libanim

annotate src/anim.c @ 21:5993f405a1cb

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implemented multiple animations per node, and blending between two animations
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 27 Dec 2013 06:28:43 +0200
parents 3c2428cb38f7
children 9758004136f8
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@21 42 /* ---- node implementation ----- */
nuclear@21 43
nuclear@21 44 int anm_init_node(struct anm_node *node)
nuclear@21 45 {
nuclear@0 46 memset(node, 0, sizeof *node);
nuclear@0 47
nuclear@21 48 node->cur_anim[1] = -1;
nuclear@21 49 node->cur_mix = 0;
nuclear@21 50
nuclear@21 51 if(!(node->animations = dynarr_alloc(1, sizeof *node->animations))) {
nuclear@21 52 return -1;
nuclear@21 53 }
nuclear@21 54 if(anm_init_animation(node->animations) == -1) {
nuclear@21 55 dynarr_free(node->animations);
nuclear@21 56 return -1;
nuclear@21 57 }
nuclear@21 58
nuclear@0 59 /* initialize thread-local matrix cache */
nuclear@0 60 pthread_key_create(&node->cache_key, 0);
nuclear@10 61 pthread_mutex_init(&node->cache_list_lock, 0);
nuclear@0 62
nuclear@0 63 return 0;
nuclear@0 64 }
nuclear@0 65
nuclear@0 66 void anm_destroy_node(struct anm_node *node)
nuclear@0 67 {
nuclear@0 68 int i;
nuclear@0 69 free(node->name);
nuclear@0 70
nuclear@0 71 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 72 anm_destroy_animation(node->animations + i);
nuclear@0 73 }
nuclear@21 74 dynarr_free(node->animations);
nuclear@0 75
nuclear@0 76 /* destroy thread-specific cache */
nuclear@0 77 pthread_key_delete(node->cache_key);
nuclear@0 78
nuclear@0 79 while(node->cache_list) {
nuclear@0 80 struct mat_cache *tmp = node->cache_list;
nuclear@0 81 node->cache_list = tmp->next;
nuclear@0 82 free(tmp);
nuclear@0 83 }
nuclear@0 84 }
nuclear@0 85
nuclear@0 86 void anm_destroy_node_tree(struct anm_node *tree)
nuclear@0 87 {
nuclear@0 88 struct anm_node *c, *tmp;
nuclear@0 89
nuclear@0 90 if(!tree) return;
nuclear@0 91
nuclear@0 92 c = tree->child;
nuclear@0 93 while(c) {
nuclear@0 94 tmp = c;
nuclear@0 95 c = c->next;
nuclear@0 96
nuclear@0 97 anm_destroy_node_tree(tmp);
nuclear@0 98 }
nuclear@0 99 anm_destroy_node(tree);
nuclear@0 100 }
nuclear@0 101
nuclear@0 102 struct anm_node *anm_create_node(void)
nuclear@0 103 {
nuclear@0 104 struct anm_node *n;
nuclear@0 105
nuclear@0 106 if((n = malloc(sizeof *n))) {
nuclear@0 107 if(anm_init_node(n) == -1) {
nuclear@0 108 free(n);
nuclear@0 109 return 0;
nuclear@0 110 }
nuclear@0 111 }
nuclear@0 112 return n;
nuclear@0 113 }
nuclear@0 114
nuclear@0 115 void anm_free_node(struct anm_node *node)
nuclear@0 116 {
nuclear@0 117 anm_destroy_node(node);
nuclear@0 118 free(node);
nuclear@0 119 }
nuclear@0 120
nuclear@0 121 void anm_free_node_tree(struct anm_node *tree)
nuclear@0 122 {
nuclear@0 123 struct anm_node *c, *tmp;
nuclear@0 124
nuclear@0 125 if(!tree) return;
nuclear@0 126
nuclear@0 127 c = tree->child;
nuclear@0 128 while(c) {
nuclear@0 129 tmp = c;
nuclear@0 130 c = c->next;
nuclear@0 131
nuclear@0 132 anm_free_node_tree(tmp);
nuclear@0 133 }
nuclear@0 134
nuclear@0 135 anm_free_node(tree);
nuclear@0 136 }
nuclear@0 137
nuclear@0 138 int anm_set_node_name(struct anm_node *node, const char *name)
nuclear@0 139 {
nuclear@0 140 char *str;
nuclear@0 141
nuclear@0 142 if(!(str = malloc(strlen(name) + 1))) {
nuclear@0 143 return -1;
nuclear@0 144 }
nuclear@0 145 strcpy(str, name);
nuclear@0 146 free(node->name);
nuclear@0 147 node->name = str;
nuclear@0 148 return 0;
nuclear@0 149 }
nuclear@0 150
nuclear@0 151 const char *anm_get_node_name(struct anm_node *node)
nuclear@0 152 {
nuclear@0 153 return node->name ? node->name : "";
nuclear@0 154 }
nuclear@0 155
nuclear@0 156 void anm_link_node(struct anm_node *p, struct anm_node *c)
nuclear@0 157 {
nuclear@0 158 c->next = p->child;
nuclear@0 159 p->child = c;
nuclear@0 160
nuclear@0 161 c->parent = p;
nuclear@0 162 invalidate_cache(c);
nuclear@0 163 }
nuclear@0 164
nuclear@0 165 int anm_unlink_node(struct anm_node *p, struct anm_node *c)
nuclear@0 166 {
nuclear@0 167 struct anm_node *iter;
nuclear@0 168
nuclear@0 169 if(p->child == c) {
nuclear@0 170 p->child = c->next;
nuclear@0 171 c->next = 0;
nuclear@0 172 invalidate_cache(c);
nuclear@0 173 return 0;
nuclear@0 174 }
nuclear@0 175
nuclear@0 176 iter = p->child;
nuclear@0 177 while(iter->next) {
nuclear@0 178 if(iter->next == c) {
nuclear@0 179 iter->next = c->next;
nuclear@0 180 c->next = 0;
nuclear@0 181 invalidate_cache(c);
nuclear@0 182 return 0;
nuclear@0 183 }
nuclear@0 184 }
nuclear@0 185 return -1;
nuclear@0 186 }
nuclear@0 187
nuclear@21 188 void anm_set_pivot(struct anm_node *node, vec3_t piv)
nuclear@21 189 {
nuclear@21 190 node->pivot = piv;
nuclear@21 191 }
nuclear@21 192
nuclear@21 193 vec3_t anm_get_pivot(struct anm_node *node)
nuclear@21 194 {
nuclear@21 195 return node->pivot;
nuclear@21 196 }
nuclear@21 197
nuclear@21 198
nuclear@21 199 /* animation management */
nuclear@21 200
nuclear@21 201 int anm_use_node_animation(struct anm_node *node, int aidx)
nuclear@21 202 {
nuclear@21 203 if(aidx == node->cur_anim[0] && node->cur_anim[1] == -1) {
nuclear@21 204 return 0; /* no change, no invalidation */
nuclear@21 205 }
nuclear@21 206
nuclear@21 207 if(aidx < 0 || aidx >= anm_get_animation_count(node)) {
nuclear@21 208 return -1;
nuclear@21 209 }
nuclear@21 210
nuclear@21 211 node->cur_anim[0] = aidx;
nuclear@21 212 node->cur_anim[1] = -1;
nuclear@21 213 node->cur_mix = 0;
nuclear@21 214
nuclear@21 215 invalidate_cache(node);
nuclear@21 216 return 0;
nuclear@21 217 }
nuclear@21 218
nuclear@21 219 int anm_use_node_animations(struct anm_node *node, int aidx, int bidx, float t)
nuclear@21 220 {
nuclear@21 221 int num_anim;
nuclear@21 222
nuclear@21 223 if(node->cur_anim[0] == aidx && node->cur_anim[1] == bidx &&
nuclear@21 224 fabs(t - node->cur_mix) < 1e-6) {
nuclear@21 225 return 0; /* no change, no invalidation */
nuclear@21 226 }
nuclear@21 227
nuclear@21 228 num_anim = anm_get_animation_count(node);
nuclear@21 229 if(aidx < 0 || aidx >= num_anim) {
nuclear@21 230 return anm_use_animation(node, bidx);
nuclear@21 231 }
nuclear@21 232 if(bidx < 0 || bidx >= num_anim) {
nuclear@21 233 return anm_use_animation(node, aidx);
nuclear@21 234 }
nuclear@21 235 node->cur_anim[0] = aidx;
nuclear@21 236 node->cur_anim[1] = bidx;
nuclear@21 237 node->cur_mix = t;
nuclear@21 238
nuclear@21 239 invalidate_cache(node);
nuclear@21 240 return 0;
nuclear@21 241 }
nuclear@21 242
nuclear@21 243 int anm_use_animation(struct anm_node *node, int aidx)
nuclear@21 244 {
nuclear@21 245 struct anm_node *child;
nuclear@21 246
nuclear@21 247 if(anm_use_node_animation(node, aidx) == -1) {
nuclear@21 248 return -1;
nuclear@21 249 }
nuclear@21 250
nuclear@21 251 child = node->child;
nuclear@21 252 while(child) {
nuclear@21 253 if(anm_use_animation(child, aidx) == -1) {
nuclear@21 254 return -1;
nuclear@21 255 }
nuclear@21 256 child = child->next;
nuclear@21 257 }
nuclear@21 258 return 0;
nuclear@21 259 }
nuclear@21 260
nuclear@21 261 int anm_use_animations(struct anm_node *node, int aidx, int bidx, float t)
nuclear@21 262 {
nuclear@21 263 struct anm_node *child;
nuclear@21 264
nuclear@21 265 if(anm_use_node_animations(node, aidx, bidx, t) == -1) {
nuclear@21 266 return -1;
nuclear@21 267 }
nuclear@21 268
nuclear@21 269 child = node->child;
nuclear@21 270 while(child) {
nuclear@21 271 if(anm_use_animations(child, aidx, bidx, t) == -1) {
nuclear@21 272 return -1;
nuclear@21 273 }
nuclear@21 274 child = child->next;
nuclear@21 275 }
nuclear@21 276 return 0;
nuclear@21 277
nuclear@21 278 }
nuclear@21 279
nuclear@21 280 int anm_get_active_animation_index(struct anm_node *node, int which)
nuclear@21 281 {
nuclear@21 282 if(which < 0 || which >= 2) return -1;
nuclear@21 283 return node->cur_anim[which];
nuclear@21 284 }
nuclear@21 285
nuclear@21 286 struct anm_animation *anm_get_active_animation(struct anm_node *node, int which)
nuclear@21 287 {
nuclear@21 288 int idx = anm_get_active_animation_index(node, which);
nuclear@21 289 if(idx < 0 || idx >= anm_get_animation_count(node)) {
nuclear@21 290 return 0;
nuclear@21 291 }
nuclear@21 292 return node->animations + idx;
nuclear@21 293 }
nuclear@21 294
nuclear@21 295 float anm_get_active_animation_mix(struct anm_node *node)
nuclear@21 296 {
nuclear@21 297 return node->cur_mix;
nuclear@21 298 }
nuclear@21 299
nuclear@21 300 int anm_get_animation_count(struct anm_node *node)
nuclear@21 301 {
nuclear@21 302 return dynarr_size(node->animations);
nuclear@21 303 }
nuclear@21 304
nuclear@21 305 int anm_add_node_animation(struct anm_node *node)
nuclear@21 306 {
nuclear@21 307 struct anm_animation newanim;
nuclear@21 308 anm_init_animation(&newanim);
nuclear@21 309
nuclear@21 310 node->animations = dynarr_push(node->animations, &newanim);
nuclear@21 311 return 0;
nuclear@21 312 }
nuclear@21 313
nuclear@21 314 int anm_remove_node_animation(struct anm_node *node, int idx)
nuclear@21 315 {
nuclear@21 316 fprintf(stderr, "anm_remove_animation: unimplemented!");
nuclear@21 317 abort();
nuclear@21 318 return 0;
nuclear@21 319 }
nuclear@21 320
nuclear@21 321 int anm_add_animation(struct anm_node *node)
nuclear@21 322 {
nuclear@21 323 struct anm_node *child;
nuclear@21 324
nuclear@21 325 if(anm_add_node_animation(node) == -1) {
nuclear@21 326 return -1;
nuclear@21 327 }
nuclear@21 328
nuclear@21 329 child = node->child;
nuclear@21 330 while(child) {
nuclear@21 331 if(anm_add_animation(child)) {
nuclear@21 332 return -1;
nuclear@21 333 }
nuclear@21 334 child = child->next;
nuclear@21 335 }
nuclear@21 336 return 0;
nuclear@21 337 }
nuclear@21 338
nuclear@21 339 int anm_remove_animation(struct anm_node *node, int idx)
nuclear@21 340 {
nuclear@21 341 struct anm_node *child;
nuclear@21 342
nuclear@21 343 if(anm_remove_node_animation(node, idx) == -1) {
nuclear@21 344 return -1;
nuclear@21 345 }
nuclear@21 346
nuclear@21 347 child = node->child;
nuclear@21 348 while(child) {
nuclear@21 349 if(anm_remove_animation(child, idx) == -1) {
nuclear@21 350 return -1;
nuclear@21 351 }
nuclear@21 352 child = child->next;
nuclear@21 353 }
nuclear@21 354 return 0;
nuclear@21 355 }
nuclear@21 356
nuclear@21 357 struct anm_animation *anm_get_animation(struct anm_node *node, int idx)
nuclear@21 358 {
nuclear@21 359 if(idx < 0 || idx > anm_get_animation_count(node)) {
nuclear@21 360 return 0;
nuclear@21 361 }
nuclear@21 362 return node->animations + idx;
nuclear@21 363 }
nuclear@21 364
nuclear@21 365 struct anm_animation *anm_get_animation_by_name(struct anm_node *node, const char *name)
nuclear@21 366 {
nuclear@21 367 return anm_get_animation(node, anm_find_animation(node, name));
nuclear@21 368 }
nuclear@21 369
nuclear@21 370 int anm_find_animation(struct anm_node *node, const char *name)
nuclear@21 371 {
nuclear@21 372 int i, count = anm_get_animation_count(node);
nuclear@21 373 for(i=0; i<count; i++) {
nuclear@21 374 if(strcmp(node->animations[i].name, name) == 0) {
nuclear@21 375 return i;
nuclear@21 376 }
nuclear@21 377 }
nuclear@21 378 return -1;
nuclear@21 379 }
nuclear@21 380
nuclear@21 381 /* all the rest act on the current animation(s) */
nuclear@21 382
nuclear@21 383 void anm_set_interpolator(struct anm_node *node, enum anm_interpolator in)
nuclear@21 384 {
nuclear@21 385 int i;
nuclear@21 386 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 387 if(!anim) return;
nuclear@21 388
nuclear@21 389 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 390 anm_set_track_interpolator(anim->tracks + i, in);
nuclear@21 391 }
nuclear@21 392 invalidate_cache(node);
nuclear@21 393 }
nuclear@21 394
nuclear@21 395 void anm_set_extrapolator(struct anm_node *node, enum anm_extrapolator ex)
nuclear@21 396 {
nuclear@21 397 int i;
nuclear@21 398 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 399 if(!anim) return;
nuclear@21 400
nuclear@21 401 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 402 anm_set_track_extrapolator(anim->tracks + i, ex);
nuclear@21 403 }
nuclear@21 404 invalidate_cache(node);
nuclear@21 405 }
nuclear@21 406
nuclear@0 407 void anm_set_position(struct anm_node *node, vec3_t pos, anm_time_t tm)
nuclear@0 408 {
nuclear@21 409 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 410 if(!anim) return;
nuclear@21 411
nuclear@21 412 anm_set_value(anim->tracks + ANM_TRACK_POS_X, tm, pos.x);
nuclear@21 413 anm_set_value(anim->tracks + ANM_TRACK_POS_Y, tm, pos.y);
nuclear@21 414 anm_set_value(anim->tracks + ANM_TRACK_POS_Z, tm, pos.z);
nuclear@0 415 invalidate_cache(node);
nuclear@0 416 }
nuclear@0 417
nuclear@0 418 vec3_t anm_get_node_position(struct anm_node *node, anm_time_t tm)
nuclear@0 419 {
nuclear@0 420 vec3_t v;
nuclear@21 421 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@21 422 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@21 423
nuclear@21 424 if(!anim0) {
nuclear@21 425 return v3_cons(0, 0, 0);
nuclear@21 426 }
nuclear@21 427
nuclear@21 428 v.x = anm_get_value(anim0->tracks + ANM_TRACK_POS_X, tm);
nuclear@21 429 v.y = anm_get_value(anim0->tracks + ANM_TRACK_POS_Y, tm);
nuclear@21 430 v.z = anm_get_value(anim0->tracks + ANM_TRACK_POS_Z, tm);
nuclear@21 431
nuclear@21 432 if(anim1) {
nuclear@21 433 vec3_t v1;
nuclear@21 434 v1.x = anm_get_value(anim1->tracks + ANM_TRACK_POS_X, tm);
nuclear@21 435 v1.y = anm_get_value(anim1->tracks + ANM_TRACK_POS_Y, tm);
nuclear@21 436 v1.z = anm_get_value(anim1->tracks + ANM_TRACK_POS_Z, tm);
nuclear@21 437
nuclear@21 438 v.x = v.x + (v1.x - v.x) * node->cur_mix;
nuclear@21 439 v.y = v.y + (v1.y - v.y) * node->cur_mix;
nuclear@21 440 v.z = v.z + (v1.z - v.z) * node->cur_mix;
nuclear@21 441 }
nuclear@21 442
nuclear@0 443 return v;
nuclear@0 444 }
nuclear@0 445
nuclear@0 446 void anm_set_rotation(struct anm_node *node, quat_t rot, anm_time_t tm)
nuclear@0 447 {
nuclear@21 448 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 449 if(!anim) return;
nuclear@21 450
nuclear@21 451 anm_set_value(anim->tracks + ANM_TRACK_ROT_X, tm, rot.x);
nuclear@21 452 anm_set_value(anim->tracks + ANM_TRACK_ROT_Y, tm, rot.y);
nuclear@21 453 anm_set_value(anim->tracks + ANM_TRACK_ROT_Z, tm, rot.z);
nuclear@21 454 anm_set_value(anim->tracks + ANM_TRACK_ROT_W, tm, rot.w);
nuclear@0 455 invalidate_cache(node);
nuclear@0 456 }
nuclear@0 457
nuclear@21 458 static quat_t get_node_rotation(struct anm_node *node, anm_time_t tm, struct anm_animation *anim)
nuclear@0 459 {
nuclear@7 460 #ifndef ROT_USE_SLERP
nuclear@7 461 quat_t q;
nuclear@21 462 q.x = anm_get_value(anim->tracks + ANM_TRACK_ROT_X, tm);
nuclear@21 463 q.y = anm_get_value(anim->tracks + ANM_TRACK_ROT_Y, tm);
nuclear@21 464 q.z = anm_get_value(anim->tracks + ANM_TRACK_ROT_Z, tm);
nuclear@21 465 q.w = anm_get_value(anim->tracks + ANM_TRACK_ROT_W, tm);
nuclear@7 466 return q;
nuclear@7 467 #else
nuclear@0 468 int idx0, idx1, last_idx;
nuclear@0 469 anm_time_t tstart, tend;
nuclear@0 470 float t, dt;
nuclear@0 471 struct anm_track *track_x, *track_y, *track_z, *track_w;
nuclear@0 472 quat_t q, q1, q2;
nuclear@0 473
nuclear@21 474 track_x = anim->tracks + ANM_TRACK_ROT_X;
nuclear@21 475 track_y = anim->tracks + ANM_TRACK_ROT_Y;
nuclear@21 476 track_z = anim->tracks + ANM_TRACK_ROT_Z;
nuclear@21 477 track_w = anim->tracks + ANM_TRACK_ROT_W;
nuclear@0 478
nuclear@0 479 if(!track_x->count) {
nuclear@0 480 q.x = track_x->def_val;
nuclear@0 481 q.y = track_y->def_val;
nuclear@0 482 q.z = track_z->def_val;
nuclear@0 483 q.w = track_w->def_val;
nuclear@0 484 return q;
nuclear@0 485 }
nuclear@0 486
nuclear@0 487 last_idx = track_x->count - 1;
nuclear@0 488
nuclear@0 489 tstart = track_x->keys[0].time;
nuclear@0 490 tend = track_x->keys[last_idx].time;
nuclear@6 491
nuclear@6 492 if(tstart == tend) {
nuclear@6 493 q.x = track_x->keys[0].val;
nuclear@6 494 q.y = track_y->keys[0].val;
nuclear@6 495 q.z = track_z->keys[0].val;
nuclear@6 496 q.w = track_w->keys[0].val;
nuclear@6 497 return q;
nuclear@6 498 }
nuclear@6 499
nuclear@0 500 tm = anm_remap_time(track_x, tm, tstart, tend);
nuclear@0 501
nuclear@0 502 idx0 = anm_get_key_interval(track_x, tm);
nuclear@0 503 assert(idx0 >= 0 && idx0 < track_x->count);
nuclear@0 504 idx1 = idx0 + 1;
nuclear@0 505
nuclear@6 506 if(idx0 == last_idx) {
nuclear@6 507 q.x = track_x->keys[idx0].val;
nuclear@6 508 q.y = track_y->keys[idx0].val;
nuclear@6 509 q.z = track_z->keys[idx0].val;
nuclear@6 510 q.w = track_w->keys[idx0].val;
nuclear@6 511 return q;
nuclear@6 512 }
nuclear@6 513
nuclear@0 514 dt = (float)(track_x->keys[idx1].time - track_x->keys[idx0].time);
nuclear@0 515 t = (float)(tm - track_x->keys[idx0].time) / dt;
nuclear@0 516
nuclear@0 517 q1.x = track_x->keys[idx0].val;
nuclear@0 518 q1.y = track_y->keys[idx0].val;
nuclear@0 519 q1.z = track_z->keys[idx0].val;
nuclear@0 520 q1.w = track_w->keys[idx0].val;
nuclear@0 521
nuclear@0 522 q2.x = track_x->keys[idx1].val;
nuclear@0 523 q2.y = track_y->keys[idx1].val;
nuclear@0 524 q2.z = track_z->keys[idx1].val;
nuclear@0 525 q2.w = track_w->keys[idx1].val;
nuclear@0 526
nuclear@9 527 /*q1 = quat_normalize(q1);
nuclear@9 528 q2 = quat_normalize(q2);*/
nuclear@9 529
nuclear@0 530 return quat_slerp(q1, q2, t);
nuclear@7 531 #endif
nuclear@0 532 }
nuclear@0 533
nuclear@21 534 quat_t anm_get_node_rotation(struct anm_node *node, anm_time_t tm)
nuclear@21 535 {
nuclear@21 536 quat_t q;
nuclear@21 537 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@21 538 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@21 539
nuclear@21 540 if(!anim0) {
nuclear@21 541 return quat_identity();
nuclear@21 542 }
nuclear@21 543
nuclear@21 544 q = get_node_rotation(node, tm, anim0);
nuclear@21 545
nuclear@21 546 if(anim1) {
nuclear@21 547 quat_t q1 = get_node_rotation(node, tm, anim1);
nuclear@21 548
nuclear@21 549 q = quat_slerp(q, q1, node->cur_mix);
nuclear@21 550 }
nuclear@21 551 return q;
nuclear@21 552 }
nuclear@21 553
nuclear@0 554 void anm_set_scaling(struct anm_node *node, vec3_t scl, anm_time_t tm)
nuclear@0 555 {
nuclear@21 556 struct anm_animation *anim = anm_get_active_animation(node, 0);
nuclear@21 557 if(!anim) return;
nuclear@21 558
nuclear@21 559 anm_set_value(anim->tracks + ANM_TRACK_SCL_X, tm, scl.x);
nuclear@21 560 anm_set_value(anim->tracks + ANM_TRACK_SCL_Y, tm, scl.y);
nuclear@21 561 anm_set_value(anim->tracks + ANM_TRACK_SCL_Z, tm, scl.z);
nuclear@0 562 invalidate_cache(node);
nuclear@0 563 }
nuclear@0 564
nuclear@0 565 vec3_t anm_get_node_scaling(struct anm_node *node, anm_time_t tm)
nuclear@0 566 {
nuclear@0 567 vec3_t v;
nuclear@21 568 struct anm_animation *anim0 = anm_get_active_animation(node, 0);
nuclear@21 569 struct anm_animation *anim1 = anm_get_active_animation(node, 1);
nuclear@21 570
nuclear@21 571 if(!anim0) {
nuclear@21 572 return v3_cons(1, 1, 1);
nuclear@21 573 }
nuclear@21 574
nuclear@21 575 v.x = anm_get_value(anim0->tracks + ANM_TRACK_SCL_X, tm);
nuclear@21 576 v.y = anm_get_value(anim0->tracks + ANM_TRACK_SCL_Y, tm);
nuclear@21 577 v.z = anm_get_value(anim0->tracks + ANM_TRACK_SCL_Z, tm);
nuclear@21 578
nuclear@21 579 if(anim1) {
nuclear@21 580 vec3_t v1;
nuclear@21 581 v1.x = anm_get_value(anim1->tracks + ANM_TRACK_SCL_X, tm);
nuclear@21 582 v1.y = anm_get_value(anim1->tracks + ANM_TRACK_SCL_Y, tm);
nuclear@21 583 v1.z = anm_get_value(anim1->tracks + ANM_TRACK_SCL_Z, tm);
nuclear@21 584
nuclear@21 585 v.x = v.x + (v1.x - v.x) * node->cur_mix;
nuclear@21 586 v.y = v.y + (v1.y - v.y) * node->cur_mix;
nuclear@21 587 v.z = v.z + (v1.z - v.z) * node->cur_mix;
nuclear@21 588 }
nuclear@21 589
nuclear@0 590 return v;
nuclear@0 591 }
nuclear@0 592
nuclear@0 593
nuclear@0 594 vec3_t anm_get_position(struct anm_node *node, anm_time_t tm)
nuclear@0 595 {
nuclear@0 596 mat4_t xform;
nuclear@0 597 vec3_t pos = {0.0, 0.0, 0.0};
nuclear@0 598
nuclear@0 599 if(!node->parent) {
nuclear@0 600 return anm_get_node_position(node, tm);
nuclear@0 601 }
nuclear@0 602
nuclear@0 603 anm_get_matrix(node, xform, tm);
nuclear@0 604 return v3_transform(pos, xform);
nuclear@0 605 }
nuclear@0 606
nuclear@0 607 quat_t anm_get_rotation(struct anm_node *node, anm_time_t tm)
nuclear@0 608 {
nuclear@0 609 quat_t rot, prot;
nuclear@0 610 rot = anm_get_node_rotation(node, tm);
nuclear@0 611
nuclear@0 612 if(!node->parent) {
nuclear@0 613 return rot;
nuclear@0 614 }
nuclear@0 615
nuclear@0 616 prot = anm_get_rotation(node->parent, tm);
nuclear@0 617 return quat_mul(prot, rot);
nuclear@0 618 }
nuclear@0 619
nuclear@0 620 vec3_t anm_get_scaling(struct anm_node *node, anm_time_t tm)
nuclear@0 621 {
nuclear@0 622 vec3_t s, ps;
nuclear@0 623 s = anm_get_node_scaling(node, tm);
nuclear@0 624
nuclear@0 625 if(!node->parent) {
nuclear@0 626 return s;
nuclear@0 627 }
nuclear@0 628
nuclear@0 629 ps = anm_get_scaling(node->parent, tm);
nuclear@0 630 return v3_mul(s, ps);
nuclear@0 631 }
nuclear@0 632
nuclear@5 633 void anm_get_node_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@5 634 {
nuclear@9 635 int i;
nuclear@9 636 mat4_t rmat;
nuclear@5 637 vec3_t pos, scale;
nuclear@5 638 quat_t rot;
nuclear@5 639
nuclear@5 640 pos = anm_get_node_position(node, tm);
nuclear@5 641 rot = anm_get_node_rotation(node, tm);
nuclear@5 642 scale = anm_get_node_scaling(node, tm);
nuclear@5 643
nuclear@9 644 m4_set_translation(mat, node->pivot.x, node->pivot.y, node->pivot.z);
nuclear@5 645
nuclear@5 646 quat_to_mat4(rmat, rot);
nuclear@9 647 for(i=0; i<3; i++) {
nuclear@9 648 mat[i][0] = rmat[i][0];
nuclear@9 649 mat[i][1] = rmat[i][1];
nuclear@9 650 mat[i][2] = rmat[i][2];
nuclear@9 651 }
nuclear@9 652 /* this loop is equivalent to: m4_mult(mat, mat, rmat); */
nuclear@5 653
nuclear@9 654 mat[0][0] *= scale.x; mat[0][1] *= scale.y; mat[0][2] *= scale.z; mat[0][3] += pos.x;
nuclear@9 655 mat[1][0] *= scale.x; mat[1][1] *= scale.y; mat[1][2] *= scale.z; mat[1][3] += pos.y;
nuclear@9 656 mat[2][0] *= scale.x; mat[2][1] *= scale.y; mat[2][2] *= scale.z; mat[2][3] += pos.z;
nuclear@9 657
nuclear@9 658 m4_translate(mat, -node->pivot.x, -node->pivot.y, -node->pivot.z);
nuclear@9 659
nuclear@9 660 /* that's basically: pivot * rotation * translation * scaling * -pivot */
nuclear@5 661 }
nuclear@5 662
nuclear@5 663 void anm_get_node_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@5 664 {
nuclear@5 665 mat4_t tmp;
nuclear@5 666 anm_get_node_matrix(node, tmp, tm);
nuclear@5 667 m4_inverse(mat, tmp);
nuclear@5 668 }
nuclear@5 669
nuclear@20 670 void anm_eval_node(struct anm_node *node, anm_time_t tm)
nuclear@20 671 {
nuclear@20 672 anm_get_node_matrix(node, node->matrix, tm);
nuclear@20 673 }
nuclear@20 674
nuclear@20 675 void anm_eval(struct anm_node *node, anm_time_t tm)
nuclear@20 676 {
nuclear@20 677 struct anm_node *c;
nuclear@20 678
nuclear@20 679 anm_eval_node(node, tm);
nuclear@20 680
nuclear@20 681 if(node->parent) {
nuclear@20 682 /* due to post-order traversal, the parent matrix is already evaluated */
nuclear@20 683 m4_mult(node->matrix, node->parent->matrix, node->matrix);
nuclear@20 684 }
nuclear@20 685
nuclear@20 686 /* recersively evaluate all children */
nuclear@20 687 c = node->child;
nuclear@20 688 while(c) {
nuclear@20 689 anm_eval(c, tm);
nuclear@20 690 c = c->next;
nuclear@20 691 }
nuclear@20 692 }
nuclear@20 693
nuclear@0 694 void anm_get_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@0 695 {
nuclear@0 696 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@0 697 if(!cache) {
nuclear@0 698 cache = malloc(sizeof *cache);
nuclear@0 699 assert(cache);
nuclear@0 700
nuclear@0 701 pthread_mutex_lock(&node->cache_list_lock);
nuclear@0 702 cache->next = node->cache_list;
nuclear@0 703 node->cache_list = cache;
nuclear@0 704 pthread_mutex_unlock(&node->cache_list_lock);
nuclear@0 705
nuclear@0 706 cache->time = ANM_TIME_INVAL;
nuclear@2 707 cache->inv_time = ANM_TIME_INVAL;
nuclear@0 708 pthread_setspecific(node->cache_key, cache);
nuclear@0 709 }
nuclear@0 710
nuclear@0 711 if(cache->time != tm) {
nuclear@5 712 anm_get_node_matrix(node, cache->matrix, tm);
nuclear@0 713
nuclear@0 714 if(node->parent) {
nuclear@0 715 mat4_t parent_mat;
nuclear@0 716
nuclear@4 717 anm_get_matrix(node->parent, parent_mat, tm);
nuclear@0 718 m4_mult(cache->matrix, parent_mat, cache->matrix);
nuclear@0 719 }
nuclear@0 720 cache->time = tm;
nuclear@0 721 }
nuclear@0 722 m4_copy(mat, cache->matrix);
nuclear@0 723 }
nuclear@0 724
nuclear@0 725 void anm_get_inv_matrix(struct anm_node *node, mat4_t mat, anm_time_t tm)
nuclear@0 726 {
nuclear@0 727 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@0 728 if(!cache) {
nuclear@0 729 cache = malloc(sizeof *cache);
nuclear@0 730 assert(cache);
nuclear@0 731
nuclear@0 732 pthread_mutex_lock(&node->cache_list_lock);
nuclear@0 733 cache->next = node->cache_list;
nuclear@0 734 node->cache_list = cache;
nuclear@0 735 pthread_mutex_unlock(&node->cache_list_lock);
nuclear@0 736
nuclear@0 737 cache->inv_time = ANM_TIME_INVAL;
nuclear@2 738 cache->inv_time = ANM_TIME_INVAL;
nuclear@0 739 pthread_setspecific(node->cache_key, cache);
nuclear@0 740 }
nuclear@0 741
nuclear@0 742 if(cache->inv_time != tm) {
nuclear@0 743 anm_get_matrix(node, mat, tm);
nuclear@0 744 m4_inverse(cache->inv_matrix, mat);
nuclear@0 745 cache->inv_time = tm;
nuclear@0 746 }
nuclear@0 747 m4_copy(mat, cache->inv_matrix);
nuclear@0 748 }
nuclear@0 749
nuclear@0 750 anm_time_t anm_get_start_time(struct anm_node *node)
nuclear@0 751 {
nuclear@21 752 int i, j;
nuclear@0 753 struct anm_node *c;
nuclear@0 754 anm_time_t res = LONG_MAX;
nuclear@0 755
nuclear@21 756 for(j=0; j<2; j++) {
nuclear@21 757 struct anm_animation *anim = anm_get_active_animation(node, j);
nuclear@21 758 if(!anim) break;
nuclear@21 759
nuclear@21 760 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 761 if(anim->tracks[i].count) {
nuclear@21 762 anm_time_t tm = anim->tracks[i].keys[0].time;
nuclear@21 763 if(tm < res) {
nuclear@21 764 res = tm;
nuclear@21 765 }
nuclear@0 766 }
nuclear@0 767 }
nuclear@0 768 }
nuclear@0 769
nuclear@0 770 c = node->child;
nuclear@0 771 while(c) {
nuclear@0 772 anm_time_t tm = anm_get_start_time(c);
nuclear@0 773 if(tm < res) {
nuclear@0 774 res = tm;
nuclear@0 775 }
nuclear@0 776 c = c->next;
nuclear@0 777 }
nuclear@0 778 return res;
nuclear@0 779 }
nuclear@0 780
nuclear@0 781 anm_time_t anm_get_end_time(struct anm_node *node)
nuclear@0 782 {
nuclear@21 783 int i, j;
nuclear@0 784 struct anm_node *c;
nuclear@0 785 anm_time_t res = LONG_MIN;
nuclear@0 786
nuclear@21 787 for(j=0; j<2; j++) {
nuclear@21 788 struct anm_animation *anim = anm_get_active_animation(node, j);
nuclear@21 789 if(!anim) break;
nuclear@21 790
nuclear@21 791 for(i=0; i<ANM_NUM_TRACKS; i++) {
nuclear@21 792 if(anim->tracks[i].count) {
nuclear@21 793 anm_time_t tm = anim->tracks[i].keys[anim->tracks[i].count - 1].time;
nuclear@21 794 if(tm > res) {
nuclear@21 795 res = tm;
nuclear@21 796 }
nuclear@0 797 }
nuclear@0 798 }
nuclear@0 799 }
nuclear@0 800
nuclear@0 801 c = node->child;
nuclear@0 802 while(c) {
nuclear@0 803 anm_time_t tm = anm_get_end_time(c);
nuclear@0 804 if(tm > res) {
nuclear@0 805 res = tm;
nuclear@0 806 }
nuclear@0 807 c = c->next;
nuclear@0 808 }
nuclear@0 809 return res;
nuclear@0 810 }
nuclear@0 811
nuclear@0 812 static void invalidate_cache(struct anm_node *node)
nuclear@0 813 {
nuclear@0 814 struct mat_cache *cache = pthread_getspecific(node->cache_key);
nuclear@0 815 if(cache) {
nuclear@13 816 cache->time = cache->inv_time = ANM_TIME_INVAL;
nuclear@0 817 }
nuclear@0 818 }