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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.219 by sf-exg, Thu May 24 16:17:33 2012 UTC vs.
Revision 1.248 by sf-exg, Sun Dec 30 11:34:43 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{
63 if (bg_pixmap) 33# if BG_IMAGE_FROM_ROOT
64 XFreePixmap (dpy, bg_pixmap); 34 delete root_img;
65} 35 root_img = 0;
36# endif
66 37
67bool 38# if BG_IMAGE_FROM_FILE
68rxvt_term::bg_set_position (int x, int y) 39 fimage.destroy ();
69{ 40# endif
41}
70 42
71 if (target_x != x 43bool
72 || target_y != y) 44rxvt_term::bg_window_size_sensitive ()
45{
46# if BG_IMAGE_FROM_ROOT
47 if (option (Opt_transparent))
48 return true;
49# endif
50
51# if BG_IMAGE_FROM_FILE
52 if (fimage.img)
73 { 53 {
74 target_x = x; 54 if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
75 target_y = y; 55 || fimage.img->w > szHint.width
56 || fimage.img->h > szHint.height)
76 return true; 57 return true;
77 } 58 }
59# endif
60
78 return false; 61 return false;
79} 62}
80 63
81bool 64bool
82rxvt_term::bg_window_size_sensitive () 65rxvt_term::bg_window_position_sensitive ()
83{ 66{
84# ifdef ENABLE_TRANSPARENCY 67# if BG_IMAGE_FROM_ROOT
85 if (bg_flags & BG_IS_TRANSPARENT) 68 if (option (Opt_transparent))
86 return true; 69 return true;
87# endif 70# endif
88 71
89# ifdef BG_IMAGE_FROM_FILE 72# if BG_IMAGE_FROM_FILE
90 if (bg_image.flags & IM_IS_SET) 73 if (fimage.img)
91 { 74 {
92 if ((bg_image.flags & IM_IS_SIZE_SENSITIVE) 75 if (fimage.flags & IM_ROOT_ALIGN)
93 || bg_image.width () > szHint.width
94 || bg_image.height () > szHint.height)
95 return true; 76 return true;
96 } 77 }
97# endif 78# endif
98 79
99 return false; 80 return false;
100} 81}
101 82
102bool
103rxvt_term::bg_window_position_sensitive ()
104{
105# ifdef ENABLE_TRANSPARENCY
106 if (bg_flags & BG_IS_TRANSPARENT)
107 return true;
108# endif
109
110# ifdef BG_IMAGE_FROM_FILE 83# if BG_IMAGE_FROM_FILE
111 if (bg_image.flags & IM_IS_SET)
112 {
113 if (bg_image.flags & IM_ROOT_ALIGN)
114 return true;
115 }
116# endif
117
118 return false;
119}
120
121# ifdef BG_IMAGE_FROM_FILE
122static inline int 84static inline int
123make_align_position (int align, int window_size, int image_size) 85make_align_position (int align, int window_size, int image_size)
124{ 86{
125 if (align >= 0 && align <= 100) 87 if (align >= 0 && align <= 100)
126 return lerp (0, window_size - image_size, align); 88 return lerp (0, window_size - image_size, align);
127 else if (align > 100) 89 else if (align > 100)
128 return lerp (window_size - image_size, window_size, align - 100); 90 return lerp (window_size - image_size, window_size, align - 100);
129 else 91 else
130 return lerp (-image_size, 0, align + 100); 92 return lerp (-image_size, 0, align + 100);
131}
132
133static inline int
134make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
135{
136 int src_pos = 0;
137 dst_pos = pos;
138 dst_size = size;
139 if (pos < 0)
140 {
141 src_pos = -pos;
142 dst_pos = 0;
143 dst_size += pos;
144 }
145
146 min_it (dst_size, target_size - dst_pos);
147 return src_pos;
148} 93}
149 94
150static void 95static void
151parse_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)
152{ 97{
… …
298 h_align = x; 243 h_align = x;
299 v_align = y; 244 v_align = y;
300 changed = true; 245 changed = true;
301 } 246 }
302 247
303 if (!(flags & IM_TILE) 248 if (is_size_sensitive ())
304 || h_scale || v_scale
305 || (!(flags & IM_ROOT_ALIGN) && (h_align || v_align)))
306 flags |= IM_IS_SIZE_SENSITIVE; 249 flags |= IM_IS_SIZE_SENSITIVE;
307 else 250 else
308 flags &= ~IM_IS_SIZE_SENSITIVE; 251 flags &= ~IM_IS_SIZE_SENSITIVE;
309 252
310 return changed; 253 return changed;
311} 254}
312 255
313void 256void
314rxvt_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)
315{ 258{
316 int image_width = image.width (); 259 int image_width = image.img->w;
317 int image_height = image.height (); 260 int image_height = image.img->h;
318 int target_width = szHint.width; 261 int parent_width = szHint.width;
319 int target_height = szHint.height; 262 int parent_height = szHint.height;
320 int h_scale = min (image.h_scale, 32767 * 100 / target_width); 263 int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
321 int v_scale = min (image.v_scale, 32767 * 100 / target_height); 264 int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
322 265
323 w = h_scale * target_width / 100; 266 w = h_scale * parent_width / 100;
324 h = v_scale * target_height / 100; 267 h = v_scale * parent_height / 100;
325 268
326 if (image.flags & IM_KEEP_ASPECT) 269 if (image.flags & IM_KEEP_ASPECT)
327 { 270 {
328 float scale = (float)w / image_width; 271 float scale = (float)w / image_width;
329 min_it (scale, (float)h / image_height); 272 min_it (scale, (float)h / image_height);
… …
334 if (!w) w = image_width; 277 if (!w) w = image_width;
335 if (!h) h = image_height; 278 if (!h) h = image_height;
336 279
337 if (image.flags & IM_ROOT_ALIGN) 280 if (image.flags & IM_ROOT_ALIGN)
338 { 281 {
339 x = -target_x; 282 x = -parent_x;
340 y = -target_y; 283 y = -parent_y;
341 } 284 }
342 else 285 else
343 { 286 {
344 x = make_align_position (image.h_align, target_width, w); 287 x = make_align_position (image.h_align, parent_width, w);
345 y = make_align_position (image.v_align, target_height, h); 288 y = make_align_position (image.v_align, parent_height, h);
346 }
347}
348
349# ifdef HAVE_PIXBUF
350bool
351rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
352 int src_x, int src_y, int dst_x, int dst_y,
353 unsigned int width, unsigned int height, bool argb)
354{
355 XImage *ximage;
356 char *line;
357 int width_r, width_g, width_b, width_a;
358 int sh_r, sh_g, sh_b, sh_a;
359 uint32_t red_mask, green_mask, blue_mask, alpha_mask;
360 int rowstride;
361 int channels;
362 unsigned char *row;
363
364 if (visual->c_class != TrueColor)
365 return false;
366
367 if (argb)
368 { 289 }
369 red_mask = 0xff << 16;
370 green_mask = 0xff << 8;
371 blue_mask = 0xff;
372 alpha_mask = 0xff << 24;
373 }
374 else
375 {
376 red_mask = visual->red_mask;
377 green_mask = visual->green_mask;
378 blue_mask = visual->blue_mask;
379#if XRENDER
380 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
381 if (format)
382 alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
383 else
384#endif
385 alpha_mask = 0;
386 }
387
388 width_r = ecb_popcount32 (red_mask);
389 width_g = ecb_popcount32 (green_mask);
390 width_b = ecb_popcount32 (blue_mask);
391 width_a = ecb_popcount32 (alpha_mask);
392
393 if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
394 return false;
395
396 sh_r = ecb_ctz32 (red_mask);
397 sh_g = ecb_ctz32 (green_mask);
398 sh_b = ecb_ctz32 (blue_mask);
399 sh_a = ecb_ctz32 (alpha_mask);
400
401 if (width > 32767 || height > 32767)
402 return false;
403
404 ximage = XCreateImage (dpy, visual, argb ? 32 : depth, ZPixmap, 0, 0,
405 width, height, 32, 0);
406 if (!ximage)
407 return false;
408
409 if (height > INT_MAX / ximage->bytes_per_line
410 || !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
411 {
412 XDestroyImage (ximage);
413 return false;
414 }
415
416 ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
417
418 rowstride = gdk_pixbuf_get_rowstride (pixbuf);
419 channels = gdk_pixbuf_get_n_channels (pixbuf);
420 row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
421 line = ximage->data;
422
423 rgba c (0, 0, 0);
424
425 if (channels == 4 && alpha_mask == 0)
426 {
427 pix_colors[Color_bg].get (c);
428 c.r >>= 8;
429 c.g >>= 8;
430 c.b >>= 8;
431 }
432
433 for (int y = 0; y < height; y++)
434 {
435 for (int x = 0; x < width; x++)
436 {
437 unsigned char *pixel = row + x * channels;
438 uint32_t value;
439 unsigned char r, g, b, a;
440
441 if (channels == 4)
442 {
443 a = pixel[3];
444 r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
445 g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
446 b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
447 }
448 else
449 {
450 a = 0xff;
451 r = pixel[0];
452 g = pixel[1];
453 b = pixel[2];
454 }
455
456 value = ((r >> (8 - width_r)) << sh_r)
457 | ((g >> (8 - width_g)) << sh_g)
458 | ((b >> (8 - width_b)) << sh_b)
459 | ((a >> (8 - width_a)) << sh_a);
460
461 if (ximage->bits_per_pixel == 32)
462 ((uint32_t *)line)[x] = value;
463 else
464 XPutPixel (ximage, x, y, value);
465 }
466
467 row += rowstride;
468 line += ximage->bytes_per_line;
469 }
470
471 XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
472 XDestroyImage (ximage);
473 return true;
474} 290}
475 291
476bool 292bool
477rxvt_term::render_image (rxvt_image &image) 293rxvt_term::render_image (rxvt_image &image)
478{ 294{
479 GdkPixbuf *pixbuf = image.pixbuf;
480 if (!pixbuf)
481 return false;
482
483 bool need_blend = bg_flags & BG_IS_VALID;
484
485 if (need_blend
486 && !(bg_flags & BG_HAS_RENDER))
487 return false;
488
489 GdkPixbuf *result;
490
491 int image_width = gdk_pixbuf_get_width (pixbuf);
492 int image_height = gdk_pixbuf_get_height (pixbuf);
493
494 int target_width = szHint.width; 295 int parent_width = szHint.width;
495 int target_height = szHint.height; 296 int parent_height = szHint.height;
496 int new_pmap_width = target_width;
497 int new_pmap_height = target_height;
498 297
499 int x = 0; 298 int x = 0;
500 int y = 0; 299 int y = 0;
501 int w = 0; 300 int w = 0;
502 int h = 0; 301 int h = 0;
503 302
504 get_image_geometry (image, w, h, x, y); 303 get_image_geometry (image, w, h, x, y);
505 304
506 if (!(image.flags & IM_ROOT_ALIGN) 305 if (!(image.flags & IM_ROOT_ALIGN)
507 && (x >= target_width 306 && (x >= parent_width
508 || y >= target_height 307 || y >= parent_height
509 || x + w <= 0 308 || x + w <= 0
510 || y + h <= 0)) 309 || y + h <= 0))
511 return false; 310 return false;
512 311
513 result = pixbuf; 312 rxvt_img *img = image.img->scale (w, h);
514 313
515 if (w != image_width 314 if (image.flags & IM_TILE)
516 || h != image_height) 315 img->repeat_mode (RepeatNormal);
517 {
518 result = gdk_pixbuf_scale_simple (pixbuf,
519 w, h,
520 GDK_INTERP_BILINEAR);
521 }
522
523 if (!result)
524 return false;
525
526 bool ret = false;
527
528 XGCValues gcv;
529 GC gc;
530 Pixmap tmp_pixmap;
531
532 image_width = gdk_pixbuf_get_width (result);
533 image_height = gdk_pixbuf_get_height (result);
534
535 if (need_blend)
536 tmp_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, 32);
537 else 316 else
538 { 317 img->repeat_mode (RepeatNone);
539 if (image.flags & IM_TILE) 318 img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
540 {
541 new_pmap_width = min (image_width, target_width);
542 new_pmap_height = min (image_height, target_height);
543 }
544 319
545 if (bg_pixmap == None 320 if (bg_flags & BG_IS_VALID)
546 || bg_pmap_width != new_pmap_width 321 img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
547 || bg_pmap_height != new_pmap_height)
548 {
549 if (bg_pixmap)
550 XFreePixmap (dpy, bg_pixmap);
551 bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
552 bg_pmap_width = new_pmap_width;
553 bg_pmap_height = new_pmap_height;
554 }
555 322
556 tmp_pixmap = bg_pixmap;
557 }
558
559 gcv.foreground = pix_colors[Color_bg];
560 gc = XCreateGC (dpy, tmp_pixmap, GCForeground, &gcv);
561
562 if (gc)
563 {
564 if (image.flags & IM_TILE)
565 {
566 Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, need_blend ? 32 : depth);
567 pixbuf_to_pixmap (result, tile, gc,
568 0, 0,
569 0, 0,
570 image_width, image_height, need_blend);
571
572 gcv.tile = tile;
573 gcv.fill_style = FillTiled;
574 gcv.ts_x_origin = x;
575 gcv.ts_y_origin = y;
576 XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
577
578 XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
579 XFreePixmap (dpy, tile);
580 }
581 else
582 {
583 int src_x, src_y, dst_x, dst_y;
584 int dst_width, dst_height;
585
586 src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
587 src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
588
589 if (dst_x > 0 || dst_y > 0
590 || dst_x + dst_width < new_pmap_width
591 || dst_y + dst_height < new_pmap_height)
592 XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
593
594 if (dst_x < new_pmap_width && dst_y < new_pmap_height)
595 pixbuf_to_pixmap (result, tmp_pixmap, gc,
596 src_x, src_y,
597 dst_x, dst_y,
598 dst_width, dst_height, need_blend);
599 }
600
601#if XRENDER
602 if (need_blend)
603 {
604 XRenderPictFormat *argb_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
605 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); 323 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
324 img->convert_format (format, pix_colors [Color_bg])->replace (img);
606 325
607 Picture src = XRenderCreatePicture (dpy, tmp_pixmap, argb_format, 0, 0); 326 delete bg_img;
327 bg_img = img;
608 328
609 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
610
611 Picture mask = create_xrender_mask (dpy, vt, False, False);
612
613 XRenderColor mask_c;
614
615 mask_c.alpha = 0x8000;
616 mask_c.red =
617 mask_c.green =
618 mask_c.blue = 0;
619 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
620
621 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
622
623 XRenderFreePicture (dpy, src);
624 XRenderFreePicture (dpy, dst);
625 XRenderFreePicture (dpy, mask);
626 }
627#endif
628
629 XFreeGC (dpy, gc);
630
631 ret = true;
632 }
633
634 if (result != pixbuf)
635 g_object_unref (result);
636
637 if (need_blend)
638 XFreePixmap (dpy, tmp_pixmap);
639
640 return ret; 329 return true;
641} 330}
642# endif /* HAVE_PIXBUF */
643 331
644bool 332rxvt_image::rxvt_image ()
333{
334 alpha = 0xffff;
335 flags = 0;
336 h_scale =
337 v_scale = defaultScale;
338 h_align =
339 v_align = defaultAlign;
340
341 img = 0;
342}
343
344void
645rxvt_image::set_file (const char *file) 345rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
646{ 346{
647 if (!file || !*file) 347 if (!file || !*file)
648 return false; 348 return;
649 349
650 bool ret = false;
651 const char *p = strchr (file, ';'); 350 const char *p = strchr (file, ';');
652 351
653 if (p) 352 if (p)
654 { 353 {
655 size_t len = p - file; 354 size_t len = p - file;
… …
657 memcpy (f, file, len); 356 memcpy (f, file, len);
658 f[len] = '\0'; 357 f[len] = '\0';
659 file = f; 358 file = f;
660 } 359 }
661 360
662# ifdef HAVE_PIXBUF 361 set_file (s, file);
663 GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL); 362 alpha = 0x8000;
664 if (image)
665 {
666 if (pixbuf)
667 g_object_unref (pixbuf);
668 pixbuf = image;
669 ret = true;
670 }
671# endif
672
673 if (ret)
674 {
675 flags = IM_IS_SET | IM_IS_SIZE_SENSITIVE;
676 h_scale = v_scale = defaultScale;
677 h_align = v_align = defaultAlign;
678
679 if (p)
680 set_geometry (p + 1); 363 set_geometry (p ? p + 1 : "");
681 } 364}
682 365
683 return ret; 366void
367rxvt_image::set_file (rxvt_screen *s, const char *file)
368{
369 rxvt_img *img2 = rxvt_img::new_from_file (s, file);
370 delete img;
371 img = img2;
684} 372}
685 373
686# endif /* BG_IMAGE_FROM_FILE */ 374# endif /* BG_IMAGE_FROM_FILE */
687 375
688# ifdef ENABLE_TRANSPARENCY
689bool 376bool
690rxvt_term::bg_set_blur (const char *geom) 377image_effects::set_blur (const char *geom)
691{ 378{
692 bool changed = false; 379 bool changed = false;
693 unsigned int hr, vr; 380 unsigned int hr, vr;
694 int junk; 381 int junk;
695 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); 382 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
… …
716 403
717 return changed; 404 return changed;
718} 405}
719 406
720bool 407bool
721rxvt_term::bg_set_tint (rxvt_color &new_tint) 408image_effects::set_tint (const rxvt_color &new_tint)
722{ 409{
723 if (!(bg_flags & BG_TINT_SET) || tint != new_tint) 410 if (!tint_set || tint != new_tint)
724 { 411 {
725 tint = new_tint; 412 tint = new_tint;
726 bg_flags |= BG_TINT_SET; 413 tint_set = true;
727
728 rgba c;
729 tint.get (c);
730 if ((c.r <= 0x00ff || c.r >= 0xff00)
731 && (c.g <= 0x00ff || c.g >= 0xff00)
732 && (c.b <= 0x00ff || c.b >= 0xff00))
733 bg_flags |= BG_TINT_BITAND;
734 else
735 bg_flags &= ~BG_TINT_BITAND;
736 414
737 return true; 415 return true;
738 } 416 }
739 417
740 return false; 418 return false;
741} 419}
742 420
743bool 421bool
744rxvt_term::bg_set_shade (const char *shade_str) 422image_effects::set_shade (const char *shade_str)
745{ 423{
746 int new_shade = atoi (shade_str); 424 int new_shade = atoi (shade_str);
747 425
748 clamp_it (new_shade, -100, 200); 426 clamp_it (new_shade, -100, 200);
749 if (new_shade < 0) 427 if (new_shade < 0)
… …
756 } 434 }
757 435
758 return false; 436 return false;
759} 437}
760 438
761#if XRENDER 439# if BG_IMAGE_FROM_ROOT
762static void
763get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
764{
765 double sigma = radius / 2.0;
766 double scale = sqrt (2.0 * M_PI) * sigma;
767 double sum = 0.0;
768
769 for (int i = 0; i < width; i++)
770 {
771 double x = i - width / 2;
772 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
773 sum += kernel[i];
774 }
775
776 params[0] = XDoubleToFixed (width);
777 params[1] = XDoubleToFixed (1);
778
779 for (int i = 0; i < width; i++)
780 params[i+2] = XDoubleToFixed (kernel[i] / sum);
781}
782#endif
783
784bool
785rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
786{
787 bool ret = false;
788#if XRENDER
789 if (!(bg_flags & BG_HAS_RENDER_CONV))
790 return false;
791
792 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
793 double *kernel = (double *)malloc (size * sizeof (double));
794 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
795
796 XRenderPictureAttributes pa;
797 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
798
799 pa.repeat = RepeatPad;
800 Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
801 Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
802 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
803 XFreePixmap (dpy, tmp);
804
805 if (kernel && params)
806 {
807 size = h_blurRadius * 2 + 1;
808 get_gaussian_kernel (h_blurRadius, size, kernel, params);
809
810 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
811 XRenderComposite (dpy,
812 PictOpSrc,
813 src,
814 None,
815 dst,
816 0, 0,
817 0, 0,
818 0, 0,
819 width, height);
820
821 ::swap (src, dst);
822
823 size = v_blurRadius * 2 + 1;
824 get_gaussian_kernel (v_blurRadius, size, kernel, params);
825 ::swap (params[0], params[1]);
826
827 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
828 XRenderComposite (dpy,
829 PictOpSrc,
830 src,
831 None,
832 dst,
833 0, 0,
834 0, 0,
835 0, 0,
836 width, height);
837
838 ret = true;
839 }
840
841 free (kernel);
842 free (params);
843 XRenderFreePicture (dpy, src);
844 XRenderFreePicture (dpy, dst);
845#endif
846 return ret;
847}
848
849bool
850rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
851{
852 bool ret = false;
853
854 if (shade == 100 && (bg_flags & BG_TINT_BITAND))
855 {
856 XGCValues gcv;
857 GC gc;
858
859 /* In this case we can tint image server-side getting significant
860 * performance improvements, as we eliminate XImage transfer
861 */
862 gcv.foreground = Pixel (tint);
863 gcv.function = GXand;
864 gcv.fill_style = FillSolid;
865 gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
866 if (gc)
867 {
868 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
869 ret = true;
870 XFreeGC (dpy, gc);
871 }
872 }
873# if XRENDER
874 else if (bg_flags & BG_HAS_RENDER)
875 {
876 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
877
878 if (bg_flags & BG_TINT_SET)
879 tint.get (c);
880
881 if (shade <= 100)
882 {
883 c.r = c.r * shade / 100;
884 c.g = c.g * shade / 100;
885 c.b = c.b * shade / 100;
886 }
887 else
888 {
889 c.r = c.r * (200 - shade) / 100;
890 c.g = c.g * (200 - shade) / 100;
891 c.b = c.b * (200 - shade) / 100;
892 }
893
894 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
895
896 Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
897
898 Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
899
900 Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
901
902 XRenderColor mask_c;
903
904 mask_c.alpha = 0xffff;
905 mask_c.red =
906 mask_c.green =
907 mask_c.blue = 0;
908 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
909
910 mask_c.alpha = 0;
911 mask_c.red = 0xffff - c.r;
912 mask_c.green = 0xffff - c.g;
913 mask_c.blue = 0xffff - c.b;
914 XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
915
916 XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
917
918 if (shade > 100)
919 {
920 mask_c.alpha = 0;
921 mask_c.red =
922 mask_c.green =
923 mask_c.blue = 0xffff * (shade - 100) / 100;
924 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
925
926 XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
927 }
928
929 ret = true;
930
931 XRenderFreePicture (dpy, mask_pic);
932 XRenderFreePicture (dpy, overlay_pic);
933 XRenderFreePicture (dpy, back_pic);
934 }
935# endif
936
937 return ret;
938}
939
940/* 440/*
941 * 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
942 * 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
943 * our window. 443 * our window.
944 */ 444 */
945bool 445bool
946rxvt_term::make_transparency_pixmap () 446rxvt_term::render_root_image ()
947{ 447{
948 bool ret = false;
949
950 /* 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
951 * be always up-to-date, so let's use it : 449 * be always up-to-date, so let's use it :
952 */ 450 */
953 int screen = display->screen; 451 int screen = display->screen;
954 int root_depth = DefaultDepth (dpy, screen);
955 int root_width = DisplayWidth (dpy, screen); 452 int root_width = DisplayWidth (dpy, screen);
956 int root_height = DisplayHeight (dpy, screen); 453 int root_height = DisplayHeight (dpy, screen);
957 unsigned int root_pmap_width, root_pmap_height;
958 int window_width = szHint.width; 454 int parent_width = szHint.width;
959 int window_height = szHint.height; 455 int parent_height = szHint.height;
960 int sx, sy; 456 int sx, sy;
961 XGCValues gcv;
962 GC gc;
963 457
964 sx = target_x; 458 sx = parent_x;
965 sy = target_y; 459 sy = parent_y;
460
461 if (!root_img)
462 return false;
966 463
967 /* check if we are outside of the visible part of the virtual screen : */ 464 /* check if we are outside of the visible part of the virtual screen : */
968 if (sx + window_width <= 0 || sy + window_height <= 0 465 if (sx + parent_width <= 0 || sy + parent_height <= 0
969 || sx >= root_width || sy >= root_height) 466 || sx >= root_width || sy >= root_height)
970 return 0; 467 return 0;
971 468
972 // validate root pixmap and get its size 469 while (sx < 0) sx += root_img->w;
973 if (root_pixmap != None) 470 while (sy < 0) sy += root_img->h;
974 {
975 Window wdummy;
976 int idummy;
977 unsigned int udummy;
978 471
979 allowedxerror = -1; 472 rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
980 473
981 if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) 474 if (root_effects.need_blur ())
982 root_pixmap = None; 475 img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
983 476
984 allowedxerror = 0; 477 if (root_effects.need_tint ())
985 } 478 tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
986 479
987 Pixmap recoded_root_pmap = root_pixmap;
988
989 if (root_pixmap != None && root_depth != depth)
990 {
991#if XRENDER
992 if (bg_flags & BG_HAS_RENDER)
993 {
994 recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
995
996 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
997 Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
998
999 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); 480 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1000 Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); 481 img->convert_format (format, pix_colors [Color_bg])->replace (img);
1001 482
1002 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); 483 delete bg_img;
484 bg_img = img;
1003 485
1004 XRenderFreePicture (dpy, src);
1005 XRenderFreePicture (dpy, dst);
1006 }
1007 else
1008#endif
1009 recoded_root_pmap = None;
1010 }
1011
1012 if (recoded_root_pmap == None)
1013 return 0;
1014
1015 if (bg_pixmap == None
1016 || bg_pmap_width != window_width
1017 || bg_pmap_height != window_height)
1018 {
1019 if (bg_pixmap)
1020 XFreePixmap (dpy, bg_pixmap);
1021 bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1022 bg_pmap_width = window_width;
1023 bg_pmap_height = window_height;
1024 }
1025
1026 /* straightforward pixmap copy */
1027 while (sx < 0) sx += root_pmap_width;
1028 while (sy < 0) sy += root_pmap_height;
1029
1030 gcv.tile = recoded_root_pmap;
1031 gcv.fill_style = FillTiled;
1032 gcv.ts_x_origin = -sx;
1033 gcv.ts_y_origin = -sy;
1034 gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1035
1036 if (gc)
1037 {
1038 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1039 ret = true;
1040 bool need_blur = h_blurRadius && v_blurRadius;
1041 bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
1042
1043 if (!(bg_flags & BG_CLIENT_RENDER))
1044 {
1045 if (need_blur)
1046 {
1047 if (blur_pixmap (bg_pixmap, window_width, window_height))
1048 need_blur = false;
1049 }
1050 if (need_tint)
1051 {
1052 if (tint_pixmap (bg_pixmap, window_width, window_height))
1053 need_tint = false;
1054 }
1055 if (need_tint)
1056 {
1057 XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1058 if (ximage)
1059 {
1060 /* our own client-side tinting */
1061 tint_ximage (ximage);
1062
1063 XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1064 XDestroyImage (ximage);
1065 }
1066 }
1067 } /* server side rendering completed */
1068
1069 XFreeGC (dpy, gc);
1070 }
1071
1072 if (recoded_root_pmap != root_pixmap)
1073 XFreePixmap (dpy, recoded_root_pmap);
1074
1075 return ret; 486 return true;
1076} 487}
1077 488
1078void 489void
1079rxvt_term::bg_set_root_pixmap () 490rxvt_term::bg_set_root_pixmap ()
1080{ 491{
1081 Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]); 492 delete root_img;
1082 if (new_root_pixmap == None) 493 root_img = rxvt_img::new_from_root (this);
1083 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1084
1085 root_pixmap = new_root_pixmap;
1086} 494}
1087# endif /* ENABLE_TRANSPARENCY */ 495# endif /* BG_IMAGE_FROM_ROOT */
1088 496
1089bool 497void
1090rxvt_term::bg_render () 498rxvt_term::bg_render ()
1091{ 499{
500 if (bg_flags & BG_INHIBIT_RENDER)
501 return;
502
1092 bg_invalidate (); 503 bg_invalidate ();
1093# ifdef ENABLE_TRANSPARENCY 504# if BG_IMAGE_FROM_ROOT
1094 if (bg_flags & BG_IS_TRANSPARENT) 505 if (option (Opt_transparent))
1095 { 506 {
1096 /* we need to re-generate transparency pixmap in that case ! */ 507 /* we need to re-generate transparency pixmap in that case ! */
1097 if (make_transparency_pixmap ()) 508 if (render_root_image ())
509 bg_flags |= BG_IS_VALID | BG_IS_TRANSPARENT;
510 }
511# endif
512
513# if BG_IMAGE_FROM_FILE
514 if (fimage.img)
515 {
516 if (render_image (fimage))
1098 bg_flags |= BG_IS_VALID; 517 bg_flags |= BG_IS_VALID;
1099 } 518 }
1100# endif 519# endif
1101 520
1102# ifdef BG_IMAGE_FROM_FILE
1103 if (bg_image.flags & IM_IS_SET)
1104 {
1105 if (render_image (bg_image))
1106 bg_flags |= BG_IS_VALID;
1107 }
1108# endif
1109
1110 if (!(bg_flags & BG_IS_VALID)) 521 if (!(bg_flags & BG_IS_VALID))
1111 { 522 {
1112 if (bg_pixmap != None) 523 delete bg_img;
1113 { 524 bg_img = 0;
1114 XFreePixmap (dpy, bg_pixmap);
1115 bg_pixmap = None;
1116 }
1117 } 525 }
1118 526
1119 scr_recolour (false); 527 scr_recolour (false);
1120 bg_flags |= BG_NEEDS_REFRESH; 528 bg_flags |= BG_NEEDS_REFRESH;
1121 529
1122 bg_valid_since = ev::now (); 530 bg_valid_since = ev::now ();
1123
1124 return true;
1125} 531}
1126 532
1127void 533void
1128rxvt_term::bg_init () 534rxvt_term::bg_init ()
1129{ 535{
1130#ifdef ENABLE_TRANSPARENCY 536#if BG_IMAGE_FROM_ROOT
1131 shade = 100; 537 if (option (Opt_transparent))
538 {
539 if (rs [Rs_blurradius])
540 root_effects.set_blur (rs [Rs_blurradius]);
541
542 if (ISSET_PIXCOLOR (Color_tint))
543 root_effects.set_tint (pix_colors_focused [Color_tint]);
544
545 if (rs [Rs_shade])
546 root_effects.set_shade (rs [Rs_shade]);
547
548 bg_set_root_pixmap ();
549 XSelectInput (dpy, display->root, PropertyChangeMask);
550 rootwin_ev.start (display, display->root);
551 }
1132#endif 552#endif
1133 553
1134 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV); 554#if BG_IMAGE_FROM_FILE
1135#if XRENDER 555 if (rs[Rs_backgroundPixmap])
1136 int major, minor;
1137 if (XRenderQueryVersion (dpy, &major, &minor))
1138 bg_flags |= BG_HAS_RENDER;
1139 XFilters *filters = XRenderQueryFilters (dpy, vt);
1140 if (filters)
1141 { 556 {
1142 for (int i = 0; i < filters->nfilter; i++) 557 fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1143 if (!strcmp (filters->filter[i], FilterConvolution)) 558 if (!bg_window_position_sensitive ())
1144 bg_flags |= BG_HAS_RENDER_CONV; 559 update_background ();
1145
1146 XFree (filters);
1147 } 560 }
1148#endif 561#endif
1149} 562}
1150 563
1151#endif /* HAVE_BG_PIXMAP */
1152
1153#ifdef ENABLE_TRANSPARENCY
1154/* based on code from aterm-0.4.2 */
1155
1156static inline void
1157fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1158{
1159 for (int i = 0; i <= mask >> sh; i++)
1160 {
1161 uint32_t tmp;
1162 tmp = i * high;
1163 tmp += (mask >> sh) * low;
1164 lookup[i] = (tmp / 0xffff) << sh;
1165 }
1166}
1167
1168void 564void
1169rxvt_term::tint_ximage (XImage *ximage) 565rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1170{ 566{
1171 unsigned int size_r, size_g, size_b;
1172 int sh_r, sh_g, sh_b;
1173 uint32_t mask_r, mask_g, mask_b;
1174 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1175 unsigned short low;
1176 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1177
1178 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1179
1180 /* for convenience */
1181 mask_r = visual->red_mask;
1182 mask_g = visual->green_mask;
1183 mask_b = visual->blue_mask;
1184
1185 /* boring lookup table pre-initialization */
1186 sh_r = ecb_ctz32 (mask_r);
1187 sh_g = ecb_ctz32 (mask_g);
1188 sh_b = ecb_ctz32 (mask_b);
1189
1190 size_r = mask_r >> sh_r;
1191 size_g = mask_g >> sh_g;
1192 size_b = mask_b >> sh_b;
1193
1194 if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1195 return;
1196
1197 lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1198 lookup_r = lookup;
1199 lookup_g = lookup + size_r;
1200 lookup_b = lookup + size_r + size_g;
1201
1202 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); 567 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1203 568
1204 if (bg_flags & BG_TINT_SET) 569 if (tint_set)
1205 tint.get (c); 570 tint.get (c);
1206 571
1207 /* prepare limits for color transformation (each channel is handled separately) */
1208 if (shade > 100) 572 if (shade > 100)
1209 { 573 {
1210 c.r = c.r * (200 - shade) / 100; 574 c.r = c.r * (200 - shade) / 100;
1211 c.g = c.g * (200 - shade) / 100; 575 c.g = c.g * (200 - shade) / 100;
1212 c.b = c.b * (200 - shade) / 100; 576 c.b = c.b * (200 - shade) / 100;
1213
1214 low = 0xffff * (shade - 100) / 100;
1215 } 577 }
1216 else 578 else
1217 { 579 {
1218 c.r = c.r * shade / 100; 580 c.r = c.r * shade / 100;
1219 c.g = c.g * shade / 100; 581 c.g = c.g * shade / 100;
1220 c.b = c.b * shade / 100; 582 c.b = c.b * shade / 100;
1221
1222 low = 0;
1223 }
1224
1225 /* fill our lookup tables */
1226 fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1227 fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1228 fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1229
1230 /* apply table to input image (replacing colors by newly calculated ones) */
1231 if (ximage->bits_per_pixel == 32
1232 && ximage->byte_order == host_byte_order)
1233 { 583 }
1234 char *line = ximage->data;
1235 584
1236 for (int y = 0; y < ximage->height; y++) 585 img->contrast (c.r, c.g, c.b, c.a);
1237 { 586
1238 uint32_t *p = (uint32_t *)line; 587 if (shade > 100)
1239 for (int x = 0; x < ximage->width; x++)
1240 {
1241 *p = lookup_r[(*p & mask_r) >> sh_r] |
1242 lookup_g[(*p & mask_g) >> sh_g] |
1243 lookup_b[(*p & mask_b) >> sh_b];
1244 p++;
1245 }
1246 line += ximage->bytes_per_line;
1247 }
1248 } 588 {
1249 else 589 c.a = 0xffff;
590 c.r =
591 c.g =
592 c.b = 0xffff * (shade - 100) / 100;
593 img->brightness (c.r, c.g, c.b, c.a);
1250 { 594 }
1251 for (int y = 0; y < ximage->height; y++)
1252 for (int x = 0; x < ximage->width; x++)
1253 {
1254 unsigned long pixel = XGetPixel (ximage, x, y);
1255 pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1256 lookup_g[(pixel & mask_g) >> sh_g] |
1257 lookup_b[(pixel & mask_b) >> sh_b];
1258 XPutPixel (ximage, x, y, pixel);
1259 }
1260 }
1261
1262 free (lookup);
1263} 595}
1264#endif /* ENABLE_TRANSPARENCY */ 596
597#endif /* HAVE_BG_PIXMAP */

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