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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.43 by sf-exg, Sun Aug 29 13:40:42 2010 UTC vs.
Revision 1.213 by sf-exg, Sun May 13 21:12:01 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 { \
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;
228	int smaller = MIN (image_size,window_size);
229
230	if (align >= 0 && align <= 50)	128	if (align >= 0 && align <= 100)
231	return diff * align / 100;	129	return lerp (0, window_size - image_size, align);
232	else if (align > 50 && 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;
236	else if (align > -100 && align < 0)	130	else if (align > 100)
237	return ((align + 100) * smaller / 100) - image_size;	131	return lerp (window_size - image_size, window_size, align - 100);
238	return 0;	132	else
		133	return lerp (-image_size, 0, align + 100);
239	}	134	}
240		135
241	static inline int	136	static inline int
242	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)
243	{	138	{
244	int src_pos = 0;	139	int src_pos = 0;
245	dst_pos = 0;	140	dst_pos = pos;
246	dst_size = size;	141	dst_size = size;
247	if (pos < 0 && size > target_size)	142	if (pos < 0)
248	{	143	{
249	src_pos = -pos;	144	src_pos = -pos;
		145	dst_pos = 0;
250	dst_size += pos;	146	dst_size += pos;
251	}	147	}
252	else if (pos > 0)
253	dst_pos = pos;
254		148
255	if (dst_pos + dst_size > target_size)
256	dst_size = target_size - dst_pos;	149	min_it (dst_size, target_size - dst_pos);
257	return src_pos;	150	return src_pos;
258	}	151	}
259		152
260	bool	153	bool
261	bgPixmap_t::set_geometry (const char *geom)	154	rxvt_term::bg_set_geometry (const char *geom, bool update)
262	{	155	{
		156	bool changed = false;
263	int geom_flags = 0, changed = 0;	157	int geom_flags = 0;
264	int x = 0, y = 0;	158	int x = h_align;
		159	int y = v_align;
265	unsigned int w = 0, h = 0;	160	unsigned int w = h_scale;
266	unsigned int n;	161	unsigned int h = v_scale;
267	unsigned long new_flags = (flags & (~geometryFlags));	162	unsigned long new_flags = 0;
268	const char *p;
269	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
270		163
271	if (geom == NULL)	164	if (geom == NULL)
272	return false;	165	return false;
273		166
274	char str[MAXLEN_GEOM];	167	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	{	168	{
283	char *ops;	169	char **arr = rxvt_strsplit (':', geom);
284	new_flags |= geometrySet;
285		170
286	memcpy (str, geom, n);	171	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	{	172	{
298	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);	173	if (!strcasecmp (arr[i], "style=tiled"))
299	*(++tmp) = '\0';
300	if (ops == tmp) ++ops;
301	}	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 *line;
		352	int width_r, width_g, width_b, width_a;
		353	int sh_r, sh_g, sh_b, sh_a;
		354	uint32_t alpha_mask;
		355	int rowstride;
		356	int channels;
		357	unsigned char *row;
		358
		359	if (visual->c_class != TrueColor)
		360	return false;
		361
		362	#if XRENDER
		363	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		364	if (format)
		365	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
		366	else
		367	#endif
		368	alpha_mask = 0;
		369
		370	width_r = ecb_popcount32 (visual->red_mask);
		371	width_g = ecb_popcount32 (visual->green_mask);
		372	width_b = ecb_popcount32 (visual->blue_mask);
		373	width_a = ecb_popcount32 (alpha_mask);
		374
		375	if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
		376	return false;
		377
		378	sh_r = ecb_ctz32 (visual->red_mask);
		379	sh_g = ecb_ctz32 (visual->green_mask);
		380	sh_b = ecb_ctz32 (visual->blue_mask);
		381	sh_a = ecb_ctz32 (alpha_mask);
		382
		383	if (width > 32767 || height > 32767)
		384	return false;
		385
		386	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, 0,
		387	width, height, 32, 0);
		388	if (!ximage)
		389	return false;
		390
		391	if (height > INT_MAX / ximage->bytes_per_line
		392	|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
		393	{
		394	XDestroyImage (ximage);
		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 = ximage->data;
		404
		405	rgba c (0, 0, 0);
		406
		407	if (channels == 4 && alpha_mask == 0)
		408	{
		409	pix_colors[Color_bg].get (c);
		410	c.r >>= 8;
		411	c.g >>= 8;
		412	c.b >>= 8;
		413	}
		414
		415	for (int y = 0; y < height; y++)
		416	{
		417	for (int x = 0; x < width; x++)
		418	{
		419	unsigned char *pixel = row + x * channels;
		420	uint32_t value;
		421	unsigned char r, g, b, a;
		422
		423	if (channels == 4)
		424	{
		425	a = pixel[3];
		426	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
		427	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
		428	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
		429	}
		430	else
		431	{
		432	a = 0xff;
		433	r = pixel[0];
		434	g = pixel[1];
		435	b = pixel[2];
		436	}
		437
		438	value = ((r >> (8 - width_r)) << sh_r)
		439	| ((g >> (8 - width_g)) << sh_g)
		440	| ((b >> (8 - width_b)) << sh_b)
		441	| ((a >> (8 - width_a)) << sh_a);
		442
		443	if (ximage->bits_per_pixel == 32)
		444	((uint32_t *)line)[x] = value;
		445	else
		446	XPutPixel (ximage, x, y, value);
302	}	447	}
303		448
304	if (ops > str || ops == NULL)	449	row += rowstride;
305	{	450	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	{	451	}
442	flags = new_flags;
443	changed++;
444	}
445		452
446	//fprintf (stderr, "flags = %lX, scale = %ux%u, align=%+d%+d\n",	453	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
447	// flags, h_scale, v_scale, h_align, v_align);	454	XDestroyImage (ximage);
448	return (changed > 0);	455	return true;
449	}	456	}
450		457
451	# ifdef HAVE_AFTERIMAGE
452	bool	458	bool
453	bgPixmap_t::render_asim (ASImage *background, ARGB32 background_tint)	459	rxvt_term::render_image (bool transparent)
454	{	460	{
455	if (target == NULL)	461	if (!pixbuf)
456	return false;	462	return false;
457		463
458	target->init_asv ();	464	if (transparent
		465	&& !(bg_flags & BG_HAS_RENDER))
		466	return false;
459		467
460	ASImage *result = 0;	468	GdkPixbuf *result;
461		469
		470	int image_width = gdk_pixbuf_get_width (pixbuf);
		471	int image_height = gdk_pixbuf_get_height (pixbuf);
		472
462	int target_width = target->szHint.width;	473	int target_width = szHint.width;
463	int target_height = target->szHint.height;	474	int target_height = szHint.height;
464	int new_pmap_width = target_width;	475	int new_pmap_width = target_width;
465	int new_pmap_height = target_height;	476	int new_pmap_height = target_height;
466		477
467	int x = 0;	478	int x = 0;
468	int y = 0;	479	int y = 0;
469	int w = h_scale * target_width / 100;	480	int w = 0;
470	int h = v_scale * target_height / 100;	481	int h = 0;
471		482
472	TIMING_TEST_START (asim);	483	get_image_geometry (image_width, image_height, w, h, x, y);
473		484
474	if (original_asim)	485	if (!(bg_flags & BG_ROOT_ALIGN)
		486	&& (x >= target_width
		487	|| y >= target_height
		488	|| x + w <= 0
		489	|| y + h <= 0))
		490	return false;
		491
		492	result = pixbuf;
		493
		494	if (w != image_width
		495	|| h != image_height)
		496	{
		497	result = gdk_pixbuf_scale_simple (pixbuf,
		498	w, h,
		499	GDK_INTERP_BILINEAR);
475	{	500	}
476	if (h_align == rootAlign || v_align == rootAlign)	501
		502	if (!result)
		503	return false;
		504
		505	bool ret = false;
		506
		507	XGCValues gcv;
		508	GC gc;
		509	Pixmap root_pmap;
		510
		511	image_width = gdk_pixbuf_get_width (result);
		512	image_height = gdk_pixbuf_get_height (result);
		513
		514	if (transparent)
		515	{
		516	root_pmap = bg_pixmap;
		517	bg_pixmap = None;
		518	}
		519	else
		520	{
		521	if (bg_flags & BG_TILE)
477	{	522	{
478	target->get_window_origin(x, y);	523	new_pmap_width = min (image_width, target_width);
479	x = -x;	524	new_pmap_height = min (image_height, target_height);
480	y = -y;
481	}	525	}
482
483	if (h_align != rootAlign)
484	x = make_align_position (h_align, target_width, w > 0 ? w : (int)original_asim->width);
485
486	if (v_align != rootAlign)
487	y = make_align_position (v_align, target_height, h > 0 ? h : (int)original_asim->height);
488	}
489
490	if (!original_asim
491	|| x >= target_width
492	|| y >= target_height
493	|| (w > 0 && x + w <= 0)
494	|| (h > 0 && y + h <= 0))
495	{	526	}
496	if (background)
497	{
498	new_pmap_width = background->width;
499	new_pmap_height = background->height;
500	result = background;
501		527
502	if (background_tint != TINT_LEAVE_SAME)	528	if (bg_pixmap == None
		529	|| bg_pmap_width != new_pmap_width
		530	|| bg_pmap_height != new_pmap_height)
		531	{
		532	if (bg_pixmap)
		533	XFreePixmap (dpy, bg_pixmap);
		534	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
		535	bg_pmap_width = new_pmap_width;
		536	bg_pmap_height = new_pmap_height;
		537	}
		538
		539	gcv.foreground = pix_colors[Color_bg];
		540	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
		541
		542	if (gc)
		543	{
		544	if (bg_flags & BG_TILE)
503	{	545	{
504	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	546	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
505	target_width, target_height, background_tint,	547	pixbuf_to_pixmap (result, tile, gc,
506	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);	548	0, 0,
507	if (tmp)	549	0, 0,
508	result = tmp;	550	image_width, image_height);
509	}	551
		552	gcv.tile = tile;
		553	gcv.fill_style = FillTiled;
		554	gcv.ts_x_origin = x;
		555	gcv.ts_y_origin = y;
		556	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		557
		558	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		559	XFreePixmap (dpy, tile);
510	}	560	}
511	else	561	else
512	new_pmap_width = new_pmap_height = 0;
513	}
514	else
515	{
516	result = original_asim;
517
518	if ((w > 0 && w != original_asim->width)
519	|| (h > 0 && h != original_asim->height))
520	{
521	result = scale_asimage (target->asv, original_asim,
522	w > 0 ? w : original_asim->width,
523	h > 0 ? h : original_asim->height,
524	background ? ASA_ASImage : ASA_XImage,
525	100, ASIMAGE_QUALITY_DEFAULT);
526	}	562	{
527
528	if (background == NULL)
529	{
530	/* if tiling - pixmap has to be sized exactly as the image,
531	but there is no need to make it bigger than the window! */
532	if (h_scale == 0)
533	new_pmap_width = min (result->width, target_width);
534	if (v_scale == 0)
535	new_pmap_height = min (result->height, target_height);
536	/* we also need to tile our image in one or both directions */
537	if (h_scale == 0 || v_scale == 0)
538	{
539	ASImage *tmp = tile_asimage (target->asv, result,
540	(h_scale > 0) ? 0 : (int)result->width - x,
541	(v_scale > 0) ? 0 : (int)result->height - y,
542	new_pmap_width,
543	new_pmap_height,
544	TINT_LEAVE_SAME, ASA_XImage,
545	100, ASIMAGE_QUALITY_DEFAULT);
546	if (tmp)
547	{
548	if (result != original_asim)
549	destroy_asimage (&result);
550
551	result = tmp;
552	}
553	}
554	}
555	else
556	{
557	/* if blending background and image - pixmap has to be sized same as target window */
558	ASImageLayer *layers = create_image_layers (2);
559
560	layers[0].im = background;
561	layers[0].clip_width = target_width;
562	layers[0].clip_height = target_height;
563	layers[0].tint = background_tint;
564	layers[1].im = result;
565
566	if (w <= 0)
567	{
568	/* tile horizontally */
569	while (x > 0) x -= (int)result->width;
570	layers[1].dst_x = x;
571	layers[1].clip_width = result->width+target_width;
572	}
573	else
574	{
575	/* clip horizontally */
576	layers[1].dst_x = x;
577	layers[1].clip_width = result->width;
578	}
579
580	if (h <= 0)
581	{
582	while (y > 0) y -= (int)result->height;
583	layers[1].dst_y = y;
584	layers[1].clip_height = result->height + target_height;
585	}
586	else
587	{
588	layers[1].dst_y = y;
589	layers[1].clip_height = result->height;
590	}
591
592	if (target->rs[Rs_blendtype])
593	{
594	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
595	if (layers[1].merge_scanlines == NULL)
596	layers[1].merge_scanlines = alphablend_scanlines;
597	}
598
599	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
600	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
601
602	if (tmp)
603	{
604	if (result != original_asim)
605	destroy_asimage (&result);
606
607	result = tmp;
608	}
609
610	free (layers);
611	}
612	}
613	TIMING_TEST_PRINT_RESULT (asim);
614
615	if (pixmap)
616	{
617	if (result == NULL
618	|| pmap_width != new_pmap_width
619	|| pmap_height != new_pmap_height
620	|| pmap_depth != target->depth)
621	{
622	XFreePixmap (target->dpy, pixmap);
623	pixmap = None;
624	}
625	}
626
627	if (result)
628	{
629	XGCValues gcv;
630	GC gc;
631
632	/* create Pixmap */
633	if (pixmap == None)
634	{
635	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
636	pmap_width = new_pmap_width;
637	pmap_height = new_pmap_height;
638	pmap_depth = target->depth;
639	}
640	/* fill with background color ( if result's not completely overlapping it)*/
641	gcv.foreground = target->pix_colors[Color_bg];
642	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
643
644	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;	563	int src_x, src_y, dst_x, dst_y;
645	int dst_width = result->width, dst_height = result->height;	564	int dst_width, dst_height;
646	if (background == NULL)	565
647	{
648	if (h_scale > 0) src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );	566	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
649	if (v_scale > 0) src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);	567	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
650		568
651	if (dst_x > 0 || dst_y > 0	569	if (dst_x > 0 || dst_y > 0
652	|| dst_x + dst_width < new_pmap_width	570	|| dst_x + dst_width < new_pmap_width
653	|| dst_y + dst_height < new_pmap_height)	571	|| dst_y + dst_height < new_pmap_height)
654	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	572	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		573
		574	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
		575	pixbuf_to_pixmap (result, bg_pixmap, gc,
		576	src_x, src_y,
		577	dst_x, dst_y,
		578	dst_width, dst_height);
655	}	579	}
656		580
657	/* put result on pixmap */	581	#if XRENDER
658	if (dst_x < new_pmap_width && dst_y < new_pmap_height)	582	if (transparent)
659	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
660
661	if (result != background && result != original_asim)
662	destroy_asimage (&result);
663
664	XFreeGC (target->dpy, gc);
665	TIMING_TEST_PRINT_RESULT (asim);
666	}
667
668	return true;
669	}
670	# endif /* HAVE_AFTERIMAGE */
671
672	bool
673	bgPixmap_t::set_file (const char *file)
674	{
675	assert (file);
676
677	if (*file)
678	{
679	# ifdef HAVE_AFTERIMAGE
680	if (!target->asimman)
681	target->asimman = create_generic_imageman (target->rs[Rs_path]);
682
683	if (const char *p = strchr (file, ';'))
684	{	583	{
685	size_t len = p - file;	584	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
686	char *f = rxvt_temp_buf<char> (len + 1);	585
687	memcpy (f, file, len);	586	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);
688	f[len] = '\0';	587
689	original_asim = get_asimage (target->asimman, f, 0xFFFFFFFF, 100);	588	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
		589
		590	Picture mask = create_xrender_mask (dpy, vt, False, False);
		591
		592	XRenderColor mask_c;
		593
		594	mask_c.alpha = 0x8000;
		595	mask_c.red =
		596	mask_c.green =
		597	mask_c.blue = 0;
		598	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		599
		600	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
		601
		602	XRenderFreePicture (dpy, src);
		603	XRenderFreePicture (dpy, dst);
		604	XRenderFreePicture (dpy, mask);
690	}	605	}
		606	#endif
		607
		608	XFreeGC (dpy, gc);
		609
		610	ret = true;
		611	}
		612
		613	if (result != pixbuf)
		614	g_object_unref (result);
		615
		616	if (transparent)
		617	XFreePixmap (dpy, root_pmap);
		618
		619	return ret;
		620	}
		621	# endif /* HAVE_PIXBUF */
		622
		623	bool
		624	rxvt_term::bg_set_file (const char *file)
		625	{
		626	if (!file || !*file)
		627	return false;
		628
		629	bool ret = false;
		630	const char *p = strchr (file, ';');
		631
		632	if (p)
		633	{
		634	size_t len = p - file;
		635	char *f = rxvt_temp_buf<char> (len + 1);
		636	memcpy (f, file, len);
		637	f[len] = '\0';
		638	file = f;
		639	}
		640
		641	# ifdef HAVE_PIXBUF
		642	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
		643	if (image)
		644	{
		645	if (pixbuf)
		646	g_object_unref (pixbuf);
		647	pixbuf = image;
		648	bg_flags |= BG_IS_FROM_FILE;
		649	ret = true;
		650	}
		651	# endif
		652
		653	if (ret)
		654	{
		655	if (p)
		656	bg_set_geometry (p + 1);
691	else	657	else
692	original_asim = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	658	bg_set_default_geometry ();
693
694	return original_asim;
695	# endif
696	}	659	}
697		660
698	return false;	661	return ret;
699	}	662	}
700		663
701	# endif /* BG_IMAGE_FROM_FILE */	664	# endif /* BG_IMAGE_FROM_FILE */
702		665
703	# ifdef ENABLE_TRANSPARENCY	666	# ifdef ENABLE_TRANSPARENCY
704	bool	667	bool
705	bgPixmap_t::set_transparent ()	668	rxvt_term::bg_set_blur (const char *geom)
706	{	669	{
707	if (!(flags & isTransparent))	670	bool changed = false;
708	{
709	flags |= isTransparent;
710	return true;
711	}
712
713	return false;
714	}
715
716	bool
717	bgPixmap_t::set_blur_radius (const char *geom)
718	{
719	int changed = 0;
720	unsigned int hr, vr;	671	unsigned int hr, vr;
721	int junk;	672	int junk;
722	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	673	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
723		674
724	if (!(geom_flags&WidthValue))	675	if (!(geom_flags & WidthValue))
725	hr = 1;	676	hr = 1;
726	if (!(geom_flags&HeightValue))	677	if (!(geom_flags & HeightValue))
727	vr = hr;	678	vr = hr;
728		679
		680	min_it (hr, 128);
		681	min_it (vr, 128);
		682
729	if (h_blurRadius != hr)	683	if (h_blurRadius != hr)
730	{	684	{
731	++changed;	685	changed = true;
732	h_blurRadius = hr;	686	h_blurRadius = hr;
733	}	687	}
734		688
735	if (v_blurRadius != vr)	689	if (v_blurRadius != vr)
736	{	690	{
737	++changed;	691	changed = true;
738	v_blurRadius = vr;	692	v_blurRadius = vr;
739	}	693	}
740		694
741	if (v_blurRadius == 0 && h_blurRadius == 0)
742	flags &= ~blurNeeded;
743	else
744	flags |= blurNeeded;
745
746	return (changed>0);	695	return changed;
747	}	696	}
748		697
749	static inline unsigned long	698	bool
750	compute_tint_shade_flags (rxvt_color *tint, int shade)	699	rxvt_term::bg_set_tint (rxvt_color &new_tint)
751	{	700	{
752	unsigned long flags = 0;	701	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
753	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
754	bool has_shade = (shade > 0 && shade < 100) || (shade > 100 && shade < 200);
755
756	if (tint)
757	{	702	{
		703	tint = new_tint;
		704	bg_flags |= BG_TINT_SET;
		705
		706	rgba c;
758	tint->get (c);	707	tint.get (c);
759	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)	708	if ((c.r <= 0x00ff || c.r >= 0xff00)
760	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)	709	&& (c.g <= 0x00ff || c.g >= 0xff00)
761	&& IS_COMPONENT_WHOLESOME (c.g)	710	&& (c.b <= 0x00ff || c.b >= 0xff00))
762	&& IS_COMPONENT_WHOLESOME (c.b))	711	bg_flags |= BG_TINT_BITAND;
763	flags |= bgPixmap_t::tintWholesome;
764	# undef IS_COMPONENT_WHOLESOME
765	}
766
767	if (has_shade)
768	flags |= bgPixmap_t::tintNeeded;
769	else if (tint)
770	{
771	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)
772	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))
773	{
774	flags |= bgPixmap_t::tintNeeded;
775	}
776	}
777
778	if (flags & bgPixmap_t::tintNeeded)
779	{
780	if (flags & bgPixmap_t::tintWholesome)
781	flags |= bgPixmap_t::tintServerSide;
782	else	712	else
783	{	713	bg_flags &= ~BG_TINT_BITAND;
784	#if XFT	714
785	flags |= bgPixmap_t::tintServerSide;	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	return true;
		734	}
		735
		736	return false;
		737	}
		738
		739	#if XRENDER
		740	static void
		741	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
		742	{
		743	double sigma = radius / 2.0;
		744	double scale = sqrt (2.0 * M_PI) * sigma;
		745	double sum = 0.0;
		746
		747	for (int i = 0; i < width; i++)
		748	{
		749	double x = i - width / 2;
		750	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
		751	sum += kernel[i];
		752	}
		753
		754	params[0] = XDoubleToFixed (width);
		755	params[1] = XDoubleToFixed (1);
		756
		757	for (int i = 0; i < width; i++)
		758	params[i+2] = XDoubleToFixed (kernel[i] / sum);
		759	}
786	#endif	760	#endif
		761
		762	bool
		763	rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
		764	{
		765	bool ret = false;
		766	#if XRENDER
		767	if (!(bg_flags & BG_HAS_RENDER_CONV))
		768	return false;
		769
		770	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
		771	double *kernel = (double *)malloc (size * sizeof (double));
		772	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
		773
		774	XRenderPictureAttributes pa;
		775	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		776
		777	pa.repeat = RepeatPad;
		778	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		779	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
		780	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		781	XFreePixmap (dpy, tmp);
		782
		783	if (kernel && params)
		784	{
		785	size = h_blurRadius * 2 + 1;
		786	get_gaussian_kernel (h_blurRadius, size, kernel, params);
		787
		788	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		789	XRenderComposite (dpy,
		790	PictOpSrc,
		791	src,
		792	None,
		793	dst,
		794	0, 0,
		795	0, 0,
		796	0, 0,
		797	width, height);
		798
		799	::swap (src, dst);
		800
		801	size = v_blurRadius * 2 + 1;
		802	get_gaussian_kernel (v_blurRadius, size, kernel, params);
		803	::swap (params[0], params[1]);
		804
		805	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		806	XRenderComposite (dpy,
		807	PictOpSrc,
		808	src,
		809	None,
		810	dst,
		811	0, 0,
		812	0, 0,
		813	0, 0,
		814	width, height);
		815
		816	ret = true;
		817	}
		818
		819	free (kernel);
		820	free (params);
		821	XRenderFreePicture (dpy, src);
		822	XRenderFreePicture (dpy, dst);
		823	#endif
		824	return ret;
		825	}
		826
		827	bool
		828	rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
		829	{
		830	bool ret = false;
		831
		832	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
		833	{
		834	XGCValues gcv;
		835	GC gc;
		836
		837	/* In this case we can tint image server-side getting significant
		838	* performance improvements, as we eliminate XImage transfer
		839	*/
		840	gcv.foreground = Pixel (tint);
		841	gcv.function = GXand;
		842	gcv.fill_style = FillSolid;
		843	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
		844	if (gc)
		845	{
		846	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
		847	ret = true;
		848	XFreeGC (dpy, gc);
787	}	849	}
788	}	850	}
789		851	# if XRENDER
790	return flags;	852	else if (bg_flags & BG_HAS_RENDER)
791	}
792
793	bool
794	bgPixmap_t::set_tint (rxvt_color &new_tint)
795	{
796	if (tint != new_tint)
797	{	853	{
798	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);	854	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
799	tint = new_tint;	855
800	flags = (flags & ~tintFlags) | new_flags | tintSet;	856	if (bg_flags & BG_TINT_SET)
		857	tint.get (c);
		858
		859	if (shade <= 100)
		860	{
		861	c.r = c.r * shade / 100;
		862	c.g = c.g * shade / 100;
		863	c.b = c.b * shade / 100;
		864	}
		865	else
		866	{
		867	c.r = c.r * (200 - shade) / 100;
		868	c.g = c.g * (200 - shade) / 100;
		869	c.b = c.b * (200 - shade) / 100;
		870	}
		871
		872	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		873
		874	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
		875
		876	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
		877
		878	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
		879
		880	XRenderColor mask_c;
		881
		882	mask_c.alpha = 0xffff;
		883	mask_c.red =
		884	mask_c.green =
		885	mask_c.blue = 0;
		886	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		887
		888	mask_c.alpha = 0;
		889	mask_c.red = 0xffff - c.r;
		890	mask_c.green = 0xffff - c.g;
		891	mask_c.blue = 0xffff - c.b;
		892	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		893
		894	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		895
		896	if (shade > 100)
		897	{
		898	mask_c.alpha = 0;
		899	mask_c.red =
		900	mask_c.green =
		901	mask_c.blue = 0xffff * (shade - 100) / 100;
		902	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		903
		904	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		905	}
		906
801	return true;	907	ret = true;
802	}
803		908
804	return false;	909	XRenderFreePicture (dpy, mask_pic);
805	}	910	XRenderFreePicture (dpy, overlay_pic);
806		911	XRenderFreePicture (dpy, back_pic);
807	bool
808	bgPixmap_t::unset_tint ()
809	{
810	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
811
812	if (new_flags != (flags & tintFlags))
813	{	912	}
814	flags = (flags&~tintFlags)|new_flags;	913	# endif
815	return true;
816	}
817		914
818	return false;	915	return ret;
819	}	916	}
820		917
821	bool	918	/*
822	bgPixmap_t::set_shade (const char *shade_str)	919	* Builds a pixmap of the same size as the terminal window that contains
823	{
824	int new_shade = (shade_str) ? atoi (shade_str) : 0;
825
826	if (new_shade < 0 && new_shade > -100)
827	new_shade = 200 - (100 + new_shade);
828	else if (new_shade == 100)
829	new_shade = 0;
830
831	if (new_shade != shade)
832	{
833	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
834	shade = new_shade;
835	flags = (flags & (~tintFlags | tintSet)) | new_flags;
836	return true;
837	}
838
839	return false;
840	}
841
842	/* make_transparency_pixmap()
843	* Builds a pixmap sized the same as terminal window, with depth same as the root window
844	* that pixmap contains tiled portion of the root pixmap that is supposed to be covered by	920	* the tiled portion of the root pixmap that is supposed to be covered by
845	* our window.	921	* our window.
846	*/	922	*/
847	unsigned long	923	bool
848	bgPixmap_t::make_transparency_pixmap ()	924	rxvt_term::make_transparency_pixmap ()
849	{	925	{
850	unsigned long result = 0;	926	bool ret = false;
851
852	if (target == NULL)
853	return 0;
854		927
855	/* root dimensions may change from call to call - but Display structure should	928	/* root dimensions may change from call to call - but Display structure should
856	* be always up-to-date, so let's use it :	929	* be always up-to-date, so let's use it :
857	*/	930	*/
858	Window root = target->display->root;
859	int screen = target->display->screen;	931	int screen = display->screen;
860	Display *dpy = target->dpy;	932	int root_depth = DefaultDepth (dpy, screen);
861	int root_width = DisplayWidth (dpy, screen);	933	int root_width = DisplayWidth (dpy, screen);
862	int root_height = DisplayHeight (dpy, screen);	934	int root_height = DisplayHeight (dpy, screen);
863	unsigned int root_pmap_width, root_pmap_height;	935	unsigned int root_pmap_width, root_pmap_height;
864	int window_width = target->szHint.width;	936	int window_width = szHint.width;
865	int window_height = target->szHint.height;	937	int window_height = szHint.height;
866	int sx, sy;	938	int sx, sy;
867	XGCValues gcv;	939	XGCValues gcv;
		940	GC gc;
868		941
869	TIMING_TEST_START (tp);	942	sx = target_x;
870	target->get_window_origin (sx, sy);	943	sy = target_y;
871		944
872	/* check if we are outside of the visible part of the virtual screen : */	945	/* check if we are outside of the visible part of the virtual screen : */
873	if (sx + window_width <= 0 || sy + window_height <= 0	946	if (sx + window_width <= 0 || sy + window_height <= 0
874	|| sx >= root_width || sy >= root_height)	947	|| sx >= root_width || sy >= root_height)
875	return 0;	948	return 0;
876		949
		950	// validate root pixmap and get its size
877	if (root_pixmap != None)	951	if (root_pixmap != None)
878	{	952	{
879	/* we want to validate the pixmap and get it's size at the same time : */	953	Window wdummy;
880	int junk;	954	int idummy;
881	unsigned int ujunk;	955	unsigned int udummy;
882	/* root pixmap may be bad - allow a error */	956
883	target->allowedxerror = -1;	957	allowedxerror = -1;
884		958
885	if (!XGetGeometry (dpy, root_pixmap, &root, &junk, &junk, &root_pmap_width, &root_pmap_height, &ujunk, &ujunk))	959	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))
886	root_pixmap = None;	960	root_pixmap = None;
887		961
888	target->allowedxerror = 0;	962	allowedxerror = 0;
889	}
890
891	Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth);
892	GC gc = NULL;
893
894	if (tiled_root_pmap == None) /* something really bad happened - abort */
895	return 0;
896
897	if (root_pixmap == None)
898	{	963	}
899	/* use tricks to obtain the root background image :*/
900	/* we want to create Overrideredirect window overlapping out window
901	with background type of Parent Relative and then grab it */
902	XSetWindowAttributes attr;
903	Window src;
904	bool success = false;
905		964
906	attr.background_pixmap = ParentRelative;	965	Pixmap recoded_root_pmap = root_pixmap;
907	attr.backing_store = Always;
908	attr.event_mask = ExposureMask;
909	attr.override_redirect = True;
910	src = XCreateWindow (dpy, root, sx, sy, window_width, window_height, 0,
911	CopyFromParent, CopyFromParent, CopyFromParent,
912	CWBackPixmap|CWBackingStore|CWOverrideRedirect|CWEventMask,
913	&attr);
914		966
915	if (src != None)	967	if (root_pixmap != None && root_depth != depth)
916	{	968	{
917	XEvent event;	969	#if XRENDER
918	int ev_count = 0;	970	if (bg_flags & BG_HAS_RENDER)
919	XGrabServer (dpy);
920	XMapRaised (dpy, src);
921	XSync (dpy, False);
922
923	/* XSync should get window where it's properly exposed,
924	* but to be on the safe side - let's check for the actual event to arrive : */
925	while (XCheckWindowEvent (dpy, src, ExposureMask, &event))
926	++ev_count;
927
928	if (ev_count > 0);
929	{
930	/* hooray! - we can grab the image! */
931	gc = XCreateGC (dpy, root, 0, NULL);
932	if (gc)
933	{
934	XCopyArea (dpy, src, tiled_root_pmap, gc, 0, 0, window_width, window_height, 0, 0);
935	success = true;
936	}
937	}
938
939	XDestroyWindow (dpy, src);
940	XUngrabServer (dpy);
941	//fprintf (stderr, "%s:%d: ev_count = %d\n", __FUNCTION__, __LINE__, ev_count);
942	}
943
944	if (!success)
945	{	971	{
946	XFreePixmap (dpy, tiled_root_pmap);	972	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
947	tiled_root_pmap = None;
948	}
949	else
950	result |= transpPmapTiled;
951	}
952	else
953	{
954	/* straightforward pixmap copy */
955	gcv.tile = root_pixmap;
956	gcv.fill_style = FillTiled;
957		973
958	while (sx < 0) sx += (int)root_width;	974	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
959	while (sy < 0) sy += (int)root_height;	975	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
960		976
961	gcv.ts_x_origin = -sx;
962	gcv.ts_y_origin = -sy;
963	gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
964
965	if (gc)
966	{
967	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
968	result |= transpPmapTiled;
969	}
970	}
971	TIMING_TEST_PRINT_RESULT (tp);
972
973	if (tiled_root_pmap != None)
974	{
975	if (!need_client_side_rendering ())
976	{
977	if ((flags & tintNeeded))
978	{
979	if (flags & tintWholesome)
980	{
981	/* In this case we can tint image server-side getting significant
982	* performance improvements, as we eliminate XImage transfer
983	*/
984	gcv.foreground = Pixel (tint);
985	gcv.function = GXand;
986	gcv.fill_style = FillSolid;
987	if (gc)
988	XChangeGC (dpy, gc, GCFillStyle | GCForeground | GCFunction, &gcv);
989	else
990	gc = XCreateGC (dpy, root, GCFillStyle | GCForeground | GCFunction, &gcv);
991	if (gc)
992	{
993	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
994	result |= transpPmapTinted;
995	}
996	}
997	else
998	{
999	# if XFT
1000	Picture back_pic = 0;
1001	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1002
1003	if (flags & tintSet)
1004	tint.get (c);
1005
1006	if (shade > 0 && shade < 100)
1007	{
1008	c.r = (c.r * shade) / 100;
1009	c.g = (c.g * shade) / 100;
1010	c.b = (c.b * shade) / 100;
1011	}
1012	else if (shade > 100 && shade < 200)
1013	{
1014	c.r = (c.r * (200 - shade)) / 100;
1015	c.g = (c.g * (200 - shade)) / 100;
1016	c.b = (c.b * (200 - shade)) / 100;
1017	}
1018
1019	XRenderPictFormat pf;
1020	pf.type = PictTypeDirect;
1021	pf.depth = 32;
1022	pf.direct.redMask = 0xff;
1023	pf.direct.greenMask = 0xff;
1024	pf.direct.blueMask = 0xff;
1025	pf.direct.alphaMask = 0xff;
1026
1027	XRenderPictFormat *solid_format = XRenderFindFormat (dpy,	977	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
1028	(PictFormatType|
1029	PictFormatDepth|
1030	PictFormatRedMask|
1031	PictFormatGreenMask|
1032	PictFormatBlueMask|
1033	PictFormatAlphaMask),
1034	&pf,
1035	0);
1036	XRenderPictFormat *root_format = XRenderFindVisualFormat (dpy, DefaultVisualOfScreen (ScreenOfDisplay (dpy, target->display->screen)));
1037	XRenderPictureAttributes pa ;
1038
1039	back_pic = XRenderCreatePicture (dpy, tiled_root_pmap, root_format, 0, &pa);	978	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
1040		979
1041	pa.repeat = True;	980	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
1042		981
1043	Pixmap overlay_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1044	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1045	XFreePixmap (dpy, overlay_pmap);
1046
1047	pa.component_alpha = True;
1048	Pixmap mask_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1049	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1050	XFreePixmap (dpy, mask_pmap);
1051
1052	if (mask_pic && overlay_pic && back_pic)
1053	{
1054	XRenderColor mask_c;
1055
1056	memset (&mask_c, (shade > 100) ? 0xFF : 0x0, sizeof (mask_c));
1057	mask_c.alpha = 0xffff;
1058	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1059
1060	mask_c.alpha = 0;
1061	mask_c.red = 0xffff - c.r;
1062	mask_c.green = 0xffff - c.g;
1063	mask_c.blue = 0xffff - c.b;
1064	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1065	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, window_width, window_height);
1066	result |= transpPmapTinted;
1067	}
1068
1069	XRenderFreePicture (dpy, mask_pic);	982	XRenderFreePicture (dpy, src);
1070	XRenderFreePicture (dpy, overlay_pic);
1071	XRenderFreePicture (dpy, back_pic);	983	XRenderFreePicture (dpy, dst);
1072	# if DO_TIMING_TEST
1073	XSync (dpy, False);
1074	# endif
1075	# endif
1076	}
1077	}
1078	} /* server side rendering completed */
1079
1080	if (pixmap)
1081	XFreePixmap (dpy, pixmap);
1082
1083	pixmap = tiled_root_pmap;
1084	pmap_width = window_width;
1085	pmap_height = window_height;
1086	pmap_depth = root_depth;
1087	}
1088
1089	if (gc)
1090	XFreeGC (dpy, gc);
1091
1092	TIMING_TEST_PRINT_RESULT (tp);
1093
1094	return result;
1095	}
1096
1097	bool
1098	bgPixmap_t::set_root_pixmap ()
1099	{
1100	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1101	if (new_root_pixmap == None)
1102	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1103
1104	if (new_root_pixmap != root_pixmap)
1105	{
1106	root_pixmap = new_root_pixmap;
1107	return true;
1108	}
1109
1110	return false;
1111	}
1112	# endif /* ENABLE_TRANSPARENCY */
1113
1114	# ifndef HAVE_AFTERIMAGE
1115	static void ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm);
1116	# endif
1117
1118	bool
1119	bgPixmap_t::render ()
1120	{
1121	unsigned long background_flags = 0;
1122
1123	if (target == NULL)
1124	return false;
1125
1126	TIMING_TEST_START (tp);
1127
1128	invalidate ();
1129	# ifdef ENABLE_TRANSPARENCY
1130	if (flags & isTransparent)
1131	{
1132	/* we need to re-generate transparency pixmap in that case ! */
1133	background_flags = make_transparency_pixmap ();
1134	if (background_flags == 0)
1135	return false;
1136	else if ((background_flags & transpTransformations) == (flags & transpTransformations)
1137	&& pmap_depth == target->depth)
1138	flags = flags & ~isInvalid;
1139	}
1140	# endif
1141
1142	XImage *result = NULL;
1143	# ifdef HAVE_AFTERIMAGE
1144	if (original_asim
1145	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1146	{
1147	target->init_asv ();
1148
1149	ASImage *background = NULL;
1150	ARGB32 as_tint = TINT_LEAVE_SAME;
1151	if (background_flags)
1152	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
1153
1154	# ifdef ENABLE_TRANSPARENCY
1155	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
1156	{
1157	ShadingInfo as_shade;
1158	as_shade.shading = (shade == 0) ? 100 : shade;
1159
1160	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1161	if (flags & tintSet)
1162	tint.get (c);
1163	as_shade.tintColor.red = c.r;
1164	as_shade.tintColor.green = c.g;
1165	as_shade.tintColor.blue = c.b;
1166
1167	as_tint = shading2tint32 (&as_shade);
1168	}
1169
1170	if (!(background_flags & transpPmapBlured) && (flags & blurNeeded) && background != NULL)
1171	{
1172	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
1173	(original_asim == NULL || tint == TINT_LEAVE_SAME)?ASA_XImage:ASA_ASImage,
1174	100, ASIMAGE_QUALITY_DEFAULT);
1175	if (tmp)
1176	{
1177	destroy_asimage (&background);
1178	background = tmp;
1179	}
1180	}
1181	# endif
1182
1183	if (render_asim (background, as_tint))
1184	flags = flags & ~isInvalid;
1185	if (background)
1186	destroy_asimage (&background);
1187	}
1188	else if (background_flags && pmap_depth != target->depth)
1189	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1190
1191	# elif !XFT /* our own client-side tinting */
1192
1193	/* ATTENTION: We ASSUME that XFT will let us do all the tinting necessary server-side.
1194	This may need to be changed in need_client_side_rendering() logic is altered !!! */
1195
1196	if (background_flags && (flags & isInvalid))
1197	{
1198	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1199
1200	if (result != NULL && !(background_flags & transpPmapTinted) && (flags & tintNeeded))
1201	{
1202	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1203	if (flags & tintSet)
1204	tint.get (c);
1205	ShadeXImage (target, result, shade, c.r, c.g, c.b);
1206	}
1207	}
1208	# endif /* HAVE_AFTERIMAGE */
1209
1210	if (result)
1211	{
1212	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1213
1214	if (gc)
1215	{
1216	if (/*pmap_depth != target->depth &&*/ pixmap != None)
1217	{
1218	XFreePixmap (target->dpy, pixmap);
1219	pixmap = None;
1220	}
1221
1222	if (pixmap == None)
1223	{
1224	pixmap = XCreatePixmap (target->dpy, target->vt, result->width, result->height, target->depth);
1225	pmap_width = result->width;
1226	pmap_height = result->height;
1227	pmap_depth = target->depth;
1228	}
1229
1230	if (pmap_depth != result->depth)
1231	{
1232	/* Bad Match error will ensue ! stupid X !!!! */
1233	if (result->depth == 24 && pmap_depth == 32)
1234	result->depth = 32;
1235	else if (result->depth == 32 && pmap_depth == 24)
1236	result->depth = 24;
1237	else
1238	{
1239	/* TODO: implement image recoding */
1240	}
1241	}
1242
1243	if (pmap_depth == result->depth)
1244	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1245
1246	XFreeGC (target->dpy, gc);
1247	flags = flags & ~isInvalid;
1248	}
1249
1250	XDestroyImage (result);
1251	}
1252
1253	if (flags & isInvalid)
1254	{
1255	if (pixmap != None)
1256	{
1257	XFreePixmap (target->dpy, pixmap);
1258	pixmap = None;
1259	}
1260	}
1261
1262	apply ();
1263
1264	XSync (target->dpy, False);
1265	valid_since = ev::now ();
1266
1267	TIMING_TEST_PRINT_RESULT (tp);
1268
1269	return true;
1270	}
1271
1272	bool
1273	bgPixmap_t::set_target (rxvt_term *new_target)
1274	{
1275	if (new_target)
1276	if (target != new_target)
1277	{
1278	target = new_target;
1279	# ifdef ENABLE_TRANSPARENCY
1280	root_depth = DefaultDepthOfScreen (ScreenOfDisplay (target->dpy, target->display->screen));
1281	# endif
1282	return true;
1283	}
1284
1285	return false;
1286	}
1287
1288	void
1289	bgPixmap_t::apply ()
1290	{
1291	if (target)
1292	{
1293	flags &= ~isVtOrigin;
1294
1295	if (pixmap != None)
1296	{
1297	/* set target's background to pixmap */
1298	# ifdef ENABLE_TRANSPARENCY
1299	if (flags & isTransparent)
1300	{
1301	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1302	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1303
1304	if (target->scrollBar.win)
1305	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1306	}
1307	else
1308	# endif
1309	{
1310	flags |= isVtOrigin;
1311	/* force old pixmap dereference in case it was transparent before :*/
1312	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1313	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1314	/* do we also need to set scrollbar's background here ? */
1315
1316	if (target->scrollBar.win)
1317	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1318	}
1319	}	984	}
1320	else	985	else
		986	#endif
		987	recoded_root_pmap = None;
		988	}
		989
		990	if (recoded_root_pmap == None)
		991	return 0;
		992
		993	if (bg_pixmap == None
		994	|| bg_pmap_width != window_width
		995	|| bg_pmap_height != window_height)
		996	{
		997	if (bg_pixmap)
		998	XFreePixmap (dpy, bg_pixmap);
		999	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
		1000	bg_pmap_width = window_width;
		1001	bg_pmap_height = window_height;
		1002	}
		1003
		1004	/* straightforward pixmap copy */
		1005	while (sx < 0) sx += root_pmap_width;
		1006	while (sy < 0) sy += root_pmap_height;
		1007
		1008	gcv.tile = recoded_root_pmap;
		1009	gcv.fill_style = FillTiled;
		1010	gcv.ts_x_origin = -sx;
		1011	gcv.ts_y_origin = -sy;
		1012	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		1013
		1014	if (gc)
		1015	{
		1016	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
		1017	ret = true;
		1018	bool need_blur = h_blurRadius && v_blurRadius;
		1019	bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
		1020
		1021	if (!(bg_flags & BG_CLIENT_RENDER))
		1022	{
		1023	if (need_blur)
1321	{	1024	{
1322	/* set target background to a pixel */	1025	if (blur_pixmap (bg_pixmap, window_width, window_height))
1323	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);	1026	need_blur = false;
1324	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);	1027	}
1325	/* do we also need to set scrollbar's background here ? */	1028	if (need_tint)
1326	if (target->scrollBar.win)	1029	{
1327	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);	1030	if (tint_pixmap (bg_pixmap, window_width, window_height))
		1031	need_tint = false;
		1032	}
		1033	if (need_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 (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;
1328	}	1097	}
		1098	}
1329		1099
1330	/* don't want Expose on the parent or vt. It is better to use	1100	scr_recolour (false);
1331	scr_touch or we get a great deal of flicker otherwise: */	1101	bg_flags |= BG_NEEDS_REFRESH;
1332	XClearWindow (target->dpy, target->parent[0]);
1333		1102
1334	if (target->scrollBar.state && target->scrollBar.win)	1103	bg_valid_since = ev::now ();
1335	{
1336	target->scrollBar.state = STATE_IDLE;
1337	target->scrollBar.show (0);
1338	}
1339		1104
1340	target->want_refresh = 1;	1105	return true;
1341	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)
1342	}	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
1343	}	1130	}
1344		1131
1345	#endif /* HAVE_BG_PIXMAP */	1132	#endif /* HAVE_BG_PIXMAP */
1346		1133
1347	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) && !XFT	1134	#ifdef ENABLE_TRANSPARENCY
1348	/* taken from aterm-0.4.2 */	1135	/* based on code from aterm-0.4.2 */
1349		1136
1350	typedef uint32_t RUINT32T;
1351
1352	static void	1137	static inline void
1353	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)
1354	{	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 (XImage *ximage)
		1151	{
		1152	unsigned int size_r, size_g, size_b;
1355	int sh_r, sh_g, sh_b;	1153	int sh_r, sh_g, sh_b;
1356	RUINT32T mask_r, mask_g, mask_b;	1154	uint32_t mask_r, mask_g, mask_b;
1357	RUINT32T *lookup, *lookup_r, *lookup_g, *lookup_b;	1155	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1358	unsigned int lower_lim_r, lower_lim_g, lower_lim_b;	1156	unsigned short low;
1359	unsigned int upper_lim_r, upper_lim_g, upper_lim_b;	1157	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1360	int i;
1361		1158
1362	Visual *visual = term->visual;
1363
1364	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return ;	1159	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1365
1366	if (shade == 0)
1367	shade = 100;
1368		1160
1369	/* for convenience */	1161	/* for convenience */
1370	mask_r = visual->red_mask;	1162	mask_r = visual->red_mask;
1371	mask_g = visual->green_mask;	1163	mask_g = visual->green_mask;
1372	mask_b = visual->blue_mask;	1164	mask_b = visual->blue_mask;
1373		1165
1374	/* boring lookup table pre-initialization */	1166	/* boring lookup table pre-initialization */
1375	switch (srcImage->bits_per_pixel) {	1167	sh_r = ecb_ctz32 (mask_r);
1376	case 15:	1168	sh_g = ecb_ctz32 (mask_g);
1377	if ((mask_r != 0x7c00) ||	1169	sh_b = ecb_ctz32 (mask_b);
1378	(mask_g != 0x03e0) ||	1170
1379	(mask_b != 0x001f))	1171	size_r = mask_r >> sh_r;
		1172	size_g = mask_g >> sh_g;
		1173	size_b = mask_b >> sh_b;
		1174
		1175	if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1380	return;	1176	return;
1381	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32));	1177
		1178	lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1382	lookup_r = lookup;	1179	lookup_r = lookup;
1383	lookup_g = lookup+32;	1180	lookup_g = lookup + size_r;
1384	lookup_b = lookup+32+32;	1181	lookup_b = lookup + size_r + size_g;
1385	sh_r = 10;	1182
1386	sh_g = 5;	1183	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1387	sh_b = 0;	1184
1388	break;	1185	if (bg_flags & BG_TINT_SET)
1389	case 16:	1186	tint.get (c);
1390	if ((mask_r != 0xf800) ||
1391	(mask_g != 0x07e0) ||
1392	(mask_b != 0x001f))
1393	return;
1394	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32));
1395	lookup_r = lookup;
1396	lookup_g = lookup+32;
1397	lookup_b = lookup+32+64;
1398	sh_r = 11;
1399	sh_g = 5;
1400	sh_b = 0;
1401	break;
1402	case 24:
1403	if ((mask_r != 0xff0000) ||
1404	(mask_g != 0x00ff00) ||
1405	(mask_b != 0x0000ff))
1406	return;
1407	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1408	lookup_r = lookup;
1409	lookup_g = lookup+256;
1410	lookup_b = lookup+256+256;
1411	sh_r = 16;
1412	sh_g = 8;
1413	sh_b = 0;
1414	break;
1415	case 32:
1416	if ((mask_r != 0xff0000) ||
1417	(mask_g != 0x00ff00) ||
1418	(mask_b != 0x0000ff))
1419	return;
1420	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1421	lookup_r = lookup;
1422	lookup_g = lookup+256;
1423	lookup_b = lookup+256+256;
1424	sh_r = 16;
1425	sh_g = 8;
1426	sh_b = 0;
1427	break;
1428	default:
1429	return; /* we do not support this color depth */
1430	}
1431		1187
1432	/* prepare limits for color transformation (each channel is handled separately) */	1188	/* prepare limits for color transformation (each channel is handled separately) */
1433	if (shade < 0) {	1189	if (shade > 100)
1434	shade = -shade;
1435	if (shade < 0) shade = 0;
1436	if (shade > 100) shade = 100;
1437
1438	lower_lim_r = 65535-rm;
1439	lower_lim_g = 65535-gm;
1440	lower_lim_b = 65535-bm;
1441
1442	lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100);
1443	lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100);
1444	lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100);
1445
1446	upper_lim_r = upper_lim_g = upper_lim_b = 65535;
1447	} else {
1448	if (shade < 0) shade = 0;
1449	if (shade > 100) shade = 100;
1450
1451	lower_lim_r = lower_lim_g = lower_lim_b = 0;
1452
1453	upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100);
1454	upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100);
1455	upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100);
1456	}
1457
1458	/* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */
1459	if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000 ))
1460	{	1190	{
1461	unsigned int tmp;	1191	c.r = c.r * (200 - shade) / 100;
		1192	c.g = c.g * (200 - shade) / 100;
		1193	c.b = c.b * (200 - shade) / 100;
1462		1194
1463	tmp = lower_lim_r;	1195	low = 0xffff * (shade - 100) / 100;
1464	lower_lim_r = lower_lim_b;
1465	lower_lim_b = tmp;
1466
1467	tmp = upper_lim_r;
1468	upper_lim_r = upper_lim_b;
1469	upper_lim_b = tmp;
1470	}	1196	}
		1197	else
		1198	{
		1199	c.r = c.r * shade / 100;
		1200	c.g = c.g * shade / 100;
		1201	c.b = c.b * shade / 100;
		1202
		1203	low = 0;
		1204	}
1471		1205
1472	/* fill our lookup tables */	1206	/* fill our lookup tables */
1473	for (i = 0; i <= mask_r>>sh_r; i++)	1207	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1474	{	1208	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1475	RUINT32T tmp;	1209	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1476	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r));
1477	tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r);
1478	lookup_r[i] = (tmp/65535)<<sh_r;
1479	}
1480	for (i = 0; i <= mask_g>>sh_g; i++)
1481	{
1482	RUINT32T tmp;
1483	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g));
1484	tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g);
1485	lookup_g[i] = (tmp/65535)<<sh_g;
1486	}
1487	for (i = 0; i <= mask_b>>sh_b; i++)
1488	{
1489	RUINT32T tmp;
1490	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b));
1491	tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b);
1492	lookup_b[i] = (tmp/65535)<<sh_b;
1493	}
1494		1210
1495	/* apply table to input image (replacing colors by newly calculated ones) */	1211	/* apply table to input image (replacing colors by newly calculated ones) */
1496	switch (srcImage->bits_per_pixel)	1212	if (ximage->bits_per_pixel == 32
		1213	&& ximage->byte_order == host_byte_order)
1497	{	1214	{
1498	case 15:	1215	char *line = ximage->data;
1499	{	1216
1500	unsigned short *p1, *pf, *p, *pl;	1217	for (int y = 0; y < ximage->height; y++)
1501	p1 = (unsigned short *) srcImage->data;
1502	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1503	while (p1 < pf)
1504	{	1218	{
1505	p = p1;	1219	uint32_t *p = (uint32_t *)line;
1506	pl = p1 + srcImage->width;	1220	for (int x = 0; x < ximage->width; x++)
1507	for (; p < pl; p++)
1508	{	1221	{
1509	*p = lookup_r[(*p & 0x7c00)>>10] |	1222	*p = lookup_r[(*p & mask_r) >> sh_r] |
1510	lookup_g[(*p & 0x03e0)>> 5] |	1223	lookup_g[(*p & mask_g) >> sh_g] |
1511	lookup_b[(*p & 0x001f)];	1224	lookup_b[(*p & mask_b) >> sh_b];
		1225	p++;
		1226	}
		1227	line += ximage->bytes_per_line;
1512	}	1228	}
1513	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1514	}	1229	}
1515	break;	1230	else
1516	}
1517	case 16:
1518	{
1519	unsigned short *p1, *pf, *p, *pl;
1520	p1 = (unsigned short *) srcImage->data;
1521	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1522	while (p1 < pf)
1523	{	1231	{
1524	p = p1;	1232	for (int y = 0; y < ximage->height; y++)
1525	pl = p1 + srcImage->width;	1233	for (int x = 0; x < ximage->width; x++)
1526	for (; p < pl; p++)
1527	{	1234	{
1528	*p = lookup_r[(*p & 0xf800)>>11] |	1235	unsigned long pixel = XGetPixel (ximage, x, y);
1529	lookup_g[(*p & 0x07e0)>> 5] |	1236	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1530	lookup_b[(*p & 0x001f)];	1237	lookup_g[(pixel & mask_g) >> sh_g] |
		1238	lookup_b[(pixel & mask_b) >> sh_b];
		1239	XPutPixel (ximage, x, y, pixel);
1531	}	1240	}
1532	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1533	}	1241	}
1534	break;
1535	}
1536	case 24:
1537	{
1538	unsigned char *p1, *pf, *p, *pl;
1539	p1 = (unsigned char *) srcImage->data;
1540	pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1541	while (p1 < pf)
1542	{
1543	p = p1;
1544	pl = p1 + srcImage->width * 3;
1545	for (; p < pl; p += 3)
1546	{
1547	p[0] = lookup_r[(p[0] & 0xff0000)>>16];
1548	p[1] = lookup_r[(p[1] & 0x00ff00)>> 8];
1549	p[2] = lookup_r[(p[2] & 0x0000ff)];
1550	}
1551	p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line);
1552	}
1553	break;
1554	}
1555	case 32:
1556	{
1557	RUINT32T *p1, *pf, *p, *pl;
1558	p1 = (RUINT32T *) srcImage->data;
1559	pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1560
1561	while (p1 < pf)
1562	{
1563	p = p1;
1564	pl = p1 + srcImage->width;
1565	for (; p < pl; p++)
1566	{
1567	*p = lookup_r[(*p & 0xff0000)>>16] |
1568	lookup_g[(*p & 0x00ff00)>> 8] |
1569	lookup_b[(*p & 0x0000ff)] |
1570	(*p & ~0xffffff);
1571	}
1572	p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line);
1573	}
1574	break;
1575	}
1576	}
1577		1242
1578	free (lookup);	1243	free (lookup);
1579	}	1244	}
1580	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1245	#endif /* ENABLE_TRANSPARENCY */

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