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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.160 by sf-exg, Thu Aug 11 08:37:17 2011 UTC vs.
Revision 1.240 by sf-exg, Mon Jun 11 13:23:01 2012 UTC

…		…
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], "scale"))
304	{
305	if (h == 0) h = windowScale;
306	if (w == 0) w = windowScale;
307
308	geom_flags |= WidthValue|HeightValue;
309	}
310	else if (!strcasecmp (arr[i], "root"))
311	{
312	new_flags |= BG_TILE|BG_ROOT_ALIGN;
313	w = h = noScale;
314	geom_flags |= WidthValue|HeightValue;
315	}
316	} /* done parsing ops */
317
318	rxvt_free_strsplit (arr);
319	}	242	{
320
321	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
322	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
323	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
324	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
325
326	if (new_flags != bg_flags)
327	{
328	bg_flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
329	changed = true;	248	changed = true;
330	}	249	}
331		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
332	return changed;	256	return changed;
333	}	257	}
334		258
335	void	259	void
336	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)
337	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
338	int target_width = szHint.width;	264	int parent_width = szHint.width;
339	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);
340		268
341	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)
342	{	273	{
343	float scale = (float)target_width / image_width;	274	float scale = (float)w / image_width;
344	min_it (scale, (float)target_height / image_height);	275	min_it (scale, (float)h / image_height);
345	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
346	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
347	}	278	}
348	else
349	{
350	w = h_scale * target_width / 100;
351	h = v_scale * target_height / 100;
352	}
353		279
354	if (!w) w = image_width;	280	if (!w) w = image_width;
355	if (!h) h = image_height;	281	if (!h) h = image_height;
356		282
357	if (bg_flags & BG_ROOT_ALIGN)	283	if (image.flags & IM_ROOT_ALIGN)
358	{	284	{
359	x = -target_x;	285	x = -parent_x;
360	y = -target_y;	286	y = -parent_y;
361	}	287	}
362	else	288	else
363	{	289	{
364	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
365	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
366	}
367
368	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
369	if (!(bg_flags & BG_TILE)
370	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
371	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
372	|| w > target_width || h > target_height)
373	bg_flags |= BG_IS_SIZE_SENSITIVE;
374	}
375
376	# ifdef HAVE_AFTERIMAGE
377	bool
378	rxvt_term::render_image (unsigned long tr_flags)
379	{
380	init_asv ();
381
382	ASImage *background = NULL;
383	ARGB32 background_tint = TINT_LEAVE_SAME;
384
385	# ifdef ENABLE_TRANSPARENCY
386	if (tr_flags)
387	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
388
389	if (tr_flags & BG_NEEDS_TINT)
390	{	292	}
391	ShadingInfo as_shade;	293	}
392	as_shade.shading = shade;
393		294
394	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
395	if (bg_flags & BG_TINT_SET)	296	rxvt_term::render_image (rxvt_image &image)
396	tint.get (c);	297	{
397	as_shade.tintColor.red = c.r;
398	as_shade.tintColor.green = c.g;
399	as_shade.tintColor.blue = c.b;
400
401	background_tint = shading2tint32 (&as_shade);
402	}
403
404	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
405	{
406	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
407	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
408	100, ASIMAGE_QUALITY_DEFAULT);
409	if (tmp)
410	{
411	destroy_asimage (&background);
412	background = tmp;
413	}
414	}
415	# endif
416
417	ASImage *result = 0;
418
419	int target_width = szHint.width;	298	int parent_width = szHint.width;
420	int target_height = szHint.height;	299	int parent_height = szHint.height;
421	int new_pmap_width = target_width;
422	int new_pmap_height = target_height;
423		300
424	int x = 0;	301	int x = 0;
425	int y = 0;	302	int y = 0;
426	int w = 0;	303	int w = 0;
427	int h = 0;	304	int h = 0;
428		305
429	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
430	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
431		307
432	if (!original_asim	308	if (!(image.flags & IM_ROOT_ALIGN)
433	|| (!(bg_flags & BG_ROOT_ALIGN)
434	&& (x >= target_width	309	&& (x >= parent_width
435	|| y >= target_height	310	|| y >= parent_height
436	|| (x + w <= 0)	311	|| x + w <= 0
437	|| (y + h <= 0))))	312	|| y + h <= 0))
438	{	313	return false;
439	if (background)
440	{
441	new_pmap_width = background->width;
442	new_pmap_height = background->height;
443	result = background;
444		314
445	if (background_tint != TINT_LEAVE_SAME)	315	rxvt_img *img = image.img->scale (w, h);
446	{	316
447	ASImage *tmp = tile_asimage (asv, background, 0, 0,	317	if (image.flags & IM_TILE)
448	target_width, target_height, background_tint,	318	img->repeat_mode (RepeatNormal);
449	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
450	if (tmp)
451	result = tmp;
452	}
453	}
454	else
455	new_pmap_width = new_pmap_height = 0;
456	}
457	else	319	else
458	{	320	img->repeat_mode (RepeatNone);
459	result = original_asim;	321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
460		322
461	if ((w != original_asim->width)	323	if (bg_flags & BG_IS_VALID)
462	|| (h != original_asim->height))
463	{
464	result = scale_asimage (asv, original_asim,
465	w, h,
466	background ? ASA_ASImage : ASA_XImage,
467	100, ASIMAGE_QUALITY_DEFAULT);
468	}
469
470	if (background == NULL)
471	{
472	if (bg_flags & BG_TILE)
473	{
474	/* if tiling - pixmap has to be sized exactly as the image,
475	but there is no need to make it bigger than the window! */
476	new_pmap_width = min (result->width, target_width);
477	new_pmap_height = min (result->height, target_height);
478
479	/* we also need to tile our image in both directions */
480	ASImage *tmp = tile_asimage (asv, result,
481	(int)result->width - x,
482	(int)result->height - y,
483	new_pmap_width,
484	new_pmap_height,
485	TINT_LEAVE_SAME, ASA_XImage,
486	100, ASIMAGE_QUALITY_DEFAULT);
487	if (tmp)
488	{
489	if (result != original_asim)
490	destroy_asimage (&result);
491
492	result = tmp;
493	}
494	}
495	}
496	else
497	{
498	/* if blending background and image - pixmap has to be sized same as target window */
499	ASImageLayer *layers = create_image_layers (2);
500
501	layers[0].im = background;
502	layers[0].clip_width = target_width;
503	layers[0].clip_height = target_height;
504	layers[0].tint = background_tint;
505	layers[1].im = result;
506
507	if (bg_flags & BG_TILE)
508	{
509	/* tile horizontally */
510	while (x > 0) x -= (int)result->width;
511	layers[1].dst_x = x;
512	layers[1].clip_width = result->width+target_width;
513	}
514	else
515	{
516	/* clip horizontally */
517	layers[1].dst_x = x;
518	layers[1].clip_width = result->width;
519	}
520
521	if (bg_flags & BG_TILE)
522	{
523	while (y > 0) y -= (int)result->height;
524	layers[1].dst_y = y;
525	layers[1].clip_height = result->height + target_height;
526	}
527	else
528	{
529	layers[1].dst_y = y;
530	layers[1].clip_height = result->height;
531	}
532
533	if (rs[Rs_blendtype])
534	{
535	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
536	if (layers[1].merge_scanlines == NULL)
537	layers[1].merge_scanlines = alphablend_scanlines;
538	}
539
540	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
541	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
542
543	if (tmp)
544	{
545	if (result != original_asim)
546	destroy_asimage (&result);
547
548	result = tmp;
549	}
550
551	free (layers);
552	}
553	}	324	{
554		325	double factor = image.alpha * 1. / 0xffff;
555	bool ret = false;	326	bg_img->blend (img, factor)->replace (img);
556
557	if (result)
558	{	327	}
559	XGCValues gcv;
560	GC gc;
561		328
562	/* create Pixmap */	329	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
563	if (bg_pixmap == None	330	img->convert_format (format, pix_colors [Color_bg])->replace (img);
564	|| bg_pmap_width != new_pmap_width
565	|| bg_pmap_height != new_pmap_height)
566	{
567	if (bg_pixmap)
568	XFreePixmap (dpy, bg_pixmap);
569	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
570	bg_pmap_width = new_pmap_width;
571	bg_pmap_height = new_pmap_height;
572	}
573	/* fill with background color (if result's not completely overlapping it) */
574	gcv.foreground = pix_colors[Color_bg];
575	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
576		331
577	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;	332	delete bg_img;
578	int dst_width = result->width, dst_height = result->height;	333	bg_img = img;
579	if (background == NULL)
580	{
581	if (!(bg_flags & BG_TILE))
582	{
583	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
584	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
585	}
586		334
587	if (dst_x > 0 || dst_y > 0
588	|| dst_x + dst_width < new_pmap_width
589	|| dst_y + dst_height < new_pmap_height)
590	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
591	}
592
593	/* put result on pixmap */
594	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
595	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
596
597	if (result != background && result != original_asim)
598	destroy_asimage (&result);
599
600	XFreeGC (dpy, gc);
601
602	ret = true;
603	}
604
605	if (background)
606	destroy_asimage (&background);
607
608	return ret;
609	}
610	# endif /* HAVE_AFTERIMAGE */
611
612	# ifdef HAVE_PIXBUF
613	bool
614	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
615	int src_x, int src_y, int dst_x, int dst_y,
616	unsigned int width, unsigned int height)
617	{
618	XImage *ximage;
619	char *data, *line;
620	int bytes_per_pixel;
621	int width_r, width_g, width_b;
622	int sh_r, sh_g, sh_b;
623	int rowstride;
624	int channels;
625	unsigned char *row;
626
627	if (visual->c_class != TrueColor)
628	return false;
629
630	if (depth == 24 || depth == 32)
631	bytes_per_pixel = 4;
632	else if (depth == 15 || depth == 16)
633	bytes_per_pixel = 2;
634	else
635	return false;
636
637	width_r = ecb_popcount32 (visual->red_mask);
638	width_g = ecb_popcount32 (visual->green_mask);
639	width_b = ecb_popcount32 (visual->blue_mask);
640
641	if (width_r > 8 || width_g > 8 || width_b > 8)
642	return false;
643
644	sh_r = ecb_ctz32 (visual->red_mask);
645	sh_g = ecb_ctz32 (visual->green_mask);
646	sh_b = ecb_ctz32 (visual->blue_mask);
647
648	if (width > INT_MAX / height / bytes_per_pixel)
649	return false;
650
651	data = (char *)malloc (width * height * bytes_per_pixel);
652	if (!data)
653	return false;
654
655	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
656	width, height, bytes_per_pixel * 8, 0);
657	if (!ximage)
658	{
659	free (data);
660	return false;
661	}
662
663	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
664
665	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
666	channels = gdk_pixbuf_get_n_channels (pixbuf);
667	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
668	line = data;
669
670	for (int y = 0; y < height; y++)
671	{
672	for (int x = 0; x < width; x++)
673	{
674	unsigned char *pixel = row + x * channels;
675	uint32_t value;
676
677	value = ((pixel[0] >> (8 - width_r)) << sh_r)
678	| ((pixel[1] >> (8 - width_g)) << sh_g)
679	| ((pixel[2] >> (8 - width_b)) << sh_b);
680
681	if (bytes_per_pixel == 4)
682	((uint32_t *)line)[x] = value;
683	else
684	((uint16_t *)line)[x] = value;
685	}
686
687	row += rowstride;
688	line += ximage->bytes_per_line;
689	}
690
691	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
692	XDestroyImage (ximage);
693	return true;	335	return true;
694	}	336	}
695		337
696	bool	338	rxvt_image::rxvt_image ()
697	rxvt_term::render_image (unsigned long tr_flags)
698	{	339	{
699	if (!pixbuf)	340	alpha = 0xffff;
700	return false;	341	flags = 0;
		342	h_scale =
		343	v_scale = defaultScale;
		344	h_align =
		345	v_align = defaultAlign;
701		346
702	if (tr_flags	347	img = 0;
703	&& !(bg_flags & BG_HAS_RENDER))
704	return false;
705
706	GdkPixbuf *result;
707
708	int image_width = gdk_pixbuf_get_width (pixbuf);
709	int image_height = gdk_pixbuf_get_height (pixbuf);
710
711	int target_width = szHint.width;
712	int target_height = szHint.height;
713	int new_pmap_width = target_width;
714	int new_pmap_height = target_height;
715
716	int x = 0;
717	int y = 0;
718	int w = 0;
719	int h = 0;
720
721	get_image_geometry (image_width, image_height, w, h, x, y);
722
723	if (!(bg_flags & BG_ROOT_ALIGN)
724	&& (x >= target_width
725	|| y >= target_height
726	|| (x + w <= 0)
727	|| (y + h <= 0)))
728	return false;
729
730	result = pixbuf;
731
732	if ((w != image_width)
733	|| (h != image_height))
734	{
735	result = gdk_pixbuf_scale_simple (pixbuf,
736	w, h,
737	GDK_INTERP_BILINEAR);
738	}
739
740	if (!result)
741	return false;
742
743	bool ret = false;
744
745	XGCValues gcv;
746	GC gc;
747	Pixmap root_pmap;
748
749	image_width = gdk_pixbuf_get_width (result);
750	image_height = gdk_pixbuf_get_height (result);
751
752	if (tr_flags)
753	{
754	root_pmap = bg_pixmap;
755	bg_pixmap = None;
756	}
757	else
758	{
759	if (bg_flags & BG_TILE)
760	{
761	new_pmap_width = min (image_width, target_width);
762	new_pmap_height = min (image_height, target_height);
763	}
764	}
765
766	if (bg_pixmap == None
767	|| bg_pmap_width != new_pmap_width
768	|| bg_pmap_height != new_pmap_height)
769	{
770	if (bg_pixmap)
771	XFreePixmap (dpy, bg_pixmap);
772	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
773	bg_pmap_width = new_pmap_width;
774	bg_pmap_height = new_pmap_height;
775	}
776
777	gcv.foreground = pix_colors[Color_bg];
778	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
779
780	if (gc)
781	{
782	if (bg_flags & BG_TILE)
783	{
784	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
785	pixbuf_to_pixmap (result, tile, gc,
786	0, 0,
787	0, 0,
788	image_width, image_height);
789
790	gcv.tile = tile;
791	gcv.fill_style = FillTiled;
792	gcv.ts_x_origin = x;
793	gcv.ts_y_origin = y;
794	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
795
796	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
797	XFreePixmap (dpy, tile);
798	}
799	else
800	{
801	int src_x, src_y, dst_x, dst_y;
802	int dst_width, dst_height;
803
804	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
805	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
806
807	if (dst_x > 0 || dst_y > 0
808	|| dst_x + dst_width < new_pmap_width
809	|| dst_y + dst_height < new_pmap_height)
810	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
811
812	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
813	pixbuf_to_pixmap (result, bg_pixmap, gc,
814	src_x, src_y,
815	dst_x, dst_y,
816	dst_width, dst_height);
817	}
818
819	#if XRENDER
820	if (tr_flags)
821	{
822	XRenderPictureAttributes pa;
823
824	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);
825	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
826
827	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
828	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
829
830	pa.repeat = True;
831	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
832	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
833	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
834	XFreePixmap (dpy, mask_pmap);
835
836	XRenderColor mask_c;
837
838	mask_c.alpha = 0x8000;
839	mask_c.red = 0;
840	mask_c.green = 0;
841	mask_c.blue = 0;
842	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
843	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
844
845	XRenderFreePicture (dpy, src);
846	XRenderFreePicture (dpy, dst);
847	XRenderFreePicture (dpy, mask);
848	}
849	#endif
850
851	XFreeGC (dpy, gc);
852
853	ret = true;
854	}
855
856	if (result != pixbuf)
857	g_object_unref (result);
858
859	if (tr_flags)
860	XFreePixmap (dpy, root_pmap);
861
862	return ret;
863	}	348	}
864	# endif /* HAVE_PIXBUF */
865		349
866	bool	350	bool
867	rxvt_term::bg_set_file (const char *file)	351	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
868	{	352	{
869	if (!file || !*file)	353	if (!file || !*file)
870	return false;	354	return false;
871		355
872	if (const char *p = strchr (file, ';'))	356	const char *p = strchr (file, ';');
		357
		358	if (p)
873	{	359	{
874	size_t len = p - file;	360	size_t len = p - file;
875	char *f = rxvt_temp_buf<char> (len + 1);	361	char *f = rxvt_temp_buf<char> (len + 1);
876	memcpy (f, file, len);	362	memcpy (f, file, len);
877	f[len] = '\0';	363	f[len] = '\0';
878	file = f;	364	file = f;
879	}	365	}
880		366
881	# ifdef HAVE_AFTERIMAGE	367	bool ret = set_file (s, file);
882	if (!asimman)	368	alpha = 0x8000;
883	asimman = create_generic_imageman (rs[Rs_path]);	369	if (ret)
884	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	370	set_geometry (p ? p + 1 : "");
885	if (image)
886	{
887	if (original_asim)
888	safe_asimage_destroy (original_asim);
889	original_asim = image;
890	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
891	return true;
892	}
893	# endif
894
895	# ifdef HAVE_PIXBUF
896	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
897	if (image)
898	{
899	if (pixbuf)
900	g_object_unref (pixbuf);
901	pixbuf = image;
902	bg_flags |= BG_IS_FROM_FILE;
903	return true;
904	}
905	# endif
906
907	return false;	371	return ret;
		372	}
		373
		374	bool
		375	rxvt_image::set_file (rxvt_screen *s, const char *file)
		376	{
		377	delete img;
		378	img = rxvt_img::new_from_file (s, file);
		379	return img != 0;
908	}	380	}
909		381
910	# endif /* BG_IMAGE_FROM_FILE */	382	# endif /* BG_IMAGE_FROM_FILE */
911		383
912	# ifdef ENABLE_TRANSPARENCY
913	bool	384	bool
914	rxvt_term::bg_set_transparent ()	385	image_effects::set_blur (const char *geom)
915	{
916	if (!(bg_flags & BG_IS_TRANSPARENT))
917	{
918	bg_flags |= BG_IS_TRANSPARENT;
919	return true;
920	}
921
922	return false;
923	}
924
925	bool
926	rxvt_term::bg_set_blur (const char *geom)
927	{	386	{
928	bool changed = false;	387	bool changed = false;
929	unsigned int hr, vr;	388	unsigned int hr, vr;
930	int junk;	389	int junk;
931	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	390	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
948	{	407	{
949	changed = true;	408	changed = true;
950	v_blurRadius = vr;	409	v_blurRadius = vr;
951	}	410	}
952		411
953	if (v_blurRadius == 0 && h_blurRadius == 0)
954	bg_flags &= ~BG_NEEDS_BLUR;
955	else
956	bg_flags |= BG_NEEDS_BLUR;
957
958	return changed;	412	return changed;
959	}	413	}
960		414
961	void
962	rxvt_term::set_tint_shade_flags ()
963	{
964	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
965	bool has_shade = shade != 100;
966
967	bg_flags &= ~BG_TINT_FLAGS;
968
969	if (bg_flags & BG_TINT_SET)
970	{
971	tint.get (c);
972	if (!has_shade
973	&& (c.r <= 0x00ff || c.r >= 0xff00)
974	&& (c.g <= 0x00ff || c.g >= 0xff00)
975	&& (c.b <= 0x00ff || c.b >= 0xff00))
976	bg_flags |= BG_TINT_BITAND;
977	}
978
979	if (has_shade || (bg_flags & BG_TINT_SET))
980	bg_flags |= BG_NEEDS_TINT;
981	}
982
983	bool	415	bool
984	rxvt_term::bg_set_tint (rxvt_color &new_tint)	416	image_effects::set_tint (const rxvt_color &new_tint)
985	{	417	{
986	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	418	if (!tint_set || tint != new_tint)
987	{	419	{
988	tint = new_tint;	420	tint = new_tint;
989	bg_flags |= BG_TINT_SET;	421	tint_set = true;
990	set_tint_shade_flags ();	422
991	return true;	423	return true;
992	}	424	}
993		425
994	return false;	426	return false;
995	}	427	}
996		428
997	bool	429	bool
998	rxvt_term::bg_set_shade (const char *shade_str)	430	image_effects::set_shade (const char *shade_str)
999	{	431	{
1000	int new_shade = (shade_str) ? atoi (shade_str) : 100;	432	int new_shade = atoi (shade_str);
1001		433
1002	clamp_it (new_shade, -100, 200);	434	clamp_it (new_shade, -100, 200);
1003	if (new_shade < 0)	435	if (new_shade < 0)
1004	new_shade = 200 - (100 + new_shade);	436	new_shade = 200 - (100 + new_shade);
1005		437
1006	if (new_shade != shade)	438	if (new_shade != shade)
1007	{	439	{
1008	shade = new_shade;	440	shade = new_shade;
1009	set_tint_shade_flags ();
1010	return true;	441	return true;
1011	}	442	}
1012		443
1013	return false;	444	return false;
1014	}	445	}
1015		446
1016	#if XRENDER	447	# if ENABLE_TRANSPARENCY
1017	static void
1018	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1019	{
1020	double sigma = radius / 2.0;
1021	double scale = sqrt (2.0 * M_PI) * sigma;
1022	double sum = 0.0;
1023
1024	for (int i = 0; i < width; i++)
1025	{
1026	double x = i - width / 2;
1027	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1028	sum += kernel[i];
1029	}
1030
1031	params[0] = XDoubleToFixed (width);
1032	params[1] = XDoubleToFixed (1);
1033
1034	for (int i = 0; i < width; i++)
1035	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1036	}
1037	#endif
1038
1039	bool
1040	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1041	{
1042	bool ret = false;
1043	#if XRENDER
1044	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1045	double *kernel = (double *)malloc (size * sizeof (double));
1046	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1047
1048	XRenderPictureAttributes pa;
1049	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1050
1051	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1052	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1053
1054	if (kernel && params)
1055	{
1056	if (h_blurRadius)
1057	{
1058	size = h_blurRadius * 2 + 1;
1059	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1060
1061	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1062	XRenderComposite (dpy,
1063	PictOpSrc,
1064	src,
1065	None,
1066	dst,
1067	0, 0,
1068	0, 0,
1069	0, 0,
1070	width, height);
1071	}
1072
1073	if (v_blurRadius)
1074	{
1075	size = v_blurRadius * 2 + 1;
1076	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1077	::swap (params[0], params[1]);
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	ret = true;
1092	}
1093
1094	free (kernel);
1095	free (params);
1096	XRenderFreePicture (dpy, src);
1097	XRenderFreePicture (dpy, dst);
1098	#endif
1099	return ret;
1100	}
1101
1102	bool
1103	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1104	{
1105	bool ret = false;
1106
1107	if (bg_flags & BG_TINT_BITAND)
1108	{
1109	XGCValues gcv;
1110	GC gc;
1111
1112	/* In this case we can tint image server-side getting significant
1113	* performance improvements, as we eliminate XImage transfer
1114	*/
1115	gcv.foreground = Pixel (tint);
1116	gcv.function = GXand;
1117	gcv.fill_style = FillSolid;
1118	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1119	if (gc)
1120	{
1121	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1122	ret = true;
1123	XFreeGC (dpy, gc);
1124	}
1125	}
1126	else
1127	{
1128	# if XRENDER
1129	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1130
1131	if (bg_flags & BG_TINT_SET)
1132	tint.get (c);
1133
1134	if (shade <= 100)
1135	{
1136	c.r = c.r * shade / 100;
1137	c.g = c.g * shade / 100;
1138	c.b = c.b * shade / 100;
1139	}
1140	else
1141	{
1142	c.r = c.r * (200 - shade) / 100;
1143	c.g = c.g * (200 - shade) / 100;
1144	c.b = c.b * (200 - shade) / 100;
1145	}
1146
1147	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1148	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1149	XRenderPictureAttributes pa;
1150
1151	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1152
1153	pa.repeat = True;
1154
1155	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1156	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1157	XFreePixmap (dpy, overlay_pmap);
1158
1159	pa.component_alpha = True;
1160	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1161	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1162	XFreePixmap (dpy, mask_pmap);
1163
1164	XRenderColor mask_c;
1165
1166	mask_c.alpha = 0xffff;
1167	mask_c.red =
1168	mask_c.green =
1169	mask_c.blue = 0;
1170	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1171
1172	mask_c.alpha = 0;
1173	mask_c.red = 0xffff - c.r;
1174	mask_c.green = 0xffff - c.g;
1175	mask_c.blue = 0xffff - c.b;
1176	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1177	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1178
1179	if (shade > 100)
1180	{
1181	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1182	mask_c.alpha = 0;
1183	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1184
1185	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1186	}
1187
1188	ret = true;
1189
1190	XRenderFreePicture (dpy, mask_pic);
1191	XRenderFreePicture (dpy, overlay_pic);
1192	XRenderFreePicture (dpy, back_pic);
1193	# endif
1194	}
1195
1196	return ret;
1197	}
1198
1199	/*	448	/*
1200	* Builds a pixmap of the same size as the terminal window that contains	449	* Builds a pixmap of the same size as the terminal window that contains
1201	* the tiled portion of the root pixmap that is supposed to be covered by	450	* the tiled portion of the root pixmap that is supposed to be covered by
1202	* our window.	451	* our window.
1203	*/	452	*/
1204	unsigned long	453	bool
1205	rxvt_term::make_transparency_pixmap ()	454	rxvt_term::render_root_image ()
1206	{	455	{
1207	unsigned long result = 0;
1208
1209	/* root dimensions may change from call to call - but Display structure should	456	/* root dimensions may change from call to call - but Display structure should
1210	* be always up-to-date, so let's use it :	457	* be always up-to-date, so let's use it :
1211	*/	458	*/
1212	int screen = display->screen;	459	int screen = display->screen;
1213	int root_depth = DefaultDepth (dpy, screen);
1214	int root_width = DisplayWidth (dpy, screen);	460	int root_width = DisplayWidth (dpy, screen);
1215	int root_height = DisplayHeight (dpy, screen);	461	int root_height = DisplayHeight (dpy, screen);
1216	unsigned int root_pmap_width, root_pmap_height;
1217	int window_width = szHint.width;	462	int parent_width = szHint.width;
1218	int window_height = szHint.height;	463	int parent_height = szHint.height;
1219	int sx, sy;	464	int sx, sy;
1220	XGCValues gcv;
1221	GC gc;
1222		465
1223	sx = target_x;	466	sx = parent_x;
1224	sy = target_y;	467	sy = parent_y;
		468
		469	if (!root_img)
		470	return false;
1225		471
1226	/* check if we are outside of the visible part of the virtual screen : */	472	/* check if we are outside of the visible part of the virtual screen : */
1227	if (sx + window_width <= 0 || sy + window_height <= 0	473	if (sx + parent_width <= 0 || sy + parent_height <= 0
1228	|| sx >= root_width || sy >= root_height)	474	|| sx >= root_width || sy >= root_height)
1229	return 0;	475	return 0;
1230		476
1231	// validate root pixmap and get its size	477	while (sx < 0) sx += root_img->w;
1232	if (root_pixmap != None)	478	while (sy < 0) sy += root_img->h;
1233	{
1234	Window wdummy;
1235	int idummy;
1236	unsigned int udummy;
1237		479
1238	allowedxerror = -1;	480	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1239		481
1240	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	482	if (root_effects.need_blur ())
1241	root_pixmap = None;	483	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1242		484
1243	allowedxerror = 0;	485	if (root_effects.need_tint ())
1244	}	486	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1245		487
1246	Pixmap recoded_root_pmap = root_pixmap;
1247
1248	if (root_pixmap != None && root_depth != depth)
1249	{
1250	#if XRENDER
1251	if (bg_flags & BG_HAS_RENDER)
1252	{
1253	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1254
1255	XRenderPictureAttributes pa;
1256
1257	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1258	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1259
1260	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	488	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1261	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	489	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1262		490
1263	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	491	delete bg_img;
		492	bg_img = img;
1264		493
1265	XRenderFreePicture (dpy, src);
1266	XRenderFreePicture (dpy, dst);
1267	}
1268	else
1269	#endif
1270	recoded_root_pmap = None;
1271	}
1272
1273	if (recoded_root_pmap == None)
1274	return 0;
1275
1276	if (bg_pixmap == None
1277	|| bg_pmap_width != window_width
1278	|| bg_pmap_height != window_height)
1279	{
1280	if (bg_pixmap)
1281	XFreePixmap (dpy, bg_pixmap);
1282	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1283	bg_pmap_width = window_width;
1284	bg_pmap_height = window_height;
1285	}
1286
1287	/* straightforward pixmap copy */
1288	while (sx < 0) sx += root_width;
1289	while (sy < 0) sy += root_height;
1290
1291	gcv.tile = recoded_root_pmap;
1292	gcv.fill_style = FillTiled;
1293	gcv.ts_x_origin = -sx;
1294	gcv.ts_y_origin = -sy;
1295	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1296
1297	if (gc)
1298	{
1299	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1300	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1301	XFreeGC (dpy, gc);
1302
1303	if (!(bg_flags & BG_CLIENT_RENDER))
1304	{
1305	if ((bg_flags & BG_NEEDS_BLUR)
1306	&& (bg_flags & BG_HAS_RENDER_CONV))
1307	{
1308	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1309	result &= ~BG_NEEDS_BLUR;
1310	}
1311	if ((bg_flags & BG_NEEDS_TINT)
1312	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1313	{
1314	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1315	result &= ~BG_NEEDS_TINT;
1316	}
1317	} /* server side rendering completed */
1318	}
1319
1320	if (recoded_root_pmap != root_pixmap)
1321	XFreePixmap (dpy, recoded_root_pmap);
1322
1323	return result;	494	return true;
1324	}	495	}
1325		496
1326	void	497	void
1327	rxvt_term::bg_set_root_pixmap ()	498	rxvt_term::bg_set_root_pixmap ()
1328	{	499	{
1329	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	500	delete root_img;
1330	if (new_root_pixmap == None)	501	root_img = rxvt_img::new_from_root (this);
1331	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1332
1333	root_pixmap = new_root_pixmap;
1334	}	502	}
1335	# endif /* ENABLE_TRANSPARENCY */	503	# endif /* ENABLE_TRANSPARENCY */
1336		504
1337	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	505	void
1338	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1339	# endif
1340
1341	bool
1342	rxvt_term::bg_render ()	506	rxvt_term::bg_render ()
1343	{	507	{
1344	unsigned long tr_flags = 0;	508	if (bg_flags & BG_INHIBIT_RENDER)
		509	return;
1345		510
1346	bg_invalidate ();	511	bg_invalidate ();
1347	# ifdef ENABLE_TRANSPARENCY	512	# if ENABLE_TRANSPARENCY
1348	if (bg_flags & BG_IS_TRANSPARENT)	513	if (bg_flags & BG_IS_TRANSPARENT)
1349	{	514	{
1350	/* we need to re-generate transparency pixmap in that case ! */	515	/* we need to re-generate transparency pixmap in that case ! */
1351	tr_flags = make_transparency_pixmap ();	516	if (render_root_image ())
1352	if (tr_flags == 0)
1353	return false;
1354	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1355	bg_flags |= BG_IS_VALID;	517	bg_flags |= BG_IS_VALID;
1356	}	518	}
1357	# endif	519	# endif
1358		520
1359	# ifdef BG_IMAGE_FROM_FILE	521	# if BG_IMAGE_FROM_FILE
1360	if ((bg_flags & BG_IS_FROM_FILE)	522	if (fimage.img)
1361	|| (tr_flags & BG_EFFECTS_FLAGS))
1362	{	523	{
1363	if (render_image (tr_flags))	524	if (render_image (fimage))
1364	bg_flags |= BG_IS_VALID;	525	bg_flags |= BG_IS_VALID;
1365	}	526	}
1366	# endif	527	# endif
1367		528
1368	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1369	XImage *result = NULL;
1370
1371	if (tr_flags && !(bg_flags & BG_IS_VALID))
1372	{
1373	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1374	}
1375
1376	if (result)
1377	{
1378	/* our own client-side tinting */
1379	if (tr_flags & BG_NEEDS_TINT)
1380	{
1381	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1382	if (bg_flags & BG_TINT_SET)
1383	tint.get (c);
1384	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1385	}
1386
1387	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1388
1389	if (gc)
1390	{
1391	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1392
1393	XFreeGC (dpy, gc);
1394	bg_flags |= BG_IS_VALID;
1395	}
1396
1397	XDestroyImage (result);
1398	}
1399	# endif
1400
1401	if (!(bg_flags & BG_IS_VALID))	529	if (!(bg_flags & BG_IS_VALID))
1402	{	530	{
1403	if (bg_pixmap != None)	531	delete bg_img;
1404	{	532	bg_img = 0;
1405	XFreePixmap (dpy, bg_pixmap);
1406	bg_pixmap = None;
1407	}
1408	}	533	}
1409		534
1410	scr_recolour (false);	535	scr_recolour (false);
1411	bg_flags |= BG_NEEDS_REFRESH;	536	bg_flags |= BG_NEEDS_REFRESH;
1412		537
1413	bg_valid_since = ev::now ();	538	bg_valid_since = ev::now ();
1414
1415	return true;
1416	}	539	}
1417		540
1418	void	541	void
1419	rxvt_term::bg_init ()	542	rxvt_term::bg_init ()
1420	{	543	{
1421	#ifdef ENABLE_TRANSPARENCY	544	#if BG_IMAGE_FROM_FILE
1422	shade = 100;	545	if (rs[Rs_backgroundPixmap])
		546	{
		547	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
		548	&& !bg_window_position_sensitive ())
		549	update_background ();
		550	}
1423	#endif	551	#endif
		552	}
1424		553
1425	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	554	void
1426	#if XRENDER	555	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1427	int major, minor;	556	{
1428	if (XRenderQueryVersion (dpy, &major, &minor))	557	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1429	bg_flags |= BG_HAS_RENDER;
1430	XFilters *filters = XRenderQueryFilters (dpy, vt);
1431	if (filters)
1432	{
1433	for (int i = 0; i < filters->nfilter; i++)
1434	if (!strcmp (filters->filter[i], FilterConvolution))
1435	bg_flags |= BG_HAS_RENDER_CONV;
1436		558
1437	XFree (filters);	559	if (tint_set)
		560	tint.get (c);
		561
		562	if (shade > 100)
1438	}	563	{
1439	#endif	564	c.r = c.r * (200 - shade) / 100;
		565	c.g = c.g * (200 - shade) / 100;
		566	c.b = c.b * (200 - shade) / 100;
		567	}
		568	else
		569	{
		570	c.r = c.r * shade / 100;
		571	c.g = c.g * shade / 100;
		572	c.b = c.b * shade / 100;
		573	}
		574
		575	img->contrast (c.r, c.g, c.b, c.a);
		576
		577	if (shade > 100)
		578	{
		579	c.a = 0xffff;
		580	c.r =
		581	c.g =
		582	c.b = 0xffff * (shade - 100) / 100;
		583	img->brightness (c.r, c.g, c.b, c.a);
		584	}
1440	}	585	}
1441		586
1442	#endif /* HAVE_BG_PIXMAP */	587	#endif /* HAVE_BG_PIXMAP */
1443
1444	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1445	/* taken from aterm-0.4.2 */
1446
1447	static void
1448	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1449	{
1450	int sh_r, sh_g, sh_b;
1451	uint32_t mask_r, mask_g, mask_b;
1452	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1453	rgba low;
1454	rgba high;
1455	int i;
1456	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1457
1458	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1459
1460	/* for convenience */
1461	mask_r = visual->red_mask;
1462	mask_g = visual->green_mask;
1463	mask_b = visual->blue_mask;
1464
1465	/* boring lookup table pre-initialization */
1466	switch (ximage->depth)
1467	{
1468	case 15:
1469	if ((mask_r != 0x7c00) ||
1470	(mask_g != 0x03e0) ||
1471	(mask_b != 0x001f))
1472	return;
1473	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1474	lookup_r = lookup;
1475	lookup_g = lookup+32;
1476	lookup_b = lookup+32+32;
1477	sh_r = 10;
1478	sh_g = 5;
1479	sh_b = 0;
1480	break;
1481	case 16:
1482	if ((mask_r != 0xf800) ||
1483	(mask_g != 0x07e0) ||
1484	(mask_b != 0x001f))
1485	return;
1486	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1487	lookup_r = lookup;
1488	lookup_g = lookup+32;
1489	lookup_b = lookup+32+64;
1490	sh_r = 11;
1491	sh_g = 5;
1492	sh_b = 0;
1493	break;
1494	case 24:
1495	if ((mask_r != 0xff0000) ||
1496	(mask_g != 0x00ff00) ||
1497	(mask_b != 0x0000ff))
1498	return;
1499	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1500	lookup_r = lookup;
1501	lookup_g = lookup+256;
1502	lookup_b = lookup+256+256;
1503	sh_r = 16;
1504	sh_g = 8;
1505	sh_b = 0;
1506	break;
1507	case 32:
1508	if ((mask_r != 0xff0000) ||
1509	(mask_g != 0x00ff00) ||
1510	(mask_b != 0x0000ff))
1511	return;
1512	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1513	lookup_r = lookup;
1514	lookup_g = lookup+256;
1515	lookup_b = lookup+256+256;
1516	sh_r = 16;
1517	sh_g = 8;
1518	sh_b = 0;
1519	break;
1520	default:
1521	return; /* we do not support this color depth */
1522	}
1523
1524	/* prepare limits for color transformation (each channel is handled separately) */
1525	if (shade > 100)
1526	{
1527	shade = 200 - shade;
1528
1529	high.r = c.r * shade / 100;
1530	high.g = c.g * shade / 100;
1531	high.b = c.b * shade / 100;
1532
1533	low.r = 65535 * (100 - shade) / 100;
1534	low.g = 65535 * (100 - shade) / 100;
1535	low.b = 65535 * (100 - shade) / 100;
1536	}
1537	else
1538	{
1539	high.r = c.r * shade / 100;
1540	high.g = c.g * shade / 100;
1541	high.b = c.b * shade / 100;
1542
1543	low.r = low.g = low.b = 0;
1544	}
1545
1546	/* fill our lookup tables */
1547	for (i = 0; i <= mask_r>>sh_r; i++)
1548	{
1549	uint32_t tmp;
1550	tmp = i * high.r;
1551	tmp += (mask_r>>sh_r) * low.r;
1552	lookup_r[i] = (tmp/65535)<<sh_r;
1553	}
1554	for (i = 0; i <= mask_g>>sh_g; i++)
1555	{
1556	uint32_t tmp;
1557	tmp = i * high.g;
1558	tmp += (mask_g>>sh_g) * low.g;
1559	lookup_g[i] = (tmp/65535)<<sh_g;
1560	}
1561	for (i = 0; i <= mask_b>>sh_b; i++)
1562	{
1563	uint32_t tmp;
1564	tmp = i * high.b;
1565	tmp += (mask_b>>sh_b) * low.b;
1566	lookup_b[i] = (tmp/65535)<<sh_b;
1567	}
1568
1569	/* apply table to input image (replacing colors by newly calculated ones) */
1570	if (ximage->bits_per_pixel == 32
1571	&& (ximage->depth == 24 || ximage->depth == 32)
1572	&& ximage->byte_order == host_byte_order)
1573	{
1574	uint32_t *p1, *pf, *p, *pl;
1575	p1 = (uint32_t *) ximage->data;
1576	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1577
1578	while (p1 < pf)
1579	{
1580	p = p1;
1581	pl = p1 + ximage->width;
1582	for (; p < pl; p++)
1583	{
1584	*p = lookup_r[(*p & 0xff0000) >> 16] |
1585	lookup_g[(*p & 0x00ff00) >> 8] |
1586	lookup_b[(*p & 0x0000ff)] |
1587	(*p & 0xff000000);
1588	}
1589	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1590	}
1591	}
1592	else
1593	{
1594	for (int y = 0; y < ximage->height; y++)
1595	for (int x = 0; x < ximage->width; x++)
1596	{
1597	unsigned long pixel = XGetPixel (ximage, x, y);
1598	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1599	lookup_g[(pixel & mask_g) >> sh_g] |
1600	lookup_b[(pixel & mask_b) >> sh_b];
1601	XPutPixel (ximage, x, y, pixel);
1602	}
1603	}
1604
1605	free (lookup);
1606	}
1607	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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