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[geda-pcb/pcjc2.git] / src / toporouter.c
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1 /*
2 * COPYRIGHT
3 *
4 * Topological Autorouter for
5 * PCB, interactive printed circuit board design
6 * Copyright (C) 2009 Anthony Blake
7 * Copyright (C) 2009-2011 PCB Contributors (see ChangeLog for details)
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * Contact addresses for email:
24 * Anthony Blake, tonyb33@gmail.com
25 *
26 *
27 *
28 * This is *EXPERIMENTAL* code.
29 *
30 * As the code is experimental, the algorithms and code
31 * are likely to change. Which means it isn't documented
32 * or optimized. If you would like to learn about Topological
33 * Autorouters, the following papers are good starting points:
34 *
35 * This file implements a topological autorouter, and uses techniques from the
36 * following publications:
37 *
38 * Dayan, T. and Dai, W.W.M., "Layer Assignment for a Rubber Band Router" Tech
39 * Report UCSC-CRL-92-50, Univ. of California, Santa Cruz, 1992.
40 *
41 * Dai, W.W.M and Dayan, T. and Staepelaere, D., "Topological Routing in SURF:
42 * Generating a Rubber-Band Sketch" Proc. 28th ACM/IEEE Design Automation
43 * Conference, 1991, pp. 39-44.
44 *
45 * David Staepelaere, Jeffrey Jue, Tal Dayan, Wayne Wei-Ming Dai, "SURF:
46 * Rubber-Band Routing System for Multichip Modules," IEEE Design and Test of
47 * Computers ,vol. 10, no. 4, pp. 18-26, October/December, 1993.
48 *
49 * Dayan, T., "Rubber-band based topological router" PhD Thesis, Univ. of
50 * California, Santa Cruz, 1997.
51 *
52 * David Staepelaere, "Geometric transformations for a rubber-band sketch"
53 * Master's thesis, Univ. of California, Santa Cruz, September 1992.
54 *
55 */
56
57
58 #include "toporouter.h"
59 #include "pcb-printf.h"
60
61 #define BOARD_EDGE_RESOLUTION MIL_TO_COORD (100.)
62 #define VIA_COST_AS_DISTANCE MIL_TO_COORD (100.)
63 #define ROAR_DETOUR_THRESHOLD MIL_TO_COORD (10.)
64
65
66 static void
67 toporouter_edge_init (toporouter_edge_t *edge)
68 {
69 edge->routing = NULL;
70 edge->flags = 0;
71 }
72
73 toporouter_edge_class_t *
74 toporouter_edge_class(void)
75 {
76 static toporouter_edge_class_t *klass = NULL;
77
78 if (klass == NULL) {
79 GtsObjectClassInfo constraint_info = {
80 "toporouter_edge_t",
81 sizeof (toporouter_edge_t),
82 sizeof (toporouter_edge_class_t),
83 (GtsObjectClassInitFunc) NULL,
84 (GtsObjectInitFunc) toporouter_edge_init,
85 (GtsArgSetFunc) NULL,
86 (GtsArgGetFunc) NULL
87 };
88 klass = (toporouter_edge_class_t *)gts_object_class_new (GTS_OBJECT_CLASS (gts_edge_class ()), &constraint_info);
89 }
90
91 return klass;
92 }
93
94 static void
95 toporouter_bbox_init (toporouter_bbox_t *box)
96 {
97 box->data = NULL;
98 box->type = OTHER;
99 box->constraints = NULL;
100 box->cluster = NULL;
101 }
102
103 toporouter_bbox_class_t *
104 toporouter_bbox_class(void)
105 {
106 static toporouter_bbox_class_t *klass = NULL;
107
108 if (klass == NULL) {
109 GtsObjectClassInfo constraint_info = {
110 "toporouter_bbox_t",
111 sizeof (toporouter_bbox_t),
112 sizeof (toporouter_bbox_class_t),
113 (GtsObjectClassInitFunc) NULL,
114 (GtsObjectInitFunc) toporouter_bbox_init,
115 (GtsArgSetFunc) NULL,
116 (GtsArgGetFunc) NULL
117 };
118 klass = (toporouter_bbox_class_t *)gts_object_class_new (GTS_OBJECT_CLASS (gts_bbox_class ()), &constraint_info);
119 }
120
121 return klass;
122 }
123
124 static void
125 toporouter_vertex_class_init (toporouter_vertex_class_t *klass)
126 {
127
128 }
129
130 static void
131 toporouter_vertex_init (toporouter_vertex_t *vertex)
132 {
133 vertex->bbox = NULL;
134 vertex->parent = NULL;
135 vertex->child = NULL;
136 vertex->flags = 0;
137 vertex->routingedge = NULL;
138 vertex->arc = NULL;
139 vertex->oproute = NULL;
140 vertex->route = NULL;
141
142 vertex->gcost = 0.;
143 vertex->hcost = 0.;
144 vertex->gn = 0;
145 }
146
147 toporouter_vertex_class_t *
148 toporouter_vertex_class(void)
149 {
150 static toporouter_vertex_class_t *klass = NULL;
151
152 if (klass == NULL) {
153 GtsObjectClassInfo constraint_info = {
154 "toporouter_vertex_t",
155 sizeof (toporouter_vertex_t),
156 sizeof (toporouter_vertex_class_t),
157 (GtsObjectClassInitFunc) toporouter_vertex_class_init,
158 (GtsObjectInitFunc) toporouter_vertex_init,
159 (GtsArgSetFunc) NULL,
160 (GtsArgGetFunc) NULL
161 };
162 klass = (toporouter_vertex_class_t *)gts_object_class_new (GTS_OBJECT_CLASS (gts_vertex_class ()), &constraint_info);
163 }
164
165 return klass;
166 }
167
168 static void
169 toporouter_constraint_class_init (toporouter_constraint_class_t *klass)
170 {
171
172 }
173
174 static void
175 toporouter_constraint_init (toporouter_constraint_t *constraint)
176 {
177 constraint->box = NULL;
178 constraint->routing = NULL;
179 }
180
181 toporouter_constraint_class_t *
182 toporouter_constraint_class(void)
183 {
184 static toporouter_constraint_class_t *klass = NULL;
185
186 if (klass == NULL) {
187 GtsObjectClassInfo constraint_info = {
188 "toporouter_constraint_t",
189 sizeof (toporouter_constraint_t),
190 sizeof (toporouter_constraint_class_t),
191 (GtsObjectClassInitFunc) toporouter_constraint_class_init,
192 (GtsObjectInitFunc) toporouter_constraint_init,
193 (GtsArgSetFunc) NULL,
194 (GtsArgGetFunc) NULL
195 };
196 klass = (toporouter_constraint_class_t *)gts_object_class_new (GTS_OBJECT_CLASS (gts_constraint_class ()), &constraint_info);
197 }
198
199 return klass;
200 }
201
202 static void
203 toporouter_arc_init (toporouter_arc_t *arc)
204 {
205 arc->x0 = -1.;
206 arc->y0 = -1.;
207 arc->x1 = -1.;
208 arc->y1 = -1.;
209 arc->centre = NULL;
210 arc->v = NULL;
211 arc->v1 = NULL;
212 arc->v2 = NULL;
213 arc->r = -1.;
214 arc->dir = 31337;
215 arc->clearance = NULL;
216 arc->oproute = NULL;
217 }
218
219 toporouter_arc_class_t *
220 toporouter_arc_class(void)
221 {
222 static toporouter_arc_class_t *klass = NULL;
223
224 if (klass == NULL) {
225 GtsObjectClassInfo constraint_info = {
226 "toporouter_arc_t",
227 sizeof (toporouter_arc_t),
228 sizeof (toporouter_arc_class_t),
229 (GtsObjectClassInitFunc) NULL,
230 (GtsObjectInitFunc) toporouter_arc_init,
231 (GtsArgSetFunc) NULL,
232 (GtsArgGetFunc) NULL
233 };
234 klass = (toporouter_arc_class_t *)gts_object_class_new (GTS_OBJECT_CLASS (gts_constraint_class ()), &constraint_info);
235 }
236
237 return klass;
238 }
239
240 #define MARGIN 10.0f
241
242 drawing_context_t *
243 toporouter_output_init(int w, int h, char *filename)
244 {
245 drawing_context_t *dc;
246
247 dc = (drawing_context_t *)malloc(sizeof(drawing_context_t));
248
249 dc->iw = w;
250 dc->ih = h;
251 dc->filename = filename;
252
253 /* Calculate scaling to maintain aspect ratio */
254 if(PCB->MaxWidth > PCB->MaxHeight) {
255 /* Scale board width to match image width minus 2xMARGIN */
256 dc->s = ((double)dc->iw - (2 * MARGIN)) / (double)PCB->MaxWidth;
257 dc->ih = (double)PCB->MaxHeight * dc->s + (2 * MARGIN);
258 }else{
259 /* Scale board height to match image height minus 2xMARGIN */
260 dc->s = ((double)dc->ih - (2 * MARGIN)) / (double)PCB->MaxHeight;
261 dc->iw = (double)PCB->MaxWidth * dc->s + (2 * MARGIN);
262 }
263
264 #if TOPO_OUTPUT_ENABLED
265 dc->surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, dc->iw, dc->ih);
266 dc->cr = cairo_create (dc->surface);
267
268 cairo_rectangle (dc->cr, 0, 0, dc->iw, dc->ih);
269 cairo_set_source_rgb (dc->cr, 0, 0, 0);
270 cairo_fill (dc->cr);
271
272 #endif
273
274 return dc;
275 }
276
277 void
278 toporouter_output_close(drawing_context_t *dc)
279 {
280 #if TOPO_OUTPUT_ENABLED
281 cairo_surface_write_to_png (dc->surface, dc->filename);
282 cairo_destroy (dc->cr);
283 cairo_surface_destroy (dc->surface);
284 #endif
285 }
286
287 gdouble
288 lookup_keepaway(char *name)
289 {
290 if(name)
291 STYLE_LOOP(PCB);
292 {
293 // if(!strcmp(style->Name, name)) return style->Keepaway + 1.;
294 if(!strcmp(style->Name, name)) return style->Keepaway;
295 }
296 END_LOOP;
297 // return Settings.Keepaway + 1.;
298 return Settings.Keepaway ;
299 }
300
301 gdouble
302 lookup_thickness(char *name)
303 {
304 if(name)
305 STYLE_LOOP(PCB);
306 {
307 if(!strcmp(style->Name, name)) return style->Thick;
308 }
309 END_LOOP;
310 return Settings.LineThickness;
311 }
312
313 static inline gdouble
314 cluster_keepaway(toporouter_cluster_t *cluster)
315 {
316 if(cluster) return lookup_keepaway(cluster->netlist->style);
317 return lookup_keepaway(NULL);
318 }
319
320 static inline gdouble
321 cluster_thickness(toporouter_cluster_t *cluster)
322 {
323 if(cluster) return lookup_thickness(cluster->netlist->style);
324 return lookup_thickness(NULL);
325 }
326
327 gint
328 toporouter_draw_vertex(gpointer item, gpointer data)
329 {
330 #if TOPO_OUTPUT_ENABLED
331 drawing_context_t *dc = (drawing_context_t *) data;
332 toporouter_vertex_t *tv;
333 PinType *pin;
334 PadType *pad;
335 gdouble blue;
336
337 if(TOPOROUTER_IS_VERTEX((GtsObject*)item)) {
338 tv = TOPOROUTER_VERTEX((GtsObject*)item);
339
340 if(tv->flags & VERTEX_FLAG_RED) {
341 cairo_set_source_rgba(dc->cr, 1., 0., 0., 0.8f);
342 cairo_arc(dc->cr,
343 tv->v.p.x * dc->s + MARGIN,
344 tv->v.p.y * dc->s + MARGIN,
345 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
346 cairo_fill(dc->cr);
347
348 }else if(tv->flags & VERTEX_FLAG_GREEN) {
349 cairo_set_source_rgba(dc->cr, 0., 1., 0., 0.8f);
350 cairo_arc(dc->cr,
351 tv->v.p.x * dc->s + MARGIN,
352 tv->v.p.y * dc->s + MARGIN,
353 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
354 cairo_fill(dc->cr);
355
356 }else if(tv->flags & VERTEX_FLAG_BLUE) {
357 cairo_set_source_rgba(dc->cr, 0., 0., 1., 0.8f);
358 cairo_arc(dc->cr,
359 tv->v.p.x * dc->s + MARGIN,
360 tv->v.p.y * dc->s + MARGIN,
361 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
362 cairo_fill(dc->cr);
363
364
365 }
366 //printf("tv->type = %d\n", tv->type);
367 if(!dc->mode) {
368 if(tv->bbox) {
369 pin = (PinType*) tv->bbox->data;
370 pad = (PadType*) tv->bbox->data;
371
372 blue = 0.0f;
373 switch(tv->bbox->type) {
374 case PIN:
375 cairo_set_source_rgba(dc->cr, 1.0f, 0., 0.0f, 0.2f);
376 cairo_arc(dc->cr,
377 tv->v.p.x * dc->s + MARGIN,
378 tv->v.p.y * dc->s + MARGIN,
379 (((gdouble)pin->Thickness / 2.0f) + (gdouble)lookup_keepaway(pin->Name) ) * dc->s, 0, 2 * M_PI);
380 cairo_fill(dc->cr);
381
382 cairo_set_source_rgba(dc->cr, 1.0f, 0., 0., 0.4f);
383 cairo_arc(dc->cr,
384 tv->v.p.x * dc->s + MARGIN,
385 tv->v.p.y * dc->s + MARGIN,
386 (gdouble)(pin->Thickness) / 2.0f * dc->s,
387 0, 2 * M_PI);
388 cairo_fill(dc->cr);
389
390 break;
391 case VIA:
392 cairo_set_source_rgba(dc->cr, 0.0f, 0., 1., 0.2f);
393 cairo_arc(dc->cr,
394 tv->v.p.x * dc->s + MARGIN,
395 tv->v.p.y * dc->s + MARGIN,
396 (((gdouble)pin->Thickness / 2.0f) + (gdouble)lookup_keepaway(pin->Name) ) * dc->s, 0, 2 * M_PI);
397 cairo_fill(dc->cr);
398
399 cairo_set_source_rgba(dc->cr, 0.0f, 0., 1., 0.4f);
400 cairo_arc(dc->cr,
401 tv->v.p.x * dc->s + MARGIN,
402 tv->v.p.y * dc->s + MARGIN,
403 (gdouble)(pin->Thickness) / 2.0f * dc->s,
404 0, 2 * M_PI);
405 cairo_fill(dc->cr);
406
407 break;
408 case PAD:
409 cairo_set_source_rgba(dc->cr, 0.0f, 1., 0., 0.5f);
410 cairo_arc(dc->cr,
411 tv->v.p.x * dc->s + MARGIN,
412 tv->v.p.y * dc->s + MARGIN,
413 MIL_TO_COORD (4.) * dc->s, 0, 2 * M_PI);
414 cairo_fill(dc->cr);
415
416 break;
417 default:
418 break;
419 }
420 }
421 }else{
422 if(tv->flags & VERTEX_FLAG_BLUE) {
423 cairo_set_source_rgba(dc->cr, 0., 0., 1., 0.8f);
424 cairo_arc(dc->cr,
425 tv->v.p.x * dc->s + MARGIN,
426 tv->v.p.y * dc->s + MARGIN,
427 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
428 cairo_fill(dc->cr);
429 }else if(tv->flags & VERTEX_FLAG_RED) {
430 cairo_set_source_rgba(dc->cr, 1., 0., 0., 0.8f);
431 cairo_arc(dc->cr,
432 tv->v.p.x * dc->s + MARGIN,
433 tv->v.p.y * dc->s + MARGIN,
434 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
435 cairo_fill(dc->cr);
436
437 }else if(tv->flags & VERTEX_FLAG_GREEN) {
438 cairo_set_source_rgba(dc->cr, 0., 1., 0., 0.8f);
439 cairo_arc(dc->cr,
440 tv->v.p.x * dc->s + MARGIN,
441 tv->v.p.y * dc->s + MARGIN,
442 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
443 cairo_fill(dc->cr);
444 }
445
446 }
447 }else{
448 fprintf(stderr, "Unknown data passed to toporouter_draw_vertex, aborting foreach\n");
449 return -1;
450 }
451 return 0;
452 #else
453 return -1;
454 #endif
455 }
456
457 gint
458 toporouter_draw_edge(gpointer item, gpointer data)
459 {
460 #if TOPO_OUTPUT_ENABLED
461 drawing_context_t *dc = (drawing_context_t *) data;
462 toporouter_edge_t *te;
463 toporouter_constraint_t *tc;
464
465 if(TOPOROUTER_IS_EDGE((GtsObject*)item)) {
466 te = TOPOROUTER_EDGE((GtsObject*)item);
467 cairo_set_source_rgba(dc->cr, 1.0f, 1.0f, 1.0f, 0.5f);
468 cairo_move_to(dc->cr,
469 te->e.segment.v1->p.x * dc->s + MARGIN,
470 te->e.segment.v1->p.y * dc->s + MARGIN);
471 cairo_line_to(dc->cr,
472 te->e.segment.v2->p.x * dc->s + MARGIN,
473 te->e.segment.v2->p.y * dc->s + MARGIN);
474 cairo_stroke(dc->cr);
475 }else if(TOPOROUTER_IS_CONSTRAINT((GtsObject*)item)) {
476 tc = TOPOROUTER_CONSTRAINT((GtsObject*)item);
477 if(tc->box) {
478 switch(tc->box->type) {
479 case BOARD:
480 cairo_set_source_rgba(dc->cr, 1.0f, 0.0f, 1.0f, 0.9f);
481 cairo_move_to(dc->cr,
482 tc->c.edge.segment.v1->p.x * dc->s + MARGIN,
483 tc->c.edge.segment.v1->p.y * dc->s + MARGIN);
484 cairo_line_to(dc->cr,
485 tc->c.edge.segment.v2->p.x * dc->s + MARGIN,
486 tc->c.edge.segment.v2->p.y * dc->s + MARGIN);
487 cairo_stroke(dc->cr);
488 break;
489 case PIN:
490 case PAD:
491 cairo_set_source_rgba(dc->cr, 1.0f, 0.0f, 0.0f, 0.9f);
492 cairo_move_to(dc->cr,
493 tc->c.edge.segment.v1->p.x * dc->s + MARGIN,
494 tc->c.edge.segment.v1->p.y * dc->s + MARGIN);
495 cairo_line_to(dc->cr,
496 tc->c.edge.segment.v2->p.x * dc->s + MARGIN,
497 tc->c.edge.segment.v2->p.y * dc->s + MARGIN);
498 cairo_stroke(dc->cr);
499 break;
500 case LINE:
501 cairo_set_source_rgba(dc->cr, 0.0f, 1.0f, 0.0f, 0.9f);
502 cairo_move_to(dc->cr,
503 tc->c.edge.segment.v1->p.x * dc->s + MARGIN,
504 tc->c.edge.segment.v1->p.y * dc->s + MARGIN);
505 cairo_line_to(dc->cr,
506 tc->c.edge.segment.v2->p.x * dc->s + MARGIN,
507 tc->c.edge.segment.v2->p.y * dc->s + MARGIN);
508 cairo_stroke(dc->cr);
509 break;
510
511 default:
512 cairo_set_source_rgba(dc->cr, 1.0f, 1.0f, 0.0f, 0.9f);
513 cairo_move_to(dc->cr,
514 tc->c.edge.segment.v1->p.x * dc->s + MARGIN,
515 tc->c.edge.segment.v1->p.y * dc->s + MARGIN);
516 cairo_line_to(dc->cr,
517 tc->c.edge.segment.v2->p.x * dc->s + MARGIN,
518 tc->c.edge.segment.v2->p.y * dc->s + MARGIN);
519 cairo_stroke(dc->cr);
520 break;
521 }
522 }else{
523 printf("CONSTRAINT without box\n");
524
525 }
526 }else{
527 fprintf(stderr, "Unknown data passed to toporouter_draw_edge, aborting foreach\n");
528 return -1;
529 }
530
531 return 0;
532 #else
533 return -1;
534 #endif
535 }
536
537 //#define vertex_bbox(v) (v->bbox)
538 ///*
539 toporouter_bbox_t *
540 vertex_bbox(toporouter_vertex_t *v)
541 {
542 return v ? v->bbox : NULL;
543 }
544 //*/
545 char *
546 vertex_netlist(toporouter_vertex_t *v)
547 {
548 toporouter_bbox_t *box = vertex_bbox(v);
549
550 if(box && box->cluster) return box->cluster->netlist->netlist;
551
552 return NULL;
553 }
554
555 char *
556 constraint_netlist(toporouter_constraint_t *c)
557 {
558 toporouter_bbox_t *box = c->box;
559
560 if(box && box->cluster) return box->cluster->netlist->netlist;
561
562 return NULL;
563 }
564
565 static inline guint
566 epsilon_equals(gdouble a, gdouble b)
567 {
568 if(a > b - EPSILON && a < b + EPSILON) return 1;
569 return 0;
570 }
571
572 void
573 print_bbox(toporouter_bbox_t *box)
574 {
575 printf("[BBOX ");
576 switch(box->type) {
577 case PAD:
578 printf("PAD "); break;
579 case PIN:
580 printf("PIN "); break;
581 case VIA:
582 printf("VIA "); break;
583 case LINE:
584 printf("LINE "); break;
585 case BOARD:
586 printf("BOARD "); break;
587 case POLYGON:
588 printf("POLYGON "); break;
589 default:
590 printf("UNKNOWN "); break;
591 }
592
593 if(box->point)
594 printf("P: %f,%f,%f ", vx(box->point), vy(box->point), vz(box->point));
595 else
596 printf("P: NONE ");
597
598 printf("LAYER: %d ", box->layer);
599 printf("CLUSTER: %d]\n", box->cluster ? box->cluster->c : -1);
600
601 }
602
603 void
604 print_vertex(toporouter_vertex_t *v)
605 {
606 if(v)
607 printf("[V %f,%f,%f ", vx(v), vy(v), vz(v));
608 else
609 printf("[V (null) ");
610
611 printf("%s ", vertex_netlist(v));
612 if(v->route && v->route->netlist)
613 printf("%s ", v->route->netlist->netlist);
614
615 if(v->routingedge) {
616 guint n = g_list_length(edge_routing(v->routingedge));
617 guint pos = g_list_index(edge_routing(v->routingedge), v);
618
619 if(TOPOROUTER_IS_CONSTRAINT(v->routingedge))
620 printf("[CONST ");
621 else
622 printf("[EDGE ");
623
624 printf("%d/%d] ", pos, n);
625
626 }
627
628
629 if(v->flags & VERTEX_FLAG_TEMP) printf("TEMP ");
630 if(v->flags & VERTEX_FLAG_ROUTE) printf("ROUTE ");
631 if(v->flags & VERTEX_FLAG_SPECCUT) printf("SPECCUT ");
632 if(v->flags & VERTEX_FLAG_FAKE) printf("FAKE ");
633
634 printf("]\n");
635
636 }
637
638 gdouble
639 vertex_net_thickness(toporouter_vertex_t *v)
640 {
641 toporouter_bbox_t *box = vertex_bbox(v);
642
643 if(!box) {
644
645 while(v && (v->flags & VERTEX_FLAG_TEMP || v->flags & VERTEX_FLAG_ROUTE)) {
646 v = v->parent;
647 }
648
649 box = vertex_bbox(v);
650
651 }else{
652 if(box->type == PIN || box->type == VIA) {
653 PinType *pin = (PinType *)box->data;
654 if(TEST_FLAG(SQUAREFLAG, pin) || TEST_FLAG(OCTAGONFLAG, pin)) {
655 return 0.;
656 }
657 // return ((PinType *)box->data)->Thickness + 1.;
658 return ((PinType *)box->data)->Thickness;
659 }else if(box->type == PAD) {
660 PadType *pad = (PadType *)box->data;
661 if(pad->Point1.X == pad->Point2.X && pad->Point1.Y == pad->Point2.Y && !TEST_FLAG(SQUAREFLAG, pad)) {
662 return pad->Thickness;
663 }
664 return 0.;
665 }else if(box->type == BOARD) {
666 return 0.;
667 }else if(box->type == LINE) {
668 LineType *line = (LineType *) box->data;
669 return line->Thickness;
670 }else if(box->type == POLYGON) {
671 return 0.;
672 }
673
674 printf("Unrecognized type in thickness lookup..\n");
675 }
676
677 // if(!box || !box->cluster) return Settings.LineThickness + 1.;
678 if(!box || !box->cluster) return Settings.LineThickness;
679
680 return cluster_thickness(box->cluster);
681 }
682
683 gdouble
684 vertex_net_keepaway(toporouter_vertex_t *v)
685 {
686 toporouter_bbox_t *box = vertex_bbox(v);
687 if(!box) {
688
689 while(v && (v->flags & VERTEX_FLAG_TEMP || v->flags & VERTEX_FLAG_ROUTE)) {
690 v = v->parent;
691 }
692 box = vertex_bbox(v);
693 }
694 else{
695 // if(box->type == PIN || box->type == VIA)
696 // return ((PinType *)box->data)->Clearance;
697 // else if(box->type == PAD)
698 // return ((PadType *)box->data)->Clearance;
699
700 }
701
702 // if(!box || !box->cluster) return Settings.Keepaway + 1.;
703 if(!box || !box->cluster) return Settings.Keepaway;
704 return cluster_keepaway(box->cluster);
705 }
706
707 /* fills in x and y with coordinates of point from a towards b of distance d */
708 static void
709 point_from_point_to_point (toporouter_vertex_t *a,
710 toporouter_vertex_t *b,
711 double d,
712 double *x, double *y)
713 {
714 double theta = atan2 (vy(b) - vy(a), vx(b) - vx(a));
715
716 *x = vx(a) + d * cos (theta);
717 *y = vy(a) + d * sin (theta);
718 }
719
720 static inline gint
721 coord_wind(gdouble ax, gdouble ay, gdouble bx, gdouble by, gdouble cx, gdouble cy)
722 {
723 gdouble rval, dx1, dx2, dy1, dy2;
724 dx1 = bx - ax; dy1 = by - ay;
725 dx2 = cx - bx; dy2 = cy - by;
726 rval = (dx1*dy2)-(dy1*dx2);
727 return (rval > EPSILON) ? 1 : ((rval < -EPSILON) ? -1 : 0);
728 }
729
730 /* wind_v:
731 * returns 1,0,-1 for counterclockwise, collinear or clockwise, respectively.
732 */
733 int
734 point_wind(GtsPoint *a, GtsPoint *b, GtsPoint *c)
735 {
736 gdouble rval, dx1, dx2, dy1, dy2;
737 dx1 = b->x - a->x; dy1 = b->y - a->y;
738 dx2 = c->x - b->x; dy2 = c->y - b->y;
739 rval = (dx1*dy2)-(dy1*dx2);
740 return (rval > EPSILON) ? 1 : ((rval < -EPSILON) ? -1 : 0);
741 }
742
743 static inline int
744 vertex_wind(GtsVertex *a, GtsVertex *b, GtsVertex *c)
745 {
746 return point_wind(GTS_POINT(a), GTS_POINT(b), GTS_POINT(c));
747 }
748
749 static inline int
750 tvertex_wind(toporouter_vertex_t *a, toporouter_vertex_t *b, toporouter_vertex_t *c)
751 {
752 return point_wind(GTS_POINT(a), GTS_POINT(b), GTS_POINT(c));
753 }
754
755 /* moves vertex v d units in the direction of vertex p */
756 static void
757 coord_move_towards_coord_values (double ax, double ay,
758 double px, double py,
759 double d,
760 double *x, double *y)
761 {
762 double theta = atan2 (py - ay, px - ax);
763
764 *x = ax + d * cos (theta);
765 *y = ay + d * sin (theta);
766 }
767
768 /* moves vertex v d units in the direction of vertex p */
769 static void
770 vertex_move_towards_vertex_values (GtsVertex *v,
771 GtsVertex *p,
772 double d,
773 double *x, double *y)
774 {
775 double theta = atan2 (GTS_POINT(p)->y - GTS_POINT(v)->y,
776 GTS_POINT(p)->x - GTS_POINT(v)->x);
777
778 *x = GTS_POINT(v)->x + d * cos (theta);
779 *y = GTS_POINT(v)->y + d * sin (theta);
780 }
781
782 #define tv_on_layer(v,l) (l == TOPOROUTER_BBOX(TOPOROUTER_VERTEX(v)->boxes->data)->layer)
783
784 static inline gdouble
785 min_spacing(toporouter_vertex_t *v1, toporouter_vertex_t *v2)
786 {
787
788 gdouble v1halfthick, v2halfthick, v1keepaway, v2keepaway, ms;
789 // toporouter_edge_t *e = v1->routingedge;
790
791 v1halfthick = vertex_net_thickness(TOPOROUTER_VERTEX(v1)) / 2.;
792 v2halfthick = vertex_net_thickness(TOPOROUTER_VERTEX(v2)) / 2.;
793
794 v1keepaway = vertex_net_keepaway(TOPOROUTER_VERTEX(v1));
795 v2keepaway = vertex_net_keepaway(TOPOROUTER_VERTEX(v2));
796
797 ms = v1halfthick + v2halfthick + MAX(v1keepaway, v2keepaway);
798
799 #ifdef SPACING_DEBUG
800 printf("v1halfthick = %f v2halfthick = %f v1keepaway = %f v2keepaway = %f ms = %f\n",
801 v1halfthick, v2halfthick, v1keepaway, v2keepaway, ms);
802 #endif
803
804 return ms;
805 }
806
807 // v1 is a vertex in the CDT, and v2 is a net... other way around?
808 static inline gdouble
809 min_vertex_net_spacing(toporouter_vertex_t *v1, toporouter_vertex_t *v2)
810 {
811
812 gdouble v1halfthick, v2halfthick, v1keepaway, v2keepaway, ms;
813
814 v1halfthick = vertex_net_thickness(TOPOROUTER_VERTEX(v1)) / 2.;
815 v2halfthick = cluster_thickness(vertex_bbox(v2)->cluster) / 2.;
816
817 v1keepaway = vertex_net_keepaway(TOPOROUTER_VERTEX(v1));
818 v2keepaway = cluster_keepaway(vertex_bbox(v2)->cluster);
819
820 ms = v1halfthick + v2halfthick + MAX(v1keepaway, v2keepaway);
821
822 return ms;
823 }
824
825 static inline gdouble
826 min_oproute_vertex_spacing(toporouter_oproute_t *oproute, toporouter_vertex_t *v2)
827 {
828
829 gdouble v1halfthick, v2halfthick, v1keepaway, v2keepaway, ms;
830
831 v1halfthick = lookup_thickness(oproute->style) / 2.;
832 v2halfthick = vertex_net_thickness(v2) / 2.;
833
834 v1keepaway = lookup_keepaway(oproute->style);
835 v2keepaway = vertex_net_keepaway(v2);
836
837 ms = v1halfthick + v2halfthick + MAX(v1keepaway, v2keepaway);
838
839 return ms;
840 }
841
842 gdouble
843 min_oproute_net_spacing(toporouter_oproute_t *oproute, toporouter_vertex_t *v2)
844 {
845
846 gdouble v1halfthick, v2halfthick, v1keepaway, v2keepaway, ms;
847
848 v1halfthick = lookup_thickness(oproute->style) / 2.;
849 v2halfthick = cluster_thickness(v2->route->src) / 2.;
850
851 v1keepaway = lookup_keepaway(oproute->style);
852 v2keepaway = cluster_keepaway(v2->route->src);
853
854 ms = v1halfthick + v2halfthick + MAX(v1keepaway, v2keepaway);
855
856 return ms;
857 }
858
859 gdouble
860 min_net_net_spacing(toporouter_vertex_t *v1, toporouter_vertex_t *v2)
861 {
862
863 gdouble v1halfthick, v2halfthick, v1keepaway, v2keepaway, ms;
864
865 v1halfthick = cluster_thickness(v1->route->src) / 2.;
866 v2halfthick = cluster_thickness(v2->route->src) / 2.;
867
868 v1keepaway = cluster_keepaway(v1->route->src);
869 v2keepaway = cluster_keepaway(v2->route->src);
870
871 ms = v1halfthick + v2halfthick + MAX(v1keepaway, v2keepaway);
872
873 return ms;
874 }
875
876 void
877 toporouter_draw_cluster(toporouter_t *r, drawing_context_t *dc, toporouter_cluster_t *cluster, gdouble red, gdouble green, gdouble blue, guint layer)
878 {
879 #if TOPO_OUTPUT_ENABLED
880 //GList *i = cluster->i;
881
882 //while(i) {
883 // toporouter_bbox_t *box = TOPOROUTER_BBOX(i->data);
884
885 // if(box->point && vz(box->point) == layer) {
886 // cairo_set_source_rgba(dc->cr, red, green, blue, 0.8f);
887 // cairo_arc(dc->cr, vx(box->point) * dc->s + MARGIN, vy(box->point) * dc->s + MARGIN, MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
888 // cairo_fill(dc->cr);
889 // }
890
891 // i = i->next;
892 //}
893 #endif
894 }
895
896 void
897 toporouter_draw_surface(toporouter_t *r, GtsSurface *s, char *filename, int w, int h, int mode, GList *datas, int layer, GList *candidatepoints)
898 {
899 #if TOPO_OUTPUT_ENABLED
900 drawing_context_t *dc;
901 GList *i;
902 toporouter_vertex_t *tv, *tv2 = NULL;
903
904 dc = toporouter_output_init(w, h, filename);
905 dc->mode = mode;
906 dc->data = NULL;
907
908 gts_surface_foreach_edge(s, toporouter_draw_edge, dc);
909 gts_surface_foreach_vertex(s, toporouter_draw_vertex, dc);
910
911 i = r->routednets;
912 while(i) {
913 GList *j = TOPOROUTER_ROUTE(i->data)->path;
914 tv2 = NULL;
915 while(j) {
916 tv = TOPOROUTER_VERTEX(j->data);
917 if(GTS_POINT(tv)->z == layer) {
918 if(tv && tv2) {
919 cairo_set_source_rgba(dc->cr, 0.0f, 1.0f, 0.0f, 0.8f);
920 cairo_move_to(dc->cr,
921 GTS_POINT(tv)->x * dc->s + MARGIN,
922 GTS_POINT(tv)->y * dc->s + MARGIN);
923 cairo_line_to(dc->cr,
924 GTS_POINT(tv2)->x * dc->s + MARGIN,
925 GTS_POINT(tv2)->y * dc->s + MARGIN);
926 cairo_stroke(dc->cr);
927 }
928
929 if(tv->flags & VERTEX_FLAG_RED) {
930 cairo_set_source_rgba(dc->cr, 1., 0., 0., 0.8f);
931 cairo_arc(dc->cr,
932 tv->v.p.x * dc->s + MARGIN,
933 tv->v.p.y * dc->s + MARGIN,
934 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
935 cairo_fill(dc->cr);
936
937 }else if(tv->flags & VERTEX_FLAG_GREEN) {
938 cairo_set_source_rgba(dc->cr, 0., 1., 0., 0.8f);
939 cairo_arc(dc->cr,
940 tv->v.p.x * dc->s + MARGIN,
941 tv->v.p.y * dc->s + MARGIN,
942 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
943 cairo_fill(dc->cr);
944
945 }else if(tv->flags & VERTEX_FLAG_BLUE) {
946 cairo_set_source_rgba(dc->cr, 0., 0., 1., 0.8f);
947 cairo_arc(dc->cr,
948 tv->v.p.x * dc->s + MARGIN,
949 tv->v.p.y * dc->s + MARGIN,
950 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
951 cairo_fill(dc->cr);
952
953 }
954 else {
955
956 cairo_set_source_rgba(dc->cr, 1., 1., 1., 0.8f);
957 cairo_arc(dc->cr,
958 tv->v.p.x * dc->s + MARGIN,
959 tv->v.p.y * dc->s + MARGIN,
960 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
961 cairo_fill(dc->cr);
962
963
964 }
965
966 if(tv->routingedge && !TOPOROUTER_IS_CONSTRAINT(tv->routingedge)) {
967 gdouble tempx, tempy, nms, pms;
968 GList *i = g_list_find(edge_routing(tv->routingedge), tv);
969 toporouter_vertex_t *nextv, *prevv;
970
971 nextv = edge_routing_next(tv->routingedge,i);
972 prevv = edge_routing_prev(tv->routingedge,i);
973
974 nms = min_spacing(tv,nextv);
975 pms = min_spacing(tv,prevv);
976
977 g_assert(finite(nms)); g_assert(finite(pms));
978
979 point_from_point_to_point(tv, nextv, nms, &tempx, &tempy);
980
981 cairo_set_source_rgba(dc->cr, 0.0f, 1.0f, 1.0f, 0.8f);
982 cairo_move_to(dc->cr, vx(tv) * dc->s + MARGIN, vy(tv) * dc->s + MARGIN);
983 cairo_line_to(dc->cr, tempx * dc->s + MARGIN, tempy * dc->s + MARGIN);
984 cairo_stroke(dc->cr);
985
986 point_from_point_to_point(tv, prevv, pms, &tempx, &tempy);
987
988 cairo_move_to(dc->cr, vx(tv) * dc->s + MARGIN, vy(tv) * dc->s + MARGIN);
989 cairo_line_to(dc->cr, tempx * dc->s + MARGIN, tempy * dc->s + MARGIN);
990 cairo_stroke(dc->cr);
991
992
993
994
995 }
996
997
998 }
999 tv2 = tv;
1000 j = j->next;
1001 }
1002 i = i->next;
1003 }
1004
1005 while(datas) {
1006 toporouter_route_t *routedata = (toporouter_route_t *) datas->data;
1007
1008 GList *i;//, *k;
1009
1010 toporouter_draw_cluster(r, dc, routedata->src, 1., 0., 0., layer);
1011 toporouter_draw_cluster(r, dc, routedata->dest, 0., 0., 1., layer);
1012
1013 tv2 = NULL;
1014 i = routedata->path;
1015 while(i) {
1016 tv = TOPOROUTER_VERTEX(i->data);
1017 if(GTS_POINT(tv)->z == layer) {
1018 if(tv && tv2) {
1019 cairo_set_source_rgba(dc->cr, 0.0f, 1.0f, 0.0f, 0.8f);
1020 cairo_move_to(dc->cr,
1021 GTS_POINT(tv)->x * dc->s + MARGIN,
1022 GTS_POINT(tv)->y * dc->s + MARGIN);
1023 cairo_line_to(dc->cr,
1024 GTS_POINT(tv2)->x * dc->s + MARGIN,
1025 GTS_POINT(tv2)->y * dc->s + MARGIN);
1026 cairo_stroke(dc->cr);
1027 }
1028 }
1029 tv2 = tv;
1030 i = i->next;
1031 }
1032
1033
1034 if(routedata->alltemppoints) {
1035 GList *i, *j;
1036 i = j = g_hash_table_get_keys (routedata->alltemppoints);
1037 while(i) {
1038 toporouter_vertex_t *tv = TOPOROUTER_VERTEX(i->data);
1039
1040 if(GTS_POINT(tv)->z != layer) {
1041 i = i->next;
1042 continue;
1043 }
1044 if(tv->flags & VERTEX_FLAG_BLUE) {
1045 cairo_set_source_rgba(dc->cr, 0., 0., 1., 0.8f);
1046 cairo_arc(dc->cr,
1047 tv->v.p.x * dc->s + MARGIN,
1048 tv->v.p.y * dc->s + MARGIN,
1049 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
1050 cairo_fill(dc->cr);
1051 }else if(tv->flags & VERTEX_FLAG_RED) {
1052 cairo_set_source_rgba(dc->cr, 1., 0., 0., 0.8f);
1053 cairo_arc(dc->cr,
1054 tv->v.p.x * dc->s + MARGIN,
1055 tv->v.p.y * dc->s + MARGIN,
1056 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
1057 cairo_fill(dc->cr);
1058
1059 }else if(tv->flags & VERTEX_FLAG_GREEN) {
1060 cairo_set_source_rgba(dc->cr, 0., 1., 0., 0.8f);
1061 cairo_arc(dc->cr,
1062 tv->v.p.x * dc->s + MARGIN,
1063 tv->v.p.y * dc->s + MARGIN,
1064 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
1065 cairo_fill(dc->cr);
1066 }else{
1067 cairo_set_source_rgba(dc->cr, 1., 1., 1., 0.8f);
1068 cairo_arc(dc->cr,
1069 tv->v.p.x * dc->s + MARGIN,
1070 tv->v.p.y * dc->s + MARGIN,
1071 MIL_TO_COORD (5.) * dc->s, 0, 2 * M_PI);
1072 cairo_fill(dc->cr);
1073 }
1074 i = i->next;
1075 }
1076 g_list_free(j);
1077 }
1078 datas = datas->next;
1079 }
1080 toporouter_output_close(dc);
1081 #endif
1082 }
1083
1084
1085 void
1086 toporouter_layer_free(toporouter_layer_t *l)
1087 {
1088 g_list_free(l->vertices);
1089 g_list_free(l->constraints);
1090
1091 }
1092
1093 guint
1094 groupcount(void)
1095 {
1096 int group;
1097 guint count = 0;
1098
1099 for (group = 0; group < max_group; group++) {
1100 if(PCB->LayerGroups.Number[group] > 0) count++;
1101 }
1102
1103 return count;
1104 }
1105
1106 void
1107 toporouter_free(toporouter_t *r)
1108 {
1109 struct timeval endtime;
1110 double time_delta;
1111
1112 int i;
1113 for(i=0;i<groupcount();i++) {
1114 toporouter_layer_free(&r->layers[i]);
1115 }
1116
1117 gettimeofday (&endtime, NULL);
1118 time_delta = endtime.tv_sec - r->starttime.tv_sec +
1119 (endtime.tv_usec - r->starttime.tv_usec) / 1000000.;
1120
1121 Message(_("Elapsed time: %.2f seconds\n"), time_delta);
1122 free(r->layers);
1123 free(r);
1124
1125 }
1126
1127 /* wind:
1128 * returns 1,0,-1 for counterclockwise, collinear or clockwise, respectively.
1129 */
1130 int
1131 wind(toporouter_spoint_t *p1, toporouter_spoint_t *p2, toporouter_spoint_t *p3)
1132 {
1133 double rval, dx1, dx2, dy1, dy2;
1134 dx1 = p2->x - p1->x; dy1 = p2->y - p1->y;
1135 dx2 = p3->x - p2->x; dy2 = p3->y - p2->y;
1136 rval = (dx1*dy2)-(dy1*dx2);
1137 return (rval > 0.0001) ? 1 : ((rval < -0.0001) ? -1 : 0); /* XXX: Depends on PCB coordinate scaling */
1138 }
1139
1140 static inline void
1141 print_toporouter_constraint(toporouter_constraint_t *tc)
1142 {
1143 printf("%f,%f -> %f,%f ",
1144 tc->c.edge.segment.v1->p.x,
1145 tc->c.edge.segment.v1->p.y,
1146 tc->c.edge.segment.v2->p.x,
1147 tc->c.edge.segment.v2->p.y);
1148 }
1149
1150 static inline void
1151 print_toporouter_vertex(toporouter_vertex_t *tv)
1152 {
1153 printf("%f,%f ", tv->v.p.x, tv->v.p.y);
1154 }
1155
1156
1157 /**
1158 * vertices_on_line:
1159 * Given vertex a, gradient m, and radius r:
1160 *
1161 * Return vertices on line of a & m at r from a
1162 */
1163 static void
1164 vertices_on_line (toporouter_spoint_t *a,
1165 double m,
1166 double r,
1167 toporouter_spoint_t *b0,
1168 toporouter_spoint_t *b1)
1169 {
1170
1171 double c, dx;
1172
1173 if (m == INFINITY || m == -INFINITY) {
1174
1175 b0->x = a->x;
1176 b0->y = a->y + r;
1177
1178 b1->x = a->x;
1179 b1->y = a->y - r;
1180
1181 return;
1182 }
1183
1184 c = a->y - m * a->x;
1185 dx = r / sqrt (1 + pow (m, 2));
1186
1187 b0->x = a->x + dx;
1188 b0->y = m * b0->x + c;
1189
1190 b1->x = a->x - dx;
1191 b1->y = m * b1->x + c;
1192 }
1193
1194 /**
1195 * coords_on_line:
1196 * Given coordinates ax, ay, gradient m, and radius r:
1197 *
1198 * Return coordinates on line of a & m at r from a
1199 */
1200 static void
1201 coords_on_line (double ax, gdouble ay,
1202 double m,
1203 double r,
1204 double *b0x, double *b0y,
1205 double *b1x, double *b1y)
1206 {
1207 double c, dx;
1208
1209 if (m == INFINITY || m == -INFINITY) {
1210
1211 *b0x = ax;
1212 *b0y = ay + r;
1213
1214 *b1x = ax;
1215 *b1y = ay - r;
1216
1217 return;
1218 }
1219
1220 c = ay - m * ax;
1221 dx = r / sqrt (1 + pow (m, 2));
1222
1223 *b0x = ax + dx;
1224 *b0y = m * *b0x + c;
1225
1226 *b1x = ax - dx;
1227 *b1y = m * *b1x + c;
1228 }
1229
1230 /*
1231 * Returns gradient of segment given by a & b
1232 */
1233 gdouble
1234 vertex_gradient(toporouter_spoint_t *a, toporouter_spoint_t *b)
1235 {
1236 if(a->x == b->x) return INFINITY;
1237
1238 return ((b->y - a->y) / (b->x - a->x));
1239 }
1240
1241 /*
1242 * Returns gradient of segment given by (x0,y0) & (x1,y1)
1243 */
1244 static inline gdouble
1245 cartesian_gradient(gdouble x0, gdouble y0, gdouble x1, gdouble y1)
1246 {
1247 if(epsilon_equals(x0,x1)) return INFINITY;
1248
1249 return ((y1 - y0) / (x1 - x0));
1250 }
1251
1252 /*
1253 * Returns gradient of segment given by (x0,y0) & (x1,y1)
1254 */
1255 static inline gdouble
1256 point_gradient(GtsPoint *a, GtsPoint *b)
1257 {
1258 return cartesian_gradient(a->x, a->y, b->x, b->y);
1259 }
1260
1261 gdouble
1262 segment_gradient(GtsSegment *s)
1263 {
1264 return cartesian_gradient(
1265 GTS_POINT(s->v1)->x,
1266 GTS_POINT(s->v1)->y,
1267 GTS_POINT(s->v2)->x,
1268 GTS_POINT(s->v2)->y);
1269 }
1270
1271 /*
1272 * Returns gradient perpendicular to m
1273 */
1274 gdouble
1275 perpendicular_gradient(gdouble m)
1276 {
1277 if(isinf(m)) return 0.0f;
1278 if(m < EPSILON && m > -EPSILON) return INFINITY;
1279 return -1.0f/m;
1280 }
1281
1282 /*
1283 * Returns the distance between two vertices in the x-y plane
1284 */
1285 gdouble
1286 vertices_plane_distance(toporouter_spoint_t *a, toporouter_spoint_t *b) {
1287 return sqrt( pow(a->x - b->x, 2) + pow(a->y - b->y, 2) );
1288 }
1289
1290 /*
1291 * Finds the point p distance r away from a on the line segment of a & b
1292 */
1293 static inline void
1294 vertex_outside_segment(toporouter_spoint_t *a, toporouter_spoint_t *b, gdouble r, toporouter_spoint_t *p)
1295 {
1296 toporouter_spoint_t temp[2];
1297
1298 vertices_on_line(a, vertex_gradient(a,b), r, &temp[0], &temp[1]);
1299
1300 if(vertices_plane_distance(&temp[0], b) > vertices_plane_distance(&temp[1], b)) {
1301 p->x = temp[0].x;
1302 p->y = temp[0].y;
1303 }else{
1304 p->x = temp[1].x;
1305 p->y = temp[1].y;
1306 }
1307
1308 }
1309
1310 /* proper intersection:
1311 * AB and CD must share a point interior to both segments.
1312 * returns TRUE if AB properly intersects CD.
1313 */
1314 static bool
1315 coord_intersect_prop (double ax, double ay,
1316 double bx, double by,
1317 double cx, double cy,
1318 double dx, double dy)
1319 {
1320 int wind_abc = coord_wind (ax, ay, bx, by, cx, cy);
1321 int wind_abd = coord_wind (ax, ay, bx, by, dx, dy);
1322 int wind_cda = coord_wind (cx, cy, dx, dy, ax, ay);
1323 int wind_cdb = coord_wind (cx, cy, dx, dy, bx, by);
1324
1325 /* If any of the line end-points are colinear with the other line, return false */
1326 if (wind_abc == 0 || wind_abd == 0 || wind_cda == 0 || wind_cdb == 0)
1327 return false;
1328
1329 return (wind_abc != wind_abd) && (wind_cda != wind_cdb);
1330 }
1331
1332 /* proper intersection:
1333 * AB and CD must share a point interior to both segments.
1334 * returns TRUE if AB properly intersects CD.
1335 */
1336 static bool
1337 point_intersect_prop (GtsPoint *a, GtsPoint *b, GtsPoint *c, GtsPoint *d)
1338 {
1339 int wind_abc = point_wind (a, b, c);
1340 int wind_abd = point_wind (a, b, d);
1341 int wind_cda = point_wind (c, d, a);
1342 int wind_cdb = point_wind (c, d, b);
1343
1344 /* If any of the line end-points are colinear with the other line, return false */
1345 if (wind_abc == 0 || wind_abd == 0 || wind_cda == 0 || wind_cdb == 0)
1346 return false;
1347
1348 return (wind_abc != wind_abd) && (wind_cda != wind_cdb);
1349 }
1350
1351 static inline int
1352 vertex_intersect_prop(GtsVertex *a, GtsVertex *b, GtsVertex *c, GtsVertex *d)
1353 {
1354 return point_intersect_prop(GTS_POINT(a), GTS_POINT(b), GTS_POINT(c), GTS_POINT(d));
1355 }
1356
1357 /* intersection vertex:
1358 * AB and CD must share a point interior to both segments.
1359 * returns vertex at intersection of AB and CD.
1360 */
1361 GtsVertex *
1362 vertex_intersect(GtsVertex *a, GtsVertex *b, GtsVertex *c, GtsVertex *d)
1363 {
1364 GtsVertexClass *vertex_class = GTS_VERTEX_CLASS (toporouter_vertex_class ());
1365 GtsVertex *rval;
1366 gdouble ua_top, ua_bot, ua, rx, ry;
1367
1368 /* TODO: this could be done more efficiently without duplicating computation */
1369 if(!vertex_intersect_prop(a, b, c, d)) return NULL;
1370
1371 ua_top = ((d->p.x - c->p.x) * (a->p.y - c->p.y)) -
1372 ((d->p.y - c->p.y) * (a->p.x - c->p.x));
1373 ua_bot = ((d->p.y - c->p.y) * (b->p.x - a->p.x)) -
1374 ((d->p.x - c->p.x) * (b->p.y - a->p.y));
1375 ua = ua_top / ua_bot;
1376 rx = a->p.x + (ua * (b->p.x - a->p.x));
1377 ry = a->p.y + (ua * (b->p.y - a->p.y));
1378
1379 rval = gts_vertex_new (vertex_class, rx, ry, 0.0f);
1380
1381 return rval;
1382 }
1383
1384 /* intersection vertex:
1385 * AB and CD must share a point interior to both segments.
1386 * returns vertex at intersection of AB and CD.
1387 */
1388 void
1389 coord_intersect(gdouble ax, gdouble ay, gdouble bx, gdouble by, gdouble cx, gdouble cy, gdouble dx, gdouble dy, gdouble *rx, gdouble *ry)
1390 {
1391 gdouble ua_top, ua_bot, ua;
1392
1393 ua_top = ((dx - cx) * (ay - cy)) - ((dy - cy) * (ax - cx));
1394 ua_bot = ((dy - cy) * (bx - ax)) - ((dx - cx) * (by - ay));
1395 ua = ua_top / ua_bot;
1396 *rx = ax + (ua * (bx - ax));
1397 *ry = ay + (ua * (by - ay));
1398
1399 }
1400
1401
1402 /*
1403 * returns true if c is between a and b
1404 */
1405 int
1406 point_between(GtsPoint *a, GtsPoint *b, GtsPoint *c)
1407 {
1408 if( point_wind(a, b, c) != 0 ) return 0;
1409
1410 if( a->x != b->x ) {
1411 return ((a->x <= c->x) &&
1412 (c->x <= b->x)) ||
1413 ((a->x >= c->x) &&
1414 (c->x >= b->x));
1415 }
1416 return ((a->y <= c->y) &&
1417 (c->y <= b->y)) ||
1418 ((a->y >= c->y) &&
1419 (c->y >= b->y));
1420 }
1421
1422 static inline int
1423 vertex_between(GtsVertex *a, GtsVertex *b, GtsVertex *c)
1424 {
1425 return point_between(GTS_POINT(a), GTS_POINT(b), GTS_POINT(c));
1426 }
1427
1428 void
1429 delaunay_create_from_vertices(GList *vertices, GtsSurface **surface, GtsTriangle **t)
1430 {
1431 GList *i = vertices;
1432 GtsVertex *v1, *v2, *v3;
1433 GSList *vertices_slist = NULL;
1434
1435 while (i) {
1436 vertices_slist = g_slist_prepend(vertices_slist, i->data);
1437 i = i->next;
1438 }
1439
1440 // TODO: just work this out from the board outline
1441 *t = gts_triangle_enclosing (gts_triangle_class (), vertices_slist, 100000.0f);
1442 gts_triangle_vertices (*t, &v1, &v2, &v3);
1443
1444 *surface = gts_surface_new (gts_surface_class (), gts_face_class (),
1445 GTS_EDGE_CLASS(toporouter_edge_class ()), GTS_VERTEX_CLASS(toporouter_vertex_class ()) );
1446
1447 gts_surface_add_face (*surface, gts_face_new (gts_face_class (), (*t)->e1, (*t)->e2, (*t)->e3));
1448
1449 i = vertices;
1450 while (i) {
1451 toporouter_vertex_t *v = TOPOROUTER_VERTEX(gts_delaunay_add_vertex (*surface, (GtsVertex *)i->data, NULL));
1452
1453 if(v) {
1454 printf("ERROR: vertex could not be added to CDT ");
1455 print_vertex(v);
1456 }
1457
1458 i = i->next;
1459 }
1460
1461 gts_allow_floating_vertices = TRUE;
1462 gts_object_destroy (GTS_OBJECT (v1));
1463 gts_object_destroy (GTS_OBJECT (v2));
1464 gts_object_destroy (GTS_OBJECT (v3));
1465 gts_allow_floating_vertices = FALSE;
1466
1467 g_slist_free(vertices_slist);
1468 // return surface;
1469 }
1470
1471 GSList *
1472 list_to_slist(GList *i)
1473 {
1474 GSList *rval = NULL;
1475 while(i) {
1476 rval = g_slist_prepend(rval, i->data);
1477 i = i->next;
1478 }
1479 return rval;
1480 }
1481
1482 toporouter_bbox_t *
1483 toporouter_bbox_create_from_points(int layer, GList *vertices, toporouter_term_t type, gpointer data)
1484 {
1485 toporouter_bbox_t *bbox;
1486 GSList *vertices_slist = list_to_slist(vertices);
1487
1488 // delaunay_create_from_vertices(vertices, &s, &t);
1489 bbox = TOPOROUTER_BBOX( gts_bbox_points(GTS_BBOX_CLASS(toporouter_bbox_class()), vertices_slist) );
1490 bbox->type = type;
1491 bbox->data = data;
1492
1493 bbox->surface = NULL;
1494 bbox->enclosing = NULL;
1495
1496 bbox->layer = layer;
1497
1498 bbox->point = NULL;
1499 bbox->realpoint = NULL;
1500
1501 g_slist_free(vertices_slist);
1502 return bbox;
1503 }
1504
1505 toporouter_bbox_t *
1506 toporouter_bbox_create(int layer, GList *vertices, toporouter_term_t type, gpointer data)
1507 {
1508 toporouter_bbox_t *bbox;
1509 GtsSurface *s;
1510 GtsTriangle *t;
1511
1512 delaunay_create_from_vertices(vertices, &s, &t);
1513 bbox = TOPOROUTER_BBOX( gts_bbox_surface(GTS_BBOX_CLASS(toporouter_bbox_class()), s) );
1514 bbox->type = type;
1515 bbox->data = data;
1516
1517 bbox->surface = s;
1518 bbox->enclosing = t;
1519
1520 bbox->layer = layer;
1521
1522 return bbox;
1523 }
1524
1525 GtsVertex *
1526 insert_vertex(toporouter_t *r, toporouter_layer_t *l, gdouble x, gdouble y, toporouter_bbox_t *box)
1527 {
1528 GtsVertexClass *vertex_class = GTS_VERTEX_CLASS (toporouter_vertex_class ());
1529 GtsVertex *v;
1530 GList *i;
1531
1532 i = l->vertices;
1533 while (i) {
1534 v = (GtsVertex *)i->data;
1535 if(v->p.x == x && v->p.y == y) {
1536 TOPOROUTER_VERTEX(v)->bbox = box;
1537 return v;
1538 }
1539 i = i->next;
1540 }
1541
1542 v = gts_vertex_new (vertex_class , x, y, l - r->layers);
1543 TOPOROUTER_VERTEX(v)->bbox = box;
1544 l->vertices = g_list_prepend(l->vertices, v);
1545
1546 return v;
1547 }
1548
1549 GList *
1550 insert_constraint_edge(toporouter_t *r, toporouter_layer_t *l, gdouble x1, gdouble y1, guint flags1,
1551 gdouble x2, gdouble y2, guint flags2, toporouter_bbox_t *box)
1552 {
1553 GtsVertexClass *vertex_class = GTS_VERTEX_CLASS (toporouter_vertex_class ());
1554 GtsEdgeClass *edge_class = GTS_EDGE_CLASS (toporouter_constraint_class ());
1555 GtsVertex *p[2];
1556 GtsVertex *v;
1557 GList *i;
1558 GtsEdge *e;
1559
1560 p[0] = p[1] = NULL;
1561
1562 /* insert or find points */
1563
1564 i = l->vertices;
1565 while (i) {
1566 v = (GtsVertex *)i->data;
1567 if(v->p.x == x1 && v->p.y == y1)
1568 p[0] = v;
1569 if(v->p.x == x2 && v->p.y == y2)
1570 p[1] = v;
1571 i = i->next;
1572 }
1573
1574 if(p[0] == NULL) {
1575 p[0] = gts_vertex_new (vertex_class, x1, y1, l - r->layers);
1576 TOPOROUTER_VERTEX(p[0])->bbox = box;
1577 l->vertices = g_list_prepend(l->vertices, p[0]);
1578 }
1579 if(p[1] == NULL) {
1580 p[1] = gts_vertex_new (vertex_class, x2, y2, l - r->layers);
1581 TOPOROUTER_VERTEX(p[1])->bbox = box;
1582 l->vertices = g_list_prepend(l->vertices, p[1]);
1583 }
1584
1585 TOPOROUTER_VERTEX(p[0])->flags = flags1;
1586 TOPOROUTER_VERTEX(p[1])->flags = flags2;
1587
1588 e = gts_edge_new (edge_class, p[0], p[1]);
1589 TOPOROUTER_CONSTRAINT(e)->box = box;
1590 l->constraints = g_list_prepend (l->constraints, e);
1591 // return insert_constraint_edge_rec(r, l, p, box);
1592 return g_list_prepend(NULL, e);
1593
1594 }
1595
1596 void
1597 insert_constraints_from_list(toporouter_t *r, toporouter_layer_t *l, GList *vlist, toporouter_bbox_t *box)
1598 {
1599 GList *i = vlist;
1600 toporouter_vertex_t *pv = NULL, *v;
1601
1602 while(i) {
1603 v = TOPOROUTER_VERTEX(i->data);
1604
1605 if(pv) {
1606 box->constraints =
1607 g_list_concat(box->constraints, insert_constraint_edge(r, l, vx(v), vy(v), v->flags, vx(pv), vy(pv), pv->flags, box));
1608 }
1609
1610 pv = v;
1611 i = i->next;
1612 }
1613
1614 v = TOPOROUTER_VERTEX(vlist->data);
1615 box->constraints =
1616 g_list_concat(box->constraints, insert_constraint_edge(r, l, vx(v), vy(v), v->flags, vx(pv), vy(pv), pv->flags, box));
1617
1618 }
1619
1620 void
1621 insert_centre_point(toporouter_t *r, toporouter_layer_t *l, gdouble x, gdouble y)
1622 {
1623 GList *i;
1624 GtsVertexClass *vertex_class = GTS_VERTEX_CLASS (toporouter_vertex_class ());
1625
1626 i = l->vertices;
1627 while (i) {
1628 GtsPoint *p = GTS_POINT(i->data);
1629 if(p->x == x && p->y == y)
1630 return;
1631 i = i->next;
1632 }
1633
1634 l->vertices = g_list_prepend(l->vertices, gts_vertex_new(vertex_class, x, y, 0.0f));
1635 }
1636
1637 GtsPoint *
1638 midpoint(GtsPoint *a, GtsPoint *b)
1639 {
1640 return gts_point_new(gts_point_class(), (a->x + b->x) / 2., (a->y + b->y) / 2., 0.);
1641 }
1642
1643 static inline gdouble
1644 pad_rad(PadType *pad)
1645 {
1646 return (lookup_thickness(pad->Name) / 2.) + lookup_keepaway(pad->Name);
1647 }
1648
1649 static inline gdouble
1650 pin_rad(PinType *pin)
1651 {
1652 return (lookup_thickness(pin->Name) / 2.) + lookup_keepaway(pin->Name);
1653 }
1654
1655 GList *
1656 rect_with_attachments(gdouble rad,
1657 gdouble x0, gdouble y0,
1658 gdouble x1, gdouble y1,
1659 gdouble x2, gdouble y2,
1660 gdouble x3, gdouble y3,
1661 gdouble z)
1662 {
1663 GtsVertexClass *vertex_class = GTS_VERTEX_CLASS (toporouter_vertex_class ());
1664 GList *r = NULL, *rr = NULL, *i;
1665 toporouter_vertex_t *curpoint, *temppoint;
1666
1667
1668 curpoint = TOPOROUTER_VERTEX(gts_vertex_new (vertex_class, x0, y0, z));
1669
1670 r = g_list_prepend(NULL, curpoint);
1671 r = g_list_prepend(r, gts_vertex_new (vertex_class, x1, y1, z));
1672 r = g_list_prepend(r, gts_vertex_new (vertex_class, x2, y2, z));
1673 r = g_list_prepend(r, gts_vertex_new (vertex_class, x3, y3, z));
1674
1675 i = r;
1676 while(i) {
1677 temppoint = TOPOROUTER_VERTEX(i->data);
1678 rr = g_list_prepend(rr, curpoint);
1679
1680 curpoint = temppoint;
1681 i = i->next;
1682 }
1683
1684 g_list_free(r);
1685
1686 return rr;
1687 }
1688
1689 #define VERTEX_CENTRE(x) TOPOROUTER_VERTEX( vertex_bbox(x)->point )
1690
1691 /*
1692 * Read pad data from layer into toporouter_layer_t struct
1693 *
1694 * Inserts points and constraints into GLists
1695 */
1696 int
1697 read_pads(toporouter_t *r, toporouter_layer_t *l, guint layer)
1698 {
1699 toporouter_spoint_t p[2], rv[5];
1700 gdouble x[2], y[2], t, m;
1701
1702 GList *vlist = NULL;
1703 toporouter_bbox_t *bbox = NULL;
1704
1705 guint front = GetLayerGroupNumberBySide (TOP_SIDE);
1706 guint back = GetLayerGroupNumberBySide (BOTTOM_SIDE);
1707
1708 // printf("read_pads: front = %d back = %d layer = %d\n",
1709 // front, back, layer);
1710
1711 /* If its not the top or bottom layer, there are no pads to read */
1712 if(l - r->layers != front && l - r->layers != back) return 0;
1713
1714 ELEMENT_LOOP(PCB->Data);
1715 {
1716 PAD_LOOP(element);
1717 {
1718 if( (l - r->layers == back && TEST_FLAG(ONSOLDERFLAG, pad)) ||
1719 (l - r->layers == front && !TEST_FLAG(ONSOLDERFLAG, pad)) ) {
1720
1721 t = (gdouble)pad->Thickness / 2.0f;
1722 x[0] = pad->Point1.X;
1723 x[1] = pad->Point2.X;
1724 y[0] = pad->Point1.Y;
1725 y[1] = pad->Point2.Y;
1726
1727
1728 if(TEST_FLAG(SQUAREFLAG, pad)) {
1729 /* Square or oblong pad. Four points and four constraint edges are
1730 * used */
1731
1732 if(x[0] == x[1] && y[0] == y[1]) {
1733 /* Pad is square */
1734
1735 // vlist = g_list_prepend(NULL, gts_vertex_new (vertex_class, x[0]-t, y[0]-t, 0.));
1736 // vlist = g_list_prepend(vlist, gts_vertex_new (vertex_class, x[0]-t, y[0]+t, 0.));
1737 // vlist = g_list_prepend(vlist, gts_vertex_new (vertex_class, x[0]+t, y[0]+t, 0.));
1738 // vlist = g_list_prepend(vlist, gts_vertex_new (vertex_class, x[0]+t, y[0]-t, 0.));
1739 vlist = rect_with_attachments(pad_rad(pad),
1740 x[0]-t, y[0]-t,
1741 x[0]-t, y[0]+t,
1742 x[0]+t, y[0]+t,
1743 x[0]+t, y[0]-t,
1744 l - r->layers);
1745 bbox = toporouter_bbox_create(l - r->layers, vlist, PAD, pad);
1746 r->bboxes = g_slist_prepend(r->bboxes, bbox);
1747 insert_constraints_from_list(r, l, vlist, bbox);
1748 g_list_free(vlist);
1749
1750 //bbox->point = GTS_POINT( gts_vertex_new(vertex_class, x[0], y[0], 0.) );
1751 bbox->point = GTS_POINT( insert_vertex(r, l, x[0], y[0], bbox) );
1752 g_assert(TOPOROUTER_VERTEX(bbox->point)->bbox == bbox);
1753 }else {
1754 /* Pad is diagonal oblong or othogonal oblong */
1755
1756 m = cartesian_gradient(x[0], y[0], x[1], y[1]);
1757
1758 p[0].x = x[0]; p[0].y = y[0];
1759 p[1].x = x[1]; p[1].y = y[1];
1760
1761 vertex_outside_segment(&p[0], &p[1], t, &rv[0]);
1762 vertices_on_line(&rv[0], perpendicular_gradient(m), t, &rv[1], &rv[2]);
1763
1764 vertex_outside_segment(&p[1], &p[0], t, &rv[0]);
1765 vertices_on_line(&rv[0], perpendicular_gradient(m), t, &rv[3], &rv[4]);
1766
1767 if(wind(&rv[1], &rv[2], &rv[3]) != wind(&rv[2], &rv[3], &rv[4])) {
1768 rv[0].x = rv[3].x; rv[0].y = rv[3].y;
1769 rv[3].x = rv[4].x; rv[3].y = rv[4].y;
1770 rv[4].x = rv[0].x; rv[4].y = rv[0].y;
1771 }
1772
1773 // vlist = g_list_prepend(NULL, gts_vertex_new (vertex_class, rv[1].x, rv[1].y, 0.));
1774 // vlist = g_list_prepend(vlist, gts_vertex_new (vertex_class, rv[2].x, rv[2].y, 0.));
1775 // vlist = g_list_prepend(vlist, gts_vertex_new (vertex_class, rv[3].x, rv[3].y, 0.));
1776 // vlist = g_list_prepend(vlist, gts_vertex_new (vertex_class, rv[4].x, rv[4].y, 0.));
1777 vlist = rect_with_attachments(pad_rad(pad),
1778 rv[1].x, rv[1].y,
1779 rv[2].x, rv[2].y,
1780 rv[3].x, rv[3].y,
1781 rv[4].x, rv[4].y,
1782 l - r->layers);
1783 bbox = toporouter_bbox_create(l - r->layers, vlist, PAD, pad);
1784 r->bboxes = g_slist_prepend(r->bboxes, bbox);
1785 insert_constraints_from_list(r, l, vlist, bbox);
1786 g_list_free(vlist);
1787
1788 //bbox->point = GTS_POINT( gts_vertex_new(vertex_class, (x[0] + x[1]) / 2., (y[0] + y[1]) / 2., 0.) );
1789 bbox->point = GTS_POINT( insert_vertex(r, l, (x[0] + x[1]) / 2., (y[0] + y[1]) / 2., bbox) );
1790 g_assert(TOPOROUTER_VERTEX(bbox->point)->bbox == bbox);
1791
1792 }
1793
1794 }else {
1795 /* Either round pad or pad with curved edges */
1796
1797 if(x[0] == x[1] && y[0] == y[1]) {
1798 /* One point */
1799
1800 /* bounding box same as square pad */
1801 vlist = rect_with_attachments(pad_rad(pad),
1802 x[0]-t, y[0]-t,
1803 x[0]-t, y[0]+t,
1804 x[0]+t, y[0]+t,
1805 x[0]+t, y[0]-t,
1806 l - r->layers);
1807 bbox = toporouter_bbox_create(l - r->layers, vlist, PAD, pad);
1808 r->bboxes = g_slist_prepend(r->bboxes, bbox);
1809 g_list_free(vlist);
1810
1811 //bbox->point = GTS_POINT( insert_vertex(r, l, x[0], y[0], bbox) );
1812 bbox->point = GTS_POINT( insert_vertex(r, l, x[0], y[0], bbox) );
1813
1814 }else{
1815 /* Two points and one constraint edge */
1816
1817 /* the rest is just for bounding box */
1818 m = cartesian_gradient(x[0], y[0], x[1], y[1]);
1819
1820 p[0].x = x[0]; p[0].y = y[0];
1821 p[1].x = x[1]; p[1].y = y[1];
1822
1823 vertex_outside_segment(&p[0], &p[1], t, &rv[0]);
1824 vertices_on_line(&rv[0], perpendicular_gradient(m), t, &rv[1], &rv[2]);
1825
1826 vertex_outside_segment(&p[1], &p[0], t, &rv[0]);
1827 vertices_on_line(&rv[0], perpendicular_gradient(m), t, &rv[3], &rv[4]);
1828
1829 if(wind(&rv[1], &rv[2], &rv[3]) != wind(&rv[2], &rv[3], &rv[4])) {
1830 rv[0].x = rv[3].x; rv[0].y = rv[3].y;
1831 rv[3].x = rv[4].x; rv[3].y = rv[4].y;
1832 rv[4].x = rv[0].x; rv[4].y = rv[0].y;
1833 }
1834
1835 vlist = rect_with_attachments(pad_rad(pad),
1836 rv[1].x, rv[1].y,
1837 rv[2].x, rv[2].y,
1838 rv[3].x, rv[3].y,
1839 rv[4].x, rv[4].y,
1840 l - r->layers);
1841 bbox = toporouter_bbox_create(l - r->layers, vlist, PAD, pad);
1842 r->bboxes = g_slist_prepend(r->bboxes, bbox);
1843 insert_constraints_from_list(r, l, vlist, bbox);
1844 g_list_free(vlist);
1845
1846 //bbox->point = GTS_POINT( gts_vertex_new(vertex_class, (x[0] + x[1]) / 2., (y[0] + y[1]) / 2., 0.) );
1847 bbox->point = GTS_POINT( insert_vertex(r, l, (x[0] + x[1]) / 2., (y[0] + y[1]) / 2., bbox) );
1848
1849 //bbox->constraints = g_list_concat(bbox->constraints, insert_constraint_edge(r, l, x[0], y[0], x[1], y[1], bbox));
1850
1851 }
1852
1853
1854 }
1855
1856 }
1857 }
1858 END_LOOP;
1859 }
1860 END_LOOP;
1861
1862 return 0;
1863 }
1864
1865 /*
1866 * Read points data (all layers) into GList
1867 *
1868 * Inserts pin and via points
1869 */
1870 int
1871 read_points(toporouter_t *r, toporouter_layer_t *l, int layer)
1872 {
1873 gdouble x, y, t;
1874
1875 GList *vlist = NULL;
1876 toporouter_bbox_t *bbox = NULL;
1877
1878 ELEMENT_LOOP(PCB->Data);
1879 {
1880 PIN_LOOP(element);
1881 {
1882
1883 t = (gdouble)pin->Thickness / 2.0f;
1884 x = pin->X;
1885 y = pin->Y;
1886
1887 if(TEST_FLAG (SQUAREFLAG, pin)) {
1888
1889 vlist = rect_with_attachments(pin_rad(pin),
1890 x-t, y-t,
1891 x-t, y+t,
1892 x+t, y+t,
1893 x+t, y-t,
1894 l - r->layers);
1895 bbox = toporouter_bbox_create(l - r->layers, vlist, PIN, pin);
1896 r->bboxes = g_slist_prepend(r->bboxes, bbox);
1897 insert_constraints_from_list(r, l, vlist, bbox);
1898 g_list_free(vlist);
1899 bbox->point = GTS_POINT( insert_vertex(r, l, x, y, bbox) );
1900
1901 }else if(TEST_FLAG(OCTAGONFLAG, pin)){
1902 /* TODO: Handle octagon pins */
1903 fprintf(stderr, "No support for octagon pins yet\n");
1904 }else{
1905 vlist = rect_with_attachments(pin_rad(pin),
1906 x-t, y-t,
1907 x-t, y+t,
1908 x+t, y+t,
1909 x+t, y-t,
1910 l - r->layers);
1911 bbox = toporouter_bbox_create(l - r->layers, vlist, PIN, pin);
1912 r->bboxes = g_slist_prepend(r->bboxes, bbox);
1913 g_list_free(vlist);
1914 bbox->point = GTS_POINT( insert_vertex(r, l, x, y, bbox) );
1915 }
1916 }
1917 END_LOOP;
1918 }
1919 END_LOOP;
1920
1921 VIA_LOOP(PCB->Data);
1922 {
1923
1924 t = (gdouble)via->Thickness / 2.0f;
1925 x = via->X;
1926 y = via->Y;
1927
1928 if(TEST_FLAG (SQUAREFLAG, via)) {
1929
1930 vlist = rect_with_attachments(pin_rad((PinType*)via),
1931 x-t, y-t,
1932 x-t, y+t,
1933 x+t, y+t,
1934 x+t, y-t,
1935 l - r->layers);
1936 bbox = toporouter_bbox_create(l - r->layers, vlist, VIA, via);
1937 r->bboxes = g_slist_prepend(r->bboxes, bbox);
1938 insert_constraints_from_list(r, l, vlist, bbox);
1939 g_list_free(vlist);
1940 bbox->point = GTS_POINT( insert_vertex(r, l, x, y, bbox) );
1941
1942 }else if(TEST_FLAG(OCTAGONFLAG, via)){
1943 /* TODO: Handle octagon vias */
1944 fprintf(stderr, "No support for octagon vias yet\n");
1945 }else{
1946
1947 vlist = rect_with_attachments(pin_rad((PinType*)via),
1948 x-t, y-t,
1949 x-t, y+t,
1950 x+t, y+t,
1951 x+t, y-t,
1952 l - r->layers);
1953 bbox = toporouter_bbox_create(l - r->layers, vlist, VIA, via);
1954 r->bboxes = g_slist_prepend(r->bboxes, bbox);
1955 g_list_free(vlist);
1956
1957 bbox->point = GTS_POINT( insert_vertex(r, l, x, y, bbox) );
1958
1959 }
1960 }
1961 END_LOOP;
1962 return 0;
1963 }
1964
1965 /*
1966 * Read line data from layer into toporouter_layer_t struct
1967 *
1968 * Inserts points and constraints into GLists
1969 */
1970 int
1971 read_lines(toporouter_t *r, toporouter_layer_t *l, LayerType *layer, int ln)
1972 {
1973 gdouble xs[2], ys[2];
1974
1975 GList *vlist = NULL;
1976 toporouter_bbox_t *bbox = NULL;
1977
1978 GtsVertexClass *vertex_class = GTS_VERTEX_CLASS (toporouter_vertex_class ());
1979
1980 LINE_LOOP(layer);
1981 {
1982 xs[0] = line->Point1.X;
1983 xs[1] = line->Point2.X;
1984 ys[0] = line->Point1.Y;
1985 ys[1] = line->Point2.Y;
1986 if(!(xs[0] == xs[1] && ys[0] == ys[1])) {
1987 vlist = g_list_prepend(NULL, gts_vertex_new (vertex_class, xs[0], ys[0], l - r->layers));
1988 vlist = g_list_prepend(vlist, gts_vertex_new (vertex_class, xs[1], ys[1], l - r->layers));
1989 // TODO: replace this with surface version
1990 bbox = toporouter_bbox_create_from_points(GetLayerGroupNumberByNumber(ln), vlist, LINE, line);
1991 r->bboxes = g_slist_prepend(r->bboxes, bbox);
1992 //new;;
1993 //insert_constraints_from_list(r, l, vlist, bbox);
1994 g_list_free(vlist);
1995 // bbox->point = GTS_POINT( insert_vertex(r, l, (xs[0]+xs[1])/2., (ys[0]+ys[1])/2., bbox) );
1996
1997 bbox->constraints = g_list_concat(bbox->constraints, insert_constraint_edge(r, l, xs[0], ys[0], 0, xs[1], ys[1], 0, bbox));
1998 }
1999 }
2000 END_LOOP;
2001
2002 return 0;
2003 }
2004
2005 static void
2006 create_board_edge (double x0, double y0,
2007 double x1, double y1,
2008 int layer,
2009 GList **vlist)
2010 {
2011 GtsVertexClass *vertex_class = GTS_VERTEX_CLASS (toporouter_vertex_class ());
2012 double edge_length = sqrt (pow (x0 - x1, 2) + pow (y0 - y1, 2));
2013 unsigned int vertices_per_edge = MIN (1, edge_length / BOARD_EDGE_RESOLUTION);
2014 unsigned int count;
2015 double inc = edge_length / vertices_per_edge;
2016 double x = x0, y = y0;
2017
2018 *vlist = g_list_prepend (*vlist, gts_vertex_new (vertex_class, x, y, layer));
2019
2020 for (count = 1; count < vertices_per_edge; count ++) {
2021 coord_move_towards_coord_values (x, y, x1, y1, inc, &x, &y);
2022 *vlist = g_list_prepend (*vlist, gts_vertex_new (vertex_class, x, y, layer));
2023 }
2024 }
2025
2026
2027 static void
2028 read_board_constraints (toporouter_t *r, toporouter_layer_t *l, int layer)
2029 {
2030 GList *vlist = NULL;
2031 toporouter_bbox_t *bbox;
2032
2033 /* Create points for the board edges and constrain those edges */
2034 create_board_edge (0., 0., PCB->MaxWidth, 0., layer, &vlist);
2035 create_board_edge (PCB->MaxWidth, 0., PCB->MaxWidth, PCB->MaxHeight, layer, &vlist);
2036 create_board_edge (PCB->MaxWidth, PCB->MaxHeight, 0., PCB->MaxHeight, layer, &vlist);
2037 create_board_edge (0., PCB->MaxHeight, 0., 0., layer, &vlist);
2038
2039 bbox = toporouter_bbox_create (layer, vlist, BOARD, NULL);
2040 r->bboxes = g_slist_prepend (r->bboxes, bbox);
2041 insert_constraints_from_list (r, l, vlist, bbox);
2042 g_list_free (vlist);
2043 }
2044
2045 gdouble
2046 triangle_cost(GtsTriangle *t, gpointer *data){
2047
2048 gdouble *min_quality = (gdouble *)data[0];
2049 gdouble *max_area = (gdouble *)data[1];
2050 gdouble quality = gts_triangle_quality(t);
2051 gdouble area = gts_triangle_area(t);
2052
2053 if (quality < *min_quality || area > *max_area)
2054 return quality;
2055 return 0.0;
2056 }
2057
2058
2059 void
2060 print_constraint(toporouter_constraint_t *e)
2061 {
2062 printf("CONSTRAINT:\n");
2063 print_vertex(tedge_v1(e));
2064 print_vertex(tedge_v2(e));
2065 }
2066
2067 void
2068 print_edge(toporouter_edge_t *e)
2069 {
2070 GList *i = edge_routing(e);
2071
2072 printf("EDGE:\n");
2073
2074 print_vertex(tedge_v1(e));
2075
2076 while(i) {
2077 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
2078 print_vertex(v);
2079 i = i->next;
2080 }
2081
2082 print_vertex(tedge_v2(e));
2083 }
2084 static void pick_first_face (GtsFace * f, GtsFace ** first)
2085 {
2086 if (*first == NULL)
2087 *first = f;
2088 }
2089
2090 void
2091 unconstrain(toporouter_layer_t *l, toporouter_constraint_t *c)
2092 {
2093 toporouter_edge_t *e;
2094
2095 gts_allow_floating_vertices = TRUE;
2096 e = TOPOROUTER_EDGE(gts_edge_new (GTS_EDGE_CLASS (toporouter_edge_class ()), GTS_SEGMENT(c)->v1, GTS_SEGMENT(c)->v2));
2097 gts_edge_replace(GTS_EDGE(c), GTS_EDGE(e));
2098 l->constraints = g_list_remove(l->constraints, c);
2099 c->box->constraints = g_list_remove(c->box->constraints, c);
2100 c->box = NULL;
2101 gts_object_destroy (GTS_OBJECT (c));
2102 gts_allow_floating_vertices = FALSE;
2103 }
2104
2105 void
2106 build_cdt(toporouter_t *r, toporouter_layer_t *l)
2107 {
2108 /* TODO: generalize into surface *cdt_create(vertices, constraints) */
2109 GList *i;
2110 //GtsEdge *temp;
2111 //GtsVertex *v;
2112 GtsTriangle *t;
2113 GtsVertex *v1, *v2, *v3;
2114 GSList *vertices_slist;
2115
2116 vertices_slist = list_to_slist(l->vertices);
2117
2118 if(l->surface) {
2119 GtsFace * first = NULL;
2120 gts_surface_foreach_face (l->surface, (GtsFunc) pick_first_face, &first);
2121 gts_surface_traverse_destroy(gts_surface_traverse_new (l->surface, first));
2122 }
2123
2124 t = gts_triangle_enclosing (gts_triangle_class (), vertices_slist, 1000.0f);
2125 gts_triangle_vertices (t, &v1, &v2, &v3);
2126
2127 g_slist_free(vertices_slist);
2128
2129 l->surface = gts_surface_new (gts_surface_class (), gts_face_class (),
2130 GTS_EDGE_CLASS(toporouter_edge_class ()), GTS_VERTEX_CLASS(toporouter_vertex_class ()) );
2131
2132 gts_surface_add_face (l->surface, gts_face_new (gts_face_class (), t->e1, t->e2, t->e3));
2133
2134
2135 // fprintf(stderr, "ADDED VERTICES\n");
2136 /*
2137 GtsFace *debugface;
2138
2139 if((debugface = gts_delaunay_check(l->surface))) {
2140 fprintf(stderr, "WARNING: Delaunay check failed\n");
2141 fprintf(stderr, "\tViolating triangle:\n");
2142 fprintf(stderr, "\t%f,%f %f,%f\n",
2143 debugface->triangle.e1->segment.v1->p.x,
2144 debugface->triangle.e1->segment.v1->p.y,
2145 debugface->triangle.e1->segment.v2->p.x,
2146 debugface->triangle.e1->segment.v2->p.y
2147 );
2148 fprintf(stderr, "\t%f,%f %f,%f\n",
2149 debugface->triangle.e2->segment.v1->p.x,
2150 debugface->triangle.e2->segment.v1->p.y,
2151 debugface->triangle.e2->segment.v2->p.x,
2152 debugface->triangle.e2->segment.v2->p.y
2153 );
2154 fprintf(stderr, "\t%f,%f %f,%f\n",
2155 debugface->triangle.e3->segment.v1->p.x,
2156 debugface->triangle.e3->segment.v1->p.y,
2157 debugface->triangle.e3->segment.v2->p.x,
2158 debugface->triangle.e3->segment.v2->p.y
2159 );
2160 // toporouter_draw_surface(r, l->surface, "debug.png", 4096, 4096);
2161 {
2162 int i;
2163 for(i=0;i<groupcount();i++) {
2164 char buffer[256];
2165 sprintf(buffer, "debug-%d.png", i);
2166 toporouter_draw_surface(r, r->layers[i].surface, buffer, 2048, 2048, 2, NULL, i, NULL);
2167 }
2168 }
2169
2170 }
2171 */
2172 check_cons_continuation:
2173 i = l->constraints;
2174 while (i) {
2175 toporouter_constraint_t *c1 = TOPOROUTER_CONSTRAINT(i->data);
2176 GList *j = i->next;
2177 // printf("adding cons: "); print_constraint(c1);
2178
2179 while(j) {
2180 toporouter_constraint_t *c2 = TOPOROUTER_CONSTRAINT(j->data);
2181 guint rem = 0;
2182 GList *temp;
2183
2184 // printf("\tconflict: "); print_constraint(c2);
2185 toporouter_bbox_t *c1box = c1->box, *c2box = c2->box;
2186 toporouter_vertex_t *c1v1 = tedge_v1(c1);
2187 toporouter_vertex_t *c1v2 = tedge_v2(c1);
2188 toporouter_vertex_t *c2v1 = tedge_v1(c2);
2189 toporouter_vertex_t *c2v2 = tedge_v2(c2);
2190
2191 if(gts_segments_are_intersecting(GTS_SEGMENT(c1), GTS_SEGMENT(c2)) == GTS_IN) {
2192 toporouter_vertex_t *v;
2193 unconstrain(l, c1); unconstrain(l, c2);
2194 rem = 1;
2195 // proper intersection
2196 v = TOPOROUTER_VERTEX(vertex_intersect(
2197 GTS_VERTEX(c1v1),
2198 GTS_VERTEX(c1v2),
2199 GTS_VERTEX(c2v1),
2200 GTS_VERTEX(c2v2)));
2201
2202 // remove both constraints
2203 // replace with 4x constraints
2204 // insert new intersection vertex
2205 GTS_POINT(v)->z = vz(c1v1);
2206
2207 l->vertices = g_list_prepend(l->vertices, v);
2208 // gts_delaunay_add_vertex (l->surface, GTS_VERTEX(v), NULL);
2209
2210 v->bbox = c1box;
2211
2212 temp = insert_constraint_edge(r, l, vx(c1v1), vy(c1v1), 0, vx(v), vy(v), 0, c1box);
2213 c1box->constraints = g_list_concat(c1box->constraints, temp);
2214
2215 temp = insert_constraint_edge(r, l, vx(c1v2), vy(c1v2), 0, vx(v), vy(v), 0, c1box);
2216 c1box->constraints = g_list_concat(c1box->constraints, temp);
2217
2218 temp = insert_constraint_edge(r, l, vx(c2v1), vy(c2v1), 0, vx(v), vy(v), 0, c2box);
2219 c2box->constraints = g_list_concat(c2box->constraints, temp);
2220
2221 temp = insert_constraint_edge(r, l, vx(c2v2), vy(c2v2), 0, vx(v), vy(v), 0, c2box);
2222 c2box->constraints = g_list_concat(c2box->constraints, temp);
2223
2224 }else if(gts_segments_are_intersecting(GTS_SEGMENT(c1), GTS_SEGMENT(c2)) == GTS_ON ||
2225 gts_segments_are_intersecting(GTS_SEGMENT(c2), GTS_SEGMENT(c1)) == GTS_ON) {
2226
2227 if(vertex_between(edge_v1(c2), edge_v2(c2), edge_v1(c1)) && vertex_between(edge_v1(c2), edge_v2(c2), edge_v2(c1))) {
2228 unconstrain(l, c1); unconstrain(l, c2);
2229 rem = 1;
2230 // remove c1
2231 temp = insert_constraint_edge(r, l, vx(c2v1), vy(c2v1), 0, vx(c2v2), vy(c2v2), 0, c2box);
2232 c2box->constraints = g_list_concat(c2box->constraints, temp);
2233
2234 }else if(vertex_between(edge_v1(c1), edge_v2(c1), edge_v1(c2)) && vertex_between(edge_v1(c1), edge_v2(c1), edge_v2(c2))) {
2235 unconstrain(l, c1); unconstrain(l, c2);
2236 rem = 1;
2237 // remove c2
2238 temp = insert_constraint_edge(r, l, vx(c1v1), vy(c1v1), 0, vx(c1v2), vy(c1v2), 0, c1box);
2239 c1box->constraints = g_list_concat(c1box->constraints, temp);
2240
2241 //}else if(!vertex_wind(edge_v1(c1), edge_v2(c1), edge_v1(c2)) && !vertex_wind(edge_v1(c1), edge_v2(c1), edge_v2(c2))) {
2242 /* }else if(vertex_between(edge_v1(c1), edge_v2(c1), edge_v1(c2)) || vertex_between(edge_v1(c1), edge_v2(c1), edge_v2(c2))) {
2243 unconstrain(l, c1); unconstrain(l, c2);
2244 rem = 1;
2245 printf("all colinear\n");
2246 // exit(1);
2247 temp = insert_constraint_edge(r, l, vx(c1v1), vy(c1v1), 0, vx(c1v2), vy(c1v2), 0, c1box);
2248 c1box->constraints = g_list_concat(c1box->constraints, temp);
2249
2250 if(vertex_between(GTS_VERTEX(c1v1), GTS_VERTEX(c1v2), GTS_VERTEX(c2v2))) {
2251 // v2 of c2 is inner
2252 if(vertex_between(GTS_VERTEX(c2v1), GTS_VERTEX(c2v2), GTS_VERTEX(c1v2))) {
2253 // v2 of c1 is inner
2254 // c2 = c1.v2 -> c2.v1
2255 temp = insert_constraint_edge(r, l, vx(c1v2), vy(c1v2), 0, vx(c2v1), vy(c2v1), 0, c2box);
2256 c2box->constraints = g_list_concat(c2box->constraints, temp);
2257 }else{
2258 // v1 of c1 is inner
2259 // c2 = c1.v1 -> c2.v1
2260 temp = insert_constraint_edge(r, l, vx(c1v1), vy(c1v1), 0, vx(c2v1), vy(c2v1), 0, c2box);
2261 c2box->constraints = g_list_concat(c2box->constraints, temp);
2262 }
2263 }else{
2264 // v1 of c2 is inner
2265 if(vertex_between(GTS_VERTEX(c2v1), GTS_VERTEX(c2v2), GTS_VERTEX(c1v2))) {
2266 // v2 of c1 is inner
2267 // c2 = c1.v2 -> c2.v2
2268 temp = insert_constraint_edge(r, l, vx(c1v2), vy(c1v2), 0, vx(c2v2), vy(c2v2), 0, c2box);
2269 c2box->constraints = g_list_concat(c2box->constraints, temp);
2270 }else{
2271 // v1 of c1 is inner
2272 // c2 = c1.v1 -> c2.v2
2273 temp = insert_constraint_edge(r, l, vx(c1v1), vy(c1v1), 0, vx(c2v2), vy(c2v2), 0, c2box);
2274 c2box->constraints = g_list_concat(c2box->constraints, temp);
2275 }
2276 }*/
2277 }else if(vertex_between(edge_v1(c2), edge_v2(c2), edge_v1(c1)) && c1v1 != c2v1 && c1v1 != c2v2) {
2278 unconstrain(l, c1); unconstrain(l, c2);
2279 rem = 1;
2280 //v1 of c1 is on c2
2281 printf("v1 of c1 on c2\n");
2282
2283 // replace with 2x constraints
2284 temp = insert_constraint_edge(r, l, vx(c2v1), vy(c2v1), 0, vx(c1v1), vy(c1v1), 0, c2box);
2285 c2box->constraints = g_list_concat(c2box->constraints, temp);
2286 temp = insert_constraint_edge(r, l, vx(c2v2), vy(c2v2), 0, vx(c1v1), vy(c1v1), 0, c2box);
2287 c2box->constraints = g_list_concat(c2box->constraints, temp);
2288
2289 temp = insert_constraint_edge(r, l, vx(c1v1), vy(c1v1), 0, vx(c1v2), vy(c1v2), 0, c1box);
2290 c1box->constraints = g_list_concat(c1box->constraints, temp);
2291
2292 // restore c1
2293 //temp = insert_constraint_edge(r, l, vx(tedge_v2(c1)), vy(tedge_v2(c1)), 0, vx(tedge_v1(c1)), vy(tedge_v1(c1)), 0, c1->box);
2294 //c2->box->constraints = g_list_concat(c2->box->constraints, temp);
2295
2296 }else if(vertex_between(edge_v1(c2), edge_v2(c2), edge_v2(c1)) && c1v2 != c2v1 && c1v2 != c2v2) {
2297 unconstrain(l, c1); unconstrain(l, c2);
2298 rem = 1;
2299 //v2 of c1 is on c2
2300 printf("v2 of c1 on c2\n");
2301
2302 // replace with 2x constraints
2303 temp = insert_constraint_edge(r, l, vx(c2v1), vy(c2v1), 0, vx(c1v2), vy(c1v2), 0, c2box);
2304 c2box->constraints = g_list_concat(c2box->constraints, temp);
2305 temp = insert_constraint_edge(r, l, vx(c2v2), vy(c2v2), 0, vx(c1v2), vy(c1v2), 0, c2box);
2306 c2box->constraints = g_list_concat(c2box->constraints, temp);
2307
2308 temp = insert_constraint_edge(r, l, vx(c1v1), vy(c1v1), 0, vx(c1v2), vy(c1v2), 0, c1box);
2309 c1box->constraints = g_list_concat(c1box->constraints, temp);
2310
2311 }else if(vertex_between(edge_v1(c1), edge_v2(c1), edge_v1(c2)) && c2v1 != c1v1 && c2v1 != c1v2) {
2312 unconstrain(l, c1); unconstrain(l, c2);
2313 rem = 1;
2314 //v1 of c2 is on c1
2315 printf("v1 of c2 on c1\n");
2316
2317 // replace with 2x constraints
2318 temp = insert_constraint_edge(r, l, vx(c1v1), vy(c1v1), 0, vx(c2v1), vy(c2v1), 0, c1box);
2319 c1box->constraints = g_list_concat(c1box->constraints, temp);
2320 temp = insert_constraint_edge(r, l, vx(c1v2), vy(c1v2), 0, vx(c2v1), vy(c2v1), 0, c1box);
2321 c1box->constraints = g_list_concat(c1box->constraints, temp);
2322
2323 temp = insert_constraint_edge(r, l, vx(c2v1), vy(c2v1), 0, vx(c2v2), vy(c2v2), 0, c2box);
2324 c2box->constraints = g_list_concat(c2box->constraints, temp);
2325 }else if(vertex_between(edge_v1(c1), edge_v2(c1), edge_v2(c2)) && c2v2 != c1v1 && c2v2 != c1v2) {
2326 unconstrain(l, c1); unconstrain(l, c2);
2327 rem = 1;
2328 //v2 of c2 is on c1
2329 printf("v2 of c2 on c1\n");
2330
2331 // replace with 2x constraints
2332 temp = insert_constraint_edge(r, l, vx(c1v1), vy(c1v1), 0, vx(c2v2), vy(c2v2), 0, c1box);
2333 c1box->constraints = g_list_concat(c1box->constraints, temp);
2334 temp = insert_constraint_edge(r, l, vx(c1v2), vy(c1v2), 0, vx(c2v2), vy(c2v2), 0, c1box);
2335 c1box->constraints = g_list_concat(c1box->constraints, temp);
2336
2337 temp = insert_constraint_edge(r, l, vx(c2v1), vy(c2v1), 0, vx(c2v2), vy(c2v2), 0, c2box);
2338 c2box->constraints = g_list_concat(c2box->constraints, temp);
2339 }
2340 }
2341 if(rem) goto check_cons_continuation;
2342
2343 j = j->next;
2344 }
2345
2346 i = i->next;
2347 }
2348
2349 i = l->vertices;
2350 while (i) {
2351 //v = i->data;
2352 //if(r->flags & TOPOROUTER_FLAG_DEBUG_CDTS)
2353 // fprintf(stderr, "\tadding vertex %f,%f\n", v->p.x, v->p.y);
2354 toporouter_vertex_t *v = TOPOROUTER_VERTEX(gts_delaunay_add_vertex (l->surface, (GtsVertex *)i->data, NULL));
2355 if(v) {
2356 printf("conflict: "); print_vertex(v);
2357 }
2358
2359 i = i->next;
2360 }
2361 i = l->constraints;
2362 while (i) {
2363
2364 // toporouter_constraint_t *c1 = TOPOROUTER_CONSTRAINT(i->data);
2365 // printf("adding cons: "); print_constraint(c1);
2366
2367 GSList *conflicts = gts_delaunay_add_constraint (l->surface, (GtsConstraint *)i->data);
2368 GSList *j = conflicts;
2369 while(j) {
2370 if(TOPOROUTER_IS_CONSTRAINT(j->data)) {
2371 toporouter_constraint_t *c2 = TOPOROUTER_CONSTRAINT(j->data);
2372
2373 printf("\tconflict: "); print_constraint(c2);
2374
2375 }
2376 j = j->next;
2377 }
2378 g_slist_free(conflicts);
2379
2380 i = i->next;
2381 }
2382
2383 // if(rerun)
2384 // goto build_cdt_continuation;
2385 // fprintf(stderr, "ADDED CONSTRAINTS\n");
2386 gts_allow_floating_vertices = TRUE;
2387 gts_object_destroy (GTS_OBJECT (v1));
2388 gts_object_destroy (GTS_OBJECT (v2));
2389 gts_object_destroy (GTS_OBJECT (v3));
2390 gts_allow_floating_vertices = FALSE;
2391
2392 /*
2393 {
2394 gpointer data[2];
2395 gdouble quality = 0.50, area = G_MAXDOUBLE;
2396 guint num = gts_delaunay_conform(l->surface, -1, (GtsEncroachFunc) gts_vertex_encroaches_edge, NULL);
2397
2398 if (num == 0){
2399 data[0] = &quality;
2400 data[1] = &area;
2401 num = gts_delaunay_refine(l->surface, -1, (GtsEncroachFunc) gts_vertex_encroaches_edge, NULL, (GtsKeyFunc) triangle_cost, data);
2402 }
2403 }
2404 */
2405 #ifdef DEBUG_IMPORT
2406 gts_surface_print_stats(l->surface, stderr);
2407 #endif
2408
2409 #if 0
2410 {
2411 char buffer[64];
2412 FILE *fout2;
2413 sprintf(buffer, "surface%d.gts", l - r->layers);
2414 fout2 = fopen(buffer, "w");
2415 gts_surface_write(l->surface, fout2);
2416 }
2417 #endif
2418
2419 }
2420
2421 gint
2422 visited_cmp(gconstpointer a, gconstpointer b)
2423 {
2424 if(a<b) return -1;
2425 if(a>b) return 1;
2426 return 0;
2427 }
2428
2429 static double
2430 coord_angle (double ax, double ay, double bx, double by)
2431 {
2432 return atan2 (by - ay, bx - ax);
2433 }
2434
2435 GList *
2436 cluster_vertices(toporouter_t *r, toporouter_cluster_t *c)
2437 {
2438 GList *rval = NULL;
2439
2440 if(!c) return NULL;
2441
2442 FOREACH_CLUSTER(c->netlist->clusters) {
2443 if((r->flags & TOPOROUTER_FLAG_AFTERRUBIX && cluster->c == c->c) || (!(r->flags & TOPOROUTER_FLAG_AFTERRUBIX) && cluster == c)) {
2444 FOREACH_BBOX(cluster->boxes) {
2445 if(box->type == LINE) {
2446 g_assert(box->constraints->data);
2447 rval = g_list_prepend(rval, tedge_v1(box->constraints->data));
2448 rval = g_list_prepend(rval, tedge_v2(box->constraints->data));
2449 }else if(box->point) {
2450 rval = g_list_prepend(rval, TOPOROUTER_VERTEX(box->point));
2451 //g_assert(vertex_bbox(TOPOROUTER_VERTEX(box->point)) == box);
2452 }else {
2453 printf("WARNING: cluster_vertices: unhandled bbox type\n");
2454 }
2455
2456 } FOREACH_END;
2457
2458
2459 }
2460
2461 } FOREACH_END;
2462
2463 return rval;
2464 }
2465
2466 void
2467 print_cluster(toporouter_cluster_t *c)
2468 {
2469
2470 if(!c) {
2471 printf("[CLUSTER (NULL)]\n");
2472 return;
2473 }
2474
2475 printf("CLUSTER %d: NETLIST = %s STYLE = %s\n", c->c, c->netlist->netlist, c->netlist->style);
2476
2477 FOREACH_BBOX(c->boxes) {
2478 print_bbox(box);
2479 } FOREACH_END;
2480 }
2481
2482
2483 toporouter_cluster_t *
2484 cluster_create(toporouter_t *r, toporouter_netlist_t *netlist)
2485 {
2486 toporouter_cluster_t *c = (toporouter_cluster_t *)malloc(sizeof(toporouter_cluster_t));
2487
2488 c->c = c->pc = netlist->clusters->len;
2489 g_ptr_array_add(netlist->clusters, c);
2490 c->netlist = netlist;
2491 c->boxes = g_ptr_array_new();
2492
2493 return c;
2494 }
2495
2496 toporouter_bbox_t *
2497 toporouter_bbox_locate(toporouter_t *r, toporouter_term_t type, void *data, gdouble x, gdouble y, guint layergroup)
2498 {
2499 GtsPoint *p = gts_point_new(gts_point_class(), x, y, layergroup);
2500 GSList *boxes = gts_bb_tree_stabbed(r->bboxtree, p), *i = boxes;
2501
2502 gts_object_destroy(GTS_OBJECT(p));
2503
2504 while(i) {
2505 toporouter_bbox_t *box = TOPOROUTER_BBOX(i->data);
2506
2507 if(box->type == type && box->data == data) {
2508 g_slist_free(boxes);
2509 return box;
2510 }
2511
2512 i = i->next;
2513 }
2514
2515 g_slist_free(boxes);
2516 return NULL;
2517 }
2518
2519 void
2520 cluster_join_bbox(toporouter_cluster_t *cluster, toporouter_bbox_t *box)
2521 {
2522 if(box) {
2523 g_ptr_array_add(cluster->boxes, box);
2524 box->cluster = cluster;
2525 }
2526 }
2527
2528 toporouter_netlist_t *
2529 netlist_create(toporouter_t *r, char *netlist, char *style)
2530 {
2531 toporouter_netlist_t *nl = (toporouter_netlist_t *)malloc(sizeof(toporouter_netlist_t));
2532 nl->netlist = netlist;
2533 nl->style = style;
2534 nl->clusters = g_ptr_array_new();
2535 nl->routes = g_ptr_array_new();
2536 nl->routed = NULL;
2537 nl->pair = NULL;
2538 g_ptr_array_add(r->netlists, nl);
2539 return nl;
2540 }
2541
2542 void
2543 import_clusters(toporouter_t *r)
2544 {
2545 NetListListType nets;
2546 nets = CollectSubnets(false);
2547 NETLIST_LOOP(&nets);
2548 {
2549 if(netlist->NetN > 0) {
2550 toporouter_netlist_t *nl = netlist_create(r, netlist->Net->Connection->menu->Name, netlist->Net->Connection->menu->Style);
2551
2552 NET_LOOP(netlist);
2553 {
2554
2555 toporouter_cluster_t *cluster = cluster_create(r, nl);
2556 #ifdef DEBUG_MERGING
2557 printf("NET:\n");
2558 #endif
2559 CONNECTION_LOOP (net);
2560 {
2561
2562 if(connection->type == LINE_TYPE) {
2563 LineType *line = (LineType *) connection->ptr2;
2564 toporouter_bbox_t *box = toporouter_bbox_locate(r, LINE, line, connection->X, connection->Y, connection->group);
2565 cluster_join_bbox(cluster, box);
2566
2567 #ifdef DEBUG_MERGING
2568 pcb_printf("\tLINE %#mD\n", connection->X, connection->Y);
2569 #endif
2570 }else if(connection->type == PAD_TYPE) {
2571 PadType *pad = (PadType *) connection->ptr2;
2572 toporouter_bbox_t *box = toporouter_bbox_locate(r, PAD, pad, connection->X, connection->Y, connection->group);
2573 cluster_join_bbox(cluster, box);
2574
2575 #ifdef DEBUG_MERGING
2576 pcb_printf("\tPAD %#mD\n", connection->X, connection->Y);
2577 #endif
2578 }else if(connection->type == PIN_TYPE) {
2579
2580 for(guint m=0;m<groupcount();m++) {
2581 PinType *pin = (PinType *) connection->ptr2;
2582 toporouter_bbox_t *box = toporouter_bbox_locate(r, PIN, pin, connection->X, connection->Y, m);
2583 cluster_join_bbox(cluster, box);
2584 }
2585
2586 #ifdef DEBUG_MERGING
2587 pcb_printf("\tPIN %#mD\n", connection->X, connection->Y);
2588 #endif
2589 }else if(connection->type == VIA_TYPE) {
2590
2591 for(guint m=0;m<groupcount();m++) {
2592 PinType *pin = (PinType *) connection->ptr2;
2593 toporouter_bbox_t *box = toporouter_bbox_locate(r, VIA, pin, connection->X, connection->Y, m);
2594 cluster_join_bbox(cluster, box);
2595 }
2596
2597 #ifdef DEBUG_MERGING
2598 pcb_printf("\tVIA %#mD\n", connection->X, connection->Y);
2599 #endif
2600 }else if(connection->type == POLYGON_TYPE) {
2601 PolygonType *polygon = (PolygonType *) connection->ptr2;
2602 toporouter_bbox_t *box = toporouter_bbox_locate(r, POLYGON, polygon, connection->X, connection->Y, connection->group);
2603 cluster_join_bbox(cluster, box);
2604
2605 #ifdef DEBUG_MERGING
2606 pcb_printf("\tPOLYGON %#mD\n", connection->X, connection->Y);
2607 #endif
2608
2609 }
2610 }
2611 END_LOOP;
2612 #ifdef DEBUG_MERGING
2613 printf("\n");
2614 #endif
2615 }
2616 END_LOOP;
2617
2618 }
2619 }
2620 END_LOOP;
2621 FreeNetListListMemory(&nets);
2622 }
2623
2624 void
2625 import_geometry(toporouter_t *r)
2626 {
2627 toporouter_layer_t *cur_layer;
2628
2629 int group;
2630
2631 #ifdef DEBUG_IMPORT
2632 for (group = 0; group < max_group; group++) {
2633 printf("Group %d: Number %d:\n", group, PCB->LayerGroups.Number[group]);
2634
2635 for (int entry = 0; entry < PCB->LayerGroups.Number[group]; entry++) {
2636 printf("\tEntry %d\n", PCB->LayerGroups.Entries[group][entry]);
2637 }
2638 }
2639 #endif
2640 /* Allocate space for per layer struct */
2641 cur_layer = r->layers = (toporouter_layer_t *)malloc(groupcount() * sizeof(toporouter_layer_t));
2642
2643 /* Foreach layer, read in pad vertices and constraints, and build CDT */
2644 for (group = 0; group < max_group; group++) {
2645 #ifdef DEBUG_IMPORT
2646 printf("*** LAYER GROUP %d ***\n", group);
2647 #endif
2648 if(PCB->LayerGroups.Number[group] > 0){
2649 cur_layer->vertices = NULL;
2650 cur_layer->constraints = NULL;
2651
2652 #ifdef DEBUG_IMPORT
2653 printf("reading board constraints from layer %d into group %d\n", PCB->LayerGroups.Entries[group][0], group);
2654 #endif
2655 read_board_constraints(r, cur_layer, PCB->LayerGroups.Entries[group][0]);
2656 #ifdef DEBUG_IMPORT
2657 printf("reading points from layer %d into group %d \n",PCB->LayerGroups.Entries[group][0], group);
2658 #endif
2659 read_points(r, cur_layer, PCB->LayerGroups.Entries[group][0]);
2660
2661 //#ifdef DEBUG_IMPORT
2662 // printf("reading pads from layer %d into group %d\n", number, group);
2663 //#endif
2664 read_pads(r, cur_layer, group);
2665
2666 GROUP_LOOP(PCB->Data, group)
2667 {
2668
2669 #ifdef DEBUG_IMPORT
2670 printf("reading lines from layer %d into group %d\n", number, group);
2671 #endif
2672 read_lines(r, cur_layer, layer, number);
2673
2674 }
2675 END_LOOP;
2676
2677
2678
2679 #ifdef DEBUG_IMPORT
2680 printf("building CDT\n");
2681 #endif
2682 build_cdt(r, cur_layer);
2683 printf("finished\n");
2684 /* {
2685 int i;
2686 for(i=0;i<groupcount();i++) {
2687 char buffer[256];
2688 sprintf(buffer, "build%d.png", i);
2689 toporouter_draw_surface(r, r->layers[i].surface, buffer, 2048, 2048, 2, NULL, i, NULL);
2690 }
2691 }*/
2692 #ifdef DEBUG_IMPORT
2693 printf("finished building CDT\n");
2694 #endif
2695 cur_layer++;
2696 }
2697 }
2698
2699 r->bboxtree = gts_bb_tree_new(r->bboxes);
2700
2701 import_clusters(r);
2702
2703 #ifdef DEBUG_IMPORT
2704 printf("finished import!\n");
2705 #endif
2706 }
2707
2708
2709 gint
2710 compare_points(gconstpointer a, gconstpointer b)
2711 {
2712 GtsPoint *i = GTS_POINT(a);
2713 GtsPoint *j = GTS_POINT(b);
2714
2715 if(i->x == j->x) {
2716 if(i->y == j->y) return 0;
2717 if(i->y < j->y) return -1;
2718 return 1;
2719 }
2720 if(i->x < j->x) return -1;
2721 return 1;
2722 }
2723
2724 gint
2725 compare_segments(gconstpointer a, gconstpointer b)
2726 {
2727 if(a == b) return 0;
2728 if(a < b) return -1;
2729 return 1;
2730 }
2731 #define DEBUG_CLUSTER_FIND 1
2732 toporouter_cluster_t *
2733 cluster_find(toporouter_t *r, gdouble x, gdouble y, gdouble z)
2734 {
2735 GtsPoint *p = gts_point_new(gts_point_class(), x, y, z);
2736 GSList *hits = gts_bb_tree_stabbed(r->bboxtree, p);
2737 toporouter_cluster_t *rval = NULL;
2738
2739 #ifdef DEBUG_CLUSTER_FIND
2740 printf("FINDING %f,%f,%f\n\n", x, y, z);
2741 #endif
2742
2743 while(hits) {
2744 toporouter_bbox_t *box = TOPOROUTER_BBOX(hits->data);
2745
2746 #ifdef DEBUG_CLUSTER_FIND
2747 printf("HIT BOX: "); print_bbox(box);
2748 #endif
2749
2750 if(box->layer == (int)z) {
2751 if(box->type != BOARD) {
2752 if(box->type == LINE) {
2753 LineType *line = (LineType *)box->data;
2754 gint linewind = coord_wind(line->Point1.X, line->Point1.Y, x, y, line->Point2.X, line->Point2.Y);
2755
2756 if(line->Point1.X > x - EPSILON && line->Point1.X < x + EPSILON &&
2757 line->Point1.Y > y - EPSILON && line->Point1.Y < y + EPSILON) {
2758 rval = box->cluster;
2759 // break;
2760 }
2761 if(line->Point2.X > x - EPSILON && line->Point2.X < x + EPSILON &&
2762 line->Point2.Y > y - EPSILON && line->Point2.Y < y + EPSILON) {
2763 rval = box->cluster;
2764 // break;
2765 }
2766 if(!linewind) {
2767 rval = box->cluster;
2768 // break;
2769 }
2770
2771 }else if(box->surface) {
2772
2773 if(gts_point_locate(p, box->surface, NULL)) {
2774 rval = box->cluster;
2775 break;
2776 }
2777
2778 }
2779 }
2780 }
2781 hits = hits->next;
2782 }
2783
2784 gts_object_destroy(GTS_OBJECT(p));
2785
2786
2787 #ifdef DEBUG_CLUSTER_FIND
2788 printf("cluster_find: %f,%f,%f: ", x, y, z);
2789 print_cluster(rval);
2790 #endif
2791
2792 return rval;
2793 }
2794
2795 gdouble
2796 simple_h_cost(toporouter_t *r, toporouter_vertex_t *curpoint, toporouter_vertex_t *destpoint)
2797 {
2798 gdouble layerpenalty = (vz(curpoint) == vz(destpoint)) ? 0. : r->viacost;
2799
2800 return gts_point_distance(GTS_POINT(curpoint), GTS_POINT(destpoint)) + layerpenalty;
2801 }
2802
2803 #define FCOST(x) (x->gcost + x->hcost)
2804 gdouble
2805 route_heap_cmp(gpointer item, gpointer data)
2806 {
2807 return FCOST(TOPOROUTER_VERTEX(item));
2808 }
2809
2810 #define closelist_insert(p) closelist = g_list_prepend(closelist, p)
2811
2812 typedef struct {
2813 toporouter_vertex_t *key;
2814 toporouter_vertex_t *result;
2815 }toporouter_heap_search_data_t;
2816
2817 void
2818 toporouter_heap_search(gpointer data, gpointer user_data)
2819 {
2820 toporouter_vertex_t *v = TOPOROUTER_VERTEX(data);
2821 toporouter_heap_search_data_t *heap_search_data = (toporouter_heap_search_data_t *)user_data;
2822 if(v == heap_search_data->key) heap_search_data->result = v;
2823 }
2824 /*
2825 void
2826 toporouter_heap_color(gpointer data, gpointer user_data)
2827 {
2828 toporouter_vertex_t *v = TOPOROUTER_VERTEX(data);
2829 v->flags |= (guint) user_data;
2830 }
2831 */
2832 static inline gdouble
2833 angle_span(gdouble a1, gdouble a2)
2834 {
2835 if(a1 > a2)
2836 return ((2*M_PI)-a1 + a2);
2837 return a2-a1;
2838 }
2839
2840 gdouble
2841 edge_capacity(toporouter_edge_t *e)
2842 {
2843 return gts_point_distance(GTS_POINT(edge_v1(e)), GTS_POINT(edge_v2(e)));
2844 }
2845
2846 gdouble
2847 edge_flow(toporouter_edge_t *e, toporouter_vertex_t *v1, toporouter_vertex_t *v2, toporouter_vertex_t *dest)
2848 {
2849 GList *i = edge_routing(e);
2850 toporouter_vertex_t *pv = tedge_v1(e), *v = NULL;
2851 gdouble flow = 0.;
2852 guint waiting = 1;
2853
2854 if((pv == v1 || pv == v2) && waiting) {
2855 flow += min_vertex_net_spacing(pv, dest);
2856 pv = dest;
2857 waiting = 0;
2858 }
2859
2860 g_assert(v1 != v2);
2861
2862 while(i) {
2863 v = TOPOROUTER_VERTEX(i->data);
2864
2865
2866 if(pv == dest)
2867 flow += min_vertex_net_spacing(v, pv);
2868 else
2869 flow += min_spacing(v, pv);
2870
2871 if((v == v1 || v == v2) && waiting) {
2872 flow += min_vertex_net_spacing(v, dest);
2873 pv = dest;
2874 waiting = 0;
2875 }else{
2876 pv = v;
2877 }
2878 i = i->next;
2879 }
2880
2881 if(pv == dest)
2882 flow += min_vertex_net_spacing(tedge_v2(e), pv);
2883 else
2884 flow += min_spacing(tedge_v2(e), pv);
2885
2886 return flow;
2887 }
2888
2889 void
2890 print_path(GList *path)
2891 {
2892 GList *i = path;
2893
2894 printf("PATH:\n");
2895 while(i) {
2896 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
2897 // printf("[V %f,%f,%f]\n", vx(v), vy(v), vz(v));
2898 print_vertex(v);
2899
2900 if(v->child && !g_list_find(path, v->child))
2901 printf("\t CHILD NOT IN LIST\n");
2902 if(v->parent && !g_list_find(path, v->parent))
2903 printf("\t parent NOT IN LIST\n");
2904 i = i->next;
2905 }
2906
2907
2908 }
2909
2910 GList *
2911 split_path(GList *path)
2912 {
2913 toporouter_vertex_t *pv = NULL;
2914 GList *curpath = NULL, *i, *paths = NULL;
2915 #ifdef DEBUG_ROUTE
2916 printf("PATH:\n");
2917 #endif
2918 i = path;
2919 while(i) {
2920 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
2921
2922 #ifdef DEBUG_ROUTE
2923 printf("v = %f,%f ", vx(v), vy(v));
2924 if(v->parent) printf("parent = %f,%f ", vx(v->parent), vy(v->parent));
2925 if(v->child) printf("child = %f,%f ", vx(v->child), vy(v->child));
2926 printf("\n");
2927 #endif
2928 // printf("***\n");
2929 // if(v) printf("v = %f,%f\n", GTS_POINT(v)->x, GTS_POINT(v)->y);
2930 // if(pv) printf("pv = %f,%f\n", GTS_POINT(pv)->x, GTS_POINT(pv)->y);
2931
2932
2933 if(pv)
2934 if(GTS_POINT(v)->x == GTS_POINT(pv)->x && GTS_POINT(v)->y == GTS_POINT(pv)->y) {
2935 if(g_list_length(curpath) > 1) paths = g_list_prepend(paths, curpath);
2936 curpath = NULL;
2937
2938 pv->child = NULL;
2939 v->parent = NULL;
2940 }
2941
2942 curpath = g_list_append(curpath, v);
2943
2944 pv = v;
2945 i = i->next;
2946 }
2947
2948 if(g_list_length(curpath) > 1)
2949 paths = g_list_prepend(paths, curpath);
2950
2951 return paths;
2952 }
2953
2954
2955
2956 #define edge_gradient(e) (cartesian_gradient(GTS_POINT(GTS_SEGMENT(e)->v1)->x, GTS_POINT(GTS_SEGMENT(e)->v1)->y, \
2957 GTS_POINT(GTS_SEGMENT(e)->v2)->x, GTS_POINT(GTS_SEGMENT(e)->v2)->y))
2958
2959
2960 /* sorting into ascending distance from v1 */
2961 gint
2962 routing_edge_insert(gconstpointer a, gconstpointer b, gpointer user_data)
2963 {
2964 GtsPoint *v1 = GTS_POINT(edge_v1(user_data));
2965
2966 if(gts_point_distance2(v1, GTS_POINT(a)) < gts_point_distance2(v1, GTS_POINT(b)) - EPSILON)
2967 return -1;
2968 if(gts_point_distance2(v1, GTS_POINT(a)) > gts_point_distance2(v1, GTS_POINT(b)) + EPSILON)
2969 return 1;
2970 /*
2971 printf("a = %x b = %x\n", (int) a, (int) b);
2972
2973 printf("WARNING: routing_edge_insert() with same points..\n \
2974 v1 @ %f,%f\n\
2975 a @ %f,%f\n\
2976 b @ %f,%f\n",
2977 v1->x, v1->y,
2978 vx(a), vy(a),
2979 vx(a), vy(b));
2980 printf("A: "); print_vertex(TOPOROUTER_VERTEX(a));
2981 printf("B: "); print_vertex(TOPOROUTER_VERTEX(b));
2982
2983 TOPOROUTER_VERTEX(a)->flags |= VERTEX_FLAG_RED;
2984 TOPOROUTER_VERTEX(b)->flags |= VERTEX_FLAG_RED;
2985 */
2986 return 0;
2987 }
2988
2989
2990 toporouter_vertex_t *
2991 new_temp_toporoutervertex(gdouble x, gdouble y, toporouter_edge_t *e)
2992 {
2993 GtsVertexClass *vertex_class = GTS_VERTEX_CLASS (toporouter_vertex_class ());
2994 GList *i = edge_routing(e);
2995 toporouter_vertex_t *r;
2996 ///*
2997 while(i) {
2998 r = TOPOROUTER_VERTEX(i->data);
2999 if(epsilon_equals(vx(r),x) && epsilon_equals(vy(r),y)) {
3000 if(r->flags & VERTEX_FLAG_TEMP) return r;
3001 }
3002 i = i->next;
3003 }
3004 //*/
3005 r = TOPOROUTER_VERTEX( gts_vertex_new (vertex_class, x, y, vz(edge_v1(e))) );
3006 r->flags |= VERTEX_FLAG_TEMP;
3007 r->routingedge = e;
3008
3009 if(TOPOROUTER_IS_CONSTRAINT(e))
3010 TOPOROUTER_CONSTRAINT(e)->routing = g_list_insert_sorted_with_data(edge_routing(e), r, routing_edge_insert, e);
3011 else
3012 e->routing = g_list_insert_sorted_with_data(edge_routing(e), r, routing_edge_insert, e);
3013
3014 return r;
3015 }
3016
3017
3018 /* create vertex on edge e at radius r from v, closest to ref */
3019 toporouter_vertex_t *
3020 new_temp_toporoutervertex_in_segment(toporouter_edge_t *e, toporouter_vertex_t *v, gdouble r, toporouter_vertex_t *ref)
3021 {
3022 gdouble m = edge_gradient(e);
3023 toporouter_spoint_t p, np1, np2;
3024 // toporouter_vertex_t *b = TOPOROUTER_VERTEX((GTS_VERTEX(v) == edge_v1(e)) ? edge_v2(e) : edge_v1(e));
3025 toporouter_vertex_t *rval = NULL;
3026 p.x = vx(v); p.y = vy(v);
3027
3028 vertices_on_line(&p, m, r, &np1, &np2);
3029
3030 if( (pow(np1.x - vx(ref), 2) + pow(np1.y - vy(ref), 2)) < (pow(np2.x - vx(ref), 2) + pow(np2.y - vy(ref), 2)) )
3031 rval = new_temp_toporoutervertex(np1.x, np1.y, e);
3032 else
3033 rval = new_temp_toporoutervertex(np2.x, np2.y, e);
3034
3035 return rval;
3036 }
3037
3038 gint
3039 vertex_keepout_test(toporouter_t *r, toporouter_vertex_t *v)
3040 {
3041 GList *i = r->keepoutlayers;
3042 while(i) {
3043 gdouble keepout = *((double *) i->data);
3044 if(vz(v) == keepout) return 1;
3045 i = i->next;
3046 }
3047 return 0;
3048 }
3049
3050 void
3051 closest_cluster_pair(toporouter_t *r, GList *src_vertices, GList *dest_vertices, toporouter_vertex_t **a, toporouter_vertex_t **b)
3052 {
3053 GList *i = src_vertices, *j = dest_vertices;
3054
3055 gdouble min = 0.;
3056 *a = NULL; *b = NULL;
3057
3058 i = src_vertices;
3059 while(i) {
3060 toporouter_vertex_t *v1 = TOPOROUTER_VERTEX(i->data);
3061
3062 if(vertex_keepout_test(r, v1)) { i = i->next; continue; }
3063
3064 j = dest_vertices;
3065 while(j) {
3066 toporouter_vertex_t *v2 = TOPOROUTER_VERTEX(j->data);
3067 if(vertex_keepout_test(r, v2) || vz(v2) != vz(v1)) { j = j->next; continue; }
3068
3069 if(!*a) {
3070 *a = v1; *b = v2; min = simple_h_cost(r, *a, *b);
3071 }else{
3072 gdouble tempd = simple_h_cost(r, v1, v2);
3073 if(r->flags & TOPOROUTER_FLAG_GOFAR && tempd > min) {
3074 *a = v1; *b = v2; min = tempd;
3075 }else
3076 if(tempd < min) {
3077 *a = v1; *b = v2; min = tempd;
3078 }
3079 }
3080
3081 j = j->next;
3082 }
3083
3084 i = i->next;
3085 }
3086
3087 // g_list_free(src_vertices);
3088 // g_list_free(dest_vertices);
3089 }
3090
3091
3092 toporouter_vertex_t *
3093 closest_dest_vertex(toporouter_t *r, toporouter_vertex_t *v, toporouter_route_t *routedata)
3094 {
3095 GList //*vertices = cluster_vertices(r, routedata->dest),
3096 *i = routedata->destvertices;
3097 toporouter_vertex_t *closest = NULL;
3098 gdouble closest_distance = 0.;
3099
3100 // if(routedata->flags & TOPOROUTER_FLAG_FLEX) i = r->destboxes;
3101
3102 while(i) {
3103 toporouter_vertex_t *cv = TOPOROUTER_VERTEX(i->data);
3104
3105 if(vz(cv) != vz(v)) { i = i->next; continue; }
3106
3107 if(!closest) {
3108 closest = cv; closest_distance = simple_h_cost(r, v, closest);
3109 }else{
3110 gdouble tempd = simple_h_cost(r, v, cv);
3111 if(r->flags & TOPOROUTER_FLAG_GOFAR && tempd > closest_distance) {
3112 closest = cv; closest_distance = tempd;
3113 }else
3114 if(tempd < closest_distance) {
3115 closest = cv; closest_distance = tempd;
3116 }
3117 }
3118 i = i->next;
3119 }
3120
3121 // g_list_free(vertices);
3122
3123 #ifdef DEBUG_ROUTE
3124 printf("CLOSEST = %f,%f,%f\n", vx(closest), vy(closest), vz(closest));
3125 #endif
3126 return closest;
3127 }
3128
3129 #define toporouter_edge_gradient(e) (cartesian_gradient(vx(edge_v1(e)), vy(edge_v1(e)), vx(edge_v2(e)), vy(edge_v2(e))))
3130
3131
3132 /* returns the capacity of the triangle cut through v */
3133 gdouble
3134 triangle_interior_capacity(GtsTriangle *t, toporouter_vertex_t *v)
3135 {
3136 toporouter_edge_t *e = TOPOROUTER_EDGE(gts_triangle_edge_opposite(t, GTS_VERTEX(v)));
3137 gdouble x, y, m1, m2, c2, c1;
3138 #ifdef DEBUG_ROUTE
3139 gdouble len;
3140 #endif
3141
3142 g_assert(e);
3143
3144 m1 = toporouter_edge_gradient(e);
3145 m2 = perpendicular_gradient(m1);
3146 c2 = (isinf(m2)) ? vx(v) : vy(v) - (m2 * vx(v));
3147 c1 = (isinf(m1)) ? vx(edge_v1(e)) : vy(edge_v1(e)) - (m1 * vx(edge_v1(e)));
3148
3149 if(isinf(m2))
3150 x = vx(v);
3151 else if(isinf(m1))
3152 x = vx(edge_v1(e));
3153 else
3154 x = (c2 - c1) / (m1 - m2);
3155
3156 y = (isinf(m2)) ? vy(edge_v1(e)) : (m2 * x) + c2;
3157
3158 #ifdef DEBUG_ROUTE
3159 len = gts_point_distance2(GTS_POINT(edge_v1(e)), GTS_POINT(edge_v2(e)));
3160 printf("%f,%f len = %f v = %f,%f\n", x, y, len, vx(v), vy(v));
3161 #endif
3162
3163 if(epsilon_equals(x,vx(edge_v1(e))) && epsilon_equals(y,vy(edge_v1(e)))) return INFINITY;
3164 if(epsilon_equals(x,vx(edge_v2(e))) && epsilon_equals(y,vy(edge_v2(e)))) return INFINITY;
3165
3166 if(x >= MIN(vx(edge_v1(e)),vx(edge_v2(e))) &&
3167 x <= MAX(vx(edge_v1(e)),vx(edge_v2(e))) &&
3168 y >= MIN(vy(edge_v1(e)),vy(edge_v2(e))) &&
3169 y <= MAX(vy(edge_v1(e)),vy(edge_v2(e))))
3170
3171 // if( (pow(vx(edge_v1(e)) - x, 2) + pow(vy(edge_v1(e)) - y, 2)) < len && (pow(vx(edge_v2(e)) - x, 2) + pow(vy(edge_v2(e)) - y, 2)) < len )
3172 return sqrt(pow(vx(v) - x, 2) + pow(vy(v) - y, 2));
3173
3174 return INFINITY;
3175 }
3176
3177 static inline toporouter_vertex_t *
3178 segment_common_vertex(GtsSegment *s1, GtsSegment *s2)
3179 {
3180 if(!s1 || !s2) return NULL;
3181 if(s1->v1 == s2->v1) return TOPOROUTER_VERTEX(s1->v1);
3182 if(s1->v2 == s2->v1) return TOPOROUTER_VERTEX(s1->v2);
3183 if(s1->v1 == s2->v2) return TOPOROUTER_VERTEX(s1->v1);
3184 if(s1->v2 == s2->v2) return TOPOROUTER_VERTEX(s1->v2);
3185 return NULL;
3186 }
3187
3188 static inline toporouter_vertex_t *
3189 route_vertices_common_vertex(toporouter_vertex_t *v1, toporouter_vertex_t *v2)
3190 {
3191 return segment_common_vertex(GTS_SEGMENT(v1->routingedge), GTS_SEGMENT(v2->routingedge));
3192 }
3193
3194
3195 static inline guint
3196 edges_third_edge(GtsSegment *s1, GtsSegment *s2, toporouter_vertex_t **v1, toporouter_vertex_t **v2)
3197 {
3198 if(!s1 || !s2) return 0;
3199 if(s1->v1 == s2->v1) {
3200 *v1 = TOPOROUTER_VERTEX(s1->v2);
3201 *v2 = TOPOROUTER_VERTEX(s2->v2);
3202 return 1;
3203 }
3204 if(s1->v2 == s2->v1) {
3205 *v1 = TOPOROUTER_VERTEX(s1->v1);
3206 *v2 = TOPOROUTER_VERTEX(s2->v2);
3207 return 1;
3208 }
3209 if(s1->v1 == s2->v2) {
3210 *v1 = TOPOROUTER_VERTEX(s1->v2);
3211 *v2 = TOPOROUTER_VERTEX(s2->v1);
3212 return 1;
3213 }
3214 if(s1->v2 == s2->v2) {
3215 *v1 = TOPOROUTER_VERTEX(s1->v1);
3216 *v2 = TOPOROUTER_VERTEX(s2->v1);
3217 return 1;
3218 }
3219 return 0;
3220 }
3221
3222 /* returns the flow from e1 to e2, and the flow from the vertex oppisate e1 to
3223 * e1 and the vertex oppisate e2 to e2 */
3224 gdouble
3225 flow_from_edge_to_edge(GtsTriangle *t, toporouter_edge_t *e1, toporouter_edge_t *e2,
3226 toporouter_vertex_t *common_v, toporouter_vertex_t *curpoint)
3227 {
3228 gdouble r = 0.;
3229 toporouter_vertex_t *pv = common_v, *v;
3230 toporouter_edge_t *op_edge;
3231
3232 GList *i = edge_routing(e1);
3233 while(i) {
3234 v = TOPOROUTER_VERTEX(i->data);
3235
3236 if(v == curpoint) {
3237 r += min_spacing(v, pv);
3238 pv = v;
3239 i = i->next; continue;
3240 }
3241 // if(!(v->flags & VERTEX_FLAG_TEMP)) {
3242 if((v->flags & VERTEX_FLAG_ROUTE)) {
3243 if(v->parent)
3244 if(v->parent->routingedge == e2) {
3245 r += min_spacing(v, pv);
3246 pv = v;
3247 i = i->next; continue;
3248 }
3249
3250 if(v->child)
3251 if(v->child->routingedge == e2) {
3252 r += min_spacing(v, pv);
3253 pv = v;
3254 i = i->next; continue;
3255 }
3256 }
3257 i = i->next;
3258 }
3259
3260 op_edge = TOPOROUTER_EDGE(gts_triangle_edge_opposite(t, GTS_VERTEX(common_v)));
3261
3262 g_assert(op_edge);
3263 g_assert(e1);
3264 g_assert(e2);
3265
3266 v = segment_common_vertex(GTS_SEGMENT(e2), GTS_SEGMENT(op_edge));
3267 g_assert(v);
3268
3269 //v = TOPOROUTER_VERTEX(gts_triangle_vertex_opposite(t, GTS_EDGE(e1)));
3270 if(v->flags & VERTEX_FLAG_ROUTE && v->parent && v->parent->routingedge) {
3271 if(v->parent->routingedge == e1)
3272 r += min_spacing(v, pv);
3273 }
3274
3275 v = segment_common_vertex(GTS_SEGMENT(e1), GTS_SEGMENT(op_edge));
3276 g_assert(v);
3277
3278 //v = TOPOROUTER_VERTEX(gts_triangle_vertex_opposite(t, GTS_EDGE(e2)));
3279 if(v->flags & VERTEX_FLAG_ROUTE && v->parent && v->parent->routingedge) {
3280 if(v->parent->routingedge == e1)
3281 r += min_spacing(v, pv);
3282 }
3283
3284 if(TOPOROUTER_IS_CONSTRAINT(op_edge)) {
3285 toporouter_bbox_t *box = vertex_bbox(TOPOROUTER_VERTEX(edge_v1(op_edge)));
3286 r += vertex_net_thickness(v) / 2.;
3287 if(box) {
3288 r += MAX(vertex_net_keepaway(v), cluster_keepaway(box->cluster));
3289 r += cluster_thickness(box->cluster) / 2.;
3290 }else{
3291 r += vertex_net_keepaway(v);
3292
3293 }
3294 }
3295
3296 return r;
3297 }
3298
3299
3300
3301 guint
3302 check_triangle_interior_capacity(GtsTriangle *t, toporouter_vertex_t *v, toporouter_vertex_t *curpoint,
3303 toporouter_edge_t *op_edge, toporouter_edge_t *adj_edge1, toporouter_edge_t *adj_edge2)
3304 {
3305 gdouble ic = triangle_interior_capacity(t, v);
3306 gdouble flow = flow_from_edge_to_edge(t, adj_edge1, adj_edge2, v, curpoint);
3307
3308 if(TOPOROUTER_IS_CONSTRAINT(adj_edge1) || TOPOROUTER_IS_CONSTRAINT(adj_edge2)) return 1;
3309
3310
3311 if(flow > ic) {
3312 #ifdef DEBUG_ROUTE
3313 printf("fail interior capacity flow = %f ic = %f\n", flow, ic);
3314 #endif
3315 return 0;
3316 }
3317
3318 return 1;
3319 }
3320
3321 toporouter_vertex_t *
3322 edge_routing_next_not_temp(toporouter_edge_t *e, GList *list)
3323 {
3324 if(!TOPOROUTER_IS_CONSTRAINT(e)) {
3325 while(list) {
3326 toporouter_vertex_t *v = TOPOROUTER_VERTEX(list->data);
3327 if(!(v->flags & VERTEX_FLAG_TEMP))
3328 return v;
3329
3330 list = list->next;
3331 }
3332 }
3333 return tedge_v2(e);
3334 }
3335
3336 toporouter_vertex_t *
3337 edge_routing_prev_not_temp(toporouter_edge_t *e, GList *list)
3338 {
3339 if(!TOPOROUTER_IS_CONSTRAINT(e)) {
3340 while(list) {
3341 toporouter_vertex_t *v = TOPOROUTER_VERTEX(list->data);
3342 if(!(v->flags & VERTEX_FLAG_TEMP))
3343 return v;
3344
3345 list = list->prev;
3346 }
3347 }
3348 return tedge_v1(e);
3349 }
3350
3351 void
3352 edge_adjacent_vertices(toporouter_edge_t *e, toporouter_vertex_t *v, toporouter_vertex_t **v1, toporouter_vertex_t **v2)
3353 {
3354 GList *r = g_list_find(edge_routing(e), v);
3355
3356 if(v == tedge_v1(e)) {
3357 *v1 = NULL;
3358 *v2 = edge_routing_next_not_temp(e, edge_routing(e));
3359 }else if(v == tedge_v2(e)) {
3360 *v1 = edge_routing_prev_not_temp(e, g_list_last(edge_routing(e)));
3361 *v2 = NULL;
3362 }else{
3363 // r = g_list_find(r, v);
3364 *v1 = edge_routing_prev_not_temp(e, r);
3365 *v2 = edge_routing_next_not_temp(e, r);
3366
3367 }
3368
3369 }
3370
3371
3372 GList *
3373 candidate_vertices(toporouter_vertex_t *v1, toporouter_vertex_t *v2, toporouter_vertex_t *dest, toporouter_edge_t *e)
3374 {
3375 gdouble totald, v1ms, v2ms, flow, capacity, ms;
3376 GList *vs = NULL;
3377
3378 g_assert(v1);
3379 g_assert(v2);
3380 g_assert(dest);
3381
3382 g_assert(!(v1->flags & VERTEX_FLAG_TEMP));
3383 g_assert(!(v2->flags & VERTEX_FLAG_TEMP));
3384 #ifdef DEBUG_ROUTE
3385 printf("starting candidate vertices\n");
3386 printf("v1 = %f,%f v2 = %f,%f dest = %f,%f\n", vx(v1), vy(v1), vx(v2), vy(v2), vx(dest), vy(dest));
3387 #endif
3388 totald = gts_point_distance(GTS_POINT(v1), GTS_POINT(v2));
3389 v1ms = min_spacing(v1, dest);
3390 v2ms = min_spacing(v2, dest);
3391 ms = min_spacing(dest, dest);
3392 flow = TOPOROUTER_IS_CONSTRAINT(e) ? 0. : edge_flow(e, v1, v2, dest);
3393 capacity = edge_capacity(e);
3394
3395 #ifdef DEBUG_ROUTE
3396 g_assert(totald > 0);
3397
3398 printf("v1ms = %f v2ms = %f totald = %f ms = %f capacity = %f flow = %f\n", v1ms, v2ms, totald, ms, capacity, flow);
3399 #endif
3400
3401 if(flow >= capacity) return NULL;
3402
3403
3404 if(v1ms + v2ms + ms >= totald) {
3405 vs = g_list_prepend(vs, new_temp_toporoutervertex((vx(v1)+vx(v2)) / 2., (vy(v1)+vy(v2)) / 2., e));
3406 }else{
3407 gdouble x0, y0, x1, y1, d;
3408
3409 vertex_move_towards_vertex_values(GTS_VERTEX(v1), GTS_VERTEX(v2), v1ms, &x0, &y0);
3410
3411 vs = g_list_prepend(vs, new_temp_toporoutervertex(x0, y0, e));
3412
3413 vertex_move_towards_vertex_values(GTS_VERTEX(v2), GTS_VERTEX(v1), v2ms, &x1, &y1);
3414
3415 vs = g_list_prepend(vs, new_temp_toporoutervertex(x1, y1, e));
3416
3417 d = sqrt(pow(x0-x1,2) + pow(y0-y1,2));
3418
3419 if(ms < d) {
3420 // guint nint = d / ms;
3421 // gdouble dif = d / (nint + 1);
3422 gdouble dif = d / 2;
3423
3424 // for(guint j=0;j<nint;j++) {
3425 gdouble x, y;
3426
3427 // coord_move_towards_coord_values(x0, y0, x1, y1, dif * j, &x, &y);
3428 coord_move_towards_coord_values(x0, y0, x1, y1, dif, &x, &y);
3429
3430 vs = g_list_prepend(vs, new_temp_toporoutervertex(x, y, e));
3431
3432 // }
3433
3434 }
3435
3436 }
3437 #ifdef DEBUG_ROUTE
3438 printf("candidate vertices returning %d\n", g_list_length(vs));
3439 #endif
3440 return vs;
3441 }
3442
3443 GList *
3444 edge_routing_first_not_temp(toporouter_edge_t *e)
3445 {
3446 GList *i = edge_routing(e);
3447 toporouter_vertex_t *v;
3448
3449 while(i) {
3450 v = TOPOROUTER_VERTEX(i->data);
3451 if(!(v->flags & VERTEX_FLAG_TEMP)) return i;
3452
3453 i = i->next;
3454 }
3455
3456 return NULL;
3457 }
3458
3459 GList *
3460 edge_routing_last_not_temp(toporouter_edge_t *e)
3461 {
3462 GList *i = edge_routing(e), *last = NULL;
3463 toporouter_vertex_t *v;
3464
3465 while(i) {
3466 v = TOPOROUTER_VERTEX(i->data);
3467 if(!(v->flags & VERTEX_FLAG_TEMP)) last = i;
3468
3469 i = i->next;
3470 }
3471
3472 return last;
3473 }
3474
3475 void
3476 delete_vertex(toporouter_vertex_t *v)
3477 {
3478
3479 if(v->flags & VERTEX_FLAG_TEMP) {
3480 if(v->routingedge) {
3481 if(TOPOROUTER_IS_CONSTRAINT(v->routingedge))
3482 TOPOROUTER_CONSTRAINT(v->routingedge)->routing = g_list_remove(TOPOROUTER_CONSTRAINT(v->routingedge)->routing, v);
3483 else
3484 v->routingedge->routing = g_list_remove(v->routingedge->routing, v);
3485 }
3486
3487 gts_object_destroy ( GTS_OBJECT(v) );
3488 }
3489 }
3490
3491 #define edge_is_blocked(e) (TOPOROUTER_IS_EDGE(e) ? (e->flags & EDGE_FLAG_DIRECTCONNECTION) : 0)
3492
3493 GList *
3494 triangle_candidate_points_from_vertex(GtsTriangle *t, toporouter_vertex_t *v, toporouter_vertex_t *dest, toporouter_route_t *routedata)
3495 {
3496 toporouter_edge_t *op_e = TOPOROUTER_EDGE(gts_triangle_edge_opposite(t, GTS_VERTEX(v)));
3497 toporouter_vertex_t *vv1, *vv2, *constraintv = NULL;
3498 toporouter_edge_t *e1, *e2;
3499 GList *i;
3500 GList *rval = NULL;
3501
3502 #ifdef DEBUG_ROUTE
3503 printf("\tTRIANGLE CAND POINT FROM VERTEX\n");
3504
3505 g_assert(op_e);
3506 #endif
3507
3508 e1 = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(v), edge_v1(op_e)));
3509 e2 = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(v), edge_v2(op_e)));
3510
3511
3512 if(TOPOROUTER_IS_CONSTRAINT(op_e)) {
3513 if(TOPOROUTER_CONSTRAINT(op_e)->box->type == BOARD) {
3514 #ifdef DEBUG_ROUTE
3515 printf("BOARD constraint\n");
3516 #endif
3517 return NULL;
3518 }
3519 if(constraint_netlist(TOPOROUTER_CONSTRAINT(op_e)) != vertex_netlist(dest)) { // || TOPOROUTER_CONSTRAINT(op_e)->routing) {
3520 #ifdef DEBUG_ROUTE
3521 printf("op_e routing:\n");
3522 print_edge(op_e);
3523 #endif
3524 return NULL;
3525 }
3526 #ifdef DEBUG_ROUTE
3527 printf("RETURNING CONSTRAINT POING\n");
3528 #endif
3529 constraintv = new_temp_toporoutervertex_in_segment(op_e, TOPOROUTER_VERTEX(edge_v1(op_e)),
3530 gts_point_distance(GTS_POINT(edge_v1(op_e)), GTS_POINT(edge_v2(op_e))) / 2., TOPOROUTER_VERTEX(edge_v2(op_e)));
3531 // return g_list_prepend(NULL, vv1);
3532
3533
3534 }
3535
3536 if(edge_is_blocked(op_e)) {
3537 goto triangle_candidate_points_from_vertex_exit;
3538 }
3539 // v1 = tedge_v1(op_e);
3540 // v2 = tedge_v2(op_e);
3541
3542 if(v == tedge_v1(e1)) {
3543 i = edge_routing_first_not_temp(e1);
3544 }else{
3545 i = edge_routing_last_not_temp(e1);
3546 }
3547
3548 if(i) {
3549 toporouter_vertex_t *temp = TOPOROUTER_VERTEX(i->data);
3550
3551 if(temp->parent == tedge_v2(op_e) || temp->child == tedge_v2(op_e)) {
3552 #ifdef DEBUG_ROUTE
3553 printf("temp -> op_e->v2\n");
3554 #endif
3555 goto triangle_candidate_points_from_vertex_exit;
3556 }
3557 if(temp->parent->routingedge == op_e) {
3558 vv1 = temp->parent;
3559 #ifdef DEBUG_ROUTE
3560 printf("vv1->parent\n");
3561 #endif
3562
3563 }else if(temp->child->routingedge == op_e) {
3564 vv1 = temp->child;
3565 #ifdef DEBUG_ROUTE
3566 printf("vv1->child\n");
3567 #endif
3568
3569 }else{
3570 // must be to e2
3571 #ifdef DEBUG_ROUTE
3572 printf("temp -> e2?\n");
3573 printf("op_e = %f,%f\t\t%f,%f\n", vx(edge_v1(op_e)), vy(edge_v1(op_e)), vx(edge_v2(op_e)), vy(edge_v2(op_e)) );
3574 if(temp->parent->routingedge)
3575 printf("temp->parent->routingedge = %f,%f \t\t %f,%f\n",
3576 vx(edge_v1(temp->parent->routingedge)), vy(edge_v1(temp->parent->routingedge)),
3577 vx(edge_v2(temp->parent->routingedge)), vy(edge_v2(temp->parent->routingedge))
3578 );
3579 else
3580 printf("temp->parent->routingedge = NULL\n");
3581
3582 if(temp->child->routingedge)
3583 printf("temp->child->routingedge = %f,%f \t\t %f,%f\n",
3584 vx(edge_v1(temp->child->routingedge)), vy(edge_v1(temp->child->routingedge)),
3585 vx(edge_v2(temp->child->routingedge)), vy(edge_v2(temp->child->routingedge))
3586 );
3587 else
3588 printf("temp->child->routingedge = NULL\n");
3589 #endif
3590 goto triangle_candidate_points_from_vertex_exit;
3591 }
3592
3593 }else{
3594 vv1 = tedge_v1(op_e);
3595 #ifdef DEBUG_ROUTE
3596 printf("nothing on e1\n");
3597 #endif
3598 }
3599
3600 if(v == tedge_v1(e2)) {
3601 i = edge_routing_first_not_temp(e2);
3602 }else{
3603 i = edge_routing_last_not_temp(e2);
3604 }
3605
3606 if(i) {
3607 toporouter_vertex_t *temp = TOPOROUTER_VERTEX(i->data);
3608
3609 if(temp->parent == tedge_v1(op_e) || temp->child == tedge_v1(op_e)) {
3610 #ifdef DEBUG_ROUTE
3611 printf("temp -> op_e->v2\n");
3612 #endif
3613 goto triangle_candidate_points_from_vertex_exit;
3614 }
3615
3616 if(temp->parent->routingedge == op_e) {
3617 vv2 = temp->parent;
3618 #ifdef DEBUG_ROUTE
3619 printf("vv2->parent\n");
3620 #endif
3621 }else if(temp->child->routingedge == op_e) {
3622 vv2 = temp->child;
3623 #ifdef DEBUG_ROUTE
3624 printf("vv2->child\n");
3625 #endif
3626
3627 }else{
3628 // must be to e1
3629 #ifdef DEBUG_ROUTE
3630 printf("temp -> e1?\n");
3631 printf("op_e = %f,%f\t\t%f,%f\n", vx(edge_v1(op_e)), vy(edge_v1(op_e)), vx(edge_v2(op_e)), vy(edge_v2(op_e)) );
3632 if(temp->parent->routingedge)
3633 printf("temp->parent->routingedge = %f,%f \t\t %f,%f\n",
3634 vx(edge_v1(temp->parent->routingedge)), vy(edge_v1(temp->parent->routingedge)),
3635 vx(edge_v2(temp->parent->routingedge)), vy(edge_v2(temp->parent->routingedge))
3636 );
3637 else
3638 printf("temp->parent->routingedge = NULL\n");
3639
3640 if(temp->child->routingedge)
3641 printf("temp->child->routingedge = %f,%f \t\t %f,%f\n",
3642 vx(edge_v1(temp->child->routingedge)), vy(edge_v1(temp->child->routingedge)),
3643 vx(edge_v2(temp->child->routingedge)), vy(edge_v2(temp->child->routingedge))
3644 );
3645 else
3646 printf("temp->child->routingedge = NULL\n");
3647 #endif
3648 goto triangle_candidate_points_from_vertex_exit;
3649 }
3650
3651 }else{
3652 vv2 = tedge_v2(op_e);
3653 #ifdef DEBUG_ROUTE
3654 printf("nothing on e2\n");
3655 #endif
3656 }
3657
3658 #ifdef DEBUG_ROUTE
3659 printf("size of e1 routing = %d e2 routing = %d op_e routing = %d\n",
3660 g_list_length(edge_routing(e1)), g_list_length(edge_routing(e2)), g_list_length(edge_routing(op_e)));
3661 #endif
3662
3663 if(constraintv) {
3664 #ifdef DEBUG_ROUTE
3665 print_vertex(constraintv);
3666 printf("constraintv %f,%f returning\n", vx(constraintv), vy(constraintv));
3667 #endif
3668 return g_list_prepend(NULL, constraintv);
3669 }
3670
3671 i = edge_routing(op_e);
3672 while(i) {
3673 toporouter_vertex_t *temp = TOPOROUTER_VERTEX(i->data);
3674
3675 if(temp->parent == v || temp->child == v) {
3676 rval = g_list_concat(rval, candidate_vertices(vv1, temp, dest, op_e));
3677 vv1 = temp;
3678 }
3679
3680 i = i->next;
3681 }
3682
3683 rval = g_list_concat(rval, candidate_vertices(vv1, vv2, dest, op_e));
3684
3685 return rval;
3686
3687
3688
3689 triangle_candidate_points_from_vertex_exit:
3690 if(constraintv) //delete_vertex(constraintv);
3691 g_hash_table_insert(routedata->alltemppoints, constraintv, constraintv);
3692
3693 g_list_free(rval);
3694
3695 return NULL;
3696 }
3697
3698 void
3699 routedata_insert_temppoints(toporouter_route_t *data, GList *temppoints) {
3700 GList *j = temppoints;
3701 while(j) {
3702 g_hash_table_insert(data->alltemppoints, j->data, j->data);
3703 j = j->next;
3704 }
3705 }
3706
3707
3708 static inline gint
3709 constraint_route_test(toporouter_constraint_t *c, toporouter_route_t *routedata)
3710 {
3711 if(c->box->cluster && c->box->cluster->netlist == routedata->src->netlist) {
3712 if(c->box->cluster->c == routedata->dest->c || c->box->cluster->c == routedata->src->c) return 1;
3713 }
3714 return 0;
3715 }
3716
3717 GList *
3718 all_candidates_on_edge(toporouter_edge_t *e, toporouter_route_t *routedata)
3719 {
3720 GList *rval = NULL;
3721 if(edge_is_blocked(e)) return NULL;
3722
3723 if(!TOPOROUTER_IS_CONSTRAINT(e)) {
3724 GList *i = edge_routing(e);
3725 toporouter_vertex_t *pv = tedge_v1(e);
3726
3727 while(i) {
3728 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
3729 if(!(v->flags & VERTEX_FLAG_TEMP)) {
3730 rval = g_list_concat(rval, candidate_vertices(pv, v, TOPOROUTER_VERTEX(routedata->destvertices->data), e));
3731 pv = v;
3732 }
3733 i = i->next;
3734 }
3735
3736 rval = g_list_concat(rval, candidate_vertices(pv, tedge_v2(e), TOPOROUTER_VERTEX(routedata->destvertices->data), e));
3737 }else if(TOPOROUTER_CONSTRAINT(e)->box->type == BOARD) {
3738 return NULL;
3739 }else if(constraint_route_test(TOPOROUTER_CONSTRAINT(e), routedata)) {
3740 toporouter_vertex_t *consv = new_temp_toporoutervertex_in_segment(e, tedge_v1(e), tvdistance(tedge_v1(e), tedge_v2(e)) / 2., tedge_v2(e));
3741 rval = g_list_prepend(rval, consv);
3742 // g_hash_table_insert(routedata->alltemppoints, consv, consv);
3743 }
3744
3745 return rval;
3746 }
3747
3748 GList *
3749 triangle_all_candidate_points_from_vertex(GtsTriangle *t, toporouter_vertex_t *v, toporouter_route_t *routedata)
3750 {
3751 toporouter_edge_t *op_e = TOPOROUTER_EDGE(gts_triangle_edge_opposite(t, GTS_VERTEX(v)));
3752 return all_candidates_on_edge(op_e, routedata);
3753 }
3754
3755 GList *
3756 triangle_all_candidate_points_from_edge(toporouter_t *r, GtsTriangle *t, toporouter_edge_t *e, toporouter_route_t *routedata,
3757 toporouter_vertex_t **dest, toporouter_vertex_t *curpoint)
3758 {
3759 toporouter_vertex_t *op_v;
3760 toporouter_edge_t *e1, *e2;
3761 GList *i, *rval = NULL, *rval2 = NULL;
3762 toporouter_vertex_t *boxpoint = NULL;
3763 guint e1intcap, e2intcap;
3764
3765 op_v = TOPOROUTER_VERTEX(gts_triangle_vertex_opposite(t, GTS_EDGE(e)));
3766
3767
3768 if(vertex_bbox(op_v)) boxpoint = TOPOROUTER_VERTEX(vertex_bbox(op_v)->point);
3769
3770 if(g_list_find(routedata->destvertices, op_v)) {
3771 rval = g_list_prepend(rval, op_v);
3772 *dest = op_v;
3773 return rval;
3774 }else if(g_list_find(routedata->destvertices, boxpoint)) {
3775 *dest = boxpoint;
3776 }else if(g_list_find(routedata->srcvertices, op_v)) {
3777 rval = g_list_prepend(rval, op_v);
3778 }
3779
3780 e1 = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(op_v), edge_v1(e)));
3781 e2 = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(op_v), edge_v2(e)));
3782
3783 rval = g_list_concat(rval, all_candidates_on_edge(e1, routedata));
3784 rval = g_list_concat(rval, all_candidates_on_edge(e2, routedata));
3785
3786 e1intcap = check_triangle_interior_capacity(t, tedge_v1(e), curpoint, e2, e, e1);
3787 e2intcap = check_triangle_interior_capacity(t, tedge_v2(e), curpoint, e1, e, e2);
3788
3789 i = rval;
3790 while(i) {
3791 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
3792
3793 if(!v->routingedge)
3794 rval2 = g_list_prepend(rval2, v);
3795 else if(v->routingedge == e1 && !(!TOPOROUTER_IS_CONSTRAINT(e1) && !e1intcap))
3796 rval2 = g_list_prepend(rval2, v);
3797 else if(v->routingedge == e2 && !(!TOPOROUTER_IS_CONSTRAINT(e2) && !e2intcap))
3798 rval2 = g_list_prepend(rval2, v);
3799
3800 i = i->next;
3801 }
3802 g_list_free(rval);
3803
3804 return rval2;
3805 }
3806
3807 GList *
3808 triangle_candidate_points_from_edge(toporouter_t *r, GtsTriangle *t, toporouter_edge_t *e, toporouter_vertex_t *v, toporouter_vertex_t **dest,
3809 toporouter_route_t *routedata)
3810 {
3811 toporouter_vertex_t *v1, *v2, *op_v, *vv = NULL, *e1constraintv = NULL, *e2constraintv = NULL;
3812 toporouter_edge_t *e1, *e2;
3813 GList *e1cands = NULL, *e2cands = NULL, *rval = NULL;
3814 guint noe1 = 0, noe2 = 0;
3815
3816 op_v = TOPOROUTER_VERTEX(gts_triangle_vertex_opposite(t, GTS_EDGE(e)));
3817
3818 e1 = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(op_v), edge_v1(e)));
3819 e2 = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(op_v), edge_v2(e)));
3820
3821 g_assert(*dest);
3822
3823 // v1 is prev dir, v2 is next dir
3824 edge_adjacent_vertices(e, v, &v1, &v2);
3825
3826 if(TOPOROUTER_IS_CONSTRAINT(e1)) {
3827 GList *i = edge_routing(e1);
3828
3829 if(TOPOROUTER_CONSTRAINT(e1)->box->type == BOARD) {
3830 noe1 = 1;
3831 }else if(!constraint_route_test(TOPOROUTER_CONSTRAINT(e1), routedata)) {
3832 noe1 = 1;
3833 #ifdef DEBUG_ROUTE
3834 printf("noe1 netlist\n");
3835 #endif
3836 }else
3837
3838 if(v1 == tedge_v1(e) ||
3839 (v1->parent->routingedge && v1->parent->routingedge == e1) ||
3840 (v1->child->routingedge && v1->child->routingedge == e1)) {
3841 e1constraintv = new_temp_toporoutervertex_in_segment(e1, tedge_v1(e1), gts_point_distance(GTS_POINT(edge_v1(e1)), GTS_POINT(edge_v2(e1))) / 2., tedge_v2(e1));
3842 }
3843
3844 while(i) {
3845 toporouter_vertex_t *temp = TOPOROUTER_VERTEX(i->data);
3846
3847 if((temp->child == tedge_v2(e) || temp->parent == tedge_v2(e)) && !(temp->flags & VERTEX_FLAG_TEMP)) noe2 = 1;
3848
3849 i = i->next;
3850 }
3851
3852 goto triangle_candidate_points_e2;
3853 }
3854
3855 if(edge_is_blocked(e1)) {
3856 noe1 = 1;
3857 goto triangle_candidate_points_e2;
3858 }
3859
3860 if(v1 == tedge_v1(e)) {
3861 // continue up e1
3862 toporouter_vertex_t *vv1, *vv2;
3863 edge_adjacent_vertices(e1, v1, &vv1, &vv2);
3864
3865 #ifdef DEBUG_ROUTE
3866 printf("v1 == e->v1\n");
3867 #endif
3868
3869 if(vv1) {
3870 // candidates from v1 until vv1
3871 vv = vv1;
3872 }else{
3873 // candidates from v1 until vv2
3874 vv = vv2;
3875 }
3876
3877 if(!e1constraintv) e1cands = candidate_vertices(v1, vv, *dest, e1);
3878
3879 if(vv != op_v) {
3880 if(vv->parent == tedge_v2(e) || vv->child == tedge_v2(e)) {
3881 #ifdef DEBUG_ROUTE
3882 printf("noe2 0\n");
3883 #endif
3884 noe2 = 1;
3885 }
3886 }
3887
3888 }else if(v1->parent != op_v && v1->child != op_v) {
3889 toporouter_vertex_t *vv1 = NULL, *vv2 = NULL;
3890
3891 #ifdef DEBUG_ROUTE
3892 printf("v1 != e->v1\n");
3893 #endif
3894
3895 if(v1->parent->routingedge == e1) {
3896 vv1 = v1->parent;
3897 #ifdef DEBUG_ROUTE
3898 printf("v1 parent = e1\n");
3899 #endif
3900 if(op_v == tedge_v1(e1)) {
3901 // candidates from v1->parent until prev vertex
3902 vv2 = edge_routing_prev_not_temp(e1, g_list_find(edge_routing(e1), v1->parent)->prev);
3903 }else{
3904 // candidates from v1->parent until next vertex
3905 vv2 = edge_routing_next_not_temp(e1, g_list_find(edge_routing(e1), v1->parent)->next);
3906 }
3907
3908 }else if(v1->child->routingedge == e1) {
3909 vv1 = v1->child;
3910 #ifdef DEBUG_ROUTE
3911 printf("v1 child = e1\n");
3912 #endif
3913 if(op_v == tedge_v1(e1)) {
3914 // candidates from v1->child until prev vertex
3915 vv2 = edge_routing_prev_not_temp(e1, g_list_find(edge_routing(e1), v1->child)->prev);
3916 }else{
3917 // candidates from v1->child until next vertex
3918 vv2 = edge_routing_next_not_temp(e1, g_list_find(edge_routing(e1), v1->child)->next);
3919 }
3920
3921 }else{
3922 #ifdef DEBUG_ROUTE
3923 printf("v1 ? \n");
3924 #endif
3925 goto triangle_candidate_points_e2;
3926 }
3927
3928 if(vv1 && vv2) {
3929 if(vv2->parent == tedge_v2(e) || vv2->child == tedge_v2(e)) {
3930 #ifdef DEBUG_ROUTE
3931 printf("noe2 1\n");
3932 #endif
3933 noe2 = 1;
3934 }
3935
3936 if(!e1constraintv) e1cands = candidate_vertices(vv1, vv2, *dest, e1);
3937
3938 vv = vv2;
3939 }
3940 }
3941
3942 if(vv && vv == op_v) {
3943 toporouter_vertex_t *boxpoint = NULL;
3944
3945 if(vertex_bbox(op_v)) boxpoint = TOPOROUTER_VERTEX(vertex_bbox(op_v)->point);
3946
3947 if(g_list_find(routedata->destvertices, op_v)) {
3948 rval = g_list_prepend(rval, op_v);
3949 *dest = op_v;
3950 }else if(g_list_find(routedata->destvertices, boxpoint)) {
3951 *dest = boxpoint;
3952 }else if(g_list_find(routedata->srcvertices, op_v)) {
3953 rval = g_list_prepend(rval, op_v);
3954 }
3955 }
3956
3957 triangle_candidate_points_e2:
3958
3959 if(noe2) {
3960 // printf("noe2\n");
3961 goto triangle_candidate_points_finish;
3962 }
3963
3964 if(TOPOROUTER_IS_CONSTRAINT(e2)) {
3965 GList *i = edge_routing(e2);
3966
3967 if(TOPOROUTER_CONSTRAINT(e2)->box->type == BOARD) {
3968 noe2 = 1;
3969 // goto triangle_candidate_points_finish;
3970 }else if(!constraint_route_test(TOPOROUTER_CONSTRAINT(e2), routedata)) {
3971 #ifdef DEBUG_ROUTE
3972 printf("noe2 netlist\n");
3973 #endif
3974 noe2 = 1;
3975 // goto triangle_candidate_points_finish;
3976 }else if(v2 == tedge_v2(e) ||
3977 (v2->parent->routingedge && v2->parent->routingedge == e2) ||
3978 (v2->child->routingedge && v2->child->routingedge == e2)) {
3979
3980 e2constraintv = new_temp_toporoutervertex_in_segment(e2, tedge_v1(e2), gts_point_distance(GTS_POINT(edge_v1(e2)), GTS_POINT(edge_v2(e2))) / 2., tedge_v2(e2));
3981
3982 }
3983
3984 while(i) {
3985 toporouter_vertex_t *temp = TOPOROUTER_VERTEX(i->data);
3986
3987 if((temp->child == tedge_v1(e) || temp->parent == tedge_v1(e)) && !(temp->flags & VERTEX_FLAG_TEMP))
3988 noe1 = 1;
3989
3990 i = i->next;
3991 }
3992
3993
3994
3995 goto triangle_candidate_points_finish;
3996 }
3997
3998 if(edge_is_blocked(e2)) {
3999 noe2 = 1;
4000 goto triangle_candidate_points_finish;
4001 }
4002
4003 if(v2 == tedge_v2(e)) {
4004 // continue up e2
4005 toporouter_vertex_t *vv1 = NULL, *vv2 = NULL;
4006 edge_adjacent_vertices(e2, v2, &vv1, &vv2);
4007
4008 #ifdef DEBUG_ROUTE
4009 printf("v2 == e->v2\n");
4010 #endif
4011
4012 if(vv1) {
4013 // candidates from v2 until vv1
4014 vv = vv1;
4015 }else{
4016 // candidates from v2 until vv2
4017 vv = vv2;
4018 }
4019
4020 if(!e2constraintv) e2cands = candidate_vertices(v2, vv, *dest, e2);
4021
4022 if(vv != op_v) {
4023 if(vv->parent == tedge_v1(e) || vv->child == tedge_v1(e)) {
4024 #ifdef DEBUG_ROUTE
4025 printf("noe1 0\n");
4026 #endif
4027 noe1 = 1;
4028 }
4029 }
4030
4031 }else if(v2->parent != op_v && v2->child != op_v) {
4032 toporouter_vertex_t *vv1 = NULL, *vv2 = NULL;
4033
4034 #ifdef DEBUG_ROUTE
4035 printf("v2 == e->v2\n");
4036 #endif
4037
4038 if(v2->parent->routingedge == e2) {
4039 vv1 = v2->parent;
4040 if(op_v == tedge_v1(e2)) {
4041 // candidates from v2->parent until prev vertex
4042 vv2 = edge_routing_prev_not_temp(e2, g_list_find(edge_routing(e2), vv1)->prev);
4043 }else{
4044 // candidates from v2->parent until next vertex
4045 vv2 = edge_routing_next_not_temp(e2, g_list_find(edge_routing(e2), vv1)->next);
4046 }
4047
4048 }else if(v2->child->routingedge == e2) {
4049 vv1 = v2->child;
4050 if(op_v == tedge_v1(e2)) {
4051 // candidates from v2->child until prev vertex
4052 vv2 = edge_routing_prev_not_temp(e2, g_list_find(edge_routing(e2), vv1)->prev);
4053 }else{
4054 // candidates from v2->child until next vertex
4055 vv2 = edge_routing_next_not_temp(e2, g_list_find(edge_routing(e2), vv1)->next);
4056 }
4057
4058 }else{
4059 goto triangle_candidate_points_finish;
4060 }
4061
4062 if(vv1 && vv2) {
4063 if(vv2->parent == tedge_v1(e) || vv2->child == tedge_v1(e)) {
4064 #ifdef DEBUG_ROUTE
4065 printf("noe1 1\n");
4066 #endif
4067 noe1 = 1;
4068 }
4069
4070 if(!e2constraintv) e2cands = candidate_vertices(vv1, vv2, *dest, e2);
4071 }
4072 }
4073
4074 triangle_candidate_points_finish:
4075
4076 v1 = segment_common_vertex(GTS_SEGMENT(e), GTS_SEGMENT(e1));
4077 v2 = segment_common_vertex(GTS_SEGMENT(e), GTS_SEGMENT(e2));
4078
4079 if(noe1 || !check_triangle_interior_capacity(t, v1, v, e2, e, e1)) {
4080 #ifdef DEBUG_ROUTE
4081 printf("freeing e1cands\n");
4082 #endif
4083 routedata_insert_temppoints(routedata, e1cands);
4084 g_list_free(e1cands);
4085 e1cands = NULL;
4086 }
4087
4088 if(noe2 || !check_triangle_interior_capacity(t, v2, v, e1, e, e2)) {
4089 #ifdef DEBUG_ROUTE
4090 printf("freeing e2cands\n");
4091 #endif
4092 routedata_insert_temppoints(routedata, e2cands);
4093 g_list_free(e2cands);
4094 e2cands = NULL;
4095 }
4096
4097 if(!noe1 && e1constraintv) {
4098 e1cands = g_list_prepend(e1cands, e1constraintv);
4099 }else if(e1constraintv) {
4100 g_hash_table_insert(routedata->alltemppoints, e1constraintv, e1constraintv);
4101 // delete_vertex(e1constraintv);
4102 }
4103
4104 if(!noe2 && e2constraintv) {
4105 e2cands = g_list_prepend(e2cands, e2constraintv);
4106 }else if(e2constraintv) {
4107 g_hash_table_insert(routedata->alltemppoints, e2constraintv, e2constraintv);
4108 // delete_vertex(e2constraintv);
4109 }
4110
4111 if(!noe1 && !noe2) return g_list_concat(rval, g_list_concat(e1cands, e2cands));
4112
4113 return g_list_concat(e1cands, e2cands);
4114 }
4115
4116 GList *
4117 compute_candidate_points(toporouter_t *tr, toporouter_layer_t *l, toporouter_vertex_t *curpoint, toporouter_route_t *data,
4118 toporouter_vertex_t **closestdest)
4119 {
4120 GList *r = NULL, *j;
4121 toporouter_edge_t *edge = curpoint->routingedge, *tempedge;
4122
4123 if(vertex_keepout_test(tr, curpoint)) goto compute_candidate_points_finish;
4124
4125 /* direct connection */
4126 // if(curpoint == TOPOROUTER_VERTEX(data->src->point))
4127 if((tempedge = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(curpoint), GTS_VERTEX(*closestdest))))) {
4128
4129 if(TOPOROUTER_IS_CONSTRAINT(tempedge)) {
4130 goto compute_candidate_points_finish;
4131 }else{
4132 if(!tempedge->routing) {
4133 r = g_list_prepend(NULL, *closestdest);
4134 tempedge->flags |= EDGE_FLAG_DIRECTCONNECTION;
4135 goto compute_candidate_points_finish;
4136 }else{
4137 #ifdef DEBUG_ROUTE
4138 printf("Direct connection, but has routing\n");
4139 #endif
4140 }
4141
4142 }
4143 /* if we get to here, there is routing blocking the direct connection,
4144 * continue as per normal */
4145 }
4146
4147 /* a real point origin */
4148 if(!(curpoint->flags & VERTEX_FLAG_TEMP)) {
4149 GSList *triangles, *i;
4150 i = triangles = gts_vertex_triangles(GTS_VERTEX(curpoint), NULL);
4151 #ifdef DEBUG_ROUTE
4152 printf("triangle count = %d\n", g_slist_length(triangles));
4153 #endif
4154 while(i) {
4155 GtsTriangle *t = GTS_TRIANGLE(i->data);
4156 GList *temppoints;
4157
4158 if(tr->flags & TOPOROUTER_FLAG_LEASTINVALID) temppoints = triangle_all_candidate_points_from_vertex(t, curpoint, data);
4159 else temppoints = triangle_candidate_points_from_vertex(t, curpoint, *closestdest, data);
4160
4161 #ifdef DEBUG_ROUTE
4162 printf("\treturned %d points\n", g_list_length(temppoints));
4163 #endif
4164 routedata_insert_temppoints(data, temppoints);
4165
4166 r = g_list_concat(r, temppoints);
4167 i = i->next;
4168 }
4169 g_slist_free(triangles);
4170 }else /* a temp point */ {
4171 int prevwind = vertex_wind(GTS_SEGMENT(edge)->v1, GTS_SEGMENT(edge)->v2, GTS_VERTEX(curpoint->parent));
4172 // printf("tempoint\n");
4173
4174 GSList *i = GTS_EDGE(edge)->triangles;
4175
4176 while(i) {
4177 GtsVertex *oppv = gts_triangle_vertex_opposite(GTS_TRIANGLE(i->data), GTS_EDGE(edge));
4178 if(prevwind != vertex_wind(GTS_SEGMENT(edge)->v1, GTS_SEGMENT(edge)->v2, oppv)) {
4179 GList *temppoints;
4180
4181 if(tr->flags & TOPOROUTER_FLAG_LEASTINVALID) temppoints = triangle_all_candidate_points_from_edge(tr, GTS_TRIANGLE(i->data), edge,
4182 data, closestdest, curpoint);
4183 else temppoints = triangle_candidate_points_from_edge(tr, GTS_TRIANGLE(i->data), edge, curpoint, closestdest, data);
4184
4185 j = temppoints;
4186 while(j) {
4187 toporouter_vertex_t *tempj = TOPOROUTER_VERTEX(j->data);
4188 if(tempj->flags & VERTEX_FLAG_TEMP)
4189 g_hash_table_insert(data->alltemppoints, j->data, j->data);
4190 #ifdef DEBUG_ROUTE
4191 else
4192 printf("got cand not a temp\n");
4193 #endif
4194 j = j->next;
4195 }
4196 r = g_list_concat(r, temppoints);
4197
4198 break;
4199 }
4200 i = i->next;
4201 }
4202 }
4203
4204 compute_candidate_points_finish:
4205
4206 if(vertex_bbox(curpoint) && vertex_bbox(curpoint)->cluster) {
4207 if(vertex_bbox(curpoint)->cluster->c == data->src->c) {
4208 r = g_list_concat(r, g_list_copy(data->srcvertices));
4209 }
4210 }
4211
4212 return r;
4213 }
4214
4215 gboolean
4216 temp_point_clean(gpointer key, gpointer value, gpointer user_data)
4217 {
4218 toporouter_vertex_t *tv = TOPOROUTER_VERTEX(value);
4219 if(tv->flags & VERTEX_FLAG_TEMP) {
4220 if(TOPOROUTER_IS_CONSTRAINT(tv->routingedge))
4221 TOPOROUTER_CONSTRAINT(tv->routingedge)->routing = g_list_remove(TOPOROUTER_CONSTRAINT(tv->routingedge)->routing, tv);
4222 else
4223 tv->routingedge->routing = g_list_remove(tv->routingedge->routing, tv);
4224 gts_object_destroy ( GTS_OBJECT(tv) );
4225 }
4226 return TRUE;
4227 }
4228
4229 void
4230 clean_routing_edges(toporouter_t *r, toporouter_route_t *data)
4231 {
4232 g_hash_table_foreach_remove(data->alltemppoints, temp_point_clean, NULL);
4233 g_hash_table_destroy(data->alltemppoints);
4234 data->alltemppoints = NULL;
4235 }
4236
4237 gdouble
4238 path_score(toporouter_t *r, GList *path)
4239 {
4240 gdouble score = 0.;
4241 toporouter_vertex_t *pv = NULL;
4242 toporouter_vertex_t *v0 = NULL;
4243
4244 if(!path) return INFINITY;
4245
4246 v0 = TOPOROUTER_VERTEX(path->data);
4247
4248 while(path) {
4249 toporouter_vertex_t *v = TOPOROUTER_VERTEX(path->data);
4250
4251 if(pv) {
4252 score += gts_point_distance(GTS_POINT(pv), GTS_POINT(v));
4253 if(pv != v0 && vz(pv) != vz(v))
4254 if(path->next)
4255 score += r->viacost;
4256
4257 }
4258
4259 pv = v;
4260 path = path->next;
4261 }
4262
4263 return score;
4264 }
4265
4266 void
4267 print_vertices(GList *vertices)
4268 {
4269 while(vertices) {
4270 toporouter_vertex_t *v = TOPOROUTER_VERTEX(vertices->data);
4271 print_vertex(v);
4272 print_bbox(vertex_bbox(v));
4273 if(vertex_bbox(v)) {
4274 printf("has bbox\n");
4275 if(vertex_bbox(v)->cluster)
4276 printf("has cluster\n");
4277 else
4278 printf("no cluster\n");
4279 }else printf("no bbox\n");
4280 vertices = vertices->next;
4281 }
4282 }
4283
4284 gint
4285 space_edge(gpointer item, gpointer data)
4286 {
4287 toporouter_edge_t *e = TOPOROUTER_EDGE(item);
4288 GList *i;
4289 gdouble *forces;
4290
4291 if(TOPOROUTER_IS_CONSTRAINT(e)) return 0;
4292
4293 if(!edge_routing(e) || !g_list_length(edge_routing(e))) return 0;
4294
4295 forces = (gdouble *)malloc(sizeof(double) * g_list_length(edge_routing(e)));
4296
4297 for(guint j=0;j<100;j++) {
4298 guint k=0;
4299 guint equilibrium = 1;
4300
4301 i = edge_routing(e);
4302 while(i) {
4303 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
4304 gdouble ms, d;
4305
4306 if(i->prev) {
4307 // ms = min_net_net_spacing(TOPOROUTER_VERTEX(i->prev->data), v);
4308 ms = min_spacing(TOPOROUTER_VERTEX(i->prev->data), v);
4309 d = gts_point_distance(GTS_POINT(i->prev->data), GTS_POINT(v));
4310 }else{
4311 // ms = min_vertex_net_spacing(v, tedge_v1(e));
4312 ms = min_spacing(v, tedge_v1(e));
4313 d = gts_point_distance(GTS_POINT(edge_v1(e)), GTS_POINT(v));
4314 }
4315
4316 if(d < ms) forces[k] = ms - d;
4317 else forces[k] = 0.;
4318
4319 if(i->next) {
4320 // ms = min_net_net_spacing(TOPOROUTER_VERTEX(i->next->data), v);
4321 ms = min_spacing(TOPOROUTER_VERTEX(i->next->data), v);
4322 d = gts_point_distance(GTS_POINT(i->next->data), GTS_POINT(v));
4323 }else{
4324 // ms = min_vertex_net_spacing(v, tedge_v2(e));
4325 ms = min_spacing(v, tedge_v2(e));
4326 d = gts_point_distance(GTS_POINT(edge_v2(e)), GTS_POINT(v));
4327 }
4328
4329 if(d < ms) forces[k] += d - ms;
4330
4331 k++; i = i->next;
4332 }
4333
4334 k = 0;
4335 i = edge_routing(e);
4336 while(i) {
4337 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
4338 if(forces[k] > EPSILON || forces[k] < -EPSILON) equilibrium = 0;
4339 vertex_move_towards_vertex_values(GTS_VERTEX(v), edge_v2(e), forces[k] * 0.1, &(GTS_POINT(v)->x), &(GTS_POINT(v)->y));
4340 k++; i = i->next;
4341 }
4342
4343 if(equilibrium) {
4344 // printf("reached equilibriium at %d\n", j);
4345 break;
4346 }
4347
4348 }
4349
4350 free(forces);
4351 return 0;
4352 }
4353
4354 void
4355 swap_vertices(toporouter_vertex_t **v1, toporouter_vertex_t **v2)
4356 {
4357 toporouter_vertex_t *tempv = *v1;
4358 *v1 = *v2;
4359 *v2 = tempv;
4360 }
4361
4362 void
4363 split_edge_routing(toporouter_vertex_t *v, GList **l1, GList **l2)
4364 {
4365 GList *base, *i;
4366
4367 g_assert(v);
4368 g_assert(v->routingedge);
4369
4370 base = g_list_find(vrouting(v), v);
4371
4372 *l1 = g_list_prepend(*l1, tedge_v1(v->routingedge));
4373 *l2 = g_list_prepend(*l2, tedge_v2(v->routingedge));
4374
4375 g_assert(base);
4376
4377 i = base->next;
4378 while(i) {
4379 if(!(TOPOROUTER_VERTEX(i->data)->flags & VERTEX_FLAG_TEMP)) *l2 = g_list_prepend(*l2, i->data);
4380 i = i->next;
4381 }
4382
4383 i = base->prev;
4384 while(i) {
4385 if(!(TOPOROUTER_VERTEX(i->data)->flags & VERTEX_FLAG_TEMP)) *l1 = g_list_prepend(*l1, i->data);
4386 i = i->prev;
4387 }
4388 }
4389
4390 GList *
4391 vertices_routing_conflicts(toporouter_vertex_t *v, toporouter_vertex_t *pv)
4392 {
4393 toporouter_edge_t *e;
4394 GList *rval = NULL, *l1 = NULL, *l2 = NULL, *i;
4395
4396 if(vz(v) != vz(pv)) return NULL;
4397 g_assert(v != pv);
4398
4399 if(!v->routingedge && !pv->routingedge) {
4400 e = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(v), GTS_VERTEX(pv)));
4401 if(!e) return NULL;
4402 i = edge_routing(e);
4403 while(i) {
4404 rval = g_list_prepend(rval, TOPOROUTER_VERTEX(i->data)->route);
4405 i = i->next;
4406 }
4407 return rval;
4408 }
4409
4410 if(TOPOROUTER_IS_CONSTRAINT(v->routingedge) && TOPOROUTER_IS_CONSTRAINT(pv->routingedge))
4411 return NULL;
4412
4413 if(TOPOROUTER_IS_CONSTRAINT(pv->routingedge)) swap_vertices(&pv, &v);
4414
4415 if(!v->routingedge) swap_vertices(&pv, &v);
4416
4417 e = v->routingedge;
4418
4419 split_edge_routing(v, &l1, &l2);
4420 g_assert(l2);
4421 g_assert(l1);
4422
4423 if(!pv->routingedge) {
4424 toporouter_edge_t *e1, *e2;
4425 e1 = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(pv), edge_v1(e)));
4426 e2 = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(pv), edge_v2(e)));
4427
4428 l1 = g_list_concat(l1, g_list_copy(edge_routing(e1)));
4429 l2 = g_list_concat(l2, g_list_copy(edge_routing(e2)));
4430
4431 }else{
4432 GList *pvlist1 = NULL, *pvlist2 = NULL;
4433 toporouter_vertex_t *commonv = route_vertices_common_vertex(v, pv);
4434
4435 g_assert(commonv);
4436
4437 split_edge_routing(pv, &pvlist1, &pvlist2);
4438
4439 if(commonv == tedge_v1(e)) {
4440 toporouter_edge_t *ope;
4441
4442 if(commonv == tedge_v1(pv->routingedge)) {
4443 l1 = g_list_concat(l1, pvlist1);
4444 l2 = g_list_concat(l2, pvlist2);
4445 ope = TOPOROUTER_EDGE(gts_vertices_are_connected(edge_v2(e), edge_v2(pv->routingedge)));
4446 }else{
4447 l1 = g_list_concat(l1, pvlist2);
4448 l2 = g_list_concat(l2, pvlist1);
4449 ope = TOPOROUTER_EDGE(gts_vertices_are_connected(edge_v2(e), edge_v1(pv->routingedge)));
4450 }
4451 g_assert(ope);
4452 l2 = g_list_concat(l2, g_list_copy(edge_routing(ope)));
4453
4454 }else{
4455 toporouter_edge_t *ope;
4456 if(commonv == tedge_v1(pv->routingedge)) {
4457 l1 = g_list_concat(l1, pvlist2);
4458 l2 = g_list_concat(l2, pvlist1);
4459 ope = TOPOROUTER_EDGE(gts_vertices_are_connected(edge_v1(e), edge_v2(pv->routingedge)));
4460 }else{
4461 l1 = g_list_concat(l1, pvlist1);
4462 l2 = g_list_concat(l2, pvlist2);
4463 ope = TOPOROUTER_EDGE(gts_vertices_are_connected(edge_v1(e), edge_v1(pv->routingedge)));
4464 }
4465 g_assert(ope);
4466 l1 = g_list_concat(l1, g_list_copy(edge_routing(ope)));
4467 }
4468 }
4469
4470 i = l1;
4471 while(i) {
4472 toporouter_vertex_t *curv = TOPOROUTER_VERTEX(i->data);
4473
4474 if(curv->flags & VERTEX_FLAG_ROUTE && (g_list_find(l2, curv->parent) || g_list_find(l2, curv->child))) {
4475 if(!g_list_find(rval, curv->route)) rval = g_list_prepend(rval, curv->route);
4476 }
4477 i = i->next;
4478 }
4479 i = l2;
4480 while(i) {
4481 toporouter_vertex_t *curv = TOPOROUTER_VERTEX(i->data);
4482
4483 if(curv->flags & VERTEX_FLAG_ROUTE && (g_list_find(l1, curv->parent) || g_list_find(l1, curv->child))) {
4484 if(!g_list_find(rval, curv->route)) rval = g_list_prepend(rval, curv->route);
4485 }
4486 i = i->next;
4487 }
4488
4489 g_list_free(l1);
4490 g_list_free(l2);
4491
4492 return rval;
4493 }
4494
4495 gdouble
4496 vertices_routing_conflict_cost(toporouter_t *r, toporouter_vertex_t *v, toporouter_vertex_t *pv, guint *n)
4497 {
4498 GList *conflicts = vertices_routing_conflicts(v, pv), *i;
4499 gdouble penalty = 0.;
4500
4501 i = conflicts;
4502 while(i) {
4503 (*n) += 1;
4504 penalty += TOPOROUTER_ROUTE(i->data)->score;
4505 i = i->next;
4506 }
4507 g_list_free(conflicts);
4508 // if(penalty > 0.) printf("conflict penalty of %f with %f,%f %f,%f\n", penalty, vx(v), vy(v), vx(pv), vy(pv));
4509 return penalty;
4510 }
4511
4512 gdouble
4513 gcost(toporouter_t *r, toporouter_route_t *data, toporouter_vertex_t *srcv, toporouter_vertex_t *v, toporouter_vertex_t *pv, guint *n,
4514 toporouter_netlist_t *pair)
4515 {
4516 gdouble cost = 0., segcost;
4517
4518 *n = pv->gn;
4519
4520 if(g_list_find(data->srcvertices, v)) return 0.;
4521
4522 segcost = tvdistance(pv, v);
4523
4524 if(pair && !TOPOROUTER_IS_CONSTRAINT(v->routingedge) && v->routingedge) {
4525 GList *list = g_list_find(v->routingedge->routing, v);
4526 toporouter_vertex_t *pv = edge_routing_prev_not_temp(v->routingedge, list);
4527 toporouter_vertex_t *nv = edge_routing_next_not_temp(v->routingedge, list);
4528
4529 if(pv->route && pv->route->netlist == pair) {
4530 }else if(nv->route && nv->route->netlist == pair) {
4531 }else{
4532 segcost *= 10.;
4533 }
4534 }
4535
4536 cost = pv->gcost + segcost;
4537
4538 if(r->flags & TOPOROUTER_FLAG_LEASTINVALID) {
4539 gdouble conflictcost = 0.;
4540
4541 if(pv && v != pv && vz(v) == vz(pv)) conflictcost = vertices_routing_conflict_cost(r, v, pv, n);
4542
4543 if(!(r->flags & TOPOROUTER_FLAG_DETOUR && *n == 1)) {
4544 cost += conflictcost * (pow(*n,2));
4545 }
4546 }
4547
4548 return cost;
4549 }
4550
4551 #define vlayer(x) (&r->layers[(int)vz(x)])
4552
4553 guint
4554 candidate_is_available(toporouter_vertex_t *pv, toporouter_vertex_t *v)
4555 {
4556 // TODO: still needed?
4557 while(pv) {
4558 if(pv == v) return 0;
4559 pv = pv->parent;
4560 }
4561
4562 return 1;
4563 }
4564
4565 GList *
4566 route(toporouter_t *r, toporouter_route_t *data, guint debug)
4567 {
4568 GtsEHeap *openlist = gts_eheap_new(route_heap_cmp, NULL);
4569 GList *closelist = NULL;
4570 GList *i, *rval = NULL;
4571 toporouter_netlist_t *pair = NULL;
4572 gint count = 0;
4573
4574 toporouter_vertex_t *srcv = NULL, *destv = NULL, *curpoint = NULL;
4575 toporouter_layer_t *cur_layer; //, *dest_layer;
4576
4577 g_assert(data->src->c != data->dest->c);
4578
4579 if(data->destvertices) g_list_free(data->destvertices);
4580 if(data->srcvertices) g_list_free(data->srcvertices);
4581
4582 data->destvertices = cluster_vertices(r, data->dest);
4583 data->srcvertices = cluster_vertices(r, data->src);
4584
4585 closest_cluster_pair(r, data->srcvertices, data->destvertices, &curpoint, &destv);
4586
4587 if(!curpoint || !destv) goto routing_return;
4588
4589 srcv = curpoint;
4590 cur_layer = vlayer(curpoint);
4591 //dest_layer = vlayer(destv);
4592
4593 data->path = NULL;
4594
4595 data->alltemppoints = g_hash_table_new(g_direct_hash, g_direct_equal);
4596
4597 curpoint->parent = NULL;
4598 curpoint->child = NULL;
4599 curpoint->gcost = 0.;
4600 curpoint->gn = 0;
4601 curpoint->hcost = simple_h_cost(r, curpoint, destv);
4602
4603 if(data->netlist && data->netlist->pair) {
4604 GList *i = r->routednets;
4605 while(i) {
4606 toporouter_route_t *curroute = TOPOROUTER_ROUTE(i->data);
4607 if(curroute->netlist == data->netlist->pair) {
4608 pair = data->netlist->pair;
4609 break;
4610 }
4611 i = i->next;
4612 }
4613 }
4614
4615 gts_eheap_insert(openlist, curpoint);
4616
4617 while(gts_eheap_size(openlist) > 0) {
4618 GList *candidatepoints;
4619 data->curpoint = curpoint;
4620 //draw_route_status(r, closelist, openlist, curpoint, data, count++);
4621
4622 curpoint = TOPOROUTER_VERTEX( gts_eheap_remove_top(openlist, NULL) );
4623 if(curpoint->parent && !(curpoint->flags & VERTEX_FLAG_TEMP)) {
4624 if(vz(curpoint) != vz(destv)) {
4625 toporouter_vertex_t *tempv;
4626 cur_layer = vlayer(curpoint);//&r->layers[(int)vz(curpoint)];
4627 tempv = closest_dest_vertex(r, curpoint, data);
4628 if(tempv) {
4629 destv = tempv;
4630 //dest_layer = vlayer(destv);//&r->layers[(int)vz(destv)];
4631
4632 }
4633 }
4634 }
4635
4636 // destpoint = closest_dest_vertex(r, curpoint, data);
4637 // dest_layer = &r->layers[(int)vz(destpoint)];
4638
4639 if(g_list_find(data->destvertices, curpoint)) {
4640 toporouter_vertex_t *temppoint = curpoint;
4641 srcv = NULL;
4642 destv = curpoint;
4643
4644 data->path = NULL;
4645
4646 while(temppoint) {
4647 data->path = g_list_prepend(data->path, temppoint);
4648 if(g_list_find(data->srcvertices, temppoint)) {
4649 srcv = temppoint;
4650 if(r->flags & TOPOROUTER_FLAG_AFTERORDER) break;
4651 }
4652 temppoint = temppoint->parent;
4653 }
4654 rval = data->path;
4655 data->score = path_score(r, data->path);
4656 #ifdef DEBUG_ROUTE
4657 printf("ROUTE: path score = %f computation cost = %d\n", data->score, count);
4658 #endif
4659
4660 if(srcv->bbox->cluster != data->src) {
4661 data->src = srcv->bbox->cluster;
4662 }
4663
4664 if(destv->bbox->cluster != data->dest) {
4665 data->dest = destv->bbox->cluster;
4666 }
4667 goto route_finish;
4668 }
4669 closelist_insert(curpoint);
4670 #ifdef DEBUG_ROUTE
4671 printf("\n\n\n*** ROUTE COUNT = %d\n", count);
4672 #endif
4673 candidatepoints = compute_candidate_points(r, cur_layer, curpoint, data, &destv);
4674
4675 //#ifdef DEBUG_ROUTE
4676 /*********************
4677 if(debug && !strcmp(data->dest->netlist, " unnamed_net2"))
4678 {
4679 unsigned int mask = ~(VERTEX_FLAG_RED | VERTEX_FLAG_GREEN | VERTEX_FLAG_BLUE);
4680 char buffer[256];
4681 int j;
4682
4683 for(j=0;j<groupcount();j++) {
4684 i = r->layers[j].vertices;
4685 while(i) {
4686 TOPOROUTER_VERTEX(i->data)->flags &= mask;
4687 i = i->next;
4688 }
4689 }
4690
4691 i = candidatepoints;
4692 while(i) {
4693 TOPOROUTER_VERTEX(i->data)->flags |= VERTEX_FLAG_GREEN;
4694 // printf("flagged a candpoint @ %f,%f\n",
4695 // vx(i->data), vy(i->data));
4696 i = i->next;
4697 }
4698
4699 curpoint->flags |= VERTEX_FLAG_BLUE;
4700 if(curpoint->parent)
4701 curpoint->parent->flags |= VERTEX_FLAG_RED;
4702
4703
4704 for(j=0;j<groupcount();j++) {
4705 GList *datas = g_list_prepend(NULL, data);
4706 sprintf(buffer, "route-%d-%05d.png", j, count);
4707 toporouter_draw_surface(r, r->layers[j].surface, buffer, 1024, 1024, 2, datas, j, candidatepoints);
4708 g_list_free(datas);
4709 }
4710 }
4711 //#endif
4712 *********************/
4713 count++;
4714 // if(count > 100) exit(0);
4715 i = candidatepoints;
4716 while(i) {
4717 toporouter_vertex_t *temppoint = TOPOROUTER_VERTEX(i->data);
4718 if(!g_list_find(closelist, temppoint) && candidate_is_available(curpoint, temppoint)) { //&& temppoint != curpoint) {
4719 toporouter_heap_search_data_t heap_search_data = { temppoint, NULL };
4720
4721 guint temp_gn;
4722 gdouble temp_g_cost = gcost(r, data, srcv, temppoint, curpoint, &temp_gn, pair);
4723
4724
4725 gts_eheap_foreach(openlist,toporouter_heap_search, &heap_search_data);
4726
4727 if(heap_search_data.result) {
4728 if(temp_g_cost < temppoint->gcost) {
4729
4730 temppoint->gcost = temp_g_cost;
4731 temppoint->gn = temp_gn;
4732
4733 temppoint->parent = curpoint;
4734 curpoint->child = temppoint;
4735
4736 gts_eheap_update(openlist);
4737 }
4738 }else{
4739 temppoint->parent = curpoint;
4740 curpoint->child = temppoint;
4741
4742 temppoint->gcost = temp_g_cost;
4743 temppoint->gn = temp_gn;
4744
4745 temppoint->hcost = simple_h_cost(r, temppoint, destv);
4746 // if(cur_layer != dest_layer) temppoint->hcost += r->viacost;
4747 gts_eheap_insert(openlist, temppoint);
4748 }
4749
4750 }
4751 i = i->next;
4752 }
4753 g_list_free(candidatepoints);
4754
4755 }
4756 #ifdef DEBUG_ROUTE
4757 printf("ROUTE: could not find path!\n");
4758 #endif
4759
4760 data->score = INFINITY;
4761 clean_routing_edges(r, data);
4762
4763 data->path = NULL;
4764 //TOPOROUTER_VERTEX(data->src->point)->parent = NULL;
4765 //TOPOROUTER_VERTEX(data->src->point)->child = NULL;
4766 goto routing_return;
4767
4768 /*
4769 {
4770 int i;
4771 for(i=0;i<groupcount();i++) {
4772 char buffer[256];
4773 sprintf(buffer, "route-error-%d-%d.png", r->routecount, i);
4774 toporouter_draw_surface(r, r->layers[i].surface, buffer, 1280, 1280, 2, data, i, NULL);
4775 }
4776 r->routecount++;
4777 }
4778 // exit(0);
4779 */
4780 route_finish:
4781 // printf(" * finished a*\n");
4782 /*
4783 {
4784 int i;
4785 for(i=0;i<groupcount();i++) {
4786 char buffer[256];
4787 sprintf(buffer, "route-preclean-%d-%d.png", i, r->routecount);
4788 toporouter_draw_surface(r, r->layers[i].surface, buffer, 1024, 1024, 2, data, i, NULL);
4789 }
4790 r->routecount++;
4791 }
4792 */
4793 /* {
4794 i = data->path;
4795 while(i) {
4796 toporouter_vertex_t *tv = TOPOROUTER_VERTEX(i->data);
4797
4798 if(tv->routingedge) {
4799 GList *list = g_list_find(edge_routing(tv->routingedge), tv);
4800 toporouter_vertex_t *restartv = NULL, *boxpoint;
4801
4802 g_assert(list);
4803
4804 if(!list->next) {
4805 if(vertex_bbox(tedge_v2(tv->routingedge)))
4806 boxpoint = TOPOROUTER_VERTEX(vertex_bbox(tedge_v2(tv->routingedge))->point);
4807 else
4808 boxpoint = NULL;
4809
4810 if(tedge_v2(tv->routingedge) != srcv && g_list_find(data->srcvertices, tedge_v2(tv->routingedge)))
4811 restartv = tedge_v2(tv->routingedge);
4812 else if(boxpoint != srcv && g_list_find(data->srcvertices, boxpoint))
4813 restartv = boxpoint;
4814 }
4815
4816 if(!list->prev) {
4817 if(vertex_bbox(tedge_v1(tv->routingedge)))
4818 boxpoint = TOPOROUTER_VERTEX(vertex_bbox(tedge_v1(tv->routingedge))->point);
4819 else
4820 boxpoint = NULL;
4821
4822 if(tedge_v1(tv->routingedge) != srcv && g_list_find(data->srcvertices, tedge_v1(tv->routingedge)))
4823 restartv = tedge_v1(tv->routingedge);
4824 else if(boxpoint != srcv && g_list_find(data->srcvertices, boxpoint))
4825 restartv = boxpoint;
4826
4827 }
4828
4829 if(restartv) {
4830 clean_routing_edges(r, data);
4831 gts_eheap_destroy(openlist);
4832 g_list_free(closelist);
4833 openlist = gts_eheap_new(route_heap_cmp, NULL);
4834 closelist = NULL;
4835 g_list_free(data->path);
4836 printf("ROUTING RESTARTING with new src %f,%f,%f\n", vx(restartv), vy(restartv), vz(restartv));
4837 curpoint = restartv;
4838 goto route_begin;
4839 }
4840 }
4841
4842 i = i->next;
4843 }
4844 }*/
4845 ///*
4846 {
4847 toporouter_vertex_t *pv = NULL;
4848 GList *i = data->path;
4849 while(i) {
4850 toporouter_vertex_t *tv = TOPOROUTER_VERTEX(i->data);
4851
4852 if(pv && g_list_find(data->srcvertices, tv)) {
4853 GList *temp = g_list_copy(i);
4854 g_list_free(data->path);
4855 data->path = temp;
4856 i = data->path;
4857 }
4858 pv = tv;
4859 i = i->next;
4860 }
4861 }
4862 //*/
4863 {
4864 toporouter_vertex_t *pv = NULL;
4865 GList *i = data->path;
4866 while(i) {
4867 toporouter_vertex_t *tv = TOPOROUTER_VERTEX(i->data);
4868 if(tv->flags & VERTEX_FLAG_TEMP) {
4869 tv->flags ^= VERTEX_FLAG_TEMP;
4870 tv->flags |= VERTEX_FLAG_ROUTE;
4871 }
4872 if(pv) pv->child = tv;
4873
4874 if(tv->routingedge) tv->route = data;
4875
4876 // if(tv->routingedge && !TOPOROUTER_IS_CONSTRAINT(tv->routingedge)) space_edge(tv->routingedge, NULL);
4877
4878 pv = tv;
4879 i = i->next;
4880 }
4881 }
4882
4883 {
4884 toporouter_vertex_t *pv = NULL, *v = NULL;
4885
4886 GList *i = data->path;
4887 while(i) {
4888 v = TOPOROUTER_VERTEX(i->data);
4889
4890 if(pv) {
4891 v->parent = pv;
4892 pv->child = v;
4893 }else{
4894 v->parent = NULL;
4895 }
4896
4897 pv = v;
4898 i = i->next;
4899 }
4900
4901 if(v) v->child = NULL;
4902 }
4903
4904 clean_routing_edges(r, data);
4905 // /*
4906 {
4907 GList *i = data->path;
4908 while(i) {
4909 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
4910
4911 if(v->routingedge && !TOPOROUTER_IS_CONSTRAINT(v->routingedge))
4912 space_edge(v->routingedge, NULL);
4913 i = i->next;
4914 }
4915 }
4916 // */
4917 routing_return:
4918
4919 g_list_free(data->destvertices);
4920 g_list_free(data->srcvertices);
4921 data->destvertices = NULL;
4922 data->srcvertices = NULL;
4923 gts_eheap_destroy(openlist);
4924 g_list_free(closelist);
4925
4926 data->alltemppoints = NULL;
4927
4928 return rval;
4929 }
4930
4931 /* moves vertex v d units in the direction of vertex p */
4932 void
4933 vertex_move_towards_vertex (GtsVertex *v,
4934 GtsVertex *p,
4935 double d)
4936 {
4937 double theta = atan2 (GTS_POINT(p)->y - GTS_POINT(v)->y,
4938 GTS_POINT(p)->x - GTS_POINT(v)->x);
4939
4940 GTS_POINT(v)->x += d * cos (theta);
4941 GTS_POINT(v)->y += d * sin (theta);
4942 }
4943
4944
4945 gdouble
4946 pathvertex_arcing_through_constraint(toporouter_vertex_t *pathv, toporouter_vertex_t *arcv)
4947 {
4948 toporouter_vertex_t *v = pathv->child;
4949
4950 if(!v || !v->routingedge) return 0.;
4951
4952 while(v->flags & VERTEX_FLAG_ROUTE && (tedge_v1(v->routingedge) == arcv || tedge_v2(v->routingedge) == arcv)) {
4953 if(TOPOROUTER_IS_CONSTRAINT(v->routingedge))
4954 return gts_point_distance(GTS_POINT(tedge_v1(v->routingedge)), GTS_POINT(tedge_v2(v->routingedge)));
4955 v = v->child;
4956 }
4957
4958 v = pathv->parent;
4959 while(v->flags & VERTEX_FLAG_ROUTE && (tedge_v1(v->routingedge) == arcv || tedge_v2(v->routingedge) == arcv)) {
4960 if(TOPOROUTER_IS_CONSTRAINT(v->routingedge))
4961 return gts_point_distance(GTS_POINT(tedge_v1(v->routingedge)), GTS_POINT(tedge_v2(v->routingedge)));
4962 v = v->parent;
4963 }
4964
4965 return 0.;
4966 }
4967
4968 gint
4969 vertices_connected(toporouter_vertex_t *a, toporouter_vertex_t *b)
4970 {
4971 return ((a->route->netlist == b->route->netlist && a->route->src->c == b->route->src->c) ? 1 : 0);
4972 }
4973
4974 gdouble
4975 edge_min_spacing(GList *list, toporouter_edge_t *e, toporouter_vertex_t *v, guint debug)
4976 {
4977 toporouter_vertex_t *origin;
4978 GList *i = list;
4979 gdouble space = 0.;
4980 toporouter_vertex_t *nextv, *prevv;
4981 //toporouter_vertex_t *edgev;
4982 //gdouble constraint_spacing;
4983
4984 if(!list) return INFINITY;
4985
4986 // printf("\t CMS %f,%f - %f,%f\n", vx(tedge_v1(e)), vy(tedge_v1(e)), vx(tedge_v2(e)), vy(tedge_v2(e)));
4987
4988 prevv = origin = TOPOROUTER_VERTEX(list->data);
4989
4990 // print_edge(e);
4991
4992 i = list;
4993 if(gts_point_distance2(GTS_POINT(origin), GTS_POINT(edge_v1(e))) < gts_point_distance2(GTS_POINT(v), GTS_POINT(edge_v1(e)))) {
4994
4995 /* towards v2 */
4996 while(i) {
4997 nextv = edge_routing_next(e, i);
4998 if(nextv->route && vertices_connected(nextv, prevv)) { i = i->next; continue; }
4999 if(!(nextv->flags & VERTEX_FLAG_TEMP)) {
5000 gdouble ms = min_spacing(prevv, nextv);
5001 if(nextv == tedge_v2(e)) {
5002 gdouble cms = pathvertex_arcing_through_constraint(TOPOROUTER_VERTEX(i->data), tedge_v2(e));
5003 // printf("\t CMS to %f,%f = %f \t ms = %f\n", vx(tedge_v2(e)), vy(tedge_v2(e)), cms, ms);
5004 // if(vx(tedge_v2(e)) > -EPSILON && vx(tedge_v2(e)) < EPSILON) {
5005 // printf("\t\tPROB: ");
5006 // print_vertex(tedge_v2(e));
5007 // }
5008 if(cms > EPSILON) space += MIN(ms, cms / 2.);
5009 else space += ms;
5010 } else
5011 space += ms;
5012
5013 prevv = nextv;
5014 }
5015 // printf("%f ", space);
5016 i = i->next;
5017 }
5018 }else{
5019
5020 /* towards v1 */
5021 while(i) {
5022 nextv = edge_routing_prev(e, i);
5023 if(nextv->route && vertices_connected(nextv, prevv)) { i = i->prev; continue; }
5024 if(!(nextv->flags & VERTEX_FLAG_TEMP)) {
5025 gdouble ms = min_spacing(prevv, nextv);
5026 if(nextv == tedge_v1(e)) {
5027 gdouble cms = pathvertex_arcing_through_constraint(TOPOROUTER_VERTEX(i->data), tedge_v1(e));
5028 // printf("\t CMS to %f,%f = %f \t ms = %f\n", vx(tedge_v1(e)), vy(tedge_v1(e)), cms, ms);
5029 // if(vx(tedge_v1(e)) > -EPSILON && vx(tedge_v1(e)) < EPSILON) {
5030 // printf("\t\tPROB: ");
5031 // print_vertex(tedge_v1(e));
5032 // }
5033 if(cms > EPSILON) space += MIN(ms, cms / 2.);
5034 else space += ms;
5035 } else
5036 space += ms;
5037
5038 prevv = nextv;
5039 }
5040 // printf("%f ", space);
5041 i = i->prev;
5042 }
5043 }
5044
5045 if(TOPOROUTER_IS_CONSTRAINT(e) && space > gts_point_distance(GTS_POINT(edge_v1(e)), GTS_POINT(edge_v2(e))) / 2.)
5046 space = gts_point_distance(GTS_POINT(edge_v1(e)), GTS_POINT(edge_v2(e))) / 2.;
5047
5048 // if(debug) printf("\tedge_min_spacing: %f\n", space);
5049 return space;
5050 }
5051
5052 /* line segment is 1 & 2, point is 3
5053 returns 0 if v3 is outside seg
5054 */
5055 guint
5056 vertex_line_normal_intersection(gdouble x1, gdouble y1, gdouble x2, gdouble y2, gdouble x3, gdouble y3, gdouble *x, gdouble *y)
5057 {
5058 gdouble m1 = cartesian_gradient(x1,y1,x2,y2);
5059 gdouble m2 = perpendicular_gradient(m1);
5060 gdouble c2 = (isinf(m2)) ? x3 : y3 - (m2 * x3);
5061 gdouble c1 = (isinf(m1)) ? x1 : y1 - (m1 * x1);
5062
5063 if(isinf(m2))
5064 *x = x3;
5065 else if(isinf(m1))
5066 *x = x1;
5067 else
5068 *x = (c2 - c1) / (m1 - m2);
5069
5070 *y = (isinf(m2)) ? y1 : (m2 * (*x)) + c2;
5071
5072 if(*x >= MIN(x1,x2) - EPSILON && *x <= MAX(x1,x2) + EPSILON && *y >= MIN(y1,y2) - EPSILON && *y <= MAX(y1,y2) + EPSILON)
5073 return 1;
5074 return 0;
5075 }
5076
5077 void
5078 print_toporouter_arc(toporouter_arc_t *arc)
5079 {
5080 // GList *i = arc->vs;
5081
5082 printf("ARC CENTRE: %f,%f ", vx(arc->centre), vy(arc->centre));// print_vertex(arc->centre);
5083 printf("RADIUS: %f", arc->r);
5084
5085 if(arc->dir>0) printf(" COUNTERCLOCKWISE ");
5086 else if(arc->dir<0) printf(" CLOCKWISE ");
5087 else printf(" COLINEAR(ERROR) ");
5088 /*
5089 printf("\n\tVS: ");
5090
5091 while(i) {
5092 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
5093 printf("%f,%f ", vx(v), vy(v));
5094
5095 i = i->next;
5096 }
5097 */
5098 }
5099
5100 void
5101 toporouter_arc_remove(toporouter_oproute_t *oproute, toporouter_arc_t *arc)
5102 {
5103 oproute->arcs = g_list_remove(oproute->arcs, arc);
5104
5105 if(arc->v) arc->v->arc = NULL;
5106 }
5107
5108 toporouter_arc_t *
5109 toporouter_arc_new(toporouter_oproute_t *oproute, toporouter_vertex_t *v1, toporouter_vertex_t *v2, toporouter_vertex_t *centre, gdouble r, gint dir)
5110 {
5111 toporouter_arc_t *arc = TOPOROUTER_ARC(gts_object_new(GTS_OBJECT_CLASS(toporouter_arc_class())));
5112 arc->centre = centre;
5113 arc->v = v1;
5114 arc->v1 = v1;
5115 arc->v2 = v2;
5116 arc->r = r;
5117 arc->dir = dir;
5118
5119 if(v1) v1->arc = arc;
5120 arc->oproute = oproute;
5121
5122 arc->clearance = NULL;
5123
5124 return arc;
5125 }
5126
5127 void
5128 path_set_oproute(GList *path, toporouter_oproute_t *oproute)
5129 {
5130 while(path) {
5131 toporouter_vertex_t *v = TOPOROUTER_VERTEX(path->data);
5132
5133 if(v->flags & VERTEX_FLAG_ROUTE)
5134 v->oproute = oproute;
5135
5136 path = path->next;
5137 }
5138 }
5139
5140 void
5141 print_oproute(toporouter_oproute_t *oproute)
5142 {
5143 GList *i = oproute->arcs;
5144
5145 printf("Optimized Route:\n");
5146 printf("\tNetlist:\t\t%s\n\tStyle:\t\t%s\n", oproute->netlist, oproute->style);
5147 // printf("%s\n", oproute->netlist);
5148 /*
5149 i = oproute->term1->zlink;
5150 while(i) {
5151 toporouter_vertex_t *thisv = TOPOROUTER_VERTEX(i->data);
5152 printf("\tNetlist:\t\t%s\n\tStyle:\t\t%s\n", vertex_bbox(thisv)->netlist, vertex_bbox(thisv)->style);
5153 i = i->next;
5154 }
5155 */
5156 printf("\t"); print_vertex(oproute->term1); printf("\n");
5157 i = oproute->arcs;
5158 while(i) {
5159 toporouter_arc_t *arc = (toporouter_arc_t *)i->data;
5160 printf("\t"); print_toporouter_arc(arc); printf("\n");
5161 i = i->next;
5162 }
5163 printf("\t"); print_vertex(oproute->term2); printf("\n");
5164 }
5165
5166 gdouble
5167 export_pcb_drawline(guint layer, guint x0, guint y0, guint x1, guint y1, guint thickness, guint keepaway)
5168 {
5169 gdouble d = 0.;
5170 LineType *line;
5171 line = CreateDrawnLineOnLayer( LAYER_PTR(layer), x0, y0, x1, y1,
5172 thickness, keepaway,
5173 MakeFlags (AUTOFLAG | (TEST_FLAG (CLEARNEWFLAG, PCB) ? CLEARLINEFLAG : 0)));
5174
5175 if(line) {
5176 AddObjectToCreateUndoList (LINE_TYPE, LAYER_PTR(layer), line, line);
5177 d = coord_distance((double)x0, (double)y0, (double)x1, (double)y1);
5178 }
5179 return d;
5180 }
5181
5182 gdouble
5183 arc_angle(toporouter_arc_t *arc)
5184 {
5185 gdouble x0, x1, y0, y1;
5186
5187 x0 = arc->x0 - vx(arc->centre);
5188 x1 = arc->x1 - vx(arc->centre);
5189 y0 = arc->y0 - vy(arc->centre);
5190 y1 = arc->y1 - vy(arc->centre);
5191
5192 return fabs(acos(((x0*x1)+(y0*y1))/(sqrt(pow(x0,2)+pow(y0,2))*sqrt(pow(x1,2)+pow(y1,2)))));
5193 }
5194
5195 gdouble
5196 export_pcb_drawarc(guint layer, toporouter_arc_t *a, guint thickness, guint keepaway)
5197 {
5198 gdouble sa, da, theta;
5199 gdouble d = 0.;
5200 ArcType *arc;
5201 gint wind;
5202
5203 wind = coord_wind(a->x0, a->y0, a->x1, a->y1, vx(a->centre), vy(a->centre));
5204
5205 /* NB: PCB's arcs have a funny coorindate system, with 0 degrees as the -ve X axis (left),
5206 * continuing clockwise, with +90 degrees being along the +ve Y axis (bottom). Because
5207 * Y+ points down, our internal angles increase clockwise from the +ve X axis.
5208 */
5209 sa = (M_PI - coord_angle (vx (a->centre), vy (a->centre), a->x0, a->y0)) * 180. / M_PI;
5210
5211 theta = arc_angle(a);
5212
5213 if(!a->dir || !wind) return 0.;
5214
5215 if(a->dir != wind) theta = 2. * M_PI - theta;
5216
5217 da = -a->dir * theta * 180. / M_PI;
5218
5219 if(da < 1. && da > -1.) return 0.;
5220 if(da > 359. || da < -359.) return 0.;
5221
5222 arc = CreateNewArcOnLayer(LAYER_PTR(layer), vx(a->centre), vy(a->centre), a->r, a->r,
5223 sa, da, thickness, keepaway,
5224 MakeFlags( AUTOFLAG | (TEST_FLAG (CLEARNEWFLAG, PCB) ? CLEARLINEFLAG : 0)));
5225
5226 if(arc) {
5227 AddObjectToCreateUndoList( ARC_TYPE, LAYER_PTR(layer), arc, arc);
5228 d = a->r * theta;
5229 }
5230
5231 return d;
5232 }
5233
5234 void
5235 calculate_term_to_arc(toporouter_vertex_t *v, toporouter_arc_t *arc, guint dir)
5236 {
5237 gdouble theta, a, b, bx, by, a0x, a0y, a1x, a1y;
5238 gint winddir;
5239
5240 theta = acos(arc->r / gts_point_distance(GTS_POINT(v), GTS_POINT(arc->centre)));
5241 a = arc->r * sin(theta);
5242 b = arc->r * cos(theta);
5243 #ifdef DEBUG_EXPORT
5244 printf("drawing arc with r %f theta %f d %f centre = %f,%f\n", arc->r, theta, gts_point_distance(GTS_POINT(v), GTS_POINT(arc->centre)), vx(arc->centre), vy(arc->centre));
5245 #endif
5246 point_from_point_to_point(arc->centre, v, b, &bx, &by);
5247
5248 coords_on_line(bx, by, perpendicular_gradient(point_gradient(GTS_POINT(v), GTS_POINT(arc->centre))), a, &a0x, &a0y, &a1x, &a1y);
5249
5250 winddir = coord_wind(vx(v), vy(v), a0x, a0y, vx(arc->centre), vy(arc->centre));
5251
5252 if(!winddir) {
5253 printf("!winddir @ v %f,%f arc->centre %f,%f\n", vx(v), vy(v), vx(arc->centre), vy(arc->centre));
5254 //TODO: fix hack: this shouldn't happen
5255 arc->x0 = vx(v);
5256 arc->y0 = vy(v);
5257 arc->x1 = vx(v);
5258 arc->y1 = vy(v);
5259 return;
5260 }
5261
5262 g_assert(winddir);
5263
5264 if(dir) winddir = -winddir;
5265
5266 if(winddir == arc->dir) {
5267 if(!dir) { arc->x0 = a0x; arc->y0 = a0y; }
5268 else{ arc->x1 = a0x; arc->y1 = a0y; }
5269 }else{
5270 if(!dir) { arc->x0 = a1x; arc->y0 = a1y; }
5271 else{ arc->x1 = a1x; arc->y1 = a1y; }
5272 }
5273
5274 }
5275
5276
5277
5278 // b1 is the projection in the direction of narc, while b2 is the perpendicular projection
5279 void
5280 arc_ortho_projections(toporouter_arc_t *arc, toporouter_arc_t *narc, gdouble *b1, gdouble *b2)
5281 {
5282 gdouble nax, nay, ax, ay, alen2, c;
5283 gdouble b1x, b1y, b2x, b2y;
5284
5285 #ifdef DEBUG_EXPORT
5286 printf("arc c = %f,%f narc c = %f,%f arc->0 = %f,%f\n",
5287 vx(arc->centre), vy(arc->centre),
5288 vx(narc->centre), vy(narc->centre),
5289 arc->x0, arc->y0);
5290 #endif
5291
5292 nax = vx(narc->centre) - vx(arc->centre);
5293 nay = vy(narc->centre) - vy(arc->centre);
5294 alen2 = pow(nax,2) + pow(nay,2);
5295
5296
5297 ax = arc->x0 - vx(arc->centre);
5298 ay = arc->y0 - vy(arc->centre);
5299
5300 #ifdef DEBUG_EXPORT
5301 printf("norm narc = %f,%f - %f\tA=%f,%f\n", nax, nay, sqrt(alen2), ax, ay);
5302 #endif
5303
5304 c = ((ax*nax)+(ay*nay)) / alen2;
5305
5306 b1x = c * nax;
5307 b1y = c * nay;
5308 b2x = ax - b1x;
5309 b2y = ay - b1y;
5310
5311 #ifdef DEBUG_EXPORT
5312 printf("proj = %f,%f perp proj = %f,%f\n", b1x, b1y, b2x, b2y);
5313 #endif
5314
5315 *b1 = sqrt(pow(b1x,2) + pow(b1y,2));
5316 *b2 = sqrt(pow(b2x,2) + pow(b2y,2));
5317
5318 }
5319
5320 guint
5321 calculate_arc_to_arc(toporouter_t *ar, toporouter_arc_t *parc, toporouter_arc_t *arc)
5322 {
5323 gdouble theta, a, b, bx, by, a0x, a0y, a1x, a1y, m, preva, prevb;
5324 gint winddir;
5325 toporouter_arc_t *bigr, *smallr;
5326
5327 if(parc->r > arc->r) {
5328 bigr = parc; smallr = arc;
5329 }else{
5330 bigr = arc; smallr = parc;
5331 }
5332 #ifdef DEBUG_EXPORT
5333 printf("bigr centre = %f,%f smallr centre = %f,%f\n", vx(bigr->centre), vy(bigr->centre),
5334 vx(smallr->centre), vy(smallr->centre));
5335 #endif
5336
5337 m = perpendicular_gradient(point_gradient(GTS_POINT(bigr->centre), GTS_POINT(smallr->centre)));
5338
5339 if(bigr->centre == smallr->centre) {
5340
5341 printf("bigr->centre == smallr->centre @ %f,%f\n", vx(smallr->centre), vy(smallr->centre));
5342 }
5343
5344 g_assert(bigr->centre != smallr->centre);
5345
5346 if(parc->dir == arc->dir) {
5347 //export_arc_straight:
5348
5349 theta = acos((bigr->r - smallr->r) / gts_point_distance(GTS_POINT(bigr->centre), GTS_POINT(smallr->centre)));
5350 a = bigr->r * sin(theta);
5351 b = bigr->r * cos(theta);
5352
5353 point_from_point_to_point(bigr->centre, smallr->centre, b, &bx, &by);
5354
5355 coords_on_line(bx, by, m, a, &a0x, &a0y, &a1x, &a1y);
5356
5357 winddir = coord_wind(vx(smallr->centre), vy(smallr->centre), a0x, a0y, vx(bigr->centre), vy(bigr->centre));
5358
5359 arc_ortho_projections(parc, arc, &prevb, &preva);
5360 //#ifdef DEBUG_EXPORT
5361 if(!winddir) {
5362
5363 printf("STRAIGHT:\n");
5364 printf("bigr centre = %f,%f smallr centre = %f,%f\n", vx(bigr->centre), vy(bigr->centre),
5365 vx(smallr->centre), vy(smallr->centre));
5366 printf("theta = %f a = %f b = %f bigrr = %f d = %f po = %f\n", theta, a, b, bigr->r,
5367 gts_point_distance(GTS_POINT(bigr->centre), GTS_POINT(smallr->centre)),
5368 bigr->r / gts_point_distance(GTS_POINT(bigr->centre), GTS_POINT(smallr->centre)));
5369 printf("bigr-r = %f smallr-r = %f ratio = %f\n",
5370 bigr->r, smallr->r, (bigr->r - smallr->r) / gts_point_distance(GTS_POINT(bigr->centre), GTS_POINT(smallr->centre)));
5371 printf("preva = %f prevb = %f\n\n", preva, prevb);
5372
5373 }
5374 //#endif
5375 g_assert(winddir);
5376
5377 if(bigr==parc) winddir = -winddir;
5378
5379 if(winddir == bigr->dir) {
5380 if(bigr==arc) {
5381 bigr->x0 = a0x;
5382 bigr->y0 = a0y;
5383 }else{
5384 bigr->x1 = a0x;
5385 bigr->y1 = a0y;
5386 }
5387 }else{
5388 if(bigr==arc) {
5389 bigr->x0 = a1x;
5390 bigr->y0 = a1y;
5391 }else{
5392 bigr->x1 = a1x;
5393 bigr->y1 = a1y;
5394 }
5395 }
5396
5397 a = smallr->r * sin(theta);
5398 b = smallr->r * cos(theta);
5399
5400 #ifdef DEBUG_EXPORT
5401 printf("a = %f b = %f\n", a, b);
5402 #endif
5403 point_from_point_to_point(smallr->centre, bigr->centre, -b, &bx, &by);
5404
5405 coords_on_line(bx, by, m, a, &a0x, &a0y, &a1x, &a1y);
5406
5407 if(winddir == bigr->dir) {
5408 if(bigr==arc) {
5409 smallr->x1 = a0x;
5410 smallr->y1 = a0y;
5411 }else{
5412 smallr->x0 = a0x;
5413 smallr->y0 = a0y;
5414 }
5415 }else{
5416 if(bigr==arc) {
5417 smallr->x1 = a1x;
5418 smallr->y1 = a1y;
5419 }else{
5420 smallr->x0 = a1x;
5421 smallr->y0 = a1y;
5422 }
5423 }
5424
5425 }else{
5426
5427 //export_arc_twist:
5428
5429 theta = acos((bigr->r + smallr->r) / gts_point_distance(GTS_POINT(bigr->centre), GTS_POINT(smallr->centre)));
5430 a = bigr->r * sin(theta);
5431 b = bigr->r * cos(theta);
5432
5433 point_from_point_to_point(bigr->centre, smallr->centre, b, &bx, &by);
5434
5435 coords_on_line(bx, by, m, a, &a0x, &a0y, &a1x, &a1y);
5436
5437 winddir = coord_wind(vx(smallr->centre), vy(smallr->centre), a0x, a0y, vx(bigr->centre), vy(bigr->centre));
5438 //#ifdef DEBUG_EXPORT
5439 if(!winddir) {
5440 printf("TWIST:\n");
5441 printf("theta = %f a = %f b = %f r = %f d = %f po = %f\n", theta, a, b, bigr->r + smallr->r,
5442 gts_point_distance(GTS_POINT(bigr->centre), GTS_POINT(smallr->centre)),
5443 (bigr->r+smallr->r) / gts_point_distance(GTS_POINT(bigr->centre), GTS_POINT(smallr->centre)));
5444
5445 printf("bigr centre = %f,%f smallr centre = %f,%f\n\n", vx(bigr->centre), vy(bigr->centre),
5446 vx(smallr->centre), vy(smallr->centre));
5447
5448 printf("big wind = %d small wind = %d\n", bigr->dir, smallr->dir);
5449 return 1;
5450 }
5451 //#endif
5452 /* if(!winddir) {
5453 smallr->centre->flags |= VERTEX_FLAG_RED;
5454 bigr->centre->flags |= VERTEX_FLAG_GREEN;
5455 //bigr->centre->flags |= VERTEX_FLAG_RED;
5456 {
5457 int i;
5458 for(i=0;i<groupcount();i++) {
5459 char buffer[256];
5460 sprintf(buffer, "wind%d.png", i);
5461 toporouter_draw_surface(ar, ar->layers[i].surface, buffer, 2096, 2096, 2, NULL, i, NULL);
5462 }
5463 }
5464 return;
5465 }
5466 */
5467 g_assert(winddir);
5468
5469 if(bigr==parc) winddir = -winddir;
5470
5471 if(winddir == bigr->dir) {
5472 if(bigr==arc) {
5473 bigr->x0 = a0x;
5474 bigr->y0 = a0y;
5475 }else{
5476 bigr->x1 = a0x;
5477 bigr->y1 = a0y;
5478 }
5479 }else{
5480 if(bigr==arc) {
5481 bigr->x0 = a1x;
5482 bigr->y0 = a1y;
5483 }else{
5484 bigr->x1 = a1x;
5485 bigr->y1 = a1y;
5486 }
5487 }
5488
5489 a = smallr->r * sin(theta);
5490 b = smallr->r * cos(theta);
5491
5492 point_from_point_to_point(smallr->centre, bigr->centre, b, &bx, &by);
5493
5494 coords_on_line(bx, by, m, a, &a0x, &a0y, &a1x, &a1y);
5495
5496 winddir = coord_wind(vx(smallr->centre), vy(smallr->centre), a0x, a0y, vx(bigr->centre), vy(bigr->centre));
5497
5498 g_assert(winddir);
5499
5500 if(bigr==parc) winddir = -winddir;
5501
5502 if(winddir == smallr->dir) {
5503 if(bigr==arc) {
5504 smallr->x1 = a0x;
5505 smallr->y1 = a0y;
5506 }else{
5507 smallr->x0 = a0x;
5508 smallr->y0 = a0y;
5509 }
5510 }else{
5511 if(bigr==arc) {
5512 smallr->x1 = a1x;
5513 smallr->y1 = a1y;
5514 }else{
5515 smallr->x0 = a1x;
5516 smallr->y0 = a1y;
5517 }
5518 }
5519
5520 }
5521
5522 return 0;
5523 }
5524
5525 void
5526 export_oproutes(toporouter_t *ar, toporouter_oproute_t *oproute)
5527 {
5528 guint layer = PCB->LayerGroups.Entries[oproute->layergroup][0];
5529 guint thickness = lookup_thickness(oproute->style);
5530 guint keepaway = lookup_keepaway(oproute->style);
5531 GList *arcs = oproute->arcs;
5532 toporouter_arc_t *arc, *parc = NULL;
5533
5534 if(!arcs) {
5535 ar->wiring_score += export_pcb_drawline(layer, vx(oproute->term1), vy(oproute->term1), vx(oproute->term2), vy(oproute->term2), thickness, keepaway);
5536 return;
5537 }
5538
5539
5540 // calculate_term_to_arc(oproute->term1, TOPOROUTER_ARC(arcs->data), 0, layer);
5541
5542 while(arcs) {
5543 arc = TOPOROUTER_ARC(arcs->data);
5544
5545 if(parc && arc) {
5546 ar->wiring_score += export_pcb_drawarc(layer, parc, thickness, keepaway);
5547 ar->wiring_score += export_pcb_drawline(layer, parc->x1, parc->y1, arc->x0, arc->y0, thickness, keepaway);
5548 }else if(!parc) {
5549 ar->wiring_score += export_pcb_drawline(layer, vx(oproute->term1), vy(oproute->term1), arc->x0, arc->y0, thickness, keepaway);
5550 }
5551
5552 parc = arc;
5553 arcs = arcs->next;
5554 }
5555 ar->wiring_score += export_pcb_drawarc(layer, arc, thickness, keepaway);
5556 ar->wiring_score += export_pcb_drawline(layer, arc->x1, arc->y1, vx(oproute->term2), vy(oproute->term2), thickness, keepaway);
5557
5558 }
5559
5560
5561
5562 void
5563 oproute_free(toporouter_oproute_t *oproute)
5564 {
5565 GList *i = oproute->arcs;
5566 while(i) {
5567 toporouter_arc_t *arc = (toporouter_arc_t *) i->data;
5568 if(arc->centre->flags & VERTEX_FLAG_TEMP)
5569 gts_object_destroy(GTS_OBJECT(arc->centre));
5570
5571 i = i->next;
5572 }
5573
5574 g_list_free(oproute->arcs);
5575 free(oproute);
5576 }
5577
5578 void
5579 oproute_calculate_tof(toporouter_oproute_t *oproute)
5580 {
5581 GList *arcs = oproute->arcs;
5582 toporouter_arc_t *parc = NULL, *arc;
5583
5584 oproute->tof = 0.;
5585
5586 if(!arcs) {
5587 oproute->tof = gts_point_distance(GTS_POINT(oproute->term1), GTS_POINT(oproute->term2));
5588 return;
5589 }
5590
5591 while(arcs) {
5592 arc = TOPOROUTER_ARC(arcs->data);
5593
5594 if(parc && arc) {
5595 oproute->tof += arc_angle(parc) * parc->r;
5596 oproute->tof += sqrt(pow(parc->x1-arc->x0,2)+pow(parc->y1-arc->y0,2));
5597 }else if(!parc) {
5598 oproute->tof += sqrt(pow(arc->x0-vx(oproute->term1),2)+pow(arc->y0-vy(oproute->term1),2));
5599 }
5600
5601 parc = arc;
5602 arcs = arcs->next;
5603 }
5604
5605 oproute->tof += arc_angle(parc) * parc->r;
5606 oproute->tof += sqrt(pow(arc->x1-vx(oproute->term2),2)+pow(arc->y1-vy(oproute->term2),2));
5607
5608 }
5609
5610 gdouble
5611 line_line_distance_at_normal(
5612 gdouble line1_x1, gdouble line1_y1,
5613 gdouble line1_x2, gdouble line1_y2,
5614 gdouble line2_x1, gdouble line2_y1,
5615 gdouble line2_x2, gdouble line2_y2,
5616 gdouble x, gdouble y)
5617 {
5618 gdouble m1 = perpendicular_gradient(cartesian_gradient(line1_x1, line1_y1, line1_x2, line1_y2));
5619 gdouble m2 = cartesian_gradient(line2_x1, line2_y1, line2_x2, line2_y2);
5620 gdouble c1 = (isinf(m1)) ? x : y - (m1 * x);
5621 gdouble c2 = (isinf(m2)) ? line2_x1 : line2_y1 - (m2 * line2_x1);
5622
5623 gdouble intx, inty;
5624
5625 if(isinf(m2)) intx = line2_x1;
5626 else if(isinf(m1)) intx = x;
5627 else intx = (c2 - c1) / (m1 - m2);
5628
5629 inty = (isinf(m2)) ? (m1 * intx) + c1 : (m2 * intx) + c2;
5630
5631 return sqrt(pow(x-intx,2)+pow(y-inty,2));
5632 }
5633
5634 void
5635 calculate_serpintine(gdouble delta, gdouble r, gdouble initiala, gdouble *a, guint *nhalfcycles)
5636 {
5637 gdouble lhalfcycle = 2.*(initiala-r)+(M_PI*r);
5638 guint n;
5639
5640 printf("lhalfcycle = %f r = %f\n", lhalfcycle, r);
5641
5642 n = (delta - M_PI*r) / (lhalfcycle - 2.*r) + 1;
5643 *a = (delta + 4.*n*r - n*M_PI*r + 4.*r - M_PI*r)/(2.*n);
5644 *nhalfcycles = n;
5645 }
5646
5647 gdouble
5648 oproute_min_spacing(toporouter_oproute_t *a, toporouter_oproute_t *b)
5649 {
5650 return lookup_thickness(a->style) / 2. + lookup_thickness(b->style) / 2. + MAX(lookup_keepaway(a->style), lookup_keepaway(b->style));
5651 }
5652
5653 gdouble
5654 vector_angle(gdouble ox, gdouble oy, gdouble ax, gdouble ay, gdouble bx, gdouble by)
5655 {
5656 gdouble alen = sqrt(pow(ax-ox,2)+pow(ay-oy,2));
5657 gdouble blen = sqrt(pow(bx-ox,2)+pow(by-oy,2));
5658 return acos( ((ax-ox)*(bx-ox)+(ay-oy)*(by-oy)) / (alen * blen) );
5659 }
5660
5661 toporouter_serpintine_t *
5662 toporouter_serpintine_new(gdouble x, gdouble y, gdouble x0, gdouble y0, gdouble x1, gdouble y1, gpointer start, gdouble halfa, gdouble
5663 radius, guint nhalfcycles)
5664 {
5665 toporouter_serpintine_t *serp = (toporouter_serpintine_t *)malloc(sizeof(toporouter_serpintine_t));
5666 serp->x = x;
5667 serp->y = y;
5668 serp->x0 = x0;
5669 serp->y0 = y0;
5670 serp->x1 = x1;
5671 serp->y1 = y1;
5672 serp->start = start;
5673 serp->halfa = halfa;
5674 serp->radius = radius;
5675 serp->nhalfcycles = nhalfcycles;
5676 serp->arcs = NULL;
5677 return serp;
5678 }
5679
5680 //#define DEBUG_RUBBERBAND 1
5681
5682 gdouble
5683 check_non_intersect_vertex(gdouble x0, gdouble y0, gdouble x1, gdouble y1, toporouter_vertex_t *pathv, toporouter_vertex_t *arcv,
5684 toporouter_vertex_t *opv, gint wind, gint *arcwind, gdouble *arcr, guint debug)
5685 {
5686 gdouble ms, line_int_x, line_int_y, x, y, d = 0., m;
5687 gdouble tx0, ty0, tx1, ty1;
5688 gint wind1, wind2;
5689
5690 g_assert(pathv->routingedge);
5691
5692 if(TOPOROUTER_IS_CONSTRAINT(pathv->routingedge)) {
5693 gdouble d = tvdistance(tedge_v1(pathv->routingedge), tedge_v2(pathv->routingedge)) / 2.;
5694 ms = min_spacing(pathv, arcv);
5695 if(ms > d) ms = d;
5696 }else{
5697 ms = edge_min_spacing(g_list_find(edge_routing(pathv->routingedge), pathv), pathv->routingedge, arcv, debug);
5698 }
5699
5700
5701 if(!vertex_line_normal_intersection(x0, y0, x1, y1, vx(arcv), vy(arcv), &line_int_x, &line_int_y)) {
5702
5703 if(coord_distance2(x0, y0, line_int_x, line_int_y) < coord_distance2(x1, y1, line_int_x, line_int_y))
5704 { line_int_x = x0; line_int_y = y0; }else{ line_int_x = x1; line_int_y = y1; }
5705
5706 m = perpendicular_gradient(cartesian_gradient(vx(arcv), vy(arcv), line_int_x, line_int_y));
5707 }else{
5708 m = cartesian_gradient(x0, y0, x1, y1);
5709 }
5710
5711 coords_on_line(vx(arcv), vy(arcv), m, MIL_TO_COORD (1.), &tx0, &ty0, &tx1, &ty1);
5712
5713 wind1 = coord_wind(tx0, ty0, tx1, ty1, line_int_x, line_int_y);
5714 wind2 = coord_wind(tx0, ty0, tx1, ty1, vx(opv), vy(opv));
5715
5716 if(!wind2 || wind1 == wind2) return -1.;
5717
5718 if(!wind) {
5719 coords_on_line(line_int_x, line_int_y, perpendicular_gradient(m), ms, &tx0, &ty0, &tx1, &ty1);
5720 if(coord_distance2(tx0, ty0, vx(opv), vy(opv)) < coord_distance2(tx1, ty1, vx(opv), vy(opv)))
5721 { x = tx0; y = ty0; }else{ x = tx1; y = ty1; }
5722 }else{
5723 toporouter_vertex_t *parent = pathv->parent, *child = pathv->child;
5724 guint windtests = 0;
5725
5726 d = coord_distance(vx(arcv), vy(arcv), line_int_x, line_int_y);
5727 coord_move_towards_coord_values(line_int_x, line_int_y, vx(arcv), vy(arcv), ms + d, &x, &y);
5728 rewind_test:
5729 wind1 = coord_wind(line_int_x, line_int_y, x, y, vx(parent), vy(parent));
5730 wind2 = coord_wind(line_int_x, line_int_y, x, y, vx(child), vy(child));
5731 if(wind1 && wind2 && wind1 == wind2) {
5732 // return -1.;
5733 if(windtests++ == 2) return -1.;
5734
5735 if(parent->flags & VERTEX_FLAG_ROUTE) parent = parent->parent;
5736 if(child->flags & VERTEX_FLAG_ROUTE) child = child->child;
5737 goto rewind_test;
5738 }
5739 }
5740
5741
5742 *arcr = ms;
5743 *arcwind = tvertex_wind(pathv->parent, pathv, arcv);
5744
5745 #ifdef DEBUG_RUBBERBAND
5746 //if(debug)
5747 // printf("non-int check %f,%f ms %f d %f arcv %f,%f opv %f,%f\n", vx(arcv), vy(arcv), ms, d + ms,
5748 // vx(arcv), vy(arcv), vx(opv), vy(opv));
5749 #endif
5750
5751 return d + ms;
5752 }
5753
5754 gdouble
5755 check_intersect_vertex(gdouble x0, gdouble y0, gdouble x1, gdouble y1, toporouter_vertex_t *pathv, toporouter_vertex_t *arcv,
5756 toporouter_vertex_t *opv, gint wind, gint *arcwind, gdouble *arcr, guint debug)
5757 {
5758 gdouble ms, line_int_x, line_int_y, x, y, d = 0.;
5759
5760 if(TOPOROUTER_IS_CONSTRAINT(pathv->routingedge)) {
5761 gdouble d = tvdistance(tedge_v1(pathv->routingedge), tedge_v2(pathv->routingedge)) / 2.;
5762 ms = min_spacing(pathv, arcv);
5763 if(ms > d) ms = d;
5764 }else {
5765 ms = edge_min_spacing(g_list_find(edge_routing(pathv->routingedge), pathv), pathv->routingedge, arcv, debug);
5766 }
5767
5768 if(!vertex_line_normal_intersection(x0, y0, x1, y1, vx(arcv), vy(arcv), &line_int_x, &line_int_y))
5769 return -1.;
5770
5771 d = coord_distance(line_int_x, line_int_y, vx(arcv), vy(arcv));
5772
5773
5774 if(d > ms - EPSILON)
5775 return -1.;
5776
5777 coord_move_towards_coord_values(vx(arcv), vy(arcv), line_int_x, line_int_y, ms, &x, &y);
5778
5779 *arcr = ms;
5780 *arcwind = tvertex_wind(pathv->parent, pathv, arcv);
5781 // *arcwind = coord_wind(x0, y0, x, y, x1, y1);
5782 #ifdef DEBUG_RUBBERBAND
5783 //if(debug)
5784 // printf("int check %f,%f ms %f d %f arcv %f,%f opv %f,%f\n", vx(arcv), vy(arcv), ms, ms - d,
5785 // vx(arcv), vy(arcv), vx(opv), vy(opv));
5786 #endif
5787
5788 return ms - d;
5789 }
5790
5791 /* returns non-zero if arc has loops */
5792 guint
5793 check_arc_for_loops(gpointer t1, toporouter_arc_t *arc, gpointer t2)
5794 {
5795 gdouble x0, y0, x1, y1;
5796
5797 if(TOPOROUTER_IS_VERTEX(t1)) { x0 = vx(TOPOROUTER_VERTEX(t1)); y0 = vy(TOPOROUTER_VERTEX(t1)); }
5798 else { x0 = TOPOROUTER_ARC(t1)->x1; y0 = TOPOROUTER_ARC(t1)->y1; }
5799
5800 if(TOPOROUTER_IS_VERTEX(t2)) { x1 = vx(TOPOROUTER_VERTEX(t2)); y1 = vy(TOPOROUTER_VERTEX(t2)); }
5801 else { x1 = TOPOROUTER_ARC(t2)->x0; y1 = TOPOROUTER_ARC(t2)->y0; }
5802
5803 if(coord_intersect_prop(x0, y0, arc->x0, arc->y0, arc->x1, arc->y1, x1, y1) ) {
5804 // ||
5805 // (arc->x0 > arc->x1 - EPSILON && arc->x0 < arc->x1 + EPSILON &&
5806 // arc->y0 > arc->y1 - EPSILON && arc->y0 < arc->y1 + EPSILON)
5807 // ) {
5808 #ifdef DEBUG_RUBBERBAND
5809 printf("LOOPS %f %f -> %f %f & %f %f -> %f %f\n", x0, y0, arc->x0, arc->y0, arc->x1, arc->y1, x1, y1);
5810 #endif
5811 return 1;
5812 }
5813 return 0;
5814 }
5815
5816 toporouter_rubberband_arc_t *
5817 new_rubberband_arc(toporouter_vertex_t *pathv, toporouter_vertex_t *arcv, gdouble r, gdouble d, gint wind, GList *list)
5818 {
5819 toporouter_rubberband_arc_t *rba = (toporouter_rubberband_arc_t *)malloc(sizeof(toporouter_rubberband_arc_t));
5820 rba->pathv = pathv;
5821 rba->arcv = arcv;
5822 rba->r = r;
5823 rba->d = d;
5824 rba->wind = wind;
5825 rba->list = list;
5826 return rba;
5827 }
5828
5829 gint
5830 compare_rubberband_arcs(toporouter_rubberband_arc_t *a, toporouter_rubberband_arc_t *b)
5831 { return b->d - a->d; }
5832
5833 void
5834 free_list_elements(gpointer data, gpointer user_data)
5835 { free(data); }
5836
5837
5838 /* returns the edge opposite v from the triangle facing (x,y), or NULL if v is colinear with an edge between v and a neighbor */
5839 /*
5840 GtsEdge *
5841 vertex_edge_facing_vertex(GtsVertex *v, gdouble x, gdouble y)
5842 {
5843 GSList *ts = gts_vertex_triangles(GTS_VERTEX(n), NULL);
5844 GSList *i = ts;
5845
5846 while(i) {
5847 GtsTriangle *t = GTS_TRIANGLE(i->data);
5848 GtsEdge *e = gts_triangle_edge_opposite(t, v);
5849
5850 if(coord_wind(vx(edge_v1(e)), vy(edge_v1(e)), vx(v), vy(v), x, y) == vertex_wind(edge_v1(e), v, edge_v2(e)) &&
5851 coord_wind(vx(edge_v2(e)), vy(edge_v2(e)), vx(v), vy(v), x, y) == vertex_wind(edge_v2(e), v, edge_v1(e))
5852 ) {
5853 g_slist_free(ts);
5854 return e;
5855 }
5856
5857 i = i->next;
5858 }
5859
5860 g_slist_free(ts);
5861 return NULL;
5862 }
5863 */
5864
5865 gdouble
5866 check_adj_pushing_vertex(toporouter_oproute_t *oproute, gdouble x0, gdouble y0, gdouble x1, gdouble y1, toporouter_vertex_t *v, gdouble *arcr, gint *arcwind, toporouter_vertex_t **arc)
5867 {
5868 GSList *ns = gts_vertex_neighbors(GTS_VERTEX(v), NULL, NULL);
5869 GSList *i = ns;
5870 gdouble maxd = 0.;
5871
5872 while(i) {
5873 toporouter_vertex_t *n = TOPOROUTER_VERTEX(i->data);
5874 gdouble segintx, seginty;
5875 if(vertex_line_normal_intersection(x0, y0, x1, y1, vx(n), vy(n), &segintx, &seginty)) {
5876 toporouter_edge_t *e = tedge(n, v);
5877 gdouble ms = 0., d = coord_distance(segintx, seginty, vx(n), vy(n));
5878 //toporouter_vertex_t *a;
5879 toporouter_vertex_t *b;
5880 GList *closestnet = NULL;
5881
5882 g_assert(e);
5883
5884 if(v == tedge_v1(e)) {
5885 //a = tedge_v1(e);
5886 b = tedge_v2(e);
5887 closestnet = edge_routing(e);
5888 }else{
5889 //a = tedge_v2(e);
5890 b = tedge_v1(e);
5891 closestnet = g_list_last(edge_routing(e));
5892 }
5893
5894 if(closestnet) {
5895 ms = edge_min_spacing(closestnet, e, b, 0);
5896 ms += min_oproute_net_spacing(oproute, TOPOROUTER_VERTEX(closestnet->data));
5897 }else{
5898 ms = min_oproute_vertex_spacing(oproute, b);
5899 }
5900
5901 if(ms - d > maxd) {
5902 *arcr = ms;
5903 *arc = n;
5904 maxd = ms - d;
5905 if(vx(v) == x0 && vy(v) == y0) {
5906 *arcwind = coord_wind(x0, y0, vx(n), vy(n), x1, y1);
5907 }else if(vx(v) == x1 && vy(v) == y1) {
5908 *arcwind = coord_wind(x1, y1, vx(n), vy(n), x0, y0);
5909 }else{
5910 fprintf(stderr, "ERROR: check_adj_pushing_vertex encountered bad vertex v (coordinates don't match)\n");
5911 }
5912 }
5913 }
5914
5915 i = i->next;
5916 }
5917
5918 g_slist_free(ns);
5919 return maxd;
5920 }
5921
5922
5923 // path is t1 path
5924 GList *
5925 oproute_rubberband_segment(toporouter_t *r, toporouter_oproute_t *oproute, GList *path, gpointer t1, gpointer t2, guint debug)
5926 {
5927 gdouble x0, y0, x1, y1;
5928 toporouter_vertex_t *v1, *v2, *av1, *av2; /* v{1,2} are the vertex terminals of the segment, or arc terminal centres */
5929 toporouter_arc_t *arc1 = NULL, *arc2 = NULL, *newarc = NULL; /* arc{1,2} are the arc terminals of the segment, if they exist */
5930 GList *i = path;
5931 GList *list1, *list2;
5932
5933 GList *arcs = NULL;
5934 toporouter_rubberband_arc_t *max = NULL;
5935
5936 gdouble d, arcr;
5937 gint v1wind, v2wind, arcwind;
5938
5939 if(TOPOROUTER_IS_VERTEX(t1)) {
5940 v1 = TOPOROUTER_VERTEX(t1);
5941 x0 = vx(v1); y0 = vy(v1);
5942 }else{
5943 g_assert(TOPOROUTER_IS_ARC(t1));
5944 arc1 = TOPOROUTER_ARC(t1);
5945 v1 = TOPOROUTER_VERTEX(arc1->v1);
5946 x0 = arc1->x1;
5947 y0 = arc1->y1;
5948 }
5949
5950 if(TOPOROUTER_IS_VERTEX(t2)) {
5951 v2 = TOPOROUTER_VERTEX(t2);
5952 x1 = vx(v2); y1 = vy(v2);
5953 }else{
5954 g_assert(TOPOROUTER_IS_ARC(t2));
5955 arc2 = TOPOROUTER_ARC(t2);
5956 v2 = TOPOROUTER_VERTEX(arc2->v2);
5957 x1 = arc2->x0;
5958 y1 = arc2->y0;
5959 }
5960
5961 #define TEST_AND_INSERT(z) if(d > EPSILON) arcs = g_list_prepend(arcs, new_rubberband_arc(v, z, arcr, d, arcwind, i));
5962 #define ARC_CHECKS(z) (!(arc1 && arc1->centre == z) && !(arc2 && arc2->centre == z) && \
5963 !(TOPOROUTER_IS_VERTEX(t1) && z == v1) && !(TOPOROUTER_IS_VERTEX(t2) && z == v2))
5964
5965 if(v1 == v2 || !i->next || TOPOROUTER_VERTEX(i->data) == v2) return NULL;
5966
5967 //#ifdef DEBUG_RUBBERBAND
5968 if(debug) {
5969 printf("\nRB: line %f,%f %f,%f v1 = %f,%f v2 = %f,%f \n ", x0, y0, x1, y1, vx(v1), vy(v1), vx(v2), vy(v2));
5970 // if(v1->routingedge) print_edge(v1->routingedge);
5971 // if(v2->routingedge) print_edge(v2->routingedge);
5972
5973 }
5974 //#endif
5975
5976 /* check the vectices adjacent to the terminal vectices for push against the segment */
5977 //if(TOPOROUTER_IS_VERTEX(t1)) {
5978 // toporouter_vertex_t *arcc = NULL;
5979 // d = check_adj_pushing_vertex(oproute, x0, y0, x1, y1, v1, &arcr, &arcwind, &arcc);
5980 // g_assert(arcc != v1);
5981 // if(ARC_CHECKS(arcc) && d > EPSILON) arcs = g_list_prepend(arcs, new_rubberband_arc(v1, arcc, arcr, d, arcwind, path->next));
5982 //}
5983 //
5984 //if(TOPOROUTER_IS_VERTEX(t2)) {
5985 // toporouter_vertex_t *arcc = NULL;
5986 // d = check_adj_pushing_vertex(oproute, x0, y0, x1, y1, v2, &arcr, &arcwind, &arcc);
5987 // g_assert(arcc != v2);
5988 // if(ARC_CHECKS(arcc) && d > EPSILON) arcs = g_list_prepend(arcs, new_rubberband_arc(v2, arcc, arcr, d, arcwind, g_list_last(path)->prev));
5989 //}
5990
5991 i = i->next;
5992 while(i) {
5993 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
5994
5995 if(v == v2 || v == v1 || !v->routingedge) break;
5996
5997 #ifdef DEBUG_RUBBERBAND
5998 // if(debug)
5999 // printf("current v %f,%f - edge %f,%f %f,%f\n", vx(v), vy(v),
6000 // vx(tedge_v1(v->routingedge)), vy(tedge_v1(v->routingedge)),
6001 // vx(tedge_v2(v->routingedge)), vy(tedge_v2(v->routingedge))
6002 // );
6003 #endif
6004 g_assert(v->routingedge);
6005
6006 v1wind = coord_wind(x0, y0, x1, y1, vx(tedge_v1(v->routingedge)), vy(tedge_v1(v->routingedge)));
6007 v2wind = coord_wind(x0, y0, x1, y1, vx(tedge_v2(v->routingedge)), vy(tedge_v2(v->routingedge)));
6008 // if(debug) printf("\twinds: %d %d\n", v1wind, v2wind);
6009 if(!v1wind && !v2wind) { i = i->next; continue; }
6010
6011
6012 if(v1wind && v2wind && v1wind != v2wind) { /* edge is cutting through the current segment */
6013
6014 if(ARC_CHECKS(tedge_v1(v->routingedge)) ){ /* edge v1 is not the centre of an arc terminal */
6015 d = check_intersect_vertex(x0, y0, x1, y1, v, tedge_v1(v->routingedge), tedge_v2(v->routingedge), v1wind, &arcwind, &arcr, debug);
6016 TEST_AND_INSERT(tedge_v1(v->routingedge));
6017 }
6018
6019 if(ARC_CHECKS(tedge_v2(v->routingedge)) ){ /* edge v2 is not the centre of an arc terminal */
6020 d = check_intersect_vertex(x0, y0, x1, y1, v, tedge_v2(v->routingedge), tedge_v1(v->routingedge), v2wind, &arcwind, &arcr, debug);
6021 TEST_AND_INSERT(tedge_v2(v->routingedge));
6022 }
6023 }else{ /* edge is on one side of the segment */
6024
6025 if(ARC_CHECKS(tedge_v1(v->routingedge)) ){ /* edge v1 is not the centre of an arc terminal */
6026 d = check_non_intersect_vertex(x0, y0, x1, y1, v, tedge_v1(v->routingedge), tedge_v2(v->routingedge), v1wind, &arcwind, &arcr, debug);
6027 TEST_AND_INSERT(tedge_v1(v->routingedge));
6028 }
6029
6030 if(ARC_CHECKS(tedge_v2(v->routingedge)) ){ /* edge v2 is not the centre of an arc terminal */
6031 d = check_non_intersect_vertex(x0, y0, x1, y1, v, tedge_v2(v->routingedge), tedge_v1(v->routingedge), v2wind, &arcwind, &arcr, debug);
6032 TEST_AND_INSERT(tedge_v2(v->routingedge));
6033 }
6034 }
6035
6036 i = i->next;
6037 }
6038
6039 arcs = g_list_sort(arcs, (GCompareFunc) compare_rubberband_arcs);
6040 //rubberband_insert_maxarc:
6041 if(!arcs) return NULL;
6042 max = TOPOROUTER_RUBBERBAND_ARC(arcs->data);
6043
6044 av2 = max->pathv; i = max->list->next;
6045 while(i) {
6046 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
6047 if(v->routingedge && (tedge_v1(v->routingedge) == max->arcv || tedge_v2(v->routingedge) == max->arcv)) {
6048 av2 = v; i = i->next; continue;
6049 }
6050 break;
6051 }
6052
6053 av1 = max->pathv; i = max->list->prev;
6054 while(i) {
6055 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
6056 if(v->routingedge && (tedge_v1(v->routingedge) == max->arcv || tedge_v2(v->routingedge) == max->arcv)) {
6057 av1 = v; i = i->prev; continue;
6058 }
6059 break;
6060 }
6061 //#ifdef DEBUG_RUBBERBAND
6062 if(debug)
6063 printf("newarc @ %f,%f \t v1 = %f,%f v2 = %f,%f r = %f\n", vx(max->arcv), vy(max->arcv), vx(av1), vy(av1), vx(av2), vy(av2), max->r);
6064 //#endif
6065 newarc = toporouter_arc_new(oproute, av1, av2, max->arcv, max->r, max->wind);
6066
6067 if(TOPOROUTER_IS_VERTEX(t1))
6068 calculate_term_to_arc(TOPOROUTER_VERTEX(t1), newarc, 0);
6069 else if(calculate_arc_to_arc(r, TOPOROUTER_ARC(t1), newarc)) {
6070 printf("\tERROR: best: r = %f d = %f\n", max->r, max->d);
6071 printf("\tOPROUTE: %s\n", oproute->netlist);
6072 print_vertex(oproute->term1);
6073 print_vertex(oproute->term2);
6074 return NULL;
6075 }
6076
6077 if(TOPOROUTER_IS_VERTEX(t2))
6078 calculate_term_to_arc(TOPOROUTER_VERTEX(t2), newarc, 1);
6079 else if(calculate_arc_to_arc(r, newarc, TOPOROUTER_ARC(t2))) {
6080 printf("\tERROR: best: r = %f d = %f\n", max->r, max->d);
6081 printf("\tOPROUTE: %s\n", oproute->netlist);
6082 print_vertex(oproute->term1);
6083 print_vertex(oproute->term2);
6084 return NULL;
6085 }
6086
6087 //if(check_arc_for_loops(t1, newarc, t2)) {
6088 // if(arc1 && arc2) calculate_arc_to_arc(r, arc1, arc2);
6089 // else if(arc1) calculate_term_to_arc(TOPOROUTER_VERTEX(t2), arc1, 1);
6090 // else if(arc2) calculate_term_to_arc(TOPOROUTER_VERTEX(t1), arc2, 0);
6091
6092 //#ifdef DEBUG_RUBBERBAND
6093 // printf("REMOVING NEW ARC @ %f,%f\n", vx(newarc->centre), vy(newarc->centre));
6094 // //TODO: properly remove newarc
6095 //#endif
6096
6097 // arcs = g_list_remove(arcs, max);
6098 // free(max);
6099 // goto rubberband_insert_maxarc;
6100 //}
6101
6102
6103 list1 = oproute_rubberband_segment(r, oproute, path, t1, newarc, debug);
6104 list2 = oproute_rubberband_segment(r, oproute, i->next, newarc, t2, debug);
6105
6106 if(list1) {
6107 GList *list = g_list_last(list1);
6108 toporouter_arc_t *testarc = TOPOROUTER_ARC(list->data);
6109 toporouter_arc_t *parc = list->prev ? TOPOROUTER_ARC(list->prev->data) : arc1;
6110 gdouble px = parc ? parc->x1 : vx(TOPOROUTER_VERTEX(t1)), py = parc ? parc->y1 : vy(TOPOROUTER_VERTEX(t1));
6111
6112 if(coord_intersect_prop(px, py, testarc->x0, testarc->y0, testarc->x1, testarc->y1, newarc->x0, newarc->y0)) {
6113 list1 = g_list_remove(list1, testarc);
6114 if(parc) calculate_arc_to_arc(r, parc, newarc);
6115 else calculate_term_to_arc(TOPOROUTER_VERTEX(t1), newarc, 0);
6116 //#ifdef DEBUG_RUBBERBAND
6117 if(debug)
6118 printf("REMOVING ARC @ %f,%f\n", vx(testarc->centre), vy(testarc->centre));
6119 //#endif
6120 }
6121 }
6122 if(list2) {
6123 toporouter_arc_t *testarc = TOPOROUTER_ARC(list2->data);
6124 toporouter_arc_t *narc = list2->next ? TOPOROUTER_ARC(list2->next->data) : arc2;
6125 gdouble nx = narc ? narc->x0 : vx(TOPOROUTER_VERTEX(t2)), ny = narc ? narc->y0 : vy(TOPOROUTER_VERTEX(t2));
6126
6127 if(coord_intersect_prop(newarc->x1, newarc->y1, testarc->x0, testarc->y0, testarc->x1, testarc->y1, nx, ny)) {
6128 list2 = g_list_remove(list2, testarc);
6129 if(narc) calculate_arc_to_arc(r, newarc, narc);
6130 else calculate_term_to_arc(TOPOROUTER_VERTEX(t2), newarc, 1);
6131
6132 //#ifdef DEBUG_RUBBERBAND
6133 if(debug)
6134 printf("REMOVING ARC @ %f,%f\n", vx(testarc->centre), vy(testarc->centre));
6135 //#endif
6136 }
6137 }
6138
6139 g_list_foreach(arcs, free_list_elements, NULL);
6140 g_list_free(arcs);
6141
6142 return g_list_concat(list1, g_list_prepend(list2, newarc));
6143 }
6144
6145 void
6146 oproute_check_all_loops(toporouter_t *r, toporouter_oproute_t *oproute)
6147 {
6148 GList *i;
6149 gpointer t1;
6150
6151 loopcheck_restart:
6152 t1 = oproute->term1;
6153 i = oproute->arcs;
6154 while(i) {
6155 toporouter_arc_t *arc = TOPOROUTER_ARC(i->data);
6156 gpointer t2 = i->next ? i->next->data : oproute->term2;
6157
6158 if(check_arc_for_loops(t1, arc, t2)) {
6159
6160 if(TOPOROUTER_IS_ARC(t1) && TOPOROUTER_IS_ARC(t2))
6161 calculate_arc_to_arc(r, TOPOROUTER_ARC(t1), TOPOROUTER_ARC(t2));
6162 else if(TOPOROUTER_IS_ARC(t1))
6163 calculate_term_to_arc(TOPOROUTER_VERTEX(t2), TOPOROUTER_ARC(t1), 1);
6164 else if(TOPOROUTER_IS_ARC(t2))
6165 calculate_term_to_arc(TOPOROUTER_VERTEX(t1), TOPOROUTER_ARC(t2), 0);
6166
6167 oproute->arcs = g_list_remove(oproute->arcs, arc);
6168 goto loopcheck_restart;
6169 }
6170
6171 t1 = arc;
6172
6173 i = i->next;
6174 }
6175
6176 }
6177
6178 GtsTriangle *
6179 opposite_triangle(GtsTriangle *t, toporouter_edge_t *e)
6180 {
6181 GSList *i = GTS_EDGE(e)->triangles;
6182
6183 g_assert(e && t);
6184
6185 while(i) {
6186 if(GTS_TRIANGLE(i->data) != t) return GTS_TRIANGLE(i->data);
6187 i = i->next;
6188 }
6189
6190 return NULL;
6191 }
6192
6193
6194 void
6195 speccut_edge_routing_from_edge(GList *i, toporouter_edge_t *e)
6196 {
6197 g_assert(TOPOROUTER_IS_EDGE(e));
6198 while(i) {
6199 toporouter_vertex_t *curv = TOPOROUTER_VERTEX(i->data);
6200
6201 if(!(curv->flags & VERTEX_FLAG_TEMP)) {
6202 toporouter_vertex_t *newv = tvertex_intersect(curv, curv->parent, tedge_v1(e), tedge_v2(e));
6203
6204 // printf("\nCURV:\n");
6205 // print_vertex(curv);
6206 //
6207 // printf("CURV child:\n");
6208 // if(curv->child)
6209 // print_vertex(curv->child);
6210 // else
6211 // printf("NULL\n");
6212 //
6213 // printf("CURV parent:\n");
6214 // if(curv->parent)
6215 // print_vertex(curv->parent);
6216 // else
6217 // printf("NULL\n");
6218
6219 if(newv) {
6220 gint index;
6221 newv->flags |= VERTEX_FLAG_ROUTE;
6222 newv->flags |= VERTEX_FLAG_SPECCUT;
6223 e->routing = g_list_insert_sorted_with_data(e->routing, newv, routing_edge_insert, e);
6224 newv->route = curv->route;
6225 newv->oproute = curv->oproute;
6226 newv->routingedge = e;
6227 GTS_POINT(newv)->z = vz(curv);
6228
6229 newv->parent = curv->parent;
6230 newv->child = curv;
6231
6232 // curv->parent = newv;
6233
6234 index = g_list_index(newv->route->path, curv);
6235
6236 newv->route->path = g_list_insert(newv->route->path, newv, index);
6237
6238
6239 if(newv->oproute) newv->oproute->path = newv->route->path;
6240 }
6241
6242 if(!(curv->child->routingedge)) {
6243 newv = tvertex_intersect(curv, curv->child, tedge_v1(e), tedge_v2(e));
6244
6245 if(newv) {
6246 gint index;
6247 newv->flags |= VERTEX_FLAG_ROUTE;
6248 newv->flags |= VERTEX_FLAG_SPECCUT;
6249 e->routing = g_list_insert_sorted_with_data(e->routing, newv, routing_edge_insert, e);
6250 newv->route = curv->route;
6251 newv->oproute = curv->oproute;
6252 newv->routingedge = e;
6253 GTS_POINT(newv)->z = vz(curv);
6254
6255 newv->parent = curv;
6256 newv->child = curv->child;
6257
6258 // curv->child = newv;
6259
6260 index = g_list_index(newv->route->path, curv);
6261
6262 newv->route->path = g_list_insert(newv->route->path, newv, index+1);
6263
6264
6265 if(newv->oproute) newv->oproute->path = newv->route->path;
6266 }
6267
6268 }
6269
6270 }
6271 i = i->next;
6272 }
6273
6274 }
6275
6276 void
6277 speccut_edge_patch_links(toporouter_edge_t *e)
6278 {
6279 GList *i = e->routing;
6280 g_assert(TOPOROUTER_IS_EDGE(e));
6281 while(i) {
6282 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
6283 v->parent->child = v;
6284 v->child->parent = v;
6285 i = i->next;
6286 }
6287 }
6288
6289 gint
6290 check_speccut(toporouter_oproute_t *oproute, toporouter_vertex_t *v1, toporouter_vertex_t *v2, toporouter_edge_t *e, toporouter_edge_t *e1, toporouter_edge_t *e2)
6291 {
6292 GtsTriangle *t, *opt;
6293 toporouter_vertex_t *opv, *opv2;
6294 toporouter_edge_t *ope1, *ope2;
6295 gdouble cap, flow, line_int_x, line_int_y;
6296
6297 if(TOPOROUTER_IS_CONSTRAINT(e)) return 0;
6298
6299 if(!(t = gts_triangle_use_edges(GTS_EDGE(e), GTS_EDGE(e1), GTS_EDGE(e2)))) {
6300 printf("check_speccut: NULL t\n");
6301 return 0;
6302 }
6303
6304 if(!(opt = opposite_triangle(t, e))) {
6305 // printf("check_speccut: NULL opt\n");
6306 return 0;
6307 }
6308
6309 if(!(opv = segment_common_vertex(GTS_SEGMENT(e1), GTS_SEGMENT(e2)))) {
6310 printf("check_speccut: NULL opv\n");
6311 return 0;
6312 }
6313
6314 if(!(opv2 = TOPOROUTER_VERTEX(gts_triangle_vertex_opposite(opt, GTS_EDGE(e))))) {
6315 printf("check_speccut: NULL opv2\n");
6316 return 0;
6317 }
6318
6319 //TODO: shifting it out of the way would be better
6320 if(e->routing) {
6321 GList *i = e->routing;
6322 while(i) {
6323 toporouter_vertex_t *ev = TOPOROUTER_VERTEX(i->data);
6324 if(!tvertex_wind(opv, ev, opv2)) return 0;
6325 i = i->next;
6326 }
6327
6328 }
6329
6330 ope1 = tedge(opv2, tedge_v1(e));
6331 ope2 = tedge(opv2, tedge_v2(e));
6332
6333 //this fixes the weird pad exits in r8c board
6334 // if(TOPOROUTER_IS_CONSTRAINT(ope1)) return 0;
6335 if(TOPOROUTER_IS_CONSTRAINT(ope2)) return 0;
6336
6337 if(!tvertex_wind(opv2, tedge_v1(e), opv)) return 0;
6338 if(!tvertex_wind(opv2, tedge_v2(e), opv)) return 0;
6339
6340 if(!vertex_line_normal_intersection(
6341 vx(tedge_v1(e)), vy(tedge_v1(e)),
6342 vx(tedge_v2(e)), vy(tedge_v2(e)),
6343 vx(opv2), vy(opv2),
6344 &line_int_x, &line_int_y)) return 0;
6345
6346
6347 // return 0;
6348 //if(vertex_line_normal_intersection(tev1x(e), tev1y(e), tev2x(e), tev2y(e), vx(opv), vy(opv), &line_int_x, &line_int_y))
6349 // return 0;
6350
6351 g_assert(opt && opv2);
6352
6353 /* this is just temp, for the purposes of determining flow */
6354 if(tedge_v1(ope1) == opv2) {
6355 if(TOPOROUTER_IS_CONSTRAINT(ope1))
6356 TOPOROUTER_CONSTRAINT(ope1)->routing = g_list_append(TOPOROUTER_CONSTRAINT(ope1)->routing, v1);
6357 else
6358 ope1->routing = g_list_append(ope1->routing, v1);
6359 }else{
6360 if(TOPOROUTER_IS_CONSTRAINT(ope1))
6361 TOPOROUTER_CONSTRAINT(ope1)->routing = g_list_prepend(TOPOROUTER_CONSTRAINT(ope1)->routing, v1);
6362 else
6363 ope1->routing = g_list_prepend(ope1->routing, v1);
6364 }
6365
6366 cap = triangle_interior_capacity(opt, opv2);
6367 flow = flow_from_edge_to_edge(opt, tedge(opv2, tedge_v1(e)), tedge(opv2, tedge_v2(e)), opv2, v1);
6368
6369 /* temp v1 removed */
6370 if(TOPOROUTER_IS_CONSTRAINT(ope1))
6371 TOPOROUTER_CONSTRAINT(ope1)->routing = g_list_remove(TOPOROUTER_CONSTRAINT(ope1)->routing, v1);
6372 else
6373 ope1->routing = g_list_remove(ope1->routing, v1);
6374
6375 if(flow >= cap) {
6376 toporouter_edge_t *newe = TOPOROUTER_EDGE(gts_edge_new(GTS_EDGE_CLASS(toporouter_edge_class()), GTS_VERTEX(opv), GTS_VERTEX(opv2)));
6377
6378 speccut_edge_routing_from_edge(edge_routing(e1), newe);
6379 speccut_edge_routing_from_edge(edge_routing(e2), newe);
6380 speccut_edge_routing_from_edge(edge_routing(ope1), newe);
6381 speccut_edge_routing_from_edge(edge_routing(ope2), newe);
6382
6383 speccut_edge_patch_links(newe);
6384 /*
6385 printf("SPECCUT WITH v %f,%f for seg %f,%f %f,%f detected\n", vx(opv2), vy(opv2),
6386 vx(v1), vy(v1),
6387 vx(v2), vy(v2));
6388 printf("\tflow %f cap %f\n", flow, cap);
6389 print_edge(newe);
6390 */
6391 if(newe->routing) return 1;
6392 }
6393
6394
6395 return 0;
6396 }
6397
6398
6399 gint
6400 oproute_path_speccut(toporouter_oproute_t *oproute)
6401 {
6402 GList *i;
6403 toporouter_vertex_t *pv;
6404 path_speccut_restart:
6405 i = oproute->path;
6406 pv = NULL;
6407 while(i) {
6408 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
6409
6410
6411 if(pv && (v->routingedge || pv->routingedge) && !(pv->flags & VERTEX_FLAG_SPECCUT) && !(v->flags & VERTEX_FLAG_SPECCUT)) {
6412
6413 if(!v->routingedge) {
6414 if(check_speccut(oproute, pv, v, tedge(tedge_v1(pv->routingedge), v), pv->routingedge, tedge(tedge_v2(pv->routingedge), v)))
6415 goto path_speccut_restart;
6416 if(check_speccut(oproute, pv, v, tedge(tedge_v2(pv->routingedge), v), pv->routingedge, tedge(tedge_v1(pv->routingedge), v)))
6417 goto path_speccut_restart;
6418 }else if(!pv->routingedge) {
6419 if(check_speccut(oproute, v, pv, tedge(tedge_v1(v->routingedge), pv), v->routingedge, tedge(tedge_v2(v->routingedge), pv)))
6420 goto path_speccut_restart;
6421 if(check_speccut(oproute, v, pv, tedge(tedge_v2(v->routingedge), pv), v->routingedge, tedge(tedge_v1(v->routingedge), pv)))
6422 goto path_speccut_restart;
6423 }else{
6424 toporouter_vertex_t *v1 = NULL, *v2 = NULL;
6425 edges_third_edge(GTS_SEGMENT(v->routingedge), GTS_SEGMENT(pv->routingedge), &v1, &v2);
6426 if(check_speccut(oproute, v, pv, tedge(v1, v2), v->routingedge, pv->routingedge))
6427 goto path_speccut_restart;
6428 }
6429 }
6430
6431
6432 pv = v;
6433 i = i->next;
6434 }
6435
6436 return 0;
6437 }
6438
6439 toporouter_oproute_t *
6440 oproute_rubberband(toporouter_t *r, GList *path)
6441 {
6442 toporouter_oproute_t *oproute = (toporouter_oproute_t *)malloc(sizeof(toporouter_oproute_t));
6443
6444 g_assert(path);
6445
6446 oproute->term1 = TOPOROUTER_VERTEX(path->data);
6447 oproute->term2 = TOPOROUTER_VERTEX(g_list_last(path)->data);
6448 oproute->arcs = NULL;
6449 oproute->style = vertex_bbox(oproute->term1)->cluster->netlist->style;
6450 oproute->netlist = vertex_bbox(oproute->term1)->cluster->netlist->netlist;
6451 oproute->layergroup = vz(oproute->term1);
6452 oproute->path = path;
6453 oproute->serp = NULL;
6454
6455 oproute->term1->parent = NULL;
6456 oproute->term2->child = NULL;
6457
6458 path_set_oproute(path, oproute);
6459
6460 // if(!strcmp(oproute->netlist, " unnamed_net1"))
6461 oproute_path_speccut(oproute);
6462
6463 #ifdef DEBUG_RUBBERBAND
6464 if(strcmp(oproute->netlist, " VCC3V3" == 0) &&
6465 vx(oproute->term1) == MIL_TO_COORD (957.) &&
6466 vy(oproute->term1) == MIL_TO_COORD (708.) &&
6467 vx(oproute->term2) == MIL_TO_COORD (1967.) &&
6468 vy(oproute->term2) == MIL_TO_COORD (673.))
6469 {
6470 // printf("OPROUTE %s - %f,%f %f,%f\n", oproute->netlist, vx(oproute->term1), vy(oproute->term1), vx(oproute->term2), vy(oproute->term2));
6471 // print_path(path);
6472 oproute->arcs = oproute_rubberband_segment(r, oproute, path, oproute->term1, oproute->term2, 1);
6473 }else
6474 #endif
6475 oproute->arcs = oproute_rubberband_segment(r, oproute, path, oproute->term1, oproute->term2, 0);
6476
6477 oproute_check_all_loops(r, oproute);
6478 return oproute;
6479
6480 }
6481
6482 void
6483 toporouter_export(toporouter_t *r)
6484 {
6485 GList *i = r->routednets;
6486 GList *oproutes = NULL;
6487
6488 while(i) {
6489 toporouter_route_t *routedata = TOPOROUTER_ROUTE(i->data);
6490 toporouter_oproute_t *oproute = oproute_rubberband(r, routedata->path);
6491 oproutes = g_list_prepend(oproutes, oproute);
6492 i = i->next;
6493 }
6494
6495 i = oproutes;
6496 while(i) {
6497 toporouter_oproute_t *oproute = (toporouter_oproute_t *) i->data;
6498 export_oproutes(r, oproute);
6499 oproute_free(oproute);
6500 i = i->next;
6501 }
6502
6503 Message (_("Reticulating splines... successful\n\n"));
6504 /* NB: We could use the %$mS specifier to print these distances, but we would
6505 * have to cast to Coord, which might overflow for complex routing when
6506 * PCB is built with Coord as a 32-bit integer.
6507 */
6508 Message (_("Wiring cost: %f inches\n"), COORD_TO_INCH (r->wiring_score));
6509 printf (_("Wiring cost: %f inches\n"), COORD_TO_INCH (r->wiring_score));
6510
6511 g_list_free(oproutes);
6512
6513 }
6514
6515 toporouter_route_t *
6516 routedata_create(void)
6517 {
6518 toporouter_route_t *routedata = (toporouter_route_t *)malloc(sizeof(toporouter_route_t));
6519 routedata->netlist = NULL;
6520 routedata->alltemppoints = NULL;
6521 routedata->path = NULL;
6522 routedata->curpoint = NULL;
6523 routedata->pscore = routedata->score = 0.;
6524 routedata->flags = 0;
6525 routedata->src = routedata->dest = NULL;
6526 routedata->psrc = routedata->pdest = NULL;
6527 routedata->ppath = routedata->topopath = NULL;
6528
6529 routedata->ppathindices = NULL;
6530
6531 routedata->destvertices = routedata->srcvertices = NULL;
6532 return routedata;
6533 }
6534 /*
6535 void
6536 print_routedata(toporouter_route_t *routedata)
6537 {
6538 GList *srcvertices = cluster_vertices(routedata->src);
6539 GList *destvertices = cluster_vertices(routedata->dest);
6540
6541 printf("ROUTEDATA:\n");
6542 printf("SRCVERTICES:\n");
6543 print_vertices(srcvertices);
6544 printf("DESTVERTICES:\n");
6545 print_vertices(destvertices);
6546
6547 g_list_free(srcvertices);
6548 g_list_free(destvertices);
6549 }*/
6550
6551 toporouter_route_t *
6552 import_route(toporouter_t *r, RatType *line)
6553 {
6554 toporouter_route_t *routedata = routedata_create();
6555
6556 routedata->src = cluster_find(r, line->Point1.X, line->Point1.Y, line->group1);
6557 routedata->dest = cluster_find(r, line->Point2.X, line->Point2.Y, line->group2);
6558
6559 if(!routedata->src) printf("couldn't locate src\n");
6560 if(!routedata->dest) printf("couldn't locate dest\n");
6561
6562 if(!routedata->src || !routedata->dest) {
6563 pcb_printf("PROBLEM: couldn't locate rat src or dest for rat %#mD, %d -> %#mD, %d\n",
6564 line->Point1.X, line->Point1.Y, line->group1, line->Point2.X, line->Point2.Y, line->group2);
6565 free(routedata);
6566 return NULL;
6567 }
6568
6569 routedata->netlist = routedata->src->netlist;
6570
6571 g_assert(routedata->src->netlist == routedata->dest->netlist);
6572
6573 g_ptr_array_add(r->routes, routedata);
6574 g_ptr_array_add(routedata->netlist->routes, routedata);
6575
6576 r->failednets = g_list_prepend(r->failednets, routedata);
6577
6578 return routedata;
6579 }
6580
6581 void
6582 delete_route(toporouter_route_t *routedata, guint destroy)
6583 {
6584 GList *i = routedata->path;
6585 toporouter_vertex_t *pv = NULL;
6586
6587 while(i) {
6588 toporouter_vertex_t *tv = TOPOROUTER_VERTEX(i->data);
6589
6590 g_assert(tv);
6591
6592 if(tv && pv && !(tv->flags & VERTEX_FLAG_ROUTE) && !(pv->flags & VERTEX_FLAG_ROUTE)) {
6593 toporouter_edge_t *e = TOPOROUTER_EDGE(gts_vertices_are_connected(GTS_VERTEX(tv), GTS_VERTEX(pv)));
6594
6595 if(e && (e->flags & EDGE_FLAG_DIRECTCONNECTION)) {
6596 e->flags ^= EDGE_FLAG_DIRECTCONNECTION;
6597 }
6598 }
6599 pv = tv;
6600 i = i->next;
6601 }
6602
6603 i = routedata->path;
6604 while(i) {
6605 toporouter_vertex_t *tv = TOPOROUTER_VERTEX(i->data);
6606
6607 tv->parent = NULL;
6608 tv->child = NULL;
6609
6610 if(tv->routingedge) {
6611 if(TOPOROUTER_IS_CONSTRAINT(tv->routingedge))
6612 TOPOROUTER_CONSTRAINT(tv->routingedge)->routing = g_list_remove(TOPOROUTER_CONSTRAINT(tv->routingedge)->routing, tv);
6613 else
6614 tv->routingedge->routing = g_list_remove(tv->routingedge->routing, tv);
6615 if(destroy) gts_object_destroy ( GTS_OBJECT(tv) );
6616 }
6617
6618 i = i->next;
6619 }
6620
6621 if(routedata->path) g_list_free(routedata->path);
6622 routedata->path = NULL;
6623 routedata->curpoint = NULL;
6624 routedata->score = INFINITY;
6625 routedata->alltemppoints = NULL;
6626 }
6627
6628 /* remove route can be later reapplied */
6629 void
6630 remove_route(GList *path)
6631 {
6632 GList *i = path;
6633
6634 while(i) {
6635 toporouter_vertex_t *tv = TOPOROUTER_VERTEX(i->data);
6636
6637 tv->parent = NULL;
6638 tv->child = NULL;
6639
6640 // if(tv->flags & VERTEX_FLAG_ROUTE) g_assert(tv->route == routedata);
6641
6642 if(tv->routingedge) {
6643
6644 if(TOPOROUTER_IS_CONSTRAINT(tv->routingedge))
6645 TOPOROUTER_CONSTRAINT(tv->routingedge)->routing = g_list_remove(TOPOROUTER_CONSTRAINT(tv->routingedge)->routing, tv);
6646 else
6647 tv->routingedge->routing = g_list_remove(tv->routingedge->routing, tv);
6648 }
6649 i = i->next;
6650 }
6651
6652 }
6653
6654 gint
6655 apply_route(GList *path, toporouter_route_t *routedata)
6656 {
6657 GList *i = path;
6658 toporouter_vertex_t *pv = NULL;
6659 gint count = 0;
6660
6661 if(!path) return 0;
6662 // g_assert(path);
6663
6664 while(i) {
6665 toporouter_vertex_t *tv = TOPOROUTER_VERTEX(i->data);
6666
6667 if(tv->routingedge) {
6668 if(TOPOROUTER_IS_CONSTRAINT(tv->routingedge))
6669 TOPOROUTER_CONSTRAINT(tv->routingedge)->routing = g_list_insert_sorted_with_data(
6670 TOPOROUTER_CONSTRAINT(tv->routingedge)->routing,
6671 tv,
6672 routing_edge_insert,
6673 tv->routingedge);
6674 else
6675 tv->routingedge->routing = g_list_insert_sorted_with_data(
6676 tv->routingedge->routing,
6677 tv,
6678 routing_edge_insert,
6679 tv->routingedge);
6680
6681 count++;
6682 }
6683
6684 if(pv) {
6685 pv->child = tv;
6686 tv->parent = pv;
6687 }
6688
6689 if(tv->flags & VERTEX_FLAG_ROUTE) g_assert(tv->route == routedata);
6690
6691 pv = tv;
6692 i = i->next;
6693 }
6694
6695 TOPOROUTER_VERTEX(path->data)->parent = NULL;
6696 pv->child = NULL;
6697
6698 return count;
6699 }
6700
6701
6702 gint
6703 compare_routedata_ascending(gconstpointer a, gconstpointer b)
6704 {
6705 toporouter_route_t *ra = (toporouter_route_t *)a;
6706 toporouter_route_t *rb = (toporouter_route_t *)b;
6707 return ra->score - rb->score;
6708 }
6709
6710 void
6711 print_costmatrix(gdouble *m, guint n)
6712 {
6713 printf("COST MATRIX:\n");
6714 for(guint i = 0;i<n;i++) {
6715 for(guint j = 0;j<n;j++) {
6716 printf("%f ", m[(i*n)+j]);
6717 }
6718 printf("\n");
6719 }
6720 }
6721
6722
6723 static inline void
6724 init_cost_matrix(gdouble *m, guint n)
6725 {
6726 for(guint i=0;i<n;i++) {
6727 for(guint j=0;j<n;j++) {
6728 m[(i*n)+j] = INFINITY;
6729 }
6730 }
6731 }
6732
6733
6734 toporouter_netscore_t *
6735 netscore_create(toporouter_t *r, toporouter_route_t *routedata, guint n, guint id)
6736 {
6737 toporouter_netscore_t *netscore = (toporouter_netscore_t *)malloc(sizeof(toporouter_netscore_t));
6738 GList *path = route(r, routedata, 0);
6739
6740 netscore->id = id;
6741
6742 netscore->routedata = routedata;
6743 routedata->detourscore = netscore->score = routedata->score;
6744
6745 if(!finite(routedata->detourscore)) {
6746 printf("WARNING: !finite(detourscore)\n");
6747 print_cluster(routedata->src);
6748 print_cluster(routedata->dest);
6749 return NULL;
6750 }
6751
6752 netscore->pairwise_nodetour = (guint *)malloc(n * sizeof(guint));
6753
6754 for(guint i=0;i<n;i++) {
6755 netscore->pairwise_nodetour[i] = 0;
6756 }
6757
6758 netscore->pairwise_detour_sum = 0.;
6759 netscore->pairwise_fails = 0;
6760
6761 netscore->r = r;
6762
6763 if(path) {
6764 routedata->topopath = g_list_copy(routedata->path);
6765 delete_route(routedata, 0);
6766 }
6767
6768 return netscore;
6769 }
6770
6771 static inline void
6772 netscore_destroy(toporouter_netscore_t *netscore)
6773 {
6774 free(netscore->pairwise_nodetour);
6775 free(netscore);
6776 }
6777
6778 void
6779 print_netscores(GPtrArray* netscores)
6780 {
6781 printf("NETSCORES: \n\n");
6782 printf(" %15s %15s %15s\n----------------------------------------------------\n", "Score", "Detour Sum", "Pairwise Fails");
6783
6784 for(toporouter_netscore_t **i = (toporouter_netscore_t **) netscores->pdata; i < (toporouter_netscore_t **) netscores->pdata + netscores->len; i++) {
6785 #ifdef DEBUG_NETSCORES
6786 printf("%4d %15f %15f %15d %15x\n", (*i)->id, (*i)->score, (*i)->pairwise_detour_sum, (*i)->pairwise_fails, (guint)*i);
6787 #endif
6788 }
6789
6790 printf("\n");
6791 }
6792
6793 void
6794 netscore_pairwise_calculation(toporouter_netscore_t *netscore, GPtrArray *netscores)
6795 {
6796 toporouter_netscore_t **netscores_base = (toporouter_netscore_t **) (netscores->pdata);
6797 toporouter_route_t *temproutedata = routedata_create();
6798
6799 //route(netscore->r, netscore->routedata, 0);
6800 apply_route(netscore->routedata->topopath, netscore->routedata);
6801
6802 for(toporouter_netscore_t **i = netscores_base; i < netscores_base + netscores->len; i++) {
6803
6804 if(!netscore->pairwise_nodetour[i-netscores_base] && *i != netscore && (*i)->routedata->netlist != netscore->routedata->netlist) {
6805
6806 temproutedata->src = (*i)->routedata->src;
6807 temproutedata->dest = (*i)->routedata->dest;
6808
6809 route(netscore->r, temproutedata, 0);
6810
6811 if(temproutedata->score == (*i)->score) {
6812 netscore->pairwise_nodetour[i-netscores_base] = 1;
6813 (*i)->pairwise_nodetour[netscore->id] = 1;
6814 }else
6815 if(!finite(temproutedata->score)) {
6816 netscore->pairwise_fails += 1;
6817 }else{
6818 netscore->pairwise_detour_sum += temproutedata->score - (*i)->score;
6819 }
6820
6821 delete_route(temproutedata, 1);
6822 }
6823
6824 }
6825
6826 // delete_route(netscore->routedata, 1);
6827 remove_route(netscore->routedata->topopath);
6828
6829 free(temproutedata);
6830 }
6831
6832 gint
6833 netscore_pairwise_size_compare(toporouter_netscore_t **a, toporouter_netscore_t **b)
6834 {
6835 // infinite scores are last
6836 if(!finite((*a)->score) && !finite((*b)->score)) return 0;
6837 if(finite((*a)->score) && !finite((*b)->score)) return -1;
6838 if(finite((*b)->score) && !finite((*a)->score)) return 1;
6839
6840 // order by pairwise fails
6841 if((*a)->pairwise_fails < (*b)->pairwise_fails) return -1;
6842 if((*b)->pairwise_fails < (*a)->pairwise_fails) return 1;
6843
6844 // order by pairwise detour
6845 if((*a)->pairwise_detour_sum < (*b)->pairwise_detour_sum) return -1;
6846 if((*b)->pairwise_detour_sum < (*a)->pairwise_detour_sum) return 1;
6847
6848 // order by score
6849 if((*a)->score < (*b)->score) return -1;
6850 if((*b)->score < (*a)->score) return 1;
6851
6852 return 0;
6853 }
6854
6855 gint
6856 netscore_pairwise_compare(toporouter_netscore_t **a, toporouter_netscore_t **b)
6857 {
6858 // infinite scores are last
6859 if(!finite((*a)->score) && !finite((*b)->score)) return 0;
6860 if(finite((*a)->score) && !finite((*b)->score)) return -1;
6861 if(finite((*b)->score) && !finite((*a)->score)) return 1;
6862
6863 // order by pairwise fails
6864 if((*a)->pairwise_fails < (*b)->pairwise_fails) return -1;
6865 if((*b)->pairwise_fails < (*a)->pairwise_fails) return 1;
6866
6867 // order by pairwise detour
6868 if((*a)->pairwise_detour_sum < (*b)->pairwise_detour_sum) return -1;
6869 if((*b)->pairwise_detour_sum < (*a)->pairwise_detour_sum) return 1;
6870
6871 return 0;
6872 }
6873
6874 guint
6875 order_nets_preroute_greedy(toporouter_t *r, GList *nets, GList **rnets)
6876 {
6877 gint len = g_list_length(nets);
6878 GPtrArray* netscores = g_ptr_array_sized_new(len);
6879 guint failcount = 0;
6880
6881 while(nets) {
6882 toporouter_netscore_t *ns = netscore_create(r, TOPOROUTER_ROUTE(nets->data), len, failcount++);
6883 if(ns) g_ptr_array_add(netscores, ns);
6884 nets = nets->next;
6885 }
6886
6887 failcount = 0;
6888
6889 g_ptr_array_foreach(netscores, (GFunc) netscore_pairwise_calculation, netscores);
6890
6891 g_ptr_array_sort(netscores, (GCompareFunc) r->netsort);
6892
6893 #ifdef DEBUG_ORDERING
6894 print_netscores(netscores);
6895 #endif
6896
6897 *rnets = NULL;
6898 FOREACH_NETSCORE(netscores) {
6899 *rnets = g_list_prepend(*rnets, netscore->routedata);
6900 if(!finite(netscore->score)) failcount++;
6901 netscore_destroy(netscore);
6902 } FOREACH_END;
6903
6904 g_ptr_array_free(netscores, TRUE);
6905
6906 return failcount;
6907 }
6908
6909 toporouter_vertex_t *
6910 edge_closest_vertex(toporouter_edge_t *e, toporouter_vertex_t *v)
6911 {
6912 GList *i = v->routingedge ? edge_routing(v->routingedge) : NULL;
6913 gdouble closestd = 0.;
6914 toporouter_vertex_t *closestv = NULL;
6915
6916 while(i) {
6917 toporouter_vertex_t *ev = TOPOROUTER_VERTEX(i->data);
6918 gdouble tempd = gts_point_distance2(GTS_POINT(ev), GTS_POINT(v));
6919
6920 if(!closestv || (tempd < closestd)) {
6921 closestd = tempd;
6922 closestv = ev;
6923 }
6924
6925 i = i->next;
6926 }
6927
6928 return closestv;
6929 }
6930
6931 void
6932 snapshot(toporouter_t *r, char *name, GList *datas)
6933 {
6934 ///*
6935 {
6936 int i;
6937 for(i=0;i<groupcount();i++) {
6938 char buffer[256];
6939 sprintf(buffer, "route-%s-%d.png", name, i);
6940 toporouter_draw_surface(r, r->layers[i].surface, buffer, 2048, 2048, 2, datas, i, NULL);
6941 }
6942 }
6943 //*/
6944
6945 }
6946 /*
6947 gdouble
6948 route_conflict(toporouter_t *r, toporouter_route_t *route, guint *n)
6949 {
6950 GList *i = route->path;
6951 toporouter_vertex_t *pv = NULL;
6952 gdouble cost = 0.;
6953
6954 while(i) {
6955 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
6956 if(pv && vz(v) == vz(pv))
6957 cost += vertices_routing_conflict_cost(r, v, pv, n);
6958 pv = v;
6959 i = i->next;
6960 }
6961
6962 return cost;
6963 }
6964 */
6965 GList *
6966 route_conflicts(toporouter_route_t *route)
6967 {
6968 GList *conflicts = NULL, *i = route->path;
6969 toporouter_vertex_t *pv = NULL;
6970
6971 while(i) {
6972 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
6973
6974 if(pv && vz(pv) == vz(v)) {
6975 GList *temp = vertices_routing_conflicts(pv, v), *j;
6976
6977 j = temp;
6978 while(j) {
6979 toporouter_route_t *conroute = TOPOROUTER_ROUTE(j->data);
6980 if(!g_list_find(conflicts, conroute))
6981 conflicts = g_list_prepend(conflicts, conroute);
6982 j = j->next;
6983 }
6984
6985 if(temp) g_list_free(temp);
6986 }
6987
6988 pv = v;
6989 i = i->next;
6990 }
6991 return conflicts;
6992 }
6993
6994 gint
6995 spread_edge(gpointer item, gpointer data)
6996 {
6997 toporouter_edge_t *e = TOPOROUTER_EDGE(item);
6998 toporouter_vertex_t *v;
6999 gdouble spacing, s;
7000 GList *i;
7001
7002 if(TOPOROUTER_IS_CONSTRAINT(e)) return 0;
7003
7004 i = edge_routing(e);
7005
7006 if(!g_list_length(i)) return 0;
7007
7008 if(g_list_length(i) == 1) {
7009 v = TOPOROUTER_VERTEX(i->data);
7010 GTS_POINT(v)->x = (vx(edge_v1(e)) + vx(edge_v2(e))) / 2.;
7011 GTS_POINT(v)->y = (vy(edge_v1(e)) + vy(edge_v2(e))) / 2.;
7012 return 0;
7013 }
7014
7015 s = spacing = (gts_point_distance(GTS_POINT(edge_v1(e)), GTS_POINT(edge_v2(e))) ) / (g_list_length(i) + 1);
7016
7017 while(i) {
7018 v = TOPOROUTER_VERTEX(i->data);
7019 vertex_move_towards_vertex_values(edge_v1(e), edge_v2(e), s, &(GTS_POINT(v)->x), &(GTS_POINT(v)->y));
7020
7021 s += spacing;
7022 i = i->next;
7023 }
7024
7025 return 0;
7026 }
7027
7028 void
7029 route_checkpoint(toporouter_route_t *route, toporouter_route_t *temproute)
7030 {
7031 GList *i = g_list_last(route->path);
7032 gint n = g_list_length(route->path);
7033
7034 if(route->ppathindices) free(route->ppathindices);
7035 route->ppathindices = (gint *)malloc(sizeof(gint)*n);
7036
7037 // n = 0;
7038 while(i) {
7039 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
7040 n--;
7041
7042 if(v->routingedge) {
7043 GList *j = g_list_find(edge_routing(v->routingedge), v)->prev;
7044 gint tempindex = g_list_index(edge_routing(v->routingedge), v);
7045
7046 while(j) {
7047 if(TOPOROUTER_VERTEX(j->data)->route == temproute) tempindex--;
7048 j = j->prev;
7049 }
7050
7051 route->ppathindices[n] = tempindex;
7052
7053 if(TOPOROUTER_IS_CONSTRAINT(v->routingedge))
7054 TOPOROUTER_CONSTRAINT(v->routingedge)->routing = g_list_remove(TOPOROUTER_CONSTRAINT(v->routingedge)->routing, v);
7055 else
7056 v->routingedge->routing = g_list_remove(v->routingedge->routing, v);
7057 }
7058
7059 i = i->prev;
7060 }
7061
7062 route->pscore = route->score;
7063 route->ppath = route->path;
7064 remove_route(route->path);
7065 route->path = NULL;
7066 route->psrc = route->src;
7067 route->pdest = route->dest;
7068 //route->src->pc = route->src->c;
7069 //route->dest->pc = route->dest->c;
7070 }
7071
7072 void
7073 route_restore(toporouter_route_t *route)
7074 {
7075 GList *i;
7076 toporouter_vertex_t *pv = NULL;
7077 gint n = 0;
7078
7079 g_assert(route->ppath);
7080 g_assert(route->ppathindices);
7081
7082 route->path = route->ppath;
7083 i = route->ppath;
7084 while(i) {
7085 toporouter_vertex_t *v = TOPOROUTER_VERTEX(i->data);
7086
7087 if(v->routingedge) {
7088 if(TOPOROUTER_IS_CONSTRAINT(v->routingedge))
7089 TOPOROUTER_CONSTRAINT(v->routingedge)->routing = g_list_insert(TOPOROUTER_CONSTRAINT(v->routingedge)->routing, v, route->ppathindices[n]);
7090 else
7091 v->routingedge->routing = g_list_insert(v->routingedge->routing, v, route->ppathindices[n]);
7092
7093 // space_edge(v->routingedge, NULL);
7094 }
7095
7096 if(pv) {
7097 pv->child = v;
7098 v->parent = pv;
7099 }
7100
7101 n++;
7102 pv = v;
7103 i = i->next;
7104 }
7105
7106 route->score = route->pscore;
7107 route->src = route->psrc;
7108 route->dest = route->pdest;
7109 //route->src->c = route->src->pc;
7110 //route->dest->c = route->dest->pc;
7111
7112 }
7113
7114 void
7115 cluster_merge(toporouter_route_t *routedata)
7116 {
7117 gint oldc = routedata->dest->c, newc = routedata->src->c;
7118
7119 FOREACH_CLUSTER(routedata->netlist->clusters) {
7120 if(cluster->c == oldc)
7121 cluster->c = newc;
7122 } FOREACH_END;
7123
7124 }
7125
7126 void
7127 netlist_recalculate(toporouter_netlist_t *netlist, GList *ignore)
7128 {
7129 GList *i = g_list_last(netlist->routed);
7130 gint n = netlist->clusters->len-1;
7131
7132 FOREACH_CLUSTER(netlist->clusters) {
7133 cluster->c = n--;
7134 } FOREACH_END;
7135
7136 while(i) {
7137 if(!ignore || !g_list_find(ignore, i->data)) cluster_merge(TOPOROUTER_ROUTE(i->data));
7138 i = i->prev;
7139 }
7140
7141 }
7142
7143 void
7144 netlists_recalculate(GList *netlists, GList *ignore)
7145 {
7146 GList *i = netlists;
7147 while(i) {
7148 netlist_recalculate(TOPOROUTER_NETLIST(i->data), ignore);
7149 i = i->next;
7150 }
7151 }
7152
7153 void
7154 netlists_rollback(GList *netlists)
7155 {
7156 // netlists_recalculate(netlists, NULL);
7157 while(netlists) {
7158 toporouter_netlist_t *netlist = TOPOROUTER_NETLIST(netlists->data);
7159
7160 FOREACH_CLUSTER(netlist->clusters) {
7161 cluster->c = cluster->pc;
7162 } FOREACH_END;
7163
7164 netlists = netlists->next;
7165 }
7166 }
7167
7168 void
7169 print_netlist(toporouter_netlist_t *netlist)
7170 {
7171
7172 printf("NETLIST %s: ", netlist->netlist);
7173
7174 FOREACH_CLUSTER(netlist->clusters) {
7175 printf("%d ", cluster->c);
7176
7177 } FOREACH_END;
7178 printf("\n");
7179 }
7180
7181 #define REMOVE_ROUTING(x) x->netlist->routed = g_list_remove(x->netlist->routed, x); \
7182 r->routednets = g_list_remove(r->routednets, x); \
7183 r->failednets = g_list_prepend(r->failednets, x)
7184
7185 #define INSERT_ROUTING(x) x->netlist->routed = g_list_prepend(x->netlist->routed, x); \
7186 r->routednets = g_list_prepend(r->routednets, x); \
7187 r->failednets = g_list_remove(r->failednets, x)
7188
7189 gint
7190 roar_route(toporouter_t *r, toporouter_route_t *routedata, gint threshold)
7191 {
7192 gint intfails = 0;
7193 GList *netlists = NULL, *routed = NULL;
7194
7195 g_assert(!routedata->path);
7196
7197 if(routedata->src->c == routedata->dest->c) {
7198 printf("ERROR: attempt to route already complete route\n");
7199 g_assert(routedata->src->c != routedata->dest->c);
7200 }
7201
7202 routedata->src->pc = routedata->src->c;
7203 routedata->dest->pc = routedata->dest->c;
7204 routedata->psrc = routedata->src;
7205 routedata->pdest = routedata->dest;
7206
7207 r->flags |= TOPOROUTER_FLAG_LEASTINVALID;
7208 if(route(r, routedata, 0)) {
7209 GList *conflicts, *j;
7210
7211 INSERT_ROUTING(routedata);
7212
7213 conflicts = route_conflicts(routedata);
7214 cluster_merge(routedata);
7215
7216 r->flags &= ~TOPOROUTER_FLAG_LEASTINVALID;
7217
7218 j = conflicts;
7219 while(j) {
7220 toporouter_route_t *conflict = TOPOROUTER_ROUTE(j->data);
7221 if(!g_list_find(netlists, conflict->netlist))
7222 netlists = g_list_prepend(netlists, conflict->netlist);
7223
7224 route_checkpoint(conflict, routedata);
7225
7226 REMOVE_ROUTING(conflict);
7227 j = j->next;
7228 }
7229
7230 netlists = g_list_prepend(netlists, routedata->netlist);
7231 netlists_recalculate(netlists, NULL);
7232
7233 j = conflicts;
7234 while(j) {
7235 toporouter_route_t *conflict = TOPOROUTER_ROUTE(j->data);
7236 g_assert(conflict->src->c != conflict->dest->c);
7237 if(route(r, conflict, 0)) {
7238 cluster_merge(conflict);
7239
7240 routed = g_list_prepend(routed, conflict);
7241
7242 INSERT_ROUTING(conflict);
7243
7244 netlist_recalculate(conflict->netlist, NULL);
7245
7246 }else{
7247 if(++intfails >= threshold) {
7248 GList *i = routed;
7249 while(i) {
7250 toporouter_route_t *intconflict = TOPOROUTER_ROUTE(i->data);
7251 REMOVE_ROUTING(intconflict);
7252 delete_route(intconflict, 1);
7253 i = i->next;
7254 }
7255 delete_route(routedata, 1);
7256 i = g_list_last(conflicts);
7257 while(i) {
7258 toporouter_route_t *intconflict = TOPOROUTER_ROUTE(i->data);
7259
7260 route_restore(intconflict);
7261 INSERT_ROUTING(intconflict);
7262
7263 i = i->prev;
7264 }
7265 REMOVE_ROUTING(routedata);
7266 intfails = 0;
7267 netlists_recalculate(netlists, NULL);
7268 goto roar_route_end;
7269 }
7270
7271 }
7272 j = j->next;
7273 }
7274
7275
7276 netlists_recalculate(netlists, NULL);
7277
7278 intfails--;
7279 roar_route_end:
7280 g_list_free(conflicts);
7281 g_list_free(netlists);
7282
7283 }else{
7284 r->flags &= ~TOPOROUTER_FLAG_LEASTINVALID;
7285 }
7286
7287 g_list_free(routed);
7288 return intfails;
7289 }
7290
7291 gint
7292 roar_router(toporouter_t *r, gint failcount, gint threshold)
7293 {
7294 gint pfailcount = failcount +1;
7295
7296 Message(_("ROAR router: "));
7297 for(guint j=0;j<6;j++) {
7298 GList *failed = g_list_copy(r->failednets), *k = failed;
7299
7300 k = failed;
7301 while(k) {
7302 failcount += roar_route(r, TOPOROUTER_ROUTE(k->data), threshold);
7303 k = k->next;
7304 }
7305 g_list_free(failed);
7306
7307 printf("\tROAR pass %d - %d routed - %d failed\n", j, g_list_length(r->routednets), g_list_length(r->failednets));
7308
7309 if(!failcount || failcount >= pfailcount) {
7310 Message(_("%d nets remaining\n"), failcount);
7311 break;
7312 }
7313 Message(_("%d -> "), failcount);
7314 pfailcount = failcount;
7315 }
7316
7317 return failcount;
7318 }
7319
7320 gint
7321 route_detour_compare(toporouter_route_t **a, toporouter_route_t **b)
7322 { return ((*b)->score - (*b)->detourscore) - ((*a)->score - (*a)->detourscore); }
7323
7324
7325
7326 void
7327 roar_detour_route(toporouter_t *r, toporouter_route_t *data)
7328 {
7329 gdouble pscore = data->score, nscore = 0.;
7330 GList *netlists = NULL;
7331
7332 route_checkpoint(data, NULL);
7333
7334 REMOVE_ROUTING(data);
7335
7336 netlists = g_list_prepend(NULL, data->netlist);
7337 netlists_recalculate(netlists, NULL);
7338
7339 r->flags |= TOPOROUTER_FLAG_LEASTINVALID;
7340 if(route(r, data, 0)) {
7341 GList *conflicts, *j;
7342
7343 nscore = data->score;
7344 conflicts = route_conflicts(data);
7345
7346 INSERT_ROUTING(data);
7347
7348 r->flags &= ~TOPOROUTER_FLAG_LEASTINVALID;
7349
7350 j = conflicts;
7351 while(j) {
7352 toporouter_route_t *conflict = TOPOROUTER_ROUTE(j->data);
7353
7354 if(!g_list_find(netlists, conflict->netlist))
7355 netlists = g_list_prepend(netlists, conflict->netlist);
7356 pscore += conflict->score;
7357
7358 route_checkpoint(conflict, NULL);
7359 REMOVE_ROUTING(conflict);
7360
7361 j = j->next;
7362 }
7363 netlists_recalculate(netlists, NULL);
7364
7365 j = conflicts;
7366 while(j) {
7367 toporouter_route_t *conflict = TOPOROUTER_ROUTE(j->data);
7368
7369 if(route(r, conflict, 0)) {
7370 cluster_merge(conflict);
7371 INSERT_ROUTING(conflict);
7372 nscore += conflict->score;
7373 }else{
7374 j = j->prev;
7375 goto roar_detour_route_rollback_int;
7376 }
7377 j = j->next;
7378 }
7379
7380 if(nscore > pscore) {
7381 j = g_list_last(conflicts);
7382 roar_detour_route_rollback_int:
7383 REMOVE_ROUTING(data);
7384
7385 while(j) {
7386 toporouter_route_t *conflict = TOPOROUTER_ROUTE(j->data);
7387 REMOVE_ROUTING(conflict);
7388 delete_route(conflict, 1);
7389 j = j->prev;
7390 }
7391
7392 j = g_list_last(conflicts);
7393 while(j) {
7394 toporouter_route_t *conflict = TOPOROUTER_ROUTE(j->data);
7395 route_restore(conflict);
7396 INSERT_ROUTING(conflict);
7397 j = j->prev;
7398 }
7399 delete_route(data, 1);
7400
7401 goto roar_detour_route_rollback_exit;
7402
7403 }
7404
7405 g_list_free(conflicts);
7406 }else{
7407 r->flags &= ~TOPOROUTER_FLAG_LEASTINVALID;
7408 roar_detour_route_rollback_exit:
7409 route_restore(data);
7410 INSERT_ROUTING(data);
7411 }
7412 netlists_recalculate(netlists, NULL);
7413
7414 g_list_free(netlists);
7415 }
7416
7417 void
7418 detour_router(toporouter_t *r)
7419 {
7420 GList *i = r->routednets;
7421 guint n = g_list_length(r->routednets);
7422 GPtrArray* scores = g_ptr_array_sized_new(n);
7423
7424 while(i) {
7425 toporouter_route_t *curroute = TOPOROUTER_ROUTE(i->data);
7426 curroute->score = path_score(r, curroute->path);
7427 g_ptr_array_add(scores, i->data);
7428 i = i->next;
7429 }
7430
7431 g_ptr_array_sort(scores, (GCompareFunc) route_detour_compare);
7432
7433 r->flags |= TOPOROUTER_FLAG_DETOUR;
7434
7435 for(toporouter_route_t **i = (toporouter_route_t **) scores->pdata; i < (toporouter_route_t **) scores->pdata + scores->len; i++) {
7436 toporouter_route_t *curroute = (*i);
7437
7438 if(finite(curroute->score) && finite(curroute->detourscore)) {
7439 // printf("%15s %15f \t %8f,%8f - %8f,%8f\n", (*i)->src->netlist + 2, (*i)->score - (*i)->detourscore,
7440 // vx(curroute->mergebox1->point), vy(curroute->mergebox1->point),
7441 // vx(curroute->mergebox2->point), vy(curroute->mergebox2->point));
7442
7443 if(curroute->score - curroute->detourscore > ROAR_DETOUR_THRESHOLD) {
7444 roar_detour_route(r, curroute);
7445 }else break;
7446
7447 }
7448 }
7449 printf("\n");
7450
7451 r->flags ^= TOPOROUTER_FLAG_DETOUR;
7452
7453 g_ptr_array_free(scores, TRUE);
7454
7455 }
7456
7457 gint
7458 rubix_router(toporouter_t *r, gint failcount)
7459 {
7460 GList *i, *ordering;
7461 order_nets_preroute_greedy(r, r->failednets, &ordering);
7462
7463 i = ordering;
7464 while(i) {
7465 toporouter_route_t *data = TOPOROUTER_ROUTE(i->data);
7466
7467 if(route(r, data, 0)) {
7468 INSERT_ROUTING(data);
7469 cluster_merge(data);
7470 failcount--;
7471 }
7472
7473 i = i->next;
7474 }
7475
7476 g_list_free(ordering);
7477
7478 return failcount;
7479 }
7480
7481 guint
7482 hybrid_router(toporouter_t *r)
7483 {
7484 gint failcount = g_list_length(r->failednets);
7485 r->flags |= TOPOROUTER_FLAG_AFTERORDER;
7486 r->flags |= TOPOROUTER_FLAG_AFTERRUBIX;
7487 failcount = rubix_router(r, failcount);
7488
7489 Message(_("RUBIX router: %d nets remaining\n"), failcount);
7490 printf(_("RUBIX router: %d nets remaining\n"), failcount);
7491
7492 r->flags |= TOPOROUTER_FLAG_GOFAR;
7493
7494 for(guint i=0;i<6 && failcount;i++) {
7495 if(i % 2 == 1) {
7496 failcount = roar_router(r, failcount, 5);
7497 // printf("THRESH 5\n");
7498 }else{
7499 failcount = roar_router(r, failcount, 2);
7500 // printf("THRESH 2\n");
7501 }
7502
7503 detour_router(r);
7504 }
7505
7506 failcount = roar_router(r, failcount, 2);
7507 detour_router(r);
7508
7509 return failcount;
7510 }
7511
7512 void
7513 parse_arguments(toporouter_t *r, int argc, char **argv)
7514 {
7515 int i, tempint;
7516 for(i=0;i<argc;i++) {
7517 if(sscanf(argv[i], "viacost=%d", &tempint)) {
7518 /* XXX: We should be using PCB's generic value with unit parsing here */
7519 r->viacost = (double)tempint;
7520 }else if(sscanf(argv[i], "l%d", &tempint)) {
7521 gdouble *layer = (gdouble *)malloc(sizeof(gdouble));
7522 *layer = (double)tempint;
7523 r->keepoutlayers = g_list_prepend(r->keepoutlayers, layer);
7524 }
7525 }
7526
7527 for (guint group = 0; group < max_group; group++)
7528 for (i = 0; i < PCB->LayerGroups.Number[group]; i++)
7529 if ((PCB->LayerGroups.Entries[group][i] < max_copper_layer) && !(PCB->Data->Layer[PCB->LayerGroups.Entries[group][i]].On)) {
7530 gdouble *layer = (gdouble *)malloc(sizeof(gdouble));
7531 *layer = (double)group;
7532 r->keepoutlayers = g_list_prepend(r->keepoutlayers, layer);
7533 }
7534
7535 }
7536
7537 toporouter_t *
7538 toporouter_new(void)
7539 {
7540 toporouter_t *r = (toporouter_t *)calloc(1, sizeof(toporouter_t));
7541 time_t ltime;
7542
7543 gettimeofday(&r->starttime, NULL);
7544
7545 r->netsort = netscore_pairwise_compare;
7546
7547 r->destboxes = NULL;
7548 r->consumeddestboxes = NULL;
7549
7550 r->paths = NULL;
7551
7552 r->layers = NULL;
7553 r->flags = 0;
7554 r->viacost = VIA_COST_AS_DISTANCE;
7555
7556 r->wiring_score = 0.;
7557
7558 r->bboxes = NULL;
7559 r->bboxtree = NULL;
7560
7561 r->netlists = g_ptr_array_new();
7562 r->routes = g_ptr_array_new();
7563
7564 r->keepoutlayers = NULL;
7565
7566 r->routednets = NULL;
7567 r->failednets = NULL;
7568
7569 ltime=time(NULL);
7570
7571 gts_predicates_init();
7572
7573 Message(_("Topological Autorouter\n"));
7574 Message(_("Started %s"),asctime(localtime(&ltime)));
7575 Message(_("-------------------------------------\n"));
7576 return r;
7577 }
7578
7579 void
7580 acquire_twonets(toporouter_t *r)
7581 {
7582 RAT_LOOP(PCB->Data);
7583 if( TEST_FLAG(SELECTEDFLAG, line) ) import_route(r, line);
7584 END_LOOP;
7585 // /*
7586 if(!r->routes->len) {
7587 RAT_LOOP(PCB->Data);
7588 import_route(r, line);
7589 END_LOOP;
7590 }
7591 // */
7592
7593 }
7594
7595 toporouter_netlist_t *
7596 find_netlist_by_name(toporouter_t *r, char *name)
7597 {
7598 FOREACH_NETLIST(r->netlists) {
7599 if(!strcmp(netlist->netlist, name)) return netlist;
7600 } FOREACH_END;
7601 return NULL;
7602 }
7603
7604 gint
7605 toporouter_set_pair(toporouter_t *r, toporouter_netlist_t *n1, toporouter_netlist_t *n2)
7606 {
7607 if(!n1 || !n2) return 0;
7608 n1->pair = n2;
7609 n2->pair = n1;
7610 return 1;
7611 }
7612
7613 static int
7614 toporouter (int argc, char **argv, Coord x, Coord y)
7615 {
7616 toporouter_t *r = toporouter_new();
7617 parse_arguments(r, argc, argv);
7618 import_geometry(r);
7619 acquire_twonets(r);
7620
7621 //if(!toporouter_set_pair(r, find_netlist_by_name(r, " DRAM_DQS_N"), find_netlist_by_name(r, " DRAM_DQS"))) {
7622 // printf("Couldn't associate pair\n");
7623 //}
7624
7625 hybrid_router(r);
7626 /*
7627 for(gint i=0;i<groupcount();i++) {
7628 gts_surface_foreach_edge(r->layers[i].surface, space_edge, NULL);
7629 }
7630 {
7631 int i;
7632 for(i=0;i<groupcount();i++) {
7633 char buffer[256];
7634 sprintf(buffer, "route%d.png", i);
7635 toporouter_draw_surface(r, r->layers[i].surface, buffer, 1024, 1024, 2, NULL, i, NULL);
7636 }
7637 }
7638 */
7639 toporouter_export(r);
7640 toporouter_free(r);
7641
7642 SaveUndoSerialNumber ();
7643 DeleteRats (false);
7644 RestoreUndoSerialNumber ();
7645 AddAllRats (false, NULL);
7646 RestoreUndoSerialNumber ();
7647 IncrementUndoSerialNumber ();
7648 Redraw ();
7649
7650 return 0;
7651 }
7652
7653 static int
7654 escape (int argc, char **argv, Coord x, Coord y)
7655 {
7656 guint dir, viax, viay;
7657 gdouble pitch, length, dx, dy;
7658
7659 if(argc != 1) return 0;
7660
7661 dir = atoi(argv[0]);
7662
7663
7664 ALLPAD_LOOP(PCB->Data);
7665 {
7666 if( TEST_FLAG(SELECTEDFLAG, pad) ) {
7667 PinType *via;
7668 LineType *line;
7669
7670 PadType *pad0 = element->Pad->data;
7671 PadType *pad1 = g_list_next (element->Pad)->data;
7672
7673 pitch = sqrt (pow (abs (pad0->Point1.X - pad1->Point1.X), 2) +
7674 pow (abs (pad0->Point1.Y - pad1->Point1.Y), 2) );
7675 length = sqrt(pow(pitch,2) + pow(pitch,2)) / 2.;
7676
7677 dx = length * sin(M_PI/4.);
7678 dy = length * cos(M_PI/4.);
7679
7680 switch(dir) {
7681 case 1:
7682 viax = pad->Point1.X - dx;
7683 viay = pad->Point1.Y + dy;
7684 break;
7685 case 3:
7686 viax = pad->Point1.X + dx;
7687 viay = pad->Point1.Y + dy;
7688 break;
7689 case 9:
7690 viax = pad->Point1.X + dx;
7691 viay = pad->Point1.Y - dy;
7692 break;
7693 case 7:
7694 viax = pad->Point1.X - dx;
7695 viay = pad->Point1.Y - dy;
7696 break;
7697 case 2:
7698 viax = pad->Point1.X;
7699 viay = pad->Point1.Y + (pitch/2);
7700 break;
7701 case 8:
7702 viax = pad->Point1.X;
7703 viay = pad->Point1.Y - (pitch/2);
7704 break;
7705 case 4:
7706 viax = pad->Point1.X - (pitch/2);
7707 viay = pad->Point1.Y;
7708 break;
7709 case 6:
7710 viax = pad->Point1.X + (pitch/2);
7711 viay = pad->Point1.Y;
7712 break;
7713 default:
7714 printf("ERROR: escape() with bad direction (%d)\n", dir);
7715 return 1;
7716 }
7717
7718 if ((via = CreateNewVia (PCB->Data, viax, viay,
7719 Settings.ViaThickness, 2 * Settings.Keepaway,
7720 0, Settings.ViaDrillingHole, NULL,
7721 NoFlags ())) != NULL)
7722 {
7723 AddObjectToCreateUndoList (VIA_TYPE, via, via, via);
7724 // if (gui->shift_is_pressed ())
7725 // ChangeObjectThermal (VIA_TYPE, via, via, via, PCB->ThermStyle);
7726 DrawVia (via);
7727 if((line = CreateDrawnLineOnLayer (CURRENT, pad->Point1.X + 1., pad->Point1.Y + 1., viax + 1., viay + 1.,
7728 Settings.LineThickness, 2 * Settings.Keepaway,
7729 NoFlags())))
7730 {
7731
7732 AddObjectToCreateUndoList (LINE_TYPE, CURRENT, line, line);
7733 DrawLine (CURRENT, line);
7734
7735 }
7736
7737 }
7738
7739 }
7740 }
7741 END_LOOP;
7742 END_LOOP;
7743
7744 IncrementUndoSerialNumber ();
7745 Draw ();
7746 return 0;
7747 }
7748
7749 static HID_Action toporouter_action_list[] = {
7750 {"Escape", N_("Select a set of pads"), escape,
7751 N_("Pad escape"), N_("Escape()")},
7752 {"Toporouter", N_("Select net(s)"), toporouter,
7753 N_("Topological autorouter"), N_("Toporouter()")}
7754 };
7755
7756 REGISTER_ACTIONS (toporouter_action_list)
7757
7758 void hid_toporouter_init()
7759 {
7760 register_toporouter_action_list();
7761 }
7762
Work being undertaken on PCB by Peter Clifton