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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.226 by sf-exg, Thu May 31 05:53:46 2012 UTC vs.
Revision 1.254 by sf-exg, Sun Dec 30 20:28:31 2012 UTC

1/*----------------------------------------------------------------------* 1/*----------------------------------------------------------------------*
2 * File: background.C - former xpm.C 2 * File: background.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * 4 *
5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de> 6 * Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7 * Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net> 7 * Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
… …
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 BG_IMAGE_FROM_ROOT
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
68 if (bg_pixmap)
69 XFreePixmap (dpy, bg_pixmap);
70} 41}
71 42
72bool 43bool
73rxvt_term::bg_set_position (int x, int y) 44rxvt_term::bg_window_size_sensitive ()
74{ 45{
46# if BG_IMAGE_FROM_ROOT
47 if (root_img)
48 return true;
49# endif
75 50
76 if (target_x != x 51# if BG_IMAGE_FROM_FILE
77 || target_y != y) 52 if (fimage.img)
78 { 53 {
79 target_x = x; 54 if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
80 target_y = y; 55 || fimage.img->w > szHint.width
56 || fimage.img->h > szHint.height)
81 return true; 57 return true;
82 } 58 }
59# endif
60
83 return false; 61 return false;
84} 62}
85 63
86bool 64bool
87rxvt_term::bg_window_size_sensitive () 65rxvt_term::bg_window_position_sensitive ()
88{ 66{
89# ifdef ENABLE_TRANSPARENCY 67# if BG_IMAGE_FROM_ROOT
90 if (bg_flags & BG_IS_TRANSPARENT) 68 if (root_img)
91 return true; 69 return true;
92# endif 70# endif
93 71
94# ifdef BG_IMAGE_FROM_FILE 72# if BG_IMAGE_FROM_FILE
95 for (vector<rxvt_image>::iterator bg_image = image_vec.begin (); bg_image < image_vec.end (); bg_image++) 73 if (fimage.img)
96 { 74 {
97 if ((bg_image->flags & IM_IS_SIZE_SENSITIVE) 75 if (fimage.flags & IM_ROOT_ALIGN)
98 || bg_image->width () > szHint.width
99 || bg_image->height () > szHint.height)
100 return true; 76 return true;
101 } 77 }
102# endif 78# endif
103 79
104 return false; 80 return false;
105} 81}
106 82
107bool
108rxvt_term::bg_window_position_sensitive ()
109{
110# ifdef ENABLE_TRANSPARENCY
111 if (bg_flags & BG_IS_TRANSPARENT)
112 return true;
113# endif
114
115# ifdef BG_IMAGE_FROM_FILE 83# if BG_IMAGE_FROM_FILE
116 for (vector<rxvt_image>::iterator bg_image = image_vec.begin (); bg_image < image_vec.end (); bg_image++)
117 {
118 if (bg_image->flags & IM_ROOT_ALIGN)
119 return true;
120 }
121# endif
122
123 return false;
124}
125
126# ifdef BG_IMAGE_FROM_FILE
127static inline int 84static inline int
128make_align_position (int align, int window_size, int image_size) 85make_align_position (int align, int window_size, int image_size)
129{ 86{
130 if (align >= 0 && align <= 100) 87 if (align >= 0 && align <= 100)
131 return lerp (0, window_size - image_size, align); 88 return lerp (0, window_size - image_size, align);
132 else if (align > 100) 89 else if (align > 100)
133 return lerp (window_size - image_size, window_size, align - 100); 90 return lerp (window_size - image_size, window_size, align - 100);
134 else 91 else
135 return lerp (-image_size, 0, align + 100); 92 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} 93}
154 94
155static void 95static void
156parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags) 96parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
157{ 97{
… …
314} 254}
315 255
316void 256void
317rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y) 257rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
318{ 258{
319 int image_width = image.width (); 259 int image_width = image.img->w;
320 int image_height = image.height (); 260 int image_height = image.img->h;
321 int target_width = szHint.width; 261 int parent_width = szHint.width;
322 int target_height = szHint.height; 262 int parent_height = szHint.height;
323 int h_scale = min (image.h_scale, 32767 * 100 / target_width); 263 int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
324 int v_scale = min (image.v_scale, 32767 * 100 / target_height); 264 int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
325 265
326 w = h_scale * target_width / 100; 266 w = h_scale * parent_width / 100;
327 h = v_scale * target_height / 100; 267 h = v_scale * parent_height / 100;
328 268
329 if (image.flags & IM_KEEP_ASPECT) 269 if (image.flags & IM_KEEP_ASPECT)
330 { 270 {
331 float scale = (float)w / image_width; 271 float scale = (float)w / image_width;
332 min_it (scale, (float)h / image_height); 272 min_it (scale, (float)h / image_height);
… …
337 if (!w) w = image_width; 277 if (!w) w = image_width;
338 if (!h) h = image_height; 278 if (!h) h = image_height;
339 279
340 if (image.flags & IM_ROOT_ALIGN) 280 if (image.flags & IM_ROOT_ALIGN)
341 { 281 {
342 x = -target_x; 282 x = -parent_x;
343 y = -target_y; 283 y = -parent_y;
344 } 284 }
345 else 285 else
346 { 286 {
347 x = make_align_position (image.h_align, target_width, w); 287 x = make_align_position (image.h_align, parent_width, w);
348 y = make_align_position (image.v_align, target_height, h); 288 y = make_align_position (image.v_align, parent_height, h);
349 }
350}
351
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 { 289 }
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} 290}
478 291
479bool 292bool
480rxvt_term::render_image (rxvt_image &image) 293rxvt_term::render_image (rxvt_image &image)
481{ 294{
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; 295 int parent_width = szHint.width;
498 int target_height = szHint.height; 296 int parent_height = szHint.height;
499 int new_pmap_width = target_width;
500 int new_pmap_height = target_height;
501 297
502 int x = 0; 298 int x = 0;
503 int y = 0; 299 int y = 0;
504 int w = 0; 300 int w = 0;
505 int h = 0; 301 int h = 0;
506 302
507 get_image_geometry (image, w, h, x, y); 303 get_image_geometry (image, w, h, x, y);
508 304
509 if (!(image.flags & IM_ROOT_ALIGN) 305 if (!(image.flags & IM_ROOT_ALIGN)
510 && (x >= target_width 306 && (x >= parent_width
511 || y >= target_height 307 || y >= parent_height
512 || x + w <= 0 308 || x + w <= 0
513 || y + h <= 0)) 309 || y + h <= 0))
514 return false; 310 return false;
515 311
516 result = pixbuf; 312 rxvt_img *img = image.img->scale (w, h);
517 313
518 if (w != image_width 314 if (image.flags & IM_TILE)
519 || h != image_height) 315 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 316 else
541 { 317 img->repeat_mode (RepeatNone);
542 // optimise bg pixmap size when tiling, but only if there are no 318 img->sub_rect (-x, -y, parent_width, parent_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 }
551 319
552 if (bg_pixmap == None 320 if (bg_img)
553 || bg_pmap_width != new_pmap_width 321 img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
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 }
562 322
563 tmp_pixmap = bg_pixmap;
564 }
565
566 gcv.foreground = pix_colors[Color_bg];
567 gc = XCreateGC (dpy, tmp_pixmap, GCForeground, &gcv);
568
569 if (gc)
570 {
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
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 (image.need_blur ())
609 blur_pixmap (tmp_pixmap, new_pmap_width, new_pmap_height, need_blend, image.h_blurRadius, image.v_blurRadius);
610 if (image.need_tint ())
611 tint_pixmap (tmp_pixmap, new_pmap_width, new_pmap_height, need_blend, image.tint, image.tint_set, image.shade);
612
613#if XRENDER
614 if (need_blend)
615 {
616 XRenderPictFormat *argb_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
617 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); 323 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
324 img->convert_format (format, pix_colors [Color_bg])->replace (img);
618 325
619 Picture src = XRenderCreatePicture (dpy, tmp_pixmap, argb_format, 0, 0); 326 delete bg_img;
327 bg_img = img;
620 328
621 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
622
623 Picture mask = create_xrender_mask (dpy, vt, False, False);
624
625 XRenderColor mask_c;
626
627 mask_c.alpha = image.alpha;
628 mask_c.red =
629 mask_c.green =
630 mask_c.blue = 0;
631 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
632
633 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
634
635 XRenderFreePicture (dpy, src);
636 XRenderFreePicture (dpy, dst);
637 XRenderFreePicture (dpy, mask);
638 }
639#endif
640
641 XFreeGC (dpy, gc);
642
643 ret = true;
644 }
645
646 if (result != pixbuf)
647 g_object_unref (result);
648
649 if (need_blend)
650 XFreePixmap (dpy, tmp_pixmap);
651
652 return ret; 329 return true;
653} 330}
654# endif /* HAVE_PIXBUF */
655
656# ifndef NO_RESOURCES
657static int
658rxvt_define_image (XrmDatabase *database ecb_unused,
659 XrmBindingList bindings ecb_unused,
660 XrmQuarkList quarks,
661 XrmRepresentation *type ecb_unused,
662 XrmValue *value,
663 XPointer closure ecb_unused)
664{
665 int size;
666
667 for (size = 0; quarks[size] != NULLQUARK; size++)
668 ;
669
670 if (size >= 2)
671 {
672 int id = strtol (XrmQuarkToString (quarks[size-2]), 0, 0);
673 if (id >= 1)
674 GET_R->parse_image (id, XrmQuarkToString (quarks[size-1]), (char *)value->addr);
675 }
676 return False;
677}
678
679void
680rxvt_term::parse_image (int id, const char *type, const char *arg)
681{
682 if (image_vec.size () < id + 1)
683 image_vec.resize (id + 1);
684
685 rxvt_image *image = &image_vec[id];
686}
687# endif
688 331
689rxvt_image::rxvt_image () 332rxvt_image::rxvt_image ()
690{ 333{
691 alpha = 0xffff; 334 alpha = 0xffff;
692 flags = 0; 335 flags = 0;
693 h_scale = 336 h_scale =
694 v_scale = defaultScale; 337 v_scale = defaultScale;
695 h_align = 338 h_align =
696 v_align = defaultAlign; 339 v_align = defaultAlign;
697 340
698# ifdef HAVE_PIXBUF 341 img = 0;
699 pixbuf = 0;
700# endif
701} 342}
702 343
703bool 344void
704rxvt_image::set_file_geometry (const char *file) 345rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
705{ 346{
706 if (!file || !*file) 347 if (!file || !*file)
707 return false; 348 return;
708 349
709 const char *p = strchr (file, ';'); 350 const char *p = strchr (file, ';');
710 351
711 if (p) 352 if (p)
712 { 353 {
… …
715 memcpy (f, file, len); 356 memcpy (f, file, len);
716 f[len] = '\0'; 357 f[len] = '\0';
717 file = f; 358 file = f;
718 } 359 }
719 360
720 bool ret = set_file (file); 361 set_file (s, file);
721 alpha = 0x8000; 362 alpha = 0x8000;
722 if (ret)
723 set_geometry (p ? p + 1 : ""); 363 set_geometry (p ? p + 1 : "");
724 return ret;
725} 364}
726 365
727bool 366void
728rxvt_image::set_file (const char *file) 367rxvt_image::set_file (rxvt_screen *s, const char *file)
729{ 368{
730 bool ret = false; 369 rxvt_img *img2 = rxvt_img::new_from_file (s, file);
731 370 delete img;
732# ifdef HAVE_PIXBUF 371 img = img2;
733 GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
734 if (image)
735 {
736 if (pixbuf)
737 g_object_unref (pixbuf);
738 pixbuf = image;
739 ret = true;
740 }
741# endif
742
743 if (ret)
744 flags |= IM_IS_SET;
745
746 return ret;
747} 372}
748 373
749# endif /* BG_IMAGE_FROM_FILE */ 374# endif /* BG_IMAGE_FROM_FILE */
750 375
751bool 376bool
… …
809 } 434 }
810 435
811 return false; 436 return false;
812} 437}
813 438
814#if XRENDER 439# if BG_IMAGE_FROM_ROOT
815static void
816get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
817{
818 double sigma = radius / 2.0;
819 double scale = sqrt (2.0 * M_PI) * sigma;
820 double sum = 0.0;
821
822 for (int i = 0; i < width; i++)
823 {
824 double x = i - width / 2;
825 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
826 sum += kernel[i];
827 }
828
829 params[0] = XDoubleToFixed (width);
830 params[1] = XDoubleToFixed (1);
831
832 for (int i = 0; i < width; i++)
833 params[i+2] = XDoubleToFixed (kernel[i] / sum);
834}
835#endif
836
837bool
838rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height, bool argb, int h_blurRadius, int v_blurRadius)
839{
840 bool ret = false;
841#if XRENDER
842 if (!(bg_flags & BG_HAS_RENDER_CONV))
843 return false;
844
845 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
846 double *kernel = (double *)malloc (size * sizeof (double));
847 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
848
849 XRenderPictureAttributes pa;
850 XRenderPictFormat *format = argb ? XRenderFindStandardFormat (dpy, PictStandardARGB32)
851 : XRenderFindVisualFormat (dpy, visual);
852
853 pa.repeat = RepeatPad;
854 Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
855 Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
856 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
857 XFreePixmap (dpy, tmp);
858
859 if (kernel && params)
860 {
861 size = h_blurRadius * 2 + 1;
862 get_gaussian_kernel (h_blurRadius, size, kernel, params);
863
864 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
865 XRenderComposite (dpy,
866 PictOpSrc,
867 src,
868 None,
869 dst,
870 0, 0,
871 0, 0,
872 0, 0,
873 width, height);
874
875 ::swap (src, dst);
876
877 size = v_blurRadius * 2 + 1;
878 get_gaussian_kernel (v_blurRadius, size, kernel, params);
879 ::swap (params[0], params[1]);
880
881 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
882 XRenderComposite (dpy,
883 PictOpSrc,
884 src,
885 None,
886 dst,
887 0, 0,
888 0, 0,
889 0, 0,
890 width, height);
891
892 ret = true;
893 }
894
895 free (kernel);
896 free (params);
897 XRenderFreePicture (dpy, src);
898 XRenderFreePicture (dpy, dst);
899#endif
900 return ret;
901}
902
903bool
904rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height, bool argb, rxvt_color &tint, bool tint_set, int shade)
905{
906 bool ret = false;
907
908 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
909
910 if (tint_set)
911 tint.get (c);
912
913 if (shade == 100
914 && (c.r <= 0x00ff || c.r >= 0xff00)
915 && (c.g <= 0x00ff || c.g >= 0xff00)
916 && (c.b <= 0x00ff || c.b >= 0xff00))
917 {
918 XGCValues gcv;
919 GC gc;
920
921 /* In this case we can tint image server-side getting significant
922 * performance improvements, as we eliminate XImage transfer
923 */
924 gcv.foreground = Pixel (tint);
925 gcv.function = GXand;
926 gcv.fill_style = FillSolid;
927 gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
928 if (gc)
929 {
930 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
931 ret = true;
932 XFreeGC (dpy, gc);
933 }
934 }
935# if XRENDER
936 else if (bg_flags & BG_HAS_RENDER)
937 {
938 if (shade <= 100)
939 {
940 c.r = c.r * shade / 100;
941 c.g = c.g * shade / 100;
942 c.b = c.b * shade / 100;
943 }
944 else
945 {
946 c.r = c.r * (200 - shade) / 100;
947 c.g = c.g * (200 - shade) / 100;
948 c.b = c.b * (200 - shade) / 100;
949 }
950
951 XRenderPictFormat *format = argb ? XRenderFindStandardFormat (dpy, PictStandardARGB32)
952 : 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# ifdef ENABLE_TRANSPARENCY
999/* 440/*
1000 * Builds a pixmap of the same size as the terminal window that contains 441 * Builds a pixmap of the same size as the terminal window that contains
1001 * the tiled portion of the root pixmap that is supposed to be covered by 442 * the tiled portion of the root pixmap that is supposed to be covered by
1002 * our window. 443 * our window.
1003 */ 444 */
1004bool 445bool
1005rxvt_term::make_transparency_pixmap () 446rxvt_term::render_root_image ()
1006{ 447{
1007 bool ret = false;
1008
1009 /* root dimensions may change from call to call - but Display structure should 448 /* root dimensions may change from call to call - but Display structure should
1010 * be always up-to-date, so let's use it : 449 * be always up-to-date, so let's use it :
1011 */ 450 */
1012 int screen = display->screen; 451 int screen = display->screen;
1013 int root_depth = DefaultDepth (dpy, screen);
1014 int root_width = DisplayWidth (dpy, screen); 452 int root_width = DisplayWidth (dpy, screen);
1015 int root_height = DisplayHeight (dpy, screen); 453 int root_height = DisplayHeight (dpy, screen);
1016 unsigned int root_pmap_width, root_pmap_height;
1017 int window_width = szHint.width; 454 int parent_width = szHint.width;
1018 int window_height = szHint.height; 455 int parent_height = szHint.height;
1019 int sx, sy; 456 int sx, sy;
1020 XGCValues gcv;
1021 GC gc;
1022 457
1023 sx = target_x; 458 sx = parent_x;
1024 sy = target_y; 459 sy = parent_y;
1025 460
1026 /* check if we are outside of the visible part of the virtual screen : */ 461 /* check if we are outside of the visible part of the virtual screen : */
1027 if (sx + window_width <= 0 || sy + window_height <= 0 462 if (sx + parent_width <= 0 || sy + parent_height <= 0
1028 || sx >= root_width || sy >= root_height) 463 || sx >= root_width || sy >= root_height)
1029 return 0; 464 return 0;
1030 465
1031 // validate root pixmap and get its size 466 while (sx < 0) sx += root_img->w;
1032 if (root_pixmap != None) 467 while (sy < 0) sy += root_img->h;
1033 {
1034 Window wdummy;
1035 int idummy;
1036 unsigned int udummy;
1037 468
1038 allowedxerror = -1; 469 rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1039 470
1040 if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) 471 if (root_effects.need_blur ())
1041 root_pixmap = None; 472 img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1042 473
1043 allowedxerror = 0; 474 if (root_effects.need_tint ())
1044 } 475 tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1045 476
1046 Pixmap recoded_root_pmap = root_pixmap;
1047
1048 if (root_pixmap != None && root_depth != depth)
1049 {
1050#if XRENDER
1051 if (bg_flags & BG_HAS_RENDER)
1052 {
1053 recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1054
1055 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1056 Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1057
1058 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); 477 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1059 Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); 478 img->convert_format (format, pix_colors [Color_bg])->replace (img);
1060 479
1061 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); 480 delete bg_img;
481 bg_img = img;
1062 482
1063 XRenderFreePicture (dpy, src);
1064 XRenderFreePicture (dpy, dst);
1065 }
1066 else
1067#endif
1068 recoded_root_pmap = None;
1069 }
1070
1071 if (recoded_root_pmap == None)
1072 return 0;
1073
1074 if (bg_pixmap == None
1075 || bg_pmap_width != window_width
1076 || bg_pmap_height != window_height)
1077 {
1078 if (bg_pixmap)
1079 XFreePixmap (dpy, bg_pixmap);
1080 bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1081 bg_pmap_width = window_width;
1082 bg_pmap_height = window_height;
1083 }
1084
1085 /* straightforward pixmap copy */
1086 while (sx < 0) sx += root_pmap_width;
1087 while (sy < 0) sy += root_pmap_height;
1088
1089 gcv.tile = recoded_root_pmap;
1090 gcv.fill_style = FillTiled;
1091 gcv.ts_x_origin = -sx;
1092 gcv.ts_y_origin = -sy;
1093 gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1094
1095 if (gc)
1096 {
1097 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1098 ret = true;
1099 bool need_blur = root_effects.need_blur ();
1100 bool need_tint = root_effects.need_tint ();
1101
1102 if (!(bg_flags & BG_CLIENT_RENDER))
1103 {
1104 if (need_blur)
1105 {
1106 if (blur_pixmap (bg_pixmap, window_width, window_height, false,
1107 root_effects.h_blurRadius, root_effects.v_blurRadius))
1108 need_blur = false;
1109 }
1110 if (need_tint)
1111 {
1112 if (tint_pixmap (bg_pixmap, window_width, window_height, false,
1113 root_effects.tint, root_effects.tint_set, root_effects.shade))
1114 need_tint = false;
1115 }
1116 if (need_tint)
1117 {
1118 XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1119 if (ximage)
1120 {
1121 /* our own client-side tinting */
1122 tint_ximage (ximage, root_effects.tint, root_effects.tint_set, root_effects.shade);
1123
1124 XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1125 XDestroyImage (ximage);
1126 }
1127 }
1128 } /* server side rendering completed */
1129
1130 XFreeGC (dpy, gc);
1131 }
1132
1133 if (recoded_root_pmap != root_pixmap)
1134 XFreePixmap (dpy, recoded_root_pmap);
1135
1136 return ret; 483 return true;
1137} 484}
1138 485
1139void 486void
1140rxvt_term::bg_set_root_pixmap () 487rxvt_term::bg_set_root_pixmap ()
1141{ 488{
1142 Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]); 489 delete root_img;
1143 if (new_root_pixmap == None) 490 root_img = rxvt_img::new_from_root (this);
1144 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1145
1146 root_pixmap = new_root_pixmap;
1147} 491}
1148# endif /* ENABLE_TRANSPARENCY */ 492# endif /* BG_IMAGE_FROM_ROOT */
1149 493
1150bool 494void
1151rxvt_term::bg_render () 495rxvt_term::bg_render ()
1152{ 496{
1153 bg_invalidate (); 497 if (bg_flags & BG_INHIBIT_RENDER)
1154# ifdef ENABLE_TRANSPARENCY 498 return;
499
500 delete bg_img;
501 bg_img = 0;
502 bg_flags = 0;
503
504 if (!mapped)
505 return;
506
507# if BG_IMAGE_FROM_ROOT
508 if (root_img)
509 if (render_root_image ())
1155 if (bg_flags & BG_IS_TRANSPARENT) 510 bg_flags |= BG_IS_TRANSPARENT;
1156 {
1157 /* we need to re-generate transparency pixmap in that case ! */
1158 if (make_transparency_pixmap ())
1159 bg_flags |= BG_IS_VALID;
1160 }
1161# endif 511# endif
1162 512
1163# ifdef BG_IMAGE_FROM_FILE 513# if BG_IMAGE_FROM_FILE
1164 for (vector<rxvt_image>::iterator bg_image = image_vec.begin (); bg_image < image_vec.end (); bg_image++) 514 if (fimage.img)
1165 {
1166 if (render_image (*bg_image)) 515 render_image (fimage);
1167 bg_flags |= BG_IS_VALID;
1168 }
1169# endif 516# endif
1170
1171 if (!(bg_flags & BG_IS_VALID))
1172 {
1173 if (bg_pixmap != None)
1174 {
1175 XFreePixmap (dpy, bg_pixmap);
1176 bg_pixmap = None;
1177 }
1178 }
1179 517
1180 scr_recolour (false); 518 scr_recolour (false);
1181 bg_flags |= BG_NEEDS_REFRESH; 519 bg_flags |= BG_NEEDS_REFRESH;
1182 520
1183 bg_valid_since = ev::now (); 521 bg_valid_since = ev::now ();
1184
1185 return true;
1186} 522}
1187 523
1188void 524void
1189rxvt_term::bg_init () 525rxvt_term::bg_init ()
1190{ 526{
1191 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV); 527#if BG_IMAGE_FROM_ROOT
1192#if XRENDER 528 if (option (Opt_transparent))
1193 int major, minor;
1194 if (XRenderQueryVersion (dpy, &major, &minor))
1195 bg_flags |= BG_HAS_RENDER;
1196 XFilters *filters = XRenderQueryFilters (dpy, vt);
1197 if (filters)
1198 { 529 {
1199 for (int i = 0; i < filters->nfilter; i++) 530 if (rs [Rs_blurradius])
1200 if (!strcmp (filters->filter[i], FilterConvolution)) 531 root_effects.set_blur (rs [Rs_blurradius]);
1201 bg_flags |= BG_HAS_RENDER_CONV;
1202 532
1203 XFree (filters); 533 if (ISSET_PIXCOLOR (Color_tint))
534 root_effects.set_tint (pix_colors_focused [Color_tint]);
535
536 if (rs [Rs_shade])
537 root_effects.set_shade (rs [Rs_shade]);
538
539 bg_set_root_pixmap ();
540 XSelectInput (dpy, display->root, PropertyChangeMask);
541 rootwin_ev.start (display, display->root);
1204 } 542 }
1205#endif 543#endif
1206 544
1207#ifdef BG_IMAGE_FROM_FILE 545#if BG_IMAGE_FROM_FILE
1208 if (rs[Rs_backgroundPixmap]) 546 if (rs[Rs_backgroundPixmap])
1209 { 547 {
1210 rxvt_image *image = new_image ();
1211 if (!image->set_file_geometry (rs[Rs_backgroundPixmap])) 548 fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1212 image_vec.pop_back ();
1213 }
1214
1215# ifndef NO_RESOURCES
1216 find_resources ("image", "Image", XrmEnumAllLevels, rxvt_define_image);
1217 vector<rxvt_image>::iterator bg_image = image_vec.begin ();
1218 while (bg_image != image_vec.end ())
1219 {
1220 if (!(bg_image->flags & IM_IS_SET))
1221 bg_image = image_vec.erase (bg_image);
1222 else
1223 {
1224 if (bg_image->is_size_sensitive ())
1225 bg_image->flags |= IM_IS_SIZE_SENSITIVE;
1226
1227 bg_image++;
1228 }
1229 }
1230# endif
1231
1232 if (image_vec.size () > 0
1233 && !bg_window_position_sensitive ()) 549 if (!bg_window_position_sensitive ())
1234 update_background (); 550 update_background ();
551 }
1235#endif 552#endif
1236} 553}
1237 554
1238/* based on code from aterm-0.4.2 */
1239
1240static inline void
1241fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1242{
1243 for (int i = 0; i <= mask >> sh; i++)
1244 {
1245 uint32_t tmp;
1246 tmp = i * high;
1247 tmp += (mask >> sh) * low;
1248 lookup[i] = (tmp / 0xffff) << sh;
1249 }
1250}
1251
1252void 555void
1253rxvt_term::tint_ximage (XImage *ximage, rxvt_color &tint, bool tint_set, int shade) 556rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1254{ 557{
1255 unsigned int size_r, size_g, size_b;
1256 int sh_r, sh_g, sh_b;
1257 uint32_t mask_r, mask_g, mask_b;
1258 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1259 unsigned short low;
1260 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1261
1262 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1263
1264 /* for convenience */
1265 mask_r = visual->red_mask;
1266 mask_g = visual->green_mask;
1267 mask_b = visual->blue_mask;
1268
1269 /* boring lookup table pre-initialization */
1270 sh_r = ecb_ctz32 (mask_r);
1271 sh_g = ecb_ctz32 (mask_g);
1272 sh_b = ecb_ctz32 (mask_b);
1273
1274 size_r = mask_r >> sh_r;
1275 size_g = mask_g >> sh_g;
1276 size_b = mask_b >> sh_b;
1277
1278 if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1279 return;
1280
1281 lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1282 lookup_r = lookup;
1283 lookup_g = lookup + size_r;
1284 lookup_b = lookup + size_r + size_g;
1285
1286 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); 558 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1287 559
1288 if (tint_set) 560 if (tint_set)
1289 tint.get (c); 561 tint.get (c);
1290 562
1291 /* prepare limits for color transformation (each channel is handled separately) */
1292 if (shade > 100) 563 if (shade > 100)
1293 { 564 {
1294 c.r = c.r * (200 - shade) / 100; 565 c.r = c.r * (200 - shade) / 100;
1295 c.g = c.g * (200 - shade) / 100; 566 c.g = c.g * (200 - shade) / 100;
1296 c.b = c.b * (200 - shade) / 100; 567 c.b = c.b * (200 - shade) / 100;
1297
1298 low = 0xffff * (shade - 100) / 100;
1299 } 568 }
1300 else 569 else
1301 { 570 {
1302 c.r = c.r * shade / 100; 571 c.r = c.r * shade / 100;
1303 c.g = c.g * shade / 100; 572 c.g = c.g * shade / 100;
1304 c.b = c.b * shade / 100; 573 c.b = c.b * shade / 100;
1305
1306 low = 0;
1307 }
1308
1309 /* fill our lookup tables */
1310 fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1311 fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1312 fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1313
1314 /* apply table to input image (replacing colors by newly calculated ones) */
1315 if (ximage->bits_per_pixel == 32
1316 && ximage->byte_order == host_byte_order)
1317 { 574 }
1318 char *line = ximage->data;
1319 575
1320 for (int y = 0; y < ximage->height; y++) 576 img->contrast (c.r, c.g, c.b, c.a);
1321 { 577
1322 uint32_t *p = (uint32_t *)line; 578 if (shade > 100)
1323 for (int x = 0; x < ximage->width; x++)
1324 {
1325 *p = lookup_r[(*p & mask_r) >> sh_r] |
1326 lookup_g[(*p & mask_g) >> sh_g] |
1327 lookup_b[(*p & mask_b) >> sh_b];
1328 p++;
1329 }
1330 line += ximage->bytes_per_line;
1331 }
1332 } 579 {
1333 else 580 c.a = 0xffff;
581 c.r =
582 c.g =
583 c.b = 0xffff * (shade - 100) / 100;
584 img->brightness (c.r, c.g, c.b, c.a);
1334 { 585 }
1335 for (int y = 0; y < ximage->height; y++)
1336 for (int x = 0; x < ximage->width; x++)
1337 {
1338 unsigned long pixel = XGetPixel (ximage, x, y);
1339 pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1340 lookup_g[(pixel & mask_g) >> sh_g] |
1341 lookup_b[(pixel & mask_b) >> sh_b];
1342 XPutPixel (ximage, x, y, pixel);
1343 }
1344 }
1345
1346 free (lookup);
1347} 586}
1348 587
1349#endif /* HAVE_BG_PIXMAP */ 588#endif /* HAVE_BG_PIXMAP */

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