581bee231054d8c8bf5563c72434c7105a0fb741
1 #define __NR_ARENA_ITEM_C__
3 /*
4 * RGBA display list system for inkscape
5 *
6 * Author:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 *
9 * Copyright (C) 2001-2002 Lauris Kaplinski
10 * Copyright (C) 2001 Ximian, Inc.
11 *
12 * Released under GNU GPL, read the file 'COPYING' for more information
13 */
15 #define noNR_ARENA_ITEM_VERBOSE
16 #define noNR_ARENA_ITEM_DEBUG_CASCADE
19 #include <libnr/nr-blit.h>
20 #include <libnr/nr-pixops.h>
21 #include "nr-arena.h"
22 #include "nr-arena-item.h"
23 #include "gc-core.h"
25 #include "nr-filter.h"
26 #include "libnr/nr-rect.h"
27 #include "nr-arena-group.h"
29 namespace GC = Inkscape::GC;
31 static void nr_arena_item_class_init (NRArenaItemClass *klass);
32 static void nr_arena_item_init (NRArenaItem *item);
33 static void nr_arena_item_private_finalize (NRObject *object);
35 #ifdef arena_item_tile_cache
36 bool insert_cache(NRArenaItem* owner,int th,int tv,NRPixBlock *ipb,NRPixBlock *mpb,double activity,double duration);
37 void remove_caches(NRArenaItem* owner);
38 bool test_cache(NRArenaItem* owner,int th,int tv,NRPixBlock &ipb,NRPixBlock &mpb,bool &hasMask);
39 #endif
41 static NRObjectClass *parent_class;
43 NRType
44 nr_arena_item_get_type (void)
45 {
46 static NRType type = 0;
47 if (!type) {
48 type = nr_object_register_type (NR_TYPE_OBJECT,
49 "NRArenaItem",
50 sizeof (NRArenaItemClass),
51 sizeof (NRArenaItem),
52 (void (*) (NRObjectClass *)) nr_arena_item_class_init,
53 (void (*) (NRObject *)) nr_arena_item_init);
54 }
55 return type;
56 }
58 static void
59 nr_arena_item_class_init (NRArenaItemClass *klass)
60 {
61 NRObjectClass *object_class;
63 object_class = (NRObjectClass *) klass;
65 parent_class = ((NRObjectClass *) klass)->parent;
67 object_class->finalize = nr_arena_item_private_finalize;
68 object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaItem>;
69 }
71 static void
72 nr_arena_item_init (NRArenaItem *item)
73 {
74 item->arena = NULL;
75 item->parent = NULL;
76 item->next = item->prev = NULL;
78 item->key = 0;
80 item->state = 0;
81 item->sensitive = TRUE;
82 item->visible = TRUE;
84 memset(&item->bbox, 0, sizeof(item->bbox));
85 item->transform = NULL;
86 item->opacity = 255;
87 item->render_opacity = FALSE;
89 #ifdef arena_item_tile_cache
90 item->activity=0.0;
91 item->skipCaching=false;
92 #endif
94 item->transform = NULL;
95 item->clip = NULL;
96 item->mask = NULL;
97 item->px = NULL;
98 item->data = NULL;
99 item->filter = NULL;
100 item->background_pb = NULL;
101 item->background_new = false;
102 }
104 static void
105 nr_arena_item_private_finalize (NRObject *object)
106 {
107 NRArenaItem *item=static_cast<NRArenaItem *>(object);
109 #ifdef arena_item_tile_cache
110 remove_caches(item);
111 #endif
113 item->px = NULL;
114 item->transform = NULL;
116 ((NRObjectClass *) (parent_class))->finalize (object);
117 }
119 NRArenaItem *
120 nr_arena_item_children (NRArenaItem *item)
121 {
122 nr_return_val_if_fail (item != NULL, NULL);
123 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL);
125 if (NR_ARENA_ITEM_VIRTUAL (item, children))
126 return NR_ARENA_ITEM_VIRTUAL (item, children) (item);
128 return NULL;
129 }
131 NRArenaItem *
132 nr_arena_item_last_child (NRArenaItem *item)
133 {
134 nr_return_val_if_fail (item != NULL, NULL);
135 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL);
137 if (NR_ARENA_ITEM_VIRTUAL (item, last_child)) {
138 return NR_ARENA_ITEM_VIRTUAL (item, last_child) (item);
139 } else {
140 NRArenaItem *ref;
141 ref = nr_arena_item_children (item);
142 if (ref) while (ref->next) ref = ref->next;
143 return ref;
144 }
145 }
147 void
148 nr_arena_item_add_child (NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
149 {
150 nr_return_if_fail (item != NULL);
151 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
152 nr_return_if_fail (child != NULL);
153 nr_return_if_fail (NR_IS_ARENA_ITEM (child));
154 nr_return_if_fail (child->parent == NULL);
155 nr_return_if_fail (child->prev == NULL);
156 nr_return_if_fail (child->next == NULL);
157 nr_return_if_fail (child->arena == item->arena);
158 nr_return_if_fail (child != ref);
159 nr_return_if_fail (!ref || NR_IS_ARENA_ITEM (ref));
160 nr_return_if_fail (!ref || (ref->parent == item));
162 if (NR_ARENA_ITEM_VIRTUAL (item, add_child))
163 NR_ARENA_ITEM_VIRTUAL (item, add_child) (item, child, ref);
164 }
166 void
167 nr_arena_item_remove_child (NRArenaItem *item, NRArenaItem *child)
168 {
169 nr_return_if_fail (item != NULL);
170 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
171 nr_return_if_fail (child != NULL);
172 nr_return_if_fail (NR_IS_ARENA_ITEM (child));
173 nr_return_if_fail (child->parent == item);
175 if (NR_ARENA_ITEM_VIRTUAL (item, remove_child))
176 NR_ARENA_ITEM_VIRTUAL (item, remove_child) (item, child);
177 }
179 void
180 nr_arena_item_set_child_position (NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
181 {
182 nr_return_if_fail (item != NULL);
183 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
184 nr_return_if_fail (child != NULL);
185 nr_return_if_fail (NR_IS_ARENA_ITEM (child));
186 nr_return_if_fail (child->parent == item);
187 nr_return_if_fail (!ref || NR_IS_ARENA_ITEM (ref));
188 nr_return_if_fail (!ref || (ref->parent == item));
190 if (NR_ARENA_ITEM_VIRTUAL (item, set_child_position))
191 NR_ARENA_ITEM_VIRTUAL (item, set_child_position) (item, child, ref);
192 }
194 NRArenaItem *
195 nr_arena_item_ref (NRArenaItem *item)
196 {
197 nr_object_ref ((NRObject *) item);
199 return item;
200 }
202 NRArenaItem *
203 nr_arena_item_unref (NRArenaItem *item)
204 {
205 nr_object_unref ((NRObject *) item);
207 return NULL;
208 }
210 unsigned int
211 nr_arena_item_invoke_update (NRArenaItem *item, NRRectL *area, NRGC *gc, unsigned int state, unsigned int reset)
212 {
213 NRGC childgc(gc);
215 nr_return_val_if_fail (item != NULL, NR_ARENA_ITEM_STATE_INVALID);
216 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NR_ARENA_ITEM_STATE_INVALID);
217 nr_return_val_if_fail (!(state & NR_ARENA_ITEM_STATE_INVALID), NR_ARENA_ITEM_STATE_INVALID);
219 #ifdef NR_ARENA_ITEM_DEBUG_CASCADE
220 printf ("Update %s:%p %x %x %x\n", nr_type_name_from_instance ((GTypeInstance *) item), item, state, item->state, reset);
221 #endif
223 /* return if in error */
224 if (item->state & NR_ARENA_ITEM_STATE_INVALID) return item->state;
225 /* Set reset flags according to propagation status */
226 if (item->propagate) {
227 reset |= ~item->state;
228 item->propagate = FALSE;
229 }
230 /* Reset our state */
231 item->state &= ~reset;
232 /* Return if NOP */
233 if (!(~item->state & state)) return item->state;
234 /* Test whether to return immediately */
235 if (area && (item->state & NR_ARENA_ITEM_STATE_BBOX)) {
236 if (!nr_rect_l_test_intersect (area, &item->bbox)) return item->state;
237 }
239 /* Reset image cache, if not to be kept */
240 if (!(item->state & NR_ARENA_ITEM_STATE_IMAGE) && (item->px)) {
241 item->px = NULL;
242 }
243 #ifdef arena_item_tile_cache
244 remove_caches(item);
245 #endif
247 /* Set up local gc */
248 childgc = *gc;
249 if (item->transform) {
250 nr_matrix_multiply (&childgc.transform, item->transform, &childgc.transform);
251 }
252 /* Remember the transformation matrix */
253 item->ctm = childgc.transform;
255 /* Invoke the real method */
256 item->state = NR_ARENA_ITEM_VIRTUAL (item, update) (item, area, &childgc, state, reset);
257 if (item->state & NR_ARENA_ITEM_STATE_INVALID) return item->state;
258 /* Enlarge the bounding box to contain filter effects */
259 if(item->filter) {
260 item->filter->bbox_enlarge(item->bbox);
261 }
263 /* Clipping */
264 if (item->clip) {
265 unsigned int newstate;
266 newstate = nr_arena_item_invoke_update (item->clip, area, &childgc, state, reset);
267 if (newstate & NR_ARENA_ITEM_STATE_INVALID) {
268 item->state |= NR_ARENA_ITEM_STATE_INVALID;
269 return item->state;
270 }
271 nr_rect_l_intersect (&item->bbox, &item->bbox, &item->clip->bbox);
272 }
273 /* Masking */
274 if (item->mask) {
275 unsigned int newstate;
276 newstate = nr_arena_item_invoke_update (item->mask, area, &childgc, state, reset);
277 if (newstate & NR_ARENA_ITEM_STATE_INVALID) {
278 item->state |= NR_ARENA_ITEM_STATE_INVALID;
279 return item->state;
280 }
281 nr_rect_l_intersect (&item->bbox, &item->bbox, &item->mask->bbox);
282 }
284 return item->state;
285 }
287 /**
288 * Render item to pixblock.
289 *
290 * \return Has NR_ARENA_ITEM_STATE_RENDER set on success.
291 */
293 unsigned int nr_arena_item_invoke_render(NRArenaItem *item, NRRectL const *area, NRPixBlock *pb, unsigned int flags)
294 {
295 NRRectL carea;
296 NRPixBlock *dpb;
297 NRPixBlock cpb;
298 unsigned int state;
300 nr_return_val_if_fail (item != NULL, NR_ARENA_ITEM_STATE_INVALID);
301 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NR_ARENA_ITEM_STATE_INVALID);
302 nr_return_val_if_fail (item->state & NR_ARENA_ITEM_STATE_BBOX, item->state);
304 #ifdef NR_ARENA_ITEM_VERBOSE
305 printf ("Invoke render %p: %d %d - %d %d\n", item, area->x0, area->y0, area->x1, area->y1);
306 #endif
308 #ifdef arena_item_tile_cache
309 item->activity*=0.5;
310 #endif
312 /* If we are outside bbox just return successfully */
313 if (!item->visible) return item->state | NR_ARENA_ITEM_STATE_RENDER;
314 nr_rect_l_intersect (&carea, area, &item->bbox);
315 if (nr_rect_l_test_empty (&carea)) return item->state | NR_ARENA_ITEM_STATE_RENDER;
316 if(item->filter) {
317 nr_rect_l_enlarge(&carea, item->filter->get_enlarge(item->ctm));
318 nr_rect_l_intersect(&carea, &carea, &item->bbox);
319 }
321 if (item->px) {
322 /* Has cache pixblock, render this and return */
323 nr_pixblock_setup_extern (&cpb, NR_PIXBLOCK_MODE_R8G8B8A8P,
324 /* fixme: This probably cannot overflow, because we render only if visible */
325 /* fixme: and pixel cache is there only for small items */
326 /* fixme: But this still needs extra check (Lauris) */
327 item->bbox.x0, item->bbox.y0,
328 item->bbox.x1, item->bbox.y1,
329 item->px, 4 * (item->bbox.x1 - item->bbox.x0), FALSE, FALSE);
330 nr_blit_pixblock_pixblock (pb, &cpb);
331 nr_pixblock_release (&cpb);
332 pb->empty = FALSE;
333 return item->state | NR_ARENA_ITEM_STATE_RENDER;
334 }
336 dpb = pb;
337 bool canCache=false;
338 #ifdef arena_item_tile_cache
339 bool checkCache=false;
340 int tile_h=0,tile_v=0;
341 #endif
342 /* Setup cache if we can */
343 if ((!(flags & NR_ARENA_ITEM_RENDER_NO_CACHE)) &&
344 (carea.x0 <= item->bbox.x0) && (carea.y0 <= item->bbox.y0) &&
345 (carea.x1 >= item->bbox.x1) && (carea.y1 >= item->bbox.y1) &&
346 (((item->bbox.x1 - item->bbox.x0) * (item->bbox.y1 - item->bbox.y0)) <= 4096)) {
347 // Item bbox is fully in renderable area and size is acceptable
348 carea.x0 = item->bbox.x0;
349 carea.y0 = item->bbox.y0;
350 carea.x1 = item->bbox.x1;
351 carea.y1 = item->bbox.y1;
352 item->px = new (GC::ATOMIC) unsigned char[4 * (carea.x1 - carea.x0) * (carea.y1 - carea.y0)];
353 nr_pixblock_setup_extern (&cpb, NR_PIXBLOCK_MODE_R8G8B8A8P,
354 carea.x0, carea.y0, carea.x1, carea.y1,
355 item->px, 4 * (carea.x1 - carea.x0), TRUE, TRUE);
356 cpb.visible_area = pb->visible_area;
357 dpb = &cpb;
358 // Set nocache flag for downstream rendering
359 flags |= NR_ARENA_ITEM_RENDER_NO_CACHE;
360 } else {
361 #ifdef arena_item_tile_cache
362 if ( item->skipCaching ) {
363 } else {
364 int tl=area->x0&(~127);
365 int tt=area->y0&(~127);
366 if ( area->x1 <= tl+128 && area->y1 <= tt+128 ) {
367 checkCache=true;
368 tile_h=tl/128;
369 tile_v=tt/128;
370 int surf=(area->x1-area->x0)*(area->y1-area->y0);
371 if ( surf >= 4096 ) {
372 canCache=true;
373 carea.x0=tl;
374 carea.y0=tt;
375 carea.x1=tl+128;
376 carea.y1=tt+128;
377 }
378 }
379 }
380 #endif
381 }
383 #ifdef arena_item_tile_cache
384 item->activity+=1.0;
385 #endif
387 #ifdef arena_item_tile_cache
388 if ( checkCache ) {
389 NRPixBlock ipb, mpb;
390 bool hasMask;
391 if ( test_cache(item,tile_h,tile_v,ipb,mpb,hasMask) ) {
392 // youpi! c'etait deja cache
393 if ( hasMask ) {
394 nr_blit_pixblock_pixblock_mask (dpb, &ipb, &mpb);
395 } else if ( ((item->opacity != 255) && !item->render_opacity) ) {
396 nr_blit_pixblock_pixblock_alpha (dpb, &ipb, item->opacity);
397 } else {
398 nr_blit_pixblock_pixblock (pb, &ipb);
399 }
400 pb->empty = FALSE;
401 return item->state | NR_ARENA_ITEM_STATE_RENDER;
402 }
403 }
404 #endif
405 if ( canCache ) {
406 #ifdef arena_item_tile_cache
407 // nota: exclusif de dpb != pb, donc pas de cas particulier a la fin
408 NRPixBlock ipb, mpb;
410 // struct timeval start_time,end_time;
411 // gettimeofday(&start_time,NULL);
412 GTimeVal start_time,end_time;
413 g_get_current_time (&start_time);
414 int duration=0;
416 /* Setup and render item buffer */
417 nr_pixblock_setup_fast (&ipb, NR_PIXBLOCK_MODE_R8G8B8A8P, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
418 ipb.visible_area = pb->visible_area;
419 state = NR_ARENA_ITEM_VIRTUAL (item, render) (item, &carea, &ipb, flags);
420 if (state & NR_ARENA_ITEM_STATE_INVALID) {
421 /* Clean up and return error */
422 nr_pixblock_release (&ipb);
423 if (dpb != pb) nr_pixblock_release (dpb);
424 item->state |= NR_ARENA_ITEM_STATE_INVALID;
425 return item->state;
426 }
427 ipb.empty = FALSE;
429 if (item->clip || item->mask) {
430 /* Setup mask pixblock */
431 nr_pixblock_setup_fast (&mpb, NR_PIXBLOCK_MODE_A8, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
432 mpb.visible_area = pb->visible_area;
433 /* Do clip if needed */
434 if (item->clip) {
435 state = nr_arena_item_invoke_clip (item->clip, &carea, &mpb);
436 if (state & NR_ARENA_ITEM_STATE_INVALID) {
437 /* Clean up and return error */
438 nr_pixblock_release (&mpb);
439 nr_pixblock_release (&ipb);
440 if (dpb != pb) nr_pixblock_release (dpb);
441 item->state |= NR_ARENA_ITEM_STATE_INVALID;
442 return item->state;
443 }
444 mpb.empty = FALSE;
445 }
446 /* Do mask if needed */
447 if (item->mask) {
448 NRPixBlock tpb;
449 /* Set up yet another temporary pixblock */
450 nr_pixblock_setup_fast (&tpb, NR_PIXBLOCK_MODE_R8G8B8A8N, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
451 tpb.visible_area = pb->visible_area;
452 state = NR_ARENA_ITEM_VIRTUAL (item->mask, render) (item->mask, &carea, &tpb, flags);
453 if (state & NR_ARENA_ITEM_STATE_INVALID) {
454 /* Clean up and return error */
455 nr_pixblock_release (&tpb);
456 nr_pixblock_release (&mpb);
457 nr_pixblock_release (&ipb);
458 if (dpb != pb) nr_pixblock_release (dpb);
459 item->state |= NR_ARENA_ITEM_STATE_INVALID;
460 return item->state;
461 }
462 /* Composite with clip */
463 if (item->clip) {
464 int x, y;
465 for (y = carea.y0; y < carea.y1; y++) {
466 unsigned char *s, *d;
467 s = NR_PIXBLOCK_PX (&tpb) + (y - carea.y0) * tpb.rs;
468 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
469 for (x = carea.x0; x < carea.x1; x++) {
470 unsigned int m;
471 m = ((s[0] + s[1] + s[2]) * s[3] + 127) / (3 * 255);
472 d[0] = NR_PREMUL (d[0], m);
473 s += 4;
474 d += 1;
475 }
476 }
477 } else {
478 int x, y;
479 for (y = carea.y0; y < carea.y1; y++) {
480 unsigned char *s, *d;
481 s = NR_PIXBLOCK_PX (&tpb) + (y - carea.y0) * tpb.rs;
482 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
483 for (x = carea.x0; x < carea.x1; x++) {
484 unsigned int m;
485 m = ((s[0] + s[1] + s[2]) * s[3] + 127) / (3 * 255);
486 d[0] = m;
487 s += 4;
488 d += 1;
489 }
490 }
491 mpb.empty = FALSE;
492 }
493 nr_pixblock_release (&tpb);
494 }
495 /* Multiply with opacity if needed */
496 if ((item->opacity != 255) && !item->render_opacity && item->arena->rendermode != RENDERMODE_OUTLINE) {
497 int x, y;
498 unsigned int a;
499 a = item->opacity;
500 for (y = carea.y0; y < carea.y1; y++) {
501 unsigned char *d;
502 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
503 for (x = carea.x0; x < carea.x1; x++) {
504 d[0] = NR_PREMUL (d[0], a);
505 d += 1;
506 }
507 }
508 }
509 /* Compose rendering pixblock int destination */
510 // gettimeofday(&end_time,NULL);
511 g_get_current_time (&end_time);
512 duration=(end_time.tv_sec-start_time.tv_sec)*1000+(end_time.tv_usec-start_time.tv_usec)/1000;
513 if ( !(ipb.empty) ) {
514 nr_blit_pixblock_pixblock_mask (dpb, &ipb, &mpb);
515 if ( insert_cache(item,tile_h,tile_v,&ipb,&mpb,item->activity,(double)duration) ) {
516 } else {
517 nr_pixblock_release (&mpb);
518 nr_pixblock_release (&ipb);
519 }
520 dpb->empty = FALSE;
521 } else {
522 nr_pixblock_release (&ipb);
523 }
524 } else if ( ((item->opacity != 255) && !item->render_opacity && item->arena->rendermode != RENDERMODE_OUTLINE) ) {
525 /* Opacity only */
526 // gettimeofday(&end_time,NULL);
527 g_get_current_time (&end_time);
528 duration=(end_time.tv_sec-start_time.tv_sec)*1000+(end_time.tv_usec-start_time.tv_usec)/1000;
529 if ( !(ipb.empty) ) {
530 nr_blit_pixblock_pixblock_alpha (dpb, &ipb, item->opacity);
531 if ( insert_cache(item,tile_h,tile_v,&ipb,NULL,item->activity,(double)duration) ) {
532 } else {
533 nr_pixblock_release (&ipb);
534 }
535 dpb->empty = FALSE;
536 } else {
537 nr_pixblock_release (&ipb);
538 }
539 } else {
540 // gettimeofday(&end_time,NULL);
541 g_get_current_time (&end_time);
542 duration=(end_time.tv_sec-start_time.tv_sec)*1000+(end_time.tv_usec-start_time.tv_usec)/1000;
543 if ( !(ipb.empty) ) {
544 nr_blit_pixblock_pixblock (dpb, &ipb);
545 if ( insert_cache(item,tile_h,tile_v,&ipb,NULL,item->activity,(double)duration) ) {
546 } else {
547 nr_pixblock_release (&ipb);
548 }
549 dpb->empty = FALSE;
550 } else {
551 nr_pixblock_release (&ipb);
552 }
553 }
554 #endif
555 } else {
556 /* Determine, whether we need temporary buffer */
557 if (item->clip || item->mask
558 || ((item->opacity != 255) && !item->render_opacity && item->arena->rendermode != RENDERMODE_OUTLINE)
559 || item->filter || item->background_new
560 || (item->parent && item->parent->background_pb) )
561 {
562 NRPixBlock ipb, mpb;
564 /* Setup and render item buffer */
565 nr_pixblock_setup_fast (&ipb, NR_PIXBLOCK_MODE_R8G8B8A8P, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
566 /* If background access is used, save the pixblock address.
567 * This address is set to NULL at the end of this block */
568 if (item->background_new
569 || (item->parent && item->parent->background_pb)) {
570 item->background_pb = &ipb;
571 }
572 ipb.visible_area = pb->visible_area;
573 state = NR_ARENA_ITEM_VIRTUAL (item, render) (item, &carea, &ipb, flags);
574 if (state & NR_ARENA_ITEM_STATE_INVALID) {
575 /* Clean up and return error */
576 nr_pixblock_release (&ipb);
577 if (dpb != pb) nr_pixblock_release (dpb);
578 item->state |= NR_ARENA_ITEM_STATE_INVALID;
579 return item->state;
580 }
581 ipb.empty = FALSE;
583 /* Run filtering, if a filter is set for this object */
584 if(item->filter) {
585 item->filter->render(item, &ipb);
586 }
588 if (item->clip || item->mask) {
589 /* Setup mask pixblock */
590 nr_pixblock_setup_fast (&mpb, NR_PIXBLOCK_MODE_A8, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
591 mpb.visible_area = pb->visible_area;
592 /* Do clip if needed */
593 if (item->clip) {
594 state = nr_arena_item_invoke_clip (item->clip, &carea, &mpb);
595 if (state & NR_ARENA_ITEM_STATE_INVALID) {
596 /* Clean up and return error */
597 nr_pixblock_release (&mpb);
598 nr_pixblock_release (&ipb);
599 if (dpb != pb) nr_pixblock_release (dpb);
600 item->state |= NR_ARENA_ITEM_STATE_INVALID;
601 return item->state;
602 }
603 mpb.empty = FALSE;
604 }
605 /* Do mask if needed */
606 if (item->mask) {
607 NRPixBlock tpb;
608 /* Set up yet another temporary pixblock */
609 nr_pixblock_setup_fast (&tpb, NR_PIXBLOCK_MODE_R8G8B8A8N, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
610 tpb.visible_area = pb->visible_area;
611 state = NR_ARENA_ITEM_VIRTUAL (item->mask, render) (item->mask, &carea, &tpb, flags);
612 if (state & NR_ARENA_ITEM_STATE_INVALID) {
613 /* Clean up and return error */
614 nr_pixblock_release (&tpb);
615 nr_pixblock_release (&mpb);
616 nr_pixblock_release (&ipb);
617 if (dpb != pb) nr_pixblock_release (dpb);
618 item->state |= NR_ARENA_ITEM_STATE_INVALID;
619 return item->state;
620 }
621 /* Composite with clip */
622 if (item->clip) {
623 int x, y;
624 for (y = carea.y0; y < carea.y1; y++) {
625 unsigned char *s, *d;
626 s = NR_PIXBLOCK_PX (&tpb) + (y - carea.y0) * tpb.rs;
627 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
628 for (x = carea.x0; x < carea.x1; x++) {
629 unsigned int m;
630 m = NR_PREMUL_112(s[0]+s[1]+s[2], s[3]);
631 d[0] = FAST_DIV_ROUND<3*255*255>(NR_PREMUL_123(d[0], m));
632 s += 4;
633 d += 1;
634 }
635 }
636 } else {
637 int x, y;
638 for (y = carea.y0; y < carea.y1; y++) {
639 unsigned char *s, *d;
640 s = NR_PIXBLOCK_PX (&tpb) + (y - carea.y0) * tpb.rs;
641 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
642 for (x = carea.x0; x < carea.x1; x++) {
643 unsigned int m;
644 m = NR_PREMUL_112(s[0]+s[1]+s[2], s[3]);
645 d[0] = FAST_DIV_ROUND<3*255>(m);
646 s += 4;
647 d += 1;
648 }
649 }
650 mpb.empty = FALSE;
651 }
652 nr_pixblock_release (&tpb);
653 }
654 /* Multiply with opacity if needed */
655 if ((item->opacity != 255) && !item->render_opacity && item->arena->rendermode != RENDERMODE_OUTLINE) {
656 int x, y;
657 unsigned int a;
658 a = item->opacity;
659 for (y = carea.y0; y < carea.y1; y++) {
660 unsigned char *d;
661 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
662 for (x = carea.x0; x < carea.x1; x++) {
663 d[0] = NR_PREMUL_111 (d[0], a);
664 d += 1;
665 }
666 }
667 }
668 /* Compose rendering pixblock int destination */
669 nr_blit_pixblock_pixblock_mask (dpb, &ipb, &mpb);
670 nr_pixblock_release (&mpb);
671 /* This pointer wouldn't be valid outside this block, so clear it */
672 item->background_pb = NULL;
673 } else {
674 /* Opacity only */
675 nr_blit_pixblock_pixblock_alpha (dpb, &ipb, item->opacity);
676 }
677 nr_pixblock_release (&ipb);
678 dpb->empty = FALSE;
679 } else {
680 /* Just render */
681 state = NR_ARENA_ITEM_VIRTUAL (item, render) (item, &carea, dpb, flags);
682 if (state & NR_ARENA_ITEM_STATE_INVALID) {
683 /* Clean up and return error */
684 if (dpb != pb) nr_pixblock_release (dpb);
685 item->state |= NR_ARENA_ITEM_STATE_INVALID;
686 return item->state;
687 }
688 dpb->empty = FALSE;
689 }
691 if (dpb != pb) {
692 /* Have to blit from cache */
693 nr_blit_pixblock_pixblock (pb, dpb);
694 nr_pixblock_release (dpb);
695 pb->empty = FALSE;
696 item->state |= NR_ARENA_ITEM_STATE_IMAGE;
697 }
698 }
699 return item->state | NR_ARENA_ITEM_STATE_RENDER;
700 }
702 unsigned int
703 nr_arena_item_invoke_clip (NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
704 {
705 nr_return_val_if_fail (item != NULL, NR_ARENA_ITEM_STATE_INVALID);
706 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NR_ARENA_ITEM_STATE_INVALID);
707 /* we originally short-circuited if the object state included
708 * NR_ARENA_ITEM_STATE_CLIP (and showed a warning on the console);
709 * anyone know why we stopped doing so?
710 */
711 nr_return_val_if_fail ((pb->area.x1 - pb->area.x0) >= (area->x1 - area->x0), NR_ARENA_ITEM_STATE_INVALID);
712 nr_return_val_if_fail ((pb->area.y1 - pb->area.y0) >= (area->y1 - area->y0), NR_ARENA_ITEM_STATE_INVALID);
714 #ifdef NR_ARENA_ITEM_VERBOSE
715 printf ("Invoke clip by %p: %d %d - %d %d, item bbox %d %d - %d %d\n", item, area->x0, area->y0, area->x1, area->y1, (&item->bbox)->x0, (&item->bbox)->y0, (&item->bbox)->x1, (&item->bbox)->y1);
716 #endif
718 if (item->visible && nr_rect_l_test_intersect (area, &item->bbox)) {
719 /* Need render that item */
720 if (((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))->clip) {
721 return ((NRArenaItemClass *) NR_OBJECT_GET_CLASS(item))->clip (item, area, pb);
722 }
723 }
725 return item->state;
726 }
728 NRArenaItem *
729 nr_arena_item_invoke_pick (NRArenaItem *item, NR::Point p, double delta, unsigned int sticky)
730 {
731 nr_return_val_if_fail (item != NULL, NULL);
732 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL);
734 // Sometimes there's no BBOX in item->state, reason unknown (bug 992817); I made this not an assert to remove the warning
735 if (!(item->state & NR_ARENA_ITEM_STATE_BBOX) || !(item->state & NR_ARENA_ITEM_STATE_PICK))
736 return NULL;
738 if (!sticky && !(item->visible && item->sensitive)) return NULL;
740 // TODO: rewrite using NR::Rect
741 const double x = p[NR::X];
742 const double y = p[NR::Y];
744 if (((x + delta) >= item->bbox.x0) &&
745 ((x - delta) < item->bbox.x1) &&
746 ((y + delta) >= item->bbox.y0) &&
747 ((y - delta) < item->bbox.y1)) {
748 if (((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))->pick)
749 return ((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))->pick (item, p, delta, sticky);
750 }
752 return NULL;
753 }
755 void
756 nr_arena_item_request_update (NRArenaItem *item, unsigned int reset, unsigned int propagate)
757 {
758 nr_return_if_fail (item != NULL);
759 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
760 nr_return_if_fail (!(reset & NR_ARENA_ITEM_STATE_INVALID));
762 if (propagate && !item->propagate) item->propagate = TRUE;
764 if (item->state & reset) {
765 item->state &= ~reset;
766 if (item->parent) {
767 nr_arena_item_request_update (item->parent, reset, FALSE);
768 } else {
769 nr_arena_request_update (item->arena, item);
770 }
771 }
772 }
774 void
775 nr_arena_item_request_render (NRArenaItem *item)
776 {
777 nr_return_if_fail (item != NULL);
778 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
780 nr_arena_request_render_rect (item->arena, &item->bbox);
781 }
783 /* Public */
785 NRArenaItem *
786 nr_arena_item_unparent (NRArenaItem *item)
787 {
788 nr_return_val_if_fail (item != NULL, NULL);
789 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL);
791 nr_arena_item_request_render (item);
793 if (item->parent) {
794 nr_arena_item_remove_child (item->parent, item);
795 }
797 return NULL;
798 }
800 void
801 nr_arena_item_append_child (NRArenaItem *parent, NRArenaItem *child)
802 {
803 nr_return_if_fail (parent != NULL);
804 nr_return_if_fail (NR_IS_ARENA_ITEM (parent));
805 nr_return_if_fail (child != NULL);
806 nr_return_if_fail (NR_IS_ARENA_ITEM (child));
807 nr_return_if_fail (parent->arena == child->arena);
808 nr_return_if_fail (child->parent == NULL);
809 nr_return_if_fail (child->prev == NULL);
810 nr_return_if_fail (child->next == NULL);
812 nr_arena_item_add_child (parent, child, nr_arena_item_last_child (parent));
813 }
815 void
816 nr_arena_item_set_transform(NRArenaItem *item, NR::Matrix const &transform)
817 {
818 NRMatrix const t(transform);
819 nr_arena_item_set_transform(item, &t);
820 }
822 void
823 nr_arena_item_set_transform(NRArenaItem *item, NRMatrix const *transform)
824 {
825 const NRMatrix *ms, *md;
827 nr_return_if_fail (item != NULL);
828 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
830 if (!transform && !item->transform) return;
832 md = (item->transform) ? item->transform : &NR_MATRIX_IDENTITY;
833 ms = (transform) ? transform : &NR_MATRIX_IDENTITY;
835 if (!NR_MATRIX_DF_TEST_CLOSE (md, ms, NR_EPSILON)) {
836 nr_arena_item_request_render (item);
837 if (!transform || nr_matrix_test_identity (transform, NR_EPSILON)) {
838 /* Set to identity affine */
839 item->transform = NULL;
840 } else {
841 if (!item->transform) item->transform = new (GC::ATOMIC) NRMatrix();
842 *item->transform = *transform;
843 }
844 nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, TRUE);
845 }
846 }
848 void
849 nr_arena_item_set_opacity (NRArenaItem *item, double opacity)
850 {
851 nr_return_if_fail (item != NULL);
852 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
854 nr_arena_item_request_render (item);
856 item->opacity = (unsigned int) (opacity * 255.9999);
857 }
859 void
860 nr_arena_item_set_sensitive (NRArenaItem *item, unsigned int sensitive)
861 {
862 nr_return_if_fail (item != NULL);
863 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
865 /* fixme: mess with pick/repick... */
867 item->sensitive = sensitive;
868 }
870 void
871 nr_arena_item_set_visible (NRArenaItem *item, unsigned int visible)
872 {
873 nr_return_if_fail (item != NULL);
874 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
876 item->visible = visible;
878 nr_arena_item_request_render (item);
879 }
881 void
882 nr_arena_item_set_clip (NRArenaItem *item, NRArenaItem *clip)
883 {
884 nr_return_if_fail (item != NULL);
885 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
886 nr_return_if_fail (!clip || NR_IS_ARENA_ITEM (clip));
888 if (clip != item->clip) {
889 nr_arena_item_request_render (item);
890 if (item->clip) item->clip = nr_arena_item_detach (item, item->clip);
891 if (clip) item->clip = nr_arena_item_attach (item, clip, NULL, NULL);
892 nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, TRUE);
893 }
894 }
896 void
897 nr_arena_item_set_mask (NRArenaItem *item, NRArenaItem *mask)
898 {
899 nr_return_if_fail (item != NULL);
900 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
901 nr_return_if_fail (!mask || NR_IS_ARENA_ITEM (mask));
903 if (mask != item->mask) {
904 nr_arena_item_request_render (item);
905 if (item->mask) item->mask = nr_arena_item_detach (item, item->mask);
906 if (mask) item->mask = nr_arena_item_attach (item, mask, NULL, NULL);
907 nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, TRUE);
908 }
909 }
911 void
912 nr_arena_item_set_order (NRArenaItem *item, int order)
913 {
914 NRArenaItem *children, *child, *ref;
915 int pos;
917 nr_return_if_fail (item != NULL);
918 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
920 if (!item->parent) return;
922 children = nr_arena_item_children (item->parent);
924 ref = NULL;
925 pos = 0;
926 for (child = children; child != NULL; child = child->next) {
927 if (pos >= order) break;
928 if (child != item) {
929 ref = child;
930 pos += 1;
931 }
932 }
934 nr_arena_item_set_child_position (item->parent, item, ref);
935 }
937 /** Returns a background image for use with filter effects. */
938 NRPixBlock *nr_arena_item_get_background (NRArenaItem const *item, int depth)
939 {
940 NRPixBlock *pb;
941 if (!item->background_pb) return NULL;
942 if (item->background_new) {
943 pb = new NRPixBlock();
944 nr_pixblock_setup_fast(pb, item->background_pb->mode,
945 item->background_pb->area.x0,
946 item->background_pb->area.y0,
947 item->background_pb->area.x1,
948 item->background_pb->area.y1, true);
949 } else if (item->parent) {
950 pb = nr_arena_item_get_background(item->parent, depth + 1);
951 } else return NULL;
953 if (depth > 0)
954 nr_blit_pixblock_pixblock(pb, item->background_pb);
956 return pb;
957 }
959 /* Helpers */
961 NRArenaItem *
962 nr_arena_item_attach (NRArenaItem *parent, NRArenaItem *child, NRArenaItem *prev, NRArenaItem *next)
963 {
964 nr_return_val_if_fail (parent != NULL, NULL);
965 nr_return_val_if_fail (NR_IS_ARENA_ITEM (parent), NULL);
966 nr_return_val_if_fail (child != NULL, NULL);
967 nr_return_val_if_fail (NR_IS_ARENA_ITEM (child), NULL);
968 nr_return_val_if_fail (child->parent == NULL, NULL);
969 nr_return_val_if_fail (child->prev == NULL, NULL);
970 nr_return_val_if_fail (child->next == NULL, NULL);
971 nr_return_val_if_fail (!prev || NR_IS_ARENA_ITEM (prev), NULL);
972 nr_return_val_if_fail (!prev || (prev->parent == parent), NULL);
973 nr_return_val_if_fail (!prev || (prev->next == next), NULL);
974 nr_return_val_if_fail (!next || NR_IS_ARENA_ITEM (next), NULL);
975 nr_return_val_if_fail (!next || (next->parent == parent), NULL);
976 nr_return_val_if_fail (!next || (next->prev == prev), NULL);
978 child->parent = parent;
979 child->prev = prev;
980 child->next = next;
982 if (prev) prev->next = child;
983 if (next) next->prev = child;
985 return child;
986 }
988 NRArenaItem *
989 nr_arena_item_detach (NRArenaItem *parent, NRArenaItem *child)
990 {
991 NRArenaItem *prev, *next;
993 nr_return_val_if_fail (parent != NULL, NULL);
994 nr_return_val_if_fail (NR_IS_ARENA_ITEM (parent), NULL);
995 nr_return_val_if_fail (child != NULL, NULL);
996 nr_return_val_if_fail (NR_IS_ARENA_ITEM (child), NULL);
997 nr_return_val_if_fail (child->parent == parent, NULL);
999 prev = child->prev;
1000 next = child->next;
1002 child->parent = NULL;
1003 child->prev = NULL;
1004 child->next = NULL;
1006 if (prev) prev->next = next;
1007 if (next) next->prev = prev;
1009 return next;
1010 }
1012 /*
1013 *
1014 * caches
1015 *
1016 */
1018 #ifdef arena_item_tile_cache
1019 typedef struct cache_entry {
1020 int key;
1021 double score;
1022 NRArenaItem* owner;
1023 int th,tv;
1024 int prev,next;
1025 NRPixBlock ipb;
1026 bool hasMask;
1027 NRPixBlock mpb;
1028 } cache_entry;
1030 int hash_max=2048,hash_fill=1024;
1032 int *keys=NULL;
1033 int nbCch=0;
1035 int nbEnt=0,maxEnt=0;
1036 cache_entry* entries=NULL;
1038 //#define tile_cache_stats
1039 #ifdef tile_cache_stats
1040 double hits=0,misses=0;
1041 int hitMissCount=0;
1042 #endif
1044 int hash_that(NRArenaItem* owner,int th,int tv)
1045 {
1046 int res=GPOINTER_TO_INT(owner);
1047 res*=17;
1048 res+=th;
1049 res*=59;
1050 res+=tv;
1051 res*=217;
1052 if ( res < 0 ) res=-res;
1053 res%=hash_max;
1054 return res;
1055 }
1057 bool test_cache(NRArenaItem* owner,int th,int tv,NRPixBlock &ipb,NRPixBlock &mpb,bool &hasMask)
1058 {
1059 if ( keys == NULL ) {
1060 hash_max = prefs_get_int_attribute ("options.arenatilescachesize", "value", 2048);
1061 hash_fill=(hash_max*3)/4;
1062 keys=(int*)malloc(hash_max*sizeof(int));
1063 for (int i=0;i<hash_max;i++) keys[i]=-1;
1064 }
1065 int key=hash_that(owner,th,tv);
1066 if ( keys[key] < 0 ) {
1067 #ifdef tile_cache_stats
1068 misses+=1.0;
1069 #endif
1070 return false;
1071 }
1072 int cur=keys[key];
1073 while ( cur >= 0 && cur < nbEnt ) {
1074 if ( entries[cur].owner == owner && entries[cur].th == th && entries[cur].tv == tv ) {
1075 hasMask=entries[cur].hasMask;
1076 ipb=entries[cur].ipb;
1077 mpb=entries[cur].mpb;
1078 #ifdef tile_cache_stats
1079 hits+=1.0;
1080 #endif
1081 return true;
1082 }
1083 cur=entries[cur].next;
1084 }
1085 #ifdef tile_cache_stats
1086 misses+=1.0;
1087 #endif
1088 return false;
1089 }
1090 void remove_one_cache(int no)
1091 {
1092 if ( no < 0 || no >= nbEnt ) return;
1094 nr_pixblock_release(&entries[no].ipb);
1095 if ( entries[no].hasMask ) nr_pixblock_release(&entries[no].mpb);
1097 if ( entries[no].prev >= 0 ) entries[entries[no].prev].next=entries[no].next;
1098 if ( entries[no].next >= 0 ) entries[entries[no].next].prev=entries[no].prev;
1099 if ( entries[no].prev < 0 ) keys[entries[no].key]=entries[no].next;
1100 entries[no].prev=entries[no].next=entries[no].key=-1;
1102 if ( no == nbEnt-1 ) {
1103 nbEnt--;
1104 return;
1105 }
1106 entries[no]=entries[--nbEnt];
1107 if ( entries[no].prev >= 0 ) entries[entries[no].prev].next=no;
1108 if ( entries[no].next >= 0 ) entries[entries[no].next].prev=no;
1109 if ( entries[no].prev < 0 ) keys[entries[no].key]=no;
1110 }
1111 void remove_caches(NRArenaItem* owner)
1112 {
1113 if ( keys == NULL ) {
1114 hash_max = prefs_get_int_attribute ("options.arenatilescachesize", "value", 2048);
1115 hash_fill=(hash_max*3)/4;
1116 keys=(int*)malloc(hash_max*sizeof(int));
1117 for (int i=0;i<hash_max;i++) keys[i]=-1;
1118 }
1119 for (int i=nbEnt-1;i>=0;i--) {
1120 if ( entries[i].owner == owner ) {
1121 remove_one_cache(i);
1122 }
1123 }
1124 }
1125 void age_cache(void)
1126 {
1127 for (int i=0;i<nbEnt;i++) entries[i].score*=0.95;
1128 }
1129 bool insert_cache(NRArenaItem* owner,int th,int tv,NRPixBlock *ipb,NRPixBlock *mpb,double activity,double duration)
1130 {
1131 if ( keys == NULL ) {
1132 hash_max = prefs_get_int_attribute ("options.arenatilescachesize", "value", 2048);
1133 hash_fill=(hash_max*3)/4;
1134 keys=(int*)malloc(hash_max*sizeof(int));
1135 for (int i=0;i<hash_max;i++) keys[i]=-1;
1136 }
1137 for (int i=0;i<nbEnt;i++) entries[i].score*=0.95;
1138 #ifdef tile_cache_stats
1139 hits*=0.95;
1140 misses*=0.95;
1141 hitMissCount++;
1142 if ( hitMissCount > 100 ) {
1143 hitMissCount=0;
1144 printf("hit/miss = %f used/total=%i/%i\n",(misses>0.001)?hits/misses:100000.0,nbEnt,hash_max); // localizing ok
1145 }
1146 #endif
1147 int key=hash_that(owner,th,tv);
1148 double nScore=/*activity**/duration;
1150 if ( keys[key] >= 0 ) {
1151 int cur=keys[key];
1152 while ( cur >= 0 && cur < nbEnt ) {
1153 if ( entries[cur].owner == owner && entries[cur].th == th && entries[cur].tv == tv ) {
1154 remove_one_cache(cur);
1155 break;
1156 }
1157 cur=entries[cur].next;
1158 }
1159 }
1161 bool doAdd=false;
1162 if ( nbEnt < hash_fill ) {
1163 doAdd=true;
1164 } else {
1165 double worstS=entries[0].score;
1166 int worstE=0;
1167 for (int i=1;i<nbEnt;i++) {
1168 if ( entries[i].score < worstS ) {
1169 worstS=entries[i].score;
1170 worstE=i;
1171 }
1172 }
1173 if ( worstS < nScore ) {
1174 doAdd=true;
1175 remove_one_cache(worstE);
1176 }
1177 }
1178 if ( doAdd == false ) return false;
1179 if ( nbEnt >= maxEnt ) {
1180 maxEnt=2*nbEnt+1;
1181 entries=(cache_entry*)realloc(entries,maxEnt*sizeof(cache_entry));
1182 }
1183 entries[nbEnt].key=key;
1184 entries[nbEnt].score=nScore;
1185 entries[nbEnt].owner=owner;
1186 entries[nbEnt].th=th;
1187 entries[nbEnt].tv=tv;
1188 entries[nbEnt].prev=entries[nbEnt].next=-1;
1189 entries[nbEnt].ipb=*ipb;
1190 if ( mpb ) {
1191 entries[nbEnt].hasMask=true;
1192 entries[nbEnt].mpb=*mpb;
1193 } else {
1194 entries[nbEnt].hasMask=false;
1195 }
1196 entries[nbEnt].next=keys[key];
1197 if ( entries[nbEnt].next >= 0 ) entries[entries[nbEnt].next].prev=nbEnt;
1198 keys[key]=nbEnt;
1200 nbEnt++;
1201 return true;
1202 }
1203 #endif