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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.215 by sf-exg, Thu May 17 10:31:26 2012 UTC vs.
Revision 1.236 by sf-exg, Sun Jun 10 13:07:56 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{
63 if (bg_pixmap) 33# if ENABLE_TRANSPARENCY
64 XFreePixmap (dpy, bg_pixmap); 34 delete root_img;
35# endif
36
37# if BG_IMAGE_FROM_FILE
38 fimage.destroy ();
39# endif
40
41 delete bg_img;
65} 42}
66 43
67bool 44bool
68rxvt_term::bg_set_position (int x, int y) 45rxvt_term::bg_set_position (int x, int y)
69{ 46{
… …
79} 56}
80 57
81bool 58bool
82rxvt_term::bg_window_size_sensitive () 59rxvt_term::bg_window_size_sensitive ()
83{ 60{
84# ifdef ENABLE_TRANSPARENCY 61# if ENABLE_TRANSPARENCY
85 if (bg_flags & BG_IS_TRANSPARENT) 62 if (bg_flags & BG_IS_TRANSPARENT)
86 return true; 63 return true;
87# endif 64# endif
88 65
89# ifdef BG_IMAGE_FROM_FILE 66# if BG_IMAGE_FROM_FILE
90 if (bg_image.flags & IM_IS_SET) 67 if (fimage.img)
91 { 68 {
92 if ((bg_image.flags & IM_IS_SIZE_SENSITIVE) 69 if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
93 || bg_image.width () > szHint.width 70 || fimage.img->w > szHint.width
94 || bg_image.height () > szHint.height) 71 || fimage.img->h > szHint.height)
95 return true; 72 return true;
96 } 73 }
97# endif 74# endif
98 75
99 return false; 76 return false;
100} 77}
101 78
102bool 79bool
103rxvt_term::bg_window_position_sensitive () 80rxvt_term::bg_window_position_sensitive ()
104{ 81{
105# ifdef ENABLE_TRANSPARENCY 82# if ENABLE_TRANSPARENCY
106 if (bg_flags & BG_IS_TRANSPARENT) 83 if (bg_flags & BG_IS_TRANSPARENT)
107 return true; 84 return true;
108# endif 85# endif
109 86
110# ifdef BG_IMAGE_FROM_FILE 87# if BG_IMAGE_FROM_FILE
111 if (bg_image.flags & IM_IS_SET) 88 if (fimage.img)
112 { 89 {
113 if (bg_image.flags & IM_ROOT_ALIGN) 90 if (fimage.flags & IM_ROOT_ALIGN)
114 return true; 91 return true;
115 } 92 }
116# endif 93# endif
117 94
118 return false; 95 return false;
119} 96}
120 97
121# ifdef BG_IMAGE_FROM_FILE 98# if BG_IMAGE_FROM_FILE
122static inline int 99static inline int
123make_align_position (int align, int window_size, int image_size) 100make_align_position (int align, int window_size, int image_size)
124{ 101{
125 if (align >= 0 && align <= 100) 102 if (align >= 0 && align <= 100)
126 return lerp (0, window_size - image_size, align); 103 return lerp (0, window_size - image_size, align);
… …
145 122
146 min_it (dst_size, target_size - dst_pos); 123 min_it (dst_size, target_size - dst_pos);
147 return src_pos; 124 return src_pos;
148} 125}
149 126
127static void
128parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
129{
130 if (!strcasecmp (style, "tiled"))
131 {
132 flags = IM_TILE;
133 w = h = noScale;
134 x = y = 0;
135 }
136 else if (!strcasecmp (style, "aspect-stretched"))
137 {
138 flags = IM_KEEP_ASPECT;
139 w = h = windowScale;
140 x = y = centerAlign;
141 }
142 else if (!strcasecmp (style, "stretched"))
143 {
144 flags = 0;
145 w = h = windowScale;
146 x = y = centerAlign;
147 }
148 else if (!strcasecmp (style, "centered"))
149 {
150 flags = 0;
151 w = h = noScale;
152 x = y = centerAlign;
153 }
154 else if (!strcasecmp (style, "root-tiled"))
155 {
156 flags = IM_TILE|IM_ROOT_ALIGN;
157 w = h = noScale;
158 x = y = 0;
159 }
160}
161
150bool 162bool
151rxvt_image::set_geometry (const char *geom, bool update) 163rxvt_image::set_geometry (const char *geom, bool update)
152{ 164{
153 bool changed = false; 165 bool changed = false;
154 int geom_flags = 0; 166 int geom_flags = 0;
155 int x = h_align; 167 int x = h_align;
156 int y = v_align; 168 int y = v_align;
157 unsigned int w = h_scale; 169 unsigned int w = h_scale;
158 unsigned int h = v_scale; 170 unsigned int h = v_scale;
159 unsigned long new_flags = 0; 171 uint8_t new_flags = 0;
160 172
161 if (geom == NULL) 173 if (geom == NULL)
162 return false; 174 return false;
163 175
164 if (geom[0]) 176 if (geom[0])
165 { 177 {
166 char **arr = rxvt_strsplit (':', geom); 178 char **arr = rxvt_strsplit (':', geom);
167 179
168 for (int i = 0; arr[i]; i++) 180 for (int i = 0; arr[i]; i++)
169 { 181 {
170 if (!strcasecmp (arr[i], "style=tiled")) 182 if (!strncasecmp (arr[i], "style=", 6))
171 { 183 {
172 new_flags = IM_TILE; 184 parse_style (arr[i] + 6, x, y, w, h, new_flags);
173 w = h = noScale;
174 x = y = 0;
175 geom_flags = WidthValue|HeightValue|XValue|YValue; 185 geom_flags = WidthValue|HeightValue|XValue|YValue;
176 }
177 else if (!strcasecmp (arr[i], "style=aspect-stretched"))
178 {
179 new_flags = IM_KEEP_ASPECT;
180 w = h = windowScale;
181 x = y = centerAlign;
182 geom_flags = WidthValue|HeightValue|XValue|YValue;
183 }
184 else if (!strcasecmp (arr[i], "style=stretched"))
185 {
186 new_flags = 0;
187 w = h = windowScale;
188 geom_flags = WidthValue|HeightValue;
189 }
190 else if (!strcasecmp (arr[i], "style=centered"))
191 {
192 new_flags = 0;
193 w = h = noScale;
194 x = y = centerAlign;
195 geom_flags = WidthValue|HeightValue|XValue|YValue;
196 }
197 else if (!strcasecmp (arr[i], "style=root-tiled"))
198 {
199 new_flags = IM_TILE|IM_ROOT_ALIGN;
200 w = h = noScale;
201 geom_flags = WidthValue|HeightValue;
202 } 186 }
203 else if (!strcasecmp (arr[i], "op=tile")) 187 else if (!strcasecmp (arr[i], "op=tile"))
204 new_flags |= IM_TILE; 188 new_flags |= IM_TILE;
205 else if (!strcasecmp (arr[i], "op=keep-aspect")) 189 else if (!strcasecmp (arr[i], "op=keep-aspect"))
206 new_flags |= IM_KEEP_ASPECT; 190 new_flags |= IM_KEEP_ASPECT;
… …
274 h = w; 258 h = w;
275 else if (!(geom_flags & WidthValue)) 259 else if (!(geom_flags & WidthValue))
276 w = h; 260 w = h;
277 } 261 }
278 262
279 min_it (w, 1000);
280 min_it (h, 1000);
281 clamp_it (x, -100, 200); 263 clamp_it (x, -100, 200);
282 clamp_it (y, -100, 200); 264 clamp_it (y, -100, 200);
283 265
284 if (flags != new_flags 266 if (flags != new_flags
285 || h_scale != w 267 || h_scale != w
… …
293 h_align = x; 275 h_align = x;
294 v_align = y; 276 v_align = y;
295 changed = true; 277 changed = true;
296 } 278 }
297 279
298 if (!(flags & IM_TILE) 280 if (is_size_sensitive ())
299 || h_scale || v_scale
300 || (!(flags & IM_ROOT_ALIGN) && (h_align || v_align)))
301 flags |= IM_IS_SIZE_SENSITIVE; 281 flags |= IM_IS_SIZE_SENSITIVE;
302 else 282 else
303 flags &= ~IM_IS_SIZE_SENSITIVE; 283 flags &= ~IM_IS_SIZE_SENSITIVE;
304 284
305 return changed; 285 return changed;
306} 286}
307 287
308void 288void
309rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y) 289rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
310{ 290{
311 int image_width = image.width (); 291 int image_width = image.img->w;
312 int image_height = image.height (); 292 int image_height = image.img->h;
313 int target_width = szHint.width; 293 int target_width = szHint.width;
314 int target_height = szHint.height; 294 int target_height = szHint.height;
295 int h_scale = min (image.h_scale, 32767 * 100 / target_width);
296 int v_scale = min (image.v_scale, 32767 * 100 / target_height);
315 297
316 w = image.h_scale * target_width / 100; 298 w = h_scale * target_width / 100;
317 h = image.v_scale * target_height / 100; 299 h = v_scale * target_height / 100;
318 300
319 if (image.flags & IM_KEEP_ASPECT) 301 if (image.flags & IM_KEEP_ASPECT)
320 { 302 {
321 float scale = (float)w / image_width; 303 float scale = (float)w / image_width;
322 min_it (scale, (float)h / image_height); 304 min_it (scale, (float)h / image_height);
… …
337 x = make_align_position (image.h_align, target_width, w); 319 x = make_align_position (image.h_align, target_width, w);
338 y = make_align_position (image.v_align, target_height, h); 320 y = make_align_position (image.v_align, target_height, h);
339 } 321 }
340} 322}
341 323
342# ifdef HAVE_PIXBUF
343bool
344rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
345 int src_x, int src_y, int dst_x, int dst_y,
346 unsigned int width, unsigned int height)
347{
348 XImage *ximage;
349 char *line;
350 int width_r, width_g, width_b, width_a;
351 int sh_r, sh_g, sh_b, sh_a;
352 uint32_t alpha_mask;
353 int rowstride;
354 int channels;
355 unsigned char *row;
356
357 if (visual->c_class != TrueColor)
358 return false;
359
360#if XRENDER
361 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
362 if (format)
363 alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
364 else
365#endif
366 alpha_mask = 0;
367
368 width_r = ecb_popcount32 (visual->red_mask);
369 width_g = ecb_popcount32 (visual->green_mask);
370 width_b = ecb_popcount32 (visual->blue_mask);
371 width_a = ecb_popcount32 (alpha_mask);
372
373 if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
374 return false;
375
376 sh_r = ecb_ctz32 (visual->red_mask);
377 sh_g = ecb_ctz32 (visual->green_mask);
378 sh_b = ecb_ctz32 (visual->blue_mask);
379 sh_a = ecb_ctz32 (alpha_mask);
380
381 if (width > 32767 || height > 32767)
382 return false;
383
384 ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, 0,
385 width, height, 32, 0);
386 if (!ximage)
387 return false;
388
389 if (height > INT_MAX / ximage->bytes_per_line
390 || !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
391 {
392 XDestroyImage (ximage);
393 return false;
394 }
395
396 ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
397
398 rowstride = gdk_pixbuf_get_rowstride (pixbuf);
399 channels = gdk_pixbuf_get_n_channels (pixbuf);
400 row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
401 line = ximage->data;
402
403 rgba c (0, 0, 0);
404
405 if (channels == 4 && alpha_mask == 0)
406 {
407 pix_colors[Color_bg].get (c);
408 c.r >>= 8;
409 c.g >>= 8;
410 c.b >>= 8;
411 }
412
413 for (int y = 0; y < height; y++)
414 {
415 for (int x = 0; x < width; x++)
416 {
417 unsigned char *pixel = row + x * channels;
418 uint32_t value;
419 unsigned char r, g, b, a;
420
421 if (channels == 4)
422 {
423 a = pixel[3];
424 r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
425 g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
426 b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
427 }
428 else
429 {
430 a = 0xff;
431 r = pixel[0];
432 g = pixel[1];
433 b = pixel[2];
434 }
435
436 value = ((r >> (8 - width_r)) << sh_r)
437 | ((g >> (8 - width_g)) << sh_g)
438 | ((b >> (8 - width_b)) << sh_b)
439 | ((a >> (8 - width_a)) << sh_a);
440
441 if (ximage->bits_per_pixel == 32)
442 ((uint32_t *)line)[x] = value;
443 else
444 XPutPixel (ximage, x, y, value);
445 }
446
447 row += rowstride;
448 line += ximage->bytes_per_line;
449 }
450
451 XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
452 XDestroyImage (ximage);
453 return true;
454}
455
456bool 324bool
457rxvt_term::render_image (rxvt_image &image) 325rxvt_term::render_image (rxvt_image &image)
458{ 326{
459 GdkPixbuf *pixbuf = image.pixbuf;
460 if (!pixbuf)
461 return false;
462
463 bool need_blend = bg_flags & BG_IS_VALID;
464
465 if (need_blend
466 && !(bg_flags & BG_HAS_RENDER))
467 return false;
468
469 GdkPixbuf *result;
470
471 int image_width = gdk_pixbuf_get_width (pixbuf);
472 int image_height = gdk_pixbuf_get_height (pixbuf);
473
474 int target_width = szHint.width; 327 int target_width = szHint.width;
475 int target_height = szHint.height; 328 int target_height = szHint.height;
476 int new_pmap_width = target_width;
477 int new_pmap_height = target_height;
478 329
479 int x = 0; 330 int x = 0;
480 int y = 0; 331 int y = 0;
481 int w = 0; 332 int w = 0;
482 int h = 0; 333 int h = 0;
… …
488 || y >= target_height 339 || y >= target_height
489 || x + w <= 0 340 || x + w <= 0
490 || y + h <= 0)) 341 || y + h <= 0))
491 return false; 342 return false;
492 343
493 result = pixbuf; 344 rxvt_img *img = image.img->scale (w, h);
494 345
495 if (w != image_width 346 if (image.flags & IM_TILE)
496 || h != image_height) 347 img->repeat_mode (RepeatNormal);
497 {
498 result = gdk_pixbuf_scale_simple (pixbuf,
499 w, h,
500 GDK_INTERP_BILINEAR);
501 }
502
503 if (!result)
504 return false;
505
506 bool ret = false;
507
508 XGCValues gcv;
509 GC gc;
510 Pixmap tmp_pixmap;
511
512 image_width = gdk_pixbuf_get_width (result);
513 image_height = gdk_pixbuf_get_height (result);
514
515 if (need_blend)
516 {
517 tmp_pixmap = bg_pixmap;
518 bg_pixmap = None;
519 }
520 else 348 else
521 { 349 img->repeat_mode (RepeatNone);
522 if (image.flags & IM_TILE) 350 img->sub_rect (-x, -y, target_width, target_height)->replace (img);
523 { 351
524 new_pmap_width = min (image_width, target_width); 352 if (bg_flags & BG_IS_VALID)
525 new_pmap_height = min (image_height, target_height);
526 }
527 } 353 {
528 354 double factor = image.alpha * 1. / 0xffff;
529 if (bg_pixmap == None 355 bg_img->blend (img, factor)->replace (img);
530 || bg_pmap_width != new_pmap_width
531 || bg_pmap_height != new_pmap_height)
532 { 356 }
533 if (bg_pixmap)
534 XFreePixmap (dpy, bg_pixmap);
535 bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
536 bg_pmap_width = new_pmap_width;
537 bg_pmap_height = new_pmap_height;
538 }
539 357
540 gcv.foreground = pix_colors[Color_bg];
541 gc = XCreateGC (dpy, vt, GCForeground, &gcv);
542
543 if (gc)
544 {
545 if (image.flags & IM_TILE)
546 {
547 Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
548 pixbuf_to_pixmap (result, tile, gc,
549 0, 0,
550 0, 0,
551 image_width, image_height);
552
553 gcv.tile = tile;
554 gcv.fill_style = FillTiled;
555 gcv.ts_x_origin = x;
556 gcv.ts_y_origin = y;
557 XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
558
559 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
560 XFreePixmap (dpy, tile);
561 }
562 else
563 {
564 int src_x, src_y, dst_x, dst_y;
565 int dst_width, dst_height;
566
567 src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
568 src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
569
570 if (dst_x > 0 || dst_y > 0
571 || dst_x + dst_width < new_pmap_width
572 || dst_y + dst_height < new_pmap_height)
573 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
574
575 if (dst_x < new_pmap_width && dst_y < new_pmap_height)
576 pixbuf_to_pixmap (result, bg_pixmap, gc,
577 src_x, src_y,
578 dst_x, dst_y,
579 dst_width, dst_height);
580 }
581
582#if XRENDER
583 if (need_blend)
584 {
585 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); 358 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
359 img->convert_format (format, pix_colors [Color_bg])->replace (img);
586 360
587 Picture src = XRenderCreatePicture (dpy, tmp_pixmap, format, 0, 0); 361 delete bg_img;
362 bg_img = img;
588 363
589 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
590
591 Picture mask = create_xrender_mask (dpy, vt, False, False);
592
593 XRenderColor mask_c;
594
595 mask_c.alpha = 0x8000;
596 mask_c.red =
597 mask_c.green =
598 mask_c.blue = 0;
599 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
600
601 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
602
603 XRenderFreePicture (dpy, src);
604 XRenderFreePicture (dpy, dst);
605 XRenderFreePicture (dpy, mask);
606 }
607#endif
608
609 XFreeGC (dpy, gc);
610
611 ret = true;
612 }
613
614 if (result != pixbuf)
615 g_object_unref (result);
616
617 if (need_blend)
618 XFreePixmap (dpy, tmp_pixmap);
619
620 return ret; 364 return true;
621} 365}
622# endif /* HAVE_PIXBUF */
623 366
367rxvt_image::rxvt_image ()
368{
369 alpha = 0xffff;
370 flags = 0;
371 h_scale =
372 v_scale = defaultScale;
373 h_align =
374 v_align = defaultAlign;
375
376 img = 0;
377}
378
624bool 379bool
625rxvt_image::set_file (const char *file) 380rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
626{ 381{
627 if (!file || !*file) 382 if (!file || !*file)
628 return false; 383 return false;
629 384
630 bool ret = false;
631 const char *p = strchr (file, ';'); 385 const char *p = strchr (file, ';');
632 386
633 if (p) 387 if (p)
634 { 388 {
635 size_t len = p - file; 389 size_t len = p - file;
… …
637 memcpy (f, file, len); 391 memcpy (f, file, len);
638 f[len] = '\0'; 392 f[len] = '\0';
639 file = f; 393 file = f;
640 } 394 }
641 395
642# ifdef HAVE_PIXBUF 396 bool ret = set_file (s, file);
643 GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL); 397 alpha = 0x8000;
644 if (image)
645 {
646 if (pixbuf)
647 g_object_unref (pixbuf);
648 pixbuf = image;
649 flags |= IM_IS_SET;
650 ret = true;
651 }
652# endif
653
654 if (ret) 398 if (ret)
655 {
656 if (p)
657 set_geometry (p + 1); 399 set_geometry (p ? p + 1 : "");
658 else
659 set_default_geometry ();
660 }
661
662 return ret; 400 return ret;
663} 401}
664 402
403bool
404rxvt_image::set_file (rxvt_screen *s, const char *file)
405{
406 delete img;
407 img = rxvt_img::new_from_file (s, file);
408 return img != 0;
409}
410
665# endif /* BG_IMAGE_FROM_FILE */ 411# endif /* BG_IMAGE_FROM_FILE */
666 412
667# ifdef ENABLE_TRANSPARENCY
668bool 413bool
669rxvt_term::bg_set_blur (const char *geom) 414image_effects::set_blur (const char *geom)
670{ 415{
671 bool changed = false; 416 bool changed = false;
672 unsigned int hr, vr; 417 unsigned int hr, vr;
673 int junk; 418 int junk;
674 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); 419 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
… …
695 440
696 return changed; 441 return changed;
697} 442}
698 443
699bool 444bool
700rxvt_term::bg_set_tint (rxvt_color &new_tint) 445image_effects::set_tint (const rxvt_color &new_tint)
701{ 446{
702 if (!(bg_flags & BG_TINT_SET) || tint != new_tint) 447 if (!tint_set || tint != new_tint)
703 { 448 {
704 tint = new_tint; 449 tint = new_tint;
705 bg_flags |= BG_TINT_SET; 450 tint_set = true;
706
707 rgba c;
708 tint.get (c);
709 if ((c.r <= 0x00ff || c.r >= 0xff00)
710 && (c.g <= 0x00ff || c.g >= 0xff00)
711 && (c.b <= 0x00ff || c.b >= 0xff00))
712 bg_flags |= BG_TINT_BITAND;
713 else
714 bg_flags &= ~BG_TINT_BITAND;
715 451
716 return true; 452 return true;
717 } 453 }
718 454
719 return false; 455 return false;
720} 456}
721 457
722bool 458bool
723rxvt_term::bg_set_shade (const char *shade_str) 459image_effects::set_shade (const char *shade_str)
724{ 460{
725 int new_shade = atoi (shade_str); 461 int new_shade = atoi (shade_str);
726 462
727 clamp_it (new_shade, -100, 200); 463 clamp_it (new_shade, -100, 200);
728 if (new_shade < 0) 464 if (new_shade < 0)
… …
735 } 471 }
736 472
737 return false; 473 return false;
738} 474}
739 475
740#if XRENDER 476# if ENABLE_TRANSPARENCY
741static void
742get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
743{
744 double sigma = radius / 2.0;
745 double scale = sqrt (2.0 * M_PI) * sigma;
746 double sum = 0.0;
747
748 for (int i = 0; i < width; i++)
749 {
750 double x = i - width / 2;
751 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
752 sum += kernel[i];
753 }
754
755 params[0] = XDoubleToFixed (width);
756 params[1] = XDoubleToFixed (1);
757
758 for (int i = 0; i < width; i++)
759 params[i+2] = XDoubleToFixed (kernel[i] / sum);
760}
761#endif
762
763bool
764rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
765{
766 bool ret = false;
767#if XRENDER
768 if (!(bg_flags & BG_HAS_RENDER_CONV))
769 return false;
770
771 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
772 double *kernel = (double *)malloc (size * sizeof (double));
773 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
774
775 XRenderPictureAttributes pa;
776 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
777
778 pa.repeat = RepeatPad;
779 Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
780 Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
781 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
782 XFreePixmap (dpy, tmp);
783
784 if (kernel && params)
785 {
786 size = h_blurRadius * 2 + 1;
787 get_gaussian_kernel (h_blurRadius, size, kernel, params);
788
789 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
790 XRenderComposite (dpy,
791 PictOpSrc,
792 src,
793 None,
794 dst,
795 0, 0,
796 0, 0,
797 0, 0,
798 width, height);
799
800 ::swap (src, dst);
801
802 size = v_blurRadius * 2 + 1;
803 get_gaussian_kernel (v_blurRadius, size, kernel, params);
804 ::swap (params[0], params[1]);
805
806 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
807 XRenderComposite (dpy,
808 PictOpSrc,
809 src,
810 None,
811 dst,
812 0, 0,
813 0, 0,
814 0, 0,
815 width, height);
816
817 ret = true;
818 }
819
820 free (kernel);
821 free (params);
822 XRenderFreePicture (dpy, src);
823 XRenderFreePicture (dpy, dst);
824#endif
825 return ret;
826}
827
828bool
829rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
830{
831 bool ret = false;
832
833 if (shade == 100 && (bg_flags & BG_TINT_BITAND))
834 {
835 XGCValues gcv;
836 GC gc;
837
838 /* In this case we can tint image server-side getting significant
839 * performance improvements, as we eliminate XImage transfer
840 */
841 gcv.foreground = Pixel (tint);
842 gcv.function = GXand;
843 gcv.fill_style = FillSolid;
844 gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
845 if (gc)
846 {
847 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
848 ret = true;
849 XFreeGC (dpy, gc);
850 }
851 }
852# if XRENDER
853 else if (bg_flags & BG_HAS_RENDER)
854 {
855 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
856
857 if (bg_flags & BG_TINT_SET)
858 tint.get (c);
859
860 if (shade <= 100)
861 {
862 c.r = c.r * shade / 100;
863 c.g = c.g * shade / 100;
864 c.b = c.b * shade / 100;
865 }
866 else
867 {
868 c.r = c.r * (200 - shade) / 100;
869 c.g = c.g * (200 - shade) / 100;
870 c.b = c.b * (200 - shade) / 100;
871 }
872
873 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
874
875 Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
876
877 Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
878
879 Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
880
881 XRenderColor mask_c;
882
883 mask_c.alpha = 0xffff;
884 mask_c.red =
885 mask_c.green =
886 mask_c.blue = 0;
887 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
888
889 mask_c.alpha = 0;
890 mask_c.red = 0xffff - c.r;
891 mask_c.green = 0xffff - c.g;
892 mask_c.blue = 0xffff - c.b;
893 XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
894
895 XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
896
897 if (shade > 100)
898 {
899 mask_c.alpha = 0;
900 mask_c.red =
901 mask_c.green =
902 mask_c.blue = 0xffff * (shade - 100) / 100;
903 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
904
905 XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
906 }
907
908 ret = true;
909
910 XRenderFreePicture (dpy, mask_pic);
911 XRenderFreePicture (dpy, overlay_pic);
912 XRenderFreePicture (dpy, back_pic);
913 }
914# endif
915
916 return ret;
917}
918
919/* 477/*
920 * Builds a pixmap of the same size as the terminal window that contains 478 * Builds a pixmap of the same size as the terminal window that contains
921 * the tiled portion of the root pixmap that is supposed to be covered by 479 * the tiled portion of the root pixmap that is supposed to be covered by
922 * our window. 480 * our window.
923 */ 481 */
924bool 482bool
925rxvt_term::make_transparency_pixmap () 483rxvt_term::render_root_image ()
926{ 484{
927 bool ret = false;
928
929 /* root dimensions may change from call to call - but Display structure should 485 /* root dimensions may change from call to call - but Display structure should
930 * be always up-to-date, so let's use it : 486 * be always up-to-date, so let's use it :
931 */ 487 */
932 int screen = display->screen; 488 int screen = display->screen;
933 int root_depth = DefaultDepth (dpy, screen);
934 int root_width = DisplayWidth (dpy, screen); 489 int root_width = DisplayWidth (dpy, screen);
935 int root_height = DisplayHeight (dpy, screen); 490 int root_height = DisplayHeight (dpy, screen);
936 unsigned int root_pmap_width, root_pmap_height;
937 int window_width = szHint.width; 491 int window_width = szHint.width;
938 int window_height = szHint.height; 492 int window_height = szHint.height;
939 int sx, sy; 493 int sx, sy;
940 XGCValues gcv;
941 GC gc;
942 494
943 sx = target_x; 495 sx = target_x;
944 sy = target_y; 496 sy = target_y;
497
498 if (!root_img)
499 return false;
945 500
946 /* check if we are outside of the visible part of the virtual screen : */ 501 /* check if we are outside of the visible part of the virtual screen : */
947 if (sx + window_width <= 0 || sy + window_height <= 0 502 if (sx + window_width <= 0 || sy + window_height <= 0
948 || sx >= root_width || sy >= root_height) 503 || sx >= root_width || sy >= root_height)
949 return 0; 504 return 0;
950 505
951 // validate root pixmap and get its size 506 while (sx < 0) sx += root_img->w;
952 if (root_pixmap != None) 507 while (sy < 0) sy += root_img->h;
953 {
954 Window wdummy;
955 int idummy;
956 unsigned int udummy;
957 508
958 allowedxerror = -1; 509 rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
959 510
960 if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) 511 if (root_effects.need_blur ())
961 root_pixmap = None; 512 img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
962 513
963 allowedxerror = 0; 514 if (root_effects.need_tint ())
964 } 515 tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
965 516
966 Pixmap recoded_root_pmap = root_pixmap;
967
968 if (root_pixmap != None && root_depth != depth)
969 {
970#if XRENDER
971 if (bg_flags & BG_HAS_RENDER)
972 {
973 recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
974
975 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
976 Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
977
978 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); 517 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
979 Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); 518 img->convert_format (format, pix_colors [Color_bg])->replace (img);
980 519
981 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); 520 delete bg_img;
521 bg_img = img;
982 522
983 XRenderFreePicture (dpy, src);
984 XRenderFreePicture (dpy, dst);
985 }
986 else
987#endif
988 recoded_root_pmap = None;
989 }
990
991 if (recoded_root_pmap == None)
992 return 0;
993
994 if (bg_pixmap == None
995 || bg_pmap_width != window_width
996 || bg_pmap_height != window_height)
997 {
998 if (bg_pixmap)
999 XFreePixmap (dpy, bg_pixmap);
1000 bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1001 bg_pmap_width = window_width;
1002 bg_pmap_height = window_height;
1003 }
1004
1005 /* straightforward pixmap copy */
1006 while (sx < 0) sx += root_pmap_width;
1007 while (sy < 0) sy += root_pmap_height;
1008
1009 gcv.tile = recoded_root_pmap;
1010 gcv.fill_style = FillTiled;
1011 gcv.ts_x_origin = -sx;
1012 gcv.ts_y_origin = -sy;
1013 gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1014
1015 if (gc)
1016 {
1017 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1018 ret = true;
1019 bool need_blur = h_blurRadius && v_blurRadius;
1020 bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
1021
1022 if (!(bg_flags & BG_CLIENT_RENDER))
1023 {
1024 if (need_blur)
1025 {
1026 if (blur_pixmap (bg_pixmap, window_width, window_height))
1027 need_blur = false;
1028 }
1029 if (need_tint)
1030 {
1031 if (tint_pixmap (bg_pixmap, window_width, window_height))
1032 need_tint = false;
1033 }
1034 if (need_tint)
1035 {
1036 XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1037 if (ximage)
1038 {
1039 /* our own client-side tinting */
1040 tint_ximage (ximage);
1041
1042 XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1043 XDestroyImage (ximage);
1044 }
1045 }
1046 } /* server side rendering completed */
1047
1048 XFreeGC (dpy, gc);
1049 }
1050
1051 if (recoded_root_pmap != root_pixmap)
1052 XFreePixmap (dpy, recoded_root_pmap);
1053
1054 return ret; 523 return true;
1055} 524}
1056 525
1057void 526void
1058rxvt_term::bg_set_root_pixmap () 527rxvt_term::bg_set_root_pixmap ()
1059{ 528{
1060 Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]); 529 delete root_img;
1061 if (new_root_pixmap == None) 530 root_img = rxvt_img::new_from_root (this);
1062 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1063
1064 root_pixmap = new_root_pixmap;
1065} 531}
1066# endif /* ENABLE_TRANSPARENCY */ 532# endif /* ENABLE_TRANSPARENCY */
1067 533
1068bool 534void
1069rxvt_term::bg_render () 535rxvt_term::bg_render ()
1070{ 536{
537 if (bg_flags & BG_INHIBIT_RENDER)
538 return;
539
1071 bg_invalidate (); 540 bg_invalidate ();
1072# ifdef ENABLE_TRANSPARENCY 541# if ENABLE_TRANSPARENCY
1073 if (bg_flags & BG_IS_TRANSPARENT) 542 if (bg_flags & BG_IS_TRANSPARENT)
1074 { 543 {
1075 /* we need to re-generate transparency pixmap in that case ! */ 544 /* we need to re-generate transparency pixmap in that case ! */
1076 if (make_transparency_pixmap ()) 545 if (render_root_image ())
1077 bg_flags |= BG_IS_VALID; 546 bg_flags |= BG_IS_VALID;
1078 } 547 }
1079# endif 548# endif
1080 549
1081# ifdef BG_IMAGE_FROM_FILE 550# if BG_IMAGE_FROM_FILE
1082 if (bg_image.flags & IM_IS_SET) 551 if (fimage.img)
1083 { 552 {
1084 if (render_image (bg_image)) 553 if (render_image (fimage))
1085 bg_flags |= BG_IS_VALID; 554 bg_flags |= BG_IS_VALID;
1086 } 555 }
1087# endif 556# endif
1088 557
1089 if (!(bg_flags & BG_IS_VALID)) 558 if (!(bg_flags & BG_IS_VALID))
1090 { 559 {
1091 if (bg_pixmap != None) 560 delete bg_img;
1092 { 561 bg_img = 0;
1093 XFreePixmap (dpy, bg_pixmap);
1094 bg_pixmap = None;
1095 }
1096 } 562 }
1097 563
1098 scr_recolour (false); 564 scr_recolour (false);
1099 bg_flags |= BG_NEEDS_REFRESH; 565 bg_flags |= BG_NEEDS_REFRESH;
1100 566
1101 bg_valid_since = ev::now (); 567 bg_valid_since = ev::now ();
1102
1103 return true;
1104} 568}
1105 569
1106void 570void
1107rxvt_term::bg_init () 571rxvt_term::bg_init ()
1108{ 572{
1109#ifdef ENABLE_TRANSPARENCY 573#if BG_IMAGE_FROM_FILE
1110 shade = 100; 574 if (rs[Rs_backgroundPixmap])
575 {
576 if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
577 && !bg_window_position_sensitive ())
578 update_background ();
579 }
1111#endif 580#endif
1112
1113 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
1114#if XRENDER
1115 int major, minor;
1116 if (XRenderQueryVersion (dpy, &major, &minor))
1117 bg_flags |= BG_HAS_RENDER;
1118 XFilters *filters = XRenderQueryFilters (dpy, vt);
1119 if (filters)
1120 {
1121 for (int i = 0; i < filters->nfilter; i++)
1122 if (!strcmp (filters->filter[i], FilterConvolution))
1123 bg_flags |= BG_HAS_RENDER_CONV;
1124
1125 XFree (filters);
1126 }
1127#endif
1128}
1129
1130#endif /* HAVE_BG_PIXMAP */
1131
1132#ifdef ENABLE_TRANSPARENCY
1133/* based on code from aterm-0.4.2 */
1134
1135static inline void
1136fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1137{
1138 for (int i = 0; i <= mask >> sh; i++)
1139 {
1140 uint32_t tmp;
1141 tmp = i * high;
1142 tmp += (mask >> sh) * low;
1143 lookup[i] = (tmp / 0xffff) << sh;
1144 }
1145} 581}
1146 582
1147void 583void
1148rxvt_term::tint_ximage (XImage *ximage) 584rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1149{ 585{
1150 unsigned int size_r, size_g, size_b;
1151 int sh_r, sh_g, sh_b;
1152 uint32_t mask_r, mask_g, mask_b;
1153 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1154 unsigned short low;
1155 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1156
1157 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1158
1159 /* for convenience */
1160 mask_r = visual->red_mask;
1161 mask_g = visual->green_mask;
1162 mask_b = visual->blue_mask;
1163
1164 /* boring lookup table pre-initialization */
1165 sh_r = ecb_ctz32 (mask_r);
1166 sh_g = ecb_ctz32 (mask_g);
1167 sh_b = ecb_ctz32 (mask_b);
1168
1169 size_r = mask_r >> sh_r;
1170 size_g = mask_g >> sh_g;
1171 size_b = mask_b >> sh_b;
1172
1173 if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1174 return;
1175
1176 lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1177 lookup_r = lookup;
1178 lookup_g = lookup + size_r;
1179 lookup_b = lookup + size_r + size_g;
1180
1181 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); 586 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1182 587
1183 if (bg_flags & BG_TINT_SET) 588 if (tint_set)
1184 tint.get (c); 589 tint.get (c);
1185 590
1186 /* prepare limits for color transformation (each channel is handled separately) */
1187 if (shade > 100) 591 if (shade > 100)
1188 { 592 {
1189 c.r = c.r * (200 - shade) / 100; 593 c.r = c.r * (200 - shade) / 100;
1190 c.g = c.g * (200 - shade) / 100; 594 c.g = c.g * (200 - shade) / 100;
1191 c.b = c.b * (200 - shade) / 100; 595 c.b = c.b * (200 - shade) / 100;
1192
1193 low = 0xffff * (shade - 100) / 100;
1194 } 596 }
1195 else 597 else
1196 { 598 {
1197 c.r = c.r * shade / 100; 599 c.r = c.r * shade / 100;
1198 c.g = c.g * shade / 100; 600 c.g = c.g * shade / 100;
1199 c.b = c.b * shade / 100; 601 c.b = c.b * shade / 100;
1200
1201 low = 0;
1202 }
1203
1204 /* fill our lookup tables */
1205 fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1206 fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1207 fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1208
1209 /* apply table to input image (replacing colors by newly calculated ones) */
1210 if (ximage->bits_per_pixel == 32
1211 && ximage->byte_order == host_byte_order)
1212 { 602 }
1213 char *line = ximage->data;
1214 603
1215 for (int y = 0; y < ximage->height; y++) 604 img->contrast (c.r, c.g, c.b, c.a);
1216 { 605
1217 uint32_t *p = (uint32_t *)line; 606 if (shade > 100)
1218 for (int x = 0; x < ximage->width; x++)
1219 {
1220 *p = lookup_r[(*p & mask_r) >> sh_r] |
1221 lookup_g[(*p & mask_g) >> sh_g] |
1222 lookup_b[(*p & mask_b) >> sh_b];
1223 p++;
1224 }
1225 line += ximage->bytes_per_line;
1226 }
1227 } 607 {
1228 else 608 c.a = 0xffff;
609 c.r =
610 c.g =
611 c.b = 0xffff * (shade - 100) / 100;
612 img->brightness (c.r, c.g, c.b, c.a);
1229 { 613 }
1230 for (int y = 0; y < ximage->height; y++)
1231 for (int x = 0; x < ximage->width; x++)
1232 {
1233 unsigned long pixel = XGetPixel (ximage, x, y);
1234 pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1235 lookup_g[(pixel & mask_g) >> sh_g] |
1236 lookup_b[(pixel & mask_b) >> sh_b];
1237 XPutPixel (ximage, x, y, pixel);
1238 }
1239 }
1240
1241 free (lookup);
1242} 614}
1243#endif /* ENABLE_TRANSPARENCY */ 615
616#endif /* HAVE_BG_PIXMAP */

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