ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/rxvt-unicode/src/background.C

Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.47 by sf-exg, Mon Aug 30 23:42:37 2010 UTC vs.
Revision 1.205 by sf-exg, Wed Apr 11 10:06:45 2012 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C - former xpm.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	*	9	*
9	* 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
10	* 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
11	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
12	* (at your option) any later version.	13	* (at your option) any later version.
…		…
19	* 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
20	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
21	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
23		24
		25	#include <math.h>
24	#include "../config.h" /* NECESSARY */	26	#include "../config.h" /* NECESSARY */
25	#include "rxvt.h" /* NECESSARY */	27	#include "rxvt.h" /* NECESSARY */
26		28
27	#define DO_TIMING_TEST 0	29	#if XRENDER
28		30	# include <X11/extensions/Xrender.h>
29	#if DO_TIMING_TEST
30	# include <sys/time.h>
31	#define TIMING_TEST_START(id) \
32	struct timeval timing_test_##id##_stv; \
33	gettimeofday (&timing_test_##id##_stv, NULL);
34
35	#define TIMING_TEST_PRINT_RESULT(id) \
36	do { \
37	struct timeval tv; \
38	gettimeofday (&tv, NULL); \
39	tv.tv_sec -= (timing_test_##id##_stv).tv_sec; \
40	fprintf (stderr, "%s: %s: %d: elapsed %ld usec\n", #id, __FILE__, __LINE__, \
41	tv.tv_sec * 1000000 + tv.tv_usec - (timing_test_##id##_stv).tv_usec); \
42	} while (0)
43
44	#else
45	#define TIMING_TEST_START(id) do {} while (0)
46	#define TIMING_TEST_PRINT_RESULT(id) do {} while (0)
47	#endif	31	#endif
48		32
49	/*	33	#ifndef FilterConvolution
50	* Pixmap geometry string interpretation :	34	#define FilterConvolution "convolution"
51	* Each geometry string contains zero or one scale/position	35	#endif
52	* adjustment and may optionally be followed by a colon and one or more	36
53	* colon-delimited pixmap operations.	37	#ifndef RepeatPad
54	* The following table shows the valid geometry strings and their	38	#define RepeatPad True
55	* effects on the background image :	39	#endif
56	*
57	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
58	* W and H are percentages of the terminal window size.
59	* X and Y are also percentages; e.g., +50+50 centers
60	* the image in the window.
61	* WxH+X Assumes Y == X
62	* WxH Assumes Y == X == 50 (centers the image)
63	* W+X+Y Assumes H == W
64	* W+X Assumes H == W and Y == X
65	* W Assumes H == W and Y == X == 50
66	*
67	* Adjusting position only :
68	* =+X+Y Set position to X% by Y% (absolute).
69	* =+X Set position to X% by X%.
70	* +X+Y Adjust position horizontally X% and vertically Y%
71	* from current position (relative).
72	* +X Adjust position horizontally X% and vertically X%
73	* from current position.
74	*
75	* Adjusting scale only :
76	* Wx0 Multiply horizontal scaling factor by W%
77	* 0xH Multiply vertical scaling factor by H%
78	* 0x0 No scaling (show image at normal size).
79	*
80	* Pixmap Operations : (should be prepended by a colon)
81	* tile Tile image. Scaling/position modifiers above will affect
82	* the tile size and origin.
83	* propscale When scaling, scale proportionally. That is, maintain the
84	* proper aspect ratio for the image. Any portion of the
85	* background not covered by the image is filled with the
86	* current background color.
87	* hscale Scale horizontally, tile vertically ?
88	* vscale Tile horizontally, scale vertically ?
89	* scale Scale both up and down
90	* auto Same as 100x100+50+50
91	*/
92		40
93	#ifdef HAVE_BG_PIXMAP	41	#ifdef HAVE_BG_PIXMAP
94	bgPixmap_t::bgPixmap_t ()	42	# if XRENDER
		43	static Picture
		44	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
95	{	45	{
96	// this is basically redundant as bgPixmap_t is only used in	46	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
97	// zero_initialised-derived structs	47
98	#ifdef HAVE_AFTERIMAGE	48	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
99	original_asim = NULL;	49	XRenderPictureAttributes pa;
		50	pa.repeat = True;
		51	pa.component_alpha = component_alpha;
		52	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
		53
		54	XFreePixmap (dpy, pixmap);
		55
		56	return mask;
		57	}
		58	# endif
		59
		60	void
		61	rxvt_term::bg_destroy ()
		62	{
		63	#ifdef HAVE_PIXBUF
		64	if (pixbuf)
		65	g_object_unref (pixbuf);
100	#endif	66	#endif
101	#ifdef BG_IMAGE_FROM_FILE
102	h_scale = v_scale = 0;
103	h_align = v_align = 0;
104	#endif
105	flags = 0;
106	pixmap = None;
107	valid_since = invalid_since = 0;
108	target = 0;
109	}
110		67
111	void	68	if (bg_pixmap)
112	bgPixmap_t::destroy ()
113	{
114	#ifdef HAVE_AFTERIMAGE
115	if (original_asim)
116	safe_asimage_destroy (original_asim);
117	#endif
118
119	if (pixmap && target)
120	XFreePixmap (target->dpy, pixmap);	69	XFreePixmap (dpy, bg_pixmap);
121	}	70	}
122		71
123	bool	72	bool
124	bgPixmap_t::window_size_sensitive ()	73	rxvt_term::bg_set_position (int x, int y)
		74	{
		75
		76	if (target_x != x
		77	|| target_y != y)
		78	{
		79	target_x = x;
		80	target_y = y;
		81	return true;
		82	}
		83	return false;
		84	}
		85
		86	bool
		87	rxvt_term::bg_window_size_sensitive ()
125	{	88	{
126	# ifdef ENABLE_TRANSPARENCY	89	# ifdef ENABLE_TRANSPARENCY
127	if (flags & isTransparent)	90	if (bg_flags & BG_IS_TRANSPARENT)
128	return true;	91	return true;
129	# endif	92	# endif
130		93
131	# ifdef BG_IMAGE_FROM_FILE	94	# ifdef BG_IMAGE_FROM_FILE
132	# ifdef HAVE_AFTERIMAGE	95	if (bg_flags & BG_IS_FROM_FILE)
133	if (original_asim)
134	# endif
135	{	96	{
136	if (h_scale != 0 || v_scale != 0	97	if (bg_flags & BG_IS_SIZE_SENSITIVE)
137	|| h_align != 0 || v_align != 0)
138	return true;	98	return true;
139	}	99	}
140	# endif	100	# endif
141		101
142	return false;	102	return false;
143	}	103	}
144		104
145	bool	105	bool
146	bgPixmap_t::window_position_sensitive ()	106	rxvt_term::bg_window_position_sensitive ()
147	{	107	{
148	# ifdef ENABLE_TRANSPARENCY	108	# ifdef ENABLE_TRANSPARENCY
149	if (flags & isTransparent)	109	if (bg_flags & BG_IS_TRANSPARENT)
150	return true;	110	return true;
151	# endif	111	# endif
152		112
153	# ifdef BG_IMAGE_FROM_FILE	113	# ifdef BG_IMAGE_FROM_FILE
154	# ifdef HAVE_AFTERIMAGE	114	if (bg_flags & BG_IS_FROM_FILE)
155	if (original_asim)
156	# endif
157	{	115	{
158	if (h_align == rootAlign || v_align == rootAlign)	116	if (bg_flags & BG_ROOT_ALIGN)
159	return true;	117	return true;
160	}	118	}
161	# endif	119	# endif
162		120
163	return false;	121	return false;
164	};
165
166	bool bgPixmap_t::need_client_side_rendering ()
167	{
168	# ifdef HAVE_AFTERIMAGE
169	if (original_asim)
170	return true;
171	# endif
172	# ifdef ENABLE_TRANSPARENCY
173	if (flags & isTransparent)
174	{
175	# ifdef HAVE_AFTERIMAGE // can't blur without libAI anyways
176	if ((flags & blurNeeded) && !(flags & blurServerSide))
177	return true;
178	# endif
179	if ((flags & tintNeeded) && !(flags & tintServerSide))
180	return true;
181	}
182	# endif
183	return false;
184	}	122	}
185		123
186	# ifdef BG_IMAGE_FROM_FILE	124	# ifdef BG_IMAGE_FROM_FILE
187	static inline bool
188	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
189	{
190	if (geom_flags & flag)
191	{
192	if (new_value > 1000)
193	new_value = 1000;
194	if (new_value != scale)
195	{
196	scale = new_value;
197	return true;
198	}
199	}
200	return false;
201	}
202
203	static inline bool
204	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
205	{
206	if (geom_flags & flag)
207	{
208	if (new_value != bgPixmap_t::rootAlign)
209	{
210	if (new_value < -100)
211	new_value = -100;
212	else if (new_value > 200)
213	new_value = 200;
214	}
215	if (new_value != align)
216	{
217	align = new_value;
218	return true;
219	}
220	}
221	return false;
222	}
223
224	static inline int	125	static inline int
225	make_align_position (int align, int window_size, int image_size)	126	make_align_position (int align, int window_size, int image_size)
226	{	127	{
227	int diff = window_size - image_size;	128	int diff = window_size - image_size;
228	int smaller = MIN (image_size,window_size);	129	int smaller = min (image_size, window_size);
229		130
230	if (align >= 0 && align <= 50)	131	if (align >= 0 && align <= 100)
231	return diff * align / 100;	132	return diff * align / 100;
232	else if (align > 50 && align <= 100)	133	else if (align > 100)
233	return window_size - image_size - diff * (100 - align) / 100;
234	else if (align > 100 && align <= 200 )
235	return ((align - 100) * smaller / 100) + window_size - smaller;	134	return (align - 100) * smaller / 100 + window_size - smaller;
236	else if (align > -100 && align < 0)	135	else
237	return ((align + 100) * smaller / 100) - image_size;	136	return (align + 100) * smaller / 100 - image_size;
238	return 0;
239	}	137	}
240		138
241	static inline int	139	static inline int
242	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	140	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
243	{	141	{
244	int src_pos = 0;	142	int src_pos = 0;
245	dst_pos = 0;	143	dst_pos = pos;
246	dst_size = size;	144	dst_size = size;
247	if (pos < 0 && size > target_size)	145	if (pos < 0)
248	{	146	{
249	src_pos = -pos;	147	src_pos = -pos;
		148	dst_pos = 0;
250	dst_size += pos;	149	dst_size += pos;
251	}	150	}
252	else if (pos > 0)
253	dst_pos = pos;
254		151
255	if (dst_pos + dst_size > target_size)
256	dst_size = target_size - dst_pos;	152	min_it (dst_size, target_size - dst_pos);
257	return src_pos;	153	return src_pos;
258	}	154	}
259		155
260	bool	156	bool
261	bgPixmap_t::set_geometry (const char *geom)	157	rxvt_term::bg_set_geometry (const char *geom, bool update)
262	{	158	{
		159	bool changed = false;
263	int geom_flags = 0, changed = 0;	160	int geom_flags = 0;
264	int x = 0, y = 0;	161	int x = h_align;
		162	int y = v_align;
265	unsigned int w = 0, h = 0;	163	unsigned int w = h_scale;
266	unsigned int n;	164	unsigned int h = v_scale;
267	unsigned long new_flags = (flags & (~geometryFlags));	165	unsigned long new_flags = 0;
268	const char *p;
269	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
270		166
271	if (geom == NULL)	167	if (geom == NULL)
272	return false;	168	return false;
273		169
274	char str[MAXLEN_GEOM];	170	if (geom[0])
275
276	while (isspace(*geom)) ++geom;
277	if ((p = strchr (geom, ';')) == NULL)
278	p = strchr (geom, '\0');
279
280	n = (p - geom);
281	if (n < MAXLEN_GEOM)
282	{	171	{
283	char *ops;	172	char **arr = rxvt_strsplit (':', geom);
284	new_flags |= geometrySet;
285		173
286	memcpy (str, geom, n);	174	for (int i = 0; arr[i]; i++)
287	str[n] = '\0';
288	if (str[0] == ':')
289	ops = &str[0];
290	else if (str[0] != 'x' && str[0] != 'X' && isalpha(str[0]))
291	ops = &str[0];
292	else
293	{
294	char *tmp;
295	ops = strchr (str, ':');
296	if (ops != NULL)
297	{	175	{
298	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);	176	if (!strcasecmp (arr[i], "style=tiled"))
299	*(++tmp) = '\0';
300	if (ops == tmp) ++ops;
301	}	177	{
		178	new_flags = BG_TILE;
		179	w = h = noScale;
		180	x = y = 0;
		181	geom_flags = WidthValue|HeightValue|XValue|YValue;
		182	}
		183	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
		184	{
		185	new_flags = BG_KEEP_ASPECT;
		186	w = h = windowScale;
		187	x = y = centerAlign;
		188	geom_flags = WidthValue|HeightValue|XValue|YValue;
		189	}
		190	else if (!strcasecmp (arr[i], "style=stretched"))
		191	{
		192	new_flags = 0;
		193	w = h = windowScale;
		194	geom_flags = WidthValue|HeightValue;
		195	}
		196	else if (!strcasecmp (arr[i], "style=centered"))
		197	{
		198	new_flags = 0;
		199	w = h = noScale;
		200	x = y = centerAlign;
		201	geom_flags = WidthValue|HeightValue|XValue|YValue;
		202	}
		203	else if (!strcasecmp (arr[i], "style=root-tiled"))
		204	{
		205	new_flags = BG_TILE|BG_ROOT_ALIGN;
		206	w = h = noScale;
		207	geom_flags = WidthValue|HeightValue;
		208	}
		209	else if (!strcasecmp (arr[i], "op=tile"))
		210	new_flags |= BG_TILE;
		211	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		212	new_flags |= BG_KEEP_ASPECT;
		213	else if (!strcasecmp (arr[i], "op=root-align"))
		214	new_flags |= BG_ROOT_ALIGN;
		215
		216	// deprecated
		217	else if (!strcasecmp (arr[i], "tile"))
		218	{
		219	new_flags |= BG_TILE;
		220	w = h = noScale;
		221	geom_flags |= WidthValue|HeightValue;
		222	}
		223	else if (!strcasecmp (arr[i], "propscale"))
		224	{
		225	new_flags |= BG_KEEP_ASPECT;
		226	w = h = windowScale;
		227	geom_flags |= WidthValue|HeightValue;
		228	}
		229	else if (!strcasecmp (arr[i], "hscale"))
		230	{
		231	new_flags |= BG_TILE;
		232	w = windowScale;
		233	h = noScale;
		234	geom_flags |= WidthValue|HeightValue;
		235	}
		236	else if (!strcasecmp (arr[i], "vscale"))
		237	{
		238	new_flags |= BG_TILE;
		239	h = windowScale;
		240	w = noScale;
		241	geom_flags |= WidthValue|HeightValue;
		242	}
		243	else if (!strcasecmp (arr[i], "scale"))
		244	{
		245	w = h = windowScale;
		246	geom_flags |= WidthValue|HeightValue;
		247	}
		248	else if (!strcasecmp (arr[i], "auto"))
		249	{
		250	w = h = windowScale;
		251	x = y = centerAlign;
		252	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		253	}
		254	else if (!strcasecmp (arr[i], "root"))
		255	{
		256	new_flags |= BG_TILE|BG_ROOT_ALIGN;
		257	w = h = noScale;
		258	geom_flags |= WidthValue|HeightValue;
		259	}
		260
		261	else
		262	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
		263	} /* done parsing ops */
		264
		265	rxvt_free_strsplit (arr);
		266	}
		267
		268	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;
		269
		270	if (!update)
		271	{
		272	if (!(geom_flags & XValue))
		273	x = y = defaultAlign;
		274	else if (!(geom_flags & YValue))
		275	y = x;
		276
		277	if (!(geom_flags & (WidthValue|HeightValue)))
		278	w = h = defaultScale;
		279	else if (!(geom_flags & HeightValue))
		280	h = w;
		281	else if (!(geom_flags & WidthValue))
		282	w = h;
		283	}
		284
		285	min_it (w, 1000);
		286	min_it (h, 1000);
		287	clamp_it (x, -100, 200);
		288	clamp_it (y, -100, 200);
		289
		290	if (bg_flags != new_flags
		291	|| h_scale != w
		292	|| v_scale != h
		293	|| h_align != x
		294	|| v_align != y)
		295	{
		296	bg_flags = new_flags;
		297	h_scale = w;
		298	v_scale = h;
		299	h_align = x;
		300	v_align = y;
		301	changed = true;
		302	}
		303
		304	return changed;
		305	}
		306
		307	void
		308	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)
		309	{
		310	int target_width = szHint.width;
		311	int target_height = szHint.height;
		312
		313	w = h_scale * target_width / 100;
		314	h = v_scale * target_height / 100;
		315
		316	if (bg_flags & BG_KEEP_ASPECT)
		317	{
		318	float scale = (float)w / image_width;
		319	min_it (scale, (float)h / image_height);
		320	w = image_width * scale + 0.5;
		321	h = image_height * scale + 0.5;
		322	}
		323
		324	if (!w) w = image_width;
		325	if (!h) h = image_height;
		326
		327	if (bg_flags & BG_ROOT_ALIGN)
		328	{
		329	x = -target_x;
		330	y = -target_y;
		331	}
		332	else
		333	{
		334	x = make_align_position (h_align, target_width, w);
		335	y = make_align_position (v_align, target_height, h);
		336	}
		337
		338	if (!(bg_flags & BG_TILE)
		339	|| h_scale || v_scale
		340	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
		341	|| image_width > target_width || image_height > target_height)
		342	bg_flags |= BG_IS_SIZE_SENSITIVE;
		343	else
		344	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
		345	}
		346
		347	# ifdef HAVE_PIXBUF
		348	bool
		349	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
		350	int src_x, int src_y, int dst_x, int dst_y,
		351	unsigned int width, unsigned int height)
		352	{
		353	XImage *ximage;
		354	char *data, *line;
		355	int bytes_per_pixel;
		356	int width_r, width_g, width_b;
		357	int sh_r, sh_g, sh_b;
		358	int rowstride;
		359	int channels;
		360	unsigned char *row;
		361
		362	if (visual->c_class != TrueColor)
		363	return false;
		364
		365	if (depth == 24 || depth == 32)
		366	bytes_per_pixel = 4;
		367	else if (depth == 15 || depth == 16)
		368	bytes_per_pixel = 2;
		369	else
		370	return false;
		371
		372	width_r = ecb_popcount32 (visual->red_mask);
		373	width_g = ecb_popcount32 (visual->green_mask);
		374	width_b = ecb_popcount32 (visual->blue_mask);
		375
		376	if (width_r > 8 || width_g > 8 || width_b > 8)
		377	return false;
		378
		379	sh_r = ecb_ctz32 (visual->red_mask);
		380	sh_g = ecb_ctz32 (visual->green_mask);
		381	sh_b = ecb_ctz32 (visual->blue_mask);
		382
		383	if (width > INT_MAX / height / bytes_per_pixel)
		384	return false;
		385
		386	data = (char *)malloc (width * height * bytes_per_pixel);
		387	if (!data)
		388	return false;
		389
		390	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
		391	width, height, bytes_per_pixel * 8, 0);
		392	if (!ximage)
		393	{
		394	free (data);
		395	return false;
		396	}
		397
		398	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		399
		400	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
		401	channels = gdk_pixbuf_get_n_channels (pixbuf);
		402	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
		403	line = data;
		404
		405	for (int y = 0; y < height; y++)
		406	{
		407	for (int x = 0; x < width; x++)
		408	{
		409	unsigned char *pixel = row + x * channels;
		410	uint32_t value;
		411
		412	value = ((pixel[0] >> (8 - width_r)) << sh_r)
		413	| ((pixel[1] >> (8 - width_g)) << sh_g)
		414	| ((pixel[2] >> (8 - width_b)) << sh_b);
		415
		416	if (bytes_per_pixel == 4)
		417	((uint32_t *)line)[x] = value;
		418	else
		419	((uint16_t *)line)[x] = value;
302	}	420	}
303		421
304	if (ops > str || ops == NULL)	422	row += rowstride;
305	{	423	line += ximage->bytes_per_line;
306	/* we have geometry string - let's handle it prior to applying ops */
307	geom_flags = XParseGeometry (str, &x, &y, &w, &h);
308
309	if ((geom_flags & XValue) && !(geom_flags & YValue))
310	{
311	y = x;
312	geom_flags |= YValue;
313	}
314
315	if (flags & geometrySet)
316	{
317	/* new geometry is an adjustment to the old one ! */
318	if ((geom_flags & WidthValue) && (geom_flags & HeightValue))
319	{
320	if (w == 0 && h != 0)
321	{
322	w = h_scale;
323	h = (v_scale * h) / 100;
324	}
325	else if (h == 0 && w != 0)
326	{
327	w = (h_scale * w) / 100;
328	h = v_scale;
329	}
330	}
331	if (geom_flags & XValue)
332	{
333	if (str[0] != '=')
334	{
335	y += v_align;
336	x += h_align;
337	}
338	}
339	}
340	else /* setting up geometry from scratch */
341	{
342	if (!(geom_flags & XValue))
343	{
344	/* use default geometry - centered */
345	x = y = defaultAlign;
346	}
347	else if (!(geom_flags & YValue))
348	y = x;
349
350	if ((geom_flags & (WidthValue|HeightValue)) == 0)
351	{
352	/* use default geometry - scaled */
353	w = h = defaultScale;
354	}
355	else if (geom_flags & WidthValue)
356	{
357	if (!(geom_flags & HeightValue))
358	h = w;
359	}
360	else
361	w = h;
362	}
363	} /* done parsing geometry string */
364	else if (!(flags & geometrySet))
365	{
366	/* default geometry - scaled and centered */
367	x = y = defaultAlign;
368	w = h = defaultScale;
369	}
370
371	if (!(flags & geometrySet))
372	geom_flags |= WidthValue|HeightValue|XValue|YValue;
373
374	if (ops)
375	{
376	while (*ops)
377	{
378	while (*ops == ':' || isspace(*ops)) ++ops;
379
380	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)
381	if (CHECK_GEOM_OPS ("tile"))
382	{
383	w = h = noScale;
384	geom_flags |= WidthValue|HeightValue;
385	}
386	else if (CHECK_GEOM_OPS ("propscale"))
387	{
388	if (w == 0 && h == 0)
389	{
390	w = windowScale;
391	geom_flags |= WidthValue;
392	}
393	new_flags |= propScale;
394	}
395	else if (CHECK_GEOM_OPS ("hscale"))
396	{
397	if (w == 0) w = windowScale;
398
399	h = noScale;
400	geom_flags |= WidthValue|HeightValue;
401	}
402	else if (CHECK_GEOM_OPS ("vscale"))
403	{
404	if (h == 0) h = windowScale;
405
406	w = noScale;
407	geom_flags |= WidthValue|HeightValue;
408	}
409	else if (CHECK_GEOM_OPS ("scale"))
410	{
411	if (h == 0) h = windowScale;
412	if (w == 0) w = windowScale;
413
414	geom_flags |= WidthValue|HeightValue;
415	}
416	else if (CHECK_GEOM_OPS ("auto"))
417	{
418	w = h = windowScale;
419	x = y = centerAlign;
420	geom_flags |= WidthValue|HeightValue|XValue|YValue;
421	}
422	else if (CHECK_GEOM_OPS ("root"))
423	{
424	w = h = noScale;
425	x = y = rootAlign;
426	geom_flags |= WidthValue|HeightValue|XValue|YValue;
427	}
428	# undef CHECK_GEOM_OPS
429
430	while (*ops != ':' && *ops != '\0') ++ops;
431	} /* done parsing ops */
432	}
433
434	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) ++changed;
435	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) ++changed;
436	if (check_set_align_value (geom_flags, XValue, h_align, x)) ++changed;
437	if (check_set_align_value (geom_flags, YValue, v_align, y)) ++changed;
438	}
439
440	if (new_flags != flags)
441	{	424	}
442	flags = new_flags;
443	changed++;
444	}
445		425
446	//fprintf (stderr, "flags = %lX, scale = %ux%u, align=%+d%+d\n",	426	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
447	// flags, h_scale, v_scale, h_align, v_align);	427	XDestroyImage (ximage);
448	return (changed > 0);	428	return true;
449	}	429	}
450		430
451	# ifdef HAVE_AFTERIMAGE
452	bool	431	bool
453	bgPixmap_t::render_asim (unsigned long background_flags)	432	rxvt_term::render_image (bool transparent)
454	{	433	{
455	if (target == NULL)	434	if (!pixbuf)
456	return false;	435	return false;
457		436
458	target->init_asv ();	437	if (transparent
		438	&& !(bg_flags & BG_HAS_RENDER))
		439	return false;
459		440
460	ASImage *background = NULL;	441	GdkPixbuf *result;
461	ARGB32 background_tint = TINT_LEAVE_SAME;
462		442
463	# ifdef ENABLE_TRANSPARENCY	443	int image_width = gdk_pixbuf_get_width (pixbuf);
464	if (background_flags)	444	int image_height = gdk_pixbuf_get_height (pixbuf);
465	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
466		445
467	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
468	{
469	ShadingInfo as_shade;
470	as_shade.shading = (shade == 0) ? 100 : shade;
471
472	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
473	if (flags & tintSet)
474	tint.get (c);
475	as_shade.tintColor.red = c.r;
476	as_shade.tintColor.green = c.g;
477	as_shade.tintColor.blue = c.b;
478
479	background_tint = shading2tint32 (&as_shade);
480	}
481
482	if (!(background_flags & transpPmapBlured) && (flags & blurNeeded) && background != NULL)
483	{
484	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
485	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
486	100, ASIMAGE_QUALITY_DEFAULT);
487	if (tmp)
488	{
489	destroy_asimage (&background);
490	background = tmp;
491	}
492	}
493	# endif
494
495	ASImage *result = 0;
496
497	int target_width = target->szHint.width;	446	int target_width = szHint.width;
498	int target_height = target->szHint.height;	447	int target_height = szHint.height;
499	int new_pmap_width = target_width;	448	int new_pmap_width = target_width;
500	int new_pmap_height = target_height;	449	int new_pmap_height = target_height;
501		450
502	int x = 0;	451	int x = 0;
503	int y = 0;	452	int y = 0;
504	int w = h_scale * target_width / 100;	453	int w = 0;
505	int h = v_scale * target_height / 100;	454	int h = 0;
506		455
507	TIMING_TEST_START (asim);	456	get_image_geometry (image_width, image_height, w, h, x, y);
508		457
509	if (original_asim)	458	if (!(bg_flags & BG_ROOT_ALIGN)
		459	&& (x >= target_width
		460	|| y >= target_height
		461	|| x + w <= 0
		462	|| y + h <= 0))
		463	return false;
		464
		465	result = pixbuf;
		466
		467	if (w != image_width
		468	|| h != image_height)
		469	{
		470	result = gdk_pixbuf_scale_simple (pixbuf,
		471	w, h,
		472	GDK_INTERP_BILINEAR);
510	{	473	}
511	if (h_align == rootAlign || v_align == rootAlign)	474
		475	if (!result)
		476	return false;
		477
		478	bool ret = false;
		479
		480	XGCValues gcv;
		481	GC gc;
		482	Pixmap root_pmap;
		483
		484	image_width = gdk_pixbuf_get_width (result);
		485	image_height = gdk_pixbuf_get_height (result);
		486
		487	if (transparent)
		488	{
		489	root_pmap = bg_pixmap;
		490	bg_pixmap = None;
		491	}
		492	else
		493	{
		494	if (bg_flags & BG_TILE)
512	{	495	{
513	target->get_window_origin (x, y);	496	new_pmap_width = min (image_width, target_width);
514	x = -x;	497	new_pmap_height = min (image_height, target_height);
515	y = -y;
516	}	498	}
517
518	if (h_align != rootAlign)
519	x = make_align_position (h_align, target_width, w > 0 ? w : (int)original_asim->width);
520
521	if (v_align != rootAlign)
522	y = make_align_position (v_align, target_height, h > 0 ? h : (int)original_asim->height);
523	}
524
525	if (!original_asim
526	|| x >= target_width
527	|| y >= target_height
528	|| (w > 0 && x + w <= 0)
529	|| (h > 0 && y + h <= 0))
530	{	499	}
531	if (background)
532	{
533	new_pmap_width = background->width;
534	new_pmap_height = background->height;
535	result = background;
536		500
537	if (background_tint != TINT_LEAVE_SAME)	501	if (bg_pixmap == None
		502	|| bg_pmap_width != new_pmap_width
		503	|| bg_pmap_height != new_pmap_height)
		504	{
		505	if (bg_pixmap)
		506	XFreePixmap (dpy, bg_pixmap);
		507	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
		508	bg_pmap_width = new_pmap_width;
		509	bg_pmap_height = new_pmap_height;
		510	}
		511
		512	gcv.foreground = pix_colors[Color_bg];
		513	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
		514
		515	if (gc)
		516	{
		517	if (bg_flags & BG_TILE)
538	{	518	{
539	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	519	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
540	target_width, target_height, background_tint,	520	pixbuf_to_pixmap (result, tile, gc,
541	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);	521	0, 0,
542	if (tmp)	522	0, 0,
543	result = tmp;	523	image_width, image_height);
544	}	524
		525	gcv.tile = tile;
		526	gcv.fill_style = FillTiled;
		527	gcv.ts_x_origin = x;
		528	gcv.ts_y_origin = y;
		529	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		530
		531	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		532	XFreePixmap (dpy, tile);
545	}	533	}
546	else	534	else
547	new_pmap_width = new_pmap_height = 0;
548	}
549	else
550	{
551	result = original_asim;
552
553	if ((w > 0 && w != original_asim->width)
554	|| (h > 0 && h != original_asim->height))
555	{
556	result = scale_asimage (target->asv, original_asim,
557	w > 0 ? w : original_asim->width,
558	h > 0 ? h : original_asim->height,
559	background ? ASA_ASImage : ASA_XImage,
560	100, ASIMAGE_QUALITY_DEFAULT);
561	}	535	{
562
563	if (background == NULL)
564	{
565	/* if tiling - pixmap has to be sized exactly as the image,
566	but there is no need to make it bigger than the window! */
567	if (h_scale == 0)
568	new_pmap_width = min (result->width, target_width);
569	if (v_scale == 0)
570	new_pmap_height = min (result->height, target_height);
571	/* we also need to tile our image in one or both directions */
572	if (h_scale == 0 || v_scale == 0)
573	{
574	ASImage *tmp = tile_asimage (target->asv, result,
575	(h_scale > 0) ? 0 : (int)result->width - x,
576	(v_scale > 0) ? 0 : (int)result->height - y,
577	new_pmap_width,
578	new_pmap_height,
579	TINT_LEAVE_SAME, ASA_XImage,
580	100, ASIMAGE_QUALITY_DEFAULT);
581	if (tmp)
582	{
583	if (result != original_asim)
584	destroy_asimage (&result);
585
586	result = tmp;
587	}
588	}
589	}
590	else
591	{
592	/* if blending background and image - pixmap has to be sized same as target window */
593	ASImageLayer *layers = create_image_layers (2);
594
595	layers[0].im = background;
596	layers[0].clip_width = target_width;
597	layers[0].clip_height = target_height;
598	layers[0].tint = background_tint;
599	layers[1].im = result;
600
601	if (w <= 0)
602	{
603	/* tile horizontally */
604	while (x > 0) x -= (int)result->width;
605	layers[1].dst_x = x;
606	layers[1].clip_width = result->width+target_width;
607	}
608	else
609	{
610	/* clip horizontally */
611	layers[1].dst_x = x;
612	layers[1].clip_width = result->width;
613	}
614
615	if (h <= 0)
616	{
617	while (y > 0) y -= (int)result->height;
618	layers[1].dst_y = y;
619	layers[1].clip_height = result->height + target_height;
620	}
621	else
622	{
623	layers[1].dst_y = y;
624	layers[1].clip_height = result->height;
625	}
626
627	if (target->rs[Rs_blendtype])
628	{
629	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
630	if (layers[1].merge_scanlines == NULL)
631	layers[1].merge_scanlines = alphablend_scanlines;
632	}
633
634	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
635	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
636
637	if (tmp)
638	{
639	if (result != original_asim)
640	destroy_asimage (&result);
641
642	result = tmp;
643	}
644
645	free (layers);
646	}
647	}
648	TIMING_TEST_PRINT_RESULT (asim);
649
650	if (pixmap)
651	{
652	if (result == NULL
653	|| pmap_width != new_pmap_width
654	|| pmap_height != new_pmap_height
655	|| pmap_depth != target->depth)
656	{
657	XFreePixmap (target->dpy, pixmap);
658	pixmap = None;
659	}
660	}
661
662	if (result)
663	{
664	XGCValues gcv;
665	GC gc;
666
667	/* create Pixmap */
668	if (pixmap == None)
669	{
670	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
671	pmap_width = new_pmap_width;
672	pmap_height = new_pmap_height;
673	pmap_depth = target->depth;
674	}
675	/* fill with background color (if result's not completely overlapping it) */
676	gcv.foreground = target->pix_colors[Color_bg];
677	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
678
679	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;	536	int src_x, src_y, dst_x, dst_y;
680	int dst_width = result->width, dst_height = result->height;	537	int dst_width, dst_height;
681	if (background == NULL)	538
682	{
683	if (h_scale > 0) src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );	539	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
684	if (v_scale > 0) src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);	540	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
685		541
686	if (dst_x > 0 || dst_y > 0	542	if (dst_x > 0 || dst_y > 0
687	|| dst_x + dst_width < new_pmap_width	543	|| dst_x + dst_width < new_pmap_width
688	|| dst_y + dst_height < new_pmap_height)	544	|| dst_y + dst_height < new_pmap_height)
689	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	545	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		546
		547	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
		548	pixbuf_to_pixmap (result, bg_pixmap, gc,
		549	src_x, src_y,
		550	dst_x, dst_y,
		551	dst_width, dst_height);
690	}	552	}
691		553
692	/* put result on pixmap */	554	#if XRENDER
693	if (dst_x < new_pmap_width && dst_y < new_pmap_height)	555	if (transparent)
694	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
695
696	if (result != background && result != original_asim)
697	destroy_asimage (&result);
698
699	XFreeGC (target->dpy, gc);
700	TIMING_TEST_PRINT_RESULT (asim);
701	}
702
703	if (background)
704	destroy_asimage (&background);
705
706	return true;
707	}
708	# endif /* HAVE_AFTERIMAGE */
709
710	bool
711	bgPixmap_t::set_file (const char *file)
712	{
713	assert (file);
714
715	if (*file)
716	{
717	if (const char *p = strchr (file, ';'))
718	{	556	{
719	size_t len = p - file;	557	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
720	char *f = rxvt_temp_buf<char> (len + 1);	558
721	memcpy (f, file, len);	559	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);
722	f[len] = '\0';	560
723	file = f;	561	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
		562
		563	Picture mask = create_xrender_mask (dpy, vt, False, False);
		564
		565	XRenderColor mask_c;
		566
		567	mask_c.alpha = 0x8000;
		568	mask_c.red =
		569	mask_c.green =
		570	mask_c.blue = 0;
		571	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		572
		573	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
		574
		575	XRenderFreePicture (dpy, src);
		576	XRenderFreePicture (dpy, dst);
		577	XRenderFreePicture (dpy, mask);
724	}	578	}
		579	#endif
725		580
726	# ifdef HAVE_AFTERIMAGE	581	XFreeGC (dpy, gc);
727	if (!target->asimman)	582
728	target->asimman = create_generic_imageman (target->rs[Rs_path]);	583	ret = true;
729	original_asim = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	584	}
730	return original_asim;	585
		586	if (result != pixbuf)
		587	g_object_unref (result);
		588
		589	if (transparent)
		590	XFreePixmap (dpy, root_pmap);
		591
		592	return ret;
		593	}
		594	# endif /* HAVE_PIXBUF */
		595
		596	bool
		597	rxvt_term::bg_set_file (const char *file)
		598	{
		599	if (!file || !*file)
		600	return false;
		601
		602	bool ret = false;
		603	const char *p = strchr (file, ';');
		604
		605	if (p)
		606	{
		607	size_t len = p - file;
		608	char *f = rxvt_temp_buf<char> (len + 1);
		609	memcpy (f, file, len);
		610	f[len] = '\0';
		611	file = f;
		612	}
		613
		614	# ifdef HAVE_PIXBUF
		615	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
		616	if (image)
		617	{
		618	if (pixbuf)
		619	g_object_unref (pixbuf);
		620	pixbuf = image;
		621	bg_flags |= BG_IS_FROM_FILE;
		622	ret = true;
		623	}
731	# endif	624	# endif
		625
		626	if (ret)
		627	{
		628	if (p)
		629	bg_set_geometry (p + 1);
		630	else
		631	bg_set_default_geometry ();
		632	}
		633
		634	return ret;
		635	}
		636
		637	# endif /* BG_IMAGE_FROM_FILE */
		638
		639	# ifdef ENABLE_TRANSPARENCY
		640	bool
		641	rxvt_term::bg_set_transparent ()
		642	{
		643	if (!(bg_flags & BG_IS_TRANSPARENT))
		644	{
		645	bg_flags |= BG_IS_TRANSPARENT;
		646	return true;
732	}	647	}
733		648
734	return false;	649	return false;
735	}	650	}
736		651
737	# endif /* BG_IMAGE_FROM_FILE */
738
739	# ifdef ENABLE_TRANSPARENCY
740	bool	652	bool
741	bgPixmap_t::set_transparent ()	653	rxvt_term::bg_set_blur (const char *geom)
742	{	654	{
743	if (!(flags & isTransparent))	655	bool changed = false;
744	{
745	flags |= isTransparent;
746	return true;
747	}
748
749	return false;
750	}
751
752	bool
753	bgPixmap_t::set_blur_radius (const char *geom)
754	{
755	int changed = 0;
756	unsigned int hr, vr;	656	unsigned int hr, vr;
757	int junk;	657	int junk;
758	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	658	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
759		659
760	if (!(geom_flags&WidthValue))	660	if (!(geom_flags & WidthValue))
761	hr = 1;	661	hr = 1;
762	if (!(geom_flags&HeightValue))	662	if (!(geom_flags & HeightValue))
763	vr = hr;	663	vr = hr;
764		664
		665	min_it (hr, 128);
		666	min_it (vr, 128);
		667
765	if (h_blurRadius != hr)	668	if (h_blurRadius != hr)
766	{	669	{
767	++changed;	670	changed = true;
768	h_blurRadius = hr;	671	h_blurRadius = hr;
769	}	672	}
770		673
771	if (v_blurRadius != vr)	674	if (v_blurRadius != vr)
772	{	675	{
773	++changed;	676	changed = true;
774	v_blurRadius = vr;	677	v_blurRadius = vr;
775	}	678	}
776		679
777	if (v_blurRadius == 0 && h_blurRadius == 0)	680	if (h_blurRadius && v_blurRadius)
778	flags &= ~blurNeeded;	681	bg_flags |= BG_NEEDS_BLUR;
779	else	682	else
780	flags |= blurNeeded;	683	bg_flags &= ~BG_NEEDS_BLUR;
781		684
782	return (changed>0);	685	return changed;
783	}	686	}
784		687
785	static inline unsigned long	688	void
786	compute_tint_shade_flags (rxvt_color *tint, int shade)	689	rxvt_term::set_tint_shade_flags ()
787	{	690	{
788	unsigned long flags = 0;	691	if (shade != 100 || (bg_flags & BG_TINT_SET))
789	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	692	bg_flags |= BG_NEEDS_TINT;
790	bool has_shade = (shade > 0 && shade < 100) || (shade > 100 && shade < 200);	693	else
		694	bg_flags &= ~BG_NEEDS_TINT;
		695	}
791		696
792	if (tint)	697	bool
		698	rxvt_term::bg_set_tint (rxvt_color &new_tint)
		699	{
		700	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
793	{	701	{
		702	tint = new_tint;
		703	bg_flags |= BG_TINT_SET;
		704
		705	rgba c;
794	tint->get (c);	706	tint.get (c);
795	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)	707	if ((c.r <= 0x00ff || c.r >= 0xff00)
796	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)	708	&& (c.g <= 0x00ff || c.g >= 0xff00)
797	&& IS_COMPONENT_WHOLESOME (c.g)	709	&& (c.b <= 0x00ff || c.b >= 0xff00))
798	&& IS_COMPONENT_WHOLESOME (c.b))	710	bg_flags |= BG_TINT_BITAND;
799	flags |= bgPixmap_t::tintWholesome;
800	# undef IS_COMPONENT_WHOLESOME
801	}
802
803	if (has_shade)
804	flags |= bgPixmap_t::tintNeeded;
805	else if (tint)
806	{
807	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)
808	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))
809	{
810	flags |= bgPixmap_t::tintNeeded;
811	}
812	}
813
814	if (flags & bgPixmap_t::tintNeeded)
815	{
816	if (flags & bgPixmap_t::tintWholesome)
817	flags |= bgPixmap_t::tintServerSide;
818	else	711	else
819	{	712	bg_flags &= ~BG_TINT_BITAND;
820	#if XFT	713
821	flags |= bgPixmap_t::tintServerSide;	714	set_tint_shade_flags ();
		715	return true;
		716	}
		717
		718	return false;
		719	}
		720
		721	bool
		722	rxvt_term::bg_set_shade (const char *shade_str)
		723	{
		724	int new_shade = atoi (shade_str);
		725
		726	clamp_it (new_shade, -100, 200);
		727	if (new_shade < 0)
		728	new_shade = 200 - (100 + new_shade);
		729
		730	if (new_shade != shade)
		731	{
		732	shade = new_shade;
		733	set_tint_shade_flags ();
		734	return true;
		735	}
		736
		737	return false;
		738	}
		739
		740	#if XRENDER
		741	static void
		742	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
		743	{
		744	double sigma = radius / 2.0;
		745	double scale = sqrt (2.0 * M_PI) * sigma;
		746	double sum = 0.0;
		747
		748	for (int i = 0; i < width; i++)
		749	{
		750	double x = i - width / 2;
		751	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
		752	sum += kernel[i];
		753	}
		754
		755	params[0] = XDoubleToFixed (width);
		756	params[1] = XDoubleToFixed (1);
		757
		758	for (int i = 0; i < width; i++)
		759	params[i+2] = XDoubleToFixed (kernel[i] / sum);
		760	}
822	#endif	761	#endif
		762
		763	bool
		764	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
		765	{
		766	bool ret = false;
		767	#if XRENDER
		768	if (!(bg_flags & BG_HAS_RENDER_CONV))
		769	return false;
		770
		771	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
		772	double *kernel = (double *)malloc (size * sizeof (double));
		773	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
		774
		775	XRenderPictureAttributes pa;
		776	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		777
		778	pa.repeat = RepeatPad;
		779	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		780	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
		781	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		782	XFreePixmap (dpy, tmp);
		783
		784	if (kernel && params)
		785	{
		786	size = h_blurRadius * 2 + 1;
		787	get_gaussian_kernel (h_blurRadius, size, kernel, params);
		788
		789	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		790	XRenderComposite (dpy,
		791	PictOpSrc,
		792	src,
		793	None,
		794	dst,
		795	0, 0,
		796	0, 0,
		797	0, 0,
		798	width, height);
		799
		800	::swap (src, dst);
		801
		802	size = v_blurRadius * 2 + 1;
		803	get_gaussian_kernel (v_blurRadius, size, kernel, params);
		804	::swap (params[0], params[1]);
		805
		806	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		807	XRenderComposite (dpy,
		808	PictOpSrc,
		809	src,
		810	None,
		811	dst,
		812	0, 0,
		813	0, 0,
		814	0, 0,
		815	width, height);
		816
		817	ret = true;
		818	}
		819
		820	free (kernel);
		821	free (params);
		822	XRenderFreePicture (dpy, src);
		823	XRenderFreePicture (dpy, dst);
		824	#endif
		825	return ret;
		826	}
		827
		828	bool
		829	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
		830	{
		831	bool ret = false;
		832
		833	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
		834	{
		835	XGCValues gcv;
		836	GC gc;
		837
		838	/* In this case we can tint image server-side getting significant
		839	* performance improvements, as we eliminate XImage transfer
		840	*/
		841	gcv.foreground = Pixel (tint);
		842	gcv.function = GXand;
		843	gcv.fill_style = FillSolid;
		844	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
		845	if (gc)
		846	{
		847	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
		848	ret = true;
		849	XFreeGC (dpy, gc);
823	}	850	}
824	}	851	}
825		852	# if XRENDER
826	return flags;	853	else if (bg_flags & BG_HAS_RENDER)
827	}
828
829	bool
830	bgPixmap_t::set_tint (rxvt_color &new_tint)
831	{
832	if (tint != new_tint)
833	{	854	{
834	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);	855	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
835	tint = new_tint;	856
836	flags = (flags & ~tintFlags) | new_flags | tintSet;	857	if (bg_flags & BG_TINT_SET)
		858	tint.get (c);
		859
		860	if (shade <= 100)
		861	{
		862	c.r = c.r * shade / 100;
		863	c.g = c.g * shade / 100;
		864	c.b = c.b * shade / 100;
		865	}
		866	else
		867	{
		868	c.r = c.r * (200 - shade) / 100;
		869	c.g = c.g * (200 - shade) / 100;
		870	c.b = c.b * (200 - shade) / 100;
		871	}
		872
		873	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		874
		875	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
		876
		877	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
		878
		879	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
		880
		881	XRenderColor mask_c;
		882
		883	mask_c.alpha = 0xffff;
		884	mask_c.red =
		885	mask_c.green =
		886	mask_c.blue = 0;
		887	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		888
		889	mask_c.alpha = 0;
		890	mask_c.red = 0xffff - c.r;
		891	mask_c.green = 0xffff - c.g;
		892	mask_c.blue = 0xffff - c.b;
		893	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		894
		895	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		896
		897	if (shade > 100)
		898	{
		899	mask_c.alpha = 0;
		900	mask_c.red =
		901	mask_c.green =
		902	mask_c.blue = 0xffff * (shade - 100) / 100;
		903	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		904
		905	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		906	}
		907
837	return true;	908	ret = true;
838	}
839		909
840	return false;	910	XRenderFreePicture (dpy, mask_pic);
841	}	911	XRenderFreePicture (dpy, overlay_pic);
842		912	XRenderFreePicture (dpy, back_pic);
843	bool
844	bgPixmap_t::unset_tint ()
845	{
846	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
847
848	if (new_flags != (flags & tintFlags))
849	{	913	}
850	flags = (flags&~tintFlags)|new_flags;	914	# endif
851	return true;
852	}
853		915
854	return false;	916	return ret;
855	}	917	}
856		918
857	bool	919	/*
858	bgPixmap_t::set_shade (const char *shade_str)	920	* Builds a pixmap of the same size as the terminal window that contains
859	{
860	int new_shade = (shade_str) ? atoi (shade_str) : 0;
861
862	if (new_shade < 0 && new_shade > -100)
863	new_shade = 200 - (100 + new_shade);
864	else if (new_shade == 100)
865	new_shade = 0;
866
867	if (new_shade != shade)
868	{
869	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
870	shade = new_shade;
871	flags = (flags & (~tintFlags | tintSet)) | new_flags;
872	return true;
873	}
874
875	return false;
876	}
877
878	/* make_transparency_pixmap()
879	* Builds a pixmap sized the same as terminal window, with depth same as the root window
880	* that pixmap contains tiled portion of the root pixmap that is supposed to be covered by	921	* the tiled portion of the root pixmap that is supposed to be covered by
881	* our window.	922	* our window.
882	*/	923	*/
883	unsigned long	924	bool
884	bgPixmap_t::make_transparency_pixmap ()	925	rxvt_term::make_transparency_pixmap ()
885	{	926	{
886	unsigned long result = 0;	927	bool ret = false;
887
888	if (target == NULL)
889	return 0;
890		928
891	/* root dimensions may change from call to call - but Display structure should	929	/* root dimensions may change from call to call - but Display structure should
892	* be always up-to-date, so let's use it :	930	* be always up-to-date, so let's use it :
893	*/	931	*/
894	Window root = target->display->root;
895	int screen = target->display->screen;	932	int screen = display->screen;
896	Display *dpy = target->dpy;	933	int root_depth = DefaultDepth (dpy, screen);
897	int root_width = DisplayWidth (dpy, screen);	934	int root_width = DisplayWidth (dpy, screen);
898	int root_height = DisplayHeight (dpy, screen);	935	int root_height = DisplayHeight (dpy, screen);
899	unsigned int root_pmap_width, root_pmap_height;	936	unsigned int root_pmap_width, root_pmap_height;
900	int window_width = target->szHint.width;	937	int window_width = szHint.width;
901	int window_height = target->szHint.height;	938	int window_height = szHint.height;
902	int sx, sy;	939	int sx, sy;
903	XGCValues gcv;	940	XGCValues gcv;
		941	GC gc;
904		942
905	TIMING_TEST_START (tp);	943	sx = target_x;
906	target->get_window_origin (sx, sy);	944	sy = target_y;
907		945
908	/* check if we are outside of the visible part of the virtual screen : */	946	/* check if we are outside of the visible part of the virtual screen : */
909	if (sx + window_width <= 0 || sy + window_height <= 0	947	if (sx + window_width <= 0 || sy + window_height <= 0
910	|| sx >= root_width || sy >= root_height)	948	|| sx >= root_width || sy >= root_height)
911	return 0;	949	return 0;
912		950
		951	// validate root pixmap and get its size
913	if (root_pixmap != None)	952	if (root_pixmap != None)
914	{	953	{
915	/* we want to validate the pixmap and get it's size at the same time : */	954	Window wdummy;
916	int junk;	955	int idummy;
917	unsigned int ujunk;	956	unsigned int udummy;
918	/* root pixmap may be bad - allow a error */	957
919	target->allowedxerror = -1;	958	allowedxerror = -1;
920		959
921	if (!XGetGeometry (dpy, root_pixmap, &root, &junk, &junk, &root_pmap_width, &root_pmap_height, &ujunk, &ujunk))	960	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))
922	root_pixmap = None;	961	root_pixmap = None;
923		962
924	target->allowedxerror = 0;	963	allowedxerror = 0;
925	}
926
927	Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth);
928	GC gc = NULL;
929
930	if (tiled_root_pmap == None) /* something really bad happened - abort */
931	return 0;
932
933	if (root_pixmap == None)
934	{	964	}
935	/* use tricks to obtain the root background image :*/
936	/* we want to create Overrideredirect window overlapping out window
937	with background type of Parent Relative and then grab it */
938	XSetWindowAttributes attr;
939	Window src;
940	bool success = false;
941		965
942	attr.background_pixmap = ParentRelative;	966	Pixmap recoded_root_pmap = root_pixmap;
943	attr.backing_store = Always;
944	attr.event_mask = ExposureMask;
945	attr.override_redirect = True;
946	src = XCreateWindow (dpy, root, sx, sy, window_width, window_height, 0,
947	CopyFromParent, CopyFromParent, CopyFromParent,
948	CWBackPixmap|CWBackingStore|CWOverrideRedirect|CWEventMask,
949	&attr);
950		967
951	if (src != None)	968	if (root_pixmap != None && root_depth != depth)
952	{	969	{
953	XEvent event;	970	#if XRENDER
954	int ev_count = 0;	971	if (bg_flags & BG_HAS_RENDER)
955	XGrabServer (dpy);
956	XMapRaised (dpy, src);
957	XSync (dpy, False);
958
959	/* XSync should get window where it's properly exposed,
960	* but to be on the safe side - let's check for the actual event to arrive : */
961	while (XCheckWindowEvent (dpy, src, ExposureMask, &event))
962	++ev_count;
963
964	if (ev_count > 0);
965	{
966	/* hooray! - we can grab the image! */
967	gc = XCreateGC (dpy, root, 0, NULL);
968	if (gc)
969	{
970	XCopyArea (dpy, src, tiled_root_pmap, gc, 0, 0, window_width, window_height, 0, 0);
971	success = true;
972	}
973	}
974
975	XDestroyWindow (dpy, src);
976	XUngrabServer (dpy);
977	//fprintf (stderr, "%s:%d: ev_count = %d\n", __FUNCTION__, __LINE__, ev_count);
978	}
979
980	if (!success)
981	{	972	{
982	XFreePixmap (dpy, tiled_root_pmap);	973	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
983	tiled_root_pmap = None;
984	}
985	else
986	result |= transpPmapTiled;
987	}
988	else
989	{
990	/* straightforward pixmap copy */
991	gcv.tile = root_pixmap;
992	gcv.fill_style = FillTiled;
993		974
994	while (sx < 0) sx += (int)root_width;	975	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
995	while (sy < 0) sy += (int)root_height;	976	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
996		977
997	gcv.ts_x_origin = -sx;
998	gcv.ts_y_origin = -sy;
999	gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1000
1001	if (gc)
1002	{
1003	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1004	result |= transpPmapTiled;
1005	}
1006	}
1007	TIMING_TEST_PRINT_RESULT (tp);
1008
1009	if (tiled_root_pmap != None)
1010	{
1011	if (!need_client_side_rendering ())
1012	{
1013	if ((flags & tintNeeded))
1014	{
1015	if (flags & tintWholesome)
1016	{
1017	/* In this case we can tint image server-side getting significant
1018	* performance improvements, as we eliminate XImage transfer
1019	*/
1020	gcv.foreground = Pixel (tint);
1021	gcv.function = GXand;
1022	gcv.fill_style = FillSolid;
1023	if (gc)
1024	XChangeGC (dpy, gc, GCFillStyle | GCForeground | GCFunction, &gcv);
1025	else
1026	gc = XCreateGC (dpy, root, GCFillStyle | GCForeground | GCFunction, &gcv);
1027	if (gc)
1028	{
1029	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1030	result |= transpPmapTinted;
1031	}
1032	}
1033	else
1034	{
1035	# if XFT
1036	Picture back_pic = 0;
1037	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1038
1039	if (flags & tintSet)
1040	tint.get (c);
1041
1042	if (shade > 0 && shade < 100)
1043	{
1044	c.r = (c.r * shade) / 100;
1045	c.g = (c.g * shade) / 100;
1046	c.b = (c.b * shade) / 100;
1047	}
1048	else if (shade > 100 && shade < 200)
1049	{
1050	c.r = (c.r * (200 - shade)) / 100;
1051	c.g = (c.g * (200 - shade)) / 100;
1052	c.b = (c.b * (200 - shade)) / 100;
1053	}
1054
1055	XRenderPictFormat pf;
1056	pf.type = PictTypeDirect;
1057	pf.depth = 32;
1058	pf.direct.redMask = 0xff;
1059	pf.direct.greenMask = 0xff;
1060	pf.direct.blueMask = 0xff;
1061	pf.direct.alphaMask = 0xff;
1062
1063	XRenderPictFormat *solid_format = XRenderFindFormat (dpy,	978	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1064	(PictFormatType|
1065	PictFormatDepth|
1066	PictFormatRedMask|
1067	PictFormatGreenMask|
1068	PictFormatBlueMask|
1069	PictFormatAlphaMask),
1070	&pf,
1071	0);
1072	XRenderPictFormat *root_format = XRenderFindVisualFormat (dpy, DefaultVisualOfScreen (ScreenOfDisplay (dpy, target->display->screen)));
1073	XRenderPictureAttributes pa ;
1074
1075	back_pic = XRenderCreatePicture (dpy, tiled_root_pmap, root_format, 0, &pa);	979	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1076		980
1077	pa.repeat = True;	981	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
1078		982
1079	Pixmap overlay_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1080	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1081	XFreePixmap (dpy, overlay_pmap);
1082
1083	pa.component_alpha = True;
1084	Pixmap mask_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1085	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1086	XFreePixmap (dpy, mask_pmap);
1087
1088	if (mask_pic && overlay_pic && back_pic)
1089	{
1090	XRenderColor mask_c;
1091
1092	memset (&mask_c, (shade > 100) ? 0xFF : 0x0, sizeof (mask_c));
1093	mask_c.alpha = 0xffff;
1094	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1095
1096	mask_c.alpha = 0;
1097	mask_c.red = 0xffff - c.r;
1098	mask_c.green = 0xffff - c.g;
1099	mask_c.blue = 0xffff - c.b;
1100	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1101	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, window_width, window_height);
1102	result |= transpPmapTinted;
1103	}
1104
1105	XRenderFreePicture (dpy, mask_pic);	983	XRenderFreePicture (dpy, src);
1106	XRenderFreePicture (dpy, overlay_pic);
1107	XRenderFreePicture (dpy, back_pic);	984	XRenderFreePicture (dpy, dst);
1108	# if DO_TIMING_TEST
1109	XSync (dpy, False);
1110	# endif
1111	# endif
1112	}
1113	}
1114	} /* server side rendering completed */
1115
1116	if (pixmap)
1117	XFreePixmap (dpy, pixmap);
1118
1119	pixmap = tiled_root_pmap;
1120	pmap_width = window_width;
1121	pmap_height = window_height;
1122	pmap_depth = root_depth;
1123	}
1124
1125	if (gc)
1126	XFreeGC (dpy, gc);
1127
1128	TIMING_TEST_PRINT_RESULT (tp);
1129
1130	return result;
1131	}
1132
1133	bool
1134	bgPixmap_t::set_root_pixmap ()
1135	{
1136	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1137	if (new_root_pixmap == None)
1138	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1139
1140	if (new_root_pixmap != root_pixmap)
1141	{
1142	root_pixmap = new_root_pixmap;
1143	return true;
1144	}
1145
1146	return false;
1147	}
1148	# endif /* ENABLE_TRANSPARENCY */
1149
1150	# ifndef HAVE_AFTERIMAGE
1151	static void ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm);
1152	# endif
1153
1154	bool
1155	bgPixmap_t::render ()
1156	{
1157	unsigned long background_flags = 0;
1158
1159	if (target == NULL)
1160	return false;
1161
1162	TIMING_TEST_START (tp);
1163
1164	invalidate ();
1165	# ifdef ENABLE_TRANSPARENCY
1166	if (flags & isTransparent)
1167	{
1168	/* we need to re-generate transparency pixmap in that case ! */
1169	background_flags = make_transparency_pixmap ();
1170	if (background_flags == 0)
1171	return false;
1172	else if ((background_flags & transpTransformations) == (flags & transpTransformations)
1173	&& pmap_depth == target->depth)
1174	flags = flags & ~isInvalid;
1175	}
1176	# endif
1177
1178	# ifdef HAVE_AFTERIMAGE
1179	if (original_asim
1180	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1181	{
1182	if (render_asim (background_flags))
1183	flags = flags & ~isInvalid;
1184	}
1185	# endif
1186
1187	XImage *result = NULL;
1188
1189	if (background_flags && (flags & isInvalid))
1190	{
1191	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1192
1193	# if !defined(HAVE_AFTERIMAGE) && !XFT
1194	/* our own client-side tinting */
1195	/* ATTENTION: We ASSUME that XFT will let us do all the tinting necessary server-side.
1196	This may need to be changed in need_client_side_rendering() logic is altered !!! */
1197	if (result != NULL && !(background_flags & transpPmapTinted) && (flags & tintNeeded))
1198	{
1199	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1200	if (flags & tintSet)
1201	tint.get (c);
1202	ShadeXImage (target, result, shade, c.r, c.g, c.b);
1203	}
1204	# endif
1205	}
1206
1207	if (result)
1208	{
1209	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1210
1211	if (gc)
1212	{
1213	if (/*pmap_depth != target->depth &&*/ pixmap != None)
1214	{
1215	XFreePixmap (target->dpy, pixmap);
1216	pixmap = None;
1217	}
1218
1219	if (pixmap == None)
1220	{
1221	pixmap = XCreatePixmap (target->dpy, target->vt, result->width, result->height, target->depth);
1222	pmap_width = result->width;
1223	pmap_height = result->height;
1224	pmap_depth = target->depth;
1225	}
1226
1227	if (pmap_depth != result->depth)
1228	{
1229	/* Bad Match error will ensue ! stupid X !!!! */
1230	if (result->depth == 24 && pmap_depth == 32)
1231	result->depth = 32;
1232	else if (result->depth == 32 && pmap_depth == 24)
1233	result->depth = 24;
1234	else
1235	{
1236	/* TODO: implement image recoding */
1237	}
1238	}
1239
1240	if (pmap_depth == result->depth)
1241	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1242
1243	XFreeGC (target->dpy, gc);
1244	flags = flags & ~isInvalid;
1245	}
1246
1247	XDestroyImage (result);
1248	}
1249
1250	if (flags & isInvalid)
1251	{
1252	if (pixmap != None)
1253	{
1254	XFreePixmap (target->dpy, pixmap);
1255	pixmap = None;
1256	}
1257	}
1258
1259	apply ();
1260
1261	XSync (target->dpy, False);
1262	valid_since = ev::now ();
1263
1264	TIMING_TEST_PRINT_RESULT (tp);
1265
1266	return true;
1267	}
1268
1269	bool
1270	bgPixmap_t::set_target (rxvt_term *new_target)
1271	{
1272	if (new_target)
1273	if (target != new_target)
1274	{
1275	target = new_target;
1276	# ifdef ENABLE_TRANSPARENCY
1277	root_depth = DefaultDepthOfScreen (ScreenOfDisplay (target->dpy, target->display->screen));
1278	# endif
1279	return true;
1280	}
1281
1282	return false;
1283	}
1284
1285	void
1286	bgPixmap_t::apply ()
1287	{
1288	if (target)
1289	{
1290	flags &= ~isVtOrigin;
1291
1292	if (pixmap != None)
1293	{
1294	/* set target's background to pixmap */
1295	# ifdef ENABLE_TRANSPARENCY
1296	if (flags & isTransparent)
1297	{
1298	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1299	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1300
1301	if (target->scrollBar.win)
1302	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1303	}
1304	else
1305	# endif
1306	{
1307	flags |= isVtOrigin;
1308	/* force old pixmap dereference in case it was transparent before :*/
1309	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1310	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1311	/* do we also need to set scrollbar's background here ? */
1312
1313	if (target->scrollBar.win)
1314	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1315	}
1316	}	985	}
1317	else	986	else
		987	#endif
		988	recoded_root_pmap = None;
		989	}
		990
		991	if (recoded_root_pmap == None)
		992	return 0;
		993
		994	if (bg_pixmap == None
		995	|| bg_pmap_width != window_width
		996	|| bg_pmap_height != window_height)
		997	{
		998	if (bg_pixmap)
		999	XFreePixmap (dpy, bg_pixmap);
		1000	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
		1001	bg_pmap_width = window_width;
		1002	bg_pmap_height = window_height;
		1003	}
		1004
		1005	/* straightforward pixmap copy */
		1006	while (sx < 0) sx += root_pmap_width;
		1007	while (sy < 0) sy += root_pmap_height;
		1008
		1009	gcv.tile = recoded_root_pmap;
		1010	gcv.fill_style = FillTiled;
		1011	gcv.ts_x_origin = -sx;
		1012	gcv.ts_y_origin = -sy;
		1013	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		1014
		1015	if (gc)
		1016	{
		1017	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
		1018	ret = true;
		1019	unsigned long tr_flags = bg_flags & BG_EFFECTS_FLAGS;
		1020
		1021	if (!(bg_flags & BG_CLIENT_RENDER))
		1022	{
		1023	if (bg_flags & BG_NEEDS_BLUR)
1318	{	1024	{
1319	/* set target background to a pixel */	1025	if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
1320	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);	1026	tr_flags &= ~BG_NEEDS_BLUR;
1321	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);	1027	}
1322	/* do we also need to set scrollbar's background here ? */	1028	if (bg_flags & BG_NEEDS_TINT)
1323	if (target->scrollBar.win)	1029	{
1324	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);	1030	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
		1031	tr_flags &= ~BG_NEEDS_TINT;
		1032	}
		1033	if (tr_flags & BG_NEEDS_TINT)
		1034	{
		1035	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1036	if (ximage)
		1037	{
		1038	/* our own client-side tinting */
		1039	tint_ximage (DefaultVisual (dpy, display->screen), ximage);
		1040
		1041	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1042	XDestroyImage (ximage);
		1043	}
		1044	}
		1045	} /* server side rendering completed */
		1046
		1047	XFreeGC (dpy, gc);
		1048	}
		1049
		1050	if (recoded_root_pmap != root_pixmap)
		1051	XFreePixmap (dpy, recoded_root_pmap);
		1052
		1053	return ret;
		1054	}
		1055
		1056	void
		1057	rxvt_term::bg_set_root_pixmap ()
		1058	{
		1059	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);
		1060	if (new_root_pixmap == None)
		1061	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
		1062
		1063	root_pixmap = new_root_pixmap;
		1064	}
		1065	# endif /* ENABLE_TRANSPARENCY */
		1066
		1067	bool
		1068	rxvt_term::bg_render ()
		1069	{
		1070	bool transparent = false;
		1071
		1072	bg_invalidate ();
		1073	# ifdef ENABLE_TRANSPARENCY
		1074	if (bg_flags & BG_IS_TRANSPARENT)
		1075	{
		1076	/* we need to re-generate transparency pixmap in that case ! */
		1077	transparent = make_transparency_pixmap ();
		1078	if (transparent)
		1079	bg_flags |= BG_IS_VALID;
		1080	}
		1081	# endif
		1082
		1083	# ifdef BG_IMAGE_FROM_FILE
		1084	if (bg_flags & BG_IS_FROM_FILE)
		1085	{
		1086	if (render_image (transparent))
		1087	bg_flags |= BG_IS_VALID;
		1088	}
		1089	# endif
		1090
		1091	if (!(bg_flags & BG_IS_VALID))
		1092	{
		1093	if (bg_pixmap != None)
		1094	{
		1095	XFreePixmap (dpy, bg_pixmap);
		1096	bg_pixmap = None;
1325	}	1097	}
		1098	}
1326		1099
1327	/* don't want Expose on the parent or vt. It is better to use	1100	scr_recolour (false);
1328	scr_touch or we get a great deal of flicker otherwise: */	1101	bg_flags |= BG_NEEDS_REFRESH;
1329	XClearWindow (target->dpy, target->parent[0]);
1330		1102
1331	if (target->scrollBar.state && target->scrollBar.win)	1103	bg_valid_since = ev::now ();
1332	{
1333	target->scrollBar.state = STATE_IDLE;
1334	target->scrollBar.show (0);
1335	}
1336		1104
1337	target->want_refresh = 1;	1105	return true;
1338	flags |= hasChanged;	1106	}
		1107
		1108	void
		1109	rxvt_term::bg_init ()
		1110	{
		1111	#ifdef ENABLE_TRANSPARENCY
		1112	shade = 100;
		1113	#endif
		1114
		1115	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
		1116	#if XRENDER
		1117	int major, minor;
		1118	if (XRenderQueryVersion (dpy, &major, &minor))
		1119	bg_flags |= BG_HAS_RENDER;
		1120	XFilters *filters = XRenderQueryFilters (dpy, vt);
		1121	if (filters)
1339	}	1122	{
		1123	for (int i = 0; i < filters->nfilter; i++)
		1124	if (!strcmp (filters->filter[i], FilterConvolution))
		1125	bg_flags |= BG_HAS_RENDER_CONV;
		1126
		1127	XFree (filters);
		1128	}
		1129	#endif
1340	}	1130	}
1341		1131
1342	#endif /* HAVE_BG_PIXMAP */	1132	#endif /* HAVE_BG_PIXMAP */
1343		1133
1344	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) && !XFT	1134	#ifdef ENABLE_TRANSPARENCY
1345	/* taken from aterm-0.4.2 */	1135	/* based on code from aterm-0.4.2 */
1346		1136
1347	typedef uint32_t RUINT32T;
1348
1349	static void	1137	static inline void
1350	ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm)	1138	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
		1139	{
		1140	for (int i = 0; i <= mask >> sh; i++)
		1141	{
		1142	uint32_t tmp;
		1143	tmp = i * high;
		1144	tmp += (mask >> sh) * low;
		1145	lookup[i] = (tmp / 0xffff) << sh;
		1146	}
		1147	}
		1148
		1149	void
		1150	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)
1351	{	1151	{
1352	int sh_r, sh_g, sh_b;	1152	int sh_r, sh_g, sh_b;
1353	RUINT32T mask_r, mask_g, mask_b;	1153	uint32_t mask_r, mask_g, mask_b;
1354	RUINT32T *lookup, *lookup_r, *lookup_g, *lookup_b;	1154	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1355	unsigned int lower_lim_r, lower_lim_g, lower_lim_b;	1155	unsigned short low;
1356	unsigned int upper_lim_r, upper_lim_g, upper_lim_b;	1156	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1357	int i;
1358		1157
1359	Visual *visual = term->visual;
1360
1361	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return ;	1158	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1362
1363	if (shade == 0)
1364	shade = 100;
1365		1159
1366	/* for convenience */	1160	/* for convenience */
1367	mask_r = visual->red_mask;	1161	mask_r = visual->red_mask;
1368	mask_g = visual->green_mask;	1162	mask_g = visual->green_mask;
1369	mask_b = visual->blue_mask;	1163	mask_b = visual->blue_mask;
1370		1164
1371	/* boring lookup table pre-initialization */	1165	/* boring lookup table pre-initialization */
1372	switch (srcImage->bits_per_pixel) {	1166	switch (ximage->depth)
		1167	{
1373	case 15:	1168	case 15:
1374	if ((mask_r != 0x7c00) ||	1169	if ((mask_r != 0x7c00) ||
1375	(mask_g != 0x03e0) ||	1170	(mask_g != 0x03e0) ||
1376	(mask_b != 0x001f))	1171	(mask_b != 0x001f))
1377	return;	1172	return;
1378	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32));	1173	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1379	lookup_r = lookup;	1174	lookup_r = lookup;
1380	lookup_g = lookup+32;	1175	lookup_g = lookup+32;
1381	lookup_b = lookup+32+32;	1176	lookup_b = lookup+32+32;
1382	sh_r = 10;	1177	sh_r = 10;
1383	sh_g = 5;	1178	sh_g = 5;
1384	sh_b = 0;	1179	sh_b = 0;
1385	break;	1180	break;
1386	case 16:	1181	case 16:
1387	if ((mask_r != 0xf800) ||	1182	if ((mask_r != 0xf800) ||
1388	(mask_g != 0x07e0) ||	1183	(mask_g != 0x07e0) ||
1389	(mask_b != 0x001f))	1184	(mask_b != 0x001f))
1390	return;	1185	return;
1391	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32));	1186	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1392	lookup_r = lookup;	1187	lookup_r = lookup;
1393	lookup_g = lookup+32;	1188	lookup_g = lookup+32;
1394	lookup_b = lookup+32+64;	1189	lookup_b = lookup+32+64;
1395	sh_r = 11;	1190	sh_r = 11;
1396	sh_g = 5;	1191	sh_g = 5;
1397	sh_b = 0;	1192	sh_b = 0;
1398	break;	1193	break;
1399	case 24:	1194	case 24:
1400	if ((mask_r != 0xff0000) ||	1195	if ((mask_r != 0xff0000) ||
1401	(mask_g != 0x00ff00) ||	1196	(mask_g != 0x00ff00) ||
1402	(mask_b != 0x0000ff))	1197	(mask_b != 0x0000ff))
1403	return;	1198	return;
1404	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));	1199	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1405	lookup_r = lookup;	1200	lookup_r = lookup;
1406	lookup_g = lookup+256;	1201	lookup_g = lookup+256;
1407	lookup_b = lookup+256+256;	1202	lookup_b = lookup+256+256;
1408	sh_r = 16;	1203	sh_r = 16;
1409	sh_g = 8;	1204	sh_g = 8;
1410	sh_b = 0;	1205	sh_b = 0;
1411	break;	1206	break;
1412	case 32:	1207	case 32:
1413	if ((mask_r != 0xff0000) ||	1208	if ((mask_r != 0xff0000) ||
1414	(mask_g != 0x00ff00) ||	1209	(mask_g != 0x00ff00) ||
1415	(mask_b != 0x0000ff))	1210	(mask_b != 0x0000ff))
1416	return;	1211	return;
1417	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));	1212	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1418	lookup_r = lookup;	1213	lookup_r = lookup;
1419	lookup_g = lookup+256;	1214	lookup_g = lookup+256;
1420	lookup_b = lookup+256+256;	1215	lookup_b = lookup+256+256;
1421	sh_r = 16;	1216	sh_r = 16;
1422	sh_g = 8;	1217	sh_g = 8;
1423	sh_b = 0;	1218	sh_b = 0;
1424	break;	1219	break;
1425	default:	1220	default:
1426	return; /* we do not support this color depth */	1221	return; /* we do not support this color depth */
1427	}	1222	}
		1223
		1224	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		1225
		1226	if (bg_flags & BG_TINT_SET)
		1227	tint.get (c);
1428		1228
1429	/* prepare limits for color transformation (each channel is handled separately) */	1229	/* prepare limits for color transformation (each channel is handled separately) */
1430	if (shade < 0) {	1230	if (shade > 100)
1431	shade = -shade;
1432	if (shade < 0) shade = 0;
1433	if (shade > 100) shade = 100;
1434
1435	lower_lim_r = 65535-rm;
1436	lower_lim_g = 65535-gm;
1437	lower_lim_b = 65535-bm;
1438
1439	lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100);
1440	lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100);
1441	lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100);
1442
1443	upper_lim_r = upper_lim_g = upper_lim_b = 65535;
1444	} else {
1445	if (shade < 0) shade = 0;
1446	if (shade > 100) shade = 100;
1447
1448	lower_lim_r = lower_lim_g = lower_lim_b = 0;
1449
1450	upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100);
1451	upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100);
1452	upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100);
1453	}
1454
1455	/* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */
1456	if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000 ))
1457	{	1231	{
1458	unsigned int tmp;	1232	c.r = c.r * (200 - shade) / 100;
		1233	c.g = c.g * (200 - shade) / 100;
		1234	c.b = c.b * (200 - shade) / 100;
1459		1235
1460	tmp = lower_lim_r;	1236	low = 0xffff * (shade - 100) / 100;
1461	lower_lim_r = lower_lim_b;
1462	lower_lim_b = tmp;
1463
1464	tmp = upper_lim_r;
1465	upper_lim_r = upper_lim_b;
1466	upper_lim_b = tmp;
1467	}	1237	}
		1238	else
		1239	{
		1240	c.r = c.r * shade / 100;
		1241	c.g = c.g * shade / 100;
		1242	c.b = c.b * shade / 100;
		1243
		1244	low = 0;
		1245	}
1468		1246
1469	/* fill our lookup tables */	1247	/* fill our lookup tables */
1470	for (i = 0; i <= mask_r>>sh_r; i++)	1248	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1471	{	1249	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1472	RUINT32T tmp;	1250	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1473	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r));
1474	tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r);
1475	lookup_r[i] = (tmp/65535)<<sh_r;
1476	}
1477	for (i = 0; i <= mask_g>>sh_g; i++)
1478	{
1479	RUINT32T tmp;
1480	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g));
1481	tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g);
1482	lookup_g[i] = (tmp/65535)<<sh_g;
1483	}
1484	for (i = 0; i <= mask_b>>sh_b; i++)
1485	{
1486	RUINT32T tmp;
1487	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b));
1488	tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b);
1489	lookup_b[i] = (tmp/65535)<<sh_b;
1490	}
1491		1251
1492	/* apply table to input image (replacing colors by newly calculated ones) */	1252	/* apply table to input image (replacing colors by newly calculated ones) */
1493	switch (srcImage->bits_per_pixel)	1253	if (ximage->bits_per_pixel == 32
		1254	&& (ximage->depth == 24 || ximage->depth == 32)
		1255	&& ximage->byte_order == host_byte_order)
1494	{	1256	{
1495	case 15:
1496	{
1497	unsigned short *p1, *pf, *p, *pl;	1257	uint32_t *p1, *pf, *p, *pl;
1498	p1 = (unsigned short *) srcImage->data;	1258	p1 = (uint32_t *) ximage->data;
1499	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);	1259	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
		1260
1500	while (p1 < pf)	1261	while (p1 < pf)
1501	{	1262	{
1502	p = p1;	1263	p = p1;
1503	pl = p1 + srcImage->width;	1264	pl = p1 + ximage->width;
1504	for (; p < pl; p++)	1265	for (; p < pl; p++)
1505	{	1266	{
1506	*p = lookup_r[(*p & 0x7c00)>>10] |	1267	*p = lookup_r[(*p & 0xff0000) >> 16] |
1507	lookup_g[(*p & 0x03e0)>> 5] |	1268	lookup_g[(*p & 0x00ff00) >> 8] |
1508	lookup_b[(*p & 0x001f)];	1269	lookup_b[(*p & 0x0000ff)] |
		1270	(*p & 0xff000000);
		1271	}
		1272	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1509	}	1273	}
1510	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1511	}	1274	}
1512	break;	1275	else
1513	}
1514	case 16:
1515	{
1516	unsigned short *p1, *pf, *p, *pl;
1517	p1 = (unsigned short *) srcImage->data;
1518	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1519	while (p1 < pf)
1520	{	1276	{
1521	p = p1;	1277	for (int y = 0; y < ximage->height; y++)
1522	pl = p1 + srcImage->width;	1278	for (int x = 0; x < ximage->width; x++)
1523	for (; p < pl; p++)
1524	{	1279	{
1525	*p = lookup_r[(*p & 0xf800)>>11] |	1280	unsigned long pixel = XGetPixel (ximage, x, y);
1526	lookup_g[(*p & 0x07e0)>> 5] |	1281	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1527	lookup_b[(*p & 0x001f)];	1282	lookup_g[(pixel & mask_g) >> sh_g] |
		1283	lookup_b[(pixel & mask_b) >> sh_b];
		1284	XPutPixel (ximage, x, y, pixel);
1528	}	1285	}
1529	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1530	}	1286	}
1531	break;
1532	}
1533	case 24:
1534	{
1535	unsigned char *p1, *pf, *p, *pl;
1536	p1 = (unsigned char *) srcImage->data;
1537	pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1538	while (p1 < pf)
1539	{
1540	p = p1;
1541	pl = p1 + srcImage->width * 3;
1542	for (; p < pl; p += 3)
1543	{
1544	p[0] = lookup_r[(p[0] & 0xff0000)>>16];
1545	p[1] = lookup_r[(p[1] & 0x00ff00)>> 8];
1546	p[2] = lookup_r[(p[2] & 0x0000ff)];
1547	}
1548	p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line);
1549	}
1550	break;
1551	}
1552	case 32:
1553	{
1554	RUINT32T *p1, *pf, *p, *pl;
1555	p1 = (RUINT32T *) srcImage->data;
1556	pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1557
1558	while (p1 < pf)
1559	{
1560	p = p1;
1561	pl = p1 + srcImage->width;
1562	for (; p < pl; p++)
1563	{
1564	*p = lookup_r[(*p & 0xff0000)>>16] |
1565	lookup_g[(*p & 0x00ff00)>> 8] |
1566	lookup_b[(*p & 0x0000ff)] |
1567	(*p & ~0xffffff);
1568	}
1569	p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line);
1570	}
1571	break;
1572	}
1573	}
1574		1287
1575	free (lookup);	1288	free (lookup);
1576	}	1289	}
1577	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1290	#endif /* ENABLE_TRANSPARENCY */

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines