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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 1.238 by sf-exg, Sun Jun 10 15:48:08 2012 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C - former xpm.C
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <pcg@goof.com>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* 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 ()
97	{
98	// this is basically redundant as bgPixmap_t is only used in
99	// zero_initialised-derived structs
100	#ifdef HAVE_AFTERIMAGE
101	original_asim = NULL;
102	#endif
103	#ifdef HAVE_PIXBUF
104	pixbuf = NULL;
105	#endif
106	#ifdef BG_IMAGE_FROM_FILE
107	have_image = false;
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		29
120	void	30	void
121	bgPixmap_t::destroy ()	31	rxvt_term::bg_destroy ()
122	{	32	{
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	33	# if ENABLE_TRANSPARENCY
141	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_set_position (int x, int y)
		48	{
		49
		50	if (target_x != x
		51	|| target_y != y)
		52	{
		53	target_x = x;
		54	target_y = y;
		55	return true;
		56	}
		57	return false;
		58	}
		59
		60	bool
		61	rxvt_term::bg_window_size_sensitive ()
		62	{
		63	# if ENABLE_TRANSPARENCY
		64	if (bg_flags & BG_IS_TRANSPARENT)
142	return true;	65	return true;
143	# endif	66	# endif
144		67
145	# ifdef BG_IMAGE_FROM_FILE	68	# if BG_IMAGE_FROM_FILE
146	if (have_image)	69	if (fimage.img)
147	{	70	{
148	if (flags & sizeSensitive)	71	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		72	|| fimage.img->w > szHint.width
		73	|| fimage.img->h > szHint.height)
149	return true;	74	return true;
150	}	75	}
151	# endif	76	# endif
152		77
153	return false;	78	return false;
154	}	79	}
155		80
156	bool	81	bool
157	bgPixmap_t::window_position_sensitive ()	82	rxvt_term::bg_window_position_sensitive ()
158	{	83	{
159	# ifdef ENABLE_TRANSPARENCY	84	# if ENABLE_TRANSPARENCY
160	if (flags & isTransparent)	85	if (bg_flags & BG_IS_TRANSPARENT)
161	return true;	86	return true;
162	# endif	87	# endif
163		88
164	# ifdef BG_IMAGE_FROM_FILE	89	# if BG_IMAGE_FROM_FILE
165	if (have_image)	90	if (fimage.img)
166	{	91	{
167	if (flags & rootAlign)	92	if (fimage.flags & IM_ROOT_ALIGN)
168	return true;	93	return true;
169	}	94	}
170	# endif	95	# endif
171		96
172	return false;	97	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	}	98	}
183		99
184	# ifdef BG_IMAGE_FROM_FILE	100	# 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	101	static inline int
220	make_align_position (int align, int window_size, int image_size)	102	make_align_position (int align, int window_size, int image_size)
221	{	103	{
222	int diff = window_size - image_size;
223	int smaller = min (image_size, window_size);
224
225	if (align >= 0 && align <= 100)	104	if (align >= 0 && align <= 100)
226	return diff * align / 100;	105	return lerp (0, window_size - image_size, align);
227	else if (align > 100 && align <= 200 )	106	else if (align > 100)
228	return ((align - 100) * smaller / 100) + window_size - smaller;	107	return lerp (window_size - image_size, window_size, align - 100);
229	else if (align >= -100 && align < 0)	108	else
230	return ((align + 100) * smaller / 100) - image_size;	109	return lerp (-image_size, 0, align + 100);
231	return 0;
232	}	110	}
233		111
234	static inline int	112	static void
235	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	113	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
236	{	114	{
237	int src_pos = 0;	115	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	}	116	{
246		117	flags = IM_TILE;
247	if (dst_pos + dst_size > target_size)	118	w = h = noScale;
248	dst_size = target_size - dst_pos;	119	x = y = 0;
249	return src_pos;	120	}
		121	else if (!strcasecmp (style, "aspect-stretched"))
		122	{
		123	flags = IM_KEEP_ASPECT;
		124	w = h = windowScale;
		125	x = y = centerAlign;
		126	}
		127	else if (!strcasecmp (style, "stretched"))
		128	{
		129	flags = 0;
		130	w = h = windowScale;
		131	x = y = centerAlign;
		132	}
		133	else if (!strcasecmp (style, "centered"))
		134	{
		135	flags = 0;
		136	w = h = noScale;
		137	x = y = centerAlign;
		138	}
		139	else if (!strcasecmp (style, "root-tiled"))
		140	{
		141	flags = IM_TILE|IM_ROOT_ALIGN;
		142	w = h = noScale;
		143	x = y = 0;
		144	}
250	}	145	}
251		146
252	bool	147	bool
253	bgPixmap_t::set_geometry (const char *geom)	148	rxvt_image::set_geometry (const char *geom, bool update)
254	{	149	{
		150	bool changed = false;
255	int geom_flags = 0, changed = 0;	151	int geom_flags = 0;
256	int x = 0, y = 0;	152	int x = h_align;
		153	int y = v_align;
257	unsigned int w = 0, h = 0;	154	unsigned int w = h_scale;
258	unsigned int n;	155	unsigned int h = v_scale;
259	unsigned long new_flags = (flags & (~geometryFlags));	156	uint8_t new_flags = 0;
260	const char *p;
261	# define MAXLEN_GEOM 256 /* could be longer than regular geometry string */
262		157
263	if (geom == NULL)	158	if (geom == NULL)
264	return false;	159	return false;
265		160
266	char str[MAXLEN_GEOM];	161	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	{	162	{
275	char *ops;	163	char **arr = rxvt_strsplit (':', geom);
276	new_flags |= geometrySet;
277		164
278	memcpy (str, geom, n);	165	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	{	166	{
286	char *tmp;	167	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	}	168	{
294	}	169	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;	170	geom_flags = WidthValue|HeightValue|XValue|YValue;
365
366	if (ops)
367	{
368	while (*ops)
369	{	171	}
370	while (*ops == ':' || isspace(*ops)) ++ops;	172	else if (!strcasecmp (arr[i], "op=tile"))
		173	new_flags |= IM_TILE;
		174	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		175	new_flags |= IM_KEEP_ASPECT;
		176	else if (!strcasecmp (arr[i], "op=root-align"))
		177	new_flags |= IM_ROOT_ALIGN;
371		178
372	# define CHECK_GEOM_OPS(op_str) (strncasecmp (ops, (op_str), sizeof (op_str) - 1) == 0)	179	// deprecated
373	if (CHECK_GEOM_OPS ("tile"))	180	else if (!strcasecmp (arr[i], "tile"))
374	{	181	{
		182	new_flags |= IM_TILE;
375	w = h = noScale;	183	w = h = noScale;
376	geom_flags |= WidthValue|HeightValue;	184	geom_flags |= WidthValue|HeightValue;
377	}	185	}
378	else if (CHECK_GEOM_OPS ("propscale"))	186	else if (!strcasecmp (arr[i], "propscale"))
379	{	187	{
380	new_flags |= propScale;	188	new_flags |= IM_KEEP_ASPECT;
381	}
382	else if (CHECK_GEOM_OPS ("hscale"))
383	{
384	if (w == 0) w = windowScale;
385
386	h = noScale;	189	w = h = windowScale;
387	geom_flags |= WidthValue|HeightValue;	190	geom_flags |= WidthValue|HeightValue;
388	}	191	}
389	else if (CHECK_GEOM_OPS ("vscale"))	192	else if (!strcasecmp (arr[i], "hscale"))
390	{	193	{
		194	new_flags |= IM_TILE;
391	if (h == 0) h = windowScale;	195	w = windowScale;
392
393	w = noScale;	196	h = noScale;
394	geom_flags |= WidthValue|HeightValue;	197	geom_flags |= WidthValue|HeightValue;
395	}	198	}
396	else if (CHECK_GEOM_OPS ("scale"))	199	else if (!strcasecmp (arr[i], "vscale"))
397	{	200	{
		201	new_flags |= IM_TILE;
398	if (h == 0) h = windowScale;	202	h = windowScale;
399	if (w == 0) w = windowScale;	203	w = noScale;
400
401	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
402	}	205	}
403	else if (CHECK_GEOM_OPS ("auto"))	206	else if (!strcasecmp (arr[i], "scale"))
404	{	207	{
405	w = h = windowScale;	208	w = h = windowScale;
		209	geom_flags |= WidthValue|HeightValue;
		210	}
		211	else if (!strcasecmp (arr[i], "auto"))
		212	{
		213	w = h = windowScale;
406	x = y = centerAlign;	214	x = y = centerAlign;
407	geom_flags |= WidthValue|HeightValue|XValue|YValue;	215	geom_flags |= WidthValue|HeightValue|XValue|YValue;
408	}	216	}
409	else if (CHECK_GEOM_OPS ("root"))	217	else if (!strcasecmp (arr[i], "root"))
410	{	218	{
411	new_flags |= rootAlign;	219	new_flags |= IM_TILE|IM_ROOT_ALIGN;
412	w = h = noScale;	220	w = h = noScale;
413	geom_flags |= WidthValue|HeightValue;	221	geom_flags |= WidthValue|HeightValue;
414	}	222	}
415	# undef CHECK_GEOM_OPS
416		223
417	while (*ops != ':' && *ops != '\0') ++ops;	224	else
		225	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
418	} /* done parsing ops */	226	} /* done parsing ops */
419	}
420		227
421	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) ++changed;	228	rxvt_free_strsplit (arr);
422	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) ++changed;	229	}
423	if (check_set_align_value (geom_flags, XValue, h_align, x)) ++changed;	230
424	if (check_set_align_value (geom_flags, YValue, v_align, y)) ++changed;	231	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
		232
		233	if (!update)
425	}	234	{
		235	if (!(geom_flags & XValue))
		236	x = y = defaultAlign;
		237	else if (!(geom_flags & YValue))
		238	y = x;
426		239
427	if (new_flags != flags)	240	if (!(geom_flags & (WidthValue|HeightValue)))
		241	w = h = defaultScale;
		242	else if (!(geom_flags & HeightValue))
		243	h = w;
		244	else if (!(geom_flags & WidthValue))
		245	w = h;
		246	}
		247
		248	clamp_it (x, -100, 200);
		249	clamp_it (y, -100, 200);
		250
		251	if (flags != new_flags
		252	|| h_scale != w
		253	|| v_scale != h
		254	|| h_align != x
		255	|| v_align != y)
428	{	256	{
429	flags = new_flags;	257	flags = new_flags;
		258	h_scale = w;
		259	v_scale = h;
		260	h_align = x;
		261	v_align = y;
430	changed++;	262	changed = true;
431	}	263	}
432		264
433	//fprintf (stderr, "flags = %lX, scale = %ux%u, align=%+d%+d\n",	265	if (is_size_sensitive ())
434	// flags, h_scale, v_scale, h_align, v_align);	266	flags |= IM_IS_SIZE_SENSITIVE;
		267	else
		268	flags &= ~IM_IS_SIZE_SENSITIVE;
		269
435	return (changed > 0);	270	return changed;
436	}	271	}
437		272
438	void	273	void
439	bgPixmap_t::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	274	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
440	{	275	{
		276	int image_width = image.img->w;
		277	int image_height = image.img->h;
441	int target_width = target->szHint.width;	278	int target_width = szHint.width;
442	int target_height = target->szHint.height;	279	int target_height = szHint.height;
		280	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		281	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
443		282
444	if (flags & propScale)	283	w = h_scale * target_width / 100;
		284	h = v_scale * target_height / 100;
		285
		286	if (image.flags & IM_KEEP_ASPECT)
445	{	287	{
446	float scale = (float)target_width / image_width;	288	float scale = (float)w / image_width;
447	min_it (scale, (float)target_height / image_height);	289	min_it (scale, (float)h / image_height);
448	w = image_width * scale + 0.5;	290	w = image_width * scale + 0.5;
449	h = image_height * scale + 0.5;	291	h = image_height * scale + 0.5;
450	}	292	}
451	else
452	{
453	w = h_scale * target_width / 100;
454	h = v_scale * target_height / 100;
455	}
456		293
457	if (!w) w = image_width;	294	if (!w) w = image_width;
458	if (!h) h = image_height;	295	if (!h) h = image_height;
459		296
460	if (flags & rootAlign)	297	if (image.flags & IM_ROOT_ALIGN)
461	{	298	{
462	target->get_window_origin (x, y);
463	x = -x;	299	x = -target_x;
464	y = -y;	300	y = -target_y;
465	}	301	}
466	else	302	else
467	{	303	{
468	x = make_align_position (h_align, target_width, w);	304	x = make_align_position (image.h_align, target_width, w);
469	y = make_align_position (v_align, target_height, h);	305	y = make_align_position (image.v_align, target_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	{	306	}
497	ShadingInfo as_shade;	307	}
498	as_shade.shading = shade;
499		308
500	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	309	bool
501	if (flags & tintSet)	310	rxvt_term::render_image (rxvt_image &image)
502	tint.get (c);	311	{
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;	312	int target_width = szHint.width;
526	int target_height = target->szHint.height;	313	int target_height = szHint.height;
527	int new_pmap_width = target_width;
528	int new_pmap_height = target_height;
529		314
530	int x = 0;	315	int x = 0;
531	int y = 0;	316	int y = 0;
532	int w = 0;	317	int w = 0;
533	int h = 0;	318	int h = 0;
534		319
535	TIMING_TEST_START (asim);	320	get_image_geometry (image, w, h, x, y);
536		321
537	if (original_asim)	322	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
543	|| y >= target_height
544	|| (x + w <= 0)
545	|| (y + h <= 0))))
546	{
547	if (background)
548	{
549	new_pmap_width = background->width;
550	new_pmap_height = background->height;
551	result = background;
552
553	if (background_tint != TINT_LEAVE_SAME)
554	{
555	ASImage *tmp = tile_asimage (target->asv, background, 0, 0,
556	target_width, target_height, background_tint,
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
566	{
567	result = original_asim;
568
569	if ((w != original_asim->width)
570	|| (h != original_asim->height))
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
578	if (background == NULL)
579	{
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
587	/* we also need to tile our image in both directions */
588	ASImage *tmp = tile_asimage (target->asv, result,
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
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;
727	}
728	# endif /* HAVE_AFTERIMAGE */
729
730	# ifdef HAVE_PIXBUF
731	bool
732	bgPixmap_t::render_image (unsigned long background_flags)
733	{
734	if (target == NULL)
735	return false;
736
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	323	&& (x >= target_width
764	|| y >= target_height	324	|| y >= target_height
765	|| (x + w <= 0)	325	|| x + w <= 0
766	|| (y + h <= 0)))	326	|| y + h <= 0))
767	return false;	327	return false;
768		328
769	result = pixbuf;	329	rxvt_img *img = image.img->scale (w, h);
770		330
771	if ((w != image_width)	331	if (image.flags & IM_TILE)
772	|| (h != image_height))	332	img->repeat_mode (RepeatNormal);
773	{	333	else
774	result = gdk_pixbuf_scale_simple (pixbuf,	334	img->repeat_mode (RepeatNone);
775	w, h,	335	img->sub_rect (-x, -y, target_width, target_height)->replace (img);
776	GDK_INTERP_BILINEAR);	336
		337	if (bg_flags & BG_IS_VALID)
777	}	338	{
778		339	double factor = image.alpha * 1. / 0xffff;
779	bool ret = false;	340	bg_img->blend (img, factor)->replace (img);
780
781	if (result)
782	{	341	}
783	XGCValues gcv;
784	GC gc;
785	Pixmap root_pmap;
786		342
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);	343	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
877	Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);	344	img->convert_format (format, pix_colors [Color_bg])->replace (img);
878		345
879	pa.repeat = True;	346	delete bg_img;
880	Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);	347	bg_img = img;
881	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
882	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
883	XFreePixmap (dpy, mask_pmap);
884		348
885	if (src && dst && mask)	349	return true;
886	{	350	}
887	XRenderColor mask_c;
888		351
889	mask_c.alpha = 0x8000;	352	rxvt_image::rxvt_image ()
890	mask_c.red = 0;	353	{
891	mask_c.green = 0;	354	alpha = 0xffff;
892	mask_c.blue = 0;	355	flags = 0;
893	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);	356	h_scale =
894	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);	357	v_scale = defaultScale;
895	}	358	h_align =
		359	v_align = defaultAlign;
896		360
897	XRenderFreePicture (dpy, src);	361	img = 0;
898	XRenderFreePicture (dpy, dst);	362	}
899	XRenderFreePicture (dpy, mask);
900		363
901	XFreePixmap (dpy, root_pmap);	364	bool
902	}	365	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
903	#endif	366	{
		367	if (!file || !*file)
		368	return false;
904		369
905	if (result != pixbuf)	370	const char *p = strchr (file, ';');
906	g_object_unref (result);
907		371
908	XFreeGC (target->dpy, gc);	372	if (p)
909
910	ret = true;
911	}	373	{
		374	size_t len = p - file;
		375	char *f = rxvt_temp_buf<char> (len + 1);
		376	memcpy (f, file, len);
		377	f[len] = '\0';
		378	file = f;
		379	}
912		380
		381	bool ret = set_file (s, file);
		382	alpha = 0x8000;
		383	if (ret)
		384	set_geometry (p ? p + 1 : "");
913	return ret;	385	return ret;
914	}	386	}
915	# endif /* HAVE_PIXBUF */
916		387
917	bool	388	bool
918	bgPixmap_t::set_file (const char *file)	389	rxvt_image::set_file (rxvt_screen *s, const char *file)
919	{	390	{
920	assert (file);	391	delete img;
921		392	img = rxvt_img::new_from_file (s, file);
922	if (*file)	393	return img != 0;
923	{
924	if (const char *p = strchr (file, ';'))
925	{
926	size_t len = p - file;
927	char *f = rxvt_temp_buf<char> (len + 1);
928	memcpy (f, file, len);
929	f[len] = '\0';
930	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	}
959
960	return false;
961	}	394	}
962		395
963	# endif /* BG_IMAGE_FROM_FILE */	396	# endif /* BG_IMAGE_FROM_FILE */
964		397
965	# ifdef ENABLE_TRANSPARENCY
966	bool	398	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)	399	image_effects::set_blur (const char *geom)
980	{	400	{
981	int changed = 0;	401	bool changed = false;
982	unsigned int hr, vr;	402	unsigned int hr, vr;
983	int junk;	403	int junk;
984	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	404	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
985		405
986	if (!(geom_flags & WidthValue))	406	if (!(geom_flags & WidthValue))
…		…
991	min_it (hr, 128);	411	min_it (hr, 128);
992	min_it (vr, 128);	412	min_it (vr, 128);
993		413
994	if (h_blurRadius != hr)	414	if (h_blurRadius != hr)
995	{	415	{
996	++changed;	416	changed = true;
997	h_blurRadius = hr;	417	h_blurRadius = hr;
998	}	418	}
999		419
1000	if (v_blurRadius != vr)	420	if (v_blurRadius != vr)
1001	{	421	{
1002	++changed;	422	changed = true;
1003	v_blurRadius = vr;	423	v_blurRadius = vr;
1004	}	424	}
1005		425
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);	426	return changed;
1024	}	427	}
1025		428
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	429	bool
1071	bgPixmap_t::set_tint (rxvt_color &new_tint)	430	image_effects::set_tint (const rxvt_color &new_tint)
1072	{	431	{
1073	if (!(flags & tintSet) || tint != new_tint)	432	if (!tint_set || tint != new_tint)
1074	{	433	{
1075	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
1076	tint = new_tint;	434	tint = new_tint;
1077	flags = (flags & ~tintFlags) | new_flags | tintSet;	435	tint_set = true;
		436
1078	return true;	437	return true;
1079	}	438	}
1080		439
1081	return false;	440	return false;
1082	}	441	}
1083		442
1084	bool	443	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)	444	image_effects::set_shade (const char *shade_str)
1100	{	445	{
1101	int new_shade = (shade_str) ? atoi (shade_str) : 100;	446	int new_shade = atoi (shade_str);
1102		447
1103	clamp_it (new_shade, -100, 200);	448	clamp_it (new_shade, -100, 200);
1104	if (new_shade < 0)	449	if (new_shade < 0)
1105	new_shade = 200 - (100 + new_shade);	450	new_shade = 200 - (100 + new_shade);
1106		451
1107	if (new_shade != shade)	452	if (new_shade != shade)
1108	{	453	{
1109	unsigned long new_flags = compute_tint_shade_flags ((flags & tintSet) ? &tint : NULL, new_shade);
1110	shade = new_shade;	454	shade = new_shade;
1111	flags = (flags & (~tintFlags | tintSet)) | new_flags;
1112	return true;	455	return true;
1113	}	456	}
1114		457
1115	return false;	458	return false;
1116	}	459	}
1117		460
1118	static void	461	# if ENABLE_TRANSPARENCY
1119	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)	462	/*
1120	{	463	* 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	464	* the tiled portion of the root pixmap that is supposed to be covered by
1298	* our window.	465	* our window.
1299	*/	466	*/
1300	unsigned long	467	bool
1301	bgPixmap_t::make_transparency_pixmap ()	468	rxvt_term::render_root_image ()
1302	{	469	{
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	470	/* root dimensions may change from call to call - but Display structure should
1309	* be always up-to-date, so let's use it :	471	* be always up-to-date, so let's use it :
1310	*/	472	*/
1311	Window root = target->display->root;
1312	int screen = target->display->screen;	473	int screen = display->screen;
1313	Display *dpy = target->dpy;
1314	int root_width = DisplayWidth (dpy, screen);	474	int root_width = DisplayWidth (dpy, screen);
1315	int root_height = DisplayHeight (dpy, screen);	475	int root_height = DisplayHeight (dpy, screen);
1316	unsigned int root_pmap_width, root_pmap_height;
1317	int window_width = target->szHint.width;	476	int window_width = szHint.width;
1318	int window_height = target->szHint.height;	477	int window_height = szHint.height;
1319	int sx, sy;	478	int sx, sy;
1320	XGCValues gcv;
1321	GC gc;
1322		479
1323	TIMING_TEST_START (tp);	480	sx = target_x;
1324	target->get_window_origin (sx, sy);	481	sy = target_y;
		482
		483	if (!root_img)
		484	return false;
1325		485
1326	/* check if we are outside of the visible part of the virtual screen : */	486	/* check if we are outside of the visible part of the virtual screen : */
1327	if (sx + window_width <= 0 || sy + window_height <= 0	487	if (sx + window_width <= 0 || sy + window_height <= 0
1328	|| sx >= root_width || sy >= root_height)	488	|| sx >= root_width || sy >= root_height)
1329	return 0;	489	return 0;
1330		490
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;	491	while (sx < 0) sx += root_img->w;
1358	while (sy < 0) sy += (int)root_height;	492	while (sy < 0) sy += root_img->h;
1359		493
1360	gcv.ts_x_origin = -sx;	494	rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
1361	gcv.ts_y_origin = -sy;
1362	gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1363		495
1364	if (gc)	496	if (root_effects.need_blur ())
1365	{	497	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		498
1372	if (tiled_root_pmap != None)	499	if (root_effects.need_tint ())
1373	{	500	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		501
1388	if (pixmap)	502	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1389	XFreePixmap (dpy, pixmap);	503	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1390		504
1391	pixmap = tiled_root_pmap;	505	delete bg_img;
1392	pmap_width = window_width;	506	bg_img = img;
1393	pmap_height = window_height;
1394	pmap_depth = root_depth;
1395	}
1396		507
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;	508	return true;
1413	}	509	}
1414		510
1415	return false;	511	void
		512	rxvt_term::bg_set_root_pixmap ()
		513	{
		514	delete root_img;
		515	root_img = rxvt_img::new_from_root (this);
1416	}	516	}
1417	# endif /* ENABLE_TRANSPARENCY */	517	# endif /* ENABLE_TRANSPARENCY */
1418		518
1419	# ifndef HAVE_AFTERIMAGE	519	void
1420	static void ShadeXImage(rxvt_term *term, XImage *srcImage, int shade, int rm, int gm, int bm);	520	rxvt_term::bg_render ()
1421	# endif
1422
1423	bool
1424	bgPixmap_t::render ()
1425	{	521	{
1426	unsigned long background_flags = 0;	522	if (bg_flags & BG_INHIBIT_RENDER)
1427
1428	if (target == NULL)
1429	return false;	523	return;
1430		524
1431	TIMING_TEST_START (tp);
1432
1433	invalidate ();	525	bg_invalidate ();
1434	# ifdef ENABLE_TRANSPARENCY	526	# if ENABLE_TRANSPARENCY
1435	if (flags & isTransparent)	527	if (bg_flags & BG_IS_TRANSPARENT)
1436	{	528	{
1437	/* we need to re-generate transparency pixmap in that case ! */	529	/* we need to re-generate transparency pixmap in that case ! */
1438	background_flags = make_transparency_pixmap ();	530	if (render_root_image ())
1439	if (background_flags == 0)	531	bg_flags |= BG_IS_VALID;
1440	return false;
1441	else if ((background_flags & transpTransformations) == (flags & transpTransformations)
1442	&& pmap_depth == target->depth)
1443	flags = flags & ~isInvalid;
1444	}	532	}
1445	# endif	533	# endif
1446		534
1447	# ifdef BG_IMAGE_FROM_FILE	535	# if BG_IMAGE_FROM_FILE
1448	if (have_image	536	if (fimage.img)
1449	|| (background_flags & transpTransformations) != (flags & transpTransformations))
1450	{
1451	if (render_image (background_flags))
1452	flags = flags & ~isInvalid;
1453	}	537	{
1454	# endif	538	if (render_image (fimage))
1455		539	bg_flags |= BG_IS_VALID;
1456	XImage *result = NULL;
1457
1458	if (background_flags && (flags & isInvalid))
1459	{	540	}
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	541	# endif
1477		542
1478	GC gc = XCreateGC (target->dpy, target->vt, 0UL, NULL);	543	if (!(bg_flags & BG_IS_VALID))
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	}	544	{
1518		545	delete bg_img;
1519	if (flags & isInvalid)	546	bg_img = 0;
1520	{	547	}
1521	if (pixmap != None)
1522	{
1523	XFreePixmap (target->dpy, pixmap);
1524	pixmap = None;
1525	}
1526	}
1527		548
1528	apply ();	549	scr_recolour (false);
		550	bg_flags |= BG_NEEDS_REFRESH;
1529		551
1530	XSync (target->dpy, False);
1531	valid_since = ev::now ();	552	bg_valid_since = ev::now ();
1532
1533	TIMING_TEST_PRINT_RESULT (tp);
1534
1535	return true;
1536	}
1537
1538	bool
1539	bgPixmap_t::set_target (rxvt_term *new_target)
1540	{
1541	if (new_target)
1542	if (target != new_target)
1543	{
1544	target = new_target;
1545	# ifdef ENABLE_TRANSPARENCY
1546	root_depth = DefaultDepthOfScreen (ScreenOfDisplay (target->dpy, target->display->screen));
1547	# endif
1548	return true;
1549	}
1550
1551	return false;
1552	}	553	}
1553		554
1554	void	555	void
1555	bgPixmap_t::apply ()	556	rxvt_term::bg_init ()
1556	{	557	{
1557	if (target)	558	#if BG_IMAGE_FROM_FILE
		559	if (rs[Rs_backgroundPixmap])
		560	{
		561	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
		562	&& !bg_window_position_sensitive ())
		563	update_background ();
1558	{	564	}
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	565	#endif
1575	{	566	}
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		567
1582	if (target->scrollBar.win)	568	void
1583	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);	569	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1584	}	570	{
1585	}	571	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		572
		573	if (tint_set)
		574	tint.get (c);
		575
		576	if (shade > 100)
		577	{
		578	c.r = c.r * (200 - shade) / 100;
		579	c.g = c.g * (200 - shade) / 100;
		580	c.b = c.b * (200 - shade) / 100;
		581	}
1586	else	582	else
1587	{	583	{
1588	/* set target background to a pixel */	584	c.r = c.r * shade / 100;
1589	XSetWindowBackground (target->dpy, target->parent[0], target->pix_colors[Color_border]);	585	c.g = c.g * shade / 100;
1590	XSetWindowBackground (target->dpy, target->vt, target->pix_colors[Color_bg]);	586	c.b = c.b * shade / 100;
1591	/* do we also need to set scrollbar's background here ? */	587	}
1592	if (target->scrollBar.win)
1593	XSetWindowBackground (target->dpy, target->scrollBar.win, target->pix_colors[Color_border]);
1594	}
1595		588
1596	/* don't want Expose on the parent or vt. It is better to use	589	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		590
1600	if (target->scrollBar.state && target->scrollBar.win)	591	if (shade > 100)
1601	{	592	{
1602	target->scrollBar.state = STATE_IDLE;	593	c.a = 0xffff;
1603	target->scrollBar.show (0);	594	c.r =
1604	}	595	c.g =
1605		596	c.b = 0xffff * (shade - 100) / 100;
1606	target->want_refresh = 1;	597	img->brightness (c.r, c.g, c.b, c.a);
1607	flags |= hasChanged;
1608	}	598	}
1609	}	599	}
1610		600
1611	#endif /* HAVE_BG_PIXMAP */	601	#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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