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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.48 by sf-exg, Tue Aug 31 14:12:20 2010 UTC vs.
Revision 1.234 by sf-exg, Thu Jun 7 09:21:18 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	h_scale = v_scale = 0;
103	h_align = v_align = 0;
104	#endif
105	flags = 0;
106	pixmap = None;
107	valid_since = invalid_since = 0;
108	target = 0;
109	}
110		59
111	void	60	void
112	bgPixmap_t::destroy ()	61	rxvt_term::bg_destroy ()
113	{	62	{
114	#ifdef HAVE_AFTERIMAGE	63	# if BG_IMAGE_FROM_FILE
115	if (original_asim)	64	fimage.destroy ();
116	safe_asimage_destroy (original_asim);
117	#endif	65	# endif
118		66
119	if (pixmap && target)	67	if (bg_pixmap)
120	XFreePixmap (target->dpy, pixmap);	68	XFreePixmap (dpy, bg_pixmap);
121	}	69	}
122		70
123	bool	71	bool
124	bgPixmap_t::window_size_sensitive ()	72	rxvt_term::bg_set_position (int x, int y)
125	{	73	{
		74
		75	if (target_x != x
		76	|| target_y != y)
		77	{
		78	target_x = x;
		79	target_y = y;
		80	return true;
		81	}
		82	return false;
		83	}
		84
		85	bool
		86	rxvt_term::bg_window_size_sensitive ()
		87	{
126	# ifdef ENABLE_TRANSPARENCY	88	# if ENABLE_TRANSPARENCY
127	if (flags & isTransparent)	89	if (bg_flags & BG_IS_TRANSPARENT)
128	return true;	90	return true;
129	# endif	91	# endif
130		92
131	# ifdef BG_IMAGE_FROM_FILE	93	# if BG_IMAGE_FROM_FILE
132	# ifdef HAVE_AFTERIMAGE	94	if (fimage.flags & IM_IS_SET)
133	if (original_asim)
134	# endif
135	{	95	{
136	if (h_scale != 0 || v_scale != 0	96	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
137	|| h_align != 0 || v_align != 0)	97	|| fimage.width () > szHint.width
		98	|| fimage.height () > szHint.height)
138	return true;	99	return true;
139	}	100	}
140	# endif	101	# endif
141		102
142	return false;	103	return false;
143	}	104	}
144		105
145	bool	106	bool
146	bgPixmap_t::window_position_sensitive ()	107	rxvt_term::bg_window_position_sensitive ()
147	{	108	{
148	# ifdef ENABLE_TRANSPARENCY	109	# if ENABLE_TRANSPARENCY
149	if (flags & isTransparent)	110	if (bg_flags & BG_IS_TRANSPARENT)
150	return true;	111	return true;
151	# endif	112	# endif
152		113
153	# ifdef BG_IMAGE_FROM_FILE	114	# if BG_IMAGE_FROM_FILE
154	# ifdef HAVE_AFTERIMAGE	115	if (fimage.flags & IM_IS_SET)
155	if (original_asim)
156	# endif
157	{	116	{
158	if (h_align == rootAlign || v_align == rootAlign)	117	if (fimage.flags & IM_ROOT_ALIGN)
159	return true;	118	return true;
160	}	119	}
161	# endif	120	# endif
162		121
163	return false;	122	return false;
164	};
165
166	bool bgPixmap_t::need_client_side_rendering ()
167	{
168	# ifdef HAVE_AFTERIMAGE
169	if (original_asim)
170	return true;
171	# endif
172	# ifdef ENABLE_TRANSPARENCY
173	if (flags & isTransparent)
174	{
175	# ifdef HAVE_AFTERIMAGE // can't blur without libAI anyways
176	if ((flags & blurNeeded) && !(flags & blurServerSide))
177	return true;
178	# endif
179	if ((flags & tintNeeded) && !(flags & tintServerSide))
180	return true;
181	}
182	# endif
183	return false;
184	}	123	}
185		124
186	# ifdef BG_IMAGE_FROM_FILE	125	# if BG_IMAGE_FROM_FILE
187	static inline bool
188	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
189	{
190	if (geom_flags & flag)
191	{
192	if (new_value > 1000)
193	new_value = 1000;
194	if (new_value != scale)
195	{
196	scale = new_value;
197	return true;
198	}
199	}
200	return false;
201	}
202
203	static inline bool
204	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
205	{
206	if (geom_flags & flag)
207	{
208	if (new_value != bgPixmap_t::rootAlign)
209	{
210	if (new_value < -100)
211	new_value = -100;
212	else if (new_value > 200)
213	new_value = 200;
214	}
215	if (new_value != align)
216	{
217	align = new_value;
218	return true;
219	}
220	}
221	return false;
222	}
223
224	static inline int	126	static inline int
225	make_align_position (int align, int window_size, int image_size)	127	make_align_position (int align, int window_size, int image_size)
226	{	128	{
227	int diff = window_size - image_size;
228	int smaller = MIN (image_size,window_size);
229
230	if (align >= 0 && align <= 50)	129	if (align >= 0 && align <= 100)
231	return diff * align / 100;	130	return lerp (0, window_size - image_size, align);
232	else if (align > 50 && align <= 100)
233	return window_size - image_size - diff * (100 - align) / 100;
234	else if (align > 100 && align <= 200 )
235	return ((align - 100) * smaller / 100) + window_size - smaller;
236	else if (align > -100 && align < 0)	131	else if (align > 100)
237	return ((align + 100) * smaller / 100) - image_size;	132	return lerp (window_size - image_size, window_size, align - 100);
238	return 0;	133	else
		134	return lerp (-image_size, 0, align + 100);
239	}	135	}
240		136
241	static inline int	137	static inline int
242	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	138	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
243	{	139	{
244	int src_pos = 0;	140	int src_pos = 0;
245	dst_pos = 0;	141	dst_pos = pos;
246	dst_size = size;	142	dst_size = size;
247	if (pos < 0 && size > target_size)	143	if (pos < 0)
248	{	144	{
249	src_pos = -pos;	145	src_pos = -pos;
		146	dst_pos = 0;
250	dst_size += pos;	147	dst_size += pos;
251	}	148	}
252	else if (pos > 0)
253	dst_pos = pos;
254		149
255	if (dst_pos + dst_size > target_size)
256	dst_size = target_size - dst_pos;	150	min_it (dst_size, target_size - dst_pos);
257	return src_pos;	151	return src_pos;
258	}	152	}
259		153
260	bool	154	static void
261	bgPixmap_t::set_geometry (const char *geom)	155	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
262	{	156	{
		157	if (!strcasecmp (style, "tiled"))
		158	{
		159	flags = IM_TILE;
		160	w = h = noScale;
		161	x = y = 0;
		162	}
		163	else if (!strcasecmp (style, "aspect-stretched"))
		164	{
		165	flags = IM_KEEP_ASPECT;
		166	w = h = windowScale;
		167	x = y = centerAlign;
		168	}
		169	else if (!strcasecmp (style, "stretched"))
		170	{
		171	flags = 0;
		172	w = h = windowScale;
		173	x = y = centerAlign;
		174	}
		175	else if (!strcasecmp (style, "centered"))
		176	{
		177	flags = 0;
		178	w = h = noScale;
		179	x = y = centerAlign;
		180	}
		181	else if (!strcasecmp (style, "root-tiled"))
		182	{
		183	flags = IM_TILE|IM_ROOT_ALIGN;
		184	w = h = noScale;
		185	x = y = 0;
		186	}
		187	}
		188
		189	bool
		190	rxvt_image::set_geometry (const char *geom, bool update)
		191	{
		192	bool changed = false;
263	int geom_flags = 0, changed = 0;	193	int geom_flags = 0;
264	int x = 0, y = 0;	194	int x = h_align;
		195	int y = v_align;
265	unsigned int w = 0, h = 0;	196	unsigned int w = h_scale;
266	unsigned int n;	197	unsigned int h = v_scale;
267	unsigned long new_flags = (flags & (~geometryFlags));	198	uint8_t new_flags = 0;
268	const char *p;
269	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
270		199
271	if (geom == NULL)	200	if (geom == NULL)
272	return false;	201	return false;
273		202
274	char str[MAXLEN_GEOM];	203	if (geom[0])
		204	{
		205	char **arr = rxvt_strsplit (':', geom);
275		206
276	while (isspace(*geom)) ++geom;	207	for (int i = 0; arr[i]; i++)
277	if ((p = strchr (geom, ';')) == NULL)	208	{
278	p = strchr (geom, '\0');	209	if (!strncasecmp (arr[i], "style=", 6))
		210	{
		211	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		212	geom_flags = WidthValue|HeightValue|XValue|YValue;
		213	}
		214	else if (!strcasecmp (arr[i], "op=tile"))
		215	new_flags |= IM_TILE;
		216	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		217	new_flags |= IM_KEEP_ASPECT;
		218	else if (!strcasecmp (arr[i], "op=root-align"))
		219	new_flags |= IM_ROOT_ALIGN;
279		220
280	n = (p - geom);	221	// deprecated
281	if (n < MAXLEN_GEOM)	222	else if (!strcasecmp (arr[i], "tile"))
		223	{
		224	new_flags |= IM_TILE;
		225	w = h = noScale;
		226	geom_flags |= WidthValue|HeightValue;
		227	}
		228	else if (!strcasecmp (arr[i], "propscale"))
		229	{
		230	new_flags |= IM_KEEP_ASPECT;
		231	w = h = windowScale;
		232	geom_flags |= WidthValue|HeightValue;
		233	}
		234	else if (!strcasecmp (arr[i], "hscale"))
		235	{
		236	new_flags |= IM_TILE;
		237	w = windowScale;
		238	h = noScale;
		239	geom_flags |= WidthValue|HeightValue;
		240	}
		241	else if (!strcasecmp (arr[i], "vscale"))
		242	{
		243	new_flags |= IM_TILE;
		244	h = windowScale;
		245	w = noScale;
		246	geom_flags |= WidthValue|HeightValue;
		247	}
		248	else if (!strcasecmp (arr[i], "scale"))
		249	{
		250	w = h = windowScale;
		251	geom_flags |= WidthValue|HeightValue;
		252	}
		253	else if (!strcasecmp (arr[i], "auto"))
		254	{
		255	w = h = windowScale;
		256	x = y = centerAlign;
		257	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		258	}
		259	else if (!strcasecmp (arr[i], "root"))
		260	{
		261	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		262	w = h = noScale;
		263	geom_flags |= WidthValue|HeightValue;
		264	}
		265
		266	else
		267	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
		268	} /* done parsing ops */
		269
		270	rxvt_free_strsplit (arr);
282	{	271	}
283	char *ops;
284	new_flags |= geometrySet;
285		272
286	memcpy (str, geom, n);	273	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
287	str[n] = '\0';	274
288	if (str[0] == ':')	275	if (!update)
289	ops = &str[0];	276	{
290	else if (str[0] != 'x' && str[0] != 'X' && isalpha(str[0]))	277	if (!(geom_flags & XValue))
291	ops = &str[0];	278	x = y = defaultAlign;
		279	else if (!(geom_flags & YValue))
		280	y = x;
		281
		282	if (!(geom_flags & (WidthValue|HeightValue)))
		283	w = h = defaultScale;
		284	else if (!(geom_flags & HeightValue))
		285	h = w;
		286	else if (!(geom_flags & WidthValue))
		287	w = h;
		288	}
		289
		290	clamp_it (x, -100, 200);
		291	clamp_it (y, -100, 200);
		292
		293	if (flags != new_flags
		294	|| h_scale != w
		295	|| v_scale != h
		296	|| h_align != x
		297	|| v_align != y)
		298	{
		299	flags = new_flags;
		300	h_scale = w;
		301	v_scale = h;
		302	h_align = x;
		303	v_align = y;
		304	changed = true;
		305	}
		306
		307	if (is_size_sensitive ())
		308	flags |= IM_IS_SIZE_SENSITIVE;
		309	else
		310	flags &= ~IM_IS_SIZE_SENSITIVE;
		311
		312	return changed;
		313	}
		314
		315	void
		316	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
		317	{
		318	int image_width = image.width ();
		319	int image_height = image.height ();
		320	int target_width = szHint.width;
		321	int target_height = szHint.height;
		322	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		323	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
		324
		325	w = h_scale * target_width / 100;
		326	h = v_scale * target_height / 100;
		327
		328	if (image.flags & IM_KEEP_ASPECT)
		329	{
		330	float scale = (float)w / image_width;
		331	min_it (scale, (float)h / image_height);
		332	w = image_width * scale + 0.5;
		333	h = image_height * scale + 0.5;
		334	}
		335
		336	if (!w) w = image_width;
		337	if (!h) h = image_height;
		338
		339	if (image.flags & IM_ROOT_ALIGN)
		340	{
		341	x = -target_x;
		342	y = -target_y;
		343	}
		344	else
		345	{
		346	x = make_align_position (image.h_align, target_width, w);
		347	y = make_align_position (image.v_align, target_height, h);
		348	}
		349	}
		350
		351	# if HAVE_PIXBUF
		352	bool
		353	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
		354	int src_x, int src_y, int dst_x, int dst_y,
		355	unsigned int width, unsigned int height, bool argb)
		356	{
		357	XImage *ximage;
		358	char *line;
		359	int width_r, width_g, width_b, width_a;
		360	int sh_r, sh_g, sh_b, sh_a;
		361	uint32_t red_mask, green_mask, blue_mask, alpha_mask;
		362	int rowstride;
		363	int channels;
		364	unsigned char *row;
		365
		366	if (visual->c_class != TrueColor)
		367	return false;
		368
		369	if (argb)
		370	{
		371	red_mask = 0xff << 16;
		372	green_mask = 0xff << 8;
		373	blue_mask = 0xff;
		374	alpha_mask = 0xff << 24;
		375	}
		376	else
		377	{
		378	red_mask = visual->red_mask;
		379	green_mask = visual->green_mask;
		380	blue_mask = visual->blue_mask;
		381	#if XRENDER
		382	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		383	if (format)
		384	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
292	else	385	else
		386	#endif
		387	alpha_mask = 0;
		388	}
		389
		390	width_r = ecb_popcount32 (red_mask);
		391	width_g = ecb_popcount32 (green_mask);
		392	width_b = ecb_popcount32 (blue_mask);
		393	width_a = ecb_popcount32 (alpha_mask);
		394
		395	if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
		396	return false;
		397
		398	sh_r = ecb_ctz32 (red_mask);
		399	sh_g = ecb_ctz32 (green_mask);
		400	sh_b = ecb_ctz32 (blue_mask);
		401	sh_a = ecb_ctz32 (alpha_mask);
		402
		403	if (width > 32767 || height > 32767)
		404	return false;
		405
		406	ximage = XCreateImage (dpy, visual, argb ? 32 : depth, ZPixmap, 0, 0,
		407	width, height, 32, 0);
		408	if (!ximage)
		409	return false;
		410
		411	if (height > INT_MAX / ximage->bytes_per_line
		412	|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
		413	{
		414	XDestroyImage (ximage);
		415	return false;
		416	}
		417
		418	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		419
		420	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
		421	channels = gdk_pixbuf_get_n_channels (pixbuf);
		422	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
		423	line = ximage->data;
		424
		425	rgba c (0, 0, 0);
		426
		427	if (channels == 4 && alpha_mask == 0)
		428	{
		429	pix_colors[Color_bg].get (c);
		430	c.r >>= 8;
		431	c.g >>= 8;
		432	c.b >>= 8;
		433	}
		434
		435	for (int y = 0; y < height; y++)
		436	{
		437	for (int x = 0; x < width; x++)
293	{	438	{
294	char *tmp;	439	unsigned char *pixel = row + x * channels;
295	ops = strchr (str, ':');	440	uint32_t value;
296	if (ops != NULL)	441	unsigned char r, g, b, a;
		442
		443	if (channels == 4)
297	{	444	{
298	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);
299	*(++tmp) = '\0';
300	if (ops == tmp) ++ops;
301	}
302	}
303
304	if (ops > str || ops == NULL)
305	{
306	/* we have geometry string - let's handle it prior to applying ops */
307	geom_flags = XParseGeometry (str, &x, &y, &w, &h);
308
309	if ((geom_flags & XValue) && !(geom_flags & YValue))
310	{
311	y = x;	445	a = pixel[3];
312	geom_flags |= YValue;	446	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
313	}	447	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
314		448	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
315	if (flags & geometrySet)
316	{
317	/* new geometry is an adjustment to the old one ! */
318	if ((geom_flags & WidthValue) && (geom_flags & HeightValue))
319	{
320	if (w == 0 && h != 0)
321	{
322	w = h_scale;
323	h = (v_scale * h) / 100;
324	}
325	else if (h == 0 && w != 0)
326	{
327	w = (h_scale * w) / 100;
328	h = v_scale;
329	}
330	}
331	if (geom_flags & XValue)
332	{
333	if (str[0] != '=')
334	{
335	y += v_align;
336	x += h_align;
337	}
338	}
339	}
340	else /* setting up geometry from scratch */
341	{
342	if (!(geom_flags & XValue))
343	{
344	/* use default geometry - centered */
345	x = y = defaultAlign;
346	}
347	else if (!(geom_flags & YValue))
348	y = x;
349
350	if ((geom_flags & (WidthValue|HeightValue)) == 0)
351	{
352	/* use default geometry - scaled */
353	w = h = defaultScale;
354	}
355	else if (geom_flags & WidthValue)
356	{
357	if (!(geom_flags & HeightValue))
358	h = w;
359	}
360	else
361	w = h;
362	}
363	} /* done parsing geometry string */
364	else if (!(flags & geometrySet))
365	{
366	/* default geometry - scaled and centered */
367	x = y = defaultAlign;
368	w = h = defaultScale;
369	}
370
371	if (!(flags & geometrySet))
372	geom_flags |= WidthValue|HeightValue|XValue|YValue;
373
374	if (ops)
375	{
376	while (*ops)
377	{
378	while (*ops == ':' || isspace(*ops)) ++ops;
379
380	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)
381	if (CHECK_GEOM_OPS ("tile"))
382	{
383	w = h = noScale;
384	geom_flags |= WidthValue|HeightValue;
385	}
386	else if (CHECK_GEOM_OPS ("propscale"))
387	{
388	if (w == 0 && h == 0)
389	{
390	w = windowScale;
391	geom_flags |= WidthValue;
392	}
393	new_flags |= propScale;
394	}
395	else if (CHECK_GEOM_OPS ("hscale"))
396	{
397	if (w == 0) w = windowScale;
398
399	h = noScale;
400	geom_flags |= WidthValue|HeightValue;
401	}
402	else if (CHECK_GEOM_OPS ("vscale"))
403	{
404	if (h == 0) h = windowScale;
405
406	w = noScale;
407	geom_flags |= WidthValue|HeightValue;
408	}
409	else if (CHECK_GEOM_OPS ("scale"))
410	{
411	if (h == 0) h = windowScale;
412	if (w == 0) w = windowScale;
413
414	geom_flags |= WidthValue|HeightValue;
415	}
416	else if (CHECK_GEOM_OPS ("auto"))
417	{
418	w = h = windowScale;
419	x = y = centerAlign;
420	geom_flags |= WidthValue|HeightValue|XValue|YValue;
421	}
422	else if (CHECK_GEOM_OPS ("root"))
423	{
424	w = h = noScale;
425	x = y = rootAlign;
426	geom_flags |= WidthValue|HeightValue|XValue|YValue;
427	}
428	# undef CHECK_GEOM_OPS
429
430	while (*ops != ':' && *ops != '\0') ++ops;
431	} /* done parsing ops */
432	}
433
434	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) ++changed;
435	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) ++changed;
436	if (check_set_align_value (geom_flags, XValue, h_align, x)) ++changed;
437	if (check_set_align_value (geom_flags, YValue, v_align, y)) ++changed;
438	}
439
440	if (new_flags != flags)
441	{
442	flags = new_flags;
443	changed++;
444	}
445
446	//fprintf (stderr, "flags = %lX, scale = %ux%u, align=%+d%+d\n",
447	// flags, h_scale, v_scale, h_align, v_align);
448	return (changed > 0);
449	}
450
451	# ifdef HAVE_AFTERIMAGE
452	bool
453	bgPixmap_t::render_asim (unsigned long background_flags)
454	{
455	if (target == NULL)
456	return false;
457
458	target->init_asv ();
459
460	ASImage *background = NULL;
461	ARGB32 background_tint = TINT_LEAVE_SAME;
462
463	# ifdef ENABLE_TRANSPARENCY
464	if (background_flags)
465	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
466
467	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
468	{
469	ShadingInfo as_shade;
470	as_shade.shading = (shade == 0) ? 100 : shade;
471
472	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
473	if (flags & tintSet)
474	tint.get (c);
475	as_shade.tintColor.red = c.r;
476	as_shade.tintColor.green = c.g;
477	as_shade.tintColor.blue = c.b;
478
479	background_tint = shading2tint32 (&as_shade);
480	}
481
482	if (!(background_flags & transpPmapBlured) && (flags & blurNeeded) && background != NULL)
483	{
484	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
485	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
486	100, ASIMAGE_QUALITY_DEFAULT);
487	if (tmp)
488	{
489	destroy_asimage (&background);
490	background = tmp;
491	}
492	}
493	# endif
494
495	ASImage *result = 0;
496
497	int target_width = target->szHint.width;
498	int target_height = target->szHint.height;
499	int new_pmap_width = target_width;
500	int new_pmap_height = target_height;
501
502	int x = 0;
503	int y = 0;
504	int w = h_scale * target_width / 100;
505	int h = v_scale * target_height / 100;
506
507	TIMING_TEST_START (asim);
508
509	if (original_asim)
510	{
511	if (h_align == rootAlign || v_align == rootAlign)
512	{
513	target->get_window_origin (x, y);
514	x = -x;
515	y = -y;
516	}
517
518	if (h_align != rootAlign)
519	x = make_align_position (h_align, target_width, w > 0 ? w : (int)original_asim->width);
520
521	if (v_align != rootAlign)
522	y = make_align_position (v_align, target_height, h > 0 ? h : (int)original_asim->height);
523	}
524
525	if (!original_asim
526	|| x >= target_width
527	|| y >= target_height
528	|| (w > 0 && x + w <= 0)
529	|| (h > 0 && y + h <= 0))
530	{
531	if (background)
532	{
533	new_pmap_width = background->width;
534	new_pmap_height = background->height;
535	result = background;
536
537	if (background_tint != TINT_LEAVE_SAME)
538	{
539	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,
540	target_width, target_height, background_tint,
541	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
542	if (tmp)
543	result = tmp;
544	}
545	}
546	else
547	new_pmap_width = new_pmap_height = 0;
548	}
549	else
550	{
551	result = original_asim;
552
553	if ((w > 0 && w != original_asim->width)
554	|| (h > 0 && h != original_asim->height))
555	{
556	result = scale_asimage (target->asv, original_asim,
557	w > 0 ? w : original_asim->width,
558	h > 0 ? h : original_asim->height,
559	background ? ASA_ASImage : ASA_XImage,
560	100, ASIMAGE_QUALITY_DEFAULT);
561	}
562
563	if (background == NULL)
564	{
565	/* if tiling - pixmap has to be sized exactly as the image,
566	but there is no need to make it bigger than the window! */
567	if (h_scale == 0)
568	new_pmap_width = min (result->width, target_width);
569	if (v_scale == 0)
570	new_pmap_height = min (result->height, target_height);
571	/* we also need to tile our image in one or both directions */
572	if (h_scale == 0 || v_scale == 0)
573	{
574	ASImage *tmp = tile_asimage (target->asv, result,
575	(h_scale > 0) ? 0 : (int)result->width - x,
576	(v_scale > 0) ? 0 : (int)result->height - y,
577	new_pmap_width,
578	new_pmap_height,
579	TINT_LEAVE_SAME, ASA_XImage,
580	100, ASIMAGE_QUALITY_DEFAULT);
581	if (tmp)
582	{
583	if (result != original_asim)
584	destroy_asimage (&result);
585
586	result = tmp;
587	}
588	}
589	}
590	else
591	{
592	/* if blending background and image - pixmap has to be sized same as target window */
593	ASImageLayer *layers = create_image_layers (2);
594
595	layers[0].im = background;
596	layers[0].clip_width = target_width;
597	layers[0].clip_height = target_height;
598	layers[0].tint = background_tint;
599	layers[1].im = result;
600
601	if (w <= 0)
602	{
603	/* tile horizontally */
604	while (x > 0) x -= (int)result->width;
605	layers[1].dst_x = x;
606	layers[1].clip_width = result->width+target_width;
607	}	449	}
608	else	450	else
609	{	451	{
610	/* clip horizontally */	452	a = 0xff;
611	layers[1].dst_x = x;	453	r = pixel[0];
612	layers[1].clip_width = result->width;	454	g = pixel[1];
		455	b = pixel[2];
613	}	456	}
614		457
615	if (h <= 0)	458	value = ((r >> (8 - width_r)) << sh_r)
616	{	459	| ((g >> (8 - width_g)) << sh_g)
617	while (y > 0) y -= (int)result->height;	460	| ((b >> (8 - width_b)) << sh_b)
618	layers[1].dst_y = y;	461	| ((a >> (8 - width_a)) << sh_a);
619	layers[1].clip_height = result->height + target_height;	462
620	}	463	if (ximage->bits_per_pixel == 32)
		464	((uint32_t *)line)[x] = value;
621	else	465	else
622	{	466	XPutPixel (ximage, x, y, value);
623	layers[1].dst_y = y;
624	layers[1].clip_height = result->height;
625	}	467	}
626		468
627	if (target->rs[Rs_blendtype])	469	row += rowstride;
628	{	470	line += ximage->bytes_per_line;
629	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);	471	}
630	if (layers[1].merge_scanlines == NULL)
631	layers[1].merge_scanlines = alphablend_scanlines;
632	}
633		472
634	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,	473	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
635	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);	474	XDestroyImage (ximage);
		475	return true;
		476	}
636		477
637	if (tmp)	478	bool
638	{	479	rxvt_term::render_image (rxvt_image &image)
639	if (result != original_asim)	480	{
640	destroy_asimage (&result);	481	GdkPixbuf *pixbuf = image.pixbuf;
		482	if (!pixbuf)
		483	return false;
641		484
642	result = tmp;	485	bool need_blend = bg_flags & BG_IS_VALID;
643	}
644		486
645	free (layers);	487	if (need_blend
		488	&& !(display->flags & DISPLAY_HAS_RENDER))
		489	return false;
		490
		491	GdkPixbuf *result;
		492
		493	int image_width = gdk_pixbuf_get_width (pixbuf);
		494	int image_height = gdk_pixbuf_get_height (pixbuf);
		495
		496	int target_width = szHint.width;
		497	int target_height = szHint.height;
		498	int new_pmap_width = target_width;
		499	int new_pmap_height = target_height;
		500
		501	int x = 0;
		502	int y = 0;
		503	int w = 0;
		504	int h = 0;
		505
		506	get_image_geometry (image, w, h, x, y);
		507
		508	if (!(image.flags & IM_ROOT_ALIGN)
		509	&& (x >= target_width
		510	|| y >= target_height
		511	|| x + w <= 0
		512	|| y + h <= 0))
		513	return false;
		514
		515	result = pixbuf;
		516
		517	if (w != image_width
		518	|| h != image_height)
		519	{
		520	result = gdk_pixbuf_scale_simple (pixbuf,
		521	w, h,
		522	GDK_INTERP_BILINEAR);
		523	}
		524
		525	if (!result)
		526	return false;
		527
		528	bool ret = false;
		529
		530	XGCValues gcv;
		531	GC gc;
		532	Pixmap tmp_pixmap;
		533
		534	image_width = gdk_pixbuf_get_width (result);
		535	image_height = gdk_pixbuf_get_height (result);
		536
		537	if (need_blend)
		538	tmp_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, 32);
		539	else
		540	{
		541	if (image.flags & IM_TILE)
646	}	542	{
647	}	543	new_pmap_width = min (image_width, target_width);
648	TIMING_TEST_PRINT_RESULT (asim);	544	new_pmap_height = min (image_height, target_height);
		545	}
649		546
650	if (pixmap)	547	if (bg_pixmap == None
651	{
652	if (result == NULL
653	|| pmap_width != new_pmap_width	548	|| bg_pmap_width != new_pmap_width
654	|| pmap_height != new_pmap_height	549	|| bg_pmap_height != new_pmap_height)
655	|| pmap_depth != target->depth)
656	{
657	XFreePixmap (target->dpy, pixmap);
658	pixmap = None;
659	}	550	{
660	}	551	if (bg_pixmap)
661		552	XFreePixmap (dpy, bg_pixmap);
662	if (result)
663	{
664	XGCValues gcv;
665	GC gc;
666
667	/* create Pixmap */
668	if (pixmap == None)
669	{
670	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);	553	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
671	pmap_width = new_pmap_width;	554	bg_pmap_width = new_pmap_width;
672	pmap_height = new_pmap_height;	555	bg_pmap_height = new_pmap_height;
673	pmap_depth = target->depth;
674	}
675	/* fill with background color (if result's not completely overlapping it) */
676	gcv.foreground = target->pix_colors[Color_bg];
677	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
678
679	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
680	int dst_width = result->width, dst_height = result->height;
681	if (background == NULL)
682	{	556	}
		557
		558	tmp_pixmap = bg_pixmap;
		559	}
		560
		561	gcv.foreground = pix_colors[Color_bg];
		562	gc = XCreateGC (dpy, tmp_pixmap, GCForeground, &gcv);
		563
		564	if (gc)
		565	{
		566	if (image.flags & IM_TILE)
		567	{
		568	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, need_blend ? 32 : depth);
		569	pixbuf_to_pixmap (result, tile, gc,
		570	0, 0,
		571	0, 0,
		572	image_width, image_height, need_blend);
		573
		574	gcv.tile = tile;
		575	gcv.fill_style = FillTiled;
		576	gcv.ts_x_origin = x;
		577	gcv.ts_y_origin = y;
		578	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		579
		580	XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
		581	XFreePixmap (dpy, tile);
		582	}
		583	else
		584	{
		585	int src_x, src_y, dst_x, dst_y;
		586	int dst_width, dst_height;
		587
683	if (h_scale > 0) src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );	588	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
684	if (v_scale > 0) src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);	589	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
685		590
686	if (dst_x > 0 || dst_y > 0	591	if (dst_x > 0 || dst_y > 0
687	|| dst_x + dst_width < new_pmap_width	592	|| dst_x + dst_width < new_pmap_width
688	|| dst_y + dst_height < new_pmap_height)	593	|| dst_y + dst_height < new_pmap_height)
689	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);	594	XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
690	}
691		595
692	/* put result on pixmap */
693	if (dst_x < new_pmap_width && dst_y < new_pmap_height)	596	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
694	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);	597	pixbuf_to_pixmap (result, tmp_pixmap, gc,
695		598	src_x, src_y,
696	if (result != background && result != original_asim)	599	dst_x, dst_y,
697	destroy_asimage (&result);	600	dst_width, dst_height, need_blend);
698
699	XFreeGC (target->dpy, gc);
700	TIMING_TEST_PRINT_RESULT (asim);
701	}
702
703	if (background)
704	destroy_asimage (&background);
705
706	return true;
707	}
708	# endif /* HAVE_AFTERIMAGE */
709
710	bool
711	bgPixmap_t::set_file (const char *file)
712	{
713	assert (file);
714
715	if (*file)
716	{
717	if (const char *p = strchr (file, ';'))
718	{	601	}
719	size_t len = p - file;	602
720	char *f = rxvt_temp_buf<char> (len + 1);	603	if (image.need_blur ())
721	memcpy (f, file, len);	604	blur_pixmap (tmp_pixmap, new_pmap_width, new_pmap_height, need_blend, image.h_blurRadius, image.v_blurRadius);
722	f[len] = '\0';	605	if (image.need_tint ())
723	file = f;	606	tint_pixmap (tmp_pixmap, new_pmap_width, new_pmap_height, need_blend, image.tint, image.tint_set, image.shade);
		607
		608	#if XRENDER
		609	if (need_blend)
724	}	610	{
		611	XRenderPictFormat *argb_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
		612	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
725		613
726	# ifdef HAVE_AFTERIMAGE	614	Picture src = XRenderCreatePicture (dpy, tmp_pixmap, argb_format, 0, 0);
727	if (!target->asimman)	615
728	target->asimman = create_generic_imageman (target->rs[Rs_path]);	616	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
729	original_asim = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);	617
730	return original_asim;	618	Picture mask = create_xrender_mask (dpy, vt, False, False);
		619
		620	XRenderColor mask_c;
		621
		622	mask_c.alpha = image.alpha;
		623	mask_c.red =
		624	mask_c.green =
		625	mask_c.blue = 0;
		626	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		627
		628	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
		629
		630	XRenderFreePicture (dpy, src);
		631	XRenderFreePicture (dpy, dst);
		632	XRenderFreePicture (dpy, mask);
		633	}
		634	#endif
		635
		636	XFreeGC (dpy, gc);
		637
		638	ret = true;
		639	}
		640
		641	if (result != pixbuf)
		642	g_object_unref (result);
		643
		644	if (need_blend)
		645	XFreePixmap (dpy, tmp_pixmap);
		646
		647	return ret;
		648	}
		649	# endif /* HAVE_PIXBUF */
		650
		651	rxvt_image::rxvt_image ()
		652	{
		653	alpha = 0xffff;
		654	flags = 0;
		655	h_scale =
		656	v_scale = defaultScale;
		657	h_align =
		658	v_align = defaultAlign;
		659
		660	# if HAVE_PIXBUF
		661	pixbuf = 0;
731	# endif	662	# endif
732	}	663	}
733		664
		665	bool
		666	rxvt_image::set_file_geometry (const char *file)
		667	{
		668	if (!file || !*file)
734	return false;	669	return false;
		670
		671	const char *p = strchr (file, ';');
		672
		673	if (p)
		674	{
		675	size_t len = p - file;
		676	char *f = rxvt_temp_buf<char> (len + 1);
		677	memcpy (f, file, len);
		678	f[len] = '\0';
		679	file = f;
		680	}
		681
		682	bool ret = set_file (file);
		683	alpha = 0x8000;
		684	if (ret)
		685	set_geometry (p ? p + 1 : "");
		686	return ret;
		687	}
		688
		689	bool
		690	rxvt_image::set_file (const char *file)
		691	{
		692	bool ret = false;
		693
		694	# if HAVE_PIXBUF
		695	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
		696	if (image)
		697	{
		698	if (pixbuf)
		699	g_object_unref (pixbuf);
		700	pixbuf = image;
		701	ret = true;
		702	}
		703	# endif
		704
		705	if (ret)
		706	flags |= IM_IS_SET;
		707
		708	return ret;
735	}	709	}
736		710
737	# endif /* BG_IMAGE_FROM_FILE */	711	# endif /* BG_IMAGE_FROM_FILE */
738		712
739	# ifdef ENABLE_TRANSPARENCY
740	bool	713	bool
741	bgPixmap_t::set_transparent ()
742	{
743	if (!(flags & isTransparent))
744	{
745	flags |= isTransparent;
746	return true;
747	}
748
749	return false;
750	}
751
752	bool
753	bgPixmap_t::set_blur_radius (const char *geom)	714	image_effects::set_blur (const char *geom)
754	{	715	{
755	int changed = 0;	716	bool changed = false;
756	unsigned int hr, vr;	717	unsigned int hr, vr;
757	int junk;	718	int junk;
758	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	719	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
759		720
760	if (!(geom_flags&WidthValue))	721	if (!(geom_flags & WidthValue))
761	hr = 1;	722	hr = 1;
762	if (!(geom_flags&HeightValue))	723	if (!(geom_flags & HeightValue))
763	vr = hr;	724	vr = hr;
764		725
		726	min_it (hr, 128);
		727	min_it (vr, 128);
		728
765	if (h_blurRadius != hr)	729	if (h_blurRadius != hr)
766	{	730	{
767	++changed;	731	changed = true;
768	h_blurRadius = hr;	732	h_blurRadius = hr;
769	}	733	}
770		734
771	if (v_blurRadius != vr)	735	if (v_blurRadius != vr)
772	{	736	{
773	++changed;	737	changed = true;
774	v_blurRadius = vr;	738	v_blurRadius = vr;
775	}	739	}
776		740
777	if (v_blurRadius == 0 && h_blurRadius == 0)
778	flags &= ~blurNeeded;
779	else
780	flags |= blurNeeded;
781
782	return (changed>0);	741	return changed;
783	}	742	}
784		743
785	static inline unsigned long	744	bool
786	compute_tint_shade_flags (rxvt_color *tint, int shade)	745	image_effects::set_tint (const rxvt_color &new_tint)
787	{	746	{
788	unsigned long flags = 0;	747	if (!tint_set || tint != new_tint)
		748	{
		749	tint = new_tint;
		750	tint_set = true;
		751
		752	return true;
		753	}
		754
		755	return false;
		756	}
		757
		758	bool
		759	image_effects::set_shade (const char *shade_str)
		760	{
		761	int new_shade = atoi (shade_str);
		762
		763	clamp_it (new_shade, -100, 200);
		764	if (new_shade < 0)
		765	new_shade = 200 - (100 + new_shade);
		766
		767	if (new_shade != shade)
		768	{
		769	shade = new_shade;
		770	return true;
		771	}
		772
		773	return false;
		774	}
		775
		776	#if XRENDER
		777	static void
		778	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
		779	{
		780	double sigma = radius / 2.0;
		781	double scale = sqrt (2.0 * M_PI) * sigma;
		782	double sum = 0.0;
		783
		784	for (int i = 0; i < width; i++)
		785	{
		786	double x = i - width / 2;
		787	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
		788	sum += kernel[i];
		789	}
		790
		791	params[0] = XDoubleToFixed (width);
		792	params[1] = XDoubleToFixed (1);
		793
		794	for (int i = 0; i < width; i++)
		795	params[i+2] = XDoubleToFixed (kernel[i] / sum);
		796	}
		797	#endif
		798
		799	bool
		800	rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height, bool argb, int h_blurRadius, int v_blurRadius)
		801	{
		802	bool ret = false;
		803	#if XRENDER
		804	if (!(display->flags & DISPLAY_HAS_RENDER_CONV))
		805	return false;
		806
		807	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
		808	double *kernel = (double *)malloc (size * sizeof (double));
		809	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
		810
		811	XRenderPictureAttributes pa;
		812	XRenderPictFormat *format = argb ? XRenderFindStandardFormat (dpy, PictStandardARGB32)
		813	: XRenderFindVisualFormat (dpy, visual);
		814
		815	pa.repeat = RepeatPad;
		816	Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		817	Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
		818	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
		819	XFreePixmap (dpy, tmp);
		820
		821	if (kernel && params)
		822	{
		823	size = h_blurRadius * 2 + 1;
		824	get_gaussian_kernel (h_blurRadius, size, kernel, params);
		825
		826	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		827	XRenderComposite (dpy,
		828	PictOpSrc,
		829	src,
		830	None,
		831	dst,
		832	0, 0,
		833	0, 0,
		834	0, 0,
		835	width, height);
		836
		837	::swap (src, dst);
		838
		839	size = v_blurRadius * 2 + 1;
		840	get_gaussian_kernel (v_blurRadius, size, kernel, params);
		841	::swap (params[0], params[1]);
		842
		843	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
		844	XRenderComposite (dpy,
		845	PictOpSrc,
		846	src,
		847	None,
		848	dst,
		849	0, 0,
		850	0, 0,
		851	0, 0,
		852	width, height);
		853
		854	ret = true;
		855	}
		856
		857	free (kernel);
		858	free (params);
		859	XRenderFreePicture (dpy, src);
		860	XRenderFreePicture (dpy, dst);
		861	#endif
		862	return ret;
		863	}
		864
		865	bool
		866	rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height, bool argb, rxvt_color &tint, bool tint_set, int shade)
		867	{
		868	bool ret = false;
		869
789	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	870	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
790	bool has_shade = (shade > 0 && shade < 100) || (shade > 100 && shade < 200);
791		871
792	if (tint)	872	if (tint_set)
793	{
794	tint->get (c);	873	tint.get (c);
795	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)	874
796	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)	875	if (shade == 100
797	&& IS_COMPONENT_WHOLESOME (c.g)	876	&& (c.r <= 0x00ff || c.r >= 0xff00)
798	&& IS_COMPONENT_WHOLESOME (c.b))	877	&& (c.g <= 0x00ff || c.g >= 0xff00)
799	flags |= bgPixmap_t::tintWholesome;	878	&& (c.b <= 0x00ff || c.b >= 0xff00))
800	# undef IS_COMPONENT_WHOLESOME
801	}	879	{
		880	XGCValues gcv;
		881	GC gc;
802		882
803	if (has_shade)	883	/* In this case we can tint image server-side getting significant
804	flags |= bgPixmap_t::tintNeeded;	884	* performance improvements, as we eliminate XImage transfer
805	else if (tint)
806	{
807	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)
808	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))
809	{	885	*/
810	flags |= bgPixmap_t::tintNeeded;	886	gcv.foreground = Pixel (tint);
		887	gcv.function = GXand;
		888	gcv.fill_style = FillSolid;
		889	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
		890	if (gc)
811	}	891	{
812	}	892	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
813		893	ret = true;
814	if (flags & bgPixmap_t::tintNeeded)	894	XFreeGC (dpy, gc);
		895	}
815	{	896	}
816	if (flags & bgPixmap_t::tintWholesome)	897	# if XRENDER
817	flags |= bgPixmap_t::tintServerSide;	898	else if (display->flags & DISPLAY_HAS_RENDER)
		899	{
		900	if (shade <= 100)
		901	{
		902	c.r = c.r * shade / 100;
		903	c.g = c.g * shade / 100;
		904	c.b = c.b * shade / 100;
		905	}
818	else	906	else
819	{	907	{
820	#if XFT	908	c.r = c.r * (200 - shade) / 100;
821	flags |= bgPixmap_t::tintServerSide;	909	c.g = c.g * (200 - shade) / 100;
822	#endif	910	c.b = c.b * (200 - shade) / 100;
		911	}
		912
		913	XRenderPictFormat *format = argb ? XRenderFindStandardFormat (dpy, PictStandardARGB32)
		914	: XRenderFindVisualFormat (dpy, visual);
		915
		916	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
		917
		918	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
		919
		920	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
		921
		922	XRenderColor mask_c;
		923
		924	mask_c.alpha = 0xffff;
		925	mask_c.red =
		926	mask_c.green =
		927	mask_c.blue = 0;
		928	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
		929
		930	mask_c.alpha = 0;
		931	mask_c.red = 0xffff - c.r;
		932	mask_c.green = 0xffff - c.g;
		933	mask_c.blue = 0xffff - c.b;
		934	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
		935
		936	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
		937
		938	if (shade > 100)
823	}	939	{
824	}	940	mask_c.alpha = 0;
		941	mask_c.red =
		942	mask_c.green =
		943	mask_c.blue = 0xffff * (shade - 100) / 100;
		944	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
825		945
826	return flags;	946	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
827	}	947	}
828		948
829	bool
830	bgPixmap_t::set_tint (rxvt_color &new_tint)
831	{
832	if (tint != new_tint)
833	{
834	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
835	tint = new_tint;
836	flags = (flags & ~tintFlags) | new_flags | tintSet;
837	return true;	949	ret = true;
838	}
839		950
840	return false;	951	XRenderFreePicture (dpy, mask_pic);
841	}	952	XRenderFreePicture (dpy, overlay_pic);
842		953	XRenderFreePicture (dpy, back_pic);
843	bool
844	bgPixmap_t::unset_tint ()
845	{
846	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
847
848	if (new_flags != (flags & tintFlags))
849	{	954	}
850	flags = (flags&~tintFlags)|new_flags;	955	# endif
851	return true;
852	}
853		956
854	return false;	957	return ret;
855	}	958	}
856		959
857	bool	960	# if ENABLE_TRANSPARENCY
858	bgPixmap_t::set_shade (const char *shade_str)	961	/*
859	{	962	* Builds a pixmap of the same size as the terminal window that contains
860	int new_shade = (shade_str) ? atoi (shade_str) : 0;
861
862	if (new_shade < 0 && new_shade > -100)
863	new_shade = 200 - (100 + new_shade);
864	else if (new_shade == 100)
865	new_shade = 0;
866
867	if (new_shade != shade)
868	{
869	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
870	shade = new_shade;
871	flags = (flags & (~tintFlags | tintSet)) | new_flags;
872	return true;
873	}
874
875	return false;
876	}
877
878	/* make_transparency_pixmap()
879	* Builds a pixmap sized the same as terminal window, with depth same as the root window
880	* that pixmap contains tiled portion of the root pixmap that is supposed to be covered by	963	* the tiled portion of the root pixmap that is supposed to be covered by
881	* our window.	964	* our window.
882	*/	965	*/
883	unsigned long	966	bool
884	bgPixmap_t::make_transparency_pixmap ()	967	rxvt_term::render_root_image ()
885	{	968	{
886	unsigned long result = 0;	969	bool ret = false;
887
888	if (target == NULL)
889	return 0;
890		970
891	/* root dimensions may change from call to call - but Display structure should	971	/* root dimensions may change from call to call - but Display structure should
892	* be always up-to-date, so let's use it :	972	* be always up-to-date, so let's use it :
893	*/	973	*/
894	Window root = target->display->root;
895	int screen = target->display->screen;	974	int screen = display->screen;
896	Display *dpy = target->dpy;	975	int root_depth = DefaultDepth (dpy, screen);
897	int root_width = DisplayWidth (dpy, screen);	976	int root_width = DisplayWidth (dpy, screen);
898	int root_height = DisplayHeight (dpy, screen);	977	int root_height = DisplayHeight (dpy, screen);
899	unsigned int root_pmap_width, root_pmap_height;	978	unsigned int root_pmap_width, root_pmap_height;
900	int window_width = target->szHint.width;	979	int window_width = szHint.width;
901	int window_height = target->szHint.height;	980	int window_height = szHint.height;
902	int sx, sy;	981	int sx, sy;
903	XGCValues gcv;	982	XGCValues gcv;
		983	GC gc;
904		984
905	TIMING_TEST_START (tp);	985	sx = target_x;
906	target->get_window_origin (sx, sy);	986	sy = target_y;
907		987
908	/* check if we are outside of the visible part of the virtual screen : */	988	/* check if we are outside of the visible part of the virtual screen : */
909	if (sx + window_width <= 0 || sy + window_height <= 0	989	if (sx + window_width <= 0 || sy + window_height <= 0
910	|| sx >= root_width || sy >= root_height)	990	|| sx >= root_width || sy >= root_height)
911	return 0;	991	return 0;
912		992
		993	// validate root pixmap and get its size
913	if (root_pixmap != None)	994	if (root_pixmap != None)
914	{	995	{
915	/* we want to validate the pixmap and get it's size at the same time : */	996	Window wdummy;
916	int junk;	997	int idummy;
917	unsigned int ujunk;	998	unsigned int udummy;
918	/* root pixmap may be bad - allow a error */	999
919	target->allowedxerror = -1;	1000	allowedxerror = -1;
920		1001
921	if (!XGetGeometry (dpy, root_pixmap, &root, &junk, &junk, &root_pmap_width, &root_pmap_height, &ujunk, &ujunk))	1002	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))
922	root_pixmap = None;	1003	root_pixmap = None;
923		1004
924	target->allowedxerror = 0;	1005	allowedxerror = 0;
		1006	}
		1007
		1008	Pixmap recoded_root_pmap = root_pixmap;
		1009
		1010	if (root_pixmap != None && root_depth != depth)
925	}	1011	{
		1012	#if XRENDER
		1013	if (display->flags & DISPLAY_HAS_RENDER)
		1014	{
		1015	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
926		1016
927	Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth);	1017	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
928	GC gc = NULL;	1018	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
929		1019
930	if (tiled_root_pmap == None) /* something really bad happened - abort */	1020	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
		1021	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);
		1022
		1023	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);
		1024
		1025	XRenderFreePicture (dpy, src);
		1026	XRenderFreePicture (dpy, dst);
		1027	}
		1028	else
		1029	#endif
		1030	recoded_root_pmap = None;
		1031	}
		1032
		1033	if (recoded_root_pmap == None)
931	return 0;	1034	return 0;
932		1035
933	if (root_pixmap == None)	1036	if (bg_pixmap == None
		1037	|| bg_pmap_width != window_width
		1038	|| bg_pmap_height != window_height)
		1039	{
		1040	if (bg_pixmap)
		1041	XFreePixmap (dpy, bg_pixmap);
		1042	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
		1043	bg_pmap_width = window_width;
		1044	bg_pmap_height = window_height;
934	{	1045	}
935	/* use tricks to obtain the root background image :*/
936	/* we want to create Overrideredirect window overlapping out window
937	with background type of Parent Relative and then grab it */
938	XSetWindowAttributes attr;
939	Window src;
940	bool success = false;
941		1046
942	attr.background_pixmap = ParentRelative;	1047	/* straightforward pixmap copy */
943	attr.backing_store = Always;	1048	while (sx < 0) sx += root_pmap_width;
944	attr.event_mask = ExposureMask;	1049	while (sy < 0) sy += root_pmap_height;
945	attr.override_redirect = True;
946	src = XCreateWindow (dpy, root, sx, sy, window_width, window_height, 0,
947	CopyFromParent, CopyFromParent, CopyFromParent,
948	CWBackPixmap|CWBackingStore|CWOverrideRedirect|CWEventMask,
949	&attr);
950		1050
951	if (src != None)	1051	gcv.tile = recoded_root_pmap;
		1052	gcv.fill_style = FillTiled;
		1053	gcv.ts_x_origin = -sx;
		1054	gcv.ts_y_origin = -sy;
		1055	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
		1056
		1057	if (gc)
		1058	{
		1059	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
		1060	ret = true;
		1061	bool need_blur = root_effects.need_blur ();
		1062	bool need_tint = root_effects.need_tint ();
		1063
		1064	if (need_blur)
		1065	{
		1066	if (blur_pixmap (bg_pixmap, window_width, window_height, false,
		1067	root_effects.h_blurRadius, root_effects.v_blurRadius))
		1068	need_blur = false;
952	{	1069	}
953	XEvent event;	1070	if (need_tint)
954	int ev_count = 0;	1071	{
955	XGrabServer (dpy);	1072	if (tint_pixmap (bg_pixmap, window_width, window_height, false,
956	XMapRaised (dpy, src);	1073	root_effects.tint, root_effects.tint_set, root_effects.shade))
957	XSync (dpy, False);	1074	need_tint = false;
958		1075	}
959	/* XSync should get window where it's properly exposed,	1076	if (need_tint)
960	* but to be on the safe side - let's check for the actual event to arrive : */	1077	{
961	while (XCheckWindowEvent (dpy, src, ExposureMask, &event))	1078	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
962	++ev_count;	1079	if (ximage)
963
964	if (ev_count > 0);
965	{	1080	{
966	/* hooray! - we can grab the image! */	1081	/* our own client-side tinting */
967	gc = XCreateGC (dpy, root, 0, NULL);	1082	tint_ximage (ximage, root_effects.tint, root_effects.tint_set, root_effects.shade);
968	if (gc)	1083
969	{	1084	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
970	XCopyArea (dpy, src, tiled_root_pmap, gc, 0, 0, window_width, window_height, 0, 0);	1085	XDestroyImage (ximage);
971	success = true;
972	}
973	}	1086	}
974
975	XDestroyWindow (dpy, src);
976	XUngrabServer (dpy);
977	//fprintf (stderr, "%s:%d: ev_count = %d\n", __FUNCTION__, __LINE__, ev_count);
978	}
979
980	if (!success)
981	{	1087	}
982	XFreePixmap (dpy, tiled_root_pmap);
983	tiled_root_pmap = None;
984	}
985	else
986	result |= transpPmapTiled;
987	}
988	else
989	{
990	/* straightforward pixmap copy */
991	gcv.tile = root_pixmap;
992	gcv.fill_style = FillTiled;
993		1088
994	while (sx < 0) sx += (int)root_width;
995	while (sy < 0) sy += (int)root_height;
996
997	gcv.ts_x_origin = -sx;
998	gcv.ts_y_origin = -sy;
999	gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1000
1001	if (gc)
1002	{
1003	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1004	result |= transpPmapTiled;
1005	}
1006	}
1007	TIMING_TEST_PRINT_RESULT (tp);
1008
1009	if (tiled_root_pmap != None)
1010	{
1011	if (!need_client_side_rendering ())
1012	{
1013	if ((flags & tintNeeded))
1014	{
1015	if (flags & tintWholesome)
1016	{
1017	/* In this case we can tint image server-side getting significant
1018	* performance improvements, as we eliminate XImage transfer
1019	*/
1020	gcv.foreground = Pixel (tint);
1021	gcv.function = GXand;
1022	gcv.fill_style = FillSolid;
1023	if (gc)
1024	XChangeGC (dpy, gc, GCFillStyle | GCForeground | GCFunction, &gcv);
1025	else
1026	gc = XCreateGC (dpy, root, GCFillStyle | GCForeground | GCFunction, &gcv);
1027	if (gc)
1028	{
1029	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1030	result |= transpPmapTinted;
1031	}
1032	}
1033	else
1034	{
1035	# if XFT
1036	Picture back_pic = 0;
1037	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1038
1039	if (flags & tintSet)
1040	tint.get (c);
1041
1042	if (shade > 0 && shade < 100)
1043	{
1044	c.r = (c.r * shade) / 100;
1045	c.g = (c.g * shade) / 100;
1046	c.b = (c.b * shade) / 100;
1047	}
1048	else if (shade > 100 && shade < 200)
1049	{
1050	c.r = (c.r * (200 - shade)) / 100;
1051	c.g = (c.g * (200 - shade)) / 100;
1052	c.b = (c.b * (200 - shade)) / 100;
1053	}
1054
1055	XRenderPictFormat pf;
1056	pf.type = PictTypeDirect;
1057	pf.depth = 32;
1058	pf.direct.redMask = 0xff;
1059	pf.direct.greenMask = 0xff;
1060	pf.direct.blueMask = 0xff;
1061	pf.direct.alphaMask = 0xff;
1062
1063	XRenderPictFormat *solid_format = XRenderFindFormat (dpy,
1064	(PictFormatType|
1065	PictFormatDepth|
1066	PictFormatRedMask|
1067	PictFormatGreenMask|
1068	PictFormatBlueMask|
1069	PictFormatAlphaMask),
1070	&pf,
1071	0);
1072	XRenderPictFormat *root_format = XRenderFindVisualFormat (dpy, DefaultVisualOfScreen (ScreenOfDisplay (dpy, target->display->screen)));
1073	XRenderPictureAttributes pa ;
1074
1075	back_pic = XRenderCreatePicture (dpy, tiled_root_pmap, root_format, 0, &pa);
1076
1077	pa.repeat = True;
1078
1079	Pixmap overlay_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1080	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1081	XFreePixmap (dpy, overlay_pmap);
1082
1083	pa.component_alpha = True;
1084	Pixmap mask_pmap = XCreatePixmap (dpy, root, 1, 1, 32);
1085	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1086	XFreePixmap (dpy, mask_pmap);
1087
1088	if (mask_pic && overlay_pic && back_pic)
1089	{
1090	XRenderColor mask_c;
1091
1092	memset (&mask_c, (shade > 100) ? 0xFF : 0x0, sizeof (mask_c));
1093	mask_c.alpha = 0xffff;
1094	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1095
1096	mask_c.alpha = 0;
1097	mask_c.red = 0xffff - c.r;
1098	mask_c.green = 0xffff - c.g;
1099	mask_c.blue = 0xffff - c.b;
1100	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1101	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, window_width, window_height);
1102	result |= transpPmapTinted;
1103	}
1104
1105	XRenderFreePicture (dpy, mask_pic);
1106	XRenderFreePicture (dpy, overlay_pic);
1107	XRenderFreePicture (dpy, back_pic);
1108	# if DO_TIMING_TEST
1109	XSync (dpy, False);
1110	# endif
1111	# endif
1112	}
1113	}
1114	} /* server side rendering completed */
1115
1116	if (pixmap)
1117	XFreePixmap (dpy, pixmap);
1118
1119	pixmap = tiled_root_pmap;
1120	pmap_width = window_width;
1121	pmap_height = window_height;
1122	pmap_depth = root_depth;
1123	}
1124
1125	if (gc)
1126	XFreeGC (dpy, gc);	1089	XFreeGC (dpy, gc);
		1090	}
1127		1091
1128	TIMING_TEST_PRINT_RESULT (tp);	1092	if (recoded_root_pmap != root_pixmap)
		1093	XFreePixmap (dpy, recoded_root_pmap);
1129		1094
1130	return result;	1095	return ret;
1131	}	1096	}
1132		1097
1133	bool	1098	void
1134	bgPixmap_t::set_root_pixmap ()	1099	rxvt_term::bg_set_root_pixmap ()
1135	{	1100	{
1136	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);	1101	Pixmap new_root_pixmap = display->get_pixmap_property (xa[XA_XROOTPMAP_ID]);
1137	if (new_root_pixmap == None)	1102	if (new_root_pixmap == None)
1138	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);	1103	new_root_pixmap = display->get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1139		1104
1140	if (new_root_pixmap != root_pixmap)
1141	{
1142	root_pixmap = new_root_pixmap;	1105	root_pixmap = new_root_pixmap;
1143	return true;
1144	}
1145
1146	return false;
1147	}	1106	}
1148	# endif /* ENABLE_TRANSPARENCY */	1107	# endif /* ENABLE_TRANSPARENCY */
1149		1108
1150	# ifndef HAVE_AFTERIMAGE	1109	void
1151	static void ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm);	1110	rxvt_term::bg_render ()
		1111	{
		1112	bg_invalidate ();
		1113	# if ENABLE_TRANSPARENCY
		1114	if (bg_flags & BG_IS_TRANSPARENT)
		1115	{
		1116	/* we need to re-generate transparency pixmap in that case ! */
		1117	if (render_root_image ())
		1118	bg_flags |= BG_IS_VALID;
		1119	}
1152	# endif	1120	# endif
1153		1121
1154	bool	1122	# if BG_IMAGE_FROM_FILE
1155	bgPixmap_t::render ()	1123	if (fimage.flags & IM_IS_SET)
1156	{
1157	unsigned long background_flags = 0;
1158
1159	if (target == NULL)
1160	return false;
1161
1162	TIMING_TEST_START (tp);
1163
1164	invalidate ();
1165	# ifdef ENABLE_TRANSPARENCY
1166	if (flags & isTransparent)
1167	{	1124	{
1168	/* we need to re-generate transparency pixmap in that case ! */	1125	if (render_image (fimage))
1169	background_flags = make_transparency_pixmap ();	1126	bg_flags |= BG_IS_VALID;
1170	if (background_flags == 0)
1171	return false;
1172	else if ((background_flags & transpTransformations) == (flags & transpTransformations)
1173	&& pmap_depth == target->depth)
1174	flags = flags & ~isInvalid;
1175	}	1127	}
1176	# endif	1128	# endif
1177		1129
1178	# ifdef HAVE_AFTERIMAGE	1130	if (!(bg_flags & BG_IS_VALID))
1179	if (original_asim
1180	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1181	{
1182	if (render_asim (background_flags))
1183	flags = flags & ~isInvalid;
1184	}	1131	{
1185	# endif
1186
1187	XImage *result = NULL;
1188
1189	if (background_flags && (flags & isInvalid))
1190	{
1191	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1192
1193	# if !defined(HAVE_AFTERIMAGE) && !XFT
1194	/* our own client-side tinting */
1195	/* ATTENTION: We ASSUME that XFT will let us do all the tinting necessary server-side.
1196	This may need to be changed in need_client_side_rendering() logic is altered !!! */
1197	if (result != NULL && !(background_flags & transpPmapTinted) && (flags & tintNeeded))
1198	{
1199	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1200	if (flags & tintSet)
1201	tint.get (c);
1202	ShadeXImage (target, result, shade, c.r, c.g, c.b);
1203	}
1204	# endif
1205	}
1206
1207	if (result)
1208	{
1209	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1210
1211	if (gc)
1212	{
1213	if (/*pmap_depth != target->depth &&*/ pixmap != None)
1214	{
1215	XFreePixmap (target->dpy, pixmap);
1216	pixmap = None;
1217	}
1218
1219	if (pixmap == None)
1220	{
1221	pixmap = XCreatePixmap (target->dpy, target->vt, result->width, result->height, target->depth);
1222	pmap_width = result->width;
1223	pmap_height = result->height;
1224	pmap_depth = target->depth;
1225	}
1226
1227	if (pmap_depth != result->depth)
1228	{
1229	/* Bad Match error will ensue ! stupid X !!!! */
1230	if (result->depth == 24 && pmap_depth == 32)
1231	result->depth = 32;
1232	else if (result->depth == 32 && pmap_depth == 24)
1233	result->depth = 24;
1234	else
1235	{
1236	/* TODO: implement image recoding */
1237	}
1238	}
1239
1240	if (pmap_depth == result->depth)
1241	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1242
1243	XFreeGC (target->dpy, gc);
1244	flags = flags & ~isInvalid;
1245	}
1246
1247	XDestroyImage (result);
1248	}
1249
1250	if (flags & isInvalid)
1251	{
1252	if (pixmap != None)	1132	if (bg_pixmap != None)
1253	{	1133	{
1254	XFreePixmap (target->dpy, pixmap);	1134	XFreePixmap (dpy, bg_pixmap);
1255	pixmap = None;	1135	bg_pixmap = None;
1256	}	1136	}
1257	}	1137	}
1258		1138
1259	apply ();	1139	scr_recolour (false);
		1140	bg_flags |= BG_NEEDS_REFRESH;
1260		1141
1261	XSync (target->dpy, False);
1262	valid_since = ev::now ();	1142	bg_valid_since = ev::now ();
1263
1264	TIMING_TEST_PRINT_RESULT (tp);
1265
1266	return true;
1267	}
1268
1269	bool
1270	bgPixmap_t::set_target (rxvt_term *new_target)
1271	{
1272	if (new_target)
1273	if (target != new_target)
1274	{
1275	target = new_target;
1276	# ifdef ENABLE_TRANSPARENCY
1277	root_depth = DefaultDepthOfScreen (ScreenOfDisplay (target->dpy, target->display->screen));
1278	# endif
1279	return true;
1280	}
1281
1282	return false;
1283	}	1143	}
1284		1144
1285	void	1145	void
1286	bgPixmap_t::apply ()	1146	rxvt_term::bg_init ()
1287	{	1147	{
1288	if (target)	1148	#if BG_IMAGE_FROM_FILE
		1149	if (rs[Rs_backgroundPixmap])
		1150	{
		1151	if (fimage.set_file_geometry (rs[Rs_backgroundPixmap])
		1152	&& !bg_window_position_sensitive ())
		1153	update_background ();
1289	{	1154	}
1290	flags &= ~isVtOrigin;
1291
1292	if (pixmap != None)
1293	{
1294	/* set target's background to pixmap */
1295	# ifdef ENABLE_TRANSPARENCY
1296	if (flags & isTransparent)
1297	{
1298	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1299	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1300
1301	if (target->scrollBar.win)
1302	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1303	}
1304	else
1305	# endif	1155	#endif
1306	{
1307	flags |= isVtOrigin;
1308	/* force old pixmap dereference in case it was transparent before :*/
1309	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1310	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1311	/* do we also need to set scrollbar's background here ? */
1312
1313	if (target->scrollBar.win)
1314	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1315	}
1316	}
1317	else
1318	{
1319	/* set target background to a pixel */
1320	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1321	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);
1322	/* do we also need to set scrollbar's background here ? */
1323	if (target->scrollBar.win)
1324	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1325	}
1326
1327	/* don't want Expose on the parent or vt. It is better to use
1328	scr_touch or we get a great deal of flicker otherwise: */
1329	XClearWindow (target->dpy, target->parent[0]);
1330
1331	if (target->scrollBar.state && target->scrollBar.win)
1332	{
1333	target->scrollBar.state = STATE_IDLE;
1334	target->scrollBar.show (0);
1335	}
1336
1337	target->want_refresh = 1;
1338	flags |= hasChanged;
1339	}
1340	}	1156	}
1341		1157
1342	#endif /* HAVE_BG_PIXMAP */
1343
1344	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) && !XFT
1345	/* taken from aterm-0.4.2 */	1158	/* based on code from aterm-0.4.2 */
1346		1159
1347	typedef uint32_t RUINT32T;
1348
1349	static void	1160	static inline void
1350	ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm)	1161	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1351	{	1162	{
		1163	for (int i = 0; i <= mask >> sh; i++)
		1164	{
		1165	uint32_t tmp;
		1166	tmp = i * high;
		1167	tmp += (mask >> sh) * low;
		1168	lookup[i] = (tmp / 0xffff) << sh;
		1169	}
		1170	}
		1171
		1172	void
		1173	rxvt_term::tint_ximage (XImage *ximage, rxvt_color &tint, bool tint_set, int shade)
		1174	{
		1175	unsigned int size_r, size_g, size_b;
1352	int sh_r, sh_g, sh_b;	1176	int sh_r, sh_g, sh_b;
1353	RUINT32T mask_r, mask_g, mask_b;	1177	uint32_t mask_r, mask_g, mask_b;
1354	RUINT32T *lookup, *lookup_r, *lookup_g, *lookup_b;	1178	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1355	unsigned int lower_lim_r, lower_lim_g, lower_lim_b;	1179	unsigned short low;
1356	unsigned int upper_lim_r, upper_lim_g, upper_lim_b;	1180	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1357	int i;
1358		1181
1359	Visual *visual = term->visual;
1360
1361	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return ;	1182	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1362
1363	if (shade == 0)
1364	shade = 100;
1365		1183
1366	/* for convenience */	1184	/* for convenience */
1367	mask_r = visual->red_mask;	1185	mask_r = visual->red_mask;
1368	mask_g = visual->green_mask;	1186	mask_g = visual->green_mask;
1369	mask_b = visual->blue_mask;	1187	mask_b = visual->blue_mask;
1370		1188
1371	/* boring lookup table pre-initialization */	1189	/* boring lookup table pre-initialization */
1372	switch (srcImage->bits_per_pixel) {	1190	sh_r = ecb_ctz32 (mask_r);
1373	case 15:	1191	sh_g = ecb_ctz32 (mask_g);
1374	if ((mask_r != 0x7c00) ||	1192	sh_b = ecb_ctz32 (mask_b);
1375	(mask_g != 0x03e0) ||	1193
1376	(mask_b != 0x001f))	1194	size_r = mask_r >> sh_r;
		1195	size_g = mask_g >> sh_g;
		1196	size_b = mask_b >> sh_b;
		1197
		1198	if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1377	return;	1199	return;
1378	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32));	1200
		1201	lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1379	lookup_r = lookup;	1202	lookup_r = lookup;
1380	lookup_g = lookup+32;	1203	lookup_g = lookup + size_r;
1381	lookup_b = lookup+32+32;	1204	lookup_b = lookup + size_r + size_g;
1382	sh_r = 10;	1205
1383	sh_g = 5;	1206	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1384	sh_b = 0;	1207
1385	break;	1208	if (tint_set)
1386	case 16:	1209	tint.get (c);
1387	if ((mask_r != 0xf800) ||
1388	(mask_g != 0x07e0) ||
1389	(mask_b != 0x001f))
1390	return;
1391	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32));
1392	lookup_r = lookup;
1393	lookup_g = lookup+32;
1394	lookup_b = lookup+32+64;
1395	sh_r = 11;
1396	sh_g = 5;
1397	sh_b = 0;
1398	break;
1399	case 24:
1400	if ((mask_r != 0xff0000) ||
1401	(mask_g != 0x00ff00) ||
1402	(mask_b != 0x0000ff))
1403	return;
1404	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1405	lookup_r = lookup;
1406	lookup_g = lookup+256;
1407	lookup_b = lookup+256+256;
1408	sh_r = 16;
1409	sh_g = 8;
1410	sh_b = 0;
1411	break;
1412	case 32:
1413	if ((mask_r != 0xff0000) ||
1414	(mask_g != 0x00ff00) ||
1415	(mask_b != 0x0000ff))
1416	return;
1417	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1418	lookup_r = lookup;
1419	lookup_g = lookup+256;
1420	lookup_b = lookup+256+256;
1421	sh_r = 16;
1422	sh_g = 8;
1423	sh_b = 0;
1424	break;
1425	default:
1426	return; /* we do not support this color depth */
1427	}
1428		1210
1429	/* prepare limits for color transformation (each channel is handled separately) */	1211	/* prepare limits for color transformation (each channel is handled separately) */
1430	if (shade < 0) {	1212	if (shade > 100)
1431	shade = -shade;
1432	if (shade < 0) shade = 0;
1433	if (shade > 100) shade = 100;
1434
1435	lower_lim_r = 65535-rm;
1436	lower_lim_g = 65535-gm;
1437	lower_lim_b = 65535-bm;
1438
1439	lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100);
1440	lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100);
1441	lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100);
1442
1443	upper_lim_r = upper_lim_g = upper_lim_b = 65535;
1444	} else {
1445	if (shade < 0) shade = 0;
1446	if (shade > 100) shade = 100;
1447
1448	lower_lim_r = lower_lim_g = lower_lim_b = 0;
1449
1450	upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100);
1451	upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100);
1452	upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100);
1453	}
1454
1455	/* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */
1456	if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000 ))
1457	{	1213	{
1458	unsigned int tmp;	1214	c.r = c.r * (200 - shade) / 100;
		1215	c.g = c.g * (200 - shade) / 100;
		1216	c.b = c.b * (200 - shade) / 100;
1459		1217
1460	tmp = lower_lim_r;	1218	low = 0xffff * (shade - 100) / 100;
1461	lower_lim_r = lower_lim_b;
1462	lower_lim_b = tmp;
1463
1464	tmp = upper_lim_r;
1465	upper_lim_r = upper_lim_b;
1466	upper_lim_b = tmp;
1467	}	1219	}
		1220	else
		1221	{
		1222	c.r = c.r * shade / 100;
		1223	c.g = c.g * shade / 100;
		1224	c.b = c.b * shade / 100;
		1225
		1226	low = 0;
		1227	}
1468		1228
1469	/* fill our lookup tables */	1229	/* fill our lookup tables */
1470	for (i = 0; i <= mask_r>>sh_r; i++)	1230	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1471	{	1231	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1472	RUINT32T tmp;	1232	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1473	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r));
1474	tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r);
1475	lookup_r[i] = (tmp/65535)<<sh_r;
1476	}
1477	for (i = 0; i <= mask_g>>sh_g; i++)
1478	{
1479	RUINT32T tmp;
1480	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g));
1481	tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g);
1482	lookup_g[i] = (tmp/65535)<<sh_g;
1483	}
1484	for (i = 0; i <= mask_b>>sh_b; i++)
1485	{
1486	RUINT32T tmp;
1487	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b));
1488	tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b);
1489	lookup_b[i] = (tmp/65535)<<sh_b;
1490	}
1491		1233
1492	/* apply table to input image (replacing colors by newly calculated ones) */	1234	/* apply table to input image (replacing colors by newly calculated ones) */
1493	switch (srcImage->bits_per_pixel)	1235	if (ximage->bits_per_pixel == 32
		1236	&& ximage->byte_order == host_byte_order)
1494	{	1237	{
1495	case 15:	1238	char *line = ximage->data;
1496	{	1239
1497	unsigned short *p1, *pf, *p, *pl;	1240	for (int y = 0; y < ximage->height; y++)
1498	p1 = (unsigned short *) srcImage->data;
1499	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1500	while (p1 < pf)
1501	{	1241	{
1502	p = p1;	1242	uint32_t *p = (uint32_t *)line;
1503	pl = p1 + srcImage->width;	1243	for (int x = 0; x < ximage->width; x++)
1504	for (; p < pl; p++)	1244	{
		1245	*p = lookup_r[(*p & mask_r) >> sh_r] |
		1246	lookup_g[(*p & mask_g) >> sh_g] |
		1247	lookup_b[(*p & mask_b) >> sh_b];
		1248	p++;
		1249	}
		1250	line += ximage->bytes_per_line;
		1251	}
		1252	}
		1253	else
		1254	{
		1255	for (int y = 0; y < ximage->height; y++)
		1256	for (int x = 0; x < ximage->width; x++)
1505	{	1257	{
1506	*p = lookup_r[(*p & 0x7c00)>>10] |	1258	unsigned long pixel = XGetPixel (ximage, x, y);
1507	lookup_g[(*p & 0x03e0)>> 5] |	1259	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1508	lookup_b[(*p & 0x001f)];	1260	lookup_g[(pixel & mask_g) >> sh_g] |
		1261	lookup_b[(pixel & mask_b) >> sh_b];
		1262	XPutPixel (ximage, x, y, pixel);
1509	}	1263	}
1510	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1511	}	1264	}
1512	break;
1513	}
1514	case 16:
1515	{
1516	unsigned short *p1, *pf, *p, *pl;
1517	p1 = (unsigned short *) srcImage->data;
1518	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1519	while (p1 < pf)
1520	{
1521	p = p1;
1522	pl = p1 + srcImage->width;
1523	for (; p < pl; p++)
1524	{
1525	*p = lookup_r[(*p & 0xf800)>>11] |
1526	lookup_g[(*p & 0x07e0)>> 5] |
1527	lookup_b[(*p & 0x001f)];
1528	}
1529	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1530	}
1531	break;
1532	}
1533	case 24:
1534	{
1535	unsigned char *p1, *pf, *p, *pl;
1536	p1 = (unsigned char *) srcImage->data;
1537	pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1538	while (p1 < pf)
1539	{
1540	p = p1;
1541	pl = p1 + srcImage->width * 3;
1542	for (; p < pl; p += 3)
1543	{
1544	p[0] = lookup_r[(p[0] & 0xff0000)>>16];
1545	p[1] = lookup_r[(p[1] & 0x00ff00)>> 8];
1546	p[2] = lookup_r[(p[2] & 0x0000ff)];
1547	}
1548	p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line);
1549	}
1550	break;
1551	}
1552	case 32:
1553	{
1554	RUINT32T *p1, *pf, *p, *pl;
1555	p1 = (RUINT32T *) srcImage->data;
1556	pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1557
1558	while (p1 < pf)
1559	{
1560	p = p1;
1561	pl = p1 + srcImage->width;
1562	for (; p < pl; p++)
1563	{
1564	*p = lookup_r[(*p & 0xff0000)>>16] |
1565	lookup_g[(*p & 0x00ff00)>> 8] |
1566	lookup_b[(*p & 0x0000ff)] |
1567	(*p & ~0xffffff);
1568	}
1569	p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line);
1570	}
1571	break;
1572	}
1573	}
1574		1265
1575	free (lookup);	1266	free (lookup);
1576	}	1267	}
1577	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	1268
		1269	#endif /* HAVE_BG_PIXMAP */

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