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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.126 by sf-exg, Wed Dec 1 15:39:00 2010 UTC vs.
Revision 1.244 by root, Sun Jun 17 21:58:18 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	*
72	* Pixmap Operations : (should be prepended by a colon)
73	* tile Tile image. Scaling/position modifiers above will affect
74	* the tile size and origin.
75	* propscale When scaling, scale proportionally. That is, maintain the
76	* proper aspect ratio for the image. Any portion of the
77	* background not covered by the image is filled with the
78	* current background color.
79	* hscale Scale horizontally, tile vertically ?
80	* vscale Tile horizontally, scale vertically ?
81	* scale Scale both up and down
82	* auto Same as 100x100+50+50
83	*/
84
85	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
86	bgPixmap_t::bgPixmap_t ()	29
		30	void
		31	rxvt_term::bg_destroy ()
87	{	32	{
88	// this is basically redundant as bgPixmap_t is only used in	33	# if ENABLE_TRANSPARENCY
89	// zero_initialised-derived structs	34	delete root_img;
90	#ifdef HAVE_AFTERIMAGE	35	root_img = 0;
91	original_asim = NULL;
92	#endif	36	# endif
93	#ifdef HAVE_PIXBUF	37
94	pixbuf = NULL;	38	# if BG_IMAGE_FROM_FILE
		39	fimage.destroy ();
95	#endif	40	# endif
96	#ifdef BG_IMAGE_FROM_FILE	41
97	have_image = false;	42	delete bg_img;
98	h_scale = v_scale = 0;	43	bg_img = 0;
99	h_align = v_align = 0;	44	}
		45
		46	bool
		47	rxvt_term::bg_window_size_sensitive ()
		48	{
		49	# if ENABLE_TRANSPARENCY
		50	if (bg_flags & BG_IS_TRANSPARENT)
		51	return true;
100	#endif	52	# endif
101	#ifdef ENABLE_TRANSPARENCY
102	shade = 100;
103	#endif
104	flags = 0;
105	pixmap = None;
106	valid_since = invalid_since = 0;
107	target = 0;
108	target_x = target_y = 0;
109	}
110		53
111	void	54	# if BG_IMAGE_FROM_FILE
112	bgPixmap_t::destroy ()	55	if (fimage.img)
113	{
114	#ifdef HAVE_AFTERIMAGE
115	if (original_asim)
116	safe_asimage_destroy (original_asim);
117	#endif
118
119	#ifdef HAVE_PIXBUF
120	if (pixbuf)
121	g_object_unref (pixbuf);
122	#endif
123
124	if (pixmap && target)
125	XFreePixmap (target->dpy, pixmap);
126	}
127
128	bool
129	bgPixmap_t::set_position (int x, int y)
130	{
131
132	if (target_x != x
133	|| target_y != y)
134	{	56	{
135	target_x = x;	57	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
136	target_y = y;	58	|| fimage.img->w > szHint.width
		59	|| fimage.img->h > szHint.height)
137	return true;	60	return true;
138	}	61	}
		62	# endif
		63
139	return false;	64	return false;
140	}	65	}
141		66
142	bool	67	bool
143	bgPixmap_t::window_size_sensitive ()	68	rxvt_term::bg_window_position_sensitive ()
144	{	69	{
145	# ifdef ENABLE_TRANSPARENCY	70	# if ENABLE_TRANSPARENCY
146	if (flags & isTransparent)	71	if (bg_flags & BG_IS_TRANSPARENT)
147	return true;	72	return true;
148	# endif	73	# endif
149		74
150	# ifdef BG_IMAGE_FROM_FILE	75	# if BG_IMAGE_FROM_FILE
151	if (have_image)	76	if (fimage.img)
152	{	77	{
153	if (flags & sizeSensitive)	78	if (fimage.flags & IM_ROOT_ALIGN)
154	return true;	79	return true;
155	}	80	}
156	# endif	81	# endif
157		82
158	return false;	83	return false;
159	}	84	}
160		85
161	bool
162	bgPixmap_t::window_position_sensitive ()
163	{
164	# ifdef ENABLE_TRANSPARENCY
165	if (flags & isTransparent)
166	return true;
167	# endif
168
169	# ifdef BG_IMAGE_FROM_FILE	86	# if BG_IMAGE_FROM_FILE
170	if (have_image)
171	{
172	if (flags & rootAlign)
173	return true;
174	}
175	# endif
176
177	return false;
178	}
179
180	bool bgPixmap_t::need_client_side_rendering ()
181	{
182	# ifdef HAVE_AFTERIMAGE
183	if (original_asim)
184	return true;
185	# endif
186	return false;
187	}
188
189	# ifdef BG_IMAGE_FROM_FILE
190	static inline bool
191	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
192	{
193	if (geom_flags & flag)
194	{
195	if (new_value > 1000)
196	new_value = 1000;
197	if (new_value != scale)
198	{
199	scale = new_value;
200	return true;
201	}
202	}
203	return false;
204	}
205
206	static inline bool
207	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
208	{
209	if (geom_flags & flag)
210	{
211	if (new_value < -100)
212	new_value = -100;
213	else if (new_value > 200)
214	new_value = 200;
215	if (new_value != align)
216	{
217	align = new_value;
218	return true;
219	}
220	}
221	return false;
222	}
223
224	static inline int	87	static inline int
225	make_align_position (int align, int window_size, int image_size)	88	make_align_position (int align, int window_size, int image_size)
226	{	89	{
227	int diff = window_size - image_size;
228	int smaller = min (image_size, window_size);
229
230	if (align >= 0 && align <= 100)	90	if (align >= 0 && align <= 100)
231	return diff * align / 100;	91	return lerp (0, window_size - image_size, align);
232	else if (align > 100 && align <= 200)	92	else if (align > 100)
233	return ((align - 100) * smaller / 100) + window_size - smaller;	93	return lerp (window_size - image_size, window_size, align - 100);
234	else if (align >= -100 && align < 0)	94	else
235	return ((align + 100) * smaller / 100) - image_size;	95	return lerp (-image_size, 0, align + 100);
236	return 0;
237	}	96	}
238		97
239	static inline int	98	static void
240	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	99	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
241	{	100	{
242	int src_pos = 0;	101	if (!strcasecmp (style, "tiled"))
243	dst_pos = pos;
244	dst_size = size;
245	if (pos < 0)
246	{
247	src_pos = -pos;
248	dst_pos = 0;
249	dst_size += pos;
250	}	102	{
251		103	flags = IM_TILE;
252	if (dst_pos + dst_size > target_size)	104	w = h = noScale;
253	dst_size = target_size - dst_pos;	105	x = y = 0;
254	return src_pos;	106	}
		107	else if (!strcasecmp (style, "aspect-stretched"))
		108	{
		109	flags = IM_KEEP_ASPECT;
		110	w = h = windowScale;
		111	x = y = centerAlign;
		112	}
		113	else if (!strcasecmp (style, "stretched"))
		114	{
		115	flags = 0;
		116	w = h = windowScale;
		117	x = y = centerAlign;
		118	}
		119	else if (!strcasecmp (style, "centered"))
		120	{
		121	flags = 0;
		122	w = h = noScale;
		123	x = y = centerAlign;
		124	}
		125	else if (!strcasecmp (style, "root-tiled"))
		126	{
		127	flags = IM_TILE|IM_ROOT_ALIGN;
		128	w = h = noScale;
		129	x = y = 0;
		130	}
255	}	131	}
256		132
257	bool	133	bool
258	bgPixmap_t::set_geometry (const char *geom, bool update)	134	rxvt_image::set_geometry (const char *geom, bool update)
259	{	135	{
260	bool changed = false;	136	bool changed = false;
261	int geom_flags = 0;	137	int geom_flags = 0;
262	int x = 0, y = 0;	138	int x = h_align;
		139	int y = v_align;
263	unsigned int w = 0, h = 0;	140	unsigned int w = h_scale;
264	unsigned int n;	141	unsigned int h = v_scale;
265	unsigned long new_flags = (flags & (~geometryFlags));	142	uint8_t new_flags = 0;
266	const char *ops;
267	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
268		143
269	if (geom == NULL)	144	if (geom == NULL)
270	return false;	145	return false;
271		146
272	char str[MAXLEN_GEOM];	147	if (geom[0])
273
274	ops = strchr (geom, ':');
275	if (ops == NULL)
276	n = strlen (geom);
277	else
278	n = ops - geom;
279
280	if (n >= MAXLEN_GEOM)
281	return false;
282
283	memcpy (str, geom, n);
284	str[n] = '\0';
285	rxvt_strtrim (str);
286
287	if (str[0])
288	{	148	{
289	/* we have geometry string - let's handle it prior to applying ops */	149	char **arr = rxvt_strsplit (':', geom);
		150
		151	for (int i = 0; arr[i]; i++)
		152	{
		153	if (!strncasecmp (arr[i], "style=", 6))
		154	{
		155	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		156	geom_flags = WidthValue|HeightValue|XValue|YValue;
		157	}
		158	else if (!strcasecmp (arr[i], "op=tile"))
		159	new_flags |= IM_TILE;
		160	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		161	new_flags |= IM_KEEP_ASPECT;
		162	else if (!strcasecmp (arr[i], "op=root-align"))
		163	new_flags |= IM_ROOT_ALIGN;
		164
		165	// deprecated
		166	else if (!strcasecmp (arr[i], "tile"))
		167	{
		168	new_flags |= IM_TILE;
		169	w = h = noScale;
		170	geom_flags |= WidthValue|HeightValue;
		171	}
		172	else if (!strcasecmp (arr[i], "propscale"))
		173	{
		174	new_flags |= IM_KEEP_ASPECT;
		175	w = h = windowScale;
		176	geom_flags |= WidthValue|HeightValue;
		177	}
		178	else if (!strcasecmp (arr[i], "hscale"))
		179	{
		180	new_flags |= IM_TILE;
		181	w = windowScale;
		182	h = noScale;
		183	geom_flags |= WidthValue|HeightValue;
		184	}
		185	else if (!strcasecmp (arr[i], "vscale"))
		186	{
		187	new_flags |= IM_TILE;
		188	h = windowScale;
		189	w = noScale;
		190	geom_flags |= WidthValue|HeightValue;
		191	}
		192	else if (!strcasecmp (arr[i], "scale"))
		193	{
		194	w = h = windowScale;
		195	geom_flags |= WidthValue|HeightValue;
		196	}
		197	else if (!strcasecmp (arr[i], "auto"))
		198	{
		199	w = h = windowScale;
		200	x = y = centerAlign;
		201	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		202	}
		203	else if (!strcasecmp (arr[i], "root"))
		204	{
		205	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		206	w = h = noScale;
		207	geom_flags |= WidthValue|HeightValue;
		208	}
		209
		210	else
290	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	211	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
291	} /* done parsing geometry string */	212	} /* done parsing ops */
		213
		214	rxvt_free_strsplit (arr);
		215	}
		216
		217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
292		218
293	if (!update)	219	if (!update)
294	{	220	{
295	if (!(geom_flags & XValue))	221	if (!(geom_flags & XValue))
296	x = y = defaultAlign;	222	x = y = defaultAlign;
…		…
301	w = h = defaultScale;	227	w = h = defaultScale;
302	else if (!(geom_flags & HeightValue))	228	else if (!(geom_flags & HeightValue))
303	h = w;	229	h = w;
304	else if (!(geom_flags & WidthValue))	230	else if (!(geom_flags & WidthValue))
305	w = h;	231	w = h;
306
307	geom_flags |= WidthValue|HeightValue|XValue|YValue;
308	}
309
310	if (ops)
311	{	232	}
312	while (*ops)
313	{
314	while (*ops == ':' || isspace(*ops)) ++ops;
315		233
316	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)	234	clamp_it (x, -100, 200);
317	if (CHECK_GEOM_OPS ("tile"))	235	clamp_it (y, -100, 200);
318	{
319	w = h = noScale;
320	geom_flags |= WidthValue|HeightValue;
321	}
322	else if (CHECK_GEOM_OPS ("propscale"))
323	{
324	new_flags |= propScale;
325	}
326	else if (CHECK_GEOM_OPS ("hscale"))
327	{
328	if (w == 0) w = windowScale;
329		236
330	h = noScale;	237	if (flags != new_flags
331	geom_flags |= WidthValue|HeightValue;	238	|| h_scale != w
332	}	239	|| v_scale != h
333	else if (CHECK_GEOM_OPS ("vscale"))	240	|| h_align != x
334	{	241	|| v_align != y)
335	if (h == 0) h = windowScale;
336
337	w = noScale;
338	geom_flags |= WidthValue|HeightValue;
339	}
340	else if (CHECK_GEOM_OPS ("scale"))
341	{
342	if (h == 0) h = windowScale;
343	if (w == 0) w = windowScale;
344
345	geom_flags |= WidthValue|HeightValue;
346	}
347	else if (CHECK_GEOM_OPS ("auto"))
348	{
349	w = h = windowScale;
350	x = y = centerAlign;
351	geom_flags |= WidthValue|HeightValue|XValue|YValue;
352	}
353	else if (CHECK_GEOM_OPS ("root"))
354	{
355	new_flags |= rootAlign;
356	w = h = noScale;
357	geom_flags |= WidthValue|HeightValue;
358	}
359	# undef CHECK_GEOM_OPS
360
361	while (*ops != ':' && *ops != '\0') ++ops;
362	} /* done parsing ops */
363	}
364
365	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
366	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
367	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
368	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
369
370	if (new_flags != flags)
371	{	242	{
372	flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
373	changed = true;	248	changed = true;
374	}	249	}
375		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
376	return changed;	256	return changed;
377	}	257	}
378		258
379	void	259	void
380	bgPixmap_t::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	260	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
381	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
382	int target_width = target->szHint.width;	264	int parent_width = szHint.width;
383	int target_height = target->szHint.height;	265	int parent_height = szHint.height;
		266	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		267	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
384		268
385	if (flags & propScale)	269	w = h_scale * parent_width / 100;
		270	h = v_scale * parent_height / 100;
		271
		272	if (image.flags & IM_KEEP_ASPECT)
386	{	273	{
387	float scale = (float)target_width / image_width;	274	float scale = (float)w / image_width;
388	min_it (scale, (float)target_height / image_height);	275	min_it (scale, (float)h / image_height);
389	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
390	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
391	}	278	}
392	else
393	{
394	w = h_scale * target_width / 100;
395	h = v_scale * target_height / 100;
396	}
397		279
398	if (!w) w = image_width;	280	if (!w) w = image_width;
399	if (!h) h = image_height;	281	if (!h) h = image_height;
400		282
401	if (flags & rootAlign)	283	if (image.flags & IM_ROOT_ALIGN)
402	{	284	{
403	x = -target_x;	285	x = -parent_x;
404	y = -target_y;	286	y = -parent_y;
405	}	287	}
406	else	288	else
407	{	289	{
408	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
409	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
410	}
411
412	flags &= ~sizeSensitive;
413	if ((flags & propScale) || h_scale || v_scale
414	|| (!(flags & rootAlign) && (h_align || v_align))
415	|| w > target_width || h > target_height)
416	flags |= sizeSensitive;
417	}
418
419	# ifdef HAVE_AFTERIMAGE
420	bool
421	bgPixmap_t::render_image (unsigned long background_flags)
422	{
423	if (target == NULL)
424	return false;
425
426	target->init_asv ();
427
428	ASImage *background = NULL;
429	ARGB32 background_tint = TINT_LEAVE_SAME;
430
431	# ifdef ENABLE_TRANSPARENCY
432	if (background_flags)
433	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
434
435	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
436	{	292	}
437	ShadingInfo as_shade;	293	}
438	as_shade.shading = shade;
439		294
440	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
441	if (flags & tintSet)	296	rxvt_term::render_image (rxvt_image &image)
442	tint.get (c);	297	{
443	as_shade.tintColor.red = c.r;
444	as_shade.tintColor.green = c.g;
445	as_shade.tintColor.blue = c.b;
446
447	background_tint = shading2tint32 (&as_shade);
448	}
449
450	if (!(background_flags & transpPmapBlurred) && (flags & blurNeeded) && background != NULL)
451	{
452	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
453	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
454	100, ASIMAGE_QUALITY_DEFAULT);
455	if (tmp)
456	{
457	destroy_asimage (&background);
458	background = tmp;
459	}
460	}
461	# endif
462
463	ASImage *result = 0;
464
465	int target_width = target->szHint.width;	298	int parent_width = szHint.width;
466	int target_height = target->szHint.height;	299	int parent_height = szHint.height;
467	int new_pmap_width = target_width;
468	int new_pmap_height = target_height;
469		300
470	int x = 0;	301	int x = 0;
471	int y = 0;	302	int y = 0;
472	int w = 0;	303	int w = 0;
473	int h = 0;	304	int h = 0;
474		305
475	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
476	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
477		307
478	if (!original_asim	308	if (!(image.flags & IM_ROOT_ALIGN)
479	|| (!(flags & rootAlign)
480	&& (x >= target_width	309	&& (x >= parent_width
481	|| y >= target_height	310	|| y >= parent_height
482	|| (x + w <= 0)	311	|| x + w <= 0
483	|| (y + h <= 0))))	312	|| y + h <= 0))
484	{	313	return false;
485	if (background)
486	{
487	new_pmap_width = background->width;
488	new_pmap_height = background->height;
489	result = background;
490		314
491	if (background_tint != TINT_LEAVE_SAME)	315	rxvt_img *img = image.img->scale (w, h);
492	{	316
493	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	317	if (image.flags & IM_TILE)
494	target_width, target_height, background_tint,	318	img->repeat_mode (RepeatNormal);
495	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
496	if (tmp)
497	result = tmp;
498	}
499	}
500	else
501	new_pmap_width = new_pmap_height = 0;
502	}
503	else	319	else
504	{	320	img->repeat_mode (RepeatNone);
505	result = original_asim;	321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
506		322
507	if ((w != original_asim->width)	323	if (bg_flags & BG_IS_VALID)
508	|| (h != original_asim->height))	324	bg_img->draw (img, PictOpOver, image.alpha * 1. / 0xffff);
509	{
510	result = scale_asimage (target->asv, original_asim,
511	w, h,
512	background ? ASA_ASImage : ASA_XImage,
513	100, ASIMAGE_QUALITY_DEFAULT);
514	}
515		325
516	if (background == NULL)	326	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
517	{	327	img->convert_format (format, pix_colors [Color_bg])->replace (img);
518	if (h_scale == 0 || v_scale == 0)
519	{
520	/* if tiling - pixmap has to be sized exactly as the image,
521	but there is no need to make it bigger than the window! */
522	new_pmap_width = min (result->width, target_width);
523	new_pmap_height = min (result->height, target_height);
524		328
525	/* we also need to tile our image in both directions */	329	delete bg_img;
526	ASImage *tmp = tile_asimage (target->asv, result,	330	bg_img = img;
527	(int)result->width - x,
528	(int)result->height - y,
529	new_pmap_width,
530	new_pmap_height,
531	TINT_LEAVE_SAME, ASA_XImage,
532	100, ASIMAGE_QUALITY_DEFAULT);
533	if (tmp)
534	{
535	if (result != original_asim)
536	destroy_asimage (&result);
537		331
538	result = tmp;
539	}
540	}
541	}
542	else
543	{
544	/* if blending background and image - pixmap has to be sized same as target window */
545	ASImageLayer *layers = create_image_layers (2);
546
547	layers[0].im = background;
548	layers[0].clip_width = target_width;
549	layers[0].clip_height = target_height;
550	layers[0].tint = background_tint;
551	layers[1].im = result;
552
553	if (h_scale == 0 || v_scale == 0)
554	{
555	/* tile horizontally */
556	while (x > 0) x -= (int)result->width;
557	layers[1].dst_x = x;
558	layers[1].clip_width = result->width+target_width;
559	}
560	else
561	{
562	/* clip horizontally */
563	layers[1].dst_x = x;
564	layers[1].clip_width = result->width;
565	}
566
567	if (h_scale == 0 || v_scale == 0)
568	{
569	while (y > 0) y -= (int)result->height;
570	layers[1].dst_y = y;
571	layers[1].clip_height = result->height + target_height;
572	}
573	else
574	{
575	layers[1].dst_y = y;
576	layers[1].clip_height = result->height;
577	}
578
579	if (target->rs[Rs_blendtype])
580	{
581	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
582	if (layers[1].merge_scanlines == NULL)
583	layers[1].merge_scanlines = alphablend_scanlines;
584	}
585
586	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
587	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
588
589	if (tmp)
590	{
591	if (result != original_asim)
592	destroy_asimage (&result);
593
594	result = tmp;
595	}
596
597	free (layers);
598	}
599	}
600
601	bool ret = false;
602
603	if (result)
604	{
605	XGCValues gcv;
606	GC gc;
607
608	/* create Pixmap */
609	if (pixmap == None
610	|| pmap_width != new_pmap_width
611	|| pmap_height != new_pmap_height
612	|| pmap_depth != target->depth)
613	{
614	if (pixmap)
615	XFreePixmap (target->dpy, pixmap);
616	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
617	pmap_width = new_pmap_width;
618	pmap_height = new_pmap_height;
619	pmap_depth = target->depth;
620	}
621	/* fill with background color (if result's not completely overlapping it) */
622	gcv.foreground = target->pix_colors[Color_bg];
623	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
624
625	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
626	int dst_width = result->width, dst_height = result->height;
627	if (background == NULL)
628	{
629	if (!(h_scale == 0 || v_scale == 0))
630	{
631	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
632	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
633	}
634
635	if (dst_x > 0 || dst_y > 0
636	|| dst_x + dst_width < new_pmap_width
637	|| dst_y + dst_height < new_pmap_height)
638	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
639	}
640
641	/* put result on pixmap */
642	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
643	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
644
645	if (result != background && result != original_asim)
646	destroy_asimage (&result);
647
648	XFreeGC (target->dpy, gc);
649
650	ret = true;
651	}
652
653	if (background)
654	destroy_asimage (&background);
655
656	return ret;	332	return true;
657	}	333	}
658	# endif /* HAVE_AFTERIMAGE */
659		334
660	# ifdef HAVE_PIXBUF	335	rxvt_image::rxvt_image ()
661	bool
662	bgPixmap_t::render_image (unsigned long background_flags)
663	{	336	{
664	if (target == NULL)	337	alpha = 0xffff;
665	return false;	338	flags = 0;
		339	h_scale =
		340	v_scale = defaultScale;
		341	h_align =
		342	v_align = defaultAlign;
666		343
667	if (!pixbuf)	344	img = 0;
668	return false;
669
670	if (background_flags
671	&& !(flags & HAS_RENDER))
672	return false;
673
674	GdkPixbuf *result;
675
676	int image_width = gdk_pixbuf_get_width (pixbuf);
677	int image_height = gdk_pixbuf_get_height (pixbuf);
678
679	int target_width = target->szHint.width;
680	int target_height = target->szHint.height;
681	int new_pmap_width = target_width;
682	int new_pmap_height = target_height;
683
684	int x = 0;
685	int y = 0;
686	int w = 0;
687	int h = 0;
688
689	get_image_geometry (image_width, image_height, w, h, x, y);
690
691	if (!(flags & rootAlign)
692	&& (x >= target_width
693	|| y >= target_height
694	|| (x + w <= 0)
695	|| (y + h <= 0)))
696	return false;
697
698	result = pixbuf;
699
700	if ((w != image_width)
701	|| (h != image_height))
702	{
703	result = gdk_pixbuf_scale_simple (pixbuf,
704	w, h,
705	GDK_INTERP_BILINEAR);
706	}
707
708	bool ret = false;
709
710	if (result)
711	{
712	XGCValues gcv;
713	GC gc;
714	Pixmap root_pmap;
715
716	image_width = gdk_pixbuf_get_width (result);
717	image_height = gdk_pixbuf_get_height (result);
718
719	if (background_flags)
720	{
721	root_pmap = pixmap;
722	pixmap = None;
723	}
724	else
725	{
726	if (h_scale == 0 || v_scale == 0)
727	{
728	new_pmap_width = min (image_width, target_width);
729	new_pmap_height = min (image_height, target_height);
730	}
731	}
732
733	if (pixmap == None
734	|| pmap_width != new_pmap_width
735	|| pmap_height != new_pmap_height
736	|| pmap_depth != target->depth)
737	{
738	if (pixmap)
739	XFreePixmap (target->dpy, pixmap);
740	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
741	pmap_width = new_pmap_width;
742	pmap_height = new_pmap_height;
743	pmap_depth = target->depth;
744	}
745
746	gcv.foreground = target->pix_colors[Color_bg];
747	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
748
749	if (h_scale == 0 || v_scale == 0)
750	{
751	Pixmap tile = XCreatePixmap (target->dpy, target->vt, image_width, image_height, target->depth);
752	gdk_pixbuf_xlib_render_to_drawable (result, tile, gc,
753	0, 0,
754	0, 0,
755	image_width, image_height,
756	XLIB_RGB_DITHER_NONE,
757	0, 0);
758
759	gcv.tile = tile;
760	gcv.fill_style = FillTiled;
761	gcv.ts_x_origin = x;
762	gcv.ts_y_origin = y;
763	XChangeGC (target->dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
764
765	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
766	XFreePixmap (target->dpy, tile);
767	}
768	else
769	{
770	int src_x, src_y, dst_x, dst_y;
771	int dst_width, dst_height;
772
773	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
774	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
775
776	if (dst_x > 0 || dst_y > 0
777	|| dst_x + dst_width < new_pmap_width
778	|| dst_y + dst_height < new_pmap_height)
779	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
780
781	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
782	gdk_pixbuf_xlib_render_to_drawable (result, pixmap, gc,
783	src_x, src_y,
784	dst_x, dst_y,
785	dst_width, dst_height,
786	XLIB_RGB_DITHER_NONE,
787	0, 0);
788	}
789
790	#if XRENDER
791	if (background_flags)
792	{
793	Display *dpy = target->dpy;
794	XRenderPictureAttributes pa;
795
796	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, target->visual);
797	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
798
799	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);
800	Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);
801
802	pa.repeat = True;
803	Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);
804	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
805	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
806	XFreePixmap (dpy, mask_pmap);
807
808	if (src && dst && mask)
809	{
810	XRenderColor mask_c;
811
812	mask_c.alpha = 0x8000;
813	mask_c.red = 0;
814	mask_c.green = 0;
815	mask_c.blue = 0;
816	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
817	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
818	}
819
820	XRenderFreePicture (dpy, src);
821	XRenderFreePicture (dpy, dst);
822	XRenderFreePicture (dpy, mask);
823
824	XFreePixmap (dpy, root_pmap);
825	}
826	#endif
827
828	if (result != pixbuf)
829	g_object_unref (result);
830
831	XFreeGC (target->dpy, gc);
832
833	ret = true;
834	}
835
836	return ret;
837	}	345	}
838	# endif /* HAVE_PIXBUF */
839		346
840	bool	347	void
841	bgPixmap_t::set_file (const char *file)	348	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
842	{	349	{
843	if (!file || !*file)	350	if (!file || !*file)
844	return false;	351	return;
845		352
846	if (const char *p = strchr (file, ';'))	353	const char *p = strchr (file, ';');
		354
		355	if (p)
847	{	356	{
848	size_t len = p - file;	357	size_t len = p - file;
849	char *f = rxvt_temp_buf<char> (len + 1);	358	char *f = rxvt_temp_buf<char> (len + 1);
850	memcpy (f, file, len);	359	memcpy (f, file, len);
851	f[len] = '\0';	360	f[len] = '\0';
852	file = f;	361	file = f;
853	}	362	}
854		363
855	# ifdef HAVE_AFTERIMAGE	364	set_file (s, file);
856	if (!target->asimman)	365	alpha = 0x8000;
857	target->asimman = create_generic_imageman (target->rs[Rs_path]);	366	set_geometry (p ? p + 1 : "");
858	ASImage *image = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	367	}
859	if (image)
860	{
861	if (original_asim)
862	safe_asimage_destroy (original_asim);
863	original_asim = image;
864	have_image = true;
865	return true;
866	}
867	# endif
868		368
869	# ifdef HAVE_PIXBUF	369	void
870	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	370	rxvt_image::set_file (rxvt_screen *s, const char *file)
871	if (image)	371	{
872	{	372	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
873	if (pixbuf)	373	delete img;
874	g_object_unref (pixbuf);	374	img = img2;
875	pixbuf = image;
876	have_image = true;
877	return true;
878	}
879	# endif
880
881	return false;
882	}	375	}
883		376
884	# endif /* BG_IMAGE_FROM_FILE */	377	# endif /* BG_IMAGE_FROM_FILE */
885		378
886	# ifdef ENABLE_TRANSPARENCY
887	bool	379	bool
888	bgPixmap_t::set_transparent ()
889	{
890	if (!(flags & isTransparent))
891	{
892	flags |= isTransparent;
893	return true;
894	}
895
896	return false;
897	}
898
899	bool
900	bgPixmap_t::set_blur_radius (const char *geom)	380	image_effects::set_blur (const char *geom)
901	{	381	{
902	bool changed = false;	382	bool changed = false;
903	unsigned int hr, vr;	383	unsigned int hr, vr;
904	int junk;	384	int junk;
905	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	385	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
922	{	402	{
923	changed = true;	403	changed = true;
924	v_blurRadius = vr;	404	v_blurRadius = vr;
925	}	405	}
926		406
927	if (v_blurRadius == 0 && h_blurRadius == 0)
928	flags &= ~blurNeeded;
929	else
930	flags |= blurNeeded;
931
932	return changed;	407	return changed;
933	}	408	}
934		409
935	static inline unsigned long
936	compute_tint_shade_flags (rxvt_color *tint, int shade)
937	{
938	unsigned long flags = 0;
939	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
940	bool has_shade = shade != 100;
941
942	if (tint)
943	{
944	tint->get (c);
945	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x00ff || (cmp) >= 0xff00)
946	if (!has_shade
947	&& IS_COMPONENT_WHOLESOME (c.r)
948	&& IS_COMPONENT_WHOLESOME (c.g)
949	&& IS_COMPONENT_WHOLESOME (c.b))
950	flags |= bgPixmap_t::tintWholesome;
951	# undef IS_COMPONENT_WHOLESOME
952	}
953
954	if (has_shade || tint)
955	flags |= bgPixmap_t::tintNeeded;
956
957	return flags;
958	}
959
960	bool	410	bool
961	bgPixmap_t::set_tint (rxvt_color &new_tint)	411	image_effects::set_tint (const rxvt_color &new_tint)
962	{	412	{
963	if (!(flags & tintSet) || tint != new_tint)	413	if (!tint_set || tint != new_tint)
964	{	414	{
965	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
966	tint = new_tint;	415	tint = new_tint;
967	flags = (flags & ~tintFlags) | new_flags | tintSet;	416	tint_set = true;
		417
968	return true;	418	return true;
969	}	419	}
970		420
971	return false;	421	return false;
972	}	422	}
973		423
974	bool	424	bool
975	bgPixmap_t::unset_tint ()
976	{
977	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
978
979	if (new_flags != (flags & tintFlags))
980	{
981	flags = (flags & ~tintFlags) | new_flags;
982	return true;
983	}
984
985	return false;
986	}
987
988	bool
989	bgPixmap_t::set_shade (const char *shade_str)	425	image_effects::set_shade (const char *shade_str)
990	{	426	{
991	int new_shade = (shade_str) ? atoi (shade_str) : 100;	427	int new_shade = atoi (shade_str);
992		428
993	clamp_it (new_shade, -100, 200);	429	clamp_it (new_shade, -100, 200);
994	if (new_shade < 0)	430	if (new_shade < 0)
995	new_shade = 200 - (100 + new_shade);	431	new_shade = 200 - (100 + new_shade);
996		432
997	if (new_shade != shade)	433	if (new_shade != shade)
998	{	434	{
999	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
1000	shade = new_shade;	435	shade = new_shade;
1001	flags = (flags & (~tintFlags | tintSet)) | new_flags;
1002	return true;	436	return true;
1003	}	437	}
1004		438
1005	return false;	439	return false;
1006	}	440	}
1007		441
1008	#if XRENDER	442	# if ENABLE_TRANSPARENCY
1009	static void	443	/*
1010	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1011	{
1012	double sigma = radius / 2.0;
1013	double scale = sqrt (2.0 * M_PI) * sigma;
1014	double sum = 0.0;
1015
1016	for (int i = 0; i < width; i++)
1017	{
1018	double x = i - width / 2;
1019	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1020	sum += kernel[i];
1021	}
1022
1023	params[0] = XDoubleToFixed (width);
1024	params[1] = XDoubleToFixed (1);
1025
1026	for (int i = 0; i < width; i++)
1027	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1028	}
1029	#endif
1030
1031	bool
1032	bgPixmap_t::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1033	{
1034	bool ret = false;
1035	#if XRENDER
1036	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1037	double *kernel = (double *)malloc (size * sizeof (double));
1038	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1039
1040	Display *dpy = target->dpy;
1041	XRenderPictureAttributes pa;
1042	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1043
1044	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1045	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1046
1047	if (kernel && params && src && dst)
1048	{
1049	if (h_blurRadius)
1050	{
1051	size = h_blurRadius * 2 + 1;
1052	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1053
1054	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1055	XRenderComposite (dpy,
1056	PictOpSrc,
1057	src,
1058	None,
1059	dst,
1060	0, 0,
1061	0, 0,
1062	0, 0,
1063	width, height);
1064	}
1065
1066	if (v_blurRadius)
1067	{
1068	size = v_blurRadius * 2 + 1;
1069	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1070	swap (params[0], params[1]);
1071
1072	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1073	XRenderComposite (dpy,
1074	PictOpSrc,
1075	src,
1076	None,
1077	dst,
1078	0, 0,
1079	0, 0,
1080	0, 0,
1081	width, height);
1082	}
1083
1084	ret = true;
1085	}
1086
1087	free (kernel);
1088	free (params);
1089	XRenderFreePicture (dpy, src);
1090	XRenderFreePicture (dpy, dst);
1091	#endif
1092	return ret;
1093	}
1094
1095	bool
1096	bgPixmap_t::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1097	{
1098	Display *dpy = target->dpy;
1099	bool ret = false;
1100
1101	if (flags & tintWholesome)
1102	{
1103	XGCValues gcv;
1104	GC gc;
1105
1106	/* In this case we can tint image server-side getting significant
1107	* performance improvements, as we eliminate XImage transfer
1108	*/
1109	gcv.foreground = Pixel (tint);
1110	gcv.function = GXand;
1111	gcv.fill_style = FillSolid;
1112	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1113	if (gc)
1114	{
1115	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1116	ret = true;
1117	XFreeGC (dpy, gc);
1118	}
1119	}
1120	else
1121	{
1122	# if XRENDER
1123	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1124
1125	if (flags & tintSet)
1126	tint.get (c);
1127
1128	if (shade <= 100)
1129	{
1130	c.r = (c.r * shade) / 100;
1131	c.g = (c.g * shade) / 100;
1132	c.b = (c.b * shade) / 100;
1133	}
1134	else
1135	{
1136	c.r = (c.r * (200 - shade)) / 100;
1137	c.g = (c.g * (200 - shade)) / 100;
1138	c.b = (c.b * (200 - shade)) / 100;
1139	}
1140
1141	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1142	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1143	XRenderPictureAttributes pa;
1144
1145	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1146
1147	pa.repeat = True;
1148
1149	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1150	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1151	XFreePixmap (dpy, overlay_pmap);
1152
1153	pa.component_alpha = True;
1154	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1155	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1156	XFreePixmap (dpy, mask_pmap);
1157
1158	if (mask_pic && overlay_pic && back_pic)
1159	{
1160	XRenderColor mask_c;
1161
1162	mask_c.red = mask_c.green = mask_c.blue = 0;
1163	mask_c.alpha = 0xffff;
1164	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1165
1166	mask_c.alpha = 0;
1167	mask_c.red = 0xffff - c.r;
1168	mask_c.green = 0xffff - c.g;
1169	mask_c.blue = 0xffff - c.b;
1170	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1171	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1172
1173	if (shade > 100)
1174	{
1175	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1176	mask_c.alpha = 0;
1177	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1178
1179	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1180	}
1181
1182	ret = true;
1183	}
1184
1185	XRenderFreePicture (dpy, mask_pic);
1186	XRenderFreePicture (dpy, overlay_pic);
1187	XRenderFreePicture (dpy, back_pic);
1188	# endif
1189	}
1190
1191	return ret;
1192	}
1193
1194	/* make_transparency_pixmap()
1195	* Builds a pixmap of the same size as the terminal window that contains	444	* Builds a pixmap of the same size as the terminal window that contains
1196	* the tiled portion of the root pixmap that is supposed to be covered by	445	* the tiled portion of the root pixmap that is supposed to be covered by
1197	* our window.	446	* our window.
1198	*/	447	*/
1199	unsigned long	448	bool
1200	bgPixmap_t::make_transparency_pixmap ()	449	rxvt_term::render_root_image ()
1201	{	450	{
1202	unsigned long result = 0;
1203
1204	if (target == NULL)
1205	return 0;
1206
1207	/* root dimensions may change from call to call - but Display structure should	451	/* root dimensions may change from call to call - but Display structure should
1208	* be always up-to-date, so let's use it :	452	* be always up-to-date, so let's use it :
1209	*/	453	*/
1210	int screen = target->display->screen;	454	int screen = display->screen;
1211	Display *dpy = target->dpy;
1212	int root_depth = DefaultDepth (dpy, screen);
1213	int root_width = DisplayWidth (dpy, screen);	455	int root_width = DisplayWidth (dpy, screen);
1214	int root_height = DisplayHeight (dpy, screen);	456	int root_height = DisplayHeight (dpy, screen);
1215	unsigned int root_pmap_width, root_pmap_height;
1216	int window_width = target->szHint.width;	457	int parent_width = szHint.width;
1217	int window_height = target->szHint.height;	458	int parent_height = szHint.height;
1218	int sx, sy;	459	int sx, sy;
1219	XGCValues gcv;
1220	GC gc;
1221		460
1222	sx = target_x;	461	sx = parent_x;
1223	sy = target_y;	462	sy = parent_y;
		463
		464	if (!root_img)
		465	return false;
1224		466
1225	/* check if we are outside of the visible part of the virtual screen : */	467	/* check if we are outside of the visible part of the virtual screen : */
1226	if (sx + window_width <= 0 || sy + window_height <= 0	468	if (sx + parent_width <= 0 || sy + parent_height <= 0
1227	|| sx >= root_width || sy >= root_height)	469	|| sx >= root_width || sy >= root_height)
1228	return 0;	470	return 0;
1229		471
1230	// validate root pixmap and get its size	472	while (sx < 0) sx += root_img->w;
1231	if (root_pixmap != None)	473	while (sy < 0) sy += root_img->h;
1232	{
1233	Window wdummy;
1234	int idummy;
1235	unsigned int udummy;
1236		474
1237	target->allowedxerror = -1;	475	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1238		476
1239	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	477	if (root_effects.need_blur ())
1240	root_pixmap = None;	478	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1241		479
1242	target->allowedxerror = 0;	480	if (root_effects.need_tint ())
1243	}	481	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1244		482
1245	Pixmap recoded_root_pmap = root_pixmap;
1246
1247	if (root_pixmap != None && root_depth != target->depth)
1248	{
1249	#if XRENDER
1250	if (flags & HAS_RENDER)
1251	{
1252	XRenderPictureAttributes pa;
1253
1254	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1255	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1256
1257	recoded_root_pmap = XCreatePixmap (dpy, target->vt, root_pmap_width, root_pmap_height, target->depth);
1258	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);	483	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1259	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	484	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1260		485
1261	if (src && dst)	486	delete bg_img;
1262	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	487	bg_img = img;
1263	else
1264	{
1265	XFreePixmap (dpy, recoded_root_pmap);
1266	root_pixmap = None;
1267	}
1268		488
1269	XRenderFreePicture (dpy, src);	489	return true;
1270	XRenderFreePicture (dpy, dst);	490	}
1271	}	491
1272	else	492	void
		493	rxvt_term::bg_set_root_pixmap ()
		494	{
		495	delete root_img;
		496	root_img = rxvt_img::new_from_root (this);
		497	}
		498	# endif /* ENABLE_TRANSPARENCY */
		499
		500	void
		501	rxvt_term::bg_render ()
		502	{
		503	if (bg_flags & BG_INHIBIT_RENDER)
		504	return;
		505
		506	bg_invalidate ();
		507	# if ENABLE_TRANSPARENCY
		508	if (bg_flags & BG_IS_TRANSPARENT)
		509	{
		510	/* we need to re-generate transparency pixmap in that case ! */
		511	if (render_root_image ())
		512	bg_flags |= BG_IS_VALID;
		513	}
		514	# endif
		515
		516	# if BG_IMAGE_FROM_FILE
		517	if (fimage.img)
		518	{
		519	if (render_image (fimage))
		520	bg_flags |= BG_IS_VALID;
		521	}
		522	# endif
		523
		524	if (!(bg_flags & BG_IS_VALID))
		525	{
		526	delete bg_img;
		527	bg_img = 0;
		528	}
		529
		530	scr_recolour (false);
		531	bg_flags |= BG_NEEDS_REFRESH;
		532
		533	bg_valid_since = ev::now ();
		534	}
		535
		536	void
		537	rxvt_term::bg_init ()
		538	{
		539	#if ENABLE_TRANSPARENCY
		540	if (option (Opt_transparent))
		541	{
		542	bg_set_transparent ();
		543
		544	if (rs [Rs_blurradius])
		545	root_effects.set_blur (rs [Rs_blurradius]);
		546
		547	if (ISSET_PIXCOLOR (Color_tint))
		548	root_effects.set_tint (pix_colors_focused [Color_tint]);
		549
		550	if (rs [Rs_shade])
		551	root_effects.set_shade (rs [Rs_shade]);
		552
		553	bg_set_root_pixmap ();
		554	XSelectInput (dpy, display->root, PropertyChangeMask);
		555	rootwin_ev.start (display, display->root);
		556	}
1273	#endif	557	#endif
1274	root_pixmap = None;	558
		559	#if BG_IMAGE_FROM_FILE
		560	if (rs[Rs_backgroundPixmap])
1275	}	561	{
1276		562	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1277	if (root_pixmap == None)	563	if (!bg_window_position_sensitive ())
1278	return 0;	564	update_background ();
1279
1280	Pixmap tiled_root_pmap = XCreatePixmap (dpy, target->vt, window_width, window_height, target->depth);
1281
1282	if (tiled_root_pmap == None) /* something really bad happened - abort */
1283	return 0;
1284
1285	/* straightforward pixmap copy */
1286	while (sx < 0) sx += (int)root_width;
1287	while (sy < 0) sy += (int)root_height;
1288
1289	gcv.tile = recoded_root_pmap;
1290	gcv.fill_style = FillTiled;
1291	gcv.ts_x_origin = -sx;
1292	gcv.ts_y_origin = -sy;
1293	gc = XCreateGC (dpy, target->vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1294
1295	if (gc)
1296	{	565	}
1297	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);	566	#endif
1298	result |= transpPmapTiled;	567	}
1299	XFreeGC (dpy, gc);
1300		568
1301	if (!need_client_side_rendering ())	569	void
1302	{	570	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1303	if ((flags & blurNeeded)	571	{
1304	&& (flags & HAS_RENDER_CONV))	572	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1305	{
1306	if (blur_pixmap (tiled_root_pmap, target->visual, window_width, window_height))
1307	result |= transpPmapBlurred;
1308	}
1309	if ((flags & tintNeeded)
1310	&& (flags & (tintWholesome | HAS_RENDER)))
1311	{
1312	if (tint_pixmap (tiled_root_pmap, target->visual, window_width, window_height))
1313	result |= transpPmapTinted;
1314	}
1315	} /* server side rendering completed */
1316		573
1317	if (pixmap)	574	if (tint_set)
1318	XFreePixmap (dpy, pixmap);	575	tint.get (c);
1319		576
1320	pixmap = tiled_root_pmap;	577	if (shade > 100)
1321	pmap_width = window_width;	578	{
1322	pmap_height = window_height;	579	c.r = c.r * (200 - shade) / 100;
1323	pmap_depth = target->depth;	580	c.g = c.g * (200 - shade) / 100;
		581	c.b = c.b * (200 - shade) / 100;
1324	}	582	}
1325	else	583	else
1326	XFreePixmap (dpy, tiled_root_pmap);
1327
1328	if (recoded_root_pmap != root_pixmap)
1329	XFreePixmap (dpy, recoded_root_pmap);
1330
1331	return result;
1332	}
1333
1334	void
1335	bgPixmap_t::set_root_pixmap ()
1336	{
1337	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1338	if (new_root_pixmap == None)
1339	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1340
1341	root_pixmap = new_root_pixmap;
1342	}
1343	# endif /* ENABLE_TRANSPARENCY */
1344
1345	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1346	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1347	# endif
1348
1349	bool
1350	bgPixmap_t::render ()
1351	{
1352	unsigned long background_flags = 0;
1353
1354	if (target == NULL)
1355	return false;
1356
1357	invalidate ();
1358	# ifdef ENABLE_TRANSPARENCY
1359	if (flags & isTransparent)
1360	{
1361	/* we need to re-generate transparency pixmap in that case ! */
1362	background_flags = make_transparency_pixmap ();
1363	if (background_flags == 0)
1364	return false;
1365	else if ((background_flags & transpTransformations) == (flags & transpTransformations))
1366	flags &= ~isInvalid;
1367	}	584	{
1368	# endif	585	c.r = c.r * shade / 100;
1369		586	c.g = c.g * shade / 100;
1370	# ifdef BG_IMAGE_FROM_FILE	587	c.b = c.b * shade / 100;
1371	if (have_image
1372	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1373	{	588	}
1374	if (render_image (background_flags))	589
1375	flags &= ~isInvalid;	590	img->contrast (c.r, c.g, c.b, c.a);
		591
		592	if (shade > 100)
1376	}	593	{
1377	# endif	594	c.a = 0xffff;
1378		595	c.r =
1379	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	596	c.g =
1380	XImage *result = NULL;	597	c.b = 0xffff * (shade - 100) / 100;
1381		598	img->brightness (c.r, c.g, c.b, c.a);
1382	if (background_flags && (flags & isInvalid))
1383	{	599	}
1384	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1385	}
1386
1387	if (result)
1388	{
1389	/* our own client-side tinting */
1390	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
1391	{
1392	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1393	if (flags & tintSet)
1394	tint.get (c);
1395	shade_ximage (DefaultVisual (target->dpy, target->display->screen), result, shade, c);
1396	}
1397
1398	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1399
1400	if (gc)
1401	{
1402	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1403
1404	XFreeGC (target->dpy, gc);
1405	flags &= ~isInvalid;
1406	}
1407
1408	XDestroyImage (result);
1409	}
1410	# endif
1411
1412	if (flags & isInvalid)
1413	{
1414	if (pixmap != None)
1415	{
1416	XFreePixmap (target->dpy, pixmap);
1417	pixmap = None;
1418	}
1419	}
1420
1421	apply ();
1422
1423	valid_since = ev::now ();
1424
1425	return true;
1426	}
1427
1428	void
1429	bgPixmap_t::set_target (rxvt_term *new_target)
1430	{
1431	target = new_target;
1432
1433	flags &= ~(HAS_RENDER | HAS_RENDER_CONV);
1434	#if XRENDER
1435	int major, minor;
1436	if (XRenderQueryVersion (target->dpy, &major, &minor))
1437	flags |= HAS_RENDER;
1438	XFilters *filters = XRenderQueryFilters (target->dpy, target->vt);
1439	if (filters)
1440	{
1441	for (int i = 0; i < filters->nfilter; i++)
1442	if (!strcmp (filters->filter[i], FilterConvolution))
1443	flags |= HAS_RENDER_CONV;
1444
1445	XFree (filters);
1446	}
1447	#endif
1448	}
1449
1450	void
1451	bgPixmap_t::apply ()
1452	{
1453	if (target == NULL)
1454	return;
1455
1456	if (pixmap != None)
1457	{
1458	/* set target's background to pixmap */
1459	# ifdef ENABLE_TRANSPARENCY
1460	if (flags & isTransparent)
1461	{
1462	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1463	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1464
1465	if (target->scrollBar.win)
1466	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1467	}
1468	else
1469	# endif
1470	{
1471	/* force old pixmap dereference in case it was transparent before :*/
1472	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1473	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1474	/* do we also need to set scrollbar's background here ? */
1475
1476	if (target->scrollBar.win)
1477	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1478	}
1479	}
1480	else
1481	{
1482	/* set target background to a pixel */
1483	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1484	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);
1485	/* do we also need to set scrollbar's background here ? */
1486	if (target->scrollBar.win)
1487	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1488	}
1489
1490	/* don't want Expose on the parent or vt. It is better to use
1491	scr_touch or we get a great deal of flicker otherwise: */
1492	XClearWindow (target->dpy, target->parent[0]);
1493
1494	if (target->scrollBar.state && target->scrollBar.win)
1495	{
1496	target->scrollBar.state = STATE_IDLE;
1497	target->scrollBar.show (0);
1498	}
1499
1500	target->want_refresh = 1;
1501	flags |= hasChanged;
1502	}	600	}
1503		601
1504	#endif /* HAVE_BG_PIXMAP */	602	#endif /* HAVE_BG_PIXMAP */
1505
1506	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1507	/* taken from aterm-0.4.2 */
1508
1509	static void
1510	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1511	{
1512	int sh_r, sh_g, sh_b;
1513	uint32_t mask_r, mask_g, mask_b;
1514	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1515	rgba low;
1516	rgba high;
1517	int i;
1518	int host_byte_order = byteorder.big_endian () ? MSBFirst : LSBFirst;
1519
1520	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1521
1522	/* for convenience */
1523	mask_r = visual->red_mask;
1524	mask_g = visual->green_mask;
1525	mask_b = visual->blue_mask;
1526
1527	/* boring lookup table pre-initialization */
1528	switch (ximage->depth)
1529	{
1530	case 15:
1531	if ((mask_r != 0x7c00) ||
1532	(mask_g != 0x03e0) ||
1533	(mask_b != 0x001f))
1534	return;
1535	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1536	lookup_r = lookup;
1537	lookup_g = lookup+32;
1538	lookup_b = lookup+32+32;
1539	sh_r = 10;
1540	sh_g = 5;
1541	sh_b = 0;
1542	break;
1543	case 16:
1544	if ((mask_r != 0xf800) ||
1545	(mask_g != 0x07e0) ||
1546	(mask_b != 0x001f))
1547	return;
1548	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1549	lookup_r = lookup;
1550	lookup_g = lookup+32;
1551	lookup_b = lookup+32+64;
1552	sh_r = 11;
1553	sh_g = 5;
1554	sh_b = 0;
1555	break;
1556	case 24:
1557	if ((mask_r != 0xff0000) ||
1558	(mask_g != 0x00ff00) ||
1559	(mask_b != 0x0000ff))
1560	return;
1561	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1562	lookup_r = lookup;
1563	lookup_g = lookup+256;
1564	lookup_b = lookup+256+256;
1565	sh_r = 16;
1566	sh_g = 8;
1567	sh_b = 0;
1568	break;
1569	case 32:
1570	if ((mask_r != 0xff0000) ||
1571	(mask_g != 0x00ff00) ||
1572	(mask_b != 0x0000ff))
1573	return;
1574	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1575	lookup_r = lookup;
1576	lookup_g = lookup+256;
1577	lookup_b = lookup+256+256;
1578	sh_r = 16;
1579	sh_g = 8;
1580	sh_b = 0;
1581	break;
1582	default:
1583	return; /* we do not support this color depth */
1584	}
1585
1586	/* prepare limits for color transformation (each channel is handled separately) */
1587	if (shade > 100)
1588	{
1589	shade = 200 - shade;
1590
1591	high.r = c.r * shade / 100;
1592	high.g = c.g * shade / 100;
1593	high.b = c.b * shade / 100;
1594
1595	low.r = 65535 * (100 - shade) / 100;
1596	low.g = 65535 * (100 - shade) / 100;
1597	low.b = 65535 * (100 - shade) / 100;
1598	}
1599	else
1600	{
1601	high.r = c.r * shade / 100;
1602	high.g = c.g * shade / 100;
1603	high.b = c.b * shade / 100;
1604
1605	low.r = low.g = low.b = 0;
1606	}
1607
1608	/* fill our lookup tables */
1609	for (i = 0; i <= mask_r>>sh_r; i++)
1610	{
1611	uint32_t tmp;
1612	tmp = i * high.r;
1613	tmp += (mask_r>>sh_r) * low.r;
1614	lookup_r[i] = (tmp/65535)<<sh_r;
1615	}
1616	for (i = 0; i <= mask_g>>sh_g; i++)
1617	{
1618	uint32_t tmp;
1619	tmp = i * high.g;
1620	tmp += (mask_g>>sh_g) * low.g;
1621	lookup_g[i] = (tmp/65535)<<sh_g;
1622	}
1623	for (i = 0; i <= mask_b>>sh_b; i++)
1624	{
1625	uint32_t tmp;
1626	tmp = i * high.b;
1627	tmp += (mask_b>>sh_b) * low.b;
1628	lookup_b[i] = (tmp/65535)<<sh_b;
1629	}
1630
1631	/* apply table to input image (replacing colors by newly calculated ones) */
1632	if (ximage->bits_per_pixel == 32
1633	&& (ximage->depth == 24 || ximage->depth == 32)
1634	&& ximage->byte_order == host_byte_order)
1635	{
1636	uint32_t *p1, *pf, *p, *pl;
1637	p1 = (uint32_t *) ximage->data;
1638	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1639
1640	while (p1 < pf)
1641	{
1642	p = p1;
1643	pl = p1 + ximage->width;
1644	for (; p < pl; p++)
1645	{
1646	*p = lookup_r[(*p & 0xff0000) >> 16] |
1647	lookup_g[(*p & 0x00ff00) >> 8] |
1648	lookup_b[(*p & 0x0000ff)] |
1649	(*p & 0xff000000);
1650	}
1651	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1652	}
1653	}
1654	else
1655	{
1656	for (int y = 0; y < ximage->height; y++)
1657	for (int x = 0; x < ximage->width; x++)
1658	{
1659	unsigned long pixel = XGetPixel (ximage, x, y);
1660	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1661	lookup_g[(pixel & mask_g) >> sh_g] |
1662	lookup_b[(pixel & mask_b) >> sh_b];
1663	XPutPixel (ximage, x, y, pixel);
1664	}
1665	}
1666
1667	free (lookup);
1668	}
1669	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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