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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.120 by sf-exg, Thu Nov 18 17:29:25 2010 UTC vs.
Revision 1.255 by sf-exg, Mon Dec 31 12:05:34 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 ()
87	{
88	// this is basically redundant as bgPixmap_t is only used in
89	// zero_initialised-derived structs
90	#ifdef HAVE_AFTERIMAGE
91	original_asim = NULL;
92	#endif
93	#ifdef HAVE_PIXBUF
94	pixbuf = NULL;
95	#endif
96	#ifdef BG_IMAGE_FROM_FILE
97	have_image = false;
98	h_scale = v_scale = 0;
99	h_align = v_align = 0;
100	#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	}
109		29
110	void	30	void
111	bgPixmap_t::destroy ()	31	rxvt_term::bg_destroy ()
112	{	32	{
113	#ifdef HAVE_AFTERIMAGE	33	# if BG_IMAGE_FROM_ROOT
114	if (original_asim)	34	delete root_img;
115	safe_asimage_destroy (original_asim);	35	root_img = 0;
116	#endif	36	# endif
117		37
118	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
119	if (pixbuf)	39	fimage.destroy ();
120	g_object_unref (pixbuf);
121	#endif	40	# endif
122
123	if (pixmap && target)
124	XFreePixmap (target->dpy, pixmap);
125	}	41	}
126		42
127	bool	43	bool
128	bgPixmap_t::window_size_sensitive ()	44	rxvt_term::bg_window_size_sensitive ()
129	{	45	{
130	# ifdef ENABLE_TRANSPARENCY	46	# if BG_IMAGE_FROM_ROOT
131	if (flags & isTransparent)	47	if (root_img)
132	return true;	48	return true;
133	# endif	49	# endif
134		50
135	# ifdef BG_IMAGE_FROM_FILE	51	# if BG_IMAGE_FROM_FILE
136	if (have_image)	52	if (fimage.img)
137	{	53	{
138	if (flags & sizeSensitive)	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
139	return true;	57	return true;
140	}	58	}
141	# endif	59	# endif
142		60
143	return false;	61	return false;
144	}	62	}
145		63
146	bool	64	bool
147	bgPixmap_t::window_position_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
148	{	66	{
149	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
150	if (flags & isTransparent)	68	if (root_img)
151	return true;	69	return true;
152	# endif	70	# endif
153		71
154	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
155	if (have_image)	73	if (fimage.img)
156	{	74	{
157	if (flags & rootAlign)	75	if (fimage.flags & IM_ROOT_ALIGN)
158	return true;	76	return true;
159	}	77	}
160	# endif	78	# endif
161		79
162	return false;	80	return false;
163	}	81	}
164		82
165	bool bgPixmap_t::need_client_side_rendering ()
166	{
167	# ifdef HAVE_AFTERIMAGE
168	if (original_asim)
169	return true;
170	# endif
171	return false;
172	}
173
174	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
175	static inline bool
176	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
177	{
178	if (geom_flags & flag)
179	{
180	if (new_value > 1000)
181	new_value = 1000;
182	if (new_value != scale)
183	{
184	scale = new_value;
185	return true;
186	}
187	}
188	return false;
189	}
190
191	static inline bool
192	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
193	{
194	if (geom_flags & flag)
195	{
196	if (new_value < -100)
197	new_value = -100;
198	else if (new_value > 200)
199	new_value = 200;
200	if (new_value != align)
201	{
202	align = new_value;
203	return true;
204	}
205	}
206	return false;
207	}
208
209	static inline int	84	static inline int
210	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
211	{	86	{
212	int diff = window_size - image_size;
213	int smaller = min (image_size, window_size);
214
215	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
216	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
217	else if (align > 100 && align <= 200)	89	else if (align > 100)
218	return ((align - 100) * smaller / 100) + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
219	else if (align >= -100 && align < 0)	91	else
220	return ((align + 100) * smaller / 100) - image_size;	92	return lerp (-image_size, 0, align + 100);
221	return 0;
222	}	93	}
223		94
224	static inline int	95	static void
225	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)
226	{	97	{
227	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
228	dst_pos = pos;
229	dst_size = size;
230	if (pos < 0)
231	{
232	src_pos = -pos;
233	dst_pos = 0;
234	dst_size += pos;
235	}	99	{
236		100	flags = IM_TILE;
237	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
238	dst_size = target_size - dst_pos;	102	x = y = 0;
239	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	}
240	}	128	}
241		129
242	bool	130	bool
243	bgPixmap_t::set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
244	{	132	{
245	bool changed = false;	133	bool changed = false;
246	int geom_flags = 0;	134	int geom_flags = 0;
247	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
248	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
249	unsigned int n;	138	unsigned int h = v_scale;
250	unsigned long new_flags = (flags & (~geometryFlags));	139	uint8_t new_flags = 0;
251	const char *ops;
252	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
253		140
254	if (geom == NULL)	141	if (geom == NULL)
255	return false;	142	return false;
256		143
257	char str[MAXLEN_GEOM];	144	if (geom[0])
		145	{
		146	char **arr = rxvt_strsplit (':', geom);
258		147
259	ops = strchr (geom, ':');	148	for (int i = 0; arr[i]; i++)
260	if (ops == NULL)	149	{
261	n = strlen (geom);	150	if (!strncasecmp (arr[i], "style=", 6))
		151	{
		152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		153	geom_flags = WidthValue|HeightValue|XValue|YValue;
		154	}
		155	else if (!strcasecmp (arr[i], "op=tile"))
		156	new_flags |= IM_TILE;
		157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		158	new_flags |= IM_KEEP_ASPECT;
		159	else if (!strcasecmp (arr[i], "op=root-align"))
		160	new_flags |= IM_ROOT_ALIGN;
		161
		162	// deprecated
		163	else if (!strcasecmp (arr[i], "tile"))
		164	{
		165	new_flags |= IM_TILE;
		166	w = h = noScale;
		167	geom_flags |= WidthValue|HeightValue;
		168	}
		169	else if (!strcasecmp (arr[i], "propscale"))
		170	{
		171	new_flags |= IM_KEEP_ASPECT;
		172	w = h = windowScale;
		173	geom_flags |= WidthValue|HeightValue;
		174	}
		175	else if (!strcasecmp (arr[i], "hscale"))
		176	{
		177	new_flags |= IM_TILE;
		178	w = windowScale;
		179	h = noScale;
		180	geom_flags |= WidthValue|HeightValue;
		181	}
		182	else if (!strcasecmp (arr[i], "vscale"))
		183	{
		184	new_flags |= IM_TILE;
		185	h = windowScale;
		186	w = noScale;
		187	geom_flags |= WidthValue|HeightValue;
		188	}
		189	else if (!strcasecmp (arr[i], "scale"))
		190	{
		191	w = h = windowScale;
		192	geom_flags |= WidthValue|HeightValue;
		193	}
		194	else if (!strcasecmp (arr[i], "auto"))
		195	{
		196	w = h = windowScale;
		197	x = y = centerAlign;
		198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		199	}
		200	else if (!strcasecmp (arr[i], "root"))
		201	{
		202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		203	w = h = noScale;
		204	geom_flags |= WidthValue|HeightValue;
		205	}
		206
		207	else
		208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
		209	} /* done parsing ops */
		210
		211	rxvt_free_strsplit (arr);
		212	}
		213
		214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
		215
		216	if (!update)
		217	{
		218	if (!(geom_flags & XValue))
		219	x = y = defaultAlign;
		220	else if (!(geom_flags & YValue))
		221	y = x;
		222
		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)
		239	{
		240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
		245	changed = true;
		246	}
		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
262	else	250	else
263	n = ops - geom;	251	flags &= ~IM_IS_SIZE_SENSITIVE;
264
265	if (n < MAXLEN_GEOM)
266	{
267	memcpy (str, geom, n);
268	str[n] = '\0';
269	rxvt_strtrim (str);
270
271	if (str[0])
272	{
273	/* we have geometry string - let's handle it prior to applying ops */
274	geom_flags = XParseGeometry (str, &x, &y, &w, &h);
275	} /* done parsing geometry string */
276
277	if (!update)
278	{
279	if (!(geom_flags & XValue))
280	x = y = defaultAlign;
281	else if (!(geom_flags & YValue))
282	y = x;
283
284	if (!(geom_flags & (WidthValue|HeightValue)))
285	w = h = defaultScale;
286	else if (!(geom_flags & HeightValue))
287	h = w;
288	else if (!(geom_flags & WidthValue))
289	w = h;
290
291	geom_flags |= WidthValue|HeightValue|XValue|YValue;
292	}
293
294	if (ops)
295	{
296	while (*ops)
297	{
298	while (*ops == ':' || isspace(*ops)) ++ops;
299
300	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)
301	if (CHECK_GEOM_OPS ("tile"))
302	{
303	w = h = noScale;
304	geom_flags |= WidthValue|HeightValue;
305	}
306	else if (CHECK_GEOM_OPS ("propscale"))
307	{
308	new_flags |= propScale;
309	}
310	else if (CHECK_GEOM_OPS ("hscale"))
311	{
312	if (w == 0) w = windowScale;
313
314	h = noScale;
315	geom_flags |= WidthValue|HeightValue;
316	}
317	else if (CHECK_GEOM_OPS ("vscale"))
318	{
319	if (h == 0) h = windowScale;
320
321	w = noScale;
322	geom_flags |= WidthValue|HeightValue;
323	}
324	else if (CHECK_GEOM_OPS ("scale"))
325	{
326	if (h == 0) h = windowScale;
327	if (w == 0) w = windowScale;
328
329	geom_flags |= WidthValue|HeightValue;
330	}
331	else if (CHECK_GEOM_OPS ("auto"))
332	{
333	w = h = windowScale;
334	x = y = centerAlign;
335	geom_flags |= WidthValue|HeightValue|XValue|YValue;
336	}
337	else if (CHECK_GEOM_OPS ("root"))
338	{
339	new_flags |= rootAlign;
340	w = h = noScale;
341	geom_flags |= WidthValue|HeightValue;
342	}
343	# undef CHECK_GEOM_OPS
344
345	while (*ops != ':' && *ops != '\0') ++ops;
346	} /* done parsing ops */
347	}
348
349	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
350	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
351	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
352	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
353	}
354
355	if (new_flags != flags)
356	{
357	flags = new_flags;
358	changed = true;
359	}
360		252
361	return changed;	253	return changed;
362	}	254	}
363		255
364	void	256	bool
365	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)
366	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
367	int target_width = target->szHint.width;	261	int parent_width = szHint.width;
368	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);
369		265
370	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)
371	{	275	{
372	float scale = (float)target_width / image_width;	276	float scale = (float)w / image_width;
373	min_it (scale, (float)target_height / image_height);	277	min_it (scale, (float)h / image_height);
374	w = image_width * scale + 0.5;	278	w = image_width * scale + 0.5;
375	h = image_height * scale + 0.5;	279	h = image_height * scale + 0.5;
376	}	280	}
377	else
378	{
379	w = h_scale * target_width / 100;
380	h = v_scale * target_height / 100;
381	}
382		281
383	if (!w) w = image_width;	282	if (!w) w = image_width;
384	if (!h) h = image_height;	283	if (!h) h = image_height;
385		284
386	if (flags & rootAlign)	285	if (image.flags & IM_ROOT_ALIGN)
387	{	286	{
388	target->get_window_origin (x, y);
389	x = -x;	287	x = -parent_x;
390	y = -y;	288	y = -parent_y;
391	}	289	}
392	else	290	else
393	{	291	{
394	x = make_align_position (h_align, target_width, w);	292	x = make_align_position (image.h_align, parent_width, w);
395	y = make_align_position (v_align, target_height, h);	293	y = make_align_position (image.v_align, parent_height, h);
396	}	294	}
397		295
398	flags &= ~sizeSensitive;	296	if (!(image.flags & IM_ROOT_ALIGN)
399	if ((flags & propScale) || h_scale || v_scale	297	&& (x >= parent_width
400	|| (!(flags & rootAlign) && (h_align || v_align))	298	|| y >= parent_height
401	|| w > target_width || h > target_height)	299	|| x + w <= 0
402	flags |= sizeSensitive;	300	|| y + h <= 0))
403	}
404
405	# ifdef HAVE_AFTERIMAGE
406	bool
407	bgPixmap_t::render_image (unsigned long background_flags)
408	{
409	if (target == NULL)
410	return false;	301	return false;
411		302
412	target->init_asv ();	303	rxvt_img *img = image.img->scale (w, h);
413		304
414	ASImage *background = NULL;	305	if (image.flags & IM_TILE)
415	ARGB32 background_tint = TINT_LEAVE_SAME;	306	img->repeat_mode (RepeatNormal);
416
417	# ifdef ENABLE_TRANSPARENCY
418	if (background_flags)
419	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
420
421	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
422	{
423	ShadingInfo as_shade;
424	as_shade.shading = shade;
425
426	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
427	if (flags & tintSet)
428	tint.get (c);
429	as_shade.tintColor.red = c.r;
430	as_shade.tintColor.green = c.g;
431	as_shade.tintColor.blue = c.b;
432
433	background_tint = shading2tint32 (&as_shade);
434	}
435
436	if (!(background_flags & transpPmapBlurred) && (flags & blurNeeded) && background != NULL)
437	{
438	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
439	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
440	100, ASIMAGE_QUALITY_DEFAULT);
441	if (tmp)
442	{
443	destroy_asimage (&background);
444	background = tmp;
445	}
446	}
447	# endif
448
449	ASImage *result = 0;
450
451	int target_width = target->szHint.width;
452	int target_height = target->szHint.height;
453	int new_pmap_width = target_width;
454	int new_pmap_height = target_height;
455
456	int x = 0;
457	int y = 0;
458	int w = 0;
459	int h = 0;
460
461	if (original_asim)
462	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
463
464	if (!original_asim
465	|| (!(flags & rootAlign)
466	&& (x >= target_width
467	|| y >= target_height
468	|| (x + w <= 0)
469	|| (y + h <= 0))))
470	{
471	if (background)
472	{
473	new_pmap_width = background->width;
474	new_pmap_height = background->height;
475	result = background;
476
477	if (background_tint != TINT_LEAVE_SAME)
478	{
479	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,
480	target_width, target_height, background_tint,
481	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
482	if (tmp)
483	result = tmp;
484	}
485	}
486	else
487	new_pmap_width = new_pmap_height = 0;
488	}
489	else	307	else
490	{	308	img->repeat_mode (RepeatNone);
491	result = original_asim;	309	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
492		310
493	if ((w != original_asim->width)	311	if (bg_img)
494	|| (h != original_asim->height))	312	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
495	{
496	result = scale_asimage (target->asv, original_asim,
497	w, h,
498	background ? ASA_ASImage : ASA_XImage,
499	100, ASIMAGE_QUALITY_DEFAULT);
500	}
501		313
502	if (background == NULL)	314	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
503	{	315	img->convert_format (format, pix_colors [Color_bg])->replace (img);
504	if (h_scale == 0 || v_scale == 0)
505	{
506	/* if tiling - pixmap has to be sized exactly as the image,
507	but there is no need to make it bigger than the window! */
508	new_pmap_width = min (result->width, target_width);
509	new_pmap_height = min (result->height, target_height);
510		316
511	/* we also need to tile our image in both directions */	317	delete bg_img;
512	ASImage *tmp = tile_asimage (target->asv, result,	318	bg_img = img;
513	(int)result->width - x,
514	(int)result->height - y,
515	new_pmap_width,
516	new_pmap_height,
517	TINT_LEAVE_SAME, ASA_XImage,
518	100, ASIMAGE_QUALITY_DEFAULT);
519	if (tmp)
520	{
521	if (result != original_asim)
522	destroy_asimage (&result);
523		319
524	result = tmp;
525	}
526	}
527	}
528	else
529	{
530	/* if blending background and image - pixmap has to be sized same as target window */
531	ASImageLayer *layers = create_image_layers (2);
532
533	layers[0].im = background;
534	layers[0].clip_width = target_width;
535	layers[0].clip_height = target_height;
536	layers[0].tint = background_tint;
537	layers[1].im = result;
538
539	if (h_scale == 0 || v_scale == 0)
540	{
541	/* tile horizontally */
542	while (x > 0) x -= (int)result->width;
543	layers[1].dst_x = x;
544	layers[1].clip_width = result->width+target_width;
545	}
546	else
547	{
548	/* clip horizontally */
549	layers[1].dst_x = x;
550	layers[1].clip_width = result->width;
551	}
552
553	if (h_scale == 0 || v_scale == 0)
554	{
555	while (y > 0) y -= (int)result->height;
556	layers[1].dst_y = y;
557	layers[1].clip_height = result->height + target_height;
558	}
559	else
560	{
561	layers[1].dst_y = y;
562	layers[1].clip_height = result->height;
563	}
564
565	if (target->rs[Rs_blendtype])
566	{
567	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
568	if (layers[1].merge_scanlines == NULL)
569	layers[1].merge_scanlines = alphablend_scanlines;
570	}
571
572	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
573	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
574
575	if (tmp)
576	{
577	if (result != original_asim)
578	destroy_asimage (&result);
579
580	result = tmp;
581	}
582
583	free (layers);
584	}
585	}
586
587	bool ret = false;
588
589	if (result)
590	{
591	XGCValues gcv;
592	GC gc;
593
594	/* create Pixmap */
595	if (pixmap == None
596	|| pmap_width != new_pmap_width
597	|| pmap_height != new_pmap_height
598	|| pmap_depth != target->depth)
599	{
600	if (pixmap)
601	XFreePixmap (target->dpy, pixmap);
602	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
603	pmap_width = new_pmap_width;
604	pmap_height = new_pmap_height;
605	pmap_depth = target->depth;
606	}
607	/* fill with background color (if result's not completely overlapping it) */
608	gcv.foreground = target->pix_colors[Color_bg];
609	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
610
611	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
612	int dst_width = result->width, dst_height = result->height;
613	if (background == NULL)
614	{
615	if (!(h_scale == 0 || v_scale == 0))
616	{
617	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
618	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
619	}
620
621	if (dst_x > 0 || dst_y > 0
622	|| dst_x + dst_width < new_pmap_width
623	|| dst_y + dst_height < new_pmap_height)
624	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
625	}
626
627	/* put result on pixmap */
628	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
629	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
630
631	if (result != background && result != original_asim)
632	destroy_asimage (&result);
633
634	XFreeGC (target->dpy, gc);
635
636	ret = true;
637	}
638
639	if (background)
640	destroy_asimage (&background);
641
642	return ret;	320	return true;
643	}	321	}
644	# endif /* HAVE_AFTERIMAGE */
645		322
646	# ifdef HAVE_PIXBUF	323	rxvt_image::rxvt_image ()
647	bool
648	bgPixmap_t::render_image (unsigned long background_flags)
649	{	324	{
650	if (target == NULL)	325	alpha = 0xffff;
651	return false;	326	flags = 0;
		327	h_scale =
		328	v_scale = defaultScale;
		329	h_align =
		330	v_align = defaultAlign;
652		331
653	if (!pixbuf)	332	img = 0;
654	return false;
655
656	if (background_flags
657	&& !(flags & HAS_RENDER))
658	return false;
659
660	GdkPixbuf *result;
661
662	int image_width = gdk_pixbuf_get_width (pixbuf);
663	int image_height = gdk_pixbuf_get_height (pixbuf);
664
665	int target_width = target->szHint.width;
666	int target_height = target->szHint.height;
667	int new_pmap_width = target_width;
668	int new_pmap_height = target_height;
669
670	int x = 0;
671	int y = 0;
672	int w = 0;
673	int h = 0;
674
675	get_image_geometry (image_width, image_height, w, h, x, y);
676
677	if (!(flags & rootAlign)
678	&& (x >= target_width
679	|| y >= target_height
680	|| (x + w <= 0)
681	|| (y + h <= 0)))
682	return false;
683
684	result = pixbuf;
685
686	if ((w != image_width)
687	|| (h != image_height))
688	{
689	result = gdk_pixbuf_scale_simple (pixbuf,
690	w, h,
691	GDK_INTERP_BILINEAR);
692	}
693
694	bool ret = false;
695
696	if (result)
697	{
698	XGCValues gcv;
699	GC gc;
700	Pixmap root_pmap;
701
702	image_width = gdk_pixbuf_get_width (result);
703	image_height = gdk_pixbuf_get_height (result);
704
705	if (background_flags)
706	{
707	root_pmap = pixmap;
708	pixmap = None;
709	}
710	else
711	{
712	if (h_scale == 0 || v_scale == 0)
713	{
714	new_pmap_width = min (image_width, target_width);
715	new_pmap_height = min (image_height, target_height);
716	}
717	}
718
719	if (pixmap == None
720	|| pmap_width != new_pmap_width
721	|| pmap_height != new_pmap_height
722	|| pmap_depth != target->depth)
723	{
724	if (pixmap)
725	XFreePixmap (target->dpy, pixmap);
726	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
727	pmap_width = new_pmap_width;
728	pmap_height = new_pmap_height;
729	pmap_depth = target->depth;
730	}
731
732	gcv.foreground = target->pix_colors[Color_bg];
733	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
734
735	if (h_scale == 0 || v_scale == 0)
736	{
737	Pixmap tile = XCreatePixmap (target->dpy, target->vt, image_width, image_height, target->depth);
738	gdk_pixbuf_xlib_render_to_drawable (result, tile, gc,
739	0, 0,
740	0, 0,
741	image_width, image_height,
742	XLIB_RGB_DITHER_NONE,
743	0, 0);
744
745	gcv.tile = tile;
746	gcv.fill_style = FillTiled;
747	gcv.ts_x_origin = x;
748	gcv.ts_y_origin = y;
749	XChangeGC (target->dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
750
751	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
752	XFreePixmap (target->dpy, tile);
753	}
754	else
755	{
756	int src_x, src_y, dst_x, dst_y;
757	int dst_width, dst_height;
758
759	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
760	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
761
762	if (dst_x > 0 || dst_y > 0
763	|| dst_x + dst_width < new_pmap_width
764	|| dst_y + dst_height < new_pmap_height)
765	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
766
767	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
768	gdk_pixbuf_xlib_render_to_drawable (result, pixmap, gc,
769	src_x, src_y,
770	dst_x, dst_y,
771	dst_width, dst_height,
772	XLIB_RGB_DITHER_NONE,
773	0, 0);
774	}
775
776	#if XRENDER
777	if (background_flags)
778	{
779	Display *dpy = target->dpy;
780	XRenderPictureAttributes pa;
781
782	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, target->visual);
783	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
784
785	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);
786	Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);
787
788	pa.repeat = True;
789	Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);
790	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
791	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
792	XFreePixmap (dpy, mask_pmap);
793
794	if (src && dst && mask)
795	{
796	XRenderColor mask_c;
797
798	mask_c.alpha = 0x8000;
799	mask_c.red = 0;
800	mask_c.green = 0;
801	mask_c.blue = 0;
802	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
803	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
804	}
805
806	XRenderFreePicture (dpy, src);
807	XRenderFreePicture (dpy, dst);
808	XRenderFreePicture (dpy, mask);
809
810	XFreePixmap (dpy, root_pmap);
811	}
812	#endif
813
814	if (result != pixbuf)
815	g_object_unref (result);
816
817	XFreeGC (target->dpy, gc);
818
819	ret = true;
820	}
821
822	return ret;
823	}	333	}
824	# endif /* HAVE_PIXBUF */
825		334
826	bool	335	void
827	bgPixmap_t::set_file (const char *file)	336	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
828	{	337	{
829	if (!file || !*file)	338	if (!file || !*file)
830	return false;	339	return;
831		340
832	if (const char *p = strchr (file, ';'))	341	const char *p = strchr (file, ';');
		342
		343	if (p)
833	{	344	{
834	size_t len = p - file;	345	size_t len = p - file;
835	char *f = rxvt_temp_buf<char> (len + 1);	346	char *f = rxvt_temp_buf<char> (len + 1);
836	memcpy (f, file, len);	347	memcpy (f, file, len);
837	f[len] = '\0';	348	f[len] = '\0';
838	file = f;	349	file = f;
839	}	350	}
840		351
841	# ifdef HAVE_AFTERIMAGE	352	set_file (s, file);
842	if (!target->asimman)	353	alpha = 0x8000;
843	target->asimman = create_generic_imageman (target->rs[Rs_path]);	354	set_geometry (p ? p + 1 : "");
844	ASImage *image = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	355	}
845	if (image)
846	{
847	if (original_asim)
848	safe_asimage_destroy (original_asim);
849	original_asim = image;
850	have_image = true;
851	return true;
852	}
853	# endif
854		356
855	# ifdef HAVE_PIXBUF	357	void
856	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	358	rxvt_image::set_file (rxvt_screen *s, const char *file)
857	if (image)	359	{
858	{	360	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
859	if (pixbuf)	361	delete img;
860	g_object_unref (pixbuf);	362	img = img2;
861	pixbuf = image;
862	have_image = true;
863	return true;
864	}
865	# endif
866
867	return false;
868	}	363	}
869		364
870	# endif /* BG_IMAGE_FROM_FILE */	365	# endif /* BG_IMAGE_FROM_FILE */
871		366
872	# ifdef ENABLE_TRANSPARENCY
873	bool	367	bool
874	bgPixmap_t::set_transparent ()
875	{
876	if (!(flags & isTransparent))
877	{
878	flags |= isTransparent;
879	return true;
880	}
881
882	return false;
883	}
884
885	bool
886	bgPixmap_t::set_blur_radius (const char *geom)	368	image_effects::set_blur (const char *geom)
887	{	369	{
888	bool changed = false;	370	bool changed = false;
889	unsigned int hr, vr;	371	unsigned int hr, vr;
890	int junk;	372	int junk;
891	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	373	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
908	{	390	{
909	changed = true;	391	changed = true;
910	v_blurRadius = vr;	392	v_blurRadius = vr;
911	}	393	}
912		394
913	if (v_blurRadius == 0 && h_blurRadius == 0)
914	flags &= ~blurNeeded;
915	else
916	flags |= blurNeeded;
917
918	return changed;	395	return changed;
919	}	396	}
920		397
921	static inline unsigned long
922	compute_tint_shade_flags (rxvt_color *tint, int shade)
923	{
924	unsigned long flags = 0;
925	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
926	bool has_shade = shade != 100;
927
928	if (tint)
929	{
930	tint->get (c);
931	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)
932	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)
933	&& IS_COMPONENT_WHOLESOME (c.g)
934	&& IS_COMPONENT_WHOLESOME (c.b))
935	flags |= bgPixmap_t::tintWholesome;
936	# undef IS_COMPONENT_WHOLESOME
937	}
938
939	if (has_shade)
940	flags |= bgPixmap_t::tintNeeded;
941	else if (tint)
942	{
943	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)
944	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))
945	{
946	flags |= bgPixmap_t::tintNeeded;
947	}
948	}
949
950	return flags;
951	}
952
953	bool	398	bool
954	bgPixmap_t::set_tint (rxvt_color &new_tint)	399	image_effects::set_tint (const rxvt_color &new_tint)
955	{	400	{
956	if (!(flags & tintSet) || tint != new_tint)	401	if (!tint_set || tint != new_tint)
957	{	402	{
958	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
959	tint = new_tint;	403	tint = new_tint;
960	flags = (flags & ~tintFlags) | new_flags | tintSet;	404	tint_set = true;
		405
961	return true;	406	return true;
962	}	407	}
963		408
964	return false;	409	return false;
965	}	410	}
966		411
967	bool	412	bool
968	bgPixmap_t::unset_tint ()
969	{
970	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
971
972	if (new_flags != (flags & tintFlags))
973	{
974	flags = (flags & ~tintFlags) | new_flags;
975	return true;
976	}
977
978	return false;
979	}
980
981	bool
982	bgPixmap_t::set_shade (const char *shade_str)	413	image_effects::set_shade (const char *shade_str)
983	{	414	{
984	int new_shade = (shade_str) ? atoi (shade_str) : 100;	415	int new_shade = atoi (shade_str);
985		416
986	clamp_it (new_shade, -100, 200);	417	clamp_it (new_shade, -100, 200);
987	if (new_shade < 0)	418	if (new_shade < 0)
988	new_shade = 200 - (100 + new_shade);	419	new_shade = 200 - (100 + new_shade);
989		420
990	if (new_shade != shade)	421	if (new_shade != shade)
991	{	422	{
992	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
993	shade = new_shade;	423	shade = new_shade;
994	flags = (flags & (~tintFlags | tintSet)) | new_flags;
995	return true;	424	return true;
996	}	425	}
997		426
998	return false;	427	return false;
999	}	428	}
1000		429
1001	#if XRENDER	430	# if BG_IMAGE_FROM_ROOT
1002	static void	431	/*
1003	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1004	{
1005	double sigma = radius / 2.0;
1006	double scale = sqrt (2.0 * M_PI) * sigma;
1007	double sum = 0.0;
1008
1009	for (int i = 0; i < width; i++)
1010	{
1011	double x = i - width / 2;
1012	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1013	sum += kernel[i];
1014	}
1015
1016	params[0] = XDoubleToFixed (width);
1017	params[1] = XDoubleToFixed (1);
1018
1019	for (int i = 0; i < width; i++)
1020	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1021	}
1022	#endif
1023
1024	bool
1025	bgPixmap_t::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1026	{
1027	bool ret = false;
1028	#if XRENDER
1029	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1030	double *kernel = (double *)malloc (size * sizeof (double));
1031	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1032
1033	Display *dpy = target->dpy;
1034	XRenderPictureAttributes pa;
1035	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1036
1037	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1038	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1039
1040	if (kernel && params && src && dst)
1041	{
1042	if (h_blurRadius)
1043	{
1044	size = h_blurRadius * 2 + 1;
1045	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1046
1047	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1048	XRenderComposite (dpy,
1049	PictOpSrc,
1050	src,
1051	None,
1052	dst,
1053	0, 0,
1054	0, 0,
1055	0, 0,
1056	width, height);
1057	}
1058
1059	if (v_blurRadius)
1060	{
1061	size = v_blurRadius * 2 + 1;
1062	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1063	swap (params[0], params[1]);
1064
1065	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1066	XRenderComposite (dpy,
1067	PictOpSrc,
1068	src,
1069	None,
1070	dst,
1071	0, 0,
1072	0, 0,
1073	0, 0,
1074	width, height);
1075	}
1076
1077	ret = true;
1078	}
1079
1080	free (kernel);
1081	free (params);
1082	XRenderFreePicture (dpy, src);
1083	XRenderFreePicture (dpy, dst);
1084	#endif
1085	return ret;
1086	}
1087
1088	bool
1089	bgPixmap_t::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1090	{
1091	Display *dpy = target->dpy;
1092	bool ret = false;
1093
1094	if (flags & tintWholesome)
1095	{
1096	XGCValues gcv;
1097	GC gc;
1098
1099	/* In this case we can tint image server-side getting significant
1100	* performance improvements, as we eliminate XImage transfer
1101	*/
1102	gcv.foreground = Pixel (tint);
1103	gcv.function = GXand;
1104	gcv.fill_style = FillSolid;
1105	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1106	if (gc)
1107	{
1108	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1109	ret = true;
1110	XFreeGC (dpy, gc);
1111	}
1112	}
1113	else
1114	{
1115	# if XRENDER
1116	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1117
1118	if (flags & tintSet)
1119	tint.get (c);
1120
1121	if (shade <= 100)
1122	{
1123	c.r = (c.r * shade) / 100;
1124	c.g = (c.g * shade) / 100;
1125	c.b = (c.b * shade) / 100;
1126	}
1127	else
1128	{
1129	c.r = ((0xffff - c.r) * (200 - shade)) / 100;
1130	c.g = ((0xffff - c.g) * (200 - shade)) / 100;
1131	c.b = ((0xffff - c.b) * (200 - shade)) / 100;
1132	}
1133
1134	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1135	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1136	XRenderPictureAttributes pa;
1137
1138	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1139
1140	pa.repeat = True;
1141
1142	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1143	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1144	XFreePixmap (dpy, overlay_pmap);
1145
1146	pa.component_alpha = True;
1147	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1148	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1149	XFreePixmap (dpy, mask_pmap);
1150
1151	if (mask_pic && overlay_pic && back_pic)
1152	{
1153	XRenderColor mask_c;
1154
1155	mask_c.red = mask_c.green = mask_c.blue = shade > 100 ? 0xffff : 0;
1156	mask_c.alpha = 0xffff;
1157	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1158
1159	mask_c.alpha = 0;
1160	mask_c.red = 0xffff - c.r;
1161	mask_c.green = 0xffff - c.g;
1162	mask_c.blue = 0xffff - c.b;
1163	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1164	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1165	ret = true;
1166	}
1167
1168	XRenderFreePicture (dpy, mask_pic);
1169	XRenderFreePicture (dpy, overlay_pic);
1170	XRenderFreePicture (dpy, back_pic);
1171	# endif
1172	}
1173
1174	return ret;
1175	}
1176
1177	/* make_transparency_pixmap()
1178	* Builds a pixmap of the same size as the terminal window that contains	432	* Builds a pixmap of the same size as the terminal window that contains
1179	* the tiled portion of the root pixmap that is supposed to be covered by	433	* the tiled portion of the root pixmap that is supposed to be covered by
1180	* our window.	434	* our window.
1181	*/	435	*/
1182	unsigned long	436	bool
1183	bgPixmap_t::make_transparency_pixmap ()	437	rxvt_term::render_root_image ()
1184	{	438	{
1185	unsigned long result = 0;
1186
1187	if (target == NULL)
1188	return 0;
1189
1190	/* root dimensions may change from call to call - but Display structure should	439	/* root dimensions may change from call to call - but Display structure should
1191	* be always up-to-date, so let's use it :	440	* be always up-to-date, so let's use it :
1192	*/	441	*/
1193	int screen = target->display->screen;	442	int screen = display->screen;
1194	Display *dpy = target->dpy;
1195	int root_depth = DefaultDepth (dpy, screen);
1196	int root_width = DisplayWidth (dpy, screen);	443	int root_width = DisplayWidth (dpy, screen);
1197	int root_height = DisplayHeight (dpy, screen);	444	int root_height = DisplayHeight (dpy, screen);
1198	unsigned int root_pmap_width, root_pmap_height;
1199	int window_width = target->szHint.width;	445	int parent_width = szHint.width;
1200	int window_height = target->szHint.height;	446	int parent_height = szHint.height;
1201	int sx, sy;	447	int sx, sy;
1202	XGCValues gcv;
1203	GC gc;
1204		448
1205	target->get_window_origin (sx, sy);	449	sx = parent_x;
		450	sy = parent_y;
1206		451
1207	/* check if we are outside of the visible part of the virtual screen : */	452	/* check if we are outside of the visible part of the virtual screen : */
1208	if (sx + window_width <= 0 || sy + window_height <= 0	453	if (sx + parent_width <= 0 || sy + parent_height <= 0
1209	|| sx >= root_width || sy >= root_height)	454	|| sx >= root_width || sy >= root_height)
1210	return 0;	455	return 0;
1211		456
1212	// validate root pixmap and get its size	457	while (sx < 0) sx += root_img->w;
1213	if (root_pixmap != None)	458	while (sy < 0) sy += root_img->h;
1214	{
1215	Window wdummy;
1216	int idummy;
1217	unsigned int udummy;
1218		459
1219	target->allowedxerror = -1;	460	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1220		461
1221	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	462	if (root_effects.need_blur ())
1222	root_pixmap = None;	463	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1223		464
1224	target->allowedxerror = 0;	465	if (root_effects.need_tint ())
1225	}	466	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1226		467
1227	Pixmap recoded_root_pmap = root_pixmap;
1228
1229	if (root_pixmap != None && root_depth != target->depth)
1230	{
1231	#if XRENDER
1232	if (flags & HAS_RENDER)
1233	{
1234	XRenderPictureAttributes pa;
1235
1236	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1237	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1238
1239	recoded_root_pmap = XCreatePixmap (dpy, target->vt, root_pmap_width, root_pmap_height, target->depth);
1240	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);	468	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1241	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	469	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1242		470
1243	if (src && dst)	471	delete bg_img;
1244	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	472	bg_img = img;
1245	else
1246	{
1247	XFreePixmap (dpy, recoded_root_pmap);
1248	root_pixmap = None;
1249	}
1250		473
1251	XRenderFreePicture (dpy, src);	474	return true;
1252	XRenderFreePicture (dpy, dst);	475	}
1253	}	476	# endif /* BG_IMAGE_FROM_ROOT */
1254	else	477
		478	void
		479	rxvt_term::bg_render ()
		480	{
		481	if (bg_flags & BG_INHIBIT_RENDER)
		482	return;
		483
		484	delete bg_img;
		485	bg_img = 0;
		486	bg_flags = 0;
		487
		488	if (!mapped)
		489	return;
		490
		491	# if BG_IMAGE_FROM_ROOT
		492	if (root_img)
		493	if (render_root_image ())
		494	bg_flags |= BG_IS_TRANSPARENT;
		495	# endif
		496
		497	# if BG_IMAGE_FROM_FILE
		498	if (fimage.img)
		499	render_image (fimage);
		500	# endif
		501
		502	scr_recolour (false);
		503	bg_flags |= BG_NEEDS_REFRESH;
		504
		505	bg_valid_since = ev::now ();
		506	}
		507
		508	void
		509	rxvt_term::bg_init ()
		510	{
		511	#if BG_IMAGE_FROM_ROOT
		512	if (option (Opt_transparent))
		513	{
		514	if (rs [Rs_blurradius])
		515	root_effects.set_blur (rs [Rs_blurradius]);
		516
		517	if (ISSET_PIXCOLOR (Color_tint))
		518	root_effects.set_tint (pix_colors_focused [Color_tint]);
		519
		520	if (rs [Rs_shade])
		521	root_effects.set_shade (rs [Rs_shade]);
		522
		523	rxvt_img::new_from_root (this)->replace (root_img);
		524	XSelectInput (dpy, display->root, PropertyChangeMask);
		525	rootwin_ev.start (display, display->root);
		526	}
1255	#endif	527	#endif
1256	root_pixmap = None;	528
		529	#if BG_IMAGE_FROM_FILE
		530	if (rs[Rs_backgroundPixmap])
1257	}	531	{
1258		532	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1259	if (root_pixmap == None)	533	if (!bg_window_position_sensitive ())
1260	return 0;	534	update_background ();
1261
1262	Pixmap tiled_root_pmap = XCreatePixmap (dpy, target->vt, window_width, window_height, target->depth);
1263
1264	if (tiled_root_pmap == None) /* something really bad happened - abort */
1265	return 0;
1266
1267	/* straightforward pixmap copy */
1268	gcv.tile = recoded_root_pmap;
1269	gcv.fill_style = FillTiled;
1270
1271	while (sx < 0) sx += (int)root_width;
1272	while (sy < 0) sy += (int)root_height;
1273
1274	gcv.ts_x_origin = -sx;
1275	gcv.ts_y_origin = -sy;
1276	gc = XCreateGC (dpy, target->vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1277
1278	if (gc)
1279	{	535	}
1280	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);	536	#endif
1281	result |= transpPmapTiled;	537	}
1282	XFreeGC (dpy, gc);
1283		538
1284	if (!need_client_side_rendering ())	539	void
1285	{	540	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1286	if ((flags & blurNeeded)	541	{
1287	&& (flags & HAS_RENDER_CONV))	542	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1288	{
1289	if (blur_pixmap (tiled_root_pmap, target->visual, window_width, window_height))
1290	result |= transpPmapBlurred;
1291	}
1292	if ((flags & tintNeeded)
1293	&& (flags & (tintWholesome | HAS_RENDER)))
1294	{
1295	if (tint_pixmap (tiled_root_pmap, target->visual, window_width, window_height))
1296	result |= transpPmapTinted;
1297	}
1298	} /* server side rendering completed */
1299		543
1300	if (pixmap)	544	if (tint_set)
1301	XFreePixmap (dpy, pixmap);	545	tint.get (c);
1302		546
1303	pixmap = tiled_root_pmap;	547	if (shade > 100)
1304	pmap_width = window_width;	548	{
1305	pmap_height = window_height;	549	c.r = c.r * (200 - shade) / 100;
1306	pmap_depth = target->depth;	550	c.g = c.g * (200 - shade) / 100;
		551	c.b = c.b * (200 - shade) / 100;
1307	}	552	}
1308	else	553	else
1309	XFreePixmap (dpy, tiled_root_pmap);
1310
1311	if (recoded_root_pmap != root_pixmap)
1312	XFreePixmap (dpy, recoded_root_pmap);
1313
1314	return result;
1315	}
1316
1317	void
1318	bgPixmap_t::set_root_pixmap ()
1319	{
1320	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1321	if (new_root_pixmap == None)
1322	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1323
1324	root_pixmap = new_root_pixmap;
1325	}
1326	# endif /* ENABLE_TRANSPARENCY */
1327
1328	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1329	static void ShadeXImage(Visual *visual, XImage *srcImage, int shade, const rgba &c);
1330	# endif
1331
1332	bool
1333	bgPixmap_t::render ()
1334	{
1335	unsigned long background_flags = 0;
1336
1337	if (target == NULL)
1338	return false;
1339
1340	invalidate ();
1341	# ifdef ENABLE_TRANSPARENCY
1342	if (flags & isTransparent)
1343	{
1344	/* we need to re-generate transparency pixmap in that case ! */
1345	background_flags = make_transparency_pixmap ();
1346	if (background_flags == 0)
1347	return false;
1348	else if ((background_flags & transpTransformations) == (flags & transpTransformations))
1349	flags = flags & ~isInvalid;
1350	}	554	{
1351	# endif	555	c.r = c.r * shade / 100;
1352		556	c.g = c.g * shade / 100;
1353	# ifdef BG_IMAGE_FROM_FILE	557	c.b = c.b * shade / 100;
1354	if (have_image
1355	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1356	{	558	}
1357	if (render_image (background_flags))	559
1358	flags = flags & ~isInvalid;	560	img->contrast (c.r, c.g, c.b, c.a);
		561
		562	if (shade > 100)
1359	}	563	{
1360	# endif	564	c.a = 0xffff;
1361		565	c.r =
1362	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	566	c.g =
1363	XImage *result = NULL;	567	c.b = 0xffff * (shade - 100) / 100;
1364		568	img->brightness (c.r, c.g, c.b, c.a);
1365	if (background_flags && (flags & isInvalid))
1366	{	569	}
1367	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1368	}
1369
1370	if (result)
1371	{
1372	/* our own client-side tinting */
1373	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
1374	{
1375	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1376	if (flags & tintSet)
1377	tint.get (c);
1378	ShadeXImage (DefaultVisual (target->dpy, target->display->screen), result, shade, c);
1379	}
1380
1381	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1382
1383	if (gc)
1384	{
1385	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1386
1387	XFreeGC (target->dpy, gc);
1388	flags = flags & ~isInvalid;
1389	}
1390
1391	XDestroyImage (result);
1392	}
1393	# endif
1394
1395	if (flags & isInvalid)
1396	{
1397	if (pixmap != None)
1398	{
1399	XFreePixmap (target->dpy, pixmap);
1400	pixmap = None;
1401	}
1402	}
1403
1404	apply ();
1405
1406	valid_since = ev::now ();
1407
1408	return true;
1409	}
1410
1411	void
1412	bgPixmap_t::set_target (rxvt_term *new_target)
1413	{
1414	target = new_target;
1415
1416	flags &= ~(HAS_RENDER | HAS_RENDER_CONV);
1417	#if XRENDER
1418	int major, minor;
1419	if (XRenderQueryVersion (target->dpy, &major, &minor))
1420	flags |= HAS_RENDER;
1421	XFilters *filters = XRenderQueryFilters (target->dpy, target->vt);
1422	if (filters)
1423	{
1424	for (int i = 0; i < filters->nfilter; i++)
1425	if (!strcmp (filters->filter[i], FilterConvolution))
1426	flags |= HAS_RENDER_CONV;
1427
1428	XFree (filters);
1429	}
1430	#endif
1431	}
1432
1433	void
1434	bgPixmap_t::apply ()
1435	{
1436	if (target == NULL)
1437	return;
1438
1439	if (pixmap != None)
1440	{
1441	/* set target's background to pixmap */
1442	# ifdef ENABLE_TRANSPARENCY
1443	if (flags & isTransparent)
1444	{
1445	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1446	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1447
1448	if (target->scrollBar.win)
1449	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1450	}
1451	else
1452	# endif
1453	{
1454	/* force old pixmap dereference in case it was transparent before :*/
1455	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1456	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1457	/* do we also need to set scrollbar's background here ? */
1458
1459	if (target->scrollBar.win)
1460	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1461	}
1462	}
1463	else
1464	{
1465	/* set target background to a pixel */
1466	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1467	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);
1468	/* do we also need to set scrollbar's background here ? */
1469	if (target->scrollBar.win)
1470	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1471	}
1472
1473	/* don't want Expose on the parent or vt. It is better to use
1474	scr_touch or we get a great deal of flicker otherwise: */
1475	XClearWindow (target->dpy, target->parent[0]);
1476
1477	if (target->scrollBar.state && target->scrollBar.win)
1478	{
1479	target->scrollBar.state = STATE_IDLE;
1480	target->scrollBar.show (0);
1481	}
1482
1483	target->want_refresh = 1;
1484	flags |= hasChanged;
1485	}	570	}
1486		571
1487	#endif /* HAVE_BG_PIXMAP */	572	#endif /* HAVE_BG_PIXMAP */
1488
1489	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1490	/* taken from aterm-0.4.2 */
1491
1492	static void
1493	ShadeXImage(Visual *visual, XImage *srcImage, int shade, const rgba &c)
1494	{
1495	int sh_r, sh_g, sh_b;
1496	uint32_t mask_r, mask_g, mask_b;
1497	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1498	rgba low;
1499	rgba high;
1500	int i;
1501	int host_byte_order = byteorder.big_endian () ? MSBFirst : LSBFirst;
1502
1503	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return;
1504
1505	/* for convenience */
1506	mask_r = visual->red_mask;
1507	mask_g = visual->green_mask;
1508	mask_b = visual->blue_mask;
1509
1510	/* boring lookup table pre-initialization */
1511	switch (srcImage->depth)
1512	{
1513	case 15:
1514	if ((mask_r != 0x7c00) ||
1515	(mask_g != 0x03e0) ||
1516	(mask_b != 0x001f))
1517	return;
1518	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1519	lookup_r = lookup;
1520	lookup_g = lookup+32;
1521	lookup_b = lookup+32+32;
1522	sh_r = 10;
1523	sh_g = 5;
1524	sh_b = 0;
1525	break;
1526	case 16:
1527	if ((mask_r != 0xf800) ||
1528	(mask_g != 0x07e0) ||
1529	(mask_b != 0x001f))
1530	return;
1531	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1532	lookup_r = lookup;
1533	lookup_g = lookup+32;
1534	lookup_b = lookup+32+64;
1535	sh_r = 11;
1536	sh_g = 5;
1537	sh_b = 0;
1538	break;
1539	case 24:
1540	if ((mask_r != 0xff0000) ||
1541	(mask_g != 0x00ff00) ||
1542	(mask_b != 0x0000ff))
1543	return;
1544	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1545	lookup_r = lookup;
1546	lookup_g = lookup+256;
1547	lookup_b = lookup+256+256;
1548	sh_r = 16;
1549	sh_g = 8;
1550	sh_b = 0;
1551	break;
1552	case 32:
1553	if ((mask_r != 0xff0000) ||
1554	(mask_g != 0x00ff00) ||
1555	(mask_b != 0x0000ff))
1556	return;
1557	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1558	lookup_r = lookup;
1559	lookup_g = lookup+256;
1560	lookup_b = lookup+256+256;
1561	sh_r = 16;
1562	sh_g = 8;
1563	sh_b = 0;
1564	break;
1565	default:
1566	return; /* we do not support this color depth */
1567	}
1568
1569	/* prepare limits for color transformation (each channel is handled separately) */
1570	if (shade > 100)
1571	{
1572	shade = 200 - shade;
1573
1574	high.r = (65535 - c.r) * shade / 100;
1575	high.g = (65535 - c.g) * shade / 100;
1576	high.b = (65535 - c.b) * shade / 100;
1577
1578	low.r = 65535 - high.r;
1579	low.g = 65535 - high.g;
1580	low.b = 65535 - high.b;
1581	}
1582	else
1583	{
1584	high.r = c.r * shade / 100;
1585	high.g = c.g * shade / 100;
1586	high.b = c.b * shade / 100;
1587
1588	low.r = low.g = low.b = 0;
1589	}
1590
1591	/* fill our lookup tables */
1592	for (i = 0; i <= mask_r>>sh_r; i++)
1593	{
1594	uint32_t tmp;
1595	tmp = i * high.r;
1596	tmp += (mask_r>>sh_r) * low.r;
1597	lookup_r[i] = (tmp/65535)<<sh_r;
1598	}
1599	for (i = 0; i <= mask_g>>sh_g; i++)
1600	{
1601	uint32_t tmp;
1602	tmp = i * high.g;
1603	tmp += (mask_g>>sh_g) * low.g;
1604	lookup_g[i] = (tmp/65535)<<sh_g;
1605	}
1606	for (i = 0; i <= mask_b>>sh_b; i++)
1607	{
1608	uint32_t tmp;
1609	tmp = i * high.b;
1610	tmp += (mask_b>>sh_b) * low.b;
1611	lookup_b[i] = (tmp/65535)<<sh_b;
1612	}
1613
1614	/* apply table to input image (replacing colors by newly calculated ones) */
1615	if (srcImage->bits_per_pixel == 32
1616	&& (srcImage->depth == 24 || srcImage->depth == 32)
1617	&& srcImage->byte_order == host_byte_order)
1618	{
1619	uint32_t *p1, *pf, *p, *pl;
1620	p1 = (uint32_t *) srcImage->data;
1621	pf = (uint32_t *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1622
1623	while (p1 < pf)
1624	{
1625	p = p1;
1626	pl = p1 + srcImage->width;
1627	for (; p < pl; p++)
1628	{
1629	*p = lookup_r[(*p & 0xff0000) >> 16] |
1630	lookup_g[(*p & 0x00ff00) >> 8] |
1631	lookup_b[(*p & 0x0000ff)] |
1632	(*p & 0xff000000);
1633	}
1634	p1 = (uint32_t *) ((char *) p1 + srcImage->bytes_per_line);
1635	}
1636	}
1637	else
1638	{
1639	for (int y = 0; y < srcImage->height; y++)
1640	for (int x = 0; x < srcImage->width; x++)
1641	{
1642	unsigned long pixel = XGetPixel (srcImage, x, y);
1643	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1644	lookup_g[(pixel & mask_g) >> sh_g] |
1645	lookup_b[(pixel & mask_b) >> sh_b];
1646	XPutPixel (srcImage, x, y, pixel);
1647	}
1648	}
1649
1650	free (lookup);
1651	}
1652	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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