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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.225 by sf-exg, Wed May 30 21:20:05 2012 UTC vs.
Revision 1.238 by sf-exg, Sun Jun 10 15:48:08 2012 UTC

… …
20 * You should have received a copy of the GNU General Public License 20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software 21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *---------------------------------------------------------------------*/ 23 *---------------------------------------------------------------------*/
24 24
25#include <math.h>
26#include "../config.h" /* NECESSARY */ 25#include "../config.h" /* NECESSARY */
27#include "rxvt.h" /* NECESSARY */ 26#include "rxvt.h" /* NECESSARY */
28 27
29#if XRENDER
30# include <X11/extensions/Xrender.h>
31#endif
32
33#ifndef FilterConvolution
34#define FilterConvolution "convolution"
35#endif
36
37#ifndef RepeatPad
38#define RepeatPad True
39#endif
40
41#ifdef HAVE_BG_PIXMAP 28#ifdef HAVE_BG_PIXMAP
42# if XRENDER
43static Picture
44create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
45{
46 Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
47
48 XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
49 XRenderPictureAttributes pa;
50 pa.repeat = True;
51 pa.component_alpha = component_alpha;
52 Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
53
54 XFreePixmap (dpy, pixmap);
55
56 return mask;
57}
58# endif
59 29
60void 30void
61rxvt_term::bg_destroy () 31rxvt_term::bg_destroy ()
62{ 32{
33# if ENABLE_TRANSPARENCY
34 delete root_img;
35 root_img = 0;
36# endif
37
63# ifdef BG_IMAGE_FROM_FILE 38# if BG_IMAGE_FROM_FILE
64 for (vector<rxvt_image>::iterator bg_image = image_vec.begin (); bg_image < image_vec.end (); bg_image++)
65 bg_image->destroy (); 39 fimage.destroy ();
66# endif 40# endif
67 41
68 if (bg_pixmap) 42 delete bg_img;
69 XFreePixmap (dpy, bg_pixmap); 43 bg_img = 0;
70} 44}
71 45
72bool 46bool
73rxvt_term::bg_set_position (int x, int y) 47rxvt_term::bg_set_position (int x, int y)
74{ 48{
… …
84} 58}
85 59
86bool 60bool
87rxvt_term::bg_window_size_sensitive () 61rxvt_term::bg_window_size_sensitive ()
88{ 62{
89# ifdef ENABLE_TRANSPARENCY 63# if ENABLE_TRANSPARENCY
90 if (bg_flags & BG_IS_TRANSPARENT) 64 if (bg_flags & BG_IS_TRANSPARENT)
91 return true; 65 return true;
92# endif 66# endif
93 67
94# ifdef BG_IMAGE_FROM_FILE 68# if BG_IMAGE_FROM_FILE
95 for (vector<rxvt_image>::iterator bg_image = image_vec.begin (); bg_image < image_vec.end (); bg_image++) 69 if (fimage.img)
96 { 70 {
97 if ((bg_image->flags & IM_IS_SIZE_SENSITIVE) 71 if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
98 || bg_image->width () > szHint.width 72 || fimage.img->w > szHint.width
99 || bg_image->height () > szHint.height) 73 || fimage.img->h > szHint.height)
100 return true; 74 return true;
101 } 75 }
102# endif 76# endif
103 77
104 return false; 78 return false;
105} 79}
106 80
107bool 81bool
108rxvt_term::bg_window_position_sensitive () 82rxvt_term::bg_window_position_sensitive ()
109{ 83{
110# ifdef ENABLE_TRANSPARENCY 84# if ENABLE_TRANSPARENCY
111 if (bg_flags & BG_IS_TRANSPARENT) 85 if (bg_flags & BG_IS_TRANSPARENT)
112 return true; 86 return true;
113# endif 87# endif
114 88
115# ifdef BG_IMAGE_FROM_FILE 89# if BG_IMAGE_FROM_FILE
116 for (vector<rxvt_image>::iterator bg_image = image_vec.begin (); bg_image < image_vec.end (); bg_image++) 90 if (fimage.img)
117 { 91 {
118 if (bg_image->flags & IM_ROOT_ALIGN) 92 if (fimage.flags & IM_ROOT_ALIGN)
119 return true; 93 return true;
120 } 94 }
121# endif 95# endif
122 96
123 return false; 97 return false;
124} 98}
125 99
126# ifdef BG_IMAGE_FROM_FILE 100# if BG_IMAGE_FROM_FILE
127static inline int 101static inline int
128make_align_position (int align, int window_size, int image_size) 102make_align_position (int align, int window_size, int image_size)
129{ 103{
130 if (align >= 0 && align <= 100) 104 if (align >= 0 && align <= 100)
131 return lerp (0, window_size - image_size, align); 105 return lerp (0, window_size - image_size, align);
132 else if (align > 100) 106 else if (align > 100)
133 return lerp (window_size - image_size, window_size, align - 100); 107 return lerp (window_size - image_size, window_size, align - 100);
134 else 108 else
135 return lerp (-image_size, 0, align + 100); 109 return lerp (-image_size, 0, align + 100);
136}
137
138static inline int
139make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
140{
141 int src_pos = 0;
142 dst_pos = pos;
143 dst_size = size;
144 if (pos < 0)
145 {
146 src_pos = -pos;
147 dst_pos = 0;
148 dst_size += pos;
149 }
150
151 min_it (dst_size, target_size - dst_pos);
152 return src_pos;
153} 110}
154 111
155static void 112static void
156parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags) 113parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
157{ 114{
… …
314} 271}
315 272
316void 273void
317rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y) 274rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
318{ 275{
319 int image_width = image.width (); 276 int image_width = image.img->w;
320 int image_height = image.height (); 277 int image_height = image.img->h;
321 int target_width = szHint.width; 278 int target_width = szHint.width;
322 int target_height = szHint.height; 279 int target_height = szHint.height;
323 int h_scale = min (image.h_scale, 32767 * 100 / target_width); 280 int h_scale = min (image.h_scale, 32767 * 100 / target_width);
324 int v_scale = min (image.v_scale, 32767 * 100 / target_height); 281 int v_scale = min (image.v_scale, 32767 * 100 / target_height);
325 282
… …
347 x = make_align_position (image.h_align, target_width, w); 304 x = make_align_position (image.h_align, target_width, w);
348 y = make_align_position (image.v_align, target_height, h); 305 y = make_align_position (image.v_align, target_height, h);
349 } 306 }
350} 307}
351 308
352# ifdef HAVE_PIXBUF
353bool
354rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
355 int src_x, int src_y, int dst_x, int dst_y,
356 unsigned int width, unsigned int height, bool argb)
357{
358 XImage *ximage;
359 char *line;
360 int width_r, width_g, width_b, width_a;
361 int sh_r, sh_g, sh_b, sh_a;
362 uint32_t red_mask, green_mask, blue_mask, alpha_mask;
363 int rowstride;
364 int channels;
365 unsigned char *row;
366
367 if (visual->c_class != TrueColor)
368 return false;
369
370 if (argb)
371 {
372 red_mask = 0xff << 16;
373 green_mask = 0xff << 8;
374 blue_mask = 0xff;
375 alpha_mask = 0xff << 24;
376 }
377 else
378 {
379 red_mask = visual->red_mask;
380 green_mask = visual->green_mask;
381 blue_mask = visual->blue_mask;
382#if XRENDER
383 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
384 if (format)
385 alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
386 else
387#endif
388 alpha_mask = 0;
389 }
390
391 width_r = ecb_popcount32 (red_mask);
392 width_g = ecb_popcount32 (green_mask);
393 width_b = ecb_popcount32 (blue_mask);
394 width_a = ecb_popcount32 (alpha_mask);
395
396 if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
397 return false;
398
399 sh_r = ecb_ctz32 (red_mask);
400 sh_g = ecb_ctz32 (green_mask);
401 sh_b = ecb_ctz32 (blue_mask);
402 sh_a = ecb_ctz32 (alpha_mask);
403
404 if (width > 32767 || height > 32767)
405 return false;
406
407 ximage = XCreateImage (dpy, visual, argb ? 32 : depth, ZPixmap, 0, 0,
408 width, height, 32, 0);
409 if (!ximage)
410 return false;
411
412 if (height > INT_MAX / ximage->bytes_per_line
413 || !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
414 {
415 XDestroyImage (ximage);
416 return false;
417 }
418
419 ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
420
421 rowstride = gdk_pixbuf_get_rowstride (pixbuf);
422 channels = gdk_pixbuf_get_n_channels (pixbuf);
423 row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
424 line = ximage->data;
425
426 rgba c (0, 0, 0);
427
428 if (channels == 4 && alpha_mask == 0)
429 {
430 pix_colors[Color_bg].get (c);
431 c.r >>= 8;
432 c.g >>= 8;
433 c.b >>= 8;
434 }
435
436 for (int y = 0; y < height; y++)
437 {
438 for (int x = 0; x < width; x++)
439 {
440 unsigned char *pixel = row + x * channels;
441 uint32_t value;
442 unsigned char r, g, b, a;
443
444 if (channels == 4)
445 {
446 a = pixel[3];
447 r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
448 g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
449 b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
450 }
451 else
452 {
453 a = 0xff;
454 r = pixel[0];
455 g = pixel[1];
456 b = pixel[2];
457 }
458
459 value = ((r >> (8 - width_r)) << sh_r)
460 | ((g >> (8 - width_g)) << sh_g)
461 | ((b >> (8 - width_b)) << sh_b)
462 | ((a >> (8 - width_a)) << sh_a);
463
464 if (ximage->bits_per_pixel == 32)
465 ((uint32_t *)line)[x] = value;
466 else
467 XPutPixel (ximage, x, y, value);
468 }
469
470 row += rowstride;
471 line += ximage->bytes_per_line;
472 }
473
474 XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
475 XDestroyImage (ximage);
476 return true;
477}
478
479bool 309bool
480rxvt_term::render_image (rxvt_image &image) 310rxvt_term::render_image (rxvt_image &image)
481{ 311{
482 GdkPixbuf *pixbuf = image.pixbuf;
483 if (!pixbuf)
484 return false;
485
486 bool need_blend = bg_flags & BG_IS_VALID;
487
488 if (need_blend
489 && !(bg_flags & BG_HAS_RENDER))
490 return false;
491
492 GdkPixbuf *result;
493
494 int image_width = gdk_pixbuf_get_width (pixbuf);
495 int image_height = gdk_pixbuf_get_height (pixbuf);
496
497 int target_width = szHint.width; 312 int target_width = szHint.width;
498 int target_height = szHint.height; 313 int target_height = szHint.height;
499 int new_pmap_width = target_width;
500 int new_pmap_height = target_height;
501 314
502 int x = 0; 315 int x = 0;
503 int y = 0; 316 int y = 0;
504 int w = 0; 317 int w = 0;
505 int h = 0; 318 int h = 0;
… …
511 || y >= target_height 324 || y >= target_height
512 || x + w <= 0 325 || x + w <= 0
513 || y + h <= 0)) 326 || y + h <= 0))
514 return false; 327 return false;
515 328
516 result = pixbuf; 329 rxvt_img *img = image.img->scale (w, h);
517 330
518 if (w != image_width 331 if (image.flags & IM_TILE)
519 || h != image_height) 332 img->repeat_mode (RepeatNormal);
520 {
521 result = gdk_pixbuf_scale_simple (pixbuf,
522 w, h,
523 GDK_INTERP_BILINEAR);
524 }
525
526 if (!result)
527 return false;
528
529 bool ret = false;
530
531 XGCValues gcv;
532 GC gc;
533 Pixmap tmp_pixmap;
534
535 image_width = gdk_pixbuf_get_width (result);
536 image_height = gdk_pixbuf_get_height (result);
537
538 if (need_blend)
539 tmp_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, 32);
540 else 333 else
541 { 334 img->repeat_mode (RepeatNone);
542 // optimise bg pixmap size when tiling, but only if there are no 335 img->sub_rect (-x, -y, target_width, target_height)->replace (img);
543 // other pixbufs to render. Otherwise, the bg pixmap size must
544 // be equal to the window size.
545 if ((image.flags & IM_TILE)
546 && image_vec.size () == 1)
547 {
548 new_pmap_width = min (image_width, target_width);
549 new_pmap_height = min (image_height, target_height);
550 }
551 336
552 if (bg_pixmap == None 337 if (bg_flags & BG_IS_VALID)
553 || bg_pmap_width != new_pmap_width
554 || bg_pmap_height != new_pmap_height)
555 {
556 if (bg_pixmap)
557 XFreePixmap (dpy, bg_pixmap);
558 bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
559 bg_pmap_width = new_pmap_width;
560 bg_pmap_height = new_pmap_height;
561 }
562
563 tmp_pixmap = bg_pixmap;
564 } 338 {
565 339 double factor = image.alpha * 1. / 0xffff;
566 gcv.foreground = pix_colors[Color_bg]; 340 bg_img->blend (img, factor)->replace (img);
567 gc = XCreateGC (dpy, tmp_pixmap, GCForeground, &gcv);
568
569 if (gc)
570 { 341 }
571 if (image.flags & IM_TILE)
572 {
573 Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, need_blend ? 32 : depth);
574 pixbuf_to_pixmap (result, tile, gc,
575 0, 0,
576 0, 0,
577 image_width, image_height, need_blend);
578 342
579 gcv.tile = tile;
580 gcv.fill_style = FillTiled;
581 gcv.ts_x_origin = x;
582 gcv.ts_y_origin = y;
583 XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
584
585 XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
586 XFreePixmap (dpy, tile);
587 }
588 else
589 {
590 int src_x, src_y, dst_x, dst_y;
591 int dst_width, dst_height;
592
593 src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
594 src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
595
596 if (dst_x > 0 || dst_y > 0
597 || dst_x + dst_width < new_pmap_width
598 || dst_y + dst_height < new_pmap_height)
599 XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
600
601 if (dst_x < new_pmap_width && dst_y < new_pmap_height)
602 pixbuf_to_pixmap (result, tmp_pixmap, gc,
603 src_x, src_y,
604 dst_x, dst_y,
605 dst_width, dst_height, need_blend);
606 }
607
608#if XRENDER
609 if (need_blend)
610 {
611 XRenderPictFormat *argb_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
612 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); 343 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
344 img->convert_format (format, pix_colors [Color_bg])->replace (img);
613 345
614 Picture src = XRenderCreatePicture (dpy, tmp_pixmap, argb_format, 0, 0); 346 delete bg_img;
347 bg_img = img;
615 348
616 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
617
618 Picture mask = create_xrender_mask (dpy, vt, False, False);
619
620 XRenderColor mask_c;
621
622 mask_c.alpha = image.alpha;
623 mask_c.red =
624 mask_c.green =
625 mask_c.blue = 0;
626 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
627
628 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
629
630 XRenderFreePicture (dpy, src);
631 XRenderFreePicture (dpy, dst);
632 XRenderFreePicture (dpy, mask);
633 }
634#endif
635
636 XFreeGC (dpy, gc);
637
638 ret = true;
639 }
640
641 if (result != pixbuf)
642 g_object_unref (result);
643
644 if (need_blend)
645 XFreePixmap (dpy, tmp_pixmap);
646
647 return ret; 349 return true;
648} 350}
649# endif /* HAVE_PIXBUF */
650
651# ifndef NO_RESOURCES
652static int
653rxvt_define_image (XrmDatabase *database ecb_unused,
654 XrmBindingList bindings ecb_unused,
655 XrmQuarkList quarks,
656 XrmRepresentation *type ecb_unused,
657 XrmValue *value,
658 XPointer closure ecb_unused)
659{
660 int size;
661
662 for (size = 0; quarks[size] != NULLQUARK; size++)
663 ;
664
665 if (size >= 2)
666 {
667 int id = strtol (XrmQuarkToString (quarks[size-2]), 0, 0);
668 if (id >= 1)
669 GET_R->parse_image (id, XrmQuarkToString (quarks[size-1]), (char *)value->addr);
670 }
671 return False;
672}
673
674void
675rxvt_term::parse_image (int id, const char *type, const char *arg)
676{
677 if (image_vec.size () < id + 1)
678 image_vec.resize (id + 1);
679
680 rxvt_image *image = &image_vec[id];
681}
682# endif
683 351
684rxvt_image::rxvt_image () 352rxvt_image::rxvt_image ()
685{ 353{
686 alpha = 0xffff; 354 alpha = 0xffff;
687 flags = 0; 355 flags = 0;
688 h_scale = 356 h_scale =
689 v_scale = defaultScale; 357 v_scale = defaultScale;
690 h_align = 358 h_align =
691 v_align = defaultAlign; 359 v_align = defaultAlign;
692 360
693# ifdef HAVE_PIXBUF 361 img = 0;
694 pixbuf = 0;
695# endif
696} 362}
697 363
698bool 364bool
699rxvt_image::set_file_geometry (const char *file) 365rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
700{ 366{
701 if (!file || !*file) 367 if (!file || !*file)
702 return false; 368 return false;
703 369
704 const char *p = strchr (file, ';'); 370 const char *p = strchr (file, ';');
… …
710 memcpy (f, file, len); 376 memcpy (f, file, len);
711 f[len] = '\0'; 377 f[len] = '\0';
712 file = f; 378 file = f;
713 } 379 }
714 380
715 bool ret = set_file (file); 381 bool ret = set_file (s, file);
716 alpha = 0x8000; 382 alpha = 0x8000;
717 if (ret) 383 if (ret)
718 set_geometry (p ? p + 1 : ""); 384 set_geometry (p ? p + 1 : "");
719 return ret; 385 return ret;
720} 386}
721 387
722bool 388bool
723rxvt_image::set_file (const char *file) 389rxvt_image::set_file (rxvt_screen *s, const char *file)
724{ 390{
725 bool ret = false; 391 delete img;
726 392 img = rxvt_img::new_from_file (s, file);
727# ifdef HAVE_PIXBUF 393 return img != 0;
728 GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
729 if (image)
730 {
731 if (pixbuf)
732 g_object_unref (pixbuf);
733 pixbuf = image;
734 ret = true;
735 }
736# endif
737
738 if (ret)
739 flags |= IM_IS_SET;
740
741 return ret;
742} 394}
743 395
744# endif /* BG_IMAGE_FROM_FILE */ 396# endif /* BG_IMAGE_FROM_FILE */
745 397
746# ifdef ENABLE_TRANSPARENCY
747bool 398bool
748rxvt_term::bg_set_blur (const char *geom) 399image_effects::set_blur (const char *geom)
749{ 400{
750 bool changed = false; 401 bool changed = false;
751 unsigned int hr, vr; 402 unsigned int hr, vr;
752 int junk; 403 int junk;
753 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); 404 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
… …
774 425
775 return changed; 426 return changed;
776} 427}
777 428
778bool 429bool
779rxvt_term::bg_set_tint (rxvt_color &new_tint) 430image_effects::set_tint (const rxvt_color &new_tint)
780{ 431{
781 if (!(bg_flags & BG_TINT_SET) || tint != new_tint) 432 if (!tint_set || tint != new_tint)
782 { 433 {
783 tint = new_tint; 434 tint = new_tint;
784 bg_flags |= BG_TINT_SET; 435 tint_set = true;
785
786 rgba c;
787 tint.get (c);
788 if ((c.r <= 0x00ff || c.r >= 0xff00)
789 && (c.g <= 0x00ff || c.g >= 0xff00)
790 && (c.b <= 0x00ff || c.b >= 0xff00))
791 bg_flags |= BG_TINT_BITAND;
792 else
793 bg_flags &= ~BG_TINT_BITAND;
794 436
795 return true; 437 return true;
796 } 438 }
797 439
798 return false; 440 return false;
799} 441}
800 442
801bool 443bool
802rxvt_term::bg_set_shade (const char *shade_str) 444image_effects::set_shade (const char *shade_str)
803{ 445{
804 int new_shade = atoi (shade_str); 446 int new_shade = atoi (shade_str);
805 447
806 clamp_it (new_shade, -100, 200); 448 clamp_it (new_shade, -100, 200);
807 if (new_shade < 0) 449 if (new_shade < 0)
… …
814 } 456 }
815 457
816 return false; 458 return false;
817} 459}
818 460
819#if XRENDER 461# if ENABLE_TRANSPARENCY
820static void
821get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
822{
823 double sigma = radius / 2.0;
824 double scale = sqrt (2.0 * M_PI) * sigma;
825 double sum = 0.0;
826
827 for (int i = 0; i < width; i++)
828 {
829 double x = i - width / 2;
830 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
831 sum += kernel[i];
832 }
833
834 params[0] = XDoubleToFixed (width);
835 params[1] = XDoubleToFixed (1);
836
837 for (int i = 0; i < width; i++)
838 params[i+2] = XDoubleToFixed (kernel[i] / sum);
839}
840#endif
841
842bool
843rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
844{
845 bool ret = false;
846#if XRENDER
847 if (!(bg_flags & BG_HAS_RENDER_CONV))
848 return false;
849
850 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
851 double *kernel = (double *)malloc (size * sizeof (double));
852 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
853
854 XRenderPictureAttributes pa;
855 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
856
857 pa.repeat = RepeatPad;
858 Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
859 Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
860 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
861 XFreePixmap (dpy, tmp);
862
863 if (kernel && params)
864 {
865 size = h_blurRadius * 2 + 1;
866 get_gaussian_kernel (h_blurRadius, size, kernel, params);
867
868 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
869 XRenderComposite (dpy,
870 PictOpSrc,
871 src,
872 None,
873 dst,
874 0, 0,
875 0, 0,
876 0, 0,
877 width, height);
878
879 ::swap (src, dst);
880
881 size = v_blurRadius * 2 + 1;
882 get_gaussian_kernel (v_blurRadius, size, kernel, params);
883 ::swap (params[0], params[1]);
884
885 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
886 XRenderComposite (dpy,
887 PictOpSrc,
888 src,
889 None,
890 dst,
891 0, 0,
892 0, 0,
893 0, 0,
894 width, height);
895
896 ret = true;
897 }
898
899 free (kernel);
900 free (params);
901 XRenderFreePicture (dpy, src);
902 XRenderFreePicture (dpy, dst);
903#endif
904 return ret;
905}
906
907bool
908rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
909{
910 bool ret = false;
911
912 if (shade == 100 && (bg_flags & BG_TINT_BITAND))
913 {
914 XGCValues gcv;
915 GC gc;
916
917 /* In this case we can tint image server-side getting significant
918 * performance improvements, as we eliminate XImage transfer
919 */
920 gcv.foreground = Pixel (tint);
921 gcv.function = GXand;
922 gcv.fill_style = FillSolid;
923 gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
924 if (gc)
925 {
926 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
927 ret = true;
928 XFreeGC (dpy, gc);
929 }
930 }
931# if XRENDER
932 else if (bg_flags & BG_HAS_RENDER)
933 {
934 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
935
936 if (bg_flags & BG_TINT_SET)
937 tint.get (c);
938
939 if (shade <= 100)
940 {
941 c.r = c.r * shade / 100;
942 c.g = c.g * shade / 100;
943 c.b = c.b * shade / 100;
944 }
945 else
946 {
947 c.r = c.r * (200 - shade) / 100;
948 c.g = c.g * (200 - shade) / 100;
949 c.b = c.b * (200 - shade) / 100;
950 }
951
952 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
953
954 Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
955
956 Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
957
958 Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
959
960 XRenderColor mask_c;
961
962 mask_c.alpha = 0xffff;
963 mask_c.red =
964 mask_c.green =
965 mask_c.blue = 0;
966 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
967
968 mask_c.alpha = 0;
969 mask_c.red = 0xffff - c.r;
970 mask_c.green = 0xffff - c.g;
971 mask_c.blue = 0xffff - c.b;
972 XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
973
974 XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
975
976 if (shade > 100)
977 {
978 mask_c.alpha = 0;
979 mask_c.red =
980 mask_c.green =
981 mask_c.blue = 0xffff * (shade - 100) / 100;
982 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
983
984 XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
985 }
986
987 ret = true;
988
989 XRenderFreePicture (dpy, mask_pic);
990 XRenderFreePicture (dpy, overlay_pic);
991 XRenderFreePicture (dpy, back_pic);
992 }
993# endif
994
995 return ret;
996}
997
998/* 462/*
999 * Builds a pixmap of the same size as the terminal window that contains 463 * Builds a pixmap of the same size as the terminal window that contains
1000 * the tiled portion of the root pixmap that is supposed to be covered by 464 * the tiled portion of the root pixmap that is supposed to be covered by
1001 * our window. 465 * our window.
1002 */ 466 */
1003bool 467bool
1004rxvt_term::make_transparency_pixmap () 468rxvt_term::render_root_image ()
1005{ 469{
1006 bool ret = false;
1007
1008 /* root dimensions may change from call to call - but Display structure should 470 /* root dimensions may change from call to call - but Display structure should
1009 * be always up-to-date, so let's use it : 471 * be always up-to-date, so let's use it :
1010 */ 472 */
1011 int screen = display->screen; 473 int screen = display->screen;
1012 int root_depth = DefaultDepth (dpy, screen);
1013 int root_width = DisplayWidth (dpy, screen); 474 int root_width = DisplayWidth (dpy, screen);
1014 int root_height = DisplayHeight (dpy, screen); 475 int root_height = DisplayHeight (dpy, screen);
1015 unsigned int root_pmap_width, root_pmap_height;
1016 int window_width = szHint.width; 476 int window_width = szHint.width;
1017 int window_height = szHint.height; 477 int window_height = szHint.height;
1018 int sx, sy; 478 int sx, sy;
1019 XGCValues gcv;
1020 GC gc;
1021 479
1022 sx = target_x; 480 sx = target_x;
1023 sy = target_y; 481 sy = target_y;
482
483 if (!root_img)
484 return false;
1024 485
1025 /* check if we are outside of the visible part of the virtual screen : */ 486 /* check if we are outside of the visible part of the virtual screen : */
1026 if (sx + window_width <= 0 || sy + window_height <= 0 487 if (sx + window_width <= 0 || sy + window_height <= 0
1027 || sx >= root_width || sy >= root_height) 488 || sx >= root_width || sy >= root_height)
1028 return 0; 489 return 0;
1029 490
1030 // validate root pixmap and get its size 491 while (sx < 0) sx += root_img->w;
1031 if (root_pixmap != None) 492 while (sy < 0) sy += root_img->h;
1032 {
1033 Window wdummy;
1034 int idummy;
1035 unsigned int udummy;
1036 493
1037 allowedxerror = -1; 494 rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
1038 495
1039 if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) 496 if (root_effects.need_blur ())
1040 root_pixmap = None; 497 img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1041 498
1042 allowedxerror = 0; 499 if (root_effects.need_tint ())
1043 } 500 tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1044 501
1045 Pixmap recoded_root_pmap = root_pixmap;
1046
1047 if (root_pixmap != None && root_depth != depth)
1048 {
1049#if XRENDER
1050 if (bg_flags & BG_HAS_RENDER)
1051 {
1052 recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1053
1054 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1055 Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1056
1057 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); 502 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1058 Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); 503 img->convert_format (format, pix_colors [Color_bg])->replace (img);
1059 504
1060 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); 505 delete bg_img;
506 bg_img = img;
1061 507
1062 XRenderFreePicture (dpy, src);
1063 XRenderFreePicture (dpy, dst);
1064 }
1065 else
1066#endif
1067 recoded_root_pmap = None;
1068 }
1069
1070 if (recoded_root_pmap == None)
1071 return 0;
1072
1073 if (bg_pixmap == None
1074 || bg_pmap_width != window_width
1075 || bg_pmap_height != window_height)
1076 {
1077 if (bg_pixmap)
1078 XFreePixmap (dpy, bg_pixmap);
1079 bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1080 bg_pmap_width = window_width;
1081 bg_pmap_height = window_height;
1082 }
1083
1084 /* straightforward pixmap copy */
1085 while (sx < 0) sx += root_pmap_width;
1086 while (sy < 0) sy += root_pmap_height;
1087
1088 gcv.tile = recoded_root_pmap;
1089 gcv.fill_style = FillTiled;
1090 gcv.ts_x_origin = -sx;
1091 gcv.ts_y_origin = -sy;
1092 gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1093
1094 if (gc)
1095 {
1096 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1097 ret = true;
1098 bool need_blur = h_blurRadius && v_blurRadius;
1099 bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
1100
1101 if (!(bg_flags & BG_CLIENT_RENDER))
1102 {
1103 if (need_blur)
1104 {
1105 if (blur_pixmap (bg_pixmap, window_width, window_height))
1106 need_blur = false;
1107 }
1108 if (need_tint)
1109 {
1110 if (tint_pixmap (bg_pixmap, window_width, window_height))
1111 need_tint = false;
1112 }
1113 if (need_tint)
1114 {
1115 XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1116 if (ximage)
1117 {
1118 /* our own client-side tinting */
1119 tint_ximage (ximage);
1120
1121 XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1122 XDestroyImage (ximage);
1123 }
1124 }
1125 } /* server side rendering completed */
1126
1127 XFreeGC (dpy, gc);
1128 }
1129
1130 if (recoded_root_pmap != root_pixmap)
1131 XFreePixmap (dpy, recoded_root_pmap);
1132
1133 return ret; 508 return true;
1134} 509}
1135 510
1136void 511void
1137rxvt_term::bg_set_root_pixmap () 512rxvt_term::bg_set_root_pixmap ()
1138{ 513{
1139 Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]); 514 delete root_img;
1140 if (new_root_pixmap == None) 515 root_img = rxvt_img::new_from_root (this);
1141 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1142
1143 root_pixmap = new_root_pixmap;
1144} 516}
1145# endif /* ENABLE_TRANSPARENCY */ 517# endif /* ENABLE_TRANSPARENCY */
1146 518
1147bool 519void
1148rxvt_term::bg_render () 520rxvt_term::bg_render ()
1149{ 521{
522 if (bg_flags & BG_INHIBIT_RENDER)
523 return;
524
1150 bg_invalidate (); 525 bg_invalidate ();
1151# ifdef ENABLE_TRANSPARENCY 526# if ENABLE_TRANSPARENCY
1152 if (bg_flags & BG_IS_TRANSPARENT) 527 if (bg_flags & BG_IS_TRANSPARENT)
1153 { 528 {
1154 /* we need to re-generate transparency pixmap in that case ! */ 529 /* we need to re-generate transparency pixmap in that case ! */
1155 if (make_transparency_pixmap ()) 530 if (render_root_image ())
1156 bg_flags |= BG_IS_VALID; 531 bg_flags |= BG_IS_VALID;
1157 } 532 }
1158# endif 533# endif
1159 534
1160# ifdef BG_IMAGE_FROM_FILE 535# if BG_IMAGE_FROM_FILE
1161 for (vector<rxvt_image>::iterator bg_image = image_vec.begin (); bg_image < image_vec.end (); bg_image++) 536 if (fimage.img)
1162 { 537 {
1163 if (render_image (*bg_image)) 538 if (render_image (fimage))
1164 bg_flags |= BG_IS_VALID; 539 bg_flags |= BG_IS_VALID;
1165 } 540 }
1166# endif 541# endif
1167 542
1168 if (!(bg_flags & BG_IS_VALID)) 543 if (!(bg_flags & BG_IS_VALID))
1169 { 544 {
1170 if (bg_pixmap != None) 545 delete bg_img;
1171 { 546 bg_img = 0;
1172 XFreePixmap (dpy, bg_pixmap);
1173 bg_pixmap = None;
1174 }
1175 } 547 }
1176 548
1177 scr_recolour (false); 549 scr_recolour (false);
1178 bg_flags |= BG_NEEDS_REFRESH; 550 bg_flags |= BG_NEEDS_REFRESH;
1179 551
1180 bg_valid_since = ev::now (); 552 bg_valid_since = ev::now ();
1181
1182 return true;
1183} 553}
1184 554
1185void 555void
1186rxvt_term::bg_init () 556rxvt_term::bg_init ()
1187{ 557{
1188#ifdef ENABLE_TRANSPARENCY 558#if BG_IMAGE_FROM_FILE
1189 shade = 100; 559 if (rs[Rs_backgroundPixmap])
560 {
561 if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
562 && !bg_window_position_sensitive ())
563 update_background ();
564 }
1190#endif 565#endif
1191
1192 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
1193#if XRENDER
1194 int major, minor;
1195 if (XRenderQueryVersion (dpy, &major, &minor))
1196 bg_flags |= BG_HAS_RENDER;
1197 XFilters *filters = XRenderQueryFilters (dpy, vt);
1198 if (filters)
1199 {
1200 for (int i = 0; i < filters->nfilter; i++)
1201 if (!strcmp (filters->filter[i], FilterConvolution))
1202 bg_flags |= BG_HAS_RENDER_CONV;
1203
1204 XFree (filters);
1205 }
1206#endif
1207
1208#ifdef BG_IMAGE_FROM_FILE
1209 if (rs[Rs_backgroundPixmap])
1210 {
1211 rxvt_image *image = new_image ();
1212 if (!image->set_file_geometry (rs[Rs_backgroundPixmap]))
1213 image_vec.pop_back ();
1214 }
1215
1216# ifndef NO_RESOURCES
1217 find_resources ("image", "Image", XrmEnumAllLevels, rxvt_define_image);
1218 vector<rxvt_image>::iterator bg_image = image_vec.begin ();
1219 while (bg_image != image_vec.end ())
1220 {
1221 if (!(bg_image->flags & IM_IS_SET))
1222 bg_image = image_vec.erase (bg_image);
1223 else
1224 {
1225 if (bg_image->is_size_sensitive ())
1226 bg_image->flags |= IM_IS_SIZE_SENSITIVE;
1227
1228 bg_image++;
1229 }
1230 }
1231# endif
1232
1233 if (image_vec.size () > 0
1234 && !bg_window_position_sensitive ())
1235 update_background ();
1236#endif
1237}
1238
1239#endif /* HAVE_BG_PIXMAP */
1240
1241#ifdef ENABLE_TRANSPARENCY
1242/* based on code from aterm-0.4.2 */
1243
1244static inline void
1245fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1246{
1247 for (int i = 0; i <= mask >> sh; i++)
1248 {
1249 uint32_t tmp;
1250 tmp = i * high;
1251 tmp += (mask >> sh) * low;
1252 lookup[i] = (tmp / 0xffff) << sh;
1253 }
1254} 566}
1255 567
1256void 568void
1257rxvt_term::tint_ximage (XImage *ximage) 569rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1258{ 570{
1259 unsigned int size_r, size_g, size_b;
1260 int sh_r, sh_g, sh_b;
1261 uint32_t mask_r, mask_g, mask_b;
1262 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1263 unsigned short low;
1264 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1265
1266 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1267
1268 /* for convenience */
1269 mask_r = visual->red_mask;
1270 mask_g = visual->green_mask;
1271 mask_b = visual->blue_mask;
1272
1273 /* boring lookup table pre-initialization */
1274 sh_r = ecb_ctz32 (mask_r);
1275 sh_g = ecb_ctz32 (mask_g);
1276 sh_b = ecb_ctz32 (mask_b);
1277
1278 size_r = mask_r >> sh_r;
1279 size_g = mask_g >> sh_g;
1280 size_b = mask_b >> sh_b;
1281
1282 if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1283 return;
1284
1285 lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1286 lookup_r = lookup;
1287 lookup_g = lookup + size_r;
1288 lookup_b = lookup + size_r + size_g;
1289
1290 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); 571 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1291 572
1292 if (bg_flags & BG_TINT_SET) 573 if (tint_set)
1293 tint.get (c); 574 tint.get (c);
1294 575
1295 /* prepare limits for color transformation (each channel is handled separately) */
1296 if (shade > 100) 576 if (shade > 100)
1297 { 577 {
1298 c.r = c.r * (200 - shade) / 100; 578 c.r = c.r * (200 - shade) / 100;
1299 c.g = c.g * (200 - shade) / 100; 579 c.g = c.g * (200 - shade) / 100;
1300 c.b = c.b * (200 - shade) / 100; 580 c.b = c.b * (200 - shade) / 100;
1301
1302 low = 0xffff * (shade - 100) / 100;
1303 } 581 }
1304 else 582 else
1305 { 583 {
1306 c.r = c.r * shade / 100; 584 c.r = c.r * shade / 100;
1307 c.g = c.g * shade / 100; 585 c.g = c.g * shade / 100;
1308 c.b = c.b * shade / 100; 586 c.b = c.b * shade / 100;
1309
1310 low = 0;
1311 }
1312
1313 /* fill our lookup tables */
1314 fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1315 fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1316 fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1317
1318 /* apply table to input image (replacing colors by newly calculated ones) */
1319 if (ximage->bits_per_pixel == 32
1320 && ximage->byte_order == host_byte_order)
1321 { 587 }
1322 char *line = ximage->data;
1323 588
1324 for (int y = 0; y < ximage->height; y++) 589 img->contrast (c.r, c.g, c.b, c.a);
1325 { 590
1326 uint32_t *p = (uint32_t *)line; 591 if (shade > 100)
1327 for (int x = 0; x < ximage->width; x++)
1328 {
1329 *p = lookup_r[(*p & mask_r) >> sh_r] |
1330 lookup_g[(*p & mask_g) >> sh_g] |
1331 lookup_b[(*p & mask_b) >> sh_b];
1332 p++;
1333 }
1334 line += ximage->bytes_per_line;
1335 }
1336 } 592 {
1337 else 593 c.a = 0xffff;
594 c.r =
595 c.g =
596 c.b = 0xffff * (shade - 100) / 100;
597 img->brightness (c.r, c.g, c.b, c.a);
1338 { 598 }
1339 for (int y = 0; y < ximage->height; y++)
1340 for (int x = 0; x < ximage->width; x++)
1341 {
1342 unsigned long pixel = XGetPixel (ximage, x, y);
1343 pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1344 lookup_g[(pixel & mask_g) >> sh_g] |
1345 lookup_b[(pixel & mask_b) >> sh_b];
1346 XPutPixel (ximage, x, y, pixel);
1347 }
1348 }
1349
1350 free (lookup);
1351} 599}
1352#endif /* ENABLE_TRANSPARENCY */ 600
601#endif /* HAVE_BG_PIXMAP */

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