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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.164 by sf-exg, Sun Aug 14 22:01:25 2011 UTC vs.
Revision 1.247 by sf-exg, Sat Dec 29 18:12:53 2012 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
20	* You should have received a copy of the GNU General Public License	20	* You should have received a copy of the GNU General Public License
21	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
24		24
25	#include <cmath>
26	#include "../config.h" /* NECESSARY */	25	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	26	#include "rxvt.h" /* NECESSARY */
28		27
29	#if XRENDER
30	# include <X11/extensions/Xrender.h>
31	#endif
32
33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"
35	#endif
36
37	/*
38	* Pixmap geometry string interpretation :
39	* Each geometry string contains zero or one scale/position
40	* adjustment and may optionally be followed by a colon and one or more
41	* colon-delimited pixmap operations.
42	* The following table shows the valid geometry strings and their
43	* effects on the background image :
44	*
45	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
46	* W and H are percentages of the terminal window size.
47	* X and Y are also percentages; e.g., +50+50 centers
48	* the image in the window.
49	*
50	* Pixmap Operations : (should be prepended by a colon)
51	*/
52
53	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
54	void	30	void
55	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
56	{	32	{
57	#ifdef HAVE_AFTERIMAGE	33	# if BG_IMAGE_FROM_ROOT
58	if (original_asim)	34	delete root_img;
59	safe_asimage_destroy (original_asim);	35	root_img = 0;
60	if (asv)
61	destroy_asvisual (asv, 0);
62	if (asimman)
63	destroy_image_manager (asimman, 0);
64	#endif	36	# endif
65		37
66	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
67	if (pixbuf)	39	fimage.destroy ();
68	g_object_unref (pixbuf);
69	#endif	40	# endif
70		41
71	if (bg_pixmap)	42	delete bg_img;
72	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
73	}	44	}
74		45
75	bool	46	bool
76	rxvt_term::bg_set_position (int x, int y)	47	rxvt_term::bg_window_size_sensitive ()
77	{	48	{
		49	# if BG_IMAGE_FROM_ROOT
		50	if (option (Opt_transparent))
		51	return true;
		52	# endif
78		53
79	if (target_x != x	54	# if BG_IMAGE_FROM_FILE
80	|| target_y != y)	55	if (fimage.img)
81	{	56	{
82	target_x = x;	57	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
83	target_y = y;	58	|| fimage.img->w > szHint.width
		59	|| fimage.img->h > szHint.height)
84	return true;	60	return true;
85	}	61	}
		62	# endif
		63
86	return false;	64	return false;
87	}	65	}
88		66
89	bool	67	bool
90	rxvt_term::bg_window_size_sensitive ()	68	rxvt_term::bg_window_position_sensitive ()
91	{	69	{
92	# ifdef ENABLE_TRANSPARENCY	70	# if BG_IMAGE_FROM_ROOT
93	if (bg_flags & BG_IS_TRANSPARENT)	71	if (option (Opt_transparent))
94	return true;	72	return true;
95	# endif	73	# endif
96		74
97	# ifdef BG_IMAGE_FROM_FILE	75	# if BG_IMAGE_FROM_FILE
98	if (bg_flags & BG_IS_FROM_FILE)	76	if (fimage.img)
99	{	77	{
100	if (bg_flags & BG_IS_SIZE_SENSITIVE)	78	if (fimage.flags & IM_ROOT_ALIGN)
101	return true;	79	return true;
102	}	80	}
103	# endif	81	# endif
104		82
105	return false;	83	return false;
106	}	84	}
107		85
108	bool
109	rxvt_term::bg_window_position_sensitive ()
110	{
111	# ifdef ENABLE_TRANSPARENCY
112	if (bg_flags & BG_IS_TRANSPARENT)
113	return true;
114	# endif
115
116	# ifdef BG_IMAGE_FROM_FILE	86	# if BG_IMAGE_FROM_FILE
117	if (bg_flags & BG_IS_FROM_FILE)
118	{
119	if (bg_flags & BG_ROOT_ALIGN)
120	return true;
121	}
122	# endif
123
124	return false;
125	}
126
127	# ifdef BG_IMAGE_FROM_FILE
128	static inline bool
129	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
130	{
131	if (geom_flags & flag)
132	{
133	if (new_value > 1000)
134	new_value = 1000;
135	if (new_value != scale)
136	{
137	scale = new_value;
138	return true;
139	}
140	}
141	return false;
142	}
143
144	static inline bool
145	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
146	{
147	if (geom_flags & flag)
148	{
149	if (new_value < -100)
150	new_value = -100;
151	else if (new_value > 200)
152	new_value = 200;
153	if (new_value != align)
154	{
155	align = new_value;
156	return true;
157	}
158	}
159	return false;
160	}
161
162	static inline int	87	static inline int
163	make_align_position (int align, int window_size, int image_size)	88	make_align_position (int align, int window_size, int image_size)
164	{	89	{
165	int diff = window_size - image_size;
166	int smaller = min (image_size, window_size);
167
168	if (align >= 0 && align <= 100)	90	if (align >= 0 && align <= 100)
169	return diff * align / 100;	91	return lerp (0, window_size - image_size, align);
170	else if (align > 100 && align <= 200)	92	else if (align > 100)
171	return ((align - 100) * smaller / 100) + window_size - smaller;	93	return lerp (window_size - image_size, window_size, align - 100);
172	else if (align >= -100 && align < 0)	94	else
173	return ((align + 100) * smaller / 100) - image_size;	95	return lerp (-image_size, 0, align + 100);
174	return 0;
175	}	96	}
176		97
177	static inline int	98	static void
178	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	99	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
179	{	100	{
180	int src_pos = 0;	101	if (!strcasecmp (style, "tiled"))
181	dst_pos = pos;
182	dst_size = size;
183	if (pos < 0)
184	{
185	src_pos = -pos;
186	dst_pos = 0;
187	dst_size += pos;
188	}	102	{
189		103	flags = IM_TILE;
190	if (dst_pos + dst_size > target_size)	104	w = h = noScale;
191	dst_size = target_size - dst_pos;	105	x = y = 0;
192	return src_pos;	106	}
		107	else if (!strcasecmp (style, "aspect-stretched"))
		108	{
		109	flags = IM_KEEP_ASPECT;
		110	w = h = windowScale;
		111	x = y = centerAlign;
		112	}
		113	else if (!strcasecmp (style, "stretched"))
		114	{
		115	flags = 0;
		116	w = h = windowScale;
		117	x = y = centerAlign;
		118	}
		119	else if (!strcasecmp (style, "centered"))
		120	{
		121	flags = 0;
		122	w = h = noScale;
		123	x = y = centerAlign;
		124	}
		125	else if (!strcasecmp (style, "root-tiled"))
		126	{
		127	flags = IM_TILE|IM_ROOT_ALIGN;
		128	w = h = noScale;
		129	x = y = 0;
		130	}
193	}	131	}
194		132
195	bool	133	bool
196	rxvt_term::bg_set_geometry (const char *geom, bool update)	134	rxvt_image::set_geometry (const char *geom, bool update)
197	{	135	{
198	bool changed = false;	136	bool changed = false;
199	int geom_flags = 0;	137	int geom_flags = 0;
200	int x = 0, y = 0;	138	int x = h_align;
		139	int y = v_align;
201	unsigned int w = 0, h = 0;	140	unsigned int w = h_scale;
202	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	141	unsigned int h = v_scale;
		142	uint8_t new_flags = 0;
203		143
204	if (geom == NULL)	144	if (geom == NULL)
205	return false;	145	return false;
206		146
207	if (geom[0])	147	if (geom[0])
208	{	148	{
209	char **arr = rxvt_strsplit (':', geom);	149	char **arr = rxvt_strsplit (':', geom);
210		150
211	for (int i = 0; arr[i]; i++)	151	for (int i = 0; arr[i]; i++)
212	{	152	{
213	if (!strcasecmp (arr[i], "style=tiled"))	153	if (!strncasecmp (arr[i], "style=", 6))
214	{	154	{
215	new_flags = BG_TILE;	155	parse_style (arr[i] + 6, x, y, w, h, new_flags);
216	w = h = noScale;
217	x = y = 0;
218	geom_flags = WidthValue|HeightValue|XValue|YValue;	156	geom_flags = WidthValue|HeightValue|XValue|YValue;
219	}	157	}
220	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
221	{
222	new_flags = BG_PROP_SCALE;
223	w = h = windowScale;
224	x = y = centerAlign;
225	geom_flags = WidthValue|HeightValue|XValue|YValue;
226	}
227	else if (!strcasecmp (arr[i], "style=stretched"))
228	{
229	new_flags = 0;
230	w = h = windowScale;
231	geom_flags = WidthValue|HeightValue;
232	}
233	else if (!strcasecmp (arr[i], "style=centered"))
234	{
235	new_flags = 0;
236	w = h = noScale;
237	x = y = centerAlign;
238	geom_flags = WidthValue|HeightValue|XValue|YValue;
239	}
240	else if (!strcasecmp (arr[i], "style=root-tiled"))
241	{
242	new_flags = BG_TILE|BG_ROOT_ALIGN;
243	w = h = noScale;
244	geom_flags = WidthValue|HeightValue;
245	}
246	else if (!strcasecmp (arr[i], "op=tile"))	158	else if (!strcasecmp (arr[i], "op=tile"))
247	new_flags |= BG_TILE;	159	new_flags |= IM_TILE;
248	else if (!strcasecmp (arr[i], "op=pscale"))	160	else if (!strcasecmp (arr[i], "op=keep-aspect"))
249	new_flags |= BG_PROP_SCALE;	161	new_flags |= IM_KEEP_ASPECT;
250	else if (!strcasecmp (arr[i], "op=root"))	162	else if (!strcasecmp (arr[i], "op=root-align"))
251	new_flags |= BG_ROOT_ALIGN;	163	new_flags |= IM_ROOT_ALIGN;
252		164
253	// deprecated	165	// deprecated
254	else if (!strcasecmp (arr[i], "tile"))	166	else if (!strcasecmp (arr[i], "tile"))
255	{	167	{
256	new_flags |= BG_TILE;	168	new_flags |= IM_TILE;
257	w = h = noScale;	169	w = h = noScale;
258	geom_flags |= WidthValue|HeightValue;	170	geom_flags |= WidthValue|HeightValue;
259	}	171	}
260	else if (!strcasecmp (arr[i], "propscale"))	172	else if (!strcasecmp (arr[i], "propscale"))
261	{	173	{
262	new_flags |= BG_PROP_SCALE;	174	new_flags |= IM_KEEP_ASPECT;
		175	w = h = windowScale;
		176	geom_flags |= WidthValue|HeightValue;
263	}	177	}
264	else if (!strcasecmp (arr[i], "hscale"))	178	else if (!strcasecmp (arr[i], "hscale"))
265	{	179	{
266	new_flags |= BG_TILE;	180	new_flags |= IM_TILE;
267	w = windowScale;	181	w = windowScale;
268	h = noScale;	182	h = noScale;
269	geom_flags |= WidthValue|HeightValue;	183	geom_flags |= WidthValue|HeightValue;
270	}	184	}
271	else if (!strcasecmp (arr[i], "vscale"))	185	else if (!strcasecmp (arr[i], "vscale"))
272	{	186	{
273	new_flags |= BG_TILE;	187	new_flags |= IM_TILE;
274	h = windowScale;	188	h = windowScale;
275	w = noScale;	189	w = noScale;
276	geom_flags |= WidthValue|HeightValue;	190	geom_flags |= WidthValue|HeightValue;
277	}	191	}
278	else if (!strcasecmp (arr[i], "scale"))	192	else if (!strcasecmp (arr[i], "scale"))
…		…
286	x = y = centerAlign;	200	x = y = centerAlign;
287	geom_flags |= WidthValue|HeightValue|XValue|YValue;	201	geom_flags |= WidthValue|HeightValue|XValue|YValue;
288	}	202	}
289	else if (!strcasecmp (arr[i], "root"))	203	else if (!strcasecmp (arr[i], "root"))
290	{	204	{
291	new_flags |= BG_TILE|BG_ROOT_ALIGN;	205	new_flags |= IM_TILE|IM_ROOT_ALIGN;
292	w = h = noScale;	206	w = h = noScale;
293	geom_flags |= WidthValue|HeightValue;	207	geom_flags |= WidthValue|HeightValue;
294	}	208	}
295		209
296	else	210	else
297	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);	211	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
298	} /* done parsing ops */	212	} /* done parsing ops */
299		213
300	rxvt_free_strsplit (arr);	214	rxvt_free_strsplit (arr);
301	}	215	}
		216
		217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
302		218
303	if (!update)	219	if (!update)
304	{	220	{
305	if (!(geom_flags & XValue))	221	if (!(geom_flags & XValue))
306	x = y = defaultAlign;	222	x = y = defaultAlign;
…		…
311	w = h = defaultScale;	227	w = h = defaultScale;
312	else if (!(geom_flags & HeightValue))	228	else if (!(geom_flags & HeightValue))
313	h = w;	229	h = w;
314	else if (!(geom_flags & WidthValue))	230	else if (!(geom_flags & WidthValue))
315	w = h;	231	w = h;
316
317	geom_flags |= WidthValue|HeightValue|XValue|YValue;
318	}
319
320	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
321	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
322	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
323	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
324
325	if (new_flags != bg_flags)
326	{	232	}
		233
		234	clamp_it (x, -100, 200);
		235	clamp_it (y, -100, 200);
		236
		237	if (flags != new_flags
		238	|| h_scale != w
		239	|| v_scale != h
		240	|| h_align != x
		241	|| v_align != y)
		242	{
327	bg_flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
328	changed = true;	248	changed = true;
329	}	249	}
330		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
331	return changed;	256	return changed;
332	}	257	}
333		258
334	void	259	void
335	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)
336	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
337	int target_width = szHint.width;	264	int parent_width = szHint.width;
338	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);
339		268
340	w = h_scale * target_width / 100;	269	w = h_scale * parent_width / 100;
341	h = v_scale * target_height / 100;	270	h = v_scale * parent_height / 100;
342		271
343	if (bg_flags & BG_PROP_SCALE)	272	if (image.flags & IM_KEEP_ASPECT)
344	{	273	{
345	float scale = (float)w / image_width;	274	float scale = (float)w / image_width;
346	min_it (scale, (float)h / image_height);	275	min_it (scale, (float)h / image_height);
347	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
348	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
349	}	278	}
350		279
351	if (!w) w = image_width;	280	if (!w) w = image_width;
352	if (!h) h = image_height;	281	if (!h) h = image_height;
353		282
354	if (bg_flags & BG_ROOT_ALIGN)	283	if (image.flags & IM_ROOT_ALIGN)
355	{	284	{
356	x = -target_x;	285	x = -parent_x;
357	y = -target_y;	286	y = -parent_y;
358	}	287	}
359	else	288	else
360	{	289	{
361	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
362	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
363	}
364
365	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
366	if (!(bg_flags & BG_TILE)
367	|| h_scale || v_scale
368	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
369	|| w > target_width || h > target_height)
370	bg_flags |= BG_IS_SIZE_SENSITIVE;
371	}
372
373	# ifdef HAVE_AFTERIMAGE
374	bool
375	rxvt_term::render_image (unsigned long tr_flags)
376	{
377	init_asv ();
378
379	ASImage *background = NULL;
380	ARGB32 background_tint = TINT_LEAVE_SAME;
381
382	# ifdef ENABLE_TRANSPARENCY
383	if (tr_flags)
384	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
385
386	if (tr_flags & BG_NEEDS_TINT)
387	{	292	}
388	ShadingInfo as_shade;	293	}
389	as_shade.shading = shade;
390		294
391	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
392	if (bg_flags & BG_TINT_SET)	296	rxvt_term::render_image (rxvt_image &image)
393	tint.get (c);	297	{
394	as_shade.tintColor.red = c.r;
395	as_shade.tintColor.green = c.g;
396	as_shade.tintColor.blue = c.b;
397
398	background_tint = shading2tint32 (&as_shade);
399	}
400
401	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
402	{
403	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
404	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
405	100, ASIMAGE_QUALITY_DEFAULT);
406	if (tmp)
407	{
408	destroy_asimage (&background);
409	background = tmp;
410	}
411	}
412	# endif
413
414	ASImage *result = 0;
415
416	int target_width = szHint.width;	298	int parent_width = szHint.width;
417	int target_height = szHint.height;	299	int parent_height = szHint.height;
418	int new_pmap_width = target_width;
419	int new_pmap_height = target_height;
420		300
421	int x = 0;	301	int x = 0;
422	int y = 0;	302	int y = 0;
423	int w = 0;	303	int w = 0;
424	int h = 0;	304	int h = 0;
425		305
426	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
427	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
428		307
429	if (!original_asim	308	if (!(image.flags & IM_ROOT_ALIGN)
430	|| (!(bg_flags & BG_ROOT_ALIGN)
431	&& (x >= target_width	309	&& (x >= parent_width
432	|| y >= target_height	310	|| y >= parent_height
433	|| (x + w <= 0)	311	|| x + w <= 0
434	|| (y + h <= 0))))	312	|| y + h <= 0))
435	{	313	return false;
436	if (background)
437	{
438	new_pmap_width = background->width;
439	new_pmap_height = background->height;
440	result = background;
441		314
442	if (background_tint != TINT_LEAVE_SAME)	315	rxvt_img *img = image.img->scale (w, h);
443	{	316
444	ASImage *tmp = tile_asimage (asv, background, 0, 0,	317	if (image.flags & IM_TILE)
445	target_width, target_height, background_tint,	318	img->repeat_mode (RepeatNormal);
446	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
447	if (tmp)
448	result = tmp;
449	}
450	}
451	else
452	new_pmap_width = new_pmap_height = 0;
453	}
454	else	319	else
455	{	320	img->repeat_mode (RepeatNone);
456	result = original_asim;	321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
457		322
458	if ((w != original_asim->width)	323	if (bg_flags & BG_IS_VALID)
459	|| (h != original_asim->height))	324	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
460	{
461	result = scale_asimage (asv, original_asim,
462	w, h,
463	background ? ASA_ASImage : ASA_XImage,
464	100, ASIMAGE_QUALITY_DEFAULT);
465	}
466		325
467	if (background == NULL)	326	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
468	{	327	img->convert_format (format, pix_colors [Color_bg])->replace (img);
469	if (bg_flags & BG_TILE)
470	{
471	/* if tiling - pixmap has to be sized exactly as the image,
472	but there is no need to make it bigger than the window! */
473	new_pmap_width = min (result->width, target_width);
474	new_pmap_height = min (result->height, target_height);
475		328
476	/* we also need to tile our image in both directions */	329	delete bg_img;
477	ASImage *tmp = tile_asimage (asv, result,	330	bg_img = img;
478	(int)result->width - x,
479	(int)result->height - y,
480	new_pmap_width,
481	new_pmap_height,
482	TINT_LEAVE_SAME, ASA_XImage,
483	100, ASIMAGE_QUALITY_DEFAULT);
484	if (tmp)
485	{
486	if (result != original_asim)
487	destroy_asimage (&result);
488		331
489	result = tmp;
490	}
491	}
492	}
493	else
494	{
495	/* if blending background and image - pixmap has to be sized same as target window */
496	ASImageLayer *layers = create_image_layers (2);
497
498	layers[0].im = background;
499	layers[0].clip_width = target_width;
500	layers[0].clip_height = target_height;
501	layers[0].tint = background_tint;
502	layers[1].im = result;
503
504	if (bg_flags & BG_TILE)
505	{
506	/* tile horizontally */
507	while (x > 0) x -= (int)result->width;
508	layers[1].dst_x = x;
509	layers[1].clip_width = result->width+target_width;
510	}
511	else
512	{
513	/* clip horizontally */
514	layers[1].dst_x = x;
515	layers[1].clip_width = result->width;
516	}
517
518	if (bg_flags & BG_TILE)
519	{
520	while (y > 0) y -= (int)result->height;
521	layers[1].dst_y = y;
522	layers[1].clip_height = result->height + target_height;
523	}
524	else
525	{
526	layers[1].dst_y = y;
527	layers[1].clip_height = result->height;
528	}
529
530	if (rs[Rs_blendtype])
531	{
532	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
533	if (layers[1].merge_scanlines == NULL)
534	layers[1].merge_scanlines = alphablend_scanlines;
535	}
536
537	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
538	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
539
540	if (tmp)
541	{
542	if (result != original_asim)
543	destroy_asimage (&result);
544
545	result = tmp;
546	}
547
548	free (layers);
549	}
550	}
551
552	bool ret = false;
553
554	if (result)
555	{
556	XGCValues gcv;
557	GC gc;
558
559	/* create Pixmap */
560	if (bg_pixmap == None
561	|| bg_pmap_width != new_pmap_width
562	|| bg_pmap_height != new_pmap_height)
563	{
564	if (bg_pixmap)
565	XFreePixmap (dpy, bg_pixmap);
566	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
567	bg_pmap_width = new_pmap_width;
568	bg_pmap_height = new_pmap_height;
569	}
570	/* fill with background color (if result's not completely overlapping it) */
571	gcv.foreground = pix_colors[Color_bg];
572	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
573
574	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
575	int dst_width = result->width, dst_height = result->height;
576	if (background == NULL)
577	{
578	if (!(bg_flags & BG_TILE))
579	{
580	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
581	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
582	}
583
584	if (dst_x > 0 || dst_y > 0
585	|| dst_x + dst_width < new_pmap_width
586	|| dst_y + dst_height < new_pmap_height)
587	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
588	}
589
590	/* put result on pixmap */
591	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
592	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
593
594	if (result != background && result != original_asim)
595	destroy_asimage (&result);
596
597	XFreeGC (dpy, gc);
598
599	ret = true;
600	}
601
602	if (background)
603	destroy_asimage (&background);
604
605	return ret;
606	}
607	# endif /* HAVE_AFTERIMAGE */
608
609	# ifdef HAVE_PIXBUF
610	bool
611	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
612	int src_x, int src_y, int dst_x, int dst_y,
613	unsigned int width, unsigned int height)
614	{
615	XImage *ximage;
616	char *data, *line;
617	int bytes_per_pixel;
618	int width_r, width_g, width_b;
619	int sh_r, sh_g, sh_b;
620	int rowstride;
621	int channels;
622	unsigned char *row;
623
624	if (visual->c_class != TrueColor)
625	return false;
626
627	if (depth == 24 || depth == 32)
628	bytes_per_pixel = 4;
629	else if (depth == 15 || depth == 16)
630	bytes_per_pixel = 2;
631	else
632	return false;
633
634	width_r = ecb_popcount32 (visual->red_mask);
635	width_g = ecb_popcount32 (visual->green_mask);
636	width_b = ecb_popcount32 (visual->blue_mask);
637
638	if (width_r > 8 || width_g > 8 || width_b > 8)
639	return false;
640
641	sh_r = ecb_ctz32 (visual->red_mask);
642	sh_g = ecb_ctz32 (visual->green_mask);
643	sh_b = ecb_ctz32 (visual->blue_mask);
644
645	if (width > INT_MAX / height / bytes_per_pixel)
646	return false;
647
648	data = (char *)malloc (width * height * bytes_per_pixel);
649	if (!data)
650	return false;
651
652	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
653	width, height, bytes_per_pixel * 8, 0);
654	if (!ximage)
655	{
656	free (data);
657	return false;
658	}
659
660	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
661
662	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
663	channels = gdk_pixbuf_get_n_channels (pixbuf);
664	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
665	line = data;
666
667	for (int y = 0; y < height; y++)
668	{
669	for (int x = 0; x < width; x++)
670	{
671	unsigned char *pixel = row + x * channels;
672	uint32_t value;
673
674	value = ((pixel[0] >> (8 - width_r)) << sh_r)
675	| ((pixel[1] >> (8 - width_g)) << sh_g)
676	| ((pixel[2] >> (8 - width_b)) << sh_b);
677
678	if (bytes_per_pixel == 4)
679	((uint32_t *)line)[x] = value;
680	else
681	((uint16_t *)line)[x] = value;
682	}
683
684	row += rowstride;
685	line += ximage->bytes_per_line;
686	}
687
688	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
689	XDestroyImage (ximage);
690	return true;	332	return true;
691	}	333	}
692		334
693	bool	335	rxvt_image::rxvt_image ()
694	rxvt_term::render_image (unsigned long tr_flags)
695	{	336	{
696	if (!pixbuf)	337	alpha = 0xffff;
697	return false;	338	flags = 0;
		339	h_scale =
		340	v_scale = defaultScale;
		341	h_align =
		342	v_align = defaultAlign;
698		343
699	if (tr_flags	344	img = 0;
700	&& !(bg_flags & BG_HAS_RENDER))
701	return false;
702
703	GdkPixbuf *result;
704
705	int image_width = gdk_pixbuf_get_width (pixbuf);
706	int image_height = gdk_pixbuf_get_height (pixbuf);
707
708	int target_width = szHint.width;
709	int target_height = szHint.height;
710	int new_pmap_width = target_width;
711	int new_pmap_height = target_height;
712
713	int x = 0;
714	int y = 0;
715	int w = 0;
716	int h = 0;
717
718	get_image_geometry (image_width, image_height, w, h, x, y);
719
720	if (!(bg_flags & BG_ROOT_ALIGN)
721	&& (x >= target_width
722	|| y >= target_height
723	|| (x + w <= 0)
724	|| (y + h <= 0)))
725	return false;
726
727	result = pixbuf;
728
729	if ((w != image_width)
730	|| (h != image_height))
731	{
732	result = gdk_pixbuf_scale_simple (pixbuf,
733	w, h,
734	GDK_INTERP_BILINEAR);
735	}
736
737	if (!result)
738	return false;
739
740	bool ret = false;
741
742	XGCValues gcv;
743	GC gc;
744	Pixmap root_pmap;
745
746	image_width = gdk_pixbuf_get_width (result);
747	image_height = gdk_pixbuf_get_height (result);
748
749	if (tr_flags)
750	{
751	root_pmap = bg_pixmap;
752	bg_pixmap = None;
753	}
754	else
755	{
756	if (bg_flags & BG_TILE)
757	{
758	new_pmap_width = min (image_width, target_width);
759	new_pmap_height = min (image_height, target_height);
760	}
761	}
762
763	if (bg_pixmap == None
764	|| bg_pmap_width != new_pmap_width
765	|| bg_pmap_height != new_pmap_height)
766	{
767	if (bg_pixmap)
768	XFreePixmap (dpy, bg_pixmap);
769	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
770	bg_pmap_width = new_pmap_width;
771	bg_pmap_height = new_pmap_height;
772	}
773
774	gcv.foreground = pix_colors[Color_bg];
775	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
776
777	if (gc)
778	{
779	if (bg_flags & BG_TILE)
780	{
781	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
782	pixbuf_to_pixmap (result, tile, gc,
783	0, 0,
784	0, 0,
785	image_width, image_height);
786
787	gcv.tile = tile;
788	gcv.fill_style = FillTiled;
789	gcv.ts_x_origin = x;
790	gcv.ts_y_origin = y;
791	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
792
793	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
794	XFreePixmap (dpy, tile);
795	}
796	else
797	{
798	int src_x, src_y, dst_x, dst_y;
799	int dst_width, dst_height;
800
801	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
802	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
803
804	if (dst_x > 0 || dst_y > 0
805	|| dst_x + dst_width < new_pmap_width
806	|| dst_y + dst_height < new_pmap_height)
807	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
808
809	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
810	pixbuf_to_pixmap (result, bg_pixmap, gc,
811	src_x, src_y,
812	dst_x, dst_y,
813	dst_width, dst_height);
814	}
815
816	#if XRENDER
817	if (tr_flags)
818	{
819	XRenderPictureAttributes pa;
820
821	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);
822	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
823
824	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
825	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
826
827	pa.repeat = True;
828	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
829	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
830	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
831	XFreePixmap (dpy, mask_pmap);
832
833	XRenderColor mask_c;
834
835	mask_c.alpha = 0x8000;
836	mask_c.red = 0;
837	mask_c.green = 0;
838	mask_c.blue = 0;
839	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
840	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
841
842	XRenderFreePicture (dpy, src);
843	XRenderFreePicture (dpy, dst);
844	XRenderFreePicture (dpy, mask);
845	}
846	#endif
847
848	XFreeGC (dpy, gc);
849
850	ret = true;
851	}
852
853	if (result != pixbuf)
854	g_object_unref (result);
855
856	if (tr_flags)
857	XFreePixmap (dpy, root_pmap);
858
859	return ret;
860	}	345	}
861	# endif /* HAVE_PIXBUF */
862		346
863	bool	347	void
864	rxvt_term::bg_set_file (const char *file)	348	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
865	{	349	{
866	if (!file || !*file)	350	if (!file || !*file)
867	return false;	351	return;
868		352
869	if (const char *p = strchr (file, ';'))	353	const char *p = strchr (file, ';');
		354
		355	if (p)
870	{	356	{
871	size_t len = p - file;	357	size_t len = p - file;
872	char *f = rxvt_temp_buf<char> (len + 1);	358	char *f = rxvt_temp_buf<char> (len + 1);
873	memcpy (f, file, len);	359	memcpy (f, file, len);
874	f[len] = '\0';	360	f[len] = '\0';
875	file = f;	361	file = f;
876	}	362	}
877		363
878	# ifdef HAVE_AFTERIMAGE	364	set_file (s, file);
879	if (!asimman)	365	alpha = 0x8000;
880	asimman = create_generic_imageman (rs[Rs_path]);	366	set_geometry (p ? p + 1 : "");
881	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	367	}
882	if (image)
883	{
884	if (original_asim)
885	safe_asimage_destroy (original_asim);
886	original_asim = image;
887	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
888	return true;
889	}
890	# endif
891		368
892	# ifdef HAVE_PIXBUF	369	void
893	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	370	rxvt_image::set_file (rxvt_screen *s, const char *file)
894	if (image)	371	{
895	{	372	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
896	if (pixbuf)	373	delete img;
897	g_object_unref (pixbuf);	374	img = img2;
898	pixbuf = image;
899	bg_flags |= BG_IS_FROM_FILE;
900	return true;
901	}
902	# endif
903
904	return false;
905	}	375	}
906		376
907	# endif /* BG_IMAGE_FROM_FILE */	377	# endif /* BG_IMAGE_FROM_FILE */
908		378
909	# ifdef ENABLE_TRANSPARENCY
910	bool	379	bool
911	rxvt_term::bg_set_transparent ()	380	image_effects::set_blur (const char *geom)
912	{
913	if (!(bg_flags & BG_IS_TRANSPARENT))
914	{
915	bg_flags |= BG_IS_TRANSPARENT;
916	return true;
917	}
918
919	return false;
920	}
921
922	bool
923	rxvt_term::bg_set_blur (const char *geom)
924	{	381	{
925	bool changed = false;	382	bool changed = false;
926	unsigned int hr, vr;	383	unsigned int hr, vr;
927	int junk;	384	int junk;
928	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	385	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
945	{	402	{
946	changed = true;	403	changed = true;
947	v_blurRadius = vr;	404	v_blurRadius = vr;
948	}	405	}
949		406
950	if (v_blurRadius == 0 && h_blurRadius == 0)
951	bg_flags &= ~BG_NEEDS_BLUR;
952	else
953	bg_flags |= BG_NEEDS_BLUR;
954
955	return changed;	407	return changed;
956	}	408	}
957		409
958	void
959	rxvt_term::set_tint_shade_flags ()
960	{
961	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
962	bool has_shade = shade != 100;
963
964	bg_flags &= ~BG_TINT_FLAGS;
965
966	if (bg_flags & BG_TINT_SET)
967	{
968	tint.get (c);
969	if (!has_shade
970	&& (c.r <= 0x00ff || c.r >= 0xff00)
971	&& (c.g <= 0x00ff || c.g >= 0xff00)
972	&& (c.b <= 0x00ff || c.b >= 0xff00))
973	bg_flags |= BG_TINT_BITAND;
974	}
975
976	if (has_shade || (bg_flags & BG_TINT_SET))
977	bg_flags |= BG_NEEDS_TINT;
978	}
979
980	bool	410	bool
981	rxvt_term::bg_set_tint (rxvt_color &new_tint)	411	image_effects::set_tint (const rxvt_color &new_tint)
982	{	412	{
983	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	413	if (!tint_set || tint != new_tint)
984	{	414	{
985	tint = new_tint;	415	tint = new_tint;
986	bg_flags |= BG_TINT_SET;	416	tint_set = true;
987	set_tint_shade_flags ();	417
988	return true;	418	return true;
989	}	419	}
990		420
991	return false;	421	return false;
992	}	422	}
993		423
994	bool	424	bool
995	rxvt_term::bg_set_shade (const char *shade_str)	425	image_effects::set_shade (const char *shade_str)
996	{	426	{
997	int new_shade = (shade_str) ? atoi (shade_str) : 100;	427	int new_shade = atoi (shade_str);
998		428
999	clamp_it (new_shade, -100, 200);	429	clamp_it (new_shade, -100, 200);
1000	if (new_shade < 0)	430	if (new_shade < 0)
1001	new_shade = 200 - (100 + new_shade);	431	new_shade = 200 - (100 + new_shade);
1002		432
1003	if (new_shade != shade)	433	if (new_shade != shade)
1004	{	434	{
1005	shade = new_shade;	435	shade = new_shade;
1006	set_tint_shade_flags ();
1007	return true;	436	return true;
1008	}	437	}
1009		438
1010	return false;	439	return false;
1011	}	440	}
1012		441
1013	#if XRENDER	442	# if BG_IMAGE_FROM_ROOT
1014	static void
1015	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1016	{
1017	double sigma = radius / 2.0;
1018	double scale = sqrt (2.0 * M_PI) * sigma;
1019	double sum = 0.0;
1020
1021	for (int i = 0; i < width; i++)
1022	{
1023	double x = i - width / 2;
1024	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1025	sum += kernel[i];
1026	}
1027
1028	params[0] = XDoubleToFixed (width);
1029	params[1] = XDoubleToFixed (1);
1030
1031	for (int i = 0; i < width; i++)
1032	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1033	}
1034	#endif
1035
1036	bool
1037	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1038	{
1039	bool ret = false;
1040	#if XRENDER
1041	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1042	double *kernel = (double *)malloc (size * sizeof (double));
1043	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1044
1045	XRenderPictureAttributes pa;
1046	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1047
1048	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1049	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1050
1051	if (kernel && params)
1052	{
1053	if (h_blurRadius)
1054	{
1055	size = h_blurRadius * 2 + 1;
1056	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1057
1058	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1059	XRenderComposite (dpy,
1060	PictOpSrc,
1061	src,
1062	None,
1063	dst,
1064	0, 0,
1065	0, 0,
1066	0, 0,
1067	width, height);
1068	}
1069
1070	if (v_blurRadius)
1071	{
1072	size = v_blurRadius * 2 + 1;
1073	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1074	::swap (params[0], params[1]);
1075
1076	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1077	XRenderComposite (dpy,
1078	PictOpSrc,
1079	src,
1080	None,
1081	dst,
1082	0, 0,
1083	0, 0,
1084	0, 0,
1085	width, height);
1086	}
1087
1088	ret = true;
1089	}
1090
1091	free (kernel);
1092	free (params);
1093	XRenderFreePicture (dpy, src);
1094	XRenderFreePicture (dpy, dst);
1095	#endif
1096	return ret;
1097	}
1098
1099	bool
1100	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1101	{
1102	bool ret = false;
1103
1104	if (bg_flags & BG_TINT_BITAND)
1105	{
1106	XGCValues gcv;
1107	GC gc;
1108
1109	/* In this case we can tint image server-side getting significant
1110	* performance improvements, as we eliminate XImage transfer
1111	*/
1112	gcv.foreground = Pixel (tint);
1113	gcv.function = GXand;
1114	gcv.fill_style = FillSolid;
1115	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1116	if (gc)
1117	{
1118	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1119	ret = true;
1120	XFreeGC (dpy, gc);
1121	}
1122	}
1123	else
1124	{
1125	# if XRENDER
1126	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1127
1128	if (bg_flags & BG_TINT_SET)
1129	tint.get (c);
1130
1131	if (shade <= 100)
1132	{
1133	c.r = c.r * shade / 100;
1134	c.g = c.g * shade / 100;
1135	c.b = c.b * shade / 100;
1136	}
1137	else
1138	{
1139	c.r = c.r * (200 - shade) / 100;
1140	c.g = c.g * (200 - shade) / 100;
1141	c.b = c.b * (200 - shade) / 100;
1142	}
1143
1144	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1145	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1146	XRenderPictureAttributes pa;
1147
1148	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1149
1150	pa.repeat = True;
1151
1152	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1153	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1154	XFreePixmap (dpy, overlay_pmap);
1155
1156	pa.component_alpha = True;
1157	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1158	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1159	XFreePixmap (dpy, mask_pmap);
1160
1161	XRenderColor mask_c;
1162
1163	mask_c.alpha = 0xffff;
1164	mask_c.red =
1165	mask_c.green =
1166	mask_c.blue = 0;
1167	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1168
1169	mask_c.alpha = 0;
1170	mask_c.red = 0xffff - c.r;
1171	mask_c.green = 0xffff - c.g;
1172	mask_c.blue = 0xffff - c.b;
1173	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1174	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1175
1176	if (shade > 100)
1177	{
1178	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1179	mask_c.alpha = 0;
1180	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1181
1182	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1183	}
1184
1185	ret = true;
1186
1187	XRenderFreePicture (dpy, mask_pic);
1188	XRenderFreePicture (dpy, overlay_pic);
1189	XRenderFreePicture (dpy, back_pic);
1190	# endif
1191	}
1192
1193	return ret;
1194	}
1195
1196	/*	443	/*
1197	* 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
1198	* 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
1199	* our window.	446	* our window.
1200	*/	447	*/
1201	unsigned long	448	bool
1202	rxvt_term::make_transparency_pixmap ()	449	rxvt_term::render_root_image ()
1203	{	450	{
1204	unsigned long result = 0;
1205
1206	/* 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
1207	* be always up-to-date, so let's use it :	452	* be always up-to-date, so let's use it :
1208	*/	453	*/
1209	int screen = display->screen;	454	int screen = display->screen;
1210	int root_depth = DefaultDepth (dpy, screen);
1211	int root_width = DisplayWidth (dpy, screen);	455	int root_width = DisplayWidth (dpy, screen);
1212	int root_height = DisplayHeight (dpy, screen);	456	int root_height = DisplayHeight (dpy, screen);
1213	unsigned int root_pmap_width, root_pmap_height;
1214	int window_width = szHint.width;	457	int parent_width = szHint.width;
1215	int window_height = szHint.height;	458	int parent_height = szHint.height;
1216	int sx, sy;	459	int sx, sy;
1217	XGCValues gcv;
1218	GC gc;
1219		460
1220	sx = target_x;	461	sx = parent_x;
1221	sy = target_y;	462	sy = parent_y;
		463
		464	if (!root_img)
		465	return false;
1222		466
1223	/* 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 : */
1224	if (sx + window_width <= 0 || sy + window_height <= 0	468	if (sx + parent_width <= 0 || sy + parent_height <= 0
1225	|| sx >= root_width || sy >= root_height)	469	|| sx >= root_width || sy >= root_height)
1226	return 0;	470	return 0;
1227		471
1228	// validate root pixmap and get its size	472	while (sx < 0) sx += root_img->w;
1229	if (root_pixmap != None)	473	while (sy < 0) sy += root_img->h;
1230	{
1231	Window wdummy;
1232	int idummy;
1233	unsigned int udummy;
1234		474
1235	allowedxerror = -1;	475	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1236		476
1237	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	477	if (root_effects.need_blur ())
1238	root_pixmap = None;	478	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1239		479
1240	allowedxerror = 0;	480	if (root_effects.need_tint ())
1241	}	481	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1242		482
1243	Pixmap recoded_root_pmap = root_pixmap;
1244
1245	if (root_pixmap != None && root_depth != depth)
1246	{
1247	#if XRENDER
1248	if (bg_flags & BG_HAS_RENDER)
1249	{
1250	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1251
1252	XRenderPictureAttributes pa;
1253
1254	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1255	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1256
1257	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	483	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1258	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	484	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1259		485
1260	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	486	delete bg_img;
		487	bg_img = img;
1261		488
1262	XRenderFreePicture (dpy, src);
1263	XRenderFreePicture (dpy, dst);
1264	}
1265	else
1266	#endif
1267	recoded_root_pmap = None;
1268	}
1269
1270	if (recoded_root_pmap == None)
1271	return 0;
1272
1273	if (bg_pixmap == None
1274	|| bg_pmap_width != window_width
1275	|| bg_pmap_height != window_height)
1276	{
1277	if (bg_pixmap)
1278	XFreePixmap (dpy, bg_pixmap);
1279	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1280	bg_pmap_width = window_width;
1281	bg_pmap_height = window_height;
1282	}
1283
1284	/* straightforward pixmap copy */
1285	while (sx < 0) sx += root_width;
1286	while (sy < 0) sy += root_height;
1287
1288	gcv.tile = recoded_root_pmap;
1289	gcv.fill_style = FillTiled;
1290	gcv.ts_x_origin = -sx;
1291	gcv.ts_y_origin = -sy;
1292	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1293
1294	if (gc)
1295	{
1296	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1297	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1298	XFreeGC (dpy, gc);
1299
1300	if (!(bg_flags & BG_CLIENT_RENDER))
1301	{
1302	if ((bg_flags & BG_NEEDS_BLUR)
1303	&& (bg_flags & BG_HAS_RENDER_CONV))
1304	{
1305	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1306	result &= ~BG_NEEDS_BLUR;
1307	}
1308	if ((bg_flags & BG_NEEDS_TINT)
1309	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1310	{
1311	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1312	result &= ~BG_NEEDS_TINT;
1313	}
1314	} /* server side rendering completed */
1315	}
1316
1317	if (recoded_root_pmap != root_pixmap)
1318	XFreePixmap (dpy, recoded_root_pmap);
1319
1320	return result;	489	return true;
1321	}	490	}
1322		491
1323	void	492	void
1324	rxvt_term::bg_set_root_pixmap ()	493	rxvt_term::bg_set_root_pixmap ()
1325	{	494	{
1326	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	495	delete root_img;
1327	if (new_root_pixmap == None)	496	root_img = rxvt_img::new_from_root (this);
1328	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1329
1330	root_pixmap = new_root_pixmap;
1331	}	497	}
1332	# endif /* ENABLE_TRANSPARENCY */	498	# endif /* BG_IMAGE_FROM_ROOT */
1333		499
1334	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	500	void
1335	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1336	# endif
1337
1338	bool
1339	rxvt_term::bg_render ()	501	rxvt_term::bg_render ()
1340	{	502	{
1341	unsigned long tr_flags = 0;	503	if (bg_flags & BG_INHIBIT_RENDER)
		504	return;
1342		505
1343	bg_invalidate ();	506	bg_invalidate ();
1344	# ifdef ENABLE_TRANSPARENCY	507	# if BG_IMAGE_FROM_ROOT
1345	if (bg_flags & BG_IS_TRANSPARENT)	508	if (option (Opt_transparent))
1346	{	509	{
1347	/* we need to re-generate transparency pixmap in that case ! */	510	/* we need to re-generate transparency pixmap in that case ! */
1348	tr_flags = make_transparency_pixmap ();	511	if (render_root_image ())
1349	if (tr_flags == 0)	512	bg_flags |= BG_IS_VALID | BG_IS_TRANSPARENT;
1350	return false;	513	}
1351	else if (!(tr_flags & BG_EFFECTS_FLAGS))	514	# endif
		515
		516	# if BG_IMAGE_FROM_FILE
		517	if (fimage.img)
		518	{
		519	if (render_image (fimage))
1352	bg_flags |= BG_IS_VALID;	520	bg_flags |= BG_IS_VALID;
1353	}	521	}
1354	# endif	522	# endif
1355		523
1356	# ifdef BG_IMAGE_FROM_FILE
1357	if ((bg_flags & BG_IS_FROM_FILE)
1358	|| (tr_flags & BG_EFFECTS_FLAGS))
1359	{
1360	if (render_image (tr_flags))
1361	bg_flags |= BG_IS_VALID;
1362	}
1363	# endif
1364
1365	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1366	XImage *result = NULL;
1367
1368	if (tr_flags && !(bg_flags & BG_IS_VALID))
1369	{
1370	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1371	}
1372
1373	if (result)
1374	{
1375	/* our own client-side tinting */
1376	if (tr_flags & BG_NEEDS_TINT)
1377	{
1378	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1379	if (bg_flags & BG_TINT_SET)
1380	tint.get (c);
1381	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1382	}
1383
1384	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1385
1386	if (gc)
1387	{
1388	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1389
1390	XFreeGC (dpy, gc);
1391	bg_flags |= BG_IS_VALID;
1392	}
1393
1394	XDestroyImage (result);
1395	}
1396	# endif
1397
1398	if (!(bg_flags & BG_IS_VALID))	524	if (!(bg_flags & BG_IS_VALID))
1399	{	525	{
1400	if (bg_pixmap != None)	526	delete bg_img;
1401	{	527	bg_img = 0;
1402	XFreePixmap (dpy, bg_pixmap);
1403	bg_pixmap = None;
1404	}
1405	}	528	}
1406		529
1407	scr_recolour (false);	530	scr_recolour (false);
1408	bg_flags |= BG_NEEDS_REFRESH;	531	bg_flags |= BG_NEEDS_REFRESH;
1409		532
1410	bg_valid_since = ev::now ();	533	bg_valid_since = ev::now ();
1411
1412	return true;
1413	}	534	}
1414		535
1415	void	536	void
1416	rxvt_term::bg_init ()	537	rxvt_term::bg_init ()
1417	{	538	{
1418	#ifdef ENABLE_TRANSPARENCY	539	#if BG_IMAGE_FROM_ROOT
1419	shade = 100;	540	if (option (Opt_transparent))
		541	{
		542	if (rs [Rs_blurradius])
		543	root_effects.set_blur (rs [Rs_blurradius]);
		544
		545	if (ISSET_PIXCOLOR (Color_tint))
		546	root_effects.set_tint (pix_colors_focused [Color_tint]);
		547
		548	if (rs [Rs_shade])
		549	root_effects.set_shade (rs [Rs_shade]);
		550
		551	bg_set_root_pixmap ();
		552	XSelectInput (dpy, display->root, PropertyChangeMask);
		553	rootwin_ev.start (display, display->root);
		554	}
1420	#endif	555	#endif
1421		556
1422	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	557	#if BG_IMAGE_FROM_FILE
1423	#if XRENDER	558	if (rs[Rs_backgroundPixmap])
1424	int major, minor;
1425	if (XRenderQueryVersion (dpy, &major, &minor))
1426	bg_flags |= BG_HAS_RENDER;
1427	XFilters *filters = XRenderQueryFilters (dpy, vt);
1428	if (filters)
1429	{	559	{
1430	for (int i = 0; i < filters->nfilter; i++)	560	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1431	if (!strcmp (filters->filter[i], FilterConvolution))	561	if (!bg_window_position_sensitive ())
1432	bg_flags |= BG_HAS_RENDER_CONV;	562	update_background ();
1433
1434	XFree (filters);
1435	}	563	}
1436	#endif	564	#endif
1437	}	565	}
1438		566
		567	void
		568	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		569	{
		570	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		571
		572	if (tint_set)
		573	tint.get (c);
		574
		575	if (shade > 100)
		576	{
		577	c.r = c.r * (200 - shade) / 100;
		578	c.g = c.g * (200 - shade) / 100;
		579	c.b = c.b * (200 - shade) / 100;
		580	}
		581	else
		582	{
		583	c.r = c.r * shade / 100;
		584	c.g = c.g * shade / 100;
		585	c.b = c.b * shade / 100;
		586	}
		587
		588	img->contrast (c.r, c.g, c.b, c.a);
		589
		590	if (shade > 100)
		591	{
		592	c.a = 0xffff;
		593	c.r =
		594	c.g =
		595	c.b = 0xffff * (shade - 100) / 100;
		596	img->brightness (c.r, c.g, c.b, c.a);
		597	}
		598	}
		599
1439	#endif /* HAVE_BG_PIXMAP */	600	#endif /* HAVE_BG_PIXMAP */
1440
1441	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1442	/* taken from aterm-0.4.2 */
1443
1444	static void
1445	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1446	{
1447	int sh_r, sh_g, sh_b;
1448	uint32_t mask_r, mask_g, mask_b;
1449	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1450	rgba low;
1451	rgba high;
1452	int i;
1453	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1454
1455	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1456
1457	/* for convenience */
1458	mask_r = visual->red_mask;
1459	mask_g = visual->green_mask;
1460	mask_b = visual->blue_mask;
1461
1462	/* boring lookup table pre-initialization */
1463	switch (ximage->depth)
1464	{
1465	case 15:
1466	if ((mask_r != 0x7c00) ||
1467	(mask_g != 0x03e0) ||
1468	(mask_b != 0x001f))
1469	return;
1470	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1471	lookup_r = lookup;
1472	lookup_g = lookup+32;
1473	lookup_b = lookup+32+32;
1474	sh_r = 10;
1475	sh_g = 5;
1476	sh_b = 0;
1477	break;
1478	case 16:
1479	if ((mask_r != 0xf800) ||
1480	(mask_g != 0x07e0) ||
1481	(mask_b != 0x001f))
1482	return;
1483	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1484	lookup_r = lookup;
1485	lookup_g = lookup+32;
1486	lookup_b = lookup+32+64;
1487	sh_r = 11;
1488	sh_g = 5;
1489	sh_b = 0;
1490	break;
1491	case 24:
1492	if ((mask_r != 0xff0000) ||
1493	(mask_g != 0x00ff00) ||
1494	(mask_b != 0x0000ff))
1495	return;
1496	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1497	lookup_r = lookup;
1498	lookup_g = lookup+256;
1499	lookup_b = lookup+256+256;
1500	sh_r = 16;
1501	sh_g = 8;
1502	sh_b = 0;
1503	break;
1504	case 32:
1505	if ((mask_r != 0xff0000) ||
1506	(mask_g != 0x00ff00) ||
1507	(mask_b != 0x0000ff))
1508	return;
1509	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1510	lookup_r = lookup;
1511	lookup_g = lookup+256;
1512	lookup_b = lookup+256+256;
1513	sh_r = 16;
1514	sh_g = 8;
1515	sh_b = 0;
1516	break;
1517	default:
1518	return; /* we do not support this color depth */
1519	}
1520
1521	/* prepare limits for color transformation (each channel is handled separately) */
1522	if (shade > 100)
1523	{
1524	shade = 200 - shade;
1525
1526	high.r = c.r * shade / 100;
1527	high.g = c.g * shade / 100;
1528	high.b = c.b * shade / 100;
1529
1530	low.r = 65535 * (100 - shade) / 100;
1531	low.g = 65535 * (100 - shade) / 100;
1532	low.b = 65535 * (100 - shade) / 100;
1533	}
1534	else
1535	{
1536	high.r = c.r * shade / 100;
1537	high.g = c.g * shade / 100;
1538	high.b = c.b * shade / 100;
1539
1540	low.r = low.g = low.b = 0;
1541	}
1542
1543	/* fill our lookup tables */
1544	for (i = 0; i <= mask_r>>sh_r; i++)
1545	{
1546	uint32_t tmp;
1547	tmp = i * high.r;
1548	tmp += (mask_r>>sh_r) * low.r;
1549	lookup_r[i] = (tmp/65535)<<sh_r;
1550	}
1551	for (i = 0; i <= mask_g>>sh_g; i++)
1552	{
1553	uint32_t tmp;
1554	tmp = i * high.g;
1555	tmp += (mask_g>>sh_g) * low.g;
1556	lookup_g[i] = (tmp/65535)<<sh_g;
1557	}
1558	for (i = 0; i <= mask_b>>sh_b; i++)
1559	{
1560	uint32_t tmp;
1561	tmp = i * high.b;
1562	tmp += (mask_b>>sh_b) * low.b;
1563	lookup_b[i] = (tmp/65535)<<sh_b;
1564	}
1565
1566	/* apply table to input image (replacing colors by newly calculated ones) */
1567	if (ximage->bits_per_pixel == 32
1568	&& (ximage->depth == 24 || ximage->depth == 32)
1569	&& ximage->byte_order == host_byte_order)
1570	{
1571	uint32_t *p1, *pf, *p, *pl;
1572	p1 = (uint32_t *) ximage->data;
1573	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1574
1575	while (p1 < pf)
1576	{
1577	p = p1;
1578	pl = p1 + ximage->width;
1579	for (; p < pl; p++)
1580	{
1581	*p = lookup_r[(*p & 0xff0000) >> 16] |
1582	lookup_g[(*p & 0x00ff00) >> 8] |
1583	lookup_b[(*p & 0x0000ff)] |
1584	(*p & 0xff000000);
1585	}
1586	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1587	}
1588	}
1589	else
1590	{
1591	for (int y = 0; y < ximage->height; y++)
1592	for (int x = 0; x < ximage->width; x++)
1593	{
1594	unsigned long pixel = XGetPixel (ximage, x, y);
1595	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1596	lookup_g[(pixel & mask_g) >> sh_g] |
1597	lookup_b[(pixel & mask_b) >> sh_b];
1598	XPutPixel (ximage, x, y, pixel);
1599	}
1600	}
1601
1602	free (lookup);
1603	}
1604	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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