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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.156 by sf-exg, Tue Aug 9 18:41:31 2011 UTC vs.
Revision 1.241 by sf-exg, Mon Jun 11 14:45:53 2012 UTC

…		…
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 <schmorp@schmorp.de>	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	#if XRENDER
30	# include <X11/extensions/Xrender.h>
31	#endif
32
33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"
35	#endif
36
37	/*
38	* Pixmap geometry string interpretation :
39	* Each geometry string contains zero or one scale/position
40	* adjustment and may optionally be followed by a colon and one or more
41	* colon-delimited pixmap operations.
42	* The following table shows the valid geometry strings and their
43	* effects on the background image :
44	*
45	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
46	* W and H are percentages of the terminal window size.
47	* X and Y are also percentages; e.g., +50+50 centers
48	* the image in the window.
49	*
50	* Pixmap Operations : (should be prepended by a colon)
51	* tile Tile image. Scaling/position modifiers above will affect
52	* the tile size and origin.
53	* propscale When scaling, scale proportionally. That is, maintain the
54	* proper aspect ratio for the image. Any portion of the
55	* background not covered by the image is filled with the
56	* current background color.
57	* hscale Scale horizontally, tile vertically ?
58	* vscale Tile horizontally, scale vertically ?
59	* scale Scale both up and down
60	* auto Same as 100x100+50+50
61	*/
62
63	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
64	void	30	void
65	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
66	{	32	{
67	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
68	if (original_asim)	34	delete root_img;
69	safe_asimage_destroy (original_asim);	35	root_img = 0;
70	if (asv)
71	destroy_asvisual (asv, 0);
72	if (asimman)
73	destroy_image_manager (asimman, 0);
74	#endif	36	# endif
75		37
76	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
77	if (pixbuf)	39	fimage.destroy ();
78	g_object_unref (pixbuf);
79	#endif	40	# endif
80		41
81	if (bg_pixmap)	42	delete bg_img;
82	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
83	}
84
85	bool
86	rxvt_term::bg_set_position (int x, int y)
87	{
88
89	if (target_x != x
90	|| target_y != y)
91	{
92	target_x = x;
93	target_y = y;
94	return true;
95	}
96	return false;
97	}	44	}
98		45
99	bool	46	bool
100	rxvt_term::bg_window_size_sensitive ()	47	rxvt_term::bg_window_size_sensitive ()
101	{	48	{
102	# ifdef ENABLE_TRANSPARENCY	49	# if ENABLE_TRANSPARENCY
103	if (bg_flags & BG_IS_TRANSPARENT)	50	if (bg_flags & BG_IS_TRANSPARENT)
104	return true;	51	return true;
105	# endif	52	# endif
106		53
107	# ifdef BG_IMAGE_FROM_FILE	54	# if BG_IMAGE_FROM_FILE
108	if (bg_flags & BG_IS_FROM_FILE)	55	if (fimage.img)
109	{	56	{
110	if (bg_flags & BG_IS_SIZE_SENSITIVE)	57	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		58	|| fimage.img->w > szHint.width
		59	|| fimage.img->h > szHint.height)
111	return true;	60	return true;
112	}	61	}
113	# endif	62	# endif
114		63
115	return false;	64	return false;
116	}	65	}
117		66
118	bool	67	bool
119	rxvt_term::bg_window_position_sensitive ()	68	rxvt_term::bg_window_position_sensitive ()
120	{	69	{
121	# ifdef ENABLE_TRANSPARENCY	70	# if ENABLE_TRANSPARENCY
122	if (bg_flags & BG_IS_TRANSPARENT)	71	if (bg_flags & BG_IS_TRANSPARENT)
123	return true;	72	return true;
124	# endif	73	# endif
125		74
126	# ifdef BG_IMAGE_FROM_FILE	75	# if BG_IMAGE_FROM_FILE
127	if (bg_flags & BG_IS_FROM_FILE)	76	if (fimage.img)
128	{	77	{
129	if (bg_flags & BG_ROOT_ALIGN)	78	if (fimage.flags & IM_ROOT_ALIGN)
130	return true;	79	return true;
131	}	80	}
132	# endif	81	# endif
133		82
134	return false;	83	return false;
135	}	84	}
136		85
137	# ifdef BG_IMAGE_FROM_FILE	86	# if BG_IMAGE_FROM_FILE
138	static inline bool
139	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
140	{
141	if (geom_flags & flag)
142	{
143	if (new_value > 1000)
144	new_value = 1000;
145	if (new_value != scale)
146	{
147	scale = new_value;
148	return true;
149	}
150	}
151	return false;
152	}
153
154	static inline bool
155	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
156	{
157	if (geom_flags & flag)
158	{
159	if (new_value < -100)
160	new_value = -100;
161	else if (new_value > 200)
162	new_value = 200;
163	if (new_value != align)
164	{
165	align = new_value;
166	return true;
167	}
168	}
169	return false;
170	}
171
172	static inline int	87	static inline int
173	make_align_position (int align, int window_size, int image_size)	88	make_align_position (int align, int window_size, int image_size)
174	{	89	{
175	int diff = window_size - image_size;
176	int smaller = min (image_size, window_size);
177
178	if (align >= 0 && align <= 100)	90	if (align >= 0 && align <= 100)
179	return diff * align / 100;	91	return lerp (0, window_size - image_size, align);
180	else if (align > 100 && align <= 200)	92	else if (align > 100)
181	return ((align - 100) * smaller / 100) + window_size - smaller;	93	return lerp (window_size - image_size, window_size, align - 100);
182	else if (align >= -100 && align < 0)	94	else
183	return ((align + 100) * smaller / 100) - image_size;	95	return lerp (-image_size, 0, align + 100);
184	return 0;
185	}	96	}
186		97
187	static inline int	98	static void
188	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	99	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
189	{	100	{
190	int src_pos = 0;	101	if (!strcasecmp (style, "tiled"))
191	dst_pos = pos;
192	dst_size = size;
193	if (pos < 0)
194	{
195	src_pos = -pos;
196	dst_pos = 0;
197	dst_size += pos;
198	}	102	{
199		103	flags = IM_TILE;
200	if (dst_pos + dst_size > target_size)	104	w = h = noScale;
201	dst_size = target_size - dst_pos;	105	x = y = 0;
202	return src_pos;	106	}
		107	else if (!strcasecmp (style, "aspect-stretched"))
		108	{
		109	flags = IM_KEEP_ASPECT;
		110	w = h = windowScale;
		111	x = y = centerAlign;
		112	}
		113	else if (!strcasecmp (style, "stretched"))
		114	{
		115	flags = 0;
		116	w = h = windowScale;
		117	x = y = centerAlign;
		118	}
		119	else if (!strcasecmp (style, "centered"))
		120	{
		121	flags = 0;
		122	w = h = noScale;
		123	x = y = centerAlign;
		124	}
		125	else if (!strcasecmp (style, "root-tiled"))
		126	{
		127	flags = IM_TILE|IM_ROOT_ALIGN;
		128	w = h = noScale;
		129	x = y = 0;
		130	}
203	}	131	}
204		132
205	bool	133	bool
206	rxvt_term::bg_set_geometry (const char *geom, bool update)	134	rxvt_image::set_geometry (const char *geom, bool update)
207	{	135	{
208	bool changed = false;	136	bool changed = false;
209	int geom_flags = 0;	137	int geom_flags = 0;
210	int x = 0, y = 0;	138	int x = h_align;
		139	int y = v_align;
211	unsigned int w = 0, h = 0;	140	unsigned int w = h_scale;
212	unsigned int n;	141	unsigned int h = v_scale;
213	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	142	uint8_t new_flags = 0;
214	const char *ops;
215		143
216	if (geom == NULL)	144	if (geom == NULL)
217	return false;	145	return false;
218		146
219	char str[256];	147	if (geom[0])
220
221	ops = strchr (geom, ':');
222	if (ops == NULL)
223	n = strlen (geom);
224	else
225	n = ops - geom;
226
227	if (n >= sizeof (str))
228	return false;
229
230	memcpy (str, geom, n);
231	str[n] = '\0';
232	rxvt_strtrim (str);
233
234	if (str[0])
235	{	148	{
236	/* we have geometry string - let's handle it prior to applying ops */	149	char **arr = rxvt_strsplit (':', geom);
		150
		151	for (int i = 0; arr[i]; i++)
		152	{
		153	if (!strncasecmp (arr[i], "style=", 6))
		154	{
		155	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		156	geom_flags = WidthValue|HeightValue|XValue|YValue;
		157	}
		158	else if (!strcasecmp (arr[i], "op=tile"))
		159	new_flags |= IM_TILE;
		160	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		161	new_flags |= IM_KEEP_ASPECT;
		162	else if (!strcasecmp (arr[i], "op=root-align"))
		163	new_flags |= IM_ROOT_ALIGN;
		164
		165	// deprecated
		166	else if (!strcasecmp (arr[i], "tile"))
		167	{
		168	new_flags |= IM_TILE;
		169	w = h = noScale;
		170	geom_flags |= WidthValue|HeightValue;
		171	}
		172	else if (!strcasecmp (arr[i], "propscale"))
		173	{
		174	new_flags |= IM_KEEP_ASPECT;
		175	w = h = windowScale;
		176	geom_flags |= WidthValue|HeightValue;
		177	}
		178	else if (!strcasecmp (arr[i], "hscale"))
		179	{
		180	new_flags |= IM_TILE;
		181	w = windowScale;
		182	h = noScale;
		183	geom_flags |= WidthValue|HeightValue;
		184	}
		185	else if (!strcasecmp (arr[i], "vscale"))
		186	{
		187	new_flags |= IM_TILE;
		188	h = windowScale;
		189	w = noScale;
		190	geom_flags |= WidthValue|HeightValue;
		191	}
		192	else if (!strcasecmp (arr[i], "scale"))
		193	{
		194	w = h = windowScale;
		195	geom_flags |= WidthValue|HeightValue;
		196	}
		197	else if (!strcasecmp (arr[i], "auto"))
		198	{
		199	w = h = windowScale;
		200	x = y = centerAlign;
		201	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		202	}
		203	else if (!strcasecmp (arr[i], "root"))
		204	{
		205	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		206	w = h = noScale;
		207	geom_flags |= WidthValue|HeightValue;
		208	}
		209
		210	else
237	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	211	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
238	} /* done parsing geometry string */	212	} /* done parsing ops */
		213
		214	rxvt_free_strsplit (arr);
		215	}
		216
		217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
239		218
240	if (!update)	219	if (!update)
241	{	220	{
242	if (!(geom_flags & XValue))	221	if (!(geom_flags & XValue))
243	x = y = defaultAlign;	222	x = y = defaultAlign;
…		…
248	w = h = defaultScale;	227	w = h = defaultScale;
249	else if (!(geom_flags & HeightValue))	228	else if (!(geom_flags & HeightValue))
250	h = w;	229	h = w;
251	else if (!(geom_flags & WidthValue))	230	else if (!(geom_flags & WidthValue))
252	w = h;	231	w = h;
253
254	geom_flags |= WidthValue|HeightValue|XValue|YValue;
255	}
256
257	if (ops)
258	{	232	}
259	char **arr = rxvt_strsplit (':', ops + 1);
260		233
261	for (int i = 0; arr[i]; i++)	234	clamp_it (x, -100, 200);
262	{	235	clamp_it (y, -100, 200);
263	if (!strcasecmp (arr[i], "tile"))
264	{
265	new_flags |= BG_TILE;
266	w = h = noScale;
267	geom_flags |= WidthValue|HeightValue;
268	}
269	else if (!strcasecmp (arr[i], "propscale"))
270	{
271	new_flags |= BG_PROP_SCALE;
272	}
273	else if (!strcasecmp (arr[i], "hscale"))
274	{
275	if (w == 0) w = windowScale;
276		236
277	h = noScale;	237	if (flags != new_flags
278	geom_flags |= WidthValue|HeightValue;	238	|| h_scale != w
279	}	239	|| v_scale != h
280	else if (!strcasecmp (arr[i], "vscale"))	240	|| h_align != x
281	{	241	|| v_align != y)
282	if (h == 0) h = windowScale;
283
284	w = noScale;
285	geom_flags |= WidthValue|HeightValue;
286	}
287	else if (!strcasecmp (arr[i], "scale"))
288	{
289	if (h == 0) h = windowScale;
290	if (w == 0) w = windowScale;
291
292	geom_flags |= WidthValue|HeightValue;
293	}
294	else if (!strcasecmp (arr[i], "auto"))
295	{
296	w = h = windowScale;
297	x = y = centerAlign;
298	geom_flags |= WidthValue|HeightValue|XValue|YValue;
299	}
300	else if (!strcasecmp (arr[i], "root"))
301	{
302	new_flags |= BG_TILE|BG_ROOT_ALIGN;
303	w = h = noScale;
304	geom_flags |= WidthValue|HeightValue;
305	}
306	} /* done parsing ops */
307
308	rxvt_free_strsplit (arr);
309	}	242	{
310
311	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
312	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
313	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
314	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
315
316	if (new_flags != bg_flags)
317	{
318	bg_flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
319	changed = true;	248	changed = true;
320	}	249	}
321		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
322	return changed;	256	return changed;
323	}	257	}
324		258
325	void	259	void
326	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	260	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
327	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
328	int target_width = szHint.width;	264	int parent_width = szHint.width;
329	int target_height = szHint.height;	265	int parent_height = szHint.height;
		266	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		267	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
330		268
331	if (bg_flags & BG_PROP_SCALE)	269	w = h_scale * parent_width / 100;
		270	h = v_scale * parent_height / 100;
		271
		272	if (image.flags & IM_KEEP_ASPECT)
332	{	273	{
333	float scale = (float)target_width / image_width;	274	float scale = (float)w / image_width;
334	min_it (scale, (float)target_height / image_height);	275	min_it (scale, (float)h / image_height);
335	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
336	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
337	}	278	}
338	else
339	{
340	w = h_scale * target_width / 100;
341	h = v_scale * target_height / 100;
342	}
343		279
344	if (!w) w = image_width;	280	if (!w) w = image_width;
345	if (!h) h = image_height;	281	if (!h) h = image_height;
346		282
347	if (bg_flags & BG_ROOT_ALIGN)	283	if (image.flags & IM_ROOT_ALIGN)
348	{	284	{
349	x = -target_x;	285	x = -parent_x;
350	y = -target_y;	286	y = -parent_y;
351	}	287	}
352	else	288	else
353	{	289	{
354	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
355	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
356	}
357
358	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
359	if (!(bg_flags & BG_TILE)
360	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
361	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
362	|| w > target_width || h > target_height)
363	bg_flags |= BG_IS_SIZE_SENSITIVE;
364	}
365
366	# ifdef HAVE_AFTERIMAGE
367	bool
368	rxvt_term::render_image (unsigned long tr_flags)
369	{
370	init_asv ();
371
372	ASImage *background = NULL;
373	ARGB32 background_tint = TINT_LEAVE_SAME;
374
375	# ifdef ENABLE_TRANSPARENCY
376	if (tr_flags)
377	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
378
379	if (tr_flags & BG_NEEDS_TINT)
380	{	292	}
381	ShadingInfo as_shade;	293	}
382	as_shade.shading = shade;
383		294
384	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
385	if (bg_flags & BG_TINT_SET)	296	rxvt_term::render_image (rxvt_image &image)
386	tint.get (c);	297	{
387	as_shade.tintColor.red = c.r;
388	as_shade.tintColor.green = c.g;
389	as_shade.tintColor.blue = c.b;
390
391	background_tint = shading2tint32 (&as_shade);
392	}
393
394	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
395	{
396	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
397	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
398	100, ASIMAGE_QUALITY_DEFAULT);
399	if (tmp)
400	{
401	destroy_asimage (&background);
402	background = tmp;
403	}
404	}
405	# endif
406
407	ASImage *result = 0;
408
409	int target_width = szHint.width;	298	int parent_width = szHint.width;
410	int target_height = szHint.height;	299	int parent_height = szHint.height;
411	int new_pmap_width = target_width;
412	int new_pmap_height = target_height;
413		300
414	int x = 0;	301	int x = 0;
415	int y = 0;	302	int y = 0;
416	int w = 0;	303	int w = 0;
417	int h = 0;	304	int h = 0;
418		305
419	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
420	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
421		307
422	if (!original_asim	308	if (!(image.flags & IM_ROOT_ALIGN)
423	|| (!(bg_flags & BG_ROOT_ALIGN)
424	&& (x >= target_width	309	&& (x >= parent_width
425	|| y >= target_height	310	|| y >= parent_height
426	|| (x + w <= 0)	311	|| x + w <= 0
427	|| (y + h <= 0))))	312	|| y + h <= 0))
428	{	313	return false;
429	if (background)
430	{
431	new_pmap_width = background->width;
432	new_pmap_height = background->height;
433	result = background;
434		314
435	if (background_tint != TINT_LEAVE_SAME)	315	rxvt_img *img = image.img->scale (w, h);
436	{	316
437	ASImage *tmp = tile_asimage (asv, background, 0, 0,	317	if (image.flags & IM_TILE)
438	target_width, target_height, background_tint,	318	img->repeat_mode (RepeatNormal);
439	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
440	if (tmp)
441	result = tmp;
442	}
443	}
444	else
445	new_pmap_width = new_pmap_height = 0;
446	}
447	else	319	else
448	{	320	img->repeat_mode (RepeatNone);
449	result = original_asim;	321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
450		322
451	if ((w != original_asim->width)	323	if (bg_flags & BG_IS_VALID)
452	|| (h != original_asim->height))
453	{
454	result = scale_asimage (asv, original_asim,
455	w, h,
456	background ? ASA_ASImage : ASA_XImage,
457	100, ASIMAGE_QUALITY_DEFAULT);
458	}
459
460	if (background == NULL)
461	{
462	if (bg_flags & BG_TILE)
463	{
464	/* if tiling - pixmap has to be sized exactly as the image,
465	but there is no need to make it bigger than the window! */
466	new_pmap_width = min (result->width, target_width);
467	new_pmap_height = min (result->height, target_height);
468
469	/* we also need to tile our image in both directions */
470	ASImage *tmp = tile_asimage (asv, result,
471	(int)result->width - x,
472	(int)result->height - y,
473	new_pmap_width,
474	new_pmap_height,
475	TINT_LEAVE_SAME, ASA_XImage,
476	100, ASIMAGE_QUALITY_DEFAULT);
477	if (tmp)
478	{
479	if (result != original_asim)
480	destroy_asimage (&result);
481
482	result = tmp;
483	}
484	}
485	}
486	else
487	{
488	/* if blending background and image - pixmap has to be sized same as target window */
489	ASImageLayer *layers = create_image_layers (2);
490
491	layers[0].im = background;
492	layers[0].clip_width = target_width;
493	layers[0].clip_height = target_height;
494	layers[0].tint = background_tint;
495	layers[1].im = result;
496
497	if (bg_flags & BG_TILE)
498	{
499	/* tile horizontally */
500	while (x > 0) x -= (int)result->width;
501	layers[1].dst_x = x;
502	layers[1].clip_width = result->width+target_width;
503	}
504	else
505	{
506	/* clip horizontally */
507	layers[1].dst_x = x;
508	layers[1].clip_width = result->width;
509	}
510
511	if (bg_flags & BG_TILE)
512	{
513	while (y > 0) y -= (int)result->height;
514	layers[1].dst_y = y;
515	layers[1].clip_height = result->height + target_height;
516	}
517	else
518	{
519	layers[1].dst_y = y;
520	layers[1].clip_height = result->height;
521	}
522
523	if (rs[Rs_blendtype])
524	{
525	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
526	if (layers[1].merge_scanlines == NULL)
527	layers[1].merge_scanlines = alphablend_scanlines;
528	}
529
530	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
531	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
532
533	if (tmp)
534	{
535	if (result != original_asim)
536	destroy_asimage (&result);
537
538	result = tmp;
539	}
540
541	free (layers);
542	}
543	}	324	{
544		325	double factor = image.alpha * 1. / 0xffff;
545	bool ret = false;	326	bg_img->blend (img, factor)->replace (img);
546
547	if (result)
548	{	327	}
549	XGCValues gcv;
550	GC gc;
551		328
552	/* create Pixmap */	329	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
553	if (bg_pixmap == None	330	img->convert_format (format, pix_colors [Color_bg])->replace (img);
554	|| bg_pmap_width != new_pmap_width
555	|| bg_pmap_height != new_pmap_height)
556	{
557	if (bg_pixmap)
558	XFreePixmap (dpy, bg_pixmap);
559	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
560	bg_pmap_width = new_pmap_width;
561	bg_pmap_height = new_pmap_height;
562	}
563	/* fill with background color (if result's not completely overlapping it) */
564	gcv.foreground = pix_colors[Color_bg];
565	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
566		331
567	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;	332	delete bg_img;
568	int dst_width = result->width, dst_height = result->height;	333	bg_img = img;
569	if (background == NULL)
570	{
571	if (!(bg_flags & BG_TILE))
572	{
573	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
574	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
575	}
576		334
577	if (dst_x > 0 || dst_y > 0
578	|| dst_x + dst_width < new_pmap_width
579	|| dst_y + dst_height < new_pmap_height)
580	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
581	}
582
583	/* put result on pixmap */
584	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
585	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
586
587	if (result != background && result != original_asim)
588	destroy_asimage (&result);
589
590	XFreeGC (dpy, gc);
591
592	ret = true;
593	}
594
595	if (background)
596	destroy_asimage (&background);
597
598	return ret;
599	}
600	# endif /* HAVE_AFTERIMAGE */
601
602	# ifdef HAVE_PIXBUF
603	bool
604	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
605	int src_x, int src_y, int dst_x, int dst_y,
606	unsigned int width, unsigned int height)
607	{
608	XImage *ximage;
609	char *data, *line;
610	int bytes_per_pixel;
611	int width_r, width_g, width_b;
612	int sh_r, sh_g, sh_b;
613	int rowstride;
614	int channels;
615	unsigned char *row;
616
617	if (visual->c_class != TrueColor)
618	return false;
619
620	if (depth == 24 || depth == 32)
621	bytes_per_pixel = 4;
622	else if (depth == 15 || depth == 16)
623	bytes_per_pixel = 2;
624	else
625	return false;
626
627	width_r = ecb_popcount32 (visual->red_mask);
628	width_g = ecb_popcount32 (visual->green_mask);
629	width_b = ecb_popcount32 (visual->blue_mask);
630
631	if (width_r > 8 || width_g > 8 || width_b > 8)
632	return false;
633
634	sh_r = ecb_ctz32 (visual->red_mask);
635	sh_g = ecb_ctz32 (visual->green_mask);
636	sh_b = ecb_ctz32 (visual->blue_mask);
637
638	if (width > INT_MAX / height / bytes_per_pixel)
639	return false;
640
641	data = (char *)malloc (width * height * bytes_per_pixel);
642	if (!data)
643	return false;
644
645	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
646	width, height, bytes_per_pixel * 8, 0);
647	if (!ximage)
648	{
649	free (data);
650	return false;
651	}
652
653	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
654
655	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
656	channels = gdk_pixbuf_get_n_channels (pixbuf);
657	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
658	line = data;
659
660	for (int y = 0; y < height; y++)
661	{
662	for (int x = 0; x < width; x++)
663	{
664	unsigned char *pixel = row + x * channels;
665	uint32_t value;
666
667	value = ((pixel[0] >> (8 - width_r)) << sh_r)
668	| ((pixel[1] >> (8 - width_g)) << sh_g)
669	| ((pixel[2] >> (8 - width_b)) << sh_b);
670
671	if (bytes_per_pixel == 4)
672	((uint32_t *)line)[x] = value;
673	else
674	((uint16_t *)line)[x] = value;
675	}
676
677	row += rowstride;
678	line += ximage->bytes_per_line;
679	}
680
681	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
682	XDestroyImage (ximage);
683	return true;	335	return true;
684	}	336	}
685		337
686	bool	338	rxvt_image::rxvt_image ()
687	rxvt_term::render_image (unsigned long tr_flags)
688	{	339	{
689	if (!pixbuf)	340	alpha = 0xffff;
690	return false;	341	flags = 0;
		342	h_scale =
		343	v_scale = defaultScale;
		344	h_align =
		345	v_align = defaultAlign;
691		346
692	if (tr_flags	347	img = 0;
693	&& !(bg_flags & BG_HAS_RENDER))
694	return false;
695
696	GdkPixbuf *result;
697
698	int image_width = gdk_pixbuf_get_width (pixbuf);
699	int image_height = gdk_pixbuf_get_height (pixbuf);
700
701	int target_width = szHint.width;
702	int target_height = szHint.height;
703	int new_pmap_width = target_width;
704	int new_pmap_height = target_height;
705
706	int x = 0;
707	int y = 0;
708	int w = 0;
709	int h = 0;
710
711	get_image_geometry (image_width, image_height, w, h, x, y);
712
713	if (!(bg_flags & BG_ROOT_ALIGN)
714	&& (x >= target_width
715	|| y >= target_height
716	|| (x + w <= 0)
717	|| (y + h <= 0)))
718	return false;
719
720	result = pixbuf;
721
722	if ((w != image_width)
723	|| (h != image_height))
724	{
725	result = gdk_pixbuf_scale_simple (pixbuf,
726	w, h,
727	GDK_INTERP_BILINEAR);
728	}
729
730	if (!result)
731	return false;
732
733	bool ret = false;
734
735	XGCValues gcv;
736	GC gc;
737	Pixmap root_pmap;
738
739	image_width = gdk_pixbuf_get_width (result);
740	image_height = gdk_pixbuf_get_height (result);
741
742	if (tr_flags)
743	{
744	root_pmap = bg_pixmap;
745	bg_pixmap = None;
746	}
747	else
748	{
749	if (bg_flags & BG_TILE)
750	{
751	new_pmap_width = min (image_width, target_width);
752	new_pmap_height = min (image_height, target_height);
753	}
754	}
755
756	if (bg_pixmap == None
757	|| bg_pmap_width != new_pmap_width
758	|| bg_pmap_height != new_pmap_height)
759	{
760	if (bg_pixmap)
761	XFreePixmap (dpy, bg_pixmap);
762	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
763	bg_pmap_width = new_pmap_width;
764	bg_pmap_height = new_pmap_height;
765	}
766
767	gcv.foreground = pix_colors[Color_bg];
768	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
769
770	if (gc)
771	{
772	if (bg_flags & BG_TILE)
773	{
774	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
775	pixbuf_to_pixmap (result, tile, gc,
776	0, 0,
777	0, 0,
778	image_width, image_height);
779
780	gcv.tile = tile;
781	gcv.fill_style = FillTiled;
782	gcv.ts_x_origin = x;
783	gcv.ts_y_origin = y;
784	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
785
786	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
787	XFreePixmap (dpy, tile);
788	}
789	else
790	{
791	int src_x, src_y, dst_x, dst_y;
792	int dst_width, dst_height;
793
794	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
795	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
796
797	if (dst_x > 0 || dst_y > 0
798	|| dst_x + dst_width < new_pmap_width
799	|| dst_y + dst_height < new_pmap_height)
800	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
801
802	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
803	pixbuf_to_pixmap (result, bg_pixmap, gc,
804	src_x, src_y,
805	dst_x, dst_y,
806	dst_width, dst_height);
807	}
808
809	#if XRENDER
810	if (tr_flags)
811	{
812	XRenderPictureAttributes pa;
813
814	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);
815	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
816
817	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
818	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
819
820	pa.repeat = True;
821	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
822	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
823	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
824	XFreePixmap (dpy, mask_pmap);
825
826	XRenderColor mask_c;
827
828	mask_c.alpha = 0x8000;
829	mask_c.red = 0;
830	mask_c.green = 0;
831	mask_c.blue = 0;
832	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
833	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
834
835	XRenderFreePicture (dpy, src);
836	XRenderFreePicture (dpy, dst);
837	XRenderFreePicture (dpy, mask);
838	}
839	#endif
840
841	XFreeGC (dpy, gc);
842
843	ret = true;
844	}
845
846	if (result != pixbuf)
847	g_object_unref (result);
848
849	if (tr_flags)
850	XFreePixmap (dpy, root_pmap);
851
852	return ret;
853	}	348	}
854	# endif /* HAVE_PIXBUF */
855		349
856	bool	350	void
857	rxvt_term::bg_set_file (const char *file)	351	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
858	{	352	{
859	if (!file || !*file)	353	if (!file || !*file)
860	return false;	354	return;
861		355
862	if (const char *p = strchr (file, ';'))	356	const char *p = strchr (file, ';');
		357
		358	if (p)
863	{	359	{
864	size_t len = p - file;	360	size_t len = p - file;
865	char *f = rxvt_temp_buf<char> (len + 1);	361	char *f = rxvt_temp_buf<char> (len + 1);
866	memcpy (f, file, len);	362	memcpy (f, file, len);
867	f[len] = '\0';	363	f[len] = '\0';
868	file = f;	364	file = f;
869	}	365	}
870		366
871	# ifdef HAVE_AFTERIMAGE	367	set_file (s, file);
872	if (!asimman)	368	alpha = 0x8000;
873	asimman = create_generic_imageman (rs[Rs_path]);	369	set_geometry (p ? p + 1 : "");
874	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	370	}
875	if (image)
876	{
877	if (original_asim)
878	safe_asimage_destroy (original_asim);
879	original_asim = image;
880	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
881	return true;
882	}
883	# endif
884		371
885	# ifdef HAVE_PIXBUF	372	void
886	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	373	rxvt_image::set_file (rxvt_screen *s, const char *file)
887	if (image)	374	{
888	{	375	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
889	if (pixbuf)	376	delete img;
890	g_object_unref (pixbuf);	377	img = img2;
891	pixbuf = image;
892	bg_flags |= BG_IS_FROM_FILE;
893	return true;
894	}
895	# endif
896
897	return false;
898	}	378	}
899		379
900	# endif /* BG_IMAGE_FROM_FILE */	380	# endif /* BG_IMAGE_FROM_FILE */
901		381
902	# ifdef ENABLE_TRANSPARENCY
903	bool	382	bool
904	rxvt_term::bg_set_transparent ()	383	image_effects::set_blur (const char *geom)
905	{
906	if (!(bg_flags & BG_IS_TRANSPARENT))
907	{
908	bg_flags |= BG_IS_TRANSPARENT;
909	return true;
910	}
911
912	return false;
913	}
914
915	bool
916	rxvt_term::bg_set_blur (const char *geom)
917	{	384	{
918	bool changed = false;	385	bool changed = false;
919	unsigned int hr, vr;	386	unsigned int hr, vr;
920	int junk;	387	int junk;
921	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	388	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
938	{	405	{
939	changed = true;	406	changed = true;
940	v_blurRadius = vr;	407	v_blurRadius = vr;
941	}	408	}
942		409
943	if (v_blurRadius == 0 && h_blurRadius == 0)
944	bg_flags &= ~BG_NEEDS_BLUR;
945	else
946	bg_flags |= BG_NEEDS_BLUR;
947
948	return changed;	410	return changed;
949	}	411	}
950		412
951	void
952	rxvt_term::set_tint_shade_flags ()
953	{
954	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
955	bool has_shade = shade != 100;
956
957	bg_flags &= ~BG_TINT_FLAGS;
958
959	if (bg_flags & BG_TINT_SET)
960	{
961	tint.get (c);
962	if (!has_shade
963	&& (c.r <= 0x00ff || c.r >= 0xff00)
964	&& (c.g <= 0x00ff || c.g >= 0xff00)
965	&& (c.b <= 0x00ff || c.b >= 0xff00))
966	bg_flags |= BG_TINT_BITAND;
967	}
968
969	if (has_shade || (bg_flags & BG_TINT_SET))
970	bg_flags |= BG_NEEDS_TINT;
971	}
972
973	bool	413	bool
974	rxvt_term::bg_set_tint (rxvt_color &new_tint)	414	image_effects::set_tint (const rxvt_color &new_tint)
975	{	415	{
976	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	416	if (!tint_set || tint != new_tint)
977	{	417	{
978	tint = new_tint;	418	tint = new_tint;
979	bg_flags |= BG_TINT_SET;	419	tint_set = true;
980	set_tint_shade_flags ();	420
981	return true;	421	return true;
982	}	422	}
983		423
984	return false;	424	return false;
985	}	425	}
986		426
987	bool	427	bool
988	rxvt_term::bg_set_shade (const char *shade_str)	428	image_effects::set_shade (const char *shade_str)
989	{	429	{
990	int new_shade = (shade_str) ? atoi (shade_str) : 100;	430	int new_shade = atoi (shade_str);
991		431
992	clamp_it (new_shade, -100, 200);	432	clamp_it (new_shade, -100, 200);
993	if (new_shade < 0)	433	if (new_shade < 0)
994	new_shade = 200 - (100 + new_shade);	434	new_shade = 200 - (100 + new_shade);
995		435
996	if (new_shade != shade)	436	if (new_shade != shade)
997	{	437	{
998	shade = new_shade;	438	shade = new_shade;
999	set_tint_shade_flags ();
1000	return true;	439	return true;
1001	}	440	}
1002		441
1003	return false;	442	return false;
1004	}	443	}
1005		444
1006	#if XRENDER	445	# if ENABLE_TRANSPARENCY
1007	static void
1008	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1009	{
1010	double sigma = radius / 2.0;
1011	double scale = sqrt (2.0 * M_PI) * sigma;
1012	double sum = 0.0;
1013
1014	for (int i = 0; i < width; i++)
1015	{
1016	double x = i - width / 2;
1017	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1018	sum += kernel[i];
1019	}
1020
1021	params[0] = XDoubleToFixed (width);
1022	params[1] = XDoubleToFixed (1);
1023
1024	for (int i = 0; i < width; i++)
1025	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1026	}
1027	#endif
1028
1029	bool
1030	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1031	{
1032	bool ret = false;
1033	#if XRENDER
1034	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1035	double *kernel = (double *)malloc (size * sizeof (double));
1036	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1037
1038	XRenderPictureAttributes pa;
1039	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1040
1041	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1042	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1043
1044	if (kernel && params)
1045	{
1046	if (h_blurRadius)
1047	{
1048	size = h_blurRadius * 2 + 1;
1049	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1050
1051	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1052	XRenderComposite (dpy,
1053	PictOpSrc,
1054	src,
1055	None,
1056	dst,
1057	0, 0,
1058	0, 0,
1059	0, 0,
1060	width, height);
1061	}
1062
1063	if (v_blurRadius)
1064	{
1065	size = v_blurRadius * 2 + 1;
1066	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1067	::swap (params[0], params[1]);
1068
1069	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1070	XRenderComposite (dpy,
1071	PictOpSrc,
1072	src,
1073	None,
1074	dst,
1075	0, 0,
1076	0, 0,
1077	0, 0,
1078	width, height);
1079	}
1080
1081	ret = true;
1082	}
1083
1084	free (kernel);
1085	free (params);
1086	XRenderFreePicture (dpy, src);
1087	XRenderFreePicture (dpy, dst);
1088	#endif
1089	return ret;
1090	}
1091
1092	bool
1093	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1094	{
1095	bool ret = false;
1096
1097	if (bg_flags & BG_TINT_BITAND)
1098	{
1099	XGCValues gcv;
1100	GC gc;
1101
1102	/* In this case we can tint image server-side getting significant
1103	* performance improvements, as we eliminate XImage transfer
1104	*/
1105	gcv.foreground = Pixel (tint);
1106	gcv.function = GXand;
1107	gcv.fill_style = FillSolid;
1108	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1109	if (gc)
1110	{
1111	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1112	ret = true;
1113	XFreeGC (dpy, gc);
1114	}
1115	}
1116	else
1117	{
1118	# if XRENDER
1119	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1120
1121	if (bg_flags & BG_TINT_SET)
1122	tint.get (c);
1123
1124	if (shade <= 100)
1125	{
1126	c.r = c.r * shade / 100;
1127	c.g = c.g * shade / 100;
1128	c.b = c.b * shade / 100;
1129	}
1130	else
1131	{
1132	c.r = c.r * (200 - shade) / 100;
1133	c.g = c.g * (200 - shade) / 100;
1134	c.b = c.b * (200 - shade) / 100;
1135	}
1136
1137	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1138	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1139	XRenderPictureAttributes pa;
1140
1141	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1142
1143	pa.repeat = True;
1144
1145	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1146	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1147	XFreePixmap (dpy, overlay_pmap);
1148
1149	pa.component_alpha = True;
1150	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1151	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1152	XFreePixmap (dpy, mask_pmap);
1153
1154	XRenderColor mask_c;
1155
1156	mask_c.alpha = 0xffff;
1157	mask_c.red =
1158	mask_c.green =
1159	mask_c.blue = 0;
1160	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1161
1162	mask_c.alpha = 0;
1163	mask_c.red = 0xffff - c.r;
1164	mask_c.green = 0xffff - c.g;
1165	mask_c.blue = 0xffff - c.b;
1166	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1167	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1168
1169	if (shade > 100)
1170	{
1171	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1172	mask_c.alpha = 0;
1173	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1174
1175	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1176	}
1177
1178	ret = true;
1179
1180	XRenderFreePicture (dpy, mask_pic);
1181	XRenderFreePicture (dpy, overlay_pic);
1182	XRenderFreePicture (dpy, back_pic);
1183	# endif
1184	}
1185
1186	return ret;
1187	}
1188
1189	/*	446	/*
1190	* Builds a pixmap of the same size as the terminal window that contains	447	* Builds a pixmap of the same size as the terminal window that contains
1191	* the tiled portion of the root pixmap that is supposed to be covered by	448	* the tiled portion of the root pixmap that is supposed to be covered by
1192	* our window.	449	* our window.
1193	*/	450	*/
1194	unsigned long	451	bool
1195	rxvt_term::make_transparency_pixmap ()	452	rxvt_term::render_root_image ()
1196	{	453	{
1197	unsigned long result = 0;
1198
1199	/* root dimensions may change from call to call - but Display structure should	454	/* root dimensions may change from call to call - but Display structure should
1200	* be always up-to-date, so let's use it :	455	* be always up-to-date, so let's use it :
1201	*/	456	*/
1202	int screen = display->screen;	457	int screen = display->screen;
1203	int root_depth = DefaultDepth (dpy, screen);
1204	int root_width = DisplayWidth (dpy, screen);	458	int root_width = DisplayWidth (dpy, screen);
1205	int root_height = DisplayHeight (dpy, screen);	459	int root_height = DisplayHeight (dpy, screen);
1206	unsigned int root_pmap_width, root_pmap_height;
1207	int window_width = szHint.width;	460	int parent_width = szHint.width;
1208	int window_height = szHint.height;	461	int parent_height = szHint.height;
1209	int sx, sy;	462	int sx, sy;
1210	XGCValues gcv;
1211	GC gc;
1212		463
1213	sx = target_x;	464	sx = parent_x;
1214	sy = target_y;	465	sy = parent_y;
		466
		467	if (!root_img)
		468	return false;
1215		469
1216	/* check if we are outside of the visible part of the virtual screen : */	470	/* check if we are outside of the visible part of the virtual screen : */
1217	if (sx + window_width <= 0 || sy + window_height <= 0	471	if (sx + parent_width <= 0 || sy + parent_height <= 0
1218	|| sx >= root_width || sy >= root_height)	472	|| sx >= root_width || sy >= root_height)
1219	return 0;	473	return 0;
1220		474
1221	// validate root pixmap and get its size	475	while (sx < 0) sx += root_img->w;
1222	if (root_pixmap != None)	476	while (sy < 0) sy += root_img->h;
1223	{
1224	Window wdummy;
1225	int idummy;
1226	unsigned int udummy;
1227		477
1228	allowedxerror = -1;	478	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1229		479
1230	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	480	if (root_effects.need_blur ())
1231	root_pixmap = None;	481	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1232		482
1233	allowedxerror = 0;	483	if (root_effects.need_tint ())
1234	}	484	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1235		485
1236	Pixmap recoded_root_pmap = root_pixmap;
1237
1238	if (root_pixmap != None && root_depth != depth)
1239	{
1240	#if XRENDER
1241	if (bg_flags & BG_HAS_RENDER)
1242	{
1243	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1244
1245	XRenderPictureAttributes pa;
1246
1247	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1248	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1249
1250	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	486	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1251	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	487	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1252		488
1253	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	489	delete bg_img;
		490	bg_img = img;
1254		491
1255	XRenderFreePicture (dpy, src);
1256	XRenderFreePicture (dpy, dst);
1257	}
1258	else
1259	#endif
1260	recoded_root_pmap = None;
1261	}
1262
1263	if (recoded_root_pmap == None)
1264	return 0;
1265
1266	if (bg_pixmap == None
1267	|| bg_pmap_width != window_width
1268	|| bg_pmap_height != window_height)
1269	{
1270	if (bg_pixmap)
1271	XFreePixmap (dpy, bg_pixmap);
1272	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1273	bg_pmap_width = window_width;
1274	bg_pmap_height = window_height;
1275	}
1276
1277	/* straightforward pixmap copy */
1278	while (sx < 0) sx += root_width;
1279	while (sy < 0) sy += root_height;
1280
1281	gcv.tile = recoded_root_pmap;
1282	gcv.fill_style = FillTiled;
1283	gcv.ts_x_origin = -sx;
1284	gcv.ts_y_origin = -sy;
1285	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1286
1287	if (gc)
1288	{
1289	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1290	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1291	XFreeGC (dpy, gc);
1292
1293	if (!(bg_flags & BG_CLIENT_RENDER))
1294	{
1295	if ((bg_flags & BG_NEEDS_BLUR)
1296	&& (bg_flags & BG_HAS_RENDER_CONV))
1297	{
1298	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1299	result &= ~BG_NEEDS_BLUR;
1300	}
1301	if ((bg_flags & BG_NEEDS_TINT)
1302	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1303	{
1304	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1305	result &= ~BG_NEEDS_TINT;
1306	}
1307	} /* server side rendering completed */
1308	}
1309
1310	if (recoded_root_pmap != root_pixmap)
1311	XFreePixmap (dpy, recoded_root_pmap);
1312
1313	return result;	492	return true;
1314	}	493	}
1315		494
1316	void	495	void
1317	rxvt_term::bg_set_root_pixmap ()	496	rxvt_term::bg_set_root_pixmap ()
1318	{	497	{
1319	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	498	delete root_img;
1320	if (new_root_pixmap == None)	499	root_img = rxvt_img::new_from_root (this);
1321	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1322
1323	root_pixmap = new_root_pixmap;
1324	}	500	}
1325	# endif /* ENABLE_TRANSPARENCY */	501	# endif /* ENABLE_TRANSPARENCY */
1326		502
1327	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	503	void
1328	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1329	# endif
1330
1331	bool
1332	rxvt_term::bg_render ()	504	rxvt_term::bg_render ()
1333	{	505	{
1334	unsigned long tr_flags = 0;	506	if (bg_flags & BG_INHIBIT_RENDER)
		507	return;
1335		508
1336	bg_invalidate ();	509	bg_invalidate ();
1337	# ifdef ENABLE_TRANSPARENCY	510	# if ENABLE_TRANSPARENCY
1338	if (bg_flags & BG_IS_TRANSPARENT)	511	if (bg_flags & BG_IS_TRANSPARENT)
1339	{	512	{
1340	/* we need to re-generate transparency pixmap in that case ! */	513	/* we need to re-generate transparency pixmap in that case ! */
1341	tr_flags = make_transparency_pixmap ();	514	if (render_root_image ())
1342	if (tr_flags == 0)
1343	return false;
1344	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1345	bg_flags |= BG_IS_VALID;	515	bg_flags |= BG_IS_VALID;
1346	}	516	}
1347	# endif	517	# endif
1348		518
1349	# ifdef BG_IMAGE_FROM_FILE	519	# if BG_IMAGE_FROM_FILE
1350	if ((bg_flags & BG_IS_FROM_FILE)	520	if (fimage.img)
1351	|| (tr_flags & BG_EFFECTS_FLAGS))
1352	{	521	{
1353	if (render_image (tr_flags))	522	if (render_image (fimage))
1354	bg_flags |= BG_IS_VALID;	523	bg_flags |= BG_IS_VALID;
1355	}	524	}
1356	# endif	525	# endif
1357		526
1358	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1359	XImage *result = NULL;
1360
1361	if (tr_flags && !(bg_flags & BG_IS_VALID))
1362	{
1363	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1364	}
1365
1366	if (result)
1367	{
1368	/* our own client-side tinting */
1369	if (tr_flags & BG_NEEDS_TINT)
1370	{
1371	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1372	if (bg_flags & BG_TINT_SET)
1373	tint.get (c);
1374	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1375	}
1376
1377	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1378
1379	if (gc)
1380	{
1381	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1382
1383	XFreeGC (dpy, gc);
1384	bg_flags |= BG_IS_VALID;
1385	}
1386
1387	XDestroyImage (result);
1388	}
1389	# endif
1390
1391	if (!(bg_flags & BG_IS_VALID))	527	if (!(bg_flags & BG_IS_VALID))
1392	{	528	{
1393	if (bg_pixmap != None)	529	delete bg_img;
1394	{	530	bg_img = 0;
1395	XFreePixmap (dpy, bg_pixmap);
1396	bg_pixmap = None;
1397	}
1398	}	531	}
1399		532
1400	scr_recolour (false);	533	scr_recolour (false);
1401	bg_flags |= BG_NEEDS_REFRESH;	534	bg_flags |= BG_NEEDS_REFRESH;
1402		535
1403	bg_valid_since = ev::now ();	536	bg_valid_since = ev::now ();
1404
1405	return true;
1406	}	537	}
1407		538
1408	void	539	void
1409	rxvt_term::bg_init ()	540	rxvt_term::bg_init ()
1410	{	541	{
1411	#ifdef ENABLE_TRANSPARENCY	542	#if BG_IMAGE_FROM_FILE
1412	shade = 100;	543	if (rs[Rs_backgroundPixmap])
		544	{
		545	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
		546	if (!bg_window_position_sensitive ())
		547	update_background ();
		548	}
1413	#endif	549	#endif
		550	}
1414		551
1415	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	552	void
1416	#if XRENDER	553	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1417	int major, minor;	554	{
1418	if (XRenderQueryVersion (dpy, &major, &minor))	555	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1419	bg_flags |= BG_HAS_RENDER;
1420	XFilters *filters = XRenderQueryFilters (dpy, vt);
1421	if (filters)
1422	{
1423	for (int i = 0; i < filters->nfilter; i++)
1424	if (!strcmp (filters->filter[i], FilterConvolution))
1425	bg_flags |= BG_HAS_RENDER_CONV;
1426		556
1427	XFree (filters);	557	if (tint_set)
		558	tint.get (c);
		559
		560	if (shade > 100)
1428	}	561	{
1429	#endif	562	c.r = c.r * (200 - shade) / 100;
		563	c.g = c.g * (200 - shade) / 100;
		564	c.b = c.b * (200 - shade) / 100;
		565	}
		566	else
		567	{
		568	c.r = c.r * shade / 100;
		569	c.g = c.g * shade / 100;
		570	c.b = c.b * shade / 100;
		571	}
		572
		573	img->contrast (c.r, c.g, c.b, c.a);
		574
		575	if (shade > 100)
		576	{
		577	c.a = 0xffff;
		578	c.r =
		579	c.g =
		580	c.b = 0xffff * (shade - 100) / 100;
		581	img->brightness (c.r, c.g, c.b, c.a);
		582	}
1430	}	583	}
1431		584
1432	#endif /* HAVE_BG_PIXMAP */	585	#endif /* HAVE_BG_PIXMAP */
1433
1434	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1435	/* taken from aterm-0.4.2 */
1436
1437	static void
1438	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1439	{
1440	int sh_r, sh_g, sh_b;
1441	uint32_t mask_r, mask_g, mask_b;
1442	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1443	rgba low;
1444	rgba high;
1445	int i;
1446	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1447
1448	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1449
1450	/* for convenience */
1451	mask_r = visual->red_mask;
1452	mask_g = visual->green_mask;
1453	mask_b = visual->blue_mask;
1454
1455	/* boring lookup table pre-initialization */
1456	switch (ximage->depth)
1457	{
1458	case 15:
1459	if ((mask_r != 0x7c00) ||
1460	(mask_g != 0x03e0) ||
1461	(mask_b != 0x001f))
1462	return;
1463	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1464	lookup_r = lookup;
1465	lookup_g = lookup+32;
1466	lookup_b = lookup+32+32;
1467	sh_r = 10;
1468	sh_g = 5;
1469	sh_b = 0;
1470	break;
1471	case 16:
1472	if ((mask_r != 0xf800) ||
1473	(mask_g != 0x07e0) ||
1474	(mask_b != 0x001f))
1475	return;
1476	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1477	lookup_r = lookup;
1478	lookup_g = lookup+32;
1479	lookup_b = lookup+32+64;
1480	sh_r = 11;
1481	sh_g = 5;
1482	sh_b = 0;
1483	break;
1484	case 24:
1485	if ((mask_r != 0xff0000) ||
1486	(mask_g != 0x00ff00) ||
1487	(mask_b != 0x0000ff))
1488	return;
1489	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1490	lookup_r = lookup;
1491	lookup_g = lookup+256;
1492	lookup_b = lookup+256+256;
1493	sh_r = 16;
1494	sh_g = 8;
1495	sh_b = 0;
1496	break;
1497	case 32:
1498	if ((mask_r != 0xff0000) ||
1499	(mask_g != 0x00ff00) ||
1500	(mask_b != 0x0000ff))
1501	return;
1502	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1503	lookup_r = lookup;
1504	lookup_g = lookup+256;
1505	lookup_b = lookup+256+256;
1506	sh_r = 16;
1507	sh_g = 8;
1508	sh_b = 0;
1509	break;
1510	default:
1511	return; /* we do not support this color depth */
1512	}
1513
1514	/* prepare limits for color transformation (each channel is handled separately) */
1515	if (shade > 100)
1516	{
1517	shade = 200 - shade;
1518
1519	high.r = c.r * shade / 100;
1520	high.g = c.g * shade / 100;
1521	high.b = c.b * shade / 100;
1522
1523	low.r = 65535 * (100 - shade) / 100;
1524	low.g = 65535 * (100 - shade) / 100;
1525	low.b = 65535 * (100 - shade) / 100;
1526	}
1527	else
1528	{
1529	high.r = c.r * shade / 100;
1530	high.g = c.g * shade / 100;
1531	high.b = c.b * shade / 100;
1532
1533	low.r = low.g = low.b = 0;
1534	}
1535
1536	/* fill our lookup tables */
1537	for (i = 0; i <= mask_r>>sh_r; i++)
1538	{
1539	uint32_t tmp;
1540	tmp = i * high.r;
1541	tmp += (mask_r>>sh_r) * low.r;
1542	lookup_r[i] = (tmp/65535)<<sh_r;
1543	}
1544	for (i = 0; i <= mask_g>>sh_g; i++)
1545	{
1546	uint32_t tmp;
1547	tmp = i * high.g;
1548	tmp += (mask_g>>sh_g) * low.g;
1549	lookup_g[i] = (tmp/65535)<<sh_g;
1550	}
1551	for (i = 0; i <= mask_b>>sh_b; i++)
1552	{
1553	uint32_t tmp;
1554	tmp = i * high.b;
1555	tmp += (mask_b>>sh_b) * low.b;
1556	lookup_b[i] = (tmp/65535)<<sh_b;
1557	}
1558
1559	/* apply table to input image (replacing colors by newly calculated ones) */
1560	if (ximage->bits_per_pixel == 32
1561	&& (ximage->depth == 24 || ximage->depth == 32)
1562	&& ximage->byte_order == host_byte_order)
1563	{
1564	uint32_t *p1, *pf, *p, *pl;
1565	p1 = (uint32_t *) ximage->data;
1566	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1567
1568	while (p1 < pf)
1569	{
1570	p = p1;
1571	pl = p1 + ximage->width;
1572	for (; p < pl; p++)
1573	{
1574	*p = lookup_r[(*p & 0xff0000) >> 16] |
1575	lookup_g[(*p & 0x00ff00) >> 8] |
1576	lookup_b[(*p & 0x0000ff)] |
1577	(*p & 0xff000000);
1578	}
1579	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1580	}
1581	}
1582	else
1583	{
1584	for (int y = 0; y < ximage->height; y++)
1585	for (int x = 0; x < ximage->width; x++)
1586	{
1587	unsigned long pixel = XGetPixel (ximage, x, y);
1588	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1589	lookup_g[(pixel & mask_g) >> sh_g] |
1590	lookup_b[(pixel & mask_b) >> sh_b];
1591	XPutPixel (ximage, x, y, pixel);
1592	}
1593	}
1594
1595	free (lookup);
1596	}
1597	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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