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 "nr-arena-group.h"
26 static void nr_arena_item_class_init (NRArenaItemClass *klass);
27 static void nr_arena_item_init (NRArenaItem *item);
28 static void nr_arena_item_private_finalize (NRObject *object);
30 #ifdef arena_item_tile_cache
31 bool insert_cache(NRArenaItem* owner,int th,int tv,NRPixBlock *ipb,NRPixBlock *mpb,double activity,double duration);
32 void remove_caches(NRArenaItem* owner);
33 bool test_cache(NRArenaItem* owner,int th,int tv,NRPixBlock &ipb,NRPixBlock &mpb,bool &hasMask);
34 #endif
36 static NRObjectClass *parent_class;
38 NRType
39 nr_arena_item_get_type (void)
40 {
41 static NRType type = 0;
42 if (!type) {
43 type = nr_object_register_type (NR_TYPE_OBJECT,
44 "NRArenaItem",
45 sizeof (NRArenaItemClass),
46 sizeof (NRArenaItem),
47 (void (*) (NRObjectClass *)) nr_arena_item_class_init,
48 (void (*) (NRObject *)) nr_arena_item_init);
49 }
50 return type;
51 }
53 static void
54 nr_arena_item_class_init (NRArenaItemClass *klass)
55 {
56 NRObjectClass *object_class;
58 object_class = (NRObjectClass *) klass;
60 parent_class = ((NRObjectClass *) klass)->parent;
62 object_class->finalize = nr_arena_item_private_finalize;
63 object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaItem>;
64 }
66 static void
67 nr_arena_item_init (NRArenaItem *item)
68 {
69 item->arena = NULL;
70 item->parent = NULL;
71 item->next = item->prev = NULL;
73 item->key = 0;
75 item->state = 0;
76 item->sensitive = TRUE;
77 item->visible = TRUE;
79 memset(&item->bbox, 0, sizeof(item->bbox));
80 item->transform = NULL;
81 item->opacity = 255;
82 item->render_opacity = FALSE;
84 #ifdef arena_item_tile_cache
85 item->activity=0.0;
86 item->skipCaching=false;
87 #endif
89 item->transform = NULL;
90 item->clip = NULL;
91 item->mask = NULL;
92 item->px = NULL;
93 item->data = NULL;
94 }
96 static void
97 nr_arena_item_private_finalize (NRObject *object)
98 {
99 NRArenaItem *item=static_cast<NRArenaItem *>(object);
101 #ifdef arena_item_tile_cache
102 remove_caches(item);
103 #endif
105 if (item->px) {
106 nr_free (item->px);
107 }
109 if (item->transform) {
110 nr_free (item->transform);
111 }
113 ((NRObjectClass *) (parent_class))->finalize (object);
114 }
116 NRArenaItem *
117 nr_arena_item_children (NRArenaItem *item)
118 {
119 nr_return_val_if_fail (item != NULL, NULL);
120 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL);
122 if (NR_ARENA_ITEM_VIRTUAL (item, children))
123 return NR_ARENA_ITEM_VIRTUAL (item, children) (item);
125 return NULL;
126 }
128 NRArenaItem *
129 nr_arena_item_last_child (NRArenaItem *item)
130 {
131 nr_return_val_if_fail (item != NULL, NULL);
132 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL);
134 if (NR_ARENA_ITEM_VIRTUAL (item, last_child)) {
135 return NR_ARENA_ITEM_VIRTUAL (item, last_child) (item);
136 } else {
137 NRArenaItem *ref;
138 ref = nr_arena_item_children (item);
139 if (ref) while (ref->next) ref = ref->next;
140 return ref;
141 }
142 }
144 void
145 nr_arena_item_add_child (NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
146 {
147 nr_return_if_fail (item != NULL);
148 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
149 nr_return_if_fail (child != NULL);
150 nr_return_if_fail (NR_IS_ARENA_ITEM (child));
151 nr_return_if_fail (child->parent == NULL);
152 nr_return_if_fail (child->prev == NULL);
153 nr_return_if_fail (child->next == NULL);
154 nr_return_if_fail (child->arena == item->arena);
155 nr_return_if_fail (child != ref);
156 nr_return_if_fail (!ref || NR_IS_ARENA_ITEM (ref));
157 nr_return_if_fail (!ref || (ref->parent == item));
159 if (NR_ARENA_ITEM_VIRTUAL (item, add_child))
160 NR_ARENA_ITEM_VIRTUAL (item, add_child) (item, child, ref);
161 }
163 void
164 nr_arena_item_remove_child (NRArenaItem *item, NRArenaItem *child)
165 {
166 nr_return_if_fail (item != NULL);
167 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
168 nr_return_if_fail (child != NULL);
169 nr_return_if_fail (NR_IS_ARENA_ITEM (child));
170 nr_return_if_fail (child->parent == item);
172 if (NR_ARENA_ITEM_VIRTUAL (item, remove_child))
173 NR_ARENA_ITEM_VIRTUAL (item, remove_child) (item, child);
174 }
176 void
177 nr_arena_item_set_child_position (NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
178 {
179 nr_return_if_fail (item != NULL);
180 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
181 nr_return_if_fail (child != NULL);
182 nr_return_if_fail (NR_IS_ARENA_ITEM (child));
183 nr_return_if_fail (child->parent == item);
184 nr_return_if_fail (!ref || NR_IS_ARENA_ITEM (ref));
185 nr_return_if_fail (!ref || (ref->parent == item));
187 if (NR_ARENA_ITEM_VIRTUAL (item, set_child_position))
188 NR_ARENA_ITEM_VIRTUAL (item, set_child_position) (item, child, ref);
189 }
191 NRArenaItem *
192 nr_arena_item_ref (NRArenaItem *item)
193 {
194 nr_object_ref ((NRObject *) item);
196 return item;
197 }
199 NRArenaItem *
200 nr_arena_item_unref (NRArenaItem *item)
201 {
202 nr_object_unref ((NRObject *) item);
204 return NULL;
205 }
207 unsigned int
208 nr_arena_item_invoke_update (NRArenaItem *item, NRRectL *area, NRGC *gc, unsigned int state, unsigned int reset)
209 {
210 NRGC childgc(gc);
212 nr_return_val_if_fail (item != NULL, NR_ARENA_ITEM_STATE_INVALID);
213 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NR_ARENA_ITEM_STATE_INVALID);
214 nr_return_val_if_fail (!(state & NR_ARENA_ITEM_STATE_INVALID), NR_ARENA_ITEM_STATE_INVALID);
216 #ifdef NR_ARENA_ITEM_DEBUG_CASCADE
217 printf ("Update %s:%p %x %x %x\n", nr_type_name_from_instance ((GTypeInstance *) item), item, state, item->state, reset);
218 #endif
220 /* return if in error */
221 if (item->state & NR_ARENA_ITEM_STATE_INVALID) return item->state;
222 /* Set reset flags according to propagation status */
223 if (item->propagate) {
224 reset |= ~item->state;
225 item->propagate = FALSE;
226 }
227 /* Reset our state */
228 item->state &= ~reset;
229 /* Return if NOP */
230 if (!(~item->state & state)) return item->state;
231 /* Test whether to return immediately */
232 if (area && (item->state & NR_ARENA_ITEM_STATE_BBOX)) {
233 if (!nr_rect_l_test_intersect (area, &item->bbox)) return item->state;
234 }
236 /* Reset image cache, if not to be kept */
237 if (!(item->state & NR_ARENA_ITEM_STATE_IMAGE) && (item->px)) {
238 nr_free (item->px);
239 item->px = NULL;
240 }
241 #ifdef arena_item_tile_cache
242 remove_caches(item);
243 #endif
245 /* Set up local gc */
246 childgc = *gc;
247 if (item->transform) {
248 nr_matrix_multiply (&childgc.transform, item->transform, &childgc.transform);
249 }
251 /* Invoke the real method */
252 item->state = NR_ARENA_ITEM_VIRTUAL (item, update) (item, area, &childgc, state, reset);
253 if (item->state & NR_ARENA_ITEM_STATE_INVALID) return item->state;
254 /* Clipping */
255 if (item->clip) {
256 unsigned int newstate;
257 newstate = nr_arena_item_invoke_update (item->clip, area, &childgc, state, reset);
258 if (newstate & NR_ARENA_ITEM_STATE_INVALID) {
259 item->state |= NR_ARENA_ITEM_STATE_INVALID;
260 return item->state;
261 }
262 nr_rect_l_intersect (&item->bbox, &item->bbox, &item->clip->bbox);
263 }
264 /* Masking */
265 if (item->mask) {
266 unsigned int newstate;
267 newstate = nr_arena_item_invoke_update (item->mask, area, &childgc, state, reset);
268 if (newstate & NR_ARENA_ITEM_STATE_INVALID) {
269 item->state |= NR_ARENA_ITEM_STATE_INVALID;
270 return item->state;
271 }
272 nr_rect_l_intersect (&item->bbox, &item->bbox, &item->mask->bbox);
273 }
275 return item->state;
276 }
278 /**
279 * Render item to pixblock.
280 *
281 * \return Has NR_ARENA_ITEM_STATE_RENDER set on success.
282 */
284 unsigned int nr_arena_item_invoke_render(NRArenaItem *item, NRRectL const *area, NRPixBlock *pb, unsigned int flags)
285 {
286 NRRectL carea;
287 NRPixBlock *dpb;
288 NRPixBlock cpb;
289 unsigned int state;
291 nr_return_val_if_fail (item != NULL, NR_ARENA_ITEM_STATE_INVALID);
292 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NR_ARENA_ITEM_STATE_INVALID);
293 nr_return_val_if_fail (item->state & NR_ARENA_ITEM_STATE_BBOX, item->state);
295 #ifdef NR_ARENA_ITEM_VERBOSE
296 printf ("Invoke render %p: %d %d - %d %d\n", item, area->x0, area->y0, area->x1, area->y1);
297 #endif
299 #ifdef arena_item_tile_cache
300 item->activity*=0.5;
301 #endif
303 /* If we are outside bbox just return successfully */
304 if (!item->visible) return item->state | NR_ARENA_ITEM_STATE_RENDER;
305 nr_rect_l_intersect (&carea, area, &item->bbox);
306 if (nr_rect_l_test_empty (&carea)) return item->state | NR_ARENA_ITEM_STATE_RENDER;
308 if (item->px) {
309 /* Has cache pixblock, render this and return */
310 nr_pixblock_setup_extern (&cpb, NR_PIXBLOCK_MODE_R8G8B8A8P,
311 /* fixme: This probably cannot overflow, because we render only if visible */
312 /* fixme: and pixel cache is there only for small items */
313 /* fixme: But this still needs extra check (Lauris) */
314 item->bbox.x0, item->bbox.y0,
315 item->bbox.x1, item->bbox.y1,
316 item->px, 4 * (item->bbox.x1 - item->bbox.x0), FALSE, FALSE);
317 nr_blit_pixblock_pixblock (pb, &cpb);
318 nr_pixblock_release (&cpb);
319 pb->empty = FALSE;
320 return item->state | NR_ARENA_ITEM_STATE_RENDER;
321 }
323 dpb = pb;
324 bool canCache=false;
325 #ifdef arena_item_tile_cache
326 bool checkCache=false;
327 int tile_h=0,tile_v=0;
328 #endif
329 /* Setup cache if we can */
330 if ((!(flags & NR_ARENA_ITEM_RENDER_NO_CACHE)) &&
331 (carea.x0 <= item->bbox.x0) && (carea.y0 <= item->bbox.y0) &&
332 (carea.x1 >= item->bbox.x1) && (carea.y1 >= item->bbox.y1) &&
333 (((item->bbox.x1 - item->bbox.x0) * (item->bbox.y1 - item->bbox.y0)) <= 4096)) {
334 // Item bbox is fully in renderable area and size is acceptable
335 carea.x0 = item->bbox.x0;
336 carea.y0 = item->bbox.y0;
337 carea.x1 = item->bbox.x1;
338 carea.y1 = item->bbox.y1;
339 item->px = nr_new (unsigned char, 4 * (carea.x1 - carea.x0) * (carea.y1 - carea.y0));
340 nr_pixblock_setup_extern (&cpb, NR_PIXBLOCK_MODE_R8G8B8A8P,
341 carea.x0, carea.y0, carea.x1, carea.y1,
342 item->px, 4 * (carea.x1 - carea.x0), TRUE, TRUE);
343 dpb = &cpb;
344 // Set nocache flag for downstream rendering
345 flags |= NR_ARENA_ITEM_RENDER_NO_CACHE;
346 } else {
347 #ifdef arena_item_tile_cache
348 if ( item->skipCaching ) {
349 } else {
350 int tl=area->x0&(~127);
351 int tt=area->y0&(~127);
352 if ( area->x1 <= tl+128 && area->y1 <= tt+128 ) {
353 checkCache=true;
354 tile_h=tl/128;
355 tile_v=tt/128;
356 int surf=(area->x1-area->x0)*(area->y1-area->y0);
357 if ( surf >= 4096 ) {
358 canCache=true;
359 carea.x0=tl;
360 carea.y0=tt;
361 carea.x1=tl+128;
362 carea.y1=tt+128;
363 }
364 }
365 }
366 #endif
367 }
369 #ifdef arena_item_tile_cache
370 item->activity+=1.0;
371 #endif
373 #ifdef arena_item_tile_cache
374 if ( checkCache ) {
375 NRPixBlock ipb, mpb;
376 bool hasMask;
377 if ( test_cache(item,tile_h,tile_v,ipb,mpb,hasMask) ) {
378 // youpi! c'etait deja cache
379 if ( hasMask ) {
380 nr_blit_pixblock_pixblock_mask (dpb, &ipb, &mpb);
381 } else if ( ((item->opacity != 255) && !item->render_opacity) ) {
382 nr_blit_pixblock_pixblock_alpha (dpb, &ipb, item->opacity);
383 } else {
384 nr_blit_pixblock_pixblock (pb, &ipb);
385 }
386 pb->empty = FALSE;
387 return item->state | NR_ARENA_ITEM_STATE_RENDER;
388 }
389 }
390 #endif
391 if ( canCache ) {
392 #ifdef arena_item_tile_cache
393 // nota: exclusif de dpb != pb, donc pas de cas particulier a la fin
394 NRPixBlock ipb, mpb;
396 // struct timeval start_time,end_time;
397 // gettimeofday(&start_time,NULL);
398 GTimeVal start_time,end_time;
399 g_get_current_time (&start_time);
400 int duration=0;
402 /* Setup and render item buffer */
403 nr_pixblock_setup_fast (&ipb, NR_PIXBLOCK_MODE_R8G8B8A8P, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
404 state = NR_ARENA_ITEM_VIRTUAL (item, render) (item, &carea, &ipb, flags);
405 if (state & NR_ARENA_ITEM_STATE_INVALID) {
406 /* Clean up and return error */
407 nr_pixblock_release (&ipb);
408 if (dpb != pb) nr_pixblock_release (dpb);
409 item->state |= NR_ARENA_ITEM_STATE_INVALID;
410 return item->state;
411 }
412 ipb.empty = FALSE;
414 if (item->clip || item->mask) {
415 /* Setup mask pixblock */
416 nr_pixblock_setup_fast (&mpb, NR_PIXBLOCK_MODE_A8, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
417 /* Do clip if needed */
418 if (item->clip) {
419 state = nr_arena_item_invoke_clip (item->clip, &carea, &mpb);
420 if (state & NR_ARENA_ITEM_STATE_INVALID) {
421 /* Clean up and return error */
422 nr_pixblock_release (&mpb);
423 nr_pixblock_release (&ipb);
424 if (dpb != pb) nr_pixblock_release (dpb);
425 item->state |= NR_ARENA_ITEM_STATE_INVALID;
426 return item->state;
427 }
428 mpb.empty = FALSE;
429 }
430 /* Do mask if needed */
431 if (item->mask) {
432 NRPixBlock tpb;
433 /* Set up yet another temporary pixblock */
434 nr_pixblock_setup_fast (&tpb, NR_PIXBLOCK_MODE_R8G8B8A8N, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
435 state = NR_ARENA_ITEM_VIRTUAL (item->mask, render) (item->mask, &carea, &tpb, flags);
436 if (state & NR_ARENA_ITEM_STATE_INVALID) {
437 /* Clean up and return error */
438 nr_pixblock_release (&tpb);
439 nr_pixblock_release (&mpb);
440 nr_pixblock_release (&ipb);
441 if (dpb != pb) nr_pixblock_release (dpb);
442 item->state |= NR_ARENA_ITEM_STATE_INVALID;
443 return item->state;
444 }
445 /* Composite with clip */
446 if (item->clip) {
447 int x, y;
448 for (y = carea.y0; y < carea.y1; y++) {
449 unsigned char *s, *d;
450 s = NR_PIXBLOCK_PX (&tpb) + (y - carea.y0) * tpb.rs;
451 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
452 for (x = carea.x0; x < carea.x1; x++) {
453 unsigned int m;
454 m = ((s[0] + s[1] + s[2]) * s[3] + 127) / (3 * 255);
455 d[0] = NR_PREMUL (d[0], m);
456 s += 4;
457 d += 1;
458 }
459 }
460 } else {
461 int x, y;
462 for (y = carea.y0; y < carea.y1; y++) {
463 unsigned char *s, *d;
464 s = NR_PIXBLOCK_PX (&tpb) + (y - carea.y0) * tpb.rs;
465 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
466 for (x = carea.x0; x < carea.x1; x++) {
467 unsigned int m;
468 m = ((s[0] + s[1] + s[2]) * s[3] + 127) / (3 * 255);
469 d[0] = m;
470 s += 4;
471 d += 1;
472 }
473 }
474 mpb.empty = FALSE;
475 }
476 nr_pixblock_release (&tpb);
477 }
478 /* Multiply with opacity if needed */
479 if ((item->opacity != 255) && !item->render_opacity && item->arena->rendermode != RENDERMODE_OUTLINE) {
480 int x, y;
481 unsigned int a;
482 a = item->opacity;
483 for (y = carea.y0; y < carea.y1; y++) {
484 unsigned char *d;
485 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
486 for (x = carea.x0; x < carea.x1; x++) {
487 d[0] = NR_PREMUL (d[0], a);
488 d += 1;
489 }
490 }
491 }
492 /* Compose rendering pixblock int destination */
493 // gettimeofday(&end_time,NULL);
494 g_get_current_time (&end_time);
495 duration=(end_time.tv_sec-start_time.tv_sec)*1000+(end_time.tv_usec-start_time.tv_usec)/1000;
496 if ( !(ipb.empty) ) {
497 nr_blit_pixblock_pixblock_mask (dpb, &ipb, &mpb);
498 if ( insert_cache(item,tile_h,tile_v,&ipb,&mpb,item->activity,(double)duration) ) {
499 } else {
500 nr_pixblock_release (&mpb);
501 nr_pixblock_release (&ipb);
502 }
503 dpb->empty = FALSE;
504 } else {
505 nr_pixblock_release (&ipb);
506 }
507 } else if ( ((item->opacity != 255) && !item->render_opacity && item->arena->rendermode != RENDERMODE_OUTLINE) ) {
508 /* Opacity only */
509 // gettimeofday(&end_time,NULL);
510 g_get_current_time (&end_time);
511 duration=(end_time.tv_sec-start_time.tv_sec)*1000+(end_time.tv_usec-start_time.tv_usec)/1000;
512 if ( !(ipb.empty) ) {
513 nr_blit_pixblock_pixblock_alpha (dpb, &ipb, item->opacity);
514 if ( insert_cache(item,tile_h,tile_v,&ipb,NULL,item->activity,(double)duration) ) {
515 } else {
516 nr_pixblock_release (&ipb);
517 }
518 dpb->empty = FALSE;
519 } else {
520 nr_pixblock_release (&ipb);
521 }
522 } else {
523 // gettimeofday(&end_time,NULL);
524 g_get_current_time (&end_time);
525 duration=(end_time.tv_sec-start_time.tv_sec)*1000+(end_time.tv_usec-start_time.tv_usec)/1000;
526 if ( !(ipb.empty) ) {
527 nr_blit_pixblock_pixblock (dpb, &ipb);
528 if ( insert_cache(item,tile_h,tile_v,&ipb,NULL,item->activity,(double)duration) ) {
529 } else {
530 nr_pixblock_release (&ipb);
531 }
532 dpb->empty = FALSE;
533 } else {
534 nr_pixblock_release (&ipb);
535 }
536 }
537 #endif
538 } else {
539 /* Determine, whether we need temporary buffer */
540 if (item->clip || item->mask || ((item->opacity != 255) && !item->render_opacity && item->arena->rendermode != RENDERMODE_OUTLINE)) {
541 NRPixBlock ipb, mpb;
543 /* Setup and render item buffer */
544 nr_pixblock_setup_fast (&ipb, NR_PIXBLOCK_MODE_R8G8B8A8P, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
545 state = NR_ARENA_ITEM_VIRTUAL (item, render) (item, &carea, &ipb, flags);
546 if (state & NR_ARENA_ITEM_STATE_INVALID) {
547 /* Clean up and return error */
548 nr_pixblock_release (&ipb);
549 if (dpb != pb) nr_pixblock_release (dpb);
550 item->state |= NR_ARENA_ITEM_STATE_INVALID;
551 return item->state;
552 }
553 ipb.empty = FALSE;
555 if (item->clip || item->mask) {
556 /* Setup mask pixblock */
557 nr_pixblock_setup_fast (&mpb, NR_PIXBLOCK_MODE_A8, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
558 /* Do clip if needed */
559 if (item->clip) {
560 state = nr_arena_item_invoke_clip (item->clip, &carea, &mpb);
561 if (state & NR_ARENA_ITEM_STATE_INVALID) {
562 /* Clean up and return error */
563 nr_pixblock_release (&mpb);
564 nr_pixblock_release (&ipb);
565 if (dpb != pb) nr_pixblock_release (dpb);
566 item->state |= NR_ARENA_ITEM_STATE_INVALID;
567 return item->state;
568 }
569 mpb.empty = FALSE;
570 }
571 /* Do mask if needed */
572 if (item->mask) {
573 NRPixBlock tpb;
574 /* Set up yet another temporary pixblock */
575 nr_pixblock_setup_fast (&tpb, NR_PIXBLOCK_MODE_R8G8B8A8N, carea.x0, carea.y0, carea.x1, carea.y1, TRUE);
576 state = NR_ARENA_ITEM_VIRTUAL (item->mask, render) (item->mask, &carea, &tpb, flags);
577 if (state & NR_ARENA_ITEM_STATE_INVALID) {
578 /* Clean up and return error */
579 nr_pixblock_release (&tpb);
580 nr_pixblock_release (&mpb);
581 nr_pixblock_release (&ipb);
582 if (dpb != pb) nr_pixblock_release (dpb);
583 item->state |= NR_ARENA_ITEM_STATE_INVALID;
584 return item->state;
585 }
586 /* Composite with clip */
587 if (item->clip) {
588 int x, y;
589 for (y = carea.y0; y < carea.y1; y++) {
590 unsigned char *s, *d;
591 s = NR_PIXBLOCK_PX (&tpb) + (y - carea.y0) * tpb.rs;
592 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
593 for (x = carea.x0; x < carea.x1; x++) {
594 unsigned int m;
595 m = ((s[0] + s[1] + s[2]) * s[3] + 127) / (3 * 255);
596 d[0] = NR_PREMUL (d[0], m);
597 s += 4;
598 d += 1;
599 }
600 }
601 } else {
602 int x, y;
603 for (y = carea.y0; y < carea.y1; y++) {
604 unsigned char *s, *d;
605 s = NR_PIXBLOCK_PX (&tpb) + (y - carea.y0) * tpb.rs;
606 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
607 for (x = carea.x0; x < carea.x1; x++) {
608 unsigned int m;
609 m = ((s[0] + s[1] + s[2]) * s[3] + 127) / (3 * 255);
610 d[0] = m;
611 s += 4;
612 d += 1;
613 }
614 }
615 mpb.empty = FALSE;
616 }
617 nr_pixblock_release (&tpb);
618 }
619 /* Multiply with opacity if needed */
620 if ((item->opacity != 255) && !item->render_opacity && item->arena->rendermode != RENDERMODE_OUTLINE) {
621 int x, y;
622 unsigned int a;
623 a = item->opacity;
624 for (y = carea.y0; y < carea.y1; y++) {
625 unsigned char *d;
626 d = NR_PIXBLOCK_PX (&mpb) + (y - carea.y0) * mpb.rs;
627 for (x = carea.x0; x < carea.x1; x++) {
628 d[0] = NR_PREMUL (d[0], a);
629 d += 1;
630 }
631 }
632 }
633 /* Compose rendering pixblock int destination */
634 nr_blit_pixblock_pixblock_mask (dpb, &ipb, &mpb);
635 nr_pixblock_release (&mpb);
636 } else {
637 /* Opacity only */
638 nr_blit_pixblock_pixblock_alpha (dpb, &ipb, item->opacity);
639 }
640 nr_pixblock_release (&ipb);
641 dpb->empty = FALSE;
642 } else {
643 /* Just render */
644 state = NR_ARENA_ITEM_VIRTUAL (item, render) (item, &carea, dpb, flags);
645 if (state & NR_ARENA_ITEM_STATE_INVALID) {
646 /* Clean up and return error */
647 if (dpb != pb) nr_pixblock_release (dpb);
648 item->state |= NR_ARENA_ITEM_STATE_INVALID;
649 return item->state;
650 }
651 dpb->empty = FALSE;
652 }
654 if (dpb != pb) {
655 /* Have to blit from cache */
656 nr_blit_pixblock_pixblock (pb, dpb);
657 nr_pixblock_release (dpb);
658 pb->empty = FALSE;
659 item->state |= NR_ARENA_ITEM_STATE_IMAGE;
660 }
661 }
662 return item->state | NR_ARENA_ITEM_STATE_RENDER;
663 }
665 unsigned int
666 nr_arena_item_invoke_clip (NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
667 {
668 nr_return_val_if_fail (item != NULL, NR_ARENA_ITEM_STATE_INVALID);
669 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NR_ARENA_ITEM_STATE_INVALID);
670 /* we originally short-circuited if the object state included
671 * NR_ARENA_ITEM_STATE_CLIP (and showed a warning on the console);
672 * anyone know why we stopped doing so?
673 */
674 nr_return_val_if_fail ((pb->area.x1 - pb->area.x0) >= (area->x1 - area->x0), NR_ARENA_ITEM_STATE_INVALID);
675 nr_return_val_if_fail ((pb->area.y1 - pb->area.y0) >= (area->y1 - area->y0), NR_ARENA_ITEM_STATE_INVALID);
677 #ifdef NR_ARENA_ITEM_VERBOSE
678 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);
679 #endif
681 if (item->visible && nr_rect_l_test_intersect (area, &item->bbox)) {
682 /* Need render that item */
683 if (((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))->clip) {
684 return ((NRArenaItemClass *) NR_OBJECT_GET_CLASS(item))->clip (item, area, pb);
685 }
686 }
688 return item->state;
689 }
691 NRArenaItem *
692 nr_arena_item_invoke_pick (NRArenaItem *item, NR::Point p, double delta, unsigned int sticky)
693 {
694 nr_return_val_if_fail (item != NULL, NULL);
695 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL);
697 // Sometimes there's no BBOX in item->state, reason unknown (bug 992817); I made this not an assert to remove the warning
698 if (!(item->state & NR_ARENA_ITEM_STATE_BBOX) || !(item->state & NR_ARENA_ITEM_STATE_PICK))
699 return NULL;
701 if (!sticky && !(item->visible && item->sensitive)) return NULL;
703 // TODO: rewrite using NR::Rect
704 const double x = p[NR::X];
705 const double y = p[NR::Y];
707 if (((x + delta) >= item->bbox.x0) &&
708 ((x - delta) < item->bbox.x1) &&
709 ((y + delta) >= item->bbox.y0) &&
710 ((y - delta) < item->bbox.y1)) {
711 if (((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))->pick)
712 return ((NRArenaItemClass *) NR_OBJECT_GET_CLASS (item))->pick (item, p, delta, sticky);
713 }
715 return NULL;
716 }
718 void
719 nr_arena_item_request_update (NRArenaItem *item, unsigned int reset, unsigned int propagate)
720 {
721 nr_return_if_fail (item != NULL);
722 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
723 nr_return_if_fail (!(reset & NR_ARENA_ITEM_STATE_INVALID));
725 if (propagate && !item->propagate) item->propagate = TRUE;
727 if (item->state & reset) {
728 item->state &= ~reset;
729 if (item->parent) {
730 nr_arena_item_request_update (item->parent, reset, FALSE);
731 } else {
732 nr_arena_request_update (item->arena, item);
733 }
734 }
735 }
737 void
738 nr_arena_item_request_render (NRArenaItem *item)
739 {
740 nr_return_if_fail (item != NULL);
741 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
743 nr_arena_request_render_rect (item->arena, &item->bbox);
744 }
746 /* Public */
748 NRArenaItem *
749 nr_arena_item_unparent (NRArenaItem *item)
750 {
751 nr_return_val_if_fail (item != NULL, NULL);
752 nr_return_val_if_fail (NR_IS_ARENA_ITEM (item), NULL);
754 nr_arena_item_request_render (item);
756 if (item->parent) {
757 nr_arena_item_remove_child (item->parent, item);
758 }
760 return NULL;
761 }
763 void
764 nr_arena_item_append_child (NRArenaItem *parent, NRArenaItem *child)
765 {
766 nr_return_if_fail (parent != NULL);
767 nr_return_if_fail (NR_IS_ARENA_ITEM (parent));
768 nr_return_if_fail (child != NULL);
769 nr_return_if_fail (NR_IS_ARENA_ITEM (child));
770 nr_return_if_fail (parent->arena == child->arena);
771 nr_return_if_fail (child->parent == NULL);
772 nr_return_if_fail (child->prev == NULL);
773 nr_return_if_fail (child->next == NULL);
775 nr_arena_item_add_child (parent, child, nr_arena_item_last_child (parent));
776 }
778 void
779 nr_arena_item_set_transform(NRArenaItem *item, NR::Matrix const &transform)
780 {
781 NRMatrix const t(transform);
782 nr_arena_item_set_transform(item, &t);
783 }
785 void
786 nr_arena_item_set_transform(NRArenaItem *item, NRMatrix const *transform)
787 {
788 const NRMatrix *ms, *md;
790 nr_return_if_fail (item != NULL);
791 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
793 if (!transform && !item->transform) return;
795 md = (item->transform) ? item->transform : &NR_MATRIX_IDENTITY;
796 ms = (transform) ? transform : &NR_MATRIX_IDENTITY;
798 if (!NR_MATRIX_DF_TEST_CLOSE (md, ms, NR_EPSILON)) {
799 nr_arena_item_request_render (item);
800 if (!transform || nr_matrix_test_identity (transform, NR_EPSILON)) {
801 /* Set to identity affine */
802 if (item->transform) nr_free (item->transform);
803 item->transform = NULL;
804 } else {
805 if (!item->transform) item->transform = nr_new (NRMatrix, 1);
806 *item->transform = *transform;
807 }
808 nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, TRUE);
809 }
810 }
812 void
813 nr_arena_item_set_opacity (NRArenaItem *item, double opacity)
814 {
815 nr_return_if_fail (item != NULL);
816 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
818 nr_arena_item_request_render (item);
820 item->opacity = (unsigned int) (opacity * 255.9999);
821 }
823 void
824 nr_arena_item_set_sensitive (NRArenaItem *item, unsigned int sensitive)
825 {
826 nr_return_if_fail (item != NULL);
827 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
829 /* fixme: mess with pick/repick... */
831 item->sensitive = sensitive;
832 }
834 void
835 nr_arena_item_set_visible (NRArenaItem *item, unsigned int visible)
836 {
837 nr_return_if_fail (item != NULL);
838 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
840 item->visible = visible;
842 nr_arena_item_request_render (item);
843 }
845 void
846 nr_arena_item_set_clip (NRArenaItem *item, NRArenaItem *clip)
847 {
848 nr_return_if_fail (item != NULL);
849 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
850 nr_return_if_fail (!clip || NR_IS_ARENA_ITEM (clip));
852 if (clip != item->clip) {
853 nr_arena_item_request_render (item);
854 if (item->clip) item->clip = nr_arena_item_detach_unref (item, item->clip);
855 if (clip) item->clip = nr_arena_item_attach_ref (item, clip, NULL, NULL);
856 nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, TRUE);
857 }
858 }
860 void
861 nr_arena_item_set_mask (NRArenaItem *item, NRArenaItem *mask)
862 {
863 nr_return_if_fail (item != NULL);
864 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
865 nr_return_if_fail (!mask || NR_IS_ARENA_ITEM (mask));
867 if (mask != item->mask) {
868 nr_arena_item_request_render (item);
869 if (item->mask) item->mask = nr_arena_item_detach_unref (item, item->mask);
870 if (mask) item->mask = nr_arena_item_attach_ref (item, mask, NULL, NULL);
871 nr_arena_item_request_update (item, NR_ARENA_ITEM_STATE_ALL, TRUE);
872 }
873 }
875 void
876 nr_arena_item_set_order (NRArenaItem *item, int order)
877 {
878 NRArenaItem *children, *child, *ref;
879 int pos;
881 nr_return_if_fail (item != NULL);
882 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
884 if (!item->parent) return;
886 children = nr_arena_item_children (item->parent);
888 ref = NULL;
889 pos = 0;
890 for (child = children; child != NULL; child = child->next) {
891 if (pos >= order) break;
892 if (child != item) {
893 ref = child;
894 pos += 1;
895 }
896 }
898 nr_arena_item_set_child_position (item->parent, item, ref);
899 }
901 /* Helpers */
903 NRArenaItem *
904 nr_arena_item_attach_ref (NRArenaItem *parent, NRArenaItem *child, NRArenaItem *prev, NRArenaItem *next)
905 {
906 nr_return_val_if_fail (parent != NULL, NULL);
907 nr_return_val_if_fail (NR_IS_ARENA_ITEM (parent), NULL);
908 nr_return_val_if_fail (child != NULL, NULL);
909 nr_return_val_if_fail (NR_IS_ARENA_ITEM (child), NULL);
910 nr_return_val_if_fail (child->parent == NULL, NULL);
911 nr_return_val_if_fail (child->prev == NULL, NULL);
912 nr_return_val_if_fail (child->next == NULL, NULL);
913 nr_return_val_if_fail (!prev || NR_IS_ARENA_ITEM (prev), NULL);
914 nr_return_val_if_fail (!prev || (prev->parent == parent), NULL);
915 nr_return_val_if_fail (!prev || (prev->next == next), NULL);
916 nr_return_val_if_fail (!next || NR_IS_ARENA_ITEM (next), NULL);
917 nr_return_val_if_fail (!next || (next->parent == parent), NULL);
918 nr_return_val_if_fail (!next || (next->prev == prev), NULL);
920 child->parent = parent;
921 child->prev = prev;
922 child->next = next;
924 if (prev) prev->next = child;
925 if (next) next->prev = child;
927 return child;
928 }
930 NRArenaItem *
931 nr_arena_item_detach_unref (NRArenaItem *parent, NRArenaItem *child)
932 {
933 NRArenaItem *prev, *next;
935 nr_return_val_if_fail (parent != NULL, NULL);
936 nr_return_val_if_fail (NR_IS_ARENA_ITEM (parent), NULL);
937 nr_return_val_if_fail (child != NULL, NULL);
938 nr_return_val_if_fail (NR_IS_ARENA_ITEM (child), NULL);
939 nr_return_val_if_fail (child->parent == parent, NULL);
941 prev = child->prev;
942 next = child->next;
944 child->parent = NULL;
945 child->prev = NULL;
946 child->next = NULL;
948 if (prev) prev->next = next;
949 if (next) next->prev = prev;
951 return next;
952 }
954 /*
955 *
956 * caches
957 *
958 */
960 #ifdef arena_item_tile_cache
961 typedef struct cache_entry {
962 int key;
963 double score;
964 NRArenaItem* owner;
965 int th,tv;
966 int prev,next;
967 NRPixBlock ipb;
968 bool hasMask;
969 NRPixBlock mpb;
970 } cache_entry;
972 int hash_max=2048,hash_fill=1024;
974 int *keys=NULL;
975 int nbCch=0;
977 int nbEnt=0,maxEnt=0;
978 cache_entry* entries=NULL;
980 //#define tile_cache_stats
981 #ifdef tile_cache_stats
982 double hits=0,misses=0;
983 int hitMissCount=0;
984 #endif
986 int hash_that(NRArenaItem* owner,int th,int tv)
987 {
988 int res=GPOINTER_TO_INT(owner);
989 res*=17;
990 res+=th;
991 res*=59;
992 res+=tv;
993 res*=217;
994 if ( res < 0 ) res=-res;
995 res%=hash_max;
996 return res;
997 }
999 bool test_cache(NRArenaItem* owner,int th,int tv,NRPixBlock &ipb,NRPixBlock &mpb,bool &hasMask)
1000 {
1001 if ( keys == NULL ) {
1002 hash_max = prefs_get_int_attribute ("options.arenatilescachesize", "value", 2048);
1003 hash_fill=(hash_max*3)/4;
1004 keys=(int*)malloc(hash_max*sizeof(int));
1005 for (int i=0;i<hash_max;i++) keys[i]=-1;
1006 }
1007 int key=hash_that(owner,th,tv);
1008 if ( keys[key] < 0 ) {
1009 #ifdef tile_cache_stats
1010 misses+=1.0;
1011 #endif
1012 return false;
1013 }
1014 int cur=keys[key];
1015 while ( cur >= 0 && cur < nbEnt ) {
1016 if ( entries[cur].owner == owner && entries[cur].th == th && entries[cur].tv == tv ) {
1017 hasMask=entries[cur].hasMask;
1018 ipb=entries[cur].ipb;
1019 mpb=entries[cur].mpb;
1020 #ifdef tile_cache_stats
1021 hits+=1.0;
1022 #endif
1023 return true;
1024 }
1025 cur=entries[cur].next;
1026 }
1027 #ifdef tile_cache_stats
1028 misses+=1.0;
1029 #endif
1030 return false;
1031 }
1032 void remove_one_cache(int no)
1033 {
1034 if ( no < 0 || no >= nbEnt ) return;
1036 nr_pixblock_release(&entries[no].ipb);
1037 if ( entries[no].hasMask ) nr_pixblock_release(&entries[no].mpb);
1039 if ( entries[no].prev >= 0 ) entries[entries[no].prev].next=entries[no].next;
1040 if ( entries[no].next >= 0 ) entries[entries[no].next].prev=entries[no].prev;
1041 if ( entries[no].prev < 0 ) keys[entries[no].key]=entries[no].next;
1042 entries[no].prev=entries[no].next=entries[no].key=-1;
1044 if ( no == nbEnt-1 ) {
1045 nbEnt--;
1046 return;
1047 }
1048 entries[no]=entries[--nbEnt];
1049 if ( entries[no].prev >= 0 ) entries[entries[no].prev].next=no;
1050 if ( entries[no].next >= 0 ) entries[entries[no].next].prev=no;
1051 if ( entries[no].prev < 0 ) keys[entries[no].key]=no;
1052 }
1053 void remove_caches(NRArenaItem* owner)
1054 {
1055 if ( keys == NULL ) {
1056 hash_max = prefs_get_int_attribute ("options.arenatilescachesize", "value", 2048);
1057 hash_fill=(hash_max*3)/4;
1058 keys=(int*)malloc(hash_max*sizeof(int));
1059 for (int i=0;i<hash_max;i++) keys[i]=-1;
1060 }
1061 for (int i=nbEnt-1;i>=0;i--) {
1062 if ( entries[i].owner == owner ) {
1063 remove_one_cache(i);
1064 }
1065 }
1066 }
1067 void age_cache(void)
1068 {
1069 for (int i=0;i<nbEnt;i++) entries[i].score*=0.95;
1070 }
1071 bool insert_cache(NRArenaItem* owner,int th,int tv,NRPixBlock *ipb,NRPixBlock *mpb,double activity,double duration)
1072 {
1073 if ( keys == NULL ) {
1074 hash_max = prefs_get_int_attribute ("options.arenatilescachesize", "value", 2048);
1075 hash_fill=(hash_max*3)/4;
1076 keys=(int*)malloc(hash_max*sizeof(int));
1077 for (int i=0;i<hash_max;i++) keys[i]=-1;
1078 }
1079 for (int i=0;i<nbEnt;i++) entries[i].score*=0.95;
1080 #ifdef tile_cache_stats
1081 hits*=0.95;
1082 misses*=0.95;
1083 hitMissCount++;
1084 if ( hitMissCount > 100 ) {
1085 hitMissCount=0;
1086 printf("hit/miss = %f used/total=%i/%i\n",(misses>0.001)?hits/misses:100000.0,nbEnt,hash_max); // localizing ok
1087 }
1088 #endif
1089 int key=hash_that(owner,th,tv);
1090 double nScore=/*activity**/duration;
1092 if ( keys[key] >= 0 ) {
1093 int cur=keys[key];
1094 while ( cur >= 0 && cur < nbEnt ) {
1095 if ( entries[cur].owner == owner && entries[cur].th == th && entries[cur].tv == tv ) {
1096 remove_one_cache(cur);
1097 break;
1098 }
1099 cur=entries[cur].next;
1100 }
1101 }
1103 bool doAdd=false;
1104 if ( nbEnt < hash_fill ) {
1105 doAdd=true;
1106 } else {
1107 double worstS=entries[0].score;
1108 int worstE=0;
1109 for (int i=1;i<nbEnt;i++) {
1110 if ( entries[i].score < worstS ) {
1111 worstS=entries[i].score;
1112 worstE=i;
1113 }
1114 }
1115 if ( worstS < nScore ) {
1116 doAdd=true;
1117 remove_one_cache(worstE);
1118 }
1119 }
1120 if ( doAdd == false ) return false;
1121 if ( nbEnt >= maxEnt ) {
1122 maxEnt=2*nbEnt+1;
1123 entries=(cache_entry*)realloc(entries,maxEnt*sizeof(cache_entry));
1124 }
1125 entries[nbEnt].key=key;
1126 entries[nbEnt].score=nScore;
1127 entries[nbEnt].owner=owner;
1128 entries[nbEnt].th=th;
1129 entries[nbEnt].tv=tv;
1130 entries[nbEnt].prev=entries[nbEnt].next=-1;
1131 entries[nbEnt].ipb=*ipb;
1132 if ( mpb ) {
1133 entries[nbEnt].hasMask=true;
1134 entries[nbEnt].mpb=*mpb;
1135 } else {
1136 entries[nbEnt].hasMask=false;
1137 }
1138 entries[nbEnt].next=keys[key];
1139 if ( entries[nbEnt].next >= 0 ) entries[entries[nbEnt].next].prev=nbEnt;
1140 keys[key]=nbEnt;
1142 nbEnt++;
1143 return true;
1144 }
1145 #endif