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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.205 by sf-exg, Wed Apr 11 10:06:45 2012 UTC vs.
Revision 1.252 by sf-exg, Sun Dec 30 15:38:03 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>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
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
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		29
60	void	30	void
61	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
62	{	32	{
63	#ifdef HAVE_PIXBUF	33	# if BG_IMAGE_FROM_ROOT
64	if (pixbuf)	34	delete root_img;
65	g_object_unref (pixbuf);	35	root_img = 0;
66	#endif	36	# endif
67		37
68	if (bg_pixmap)	38	# if BG_IMAGE_FROM_FILE
69	XFreePixmap (dpy, bg_pixmap);	39	fimage.destroy ();
		40	# endif
70	}	41	}
71		42
72	bool	43	bool
73	rxvt_term::bg_set_position (int x, int y)	44	rxvt_term::bg_window_size_sensitive ()
74	{	45	{
		46	# if BG_IMAGE_FROM_ROOT
		47	if (option (Opt_transparent))
		48	return true;
		49	# endif
75		50
76	if (target_x != x	51	# if BG_IMAGE_FROM_FILE
77	|| target_y != y)	52	if (fimage.img)
78	{	53	{
79	target_x = x;	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
80	target_y = y;	55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
81	return true;	57	return true;
82	}	58	}
		59	# endif
		60
83	return false;	61	return false;
84	}	62	}
85		63
86	bool	64	bool
87	rxvt_term::bg_window_size_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
88	{	66	{
89	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
90	if (bg_flags & BG_IS_TRANSPARENT)	68	if (option (Opt_transparent))
91	return true;	69	return true;
92	# endif	70	# endif
93		71
94	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
95	if (bg_flags & BG_IS_FROM_FILE)	73	if (fimage.img)
96	{	74	{
97	if (bg_flags & BG_IS_SIZE_SENSITIVE)	75	if (fimage.flags & IM_ROOT_ALIGN)
98	return true;	76	return true;
99	}	77	}
100	# endif	78	# endif
101		79
102	return false;	80	return false;
103	}	81	}
104		82
105	bool
106	rxvt_term::bg_window_position_sensitive ()
107	{
108	# ifdef ENABLE_TRANSPARENCY
109	if (bg_flags & BG_IS_TRANSPARENT)
110	return true;
111	# endif
112
113	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
114	if (bg_flags & BG_IS_FROM_FILE)
115	{
116	if (bg_flags & BG_ROOT_ALIGN)
117	return true;
118	}
119	# endif
120
121	return false;
122	}
123
124	# ifdef BG_IMAGE_FROM_FILE
125	static inline int	84	static inline int
126	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
127	{	86	{
128	int diff = window_size - image_size;
129	int smaller = min (image_size, window_size);
130
131	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
132	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
133	else if (align > 100)	89	else if (align > 100)
134	return (align - 100) * smaller / 100 + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
135	else	91	else
136	return (align + 100) * smaller / 100 - image_size;	92	return lerp (-image_size, 0, align + 100);
137	}	93	}
138		94
139	static inline int	95	static void
140	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	96	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
141	{	97	{
142	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
143	dst_pos = pos;
144	dst_size = size;
145	if (pos < 0)
146	{
147	src_pos = -pos;
148	dst_pos = 0;
149	dst_size += pos;
150	}	99	{
151		100	flags = IM_TILE;
152	min_it (dst_size, target_size - dst_pos);	101	w = h = noScale;
153	return src_pos;	102	x = y = 0;
		103	}
		104	else if (!strcasecmp (style, "aspect-stretched"))
		105	{
		106	flags = IM_KEEP_ASPECT;
		107	w = h = windowScale;
		108	x = y = centerAlign;
		109	}
		110	else if (!strcasecmp (style, "stretched"))
		111	{
		112	flags = 0;
		113	w = h = windowScale;
		114	x = y = centerAlign;
		115	}
		116	else if (!strcasecmp (style, "centered"))
		117	{
		118	flags = 0;
		119	w = h = noScale;
		120	x = y = centerAlign;
		121	}
		122	else if (!strcasecmp (style, "root-tiled"))
		123	{
		124	flags = IM_TILE|IM_ROOT_ALIGN;
		125	w = h = noScale;
		126	x = y = 0;
		127	}
154	}	128	}
155		129
156	bool	130	bool
157	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
158	{	132	{
159	bool changed = false;	133	bool changed = false;
160	int geom_flags = 0;	134	int geom_flags = 0;
161	int x = h_align;	135	int x = h_align;
162	int y = v_align;	136	int y = v_align;
163	unsigned int w = h_scale;	137	unsigned int w = h_scale;
164	unsigned int h = v_scale;	138	unsigned int h = v_scale;
165	unsigned long new_flags = 0;	139	uint8_t new_flags = 0;
166		140
167	if (geom == NULL)	141	if (geom == NULL)
168	return false;	142	return false;
169		143
170	if (geom[0])	144	if (geom[0])
171	{	145	{
172	char **arr = rxvt_strsplit (':', geom);	146	char **arr = rxvt_strsplit (':', geom);
173		147
174	for (int i = 0; arr[i]; i++)	148	for (int i = 0; arr[i]; i++)
175	{	149	{
176	if (!strcasecmp (arr[i], "style=tiled"))	150	if (!strncasecmp (arr[i], "style=", 6))
177	{	151	{
178	new_flags = BG_TILE;	152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
179	w = h = noScale;
180	x = y = 0;
181	geom_flags = WidthValue|HeightValue|XValue|YValue;	153	geom_flags = WidthValue|HeightValue|XValue|YValue;
182	}	154	}
183	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
184	{
185	new_flags = BG_KEEP_ASPECT;
186	w = h = windowScale;
187	x = y = centerAlign;
188	geom_flags = WidthValue|HeightValue|XValue|YValue;
189	}
190	else if (!strcasecmp (arr[i], "style=stretched"))
191	{
192	new_flags = 0;
193	w = h = windowScale;
194	geom_flags = WidthValue|HeightValue;
195	}
196	else if (!strcasecmp (arr[i], "style=centered"))
197	{
198	new_flags = 0;
199	w = h = noScale;
200	x = y = centerAlign;
201	geom_flags = WidthValue|HeightValue|XValue|YValue;
202	}
203	else if (!strcasecmp (arr[i], "style=root-tiled"))
204	{
205	new_flags = BG_TILE|BG_ROOT_ALIGN;
206	w = h = noScale;
207	geom_flags = WidthValue|HeightValue;
208	}
209	else if (!strcasecmp (arr[i], "op=tile"))	155	else if (!strcasecmp (arr[i], "op=tile"))
210	new_flags |= BG_TILE;	156	new_flags |= IM_TILE;
211	else if (!strcasecmp (arr[i], "op=keep-aspect"))	157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
212	new_flags |= BG_KEEP_ASPECT;	158	new_flags |= IM_KEEP_ASPECT;
213	else if (!strcasecmp (arr[i], "op=root-align"))	159	else if (!strcasecmp (arr[i], "op=root-align"))
214	new_flags |= BG_ROOT_ALIGN;	160	new_flags |= IM_ROOT_ALIGN;
215		161
216	// deprecated	162	// deprecated
217	else if (!strcasecmp (arr[i], "tile"))	163	else if (!strcasecmp (arr[i], "tile"))
218	{	164	{
219	new_flags |= BG_TILE;	165	new_flags |= IM_TILE;
220	w = h = noScale;	166	w = h = noScale;
221	geom_flags |= WidthValue|HeightValue;	167	geom_flags |= WidthValue|HeightValue;
222	}	168	}
223	else if (!strcasecmp (arr[i], "propscale"))	169	else if (!strcasecmp (arr[i], "propscale"))
224	{	170	{
225	new_flags |= BG_KEEP_ASPECT;	171	new_flags |= IM_KEEP_ASPECT;
226	w = h = windowScale;	172	w = h = windowScale;
227	geom_flags |= WidthValue|HeightValue;	173	geom_flags |= WidthValue|HeightValue;
228	}	174	}
229	else if (!strcasecmp (arr[i], "hscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
230	{	176	{
231	new_flags |= BG_TILE;	177	new_flags |= IM_TILE;
232	w = windowScale;	178	w = windowScale;
233	h = noScale;	179	h = noScale;
234	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
235	}	181	}
236	else if (!strcasecmp (arr[i], "vscale"))	182	else if (!strcasecmp (arr[i], "vscale"))
237	{	183	{
238	new_flags |= BG_TILE;	184	new_flags |= IM_TILE;
239	h = windowScale;	185	h = windowScale;
240	w = noScale;	186	w = noScale;
241	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
242	}	188	}
243	else if (!strcasecmp (arr[i], "scale"))	189	else if (!strcasecmp (arr[i], "scale"))
…		…
251	x = y = centerAlign;	197	x = y = centerAlign;
252	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
253	}	199	}
254	else if (!strcasecmp (arr[i], "root"))	200	else if (!strcasecmp (arr[i], "root"))
255	{	201	{
256	new_flags |= BG_TILE|BG_ROOT_ALIGN;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
257	w = h = noScale;	203	w = h = noScale;
258	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
259	}	205	}
260		206
261	else	207	else
…		…
263	} /* done parsing ops */	209	} /* done parsing ops */
264		210
265	rxvt_free_strsplit (arr);	211	rxvt_free_strsplit (arr);
266	}	212	}
267		213
268	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;	214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
269		215
270	if (!update)	216	if (!update)
271	{	217	{
272	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
273	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
280	h = w;	226	h = w;
281	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
282	w = h;	228	w = h;
283	}	229	}
284		230
285	min_it (w, 1000);
286	min_it (h, 1000);
287	clamp_it (x, -100, 200);	231	clamp_it (x, -100, 200);
288	clamp_it (y, -100, 200);	232	clamp_it (y, -100, 200);
289		233
290	if (bg_flags != new_flags	234	if (flags != new_flags
291	|| h_scale != w	235	|| h_scale != w
292	|| v_scale != h	236	|| v_scale != h
293	|| h_align != x	237	|| h_align != x
294	|| v_align != y)	238	|| v_align != y)
295	{	239	{
296	bg_flags = new_flags;	240	flags = new_flags;
297	h_scale = w;	241	h_scale = w;
298	v_scale = h;	242	v_scale = h;
299	h_align = x;	243	h_align = x;
300	v_align = y;	244	v_align = y;
301	changed = true;	245	changed = true;
302	}	246	}
303		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
304	return changed;	253	return changed;
305	}	254	}
306		255
307	void	256	void
308	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	257	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
309	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
310	int target_width = szHint.width;	261	int parent_width = szHint.width;
311	int target_height = szHint.height;	262	int parent_height = szHint.height;
		263	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		264	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
312		265
313	w = h_scale * target_width / 100;	266	w = h_scale * parent_width / 100;
314	h = v_scale * target_height / 100;	267	h = v_scale * parent_height / 100;
315		268
316	if (bg_flags & BG_KEEP_ASPECT)	269	if (image.flags & IM_KEEP_ASPECT)
317	{	270	{
318	float scale = (float)w / image_width;	271	float scale = (float)w / image_width;
319	min_it (scale, (float)h / image_height);	272	min_it (scale, (float)h / image_height);
320	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
321	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
322	}	275	}
323		276
324	if (!w) w = image_width;	277	if (!w) w = image_width;
325	if (!h) h = image_height;	278	if (!h) h = image_height;
326		279
327	if (bg_flags & BG_ROOT_ALIGN)	280	if (image.flags & IM_ROOT_ALIGN)
328	{	281	{
329	x = -target_x;	282	x = -parent_x;
330	y = -target_y;	283	y = -parent_y;
331	}	284	}
332	else	285	else
333	{	286	{
334	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
335	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
336	}
337
338	if (!(bg_flags & BG_TILE)
339	|| h_scale || v_scale
340	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
341	|| image_width > target_width || image_height > target_height)
342	bg_flags |= BG_IS_SIZE_SENSITIVE;
343	else
344	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
345	}
346
347	# ifdef HAVE_PIXBUF
348	bool
349	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
350	int src_x, int src_y, int dst_x, int dst_y,
351	unsigned int width, unsigned int height)
352	{
353	XImage *ximage;
354	char *data, *line;
355	int bytes_per_pixel;
356	int width_r, width_g, width_b;
357	int sh_r, sh_g, sh_b;
358	int rowstride;
359	int channels;
360	unsigned char *row;
361
362	if (visual->c_class != TrueColor)
363	return false;
364
365	if (depth == 24 || depth == 32)
366	bytes_per_pixel = 4;
367	else if (depth == 15 || depth == 16)
368	bytes_per_pixel = 2;
369	else
370	return false;
371
372	width_r = ecb_popcount32 (visual->red_mask);
373	width_g = ecb_popcount32 (visual->green_mask);
374	width_b = ecb_popcount32 (visual->blue_mask);
375
376	if (width_r > 8 || width_g > 8 || width_b > 8)
377	return false;
378
379	sh_r = ecb_ctz32 (visual->red_mask);
380	sh_g = ecb_ctz32 (visual->green_mask);
381	sh_b = ecb_ctz32 (visual->blue_mask);
382
383	if (width > INT_MAX / height / bytes_per_pixel)
384	return false;
385
386	data = (char *)malloc (width * height * bytes_per_pixel);
387	if (!data)
388	return false;
389
390	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
391	width, height, bytes_per_pixel * 8, 0);
392	if (!ximage)
393	{	289	}
394	free (data);
395	return false;
396	}
397
398	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
399
400	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
401	channels = gdk_pixbuf_get_n_channels (pixbuf);
402	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
403	line = data;
404
405	for (int y = 0; y < height; y++)
406	{
407	for (int x = 0; x < width; x++)
408	{
409	unsigned char *pixel = row + x * channels;
410	uint32_t value;
411
412	value = ((pixel[0] >> (8 - width_r)) << sh_r)
413	| ((pixel[1] >> (8 - width_g)) << sh_g)
414	| ((pixel[2] >> (8 - width_b)) << sh_b);
415
416	if (bytes_per_pixel == 4)
417	((uint32_t *)line)[x] = value;
418	else
419	((uint16_t *)line)[x] = value;
420	}
421
422	row += rowstride;
423	line += ximage->bytes_per_line;
424	}
425
426	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
427	XDestroyImage (ximage);
428	return true;
429	}	290	}
430		291
431	bool	292	bool
432	rxvt_term::render_image (bool transparent)	293	rxvt_term::render_image (rxvt_image &image)
433	{	294	{
434	if (!pixbuf)
435	return false;
436
437	if (transparent
438	&& !(bg_flags & BG_HAS_RENDER))
439	return false;
440
441	GdkPixbuf *result;
442
443	int image_width = gdk_pixbuf_get_width (pixbuf);
444	int image_height = gdk_pixbuf_get_height (pixbuf);
445
446	int target_width = szHint.width;	295	int parent_width = szHint.width;
447	int target_height = szHint.height;	296	int parent_height = szHint.height;
448	int new_pmap_width = target_width;
449	int new_pmap_height = target_height;
450		297
451	int x = 0;	298	int x = 0;
452	int y = 0;	299	int y = 0;
453	int w = 0;	300	int w = 0;
454	int h = 0;	301	int h = 0;
455		302
456	get_image_geometry (image_width, image_height, w, h, x, y);	303	get_image_geometry (image, w, h, x, y);
457		304
458	if (!(bg_flags & BG_ROOT_ALIGN)	305	if (!(image.flags & IM_ROOT_ALIGN)
459	&& (x >= target_width	306	&& (x >= parent_width
460	|| y >= target_height	307	|| y >= parent_height
461	|| x + w <= 0	308	|| x + w <= 0
462	|| y + h <= 0))	309	|| y + h <= 0))
463	return false;	310	return false;
464		311
465	result = pixbuf;	312	rxvt_img *img = image.img->scale (w, h);
466		313
467	if (w != image_width	314	if (image.flags & IM_TILE)
468	|| h != image_height)	315	img->repeat_mode (RepeatNormal);
469	{
470	result = gdk_pixbuf_scale_simple (pixbuf,
471	w, h,
472	GDK_INTERP_BILINEAR);
473	}
474
475	if (!result)
476	return false;
477
478	bool ret = false;
479
480	XGCValues gcv;
481	GC gc;
482	Pixmap root_pmap;
483
484	image_width = gdk_pixbuf_get_width (result);
485	image_height = gdk_pixbuf_get_height (result);
486
487	if (transparent)
488	{
489	root_pmap = bg_pixmap;
490	bg_pixmap = None;
491	}
492	else	316	else
493	{	317	img->repeat_mode (RepeatNone);
494	if (bg_flags & BG_TILE)	318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
495	{
496	new_pmap_width = min (image_width, target_width);
497	new_pmap_height = min (image_height, target_height);
498	}
499	}
500		319
501	if (bg_pixmap == None	320	if (bg_img)
502	|| bg_pmap_width != new_pmap_width	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
503	|| bg_pmap_height != new_pmap_height)
504	{
505	if (bg_pixmap)
506	XFreePixmap (dpy, bg_pixmap);
507	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
508	bg_pmap_width = new_pmap_width;
509	bg_pmap_height = new_pmap_height;
510	}
511		322
512	gcv.foreground = pix_colors[Color_bg];
513	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
514
515	if (gc)
516	{
517	if (bg_flags & BG_TILE)
518	{
519	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
520	pixbuf_to_pixmap (result, tile, gc,
521	0, 0,
522	0, 0,
523	image_width, image_height);
524
525	gcv.tile = tile;
526	gcv.fill_style = FillTiled;
527	gcv.ts_x_origin = x;
528	gcv.ts_y_origin = y;
529	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
530
531	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
532	XFreePixmap (dpy, tile);
533	}
534	else
535	{
536	int src_x, src_y, dst_x, dst_y;
537	int dst_width, dst_height;
538
539	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
540	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
541
542	if (dst_x > 0 || dst_y > 0
543	|| dst_x + dst_width < new_pmap_width
544	|| dst_y + dst_height < new_pmap_height)
545	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
546
547	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
548	pixbuf_to_pixmap (result, bg_pixmap, gc,
549	src_x, src_y,
550	dst_x, dst_y,
551	dst_width, dst_height);
552	}
553
554	#if XRENDER
555	if (transparent)
556	{
557	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
558		325
559	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);	326	delete bg_img;
		327	bg_img = img;
560		328
561	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
562
563	Picture mask = create_xrender_mask (dpy, vt, False, False);
564
565	XRenderColor mask_c;
566
567	mask_c.alpha = 0x8000;
568	mask_c.red =
569	mask_c.green =
570	mask_c.blue = 0;
571	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
572
573	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
574
575	XRenderFreePicture (dpy, src);
576	XRenderFreePicture (dpy, dst);
577	XRenderFreePicture (dpy, mask);
578	}
579	#endif
580
581	XFreeGC (dpy, gc);
582
583	ret = true;
584	}
585
586	if (result != pixbuf)
587	g_object_unref (result);
588
589	if (transparent)
590	XFreePixmap (dpy, root_pmap);
591
592	return ret;	329	return true;
593	}	330	}
594	# endif /* HAVE_PIXBUF */
595		331
596	bool	332	rxvt_image::rxvt_image ()
597	rxvt_term::bg_set_file (const char *file)	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
		344	void
		345	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
598	{	346	{
599	if (!file || !*file)	347	if (!file || !*file)
600	return false;	348	return;
601		349
602	bool ret = false;
603	const char *p = strchr (file, ';');	350	const char *p = strchr (file, ';');
604		351
605	if (p)	352	if (p)
606	{	353	{
607	size_t len = p - file;	354	size_t len = p - file;
…		…
609	memcpy (f, file, len);	356	memcpy (f, file, len);
610	f[len] = '\0';	357	f[len] = '\0';
611	file = f;	358	file = f;
612	}	359	}
613		360
614	# ifdef HAVE_PIXBUF	361	set_file (s, file);
615	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	362	alpha = 0x8000;
616	if (image)	363	set_geometry (p ? p + 1 : "");
617	{	364	}
618	if (pixbuf)
619	g_object_unref (pixbuf);
620	pixbuf = image;
621	bg_flags |= BG_IS_FROM_FILE;
622	ret = true;
623	}
624	# endif
625		365
626	if (ret)	366	void
627	{	367	rxvt_image::set_file (rxvt_screen *s, const char *file)
628	if (p)	368	{
629	bg_set_geometry (p + 1);	369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
630	else	370	delete img;
631	bg_set_default_geometry ();	371	img = img2;
632	}
633
634	return ret;
635	}	372	}
636		373
637	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
638		375
639	# ifdef ENABLE_TRANSPARENCY
640	bool	376	bool
641	rxvt_term::bg_set_transparent ()	377	image_effects::set_blur (const char *geom)
642	{
643	if (!(bg_flags & BG_IS_TRANSPARENT))
644	{
645	bg_flags |= BG_IS_TRANSPARENT;
646	return true;
647	}
648
649	return false;
650	}
651
652	bool
653	rxvt_term::bg_set_blur (const char *geom)
654	{	378	{
655	bool changed = false;	379	bool changed = false;
656	unsigned int hr, vr;	380	unsigned int hr, vr;
657	int junk;	381	int junk;
658	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
675	{	399	{
676	changed = true;	400	changed = true;
677	v_blurRadius = vr;	401	v_blurRadius = vr;
678	}	402	}
679		403
680	if (h_blurRadius && v_blurRadius)
681	bg_flags |= BG_NEEDS_BLUR;
682	else
683	bg_flags &= ~BG_NEEDS_BLUR;
684
685	return changed;	404	return changed;
686	}	405	}
687		406
688	void
689	rxvt_term::set_tint_shade_flags ()
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	407	bool
698	rxvt_term::bg_set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
699	{	409	{
700	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	410	if (!tint_set || tint != new_tint)
701	{	411	{
702	tint = new_tint;	412	tint = new_tint;
703	bg_flags |= BG_TINT_SET;	413	tint_set = true;
704		414
705	rgba c;
706	tint.get (c);
707	if ((c.r <= 0x00ff || c.r >= 0xff00)
708	&& (c.g <= 0x00ff || c.g >= 0xff00)
709	&& (c.b <= 0x00ff || c.b >= 0xff00))
710	bg_flags |= BG_TINT_BITAND;
711	else
712	bg_flags &= ~BG_TINT_BITAND;
713
714	set_tint_shade_flags ();
715	return true;	415	return true;
716	}	416	}
717		417
718	return false;	418	return false;
719	}	419	}
720		420
721	bool	421	bool
722	rxvt_term::bg_set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
723	{	423	{
724	int new_shade = atoi (shade_str);	424	int new_shade = atoi (shade_str);
725		425
726	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
727	if (new_shade < 0)	427	if (new_shade < 0)
728	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
729		429
730	if (new_shade != shade)	430	if (new_shade != shade)
731	{	431	{
732	shade = new_shade;	432	shade = new_shade;
733	set_tint_shade_flags ();
734	return true;	433	return true;
735	}	434	}
736		435
737	return false;	436	return false;
738	}	437	}
739		438
740	#if XRENDER	439	# if BG_IMAGE_FROM_ROOT
741	static void
742	get_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
763	bool
764	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
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
828	bool
829	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, 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	/*	440	/*
920	* 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
921	* 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
922	* our window.	443	* our window.
923	*/	444	*/
924	bool	445	bool
925	rxvt_term::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
926	{	447	{
927	bool ret = false;
928
929	/* 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
930	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
931	*/	450	*/
932	int screen = display->screen;	451	int screen = display->screen;
933	int root_depth = DefaultDepth (dpy, screen);
934	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
935	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
936	unsigned int root_pmap_width, root_pmap_height;
937	int window_width = szHint.width;	454	int parent_width = szHint.width;
938	int window_height = szHint.height;	455	int parent_height = szHint.height;
939	int sx, sy;	456	int sx, sy;
940	XGCValues gcv;
941	GC gc;
942		457
943	sx = target_x;	458	sx = parent_x;
944	sy = target_y;	459	sy = parent_y;
		460
		461	if (!root_img)
		462	return false;
945		463
946	/* 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 : */
947	if (sx + window_width <= 0 || sy + window_height <= 0	465	if (sx + parent_width <= 0 || sy + parent_height <= 0
948	|| sx >= root_width || sy >= root_height)	466	|| sx >= root_width || sy >= root_height)
949	return 0;	467	return 0;
950		468
951	// validate root pixmap and get its size	469	while (sx < 0) sx += root_img->w;
952	if (root_pixmap != None)	470	while (sy < 0) sy += root_img->h;
953	{
954	Window wdummy;
955	int idummy;
956	unsigned int udummy;
957		471
958	allowedxerror = -1;	472	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
959		473
960	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	474	if (root_effects.need_blur ())
961	root_pixmap = None;	475	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
962		476
963	allowedxerror = 0;	477	if (root_effects.need_tint ())
964	}	478	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
965		479
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);	480	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
979	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);	481	img->convert_format (format, pix_colors [Color_bg])->replace (img);
980		482
981	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;
982		485
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	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
1047	XFreeGC (dpy, gc);
1048	}
1049
1050	if (recoded_root_pmap != root_pixmap)
1051	XFreePixmap (dpy, recoded_root_pmap);
1052
1053	return ret;	486	return true;
1054	}	487	}
1055		488
1056	void	489	void
1057	rxvt_term::bg_set_root_pixmap ()	490	rxvt_term::bg_set_root_pixmap ()
1058	{	491	{
1059	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	492	delete root_img;
1060	if (new_root_pixmap == None)	493	root_img = rxvt_img::new_from_root (this);
1061	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1062
1063	root_pixmap = new_root_pixmap;
1064	}	494	}
1065	# endif /* ENABLE_TRANSPARENCY */	495	# endif /* BG_IMAGE_FROM_ROOT */
1066		496
1067	bool	497	void
1068	rxvt_term::bg_render ()	498	rxvt_term::bg_render ()
1069	{	499	{
1070	bool transparent = false;	500	if (bg_flags & BG_INHIBIT_RENDER)
		501	return;
1071		502
1072	bg_invalidate ();	503	delete bg_img;
1073	# ifdef ENABLE_TRANSPARENCY	504	bg_img = 0;
1074	if (bg_flags & BG_IS_TRANSPARENT)	505	bg_flags = 0;
		506
		507	if (!mapped)
		508	return;
		509
		510	# if BG_IMAGE_FROM_ROOT
		511	if (option (Opt_transparent))
1075	{	512	{
1076	/* we need to re-generate transparency pixmap in that case ! */	513	/* we need to re-generate transparency pixmap in that case ! */
1077	transparent = make_transparency_pixmap ();	514	if (render_root_image ())
1078	if (transparent)	515	bg_flags |= BG_IS_VALID | BG_IS_TRANSPARENT;
		516	}
		517	# endif
		518
		519	# if BG_IMAGE_FROM_FILE
		520	if (fimage.img)
		521	{
		522	if (render_image (fimage))
1079	bg_flags |= BG_IS_VALID;	523	bg_flags |= BG_IS_VALID;
1080	}	524	}
1081	# endif	525	# endif
1082
1083	# ifdef BG_IMAGE_FROM_FILE
1084	if (bg_flags & BG_IS_FROM_FILE)
1085	{
1086	if (render_image (transparent))
1087	bg_flags |= BG_IS_VALID;
1088	}
1089	# endif
1090
1091	if (!(bg_flags & BG_IS_VALID))
1092	{
1093	if (bg_pixmap != None)
1094	{
1095	XFreePixmap (dpy, bg_pixmap);
1096	bg_pixmap = None;
1097	}
1098	}
1099		526
1100	scr_recolour (false);	527	scr_recolour (false);
1101	bg_flags |= BG_NEEDS_REFRESH;	528	bg_flags |= BG_NEEDS_REFRESH;
1102		529
1103	bg_valid_since = ev::now ();	530	bg_valid_since = ev::now ();
1104
1105	return true;
1106	}	531	}
1107		532
1108	void	533	void
1109	rxvt_term::bg_init ()	534	rxvt_term::bg_init ()
1110	{	535	{
1111	#ifdef ENABLE_TRANSPARENCY	536	#if BG_IMAGE_FROM_ROOT
1112	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	}
1113	#endif	552	#endif
1114		553
1115	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	554	#if BG_IMAGE_FROM_FILE
1116	#if XRENDER	555	if (rs[Rs_backgroundPixmap])
1117	int major, minor;
1118	if (XRenderQueryVersion (dpy, &major, &minor))
1119	bg_flags |= BG_HAS_RENDER;
1120	XFilters *filters = XRenderQueryFilters (dpy, vt);
1121	if (filters)
1122	{	556	{
1123	for (int i = 0; i < filters->nfilter; i++)	557	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1124	if (!strcmp (filters->filter[i], FilterConvolution))	558	if (!bg_window_position_sensitive ())
1125	bg_flags |= BG_HAS_RENDER_CONV;	559	update_background ();
1126
1127	XFree (filters);
1128	}	560	}
1129	#endif	561	#endif
1130	}	562	}
1131		563
1132	#endif /* HAVE_BG_PIXMAP */
1133
1134	#ifdef ENABLE_TRANSPARENCY
1135	/* based on code from aterm-0.4.2 */
1136
1137	static inline void
1138	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1139	{
1140	for (int i = 0; i <= mask >> sh; i++)
1141	{
1142	uint32_t tmp;
1143	tmp = i * high;
1144	tmp += (mask >> sh) * low;
1145	lookup[i] = (tmp / 0xffff) << sh;
1146	}
1147	}
1148
1149	void	564	void
1150	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)	565	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1151	{	566	{
1152	int sh_r, sh_g, sh_b;
1153	uint32_t mask_r, mask_g, mask_b;
1154	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1155	unsigned short low;
1156	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1157
1158	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1159
1160	/* for convenience */
1161	mask_r = visual->red_mask;
1162	mask_g = visual->green_mask;
1163	mask_b = visual->blue_mask;
1164
1165	/* boring lookup table pre-initialization */
1166	switch (ximage->depth)
1167	{
1168	case 15:
1169	if ((mask_r != 0x7c00) ||
1170	(mask_g != 0x03e0) ||
1171	(mask_b != 0x001f))
1172	return;
1173	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1174	lookup_r = lookup;
1175	lookup_g = lookup+32;
1176	lookup_b = lookup+32+32;
1177	sh_r = 10;
1178	sh_g = 5;
1179	sh_b = 0;
1180	break;
1181	case 16:
1182	if ((mask_r != 0xf800) ||
1183	(mask_g != 0x07e0) ||
1184	(mask_b != 0x001f))
1185	return;
1186	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1187	lookup_r = lookup;
1188	lookup_g = lookup+32;
1189	lookup_b = lookup+32+64;
1190	sh_r = 11;
1191	sh_g = 5;
1192	sh_b = 0;
1193	break;
1194	case 24:
1195	if ((mask_r != 0xff0000) ||
1196	(mask_g != 0x00ff00) ||
1197	(mask_b != 0x0000ff))
1198	return;
1199	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1200	lookup_r = lookup;
1201	lookup_g = lookup+256;
1202	lookup_b = lookup+256+256;
1203	sh_r = 16;
1204	sh_g = 8;
1205	sh_b = 0;
1206	break;
1207	case 32:
1208	if ((mask_r != 0xff0000) ||
1209	(mask_g != 0x00ff00) ||
1210	(mask_b != 0x0000ff))
1211	return;
1212	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1213	lookup_r = lookup;
1214	lookup_g = lookup+256;
1215	lookup_b = lookup+256+256;
1216	sh_r = 16;
1217	sh_g = 8;
1218	sh_b = 0;
1219	break;
1220	default:
1221	return; /* we do not support this color depth */
1222	}
1223
1224	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	567	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1225		568
1226	if (bg_flags & BG_TINT_SET)	569	if (tint_set)
1227	tint.get (c);	570	tint.get (c);
1228		571
1229	/* prepare limits for color transformation (each channel is handled separately) */
1230	if (shade > 100)	572	if (shade > 100)
1231	{	573	{
1232	c.r = c.r * (200 - shade) / 100;	574	c.r = c.r * (200 - shade) / 100;
1233	c.g = c.g * (200 - shade) / 100;	575	c.g = c.g * (200 - shade) / 100;
1234	c.b = c.b * (200 - shade) / 100;	576	c.b = c.b * (200 - shade) / 100;
1235
1236	low = 0xffff * (shade - 100) / 100;
1237	}	577	}
1238	else	578	else
1239	{	579	{
1240	c.r = c.r * shade / 100;	580	c.r = c.r * shade / 100;
1241	c.g = c.g * shade / 100;	581	c.g = c.g * shade / 100;
1242	c.b = c.b * shade / 100;	582	c.b = c.b * shade / 100;
1243
1244	low = 0;
1245	}
1246
1247	/* fill our lookup tables */
1248	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1249	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1250	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1251
1252	/* apply table to input image (replacing colors by newly calculated ones) */
1253	if (ximage->bits_per_pixel == 32
1254	&& (ximage->depth == 24 || ximage->depth == 32)
1255	&& ximage->byte_order == host_byte_order)
1256	{	583	}
1257	uint32_t *p1, *pf, *p, *pl;
1258	p1 = (uint32_t *) ximage->data;
1259	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1260		584
1261	while (p1 < pf)	585	img->contrast (c.r, c.g, c.b, c.a);
1262	{	586
1263	p = p1;	587	if (shade > 100)
1264	pl = p1 + ximage->width;
1265	for (; p < pl; p++)
1266	{
1267	*p = lookup_r[(*p & 0xff0000) >> 16] |
1268	lookup_g[(*p & 0x00ff00) >> 8] |
1269	lookup_b[(*p & 0x0000ff)] |
1270	(*p & 0xff000000);
1271	}
1272	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1273	}
1274	}	588	{
1275	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);
1276	{	594	}
1277	for (int y = 0; y < ximage->height; y++)
1278	for (int x = 0; x < ximage->width; x++)
1279	{
1280	unsigned long pixel = XGetPixel (ximage, x, y);
1281	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1282	lookup_g[(pixel & mask_g) >> sh_g] |
1283	lookup_b[(pixel & mask_b) >> sh_b];
1284	XPutPixel (ximage, x, y, pixel);
1285	}
1286	}
1287
1288	free (lookup);
1289	}	595	}
1290	#endif /* ENABLE_TRANSPARENCY */	596
		597	#endif /* HAVE_BG_PIXMAP */

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