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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.157 by sf-exg, Tue Aug 9 21:48:00 2011 UTC vs.
Revision 1.242 by sf-exg, Mon Jun 11 14:56:33 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	* 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	*/
61
62	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
63	void	30	void
64	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
65	{	32	{
66	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
67	if (original_asim)	34	delete root_img;
68	safe_asimage_destroy (original_asim);	35	root_img = 0;
69	if (asv)
70	destroy_asvisual (asv, 0);
71	if (asimman)
72	destroy_image_manager (asimman, 0);
73	#endif	36	# endif
74		37
75	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
76	if (pixbuf)	39	fimage.destroy ();
77	g_object_unref (pixbuf);
78	#endif	40	# endif
79		41
80	if (bg_pixmap)	42	delete bg_img;
81	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
82	}
83
84	bool
85	rxvt_term::bg_set_position (int x, int y)
86	{
87
88	if (target_x != x
89	|| target_y != y)
90	{
91	target_x = x;
92	target_y = y;
93	return true;
94	}
95	return false;
96	}	44	}
97		45
98	bool	46	bool
99	rxvt_term::bg_window_size_sensitive ()	47	rxvt_term::bg_window_size_sensitive ()
100	{	48	{
101	# ifdef ENABLE_TRANSPARENCY	49	# if ENABLE_TRANSPARENCY
102	if (bg_flags & BG_IS_TRANSPARENT)	50	if (bg_flags & BG_IS_TRANSPARENT)
103	return true;	51	return true;
104	# endif	52	# endif
105		53
106	# ifdef BG_IMAGE_FROM_FILE	54	# if BG_IMAGE_FROM_FILE
107	if (bg_flags & BG_IS_FROM_FILE)	55	if (fimage.img)
108	{	56	{
109	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)
110	return true;	60	return true;
111	}	61	}
112	# endif	62	# endif
113		63
114	return false;	64	return false;
115	}	65	}
116		66
117	bool	67	bool
118	rxvt_term::bg_window_position_sensitive ()	68	rxvt_term::bg_window_position_sensitive ()
119	{	69	{
120	# ifdef ENABLE_TRANSPARENCY	70	# if ENABLE_TRANSPARENCY
121	if (bg_flags & BG_IS_TRANSPARENT)	71	if (bg_flags & BG_IS_TRANSPARENT)
122	return true;	72	return true;
123	# endif	73	# endif
124		74
125	# ifdef BG_IMAGE_FROM_FILE	75	# if BG_IMAGE_FROM_FILE
126	if (bg_flags & BG_IS_FROM_FILE)	76	if (fimage.img)
127	{	77	{
128	if (bg_flags & BG_ROOT_ALIGN)	78	if (fimage.flags & IM_ROOT_ALIGN)
129	return true;	79	return true;
130	}	80	}
131	# endif	81	# endif
132		82
133	return false;	83	return false;
134	}	84	}
135		85
136	# ifdef BG_IMAGE_FROM_FILE	86	# if BG_IMAGE_FROM_FILE
137	static inline bool
138	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
139	{
140	if (geom_flags & flag)
141	{
142	if (new_value > 1000)
143	new_value = 1000;
144	if (new_value != scale)
145	{
146	scale = new_value;
147	return true;
148	}
149	}
150	return false;
151	}
152
153	static inline bool
154	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
155	{
156	if (geom_flags & flag)
157	{
158	if (new_value < -100)
159	new_value = -100;
160	else if (new_value > 200)
161	new_value = 200;
162	if (new_value != align)
163	{
164	align = new_value;
165	return true;
166	}
167	}
168	return false;
169	}
170
171	static inline int	87	static inline int
172	make_align_position (int align, int window_size, int image_size)	88	make_align_position (int align, int window_size, int image_size)
173	{	89	{
174	int diff = window_size - image_size;
175	int smaller = min (image_size, window_size);
176
177	if (align >= 0 && align <= 100)	90	if (align >= 0 && align <= 100)
178	return diff * align / 100;	91	return lerp (0, window_size - image_size, align);
179	else if (align > 100 && align <= 200)	92	else if (align > 100)
180	return ((align - 100) * smaller / 100) + window_size - smaller;	93	return lerp (window_size - image_size, window_size, align - 100);
181	else if (align >= -100 && align < 0)	94	else
182	return ((align + 100) * smaller / 100) - image_size;	95	return lerp (-image_size, 0, align + 100);
183	return 0;
184	}	96	}
185		97
186	static inline int	98	static void
187	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)
188	{	100	{
189	int src_pos = 0;	101	if (!strcasecmp (style, "tiled"))
190	dst_pos = pos;
191	dst_size = size;
192	if (pos < 0)
193	{
194	src_pos = -pos;
195	dst_pos = 0;
196	dst_size += pos;
197	}	102	{
198		103	flags = IM_TILE;
199	if (dst_pos + dst_size > target_size)	104	w = h = noScale;
200	dst_size = target_size - dst_pos;	105	x = y = 0;
201	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	}
202	}	131	}
203		132
204	bool	133	bool
205	rxvt_term::bg_set_geometry (const char *geom, bool update)	134	rxvt_image::set_geometry (const char *geom, bool update)
206	{	135	{
207	bool changed = false;	136	bool changed = false;
208	int geom_flags = 0;	137	int geom_flags = 0;
209	int x = 0, y = 0;	138	int x = h_align;
		139	int y = v_align;
210	unsigned int w = 0, h = 0;	140	unsigned int w = h_scale;
211	unsigned int n;	141	unsigned int h = v_scale;
212	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	142	uint8_t new_flags = 0;
213	const char *ops;
214		143
215	if (geom == NULL)	144	if (geom == NULL)
216	return false;	145	return false;
217		146
218	char str[256];	147	if (geom[0])
219
220	ops = strchr (geom, ':');
221	if (ops == NULL)
222	n = strlen (geom);
223	else
224	n = ops - geom;
225
226	if (n >= sizeof (str))
227	return false;
228
229	memcpy (str, geom, n);
230	str[n] = '\0';
231	rxvt_strtrim (str);
232
233	if (str[0])
234	{	148	{
235	/* 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
236	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	211	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
237	} /* done parsing geometry string */	212	} /* done parsing ops */
		213
		214	rxvt_free_strsplit (arr);
		215	}
		216
		217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
238		218
239	if (!update)	219	if (!update)
240	{	220	{
241	if (!(geom_flags & XValue))	221	if (!(geom_flags & XValue))
242	x = y = defaultAlign;	222	x = y = defaultAlign;
…		…
247	w = h = defaultScale;	227	w = h = defaultScale;
248	else if (!(geom_flags & HeightValue))	228	else if (!(geom_flags & HeightValue))
249	h = w;	229	h = w;
250	else if (!(geom_flags & WidthValue))	230	else if (!(geom_flags & WidthValue))
251	w = h;	231	w = h;
252
253	geom_flags |= WidthValue|HeightValue|XValue|YValue;
254	}
255
256	if (ops)
257	{	232	}
258	char **arr = rxvt_strsplit (':', ops + 1);
259		233
260	for (int i = 0; arr[i]; i++)	234	clamp_it (x, -100, 200);
261	{	235	clamp_it (y, -100, 200);
262	if (!strcasecmp (arr[i], "tile"))
263	{
264	new_flags |= BG_TILE;
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], "root"))
294	{
295	new_flags |= BG_TILE|BG_ROOT_ALIGN;
296	w = h = noScale;
297	geom_flags |= WidthValue|HeightValue;
298	}
299	} /* done parsing ops */
300
301	rxvt_free_strsplit (arr);
302	}	242	{
303
304	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
305	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
306	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
307	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
308
309	if (new_flags != bg_flags)
310	{
311	bg_flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
312	changed = true;	248	changed = true;
313	}	249	}
314		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
315	return changed;	256	return changed;
316	}	257	}
317		258
318	void	259	void
319	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)
320	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
321	int target_width = szHint.width;	264	int parent_width = szHint.width;
322	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);
323		268
324	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)
325	{	273	{
326	float scale = (float)target_width / image_width;	274	float scale = (float)w / image_width;
327	min_it (scale, (float)target_height / image_height);	275	min_it (scale, (float)h / image_height);
328	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
329	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
330	}	278	}
331	else
332	{
333	w = h_scale * target_width / 100;
334	h = v_scale * target_height / 100;
335	}
336		279
337	if (!w) w = image_width;	280	if (!w) w = image_width;
338	if (!h) h = image_height;	281	if (!h) h = image_height;
339		282
340	if (bg_flags & BG_ROOT_ALIGN)	283	if (image.flags & IM_ROOT_ALIGN)
341	{	284	{
342	x = -target_x;	285	x = -parent_x;
343	y = -target_y;	286	y = -parent_y;
344	}	287	}
345	else	288	else
346	{	289	{
347	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
348	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
349	}
350
351	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
352	if (!(bg_flags & BG_TILE)
353	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
354	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
355	|| w > target_width || h > target_height)
356	bg_flags |= BG_IS_SIZE_SENSITIVE;
357	}
358
359	# ifdef HAVE_AFTERIMAGE
360	bool
361	rxvt_term::render_image (unsigned long tr_flags)
362	{
363	init_asv ();
364
365	ASImage *background = NULL;
366	ARGB32 background_tint = TINT_LEAVE_SAME;
367
368	# ifdef ENABLE_TRANSPARENCY
369	if (tr_flags)
370	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
371
372	if (tr_flags & BG_NEEDS_TINT)
373	{	292	}
374	ShadingInfo as_shade;	293	}
375	as_shade.shading = shade;
376		294
377	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
378	if (bg_flags & BG_TINT_SET)	296	rxvt_term::render_image (rxvt_image &image)
379	tint.get (c);	297	{
380	as_shade.tintColor.red = c.r;
381	as_shade.tintColor.green = c.g;
382	as_shade.tintColor.blue = c.b;
383
384	background_tint = shading2tint32 (&as_shade);
385	}
386
387	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
388	{
389	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
390	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
391	100, ASIMAGE_QUALITY_DEFAULT);
392	if (tmp)
393	{
394	destroy_asimage (&background);
395	background = tmp;
396	}
397	}
398	# endif
399
400	ASImage *result = 0;
401
402	int target_width = szHint.width;	298	int parent_width = szHint.width;
403	int target_height = szHint.height;	299	int parent_height = szHint.height;
404	int new_pmap_width = target_width;
405	int new_pmap_height = target_height;
406		300
407	int x = 0;	301	int x = 0;
408	int y = 0;	302	int y = 0;
409	int w = 0;	303	int w = 0;
410	int h = 0;	304	int h = 0;
411		305
412	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
413	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
414		307
415	if (!original_asim	308	if (!(image.flags & IM_ROOT_ALIGN)
416	|| (!(bg_flags & BG_ROOT_ALIGN)
417	&& (x >= target_width	309	&& (x >= parent_width
418	|| y >= target_height	310	|| y >= parent_height
419	|| (x + w <= 0)	311	|| x + w <= 0
420	|| (y + h <= 0))))	312	|| y + h <= 0))
421	{	313	return false;
422	if (background)
423	{
424	new_pmap_width = background->width;
425	new_pmap_height = background->height;
426	result = background;
427		314
428	if (background_tint != TINT_LEAVE_SAME)	315	rxvt_img *img = image.img->scale (w, h);
429	{	316
430	ASImage *tmp = tile_asimage (asv, background, 0, 0,	317	if (image.flags & IM_TILE)
431	target_width, target_height, background_tint,	318	img->repeat_mode (RepeatNormal);
432	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
433	if (tmp)
434	result = tmp;
435	}
436	}
437	else
438	new_pmap_width = new_pmap_height = 0;
439	}
440	else	319	else
441	{	320	img->repeat_mode (RepeatNone);
442	result = original_asim;	321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
443		322
444	if ((w != original_asim->width)	323	if (bg_flags & BG_IS_VALID)
445	|| (h != original_asim->height))
446	{
447	result = scale_asimage (asv, original_asim,
448	w, h,
449	background ? ASA_ASImage : ASA_XImage,
450	100, ASIMAGE_QUALITY_DEFAULT);
451	}
452
453	if (background == NULL)
454	{
455	if (bg_flags & BG_TILE)
456	{
457	/* if tiling - pixmap has to be sized exactly as the image,
458	but there is no need to make it bigger than the window! */
459	new_pmap_width = min (result->width, target_width);
460	new_pmap_height = min (result->height, target_height);
461
462	/* we also need to tile our image in both directions */
463	ASImage *tmp = tile_asimage (asv, result,
464	(int)result->width - x,
465	(int)result->height - y,
466	new_pmap_width,
467	new_pmap_height,
468	TINT_LEAVE_SAME, ASA_XImage,
469	100, ASIMAGE_QUALITY_DEFAULT);
470	if (tmp)
471	{
472	if (result != original_asim)
473	destroy_asimage (&result);
474
475	result = tmp;
476	}
477	}
478	}
479	else
480	{
481	/* if blending background and image - pixmap has to be sized same as target window */
482	ASImageLayer *layers = create_image_layers (2);
483
484	layers[0].im = background;
485	layers[0].clip_width = target_width;
486	layers[0].clip_height = target_height;
487	layers[0].tint = background_tint;
488	layers[1].im = result;
489
490	if (bg_flags & BG_TILE)
491	{
492	/* tile horizontally */
493	while (x > 0) x -= (int)result->width;
494	layers[1].dst_x = x;
495	layers[1].clip_width = result->width+target_width;
496	}
497	else
498	{
499	/* clip horizontally */
500	layers[1].dst_x = x;
501	layers[1].clip_width = result->width;
502	}
503
504	if (bg_flags & BG_TILE)
505	{
506	while (y > 0) y -= (int)result->height;
507	layers[1].dst_y = y;
508	layers[1].clip_height = result->height + target_height;
509	}
510	else
511	{
512	layers[1].dst_y = y;
513	layers[1].clip_height = result->height;
514	}
515
516	if (rs[Rs_blendtype])
517	{
518	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
519	if (layers[1].merge_scanlines == NULL)
520	layers[1].merge_scanlines = alphablend_scanlines;
521	}
522
523	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
524	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
525
526	if (tmp)
527	{
528	if (result != original_asim)
529	destroy_asimage (&result);
530
531	result = tmp;
532	}
533
534	free (layers);
535	}
536	}	324	{
537		325	double factor = image.alpha * 1. / 0xffff;
538	bool ret = false;	326	bg_img->blend (img, factor)->replace (img);
539
540	if (result)
541	{	327	}
542	XGCValues gcv;
543	GC gc;
544		328
545	/* create Pixmap */	329	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
546	if (bg_pixmap == None	330	img->convert_format (format, pix_colors [Color_bg])->replace (img);
547	|| bg_pmap_width != new_pmap_width
548	|| bg_pmap_height != new_pmap_height)
549	{
550	if (bg_pixmap)
551	XFreePixmap (dpy, bg_pixmap);
552	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
553	bg_pmap_width = new_pmap_width;
554	bg_pmap_height = new_pmap_height;
555	}
556	/* fill with background color (if result's not completely overlapping it) */
557	gcv.foreground = pix_colors[Color_bg];
558	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
559		331
560	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;	332	delete bg_img;
561	int dst_width = result->width, dst_height = result->height;	333	bg_img = img;
562	if (background == NULL)
563	{
564	if (!(bg_flags & BG_TILE))
565	{
566	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
567	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
568	}
569		334
570	if (dst_x > 0 || dst_y > 0
571	|| dst_x + dst_width < new_pmap_width
572	|| dst_y + dst_height < new_pmap_height)
573	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
574	}
575
576	/* put result on pixmap */
577	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
578	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
579
580	if (result != background && result != original_asim)
581	destroy_asimage (&result);
582
583	XFreeGC (dpy, gc);
584
585	ret = true;
586	}
587
588	if (background)
589	destroy_asimage (&background);
590
591	return ret;
592	}
593	# endif /* HAVE_AFTERIMAGE */
594
595	# ifdef HAVE_PIXBUF
596	bool
597	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
598	int src_x, int src_y, int dst_x, int dst_y,
599	unsigned int width, unsigned int height)
600	{
601	XImage *ximage;
602	char *data, *line;
603	int bytes_per_pixel;
604	int width_r, width_g, width_b;
605	int sh_r, sh_g, sh_b;
606	int rowstride;
607	int channels;
608	unsigned char *row;
609
610	if (visual->c_class != TrueColor)
611	return false;
612
613	if (depth == 24 || depth == 32)
614	bytes_per_pixel = 4;
615	else if (depth == 15 || depth == 16)
616	bytes_per_pixel = 2;
617	else
618	return false;
619
620	width_r = ecb_popcount32 (visual->red_mask);
621	width_g = ecb_popcount32 (visual->green_mask);
622	width_b = ecb_popcount32 (visual->blue_mask);
623
624	if (width_r > 8 || width_g > 8 || width_b > 8)
625	return false;
626
627	sh_r = ecb_ctz32 (visual->red_mask);
628	sh_g = ecb_ctz32 (visual->green_mask);
629	sh_b = ecb_ctz32 (visual->blue_mask);
630
631	if (width > INT_MAX / height / bytes_per_pixel)
632	return false;
633
634	data = (char *)malloc (width * height * bytes_per_pixel);
635	if (!data)
636	return false;
637
638	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
639	width, height, bytes_per_pixel * 8, 0);
640	if (!ximage)
641	{
642	free (data);
643	return false;
644	}
645
646	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
647
648	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
649	channels = gdk_pixbuf_get_n_channels (pixbuf);
650	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
651	line = data;
652
653	for (int y = 0; y < height; y++)
654	{
655	for (int x = 0; x < width; x++)
656	{
657	unsigned char *pixel = row + x * channels;
658	uint32_t value;
659
660	value = ((pixel[0] >> (8 - width_r)) << sh_r)
661	| ((pixel[1] >> (8 - width_g)) << sh_g)
662	| ((pixel[2] >> (8 - width_b)) << sh_b);
663
664	if (bytes_per_pixel == 4)
665	((uint32_t *)line)[x] = value;
666	else
667	((uint16_t *)line)[x] = value;
668	}
669
670	row += rowstride;
671	line += ximage->bytes_per_line;
672	}
673
674	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
675	XDestroyImage (ximage);
676	return true;	335	return true;
677	}	336	}
678		337
679	bool	338	rxvt_image::rxvt_image ()
680	rxvt_term::render_image (unsigned long tr_flags)
681	{	339	{
682	if (!pixbuf)	340	alpha = 0xffff;
683	return false;	341	flags = 0;
		342	h_scale =
		343	v_scale = defaultScale;
		344	h_align =
		345	v_align = defaultAlign;
684		346
685	if (tr_flags	347	img = 0;
686	&& !(bg_flags & BG_HAS_RENDER))
687	return false;
688
689	GdkPixbuf *result;
690
691	int image_width = gdk_pixbuf_get_width (pixbuf);
692	int image_height = gdk_pixbuf_get_height (pixbuf);
693
694	int target_width = szHint.width;
695	int target_height = szHint.height;
696	int new_pmap_width = target_width;
697	int new_pmap_height = target_height;
698
699	int x = 0;
700	int y = 0;
701	int w = 0;
702	int h = 0;
703
704	get_image_geometry (image_width, image_height, w, h, x, y);
705
706	if (!(bg_flags & BG_ROOT_ALIGN)
707	&& (x >= target_width
708	|| y >= target_height
709	|| (x + w <= 0)
710	|| (y + h <= 0)))
711	return false;
712
713	result = pixbuf;
714
715	if ((w != image_width)
716	|| (h != image_height))
717	{
718	result = gdk_pixbuf_scale_simple (pixbuf,
719	w, h,
720	GDK_INTERP_BILINEAR);
721	}
722
723	if (!result)
724	return false;
725
726	bool ret = false;
727
728	XGCValues gcv;
729	GC gc;
730	Pixmap root_pmap;
731
732	image_width = gdk_pixbuf_get_width (result);
733	image_height = gdk_pixbuf_get_height (result);
734
735	if (tr_flags)
736	{
737	root_pmap = bg_pixmap;
738	bg_pixmap = None;
739	}
740	else
741	{
742	if (bg_flags & BG_TILE)
743	{
744	new_pmap_width = min (image_width, target_width);
745	new_pmap_height = min (image_height, target_height);
746	}
747	}
748
749	if (bg_pixmap == None
750	|| bg_pmap_width != new_pmap_width
751	|| bg_pmap_height != new_pmap_height)
752	{
753	if (bg_pixmap)
754	XFreePixmap (dpy, bg_pixmap);
755	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
756	bg_pmap_width = new_pmap_width;
757	bg_pmap_height = new_pmap_height;
758	}
759
760	gcv.foreground = pix_colors[Color_bg];
761	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
762
763	if (gc)
764	{
765	if (bg_flags & BG_TILE)
766	{
767	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
768	pixbuf_to_pixmap (result, tile, gc,
769	0, 0,
770	0, 0,
771	image_width, image_height);
772
773	gcv.tile = tile;
774	gcv.fill_style = FillTiled;
775	gcv.ts_x_origin = x;
776	gcv.ts_y_origin = y;
777	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
778
779	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
780	XFreePixmap (dpy, tile);
781	}
782	else
783	{
784	int src_x, src_y, dst_x, dst_y;
785	int dst_width, dst_height;
786
787	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
788	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
789
790	if (dst_x > 0 || dst_y > 0
791	|| dst_x + dst_width < new_pmap_width
792	|| dst_y + dst_height < new_pmap_height)
793	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
794
795	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
796	pixbuf_to_pixmap (result, bg_pixmap, gc,
797	src_x, src_y,
798	dst_x, dst_y,
799	dst_width, dst_height);
800	}
801
802	#if XRENDER
803	if (tr_flags)
804	{
805	XRenderPictureAttributes pa;
806
807	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);
808	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
809
810	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
811	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
812
813	pa.repeat = True;
814	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
815	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
816	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
817	XFreePixmap (dpy, mask_pmap);
818
819	XRenderColor mask_c;
820
821	mask_c.alpha = 0x8000;
822	mask_c.red = 0;
823	mask_c.green = 0;
824	mask_c.blue = 0;
825	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
826	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
827
828	XRenderFreePicture (dpy, src);
829	XRenderFreePicture (dpy, dst);
830	XRenderFreePicture (dpy, mask);
831	}
832	#endif
833
834	XFreeGC (dpy, gc);
835
836	ret = true;
837	}
838
839	if (result != pixbuf)
840	g_object_unref (result);
841
842	if (tr_flags)
843	XFreePixmap (dpy, root_pmap);
844
845	return ret;
846	}	348	}
847	# endif /* HAVE_PIXBUF */
848		349
849	bool	350	void
850	rxvt_term::bg_set_file (const char *file)	351	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
851	{	352	{
852	if (!file || !*file)	353	if (!file || !*file)
853	return false;	354	return;
854		355
855	if (const char *p = strchr (file, ';'))	356	const char *p = strchr (file, ';');
		357
		358	if (p)
856	{	359	{
857	size_t len = p - file;	360	size_t len = p - file;
858	char *f = rxvt_temp_buf<char> (len + 1);	361	char *f = rxvt_temp_buf<char> (len + 1);
859	memcpy (f, file, len);	362	memcpy (f, file, len);
860	f[len] = '\0';	363	f[len] = '\0';
861	file = f;	364	file = f;
862	}	365	}
863		366
864	# ifdef HAVE_AFTERIMAGE	367	set_file (s, file);
865	if (!asimman)	368	alpha = 0x8000;
866	asimman = create_generic_imageman (rs[Rs_path]);	369	set_geometry (p ? p + 1 : "");
867	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	370	}
868	if (image)
869	{
870	if (original_asim)
871	safe_asimage_destroy (original_asim);
872	original_asim = image;
873	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
874	return true;
875	}
876	# endif
877		371
878	# ifdef HAVE_PIXBUF	372	void
879	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	373	rxvt_image::set_file (rxvt_screen *s, const char *file)
880	if (image)	374	{
881	{	375	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
882	if (pixbuf)	376	delete img;
883	g_object_unref (pixbuf);	377	img = img2;
884	pixbuf = image;
885	bg_flags |= BG_IS_FROM_FILE;
886	return true;
887	}
888	# endif
889
890	return false;
891	}	378	}
892		379
893	# endif /* BG_IMAGE_FROM_FILE */	380	# endif /* BG_IMAGE_FROM_FILE */
894		381
895	# ifdef ENABLE_TRANSPARENCY
896	bool	382	bool
897	rxvt_term::bg_set_transparent ()	383	image_effects::set_blur (const char *geom)
898	{
899	if (!(bg_flags & BG_IS_TRANSPARENT))
900	{
901	bg_flags |= BG_IS_TRANSPARENT;
902	return true;
903	}
904
905	return false;
906	}
907
908	bool
909	rxvt_term::bg_set_blur (const char *geom)
910	{	384	{
911	bool changed = false;	385	bool changed = false;
912	unsigned int hr, vr;	386	unsigned int hr, vr;
913	int junk;	387	int junk;
914	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	388	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
931	{	405	{
932	changed = true;	406	changed = true;
933	v_blurRadius = vr;	407	v_blurRadius = vr;
934	}	408	}
935		409
936	if (v_blurRadius == 0 && h_blurRadius == 0)
937	bg_flags &= ~BG_NEEDS_BLUR;
938	else
939	bg_flags |= BG_NEEDS_BLUR;
940
941	return changed;	410	return changed;
942	}	411	}
943		412
944	void
945	rxvt_term::set_tint_shade_flags ()
946	{
947	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
948	bool has_shade = shade != 100;
949
950	bg_flags &= ~BG_TINT_FLAGS;
951
952	if (bg_flags & BG_TINT_SET)
953	{
954	tint.get (c);
955	if (!has_shade
956	&& (c.r <= 0x00ff || c.r >= 0xff00)
957	&& (c.g <= 0x00ff || c.g >= 0xff00)
958	&& (c.b <= 0x00ff || c.b >= 0xff00))
959	bg_flags |= BG_TINT_BITAND;
960	}
961
962	if (has_shade || (bg_flags & BG_TINT_SET))
963	bg_flags |= BG_NEEDS_TINT;
964	}
965
966	bool	413	bool
967	rxvt_term::bg_set_tint (rxvt_color &new_tint)	414	image_effects::set_tint (const rxvt_color &new_tint)
968	{	415	{
969	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	416	if (!tint_set || tint != new_tint)
970	{	417	{
971	tint = new_tint;	418	tint = new_tint;
972	bg_flags |= BG_TINT_SET;	419	tint_set = true;
973	set_tint_shade_flags ();	420
974	return true;	421	return true;
975	}	422	}
976		423
977	return false;	424	return false;
978	}	425	}
979		426
980	bool	427	bool
981	rxvt_term::bg_set_shade (const char *shade_str)	428	image_effects::set_shade (const char *shade_str)
982	{	429	{
983	int new_shade = (shade_str) ? atoi (shade_str) : 100;	430	int new_shade = atoi (shade_str);
984		431
985	clamp_it (new_shade, -100, 200);	432	clamp_it (new_shade, -100, 200);
986	if (new_shade < 0)	433	if (new_shade < 0)
987	new_shade = 200 - (100 + new_shade);	434	new_shade = 200 - (100 + new_shade);
988		435
989	if (new_shade != shade)	436	if (new_shade != shade)
990	{	437	{
991	shade = new_shade;	438	shade = new_shade;
992	set_tint_shade_flags ();
993	return true;	439	return true;
994	}	440	}
995		441
996	return false;	442	return false;
997	}	443	}
998		444
999	#if XRENDER	445	# if ENABLE_TRANSPARENCY
1000	static void
1001	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1002	{
1003	double sigma = radius / 2.0;
1004	double scale = sqrt (2.0 * M_PI) * sigma;
1005	double sum = 0.0;
1006
1007	for (int i = 0; i < width; i++)
1008	{
1009	double x = i - width / 2;
1010	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1011	sum += kernel[i];
1012	}
1013
1014	params[0] = XDoubleToFixed (width);
1015	params[1] = XDoubleToFixed (1);
1016
1017	for (int i = 0; i < width; i++)
1018	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1019	}
1020	#endif
1021
1022	bool
1023	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1024	{
1025	bool ret = false;
1026	#if XRENDER
1027	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1028	double *kernel = (double *)malloc (size * sizeof (double));
1029	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1030
1031	XRenderPictureAttributes pa;
1032	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1033
1034	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1035	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1036
1037	if (kernel && params)
1038	{
1039	if (h_blurRadius)
1040	{
1041	size = h_blurRadius * 2 + 1;
1042	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1043
1044	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1045	XRenderComposite (dpy,
1046	PictOpSrc,
1047	src,
1048	None,
1049	dst,
1050	0, 0,
1051	0, 0,
1052	0, 0,
1053	width, height);
1054	}
1055
1056	if (v_blurRadius)
1057	{
1058	size = v_blurRadius * 2 + 1;
1059	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1060	::swap (params[0], params[1]);
1061
1062	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1063	XRenderComposite (dpy,
1064	PictOpSrc,
1065	src,
1066	None,
1067	dst,
1068	0, 0,
1069	0, 0,
1070	0, 0,
1071	width, height);
1072	}
1073
1074	ret = true;
1075	}
1076
1077	free (kernel);
1078	free (params);
1079	XRenderFreePicture (dpy, src);
1080	XRenderFreePicture (dpy, dst);
1081	#endif
1082	return ret;
1083	}
1084
1085	bool
1086	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1087	{
1088	bool ret = false;
1089
1090	if (bg_flags & BG_TINT_BITAND)
1091	{
1092	XGCValues gcv;
1093	GC gc;
1094
1095	/* In this case we can tint image server-side getting significant
1096	* performance improvements, as we eliminate XImage transfer
1097	*/
1098	gcv.foreground = Pixel (tint);
1099	gcv.function = GXand;
1100	gcv.fill_style = FillSolid;
1101	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1102	if (gc)
1103	{
1104	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1105	ret = true;
1106	XFreeGC (dpy, gc);
1107	}
1108	}
1109	else
1110	{
1111	# if XRENDER
1112	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1113
1114	if (bg_flags & BG_TINT_SET)
1115	tint.get (c);
1116
1117	if (shade <= 100)
1118	{
1119	c.r = c.r * shade / 100;
1120	c.g = c.g * shade / 100;
1121	c.b = c.b * shade / 100;
1122	}
1123	else
1124	{
1125	c.r = c.r * (200 - shade) / 100;
1126	c.g = c.g * (200 - shade) / 100;
1127	c.b = c.b * (200 - shade) / 100;
1128	}
1129
1130	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1131	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1132	XRenderPictureAttributes pa;
1133
1134	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1135
1136	pa.repeat = True;
1137
1138	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1139	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1140	XFreePixmap (dpy, overlay_pmap);
1141
1142	pa.component_alpha = True;
1143	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1144	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1145	XFreePixmap (dpy, mask_pmap);
1146
1147	XRenderColor mask_c;
1148
1149	mask_c.alpha = 0xffff;
1150	mask_c.red =
1151	mask_c.green =
1152	mask_c.blue = 0;
1153	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1154
1155	mask_c.alpha = 0;
1156	mask_c.red = 0xffff - c.r;
1157	mask_c.green = 0xffff - c.g;
1158	mask_c.blue = 0xffff - c.b;
1159	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1160	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1161
1162	if (shade > 100)
1163	{
1164	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1165	mask_c.alpha = 0;
1166	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1167
1168	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1169	}
1170
1171	ret = true;
1172
1173	XRenderFreePicture (dpy, mask_pic);
1174	XRenderFreePicture (dpy, overlay_pic);
1175	XRenderFreePicture (dpy, back_pic);
1176	# endif
1177	}
1178
1179	return ret;
1180	}
1181
1182	/*	446	/*
1183	* Builds a pixmap of the same size as the terminal window that contains	447	* Builds a pixmap of the same size as the terminal window that contains
1184	* the tiled portion of the root pixmap that is supposed to be covered by	448	* the tiled portion of the root pixmap that is supposed to be covered by
1185	* our window.	449	* our window.
1186	*/	450	*/
1187	unsigned long	451	bool
1188	rxvt_term::make_transparency_pixmap ()	452	rxvt_term::render_root_image ()
1189	{	453	{
1190	unsigned long result = 0;
1191
1192	/* root dimensions may change from call to call - but Display structure should	454	/* root dimensions may change from call to call - but Display structure should
1193	* be always up-to-date, so let's use it :	455	* be always up-to-date, so let's use it :
1194	*/	456	*/
1195	int screen = display->screen;	457	int screen = display->screen;
1196	int root_depth = DefaultDepth (dpy, screen);
1197	int root_width = DisplayWidth (dpy, screen);	458	int root_width = DisplayWidth (dpy, screen);
1198	int root_height = DisplayHeight (dpy, screen);	459	int root_height = DisplayHeight (dpy, screen);
1199	unsigned int root_pmap_width, root_pmap_height;
1200	int window_width = szHint.width;	460	int parent_width = szHint.width;
1201	int window_height = szHint.height;	461	int parent_height = szHint.height;
1202	int sx, sy;	462	int sx, sy;
1203	XGCValues gcv;
1204	GC gc;
1205		463
1206	sx = target_x;	464	sx = parent_x;
1207	sy = target_y;	465	sy = parent_y;
		466
		467	if (!root_img)
		468	return false;
1208		469
1209	/* check if we are outside of the visible part of the virtual screen : */	470	/* check if we are outside of the visible part of the virtual screen : */
1210	if (sx + window_width <= 0 || sy + window_height <= 0	471	if (sx + parent_width <= 0 || sy + parent_height <= 0
1211	|| sx >= root_width || sy >= root_height)	472	|| sx >= root_width || sy >= root_height)
1212	return 0;	473	return 0;
1213		474
1214	// validate root pixmap and get its size	475	while (sx < 0) sx += root_img->w;
1215	if (root_pixmap != None)	476	while (sy < 0) sy += root_img->h;
1216	{
1217	Window wdummy;
1218	int idummy;
1219	unsigned int udummy;
1220		477
1221	allowedxerror = -1;	478	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1222		479
1223	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	480	if (root_effects.need_blur ())
1224	root_pixmap = None;	481	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1225		482
1226	allowedxerror = 0;	483	if (root_effects.need_tint ())
1227	}	484	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1228		485
1229	Pixmap recoded_root_pmap = root_pixmap;
1230
1231	if (root_pixmap != None && root_depth != depth)
1232	{
1233	#if XRENDER
1234	if (bg_flags & BG_HAS_RENDER)
1235	{
1236	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1237
1238	XRenderPictureAttributes pa;
1239
1240	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1241	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1242
1243	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	486	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1244	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	487	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1245		488
1246	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	489	delete bg_img;
		490	bg_img = img;
1247		491
1248	XRenderFreePicture (dpy, src);
1249	XRenderFreePicture (dpy, dst);
1250	}
1251	else
1252	#endif
1253	recoded_root_pmap = None;
1254	}
1255
1256	if (recoded_root_pmap == None)
1257	return 0;
1258
1259	if (bg_pixmap == None
1260	|| bg_pmap_width != window_width
1261	|| bg_pmap_height != window_height)
1262	{
1263	if (bg_pixmap)
1264	XFreePixmap (dpy, bg_pixmap);
1265	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1266	bg_pmap_width = window_width;
1267	bg_pmap_height = window_height;
1268	}
1269
1270	/* straightforward pixmap copy */
1271	while (sx < 0) sx += root_width;
1272	while (sy < 0) sy += root_height;
1273
1274	gcv.tile = recoded_root_pmap;
1275	gcv.fill_style = FillTiled;
1276	gcv.ts_x_origin = -sx;
1277	gcv.ts_y_origin = -sy;
1278	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1279
1280	if (gc)
1281	{
1282	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1283	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1284	XFreeGC (dpy, gc);
1285
1286	if (!(bg_flags & BG_CLIENT_RENDER))
1287	{
1288	if ((bg_flags & BG_NEEDS_BLUR)
1289	&& (bg_flags & BG_HAS_RENDER_CONV))
1290	{
1291	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1292	result &= ~BG_NEEDS_BLUR;
1293	}
1294	if ((bg_flags & BG_NEEDS_TINT)
1295	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1296	{
1297	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1298	result &= ~BG_NEEDS_TINT;
1299	}
1300	} /* server side rendering completed */
1301	}
1302
1303	if (recoded_root_pmap != root_pixmap)
1304	XFreePixmap (dpy, recoded_root_pmap);
1305
1306	return result;	492	return true;
1307	}	493	}
1308		494
1309	void	495	void
1310	rxvt_term::bg_set_root_pixmap ()	496	rxvt_term::bg_set_root_pixmap ()
1311	{	497	{
1312	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	498	delete root_img;
1313	if (new_root_pixmap == None)	499	root_img = rxvt_img::new_from_root (this);
1314	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1315
1316	root_pixmap = new_root_pixmap;
1317	}	500	}
1318	# endif /* ENABLE_TRANSPARENCY */	501	# endif /* ENABLE_TRANSPARENCY */
1319		502
1320	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	503	void
1321	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1322	# endif
1323
1324	bool
1325	rxvt_term::bg_render ()	504	rxvt_term::bg_render ()
1326	{	505	{
1327	unsigned long tr_flags = 0;	506	if (bg_flags & BG_INHIBIT_RENDER)
		507	return;
1328		508
1329	bg_invalidate ();	509	bg_invalidate ();
1330	# ifdef ENABLE_TRANSPARENCY	510	# if ENABLE_TRANSPARENCY
1331	if (bg_flags & BG_IS_TRANSPARENT)	511	if (bg_flags & BG_IS_TRANSPARENT)
1332	{	512	{
1333	/* we need to re-generate transparency pixmap in that case ! */	513	/* we need to re-generate transparency pixmap in that case ! */
1334	tr_flags = make_transparency_pixmap ();	514	if (render_root_image ())
1335	if (tr_flags == 0)
1336	return false;
1337	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1338	bg_flags |= BG_IS_VALID;	515	bg_flags |= BG_IS_VALID;
1339	}	516	}
1340	# endif	517	# endif
1341		518
1342	# ifdef BG_IMAGE_FROM_FILE	519	# if BG_IMAGE_FROM_FILE
1343	if ((bg_flags & BG_IS_FROM_FILE)	520	if (fimage.img)
1344	|| (tr_flags & BG_EFFECTS_FLAGS))
1345	{	521	{
1346	if (render_image (tr_flags))	522	if (render_image (fimage))
1347	bg_flags |= BG_IS_VALID;	523	bg_flags |= BG_IS_VALID;
1348	}	524	}
1349	# endif	525	# endif
1350		526
1351	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1352	XImage *result = NULL;
1353
1354	if (tr_flags && !(bg_flags & BG_IS_VALID))
1355	{
1356	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1357	}
1358
1359	if (result)
1360	{
1361	/* our own client-side tinting */
1362	if (tr_flags & BG_NEEDS_TINT)
1363	{
1364	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1365	if (bg_flags & BG_TINT_SET)
1366	tint.get (c);
1367	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1368	}
1369
1370	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1371
1372	if (gc)
1373	{
1374	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1375
1376	XFreeGC (dpy, gc);
1377	bg_flags |= BG_IS_VALID;
1378	}
1379
1380	XDestroyImage (result);
1381	}
1382	# endif
1383
1384	if (!(bg_flags & BG_IS_VALID))	527	if (!(bg_flags & BG_IS_VALID))
1385	{	528	{
1386	if (bg_pixmap != None)	529	delete bg_img;
1387	{	530	bg_img = 0;
1388	XFreePixmap (dpy, bg_pixmap);
1389	bg_pixmap = None;
1390	}
1391	}	531	}
1392		532
1393	scr_recolour (false);	533	scr_recolour (false);
1394	bg_flags |= BG_NEEDS_REFRESH;	534	bg_flags |= BG_NEEDS_REFRESH;
1395		535
1396	bg_valid_since = ev::now ();	536	bg_valid_since = ev::now ();
1397
1398	return true;
1399	}	537	}
1400		538
1401	void	539	void
1402	rxvt_term::bg_init ()	540	rxvt_term::bg_init ()
1403	{	541	{
1404	#ifdef ENABLE_TRANSPARENCY	542	#if ENABLE_TRANSPARENCY
1405	shade = 100;	543	if (option (Opt_transparent))
		544	{
		545	bg_set_transparent ();
		546
		547	if (rs [Rs_blurradius])
		548	root_effects.set_blur (rs [Rs_blurradius]);
		549
		550	if (ISSET_PIXCOLOR (Color_tint))
		551	root_effects.set_tint (pix_colors_focused [Color_tint]);
		552
		553	if (rs [Rs_shade])
		554	root_effects.set_shade (rs [Rs_shade]);
		555
		556	bg_set_root_pixmap ();
		557	XSelectInput (dpy, display->root, PropertyChangeMask);
		558	rootwin_ev.start (display, display->root);
		559	}
1406	#endif	560	#endif
1407		561
1408	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	562	#if BG_IMAGE_FROM_FILE
1409	#if XRENDER	563	if (rs[Rs_backgroundPixmap])
1410	int major, minor;
1411	if (XRenderQueryVersion (dpy, &major, &minor))
1412	bg_flags |= BG_HAS_RENDER;
1413	XFilters *filters = XRenderQueryFilters (dpy, vt);
1414	if (filters)
1415	{	564	{
1416	for (int i = 0; i < filters->nfilter; i++)	565	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1417	if (!strcmp (filters->filter[i], FilterConvolution))	566	if (!bg_window_position_sensitive ())
1418	bg_flags |= BG_HAS_RENDER_CONV;	567	update_background ();
1419
1420	XFree (filters);
1421	}	568	}
1422	#endif	569	#endif
1423	}	570	}
1424		571
		572	void
		573	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		574	{
		575	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		576
		577	if (tint_set)
		578	tint.get (c);
		579
		580	if (shade > 100)
		581	{
		582	c.r = c.r * (200 - shade) / 100;
		583	c.g = c.g * (200 - shade) / 100;
		584	c.b = c.b * (200 - shade) / 100;
		585	}
		586	else
		587	{
		588	c.r = c.r * shade / 100;
		589	c.g = c.g * shade / 100;
		590	c.b = c.b * shade / 100;
		591	}
		592
		593	img->contrast (c.r, c.g, c.b, c.a);
		594
		595	if (shade > 100)
		596	{
		597	c.a = 0xffff;
		598	c.r =
		599	c.g =
		600	c.b = 0xffff * (shade - 100) / 100;
		601	img->brightness (c.r, c.g, c.b, c.a);
		602	}
		603	}
		604
1425	#endif /* HAVE_BG_PIXMAP */	605	#endif /* HAVE_BG_PIXMAP */
1426
1427	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1428	/* taken from aterm-0.4.2 */
1429
1430	static void
1431	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1432	{
1433	int sh_r, sh_g, sh_b;
1434	uint32_t mask_r, mask_g, mask_b;
1435	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1436	rgba low;
1437	rgba high;
1438	int i;
1439	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1440
1441	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1442
1443	/* for convenience */
1444	mask_r = visual->red_mask;
1445	mask_g = visual->green_mask;
1446	mask_b = visual->blue_mask;
1447
1448	/* boring lookup table pre-initialization */
1449	switch (ximage->depth)
1450	{
1451	case 15:
1452	if ((mask_r != 0x7c00) ||
1453	(mask_g != 0x03e0) ||
1454	(mask_b != 0x001f))
1455	return;
1456	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1457	lookup_r = lookup;
1458	lookup_g = lookup+32;
1459	lookup_b = lookup+32+32;
1460	sh_r = 10;
1461	sh_g = 5;
1462	sh_b = 0;
1463	break;
1464	case 16:
1465	if ((mask_r != 0xf800) ||
1466	(mask_g != 0x07e0) ||
1467	(mask_b != 0x001f))
1468	return;
1469	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1470	lookup_r = lookup;
1471	lookup_g = lookup+32;
1472	lookup_b = lookup+32+64;
1473	sh_r = 11;
1474	sh_g = 5;
1475	sh_b = 0;
1476	break;
1477	case 24:
1478	if ((mask_r != 0xff0000) ||
1479	(mask_g != 0x00ff00) ||
1480	(mask_b != 0x0000ff))
1481	return;
1482	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1483	lookup_r = lookup;
1484	lookup_g = lookup+256;
1485	lookup_b = lookup+256+256;
1486	sh_r = 16;
1487	sh_g = 8;
1488	sh_b = 0;
1489	break;
1490	case 32:
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	default:
1504	return; /* we do not support this color depth */
1505	}
1506
1507	/* prepare limits for color transformation (each channel is handled separately) */
1508	if (shade > 100)
1509	{
1510	shade = 200 - shade;
1511
1512	high.r = c.r * shade / 100;
1513	high.g = c.g * shade / 100;
1514	high.b = c.b * shade / 100;
1515
1516	low.r = 65535 * (100 - shade) / 100;
1517	low.g = 65535 * (100 - shade) / 100;
1518	low.b = 65535 * (100 - shade) / 100;
1519	}
1520	else
1521	{
1522	high.r = c.r * shade / 100;
1523	high.g = c.g * shade / 100;
1524	high.b = c.b * shade / 100;
1525
1526	low.r = low.g = low.b = 0;
1527	}
1528
1529	/* fill our lookup tables */
1530	for (i = 0; i <= mask_r>>sh_r; i++)
1531	{
1532	uint32_t tmp;
1533	tmp = i * high.r;
1534	tmp += (mask_r>>sh_r) * low.r;
1535	lookup_r[i] = (tmp/65535)<<sh_r;
1536	}
1537	for (i = 0; i <= mask_g>>sh_g; i++)
1538	{
1539	uint32_t tmp;
1540	tmp = i * high.g;
1541	tmp += (mask_g>>sh_g) * low.g;
1542	lookup_g[i] = (tmp/65535)<<sh_g;
1543	}
1544	for (i = 0; i <= mask_b>>sh_b; i++)
1545	{
1546	uint32_t tmp;
1547	tmp = i * high.b;
1548	tmp += (mask_b>>sh_b) * low.b;
1549	lookup_b[i] = (tmp/65535)<<sh_b;
1550	}
1551
1552	/* apply table to input image (replacing colors by newly calculated ones) */
1553	if (ximage->bits_per_pixel == 32
1554	&& (ximage->depth == 24 || ximage->depth == 32)
1555	&& ximage->byte_order == host_byte_order)
1556	{
1557	uint32_t *p1, *pf, *p, *pl;
1558	p1 = (uint32_t *) ximage->data;
1559	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1560
1561	while (p1 < pf)
1562	{
1563	p = p1;
1564	pl = p1 + ximage->width;
1565	for (; p < pl; p++)
1566	{
1567	*p = lookup_r[(*p & 0xff0000) >> 16] |
1568	lookup_g[(*p & 0x00ff00) >> 8] |
1569	lookup_b[(*p & 0x0000ff)] |
1570	(*p & 0xff000000);
1571	}
1572	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1573	}
1574	}
1575	else
1576	{
1577	for (int y = 0; y < ximage->height; y++)
1578	for (int x = 0; x < ximage->width; x++)
1579	{
1580	unsigned long pixel = XGetPixel (ximage, x, y);
1581	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1582	lookup_g[(pixel & mask_g) >> sh_g] |
1583	lookup_b[(pixel & mask_b) >> sh_b];
1584	XPutPixel (ximage, x, y, pixel);
1585	}
1586	}
1587
1588	free (lookup);
1589	}
1590	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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