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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.147 by root, Mon Feb 21 07:40:59 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	* tile Tile image. Scaling/position modifiers above will affect
52	* the tile size and origin.
53	* propscale When scaling, scale proportionally. That is, maintain the
54	* proper aspect ratio for the image. Any portion of the
55	* background not covered by the image is filled with the
56	* current background color.
57	* hscale Scale horizontally, tile vertically ?
58	* vscale Tile horizontally, scale vertically ?
59	* scale Scale both up and down
60	* auto Same as 100x100+50+50
61	*/
62
63	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
64	void	30	void
65	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
66	{	32	{
67	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
68	if (original_asim)	34	delete root_img;
69	safe_asimage_destroy (original_asim);	35	root_img = 0;
70	if (asv)
71	destroy_asvisual (asv, 0);
72	if (asimman)
73	destroy_image_manager (asimman, 0);
74	#endif	36	# endif
75		37
76	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
77	if (pixbuf)	39	fimage.destroy ();
78	g_object_unref (pixbuf);
79	#endif	40	# endif
80		41
81	if (bg_pixmap)	42	delete bg_img;
82	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
83	}
84
85	bool
86	rxvt_term::bg_set_position (int x, int y)
87	{
88
89	if (target_x != x
90	|| target_y != y)
91	{
92	target_x = x;
93	target_y = y;
94	return true;
95	}
96	return false;
97	}	44	}
98		45
99	bool	46	bool
100	rxvt_term::bg_window_size_sensitive ()	47	rxvt_term::bg_window_size_sensitive ()
101	{	48	{
102	# ifdef ENABLE_TRANSPARENCY	49	# if ENABLE_TRANSPARENCY
103	if (bg_flags & BG_IS_TRANSPARENT)	50	if (bg_flags & BG_IS_TRANSPARENT)
104	return true;	51	return true;
105	# endif	52	# endif
106		53
107	# ifdef BG_IMAGE_FROM_FILE	54	# if BG_IMAGE_FROM_FILE
108	if (bg_flags & BG_IS_FROM_FILE)	55	if (fimage.img)
109	{	56	{
110	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)
111	return true;	60	return true;
112	}	61	}
113	# endif	62	# endif
114		63
115	return false;	64	return false;
116	}	65	}
117		66
118	bool	67	bool
119	rxvt_term::bg_window_position_sensitive ()	68	rxvt_term::bg_window_position_sensitive ()
120	{	69	{
121	# ifdef ENABLE_TRANSPARENCY	70	# if ENABLE_TRANSPARENCY
122	if (bg_flags & BG_IS_TRANSPARENT)	71	if (bg_flags & BG_IS_TRANSPARENT)
123	return true;	72	return true;
124	# endif	73	# endif
125		74
126	# ifdef BG_IMAGE_FROM_FILE	75	# if BG_IMAGE_FROM_FILE
127	if (bg_flags & BG_IS_FROM_FILE)	76	if (fimage.img)
128	{	77	{
129	if (bg_flags & BG_ROOT_ALIGN)	78	if (fimage.flags & IM_ROOT_ALIGN)
130	return true;	79	return true;
131	}	80	}
132	# endif	81	# endif
133		82
134	return false;	83	return false;
135	}	84	}
136		85
137	# ifdef BG_IMAGE_FROM_FILE	86	# if BG_IMAGE_FROM_FILE
138	static inline bool
139	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
140	{
141	if (geom_flags & flag)
142	{
143	if (new_value > 1000)
144	new_value = 1000;
145	if (new_value != scale)
146	{
147	scale = new_value;
148	return true;
149	}
150	}
151	return false;
152	}
153
154	static inline bool
155	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
156	{
157	if (geom_flags & flag)
158	{
159	if (new_value < -100)
160	new_value = -100;
161	else if (new_value > 200)
162	new_value = 200;
163	if (new_value != align)
164	{
165	align = new_value;
166	return true;
167	}
168	}
169	return false;
170	}
171
172	static inline int	87	static inline int
173	make_align_position (int align, int window_size, int image_size)	88	make_align_position (int align, int window_size, int image_size)
174	{	89	{
175	int diff = window_size - image_size;
176	int smaller = min (image_size, window_size);
177
178	if (align >= 0 && align <= 100)	90	if (align >= 0 && align <= 100)
179	return diff * align / 100;	91	return lerp (0, window_size - image_size, align);
180	else if (align > 100 && align <= 200)	92	else if (align > 100)
181	return ((align - 100) * smaller / 100) + window_size - smaller;	93	return lerp (window_size - image_size, window_size, align - 100);
182	else if (align >= -100 && align < 0)	94	else
183	return ((align + 100) * smaller / 100) - image_size;	95	return lerp (-image_size, 0, align + 100);
184	return 0;
185	}	96	}
186		97
187	static inline int	98	static void
188	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)
189	{	100	{
190	int src_pos = 0;	101	if (!strcasecmp (style, "tiled"))
191	dst_pos = pos;
192	dst_size = size;
193	if (pos < 0)
194	{
195	src_pos = -pos;
196	dst_pos = 0;
197	dst_size += pos;
198	}	102	{
199		103	flags = IM_TILE;
200	if (dst_pos + dst_size > target_size)	104	w = h = noScale;
201	dst_size = target_size - dst_pos;	105	x = y = 0;
202	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	}
203	}	131	}
204		132
205	bool	133	bool
206	rxvt_term::bg_set_geometry (const char *geom, bool update)	134	rxvt_image::set_geometry (const char *geom, bool update)
207	{	135	{
208	bool changed = false;	136	bool changed = false;
209	int geom_flags = 0;	137	int geom_flags = 0;
210	int x = 0, y = 0;	138	int x = h_align;
		139	int y = v_align;
211	unsigned int w = 0, h = 0;	140	unsigned int w = h_scale;
212	unsigned int n;	141	unsigned int h = v_scale;
213	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	142	uint8_t new_flags = 0;
214	const char *ops;
215		143
216	if (geom == NULL)	144	if (geom == NULL)
217	return false;	145	return false;
218		146
219	char str[256];	147	if (geom[0])
220
221	ops = strchr (geom, ':');
222	if (ops == NULL)
223	n = strlen (geom);
224	else
225	n = ops - geom;
226
227	if (n >= sizeof (str))
228	return false;
229
230	memcpy (str, geom, n);
231	str[n] = '\0';
232	rxvt_strtrim (str);
233
234	if (str[0])
235	{	148	{
236	/* 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
237	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	211	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
238	} /* done parsing geometry string */	212	} /* done parsing ops */
		213
		214	rxvt_free_strsplit (arr);
		215	}
		216
		217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
239		218
240	if (!update)	219	if (!update)
241	{	220	{
242	if (!(geom_flags & XValue))	221	if (!(geom_flags & XValue))
243	x = y = defaultAlign;	222	x = y = defaultAlign;
…		…
248	w = h = defaultScale;	227	w = h = defaultScale;
249	else if (!(geom_flags & HeightValue))	228	else if (!(geom_flags & HeightValue))
250	h = w;	229	h = w;
251	else if (!(geom_flags & WidthValue))	230	else if (!(geom_flags & WidthValue))
252	w = h;	231	w = h;
253
254	geom_flags |= WidthValue|HeightValue|XValue|YValue;
255	}
256
257	if (ops)
258	{	232	}
259	char **arr = rxvt_strsplit (':', ops + 1);
260		233
261	for (int i = 0; arr[i]; i++)	234	clamp_it (x, -100, 200);
262	{	235	clamp_it (y, -100, 200);
263	if (!strcasecmp (arr[i], "tile"))
264	{
265	w = h = noScale;
266	geom_flags |= WidthValue|HeightValue;
267	}
268	else if (!strcasecmp (arr[i], "propscale"))
269	{
270	new_flags |= BG_PROP_SCALE;
271	}
272	else if (!strcasecmp (arr[i], "hscale"))
273	{
274	if (w == 0) w = windowScale;
275		236
276	h = noScale;	237	if (flags != new_flags
277	geom_flags |= WidthValue|HeightValue;	238	|| h_scale != w
278	}	239	|| v_scale != h
279	else if (!strcasecmp (arr[i], "vscale"))	240	|| h_align != x
280	{	241	|| v_align != y)
281	if (h == 0) h = windowScale;
282
283	w = noScale;
284	geom_flags |= WidthValue|HeightValue;
285	}
286	else if (!strcasecmp (arr[i], "scale"))
287	{
288	if (h == 0) h = windowScale;
289	if (w == 0) w = windowScale;
290
291	geom_flags |= WidthValue|HeightValue;
292	}
293	else if (!strcasecmp (arr[i], "auto"))
294	{
295	w = h = windowScale;
296	x = y = centerAlign;
297	geom_flags |= WidthValue|HeightValue|XValue|YValue;
298	}
299	else if (!strcasecmp (arr[i], "root"))
300	{
301	new_flags |= BG_ROOT_ALIGN;
302	w = h = noScale;
303	geom_flags |= WidthValue|HeightValue;
304	}
305	} /* done parsing ops */
306
307	rxvt_free_strsplit (arr);
308	}	242	{
309
310	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
311	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
312	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
313	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
314
315	if (new_flags != bg_flags)
316	{
317	bg_flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
318	changed = true;	248	changed = true;
319	}	249	}
320		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
321	return changed;	256	return changed;
322	}	257	}
323		258
324	void	259	void
325	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)
326	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
327	int target_width = szHint.width;	264	int parent_width = szHint.width;
328	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);
329		268
330	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)
331	{	273	{
332	float scale = (float)target_width / image_width;	274	float scale = (float)w / image_width;
333	min_it (scale, (float)target_height / image_height);	275	min_it (scale, (float)h / image_height);
334	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
335	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
336	}	278	}
337	else
338	{
339	w = h_scale * target_width / 100;
340	h = v_scale * target_height / 100;
341	}
342		279
343	if (!w) w = image_width;	280	if (!w) w = image_width;
344	if (!h) h = image_height;	281	if (!h) h = image_height;
345		282
346	if (bg_flags & BG_ROOT_ALIGN)	283	if (image.flags & IM_ROOT_ALIGN)
347	{	284	{
348	x = -target_x;	285	x = -parent_x;
349	y = -target_y;	286	y = -parent_y;
350	}	287	}
351	else	288	else
352	{	289	{
353	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
354	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
355	}
356
357	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
358	if ((bg_flags & BG_PROP_SCALE) || h_scale || v_scale
359	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
360	|| w > target_width || h > target_height)
361	bg_flags |= BG_IS_SIZE_SENSITIVE;
362	}
363
364	# ifdef HAVE_AFTERIMAGE
365	bool
366	rxvt_term::render_image (unsigned long tr_flags)
367	{
368	init_asv ();
369
370	ASImage *background = NULL;
371	ARGB32 background_tint = TINT_LEAVE_SAME;
372
373	# ifdef ENABLE_TRANSPARENCY
374	if (tr_flags)
375	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
376
377	if (tr_flags & BG_NEEDS_TINT)
378	{	292	}
379	ShadingInfo as_shade;	293	}
380	as_shade.shading = shade;
381		294
382	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
383	if (bg_flags & BG_TINT_SET)	296	rxvt_term::render_image (rxvt_image &image)
384	tint.get (c);	297	{
385	as_shade.tintColor.red = c.r;
386	as_shade.tintColor.green = c.g;
387	as_shade.tintColor.blue = c.b;
388
389	background_tint = shading2tint32 (&as_shade);
390	}
391
392	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
393	{
394	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
395	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
396	100, ASIMAGE_QUALITY_DEFAULT);
397	if (tmp)
398	{
399	destroy_asimage (&background);
400	background = tmp;
401	}
402	}
403	# endif
404
405	ASImage *result = 0;
406
407	int target_width = szHint.width;	298	int parent_width = szHint.width;
408	int target_height = szHint.height;	299	int parent_height = szHint.height;
409	int new_pmap_width = target_width;
410	int new_pmap_height = target_height;
411		300
412	int x = 0;	301	int x = 0;
413	int y = 0;	302	int y = 0;
414	int w = 0;	303	int w = 0;
415	int h = 0;	304	int h = 0;
416		305
417	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
418	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
419		307
420	if (!original_asim	308	if (!(image.flags & IM_ROOT_ALIGN)
421	|| (!(bg_flags & BG_ROOT_ALIGN)
422	&& (x >= target_width	309	&& (x >= parent_width
423	|| y >= target_height	310	|| y >= parent_height
424	|| (x + w <= 0)	311	|| x + w <= 0
425	|| (y + h <= 0))))	312	|| y + h <= 0))
426	{	313	return false;
427	if (background)
428	{
429	new_pmap_width = background->width;
430	new_pmap_height = background->height;
431	result = background;
432		314
433	if (background_tint != TINT_LEAVE_SAME)	315	rxvt_img *img = image.img->scale (w, h);
434	{	316
435	ASImage *tmp = tile_asimage (asv, background, 0, 0,	317	if (image.flags & IM_TILE)
436	target_width, target_height, background_tint,	318	img->repeat_mode (RepeatNormal);
437	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
438	if (tmp)
439	result = tmp;
440	}
441	}
442	else
443	new_pmap_width = new_pmap_height = 0;
444	}
445	else	319	else
446	{	320	img->repeat_mode (RepeatNone);
447	result = original_asim;	321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
448		322
449	if ((w != original_asim->width)	323	if (bg_flags & BG_IS_VALID)
450	|| (h != original_asim->height))	324	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
451	{
452	result = scale_asimage (asv, original_asim,
453	w, h,
454	background ? ASA_ASImage : ASA_XImage,
455	100, ASIMAGE_QUALITY_DEFAULT);
456	}
457		325
458	if (background == NULL)	326	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
459	{	327	img->convert_format (format, pix_colors [Color_bg])->replace (img);
460	if (h_scale == 0 || v_scale == 0)
461	{
462	/* if tiling - pixmap has to be sized exactly as the image,
463	but there is no need to make it bigger than the window! */
464	new_pmap_width = min (result->width, target_width);
465	new_pmap_height = min (result->height, target_height);
466		328
467	/* we also need to tile our image in both directions */	329	delete bg_img;
468	ASImage *tmp = tile_asimage (asv, result,	330	bg_img = img;
469	(int)result->width - x,
470	(int)result->height - y,
471	new_pmap_width,
472	new_pmap_height,
473	TINT_LEAVE_SAME, ASA_XImage,
474	100, ASIMAGE_QUALITY_DEFAULT);
475	if (tmp)
476	{
477	if (result != original_asim)
478	destroy_asimage (&result);
479		331
480	result = tmp;
481	}
482	}
483	}
484	else
485	{
486	/* if blending background and image - pixmap has to be sized same as target window */
487	ASImageLayer *layers = create_image_layers (2);
488
489	layers[0].im = background;
490	layers[0].clip_width = target_width;
491	layers[0].clip_height = target_height;
492	layers[0].tint = background_tint;
493	layers[1].im = result;
494
495	if (h_scale == 0 || v_scale == 0)
496	{
497	/* tile horizontally */
498	while (x > 0) x -= (int)result->width;
499	layers[1].dst_x = x;
500	layers[1].clip_width = result->width+target_width;
501	}
502	else
503	{
504	/* clip horizontally */
505	layers[1].dst_x = x;
506	layers[1].clip_width = result->width;
507	}
508
509	if (h_scale == 0 || v_scale == 0)
510	{
511	while (y > 0) y -= (int)result->height;
512	layers[1].dst_y = y;
513	layers[1].clip_height = result->height + target_height;
514	}
515	else
516	{
517	layers[1].dst_y = y;
518	layers[1].clip_height = result->height;
519	}
520
521	if (rs[Rs_blendtype])
522	{
523	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
524	if (layers[1].merge_scanlines == NULL)
525	layers[1].merge_scanlines = alphablend_scanlines;
526	}
527
528	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
529	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
530
531	if (tmp)
532	{
533	if (result != original_asim)
534	destroy_asimage (&result);
535
536	result = tmp;
537	}
538
539	free (layers);
540	}
541	}
542
543	bool ret = false;
544
545	if (result)
546	{
547	XGCValues gcv;
548	GC gc;
549
550	/* create Pixmap */
551	if (bg_pixmap == None
552	|| bg_pmap_width != new_pmap_width
553	|| bg_pmap_height != new_pmap_height)
554	{
555	if (bg_pixmap)
556	XFreePixmap (dpy, bg_pixmap);
557	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
558	bg_pmap_width = new_pmap_width;
559	bg_pmap_height = new_pmap_height;
560	}
561	/* fill with background color (if result's not completely overlapping it) */
562	gcv.foreground = pix_colors[Color_bg];
563	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
564
565	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
566	int dst_width = result->width, dst_height = result->height;
567	if (background == NULL)
568	{
569	if (!(h_scale == 0 || v_scale == 0))
570	{
571	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
572	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
573	}
574
575	if (dst_x > 0 || dst_y > 0
576	|| dst_x + dst_width < new_pmap_width
577	|| dst_y + dst_height < new_pmap_height)
578	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
579	}
580
581	/* put result on pixmap */
582	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
583	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
584
585	if (result != background && result != original_asim)
586	destroy_asimage (&result);
587
588	XFreeGC (dpy, gc);
589
590	ret = true;
591	}
592
593	if (background)
594	destroy_asimage (&background);
595
596	return ret;
597	}
598	# endif /* HAVE_AFTERIMAGE */
599
600	# ifdef HAVE_PIXBUF
601	bool
602	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
603	int src_x, int src_y, int dst_x, int dst_y,
604	unsigned int width, unsigned int height)
605	{
606	XImage *ximage;
607	char *data, *line;
608	int bytes_per_pixel;
609	int width_r, width_g, width_b;
610	int sh_r, sh_g, sh_b;
611	int rowstride;
612	int channels;
613	unsigned char *row;
614
615	if (visual->c_class != TrueColor)
616	return false;
617
618	if (depth == 24 || depth == 32)
619	bytes_per_pixel = 4;
620	else if (depth == 15 || depth == 16)
621	bytes_per_pixel = 2;
622	else
623	return false;
624
625	width_r = rxvt_popcount (visual->red_mask);
626	width_g = rxvt_popcount (visual->green_mask);
627	width_b = rxvt_popcount (visual->blue_mask);
628
629	if (width_r > 8 || width_g > 8 || width_b > 8)
630	return false;
631
632	sh_r = rxvt_ctz (visual->red_mask);
633	sh_g = rxvt_ctz (visual->green_mask);
634	sh_b = rxvt_ctz (visual->blue_mask);
635
636	if (width > INT_MAX / height / bytes_per_pixel)
637	return false;
638
639	data = (char *)malloc (width * height * bytes_per_pixel);
640	if (!data)
641	return false;
642
643	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
644	width, height, bytes_per_pixel * 8, 0);
645	if (!ximage)
646	{
647	free (data);
648	return false;
649	}
650
651	ximage->byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
652
653	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
654	channels = gdk_pixbuf_get_n_channels (pixbuf);
655	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
656	line = data;
657
658	for (int y = 0; y < height; y++)
659	{
660	for (int x = 0; x < width; x++)
661	{
662	unsigned char *pixel = row + x * channels;
663	uint32_t value;
664
665	value = ((pixel[0] >> (8 - width_r)) << sh_r)
666	| ((pixel[1] >> (8 - width_g)) << sh_g)
667	| ((pixel[2] >> (8 - width_b)) << sh_b);
668
669	if (bytes_per_pixel == 4)
670	((uint32_t *)line)[x] = value;
671	else
672	((uint16_t *)line)[x] = value;
673	}
674
675	row += rowstride;
676	line += ximage->bytes_per_line;
677	}
678
679	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
680	XDestroyImage (ximage);
681	return true;	332	return true;
682	}	333	}
683		334
684	bool	335	rxvt_image::rxvt_image ()
685	rxvt_term::render_image (unsigned long tr_flags)
686	{	336	{
687	if (!pixbuf)	337	alpha = 0xffff;
688	return false;	338	flags = 0;
		339	h_scale =
		340	v_scale = defaultScale;
		341	h_align =
		342	v_align = defaultAlign;
689		343
690	if (tr_flags	344	img = 0;
691	&& !(bg_flags & BG_HAS_RENDER))
692	return false;
693
694	GdkPixbuf *result;
695
696	int image_width = gdk_pixbuf_get_width (pixbuf);
697	int image_height = gdk_pixbuf_get_height (pixbuf);
698
699	int target_width = szHint.width;
700	int target_height = szHint.height;
701	int new_pmap_width = target_width;
702	int new_pmap_height = target_height;
703
704	int x = 0;
705	int y = 0;
706	int w = 0;
707	int h = 0;
708
709	get_image_geometry (image_width, image_height, w, h, x, y);
710
711	if (!(bg_flags & BG_ROOT_ALIGN)
712	&& (x >= target_width
713	|| y >= target_height
714	|| (x + w <= 0)
715	|| (y + h <= 0)))
716	return false;
717
718	result = pixbuf;
719
720	if ((w != image_width)
721	|| (h != image_height))
722	{
723	result = gdk_pixbuf_scale_simple (pixbuf,
724	w, h,
725	GDK_INTERP_BILINEAR);
726	}
727
728	bool ret = false;
729
730	if (result)
731	{
732	XGCValues gcv;
733	GC gc;
734	Pixmap root_pmap;
735
736	image_width = gdk_pixbuf_get_width (result);
737	image_height = gdk_pixbuf_get_height (result);
738
739	if (tr_flags)
740	{
741	root_pmap = bg_pixmap;
742	bg_pixmap = None;
743	}
744	else
745	{
746	if (h_scale == 0 || v_scale == 0)
747	{
748	new_pmap_width = min (image_width, target_width);
749	new_pmap_height = min (image_height, target_height);
750	}
751	}
752
753	if (bg_pixmap == None
754	|| bg_pmap_width != new_pmap_width
755	|| bg_pmap_height != new_pmap_height)
756	{
757	if (bg_pixmap)
758	XFreePixmap (dpy, bg_pixmap);
759	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
760	bg_pmap_width = new_pmap_width;
761	bg_pmap_height = new_pmap_height;
762	}
763
764	gcv.foreground = pix_colors[Color_bg];
765	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
766
767	if (h_scale == 0 || v_scale == 0)
768	{
769	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
770	pixbuf_to_pixmap (result, tile, gc,
771	0, 0,
772	0, 0,
773	image_width, image_height);
774
775	gcv.tile = tile;
776	gcv.fill_style = FillTiled;
777	gcv.ts_x_origin = x;
778	gcv.ts_y_origin = y;
779	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
780
781	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
782	XFreePixmap (dpy, tile);
783	}
784	else
785	{
786	int src_x, src_y, dst_x, dst_y;
787	int dst_width, dst_height;
788
789	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
790	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
791
792	if (dst_x > 0 || dst_y > 0
793	|| dst_x + dst_width < new_pmap_width
794	|| dst_y + dst_height < new_pmap_height)
795	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
796
797	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
798	pixbuf_to_pixmap (result, bg_pixmap, gc,
799	src_x, src_y,
800	dst_x, dst_y,
801	dst_width, dst_height);
802	}
803
804	#if XRENDER
805	if (tr_flags)
806	{
807	XRenderPictureAttributes pa;
808
809	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);
810	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
811
812	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
813	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
814
815	pa.repeat = True;
816	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
817	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
818	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
819	XFreePixmap (dpy, mask_pmap);
820
821	if (src && dst && mask)
822	{
823	XRenderColor mask_c;
824
825	mask_c.alpha = 0x8000;
826	mask_c.red = 0;
827	mask_c.green = 0;
828	mask_c.blue = 0;
829	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
830	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
831	}
832
833	XRenderFreePicture (dpy, src);
834	XRenderFreePicture (dpy, dst);
835	XRenderFreePicture (dpy, mask);
836
837	XFreePixmap (dpy, root_pmap);
838	}
839	#endif
840
841	if (result != pixbuf)
842	g_object_unref (result);
843
844	XFreeGC (dpy, gc);
845
846	ret = true;
847	}
848
849	return ret;
850	}	345	}
851	# endif /* HAVE_PIXBUF */
852		346
853	bool	347	void
854	rxvt_term::bg_set_file (const char *file)	348	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
855	{	349	{
856	if (!file || !*file)	350	if (!file || !*file)
857	return false;	351	return;
858		352
859	if (const char *p = strchr (file, ';'))	353	const char *p = strchr (file, ';');
		354
		355	if (p)
860	{	356	{
861	size_t len = p - file;	357	size_t len = p - file;
862	char *f = rxvt_temp_buf<char> (len + 1);	358	char *f = rxvt_temp_buf<char> (len + 1);
863	memcpy (f, file, len);	359	memcpy (f, file, len);
864	f[len] = '\0';	360	f[len] = '\0';
865	file = f;	361	file = f;
866	}	362	}
867		363
868	# ifdef HAVE_AFTERIMAGE	364	set_file (s, file);
869	if (!asimman)	365	alpha = 0x8000;
870	asimman = create_generic_imageman (rs[Rs_path]);	366	set_geometry (p ? p + 1 : "");
871	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	367	}
872	if (image)
873	{
874	if (original_asim)
875	safe_asimage_destroy (original_asim);
876	original_asim = image;
877	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
878	return true;
879	}
880	# endif
881		368
882	# ifdef HAVE_PIXBUF	369	void
883	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	370	rxvt_image::set_file (rxvt_screen *s, const char *file)
884	if (image)	371	{
885	{	372	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
886	if (pixbuf)	373	delete img;
887	g_object_unref (pixbuf);	374	img = img2;
888	pixbuf = image;
889	bg_flags |= BG_IS_FROM_FILE;
890	return true;
891	}
892	# endif
893
894	return false;
895	}	375	}
896		376
897	# endif /* BG_IMAGE_FROM_FILE */	377	# endif /* BG_IMAGE_FROM_FILE */
898		378
899	# ifdef ENABLE_TRANSPARENCY
900	bool	379	bool
901	rxvt_term::bg_set_transparent ()	380	image_effects::set_blur (const char *geom)
902	{
903	if (!(bg_flags & BG_IS_TRANSPARENT))
904	{
905	bg_flags |= BG_IS_TRANSPARENT;
906	return true;
907	}
908
909	return false;
910	}
911
912	bool
913	rxvt_term::bg_set_blur (const char *geom)
914	{	381	{
915	bool changed = false;	382	bool changed = false;
916	unsigned int hr, vr;	383	unsigned int hr, vr;
917	int junk;	384	int junk;
918	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	385	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
935	{	402	{
936	changed = true;	403	changed = true;
937	v_blurRadius = vr;	404	v_blurRadius = vr;
938	}	405	}
939		406
940	if (v_blurRadius == 0 && h_blurRadius == 0)
941	bg_flags &= ~BG_NEEDS_BLUR;
942	else
943	bg_flags |= BG_NEEDS_BLUR;
944
945	return changed;	407	return changed;
946	}	408	}
947		409
948	void
949	rxvt_term::set_tint_shade_flags ()
950	{
951	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
952	bool has_shade = shade != 100;
953
954	bg_flags &= ~BG_TINT_FLAGS;
955
956	if (bg_flags & BG_TINT_SET)
957	{
958	tint.get (c);
959	if (!has_shade
960	&& (c.r <= 0x00ff || c.r >= 0xff00)
961	&& (c.g <= 0x00ff || c.g >= 0xff00)
962	&& (c.b <= 0x00ff || c.b >= 0xff00))
963	bg_flags |= BG_TINT_BITAND;
964	}
965
966	if (has_shade || (bg_flags & BG_TINT_SET))
967	bg_flags |= BG_NEEDS_TINT;
968	}
969
970	bool	410	bool
971	rxvt_term::bg_set_tint (rxvt_color &new_tint)	411	image_effects::set_tint (const rxvt_color &new_tint)
972	{	412	{
973	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	413	if (!tint_set || tint != new_tint)
974	{	414	{
975	tint = new_tint;	415	tint = new_tint;
976	bg_flags |= BG_TINT_SET;	416	tint_set = true;
977	set_tint_shade_flags ();	417
978	return true;	418	return true;
979	}	419	}
980		420
981	return false;	421	return false;
982	}	422	}
983		423
984	bool	424	bool
985	rxvt_term::bg_set_shade (const char *shade_str)	425	image_effects::set_shade (const char *shade_str)
986	{	426	{
987	int new_shade = (shade_str) ? atoi (shade_str) : 100;	427	int new_shade = atoi (shade_str);
988		428
989	clamp_it (new_shade, -100, 200);	429	clamp_it (new_shade, -100, 200);
990	if (new_shade < 0)	430	if (new_shade < 0)
991	new_shade = 200 - (100 + new_shade);	431	new_shade = 200 - (100 + new_shade);
992		432
993	if (new_shade != shade)	433	if (new_shade != shade)
994	{	434	{
995	shade = new_shade;	435	shade = new_shade;
996	set_tint_shade_flags ();
997	return true;	436	return true;
998	}	437	}
999		438
1000	return false;	439	return false;
1001	}	440	}
1002		441
1003	#if XRENDER	442	# if ENABLE_TRANSPARENCY
1004	static void	443	/*
1005	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1006	{
1007	double sigma = radius / 2.0;
1008	double scale = sqrt (2.0 * M_PI) * sigma;
1009	double sum = 0.0;
1010
1011	for (int i = 0; i < width; i++)
1012	{
1013	double x = i - width / 2;
1014	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1015	sum += kernel[i];
1016	}
1017
1018	params[0] = XDoubleToFixed (width);
1019	params[1] = XDoubleToFixed (1);
1020
1021	for (int i = 0; i < width; i++)
1022	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1023	}
1024	#endif
1025
1026	bool
1027	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1028	{
1029	bool ret = false;
1030	#if XRENDER
1031	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1032	double *kernel = (double *)malloc (size * sizeof (double));
1033	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1034
1035	XRenderPictureAttributes pa;
1036	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1037
1038	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1039	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1040
1041	if (kernel && params && src && dst)
1042	{
1043	if (h_blurRadius)
1044	{
1045	size = h_blurRadius * 2 + 1;
1046	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1047
1048	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1049	XRenderComposite (dpy,
1050	PictOpSrc,
1051	src,
1052	None,
1053	dst,
1054	0, 0,
1055	0, 0,
1056	0, 0,
1057	width, height);
1058	}
1059
1060	if (v_blurRadius)
1061	{
1062	size = v_blurRadius * 2 + 1;
1063	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1064	::swap (params[0], params[1]);
1065
1066	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1067	XRenderComposite (dpy,
1068	PictOpSrc,
1069	src,
1070	None,
1071	dst,
1072	0, 0,
1073	0, 0,
1074	0, 0,
1075	width, height);
1076	}
1077
1078	ret = true;
1079	}
1080
1081	free (kernel);
1082	free (params);
1083	XRenderFreePicture (dpy, src);
1084	XRenderFreePicture (dpy, dst);
1085	#endif
1086	return ret;
1087	}
1088
1089	bool
1090	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1091	{
1092	bool ret = false;
1093
1094	if (bg_flags & BG_TINT_BITAND)
1095	{
1096	XGCValues gcv;
1097	GC gc;
1098
1099	/* In this case we can tint image server-side getting significant
1100	* performance improvements, as we eliminate XImage transfer
1101	*/
1102	gcv.foreground = Pixel (tint);
1103	gcv.function = GXand;
1104	gcv.fill_style = FillSolid;
1105	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1106	if (gc)
1107	{
1108	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1109	ret = true;
1110	XFreeGC (dpy, gc);
1111	}
1112	}
1113	else
1114	{
1115	# if XRENDER
1116	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1117
1118	if (bg_flags & BG_TINT_SET)
1119	tint.get (c);
1120
1121	if (shade <= 100)
1122	{
1123	c.r = (c.r * shade) / 100;
1124	c.g = (c.g * shade) / 100;
1125	c.b = (c.b * shade) / 100;
1126	}
1127	else
1128	{
1129	c.r = (c.r * (200 - shade)) / 100;
1130	c.g = (c.g * (200 - shade)) / 100;
1131	c.b = (c.b * (200 - shade)) / 100;
1132	}
1133
1134	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1135	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1136	XRenderPictureAttributes pa;
1137
1138	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1139
1140	pa.repeat = True;
1141
1142	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1143	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1144	XFreePixmap (dpy, overlay_pmap);
1145
1146	pa.component_alpha = True;
1147	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1148	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1149	XFreePixmap (dpy, mask_pmap);
1150
1151	if (mask_pic && overlay_pic && back_pic)
1152	{
1153	XRenderColor mask_c;
1154
1155	mask_c.red = mask_c.green = mask_c.blue = 0;
1156	mask_c.alpha = 0xffff;
1157	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1158
1159	mask_c.alpha = 0;
1160	mask_c.red = 0xffff - c.r;
1161	mask_c.green = 0xffff - c.g;
1162	mask_c.blue = 0xffff - c.b;
1163	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1164	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1165
1166	if (shade > 100)
1167	{
1168	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1169	mask_c.alpha = 0;
1170	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1171
1172	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1173	}
1174
1175	ret = true;
1176	}
1177
1178	XRenderFreePicture (dpy, mask_pic);
1179	XRenderFreePicture (dpy, overlay_pic);
1180	XRenderFreePicture (dpy, back_pic);
1181	# endif
1182	}
1183
1184	return ret;
1185	}
1186
1187	/* make_transparency_pixmap()
1188	* 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
1189	* 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
1190	* our window.	446	* our window.
1191	*/	447	*/
1192	unsigned long	448	bool
1193	rxvt_term::make_transparency_pixmap ()	449	rxvt_term::render_root_image ()
1194	{	450	{
1195	unsigned long result = 0;
1196
1197	/* 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
1198	* be always up-to-date, so let's use it :	452	* be always up-to-date, so let's use it :
1199	*/	453	*/
1200	int screen = display->screen;	454	int screen = display->screen;
1201	int root_depth = DefaultDepth (dpy, screen);
1202	int root_width = DisplayWidth (dpy, screen);	455	int root_width = DisplayWidth (dpy, screen);
1203	int root_height = DisplayHeight (dpy, screen);	456	int root_height = DisplayHeight (dpy, screen);
1204	unsigned int root_pmap_width, root_pmap_height;
1205	int window_width = szHint.width;	457	int parent_width = szHint.width;
1206	int window_height = szHint.height;	458	int parent_height = szHint.height;
1207	int sx, sy;	459	int sx, sy;
1208	XGCValues gcv;
1209	GC gc;
1210		460
1211	sx = target_x;	461	sx = parent_x;
1212	sy = target_y;	462	sy = parent_y;
		463
		464	if (!root_img)
		465	return false;
1213		466
1214	/* 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 : */
1215	if (sx + window_width <= 0 || sy + window_height <= 0	468	if (sx + parent_width <= 0 || sy + parent_height <= 0
1216	|| sx >= root_width || sy >= root_height)	469	|| sx >= root_width || sy >= root_height)
1217	return 0;	470	return 0;
1218		471
1219	// validate root pixmap and get its size	472	while (sx < 0) sx += root_img->w;
1220	if (root_pixmap != None)	473	while (sy < 0) sy += root_img->h;
1221	{
1222	Window wdummy;
1223	int idummy;
1224	unsigned int udummy;
1225		474
1226	allowedxerror = -1;	475	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1227		476
1228	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	477	if (root_effects.need_blur ())
1229	root_pixmap = None;	478	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1230		479
1231	allowedxerror = 0;	480	if (root_effects.need_tint ())
1232	}	481	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1233		482
1234	Pixmap recoded_root_pmap = root_pixmap;
1235
1236	if (root_pixmap != None && root_depth != depth)
1237	{
1238	#if XRENDER
1239	if (bg_flags & BG_HAS_RENDER)
1240	{
1241	XRenderPictureAttributes pa;
1242
1243	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1244	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1245
1246	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1247	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	483	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1248	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	484	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1249		485
1250	if (src && dst)	486	delete bg_img;
1251	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	487	bg_img = img;
1252	else
1253	{
1254	XFreePixmap (dpy, recoded_root_pmap);
1255	root_pixmap = None;
1256	}
1257		488
1258	XRenderFreePicture (dpy, src);
1259	XRenderFreePicture (dpy, dst);
1260	}
1261	else
1262	#endif
1263	root_pixmap = None;
1264	}
1265
1266	if (root_pixmap == None)
1267	return 0;
1268
1269	if (bg_pixmap == None
1270	|| bg_pmap_width != window_width
1271	|| bg_pmap_height != window_height)
1272	{
1273	if (bg_pixmap)
1274	XFreePixmap (dpy, bg_pixmap);
1275	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1276	bg_pmap_width = window_width;
1277	bg_pmap_height = window_height;
1278	}
1279
1280	if (bg_pixmap == None)
1281	return 0;
1282
1283	/* straightforward pixmap copy */
1284	while (sx < 0) sx += (int)root_width;
1285	while (sy < 0) sy += (int)root_height;
1286
1287	gcv.tile = recoded_root_pmap;
1288	gcv.fill_style = FillTiled;
1289	gcv.ts_x_origin = -sx;
1290	gcv.ts_y_origin = -sy;
1291	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1292
1293	if (gc)
1294	{
1295	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1296	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1297	XFreeGC (dpy, gc);
1298
1299	if (!(bg_flags & BG_CLIENT_RENDER))
1300	{
1301	if ((bg_flags & BG_NEEDS_BLUR)
1302	&& (bg_flags & BG_HAS_RENDER_CONV))
1303	{
1304	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1305	result &= ~BG_NEEDS_BLUR;
1306	}
1307	if ((bg_flags & BG_NEEDS_TINT)
1308	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1309	{
1310	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1311	result &= ~BG_NEEDS_TINT;
1312	}
1313	} /* server side rendering completed */
1314	}
1315
1316	if (recoded_root_pmap != root_pixmap)
1317	XFreePixmap (dpy, recoded_root_pmap);
1318
1319	return result;	489	return true;
1320	}	490	}
1321		491
1322	void	492	void
1323	rxvt_term::bg_set_root_pixmap ()	493	rxvt_term::bg_set_root_pixmap ()
1324	{	494	{
1325	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	495	delete root_img;
1326	if (new_root_pixmap == None)	496	root_img = rxvt_img::new_from_root (this);
1327	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1328
1329	root_pixmap = new_root_pixmap;
1330	}	497	}
1331	# endif /* ENABLE_TRANSPARENCY */	498	# endif /* ENABLE_TRANSPARENCY */
1332		499
1333	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	500	void
1334	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1335	# endif
1336
1337	bool
1338	rxvt_term::bg_render ()	501	rxvt_term::bg_render ()
1339	{	502	{
1340	unsigned long tr_flags = 0;	503	if (bg_flags & BG_INHIBIT_RENDER)
		504	return;
1341		505
1342	bg_invalidate ();	506	bg_invalidate ();
1343	# ifdef ENABLE_TRANSPARENCY	507	# if ENABLE_TRANSPARENCY
1344	if (bg_flags & BG_IS_TRANSPARENT)	508	if (bg_flags & BG_IS_TRANSPARENT)
1345	{	509	{
1346	/* we need to re-generate transparency pixmap in that case ! */	510	/* we need to re-generate transparency pixmap in that case ! */
1347	tr_flags = make_transparency_pixmap ();	511	if (render_root_image ())
1348	if (tr_flags == 0)
1349	return false;
1350	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1351	bg_flags |= BG_IS_VALID;	512	bg_flags |= BG_IS_VALID;
1352	}	513	}
1353	# endif	514	# endif
1354		515
1355	# ifdef BG_IMAGE_FROM_FILE	516	# if BG_IMAGE_FROM_FILE
1356	if ((bg_flags & BG_IS_FROM_FILE)	517	if (fimage.img)
1357	|| (tr_flags & BG_EFFECTS_FLAGS))
1358	{	518	{
1359	if (render_image (tr_flags))	519	if (render_image (fimage))
1360	bg_flags |= BG_IS_VALID;	520	bg_flags |= BG_IS_VALID;
1361	}	521	}
1362	# endif	522	# endif
1363		523
1364	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1365	XImage *result = NULL;
1366
1367	if (tr_flags && !(bg_flags & BG_IS_VALID))
1368	{
1369	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1370	}
1371
1372	if (result)
1373	{
1374	/* our own client-side tinting */
1375	if (tr_flags & BG_NEEDS_TINT)
1376	{
1377	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1378	if (bg_flags & BG_TINT_SET)
1379	tint.get (c);
1380	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1381	}
1382
1383	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1384
1385	if (gc)
1386	{
1387	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1388
1389	XFreeGC (dpy, gc);
1390	bg_flags |= BG_IS_VALID;
1391	}
1392
1393	XDestroyImage (result);
1394	}
1395	# endif
1396
1397	if (!(bg_flags & BG_IS_VALID))	524	if (!(bg_flags & BG_IS_VALID))
1398	{	525	{
1399	if (bg_pixmap != None)	526	delete bg_img;
1400	{	527	bg_img = 0;
1401	XFreePixmap (dpy, bg_pixmap);
1402	bg_pixmap = None;
1403	}
1404	}	528	}
1405		529
1406	scr_recolour (false);	530	scr_recolour (false);
1407	bg_flags |= BG_NEEDS_REFRESH;	531	bg_flags |= BG_NEEDS_REFRESH;
1408		532
1409	bg_valid_since = ev::now ();	533	bg_valid_since = ev::now ();
1410
1411	return true;
1412	}	534	}
1413		535
1414	void	536	void
1415	rxvt_term::bg_init ()	537	rxvt_term::bg_init ()
1416	{	538	{
1417	#ifdef ENABLE_TRANSPARENCY	539	#if ENABLE_TRANSPARENCY
1418	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	}
1419	#endif	557	#endif
1420		558
1421	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	559	#if BG_IMAGE_FROM_FILE
1422	#if XRENDER	560	if (rs[Rs_backgroundPixmap])
1423	int major, minor;
1424	if (XRenderQueryVersion (dpy, &major, &minor))
1425	bg_flags |= BG_HAS_RENDER;
1426	XFilters *filters = XRenderQueryFilters (dpy, vt);
1427	if (filters)
1428	{	561	{
1429	for (int i = 0; i < filters->nfilter; i++)	562	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1430	if (!strcmp (filters->filter[i], FilterConvolution))	563	if (!bg_window_position_sensitive ())
1431	bg_flags |= BG_HAS_RENDER_CONV;	564	update_background ();
1432
1433	XFree (filters);
1434	}	565	}
1435	#endif	566	#endif
1436	}	567	}
1437		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
1438	#endif /* HAVE_BG_PIXMAP */	602	#endif /* HAVE_BG_PIXMAP */
1439
1440	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1441	/* taken from aterm-0.4.2 */
1442
1443	static void
1444	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1445	{
1446	int sh_r, sh_g, sh_b;
1447	uint32_t mask_r, mask_g, mask_b;
1448	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1449	rgba low;
1450	rgba high;
1451	int i;
1452	int host_byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
1453
1454	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1455
1456	/* for convenience */
1457	mask_r = visual->red_mask;
1458	mask_g = visual->green_mask;
1459	mask_b = visual->blue_mask;
1460
1461	/* boring lookup table pre-initialization */
1462	switch (ximage->depth)
1463	{
1464	case 15:
1465	if ((mask_r != 0x7c00) ||
1466	(mask_g != 0x03e0) ||
1467	(mask_b != 0x001f))
1468	return;
1469	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1470	lookup_r = lookup;
1471	lookup_g = lookup+32;
1472	lookup_b = lookup+32+32;
1473	sh_r = 10;
1474	sh_g = 5;
1475	sh_b = 0;
1476	break;
1477	case 16:
1478	if ((mask_r != 0xf800) ||
1479	(mask_g != 0x07e0) ||
1480	(mask_b != 0x001f))
1481	return;
1482	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1483	lookup_r = lookup;
1484	lookup_g = lookup+32;
1485	lookup_b = lookup+32+64;
1486	sh_r = 11;
1487	sh_g = 5;
1488	sh_b = 0;
1489	break;
1490	case 24:
1491	if ((mask_r != 0xff0000) ||
1492	(mask_g != 0x00ff00) ||
1493	(mask_b != 0x0000ff))
1494	return;
1495	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1496	lookup_r = lookup;
1497	lookup_g = lookup+256;
1498	lookup_b = lookup+256+256;
1499	sh_r = 16;
1500	sh_g = 8;
1501	sh_b = 0;
1502	break;
1503	case 32:
1504	if ((mask_r != 0xff0000) ||
1505	(mask_g != 0x00ff00) ||
1506	(mask_b != 0x0000ff))
1507	return;
1508	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1509	lookup_r = lookup;
1510	lookup_g = lookup+256;
1511	lookup_b = lookup+256+256;
1512	sh_r = 16;
1513	sh_g = 8;
1514	sh_b = 0;
1515	break;
1516	default:
1517	return; /* we do not support this color depth */
1518	}
1519
1520	/* prepare limits for color transformation (each channel is handled separately) */
1521	if (shade > 100)
1522	{
1523	shade = 200 - shade;
1524
1525	high.r = c.r * shade / 100;
1526	high.g = c.g * shade / 100;
1527	high.b = c.b * shade / 100;
1528
1529	low.r = 65535 * (100 - shade) / 100;
1530	low.g = 65535 * (100 - shade) / 100;
1531	low.b = 65535 * (100 - shade) / 100;
1532	}
1533	else
1534	{
1535	high.r = c.r * shade / 100;
1536	high.g = c.g * shade / 100;
1537	high.b = c.b * shade / 100;
1538
1539	low.r = low.g = low.b = 0;
1540	}
1541
1542	/* fill our lookup tables */
1543	for (i = 0; i <= mask_r>>sh_r; i++)
1544	{
1545	uint32_t tmp;
1546	tmp = i * high.r;
1547	tmp += (mask_r>>sh_r) * low.r;
1548	lookup_r[i] = (tmp/65535)<<sh_r;
1549	}
1550	for (i = 0; i <= mask_g>>sh_g; i++)
1551	{
1552	uint32_t tmp;
1553	tmp = i * high.g;
1554	tmp += (mask_g>>sh_g) * low.g;
1555	lookup_g[i] = (tmp/65535)<<sh_g;
1556	}
1557	for (i = 0; i <= mask_b>>sh_b; i++)
1558	{
1559	uint32_t tmp;
1560	tmp = i * high.b;
1561	tmp += (mask_b>>sh_b) * low.b;
1562	lookup_b[i] = (tmp/65535)<<sh_b;
1563	}
1564
1565	/* apply table to input image (replacing colors by newly calculated ones) */
1566	if (ximage->bits_per_pixel == 32
1567	&& (ximage->depth == 24 || ximage->depth == 32)
1568	&& ximage->byte_order == host_byte_order)
1569	{
1570	uint32_t *p1, *pf, *p, *pl;
1571	p1 = (uint32_t *) ximage->data;
1572	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1573
1574	while (p1 < pf)
1575	{
1576	p = p1;
1577	pl = p1 + ximage->width;
1578	for (; p < pl; p++)
1579	{
1580	*p = lookup_r[(*p & 0xff0000) >> 16] |
1581	lookup_g[(*p & 0x00ff00) >> 8] |
1582	lookup_b[(*p & 0x0000ff)] |
1583	(*p & 0xff000000);
1584	}
1585	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1586	}
1587	}
1588	else
1589	{
1590	for (int y = 0; y < ximage->height; y++)
1591	for (int x = 0; x < ximage->width; x++)
1592	{
1593	unsigned long pixel = XGetPixel (ximage, x, y);
1594	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1595	lookup_g[(pixel & mask_g) >> sh_g] |
1596	lookup_b[(pixel & mask_b) >> sh_b];
1597	XPutPixel (ximage, x, y, pixel);
1598	}
1599	}
1600
1601	free (lookup);
1602	}
1603	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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