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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.135 by sf-exg, Tue Jan 11 11:12:45 2011 UTC vs.
Revision 1.254 by sf-exg, Sun Dec 30 20:28:31 2012 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <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 BG_IMAGE_FROM_ROOT
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
		41	}
		42
		43	bool
		44	rxvt_term::bg_window_size_sensitive ()
		45	{
96	#ifdef BG_IMAGE_FROM_FILE	46	# if BG_IMAGE_FROM_ROOT
97	have_image = false;	47	if (root_img)
98	h_scale = v_scale = 0;	48	return true;
99	h_align = v_align = 0;
100	#endif	49	# 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		50
111	void	51	# if BG_IMAGE_FROM_FILE
112	bgPixmap_t::destroy ()	52	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	{	53	{
135	target_x = x;	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
136	target_y = y;	55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
137	return true;	57	return true;
138	}	58	}
		59	# endif
		60
139	return false;	61	return false;
140	}	62	}
141		63
142	bool	64	bool
143	bgPixmap_t::window_size_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
144	{	66	{
145	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
146	if (flags & isTransparent)	68	if (root_img)
147	return true;	69	return true;
148	# endif	70	# endif
149		71
150	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
151	if (have_image)	73	if (fimage.img)
152	{	74	{
153	if (flags & sizeSensitive)	75	if (fimage.flags & IM_ROOT_ALIGN)
154	return true;	76	return true;
155	}	77	}
156	# endif	78	# endif
157		79
158	return false;	80	return false;
159	}	81	}
160		82
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	83	# 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	# ifdef BG_IMAGE_FROM_FILE
181	static inline bool
182	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
183	{
184	if (geom_flags & flag)
185	{
186	if (new_value > 1000)
187	new_value = 1000;
188	if (new_value != scale)
189	{
190	scale = new_value;
191	return true;
192	}
193	}
194	return false;
195	}
196
197	static inline bool
198	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
199	{
200	if (geom_flags & flag)
201	{
202	if (new_value < -100)
203	new_value = -100;
204	else if (new_value > 200)
205	new_value = 200;
206	if (new_value != align)
207	{
208	align = new_value;
209	return true;
210	}
211	}
212	return false;
213	}
214
215	static inline int	84	static inline int
216	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
217	{	86	{
218	int diff = window_size - image_size;
219	int smaller = min (image_size, window_size);
220
221	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
222	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
223	else if (align > 100 && align <= 200)	89	else if (align > 100)
224	return ((align - 100) * smaller / 100) + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
225	else if (align >= -100 && align < 0)	91	else
226	return ((align + 100) * smaller / 100) - image_size;	92	return lerp (-image_size, 0, align + 100);
227	return 0;
228	}	93	}
229		94
230	static inline int	95	static void
231	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)
232	{	97	{
233	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
234	dst_pos = pos;
235	dst_size = size;
236	if (pos < 0)
237	{
238	src_pos = -pos;
239	dst_pos = 0;
240	dst_size += pos;
241	}	99	{
242		100	flags = IM_TILE;
243	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
244	dst_size = target_size - dst_pos;	102	x = y = 0;
245	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	}
246	}	128	}
247		129
248	bool	130	bool
249	bgPixmap_t::set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
250	{	132	{
251	bool changed = false;	133	bool changed = false;
252	int geom_flags = 0;	134	int geom_flags = 0;
253	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
254	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
255	unsigned int n;	138	unsigned int h = v_scale;
256	unsigned long new_flags = (flags & (~geometryFlags));	139	uint8_t new_flags = 0;
257	const char *ops;
258		140
259	if (geom == NULL)	141	if (geom == NULL)
260	return false;	142	return false;
261		143
262	char str[256];	144	if (geom[0])
263
264	ops = strchr (geom, ':');
265	if (ops == NULL)
266	n = strlen (geom);
267	else
268	n = ops - geom;
269
270	if (n >= sizeof (str))
271	return false;
272
273	memcpy (str, geom, n);
274	str[n] = '\0';
275	rxvt_strtrim (str);
276
277	if (str[0])
278	{	145	{
279	/* we have geometry string - let's handle it prior to applying ops */	146	char **arr = rxvt_strsplit (':', geom);
		147
		148	for (int i = 0; arr[i]; i++)
		149	{
		150	if (!strncasecmp (arr[i], "style=", 6))
		151	{
		152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		153	geom_flags = WidthValue|HeightValue|XValue|YValue;
		154	}
		155	else if (!strcasecmp (arr[i], "op=tile"))
		156	new_flags |= IM_TILE;
		157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		158	new_flags |= IM_KEEP_ASPECT;
		159	else if (!strcasecmp (arr[i], "op=root-align"))
		160	new_flags |= IM_ROOT_ALIGN;
		161
		162	// deprecated
		163	else if (!strcasecmp (arr[i], "tile"))
		164	{
		165	new_flags |= IM_TILE;
		166	w = h = noScale;
		167	geom_flags |= WidthValue|HeightValue;
		168	}
		169	else if (!strcasecmp (arr[i], "propscale"))
		170	{
		171	new_flags |= IM_KEEP_ASPECT;
		172	w = h = windowScale;
		173	geom_flags |= WidthValue|HeightValue;
		174	}
		175	else if (!strcasecmp (arr[i], "hscale"))
		176	{
		177	new_flags |= IM_TILE;
		178	w = windowScale;
		179	h = noScale;
		180	geom_flags |= WidthValue|HeightValue;
		181	}
		182	else if (!strcasecmp (arr[i], "vscale"))
		183	{
		184	new_flags |= IM_TILE;
		185	h = windowScale;
		186	w = noScale;
		187	geom_flags |= WidthValue|HeightValue;
		188	}
		189	else if (!strcasecmp (arr[i], "scale"))
		190	{
		191	w = h = windowScale;
		192	geom_flags |= WidthValue|HeightValue;
		193	}
		194	else if (!strcasecmp (arr[i], "auto"))
		195	{
		196	w = h = windowScale;
		197	x = y = centerAlign;
		198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		199	}
		200	else if (!strcasecmp (arr[i], "root"))
		201	{
		202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		203	w = h = noScale;
		204	geom_flags |= WidthValue|HeightValue;
		205	}
		206
		207	else
280	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
281	} /* done parsing geometry string */	209	} /* done parsing ops */
		210
		211	rxvt_free_strsplit (arr);
		212	}
		213
		214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
282		215
283	if (!update)	216	if (!update)
284	{	217	{
285	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
286	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
291	w = h = defaultScale;	224	w = h = defaultScale;
292	else if (!(geom_flags & HeightValue))	225	else if (!(geom_flags & HeightValue))
293	h = w;	226	h = w;
294	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
295	w = h;	228	w = h;
296
297	geom_flags |= WidthValue|HeightValue|XValue|YValue;
298	}
299
300	if (ops)
301	{	229	}
302	char **arr = rxvt_strsplit (':', ops + 1);
303		230
304	for (int i = 0; arr[i]; i++)	231	clamp_it (x, -100, 200);
305	{	232	clamp_it (y, -100, 200);
306	if (!strcasecmp (arr[i], "tile"))
307	{
308	w = h = noScale;
309	geom_flags |= WidthValue|HeightValue;
310	}
311	else if (!strcasecmp (arr[i], "propscale"))
312	{
313	new_flags |= propScale;
314	}
315	else if (!strcasecmp (arr[i], "hscale"))
316	{
317	if (w == 0) w = windowScale;
318		233
319	h = noScale;	234	if (flags != new_flags
320	geom_flags |= WidthValue|HeightValue;	235	|| h_scale != w
321	}	236	|| v_scale != h
322	else if (!strcasecmp (arr[i], "vscale"))	237	|| h_align != x
323	{	238	|| v_align != y)
324	if (h == 0) h = windowScale;
325
326	w = noScale;
327	geom_flags |= WidthValue|HeightValue;
328	}
329	else if (!strcasecmp (arr[i], "scale"))
330	{
331	if (h == 0) h = windowScale;
332	if (w == 0) w = windowScale;
333
334	geom_flags |= WidthValue|HeightValue;
335	}
336	else if (!strcasecmp (arr[i], "auto"))
337	{
338	w = h = windowScale;
339	x = y = centerAlign;
340	geom_flags |= WidthValue|HeightValue|XValue|YValue;
341	}
342	else if (!strcasecmp (arr[i], "root"))
343	{
344	new_flags |= rootAlign;
345	w = h = noScale;
346	geom_flags |= WidthValue|HeightValue;
347	}
348	} /* done parsing ops */
349
350	rxvt_free_strsplit (arr);
351	}
352
353	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
354	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
355	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
356	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
357
358	if (new_flags != flags)
359	{	239	{
360	flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
361	changed = true;	245	changed = true;
362	}	246	}
363		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
364	return changed;	253	return changed;
365	}	254	}
366		255
367	void	256	void
368	bgPixmap_t::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	257	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
369	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
370	int target_width = target->szHint.width;	261	int parent_width = szHint.width;
371	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);
372		265
373	if (flags & propScale)	266	w = h_scale * parent_width / 100;
		267	h = v_scale * parent_height / 100;
		268
		269	if (image.flags & IM_KEEP_ASPECT)
374	{	270	{
375	float scale = (float)target_width / image_width;	271	float scale = (float)w / image_width;
376	min_it (scale, (float)target_height / image_height);	272	min_it (scale, (float)h / image_height);
377	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
378	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
379	}	275	}
380	else
381	{
382	w = h_scale * target_width / 100;
383	h = v_scale * target_height / 100;
384	}
385		276
386	if (!w) w = image_width;	277	if (!w) w = image_width;
387	if (!h) h = image_height;	278	if (!h) h = image_height;
388		279
389	if (flags & rootAlign)	280	if (image.flags & IM_ROOT_ALIGN)
390	{	281	{
391	x = -target_x;	282	x = -parent_x;
392	y = -target_y;	283	y = -parent_y;
393	}	284	}
394	else	285	else
395	{	286	{
396	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
397	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
398	}
399
400	flags &= ~sizeSensitive;
401	if ((flags & propScale) || h_scale || v_scale
402	|| (!(flags & rootAlign) && (h_align || v_align))
403	|| w > target_width || h > target_height)
404	flags |= sizeSensitive;
405	}
406
407	# ifdef HAVE_AFTERIMAGE
408	bool
409	bgPixmap_t::render_image (unsigned long background_flags)
410	{
411	if (target == NULL)
412	return false;
413
414	target->init_asv ();
415
416	ASImage *background = NULL;
417	ARGB32 background_tint = TINT_LEAVE_SAME;
418
419	# ifdef ENABLE_TRANSPARENCY
420	if (background_flags)
421	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
422
423	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
424	{	289	}
425	ShadingInfo as_shade;	290	}
426	as_shade.shading = shade;
427		291
428	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	292	bool
429	if (flags & tintSet)	293	rxvt_term::render_image (rxvt_image &image)
430	tint.get (c);	294	{
431	as_shade.tintColor.red = c.r;
432	as_shade.tintColor.green = c.g;
433	as_shade.tintColor.blue = c.b;
434
435	background_tint = shading2tint32 (&as_shade);
436	}
437
438	if (!(background_flags & transpPmapBlurred) && (flags & blurNeeded) && background != NULL)
439	{
440	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
441	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
442	100, ASIMAGE_QUALITY_DEFAULT);
443	if (tmp)
444	{
445	destroy_asimage (&background);
446	background = tmp;
447	}
448	}
449	# endif
450
451	ASImage *result = 0;
452
453	int target_width = target->szHint.width;	295	int parent_width = szHint.width;
454	int target_height = target->szHint.height;	296	int parent_height = szHint.height;
455	int new_pmap_width = target_width;
456	int new_pmap_height = target_height;
457		297
458	int x = 0;	298	int x = 0;
459	int y = 0;	299	int y = 0;
460	int w = 0;	300	int w = 0;
461	int h = 0;	301	int h = 0;
462		302
463	if (original_asim)	303	get_image_geometry (image, w, h, x, y);
464	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
465		304
466	if (!original_asim	305	if (!(image.flags & IM_ROOT_ALIGN)
467	|| (!(flags & rootAlign)
468	&& (x >= target_width	306	&& (x >= parent_width
469	|| y >= target_height	307	|| y >= parent_height
470	|| (x + w <= 0)	308	|| x + w <= 0
471	|| (y + h <= 0))))	309	|| y + h <= 0))
472	{	310	return false;
473	if (background)
474	{
475	new_pmap_width = background->width;
476	new_pmap_height = background->height;
477	result = background;
478		311
479	if (background_tint != TINT_LEAVE_SAME)	312	rxvt_img *img = image.img->scale (w, h);
480	{	313
481	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	314	if (image.flags & IM_TILE)
482	target_width, target_height, background_tint,	315	img->repeat_mode (RepeatNormal);
483	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
484	if (tmp)
485	result = tmp;
486	}
487	}
488	else
489	new_pmap_width = new_pmap_height = 0;
490	}
491	else	316	else
492	{	317	img->repeat_mode (RepeatNone);
493	result = original_asim;	318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
494		319
495	if ((w != original_asim->width)	320	if (bg_img)
496	|| (h != original_asim->height))	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
497	{
498	result = scale_asimage (target->asv, original_asim,
499	w, h,
500	background ? ASA_ASImage : ASA_XImage,
501	100, ASIMAGE_QUALITY_DEFAULT);
502	}
503		322
504	if (background == NULL)	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
505	{	324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
506	if (h_scale == 0 || v_scale == 0)
507	{
508	/* if tiling - pixmap has to be sized exactly as the image,
509	but there is no need to make it bigger than the window! */
510	new_pmap_width = min (result->width, target_width);
511	new_pmap_height = min (result->height, target_height);
512		325
513	/* we also need to tile our image in both directions */	326	delete bg_img;
514	ASImage *tmp = tile_asimage (target->asv, result,	327	bg_img = img;
515	(int)result->width - x,
516	(int)result->height - y,
517	new_pmap_width,
518	new_pmap_height,
519	TINT_LEAVE_SAME, ASA_XImage,
520	100, ASIMAGE_QUALITY_DEFAULT);
521	if (tmp)
522	{
523	if (result != original_asim)
524	destroy_asimage (&result);
525		328
526	result = tmp;
527	}
528	}
529	}
530	else
531	{
532	/* if blending background and image - pixmap has to be sized same as target window */
533	ASImageLayer *layers = create_image_layers (2);
534
535	layers[0].im = background;
536	layers[0].clip_width = target_width;
537	layers[0].clip_height = target_height;
538	layers[0].tint = background_tint;
539	layers[1].im = result;
540
541	if (h_scale == 0 || v_scale == 0)
542	{
543	/* tile horizontally */
544	while (x > 0) x -= (int)result->width;
545	layers[1].dst_x = x;
546	layers[1].clip_width = result->width+target_width;
547	}
548	else
549	{
550	/* clip horizontally */
551	layers[1].dst_x = x;
552	layers[1].clip_width = result->width;
553	}
554
555	if (h_scale == 0 || v_scale == 0)
556	{
557	while (y > 0) y -= (int)result->height;
558	layers[1].dst_y = y;
559	layers[1].clip_height = result->height + target_height;
560	}
561	else
562	{
563	layers[1].dst_y = y;
564	layers[1].clip_height = result->height;
565	}
566
567	if (target->rs[Rs_blendtype])
568	{
569	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
570	if (layers[1].merge_scanlines == NULL)
571	layers[1].merge_scanlines = alphablend_scanlines;
572	}
573
574	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
575	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
576
577	if (tmp)
578	{
579	if (result != original_asim)
580	destroy_asimage (&result);
581
582	result = tmp;
583	}
584
585	free (layers);
586	}
587	}
588
589	bool ret = false;
590
591	if (result)
592	{
593	XGCValues gcv;
594	GC gc;
595
596	/* create Pixmap */
597	if (pixmap == None
598	|| pmap_width != new_pmap_width
599	|| pmap_height != new_pmap_height)
600	{
601	if (pixmap)
602	XFreePixmap (target->dpy, pixmap);
603	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
604	pmap_width = new_pmap_width;
605	pmap_height = new_pmap_height;
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;
643	}
644	# endif /* HAVE_AFTERIMAGE */
645
646	# ifdef HAVE_PIXBUF
647	bool
648	bgPixmap_t::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
649	int src_x, int src_y, int dst_x, int dst_y,
650	unsigned int width, unsigned int height)
651	{
652	XImage *ximage;
653	char *data, *line;
654	int bytes_per_pixel;
655	int width_r, width_g, width_b;
656	int sh_r, sh_g, sh_b;
657	int rowstride;
658	int channels;
659	unsigned char *row;
660	Visual *visual = target->visual;
661	int depth = target->depth;
662
663	if (visual->c_class != TrueColor)
664	return false;
665
666	if (depth == 24 || depth == 32)
667	bytes_per_pixel = 4;
668	else if (depth == 15 || depth == 16)
669	bytes_per_pixel = 2;
670	else
671	return false;
672
673	width_r = rxvt_popcount (visual->red_mask);
674	width_g = rxvt_popcount (visual->green_mask);
675	width_b = rxvt_popcount (visual->blue_mask);
676
677	if (width_r > 8 || width_g > 8 || width_b > 8)
678	return false;
679
680	sh_r = rxvt_ctz (visual->red_mask);
681	sh_g = rxvt_ctz (visual->green_mask);
682	sh_b = rxvt_ctz (visual->blue_mask);
683
684	if (width > INT_MAX / height / bytes_per_pixel)
685	return false;
686
687	data = (char *)malloc (width * height * bytes_per_pixel);
688	if (!data)
689	return false;
690
691	ximage = XCreateImage (target->dpy, visual, depth, ZPixmap, 0, data,
692	width, height, bytes_per_pixel * 8, 0);
693	if (!ximage)
694	{
695	free (data);
696	return false;
697	}
698
699	ximage->byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
700
701	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
702	channels = gdk_pixbuf_get_n_channels (pixbuf);
703	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
704	line = data;
705
706	for (int y = 0; y < height; y++)
707	{
708	for (int x = 0; x < width; x++)
709	{
710	unsigned char *pixel = row + x * channels;
711	uint32_t value;
712
713	value = ((pixel[0] >> (8 - width_r)) << sh_r)
714	| ((pixel[1] >> (8 - width_g)) << sh_g)
715	| ((pixel[2] >> (8 - width_b)) << sh_b);
716
717	if (bytes_per_pixel == 4)
718	((uint32_t *)line)[x] = value;
719	else
720	((uint16_t *)line)[x] = value;
721	}
722
723	row += rowstride;
724	line += ximage->bytes_per_line;
725	}
726
727	XPutImage (target->dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
728	XDestroyImage (ximage);
729	return true;	329	return true;
730	}	330	}
731		331
732	bool	332	rxvt_image::rxvt_image ()
733	bgPixmap_t::render_image (unsigned long background_flags)
734	{	333	{
735	if (target == NULL)	334	alpha = 0xffff;
736	return false;	335	flags = 0;
		336	h_scale =
		337	v_scale = defaultScale;
		338	h_align =
		339	v_align = defaultAlign;
737		340
738	if (!pixbuf)	341	img = 0;
739	return false;
740
741	if (background_flags
742	&& !(flags & HAS_RENDER))
743	return false;
744
745	GdkPixbuf *result;
746
747	int image_width = gdk_pixbuf_get_width (pixbuf);
748	int image_height = gdk_pixbuf_get_height (pixbuf);
749
750	int target_width = target->szHint.width;
751	int target_height = target->szHint.height;
752	int new_pmap_width = target_width;
753	int new_pmap_height = target_height;
754
755	int x = 0;
756	int y = 0;
757	int w = 0;
758	int h = 0;
759
760	get_image_geometry (image_width, image_height, w, h, x, y);
761
762	if (!(flags & rootAlign)
763	&& (x >= target_width
764	|| y >= target_height
765	|| (x + w <= 0)
766	|| (y + h <= 0)))
767	return false;
768
769	result = pixbuf;
770
771	if ((w != image_width)
772	|| (h != image_height))
773	{
774	result = gdk_pixbuf_scale_simple (pixbuf,
775	w, h,
776	GDK_INTERP_BILINEAR);
777	}
778
779	bool ret = false;
780
781	if (result)
782	{
783	XGCValues gcv;
784	GC gc;
785	Pixmap root_pmap;
786
787	image_width = gdk_pixbuf_get_width (result);
788	image_height = gdk_pixbuf_get_height (result);
789
790	if (background_flags)
791	{
792	root_pmap = pixmap;
793	pixmap = None;
794	}
795	else
796	{
797	if (h_scale == 0 || v_scale == 0)
798	{
799	new_pmap_width = min (image_width, target_width);
800	new_pmap_height = min (image_height, target_height);
801	}
802	}
803
804	if (pixmap == None
805	|| pmap_width != new_pmap_width
806	|| pmap_height != new_pmap_height)
807	{
808	if (pixmap)
809	XFreePixmap (target->dpy, pixmap);
810	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
811	pmap_width = new_pmap_width;
812	pmap_height = new_pmap_height;
813	}
814
815	gcv.foreground = target->pix_colors[Color_bg];
816	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
817
818	if (h_scale == 0 || v_scale == 0)
819	{
820	Pixmap tile = XCreatePixmap (target->dpy, target->vt, image_width, image_height, target->depth);
821	pixbuf_to_pixmap (result, tile, gc,
822	0, 0,
823	0, 0,
824	image_width, image_height);
825
826	gcv.tile = tile;
827	gcv.fill_style = FillTiled;
828	gcv.ts_x_origin = x;
829	gcv.ts_y_origin = y;
830	XChangeGC (target->dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
831
832	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
833	XFreePixmap (target->dpy, tile);
834	}
835	else
836	{
837	int src_x, src_y, dst_x, dst_y;
838	int dst_width, dst_height;
839
840	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
841	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
842
843	if (dst_x > 0 || dst_y > 0
844	|| dst_x + dst_width < new_pmap_width
845	|| dst_y + dst_height < new_pmap_height)
846	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
847
848	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
849	pixbuf_to_pixmap (result, pixmap, gc,
850	src_x, src_y,
851	dst_x, dst_y,
852	dst_width, dst_height);
853	}
854
855	#if XRENDER
856	if (background_flags)
857	{
858	Display *dpy = target->dpy;
859	XRenderPictureAttributes pa;
860
861	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, target->visual);
862	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
863
864	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);
865	Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);
866
867	pa.repeat = True;
868	Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);
869	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
870	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
871	XFreePixmap (dpy, mask_pmap);
872
873	if (src && dst && mask)
874	{
875	XRenderColor mask_c;
876
877	mask_c.alpha = 0x8000;
878	mask_c.red = 0;
879	mask_c.green = 0;
880	mask_c.blue = 0;
881	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
882	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
883	}
884
885	XRenderFreePicture (dpy, src);
886	XRenderFreePicture (dpy, dst);
887	XRenderFreePicture (dpy, mask);
888
889	XFreePixmap (dpy, root_pmap);
890	}
891	#endif
892
893	if (result != pixbuf)
894	g_object_unref (result);
895
896	XFreeGC (target->dpy, gc);
897
898	ret = true;
899	}
900
901	return ret;
902	}	342	}
903	# endif /* HAVE_PIXBUF */
904		343
905	bool	344	void
906	bgPixmap_t::set_file (const char *file)	345	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
907	{	346	{
908	if (!file || !*file)	347	if (!file || !*file)
909	return false;	348	return;
910		349
911	if (const char *p = strchr (file, ';'))	350	const char *p = strchr (file, ';');
		351
		352	if (p)
912	{	353	{
913	size_t len = p - file;	354	size_t len = p - file;
914	char *f = rxvt_temp_buf<char> (len + 1);	355	char *f = rxvt_temp_buf<char> (len + 1);
915	memcpy (f, file, len);	356	memcpy (f, file, len);
916	f[len] = '\0';	357	f[len] = '\0';
917	file = f;	358	file = f;
918	}	359	}
919		360
920	# ifdef HAVE_AFTERIMAGE	361	set_file (s, file);
921	if (!target->asimman)	362	alpha = 0x8000;
922	target->asimman = create_generic_imageman (target->rs[Rs_path]);	363	set_geometry (p ? p + 1 : "");
923	ASImage *image = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	364	}
924	if (image)
925	{
926	if (original_asim)
927	safe_asimage_destroy (original_asim);
928	original_asim = image;
929	flags |= CLIENT_RENDER;
930	have_image = true;
931	return true;
932	}
933	# endif
934		365
935	# ifdef HAVE_PIXBUF	366	void
936	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	367	rxvt_image::set_file (rxvt_screen *s, const char *file)
937	if (image)	368	{
938	{	369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
939	if (pixbuf)	370	delete img;
940	g_object_unref (pixbuf);	371	img = img2;
941	pixbuf = image;
942	have_image = true;
943	return true;
944	}
945	# endif
946
947	return false;
948	}	372	}
949		373
950	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
951		375
952	# ifdef ENABLE_TRANSPARENCY
953	bool	376	bool
954	bgPixmap_t::set_transparent ()
955	{
956	if (!(flags & isTransparent))
957	{
958	flags |= isTransparent;
959	return true;
960	}
961
962	return false;
963	}
964
965	bool
966	bgPixmap_t::set_blur_radius (const char *geom)	377	image_effects::set_blur (const char *geom)
967	{	378	{
968	bool changed = false;	379	bool changed = false;
969	unsigned int hr, vr;	380	unsigned int hr, vr;
970	int junk;	381	int junk;
971	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
988	{	399	{
989	changed = true;	400	changed = true;
990	v_blurRadius = vr;	401	v_blurRadius = vr;
991	}	402	}
992		403
993	if (v_blurRadius == 0 && h_blurRadius == 0)
994	flags &= ~blurNeeded;
995	else
996	flags |= blurNeeded;
997
998	return changed;	404	return changed;
999	}	405	}
1000		406
1001	static inline unsigned long
1002	compute_tint_shade_flags (rxvt_color *tint, int shade)
1003	{
1004	unsigned long flags = 0;
1005	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1006	bool has_shade = shade != 100;
1007
1008	if (tint)
1009	{
1010	tint->get (c);
1011	if (!has_shade
1012	&& (c.r <= 0x00ff || c.r >= 0xff00)
1013	&& (c.g <= 0x00ff || c.g >= 0xff00)
1014	&& (c.b <= 0x00ff || c.b >= 0xff00))
1015	flags |= bgPixmap_t::tintWholesome;
1016	}
1017
1018	if (has_shade || tint)
1019	flags |= bgPixmap_t::tintNeeded;
1020
1021	return flags;
1022	}
1023
1024	bool	407	bool
1025	bgPixmap_t::set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
1026	{	409	{
1027	if (!(flags & tintSet) || tint != new_tint)	410	if (!tint_set || tint != new_tint)
1028	{	411	{
1029	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
1030	tint = new_tint;	412	tint = new_tint;
1031	flags = (flags & ~tintFlags) | new_flags | tintSet;	413	tint_set = true;
		414
1032	return true;	415	return true;
1033	}	416	}
1034		417
1035	return false;	418	return false;
1036	}	419	}
1037		420
1038	bool	421	bool
1039	bgPixmap_t::set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
1040	{	423	{
1041	int new_shade = (shade_str) ? atoi (shade_str) : 100;	424	int new_shade = atoi (shade_str);
1042		425
1043	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
1044	if (new_shade < 0)	427	if (new_shade < 0)
1045	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
1046		429
1047	if (new_shade != shade)	430	if (new_shade != shade)
1048	{	431	{
1049	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
1050	shade = new_shade;	432	shade = new_shade;
1051	flags = (flags & (~tintFlags | tintSet)) | new_flags;
1052	return true;	433	return true;
1053	}	434	}
1054		435
1055	return false;	436	return false;
1056	}	437	}
1057		438
1058	#if XRENDER	439	# if BG_IMAGE_FROM_ROOT
1059	static void	440	/*
1060	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1061	{
1062	double sigma = radius / 2.0;
1063	double scale = sqrt (2.0 * M_PI) * sigma;
1064	double sum = 0.0;
1065
1066	for (int i = 0; i < width; i++)
1067	{
1068	double x = i - width / 2;
1069	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1070	sum += kernel[i];
1071	}
1072
1073	params[0] = XDoubleToFixed (width);
1074	params[1] = XDoubleToFixed (1);
1075
1076	for (int i = 0; i < width; i++)
1077	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1078	}
1079	#endif
1080
1081	bool
1082	bgPixmap_t::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1083	{
1084	bool ret = false;
1085	#if XRENDER
1086	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1087	double *kernel = (double *)malloc (size * sizeof (double));
1088	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1089
1090	Display *dpy = target->dpy;
1091	XRenderPictureAttributes pa;
1092	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1093
1094	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1095	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1096
1097	if (kernel && params && src && dst)
1098	{
1099	if (h_blurRadius)
1100	{
1101	size = h_blurRadius * 2 + 1;
1102	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1103
1104	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1105	XRenderComposite (dpy,
1106	PictOpSrc,
1107	src,
1108	None,
1109	dst,
1110	0, 0,
1111	0, 0,
1112	0, 0,
1113	width, height);
1114	}
1115
1116	if (v_blurRadius)
1117	{
1118	size = v_blurRadius * 2 + 1;
1119	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1120	swap (params[0], params[1]);
1121
1122	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1123	XRenderComposite (dpy,
1124	PictOpSrc,
1125	src,
1126	None,
1127	dst,
1128	0, 0,
1129	0, 0,
1130	0, 0,
1131	width, height);
1132	}
1133
1134	ret = true;
1135	}
1136
1137	free (kernel);
1138	free (params);
1139	XRenderFreePicture (dpy, src);
1140	XRenderFreePicture (dpy, dst);
1141	#endif
1142	return ret;
1143	}
1144
1145	bool
1146	bgPixmap_t::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1147	{
1148	Display *dpy = target->dpy;
1149	bool ret = false;
1150
1151	if (flags & tintWholesome)
1152	{
1153	XGCValues gcv;
1154	GC gc;
1155
1156	/* In this case we can tint image server-side getting significant
1157	* performance improvements, as we eliminate XImage transfer
1158	*/
1159	gcv.foreground = Pixel (tint);
1160	gcv.function = GXand;
1161	gcv.fill_style = FillSolid;
1162	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1163	if (gc)
1164	{
1165	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1166	ret = true;
1167	XFreeGC (dpy, gc);
1168	}
1169	}
1170	else
1171	{
1172	# if XRENDER
1173	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1174
1175	if (flags & tintSet)
1176	tint.get (c);
1177
1178	if (shade <= 100)
1179	{
1180	c.r = (c.r * shade) / 100;
1181	c.g = (c.g * shade) / 100;
1182	c.b = (c.b * shade) / 100;
1183	}
1184	else
1185	{
1186	c.r = (c.r * (200 - shade)) / 100;
1187	c.g = (c.g * (200 - shade)) / 100;
1188	c.b = (c.b * (200 - shade)) / 100;
1189	}
1190
1191	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1192	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1193	XRenderPictureAttributes pa;
1194
1195	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1196
1197	pa.repeat = True;
1198
1199	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1200	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1201	XFreePixmap (dpy, overlay_pmap);
1202
1203	pa.component_alpha = True;
1204	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1205	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1206	XFreePixmap (dpy, mask_pmap);
1207
1208	if (mask_pic && overlay_pic && back_pic)
1209	{
1210	XRenderColor mask_c;
1211
1212	mask_c.red = mask_c.green = mask_c.blue = 0;
1213	mask_c.alpha = 0xffff;
1214	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1215
1216	mask_c.alpha = 0;
1217	mask_c.red = 0xffff - c.r;
1218	mask_c.green = 0xffff - c.g;
1219	mask_c.blue = 0xffff - c.b;
1220	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1221	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1222
1223	if (shade > 100)
1224	{
1225	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1226	mask_c.alpha = 0;
1227	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1228
1229	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1230	}
1231
1232	ret = true;
1233	}
1234
1235	XRenderFreePicture (dpy, mask_pic);
1236	XRenderFreePicture (dpy, overlay_pic);
1237	XRenderFreePicture (dpy, back_pic);
1238	# endif
1239	}
1240
1241	return ret;
1242	}
1243
1244	/* make_transparency_pixmap()
1245	* Builds a pixmap of the same size as the terminal window that contains	441	* Builds a pixmap of the same size as the terminal window that contains
1246	* the tiled portion of the root pixmap that is supposed to be covered by	442	* the tiled portion of the root pixmap that is supposed to be covered by
1247	* our window.	443	* our window.
1248	*/	444	*/
1249	unsigned long	445	bool
1250	bgPixmap_t::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
1251	{	447	{
1252	unsigned long result = 0;
1253
1254	if (target == NULL)
1255	return 0;
1256
1257	/* root dimensions may change from call to call - but Display structure should	448	/* root dimensions may change from call to call - but Display structure should
1258	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
1259	*/	450	*/
1260	int screen = target->display->screen;	451	int screen = display->screen;
1261	Display *dpy = target->dpy;
1262	int root_depth = DefaultDepth (dpy, screen);
1263	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
1264	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
1265	unsigned int root_pmap_width, root_pmap_height;
1266	int window_width = target->szHint.width;	454	int parent_width = szHint.width;
1267	int window_height = target->szHint.height;	455	int parent_height = szHint.height;
1268	int sx, sy;	456	int sx, sy;
1269	XGCValues gcv;
1270	GC gc;
1271		457
1272	sx = target_x;	458	sx = parent_x;
1273	sy = target_y;	459	sy = parent_y;
1274		460
1275	/* check if we are outside of the visible part of the virtual screen : */	461	/* check if we are outside of the visible part of the virtual screen : */
1276	if (sx + window_width <= 0 || sy + window_height <= 0	462	if (sx + parent_width <= 0 || sy + parent_height <= 0
1277	|| sx >= root_width || sy >= root_height)	463	|| sx >= root_width || sy >= root_height)
1278	return 0;	464	return 0;
1279		465
1280	// validate root pixmap and get its size	466	while (sx < 0) sx += root_img->w;
1281	if (root_pixmap != None)	467	while (sy < 0) sy += root_img->h;
1282	{
1283	Window wdummy;
1284	int idummy;
1285	unsigned int udummy;
1286		468
1287	target->allowedxerror = -1;	469	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1288		470
1289	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	471	if (root_effects.need_blur ())
1290	root_pixmap = None;	472	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1291		473
1292	target->allowedxerror = 0;	474	if (root_effects.need_tint ())
1293	}	475	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1294		476
1295	Pixmap recoded_root_pmap = root_pixmap;
1296
1297	if (root_pixmap != None && root_depth != target->depth)
1298	{
1299	#if XRENDER
1300	if (flags & HAS_RENDER)
1301	{
1302	XRenderPictureAttributes pa;
1303
1304	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1305	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1306
1307	recoded_root_pmap = XCreatePixmap (dpy, target->vt, root_pmap_width, root_pmap_height, target->depth);
1308	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);	477	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1309	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	478	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1310		479
1311	if (src && dst)	480	delete bg_img;
1312	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	481	bg_img = img;
1313	else
1314	{
1315	XFreePixmap (dpy, recoded_root_pmap);
1316	root_pixmap = None;
1317	}
1318		482
1319	XRenderFreePicture (dpy, src);	483	return true;
1320	XRenderFreePicture (dpy, dst);	484	}
1321	}	485
1322	else	486	void
		487	rxvt_term::bg_set_root_pixmap ()
		488	{
		489	delete root_img;
		490	root_img = rxvt_img::new_from_root (this);
		491	}
		492	# endif /* BG_IMAGE_FROM_ROOT */
		493
		494	void
		495	rxvt_term::bg_render ()
		496	{
		497	if (bg_flags & BG_INHIBIT_RENDER)
		498	return;
		499
		500	delete bg_img;
		501	bg_img = 0;
		502	bg_flags = 0;
		503
		504	if (!mapped)
		505	return;
		506
		507	# if BG_IMAGE_FROM_ROOT
		508	if (root_img)
		509	if (render_root_image ())
		510	bg_flags |= BG_IS_TRANSPARENT;
		511	# endif
		512
		513	# if BG_IMAGE_FROM_FILE
		514	if (fimage.img)
		515	render_image (fimage);
		516	# endif
		517
		518	scr_recolour (false);
		519	bg_flags |= BG_NEEDS_REFRESH;
		520
		521	bg_valid_since = ev::now ();
		522	}
		523
		524	void
		525	rxvt_term::bg_init ()
		526	{
		527	#if BG_IMAGE_FROM_ROOT
		528	if (option (Opt_transparent))
		529	{
		530	if (rs [Rs_blurradius])
		531	root_effects.set_blur (rs [Rs_blurradius]);
		532
		533	if (ISSET_PIXCOLOR (Color_tint))
		534	root_effects.set_tint (pix_colors_focused [Color_tint]);
		535
		536	if (rs [Rs_shade])
		537	root_effects.set_shade (rs [Rs_shade]);
		538
		539	bg_set_root_pixmap ();
		540	XSelectInput (dpy, display->root, PropertyChangeMask);
		541	rootwin_ev.start (display, display->root);
		542	}
1323	#endif	543	#endif
1324	root_pixmap = None;
1325	}
1326		544
1327	if (root_pixmap == None)
1328	return 0;
1329
1330	if (pixmap == None
1331	|| pmap_width != window_width
1332	|| pmap_height != window_height)
1333	{
1334	if (pixmap)
1335	XFreePixmap (target->dpy, pixmap);
1336	pixmap = XCreatePixmap (target->dpy, target->vt, window_width, window_height, target->depth);
1337	pmap_width = window_width;
1338	pmap_height = window_height;
1339	}
1340
1341	if (pixmap == None)
1342	return 0;
1343
1344	/* straightforward pixmap copy */
1345	while (sx < 0) sx += (int)root_width;
1346	while (sy < 0) sy += (int)root_height;
1347
1348	gcv.tile = recoded_root_pmap;
1349	gcv.fill_style = FillTiled;
1350	gcv.ts_x_origin = -sx;
1351	gcv.ts_y_origin = -sy;
1352	gc = XCreateGC (dpy, target->vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1353
1354	if (gc)
1355	{
1356	XFillRectangle (dpy, pixmap, gc, 0, 0, window_width, window_height);
1357	result |= transpPmapTiled;
1358	XFreeGC (dpy, gc);
1359
1360	if (!(flags & CLIENT_RENDER))
1361	{
1362	if ((flags & blurNeeded)
1363	&& (flags & HAS_RENDER_CONV))
1364	{
1365	if (blur_pixmap (pixmap, target->visual, window_width, window_height))
1366	result |= transpPmapBlurred;
1367	}
1368	if ((flags & tintNeeded)
1369	&& (flags & (tintWholesome | HAS_RENDER)))
1370	{
1371	if (tint_pixmap (pixmap, target->visual, window_width, window_height))
1372	result |= transpPmapTinted;
1373	}
1374	} /* server side rendering completed */
1375	}
1376
1377	if (recoded_root_pmap != root_pixmap)
1378	XFreePixmap (dpy, recoded_root_pmap);
1379
1380	return result;
1381	}
1382
1383	void
1384	bgPixmap_t::set_root_pixmap ()
1385	{
1386	Pixmap new_root_pixmap = target->get_pixmap_property (target->xa[XA_XROOTPMAP_ID]);
1387	if (new_root_pixmap == None)
1388	new_root_pixmap = target->get_pixmap_property (target->xa[XA_ESETROOT_PMAP_ID]);
1389
1390	root_pixmap = new_root_pixmap;
1391	}
1392	# endif /* ENABLE_TRANSPARENCY */
1393
1394	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1395	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1396	# endif
1397
1398	bool
1399	bgPixmap_t::render ()
1400	{
1401	unsigned long background_flags = 0;
1402
1403	if (target == NULL)
1404	return false;
1405
1406	invalidate ();
1407	# ifdef ENABLE_TRANSPARENCY
1408	if (flags & isTransparent)
1409	{
1410	/* we need to re-generate transparency pixmap in that case ! */
1411	background_flags = make_transparency_pixmap ();
1412	if (background_flags == 0)
1413	return false;
1414	else if ((background_flags & transpTransformations) == (flags & transpTransformations))
1415	flags &= ~isInvalid;
1416	}
1417	# endif
1418
1419	# ifdef BG_IMAGE_FROM_FILE	545	#if BG_IMAGE_FROM_FILE
1420	if (have_image	546	if (rs[Rs_backgroundPixmap])
1421	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1422	{
1423	if (render_image (background_flags))
1424	flags &= ~isInvalid;
1425	}	547	{
1426	# endif	548	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1427		549	if (!bg_window_position_sensitive ())
1428	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	550	update_background ();
1429	XImage *result = NULL;
1430
1431	if (background_flags && (flags & isInvalid))
1432	{
1433	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1434	}
1435
1436	if (result)
1437	{
1438	/* our own client-side tinting */
1439	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
1440	{
1441	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1442	if (flags & tintSet)
1443	tint.get (c);
1444	shade_ximage (DefaultVisual (target->dpy, target->display->screen), result, shade, c);
1445	}
1446
1447	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1448
1449	if (gc)
1450	{
1451	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1452
1453	XFreeGC (target->dpy, gc);
1454	flags &= ~isInvalid;
1455	}
1456
1457	XDestroyImage (result);
1458	}
1459	# endif
1460
1461	if (flags & isInvalid)
1462	{
1463	if (pixmap != None)
1464	{
1465	XFreePixmap (target->dpy, pixmap);
1466	pixmap = None;
1467	}
1468	}
1469
1470	apply ();
1471
1472	valid_since = ev::now ();
1473
1474	return true;
1475	}
1476
1477	void
1478	bgPixmap_t::set_target (rxvt_term *new_target)
1479	{
1480	target = new_target;
1481
1482	flags &= ~(HAS_RENDER | HAS_RENDER_CONV);
1483	#if XRENDER
1484	int major, minor;
1485	if (XRenderQueryVersion (target->dpy, &major, &minor))
1486	flags |= HAS_RENDER;
1487	XFilters *filters = XRenderQueryFilters (target->dpy, target->vt);
1488	if (filters)
1489	{
1490	for (int i = 0; i < filters->nfilter; i++)
1491	if (!strcmp (filters->filter[i], FilterConvolution))
1492	flags |= HAS_RENDER_CONV;
1493
1494	XFree (filters);
1495	}	551	}
1496	#endif	552	#endif
1497	}	553	}
1498		554
1499	void	555	void
1500	bgPixmap_t::apply ()	556	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1501	{	557	{
1502	if (target == NULL)	558	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1503	return;
1504		559
1505	if (pixmap != None)	560	if (tint_set)
1506	{	561	tint.get (c);
1507	/* set target's background to pixmap */
1508	# ifdef ENABLE_TRANSPARENCY
1509	if (flags & isTransparent)
1510	{
1511	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1512	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1513		562
1514	if (target->scrollBar.win)	563	if (shade > 100)
1515	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);	564	{
1516	}	565	c.r = c.r * (200 - shade) / 100;
1517	else	566	c.g = c.g * (200 - shade) / 100;
1518	# endif	567	c.b = c.b * (200 - shade) / 100;
1519	{
1520	/* force old pixmap dereference in case it was transparent before :*/
1521	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1522	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1523	/* do we also need to set scrollbar's background here ? */
1524
1525	if (target->scrollBar.win)
1526	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1527	}
1528	}	568	}
1529	else	569	else
1530	{	570	{
1531	/* set target background to a pixel */	571	c.r = c.r * shade / 100;
1532	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);	572	c.g = c.g * shade / 100;
1533	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);	573	c.b = c.b * shade / 100;
1534	/* do we also need to set scrollbar's background here ? */
1535	if (target->scrollBar.win)
1536	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1537	}
1538
1539	/* don't want Expose on the parent or vt. It is better to use
1540	scr_touch or we get a great deal of flicker otherwise: */
1541	XClearWindow (target->dpy, target->parent[0]);
1542
1543	if (target->scrollBar.state && target->scrollBar.win)
1544	{	574	}
1545	target->scrollBar.state = STATE_IDLE;	575
1546	target->scrollBar.show (0);	576	img->contrast (c.r, c.g, c.b, c.a);
		577
		578	if (shade > 100)
1547	}	579	{
1548		580	c.a = 0xffff;
1549	target->want_refresh = 1;	581	c.r =
1550	flags |= hasChanged;	582	c.g =
		583	c.b = 0xffff * (shade - 100) / 100;
		584	img->brightness (c.r, c.g, c.b, c.a);
		585	}
1551	}	586	}
1552		587
1553	#endif /* HAVE_BG_PIXMAP */	588	#endif /* HAVE_BG_PIXMAP */
1554
1555	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1556	/* taken from aterm-0.4.2 */
1557
1558	static void
1559	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1560	{
1561	int sh_r, sh_g, sh_b;
1562	uint32_t mask_r, mask_g, mask_b;
1563	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1564	rgba low;
1565	rgba high;
1566	int i;
1567	int host_byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
1568
1569	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1570
1571	/* for convenience */
1572	mask_r = visual->red_mask;
1573	mask_g = visual->green_mask;
1574	mask_b = visual->blue_mask;
1575
1576	/* boring lookup table pre-initialization */
1577	switch (ximage->depth)
1578	{
1579	case 15:
1580	if ((mask_r != 0x7c00) ||
1581	(mask_g != 0x03e0) ||
1582	(mask_b != 0x001f))
1583	return;
1584	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1585	lookup_r = lookup;
1586	lookup_g = lookup+32;
1587	lookup_b = lookup+32+32;
1588	sh_r = 10;
1589	sh_g = 5;
1590	sh_b = 0;
1591	break;
1592	case 16:
1593	if ((mask_r != 0xf800) ||
1594	(mask_g != 0x07e0) ||
1595	(mask_b != 0x001f))
1596	return;
1597	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1598	lookup_r = lookup;
1599	lookup_g = lookup+32;
1600	lookup_b = lookup+32+64;
1601	sh_r = 11;
1602	sh_g = 5;
1603	sh_b = 0;
1604	break;
1605	case 24:
1606	if ((mask_r != 0xff0000) ||
1607	(mask_g != 0x00ff00) ||
1608	(mask_b != 0x0000ff))
1609	return;
1610	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1611	lookup_r = lookup;
1612	lookup_g = lookup+256;
1613	lookup_b = lookup+256+256;
1614	sh_r = 16;
1615	sh_g = 8;
1616	sh_b = 0;
1617	break;
1618	case 32:
1619	if ((mask_r != 0xff0000) ||
1620	(mask_g != 0x00ff00) ||
1621	(mask_b != 0x0000ff))
1622	return;
1623	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1624	lookup_r = lookup;
1625	lookup_g = lookup+256;
1626	lookup_b = lookup+256+256;
1627	sh_r = 16;
1628	sh_g = 8;
1629	sh_b = 0;
1630	break;
1631	default:
1632	return; /* we do not support this color depth */
1633	}
1634
1635	/* prepare limits for color transformation (each channel is handled separately) */
1636	if (shade > 100)
1637	{
1638	shade = 200 - shade;
1639
1640	high.r = c.r * shade / 100;
1641	high.g = c.g * shade / 100;
1642	high.b = c.b * shade / 100;
1643
1644	low.r = 65535 * (100 - shade) / 100;
1645	low.g = 65535 * (100 - shade) / 100;
1646	low.b = 65535 * (100 - shade) / 100;
1647	}
1648	else
1649	{
1650	high.r = c.r * shade / 100;
1651	high.g = c.g * shade / 100;
1652	high.b = c.b * shade / 100;
1653
1654	low.r = low.g = low.b = 0;
1655	}
1656
1657	/* fill our lookup tables */
1658	for (i = 0; i <= mask_r>>sh_r; i++)
1659	{
1660	uint32_t tmp;
1661	tmp = i * high.r;
1662	tmp += (mask_r>>sh_r) * low.r;
1663	lookup_r[i] = (tmp/65535)<<sh_r;
1664	}
1665	for (i = 0; i <= mask_g>>sh_g; i++)
1666	{
1667	uint32_t tmp;
1668	tmp = i * high.g;
1669	tmp += (mask_g>>sh_g) * low.g;
1670	lookup_g[i] = (tmp/65535)<<sh_g;
1671	}
1672	for (i = 0; i <= mask_b>>sh_b; i++)
1673	{
1674	uint32_t tmp;
1675	tmp = i * high.b;
1676	tmp += (mask_b>>sh_b) * low.b;
1677	lookup_b[i] = (tmp/65535)<<sh_b;
1678	}
1679
1680	/* apply table to input image (replacing colors by newly calculated ones) */
1681	if (ximage->bits_per_pixel == 32
1682	&& (ximage->depth == 24 || ximage->depth == 32)
1683	&& ximage->byte_order == host_byte_order)
1684	{
1685	uint32_t *p1, *pf, *p, *pl;
1686	p1 = (uint32_t *) ximage->data;
1687	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1688
1689	while (p1 < pf)
1690	{
1691	p = p1;
1692	pl = p1 + ximage->width;
1693	for (; p < pl; p++)
1694	{
1695	*p = lookup_r[(*p & 0xff0000) >> 16] |
1696	lookup_g[(*p & 0x00ff00) >> 8] |
1697	lookup_b[(*p & 0x0000ff)] |
1698	(*p & 0xff000000);
1699	}
1700	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1701	}
1702	}
1703	else
1704	{
1705	for (int y = 0; y < ximage->height; y++)
1706	for (int x = 0; x < ximage->width; x++)
1707	{
1708	unsigned long pixel = XGetPixel (ximage, x, y);
1709	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1710	lookup_g[(pixel & mask_g) >> sh_g] |
1711	lookup_b[(pixel & mask_b) >> sh_b];
1712	XPutPixel (ximage, x, y, pixel);
1713	}
1714	}
1715
1716	free (lookup);
1717	}
1718	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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