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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.33 by root, Tue Nov 4 14:43:15 2008 UTC vs.
Revision 1.209 by sf-exg, Fri May 11 12:21:22 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) 2010-2012 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{ struct timeval tv;gettimeofday (&tv, NULL); tv.tv_sec -= (timing_test_##id##_stv).tv_sec;\
37	fprintf (stderr, "%s: %s: %d: elapsed %ld usec\n", #id, __FILE__, __LINE__,\
38	tv.tv_sec * 1000000 + tv.tv_usec - (timing_test_##id##_stv).tv_usec);}while (0)
39
40	#else
41	#define TIMING_TEST_START(id) do{}while (0)
42	#define TIMING_TEST_PRINT_RESULT(id) do{}while (0)
43	#endif	31	#endif
44		32
45	/*	33	#ifndef FilterConvolution
46	* Pixmap geometry string interpretation :	34	#define FilterConvolution "convolution"
47	* Each geometry string contains zero or one scale/position	35	#endif
48	* adjustment and may optionally be followed by a colon and one or more	36
49	* colon-delimited pixmap operations.	37	#ifndef RepeatPad
50	* The following table shows the valid geometry strings and their	38	#define RepeatPad True
51	* affects on the background image :	39	#endif
52	*
53	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
54	* W and H are percentages of the terminal window size.
55	* X and Y are also percentages; e.g., +50+50 centers
56	* the image in the window.
57	* WxH+X Assumes Y == X
58	* WxH Assumes Y == X == 50 (centers the image)
59	* W+X+Y Assumes H == W
60	* W+X Assumes H == W and Y == X
61	* W Assumes H == W and Y == X == 50
62	*
63	* Adjusting position only :
64	* =+X+Y Set position to X% by Y% (absolute).
65	* =+X Set position to X% by X%.
66	* +X+Y Adjust position horizontally X% and vertically Y%
67	* from current position (relative).
68	* +X Adjust position horizontally X% and vertically X%
69	* from current position.
70	*
71	* Adjusting scale only :
72	* Wx0 Multiply horizontal scaling factor by W%
73	* 0xH Multiply vertical scaling factor by H%
74	* 0x0 No scaling (show image at normal size).
75	*
76	* Pixmap Operations : (should be prepended by a colon)
77	* tile Tile image. Scaling/position modifiers above will affect
78	* the tile size and origin.
79	* propscale When scaling, scale proportionally. That is, maintain the
80	* proper aspect ratio for the image. Any portion of the
81	* background not covered by the image is filled with the
82	* current background color.
83	* hscale Scale horizontally, tile vertically ?
84	* vscale Tile horizontally, scale vertically ?
85	* scale Scale both up and down
86	* auto Same as 100x100+50+50
87	*/
88		40
89	#ifdef HAVE_BG_PIXMAP	41	#ifdef HAVE_BG_PIXMAP
90	bgPixmap_t::bgPixmap_t ()	42	# if XRENDER
		43	static Picture
		44	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
91	{	45	{
92	// this is basically redundant as bgPixmap_t is only used in	46	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
93	// zero_initialised-derived structs	47
94	#ifdef HAVE_AFTERIMAGE	48	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
95	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);
96	#endif	66	#endif
97	#ifdef BG_IMAGE_FROM_FILE
98	h_scale = v_scale = 0;
99	h_align = v_align = 0;
100	#endif
101	flags = 0;
102	pixmap = None;
103	valid_since = invalid_since = 0;
104	target = 0;
105	}
106		67
107	void	68	if (bg_pixmap)
108	bgPixmap_t::destroy ()
109	{
110	#ifdef HAVE_AFTERIMAGE
111	if (original_asim)
112	safe_asimage_destroy (original_asim);
113	#endif
114
115	if (pixmap && target)
116	XFreePixmap (target->dpy, pixmap);	69	XFreePixmap (dpy, bg_pixmap);
117	}	70	}
118		71
119	bool	72	bool
120	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 ()
121	{	88	{
122	# ifdef ENABLE_TRANSPARENCY	89	# ifdef ENABLE_TRANSPARENCY
123	if (flags & isTransparent)	90	if (bg_flags & BG_IS_TRANSPARENT)
124	return true;	91	return true;
125	# endif	92	# endif
126		93
127	# ifdef BG_IMAGE_FROM_FILE	94	# ifdef BG_IMAGE_FROM_FILE
128	# ifdef HAVE_AFTERIMAGE	95	if (bg_flags & BG_IS_FROM_FILE)
129	if (original_asim)
130	# endif
131	{	96	{
132	if (h_scale != 0 || v_scale != 0	97	if (bg_flags & BG_IS_SIZE_SENSITIVE)
133	|| h_align != 0 || v_align != 0)
134	return true;	98	return true;
135	}	99	}
136	# endif	100	# endif
137		101
138	return false;	102	return false;
139	}	103	}
140		104
141	bool	105	bool
142	bgPixmap_t::window_position_sensitive ()	106	rxvt_term::bg_window_position_sensitive ()
143	{	107	{
144	# ifdef ENABLE_TRANSPARENCY	108	# ifdef ENABLE_TRANSPARENCY
145	if (flags & isTransparent)	109	if (bg_flags & BG_IS_TRANSPARENT)
146	return true;	110	return true;
147	# endif	111	# endif
148		112
149	# ifdef BG_IMAGE_FROM_FILE	113	# ifdef BG_IMAGE_FROM_FILE
150	# ifdef HAVE_AFTERIMAGE	114	if (bg_flags & BG_IS_FROM_FILE)
151	if (original_asim)
152	# endif
153	{	115	{
154	if (h_align == rootAlign || v_align == rootAlign)	116	if (bg_flags & BG_ROOT_ALIGN)
155	return true;	117	return true;
156	}	118	}
157	# endif	119	# endif
158		120
159	return false;	121	return false;
160	};
161
162	bool bgPixmap_t::need_client_side_rendering ()
163	{
164	# ifdef HAVE_AFTERIMAGE
165	if (original_asim)
166	return true;
167	# endif
168	# ifdef ENABLE_TRANSPARENCY
169	if (flags & isTransparent)
170	{
171	# ifdef HAVE_AFTERIMAGE // can't blur without libAI anyways
172	if ((flags & blurNeeded) && !(flags & blurServerSide))
173	return true;
174	# endif
175	if ((flags & tintNeeded) && !(flags & tintServerSide))
176	return true;
177	}
178	# endif
179	return false;
180	}	122	}
181		123
182	# ifdef BG_IMAGE_FROM_FILE	124	# ifdef BG_IMAGE_FROM_FILE
183	static inline bool
184	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
185	{
186	if (geom_flags & flag)
187	{
188	if (new_value > 1000)
189	new_value = 1000;
190	if (new_value != scale)
191	{
192	scale = new_value;
193	return true;
194	}
195	}
196	return false;
197	}
198
199	static inline bool
200	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
201	{
202	if (geom_flags & flag)
203	{
204	if (new_value != bgPixmap_t::rootAlign)
205	{
206	if (new_value < -100)
207	new_value = -100;
208	else if (new_value > 200)
209	new_value = 200;
210	}
211	if (new_value != align)
212	{
213	align = new_value;
214	return true;
215	}
216	}
217	return false;
218	}
219
220	static inline int	125	static inline int
221	make_align_position (int align, int window_size, int image_size)	126	make_align_position (int align, int window_size, int image_size)
222	{	127	{
223	int diff = window_size - image_size;
224	int smaller = MIN (image_size,window_size);
225
226	if (align >= 0 && align <= 50)	128	if (align >= 0 && align <= 100)
227	return diff * align / 100;	129	return lerp (0, window_size - image_size, align);
228	else if (align > 50 && align <= 100)
229	return window_size - image_size - diff * (100 - align) / 100;
230	else if (align > 100 && align <= 200 )
231	return ((align - 100) * smaller / 100) + window_size - smaller;
232	else if (align > -100 && align < 0)	130	else if (align > 100)
233	return ((align + 100) * smaller / 100) - image_size;	131	return lerp (window_size - image_size, window_size, align - 100);
234	return 0;	132	else
		133	return lerp (-image_size, 0, align + 100);
235	}	134	}
236		135
237	static inline int	136	static inline int
238	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	137	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
239	{	138	{
240	int src_pos = 0;	139	int src_pos = 0;
241	dst_pos = 0;	140	dst_pos = pos;
242	dst_size = size;	141	dst_size = size;
243	if (pos < 0 && size > target_size)	142	if (pos < 0)
244	{	143	{
245	src_pos = -pos;	144	src_pos = -pos;
		145	dst_pos = 0;
246	dst_size += pos;	146	dst_size += pos;
247	}	147	}
248	else if (pos > 0)
249	dst_pos = pos;
250		148
251	if (dst_pos + dst_size > target_size)
252	dst_size = target_size - dst_pos;	149	min_it (dst_size, target_size - dst_pos);
253	return src_pos;	150	return src_pos;
254	}	151	}
255		152
256	bool	153	bool
257	bgPixmap_t::set_geometry (const char *geom)	154	rxvt_term::bg_set_geometry (const char *geom, bool update)
258	{	155	{
		156	bool changed = false;
259	int geom_flags = 0, changed = 0;	157	int geom_flags = 0;
260	int x = 0, y = 0;	158	int x = h_align;
		159	int y = v_align;
261	unsigned int w = 0, h = 0;	160	unsigned int w = h_scale;
262	unsigned int n;	161	unsigned int h = v_scale;
263	unsigned long new_flags = (flags & (~geometryFlags));	162	unsigned long new_flags = 0;
264	char *p;
265	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
266		163
267	if (geom == NULL)	164	if (geom == NULL)
268	return false;	165	return false;
269		166
270	char str[MAXLEN_GEOM];	167	if (geom[0])
271
272	while (isspace(*geom)) ++geom;
273	if ((p = strchr (geom, ';')) == NULL)
274	p = strchr (geom, '\0');
275
276	n = (p - geom);
277	if (n < MAXLEN_GEOM)
278	{	168	{
279	char *ops;	169	char **arr = rxvt_strsplit (':', geom);
280	new_flags |= geometrySet;
281		170
282	memcpy (str, geom, n);	171	for (int i = 0; arr[i]; i++)
283	str[n] = '\0';
284	if (str[0] == ':')
285	ops = &str[0];
286	else if (str[0] != 'x' && str[0] != 'X' && isalpha(str[0]))
287	ops = &str[0];
288	else
289	{
290	char *tmp;
291	ops = strchr (str, ':');
292	if (ops != NULL)
293	{	172	{
294	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);	173	if (!strcasecmp (arr[i], "style=tiled"))
295	*(++tmp) = '\0';
296	if (ops == tmp) ++ops;
297	}	174	{
		175	new_flags = BG_TILE;
		176	w = h = noScale;
		177	x = y = 0;
		178	geom_flags = WidthValue|HeightValue|XValue|YValue;
		179	}
		180	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
		181	{
		182	new_flags = BG_KEEP_ASPECT;
		183	w = h = windowScale;
		184	x = y = centerAlign;
		185	geom_flags = WidthValue|HeightValue|XValue|YValue;
		186	}
		187	else if (!strcasecmp (arr[i], "style=stretched"))
		188	{
		189	new_flags = 0;
		190	w = h = windowScale;
		191	geom_flags = WidthValue|HeightValue;
		192	}
		193	else if (!strcasecmp (arr[i], "style=centered"))
		194	{
		195	new_flags = 0;
		196	w = h = noScale;
		197	x = y = centerAlign;
		198	geom_flags = WidthValue|HeightValue|XValue|YValue;
		199	}
		200	else if (!strcasecmp (arr[i], "style=root-tiled"))
		201	{
		202	new_flags = BG_TILE|BG_ROOT_ALIGN;
		203	w = h = noScale;
		204	geom_flags = WidthValue|HeightValue;
		205	}
		206	else if (!strcasecmp (arr[i], "op=tile"))
		207	new_flags |= BG_TILE;
		208	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		209	new_flags |= BG_KEEP_ASPECT;
		210	else if (!strcasecmp (arr[i], "op=root-align"))
		211	new_flags |= BG_ROOT_ALIGN;
		212
		213	// deprecated
		214	else if (!strcasecmp (arr[i], "tile"))
		215	{
		216	new_flags |= BG_TILE;
		217	w = h = noScale;
		218	geom_flags |= WidthValue|HeightValue;
		219	}
		220	else if (!strcasecmp (arr[i], "propscale"))
		221	{
		222	new_flags |= BG_KEEP_ASPECT;
		223	w = h = windowScale;
		224	geom_flags |= WidthValue|HeightValue;
		225	}
		226	else if (!strcasecmp (arr[i], "hscale"))
		227	{
		228	new_flags |= BG_TILE;
		229	w = windowScale;
		230	h = noScale;
		231	geom_flags |= WidthValue|HeightValue;
		232	}
		233	else if (!strcasecmp (arr[i], "vscale"))
		234	{
		235	new_flags |= BG_TILE;
		236	h = windowScale;
		237	w = noScale;
		238	geom_flags |= WidthValue|HeightValue;
		239	}
		240	else if (!strcasecmp (arr[i], "scale"))
		241	{
		242	w = h = windowScale;
		243	geom_flags |= WidthValue|HeightValue;
		244	}
		245	else if (!strcasecmp (arr[i], "auto"))
		246	{
		247	w = h = windowScale;
		248	x = y = centerAlign;
		249	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		250	}
		251	else if (!strcasecmp (arr[i], "root"))
		252	{
		253	new_flags |= BG_TILE|BG_ROOT_ALIGN;
		254	w = h = noScale;
		255	geom_flags |= WidthValue|HeightValue;
		256	}
		257
		258	else
		259	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
		260	} /* done parsing ops */
		261
		262	rxvt_free_strsplit (arr);
		263	}
		264
		265	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;
		266
		267	if (!update)
		268	{
		269	if (!(geom_flags & XValue))
		270	x = y = defaultAlign;
		271	else if (!(geom_flags & YValue))
		272	y = x;
		273
		274	if (!(geom_flags & (WidthValue|HeightValue)))
		275	w = h = defaultScale;
		276	else if (!(geom_flags & HeightValue))
		277	h = w;
		278	else if (!(geom_flags & WidthValue))
		279	w = h;
		280	}
		281
		282	min_it (w, 1000);
		283	min_it (h, 1000);
		284	clamp_it (x, -100, 200);
		285	clamp_it (y, -100, 200);
		286
		287	if (bg_flags != new_flags
		288	|| h_scale != w
		289	|| v_scale != h
		290	|| h_align != x
		291	|| v_align != y)
		292	{
		293	bg_flags = new_flags;
		294	h_scale = w;
		295	v_scale = h;
		296	h_align = x;
		297	v_align = y;
		298	changed = true;
		299	}
		300
		301	return changed;
		302	}
		303
		304	void
		305	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)
		306	{
		307	int target_width = szHint.width;
		308	int target_height = szHint.height;
		309
		310	w = h_scale * target_width / 100;
		311	h = v_scale * target_height / 100;
		312
		313	if (bg_flags & BG_KEEP_ASPECT)
		314	{
		315	float scale = (float)w / image_width;
		316	min_it (scale, (float)h / image_height);
		317	w = image_width * scale + 0.5;
		318	h = image_height * scale + 0.5;
		319	}
		320
		321	if (!w) w = image_width;
		322	if (!h) h = image_height;
		323
		324	if (bg_flags & BG_ROOT_ALIGN)
		325	{
		326	x = -target_x;
		327	y = -target_y;
		328	}
		329	else
		330	{
		331	x = make_align_position (h_align, target_width, w);
		332	y = make_align_position (v_align, target_height, h);
		333	}
		334
		335	if (!(bg_flags & BG_TILE)
		336	|| h_scale || v_scale
		337	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
		338	|| image_width > target_width || image_height > target_height)
		339	bg_flags |= BG_IS_SIZE_SENSITIVE;
		340	else
		341	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
		342	}
		343
		344	# ifdef HAVE_PIXBUF
		345	bool
		346	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
		347	int src_x, int src_y, int dst_x, int dst_y,
		348	unsigned int width, unsigned int height)
		349	{
		350	XImage *ximage;
		351	char *data, *line;
		352	int bytes_per_pixel;
		353	int width_r, width_g, width_b, width_a;
		354	int sh_r, sh_g, sh_b, sh_a;
		355	uint32_t alpha_mask;
		356	int rowstride;
		357	int channels;
		358	unsigned char *row;
		359
		360	if (visual->c_class != TrueColor)
		361	return false;
		362
		363	#if XRENDER
		364	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		365	if (format)
		366	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
		367	else
		368	#endif
		369	alpha_mask = 0;
		370
		371	if (depth == 24 || depth == 32)
		372	bytes_per_pixel = 4;
		373	else if (depth == 15 || depth == 16)
		374	bytes_per_pixel = 2;
		375	else
		376	return false;
		377
		378	width_r = ecb_popcount32 (visual->red_mask);
		379	width_g = ecb_popcount32 (visual->green_mask);
		380	width_b = ecb_popcount32 (visual->blue_mask);
		381	width_a = ecb_popcount32 (alpha_mask);
		382
		383	if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
		384	return false;
		385
		386	sh_r = ecb_ctz32 (visual->red_mask);
		387	sh_g = ecb_ctz32 (visual->green_mask);
		388	sh_b = ecb_ctz32 (visual->blue_mask);
		389	sh_a = ecb_ctz32 (alpha_mask);
		390
		391	if (width > INT_MAX / height / bytes_per_pixel)
		392	return false;
		393
		394	data = (char *)malloc (width * height * bytes_per_pixel);
		395	if (!data)
		396	return false;
		397
		398	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
		399	width, height, bytes_per_pixel * 8, 0);
		400	if (!ximage)
		401	{
		402	free (data);
		403	return false;
		404	}
		405
		406	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		407
		408	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
		409	channels = gdk_pixbuf_get_n_channels (pixbuf);
		410	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
		411	line = data;
		412
		413	rgba c (0, 0, 0);
		414
		415	if (channels == 4 && alpha_mask == 0)
		416	{
		417	pix_colors[Color_bg].get (c);
		418	c.r >>= 8;
		419	c.g >>= 8;
		420	c.b >>= 8;
		421	}
		422
		423	for (int y = 0; y < height; y++)
		424	{
		425	for (int x = 0; x < width; x++)
		426	{
		427	unsigned char *pixel = row + x * channels;
		428	uint32_t value;
		429	unsigned char r, g, b, a;
		430
		431	if (channels == 4)
		432	{
		433	a = pixel[3];
		434	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
		435	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
		436	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
		437	}
		438	else
		439	{
		440	a = 0xff;
		441	r = pixel[0];
		442	g = pixel[1];
		443	b = pixel[2];
		444	}
		445
		446	value = ((r >> (8 - width_r)) << sh_r)
		447	| ((g >> (8 - width_g)) << sh_g)
		448	| ((b >> (8 - width_b)) << sh_b)
		449	| ((a >> (8 - width_a)) << sh_a);
		450
		451	if (bytes_per_pixel == 4)
		452	((uint32_t *)line)[x] = value;
		453	else
		454	((uint16_t *)line)[x] = value;
298	}	455	}
299		456
300	if (ops > str || ops == NULL)	457	row += rowstride;
301	{	458	line += ximage->bytes_per_line;
302	/* we have geometry string - let's handle it prior to applying ops */
303	geom_flags = XParseGeometry (str, &x, &y, &w, &h);
304
305	if ((geom_flags & XValue) && !(geom_flags & YValue))
306	{
307	y = x;
308	geom_flags |= YValue;
309	}
310
311	if (flags & geometrySet)
312	{
313	/* new geometry is an adjustment to the old one ! */
314	if ((geom_flags & WidthValue) && (geom_flags & HeightValue))
315	{
316	if (w == 0 && h != 0)
317	{
318	w = h_scale;
319	h = (v_scale * h) / 100;
320	}
321	else if (h == 0 && w != 0)
322	{
323	w = (h_scale * w) / 100;
324	h = v_scale;
325	}
326	}
327	if (geom_flags & XValue)
328	{
329	if (str[0] != '=')
330	{
331	y += v_align;
332	x += h_align;
333	}
334	}
335	}
336	else /* setting up geometry from scratch */
337	{
338	if (!(geom_flags & XValue))
339	{
340	/* use default geometry - centered */
341	x = y = defaultAlign;
342	}
343	else if (!(geom_flags & YValue))
344	y = x;
345
346	if ((geom_flags & (WidthValue|HeightValue)) == 0)
347	{
348	/* use default geometry - scaled */
349	w = h = defaultScale;
350	}
351	else if (geom_flags & WidthValue)
352	{
353	if (!(geom_flags & HeightValue))
354	h = w;
355	}
356	else
357	w = h;
358	}
359	} /* done parsing geometry string */
360	else if (!(flags & geometrySet))
361	{
362	/* default geometry - scaled and centered */
363	x = y = defaultAlign;
364	w = h = defaultScale;
365	}
366
367	if (!(flags & geometrySet))
368	geom_flags |= WidthValue|HeightValue|XValue|YValue;
369
370	if (ops)
371	{
372	while (*ops)
373	{
374	while (*ops == ':' || isspace(*ops)) ++ops;
375
376	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)
377	if (CHECK_GEOM_OPS ("tile"))
378	{
379	w = h = noScale;
380	geom_flags |= WidthValue|HeightValue;
381	}
382	else if (CHECK_GEOM_OPS ("propscale"))
383	{
384	if (w == 0 && h == 0)
385	{
386	w = windowScale;
387	geom_flags |= WidthValue;
388	}
389	new_flags |= propScale;
390	}
391	else if (CHECK_GEOM_OPS ("hscale"))
392	{
393	if (w == 0) w = windowScale;
394
395	h = noScale;
396	geom_flags |= WidthValue|HeightValue;
397	}
398	else if (CHECK_GEOM_OPS ("vscale"))
399	{
400	if (h == 0) h = windowScale;
401
402	w = noScale;
403	geom_flags |= WidthValue|HeightValue;
404	}
405	else if (CHECK_GEOM_OPS ("scale"))
406	{
407	if (h == 0) h = windowScale;
408	if (w == 0) w = windowScale;
409
410	geom_flags |= WidthValue|HeightValue;
411	}
412	else if (CHECK_GEOM_OPS ("auto"))
413	{
414	w = h = windowScale;
415	x = y = centerAlign;
416	geom_flags |= WidthValue|HeightValue|XValue|YValue;
417	}
418	else if (CHECK_GEOM_OPS ("root"))
419	{
420	w = h = noScale;
421	x = y = rootAlign;
422	geom_flags |= WidthValue|HeightValue|XValue|YValue;
423	}
424	# undef CHECK_GEOM_OPS
425
426	while (*ops != ':' && *ops != '\0') ++ops;
427	} /* done parsing ops */
428	}
429
430	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) ++changed;
431	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) ++changed;
432	if (check_set_align_value (geom_flags, XValue, h_align, x)) ++changed;
433	if (check_set_align_value (geom_flags, YValue, v_align, y)) ++changed;
434	}
435
436	if (new_flags != flags)
437	{	459	}
438	flags = new_flags;
439	changed++;
440	}
441		460
442	//fprintf (stderr, "flags = %lX, scale = %ux%u, align=%+d%+d\n",	461	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
443	// flags, h_scale, v_scale, h_align, v_align);	462	XDestroyImage (ximage);
444	return (changed > 0);	463	return true;
445	}	464	}
446		465
447	# ifdef HAVE_AFTERIMAGE
448	bool	466	bool
449	bgPixmap_t::render_asim (ASImage *background, ARGB32 background_tint)	467	rxvt_term::render_image (bool transparent)
450	{	468	{
451	if (target == NULL)	469	if (!pixbuf)
452	return false;	470	return false;
453		471
454	target->init_asv ();	472	if (transparent
		473	&& !(bg_flags & BG_HAS_RENDER))
		474	return false;
455		475
456	ASImage *result = 0;	476	GdkPixbuf *result;
457		477
		478	int image_width = gdk_pixbuf_get_width (pixbuf);
		479	int image_height = gdk_pixbuf_get_height (pixbuf);
		480
458	int target_width = target->szHint.width;	481	int target_width = szHint.width;
459	int target_height = target->szHint.height;	482	int target_height = szHint.height;
460	int new_pmap_width = target_width;	483	int new_pmap_width = target_width;
461	int new_pmap_height = target_height;	484	int new_pmap_height = target_height;
462		485
463	int x = 0;	486	int x = 0;
464	int y = 0;	487	int y = 0;
465	int w = h_scale * target_width / 100;	488	int w = 0;
466	int h = v_scale * target_height / 100;	489	int h = 0;
467		490
468	TIMING_TEST_START (asim);	491	get_image_geometry (image_width, image_height, w, h, x, y);
469		492
470	if (original_asim)	493	if (!(bg_flags & BG_ROOT_ALIGN)
		494	&& (x >= target_width
		495	|| y >= target_height
		496	|| x + w <= 0
		497	|| y + h <= 0))
		498	return false;
		499
		500	result = pixbuf;
		501
		502	if (w != image_width
		503	|| h != image_height)
		504	{
		505	result = gdk_pixbuf_scale_simple (pixbuf,
		506	w, h,
		507	GDK_INTERP_BILINEAR);
471	{	508	}
472	if (h_align == rootAlign || v_align == rootAlign)	509
		510	if (!result)
		511	return false;
		512
		513	bool ret = false;
		514
		515	XGCValues gcv;
		516	GC gc;
		517	Pixmap root_pmap;
		518
		519	image_width = gdk_pixbuf_get_width (result);
		520	image_height = gdk_pixbuf_get_height (result);
		521
		522	if (transparent)
		523	{
		524	root_pmap = bg_pixmap;
		525	bg_pixmap = None;
		526	}
		527	else
		528	{
		529	if (bg_flags & BG_TILE)
473	{	530	{
474	target->get_window_origin(x, y);	531	new_pmap_width = min (image_width, target_width);
475	x = -x;	532	new_pmap_height = min (image_height, target_height);
476	y = -y;
477	}	533	}
478
479	if (h_align != rootAlign)
480	x = make_align_position (h_align, target_width, w > 0 ? w : (int)original_asim->width);
481
482	if (v_align != rootAlign)
483	y = make_align_position (v_align, target_height, h > 0 ? h : (int)original_asim->height);
484	}
485
486	if (!original_asim
487	|| x >= target_width
488	|| y >= target_height
489	|| (w > 0 && x + w <= 0)
490	|| (h > 0 && y + h <= 0))
491	{	534	}
492	if (background)
493	{
494	new_pmap_width = background->width;
495	new_pmap_height = background->height;
496	result = background;
497		535
498	if (background_tint != TINT_LEAVE_SAME)	536	if (bg_pixmap == None
		537	|| bg_pmap_width != new_pmap_width
		538	|| bg_pmap_height != new_pmap_height)
		539	{
		540	if (bg_pixmap)
		541	XFreePixmap (dpy, bg_pixmap);
		542	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
		543	bg_pmap_width = new_pmap_width;
		544	bg_pmap_height = new_pmap_height;
		545	}
		546
		547	gcv.foreground = pix_colors[Color_bg];
		548	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
		549
		550	if (gc)
		551	{
		552	if (bg_flags & BG_TILE)
499	{	553	{
500	ASImage* tmp = tile_asimage (target->asv, background, 0, 0,	554	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
501	target_width, target_height, background_tint,	555	pixbuf_to_pixmap (result, tile, gc,
502	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);	556	0, 0,
503	if (tmp)	557	0, 0,
504	result = tmp;	558	image_width, image_height);
505	}	559
		560	gcv.tile = tile;
		561	gcv.fill_style = FillTiled;
		562	gcv.ts_x_origin = x;
		563	gcv.ts_y_origin = y;
		564	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		565
		566	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		567	XFreePixmap (dpy, tile);
506	}	568	}
507	else	569	else
508	new_pmap_width = new_pmap_height = 0;
509	}
510	else
511	{
512	result = original_asim;
513
514	if ((w > 0 && w != original_asim->width)
515	|| (h > 0 && h != original_asim->height))
516	{
517	result = scale_asimage (target->asv, original_asim,
518	w > 0 ? w : original_asim->width,
519	h > 0 ? h : original_asim->height,
520	background ? ASA_ASImage : ASA_XImage,
521	100, ASIMAGE_QUALITY_DEFAULT);
522	}	570	{
523
524	if (background == NULL)
525	{
526	/* if tiling - pixmap has to be sized exactly as the image,
527	but there is no need to make it bigger than the window! */
528	if (h_scale == 0)
529	new_pmap_width = min (result->width, target_width);
530	if (v_scale == 0)
531	new_pmap_height = min (result->height, target_height);
532	/* we also need to tile our image in one or both directions */
533	if (h_scale == 0 || v_scale == 0)
534	{
535	ASImage *tmp = tile_asimage (target->asv, result,
536	(h_scale > 0) ? 0 : (int)result->width - x,
537	(v_scale > 0) ? 0 : (int)result->height - y,
538	new_pmap_width,
539	new_pmap_height,
540	TINT_LEAVE_SAME, ASA_XImage,
541	100, ASIMAGE_QUALITY_DEFAULT);
542	if (tmp)
543	{
544	if (result != original_asim)
545	destroy_asimage (&result);
546
547	result = tmp;
548	}
549	}
550	}
551	else
552	{
553	/* if blending background and image - pixmap has to be sized same as target window */
554	ASImageLayer *layers = create_image_layers (2);
555	ASImage *merged_im = NULL;
556
557	layers[0].im = background;
558	layers[0].clip_width = target_width;
559	layers[0].clip_height = target_height;
560	layers[0].tint = background_tint;
561	layers[1].im = result;
562
563	if (w <= 0)
564	{
565	/* tile horizontally */
566	while (x > 0) x -= (int)result->width;
567	layers[1].dst_x = x;
568	layers[1].clip_width = result->width+target_width;
569	}
570	else
571	{
572	/* clip horizontally */
573	layers[1].dst_x = x;
574	layers[1].clip_width = result->width;
575	}
576
577	if (h <= 0)
578	{
579	while (y > 0) y -= (int)result->height;
580	layers[1].dst_y = y;
581	layers[1].clip_height = result->height + target_height;
582	}
583	else
584	{
585	layers[1].dst_y = y;
586	layers[1].clip_height = result->height;
587	}
588
589	if (target->rs[Rs_blendtype])
590	{
591	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
592	if (layers[1].merge_scanlines == NULL)
593	layers[1].merge_scanlines = alphablend_scanlines;
594	}
595
596	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
597	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
598
599	if (tmp)
600	{
601	if (result != original_asim)
602	destroy_asimage (&result);
603
604	result = tmp;
605	}
606
607	free (layers);
608	}
609	}
610	TIMING_TEST_PRINT_RESULT (asim);
611
612	if (pixmap)
613	{
614	if (result == NULL
615	|| pmap_width != new_pmap_width
616	|| pmap_height != new_pmap_height
617	|| pmap_depth != target->depth)
618	{
619	XFreePixmap (target->dpy, pixmap);
620	pixmap = None;
621	}
622	}
623
624	if (result)
625	{
626	XGCValues gcv;
627	GC gc;
628
629	/* create Pixmap */
630	if (pixmap == None)
631	{
632	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
633	pmap_width = new_pmap_width;
634	pmap_height = new_pmap_height;
635	pmap_depth = target->depth;
636	}
637	/* fill with background color ( if result's not completely overlapping it)*/
638	gcv.foreground = target->pix_colors[Color_bg];
639	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
640
641	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;	571	int src_x, src_y, dst_x, dst_y;
642	int dst_width = result->width, dst_height = result->height;	572	int dst_width, dst_height;
643	if (background == NULL)	573
644	{
645	if (h_scale > 0) src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );	574	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
646	if (v_scale > 0) src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);	575	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
647		576
648	if (dst_x > 0 || dst_y > 0	577	if (dst_x > 0 || dst_y > 0
649	|| dst_x + dst_width < new_pmap_width	578	|| dst_x + dst_width < new_pmap_width
650	|| dst_y + dst_height < new_pmap_height)	579	|| dst_y + dst_height < new_pmap_height)
651	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	580	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		581
		582	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
		583	pixbuf_to_pixmap (result, bg_pixmap, gc,
		584	src_x, src_y,
		585	dst_x, dst_y,
		586	dst_width, dst_height);
652	}	587	}
653		588
654	/* put result on pixmap */	589	#if XRENDER
655	if (dst_x < new_pmap_width && dst_y < new_pmap_height)	590	if (transparent)
656	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
657
658	if (result != background && result != original_asim)
659	destroy_asimage (&result);
660
661	XFreeGC (target->dpy, gc);
662	TIMING_TEST_PRINT_RESULT (asim);
663	}
664
665	return true;
666	}
667	# endif /* HAVE_AFTERIMAGE */
668
669	bool
670	bgPixmap_t::set_file (const char *file)
671	{
672	assert (file);
673
674	if (*file)
675	{
676	# ifdef HAVE_AFTERIMAGE
677	if (!target->asimman)
678	target->asimman = create_generic_imageman (target->rs[Rs_path]);
679
680	if (char *f = strchr (file, ';'))
681	{	591	{
682	size_t len = f - file;	592	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
683	f = (char *)malloc (len + 1);	593
684	memcpy (f, file, len);	594	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);
685	f[len] = '\0';	595
686	original_asim = get_asimage (target->asimman, f, 0xFFFFFFFF, 100);	596	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
687	free (f);	597
		598	Picture mask = create_xrender_mask (dpy, vt, False, False);
		599
		600	XRenderColor mask_c;
		601
		602	mask_c.alpha = 0x8000;
		603	mask_c.red =
		604	mask_c.green =
		605	mask_c.blue = 0;
		606	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		607
		608	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
		609
		610	XRenderFreePicture (dpy, src);
		611	XRenderFreePicture (dpy, dst);
		612	XRenderFreePicture (dpy, mask);
688	}	613	}
		614	#endif
		615
		616	XFreeGC (dpy, gc);
		617
		618	ret = true;
		619	}
		620
		621	if (result != pixbuf)
		622	g_object_unref (result);
		623
		624	if (transparent)
		625	XFreePixmap (dpy, root_pmap);
		626
		627	return ret;
		628	}
		629	# endif /* HAVE_PIXBUF */
		630
		631	bool
		632	rxvt_term::bg_set_file (const char *file)
		633	{
		634	if (!file || !*file)
		635	return false;
		636
		637	bool ret = false;
		638	const char *p = strchr (file, ';');
		639
		640	if (p)
		641	{
		642	size_t len = p - file;
		643	char *f = rxvt_temp_buf<char> (len + 1);
		644	memcpy (f, file, len);
		645	f[len] = '\0';
		646	file = f;
		647	}
		648
		649	# ifdef HAVE_PIXBUF
		650	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
		651	if (image)
		652	{
		653	if (pixbuf)
		654	g_object_unref (pixbuf);
		655	pixbuf = image;
		656	bg_flags |= BG_IS_FROM_FILE;
		657	ret = true;
		658	}
		659	# endif
		660
		661	if (ret)
		662	{
		663	if (p)
		664	bg_set_geometry (p + 1);
689	else	665	else
690	original_asim = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	666	bg_set_default_geometry ();
		667	}
691		668
692	return original_asim;	669	return ret;
693	# endif	670	}
		671
		672	# endif /* BG_IMAGE_FROM_FILE */
		673
		674	# ifdef ENABLE_TRANSPARENCY
		675	bool
		676	rxvt_term::bg_set_transparent ()
		677	{
		678	if (!(bg_flags & BG_IS_TRANSPARENT))
		679	{
		680	bg_flags |= BG_IS_TRANSPARENT;
		681	return true;
694	}	682	}
695		683
696	return false;	684	return false;
697	}	685	}
698		686
699	# endif /* BG_IMAGE_FROM_FILE */
700
701	# ifdef ENABLE_TRANSPARENCY
702	bool	687	bool
703	bgPixmap_t::set_transparent ()	688	rxvt_term::bg_set_blur (const char *geom)
704	{	689	{
705	if (!(flags & isTransparent))	690	bool changed = false;
706	{
707	flags |= isTransparent;
708	return true;
709	}
710
711	return false;
712	}
713
714	bool
715	bgPixmap_t::set_blur_radius (const char *geom)
716	{
717	int changed = 0;
718	unsigned int hr, vr;	691	unsigned int hr, vr;
719	int junk;	692	int junk;
720	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	693	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
721		694
722	if (!(geom_flags&WidthValue))	695	if (!(geom_flags & WidthValue))
723	hr = 1;	696	hr = 1;
724	if (!(geom_flags&HeightValue))	697	if (!(geom_flags & HeightValue))
725	vr = hr;	698	vr = hr;
726		699
		700	min_it (hr, 128);
		701	min_it (vr, 128);
		702
727	if (h_blurRadius != hr)	703	if (h_blurRadius != hr)
728	{	704	{
729	++changed;	705	changed = true;
730	h_blurRadius = hr;	706	h_blurRadius = hr;
731	}	707	}
732		708
733	if (v_blurRadius != vr)	709	if (v_blurRadius != vr)
734	{	710	{
735	++changed;	711	changed = true;
736	v_blurRadius = vr;	712	v_blurRadius = vr;
737	}	713	}
738		714
739	if (v_blurRadius == 0 && h_blurRadius == 0)	715	if (h_blurRadius && v_blurRadius)
740	flags &= ~blurNeeded;	716	bg_flags |= BG_NEEDS_BLUR;
741	else	717	else
742	flags |= blurNeeded;	718	bg_flags &= ~BG_NEEDS_BLUR;
743		719
744	return (changed>0);	720	return changed;
745	}	721	}
746		722
747	static inline unsigned long	723	void
748	compute_tint_shade_flags (rxvt_color *tint, int shade)	724	rxvt_term::set_tint_shade_flags ()
749	{	725	{
750	unsigned long flags = 0;	726	if (shade != 100 || (bg_flags & BG_TINT_SET))
751	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	727	bg_flags |= BG_NEEDS_TINT;
752	bool has_shade = (shade > 0 && shade < 100) || (shade > 100 && shade < 200);	728	else
		729	bg_flags &= ~BG_NEEDS_TINT;
		730	}
753		731
754	if (tint)	732	bool
		733	rxvt_term::bg_set_tint (rxvt_color &new_tint)
		734	{
		735	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
755	{	736	{
		737	tint = new_tint;
		738	bg_flags |= BG_TINT_SET;
		739
		740	rgba c;
756	tint->get (c);	741	tint.get (c);
757	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)	742	if ((c.r <= 0x00ff || c.r >= 0xff00)
758	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)	743	&& (c.g <= 0x00ff || c.g >= 0xff00)
759	&& IS_COMPONENT_WHOLESOME (c.g)	744	&& (c.b <= 0x00ff || c.b >= 0xff00))
760	&& IS_COMPONENT_WHOLESOME (c.b))	745	bg_flags |= BG_TINT_BITAND;
761	flags |= bgPixmap_t::tintWholesome;
762	# undef IS_COMPONENT_WHOLESOME
763	}
764
765	if (has_shade)
766	flags |= bgPixmap_t::tintNeeded;
767	else if (tint)
768	{
769	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)
770	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))
771	{
772	flags |= bgPixmap_t::tintNeeded;
773	}
774	}
775
776	if (flags & bgPixmap_t::tintNeeded)
777	{
778	if (flags & bgPixmap_t::tintWholesome)
779	flags |= bgPixmap_t::tintServerSide;
780	else	746	else
781	{	747	bg_flags &= ~BG_TINT_BITAND;
782	#if XFT	748
783	flags |= bgPixmap_t::tintServerSide;	749	set_tint_shade_flags ();
		750	return true;
		751	}
		752
		753	return false;
		754	}
		755
		756	bool
		757	rxvt_term::bg_set_shade (const char *shade_str)
		758	{
		759	int new_shade = atoi (shade_str);
		760
		761	clamp_it (new_shade, -100, 200);
		762	if (new_shade < 0)
		763	new_shade = 200 - (100 + new_shade);
		764
		765	if (new_shade != shade)
		766	{
		767	shade = new_shade;
		768	set_tint_shade_flags ();
		769	return true;
		770	}
		771
		772	return false;
		773	}
		774
		775	#if XRENDER
		776	static void
		777	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
		778	{
		779	double sigma = radius / 2.0;
		780	double scale = sqrt (2.0 * M_PI) * sigma;
		781	double sum = 0.0;
		782
		783	for (int i = 0; i < width; i++)
		784	{
		785	double x = i - width / 2;
		786	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
		787	sum += kernel[i];
		788	}
		789
		790	params[0] = XDoubleToFixed (width);
		791	params[1] = XDoubleToFixed (1);
		792
		793	for (int i = 0; i < width; i++)
		794	params[i+2] = XDoubleToFixed (kernel[i] / sum);
		795	}
784	#endif	796	#endif
		797
		798	bool
		799	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
		800	{
		801	bool ret = false;
		802	#if XRENDER
		803	if (!(bg_flags & BG_HAS_RENDER_CONV))
		804	return false;
		805
		806	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
		807	double *kernel = (double *)malloc (size * sizeof (double));
		808	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
		809
		810	XRenderPictureAttributes pa;
		811	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		812
		813	pa.repeat = RepeatPad;
		814	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		815	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
		816	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		817	XFreePixmap (dpy, tmp);
		818
		819	if (kernel && params)
		820	{
		821	size = h_blurRadius * 2 + 1;
		822	get_gaussian_kernel (h_blurRadius, size, kernel, params);
		823
		824	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		825	XRenderComposite (dpy,
		826	PictOpSrc,
		827	src,
		828	None,
		829	dst,
		830	0, 0,
		831	0, 0,
		832	0, 0,
		833	width, height);
		834
		835	::swap (src, dst);
		836
		837	size = v_blurRadius * 2 + 1;
		838	get_gaussian_kernel (v_blurRadius, size, kernel, params);
		839	::swap (params[0], params[1]);
		840
		841	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		842	XRenderComposite (dpy,
		843	PictOpSrc,
		844	src,
		845	None,
		846	dst,
		847	0, 0,
		848	0, 0,
		849	0, 0,
		850	width, height);
		851
		852	ret = true;
		853	}
		854
		855	free (kernel);
		856	free (params);
		857	XRenderFreePicture (dpy, src);
		858	XRenderFreePicture (dpy, dst);
		859	#endif
		860	return ret;
		861	}
		862
		863	bool
		864	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
		865	{
		866	bool ret = false;
		867
		868	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
		869	{
		870	XGCValues gcv;
		871	GC gc;
		872
		873	/* In this case we can tint image server-side getting significant
		874	* performance improvements, as we eliminate XImage transfer
		875	*/
		876	gcv.foreground = Pixel (tint);
		877	gcv.function = GXand;
		878	gcv.fill_style = FillSolid;
		879	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
		880	if (gc)
		881	{
		882	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
		883	ret = true;
		884	XFreeGC (dpy, gc);
785	}	885	}
786	}	886	}
787		887	# if XRENDER
788	return flags;	888	else if (bg_flags & BG_HAS_RENDER)
789	}
790
791	bool
792	bgPixmap_t::set_tint (rxvt_color &new_tint)
793	{
794	if (tint != new_tint)
795	{	889	{
796	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);	890	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
797	tint = new_tint;	891
798	flags = (flags & ~tintFlags) | new_flags | tintSet;	892	if (bg_flags & BG_TINT_SET)
		893	tint.get (c);
		894
		895	if (shade <= 100)
		896	{
		897	c.r = c.r * shade / 100;
		898	c.g = c.g * shade / 100;
		899	c.b = c.b * shade / 100;
		900	}
		901	else
		902	{
		903	c.r = c.r * (200 - shade) / 100;
		904	c.g = c.g * (200 - shade) / 100;
		905	c.b = c.b * (200 - shade) / 100;
		906	}
		907
		908	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		909
		910	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
		911
		912	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
		913
		914	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
		915
		916	XRenderColor mask_c;
		917
		918	mask_c.alpha = 0xffff;
		919	mask_c.red =
		920	mask_c.green =
		921	mask_c.blue = 0;
		922	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		923
		924	mask_c.alpha = 0;
		925	mask_c.red = 0xffff - c.r;
		926	mask_c.green = 0xffff - c.g;
		927	mask_c.blue = 0xffff - c.b;
		928	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		929
		930	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		931
		932	if (shade > 100)
		933	{
		934	mask_c.alpha = 0;
		935	mask_c.red =
		936	mask_c.green =
		937	mask_c.blue = 0xffff * (shade - 100) / 100;
		938	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		939
		940	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		941	}
		942
799	return true;	943	ret = true;
800	}
801		944
802	return false;	945	XRenderFreePicture (dpy, mask_pic);
803	}	946	XRenderFreePicture (dpy, overlay_pic);
804		947	XRenderFreePicture (dpy, back_pic);
805	bool
806	bgPixmap_t::unset_tint ()
807	{
808	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
809
810	if (new_flags != (flags & tintFlags))
811	{	948	}
812	flags = (flags&~tintFlags)|new_flags;	949	# endif
813	return true;
814	}
815		950
816	return false;	951	return ret;
817	}	952	}
818		953
819	bool	954	/*
820	bgPixmap_t::set_shade (const char *shade_str)	955	* Builds a pixmap of the same size as the terminal window that contains
821	{
822	int new_shade = (shade_str) ? atoi (shade_str) : 0;
823
824	if (new_shade < 0 && new_shade > -100)
825	new_shade = 200 - (100 + new_shade);
826	else if (new_shade == 100)
827	new_shade = 0;
828
829	if (new_shade != shade)
830	{
831	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
832	shade = new_shade;
833	flags = (flags & (~tintFlags | tintSet)) | new_flags;
834	return true;
835	}
836
837	return false;
838	}
839
840	/* make_transparency_pixmap()
841	* Builds a pixmap sized the same as terminal window, with depth same as the root window
842	* that pixmap contains tiled portion of the root pixmap that is supposed to be covered by	956	* the tiled portion of the root pixmap that is supposed to be covered by
843	* our window.	957	* our window.
844	*/	958	*/
845	unsigned long	959	bool
846	bgPixmap_t::make_transparency_pixmap ()	960	rxvt_term::make_transparency_pixmap ()
847	{	961	{
848	unsigned long result = 0;	962	bool ret = false;
849		963
850	if (target == NULL)
851	return 0;
852
853	/* root dimentions may change from call to call - but Display structure should	964	/* root dimensions may change from call to call - but Display structure should
854	* be always up-to-date, so let's use it :	965	* be always up-to-date, so let's use it :
855	*/	966	*/
856	Window root = target->display->root;
857	int screen = target->display->screen;	967	int screen = display->screen;
858	Display *dpy = target->dpy;	968	int root_depth = DefaultDepth (dpy, screen);
859	int root_width = DisplayWidth (dpy, screen);	969	int root_width = DisplayWidth (dpy, screen);
860	int root_height = DisplayHeight (dpy, screen);	970	int root_height = DisplayHeight (dpy, screen);
861	unsigned int root_pmap_width, root_pmap_height;	971	unsigned int root_pmap_width, root_pmap_height;
862	int window_width = target->szHint.width;	972	int window_width = szHint.width;
863	int window_height = target->szHint.height;	973	int window_height = szHint.height;
864	int sx, sy;	974	int sx, sy;
865	XGCValues gcv;	975	XGCValues gcv;
		976	GC gc;
866		977
867	TIMING_TEST_START (tp);	978	sx = target_x;
868	target->get_window_origin (sx, sy);	979	sy = target_y;
869		980
870	/* check if we are outside of the visible part of the virtual screen : */	981	/* check if we are outside of the visible part of the virtual screen : */
871	if (sx + window_width <= 0 || sy + window_height <= 0	982	if (sx + window_width <= 0 || sy + window_height <= 0
872	|| sx >= root_width || sy >= root_height)	983	|| sx >= root_width || sy >= root_height)
873	return 0;	984	return 0;
874		985
		986	// validate root pixmap and get its size
875	if (root_pixmap != None)	987	if (root_pixmap != None)
876	{	988	{
877	/* we want to validate the pixmap and get it's size at the same time : */	989	Window wdummy;
878	int junk;	990	int idummy;
879	unsigned int ujunk;	991	unsigned int udummy;
880	/* root pixmap may be bad - allow a error */	992
881	target->allowedxerror = -1;	993	allowedxerror = -1;
882		994
883	if (!XGetGeometry (dpy, root_pixmap, &root, &junk, &junk, &root_pmap_width, &root_pmap_height, &ujunk, &ujunk))	995	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))
884	root_pixmap = None;	996	root_pixmap = None;
885		997
886	target->allowedxerror = 0;	998	allowedxerror = 0;
887	}
888
889	Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth);
890	GC gc = NULL;
891
892	if (tiled_root_pmap == None) /* something really bad happened - abort */
893	return 0;
894
895	if (root_pixmap == None)
896	{	999	}
897	/* use tricks to obtain the root background image :*/
898	/* we want to create Overrideredirect window overlapping out window
899	with background type of Parent Relative and then grab it */
900	XSetWindowAttributes attr;
901	Window src;
902	bool success = false;
903		1000
904	attr.background_pixmap = ParentRelative;	1001	Pixmap recoded_root_pmap = root_pixmap;
905	attr.backing_store = Always;
906	attr.event_mask = ExposureMask;
907	attr.override_redirect = True;
908	src = XCreateWindow (dpy, root, sx, sy, window_width, window_height, 0,
909	CopyFromParent, CopyFromParent, CopyFromParent,
910	CWBackPixmap|CWBackingStore|CWOverrideRedirect|CWEventMask,
911	&attr);
912		1002
913	if (src != None)	1003	if (root_pixmap != None && root_depth != depth)
914	{	1004	{
915	XEvent event;	1005	#if XRENDER
916	int ev_count = 0;	1006	if (bg_flags & BG_HAS_RENDER)
917	XGrabServer (dpy);
918	XMapRaised (dpy, src);
919	XSync (dpy, False);
920
921	/* XSync should get window where it's properly exposed,
922	* but to be on the safe side - let's check for the actual event to arrive : */
923	while (XCheckWindowEvent (dpy, src, ExposureMask, &event))
924	++ev_count;
925
926	if (ev_count > 0);
927	{
928	/* hooray! - we can grab the image! */
929	gc = XCreateGC (dpy, root, 0, NULL);
930	if (gc)
931	{
932	XCopyArea (dpy, src, tiled_root_pmap, gc, 0, 0, window_width, window_height, 0, 0);
933	success = true;
934	}
935	}
936
937	XDestroyWindow (dpy, src);
938	XUngrabServer (dpy);
939	//fprintf (stderr, "%s:%d: ev_count = %d\n", __FUNCTION__, __LINE__, ev_count);
940	}
941
942	if (!success)
943	{	1007	{
944	XFreePixmap (dpy, tiled_root_pmap);	1008	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
945	tiled_root_pmap = None;
946	}
947	else
948	result |= transpPmapTiled;
949	}
950	else
951	{
952	/* strightforward pixmap copy */
953	gcv.tile = root_pixmap;
954	gcv.fill_style = FillTiled;
955		1009
956	while (sx < 0) sx += (int)root_width;	1010	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
957	while (sy < 0) sy += (int)root_height;	1011	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
958		1012
959	gcv.ts_x_origin = -sx;
960	gcv.ts_y_origin = -sy;
961	gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
962
963	if (gc)
964	{
965	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
966	result |= transpPmapTiled;
967	}
968	}
969	TIMING_TEST_PRINT_RESULT (tp);
970
971	if (tiled_root_pmap != None)
972	{
973	if (!need_client_side_rendering ())
974	{
975	if ((flags & tintNeeded))
976	{
977	if (flags & tintWholesome)
978	{
979	/* In this case we can tint image server-side getting significant
980	* performance improvements, as we eliminate XImage transfer
981	*/
982	gcv.foreground = Pixel (tint);
983	gcv.function = GXand;
984	gcv.fill_style = FillSolid;
985	if (gc)
986	XChangeGC (dpy, gc, GCFillStyle | GCForeground | GCFunction, &gcv);
987	else
988	gc = XCreateGC (dpy, root, GCFillStyle | GCForeground | GCFunction, &gcv);
989	if (gc)
990	{
991	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
992	result |= transpPmapTinted;
993	}
994	}
995	else
996	{
997	# if XFT
998	Picture back_pic = 0;
999	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1000
1001	if (flags & tintSet)
1002	tint.get (c);
1003
1004	if (shade > 0 && shade < 100)
1005	{
1006	c.r = (c.r * shade) / 100;
1007	c.g = (c.g * shade) / 100;
1008	c.b = (c.b * shade) / 100;
1009	}
1010	else if (shade > 100 && shade < 200)
1011	{
1012	c.r = (c.r * (200 - shade)) / 100;
1013	c.g = (c.g * (200 - shade)) / 100;
1014	c.b = (c.b * (200 - shade)) / 100;
1015	}
1016
1017	XRenderPictFormat pf;
1018	pf.type = PictTypeDirect;
1019	pf.depth = 32;
1020	pf.direct.redMask = 0xff;
1021	pf.direct.greenMask = 0xff;
1022	pf.direct.blueMask = 0xff;
1023	pf.direct.alphaMask = 0xff;
1024
1025	XRenderPictFormat *solid_format = XRenderFindFormat (dpy,	1013	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1026	(PictFormatType|
1027	PictFormatDepth|
1028	PictFormatRedMask|
1029	PictFormatGreenMask|
1030	PictFormatBlueMask|
1031	PictFormatAlphaMask),
1032	&pf,
1033	0);
1034	XRenderPictFormat *root_format = XRenderFindVisualFormat (dpy, DefaultVisualOfScreen (ScreenOfDisplay (dpy, target->display->screen)));
1035	XRenderPictureAttributes pa ;
1036
1037	back_pic = XRenderCreatePicture (dpy, tiled_root_pmap, root_format, 0, &pa);	1014	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1038		1015
1039	pa.repeat = True;	1016	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
1040		1017
1041	Pixmap overlay_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1042	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1043	XFreePixmap (dpy, overlay_pmap);
1044
1045	pa.component_alpha = True;
1046	Pixmap mask_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1047	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1048	XFreePixmap (dpy, mask_pmap);
1049
1050	if (mask_pic && overlay_pic && back_pic)
1051	{
1052	XRenderColor mask_c;
1053
1054	memset (&mask_c, (shade > 100) ? 0xFF : 0x0, sizeof (mask_c));
1055	mask_c.alpha = 0xffff;
1056	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1057
1058	mask_c.alpha = 0;
1059	mask_c.red = 0xffff - c.r;
1060	mask_c.green = 0xffff - c.g;
1061	mask_c.blue = 0xffff - c.b;
1062	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1063	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, window_width, window_height);
1064	result |= transpPmapTinted;
1065	}
1066
1067	XRenderFreePicture (dpy, mask_pic);	1018	XRenderFreePicture (dpy, src);
1068	XRenderFreePicture (dpy, overlay_pic);
1069	XRenderFreePicture (dpy, back_pic);	1019	XRenderFreePicture (dpy, dst);
1070	# if DO_TIMING_TEST
1071	XSync (dpy, False);
1072	# endif
1073	# endif
1074	}
1075	}
1076	} /* server side rendering completed */
1077
1078	if (pixmap)
1079	XFreePixmap (dpy, pixmap);
1080
1081	pixmap = tiled_root_pmap;
1082	pmap_width = window_width;
1083	pmap_height = window_height;
1084	pmap_depth = root_depth;
1085	}
1086
1087	if (gc)
1088	XFreeGC (dpy, gc);
1089
1090	TIMING_TEST_PRINT_RESULT (tp);
1091
1092	return result;
1093	}
1094
1095	bool
1096	bgPixmap_t::set_root_pixmap ()
1097	{
1098	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1099	if (new_root_pixmap == None)
1100	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1101
1102	if (new_root_pixmap != root_pixmap)
1103	{
1104	root_pixmap = new_root_pixmap;
1105	return true;
1106	}
1107
1108	return false;
1109	}
1110	# endif /* ENABLE_TRANSPARENCY */
1111
1112	# ifndef HAVE_AFTERIMAGE
1113	static void ShadeXImage(rxvt_term *term, XImage* srcImage, int shade, int rm, int gm, int bm);
1114	# endif
1115
1116	bool
1117	bgPixmap_t::render ()
1118	{
1119	unsigned long background_flags = 0;
1120
1121	if (target == NULL)
1122	return false;
1123
1124	TIMING_TEST_START (tp);
1125
1126	invalidate ();
1127	# ifdef ENABLE_TRANSPARENCY
1128	if (flags & isTransparent)
1129	{
1130	/* we need to re-generate transparency pixmap in that case ! */
1131	background_flags = make_transparency_pixmap ();
1132	if (background_flags == 0)
1133	return false;
1134	else if ((background_flags & transpTransformations) == (flags & transpTransformations)
1135	&& pmap_depth == target->depth)
1136	flags = flags & ~isInvalid;
1137	}
1138	# endif
1139
1140	XImage *result = NULL;
1141	# ifdef HAVE_AFTERIMAGE
1142	if (original_asim
1143	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1144	{
1145	target->init_asv ();
1146
1147	ASImage *background = NULL;
1148	ARGB32 as_tint = TINT_LEAVE_SAME;
1149	if (background_flags)
1150	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
1151
1152	# ifdef ENABLE_TRANSPARENCY
1153	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
1154	{
1155	ShadingInfo as_shade;
1156	as_shade.shading = (shade == 0) ? 100 : shade;
1157
1158	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1159	if (flags & tintSet)
1160	tint.get (c);
1161	as_shade.tintColor.red = c.r;
1162	as_shade.tintColor.green = c.g;
1163	as_shade.tintColor.blue = c.b;
1164
1165	as_tint = shading2tint32 (&as_shade);
1166	}
1167
1168	if (!(background_flags & transpPmapBlured) && (flags & blurNeeded) && background != NULL)
1169	{
1170	ASImage* tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
1171	(original_asim == NULL || tint == TINT_LEAVE_SAME)?ASA_XImage:ASA_ASImage,
1172	100, ASIMAGE_QUALITY_DEFAULT);
1173	if (tmp)
1174	{
1175	destroy_asimage (&background);
1176	background = tmp;
1177	}
1178	}
1179	# endif
1180
1181	if (render_asim (background, as_tint))
1182	flags = flags & ~isInvalid;
1183	if (background)
1184	destroy_asimage (&background);
1185	}
1186	else if (background_flags && pmap_depth != target->depth)
1187	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1188
1189	# elif !XFT /* our own client-side tinting */
1190
1191	/* ATTENTION: We ASSUME that XFT will let us do all the tinting neccessary server-side.
1192	This may need to be changed in need_client_side_rendering() logic is altered !!! */
1193
1194	if (background_flags && (flags & isInvalid))
1195	{
1196	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1197
1198	if (result != NULL && !(background_flags & transpPmapTinted) && (flags & tintNeeded))
1199	{
1200	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1201	if (flags & tintSet)
1202	tint.get (c);
1203	ShadeXImage (target, result, shade, c.r, c.g, c.b);
1204	}
1205	}
1206	# endif /* HAVE_AFTERIMAGE */
1207
1208	if (result)
1209	{
1210	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1211
1212	if (gc)
1213	{
1214	if (/*pmap_depth != target->depth &&*/ pixmap != None)
1215	{
1216	XFreePixmap (target->dpy, pixmap);
1217	pixmap = None;
1218	}
1219
1220	if (pixmap == None)
1221	{
1222	pixmap = XCreatePixmap (target->dpy, target->vt, result->width, result->height, target->depth);
1223	pmap_width = result->width;
1224	pmap_height = result->height;
1225	pmap_depth = target->depth;
1226	}
1227
1228	if (pmap_depth != result->depth)
1229	{
1230	/* Bad Match error will ensue ! stupid X !!!! */
1231	if (result->depth == 24 && pmap_depth == 32)
1232	result->depth = 32;
1233	else if (result->depth == 32 && pmap_depth == 24)
1234	result->depth = 24;
1235	else
1236	{
1237	/* TODO: implement image recoding */
1238	}
1239	}
1240
1241	if (pmap_depth == result->depth)
1242	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1243
1244	XFreeGC (target->dpy, gc);
1245	flags = flags & ~isInvalid;
1246	}
1247
1248	XDestroyImage (result);
1249	}
1250
1251	if (flags & isInvalid)
1252	{
1253	if (pixmap != None)
1254	{
1255	XFreePixmap (target->dpy, pixmap);
1256	pixmap = None;
1257	}
1258	}
1259
1260	apply ();
1261
1262	XSync (target->dpy, False);
1263	valid_since = ev::now ();
1264
1265	TIMING_TEST_PRINT_RESULT (tp);
1266
1267	return true;
1268	}
1269
1270	bool
1271	bgPixmap_t::set_target (rxvt_term *new_target)
1272	{
1273	if (new_target)
1274	if (target != new_target)
1275	{
1276	target = new_target;
1277	# ifdef ENABLE_TRANSPARENCY
1278	root_depth = DefaultDepthOfScreen (ScreenOfDisplay (target->dpy, target->display->screen));
1279	# endif
1280	return true;
1281	}
1282
1283	return false;
1284	}
1285
1286	void
1287	bgPixmap_t::apply ()
1288	{
1289	if (target)
1290	{
1291	flags &= ~isVtOrigin;
1292
1293	if (pixmap != None)
1294	{
1295	/* set target's background to pixmap */
1296	# ifdef ENABLE_TRANSPARENCY
1297	if (flags & isTransparent)
1298	{
1299	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1300	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1301
1302	if (target->scrollBar.win)
1303	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1304	}
1305	else
1306	# endif
1307	{
1308	flags |= isVtOrigin;
1309	/* force old pixmap dereference in case it was transparent before :*/
1310	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1311	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1312	/* do we also need to set scrollbar's background here ? */
1313
1314	if (target->scrollBar.win)
1315	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1316	}
1317	}	1020	}
1318	else	1021	else
		1022	#endif
		1023	recoded_root_pmap = None;
		1024	}
		1025
		1026	if (recoded_root_pmap == None)
		1027	return 0;
		1028
		1029	if (bg_pixmap == None
		1030	|| bg_pmap_width != window_width
		1031	|| bg_pmap_height != window_height)
		1032	{
		1033	if (bg_pixmap)
		1034	XFreePixmap (dpy, bg_pixmap);
		1035	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
		1036	bg_pmap_width = window_width;
		1037	bg_pmap_height = window_height;
		1038	}
		1039
		1040	/* straightforward pixmap copy */
		1041	while (sx < 0) sx += root_pmap_width;
		1042	while (sy < 0) sy += root_pmap_height;
		1043
		1044	gcv.tile = recoded_root_pmap;
		1045	gcv.fill_style = FillTiled;
		1046	gcv.ts_x_origin = -sx;
		1047	gcv.ts_y_origin = -sy;
		1048	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		1049
		1050	if (gc)
		1051	{
		1052	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
		1053	ret = true;
		1054	unsigned long tr_flags = bg_flags & BG_EFFECTS_FLAGS;
		1055
		1056	if (!(bg_flags & BG_CLIENT_RENDER))
		1057	{
		1058	if (bg_flags & BG_NEEDS_BLUR)
1319	{	1059	{
1320	/* set target background to a pixel */	1060	if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
1321	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);	1061	tr_flags &= ~BG_NEEDS_BLUR;
1322	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);	1062	}
1323	/* do we also need to set scrollbar's background here ? */	1063	if (bg_flags & BG_NEEDS_TINT)
1324	if (target->scrollBar.win)	1064	{
1325	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);	1065	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
		1066	tr_flags &= ~BG_NEEDS_TINT;
		1067	}
		1068	if (tr_flags & BG_NEEDS_TINT)
		1069	{
		1070	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1071	if (ximage)
		1072	{
		1073	/* our own client-side tinting */
		1074	tint_ximage (DefaultVisual (dpy, display->screen), ximage);
		1075
		1076	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1077	XDestroyImage (ximage);
		1078	}
		1079	}
		1080	} /* server side rendering completed */
		1081
		1082	XFreeGC (dpy, gc);
		1083	}
		1084
		1085	if (recoded_root_pmap != root_pixmap)
		1086	XFreePixmap (dpy, recoded_root_pmap);
		1087
		1088	return ret;
		1089	}
		1090
		1091	void
		1092	rxvt_term::bg_set_root_pixmap ()
		1093	{
		1094	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);
		1095	if (new_root_pixmap == None)
		1096	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
		1097
		1098	root_pixmap = new_root_pixmap;
		1099	}
		1100	# endif /* ENABLE_TRANSPARENCY */
		1101
		1102	bool
		1103	rxvt_term::bg_render ()
		1104	{
		1105	bool transparent = false;
		1106
		1107	bg_invalidate ();
		1108	# ifdef ENABLE_TRANSPARENCY
		1109	if (bg_flags & BG_IS_TRANSPARENT)
		1110	{
		1111	/* we need to re-generate transparency pixmap in that case ! */
		1112	transparent = make_transparency_pixmap ();
		1113	if (transparent)
		1114	bg_flags |= BG_IS_VALID;
		1115	}
		1116	# endif
		1117
		1118	# ifdef BG_IMAGE_FROM_FILE
		1119	if (bg_flags & BG_IS_FROM_FILE)
		1120	{
		1121	if (render_image (transparent))
		1122	bg_flags |= BG_IS_VALID;
		1123	}
		1124	# endif
		1125
		1126	if (!(bg_flags & BG_IS_VALID))
		1127	{
		1128	if (bg_pixmap != None)
		1129	{
		1130	XFreePixmap (dpy, bg_pixmap);
		1131	bg_pixmap = None;
1326	}	1132	}
		1133	}
1327		1134
1328	/* don't want Expose on the parent or vt. It is better to use	1135	scr_recolour (false);
1329	scr_touch or we get a great deal of flicker otherwise: */	1136	bg_flags |= BG_NEEDS_REFRESH;
1330	XClearWindow (target->dpy, target->parent[0]);
1331		1137
1332	if (target->scrollBar.win)	1138	bg_valid_since = ev::now ();
1333	{
1334	target->scrollBar.state = STATE_IDLE;
1335	target->scrollBar.show (0);
1336	}
1337		1139
1338	target->want_refresh = 1;	1140	return true;
1339	flags |= hasChanged;	1141	}
		1142
		1143	void
		1144	rxvt_term::bg_init ()
		1145	{
		1146	#ifdef ENABLE_TRANSPARENCY
		1147	shade = 100;
		1148	#endif
		1149
		1150	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
		1151	#if XRENDER
		1152	int major, minor;
		1153	if (XRenderQueryVersion (dpy, &major, &minor))
		1154	bg_flags |= BG_HAS_RENDER;
		1155	XFilters *filters = XRenderQueryFilters (dpy, vt);
		1156	if (filters)
1340	}	1157	{
		1158	for (int i = 0; i < filters->nfilter; i++)
		1159	if (!strcmp (filters->filter[i], FilterConvolution))
		1160	bg_flags |= BG_HAS_RENDER_CONV;
		1161
		1162	XFree (filters);
		1163	}
		1164	#endif
1341	}	1165	}
1342		1166
1343	#endif /* HAVE_BG_PIXMAP */	1167	#endif /* HAVE_BG_PIXMAP */
1344		1168
1345	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) && !XFT	1169	#ifdef ENABLE_TRANSPARENCY
1346	/* taken from aterm-0.4.2 */	1170	/* based on code from aterm-0.4.2 */
1347		1171
1348	typedef uint32_t RUINT32T;
1349
1350	static void	1172	static inline void
1351	ShadeXImage(rxvt_term *term, XImage* srcImage, int shade, int rm, int gm, int bm)	1173	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1352	{	1174	{
		1175	for (int i = 0; i <= mask >> sh; i++)
		1176	{
		1177	uint32_t tmp;
		1178	tmp = i * high;
		1179	tmp += (mask >> sh) * low;
		1180	lookup[i] = (tmp / 0xffff) << sh;
		1181	}
		1182	}
		1183
		1184	void
		1185	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)
		1186	{
		1187	unsigned int size_r, size_g, size_b;
1353	int sh_r, sh_g, sh_b;	1188	int sh_r, sh_g, sh_b;
1354	RUINT32T mask_r, mask_g, mask_b;	1189	uint32_t mask_r, mask_g, mask_b;
1355	RUINT32T *lookup, *lookup_r, *lookup_g, *lookup_b;	1190	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1356	unsigned int lower_lim_r, lower_lim_g, lower_lim_b;	1191	unsigned short low;
1357	unsigned int upper_lim_r, upper_lim_g, upper_lim_b;	1192	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1358	int i;
1359		1193
1360	Visual *visual = term->visual;
1361
1362	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return ;	1194	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1363
1364	if (shade == 0)
1365	shade = 100;
1366		1195
1367	/* for convenience */	1196	/* for convenience */
1368	mask_r = visual->red_mask;	1197	mask_r = visual->red_mask;
1369	mask_g = visual->green_mask;	1198	mask_g = visual->green_mask;
1370	mask_b = visual->blue_mask;	1199	mask_b = visual->blue_mask;
1371		1200
1372	/* boring lookup table pre-initialization */	1201	/* boring lookup table pre-initialization */
1373	switch (srcImage->bits_per_pixel) {	1202	sh_r = ecb_ctz32 (mask_r);
1374	case 15:	1203	sh_g = ecb_ctz32 (mask_g);
1375	if ((mask_r != 0x7c00) ||	1204	sh_b = ecb_ctz32 (mask_b);
1376	(mask_g != 0x03e0) ||	1205
1377	(mask_b != 0x001f))	1206	size_r = mask_r >> sh_r;
		1207	size_g = mask_g >> sh_g;
		1208	size_b = mask_b >> sh_b;
		1209
		1210	if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1378	return;	1211	return;
1379	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32));	1212
		1213	lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1380	lookup_r = lookup;	1214	lookup_r = lookup;
1381	lookup_g = lookup+32;	1215	lookup_g = lookup + size_r;
1382	lookup_b = lookup+32+32;	1216	lookup_b = lookup + size_r + size_g;
1383	sh_r = 10;	1217
1384	sh_g = 5;	1218	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1385	sh_b = 0;	1219
1386	break;	1220	if (bg_flags & BG_TINT_SET)
1387	case 16:	1221	tint.get (c);
1388	if ((mask_r != 0xf800) ||
1389	(mask_g != 0x07e0) ||
1390	(mask_b != 0x001f))
1391	return;
1392	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32));
1393	lookup_r = lookup;
1394	lookup_g = lookup+32;
1395	lookup_b = lookup+32+64;
1396	sh_r = 11;
1397	sh_g = 5;
1398	sh_b = 0;
1399	break;
1400	case 24:
1401	if ((mask_r != 0xff0000) ||
1402	(mask_g != 0x00ff00) ||
1403	(mask_b != 0x0000ff))
1404	return;
1405	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1406	lookup_r = lookup;
1407	lookup_g = lookup+256;
1408	lookup_b = lookup+256+256;
1409	sh_r = 16;
1410	sh_g = 8;
1411	sh_b = 0;
1412	break;
1413	case 32:
1414	if ((mask_r != 0xff0000) ||
1415	(mask_g != 0x00ff00) ||
1416	(mask_b != 0x0000ff))
1417	return;
1418	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1419	lookup_r = lookup;
1420	lookup_g = lookup+256;
1421	lookup_b = lookup+256+256;
1422	sh_r = 16;
1423	sh_g = 8;
1424	sh_b = 0;
1425	break;
1426	default:
1427	return; /* we do not support this color depth */
1428	}
1429		1222
1430	/* prepare limits for color transformation (each channel is handled separately) */	1223	/* prepare limits for color transformation (each channel is handled separately) */
1431	if (shade < 0) {	1224	if (shade > 100)
1432	shade = -shade;
1433	if (shade < 0) shade = 0;
1434	if (shade > 100) shade = 100;
1435
1436	lower_lim_r = 65535-rm;
1437	lower_lim_g = 65535-gm;
1438	lower_lim_b = 65535-bm;
1439
1440	lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100);
1441	lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100);
1442	lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100);
1443
1444	upper_lim_r = upper_lim_g = upper_lim_b = 65535;
1445	} else {
1446	if (shade < 0) shade = 0;
1447	if (shade > 100) shade = 100;
1448
1449	lower_lim_r = lower_lim_g = lower_lim_b = 0;
1450
1451	upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100);
1452	upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100);
1453	upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100);
1454	}
1455
1456	/* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */
1457	if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000 ))
1458	{	1225	{
1459	unsigned int tmp;	1226	c.r = c.r * (200 - shade) / 100;
		1227	c.g = c.g * (200 - shade) / 100;
		1228	c.b = c.b * (200 - shade) / 100;
1460		1229
1461	tmp = lower_lim_r;	1230	low = 0xffff * (shade - 100) / 100;
1462	lower_lim_r = lower_lim_b;
1463	lower_lim_b = tmp;
1464
1465	tmp = upper_lim_r;
1466	upper_lim_r = upper_lim_b;
1467	upper_lim_b = tmp;
1468	}	1231	}
		1232	else
		1233	{
		1234	c.r = c.r * shade / 100;
		1235	c.g = c.g * shade / 100;
		1236	c.b = c.b * shade / 100;
		1237
		1238	low = 0;
		1239	}
1469		1240
1470	/* fill our lookup tables */	1241	/* fill our lookup tables */
1471	for (i = 0; i <= mask_r>>sh_r; i++)	1242	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1472	{	1243	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1473	RUINT32T tmp;	1244	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1474	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r));
1475	tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r);
1476	lookup_r[i] = (tmp/65535)<<sh_r;
1477	}
1478	for (i = 0; i <= mask_g>>sh_g; i++)
1479	{
1480	RUINT32T tmp;
1481	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g));
1482	tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g);
1483	lookup_g[i] = (tmp/65535)<<sh_g;
1484	}
1485	for (i = 0; i <= mask_b>>sh_b; i++)
1486	{
1487	RUINT32T tmp;
1488	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b));
1489	tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b);
1490	lookup_b[i] = (tmp/65535)<<sh_b;
1491	}
1492		1245
1493	/* apply table to input image (replacing colors by newly calculated ones) */	1246	/* apply table to input image (replacing colors by newly calculated ones) */
1494	switch (srcImage->bits_per_pixel)	1247	if (ximage->bits_per_pixel == 32
		1248	&& ximage->byte_order == host_byte_order)
1495	{	1249	{
1496	case 15:	1250	char *line = ximage->data;
1497	{	1251
1498	unsigned short *p1, *pf, *p, *pl;	1252	for (int y = 0; y < ximage->height; y++)
1499	p1 = (unsigned short *) srcImage->data;
1500	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1501	while (p1 < pf)
1502	{	1253	{
1503	p = p1;	1254	uint32_t *p = (uint32_t *)line;
1504	pl = p1 + srcImage->width;	1255	for (int x = 0; x < ximage->width; x++)
1505	for (; p < pl; p++)
1506	{	1256	{
1507	*p = lookup_r[(*p & 0x7c00)>>10] |	1257	*p = lookup_r[(*p & mask_r) >> sh_r] |
1508	lookup_g[(*p & 0x03e0)>> 5] |	1258	lookup_g[(*p & mask_g) >> sh_g] |
1509	lookup_b[(*p & 0x001f)];	1259	lookup_b[(*p & mask_b) >> sh_b];
		1260	p++;
		1261	}
		1262	line += ximage->bytes_per_line;
1510	}	1263	}
1511	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1512	}	1264	}
1513	break;	1265	else
1514	}
1515	case 16:
1516	{
1517	unsigned short *p1, *pf, *p, *pl;
1518	p1 = (unsigned short *) srcImage->data;
1519	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1520	while (p1 < pf)
1521	{	1266	{
1522	p = p1;	1267	for (int y = 0; y < ximage->height; y++)
1523	pl = p1 + srcImage->width;	1268	for (int x = 0; x < ximage->width; x++)
1524	for (; p < pl; p++)
1525	{	1269	{
1526	*p = lookup_r[(*p & 0xf800)>>11] |	1270	unsigned long pixel = XGetPixel (ximage, x, y);
1527	lookup_g[(*p & 0x07e0)>> 5] |	1271	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1528	lookup_b[(*p & 0x001f)];	1272	lookup_g[(pixel & mask_g) >> sh_g] |
		1273	lookup_b[(pixel & mask_b) >> sh_b];
		1274	XPutPixel (ximage, x, y, pixel);
1529	}	1275	}
1530	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1531	}	1276	}
1532	break;
1533	}
1534	case 24:
1535	{
1536	unsigned char *p1, *pf, *p, *pl;
1537	p1 = (unsigned char *) srcImage->data;
1538	pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1539	while (p1 < pf)
1540	{
1541	p = p1;
1542	pl = p1 + srcImage->width * 3;
1543	for (; p < pl; p += 3)
1544	{
1545	p[0] = lookup_r[(p[0] & 0xff0000)>>16];
1546	p[1] = lookup_r[(p[1] & 0x00ff00)>> 8];
1547	p[2] = lookup_r[(p[2] & 0x0000ff)];
1548	}
1549	p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line);
1550	}
1551	break;
1552	}
1553	case 32:
1554	{
1555	RUINT32T *p1, *pf, *p, *pl;
1556	p1 = (RUINT32T *) srcImage->data;
1557	pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1558
1559	while (p1 < pf)
1560	{
1561	p = p1;
1562	pl = p1 + srcImage->width;
1563	for (; p < pl; p++)
1564	{
1565	*p = lookup_r[(*p & 0xff0000)>>16] |
1566	lookup_g[(*p & 0x00ff00)>> 8] |
1567	lookup_b[(*p & 0x0000ff)] |
1568	(*p & ~0xffffff);
1569	}
1570	p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line);
1571	}
1572	break;
1573	}
1574	}
1575		1277
1576	free (lookup);	1278	free (lookup);
1577	}	1279	}
1578	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1280	#endif /* ENABLE_TRANSPARENCY */

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