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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.151 by sf-exg, Sun May 8 21:02:28 2011 UTC vs.
Revision 1.257 by sf-exg, Sat Jan 19 10:04:34 2013 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <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 BG_IMAGE_FROM_ROOT
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
81	if (bg_pixmap)
82	XFreePixmap (dpy, bg_pixmap);
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	}	41	}
98		42
99	bool	43	bool
100	rxvt_term::bg_window_size_sensitive ()	44	rxvt_term::bg_window_size_sensitive ()
101	{	45	{
102	# ifdef ENABLE_TRANSPARENCY	46	# if BG_IMAGE_FROM_ROOT
103	if (bg_flags & BG_IS_TRANSPARENT)	47	if (root_img)
104	return true;	48	return true;
105	# endif	49	# endif
106		50
107	# ifdef BG_IMAGE_FROM_FILE	51	# if BG_IMAGE_FROM_FILE
108	if (bg_flags & BG_IS_FROM_FILE)	52	if (fimage.img)
109	{	53	{
110	if (bg_flags & BG_IS_SIZE_SENSITIVE)	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
111	return true;	57	return true;
112	}	58	}
113	# endif	59	# endif
114		60
115	return false;	61	return false;
116	}	62	}
117		63
118	bool	64	bool
119	rxvt_term::bg_window_position_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
120	{	66	{
121	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
122	if (bg_flags & BG_IS_TRANSPARENT)	68	if (root_img)
123	return true;	69	return true;
124	# endif	70	# endif
125		71
126	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
127	if (bg_flags & BG_IS_FROM_FILE)	73	if (fimage.img)
128	{	74	{
129	if (bg_flags & BG_ROOT_ALIGN)	75	if (fimage.flags & IM_ROOT_ALIGN)
130	return true;	76	return true;
131	}	77	}
132	# endif	78	# endif
133		79
134	return false;	80	return false;
135	}	81	}
136		82
137	# ifdef BG_IMAGE_FROM_FILE	83	# 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	84	static inline int
173	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
174	{	86	{
175	int diff = window_size - image_size;
176	int smaller = min (image_size, window_size);
177
178	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
179	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
180	else if (align > 100 && align <= 200)	89	else if (align > 100)
181	return ((align - 100) * smaller / 100) + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
182	else if (align >= -100 && align < 0)	91	else
183	return ((align + 100) * smaller / 100) - image_size;	92	return lerp (-image_size, 0, align + 100);
184	return 0;
185	}	93	}
186		94
187	static inline int	95	static void
188	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	96	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
189	{	97	{
190	int src_pos = 0;	98	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	}	99	{
199		100	flags = IM_TILE;
200	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
201	dst_size = target_size - dst_pos;	102	x = y = 0;
202	return src_pos;	103	}
		104	else if (!strcasecmp (style, "aspect-stretched"))
		105	{
		106	flags = IM_KEEP_ASPECT;
		107	w = h = windowScale;
		108	x = y = centerAlign;
		109	}
		110	else if (!strcasecmp (style, "stretched"))
		111	{
		112	flags = 0;
		113	w = h = windowScale;
		114	x = y = centerAlign;
		115	}
		116	else if (!strcasecmp (style, "centered"))
		117	{
		118	flags = 0;
		119	w = h = noScale;
		120	x = y = centerAlign;
		121	}
		122	else if (!strcasecmp (style, "root-tiled"))
		123	{
		124	flags = IM_TILE|IM_ROOT_ALIGN;
		125	w = h = noScale;
		126	x = y = 0;
		127	}
203	}	128	}
204		129
205	bool	130	bool
206	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
207	{	132	{
208	bool changed = false;	133	bool changed = false;
209	int geom_flags = 0;	134	int geom_flags = 0;
210	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
211	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
212	unsigned int n;	138	unsigned int h = v_scale;
213	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	139	uint8_t new_flags = 0;
214	const char *ops;
215		140
216	if (geom == NULL)	141	if (geom == NULL)
217	return false;	142	return false;
218		143
219	char str[256];	144	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	{	145	{
236	/* we have geometry string - let's handle it prior to applying ops */	146	char **arr = rxvt_strsplit (':', geom);
		147
		148	for (int i = 0; arr[i]; i++)
		149	{
		150	if (!strncasecmp (arr[i], "style=", 6))
		151	{
		152	parse_style (arr[i] + 6, x, y, w, h, new_flags);
		153	geom_flags = WidthValue|HeightValue|XValue|YValue;
		154	}
		155	else if (!strcasecmp (arr[i], "op=tile"))
		156	new_flags |= IM_TILE;
		157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
		158	new_flags |= IM_KEEP_ASPECT;
		159	else if (!strcasecmp (arr[i], "op=root-align"))
		160	new_flags |= IM_ROOT_ALIGN;
		161
		162	// deprecated
		163	else if (!strcasecmp (arr[i], "tile"))
		164	{
		165	new_flags |= IM_TILE;
		166	w = h = noScale;
		167	geom_flags |= WidthValue|HeightValue;
		168	}
		169	else if (!strcasecmp (arr[i], "propscale"))
		170	{
		171	new_flags |= IM_KEEP_ASPECT;
		172	w = h = windowScale;
		173	geom_flags |= WidthValue|HeightValue;
		174	}
		175	else if (!strcasecmp (arr[i], "hscale"))
		176	{
		177	new_flags |= IM_TILE;
		178	w = windowScale;
		179	h = noScale;
		180	geom_flags |= WidthValue|HeightValue;
		181	}
		182	else if (!strcasecmp (arr[i], "vscale"))
		183	{
		184	new_flags |= IM_TILE;
		185	h = windowScale;
		186	w = noScale;
		187	geom_flags |= WidthValue|HeightValue;
		188	}
		189	else if (!strcasecmp (arr[i], "scale"))
		190	{
		191	w = h = windowScale;
		192	geom_flags |= WidthValue|HeightValue;
		193	}
		194	else if (!strcasecmp (arr[i], "auto"))
		195	{
		196	w = h = windowScale;
		197	x = y = centerAlign;
		198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
		199	}
		200	else if (!strcasecmp (arr[i], "root"))
		201	{
		202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
		203	w = h = noScale;
		204	geom_flags |= WidthValue|HeightValue;
		205	}
		206
		207	else
237	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
238	} /* done parsing geometry string */	209	} /* done parsing ops */
		210
		211	rxvt_free_strsplit (arr);
		212	}
		213
		214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
239		215
240	if (!update)	216	if (!update)
241	{	217	{
242	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
243	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
248	w = h = defaultScale;	224	w = h = defaultScale;
249	else if (!(geom_flags & HeightValue))	225	else if (!(geom_flags & HeightValue))
250	h = w;	226	h = w;
251	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
252	w = h;	228	w = h;
253
254	geom_flags |= WidthValue|HeightValue|XValue|YValue;
255	}
256
257	if (ops)
258	{	229	}
259	char **arr = rxvt_strsplit (':', ops + 1);
260		230
261	for (int i = 0; arr[i]; i++)	231	clamp_it (x, -100, 200);
262	{	232	clamp_it (y, -100, 200);
263	if (!strcasecmp (arr[i], "tile"))
264	{
265	w = h = noScale;
266	geom_flags |= WidthValue|HeightValue;
267	}
268	else if (!strcasecmp (arr[i], "propscale"))
269	{
270	new_flags |= BG_PROP_SCALE;
271	}
272	else if (!strcasecmp (arr[i], "hscale"))
273	{
274	if (w == 0) w = windowScale;
275		233
276	h = noScale;	234	if (flags != new_flags
277	geom_flags |= WidthValue|HeightValue;	235	|| h_scale != w
278	}	236	|| v_scale != h
279	else if (!strcasecmp (arr[i], "vscale"))	237	|| h_align != x
280	{	238	|| v_align != y)
281	if (h == 0) h = windowScale;
282
283	w = noScale;
284	geom_flags |= WidthValue|HeightValue;
285	}
286	else if (!strcasecmp (arr[i], "scale"))
287	{
288	if (h == 0) h = windowScale;
289	if (w == 0) w = windowScale;
290
291	geom_flags |= WidthValue|HeightValue;
292	}
293	else if (!strcasecmp (arr[i], "auto"))
294	{
295	w = h = windowScale;
296	x = y = centerAlign;
297	geom_flags |= WidthValue|HeightValue|XValue|YValue;
298	}
299	else if (!strcasecmp (arr[i], "root"))
300	{
301	new_flags |= BG_ROOT_ALIGN;
302	w = h = noScale;
303	geom_flags |= WidthValue|HeightValue;
304	}
305	} /* done parsing ops */
306
307	rxvt_free_strsplit (arr);
308	}	239	{
309
310	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
311	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
312	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
313	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
314
315	if (new_flags != bg_flags)
316	{
317	bg_flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
318	changed = true;	245	changed = true;
319	}	246	}
320		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
321	return changed;	253	return changed;
322	}	254	}
323		255
324	void	256	void
325	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	257	rxvt_term::render_image (rxvt_image &image)
326	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
327	int target_width = szHint.width;	261	int parent_width = szHint.width;
328	int target_height = szHint.height;	262	int parent_height = szHint.height;
		263	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		264	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
329		265
330	if (bg_flags & BG_PROP_SCALE)	266	int w;
		267	int h;
		268	int x;
		269	int y;
		270
		271	w = h_scale * parent_width / 100;
		272	h = v_scale * parent_height / 100;
		273
		274	if (image.flags & IM_KEEP_ASPECT)
331	{	275	{
332	float scale = (float)target_width / image_width;	276	float scale = (float)w / image_width;
333	min_it (scale, (float)target_height / image_height);	277	min_it (scale, (float)h / image_height);
334	w = image_width * scale + 0.5;	278	w = image_width * scale + 0.5;
335	h = image_height * scale + 0.5;	279	h = image_height * scale + 0.5;
336	}	280	}
337	else
338	{
339	w = h_scale * target_width / 100;
340	h = v_scale * target_height / 100;
341	}
342		281
343	if (!w) w = image_width;	282	if (!w) w = image_width;
344	if (!h) h = image_height;	283	if (!h) h = image_height;
345		284
346	if (bg_flags & BG_ROOT_ALIGN)	285	if (image.flags & IM_ROOT_ALIGN)
347	{	286	{
348	x = -target_x;	287	x = -parent_x;
349	y = -target_y;	288	y = -parent_y;
350	}	289	}
351	else	290	else
352	{	291	{
353	x = make_align_position (h_align, target_width, w);	292	x = make_align_position (image.h_align, parent_width, w);
354	y = make_align_position (v_align, target_height, h);	293	y = make_align_position (image.v_align, parent_height, h);
355	}
356
357	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
358	if ((bg_flags & BG_PROP_SCALE) || h_scale || v_scale
359	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
360	|| w > target_width || h > target_height)
361	bg_flags |= BG_IS_SIZE_SENSITIVE;
362	}
363
364	# ifdef HAVE_AFTERIMAGE
365	bool
366	rxvt_term::render_image (unsigned long tr_flags)
367	{
368	init_asv ();
369
370	ASImage *background = NULL;
371	ARGB32 background_tint = TINT_LEAVE_SAME;
372
373	# ifdef ENABLE_TRANSPARENCY
374	if (tr_flags)
375	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
376
377	if (tr_flags & BG_NEEDS_TINT)
378	{	294	}
379	ShadingInfo as_shade;
380	as_shade.shading = shade;
381		295
382	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	296	if (!(image.flags & IM_ROOT_ALIGN)
383	if (bg_flags & BG_TINT_SET)
384	tint.get (c);
385	as_shade.tintColor.red = c.r;
386	as_shade.tintColor.green = c.g;
387	as_shade.tintColor.blue = c.b;
388
389	background_tint = shading2tint32 (&as_shade);
390	}
391
392	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
393	{
394	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
395	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
396	100, ASIMAGE_QUALITY_DEFAULT);
397	if (tmp)
398	{
399	destroy_asimage (&background);
400	background = tmp;
401	}
402	}
403	# endif
404
405	ASImage *result = 0;
406
407	int target_width = szHint.width;
408	int target_height = szHint.height;
409	int new_pmap_width = target_width;
410	int new_pmap_height = target_height;
411
412	int x = 0;
413	int y = 0;
414	int w = 0;
415	int h = 0;
416
417	if (original_asim)
418	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
419
420	if (!original_asim
421	|| (!(bg_flags & BG_ROOT_ALIGN)
422	&& (x >= target_width	297	&& (x >= parent_width
423	|| y >= target_height	298	|| y >= parent_height
424	|| (x + w <= 0)	299	|| x + w <= 0
425	|| (y + h <= 0))))	300	|| y + h <= 0))
426	{	301	return;
427	if (background)
428	{
429	new_pmap_width = background->width;
430	new_pmap_height = background->height;
431	result = background;
432		302
433	if (background_tint != TINT_LEAVE_SAME)	303	rxvt_img *img = image.img->scale (w, h);
434	{	304
435	ASImage *tmp = tile_asimage (asv, background, 0, 0,	305	if (image.flags & IM_TILE)
436	target_width, target_height, background_tint,	306	img->repeat_mode (RepeatNormal);
437	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
438	if (tmp)
439	result = tmp;
440	}
441	}
442	else
443	new_pmap_width = new_pmap_height = 0;
444	}
445	else	307	else
446	{	308	img->repeat_mode (RepeatNone);
447	result = original_asim;	309	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
448		310
449	if ((w != original_asim->width)	311	if (bg_img)
450	|| (h != original_asim->height))	312	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
451	{
452	result = scale_asimage (asv, original_asim,
453	w, h,
454	background ? ASA_ASImage : ASA_XImage,
455	100, ASIMAGE_QUALITY_DEFAULT);
456	}
457		313
458	if (background == NULL)
459	{
460	if (h_scale == 0 || v_scale == 0)
461	{
462	/* if tiling - pixmap has to be sized exactly as the image,
463	but there is no need to make it bigger than the window! */
464	new_pmap_width = min (result->width, target_width);
465	new_pmap_height = min (result->height, target_height);
466
467	/* we also need to tile our image in both directions */
468	ASImage *tmp = tile_asimage (asv, result,
469	(int)result->width - x,
470	(int)result->height - y,
471	new_pmap_width,
472	new_pmap_height,
473	TINT_LEAVE_SAME, ASA_XImage,
474	100, ASIMAGE_QUALITY_DEFAULT);
475	if (tmp)
476	{
477	if (result != original_asim)
478	destroy_asimage (&result);
479
480	result = tmp;
481	}
482	}
483	}
484	else
485	{
486	/* if blending background and image - pixmap has to be sized same as target window */
487	ASImageLayer *layers = create_image_layers (2);
488
489	layers[0].im = background;
490	layers[0].clip_width = target_width;
491	layers[0].clip_height = target_height;
492	layers[0].tint = background_tint;
493	layers[1].im = result;
494
495	if (h_scale == 0 || v_scale == 0)
496	{
497	/* tile horizontally */
498	while (x > 0) x -= (int)result->width;
499	layers[1].dst_x = x;
500	layers[1].clip_width = result->width+target_width;
501	}
502	else
503	{
504	/* clip horizontally */
505	layers[1].dst_x = x;
506	layers[1].clip_width = result->width;
507	}
508
509	if (h_scale == 0 || v_scale == 0)
510	{
511	while (y > 0) y -= (int)result->height;
512	layers[1].dst_y = y;
513	layers[1].clip_height = result->height + target_height;
514	}
515	else
516	{
517	layers[1].dst_y = y;
518	layers[1].clip_height = result->height;
519	}
520
521	if (rs[Rs_blendtype])
522	{
523	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
524	if (layers[1].merge_scanlines == NULL)
525	layers[1].merge_scanlines = alphablend_scanlines;
526	}
527
528	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
529	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
530
531	if (tmp)
532	{
533	if (result != original_asim)
534	destroy_asimage (&result);
535
536	result = tmp;
537	}
538
539	free (layers);
540	}
541	}
542
543	bool ret = false;
544
545	if (result)
546	{
547	XGCValues gcv;
548	GC gc;
549
550	/* create Pixmap */
551	if (bg_pixmap == None
552	|| bg_pmap_width != new_pmap_width
553	|| bg_pmap_height != new_pmap_height)
554	{
555	if (bg_pixmap)
556	XFreePixmap (dpy, bg_pixmap);
557	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
558	bg_pmap_width = new_pmap_width;
559	bg_pmap_height = new_pmap_height;
560	}
561	/* fill with background color (if result's not completely overlapping it) */
562	gcv.foreground = pix_colors[Color_bg];
563	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
564
565	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
566	int dst_width = result->width, dst_height = result->height;
567	if (background == NULL)
568	{
569	if (!(h_scale == 0 || v_scale == 0))
570	{
571	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
572	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
573	}
574
575	if (dst_x > 0 || dst_y > 0
576	|| dst_x + dst_width < new_pmap_width
577	|| dst_y + dst_height < new_pmap_height)
578	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
579	}
580
581	/* put result on pixmap */
582	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
583	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
584
585	if (result != background && result != original_asim)
586	destroy_asimage (&result);
587
588	XFreeGC (dpy, gc);
589
590	ret = true;
591	}
592
593	if (background)
594	destroy_asimage (&background);
595
596	return ret;
597	}
598	# endif /* HAVE_AFTERIMAGE */
599
600	# ifdef HAVE_PIXBUF
601	bool
602	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
603	int src_x, int src_y, int dst_x, int dst_y,
604	unsigned int width, unsigned int height)
605	{
606	XImage *ximage;
607	char *data, *line;
608	int bytes_per_pixel;
609	int width_r, width_g, width_b;
610	int sh_r, sh_g, sh_b;
611	int rowstride;
612	int channels;
613	unsigned char *row;
614
615	if (visual->c_class != TrueColor)
616	return false;
617
618	if (depth == 24 || depth == 32)
619	bytes_per_pixel = 4;
620	else if (depth == 15 || depth == 16)
621	bytes_per_pixel = 2;
622	else
623	return false;
624
625	width_r = rxvt_popcount (visual->red_mask);
626	width_g = rxvt_popcount (visual->green_mask);
627	width_b = rxvt_popcount (visual->blue_mask);
628
629	if (width_r > 8 || width_g > 8 || width_b > 8)
630	return false;
631
632	sh_r = rxvt_ctz (visual->red_mask);
633	sh_g = rxvt_ctz (visual->green_mask);
634	sh_b = rxvt_ctz (visual->blue_mask);
635
636	if (width > INT_MAX / height / bytes_per_pixel)
637	return false;
638
639	data = (char *)malloc (width * height * bytes_per_pixel);
640	if (!data)
641	return false;
642
643	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
644	width, height, bytes_per_pixel * 8, 0);
645	if (!ximage)
646	{
647	free (data);
648	return false;
649	}
650
651	ximage->byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
652
653	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
654	channels = gdk_pixbuf_get_n_channels (pixbuf);
655	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
656	line = data;
657
658	for (int y = 0; y < height; y++)
659	{
660	for (int x = 0; x < width; x++)
661	{
662	unsigned char *pixel = row + x * channels;
663	uint32_t value;
664
665	value = ((pixel[0] >> (8 - width_r)) << sh_r)
666	| ((pixel[1] >> (8 - width_g)) << sh_g)
667	| ((pixel[2] >> (8 - width_b)) << sh_b);
668
669	if (bytes_per_pixel == 4)
670	((uint32_t *)line)[x] = value;
671	else
672	((uint16_t *)line)[x] = value;
673	}
674
675	row += rowstride;
676	line += ximage->bytes_per_line;
677	}
678
679	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
680	XDestroyImage (ximage);
681	return true;
682	}
683
684	bool
685	rxvt_term::render_image (unsigned long tr_flags)
686	{
687	if (!pixbuf)
688	return false;
689
690	if (tr_flags
691	&& !(bg_flags & BG_HAS_RENDER))
692	return false;
693
694	GdkPixbuf *result;
695
696	int image_width = gdk_pixbuf_get_width (pixbuf);
697	int image_height = gdk_pixbuf_get_height (pixbuf);
698
699	int target_width = szHint.width;
700	int target_height = szHint.height;
701	int new_pmap_width = target_width;
702	int new_pmap_height = target_height;
703
704	int x = 0;
705	int y = 0;
706	int w = 0;
707	int h = 0;
708
709	get_image_geometry (image_width, image_height, w, h, x, y);
710
711	if (!(bg_flags & BG_ROOT_ALIGN)
712	&& (x >= target_width
713	|| y >= target_height
714	|| (x + w <= 0)
715	|| (y + h <= 0)))
716	return false;
717
718	result = pixbuf;
719
720	if ((w != image_width)
721	|| (h != image_height))
722	{
723	result = gdk_pixbuf_scale_simple (pixbuf,
724	w, h,
725	GDK_INTERP_BILINEAR);
726	}
727
728	if (!result)
729	return false;
730
731	bool ret = false;
732
733	XGCValues gcv;
734	GC gc;
735	Pixmap root_pmap;
736
737	image_width = gdk_pixbuf_get_width (result);
738	image_height = gdk_pixbuf_get_height (result);
739
740	if (tr_flags)
741	{
742	root_pmap = bg_pixmap;
743	bg_pixmap = None;
744	}
745	else
746	{
747	if (h_scale == 0 || v_scale == 0)
748	{
749	new_pmap_width = min (image_width, target_width);
750	new_pmap_height = min (image_height, target_height);
751	}
752	}
753
754	if (bg_pixmap == None
755	|| bg_pmap_width != new_pmap_width
756	|| bg_pmap_height != new_pmap_height)
757	{
758	if (bg_pixmap)
759	XFreePixmap (dpy, bg_pixmap);
760	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
761	bg_pmap_width = new_pmap_width;
762	bg_pmap_height = new_pmap_height;
763	}
764
765	gcv.foreground = pix_colors[Color_bg];
766	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
767
768	if (h_scale == 0 || v_scale == 0)
769	{
770	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
771	pixbuf_to_pixmap (result, tile, gc,
772	0, 0,
773	0, 0,
774	image_width, image_height);
775
776	gcv.tile = tile;
777	gcv.fill_style = FillTiled;
778	gcv.ts_x_origin = x;
779	gcv.ts_y_origin = y;
780	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
781
782	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
783	XFreePixmap (dpy, tile);
784	}
785	else
786	{
787	int src_x, src_y, dst_x, dst_y;
788	int dst_width, dst_height;
789
790	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
791	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
792
793	if (dst_x > 0 || dst_y > 0
794	|| dst_x + dst_width < new_pmap_width
795	|| dst_y + dst_height < new_pmap_height)
796	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
797
798	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
799	pixbuf_to_pixmap (result, bg_pixmap, gc,
800	src_x, src_y,
801	dst_x, dst_y,
802	dst_width, dst_height);
803	}
804
805	#if XRENDER
806	if (tr_flags)
807	{
808	XRenderPictureAttributes pa;
809
810	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	314	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
811	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	315	img->convert_format (format, pix_colors [Color_bg])->replace (img);
812		316
813	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	317	delete bg_img;
814	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	318	bg_img = img;
815
816	pa.repeat = True;
817	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
818	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
819	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
820	XFreePixmap (dpy, mask_pmap);
821
822	if (src && dst && mask)
823	{
824	XRenderColor mask_c;
825
826	mask_c.alpha = 0x8000;
827	mask_c.red = 0;
828	mask_c.green = 0;
829	mask_c.blue = 0;
830	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
831	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
832	}
833
834	XRenderFreePicture (dpy, src);
835	XRenderFreePicture (dpy, dst);
836	XRenderFreePicture (dpy, mask);
837
838	XFreePixmap (dpy, root_pmap);
839	}
840	#endif
841
842	if (result != pixbuf)
843	g_object_unref (result);
844
845	XFreeGC (dpy, gc);
846
847	ret = true;
848
849	return ret;
850	}	319	}
851	# endif /* HAVE_PIXBUF */
852		320
853	bool	321	rxvt_image::rxvt_image ()
854	rxvt_term::bg_set_file (const char *file)	322	{
		323	alpha = 0xffff;
		324	flags = 0;
		325	h_scale =
		326	v_scale = defaultScale;
		327	h_align =
		328	v_align = defaultAlign;
		329
		330	img = 0;
		331	}
		332
		333	void
		334	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
855	{	335	{
856	if (!file || !*file)	336	if (!file || !*file)
857	return false;	337	return;
858		338
859	if (const char *p = strchr (file, ';'))	339	const char *p = strchr (file, ';');
		340
		341	if (p)
860	{	342	{
861	size_t len = p - file;	343	size_t len = p - file;
862	char *f = rxvt_temp_buf<char> (len + 1);	344	char *f = rxvt_temp_buf<char> (len + 1);
863	memcpy (f, file, len);	345	memcpy (f, file, len);
864	f[len] = '\0';	346	f[len] = '\0';
865	file = f;	347	file = f;
866	}	348	}
867		349
868	# ifdef HAVE_AFTERIMAGE	350	set_file (s, file);
869	if (!asimman)	351	alpha = 0x8000;
870	asimman = create_generic_imageman (rs[Rs_path]);	352	set_geometry (p ? p + 1 : "");
871	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	353	}
872	if (image)
873	{
874	if (original_asim)
875	safe_asimage_destroy (original_asim);
876	original_asim = image;
877	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
878	return true;
879	}
880	# endif
881		354
882	# ifdef HAVE_PIXBUF	355	void
883	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	356	rxvt_image::set_file (rxvt_screen *s, const char *file)
884	if (image)	357	{
885	{	358	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
886	if (pixbuf)	359	delete img;
887	g_object_unref (pixbuf);	360	img = img2;
888	pixbuf = image;
889	bg_flags |= BG_IS_FROM_FILE;
890	return true;
891	}
892	# endif
893
894	return false;
895	}	361	}
896		362
897	# endif /* BG_IMAGE_FROM_FILE */	363	# endif /* BG_IMAGE_FROM_FILE */
898		364
899	# ifdef ENABLE_TRANSPARENCY
900	bool	365	bool
901	rxvt_term::bg_set_transparent ()	366	image_effects::set_blur (const char *geom)
902	{
903	if (!(bg_flags & BG_IS_TRANSPARENT))
904	{
905	bg_flags |= BG_IS_TRANSPARENT;
906	return true;
907	}
908
909	return false;
910	}
911
912	bool
913	rxvt_term::bg_set_blur (const char *geom)
914	{	367	{
915	bool changed = false;	368	bool changed = false;
916	unsigned int hr, vr;	369	unsigned int hr, vr;
917	int junk;	370	int junk;
918	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	371	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
935	{	388	{
936	changed = true;	389	changed = true;
937	v_blurRadius = vr;	390	v_blurRadius = vr;
938	}	391	}
939		392
940	if (v_blurRadius == 0 && h_blurRadius == 0)
941	bg_flags &= ~BG_NEEDS_BLUR;
942	else
943	bg_flags |= BG_NEEDS_BLUR;
944
945	return changed;	393	return changed;
946	}	394	}
947		395
948	void
949	rxvt_term::set_tint_shade_flags ()
950	{
951	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
952	bool has_shade = shade != 100;
953
954	bg_flags &= ~BG_TINT_FLAGS;
955
956	if (bg_flags & BG_TINT_SET)
957	{
958	tint.get (c);
959	if (!has_shade
960	&& (c.r <= 0x00ff || c.r >= 0xff00)
961	&& (c.g <= 0x00ff || c.g >= 0xff00)
962	&& (c.b <= 0x00ff || c.b >= 0xff00))
963	bg_flags |= BG_TINT_BITAND;
964	}
965
966	if (has_shade || (bg_flags & BG_TINT_SET))
967	bg_flags |= BG_NEEDS_TINT;
968	}
969
970	bool	396	bool
971	rxvt_term::bg_set_tint (rxvt_color &new_tint)	397	image_effects::set_tint (const rxvt_color &new_tint)
972	{	398	{
973	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	399	if (!tint_set || tint != new_tint)
974	{	400	{
975	tint = new_tint;	401	tint = new_tint;
976	bg_flags |= BG_TINT_SET;	402	tint_set = true;
977	set_tint_shade_flags ();	403
978	return true;	404	return true;
979	}	405	}
980		406
981	return false;	407	return false;
982	}	408	}
983		409
984	bool	410	bool
985	rxvt_term::bg_set_shade (const char *shade_str)	411	image_effects::set_shade (const char *shade_str)
986	{	412	{
987	int new_shade = (shade_str) ? atoi (shade_str) : 100;	413	int new_shade = atoi (shade_str);
988		414
989	clamp_it (new_shade, -100, 200);	415	clamp_it (new_shade, -100, 200);
990	if (new_shade < 0)	416	if (new_shade < 0)
991	new_shade = 200 - (100 + new_shade);	417	new_shade = 200 - (100 + new_shade);
992		418
993	if (new_shade != shade)	419	if (new_shade != shade)
994	{	420	{
995	shade = new_shade;	421	shade = new_shade;
996	set_tint_shade_flags ();
997	return true;	422	return true;
998	}	423	}
999		424
1000	return false;	425	return false;
1001	}	426	}
1002		427
1003	#if XRENDER	428	# if BG_IMAGE_FROM_ROOT
1004	static void
1005	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1006	{
1007	double sigma = radius / 2.0;
1008	double scale = sqrt (2.0 * M_PI) * sigma;
1009	double sum = 0.0;
1010
1011	for (int i = 0; i < width; i++)
1012	{
1013	double x = i - width / 2;
1014	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1015	sum += kernel[i];
1016	}
1017
1018	params[0] = XDoubleToFixed (width);
1019	params[1] = XDoubleToFixed (1);
1020
1021	for (int i = 0; i < width; i++)
1022	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1023	}
1024	#endif
1025
1026	bool
1027	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1028	{
1029	bool ret = false;
1030	#if XRENDER
1031	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1032	double *kernel = (double *)malloc (size * sizeof (double));
1033	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1034
1035	XRenderPictureAttributes pa;
1036	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1037
1038	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1039	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1040
1041	if (kernel && params && src && dst)
1042	{
1043	if (h_blurRadius)
1044	{
1045	size = h_blurRadius * 2 + 1;
1046	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1047
1048	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1049	XRenderComposite (dpy,
1050	PictOpSrc,
1051	src,
1052	None,
1053	dst,
1054	0, 0,
1055	0, 0,
1056	0, 0,
1057	width, height);
1058	}
1059
1060	if (v_blurRadius)
1061	{
1062	size = v_blurRadius * 2 + 1;
1063	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1064	::swap (params[0], params[1]);
1065
1066	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1067	XRenderComposite (dpy,
1068	PictOpSrc,
1069	src,
1070	None,
1071	dst,
1072	0, 0,
1073	0, 0,
1074	0, 0,
1075	width, height);
1076	}
1077
1078	ret = true;
1079	}
1080
1081	free (kernel);
1082	free (params);
1083	XRenderFreePicture (dpy, src);
1084	XRenderFreePicture (dpy, dst);
1085	#endif
1086	return ret;
1087	}
1088
1089	bool
1090	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1091	{
1092	bool ret = false;
1093
1094	if (bg_flags & BG_TINT_BITAND)
1095	{
1096	XGCValues gcv;
1097	GC gc;
1098
1099	/* In this case we can tint image server-side getting significant
1100	* performance improvements, as we eliminate XImage transfer
1101	*/
1102	gcv.foreground = Pixel (tint);
1103	gcv.function = GXand;
1104	gcv.fill_style = FillSolid;
1105	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1106	if (gc)
1107	{
1108	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1109	ret = true;
1110	XFreeGC (dpy, gc);
1111	}
1112	}
1113	else
1114	{
1115	# if XRENDER
1116	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1117
1118	if (bg_flags & BG_TINT_SET)
1119	tint.get (c);
1120
1121	if (shade <= 100)
1122	{
1123	c.r = c.r * shade / 100;
1124	c.g = c.g * shade / 100;
1125	c.b = c.b * shade / 100;
1126	}
1127	else
1128	{
1129	c.r = c.r * (200 - shade) / 100;
1130	c.g = c.g * (200 - shade) / 100;
1131	c.b = c.b * (200 - shade) / 100;
1132	}
1133
1134	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1135	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1136	XRenderPictureAttributes pa;
1137
1138	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1139
1140	pa.repeat = True;
1141
1142	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1143	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1144	XFreePixmap (dpy, overlay_pmap);
1145
1146	pa.component_alpha = True;
1147	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1148	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1149	XFreePixmap (dpy, mask_pmap);
1150
1151	if (mask_pic && overlay_pic && back_pic)
1152	{
1153	XRenderColor mask_c;
1154
1155	mask_c.alpha = 0xffff;
1156	mask_c.red =
1157	mask_c.green =
1158	mask_c.blue = 0;
1159	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1160
1161	mask_c.alpha = 0;
1162	mask_c.red = 0xffff - c.r;
1163	mask_c.green = 0xffff - c.g;
1164	mask_c.blue = 0xffff - c.b;
1165	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1166	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1167
1168	if (shade > 100)
1169	{
1170	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1171	mask_c.alpha = 0;
1172	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1173
1174	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1175	}
1176
1177	ret = true;
1178	}
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	/*	429	/*
1190	* Builds a pixmap of the same size as the terminal window that contains	430	* 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	431	* the tiled portion of the root pixmap that is supposed to be covered by
1192	* our window.	432	* our window.
1193	*/	433	*/
1194	unsigned long	434	void
1195	rxvt_term::make_transparency_pixmap ()	435	rxvt_term::render_root_image ()
1196	{	436	{
1197	unsigned long result = 0;
1198
1199	/* root dimensions may change from call to call - but Display structure should	437	/* root dimensions may change from call to call - but Display structure should
1200	* be always up-to-date, so let's use it :	438	* be always up-to-date, so let's use it :
1201	*/	439	*/
1202	int screen = display->screen;	440	int screen = display->screen;
1203	int root_depth = DefaultDepth (dpy, screen);
1204	int root_width = DisplayWidth (dpy, screen);	441	int root_width = DisplayWidth (dpy, screen);
1205	int root_height = DisplayHeight (dpy, screen);	442	int root_height = DisplayHeight (dpy, screen);
1206	unsigned int root_pmap_width, root_pmap_height;
1207	int window_width = szHint.width;	443	int parent_width = szHint.width;
1208	int window_height = szHint.height;	444	int parent_height = szHint.height;
1209	int sx, sy;	445	int sx, sy;
1210	XGCValues gcv;
1211	GC gc;
1212		446
1213	sx = target_x;	447	sx = parent_x;
1214	sy = target_y;	448	sy = parent_y;
1215		449
1216	/* check if we are outside of the visible part of the virtual screen : */	450	/* check if we are outside of the visible part of the virtual screen : */
1217	if (sx + window_width <= 0 || sy + window_height <= 0	451	if (sx + parent_width <= 0 || sy + parent_height <= 0
1218	|| sx >= root_width || sy >= root_height)	452	|| sx >= root_width || sy >= root_height)
1219	return 0;	453	return;
1220		454
1221	// validate root pixmap and get its size	455	while (sx < 0) sx += root_img->w;
1222	if (root_pixmap != None)	456	while (sy < 0) sy += root_img->h;
1223	{
1224	Window wdummy;
1225	int idummy;
1226	unsigned int udummy;
1227		457
1228	allowedxerror = -1;	458	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1229		459
1230	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	460	if (root_effects.need_blur ())
1231	root_pixmap = None;	461	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1232		462
1233	allowedxerror = 0;	463	if (root_effects.need_tint ())
1234	}	464	{
		465	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1235		466
1236	Pixmap recoded_root_pmap = root_pixmap;	467	if (root_effects.tint_set)
1237		468	root_effects.tint.get (c);
1238	if (root_pixmap != None && root_depth != depth)	469	rxvt_img::nv factor = root_effects.shade / 100. - 1.;
		470	img->shade (factor, c)->replace (img);
1239	{	471	}
1240	#if XRENDER
1241	if (bg_flags & BG_HAS_RENDER)
1242	{
1243	XRenderPictureAttributes pa;
1244		472
1245	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1246	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1247
1248	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1249	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	473	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1250	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	474	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1251		475
1252	if (src && dst)	476	delete bg_img;
1253	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	477	bg_img = img;
1254	else
1255	{
1256	XFreePixmap (dpy, recoded_root_pmap);
1257	recoded_root_pmap = None;
1258	}
1259
1260	XRenderFreePicture (dpy, src);
1261	XRenderFreePicture (dpy, dst);
1262	}
1263	else
1264	#endif
1265	recoded_root_pmap = None;
1266	}
1267
1268	if (recoded_root_pmap == None)
1269	return 0;
1270
1271	if (bg_pixmap == None
1272	|| bg_pmap_width != window_width
1273	|| bg_pmap_height != window_height)
1274	{
1275	if (bg_pixmap)
1276	XFreePixmap (dpy, bg_pixmap);
1277	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1278	bg_pmap_width = window_width;
1279	bg_pmap_height = window_height;
1280	}
1281
1282	if (bg_pixmap != None)
1283	{
1284	/* straightforward pixmap copy */
1285	while (sx < 0) sx += (int)root_width;
1286	while (sy < 0) sy += (int)root_height;
1287
1288	gcv.tile = recoded_root_pmap;
1289	gcv.fill_style = FillTiled;
1290	gcv.ts_x_origin = -sx;
1291	gcv.ts_y_origin = -sy;
1292	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1293
1294	if (gc)
1295	{
1296	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1297	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1298	XFreeGC (dpy, gc);
1299
1300	if (!(bg_flags & BG_CLIENT_RENDER))
1301	{
1302	if ((bg_flags & BG_NEEDS_BLUR)
1303	&& (bg_flags & BG_HAS_RENDER_CONV))
1304	{
1305	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1306	result &= ~BG_NEEDS_BLUR;
1307	}
1308	if ((bg_flags & BG_NEEDS_TINT)
1309	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1310	{
1311	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1312	result &= ~BG_NEEDS_TINT;
1313	}
1314	} /* server side rendering completed */
1315	}
1316	}
1317
1318	if (recoded_root_pmap != root_pixmap)
1319	XFreePixmap (dpy, recoded_root_pmap);
1320
1321	return result;
1322	}	478	}
		479	# endif /* BG_IMAGE_FROM_ROOT */
1323		480
1324	void	481	void
1325	rxvt_term::bg_set_root_pixmap ()
1326	{
1327	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);
1328	if (new_root_pixmap == None)
1329	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1330
1331	root_pixmap = new_root_pixmap;
1332	}
1333	# endif /* ENABLE_TRANSPARENCY */
1334
1335	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1336	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1337	# endif
1338
1339	bool
1340	rxvt_term::bg_render ()	482	rxvt_term::bg_render ()
1341	{	483	{
1342	unsigned long tr_flags = 0;	484	if (bg_flags & BG_INHIBIT_RENDER)
		485	return;
1343		486
1344	bg_invalidate ();	487	delete bg_img;
1345	# ifdef ENABLE_TRANSPARENCY	488	bg_img = 0;
		489	bg_flags = 0;
		490
		491	if (!mapped)
		492	return;
		493
		494	# if BG_IMAGE_FROM_ROOT
		495	if (root_img)
		496	{
		497	render_root_image ();
1346	if (bg_flags & BG_IS_TRANSPARENT)	498	bg_flags |= BG_IS_TRANSPARENT;
1347	{	499	}
1348	/* we need to re-generate transparency pixmap in that case ! */
1349	tr_flags = make_transparency_pixmap ();
1350	if (tr_flags == 0)
1351	return false;
1352	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1353	bg_flags |= BG_IS_VALID;
1354	}
1355	# endif	500	# endif
1356		501
1357	# ifdef BG_IMAGE_FROM_FILE	502	# if BG_IMAGE_FROM_FILE
1358	if ((bg_flags & BG_IS_FROM_FILE)	503	if (fimage.img)
1359	|| (tr_flags & BG_EFFECTS_FLAGS))	504	render_image (fimage);
1360	{
1361	if (render_image (tr_flags))
1362	bg_flags |= BG_IS_VALID;
1363	}
1364	# endif	505	# endif
1365
1366	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1367	XImage *result = NULL;
1368
1369	if (tr_flags && !(bg_flags & BG_IS_VALID))
1370	{
1371	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1372	}
1373
1374	if (result)
1375	{
1376	/* our own client-side tinting */
1377	if (tr_flags & BG_NEEDS_TINT)
1378	{
1379	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1380	if (bg_flags & BG_TINT_SET)
1381	tint.get (c);
1382	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1383	}
1384
1385	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1386
1387	if (gc)
1388	{
1389	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1390
1391	XFreeGC (dpy, gc);
1392	bg_flags |= BG_IS_VALID;
1393	}
1394
1395	XDestroyImage (result);
1396	}
1397	# endif
1398
1399	if (!(bg_flags & BG_IS_VALID))
1400	{
1401	if (bg_pixmap != None)
1402	{
1403	XFreePixmap (dpy, bg_pixmap);
1404	bg_pixmap = None;
1405	}
1406	}
1407		506
1408	scr_recolour (false);	507	scr_recolour (false);
1409	bg_flags |= BG_NEEDS_REFRESH;	508	bg_flags |= BG_NEEDS_REFRESH;
1410		509
1411	bg_valid_since = ev::now ();	510	bg_valid_since = ev::now ();
1412
1413	return true;
1414	}	511	}
1415		512
1416	void	513	void
1417	rxvt_term::bg_init ()	514	rxvt_term::bg_init ()
1418	{	515	{
1419	#ifdef ENABLE_TRANSPARENCY	516	#if BG_IMAGE_FROM_ROOT
1420	shade = 100;	517	if (option (Opt_transparent))
		518	{
		519	if (rs [Rs_blurradius])
		520	root_effects.set_blur (rs [Rs_blurradius]);
		521
		522	if (ISSET_PIXCOLOR (Color_tint))
		523	root_effects.set_tint (pix_colors_focused [Color_tint]);
		524
		525	if (rs [Rs_shade])
		526	root_effects.set_shade (rs [Rs_shade]);
		527
		528	rxvt_img::new_from_root (this)->replace (root_img);
		529	XSelectInput (dpy, display->root, PropertyChangeMask);
		530	rootwin_ev.start (display, display->root);
		531	}
1421	#endif	532	#endif
1422		533
1423	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	534	#if BG_IMAGE_FROM_FILE
1424	#if XRENDER	535	if (rs[Rs_backgroundPixmap])
1425	int major, minor;
1426	if (XRenderQueryVersion (dpy, &major, &minor))
1427	bg_flags |= BG_HAS_RENDER;
1428	XFilters *filters = XRenderQueryFilters (dpy, vt);
1429	if (filters)
1430	{	536	{
1431	for (int i = 0; i < filters->nfilter; i++)	537	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1432	if (!strcmp (filters->filter[i], FilterConvolution))	538	if (!bg_window_position_sensitive ())
1433	bg_flags |= BG_HAS_RENDER_CONV;	539	update_background ();
1434
1435	XFree (filters);
1436	}	540	}
1437	#endif	541	#endif
1438	}	542	}
1439		543
1440	#endif /* HAVE_BG_PIXMAP */	544	#endif /* HAVE_BG_PIXMAP */
1441
1442	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1443	/* taken from aterm-0.4.2 */
1444
1445	static void
1446	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1447	{
1448	int sh_r, sh_g, sh_b;
1449	uint32_t mask_r, mask_g, mask_b;
1450	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1451	rgba low;
1452	rgba high;
1453	int i;
1454	int host_byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
1455
1456	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1457
1458	/* for convenience */
1459	mask_r = visual->red_mask;
1460	mask_g = visual->green_mask;
1461	mask_b = visual->blue_mask;
1462
1463	/* boring lookup table pre-initialization */
1464	switch (ximage->depth)
1465	{
1466	case 15:
1467	if ((mask_r != 0x7c00) ||
1468	(mask_g != 0x03e0) ||
1469	(mask_b != 0x001f))
1470	return;
1471	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1472	lookup_r = lookup;
1473	lookup_g = lookup+32;
1474	lookup_b = lookup+32+32;
1475	sh_r = 10;
1476	sh_g = 5;
1477	sh_b = 0;
1478	break;
1479	case 16:
1480	if ((mask_r != 0xf800) ||
1481	(mask_g != 0x07e0) ||
1482	(mask_b != 0x001f))
1483	return;
1484	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1485	lookup_r = lookup;
1486	lookup_g = lookup+32;
1487	lookup_b = lookup+32+64;
1488	sh_r = 11;
1489	sh_g = 5;
1490	sh_b = 0;
1491	break;
1492	case 24:
1493	if ((mask_r != 0xff0000) ||
1494	(mask_g != 0x00ff00) ||
1495	(mask_b != 0x0000ff))
1496	return;
1497	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1498	lookup_r = lookup;
1499	lookup_g = lookup+256;
1500	lookup_b = lookup+256+256;
1501	sh_r = 16;
1502	sh_g = 8;
1503	sh_b = 0;
1504	break;
1505	case 32:
1506	if ((mask_r != 0xff0000) ||
1507	(mask_g != 0x00ff00) ||
1508	(mask_b != 0x0000ff))
1509	return;
1510	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1511	lookup_r = lookup;
1512	lookup_g = lookup+256;
1513	lookup_b = lookup+256+256;
1514	sh_r = 16;
1515	sh_g = 8;
1516	sh_b = 0;
1517	break;
1518	default:
1519	return; /* we do not support this color depth */
1520	}
1521
1522	/* prepare limits for color transformation (each channel is handled separately) */
1523	if (shade > 100)
1524	{
1525	shade = 200 - shade;
1526
1527	high.r = c.r * shade / 100;
1528	high.g = c.g * shade / 100;
1529	high.b = c.b * shade / 100;
1530
1531	low.r = 65535 * (100 - shade) / 100;
1532	low.g = 65535 * (100 - shade) / 100;
1533	low.b = 65535 * (100 - shade) / 100;
1534	}
1535	else
1536	{
1537	high.r = c.r * shade / 100;
1538	high.g = c.g * shade / 100;
1539	high.b = c.b * shade / 100;
1540
1541	low.r = low.g = low.b = 0;
1542	}
1543
1544	/* fill our lookup tables */
1545	for (i = 0; i <= mask_r>>sh_r; i++)
1546	{
1547	uint32_t tmp;
1548	tmp = i * high.r;
1549	tmp += (mask_r>>sh_r) * low.r;
1550	lookup_r[i] = (tmp/65535)<<sh_r;
1551	}
1552	for (i = 0; i <= mask_g>>sh_g; i++)
1553	{
1554	uint32_t tmp;
1555	tmp = i * high.g;
1556	tmp += (mask_g>>sh_g) * low.g;
1557	lookup_g[i] = (tmp/65535)<<sh_g;
1558	}
1559	for (i = 0; i <= mask_b>>sh_b; i++)
1560	{
1561	uint32_t tmp;
1562	tmp = i * high.b;
1563	tmp += (mask_b>>sh_b) * low.b;
1564	lookup_b[i] = (tmp/65535)<<sh_b;
1565	}
1566
1567	/* apply table to input image (replacing colors by newly calculated ones) */
1568	if (ximage->bits_per_pixel == 32
1569	&& (ximage->depth == 24 || ximage->depth == 32)
1570	&& ximage->byte_order == host_byte_order)
1571	{
1572	uint32_t *p1, *pf, *p, *pl;
1573	p1 = (uint32_t *) ximage->data;
1574	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1575
1576	while (p1 < pf)
1577	{
1578	p = p1;
1579	pl = p1 + ximage->width;
1580	for (; p < pl; p++)
1581	{
1582	*p = lookup_r[(*p & 0xff0000) >> 16] |
1583	lookup_g[(*p & 0x00ff00) >> 8] |
1584	lookup_b[(*p & 0x0000ff)] |
1585	(*p & 0xff000000);
1586	}
1587	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1588	}
1589	}
1590	else
1591	{
1592	for (int y = 0; y < ximage->height; y++)
1593	for (int x = 0; x < ximage->width; x++)
1594	{
1595	unsigned long pixel = XGetPixel (ximage, x, y);
1596	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1597	lookup_g[(pixel & mask_g) >> sh_g] |
1598	lookup_b[(pixel & mask_b) >> sh_b];
1599	XPutPixel (ximage, x, y, pixel);
1600	}
1601	}
1602
1603	free (lookup);
1604	}
1605	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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