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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.161 by sf-exg, Thu Aug 11 08:39:10 2011 UTC vs.
Revision 1.254 by sf-exg, Sun Dec 30 20:28:31 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 <cmath>
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	/*
38	* Pixmap geometry string interpretation :
39	* Each geometry string contains zero or one scale/position
40	* adjustment and may optionally be followed by a colon and one or more
41	* colon-delimited pixmap operations.
42	* The following table shows the valid geometry strings and their
43	* effects on the background image :
44	*
45	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
46	* W and H are percentages of the terminal window size.
47	* X and Y are also percentages; e.g., +50+50 centers
48	* the image in the window.
49	*
50	* Pixmap Operations : (should be prepended by a colon)
51	*/
52
53	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
54	void	30	void
55	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
56	{	32	{
57	#ifdef HAVE_AFTERIMAGE	33	# if BG_IMAGE_FROM_ROOT
58	if (original_asim)	34	delete root_img;
59	safe_asimage_destroy (original_asim);	35	root_img = 0;
60	if (asv)
61	destroy_asvisual (asv, 0);
62	if (asimman)
63	destroy_image_manager (asimman, 0);
64	#endif	36	# endif
65		37
66	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
67	if (pixbuf)	39	fimage.destroy ();
68	g_object_unref (pixbuf);
69	#endif	40	# endif
70
71	if (bg_pixmap)
72	XFreePixmap (dpy, bg_pixmap);
73	}	41	}
74		42
75	bool	43	bool
76	rxvt_term::bg_set_position (int x, int y)	44	rxvt_term::bg_window_size_sensitive ()
77	{	45	{
		46	# if BG_IMAGE_FROM_ROOT
		47	if (root_img)
		48	return true;
		49	# endif
78		50
79	if (target_x != x	51	# if BG_IMAGE_FROM_FILE
80	|| target_y != y)	52	if (fimage.img)
81	{	53	{
82	target_x = x;	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
83	target_y = y;	55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
84	return true;	57	return true;
85	}	58	}
		59	# endif
		60
86	return false;	61	return false;
87	}	62	}
88		63
89	bool	64	bool
90	rxvt_term::bg_window_size_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
91	{	66	{
92	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
93	if (bg_flags & BG_IS_TRANSPARENT)	68	if (root_img)
94	return true;	69	return true;
95	# endif	70	# endif
96		71
97	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
98	if (bg_flags & BG_IS_FROM_FILE)	73	if (fimage.img)
99	{	74	{
100	if (bg_flags & BG_IS_SIZE_SENSITIVE)	75	if (fimage.flags & IM_ROOT_ALIGN)
101	return true;	76	return true;
102	}	77	}
103	# endif	78	# endif
104		79
105	return false;	80	return false;
106	}	81	}
107		82
108	bool
109	rxvt_term::bg_window_position_sensitive ()
110	{
111	# ifdef ENABLE_TRANSPARENCY
112	if (bg_flags & BG_IS_TRANSPARENT)
113	return true;
114	# endif
115
116	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
117	if (bg_flags & BG_IS_FROM_FILE)
118	{
119	if (bg_flags & BG_ROOT_ALIGN)
120	return true;
121	}
122	# endif
123
124	return false;
125	}
126
127	# ifdef BG_IMAGE_FROM_FILE
128	static inline bool
129	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
130	{
131	if (geom_flags & flag)
132	{
133	if (new_value > 1000)
134	new_value = 1000;
135	if (new_value != scale)
136	{
137	scale = new_value;
138	return true;
139	}
140	}
141	return false;
142	}
143
144	static inline bool
145	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
146	{
147	if (geom_flags & flag)
148	{
149	if (new_value < -100)
150	new_value = -100;
151	else if (new_value > 200)
152	new_value = 200;
153	if (new_value != align)
154	{
155	align = new_value;
156	return true;
157	}
158	}
159	return false;
160	}
161
162	static inline int	84	static inline int
163	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
164	{	86	{
165	int diff = window_size - image_size;
166	int smaller = min (image_size, window_size);
167
168	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
169	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
170	else if (align > 100 && align <= 200)	89	else if (align > 100)
171	return ((align - 100) * smaller / 100) + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
172	else if (align >= -100 && align < 0)	91	else
173	return ((align + 100) * smaller / 100) - image_size;	92	return lerp (-image_size, 0, align + 100);
174	return 0;
175	}	93	}
176		94
177	static inline int	95	static void
178	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)
179	{	97	{
180	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
181	dst_pos = pos;
182	dst_size = size;
183	if (pos < 0)
184	{
185	src_pos = -pos;
186	dst_pos = 0;
187	dst_size += pos;
188	}	99	{
189		100	flags = IM_TILE;
190	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
191	dst_size = target_size - dst_pos;	102	x = y = 0;
192	return src_pos;	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	}
193	}	128	}
194		129
195	bool	130	bool
196	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
197	{	132	{
198	bool changed = false;	133	bool changed = false;
199	int geom_flags = 0;	134	int geom_flags = 0;
200	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
201	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
202	unsigned int n;	138	unsigned int h = v_scale;
203	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	139	uint8_t new_flags = 0;
204	const char *ops;
205		140
206	if (geom == NULL)	141	if (geom == NULL)
207	return false;	142	return false;
208		143
209	char str[256];	144	if (geom[0])
210
211	ops = strchr (geom, ':');
212	if (ops == NULL)
213	n = strlen (geom);
214	else
215	n = ops - geom;
216
217	if (n >= sizeof (str))
218	return false;
219
220	memcpy (str, geom, n);
221	str[n] = '\0';
222	rxvt_strtrim (str);
223
224	if (str[0])
225	{	145	{
226	/* we have geometry string - let's handle it prior to applying ops */	146	char **arr = rxvt_strsplit (':', geom);
		147
		148	for (int i = 0; arr[i]; i++)
		149	{
		150	if (!strncasecmp (arr[i], "style=", 6))
		151	{
		152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		153	geom_flags = WidthValue|HeightValue|XValue|YValue;
		154	}
		155	else if (!strcasecmp (arr[i], "op=tile"))
		156	new_flags |= IM_TILE;
		157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		158	new_flags |= IM_KEEP_ASPECT;
		159	else if (!strcasecmp (arr[i], "op=root-align"))
		160	new_flags |= IM_ROOT_ALIGN;
		161
		162	// deprecated
		163	else if (!strcasecmp (arr[i], "tile"))
		164	{
		165	new_flags |= IM_TILE;
		166	w = h = noScale;
		167	geom_flags |= WidthValue|HeightValue;
		168	}
		169	else if (!strcasecmp (arr[i], "propscale"))
		170	{
		171	new_flags |= IM_KEEP_ASPECT;
		172	w = h = windowScale;
		173	geom_flags |= WidthValue|HeightValue;
		174	}
		175	else if (!strcasecmp (arr[i], "hscale"))
		176	{
		177	new_flags |= IM_TILE;
		178	w = windowScale;
		179	h = noScale;
		180	geom_flags |= WidthValue|HeightValue;
		181	}
		182	else if (!strcasecmp (arr[i], "vscale"))
		183	{
		184	new_flags |= IM_TILE;
		185	h = windowScale;
		186	w = noScale;
		187	geom_flags |= WidthValue|HeightValue;
		188	}
		189	else if (!strcasecmp (arr[i], "scale"))
		190	{
		191	w = h = windowScale;
		192	geom_flags |= WidthValue|HeightValue;
		193	}
		194	else if (!strcasecmp (arr[i], "auto"))
		195	{
		196	w = h = windowScale;
		197	x = y = centerAlign;
		198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		199	}
		200	else if (!strcasecmp (arr[i], "root"))
		201	{
		202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		203	w = h = noScale;
		204	geom_flags |= WidthValue|HeightValue;
		205	}
		206
		207	else
227	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
228	} /* done parsing geometry string */	209	} /* done parsing ops */
		210
		211	rxvt_free_strsplit (arr);
		212	}
		213
		214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
229		215
230	if (!update)	216	if (!update)
231	{	217	{
232	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
233	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
238	w = h = defaultScale;	224	w = h = defaultScale;
239	else if (!(geom_flags & HeightValue))	225	else if (!(geom_flags & HeightValue))
240	h = w;	226	h = w;
241	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
242	w = h;	228	w = h;
243
244	geom_flags |= WidthValue|HeightValue|XValue|YValue;
245	}
246
247	if (ops)
248	{	229	}
249	char **arr = rxvt_strsplit (':', ops + 1);
250		230
251	for (int i = 0; arr[i]; i++)	231	clamp_it (x, -100, 200);
252	{	232	clamp_it (y, -100, 200);
253	if (!strcasecmp (arr[i], "style=tiled"))
254	{
255	new_flags = BG_TILE;
256	w = h = noScale;
257	x = y = 0;
258	geom_flags = WidthValue|HeightValue|XValue|YValue;
259	}
260	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
261	{
262	new_flags = BG_PROP_SCALE;
263	x = y = centerAlign;
264	geom_flags = XValue|YValue;
265	}
266	else if (!strcasecmp (arr[i], "style=stretched"))
267	{
268	new_flags = 0;
269	w = h = windowScale;
270	geom_flags = WidthValue|HeightValue;
271	}
272	else if (!strcasecmp (arr[i], "style=centered"))
273	{
274	new_flags = 0;
275	w = h = noScale;
276	x = y = centerAlign;
277	geom_flags = WidthValue|HeightValue|XValue|YValue;
278	}
279	else if (!strcasecmp (arr[i], "style=root-tiled"))
280	{
281	new_flags = BG_TILE|BG_ROOT_ALIGN;
282	w = h = noScale;
283	geom_flags = WidthValue|HeightValue;
284	}
285	else if (!strcasecmp (arr[i], "op=tile"))
286	new_flags |= BG_TILE;
287	else if (!strcasecmp (arr[i], "op=pscale"))
288	new_flags |= BG_PROP_SCALE;
289	else if (!strcasecmp (arr[i], "op=root"))
290	new_flags |= BG_ROOT_ALIGN;
291		233
292	// deprecated	234	if (flags != new_flags
293	else if (!strcasecmp (arr[i], "tile"))	235	|| h_scale != w
294	{	236	|| v_scale != h
295	new_flags |= BG_TILE;	237	|| h_align != x
296	w = h = noScale;	238	|| v_align != y)
297	geom_flags |= WidthValue|HeightValue;
298	}
299	else if (!strcasecmp (arr[i], "propscale"))
300	{
301	new_flags |= BG_PROP_SCALE;
302	}
303	else if (!strcasecmp (arr[i], "hscale"))
304	{
305	w = windowScale;
306	h = noScale;
307	geom_flags |= WidthValue|HeightValue;
308	}
309	else if (!strcasecmp (arr[i], "vscale"))
310	{
311	h = windowScale;
312	w = noScale;
313	geom_flags |= WidthValue|HeightValue;
314	}
315	else if (!strcasecmp (arr[i], "scale"))
316	{
317	w = h = windowScale;
318	geom_flags |= WidthValue|HeightValue;
319	}
320	else if (!strcasecmp (arr[i], "auto"))
321	{
322	w = h = windowScale;
323	x = y = centerAlign;
324	geom_flags |= WidthValue|HeightValue|XValue|YValue;
325	}
326	else if (!strcasecmp (arr[i], "root"))
327	{
328	new_flags |= BG_TILE|BG_ROOT_ALIGN;
329	w = h = noScale;
330	geom_flags |= WidthValue|HeightValue;
331	}
332	} /* done parsing ops */
333
334	rxvt_free_strsplit (arr);
335	}	239	{
336
337	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
338	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
339	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
340	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
341
342	if (new_flags != bg_flags)
343	{
344	bg_flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
345	changed = true;	245	changed = true;
346	}	246	}
347		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
348	return changed;	253	return changed;
349	}	254	}
350		255
351	void	256	void
352	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)
353	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
354	int target_width = szHint.width;	261	int parent_width = szHint.width;
355	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);
356		265
357	if (bg_flags & BG_PROP_SCALE)	266	w = h_scale * parent_width / 100;
		267	h = v_scale * parent_height / 100;
		268
		269	if (image.flags & IM_KEEP_ASPECT)
358	{	270	{
359	float scale = (float)target_width / image_width;	271	float scale = (float)w / image_width;
360	min_it (scale, (float)target_height / image_height);	272	min_it (scale, (float)h / image_height);
361	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
362	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
363	}	275	}
364	else
365	{
366	w = h_scale * target_width / 100;
367	h = v_scale * target_height / 100;
368	}
369		276
370	if (!w) w = image_width;	277	if (!w) w = image_width;
371	if (!h) h = image_height;	278	if (!h) h = image_height;
372		279
373	if (bg_flags & BG_ROOT_ALIGN)	280	if (image.flags & IM_ROOT_ALIGN)
374	{	281	{
375	x = -target_x;	282	x = -parent_x;
376	y = -target_y;	283	y = -parent_y;
377	}	284	}
378	else	285	else
379	{	286	{
380	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
381	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
382	}
383
384	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
385	if (!(bg_flags & BG_TILE)
386	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
387	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
388	|| w > target_width || h > target_height)
389	bg_flags |= BG_IS_SIZE_SENSITIVE;
390	}
391
392	# ifdef HAVE_AFTERIMAGE
393	bool
394	rxvt_term::render_image (unsigned long tr_flags)
395	{
396	init_asv ();
397
398	ASImage *background = NULL;
399	ARGB32 background_tint = TINT_LEAVE_SAME;
400
401	# ifdef ENABLE_TRANSPARENCY
402	if (tr_flags)
403	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
404
405	if (tr_flags & BG_NEEDS_TINT)
406	{	289	}
407	ShadingInfo as_shade;	290	}
408	as_shade.shading = shade;
409		291
410	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	292	bool
411	if (bg_flags & BG_TINT_SET)	293	rxvt_term::render_image (rxvt_image &image)
412	tint.get (c);	294	{
413	as_shade.tintColor.red = c.r;
414	as_shade.tintColor.green = c.g;
415	as_shade.tintColor.blue = c.b;
416
417	background_tint = shading2tint32 (&as_shade);
418	}
419
420	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
421	{
422	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
423	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
424	100, ASIMAGE_QUALITY_DEFAULT);
425	if (tmp)
426	{
427	destroy_asimage (&background);
428	background = tmp;
429	}
430	}
431	# endif
432
433	ASImage *result = 0;
434
435	int target_width = szHint.width;	295	int parent_width = szHint.width;
436	int target_height = szHint.height;	296	int parent_height = szHint.height;
437	int new_pmap_width = target_width;
438	int new_pmap_height = target_height;
439		297
440	int x = 0;	298	int x = 0;
441	int y = 0;	299	int y = 0;
442	int w = 0;	300	int w = 0;
443	int h = 0;	301	int h = 0;
444		302
445	if (original_asim)	303	get_image_geometry (image, w, h, x, y);
446	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
447		304
448	if (!original_asim	305	if (!(image.flags & IM_ROOT_ALIGN)
449	|| (!(bg_flags & BG_ROOT_ALIGN)
450	&& (x >= target_width	306	&& (x >= parent_width
451	|| y >= target_height	307	|| y >= parent_height
452	|| (x + w <= 0)	308	|| x + w <= 0
453	|| (y + h <= 0))))	309	|| y + h <= 0))
454	{	310	return false;
455	if (background)
456	{
457	new_pmap_width = background->width;
458	new_pmap_height = background->height;
459	result = background;
460		311
461	if (background_tint != TINT_LEAVE_SAME)	312	rxvt_img *img = image.img->scale (w, h);
462	{	313
463	ASImage *tmp = tile_asimage (asv, background, 0, 0,	314	if (image.flags & IM_TILE)
464	target_width, target_height, background_tint,	315	img->repeat_mode (RepeatNormal);
465	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
466	if (tmp)
467	result = tmp;
468	}
469	}
470	else
471	new_pmap_width = new_pmap_height = 0;
472	}
473	else	316	else
474	{	317	img->repeat_mode (RepeatNone);
475	result = original_asim;	318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
476		319
477	if ((w != original_asim->width)	320	if (bg_img)
478	|| (h != original_asim->height))	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
479	{
480	result = scale_asimage (asv, original_asim,
481	w, h,
482	background ? ASA_ASImage : ASA_XImage,
483	100, ASIMAGE_QUALITY_DEFAULT);
484	}
485		322
486	if (background == NULL)	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
487	{	324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
488	if (bg_flags & BG_TILE)
489	{
490	/* if tiling - pixmap has to be sized exactly as the image,
491	but there is no need to make it bigger than the window! */
492	new_pmap_width = min (result->width, target_width);
493	new_pmap_height = min (result->height, target_height);
494		325
495	/* we also need to tile our image in both directions */	326	delete bg_img;
496	ASImage *tmp = tile_asimage (asv, result,	327	bg_img = img;
497	(int)result->width - x,
498	(int)result->height - y,
499	new_pmap_width,
500	new_pmap_height,
501	TINT_LEAVE_SAME, ASA_XImage,
502	100, ASIMAGE_QUALITY_DEFAULT);
503	if (tmp)
504	{
505	if (result != original_asim)
506	destroy_asimage (&result);
507		328
508	result = tmp;
509	}
510	}
511	}
512	else
513	{
514	/* if blending background and image - pixmap has to be sized same as target window */
515	ASImageLayer *layers = create_image_layers (2);
516
517	layers[0].im = background;
518	layers[0].clip_width = target_width;
519	layers[0].clip_height = target_height;
520	layers[0].tint = background_tint;
521	layers[1].im = result;
522
523	if (bg_flags & BG_TILE)
524	{
525	/* tile horizontally */
526	while (x > 0) x -= (int)result->width;
527	layers[1].dst_x = x;
528	layers[1].clip_width = result->width+target_width;
529	}
530	else
531	{
532	/* clip horizontally */
533	layers[1].dst_x = x;
534	layers[1].clip_width = result->width;
535	}
536
537	if (bg_flags & BG_TILE)
538	{
539	while (y > 0) y -= (int)result->height;
540	layers[1].dst_y = y;
541	layers[1].clip_height = result->height + target_height;
542	}
543	else
544	{
545	layers[1].dst_y = y;
546	layers[1].clip_height = result->height;
547	}
548
549	if (rs[Rs_blendtype])
550	{
551	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
552	if (layers[1].merge_scanlines == NULL)
553	layers[1].merge_scanlines = alphablend_scanlines;
554	}
555
556	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
557	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
558
559	if (tmp)
560	{
561	if (result != original_asim)
562	destroy_asimage (&result);
563
564	result = tmp;
565	}
566
567	free (layers);
568	}
569	}
570
571	bool ret = false;
572
573	if (result)
574	{
575	XGCValues gcv;
576	GC gc;
577
578	/* create Pixmap */
579	if (bg_pixmap == None
580	|| bg_pmap_width != new_pmap_width
581	|| bg_pmap_height != new_pmap_height)
582	{
583	if (bg_pixmap)
584	XFreePixmap (dpy, bg_pixmap);
585	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
586	bg_pmap_width = new_pmap_width;
587	bg_pmap_height = new_pmap_height;
588	}
589	/* fill with background color (if result's not completely overlapping it) */
590	gcv.foreground = pix_colors[Color_bg];
591	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
592
593	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
594	int dst_width = result->width, dst_height = result->height;
595	if (background == NULL)
596	{
597	if (!(bg_flags & BG_TILE))
598	{
599	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
600	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
601	}
602
603	if (dst_x > 0 || dst_y > 0
604	|| dst_x + dst_width < new_pmap_width
605	|| dst_y + dst_height < new_pmap_height)
606	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
607	}
608
609	/* put result on pixmap */
610	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
611	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
612
613	if (result != background && result != original_asim)
614	destroy_asimage (&result);
615
616	XFreeGC (dpy, gc);
617
618	ret = true;
619	}
620
621	if (background)
622	destroy_asimage (&background);
623
624	return ret;
625	}
626	# endif /* HAVE_AFTERIMAGE */
627
628	# ifdef HAVE_PIXBUF
629	bool
630	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
631	int src_x, int src_y, int dst_x, int dst_y,
632	unsigned int width, unsigned int height)
633	{
634	XImage *ximage;
635	char *data, *line;
636	int bytes_per_pixel;
637	int width_r, width_g, width_b;
638	int sh_r, sh_g, sh_b;
639	int rowstride;
640	int channels;
641	unsigned char *row;
642
643	if (visual->c_class != TrueColor)
644	return false;
645
646	if (depth == 24 || depth == 32)
647	bytes_per_pixel = 4;
648	else if (depth == 15 || depth == 16)
649	bytes_per_pixel = 2;
650	else
651	return false;
652
653	width_r = ecb_popcount32 (visual->red_mask);
654	width_g = ecb_popcount32 (visual->green_mask);
655	width_b = ecb_popcount32 (visual->blue_mask);
656
657	if (width_r > 8 || width_g > 8 || width_b > 8)
658	return false;
659
660	sh_r = ecb_ctz32 (visual->red_mask);
661	sh_g = ecb_ctz32 (visual->green_mask);
662	sh_b = ecb_ctz32 (visual->blue_mask);
663
664	if (width > INT_MAX / height / bytes_per_pixel)
665	return false;
666
667	data = (char *)malloc (width * height * bytes_per_pixel);
668	if (!data)
669	return false;
670
671	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
672	width, height, bytes_per_pixel * 8, 0);
673	if (!ximage)
674	{
675	free (data);
676	return false;
677	}
678
679	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
680
681	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
682	channels = gdk_pixbuf_get_n_channels (pixbuf);
683	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
684	line = data;
685
686	for (int y = 0; y < height; y++)
687	{
688	for (int x = 0; x < width; x++)
689	{
690	unsigned char *pixel = row + x * channels;
691	uint32_t value;
692
693	value = ((pixel[0] >> (8 - width_r)) << sh_r)
694	| ((pixel[1] >> (8 - width_g)) << sh_g)
695	| ((pixel[2] >> (8 - width_b)) << sh_b);
696
697	if (bytes_per_pixel == 4)
698	((uint32_t *)line)[x] = value;
699	else
700	((uint16_t *)line)[x] = value;
701	}
702
703	row += rowstride;
704	line += ximage->bytes_per_line;
705	}
706
707	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
708	XDestroyImage (ximage);
709	return true;	329	return true;
710	}	330	}
711		331
712	bool	332	rxvt_image::rxvt_image ()
713	rxvt_term::render_image (unsigned long tr_flags)
714	{	333	{
715	if (!pixbuf)	334	alpha = 0xffff;
716	return false;	335	flags = 0;
		336	h_scale =
		337	v_scale = defaultScale;
		338	h_align =
		339	v_align = defaultAlign;
717		340
718	if (tr_flags	341	img = 0;
719	&& !(bg_flags & BG_HAS_RENDER))
720	return false;
721
722	GdkPixbuf *result;
723
724	int image_width = gdk_pixbuf_get_width (pixbuf);
725	int image_height = gdk_pixbuf_get_height (pixbuf);
726
727	int target_width = szHint.width;
728	int target_height = szHint.height;
729	int new_pmap_width = target_width;
730	int new_pmap_height = target_height;
731
732	int x = 0;
733	int y = 0;
734	int w = 0;
735	int h = 0;
736
737	get_image_geometry (image_width, image_height, w, h, x, y);
738
739	if (!(bg_flags & BG_ROOT_ALIGN)
740	&& (x >= target_width
741	|| y >= target_height
742	|| (x + w <= 0)
743	|| (y + h <= 0)))
744	return false;
745
746	result = pixbuf;
747
748	if ((w != image_width)
749	|| (h != image_height))
750	{
751	result = gdk_pixbuf_scale_simple (pixbuf,
752	w, h,
753	GDK_INTERP_BILINEAR);
754	}
755
756	if (!result)
757	return false;
758
759	bool ret = false;
760
761	XGCValues gcv;
762	GC gc;
763	Pixmap root_pmap;
764
765	image_width = gdk_pixbuf_get_width (result);
766	image_height = gdk_pixbuf_get_height (result);
767
768	if (tr_flags)
769	{
770	root_pmap = bg_pixmap;
771	bg_pixmap = None;
772	}
773	else
774	{
775	if (bg_flags & BG_TILE)
776	{
777	new_pmap_width = min (image_width, target_width);
778	new_pmap_height = min (image_height, target_height);
779	}
780	}
781
782	if (bg_pixmap == None
783	|| bg_pmap_width != new_pmap_width
784	|| bg_pmap_height != new_pmap_height)
785	{
786	if (bg_pixmap)
787	XFreePixmap (dpy, bg_pixmap);
788	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
789	bg_pmap_width = new_pmap_width;
790	bg_pmap_height = new_pmap_height;
791	}
792
793	gcv.foreground = pix_colors[Color_bg];
794	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
795
796	if (gc)
797	{
798	if (bg_flags & BG_TILE)
799	{
800	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
801	pixbuf_to_pixmap (result, tile, gc,
802	0, 0,
803	0, 0,
804	image_width, image_height);
805
806	gcv.tile = tile;
807	gcv.fill_style = FillTiled;
808	gcv.ts_x_origin = x;
809	gcv.ts_y_origin = y;
810	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
811
812	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
813	XFreePixmap (dpy, tile);
814	}
815	else
816	{
817	int src_x, src_y, dst_x, dst_y;
818	int dst_width, dst_height;
819
820	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
821	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
822
823	if (dst_x > 0 || dst_y > 0
824	|| dst_x + dst_width < new_pmap_width
825	|| dst_y + dst_height < new_pmap_height)
826	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
827
828	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
829	pixbuf_to_pixmap (result, bg_pixmap, gc,
830	src_x, src_y,
831	dst_x, dst_y,
832	dst_width, dst_height);
833	}
834
835	#if XRENDER
836	if (tr_flags)
837	{
838	XRenderPictureAttributes pa;
839
840	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);
841	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
842
843	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
844	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
845
846	pa.repeat = True;
847	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
848	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
849	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
850	XFreePixmap (dpy, mask_pmap);
851
852	XRenderColor mask_c;
853
854	mask_c.alpha = 0x8000;
855	mask_c.red = 0;
856	mask_c.green = 0;
857	mask_c.blue = 0;
858	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
859	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
860
861	XRenderFreePicture (dpy, src);
862	XRenderFreePicture (dpy, dst);
863	XRenderFreePicture (dpy, mask);
864	}
865	#endif
866
867	XFreeGC (dpy, gc);
868
869	ret = true;
870	}
871
872	if (result != pixbuf)
873	g_object_unref (result);
874
875	if (tr_flags)
876	XFreePixmap (dpy, root_pmap);
877
878	return ret;
879	}	342	}
880	# endif /* HAVE_PIXBUF */
881		343
882	bool	344	void
883	rxvt_term::bg_set_file (const char *file)	345	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
884	{	346	{
885	if (!file || !*file)	347	if (!file || !*file)
886	return false;	348	return;
887		349
888	if (const char *p = strchr (file, ';'))	350	const char *p = strchr (file, ';');
		351
		352	if (p)
889	{	353	{
890	size_t len = p - file;	354	size_t len = p - file;
891	char *f = rxvt_temp_buf<char> (len + 1);	355	char *f = rxvt_temp_buf<char> (len + 1);
892	memcpy (f, file, len);	356	memcpy (f, file, len);
893	f[len] = '\0';	357	f[len] = '\0';
894	file = f;	358	file = f;
895	}	359	}
896		360
897	# ifdef HAVE_AFTERIMAGE	361	set_file (s, file);
898	if (!asimman)	362	alpha = 0x8000;
899	asimman = create_generic_imageman (rs[Rs_path]);	363	set_geometry (p ? p + 1 : "");
900	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	364	}
901	if (image)
902	{
903	if (original_asim)
904	safe_asimage_destroy (original_asim);
905	original_asim = image;
906	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
907	return true;
908	}
909	# endif
910		365
911	# ifdef HAVE_PIXBUF	366	void
912	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	367	rxvt_image::set_file (rxvt_screen *s, const char *file)
913	if (image)	368	{
914	{	369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
915	if (pixbuf)	370	delete img;
916	g_object_unref (pixbuf);	371	img = img2;
917	pixbuf = image;
918	bg_flags |= BG_IS_FROM_FILE;
919	return true;
920	}
921	# endif
922
923	return false;
924	}	372	}
925		373
926	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
927		375
928	# ifdef ENABLE_TRANSPARENCY
929	bool	376	bool
930	rxvt_term::bg_set_transparent ()	377	image_effects::set_blur (const char *geom)
931	{
932	if (!(bg_flags & BG_IS_TRANSPARENT))
933	{
934	bg_flags |= BG_IS_TRANSPARENT;
935	return true;
936	}
937
938	return false;
939	}
940
941	bool
942	rxvt_term::bg_set_blur (const char *geom)
943	{	378	{
944	bool changed = false;	379	bool changed = false;
945	unsigned int hr, vr;	380	unsigned int hr, vr;
946	int junk;	381	int junk;
947	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
964	{	399	{
965	changed = true;	400	changed = true;
966	v_blurRadius = vr;	401	v_blurRadius = vr;
967	}	402	}
968		403
969	if (v_blurRadius == 0 && h_blurRadius == 0)
970	bg_flags &= ~BG_NEEDS_BLUR;
971	else
972	bg_flags |= BG_NEEDS_BLUR;
973
974	return changed;	404	return changed;
975	}	405	}
976		406
977	void
978	rxvt_term::set_tint_shade_flags ()
979	{
980	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
981	bool has_shade = shade != 100;
982
983	bg_flags &= ~BG_TINT_FLAGS;
984
985	if (bg_flags & BG_TINT_SET)
986	{
987	tint.get (c);
988	if (!has_shade
989	&& (c.r <= 0x00ff || c.r >= 0xff00)
990	&& (c.g <= 0x00ff || c.g >= 0xff00)
991	&& (c.b <= 0x00ff || c.b >= 0xff00))
992	bg_flags |= BG_TINT_BITAND;
993	}
994
995	if (has_shade || (bg_flags & BG_TINT_SET))
996	bg_flags |= BG_NEEDS_TINT;
997	}
998
999	bool	407	bool
1000	rxvt_term::bg_set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
1001	{	409	{
1002	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	410	if (!tint_set || tint != new_tint)
1003	{	411	{
1004	tint = new_tint;	412	tint = new_tint;
1005	bg_flags |= BG_TINT_SET;	413	tint_set = true;
1006	set_tint_shade_flags ();	414
1007	return true;	415	return true;
1008	}	416	}
1009		417
1010	return false;	418	return false;
1011	}	419	}
1012		420
1013	bool	421	bool
1014	rxvt_term::bg_set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
1015	{	423	{
1016	int new_shade = (shade_str) ? atoi (shade_str) : 100;	424	int new_shade = atoi (shade_str);
1017		425
1018	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
1019	if (new_shade < 0)	427	if (new_shade < 0)
1020	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
1021		429
1022	if (new_shade != shade)	430	if (new_shade != shade)
1023	{	431	{
1024	shade = new_shade;	432	shade = new_shade;
1025	set_tint_shade_flags ();
1026	return true;	433	return true;
1027	}	434	}
1028		435
1029	return false;	436	return false;
1030	}	437	}
1031		438
1032	#if XRENDER	439	# if BG_IMAGE_FROM_ROOT
1033	static void
1034	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1035	{
1036	double sigma = radius / 2.0;
1037	double scale = sqrt (2.0 * M_PI) * sigma;
1038	double sum = 0.0;
1039
1040	for (int i = 0; i < width; i++)
1041	{
1042	double x = i - width / 2;
1043	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1044	sum += kernel[i];
1045	}
1046
1047	params[0] = XDoubleToFixed (width);
1048	params[1] = XDoubleToFixed (1);
1049
1050	for (int i = 0; i < width; i++)
1051	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1052	}
1053	#endif
1054
1055	bool
1056	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1057	{
1058	bool ret = false;
1059	#if XRENDER
1060	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1061	double *kernel = (double *)malloc (size * sizeof (double));
1062	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1063
1064	XRenderPictureAttributes pa;
1065	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1066
1067	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1068	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1069
1070	if (kernel && params)
1071	{
1072	if (h_blurRadius)
1073	{
1074	size = h_blurRadius * 2 + 1;
1075	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1076
1077	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1078	XRenderComposite (dpy,
1079	PictOpSrc,
1080	src,
1081	None,
1082	dst,
1083	0, 0,
1084	0, 0,
1085	0, 0,
1086	width, height);
1087	}
1088
1089	if (v_blurRadius)
1090	{
1091	size = v_blurRadius * 2 + 1;
1092	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1093	::swap (params[0], params[1]);
1094
1095	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1096	XRenderComposite (dpy,
1097	PictOpSrc,
1098	src,
1099	None,
1100	dst,
1101	0, 0,
1102	0, 0,
1103	0, 0,
1104	width, height);
1105	}
1106
1107	ret = true;
1108	}
1109
1110	free (kernel);
1111	free (params);
1112	XRenderFreePicture (dpy, src);
1113	XRenderFreePicture (dpy, dst);
1114	#endif
1115	return ret;
1116	}
1117
1118	bool
1119	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1120	{
1121	bool ret = false;
1122
1123	if (bg_flags & BG_TINT_BITAND)
1124	{
1125	XGCValues gcv;
1126	GC gc;
1127
1128	/* In this case we can tint image server-side getting significant
1129	* performance improvements, as we eliminate XImage transfer
1130	*/
1131	gcv.foreground = Pixel (tint);
1132	gcv.function = GXand;
1133	gcv.fill_style = FillSolid;
1134	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1135	if (gc)
1136	{
1137	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1138	ret = true;
1139	XFreeGC (dpy, gc);
1140	}
1141	}
1142	else
1143	{
1144	# if XRENDER
1145	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1146
1147	if (bg_flags & BG_TINT_SET)
1148	tint.get (c);
1149
1150	if (shade <= 100)
1151	{
1152	c.r = c.r * shade / 100;
1153	c.g = c.g * shade / 100;
1154	c.b = c.b * shade / 100;
1155	}
1156	else
1157	{
1158	c.r = c.r * (200 - shade) / 100;
1159	c.g = c.g * (200 - shade) / 100;
1160	c.b = c.b * (200 - shade) / 100;
1161	}
1162
1163	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1164	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1165	XRenderPictureAttributes pa;
1166
1167	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1168
1169	pa.repeat = True;
1170
1171	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1172	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1173	XFreePixmap (dpy, overlay_pmap);
1174
1175	pa.component_alpha = True;
1176	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1177	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1178	XFreePixmap (dpy, mask_pmap);
1179
1180	XRenderColor mask_c;
1181
1182	mask_c.alpha = 0xffff;
1183	mask_c.red =
1184	mask_c.green =
1185	mask_c.blue = 0;
1186	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1187
1188	mask_c.alpha = 0;
1189	mask_c.red = 0xffff - c.r;
1190	mask_c.green = 0xffff - c.g;
1191	mask_c.blue = 0xffff - c.b;
1192	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1193	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1194
1195	if (shade > 100)
1196	{
1197	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1198	mask_c.alpha = 0;
1199	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1200
1201	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1202	}
1203
1204	ret = true;
1205
1206	XRenderFreePicture (dpy, mask_pic);
1207	XRenderFreePicture (dpy, overlay_pic);
1208	XRenderFreePicture (dpy, back_pic);
1209	# endif
1210	}
1211
1212	return ret;
1213	}
1214
1215	/*	440	/*
1216	* 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
1217	* 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
1218	* our window.	443	* our window.
1219	*/	444	*/
1220	unsigned long	445	bool
1221	rxvt_term::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
1222	{	447	{
1223	unsigned long result = 0;
1224
1225	/* 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
1226	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
1227	*/	450	*/
1228	int screen = display->screen;	451	int screen = display->screen;
1229	int root_depth = DefaultDepth (dpy, screen);
1230	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
1231	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
1232	unsigned int root_pmap_width, root_pmap_height;
1233	int window_width = szHint.width;	454	int parent_width = szHint.width;
1234	int window_height = szHint.height;	455	int parent_height = szHint.height;
1235	int sx, sy;	456	int sx, sy;
1236	XGCValues gcv;
1237	GC gc;
1238		457
1239	sx = target_x;	458	sx = parent_x;
1240	sy = target_y;	459	sy = parent_y;
1241		460
1242	/* check if we are outside of the visible part of the virtual screen : */	461	/* check if we are outside of the visible part of the virtual screen : */
1243	if (sx + window_width <= 0 || sy + window_height <= 0	462	if (sx + parent_width <= 0 || sy + parent_height <= 0
1244	|| sx >= root_width || sy >= root_height)	463	|| sx >= root_width || sy >= root_height)
1245	return 0;	464	return 0;
1246		465
1247	// validate root pixmap and get its size	466	while (sx < 0) sx += root_img->w;
1248	if (root_pixmap != None)	467	while (sy < 0) sy += root_img->h;
1249	{
1250	Window wdummy;
1251	int idummy;
1252	unsigned int udummy;
1253		468
1254	allowedxerror = -1;	469	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1255		470
1256	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	471	if (root_effects.need_blur ())
1257	root_pixmap = None;	472	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1258		473
1259	allowedxerror = 0;	474	if (root_effects.need_tint ())
1260	}	475	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1261		476
1262	Pixmap recoded_root_pmap = root_pixmap;
1263
1264	if (root_pixmap != None && root_depth != depth)
1265	{
1266	#if XRENDER
1267	if (bg_flags & BG_HAS_RENDER)
1268	{
1269	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1270
1271	XRenderPictureAttributes pa;
1272
1273	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1274	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1275
1276	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	477	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1277	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	478	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1278		479
1279	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	480	delete bg_img;
		481	bg_img = img;
1280		482
1281	XRenderFreePicture (dpy, src);
1282	XRenderFreePicture (dpy, dst);
1283	}
1284	else
1285	#endif
1286	recoded_root_pmap = None;
1287	}
1288
1289	if (recoded_root_pmap == None)
1290	return 0;
1291
1292	if (bg_pixmap == None
1293	|| bg_pmap_width != window_width
1294	|| bg_pmap_height != window_height)
1295	{
1296	if (bg_pixmap)
1297	XFreePixmap (dpy, bg_pixmap);
1298	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1299	bg_pmap_width = window_width;
1300	bg_pmap_height = window_height;
1301	}
1302
1303	/* straightforward pixmap copy */
1304	while (sx < 0) sx += root_width;
1305	while (sy < 0) sy += root_height;
1306
1307	gcv.tile = recoded_root_pmap;
1308	gcv.fill_style = FillTiled;
1309	gcv.ts_x_origin = -sx;
1310	gcv.ts_y_origin = -sy;
1311	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1312
1313	if (gc)
1314	{
1315	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1316	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1317	XFreeGC (dpy, gc);
1318
1319	if (!(bg_flags & BG_CLIENT_RENDER))
1320	{
1321	if ((bg_flags & BG_NEEDS_BLUR)
1322	&& (bg_flags & BG_HAS_RENDER_CONV))
1323	{
1324	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1325	result &= ~BG_NEEDS_BLUR;
1326	}
1327	if ((bg_flags & BG_NEEDS_TINT)
1328	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1329	{
1330	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1331	result &= ~BG_NEEDS_TINT;
1332	}
1333	} /* server side rendering completed */
1334	}
1335
1336	if (recoded_root_pmap != root_pixmap)
1337	XFreePixmap (dpy, recoded_root_pmap);
1338
1339	return result;	483	return true;
1340	}	484	}
1341		485
1342	void	486	void
1343	rxvt_term::bg_set_root_pixmap ()	487	rxvt_term::bg_set_root_pixmap ()
1344	{	488	{
1345	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	489	delete root_img;
1346	if (new_root_pixmap == None)	490	root_img = rxvt_img::new_from_root (this);
1347	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1348
1349	root_pixmap = new_root_pixmap;
1350	}	491	}
1351	# endif /* ENABLE_TRANSPARENCY */	492	# endif /* BG_IMAGE_FROM_ROOT */
1352		493
1353	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	494	void
1354	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1355	# endif
1356
1357	bool
1358	rxvt_term::bg_render ()	495	rxvt_term::bg_render ()
1359	{	496	{
1360	unsigned long tr_flags = 0;	497	if (bg_flags & BG_INHIBIT_RENDER)
		498	return;
1361		499
1362	bg_invalidate ();	500	delete bg_img;
1363	# ifdef ENABLE_TRANSPARENCY	501	bg_img = 0;
		502	bg_flags = 0;
		503
		504	if (!mapped)
		505	return;
		506
		507	# if BG_IMAGE_FROM_ROOT
		508	if (root_img)
		509	if (render_root_image ())
1364	if (bg_flags & BG_IS_TRANSPARENT)	510	bg_flags |= BG_IS_TRANSPARENT;
1365	{
1366	/* we need to re-generate transparency pixmap in that case ! */
1367	tr_flags = make_transparency_pixmap ();
1368	if (tr_flags == 0)
1369	return false;
1370	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1371	bg_flags |= BG_IS_VALID;
1372	}
1373	# endif	511	# endif
1374		512
1375	# ifdef BG_IMAGE_FROM_FILE	513	# if BG_IMAGE_FROM_FILE
1376	if ((bg_flags & BG_IS_FROM_FILE)	514	if (fimage.img)
1377	|| (tr_flags & BG_EFFECTS_FLAGS))	515	render_image (fimage);
1378	{
1379	if (render_image (tr_flags))
1380	bg_flags |= BG_IS_VALID;
1381	}
1382	# endif	516	# endif
1383
1384	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1385	XImage *result = NULL;
1386
1387	if (tr_flags && !(bg_flags & BG_IS_VALID))
1388	{
1389	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1390	}
1391
1392	if (result)
1393	{
1394	/* our own client-side tinting */
1395	if (tr_flags & BG_NEEDS_TINT)
1396	{
1397	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1398	if (bg_flags & BG_TINT_SET)
1399	tint.get (c);
1400	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1401	}
1402
1403	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1404
1405	if (gc)
1406	{
1407	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1408
1409	XFreeGC (dpy, gc);
1410	bg_flags |= BG_IS_VALID;
1411	}
1412
1413	XDestroyImage (result);
1414	}
1415	# endif
1416
1417	if (!(bg_flags & BG_IS_VALID))
1418	{
1419	if (bg_pixmap != None)
1420	{
1421	XFreePixmap (dpy, bg_pixmap);
1422	bg_pixmap = None;
1423	}
1424	}
1425		517
1426	scr_recolour (false);	518	scr_recolour (false);
1427	bg_flags |= BG_NEEDS_REFRESH;	519	bg_flags |= BG_NEEDS_REFRESH;
1428		520
1429	bg_valid_since = ev::now ();	521	bg_valid_since = ev::now ();
1430
1431	return true;
1432	}	522	}
1433		523
1434	void	524	void
1435	rxvt_term::bg_init ()	525	rxvt_term::bg_init ()
1436	{	526	{
1437	#ifdef ENABLE_TRANSPARENCY	527	#if BG_IMAGE_FROM_ROOT
1438	shade = 100;	528	if (option (Opt_transparent))
		529	{
		530	if (rs [Rs_blurradius])
		531	root_effects.set_blur (rs [Rs_blurradius]);
		532
		533	if (ISSET_PIXCOLOR (Color_tint))
		534	root_effects.set_tint (pix_colors_focused [Color_tint]);
		535
		536	if (rs [Rs_shade])
		537	root_effects.set_shade (rs [Rs_shade]);
		538
		539	bg_set_root_pixmap ();
		540	XSelectInput (dpy, display->root, PropertyChangeMask);
		541	rootwin_ev.start (display, display->root);
		542	}
1439	#endif	543	#endif
1440		544
1441	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	545	#if BG_IMAGE_FROM_FILE
1442	#if XRENDER	546	if (rs[Rs_backgroundPixmap])
1443	int major, minor;
1444	if (XRenderQueryVersion (dpy, &major, &minor))
1445	bg_flags |= BG_HAS_RENDER;
1446	XFilters *filters = XRenderQueryFilters (dpy, vt);
1447	if (filters)
1448	{	547	{
1449	for (int i = 0; i < filters->nfilter; i++)	548	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1450	if (!strcmp (filters->filter[i], FilterConvolution))	549	if (!bg_window_position_sensitive ())
1451	bg_flags |= BG_HAS_RENDER_CONV;	550	update_background ();
1452
1453	XFree (filters);
1454	}	551	}
1455	#endif	552	#endif
1456	}	553	}
1457		554
		555	void
		556	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		557	{
		558	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		559
		560	if (tint_set)
		561	tint.get (c);
		562
		563	if (shade > 100)
		564	{
		565	c.r = c.r * (200 - shade) / 100;
		566	c.g = c.g * (200 - shade) / 100;
		567	c.b = c.b * (200 - shade) / 100;
		568	}
		569	else
		570	{
		571	c.r = c.r * shade / 100;
		572	c.g = c.g * shade / 100;
		573	c.b = c.b * shade / 100;
		574	}
		575
		576	img->contrast (c.r, c.g, c.b, c.a);
		577
		578	if (shade > 100)
		579	{
		580	c.a = 0xffff;
		581	c.r =
		582	c.g =
		583	c.b = 0xffff * (shade - 100) / 100;
		584	img->brightness (c.r, c.g, c.b, c.a);
		585	}
		586	}
		587
1458	#endif /* HAVE_BG_PIXMAP */	588	#endif /* HAVE_BG_PIXMAP */
1459
1460	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1461	/* taken from aterm-0.4.2 */
1462
1463	static void
1464	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1465	{
1466	int sh_r, sh_g, sh_b;
1467	uint32_t mask_r, mask_g, mask_b;
1468	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1469	rgba low;
1470	rgba high;
1471	int i;
1472	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1473
1474	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1475
1476	/* for convenience */
1477	mask_r = visual->red_mask;
1478	mask_g = visual->green_mask;
1479	mask_b = visual->blue_mask;
1480
1481	/* boring lookup table pre-initialization */
1482	switch (ximage->depth)
1483	{
1484	case 15:
1485	if ((mask_r != 0x7c00) ||
1486	(mask_g != 0x03e0) ||
1487	(mask_b != 0x001f))
1488	return;
1489	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1490	lookup_r = lookup;
1491	lookup_g = lookup+32;
1492	lookup_b = lookup+32+32;
1493	sh_r = 10;
1494	sh_g = 5;
1495	sh_b = 0;
1496	break;
1497	case 16:
1498	if ((mask_r != 0xf800) ||
1499	(mask_g != 0x07e0) ||
1500	(mask_b != 0x001f))
1501	return;
1502	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1503	lookup_r = lookup;
1504	lookup_g = lookup+32;
1505	lookup_b = lookup+32+64;
1506	sh_r = 11;
1507	sh_g = 5;
1508	sh_b = 0;
1509	break;
1510	case 24:
1511	if ((mask_r != 0xff0000) ||
1512	(mask_g != 0x00ff00) ||
1513	(mask_b != 0x0000ff))
1514	return;
1515	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1516	lookup_r = lookup;
1517	lookup_g = lookup+256;
1518	lookup_b = lookup+256+256;
1519	sh_r = 16;
1520	sh_g = 8;
1521	sh_b = 0;
1522	break;
1523	case 32:
1524	if ((mask_r != 0xff0000) ||
1525	(mask_g != 0x00ff00) ||
1526	(mask_b != 0x0000ff))
1527	return;
1528	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1529	lookup_r = lookup;
1530	lookup_g = lookup+256;
1531	lookup_b = lookup+256+256;
1532	sh_r = 16;
1533	sh_g = 8;
1534	sh_b = 0;
1535	break;
1536	default:
1537	return; /* we do not support this color depth */
1538	}
1539
1540	/* prepare limits for color transformation (each channel is handled separately) */
1541	if (shade > 100)
1542	{
1543	shade = 200 - shade;
1544
1545	high.r = c.r * shade / 100;
1546	high.g = c.g * shade / 100;
1547	high.b = c.b * shade / 100;
1548
1549	low.r = 65535 * (100 - shade) / 100;
1550	low.g = 65535 * (100 - shade) / 100;
1551	low.b = 65535 * (100 - shade) / 100;
1552	}
1553	else
1554	{
1555	high.r = c.r * shade / 100;
1556	high.g = c.g * shade / 100;
1557	high.b = c.b * shade / 100;
1558
1559	low.r = low.g = low.b = 0;
1560	}
1561
1562	/* fill our lookup tables */
1563	for (i = 0; i <= mask_r>>sh_r; i++)
1564	{
1565	uint32_t tmp;
1566	tmp = i * high.r;
1567	tmp += (mask_r>>sh_r) * low.r;
1568	lookup_r[i] = (tmp/65535)<<sh_r;
1569	}
1570	for (i = 0; i <= mask_g>>sh_g; i++)
1571	{
1572	uint32_t tmp;
1573	tmp = i * high.g;
1574	tmp += (mask_g>>sh_g) * low.g;
1575	lookup_g[i] = (tmp/65535)<<sh_g;
1576	}
1577	for (i = 0; i <= mask_b>>sh_b; i++)
1578	{
1579	uint32_t tmp;
1580	tmp = i * high.b;
1581	tmp += (mask_b>>sh_b) * low.b;
1582	lookup_b[i] = (tmp/65535)<<sh_b;
1583	}
1584
1585	/* apply table to input image (replacing colors by newly calculated ones) */
1586	if (ximage->bits_per_pixel == 32
1587	&& (ximage->depth == 24 || ximage->depth == 32)
1588	&& ximage->byte_order == host_byte_order)
1589	{
1590	uint32_t *p1, *pf, *p, *pl;
1591	p1 = (uint32_t *) ximage->data;
1592	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1593
1594	while (p1 < pf)
1595	{
1596	p = p1;
1597	pl = p1 + ximage->width;
1598	for (; p < pl; p++)
1599	{
1600	*p = lookup_r[(*p & 0xff0000) >> 16] |
1601	lookup_g[(*p & 0x00ff00) >> 8] |
1602	lookup_b[(*p & 0x0000ff)] |
1603	(*p & 0xff000000);
1604	}
1605	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1606	}
1607	}
1608	else
1609	{
1610	for (int y = 0; y < ximage->height; y++)
1611	for (int x = 0; x < ximage->width; x++)
1612	{
1613	unsigned long pixel = XGetPixel (ximage, x, y);
1614	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1615	lookup_g[(pixel & mask_g) >> sh_g] |
1616	lookup_b[(pixel & mask_b) >> sh_b];
1617	XPutPixel (ximage, x, y, pixel);
1618	}
1619	}
1620
1621	free (lookup);
1622	}
1623	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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