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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.206 by sf-exg, Thu Apr 12 10:22:50 2012 UTC vs.
Revision 1.249 by sf-exg, Sun Dec 30 11:52:15 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	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
129	return lerp (0, window_size - image_size, align);	88	return lerp (0, window_size - image_size, align);
…		…
131	return lerp (window_size - image_size, window_size, align - 100);	90	return lerp (window_size - image_size, window_size, align - 100);
132	else	91	else
133	return lerp (-image_size, 0, align + 100);	92	return lerp (-image_size, 0, align + 100);
134	}	93	}
135		94
136	static inline int	95	static void
137	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)
138	{	97	{
139	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
140	dst_pos = pos;
141	dst_size = size;
142	if (pos < 0)
143	{
144	src_pos = -pos;
145	dst_pos = 0;
146	dst_size += pos;
147	}	99	{
148		100	flags = IM_TILE;
149	min_it (dst_size, target_size - dst_pos);	101	w = h = noScale;
150	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	}
151	}	128	}
152		129
153	bool	130	bool
154	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
155	{	132	{
156	bool changed = false;	133	bool changed = false;
157	int geom_flags = 0;	134	int geom_flags = 0;
158	int x = h_align;	135	int x = h_align;
159	int y = v_align;	136	int y = v_align;
160	unsigned int w = h_scale;	137	unsigned int w = h_scale;
161	unsigned int h = v_scale;	138	unsigned int h = v_scale;
162	unsigned long new_flags = 0;	139	uint8_t new_flags = 0;
163		140
164	if (geom == NULL)	141	if (geom == NULL)
165	return false;	142	return false;
166		143
167	if (geom[0])	144	if (geom[0])
168	{	145	{
169	char **arr = rxvt_strsplit (':', geom);	146	char **arr = rxvt_strsplit (':', geom);
170		147
171	for (int i = 0; arr[i]; i++)	148	for (int i = 0; arr[i]; i++)
172	{	149	{
173	if (!strcasecmp (arr[i], "style=tiled"))	150	if (!strncasecmp (arr[i], "style=", 6))
174	{	151	{
175	new_flags = BG_TILE;	152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
176	w = h = noScale;
177	x = y = 0;
178	geom_flags = WidthValue|HeightValue|XValue|YValue;	153	geom_flags = WidthValue|HeightValue|XValue|YValue;
179	}	154	}
180	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
181	{
182	new_flags = BG_KEEP_ASPECT;
183	w = h = windowScale;
184	x = y = centerAlign;
185	geom_flags = WidthValue|HeightValue|XValue|YValue;
186	}
187	else if (!strcasecmp (arr[i], "style=stretched"))
188	{
189	new_flags = 0;
190	w = h = windowScale;
191	geom_flags = WidthValue|HeightValue;
192	}
193	else if (!strcasecmp (arr[i], "style=centered"))
194	{
195	new_flags = 0;
196	w = h = noScale;
197	x = y = centerAlign;
198	geom_flags = WidthValue|HeightValue|XValue|YValue;
199	}
200	else if (!strcasecmp (arr[i], "style=root-tiled"))
201	{
202	new_flags = BG_TILE|BG_ROOT_ALIGN;
203	w = h = noScale;
204	geom_flags = WidthValue|HeightValue;
205	}
206	else if (!strcasecmp (arr[i], "op=tile"))	155	else if (!strcasecmp (arr[i], "op=tile"))
207	new_flags |= BG_TILE;	156	new_flags |= IM_TILE;
208	else if (!strcasecmp (arr[i], "op=keep-aspect"))	157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
209	new_flags |= BG_KEEP_ASPECT;	158	new_flags |= IM_KEEP_ASPECT;
210	else if (!strcasecmp (arr[i], "op=root-align"))	159	else if (!strcasecmp (arr[i], "op=root-align"))
211	new_flags |= BG_ROOT_ALIGN;	160	new_flags |= IM_ROOT_ALIGN;
212		161
213	// deprecated	162	// deprecated
214	else if (!strcasecmp (arr[i], "tile"))	163	else if (!strcasecmp (arr[i], "tile"))
215	{	164	{
216	new_flags |= BG_TILE;	165	new_flags |= IM_TILE;
217	w = h = noScale;	166	w = h = noScale;
218	geom_flags |= WidthValue|HeightValue;	167	geom_flags |= WidthValue|HeightValue;
219	}	168	}
220	else if (!strcasecmp (arr[i], "propscale"))	169	else if (!strcasecmp (arr[i], "propscale"))
221	{	170	{
222	new_flags |= BG_KEEP_ASPECT;	171	new_flags |= IM_KEEP_ASPECT;
223	w = h = windowScale;	172	w = h = windowScale;
224	geom_flags |= WidthValue|HeightValue;	173	geom_flags |= WidthValue|HeightValue;
225	}	174	}
226	else if (!strcasecmp (arr[i], "hscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
227	{	176	{
228	new_flags |= BG_TILE;	177	new_flags |= IM_TILE;
229	w = windowScale;	178	w = windowScale;
230	h = noScale;	179	h = noScale;
231	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
232	}	181	}
233	else if (!strcasecmp (arr[i], "vscale"))	182	else if (!strcasecmp (arr[i], "vscale"))
234	{	183	{
235	new_flags |= BG_TILE;	184	new_flags |= IM_TILE;
236	h = windowScale;	185	h = windowScale;
237	w = noScale;	186	w = noScale;
238	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
239	}	188	}
240	else if (!strcasecmp (arr[i], "scale"))	189	else if (!strcasecmp (arr[i], "scale"))
…		…
248	x = y = centerAlign;	197	x = y = centerAlign;
249	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
250	}	199	}
251	else if (!strcasecmp (arr[i], "root"))	200	else if (!strcasecmp (arr[i], "root"))
252	{	201	{
253	new_flags |= BG_TILE|BG_ROOT_ALIGN;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
254	w = h = noScale;	203	w = h = noScale;
255	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
256	}	205	}
257		206
258	else	207	else
…		…
260	} /* done parsing ops */	209	} /* done parsing ops */
261		210
262	rxvt_free_strsplit (arr);	211	rxvt_free_strsplit (arr);
263	}	212	}
264		213
265	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;	214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
266		215
267	if (!update)	216	if (!update)
268	{	217	{
269	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
270	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
277	h = w;	226	h = w;
278	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
279	w = h;	228	w = h;
280	}	229	}
281		230
282	min_it (w, 1000);
283	min_it (h, 1000);
284	clamp_it (x, -100, 200);	231	clamp_it (x, -100, 200);
285	clamp_it (y, -100, 200);	232	clamp_it (y, -100, 200);
286		233
287	if (bg_flags != new_flags	234	if (flags != new_flags
288	|| h_scale != w	235	|| h_scale != w
289	|| v_scale != h	236	|| v_scale != h
290	|| h_align != x	237	|| h_align != x
291	|| v_align != y)	238	|| v_align != y)
292	{	239	{
293	bg_flags = new_flags;	240	flags = new_flags;
294	h_scale = w;	241	h_scale = w;
295	v_scale = h;	242	v_scale = h;
296	h_align = x;	243	h_align = x;
297	v_align = y;	244	v_align = y;
298	changed = true;	245	changed = true;
299	}	246	}
300		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
301	return changed;	253	return changed;
302	}	254	}
303		255
304	void	256	void
305	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)
306	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
307	int target_width = szHint.width;	261	int parent_width = szHint.width;
308	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);
309		265
310	w = h_scale * target_width / 100;	266	w = h_scale * parent_width / 100;
311	h = v_scale * target_height / 100;	267	h = v_scale * parent_height / 100;
312		268
313	if (bg_flags & BG_KEEP_ASPECT)	269	if (image.flags & IM_KEEP_ASPECT)
314	{	270	{
315	float scale = (float)w / image_width;	271	float scale = (float)w / image_width;
316	min_it (scale, (float)h / image_height);	272	min_it (scale, (float)h / image_height);
317	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
318	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
319	}	275	}
320		276
321	if (!w) w = image_width;	277	if (!w) w = image_width;
322	if (!h) h = image_height;	278	if (!h) h = image_height;
323		279
324	if (bg_flags & BG_ROOT_ALIGN)	280	if (image.flags & IM_ROOT_ALIGN)
325	{	281	{
326	x = -target_x;	282	x = -parent_x;
327	y = -target_y;	283	y = -parent_y;
328	}	284	}
329	else	285	else
330	{	286	{
331	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
332	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
333	}
334
335	if (!(bg_flags & BG_TILE)
336	|| h_scale || v_scale
337	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
338	|| image_width > target_width || image_height > target_height)
339	bg_flags |= BG_IS_SIZE_SENSITIVE;
340	else
341	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
342	}
343
344	# ifdef HAVE_PIXBUF
345	bool
346	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
347	int src_x, int src_y, int dst_x, int dst_y,
348	unsigned int width, unsigned int height)
349	{
350	XImage *ximage;
351	char *data, *line;
352	int bytes_per_pixel;
353	int width_r, width_g, width_b;
354	int sh_r, sh_g, sh_b;
355	int rowstride;
356	int channels;
357	unsigned char *row;
358
359	if (visual->c_class != TrueColor)
360	return false;
361
362	if (depth == 24 || depth == 32)
363	bytes_per_pixel = 4;
364	else if (depth == 15 || depth == 16)
365	bytes_per_pixel = 2;
366	else
367	return false;
368
369	width_r = ecb_popcount32 (visual->red_mask);
370	width_g = ecb_popcount32 (visual->green_mask);
371	width_b = ecb_popcount32 (visual->blue_mask);
372
373	if (width_r > 8 || width_g > 8 || width_b > 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
380	if (width > INT_MAX / height / bytes_per_pixel)
381	return false;
382
383	data = (char *)malloc (width * height * bytes_per_pixel);
384	if (!data)
385	return false;
386
387	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
388	width, height, bytes_per_pixel * 8, 0);
389	if (!ximage)
390	{	289	}
391	free (data);
392	return false;
393	}
394
395	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
396
397	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
398	channels = gdk_pixbuf_get_n_channels (pixbuf);
399	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
400	line = data;
401
402	for (int y = 0; y < height; y++)
403	{
404	for (int x = 0; x < width; x++)
405	{
406	unsigned char *pixel = row + x * channels;
407	uint32_t value;
408
409	value = ((pixel[0] >> (8 - width_r)) << sh_r)
410	| ((pixel[1] >> (8 - width_g)) << sh_g)
411	| ((pixel[2] >> (8 - width_b)) << sh_b);
412
413	if (bytes_per_pixel == 4)
414	((uint32_t *)line)[x] = value;
415	else
416	((uint16_t *)line)[x] = value;
417	}
418
419	row += rowstride;
420	line += ximage->bytes_per_line;
421	}
422
423	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
424	XDestroyImage (ximage);
425	return true;
426	}	290	}
427		291
428	bool	292	bool
429	rxvt_term::render_image (bool transparent)	293	rxvt_term::render_image (rxvt_image &image)
430	{	294	{
431	if (!pixbuf)
432	return false;
433
434	if (transparent
435	&& !(bg_flags & BG_HAS_RENDER))
436	return false;
437
438	GdkPixbuf *result;
439
440	int image_width = gdk_pixbuf_get_width (pixbuf);
441	int image_height = gdk_pixbuf_get_height (pixbuf);
442
443	int target_width = szHint.width;	295	int parent_width = szHint.width;
444	int target_height = szHint.height;	296	int parent_height = szHint.height;
445	int new_pmap_width = target_width;
446	int new_pmap_height = target_height;
447		297
448	int x = 0;	298	int x = 0;
449	int y = 0;	299	int y = 0;
450	int w = 0;	300	int w = 0;
451	int h = 0;	301	int h = 0;
452		302
453	get_image_geometry (image_width, image_height, w, h, x, y);	303	get_image_geometry (image, w, h, x, y);
454		304
455	if (!(bg_flags & BG_ROOT_ALIGN)	305	if (!(image.flags & IM_ROOT_ALIGN)
456	&& (x >= target_width	306	&& (x >= parent_width
457	|| y >= target_height	307	|| y >= parent_height
458	|| x + w <= 0	308	|| x + w <= 0
459	|| y + h <= 0))	309	|| y + h <= 0))
460	return false;	310	return false;
461		311
462	result = pixbuf;	312	rxvt_img *img = image.img->scale (w, h);
463		313
464	if (w != image_width	314	if (image.flags & IM_TILE)
465	|| h != image_height)	315	img->repeat_mode (RepeatNormal);
466	{
467	result = gdk_pixbuf_scale_simple (pixbuf,
468	w, h,
469	GDK_INTERP_BILINEAR);
470	}
471
472	if (!result)
473	return false;
474
475	bool ret = false;
476
477	XGCValues gcv;
478	GC gc;
479	Pixmap root_pmap;
480
481	image_width = gdk_pixbuf_get_width (result);
482	image_height = gdk_pixbuf_get_height (result);
483
484	if (transparent)
485	{
486	root_pmap = bg_pixmap;
487	bg_pixmap = None;
488	}
489	else	316	else
490	{	317	img->repeat_mode (RepeatNone);
		318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
		319
491	if (bg_flags & BG_TILE)	320	if (bg_flags & BG_IS_VALID)
492	{	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
493	new_pmap_width = min (image_width, target_width);
494	new_pmap_height = min (image_height, target_height);
495	}
496	}
497		322
498	if (bg_pixmap == None
499	|| bg_pmap_width != new_pmap_width
500	|| bg_pmap_height != new_pmap_height)
501	{
502	if (bg_pixmap)
503	XFreePixmap (dpy, bg_pixmap);
504	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
505	bg_pmap_width = new_pmap_width;
506	bg_pmap_height = new_pmap_height;
507	}
508
509	gcv.foreground = pix_colors[Color_bg];
510	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
511
512	if (gc)
513	{
514	if (bg_flags & BG_TILE)
515	{
516	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
517	pixbuf_to_pixmap (result, tile, gc,
518	0, 0,
519	0, 0,
520	image_width, image_height);
521
522	gcv.tile = tile;
523	gcv.fill_style = FillTiled;
524	gcv.ts_x_origin = x;
525	gcv.ts_y_origin = y;
526	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
527
528	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
529	XFreePixmap (dpy, tile);
530	}
531	else
532	{
533	int src_x, src_y, dst_x, dst_y;
534	int dst_width, dst_height;
535
536	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
537	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
538
539	if (dst_x > 0 || dst_y > 0
540	|| dst_x + dst_width < new_pmap_width
541	|| dst_y + dst_height < new_pmap_height)
542	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
543
544	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
545	pixbuf_to_pixmap (result, bg_pixmap, gc,
546	src_x, src_y,
547	dst_x, dst_y,
548	dst_width, dst_height);
549	}
550
551	#if XRENDER
552	if (transparent)
553	{
554	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
555		325
556	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);	326	delete bg_img;
		327	bg_img = img;
557		328
558	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
559
560	Picture mask = create_xrender_mask (dpy, vt, False, False);
561
562	XRenderColor mask_c;
563
564	mask_c.alpha = 0x8000;
565	mask_c.red =
566	mask_c.green =
567	mask_c.blue = 0;
568	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
569
570	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
571
572	XRenderFreePicture (dpy, src);
573	XRenderFreePicture (dpy, dst);
574	XRenderFreePicture (dpy, mask);
575	}
576	#endif
577
578	XFreeGC (dpy, gc);
579
580	ret = true;
581	}
582
583	if (result != pixbuf)
584	g_object_unref (result);
585
586	if (transparent)
587	XFreePixmap (dpy, root_pmap);
588
589	return ret;	329	return true;
590	}	330	}
591	# endif /* HAVE_PIXBUF */
592		331
593	bool	332	rxvt_image::rxvt_image ()
594	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)
595	{	346	{
596	if (!file || !*file)	347	if (!file || !*file)
597	return false;	348	return;
598		349
599	bool ret = false;
600	const char *p = strchr (file, ';');	350	const char *p = strchr (file, ';');
601		351
602	if (p)	352	if (p)
603	{	353	{
604	size_t len = p - file;	354	size_t len = p - file;
…		…
606	memcpy (f, file, len);	356	memcpy (f, file, len);
607	f[len] = '\0';	357	f[len] = '\0';
608	file = f;	358	file = f;
609	}	359	}
610		360
611	# ifdef HAVE_PIXBUF	361	set_file (s, file);
612	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	362	alpha = 0x8000;
613	if (image)	363	set_geometry (p ? p + 1 : "");
614	{	364	}
615	if (pixbuf)
616	g_object_unref (pixbuf);
617	pixbuf = image;
618	bg_flags |= BG_IS_FROM_FILE;
619	ret = true;
620	}
621	# endif
622		365
623	if (ret)	366	void
624	{	367	rxvt_image::set_file (rxvt_screen *s, const char *file)
625	if (p)	368	{
626	bg_set_geometry (p + 1);	369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
627	else	370	delete img;
628	bg_set_default_geometry ();	371	img = img2;
629	}
630
631	return ret;
632	}	372	}
633		373
634	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
635		375
636	# ifdef ENABLE_TRANSPARENCY
637	bool	376	bool
638	rxvt_term::bg_set_transparent ()	377	image_effects::set_blur (const char *geom)
639	{
640	if (!(bg_flags & BG_IS_TRANSPARENT))
641	{
642	bg_flags |= BG_IS_TRANSPARENT;
643	return true;
644	}
645
646	return false;
647	}
648
649	bool
650	rxvt_term::bg_set_blur (const char *geom)
651	{	378	{
652	bool changed = false;	379	bool changed = false;
653	unsigned int hr, vr;	380	unsigned int hr, vr;
654	int junk;	381	int junk;
655	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
672	{	399	{
673	changed = true;	400	changed = true;
674	v_blurRadius = vr;	401	v_blurRadius = vr;
675	}	402	}
676		403
677	if (h_blurRadius && v_blurRadius)
678	bg_flags |= BG_NEEDS_BLUR;
679	else
680	bg_flags &= ~BG_NEEDS_BLUR;
681
682	return changed;	404	return changed;
683	}	405	}
684		406
685	void
686	rxvt_term::set_tint_shade_flags ()
687	{
688	if (shade != 100 || (bg_flags & BG_TINT_SET))
689	bg_flags |= BG_NEEDS_TINT;
690	else
691	bg_flags &= ~BG_NEEDS_TINT;
692	}
693
694	bool	407	bool
695	rxvt_term::bg_set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
696	{	409	{
697	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	410	if (!tint_set || tint != new_tint)
698	{	411	{
699	tint = new_tint;	412	tint = new_tint;
700	bg_flags |= BG_TINT_SET;	413	tint_set = true;
701		414
702	rgba c;
703	tint.get (c);
704	if ((c.r <= 0x00ff || c.r >= 0xff00)
705	&& (c.g <= 0x00ff || c.g >= 0xff00)
706	&& (c.b <= 0x00ff || c.b >= 0xff00))
707	bg_flags |= BG_TINT_BITAND;
708	else
709	bg_flags &= ~BG_TINT_BITAND;
710
711	set_tint_shade_flags ();
712	return true;	415	return true;
713	}	416	}
714		417
715	return false;	418	return false;
716	}	419	}
717		420
718	bool	421	bool
719	rxvt_term::bg_set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
720	{	423	{
721	int new_shade = atoi (shade_str);	424	int new_shade = atoi (shade_str);
722		425
723	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
724	if (new_shade < 0)	427	if (new_shade < 0)
725	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
726		429
727	if (new_shade != shade)	430	if (new_shade != shade)
728	{	431	{
729	shade = new_shade;	432	shade = new_shade;
730	set_tint_shade_flags ();
731	return true;	433	return true;
732	}	434	}
733		435
734	return false;	436	return false;
735	}	437	}
736		438
737	#if XRENDER	439	# if BG_IMAGE_FROM_ROOT
738	static void
739	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
740	{
741	double sigma = radius / 2.0;
742	double scale = sqrt (2.0 * M_PI) * sigma;
743	double sum = 0.0;
744
745	for (int i = 0; i < width; i++)
746	{
747	double x = i - width / 2;
748	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
749	sum += kernel[i];
750	}
751
752	params[0] = XDoubleToFixed (width);
753	params[1] = XDoubleToFixed (1);
754
755	for (int i = 0; i < width; i++)
756	params[i+2] = XDoubleToFixed (kernel[i] / sum);
757	}
758	#endif
759
760	bool
761	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
762	{
763	bool ret = false;
764	#if XRENDER
765	if (!(bg_flags & BG_HAS_RENDER_CONV))
766	return false;
767
768	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
769	double *kernel = (double *)malloc (size * sizeof (double));
770	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
771
772	XRenderPictureAttributes pa;
773	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
774
775	pa.repeat = RepeatPad;
776	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
777	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
778	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
779	XFreePixmap (dpy, tmp);
780
781	if (kernel && params)
782	{
783	size = h_blurRadius * 2 + 1;
784	get_gaussian_kernel (h_blurRadius, size, kernel, params);
785
786	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
787	XRenderComposite (dpy,
788	PictOpSrc,
789	src,
790	None,
791	dst,
792	0, 0,
793	0, 0,
794	0, 0,
795	width, height);
796
797	::swap (src, dst);
798
799	size = v_blurRadius * 2 + 1;
800	get_gaussian_kernel (v_blurRadius, size, kernel, params);
801	::swap (params[0], params[1]);
802
803	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
804	XRenderComposite (dpy,
805	PictOpSrc,
806	src,
807	None,
808	dst,
809	0, 0,
810	0, 0,
811	0, 0,
812	width, height);
813
814	ret = true;
815	}
816
817	free (kernel);
818	free (params);
819	XRenderFreePicture (dpy, src);
820	XRenderFreePicture (dpy, dst);
821	#endif
822	return ret;
823	}
824
825	bool
826	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
827	{
828	bool ret = false;
829
830	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
831	{
832	XGCValues gcv;
833	GC gc;
834
835	/* In this case we can tint image server-side getting significant
836	* performance improvements, as we eliminate XImage transfer
837	*/
838	gcv.foreground = Pixel (tint);
839	gcv.function = GXand;
840	gcv.fill_style = FillSolid;
841	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
842	if (gc)
843	{
844	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
845	ret = true;
846	XFreeGC (dpy, gc);
847	}
848	}
849	# if XRENDER
850	else if (bg_flags & BG_HAS_RENDER)
851	{
852	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
853
854	if (bg_flags & BG_TINT_SET)
855	tint.get (c);
856
857	if (shade <= 100)
858	{
859	c.r = c.r * shade / 100;
860	c.g = c.g * shade / 100;
861	c.b = c.b * shade / 100;
862	}
863	else
864	{
865	c.r = c.r * (200 - shade) / 100;
866	c.g = c.g * (200 - shade) / 100;
867	c.b = c.b * (200 - shade) / 100;
868	}
869
870	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
871
872	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
873
874	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
875
876	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
877
878	XRenderColor mask_c;
879
880	mask_c.alpha = 0xffff;
881	mask_c.red =
882	mask_c.green =
883	mask_c.blue = 0;
884	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
885
886	mask_c.alpha = 0;
887	mask_c.red = 0xffff - c.r;
888	mask_c.green = 0xffff - c.g;
889	mask_c.blue = 0xffff - c.b;
890	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
891
892	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
893
894	if (shade > 100)
895	{
896	mask_c.alpha = 0;
897	mask_c.red =
898	mask_c.green =
899	mask_c.blue = 0xffff * (shade - 100) / 100;
900	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
901
902	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
903	}
904
905	ret = true;
906
907	XRenderFreePicture (dpy, mask_pic);
908	XRenderFreePicture (dpy, overlay_pic);
909	XRenderFreePicture (dpy, back_pic);
910	}
911	# endif
912
913	return ret;
914	}
915
916	/*	440	/*
917	* 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
918	* 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
919	* our window.	443	* our window.
920	*/	444	*/
921	bool	445	bool
922	rxvt_term::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
923	{	447	{
924	bool ret = false;
925
926	/* 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
927	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
928	*/	450	*/
929	int screen = display->screen;	451	int screen = display->screen;
930	int root_depth = DefaultDepth (dpy, screen);
931	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
932	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
933	unsigned int root_pmap_width, root_pmap_height;
934	int window_width = szHint.width;	454	int parent_width = szHint.width;
935	int window_height = szHint.height;	455	int parent_height = szHint.height;
936	int sx, sy;	456	int sx, sy;
937	XGCValues gcv;
938	GC gc;
939		457
940	sx = target_x;	458	sx = parent_x;
941	sy = target_y;	459	sy = parent_y;
		460
		461	if (!root_img)
		462	return false;
942		463
943	/* 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 : */
944	if (sx + window_width <= 0 || sy + window_height <= 0	465	if (sx + parent_width <= 0 || sy + parent_height <= 0
945	|| sx >= root_width || sy >= root_height)	466	|| sx >= root_width || sy >= root_height)
946	return 0;	467	return 0;
947		468
948	// validate root pixmap and get its size	469	while (sx < 0) sx += root_img->w;
949	if (root_pixmap != None)	470	while (sy < 0) sy += root_img->h;
950	{
951	Window wdummy;
952	int idummy;
953	unsigned int udummy;
954		471
955	allowedxerror = -1;	472	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
956		473
957	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	474	if (root_effects.need_blur ())
958	root_pixmap = None;	475	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
959		476
960	allowedxerror = 0;	477	if (root_effects.need_tint ())
961	}	478	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
962		479
963	Pixmap recoded_root_pmap = root_pixmap;
964
965	if (root_pixmap != None && root_depth != depth)
966	{
967	#if XRENDER
968	if (bg_flags & BG_HAS_RENDER)
969	{
970	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
971
972	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
973	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
974
975	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	480	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
976	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);	481	img->convert_format (format, pix_colors [Color_bg])->replace (img);
977		482
978	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;
979		485
980	XRenderFreePicture (dpy, src);
981	XRenderFreePicture (dpy, dst);
982	}
983	else
984	#endif
985	recoded_root_pmap = None;
986	}
987
988	if (recoded_root_pmap == None)
989	return 0;
990
991	if (bg_pixmap == None
992	|| bg_pmap_width != window_width
993	|| bg_pmap_height != window_height)
994	{
995	if (bg_pixmap)
996	XFreePixmap (dpy, bg_pixmap);
997	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
998	bg_pmap_width = window_width;
999	bg_pmap_height = window_height;
1000	}
1001
1002	/* straightforward pixmap copy */
1003	while (sx < 0) sx += root_pmap_width;
1004	while (sy < 0) sy += root_pmap_height;
1005
1006	gcv.tile = recoded_root_pmap;
1007	gcv.fill_style = FillTiled;
1008	gcv.ts_x_origin = -sx;
1009	gcv.ts_y_origin = -sy;
1010	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1011
1012	if (gc)
1013	{
1014	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1015	ret = true;
1016	unsigned long tr_flags = bg_flags & BG_EFFECTS_FLAGS;
1017
1018	if (!(bg_flags & BG_CLIENT_RENDER))
1019	{
1020	if (bg_flags & BG_NEEDS_BLUR)
1021	{
1022	if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
1023	tr_flags &= ~BG_NEEDS_BLUR;
1024	}
1025	if (bg_flags & BG_NEEDS_TINT)
1026	{
1027	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1028	tr_flags &= ~BG_NEEDS_TINT;
1029	}
1030	if (tr_flags & BG_NEEDS_TINT)
1031	{
1032	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1033	if (ximage)
1034	{
1035	/* our own client-side tinting */
1036	tint_ximage (DefaultVisual (dpy, display->screen), ximage);
1037
1038	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1039	XDestroyImage (ximage);
1040	}
1041	}
1042	} /* server side rendering completed */
1043
1044	XFreeGC (dpy, gc);
1045	}
1046
1047	if (recoded_root_pmap != root_pixmap)
1048	XFreePixmap (dpy, recoded_root_pmap);
1049
1050	return ret;	486	return true;
1051	}	487	}
1052		488
1053	void	489	void
1054	rxvt_term::bg_set_root_pixmap ()	490	rxvt_term::bg_set_root_pixmap ()
1055	{	491	{
1056	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	492	delete root_img;
1057	if (new_root_pixmap == None)	493	root_img = rxvt_img::new_from_root (this);
1058	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1059
1060	root_pixmap = new_root_pixmap;
1061	}	494	}
1062	# endif /* ENABLE_TRANSPARENCY */	495	# endif /* BG_IMAGE_FROM_ROOT */
1063		496
1064	bool	497	void
1065	rxvt_term::bg_render ()	498	rxvt_term::bg_render ()
1066	{	499	{
1067	bool transparent = false;	500	if (bg_flags & BG_INHIBIT_RENDER)
		501	return;
1068		502
1069	bg_invalidate ();	503	bg_flags &= BG_INHIBIT_RENDER;
1070	# ifdef ENABLE_TRANSPARENCY	504
1071	if (bg_flags & BG_IS_TRANSPARENT)	505	# if BG_IMAGE_FROM_ROOT
		506	if (option (Opt_transparent))
1072	{	507	{
1073	/* we need to re-generate transparency pixmap in that case ! */	508	/* we need to re-generate transparency pixmap in that case ! */
1074	transparent = make_transparency_pixmap ();	509	if (render_root_image ())
1075	if (transparent)	510	bg_flags |= BG_IS_VALID | BG_IS_TRANSPARENT;
		511	}
		512	# endif
		513
		514	# if BG_IMAGE_FROM_FILE
		515	if (fimage.img)
		516	{
		517	if (render_image (fimage))
1076	bg_flags |= BG_IS_VALID;	518	bg_flags |= BG_IS_VALID;
1077	}	519	}
1078	# endif	520	# endif
1079		521
1080	# ifdef BG_IMAGE_FROM_FILE
1081	if (bg_flags & BG_IS_FROM_FILE)
1082	{
1083	if (render_image (transparent))
1084	bg_flags |= BG_IS_VALID;
1085	}
1086	# endif
1087
1088	if (!(bg_flags & BG_IS_VALID))	522	if (!(bg_flags & BG_IS_VALID))
1089	{	523	{
1090	if (bg_pixmap != None)	524	delete bg_img;
1091	{	525	bg_img = 0;
1092	XFreePixmap (dpy, bg_pixmap);
1093	bg_pixmap = None;
1094	}
1095	}	526	}
1096		527
1097	scr_recolour (false);	528	scr_recolour (false);
1098	bg_flags |= BG_NEEDS_REFRESH;	529	bg_flags |= BG_NEEDS_REFRESH;
1099		530
1100	bg_valid_since = ev::now ();	531	bg_valid_since = ev::now ();
1101
1102	return true;
1103	}	532	}
1104		533
1105	void	534	void
1106	rxvt_term::bg_init ()	535	rxvt_term::bg_init ()
1107	{	536	{
1108	#ifdef ENABLE_TRANSPARENCY	537	#if BG_IMAGE_FROM_ROOT
1109	shade = 100;	538	if (option (Opt_transparent))
		539	{
		540	if (rs [Rs_blurradius])
		541	root_effects.set_blur (rs [Rs_blurradius]);
		542
		543	if (ISSET_PIXCOLOR (Color_tint))
		544	root_effects.set_tint (pix_colors_focused [Color_tint]);
		545
		546	if (rs [Rs_shade])
		547	root_effects.set_shade (rs [Rs_shade]);
		548
		549	bg_set_root_pixmap ();
		550	XSelectInput (dpy, display->root, PropertyChangeMask);
		551	rootwin_ev.start (display, display->root);
		552	}
1110	#endif	553	#endif
1111		554
1112	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	555	#if BG_IMAGE_FROM_FILE
1113	#if XRENDER	556	if (rs[Rs_backgroundPixmap])
1114	int major, minor;
1115	if (XRenderQueryVersion (dpy, &major, &minor))
1116	bg_flags |= BG_HAS_RENDER;
1117	XFilters *filters = XRenderQueryFilters (dpy, vt);
1118	if (filters)
1119	{	557	{
1120	for (int i = 0; i < filters->nfilter; i++)	558	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1121	if (!strcmp (filters->filter[i], FilterConvolution))	559	if (!bg_window_position_sensitive ())
1122	bg_flags |= BG_HAS_RENDER_CONV;	560	update_background ();
1123
1124	XFree (filters);
1125	}	561	}
1126	#endif	562	#endif
1127	}	563	}
1128		564
1129	#endif /* HAVE_BG_PIXMAP */
1130
1131	#ifdef ENABLE_TRANSPARENCY
1132	/* based on code from aterm-0.4.2 */
1133
1134	static inline void
1135	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1136	{
1137	for (int i = 0; i <= mask >> sh; i++)
1138	{
1139	uint32_t tmp;
1140	tmp = i * high;
1141	tmp += (mask >> sh) * low;
1142	lookup[i] = (tmp / 0xffff) << sh;
1143	}
1144	}
1145
1146	void	565	void
1147	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)	566	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1148	{	567	{
1149	int sh_r, sh_g, sh_b;
1150	uint32_t mask_r, mask_g, mask_b;
1151	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1152	unsigned short low;
1153	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1154
1155	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1156
1157	/* for convenience */
1158	mask_r = visual->red_mask;
1159	mask_g = visual->green_mask;
1160	mask_b = visual->blue_mask;
1161
1162	/* boring lookup table pre-initialization */
1163	switch (ximage->depth)
1164	{
1165	case 15:
1166	if ((mask_r != 0x7c00) ||
1167	(mask_g != 0x03e0) ||
1168	(mask_b != 0x001f))
1169	return;
1170	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1171	lookup_r = lookup;
1172	lookup_g = lookup+32;
1173	lookup_b = lookup+32+32;
1174	sh_r = 10;
1175	sh_g = 5;
1176	sh_b = 0;
1177	break;
1178	case 16:
1179	if ((mask_r != 0xf800) ||
1180	(mask_g != 0x07e0) ||
1181	(mask_b != 0x001f))
1182	return;
1183	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1184	lookup_r = lookup;
1185	lookup_g = lookup+32;
1186	lookup_b = lookup+32+64;
1187	sh_r = 11;
1188	sh_g = 5;
1189	sh_b = 0;
1190	break;
1191	case 24:
1192	if ((mask_r != 0xff0000) ||
1193	(mask_g != 0x00ff00) ||
1194	(mask_b != 0x0000ff))
1195	return;
1196	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1197	lookup_r = lookup;
1198	lookup_g = lookup+256;
1199	lookup_b = lookup+256+256;
1200	sh_r = 16;
1201	sh_g = 8;
1202	sh_b = 0;
1203	break;
1204	case 32:
1205	if ((mask_r != 0xff0000) ||
1206	(mask_g != 0x00ff00) ||
1207	(mask_b != 0x0000ff))
1208	return;
1209	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1210	lookup_r = lookup;
1211	lookup_g = lookup+256;
1212	lookup_b = lookup+256+256;
1213	sh_r = 16;
1214	sh_g = 8;
1215	sh_b = 0;
1216	break;
1217	default:
1218	return; /* we do not support this color depth */
1219	}
1220
1221	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	568	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1222		569
1223	if (bg_flags & BG_TINT_SET)	570	if (tint_set)
1224	tint.get (c);	571	tint.get (c);
1225		572
1226	/* prepare limits for color transformation (each channel is handled separately) */
1227	if (shade > 100)	573	if (shade > 100)
1228	{	574	{
1229	c.r = c.r * (200 - shade) / 100;	575	c.r = c.r * (200 - shade) / 100;
1230	c.g = c.g * (200 - shade) / 100;	576	c.g = c.g * (200 - shade) / 100;
1231	c.b = c.b * (200 - shade) / 100;	577	c.b = c.b * (200 - shade) / 100;
1232
1233	low = 0xffff * (shade - 100) / 100;
1234	}	578	}
1235	else	579	else
1236	{	580	{
1237	c.r = c.r * shade / 100;	581	c.r = c.r * shade / 100;
1238	c.g = c.g * shade / 100;	582	c.g = c.g * shade / 100;
1239	c.b = c.b * shade / 100;	583	c.b = c.b * shade / 100;
1240
1241	low = 0;
1242	}
1243
1244	/* fill our lookup tables */
1245	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1246	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1247	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1248
1249	/* apply table to input image (replacing colors by newly calculated ones) */
1250	if (ximage->bits_per_pixel == 32
1251	&& (ximage->depth == 24 || ximage->depth == 32)
1252	&& ximage->byte_order == host_byte_order)
1253	{	584	}
1254	uint32_t *p1, *pf, *p, *pl;
1255	p1 = (uint32_t *) ximage->data;
1256	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1257		585
1258	while (p1 < pf)	586	img->contrast (c.r, c.g, c.b, c.a);
1259	{	587
1260	p = p1;	588	if (shade > 100)
1261	pl = p1 + ximage->width;
1262	for (; p < pl; p++)
1263	{
1264	*p = lookup_r[(*p & 0xff0000) >> 16] |
1265	lookup_g[(*p & 0x00ff00) >> 8] |
1266	lookup_b[(*p & 0x0000ff)] |
1267	(*p & 0xff000000);
1268	}
1269	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1270	}
1271	}	589	{
1272	else	590	c.a = 0xffff;
		591	c.r =
		592	c.g =
		593	c.b = 0xffff * (shade - 100) / 100;
		594	img->brightness (c.r, c.g, c.b, c.a);
1273	{	595	}
1274	for (int y = 0; y < ximage->height; y++)
1275	for (int x = 0; x < ximage->width; x++)
1276	{
1277	unsigned long pixel = XGetPixel (ximage, x, y);
1278	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1279	lookup_g[(pixel & mask_g) >> sh_g] |
1280	lookup_b[(pixel & mask_b) >> sh_b];
1281	XPutPixel (ximage, x, y, pixel);
1282	}
1283	}
1284
1285	free (lookup);
1286	}	596	}
1287	#endif /* ENABLE_TRANSPARENCY */	597
		598	#endif /* HAVE_BG_PIXMAP */

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