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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.49 by sf-exg, Tue Aug 31 15:12:49 2010 UTC vs.
Revision 1.217 by sf-exg, Sun May 20 16:34:42 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	}
100	#endif	58	# 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		59
112	void	60	void
113	bgPixmap_t::destroy ()	61	rxvt_term::bg_destroy ()
114	{	62	{
115	#ifdef HAVE_AFTERIMAGE	63	if (bg_pixmap)
116	if (original_asim)
117	safe_asimage_destroy (original_asim);
118	#endif
119
120	if (pixmap && target)
121	XFreePixmap (target->dpy, pixmap);	64	XFreePixmap (dpy, bg_pixmap);
122	}	65	}
123		66
124	bool	67	bool
125	bgPixmap_t::window_size_sensitive ()	68	rxvt_term::bg_set_position (int x, int y)
		69	{
		70
		71	if (target_x != x
		72	|| target_y != y)
		73	{
		74	target_x = x;
		75	target_y = y;
		76	return true;
		77	}
		78	return false;
		79	}
		80
		81	bool
		82	rxvt_term::bg_window_size_sensitive ()
126	{	83	{
127	# ifdef ENABLE_TRANSPARENCY	84	# ifdef ENABLE_TRANSPARENCY
128	if (flags & isTransparent)	85	if (bg_flags & BG_IS_TRANSPARENT)
129	return true;	86	return true;
130	# endif	87	# endif
131		88
132	# ifdef BG_IMAGE_FROM_FILE	89	# ifdef BG_IMAGE_FROM_FILE
133	if (have_image)	90	if (bg_image.flags & IM_IS_SET)
134	{	91	{
135	if (h_scale != 0 || v_scale != 0	92	if ((bg_image.flags & IM_IS_SIZE_SENSITIVE)
136	|| h_align != 0 || v_align != 0)	93	|| bg_image.width () > szHint.width
		94	|| bg_image.height () > szHint.height)
137	return true;	95	return true;
138	}	96	}
139	# endif	97	# endif
140		98
141	return false;	99	return false;
142	}	100	}
143		101
144	bool	102	bool
145	bgPixmap_t::window_position_sensitive ()	103	rxvt_term::bg_window_position_sensitive ()
146	{	104	{
147	# ifdef ENABLE_TRANSPARENCY	105	# ifdef ENABLE_TRANSPARENCY
148	if (flags & isTransparent)	106	if (bg_flags & BG_IS_TRANSPARENT)
149	return true;	107	return true;
150	# endif	108	# endif
151		109
152	# ifdef BG_IMAGE_FROM_FILE	110	# ifdef BG_IMAGE_FROM_FILE
153	if (have_image)	111	if (bg_image.flags & IM_IS_SET)
154	{	112	{
155	if (h_align == rootAlign || v_align == rootAlign)	113	if (bg_image.flags & IM_ROOT_ALIGN)
156	return true;	114	return true;
157	}	115	}
158	# endif	116	# endif
159		117
160	return false;	118	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	}	119	}
182		120
183	# ifdef BG_IMAGE_FROM_FILE	121	# 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	122	static inline int
222	make_align_position (int align, int window_size, int image_size)	123	make_align_position (int align, int window_size, int image_size)
223	{	124	{
224	int diff = window_size - image_size;
225	int smaller = MIN (image_size,window_size);
226
227	if (align >= 0 && align <= 50)	125	if (align >= 0 && align <= 100)
228	return diff * align / 100;	126	return lerp (0, window_size - image_size, align);
229	else if (align > 50 && align <= 100)
230	return window_size - image_size - diff * (100 - align) / 100;
231	else if (align > 100 && align <= 200 )
232	return ((align - 100) * smaller / 100) + window_size - smaller;
233	else if (align > -100 && align < 0)	127	else if (align > 100)
234	return ((align + 100) * smaller / 100) - image_size;	128	return lerp (window_size - image_size, window_size, align - 100);
235	return 0;	129	else
		130	return lerp (-image_size, 0, align + 100);
236	}	131	}
237		132
238	static inline int	133	static inline int
239	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	134	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
240	{	135	{
241	int src_pos = 0;	136	int src_pos = 0;
242	dst_pos = 0;	137	dst_pos = pos;
243	dst_size = size;	138	dst_size = size;
244	if (pos < 0 && size > target_size)	139	if (pos < 0)
245	{	140	{
246	src_pos = -pos;	141	src_pos = -pos;
		142	dst_pos = 0;
247	dst_size += pos;	143	dst_size += pos;
248	}	144	}
249	else if (pos > 0)
250	dst_pos = pos;
251		145
252	if (dst_pos + dst_size > target_size)
253	dst_size = target_size - dst_pos;	146	min_it (dst_size, target_size - dst_pos);
254	return src_pos;	147	return src_pos;
255	}	148	}
256		149
257	bool	150	bool
258	bgPixmap_t::set_geometry (const char *geom)	151	rxvt_image::set_geometry (const char *geom, bool update)
259	{	152	{
		153	bool changed = false;
260	int geom_flags = 0, changed = 0;	154	int geom_flags = 0;
261	int x = 0, y = 0;	155	int x = h_align;
		156	int y = v_align;
262	unsigned int w = 0, h = 0;	157	unsigned int w = h_scale;
263	unsigned int n;	158	unsigned int h = v_scale;
264	unsigned long new_flags = (flags & (~geometryFlags));	159	unsigned long new_flags = 0;
265	const char *p;
266	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
267		160
268	if (geom == NULL)	161	if (geom == NULL)
269	return false;	162	return false;
270		163
271	char str[MAXLEN_GEOM];	164	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	{	165	{
280	char *ops;	166	char **arr = rxvt_strsplit (':', geom);
281	new_flags |= geometrySet;
282		167
283	memcpy (str, geom, n);	168	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	{	169	{
295	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);	170	if (!strcasecmp (arr[i], "style=tiled"))
296	*(++tmp) = '\0';
297	if (ops == tmp) ++ops;
298	}	171	{
		172	new_flags = IM_TILE;
		173	w = h = noScale;
		174	x = y = 0;
		175	geom_flags = WidthValue|HeightValue|XValue|YValue;
		176	}
		177	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
		178	{
		179	new_flags = IM_KEEP_ASPECT;
		180	w = h = windowScale;
		181	x = y = centerAlign;
		182	geom_flags = WidthValue|HeightValue|XValue|YValue;
		183	}
		184	else if (!strcasecmp (arr[i], "style=stretched"))
		185	{
		186	new_flags = 0;
		187	w = h = windowScale;
		188	geom_flags = WidthValue|HeightValue;
		189	}
		190	else if (!strcasecmp (arr[i], "style=centered"))
		191	{
		192	new_flags = 0;
		193	w = h = noScale;
		194	x = y = centerAlign;
		195	geom_flags = WidthValue|HeightValue|XValue|YValue;
		196	}
		197	else if (!strcasecmp (arr[i], "style=root-tiled"))
		198	{
		199	new_flags = IM_TILE|IM_ROOT_ALIGN;
		200	w = h = noScale;
		201	geom_flags = WidthValue|HeightValue;
		202	}
		203	else if (!strcasecmp (arr[i], "op=tile"))
		204	new_flags |= IM_TILE;
		205	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		206	new_flags |= IM_KEEP_ASPECT;
		207	else if (!strcasecmp (arr[i], "op=root-align"))
		208	new_flags |= IM_ROOT_ALIGN;
		209
		210	// deprecated
		211	else if (!strcasecmp (arr[i], "tile"))
		212	{
		213	new_flags |= IM_TILE;
		214	w = h = noScale;
		215	geom_flags |= WidthValue|HeightValue;
		216	}
		217	else if (!strcasecmp (arr[i], "propscale"))
		218	{
		219	new_flags |= IM_KEEP_ASPECT;
		220	w = h = windowScale;
		221	geom_flags |= WidthValue|HeightValue;
		222	}
		223	else if (!strcasecmp (arr[i], "hscale"))
		224	{
		225	new_flags |= IM_TILE;
		226	w = windowScale;
		227	h = noScale;
		228	geom_flags |= WidthValue|HeightValue;
		229	}
		230	else if (!strcasecmp (arr[i], "vscale"))
		231	{
		232	new_flags |= IM_TILE;
		233	h = windowScale;
		234	w = noScale;
		235	geom_flags |= WidthValue|HeightValue;
		236	}
		237	else if (!strcasecmp (arr[i], "scale"))
		238	{
		239	w = h = windowScale;
		240	geom_flags |= WidthValue|HeightValue;
		241	}
		242	else if (!strcasecmp (arr[i], "auto"))
		243	{
		244	w = h = windowScale;
		245	x = y = centerAlign;
		246	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		247	}
		248	else if (!strcasecmp (arr[i], "root"))
		249	{
		250	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		251	w = h = noScale;
		252	geom_flags |= WidthValue|HeightValue;
		253	}
		254
		255	else
		256	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
		257	} /* done parsing ops */
		258
		259	rxvt_free_strsplit (arr);
		260	}
		261
		262	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
		263
		264	if (!update)
		265	{
		266	if (!(geom_flags & XValue))
		267	x = y = defaultAlign;
		268	else if (!(geom_flags & YValue))
		269	y = x;
		270
		271	if (!(geom_flags & (WidthValue|HeightValue)))
		272	w = h = defaultScale;
		273	else if (!(geom_flags & HeightValue))
		274	h = w;
		275	else if (!(geom_flags & WidthValue))
		276	w = h;
		277	}
		278
		279	clamp_it (x, -100, 200);
		280	clamp_it (y, -100, 200);
		281
		282	if (flags != new_flags
		283	|| h_scale != w
		284	|| v_scale != h
		285	|| h_align != x
		286	|| v_align != y)
		287	{
		288	flags = new_flags;
		289	h_scale = w;
		290	v_scale = h;
		291	h_align = x;
		292	v_align = y;
		293	changed = true;
		294	}
		295
		296	if (!(flags & IM_TILE)
		297	|| h_scale || v_scale
		298	|| (!(flags & IM_ROOT_ALIGN) && (h_align || v_align)))
		299	flags |= IM_IS_SIZE_SENSITIVE;
		300	else
		301	flags &= ~IM_IS_SIZE_SENSITIVE;
		302
		303	return changed;
		304	}
		305
		306	void
		307	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
		308	{
		309	int image_width = image.width ();
		310	int image_height = image.height ();
		311	int target_width = szHint.width;
		312	int target_height = szHint.height;
		313	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		314	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
		315
		316	w = h_scale * target_width / 100;
		317	h = v_scale * target_height / 100;
		318
		319	if (image.flags & IM_KEEP_ASPECT)
		320	{
		321	float scale = (float)w / image_width;
		322	min_it (scale, (float)h / image_height);
		323	w = image_width * scale + 0.5;
		324	h = image_height * scale + 0.5;
		325	}
		326
		327	if (!w) w = image_width;
		328	if (!h) h = image_height;
		329
		330	if (image.flags & IM_ROOT_ALIGN)
		331	{
		332	x = -target_x;
		333	y = -target_y;
		334	}
		335	else
		336	{
		337	x = make_align_position (image.h_align, target_width, w);
		338	y = make_align_position (image.v_align, target_height, h);
		339	}
		340	}
		341
		342	# ifdef HAVE_PIXBUF
		343	bool
		344	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
		345	int src_x, int src_y, int dst_x, int dst_y,
		346	unsigned int width, unsigned int height)
		347	{
		348	XImage *ximage;
		349	char *line;
		350	int width_r, width_g, width_b, width_a;
		351	int sh_r, sh_g, sh_b, sh_a;
		352	uint32_t alpha_mask;
		353	int rowstride;
		354	int channels;
		355	unsigned char *row;
		356
		357	if (visual->c_class != TrueColor)
		358	return false;
		359
		360	#if XRENDER
		361	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		362	if (format)
		363	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
		364	else
		365	#endif
		366	alpha_mask = 0;
		367
		368	width_r = ecb_popcount32 (visual->red_mask);
		369	width_g = ecb_popcount32 (visual->green_mask);
		370	width_b = ecb_popcount32 (visual->blue_mask);
		371	width_a = ecb_popcount32 (alpha_mask);
		372
		373	if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
		374	return false;
		375
		376	sh_r = ecb_ctz32 (visual->red_mask);
		377	sh_g = ecb_ctz32 (visual->green_mask);
		378	sh_b = ecb_ctz32 (visual->blue_mask);
		379	sh_a = ecb_ctz32 (alpha_mask);
		380
		381	if (width > 32767 || height > 32767)
		382	return false;
		383
		384	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, 0,
		385	width, height, 32, 0);
		386	if (!ximage)
		387	return false;
		388
		389	if (height > INT_MAX / ximage->bytes_per_line
		390	|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
		391	{
		392	XDestroyImage (ximage);
		393	return false;
		394	}
		395
		396	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		397
		398	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
		399	channels = gdk_pixbuf_get_n_channels (pixbuf);
		400	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
		401	line = ximage->data;
		402
		403	rgba c (0, 0, 0);
		404
		405	if (channels == 4 && alpha_mask == 0)
		406	{
		407	pix_colors[Color_bg].get (c);
		408	c.r >>= 8;
		409	c.g >>= 8;
		410	c.b >>= 8;
		411	}
		412
		413	for (int y = 0; y < height; y++)
		414	{
		415	for (int x = 0; x < width; x++)
		416	{
		417	unsigned char *pixel = row + x * channels;
		418	uint32_t value;
		419	unsigned char r, g, b, a;
		420
		421	if (channels == 4)
		422	{
		423	a = pixel[3];
		424	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
		425	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
		426	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
		427	}
		428	else
		429	{
		430	a = 0xff;
		431	r = pixel[0];
		432	g = pixel[1];
		433	b = pixel[2];
		434	}
		435
		436	value = ((r >> (8 - width_r)) << sh_r)
		437	| ((g >> (8 - width_g)) << sh_g)
		438	| ((b >> (8 - width_b)) << sh_b)
		439	| ((a >> (8 - width_a)) << sh_a);
		440
		441	if (ximage->bits_per_pixel == 32)
		442	((uint32_t *)line)[x] = value;
		443	else
		444	XPutPixel (ximage, x, y, value);
299	}	445	}
300		446
301	if (ops > str || ops == NULL)	447	row += rowstride;
302	{	448	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	{	449	}
439	flags = new_flags;
440	changed++;
441	}
442		450
443	//fprintf (stderr, "flags = %lX, scale = %ux%u, align=%+d%+d\n",	451	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
444	// flags, h_scale, v_scale, h_align, v_align);	452	XDestroyImage (ximage);
445	return (changed > 0);	453	return true;
446	}	454	}
447		455
448	# ifdef HAVE_AFTERIMAGE
449	bool	456	bool
450	bgPixmap_t::render_asim (unsigned long background_flags)	457	rxvt_term::render_image (rxvt_image &image)
451	{	458	{
452	if (target == NULL)	459	GdkPixbuf *pixbuf = image.pixbuf;
		460	if (!pixbuf)
453	return false;	461	return false;
454		462
455	target->init_asv ();	463	bool need_blend = bg_flags & BG_IS_VALID;
456		464
457	ASImage *background = NULL;	465	if (need_blend
458	ARGB32 background_tint = TINT_LEAVE_SAME;	466	&& !(bg_flags & BG_HAS_RENDER))
		467	return false;
459		468
460	# ifdef ENABLE_TRANSPARENCY	469	GdkPixbuf *result;
461	if (background_flags)
462	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
463		470
464	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))	471	int image_width = gdk_pixbuf_get_width (pixbuf);
465	{	472	int image_height = gdk_pixbuf_get_height (pixbuf);
466	ShadingInfo as_shade;
467	as_shade.shading = (shade == 0) ? 100 : shade;
468		473
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;	474	int target_width = szHint.width;
495	int target_height = target->szHint.height;	475	int target_height = szHint.height;
496	int new_pmap_width = target_width;	476	int new_pmap_width = target_width;
497	int new_pmap_height = target_height;	477	int new_pmap_height = target_height;
498		478
499	int x = 0;	479	int x = 0;
500	int y = 0;	480	int y = 0;
501	int w = h_scale * target_width / 100;	481	int w = 0;
502	int h = v_scale * target_height / 100;	482	int h = 0;
503		483
504	TIMING_TEST_START (asim);	484	get_image_geometry (image, w, h, x, y);
505		485
506	if (original_asim)	486	if (!(image.flags & IM_ROOT_ALIGN)
		487	&& (x >= target_width
		488	|| y >= target_height
		489	|| x + w <= 0
		490	|| y + h <= 0))
		491	return false;
		492
		493	result = pixbuf;
		494
		495	if (w != image_width
		496	|| h != image_height)
		497	{
		498	result = gdk_pixbuf_scale_simple (pixbuf,
		499	w, h,
		500	GDK_INTERP_BILINEAR);
507	{	501	}
508	if (h_align == rootAlign || v_align == rootAlign)	502
		503	if (!result)
		504	return false;
		505
		506	bool ret = false;
		507
		508	XGCValues gcv;
		509	GC gc;
		510	Pixmap tmp_pixmap;
		511
		512	image_width = gdk_pixbuf_get_width (result);
		513	image_height = gdk_pixbuf_get_height (result);
		514
		515	if (need_blend)
		516	{
		517	tmp_pixmap = bg_pixmap;
		518	bg_pixmap = None;
		519	}
		520	else
		521	{
		522	if (image.flags & IM_TILE)
509	{	523	{
510	target->get_window_origin (x, y);	524	new_pmap_width = min (image_width, target_width);
511	x = -x;	525	new_pmap_height = min (image_height, target_height);
512	y = -y;
513	}	526	}
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	{	527	}
528	if (background)
529	{
530	new_pmap_width = background->width;
531	new_pmap_height = background->height;
532	result = background;
533		528
534	if (background_tint != TINT_LEAVE_SAME)	529	if (bg_pixmap == None
		530	|| bg_pmap_width != new_pmap_width
		531	|| bg_pmap_height != new_pmap_height)
		532	{
		533	if (bg_pixmap)
		534	XFreePixmap (dpy, bg_pixmap);
		535	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
		536	bg_pmap_width = new_pmap_width;
		537	bg_pmap_height = new_pmap_height;
		538	}
		539
		540	gcv.foreground = pix_colors[Color_bg];
		541	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
		542
		543	if (gc)
		544	{
		545	if (image.flags & IM_TILE)
535	{	546	{
536	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	547	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
537	target_width, target_height, background_tint,	548	pixbuf_to_pixmap (result, tile, gc,
538	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);	549	0, 0,
539	if (tmp)	550	0, 0,
540	result = tmp;	551	image_width, image_height);
541	}	552
		553	gcv.tile = tile;
		554	gcv.fill_style = FillTiled;
		555	gcv.ts_x_origin = x;
		556	gcv.ts_y_origin = y;
		557	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		558
		559	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		560	XFreePixmap (dpy, tile);
542	}	561	}
543	else	562	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	}	563	{
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	if (pixmap)
648	{
649	if (result == NULL
650	|| pmap_width != new_pmap_width
651	|| pmap_height != new_pmap_height
652	|| pmap_depth != target->depth)
653	{
654	XFreePixmap (target->dpy, pixmap);
655	pixmap = None;
656	}
657	}
658
659	if (result)
660	{
661	XGCValues gcv;
662	GC gc;
663
664	/* create Pixmap */
665	if (pixmap == None)
666	{
667	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
668	pmap_width = new_pmap_width;
669	pmap_height = new_pmap_height;
670	pmap_depth = target->depth;
671	}
672	/* fill with background color (if result's not completely overlapping it) */
673	gcv.foreground = target->pix_colors[Color_bg];
674	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
675
676	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;	564	int src_x, src_y, dst_x, dst_y;
677	int dst_width = result->width, dst_height = result->height;	565	int dst_width, dst_height;
678	if (background == NULL)	566
679	{
680	if (h_scale > 0) src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );	567	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
681	if (v_scale > 0) src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);	568	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
682		569
683	if (dst_x > 0 || dst_y > 0	570	if (dst_x > 0 || dst_y > 0
684	|| dst_x + dst_width < new_pmap_width	571	|| dst_x + dst_width < new_pmap_width
685	|| dst_y + dst_height < new_pmap_height)	572	|| dst_y + dst_height < new_pmap_height)
686	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	573	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		574
		575	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
		576	pixbuf_to_pixmap (result, bg_pixmap, gc,
		577	src_x, src_y,
		578	dst_x, dst_y,
		579	dst_width, dst_height);
687	}	580	}
688		581
689	/* put result on pixmap */	582	#if XRENDER
690	if (dst_x < new_pmap_width && dst_y < new_pmap_height)	583	if (need_blend)
691	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
692
693	if (result != background && result != original_asim)
694	destroy_asimage (&result);
695
696	XFreeGC (target->dpy, gc);
697	TIMING_TEST_PRINT_RESULT (asim);
698	}
699
700	if (background)
701	destroy_asimage (&background);
702
703	return true;
704	}
705	# endif /* HAVE_AFTERIMAGE */
706
707	bool
708	bgPixmap_t::set_file (const char *file)
709	{
710	assert (file);
711
712	if (*file)
713	{
714	if (const char *p = strchr (file, ';'))
715	{	584	{
716	size_t len = p - file;	585	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
717	char *f = rxvt_temp_buf<char> (len + 1);	586
718	memcpy (f, file, len);	587	Picture src = XRenderCreatePicture (dpy, tmp_pixmap, format, 0, 0);
719	f[len] = '\0';	588
720	file = f;	589	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
		590
		591	Picture mask = create_xrender_mask (dpy, vt, False, False);
		592
		593	XRenderColor mask_c;
		594
		595	mask_c.alpha = 0x8000;
		596	mask_c.red =
		597	mask_c.green =
		598	mask_c.blue = 0;
		599	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		600
		601	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
		602
		603	XRenderFreePicture (dpy, src);
		604	XRenderFreePicture (dpy, dst);
		605	XRenderFreePicture (dpy, mask);
721	}	606	}
		607	#endif
722		608
723	# ifdef HAVE_AFTERIMAGE	609	XFreeGC (dpy, gc);
724	if (!target->asimman)	610
725	target->asimman = create_generic_imageman (target->rs[Rs_path]);	611	ret = true;
726	original_asim = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	612	}
727	if (original_asim)	613
728	have_image = true;	614	if (result != pixbuf)
729	return have_image;	615	g_object_unref (result);
		616
		617	if (need_blend)
		618	XFreePixmap (dpy, tmp_pixmap);
		619
		620	return ret;
		621	}
		622	# endif /* HAVE_PIXBUF */
		623
		624	bool
		625	rxvt_image::set_file (const char *file)
		626	{
		627	if (!file || !*file)
		628	return false;
		629
		630	bool ret = false;
		631	const char *p = strchr (file, ';');
		632
		633	if (p)
		634	{
		635	size_t len = p - file;
		636	char *f = rxvt_temp_buf<char> (len + 1);
		637	memcpy (f, file, len);
		638	f[len] = '\0';
		639	file = f;
		640	}
		641
		642	# ifdef HAVE_PIXBUF
		643	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
		644	if (image)
		645	{
		646	if (pixbuf)
		647	g_object_unref (pixbuf);
		648	pixbuf = image;
		649	ret = true;
		650	}
730	# endif	651	# endif
		652
		653	if (ret)
731	}	654	{
		655	flags = IM_IS_SET | IM_IS_SIZE_SENSITIVE;
		656	h_scale = v_scale = defaultScale;
		657	h_align = v_align = defaultAlign;
732		658
		659	if (p)
		660	set_geometry (p + 1);
		661	}
		662
733	return false;	663	return ret;
734	}	664	}
735		665
736	# endif /* BG_IMAGE_FROM_FILE */	666	# endif /* BG_IMAGE_FROM_FILE */
737		667
738	# ifdef ENABLE_TRANSPARENCY	668	# ifdef ENABLE_TRANSPARENCY
739	bool	669	bool
740	bgPixmap_t::set_transparent ()	670	rxvt_term::bg_set_blur (const char *geom)
741	{	671	{
742	if (!(flags & isTransparent))	672	bool changed = false;
743	{
744	flags |= isTransparent;
745	return true;
746	}
747
748	return false;
749	}
750
751	bool
752	bgPixmap_t::set_blur_radius (const char *geom)
753	{
754	int changed = 0;
755	unsigned int hr, vr;	673	unsigned int hr, vr;
756	int junk;	674	int junk;
757	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	675	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
758		676
759	if (!(geom_flags&WidthValue))	677	if (!(geom_flags & WidthValue))
760	hr = 1;	678	hr = 1;
761	if (!(geom_flags&HeightValue))	679	if (!(geom_flags & HeightValue))
762	vr = hr;	680	vr = hr;
763		681
		682	min_it (hr, 128);
		683	min_it (vr, 128);
		684
764	if (h_blurRadius != hr)	685	if (h_blurRadius != hr)
765	{	686	{
766	++changed;	687	changed = true;
767	h_blurRadius = hr;	688	h_blurRadius = hr;
768	}	689	}
769		690
770	if (v_blurRadius != vr)	691	if (v_blurRadius != vr)
771	{	692	{
772	++changed;	693	changed = true;
773	v_blurRadius = vr;	694	v_blurRadius = vr;
774	}	695	}
775		696
776	if (v_blurRadius == 0 && h_blurRadius == 0)
777	flags &= ~blurNeeded;
778	else
779	flags |= blurNeeded;
780
781	return (changed>0);	697	return changed;
782	}	698	}
783		699
784	static inline unsigned long	700	bool
785	compute_tint_shade_flags (rxvt_color *tint, int shade)	701	rxvt_term::bg_set_tint (rxvt_color &new_tint)
786	{	702	{
787	unsigned long flags = 0;	703	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)
788	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
789	bool has_shade = (shade > 0 && shade < 100) || (shade > 100 && shade < 200);
790
791	if (tint)
792	{	704	{
		705	tint = new_tint;
		706	bg_flags |= BG_TINT_SET;
		707
		708	rgba c;
793	tint->get (c);	709	tint.get (c);
794	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)	710	if ((c.r <= 0x00ff || c.r >= 0xff00)
795	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)	711	&& (c.g <= 0x00ff || c.g >= 0xff00)
796	&& IS_COMPONENT_WHOLESOME (c.g)	712	&& (c.b <= 0x00ff || c.b >= 0xff00))
797	&& IS_COMPONENT_WHOLESOME (c.b))	713	bg_flags |= BG_TINT_BITAND;
798	flags |= bgPixmap_t::tintWholesome;	714	else
799	# undef IS_COMPONENT_WHOLESOME	715	bg_flags &= ~BG_TINT_BITAND;
800	}
801		716
802	if (has_shade)	717	return true;
803	flags |= bgPixmap_t::tintNeeded;
804	else if (tint)
805	{	718	}
806	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)	719
807	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))	720	return false;
		721	}
		722
		723	bool
		724	rxvt_term::bg_set_shade (const char *shade_str)
		725	{
		726	int new_shade = atoi (shade_str);
		727
		728	clamp_it (new_shade, -100, 200);
		729	if (new_shade < 0)
		730	new_shade = 200 - (100 + new_shade);
		731
		732	if (new_shade != shade)
		733	{
		734	shade = new_shade;
		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, int width, int height)
		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, 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
808	{	841	*/
809	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);
810	}	851	}
811	}	852	}
812		853	# if XRENDER
813	if (flags & bgPixmap_t::tintNeeded)	854	else if (bg_flags & BG_HAS_RENDER)
814	{	855	{
815	if (flags & bgPixmap_t::tintWholesome)	856	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
816	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	}
817	else	867	else
818	{	868	{
819	#if XFT	869	c.r = c.r * (200 - shade) / 100;
820	flags |= bgPixmap_t::tintServerSide;	870	c.g = c.g * (200 - shade) / 100;
821	#endif	871	c.b = c.b * (200 - shade) / 100;
822	}	872	}
823	}
824		873
825	return flags;	874	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
826	}
827		875
828	bool	876	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
829	bgPixmap_t::set_tint (rxvt_color &new_tint)	877
830	{	878	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
831	if (tint != new_tint)	879
832	{	880	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
833	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);	881
834	tint = new_tint;	882	XRenderColor mask_c;
835	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
836	return true;	909	ret = true;
837	}
838		910
839	return false;	911	XRenderFreePicture (dpy, mask_pic);
840	}	912	XRenderFreePicture (dpy, overlay_pic);
841		913	XRenderFreePicture (dpy, back_pic);
842	bool
843	bgPixmap_t::unset_tint ()
844	{
845	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
846
847	if (new_flags != (flags & tintFlags))
848	{	914	}
849	flags = (flags&~tintFlags)|new_flags;	915	# endif
850	return true;
851	}
852		916
853	return false;	917	return ret;
854	}	918	}
855		919
856	bool	920	/*
857	bgPixmap_t::set_shade (const char *shade_str)	921	* Builds a pixmap of the same size as the terminal window that contains
858	{
859	int new_shade = (shade_str) ? atoi (shade_str) : 0;
860
861	if (new_shade < 0 && new_shade > -100)
862	new_shade = 200 - (100 + new_shade);
863	else if (new_shade == 100)
864	new_shade = 0;
865
866	if (new_shade != shade)
867	{
868	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
869	shade = new_shade;
870	flags = (flags & (~tintFlags | tintSet)) | new_flags;
871	return true;
872	}
873
874	return false;
875	}
876
877	/* make_transparency_pixmap()
878	* Builds a pixmap sized the same as terminal window, with depth same as the root window
879	* 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
880	* our window.	923	* our window.
881	*/	924	*/
882	unsigned long	925	bool
883	bgPixmap_t::make_transparency_pixmap ()	926	rxvt_term::make_transparency_pixmap ()
884	{	927	{
885	unsigned long result = 0;	928	bool ret = false;
886
887	if (target == NULL)
888	return 0;
889		929
890	/* 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
891	* be always up-to-date, so let's use it :	931	* be always up-to-date, so let's use it :
892	*/	932	*/
893	Window root = target->display->root;
894	int screen = target->display->screen;	933	int screen = display->screen;
895	Display *dpy = target->dpy;	934	int root_depth = DefaultDepth (dpy, screen);
896	int root_width = DisplayWidth (dpy, screen);	935	int root_width = DisplayWidth (dpy, screen);
897	int root_height = DisplayHeight (dpy, screen);	936	int root_height = DisplayHeight (dpy, screen);
898	unsigned int root_pmap_width, root_pmap_height;	937	unsigned int root_pmap_width, root_pmap_height;
899	int window_width = target->szHint.width;	938	int window_width = szHint.width;
900	int window_height = target->szHint.height;	939	int window_height = szHint.height;
901	int sx, sy;	940	int sx, sy;
902	XGCValues gcv;	941	XGCValues gcv;
		942	GC gc;
903		943
904	TIMING_TEST_START (tp);	944	sx = target_x;
905	target->get_window_origin (sx, sy);	945	sy = target_y;
906		946
907	/* 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 : */
908	if (sx + window_width <= 0 || sy + window_height <= 0	948	if (sx + window_width <= 0 || sy + window_height <= 0
909	|| sx >= root_width || sy >= root_height)	949	|| sx >= root_width || sy >= root_height)
910	return 0;	950	return 0;
911		951
		952	// validate root pixmap and get its size
912	if (root_pixmap != None)	953	if (root_pixmap != None)
913	{	954	{
914	/* we want to validate the pixmap and get it's size at the same time : */	955	Window wdummy;
915	int junk;	956	int idummy;
916	unsigned int ujunk;	957	unsigned int udummy;
917	/* root pixmap may be bad - allow a error */	958
918	target->allowedxerror = -1;	959	allowedxerror = -1;
919		960
920	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))
921	root_pixmap = None;	962	root_pixmap = None;
922		963
923	target->allowedxerror = 0;	964	allowedxerror = 0;
924	}
925
926	Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth);
927	GC gc = NULL;
928
929	if (tiled_root_pmap == None) /* something really bad happened - abort */
930	return 0;
931
932	if (root_pixmap == None)
933	{	965	}
934	/* use tricks to obtain the root background image :*/
935	/* we want to create Overrideredirect window overlapping out window
936	with background type of Parent Relative and then grab it */
937	XSetWindowAttributes attr;
938	Window src;
939	bool success = false;
940		966
941	attr.background_pixmap = ParentRelative;	967	Pixmap recoded_root_pmap = root_pixmap;
942	attr.backing_store = Always;
943	attr.event_mask = ExposureMask;
944	attr.override_redirect = True;
945	src = XCreateWindow (dpy, root, sx, sy, window_width, window_height, 0,
946	CopyFromParent, CopyFromParent, CopyFromParent,
947	CWBackPixmap|CWBackingStore|CWOverrideRedirect|CWEventMask,
948	&attr);
949		968
950	if (src != None)	969	if (root_pixmap != None && root_depth != depth)
951	{	970	{
952	XEvent event;	971	#if XRENDER
953	int ev_count = 0;	972	if (bg_flags & BG_HAS_RENDER)
954	XGrabServer (dpy);
955	XMapRaised (dpy, src);
956	XSync (dpy, False);
957
958	/* XSync should get window where it's properly exposed,
959	* but to be on the safe side - let's check for the actual event to arrive : */
960	while (XCheckWindowEvent (dpy, src, ExposureMask, &event))
961	++ev_count;
962
963	if (ev_count > 0);
964	{
965	/* hooray! - we can grab the image! */
966	gc = XCreateGC (dpy, root, 0, NULL);
967	if (gc)
968	{
969	XCopyArea (dpy, src, tiled_root_pmap, gc, 0, 0, window_width, window_height, 0, 0);
970	success = true;
971	}
972	}
973
974	XDestroyWindow (dpy, src);
975	XUngrabServer (dpy);
976	//fprintf (stderr, "%s:%d: ev_count = %d\n", __FUNCTION__, __LINE__, ev_count);
977	}	973	{
		974	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
978		975
979	if (!success)	976	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
980	{	977	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
981	XFreePixmap (dpy, tiled_root_pmap);	978
982	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);
983	}	986	}
984	else	987	else
985	result |= transpPmapTiled;	988	#endif
986	}	989	recoded_root_pmap = None;
987	else
988	{	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
989	/* straightforward pixmap copy */	1006	/* straightforward pixmap copy */
		1007	while (sx < 0) sx += root_pmap_width;
		1008	while (sy < 0) sy += root_pmap_height;
		1009
990	gcv.tile = root_pixmap;	1010	gcv.tile = recoded_root_pmap;
991	gcv.fill_style = FillTiled;	1011	gcv.fill_style = FillTiled;
992
993	while (sx < 0) sx += (int)root_width;
994	while (sy < 0) sy += (int)root_height;
995
996	gcv.ts_x_origin = -sx;	1012	gcv.ts_x_origin = -sx;
997	gcv.ts_y_origin = -sy;	1013	gcv.ts_y_origin = -sy;
998	gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);	1014	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
999		1015
1000	if (gc)	1016	if (gc)
1001	{	1017	{
1002	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);	1018	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1003	result |= transpPmapTiled;	1019	ret = true;
		1020	bool need_blur = h_blurRadius && v_blurRadius;
		1021	bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
		1022
		1023	if (!(bg_flags & BG_CLIENT_RENDER))
		1024	{
		1025	if (need_blur)
		1026	{
		1027	if (blur_pixmap (bg_pixmap, window_width, window_height))
		1028	need_blur = false;
		1029	}
		1030	if (need_tint)
		1031	{
		1032	if (tint_pixmap (bg_pixmap, window_width, window_height))
		1033	need_tint = false;
		1034	}
		1035	if (need_tint)
		1036	{
		1037	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
		1038	if (ximage)
		1039	{
		1040	/* our own client-side tinting */
		1041	tint_ximage (ximage);
		1042
		1043	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
		1044	XDestroyImage (ximage);
		1045	}
		1046	}
		1047	} /* server side rendering completed */
		1048
		1049	XFreeGC (dpy, gc);
		1050	}
		1051
		1052	if (recoded_root_pmap != root_pixmap)
		1053	XFreePixmap (dpy, recoded_root_pmap);
		1054
		1055	return ret;
		1056	}
		1057
		1058	void
		1059	rxvt_term::bg_set_root_pixmap ()
		1060	{
		1061	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);
		1062	if (new_root_pixmap == None)
		1063	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
		1064
		1065	root_pixmap = new_root_pixmap;
		1066	}
		1067	# endif /* ENABLE_TRANSPARENCY */
		1068
		1069	bool
		1070	rxvt_term::bg_render ()
		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	if (make_transparency_pixmap ())
		1078	bg_flags |= BG_IS_VALID;
		1079	}
		1080	# endif
		1081
		1082	# ifdef BG_IMAGE_FROM_FILE
		1083	if (bg_image.flags & IM_IS_SET)
		1084	{
		1085	if (render_image (bg_image))
		1086	bg_flags |= BG_IS_VALID;
		1087	}
		1088	# endif
		1089
		1090	if (!(bg_flags & BG_IS_VALID))
		1091	{
		1092	if (bg_pixmap != None)
		1093	{
		1094	XFreePixmap (dpy, bg_pixmap);
		1095	bg_pixmap = None;
1004	}	1096	}
1005	}	1097	}
1006	TIMING_TEST_PRINT_RESULT (tp);
1007		1098
1008	if (tiled_root_pmap != None)	1099	scr_recolour (false);
1009	{	1100	bg_flags |= BG_NEEDS_REFRESH;
1010	if (!need_client_side_rendering ())
1011	{
1012	if ((flags & tintNeeded))
1013	{
1014	if (flags & tintWholesome)
1015	{
1016	/* In this case we can tint image server-side getting significant
1017	* performance improvements, as we eliminate XImage transfer
1018	*/
1019	gcv.foreground = Pixel (tint);
1020	gcv.function = GXand;
1021	gcv.fill_style = FillSolid;
1022	if (gc)
1023	XChangeGC (dpy, gc, GCFillStyle | GCForeground | GCFunction, &gcv);
1024	else
1025	gc = XCreateGC (dpy, root, GCFillStyle | GCForeground | GCFunction, &gcv);
1026	if (gc)
1027	{
1028	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1029	result |= transpPmapTinted;
1030	}
1031	}
1032	else
1033	{
1034	# if XFT
1035	Picture back_pic = 0;
1036	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1037		1101
1038	if (flags & tintSet)
1039	tint.get (c);
1040
1041	if (shade > 0 && shade < 100)
1042	{
1043	c.r = (c.r * shade) / 100;
1044	c.g = (c.g * shade) / 100;
1045	c.b = (c.b * shade) / 100;
1046	}
1047	else if (shade > 100 && shade < 200)
1048	{
1049	c.r = (c.r * (200 - shade)) / 100;
1050	c.g = (c.g * (200 - shade)) / 100;
1051	c.b = (c.b * (200 - shade)) / 100;
1052	}
1053
1054	XRenderPictFormat pf;
1055	pf.type = PictTypeDirect;
1056	pf.depth = 32;
1057	pf.direct.redMask = 0xff;
1058	pf.direct.greenMask = 0xff;
1059	pf.direct.blueMask = 0xff;
1060	pf.direct.alphaMask = 0xff;
1061
1062	XRenderPictFormat *solid_format = XRenderFindFormat (dpy,
1063	(PictFormatType|
1064	PictFormatDepth|
1065	PictFormatRedMask|
1066	PictFormatGreenMask|
1067	PictFormatBlueMask|
1068	PictFormatAlphaMask),
1069	&pf,
1070	0);
1071	XRenderPictFormat *root_format = XRenderFindVisualFormat (dpy, DefaultVisualOfScreen (ScreenOfDisplay (dpy, target->display->screen)));
1072	XRenderPictureAttributes pa ;
1073
1074	back_pic = XRenderCreatePicture (dpy, tiled_root_pmap, root_format, 0, &pa);
1075
1076	pa.repeat = True;
1077
1078	Pixmap overlay_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1079	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1080	XFreePixmap (dpy, overlay_pmap);
1081
1082	pa.component_alpha = True;
1083	Pixmap mask_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1084	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1085	XFreePixmap (dpy, mask_pmap);
1086
1087	if (mask_pic && overlay_pic && back_pic)
1088	{
1089	XRenderColor mask_c;
1090
1091	memset (&mask_c, (shade > 100) ? 0xFF : 0x0, sizeof (mask_c));
1092	mask_c.alpha = 0xffff;
1093	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1094
1095	mask_c.alpha = 0;
1096	mask_c.red = 0xffff - c.r;
1097	mask_c.green = 0xffff - c.g;
1098	mask_c.blue = 0xffff - c.b;
1099	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1100	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, window_width, window_height);
1101	result |= transpPmapTinted;
1102	}
1103
1104	XRenderFreePicture (dpy, mask_pic);
1105	XRenderFreePicture (dpy, overlay_pic);
1106	XRenderFreePicture (dpy, back_pic);
1107	# if DO_TIMING_TEST
1108	XSync (dpy, False);
1109	# endif
1110	# endif
1111	}
1112	}
1113	} /* server side rendering completed */
1114
1115	if (pixmap)
1116	XFreePixmap (dpy, pixmap);
1117
1118	pixmap = tiled_root_pmap;
1119	pmap_width = window_width;
1120	pmap_height = window_height;
1121	pmap_depth = root_depth;
1122	}
1123
1124	if (gc)
1125	XFreeGC (dpy, gc);
1126
1127	TIMING_TEST_PRINT_RESULT (tp);
1128
1129	return result;
1130	}
1131
1132	bool
1133	bgPixmap_t::set_root_pixmap ()
1134	{
1135	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1136	if (new_root_pixmap == None)
1137	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1138
1139	if (new_root_pixmap != root_pixmap)
1140	{
1141	root_pixmap = new_root_pixmap;
1142	return true;
1143	}
1144
1145	return false;
1146	}
1147	# endif /* ENABLE_TRANSPARENCY */
1148
1149	# ifndef HAVE_AFTERIMAGE
1150	static void ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm);
1151	# endif
1152
1153	bool
1154	bgPixmap_t::render ()
1155	{
1156	unsigned long background_flags = 0;
1157
1158	if (target == NULL)
1159	return false;
1160
1161	TIMING_TEST_START (tp);
1162
1163	invalidate ();
1164	# ifdef ENABLE_TRANSPARENCY
1165	if (flags & isTransparent)
1166	{
1167	/* we need to re-generate transparency pixmap in that case ! */
1168	background_flags = make_transparency_pixmap ();
1169	if (background_flags == 0)
1170	return false;
1171	else if ((background_flags & transpTransformations) == (flags & transpTransformations)
1172	&& pmap_depth == target->depth)
1173	flags = flags & ~isInvalid;
1174	}
1175	# endif
1176
1177	# ifdef HAVE_AFTERIMAGE
1178	if (original_asim
1179	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1180	{
1181	if (render_asim (background_flags))
1182	flags = flags & ~isInvalid;
1183	}
1184	# endif
1185
1186	XImage *result = NULL;
1187
1188	if (background_flags && (flags & isInvalid))
1189	{
1190	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1191
1192	# if !defined(HAVE_AFTERIMAGE) && !XFT
1193	/* our own client-side tinting */
1194	/* ATTENTION: We ASSUME that XFT will let us do all the tinting necessary server-side.
1195	This may need to be changed in need_client_side_rendering() logic is altered !!! */
1196	if (result != NULL && !(background_flags & transpPmapTinted) && (flags & tintNeeded))
1197	{
1198	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1199	if (flags & tintSet)
1200	tint.get (c);
1201	ShadeXImage (target, result, shade, c.r, c.g, c.b);
1202	}
1203	# endif
1204	}
1205
1206	if (result)
1207	{
1208	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1209
1210	if (gc)
1211	{
1212	if (/*pmap_depth != target->depth &&*/ pixmap != None)
1213	{
1214	XFreePixmap (target->dpy, pixmap);
1215	pixmap = None;
1216	}
1217
1218	if (pixmap == None)
1219	{
1220	pixmap = XCreatePixmap (target->dpy, target->vt, result->width, result->height, target->depth);
1221	pmap_width = result->width;
1222	pmap_height = result->height;
1223	pmap_depth = target->depth;
1224	}
1225
1226	if (pmap_depth != result->depth)
1227	{
1228	/* Bad Match error will ensue ! stupid X !!!! */
1229	if (result->depth == 24 && pmap_depth == 32)
1230	result->depth = 32;
1231	else if (result->depth == 32 && pmap_depth == 24)
1232	result->depth = 24;
1233	else
1234	{
1235	/* TODO: implement image recoding */
1236	}
1237	}
1238
1239	if (pmap_depth == result->depth)
1240	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1241
1242	XFreeGC (target->dpy, gc);
1243	flags = flags & ~isInvalid;
1244	}
1245
1246	XDestroyImage (result);
1247	}
1248
1249	if (flags & isInvalid)
1250	{
1251	if (pixmap != None)
1252	{
1253	XFreePixmap (target->dpy, pixmap);
1254	pixmap = None;
1255	}
1256	}
1257
1258	apply ();
1259
1260	XSync (target->dpy, False);
1261	valid_since = ev::now ();	1102	bg_valid_since = ev::now ();
1262
1263	TIMING_TEST_PRINT_RESULT (tp);
1264		1103
1265	return true;	1104	return true;
1266	}	1105	}
1267		1106
1268	bool
1269	bgPixmap_t::set_target (rxvt_term *new_target)
1270	{
1271	if (new_target)
1272	if (target != new_target)
1273	{
1274	target = new_target;
1275	# ifdef ENABLE_TRANSPARENCY
1276	root_depth = DefaultDepthOfScreen (ScreenOfDisplay (target->dpy, target->display->screen));
1277	# endif
1278	return true;
1279	}
1280
1281	return false;
1282	}
1283
1284	void	1107	void
1285	bgPixmap_t::apply ()	1108	rxvt_term::bg_init ()
1286	{	1109	{
1287	if (target)
1288	{
1289	flags &= ~isVtOrigin;
1290
1291	if (pixmap != None)
1292	{
1293	/* set target's background to pixmap */
1294	# ifdef ENABLE_TRANSPARENCY	1110	#ifdef ENABLE_TRANSPARENCY
1295	if (flags & isTransparent)	1111	shade = 100;
1296	{
1297	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1298	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1299
1300	if (target->scrollBar.win)
1301	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1302	}
1303	else
1304	# endif	1112	#endif
1305	{
1306	flags |= isVtOrigin;
1307	/* force old pixmap dereference in case it was transparent before :*/
1308	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1309	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1310	/* do we also need to set scrollbar's background here ? */
1311		1113
1312	if (target->scrollBar.win)	1114	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
1313	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);	1115	#if XRENDER
1314	}	1116	int major, minor;
1315	}	1117	if (XRenderQueryVersion (dpy, &major, &minor))
1316	else	1118	bg_flags |= BG_HAS_RENDER;
1317	{	1119	XFilters *filters = XRenderQueryFilters (dpy, vt);
1318	/* set target background to a pixel */	1120	if (filters)
1319	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1320	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);
1321	/* do we also need to set scrollbar's background here ? */
1322	if (target->scrollBar.win)
1323	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1324	}
1325
1326	/* don't want Expose on the parent or vt. It is better to use
1327	scr_touch or we get a great deal of flicker otherwise: */
1328	XClearWindow (target->dpy, target->parent[0]);
1329
1330	if (target->scrollBar.state && target->scrollBar.win)
1331	{
1332	target->scrollBar.state = STATE_IDLE;
1333	target->scrollBar.show (0);
1334	}
1335
1336	target->want_refresh = 1;
1337	flags |= hasChanged;
1338	}	1121	{
		1122	for (int i = 0; i < filters->nfilter; i++)
		1123	if (!strcmp (filters->filter[i], FilterConvolution))
		1124	bg_flags |= BG_HAS_RENDER_CONV;
		1125
		1126	XFree (filters);
		1127	}
		1128	#endif
1339	}	1129	}
1340		1130
1341	#endif /* HAVE_BG_PIXMAP */	1131	#endif /* HAVE_BG_PIXMAP */
1342		1132
1343	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) && !XFT	1133	#ifdef ENABLE_TRANSPARENCY
1344	/* taken from aterm-0.4.2 */	1134	/* based on code from aterm-0.4.2 */
1345		1135
1346	typedef uint32_t RUINT32T;
1347
1348	static void	1136	static inline void
1349	ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm)	1137	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1350	{	1138	{
		1139	for (int i = 0; i <= mask >> sh; i++)
		1140	{
		1141	uint32_t tmp;
		1142	tmp = i * high;
		1143	tmp += (mask >> sh) * low;
		1144	lookup[i] = (tmp / 0xffff) << sh;
		1145	}
		1146	}
		1147
		1148	void
		1149	rxvt_term::tint_ximage (XImage *ximage)
		1150	{
		1151	unsigned int size_r, size_g, size_b;
1351	int sh_r, sh_g, sh_b;	1152	int sh_r, sh_g, sh_b;
1352	RUINT32T mask_r, mask_g, mask_b;	1153	uint32_t mask_r, mask_g, mask_b;
1353	RUINT32T *lookup, *lookup_r, *lookup_g, *lookup_b;	1154	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1354	unsigned int lower_lim_r, lower_lim_g, lower_lim_b;	1155	unsigned short low;
1355	unsigned int upper_lim_r, upper_lim_g, upper_lim_b;	1156	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1356	int i;
1357		1157
1358	Visual *visual = term->visual;
1359
1360	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return ;	1158	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1361
1362	if (shade == 0)
1363	shade = 100;
1364		1159
1365	/* for convenience */	1160	/* for convenience */
1366	mask_r = visual->red_mask;	1161	mask_r = visual->red_mask;
1367	mask_g = visual->green_mask;	1162	mask_g = visual->green_mask;
1368	mask_b = visual->blue_mask;	1163	mask_b = visual->blue_mask;
1369		1164
1370	/* boring lookup table pre-initialization */	1165	/* boring lookup table pre-initialization */
1371	switch (srcImage->bits_per_pixel) {	1166	sh_r = ecb_ctz32 (mask_r);
1372	case 15:	1167	sh_g = ecb_ctz32 (mask_g);
1373	if ((mask_r != 0x7c00) ||	1168	sh_b = ecb_ctz32 (mask_b);
1374	(mask_g != 0x03e0) ||	1169
1375	(mask_b != 0x001f))	1170	size_r = mask_r >> sh_r;
		1171	size_g = mask_g >> sh_g;
		1172	size_b = mask_b >> sh_b;
		1173
		1174	if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1376	return;	1175	return;
1377	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32));	1176
		1177	lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1378	lookup_r = lookup;	1178	lookup_r = lookup;
1379	lookup_g = lookup+32;	1179	lookup_g = lookup + size_r;
1380	lookup_b = lookup+32+32;	1180	lookup_b = lookup + size_r + size_g;
1381	sh_r = 10;	1181
1382	sh_g = 5;	1182	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1383	sh_b = 0;	1183
1384	break;	1184	if (bg_flags & BG_TINT_SET)
1385	case 16:	1185	tint.get (c);
1386	if ((mask_r != 0xf800) ||
1387	(mask_g != 0x07e0) ||
1388	(mask_b != 0x001f))
1389	return;
1390	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32));
1391	lookup_r = lookup;
1392	lookup_g = lookup+32;
1393	lookup_b = lookup+32+64;
1394	sh_r = 11;
1395	sh_g = 5;
1396	sh_b = 0;
1397	break;
1398	case 24:
1399	if ((mask_r != 0xff0000) ||
1400	(mask_g != 0x00ff00) ||
1401	(mask_b != 0x0000ff))
1402	return;
1403	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1404	lookup_r = lookup;
1405	lookup_g = lookup+256;
1406	lookup_b = lookup+256+256;
1407	sh_r = 16;
1408	sh_g = 8;
1409	sh_b = 0;
1410	break;
1411	case 32:
1412	if ((mask_r != 0xff0000) ||
1413	(mask_g != 0x00ff00) ||
1414	(mask_b != 0x0000ff))
1415	return;
1416	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1417	lookup_r = lookup;
1418	lookup_g = lookup+256;
1419	lookup_b = lookup+256+256;
1420	sh_r = 16;
1421	sh_g = 8;
1422	sh_b = 0;
1423	break;
1424	default:
1425	return; /* we do not support this color depth */
1426	}
1427		1186
1428	/* prepare limits for color transformation (each channel is handled separately) */	1187	/* prepare limits for color transformation (each channel is handled separately) */
1429	if (shade < 0) {	1188	if (shade > 100)
1430	shade = -shade;
1431	if (shade < 0) shade = 0;
1432	if (shade > 100) shade = 100;
1433
1434	lower_lim_r = 65535-rm;
1435	lower_lim_g = 65535-gm;
1436	lower_lim_b = 65535-bm;
1437
1438	lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100);
1439	lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100);
1440	lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100);
1441
1442	upper_lim_r = upper_lim_g = upper_lim_b = 65535;
1443	} else {
1444	if (shade < 0) shade = 0;
1445	if (shade > 100) shade = 100;
1446
1447	lower_lim_r = lower_lim_g = lower_lim_b = 0;
1448
1449	upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100);
1450	upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100);
1451	upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100);
1452	}
1453
1454	/* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */
1455	if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000 ))
1456	{	1189	{
1457	unsigned int tmp;	1190	c.r = c.r * (200 - shade) / 100;
		1191	c.g = c.g * (200 - shade) / 100;
		1192	c.b = c.b * (200 - shade) / 100;
1458		1193
1459	tmp = lower_lim_r;	1194	low = 0xffff * (shade - 100) / 100;
1460	lower_lim_r = lower_lim_b;
1461	lower_lim_b = tmp;
1462
1463	tmp = upper_lim_r;
1464	upper_lim_r = upper_lim_b;
1465	upper_lim_b = tmp;
1466	}	1195	}
		1196	else
		1197	{
		1198	c.r = c.r * shade / 100;
		1199	c.g = c.g * shade / 100;
		1200	c.b = c.b * shade / 100;
		1201
		1202	low = 0;
		1203	}
1467		1204
1468	/* fill our lookup tables */	1205	/* fill our lookup tables */
1469	for (i = 0; i <= mask_r>>sh_r; i++)	1206	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1470	{	1207	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1471	RUINT32T tmp;	1208	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1472	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r));
1473	tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r);
1474	lookup_r[i] = (tmp/65535)<<sh_r;
1475	}
1476	for (i = 0; i <= mask_g>>sh_g; i++)
1477	{
1478	RUINT32T tmp;
1479	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g));
1480	tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g);
1481	lookup_g[i] = (tmp/65535)<<sh_g;
1482	}
1483	for (i = 0; i <= mask_b>>sh_b; i++)
1484	{
1485	RUINT32T tmp;
1486	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b));
1487	tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b);
1488	lookup_b[i] = (tmp/65535)<<sh_b;
1489	}
1490		1209
1491	/* apply table to input image (replacing colors by newly calculated ones) */	1210	/* apply table to input image (replacing colors by newly calculated ones) */
1492	switch (srcImage->bits_per_pixel)	1211	if (ximage->bits_per_pixel == 32
		1212	&& ximage->byte_order == host_byte_order)
1493	{	1213	{
1494	case 15:	1214	char *line = ximage->data;
1495	{	1215
1496	unsigned short *p1, *pf, *p, *pl;	1216	for (int y = 0; y < ximage->height; y++)
1497	p1 = (unsigned short *) srcImage->data;
1498	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1499	while (p1 < pf)
1500	{	1217	{
1501	p = p1;	1218	uint32_t *p = (uint32_t *)line;
1502	pl = p1 + srcImage->width;	1219	for (int x = 0; x < ximage->width; x++)
1503	for (; p < pl; p++)
1504	{	1220	{
1505	*p = lookup_r[(*p & 0x7c00)>>10] |	1221	*p = lookup_r[(*p & mask_r) >> sh_r] |
1506	lookup_g[(*p & 0x03e0)>> 5] |	1222	lookup_g[(*p & mask_g) >> sh_g] |
1507	lookup_b[(*p & 0x001f)];	1223	lookup_b[(*p & mask_b) >> sh_b];
		1224	p++;
		1225	}
		1226	line += ximage->bytes_per_line;
1508	}	1227	}
1509	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1510	}	1228	}
1511	break;	1229	else
1512	}
1513	case 16:
1514	{
1515	unsigned short *p1, *pf, *p, *pl;
1516	p1 = (unsigned short *) srcImage->data;
1517	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1518	while (p1 < pf)
1519	{	1230	{
1520	p = p1;	1231	for (int y = 0; y < ximage->height; y++)
1521	pl = p1 + srcImage->width;	1232	for (int x = 0; x < ximage->width; x++)
1522	for (; p < pl; p++)
1523	{	1233	{
1524	*p = lookup_r[(*p & 0xf800)>>11] |	1234	unsigned long pixel = XGetPixel (ximage, x, y);
1525	lookup_g[(*p & 0x07e0)>> 5] |	1235	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1526	lookup_b[(*p & 0x001f)];	1236	lookup_g[(pixel & mask_g) >> sh_g] |
		1237	lookup_b[(pixel & mask_b) >> sh_b];
		1238	XPutPixel (ximage, x, y, pixel);
1527	}	1239	}
1528	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1529	}	1240	}
1530	break;
1531	}
1532	case 24:
1533	{
1534	unsigned char *p1, *pf, *p, *pl;
1535	p1 = (unsigned char *) srcImage->data;
1536	pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1537	while (p1 < pf)
1538	{
1539	p = p1;
1540	pl = p1 + srcImage->width * 3;
1541	for (; p < pl; p += 3)
1542	{
1543	p[0] = lookup_r[(p[0] & 0xff0000)>>16];
1544	p[1] = lookup_r[(p[1] & 0x00ff00)>> 8];
1545	p[2] = lookup_r[(p[2] & 0x0000ff)];
1546	}
1547	p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line);
1548	}
1549	break;
1550	}
1551	case 32:
1552	{
1553	RUINT32T *p1, *pf, *p, *pl;
1554	p1 = (RUINT32T *) srcImage->data;
1555	pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1556
1557	while (p1 < pf)
1558	{
1559	p = p1;
1560	pl = p1 + srcImage->width;
1561	for (; p < pl; p++)
1562	{
1563	*p = lookup_r[(*p & 0xff0000)>>16] |
1564	lookup_g[(*p & 0x00ff00)>> 8] |
1565	lookup_b[(*p & 0x0000ff)] |
1566	(*p & ~0xffffff);
1567	}
1568	p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line);
1569	}
1570	break;
1571	}
1572	}
1573		1241
1574	free (lookup);	1242	free (lookup);
1575	}	1243	}
1576	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1244	#endif /* ENABLE_TRANSPARENCY */

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