

497 {

498 return track[0].get_interpolator();

499 }

500

501 void Track3::set_extrapolator(Extrap ex)

502 {

503 for(int i=0; i<3; i++) {

504 track[i].set_extrapolator(ex);

505 }

506 }

507

508 Extrap Track3::get_extrapolator() const

509 {

510 return track[0].get_extrapolator();

511 }

512

513 void Track3::set_default(const Vector3 &def)

514 {

515 for(int i=0; i<3; i++) {

516 track[i].set_default(def[i]);

517 }

518 }

519

520 void Track3::set_value(const Vector3 &val, long tmsec)

521 {

522 for(int i=0; i<3; i++) {

523 track[i].set_value(val[i], tmsec);

524 }

525 }

526

527 Vector3 Track3::get_value(long tmsec) const

528 {

529 return Vector3(track[0](tmsec), track[1](tmsec), track[2](tmsec));

530 }

531

532 Vector3 Track3::operator ()(long tmsec) const

533 {

534 return Vector3(track[0](tmsec), track[1](tmsec), track[2](tmsec));

535 }

536

537

538 static inline anm_interpolator track_interpolator(Interp in)

539 {

540 switch(in) {

541 case INTERP_STEP:

542 return ANM_INTERP_STEP;

543 case INTERP_LINEAR:

544 return ANM_INTERP_LINEAR;

545 case INTERP_CUBIC:

546 return ANM_INTERP_CUBIC;

547 }

548

549 assert(0);

550 return ANM_INTERP_STEP;

551 }

552

553 static inline anm_extrapolator track_extrapolator(Extrap ex)

554 {

555 switch(ex) {

556 case EXTRAP_EXTEND:

557 return ANM_EXTRAP_EXTEND;

558 case EXTRAP_CLAMP:

559 return ANM_EXTRAP_CLAMP;

560 case EXTRAP_REPEAT:

561 return ANM_EXTRAP_REPEAT;

562 }

563

564 assert(0);

565 return ANM_EXTRAP_EXTEND;

566 }

567