goat3d

annotate libs/anim/anim.c @ 55:af1310ed212b

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author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 19 Jan 2014 14:56:44 +0200
parents 4deb0b12fe14
children ca549434dc95
rev   line source
nuclear@27 1 #include <stdlib.h>
nuclear@27 2 #include <limits.h>
nuclear@27 3 #include <assert.h>
nuclear@27 4 #include "anim.h"
nuclear@27 5 #include "dynarr.h"
nuclear@27 6
nuclear@27 7 #define ROT_USE_SLERP
nuclear@27 8
nuclear@27 9 static void invalidate_cache(struct anm_node *node);
nuclear@27 10
nuclear@49 11 int anm_init_animation(struct anm_animation *anim)
nuclear@27 12 {
nuclear@27 13 int i, j;
nuclear@27 14 static const float defaults[] = {
nuclear@27 15 0.0f, 0.0f, 0.0f, /* default position */
nuclear@27 16 0.0f, 0.0f, 0.0f, 1.0f, /* default rotation quat */
nuclear@27 17 1.0f, 1.0f, 1.0f /* default scale factor */
nuclear@27 18 };
nuclear@27 19
nuclear@49 20 anim->name = 0;
nuclear@49 21
nuclear@49 22 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@49 23 if(anm_init_track(anim->tracks + i) == -1) {
nuclear@49 24 for(j=0; j<i; j++) {
nuclear@49 25 anm_destroy_track(anim->tracks + i);
nuclear@49 26 }
nuclear@49 27 }
nuclear@49 28 anm_set_track_default(anim->tracks + i, defaults[i]);
nuclear@49 29 }
nuclear@49 30 return 0;
nuclear@49 31 }
nuclear@49 32
nuclear@49 33 void anm_destroy_animation(struct anm_animation *anim)
nuclear@49 34 {
nuclear@49 35 int i;
nuclear@49 36 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@49 37 anm_destroy_track(anim->tracks + i);
nuclear@49 38 }
nuclear@49 39 free(anim->name);
nuclear@49 40 }
nuclear@49 41
nuclear@49 42 void anm_set_animation_name(struct anm_animation *anim, const char *name)
nuclear@49 43 {
nuclear@49 44 char *newname = malloc(strlen(name) + 1);
nuclear@49 45 if(!newname) return;
nuclear@49 46
nuclear@49 47 strcpy(newname, name);
nuclear@49 48
nuclear@49 49 free(anim->name);
nuclear@49 50 anim->name = newname;
nuclear@49 51 }
nuclear@49 52
nuclear@49 53 /* ---- node implementation ----- */
nuclear@49 54
nuclear@49 55 int anm_init_node(struct anm_node *node)
nuclear@49 56 {
nuclear@27 57 memset(node, 0, sizeof *node);
nuclear@27 58
nuclear@49 59 node->cur_anim[1] = -1;
nuclear@49 60
nuclear@49 61 if(!(node->animations = dynarr_alloc(1, sizeof *node->animations))) {
nuclear@49 62 return -1;
nuclear@49 63 }
nuclear@49 64 if(anm_init_animation(node->animations) == -1) {
nuclear@49 65 dynarr_free(node->animations);
nuclear@49 66 return -1;
nuclear@27 67 }
nuclear@27 68
nuclear@49 69 /* initialize thread-local matrix cache */
nuclear@49 70 pthread_key_create(&node->cache_key, 0);
nuclear@49 71 pthread_mutex_init(&node->cache_list_lock, 0);
nuclear@49 72
nuclear@27 73 return 0;
nuclear@27 74 }
nuclear@27 75
nuclear@27 76 void anm_destroy_node(struct anm_node *node)
nuclear@27 77 {
nuclear@27 78 int i;
nuclear@27 79 free(node->name);
nuclear@27 80
nuclear@27 81 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@49 82 anm_destroy_animation(node->animations + i);
nuclear@49 83 }
nuclear@49 84 dynarr_free(node->animations);
nuclear@49 85
nuclear@49 86 /* destroy thread-specific cache */
nuclear@49 87 pthread_key_delete(node->cache_key);
nuclear@49 88
nuclear@49 89 while(node->cache_list) {
nuclear@49 90 struct mat_cache *tmp = node->cache_list;
nuclear@49 91 node->cache_list = tmp->next;
nuclear@49 92 free(tmp);
nuclear@27 93 }
nuclear@27 94 }
nuclear@27 95
nuclear@27 96 void anm_destroy_node_tree(struct anm_node *tree)
nuclear@27 97 {
nuclear@27 98 struct anm_node *c, *tmp;
nuclear@27 99
nuclear@27 100 if(!tree) return;
nuclear@27 101
nuclear@27 102 c = tree->child;
nuclear@27 103 while(c) {
nuclear@27 104 tmp = c;
nuclear@27 105 c = c->next;
nuclear@27 106
nuclear@27 107 anm_destroy_node_tree(tmp);
nuclear@27 108 }
nuclear@27 109 anm_destroy_node(tree);
nuclear@27 110 }
nuclear@27 111
nuclear@27 112 struct anm_node *anm_create_node(void)
nuclear@27 113 {
nuclear@27 114 struct anm_node *n;
nuclear@27 115
nuclear@27 116 if((n = malloc(sizeof *n))) {
nuclear@27 117 if(anm_init_node(n) == -1) {
nuclear@27 118 free(n);
nuclear@27 119 return 0;
nuclear@27 120 }
nuclear@27 121 }
nuclear@27 122 return n;
nuclear@27 123 }
nuclear@27 124
nuclear@27 125 void anm_free_node(struct anm_node *node)
nuclear@27 126 {
nuclear@27 127 anm_destroy_node(node);
nuclear@27 128 free(node);
nuclear@27 129 }
nuclear@27 130
nuclear@27 131 void anm_free_node_tree(struct anm_node *tree)
nuclear@27 132 {
nuclear@27 133 struct anm_node *c, *tmp;
nuclear@27 134
nuclear@27 135 if(!tree) return;
nuclear@27 136
nuclear@27 137 c = tree->child;
nuclear@27 138 while(c) {
nuclear@27 139 tmp = c;
nuclear@27 140 c = c->next;
nuclear@27 141
nuclear@27 142 anm_free_node_tree(tmp);
nuclear@27 143 }
nuclear@27 144
nuclear@27 145 anm_free_node(tree);
nuclear@27 146 }
nuclear@27 147
nuclear@27 148 int anm_set_node_name(struct anm_node *node, const char *name)
nuclear@27 149 {
nuclear@27 150 char *str;
nuclear@27 151
nuclear@27 152 if(!(str = malloc(strlen(name) + 1))) {
nuclear@27 153 return -1;
nuclear@27 154 }
nuclear@27 155 strcpy(str, name);
nuclear@27 156 free(node->name);
nuclear@27 157 node->name = str;
nuclear@27 158 return 0;
nuclear@27 159 }
nuclear@27 160
nuclear@27 161 const char *anm_get_node_name(struct anm_node *node)
nuclear@27 162 {
nuclear@27 163 return node->name ? node->name : "";
nuclear@27 164 }
nuclear@27 165
nuclear@27 166 void anm_link_node(struct anm_node *p, struct anm_node *c)
nuclear@27 167 {
nuclear@27 168 c->next = p->child;
nuclear@27 169 p->child = c;
nuclear@27 170
nuclear@27 171 c->parent = p;
nuclear@27 172 invalidate_cache(c);
nuclear@27 173 }
nuclear@27 174
nuclear@27 175 int anm_unlink_node(struct anm_node *p, struct anm_node *c)
nuclear@27 176 {
nuclear@27 177 struct anm_node *iter;
nuclear@27 178
nuclear@27 179 if(p->child == c) {
nuclear@27 180 p->child = c->next;
nuclear@27 181 c->next = 0;
nuclear@27 182 invalidate_cache(c);
nuclear@27 183 return 0;
nuclear@27 184 }
nuclear@27 185
nuclear@27 186 iter = p->child;
nuclear@27 187 while(iter->next) {
nuclear@27 188 if(iter->next == c) {
nuclear@27 189 iter->next = c->next;
nuclear@27 190 c->next = 0;
nuclear@27 191 invalidate_cache(c);
nuclear@27 192 return 0;
nuclear@27 193 }
nuclear@27 194 }
nuclear@27 195 return -1;
nuclear@27 196 }
nuclear@27 197
nuclear@49 198 void anm_set_pivot(struct anm_node *node, vec3_t piv)
nuclear@49 199 {
nuclear@49 200 node->pivot = piv;
nuclear@49 201 }
nuclear@49 202
nuclear@49 203 vec3_t anm_get_pivot(struct anm_node *node)
nuclear@49 204 {
nuclear@49 205 return node->pivot;
nuclear@49 206 }
nuclear@49 207
nuclear@49 208
nuclear@49 209 /* animation management */
nuclear@49 210
nuclear@49 211 int anm_use_node_animation(struct anm_node *node, int aidx)
nuclear@49 212 {
nuclear@49 213 if(aidx == node->cur_anim[0] && node->cur_anim[1] == -1) {
nuclear@49 214 return 0; /* no change, no invalidation */
nuclear@49 215 }
nuclear@49 216
nuclear@49 217 if(aidx < 0 || aidx >= anm_get_animation_count(node)) {
nuclear@49 218 return -1;
nuclear@49 219 }
nuclear@49 220
nuclear@49 221 node->cur_anim[0] = aidx;
nuclear@49 222 node->cur_anim[1] = -1;
nuclear@49 223 node->cur_mix = 0;
nuclear@49 224 node->blend_dur = -1;
nuclear@49 225
nuclear@49 226 invalidate_cache(node);
nuclear@49 227 return 0;
nuclear@49 228 }
nuclear@49 229
nuclear@49 230 int anm_use_node_animations(struct anm_node *node, int aidx, int bidx, float t)
nuclear@49 231 {
nuclear@49 232 int num_anim;
nuclear@49 233
nuclear@49 234 if(node->cur_anim[0] == aidx && node->cur_anim[1] == bidx &&
nuclear@49 235 fabs(t - node->cur_mix) < 1e-6) {
nuclear@49 236 return 0; /* no change, no invalidation */
nuclear@49 237 }
nuclear@49 238
nuclear@49 239 num_anim = anm_get_animation_count(node);
nuclear@49 240 if(aidx < 0 || aidx >= num_anim) {
nuclear@49 241 return anm_use_animation(node, bidx);
nuclear@49 242 }
nuclear@49 243 if(bidx < 0 || bidx >= num_anim) {
nuclear@49 244 return anm_use_animation(node, aidx);
nuclear@49 245 }
nuclear@49 246 node->cur_anim[0] = aidx;
nuclear@49 247 node->cur_anim[1] = bidx;
nuclear@49 248 node->cur_mix = t;
nuclear@49 249
nuclear@49 250 invalidate_cache(node);
nuclear@49 251 return 0;
nuclear@49 252 }
nuclear@49 253
nuclear@49 254 int anm_use_animation(struct anm_node *node, int aidx)
nuclear@49 255 {
nuclear@49 256 struct anm_node *child;
nuclear@49 257
nuclear@49 258 if(anm_use_node_animation(node, aidx) == -1) {
nuclear@49 259 return -1;
nuclear@49 260 }
nuclear@49 261
nuclear@49 262 child = node->child;
nuclear@49 263 while(child) {
nuclear@49 264 if(anm_use_animation(child, aidx) == -1) {
nuclear@49 265 return -1;
nuclear@49 266 }
nuclear@49 267 child = child->next;
nuclear@49 268 }
nuclear@49 269 return 0;
nuclear@49 270 }
nuclear@49 271
nuclear@49 272 int anm_use_animations(struct anm_node *node, int aidx, int bidx, float t)
nuclear@49 273 {
nuclear@49 274 struct anm_node *child;
nuclear@49 275
nuclear@49 276 if(anm_use_node_animations(node, aidx, bidx, t) == -1) {
nuclear@49 277 return -1;
nuclear@49 278 }
nuclear@49 279
nuclear@49 280 child = node->child;
nuclear@49 281 while(child) {
nuclear@49 282 if(anm_use_animations(child, aidx, bidx, t) == -1) {
nuclear@49 283 return -1;
nuclear@49 284 }
nuclear@49 285 child = child->next;
nuclear@49 286 }
nuclear@49 287 return 0;
nuclear@49 288
nuclear@49 289 }
nuclear@49 290
nuclear@49 291 void anm_set_node_animation_offset(struct anm_node *node, anm_time_t offs, int which)
nuclear@49 292 {
nuclear@49 293 if(which < 0 || which >= 2) {
nuclear@49 294 return;
nuclear@49 295 }
nuclear@49 296 node->cur_anim_offset[which] = offs;
nuclear@49 297 }
nuclear@49 298
nuclear@49 299 anm_time_t anm_get_animation_offset(const struct anm_node *node, int which)
nuclear@49 300 {
nuclear@49 301 if(which < 0 || which >= 2) {
nuclear@49 302 return 0;
nuclear@49 303 }
nuclear@49 304 return node->cur_anim_offset[which];
nuclear@49 305 }
nuclear@49 306
nuclear@49 307 void anm_set_animation_offset(struct anm_node *node, anm_time_t offs, int which)
nuclear@49 308 {
nuclear@49 309 struct anm_node *c = node->child;
nuclear@49 310 while(c) {
nuclear@49 311 anm_set_animation_offset(c, offs, which);
nuclear@49 312 c = c->next;
nuclear@49 313 }
nuclear@49 314
nuclear@49 315 anm_set_node_animation_offset(node, offs, which);
nuclear@49 316 }
nuclear@49 317
nuclear@49 318 int anm_get_active_animation_index(const struct anm_node *node, int which)
nuclear@49 319 {
nuclear@49 320 if(which < 0 || which >= 2) return -1;
nuclear@49 321 return node->cur_anim[which];
nuclear@49 322 }
nuclear@49 323
nuclear@49 324 struct anm_animation *anm_get_active_animation(const struct anm_node *node, int which)
nuclear@49 325 {
nuclear@49 326 int idx = anm_get_active_animation_index(node, which);
nuclear@49 327 if(idx < 0 || idx >= anm_get_animation_count(node)) {
nuclear@49 328 return 0;
nuclear@49 329 }
nuclear@49 330 return node->animations + idx;
nuclear@49 331 }
nuclear@49 332
nuclear@49 333 float anm_get_active_animation_mix(const struct anm_node *node)
nuclear@49 334 {
nuclear@49 335 return node->cur_mix;
nuclear@49 336 }
nuclear@49 337
nuclear@49 338 int anm_get_animation_count(const struct anm_node *node)
nuclear@49 339 {
nuclear@49 340 return dynarr_size(node->animations);
nuclear@49 341 }
nuclear@49 342
nuclear@49 343 int anm_add_node_animation(struct anm_node *node)
nuclear@49 344 {
nuclear@49 345 struct anm_animation newanim;
nuclear@49 346 anm_init_animation(&newanim);
nuclear@49 347
nuclear@49 348 node->animations = dynarr_push(node->animations, &newanim);
nuclear@49 349 return 0;
nuclear@49 350 }
nuclear@49 351
nuclear@49 352 int anm_remove_node_animation(struct anm_node *node, int idx)
nuclear@49 353 {
nuclear@49 354 fprintf(stderr, "anm_remove_animation: unimplemented!");
nuclear@49 355 abort();
nuclear@49 356 return 0;
nuclear@49 357 }
nuclear@49 358
nuclear@49 359 int anm_add_animation(struct anm_node *node)
nuclear@49 360 {
nuclear@49 361 struct anm_node *child;
nuclear@49 362
nuclear@49 363 if(anm_add_node_animation(node) == -1) {
nuclear@49 364 return -1;
nuclear@49 365 }
nuclear@49 366
nuclear@49 367 child = node->child;
nuclear@49 368 while(child) {
nuclear@49 369 if(anm_add_animation(child)) {
nuclear@49 370 return -1;
nuclear@49 371 }
nuclear@49 372 child = child->next;
nuclear@49 373 }
nuclear@49 374 return 0;
nuclear@49 375 }
nuclear@49 376
nuclear@49 377 int anm_remove_animation(struct anm_node *node, int idx)
nuclear@49 378 {
nuclear@49 379 struct anm_node *child;
nuclear@49 380
nuclear@49 381 if(anm_remove_node_animation(node, idx) == -1) {
nuclear@49 382 return -1;
nuclear@49 383 }
nuclear@49 384
nuclear@49 385 child = node->child;
nuclear@49 386 while(child) {
nuclear@49 387 if(anm_remove_animation(child, idx) == -1) {
nuclear@49 388 return -1;
nuclear@49 389 }
nuclear@49 390 child = child->next;
nuclear@49 391 }
nuclear@49 392 return 0;
nuclear@49 393 }
nuclear@49 394
nuclear@49 395 struct anm_animation *anm_get_animation(struct anm_node *node, int idx)
nuclear@49 396 {
nuclear@49 397 if(idx < 0 || idx > anm_get_animation_count(node)) {
nuclear@49 398 return 0;
nuclear@49 399 }
nuclear@49 400 return node->animations + idx;
nuclear@49 401 }
nuclear@49 402
nuclear@49 403 struct anm_animation *anm_get_animation_by_name(struct anm_node *node, const char *name)
nuclear@49 404 {
nuclear@49 405 return anm_get_animation(node, anm_find_animation(node, name));
nuclear@49 406 }
nuclear@49 407
nuclear@49 408 int anm_find_animation(struct anm_node *node, const char *name)
nuclear@49 409 {
nuclear@49 410 int i, count = anm_get_animation_count(node);
nuclear@49 411 for(i=0; i<count; i++) {
nuclear@49 412 if(strcmp(node->animations[i].name, name) == 0) {
nuclear@49 413 return i;
nuclear@49 414 }
nuclear@49 415 }
nuclear@49 416 return -1;
nuclear@49 417 }
nuclear@49 418
nuclear@49 419 /* all the rest act on the current animation(s) */
nuclear@49 420
nuclear@49 421 void anm_set_interpolator(struct anm_node *node, enum anm_interpolator in)
nuclear@49 422 {
nuclear@49 423 int i;
nuclear@49 424 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@49 425 if(!anim) return;
nuclear@49 426
nuclear@49 427 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@49 428 anm_set_track_interpolator(anim->tracks + i, in);
nuclear@49 429 }
nuclear@49 430 invalidate_cache(node);
nuclear@49 431 }
nuclear@49 432
nuclear@49 433 void anm_set_extrapolator(struct anm_node *node, enum anm_extrapolator ex)
nuclear@49 434 {
nuclear@49 435 int i;
nuclear@49 436 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@49 437 if(!anim) return;
nuclear@49 438
nuclear@49 439 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@49 440 anm_set_track_extrapolator(anim->tracks + i, ex);
nuclear@49 441 }
nuclear@49 442 invalidate_cache(node);
nuclear@49 443 }
nuclear@49 444
nuclear@49 445 void anm_set_node_active_animation_name(struct anm_node *node, const char *name)
nuclear@49 446 {
nuclear@49 447 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@49 448 if(!anim) return;
nuclear@49 449
nuclear@49 450 anm_set_animation_name(anim, name);
nuclear@49 451 }
nuclear@49 452
nuclear@49 453 void anm_set_active_animation_name(struct anm_node *node, const char *name)
nuclear@49 454 {
nuclear@49 455 struct anm_node *child;
nuclear@49 456
nuclear@49 457 anm_set_node_active_animation_name(node, name);
nuclear@49 458
nuclear@49 459 child = node->child;
nuclear@49 460 while(child) {
nuclear@49 461 anm_set_active_animation_name(child, name);
nuclear@49 462 child = child->next;
nuclear@49 463 }
nuclear@49 464 }
nuclear@49 465
nuclear@49 466 const char *anm_get_active_animation_name(struct anm_node *node)
nuclear@49 467 {
nuclear@49 468 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@49 469 if(anim) {
nuclear@49 470 return anim->name;
nuclear@49 471 }
nuclear@49 472 return 0;
nuclear@49 473 }
nuclear@49 474
nuclear@49 475 /* ---- high level animation blending ---- */
nuclear@49 476 void anm_transition(struct anm_node *node, int anmidx, anm_time_t start, anm_time_t dur)
nuclear@49 477 {
nuclear@49 478 struct anm_node *c = node->child;
nuclear@49 479
nuclear@49 480 if(anmidx == node->cur_anim[0]) {
nuclear@49 481 return;
nuclear@49 482 }
nuclear@49 483
nuclear@49 484 while(c) {
nuclear@49 485 anm_transition(c, anmidx, start, dur);
nuclear@49 486 c = c->next;
nuclear@49 487 }
nuclear@49 488
nuclear@49 489 anm_node_transition(node, anmidx, start, dur);
nuclear@49 490 }
nuclear@49 491
nuclear@49 492 void anm_node_transition(struct anm_node *node, int anmidx, anm_time_t start, anm_time_t dur)
nuclear@49 493 {
nuclear@49 494 if(anmidx == node->cur_anim[0]) {
nuclear@49 495 return;
nuclear@49 496 }
nuclear@49 497
nuclear@49 498 node->cur_anim[1] = anmidx;
nuclear@49 499 node->cur_anim_offset[1] = start;
nuclear@49 500 node->blend_dur = dur;
nuclear@49 501 }
nuclear@49 502
nuclear@49 503
nuclear@49 504 #define BLEND_START_TM node->cur_anim_offset[1]
nuclear@49 505
nuclear@49 506 static anm_time_t animation_time(struct anm_node *node, anm_time_t tm, int which)
nuclear@49 507 {
nuclear@49 508 float t;
nuclear@49 509
nuclear@49 510 if(node->blend_dur >= 0) {
nuclear@49 511 /* we're in transition... */
nuclear@49 512 t = (float)(tm - BLEND_START_TM) / (float)node->blend_dur;
nuclear@49 513 if(t < 0.0) t = 0.0;
nuclear@49 514
nuclear@49 515 node->cur_mix = t;
nuclear@49 516
nuclear@49 517 if(t > 1.0) {
nuclear@49 518 /* switch completely over to the target animation and stop blending */
nuclear@49 519 anm_use_node_animation(node, node->cur_anim[1]);
nuclear@49 520 node->cur_anim_offset[0] = node->cur_anim_offset[1];
nuclear@49 521 }
nuclear@49 522 }
nuclear@49 523
nuclear@49 524 return tm - node->cur_anim_offset[which];
nuclear@49 525 }
nuclear@49 526
nuclear@49 527
nuclear@27 528 void anm_set_position(struct anm_node *node, vec3_t pos, anm_time_t tm)
nuclear@27 529 {
nuclear@49 530 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@49 531 if(!anim) return;
nuclear@49 532
nuclear@49 533 anm_set_value(anim->tracks + ANM_TRACK_POS_X, tm, pos.x);
nuclear@49 534 anm_set_value(anim->tracks + ANM_TRACK_POS_Y, tm, pos.y);
nuclear@49 535 anm_set_value(anim->tracks + ANM_TRACK_POS_Z, tm, pos.z);
nuclear@27 536 invalidate_cache(node);
nuclear@27 537 }
nuclear@27 538
nuclear@49 539
nuclear@27 540 vec3_t anm_get_node_position(struct anm_node *node, anm_time_t tm)
nuclear@27 541 {
nuclear@27 542 vec3_t v;
nuclear@49 543 anm_time_t tm0 = animation_time(node, tm, 0);
nuclear@49 544 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@49 545 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@49 546
nuclear@49 547 if(!anim0) {
nuclear@49 548 return v3_cons(0, 0, 0);
nuclear@49 549 }
nuclear@49 550
nuclear@49 551 v.x = anm_get_value(anim0->tracks + ANM_TRACK_POS_X, tm0);
nuclear@49 552 v.y = anm_get_value(anim0->tracks + ANM_TRACK_POS_Y, tm0);
nuclear@49 553 v.z = anm_get_value(anim0->tracks + ANM_TRACK_POS_Z, tm0);
nuclear@49 554
nuclear@49 555 if(anim1) {
nuclear@49 556 vec3_t v1;
nuclear@49 557 anm_time_t tm1 = animation_time(node, tm, 1);
nuclear@49 558 v1.x = anm_get_value(anim1->tracks + ANM_TRACK_POS_X, tm1);
nuclear@49 559 v1.y = anm_get_value(anim1->tracks + ANM_TRACK_POS_Y, tm1);
nuclear@49 560 v1.z = anm_get_value(anim1->tracks + ANM_TRACK_POS_Z, tm1);
nuclear@49 561
nuclear@49 562 v.x = v.x + (v1.x - v.x) * node->cur_mix;
nuclear@49 563 v.y = v.y + (v1.y - v.y) * node->cur_mix;
nuclear@49 564 v.z = v.z + (v1.z - v.z) * node->cur_mix;
nuclear@49 565 }
nuclear@49 566
nuclear@27 567 return v;
nuclear@27 568 }
nuclear@27 569
nuclear@27 570 void anm_set_rotation(struct anm_node *node, quat_t rot, anm_time_t tm)
nuclear@27 571 {
nuclear@49 572 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@49 573 if(!anim) return;
nuclear@49 574
nuclear@49 575 anm_set_value(anim->tracks + ANM_TRACK_ROT_X, tm, rot.x);
nuclear@49 576 anm_set_value(anim->tracks + ANM_TRACK_ROT_Y, tm, rot.y);
nuclear@49 577 anm_set_value(anim->tracks + ANM_TRACK_ROT_Z, tm, rot.z);
nuclear@49 578 anm_set_value(anim->tracks + ANM_TRACK_ROT_W, tm, rot.w);
nuclear@27 579 invalidate_cache(node);
nuclear@27 580 }
nuclear@27 581
nuclear@49 582 static quat_t get_node_rotation(struct anm_node *node, anm_time_t tm, struct anm_animation *anim)
nuclear@27 583 {
nuclear@27 584 #ifndef ROT_USE_SLERP
nuclear@27 585 quat_t q;
nuclear@49 586 q.x = anm_get_value(anim->tracks + ANM_TRACK_ROT_X, tm);
nuclear@49 587 q.y = anm_get_value(anim->tracks + ANM_TRACK_ROT_Y, tm);
nuclear@49 588 q.z = anm_get_value(anim->tracks + ANM_TRACK_ROT_Z, tm);
nuclear@49 589 q.w = anm_get_value(anim->tracks + ANM_TRACK_ROT_W, tm);
nuclear@27 590 return q;
nuclear@27 591 #else
nuclear@27 592 int idx0, idx1, last_idx;
nuclear@27 593 anm_time_t tstart, tend;
nuclear@27 594 float t, dt;
nuclear@27 595 struct anm_track *track_x, *track_y, *track_z, *track_w;
nuclear@27 596 quat_t q, q1, q2;
nuclear@27 597
nuclear@49 598 track_x = anim->tracks + ANM_TRACK_ROT_X;
nuclear@49 599 track_y = anim->tracks + ANM_TRACK_ROT_Y;
nuclear@49 600 track_z = anim->tracks + ANM_TRACK_ROT_Z;
nuclear@49 601 track_w = anim->tracks + ANM_TRACK_ROT_W;
nuclear@27 602
nuclear@27 603 if(!track_x->count) {
nuclear@27 604 q.x = track_x->def_val;
nuclear@27 605 q.y = track_y->def_val;
nuclear@27 606 q.z = track_z->def_val;
nuclear@27 607 q.w = track_w->def_val;
nuclear@27 608 return q;
nuclear@27 609 }
nuclear@27 610
nuclear@27 611 last_idx = track_x->count - 1;
nuclear@27 612
nuclear@27 613 tstart = track_x->keys[0].time;
nuclear@27 614 tend = track_x->keys[last_idx].time;
nuclear@27 615
nuclear@27 616 if(tstart == tend) {
nuclear@27 617 q.x = track_x->keys[0].val;
nuclear@27 618 q.y = track_y->keys[0].val;
nuclear@27 619 q.z = track_z->keys[0].val;
nuclear@27 620 q.w = track_w->keys[0].val;
nuclear@27 621 return q;
nuclear@27 622 }
nuclear@27 623
nuclear@27 624 tm = anm_remap_time(track_x, tm, tstart, tend);
nuclear@27 625
nuclear@27 626 idx0 = anm_get_key_interval(track_x, tm);
nuclear@27 627 assert(idx0 >= 0 && idx0 < track_x->count);
nuclear@27 628 idx1 = idx0 + 1;
nuclear@27 629
nuclear@27 630 if(idx0 == last_idx) {
nuclear@27 631 q.x = track_x->keys[idx0].val;
nuclear@27 632 q.y = track_y->keys[idx0].val;
nuclear@27 633 q.z = track_z->keys[idx0].val;
nuclear@27 634 q.w = track_w->keys[idx0].val;
nuclear@27 635 return q;
nuclear@27 636 }
nuclear@27 637
nuclear@27 638 dt = (float)(track_x->keys[idx1].time - track_x->keys[idx0].time);
nuclear@27 639 t = (float)(tm - track_x->keys[idx0].time) / dt;
nuclear@27 640
nuclear@27 641 q1.x = track_x->keys[idx0].val;
nuclear@27 642 q1.y = track_y->keys[idx0].val;
nuclear@27 643 q1.z = track_z->keys[idx0].val;
nuclear@27 644 q1.w = track_w->keys[idx0].val;
nuclear@27 645
nuclear@27 646 q2.x = track_x->keys[idx1].val;
nuclear@27 647 q2.y = track_y->keys[idx1].val;
nuclear@27 648 q2.z = track_z->keys[idx1].val;
nuclear@27 649 q2.w = track_w->keys[idx1].val;
nuclear@27 650
nuclear@27 651 /*q1 = quat_normalize(q1);
nuclear@27 652 q2 = quat_normalize(q2);*/
nuclear@27 653
nuclear@27 654 return quat_slerp(q1, q2, t);
nuclear@27 655 #endif
nuclear@27 656 }
nuclear@27 657
nuclear@49 658 quat_t anm_get_node_rotation(struct anm_node *node, anm_time_t tm)
nuclear@49 659 {
nuclear@49 660 quat_t q;
nuclear@49 661 anm_time_t tm0 = animation_time(node, tm, 0);
nuclear@49 662 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@49 663 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@49 664
nuclear@49 665 if(!anim0) {
nuclear@49 666 return quat_identity();
nuclear@49 667 }
nuclear@49 668
nuclear@49 669 q = get_node_rotation(node, tm0, anim0);
nuclear@49 670
nuclear@49 671 if(anim1) {
nuclear@49 672 anm_time_t tm1 = animation_time(node, tm, 1);
nuclear@49 673 quat_t q1 = get_node_rotation(node, tm1, anim1);
nuclear@49 674
nuclear@49 675 q = quat_slerp(q, q1, node->cur_mix);
nuclear@49 676 }
nuclear@49 677 return q;
nuclear@49 678 }
nuclear@49 679
nuclear@27 680 void anm_set_scaling(struct anm_node *node, vec3_t scl, anm_time_t tm)
nuclear@27 681 {
nuclear@49 682 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@49 683 if(!anim) return;
nuclear@49 684
nuclear@49 685 anm_set_value(anim->tracks + ANM_TRACK_SCL_X, tm, scl.x);
nuclear@49 686 anm_set_value(anim->tracks + ANM_TRACK_SCL_Y, tm, scl.y);
nuclear@49 687 anm_set_value(anim->tracks + ANM_TRACK_SCL_Z, tm, scl.z);
nuclear@27 688 invalidate_cache(node);
nuclear@27 689 }
nuclear@27 690
nuclear@27 691 vec3_t anm_get_node_scaling(struct anm_node *node, anm_time_t tm)
nuclear@27 692 {
nuclear@27 693 vec3_t v;
nuclear@49 694 anm_time_t tm0 = animation_time(node, tm, 0);
nuclear@49 695 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@49 696 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@49 697
nuclear@49 698 if(!anim0) {
nuclear@49 699 return v3_cons(1, 1, 1);
nuclear@49 700 }
nuclear@49 701
nuclear@49 702 v.x = anm_get_value(anim0->tracks + ANM_TRACK_SCL_X, tm0);
nuclear@49 703 v.y = anm_get_value(anim0->tracks + ANM_TRACK_SCL_Y, tm0);
nuclear@49 704 v.z = anm_get_value(anim0->tracks + ANM_TRACK_SCL_Z, tm0);
nuclear@49 705
nuclear@49 706 if(anim1) {
nuclear@49 707 vec3_t v1;
nuclear@49 708 anm_time_t tm1 = animation_time(node, tm, 1);
nuclear@49 709 v1.x = anm_get_value(anim1->tracks + ANM_TRACK_SCL_X, tm1);
nuclear@49 710 v1.y = anm_get_value(anim1->tracks + ANM_TRACK_SCL_Y, tm1);
nuclear@49 711 v1.z = anm_get_value(anim1->tracks + ANM_TRACK_SCL_Z, tm1);
nuclear@49 712
nuclear@49 713 v.x = v.x + (v1.x - v.x) * node->cur_mix;
nuclear@49 714 v.y = v.y + (v1.y - v.y) * node->cur_mix;
nuclear@49 715 v.z = v.z + (v1.z - v.z) * node->cur_mix;
nuclear@49 716 }
nuclear@49 717
nuclear@27 718 return v;
nuclear@27 719 }
nuclear@27 720
nuclear@27 721
nuclear@27 722 vec3_t anm_get_position(struct anm_node *node, anm_time_t tm)
nuclear@27 723 {
nuclear@27 724 mat4_t xform;
nuclear@27 725 vec3_t pos = {0.0, 0.0, 0.0};
nuclear@27 726
nuclear@27 727 if(!node->parent) {
nuclear@27 728 return anm_get_node_position(node, tm);
nuclear@27 729 }
nuclear@27 730
nuclear@27 731 anm_get_matrix(node, xform, tm);
nuclear@27 732 return v3_transform(pos, xform);
nuclear@27 733 }
nuclear@27 734
nuclear@27 735 quat_t anm_get_rotation(struct anm_node *node, anm_time_t tm)
nuclear@27 736 {
nuclear@27 737 quat_t rot, prot;
nuclear@27 738 rot = anm_get_node_rotation(node, tm);
nuclear@27 739
nuclear@27 740 if(!node->parent) {
nuclear@27 741 return rot;
nuclear@27 742 }
nuclear@27 743
nuclear@27 744 prot = anm_get_rotation(node->parent, tm);
nuclear@27 745 return quat_mul(prot, rot);
nuclear@27 746 }
nuclear@27 747
nuclear@27 748 vec3_t anm_get_scaling(struct anm_node *node, anm_time_t tm)
nuclear@27 749 {
nuclear@27 750 vec3_t s, ps;
nuclear@27 751 s = anm_get_node_scaling(node, tm);
nuclear@27 752
nuclear@27 753 if(!node->parent) {
nuclear@27 754 return s;
nuclear@27 755 }
nuclear@27 756
nuclear@27 757 ps = anm_get_scaling(node->parent, tm);
nuclear@27 758 return v3_mul(s, ps);
nuclear@27 759 }
nuclear@27 760
nuclear@27 761 void anm_get_node_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@27 762 {
nuclear@27 763 int i;
nuclear@27 764 mat4_t rmat;
nuclear@27 765 vec3_t pos, scale;
nuclear@27 766 quat_t rot;
nuclear@27 767
nuclear@27 768 pos = anm_get_node_position(node, tm);
nuclear@27 769 rot = anm_get_node_rotation(node, tm);
nuclear@27 770 scale = anm_get_node_scaling(node, tm);
nuclear@27 771
nuclear@27 772 m4_set_translation(mat, node->pivot.x, node->pivot.y, node->pivot.z);
nuclear@27 773
nuclear@27 774 quat_to_mat4(rmat, rot);
nuclear@27 775 for(i=0; i<3; i++) {
nuclear@27 776 mat[i][0] = rmat[i][0];
nuclear@27 777 mat[i][1] = rmat[i][1];
nuclear@27 778 mat[i][2] = rmat[i][2];
nuclear@27 779 }
nuclear@27 780 /* this loop is equivalent to: m4_mult(mat, mat, rmat); */
nuclear@27 781
nuclear@27 782 mat[0][0] *= scale.x; mat[0][1] *= scale.y; mat[0][2] *= scale.z; mat[0][3] += pos.x;
nuclear@27 783 mat[1][0] *= scale.x; mat[1][1] *= scale.y; mat[1][2] *= scale.z; mat[1][3] += pos.y;
nuclear@27 784 mat[2][0] *= scale.x; mat[2][1] *= scale.y; mat[2][2] *= scale.z; mat[2][3] += pos.z;
nuclear@27 785
nuclear@27 786 m4_translate(mat, -node->pivot.x, -node->pivot.y, -node->pivot.z);
nuclear@27 787
nuclear@27 788 /* that's basically: pivot * rotation * translation * scaling * -pivot */
nuclear@27 789 }
nuclear@27 790
nuclear@27 791 void anm_get_node_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@27 792 {
nuclear@27 793 mat4_t tmp;
nuclear@27 794 anm_get_node_matrix(node, tmp, tm);
nuclear@27 795 m4_inverse(mat, tmp);
nuclear@27 796 }
nuclear@27 797
nuclear@49 798 void anm_eval_node(struct anm_node *node, anm_time_t tm)
nuclear@49 799 {
nuclear@49 800 anm_get_node_matrix(node, node->matrix, tm);
nuclear@49 801 }
nuclear@49 802
nuclear@49 803 void anm_eval(struct anm_node *node, anm_time_t tm)
nuclear@49 804 {
nuclear@49 805 struct anm_node *c;
nuclear@49 806
nuclear@49 807 anm_eval_node(node, tm);
nuclear@49 808
nuclear@49 809 if(node->parent) {
nuclear@49 810 /* due to post-order traversal, the parent matrix is already evaluated */
nuclear@49 811 m4_mult(node->matrix, node->parent->matrix, node->matrix);
nuclear@49 812 }
nuclear@49 813
nuclear@49 814 /* recersively evaluate all children */
nuclear@49 815 c = node->child;
nuclear@49 816 while(c) {
nuclear@49 817 anm_eval(c, tm);
nuclear@49 818 c = c->next;
nuclear@49 819 }
nuclear@49 820 }
nuclear@49 821
nuclear@27 822 void anm_get_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@27 823 {
nuclear@49 824 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@49 825 if(!cache) {
nuclear@49 826 cache = malloc(sizeof *cache);
nuclear@49 827 assert(cache);
nuclear@49 828
nuclear@49 829 pthread_mutex_lock(&node->cache_list_lock);
nuclear@49 830 cache->next = node->cache_list;
nuclear@49 831 node->cache_list = cache;
nuclear@49 832 pthread_mutex_unlock(&node->cache_list_lock);
nuclear@49 833
nuclear@49 834 cache->time = ANM_TIME_INVAL;
nuclear@49 835 cache->inv_time = ANM_TIME_INVAL;
nuclear@49 836 pthread_setspecific(node->cache_key, cache);
nuclear@49 837 }
nuclear@49 838
nuclear@49 839 if(cache->time != tm) {
nuclear@49 840 anm_get_node_matrix(node, cache->matrix, tm);
nuclear@27 841
nuclear@27 842 if(node->parent) {
nuclear@27 843 mat4_t parent_mat;
nuclear@27 844
nuclear@27 845 anm_get_matrix(node->parent, parent_mat, tm);
nuclear@49 846 m4_mult(cache->matrix, parent_mat, cache->matrix);
nuclear@27 847 }
nuclear@49 848 cache->time = tm;
nuclear@27 849 }
nuclear@49 850 m4_copy(mat, cache->matrix);
nuclear@27 851 }
nuclear@27 852
nuclear@27 853 void anm_get_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@27 854 {
nuclear@49 855 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@49 856 if(!cache) {
nuclear@49 857 cache = malloc(sizeof *cache);
nuclear@49 858 assert(cache);
nuclear@49 859
nuclear@49 860 pthread_mutex_lock(&node->cache_list_lock);
nuclear@49 861 cache->next = node->cache_list;
nuclear@49 862 node->cache_list = cache;
nuclear@49 863 pthread_mutex_unlock(&node->cache_list_lock);
nuclear@49 864
nuclear@49 865 cache->inv_time = ANM_TIME_INVAL;
nuclear@49 866 cache->inv_time = ANM_TIME_INVAL;
nuclear@49 867 pthread_setspecific(node->cache_key, cache);
nuclear@49 868 }
nuclear@49 869
nuclear@49 870 if(cache->inv_time != tm) {
nuclear@27 871 anm_get_matrix(node, mat, tm);
nuclear@49 872 m4_inverse(cache->inv_matrix, mat);
nuclear@49 873 cache->inv_time = tm;
nuclear@27 874 }
nuclear@49 875 m4_copy(mat, cache->inv_matrix);
nuclear@27 876 }
nuclear@27 877
nuclear@27 878 anm_time_t anm_get_start_time(struct anm_node *node)
nuclear@27 879 {
nuclear@49 880 int i, j;
nuclear@27 881 struct anm_node *c;
nuclear@27 882 anm_time_t res = LONG_MAX;
nuclear@27 883
nuclear@49 884 for(j=0; j<2; j++) {
nuclear@49 885 struct anm_animation *anim = anm_get_active_animation(node, j);
nuclear@49 886 if(!anim) break;
nuclear@49 887
nuclear@49 888 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@49 889 if(anim->tracks[i].count) {
nuclear@49 890 anm_time_t tm = anim->tracks[i].keys[0].time;
nuclear@49 891 if(tm < res) {
nuclear@49 892 res = tm;
nuclear@49 893 }
nuclear@27 894 }
nuclear@27 895 }
nuclear@27 896 }
nuclear@27 897
nuclear@27 898 c = node->child;
nuclear@27 899 while(c) {
nuclear@27 900 anm_time_t tm = anm_get_start_time(c);
nuclear@27 901 if(tm < res) {
nuclear@27 902 res = tm;
nuclear@27 903 }
nuclear@27 904 c = c->next;
nuclear@27 905 }
nuclear@27 906 return res;
nuclear@27 907 }
nuclear@27 908
nuclear@27 909 anm_time_t anm_get_end_time(struct anm_node *node)
nuclear@27 910 {
nuclear@49 911 int i, j;
nuclear@27 912 struct anm_node *c;
nuclear@27 913 anm_time_t res = LONG_MIN;
nuclear@27 914
nuclear@49 915 for(j=0; j<2; j++) {
nuclear@49 916 struct anm_animation *anim = anm_get_active_animation(node, j);
nuclear@49 917 if(!anim) break;
nuclear@49 918
nuclear@49 919 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@49 920 if(anim->tracks[i].count) {
nuclear@49 921 anm_time_t tm = anim->tracks[i].keys[anim->tracks[i].count - 1].time;
nuclear@49 922 if(tm > res) {
nuclear@49 923 res = tm;
nuclear@49 924 }
nuclear@27 925 }
nuclear@27 926 }
nuclear@27 927 }
nuclear@27 928
nuclear@27 929 c = node->child;
nuclear@27 930 while(c) {
nuclear@27 931 anm_time_t tm = anm_get_end_time(c);
nuclear@27 932 if(tm > res) {
nuclear@27 933 res = tm;
nuclear@27 934 }
nuclear@27 935 c = c->next;
nuclear@27 936 }
nuclear@27 937 return res;
nuclear@27 938 }
nuclear@27 939
nuclear@27 940 static void invalidate_cache(struct anm_node *node)
nuclear@27 941 {
nuclear@49 942 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@49 943 if(cache) {
nuclear@49 944 cache->time = cache->inv_time = ANM_TIME_INVAL;
nuclear@49 945 }
nuclear@27 946 }