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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.115 by sf-exg, Thu Nov 11 10:42:45 2010 UTC vs.
Revision 1.258 by root, Thu May 22 18:54:32 2014 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 <pcg@goof.com>	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 3 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
14	*	14	*
15	* This program is distributed in the hope that it will be useful,	15	* This program is distributed in the hope that it will be useful,
16	* but WITHOUT ANY WARRANTY; without even the implied warranty of	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
…		…
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	#define DO_TIMING_TEST 0
34
35	#if DO_TIMING_TEST
36	# include <sys/time.h>
37	#define TIMING_TEST_START(id) \
38	struct timeval timing_test_##id##_stv; \
39	gettimeofday (&timing_test_##id##_stv, NULL);
40
41	#define TIMING_TEST_PRINT_RESULT(id) \
42	do { \
43	struct timeval tv; \
44	gettimeofday (&tv, NULL); \
45	tv.tv_sec -= (timing_test_##id##_stv).tv_sec; \
46	fprintf (stderr, "%s: %s: %d: elapsed %ld usec\n", #id, __FILE__, __LINE__, \
47	tv.tv_sec * 1000000 + tv.tv_usec - (timing_test_##id##_stv).tv_usec); \
48	} while (0)
49
50	#else
51	#define TIMING_TEST_START(id) do {} while (0)
52	#define TIMING_TEST_PRINT_RESULT(id) do {} while (0)
53	#endif
54
55	/*
56	* Pixmap geometry string interpretation :
57	* Each geometry string contains zero or one scale/position
58	* adjustment and may optionally be followed by a colon and one or more
59	* colon-delimited pixmap operations.
60	* The following table shows the valid geometry strings and their
61	* effects on the background image :
62	*
63	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
64	* W and H are percentages of the terminal window size.
65	* X and Y are also percentages; e.g., +50+50 centers
66	* the image in the window.
67	* WxH+X Assumes Y == X
68	* WxH Assumes Y == X == 50 (centers the image)
69	* W+X+Y Assumes H == W
70	* W+X Assumes H == W and Y == X
71	* W Assumes H == W and Y == X == 50
72	*
73	* Adjusting position only :
74	* =+X+Y Set position to X% by Y% (absolute).
75	* =+X Set position to X% by X%.
76	* +X+Y Adjust position horizontally X% and vertically Y%
77	* from current position (relative).
78	* +X Adjust position horizontally X% and vertically X%
79	* from current position.
80	*
81	* Adjusting scale only :
82	* Wx0 Multiply horizontal scaling factor by W%
83	* 0xH Multiply vertical scaling factor by H%
84	* 0x0 No scaling (show image at normal size).
85	*
86	* Pixmap Operations : (should be prepended by a colon)
87	* tile Tile image. Scaling/position modifiers above will affect
88	* the tile size and origin.
89	* propscale When scaling, scale proportionally. That is, maintain the
90	* proper aspect ratio for the image. Any portion of the
91	* background not covered by the image is filled with the
92	* current background color.
93	* hscale Scale horizontally, tile vertically ?
94	* vscale Tile horizontally, scale vertically ?
95	* scale Scale both up and down
96	* auto Same as 100x100+50+50
97	*/
98
99	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
100	bgPixmap_t::bgPixmap_t ()	29
		30	void
		31	rxvt_term::bg_destroy ()
101	{	32	{
102	// this is basically redundant as bgPixmap_t is only used in	33	# if BG_IMAGE_FROM_ROOT
103	// zero_initialised-derived structs	34	delete root_img;
104	#ifdef HAVE_AFTERIMAGE	35	root_img = 0;
105	original_asim = NULL;
106	#endif	36	# endif
107	#ifdef HAVE_PIXBUF	37
108	pixbuf = NULL;	38	# if BG_IMAGE_FROM_FILE
		39	fimage.destroy ();
109	#endif	40	# endif
110	#ifdef BG_IMAGE_FROM_FILE
111	have_image = false;
112	h_scale = v_scale = 0;
113	h_align = v_align = 0;
114	#endif
115	#ifdef ENABLE_TRANSPARENCY
116	shade = 100;
117	#endif
118	flags = 0;
119	pixmap = None;
120	valid_since = invalid_since = 0;
121	target = 0;
122	}
123
124	void
125	bgPixmap_t::destroy ()
126	{
127	#ifdef HAVE_AFTERIMAGE
128	if (original_asim)
129	safe_asimage_destroy (original_asim);
130	#endif
131
132	#ifdef HAVE_PIXBUF
133	if (pixbuf)
134	g_object_unref (pixbuf);
135	#endif
136
137	if (pixmap && target)
138	XFreePixmap (target->dpy, pixmap);
139	}	41	}
140		42
141	bool	43	bool
142	bgPixmap_t::window_size_sensitive ()	44	rxvt_term::bg_window_size_sensitive ()
143	{	45	{
144	# ifdef ENABLE_TRANSPARENCY	46	# if BG_IMAGE_FROM_ROOT
145	if (flags & isTransparent)	47	if (root_img)
146	return true;	48	return true;
147	# endif	49	# endif
148		50
149	# ifdef BG_IMAGE_FROM_FILE	51	# if BG_IMAGE_FROM_FILE
150	if (have_image)	52	if (fimage.img)
151	{	53	{
152	if (flags & sizeSensitive)	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
153	return true;	57	return true;
154	}	58	}
155	# endif	59	# endif
156		60
157	return false;	61	return false;
158	}	62	}
159		63
160	bool	64	bool
161	bgPixmap_t::window_position_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
162	{	66	{
163	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
164	if (flags & isTransparent)	68	if (root_img)
165	return true;	69	return true;
166	# endif	70	# endif
167		71
168	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
169	if (have_image)	73	if (fimage.img)
170	{	74	{
171	if (flags & rootAlign)	75	if (fimage.flags & IM_ROOT_ALIGN)
172	return true;	76	return true;
173	}	77	}
174	# endif	78	# endif
175		79
176	return false;	80	return false;
177	};
178
179	bool bgPixmap_t::need_client_side_rendering ()
180	{
181	# ifdef HAVE_AFTERIMAGE
182	if (original_asim)
183	return true;
184	# endif
185	return false;
186	}	81	}
187		82
188	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
189	static inline bool
190	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
191	{
192	if (geom_flags & flag)
193	{
194	if (new_value > 1000)
195	new_value = 1000;
196	if (new_value != scale)
197	{
198	scale = new_value;
199	return true;
200	}
201	}
202	return false;
203	}
204
205	static inline bool
206	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
207	{
208	if (geom_flags & flag)
209	{
210	if (new_value < -100)
211	new_value = -100;
212	else if (new_value > 200)
213	new_value = 200;
214	if (new_value != align)
215	{
216	align = new_value;
217	return true;
218	}
219	}
220	return false;
221	}
222
223	static inline int	84	static inline int
224	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
225	{	86	{
226	int diff = window_size - image_size;
227	int smaller = min (image_size, window_size);
228
229	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
230	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
231	else if (align > 100 && align <= 200)	89	else if (align > 100)
232	return ((align - 100) * smaller / 100) + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
233	else if (align >= -100 && align < 0)	91	else
234	return ((align + 100) * smaller / 100) - image_size;	92	return lerp (-image_size, 0, align + 100);
235	return 0;
236	}	93	}
237		94
238	static inline int	95	static void
239	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)
240	{	97	{
241	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
242	dst_pos = pos;
243	dst_size = size;
244	if (pos < 0)
245	{
246	src_pos = -pos;
247	dst_pos = 0;
248	dst_size += pos;
249	}	99	{
250		100	flags = IM_TILE;
251	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
252	dst_size = target_size - dst_pos;	102	x = y = 0;
253	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	}
254	}	128	}
255		129
256	bool	130	bool
257	bgPixmap_t::set_geometry (const char *geom)	131	rxvt_image::set_geometry (const char *geom, bool update)
258	{	132	{
259	bool changed = false;	133	bool changed = false;
260	int geom_flags = 0;	134	int geom_flags = 0;
261	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
262	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
263	unsigned int n;	138	unsigned int h = v_scale;
264	unsigned long new_flags = (flags & (~geometryFlags));	139	uint8_t new_flags = 0;
265	const char *p;
266	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
267		140
268	if (geom == NULL)	141	if (geom == NULL)
269	return false;	142	return false;
270		143
271	char str[MAXLEN_GEOM];	144	if (geom[0])
272
273	while (isspace(*geom)) ++geom;
274	if ((p = strchr (geom, ';')) == NULL)
275	p = strchr (geom, '\0');
276
277	n = (p - geom);
278	if (n < MAXLEN_GEOM)
279	{	145	{
280	char *ops;	146	char **arr = rxvt_strsplit (':', geom);
281	new_flags |= geometrySet;
282		147
283	memcpy (str, geom, n);	148	for (int i = 0; arr[i]; i++)
284	str[n] = '\0';
285	if (str[0] == ':')
286	ops = &str[0];
287	else if (str[0] != 'x' && str[0] != 'X' && isalpha(str[0]))
288	ops = &str[0];
289	else
290	{	149	{
291	char *tmp;	150	if (!strncasecmp (arr[i], "style=", 6))
292	ops = strchr (str, ':');
293	if (ops != NULL)
294	{
295	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);
296	*(++tmp) = '\0';
297	if (ops == tmp) ++ops;
298	}	151	{
299	}	152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
300
301	if (ops > str || ops == NULL)
302	{
303	/* we have geometry string - let's handle it prior to applying ops */
304	geom_flags = XParseGeometry (str, &x, &y, &w, &h);
305
306	if ((geom_flags & XValue) && !(geom_flags & YValue))
307	{
308	y = x;
309	geom_flags |= YValue;
310	}
311
312	if (flags & geometrySet)
313	{
314	/* new geometry is an adjustment to the old one ! */
315	if ((geom_flags & WidthValue) && (geom_flags & HeightValue))
316	{
317	if (w == 0 && h != 0)
318	{
319	w = h_scale;
320	h = (v_scale * h) / 100;
321	}
322	else if (h == 0 && w != 0)
323	{
324	w = (h_scale * w) / 100;
325	h = v_scale;
326	}
327	}
328	if (geom_flags & XValue)
329	{
330	if (str[0] != '=')
331	{
332	y += v_align;
333	x += h_align;
334	}
335	}
336	}
337	else /* setting up geometry from scratch */
338	{
339	if (!(geom_flags & XValue))
340	{
341	/* use default geometry - centered */
342	x = y = defaultAlign;
343	}
344	else if (!(geom_flags & YValue))
345	y = x;
346
347	if ((geom_flags & (WidthValue|HeightValue)) == 0)
348	{
349	/* use default geometry - scaled */
350	w = h = defaultScale;
351	}
352	else if (geom_flags & WidthValue)
353	{
354	if (!(geom_flags & HeightValue))
355	h = w;
356	}
357	else
358	w = h;
359	}
360	} /* done parsing geometry string */
361	else if (!(flags & geometrySet))
362	{
363	/* default geometry - scaled and centered */
364	x = y = defaultAlign;
365	w = h = defaultScale;
366	}
367
368	if (!(flags & geometrySet))
369	geom_flags |= WidthValue|HeightValue|XValue|YValue;	153	geom_flags = WidthValue|HeightValue|XValue|YValue;
370
371	if (ops)
372	{
373	while (*ops)
374	{	154	}
375	while (*ops == ':' || isspace(*ops)) ++ops;	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;
376		161
377	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)	162	// deprecated
378	if (CHECK_GEOM_OPS ("tile"))	163	else if (!strcasecmp (arr[i], "tile"))
379	{	164	{
		165	new_flags |= IM_TILE;
380	w = h = noScale;	166	w = h = noScale;
381	geom_flags |= WidthValue|HeightValue;	167	geom_flags |= WidthValue|HeightValue;
382	}	168	}
383	else if (CHECK_GEOM_OPS ("propscale"))	169	else if (!strcasecmp (arr[i], "propscale"))
384	{	170	{
385	new_flags |= propScale;	171	new_flags |= IM_KEEP_ASPECT;
386	}
387	else if (CHECK_GEOM_OPS ("hscale"))
388	{
389	if (w == 0) w = windowScale;
390
391	h = noScale;	172	w = h = windowScale;
392	geom_flags |= WidthValue|HeightValue;	173	geom_flags |= WidthValue|HeightValue;
393	}	174	}
394	else if (CHECK_GEOM_OPS ("vscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
395	{	176	{
		177	new_flags |= IM_TILE;
396	if (h == 0) h = windowScale;	178	w = windowScale;
397
398	w = noScale;	179	h = noScale;
399	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
400	}	181	}
401	else if (CHECK_GEOM_OPS ("scale"))	182	else if (!strcasecmp (arr[i], "vscale"))
402	{	183	{
		184	new_flags |= IM_TILE;
403	if (h == 0) h = windowScale;	185	h = windowScale;
404	if (w == 0) w = windowScale;	186	w = noScale;
405
406	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
407	}	188	}
408	else if (CHECK_GEOM_OPS ("auto"))	189	else if (!strcasecmp (arr[i], "scale"))
409	{	190	{
410	w = h = windowScale;	191	w = h = windowScale;
		192	geom_flags |= WidthValue|HeightValue;
		193	}
		194	else if (!strcasecmp (arr[i], "auto"))
		195	{
		196	w = h = windowScale;
411	x = y = centerAlign;	197	x = y = centerAlign;
412	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
413	}	199	}
414	else if (CHECK_GEOM_OPS ("root"))	200	else if (!strcasecmp (arr[i], "root"))
415	{	201	{
416	new_flags |= rootAlign;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
417	w = h = noScale;	203	w = h = noScale;
418	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
419	}	205	}
420	# undef CHECK_GEOM_OPS
421		206
422	while (*ops != ':' && *ops != '\0') ++ops;	207	else
		208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
423	} /* done parsing ops */	209	} /* done parsing ops */
424	}
425		210
426	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;	211	rxvt_free_strsplit (arr);
427	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;	212	}
428	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;	213
429	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;	214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
		215
		216	if (!update)
430	}	217	{
		218	if (!(geom_flags & XValue))
		219	x = y = defaultAlign;
		220	else if (!(geom_flags & YValue))
		221	y = x;
431		222
432	if (new_flags != flags)	223	if (!(geom_flags & (WidthValue|HeightValue)))
		224	w = h = defaultScale;
		225	else if (!(geom_flags & HeightValue))
		226	h = w;
		227	else if (!(geom_flags & WidthValue))
		228	w = h;
		229	}
		230
		231	clamp_it (x, -100, 200);
		232	clamp_it (y, -100, 200);
		233
		234	if (flags != new_flags
		235	|| h_scale != w
		236	|| v_scale != h
		237	|| h_align != x
		238	|| v_align != y)
433	{	239	{
434	flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
435	changed = true;	245	changed = true;
436	}	246	}
437		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
438	return changed;	253	return changed;
439	}	254	}
440		255
441	void	256	void
442	bgPixmap_t::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	257	rxvt_term::render_image (rxvt_image &image)
443	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
444	int target_width = target->szHint.width;	261	int parent_width = szHint.width;
445	int target_height = target->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);
446		265
447	if (flags & propScale)	266	int w;
		267	int h;
		268	int x;
		269	int y;
		270
		271	w = h_scale * parent_width / 100;
		272	h = v_scale * parent_height / 100;
		273
		274	if (image.flags & IM_KEEP_ASPECT)
448	{	275	{
449	float scale = (float)target_width / image_width;	276	float scale = (float)w / image_width;
450	min_it (scale, (float)target_height / image_height);	277	min_it (scale, (float)h / image_height);
451	w = image_width * scale + 0.5;	278	w = image_width * scale + 0.5;
452	h = image_height * scale + 0.5;	279	h = image_height * scale + 0.5;
453	}	280	}
454	else
455	{
456	w = h_scale * target_width / 100;
457	h = v_scale * target_height / 100;
458	}
459		281
460	if (!w) w = image_width;	282	if (!w) w = image_width;
461	if (!h) h = image_height;	283	if (!h) h = image_height;
462		284
463	if (flags & rootAlign)	285	if (image.flags & IM_ROOT_ALIGN)
464	{	286	{
465	target->get_window_origin (x, y);
466	x = -x;	287	x = -parent_x;
467	y = -y;	288	y = -parent_y;
468	}	289	}
469	else	290	else
470	{	291	{
471	x = make_align_position (h_align, target_width, w);	292	x = make_align_position (image.h_align, parent_width, w);
472	y = make_align_position (v_align, target_height, h);	293	y = make_align_position (image.v_align, parent_height, h);
473	}
474
475	flags &= ~sizeSensitive;
476	if ((flags & propScale) || h_scale || v_scale
477	|| (!(flags & rootAlign) && (h_align || v_align))
478	|| w > target_width || h > target_height)
479	flags |= sizeSensitive;
480	}
481
482	# ifdef HAVE_AFTERIMAGE
483	bool
484	bgPixmap_t::render_image (unsigned long background_flags)
485	{
486	if (target == NULL)
487	return false;
488
489	target->init_asv ();
490
491	ASImage *background = NULL;
492	ARGB32 background_tint = TINT_LEAVE_SAME;
493
494	# ifdef ENABLE_TRANSPARENCY
495	if (background_flags)
496	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
497
498	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
499	{	294	}
500	ShadingInfo as_shade;
501	as_shade.shading = shade;
502		295
503	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	296	if (!(image.flags & IM_ROOT_ALIGN)
504	if (flags & tintSet)
505	tint.get (c);
506	as_shade.tintColor.red = c.r;
507	as_shade.tintColor.green = c.g;
508	as_shade.tintColor.blue = c.b;
509
510	background_tint = shading2tint32 (&as_shade);
511	}
512
513	if (!(background_flags & transpPmapBlurred) && (flags & blurNeeded) && background != NULL)
514	{
515	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
516	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
517	100, ASIMAGE_QUALITY_DEFAULT);
518	if (tmp)
519	{
520	destroy_asimage (&background);
521	background = tmp;
522	}
523	}
524	# endif
525
526	ASImage *result = 0;
527
528	int target_width = target->szHint.width;
529	int target_height = target->szHint.height;
530	int new_pmap_width = target_width;
531	int new_pmap_height = target_height;
532
533	int x = 0;
534	int y = 0;
535	int w = 0;
536	int h = 0;
537
538	if (original_asim)
539	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
540
541	if (!original_asim
542	|| (!(flags & rootAlign)
543	&& (x >= target_width	297	&& (x >= parent_width
544	|| y >= target_height	298	|| y >= parent_height
545	|| (x + w <= 0)	299	|| x + w <= 0
546	|| (y + h <= 0))))	300	|| y + h <= 0))
547	{	301	return;
548	if (background)
549	{
550	new_pmap_width = background->width;
551	new_pmap_height = background->height;
552	result = background;
553		302
554	if (background_tint != TINT_LEAVE_SAME)	303	rxvt_img *img = image.img->scale (w, h);
555	{	304
556	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	305	if (image.flags & IM_TILE)
557	target_width, target_height, background_tint,	306	img->repeat_mode (RepeatNormal);
558	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
559	if (tmp)
560	result = tmp;
561	}
562	}
563	else
564	new_pmap_width = new_pmap_height = 0;
565	}
566	else	307	else
567	{	308	img->repeat_mode (RepeatNone);
568	result = original_asim;	309	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
569		310
570	if ((w != original_asim->width)	311	if (bg_img)
571	|| (h != original_asim->height))	312	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
572	{
573	result = scale_asimage (target->asv, original_asim,
574	w, h,
575	background ? ASA_ASImage : ASA_XImage,
576	100, ASIMAGE_QUALITY_DEFAULT);
577	}
578		313
579	if (background == NULL)
580	{
581	if (h_scale == 0 || v_scale == 0)
582	{
583	/* if tiling - pixmap has to be sized exactly as the image,
584	but there is no need to make it bigger than the window! */
585	new_pmap_width = min (result->width, target_width);
586	new_pmap_height = min (result->height, target_height);
587
588	/* we also need to tile our image in both directions */
589	ASImage *tmp = tile_asimage (target->asv, result,
590	(int)result->width - x,
591	(int)result->height - y,
592	new_pmap_width,
593	new_pmap_height,
594	TINT_LEAVE_SAME, ASA_XImage,
595	100, ASIMAGE_QUALITY_DEFAULT);
596	if (tmp)
597	{
598	if (result != original_asim)
599	destroy_asimage (&result);
600
601	result = tmp;
602	}
603	}
604	}
605	else
606	{
607	/* if blending background and image - pixmap has to be sized same as target window */
608	ASImageLayer *layers = create_image_layers (2);
609
610	layers[0].im = background;
611	layers[0].clip_width = target_width;
612	layers[0].clip_height = target_height;
613	layers[0].tint = background_tint;
614	layers[1].im = result;
615
616	if (h_scale == 0 || v_scale == 0)
617	{
618	/* tile horizontally */
619	while (x > 0) x -= (int)result->width;
620	layers[1].dst_x = x;
621	layers[1].clip_width = result->width+target_width;
622	}
623	else
624	{
625	/* clip horizontally */
626	layers[1].dst_x = x;
627	layers[1].clip_width = result->width;
628	}
629
630	if (h_scale == 0 || v_scale == 0)
631	{
632	while (y > 0) y -= (int)result->height;
633	layers[1].dst_y = y;
634	layers[1].clip_height = result->height + target_height;
635	}
636	else
637	{
638	layers[1].dst_y = y;
639	layers[1].clip_height = result->height;
640	}
641
642	if (target->rs[Rs_blendtype])
643	{
644	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
645	if (layers[1].merge_scanlines == NULL)
646	layers[1].merge_scanlines = alphablend_scanlines;
647	}
648
649	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
650	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
651
652	if (tmp)
653	{
654	if (result != original_asim)
655	destroy_asimage (&result);
656
657	result = tmp;
658	}
659
660	free (layers);
661	}
662	}
663
664	bool ret = false;
665
666	if (result)
667	{
668	XGCValues gcv;
669	GC gc;
670
671	/* create Pixmap */
672	if (pixmap == None
673	|| pmap_width != new_pmap_width
674	|| pmap_height != new_pmap_height
675	|| pmap_depth != target->depth)
676	{
677	if (pixmap)
678	XFreePixmap (target->dpy, pixmap);
679	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
680	pmap_width = new_pmap_width;
681	pmap_height = new_pmap_height;
682	pmap_depth = target->depth;
683	}
684	/* fill with background color (if result's not completely overlapping it) */
685	gcv.foreground = target->pix_colors[Color_bg];
686	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
687
688	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
689	int dst_width = result->width, dst_height = result->height;
690	if (background == NULL)
691	{
692	if (!(h_scale == 0 || v_scale == 0))
693	{
694	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
695	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
696	}
697
698	if (dst_x > 0 || dst_y > 0
699	|| dst_x + dst_width < new_pmap_width
700	|| dst_y + dst_height < new_pmap_height)
701	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
702	}
703
704	/* put result on pixmap */
705	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
706	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
707
708	if (result != background && result != original_asim)
709	destroy_asimage (&result);
710
711	XFreeGC (target->dpy, gc);
712
713	ret = true;
714	}
715
716	if (background)
717	destroy_asimage (&background);
718
719	return ret;
720	}
721	# endif /* HAVE_AFTERIMAGE */
722
723	# ifdef HAVE_PIXBUF
724	bool
725	bgPixmap_t::render_image (unsigned long background_flags)
726	{
727	if (target == NULL)
728	return false;
729
730	if (!pixbuf)
731	return false;
732
733	if (background_flags
734	&& !(flags & HAS_RENDER))
735	return false;
736
737	GdkPixbuf *result;
738
739	int image_width = gdk_pixbuf_get_width (pixbuf);
740	int image_height = gdk_pixbuf_get_height (pixbuf);
741
742	int target_width = target->szHint.width;
743	int target_height = target->szHint.height;
744	int new_pmap_width = target_width;
745	int new_pmap_height = target_height;
746
747	int x = 0;
748	int y = 0;
749	int w = 0;
750	int h = 0;
751
752	get_image_geometry (image_width, image_height, w, h, x, y);
753
754	if (!(flags & rootAlign)
755	&& (x >= target_width
756	|| y >= target_height
757	|| (x + w <= 0)
758	|| (y + h <= 0)))
759	return false;
760
761	result = pixbuf;
762
763	if ((w != image_width)
764	|| (h != image_height))
765	{
766	result = gdk_pixbuf_scale_simple (pixbuf,
767	w, h,
768	GDK_INTERP_BILINEAR);
769	}
770
771	bool ret = false;
772
773	if (result)
774	{
775	XGCValues gcv;
776	GC gc;
777	Pixmap root_pmap;
778
779	image_width = gdk_pixbuf_get_width (result);
780	image_height = gdk_pixbuf_get_height (result);
781
782	if (background_flags)
783	{
784	root_pmap = pixmap;
785	pixmap = None;
786	}
787	else
788	{
789	if (h_scale == 0 || v_scale == 0)
790	{
791	new_pmap_width = min (image_width, target_width);
792	new_pmap_height = min (image_height, target_height);
793	}
794	}
795
796	if (pixmap == None
797	|| pmap_width != new_pmap_width
798	|| pmap_height != new_pmap_height
799	|| pmap_depth != target->depth)
800	{
801	if (pixmap)
802	XFreePixmap (target->dpy, pixmap);
803	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
804	pmap_width = new_pmap_width;
805	pmap_height = new_pmap_height;
806	pmap_depth = target->depth;
807	}
808
809	gcv.foreground = target->pix_colors[Color_bg];
810	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
811
812	if (h_scale == 0 || v_scale == 0)
813	{
814	Pixmap tile = XCreatePixmap (target->dpy, target->vt, image_width, image_height, target->depth);
815	gdk_pixbuf_xlib_render_to_drawable (result, tile, gc,
816	0, 0,
817	0, 0,
818	image_width, image_height,
819	XLIB_RGB_DITHER_NONE,
820	0, 0);
821
822	gcv.tile = tile;
823	gcv.fill_style = FillTiled;
824	gcv.ts_x_origin = x;
825	gcv.ts_y_origin = y;
826	XChangeGC (target->dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
827
828	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
829	XFreePixmap (target->dpy, tile);
830	}
831	else
832	{
833	int src_x, src_y, dst_x, dst_y;
834	int dst_width, dst_height;
835
836	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
837	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
838
839	if (dst_x > 0 || dst_y > 0
840	|| dst_x + dst_width < new_pmap_width
841	|| dst_y + dst_height < new_pmap_height)
842	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
843
844	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
845	gdk_pixbuf_xlib_render_to_drawable (result, pixmap, gc,
846	src_x, src_y,
847	dst_x, dst_y,
848	dst_width, dst_height,
849	XLIB_RGB_DITHER_NONE,
850	0, 0);
851	}
852
853	#if XRENDER
854	if (background_flags)
855	{
856	Display *dpy = target->dpy;
857	XRenderPictureAttributes pa;
858
859	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, target->visual);	314	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
860	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	315	img->convert_format (format, pix_colors [Color_bg])->replace (img);
861		316
862	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);	317	delete bg_img;
863	Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);	318	bg_img = img;
864
865	pa.repeat = True;
866	Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);
867	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
868	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
869	XFreePixmap (dpy, mask_pmap);
870
871	if (src && dst && mask)
872	{
873	XRenderColor mask_c;
874
875	mask_c.alpha = 0x8000;
876	mask_c.red = 0;
877	mask_c.green = 0;
878	mask_c.blue = 0;
879	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
880	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
881	}
882
883	XRenderFreePicture (dpy, src);
884	XRenderFreePicture (dpy, dst);
885	XRenderFreePicture (dpy, mask);
886
887	XFreePixmap (dpy, root_pmap);
888	}
889	#endif
890
891	if (result != pixbuf)
892	g_object_unref (result);
893
894	XFreeGC (target->dpy, gc);
895
896	ret = true;
897	}
898
899	return ret;
900	}	319	}
901	# endif /* HAVE_PIXBUF */
902		320
903	bool	321	rxvt_image::rxvt_image ()
904	bgPixmap_t::set_file (const char *file)	322	{
		323	alpha = 0xffff;
		324	flags = 0;
		325	h_scale =
		326	v_scale = defaultScale;
		327	h_align =
		328	v_align = defaultAlign;
		329
		330	img = 0;
		331	}
		332
		333	void
		334	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
905	{	335	{
906	if (!file || !*file)	336	if (!file || !*file)
907	return false;	337	return;
908		338
909	if (const char *p = strchr (file, ';'))	339	const char *p = strchr (file, ';');
		340
		341	if (p)
910	{	342	{
911	size_t len = p - file;	343	size_t len = p - file;
912	char *f = rxvt_temp_buf<char> (len + 1);	344	char *f = rxvt_temp_buf<char> (len + 1);
913	memcpy (f, file, len);	345	memcpy (f, file, len);
914	f[len] = '\0';	346	f[len] = '\0';
915	file = f;	347	file = f;
916	}	348	}
917		349
918	# ifdef HAVE_AFTERIMAGE	350	set_file (s, file);
919	if (!target->asimman)	351	alpha = 0x8000;
920	target->asimman = create_generic_imageman (target->rs[Rs_path]);	352	set_geometry (p ? p + 1 : "");
921	ASImage *image = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	353	}
922	if (image)
923	{
924	if (original_asim)
925	safe_asimage_destroy (original_asim);
926	original_asim = image;
927	have_image = true;
928	return true;
929	}
930	# endif
931		354
932	# ifdef HAVE_PIXBUF	355	void
933	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	356	rxvt_image::set_file (rxvt_screen *s, const char *file)
934	if (image)	357	{
935	{	358	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
936	if (pixbuf)	359	delete img;
937	g_object_unref (pixbuf);	360	img = img2;
938	pixbuf = image;
939	have_image = true;
940	return true;
941	}
942	# endif
943
944	return false;
945	}	361	}
946		362
947	# endif /* BG_IMAGE_FROM_FILE */	363	# endif /* BG_IMAGE_FROM_FILE */
948		364
949	# ifdef ENABLE_TRANSPARENCY
950	bool	365	bool
951	bgPixmap_t::set_transparent ()
952	{
953	if (!(flags & isTransparent))
954	{
955	flags |= isTransparent;
956	return true;
957	}
958
959	return false;
960	}
961
962	bool
963	bgPixmap_t::set_blur_radius (const char *geom)	366	image_effects::set_blur (const char *geom)
964	{	367	{
965	bool changed = false;	368	bool changed = false;
966	unsigned int hr, vr;	369	unsigned int hr, vr;
967	int junk;	370	int junk;
968	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	371	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
985	{	388	{
986	changed = true;	389	changed = true;
987	v_blurRadius = vr;	390	v_blurRadius = vr;
988	}	391	}
989		392
990	if (v_blurRadius == 0 && h_blurRadius == 0)
991	flags &= ~blurNeeded;
992	else
993	flags |= blurNeeded;
994
995	return changed;	393	return changed;
996	}	394	}
997		395
998	static inline unsigned long
999	compute_tint_shade_flags (rxvt_color *tint, int shade)
1000	{
1001	unsigned long flags = 0;
1002	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1003	bool has_shade = shade != 100;
1004
1005	if (tint)
1006	{
1007	tint->get (c);
1008	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)
1009	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)
1010	&& IS_COMPONENT_WHOLESOME (c.g)
1011	&& IS_COMPONENT_WHOLESOME (c.b))
1012	flags |= bgPixmap_t::tintWholesome;
1013	# undef IS_COMPONENT_WHOLESOME
1014	}
1015
1016	if (has_shade)
1017	flags |= bgPixmap_t::tintNeeded;
1018	else if (tint)
1019	{
1020	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)
1021	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))
1022	{
1023	flags |= bgPixmap_t::tintNeeded;
1024	}
1025	}
1026
1027	return flags;
1028	}
1029
1030	bool	396	bool
1031	bgPixmap_t::set_tint (rxvt_color &new_tint)	397	image_effects::set_tint (const rxvt_color &new_tint)
1032	{	398	{
1033	if (!(flags & tintSet) || tint != new_tint)	399	if (!tint_set || tint != new_tint)
1034	{	400	{
1035	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
1036	tint = new_tint;	401	tint = new_tint;
1037	flags = (flags & ~tintFlags) | new_flags | tintSet;	402	tint_set = true;
		403
1038	return true;	404	return true;
1039	}	405	}
1040		406
1041	return false;	407	return false;
1042	}	408	}
1043		409
1044	bool	410	bool
1045	bgPixmap_t::unset_tint ()
1046	{
1047	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
1048
1049	if (new_flags != (flags & tintFlags))
1050	{
1051	flags = (flags & ~tintFlags) | new_flags;
1052	return true;
1053	}
1054
1055	return false;
1056	}
1057
1058	bool
1059	bgPixmap_t::set_shade (const char *shade_str)	411	image_effects::set_shade (const char *shade_str)
1060	{	412	{
1061	int new_shade = (shade_str) ? atoi (shade_str) : 100;	413	int new_shade = atoi (shade_str);
1062		414
1063	clamp_it (new_shade, -100, 200);	415	clamp_it (new_shade, -100, 200);
1064	if (new_shade < 0)	416	if (new_shade < 0)
1065	new_shade = 200 - (100 + new_shade);	417	new_shade = 200 - (100 + new_shade);
1066		418
1067	if (new_shade != shade)	419	if (new_shade != shade)
1068	{	420	{
1069	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
1070	shade = new_shade;	421	shade = new_shade;
1071	flags = (flags & (~tintFlags | tintSet)) | new_flags;
1072	return true;	422	return true;
1073	}	423	}
1074		424
1075	return false;	425	return false;
1076	}	426	}
1077		427
1078	#if XRENDER	428	# if BG_IMAGE_FROM_ROOT
1079	static void	429	/*
1080	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1081	{
1082	double sigma = radius / 2.0;
1083	double scale = sqrt (2.0 * M_PI) * sigma;
1084	double sum = 0.0;
1085
1086	for (int i = 0; i < width; i++)
1087	{
1088	double x = i - width / 2;
1089	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1090	sum += kernel[i];
1091	}
1092
1093	params[0] = XDoubleToFixed (width);
1094	params[1] = XDoubleToFixed (1);
1095
1096	for (int i = 0; i < width; i++)
1097	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1098	}
1099	#endif
1100
1101	bool
1102	bgPixmap_t::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1103	{
1104	bool ret = false;
1105	#if XRENDER
1106	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1107	double *kernel = (double *)malloc (size * sizeof (double));
1108	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1109
1110	Display *dpy = target->dpy;
1111	XRenderPictureAttributes pa;
1112	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1113
1114	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1115	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1116
1117	if (kernel && params && src && dst)
1118	{
1119	if (h_blurRadius)
1120	{
1121	size = h_blurRadius * 2 + 1;
1122	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1123
1124	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1125	XRenderComposite (dpy,
1126	PictOpSrc,
1127	src,
1128	None,
1129	dst,
1130	0, 0,
1131	0, 0,
1132	0, 0,
1133	width, height);
1134	}
1135
1136	if (v_blurRadius)
1137	{
1138	size = v_blurRadius * 2 + 1;
1139	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1140	swap (params[0], params[1]);
1141
1142	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1143	XRenderComposite (dpy,
1144	PictOpSrc,
1145	src,
1146	None,
1147	dst,
1148	0, 0,
1149	0, 0,
1150	0, 0,
1151	width, height);
1152	}
1153
1154	ret = true;
1155	}
1156
1157	free (kernel);
1158	free (params);
1159	XRenderFreePicture (dpy, src);
1160	XRenderFreePicture (dpy, dst);
1161	#endif
1162	return ret;
1163	}
1164
1165	bool
1166	bgPixmap_t::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1167	{
1168	Display *dpy = target->dpy;
1169	bool ret = false;
1170
1171	if (flags & tintWholesome)
1172	{
1173	XGCValues gcv;
1174	GC gc;
1175
1176	/* In this case we can tint image server-side getting significant
1177	* performance improvements, as we eliminate XImage transfer
1178	*/
1179	gcv.foreground = Pixel (tint);
1180	gcv.function = GXand;
1181	gcv.fill_style = FillSolid;
1182	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1183	if (gc)
1184	{
1185	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1186	ret = true;
1187	XFreeGC (dpy, gc);
1188	}
1189	}
1190	else
1191	{
1192	# if XRENDER
1193	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1194
1195	if (flags & tintSet)
1196	tint.get (c);
1197
1198	if (shade <= 100)
1199	{
1200	c.r = (c.r * shade) / 100;
1201	c.g = (c.g * shade) / 100;
1202	c.b = (c.b * shade) / 100;
1203	}
1204	else
1205	{
1206	c.r = ((0xffff - c.r) * (200 - shade)) / 100;
1207	c.g = ((0xffff - c.g) * (200 - shade)) / 100;
1208	c.b = ((0xffff - c.b) * (200 - shade)) / 100;
1209	}
1210
1211	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1212	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1213	XRenderPictureAttributes pa;
1214
1215	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1216
1217	pa.repeat = True;
1218
1219	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1220	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1221	XFreePixmap (dpy, overlay_pmap);
1222
1223	pa.component_alpha = True;
1224	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1225	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1226	XFreePixmap (dpy, mask_pmap);
1227
1228	if (mask_pic && overlay_pic && back_pic)
1229	{
1230	XRenderColor mask_c;
1231
1232	memset (&mask_c, (shade > 100) ? 0xFF : 0x0, sizeof (mask_c));
1233	mask_c.alpha = 0xffff;
1234	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1235
1236	mask_c.alpha = 0;
1237	mask_c.red = 0xffff - c.r;
1238	mask_c.green = 0xffff - c.g;
1239	mask_c.blue = 0xffff - c.b;
1240	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1241	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1242	ret = true;
1243	}
1244
1245	XRenderFreePicture (dpy, mask_pic);
1246	XRenderFreePicture (dpy, overlay_pic);
1247	XRenderFreePicture (dpy, back_pic);
1248	# endif
1249	}
1250
1251	return ret;
1252	}
1253
1254	/* make_transparency_pixmap()
1255	* Builds a pixmap of the same size as the terminal window that contains	430	* Builds a pixmap of the same size as the terminal window that contains
1256	* the tiled portion of the root pixmap that is supposed to be covered by	431	* the tiled portion of the root pixmap that is supposed to be covered by
1257	* our window.	432	* our window.
1258	*/	433	*/
1259	unsigned long	434	void
1260	bgPixmap_t::make_transparency_pixmap ()	435	rxvt_term::render_root_image ()
1261	{	436	{
1262	unsigned long result = 0;
1263
1264	if (target == NULL)
1265	return 0;
1266
1267	/* root dimensions may change from call to call - but Display structure should	437	/* root dimensions may change from call to call - but Display structure should
1268	* be always up-to-date, so let's use it :	438	* be always up-to-date, so let's use it :
1269	*/	439	*/
1270	int screen = target->display->screen;	440	int screen = display->screen;
1271	Display *dpy = target->dpy;
1272	int root_depth = DefaultDepth (dpy, screen);
1273	int root_width = DisplayWidth (dpy, screen);	441	int root_width = DisplayWidth (dpy, screen);
1274	int root_height = DisplayHeight (dpy, screen);	442	int root_height = DisplayHeight (dpy, screen);
1275	unsigned int root_pmap_width, root_pmap_height;
1276	int window_width = target->szHint.width;	443	int parent_width = szHint.width;
1277	int window_height = target->szHint.height;	444	int parent_height = szHint.height;
1278	int sx, sy;	445	int sx, sy;
1279	XGCValues gcv;
1280	GC gc;
1281		446
1282	target->get_window_origin (sx, sy);	447	sx = parent_x;
		448	sy = parent_y;
1283		449
1284	/* check if we are outside of the visible part of the virtual screen : */	450	/* check if we are outside of the visible part of the virtual screen : */
1285	if (sx + window_width <= 0 || sy + window_height <= 0	451	if (sx + parent_width <= 0 || sy + parent_height <= 0
1286	|| sx >= root_width || sy >= root_height)	452	|| sx >= root_width || sy >= root_height)
1287	return 0;	453	return;
1288		454
1289	// validate root pixmap and get its size	455	while (sx < 0) sx += root_img->w;
1290	if (root_pixmap != None)	456	while (sy < 0) sy += root_img->h;
1291	{
1292	Window wdummy;
1293	int idummy;
1294	unsigned int udummy;
1295		457
1296	target->allowedxerror = -1;	458	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1297		459
1298	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	460	if (root_effects.need_blur ())
1299	root_pixmap = None;	461	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1300		462
1301	target->allowedxerror = 0;	463	if (root_effects.need_tint ())
1302	}	464	{
		465	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1303		466
1304	Pixmap recoded_root_pmap = root_pixmap;	467	if (root_effects.tint_set)
1305		468	root_effects.tint.get (c);
1306	if (root_pixmap != None && root_depth != target->depth)	469	rxvt_img::nv factor = root_effects.shade / 100. - 1.;
		470	img->shade (factor, c)->replace (img);
1307	{	471	}
1308	#if XRENDER
1309	if (flags & HAS_RENDER)
1310	{
1311	XRenderPictureAttributes pa;
1312		472
1313	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1314	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1315
1316	recoded_root_pmap = XCreatePixmap (dpy, target->vt, root_pmap_width, root_pmap_height, target->depth);
1317	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);	473	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1318	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	474	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1319		475
1320	if (src && dst)	476	delete bg_img;
1321	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	477	bg_img = img;
1322	else	478	}
1323	{	479	# endif /* BG_IMAGE_FROM_ROOT */
1324	XFreePixmap (dpy, recoded_root_pmap);
1325	root_pixmap = None;
1326	}
1327		480
1328	XRenderFreePicture (dpy, src);	481	void
1329	XRenderFreePicture (dpy, dst);	482	rxvt_term::bg_render ()
1330	}	483	{
1331	else	484	if (bg_flags & BG_INHIBIT_RENDER)
		485	return;
		486
		487	delete bg_img;
		488	bg_img = 0;
		489	bg_flags = 0;
		490
		491	if (!mapped)
		492	return;
		493
		494	# if BG_IMAGE_FROM_ROOT
		495	if (root_img)
		496	{
		497	render_root_image ();
		498	bg_flags |= BG_IS_TRANSPARENT;
		499	}
		500	# endif
		501
		502	# if BG_IMAGE_FROM_FILE
		503	if (fimage.img)
		504	render_image (fimage);
		505	# endif
		506
		507	scr_recolour (false);
		508	bg_flags |= BG_NEEDS_REFRESH;
		509
		510	bg_valid_since = ev::now ();
		511	}
		512
		513	void
		514	rxvt_term::bg_init ()
		515	{
		516	#if BG_IMAGE_FROM_ROOT
		517	if (option (Opt_transparent))
		518	{
		519	if (rs [Rs_blurradius])
		520	root_effects.set_blur (rs [Rs_blurradius]);
		521
		522	if (ISSET_PIXCOLOR (Color_tint))
		523	root_effects.set_tint (pix_colors_focused [Color_tint]);
		524
		525	if (rs [Rs_shade])
		526	root_effects.set_shade (rs [Rs_shade]);
		527
		528	rxvt_img::new_from_root (this)->replace (root_img);
		529	XSelectInput (dpy, display->root, PropertyChangeMask);
		530	rootwin_ev.start (display, display->root);
		531	}
1332	#endif	532	#endif
1333	root_pixmap = None;
1334	}
1335		533
1336	if (root_pixmap == None)
1337	return 0;
1338
1339	Pixmap tiled_root_pmap = XCreatePixmap (dpy, target->vt, window_width, window_height, target->depth);
1340
1341	if (tiled_root_pmap == None) /* something really bad happened - abort */
1342	return 0;
1343
1344	/* straightforward pixmap copy */
1345	gcv.tile = recoded_root_pmap;
1346	gcv.fill_style = FillTiled;
1347
1348	while (sx < 0) sx += (int)root_width;
1349	while (sy < 0) sy += (int)root_height;
1350
1351	gcv.ts_x_origin = -sx;
1352	gcv.ts_y_origin = -sy;
1353	gc = XCreateGC (dpy, target->vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1354
1355	if (gc)
1356	{
1357	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1358	result |= transpPmapTiled;
1359	XFreeGC (dpy, gc);
1360
1361	if (!need_client_side_rendering ())
1362	{
1363	if ((flags & blurNeeded)
1364	&& (flags & HAS_RENDER_CONV))
1365	{
1366	if (blur_pixmap (tiled_root_pmap, target->visual, window_width, window_height))
1367	result |= transpPmapBlurred;
1368	}
1369	if ((flags & tintNeeded)
1370	&& (flags & (tintWholesome | HAS_RENDER)))
1371	{
1372	if (tint_pixmap (tiled_root_pmap, target->visual, window_width, window_height))
1373	result |= transpPmapTinted;
1374	}
1375	} /* server side rendering completed */
1376
1377	if (pixmap)
1378	XFreePixmap (dpy, pixmap);
1379
1380	pixmap = tiled_root_pmap;
1381	pmap_width = window_width;
1382	pmap_height = window_height;
1383	pmap_depth = target->depth;
1384	}
1385	else
1386	XFreePixmap (dpy, tiled_root_pmap);
1387
1388	if (recoded_root_pmap != root_pixmap)
1389	XFreePixmap (dpy, recoded_root_pmap);
1390
1391	return result;
1392	}
1393
1394	void
1395	bgPixmap_t::set_root_pixmap ()
1396	{
1397	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1398	if (new_root_pixmap == None)
1399	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1400
1401	root_pixmap = new_root_pixmap;
1402	}
1403	# endif /* ENABLE_TRANSPARENCY */
1404
1405	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1406	static void ShadeXImage(Visual *visual, XImage *srcImage, int shade, const rgba &c);
1407	# endif
1408
1409	bool
1410	bgPixmap_t::render ()
1411	{
1412	unsigned long background_flags = 0;
1413
1414	if (target == NULL)
1415	return false;
1416
1417	invalidate ();
1418	# ifdef ENABLE_TRANSPARENCY
1419	if (flags & isTransparent)
1420	{
1421	/* we need to re-generate transparency pixmap in that case ! */
1422	background_flags = make_transparency_pixmap ();
1423	if (background_flags == 0)
1424	return false;
1425	else if ((background_flags & transpTransformations) == (flags & transpTransformations))
1426	flags = flags & ~isInvalid;
1427	}
1428	# endif
1429
1430	# ifdef BG_IMAGE_FROM_FILE	534	#if BG_IMAGE_FROM_FILE
1431	if (have_image	535	if (rs[Rs_backgroundPixmap])
1432	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1433	{
1434	if (render_image (background_flags))
1435	flags = flags & ~isInvalid;
1436	}	536	{
1437	# endif	537	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1438		538	if (!bg_window_position_sensitive ())
1439	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	539	update_background ();
1440	XImage *result = NULL;
1441
1442	if (background_flags && (flags & isInvalid))
1443	{
1444	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1445	}
1446
1447	if (result)
1448	{
1449	/* our own client-side tinting */
1450	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
1451	{
1452	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1453	if (flags & tintSet)
1454	tint.get (c);
1455	ShadeXImage (DefaultVisual (target->dpy, target->display->screen), result, shade, c);
1456	}
1457
1458	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1459
1460	if (gc)
1461	{
1462	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1463
1464	XFreeGC (target->dpy, gc);
1465	flags = flags & ~isInvalid;
1466	}
1467
1468	XDestroyImage (result);
1469	}
1470	# endif
1471
1472	if (flags & isInvalid)
1473	{
1474	if (pixmap != None)
1475	{
1476	XFreePixmap (target->dpy, pixmap);
1477	pixmap = None;
1478	}
1479	}
1480
1481	apply ();
1482
1483	valid_since = ev::now ();
1484
1485	return true;
1486	}
1487
1488	void
1489	bgPixmap_t::set_target (rxvt_term *new_target)
1490	{
1491	target = new_target;
1492
1493	flags &= ~(HAS_RENDER | HAS_RENDER_CONV);
1494	#if XRENDER
1495	int major, minor;
1496	if (XRenderQueryVersion (target->dpy, &major, &minor))
1497	flags |= HAS_RENDER;
1498	XFilters *filters = XRenderQueryFilters (target->dpy, target->vt);
1499	if (filters)
1500	{
1501	for (int i = 0; i < filters->nfilter; i++)
1502	if (!strcmp (filters->filter[i], FilterConvolution))
1503	flags |= HAS_RENDER_CONV;
1504
1505	XFree (filters);
1506	}	540	}
1507	#endif	541	#endif
1508	}	542	}
1509		543
1510	void
1511	bgPixmap_t::apply ()
1512	{
1513	if (target == NULL)
1514	return;
1515
1516	if (pixmap != None)
1517	{
1518	/* set target's background to pixmap */
1519	# ifdef ENABLE_TRANSPARENCY
1520	if (flags & isTransparent)
1521	{
1522	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1523	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1524
1525	if (target->scrollBar.win)
1526	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1527	}
1528	else
1529	# endif
1530	{
1531	/* force old pixmap dereference in case it was transparent before :*/
1532	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1533	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1534	/* do we also need to set scrollbar's background here ? */
1535
1536	if (target->scrollBar.win)
1537	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1538	}
1539	}
1540	else
1541	{
1542	/* set target background to a pixel */
1543	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1544	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);
1545	/* do we also need to set scrollbar's background here ? */
1546	if (target->scrollBar.win)
1547	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1548	}
1549
1550	/* don't want Expose on the parent or vt. It is better to use
1551	scr_touch or we get a great deal of flicker otherwise: */
1552	XClearWindow (target->dpy, target->parent[0]);
1553
1554	if (target->scrollBar.state && target->scrollBar.win)
1555	{
1556	target->scrollBar.state = STATE_IDLE;
1557	target->scrollBar.show (0);
1558	}
1559
1560	target->want_refresh = 1;
1561	flags |= hasChanged;
1562	}
1563
1564	#endif /* HAVE_BG_PIXMAP */	544	#endif /* HAVE_BG_PIXMAP */
1565
1566	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1567	/* taken from aterm-0.4.2 */
1568
1569	static void
1570	ShadeXImage(Visual *visual, XImage *srcImage, int shade, const rgba &c)
1571	{
1572	int sh_r, sh_g, sh_b;
1573	uint32_t mask_r, mask_g, mask_b;
1574	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1575	rgba low;
1576	rgba high;
1577	int i;
1578	int host_byte_order = byteorder.big_endian () ? MSBFirst : LSBFirst;
1579
1580	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return;
1581
1582	/* for convenience */
1583	mask_r = visual->red_mask;
1584	mask_g = visual->green_mask;
1585	mask_b = visual->blue_mask;
1586
1587	/* boring lookup table pre-initialization */
1588	switch (srcImage->depth)
1589	{
1590	case 15:
1591	if ((mask_r != 0x7c00) ||
1592	(mask_g != 0x03e0) ||
1593	(mask_b != 0x001f))
1594	return;
1595	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1596	lookup_r = lookup;
1597	lookup_g = lookup+32;
1598	lookup_b = lookup+32+32;
1599	sh_r = 10;
1600	sh_g = 5;
1601	sh_b = 0;
1602	break;
1603	case 16:
1604	if ((mask_r != 0xf800) ||
1605	(mask_g != 0x07e0) ||
1606	(mask_b != 0x001f))
1607	return;
1608	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1609	lookup_r = lookup;
1610	lookup_g = lookup+32;
1611	lookup_b = lookup+32+64;
1612	sh_r = 11;
1613	sh_g = 5;
1614	sh_b = 0;
1615	break;
1616	case 24:
1617	if ((mask_r != 0xff0000) ||
1618	(mask_g != 0x00ff00) ||
1619	(mask_b != 0x0000ff))
1620	return;
1621	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1622	lookup_r = lookup;
1623	lookup_g = lookup+256;
1624	lookup_b = lookup+256+256;
1625	sh_r = 16;
1626	sh_g = 8;
1627	sh_b = 0;
1628	break;
1629	case 32:
1630	if ((mask_r != 0xff0000) ||
1631	(mask_g != 0x00ff00) ||
1632	(mask_b != 0x0000ff))
1633	return;
1634	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1635	lookup_r = lookup;
1636	lookup_g = lookup+256;
1637	lookup_b = lookup+256+256;
1638	sh_r = 16;
1639	sh_g = 8;
1640	sh_b = 0;
1641	break;
1642	default:
1643	return; /* we do not support this color depth */
1644	}
1645
1646	/* prepare limits for color transformation (each channel is handled separately) */
1647	if (shade > 100)
1648	{
1649	shade = 200 - shade;
1650
1651	high.r = (65535 - c.r) * shade / 100;
1652	high.g = (65535 - c.g) * shade / 100;
1653	high.b = (65535 - c.b) * shade / 100;
1654
1655	low.r = 65535 - high.r;
1656	low.g = 65535 - high.g;
1657	low.b = 65535 - high.b;
1658	}
1659	else
1660	{
1661	high.r = c.r * shade / 100;
1662	high.g = c.g * shade / 100;
1663	high.b = c.b * shade / 100;
1664
1665	low.r = low.g = low.b = 0;
1666	}
1667
1668	/* fill our lookup tables */
1669	for (i = 0; i <= mask_r>>sh_r; i++)
1670	{
1671	uint32_t tmp;
1672	tmp = i * high.r;
1673	tmp += (mask_r>>sh_r) * low.r;
1674	lookup_r[i] = (tmp/65535)<<sh_r;
1675	}
1676	for (i = 0; i <= mask_g>>sh_g; i++)
1677	{
1678	uint32_t tmp;
1679	tmp = i * high.g;
1680	tmp += (mask_g>>sh_g) * low.g;
1681	lookup_g[i] = (tmp/65535)<<sh_g;
1682	}
1683	for (i = 0; i <= mask_b>>sh_b; i++)
1684	{
1685	uint32_t tmp;
1686	tmp = i * high.b;
1687	tmp += (mask_b>>sh_b) * low.b;
1688	lookup_b[i] = (tmp/65535)<<sh_b;
1689	}
1690
1691	/* apply table to input image (replacing colors by newly calculated ones) */
1692	if (srcImage->bits_per_pixel == 32
1693	&& (srcImage->depth == 24 || srcImage->depth == 32)
1694	&& srcImage->byte_order == host_byte_order)
1695	{
1696	uint32_t *p1, *pf, *p, *pl;
1697	p1 = (uint32_t *) srcImage->data;
1698	pf = (uint32_t *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1699
1700	while (p1 < pf)
1701	{
1702	p = p1;
1703	pl = p1 + srcImage->width;
1704	for (; p < pl; p++)
1705	{
1706	*p = lookup_r[(*p & 0xff0000) >> 16] |
1707	lookup_g[(*p & 0x00ff00) >> 8] |
1708	lookup_b[(*p & 0x0000ff)] |
1709	(*p & 0xff000000);
1710	}
1711	p1 = (uint32_t *) ((char *) p1 + srcImage->bytes_per_line);
1712	}
1713	}
1714	else
1715	{
1716	for (int y = 0; y < srcImage->height; y++)
1717	for (int x = 0; x < srcImage->width; x++)
1718	{
1719	unsigned long pixel = XGetPixel (srcImage, x, y);
1720	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1721	lookup_g[(pixel & mask_g) >> sh_g] |
1722	lookup_b[(pixel & mask_b) >> sh_b];
1723	XPutPixel (srcImage, x, y, pixel);
1724	}
1725	}
1726
1727	free (lookup);
1728	}
1729	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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