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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.52 by sf-exg, Wed Sep 1 11:59:44 2010 UTC vs.
Revision 1.204 by sf-exg, Tue Apr 10 15:19:22 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 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	have_image = false;
103	h_scale = v_scale = 0;
104	h_align = v_align = 0;
105	#endif
106	flags = 0;
107	pixmap = None;
108	valid_since = invalid_since = 0;
109	target = 0;
110	}
111		67
112	void	68	if (bg_pixmap)
113	bgPixmap_t::destroy ()
114	{
115	#ifdef HAVE_AFTERIMAGE
116	if (original_asim)
117	safe_asimage_destroy (original_asim);
118	#endif
119
120	if (pixmap && target)
121	XFreePixmap (target->dpy, pixmap);	69	XFreePixmap (dpy, bg_pixmap);
122	}	70	}
123		71
124	bool	72	bool
125	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 ()
126	{	88	{
127	# ifdef ENABLE_TRANSPARENCY	89	# ifdef ENABLE_TRANSPARENCY
128	if (flags & isTransparent)	90	if (bg_flags & BG_IS_TRANSPARENT)
129	return true;	91	return true;
130	# endif	92	# endif
131		93
132	# ifdef BG_IMAGE_FROM_FILE	94	# ifdef BG_IMAGE_FROM_FILE
133	if (have_image)	95	if (bg_flags & BG_IS_FROM_FILE)
134	{	96	{
135	if (h_scale != 0 || v_scale != 0	97	if (bg_flags & BG_IS_SIZE_SENSITIVE)
136	|| h_align != 0 || v_align != 0)
137	return true;	98	return true;
138	}	99	}
139	# endif	100	# endif
140		101
141	return false;	102	return false;
142	}	103	}
143		104
144	bool	105	bool
145	bgPixmap_t::window_position_sensitive ()	106	rxvt_term::bg_window_position_sensitive ()
146	{	107	{
147	# ifdef ENABLE_TRANSPARENCY	108	# ifdef ENABLE_TRANSPARENCY
148	if (flags & isTransparent)	109	if (bg_flags & BG_IS_TRANSPARENT)
149	return true;	110	return true;
150	# endif	111	# endif
151		112
152	# ifdef BG_IMAGE_FROM_FILE	113	# ifdef BG_IMAGE_FROM_FILE
153	if (have_image)	114	if (bg_flags & BG_IS_FROM_FILE)
154	{	115	{
155	if (h_align == rootAlign || v_align == rootAlign)	116	if (bg_flags & BG_ROOT_ALIGN)
156	return true;	117	return true;
157	}	118	}
158	# endif	119	# endif
159		120
160	return false;	121	return false;
161	};
162
163	bool bgPixmap_t::need_client_side_rendering ()
164	{
165	# ifdef HAVE_AFTERIMAGE
166	if (original_asim)
167	return true;
168	# endif
169	# ifdef ENABLE_TRANSPARENCY
170	if (flags & isTransparent)
171	{
172	# ifdef HAVE_AFTERIMAGE // can't blur without libAI anyways
173	if ((flags & blurNeeded) && !(flags & blurServerSide))
174	return true;
175	# endif
176	if ((flags & tintNeeded) && !(flags & tintServerSide))
177	return true;
178	}
179	# endif
180	return false;
181	}	122	}
182		123
183	# ifdef BG_IMAGE_FROM_FILE	124	# ifdef BG_IMAGE_FROM_FILE
184	static inline bool
185	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
186	{
187	if (geom_flags & flag)
188	{
189	if (new_value > 1000)
190	new_value = 1000;
191	if (new_value != scale)
192	{
193	scale = new_value;
194	return true;
195	}
196	}
197	return false;
198	}
199
200	static inline bool
201	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
202	{
203	if (geom_flags & flag)
204	{
205	if (new_value != bgPixmap_t::rootAlign)
206	{
207	if (new_value < -100)
208	new_value = -100;
209	else if (new_value > 200)
210	new_value = 200;
211	}
212	if (new_value != align)
213	{
214	align = new_value;
215	return true;
216	}
217	}
218	return false;
219	}
220
221	static inline int	125	static inline int
222	make_align_position (int align, int window_size, int image_size)	126	make_align_position (int align, int window_size, int image_size)
223	{	127	{
224	int diff = window_size - image_size;	128	int diff = window_size - image_size;
225	int smaller = MIN (image_size,window_size);	129	int smaller = min (image_size, window_size);
226		130
227	if (align >= 0 && align <= 50)	131	if (align >= 0 && align <= 100)
228	return diff * align / 100;	132	return diff * align / 100;
229	else if (align > 50 && align <= 100)
230	return window_size - image_size - diff * (100 - align) / 100;
231	else if (align > 100 && align <= 200 )	133	else if (align > 100 && align <= 200)
232	return ((align - 100) * smaller / 100) + window_size - smaller;	134	return (align - 100) * smaller / 100 + window_size - smaller;
233	else if (align > -100 && align < 0)	135	else if (align >= -100 && align < 0)
234	return ((align + 100) * smaller / 100) - image_size;	136	return (align + 100) * smaller / 100 - image_size;
235	return 0;	137	return 0;
236	}	138	}
237		139
238	static inline int	140	static inline int
239	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	141	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
240	{	142	{
241	int src_pos = 0;	143	int src_pos = 0;
242	dst_pos = 0;	144	dst_pos = pos;
243	dst_size = size;	145	dst_size = size;
244	if (pos < 0 && size > target_size)	146	if (pos < 0)
245	{	147	{
246	src_pos = -pos;	148	src_pos = -pos;
		149	dst_pos = 0;
247	dst_size += pos;	150	dst_size += pos;
248	}	151	}
249	else if (pos > 0)
250	dst_pos = pos;
251		152
252	if (dst_pos + dst_size > target_size)
253	dst_size = target_size - dst_pos;	153	min_it (dst_size, target_size - dst_pos);
254	return src_pos;	154	return src_pos;
255	}	155	}
256		156
257	bool	157	bool
258	bgPixmap_t::set_geometry (const char *geom)	158	rxvt_term::bg_set_geometry (const char *geom, bool update)
259	{	159	{
		160	bool changed = false;
260	int geom_flags = 0, changed = 0;	161	int geom_flags = 0;
261	int x = 0, y = 0;	162	int x = h_align;
		163	int y = v_align;
262	unsigned int w = 0, h = 0;	164	unsigned int w = h_scale;
263	unsigned int n;	165	unsigned int h = v_scale;
264	unsigned long new_flags = (flags & (~geometryFlags));	166	unsigned long new_flags = 0;
265	const char *p;
266	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
267		167
268	if (geom == NULL)	168	if (geom == NULL)
269	return false;	169	return false;
270		170
271	char str[MAXLEN_GEOM];	171	if (geom[0])
272
273	while (isspace(*geom)) ++geom;
274	if ((p = strchr (geom, ';')) == NULL)
275	p = strchr (geom, '\0');
276
277	n = (p - geom);
278	if (n < MAXLEN_GEOM)
279	{	172	{
280	char *ops;	173	char **arr = rxvt_strsplit (':', geom);
281	new_flags |= geometrySet;
282		174
283	memcpy (str, geom, n);	175	for (int i = 0; arr[i]; i++)
284	str[n] = '\0';
285	if (str[0] == ':')
286	ops = &str[0];
287	else if (str[0] != 'x' && str[0] != 'X' && isalpha(str[0]))
288	ops = &str[0];
289	else
290	{
291	char *tmp;
292	ops = strchr (str, ':');
293	if (ops != NULL)
294	{	176	{
295	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);	177	if (!strcasecmp (arr[i], "style=tiled"))
296	*(++tmp) = '\0';
297	if (ops == tmp) ++ops;
298	}	178	{
		179	new_flags = BG_TILE;
		180	w = h = noScale;
		181	x = y = 0;
		182	geom_flags = WidthValue|HeightValue|XValue|YValue;
		183	}
		184	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
		185	{
		186	new_flags = BG_KEEP_ASPECT;
		187	w = h = windowScale;
		188	x = y = centerAlign;
		189	geom_flags = WidthValue|HeightValue|XValue|YValue;
		190	}
		191	else if (!strcasecmp (arr[i], "style=stretched"))
		192	{
		193	new_flags = 0;
		194	w = h = windowScale;
		195	geom_flags = WidthValue|HeightValue;
		196	}
		197	else if (!strcasecmp (arr[i], "style=centered"))
		198	{
		199	new_flags = 0;
		200	w = h = noScale;
		201	x = y = centerAlign;
		202	geom_flags = WidthValue|HeightValue|XValue|YValue;
		203	}
		204	else if (!strcasecmp (arr[i], "style=root-tiled"))
		205	{
		206	new_flags = BG_TILE|BG_ROOT_ALIGN;
		207	w = h = noScale;
		208	geom_flags = WidthValue|HeightValue;
		209	}
		210	else if (!strcasecmp (arr[i], "op=tile"))
		211	new_flags |= BG_TILE;
		212	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		213	new_flags |= BG_KEEP_ASPECT;
		214	else if (!strcasecmp (arr[i], "op=root-align"))
		215	new_flags |= BG_ROOT_ALIGN;
		216
		217	// deprecated
		218	else if (!strcasecmp (arr[i], "tile"))
		219	{
		220	new_flags |= BG_TILE;
		221	w = h = noScale;
		222	geom_flags |= WidthValue|HeightValue;
		223	}
		224	else if (!strcasecmp (arr[i], "propscale"))
		225	{
		226	new_flags |= BG_KEEP_ASPECT;
		227	w = h = windowScale;
		228	geom_flags |= WidthValue|HeightValue;
		229	}
		230	else if (!strcasecmp (arr[i], "hscale"))
		231	{
		232	new_flags |= BG_TILE;
		233	w = windowScale;
		234	h = noScale;
		235	geom_flags |= WidthValue|HeightValue;
		236	}
		237	else if (!strcasecmp (arr[i], "vscale"))
		238	{
		239	new_flags |= BG_TILE;
		240	h = windowScale;
		241	w = noScale;
		242	geom_flags |= WidthValue|HeightValue;
		243	}
		244	else if (!strcasecmp (arr[i], "scale"))
		245	{
		246	w = h = windowScale;
		247	geom_flags |= WidthValue|HeightValue;
		248	}
		249	else if (!strcasecmp (arr[i], "auto"))
		250	{
		251	w = h = windowScale;
		252	x = y = centerAlign;
		253	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		254	}
		255	else if (!strcasecmp (arr[i], "root"))
		256	{
		257	new_flags |= BG_TILE|BG_ROOT_ALIGN;
		258	w = h = noScale;
		259	geom_flags |= WidthValue|HeightValue;
		260	}
		261
		262	else
		263	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
		264	} /* done parsing ops */
		265
		266	rxvt_free_strsplit (arr);
		267	}
		268
		269	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;
		270
		271	if (!update)
		272	{
		273	if (!(geom_flags & XValue))
		274	x = y = defaultAlign;
		275	else if (!(geom_flags & YValue))
		276	y = x;
		277
		278	if (!(geom_flags & (WidthValue|HeightValue)))
		279	w = h = defaultScale;
		280	else if (!(geom_flags & HeightValue))
		281	h = w;
		282	else if (!(geom_flags & WidthValue))
		283	w = h;
		284	}
		285
		286	min_it (w, 1000);
		287	min_it (h, 1000);
		288	clamp_it (x, -100, 200);
		289	clamp_it (y, -100, 200);
		290
		291	if (bg_flags != new_flags
		292	|| h_scale != w
		293	|| v_scale != h
		294	|| h_align != x
		295	|| v_align != y)
		296	{
		297	bg_flags = new_flags;
		298	h_scale = w;
		299	v_scale = h;
		300	h_align = x;
		301	v_align = y;
		302	changed = true;
		303	}
		304
		305	return changed;
		306	}
		307
		308	void
		309	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)
		310	{
		311	int target_width = szHint.width;
		312	int target_height = szHint.height;
		313
		314	w = h_scale * target_width / 100;
		315	h = v_scale * target_height / 100;
		316
		317	if (bg_flags & BG_KEEP_ASPECT)
		318	{
		319	float scale = (float)w / image_width;
		320	min_it (scale, (float)h / image_height);
		321	w = image_width * scale + 0.5;
		322	h = image_height * scale + 0.5;
		323	}
		324
		325	if (!w) w = image_width;
		326	if (!h) h = image_height;
		327
		328	if (bg_flags & BG_ROOT_ALIGN)
		329	{
		330	x = -target_x;
		331	y = -target_y;
		332	}
		333	else
		334	{
		335	x = make_align_position (h_align, target_width, w);
		336	y = make_align_position (v_align, target_height, h);
		337	}
		338
		339	if (!(bg_flags & BG_TILE)
		340	|| h_scale || v_scale
		341	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
		342	|| image_width > target_width || image_height > target_height)
		343	bg_flags |= BG_IS_SIZE_SENSITIVE;
		344	else
		345	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
		346	}
		347
		348	# ifdef HAVE_PIXBUF
		349	bool
		350	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
		351	int src_x, int src_y, int dst_x, int dst_y,
		352	unsigned int width, unsigned int height)
		353	{
		354	XImage *ximage;
		355	char *data, *line;
		356	int bytes_per_pixel;
		357	int width_r, width_g, width_b;
		358	int sh_r, sh_g, sh_b;
		359	int rowstride;
		360	int channels;
		361	unsigned char *row;
		362
		363	if (visual->c_class != TrueColor)
		364	return false;
		365
		366	if (depth == 24 || depth == 32)
		367	bytes_per_pixel = 4;
		368	else if (depth == 15 || depth == 16)
		369	bytes_per_pixel = 2;
		370	else
		371	return false;
		372
		373	width_r = ecb_popcount32 (visual->red_mask);
		374	width_g = ecb_popcount32 (visual->green_mask);
		375	width_b = ecb_popcount32 (visual->blue_mask);
		376
		377	if (width_r > 8 || width_g > 8 || width_b > 8)
		378	return false;
		379
		380	sh_r = ecb_ctz32 (visual->red_mask);
		381	sh_g = ecb_ctz32 (visual->green_mask);
		382	sh_b = ecb_ctz32 (visual->blue_mask);
		383
		384	if (width > INT_MAX / height / bytes_per_pixel)
		385	return false;
		386
		387	data = (char *)malloc (width * height * bytes_per_pixel);
		388	if (!data)
		389	return false;
		390
		391	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
		392	width, height, bytes_per_pixel * 8, 0);
		393	if (!ximage)
		394	{
		395	free (data);
		396	return false;
		397	}
		398
		399	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		400
		401	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
		402	channels = gdk_pixbuf_get_n_channels (pixbuf);
		403	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
		404	line = data;
		405
		406	for (int y = 0; y < height; y++)
		407	{
		408	for (int x = 0; x < width; x++)
		409	{
		410	unsigned char *pixel = row + x * channels;
		411	uint32_t value;
		412
		413	value = ((pixel[0] >> (8 - width_r)) << sh_r)
		414	| ((pixel[1] >> (8 - width_g)) << sh_g)
		415	| ((pixel[2] >> (8 - width_b)) << sh_b);
		416
		417	if (bytes_per_pixel == 4)
		418	((uint32_t *)line)[x] = value;
		419	else
		420	((uint16_t *)line)[x] = value;
299	}	421	}
300		422
301	if (ops > str || ops == NULL)	423	row += rowstride;
302	{	424	line += ximage->bytes_per_line;
303	/* we have geometry string - let's handle it prior to applying ops */
304	geom_flags = XParseGeometry (str, &x, &y, &w, &h);
305
306	if ((geom_flags & XValue) && !(geom_flags & YValue))
307	{
308	y = x;
309	geom_flags |= YValue;
310	}
311
312	if (flags & geometrySet)
313	{
314	/* new geometry is an adjustment to the old one ! */
315	if ((geom_flags & WidthValue) && (geom_flags & HeightValue))
316	{
317	if (w == 0 && h != 0)
318	{
319	w = h_scale;
320	h = (v_scale * h) / 100;
321	}
322	else if (h == 0 && w != 0)
323	{
324	w = (h_scale * w) / 100;
325	h = v_scale;
326	}
327	}
328	if (geom_flags & XValue)
329	{
330	if (str[0] != '=')
331	{
332	y += v_align;
333	x += h_align;
334	}
335	}
336	}
337	else /* setting up geometry from scratch */
338	{
339	if (!(geom_flags & XValue))
340	{
341	/* use default geometry - centered */
342	x = y = defaultAlign;
343	}
344	else if (!(geom_flags & YValue))
345	y = x;
346
347	if ((geom_flags & (WidthValue|HeightValue)) == 0)
348	{
349	/* use default geometry - scaled */
350	w = h = defaultScale;
351	}
352	else if (geom_flags & WidthValue)
353	{
354	if (!(geom_flags & HeightValue))
355	h = w;
356	}
357	else
358	w = h;
359	}
360	} /* done parsing geometry string */
361	else if (!(flags & geometrySet))
362	{
363	/* default geometry - scaled and centered */
364	x = y = defaultAlign;
365	w = h = defaultScale;
366	}
367
368	if (!(flags & geometrySet))
369	geom_flags |= WidthValue|HeightValue|XValue|YValue;
370
371	if (ops)
372	{
373	while (*ops)
374	{
375	while (*ops == ':' || isspace(*ops)) ++ops;
376
377	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)
378	if (CHECK_GEOM_OPS ("tile"))
379	{
380	w = h = noScale;
381	geom_flags |= WidthValue|HeightValue;
382	}
383	else if (CHECK_GEOM_OPS ("propscale"))
384	{
385	if (w == 0 && h == 0)
386	{
387	w = windowScale;
388	geom_flags |= WidthValue;
389	}
390	new_flags |= propScale;
391	}
392	else if (CHECK_GEOM_OPS ("hscale"))
393	{
394	if (w == 0) w = windowScale;
395
396	h = noScale;
397	geom_flags |= WidthValue|HeightValue;
398	}
399	else if (CHECK_GEOM_OPS ("vscale"))
400	{
401	if (h == 0) h = windowScale;
402
403	w = noScale;
404	geom_flags |= WidthValue|HeightValue;
405	}
406	else if (CHECK_GEOM_OPS ("scale"))
407	{
408	if (h == 0) h = windowScale;
409	if (w == 0) w = windowScale;
410
411	geom_flags |= WidthValue|HeightValue;
412	}
413	else if (CHECK_GEOM_OPS ("auto"))
414	{
415	w = h = windowScale;
416	x = y = centerAlign;
417	geom_flags |= WidthValue|HeightValue|XValue|YValue;
418	}
419	else if (CHECK_GEOM_OPS ("root"))
420	{
421	w = h = noScale;
422	x = y = rootAlign;
423	geom_flags |= WidthValue|HeightValue|XValue|YValue;
424	}
425	# undef CHECK_GEOM_OPS
426
427	while (*ops != ':' && *ops != '\0') ++ops;
428	} /* done parsing ops */
429	}
430
431	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) ++changed;
432	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) ++changed;
433	if (check_set_align_value (geom_flags, XValue, h_align, x)) ++changed;
434	if (check_set_align_value (geom_flags, YValue, v_align, y)) ++changed;
435	}
436
437	if (new_flags != flags)
438	{	425	}
439	flags = new_flags;
440	changed++;
441	}
442		426
443	//fprintf (stderr, "flags = %lX, scale = %ux%u, align=%+d%+d\n",	427	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
444	// flags, h_scale, v_scale, h_align, v_align);	428	XDestroyImage (ximage);
445	return (changed > 0);	429	return true;
446	}	430	}
447		431
448	# ifdef HAVE_AFTERIMAGE
449	bool	432	bool
450	bgPixmap_t::render_image (unsigned long background_flags)	433	rxvt_term::render_image (bool transparent)
451	{	434	{
452	if (target == NULL)	435	if (!pixbuf)
453	return false;	436	return false;
454		437
455	target->init_asv ();	438	if (transparent
		439	&& !(bg_flags & BG_HAS_RENDER))
		440	return false;
456		441
457	ASImage *background = NULL;	442	GdkPixbuf *result;
458	ARGB32 background_tint = TINT_LEAVE_SAME;
459		443
460	# ifdef ENABLE_TRANSPARENCY	444	int image_width = gdk_pixbuf_get_width (pixbuf);
461	if (background_flags)	445	int image_height = gdk_pixbuf_get_height (pixbuf);
462	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
463		446
464	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
465	{
466	ShadingInfo as_shade;
467	as_shade.shading = (shade == 0) ? 100 : shade;
468
469	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
470	if (flags & tintSet)
471	tint.get (c);
472	as_shade.tintColor.red = c.r;
473	as_shade.tintColor.green = c.g;
474	as_shade.tintColor.blue = c.b;
475
476	background_tint = shading2tint32 (&as_shade);
477	}
478
479	if (!(background_flags & transpPmapBlured) && (flags & blurNeeded) && background != NULL)
480	{
481	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
482	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
483	100, ASIMAGE_QUALITY_DEFAULT);
484	if (tmp)
485	{
486	destroy_asimage (&background);
487	background = tmp;
488	}
489	}
490	# endif
491
492	ASImage *result = 0;
493
494	int target_width = target->szHint.width;	447	int target_width = szHint.width;
495	int target_height = target->szHint.height;	448	int target_height = szHint.height;
496	int new_pmap_width = target_width;	449	int new_pmap_width = target_width;
497	int new_pmap_height = target_height;	450	int new_pmap_height = target_height;
498		451
499	int x = 0;	452	int x = 0;
500	int y = 0;	453	int y = 0;
501	int w = h_scale * target_width / 100;	454	int w = 0;
502	int h = v_scale * target_height / 100;	455	int h = 0;
503		456
504	TIMING_TEST_START (asim);	457	get_image_geometry (image_width, image_height, w, h, x, y);
505		458
506	if (original_asim)	459	if (!(bg_flags & BG_ROOT_ALIGN)
		460	&& (x >= target_width
		461	|| y >= target_height
		462	|| x + w <= 0
		463	|| y + h <= 0))
		464	return false;
		465
		466	result = pixbuf;
		467
		468	if (w != image_width
		469	|| h != image_height)
		470	{
		471	result = gdk_pixbuf_scale_simple (pixbuf,
		472	w, h,
		473	GDK_INTERP_BILINEAR);
507	{	474	}
508	if (h_align == rootAlign || v_align == rootAlign)	475
		476	if (!result)
		477	return false;
		478
		479	bool ret = false;
		480
		481	XGCValues gcv;
		482	GC gc;
		483	Pixmap root_pmap;
		484
		485	image_width = gdk_pixbuf_get_width (result);
		486	image_height = gdk_pixbuf_get_height (result);
		487
		488	if (transparent)
		489	{
		490	root_pmap = bg_pixmap;
		491	bg_pixmap = None;
		492	}
		493	else
		494	{
		495	if (bg_flags & BG_TILE)
509	{	496	{
510	target->get_window_origin (x, y);	497	new_pmap_width = min (image_width, target_width);
511	x = -x;	498	new_pmap_height = min (image_height, target_height);
512	y = -y;
513	}	499	}
514
515	if (h_align != rootAlign)
516	x = make_align_position (h_align, target_width, w > 0 ? w : (int)original_asim->width);
517
518	if (v_align != rootAlign)
519	y = make_align_position (v_align, target_height, h > 0 ? h : (int)original_asim->height);
520	}
521
522	if (!original_asim
523	|| x >= target_width
524	|| y >= target_height
525	|| (w > 0 && x + w <= 0)
526	|| (h > 0 && y + h <= 0))
527	{	500	}
528	if (background)
529	{
530	new_pmap_width = background->width;
531	new_pmap_height = background->height;
532	result = background;
533		501
534	if (background_tint != TINT_LEAVE_SAME)	502	if (bg_pixmap == None
		503	|| bg_pmap_width != new_pmap_width
		504	|| bg_pmap_height != new_pmap_height)
		505	{
		506	if (bg_pixmap)
		507	XFreePixmap (dpy, bg_pixmap);
		508	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
		509	bg_pmap_width = new_pmap_width;
		510	bg_pmap_height = new_pmap_height;
		511	}
		512
		513	gcv.foreground = pix_colors[Color_bg];
		514	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
		515
		516	if (gc)
		517	{
		518	if (bg_flags & BG_TILE)
535	{	519	{
536	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	520	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
537	target_width, target_height, background_tint,	521	pixbuf_to_pixmap (result, tile, gc,
538	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);	522	0, 0,
539	if (tmp)	523	0, 0,
540	result = tmp;	524	image_width, image_height);
541	}	525
		526	gcv.tile = tile;
		527	gcv.fill_style = FillTiled;
		528	gcv.ts_x_origin = x;
		529	gcv.ts_y_origin = y;
		530	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		531
		532	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		533	XFreePixmap (dpy, tile);
542	}	534	}
543	else	535	else
544	new_pmap_width = new_pmap_height = 0;
545	}
546	else
547	{
548	result = original_asim;
549
550	if ((w > 0 && w != original_asim->width)
551	|| (h > 0 && h != original_asim->height))
552	{
553	result = scale_asimage (target->asv, original_asim,
554	w > 0 ? w : original_asim->width,
555	h > 0 ? h : original_asim->height,
556	background ? ASA_ASImage : ASA_XImage,
557	100, ASIMAGE_QUALITY_DEFAULT);
558	}	536	{
559
560	if (background == NULL)
561	{
562	/* if tiling - pixmap has to be sized exactly as the image,
563	but there is no need to make it bigger than the window! */
564	if (h_scale == 0)
565	new_pmap_width = min (result->width, target_width);
566	if (v_scale == 0)
567	new_pmap_height = min (result->height, target_height);
568	/* we also need to tile our image in one or both directions */
569	if (h_scale == 0 || v_scale == 0)
570	{
571	ASImage *tmp = tile_asimage (target->asv, result,
572	(h_scale > 0) ? 0 : (int)result->width - x,
573	(v_scale > 0) ? 0 : (int)result->height - y,
574	new_pmap_width,
575	new_pmap_height,
576	TINT_LEAVE_SAME, ASA_XImage,
577	100, ASIMAGE_QUALITY_DEFAULT);
578	if (tmp)
579	{
580	if (result != original_asim)
581	destroy_asimage (&result);
582
583	result = tmp;
584	}
585	}
586	}
587	else
588	{
589	/* if blending background and image - pixmap has to be sized same as target window */
590	ASImageLayer *layers = create_image_layers (2);
591
592	layers[0].im = background;
593	layers[0].clip_width = target_width;
594	layers[0].clip_height = target_height;
595	layers[0].tint = background_tint;
596	layers[1].im = result;
597
598	if (w <= 0)
599	{
600	/* tile horizontally */
601	while (x > 0) x -= (int)result->width;
602	layers[1].dst_x = x;
603	layers[1].clip_width = result->width+target_width;
604	}
605	else
606	{
607	/* clip horizontally */
608	layers[1].dst_x = x;
609	layers[1].clip_width = result->width;
610	}
611
612	if (h <= 0)
613	{
614	while (y > 0) y -= (int)result->height;
615	layers[1].dst_y = y;
616	layers[1].clip_height = result->height + target_height;
617	}
618	else
619	{
620	layers[1].dst_y = y;
621	layers[1].clip_height = result->height;
622	}
623
624	if (target->rs[Rs_blendtype])
625	{
626	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
627	if (layers[1].merge_scanlines == NULL)
628	layers[1].merge_scanlines = alphablend_scanlines;
629	}
630
631	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
632	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
633
634	if (tmp)
635	{
636	if (result != original_asim)
637	destroy_asimage (&result);
638
639	result = tmp;
640	}
641
642	free (layers);
643	}
644	}
645	TIMING_TEST_PRINT_RESULT (asim);
646
647	bool ret = false;
648
649	if (result)
650	{
651	XGCValues gcv;
652	GC gc;
653
654	if (pixmap)
655	{
656	if (pmap_width != new_pmap_width
657	|| pmap_height != new_pmap_height
658	|| pmap_depth != target->depth)
659	{
660	XFreePixmap (target->dpy, pixmap);
661	pixmap = None;
662	}
663	}
664
665	/* create Pixmap */
666	if (pixmap == None)
667	{
668	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
669	pmap_width = new_pmap_width;
670	pmap_height = new_pmap_height;
671	pmap_depth = target->depth;
672	}
673	/* fill with background color (if result's not completely overlapping it) */
674	gcv.foreground = target->pix_colors[Color_bg];
675	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
676
677	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;	537	int src_x, src_y, dst_x, dst_y;
678	int dst_width = result->width, dst_height = result->height;	538	int dst_width, dst_height;
679	if (background == NULL)	539
680	{
681	if (h_scale > 0) src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );	540	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
682	if (v_scale > 0) src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);	541	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
683		542
684	if (dst_x > 0 || dst_y > 0	543	if (dst_x > 0 || dst_y > 0
685	|| dst_x + dst_width < new_pmap_width	544	|| dst_x + dst_width < new_pmap_width
686	|| dst_y + dst_height < new_pmap_height)	545	|| dst_y + dst_height < new_pmap_height)
687	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	546	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		547
		548	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
		549	pixbuf_to_pixmap (result, bg_pixmap, gc,
		550	src_x, src_y,
		551	dst_x, dst_y,
		552	dst_width, dst_height);
688	}	553	}
689		554
690	/* put result on pixmap */	555	#if XRENDER
691	if (dst_x < new_pmap_width && dst_y < new_pmap_height)	556	if (transparent)
692	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);	557	{
		558	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
693		559
694	if (result != background && result != original_asim)	560	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);
695	destroy_asimage (&result);
696		561
		562	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
		563
		564	Picture mask = create_xrender_mask (dpy, vt, False, False);
		565
		566	XRenderColor mask_c;
		567
		568	mask_c.alpha = 0x8000;
		569	mask_c.red =
		570	mask_c.green =
		571	mask_c.blue = 0;
		572	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		573
		574	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
		575
		576	XRenderFreePicture (dpy, src);
		577	XRenderFreePicture (dpy, dst);
		578	XRenderFreePicture (dpy, mask);
		579	}
		580	#endif
		581
697	XFreeGC (target->dpy, gc);	582	XFreeGC (dpy, gc);
698	TIMING_TEST_PRINT_RESULT (asim);
699		583
700	ret = true;	584	ret = true;
701	}	585	}
702		586
703	if (background)	587	if (result != pixbuf)
704	destroy_asimage (&background);	588	g_object_unref (result);
		589
		590	if (transparent)
		591	XFreePixmap (dpy, root_pmap);
705		592
706	return ret;	593	return ret;
707	}	594	}
708	# endif /* HAVE_AFTERIMAGE */	595	# endif /* HAVE_PIXBUF */
709		596
710	bool	597	bool
711	bgPixmap_t::set_file (const char *file)	598	rxvt_term::bg_set_file (const char *file)
712	{	599	{
713	assert (file);	600	if (!file || !*file)
		601	return false;
714		602
715	if (*file)	603	bool ret = false;
716	{
717	if (const char *p = strchr (file, ';'))	604	const char *p = strchr (file, ';');
718	{	605
		606	if (p)
		607	{
719	size_t len = p - file;	608	size_t len = p - file;
720	char *f = rxvt_temp_buf<char> (len + 1);	609	char *f = rxvt_temp_buf<char> (len + 1);
721	memcpy (f, file, len);	610	memcpy (f, file, len);
722	f[len] = '\0';	611	f[len] = '\0';
723	file = f;	612	file = f;
724	}	613	}
725		614
726	# ifdef HAVE_AFTERIMAGE	615	# ifdef HAVE_PIXBUF
727	if (!target->asimman)	616	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
728	target->asimman = create_generic_imageman (target->rs[Rs_path]);	617	if (image)
729	original_asim = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	618	{
730	if (original_asim)	619	if (pixbuf)
731	have_image = true;	620	g_object_unref (pixbuf);
732	return have_image;	621	pixbuf = image;
		622	bg_flags |= BG_IS_FROM_FILE;
		623	ret = true;
		624	}
733	# endif	625	# endif
		626
		627	if (ret)
		628	{
		629	if (p)
		630	bg_set_geometry (p + 1);
		631	else
		632	bg_set_default_geometry ();
		633	}
		634
		635	return ret;
		636	}
		637
		638	# endif /* BG_IMAGE_FROM_FILE */
		639
		640	# ifdef ENABLE_TRANSPARENCY
		641	bool
		642	rxvt_term::bg_set_transparent ()
		643	{
		644	if (!(bg_flags & BG_IS_TRANSPARENT))
		645	{
		646	bg_flags |= BG_IS_TRANSPARENT;
		647	return true;
734	}	648	}
735		649
736	return false;	650	return false;
737	}	651	}
738		652
739	# endif /* BG_IMAGE_FROM_FILE */
740
741	# ifdef ENABLE_TRANSPARENCY
742	bool	653	bool
743	bgPixmap_t::set_transparent ()	654	rxvt_term::bg_set_blur (const char *geom)
744	{	655	{
745	if (!(flags & isTransparent))	656	bool changed = false;
746	{
747	flags |= isTransparent;
748	return true;
749	}
750
751	return false;
752	}
753
754	bool
755	bgPixmap_t::set_blur_radius (const char *geom)
756	{
757	int changed = 0;
758	unsigned int hr, vr;	657	unsigned int hr, vr;
759	int junk;	658	int junk;
760	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	659	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
761		660
762	if (!(geom_flags & WidthValue))	661	if (!(geom_flags & WidthValue))
763	hr = 1;	662	hr = 1;
764	if (!(geom_flags & HeightValue))	663	if (!(geom_flags & HeightValue))
765	vr = hr;	664	vr = hr;
766		665
		666	min_it (hr, 128);
		667	min_it (vr, 128);
		668
767	if (h_blurRadius != hr)	669	if (h_blurRadius != hr)
768	{	670	{
769	++changed;	671	changed = true;
770	h_blurRadius = hr;	672	h_blurRadius = hr;
771	}	673	}
772		674
773	if (v_blurRadius != vr)	675	if (v_blurRadius != vr)
774	{	676	{
775	++changed;	677	changed = true;
776	v_blurRadius = vr;	678	v_blurRadius = vr;
777	}	679	}
778		680
779	if (v_blurRadius == 0 && h_blurRadius == 0)	681	if (h_blurRadius && v_blurRadius)
780	flags &= ~blurNeeded;	682	bg_flags |= BG_NEEDS_BLUR;
781	else	683	else
782	flags |= blurNeeded;	684	bg_flags &= ~BG_NEEDS_BLUR;
783		685
784	return (changed > 0);	686	return changed;
785	}	687	}
786		688
787	static inline unsigned long	689	void
788	compute_tint_shade_flags (rxvt_color *tint, int shade)	690	rxvt_term::set_tint_shade_flags ()
789	{	691	{
790	unsigned long flags = 0;	692	if (shade != 100 || (bg_flags & BG_TINT_SET))
791	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	693	bg_flags |= BG_NEEDS_TINT;
792	bool has_shade = (shade > 0 && shade < 100) || (shade > 100 && shade < 200);	694	else
		695	bg_flags &= ~BG_NEEDS_TINT;
		696	}
793		697
794	if (tint)	698	bool
		699	rxvt_term::bg_set_tint (rxvt_color &new_tint)
		700	{
		701	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
795	{	702	{
		703	tint = new_tint;
		704	bg_flags |= BG_TINT_SET;
		705
		706	rgba c;
796	tint->get (c);	707	tint.get (c);
797	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)	708	if ((c.r <= 0x00ff || c.r >= 0xff00)
798	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)	709	&& (c.g <= 0x00ff || c.g >= 0xff00)
799	&& IS_COMPONENT_WHOLESOME (c.g)	710	&& (c.b <= 0x00ff || c.b >= 0xff00))
800	&& IS_COMPONENT_WHOLESOME (c.b))	711	bg_flags |= BG_TINT_BITAND;
801	flags |= bgPixmap_t::tintWholesome;	712	else
802	# undef IS_COMPONENT_WHOLESOME	713	bg_flags &= ~BG_TINT_BITAND;
803	}
804		714
805	if (has_shade)	715	set_tint_shade_flags ();
806	flags |= bgPixmap_t::tintNeeded;	716	return true;
807	else if (tint)
808	{	717	}
809	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)	718
810	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))	719	return false;
		720	}
		721
		722	bool
		723	rxvt_term::bg_set_shade (const char *shade_str)
		724	{
		725	int new_shade = atoi (shade_str);
		726
		727	clamp_it (new_shade, -100, 200);
		728	if (new_shade < 0)
		729	new_shade = 200 - (100 + new_shade);
		730
		731	if (new_shade != shade)
		732	{
		733	shade = new_shade;
		734	set_tint_shade_flags ();
		735	return true;
		736	}
		737
		738	return false;
		739	}
		740
		741	#if XRENDER
		742	static void
		743	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
		744	{
		745	double sigma = radius / 2.0;
		746	double scale = sqrt (2.0 * M_PI) * sigma;
		747	double sum = 0.0;
		748
		749	for (int i = 0; i < width; i++)
		750	{
		751	double x = i - width / 2;
		752	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
		753	sum += kernel[i];
		754	}
		755
		756	params[0] = XDoubleToFixed (width);
		757	params[1] = XDoubleToFixed (1);
		758
		759	for (int i = 0; i < width; i++)
		760	params[i+2] = XDoubleToFixed (kernel[i] / sum);
		761	}
		762	#endif
		763
		764	bool
		765	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
		766	{
		767	bool ret = false;
		768	#if XRENDER
		769	if (!(bg_flags & BG_HAS_RENDER_CONV))
		770	return false;
		771
		772	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
		773	double *kernel = (double *)malloc (size * sizeof (double));
		774	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
		775
		776	XRenderPictureAttributes pa;
		777	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		778
		779	pa.repeat = RepeatPad;
		780	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		781	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
		782	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		783	XFreePixmap (dpy, tmp);
		784
		785	if (kernel && params)
		786	{
		787	size = h_blurRadius * 2 + 1;
		788	get_gaussian_kernel (h_blurRadius, size, kernel, params);
		789
		790	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		791	XRenderComposite (dpy,
		792	PictOpSrc,
		793	src,
		794	None,
		795	dst,
		796	0, 0,
		797	0, 0,
		798	0, 0,
		799	width, height);
		800
		801	::swap (src, dst);
		802
		803	size = v_blurRadius * 2 + 1;
		804	get_gaussian_kernel (v_blurRadius, size, kernel, params);
		805	::swap (params[0], params[1]);
		806
		807	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		808	XRenderComposite (dpy,
		809	PictOpSrc,
		810	src,
		811	None,
		812	dst,
		813	0, 0,
		814	0, 0,
		815	0, 0,
		816	width, height);
		817
		818	ret = true;
		819	}
		820
		821	free (kernel);
		822	free (params);
		823	XRenderFreePicture (dpy, src);
		824	XRenderFreePicture (dpy, dst);
		825	#endif
		826	return ret;
		827	}
		828
		829	bool
		830	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
		831	{
		832	bool ret = false;
		833
		834	if (shade == 100 && (bg_flags & BG_TINT_BITAND))
		835	{
		836	XGCValues gcv;
		837	GC gc;
		838
		839	/* In this case we can tint image server-side getting significant
		840	* performance improvements, as we eliminate XImage transfer
811	{	841	*/
812	flags |= bgPixmap_t::tintNeeded;	842	gcv.foreground = Pixel (tint);
		843	gcv.function = GXand;
		844	gcv.fill_style = FillSolid;
		845	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
		846	if (gc)
		847	{
		848	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
		849	ret = true;
		850	XFreeGC (dpy, gc);
813	}	851	}
814	}	852	}
815		853	# if XRENDER
816	if (flags & bgPixmap_t::tintNeeded)	854	else if (bg_flags & BG_HAS_RENDER)
817	{	855	{
818	if (flags & bgPixmap_t::tintWholesome)	856	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
819	flags |= bgPixmap_t::tintServerSide;	857
		858	if (bg_flags & BG_TINT_SET)
		859	tint.get (c);
		860
		861	if (shade <= 100)
		862	{
		863	c.r = c.r * shade / 100;
		864	c.g = c.g * shade / 100;
		865	c.b = c.b * shade / 100;
		866	}
820	else	867	else
821	{	868	{
822	#if XFT	869	c.r = c.r * (200 - shade) / 100;
823	flags |= bgPixmap_t::tintServerSide;	870	c.g = c.g * (200 - shade) / 100;
824	#endif	871	c.b = c.b * (200 - shade) / 100;
825	}	872	}
826	}
827		873
828	return flags;	874	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
829	}
830		875
831	bool	876	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
832	bgPixmap_t::set_tint (rxvt_color &new_tint)	877
833	{	878	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
834	if (tint != new_tint)	879
835	{	880	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
836	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);	881
837	tint = new_tint;	882	XRenderColor mask_c;
838	flags = (flags & ~tintFlags) | new_flags | tintSet;	883
		884	mask_c.alpha = 0xffff;
		885	mask_c.red =
		886	mask_c.green =
		887	mask_c.blue = 0;
		888	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		889
		890	mask_c.alpha = 0;
		891	mask_c.red = 0xffff - c.r;
		892	mask_c.green = 0xffff - c.g;
		893	mask_c.blue = 0xffff - c.b;
		894	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		895
		896	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		897
		898	if (shade > 100)
		899	{
		900	mask_c.alpha = 0;
		901	mask_c.red =
		902	mask_c.green =
		903	mask_c.blue = 0xffff * (shade - 100) / 100;
		904	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		905
		906	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		907	}
		908
839	return true;	909	ret = true;
840	}
841		910
842	return false;	911	XRenderFreePicture (dpy, mask_pic);
843	}	912	XRenderFreePicture (dpy, overlay_pic);
844		913	XRenderFreePicture (dpy, back_pic);
845	bool
846	bgPixmap_t::unset_tint ()
847	{
848	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
849
850	if (new_flags != (flags & tintFlags))
851	{	914	}
852	flags = (flags & ~tintFlags) | new_flags;	915	# endif
853	return true;
854	}
855		916
856	return false;	917	return ret;
857	}	918	}
858		919
859	bool	920	/*
860	bgPixmap_t::set_shade (const char *shade_str)	921	* Builds a pixmap of the same size as the terminal window that contains
861	{
862	int new_shade = (shade_str) ? atoi (shade_str) : 0;
863
864	if (new_shade < 0 && new_shade > -100)
865	new_shade = 200 - (100 + new_shade);
866	else if (new_shade == 100)
867	new_shade = 0;
868
869	if (new_shade != shade)
870	{
871	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
872	shade = new_shade;
873	flags = (flags & (~tintFlags | tintSet)) | new_flags;
874	return true;
875	}
876
877	return false;
878	}
879
880	/* make_transparency_pixmap()
881	* Builds a pixmap sized the same as terminal window, with depth same as the root window
882	* that pixmap contains tiled portion of the root pixmap that is supposed to be covered by	922	* the tiled portion of the root pixmap that is supposed to be covered by
883	* our window.	923	* our window.
884	*/	924	*/
885	unsigned long	925	bool
886	bgPixmap_t::make_transparency_pixmap ()	926	rxvt_term::make_transparency_pixmap ()
887	{	927	{
888	unsigned long result = 0;	928	bool ret = false;
889
890	if (target == NULL)
891	return 0;
892		929
893	/* root dimensions may change from call to call - but Display structure should	930	/* root dimensions may change from call to call - but Display structure should
894	* be always up-to-date, so let's use it :	931	* be always up-to-date, so let's use it :
895	*/	932	*/
896	Window root = target->display->root;
897	int screen = target->display->screen;	933	int screen = display->screen;
898	Display *dpy = target->dpy;	934	int root_depth = DefaultDepth (dpy, screen);
899	int root_width = DisplayWidth (dpy, screen);	935	int root_width = DisplayWidth (dpy, screen);
900	int root_height = DisplayHeight (dpy, screen);	936	int root_height = DisplayHeight (dpy, screen);
901	unsigned int root_pmap_width, root_pmap_height;	937	unsigned int root_pmap_width, root_pmap_height;
902	int window_width = target->szHint.width;	938	int window_width = szHint.width;
903	int window_height = target->szHint.height;	939	int window_height = szHint.height;
904	int sx, sy;	940	int sx, sy;
905	XGCValues gcv;	941	XGCValues gcv;
		942	GC gc;
906		943
907	TIMING_TEST_START (tp);	944	sx = target_x;
908	target->get_window_origin (sx, sy);	945	sy = target_y;
909		946
910	/* check if we are outside of the visible part of the virtual screen : */	947	/* check if we are outside of the visible part of the virtual screen : */
911	if (sx + window_width <= 0 || sy + window_height <= 0	948	if (sx + window_width <= 0 || sy + window_height <= 0
912	|| sx >= root_width || sy >= root_height)	949	|| sx >= root_width || sy >= root_height)
913	return 0;	950	return 0;
914		951
		952	// validate root pixmap and get its size
915	if (root_pixmap != None)	953	if (root_pixmap != None)
916	{	954	{
917	/* we want to validate the pixmap and get it's size at the same time : */	955	Window wdummy;
918	int junk;	956	int idummy;
919	unsigned int ujunk;	957	unsigned int udummy;
920	/* root pixmap may be bad - allow a error */	958
921	target->allowedxerror = -1;	959	allowedxerror = -1;
922		960
923	if (!XGetGeometry (dpy, root_pixmap, &root, &junk, &junk, &root_pmap_width, &root_pmap_height, &ujunk, &ujunk))	961	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))
924	root_pixmap = None;	962	root_pixmap = None;
925		963
926	target->allowedxerror = 0;	964	allowedxerror = 0;
927	}
928
929	Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth);
930	GC gc = NULL;
931
932	if (tiled_root_pmap == None) /* something really bad happened - abort */
933	return 0;
934
935	if (root_pixmap == None)
936	{	965	}
937	/* use tricks to obtain the root background image :*/
938	/* we want to create Overrideredirect window overlapping out window
939	with background type of Parent Relative and then grab it */
940	XSetWindowAttributes attr;
941	Window src;
942	bool success = false;
943		966
944	attr.background_pixmap = ParentRelative;	967	Pixmap recoded_root_pmap = root_pixmap;
945	attr.backing_store = Always;
946	attr.event_mask = ExposureMask;
947	attr.override_redirect = True;
948	src = XCreateWindow (dpy, root, sx, sy, window_width, window_height, 0,
949	CopyFromParent, CopyFromParent, CopyFromParent,
950	CWBackPixmap|CWBackingStore|CWOverrideRedirect|CWEventMask,
951	&attr);
952		968
953	if (src != None)	969	if (root_pixmap != None && root_depth != depth)
954	{	970	{
955	XEvent event;	971	#if XRENDER
956	int ev_count = 0;	972	if (bg_flags & BG_HAS_RENDER)
957	XGrabServer (dpy);
958	XMapRaised (dpy, src);
959	XSync (dpy, False);
960
961	/* XSync should get window where it's properly exposed,
962	* but to be on the safe side - let's check for the actual event to arrive : */
963	while (XCheckWindowEvent (dpy, src, ExposureMask, &event))
964	++ev_count;
965
966	if (ev_count > 0);
967	{
968	/* hooray! - we can grab the image! */
969	gc = XCreateGC (dpy, root, 0, NULL);
970	if (gc)
971	{
972	XCopyArea (dpy, src, tiled_root_pmap, gc, 0, 0, window_width, window_height, 0, 0);
973	success = true;
974	}
975	}
976
977	XDestroyWindow (dpy, src);
978	XUngrabServer (dpy);
979	//fprintf (stderr, "%s:%d: ev_count = %d\n", __FUNCTION__, __LINE__, ev_count);
980	}	973	{
		974	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
981		975
982	if (!success)	976	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
983	{	977	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
984	XFreePixmap (dpy, tiled_root_pmap);	978
985	tiled_root_pmap = None;	979	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
		980	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
		981
		982	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
		983
		984	XRenderFreePicture (dpy, src);
		985	XRenderFreePicture (dpy, dst);
986	}	986	}
987	else	987	else
988	result |= transpPmapTiled;	988	#endif
989	}	989	recoded_root_pmap = None;
990	else
991	{	990	}
		991
		992	if (recoded_root_pmap == None)
		993	return 0;
		994
		995	if (bg_pixmap == None
		996	|| bg_pmap_width != window_width
		997	|| bg_pmap_height != window_height)
		998	{
		999	if (bg_pixmap)
		1000	XFreePixmap (dpy, bg_pixmap);
		1001	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
		1002	bg_pmap_width = window_width;
		1003	bg_pmap_height = window_height;
		1004	}
		1005
992	/* straightforward pixmap copy */	1006	/* straightforward pixmap copy */
		1007	while (sx < 0) sx += root_pmap_width;
		1008	while (sy < 0) sy += root_pmap_height;
		1009
993	gcv.tile = root_pixmap;	1010	gcv.tile = recoded_root_pmap;
994	gcv.fill_style = FillTiled;	1011	gcv.fill_style = FillTiled;
995
996	while (sx < 0) sx += (int)root_width;
997	while (sy < 0) sy += (int)root_height;
998
999	gcv.ts_x_origin = -sx;	1012	gcv.ts_x_origin = -sx;
1000	gcv.ts_y_origin = -sy;	1013	gcv.ts_y_origin = -sy;
1001	gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	1014	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1002		1015
1003	if (gc)	1016	if (gc)
1004	{	1017	{
1005	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);	1018	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1006	result |= transpPmapTiled;	1019	ret = true;
		1020	unsigned long tr_flags = bg_flags & BG_EFFECTS_FLAGS;
		1021
		1022	if (!(bg_flags & BG_CLIENT_RENDER))
		1023	{
		1024	if (bg_flags & BG_NEEDS_BLUR)
		1025	{
		1026	if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
		1027	tr_flags &= ~BG_NEEDS_BLUR;
		1028	}
		1029	if (bg_flags & BG_NEEDS_TINT)
		1030	{
		1031	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
		1032	tr_flags &= ~BG_NEEDS_TINT;
		1033	}
		1034	if (tr_flags & BG_NEEDS_TINT)
		1035	{
		1036	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1037	if (ximage)
		1038	{
		1039	/* our own client-side tinting */
		1040	tint_ximage (DefaultVisual (dpy, display->screen), ximage);
		1041
		1042	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1043	XDestroyImage (ximage);
		1044	}
		1045	}
		1046	} /* server side rendering completed */
		1047
		1048	XFreeGC (dpy, gc);
		1049	}
		1050
		1051	if (recoded_root_pmap != root_pixmap)
		1052	XFreePixmap (dpy, recoded_root_pmap);
		1053
		1054	return ret;
		1055	}
		1056
		1057	void
		1058	rxvt_term::bg_set_root_pixmap ()
		1059	{
		1060	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);
		1061	if (new_root_pixmap == None)
		1062	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
		1063
		1064	root_pixmap = new_root_pixmap;
		1065	}
		1066	# endif /* ENABLE_TRANSPARENCY */
		1067
		1068	bool
		1069	rxvt_term::bg_render ()
		1070	{
		1071	bool transparent = false;
		1072
		1073	bg_invalidate ();
		1074	# ifdef ENABLE_TRANSPARENCY
		1075	if (bg_flags & BG_IS_TRANSPARENT)
		1076	{
		1077	/* we need to re-generate transparency pixmap in that case ! */
		1078	transparent = make_transparency_pixmap ();
		1079	if (transparent)
		1080	bg_flags |= BG_IS_VALID;
		1081	}
		1082	# endif
		1083
		1084	# ifdef BG_IMAGE_FROM_FILE
		1085	if (bg_flags & BG_IS_FROM_FILE)
		1086	{
		1087	if (render_image (transparent))
		1088	bg_flags |= BG_IS_VALID;
		1089	}
		1090	# endif
		1091
		1092	if (!(bg_flags & BG_IS_VALID))
		1093	{
		1094	if (bg_pixmap != None)
		1095	{
		1096	XFreePixmap (dpy, bg_pixmap);
		1097	bg_pixmap = None;
1007	}	1098	}
1008	}	1099	}
1009	TIMING_TEST_PRINT_RESULT (tp);
1010		1100
1011	if (tiled_root_pmap != None)	1101	scr_recolour (false);
1012	{	1102	bg_flags |= BG_NEEDS_REFRESH;
1013	if (!need_client_side_rendering ())
1014	{
1015	if ((flags & tintNeeded))
1016	{
1017	if (flags & tintWholesome)
1018	{
1019	/* In this case we can tint image server-side getting significant
1020	* performance improvements, as we eliminate XImage transfer
1021	*/
1022	gcv.foreground = Pixel (tint);
1023	gcv.function = GXand;
1024	gcv.fill_style = FillSolid;
1025	if (gc)
1026	XChangeGC (dpy, gc, GCFillStyle | GCForeground | GCFunction, &gcv);
1027	else
1028	gc = XCreateGC (dpy, root, GCFillStyle | GCForeground | GCFunction, &gcv);
1029	if (gc)
1030	{
1031	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1032	result |= transpPmapTinted;
1033	}
1034	}
1035	else
1036	{
1037	# if XFT
1038	Picture back_pic = 0;
1039	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1040		1103
1041	if (flags & tintSet)
1042	tint.get (c);
1043
1044	if (shade > 0 && shade < 100)
1045	{
1046	c.r = (c.r * shade) / 100;
1047	c.g = (c.g * shade) / 100;
1048	c.b = (c.b * shade) / 100;
1049	}
1050	else if (shade > 100 && shade < 200)
1051	{
1052	c.r = (c.r * (200 - shade)) / 100;
1053	c.g = (c.g * (200 - shade)) / 100;
1054	c.b = (c.b * (200 - shade)) / 100;
1055	}
1056
1057	XRenderPictFormat pf;
1058	pf.type = PictTypeDirect;
1059	pf.depth = 32;
1060	pf.direct.redMask = 0xff;
1061	pf.direct.greenMask = 0xff;
1062	pf.direct.blueMask = 0xff;
1063	pf.direct.alphaMask = 0xff;
1064
1065	XRenderPictFormat *solid_format = XRenderFindFormat (dpy,
1066	(PictFormatType|
1067	PictFormatDepth|
1068	PictFormatRedMask|
1069	PictFormatGreenMask|
1070	PictFormatBlueMask|
1071	PictFormatAlphaMask),
1072	&pf,
1073	0);
1074	XRenderPictFormat *root_format = XRenderFindVisualFormat (dpy, DefaultVisualOfScreen (ScreenOfDisplay (dpy, target->display->screen)));
1075	XRenderPictureAttributes pa ;
1076
1077	back_pic = XRenderCreatePicture (dpy, tiled_root_pmap, root_format, 0, &pa);
1078
1079	pa.repeat = True;
1080
1081	Pixmap overlay_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1082	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1083	XFreePixmap (dpy, overlay_pmap);
1084
1085	pa.component_alpha = True;
1086	Pixmap mask_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1087	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1088	XFreePixmap (dpy, mask_pmap);
1089
1090	if (mask_pic && overlay_pic && back_pic)
1091	{
1092	XRenderColor mask_c;
1093
1094	memset (&mask_c, (shade > 100) ? 0xFF : 0x0, sizeof (mask_c));
1095	mask_c.alpha = 0xffff;
1096	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1097
1098	mask_c.alpha = 0;
1099	mask_c.red = 0xffff - c.r;
1100	mask_c.green = 0xffff - c.g;
1101	mask_c.blue = 0xffff - c.b;
1102	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1103	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, window_width, window_height);
1104	result |= transpPmapTinted;
1105	}
1106
1107	XRenderFreePicture (dpy, mask_pic);
1108	XRenderFreePicture (dpy, overlay_pic);
1109	XRenderFreePicture (dpy, back_pic);
1110	# if DO_TIMING_TEST
1111	XSync (dpy, False);
1112	# endif
1113	# endif
1114	}
1115	}
1116	} /* server side rendering completed */
1117
1118	if (pixmap)
1119	XFreePixmap (dpy, pixmap);
1120
1121	pixmap = tiled_root_pmap;
1122	pmap_width = window_width;
1123	pmap_height = window_height;
1124	pmap_depth = root_depth;
1125	}
1126
1127	if (gc)
1128	XFreeGC (dpy, gc);
1129
1130	TIMING_TEST_PRINT_RESULT (tp);
1131
1132	return result;
1133	}
1134
1135	bool
1136	bgPixmap_t::set_root_pixmap ()
1137	{
1138	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1139	if (new_root_pixmap == None)
1140	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1141
1142	if (new_root_pixmap != root_pixmap)
1143	{
1144	root_pixmap = new_root_pixmap;
1145	return true;
1146	}
1147
1148	return false;
1149	}
1150	# endif /* ENABLE_TRANSPARENCY */
1151
1152	# ifndef HAVE_AFTERIMAGE
1153	static void ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm);
1154	# endif
1155
1156	bool
1157	bgPixmap_t::render ()
1158	{
1159	unsigned long background_flags = 0;
1160
1161	if (target == NULL)
1162	return false;
1163
1164	TIMING_TEST_START (tp);
1165
1166	invalidate ();
1167	# ifdef ENABLE_TRANSPARENCY
1168	if (flags & isTransparent)
1169	{
1170	/* we need to re-generate transparency pixmap in that case ! */
1171	background_flags = make_transparency_pixmap ();
1172	if (background_flags == 0)
1173	return false;
1174	else if ((background_flags & transpTransformations) == (flags & transpTransformations)
1175	&& pmap_depth == target->depth)
1176	flags = flags & ~isInvalid;
1177	}
1178	# endif
1179
1180	# ifdef BG_IMAGE_FROM_FILE
1181	if (have_image
1182	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1183	{
1184	if (render_image (background_flags))
1185	flags = flags & ~isInvalid;
1186	}
1187	# endif
1188
1189	XImage *result = NULL;
1190
1191	if (background_flags && (flags & isInvalid))
1192	{
1193	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1194
1195	# if !defined(HAVE_AFTERIMAGE) && !XFT
1196	/* our own client-side tinting */
1197	/* ATTENTION: We ASSUME that XFT will let us do all the tinting necessary server-side.
1198	This may need to be changed in need_client_side_rendering() logic is altered !!! */
1199	if (result != NULL && !(background_flags & transpPmapTinted) && (flags & tintNeeded))
1200	{
1201	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1202	if (flags & tintSet)
1203	tint.get (c);
1204	ShadeXImage (target, result, shade, c.r, c.g, c.b);
1205	}
1206	# endif
1207	}
1208
1209	if (result)
1210	{
1211	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1212
1213	if (gc)
1214	{
1215	if (/*pmap_depth != target->depth &&*/ pixmap != None)
1216	{
1217	XFreePixmap (target->dpy, pixmap);
1218	pixmap = None;
1219	}
1220
1221	if (pixmap == None)
1222	{
1223	pixmap = XCreatePixmap (target->dpy, target->vt, result->width, result->height, target->depth);
1224	pmap_width = result->width;
1225	pmap_height = result->height;
1226	pmap_depth = target->depth;
1227	}
1228
1229	if (pmap_depth != result->depth)
1230	{
1231	/* Bad Match error will ensue ! stupid X !!!! */
1232	if (result->depth == 24 && pmap_depth == 32)
1233	result->depth = 32;
1234	else if (result->depth == 32 && pmap_depth == 24)
1235	result->depth = 24;
1236	else
1237	{
1238	/* TODO: implement image recoding */
1239	}
1240	}
1241
1242	if (pmap_depth == result->depth)
1243	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1244
1245	XFreeGC (target->dpy, gc);
1246	flags = flags & ~isInvalid;
1247	}
1248
1249	XDestroyImage (result);
1250	}
1251
1252	if (flags & isInvalid)
1253	{
1254	if (pixmap != None)
1255	{
1256	XFreePixmap (target->dpy, pixmap);
1257	pixmap = None;
1258	}
1259	}
1260
1261	apply ();
1262
1263	XSync (target->dpy, False);
1264	valid_since = ev::now ();	1104	bg_valid_since = ev::now ();
1265
1266	TIMING_TEST_PRINT_RESULT (tp);
1267		1105
1268	return true;	1106	return true;
1269	}	1107	}
1270		1108
1271	bool
1272	bgPixmap_t::set_target (rxvt_term *new_target)
1273	{
1274	if (new_target)
1275	if (target != new_target)
1276	{
1277	target = new_target;
1278	# ifdef ENABLE_TRANSPARENCY
1279	root_depth = DefaultDepthOfScreen (ScreenOfDisplay (target->dpy, target->display->screen));
1280	# endif
1281	return true;
1282	}
1283
1284	return false;
1285	}
1286
1287	void	1109	void
1288	bgPixmap_t::apply ()	1110	rxvt_term::bg_init ()
1289	{	1111	{
1290	if (target)
1291	{
1292	flags &= ~isVtOrigin;
1293
1294	if (pixmap != None)
1295	{
1296	/* set target's background to pixmap */
1297	# ifdef ENABLE_TRANSPARENCY	1112	#ifdef ENABLE_TRANSPARENCY
1298	if (flags & isTransparent)	1113	shade = 100;
1299	{
1300	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1301	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1302
1303	if (target->scrollBar.win)
1304	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1305	}
1306	else
1307	# endif	1114	#endif
1308	{
1309	flags |= isVtOrigin;
1310	/* force old pixmap dereference in case it was transparent before :*/
1311	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1312	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1313	/* do we also need to set scrollbar's background here ? */
1314		1115
1315	if (target->scrollBar.win)	1116	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
1316	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);	1117	#if XRENDER
1317	}	1118	int major, minor;
1318	}	1119	if (XRenderQueryVersion (dpy, &major, &minor))
1319	else	1120	bg_flags |= BG_HAS_RENDER;
1320	{	1121	XFilters *filters = XRenderQueryFilters (dpy, vt);
1321	/* set target background to a pixel */	1122	if (filters)
1322	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1323	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);
1324	/* do we also need to set scrollbar's background here ? */
1325	if (target->scrollBar.win)
1326	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1327	}
1328
1329	/* don't want Expose on the parent or vt. It is better to use
1330	scr_touch or we get a great deal of flicker otherwise: */
1331	XClearWindow (target->dpy, target->parent[0]);
1332
1333	if (target->scrollBar.state && target->scrollBar.win)
1334	{
1335	target->scrollBar.state = STATE_IDLE;
1336	target->scrollBar.show (0);
1337	}
1338
1339	target->want_refresh = 1;
1340	flags |= hasChanged;
1341	}	1123	{
		1124	for (int i = 0; i < filters->nfilter; i++)
		1125	if (!strcmp (filters->filter[i], FilterConvolution))
		1126	bg_flags |= BG_HAS_RENDER_CONV;
		1127
		1128	XFree (filters);
		1129	}
		1130	#endif
1342	}	1131	}
1343		1132
1344	#endif /* HAVE_BG_PIXMAP */	1133	#endif /* HAVE_BG_PIXMAP */
1345		1134
1346	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) && !XFT	1135	#ifdef ENABLE_TRANSPARENCY
1347	/* taken from aterm-0.4.2 */	1136	/* based on code from aterm-0.4.2 */
1348		1137
1349	typedef uint32_t RUINT32T;
1350
1351	static void	1138	static inline void
1352	ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm)	1139	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
		1140	{
		1141	for (int i = 0; i <= mask >> sh; i++)
		1142	{
		1143	uint32_t tmp;
		1144	tmp = i * high;
		1145	tmp += (mask >> sh) * low;
		1146	lookup[i] = (tmp / 0xffff) << sh;
		1147	}
		1148	}
		1149
		1150	void
		1151	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)
1353	{	1152	{
1354	int sh_r, sh_g, sh_b;	1153	int sh_r, sh_g, sh_b;
1355	RUINT32T mask_r, mask_g, mask_b;	1154	uint32_t mask_r, mask_g, mask_b;
1356	RUINT32T *lookup, *lookup_r, *lookup_g, *lookup_b;	1155	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1357	unsigned int lower_lim_r, lower_lim_g, lower_lim_b;	1156	unsigned short low;
1358	unsigned int upper_lim_r, upper_lim_g, upper_lim_b;	1157	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1359	int i;
1360		1158
1361	Visual *visual = term->visual;
1362
1363	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return ;	1159	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1364
1365	if (shade == 0)
1366	shade = 100;
1367		1160
1368	/* for convenience */	1161	/* for convenience */
1369	mask_r = visual->red_mask;	1162	mask_r = visual->red_mask;
1370	mask_g = visual->green_mask;	1163	mask_g = visual->green_mask;
1371	mask_b = visual->blue_mask;	1164	mask_b = visual->blue_mask;
1372		1165
1373	/* boring lookup table pre-initialization */	1166	/* boring lookup table pre-initialization */
1374	switch (srcImage->bits_per_pixel) {	1167	switch (ximage->depth)
		1168	{
1375	case 15:	1169	case 15:
1376	if ((mask_r != 0x7c00) ||	1170	if ((mask_r != 0x7c00) ||
1377	(mask_g != 0x03e0) ||	1171	(mask_g != 0x03e0) ||
1378	(mask_b != 0x001f))	1172	(mask_b != 0x001f))
1379	return;	1173	return;
1380	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32));	1174	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1381	lookup_r = lookup;	1175	lookup_r = lookup;
1382	lookup_g = lookup+32;	1176	lookup_g = lookup+32;
1383	lookup_b = lookup+32+32;	1177	lookup_b = lookup+32+32;
1384	sh_r = 10;	1178	sh_r = 10;
1385	sh_g = 5;	1179	sh_g = 5;
1386	sh_b = 0;	1180	sh_b = 0;
1387	break;	1181	break;
1388	case 16:	1182	case 16:
1389	if ((mask_r != 0xf800) ||	1183	if ((mask_r != 0xf800) ||
1390	(mask_g != 0x07e0) ||	1184	(mask_g != 0x07e0) ||
1391	(mask_b != 0x001f))	1185	(mask_b != 0x001f))
1392	return;	1186	return;
1393	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32));	1187	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1394	lookup_r = lookup;	1188	lookup_r = lookup;
1395	lookup_g = lookup+32;	1189	lookup_g = lookup+32;
1396	lookup_b = lookup+32+64;	1190	lookup_b = lookup+32+64;
1397	sh_r = 11;	1191	sh_r = 11;
1398	sh_g = 5;	1192	sh_g = 5;
1399	sh_b = 0;	1193	sh_b = 0;
1400	break;	1194	break;
1401	case 24:	1195	case 24:
1402	if ((mask_r != 0xff0000) ||	1196	if ((mask_r != 0xff0000) ||
1403	(mask_g != 0x00ff00) ||	1197	(mask_g != 0x00ff00) ||
1404	(mask_b != 0x0000ff))	1198	(mask_b != 0x0000ff))
1405	return;	1199	return;
1406	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));	1200	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1407	lookup_r = lookup;	1201	lookup_r = lookup;
1408	lookup_g = lookup+256;	1202	lookup_g = lookup+256;
1409	lookup_b = lookup+256+256;	1203	lookup_b = lookup+256+256;
1410	sh_r = 16;	1204	sh_r = 16;
1411	sh_g = 8;	1205	sh_g = 8;
1412	sh_b = 0;	1206	sh_b = 0;
1413	break;	1207	break;
1414	case 32:	1208	case 32:
1415	if ((mask_r != 0xff0000) ||	1209	if ((mask_r != 0xff0000) ||
1416	(mask_g != 0x00ff00) ||	1210	(mask_g != 0x00ff00) ||
1417	(mask_b != 0x0000ff))	1211	(mask_b != 0x0000ff))
1418	return;	1212	return;
1419	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));	1213	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1420	lookup_r = lookup;	1214	lookup_r = lookup;
1421	lookup_g = lookup+256;	1215	lookup_g = lookup+256;
1422	lookup_b = lookup+256+256;	1216	lookup_b = lookup+256+256;
1423	sh_r = 16;	1217	sh_r = 16;
1424	sh_g = 8;	1218	sh_g = 8;
1425	sh_b = 0;	1219	sh_b = 0;
1426	break;	1220	break;
1427	default:	1221	default:
1428	return; /* we do not support this color depth */	1222	return; /* we do not support this color depth */
1429	}	1223	}
		1224
		1225	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		1226
		1227	if (bg_flags & BG_TINT_SET)
		1228	tint.get (c);
1430		1229
1431	/* prepare limits for color transformation (each channel is handled separately) */	1230	/* prepare limits for color transformation (each channel is handled separately) */
1432	if (shade < 0) {	1231	if (shade > 100)
1433	shade = -shade;
1434	if (shade < 0) shade = 0;
1435	if (shade > 100) shade = 100;
1436
1437	lower_lim_r = 65535-rm;
1438	lower_lim_g = 65535-gm;
1439	lower_lim_b = 65535-bm;
1440
1441	lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100);
1442	lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100);
1443	lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100);
1444
1445	upper_lim_r = upper_lim_g = upper_lim_b = 65535;
1446	} else {
1447	if (shade < 0) shade = 0;
1448	if (shade > 100) shade = 100;
1449
1450	lower_lim_r = lower_lim_g = lower_lim_b = 0;
1451
1452	upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100);
1453	upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100);
1454	upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100);
1455	}
1456
1457	/* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */
1458	if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000 ))
1459	{	1232	{
1460	unsigned int tmp;	1233	c.r = c.r * (200 - shade) / 100;
		1234	c.g = c.g * (200 - shade) / 100;
		1235	c.b = c.b * (200 - shade) / 100;
1461		1236
1462	tmp = lower_lim_r;	1237	low = 0xffff * (shade - 100) / 100;
1463	lower_lim_r = lower_lim_b;
1464	lower_lim_b = tmp;
1465
1466	tmp = upper_lim_r;
1467	upper_lim_r = upper_lim_b;
1468	upper_lim_b = tmp;
1469	}	1238	}
		1239	else
		1240	{
		1241	c.r = c.r * shade / 100;
		1242	c.g = c.g * shade / 100;
		1243	c.b = c.b * shade / 100;
		1244
		1245	low = 0;
		1246	}
1470		1247
1471	/* fill our lookup tables */	1248	/* fill our lookup tables */
1472	for (i = 0; i <= mask_r>>sh_r; i++)	1249	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1473	{	1250	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1474	RUINT32T tmp;	1251	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1475	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r));
1476	tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r);
1477	lookup_r[i] = (tmp/65535)<<sh_r;
1478	}
1479	for (i = 0; i <= mask_g>>sh_g; i++)
1480	{
1481	RUINT32T tmp;
1482	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g));
1483	tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g);
1484	lookup_g[i] = (tmp/65535)<<sh_g;
1485	}
1486	for (i = 0; i <= mask_b>>sh_b; i++)
1487	{
1488	RUINT32T tmp;
1489	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b));
1490	tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b);
1491	lookup_b[i] = (tmp/65535)<<sh_b;
1492	}
1493		1252
1494	/* apply table to input image (replacing colors by newly calculated ones) */	1253	/* apply table to input image (replacing colors by newly calculated ones) */
1495	switch (srcImage->bits_per_pixel)	1254	if (ximage->bits_per_pixel == 32
		1255	&& (ximage->depth == 24 || ximage->depth == 32)
		1256	&& ximage->byte_order == host_byte_order)
1496	{	1257	{
1497	case 15:
1498	{
1499	unsigned short *p1, *pf, *p, *pl;	1258	uint32_t *p1, *pf, *p, *pl;
1500	p1 = (unsigned short *) srcImage->data;	1259	p1 = (uint32_t *) ximage->data;
1501	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);	1260	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
		1261
1502	while (p1 < pf)	1262	while (p1 < pf)
1503	{	1263	{
1504	p = p1;	1264	p = p1;
1505	pl = p1 + srcImage->width;	1265	pl = p1 + ximage->width;
1506	for (; p < pl; p++)	1266	for (; p < pl; p++)
1507	{	1267	{
1508	*p = lookup_r[(*p & 0x7c00)>>10] |	1268	*p = lookup_r[(*p & 0xff0000) >> 16] |
1509	lookup_g[(*p & 0x03e0)>> 5] |	1269	lookup_g[(*p & 0x00ff00) >> 8] |
1510	lookup_b[(*p & 0x001f)];	1270	lookup_b[(*p & 0x0000ff)] |
		1271	(*p & 0xff000000);
		1272	}
		1273	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1511	}	1274	}
1512	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1513	}	1275	}
1514	break;	1276	else
1515	}
1516	case 16:
1517	{
1518	unsigned short *p1, *pf, *p, *pl;
1519	p1 = (unsigned short *) srcImage->data;
1520	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1521	while (p1 < pf)
1522	{	1277	{
1523	p = p1;	1278	for (int y = 0; y < ximage->height; y++)
1524	pl = p1 + srcImage->width;	1279	for (int x = 0; x < ximage->width; x++)
1525	for (; p < pl; p++)
1526	{	1280	{
1527	*p = lookup_r[(*p & 0xf800)>>11] |	1281	unsigned long pixel = XGetPixel (ximage, x, y);
1528	lookup_g[(*p & 0x07e0)>> 5] |	1282	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1529	lookup_b[(*p & 0x001f)];	1283	lookup_g[(pixel & mask_g) >> sh_g] |
		1284	lookup_b[(pixel & mask_b) >> sh_b];
		1285	XPutPixel (ximage, x, y, pixel);
1530	}	1286	}
1531	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1532	}	1287	}
1533	break;
1534	}
1535	case 24:
1536	{
1537	unsigned char *p1, *pf, *p, *pl;
1538	p1 = (unsigned char *) srcImage->data;
1539	pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1540	while (p1 < pf)
1541	{
1542	p = p1;
1543	pl = p1 + srcImage->width * 3;
1544	for (; p < pl; p += 3)
1545	{
1546	p[0] = lookup_r[(p[0] & 0xff0000)>>16];
1547	p[1] = lookup_r[(p[1] & 0x00ff00)>> 8];
1548	p[2] = lookup_r[(p[2] & 0x0000ff)];
1549	}
1550	p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line);
1551	}
1552	break;
1553	}
1554	case 32:
1555	{
1556	RUINT32T *p1, *pf, *p, *pl;
1557	p1 = (RUINT32T *) srcImage->data;
1558	pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1559
1560	while (p1 < pf)
1561	{
1562	p = p1;
1563	pl = p1 + srcImage->width;
1564	for (; p < pl; p++)
1565	{
1566	*p = lookup_r[(*p & 0xff0000)>>16] |
1567	lookup_g[(*p & 0x00ff00)>> 8] |
1568	lookup_b[(*p & 0x0000ff)] |
1569	(*p & ~0xffffff);
1570	}
1571	p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line);
1572	}
1573	break;
1574	}
1575	}
1576		1288
1577	free (lookup);	1289	free (lookup);
1578	}	1290	}
1579	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1291	#endif /* ENABLE_TRANSPARENCY */

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