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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.144 by sf-exg, Fri Jan 28 00:20:47 2011 UTC vs.
Revision 1.258 by root, Thu May 22 18:54:32 2014 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <pcg@goof.com>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 3 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
14	*	14	*
15	* This program is distributed in the hope that it will be useful,	15	* This program is distributed in the hope that it will be useful,
16	* but WITHOUT ANY WARRANTY; without even the implied warranty of	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
…		…
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	#endif	36	# endif
71		37
72	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
73	if (pixbuf)	39	fimage.destroy ();
74	g_object_unref (pixbuf);
75	#endif	40	# endif
76
77	if (bg_pixmap)
78	XFreePixmap (dpy, bg_pixmap);
79	}
80
81	bool
82	rxvt_term::bg_set_position (int x, int y)
83	{
84
85	if (target_x != x
86	|| target_y != y)
87	{
88	target_x = x;
89	target_y = y;
90	return true;
91	}
92	return false;
93	}	41	}
94		42
95	bool	43	bool
96	rxvt_term::bg_window_size_sensitive ()	44	rxvt_term::bg_window_size_sensitive ()
97	{	45	{
98	# ifdef ENABLE_TRANSPARENCY	46	# if BG_IMAGE_FROM_ROOT
99	if (bg_flags & BG_IS_TRANSPARENT)	47	if (root_img)
100	return true;	48	return true;
101	# endif	49	# endif
102		50
103	# ifdef BG_IMAGE_FROM_FILE	51	# if BG_IMAGE_FROM_FILE
104	if (bg_flags & BG_IS_FROM_FILE)	52	if (fimage.img)
105	{	53	{
106	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)
107	return true;	57	return true;
108	}	58	}
109	# endif	59	# endif
110		60
111	return false;	61	return false;
112	}	62	}
113		63
114	bool	64	bool
115	rxvt_term::bg_window_position_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
116	{	66	{
117	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
118	if (bg_flags & BG_IS_TRANSPARENT)	68	if (root_img)
119	return true;	69	return true;
120	# endif	70	# endif
121		71
122	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
123	if (bg_flags & BG_IS_FROM_FILE)	73	if (fimage.img)
124	{	74	{
125	if (bg_flags & BG_ROOT_ALIGN)	75	if (fimage.flags & IM_ROOT_ALIGN)
126	return true;	76	return true;
127	}	77	}
128	# endif	78	# endif
129		79
130	return false;	80	return false;
131	}	81	}
132		82
133	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
134	static inline bool
135	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
136	{
137	if (geom_flags & flag)
138	{
139	if (new_value > 1000)
140	new_value = 1000;
141	if (new_value != scale)
142	{
143	scale = new_value;
144	return true;
145	}
146	}
147	return false;
148	}
149
150	static inline bool
151	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
152	{
153	if (geom_flags & flag)
154	{
155	if (new_value < -100)
156	new_value = -100;
157	else if (new_value > 200)
158	new_value = 200;
159	if (new_value != align)
160	{
161	align = new_value;
162	return true;
163	}
164	}
165	return false;
166	}
167
168	static inline int	84	static inline int
169	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
170	{	86	{
171	int diff = window_size - image_size;
172	int smaller = min (image_size, window_size);
173
174	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
175	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
176	else if (align > 100 && align <= 200)	89	else if (align > 100)
177	return ((align - 100) * smaller / 100) + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
178	else if (align >= -100 && align < 0)	91	else
179	return ((align + 100) * smaller / 100) - image_size;	92	return lerp (-image_size, 0, align + 100);
180	return 0;
181	}	93	}
182		94
183	static inline int	95	static void
184	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)
185	{	97	{
186	int src_pos = 0;	98	if (!strcasecmp (style, "tiled"))
187	dst_pos = pos;
188	dst_size = size;
189	if (pos < 0)
190	{
191	src_pos = -pos;
192	dst_pos = 0;
193	dst_size += pos;
194	}	99	{
195		100	flags = IM_TILE;
196	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
197	dst_size = target_size - dst_pos;	102	x = y = 0;
198	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	}
199	}	128	}
200		129
201	bool	130	bool
202	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
203	{	132	{
204	bool changed = false;	133	bool changed = false;
205	int geom_flags = 0;	134	int geom_flags = 0;
206	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
207	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
208	unsigned int n;	138	unsigned int h = v_scale;
209	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	139	uint8_t new_flags = 0;
210	const char *ops;
211		140
212	if (geom == NULL)	141	if (geom == NULL)
213	return false;	142	return false;
214		143
215	char str[256];	144	if (geom[0])
216
217	ops = strchr (geom, ':');
218	if (ops == NULL)
219	n = strlen (geom);
220	else
221	n = ops - geom;
222
223	if (n >= sizeof (str))
224	return false;
225
226	memcpy (str, geom, n);
227	str[n] = '\0';
228	rxvt_strtrim (str);
229
230	if (str[0])
231	{	145	{
232	/* 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
233	geom_flags = XParseGeometry (str, &x, &y, &w, &h);	208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
234	} /* done parsing geometry string */	209	} /* done parsing ops */
		210
		211	rxvt_free_strsplit (arr);
		212	}
		213
		214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
235		215
236	if (!update)	216	if (!update)
237	{	217	{
238	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
239	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
244	w = h = defaultScale;	224	w = h = defaultScale;
245	else if (!(geom_flags & HeightValue))	225	else if (!(geom_flags & HeightValue))
246	h = w;	226	h = w;
247	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
248	w = h;	228	w = h;
249
250	geom_flags |= WidthValue|HeightValue|XValue|YValue;
251	}
252
253	if (ops)
254	{	229	}
255	char **arr = rxvt_strsplit (':', ops + 1);
256		230
257	for (int i = 0; arr[i]; i++)	231	clamp_it (x, -100, 200);
258	{	232	clamp_it (y, -100, 200);
259	if (!strcasecmp (arr[i], "tile"))
260	{
261	w = h = noScale;
262	geom_flags |= WidthValue|HeightValue;
263	}
264	else if (!strcasecmp (arr[i], "propscale"))
265	{
266	new_flags |= BG_PROP_SCALE;
267	}
268	else if (!strcasecmp (arr[i], "hscale"))
269	{
270	if (w == 0) w = windowScale;
271		233
272	h = noScale;	234	if (flags != new_flags
273	geom_flags |= WidthValue|HeightValue;	235	|| h_scale != w
274	}	236	|| v_scale != h
275	else if (!strcasecmp (arr[i], "vscale"))	237	|| h_align != x
276	{	238	|| v_align != y)
277	if (h == 0) h = windowScale;
278
279	w = noScale;
280	geom_flags |= WidthValue|HeightValue;
281	}
282	else if (!strcasecmp (arr[i], "scale"))
283	{
284	if (h == 0) h = windowScale;
285	if (w == 0) w = windowScale;
286
287	geom_flags |= WidthValue|HeightValue;
288	}
289	else if (!strcasecmp (arr[i], "auto"))
290	{
291	w = h = windowScale;
292	x = y = centerAlign;
293	geom_flags |= WidthValue|HeightValue|XValue|YValue;
294	}
295	else if (!strcasecmp (arr[i], "root"))
296	{
297	new_flags |= BG_ROOT_ALIGN;
298	w = h = noScale;
299	geom_flags |= WidthValue|HeightValue;
300	}
301	} /* done parsing ops */
302
303	rxvt_free_strsplit (arr);
304	}	239	{
305
306	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
307	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
308	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
309	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
310
311	if (new_flags != bg_flags)
312	{
313	bg_flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
314	changed = true;	245	changed = true;
315	}	246	}
316		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
317	return changed;	253	return changed;
318	}	254	}
319		255
320	void	256	void
321	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)
322	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
323	int target_width = szHint.width;	261	int parent_width = szHint.width;
324	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);
325		265
326	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)
327	{	275	{
328	float scale = (float)target_width / image_width;	276	float scale = (float)w / image_width;
329	min_it (scale, (float)target_height / image_height);	277	min_it (scale, (float)h / image_height);
330	w = image_width * scale + 0.5;	278	w = image_width * scale + 0.5;
331	h = image_height * scale + 0.5;	279	h = image_height * scale + 0.5;
332	}	280	}
333	else
334	{
335	w = h_scale * target_width / 100;
336	h = v_scale * target_height / 100;
337	}
338		281
339	if (!w) w = image_width;	282	if (!w) w = image_width;
340	if (!h) h = image_height;	283	if (!h) h = image_height;
341		284
342	if (bg_flags & BG_ROOT_ALIGN)	285	if (image.flags & IM_ROOT_ALIGN)
343	{	286	{
344	x = -target_x;	287	x = -parent_x;
345	y = -target_y;	288	y = -parent_y;
346	}	289	}
347	else	290	else
348	{	291	{
349	x = make_align_position (h_align, target_width, w);	292	x = make_align_position (image.h_align, parent_width, w);
350	y = make_align_position (v_align, target_height, h);	293	y = make_align_position (image.v_align, parent_height, h);
351	}
352
353	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
354	if ((bg_flags & BG_PROP_SCALE) || h_scale || v_scale
355	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
356	|| w > target_width || h > target_height)
357	bg_flags |= BG_IS_SIZE_SENSITIVE;
358	}
359
360	# ifdef HAVE_AFTERIMAGE
361	bool
362	rxvt_term::render_image (unsigned long tr_flags)
363	{
364	init_asv ();
365
366	ASImage *background = NULL;
367	ARGB32 background_tint = TINT_LEAVE_SAME;
368
369	# ifdef ENABLE_TRANSPARENCY
370	if (tr_flags)
371	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
372
373	if (tr_flags & BG_NEEDS_TINT)
374	{	294	}
375	ShadingInfo as_shade;
376	as_shade.shading = shade;
377		295
378	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	296	if (!(image.flags & IM_ROOT_ALIGN)
379	if (bg_flags & BG_TINT_SET)
380	tint.get (c);
381	as_shade.tintColor.red = c.r;
382	as_shade.tintColor.green = c.g;
383	as_shade.tintColor.blue = c.b;
384
385	background_tint = shading2tint32 (&as_shade);
386	}
387
388	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
389	{
390	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
391	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
392	100, ASIMAGE_QUALITY_DEFAULT);
393	if (tmp)
394	{
395	destroy_asimage (&background);
396	background = tmp;
397	}
398	}
399	# endif
400
401	ASImage *result = 0;
402
403	int target_width = szHint.width;
404	int target_height = szHint.height;
405	int new_pmap_width = target_width;
406	int new_pmap_height = target_height;
407
408	int x = 0;
409	int y = 0;
410	int w = 0;
411	int h = 0;
412
413	if (original_asim)
414	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
415
416	if (!original_asim
417	|| (!(bg_flags & BG_ROOT_ALIGN)
418	&& (x >= target_width	297	&& (x >= parent_width
419	|| y >= target_height	298	|| y >= parent_height
420	|| (x + w <= 0)	299	|| x + w <= 0
421	|| (y + h <= 0))))	300	|| y + h <= 0))
422	{	301	return;
423	if (background)
424	{
425	new_pmap_width = background->width;
426	new_pmap_height = background->height;
427	result = background;
428		302
429	if (background_tint != TINT_LEAVE_SAME)	303	rxvt_img *img = image.img->scale (w, h);
430	{	304
431	ASImage *tmp = tile_asimage (asv, background, 0, 0,	305	if (image.flags & IM_TILE)
432	target_width, target_height, background_tint,	306	img->repeat_mode (RepeatNormal);
433	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
434	if (tmp)
435	result = tmp;
436	}
437	}
438	else
439	new_pmap_width = new_pmap_height = 0;
440	}
441	else	307	else
442	{	308	img->repeat_mode (RepeatNone);
443	result = original_asim;	309	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
444		310
445	if ((w != original_asim->width)	311	if (bg_img)
446	|| (h != original_asim->height))	312	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
447	{
448	result = scale_asimage (asv, original_asim,
449	w, h,
450	background ? ASA_ASImage : ASA_XImage,
451	100, ASIMAGE_QUALITY_DEFAULT);
452	}
453		313
454	if (background == NULL)
455	{
456	if (h_scale == 0 || v_scale == 0)
457	{
458	/* if tiling - pixmap has to be sized exactly as the image,
459	but there is no need to make it bigger than the window! */
460	new_pmap_width = min (result->width, target_width);
461	new_pmap_height = min (result->height, target_height);
462
463	/* we also need to tile our image in both directions */
464	ASImage *tmp = tile_asimage (asv, result,
465	(int)result->width - x,
466	(int)result->height - y,
467	new_pmap_width,
468	new_pmap_height,
469	TINT_LEAVE_SAME, ASA_XImage,
470	100, ASIMAGE_QUALITY_DEFAULT);
471	if (tmp)
472	{
473	if (result != original_asim)
474	destroy_asimage (&result);
475
476	result = tmp;
477	}
478	}
479	}
480	else
481	{
482	/* if blending background and image - pixmap has to be sized same as target window */
483	ASImageLayer *layers = create_image_layers (2);
484
485	layers[0].im = background;
486	layers[0].clip_width = target_width;
487	layers[0].clip_height = target_height;
488	layers[0].tint = background_tint;
489	layers[1].im = result;
490
491	if (h_scale == 0 || v_scale == 0)
492	{
493	/* tile horizontally */
494	while (x > 0) x -= (int)result->width;
495	layers[1].dst_x = x;
496	layers[1].clip_width = result->width+target_width;
497	}
498	else
499	{
500	/* clip horizontally */
501	layers[1].dst_x = x;
502	layers[1].clip_width = result->width;
503	}
504
505	if (h_scale == 0 || v_scale == 0)
506	{
507	while (y > 0) y -= (int)result->height;
508	layers[1].dst_y = y;
509	layers[1].clip_height = result->height + target_height;
510	}
511	else
512	{
513	layers[1].dst_y = y;
514	layers[1].clip_height = result->height;
515	}
516
517	if (rs[Rs_blendtype])
518	{
519	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
520	if (layers[1].merge_scanlines == NULL)
521	layers[1].merge_scanlines = alphablend_scanlines;
522	}
523
524	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
525	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
526
527	if (tmp)
528	{
529	if (result != original_asim)
530	destroy_asimage (&result);
531
532	result = tmp;
533	}
534
535	free (layers);
536	}
537	}
538
539	bool ret = false;
540
541	if (result)
542	{
543	XGCValues gcv;
544	GC gc;
545
546	/* create Pixmap */
547	if (bg_pixmap == None
548	|| bg_pmap_width != new_pmap_width
549	|| bg_pmap_height != new_pmap_height)
550	{
551	if (bg_pixmap)
552	XFreePixmap (dpy, bg_pixmap);
553	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
554	bg_pmap_width = new_pmap_width;
555	bg_pmap_height = new_pmap_height;
556	}
557	/* fill with background color (if result's not completely overlapping it) */
558	gcv.foreground = pix_colors[Color_bg];
559	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
560
561	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
562	int dst_width = result->width, dst_height = result->height;
563	if (background == NULL)
564	{
565	if (!(h_scale == 0 || v_scale == 0))
566	{
567	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
568	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
569	}
570
571	if (dst_x > 0 || dst_y > 0
572	|| dst_x + dst_width < new_pmap_width
573	|| dst_y + dst_height < new_pmap_height)
574	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
575	}
576
577	/* put result on pixmap */
578	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
579	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
580
581	if (result != background && result != original_asim)
582	destroy_asimage (&result);
583
584	XFreeGC (dpy, gc);
585
586	ret = true;
587	}
588
589	if (background)
590	destroy_asimage (&background);
591
592	return ret;
593	}
594	# endif /* HAVE_AFTERIMAGE */
595
596	# ifdef HAVE_PIXBUF
597	bool
598	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
599	int src_x, int src_y, int dst_x, int dst_y,
600	unsigned int width, unsigned int height)
601	{
602	XImage *ximage;
603	char *data, *line;
604	int bytes_per_pixel;
605	int width_r, width_g, width_b;
606	int sh_r, sh_g, sh_b;
607	int rowstride;
608	int channels;
609	unsigned char *row;
610
611	if (visual->c_class != TrueColor)
612	return false;
613
614	if (depth == 24 || depth == 32)
615	bytes_per_pixel = 4;
616	else if (depth == 15 || depth == 16)
617	bytes_per_pixel = 2;
618	else
619	return false;
620
621	width_r = rxvt_popcount (visual->red_mask);
622	width_g = rxvt_popcount (visual->green_mask);
623	width_b = rxvt_popcount (visual->blue_mask);
624
625	if (width_r > 8 || width_g > 8 || width_b > 8)
626	return false;
627
628	sh_r = rxvt_ctz (visual->red_mask);
629	sh_g = rxvt_ctz (visual->green_mask);
630	sh_b = rxvt_ctz (visual->blue_mask);
631
632	if (width > INT_MAX / height / bytes_per_pixel)
633	return false;
634
635	data = (char *)malloc (width * height * bytes_per_pixel);
636	if (!data)
637	return false;
638
639	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
640	width, height, bytes_per_pixel * 8, 0);
641	if (!ximage)
642	{
643	free (data);
644	return false;
645	}
646
647	ximage->byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
648
649	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
650	channels = gdk_pixbuf_get_n_channels (pixbuf);
651	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
652	line = data;
653
654	for (int y = 0; y < height; y++)
655	{
656	for (int x = 0; x < width; x++)
657	{
658	unsigned char *pixel = row + x * channels;
659	uint32_t value;
660
661	value = ((pixel[0] >> (8 - width_r)) << sh_r)
662	| ((pixel[1] >> (8 - width_g)) << sh_g)
663	| ((pixel[2] >> (8 - width_b)) << sh_b);
664
665	if (bytes_per_pixel == 4)
666	((uint32_t *)line)[x] = value;
667	else
668	((uint16_t *)line)[x] = value;
669	}
670
671	row += rowstride;
672	line += ximage->bytes_per_line;
673	}
674
675	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
676	XDestroyImage (ximage);
677	return true;
678	}
679
680	bool
681	rxvt_term::render_image (unsigned long tr_flags)
682	{
683	if (!pixbuf)
684	return false;
685
686	if (tr_flags
687	&& !(bg_flags & BG_HAS_RENDER))
688	return false;
689
690	GdkPixbuf *result;
691
692	int image_width = gdk_pixbuf_get_width (pixbuf);
693	int image_height = gdk_pixbuf_get_height (pixbuf);
694
695	int target_width = szHint.width;
696	int target_height = szHint.height;
697	int new_pmap_width = target_width;
698	int new_pmap_height = target_height;
699
700	int x = 0;
701	int y = 0;
702	int w = 0;
703	int h = 0;
704
705	get_image_geometry (image_width, image_height, w, h, x, y);
706
707	if (!(bg_flags & BG_ROOT_ALIGN)
708	&& (x >= target_width
709	|| y >= target_height
710	|| (x + w <= 0)
711	|| (y + h <= 0)))
712	return false;
713
714	result = pixbuf;
715
716	if ((w != image_width)
717	|| (h != image_height))
718	{
719	result = gdk_pixbuf_scale_simple (pixbuf,
720	w, h,
721	GDK_INTERP_BILINEAR);
722	}
723
724	bool ret = false;
725
726	if (result)
727	{
728	XGCValues gcv;
729	GC gc;
730	Pixmap root_pmap;
731
732	image_width = gdk_pixbuf_get_width (result);
733	image_height = gdk_pixbuf_get_height (result);
734
735	if (tr_flags)
736	{
737	root_pmap = bg_pixmap;
738	bg_pixmap = None;
739	}
740	else
741	{
742	if (h_scale == 0 || v_scale == 0)
743	{
744	new_pmap_width = min (image_width, target_width);
745	new_pmap_height = min (image_height, target_height);
746	}
747	}
748
749	if (bg_pixmap == None
750	|| bg_pmap_width != new_pmap_width
751	|| bg_pmap_height != new_pmap_height)
752	{
753	if (bg_pixmap)
754	XFreePixmap (dpy, bg_pixmap);
755	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
756	bg_pmap_width = new_pmap_width;
757	bg_pmap_height = new_pmap_height;
758	}
759
760	gcv.foreground = pix_colors[Color_bg];
761	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
762
763	if (h_scale == 0 || v_scale == 0)
764	{
765	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
766	pixbuf_to_pixmap (result, tile, gc,
767	0, 0,
768	0, 0,
769	image_width, image_height);
770
771	gcv.tile = tile;
772	gcv.fill_style = FillTiled;
773	gcv.ts_x_origin = x;
774	gcv.ts_y_origin = y;
775	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
776
777	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
778	XFreePixmap (dpy, tile);
779	}
780	else
781	{
782	int src_x, src_y, dst_x, dst_y;
783	int dst_width, dst_height;
784
785	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
786	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
787
788	if (dst_x > 0 || dst_y > 0
789	|| dst_x + dst_width < new_pmap_width
790	|| dst_y + dst_height < new_pmap_height)
791	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
792
793	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
794	pixbuf_to_pixmap (result, bg_pixmap, gc,
795	src_x, src_y,
796	dst_x, dst_y,
797	dst_width, dst_height);
798	}
799
800	#if XRENDER
801	if (tr_flags)
802	{
803	XRenderPictureAttributes pa;
804
805	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	314	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
806	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	315	img->convert_format (format, pix_colors [Color_bg])->replace (img);
807		316
808	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	317	delete bg_img;
809	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	318	bg_img = img;
810
811	pa.repeat = True;
812	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
813	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
814	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
815	XFreePixmap (dpy, mask_pmap);
816
817	if (src && dst && mask)
818	{
819	XRenderColor mask_c;
820
821	mask_c.alpha = 0x8000;
822	mask_c.red = 0;
823	mask_c.green = 0;
824	mask_c.blue = 0;
825	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
826	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
827	}
828
829	XRenderFreePicture (dpy, src);
830	XRenderFreePicture (dpy, dst);
831	XRenderFreePicture (dpy, mask);
832
833	XFreePixmap (dpy, root_pmap);
834	}
835	#endif
836
837	if (result != pixbuf)
838	g_object_unref (result);
839
840	XFreeGC (dpy, gc);
841
842	ret = true;
843	}
844
845	return ret;
846	}	319	}
847	# endif /* HAVE_PIXBUF */
848		320
849	bool	321	rxvt_image::rxvt_image ()
850	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)
851	{	335	{
852	if (!file || !*file)	336	if (!file || !*file)
853	return false;	337	return;
854		338
855	if (const char *p = strchr (file, ';'))	339	const char *p = strchr (file, ';');
		340
		341	if (p)
856	{	342	{
857	size_t len = p - file;	343	size_t len = p - file;
858	char *f = rxvt_temp_buf<char> (len + 1);	344	char *f = rxvt_temp_buf<char> (len + 1);
859	memcpy (f, file, len);	345	memcpy (f, file, len);
860	f[len] = '\0';	346	f[len] = '\0';
861	file = f;	347	file = f;
862	}	348	}
863		349
864	# ifdef HAVE_AFTERIMAGE	350	set_file (s, file);
865	if (!asimman)	351	alpha = 0x8000;
866	asimman = create_generic_imageman (rs[Rs_path]);	352	set_geometry (p ? p + 1 : "");
867	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	353	}
868	if (image)
869	{
870	if (original_asim)
871	safe_asimage_destroy (original_asim);
872	original_asim = image;
873	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
874	return true;
875	}
876	# endif
877		354
878	# ifdef HAVE_PIXBUF	355	void
879	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	356	rxvt_image::set_file (rxvt_screen *s, const char *file)
880	if (image)	357	{
881	{	358	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
882	if (pixbuf)	359	delete img;
883	g_object_unref (pixbuf);	360	img = img2;
884	pixbuf = image;
885	bg_flags |= BG_IS_FROM_FILE;
886	return true;
887	}
888	# endif
889
890	return false;
891	}	361	}
892		362
893	# endif /* BG_IMAGE_FROM_FILE */	363	# endif /* BG_IMAGE_FROM_FILE */
894		364
895	# ifdef ENABLE_TRANSPARENCY
896	bool	365	bool
897	rxvt_term::bg_set_transparent ()	366	image_effects::set_blur (const char *geom)
898	{
899	if (!(bg_flags & BG_IS_TRANSPARENT))
900	{
901	bg_flags |= BG_IS_TRANSPARENT;
902	return true;
903	}
904
905	return false;
906	}
907
908	bool
909	rxvt_term::bg_set_blur (const char *geom)
910	{	367	{
911	bool changed = false;	368	bool changed = false;
912	unsigned int hr, vr;	369	unsigned int hr, vr;
913	int junk;	370	int junk;
914	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	371	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
931	{	388	{
932	changed = true;	389	changed = true;
933	v_blurRadius = vr;	390	v_blurRadius = vr;
934	}	391	}
935		392
936	if (v_blurRadius == 0 && h_blurRadius == 0)
937	bg_flags &= ~BG_NEEDS_BLUR;
938	else
939	bg_flags |= BG_NEEDS_BLUR;
940
941	return changed;	393	return changed;
942	}	394	}
943		395
944	static inline unsigned long
945	compute_tint_shade_flags (rxvt_color *tint, int shade)
946	{
947	unsigned long flags = 0;
948	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
949	bool has_shade = shade != 100;
950
951	if (tint)
952	{
953	tint->get (c);
954	if (!has_shade
955	&& (c.r <= 0x00ff || c.r >= 0xff00)
956	&& (c.g <= 0x00ff || c.g >= 0xff00)
957	&& (c.b <= 0x00ff || c.b >= 0xff00))
958	flags |= rxvt_term::BG_TINT_BITAND;
959	}
960
961	if (has_shade || tint)
962	flags |= rxvt_term::BG_NEEDS_TINT;
963
964	return flags;
965	}
966
967	bool	396	bool
968	rxvt_term::bg_set_tint (rxvt_color &new_tint)	397	image_effects::set_tint (const rxvt_color &new_tint)
969	{	398	{
970	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	399	if (!tint_set || tint != new_tint)
971	{	400	{
972	unsigned long new_flags = compute_tint_shade_flags (&new_tint, shade);
973	tint = new_tint;	401	tint = new_tint;
974	bg_flags = (bg_flags & ~BG_TINT_FLAGS) | new_flags | BG_TINT_SET;	402	tint_set = true;
		403
975	return true;	404	return true;
976	}	405	}
977		406
978	return false;	407	return false;
979	}	408	}
980		409
981	bool	410	bool
982	rxvt_term::bg_set_shade (const char *shade_str)	411	image_effects::set_shade (const char *shade_str)
983	{	412	{
984	int new_shade = (shade_str) ? atoi (shade_str) : 100;	413	int new_shade = atoi (shade_str);
985		414
986	clamp_it (new_shade, -100, 200);	415	clamp_it (new_shade, -100, 200);
987	if (new_shade < 0)	416	if (new_shade < 0)
988	new_shade = 200 - (100 + new_shade);	417	new_shade = 200 - (100 + new_shade);
989		418
990	if (new_shade != shade)	419	if (new_shade != shade)
991	{	420	{
992	unsigned long new_flags = compute_tint_shade_flags ((bg_flags & BG_TINT_SET) ? &tint : NULL, new_shade);
993	shade = new_shade;	421	shade = new_shade;
994	bg_flags = (bg_flags & ~BG_TINT_FLAGS) | new_flags;
995	return true;	422	return true;
996	}	423	}
997		424
998	return false;	425	return false;
999	}	426	}
1000		427
1001	#if XRENDER	428	# if BG_IMAGE_FROM_ROOT
1002	static void	429	/*
1003	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1004	{
1005	double sigma = radius / 2.0;
1006	double scale = sqrt (2.0 * M_PI) * sigma;
1007	double sum = 0.0;
1008
1009	for (int i = 0; i < width; i++)
1010	{
1011	double x = i - width / 2;
1012	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1013	sum += kernel[i];
1014	}
1015
1016	params[0] = XDoubleToFixed (width);
1017	params[1] = XDoubleToFixed (1);
1018
1019	for (int i = 0; i < width; i++)
1020	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1021	}
1022	#endif
1023
1024	bool
1025	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1026	{
1027	bool ret = false;
1028	#if XRENDER
1029	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1030	double *kernel = (double *)malloc (size * sizeof (double));
1031	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1032
1033	XRenderPictureAttributes pa;
1034	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1035
1036	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1037	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1038
1039	if (kernel && params && src && dst)
1040	{
1041	if (h_blurRadius)
1042	{
1043	size = h_blurRadius * 2 + 1;
1044	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1045
1046	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1047	XRenderComposite (dpy,
1048	PictOpSrc,
1049	src,
1050	None,
1051	dst,
1052	0, 0,
1053	0, 0,
1054	0, 0,
1055	width, height);
1056	}
1057
1058	if (v_blurRadius)
1059	{
1060	size = v_blurRadius * 2 + 1;
1061	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1062	::swap (params[0], params[1]);
1063
1064	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1065	XRenderComposite (dpy,
1066	PictOpSrc,
1067	src,
1068	None,
1069	dst,
1070	0, 0,
1071	0, 0,
1072	0, 0,
1073	width, height);
1074	}
1075
1076	ret = true;
1077	}
1078
1079	free (kernel);
1080	free (params);
1081	XRenderFreePicture (dpy, src);
1082	XRenderFreePicture (dpy, dst);
1083	#endif
1084	return ret;
1085	}
1086
1087	bool
1088	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1089	{
1090	bool ret = false;
1091
1092	if (bg_flags & BG_TINT_BITAND)
1093	{
1094	XGCValues gcv;
1095	GC gc;
1096
1097	/* In this case we can tint image server-side getting significant
1098	* performance improvements, as we eliminate XImage transfer
1099	*/
1100	gcv.foreground = Pixel (tint);
1101	gcv.function = GXand;
1102	gcv.fill_style = FillSolid;
1103	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1104	if (gc)
1105	{
1106	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1107	ret = true;
1108	XFreeGC (dpy, gc);
1109	}
1110	}
1111	else
1112	{
1113	# if XRENDER
1114	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1115
1116	if (bg_flags & BG_TINT_SET)
1117	tint.get (c);
1118
1119	if (shade <= 100)
1120	{
1121	c.r = (c.r * shade) / 100;
1122	c.g = (c.g * shade) / 100;
1123	c.b = (c.b * shade) / 100;
1124	}
1125	else
1126	{
1127	c.r = (c.r * (200 - shade)) / 100;
1128	c.g = (c.g * (200 - shade)) / 100;
1129	c.b = (c.b * (200 - shade)) / 100;
1130	}
1131
1132	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1133	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1134	XRenderPictureAttributes pa;
1135
1136	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1137
1138	pa.repeat = True;
1139
1140	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1141	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1142	XFreePixmap (dpy, overlay_pmap);
1143
1144	pa.component_alpha = True;
1145	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1146	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat|CPComponentAlpha, &pa);
1147	XFreePixmap (dpy, mask_pmap);
1148
1149	if (mask_pic && overlay_pic && back_pic)
1150	{
1151	XRenderColor mask_c;
1152
1153	mask_c.red = mask_c.green = mask_c.blue = 0;
1154	mask_c.alpha = 0xffff;
1155	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1156
1157	mask_c.alpha = 0;
1158	mask_c.red = 0xffff - c.r;
1159	mask_c.green = 0xffff - c.g;
1160	mask_c.blue = 0xffff - c.b;
1161	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1162	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1163
1164	if (shade > 100)
1165	{
1166	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1167	mask_c.alpha = 0;
1168	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1169
1170	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1171	}
1172
1173	ret = true;
1174	}
1175
1176	XRenderFreePicture (dpy, mask_pic);
1177	XRenderFreePicture (dpy, overlay_pic);
1178	XRenderFreePicture (dpy, back_pic);
1179	# endif
1180	}
1181
1182	return ret;
1183	}
1184
1185	/* make_transparency_pixmap()
1186	* 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
1187	* 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
1188	* our window.	432	* our window.
1189	*/	433	*/
1190	unsigned long	434	void
1191	rxvt_term::make_transparency_pixmap ()	435	rxvt_term::render_root_image ()
1192	{	436	{
1193	unsigned long result = 0;
1194
1195	/* 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
1196	* be always up-to-date, so let's use it :	438	* be always up-to-date, so let's use it :
1197	*/	439	*/
1198	int screen = display->screen;	440	int screen = display->screen;
1199	int root_depth = DefaultDepth (dpy, screen);
1200	int root_width = DisplayWidth (dpy, screen);	441	int root_width = DisplayWidth (dpy, screen);
1201	int root_height = DisplayHeight (dpy, screen);	442	int root_height = DisplayHeight (dpy, screen);
1202	unsigned int root_pmap_width, root_pmap_height;
1203	int window_width = szHint.width;	443	int parent_width = szHint.width;
1204	int window_height = szHint.height;	444	int parent_height = szHint.height;
1205	int sx, sy;	445	int sx, sy;
1206	XGCValues gcv;
1207	GC gc;
1208		446
1209	sx = target_x;	447	sx = parent_x;
1210	sy = target_y;	448	sy = parent_y;
1211		449
1212	/* 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 : */
1213	if (sx + window_width <= 0 || sy + window_height <= 0	451	if (sx + parent_width <= 0 || sy + parent_height <= 0
1214	|| sx >= root_width || sy >= root_height)	452	|| sx >= root_width || sy >= root_height)
1215	return 0;	453	return;
1216		454
1217	// validate root pixmap and get its size	455	while (sx < 0) sx += root_img->w;
1218	if (root_pixmap != None)	456	while (sy < 0) sy += root_img->h;
1219	{
1220	Window wdummy;
1221	int idummy;
1222	unsigned int udummy;
1223		457
1224	allowedxerror = -1;	458	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1225		459
1226	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	460	if (root_effects.need_blur ())
1227	root_pixmap = None;	461	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1228		462
1229	allowedxerror = 0;	463	if (root_effects.need_tint ())
1230	}	464	{
		465	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1231		466
1232	Pixmap recoded_root_pmap = root_pixmap;	467	if (root_effects.tint_set)
1233		468	root_effects.tint.get (c);
1234	if (root_pixmap != None && root_depth != depth)	469	rxvt_img::nv factor = root_effects.shade / 100. - 1.;
		470	img->shade (factor, c)->replace (img);
1235	{	471	}
1236	#if XRENDER
1237	if (bg_flags & BG_HAS_RENDER)
1238	{
1239	XRenderPictureAttributes pa;
1240		472
1241	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1242	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1243
1244	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1245	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	473	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1246	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	474	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1247		475
1248	if (src && dst)	476	delete bg_img;
1249	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	477	bg_img = img;
1250	else
1251	{
1252	XFreePixmap (dpy, recoded_root_pmap);
1253	root_pixmap = None;
1254	}
1255
1256	XRenderFreePicture (dpy, src);
1257	XRenderFreePicture (dpy, dst);
1258	}
1259	else
1260	#endif
1261	root_pixmap = None;
1262	}
1263
1264	if (root_pixmap == None)
1265	return 0;
1266
1267	if (bg_pixmap == None
1268	|| bg_pmap_width != window_width
1269	|| bg_pmap_height != window_height)
1270	{
1271	if (bg_pixmap)
1272	XFreePixmap (dpy, bg_pixmap);
1273	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1274	bg_pmap_width = window_width;
1275	bg_pmap_height = window_height;
1276	}
1277
1278	if (bg_pixmap == None)
1279	return 0;
1280
1281	/* straightforward pixmap copy */
1282	while (sx < 0) sx += (int)root_width;
1283	while (sy < 0) sy += (int)root_height;
1284
1285	gcv.tile = recoded_root_pmap;
1286	gcv.fill_style = FillTiled;
1287	gcv.ts_x_origin = -sx;
1288	gcv.ts_y_origin = -sy;
1289	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1290
1291	if (gc)
1292	{
1293	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1294	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1295	XFreeGC (dpy, gc);
1296
1297	if (!(bg_flags & BG_CLIENT_RENDER))
1298	{
1299	if ((bg_flags & BG_NEEDS_BLUR)
1300	&& (bg_flags & BG_HAS_RENDER_CONV))
1301	{
1302	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1303	result &= ~BG_NEEDS_BLUR;
1304	}
1305	if ((bg_flags & BG_NEEDS_TINT)
1306	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1307	{
1308	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1309	result &= ~BG_NEEDS_TINT;
1310	}
1311	} /* server side rendering completed */
1312	}
1313
1314	if (recoded_root_pmap != root_pixmap)
1315	XFreePixmap (dpy, recoded_root_pmap);
1316
1317	return result;
1318	}	478	}
		479	# endif /* BG_IMAGE_FROM_ROOT */
1319		480
1320	void	481	void
1321	rxvt_term::bg_set_root_pixmap ()
1322	{
1323	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);
1324	if (new_root_pixmap == None)
1325	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1326
1327	root_pixmap = new_root_pixmap;
1328	}
1329	# endif /* ENABLE_TRANSPARENCY */
1330
1331	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1332	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1333	# endif
1334
1335	bool
1336	rxvt_term::bg_render ()	482	rxvt_term::bg_render ()
1337	{	483	{
1338	unsigned long tr_flags = 0;	484	if (bg_flags & BG_INHIBIT_RENDER)
		485	return;
1339		486
1340	bg_invalidate ();	487	delete bg_img;
1341	# 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 ();
1342	if (bg_flags & BG_IS_TRANSPARENT)	498	bg_flags |= BG_IS_TRANSPARENT;
1343	{	499	}
1344	/* we need to re-generate transparency pixmap in that case ! */
1345	tr_flags = make_transparency_pixmap ();
1346	if (tr_flags == 0)
1347	return false;
1348	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1349	bg_flags |= BG_IS_VALID;
1350	}
1351	# endif	500	# endif
1352		501
1353	# ifdef BG_IMAGE_FROM_FILE	502	# if BG_IMAGE_FROM_FILE
1354	if ((bg_flags & BG_IS_FROM_FILE)	503	if (fimage.img)
1355	|| (tr_flags & BG_EFFECTS_FLAGS))	504	render_image (fimage);
1356	{
1357	if (render_image (tr_flags))
1358	bg_flags |= BG_IS_VALID;
1359	}
1360	# endif	505	# endif
1361
1362	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1363	XImage *result = NULL;
1364
1365	if (tr_flags && !(bg_flags & BG_IS_VALID))
1366	{
1367	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1368	}
1369
1370	if (result)
1371	{
1372	/* our own client-side tinting */
1373	if (tr_flags & BG_NEEDS_TINT)
1374	{
1375	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1376	if (bg_flags & BG_TINT_SET)
1377	tint.get (c);
1378	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1379	}
1380
1381	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1382
1383	if (gc)
1384	{
1385	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1386
1387	XFreeGC (dpy, gc);
1388	bg_flags |= BG_IS_VALID;
1389	}
1390
1391	XDestroyImage (result);
1392	}
1393	# endif
1394
1395	if (!(bg_flags & BG_IS_VALID))
1396	{
1397	if (bg_pixmap != None)
1398	{
1399	XFreePixmap (dpy, bg_pixmap);
1400	bg_pixmap = None;
1401	}
1402	}
1403		506
1404	scr_recolour (false);	507	scr_recolour (false);
1405	bg_flags |= BG_NEEDS_REFRESH;	508	bg_flags |= BG_NEEDS_REFRESH;
1406		509
1407	bg_valid_since = ev::now ();	510	bg_valid_since = ev::now ();
1408
1409	return true;
1410	}	511	}
1411		512
1412	void	513	void
1413	rxvt_term::bg_init ()	514	rxvt_term::bg_init ()
1414	{	515	{
1415	#ifdef ENABLE_TRANSPARENCY	516	#if BG_IMAGE_FROM_ROOT
1416	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	}
1417	#endif	532	#endif
1418		533
1419	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	534	#if BG_IMAGE_FROM_FILE
1420	#if XRENDER	535	if (rs[Rs_backgroundPixmap])
1421	int major, minor;
1422	if (XRenderQueryVersion (dpy, &major, &minor))
1423	bg_flags |= BG_HAS_RENDER;
1424	XFilters *filters = XRenderQueryFilters (dpy, vt);
1425	if (filters)
1426	{	536	{
1427	for (int i = 0; i < filters->nfilter; i++)	537	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1428	if (!strcmp (filters->filter[i], FilterConvolution))	538	if (!bg_window_position_sensitive ())
1429	bg_flags |= BG_HAS_RENDER_CONV;	539	update_background ();
1430
1431	XFree (filters);
1432	}	540	}
1433	#endif	541	#endif
1434	}	542	}
1435		543
1436	#endif /* HAVE_BG_PIXMAP */	544	#endif /* HAVE_BG_PIXMAP */
1437
1438	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1439	/* taken from aterm-0.4.2 */
1440
1441	static void
1442	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1443	{
1444	int sh_r, sh_g, sh_b;
1445	uint32_t mask_r, mask_g, mask_b;
1446	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1447	rgba low;
1448	rgba high;
1449	int i;
1450	int host_byte_order = byteorder::big_endian () ? MSBFirst : LSBFirst;
1451
1452	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1453
1454	/* for convenience */
1455	mask_r = visual->red_mask;
1456	mask_g = visual->green_mask;
1457	mask_b = visual->blue_mask;
1458
1459	/* boring lookup table pre-initialization */
1460	switch (ximage->depth)
1461	{
1462	case 15:
1463	if ((mask_r != 0x7c00) ||
1464	(mask_g != 0x03e0) ||
1465	(mask_b != 0x001f))
1466	return;
1467	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1468	lookup_r = lookup;
1469	lookup_g = lookup+32;
1470	lookup_b = lookup+32+32;
1471	sh_r = 10;
1472	sh_g = 5;
1473	sh_b = 0;
1474	break;
1475	case 16:
1476	if ((mask_r != 0xf800) ||
1477	(mask_g != 0x07e0) ||
1478	(mask_b != 0x001f))
1479	return;
1480	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1481	lookup_r = lookup;
1482	lookup_g = lookup+32;
1483	lookup_b = lookup+32+64;
1484	sh_r = 11;
1485	sh_g = 5;
1486	sh_b = 0;
1487	break;
1488	case 24:
1489	if ((mask_r != 0xff0000) ||
1490	(mask_g != 0x00ff00) ||
1491	(mask_b != 0x0000ff))
1492	return;
1493	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1494	lookup_r = lookup;
1495	lookup_g = lookup+256;
1496	lookup_b = lookup+256+256;
1497	sh_r = 16;
1498	sh_g = 8;
1499	sh_b = 0;
1500	break;
1501	case 32:
1502	if ((mask_r != 0xff0000) ||
1503	(mask_g != 0x00ff00) ||
1504	(mask_b != 0x0000ff))
1505	return;
1506	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1507	lookup_r = lookup;
1508	lookup_g = lookup+256;
1509	lookup_b = lookup+256+256;
1510	sh_r = 16;
1511	sh_g = 8;
1512	sh_b = 0;
1513	break;
1514	default:
1515	return; /* we do not support this color depth */
1516	}
1517
1518	/* prepare limits for color transformation (each channel is handled separately) */
1519	if (shade > 100)
1520	{
1521	shade = 200 - shade;
1522
1523	high.r = c.r * shade / 100;
1524	high.g = c.g * shade / 100;
1525	high.b = c.b * shade / 100;
1526
1527	low.r = 65535 * (100 - shade) / 100;
1528	low.g = 65535 * (100 - shade) / 100;
1529	low.b = 65535 * (100 - shade) / 100;
1530	}
1531	else
1532	{
1533	high.r = c.r * shade / 100;
1534	high.g = c.g * shade / 100;
1535	high.b = c.b * shade / 100;
1536
1537	low.r = low.g = low.b = 0;
1538	}
1539
1540	/* fill our lookup tables */
1541	for (i = 0; i <= mask_r>>sh_r; i++)
1542	{
1543	uint32_t tmp;
1544	tmp = i * high.r;
1545	tmp += (mask_r>>sh_r) * low.r;
1546	lookup_r[i] = (tmp/65535)<<sh_r;
1547	}
1548	for (i = 0; i <= mask_g>>sh_g; i++)
1549	{
1550	uint32_t tmp;
1551	tmp = i * high.g;
1552	tmp += (mask_g>>sh_g) * low.g;
1553	lookup_g[i] = (tmp/65535)<<sh_g;
1554	}
1555	for (i = 0; i <= mask_b>>sh_b; i++)
1556	{
1557	uint32_t tmp;
1558	tmp = i * high.b;
1559	tmp += (mask_b>>sh_b) * low.b;
1560	lookup_b[i] = (tmp/65535)<<sh_b;
1561	}
1562
1563	/* apply table to input image (replacing colors by newly calculated ones) */
1564	if (ximage->bits_per_pixel == 32
1565	&& (ximage->depth == 24 || ximage->depth == 32)
1566	&& ximage->byte_order == host_byte_order)
1567	{
1568	uint32_t *p1, *pf, *p, *pl;
1569	p1 = (uint32_t *) ximage->data;
1570	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1571
1572	while (p1 < pf)
1573	{
1574	p = p1;
1575	pl = p1 + ximage->width;
1576	for (; p < pl; p++)
1577	{
1578	*p = lookup_r[(*p & 0xff0000) >> 16] |
1579	lookup_g[(*p & 0x00ff00) >> 8] |
1580	lookup_b[(*p & 0x0000ff)] |
1581	(*p & 0xff000000);
1582	}
1583	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1584	}
1585	}
1586	else
1587	{
1588	for (int y = 0; y < ximage->height; y++)
1589	for (int x = 0; x < ximage->width; x++)
1590	{
1591	unsigned long pixel = XGetPixel (ximage, x, y);
1592	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1593	lookup_g[(pixel & mask_g) >> sh_g] |
1594	lookup_b[(pixel & mask_b) >> sh_b];
1595	XPutPixel (ximage, x, y, pixel);
1596	}
1597	}
1598
1599	free (lookup);
1600	}
1601	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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