[ViewVC] Diff of: cvs/rxvt-unicode/src/background.C

Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.182 by sf-exg, Sun Dec 25 17:01:21 2011 UTC vs.
Revision 1.205 by sf-exg, Wed Apr 11 10:06:45 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 <cmath>	25	#include <math.h>
26	#include "../config.h" /* NECESSARY */	26	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	27	#include "rxvt.h" /* NECESSARY */
28		28
29	#if XRENDER	29	#if XRENDER
30	# include <X11/extensions/Xrender.h>	30	# include <X11/extensions/Xrender.h>
…		…
32		32
33	#ifndef FilterConvolution	33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"	34	#define FilterConvolution "convolution"
35	#endif	35	#endif
36		36
		37	#ifndef RepeatPad
		38	#define RepeatPad True
		39	#endif
		40
37	#ifdef HAVE_BG_PIXMAP	41	#ifdef HAVE_BG_PIXMAP
		42	# if XRENDER
		43	static Picture
		44	create_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
38	void	60	void
39	rxvt_term::bg_destroy ()	61	rxvt_term::bg_destroy ()
40	{	62	{
41	#ifdef HAVE_AFTERIMAGE
42	if (original_asim)
43	safe_asimage_destroy (original_asim);
44	if (asv)
45	destroy_asvisual (asv, 0);
46	if (asimman)
47	destroy_image_manager (asimman, 0);
48	#endif
49
50	#ifdef HAVE_PIXBUF	63	#ifdef HAVE_PIXBUF
51	if (pixbuf)	64	if (pixbuf)
52	g_object_unref (pixbuf);	65	g_object_unref (pixbuf);
53	#endif	66	#endif
54		67
…		…
107		120
108	return false;	121	return false;
109	}	122	}
110		123
111	# ifdef BG_IMAGE_FROM_FILE	124	# ifdef BG_IMAGE_FROM_FILE
112	static inline bool
113	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
114	{
115	if (geom_flags & flag)
116	{
117	if (new_value > 1000)
118	new_value = 1000;
119	if (new_value != scale)
120	{
121	scale = new_value;
122	return true;
123	}
124	}
125	return false;
126	}
127
128	static inline bool
129	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
130	{
131	if (geom_flags & flag)
132	{
133	if (new_value < -100)
134	new_value = -100;
135	else if (new_value > 200)
136	new_value = 200;
137	if (new_value != align)
138	{
139	align = new_value;
140	return true;
141	}
142	}
143	return false;
144	}
145
146	static inline int	125	static inline int
147	make_align_position (int align, int window_size, int image_size)	126	make_align_position (int align, int window_size, int image_size)
148	{	127	{
149	int diff = window_size - image_size;	128	int diff = window_size - image_size;
150	int smaller = min (image_size, window_size);	129	int smaller = min (image_size, window_size);
151		130
152	if (align >= 0 && align <= 100)	131	if (align >= 0 && align <= 100)
153	return diff * align / 100;	132	return diff * align / 100;
154	else if (align > 100 && align <= 200)	133	else if (align > 100)
155	return (align - 100) * smaller / 100 + window_size - smaller;	134	return (align - 100) * smaller / 100 + window_size - smaller;
156	else if (align >= -100 && align < 0)	135	else
157	return (align + 100) * smaller / 100 - image_size;	136	return (align + 100) * smaller / 100 - image_size;
158	return 0;
159	}	137	}
160		138
161	static inline int	139	static inline int
162	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	140	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
163	{	141	{
…		…
169	src_pos = -pos;	147	src_pos = -pos;
170	dst_pos = 0;	148	dst_pos = 0;
171	dst_size += pos;	149	dst_size += pos;
172	}	150	}
173		151
174	if (dst_pos + dst_size > target_size)
175	dst_size = target_size - dst_pos;	152	min_it (dst_size, target_size - dst_pos);
176	return src_pos;	153	return src_pos;
177	}	154	}
178		155
179	bool	156	bool
180	rxvt_term::bg_set_geometry (const char *geom, bool update)	157	rxvt_term::bg_set_geometry (const char *geom, bool update)
181	{	158	{
182	bool changed = false;	159	bool changed = false;
183	int geom_flags = 0;	160	int geom_flags = 0;
184	int x = 0, y = 0;	161	int x = h_align;
		162	int y = v_align;
185	unsigned int w = 0, h = 0;	163	unsigned int w = h_scale;
186	unsigned long new_flags = bg_flags & ~BG_GEOMETRY_FLAGS;	164	unsigned int h = v_scale;
		165	unsigned long new_flags = 0;
187		166
188	if (geom == NULL)	167	if (geom == NULL)
189	return false;	168	return false;
190		169
191	if (geom[0])	170	if (geom[0])
…		…
284	} /* done parsing ops */	263	} /* done parsing ops */
285		264
286	rxvt_free_strsplit (arr);	265	rxvt_free_strsplit (arr);
287	}	266	}
288		267
		268	new_flags \|= bg_flags & ~BG_GEOMETRY_FLAGS;
		269
289	if (!update)	270	if (!update)
290	{	271	{
291	if (!(geom_flags & XValue))	272	if (!(geom_flags & XValue))
292	x = y = defaultAlign;	273	x = y = defaultAlign;
293	else if (!(geom_flags & YValue))	274	else if (!(geom_flags & YValue))
…		…
297	w = h = defaultScale;	278	w = h = defaultScale;
298	else if (!(geom_flags & HeightValue))	279	else if (!(geom_flags & HeightValue))
299	h = w;	280	h = w;
300	else if (!(geom_flags & WidthValue))	281	else if (!(geom_flags & WidthValue))
301	w = h;	282	w = h;
302
303	geom_flags \|= WidthValue\|HeightValue\|XValue\|YValue;
304	}	283	}
305		284
306	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;	285	min_it (w, 1000);
307	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;	286	min_it (h, 1000);
308	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;	287	clamp_it (x, -100, 200);
309	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;	288	clamp_it (y, -100, 200);
310		289
311	if (new_flags != bg_flags)	290	if (bg_flags != new_flags
		291	\|\| h_scale != w
		292	\|\| v_scale != h
		293	\|\| h_align != x
		294	\|\| v_align != y)
312	{	295	{
313	bg_flags = new_flags;	296	bg_flags = new_flags;
		297	h_scale = w;
		298	v_scale = h;
		299	h_align = x;
		300	v_align = y;
314	changed = true;	301	changed = true;
315	}	302	}
316		303
317	return changed;	304	return changed;
318	}	305	}
…		…
346	{	333	{
347	x = make_align_position (h_align, target_width, w);	334	x = make_align_position (h_align, target_width, w);
348	y = make_align_position (v_align, target_height, h);	335	y = make_align_position (v_align, target_height, h);
349	}	336	}
350		337
351	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
352	if (!(bg_flags & BG_TILE)	338	if (!(bg_flags & BG_TILE)
353	\|\| h_scale \|\| v_scale	339	\|\| h_scale \|\| v_scale
354	\|\| (!(bg_flags & BG_ROOT_ALIGN) && (h_align \|\| v_align))	340	\|\| (!(bg_flags & BG_ROOT_ALIGN) && (h_align \|\| v_align))
355	\|\| w > target_width \|\| h > target_height)	341	\|\| image_width > target_width \|\| image_height > target_height)
356	bg_flags \|= BG_IS_SIZE_SENSITIVE;	342	bg_flags \|= BG_IS_SIZE_SENSITIVE;
357	}
358
359	# ifdef HAVE_AFTERIMAGE
360	bool
361	rxvt_term::render_image (unsigned long tr_flags)
362	{
363	init_asv ();
364
365	ASImage *background = NULL;
366	ARGB32 background_tint = TINT_LEAVE_SAME;
367
368	# ifdef ENABLE_TRANSPARENCY
369	if (tr_flags)
370	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
371
372	if (tr_flags & BG_NEEDS_TINT)
373	{
374	ShadingInfo as_shade;
375	as_shade.shading = shade;
376
377	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
378	if (bg_flags & BG_TINT_SET)
379	tint.get (c);
380	as_shade.tintColor.red = c.r;
381	as_shade.tintColor.green = c.g;
382	as_shade.tintColor.blue = c.b;
383
384	background_tint = shading2tint32 (&as_shade);
385	}
386
387	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
388	{
389	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
390	ASA_XImage,
391	100, ASIMAGE_QUALITY_DEFAULT);
392	if (tmp)
393	{
394	destroy_asimage (&background);
395	background = tmp;
396	}
397	}
398	# endif
399
400	ASImage *result = 0;
401
402	int target_width = szHint.width;
403	int target_height = szHint.height;
404	int new_pmap_width = target_width;
405	int new_pmap_height = target_height;
406
407	int x = 0;
408	int y = 0;
409	int w = 0;
410	int h = 0;
411
412	if (original_asim)
413	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
414
415	if (!original_asim
416	\|\| (!(bg_flags & BG_ROOT_ALIGN)
417	&& (x >= target_width
418	\|\| y >= target_height
419	\|\| x + w <= 0
420	\|\| y + h <= 0)))
421	{
422	if (background)
423	{
424	new_pmap_width = background->width;
425	new_pmap_height = background->height;
426	result = background;
427
428	if (background_tint != TINT_LEAVE_SAME)
429	{
430	ASImage *tmp = tile_asimage (asv, background, 0, 0,
431	target_width, target_height, background_tint,
432	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
433	if (tmp)
434	result = tmp;
435	}
436	}
437	else
438	new_pmap_width = new_pmap_height = 0;
439	}
440	else	343	else
441	{	344	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
442	result = original_asim;
443
444	if (w != original_asim->width
445	\|\| h != original_asim->height)
446	{
447	result = scale_asimage (asv, original_asim,
448	w, h,
449	ASA_XImage,
450	100, ASIMAGE_QUALITY_DEFAULT);
451	}
452
453	if (background == NULL)
454	{
455	if (bg_flags & BG_TILE)
456	{
457	/* if tiling - pixmap has to be sized exactly as the image,
458	but there is no need to make it bigger than the window! */
459	new_pmap_width = min (result->width, target_width);
460	new_pmap_height = min (result->height, target_height);
461
462	/* we also need to tile our image in both directions */
463	ASImage *tmp = tile_asimage (asv, result,
464	(int)result->width - x,
465	(int)result->height - y,
466	new_pmap_width,
467	new_pmap_height,
468	TINT_LEAVE_SAME, ASA_XImage,
469	100, ASIMAGE_QUALITY_DEFAULT);
470	if (tmp)
471	{
472	if (result != original_asim)
473	destroy_asimage (&result);
474
475	result = tmp;
476	}
477	}
478	}
479	else
480	{
481	/* if blending background and image - pixmap has to be sized same as target window */
482	ASImageLayer *layers = create_image_layers (2);
483
484	layers[0].im = background;
485	layers[0].clip_width = target_width;
486	layers[0].clip_height = target_height;
487	layers[0].tint = background_tint;
488	layers[1].im = result;
489
490	if (bg_flags & BG_TILE)
491	{
492	/* tile horizontally */
493	while (x > 0) x -= (int)result->width;
494	layers[1].dst_x = x;
495	layers[1].clip_width = result->width+target_width;
496	}
497	else
498	{
499	/* clip horizontally */
500	layers[1].dst_x = x;
501	layers[1].clip_width = result->width;
502	}
503
504	if (bg_flags & BG_TILE)
505	{
506	while (y > 0) y -= (int)result->height;
507	layers[1].dst_y = y;
508	layers[1].clip_height = result->height + target_height;
509	}
510	else
511	{
512	layers[1].dst_y = y;
513	layers[1].clip_height = result->height;
514	}
515
516	if (rs[Rs_blendtype])
517	{
518	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
519	if (layers[1].merge_scanlines == NULL)
520	layers[1].merge_scanlines = alphablend_scanlines;
521	}
522
523	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
524	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
525
526	if (tmp)
527	{
528	if (result != original_asim)
529	destroy_asimage (&result);
530
531	result = tmp;
532	}
533
534	free (layers);
535	}
536	}
537
538	bool ret = false;
539
540	if (result)
541	{
542	XGCValues gcv;
543	GC gc;
544
545	/* create Pixmap */
546	if (bg_pixmap == None
547	\|\| bg_pmap_width != new_pmap_width
548	\|\| bg_pmap_height != new_pmap_height)
549	{
550	if (bg_pixmap)
551	XFreePixmap (dpy, bg_pixmap);
552	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
553	bg_pmap_width = new_pmap_width;
554	bg_pmap_height = new_pmap_height;
555	}
556	/* fill with background color (if result's not completely overlapping it) */
557	gcv.foreground = pix_colors[Color_bg];
558	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
559
560	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
561	int dst_width = result->width, dst_height = result->height;
562	if (background == NULL)
563	{
564	if (!(bg_flags & BG_TILE))
565	{
566	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
567	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
568	}
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
576	/* put result on pixmap */
577	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
578	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
579
580	if (result != background && result != original_asim)
581	destroy_asimage (&result);
582
583	XFreeGC (dpy, gc);
584
585	ret = true;
586	}
587
588	if (background)
589	destroy_asimage (&background);
590
591	return ret;
592	}	345	}
593	# endif /* HAVE_AFTERIMAGE */
594		346
595	# ifdef HAVE_PIXBUF	347	# ifdef HAVE_PIXBUF
596	bool	348	bool
597	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,	349	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
598	int src_x, int src_y, int dst_x, int dst_y,	350	int src_x, int src_y, int dst_x, int dst_y,
…		…
675	XDestroyImage (ximage);	427	XDestroyImage (ximage);
676	return true;	428	return true;
677	}	429	}
678		430
679	bool	431	bool
680	rxvt_term::render_image (unsigned long tr_flags)	432	rxvt_term::render_image (bool transparent)
681	{	433	{
682	if (!pixbuf)	434	if (!pixbuf)
683	return false;	435	return false;
684		436
685	if (tr_flags	437	if (transparent
686	&& !(bg_flags & BG_HAS_RENDER))	438	&& !(bg_flags & BG_HAS_RENDER))
687	return false;	439	return false;
688		440
689	GdkPixbuf *result;	441	GdkPixbuf *result;
690		442
…		…
730	Pixmap root_pmap;	482	Pixmap root_pmap;
731		483
732	image_width = gdk_pixbuf_get_width (result);	484	image_width = gdk_pixbuf_get_width (result);
733	image_height = gdk_pixbuf_get_height (result);	485	image_height = gdk_pixbuf_get_height (result);
734		486
735	if (tr_flags)	487	if (transparent)
736	{	488	{
737	root_pmap = bg_pixmap;	489	root_pmap = bg_pixmap;
738	bg_pixmap = None;	490	bg_pixmap = None;
739	}	491	}
740	else	492	else
…		…
798	dst_x, dst_y,	550	dst_x, dst_y,
799	dst_width, dst_height);	551	dst_width, dst_height);
800	}	552	}
801		553
802	#if XRENDER	554	#if XRENDER
803	if (tr_flags)	555	if (transparent)
804	{	556	{
805	XRenderPictureAttributes pa;
806
807	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	557	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		558
808	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	559	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);
809		560
810	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
811	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	561	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
812		562
813	pa.repeat = True;	563	Picture mask = create_xrender_mask (dpy, vt, False, False);
814	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
815	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
816	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
817	XFreePixmap (dpy, mask_pmap);
818		564
819	XRenderColor mask_c;	565	XRenderColor mask_c;
820		566
821	mask_c.alpha = 0x8000;	567	mask_c.alpha = 0x8000;
822	mask_c.red = 0;	568	mask_c.red =
823	mask_c.green = 0;	569	mask_c.green =
824	mask_c.blue = 0;	570	mask_c.blue = 0;
825	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);	571	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		572
826	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);	573	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
827		574
828	XRenderFreePicture (dpy, src);	575	XRenderFreePicture (dpy, src);
829	XRenderFreePicture (dpy, dst);	576	XRenderFreePicture (dpy, dst);
830	XRenderFreePicture (dpy, mask);	577	XRenderFreePicture (dpy, mask);
…		…
837	}	584	}
838		585
839	if (result != pixbuf)	586	if (result != pixbuf)
840	g_object_unref (result);	587	g_object_unref (result);
841		588
842	if (tr_flags)	589	if (transparent)
843	XFreePixmap (dpy, root_pmap);	590	XFreePixmap (dpy, root_pmap);
844		591
845	return ret;	592	return ret;
846	}	593	}
847	# endif /* HAVE_PIXBUF */	594	# endif /* HAVE_PIXBUF */
…		…
862	memcpy (f, file, len);	609	memcpy (f, file, len);
863	f[len] = '\0';	610	f[len] = '\0';
864	file = f;	611	file = f;
865	}	612	}
866		613
867	# ifdef HAVE_AFTERIMAGE
868	if (!asimman)
869	asimman = create_generic_imageman (rs[Rs_path]);
870	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
871	if (image)
872	{
873	if (original_asim)
874	safe_asimage_destroy (original_asim);
875	original_asim = image;
876	bg_flags \|= BG_IS_FROM_FILE \| BG_CLIENT_RENDER;
877	ret = true;
878	}
879	# endif
880
881	# ifdef HAVE_PIXBUF	614	# ifdef HAVE_PIXBUF
882	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	615	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
883	if (image)	616	if (image)
884	{	617	{
885	if (pixbuf)	618	if (pixbuf)
…		…
942	{	675	{
943	changed = true;	676	changed = true;
944	v_blurRadius = vr;	677	v_blurRadius = vr;
945	}	678	}
946		679
947	if (v_blurRadius == 0 && h_blurRadius == 0)	680	if (h_blurRadius && v_blurRadius)
		681	bg_flags \|= BG_NEEDS_BLUR;
		682	else
948	bg_flags &= ~BG_NEEDS_BLUR;	683	bg_flags &= ~BG_NEEDS_BLUR;
949	else
950	bg_flags \|= BG_NEEDS_BLUR;
951		684
952	return changed;	685	return changed;
953	}	686	}
954		687
955	void	688	void
956	rxvt_term::set_tint_shade_flags ()	689	rxvt_term::set_tint_shade_flags ()
957	{	690	{
		691	if (shade != 100 \|\| (bg_flags & BG_TINT_SET))
		692	bg_flags \|= BG_NEEDS_TINT;
		693	else
		694	bg_flags &= ~BG_NEEDS_TINT;
		695	}
		696
		697	bool
		698	rxvt_term::bg_set_tint (rxvt_color &new_tint)
		699	{
		700	if (!(bg_flags & BG_TINT_SET) \|\| tint != new_tint)
		701	{
		702	tint = new_tint;
		703	bg_flags \|= BG_TINT_SET;
		704
958	rgba c;	705	rgba c;
959	bool has_shade = shade != 100;
960
961	bg_flags &= ~BG_TINT_FLAGS;
962
963	if (bg_flags & BG_TINT_SET)
964	{
965	tint.get (c);	706	tint.get (c);
966	if (!has_shade
967	&& (c.r <= 0x00ff \|\| c.r >= 0xff00)	707	if ((c.r <= 0x00ff \|\| c.r >= 0xff00)
968	&& (c.g <= 0x00ff \|\| c.g >= 0xff00)	708	&& (c.g <= 0x00ff \|\| c.g >= 0xff00)
969	&& (c.b <= 0x00ff \|\| c.b >= 0xff00))	709	&& (c.b <= 0x00ff \|\| c.b >= 0xff00))
970	bg_flags \|= BG_TINT_BITAND;	710	bg_flags \|= BG_TINT_BITAND;
971	}	711	else
972
973	if (has_shade \|\| (bg_flags & BG_TINT_SET))
974	bg_flags \|= BG_NEEDS_TINT;
975	}
976
977	bool
978	rxvt_term::bg_set_tint (rxvt_color &new_tint)
979	{
980	if (!(bg_flags & BG_TINT_SET) \|\| tint != new_tint)
981	{
982	tint = new_tint;
983	bg_flags \|= BG_TINT_SET;	712	bg_flags &= ~BG_TINT_BITAND;
		713
984	set_tint_shade_flags ();	714	set_tint_shade_flags ();
985	return true;	715	return true;
986	}	716	}
987		717
988	return false;	718	return false;
989	}	719	}
990		720
991	bool	721	bool
992	rxvt_term::bg_set_shade (const char *shade_str)	722	rxvt_term::bg_set_shade (const char *shade_str)
993	{	723	{
994	int new_shade = (shade_str) ? atoi (shade_str) : 100;	724	int new_shade = atoi (shade_str);
995		725
996	clamp_it (new_shade, -100, 200);	726	clamp_it (new_shade, -100, 200);
997	if (new_shade < 0)	727	if (new_shade < 0)
998	new_shade = 200 - (100 + new_shade);	728	new_shade = 200 - (100 + new_shade);
999		729
…		…
1029	params[i+2] = XDoubleToFixed (kernel[i] / sum);	759	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1030	}	760	}
1031	#endif	761	#endif
1032		762
1033	bool	763	bool
1034	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	764	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
1035	{	765	{
1036	bool ret = false;	766	bool ret = false;
1037	#if XRENDER	767	#if XRENDER
1038	if (!(bg_flags & BG_HAS_RENDER_CONV))	768	if (!(bg_flags & BG_HAS_RENDER_CONV))
1039	return false;	769	return false;
…		…
1043	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	773	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));
1044		774
1045	XRenderPictureAttributes pa;	775	XRenderPictureAttributes pa;
1046	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	776	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1047		777
		778	pa.repeat = RepeatPad;
1048	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	779	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		780	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
1049	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	781	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		782	XFreePixmap (dpy, tmp);
1050		783
1051	if (kernel && params)	784	if (kernel && params)
1052	{	785	{
1053	if (h_blurRadius)
1054	{
1055	size = h_blurRadius * 2 + 1;	786	size = h_blurRadius * 2 + 1;
1056	get_gaussian_kernel (h_blurRadius, size, kernel, params);	787	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1057		788
1058	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	789	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1059	XRenderComposite (dpy,	790	XRenderComposite (dpy,
1060	PictOpSrc,	791	PictOpSrc,
1061	src,	792	src,
1062	None,	793	None,
1063	dst,	794	dst,
1064	0, 0,	795	0, 0,
1065	0, 0,	796	0, 0,
1066	0, 0,	797	0, 0,
1067	width, height);	798	width, height);
1068	}
1069		799
1070	if (v_blurRadius)	800	::swap (src, dst);
1071	{	801
1072	size = v_blurRadius * 2 + 1;	802	size = v_blurRadius * 2 + 1;
1073	get_gaussian_kernel (v_blurRadius, size, kernel, params);	803	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1074	::swap (params[0], params[1]);	804	::swap (params[0], params[1]);
1075		805
1076	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	806	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1077	XRenderComposite (dpy,	807	XRenderComposite (dpy,
1078	PictOpSrc,	808	PictOpSrc,
1079	src,	809	src,
1080	None,	810	None,
1081	dst,	811	dst,
1082	0, 0,	812	0, 0,
1083	0, 0,	813	0, 0,
1084	0, 0,	814	0, 0,
1085	width, height);	815	width, height);
1086	}
1087		816
1088	ret = true;	817	ret = true;
1089	}	818	}
1090		819
1091	free (kernel);	820	free (kernel);
…		…
1099	bool	828	bool
1100	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)	829	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1101	{	830	{
1102	bool ret = false;	831	bool ret = false;
1103		832
1104	if (bg_flags & BG_TINT_BITAND)	833	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
1105	{	834	{
1106	XGCValues gcv;	835	XGCValues gcv;
1107	GC gc;	836	GC gc;
1108		837
1109	/* In this case we can tint image server-side getting significant	838	/* In this case we can tint image server-side getting significant
…		…
1139	c.r = c.r * (200 - shade) / 100;	868	c.r = c.r * (200 - shade) / 100;
1140	c.g = c.g * (200 - shade) / 100;	869	c.g = c.g * (200 - shade) / 100;
1141	c.b = c.b * (200 - shade) / 100;	870	c.b = c.b * (200 - shade) / 100;
1142	}	871	}
1143		872
1144	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1145	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	873	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1146	XRenderPictureAttributes pa;
1147		874
1148	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);	875	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1149		876
1150	pa.repeat = True;	877	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1151		878
1152	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);	879	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1153	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1154	XFreePixmap (dpy, overlay_pmap);
1155
1156	pa.component_alpha = True;
1157	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1158	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat \| CPComponentAlpha, &pa);
1159	XFreePixmap (dpy, mask_pmap);
1160		880
1161	XRenderColor mask_c;	881	XRenderColor mask_c;
1162		882
1163	mask_c.alpha = 0xffff;	883	mask_c.alpha = 0xffff;
1164	mask_c.red =	884	mask_c.red =
…		…
1169	mask_c.alpha = 0;	889	mask_c.alpha = 0;
1170	mask_c.red = 0xffff - c.r;	890	mask_c.red = 0xffff - c.r;
1171	mask_c.green = 0xffff - c.g;	891	mask_c.green = 0xffff - c.g;
1172	mask_c.blue = 0xffff - c.b;	892	mask_c.blue = 0xffff - c.b;
1173	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);	893	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		894
1174	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);	895	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1175		896
1176	if (shade > 100)	897	if (shade > 100)
1177	{	898	{
1178	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1179	mask_c.alpha = 0;	899	mask_c.alpha = 0;
		900	mask_c.red =
		901	mask_c.green =
		902	mask_c.blue = 0xffff * (shade - 100) / 100;
1180	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);	903	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1181		904
1182	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);	905	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1183	}	906	}
1184		907
…		…
1196	/*	919	/*
1197	* Builds a pixmap of the same size as the terminal window that contains	920	* Builds a pixmap of the same size as the terminal window that contains
1198	* the tiled portion of the root pixmap that is supposed to be covered by	921	* the tiled portion of the root pixmap that is supposed to be covered by
1199	* our window.	922	* our window.
1200	*/	923	*/
1201	unsigned long	924	bool
1202	rxvt_term::make_transparency_pixmap ()	925	rxvt_term::make_transparency_pixmap ()
1203	{	926	{
1204	unsigned long result = 0;	927	bool ret = false;
1205		928
1206	/* root dimensions may change from call to call - but Display structure should	929	/* root dimensions may change from call to call - but Display structure should
1207	* be always up-to-date, so let's use it :	930	* be always up-to-date, so let's use it :
1208	*/	931	*/
1209	int screen = display->screen;	932	int screen = display->screen;
…		…
1247	#if XRENDER	970	#if XRENDER
1248	if (bg_flags & BG_HAS_RENDER)	971	if (bg_flags & BG_HAS_RENDER)
1249	{	972	{
1250	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);	973	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1251		974
1252	XRenderPictureAttributes pa;
1253
1254	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));	975	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1255	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);	976	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1256		977
1257	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	978	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1258	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	979	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1259		980
1260	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	981	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
1261		982
1262	XRenderFreePicture (dpy, src);	983	XRenderFreePicture (dpy, src);
1263	XRenderFreePicture (dpy, dst);	984	XRenderFreePicture (dpy, dst);
…		…
1292	gc = XCreateGC (dpy, vt, GCFillStyle \| GCTile \| GCTileStipXOrigin \| GCTileStipYOrigin, &gcv);	1013	gc = XCreateGC (dpy, vt, GCFillStyle \| GCTile \| GCTileStipXOrigin \| GCTileStipYOrigin, &gcv);
1293		1014
1294	if (gc)	1015	if (gc)
1295	{	1016	{
1296	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);	1017	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1297	result \|= BG_IS_VALID \| (bg_flags & BG_EFFECTS_FLAGS);	1018	ret = true;
		1019	unsigned long tr_flags = bg_flags & BG_EFFECTS_FLAGS;
		1020
		1021	if (!(bg_flags & BG_CLIENT_RENDER))
		1022	{
		1023	if (bg_flags & BG_NEEDS_BLUR)
		1024	{
		1025	if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
		1026	tr_flags &= ~BG_NEEDS_BLUR;
		1027	}
		1028	if (bg_flags & BG_NEEDS_TINT)
		1029	{
		1030	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
		1031	tr_flags &= ~BG_NEEDS_TINT;
		1032	}
		1033	if (tr_flags & BG_NEEDS_TINT)
		1034	{
		1035	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1036	if (ximage)
		1037	{
		1038	/* our own client-side tinting */
		1039	tint_ximage (DefaultVisual (dpy, display->screen), ximage);
		1040
		1041	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1042	XDestroyImage (ximage);
		1043	}
		1044	}
		1045	} /* server side rendering completed */
		1046
1298	XFreeGC (dpy, gc);	1047	XFreeGC (dpy, gc);
1299
1300	if (!(bg_flags & BG_CLIENT_RENDER))
1301	{
1302	if (bg_flags & BG_NEEDS_BLUR)
1303	{
1304	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1305	result &= ~BG_NEEDS_BLUR;
1306	}
1307	if (bg_flags & BG_NEEDS_TINT)
1308	{
1309	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1310	result &= ~BG_NEEDS_TINT;
1311	}
1312	} /* server side rendering completed */
1313	}	1048	}
1314		1049
1315	if (recoded_root_pmap != root_pixmap)	1050	if (recoded_root_pmap != root_pixmap)
1316	XFreePixmap (dpy, recoded_root_pmap);	1051	XFreePixmap (dpy, recoded_root_pmap);
1317		1052
1318	return result;	1053	return ret;
1319	}	1054	}
1320		1055
1321	void	1056	void
1322	rxvt_term::bg_set_root_pixmap ()	1057	rxvt_term::bg_set_root_pixmap ()
1323	{	1058	{
…		…
1327		1062
1328	root_pixmap = new_root_pixmap;	1063	root_pixmap = new_root_pixmap;
1329	}	1064	}
1330	# endif /* ENABLE_TRANSPARENCY */	1065	# endif /* ENABLE_TRANSPARENCY */
1331		1066
1332	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1333	static void shade_ximage (Visual visual, XImage ximage, int shade, const rgba &c);
1334	# endif
1335
1336	bool	1067	bool
1337	rxvt_term::bg_render ()	1068	rxvt_term::bg_render ()
1338	{	1069	{
1339	unsigned long tr_flags = 0;	1070	bool transparent = false;
1340		1071
1341	bg_invalidate ();	1072	bg_invalidate ();
1342	# ifdef ENABLE_TRANSPARENCY	1073	# ifdef ENABLE_TRANSPARENCY
1343	if (bg_flags & BG_IS_TRANSPARENT)	1074	if (bg_flags & BG_IS_TRANSPARENT)
1344	{	1075	{
1345	/* we need to re-generate transparency pixmap in that case ! */	1076	/* we need to re-generate transparency pixmap in that case ! */
1346	tr_flags = make_transparency_pixmap ();	1077	transparent = make_transparency_pixmap ();
1347	if (tr_flags == 0)	1078	if (transparent)
1348	return false;
1349	bg_flags \|= BG_IS_VALID;	1079	bg_flags \|= BG_IS_VALID;
1350	}	1080	}
1351	# endif	1081	# endif
1352		1082
1353	# ifdef BG_IMAGE_FROM_FILE	1083	# ifdef BG_IMAGE_FROM_FILE
1354	if ((bg_flags & BG_IS_FROM_FILE)	1084	if (bg_flags & BG_IS_FROM_FILE)
1355	\|\| (tr_flags & BG_EFFECTS_FLAGS))
1356	{	1085	{
1357	if (render_image (tr_flags))	1086	if (render_image (transparent))
1358	bg_flags \|= BG_IS_VALID;	1087	bg_flags \|= BG_IS_VALID;
1359	}
1360	# endif
1361
1362	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1363	XImage *result = NULL;
1364
1365	if (tr_flags & BG_NEEDS_TINT)
1366	{
1367	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1368	}
1369
1370	if (result)
1371	{
1372	/* our own client-side tinting */
1373	//if (tr_flags & BG_NEEDS_TINT)
1374	if (1)
1375	{
1376	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1377	if (bg_flags & BG_TINT_SET)
1378	tint.get (c);
1379	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1380	}
1381
1382	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1383
1384	if (gc)
1385	{
1386	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1387
1388	XFreeGC (dpy, gc);
1389	}
1390
1391	XDestroyImage (result);
1392	}	1088	}
1393	# endif	1089	# endif
1394		1090
1395	if (!(bg_flags & BG_IS_VALID))	1091	if (!(bg_flags & BG_IS_VALID))
1396	{	1092	{
…		…
1433	#endif	1129	#endif
1434	}	1130	}
1435		1131
1436	#endif /* HAVE_BG_PIXMAP */	1132	#endif /* HAVE_BG_PIXMAP */
1437		1133
1438	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	1134	#ifdef ENABLE_TRANSPARENCY
1439	/* based on code from aterm-0.4.2 */	1135	/* based on code from aterm-0.4.2 */
1440		1136
1441	static inline void	1137	static inline void
1442	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)	1138	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1443	{	1139	{
…		…
1448	tmp += (mask >> sh) * low;	1144	tmp += (mask >> sh) * low;
1449	lookup[i] = (tmp / 0xffff) << sh;	1145	lookup[i] = (tmp / 0xffff) << sh;
1450	}	1146	}
1451	}	1147	}
1452		1148
1453	static void	1149	void
1454	shade_ximage (Visual visual, XImage ximage, int shade, const rgba &c)	1150	rxvt_term::tint_ximage (Visual visual, XImage ximage)
1455	{	1151	{
1456	int sh_r, sh_g, sh_b;	1152	int sh_r, sh_g, sh_b;
1457	uint32_t mask_r, mask_g, mask_b;	1153	uint32_t mask_r, mask_g, mask_b;
1458	uint32_t lookup, lookup_r, lookup_g, lookup_b;	1154	uint32_t lookup, lookup_r, lookup_g, lookup_b;
1459	unsigned short low;	1155	unsigned short low;
1460	rgba high;
1461	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;	1156	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1462		1157
1463	if (visual->c_class != TrueColor \|\| ximage->format != ZPixmap) return;	1158	if (visual->c_class != TrueColor \|\| ximage->format != ZPixmap) return;
1464		1159
1465	/* for convenience */	1160	/* for convenience */
…		…
1524	break;	1219	break;
1525	default:	1220	default:
1526	return; /* we do not support this color depth */	1221	return; /* we do not support this color depth */
1527	}	1222	}
1528		1223
		1224	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		1225
		1226	if (bg_flags & BG_TINT_SET)
		1227	tint.get (c);
		1228
1529	/* prepare limits for color transformation (each channel is handled separately) */	1229	/* prepare limits for color transformation (each channel is handled separately) */
1530	if (shade > 100)	1230	if (shade > 100)
1531	{	1231	{
1532	shade = 200 - shade;	1232	c.r = c.r * (200 - shade) / 100;
		1233	c.g = c.g * (200 - shade) / 100;
		1234	c.b = c.b * (200 - shade) / 100;
1533		1235
1534	high.r = c.r * shade / 100;
1535	high.g = c.g * shade / 100;
1536	high.b = c.b * shade / 100;
1537
1538	low = 0xffff * (100 - shade) / 100;	1236	low = 0xffff * (shade - 100) / 100;
1539	}	1237	}
1540	else	1238	else
1541	{	1239	{
1542	high.r = c.r * shade / 100;	1240	c.r = c.r * shade / 100;
1543	high.g = c.g * shade / 100;	1241	c.g = c.g * shade / 100;
1544	high.b = c.b * shade / 100;	1242	c.b = c.b * shade / 100;
1545		1243
1546	low = 0;	1244	low = 0;
1547	}	1245	}
1548		1246
1549	/* fill our lookup tables */	1247	/* fill our lookup tables */
1550	fill_lut (lookup_r, mask_r, sh_r, low, high.r);	1248	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1551	fill_lut (lookup_g, mask_g, sh_g, low, high.g);	1249	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1552	fill_lut (lookup_b, mask_b, sh_b, low, high.b);	1250	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1553		1251
1554	/* apply table to input image (replacing colors by newly calculated ones) */	1252	/* apply table to input image (replacing colors by newly calculated ones) */
1555	if (ximage->bits_per_pixel == 32	1253	if (ximage->bits_per_pixel == 32
1556	&& (ximage->depth == 24 \|\| ximage->depth == 32)	1254	&& (ximage->depth == 24 \|\| ximage->depth == 32)
1557	&& ximage->byte_order == host_byte_order)	1255	&& ximage->byte_order == host_byte_order)
…		…
1587	}	1285	}
1588	}	1286	}
1589		1287
1590	free (lookup);	1288	free (lookup);
1591	}	1289	}
1592	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1290	#endif /* ENABLE_TRANSPARENCY */

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Comparing rxvt-unicode/src/background.C (file contents): Revision 1.182 by sf-exg, Sun Dec 25 17:01:21 2011 UTC vs. Revision 1.205 by sf-exg, Wed Apr 11 10:06:45 2012 UTC

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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.182 by sf-exg, Sun Dec 25 17:01:21 2011 UTC vs.
Revision 1.205 by sf-exg, Wed Apr 11 10:06:45 2012 UTC