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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.83 by sf-exg, Thu Oct 14 17:39:42 2010 UTC vs.
Revision 1.254 by sf-exg, Sun Dec 30 20:28:31 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 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* 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
11	* 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
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
20	* 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
21	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
24		24
25	#include <cmath>
26	#include "../config.h" /* NECESSARY */	25	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	26	#include "rxvt.h" /* NECESSARY */
28		27
29	#define DO_TIMING_TEST 0
30
31	#if DO_TIMING_TEST
32	# include <sys/time.h>
33	#define TIMING_TEST_START(id) \
34	struct timeval timing_test_##id##_stv; \
35	gettimeofday (&timing_test_##id##_stv, NULL);
36
37	#define TIMING_TEST_PRINT_RESULT(id) \
38	do { \
39	struct timeval tv; \
40	gettimeofday (&tv, NULL); \
41	tv.tv_sec -= (timing_test_##id##_stv).tv_sec; \
42	fprintf (stderr, "%s: %s: %d: elapsed %ld usec\n", #id, __FILE__, __LINE__, \
43	tv.tv_sec * 1000000 + tv.tv_usec - (timing_test_##id##_stv).tv_usec); \
44	} while (0)
45
46	#else
47	#define TIMING_TEST_START(id) do {} while (0)
48	#define TIMING_TEST_PRINT_RESULT(id) do {} while (0)
49	#endif
50
51	/*
52	* Pixmap geometry string interpretation :
53	* Each geometry string contains zero or one scale/position
54	* adjustment and may optionally be followed by a colon and one or more
55	* colon-delimited pixmap operations.
56	* The following table shows the valid geometry strings and their
57	* effects on the background image :
58	*
59	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
60	* W and H are percentages of the terminal window size.
61	* X and Y are also percentages; e.g., +50+50 centers
62	* the image in the window.
63	* WxH+X Assumes Y == X
64	* WxH Assumes Y == X == 50 (centers the image)
65	* W+X+Y Assumes H == W
66	* W+X Assumes H == W and Y == X
67	* W Assumes H == W and Y == X == 50
68	*
69	* Adjusting position only :
70	* =+X+Y Set position to X% by Y% (absolute).
71	* =+X Set position to X% by X%.
72	* +X+Y Adjust position horizontally X% and vertically Y%
73	* from current position (relative).
74	* +X Adjust position horizontally X% and vertically X%
75	* from current position.
76	*
77	* Adjusting scale only :
78	* Wx0 Multiply horizontal scaling factor by W%
79	* 0xH Multiply vertical scaling factor by H%
80	* 0x0 No scaling (show image at normal size).
81	*
82	* Pixmap Operations : (should be prepended by a colon)
83	* tile Tile image. Scaling/position modifiers above will affect
84	* the tile size and origin.
85	* propscale When scaling, scale proportionally. That is, maintain the
86	* proper aspect ratio for the image. Any portion of the
87	* background not covered by the image is filled with the
88	* current background color.
89	* hscale Scale horizontally, tile vertically ?
90	* vscale Tile horizontally, scale vertically ?
91	* scale Scale both up and down
92	* auto Same as 100x100+50+50
93	*/
94
95	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
96	bgPixmap_t::bgPixmap_t ()	29
		30	void
		31	rxvt_term::bg_destroy ()
97	{	32	{
98	// this is basically redundant as bgPixmap_t is only used in	33	# if BG_IMAGE_FROM_ROOT
99	// zero_initialised-derived structs	34	delete root_img;
100	#ifdef HAVE_AFTERIMAGE	35	root_img = 0;
101	original_asim = NULL;
102	#endif	36	# endif
103	#ifdef HAVE_PIXBUF	37
104	pixbuf = NULL;	38	# if BG_IMAGE_FROM_FILE
		39	fimage.destroy ();
105	#endif	40	# endif
		41	}
		42
		43	bool
		44	rxvt_term::bg_window_size_sensitive ()
		45	{
106	#ifdef BG_IMAGE_FROM_FILE	46	# if BG_IMAGE_FROM_ROOT
107	have_image = false;	47	if (root_img)
108	h_scale = v_scale = 0;
109	h_align = v_align = 0;
110	#endif
111	#ifdef ENABLE_TRANSPARENCY
112	shade = 100;
113	#endif
114	flags = 0;
115	pixmap = None;
116	valid_since = invalid_since = 0;
117	target = 0;
118	}
119
120	void
121	bgPixmap_t::destroy ()
122	{
123	#ifdef HAVE_AFTERIMAGE
124	if (original_asim)
125	safe_asimage_destroy (original_asim);
126	#endif
127
128	#ifdef HAVE_PIXBUF
129	if (pixbuf)
130	g_object_unref (pixbuf);
131	#endif
132
133	if (pixmap && target)
134	XFreePixmap (target->dpy, pixmap);
135	}
136
137	bool
138	bgPixmap_t::window_size_sensitive ()
139	{
140	# ifdef ENABLE_TRANSPARENCY
141	if (flags & isTransparent)
142	return true;	48	return true;
143	# endif	49	# endif
144		50
145	# ifdef BG_IMAGE_FROM_FILE	51	# if BG_IMAGE_FROM_FILE
146	if (have_image)	52	if (fimage.img)
147	{	53	{
148	if (flags & sizeSensitive)	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
149	return true;	57	return true;
150	}	58	}
151	# endif	59	# endif
152		60
153	return false;	61	return false;
154	}	62	}
155		63
156	bool	64	bool
157	bgPixmap_t::window_position_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
158	{	66	{
159	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
160	if (flags & isTransparent)	68	if (root_img)
161	return true;	69	return true;
162	# endif	70	# endif
163		71
164	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
165	if (have_image)	73	if (fimage.img)
166	{	74	{
167	if (flags & rootAlign)	75	if (fimage.flags & IM_ROOT_ALIGN)
168	return true;	76	return true;
169	}	77	}
170	# endif	78	# endif
171		79
172	return false;	80	return false;
173	};
174
175	bool bgPixmap_t::need_client_side_rendering ()
176	{
177	# ifdef HAVE_AFTERIMAGE
178	if (original_asim)
179	return true;
180	# endif
181	return false;
182	}	81	}
183		82
184	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
185	static inline bool
186	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
187	{
188	if (geom_flags & flag)
189	{
190	if (new_value > 1000)
191	new_value = 1000;
192	if (new_value != scale)
193	{
194	scale = new_value;
195	return true;
196	}
197	}
198	return false;
199	}
200
201	static inline bool
202	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
203	{
204	if (geom_flags & flag)
205	{
206	if (new_value < -100)
207	new_value = -100;
208	else if (new_value > 200)
209	new_value = 200;
210	if (new_value != align)
211	{
212	align = new_value;
213	return true;
214	}
215	}
216	return false;
217	}
218
219	static inline int	84	static inline int
220	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
221	{	86	{
222	int diff = window_size - image_size;
223	int smaller = min (image_size, window_size);
224
225	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
226	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
227	else if (align > 100 && align <= 200 )	89	else if (align > 100)
228	return ((align - 100) * smaller / 100) + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
229	else if (align >= -100 && align < 0)	91	else
230	return ((align + 100) * smaller / 100) - image_size;	92	return lerp (-image_size, 0, align + 100);
231	return 0;
232	}	93	}
233		94
234	static inline int	95	static void
235	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	96	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
236	{	97	{
237	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
238	dst_pos = pos;
239	dst_size = size;
240	if (pos < 0)
241	{
242	src_pos = -pos;
243	dst_pos = 0;
244	dst_size += pos;
245	}	99	{
246		100	flags = IM_TILE;
247	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
248	dst_size = target_size - dst_pos;	102	x = y = 0;
249	return src_pos;	103	}
		104	else if (!strcasecmp (style, "aspect-stretched"))
		105	{
		106	flags = IM_KEEP_ASPECT;
		107	w = h = windowScale;
		108	x = y = centerAlign;
		109	}
		110	else if (!strcasecmp (style, "stretched"))
		111	{
		112	flags = 0;
		113	w = h = windowScale;
		114	x = y = centerAlign;
		115	}
		116	else if (!strcasecmp (style, "centered"))
		117	{
		118	flags = 0;
		119	w = h = noScale;
		120	x = y = centerAlign;
		121	}
		122	else if (!strcasecmp (style, "root-tiled"))
		123	{
		124	flags = IM_TILE|IM_ROOT_ALIGN;
		125	w = h = noScale;
		126	x = y = 0;
		127	}
250	}	128	}
251		129
252	bool	130	bool
253	bgPixmap_t::set_geometry (const char *geom)	131	rxvt_image::set_geometry (const char *geom, bool update)
254	{	132	{
		133	bool changed = false;
255	int geom_flags = 0, changed = 0;	134	int geom_flags = 0;
256	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
257	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
258	unsigned int n;	138	unsigned int h = v_scale;
259	unsigned long new_flags = (flags & (~geometryFlags));	139	uint8_t new_flags = 0;
260	const char *p;
261	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
262		140
263	if (geom == NULL)	141	if (geom == NULL)
264	return false;	142	return false;
265		143
266	char str[MAXLEN_GEOM];	144	if (geom[0])
267
268	while (isspace(*geom)) ++geom;
269	if ((p = strchr (geom, ';')) == NULL)
270	p = strchr (geom, '\0');
271
272	n = (p - geom);
273	if (n < MAXLEN_GEOM)
274	{	145	{
275	char *ops;	146	char **arr = rxvt_strsplit (':', geom);
276	new_flags |= geometrySet;
277		147
278	memcpy (str, geom, n);	148	for (int i = 0; arr[i]; i++)
279	str[n] = '\0';
280	if (str[0] == ':')
281	ops = &str[0];
282	else if (str[0] != 'x' && str[0] != 'X' && isalpha(str[0]))
283	ops = &str[0];
284	else
285	{	149	{
286	char *tmp;	150	if (!strncasecmp (arr[i], "style=", 6))
287	ops = strchr (str, ':');
288	if (ops != NULL)
289	{
290	for (tmp = ops-1; tmp >= str && isspace(*tmp); --tmp);
291	*(++tmp) = '\0';
292	if (ops == tmp) ++ops;
293	}	151	{
294	}	152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
295
296	if (ops > str || ops == NULL)
297	{
298	/* we have geometry string - let's handle it prior to applying ops */
299	geom_flags = XParseGeometry (str, &x, &y, &w, &h);
300
301	if ((geom_flags & XValue) && !(geom_flags & YValue))
302	{
303	y = x;
304	geom_flags |= YValue;
305	}
306
307	if (flags & geometrySet)
308	{
309	/* new geometry is an adjustment to the old one ! */
310	if ((geom_flags & WidthValue) && (geom_flags & HeightValue))
311	{
312	if (w == 0 && h != 0)
313	{
314	w = h_scale;
315	h = (v_scale * h) / 100;
316	}
317	else if (h == 0 && w != 0)
318	{
319	w = (h_scale * w) / 100;
320	h = v_scale;
321	}
322	}
323	if (geom_flags & XValue)
324	{
325	if (str[0] != '=')
326	{
327	y += v_align;
328	x += h_align;
329	}
330	}
331	}
332	else /* setting up geometry from scratch */
333	{
334	if (!(geom_flags & XValue))
335	{
336	/* use default geometry - centered */
337	x = y = defaultAlign;
338	}
339	else if (!(geom_flags & YValue))
340	y = x;
341
342	if ((geom_flags & (WidthValue|HeightValue)) == 0)
343	{
344	/* use default geometry - scaled */
345	w = h = defaultScale;
346	}
347	else if (geom_flags & WidthValue)
348	{
349	if (!(geom_flags & HeightValue))
350	h = w;
351	}
352	else
353	w = h;
354	}
355	} /* done parsing geometry string */
356	else if (!(flags & geometrySet))
357	{
358	/* default geometry - scaled and centered */
359	x = y = defaultAlign;
360	w = h = defaultScale;
361	}
362
363	if (!(flags & geometrySet))
364	geom_flags |= WidthValue|HeightValue|XValue|YValue;	153	geom_flags = WidthValue|HeightValue|XValue|YValue;
365
366	if (ops)
367	{
368	while (*ops)
369	{	154	}
370	while (*ops == ':' || isspace(*ops)) ++ops;	155	else if (!strcasecmp (arr[i], "op=tile"))
		156	new_flags |= IM_TILE;
		157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		158	new_flags |= IM_KEEP_ASPECT;
		159	else if (!strcasecmp (arr[i], "op=root-align"))
		160	new_flags |= IM_ROOT_ALIGN;
371		161
372	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)	162	// deprecated
373	if (CHECK_GEOM_OPS ("tile"))	163	else if (!strcasecmp (arr[i], "tile"))
374	{	164	{
		165	new_flags |= IM_TILE;
375	w = h = noScale;	166	w = h = noScale;
376	geom_flags |= WidthValue|HeightValue;	167	geom_flags |= WidthValue|HeightValue;
377	}	168	}
378	else if (CHECK_GEOM_OPS ("propscale"))	169	else if (!strcasecmp (arr[i], "propscale"))
379	{	170	{
380	new_flags |= propScale;	171	new_flags |= IM_KEEP_ASPECT;
381	}
382	else if (CHECK_GEOM_OPS ("hscale"))
383	{
384	if (w == 0) w = windowScale;
385
386	h = noScale;	172	w = h = windowScale;
387	geom_flags |= WidthValue|HeightValue;	173	geom_flags |= WidthValue|HeightValue;
388	}	174	}
389	else if (CHECK_GEOM_OPS ("vscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
390	{	176	{
		177	new_flags |= IM_TILE;
391	if (h == 0) h = windowScale;	178	w = windowScale;
392
393	w = noScale;	179	h = noScale;
394	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
395	}	181	}
396	else if (CHECK_GEOM_OPS ("scale"))	182	else if (!strcasecmp (arr[i], "vscale"))
397	{	183	{
		184	new_flags |= IM_TILE;
398	if (h == 0) h = windowScale;	185	h = windowScale;
399	if (w == 0) w = windowScale;	186	w = noScale;
400
401	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
402	}	188	}
403	else if (CHECK_GEOM_OPS ("auto"))	189	else if (!strcasecmp (arr[i], "scale"))
404	{	190	{
405	w = h = windowScale;	191	w = h = windowScale;
		192	geom_flags |= WidthValue|HeightValue;
		193	}
		194	else if (!strcasecmp (arr[i], "auto"))
		195	{
		196	w = h = windowScale;
406	x = y = centerAlign;	197	x = y = centerAlign;
407	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
408	}	199	}
409	else if (CHECK_GEOM_OPS ("root"))	200	else if (!strcasecmp (arr[i], "root"))
410	{	201	{
411	new_flags |= rootAlign;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
412	w = h = noScale;	203	w = h = noScale;
413	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
414	}	205	}
415	# undef CHECK_GEOM_OPS
416		206
417	while (*ops != ':' && *ops != '\0') ++ops;	207	else
		208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
418	} /* done parsing ops */	209	} /* done parsing ops */
419	}
420		210
421	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) ++changed;	211	rxvt_free_strsplit (arr);
422	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) ++changed;	212	}
423	if (check_set_align_value (geom_flags, XValue, h_align, x)) ++changed;	213
424	if (check_set_align_value (geom_flags, YValue, v_align, y)) ++changed;	214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
		215
		216	if (!update)
425	}	217	{
		218	if (!(geom_flags & XValue))
		219	x = y = defaultAlign;
		220	else if (!(geom_flags & YValue))
		221	y = x;
426		222
427	if (new_flags != flags)	223	if (!(geom_flags & (WidthValue|HeightValue)))
		224	w = h = defaultScale;
		225	else if (!(geom_flags & HeightValue))
		226	h = w;
		227	else if (!(geom_flags & WidthValue))
		228	w = h;
		229	}
		230
		231	clamp_it (x, -100, 200);
		232	clamp_it (y, -100, 200);
		233
		234	if (flags != new_flags
		235	|| h_scale != w
		236	|| v_scale != h
		237	|| h_align != x
		238	|| v_align != y)
428	{	239	{
429	flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
430	changed++;	245	changed = true;
431	}	246	}
432		247
433	//fprintf (stderr, "flags = %lX, scale = %ux%u, align=%+d%+d\n",	248	if (is_size_sensitive ())
434	// flags, h_scale, v_scale, h_align, v_align);	249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
435	return (changed > 0);	253	return changed;
436	}	254	}
437		255
438	void	256	void
439	bgPixmap_t::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	257	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
440	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
441	int target_width = target->szHint.width;	261	int parent_width = szHint.width;
442	int target_height = target->szHint.height;	262	int parent_height = szHint.height;
		263	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		264	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
443		265
444	if (flags & propScale)	266	w = h_scale * parent_width / 100;
		267	h = v_scale * parent_height / 100;
		268
		269	if (image.flags & IM_KEEP_ASPECT)
445	{	270	{
446	float scale = (float)target_width / image_width;	271	float scale = (float)w / image_width;
447	min_it (scale, (float)target_height / image_height);	272	min_it (scale, (float)h / image_height);
448	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
449	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
450	}	275	}
451	else
452	{
453	w = h_scale * target_width / 100;
454	h = v_scale * target_height / 100;
455	}
456		276
457	if (!w) w = image_width;	277	if (!w) w = image_width;
458	if (!h) h = image_height;	278	if (!h) h = image_height;
459		279
460	if (flags & rootAlign)	280	if (image.flags & IM_ROOT_ALIGN)
461	{	281	{
462	target->get_window_origin (x, y);
463	x = -x;	282	x = -parent_x;
464	y = -y;	283	y = -parent_y;
465	}	284	}
466	else	285	else
467	{	286	{
468	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
469	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
470	}
471
472	flags &= ~sizeSensitive;
473	if (h_scale != 0 || v_scale != 0
474	|| h_align != 0 || v_align != 0
475	|| w > target_width || h > target_height)
476	flags |= sizeSensitive;
477	}
478
479	# ifdef HAVE_AFTERIMAGE
480	bool
481	bgPixmap_t::render_image (unsigned long background_flags)
482	{
483	if (target == NULL)
484	return false;
485
486	target->init_asv ();
487
488	ASImage *background = NULL;
489	ARGB32 background_tint = TINT_LEAVE_SAME;
490
491	# ifdef ENABLE_TRANSPARENCY
492	if (background_flags)
493	background = pixmap2ximage (target->asv, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, 100);
494
495	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
496	{	289	}
497	ShadingInfo as_shade;	290	}
498	as_shade.shading = shade;
499		291
500	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	292	bool
501	if (flags & tintSet)	293	rxvt_term::render_image (rxvt_image &image)
502	tint.get (c);	294	{
503	as_shade.tintColor.red = c.r;
504	as_shade.tintColor.green = c.g;
505	as_shade.tintColor.blue = c.b;
506
507	background_tint = shading2tint32 (&as_shade);
508	}
509
510	if (!(background_flags & transpPmapBlurred) && (flags & blurNeeded) && background != NULL)
511	{
512	ASImage *tmp = blur_asimage_gauss (target->asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
513	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
514	100, ASIMAGE_QUALITY_DEFAULT);
515	if (tmp)
516	{
517	destroy_asimage (&background);
518	background = tmp;
519	}
520	}
521	# endif
522
523	ASImage *result = 0;
524
525	int target_width = target->szHint.width;	295	int parent_width = szHint.width;
526	int target_height = target->szHint.height;	296	int parent_height = szHint.height;
527	int new_pmap_width = target_width;
528	int new_pmap_height = target_height;
529		297
530	int x = 0;	298	int x = 0;
531	int y = 0;	299	int y = 0;
532	int w = 0;	300	int w = 0;
533	int h = 0;	301	int h = 0;
534		302
535	TIMING_TEST_START (asim);	303	get_image_geometry (image, w, h, x, y);
536		304
537	if (original_asim)	305	if (!(image.flags & IM_ROOT_ALIGN)
538	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
539
540	if (!original_asim
541	|| (!(flags & rootAlign)
542	&& (x >= target_width	306	&& (x >= parent_width
543	|| y >= target_height	307	|| y >= parent_height
544	|| (x + w <= 0)	308	|| x + w <= 0
545	|| (y + h <= 0))))	309	|| y + h <= 0))
546	{	310	return false;
547	if (background)
548	{
549	new_pmap_width = background->width;
550	new_pmap_height = background->height;
551	result = background;
552		311
553	if (background_tint != TINT_LEAVE_SAME)	312	rxvt_img *img = image.img->scale (w, h);
554	{	313
555	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,	314	if (image.flags & IM_TILE)
556	target_width, target_height, background_tint,	315	img->repeat_mode (RepeatNormal);
557	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
558	if (tmp)
559	result = tmp;
560	}
561	}
562	else
563	new_pmap_width = new_pmap_height = 0;
564	}
565	else	316	else
566	{	317	img->repeat_mode (RepeatNone);
567	result = original_asim;	318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
568		319
569	if ((w != original_asim->width)	320	if (bg_img)
570	|| (h != original_asim->height))	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
571	{
572	result = scale_asimage (target->asv, original_asim,
573	w, h,
574	background ? ASA_ASImage : ASA_XImage,
575	100, ASIMAGE_QUALITY_DEFAULT);
576	}
577		322
578	if (background == NULL)	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
579	{	324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
580	if (h_scale == 0 || v_scale == 0)
581	{
582	/* if tiling - pixmap has to be sized exactly as the image,
583	but there is no need to make it bigger than the window! */
584	new_pmap_width = min (result->width, target_width);
585	new_pmap_height = min (result->height, target_height);
586		325
587	/* we also need to tile our image in both directions */	326	delete bg_img;
588	ASImage *tmp = tile_asimage (target->asv, result,	327	bg_img = img;
589	(int)result->width - x,
590	(int)result->height - y,
591	new_pmap_width,
592	new_pmap_height,
593	TINT_LEAVE_SAME, ASA_XImage,
594	100, ASIMAGE_QUALITY_DEFAULT);
595	if (tmp)
596	{
597	if (result != original_asim)
598	destroy_asimage (&result);
599		328
600	result = tmp;
601	}
602	}
603	}
604	else
605	{
606	/* if blending background and image - pixmap has to be sized same as target window */
607	ASImageLayer *layers = create_image_layers (2);
608
609	layers[0].im = background;
610	layers[0].clip_width = target_width;
611	layers[0].clip_height = target_height;
612	layers[0].tint = background_tint;
613	layers[1].im = result;
614
615	if (h_scale == 0 || v_scale == 0)
616	{
617	/* tile horizontally */
618	while (x > 0) x -= (int)result->width;
619	layers[1].dst_x = x;
620	layers[1].clip_width = result->width+target_width;
621	}
622	else
623	{
624	/* clip horizontally */
625	layers[1].dst_x = x;
626	layers[1].clip_width = result->width;
627	}
628
629	if (h_scale == 0 || v_scale == 0)
630	{
631	while (y > 0) y -= (int)result->height;
632	layers[1].dst_y = y;
633	layers[1].clip_height = result->height + target_height;
634	}
635	else
636	{
637	layers[1].dst_y = y;
638	layers[1].clip_height = result->height;
639	}
640
641	if (target->rs[Rs_blendtype])
642	{
643	layers[1].merge_scanlines = blend_scanlines_name2func (target->rs[Rs_blendtype]);
644	if (layers[1].merge_scanlines == NULL)
645	layers[1].merge_scanlines = alphablend_scanlines;
646	}
647
648	ASImage *tmp = merge_layers (target->asv, layers, 2, target_width, target_height,
649	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
650
651	if (tmp)
652	{
653	if (result != original_asim)
654	destroy_asimage (&result);
655
656	result = tmp;
657	}
658
659	free (layers);
660	}
661	}
662	TIMING_TEST_PRINT_RESULT (asim);
663
664	bool ret = false;
665
666	if (result)
667	{
668	XGCValues gcv;
669	GC gc;
670
671	if (pixmap)
672	{
673	if (pmap_width != new_pmap_width
674	|| pmap_height != new_pmap_height
675	|| pmap_depth != target->depth)
676	{
677	XFreePixmap (target->dpy, pixmap);
678	pixmap = None;
679	}
680	}
681
682	/* create Pixmap */
683	if (pixmap == None)
684	{
685	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
686	pmap_width = new_pmap_width;
687	pmap_height = new_pmap_height;
688	pmap_depth = target->depth;
689	}
690	/* fill with background color (if result's not completely overlapping it) */
691	gcv.foreground = target->pix_colors[Color_bg];
692	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
693
694	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
695	int dst_width = result->width, dst_height = result->height;
696	if (background == NULL)
697	{
698	if (!(h_scale == 0 || v_scale == 0))
699	{
700	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
701	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
702	}
703
704	if (dst_x > 0 || dst_y > 0
705	|| dst_x + dst_width < new_pmap_width
706	|| dst_y + dst_height < new_pmap_height)
707	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
708	}
709
710	/* put result on pixmap */
711	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
712	asimage2drawable (target->asv, pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
713
714	if (result != background && result != original_asim)
715	destroy_asimage (&result);
716
717	XFreeGC (target->dpy, gc);
718	TIMING_TEST_PRINT_RESULT (asim);
719
720	ret = true;
721	}
722
723	if (background)
724	destroy_asimage (&background);
725
726	return ret;	329	return true;
727	}	330	}
728	# endif /* HAVE_AFTERIMAGE */
729		331
730	# ifdef HAVE_PIXBUF	332	rxvt_image::rxvt_image ()
731	bool
732	bgPixmap_t::render_image (unsigned long background_flags)
733	{	333	{
734	if (target == NULL)	334	alpha = 0xffff;
		335	flags = 0;
		336	h_scale =
		337	v_scale = defaultScale;
		338	h_align =
		339	v_align = defaultAlign;
		340
		341	img = 0;
		342	}
		343
		344	void
		345	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
		346	{
		347	if (!file || !*file)
735	return false;	348	return;
736		349
737	if (!pixbuf)
738	return false;
739
740	#if !XFT
741	if (background_flags)
742	return false;
743	#endif
744
745	GdkPixbuf *result;
746
747	int image_width = gdk_pixbuf_get_width (pixbuf);
748	int image_height = gdk_pixbuf_get_height (pixbuf);
749
750	int target_width = target->szHint.width;
751	int target_height = target->szHint.height;
752	int new_pmap_width = target_width;
753	int new_pmap_height = target_height;
754
755	int x = 0;
756	int y = 0;
757	int w = 0;
758	int h = 0;
759
760	get_image_geometry (image_width, image_height, w, h, x, y);
761
762	if (!(flags & rootAlign)
763	&& (x >= target_width
764	|| y >= target_height
765	|| (x + w <= 0)
766	|| (y + h <= 0)))
767	return false;
768
769	result = pixbuf;
770
771	if ((w != image_width)
772	|| (h != image_height))
773	{
774	result = gdk_pixbuf_scale_simple (pixbuf,
775	w, h,
776	GDK_INTERP_BILINEAR);
777	}
778
779	bool ret = false;
780
781	if (result)
782	{
783	XGCValues gcv;
784	GC gc;
785	Pixmap root_pmap;
786
787	image_width = gdk_pixbuf_get_width (result);
788	image_height = gdk_pixbuf_get_height (result);
789
790	if (background_flags)
791	{
792	root_pmap = pixmap;
793	pixmap = None;
794	}
795	else
796	{
797	if (h_scale == 0 || v_scale == 0)
798	{
799	new_pmap_width = min (image_width, target_width);
800	new_pmap_height = min (image_height, target_height);
801	}
802	}
803
804	if (pixmap)
805	{
806	if (pmap_width != new_pmap_width
807	|| pmap_height != new_pmap_height
808	|| pmap_depth != target->depth)
809	{
810	XFreePixmap (target->dpy, pixmap);
811	pixmap = None;
812	}
813	}
814
815	if (pixmap == None)
816	{
817	pixmap = XCreatePixmap (target->dpy, target->vt, new_pmap_width, new_pmap_height, target->depth);
818	pmap_width = new_pmap_width;
819	pmap_height = new_pmap_height;
820	pmap_depth = target->depth;
821	}
822
823	gcv.foreground = target->pix_colors[Color_bg];
824	gc = XCreateGC (target->dpy, target->vt, GCForeground, &gcv);
825
826	if (h_scale == 0 || v_scale == 0)
827	{
828	Pixmap tile = XCreatePixmap (target->dpy, target->vt, image_width, image_height, target->depth);
829	gdk_pixbuf_xlib_render_to_drawable (result, tile, gc,
830	0, 0,
831	0, 0,
832	image_width, image_height,
833	XLIB_RGB_DITHER_NONE,
834	0, 0);
835
836	gcv.tile = tile;
837	gcv.fill_style = FillTiled;
838	gcv.ts_x_origin = x;
839	gcv.ts_y_origin = y;
840	XChangeGC (target->dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
841
842	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
843	XFreePixmap (target->dpy, tile);
844	}
845	else
846	{
847	int src_x, src_y, dst_x, dst_y;
848	int dst_width, dst_height;
849
850	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
851	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
852
853	if (dst_x > 0 || dst_y > 0
854	|| dst_x + dst_width < new_pmap_width
855	|| dst_y + dst_height < new_pmap_height)
856	XFillRectangle (target->dpy, pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
857
858	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
859	gdk_pixbuf_xlib_render_to_drawable (result, pixmap, gc,
860	src_x, src_y,
861	dst_x, dst_y,
862	dst_width, dst_height,
863	XLIB_RGB_DITHER_NONE,
864	0, 0);
865	}
866
867	#if XFT
868	if (background_flags)
869	{
870	Display *dpy = target->dpy;
871	XRenderPictureAttributes pa;
872
873	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, target->display->screen));
874	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
875
876	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);
877	Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);
878
879	pa.repeat = True;
880	Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);
881	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
882	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
883	XFreePixmap (dpy, mask_pmap);
884
885	if (src && dst && mask)
886	{
887	XRenderColor mask_c;
888
889	mask_c.alpha = 0x8000;
890	mask_c.red = 0;
891	mask_c.green = 0;
892	mask_c.blue = 0;
893	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
894	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
895	}
896
897	XRenderFreePicture (dpy, src);
898	XRenderFreePicture (dpy, dst);
899	XRenderFreePicture (dpy, mask);
900
901	XFreePixmap (dpy, root_pmap);
902	}
903	#endif
904
905	if (result != pixbuf)
906	g_object_unref (result);
907
908	XFreeGC (target->dpy, gc);
909
910	ret = true;
911	}
912
913	return ret;
914	}
915	# endif /* HAVE_PIXBUF */
916
917	bool
918	bgPixmap_t::set_file (const char *file)
919	{
920	assert (file);
921
922	if (*file)
923	{
924	if (const char *p = strchr (file, ';'))	350	const char *p = strchr (file, ';');
925	{	351
		352	if (p)
		353	{
926	size_t len = p - file;	354	size_t len = p - file;
927	char *f = rxvt_temp_buf<char> (len + 1);	355	char *f = rxvt_temp_buf<char> (len + 1);
928	memcpy (f, file, len);	356	memcpy (f, file, len);
929	f[len] = '\0';	357	f[len] = '\0';
930	file = f;	358	file = f;
931	}
932
933	# ifdef HAVE_AFTERIMAGE
934	if (!target->asimman)
935	target->asimman = create_generic_imageman (target->rs[Rs_path]);
936	ASImage *image = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);
937	if (image)
938	{
939	if (original_asim)
940	safe_asimage_destroy (original_asim);
941	original_asim = image;
942	have_image = true;
943	return true;
944	}
945	# endif
946
947	# ifdef HAVE_PIXBUF
948	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
949	if (image)
950	{
951	if (pixbuf)
952	g_object_unref (pixbuf);
953	pixbuf = image;
954	have_image = true;
955	return true;
956	}
957	# endif
958	}	359	}
959		360
960	return false;	361	set_file (s, file);
		362	alpha = 0x8000;
		363	set_geometry (p ? p + 1 : "");
		364	}
		365
		366	void
		367	rxvt_image::set_file (rxvt_screen *s, const char *file)
		368	{
		369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
		370	delete img;
		371	img = img2;
961	}	372	}
962		373
963	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
964		375
965	# ifdef ENABLE_TRANSPARENCY
966	bool	376	bool
967	bgPixmap_t::set_transparent ()
968	{
969	if (!(flags & isTransparent))
970	{
971	flags |= isTransparent;
972	return true;
973	}
974
975	return false;
976	}
977
978	bool
979	bgPixmap_t::set_blur_radius (const char *geom)	377	image_effects::set_blur (const char *geom)
980	{	378	{
981	int changed = 0;	379	bool changed = false;
982	unsigned int hr, vr;	380	unsigned int hr, vr;
983	int junk;	381	int junk;
984	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
985		383
986	if (!(geom_flags & WidthValue))	384	if (!(geom_flags & WidthValue))
…		…
991	min_it (hr, 128);	389	min_it (hr, 128);
992	min_it (vr, 128);	390	min_it (vr, 128);
993		391
994	if (h_blurRadius != hr)	392	if (h_blurRadius != hr)
995	{	393	{
996	++changed;	394	changed = true;
997	h_blurRadius = hr;	395	h_blurRadius = hr;
998	}	396	}
999		397
1000	if (v_blurRadius != vr)	398	if (v_blurRadius != vr)
1001	{	399	{
1002	++changed;	400	changed = true;
1003	v_blurRadius = vr;	401	v_blurRadius = vr;
1004	}	402	}
1005		403
1006	if (v_blurRadius == 0 && h_blurRadius == 0)
1007	flags &= ~blurNeeded;
1008	else
1009	flags |= blurNeeded;
1010
1011	#if XFT
1012	XFilters *filters = XRenderQueryFilters (target->dpy, target->display->root);
1013	if (filters)
1014	{
1015	for (int i = 0; i < filters->nfilter; i++)
1016	if (!strcmp (filters->filter[i], FilterConvolution))
1017	flags |= bgPixmap_t::blurServerSide;
1018
1019	XFree (filters);
1020	}
1021	#endif
1022
1023	return (changed > 0);	404	return changed;
1024	}	405	}
1025		406
1026	static inline unsigned long
1027	compute_tint_shade_flags (rxvt_color *tint, int shade)
1028	{
1029	unsigned long flags = 0;
1030	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1031	bool has_shade = shade != 100;
1032
1033	if (tint)
1034	{
1035	tint->get (c);
1036	# define IS_COMPONENT_WHOLESOME(cmp) ((cmp) <= 0x000700 || (cmp) >= 0x00f700)
1037	if (!has_shade && IS_COMPONENT_WHOLESOME (c.r)
1038	&& IS_COMPONENT_WHOLESOME (c.g)
1039	&& IS_COMPONENT_WHOLESOME (c.b))
1040	flags |= bgPixmap_t::tintWholesome;
1041	# undef IS_COMPONENT_WHOLESOME
1042	}
1043
1044	if (has_shade)
1045	flags |= bgPixmap_t::tintNeeded;
1046	else if (tint)
1047	{
1048	if ((c.r > 0x000700 || c.g > 0x000700 || c.b > 0x000700)
1049	&& (c.r < 0x00f700 || c.g < 0x00f700 || c.b < 0x00f700))
1050	{
1051	flags |= bgPixmap_t::tintNeeded;
1052	}
1053	}
1054
1055	if (flags & bgPixmap_t::tintNeeded)
1056	{
1057	if (flags & bgPixmap_t::tintWholesome)
1058	flags |= bgPixmap_t::tintServerSide;
1059	else
1060	{
1061	#if XFT
1062	flags |= bgPixmap_t::tintServerSide;
1063	#endif
1064	}
1065	}
1066
1067	return flags;
1068	}
1069
1070	bool	407	bool
1071	bgPixmap_t::set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
1072	{	409	{
1073	if (!(flags & tintSet) || tint != new_tint)	410	if (!tint_set || tint != new_tint)
1074	{	411	{
1075	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
1076	tint = new_tint;	412	tint = new_tint;
1077	flags = (flags & ~tintFlags) | new_flags | tintSet;	413	tint_set = true;
		414
1078	return true;	415	return true;
1079	}	416	}
1080		417
1081	return false;	418	return false;
1082	}	419	}
1083		420
1084	bool	421	bool
1085	bgPixmap_t::unset_tint ()
1086	{
1087	unsigned long new_flags = compute_tint_shade_flags (NULL, shade);
1088
1089	if (new_flags != (flags & tintFlags))
1090	{
1091	flags = (flags & ~tintFlags) | new_flags;
1092	return true;
1093	}
1094
1095	return false;
1096	}
1097
1098	bool
1099	bgPixmap_t::set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
1100	{	423	{
1101	int new_shade = (shade_str) ? atoi (shade_str) : 100;	424	int new_shade = atoi (shade_str);
1102		425
1103	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
1104	if (new_shade < 0)	427	if (new_shade < 0)
1105	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
1106		429
1107	if (new_shade != shade)	430	if (new_shade != shade)
1108	{	431	{
1109	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
1110	shade = new_shade;	432	shade = new_shade;
1111	flags = (flags & (~tintFlags | tintSet)) | new_flags;
1112	return true;	433	return true;
1113	}	434	}
1114		435
1115	return false;	436	return false;
1116	}	437	}
1117		438
1118	static void	439	# if BG_IMAGE_FROM_ROOT
1119	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)	440	/*
1120	{	441	* Builds a pixmap of the same size as the terminal window that contains
1121	double sigma = radius / 2.0;
1122	double scale = sqrt (2.0 * M_PI) * sigma;
1123	double sum = 0.0;
1124
1125	for (int i = 0; i < width; i++)
1126	{
1127	double x = i - width / 2;
1128	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1129	sum += kernel[i];
1130	}
1131
1132	params[0] = XDoubleToFixed (width);
1133	params[1] = XDoubleToFixed (1);
1134
1135	for (int i = 0; i < width; i++)
1136	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1137	}
1138
1139	bool
1140	bgPixmap_t::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1141	{
1142	bool ret = false;
1143	#if XFT
1144	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1145	double *kernel = (double *)malloc (size * sizeof (double));
1146	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1147
1148	Display *dpy = target->dpy;
1149	XRenderPictureAttributes pa;
1150	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, target->visual);
1151
1152	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1153	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1154
1155	if (kernel && params && src && dst)
1156	{
1157	if (h_blurRadius)
1158	{
1159	size = h_blurRadius * 2 + 1;
1160	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1161
1162	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1163	XRenderComposite (dpy,
1164	PictOpSrc,
1165	src,
1166	None,
1167	dst,
1168	0, 0,
1169	0, 0,
1170	0, 0,
1171	width, height);
1172	}
1173
1174	if (v_blurRadius)
1175	{
1176	size = v_blurRadius * 2 + 1;
1177	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1178	swap (params[0], params[1]);
1179
1180	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1181	XRenderComposite (dpy,
1182	PictOpSrc,
1183	src,
1184	None,
1185	dst,
1186	0, 0,
1187	0, 0,
1188	0, 0,
1189	width, height);
1190	}
1191
1192	ret = true;
1193	}
1194
1195	free (kernel);
1196	free (params);
1197	XRenderFreePicture (dpy, src);
1198	XRenderFreePicture (dpy, dst);
1199	#endif
1200	return ret;
1201	}
1202
1203	bool
1204	bgPixmap_t::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1205	{
1206	Display *dpy = target->dpy;
1207	bool ret = false;
1208
1209	if (flags & tintWholesome)
1210	{
1211	XGCValues gcv;
1212	GC gc;
1213
1214	/* In this case we can tint image server-side getting significant
1215	* performance improvements, as we eliminate XImage transfer
1216	*/
1217	gcv.foreground = Pixel (tint);
1218	gcv.function = GXand;
1219	gcv.fill_style = FillSolid;
1220	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1221	if (gc)
1222	{
1223	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1224	ret = true;
1225	XFreeGC (dpy, gc);
1226	}
1227	}
1228	else
1229	{
1230	# if XFT
1231	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1232
1233	if (flags & tintSet)
1234	tint.get (c);
1235
1236	if (shade <= 100)
1237	{
1238	c.r = (c.r * shade) / 100;
1239	c.g = (c.g * shade) / 100;
1240	c.b = (c.b * shade) / 100;
1241	}
1242	else
1243	{
1244	c.r = ((0xffff - c.r) * (200 - shade)) / 100;
1245	c.g = ((0xffff - c.g) * (200 - shade)) / 100;
1246	c.b = ((0xffff - c.b) * (200 - shade)) / 100;
1247	}
1248
1249	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1250	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1251	XRenderPictureAttributes pa;
1252
1253	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1254
1255	pa.repeat = True;
1256
1257	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1258	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1259	XFreePixmap (dpy, overlay_pmap);
1260
1261	pa.component_alpha = True;
1262	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1263	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1264	XFreePixmap (dpy, mask_pmap);
1265
1266	if (mask_pic && overlay_pic && back_pic)
1267	{
1268	XRenderColor mask_c;
1269
1270	memset (&mask_c, (shade > 100) ? 0xFF : 0x0, sizeof (mask_c));
1271	mask_c.alpha = 0xffff;
1272	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1273
1274	mask_c.alpha = 0;
1275	mask_c.red = 0xffff - c.r;
1276	mask_c.green = 0xffff - c.g;
1277	mask_c.blue = 0xffff - c.b;
1278	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1279	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1280	ret = true;
1281	}
1282
1283	XRenderFreePicture (dpy, mask_pic);
1284	XRenderFreePicture (dpy, overlay_pic);
1285	XRenderFreePicture (dpy, back_pic);
1286	# if DO_TIMING_TEST
1287	XSync (dpy, False);
1288	# endif
1289	# endif
1290	}
1291
1292	return ret;
1293	}
1294
1295	/* make_transparency_pixmap()
1296	* Builds a pixmap sized the same as terminal window, with depth same as the root window
1297	* that pixmap contains tiled portion of the root pixmap that is supposed to be covered by	442	* the tiled portion of the root pixmap that is supposed to be covered by
1298	* our window.	443	* our window.
1299	*/	444	*/
1300	unsigned long	445	bool
1301	bgPixmap_t::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
1302	{	447	{
1303	unsigned long result = 0;
1304
1305	if (target == NULL)
1306	return 0;
1307
1308	/* root dimensions may change from call to call - but Display structure should	448	/* root dimensions may change from call to call - but Display structure should
1309	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
1310	*/	450	*/
1311	Window root = target->display->root;
1312	int screen = target->display->screen;	451	int screen = display->screen;
1313	Display *dpy = target->dpy;
1314	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
1315	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
1316	unsigned int root_pmap_width, root_pmap_height;
1317	int window_width = target->szHint.width;	454	int parent_width = szHint.width;
1318	int window_height = target->szHint.height;	455	int parent_height = szHint.height;
1319	int sx, sy;	456	int sx, sy;
1320	XGCValues gcv;
1321	GC gc;
1322		457
1323	TIMING_TEST_START (tp);	458	sx = parent_x;
1324	target->get_window_origin (sx, sy);	459	sy = parent_y;
1325		460
1326	/* check if we are outside of the visible part of the virtual screen : */	461	/* check if we are outside of the visible part of the virtual screen : */
1327	if (sx + window_width <= 0 || sy + window_height <= 0	462	if (sx + parent_width <= 0 || sy + parent_height <= 0
1328	|| sx >= root_width || sy >= root_height)	463	|| sx >= root_width || sy >= root_height)
1329	return 0;	464	return 0;
1330		465
1331	if (root_pixmap != None)
1332	{
1333	/* we want to validate the pixmap and get its size at the same time : */
1334	int junk;
1335	unsigned int ujunk;
1336	/* root pixmap may be bad - allow a error */
1337	target->allowedxerror = -1;
1338
1339	if (!XGetGeometry (dpy, root_pixmap, &root, &junk, &junk, &root_pmap_width, &root_pmap_height, &ujunk, &ujunk))
1340	root_pixmap = None;
1341
1342	target->allowedxerror = 0;
1343	}
1344
1345	if (root_pixmap == None)
1346	return 0;
1347
1348	Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth);
1349
1350	if (tiled_root_pmap == None) /* something really bad happened - abort */
1351	return 0;
1352
1353	/* straightforward pixmap copy */
1354	gcv.tile = root_pixmap;
1355	gcv.fill_style = FillTiled;
1356
1357	while (sx < 0) sx += (int)root_width;	466	while (sx < 0) sx += root_img->w;
1358	while (sy < 0) sy += (int)root_height;	467	while (sy < 0) sy += root_img->h;
1359		468
1360	gcv.ts_x_origin = -sx;	469	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1361	gcv.ts_y_origin = -sy;
1362	gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1363		470
1364	if (gc)	471	if (root_effects.need_blur ())
1365	{	472	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1366	XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1367	result |= transpPmapTiled;
1368	XFreeGC (dpy, gc);
1369	}
1370	TIMING_TEST_PRINT_RESULT (tp);
1371		473
1372	if (tiled_root_pmap != None)	474	if (root_effects.need_tint ())
1373	{	475	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1374	if (!need_client_side_rendering ())
1375	{
1376	if (flags & (blurNeeded | blurServerSide))
1377	{
1378	if (blur_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height))
1379	result |= transpPmapBlurred;
1380	}
1381	if (flags & (tintNeeded | tintServerSide))
1382	{
1383	if (tint_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height))
1384	result |= transpPmapTinted;
1385	}
1386	} /* server side rendering completed */
1387		476
1388	if (pixmap)	477	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1389	XFreePixmap (dpy, pixmap);	478	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1390		479
1391	pixmap = tiled_root_pmap;	480	delete bg_img;
1392	pmap_width = window_width;	481	bg_img = img;
1393	pmap_height = window_height;
1394	pmap_depth = root_depth;
1395	}
1396
1397	TIMING_TEST_PRINT_RESULT (tp);
1398
1399	return result;
1400	}
1401
1402	bool
1403	bgPixmap_t::set_root_pixmap ()
1404	{
1405	Pixmap new_root_pixmap = target->get_pixmap_property (XA_XROOTPMAP_ID);
1406	if (new_root_pixmap == None)
1407	new_root_pixmap = target->get_pixmap_property (XA_ESETROOT_PMAP_ID);
1408
1409	if (new_root_pixmap != root_pixmap)
1410	{
1411	root_pixmap = new_root_pixmap;
1412	return true;
1413	}
1414
1415	return false;
1416	}
1417	# endif /* ENABLE_TRANSPARENCY */
1418
1419	# ifndef HAVE_AFTERIMAGE
1420	static void ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm);
1421	# endif
1422
1423	bool
1424	bgPixmap_t::render ()
1425	{
1426	unsigned long background_flags = 0;
1427
1428	if (target == NULL)
1429	return false;
1430
1431	TIMING_TEST_START (tp);
1432
1433	invalidate ();
1434	# ifdef ENABLE_TRANSPARENCY
1435	if (flags & isTransparent)
1436	{
1437	/* we need to re-generate transparency pixmap in that case ! */
1438	background_flags = make_transparency_pixmap ();
1439	if (background_flags == 0)
1440	return false;
1441	else if ((background_flags & transpTransformations) == (flags & transpTransformations)
1442	&& pmap_depth == target->depth)
1443	flags = flags & ~isInvalid;
1444	}
1445	# endif
1446
1447	# ifdef BG_IMAGE_FROM_FILE
1448	if (have_image
1449	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1450	{
1451	if (render_image (background_flags))
1452	flags = flags & ~isInvalid;
1453	}
1454	# endif
1455
1456	XImage *result = NULL;
1457
1458	if (background_flags && (flags & isInvalid))
1459	{
1460	result = XGetImage (target->dpy, pixmap, 0, 0, pmap_width, pmap_height, AllPlanes, ZPixmap);
1461	}
1462
1463	if (result)
1464	{
1465	# if !defined(HAVE_AFTERIMAGE) && !XFT
1466	/* our own client-side tinting */
1467	/* ATTENTION: We ASSUME that XFT will let us do all the tinting necessary server-side.
1468	This may need to be changed in need_client_side_rendering() logic is altered !!! */
1469	if (!(background_flags & transpPmapTinted) && (flags & tintNeeded))
1470	{
1471	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1472	if (flags & tintSet)
1473	tint.get (c);
1474	ShadeXImage (target, result, shade, c.r, c.g, c.b);
1475	}
1476	# endif
1477
1478	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);
1479
1480	if (gc)
1481	{
1482	if (/*pmap_depth != target->depth &&*/ pixmap != None)
1483	{
1484	XFreePixmap (target->dpy, pixmap);
1485	pixmap = None;
1486	}
1487
1488	if (pixmap == None)
1489	{
1490	pixmap = XCreatePixmap (target->dpy, target->vt, result->width, result->height, target->depth);
1491	pmap_width = result->width;
1492	pmap_height = result->height;
1493	pmap_depth = target->depth;
1494	}
1495
1496	if (pmap_depth != result->depth)
1497	{
1498	/* Bad Match error will ensue ! stupid X !!!! */
1499	if (result->depth == 24 && pmap_depth == 32)
1500	result->depth = 32;
1501	else if (result->depth == 32 && pmap_depth == 24)
1502	result->depth = 24;
1503	else
1504	{
1505	/* TODO: implement image recoding */
1506	}
1507	}
1508
1509	if (pmap_depth == result->depth)
1510	XPutImage (target->dpy, pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1511
1512	XFreeGC (target->dpy, gc);
1513	flags = flags & ~isInvalid;
1514	}
1515
1516	XDestroyImage (result);
1517	}
1518
1519	if (flags & isInvalid)
1520	{
1521	if (pixmap != None)
1522	{
1523	XFreePixmap (target->dpy, pixmap);
1524	pixmap = None;
1525	}
1526	}
1527
1528	apply ();
1529
1530	XSync (target->dpy, False);
1531	valid_since = ev::now ();
1532
1533	TIMING_TEST_PRINT_RESULT (tp);
1534		482
1535	return true;	483	return true;
1536	}	484	}
1537		485
1538	bool	486	void
1539	bgPixmap_t::set_target (rxvt_term *new_target)	487	rxvt_term::bg_set_root_pixmap ()
1540	{	488	{
1541	if (new_target)	489	delete root_img;
1542	if (target != new_target)	490	root_img = rxvt_img::new_from_root (this);
		491	}
		492	# endif /* BG_IMAGE_FROM_ROOT */
		493
		494	void
		495	rxvt_term::bg_render ()
		496	{
		497	if (bg_flags & BG_INHIBIT_RENDER)
		498	return;
		499
		500	delete bg_img;
		501	bg_img = 0;
		502	bg_flags = 0;
		503
		504	if (!mapped)
		505	return;
		506
		507	# if BG_IMAGE_FROM_ROOT
		508	if (root_img)
		509	if (render_root_image ())
		510	bg_flags |= BG_IS_TRANSPARENT;
		511	# endif
		512
		513	# if BG_IMAGE_FROM_FILE
		514	if (fimage.img)
		515	render_image (fimage);
		516	# endif
		517
		518	scr_recolour (false);
		519	bg_flags |= BG_NEEDS_REFRESH;
		520
		521	bg_valid_since = ev::now ();
		522	}
		523
		524	void
		525	rxvt_term::bg_init ()
		526	{
		527	#if BG_IMAGE_FROM_ROOT
		528	if (option (Opt_transparent))
1543	{	529	{
1544	target = new_target;	530	if (rs [Rs_blurradius])
1545	# ifdef ENABLE_TRANSPARENCY	531	root_effects.set_blur (rs [Rs_blurradius]);
1546	root_depth = DefaultDepthOfScreen (ScreenOfDisplay (target->dpy, target->display->screen));	532
		533	if (ISSET_PIXCOLOR (Color_tint))
		534	root_effects.set_tint (pix_colors_focused [Color_tint]);
		535
		536	if (rs [Rs_shade])
		537	root_effects.set_shade (rs [Rs_shade]);
		538
		539	bg_set_root_pixmap ();
		540	XSelectInput (dpy, display->root, PropertyChangeMask);
		541	rootwin_ev.start (display, display->root);
		542	}
1547	# endif	543	#endif
1548	return true;	544
		545	#if BG_IMAGE_FROM_FILE
		546	if (rs[Rs_backgroundPixmap])
		547	{
		548	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
		549	if (!bg_window_position_sensitive ())
		550	update_background ();
1549	}	551	}
1550
1551	return false;
1552	}
1553
1554	void
1555	bgPixmap_t::apply ()
1556	{
1557	if (target)
1558	{
1559	flags &= ~isVtOrigin;
1560
1561	if (pixmap != None)
1562	{
1563	/* set target's background to pixmap */
1564	# ifdef ENABLE_TRANSPARENCY
1565	if (flags & isTransparent)
1566	{
1567	XSetWindowBackgroundPixmap (target->dpy, target->parent[0], pixmap);
1568	XSetWindowBackgroundPixmap (target->dpy, target->vt, ParentRelative);
1569
1570	if (target->scrollBar.win)
1571	XSetWindowBackgroundPixmap (target->dpy, target->scrollBar.win, ParentRelative);
1572	}
1573	else
1574	# endif	552	#endif
1575	{	553	}
1576	flags |= isVtOrigin;
1577	/* force old pixmap dereference in case it was transparent before :*/
1578	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);
1579	XSetWindowBackgroundPixmap (target->dpy, target->vt, pixmap);
1580	/* do we also need to set scrollbar's background here ? */
1581		554
1582	if (target->scrollBar.win)	555	void
1583	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);	556	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1584	}	557	{
1585	}	558	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		559
		560	if (tint_set)
		561	tint.get (c);
		562
		563	if (shade > 100)
		564	{
		565	c.r = c.r * (200 - shade) / 100;
		566	c.g = c.g * (200 - shade) / 100;
		567	c.b = c.b * (200 - shade) / 100;
		568	}
1586	else	569	else
1587	{	570	{
1588	/* set target background to a pixel */	571	c.r = c.r * shade / 100;
1589	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);	572	c.g = c.g * shade / 100;
1590	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);	573	c.b = c.b * shade / 100;
1591	/* do we also need to set scrollbar's background here ? */	574	}
1592	if (target->scrollBar.win)
1593	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1594	}
1595		575
1596	/* don't want Expose on the parent or vt. It is better to use	576	img->contrast (c.r, c.g, c.b, c.a);
1597	scr_touch or we get a great deal of flicker otherwise: */
1598	XClearWindow (target->dpy, target->parent[0]);
1599		577
1600	if (target->scrollBar.state && target->scrollBar.win)	578	if (shade > 100)
1601	{	579	{
1602	target->scrollBar.state = STATE_IDLE;	580	c.a = 0xffff;
1603	target->scrollBar.show (0);	581	c.r =
1604	}	582	c.g =
1605		583	c.b = 0xffff * (shade - 100) / 100;
1606	target->want_refresh = 1;	584	img->brightness (c.r, c.g, c.b, c.a);
1607	flags |= hasChanged;
1608	}	585	}
1609	}	586	}
1610		587
1611	#endif /* HAVE_BG_PIXMAP */	588	#endif /* HAVE_BG_PIXMAP */
1612
1613	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) && !XFT
1614	/* taken from aterm-0.4.2 */
1615
1616	typedef uint32_t RUINT32T;
1617
1618	static void
1619	ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm)
1620	{
1621	int sh_r, sh_g, sh_b;
1622	RUINT32T mask_r, mask_g, mask_b;
1623	RUINT32T *lookup, *lookup_r, *lookup_g, *lookup_b;
1624	unsigned int lower_lim_r, lower_lim_g, lower_lim_b;
1625	unsigned int upper_lim_r, upper_lim_g, upper_lim_b;
1626	int i;
1627
1628	Visual *visual = term->visual;
1629
1630	if (visual->c_class != TrueColor || srcImage->format != ZPixmap) return ;
1631
1632	/* for convenience */
1633	mask_r = visual->red_mask;
1634	mask_g = visual->green_mask;
1635	mask_b = visual->blue_mask;
1636
1637	/* boring lookup table pre-initialization */
1638	switch (srcImage->bits_per_pixel) {
1639	case 15:
1640	if ((mask_r != 0x7c00) ||
1641	(mask_g != 0x03e0) ||
1642	(mask_b != 0x001f))
1643	return;
1644	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+32+32));
1645	lookup_r = lookup;
1646	lookup_g = lookup+32;
1647	lookup_b = lookup+32+32;
1648	sh_r = 10;
1649	sh_g = 5;
1650	sh_b = 0;
1651	break;
1652	case 16:
1653	if ((mask_r != 0xf800) ||
1654	(mask_g != 0x07e0) ||
1655	(mask_b != 0x001f))
1656	return;
1657	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(32+64+32));
1658	lookup_r = lookup;
1659	lookup_g = lookup+32;
1660	lookup_b = lookup+32+64;
1661	sh_r = 11;
1662	sh_g = 5;
1663	sh_b = 0;
1664	break;
1665	case 24:
1666	if ((mask_r != 0xff0000) ||
1667	(mask_g != 0x00ff00) ||
1668	(mask_b != 0x0000ff))
1669	return;
1670	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1671	lookup_r = lookup;
1672	lookup_g = lookup+256;
1673	lookup_b = lookup+256+256;
1674	sh_r = 16;
1675	sh_g = 8;
1676	sh_b = 0;
1677	break;
1678	case 32:
1679	if ((mask_r != 0xff0000) ||
1680	(mask_g != 0x00ff00) ||
1681	(mask_b != 0x0000ff))
1682	return;
1683	lookup = (RUINT32T *) malloc (sizeof (RUINT32T)*(256+256+256));
1684	lookup_r = lookup;
1685	lookup_g = lookup+256;
1686	lookup_b = lookup+256+256;
1687	sh_r = 16;
1688	sh_g = 8;
1689	sh_b = 0;
1690	break;
1691	default:
1692	return; /* we do not support this color depth */
1693	}
1694
1695	/* prepare limits for color transformation (each channel is handled separately) */
1696	if (shade > 100) {
1697	shade = 200 - shade;
1698
1699	lower_lim_r = 65535-rm;
1700	lower_lim_g = 65535-gm;
1701	lower_lim_b = 65535-bm;
1702
1703	lower_lim_r = 65535-(unsigned int)(((RUINT32T)lower_lim_r)*((RUINT32T)shade)/100);
1704	lower_lim_g = 65535-(unsigned int)(((RUINT32T)lower_lim_g)*((RUINT32T)shade)/100);
1705	lower_lim_b = 65535-(unsigned int)(((RUINT32T)lower_lim_b)*((RUINT32T)shade)/100);
1706
1707	upper_lim_r = upper_lim_g = upper_lim_b = 65535;
1708	} else {
1709
1710	lower_lim_r = lower_lim_g = lower_lim_b = 0;
1711
1712	upper_lim_r = (unsigned int)((((RUINT32T)rm)*((RUINT32T)shade))/100);
1713	upper_lim_g = (unsigned int)((((RUINT32T)gm)*((RUINT32T)shade))/100);
1714	upper_lim_b = (unsigned int)((((RUINT32T)bm)*((RUINT32T)shade))/100);
1715	}
1716
1717	/* switch red and blue bytes if necessary, we need it for some weird XServers like XFree86 3.3.3.1 */
1718	if ((srcImage->bits_per_pixel == 24) && (mask_r >= 0xFF0000 ))
1719	{
1720	unsigned int tmp;
1721
1722	tmp = lower_lim_r;
1723	lower_lim_r = lower_lim_b;
1724	lower_lim_b = tmp;
1725
1726	tmp = upper_lim_r;
1727	upper_lim_r = upper_lim_b;
1728	upper_lim_b = tmp;
1729	}
1730
1731	/* fill our lookup tables */
1732	for (i = 0; i <= mask_r>>sh_r; i++)
1733	{
1734	RUINT32T tmp;
1735	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_r-lower_lim_r));
1736	tmp += ((RUINT32T)(mask_r>>sh_r))*((RUINT32T)lower_lim_r);
1737	lookup_r[i] = (tmp/65535)<<sh_r;
1738	}
1739	for (i = 0; i <= mask_g>>sh_g; i++)
1740	{
1741	RUINT32T tmp;
1742	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_g-lower_lim_g));
1743	tmp += ((RUINT32T)(mask_g>>sh_g))*((RUINT32T)lower_lim_g);
1744	lookup_g[i] = (tmp/65535)<<sh_g;
1745	}
1746	for (i = 0; i <= mask_b>>sh_b; i++)
1747	{
1748	RUINT32T tmp;
1749	tmp = ((RUINT32T)i)*((RUINT32T)(upper_lim_b-lower_lim_b));
1750	tmp += ((RUINT32T)(mask_b>>sh_b))*((RUINT32T)lower_lim_b);
1751	lookup_b[i] = (tmp/65535)<<sh_b;
1752	}
1753
1754	/* apply table to input image (replacing colors by newly calculated ones) */
1755	switch (srcImage->bits_per_pixel)
1756	{
1757	case 15:
1758	{
1759	unsigned short *p1, *pf, *p, *pl;
1760	p1 = (unsigned short *) srcImage->data;
1761	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1762	while (p1 < pf)
1763	{
1764	p = p1;
1765	pl = p1 + srcImage->width;
1766	for (; p < pl; p++)
1767	{
1768	*p = lookup_r[(*p & 0x7c00)>>10] |
1769	lookup_g[(*p & 0x03e0)>> 5] |
1770	lookup_b[(*p & 0x001f)];
1771	}
1772	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1773	}
1774	break;
1775	}
1776	case 16:
1777	{
1778	unsigned short *p1, *pf, *p, *pl;
1779	p1 = (unsigned short *) srcImage->data;
1780	pf = (unsigned short *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1781	while (p1 < pf)
1782	{
1783	p = p1;
1784	pl = p1 + srcImage->width;
1785	for (; p < pl; p++)
1786	{
1787	*p = lookup_r[(*p & 0xf800)>>11] |
1788	lookup_g[(*p & 0x07e0)>> 5] |
1789	lookup_b[(*p & 0x001f)];
1790	}
1791	p1 = (unsigned short *) ((char *) p1 + srcImage->bytes_per_line);
1792	}
1793	break;
1794	}
1795	case 24:
1796	{
1797	unsigned char *p1, *pf, *p, *pl;
1798	p1 = (unsigned char *) srcImage->data;
1799	pf = (unsigned char *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1800	while (p1 < pf)
1801	{
1802	p = p1;
1803	pl = p1 + srcImage->width * 3;
1804	for (; p < pl; p += 3)
1805	{
1806	p[0] = lookup_r[(p[0] & 0xff0000)>>16];
1807	p[1] = lookup_r[(p[1] & 0x00ff00)>> 8];
1808	p[2] = lookup_r[(p[2] & 0x0000ff)];
1809	}
1810	p1 = (unsigned char *) ((char *) p1 + srcImage->bytes_per_line);
1811	}
1812	break;
1813	}
1814	case 32:
1815	{
1816	RUINT32T *p1, *pf, *p, *pl;
1817	p1 = (RUINT32T *) srcImage->data;
1818	pf = (RUINT32T *) (srcImage->data + srcImage->height * srcImage->bytes_per_line);
1819
1820	while (p1 < pf)
1821	{
1822	p = p1;
1823	pl = p1 + srcImage->width;
1824	for (; p < pl; p++)
1825	{
1826	*p = lookup_r[(*p & 0xff0000)>>16] |
1827	lookup_g[(*p & 0x00ff00)>> 8] |
1828	lookup_b[(*p & 0x0000ff)] |
1829	(*p & ~0xffffff);
1830	}
1831	p1 = (RUINT32T *) ((char *) p1 + srcImage->bytes_per_line);
1832	}
1833	break;
1834	}
1835	}
1836
1837	free (lookup);
1838	}
1839	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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