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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.118 by sf-exg, Tue Nov 16 15:49:56 2010 UTC vs.
Revision 1.256 by sf-exg, Mon Dec 31 12:05:46 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 <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 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	#define DO_TIMING_TEST 0
38
39	#if DO_TIMING_TEST
40	# include <sys/time.h>
41	#define TIMING_TEST_START(id) \
42	struct timeval timing_test_##id##_stv; \
43	gettimeofday (&timing_test_##id##_stv, NULL);
44
45	#define TIMING_TEST_PRINT_RESULT(id) \
46	do { \
47	struct timeval tv; \
48	gettimeofday (&tv, NULL); \
49	tv.tv_sec -= (timing_test_##id##_stv).tv_sec; \
50	fprintf (stderr, "%s: %s: %d: elapsed %ld usec\n", #id, __FILE__, __LINE__, \
51	tv.tv_sec * 1000000 + tv.tv_usec - (timing_test_##id##_stv).tv_usec); \
52	} while (0)
53
54	#else
55	#define TIMING_TEST_START(id) do {} while (0)
56	#define TIMING_TEST_PRINT_RESULT(id) do {} while (0)
57	#endif
58
59	/*
60	* Pixmap geometry string interpretation :
61	* Each geometry string contains zero or one scale/position
62	* adjustment and may optionally be followed by a colon and one or more
63	* colon-delimited pixmap operations.
64	* The following table shows the valid geometry strings and their
65	* effects on the background image :
66	*
67	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
68	* W and H are percentages of the terminal window size.
69	* X and Y are also percentages; e.g., +50+50 centers
70	* the image in the window.
71	* WxH+X Assumes Y == X
72	* WxH Assumes Y == X == 50 (centers the image)
73	* W+X+Y Assumes H == W
74	* W+X Assumes H == W and Y == X
75	* W Assumes H == W and Y == X == 50
76	*
77	* Adjusting position only :
78	* =+X+Y Set position to X% by Y% (absolute).
79	* =+X Set position to X% by X%.
80	* +X+Y Adjust position horizontally X% and vertically Y%
81	* from current position (relative).
82	* +X Adjust position horizontally X% and vertically X%
83	* from current position.
84	*
85	* Adjusting scale only :
86	* Wx0 Multiply horizontal scaling factor by W%
87	* 0xH Multiply vertical scaling factor by H%
88	* 0x0 No scaling (show image at normal size).
89	*
90	* Pixmap Operations : (should be prepended by a colon)
91	* tile Tile image. Scaling/position modifiers above will affect
92	* the tile size and origin.
93	* propscale When scaling, scale proportionally. That is, maintain the
94	* proper aspect ratio for the image. Any portion of the
95	* background not covered by the image is filled with the
96	* current background color.
97	* hscale Scale horizontally, tile vertically ?
98	* vscale Tile horizontally, scale vertically ?
99	* scale Scale both up and down
100	* auto Same as 100x100+50+50
101	*/
102
103	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
104	bgPixmap_t::bgPixmap_t ()	29
		30	void
		31	rxvt_term::bg_destroy ()
105	{	32	{
106	// this is basically redundant as bgPixmap_t is only used in	33	# if BG_IMAGE_FROM_ROOT
107	// zero_initialised-derived structs	34	delete root_img;
108	#ifdef HAVE_AFTERIMAGE	35	root_img = 0;
109	original_asim = NULL;
110	#endif	36	# endif
111	#ifdef HAVE_PIXBUF	37
112	pixbuf = NULL;	38	# if BG_IMAGE_FROM_FILE
		39	fimage.destroy ();
113	#endif	40	# endif
114	#ifdef BG_IMAGE_FROM_FILE
115	have_image = false;
116	h_scale = v_scale = 0;
117	h_align = v_align = 0;
118	#endif
119	#ifdef ENABLE_TRANSPARENCY
120	shade = 100;
121	#endif
122	flags = 0;
123	pixmap = None;
124	valid_since = invalid_since = 0;
125	target = 0;
126	}
127
128	void
129	bgPixmap_t::destroy ()
130	{
131	#ifdef HAVE_AFTERIMAGE
132	if (original_asim)
133	safe_asimage_destroy (original_asim);
134	#endif
135
136	#ifdef HAVE_PIXBUF
137	if (pixbuf)
138	g_object_unref (pixbuf);
139	#endif
140
141	if (pixmap && target)
142	XFreePixmap (target->dpy, pixmap);
143	}	41	}
144		42
145	bool	43	bool
146	bgPixmap_t::window_size_sensitive ()	44	rxvt_term::bg_window_size_sensitive ()
147	{	45	{
148	# ifdef ENABLE_TRANSPARENCY	46	# if BG_IMAGE_FROM_ROOT
149	if (flags & isTransparent)	47	if (root_img)
150	return true;	48	return true;
151	# endif	49	# endif
152		50
153	# ifdef BG_IMAGE_FROM_FILE	51	# if BG_IMAGE_FROM_FILE
154	if (have_image)	52	if (fimage.img)
155	{	53	{
156	if (flags & sizeSensitive)	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
157	return true;	57	return true;
158	}	58	}
159	# endif	59	# endif
160		60
161	return false;	61	return false;
162	}	62	}
163		63
164	bool	64	bool
165	bgPixmap_t::window_position_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
166	{	66	{
167	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
168	if (flags & isTransparent)	68	if (root_img)
169	return true;	69	return true;
170	# endif	70	# endif
171		71
172	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
173	if (have_image)	73	if (fimage.img)
174	{	74	{
175	if (flags & rootAlign)	75	if (fimage.flags & IM_ROOT_ALIGN)
176	return true;	76	return true;
177	}	77	}
178	# endif	78	# endif
179		79
180	return false;	80	return false;
181	}	81	}
182		82
183	bool bgPixmap_t::need_client_side_rendering ()
184	{
185	# ifdef HAVE_AFTERIMAGE
186	if (original_asim)
187	return true;
188	# endif
189	return false;
190	}
191
192	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
193	static inline bool
194	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
195	{
196	if (geom_flags & flag)
197	{
198	if (new_value > 1000)
199	new_value = 1000;
200	if (new_value != scale)
201	{
202	scale = new_value;
203	return true;
204	}
205	}
206	return false;
207	}
208
209	static inline bool
210	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
211	{
212	if (geom_flags & flag)
213	{
214	if (new_value < -100)
215	new_value = -100;
216	else if (new_value > 200)
217	new_value = 200;
218	if (new_value != align)
219	{
220	align = new_value;
221	return true;
222	}
223	}
224	return false;
225	}
226
227	static inline int	84	static inline int
228	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
229	{	86	{
230	int diff = window_size - image_size;
231	int smaller = min (image_size, window_size);
232
233	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
234	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
235	else if (align > 100 && align <= 200)	89	else if (align > 100)
236	return ((align - 100) * smaller / 100) + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
237	else if (align >= -100 && align < 0)	91	else
238	return ((align + 100) * smaller / 100) - image_size;	92	return lerp (-image_size, 0, align + 100);
239	return 0;
240	}	93	}
241		94
242	static inline int	95	static void
243	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)
244	{	97	{
245	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
246	dst_pos = pos;
247	dst_size = size;
248	if (pos < 0)
249	{
250	src_pos = -pos;
251	dst_pos = 0;
252	dst_size += pos;
253	}	99	{
254		100	flags = IM_TILE;
255	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
256	dst_size = target_size - dst_pos;	102	x = y = 0;
257	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	}
258	}	128	}
259		129
260	bool	130	bool
261	bgPixmap_t::set_geometry (const char *geom)	131	rxvt_image::set_geometry (const char *geom, bool update)
262	{	132	{
263	bool changed = false;	133	bool changed = false;
264	int geom_flags = 0;	134	int geom_flags = 0;
265	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
266	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
267	unsigned int n;	138	unsigned int h = v_scale;
268	unsigned long new_flags = (flags & (~geometryFlags));	139	uint8_t new_flags = 0;
269	const char *p;
270	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
271		140
272	if (geom == NULL)	141	if (geom == NULL)
273	return false;	142	return false;
274		143
275	char str[MAXLEN_GEOM];	144	if (geom[0])
276
277	while (isspace(*geom)) ++geom;
278	if ((p = strchr (geom, ';')) == NULL)
279	p = strchr (geom, '\0');
280
281	n = (p - geom);
282	if (n < MAXLEN_GEOM)
283	{	145	{
284	char *ops;	146	char **arr = rxvt_strsplit (':', geom);
285	new_flags |= geometrySet;
286		147
287	memcpy (str, geom, n);	148	for (int i = 0; arr[i]; i++)
288	str[n] = '\0';
289	if (str[0] == ':')
290	ops = &str[0];
291	else if (str[0] != 'x' && str[0] != 'X' && isalpha(str[0]))
292	ops = &str[0];
293	else
294	{	149	{
295	char *tmp;	150	if (!strncasecmp (arr[i], "style=", 6))
296	ops = strchr (str, ':');
297	if (ops != NULL)
298	{
299	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);
300	*(++tmp) = '\0';
301	if (ops == tmp) ++ops;
302	}	151	{
303	}	152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
304
305	if (ops > str || ops == NULL)
306	{
307	/* we have geometry string - let's handle it prior to applying ops */
308	geom_flags = XParseGeometry (str, &x, &y, &w, &h);
309
310	if ((geom_flags & XValue) && !(geom_flags & YValue))
311	{
312	y = x;
313	geom_flags |= YValue;
314	}
315
316	if (flags & geometrySet)
317	{
318	/* new geometry is an adjustment to the old one ! */
319	if ((geom_flags & WidthValue) && (geom_flags & HeightValue))
320	{
321	if (w == 0 && h != 0)
322	{
323	w = h_scale;
324	h = (v_scale * h) / 100;
325	}
326	else if (h == 0 && w != 0)
327	{
328	w = (h_scale * w) / 100;
329	h = v_scale;
330	}
331	}
332	if (geom_flags & XValue)
333	{
334	if (str[0] != '=')
335	{
336	y += v_align;
337	x += h_align;
338	}
339	}
340	}
341	else /* setting up geometry from scratch */
342	{
343	if (!(geom_flags & XValue))
344	{
345	/* use default geometry - centered */
346	x = y = defaultAlign;
347	}
348	else if (!(geom_flags & YValue))
349	y = x;
350
351	if ((geom_flags & (WidthValue|HeightValue)) == 0)
352	{
353	/* use default geometry - scaled */
354	w = h = defaultScale;
355	}
356	else if (geom_flags & WidthValue)
357	{
358	if (!(geom_flags & HeightValue))
359	h = w;
360	}
361	else
362	w = h;
363	}
364	} /* done parsing geometry string */
365	else if (!(flags & geometrySet))
366	{
367	/* default geometry - scaled and centered */
368	x = y = defaultAlign;
369	w = h = defaultScale;
370	}
371
372	if (!(flags & geometrySet))
373	geom_flags |= WidthValue|HeightValue|XValue|YValue;	153	geom_flags = WidthValue|HeightValue|XValue|YValue;
374
375	if (ops)
376	{
377	while (*ops)
378	{	154	}
379	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;
380		161
381	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)	162	// deprecated
382	if (CHECK_GEOM_OPS ("tile"))	163	else if (!strcasecmp (arr[i], "tile"))
383	{	164	{
		165	new_flags |= IM_TILE;
384	w = h = noScale;	166	w = h = noScale;
385	geom_flags |= WidthValue|HeightValue;	167	geom_flags |= WidthValue|HeightValue;
386	}	168	}
387	else if (CHECK_GEOM_OPS ("propscale"))	169	else if (!strcasecmp (arr[i], "propscale"))
388	{	170	{
389	new_flags |= propScale;	171	new_flags |= IM_KEEP_ASPECT;
390	}
391	else if (CHECK_GEOM_OPS ("hscale"))
392	{
393	if (w == 0) w = windowScale;
394
395	h = noScale;	172	w = h = windowScale;
396	geom_flags |= WidthValue|HeightValue;	173	geom_flags |= WidthValue|HeightValue;
397	}	174	}
398	else if (CHECK_GEOM_OPS ("vscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
399	{	176	{
		177	new_flags |= IM_TILE;
400	if (h == 0) h = windowScale;	178	w = windowScale;
401
402	w = noScale;	179	h = noScale;
403	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
404	}	181	}
405	else if (CHECK_GEOM_OPS ("scale"))	182	else if (!strcasecmp (arr[i], "vscale"))
406	{	183	{
		184	new_flags |= IM_TILE;
407	if (h == 0) h = windowScale;	185	h = windowScale;
408	if (w == 0) w = windowScale;	186	w = noScale;
409
410	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
411	}	188	}
412	else if (CHECK_GEOM_OPS ("auto"))	189	else if (!strcasecmp (arr[i], "scale"))
413	{	190	{
414	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;
415	x = y = centerAlign;	197	x = y = centerAlign;
416	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
417	}	199	}
418	else if (CHECK_GEOM_OPS ("root"))	200	else if (!strcasecmp (arr[i], "root"))
419	{	201	{
420	new_flags |= rootAlign;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
421	w = h = noScale;	203	w = h = noScale;
422	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
423	}	205	}
424	# undef CHECK_GEOM_OPS
425		206
426	while (*ops != ':' && *ops != '\0') ++ops;	207	else
		208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
427	} /* done parsing ops */	209	} /* done parsing ops */
428	}
429		210
430	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;	211	rxvt_free_strsplit (arr);
431	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;	212	}
432	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;	213
433	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;	214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
		215
		216	if (!update)
434	}	217	{
		218	if (!(geom_flags & XValue))
		219	x = y = defaultAlign;
		220	else if (!(geom_flags & YValue))
		221	y = x;
435		222
436	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)
437	{	239	{
438	flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
439	changed = true;	245	changed = true;
440	}	246	}
441		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
442	return changed;	253	return changed;
443	}	254	}
444		255
445	void	256	void
446	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)
447	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
448	int target_width = target->szHint.width;	261	int parent_width = szHint.width;
449	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);
450		265
451	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)
452	{	275	{
453	float scale = (float)target_width / image_width;	276	float scale = (float)w / image_width;
454	min_it (scale, (float)target_height / image_height);	277	min_it (scale, (float)h / image_height);
455	w = image_width * scale + 0.5;	278	w = image_width * scale + 0.5;
456	h = image_height * scale + 0.5;	279	h = image_height * scale + 0.5;
457	}	280	}
458	else
459	{
460	w = h_scale * target_width / 100;
461	h = v_scale * target_height / 100;
462	}
463		281
464	if (!w) w = image_width;	282	if (!w) w = image_width;
465	if (!h) h = image_height;	283	if (!h) h = image_height;
466		284
467	if (flags & rootAlign)	285	if (image.flags & IM_ROOT_ALIGN)
468	{	286	{
469	target->get_window_origin (x, y);
470	x = -x;	287	x = -parent_x;
471	y = -y;	288	y = -parent_y;
472	}	289	}
473	else	290	else
474	{	291	{
475	x = make_align_position (h_align, target_width, w);	292	x = make_align_position (image.h_align, parent_width, w);
476	y = make_align_position (v_align, target_height, h);	293	y = make_align_position (image.v_align, parent_height, h);
477	}
478
479	flags &= ~sizeSensitive;
480	if ((flags & propScale) || h_scale || v_scale
481	|| (!(flags & rootAlign) && (h_align || v_align))
482	|| w > target_width || h > target_height)
483	flags |= sizeSensitive;
484	}
485
486	# ifdef HAVE_AFTERIMAGE
487	bool
488	bgPixmap_t::render_image (unsigned long background_flags)
489	{
490	if (target == NULL)
491	return false;
492
493	target->init_asv ();
494
495	ASImage *background = NULL;
496	ARGB32 background_tint = TINT_LEAVE_SAME;
497
498	# ifdef ENABLE_TRANSPARENCY
499	if (background_flags)
500	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
501
502	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
503	{	294	}
504	ShadingInfo as_shade;
505	as_shade.shading = shade;
506		295
507	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	296	if (!(image.flags & IM_ROOT_ALIGN)
508	if (flags & tintSet)
509	tint.get (c);
510	as_shade.tintColor.red = c.r;
511	as_shade.tintColor.green = c.g;
512	as_shade.tintColor.blue = c.b;
513
514	background_tint = shading2tint32 (&as_shade);
515	}
516
517	if (!(background_flags & transpPmapBlurred) && (flags & blurNeeded) && background != NULL)
518	{
519	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
520	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
521	100, ASIMAGE_QUALITY_DEFAULT);
522	if (tmp)
523	{
524	destroy_asimage (&background);
525	background = tmp;
526	}
527	}
528	# endif
529
530	ASImage *result = 0;
531
532	int target_width = target->szHint.width;
533	int target_height = target->szHint.height;
534	int new_pmap_width = target_width;
535	int new_pmap_height = target_height;
536
537	int x = 0;
538	int y = 0;
539	int w = 0;
540	int h = 0;
541
542	if (original_asim)
543	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
544
545	if (!original_asim
546	|| (!(flags & rootAlign)
547	&& (x >= target_width	297	&& (x >= parent_width
548	|| y >= target_height	298	|| y >= parent_height
549	|| (x + w <= 0)	299	|| x + w <= 0
550	|| (y + h <= 0))))	300	|| y + h <= 0))
551	{	301	return;
552	if (background)
553	{
554	new_pmap_width = background->width;
555	new_pmap_height = background->height;
556	result = background;
557		302
558	if (background_tint != TINT_LEAVE_SAME)	303	rxvt_img *img = image.img->scale (w, h);
559	{	304
560	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	305	if (image.flags & IM_TILE)
561	target_width, target_height, background_tint,	306	img->repeat_mode (RepeatNormal);
562	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
563	if (tmp)
564	result = tmp;
565	}
566	}
567	else
568	new_pmap_width = new_pmap_height = 0;
569	}
570	else	307	else
571	{	308	img->repeat_mode (RepeatNone);
572	result = original_asim;	309	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
573		310
574	if ((w != original_asim->width)	311	if (bg_img)
575	|| (h != original_asim->height))	312	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
576	{
577	result = scale_asimage (target->asv, original_asim,
578	w, h,
579	background ? ASA_ASImage : ASA_XImage,
580	100, ASIMAGE_QUALITY_DEFAULT);
581	}
582		313
583	if (background == NULL)
584	{
585	if (h_scale == 0 || v_scale == 0)
586	{
587	/* if tiling - pixmap has to be sized exactly as the image,
588	but there is no need to make it bigger than the window! */
589	new_pmap_width = min (result->width, target_width);
590	new_pmap_height = min (result->height, target_height);
591
592	/* we also need to tile our image in both directions */
593	ASImage *tmp = tile_asimage (target->asv, result,
594	(int)result->width - x,
595	(int)result->height - y,
596	new_pmap_width,
597	new_pmap_height,
598	TINT_LEAVE_SAME, ASA_XImage,
599	100, ASIMAGE_QUALITY_DEFAULT);
600	if (tmp)
601	{
602	if (result != original_asim)
603	destroy_asimage (&result);
604
605	result = tmp;
606	}
607	}
608	}
609	else
610	{
611	/* if blending background and image - pixmap has to be sized same as target window */
612	ASImageLayer *layers = create_image_layers (2);
613
614	layers[0].im = background;
615	layers[0].clip_width = target_width;
616	layers[0].clip_height = target_height;
617	layers[0].tint = background_tint;
618	layers[1].im = result;
619
620	if (h_scale == 0 || v_scale == 0)
621	{
622	/* tile horizontally */
623	while (x > 0) x -= (int)result->width;
624	layers[1].dst_x = x;
625	layers[1].clip_width = result->width+target_width;
626	}
627	else
628	{
629	/* clip horizontally */
630	layers[1].dst_x = x;
631	layers[1].clip_width = result->width;
632	}
633
634	if (h_scale == 0 || v_scale == 0)
635	{
636	while (y > 0) y -= (int)result->height;
637	layers[1].dst_y = y;
638	layers[1].clip_height = result->height + target_height;
639	}
640	else
641	{
642	layers[1].dst_y = y;
643	layers[1].clip_height = result->height;
644	}
645
646	if (target->rs[Rs_blendtype])
647	{
648	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
649	if (layers[1].merge_scanlines == NULL)
650	layers[1].merge_scanlines = alphablend_scanlines;
651	}
652
653	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
654	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
655
656	if (tmp)
657	{
658	if (result != original_asim)
659	destroy_asimage (&result);
660
661	result = tmp;
662	}
663
664	free (layers);
665	}
666	}
667
668	bool ret = false;
669
670	if (result)
671	{
672	XGCValues gcv;
673	GC gc;
674
675	/* create Pixmap */
676	if (pixmap == None
677	|| pmap_width != new_pmap_width
678	|| pmap_height != new_pmap_height
679	|| pmap_depth != target->depth)
680	{
681	if (pixmap)
682	XFreePixmap (target->dpy, pixmap);
683	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
684	pmap_width = new_pmap_width;
685	pmap_height = new_pmap_height;
686	pmap_depth = target->depth;
687	}
688	/* fill with background color (if result's not completely overlapping it) */
689	gcv.foreground = target->pix_colors[Color_bg];
690	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
691
692	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
693	int dst_width = result->width, dst_height = result->height;
694	if (background == NULL)
695	{
696	if (!(h_scale == 0 || v_scale == 0))
697	{
698	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
699	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
700	}
701
702	if (dst_x > 0 || dst_y > 0
703	|| dst_x + dst_width < new_pmap_width
704	|| dst_y + dst_height < new_pmap_height)
705	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
706	}
707
708	/* put result on pixmap */
709	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
710	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
711
712	if (result != background && result != original_asim)
713	destroy_asimage (&result);
714
715	XFreeGC (target->dpy, gc);
716
717	ret = true;
718	}
719
720	if (background)
721	destroy_asimage (&background);
722
723	return ret;
724	}
725	# endif /* HAVE_AFTERIMAGE */
726
727	# ifdef HAVE_PIXBUF
728	bool
729	bgPixmap_t::render_image (unsigned long background_flags)
730	{
731	if (target == NULL)
732	return false;
733
734	if (!pixbuf)
735	return false;
736
737	if (background_flags
738	&& !(flags & HAS_RENDER))
739	return false;
740
741	GdkPixbuf *result;
742
743	int image_width = gdk_pixbuf_get_width (pixbuf);
744	int image_height = gdk_pixbuf_get_height (pixbuf);
745
746	int target_width = target->szHint.width;
747	int target_height = target->szHint.height;
748	int new_pmap_width = target_width;
749	int new_pmap_height = target_height;
750
751	int x = 0;
752	int y = 0;
753	int w = 0;
754	int h = 0;
755
756	get_image_geometry (image_width, image_height, w, h, x, y);
757
758	if (!(flags & rootAlign)
759	&& (x >= target_width
760	|| y >= target_height
761	|| (x + w <= 0)
762	|| (y + h <= 0)))
763	return false;
764
765	result = pixbuf;
766
767	if ((w != image_width)
768	|| (h != image_height))
769	{
770	result = gdk_pixbuf_scale_simple (pixbuf,
771	w, h,
772	GDK_INTERP_BILINEAR);
773	}
774
775	bool ret = false;
776
777	if (result)
778	{
779	XGCValues gcv;
780	GC gc;
781	Pixmap root_pmap;
782
783	image_width = gdk_pixbuf_get_width (result);
784	image_height = gdk_pixbuf_get_height (result);
785
786	if (background_flags)
787	{
788	root_pmap = pixmap;
789	pixmap = None;
790	}
791	else
792	{
793	if (h_scale == 0 || v_scale == 0)
794	{
795	new_pmap_width = min (image_width, target_width);
796	new_pmap_height = min (image_height, target_height);
797	}
798	}
799
800	if (pixmap == None
801	|| pmap_width != new_pmap_width
802	|| pmap_height != new_pmap_height
803	|| pmap_depth != target->depth)
804	{
805	if (pixmap)
806	XFreePixmap (target->dpy, pixmap);
807	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
808	pmap_width = new_pmap_width;
809	pmap_height = new_pmap_height;
810	pmap_depth = target->depth;
811	}
812
813	gcv.foreground = target->pix_colors[Color_bg];
814	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
815
816	if (h_scale == 0 || v_scale == 0)
817	{
818	Pixmap tile = XCreatePixmap (target->dpy, target->vt, image_width, image_height, target->depth);
819	gdk_pixbuf_xlib_render_to_drawable (result, tile, gc,
820	0, 0,
821	0, 0,
822	image_width, image_height,
823	XLIB_RGB_DITHER_NONE,
824	0, 0);
825
826	gcv.tile = tile;
827	gcv.fill_style = FillTiled;
828	gcv.ts_x_origin = x;
829	gcv.ts_y_origin = y;
830	XChangeGC (target->dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
831
832	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
833	XFreePixmap (target->dpy, tile);
834	}
835	else
836	{
837	int src_x, src_y, dst_x, dst_y;
838	int dst_width, dst_height;
839
840	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
841	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
842
843	if (dst_x > 0 || dst_y > 0
844	|| dst_x + dst_width < new_pmap_width
845	|| dst_y + dst_height < new_pmap_height)
846	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
847
848	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
849	gdk_pixbuf_xlib_render_to_drawable (result, pixmap, gc,
850	src_x, src_y,
851	dst_x, dst_y,
852	dst_width, dst_height,
853	XLIB_RGB_DITHER_NONE,
854	0, 0);
855	}
856
857	#if XRENDER
858	if (background_flags)
859	{
860	Display *dpy = target->dpy;
861	XRenderPictureAttributes pa;
862
863	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, target->visual);	314	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
864	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	315	img->convert_format (format, pix_colors [Color_bg])->replace (img);
865		316
866	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);	317	delete bg_img;
867	Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);	318	bg_img = img;
868
869	pa.repeat = True;
870	Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);
871	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
872	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
873	XFreePixmap (dpy, mask_pmap);
874
875	if (src && dst && mask)
876	{
877	XRenderColor mask_c;
878
879	mask_c.alpha = 0x8000;
880	mask_c.red = 0;
881	mask_c.green = 0;
882	mask_c.blue = 0;
883	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
884	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
885	}
886
887	XRenderFreePicture (dpy, src);
888	XRenderFreePicture (dpy, dst);
889	XRenderFreePicture (dpy, mask);
890
891	XFreePixmap (dpy, root_pmap);
892	}
893	#endif
894
895	if (result != pixbuf)
896	g_object_unref (result);
897
898	XFreeGC (target->dpy, gc);
899
900	ret = true;
901	}
902
903	return ret;
904	}	319	}
905	# endif /* HAVE_PIXBUF */
906		320
907	bool	321	rxvt_image::rxvt_image ()
908	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)
909	{	335	{
910	if (!file || !*file)	336	if (!file || !*file)
911	return false;	337	return;
912		338
913	if (const char *p = strchr (file, ';'))	339	const char *p = strchr (file, ';');
		340
		341	if (p)
914	{	342	{
915	size_t len = p - file;	343	size_t len = p - file;
916	char *f = rxvt_temp_buf<char> (len + 1);	344	char *f = rxvt_temp_buf<char> (len + 1);
917	memcpy (f, file, len);	345	memcpy (f, file, len);
918	f[len] = '\0';	346	f[len] = '\0';
919	file = f;	347	file = f;
920	}	348	}
921		349
922	# ifdef HAVE_AFTERIMAGE	350	set_file (s, file);
923	if (!target->asimman)	351	alpha = 0x8000;
924	target->asimman = create_generic_imageman (target->rs[Rs_path]);	352	set_geometry (p ? p + 1 : "");
925	ASImage *image = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	353	}
926	if (image)
927	{
928	if (original_asim)
929	safe_asimage_destroy (original_asim);
930	original_asim = image;
931	have_image = true;
932	return true;
933	}
934	# endif
935		354
936	# ifdef HAVE_PIXBUF	355	void
937	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	356	rxvt_image::set_file (rxvt_screen *s, const char *file)
938	if (image)	357	{
939	{	358	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
940	if (pixbuf)	359	delete img;
941	g_object_unref (pixbuf);	360	img = img2;
942	pixbuf = image;
943	have_image = true;
944	return true;
945	}
946	# endif
947
948	return false;
949	}	361	}
950		362
951	# endif /* BG_IMAGE_FROM_FILE */	363	# endif /* BG_IMAGE_FROM_FILE */
952		364
953	# ifdef ENABLE_TRANSPARENCY
954	bool	365	bool
955	bgPixmap_t::set_transparent ()
956	{
957	if (!(flags & isTransparent))
958	{
959	flags |= isTransparent;
960	return true;
961	}
962
963	return false;
964	}
965
966	bool
967	bgPixmap_t::set_blur_radius (const char *geom)	366	image_effects::set_blur (const char *geom)
968	{	367	{
969	bool changed = false;	368	bool changed = false;
970	unsigned int hr, vr;	369	unsigned int hr, vr;
971	int junk;	370	int junk;
972	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	371	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
989	{	388	{
990	changed = true;	389	changed = true;
991	v_blurRadius = vr;	390	v_blurRadius = vr;
992	}	391	}
993		392
994	if (v_blurRadius == 0 && h_blurRadius == 0)
995	flags &= ~blurNeeded;
996	else
997	flags |= blurNeeded;
998
999	return changed;	393	return changed;
1000	}	394	}
1001		395
1002	static inline unsigned long
1003	compute_tint_shade_flags (rxvt_color *tint, int shade)
1004	{
1005	unsigned long flags = 0;
1006	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1007	bool has_shade = shade != 100;
1008
1009	if (tint)
1010	{
1011	tint->get (c);
1012	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)
1013	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)
1014	&& IS_COMPONENT_WHOLESOME (c.g)
1015	&& IS_COMPONENT_WHOLESOME (c.b))
1016	flags |= bgPixmap_t::tintWholesome;
1017	# undef IS_COMPONENT_WHOLESOME
1018	}
1019
1020	if (has_shade)
1021	flags |= bgPixmap_t::tintNeeded;
1022	else if (tint)
1023	{
1024	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)
1025	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))
1026	{
1027	flags |= bgPixmap_t::tintNeeded;
1028	}
1029	}
1030
1031	return flags;
1032	}
1033
1034	bool	396	bool
1035	bgPixmap_t::set_tint (rxvt_color &new_tint)	397	image_effects::set_tint (const rxvt_color &new_tint)
1036	{	398	{
1037	if (!(flags & tintSet) || tint != new_tint)	399	if (!tint_set || tint != new_tint)
1038	{	400	{
1039	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
1040	tint = new_tint;	401	tint = new_tint;
1041	flags = (flags & ~tintFlags) | new_flags | tintSet;	402	tint_set = true;
		403
1042	return true;	404	return true;
1043	}	405	}
1044		406
1045	return false;	407	return false;
1046	}	408	}
1047		409
1048	bool	410	bool
1049	bgPixmap_t::unset_tint ()
1050	{
1051	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
1052
1053	if (new_flags != (flags & tintFlags))
1054	{
1055	flags = (flags & ~tintFlags) | new_flags;
1056	return true;
1057	}
1058
1059	return false;
1060	}
1061
1062	bool
1063	bgPixmap_t::set_shade (const char *shade_str)	411	image_effects::set_shade (const char *shade_str)
1064	{	412	{
1065	int new_shade = (shade_str) ? atoi (shade_str) : 100;	413	int new_shade = atoi (shade_str);
1066		414
1067	clamp_it (new_shade, -100, 200);	415	clamp_it (new_shade, -100, 200);
1068	if (new_shade < 0)	416	if (new_shade < 0)
1069	new_shade = 200 - (100 + new_shade);	417	new_shade = 200 - (100 + new_shade);
1070		418
1071	if (new_shade != shade)	419	if (new_shade != shade)
1072	{	420	{
1073	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
1074	shade = new_shade;	421	shade = new_shade;
1075	flags = (flags & (~tintFlags | tintSet)) | new_flags;
1076	return true;	422	return true;
1077	}	423	}
1078		424
1079	return false;	425	return false;
1080	}	426	}
1081		427
1082	#if XRENDER	428	# if BG_IMAGE_FROM_ROOT
1083	static void	429	/*
1084	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1085	{
1086	double sigma = radius / 2.0;
1087	double scale = sqrt (2.0 * M_PI) * sigma;
1088	double sum = 0.0;
1089
1090	for (int i = 0; i < width; i++)
1091	{
1092	double x = i - width / 2;
1093	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1094	sum += kernel[i];
1095	}
1096
1097	params[0] = XDoubleToFixed (width);
1098	params[1] = XDoubleToFixed (1);
1099
1100	for (int i = 0; i < width; i++)
1101	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1102	}
1103	#endif
1104
1105	bool
1106	bgPixmap_t::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1107	{
1108	bool ret = false;
1109	#if XRENDER
1110	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1111	double *kernel = (double *)malloc (size * sizeof (double));
1112	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1113
1114	Display *dpy = target->dpy;
1115	XRenderPictureAttributes pa;
1116	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1117
1118	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1119	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1120
1121	if (kernel && params && src && dst)
1122	{
1123	if (h_blurRadius)
1124	{
1125	size = h_blurRadius * 2 + 1;
1126	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1127
1128	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1129	XRenderComposite (dpy,
1130	PictOpSrc,
1131	src,
1132	None,
1133	dst,
1134	0, 0,
1135	0, 0,
1136	0, 0,
1137	width, height);
1138	}
1139
1140	if (v_blurRadius)
1141	{
1142	size = v_blurRadius * 2 + 1;
1143	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1144	swap (params[0], params[1]);
1145
1146	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1147	XRenderComposite (dpy,
1148	PictOpSrc,
1149	src,
1150	None,
1151	dst,
1152	0, 0,
1153	0, 0,
1154	0, 0,
1155	width, height);
1156	}
1157
1158	ret = true;
1159	}
1160
1161	free (kernel);
1162	free (params);
1163	XRenderFreePicture (dpy, src);
1164	XRenderFreePicture (dpy, dst);
1165	#endif
1166	return ret;
1167	}
1168
1169	bool
1170	bgPixmap_t::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1171	{
1172	Display *dpy = target->dpy;
1173	bool ret = false;
1174
1175	if (flags & tintWholesome)
1176	{
1177	XGCValues gcv;
1178	GC gc;
1179
1180	/* In this case we can tint image server-side getting significant
1181	* performance improvements, as we eliminate XImage transfer
1182	*/
1183	gcv.foreground = Pixel (tint);
1184	gcv.function = GXand;
1185	gcv.fill_style = FillSolid;
1186	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1187	if (gc)
1188	{
1189	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1190	ret = true;
1191	XFreeGC (dpy, gc);
1192	}
1193	}
1194	else
1195	{
1196	# if XRENDER
1197	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1198
1199	if (flags & tintSet)
1200	tint.get (c);
1201
1202	if (shade <= 100)
1203	{
1204	c.r = (c.r * shade) / 100;
1205	c.g = (c.g * shade) / 100;
1206	c.b = (c.b * shade) / 100;
1207	}
1208	else
1209	{
1210	c.r = ((0xffff - c.r) * (200 - shade)) / 100;
1211	c.g = ((0xffff - c.g) * (200 - shade)) / 100;
1212	c.b = ((0xffff - c.b) * (200 - shade)) / 100;
1213	}
1214
1215	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1216	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1217	XRenderPictureAttributes pa;
1218
1219	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1220
1221	pa.repeat = True;
1222
1223	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1224	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1225	XFreePixmap (dpy, overlay_pmap);
1226
1227	pa.component_alpha = True;
1228	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1229	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1230	XFreePixmap (dpy, mask_pmap);
1231
1232	if (mask_pic && overlay_pic && back_pic)
1233	{
1234	XRenderColor mask_c;
1235
1236	mask_c.red = mask_c.green = mask_c.blue = shade > 100 ? 0xffff : 0;
1237	mask_c.alpha = 0xffff;
1238	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1239
1240	mask_c.alpha = 0;
1241	mask_c.red = 0xffff - c.r;
1242	mask_c.green = 0xffff - c.g;
1243	mask_c.blue = 0xffff - c.b;
1244	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1245	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1246	ret = true;
1247	}
1248
1249	XRenderFreePicture (dpy, mask_pic);
1250	XRenderFreePicture (dpy, overlay_pic);
1251	XRenderFreePicture (dpy, back_pic);
1252	# endif
1253	}
1254
1255	return ret;
1256	}
1257
1258	/* make_transparency_pixmap()
1259	* 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
1260	* 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
1261	* our window.	432	* our window.
1262	*/	433	*/
1263	unsigned long	434	void
1264	bgPixmap_t::make_transparency_pixmap ()	435	rxvt_term::render_root_image ()
1265	{	436	{
1266	unsigned long result = 0;
1267
1268	if (target == NULL)
1269	return 0;
1270
1271	/* 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
1272	* be always up-to-date, so let's use it :	438	* be always up-to-date, so let's use it :
1273	*/	439	*/
1274	int screen = target->display->screen;	440	int screen = display->screen;
1275	Display *dpy = target->dpy;
1276	int root_depth = DefaultDepth (dpy, screen);
1277	int root_width = DisplayWidth (dpy, screen);	441	int root_width = DisplayWidth (dpy, screen);
1278	int root_height = DisplayHeight (dpy, screen);	442	int root_height = DisplayHeight (dpy, screen);
1279	unsigned int root_pmap_width, root_pmap_height;
1280	int window_width = target->szHint.width;	443	int parent_width = szHint.width;
1281	int window_height = target->szHint.height;	444	int parent_height = szHint.height;
1282	int sx, sy;	445	int sx, sy;
1283	XGCValues gcv;
1284	GC gc;
1285		446
1286	target->get_window_origin (sx, sy);	447	sx = parent_x;
		448	sy = parent_y;
1287		449
1288	/* 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 : */
1289	if (sx + window_width <= 0 || sy + window_height <= 0	451	if (sx + parent_width <= 0 || sy + parent_height <= 0
1290	|| sx >= root_width || sy >= root_height)	452	|| sx >= root_width || sy >= root_height)
1291	return 0;	453	return;
1292		454
1293	// validate root pixmap and get its size	455	while (sx < 0) sx += root_img->w;
1294	if (root_pixmap != None)	456	while (sy < 0) sy += root_img->h;
1295	{
1296	Window wdummy;
1297	int idummy;
1298	unsigned int udummy;
1299		457
1300	target->allowedxerror = -1;	458	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1301		459
1302	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	460	if (root_effects.need_blur ())
1303	root_pixmap = None;	461	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1304		462
1305	target->allowedxerror = 0;	463	if (root_effects.need_tint ())
1306	}	464	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1307		465
1308	Pixmap recoded_root_pmap = root_pixmap;
1309
1310	if (root_pixmap != None && root_depth != target->depth)
1311	{
1312	#if XRENDER
1313	if (flags & HAS_RENDER)
1314	{
1315	XRenderPictureAttributes pa;
1316
1317	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1318	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1319
1320	recoded_root_pmap = XCreatePixmap (dpy, target->vt, root_pmap_width, root_pmap_height, target->depth);
1321	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);	466	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1322	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	467	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1323		468
1324	if (src && dst)	469	delete bg_img;
1325	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	470	bg_img = img;
1326	else	471	}
1327	{	472	# endif /* BG_IMAGE_FROM_ROOT */
1328	XFreePixmap (dpy, recoded_root_pmap);
1329	root_pixmap = None;
1330	}
1331		473
1332	XRenderFreePicture (dpy, src);	474	void
1333	XRenderFreePicture (dpy, dst);	475	rxvt_term::bg_render ()
1334	}	476	{
1335	else	477	if (bg_flags & BG_INHIBIT_RENDER)
		478	return;
		479
		480	delete bg_img;
		481	bg_img = 0;
		482	bg_flags = 0;
		483
		484	if (!mapped)
		485	return;
		486
		487	# if BG_IMAGE_FROM_ROOT
		488	if (root_img)
		489	{
		490	render_root_image ();
		491	bg_flags |= BG_IS_TRANSPARENT;
		492	}
		493	# endif
		494
		495	# if BG_IMAGE_FROM_FILE
		496	if (fimage.img)
		497	render_image (fimage);
		498	# endif
		499
		500	scr_recolour (false);
		501	bg_flags |= BG_NEEDS_REFRESH;
		502
		503	bg_valid_since = ev::now ();
		504	}
		505
		506	void
		507	rxvt_term::bg_init ()
		508	{
		509	#if BG_IMAGE_FROM_ROOT
		510	if (option (Opt_transparent))
		511	{
		512	if (rs [Rs_blurradius])
		513	root_effects.set_blur (rs [Rs_blurradius]);
		514
		515	if (ISSET_PIXCOLOR (Color_tint))
		516	root_effects.set_tint (pix_colors_focused [Color_tint]);
		517
		518	if (rs [Rs_shade])
		519	root_effects.set_shade (rs [Rs_shade]);
		520
		521	rxvt_img::new_from_root (this)->replace (root_img);
		522	XSelectInput (dpy, display->root, PropertyChangeMask);
		523	rootwin_ev.start (display, display->root);
		524	}
1336	#endif	525	#endif
1337	root_pixmap = None;	526
		527	#if BG_IMAGE_FROM_FILE
		528	if (rs[Rs_backgroundPixmap])
1338	}	529	{
1339		530	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1340	if (root_pixmap == None)	531	if (!bg_window_position_sensitive ())
1341	return 0;	532	update_background ();
1342
1343	Pixmap tiled_root_pmap = XCreatePixmap (dpy, target->vt, window_width, window_height, target->depth);
1344
1345	if (tiled_root_pmap == None) /* something really bad happened - abort */
1346	return 0;
1347
1348	/* straightforward pixmap copy */
1349	gcv.tile = recoded_root_pmap;
1350	gcv.fill_style = FillTiled;
1351
1352	while (sx < 0) sx += (int)root_width;
1353	while (sy < 0) sy += (int)root_height;
1354
1355	gcv.ts_x_origin = -sx;
1356	gcv.ts_y_origin = -sy;
1357	gc = XCreateGC (dpy, target->vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1358
1359	if (gc)
1360	{	533	}
1361	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);	534	#endif
1362	result |= transpPmapTiled;	535	}
1363	XFreeGC (dpy, gc);
1364		536
1365	if (!need_client_side_rendering ())	537	void
1366	{	538	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1367	if ((flags & blurNeeded)	539	{
1368	&& (flags & HAS_RENDER_CONV))	540	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1369	{
1370	if (blur_pixmap (tiled_root_pmap, target->visual, window_width, window_height))
1371	result |= transpPmapBlurred;
1372	}
1373	if ((flags & tintNeeded)
1374	&& (flags & (tintWholesome | HAS_RENDER)))
1375	{
1376	if (tint_pixmap (tiled_root_pmap, target->visual, window_width, window_height))
1377	result |= transpPmapTinted;
1378	}
1379	} /* server side rendering completed */
1380		541
1381	if (pixmap)	542	if (tint_set)
1382	XFreePixmap (dpy, pixmap);	543	tint.get (c);
1383		544
1384	pixmap = tiled_root_pmap;	545	if (shade > 100)
1385	pmap_width = window_width;	546	{
1386	pmap_height = window_height;	547	c.r = c.r * (200 - shade) / 100;
1387	pmap_depth = target->depth;	548	c.g = c.g * (200 - shade) / 100;
		549	c.b = c.b * (200 - shade) / 100;
1388	}	550	}
1389	else	551	else
1390	XFreePixmap (dpy, tiled_root_pmap);
1391
1392	if (recoded_root_pmap != root_pixmap)
1393	XFreePixmap (dpy, recoded_root_pmap);
1394
1395	return result;
1396	}
1397
1398	void
1399	bgPixmap_t::set_root_pixmap ()
1400	{
1401	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1402	if (new_root_pixmap == None)
1403	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1404
1405	root_pixmap = new_root_pixmap;
1406	}
1407	# endif /* ENABLE_TRANSPARENCY */
1408
1409	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1410	static void ShadeXImage(Visual *visual, XImage *srcImage, int shade, const rgba &c);
1411	# endif
1412
1413	bool
1414	bgPixmap_t::render ()
1415	{
1416	unsigned long background_flags = 0;
1417
1418	if (target == NULL)
1419	return false;
1420
1421	invalidate ();
1422	# ifdef ENABLE_TRANSPARENCY
1423	if (flags & isTransparent)
1424	{
1425	/* we need to re-generate transparency pixmap in that case ! */
1426	background_flags = make_transparency_pixmap ();
1427	if (background_flags == 0)
1428	return false;
1429	else if ((background_flags & transpTransformations) == (flags & transpTransformations))
1430	flags = flags & ~isInvalid;
1431	}	552	{
1432	# endif	553	c.r = c.r * shade / 100;
1433		554	c.g = c.g * shade / 100;
1434	# ifdef BG_IMAGE_FROM_FILE	555	c.b = c.b * shade / 100;
1435	if (have_image
1436	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1437	{	556	}
1438	if (render_image (background_flags))	557
1439	flags = flags & ~isInvalid;	558	img->contrast (c.r, c.g, c.b, c.a);
		559
		560	if (shade > 100)
1440	}	561	{
1441	# endif	562	c.a = 0xffff;
1442		563	c.r =
1443	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	564	c.g =
1444	XImage *result = NULL;	565	c.b = 0xffff * (shade - 100) / 100;
1445		566	img->brightness (c.r, c.g, c.b, c.a);
1446	if (background_flags && (flags & isInvalid))
1447	{	567	}
1448	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1449	}
1450
1451	if (result)
1452	{
1453	/* our own client-side tinting */
1454	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
1455	{
1456	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1457	if (flags & tintSet)
1458	tint.get (c);
1459	ShadeXImage (DefaultVisual (target->dpy, target->display->screen), result, shade, c);
1460	}
1461
1462	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1463
1464	if (gc)
1465	{
1466	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1467
1468	XFreeGC (target->dpy, gc);
1469	flags = flags & ~isInvalid;
1470	}
1471
1472	XDestroyImage (result);
1473	}
1474	# endif
1475
1476	if (flags & isInvalid)
1477	{
1478	if (pixmap != None)
1479	{
1480	XFreePixmap (target->dpy, pixmap);
1481	pixmap = None;
1482	}
1483	}
1484
1485	apply ();
1486
1487	valid_since = ev::now ();
1488
1489	return true;
1490	}
1491
1492	void
1493	bgPixmap_t::set_target (rxvt_term *new_target)
1494	{
1495	target = new_target;
1496
1497	flags &= ~(HAS_RENDER | HAS_RENDER_CONV);
1498	#if XRENDER
1499	int major, minor;
1500	if (XRenderQueryVersion (target->dpy, &major, &minor))
1501	flags |= HAS_RENDER;
1502	XFilters *filters = XRenderQueryFilters (target->dpy, target->vt);
1503	if (filters)
1504	{
1505	for (int i = 0; i < filters->nfilter; i++)
1506	if (!strcmp (filters->filter[i], FilterConvolution))
1507	flags |= HAS_RENDER_CONV;
1508
1509	XFree (filters);
1510	}
1511	#endif
1512	}
1513
1514	void
1515	bgPixmap_t::apply ()
1516	{
1517	if (target == NULL)
1518	return;
1519
1520	if (pixmap != None)
1521	{
1522	/* set target's background to pixmap */
1523	# ifdef ENABLE_TRANSPARENCY
1524	if (flags & isTransparent)
1525	{
1526	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1527	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1528
1529	if (target->scrollBar.win)
1530	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1531	}
1532	else
1533	# endif
1534	{
1535	/* force old pixmap dereference in case it was transparent before :*/
1536	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1537	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1538	/* do we also need to set scrollbar's background here ? */
1539
1540	if (target->scrollBar.win)
1541	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1542	}
1543	}
1544	else
1545	{
1546	/* set target background to a pixel */
1547	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1548	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);
1549	/* do we also need to set scrollbar's background here ? */
1550	if (target->scrollBar.win)
1551	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1552	}
1553
1554	/* don't want Expose on the parent or vt. It is better to use
1555	scr_touch or we get a great deal of flicker otherwise: */
1556	XClearWindow (target->dpy, target->parent[0]);
1557
1558	if (target->scrollBar.state && target->scrollBar.win)
1559	{
1560	target->scrollBar.state = STATE_IDLE;
1561	target->scrollBar.show (0);
1562	}
1563
1564	target->want_refresh = 1;
1565	flags |= hasChanged;
1566	}	568	}
1567		569
1568	#endif /* HAVE_BG_PIXMAP */	570	#endif /* HAVE_BG_PIXMAP */
1569
1570	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1571	/* taken from aterm-0.4.2 */
1572
1573	static void
1574	ShadeXImage(Visual *visual, XImage *srcImage, int shade, const rgba &c)
1575	{
1576	int sh_r, sh_g, sh_b;
1577	uint32_t mask_r, mask_g, mask_b;
1578	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1579	rgba low;
1580	rgba high;
1581	int i;
1582	int host_byte_order = byteorder.big_endian () ? MSBFirst : LSBFirst;
1583
1584	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return;
1585
1586	/* for convenience */
1587	mask_r = visual->red_mask;
1588	mask_g = visual->green_mask;
1589	mask_b = visual->blue_mask;
1590
1591	/* boring lookup table pre-initialization */
1592	switch (srcImage->depth)
1593	{
1594	case 15:
1595	if ((mask_r != 0x7c00) ||
1596	(mask_g != 0x03e0) ||
1597	(mask_b != 0x001f))
1598	return;
1599	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1600	lookup_r = lookup;
1601	lookup_g = lookup+32;
1602	lookup_b = lookup+32+32;
1603	sh_r = 10;
1604	sh_g = 5;
1605	sh_b = 0;
1606	break;
1607	case 16:
1608	if ((mask_r != 0xf800) ||
1609	(mask_g != 0x07e0) ||
1610	(mask_b != 0x001f))
1611	return;
1612	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1613	lookup_r = lookup;
1614	lookup_g = lookup+32;
1615	lookup_b = lookup+32+64;
1616	sh_r = 11;
1617	sh_g = 5;
1618	sh_b = 0;
1619	break;
1620	case 24:
1621	if ((mask_r != 0xff0000) ||
1622	(mask_g != 0x00ff00) ||
1623	(mask_b != 0x0000ff))
1624	return;
1625	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1626	lookup_r = lookup;
1627	lookup_g = lookup+256;
1628	lookup_b = lookup+256+256;
1629	sh_r = 16;
1630	sh_g = 8;
1631	sh_b = 0;
1632	break;
1633	case 32:
1634	if ((mask_r != 0xff0000) ||
1635	(mask_g != 0x00ff00) ||
1636	(mask_b != 0x0000ff))
1637	return;
1638	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1639	lookup_r = lookup;
1640	lookup_g = lookup+256;
1641	lookup_b = lookup+256+256;
1642	sh_r = 16;
1643	sh_g = 8;
1644	sh_b = 0;
1645	break;
1646	default:
1647	return; /* we do not support this color depth */
1648	}
1649
1650	/* prepare limits for color transformation (each channel is handled separately) */
1651	if (shade > 100)
1652	{
1653	shade = 200 - shade;
1654
1655	high.r = (65535 - c.r) * shade / 100;
1656	high.g = (65535 - c.g) * shade / 100;
1657	high.b = (65535 - c.b) * shade / 100;
1658
1659	low.r = 65535 - high.r;
1660	low.g = 65535 - high.g;
1661	low.b = 65535 - high.b;
1662	}
1663	else
1664	{
1665	high.r = c.r * shade / 100;
1666	high.g = c.g * shade / 100;
1667	high.b = c.b * shade / 100;
1668
1669	low.r = low.g = low.b = 0;
1670	}
1671
1672	/* fill our lookup tables */
1673	for (i = 0; i <= mask_r>>sh_r; i++)
1674	{
1675	uint32_t tmp;
1676	tmp = i * high.r;
1677	tmp += (mask_r>>sh_r) * low.r;
1678	lookup_r[i] = (tmp/65535)<<sh_r;
1679	}
1680	for (i = 0; i <= mask_g>>sh_g; i++)
1681	{
1682	uint32_t tmp;
1683	tmp = i * high.g;
1684	tmp += (mask_g>>sh_g) * low.g;
1685	lookup_g[i] = (tmp/65535)<<sh_g;
1686	}
1687	for (i = 0; i <= mask_b>>sh_b; i++)
1688	{
1689	uint32_t tmp;
1690	tmp = i * high.b;
1691	tmp += (mask_b>>sh_b) * low.b;
1692	lookup_b[i] = (tmp/65535)<<sh_b;
1693	}
1694
1695	/* apply table to input image (replacing colors by newly calculated ones) */
1696	if (srcImage->bits_per_pixel == 32
1697	&& (srcImage->depth == 24 || srcImage->depth == 32)
1698	&& srcImage->byte_order == host_byte_order)
1699	{
1700	uint32_t *p1, *pf, *p, *pl;
1701	p1 = (uint32_t *) srcImage->data;
1702	pf = (uint32_t *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1703
1704	while (p1 < pf)
1705	{
1706	p = p1;
1707	pl = p1 + srcImage->width;
1708	for (; p < pl; p++)
1709	{
1710	*p = lookup_r[(*p & 0xff0000) >> 16] |
1711	lookup_g[(*p & 0x00ff00) >> 8] |
1712	lookup_b[(*p & 0x0000ff)] |
1713	(*p & 0xff000000);
1714	}
1715	p1 = (uint32_t *) ((char *) p1 + srcImage->bytes_per_line);
1716	}
1717	}
1718	else
1719	{
1720	for (int y = 0; y < srcImage->height; y++)
1721	for (int x = 0; x < srcImage->width; x++)
1722	{
1723	unsigned long pixel = XGetPixel (srcImage, x, y);
1724	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1725	lookup_g[(pixel & mask_g) >> sh_g] |
1726	lookup_b[(pixel & mask_b) >> sh_b];
1727	XPutPixel (srcImage, x, y, pixel);
1728	}
1729	}
1730
1731	free (lookup);
1732	}
1733	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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