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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.162 by sf-exg, Thu Aug 11 12:27:26 2011 UTC vs.
Revision 1.245 by sf-exg, Wed Jun 20 08:06:14 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 <schmorp@schmorp.de>	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	/*
38	* Pixmap geometry string interpretation :
39	* Each geometry string contains zero or one scale/position
40	* adjustment and may optionally be followed by a colon and one or more
41	* colon-delimited pixmap operations.
42	* The following table shows the valid geometry strings and their
43	* effects on the background image :
44	*
45	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
46	* W and H are percentages of the terminal window size.
47	* X and Y are also percentages; e.g., +50+50 centers
48	* the image in the window.
49	*
50	* Pixmap Operations : (should be prepended by a colon)
51	*/
52
53	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
54	void	30	void
55	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
56	{	32	{
57	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
58	if (original_asim)	34	delete root_img;
59	safe_asimage_destroy (original_asim);	35	root_img = 0;
60	if (asv)
61	destroy_asvisual (asv, 0);
62	if (asimman)
63	destroy_image_manager (asimman, 0);
64	#endif	36	# endif
65		37
66	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
67	if (pixbuf)	39	fimage.destroy ();
68	g_object_unref (pixbuf);
69	#endif	40	# endif
70		41
71	if (bg_pixmap)	42	delete bg_img;
72	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
73	}
74
75	bool
76	rxvt_term::bg_set_position (int x, int y)
77	{
78
79	if (target_x != x
80	|| target_y != y)
81	{
82	target_x = x;
83	target_y = y;
84	return true;
85	}
86	return false;
87	}	44	}
88		45
89	bool	46	bool
90	rxvt_term::bg_window_size_sensitive ()	47	rxvt_term::bg_window_size_sensitive ()
91	{	48	{
92	# ifdef ENABLE_TRANSPARENCY	49	# if ENABLE_TRANSPARENCY
93	if (bg_flags & BG_IS_TRANSPARENT)	50	if (bg_flags & BG_IS_TRANSPARENT)
94	return true;	51	return true;
95	# endif	52	# endif
96		53
97	# ifdef BG_IMAGE_FROM_FILE	54	# if BG_IMAGE_FROM_FILE
98	if (bg_flags & BG_IS_FROM_FILE)	55	if (fimage.img)
99	{	56	{
100	if (bg_flags & BG_IS_SIZE_SENSITIVE)	57	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		58	|| fimage.img->w > szHint.width
		59	|| fimage.img->h > szHint.height)
101	return true;	60	return true;
102	}	61	}
103	# endif	62	# endif
104		63
105	return false;	64	return false;
106	}	65	}
107		66
108	bool	67	bool
109	rxvt_term::bg_window_position_sensitive ()	68	rxvt_term::bg_window_position_sensitive ()
110	{	69	{
111	# ifdef ENABLE_TRANSPARENCY	70	# if ENABLE_TRANSPARENCY
112	if (bg_flags & BG_IS_TRANSPARENT)	71	if (bg_flags & BG_IS_TRANSPARENT)
113	return true;	72	return true;
114	# endif	73	# endif
115		74
116	# ifdef BG_IMAGE_FROM_FILE	75	# if BG_IMAGE_FROM_FILE
117	if (bg_flags & BG_IS_FROM_FILE)	76	if (fimage.img)
118	{	77	{
119	if (bg_flags & BG_ROOT_ALIGN)	78	if (fimage.flags & IM_ROOT_ALIGN)
120	return true;	79	return true;
121	}	80	}
122	# endif	81	# endif
123		82
124	return false;	83	return false;
125	}	84	}
126		85
127	# ifdef BG_IMAGE_FROM_FILE	86	# if BG_IMAGE_FROM_FILE
128	static inline bool
129	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
130	{
131	if (geom_flags & flag)
132	{
133	if (new_value > 1000)
134	new_value = 1000;
135	if (new_value != scale)
136	{
137	scale = new_value;
138	return true;
139	}
140	}
141	return false;
142	}
143
144	static inline bool
145	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
146	{
147	if (geom_flags & flag)
148	{
149	if (new_value < -100)
150	new_value = -100;
151	else if (new_value > 200)
152	new_value = 200;
153	if (new_value != align)
154	{
155	align = new_value;
156	return true;
157	}
158	}
159	return false;
160	}
161
162	static inline int	87	static inline int
163	make_align_position (int align, int window_size, int image_size)	88	make_align_position (int align, int window_size, int image_size)
164	{	89	{
165	int diff = window_size - image_size;
166	int smaller = min (image_size, window_size);
167
168	if (align >= 0 && align <= 100)	90	if (align >= 0 && align <= 100)
169	return diff * align / 100;	91	return lerp (0, window_size - image_size, align);
170	else if (align > 100 && align <= 200)	92	else if (align > 100)
171	return ((align - 100) * smaller / 100) + window_size - smaller;	93	return lerp (window_size - image_size, window_size, align - 100);
172	else if (align >= -100 && align < 0)	94	else
173	return ((align + 100) * smaller / 100) - image_size;	95	return lerp (-image_size, 0, align + 100);
174	return 0;
175	}	96	}
176		97
177	static inline int	98	static void
178	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	99	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
179	{	100	{
180	int src_pos = 0;	101	if (!strcasecmp (style, "tiled"))
181	dst_pos = pos;
182	dst_size = size;
183	if (pos < 0)
184	{
185	src_pos = -pos;
186	dst_pos = 0;
187	dst_size += pos;
188	}	102	{
189		103	flags = IM_TILE;
190	if (dst_pos + dst_size > target_size)	104	w = h = noScale;
191	dst_size = target_size - dst_pos;	105	x = y = 0;
192	return src_pos;	106	}
		107	else if (!strcasecmp (style, "aspect-stretched"))
		108	{
		109	flags = IM_KEEP_ASPECT;
		110	w = h = windowScale;
		111	x = y = centerAlign;
		112	}
		113	else if (!strcasecmp (style, "stretched"))
		114	{
		115	flags = 0;
		116	w = h = windowScale;
		117	x = y = centerAlign;
		118	}
		119	else if (!strcasecmp (style, "centered"))
		120	{
		121	flags = 0;
		122	w = h = noScale;
		123	x = y = centerAlign;
		124	}
		125	else if (!strcasecmp (style, "root-tiled"))
		126	{
		127	flags = IM_TILE|IM_ROOT_ALIGN;
		128	w = h = noScale;
		129	x = y = 0;
		130	}
193	}	131	}
194		132
195	bool	133	bool
196	rxvt_term::bg_set_geometry (const char *geom, bool update)	134	rxvt_image::set_geometry (const char *geom, bool update)
197	{	135	{
198	bool changed = false;	136	bool changed = false;
199	int geom_flags = 0;	137	int geom_flags = 0;
200	int x = 0, y = 0;	138	int x = h_align;
		139	int y = v_align;
201	unsigned int w = 0, h = 0;	140	unsigned int w = h_scale;
202	unsigned int n;	141	unsigned int h = v_scale;
203	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	142	uint8_t new_flags = 0;
204	const char *ops;
205		143
206	if (geom == NULL)	144	if (geom == NULL)
207	return false;	145	return false;
208		146
209	char str[256];	147	if (geom[0])
210
211	ops = strchr (geom, ':');
212	if (ops == NULL)
213	n = strlen (geom);
214	else
215	n = ops - geom;
216
217	if (n >= sizeof (str))
218	return false;
219
220	memcpy (str, geom, n);
221	str[n] = '\0';
222	rxvt_strtrim (str);
223
224	if (str[0])
225	{	148	{
226	/* we have geometry string - let's handle it prior to applying ops */	149	char **arr = rxvt_strsplit (':', geom);
		150
		151	for (int i = 0; arr[i]; i++)
		152	{
		153	if (!strncasecmp (arr[i], "style=", 6))
		154	{
		155	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		156	geom_flags = WidthValue|HeightValue|XValue|YValue;
		157	}
		158	else if (!strcasecmp (arr[i], "op=tile"))
		159	new_flags |= IM_TILE;
		160	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		161	new_flags |= IM_KEEP_ASPECT;
		162	else if (!strcasecmp (arr[i], "op=root-align"))
		163	new_flags |= IM_ROOT_ALIGN;
		164
		165	// deprecated
		166	else if (!strcasecmp (arr[i], "tile"))
		167	{
		168	new_flags |= IM_TILE;
		169	w = h = noScale;
		170	geom_flags |= WidthValue|HeightValue;
		171	}
		172	else if (!strcasecmp (arr[i], "propscale"))
		173	{
		174	new_flags |= IM_KEEP_ASPECT;
		175	w = h = windowScale;
		176	geom_flags |= WidthValue|HeightValue;
		177	}
		178	else if (!strcasecmp (arr[i], "hscale"))
		179	{
		180	new_flags |= IM_TILE;
		181	w = windowScale;
		182	h = noScale;
		183	geom_flags |= WidthValue|HeightValue;
		184	}
		185	else if (!strcasecmp (arr[i], "vscale"))
		186	{
		187	new_flags |= IM_TILE;
		188	h = windowScale;
		189	w = noScale;
		190	geom_flags |= WidthValue|HeightValue;
		191	}
		192	else if (!strcasecmp (arr[i], "scale"))
		193	{
		194	w = h = windowScale;
		195	geom_flags |= WidthValue|HeightValue;
		196	}
		197	else if (!strcasecmp (arr[i], "auto"))
		198	{
		199	w = h = windowScale;
		200	x = y = centerAlign;
		201	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		202	}
		203	else if (!strcasecmp (arr[i], "root"))
		204	{
		205	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		206	w = h = noScale;
		207	geom_flags |= WidthValue|HeightValue;
		208	}
		209
		210	else
227	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	211	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
228	} /* done parsing geometry string */	212	} /* done parsing ops */
		213
		214	rxvt_free_strsplit (arr);
		215	}
		216
		217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
229		218
230	if (!update)	219	if (!update)
231	{	220	{
232	if (!(geom_flags & XValue))	221	if (!(geom_flags & XValue))
233	x = y = defaultAlign;	222	x = y = defaultAlign;
…		…
238	w = h = defaultScale;	227	w = h = defaultScale;
239	else if (!(geom_flags & HeightValue))	228	else if (!(geom_flags & HeightValue))
240	h = w;	229	h = w;
241	else if (!(geom_flags & WidthValue))	230	else if (!(geom_flags & WidthValue))
242	w = h;	231	w = h;
243
244	geom_flags |= WidthValue|HeightValue|XValue|YValue;
245	}
246
247	if (ops)
248	{	232	}
249	char **arr = rxvt_strsplit (':', ops + 1);
250		233
251	for (int i = 0; arr[i]; i++)	234	clamp_it (x, -100, 200);
252	{	235	clamp_it (y, -100, 200);
253	if (!strcasecmp (arr[i], "style=tiled"))
254	{
255	new_flags = BG_TILE;
256	w = h = noScale;
257	x = y = 0;
258	geom_flags = WidthValue|HeightValue|XValue|YValue;
259	}
260	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
261	{
262	new_flags = BG_PROP_SCALE;
263	x = y = centerAlign;
264	geom_flags = XValue|YValue;
265	}
266	else if (!strcasecmp (arr[i], "style=stretched"))
267	{
268	new_flags = 0;
269	w = h = windowScale;
270	geom_flags = WidthValue|HeightValue;
271	}
272	else if (!strcasecmp (arr[i], "style=centered"))
273	{
274	new_flags = 0;
275	w = h = noScale;
276	x = y = centerAlign;
277	geom_flags = WidthValue|HeightValue|XValue|YValue;
278	}
279	else if (!strcasecmp (arr[i], "style=root-tiled"))
280	{
281	new_flags = BG_TILE|BG_ROOT_ALIGN;
282	w = h = noScale;
283	geom_flags = WidthValue|HeightValue;
284	}
285	else if (!strcasecmp (arr[i], "op=tile"))
286	new_flags |= BG_TILE;
287	else if (!strcasecmp (arr[i], "op=pscale"))
288	new_flags |= BG_PROP_SCALE;
289	else if (!strcasecmp (arr[i], "op=root"))
290	new_flags |= BG_ROOT_ALIGN;
291		236
292	// deprecated	237	if (flags != new_flags
293	else if (!strcasecmp (arr[i], "tile"))	238	|| h_scale != w
294	{	239	|| v_scale != h
295	new_flags |= BG_TILE;	240	|| h_align != x
296	w = h = noScale;	241	|| v_align != y)
297	geom_flags |= WidthValue|HeightValue;
298	}
299	else if (!strcasecmp (arr[i], "propscale"))
300	{
301	new_flags |= BG_PROP_SCALE;
302	}
303	else if (!strcasecmp (arr[i], "hscale"))
304	{
305	new_flags |= BG_TILE;
306	w = windowScale;
307	h = noScale;
308	geom_flags |= WidthValue|HeightValue;
309	}
310	else if (!strcasecmp (arr[i], "vscale"))
311	{
312	new_flags |= BG_TILE;
313	h = windowScale;
314	w = noScale;
315	geom_flags |= WidthValue|HeightValue;
316	}
317	else if (!strcasecmp (arr[i], "scale"))
318	{
319	w = h = windowScale;
320	geom_flags |= WidthValue|HeightValue;
321	}
322	else if (!strcasecmp (arr[i], "auto"))
323	{
324	w = h = windowScale;
325	x = y = centerAlign;
326	geom_flags |= WidthValue|HeightValue|XValue|YValue;
327	}
328	else if (!strcasecmp (arr[i], "root"))
329	{
330	new_flags |= BG_TILE|BG_ROOT_ALIGN;
331	w = h = noScale;
332	geom_flags |= WidthValue|HeightValue;
333	}
334	} /* done parsing ops */
335
336	rxvt_free_strsplit (arr);
337	}	242	{
338
339	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
340	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
341	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
342	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
343
344	if (new_flags != bg_flags)
345	{
346	bg_flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
347	changed = true;	248	changed = true;
348	}	249	}
349		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
350	return changed;	256	return changed;
351	}	257	}
352		258
353	void	259	void
354	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	260	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
355	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
356	int target_width = szHint.width;	264	int parent_width = szHint.width;
357	int target_height = szHint.height;	265	int parent_height = szHint.height;
		266	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		267	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
358		268
359	if (bg_flags & BG_PROP_SCALE)	269	w = h_scale * parent_width / 100;
		270	h = v_scale * parent_height / 100;
		271
		272	if (image.flags & IM_KEEP_ASPECT)
360	{	273	{
361	float scale = (float)target_width / image_width;	274	float scale = (float)w / image_width;
362	min_it (scale, (float)target_height / image_height);	275	min_it (scale, (float)h / image_height);
363	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
364	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
365	}	278	}
366	else
367	{
368	w = h_scale * target_width / 100;
369	h = v_scale * target_height / 100;
370	}
371		279
372	if (!w) w = image_width;	280	if (!w) w = image_width;
373	if (!h) h = image_height;	281	if (!h) h = image_height;
374		282
375	if (bg_flags & BG_ROOT_ALIGN)	283	if (image.flags & IM_ROOT_ALIGN)
376	{	284	{
377	x = -target_x;	285	x = -parent_x;
378	y = -target_y;	286	y = -parent_y;
379	}	287	}
380	else	288	else
381	{	289	{
382	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
383	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
384	}
385
386	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
387	if (!(bg_flags & BG_TILE)
388	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
389	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
390	|| w > target_width || h > target_height)
391	bg_flags |= BG_IS_SIZE_SENSITIVE;
392	}
393
394	# ifdef HAVE_AFTERIMAGE
395	bool
396	rxvt_term::render_image (unsigned long tr_flags)
397	{
398	init_asv ();
399
400	ASImage *background = NULL;
401	ARGB32 background_tint = TINT_LEAVE_SAME;
402
403	# ifdef ENABLE_TRANSPARENCY
404	if (tr_flags)
405	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
406
407	if (tr_flags & BG_NEEDS_TINT)
408	{	292	}
409	ShadingInfo as_shade;	293	}
410	as_shade.shading = shade;
411		294
412	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
413	if (bg_flags & BG_TINT_SET)	296	rxvt_term::render_image (rxvt_image &image)
414	tint.get (c);	297	{
415	as_shade.tintColor.red = c.r;
416	as_shade.tintColor.green = c.g;
417	as_shade.tintColor.blue = c.b;
418
419	background_tint = shading2tint32 (&as_shade);
420	}
421
422	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
423	{
424	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
425	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
426	100, ASIMAGE_QUALITY_DEFAULT);
427	if (tmp)
428	{
429	destroy_asimage (&background);
430	background = tmp;
431	}
432	}
433	# endif
434
435	ASImage *result = 0;
436
437	int target_width = szHint.width;	298	int parent_width = szHint.width;
438	int target_height = szHint.height;	299	int parent_height = szHint.height;
439	int new_pmap_width = target_width;
440	int new_pmap_height = target_height;
441		300
442	int x = 0;	301	int x = 0;
443	int y = 0;	302	int y = 0;
444	int w = 0;	303	int w = 0;
445	int h = 0;	304	int h = 0;
446		305
447	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
448	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
449		307
450	if (!original_asim	308	if (!(image.flags & IM_ROOT_ALIGN)
451	|| (!(bg_flags & BG_ROOT_ALIGN)
452	&& (x >= target_width	309	&& (x >= parent_width
453	|| y >= target_height	310	|| y >= parent_height
454	|| (x + w <= 0)	311	|| x + w <= 0
455	|| (y + h <= 0))))	312	|| y + h <= 0))
456	{	313	return false;
457	if (background)
458	{
459	new_pmap_width = background->width;
460	new_pmap_height = background->height;
461	result = background;
462		314
463	if (background_tint != TINT_LEAVE_SAME)	315	rxvt_img *img = image.img->scale (w, h);
464	{	316
465	ASImage *tmp = tile_asimage (asv, background, 0, 0,	317	if (image.flags & IM_TILE)
466	target_width, target_height, background_tint,	318	img->repeat_mode (RepeatNormal);
467	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
468	if (tmp)
469	result = tmp;
470	}
471	}
472	else
473	new_pmap_width = new_pmap_height = 0;
474	}
475	else	319	else
476	{	320	img->repeat_mode (RepeatNone);
477	result = original_asim;	321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
478		322
479	if ((w != original_asim->width)	323	if (bg_flags & BG_IS_VALID)
480	|| (h != original_asim->height))	324	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
481	{
482	result = scale_asimage (asv, original_asim,
483	w, h,
484	background ? ASA_ASImage : ASA_XImage,
485	100, ASIMAGE_QUALITY_DEFAULT);
486	}
487		325
488	if (background == NULL)	326	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
489	{	327	img->convert_format (format, pix_colors [Color_bg])->replace (img);
490	if (bg_flags & BG_TILE)
491	{
492	/* if tiling - pixmap has to be sized exactly as the image,
493	but there is no need to make it bigger than the window! */
494	new_pmap_width = min (result->width, target_width);
495	new_pmap_height = min (result->height, target_height);
496		328
497	/* we also need to tile our image in both directions */	329	delete bg_img;
498	ASImage *tmp = tile_asimage (asv, result,	330	bg_img = img;
499	(int)result->width - x,
500	(int)result->height - y,
501	new_pmap_width,
502	new_pmap_height,
503	TINT_LEAVE_SAME, ASA_XImage,
504	100, ASIMAGE_QUALITY_DEFAULT);
505	if (tmp)
506	{
507	if (result != original_asim)
508	destroy_asimage (&result);
509		331
510	result = tmp;
511	}
512	}
513	}
514	else
515	{
516	/* if blending background and image - pixmap has to be sized same as target window */
517	ASImageLayer *layers = create_image_layers (2);
518
519	layers[0].im = background;
520	layers[0].clip_width = target_width;
521	layers[0].clip_height = target_height;
522	layers[0].tint = background_tint;
523	layers[1].im = result;
524
525	if (bg_flags & BG_TILE)
526	{
527	/* tile horizontally */
528	while (x > 0) x -= (int)result->width;
529	layers[1].dst_x = x;
530	layers[1].clip_width = result->width+target_width;
531	}
532	else
533	{
534	/* clip horizontally */
535	layers[1].dst_x = x;
536	layers[1].clip_width = result->width;
537	}
538
539	if (bg_flags & BG_TILE)
540	{
541	while (y > 0) y -= (int)result->height;
542	layers[1].dst_y = y;
543	layers[1].clip_height = result->height + target_height;
544	}
545	else
546	{
547	layers[1].dst_y = y;
548	layers[1].clip_height = result->height;
549	}
550
551	if (rs[Rs_blendtype])
552	{
553	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
554	if (layers[1].merge_scanlines == NULL)
555	layers[1].merge_scanlines = alphablend_scanlines;
556	}
557
558	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
559	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
560
561	if (tmp)
562	{
563	if (result != original_asim)
564	destroy_asimage (&result);
565
566	result = tmp;
567	}
568
569	free (layers);
570	}
571	}
572
573	bool ret = false;
574
575	if (result)
576	{
577	XGCValues gcv;
578	GC gc;
579
580	/* create Pixmap */
581	if (bg_pixmap == None
582	|| bg_pmap_width != new_pmap_width
583	|| bg_pmap_height != new_pmap_height)
584	{
585	if (bg_pixmap)
586	XFreePixmap (dpy, bg_pixmap);
587	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
588	bg_pmap_width = new_pmap_width;
589	bg_pmap_height = new_pmap_height;
590	}
591	/* fill with background color (if result's not completely overlapping it) */
592	gcv.foreground = pix_colors[Color_bg];
593	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
594
595	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
596	int dst_width = result->width, dst_height = result->height;
597	if (background == NULL)
598	{
599	if (!(bg_flags & BG_TILE))
600	{
601	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
602	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
603	}
604
605	if (dst_x > 0 || dst_y > 0
606	|| dst_x + dst_width < new_pmap_width
607	|| dst_y + dst_height < new_pmap_height)
608	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
609	}
610
611	/* put result on pixmap */
612	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
613	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
614
615	if (result != background && result != original_asim)
616	destroy_asimage (&result);
617
618	XFreeGC (dpy, gc);
619
620	ret = true;
621	}
622
623	if (background)
624	destroy_asimage (&background);
625
626	return ret;
627	}
628	# endif /* HAVE_AFTERIMAGE */
629
630	# ifdef HAVE_PIXBUF
631	bool
632	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
633	int src_x, int src_y, int dst_x, int dst_y,
634	unsigned int width, unsigned int height)
635	{
636	XImage *ximage;
637	char *data, *line;
638	int bytes_per_pixel;
639	int width_r, width_g, width_b;
640	int sh_r, sh_g, sh_b;
641	int rowstride;
642	int channels;
643	unsigned char *row;
644
645	if (visual->c_class != TrueColor)
646	return false;
647
648	if (depth == 24 || depth == 32)
649	bytes_per_pixel = 4;
650	else if (depth == 15 || depth == 16)
651	bytes_per_pixel = 2;
652	else
653	return false;
654
655	width_r = ecb_popcount32 (visual->red_mask);
656	width_g = ecb_popcount32 (visual->green_mask);
657	width_b = ecb_popcount32 (visual->blue_mask);
658
659	if (width_r > 8 || width_g > 8 || width_b > 8)
660	return false;
661
662	sh_r = ecb_ctz32 (visual->red_mask);
663	sh_g = ecb_ctz32 (visual->green_mask);
664	sh_b = ecb_ctz32 (visual->blue_mask);
665
666	if (width > INT_MAX / height / bytes_per_pixel)
667	return false;
668
669	data = (char *)malloc (width * height * bytes_per_pixel);
670	if (!data)
671	return false;
672
673	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
674	width, height, bytes_per_pixel * 8, 0);
675	if (!ximage)
676	{
677	free (data);
678	return false;
679	}
680
681	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
682
683	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
684	channels = gdk_pixbuf_get_n_channels (pixbuf);
685	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
686	line = data;
687
688	for (int y = 0; y < height; y++)
689	{
690	for (int x = 0; x < width; x++)
691	{
692	unsigned char *pixel = row + x * channels;
693	uint32_t value;
694
695	value = ((pixel[0] >> (8 - width_r)) << sh_r)
696	| ((pixel[1] >> (8 - width_g)) << sh_g)
697	| ((pixel[2] >> (8 - width_b)) << sh_b);
698
699	if (bytes_per_pixel == 4)
700	((uint32_t *)line)[x] = value;
701	else
702	((uint16_t *)line)[x] = value;
703	}
704
705	row += rowstride;
706	line += ximage->bytes_per_line;
707	}
708
709	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
710	XDestroyImage (ximage);
711	return true;	332	return true;
712	}	333	}
713		334
714	bool	335	rxvt_image::rxvt_image ()
715	rxvt_term::render_image (unsigned long tr_flags)
716	{	336	{
717	if (!pixbuf)	337	alpha = 0xffff;
718	return false;	338	flags = 0;
		339	h_scale =
		340	v_scale = defaultScale;
		341	h_align =
		342	v_align = defaultAlign;
719		343
720	if (tr_flags	344	img = 0;
721	&& !(bg_flags & BG_HAS_RENDER))
722	return false;
723
724	GdkPixbuf *result;
725
726	int image_width = gdk_pixbuf_get_width (pixbuf);
727	int image_height = gdk_pixbuf_get_height (pixbuf);
728
729	int target_width = szHint.width;
730	int target_height = szHint.height;
731	int new_pmap_width = target_width;
732	int new_pmap_height = target_height;
733
734	int x = 0;
735	int y = 0;
736	int w = 0;
737	int h = 0;
738
739	get_image_geometry (image_width, image_height, w, h, x, y);
740
741	if (!(bg_flags & BG_ROOT_ALIGN)
742	&& (x >= target_width
743	|| y >= target_height
744	|| (x + w <= 0)
745	|| (y + h <= 0)))
746	return false;
747
748	result = pixbuf;
749
750	if ((w != image_width)
751	|| (h != image_height))
752	{
753	result = gdk_pixbuf_scale_simple (pixbuf,
754	w, h,
755	GDK_INTERP_BILINEAR);
756	}
757
758	if (!result)
759	return false;
760
761	bool ret = false;
762
763	XGCValues gcv;
764	GC gc;
765	Pixmap root_pmap;
766
767	image_width = gdk_pixbuf_get_width (result);
768	image_height = gdk_pixbuf_get_height (result);
769
770	if (tr_flags)
771	{
772	root_pmap = bg_pixmap;
773	bg_pixmap = None;
774	}
775	else
776	{
777	if (bg_flags & BG_TILE)
778	{
779	new_pmap_width = min (image_width, target_width);
780	new_pmap_height = min (image_height, target_height);
781	}
782	}
783
784	if (bg_pixmap == None
785	|| bg_pmap_width != new_pmap_width
786	|| bg_pmap_height != new_pmap_height)
787	{
788	if (bg_pixmap)
789	XFreePixmap (dpy, bg_pixmap);
790	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
791	bg_pmap_width = new_pmap_width;
792	bg_pmap_height = new_pmap_height;
793	}
794
795	gcv.foreground = pix_colors[Color_bg];
796	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
797
798	if (gc)
799	{
800	if (bg_flags & BG_TILE)
801	{
802	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
803	pixbuf_to_pixmap (result, tile, gc,
804	0, 0,
805	0, 0,
806	image_width, image_height);
807
808	gcv.tile = tile;
809	gcv.fill_style = FillTiled;
810	gcv.ts_x_origin = x;
811	gcv.ts_y_origin = y;
812	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
813
814	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
815	XFreePixmap (dpy, tile);
816	}
817	else
818	{
819	int src_x, src_y, dst_x, dst_y;
820	int dst_width, dst_height;
821
822	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
823	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
824
825	if (dst_x > 0 || dst_y > 0
826	|| dst_x + dst_width < new_pmap_width
827	|| dst_y + dst_height < new_pmap_height)
828	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
829
830	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
831	pixbuf_to_pixmap (result, bg_pixmap, gc,
832	src_x, src_y,
833	dst_x, dst_y,
834	dst_width, dst_height);
835	}
836
837	#if XRENDER
838	if (tr_flags)
839	{
840	XRenderPictureAttributes pa;
841
842	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);
843	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
844
845	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
846	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
847
848	pa.repeat = True;
849	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
850	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
851	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
852	XFreePixmap (dpy, mask_pmap);
853
854	XRenderColor mask_c;
855
856	mask_c.alpha = 0x8000;
857	mask_c.red = 0;
858	mask_c.green = 0;
859	mask_c.blue = 0;
860	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
861	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
862
863	XRenderFreePicture (dpy, src);
864	XRenderFreePicture (dpy, dst);
865	XRenderFreePicture (dpy, mask);
866	}
867	#endif
868
869	XFreeGC (dpy, gc);
870
871	ret = true;
872	}
873
874	if (result != pixbuf)
875	g_object_unref (result);
876
877	if (tr_flags)
878	XFreePixmap (dpy, root_pmap);
879
880	return ret;
881	}	345	}
882	# endif /* HAVE_PIXBUF */
883		346
884	bool	347	void
885	rxvt_term::bg_set_file (const char *file)	348	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
886	{	349	{
887	if (!file || !*file)	350	if (!file || !*file)
888	return false;	351	return;
889		352
890	if (const char *p = strchr (file, ';'))	353	const char *p = strchr (file, ';');
		354
		355	if (p)
891	{	356	{
892	size_t len = p - file;	357	size_t len = p - file;
893	char *f = rxvt_temp_buf<char> (len + 1);	358	char *f = rxvt_temp_buf<char> (len + 1);
894	memcpy (f, file, len);	359	memcpy (f, file, len);
895	f[len] = '\0';	360	f[len] = '\0';
896	file = f;	361	file = f;
897	}	362	}
898		363
899	# ifdef HAVE_AFTERIMAGE	364	set_file (s, file);
900	if (!asimman)	365	alpha = 0x8000;
901	asimman = create_generic_imageman (rs[Rs_path]);	366	set_geometry (p ? p + 1 : "");
902	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	367	}
903	if (image)
904	{
905	if (original_asim)
906	safe_asimage_destroy (original_asim);
907	original_asim = image;
908	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
909	return true;
910	}
911	# endif
912		368
913	# ifdef HAVE_PIXBUF	369	void
914	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	370	rxvt_image::set_file (rxvt_screen *s, const char *file)
915	if (image)	371	{
916	{	372	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
917	if (pixbuf)	373	delete img;
918	g_object_unref (pixbuf);	374	img = img2;
919	pixbuf = image;
920	bg_flags |= BG_IS_FROM_FILE;
921	return true;
922	}
923	# endif
924
925	return false;
926	}	375	}
927		376
928	# endif /* BG_IMAGE_FROM_FILE */	377	# endif /* BG_IMAGE_FROM_FILE */
929		378
930	# ifdef ENABLE_TRANSPARENCY
931	bool	379	bool
932	rxvt_term::bg_set_transparent ()	380	image_effects::set_blur (const char *geom)
933	{
934	if (!(bg_flags & BG_IS_TRANSPARENT))
935	{
936	bg_flags |= BG_IS_TRANSPARENT;
937	return true;
938	}
939
940	return false;
941	}
942
943	bool
944	rxvt_term::bg_set_blur (const char *geom)
945	{	381	{
946	bool changed = false;	382	bool changed = false;
947	unsigned int hr, vr;	383	unsigned int hr, vr;
948	int junk;	384	int junk;
949	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	385	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
966	{	402	{
967	changed = true;	403	changed = true;
968	v_blurRadius = vr;	404	v_blurRadius = vr;
969	}	405	}
970		406
971	if (v_blurRadius == 0 && h_blurRadius == 0)
972	bg_flags &= ~BG_NEEDS_BLUR;
973	else
974	bg_flags |= BG_NEEDS_BLUR;
975
976	return changed;	407	return changed;
977	}	408	}
978		409
979	void
980	rxvt_term::set_tint_shade_flags ()
981	{
982	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
983	bool has_shade = shade != 100;
984
985	bg_flags &= ~BG_TINT_FLAGS;
986
987	if (bg_flags & BG_TINT_SET)
988	{
989	tint.get (c);
990	if (!has_shade
991	&& (c.r <= 0x00ff || c.r >= 0xff00)
992	&& (c.g <= 0x00ff || c.g >= 0xff00)
993	&& (c.b <= 0x00ff || c.b >= 0xff00))
994	bg_flags |= BG_TINT_BITAND;
995	}
996
997	if (has_shade || (bg_flags & BG_TINT_SET))
998	bg_flags |= BG_NEEDS_TINT;
999	}
1000
1001	bool	410	bool
1002	rxvt_term::bg_set_tint (rxvt_color &new_tint)	411	image_effects::set_tint (const rxvt_color &new_tint)
1003	{	412	{
1004	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	413	if (!tint_set || tint != new_tint)
1005	{	414	{
1006	tint = new_tint;	415	tint = new_tint;
1007	bg_flags |= BG_TINT_SET;	416	tint_set = true;
1008	set_tint_shade_flags ();	417
1009	return true;	418	return true;
1010	}	419	}
1011		420
1012	return false;	421	return false;
1013	}	422	}
1014		423
1015	bool	424	bool
1016	rxvt_term::bg_set_shade (const char *shade_str)	425	image_effects::set_shade (const char *shade_str)
1017	{	426	{
1018	int new_shade = (shade_str) ? atoi (shade_str) : 100;	427	int new_shade = atoi (shade_str);
1019		428
1020	clamp_it (new_shade, -100, 200);	429	clamp_it (new_shade, -100, 200);
1021	if (new_shade < 0)	430	if (new_shade < 0)
1022	new_shade = 200 - (100 + new_shade);	431	new_shade = 200 - (100 + new_shade);
1023		432
1024	if (new_shade != shade)	433	if (new_shade != shade)
1025	{	434	{
1026	shade = new_shade;	435	shade = new_shade;
1027	set_tint_shade_flags ();
1028	return true;	436	return true;
1029	}	437	}
1030		438
1031	return false;	439	return false;
1032	}	440	}
1033		441
1034	#if XRENDER	442	# if ENABLE_TRANSPARENCY
1035	static void
1036	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1037	{
1038	double sigma = radius / 2.0;
1039	double scale = sqrt (2.0 * M_PI) * sigma;
1040	double sum = 0.0;
1041
1042	for (int i = 0; i < width; i++)
1043	{
1044	double x = i - width / 2;
1045	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1046	sum += kernel[i];
1047	}
1048
1049	params[0] = XDoubleToFixed (width);
1050	params[1] = XDoubleToFixed (1);
1051
1052	for (int i = 0; i < width; i++)
1053	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1054	}
1055	#endif
1056
1057	bool
1058	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1059	{
1060	bool ret = false;
1061	#if XRENDER
1062	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1063	double *kernel = (double *)malloc (size * sizeof (double));
1064	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1065
1066	XRenderPictureAttributes pa;
1067	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1068
1069	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1070	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1071
1072	if (kernel && params)
1073	{
1074	if (h_blurRadius)
1075	{
1076	size = h_blurRadius * 2 + 1;
1077	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1078
1079	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1080	XRenderComposite (dpy,
1081	PictOpSrc,
1082	src,
1083	None,
1084	dst,
1085	0, 0,
1086	0, 0,
1087	0, 0,
1088	width, height);
1089	}
1090
1091	if (v_blurRadius)
1092	{
1093	size = v_blurRadius * 2 + 1;
1094	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1095	::swap (params[0], params[1]);
1096
1097	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1098	XRenderComposite (dpy,
1099	PictOpSrc,
1100	src,
1101	None,
1102	dst,
1103	0, 0,
1104	0, 0,
1105	0, 0,
1106	width, height);
1107	}
1108
1109	ret = true;
1110	}
1111
1112	free (kernel);
1113	free (params);
1114	XRenderFreePicture (dpy, src);
1115	XRenderFreePicture (dpy, dst);
1116	#endif
1117	return ret;
1118	}
1119
1120	bool
1121	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1122	{
1123	bool ret = false;
1124
1125	if (bg_flags & BG_TINT_BITAND)
1126	{
1127	XGCValues gcv;
1128	GC gc;
1129
1130	/* In this case we can tint image server-side getting significant
1131	* performance improvements, as we eliminate XImage transfer
1132	*/
1133	gcv.foreground = Pixel (tint);
1134	gcv.function = GXand;
1135	gcv.fill_style = FillSolid;
1136	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1137	if (gc)
1138	{
1139	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1140	ret = true;
1141	XFreeGC (dpy, gc);
1142	}
1143	}
1144	else
1145	{
1146	# if XRENDER
1147	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1148
1149	if (bg_flags & BG_TINT_SET)
1150	tint.get (c);
1151
1152	if (shade <= 100)
1153	{
1154	c.r = c.r * shade / 100;
1155	c.g = c.g * shade / 100;
1156	c.b = c.b * shade / 100;
1157	}
1158	else
1159	{
1160	c.r = c.r * (200 - shade) / 100;
1161	c.g = c.g * (200 - shade) / 100;
1162	c.b = c.b * (200 - shade) / 100;
1163	}
1164
1165	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1166	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1167	XRenderPictureAttributes pa;
1168
1169	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1170
1171	pa.repeat = True;
1172
1173	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1174	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1175	XFreePixmap (dpy, overlay_pmap);
1176
1177	pa.component_alpha = True;
1178	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1179	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1180	XFreePixmap (dpy, mask_pmap);
1181
1182	XRenderColor mask_c;
1183
1184	mask_c.alpha = 0xffff;
1185	mask_c.red =
1186	mask_c.green =
1187	mask_c.blue = 0;
1188	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1189
1190	mask_c.alpha = 0;
1191	mask_c.red = 0xffff - c.r;
1192	mask_c.green = 0xffff - c.g;
1193	mask_c.blue = 0xffff - c.b;
1194	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1195	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1196
1197	if (shade > 100)
1198	{
1199	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1200	mask_c.alpha = 0;
1201	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1202
1203	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1204	}
1205
1206	ret = true;
1207
1208	XRenderFreePicture (dpy, mask_pic);
1209	XRenderFreePicture (dpy, overlay_pic);
1210	XRenderFreePicture (dpy, back_pic);
1211	# endif
1212	}
1213
1214	return ret;
1215	}
1216
1217	/*	443	/*
1218	* Builds a pixmap of the same size as the terminal window that contains	444	* Builds a pixmap of the same size as the terminal window that contains
1219	* the tiled portion of the root pixmap that is supposed to be covered by	445	* the tiled portion of the root pixmap that is supposed to be covered by
1220	* our window.	446	* our window.
1221	*/	447	*/
1222	unsigned long	448	bool
1223	rxvt_term::make_transparency_pixmap ()	449	rxvt_term::render_root_image ()
1224	{	450	{
1225	unsigned long result = 0;
1226
1227	/* root dimensions may change from call to call - but Display structure should	451	/* root dimensions may change from call to call - but Display structure should
1228	* be always up-to-date, so let's use it :	452	* be always up-to-date, so let's use it :
1229	*/	453	*/
1230	int screen = display->screen;	454	int screen = display->screen;
1231	int root_depth = DefaultDepth (dpy, screen);
1232	int root_width = DisplayWidth (dpy, screen);	455	int root_width = DisplayWidth (dpy, screen);
1233	int root_height = DisplayHeight (dpy, screen);	456	int root_height = DisplayHeight (dpy, screen);
1234	unsigned int root_pmap_width, root_pmap_height;
1235	int window_width = szHint.width;	457	int parent_width = szHint.width;
1236	int window_height = szHint.height;	458	int parent_height = szHint.height;
1237	int sx, sy;	459	int sx, sy;
1238	XGCValues gcv;
1239	GC gc;
1240		460
1241	sx = target_x;	461	sx = parent_x;
1242	sy = target_y;	462	sy = parent_y;
		463
		464	if (!root_img)
		465	return false;
1243		466
1244	/* check if we are outside of the visible part of the virtual screen : */	467	/* check if we are outside of the visible part of the virtual screen : */
1245	if (sx + window_width <= 0 || sy + window_height <= 0	468	if (sx + parent_width <= 0 || sy + parent_height <= 0
1246	|| sx >= root_width || sy >= root_height)	469	|| sx >= root_width || sy >= root_height)
1247	return 0;	470	return 0;
1248		471
1249	// validate root pixmap and get its size	472	while (sx < 0) sx += root_img->w;
1250	if (root_pixmap != None)	473	while (sy < 0) sy += root_img->h;
1251	{
1252	Window wdummy;
1253	int idummy;
1254	unsigned int udummy;
1255		474
1256	allowedxerror = -1;	475	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1257		476
1258	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	477	if (root_effects.need_blur ())
1259	root_pixmap = None;	478	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1260		479
1261	allowedxerror = 0;	480	if (root_effects.need_tint ())
1262	}	481	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1263		482
1264	Pixmap recoded_root_pmap = root_pixmap;
1265
1266	if (root_pixmap != None && root_depth != depth)
1267	{
1268	#if XRENDER
1269	if (bg_flags & BG_HAS_RENDER)
1270	{
1271	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1272
1273	XRenderPictureAttributes pa;
1274
1275	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1276	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1277
1278	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	483	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1279	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	484	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1280		485
1281	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	486	delete bg_img;
		487	bg_img = img;
1282		488
1283	XRenderFreePicture (dpy, src);
1284	XRenderFreePicture (dpy, dst);
1285	}
1286	else
1287	#endif
1288	recoded_root_pmap = None;
1289	}
1290
1291	if (recoded_root_pmap == None)
1292	return 0;
1293
1294	if (bg_pixmap == None
1295	|| bg_pmap_width != window_width
1296	|| bg_pmap_height != window_height)
1297	{
1298	if (bg_pixmap)
1299	XFreePixmap (dpy, bg_pixmap);
1300	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1301	bg_pmap_width = window_width;
1302	bg_pmap_height = window_height;
1303	}
1304
1305	/* straightforward pixmap copy */
1306	while (sx < 0) sx += root_width;
1307	while (sy < 0) sy += root_height;
1308
1309	gcv.tile = recoded_root_pmap;
1310	gcv.fill_style = FillTiled;
1311	gcv.ts_x_origin = -sx;
1312	gcv.ts_y_origin = -sy;
1313	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1314
1315	if (gc)
1316	{
1317	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1318	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1319	XFreeGC (dpy, gc);
1320
1321	if (!(bg_flags & BG_CLIENT_RENDER))
1322	{
1323	if ((bg_flags & BG_NEEDS_BLUR)
1324	&& (bg_flags & BG_HAS_RENDER_CONV))
1325	{
1326	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1327	result &= ~BG_NEEDS_BLUR;
1328	}
1329	if ((bg_flags & BG_NEEDS_TINT)
1330	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1331	{
1332	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1333	result &= ~BG_NEEDS_TINT;
1334	}
1335	} /* server side rendering completed */
1336	}
1337
1338	if (recoded_root_pmap != root_pixmap)
1339	XFreePixmap (dpy, recoded_root_pmap);
1340
1341	return result;	489	return true;
1342	}	490	}
1343		491
1344	void	492	void
1345	rxvt_term::bg_set_root_pixmap ()	493	rxvt_term::bg_set_root_pixmap ()
1346	{	494	{
1347	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	495	delete root_img;
1348	if (new_root_pixmap == None)	496	root_img = rxvt_img::new_from_root (this);
1349	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1350
1351	root_pixmap = new_root_pixmap;
1352	}	497	}
1353	# endif /* ENABLE_TRANSPARENCY */	498	# endif /* ENABLE_TRANSPARENCY */
1354		499
1355	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	500	void
1356	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1357	# endif
1358
1359	bool
1360	rxvt_term::bg_render ()	501	rxvt_term::bg_render ()
1361	{	502	{
1362	unsigned long tr_flags = 0;	503	if (bg_flags & BG_INHIBIT_RENDER)
		504	return;
1363		505
1364	bg_invalidate ();	506	bg_invalidate ();
1365	# ifdef ENABLE_TRANSPARENCY	507	# if ENABLE_TRANSPARENCY
1366	if (bg_flags & BG_IS_TRANSPARENT)	508	if (bg_flags & BG_IS_TRANSPARENT)
1367	{	509	{
1368	/* we need to re-generate transparency pixmap in that case ! */	510	/* we need to re-generate transparency pixmap in that case ! */
1369	tr_flags = make_transparency_pixmap ();	511	if (render_root_image ())
1370	if (tr_flags == 0)
1371	return false;
1372	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1373	bg_flags |= BG_IS_VALID;	512	bg_flags |= BG_IS_VALID;
1374	}	513	}
1375	# endif	514	# endif
1376		515
1377	# ifdef BG_IMAGE_FROM_FILE	516	# if BG_IMAGE_FROM_FILE
1378	if ((bg_flags & BG_IS_FROM_FILE)	517	if (fimage.img)
1379	|| (tr_flags & BG_EFFECTS_FLAGS))
1380	{	518	{
1381	if (render_image (tr_flags))	519	if (render_image (fimage))
1382	bg_flags |= BG_IS_VALID;	520	bg_flags |= BG_IS_VALID;
1383	}	521	}
1384	# endif	522	# endif
1385		523
1386	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1387	XImage *result = NULL;
1388
1389	if (tr_flags && !(bg_flags & BG_IS_VALID))
1390	{
1391	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1392	}
1393
1394	if (result)
1395	{
1396	/* our own client-side tinting */
1397	if (tr_flags & BG_NEEDS_TINT)
1398	{
1399	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1400	if (bg_flags & BG_TINT_SET)
1401	tint.get (c);
1402	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1403	}
1404
1405	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1406
1407	if (gc)
1408	{
1409	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1410
1411	XFreeGC (dpy, gc);
1412	bg_flags |= BG_IS_VALID;
1413	}
1414
1415	XDestroyImage (result);
1416	}
1417	# endif
1418
1419	if (!(bg_flags & BG_IS_VALID))	524	if (!(bg_flags & BG_IS_VALID))
1420	{	525	{
1421	if (bg_pixmap != None)	526	delete bg_img;
1422	{	527	bg_img = 0;
1423	XFreePixmap (dpy, bg_pixmap);
1424	bg_pixmap = None;
1425	}
1426	}	528	}
1427		529
1428	scr_recolour (false);	530	scr_recolour (false);
1429	bg_flags |= BG_NEEDS_REFRESH;	531	bg_flags |= BG_NEEDS_REFRESH;
1430		532
1431	bg_valid_since = ev::now ();	533	bg_valid_since = ev::now ();
1432
1433	return true;
1434	}	534	}
1435		535
1436	void	536	void
1437	rxvt_term::bg_init ()	537	rxvt_term::bg_init ()
1438	{	538	{
1439	#ifdef ENABLE_TRANSPARENCY	539	#if ENABLE_TRANSPARENCY
1440	shade = 100;	540	if (option (Opt_transparent))
		541	{
		542	bg_set_transparent ();
		543
		544	if (rs [Rs_blurradius])
		545	root_effects.set_blur (rs [Rs_blurradius]);
		546
		547	if (ISSET_PIXCOLOR (Color_tint))
		548	root_effects.set_tint (pix_colors_focused [Color_tint]);
		549
		550	if (rs [Rs_shade])
		551	root_effects.set_shade (rs [Rs_shade]);
		552
		553	bg_set_root_pixmap ();
		554	XSelectInput (dpy, display->root, PropertyChangeMask);
		555	rootwin_ev.start (display, display->root);
		556	}
1441	#endif	557	#endif
1442		558
1443	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	559	#if BG_IMAGE_FROM_FILE
1444	#if XRENDER	560	if (rs[Rs_backgroundPixmap])
1445	int major, minor;
1446	if (XRenderQueryVersion (dpy, &major, &minor))
1447	bg_flags |= BG_HAS_RENDER;
1448	XFilters *filters = XRenderQueryFilters (dpy, vt);
1449	if (filters)
1450	{	561	{
1451	for (int i = 0; i < filters->nfilter; i++)	562	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1452	if (!strcmp (filters->filter[i], FilterConvolution))	563	if (!bg_window_position_sensitive ())
1453	bg_flags |= BG_HAS_RENDER_CONV;	564	update_background ();
1454
1455	XFree (filters);
1456	}	565	}
1457	#endif	566	#endif
1458	}	567	}
1459		568
		569	void
		570	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		571	{
		572	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		573
		574	if (tint_set)
		575	tint.get (c);
		576
		577	if (shade > 100)
		578	{
		579	c.r = c.r * (200 - shade) / 100;
		580	c.g = c.g * (200 - shade) / 100;
		581	c.b = c.b * (200 - shade) / 100;
		582	}
		583	else
		584	{
		585	c.r = c.r * shade / 100;
		586	c.g = c.g * shade / 100;
		587	c.b = c.b * shade / 100;
		588	}
		589
		590	img->contrast (c.r, c.g, c.b, c.a);
		591
		592	if (shade > 100)
		593	{
		594	c.a = 0xffff;
		595	c.r =
		596	c.g =
		597	c.b = 0xffff * (shade - 100) / 100;
		598	img->brightness (c.r, c.g, c.b, c.a);
		599	}
		600	}
		601
1460	#endif /* HAVE_BG_PIXMAP */	602	#endif /* HAVE_BG_PIXMAP */
1461
1462	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1463	/* taken from aterm-0.4.2 */
1464
1465	static void
1466	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1467	{
1468	int sh_r, sh_g, sh_b;
1469	uint32_t mask_r, mask_g, mask_b;
1470	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1471	rgba low;
1472	rgba high;
1473	int i;
1474	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1475
1476	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1477
1478	/* for convenience */
1479	mask_r = visual->red_mask;
1480	mask_g = visual->green_mask;
1481	mask_b = visual->blue_mask;
1482
1483	/* boring lookup table pre-initialization */
1484	switch (ximage->depth)
1485	{
1486	case 15:
1487	if ((mask_r != 0x7c00) ||
1488	(mask_g != 0x03e0) ||
1489	(mask_b != 0x001f))
1490	return;
1491	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1492	lookup_r = lookup;
1493	lookup_g = lookup+32;
1494	lookup_b = lookup+32+32;
1495	sh_r = 10;
1496	sh_g = 5;
1497	sh_b = 0;
1498	break;
1499	case 16:
1500	if ((mask_r != 0xf800) ||
1501	(mask_g != 0x07e0) ||
1502	(mask_b != 0x001f))
1503	return;
1504	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1505	lookup_r = lookup;
1506	lookup_g = lookup+32;
1507	lookup_b = lookup+32+64;
1508	sh_r = 11;
1509	sh_g = 5;
1510	sh_b = 0;
1511	break;
1512	case 24:
1513	if ((mask_r != 0xff0000) ||
1514	(mask_g != 0x00ff00) ||
1515	(mask_b != 0x0000ff))
1516	return;
1517	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1518	lookup_r = lookup;
1519	lookup_g = lookup+256;
1520	lookup_b = lookup+256+256;
1521	sh_r = 16;
1522	sh_g = 8;
1523	sh_b = 0;
1524	break;
1525	case 32:
1526	if ((mask_r != 0xff0000) ||
1527	(mask_g != 0x00ff00) ||
1528	(mask_b != 0x0000ff))
1529	return;
1530	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1531	lookup_r = lookup;
1532	lookup_g = lookup+256;
1533	lookup_b = lookup+256+256;
1534	sh_r = 16;
1535	sh_g = 8;
1536	sh_b = 0;
1537	break;
1538	default:
1539	return; /* we do not support this color depth */
1540	}
1541
1542	/* prepare limits for color transformation (each channel is handled separately) */
1543	if (shade > 100)
1544	{
1545	shade = 200 - shade;
1546
1547	high.r = c.r * shade / 100;
1548	high.g = c.g * shade / 100;
1549	high.b = c.b * shade / 100;
1550
1551	low.r = 65535 * (100 - shade) / 100;
1552	low.g = 65535 * (100 - shade) / 100;
1553	low.b = 65535 * (100 - shade) / 100;
1554	}
1555	else
1556	{
1557	high.r = c.r * shade / 100;
1558	high.g = c.g * shade / 100;
1559	high.b = c.b * shade / 100;
1560
1561	low.r = low.g = low.b = 0;
1562	}
1563
1564	/* fill our lookup tables */
1565	for (i = 0; i <= mask_r>>sh_r; i++)
1566	{
1567	uint32_t tmp;
1568	tmp = i * high.r;
1569	tmp += (mask_r>>sh_r) * low.r;
1570	lookup_r[i] = (tmp/65535)<<sh_r;
1571	}
1572	for (i = 0; i <= mask_g>>sh_g; i++)
1573	{
1574	uint32_t tmp;
1575	tmp = i * high.g;
1576	tmp += (mask_g>>sh_g) * low.g;
1577	lookup_g[i] = (tmp/65535)<<sh_g;
1578	}
1579	for (i = 0; i <= mask_b>>sh_b; i++)
1580	{
1581	uint32_t tmp;
1582	tmp = i * high.b;
1583	tmp += (mask_b>>sh_b) * low.b;
1584	lookup_b[i] = (tmp/65535)<<sh_b;
1585	}
1586
1587	/* apply table to input image (replacing colors by newly calculated ones) */
1588	if (ximage->bits_per_pixel == 32
1589	&& (ximage->depth == 24 || ximage->depth == 32)
1590	&& ximage->byte_order == host_byte_order)
1591	{
1592	uint32_t *p1, *pf, *p, *pl;
1593	p1 = (uint32_t *) ximage->data;
1594	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1595
1596	while (p1 < pf)
1597	{
1598	p = p1;
1599	pl = p1 + ximage->width;
1600	for (; p < pl; p++)
1601	{
1602	*p = lookup_r[(*p & 0xff0000) >> 16] |
1603	lookup_g[(*p & 0x00ff00) >> 8] |
1604	lookup_b[(*p & 0x0000ff)] |
1605	(*p & 0xff000000);
1606	}
1607	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1608	}
1609	}
1610	else
1611	{
1612	for (int y = 0; y < ximage->height; y++)
1613	for (int x = 0; x < ximage->width; x++)
1614	{
1615	unsigned long pixel = XGetPixel (ximage, x, y);
1616	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1617	lookup_g[(pixel & mask_g) >> sh_g] |
1618	lookup_b[(pixel & mask_b) >> sh_b];
1619	XPutPixel (ximage, x, y, pixel);
1620	}
1621	}
1622
1623	free (lookup);
1624	}
1625	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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