libanim

annotate src/anim.c @ 26:b52f3e23e06f

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fixed a crashing bug in anm_destroy_node introduced when I added the multiple animations per node
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 23 Jan 2014 02:53:09 +0200
parents ebead35c9eb1
children 70ad14ba4df2
rev   line source
nuclear@1 1 #include <stdlib.h>
nuclear@0 2 #include <limits.h>
nuclear@0 3 #include <assert.h>
nuclear@0 4 #include "anim.h"
nuclear@0 5 #include "dynarr.h"
nuclear@0 6
nuclear@7 7 #define ROT_USE_SLERP
nuclear@7 8
nuclear@0 9 static void invalidate_cache(struct anm_node *node);
nuclear@0 10
nuclear@21 11 int anm_init_animation(struct anm_animation *anim)
nuclear@0 12 {
nuclear@0 13 int i, j;
nuclear@0 14 static const float defaults[] = {
nuclear@0 15 0.0f, 0.0f, 0.0f, /* default position */
nuclear@0 16 0.0f, 0.0f, 0.0f, 1.0f, /* default rotation quat */
nuclear@0 17 1.0f, 1.0f, 1.0f /* default scale factor */
nuclear@0 18 };
nuclear@0 19
nuclear@21 20 anim->name = 0;
nuclear@21 21
nuclear@21 22 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 23 if(anm_init_track(anim->tracks + i) == -1) {
nuclear@21 24 for(j=0; j<i; j++) {
nuclear@21 25 anm_destroy_track(anim->tracks + i);
nuclear@21 26 }
nuclear@21 27 }
nuclear@21 28 anm_set_track_default(anim->tracks + i, defaults[i]);
nuclear@21 29 }
nuclear@21 30 return 0;
nuclear@21 31 }
nuclear@21 32
nuclear@21 33 void anm_destroy_animation(struct anm_animation *anim)
nuclear@21 34 {
nuclear@21 35 int i;
nuclear@21 36 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 37 anm_destroy_track(anim->tracks + i);
nuclear@21 38 }
nuclear@21 39 free(anim->name);
nuclear@21 40 }
nuclear@21 41
nuclear@22 42 void anm_set_animation_name(struct anm_animation *anim, const char *name)
nuclear@22 43 {
nuclear@22 44 char *newname = malloc(strlen(name) + 1);
nuclear@22 45 if(!newname) return;
nuclear@22 46
nuclear@23 47 strcpy(newname, name);
nuclear@23 48
nuclear@22 49 free(anim->name);
nuclear@22 50 anim->name = newname;
nuclear@22 51 }
nuclear@22 52
nuclear@21 53 /* ---- node implementation ----- */
nuclear@21 54
nuclear@21 55 int anm_init_node(struct anm_node *node)
nuclear@21 56 {
nuclear@0 57 memset(node, 0, sizeof *node);
nuclear@0 58
nuclear@21 59 node->cur_anim[1] = -1;
nuclear@21 60
nuclear@21 61 if(!(node->animations = dynarr_alloc(1, sizeof *node->animations))) {
nuclear@21 62 return -1;
nuclear@21 63 }
nuclear@21 64 if(anm_init_animation(node->animations) == -1) {
nuclear@21 65 dynarr_free(node->animations);
nuclear@21 66 return -1;
nuclear@21 67 }
nuclear@21 68
nuclear@0 69 /* initialize thread-local matrix cache */
nuclear@0 70 pthread_key_create(&node->cache_key, 0);
nuclear@10 71 pthread_mutex_init(&node->cache_list_lock, 0);
nuclear@0 72
nuclear@0 73 return 0;
nuclear@0 74 }
nuclear@0 75
nuclear@0 76 void anm_destroy_node(struct anm_node *node)
nuclear@0 77 {
nuclear@26 78 int i, num_anim;
nuclear@0 79 free(node->name);
nuclear@0 80
nuclear@26 81 num_anim = anm_get_animation_count(node);
nuclear@26 82 for(i=0; i<num_anim; i++) {
nuclear@21 83 anm_destroy_animation(node->animations + i);
nuclear@0 84 }
nuclear@21 85 dynarr_free(node->animations);
nuclear@0 86
nuclear@0 87 /* destroy thread-specific cache */
nuclear@0 88 pthread_key_delete(node->cache_key);
nuclear@0 89
nuclear@0 90 while(node->cache_list) {
nuclear@0 91 struct mat_cache *tmp = node->cache_list;
nuclear@0 92 node->cache_list = tmp->next;
nuclear@0 93 free(tmp);
nuclear@0 94 }
nuclear@0 95 }
nuclear@0 96
nuclear@0 97 void anm_destroy_node_tree(struct anm_node *tree)
nuclear@0 98 {
nuclear@0 99 struct anm_node *c, *tmp;
nuclear@0 100
nuclear@0 101 if(!tree) return;
nuclear@0 102
nuclear@0 103 c = tree->child;
nuclear@0 104 while(c) {
nuclear@0 105 tmp = c;
nuclear@0 106 c = c->next;
nuclear@0 107
nuclear@0 108 anm_destroy_node_tree(tmp);
nuclear@0 109 }
nuclear@0 110 anm_destroy_node(tree);
nuclear@0 111 }
nuclear@0 112
nuclear@0 113 struct anm_node *anm_create_node(void)
nuclear@0 114 {
nuclear@0 115 struct anm_node *n;
nuclear@0 116
nuclear@0 117 if((n = malloc(sizeof *n))) {
nuclear@0 118 if(anm_init_node(n) == -1) {
nuclear@0 119 free(n);
nuclear@0 120 return 0;
nuclear@0 121 }
nuclear@0 122 }
nuclear@0 123 return n;
nuclear@0 124 }
nuclear@0 125
nuclear@0 126 void anm_free_node(struct anm_node *node)
nuclear@0 127 {
nuclear@0 128 anm_destroy_node(node);
nuclear@0 129 free(node);
nuclear@0 130 }
nuclear@0 131
nuclear@0 132 void anm_free_node_tree(struct anm_node *tree)
nuclear@0 133 {
nuclear@0 134 struct anm_node *c, *tmp;
nuclear@0 135
nuclear@0 136 if(!tree) return;
nuclear@0 137
nuclear@0 138 c = tree->child;
nuclear@0 139 while(c) {
nuclear@0 140 tmp = c;
nuclear@0 141 c = c->next;
nuclear@0 142
nuclear@0 143 anm_free_node_tree(tmp);
nuclear@0 144 }
nuclear@0 145
nuclear@0 146 anm_free_node(tree);
nuclear@0 147 }
nuclear@0 148
nuclear@0 149 int anm_set_node_name(struct anm_node *node, const char *name)
nuclear@0 150 {
nuclear@0 151 char *str;
nuclear@0 152
nuclear@0 153 if(!(str = malloc(strlen(name) + 1))) {
nuclear@0 154 return -1;
nuclear@0 155 }
nuclear@0 156 strcpy(str, name);
nuclear@0 157 free(node->name);
nuclear@0 158 node->name = str;
nuclear@0 159 return 0;
nuclear@0 160 }
nuclear@0 161
nuclear@0 162 const char *anm_get_node_name(struct anm_node *node)
nuclear@0 163 {
nuclear@0 164 return node->name ? node->name : "";
nuclear@0 165 }
nuclear@0 166
nuclear@0 167 void anm_link_node(struct anm_node *p, struct anm_node *c)
nuclear@0 168 {
nuclear@0 169 c->next = p->child;
nuclear@0 170 p->child = c;
nuclear@0 171
nuclear@0 172 c->parent = p;
nuclear@0 173 invalidate_cache(c);
nuclear@0 174 }
nuclear@0 175
nuclear@0 176 int anm_unlink_node(struct anm_node *p, struct anm_node *c)
nuclear@0 177 {
nuclear@0 178 struct anm_node *iter;
nuclear@0 179
nuclear@0 180 if(p->child == c) {
nuclear@0 181 p->child = c->next;
nuclear@0 182 c->next = 0;
nuclear@0 183 invalidate_cache(c);
nuclear@0 184 return 0;
nuclear@0 185 }
nuclear@0 186
nuclear@0 187 iter = p->child;
nuclear@0 188 while(iter->next) {
nuclear@0 189 if(iter->next == c) {
nuclear@0 190 iter->next = c->next;
nuclear@0 191 c->next = 0;
nuclear@0 192 invalidate_cache(c);
nuclear@0 193 return 0;
nuclear@0 194 }
nuclear@0 195 }
nuclear@0 196 return -1;
nuclear@0 197 }
nuclear@0 198
nuclear@21 199 void anm_set_pivot(struct anm_node *node, vec3_t piv)
nuclear@21 200 {
nuclear@21 201 node->pivot = piv;
nuclear@21 202 }
nuclear@21 203
nuclear@21 204 vec3_t anm_get_pivot(struct anm_node *node)
nuclear@21 205 {
nuclear@21 206 return node->pivot;
nuclear@21 207 }
nuclear@21 208
nuclear@21 209
nuclear@21 210 /* animation management */
nuclear@21 211
nuclear@21 212 int anm_use_node_animation(struct anm_node *node, int aidx)
nuclear@21 213 {
nuclear@21 214 if(aidx == node->cur_anim[0] && node->cur_anim[1] == -1) {
nuclear@21 215 return 0; /* no change, no invalidation */
nuclear@21 216 }
nuclear@21 217
nuclear@21 218 if(aidx < 0 || aidx >= anm_get_animation_count(node)) {
nuclear@21 219 return -1;
nuclear@21 220 }
nuclear@21 221
nuclear@21 222 node->cur_anim[0] = aidx;
nuclear@21 223 node->cur_anim[1] = -1;
nuclear@21 224 node->cur_mix = 0;
nuclear@24 225 node->blend_dur = -1;
nuclear@21 226
nuclear@21 227 invalidate_cache(node);
nuclear@21 228 return 0;
nuclear@21 229 }
nuclear@21 230
nuclear@21 231 int anm_use_node_animations(struct anm_node *node, int aidx, int bidx, float t)
nuclear@21 232 {
nuclear@21 233 int num_anim;
nuclear@21 234
nuclear@21 235 if(node->cur_anim[0] == aidx && node->cur_anim[1] == bidx &&
nuclear@21 236 fabs(t - node->cur_mix) < 1e-6) {
nuclear@21 237 return 0; /* no change, no invalidation */
nuclear@21 238 }
nuclear@21 239
nuclear@21 240 num_anim = anm_get_animation_count(node);
nuclear@21 241 if(aidx < 0 || aidx >= num_anim) {
nuclear@21 242 return anm_use_animation(node, bidx);
nuclear@21 243 }
nuclear@21 244 if(bidx < 0 || bidx >= num_anim) {
nuclear@21 245 return anm_use_animation(node, aidx);
nuclear@21 246 }
nuclear@21 247 node->cur_anim[0] = aidx;
nuclear@21 248 node->cur_anim[1] = bidx;
nuclear@21 249 node->cur_mix = t;
nuclear@21 250
nuclear@21 251 invalidate_cache(node);
nuclear@21 252 return 0;
nuclear@21 253 }
nuclear@21 254
nuclear@21 255 int anm_use_animation(struct anm_node *node, int aidx)
nuclear@21 256 {
nuclear@21 257 struct anm_node *child;
nuclear@21 258
nuclear@21 259 if(anm_use_node_animation(node, aidx) == -1) {
nuclear@21 260 return -1;
nuclear@21 261 }
nuclear@21 262
nuclear@21 263 child = node->child;
nuclear@21 264 while(child) {
nuclear@21 265 if(anm_use_animation(child, aidx) == -1) {
nuclear@21 266 return -1;
nuclear@21 267 }
nuclear@21 268 child = child->next;
nuclear@21 269 }
nuclear@21 270 return 0;
nuclear@21 271 }
nuclear@21 272
nuclear@21 273 int anm_use_animations(struct anm_node *node, int aidx, int bidx, float t)
nuclear@21 274 {
nuclear@21 275 struct anm_node *child;
nuclear@21 276
nuclear@21 277 if(anm_use_node_animations(node, aidx, bidx, t) == -1) {
nuclear@21 278 return -1;
nuclear@21 279 }
nuclear@21 280
nuclear@21 281 child = node->child;
nuclear@21 282 while(child) {
nuclear@21 283 if(anm_use_animations(child, aidx, bidx, t) == -1) {
nuclear@21 284 return -1;
nuclear@21 285 }
nuclear@21 286 child = child->next;
nuclear@21 287 }
nuclear@21 288 return 0;
nuclear@21 289
nuclear@21 290 }
nuclear@21 291
nuclear@24 292 void anm_set_node_animation_offset(struct anm_node *node, anm_time_t offs, int which)
nuclear@24 293 {
nuclear@24 294 if(which < 0 || which >= 2) {
nuclear@24 295 return;
nuclear@24 296 }
nuclear@24 297 node->cur_anim_offset[which] = offs;
nuclear@24 298 }
nuclear@24 299
nuclear@24 300 anm_time_t anm_get_animation_offset(const struct anm_node *node, int which)
nuclear@24 301 {
nuclear@24 302 if(which < 0 || which >= 2) {
nuclear@24 303 return 0;
nuclear@24 304 }
nuclear@24 305 return node->cur_anim_offset[which];
nuclear@24 306 }
nuclear@24 307
nuclear@24 308 void anm_set_animation_offset(struct anm_node *node, anm_time_t offs, int which)
nuclear@24 309 {
nuclear@24 310 struct anm_node *c = node->child;
nuclear@24 311 while(c) {
nuclear@24 312 anm_set_animation_offset(c, offs, which);
nuclear@24 313 c = c->next;
nuclear@24 314 }
nuclear@24 315
nuclear@24 316 anm_set_node_animation_offset(node, offs, which);
nuclear@24 317 }
nuclear@24 318
nuclear@24 319 int anm_get_active_animation_index(const struct anm_node *node, int which)
nuclear@21 320 {
nuclear@21 321 if(which < 0 || which >= 2) return -1;
nuclear@21 322 return node->cur_anim[which];
nuclear@21 323 }
nuclear@21 324
nuclear@24 325 struct anm_animation *anm_get_active_animation(const struct anm_node *node, int which)
nuclear@21 326 {
nuclear@21 327 int idx = anm_get_active_animation_index(node, which);
nuclear@21 328 if(idx < 0 || idx >= anm_get_animation_count(node)) {
nuclear@21 329 return 0;
nuclear@21 330 }
nuclear@21 331 return node->animations + idx;
nuclear@21 332 }
nuclear@21 333
nuclear@24 334 float anm_get_active_animation_mix(const struct anm_node *node)
nuclear@21 335 {
nuclear@21 336 return node->cur_mix;
nuclear@21 337 }
nuclear@21 338
nuclear@24 339 int anm_get_animation_count(const struct anm_node *node)
nuclear@21 340 {
nuclear@21 341 return dynarr_size(node->animations);
nuclear@21 342 }
nuclear@21 343
nuclear@21 344 int anm_add_node_animation(struct anm_node *node)
nuclear@21 345 {
nuclear@21 346 struct anm_animation newanim;
nuclear@21 347 anm_init_animation(&newanim);
nuclear@21 348
nuclear@21 349 node->animations = dynarr_push(node->animations, &newanim);
nuclear@21 350 return 0;
nuclear@21 351 }
nuclear@21 352
nuclear@21 353 int anm_remove_node_animation(struct anm_node *node, int idx)
nuclear@21 354 {
nuclear@21 355 fprintf(stderr, "anm_remove_animation: unimplemented!");
nuclear@21 356 abort();
nuclear@21 357 return 0;
nuclear@21 358 }
nuclear@21 359
nuclear@21 360 int anm_add_animation(struct anm_node *node)
nuclear@21 361 {
nuclear@21 362 struct anm_node *child;
nuclear@21 363
nuclear@21 364 if(anm_add_node_animation(node) == -1) {
nuclear@21 365 return -1;
nuclear@21 366 }
nuclear@21 367
nuclear@21 368 child = node->child;
nuclear@21 369 while(child) {
nuclear@21 370 if(anm_add_animation(child)) {
nuclear@21 371 return -1;
nuclear@21 372 }
nuclear@21 373 child = child->next;
nuclear@21 374 }
nuclear@21 375 return 0;
nuclear@21 376 }
nuclear@21 377
nuclear@21 378 int anm_remove_animation(struct anm_node *node, int idx)
nuclear@21 379 {
nuclear@21 380 struct anm_node *child;
nuclear@21 381
nuclear@21 382 if(anm_remove_node_animation(node, idx) == -1) {
nuclear@21 383 return -1;
nuclear@21 384 }
nuclear@21 385
nuclear@21 386 child = node->child;
nuclear@21 387 while(child) {
nuclear@21 388 if(anm_remove_animation(child, idx) == -1) {
nuclear@21 389 return -1;
nuclear@21 390 }
nuclear@21 391 child = child->next;
nuclear@21 392 }
nuclear@21 393 return 0;
nuclear@21 394 }
nuclear@21 395
nuclear@21 396 struct anm_animation *anm_get_animation(struct anm_node *node, int idx)
nuclear@21 397 {
nuclear@21 398 if(idx < 0 || idx > anm_get_animation_count(node)) {
nuclear@21 399 return 0;
nuclear@21 400 }
nuclear@21 401 return node->animations + idx;
nuclear@21 402 }
nuclear@21 403
nuclear@21 404 struct anm_animation *anm_get_animation_by_name(struct anm_node *node, const char *name)
nuclear@21 405 {
nuclear@21 406 return anm_get_animation(node, anm_find_animation(node, name));
nuclear@21 407 }
nuclear@21 408
nuclear@21 409 int anm_find_animation(struct anm_node *node, const char *name)
nuclear@21 410 {
nuclear@21 411 int i, count = anm_get_animation_count(node);
nuclear@21 412 for(i=0; i<count; i++) {
nuclear@21 413 if(strcmp(node->animations[i].name, name) == 0) {
nuclear@21 414 return i;
nuclear@21 415 }
nuclear@21 416 }
nuclear@21 417 return -1;
nuclear@21 418 }
nuclear@21 419
nuclear@21 420 /* all the rest act on the current animation(s) */
nuclear@21 421
nuclear@21 422 void anm_set_interpolator(struct anm_node *node, enum anm_interpolator in)
nuclear@21 423 {
nuclear@21 424 int i;
nuclear@21 425 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 426 if(!anim) return;
nuclear@21 427
nuclear@21 428 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 429 anm_set_track_interpolator(anim->tracks + i, in);
nuclear@21 430 }
nuclear@21 431 invalidate_cache(node);
nuclear@21 432 }
nuclear@21 433
nuclear@21 434 void anm_set_extrapolator(struct anm_node *node, enum anm_extrapolator ex)
nuclear@21 435 {
nuclear@21 436 int i;
nuclear@21 437 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 438 if(!anim) return;
nuclear@21 439
nuclear@21 440 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 441 anm_set_track_extrapolator(anim->tracks + i, ex);
nuclear@21 442 }
nuclear@21 443 invalidate_cache(node);
nuclear@21 444 }
nuclear@21 445
nuclear@23 446 void anm_set_node_active_animation_name(struct anm_node *node, const char *name)
nuclear@23 447 {
nuclear@23 448 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@23 449 if(!anim) return;
nuclear@23 450
nuclear@23 451 anm_set_animation_name(anim, name);
nuclear@23 452 }
nuclear@23 453
nuclear@23 454 void anm_set_active_animation_name(struct anm_node *node, const char *name)
nuclear@23 455 {
nuclear@23 456 struct anm_node *child;
nuclear@23 457
nuclear@23 458 anm_set_node_active_animation_name(node, name);
nuclear@23 459
nuclear@23 460 child = node->child;
nuclear@23 461 while(child) {
nuclear@23 462 anm_set_active_animation_name(child, name);
nuclear@23 463 child = child->next;
nuclear@23 464 }
nuclear@23 465 }
nuclear@23 466
nuclear@23 467 const char *anm_get_active_animation_name(struct anm_node *node)
nuclear@23 468 {
nuclear@23 469 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@23 470 if(anim) {
nuclear@23 471 return anim->name;
nuclear@23 472 }
nuclear@23 473 return 0;
nuclear@23 474 }
nuclear@23 475
nuclear@24 476 /* ---- high level animation blending ---- */
nuclear@24 477 void anm_transition(struct anm_node *node, int anmidx, anm_time_t start, anm_time_t dur)
nuclear@24 478 {
nuclear@24 479 struct anm_node *c = node->child;
nuclear@25 480
nuclear@25 481 if(anmidx == node->cur_anim[0]) {
nuclear@25 482 return;
nuclear@25 483 }
nuclear@25 484
nuclear@24 485 while(c) {
nuclear@24 486 anm_transition(c, anmidx, start, dur);
nuclear@24 487 c = c->next;
nuclear@24 488 }
nuclear@24 489
nuclear@24 490 anm_node_transition(node, anmidx, start, dur);
nuclear@24 491 }
nuclear@24 492
nuclear@24 493 void anm_node_transition(struct anm_node *node, int anmidx, anm_time_t start, anm_time_t dur)
nuclear@24 494 {
nuclear@25 495 if(anmidx == node->cur_anim[0]) {
nuclear@25 496 return;
nuclear@25 497 }
nuclear@25 498
nuclear@24 499 node->cur_anim[1] = anmidx;
nuclear@24 500 node->cur_anim_offset[1] = start;
nuclear@24 501 node->blend_dur = dur;
nuclear@24 502 }
nuclear@24 503
nuclear@24 504
nuclear@24 505 #define BLEND_START_TM node->cur_anim_offset[1]
nuclear@24 506
nuclear@24 507 static anm_time_t animation_time(struct anm_node *node, anm_time_t tm, int which)
nuclear@24 508 {
nuclear@24 509 float t;
nuclear@24 510
nuclear@24 511 if(node->blend_dur >= 0) {
nuclear@24 512 /* we're in transition... */
nuclear@24 513 t = (float)(tm - BLEND_START_TM) / (float)node->blend_dur;
nuclear@24 514 if(t < 0.0) t = 0.0;
nuclear@24 515
nuclear@24 516 node->cur_mix = t;
nuclear@24 517
nuclear@24 518 if(t > 1.0) {
nuclear@24 519 /* switch completely over to the target animation and stop blending */
nuclear@24 520 anm_use_node_animation(node, node->cur_anim[1]);
nuclear@24 521 node->cur_anim_offset[0] = node->cur_anim_offset[1];
nuclear@24 522 }
nuclear@24 523 }
nuclear@24 524
nuclear@24 525 return tm - node->cur_anim_offset[which];
nuclear@24 526 }
nuclear@24 527
nuclear@24 528
nuclear@0 529 void anm_set_position(struct anm_node *node, vec3_t pos, anm_time_t tm)
nuclear@0 530 {
nuclear@21 531 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 532 if(!anim) return;
nuclear@21 533
nuclear@21 534 anm_set_value(anim->tracks + ANM_TRACK_POS_X, tm, pos.x);
nuclear@21 535 anm_set_value(anim->tracks + ANM_TRACK_POS_Y, tm, pos.y);
nuclear@21 536 anm_set_value(anim->tracks + ANM_TRACK_POS_Z, tm, pos.z);
nuclear@0 537 invalidate_cache(node);
nuclear@0 538 }
nuclear@0 539
nuclear@24 540
nuclear@0 541 vec3_t anm_get_node_position(struct anm_node *node, anm_time_t tm)
nuclear@0 542 {
nuclear@0 543 vec3_t v;
nuclear@24 544 anm_time_t tm0 = animation_time(node, tm, 0);
nuclear@21 545 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@21 546 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@21 547
nuclear@21 548 if(!anim0) {
nuclear@21 549 return v3_cons(0, 0, 0);
nuclear@21 550 }
nuclear@21 551
nuclear@24 552 v.x = anm_get_value(anim0->tracks + ANM_TRACK_POS_X, tm0);
nuclear@24 553 v.y = anm_get_value(anim0->tracks + ANM_TRACK_POS_Y, tm0);
nuclear@24 554 v.z = anm_get_value(anim0->tracks + ANM_TRACK_POS_Z, tm0);
nuclear@21 555
nuclear@21 556 if(anim1) {
nuclear@21 557 vec3_t v1;
nuclear@24 558 anm_time_t tm1 = animation_time(node, tm, 1);
nuclear@24 559 v1.x = anm_get_value(anim1->tracks + ANM_TRACK_POS_X, tm1);
nuclear@24 560 v1.y = anm_get_value(anim1->tracks + ANM_TRACK_POS_Y, tm1);
nuclear@24 561 v1.z = anm_get_value(anim1->tracks + ANM_TRACK_POS_Z, tm1);
nuclear@21 562
nuclear@21 563 v.x = v.x + (v1.x - v.x) * node->cur_mix;
nuclear@21 564 v.y = v.y + (v1.y - v.y) * node->cur_mix;
nuclear@21 565 v.z = v.z + (v1.z - v.z) * node->cur_mix;
nuclear@21 566 }
nuclear@21 567
nuclear@0 568 return v;
nuclear@0 569 }
nuclear@0 570
nuclear@0 571 void anm_set_rotation(struct anm_node *node, quat_t rot, anm_time_t tm)
nuclear@0 572 {
nuclear@21 573 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 574 if(!anim) return;
nuclear@21 575
nuclear@21 576 anm_set_value(anim->tracks + ANM_TRACK_ROT_X, tm, rot.x);
nuclear@21 577 anm_set_value(anim->tracks + ANM_TRACK_ROT_Y, tm, rot.y);
nuclear@21 578 anm_set_value(anim->tracks + ANM_TRACK_ROT_Z, tm, rot.z);
nuclear@21 579 anm_set_value(anim->tracks + ANM_TRACK_ROT_W, tm, rot.w);
nuclear@0 580 invalidate_cache(node);
nuclear@0 581 }
nuclear@0 582
nuclear@21 583 static quat_t get_node_rotation(struct anm_node *node, anm_time_t tm, struct anm_animation *anim)
nuclear@0 584 {
nuclear@7 585 #ifndef ROT_USE_SLERP
nuclear@7 586 quat_t q;
nuclear@21 587 q.x = anm_get_value(anim->tracks + ANM_TRACK_ROT_X, tm);
nuclear@21 588 q.y = anm_get_value(anim->tracks + ANM_TRACK_ROT_Y, tm);
nuclear@21 589 q.z = anm_get_value(anim->tracks + ANM_TRACK_ROT_Z, tm);
nuclear@21 590 q.w = anm_get_value(anim->tracks + ANM_TRACK_ROT_W, tm);
nuclear@7 591 return q;
nuclear@7 592 #else
nuclear@0 593 int idx0, idx1, last_idx;
nuclear@0 594 anm_time_t tstart, tend;
nuclear@0 595 float t, dt;
nuclear@0 596 struct anm_track *track_x, *track_y, *track_z, *track_w;
nuclear@0 597 quat_t q, q1, q2;
nuclear@0 598
nuclear@21 599 track_x = anim->tracks + ANM_TRACK_ROT_X;
nuclear@21 600 track_y = anim->tracks + ANM_TRACK_ROT_Y;
nuclear@21 601 track_z = anim->tracks + ANM_TRACK_ROT_Z;
nuclear@21 602 track_w = anim->tracks + ANM_TRACK_ROT_W;
nuclear@0 603
nuclear@0 604 if(!track_x->count) {
nuclear@0 605 q.x = track_x->def_val;
nuclear@0 606 q.y = track_y->def_val;
nuclear@0 607 q.z = track_z->def_val;
nuclear@0 608 q.w = track_w->def_val;
nuclear@0 609 return q;
nuclear@0 610 }
nuclear@0 611
nuclear@0 612 last_idx = track_x->count - 1;
nuclear@0 613
nuclear@0 614 tstart = track_x->keys[0].time;
nuclear@0 615 tend = track_x->keys[last_idx].time;
nuclear@6 616
nuclear@6 617 if(tstart == tend) {
nuclear@6 618 q.x = track_x->keys[0].val;
nuclear@6 619 q.y = track_y->keys[0].val;
nuclear@6 620 q.z = track_z->keys[0].val;
nuclear@6 621 q.w = track_w->keys[0].val;
nuclear@6 622 return q;
nuclear@6 623 }
nuclear@6 624
nuclear@0 625 tm = anm_remap_time(track_x, tm, tstart, tend);
nuclear@0 626
nuclear@0 627 idx0 = anm_get_key_interval(track_x, tm);
nuclear@0 628 assert(idx0 >= 0 && idx0 < track_x->count);
nuclear@0 629 idx1 = idx0 + 1;
nuclear@0 630
nuclear@6 631 if(idx0 == last_idx) {
nuclear@6 632 q.x = track_x->keys[idx0].val;
nuclear@6 633 q.y = track_y->keys[idx0].val;
nuclear@6 634 q.z = track_z->keys[idx0].val;
nuclear@6 635 q.w = track_w->keys[idx0].val;
nuclear@6 636 return q;
nuclear@6 637 }
nuclear@6 638
nuclear@0 639 dt = (float)(track_x->keys[idx1].time - track_x->keys[idx0].time);
nuclear@0 640 t = (float)(tm - track_x->keys[idx0].time) / dt;
nuclear@0 641
nuclear@0 642 q1.x = track_x->keys[idx0].val;
nuclear@0 643 q1.y = track_y->keys[idx0].val;
nuclear@0 644 q1.z = track_z->keys[idx0].val;
nuclear@0 645 q1.w = track_w->keys[idx0].val;
nuclear@0 646
nuclear@0 647 q2.x = track_x->keys[idx1].val;
nuclear@0 648 q2.y = track_y->keys[idx1].val;
nuclear@0 649 q2.z = track_z->keys[idx1].val;
nuclear@0 650 q2.w = track_w->keys[idx1].val;
nuclear@0 651
nuclear@9 652 /*q1 = quat_normalize(q1);
nuclear@9 653 q2 = quat_normalize(q2);*/
nuclear@9 654
nuclear@0 655 return quat_slerp(q1, q2, t);
nuclear@7 656 #endif
nuclear@0 657 }
nuclear@0 658
nuclear@21 659 quat_t anm_get_node_rotation(struct anm_node *node, anm_time_t tm)
nuclear@21 660 {
nuclear@21 661 quat_t q;
nuclear@24 662 anm_time_t tm0 = animation_time(node, tm, 0);
nuclear@21 663 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@21 664 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@21 665
nuclear@21 666 if(!anim0) {
nuclear@21 667 return quat_identity();
nuclear@21 668 }
nuclear@21 669
nuclear@24 670 q = get_node_rotation(node, tm0, anim0);
nuclear@21 671
nuclear@21 672 if(anim1) {
nuclear@24 673 anm_time_t tm1 = animation_time(node, tm, 1);
nuclear@24 674 quat_t q1 = get_node_rotation(node, tm1, anim1);
nuclear@21 675
nuclear@21 676 q = quat_slerp(q, q1, node->cur_mix);
nuclear@21 677 }
nuclear@21 678 return q;
nuclear@21 679 }
nuclear@21 680
nuclear@0 681 void anm_set_scaling(struct anm_node *node, vec3_t scl, anm_time_t tm)
nuclear@0 682 {
nuclear@21 683 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 684 if(!anim) return;
nuclear@21 685
nuclear@21 686 anm_set_value(anim->tracks + ANM_TRACK_SCL_X, tm, scl.x);
nuclear@21 687 anm_set_value(anim->tracks + ANM_TRACK_SCL_Y, tm, scl.y);
nuclear@21 688 anm_set_value(anim->tracks + ANM_TRACK_SCL_Z, tm, scl.z);
nuclear@0 689 invalidate_cache(node);
nuclear@0 690 }
nuclear@0 691
nuclear@0 692 vec3_t anm_get_node_scaling(struct anm_node *node, anm_time_t tm)
nuclear@0 693 {
nuclear@0 694 vec3_t v;
nuclear@24 695 anm_time_t tm0 = animation_time(node, tm, 0);
nuclear@21 696 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@21 697 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@21 698
nuclear@21 699 if(!anim0) {
nuclear@21 700 return v3_cons(1, 1, 1);
nuclear@21 701 }
nuclear@21 702
nuclear@24 703 v.x = anm_get_value(anim0->tracks + ANM_TRACK_SCL_X, tm0);
nuclear@24 704 v.y = anm_get_value(anim0->tracks + ANM_TRACK_SCL_Y, tm0);
nuclear@24 705 v.z = anm_get_value(anim0->tracks + ANM_TRACK_SCL_Z, tm0);
nuclear@21 706
nuclear@21 707 if(anim1) {
nuclear@21 708 vec3_t v1;
nuclear@24 709 anm_time_t tm1 = animation_time(node, tm, 1);
nuclear@24 710 v1.x = anm_get_value(anim1->tracks + ANM_TRACK_SCL_X, tm1);
nuclear@24 711 v1.y = anm_get_value(anim1->tracks + ANM_TRACK_SCL_Y, tm1);
nuclear@24 712 v1.z = anm_get_value(anim1->tracks + ANM_TRACK_SCL_Z, tm1);
nuclear@21 713
nuclear@21 714 v.x = v.x + (v1.x - v.x) * node->cur_mix;
nuclear@21 715 v.y = v.y + (v1.y - v.y) * node->cur_mix;
nuclear@21 716 v.z = v.z + (v1.z - v.z) * node->cur_mix;
nuclear@21 717 }
nuclear@21 718
nuclear@0 719 return v;
nuclear@0 720 }
nuclear@0 721
nuclear@0 722
nuclear@0 723 vec3_t anm_get_position(struct anm_node *node, anm_time_t tm)
nuclear@0 724 {
nuclear@0 725 mat4_t xform;
nuclear@0 726 vec3_t pos = {0.0, 0.0, 0.0};
nuclear@0 727
nuclear@0 728 if(!node->parent) {
nuclear@0 729 return anm_get_node_position(node, tm);
nuclear@0 730 }
nuclear@0 731
nuclear@0 732 anm_get_matrix(node, xform, tm);
nuclear@0 733 return v3_transform(pos, xform);
nuclear@0 734 }
nuclear@0 735
nuclear@0 736 quat_t anm_get_rotation(struct anm_node *node, anm_time_t tm)
nuclear@0 737 {
nuclear@0 738 quat_t rot, prot;
nuclear@0 739 rot = anm_get_node_rotation(node, tm);
nuclear@0 740
nuclear@0 741 if(!node->parent) {
nuclear@0 742 return rot;
nuclear@0 743 }
nuclear@0 744
nuclear@0 745 prot = anm_get_rotation(node->parent, tm);
nuclear@0 746 return quat_mul(prot, rot);
nuclear@0 747 }
nuclear@0 748
nuclear@0 749 vec3_t anm_get_scaling(struct anm_node *node, anm_time_t tm)
nuclear@0 750 {
nuclear@0 751 vec3_t s, ps;
nuclear@0 752 s = anm_get_node_scaling(node, tm);
nuclear@0 753
nuclear@0 754 if(!node->parent) {
nuclear@0 755 return s;
nuclear@0 756 }
nuclear@0 757
nuclear@0 758 ps = anm_get_scaling(node->parent, tm);
nuclear@0 759 return v3_mul(s, ps);
nuclear@0 760 }
nuclear@0 761
nuclear@5 762 void anm_get_node_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@5 763 {
nuclear@9 764 int i;
nuclear@9 765 mat4_t rmat;
nuclear@5 766 vec3_t pos, scale;
nuclear@5 767 quat_t rot;
nuclear@5 768
nuclear@5 769 pos = anm_get_node_position(node, tm);
nuclear@5 770 rot = anm_get_node_rotation(node, tm);
nuclear@5 771 scale = anm_get_node_scaling(node, tm);
nuclear@5 772
nuclear@9 773 m4_set_translation(mat, node->pivot.x, node->pivot.y, node->pivot.z);
nuclear@5 774
nuclear@5 775 quat_to_mat4(rmat, rot);
nuclear@9 776 for(i=0; i<3; i++) {
nuclear@9 777 mat[i][0] = rmat[i][0];
nuclear@9 778 mat[i][1] = rmat[i][1];
nuclear@9 779 mat[i][2] = rmat[i][2];
nuclear@9 780 }
nuclear@9 781 /* this loop is equivalent to: m4_mult(mat, mat, rmat); */
nuclear@5 782
nuclear@9 783 mat[0][0] *= scale.x; mat[0][1] *= scale.y; mat[0][2] *= scale.z; mat[0][3] += pos.x;
nuclear@9 784 mat[1][0] *= scale.x; mat[1][1] *= scale.y; mat[1][2] *= scale.z; mat[1][3] += pos.y;
nuclear@9 785 mat[2][0] *= scale.x; mat[2][1] *= scale.y; mat[2][2] *= scale.z; mat[2][3] += pos.z;
nuclear@9 786
nuclear@9 787 m4_translate(mat, -node->pivot.x, -node->pivot.y, -node->pivot.z);
nuclear@9 788
nuclear@9 789 /* that's basically: pivot * rotation * translation * scaling * -pivot */
nuclear@5 790 }
nuclear@5 791
nuclear@5 792 void anm_get_node_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@5 793 {
nuclear@5 794 mat4_t tmp;
nuclear@5 795 anm_get_node_matrix(node, tmp, tm);
nuclear@5 796 m4_inverse(mat, tmp);
nuclear@5 797 }
nuclear@5 798
nuclear@20 799 void anm_eval_node(struct anm_node *node, anm_time_t tm)
nuclear@20 800 {
nuclear@20 801 anm_get_node_matrix(node, node->matrix, tm);
nuclear@20 802 }
nuclear@20 803
nuclear@20 804 void anm_eval(struct anm_node *node, anm_time_t tm)
nuclear@20 805 {
nuclear@20 806 struct anm_node *c;
nuclear@20 807
nuclear@20 808 anm_eval_node(node, tm);
nuclear@20 809
nuclear@20 810 if(node->parent) {
nuclear@20 811 /* due to post-order traversal, the parent matrix is already evaluated */
nuclear@20 812 m4_mult(node->matrix, node->parent->matrix, node->matrix);
nuclear@20 813 }
nuclear@20 814
nuclear@20 815 /* recersively evaluate all children */
nuclear@20 816 c = node->child;
nuclear@20 817 while(c) {
nuclear@20 818 anm_eval(c, tm);
nuclear@20 819 c = c->next;
nuclear@20 820 }
nuclear@20 821 }
nuclear@20 822
nuclear@0 823 void anm_get_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@0 824 {
nuclear@0 825 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@0 826 if(!cache) {
nuclear@0 827 cache = malloc(sizeof *cache);
nuclear@0 828 assert(cache);
nuclear@0 829
nuclear@0 830 pthread_mutex_lock(&node->cache_list_lock);
nuclear@0 831 cache->next = node->cache_list;
nuclear@0 832 node->cache_list = cache;
nuclear@0 833 pthread_mutex_unlock(&node->cache_list_lock);
nuclear@0 834
nuclear@0 835 cache->time = ANM_TIME_INVAL;
nuclear@2 836 cache->inv_time = ANM_TIME_INVAL;
nuclear@0 837 pthread_setspecific(node->cache_key, cache);
nuclear@0 838 }
nuclear@0 839
nuclear@0 840 if(cache->time != tm) {
nuclear@5 841 anm_get_node_matrix(node, cache->matrix, tm);
nuclear@0 842
nuclear@0 843 if(node->parent) {
nuclear@0 844 mat4_t parent_mat;
nuclear@0 845
nuclear@4 846 anm_get_matrix(node->parent, parent_mat, tm);
nuclear@0 847 m4_mult(cache->matrix, parent_mat, cache->matrix);
nuclear@0 848 }
nuclear@0 849 cache->time = tm;
nuclear@0 850 }
nuclear@0 851 m4_copy(mat, cache->matrix);
nuclear@0 852 }
nuclear@0 853
nuclear@0 854 void anm_get_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@0 855 {
nuclear@0 856 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@0 857 if(!cache) {
nuclear@0 858 cache = malloc(sizeof *cache);
nuclear@0 859 assert(cache);
nuclear@0 860
nuclear@0 861 pthread_mutex_lock(&node->cache_list_lock);
nuclear@0 862 cache->next = node->cache_list;
nuclear@0 863 node->cache_list = cache;
nuclear@0 864 pthread_mutex_unlock(&node->cache_list_lock);
nuclear@0 865
nuclear@0 866 cache->inv_time = ANM_TIME_INVAL;
nuclear@2 867 cache->inv_time = ANM_TIME_INVAL;
nuclear@0 868 pthread_setspecific(node->cache_key, cache);
nuclear@0 869 }
nuclear@0 870
nuclear@0 871 if(cache->inv_time != tm) {
nuclear@0 872 anm_get_matrix(node, mat, tm);
nuclear@0 873 m4_inverse(cache->inv_matrix, mat);
nuclear@0 874 cache->inv_time = tm;
nuclear@0 875 }
nuclear@0 876 m4_copy(mat, cache->inv_matrix);
nuclear@0 877 }
nuclear@0 878
nuclear@0 879 anm_time_t anm_get_start_time(struct anm_node *node)
nuclear@0 880 {
nuclear@21 881 int i, j;
nuclear@0 882 struct anm_node *c;
nuclear@0 883 anm_time_t res = LONG_MAX;
nuclear@0 884
nuclear@21 885 for(j=0; j<2; j++) {
nuclear@21 886 struct anm_animation *anim = anm_get_active_animation(node, j);
nuclear@21 887 if(!anim) break;
nuclear@21 888
nuclear@21 889 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 890 if(anim->tracks[i].count) {
nuclear@21 891 anm_time_t tm = anim->tracks[i].keys[0].time;
nuclear@21 892 if(tm < res) {
nuclear@21 893 res = tm;
nuclear@21 894 }
nuclear@0 895 }
nuclear@0 896 }
nuclear@0 897 }
nuclear@0 898
nuclear@0 899 c = node->child;
nuclear@0 900 while(c) {
nuclear@0 901 anm_time_t tm = anm_get_start_time(c);
nuclear@0 902 if(tm < res) {
nuclear@0 903 res = tm;
nuclear@0 904 }
nuclear@0 905 c = c->next;
nuclear@0 906 }
nuclear@0 907 return res;
nuclear@0 908 }
nuclear@0 909
nuclear@0 910 anm_time_t anm_get_end_time(struct anm_node *node)
nuclear@0 911 {
nuclear@21 912 int i, j;
nuclear@0 913 struct anm_node *c;
nuclear@0 914 anm_time_t res = LONG_MIN;
nuclear@0 915
nuclear@21 916 for(j=0; j<2; j++) {
nuclear@21 917 struct anm_animation *anim = anm_get_active_animation(node, j);
nuclear@21 918 if(!anim) break;
nuclear@21 919
nuclear@21 920 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 921 if(anim->tracks[i].count) {
nuclear@21 922 anm_time_t tm = anim->tracks[i].keys[anim->tracks[i].count - 1].time;
nuclear@21 923 if(tm > res) {
nuclear@21 924 res = tm;
nuclear@21 925 }
nuclear@0 926 }
nuclear@0 927 }
nuclear@0 928 }
nuclear@0 929
nuclear@0 930 c = node->child;
nuclear@0 931 while(c) {
nuclear@0 932 anm_time_t tm = anm_get_end_time(c);
nuclear@0 933 if(tm > res) {
nuclear@0 934 res = tm;
nuclear@0 935 }
nuclear@0 936 c = c->next;
nuclear@0 937 }
nuclear@0 938 return res;
nuclear@0 939 }
nuclear@0 940
nuclear@0 941 static void invalidate_cache(struct anm_node *node)
nuclear@0 942 {
nuclear@0 943 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@0 944 if(cache) {
nuclear@13 945 cache->time = cache->inv_time = ANM_TIME_INVAL;
nuclear@0 946 }
nuclear@0 947 }