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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.152 by sf-exg, Sun May 8 21:03:03 2011 UTC vs.
Revision 1.249 by sf-exg, Sun Dec 30 11:52:15 2012 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
20	* You should have received a copy of the GNU General Public License	20	* You should have received a copy of the GNU General Public License
21	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
24		24
25	#include <cmath>
26	#include "../config.h" /* NECESSARY */	25	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	26	#include "rxvt.h" /* NECESSARY */
28		27
29	#if XRENDER
30	# include <X11/extensions/Xrender.h>
31	#endif
32
33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"
35	#endif
36
37	/*
38	* Pixmap geometry string interpretation :
39	* Each geometry string contains zero or one scale/position
40	* adjustment and may optionally be followed by a colon and one or more
41	* colon-delimited pixmap operations.
42	* The following table shows the valid geometry strings and their
43	* effects on the background image :
44	*
45	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
46	* W and H are percentages of the terminal window size.
47	* X and Y are also percentages; e.g., +50+50 centers
48	* the image in the window.
49	*
50	* Pixmap Operations : (should be prepended by a colon)
51	* tile Tile image. Scaling/position modifiers above will affect
52	* the tile size and origin.
53	* propscale When scaling, scale proportionally. That is, maintain the
54	* proper aspect ratio for the image. Any portion of the
55	* background not covered by the image is filled with the
56	* current background color.
57	* hscale Scale horizontally, tile vertically ?
58	* vscale Tile horizontally, scale vertically ?
59	* scale Scale both up and down
60	* auto Same as 100x100+50+50
61	*/
62
63	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
64	void	30	void
65	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
66	{	32	{
67	#ifdef HAVE_AFTERIMAGE	33	# if BG_IMAGE_FROM_ROOT
68	if (original_asim)	34	delete root_img;
69	safe_asimage_destroy (original_asim);	35	root_img = 0;
70	if (asv)
71	destroy_asvisual (asv, 0);
72	if (asimman)
73	destroy_image_manager (asimman, 0);
74	#endif	36	# endif
75		37
76	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
77	if (pixbuf)	39	fimage.destroy ();
78	g_object_unref (pixbuf);
79	#endif	40	# endif
80
81	if (bg_pixmap)
82	XFreePixmap (dpy, bg_pixmap);
83	}	41	}
84		42
85	bool	43	bool
86	rxvt_term::bg_set_position (int x, int y)	44	rxvt_term::bg_window_size_sensitive ()
87	{	45	{
		46	# if BG_IMAGE_FROM_ROOT
		47	if (option (Opt_transparent))
		48	return true;
		49	# endif
88		50
89	if (target_x != x	51	# if BG_IMAGE_FROM_FILE
90	|| target_y != y)	52	if (fimage.img)
91	{	53	{
92	target_x = x;	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
93	target_y = y;	55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
94	return true;	57	return true;
95	}	58	}
		59	# endif
		60
96	return false;	61	return false;
97	}	62	}
98		63
99	bool	64	bool
100	rxvt_term::bg_window_size_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
101	{	66	{
102	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
103	if (bg_flags & BG_IS_TRANSPARENT)	68	if (option (Opt_transparent))
104	return true;	69	return true;
105	# endif	70	# endif
106		71
107	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
108	if (bg_flags & BG_IS_FROM_FILE)	73	if (fimage.img)
109	{	74	{
110	if (bg_flags & BG_IS_SIZE_SENSITIVE)	75	if (fimage.flags & IM_ROOT_ALIGN)
111	return true;	76	return true;
112	}	77	}
113	# endif	78	# endif
114		79
115	return false;	80	return false;
116	}	81	}
117		82
118	bool
119	rxvt_term::bg_window_position_sensitive ()
120	{
121	# ifdef ENABLE_TRANSPARENCY
122	if (bg_flags & BG_IS_TRANSPARENT)
123	return true;
124	# endif
125
126	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
127	if (bg_flags & BG_IS_FROM_FILE)
128	{
129	if (bg_flags & BG_ROOT_ALIGN)
130	return true;
131	}
132	# endif
133
134	return false;
135	}
136
137	# ifdef BG_IMAGE_FROM_FILE
138	static inline bool
139	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
140	{
141	if (geom_flags & flag)
142	{
143	if (new_value > 1000)
144	new_value = 1000;
145	if (new_value != scale)
146	{
147	scale = new_value;
148	return true;
149	}
150	}
151	return false;
152	}
153
154	static inline bool
155	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
156	{
157	if (geom_flags & flag)
158	{
159	if (new_value < -100)
160	new_value = -100;
161	else if (new_value > 200)
162	new_value = 200;
163	if (new_value != align)
164	{
165	align = new_value;
166	return true;
167	}
168	}
169	return false;
170	}
171
172	static inline int	84	static inline int
173	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
174	{	86	{
175	int diff = window_size - image_size;
176	int smaller = min (image_size, window_size);
177
178	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
179	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
180	else if (align > 100 && align <= 200)	89	else if (align > 100)
181	return ((align - 100) * smaller / 100) + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
182	else if (align >= -100 && align < 0)	91	else
183	return ((align + 100) * smaller / 100) - image_size;	92	return lerp (-image_size, 0, align + 100);
184	return 0;
185	}	93	}
186		94
187	static inline int	95	static void
188	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	96	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
189	{	97	{
190	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
191	dst_pos = pos;
192	dst_size = size;
193	if (pos < 0)
194	{
195	src_pos = -pos;
196	dst_pos = 0;
197	dst_size += pos;
198	}	99	{
199		100	flags = IM_TILE;
200	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
201	dst_size = target_size - dst_pos;	102	x = y = 0;
202	return src_pos;	103	}
		104	else if (!strcasecmp (style, "aspect-stretched"))
		105	{
		106	flags = IM_KEEP_ASPECT;
		107	w = h = windowScale;
		108	x = y = centerAlign;
		109	}
		110	else if (!strcasecmp (style, "stretched"))
		111	{
		112	flags = 0;
		113	w = h = windowScale;
		114	x = y = centerAlign;
		115	}
		116	else if (!strcasecmp (style, "centered"))
		117	{
		118	flags = 0;
		119	w = h = noScale;
		120	x = y = centerAlign;
		121	}
		122	else if (!strcasecmp (style, "root-tiled"))
		123	{
		124	flags = IM_TILE|IM_ROOT_ALIGN;
		125	w = h = noScale;
		126	x = y = 0;
		127	}
203	}	128	}
204		129
205	bool	130	bool
206	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
207	{	132	{
208	bool changed = false;	133	bool changed = false;
209	int geom_flags = 0;	134	int geom_flags = 0;
210	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
211	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
212	unsigned int n;	138	unsigned int h = v_scale;
213	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	139	uint8_t new_flags = 0;
214	const char *ops;
215		140
216	if (geom == NULL)	141	if (geom == NULL)
217	return false;	142	return false;
218		143
219	char str[256];	144	if (geom[0])
220
221	ops = strchr (geom, ':');
222	if (ops == NULL)
223	n = strlen (geom);
224	else
225	n = ops - geom;
226
227	if (n >= sizeof (str))
228	return false;
229
230	memcpy (str, geom, n);
231	str[n] = '\0';
232	rxvt_strtrim (str);
233
234	if (str[0])
235	{	145	{
236	/* we have geometry string - let's handle it prior to applying ops */	146	char **arr = rxvt_strsplit (':', geom);
		147
		148	for (int i = 0; arr[i]; i++)
		149	{
		150	if (!strncasecmp (arr[i], "style=", 6))
		151	{
		152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		153	geom_flags = WidthValue|HeightValue|XValue|YValue;
		154	}
		155	else if (!strcasecmp (arr[i], "op=tile"))
		156	new_flags |= IM_TILE;
		157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		158	new_flags |= IM_KEEP_ASPECT;
		159	else if (!strcasecmp (arr[i], "op=root-align"))
		160	new_flags |= IM_ROOT_ALIGN;
		161
		162	// deprecated
		163	else if (!strcasecmp (arr[i], "tile"))
		164	{
		165	new_flags |= IM_TILE;
		166	w = h = noScale;
		167	geom_flags |= WidthValue|HeightValue;
		168	}
		169	else if (!strcasecmp (arr[i], "propscale"))
		170	{
		171	new_flags |= IM_KEEP_ASPECT;
		172	w = h = windowScale;
		173	geom_flags |= WidthValue|HeightValue;
		174	}
		175	else if (!strcasecmp (arr[i], "hscale"))
		176	{
		177	new_flags |= IM_TILE;
		178	w = windowScale;
		179	h = noScale;
		180	geom_flags |= WidthValue|HeightValue;
		181	}
		182	else if (!strcasecmp (arr[i], "vscale"))
		183	{
		184	new_flags |= IM_TILE;
		185	h = windowScale;
		186	w = noScale;
		187	geom_flags |= WidthValue|HeightValue;
		188	}
		189	else if (!strcasecmp (arr[i], "scale"))
		190	{
		191	w = h = windowScale;
		192	geom_flags |= WidthValue|HeightValue;
		193	}
		194	else if (!strcasecmp (arr[i], "auto"))
		195	{
		196	w = h = windowScale;
		197	x = y = centerAlign;
		198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		199	}
		200	else if (!strcasecmp (arr[i], "root"))
		201	{
		202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		203	w = h = noScale;
		204	geom_flags |= WidthValue|HeightValue;
		205	}
		206
		207	else
237	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
238	} /* done parsing geometry string */	209	} /* done parsing ops */
		210
		211	rxvt_free_strsplit (arr);
		212	}
		213
		214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
239		215
240	if (!update)	216	if (!update)
241	{	217	{
242	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
243	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
248	w = h = defaultScale;	224	w = h = defaultScale;
249	else if (!(geom_flags & HeightValue))	225	else if (!(geom_flags & HeightValue))
250	h = w;	226	h = w;
251	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
252	w = h;	228	w = h;
253
254	geom_flags |= WidthValue|HeightValue|XValue|YValue;
255	}
256
257	if (ops)
258	{	229	}
259	char **arr = rxvt_strsplit (':', ops + 1);
260		230
261	for (int i = 0; arr[i]; i++)	231	clamp_it (x, -100, 200);
262	{	232	clamp_it (y, -100, 200);
263	if (!strcasecmp (arr[i], "tile"))
264	{
265	w = h = noScale;
266	geom_flags |= WidthValue|HeightValue;
267	}
268	else if (!strcasecmp (arr[i], "propscale"))
269	{
270	new_flags |= BG_PROP_SCALE;
271	}
272	else if (!strcasecmp (arr[i], "hscale"))
273	{
274	if (w == 0) w = windowScale;
275		233
276	h = noScale;	234	if (flags != new_flags
277	geom_flags |= WidthValue|HeightValue;	235	|| h_scale != w
278	}	236	|| v_scale != h
279	else if (!strcasecmp (arr[i], "vscale"))	237	|| h_align != x
280	{	238	|| v_align != y)
281	if (h == 0) h = windowScale;
282
283	w = noScale;
284	geom_flags |= WidthValue|HeightValue;
285	}
286	else if (!strcasecmp (arr[i], "scale"))
287	{
288	if (h == 0) h = windowScale;
289	if (w == 0) w = windowScale;
290
291	geom_flags |= WidthValue|HeightValue;
292	}
293	else if (!strcasecmp (arr[i], "auto"))
294	{
295	w = h = windowScale;
296	x = y = centerAlign;
297	geom_flags |= WidthValue|HeightValue|XValue|YValue;
298	}
299	else if (!strcasecmp (arr[i], "root"))
300	{
301	new_flags |= BG_ROOT_ALIGN;
302	w = h = noScale;
303	geom_flags |= WidthValue|HeightValue;
304	}
305	} /* done parsing ops */
306
307	rxvt_free_strsplit (arr);
308	}	239	{
309
310	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
311	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
312	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
313	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
314
315	if (new_flags != bg_flags)
316	{
317	bg_flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
318	changed = true;	245	changed = true;
319	}	246	}
320		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
321	return changed;	253	return changed;
322	}	254	}
323		255
324	void	256	void
325	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	257	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
326	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
327	int target_width = szHint.width;	261	int parent_width = szHint.width;
328	int target_height = szHint.height;	262	int parent_height = szHint.height;
		263	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		264	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
329		265
330	if (bg_flags & BG_PROP_SCALE)	266	w = h_scale * parent_width / 100;
		267	h = v_scale * parent_height / 100;
		268
		269	if (image.flags & IM_KEEP_ASPECT)
331	{	270	{
332	float scale = (float)target_width / image_width;	271	float scale = (float)w / image_width;
333	min_it (scale, (float)target_height / image_height);	272	min_it (scale, (float)h / image_height);
334	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
335	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
336	}	275	}
337	else
338	{
339	w = h_scale * target_width / 100;
340	h = v_scale * target_height / 100;
341	}
342		276
343	if (!w) w = image_width;	277	if (!w) w = image_width;
344	if (!h) h = image_height;	278	if (!h) h = image_height;
345		279
346	if (bg_flags & BG_ROOT_ALIGN)	280	if (image.flags & IM_ROOT_ALIGN)
347	{	281	{
348	x = -target_x;	282	x = -parent_x;
349	y = -target_y;	283	y = -parent_y;
350	}	284	}
351	else	285	else
352	{	286	{
353	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
354	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
355	}
356
357	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
358	if ((bg_flags & BG_PROP_SCALE) || h_scale || v_scale
359	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
360	|| w > target_width || h > target_height)
361	bg_flags |= BG_IS_SIZE_SENSITIVE;
362	}
363
364	# ifdef HAVE_AFTERIMAGE
365	bool
366	rxvt_term::render_image (unsigned long tr_flags)
367	{
368	init_asv ();
369
370	ASImage *background = NULL;
371	ARGB32 background_tint = TINT_LEAVE_SAME;
372
373	# ifdef ENABLE_TRANSPARENCY
374	if (tr_flags)
375	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
376
377	if (tr_flags & BG_NEEDS_TINT)
378	{	289	}
379	ShadingInfo as_shade;	290	}
380	as_shade.shading = shade;
381		291
382	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	292	bool
383	if (bg_flags & BG_TINT_SET)	293	rxvt_term::render_image (rxvt_image &image)
384	tint.get (c);	294	{
385	as_shade.tintColor.red = c.r;
386	as_shade.tintColor.green = c.g;
387	as_shade.tintColor.blue = c.b;
388
389	background_tint = shading2tint32 (&as_shade);
390	}
391
392	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
393	{
394	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
395	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
396	100, ASIMAGE_QUALITY_DEFAULT);
397	if (tmp)
398	{
399	destroy_asimage (&background);
400	background = tmp;
401	}
402	}
403	# endif
404
405	ASImage *result = 0;
406
407	int target_width = szHint.width;	295	int parent_width = szHint.width;
408	int target_height = szHint.height;	296	int parent_height = szHint.height;
409	int new_pmap_width = target_width;
410	int new_pmap_height = target_height;
411		297
412	int x = 0;	298	int x = 0;
413	int y = 0;	299	int y = 0;
414	int w = 0;	300	int w = 0;
415	int h = 0;	301	int h = 0;
416		302
417	if (original_asim)	303	get_image_geometry (image, w, h, x, y);
418	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
419		304
420	if (!original_asim	305	if (!(image.flags & IM_ROOT_ALIGN)
421	|| (!(bg_flags & BG_ROOT_ALIGN)
422	&& (x >= target_width	306	&& (x >= parent_width
423	|| y >= target_height	307	|| y >= parent_height
424	|| (x + w <= 0)	308	|| x + w <= 0
425	|| (y + h <= 0))))	309	|| y + h <= 0))
426	{	310	return false;
427	if (background)
428	{
429	new_pmap_width = background->width;
430	new_pmap_height = background->height;
431	result = background;
432		311
433	if (background_tint != TINT_LEAVE_SAME)	312	rxvt_img *img = image.img->scale (w, h);
434	{	313
435	ASImage *tmp = tile_asimage (asv, background, 0, 0,	314	if (image.flags & IM_TILE)
436	target_width, target_height, background_tint,	315	img->repeat_mode (RepeatNormal);
437	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
438	if (tmp)
439	result = tmp;
440	}
441	}
442	else
443	new_pmap_width = new_pmap_height = 0;
444	}
445	else	316	else
446	{	317	img->repeat_mode (RepeatNone);
447	result = original_asim;	318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
448		319
449	if ((w != original_asim->width)	320	if (bg_flags & BG_IS_VALID)
450	|| (h != original_asim->height))	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
451	{
452	result = scale_asimage (asv, original_asim,
453	w, h,
454	background ? ASA_ASImage : ASA_XImage,
455	100, ASIMAGE_QUALITY_DEFAULT);
456	}
457		322
458	if (background == NULL)	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
459	{	324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
460	if (h_scale == 0 || v_scale == 0)
461	{
462	/* if tiling - pixmap has to be sized exactly as the image,
463	but there is no need to make it bigger than the window! */
464	new_pmap_width = min (result->width, target_width);
465	new_pmap_height = min (result->height, target_height);
466		325
467	/* we also need to tile our image in both directions */	326	delete bg_img;
468	ASImage *tmp = tile_asimage (asv, result,	327	bg_img = img;
469	(int)result->width - x,
470	(int)result->height - y,
471	new_pmap_width,
472	new_pmap_height,
473	TINT_LEAVE_SAME, ASA_XImage,
474	100, ASIMAGE_QUALITY_DEFAULT);
475	if (tmp)
476	{
477	if (result != original_asim)
478	destroy_asimage (&result);
479		328
480	result = tmp;
481	}
482	}
483	}
484	else
485	{
486	/* if blending background and image - pixmap has to be sized same as target window */
487	ASImageLayer *layers = create_image_layers (2);
488
489	layers[0].im = background;
490	layers[0].clip_width = target_width;
491	layers[0].clip_height = target_height;
492	layers[0].tint = background_tint;
493	layers[1].im = result;
494
495	if (h_scale == 0 || v_scale == 0)
496	{
497	/* tile horizontally */
498	while (x > 0) x -= (int)result->width;
499	layers[1].dst_x = x;
500	layers[1].clip_width = result->width+target_width;
501	}
502	else
503	{
504	/* clip horizontally */
505	layers[1].dst_x = x;
506	layers[1].clip_width = result->width;
507	}
508
509	if (h_scale == 0 || v_scale == 0)
510	{
511	while (y > 0) y -= (int)result->height;
512	layers[1].dst_y = y;
513	layers[1].clip_height = result->height + target_height;
514	}
515	else
516	{
517	layers[1].dst_y = y;
518	layers[1].clip_height = result->height;
519	}
520
521	if (rs[Rs_blendtype])
522	{
523	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
524	if (layers[1].merge_scanlines == NULL)
525	layers[1].merge_scanlines = alphablend_scanlines;
526	}
527
528	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
529	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
530
531	if (tmp)
532	{
533	if (result != original_asim)
534	destroy_asimage (&result);
535
536	result = tmp;
537	}
538
539	free (layers);
540	}
541	}
542
543	bool ret = false;
544
545	if (result)
546	{
547	XGCValues gcv;
548	GC gc;
549
550	/* create Pixmap */
551	if (bg_pixmap == None
552	|| bg_pmap_width != new_pmap_width
553	|| bg_pmap_height != new_pmap_height)
554	{
555	if (bg_pixmap)
556	XFreePixmap (dpy, bg_pixmap);
557	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
558	bg_pmap_width = new_pmap_width;
559	bg_pmap_height = new_pmap_height;
560	}
561	/* fill with background color (if result's not completely overlapping it) */
562	gcv.foreground = pix_colors[Color_bg];
563	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
564
565	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
566	int dst_width = result->width, dst_height = result->height;
567	if (background == NULL)
568	{
569	if (!(h_scale == 0 || v_scale == 0))
570	{
571	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
572	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
573	}
574
575	if (dst_x > 0 || dst_y > 0
576	|| dst_x + dst_width < new_pmap_width
577	|| dst_y + dst_height < new_pmap_height)
578	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
579	}
580
581	/* put result on pixmap */
582	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
583	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
584
585	if (result != background && result != original_asim)
586	destroy_asimage (&result);
587
588	XFreeGC (dpy, gc);
589
590	ret = true;
591	}
592
593	if (background)
594	destroy_asimage (&background);
595
596	return ret;
597	}
598	# endif /* HAVE_AFTERIMAGE */
599
600	# ifdef HAVE_PIXBUF
601	bool
602	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
603	int src_x, int src_y, int dst_x, int dst_y,
604	unsigned int width, unsigned int height)
605	{
606	XImage *ximage;
607	char *data, *line;
608	int bytes_per_pixel;
609	int width_r, width_g, width_b;
610	int sh_r, sh_g, sh_b;
611	int rowstride;
612	int channels;
613	unsigned char *row;
614
615	if (visual->c_class != TrueColor)
616	return false;
617
618	if (depth == 24 || depth == 32)
619	bytes_per_pixel = 4;
620	else if (depth == 15 || depth == 16)
621	bytes_per_pixel = 2;
622	else
623	return false;
624
625	width_r = rxvt_popcount (visual->red_mask);
626	width_g = rxvt_popcount (visual->green_mask);
627	width_b = rxvt_popcount (visual->blue_mask);
628
629	if (width_r > 8 || width_g > 8 || width_b > 8)
630	return false;
631
632	sh_r = rxvt_ctz (visual->red_mask);
633	sh_g = rxvt_ctz (visual->green_mask);
634	sh_b = rxvt_ctz (visual->blue_mask);
635
636	if (width > INT_MAX / height / bytes_per_pixel)
637	return false;
638
639	data = (char *)malloc (width * height * bytes_per_pixel);
640	if (!data)
641	return false;
642
643	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
644	width, height, bytes_per_pixel * 8, 0);
645	if (!ximage)
646	{
647	free (data);
648	return false;
649	}
650
651	ximage->byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
652
653	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
654	channels = gdk_pixbuf_get_n_channels (pixbuf);
655	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
656	line = data;
657
658	for (int y = 0; y < height; y++)
659	{
660	for (int x = 0; x < width; x++)
661	{
662	unsigned char *pixel = row + x * channels;
663	uint32_t value;
664
665	value = ((pixel[0] >> (8 - width_r)) << sh_r)
666	| ((pixel[1] >> (8 - width_g)) << sh_g)
667	| ((pixel[2] >> (8 - width_b)) << sh_b);
668
669	if (bytes_per_pixel == 4)
670	((uint32_t *)line)[x] = value;
671	else
672	((uint16_t *)line)[x] = value;
673	}
674
675	row += rowstride;
676	line += ximage->bytes_per_line;
677	}
678
679	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
680	XDestroyImage (ximage);
681	return true;	329	return true;
682	}	330	}
683		331
684	bool	332	rxvt_image::rxvt_image ()
685	rxvt_term::render_image (unsigned long tr_flags)
686	{	333	{
687	if (!pixbuf)	334	alpha = 0xffff;
688	return false;	335	flags = 0;
		336	h_scale =
		337	v_scale = defaultScale;
		338	h_align =
		339	v_align = defaultAlign;
689		340
690	if (tr_flags	341	img = 0;
691	&& !(bg_flags & BG_HAS_RENDER))
692	return false;
693
694	GdkPixbuf *result;
695
696	int image_width = gdk_pixbuf_get_width (pixbuf);
697	int image_height = gdk_pixbuf_get_height (pixbuf);
698
699	int target_width = szHint.width;
700	int target_height = szHint.height;
701	int new_pmap_width = target_width;
702	int new_pmap_height = target_height;
703
704	int x = 0;
705	int y = 0;
706	int w = 0;
707	int h = 0;
708
709	get_image_geometry (image_width, image_height, w, h, x, y);
710
711	if (!(bg_flags & BG_ROOT_ALIGN)
712	&& (x >= target_width
713	|| y >= target_height
714	|| (x + w <= 0)
715	|| (y + h <= 0)))
716	return false;
717
718	result = pixbuf;
719
720	if ((w != image_width)
721	|| (h != image_height))
722	{
723	result = gdk_pixbuf_scale_simple (pixbuf,
724	w, h,
725	GDK_INTERP_BILINEAR);
726	}
727
728	if (!result)
729	return false;
730
731	bool ret = false;
732
733	XGCValues gcv;
734	GC gc;
735	Pixmap root_pmap;
736
737	image_width = gdk_pixbuf_get_width (result);
738	image_height = gdk_pixbuf_get_height (result);
739
740	if (tr_flags)
741	{
742	root_pmap = bg_pixmap;
743	bg_pixmap = None;
744	}
745	else
746	{
747	if (h_scale == 0 || v_scale == 0)
748	{
749	new_pmap_width = min (image_width, target_width);
750	new_pmap_height = min (image_height, target_height);
751	}
752	}
753
754	if (bg_pixmap == None
755	|| bg_pmap_width != new_pmap_width
756	|| bg_pmap_height != new_pmap_height)
757	{
758	if (bg_pixmap)
759	XFreePixmap (dpy, bg_pixmap);
760	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
761	bg_pmap_width = new_pmap_width;
762	bg_pmap_height = new_pmap_height;
763	}
764
765	if (bg_pixmap != None)
766	{
767	gcv.foreground = pix_colors[Color_bg];
768	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
769
770	if (gc)
771	{
772	if (h_scale == 0 || v_scale == 0)
773	{
774	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
775
776	if (tile != None)
777	{
778	pixbuf_to_pixmap (result, tile, gc,
779	0, 0,
780	0, 0,
781	image_width, image_height);
782
783	gcv.tile = tile;
784	gcv.fill_style = FillTiled;
785	gcv.ts_x_origin = x;
786	gcv.ts_y_origin = y;
787	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
788
789	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
790	XFreePixmap (dpy, tile);
791	}
792	}
793	else
794	{
795	int src_x, src_y, dst_x, dst_y;
796	int dst_width, dst_height;
797
798	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
799	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
800
801	if (dst_x > 0 || dst_y > 0
802	|| dst_x + dst_width < new_pmap_width
803	|| dst_y + dst_height < new_pmap_height)
804	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
805
806	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
807	pixbuf_to_pixmap (result, bg_pixmap, gc,
808	src_x, src_y,
809	dst_x, dst_y,
810	dst_width, dst_height);
811	}
812
813	#if XRENDER
814	if (tr_flags)
815	{
816	XRenderPictureAttributes pa;
817
818	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);
819	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
820
821	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
822	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
823
824	pa.repeat = True;
825	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
826	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
827	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
828	XFreePixmap (dpy, mask_pmap);
829
830	if (src && dst && mask)
831	{
832	XRenderColor mask_c;
833
834	mask_c.alpha = 0x8000;
835	mask_c.red = 0;
836	mask_c.green = 0;
837	mask_c.blue = 0;
838	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
839	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
840	}
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
854	if (result != pixbuf)
855	g_object_unref (result);
856
857	if (tr_flags)
858	XFreePixmap (dpy, root_pmap);
859
860	return ret;
861	}	342	}
862	# endif /* HAVE_PIXBUF */
863		343
864	bool	344	void
865	rxvt_term::bg_set_file (const char *file)	345	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
866	{	346	{
867	if (!file || !*file)	347	if (!file || !*file)
868	return false;	348	return;
869		349
870	if (const char *p = strchr (file, ';'))	350	const char *p = strchr (file, ';');
		351
		352	if (p)
871	{	353	{
872	size_t len = p - file;	354	size_t len = p - file;
873	char *f = rxvt_temp_buf<char> (len + 1);	355	char *f = rxvt_temp_buf<char> (len + 1);
874	memcpy (f, file, len);	356	memcpy (f, file, len);
875	f[len] = '\0';	357	f[len] = '\0';
876	file = f;	358	file = f;
877	}	359	}
878		360
879	# ifdef HAVE_AFTERIMAGE	361	set_file (s, file);
880	if (!asimman)	362	alpha = 0x8000;
881	asimman = create_generic_imageman (rs[Rs_path]);	363	set_geometry (p ? p + 1 : "");
882	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	364	}
883	if (image)
884	{
885	if (original_asim)
886	safe_asimage_destroy (original_asim);
887	original_asim = image;
888	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
889	return true;
890	}
891	# endif
892		365
893	# ifdef HAVE_PIXBUF	366	void
894	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	367	rxvt_image::set_file (rxvt_screen *s, const char *file)
895	if (image)	368	{
896	{	369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
897	if (pixbuf)	370	delete img;
898	g_object_unref (pixbuf);	371	img = img2;
899	pixbuf = image;
900	bg_flags |= BG_IS_FROM_FILE;
901	return true;
902	}
903	# endif
904
905	return false;
906	}	372	}
907		373
908	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
909		375
910	# ifdef ENABLE_TRANSPARENCY
911	bool	376	bool
912	rxvt_term::bg_set_transparent ()	377	image_effects::set_blur (const char *geom)
913	{
914	if (!(bg_flags & BG_IS_TRANSPARENT))
915	{
916	bg_flags |= BG_IS_TRANSPARENT;
917	return true;
918	}
919
920	return false;
921	}
922
923	bool
924	rxvt_term::bg_set_blur (const char *geom)
925	{	378	{
926	bool changed = false;	379	bool changed = false;
927	unsigned int hr, vr;	380	unsigned int hr, vr;
928	int junk;	381	int junk;
929	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
946	{	399	{
947	changed = true;	400	changed = true;
948	v_blurRadius = vr;	401	v_blurRadius = vr;
949	}	402	}
950		403
951	if (v_blurRadius == 0 && h_blurRadius == 0)
952	bg_flags &= ~BG_NEEDS_BLUR;
953	else
954	bg_flags |= BG_NEEDS_BLUR;
955
956	return changed;	404	return changed;
957	}	405	}
958		406
959	void
960	rxvt_term::set_tint_shade_flags ()
961	{
962	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
963	bool has_shade = shade != 100;
964
965	bg_flags &= ~BG_TINT_FLAGS;
966
967	if (bg_flags & BG_TINT_SET)
968	{
969	tint.get (c);
970	if (!has_shade
971	&& (c.r <= 0x00ff || c.r >= 0xff00)
972	&& (c.g <= 0x00ff || c.g >= 0xff00)
973	&& (c.b <= 0x00ff || c.b >= 0xff00))
974	bg_flags |= BG_TINT_BITAND;
975	}
976
977	if (has_shade || (bg_flags & BG_TINT_SET))
978	bg_flags |= BG_NEEDS_TINT;
979	}
980
981	bool	407	bool
982	rxvt_term::bg_set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
983	{	409	{
984	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	410	if (!tint_set || tint != new_tint)
985	{	411	{
986	tint = new_tint;	412	tint = new_tint;
987	bg_flags |= BG_TINT_SET;	413	tint_set = true;
988	set_tint_shade_flags ();	414
989	return true;	415	return true;
990	}	416	}
991		417
992	return false;	418	return false;
993	}	419	}
994		420
995	bool	421	bool
996	rxvt_term::bg_set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
997	{	423	{
998	int new_shade = (shade_str) ? atoi (shade_str) : 100;	424	int new_shade = atoi (shade_str);
999		425
1000	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
1001	if (new_shade < 0)	427	if (new_shade < 0)
1002	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
1003		429
1004	if (new_shade != shade)	430	if (new_shade != shade)
1005	{	431	{
1006	shade = new_shade;	432	shade = new_shade;
1007	set_tint_shade_flags ();
1008	return true;	433	return true;
1009	}	434	}
1010		435
1011	return false;	436	return false;
1012	}	437	}
1013		438
1014	#if XRENDER	439	# if BG_IMAGE_FROM_ROOT
1015	static void
1016	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1017	{
1018	double sigma = radius / 2.0;
1019	double scale = sqrt (2.0 * M_PI) * sigma;
1020	double sum = 0.0;
1021
1022	for (int i = 0; i < width; i++)
1023	{
1024	double x = i - width / 2;
1025	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1026	sum += kernel[i];
1027	}
1028
1029	params[0] = XDoubleToFixed (width);
1030	params[1] = XDoubleToFixed (1);
1031
1032	for (int i = 0; i < width; i++)
1033	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1034	}
1035	#endif
1036
1037	bool
1038	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1039	{
1040	bool ret = false;
1041	#if XRENDER
1042	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1043	double *kernel = (double *)malloc (size * sizeof (double));
1044	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1045
1046	XRenderPictureAttributes pa;
1047	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1048
1049	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1050	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1051
1052	if (kernel && params && src && dst)
1053	{
1054	if (h_blurRadius)
1055	{
1056	size = h_blurRadius * 2 + 1;
1057	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1058
1059	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1060	XRenderComposite (dpy,
1061	PictOpSrc,
1062	src,
1063	None,
1064	dst,
1065	0, 0,
1066	0, 0,
1067	0, 0,
1068	width, height);
1069	}
1070
1071	if (v_blurRadius)
1072	{
1073	size = v_blurRadius * 2 + 1;
1074	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1075	::swap (params[0], params[1]);
1076
1077	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1078	XRenderComposite (dpy,
1079	PictOpSrc,
1080	src,
1081	None,
1082	dst,
1083	0, 0,
1084	0, 0,
1085	0, 0,
1086	width, height);
1087	}
1088
1089	ret = true;
1090	}
1091
1092	free (kernel);
1093	free (params);
1094	XRenderFreePicture (dpy, src);
1095	XRenderFreePicture (dpy, dst);
1096	#endif
1097	return ret;
1098	}
1099
1100	bool
1101	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1102	{
1103	bool ret = false;
1104
1105	if (bg_flags & BG_TINT_BITAND)
1106	{
1107	XGCValues gcv;
1108	GC gc;
1109
1110	/* In this case we can tint image server-side getting significant
1111	* performance improvements, as we eliminate XImage transfer
1112	*/
1113	gcv.foreground = Pixel (tint);
1114	gcv.function = GXand;
1115	gcv.fill_style = FillSolid;
1116	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1117	if (gc)
1118	{
1119	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1120	ret = true;
1121	XFreeGC (dpy, gc);
1122	}
1123	}
1124	else
1125	{
1126	# if XRENDER
1127	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1128
1129	if (bg_flags & BG_TINT_SET)
1130	tint.get (c);
1131
1132	if (shade <= 100)
1133	{
1134	c.r = c.r * shade / 100;
1135	c.g = c.g * shade / 100;
1136	c.b = c.b * shade / 100;
1137	}
1138	else
1139	{
1140	c.r = c.r * (200 - shade) / 100;
1141	c.g = c.g * (200 - shade) / 100;
1142	c.b = c.b * (200 - shade) / 100;
1143	}
1144
1145	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1146	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1147	XRenderPictureAttributes pa;
1148
1149	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1150
1151	pa.repeat = True;
1152
1153	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1154	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1155	XFreePixmap (dpy, overlay_pmap);
1156
1157	pa.component_alpha = True;
1158	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1159	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1160	XFreePixmap (dpy, mask_pmap);
1161
1162	if (mask_pic && overlay_pic && back_pic)
1163	{
1164	XRenderColor mask_c;
1165
1166	mask_c.alpha = 0xffff;
1167	mask_c.red =
1168	mask_c.green =
1169	mask_c.blue = 0;
1170	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1171
1172	mask_c.alpha = 0;
1173	mask_c.red = 0xffff - c.r;
1174	mask_c.green = 0xffff - c.g;
1175	mask_c.blue = 0xffff - c.b;
1176	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1177	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1178
1179	if (shade > 100)
1180	{
1181	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1182	mask_c.alpha = 0;
1183	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1184
1185	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1186	}
1187
1188	ret = true;
1189	}
1190
1191	XRenderFreePicture (dpy, mask_pic);
1192	XRenderFreePicture (dpy, overlay_pic);
1193	XRenderFreePicture (dpy, back_pic);
1194	# endif
1195	}
1196
1197	return ret;
1198	}
1199
1200	/*	440	/*
1201	* Builds a pixmap of the same size as the terminal window that contains	441	* Builds a pixmap of the same size as the terminal window that contains
1202	* the tiled portion of the root pixmap that is supposed to be covered by	442	* the tiled portion of the root pixmap that is supposed to be covered by
1203	* our window.	443	* our window.
1204	*/	444	*/
1205	unsigned long	445	bool
1206	rxvt_term::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
1207	{	447	{
1208	unsigned long result = 0;
1209
1210	/* root dimensions may change from call to call - but Display structure should	448	/* root dimensions may change from call to call - but Display structure should
1211	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
1212	*/	450	*/
1213	int screen = display->screen;	451	int screen = display->screen;
1214	int root_depth = DefaultDepth (dpy, screen);
1215	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
1216	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
1217	unsigned int root_pmap_width, root_pmap_height;
1218	int window_width = szHint.width;	454	int parent_width = szHint.width;
1219	int window_height = szHint.height;	455	int parent_height = szHint.height;
1220	int sx, sy;	456	int sx, sy;
1221	XGCValues gcv;
1222	GC gc;
1223		457
1224	sx = target_x;	458	sx = parent_x;
1225	sy = target_y;	459	sy = parent_y;
		460
		461	if (!root_img)
		462	return false;
1226		463
1227	/* check if we are outside of the visible part of the virtual screen : */	464	/* check if we are outside of the visible part of the virtual screen : */
1228	if (sx + window_width <= 0 || sy + window_height <= 0	465	if (sx + parent_width <= 0 || sy + parent_height <= 0
1229	|| sx >= root_width || sy >= root_height)	466	|| sx >= root_width || sy >= root_height)
1230	return 0;	467	return 0;
1231		468
1232	// validate root pixmap and get its size	469	while (sx < 0) sx += root_img->w;
1233	if (root_pixmap != None)	470	while (sy < 0) sy += root_img->h;
1234	{
1235	Window wdummy;
1236	int idummy;
1237	unsigned int udummy;
1238		471
1239	allowedxerror = -1;	472	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1240		473
1241	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	474	if (root_effects.need_blur ())
1242	root_pixmap = None;	475	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1243		476
1244	allowedxerror = 0;	477	if (root_effects.need_tint ())
1245	}	478	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1246		479
1247	Pixmap recoded_root_pmap = root_pixmap;
1248
1249	if (root_pixmap != None && root_depth != depth)
1250	{
1251	#if XRENDER
1252	if (bg_flags & BG_HAS_RENDER)
1253	{
1254	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1255
1256	if (recoded_root_pmap != None)
1257	{
1258	XRenderPictureAttributes pa;
1259
1260	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1261	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1262
1263	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	480	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1264	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	481	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1265		482
1266	if (src && dst)	483	delete bg_img;
1267	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	484	bg_img = img;
1268	else
1269	{
1270	XFreePixmap (dpy, recoded_root_pmap);
1271	recoded_root_pmap = None;
1272	}
1273		485
1274	XRenderFreePicture (dpy, src);
1275	XRenderFreePicture (dpy, dst);
1276	}
1277	}
1278	else
1279	#endif
1280	recoded_root_pmap = None;
1281	}
1282
1283	if (recoded_root_pmap == None)
1284	return 0;
1285
1286	if (bg_pixmap == None
1287	|| bg_pmap_width != window_width
1288	|| bg_pmap_height != window_height)
1289	{
1290	if (bg_pixmap)
1291	XFreePixmap (dpy, bg_pixmap);
1292	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1293	bg_pmap_width = window_width;
1294	bg_pmap_height = window_height;
1295	}
1296
1297	if (bg_pixmap != None)
1298	{
1299	/* straightforward pixmap copy */
1300	while (sx < 0) sx += (int)root_width;
1301	while (sy < 0) sy += (int)root_height;
1302
1303	gcv.tile = recoded_root_pmap;
1304	gcv.fill_style = FillTiled;
1305	gcv.ts_x_origin = -sx;
1306	gcv.ts_y_origin = -sy;
1307	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1308
1309	if (gc)
1310	{
1311	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1312	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1313	XFreeGC (dpy, gc);
1314
1315	if (!(bg_flags & BG_CLIENT_RENDER))
1316	{
1317	if ((bg_flags & BG_NEEDS_BLUR)
1318	&& (bg_flags & BG_HAS_RENDER_CONV))
1319	{
1320	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1321	result &= ~BG_NEEDS_BLUR;
1322	}
1323	if ((bg_flags & BG_NEEDS_TINT)
1324	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1325	{
1326	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1327	result &= ~BG_NEEDS_TINT;
1328	}
1329	} /* server side rendering completed */
1330	}
1331	}
1332
1333	if (recoded_root_pmap != root_pixmap)
1334	XFreePixmap (dpy, recoded_root_pmap);
1335
1336	return result;	486	return true;
1337	}	487	}
1338		488
1339	void	489	void
1340	rxvt_term::bg_set_root_pixmap ()	490	rxvt_term::bg_set_root_pixmap ()
1341	{	491	{
1342	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	492	delete root_img;
1343	if (new_root_pixmap == None)	493	root_img = rxvt_img::new_from_root (this);
1344	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1345
1346	root_pixmap = new_root_pixmap;
1347	}	494	}
1348	# endif /* ENABLE_TRANSPARENCY */	495	# endif /* BG_IMAGE_FROM_ROOT */
1349		496
1350	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	497	void
1351	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1352	# endif
1353
1354	bool
1355	rxvt_term::bg_render ()	498	rxvt_term::bg_render ()
1356	{	499	{
1357	unsigned long tr_flags = 0;	500	if (bg_flags & BG_INHIBIT_RENDER)
		501	return;
1358		502
1359	bg_invalidate ();	503	bg_flags &= BG_INHIBIT_RENDER;
1360	# ifdef ENABLE_TRANSPARENCY	504
1361	if (bg_flags & BG_IS_TRANSPARENT)	505	# if BG_IMAGE_FROM_ROOT
		506	if (option (Opt_transparent))
1362	{	507	{
1363	/* we need to re-generate transparency pixmap in that case ! */	508	/* we need to re-generate transparency pixmap in that case ! */
1364	tr_flags = make_transparency_pixmap ();	509	if (render_root_image ())
1365	if (tr_flags == 0)	510	bg_flags |= BG_IS_VALID | BG_IS_TRANSPARENT;
1366	return false;	511	}
1367	else if (!(tr_flags & BG_EFFECTS_FLAGS))	512	# endif
		513
		514	# if BG_IMAGE_FROM_FILE
		515	if (fimage.img)
		516	{
		517	if (render_image (fimage))
1368	bg_flags |= BG_IS_VALID;	518	bg_flags |= BG_IS_VALID;
1369	}	519	}
1370	# endif	520	# endif
1371		521
1372	# ifdef BG_IMAGE_FROM_FILE
1373	if ((bg_flags & BG_IS_FROM_FILE)
1374	|| (tr_flags & BG_EFFECTS_FLAGS))
1375	{
1376	if (render_image (tr_flags))
1377	bg_flags |= BG_IS_VALID;
1378	}
1379	# endif
1380
1381	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1382	XImage *result = NULL;
1383
1384	if (tr_flags && !(bg_flags & BG_IS_VALID))
1385	{
1386	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1387	}
1388
1389	if (result)
1390	{
1391	/* our own client-side tinting */
1392	if (tr_flags & BG_NEEDS_TINT)
1393	{
1394	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1395	if (bg_flags & BG_TINT_SET)
1396	tint.get (c);
1397	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1398	}
1399
1400	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1401
1402	if (gc)
1403	{
1404	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1405
1406	XFreeGC (dpy, gc);
1407	bg_flags |= BG_IS_VALID;
1408	}
1409
1410	XDestroyImage (result);
1411	}
1412	# endif
1413
1414	if (!(bg_flags & BG_IS_VALID))	522	if (!(bg_flags & BG_IS_VALID))
1415	{	523	{
1416	if (bg_pixmap != None)	524	delete bg_img;
1417	{	525	bg_img = 0;
1418	XFreePixmap (dpy, bg_pixmap);
1419	bg_pixmap = None;
1420	}
1421	}	526	}
1422		527
1423	scr_recolour (false);	528	scr_recolour (false);
1424	bg_flags |= BG_NEEDS_REFRESH;	529	bg_flags |= BG_NEEDS_REFRESH;
1425		530
1426	bg_valid_since = ev::now ();	531	bg_valid_since = ev::now ();
1427
1428	return true;
1429	}	532	}
1430		533
1431	void	534	void
1432	rxvt_term::bg_init ()	535	rxvt_term::bg_init ()
1433	{	536	{
1434	#ifdef ENABLE_TRANSPARENCY	537	#if BG_IMAGE_FROM_ROOT
1435	shade = 100;	538	if (option (Opt_transparent))
		539	{
		540	if (rs [Rs_blurradius])
		541	root_effects.set_blur (rs [Rs_blurradius]);
		542
		543	if (ISSET_PIXCOLOR (Color_tint))
		544	root_effects.set_tint (pix_colors_focused [Color_tint]);
		545
		546	if (rs [Rs_shade])
		547	root_effects.set_shade (rs [Rs_shade]);
		548
		549	bg_set_root_pixmap ();
		550	XSelectInput (dpy, display->root, PropertyChangeMask);
		551	rootwin_ev.start (display, display->root);
		552	}
1436	#endif	553	#endif
1437		554
1438	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	555	#if BG_IMAGE_FROM_FILE
1439	#if XRENDER	556	if (rs[Rs_backgroundPixmap])
1440	int major, minor;
1441	if (XRenderQueryVersion (dpy, &major, &minor))
1442	bg_flags |= BG_HAS_RENDER;
1443	XFilters *filters = XRenderQueryFilters (dpy, vt);
1444	if (filters)
1445	{	557	{
1446	for (int i = 0; i < filters->nfilter; i++)	558	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1447	if (!strcmp (filters->filter[i], FilterConvolution))	559	if (!bg_window_position_sensitive ())
1448	bg_flags |= BG_HAS_RENDER_CONV;	560	update_background ();
1449
1450	XFree (filters);
1451	}	561	}
1452	#endif	562	#endif
1453	}	563	}
1454		564
		565	void
		566	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		567	{
		568	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		569
		570	if (tint_set)
		571	tint.get (c);
		572
		573	if (shade > 100)
		574	{
		575	c.r = c.r * (200 - shade) / 100;
		576	c.g = c.g * (200 - shade) / 100;
		577	c.b = c.b * (200 - shade) / 100;
		578	}
		579	else
		580	{
		581	c.r = c.r * shade / 100;
		582	c.g = c.g * shade / 100;
		583	c.b = c.b * shade / 100;
		584	}
		585
		586	img->contrast (c.r, c.g, c.b, c.a);
		587
		588	if (shade > 100)
		589	{
		590	c.a = 0xffff;
		591	c.r =
		592	c.g =
		593	c.b = 0xffff * (shade - 100) / 100;
		594	img->brightness (c.r, c.g, c.b, c.a);
		595	}
		596	}
		597
1455	#endif /* HAVE_BG_PIXMAP */	598	#endif /* HAVE_BG_PIXMAP */
1456
1457	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1458	/* taken from aterm-0.4.2 */
1459
1460	static void
1461	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1462	{
1463	int sh_r, sh_g, sh_b;
1464	uint32_t mask_r, mask_g, mask_b;
1465	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1466	rgba low;
1467	rgba high;
1468	int i;
1469	int host_byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
1470
1471	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1472
1473	/* for convenience */
1474	mask_r = visual->red_mask;
1475	mask_g = visual->green_mask;
1476	mask_b = visual->blue_mask;
1477
1478	/* boring lookup table pre-initialization */
1479	switch (ximage->depth)
1480	{
1481	case 15:
1482	if ((mask_r != 0x7c00) ||
1483	(mask_g != 0x03e0) ||
1484	(mask_b != 0x001f))
1485	return;
1486	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1487	lookup_r = lookup;
1488	lookup_g = lookup+32;
1489	lookup_b = lookup+32+32;
1490	sh_r = 10;
1491	sh_g = 5;
1492	sh_b = 0;
1493	break;
1494	case 16:
1495	if ((mask_r != 0xf800) ||
1496	(mask_g != 0x07e0) ||
1497	(mask_b != 0x001f))
1498	return;
1499	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1500	lookup_r = lookup;
1501	lookup_g = lookup+32;
1502	lookup_b = lookup+32+64;
1503	sh_r = 11;
1504	sh_g = 5;
1505	sh_b = 0;
1506	break;
1507	case 24:
1508	if ((mask_r != 0xff0000) ||
1509	(mask_g != 0x00ff00) ||
1510	(mask_b != 0x0000ff))
1511	return;
1512	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1513	lookup_r = lookup;
1514	lookup_g = lookup+256;
1515	lookup_b = lookup+256+256;
1516	sh_r = 16;
1517	sh_g = 8;
1518	sh_b = 0;
1519	break;
1520	case 32:
1521	if ((mask_r != 0xff0000) ||
1522	(mask_g != 0x00ff00) ||
1523	(mask_b != 0x0000ff))
1524	return;
1525	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1526	lookup_r = lookup;
1527	lookup_g = lookup+256;
1528	lookup_b = lookup+256+256;
1529	sh_r = 16;
1530	sh_g = 8;
1531	sh_b = 0;
1532	break;
1533	default:
1534	return; /* we do not support this color depth */
1535	}
1536
1537	/* prepare limits for color transformation (each channel is handled separately) */
1538	if (shade > 100)
1539	{
1540	shade = 200 - shade;
1541
1542	high.r = c.r * shade / 100;
1543	high.g = c.g * shade / 100;
1544	high.b = c.b * shade / 100;
1545
1546	low.r = 65535 * (100 - shade) / 100;
1547	low.g = 65535 * (100 - shade) / 100;
1548	low.b = 65535 * (100 - shade) / 100;
1549	}
1550	else
1551	{
1552	high.r = c.r * shade / 100;
1553	high.g = c.g * shade / 100;
1554	high.b = c.b * shade / 100;
1555
1556	low.r = low.g = low.b = 0;
1557	}
1558
1559	/* fill our lookup tables */
1560	for (i = 0; i <= mask_r>>sh_r; i++)
1561	{
1562	uint32_t tmp;
1563	tmp = i * high.r;
1564	tmp += (mask_r>>sh_r) * low.r;
1565	lookup_r[i] = (tmp/65535)<<sh_r;
1566	}
1567	for (i = 0; i <= mask_g>>sh_g; i++)
1568	{
1569	uint32_t tmp;
1570	tmp = i * high.g;
1571	tmp += (mask_g>>sh_g) * low.g;
1572	lookup_g[i] = (tmp/65535)<<sh_g;
1573	}
1574	for (i = 0; i <= mask_b>>sh_b; i++)
1575	{
1576	uint32_t tmp;
1577	tmp = i * high.b;
1578	tmp += (mask_b>>sh_b) * low.b;
1579	lookup_b[i] = (tmp/65535)<<sh_b;
1580	}
1581
1582	/* apply table to input image (replacing colors by newly calculated ones) */
1583	if (ximage->bits_per_pixel == 32
1584	&& (ximage->depth == 24 || ximage->depth == 32)
1585	&& ximage->byte_order == host_byte_order)
1586	{
1587	uint32_t *p1, *pf, *p, *pl;
1588	p1 = (uint32_t *) ximage->data;
1589	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1590
1591	while (p1 < pf)
1592	{
1593	p = p1;
1594	pl = p1 + ximage->width;
1595	for (; p < pl; p++)
1596	{
1597	*p = lookup_r[(*p & 0xff0000) >> 16] |
1598	lookup_g[(*p & 0x00ff00) >> 8] |
1599	lookup_b[(*p & 0x0000ff)] |
1600	(*p & 0xff000000);
1601	}
1602	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1603	}
1604	}
1605	else
1606	{
1607	for (int y = 0; y < ximage->height; y++)
1608	for (int x = 0; x < ximage->width; x++)
1609	{
1610	unsigned long pixel = XGetPixel (ximage, x, y);
1611	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1612	lookup_g[(pixel & mask_g) >> sh_g] |
1613	lookup_b[(pixel & mask_b) >> sh_b];
1614	XPutPixel (ximage, x, y, pixel);
1615	}
1616	}
1617
1618	free (lookup);
1619	}
1620	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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