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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.143 by sf-exg, Fri Jan 28 00:08:57 2011 UTC vs.
Revision 1.244 by root, Sun Jun 17 21:58:18 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 <pcg@goof.com>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
20	* You should have received a copy of the GNU General Public License	20	* You should have received a copy of the GNU General Public License
21	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
24		24
25	#include <cmath>
26	#include "../config.h" /* NECESSARY */	25	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	26	#include "rxvt.h" /* NECESSARY */
28		27
29	#if XRENDER
30	# include <X11/extensions/Xrender.h>
31	#endif
32
33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"
35	#endif
36
37	/*
38	* Pixmap geometry string interpretation :
39	* Each geometry string contains zero or one scale/position
40	* adjustment and may optionally be followed by a colon and one or more
41	* colon-delimited pixmap operations.
42	* The following table shows the valid geometry strings and their
43	* effects on the background image :
44	*
45	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
46	* W and H are percentages of the terminal window size.
47	* X and Y are also percentages; e.g., +50+50 centers
48	* the image in the window.
49	*
50	* Pixmap Operations : (should be prepended by a colon)
51	* tile Tile image. Scaling/position modifiers above will affect
52	* the tile size and origin.
53	* propscale When scaling, scale proportionally. That is, maintain the
54	* proper aspect ratio for the image. Any portion of the
55	* background not covered by the image is filled with the
56	* current background color.
57	* hscale Scale horizontally, tile vertically ?
58	* vscale Tile horizontally, scale vertically ?
59	* scale Scale both up and down
60	* auto Same as 100x100+50+50
61	*/
62
63	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
64	void	30	void
65	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
66	{	32	{
67	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
68	if (original_asim)	34	delete root_img;
69	safe_asimage_destroy (original_asim);	35	root_img = 0;
70	#endif	36	# endif
71		37
72	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
73	if (pixbuf)	39	fimage.destroy ();
74	g_object_unref (pixbuf);
75	#endif	40	# endif
76		41
77	if (bg_pixmap)	42	delete bg_img;
78	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
79	}
80
81	bool
82	rxvt_term::bg_set_position (int x, int y)
83	{
84
85	if (target_x != x
86	|| target_y != y)
87	{
88	target_x = x;
89	target_y = y;
90	return true;
91	}
92	return false;
93	}	44	}
94		45
95	bool	46	bool
96	rxvt_term::bg_window_size_sensitive ()	47	rxvt_term::bg_window_size_sensitive ()
97	{	48	{
98	# ifdef ENABLE_TRANSPARENCY	49	# if ENABLE_TRANSPARENCY
99	if (bg_flags & BG_IS_TRANSPARENT)	50	if (bg_flags & BG_IS_TRANSPARENT)
100	return true;	51	return true;
101	# endif	52	# endif
102		53
103	# ifdef BG_IMAGE_FROM_FILE	54	# if BG_IMAGE_FROM_FILE
104	if (have_image)	55	if (fimage.img)
105	{	56	{
106	if (bg_flags & BG_IS_SIZE_SENSITIVE)	57	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		58	|| fimage.img->w > szHint.width
		59	|| fimage.img->h > szHint.height)
107	return true;	60	return true;
108	}	61	}
109	# endif	62	# endif
110		63
111	return false;	64	return false;
112	}	65	}
113		66
114	bool	67	bool
115	rxvt_term::bg_window_position_sensitive ()	68	rxvt_term::bg_window_position_sensitive ()
116	{	69	{
117	# ifdef ENABLE_TRANSPARENCY	70	# if ENABLE_TRANSPARENCY
118	if (bg_flags & BG_IS_TRANSPARENT)	71	if (bg_flags & BG_IS_TRANSPARENT)
119	return true;	72	return true;
120	# endif	73	# endif
121		74
122	# ifdef BG_IMAGE_FROM_FILE	75	# if BG_IMAGE_FROM_FILE
123	if (have_image)	76	if (fimage.img)
124	{	77	{
125	if (bg_flags & BG_ROOT_ALIGN)	78	if (fimage.flags & IM_ROOT_ALIGN)
126	return true;	79	return true;
127	}	80	}
128	# endif	81	# endif
129		82
130	return false;	83	return false;
131	}	84	}
132		85
133	# ifdef BG_IMAGE_FROM_FILE	86	# if BG_IMAGE_FROM_FILE
134	static inline bool
135	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
136	{
137	if (geom_flags & flag)
138	{
139	if (new_value > 1000)
140	new_value = 1000;
141	if (new_value != scale)
142	{
143	scale = new_value;
144	return true;
145	}
146	}
147	return false;
148	}
149
150	static inline bool
151	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
152	{
153	if (geom_flags & flag)
154	{
155	if (new_value < -100)
156	new_value = -100;
157	else if (new_value > 200)
158	new_value = 200;
159	if (new_value != align)
160	{
161	align = new_value;
162	return true;
163	}
164	}
165	return false;
166	}
167
168	static inline int	87	static inline int
169	make_align_position (int align, int window_size, int image_size)	88	make_align_position (int align, int window_size, int image_size)
170	{	89	{
171	int diff = window_size - image_size;
172	int smaller = min (image_size, window_size);
173
174	if (align >= 0 && align <= 100)	90	if (align >= 0 && align <= 100)
175	return diff * align / 100;	91	return lerp (0, window_size - image_size, align);
176	else if (align > 100 && align <= 200)	92	else if (align > 100)
177	return ((align - 100) * smaller / 100) + window_size - smaller;	93	return lerp (window_size - image_size, window_size, align - 100);
178	else if (align >= -100 && align < 0)	94	else
179	return ((align + 100) * smaller / 100) - image_size;	95	return lerp (-image_size, 0, align + 100);
180	return 0;
181	}	96	}
182		97
183	static inline int	98	static void
184	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)
185	{	100	{
186	int src_pos = 0;	101	if (!strcasecmp (style, "tiled"))
187	dst_pos = pos;
188	dst_size = size;
189	if (pos < 0)
190	{
191	src_pos = -pos;
192	dst_pos = 0;
193	dst_size += pos;
194	}	102	{
195		103	flags = IM_TILE;
196	if (dst_pos + dst_size > target_size)	104	w = h = noScale;
197	dst_size = target_size - dst_pos;	105	x = y = 0;
198	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	}
199	}	131	}
200		132
201	bool	133	bool
202	rxvt_term::bg_set_geometry (const char *geom, bool update)	134	rxvt_image::set_geometry (const char *geom, bool update)
203	{	135	{
204	bool changed = false;	136	bool changed = false;
205	int geom_flags = 0;	137	int geom_flags = 0;
206	int x = 0, y = 0;	138	int x = h_align;
		139	int y = v_align;
207	unsigned int w = 0, h = 0;	140	unsigned int w = h_scale;
208	unsigned int n;	141	unsigned int h = v_scale;
209	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	142	uint8_t new_flags = 0;
210	const char *ops;
211		143
212	if (geom == NULL)	144	if (geom == NULL)
213	return false;	145	return false;
214		146
215	char str[256];	147	if (geom[0])
216
217	ops = strchr (geom, ':');
218	if (ops == NULL)
219	n = strlen (geom);
220	else
221	n = ops - geom;
222
223	if (n >= sizeof (str))
224	return false;
225
226	memcpy (str, geom, n);
227	str[n] = '\0';
228	rxvt_strtrim (str);
229
230	if (str[0])
231	{	148	{
232	/* we have geometry string - let's handle it prior to applying ops */	149	char **arr = rxvt_strsplit (':', geom);
		150
		151	for (int i = 0; arr[i]; i++)
		152	{
		153	if (!strncasecmp (arr[i], "style=", 6))
		154	{
		155	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		156	geom_flags = WidthValue|HeightValue|XValue|YValue;
		157	}
		158	else if (!strcasecmp (arr[i], "op=tile"))
		159	new_flags |= IM_TILE;
		160	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		161	new_flags |= IM_KEEP_ASPECT;
		162	else if (!strcasecmp (arr[i], "op=root-align"))
		163	new_flags |= IM_ROOT_ALIGN;
		164
		165	// deprecated
		166	else if (!strcasecmp (arr[i], "tile"))
		167	{
		168	new_flags |= IM_TILE;
		169	w = h = noScale;
		170	geom_flags |= WidthValue|HeightValue;
		171	}
		172	else if (!strcasecmp (arr[i], "propscale"))
		173	{
		174	new_flags |= IM_KEEP_ASPECT;
		175	w = h = windowScale;
		176	geom_flags |= WidthValue|HeightValue;
		177	}
		178	else if (!strcasecmp (arr[i], "hscale"))
		179	{
		180	new_flags |= IM_TILE;
		181	w = windowScale;
		182	h = noScale;
		183	geom_flags |= WidthValue|HeightValue;
		184	}
		185	else if (!strcasecmp (arr[i], "vscale"))
		186	{
		187	new_flags |= IM_TILE;
		188	h = windowScale;
		189	w = noScale;
		190	geom_flags |= WidthValue|HeightValue;
		191	}
		192	else if (!strcasecmp (arr[i], "scale"))
		193	{
		194	w = h = windowScale;
		195	geom_flags |= WidthValue|HeightValue;
		196	}
		197	else if (!strcasecmp (arr[i], "auto"))
		198	{
		199	w = h = windowScale;
		200	x = y = centerAlign;
		201	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		202	}
		203	else if (!strcasecmp (arr[i], "root"))
		204	{
		205	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		206	w = h = noScale;
		207	geom_flags |= WidthValue|HeightValue;
		208	}
		209
		210	else
233	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	211	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
234	} /* done parsing geometry string */	212	} /* done parsing ops */
		213
		214	rxvt_free_strsplit (arr);
		215	}
		216
		217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
235		218
236	if (!update)	219	if (!update)
237	{	220	{
238	if (!(geom_flags & XValue))	221	if (!(geom_flags & XValue))
239	x = y = defaultAlign;	222	x = y = defaultAlign;
…		…
244	w = h = defaultScale;	227	w = h = defaultScale;
245	else if (!(geom_flags & HeightValue))	228	else if (!(geom_flags & HeightValue))
246	h = w;	229	h = w;
247	else if (!(geom_flags & WidthValue))	230	else if (!(geom_flags & WidthValue))
248	w = h;	231	w = h;
249
250	geom_flags |= WidthValue|HeightValue|XValue|YValue;
251	}
252
253	if (ops)
254	{	232	}
255	char **arr = rxvt_strsplit (':', ops + 1);
256		233
257	for (int i = 0; arr[i]; i++)	234	clamp_it (x, -100, 200);
258	{	235	clamp_it (y, -100, 200);
259	if (!strcasecmp (arr[i], "tile"))
260	{
261	w = h = noScale;
262	geom_flags |= WidthValue|HeightValue;
263	}
264	else if (!strcasecmp (arr[i], "propscale"))
265	{
266	new_flags |= BG_PROP_SCALE;
267	}
268	else if (!strcasecmp (arr[i], "hscale"))
269	{
270	if (w == 0) w = windowScale;
271		236
272	h = noScale;	237	if (flags != new_flags
273	geom_flags |= WidthValue|HeightValue;	238	|| h_scale != w
274	}	239	|| v_scale != h
275	else if (!strcasecmp (arr[i], "vscale"))	240	|| h_align != x
276	{	241	|| v_align != y)
277	if (h == 0) h = windowScale;
278
279	w = noScale;
280	geom_flags |= WidthValue|HeightValue;
281	}
282	else if (!strcasecmp (arr[i], "scale"))
283	{
284	if (h == 0) h = windowScale;
285	if (w == 0) w = windowScale;
286
287	geom_flags |= WidthValue|HeightValue;
288	}
289	else if (!strcasecmp (arr[i], "auto"))
290	{
291	w = h = windowScale;
292	x = y = centerAlign;
293	geom_flags |= WidthValue|HeightValue|XValue|YValue;
294	}
295	else if (!strcasecmp (arr[i], "root"))
296	{
297	new_flags |= BG_ROOT_ALIGN;
298	w = h = noScale;
299	geom_flags |= WidthValue|HeightValue;
300	}
301	} /* done parsing ops */
302
303	rxvt_free_strsplit (arr);
304	}	242	{
305
306	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
307	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
308	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
309	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
310
311	if (new_flags != bg_flags)
312	{
313	bg_flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
314	changed = true;	248	changed = true;
315	}	249	}
316		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
317	return changed;	256	return changed;
318	}	257	}
319		258
320	void	259	void
321	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)
322	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
323	int target_width = szHint.width;	264	int parent_width = szHint.width;
324	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);
325		268
326	if (bg_flags & BG_PROP_SCALE)	269	w = h_scale * parent_width / 100;
		270	h = v_scale * parent_height / 100;
		271
		272	if (image.flags & IM_KEEP_ASPECT)
327	{	273	{
328	float scale = (float)target_width / image_width;	274	float scale = (float)w / image_width;
329	min_it (scale, (float)target_height / image_height);	275	min_it (scale, (float)h / image_height);
330	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
331	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
332	}	278	}
333	else
334	{
335	w = h_scale * target_width / 100;
336	h = v_scale * target_height / 100;
337	}
338		279
339	if (!w) w = image_width;	280	if (!w) w = image_width;
340	if (!h) h = image_height;	281	if (!h) h = image_height;
341		282
342	if (bg_flags & BG_ROOT_ALIGN)	283	if (image.flags & IM_ROOT_ALIGN)
343	{	284	{
344	x = -target_x;	285	x = -parent_x;
345	y = -target_y;	286	y = -parent_y;
346	}	287	}
347	else	288	else
348	{	289	{
349	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
350	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
351	}
352
353	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
354	if ((bg_flags & BG_PROP_SCALE) || h_scale || v_scale
355	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
356	|| w > target_width || h > target_height)
357	bg_flags |= BG_IS_SIZE_SENSITIVE;
358	}
359
360	# ifdef HAVE_AFTERIMAGE
361	bool
362	rxvt_term::render_image (unsigned long tr_flags)
363	{
364	init_asv ();
365
366	ASImage *background = NULL;
367	ARGB32 background_tint = TINT_LEAVE_SAME;
368
369	# ifdef ENABLE_TRANSPARENCY
370	if (tr_flags)
371	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
372
373	if (tr_flags & BG_NEEDS_TINT)
374	{	292	}
375	ShadingInfo as_shade;	293	}
376	as_shade.shading = shade;
377		294
378	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
379	if (bg_flags & BG_TINT_SET)	296	rxvt_term::render_image (rxvt_image &image)
380	tint.get (c);	297	{
381	as_shade.tintColor.red = c.r;
382	as_shade.tintColor.green = c.g;
383	as_shade.tintColor.blue = c.b;
384
385	background_tint = shading2tint32 (&as_shade);
386	}
387
388	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
389	{
390	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
391	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
392	100, ASIMAGE_QUALITY_DEFAULT);
393	if (tmp)
394	{
395	destroy_asimage (&background);
396	background = tmp;
397	}
398	}
399	# endif
400
401	ASImage *result = 0;
402
403	int target_width = szHint.width;	298	int parent_width = szHint.width;
404	int target_height = szHint.height;	299	int parent_height = szHint.height;
405	int new_pmap_width = target_width;
406	int new_pmap_height = target_height;
407		300
408	int x = 0;	301	int x = 0;
409	int y = 0;	302	int y = 0;
410	int w = 0;	303	int w = 0;
411	int h = 0;	304	int h = 0;
412		305
413	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
414	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
415		307
416	if (!original_asim	308	if (!(image.flags & IM_ROOT_ALIGN)
417	|| (!(bg_flags & BG_ROOT_ALIGN)
418	&& (x >= target_width	309	&& (x >= parent_width
419	|| y >= target_height	310	|| y >= parent_height
420	|| (x + w <= 0)	311	|| x + w <= 0
421	|| (y + h <= 0))))	312	|| y + h <= 0))
422	{	313	return false;
423	if (background)
424	{
425	new_pmap_width = background->width;
426	new_pmap_height = background->height;
427	result = background;
428		314
429	if (background_tint != TINT_LEAVE_SAME)	315	rxvt_img *img = image.img->scale (w, h);
430	{	316
431	ASImage *tmp = tile_asimage (asv, background, 0, 0,	317	if (image.flags & IM_TILE)
432	target_width, target_height, background_tint,	318	img->repeat_mode (RepeatNormal);
433	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
434	if (tmp)
435	result = tmp;
436	}
437	}
438	else
439	new_pmap_width = new_pmap_height = 0;
440	}
441	else	319	else
442	{	320	img->repeat_mode (RepeatNone);
443	result = original_asim;	321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
444		322
445	if ((w != original_asim->width)	323	if (bg_flags & BG_IS_VALID)
446	|| (h != original_asim->height))	324	bg_img->draw (img, PictOpOver, image.alpha * 1. / 0xffff);
447	{
448	result = scale_asimage (asv, original_asim,
449	w, h,
450	background ? ASA_ASImage : ASA_XImage,
451	100, ASIMAGE_QUALITY_DEFAULT);
452	}
453		325
454	if (background == NULL)	326	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
455	{	327	img->convert_format (format, pix_colors [Color_bg])->replace (img);
456	if (h_scale == 0 || v_scale == 0)
457	{
458	/* if tiling - pixmap has to be sized exactly as the image,
459	but there is no need to make it bigger than the window! */
460	new_pmap_width = min (result->width, target_width);
461	new_pmap_height = min (result->height, target_height);
462		328
463	/* we also need to tile our image in both directions */	329	delete bg_img;
464	ASImage *tmp = tile_asimage (asv, result,	330	bg_img = img;
465	(int)result->width - x,
466	(int)result->height - y,
467	new_pmap_width,
468	new_pmap_height,
469	TINT_LEAVE_SAME, ASA_XImage,
470	100, ASIMAGE_QUALITY_DEFAULT);
471	if (tmp)
472	{
473	if (result != original_asim)
474	destroy_asimage (&result);
475		331
476	result = tmp;
477	}
478	}
479	}
480	else
481	{
482	/* if blending background and image - pixmap has to be sized same as target window */
483	ASImageLayer *layers = create_image_layers (2);
484
485	layers[0].im = background;
486	layers[0].clip_width = target_width;
487	layers[0].clip_height = target_height;
488	layers[0].tint = background_tint;
489	layers[1].im = result;
490
491	if (h_scale == 0 || v_scale == 0)
492	{
493	/* tile horizontally */
494	while (x > 0) x -= (int)result->width;
495	layers[1].dst_x = x;
496	layers[1].clip_width = result->width+target_width;
497	}
498	else
499	{
500	/* clip horizontally */
501	layers[1].dst_x = x;
502	layers[1].clip_width = result->width;
503	}
504
505	if (h_scale == 0 || v_scale == 0)
506	{
507	while (y > 0) y -= (int)result->height;
508	layers[1].dst_y = y;
509	layers[1].clip_height = result->height + target_height;
510	}
511	else
512	{
513	layers[1].dst_y = y;
514	layers[1].clip_height = result->height;
515	}
516
517	if (rs[Rs_blendtype])
518	{
519	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
520	if (layers[1].merge_scanlines == NULL)
521	layers[1].merge_scanlines = alphablend_scanlines;
522	}
523
524	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
525	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
526
527	if (tmp)
528	{
529	if (result != original_asim)
530	destroy_asimage (&result);
531
532	result = tmp;
533	}
534
535	free (layers);
536	}
537	}
538
539	bool ret = false;
540
541	if (result)
542	{
543	XGCValues gcv;
544	GC gc;
545
546	/* create Pixmap */
547	if (bg_pixmap == None
548	|| bg_pmap_width != new_pmap_width
549	|| bg_pmap_height != new_pmap_height)
550	{
551	if (bg_pixmap)
552	XFreePixmap (dpy, bg_pixmap);
553	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
554	bg_pmap_width = new_pmap_width;
555	bg_pmap_height = new_pmap_height;
556	}
557	/* fill with background color (if result's not completely overlapping it) */
558	gcv.foreground = pix_colors[Color_bg];
559	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
560
561	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
562	int dst_width = result->width, dst_height = result->height;
563	if (background == NULL)
564	{
565	if (!(h_scale == 0 || v_scale == 0))
566	{
567	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
568	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
569	}
570
571	if (dst_x > 0 || dst_y > 0
572	|| dst_x + dst_width < new_pmap_width
573	|| dst_y + dst_height < new_pmap_height)
574	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
575	}
576
577	/* put result on pixmap */
578	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
579	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
580
581	if (result != background && result != original_asim)
582	destroy_asimage (&result);
583
584	XFreeGC (dpy, gc);
585
586	ret = true;
587	}
588
589	if (background)
590	destroy_asimage (&background);
591
592	return ret;
593	}
594	# endif /* HAVE_AFTERIMAGE */
595
596	# ifdef HAVE_PIXBUF
597	bool
598	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
599	int src_x, int src_y, int dst_x, int dst_y,
600	unsigned int width, unsigned int height)
601	{
602	XImage *ximage;
603	char *data, *line;
604	int bytes_per_pixel;
605	int width_r, width_g, width_b;
606	int sh_r, sh_g, sh_b;
607	int rowstride;
608	int channels;
609	unsigned char *row;
610
611	if (visual->c_class != TrueColor)
612	return false;
613
614	if (depth == 24 || depth == 32)
615	bytes_per_pixel = 4;
616	else if (depth == 15 || depth == 16)
617	bytes_per_pixel = 2;
618	else
619	return false;
620
621	width_r = rxvt_popcount (visual->red_mask);
622	width_g = rxvt_popcount (visual->green_mask);
623	width_b = rxvt_popcount (visual->blue_mask);
624
625	if (width_r > 8 || width_g > 8 || width_b > 8)
626	return false;
627
628	sh_r = rxvt_ctz (visual->red_mask);
629	sh_g = rxvt_ctz (visual->green_mask);
630	sh_b = rxvt_ctz (visual->blue_mask);
631
632	if (width > INT_MAX / height / bytes_per_pixel)
633	return false;
634
635	data = (char *)malloc (width * height * bytes_per_pixel);
636	if (!data)
637	return false;
638
639	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
640	width, height, bytes_per_pixel * 8, 0);
641	if (!ximage)
642	{
643	free (data);
644	return false;
645	}
646
647	ximage->byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
648
649	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
650	channels = gdk_pixbuf_get_n_channels (pixbuf);
651	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
652	line = data;
653
654	for (int y = 0; y < height; y++)
655	{
656	for (int x = 0; x < width; x++)
657	{
658	unsigned char *pixel = row + x * channels;
659	uint32_t value;
660
661	value = ((pixel[0] >> (8 - width_r)) << sh_r)
662	| ((pixel[1] >> (8 - width_g)) << sh_g)
663	| ((pixel[2] >> (8 - width_b)) << sh_b);
664
665	if (bytes_per_pixel == 4)
666	((uint32_t *)line)[x] = value;
667	else
668	((uint16_t *)line)[x] = value;
669	}
670
671	row += rowstride;
672	line += ximage->bytes_per_line;
673	}
674
675	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
676	XDestroyImage (ximage);
677	return true;	332	return true;
678	}	333	}
679		334
680	bool	335	rxvt_image::rxvt_image ()
681	rxvt_term::render_image (unsigned long tr_flags)
682	{	336	{
683	if (!pixbuf)	337	alpha = 0xffff;
684	return false;	338	flags = 0;
		339	h_scale =
		340	v_scale = defaultScale;
		341	h_align =
		342	v_align = defaultAlign;
685		343
686	if (tr_flags	344	img = 0;
687	&& !(bg_flags & BG_HAS_RENDER))
688	return false;
689
690	GdkPixbuf *result;
691
692	int image_width = gdk_pixbuf_get_width (pixbuf);
693	int image_height = gdk_pixbuf_get_height (pixbuf);
694
695	int target_width = szHint.width;
696	int target_height = szHint.height;
697	int new_pmap_width = target_width;
698	int new_pmap_height = target_height;
699
700	int x = 0;
701	int y = 0;
702	int w = 0;
703	int h = 0;
704
705	get_image_geometry (image_width, image_height, w, h, x, y);
706
707	if (!(bg_flags & BG_ROOT_ALIGN)
708	&& (x >= target_width
709	|| y >= target_height
710	|| (x + w <= 0)
711	|| (y + h <= 0)))
712	return false;
713
714	result = pixbuf;
715
716	if ((w != image_width)
717	|| (h != image_height))
718	{
719	result = gdk_pixbuf_scale_simple (pixbuf,
720	w, h,
721	GDK_INTERP_BILINEAR);
722	}
723
724	bool ret = false;
725
726	if (result)
727	{
728	XGCValues gcv;
729	GC gc;
730	Pixmap root_pmap;
731
732	image_width = gdk_pixbuf_get_width (result);
733	image_height = gdk_pixbuf_get_height (result);
734
735	if (tr_flags)
736	{
737	root_pmap = bg_pixmap;
738	bg_pixmap = None;
739	}
740	else
741	{
742	if (h_scale == 0 || v_scale == 0)
743	{
744	new_pmap_width = min (image_width, target_width);
745	new_pmap_height = min (image_height, target_height);
746	}
747	}
748
749	if (bg_pixmap == None
750	|| bg_pmap_width != new_pmap_width
751	|| bg_pmap_height != new_pmap_height)
752	{
753	if (bg_pixmap)
754	XFreePixmap (dpy, bg_pixmap);
755	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
756	bg_pmap_width = new_pmap_width;
757	bg_pmap_height = new_pmap_height;
758	}
759
760	gcv.foreground = pix_colors[Color_bg];
761	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
762
763	if (h_scale == 0 || v_scale == 0)
764	{
765	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
766	pixbuf_to_pixmap (result, tile, gc,
767	0, 0,
768	0, 0,
769	image_width, image_height);
770
771	gcv.tile = tile;
772	gcv.fill_style = FillTiled;
773	gcv.ts_x_origin = x;
774	gcv.ts_y_origin = y;
775	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
776
777	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
778	XFreePixmap (dpy, tile);
779	}
780	else
781	{
782	int src_x, src_y, dst_x, dst_y;
783	int dst_width, dst_height;
784
785	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
786	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
787
788	if (dst_x > 0 || dst_y > 0
789	|| dst_x + dst_width < new_pmap_width
790	|| dst_y + dst_height < new_pmap_height)
791	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
792
793	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
794	pixbuf_to_pixmap (result, bg_pixmap, gc,
795	src_x, src_y,
796	dst_x, dst_y,
797	dst_width, dst_height);
798	}
799
800	#if XRENDER
801	if (tr_flags)
802	{
803	XRenderPictureAttributes pa;
804
805	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);
806	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
807
808	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
809	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
810
811	pa.repeat = True;
812	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
813	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
814	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
815	XFreePixmap (dpy, mask_pmap);
816
817	if (src && dst && mask)
818	{
819	XRenderColor mask_c;
820
821	mask_c.alpha = 0x8000;
822	mask_c.red = 0;
823	mask_c.green = 0;
824	mask_c.blue = 0;
825	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
826	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
827	}
828
829	XRenderFreePicture (dpy, src);
830	XRenderFreePicture (dpy, dst);
831	XRenderFreePicture (dpy, mask);
832
833	XFreePixmap (dpy, root_pmap);
834	}
835	#endif
836
837	if (result != pixbuf)
838	g_object_unref (result);
839
840	XFreeGC (dpy, gc);
841
842	ret = true;
843	}
844
845	return ret;
846	}	345	}
847	# endif /* HAVE_PIXBUF */
848		346
849	bool	347	void
850	rxvt_term::bg_set_file (const char *file)	348	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
851	{	349	{
852	if (!file || !*file)	350	if (!file || !*file)
853	return false;	351	return;
854		352
855	if (const char *p = strchr (file, ';'))	353	const char *p = strchr (file, ';');
		354
		355	if (p)
856	{	356	{
857	size_t len = p - file;	357	size_t len = p - file;
858	char *f = rxvt_temp_buf<char> (len + 1);	358	char *f = rxvt_temp_buf<char> (len + 1);
859	memcpy (f, file, len);	359	memcpy (f, file, len);
860	f[len] = '\0';	360	f[len] = '\0';
861	file = f;	361	file = f;
862	}	362	}
863		363
864	# ifdef HAVE_AFTERIMAGE	364	set_file (s, file);
865	if (!asimman)	365	alpha = 0x8000;
866	asimman = create_generic_imageman (rs[Rs_path]);	366	set_geometry (p ? p + 1 : "");
867	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	367	}
868	if (image)
869	{
870	if (original_asim)
871	safe_asimage_destroy (original_asim);
872	original_asim = image;
873	bg_flags |= BG_CLIENT_RENDER;
874	have_image = true;
875	return true;
876	}
877	# endif
878		368
879	# ifdef HAVE_PIXBUF	369	void
880	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	370	rxvt_image::set_file (rxvt_screen *s, const char *file)
881	if (image)	371	{
882	{	372	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
883	if (pixbuf)	373	delete img;
884	g_object_unref (pixbuf);	374	img = img2;
885	pixbuf = image;
886	have_image = true;
887	return true;
888	}
889	# endif
890
891	return false;
892	}	375	}
893		376
894	# endif /* BG_IMAGE_FROM_FILE */	377	# endif /* BG_IMAGE_FROM_FILE */
895		378
896	# ifdef ENABLE_TRANSPARENCY
897	bool	379	bool
898	rxvt_term::bg_set_transparent ()	380	image_effects::set_blur (const char *geom)
899	{
900	if (!(bg_flags & BG_IS_TRANSPARENT))
901	{
902	bg_flags |= BG_IS_TRANSPARENT;
903	return true;
904	}
905
906	return false;
907	}
908
909	bool
910	rxvt_term::bg_set_blur (const char *geom)
911	{	381	{
912	bool changed = false;	382	bool changed = false;
913	unsigned int hr, vr;	383	unsigned int hr, vr;
914	int junk;	384	int junk;
915	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	385	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
932	{	402	{
933	changed = true;	403	changed = true;
934	v_blurRadius = vr;	404	v_blurRadius = vr;
935	}	405	}
936		406
937	if (v_blurRadius == 0 && h_blurRadius == 0)
938	bg_flags &= ~BG_NEEDS_BLUR;
939	else
940	bg_flags |= BG_NEEDS_BLUR;
941
942	return changed;	407	return changed;
943	}	408	}
944		409
945	static inline unsigned long	410	bool
946	compute_tint_shade_flags (rxvt_color *tint, int shade)	411	image_effects::set_tint (const rxvt_color &new_tint)
947	{	412	{
948	unsigned long flags = 0;	413	if (!tint_set || tint != new_tint)
949	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
950	bool has_shade = shade != 100;
951
952	if (tint)
953	{
954	tint->get (c);
955	if (!has_shade
956	&& (c.r <= 0x00ff || c.r >= 0xff00)
957	&& (c.g <= 0x00ff || c.g >= 0xff00)
958	&& (c.b <= 0x00ff || c.b >= 0xff00))
959	flags |= rxvt_term::BG_TINT_BITAND;
960	}	414	{
961
962	if (has_shade || tint)
963	flags |= rxvt_term::BG_NEEDS_TINT;
964
965	return flags;
966	}
967
968	bool
969	rxvt_term::bg_set_tint (rxvt_color &new_tint)
970	{
971	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
972	{
973	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
974	tint = new_tint;	415	tint = new_tint;
975	bg_flags = (bg_flags & ~BG_TINT_FLAGS) | new_flags | BG_TINT_SET;	416	tint_set = true;
		417
976	return true;	418	return true;
977	}	419	}
978		420
979	return false;	421	return false;
980	}	422	}
981		423
982	bool	424	bool
983	rxvt_term::bg_set_shade (const char *shade_str)	425	image_effects::set_shade (const char *shade_str)
984	{	426	{
985	int new_shade = (shade_str) ? atoi (shade_str) : 100;	427	int new_shade = atoi (shade_str);
986		428
987	clamp_it (new_shade, -100, 200);	429	clamp_it (new_shade, -100, 200);
988	if (new_shade < 0)	430	if (new_shade < 0)
989	new_shade = 200 - (100 + new_shade);	431	new_shade = 200 - (100 + new_shade);
990		432
991	if (new_shade != shade)	433	if (new_shade != shade)
992	{	434	{
993	unsigned long new_flags = compute_tint_shade_flags ((bg_flags & BG_TINT_SET) ? &tint : NULL, new_shade);
994	shade = new_shade;	435	shade = new_shade;
995	bg_flags = (bg_flags & ~BG_TINT_FLAGS) | new_flags;
996	return true;	436	return true;
997	}	437	}
998		438
999	return false;	439	return false;
1000	}	440	}
1001		441
1002	#if XRENDER	442	# if ENABLE_TRANSPARENCY
1003	static void	443	/*
1004	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1005	{
1006	double sigma = radius / 2.0;
1007	double scale = sqrt (2.0 * M_PI) * sigma;
1008	double sum = 0.0;
1009
1010	for (int i = 0; i < width; i++)
1011	{
1012	double x = i - width / 2;
1013	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1014	sum += kernel[i];
1015	}
1016
1017	params[0] = XDoubleToFixed (width);
1018	params[1] = XDoubleToFixed (1);
1019
1020	for (int i = 0; i < width; i++)
1021	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1022	}
1023	#endif
1024
1025	bool
1026	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1027	{
1028	bool ret = false;
1029	#if XRENDER
1030	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1031	double *kernel = (double *)malloc (size * sizeof (double));
1032	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1033
1034	XRenderPictureAttributes pa;
1035	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1036
1037	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1038	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1039
1040	if (kernel && params && src && dst)
1041	{
1042	if (h_blurRadius)
1043	{
1044	size = h_blurRadius * 2 + 1;
1045	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1046
1047	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1048	XRenderComposite (dpy,
1049	PictOpSrc,
1050	src,
1051	None,
1052	dst,
1053	0, 0,
1054	0, 0,
1055	0, 0,
1056	width, height);
1057	}
1058
1059	if (v_blurRadius)
1060	{
1061	size = v_blurRadius * 2 + 1;
1062	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1063	::swap (params[0], params[1]);
1064
1065	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1066	XRenderComposite (dpy,
1067	PictOpSrc,
1068	src,
1069	None,
1070	dst,
1071	0, 0,
1072	0, 0,
1073	0, 0,
1074	width, height);
1075	}
1076
1077	ret = true;
1078	}
1079
1080	free (kernel);
1081	free (params);
1082	XRenderFreePicture (dpy, src);
1083	XRenderFreePicture (dpy, dst);
1084	#endif
1085	return ret;
1086	}
1087
1088	bool
1089	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1090	{
1091	bool ret = false;
1092
1093	if (bg_flags & BG_TINT_BITAND)
1094	{
1095	XGCValues gcv;
1096	GC gc;
1097
1098	/* In this case we can tint image server-side getting significant
1099	* performance improvements, as we eliminate XImage transfer
1100	*/
1101	gcv.foreground = Pixel (tint);
1102	gcv.function = GXand;
1103	gcv.fill_style = FillSolid;
1104	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1105	if (gc)
1106	{
1107	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1108	ret = true;
1109	XFreeGC (dpy, gc);
1110	}
1111	}
1112	else
1113	{
1114	# if XRENDER
1115	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1116
1117	if (bg_flags & BG_TINT_SET)
1118	tint.get (c);
1119
1120	if (shade <= 100)
1121	{
1122	c.r = (c.r * shade) / 100;
1123	c.g = (c.g * shade) / 100;
1124	c.b = (c.b * shade) / 100;
1125	}
1126	else
1127	{
1128	c.r = (c.r * (200 - shade)) / 100;
1129	c.g = (c.g * (200 - shade)) / 100;
1130	c.b = (c.b * (200 - shade)) / 100;
1131	}
1132
1133	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1134	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1135	XRenderPictureAttributes pa;
1136
1137	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1138
1139	pa.repeat = True;
1140
1141	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1142	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1143	XFreePixmap (dpy, overlay_pmap);
1144
1145	pa.component_alpha = True;
1146	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1147	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1148	XFreePixmap (dpy, mask_pmap);
1149
1150	if (mask_pic && overlay_pic && back_pic)
1151	{
1152	XRenderColor mask_c;
1153
1154	mask_c.red = mask_c.green = mask_c.blue = 0;
1155	mask_c.alpha = 0xffff;
1156	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1157
1158	mask_c.alpha = 0;
1159	mask_c.red = 0xffff - c.r;
1160	mask_c.green = 0xffff - c.g;
1161	mask_c.blue = 0xffff - c.b;
1162	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1163	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1164
1165	if (shade > 100)
1166	{
1167	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1168	mask_c.alpha = 0;
1169	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1170
1171	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1172	}
1173
1174	ret = true;
1175	}
1176
1177	XRenderFreePicture (dpy, mask_pic);
1178	XRenderFreePicture (dpy, overlay_pic);
1179	XRenderFreePicture (dpy, back_pic);
1180	# endif
1181	}
1182
1183	return ret;
1184	}
1185
1186	/* make_transparency_pixmap()
1187	* 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
1188	* 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
1189	* our window.	446	* our window.
1190	*/	447	*/
1191	unsigned long	448	bool
1192	rxvt_term::make_transparency_pixmap ()	449	rxvt_term::render_root_image ()
1193	{	450	{
1194	unsigned long result = 0;
1195
1196	/* 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
1197	* be always up-to-date, so let's use it :	452	* be always up-to-date, so let's use it :
1198	*/	453	*/
1199	int screen = display->screen;	454	int screen = display->screen;
1200	int root_depth = DefaultDepth (dpy, screen);
1201	int root_width = DisplayWidth (dpy, screen);	455	int root_width = DisplayWidth (dpy, screen);
1202	int root_height = DisplayHeight (dpy, screen);	456	int root_height = DisplayHeight (dpy, screen);
1203	unsigned int root_pmap_width, root_pmap_height;
1204	int window_width = szHint.width;	457	int parent_width = szHint.width;
1205	int window_height = szHint.height;	458	int parent_height = szHint.height;
1206	int sx, sy;	459	int sx, sy;
1207	XGCValues gcv;
1208	GC gc;
1209		460
1210	sx = target_x;	461	sx = parent_x;
1211	sy = target_y;	462	sy = parent_y;
		463
		464	if (!root_img)
		465	return false;
1212		466
1213	/* 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 : */
1214	if (sx + window_width <= 0 || sy + window_height <= 0	468	if (sx + parent_width <= 0 || sy + parent_height <= 0
1215	|| sx >= root_width || sy >= root_height)	469	|| sx >= root_width || sy >= root_height)
1216	return 0;	470	return 0;
1217		471
1218	// validate root pixmap and get its size	472	while (sx < 0) sx += root_img->w;
1219	if (root_pixmap != None)	473	while (sy < 0) sy += root_img->h;
1220	{
1221	Window wdummy;
1222	int idummy;
1223	unsigned int udummy;
1224		474
1225	allowedxerror = -1;	475	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1226		476
1227	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	477	if (root_effects.need_blur ())
1228	root_pixmap = None;	478	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1229		479
1230	allowedxerror = 0;	480	if (root_effects.need_tint ())
1231	}	481	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1232		482
1233	Pixmap recoded_root_pmap = root_pixmap;
1234
1235	if (root_pixmap != None && root_depth != depth)
1236	{
1237	#if XRENDER
1238	if (bg_flags & BG_HAS_RENDER)
1239	{
1240	XRenderPictureAttributes pa;
1241
1242	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1243	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1244
1245	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1246	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	483	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1247	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	484	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1248		485
1249	if (src && dst)	486	delete bg_img;
1250	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	487	bg_img = img;
1251	else
1252	{
1253	XFreePixmap (dpy, recoded_root_pmap);
1254	root_pixmap = None;
1255	}
1256		488
1257	XRenderFreePicture (dpy, src);
1258	XRenderFreePicture (dpy, dst);
1259	}
1260	else
1261	#endif
1262	root_pixmap = None;
1263	}
1264
1265	if (root_pixmap == None)
1266	return 0;
1267
1268	if (bg_pixmap == None
1269	|| bg_pmap_width != window_width
1270	|| bg_pmap_height != window_height)
1271	{
1272	if (bg_pixmap)
1273	XFreePixmap (dpy, bg_pixmap);
1274	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1275	bg_pmap_width = window_width;
1276	bg_pmap_height = window_height;
1277	}
1278
1279	if (bg_pixmap == None)
1280	return 0;
1281
1282	/* straightforward pixmap copy */
1283	while (sx < 0) sx += (int)root_width;
1284	while (sy < 0) sy += (int)root_height;
1285
1286	gcv.tile = recoded_root_pmap;
1287	gcv.fill_style = FillTiled;
1288	gcv.ts_x_origin = -sx;
1289	gcv.ts_y_origin = -sy;
1290	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1291
1292	if (gc)
1293	{
1294	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1295	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1296	XFreeGC (dpy, gc);
1297
1298	if (!(bg_flags & BG_CLIENT_RENDER))
1299	{
1300	if ((bg_flags & BG_NEEDS_BLUR)
1301	&& (bg_flags & BG_HAS_RENDER_CONV))
1302	{
1303	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1304	result &= ~BG_NEEDS_BLUR;
1305	}
1306	if ((bg_flags & BG_NEEDS_TINT)
1307	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1308	{
1309	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1310	result &= ~BG_NEEDS_TINT;
1311	}
1312	} /* server side rendering completed */
1313	}
1314
1315	if (recoded_root_pmap != root_pixmap)
1316	XFreePixmap (dpy, recoded_root_pmap);
1317
1318	return result;	489	return true;
1319	}	490	}
1320		491
1321	void	492	void
1322	rxvt_term::bg_set_root_pixmap ()	493	rxvt_term::bg_set_root_pixmap ()
1323	{	494	{
1324	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	495	delete root_img;
1325	if (new_root_pixmap == None)	496	root_img = rxvt_img::new_from_root (this);
1326	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1327
1328	root_pixmap = new_root_pixmap;
1329	}	497	}
1330	# endif /* ENABLE_TRANSPARENCY */	498	# endif /* ENABLE_TRANSPARENCY */
1331		499
1332	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	500	void
1333	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1334	# endif
1335
1336	bool
1337	rxvt_term::bg_render ()	501	rxvt_term::bg_render ()
1338	{	502	{
1339	unsigned long tr_flags = 0;	503	if (bg_flags & BG_INHIBIT_RENDER)
		504	return;
1340		505
1341	bg_invalidate ();	506	bg_invalidate ();
1342	# ifdef ENABLE_TRANSPARENCY	507	# if ENABLE_TRANSPARENCY
1343	if (bg_flags & BG_IS_TRANSPARENT)	508	if (bg_flags & BG_IS_TRANSPARENT)
1344	{	509	{
1345	/* we need to re-generate transparency pixmap in that case ! */	510	/* we need to re-generate transparency pixmap in that case ! */
1346	tr_flags = make_transparency_pixmap ();	511	if (render_root_image ())
1347	if (tr_flags == 0)
1348	return false;
1349	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1350	bg_flags |= BG_IS_VALID;	512	bg_flags |= BG_IS_VALID;
1351	}	513	}
1352	# endif	514	# endif
1353		515
1354	# ifdef BG_IMAGE_FROM_FILE	516	# if BG_IMAGE_FROM_FILE
1355	if (have_image	517	if (fimage.img)
1356	|| (tr_flags & BG_EFFECTS_FLAGS))
1357	{	518	{
1358	if (render_image (tr_flags))	519	if (render_image (fimage))
1359	bg_flags |= BG_IS_VALID;	520	bg_flags |= BG_IS_VALID;
1360	}	521	}
1361	# endif	522	# endif
1362		523
1363	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1364	XImage *result = NULL;
1365
1366	if (tr_flags && !(bg_flags & BG_IS_VALID))
1367	{
1368	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1369	}
1370
1371	if (result)
1372	{
1373	/* our own client-side tinting */
1374	if (tr_flags & BG_NEEDS_TINT)
1375	{
1376	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1377	if (bg_flags & BG_TINT_SET)
1378	tint.get (c);
1379	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1380	}
1381
1382	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1383
1384	if (gc)
1385	{
1386	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1387
1388	XFreeGC (dpy, gc);
1389	bg_flags |= BG_IS_VALID;
1390	}
1391
1392	XDestroyImage (result);
1393	}
1394	# endif
1395
1396	if (!(bg_flags & BG_IS_VALID))	524	if (!(bg_flags & BG_IS_VALID))
1397	{	525	{
1398	if (bg_pixmap != None)	526	delete bg_img;
1399	{	527	bg_img = 0;
1400	XFreePixmap (dpy, bg_pixmap);
1401	bg_pixmap = None;
1402	}
1403	}	528	}
1404		529
1405	scr_recolour (false);	530	scr_recolour (false);
1406	bg_flags |= BG_NEEDS_REFRESH;	531	bg_flags |= BG_NEEDS_REFRESH;
1407		532
1408	bg_valid_since = ev::now ();	533	bg_valid_since = ev::now ();
1409
1410	return true;
1411	}	534	}
1412		535
1413	void	536	void
1414	rxvt_term::bg_init ()	537	rxvt_term::bg_init ()
1415	{	538	{
1416	#ifdef ENABLE_TRANSPARENCY	539	#if ENABLE_TRANSPARENCY
1417	shade = 100;	540	if (option (Opt_transparent))
		541	{
		542	bg_set_transparent ();
		543
		544	if (rs [Rs_blurradius])
		545	root_effects.set_blur (rs [Rs_blurradius]);
		546
		547	if (ISSET_PIXCOLOR (Color_tint))
		548	root_effects.set_tint (pix_colors_focused [Color_tint]);
		549
		550	if (rs [Rs_shade])
		551	root_effects.set_shade (rs [Rs_shade]);
		552
		553	bg_set_root_pixmap ();
		554	XSelectInput (dpy, display->root, PropertyChangeMask);
		555	rootwin_ev.start (display, display->root);
		556	}
1418	#endif	557	#endif
1419		558
1420	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	559	#if BG_IMAGE_FROM_FILE
1421	#if XRENDER	560	if (rs[Rs_backgroundPixmap])
1422	int major, minor;
1423	if (XRenderQueryVersion (dpy, &major, &minor))
1424	bg_flags |= BG_HAS_RENDER;
1425	XFilters *filters = XRenderQueryFilters (dpy, vt);
1426	if (filters)
1427	{	561	{
1428	for (int i = 0; i < filters->nfilter; i++)	562	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1429	if (!strcmp (filters->filter[i], FilterConvolution))	563	if (!bg_window_position_sensitive ())
1430	bg_flags |= BG_HAS_RENDER_CONV;	564	update_background ();
1431
1432	XFree (filters);
1433	}	565	}
1434	#endif	566	#endif
1435	}	567	}
1436		568
		569	void
		570	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		571	{
		572	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		573
		574	if (tint_set)
		575	tint.get (c);
		576
		577	if (shade > 100)
		578	{
		579	c.r = c.r * (200 - shade) / 100;
		580	c.g = c.g * (200 - shade) / 100;
		581	c.b = c.b * (200 - shade) / 100;
		582	}
		583	else
		584	{
		585	c.r = c.r * shade / 100;
		586	c.g = c.g * shade / 100;
		587	c.b = c.b * shade / 100;
		588	}
		589
		590	img->contrast (c.r, c.g, c.b, c.a);
		591
		592	if (shade > 100)
		593	{
		594	c.a = 0xffff;
		595	c.r =
		596	c.g =
		597	c.b = 0xffff * (shade - 100) / 100;
		598	img->brightness (c.r, c.g, c.b, c.a);
		599	}
		600	}
		601
1437	#endif /* HAVE_BG_PIXMAP */	602	#endif /* HAVE_BG_PIXMAP */
1438
1439	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1440	/* taken from aterm-0.4.2 */
1441
1442	static void
1443	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1444	{
1445	int sh_r, sh_g, sh_b;
1446	uint32_t mask_r, mask_g, mask_b;
1447	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1448	rgba low;
1449	rgba high;
1450	int i;
1451	int host_byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
1452
1453	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1454
1455	/* for convenience */
1456	mask_r = visual->red_mask;
1457	mask_g = visual->green_mask;
1458	mask_b = visual->blue_mask;
1459
1460	/* boring lookup table pre-initialization */
1461	switch (ximage->depth)
1462	{
1463	case 15:
1464	if ((mask_r != 0x7c00) ||
1465	(mask_g != 0x03e0) ||
1466	(mask_b != 0x001f))
1467	return;
1468	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1469	lookup_r = lookup;
1470	lookup_g = lookup+32;
1471	lookup_b = lookup+32+32;
1472	sh_r = 10;
1473	sh_g = 5;
1474	sh_b = 0;
1475	break;
1476	case 16:
1477	if ((mask_r != 0xf800) ||
1478	(mask_g != 0x07e0) ||
1479	(mask_b != 0x001f))
1480	return;
1481	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1482	lookup_r = lookup;
1483	lookup_g = lookup+32;
1484	lookup_b = lookup+32+64;
1485	sh_r = 11;
1486	sh_g = 5;
1487	sh_b = 0;
1488	break;
1489	case 24:
1490	if ((mask_r != 0xff0000) ||
1491	(mask_g != 0x00ff00) ||
1492	(mask_b != 0x0000ff))
1493	return;
1494	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1495	lookup_r = lookup;
1496	lookup_g = lookup+256;
1497	lookup_b = lookup+256+256;
1498	sh_r = 16;
1499	sh_g = 8;
1500	sh_b = 0;
1501	break;
1502	case 32:
1503	if ((mask_r != 0xff0000) ||
1504	(mask_g != 0x00ff00) ||
1505	(mask_b != 0x0000ff))
1506	return;
1507	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1508	lookup_r = lookup;
1509	lookup_g = lookup+256;
1510	lookup_b = lookup+256+256;
1511	sh_r = 16;
1512	sh_g = 8;
1513	sh_b = 0;
1514	break;
1515	default:
1516	return; /* we do not support this color depth */
1517	}
1518
1519	/* prepare limits for color transformation (each channel is handled separately) */
1520	if (shade > 100)
1521	{
1522	shade = 200 - shade;
1523
1524	high.r = c.r * shade / 100;
1525	high.g = c.g * shade / 100;
1526	high.b = c.b * shade / 100;
1527
1528	low.r = 65535 * (100 - shade) / 100;
1529	low.g = 65535 * (100 - shade) / 100;
1530	low.b = 65535 * (100 - shade) / 100;
1531	}
1532	else
1533	{
1534	high.r = c.r * shade / 100;
1535	high.g = c.g * shade / 100;
1536	high.b = c.b * shade / 100;
1537
1538	low.r = low.g = low.b = 0;
1539	}
1540
1541	/* fill our lookup tables */
1542	for (i = 0; i <= mask_r>>sh_r; i++)
1543	{
1544	uint32_t tmp;
1545	tmp = i * high.r;
1546	tmp += (mask_r>>sh_r) * low.r;
1547	lookup_r[i] = (tmp/65535)<<sh_r;
1548	}
1549	for (i = 0; i <= mask_g>>sh_g; i++)
1550	{
1551	uint32_t tmp;
1552	tmp = i * high.g;
1553	tmp += (mask_g>>sh_g) * low.g;
1554	lookup_g[i] = (tmp/65535)<<sh_g;
1555	}
1556	for (i = 0; i <= mask_b>>sh_b; i++)
1557	{
1558	uint32_t tmp;
1559	tmp = i * high.b;
1560	tmp += (mask_b>>sh_b) * low.b;
1561	lookup_b[i] = (tmp/65535)<<sh_b;
1562	}
1563
1564	/* apply table to input image (replacing colors by newly calculated ones) */
1565	if (ximage->bits_per_pixel == 32
1566	&& (ximage->depth == 24 || ximage->depth == 32)
1567	&& ximage->byte_order == host_byte_order)
1568	{
1569	uint32_t *p1, *pf, *p, *pl;
1570	p1 = (uint32_t *) ximage->data;
1571	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1572
1573	while (p1 < pf)
1574	{
1575	p = p1;
1576	pl = p1 + ximage->width;
1577	for (; p < pl; p++)
1578	{
1579	*p = lookup_r[(*p & 0xff0000) >> 16] |
1580	lookup_g[(*p & 0x00ff00) >> 8] |
1581	lookup_b[(*p & 0x0000ff)] |
1582	(*p & 0xff000000);
1583	}
1584	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1585	}
1586	}
1587	else
1588	{
1589	for (int y = 0; y < ximage->height; y++)
1590	for (int x = 0; x < ximage->width; x++)
1591	{
1592	unsigned long pixel = XGetPixel (ximage, x, y);
1593	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1594	lookup_g[(pixel & mask_g) >> sh_g] |
1595	lookup_b[(pixel & mask_b) >> sh_b];
1596	XPutPixel (ximage, x, y, pixel);
1597	}
1598	}
1599
1600	free (lookup);
1601	}
1602	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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