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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.82 by sf-exg, Thu Oct 14 16:01:28 2010 UTC vs.
Revision 1.243 by sf-exg, Sun Jun 17 17:06:47 2012 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.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
24	#include <cmath>
25	#include "../config.h" /* NECESSARY */	25	#include "../config.h" /* NECESSARY */
26	#include "rxvt.h" /* NECESSARY */	26	#include "rxvt.h" /* NECESSARY */
27		27
28	#define DO_TIMING_TEST 0
29
30	#if DO_TIMING_TEST
31	# include <sys/time.h>
32	#define TIMING_TEST_START(id) \
33	struct timeval timing_test_##id##_stv; \
34	gettimeofday (&timing_test_##id##_stv, NULL);
35
36	#define TIMING_TEST_PRINT_RESULT(id) \
37	do { \
38	struct timeval tv; \
39	gettimeofday (&tv, NULL); \
40	tv.tv_sec -= (timing_test_##id##_stv).tv_sec; \
41	fprintf (stderr, "%s: %s: %d: elapsed %ld usec\n", #id, __FILE__, __LINE__, \
42	tv.tv_sec * 1000000 + tv.tv_usec - (timing_test_##id##_stv).tv_usec); \
43	} while (0)
44
45	#else
46	#define TIMING_TEST_START(id) do {} while (0)
47	#define TIMING_TEST_PRINT_RESULT(id) do {} while (0)
48	#endif
49
50	/*
51	* Pixmap geometry string interpretation :
52	* Each geometry string contains zero or one scale/position
53	* adjustment and may optionally be followed by a colon and one or more
54	* colon-delimited pixmap operations.
55	* The following table shows the valid geometry strings and their
56	* effects on the background image :
57	*
58	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
59	* W and H are percentages of the terminal window size.
60	* X and Y are also percentages; e.g., +50+50 centers
61	* the image in the window.
62	* WxH+X Assumes Y == X
63	* WxH Assumes Y == X == 50 (centers the image)
64	* W+X+Y Assumes H == W
65	* W+X Assumes H == W and Y == X
66	* W Assumes H == W and Y == X == 50
67	*
68	* Adjusting position only :
69	* =+X+Y Set position to X% by Y% (absolute).
70	* =+X Set position to X% by X%.
71	* +X+Y Adjust position horizontally X% and vertically Y%
72	* from current position (relative).
73	* +X Adjust position horizontally X% and vertically X%
74	* from current position.
75	*
76	* Adjusting scale only :
77	* Wx0 Multiply horizontal scaling factor by W%
78	* 0xH Multiply vertical scaling factor by H%
79	* 0x0 No scaling (show image at normal size).
80	*
81	* Pixmap Operations : (should be prepended by a colon)
82	* tile Tile image. Scaling/position modifiers above will affect
83	* the tile size and origin.
84	* propscale When scaling, scale proportionally. That is, maintain the
85	* proper aspect ratio for the image. Any portion of the
86	* background not covered by the image is filled with the
87	* current background color.
88	* hscale Scale horizontally, tile vertically ?
89	* vscale Tile horizontally, scale vertically ?
90	* scale Scale both up and down
91	* auto Same as 100x100+50+50
92	*/
93
94	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
95	bgPixmap_t::bgPixmap_t ()
96	{
97	// this is basically redundant as bgPixmap_t is only used in
98	// zero_initialised-derived structs
99	#ifdef HAVE_AFTERIMAGE
100	original_asim = NULL;
101	#endif
102	#ifdef HAVE_PIXBUF
103	pixbuf = NULL;
104	#endif
105	#ifdef BG_IMAGE_FROM_FILE
106	have_image = false;
107	h_scale = v_scale = 0;
108	h_align = v_align = 0;
109	#endif
110	#ifdef ENABLE_TRANSPARENCY
111	shade = 100;
112	#endif
113	flags = 0;
114	pixmap = None;
115	valid_since = invalid_since = 0;
116	target = 0;
117	}
118		29
119	void	30	void
120	bgPixmap_t::destroy ()	31	rxvt_term::bg_destroy ()
121	{	32	{
122	#ifdef HAVE_AFTERIMAGE
123	if (original_asim)
124	safe_asimage_destroy (original_asim);
125	#endif
126
127	#ifdef HAVE_PIXBUF
128	if (pixbuf)
129	g_object_unref (pixbuf);
130	#endif
131
132	if (pixmap && target)
133	XFreePixmap (target->dpy, pixmap);
134	}
135
136	bool
137	bgPixmap_t::window_size_sensitive ()
138	{
139	# ifdef ENABLE_TRANSPARENCY	33	# if ENABLE_TRANSPARENCY
140	if (flags & isTransparent)	34	delete root_img;
		35	root_img = 0;
		36	# endif
		37
		38	# if BG_IMAGE_FROM_FILE
		39	fimage.destroy ();
		40	# endif
		41
		42	delete bg_img;
		43	bg_img = 0;
		44	}
		45
		46	bool
		47	rxvt_term::bg_window_size_sensitive ()
		48	{
		49	# if ENABLE_TRANSPARENCY
		50	if (bg_flags & BG_IS_TRANSPARENT)
141	return true;	51	return true;
142	# endif	52	# endif
143		53
144	# ifdef BG_IMAGE_FROM_FILE	54	# if BG_IMAGE_FROM_FILE
145	if (have_image)	55	if (fimage.img)
146	{	56	{
147	if (flags & sizeSensitive)	57	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		58	|| fimage.img->w > szHint.width
		59	|| fimage.img->h > szHint.height)
148	return true;	60	return true;
149	}	61	}
150	# endif	62	# endif
151		63
152	return false;	64	return false;
153	}	65	}
154		66
155	bool	67	bool
156	bgPixmap_t::window_position_sensitive ()	68	rxvt_term::bg_window_position_sensitive ()
157	{	69	{
158	# ifdef ENABLE_TRANSPARENCY	70	# if ENABLE_TRANSPARENCY
159	if (flags & isTransparent)	71	if (bg_flags & BG_IS_TRANSPARENT)
160	return true;	72	return true;
161	# endif	73	# endif
162		74
163	# ifdef BG_IMAGE_FROM_FILE	75	# if BG_IMAGE_FROM_FILE
164	if (have_image)	76	if (fimage.img)
165	{	77	{
166	if (flags & rootAlign)	78	if (fimage.flags & IM_ROOT_ALIGN)
167	return true;	79	return true;
168	}	80	}
169	# endif	81	# endif
170		82
171	return false;	83	return false;
172	};
173
174	bool bgPixmap_t::need_client_side_rendering ()
175	{
176	# ifdef HAVE_AFTERIMAGE
177	if (original_asim)
178	return true;
179	# endif
180	# ifdef ENABLE_TRANSPARENCY
181	if (flags & isTransparent)
182	{
183	# ifdef HAVE_AFTERIMAGE
184	if ((flags & blurNeeded) && !(flags & blurServerSide))
185	return true;
186	# endif
187	if ((flags & tintNeeded) && !(flags & tintServerSide))
188	return true;
189	}
190	# endif
191	return false;
192	}	84	}
193		85
194	# ifdef BG_IMAGE_FROM_FILE	86	# if BG_IMAGE_FROM_FILE
195	static inline bool
196	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
197	{
198	if (geom_flags & flag)
199	{
200	if (new_value > 1000)
201	new_value = 1000;
202	if (new_value != scale)
203	{
204	scale = new_value;
205	return true;
206	}
207	}
208	return false;
209	}
210
211	static inline bool
212	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
213	{
214	if (geom_flags & flag)
215	{
216	if (new_value < -100)
217	new_value = -100;
218	else if (new_value > 200)
219	new_value = 200;
220	if (new_value != align)
221	{
222	align = new_value;
223	return true;
224	}
225	}
226	return false;
227	}
228
229	static inline int	87	static inline int
230	make_align_position (int align, int window_size, int image_size)	88	make_align_position (int align, int window_size, int image_size)
231	{	89	{
232	int diff = window_size - image_size;
233	int smaller = min (image_size, window_size);
234
235	if (align >= 0 && align <= 100)	90	if (align >= 0 && align <= 100)
236	return diff * align / 100;	91	return lerp (0, window_size - image_size, align);
237	else if (align > 100 && align <= 200 )	92	else if (align > 100)
238	return ((align - 100) * smaller / 100) + window_size - smaller;	93	return lerp (window_size - image_size, window_size, align - 100);
239	else if (align >= -100 && align < 0)	94	else
240	return ((align + 100) * smaller / 100) - image_size;	95	return lerp (-image_size, 0, align + 100);
241	return 0;
242	}	96	}
243		97
244	static inline int	98	static void
245	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	99	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
246	{	100	{
247	int src_pos = 0;	101	if (!strcasecmp (style, "tiled"))
248	dst_pos = pos;
249	dst_size = size;
250	if (pos < 0)
251	{
252	src_pos = -pos;
253	dst_pos = 0;
254	dst_size += pos;
255	}	102	{
256		103	flags = IM_TILE;
257	if (dst_pos + dst_size > target_size)	104	w = h = noScale;
258	dst_size = target_size - dst_pos;	105	x = y = 0;
259	return src_pos;	106	}
		107	else if (!strcasecmp (style, "aspect-stretched"))
		108	{
		109	flags = IM_KEEP_ASPECT;
		110	w = h = windowScale;
		111	x = y = centerAlign;
		112	}
		113	else if (!strcasecmp (style, "stretched"))
		114	{
		115	flags = 0;
		116	w = h = windowScale;
		117	x = y = centerAlign;
		118	}
		119	else if (!strcasecmp (style, "centered"))
		120	{
		121	flags = 0;
		122	w = h = noScale;
		123	x = y = centerAlign;
		124	}
		125	else if (!strcasecmp (style, "root-tiled"))
		126	{
		127	flags = IM_TILE|IM_ROOT_ALIGN;
		128	w = h = noScale;
		129	x = y = 0;
		130	}
260	}	131	}
261		132
262	bool	133	bool
263	bgPixmap_t::set_geometry (const char *geom)	134	rxvt_image::set_geometry (const char *geom, bool update)
264	{	135	{
		136	bool changed = false;
265	int geom_flags = 0, changed = 0;	137	int geom_flags = 0;
266	int x = 0, y = 0;	138	int x = h_align;
		139	int y = v_align;
267	unsigned int w = 0, h = 0;	140	unsigned int w = h_scale;
268	unsigned int n;	141	unsigned int h = v_scale;
269	unsigned long new_flags = (flags & (~geometryFlags));	142	uint8_t new_flags = 0;
270	const char *p;
271	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
272		143
273	if (geom == NULL)	144	if (geom == NULL)
274	return false;	145	return false;
275		146
276	char str[MAXLEN_GEOM];	147	if (geom[0])
277
278	while (isspace(*geom)) ++geom;
279	if ((p = strchr (geom, ';')) == NULL)
280	p = strchr (geom, '\0');
281
282	n = (p - geom);
283	if (n < MAXLEN_GEOM)
284	{	148	{
285	char *ops;	149	char **arr = rxvt_strsplit (':', geom);
286	new_flags |= geometrySet;
287		150
288	memcpy (str, geom, n);	151	for (int i = 0; arr[i]; i++)
289	str[n] = '\0';
290	if (str[0] == ':')
291	ops = &str[0];
292	else if (str[0] != 'x' && str[0] != 'X' && isalpha(str[0]))
293	ops = &str[0];
294	else
295	{	152	{
296	char *tmp;	153	if (!strncasecmp (arr[i], "style=", 6))
297	ops = strchr (str, ':');
298	if (ops != NULL)
299	{
300	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);
301	*(++tmp) = '\0';
302	if (ops == tmp) ++ops;
303	}	154	{
304	}	155	parse_style (arr[i] + 6, x, y, w, h, new_flags);
305
306	if (ops > str || ops == NULL)
307	{
308	/* we have geometry string - let's handle it prior to applying ops */
309	geom_flags = XParseGeometry (str, &x, &y, &w, &h);
310
311	if ((geom_flags & XValue) && !(geom_flags & YValue))
312	{
313	y = x;
314	geom_flags |= YValue;
315	}
316
317	if (flags & geometrySet)
318	{
319	/* new geometry is an adjustment to the old one ! */
320	if ((geom_flags & WidthValue) && (geom_flags & HeightValue))
321	{
322	if (w == 0 && h != 0)
323	{
324	w = h_scale;
325	h = (v_scale * h) / 100;
326	}
327	else if (h == 0 && w != 0)
328	{
329	w = (h_scale * w) / 100;
330	h = v_scale;
331	}
332	}
333	if (geom_flags & XValue)
334	{
335	if (str[0] != '=')
336	{
337	y += v_align;
338	x += h_align;
339	}
340	}
341	}
342	else /* setting up geometry from scratch */
343	{
344	if (!(geom_flags & XValue))
345	{
346	/* use default geometry - centered */
347	x = y = defaultAlign;
348	}
349	else if (!(geom_flags & YValue))
350	y = x;
351
352	if ((geom_flags & (WidthValue|HeightValue)) == 0)
353	{
354	/* use default geometry - scaled */
355	w = h = defaultScale;
356	}
357	else if (geom_flags & WidthValue)
358	{
359	if (!(geom_flags & HeightValue))
360	h = w;
361	}
362	else
363	w = h;
364	}
365	} /* done parsing geometry string */
366	else if (!(flags & geometrySet))
367	{
368	/* default geometry - scaled and centered */
369	x = y = defaultAlign;
370	w = h = defaultScale;
371	}
372
373	if (!(flags & geometrySet))
374	geom_flags |= WidthValue|HeightValue|XValue|YValue;	156	geom_flags = WidthValue|HeightValue|XValue|YValue;
375
376	if (ops)
377	{
378	while (*ops)
379	{	157	}
380	while (*ops == ':' || isspace(*ops)) ++ops;	158	else if (!strcasecmp (arr[i], "op=tile"))
		159	new_flags |= IM_TILE;
		160	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		161	new_flags |= IM_KEEP_ASPECT;
		162	else if (!strcasecmp (arr[i], "op=root-align"))
		163	new_flags |= IM_ROOT_ALIGN;
381		164
382	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)	165	// deprecated
383	if (CHECK_GEOM_OPS ("tile"))	166	else if (!strcasecmp (arr[i], "tile"))
384	{	167	{
		168	new_flags |= IM_TILE;
385	w = h = noScale;	169	w = h = noScale;
386	geom_flags |= WidthValue|HeightValue;	170	geom_flags |= WidthValue|HeightValue;
387	}	171	}
388	else if (CHECK_GEOM_OPS ("propscale"))	172	else if (!strcasecmp (arr[i], "propscale"))
389	{	173	{
390	new_flags |= propScale;	174	new_flags |= IM_KEEP_ASPECT;
391	}
392	else if (CHECK_GEOM_OPS ("hscale"))
393	{
394	if (w == 0) w = windowScale;
395
396	h = noScale;	175	w = h = windowScale;
397	geom_flags |= WidthValue|HeightValue;	176	geom_flags |= WidthValue|HeightValue;
398	}	177	}
399	else if (CHECK_GEOM_OPS ("vscale"))	178	else if (!strcasecmp (arr[i], "hscale"))
400	{	179	{
		180	new_flags |= IM_TILE;
401	if (h == 0) h = windowScale;	181	w = windowScale;
402
403	w = noScale;	182	h = noScale;
404	geom_flags |= WidthValue|HeightValue;	183	geom_flags |= WidthValue|HeightValue;
405	}	184	}
406	else if (CHECK_GEOM_OPS ("scale"))	185	else if (!strcasecmp (arr[i], "vscale"))
407	{	186	{
		187	new_flags |= IM_TILE;
408	if (h == 0) h = windowScale;	188	h = windowScale;
409	if (w == 0) w = windowScale;	189	w = noScale;
410
411	geom_flags |= WidthValue|HeightValue;	190	geom_flags |= WidthValue|HeightValue;
412	}	191	}
413	else if (CHECK_GEOM_OPS ("auto"))	192	else if (!strcasecmp (arr[i], "scale"))
414	{	193	{
415	w = h = windowScale;	194	w = h = windowScale;
		195	geom_flags |= WidthValue|HeightValue;
		196	}
		197	else if (!strcasecmp (arr[i], "auto"))
		198	{
		199	w = h = windowScale;
416	x = y = centerAlign;	200	x = y = centerAlign;
417	geom_flags |= WidthValue|HeightValue|XValue|YValue;	201	geom_flags |= WidthValue|HeightValue|XValue|YValue;
418	}	202	}
419	else if (CHECK_GEOM_OPS ("root"))	203	else if (!strcasecmp (arr[i], "root"))
420	{	204	{
421	new_flags |= rootAlign;	205	new_flags |= IM_TILE|IM_ROOT_ALIGN;
422	w = h = noScale;	206	w = h = noScale;
423	geom_flags |= WidthValue|HeightValue;	207	geom_flags |= WidthValue|HeightValue;
424	}	208	}
425	# undef CHECK_GEOM_OPS
426		209
427	while (*ops != ':' && *ops != '\0') ++ops;	210	else
		211	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
428	} /* done parsing ops */	212	} /* done parsing ops */
429	}
430		213
431	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) ++changed;	214	rxvt_free_strsplit (arr);
432	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) ++changed;	215	}
433	if (check_set_align_value (geom_flags, XValue, h_align, x)) ++changed;	216
434	if (check_set_align_value (geom_flags, YValue, v_align, y)) ++changed;	217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
		218
		219	if (!update)
435	}	220	{
		221	if (!(geom_flags & XValue))
		222	x = y = defaultAlign;
		223	else if (!(geom_flags & YValue))
		224	y = x;
436		225
437	if (new_flags != flags)	226	if (!(geom_flags & (WidthValue|HeightValue)))
		227	w = h = defaultScale;
		228	else if (!(geom_flags & HeightValue))
		229	h = w;
		230	else if (!(geom_flags & WidthValue))
		231	w = h;
		232	}
		233
		234	clamp_it (x, -100, 200);
		235	clamp_it (y, -100, 200);
		236
		237	if (flags != new_flags
		238	|| h_scale != w
		239	|| v_scale != h
		240	|| h_align != x
		241	|| v_align != y)
438	{	242	{
439	flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
440	changed++;	248	changed = true;
441	}	249	}
442		250
443	//fprintf (stderr, "flags = %lX, scale = %ux%u, align=%+d%+d\n",	251	if (is_size_sensitive ())
444	// flags, h_scale, v_scale, h_align, v_align);	252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
445	return (changed > 0);	256	return changed;
446	}	257	}
447		258
448	void	259	void
449	bgPixmap_t::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	260	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
450	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
451	int target_width = target->szHint.width;	264	int parent_width = szHint.width;
452	int target_height = target->szHint.height;	265	int parent_height = szHint.height;
		266	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		267	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
453		268
454	if (flags & propScale)	269	w = h_scale * parent_width / 100;
		270	h = v_scale * parent_height / 100;
		271
		272	if (image.flags & IM_KEEP_ASPECT)
455	{	273	{
456	float scale = (float)target_width / image_width;	274	float scale = (float)w / image_width;
457	min_it (scale, (float)target_height / image_height);	275	min_it (scale, (float)h / image_height);
458	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
459	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
460	}	278	}
461	else
462	{
463	w = h_scale * target_width / 100;
464	h = v_scale * target_height / 100;
465	}
466		279
467	if (!w) w = image_width;	280	if (!w) w = image_width;
468	if (!h) h = image_height;	281	if (!h) h = image_height;
469		282
470	if (flags & rootAlign)	283	if (image.flags & IM_ROOT_ALIGN)
471	{	284	{
472	target->get_window_origin (x, y);
473	x = -x;	285	x = -parent_x;
474	y = -y;	286	y = -parent_y;
475	}	287	}
476	else	288	else
477	{	289	{
478	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
479	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
480	}
481
482	flags &= ~sizeSensitive;
483	if (h_scale != 0 || v_scale != 0
484	|| h_align != 0 || v_align != 0
485	|| w > target_width || h > target_height)
486	flags |= sizeSensitive;
487	}
488
489	# ifdef HAVE_AFTERIMAGE
490	bool
491	bgPixmap_t::render_image (unsigned long background_flags)
492	{
493	if (target == NULL)
494	return false;
495
496	target->init_asv ();
497
498	ASImage *background = NULL;
499	ARGB32 background_tint = TINT_LEAVE_SAME;
500
501	# ifdef ENABLE_TRANSPARENCY
502	if (background_flags)
503	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
504
505	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
506	{	292	}
507	ShadingInfo as_shade;	293	}
508	as_shade.shading = shade;
509		294
510	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
511	if (flags & tintSet)	296	rxvt_term::render_image (rxvt_image &image)
512	tint.get (c);	297	{
513	as_shade.tintColor.red = c.r;
514	as_shade.tintColor.green = c.g;
515	as_shade.tintColor.blue = c.b;
516
517	background_tint = shading2tint32 (&as_shade);
518	}
519
520	if (!(background_flags & transpPmapBlurred) && (flags & blurNeeded) && background != NULL)
521	{
522	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
523	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
524	100, ASIMAGE_QUALITY_DEFAULT);
525	if (tmp)
526	{
527	destroy_asimage (&background);
528	background = tmp;
529	}
530	}
531	# endif
532
533	ASImage *result = 0;
534
535	int target_width = target->szHint.width;	298	int parent_width = szHint.width;
536	int target_height = target->szHint.height;	299	int parent_height = szHint.height;
537	int new_pmap_width = target_width;
538	int new_pmap_height = target_height;
539		300
540	int x = 0;	301	int x = 0;
541	int y = 0;	302	int y = 0;
542	int w = 0;	303	int w = 0;
543	int h = 0;	304	int h = 0;
544		305
545	TIMING_TEST_START (asim);	306	get_image_geometry (image, w, h, x, y);
546		307
547	if (original_asim)	308	if (!(image.flags & IM_ROOT_ALIGN)
548	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
549
550	if (!original_asim
551	|| (!(flags & rootAlign)
552	&& (x >= target_width	309	&& (x >= parent_width
553	|| y >= target_height	310	|| y >= parent_height
554	|| (x + w <= 0)	311	|| x + w <= 0
555	|| (y + h <= 0))))	312	|| y + h <= 0))
556	{	313	return false;
557	if (background)
558	{
559	new_pmap_width = background->width;
560	new_pmap_height = background->height;
561	result = background;
562		314
563	if (background_tint != TINT_LEAVE_SAME)	315	rxvt_img *img = image.img->scale (w, h);
564	{	316
565	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	317	if (image.flags & IM_TILE)
566	target_width, target_height, background_tint,	318	img->repeat_mode (RepeatNormal);
567	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
568	if (tmp)
569	result = tmp;
570	}
571	}
572	else
573	new_pmap_width = new_pmap_height = 0;
574	}
575	else	319	else
576	{	320	img->repeat_mode (RepeatNone);
577	result = original_asim;	321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
578		322
579	if ((w != original_asim->width)	323	if (bg_flags & BG_IS_VALID)
580	|| (h != original_asim->height))
581	{
582	result = scale_asimage (target->asv, original_asim,
583	w, h,
584	background ? ASA_ASImage : ASA_XImage,
585	100, ASIMAGE_QUALITY_DEFAULT);
586	}
587
588	if (background == NULL)
589	{
590	if (h_scale == 0 || v_scale == 0)
591	{
592	/* if tiling - pixmap has to be sized exactly as the image,
593	but there is no need to make it bigger than the window! */
594	new_pmap_width = min (result->width, target_width);
595	new_pmap_height = min (result->height, target_height);
596
597	/* we also need to tile our image in both directions */
598	ASImage *tmp = tile_asimage (target->asv, result,
599	(int)result->width - x,
600	(int)result->height - y,
601	new_pmap_width,
602	new_pmap_height,
603	TINT_LEAVE_SAME, ASA_XImage,
604	100, ASIMAGE_QUALITY_DEFAULT);
605	if (tmp)
606	{
607	if (result != original_asim)
608	destroy_asimage (&result);
609
610	result = tmp;
611	}
612	}
613	}
614	else
615	{
616	/* if blending background and image - pixmap has to be sized same as target window */
617	ASImageLayer *layers = create_image_layers (2);
618
619	layers[0].im = background;
620	layers[0].clip_width = target_width;
621	layers[0].clip_height = target_height;
622	layers[0].tint = background_tint;
623	layers[1].im = result;
624
625	if (h_scale == 0 || v_scale == 0)
626	{
627	/* tile horizontally */
628	while (x > 0) x -= (int)result->width;
629	layers[1].dst_x = x;
630	layers[1].clip_width = result->width+target_width;
631	}
632	else
633	{
634	/* clip horizontally */
635	layers[1].dst_x = x;
636	layers[1].clip_width = result->width;
637	}
638
639	if (h_scale == 0 || v_scale == 0)
640	{
641	while (y > 0) y -= (int)result->height;
642	layers[1].dst_y = y;
643	layers[1].clip_height = result->height + target_height;
644	}
645	else
646	{
647	layers[1].dst_y = y;
648	layers[1].clip_height = result->height;
649	}
650
651	if (target->rs[Rs_blendtype])
652	{
653	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
654	if (layers[1].merge_scanlines == NULL)
655	layers[1].merge_scanlines = alphablend_scanlines;
656	}
657
658	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
659	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
660
661	if (tmp)
662	{
663	if (result != original_asim)
664	destroy_asimage (&result);
665
666	result = tmp;
667	}
668
669	free (layers);
670	}
671	}	324	{
672	TIMING_TEST_PRINT_RESULT (asim);	325	double factor = image.alpha * 1. / 0xffff;
673		326	bg_img->blend (img, factor)->replace (img);
674	bool ret = false;
675
676	if (result)
677	{	327	}
678	XGCValues gcv;
679	GC gc;
680		328
681	if (pixmap)	329	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
682	{	330	img->convert_format (format, pix_colors [Color_bg])->replace (img);
683	if (pmap_width != new_pmap_width
684	|| pmap_height != new_pmap_height
685	|| pmap_depth != target->depth)
686	{
687	XFreePixmap (target->dpy, pixmap);
688	pixmap = None;
689	}
690	}
691		331
692	/* create Pixmap */	332	delete bg_img;
693	if (pixmap == None)	333	bg_img = img;
694	{
695	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
696	pmap_width = new_pmap_width;
697	pmap_height = new_pmap_height;
698	pmap_depth = target->depth;
699	}
700	/* fill with background color (if result's not completely overlapping it) */
701	gcv.foreground = target->pix_colors[Color_bg];
702	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
703		334
704	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
705	int dst_width = result->width, dst_height = result->height;
706	if (background == NULL)
707	{
708	if (!(h_scale == 0 || v_scale == 0))
709	{
710	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
711	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
712	}
713
714	if (dst_x > 0 || dst_y > 0
715	|| dst_x + dst_width < new_pmap_width
716	|| dst_y + dst_height < new_pmap_height)
717	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
718	}
719
720	/* put result on pixmap */
721	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
722	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
723
724	if (result != background && result != original_asim)
725	destroy_asimage (&result);
726
727	XFreeGC (target->dpy, gc);
728	TIMING_TEST_PRINT_RESULT (asim);
729
730	ret = true;
731	}
732
733	if (background)
734	destroy_asimage (&background);
735
736	return ret;	335	return true;
737	}	336	}
738	# endif /* HAVE_AFTERIMAGE */
739		337
740	# ifdef HAVE_PIXBUF	338	rxvt_image::rxvt_image ()
741	bool
742	bgPixmap_t::render_image (unsigned long background_flags)
743	{	339	{
744	if (target == NULL)	340	alpha = 0xffff;
		341	flags = 0;
		342	h_scale =
		343	v_scale = defaultScale;
		344	h_align =
		345	v_align = defaultAlign;
		346
		347	img = 0;
		348	}
		349
		350	void
		351	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
		352	{
		353	if (!file || !*file)
745	return false;	354	return;
746		355
747	if (!pixbuf)
748	return false;
749
750	#if !XFT
751	if (background_flags)
752	return false;
753	#endif
754
755	GdkPixbuf *result;
756
757	int image_width = gdk_pixbuf_get_width (pixbuf);
758	int image_height = gdk_pixbuf_get_height (pixbuf);
759
760	int target_width = target->szHint.width;
761	int target_height = target->szHint.height;
762	int new_pmap_width = target_width;
763	int new_pmap_height = target_height;
764
765	int x = 0;
766	int y = 0;
767	int w = 0;
768	int h = 0;
769
770	get_image_geometry (image_width, image_height, w, h, x, y);
771
772	if (!(flags & rootAlign)
773	&& (x >= target_width
774	|| y >= target_height
775	|| (x + w <= 0)
776	|| (y + h <= 0)))
777	return false;
778
779	result = pixbuf;
780
781	if ((w != image_width)
782	|| (h != image_height))
783	{
784	result = gdk_pixbuf_scale_simple (pixbuf,
785	w, h,
786	GDK_INTERP_BILINEAR);
787	}
788
789	bool ret = false;
790
791	if (result)
792	{
793	XGCValues gcv;
794	GC gc;
795	Pixmap root_pmap;
796
797	image_width = gdk_pixbuf_get_width (result);
798	image_height = gdk_pixbuf_get_height (result);
799
800	if (background_flags)
801	{
802	root_pmap = pixmap;
803	pixmap = None;
804	}
805	else
806	{
807	if (h_scale == 0 || v_scale == 0)
808	{
809	new_pmap_width = min (image_width, target_width);
810	new_pmap_height = min (image_height, target_height);
811	}
812	}
813
814	if (pixmap)
815	{
816	if (pmap_width != new_pmap_width
817	|| pmap_height != new_pmap_height
818	|| pmap_depth != target->depth)
819	{
820	XFreePixmap (target->dpy, pixmap);
821	pixmap = None;
822	}
823	}
824
825	if (pixmap == None)
826	{
827	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
828	pmap_width = new_pmap_width;
829	pmap_height = new_pmap_height;
830	pmap_depth = target->depth;
831	}
832
833	gcv.foreground = target->pix_colors[Color_bg];
834	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
835
836	if (h_scale == 0 || v_scale == 0)
837	{
838	Pixmap tile = XCreatePixmap (target->dpy, target->vt, image_width, image_height, target->depth);
839	gdk_pixbuf_xlib_render_to_drawable (result, tile, gc,
840	0, 0,
841	0, 0,
842	image_width, image_height,
843	XLIB_RGB_DITHER_NONE,
844	0, 0);
845
846	gcv.tile = tile;
847	gcv.fill_style = FillTiled;
848	gcv.ts_x_origin = x;
849	gcv.ts_y_origin = y;
850	XChangeGC (target->dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
851
852	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
853	XFreePixmap (target->dpy, tile);
854	}
855	else
856	{
857	int src_x, src_y, dst_x, dst_y;
858	int dst_width, dst_height;
859
860	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
861	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
862
863	if (dst_x > 0 || dst_y > 0
864	|| dst_x + dst_width < new_pmap_width
865	|| dst_y + dst_height < new_pmap_height)
866	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
867
868	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
869	gdk_pixbuf_xlib_render_to_drawable (result, pixmap, gc,
870	src_x, src_y,
871	dst_x, dst_y,
872	dst_width, dst_height,
873	XLIB_RGB_DITHER_NONE,
874	0, 0);
875	}
876
877	#if XFT
878	if (background_flags)
879	{
880	Display *dpy = target->dpy;
881	XRenderPictureAttributes pa;
882
883	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, target->display->screen));
884	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
885
886	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);
887	Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);
888
889	pa.repeat = True;
890	Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);
891	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
892	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
893	XFreePixmap (dpy, mask_pmap);
894
895	if (src && dst && mask)
896	{
897	XRenderColor mask_c;
898
899	mask_c.alpha = 0x8000;
900	mask_c.red = 0;
901	mask_c.green = 0;
902	mask_c.blue = 0;
903	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
904	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
905	}
906
907	XRenderFreePicture (dpy, src);
908	XRenderFreePicture (dpy, dst);
909	XRenderFreePicture (dpy, mask);
910
911	XFreePixmap (dpy, root_pmap);
912	}
913	#endif
914
915	if (result != pixbuf)
916	g_object_unref (result);
917
918	XFreeGC (target->dpy, gc);
919
920	ret = true;
921	}
922
923	return ret;
924	}
925	# endif /* HAVE_PIXBUF */
926
927	bool
928	bgPixmap_t::set_file (const char *file)
929	{
930	assert (file);
931
932	if (*file)
933	{
934	if (const char *p = strchr (file, ';'))	356	const char *p = strchr (file, ';');
935	{	357
		358	if (p)
		359	{
936	size_t len = p - file;	360	size_t len = p - file;
937	char *f = rxvt_temp_buf<char> (len + 1);	361	char *f = rxvt_temp_buf<char> (len + 1);
938	memcpy (f, file, len);	362	memcpy (f, file, len);
939	f[len] = '\0';	363	f[len] = '\0';
940	file = f;	364	file = f;
941	}
942
943	# ifdef HAVE_AFTERIMAGE
944	if (!target->asimman)
945	target->asimman = create_generic_imageman (target->rs[Rs_path]);
946	ASImage *image = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);
947	if (image)
948	{
949	if (original_asim)
950	safe_asimage_destroy (original_asim);
951	original_asim = image;
952	have_image = true;
953	return true;
954	}
955	# endif
956
957	# ifdef HAVE_PIXBUF
958	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
959	if (image)
960	{
961	if (pixbuf)
962	g_object_unref (pixbuf);
963	pixbuf = image;
964	have_image = true;
965	return true;
966	}
967	# endif
968	}	365	}
969		366
970	return false;	367	set_file (s, file);
		368	alpha = 0x8000;
		369	set_geometry (p ? p + 1 : "");
		370	}
		371
		372	void
		373	rxvt_image::set_file (rxvt_screen *s, const char *file)
		374	{
		375	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
		376	delete img;
		377	img = img2;
971	}	378	}
972		379
973	# endif /* BG_IMAGE_FROM_FILE */	380	# endif /* BG_IMAGE_FROM_FILE */
974		381
975	# ifdef ENABLE_TRANSPARENCY
976	bool	382	bool
977	bgPixmap_t::set_transparent ()
978	{
979	if (!(flags & isTransparent))
980	{
981	flags |= isTransparent;
982	return true;
983	}
984
985	return false;
986	}
987
988	bool
989	bgPixmap_t::set_blur_radius (const char *geom)	383	image_effects::set_blur (const char *geom)
990	{	384	{
991	int changed = 0;	385	bool changed = false;
992	unsigned int hr, vr;	386	unsigned int hr, vr;
993	int junk;	387	int junk;
994	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	388	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
995		389
996	if (!(geom_flags & WidthValue))	390	if (!(geom_flags & WidthValue))
…		…
1001	min_it (hr, 128);	395	min_it (hr, 128);
1002	min_it (vr, 128);	396	min_it (vr, 128);
1003		397
1004	if (h_blurRadius != hr)	398	if (h_blurRadius != hr)
1005	{	399	{
1006	++changed;	400	changed = true;
1007	h_blurRadius = hr;	401	h_blurRadius = hr;
1008	}	402	}
1009		403
1010	if (v_blurRadius != vr)	404	if (v_blurRadius != vr)
1011	{	405	{
1012	++changed;	406	changed = true;
1013	v_blurRadius = vr;	407	v_blurRadius = vr;
1014	}	408	}
1015		409
1016	if (v_blurRadius == 0 && h_blurRadius == 0)
1017	flags &= ~blurNeeded;
1018	else
1019	flags |= blurNeeded;
1020
1021	#if XFT
1022	XFilters *filters = XRenderQueryFilters (target->dpy, target->display->root);
1023	if (filters)
1024	{
1025	for (int i = 0; i < filters->nfilter; i++)
1026	if (!strcmp (filters->filter[i], FilterConvolution))
1027	flags |= bgPixmap_t::blurServerSide;
1028
1029	XFree (filters);
1030	}
1031	#endif
1032
1033	return (changed > 0);	410	return changed;
1034	}	411	}
1035		412
1036	static inline unsigned long
1037	compute_tint_shade_flags (rxvt_color *tint, int shade)
1038	{
1039	unsigned long flags = 0;
1040	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1041	bool has_shade = shade != 100;
1042
1043	if (tint)
1044	{
1045	tint->get (c);
1046	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)
1047	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)
1048	&& IS_COMPONENT_WHOLESOME (c.g)
1049	&& IS_COMPONENT_WHOLESOME (c.b))
1050	flags |= bgPixmap_t::tintWholesome;
1051	# undef IS_COMPONENT_WHOLESOME
1052	}
1053
1054	if (has_shade)
1055	flags |= bgPixmap_t::tintNeeded;
1056	else if (tint)
1057	{
1058	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)
1059	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))
1060	{
1061	flags |= bgPixmap_t::tintNeeded;
1062	}
1063	}
1064
1065	if (flags & bgPixmap_t::tintNeeded)
1066	{
1067	if (flags & bgPixmap_t::tintWholesome)
1068	flags |= bgPixmap_t::tintServerSide;
1069	else
1070	{
1071	#if XFT
1072	flags |= bgPixmap_t::tintServerSide;
1073	#endif
1074	}
1075	}
1076
1077	return flags;
1078	}
1079
1080	bool	413	bool
1081	bgPixmap_t::set_tint (rxvt_color &new_tint)	414	image_effects::set_tint (const rxvt_color &new_tint)
1082	{	415	{
1083	if (!(flags & tintSet) || tint != new_tint)	416	if (!tint_set || tint != new_tint)
1084	{	417	{
1085	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
1086	tint = new_tint;	418	tint = new_tint;
1087	flags = (flags & ~tintFlags) | new_flags | tintSet;	419	tint_set = true;
		420
1088	return true;	421	return true;
1089	}	422	}
1090		423
1091	return false;	424	return false;
1092	}	425	}
1093		426
1094	bool	427	bool
1095	bgPixmap_t::unset_tint ()
1096	{
1097	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
1098
1099	if (new_flags != (flags & tintFlags))
1100	{
1101	flags = (flags & ~tintFlags) | new_flags;
1102	return true;
1103	}
1104
1105	return false;
1106	}
1107
1108	bool
1109	bgPixmap_t::set_shade (const char *shade_str)	428	image_effects::set_shade (const char *shade_str)
1110	{	429	{
1111	int new_shade = (shade_str) ? atoi (shade_str) : 100;	430	int new_shade = atoi (shade_str);
1112		431
1113	clamp_it (new_shade, -100, 200);	432	clamp_it (new_shade, -100, 200);
1114	if (new_shade < 0)	433	if (new_shade < 0)
1115	new_shade = 200 - (100 + new_shade);	434	new_shade = 200 - (100 + new_shade);
1116		435
1117	if (new_shade != shade)	436	if (new_shade != shade)
1118	{	437	{
1119	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
1120	shade = new_shade;	438	shade = new_shade;
1121	flags = (flags & (~tintFlags | tintSet)) | new_flags;
1122	return true;	439	return true;
1123	}	440	}
1124		441
1125	return false;	442	return false;
1126	}	443	}
1127		444
1128	static void	445	# if ENABLE_TRANSPARENCY
1129	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)	446	/*
1130	{	447	* Builds a pixmap of the same size as the terminal window that contains
1131	double sigma = radius / 2.0;
1132	double scale = sqrt (2.0 * M_PI) * sigma;
1133	double sum = 0.0;
1134
1135	for (int i = 0; i < width; i++)
1136	{
1137	double x = i - width / 2;
1138	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1139	sum += kernel[i];
1140	}
1141
1142	params[0] = XDoubleToFixed (width);
1143	params[1] = XDoubleToFixed (1);
1144
1145	for (int i = 0; i < width; i++)
1146	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1147	}
1148
1149	bool
1150	bgPixmap_t::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1151	{
1152	bool ret = false;
1153	#if XFT
1154	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1155	double *kernel = (double *)malloc (size * sizeof (double));
1156	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1157
1158	Display *dpy = target->dpy;
1159	XRenderPictureAttributes pa;
1160	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, target->visual);
1161
1162	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1163	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1164
1165	if (kernel && params && src && dst)
1166	{
1167	if (h_blurRadius)
1168	{
1169	size = h_blurRadius * 2 + 1;
1170	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1171
1172	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1173	XRenderComposite (dpy,
1174	PictOpSrc,
1175	src,
1176	None,
1177	dst,
1178	0, 0,
1179	0, 0,
1180	0, 0,
1181	width, height);
1182	}
1183
1184	if (v_blurRadius)
1185	{
1186	size = v_blurRadius * 2 + 1;
1187	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1188	swap (params[0], params[1]);
1189
1190	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1191	XRenderComposite (dpy,
1192	PictOpSrc,
1193	src,
1194	None,
1195	dst,
1196	0, 0,
1197	0, 0,
1198	0, 0,
1199	width, height);
1200	}
1201
1202	ret = true;
1203	}
1204
1205	free (kernel);
1206	free (params);
1207	XRenderFreePicture (dpy, src);
1208	XRenderFreePicture (dpy, dst);
1209	#endif
1210	return ret;
1211	}
1212
1213	bool
1214	bgPixmap_t::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1215	{
1216	Display *dpy = target->dpy;
1217	bool ret = false;
1218
1219	if (flags & tintWholesome)
1220	{
1221	XGCValues gcv;
1222	GC gc;
1223
1224	/* In this case we can tint image server-side getting significant
1225	* performance improvements, as we eliminate XImage transfer
1226	*/
1227	gcv.foreground = Pixel (tint);
1228	gcv.function = GXand;
1229	gcv.fill_style = FillSolid;
1230	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1231	if (gc)
1232	{
1233	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1234	ret = true;
1235	XFreeGC (dpy, gc);
1236	}
1237	}
1238	else
1239	{
1240	# if XFT
1241	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1242
1243	if (flags & tintSet)
1244	tint.get (c);
1245
1246	if (shade <= 100)
1247	{
1248	c.r = (c.r * shade) / 100;
1249	c.g = (c.g * shade) / 100;
1250	c.b = (c.b * shade) / 100;
1251	}
1252	else
1253	{
1254	c.r = ((0xffff - c.r) * (200 - shade)) / 100;
1255	c.g = ((0xffff - c.g) * (200 - shade)) / 100;
1256	c.b = ((0xffff - c.b) * (200 - shade)) / 100;
1257	}
1258
1259	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1260	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1261	XRenderPictureAttributes pa;
1262
1263	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1264
1265	pa.repeat = True;
1266
1267	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1268	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1269	XFreePixmap (dpy, overlay_pmap);
1270
1271	pa.component_alpha = True;
1272	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1273	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1274	XFreePixmap (dpy, mask_pmap);
1275
1276	if (mask_pic && overlay_pic && back_pic)
1277	{
1278	XRenderColor mask_c;
1279
1280	memset (&mask_c, (shade > 100) ? 0xFF : 0x0, sizeof (mask_c));
1281	mask_c.alpha = 0xffff;
1282	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1283
1284	mask_c.alpha = 0;
1285	mask_c.red = 0xffff - c.r;
1286	mask_c.green = 0xffff - c.g;
1287	mask_c.blue = 0xffff - c.b;
1288	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1289	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1290	ret = true;
1291	}
1292
1293	XRenderFreePicture (dpy, mask_pic);
1294	XRenderFreePicture (dpy, overlay_pic);
1295	XRenderFreePicture (dpy, back_pic);
1296	# if DO_TIMING_TEST
1297	XSync (dpy, False);
1298	# endif
1299	# endif
1300	}
1301
1302	return ret;
1303	}
1304
1305	/* make_transparency_pixmap()
1306	* Builds a pixmap sized the same as terminal window, with depth same as the root window
1307	* that pixmap contains tiled portion of the root pixmap that is supposed to be covered by	448	* the tiled portion of the root pixmap that is supposed to be covered by
1308	* our window.	449	* our window.
1309	*/	450	*/
1310	unsigned long	451	bool
1311	bgPixmap_t::make_transparency_pixmap ()	452	rxvt_term::render_root_image ()
1312	{	453	{
1313	unsigned long result = 0;
1314
1315	if (target == NULL)
1316	return 0;
1317
1318	/* root dimensions may change from call to call - but Display structure should	454	/* root dimensions may change from call to call - but Display structure should
1319	* be always up-to-date, so let's use it :	455	* be always up-to-date, so let's use it :
1320	*/	456	*/
1321	Window root = target->display->root;
1322	int screen = target->display->screen;	457	int screen = display->screen;
1323	Display *dpy = target->dpy;
1324	int root_width = DisplayWidth (dpy, screen);	458	int root_width = DisplayWidth (dpy, screen);
1325	int root_height = DisplayHeight (dpy, screen);	459	int root_height = DisplayHeight (dpy, screen);
1326	unsigned int root_pmap_width, root_pmap_height;
1327	int window_width = target->szHint.width;	460	int parent_width = szHint.width;
1328	int window_height = target->szHint.height;	461	int parent_height = szHint.height;
1329	int sx, sy;	462	int sx, sy;
1330	XGCValues gcv;
1331	GC gc;
1332		463
1333	TIMING_TEST_START (tp);	464	sx = parent_x;
1334	target->get_window_origin (sx, sy);	465	sy = parent_y;
		466
		467	if (!root_img)
		468	return false;
1335		469
1336	/* check if we are outside of the visible part of the virtual screen : */	470	/* check if we are outside of the visible part of the virtual screen : */
1337	if (sx + window_width <= 0 || sy + window_height <= 0	471	if (sx + parent_width <= 0 || sy + parent_height <= 0
1338	|| sx >= root_width || sy >= root_height)	472	|| sx >= root_width || sy >= root_height)
1339	return 0;	473	return 0;
1340		474
1341	if (root_pixmap != None)
1342	{
1343	/* we want to validate the pixmap and get its size at the same time : */
1344	int junk;
1345	unsigned int ujunk;
1346	/* root pixmap may be bad - allow a error */
1347	target->allowedxerror = -1;
1348
1349	if (!XGetGeometry (dpy, root_pixmap, &root, &junk, &junk, &root_pmap_width, &root_pmap_height, &ujunk, &ujunk))
1350	root_pixmap = None;
1351
1352	target->allowedxerror = 0;
1353	}
1354
1355	if (root_pixmap == None)
1356	return 0;
1357
1358	Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth);
1359
1360	if (tiled_root_pmap == None) /* something really bad happened - abort */
1361	return 0;
1362
1363	/* straightforward pixmap copy */
1364	gcv.tile = root_pixmap;
1365	gcv.fill_style = FillTiled;
1366
1367	while (sx < 0) sx += (int)root_width;	475	while (sx < 0) sx += root_img->w;
1368	while (sy < 0) sy += (int)root_height;	476	while (sy < 0) sy += root_img->h;
1369		477
1370	gcv.ts_x_origin = -sx;	478	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1371	gcv.ts_y_origin = -sy;
1372	gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1373		479
1374	if (gc)	480	if (root_effects.need_blur ())
1375	{	481	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1376	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1377	result |= transpPmapTiled;
1378	XFreeGC (dpy, gc);
1379	}
1380	TIMING_TEST_PRINT_RESULT (tp);
1381		482
1382	if (tiled_root_pmap != None)	483	if (root_effects.need_tint ())
1383	{	484	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1384	if (!need_client_side_rendering ())
1385	{
1386	if ((flags & blurNeeded))
1387	{
1388	if (blur_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height))
1389	result |= transpPmapBlurred;
1390	}
1391	if ((flags & tintNeeded))
1392	{
1393	if (tint_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height))
1394	result |= transpPmapTinted;
1395	}
1396	} /* server side rendering completed */
1397		485
1398	if (pixmap)	486	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1399	XFreePixmap (dpy, pixmap);	487	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1400		488
1401	pixmap = tiled_root_pmap;	489	delete bg_img;
1402	pmap_width = window_width;	490	bg_img = img;
1403	pmap_height = window_height;
1404	pmap_depth = root_depth;
1405	}
1406		491
1407	TIMING_TEST_PRINT_RESULT (tp);
1408
1409	return result;
1410	}
1411
1412	bool
1413	bgPixmap_t::set_root_pixmap ()
1414	{
1415	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1416	if (new_root_pixmap == None)
1417	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1418
1419	if (new_root_pixmap != root_pixmap)
1420	{
1421	root_pixmap = new_root_pixmap;
1422	return true;	492	return true;
1423	}	493	}
1424		494
1425	return false;	495	void
		496	rxvt_term::bg_set_root_pixmap ()
		497	{
		498	delete root_img;
		499	root_img = rxvt_img::new_from_root (this);
1426	}	500	}
1427	# endif /* ENABLE_TRANSPARENCY */	501	# endif /* ENABLE_TRANSPARENCY */
1428		502
1429	# ifndef HAVE_AFTERIMAGE	503	void
1430	static void ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm);	504	rxvt_term::bg_render ()
1431	# endif
1432
1433	bool
1434	bgPixmap_t::render ()
1435	{	505	{
1436	unsigned long background_flags = 0;	506	if (bg_flags & BG_INHIBIT_RENDER)
1437
1438	if (target == NULL)
1439	return false;	507	return;
1440		508
1441	TIMING_TEST_START (tp);
1442
1443	invalidate ();	509	bg_invalidate ();
1444	# ifdef ENABLE_TRANSPARENCY	510	# if ENABLE_TRANSPARENCY
1445	if (flags & isTransparent)	511	if (bg_flags & BG_IS_TRANSPARENT)
1446	{	512	{
1447	/* we need to re-generate transparency pixmap in that case ! */	513	/* we need to re-generate transparency pixmap in that case ! */
1448	background_flags = make_transparency_pixmap ();	514	if (render_root_image ())
1449	if (background_flags == 0)	515	bg_flags |= BG_IS_VALID;
1450	return false;
1451	else if ((background_flags & transpTransformations) == (flags & transpTransformations)
1452	&& pmap_depth == target->depth)
1453	flags = flags & ~isInvalid;
1454	}	516	}
1455	# endif	517	# endif
1456		518
1457	# ifdef BG_IMAGE_FROM_FILE	519	# if BG_IMAGE_FROM_FILE
1458	if (have_image	520	if (fimage.img)
1459	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1460	{
1461	if (render_image (background_flags))
1462	flags = flags & ~isInvalid;
1463	}	521	{
1464	# endif	522	if (render_image (fimage))
1465		523	bg_flags |= BG_IS_VALID;
1466	XImage *result = NULL;
1467
1468	if (background_flags && (flags & isInvalid))
1469	{	524	}
1470	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1471	}
1472
1473	if (result)
1474	{
1475	# if !defined(HAVE_AFTERIMAGE) && !XFT
1476	/* our own client-side tinting */
1477	/* ATTENTION: We ASSUME that XFT will let us do all the tinting necessary server-side.
1478	This may need to be changed in need_client_side_rendering() logic is altered !!! */
1479	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
1480	{
1481	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1482	if (flags & tintSet)
1483	tint.get (c);
1484	ShadeXImage (target, result, shade, c.r, c.g, c.b);
1485	}
1486	# endif	525	# endif
1487		526
1488	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);	527	if (!(bg_flags & BG_IS_VALID))
1489
1490	if (gc)
1491	{
1492	if (/*pmap_depth != target->depth &&*/ pixmap != None)
1493	{
1494	XFreePixmap (target->dpy, pixmap);
1495	pixmap = None;
1496	}
1497
1498	if (pixmap == None)
1499	{
1500	pixmap = XCreatePixmap (target->dpy, target->vt, result->width, result->height, target->depth);
1501	pmap_width = result->width;
1502	pmap_height = result->height;
1503	pmap_depth = target->depth;
1504	}
1505
1506	if (pmap_depth != result->depth)
1507	{
1508	/* Bad Match error will ensue ! stupid X !!!! */
1509	if (result->depth == 24 && pmap_depth == 32)
1510	result->depth = 32;
1511	else if (result->depth == 32 && pmap_depth == 24)
1512	result->depth = 24;
1513	else
1514	{
1515	/* TODO: implement image recoding */
1516	}
1517	}
1518
1519	if (pmap_depth == result->depth)
1520	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1521
1522	XFreeGC (target->dpy, gc);
1523	flags = flags & ~isInvalid;
1524	}
1525
1526	XDestroyImage (result);
1527	}	528	{
1528		529	delete bg_img;
1529	if (flags & isInvalid)	530	bg_img = 0;
1530	{	531	}
1531	if (pixmap != None)
1532	{
1533	XFreePixmap (target->dpy, pixmap);
1534	pixmap = None;
1535	}
1536	}
1537		532
1538	apply ();	533	scr_recolour (false);
		534	bg_flags |= BG_NEEDS_REFRESH;
1539		535
1540	XSync (target->dpy, False);
1541	valid_since = ev::now ();	536	bg_valid_since = ev::now ();
1542
1543	TIMING_TEST_PRINT_RESULT (tp);
1544
1545	return true;
1546	}	537	}
1547		538
1548	bool	539	void
1549	bgPixmap_t::set_target (rxvt_term *new_target)	540	rxvt_term::bg_init ()
1550	{	541	{
1551	if (new_target)
1552	if (target != new_target)
1553	{
1554	target = new_target;
1555	# ifdef ENABLE_TRANSPARENCY	542	#if ENABLE_TRANSPARENCY
1556	root_depth = DefaultDepthOfScreen (ScreenOfDisplay (target->dpy, target->display->screen));	543	if (option (Opt_transparent))
		544	{
		545	bg_set_transparent ();
		546
		547	if (rs [Rs_blurradius])
		548	root_effects.set_blur (rs [Rs_blurradius]);
		549
		550	if (ISSET_PIXCOLOR (Color_tint))
		551	root_effects.set_tint (pix_colors_focused [Color_tint]);
		552
		553	if (rs [Rs_shade])
		554	root_effects.set_shade (rs [Rs_shade]);
		555
		556	bg_set_root_pixmap ();
		557	XSelectInput (dpy, display->root, PropertyChangeMask);
		558	rootwin_ev.start (display, display->root);
		559	}
1557	# endif	560	#endif
1558	return true;	561
		562	#if BG_IMAGE_FROM_FILE
		563	if (rs[Rs_backgroundPixmap])
		564	{
		565	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
		566	if (!bg_window_position_sensitive ())
		567	update_background ();
1559	}	568	}
1560
1561	return false;
1562	}
1563
1564	void
1565	bgPixmap_t::apply ()
1566	{
1567	if (target)
1568	{
1569	flags &= ~isVtOrigin;
1570
1571	if (pixmap != None)
1572	{
1573	/* set target's background to pixmap */
1574	# ifdef ENABLE_TRANSPARENCY
1575	if (flags & isTransparent)
1576	{
1577	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1578	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1579
1580	if (target->scrollBar.win)
1581	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1582	}
1583	else
1584	# endif	569	#endif
1585	{	570	}
1586	flags |= isVtOrigin;
1587	/* force old pixmap dereference in case it was transparent before :*/
1588	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1589	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1590	/* do we also need to set scrollbar's background here ? */
1591		571
1592	if (target->scrollBar.win)	572	void
1593	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);	573	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1594	}	574	{
1595	}	575	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		576
		577	if (tint_set)
		578	tint.get (c);
		579
		580	if (shade > 100)
		581	{
		582	c.r = c.r * (200 - shade) / 100;
		583	c.g = c.g * (200 - shade) / 100;
		584	c.b = c.b * (200 - shade) / 100;
		585	}
1596	else	586	else
1597	{	587	{
1598	/* set target background to a pixel */	588	c.r = c.r * shade / 100;
1599	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);	589	c.g = c.g * shade / 100;
1600	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);	590	c.b = c.b * shade / 100;
1601	/* do we also need to set scrollbar's background here ? */	591	}
1602	if (target->scrollBar.win)
1603	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1604	}
1605		592
1606	/* don't want Expose on the parent or vt. It is better to use	593	img->contrast (c.r, c.g, c.b, c.a);
1607	scr_touch or we get a great deal of flicker otherwise: */
1608	XClearWindow (target->dpy, target->parent[0]);
1609		594
1610	if (target->scrollBar.state && target->scrollBar.win)	595	if (shade > 100)
1611	{	596	{
1612	target->scrollBar.state = STATE_IDLE;	597	c.a = 0xffff;
1613	target->scrollBar.show (0);	598	c.r =
1614	}	599	c.g =
1615		600	c.b = 0xffff * (shade - 100) / 100;
1616	target->want_refresh = 1;	601	img->brightness (c.r, c.g, c.b, c.a);
1617	flags |= hasChanged;
1618	}	602	}
1619	}	603	}
1620		604
1621	#endif /* HAVE_BG_PIXMAP */	605	#endif /* HAVE_BG_PIXMAP */
1622
1623	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) && !XFT
1624	/* taken from aterm-0.4.2 */
1625
1626	typedef uint32_t RUINT32T;
1627
1628	static void
1629	ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm)
1630	{
1631	int sh_r, sh_g, sh_b;
1632	RUINT32T mask_r, mask_g, mask_b;
1633	RUINT32T *lookup, *lookup_r, *lookup_g, *lookup_b;
1634	unsigned int lower_lim_r, lower_lim_g, lower_lim_b;
1635	unsigned int upper_lim_r, upper_lim_g, upper_lim_b;
1636	int i;
1637
1638	Visual *visual = term->visual;
1639
1640	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return ;
1641
1642	/* for convenience */
1643	mask_r = visual->red_mask;
1644	mask_g = visual->green_mask;
1645	mask_b = visual->blue_mask;
1646
1647	/* boring lookup table pre-initialization */
1648	switch (srcImage->bits_per_pixel) {
1649	case 15:
1650	if ((mask_r != 0x7c00) ||
1651	(mask_g != 0x03e0) ||
1652	(mask_b != 0x001f))
1653	return;
1654	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32));
1655	lookup_r = lookup;
1656	lookup_g = lookup+32;
1657	lookup_b = lookup+32+32;
1658	sh_r = 10;
1659	sh_g = 5;
1660	sh_b = 0;
1661	break;
1662	case 16:
1663	if ((mask_r != 0xf800) ||
1664	(mask_g != 0x07e0) ||
1665	(mask_b != 0x001f))
1666	return;
1667	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32));
1668	lookup_r = lookup;
1669	lookup_g = lookup+32;
1670	lookup_b = lookup+32+64;
1671	sh_r = 11;
1672	sh_g = 5;
1673	sh_b = 0;
1674	break;
1675	case 24:
1676	if ((mask_r != 0xff0000) ||
1677	(mask_g != 0x00ff00) ||
1678	(mask_b != 0x0000ff))
1679	return;
1680	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1681	lookup_r = lookup;
1682	lookup_g = lookup+256;
1683	lookup_b = lookup+256+256;
1684	sh_r = 16;
1685	sh_g = 8;
1686	sh_b = 0;
1687	break;
1688	case 32:
1689	if ((mask_r != 0xff0000) ||
1690	(mask_g != 0x00ff00) ||
1691	(mask_b != 0x0000ff))
1692	return;
1693	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1694	lookup_r = lookup;
1695	lookup_g = lookup+256;
1696	lookup_b = lookup+256+256;
1697	sh_r = 16;
1698	sh_g = 8;
1699	sh_b = 0;
1700	break;
1701	default:
1702	return; /* we do not support this color depth */
1703	}
1704
1705	/* prepare limits for color transformation (each channel is handled separately) */
1706	if (shade > 100) {
1707	shade = 200 - shade;
1708
1709	lower_lim_r = 65535-rm;
1710	lower_lim_g = 65535-gm;
1711	lower_lim_b = 65535-bm;
1712
1713	lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100);
1714	lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100);
1715	lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100);
1716
1717	upper_lim_r = upper_lim_g = upper_lim_b = 65535;
1718	} else {
1719
1720	lower_lim_r = lower_lim_g = lower_lim_b = 0;
1721
1722	upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100);
1723	upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100);
1724	upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100);
1725	}
1726
1727	/* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */
1728	if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000 ))
1729	{
1730	unsigned int tmp;
1731
1732	tmp = lower_lim_r;
1733	lower_lim_r = lower_lim_b;
1734	lower_lim_b = tmp;
1735
1736	tmp = upper_lim_r;
1737	upper_lim_r = upper_lim_b;
1738	upper_lim_b = tmp;
1739	}
1740
1741	/* fill our lookup tables */
1742	for (i = 0; i <= mask_r>>sh_r; i++)
1743	{
1744	RUINT32T tmp;
1745	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r));
1746	tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r);
1747	lookup_r[i] = (tmp/65535)<<sh_r;
1748	}
1749	for (i = 0; i <= mask_g>>sh_g; i++)
1750	{
1751	RUINT32T tmp;
1752	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g));
1753	tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g);
1754	lookup_g[i] = (tmp/65535)<<sh_g;
1755	}
1756	for (i = 0; i <= mask_b>>sh_b; i++)
1757	{
1758	RUINT32T tmp;
1759	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b));
1760	tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b);
1761	lookup_b[i] = (tmp/65535)<<sh_b;
1762	}
1763
1764	/* apply table to input image (replacing colors by newly calculated ones) */
1765	switch (srcImage->bits_per_pixel)
1766	{
1767	case 15:
1768	{
1769	unsigned short *p1, *pf, *p, *pl;
1770	p1 = (unsigned short *) srcImage->data;
1771	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1772	while (p1 < pf)
1773	{
1774	p = p1;
1775	pl = p1 + srcImage->width;
1776	for (; p < pl; p++)
1777	{
1778	*p = lookup_r[(*p & 0x7c00)>>10] |
1779	lookup_g[(*p & 0x03e0)>> 5] |
1780	lookup_b[(*p & 0x001f)];
1781	}
1782	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1783	}
1784	break;
1785	}
1786	case 16:
1787	{
1788	unsigned short *p1, *pf, *p, *pl;
1789	p1 = (unsigned short *) srcImage->data;
1790	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1791	while (p1 < pf)
1792	{
1793	p = p1;
1794	pl = p1 + srcImage->width;
1795	for (; p < pl; p++)
1796	{
1797	*p = lookup_r[(*p & 0xf800)>>11] |
1798	lookup_g[(*p & 0x07e0)>> 5] |
1799	lookup_b[(*p & 0x001f)];
1800	}
1801	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1802	}
1803	break;
1804	}
1805	case 24:
1806	{
1807	unsigned char *p1, *pf, *p, *pl;
1808	p1 = (unsigned char *) srcImage->data;
1809	pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1810	while (p1 < pf)
1811	{
1812	p = p1;
1813	pl = p1 + srcImage->width * 3;
1814	for (; p < pl; p += 3)
1815	{
1816	p[0] = lookup_r[(p[0] & 0xff0000)>>16];
1817	p[1] = lookup_r[(p[1] & 0x00ff00)>> 8];
1818	p[2] = lookup_r[(p[2] & 0x0000ff)];
1819	}
1820	p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line);
1821	}
1822	break;
1823	}
1824	case 32:
1825	{
1826	RUINT32T *p1, *pf, *p, *pl;
1827	p1 = (RUINT32T *) srcImage->data;
1828	pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1829
1830	while (p1 < pf)
1831	{
1832	p = p1;
1833	pl = p1 + srcImage->width;
1834	for (; p < pl; p++)
1835	{
1836	*p = lookup_r[(*p & 0xff0000)>>16] |
1837	lookup_g[(*p & 0x00ff00)>> 8] |
1838	lookup_b[(*p & 0x0000ff)] |
1839	(*p & ~0xffffff);
1840	}
1841	p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line);
1842	}
1843	break;
1844	}
1845	}
1846
1847	free (lookup);
1848	}
1849	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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