libanim

annotate src/anim.c @ 28:60a46a122b0f

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author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 17 Apr 2014 07:57:52 +0300
parents ebead35c9eb1
children 70ad14ba4df2
rev   line source
nuclear@28 1 /*
nuclear@28 2 libanim - hierarchical keyframe animation library
nuclear@28 3 Copyright (C) 2012-2014 John Tsiombikas <nuclear@member.fsf.org>
nuclear@28 4
nuclear@28 5 This program is free software: you can redistribute it and/or modify
nuclear@28 6 it under the terms of the GNU Lesser General Public License as published
nuclear@28 7 by the Free Software Foundation, either version 3 of the License, or
nuclear@28 8 (at your option) any later version.
nuclear@28 9
nuclear@28 10 This program is distributed in the hope that it will be useful,
nuclear@28 11 but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@28 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nuclear@28 13 GNU Lesser General Public License for more details.
nuclear@28 14
nuclear@28 15 You should have received a copy of the GNU Lesser General Public License
nuclear@28 16 along with this program. If not, see <http://www.gnu.org/licenses/>.
nuclear@28 17 */
nuclear@1 18 #include <stdlib.h>
nuclear@0 19 #include <limits.h>
nuclear@0 20 #include <assert.h>
nuclear@0 21 #include "anim.h"
nuclear@0 22 #include "dynarr.h"
nuclear@0 23
nuclear@7 24 #define ROT_USE_SLERP
nuclear@7 25
nuclear@0 26 static void invalidate_cache(struct anm_node *node);
nuclear@0 27
nuclear@21 28 int anm_init_animation(struct anm_animation *anim)
nuclear@0 29 {
nuclear@0 30 int i, j;
nuclear@0 31 static const float defaults[] = {
nuclear@0 32 0.0f, 0.0f, 0.0f, /* default position */
nuclear@0 33 0.0f, 0.0f, 0.0f, 1.0f, /* default rotation quat */
nuclear@0 34 1.0f, 1.0f, 1.0f /* default scale factor */
nuclear@0 35 };
nuclear@0 36
nuclear@21 37 anim->name = 0;
nuclear@21 38
nuclear@21 39 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 40 if(anm_init_track(anim->tracks + i) == -1) {
nuclear@21 41 for(j=0; j<i; j++) {
nuclear@21 42 anm_destroy_track(anim->tracks + i);
nuclear@21 43 }
nuclear@21 44 }
nuclear@21 45 anm_set_track_default(anim->tracks + i, defaults[i]);
nuclear@21 46 }
nuclear@21 47 return 0;
nuclear@21 48 }
nuclear@21 49
nuclear@21 50 void anm_destroy_animation(struct anm_animation *anim)
nuclear@21 51 {
nuclear@21 52 int i;
nuclear@21 53 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 54 anm_destroy_track(anim->tracks + i);
nuclear@21 55 }
nuclear@21 56 free(anim->name);
nuclear@21 57 }
nuclear@21 58
nuclear@22 59 void anm_set_animation_name(struct anm_animation *anim, const char *name)
nuclear@22 60 {
nuclear@22 61 char *newname = malloc(strlen(name) + 1);
nuclear@22 62 if(!newname) return;
nuclear@22 63
nuclear@23 64 strcpy(newname, name);
nuclear@23 65
nuclear@22 66 free(anim->name);
nuclear@22 67 anim->name = newname;
nuclear@22 68 }
nuclear@22 69
nuclear@21 70 /* ---- node implementation ----- */
nuclear@21 71
nuclear@21 72 int anm_init_node(struct anm_node *node)
nuclear@21 73 {
nuclear@0 74 memset(node, 0, sizeof *node);
nuclear@0 75
nuclear@21 76 node->cur_anim[1] = -1;
nuclear@21 77
nuclear@21 78 if(!(node->animations = dynarr_alloc(1, sizeof *node->animations))) {
nuclear@21 79 return -1;
nuclear@21 80 }
nuclear@21 81 if(anm_init_animation(node->animations) == -1) {
nuclear@21 82 dynarr_free(node->animations);
nuclear@21 83 return -1;
nuclear@21 84 }
nuclear@21 85
nuclear@0 86 /* initialize thread-local matrix cache */
nuclear@0 87 pthread_key_create(&node->cache_key, 0);
nuclear@10 88 pthread_mutex_init(&node->cache_list_lock, 0);
nuclear@0 89
nuclear@0 90 return 0;
nuclear@0 91 }
nuclear@0 92
nuclear@0 93 void anm_destroy_node(struct anm_node *node)
nuclear@0 94 {
nuclear@0 95 int i;
nuclear@0 96 free(node->name);
nuclear@0 97
nuclear@0 98 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 99 anm_destroy_animation(node->animations + i);
nuclear@0 100 }
nuclear@21 101 dynarr_free(node->animations);
nuclear@0 102
nuclear@0 103 /* destroy thread-specific cache */
nuclear@0 104 pthread_key_delete(node->cache_key);
nuclear@0 105
nuclear@0 106 while(node->cache_list) {
nuclear@0 107 struct mat_cache *tmp = node->cache_list;
nuclear@0 108 node->cache_list = tmp->next;
nuclear@0 109 free(tmp);
nuclear@0 110 }
nuclear@0 111 }
nuclear@0 112
nuclear@0 113 void anm_destroy_node_tree(struct anm_node *tree)
nuclear@0 114 {
nuclear@0 115 struct anm_node *c, *tmp;
nuclear@0 116
nuclear@0 117 if(!tree) return;
nuclear@0 118
nuclear@0 119 c = tree->child;
nuclear@0 120 while(c) {
nuclear@0 121 tmp = c;
nuclear@0 122 c = c->next;
nuclear@0 123
nuclear@0 124 anm_destroy_node_tree(tmp);
nuclear@0 125 }
nuclear@0 126 anm_destroy_node(tree);
nuclear@0 127 }
nuclear@0 128
nuclear@0 129 struct anm_node *anm_create_node(void)
nuclear@0 130 {
nuclear@0 131 struct anm_node *n;
nuclear@0 132
nuclear@0 133 if((n = malloc(sizeof *n))) {
nuclear@0 134 if(anm_init_node(n) == -1) {
nuclear@0 135 free(n);
nuclear@0 136 return 0;
nuclear@0 137 }
nuclear@0 138 }
nuclear@0 139 return n;
nuclear@0 140 }
nuclear@0 141
nuclear@0 142 void anm_free_node(struct anm_node *node)
nuclear@0 143 {
nuclear@0 144 anm_destroy_node(node);
nuclear@0 145 free(node);
nuclear@0 146 }
nuclear@0 147
nuclear@0 148 void anm_free_node_tree(struct anm_node *tree)
nuclear@0 149 {
nuclear@0 150 struct anm_node *c, *tmp;
nuclear@0 151
nuclear@0 152 if(!tree) return;
nuclear@0 153
nuclear@0 154 c = tree->child;
nuclear@0 155 while(c) {
nuclear@0 156 tmp = c;
nuclear@0 157 c = c->next;
nuclear@0 158
nuclear@0 159 anm_free_node_tree(tmp);
nuclear@0 160 }
nuclear@0 161
nuclear@0 162 anm_free_node(tree);
nuclear@0 163 }
nuclear@0 164
nuclear@0 165 int anm_set_node_name(struct anm_node *node, const char *name)
nuclear@0 166 {
nuclear@0 167 char *str;
nuclear@0 168
nuclear@0 169 if(!(str = malloc(strlen(name) + 1))) {
nuclear@0 170 return -1;
nuclear@0 171 }
nuclear@0 172 strcpy(str, name);
nuclear@0 173 free(node->name);
nuclear@0 174 node->name = str;
nuclear@0 175 return 0;
nuclear@0 176 }
nuclear@0 177
nuclear@0 178 const char *anm_get_node_name(struct anm_node *node)
nuclear@0 179 {
nuclear@0 180 return node->name ? node->name : "";
nuclear@0 181 }
nuclear@0 182
nuclear@0 183 void anm_link_node(struct anm_node *p, struct anm_node *c)
nuclear@0 184 {
nuclear@0 185 c->next = p->child;
nuclear@0 186 p->child = c;
nuclear@0 187
nuclear@0 188 c->parent = p;
nuclear@0 189 invalidate_cache(c);
nuclear@0 190 }
nuclear@0 191
nuclear@0 192 int anm_unlink_node(struct anm_node *p, struct anm_node *c)
nuclear@0 193 {
nuclear@0 194 struct anm_node *iter;
nuclear@0 195
nuclear@0 196 if(p->child == c) {
nuclear@0 197 p->child = c->next;
nuclear@0 198 c->next = 0;
nuclear@0 199 invalidate_cache(c);
nuclear@0 200 return 0;
nuclear@0 201 }
nuclear@0 202
nuclear@0 203 iter = p->child;
nuclear@0 204 while(iter->next) {
nuclear@0 205 if(iter->next == c) {
nuclear@0 206 iter->next = c->next;
nuclear@0 207 c->next = 0;
nuclear@0 208 invalidate_cache(c);
nuclear@0 209 return 0;
nuclear@0 210 }
nuclear@0 211 }
nuclear@0 212 return -1;
nuclear@0 213 }
nuclear@0 214
nuclear@21 215 void anm_set_pivot(struct anm_node *node, vec3_t piv)
nuclear@21 216 {
nuclear@21 217 node->pivot = piv;
nuclear@21 218 }
nuclear@21 219
nuclear@21 220 vec3_t anm_get_pivot(struct anm_node *node)
nuclear@21 221 {
nuclear@21 222 return node->pivot;
nuclear@21 223 }
nuclear@21 224
nuclear@21 225
nuclear@21 226 /* animation management */
nuclear@21 227
nuclear@21 228 int anm_use_node_animation(struct anm_node *node, int aidx)
nuclear@21 229 {
nuclear@21 230 if(aidx == node->cur_anim[0] && node->cur_anim[1] == -1) {
nuclear@21 231 return 0; /* no change, no invalidation */
nuclear@21 232 }
nuclear@21 233
nuclear@21 234 if(aidx < 0 || aidx >= anm_get_animation_count(node)) {
nuclear@21 235 return -1;
nuclear@21 236 }
nuclear@21 237
nuclear@21 238 node->cur_anim[0] = aidx;
nuclear@21 239 node->cur_anim[1] = -1;
nuclear@21 240 node->cur_mix = 0;
nuclear@24 241 node->blend_dur = -1;
nuclear@21 242
nuclear@21 243 invalidate_cache(node);
nuclear@21 244 return 0;
nuclear@21 245 }
nuclear@21 246
nuclear@21 247 int anm_use_node_animations(struct anm_node *node, int aidx, int bidx, float t)
nuclear@21 248 {
nuclear@21 249 int num_anim;
nuclear@21 250
nuclear@21 251 if(node->cur_anim[0] == aidx && node->cur_anim[1] == bidx &&
nuclear@21 252 fabs(t - node->cur_mix) < 1e-6) {
nuclear@21 253 return 0; /* no change, no invalidation */
nuclear@21 254 }
nuclear@21 255
nuclear@21 256 num_anim = anm_get_animation_count(node);
nuclear@21 257 if(aidx < 0 || aidx >= num_anim) {
nuclear@21 258 return anm_use_animation(node, bidx);
nuclear@21 259 }
nuclear@21 260 if(bidx < 0 || bidx >= num_anim) {
nuclear@21 261 return anm_use_animation(node, aidx);
nuclear@21 262 }
nuclear@21 263 node->cur_anim[0] = aidx;
nuclear@21 264 node->cur_anim[1] = bidx;
nuclear@21 265 node->cur_mix = t;
nuclear@21 266
nuclear@21 267 invalidate_cache(node);
nuclear@21 268 return 0;
nuclear@21 269 }
nuclear@21 270
nuclear@21 271 int anm_use_animation(struct anm_node *node, int aidx)
nuclear@21 272 {
nuclear@21 273 struct anm_node *child;
nuclear@21 274
nuclear@21 275 if(anm_use_node_animation(node, aidx) == -1) {
nuclear@21 276 return -1;
nuclear@21 277 }
nuclear@21 278
nuclear@21 279 child = node->child;
nuclear@21 280 while(child) {
nuclear@21 281 if(anm_use_animation(child, aidx) == -1) {
nuclear@21 282 return -1;
nuclear@21 283 }
nuclear@21 284 child = child->next;
nuclear@21 285 }
nuclear@21 286 return 0;
nuclear@21 287 }
nuclear@21 288
nuclear@21 289 int anm_use_animations(struct anm_node *node, int aidx, int bidx, float t)
nuclear@21 290 {
nuclear@21 291 struct anm_node *child;
nuclear@21 292
nuclear@21 293 if(anm_use_node_animations(node, aidx, bidx, t) == -1) {
nuclear@21 294 return -1;
nuclear@21 295 }
nuclear@21 296
nuclear@21 297 child = node->child;
nuclear@21 298 while(child) {
nuclear@21 299 if(anm_use_animations(child, aidx, bidx, t) == -1) {
nuclear@21 300 return -1;
nuclear@21 301 }
nuclear@21 302 child = child->next;
nuclear@21 303 }
nuclear@21 304 return 0;
nuclear@21 305
nuclear@21 306 }
nuclear@21 307
nuclear@24 308 void anm_set_node_animation_offset(struct anm_node *node, anm_time_t offs, int which)
nuclear@24 309 {
nuclear@24 310 if(which < 0 || which >= 2) {
nuclear@24 311 return;
nuclear@24 312 }
nuclear@24 313 node->cur_anim_offset[which] = offs;
nuclear@24 314 }
nuclear@24 315
nuclear@24 316 anm_time_t anm_get_animation_offset(const struct anm_node *node, int which)
nuclear@24 317 {
nuclear@24 318 if(which < 0 || which >= 2) {
nuclear@24 319 return 0;
nuclear@24 320 }
nuclear@24 321 return node->cur_anim_offset[which];
nuclear@24 322 }
nuclear@24 323
nuclear@24 324 void anm_set_animation_offset(struct anm_node *node, anm_time_t offs, int which)
nuclear@24 325 {
nuclear@24 326 struct anm_node *c = node->child;
nuclear@24 327 while(c) {
nuclear@24 328 anm_set_animation_offset(c, offs, which);
nuclear@24 329 c = c->next;
nuclear@24 330 }
nuclear@24 331
nuclear@24 332 anm_set_node_animation_offset(node, offs, which);
nuclear@24 333 }
nuclear@24 334
nuclear@24 335 int anm_get_active_animation_index(const struct anm_node *node, int which)
nuclear@21 336 {
nuclear@21 337 if(which < 0 || which >= 2) return -1;
nuclear@21 338 return node->cur_anim[which];
nuclear@21 339 }
nuclear@21 340
nuclear@24 341 struct anm_animation *anm_get_active_animation(const struct anm_node *node, int which)
nuclear@21 342 {
nuclear@21 343 int idx = anm_get_active_animation_index(node, which);
nuclear@21 344 if(idx < 0 || idx >= anm_get_animation_count(node)) {
nuclear@21 345 return 0;
nuclear@21 346 }
nuclear@21 347 return node->animations + idx;
nuclear@21 348 }
nuclear@21 349
nuclear@24 350 float anm_get_active_animation_mix(const struct anm_node *node)
nuclear@21 351 {
nuclear@21 352 return node->cur_mix;
nuclear@21 353 }
nuclear@21 354
nuclear@24 355 int anm_get_animation_count(const struct anm_node *node)
nuclear@21 356 {
nuclear@21 357 return dynarr_size(node->animations);
nuclear@21 358 }
nuclear@21 359
nuclear@21 360 int anm_add_node_animation(struct anm_node *node)
nuclear@21 361 {
nuclear@21 362 struct anm_animation newanim;
nuclear@21 363 anm_init_animation(&newanim);
nuclear@21 364
nuclear@21 365 node->animations = dynarr_push(node->animations, &newanim);
nuclear@21 366 return 0;
nuclear@21 367 }
nuclear@21 368
nuclear@21 369 int anm_remove_node_animation(struct anm_node *node, int idx)
nuclear@21 370 {
nuclear@21 371 fprintf(stderr, "anm_remove_animation: unimplemented!");
nuclear@21 372 abort();
nuclear@21 373 return 0;
nuclear@21 374 }
nuclear@21 375
nuclear@21 376 int anm_add_animation(struct anm_node *node)
nuclear@21 377 {
nuclear@21 378 struct anm_node *child;
nuclear@21 379
nuclear@21 380 if(anm_add_node_animation(node) == -1) {
nuclear@21 381 return -1;
nuclear@21 382 }
nuclear@21 383
nuclear@21 384 child = node->child;
nuclear@21 385 while(child) {
nuclear@21 386 if(anm_add_animation(child)) {
nuclear@21 387 return -1;
nuclear@21 388 }
nuclear@21 389 child = child->next;
nuclear@21 390 }
nuclear@21 391 return 0;
nuclear@21 392 }
nuclear@21 393
nuclear@21 394 int anm_remove_animation(struct anm_node *node, int idx)
nuclear@21 395 {
nuclear@21 396 struct anm_node *child;
nuclear@21 397
nuclear@21 398 if(anm_remove_node_animation(node, idx) == -1) {
nuclear@21 399 return -1;
nuclear@21 400 }
nuclear@21 401
nuclear@21 402 child = node->child;
nuclear@21 403 while(child) {
nuclear@21 404 if(anm_remove_animation(child, idx) == -1) {
nuclear@21 405 return -1;
nuclear@21 406 }
nuclear@21 407 child = child->next;
nuclear@21 408 }
nuclear@21 409 return 0;
nuclear@21 410 }
nuclear@21 411
nuclear@21 412 struct anm_animation *anm_get_animation(struct anm_node *node, int idx)
nuclear@21 413 {
nuclear@21 414 if(idx < 0 || idx > anm_get_animation_count(node)) {
nuclear@21 415 return 0;
nuclear@21 416 }
nuclear@21 417 return node->animations + idx;
nuclear@21 418 }
nuclear@21 419
nuclear@21 420 struct anm_animation *anm_get_animation_by_name(struct anm_node *node, const char *name)
nuclear@21 421 {
nuclear@21 422 return anm_get_animation(node, anm_find_animation(node, name));
nuclear@21 423 }
nuclear@21 424
nuclear@21 425 int anm_find_animation(struct anm_node *node, const char *name)
nuclear@21 426 {
nuclear@21 427 int i, count = anm_get_animation_count(node);
nuclear@21 428 for(i=0; i<count; i++) {
nuclear@21 429 if(strcmp(node->animations[i].name, name) == 0) {
nuclear@21 430 return i;
nuclear@21 431 }
nuclear@21 432 }
nuclear@21 433 return -1;
nuclear@21 434 }
nuclear@21 435
nuclear@21 436 /* all the rest act on the current animation(s) */
nuclear@21 437
nuclear@21 438 void anm_set_interpolator(struct anm_node *node, enum anm_interpolator in)
nuclear@21 439 {
nuclear@21 440 int i;
nuclear@21 441 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 442 if(!anim) return;
nuclear@21 443
nuclear@21 444 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 445 anm_set_track_interpolator(anim->tracks + i, in);
nuclear@21 446 }
nuclear@21 447 invalidate_cache(node);
nuclear@21 448 }
nuclear@21 449
nuclear@21 450 void anm_set_extrapolator(struct anm_node *node, enum anm_extrapolator ex)
nuclear@21 451 {
nuclear@21 452 int i;
nuclear@21 453 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 454 if(!anim) return;
nuclear@21 455
nuclear@21 456 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 457 anm_set_track_extrapolator(anim->tracks + i, ex);
nuclear@21 458 }
nuclear@21 459 invalidate_cache(node);
nuclear@21 460 }
nuclear@21 461
nuclear@23 462 void anm_set_node_active_animation_name(struct anm_node *node, const char *name)
nuclear@23 463 {
nuclear@23 464 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@23 465 if(!anim) return;
nuclear@23 466
nuclear@23 467 anm_set_animation_name(anim, name);
nuclear@23 468 }
nuclear@23 469
nuclear@23 470 void anm_set_active_animation_name(struct anm_node *node, const char *name)
nuclear@23 471 {
nuclear@23 472 struct anm_node *child;
nuclear@23 473
nuclear@23 474 anm_set_node_active_animation_name(node, name);
nuclear@23 475
nuclear@23 476 child = node->child;
nuclear@23 477 while(child) {
nuclear@23 478 anm_set_active_animation_name(child, name);
nuclear@23 479 child = child->next;
nuclear@23 480 }
nuclear@23 481 }
nuclear@23 482
nuclear@23 483 const char *anm_get_active_animation_name(struct anm_node *node)
nuclear@23 484 {
nuclear@23 485 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@23 486 if(anim) {
nuclear@23 487 return anim->name;
nuclear@23 488 }
nuclear@23 489 return 0;
nuclear@23 490 }
nuclear@23 491
nuclear@24 492 /* ---- high level animation blending ---- */
nuclear@24 493 void anm_transition(struct anm_node *node, int anmidx, anm_time_t start, anm_time_t dur)
nuclear@24 494 {
nuclear@24 495 struct anm_node *c = node->child;
nuclear@25 496
nuclear@25 497 if(anmidx == node->cur_anim[0]) {
nuclear@25 498 return;
nuclear@25 499 }
nuclear@25 500
nuclear@24 501 while(c) {
nuclear@24 502 anm_transition(c, anmidx, start, dur);
nuclear@24 503 c = c->next;
nuclear@24 504 }
nuclear@24 505
nuclear@24 506 anm_node_transition(node, anmidx, start, dur);
nuclear@24 507 }
nuclear@24 508
nuclear@24 509 void anm_node_transition(struct anm_node *node, int anmidx, anm_time_t start, anm_time_t dur)
nuclear@24 510 {
nuclear@25 511 if(anmidx == node->cur_anim[0]) {
nuclear@25 512 return;
nuclear@25 513 }
nuclear@25 514
nuclear@24 515 node->cur_anim[1] = anmidx;
nuclear@24 516 node->cur_anim_offset[1] = start;
nuclear@24 517 node->blend_dur = dur;
nuclear@24 518 }
nuclear@24 519
nuclear@24 520
nuclear@24 521 #define BLEND_START_TM node->cur_anim_offset[1]
nuclear@24 522
nuclear@24 523 static anm_time_t animation_time(struct anm_node *node, anm_time_t tm, int which)
nuclear@24 524 {
nuclear@24 525 float t;
nuclear@24 526
nuclear@24 527 if(node->blend_dur >= 0) {
nuclear@24 528 /* we're in transition... */
nuclear@24 529 t = (float)(tm - BLEND_START_TM) / (float)node->blend_dur;
nuclear@24 530 if(t < 0.0) t = 0.0;
nuclear@24 531
nuclear@24 532 node->cur_mix = t;
nuclear@24 533
nuclear@24 534 if(t > 1.0) {
nuclear@24 535 /* switch completely over to the target animation and stop blending */
nuclear@24 536 anm_use_node_animation(node, node->cur_anim[1]);
nuclear@24 537 node->cur_anim_offset[0] = node->cur_anim_offset[1];
nuclear@24 538 }
nuclear@24 539 }
nuclear@24 540
nuclear@24 541 return tm - node->cur_anim_offset[which];
nuclear@24 542 }
nuclear@24 543
nuclear@24 544
nuclear@0 545 void anm_set_position(struct anm_node *node, vec3_t pos, anm_time_t tm)
nuclear@0 546 {
nuclear@21 547 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 548 if(!anim) return;
nuclear@21 549
nuclear@21 550 anm_set_value(anim->tracks + ANM_TRACK_POS_X, tm, pos.x);
nuclear@21 551 anm_set_value(anim->tracks + ANM_TRACK_POS_Y, tm, pos.y);
nuclear@21 552 anm_set_value(anim->tracks + ANM_TRACK_POS_Z, tm, pos.z);
nuclear@0 553 invalidate_cache(node);
nuclear@0 554 }
nuclear@0 555
nuclear@24 556
nuclear@0 557 vec3_t anm_get_node_position(struct anm_node *node, anm_time_t tm)
nuclear@0 558 {
nuclear@0 559 vec3_t v;
nuclear@24 560 anm_time_t tm0 = animation_time(node, tm, 0);
nuclear@21 561 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@21 562 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@21 563
nuclear@21 564 if(!anim0) {
nuclear@21 565 return v3_cons(0, 0, 0);
nuclear@21 566 }
nuclear@21 567
nuclear@24 568 v.x = anm_get_value(anim0->tracks + ANM_TRACK_POS_X, tm0);
nuclear@24 569 v.y = anm_get_value(anim0->tracks + ANM_TRACK_POS_Y, tm0);
nuclear@24 570 v.z = anm_get_value(anim0->tracks + ANM_TRACK_POS_Z, tm0);
nuclear@21 571
nuclear@21 572 if(anim1) {
nuclear@21 573 vec3_t v1;
nuclear@24 574 anm_time_t tm1 = animation_time(node, tm, 1);
nuclear@24 575 v1.x = anm_get_value(anim1->tracks + ANM_TRACK_POS_X, tm1);
nuclear@24 576 v1.y = anm_get_value(anim1->tracks + ANM_TRACK_POS_Y, tm1);
nuclear@24 577 v1.z = anm_get_value(anim1->tracks + ANM_TRACK_POS_Z, tm1);
nuclear@21 578
nuclear@21 579 v.x = v.x + (v1.x - v.x) * node->cur_mix;
nuclear@21 580 v.y = v.y + (v1.y - v.y) * node->cur_mix;
nuclear@21 581 v.z = v.z + (v1.z - v.z) * node->cur_mix;
nuclear@21 582 }
nuclear@21 583
nuclear@0 584 return v;
nuclear@0 585 }
nuclear@0 586
nuclear@0 587 void anm_set_rotation(struct anm_node *node, quat_t rot, anm_time_t tm)
nuclear@0 588 {
nuclear@21 589 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 590 if(!anim) return;
nuclear@21 591
nuclear@21 592 anm_set_value(anim->tracks + ANM_TRACK_ROT_X, tm, rot.x);
nuclear@21 593 anm_set_value(anim->tracks + ANM_TRACK_ROT_Y, tm, rot.y);
nuclear@21 594 anm_set_value(anim->tracks + ANM_TRACK_ROT_Z, tm, rot.z);
nuclear@21 595 anm_set_value(anim->tracks + ANM_TRACK_ROT_W, tm, rot.w);
nuclear@0 596 invalidate_cache(node);
nuclear@0 597 }
nuclear@0 598
nuclear@21 599 static quat_t get_node_rotation(struct anm_node *node, anm_time_t tm, struct anm_animation *anim)
nuclear@0 600 {
nuclear@7 601 #ifndef ROT_USE_SLERP
nuclear@7 602 quat_t q;
nuclear@21 603 q.x = anm_get_value(anim->tracks + ANM_TRACK_ROT_X, tm);
nuclear@21 604 q.y = anm_get_value(anim->tracks + ANM_TRACK_ROT_Y, tm);
nuclear@21 605 q.z = anm_get_value(anim->tracks + ANM_TRACK_ROT_Z, tm);
nuclear@21 606 q.w = anm_get_value(anim->tracks + ANM_TRACK_ROT_W, tm);
nuclear@7 607 return q;
nuclear@7 608 #else
nuclear@0 609 int idx0, idx1, last_idx;
nuclear@0 610 anm_time_t tstart, tend;
nuclear@0 611 float t, dt;
nuclear@0 612 struct anm_track *track_x, *track_y, *track_z, *track_w;
nuclear@0 613 quat_t q, q1, q2;
nuclear@0 614
nuclear@21 615 track_x = anim->tracks + ANM_TRACK_ROT_X;
nuclear@21 616 track_y = anim->tracks + ANM_TRACK_ROT_Y;
nuclear@21 617 track_z = anim->tracks + ANM_TRACK_ROT_Z;
nuclear@21 618 track_w = anim->tracks + ANM_TRACK_ROT_W;
nuclear@0 619
nuclear@0 620 if(!track_x->count) {
nuclear@0 621 q.x = track_x->def_val;
nuclear@0 622 q.y = track_y->def_val;
nuclear@0 623 q.z = track_z->def_val;
nuclear@0 624 q.w = track_w->def_val;
nuclear@0 625 return q;
nuclear@0 626 }
nuclear@0 627
nuclear@0 628 last_idx = track_x->count - 1;
nuclear@0 629
nuclear@0 630 tstart = track_x->keys[0].time;
nuclear@0 631 tend = track_x->keys[last_idx].time;
nuclear@6 632
nuclear@6 633 if(tstart == tend) {
nuclear@6 634 q.x = track_x->keys[0].val;
nuclear@6 635 q.y = track_y->keys[0].val;
nuclear@6 636 q.z = track_z->keys[0].val;
nuclear@6 637 q.w = track_w->keys[0].val;
nuclear@6 638 return q;
nuclear@6 639 }
nuclear@6 640
nuclear@0 641 tm = anm_remap_time(track_x, tm, tstart, tend);
nuclear@0 642
nuclear@0 643 idx0 = anm_get_key_interval(track_x, tm);
nuclear@0 644 assert(idx0 >= 0 && idx0 < track_x->count);
nuclear@0 645 idx1 = idx0 + 1;
nuclear@0 646
nuclear@6 647 if(idx0 == last_idx) {
nuclear@6 648 q.x = track_x->keys[idx0].val;
nuclear@6 649 q.y = track_y->keys[idx0].val;
nuclear@6 650 q.z = track_z->keys[idx0].val;
nuclear@6 651 q.w = track_w->keys[idx0].val;
nuclear@6 652 return q;
nuclear@6 653 }
nuclear@6 654
nuclear@0 655 dt = (float)(track_x->keys[idx1].time - track_x->keys[idx0].time);
nuclear@0 656 t = (float)(tm - track_x->keys[idx0].time) / dt;
nuclear@0 657
nuclear@0 658 q1.x = track_x->keys[idx0].val;
nuclear@0 659 q1.y = track_y->keys[idx0].val;
nuclear@0 660 q1.z = track_z->keys[idx0].val;
nuclear@0 661 q1.w = track_w->keys[idx0].val;
nuclear@0 662
nuclear@0 663 q2.x = track_x->keys[idx1].val;
nuclear@0 664 q2.y = track_y->keys[idx1].val;
nuclear@0 665 q2.z = track_z->keys[idx1].val;
nuclear@0 666 q2.w = track_w->keys[idx1].val;
nuclear@0 667
nuclear@9 668 /*q1 = quat_normalize(q1);
nuclear@9 669 q2 = quat_normalize(q2);*/
nuclear@9 670
nuclear@0 671 return quat_slerp(q1, q2, t);
nuclear@7 672 #endif
nuclear@0 673 }
nuclear@0 674
nuclear@21 675 quat_t anm_get_node_rotation(struct anm_node *node, anm_time_t tm)
nuclear@21 676 {
nuclear@21 677 quat_t q;
nuclear@24 678 anm_time_t tm0 = animation_time(node, tm, 0);
nuclear@21 679 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@21 680 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@21 681
nuclear@21 682 if(!anim0) {
nuclear@21 683 return quat_identity();
nuclear@21 684 }
nuclear@21 685
nuclear@24 686 q = get_node_rotation(node, tm0, anim0);
nuclear@21 687
nuclear@21 688 if(anim1) {
nuclear@24 689 anm_time_t tm1 = animation_time(node, tm, 1);
nuclear@24 690 quat_t q1 = get_node_rotation(node, tm1, anim1);
nuclear@21 691
nuclear@21 692 q = quat_slerp(q, q1, node->cur_mix);
nuclear@21 693 }
nuclear@21 694 return q;
nuclear@21 695 }
nuclear@21 696
nuclear@0 697 void anm_set_scaling(struct anm_node *node, vec3_t scl, anm_time_t tm)
nuclear@0 698 {
nuclear@21 699 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 700 if(!anim) return;
nuclear@21 701
nuclear@21 702 anm_set_value(anim->tracks + ANM_TRACK_SCL_X, tm, scl.x);
nuclear@21 703 anm_set_value(anim->tracks + ANM_TRACK_SCL_Y, tm, scl.y);
nuclear@21 704 anm_set_value(anim->tracks + ANM_TRACK_SCL_Z, tm, scl.z);
nuclear@0 705 invalidate_cache(node);
nuclear@0 706 }
nuclear@0 707
nuclear@0 708 vec3_t anm_get_node_scaling(struct anm_node *node, anm_time_t tm)
nuclear@0 709 {
nuclear@0 710 vec3_t v;
nuclear@24 711 anm_time_t tm0 = animation_time(node, tm, 0);
nuclear@21 712 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@21 713 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@21 714
nuclear@21 715 if(!anim0) {
nuclear@21 716 return v3_cons(1, 1, 1);
nuclear@21 717 }
nuclear@21 718
nuclear@24 719 v.x = anm_get_value(anim0->tracks + ANM_TRACK_SCL_X, tm0);
nuclear@24 720 v.y = anm_get_value(anim0->tracks + ANM_TRACK_SCL_Y, tm0);
nuclear@24 721 v.z = anm_get_value(anim0->tracks + ANM_TRACK_SCL_Z, tm0);
nuclear@21 722
nuclear@21 723 if(anim1) {
nuclear@21 724 vec3_t v1;
nuclear@24 725 anm_time_t tm1 = animation_time(node, tm, 1);
nuclear@24 726 v1.x = anm_get_value(anim1->tracks + ANM_TRACK_SCL_X, tm1);
nuclear@24 727 v1.y = anm_get_value(anim1->tracks + ANM_TRACK_SCL_Y, tm1);
nuclear@24 728 v1.z = anm_get_value(anim1->tracks + ANM_TRACK_SCL_Z, tm1);
nuclear@21 729
nuclear@21 730 v.x = v.x + (v1.x - v.x) * node->cur_mix;
nuclear@21 731 v.y = v.y + (v1.y - v.y) * node->cur_mix;
nuclear@21 732 v.z = v.z + (v1.z - v.z) * node->cur_mix;
nuclear@21 733 }
nuclear@21 734
nuclear@0 735 return v;
nuclear@0 736 }
nuclear@0 737
nuclear@0 738
nuclear@0 739 vec3_t anm_get_position(struct anm_node *node, anm_time_t tm)
nuclear@0 740 {
nuclear@0 741 mat4_t xform;
nuclear@0 742 vec3_t pos = {0.0, 0.0, 0.0};
nuclear@0 743
nuclear@0 744 if(!node->parent) {
nuclear@0 745 return anm_get_node_position(node, tm);
nuclear@0 746 }
nuclear@0 747
nuclear@0 748 anm_get_matrix(node, xform, tm);
nuclear@0 749 return v3_transform(pos, xform);
nuclear@0 750 }
nuclear@0 751
nuclear@0 752 quat_t anm_get_rotation(struct anm_node *node, anm_time_t tm)
nuclear@0 753 {
nuclear@0 754 quat_t rot, prot;
nuclear@0 755 rot = anm_get_node_rotation(node, tm);
nuclear@0 756
nuclear@0 757 if(!node->parent) {
nuclear@0 758 return rot;
nuclear@0 759 }
nuclear@0 760
nuclear@0 761 prot = anm_get_rotation(node->parent, tm);
nuclear@0 762 return quat_mul(prot, rot);
nuclear@0 763 }
nuclear@0 764
nuclear@0 765 vec3_t anm_get_scaling(struct anm_node *node, anm_time_t tm)
nuclear@0 766 {
nuclear@0 767 vec3_t s, ps;
nuclear@0 768 s = anm_get_node_scaling(node, tm);
nuclear@0 769
nuclear@0 770 if(!node->parent) {
nuclear@0 771 return s;
nuclear@0 772 }
nuclear@0 773
nuclear@0 774 ps = anm_get_scaling(node->parent, tm);
nuclear@0 775 return v3_mul(s, ps);
nuclear@0 776 }
nuclear@0 777
nuclear@5 778 void anm_get_node_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@5 779 {
nuclear@9 780 int i;
nuclear@9 781 mat4_t rmat;
nuclear@5 782 vec3_t pos, scale;
nuclear@5 783 quat_t rot;
nuclear@5 784
nuclear@5 785 pos = anm_get_node_position(node, tm);
nuclear@5 786 rot = anm_get_node_rotation(node, tm);
nuclear@5 787 scale = anm_get_node_scaling(node, tm);
nuclear@5 788
nuclear@9 789 m4_set_translation(mat, node->pivot.x, node->pivot.y, node->pivot.z);
nuclear@5 790
nuclear@5 791 quat_to_mat4(rmat, rot);
nuclear@9 792 for(i=0; i<3; i++) {
nuclear@9 793 mat[i][0] = rmat[i][0];
nuclear@9 794 mat[i][1] = rmat[i][1];
nuclear@9 795 mat[i][2] = rmat[i][2];
nuclear@9 796 }
nuclear@9 797 /* this loop is equivalent to: m4_mult(mat, mat, rmat); */
nuclear@5 798
nuclear@9 799 mat[0][0] *= scale.x; mat[0][1] *= scale.y; mat[0][2] *= scale.z; mat[0][3] += pos.x;
nuclear@9 800 mat[1][0] *= scale.x; mat[1][1] *= scale.y; mat[1][2] *= scale.z; mat[1][3] += pos.y;
nuclear@9 801 mat[2][0] *= scale.x; mat[2][1] *= scale.y; mat[2][2] *= scale.z; mat[2][3] += pos.z;
nuclear@9 802
nuclear@9 803 m4_translate(mat, -node->pivot.x, -node->pivot.y, -node->pivot.z);
nuclear@9 804
nuclear@9 805 /* that's basically: pivot * rotation * translation * scaling * -pivot */
nuclear@5 806 }
nuclear@5 807
nuclear@5 808 void anm_get_node_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@5 809 {
nuclear@5 810 mat4_t tmp;
nuclear@5 811 anm_get_node_matrix(node, tmp, tm);
nuclear@5 812 m4_inverse(mat, tmp);
nuclear@5 813 }
nuclear@5 814
nuclear@20 815 void anm_eval_node(struct anm_node *node, anm_time_t tm)
nuclear@20 816 {
nuclear@20 817 anm_get_node_matrix(node, node->matrix, tm);
nuclear@20 818 }
nuclear@20 819
nuclear@20 820 void anm_eval(struct anm_node *node, anm_time_t tm)
nuclear@20 821 {
nuclear@20 822 struct anm_node *c;
nuclear@20 823
nuclear@20 824 anm_eval_node(node, tm);
nuclear@20 825
nuclear@20 826 if(node->parent) {
nuclear@20 827 /* due to post-order traversal, the parent matrix is already evaluated */
nuclear@20 828 m4_mult(node->matrix, node->parent->matrix, node->matrix);
nuclear@20 829 }
nuclear@20 830
nuclear@20 831 /* recersively evaluate all children */
nuclear@20 832 c = node->child;
nuclear@20 833 while(c) {
nuclear@20 834 anm_eval(c, tm);
nuclear@20 835 c = c->next;
nuclear@20 836 }
nuclear@20 837 }
nuclear@20 838
nuclear@0 839 void anm_get_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@0 840 {
nuclear@0 841 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@0 842 if(!cache) {
nuclear@0 843 cache = malloc(sizeof *cache);
nuclear@0 844 assert(cache);
nuclear@0 845
nuclear@0 846 pthread_mutex_lock(&node->cache_list_lock);
nuclear@0 847 cache->next = node->cache_list;
nuclear@0 848 node->cache_list = cache;
nuclear@0 849 pthread_mutex_unlock(&node->cache_list_lock);
nuclear@0 850
nuclear@0 851 cache->time = ANM_TIME_INVAL;
nuclear@2 852 cache->inv_time = ANM_TIME_INVAL;
nuclear@0 853 pthread_setspecific(node->cache_key, cache);
nuclear@0 854 }
nuclear@0 855
nuclear@0 856 if(cache->time != tm) {
nuclear@5 857 anm_get_node_matrix(node, cache->matrix, tm);
nuclear@0 858
nuclear@0 859 if(node->parent) {
nuclear@0 860 mat4_t parent_mat;
nuclear@0 861
nuclear@4 862 anm_get_matrix(node->parent, parent_mat, tm);
nuclear@0 863 m4_mult(cache->matrix, parent_mat, cache->matrix);
nuclear@0 864 }
nuclear@0 865 cache->time = tm;
nuclear@0 866 }
nuclear@0 867 m4_copy(mat, cache->matrix);
nuclear@0 868 }
nuclear@0 869
nuclear@0 870 void anm_get_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@0 871 {
nuclear@0 872 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@0 873 if(!cache) {
nuclear@0 874 cache = malloc(sizeof *cache);
nuclear@0 875 assert(cache);
nuclear@0 876
nuclear@0 877 pthread_mutex_lock(&node->cache_list_lock);
nuclear@0 878 cache->next = node->cache_list;
nuclear@0 879 node->cache_list = cache;
nuclear@0 880 pthread_mutex_unlock(&node->cache_list_lock);
nuclear@0 881
nuclear@0 882 cache->inv_time = ANM_TIME_INVAL;
nuclear@2 883 cache->inv_time = ANM_TIME_INVAL;
nuclear@0 884 pthread_setspecific(node->cache_key, cache);
nuclear@0 885 }
nuclear@0 886
nuclear@0 887 if(cache->inv_time != tm) {
nuclear@0 888 anm_get_matrix(node, mat, tm);
nuclear@0 889 m4_inverse(cache->inv_matrix, mat);
nuclear@0 890 cache->inv_time = tm;
nuclear@0 891 }
nuclear@0 892 m4_copy(mat, cache->inv_matrix);
nuclear@0 893 }
nuclear@0 894
nuclear@0 895 anm_time_t anm_get_start_time(struct anm_node *node)
nuclear@0 896 {
nuclear@21 897 int i, j;
nuclear@0 898 struct anm_node *c;
nuclear@0 899 anm_time_t res = LONG_MAX;
nuclear@0 900
nuclear@21 901 for(j=0; j<2; j++) {
nuclear@21 902 struct anm_animation *anim = anm_get_active_animation(node, j);
nuclear@21 903 if(!anim) break;
nuclear@21 904
nuclear@21 905 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 906 if(anim->tracks[i].count) {
nuclear@21 907 anm_time_t tm = anim->tracks[i].keys[0].time;
nuclear@21 908 if(tm < res) {
nuclear@21 909 res = tm;
nuclear@21 910 }
nuclear@0 911 }
nuclear@0 912 }
nuclear@0 913 }
nuclear@0 914
nuclear@0 915 c = node->child;
nuclear@0 916 while(c) {
nuclear@0 917 anm_time_t tm = anm_get_start_time(c);
nuclear@0 918 if(tm < res) {
nuclear@0 919 res = tm;
nuclear@0 920 }
nuclear@0 921 c = c->next;
nuclear@0 922 }
nuclear@0 923 return res;
nuclear@0 924 }
nuclear@0 925
nuclear@0 926 anm_time_t anm_get_end_time(struct anm_node *node)
nuclear@0 927 {
nuclear@21 928 int i, j;
nuclear@0 929 struct anm_node *c;
nuclear@0 930 anm_time_t res = LONG_MIN;
nuclear@0 931
nuclear@21 932 for(j=0; j<2; j++) {
nuclear@21 933 struct anm_animation *anim = anm_get_active_animation(node, j);
nuclear@21 934 if(!anim) break;
nuclear@21 935
nuclear@21 936 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 937 if(anim->tracks[i].count) {
nuclear@21 938 anm_time_t tm = anim->tracks[i].keys[anim->tracks[i].count - 1].time;
nuclear@21 939 if(tm > res) {
nuclear@21 940 res = tm;
nuclear@21 941 }
nuclear@0 942 }
nuclear@0 943 }
nuclear@0 944 }
nuclear@0 945
nuclear@0 946 c = node->child;
nuclear@0 947 while(c) {
nuclear@0 948 anm_time_t tm = anm_get_end_time(c);
nuclear@0 949 if(tm > res) {
nuclear@0 950 res = tm;
nuclear@0 951 }
nuclear@0 952 c = c->next;
nuclear@0 953 }
nuclear@0 954 return res;
nuclear@0 955 }
nuclear@0 956
nuclear@0 957 static void invalidate_cache(struct anm_node *node)
nuclear@0 958 {
nuclear@0 959 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@0 960 if(cache) {
nuclear@13 961 cache->time = cache->inv_time = ANM_TIME_INVAL;
nuclear@0 962 }
nuclear@0 963 }