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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.185 by sf-exg, Mon Dec 26 14:53:56 2011 UTC vs.
Revision 1.243 by sf-exg, Sun Jun 17 17:06:47 2012 UTC

1	/*----------------------------------------------------------------------*	1	/*----------------------------------------------------------------------*
2	* File: background.C - former xpm.C	2	* File: background.C
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <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	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
38	void	30	void
39	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
40	{	32	{
41	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
42	if (original_asim)	34	delete root_img;
43	safe_asimage_destroy (original_asim);	35	root_img = 0;
44	if (asv)
45	destroy_asvisual (asv, 0);
46	if (asimman)
47	destroy_image_manager (asimman, 0);
48	#endif	36	# endif
49		37
50	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
51	if (pixbuf)	39	fimage.destroy ();
52	g_object_unref (pixbuf);
53	#endif	40	# endif
54		41
55	if (bg_pixmap)	42	delete bg_img;
56	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
57	}
58
59	bool
60	rxvt_term::bg_set_position (int x, int y)
61	{
62
63	if (target_x != x
64	|| target_y != y)
65	{
66	target_x = x;
67	target_y = y;
68	return true;
69	}
70	return false;
71	}	44	}
72		45
73	bool	46	bool
74	rxvt_term::bg_window_size_sensitive ()	47	rxvt_term::bg_window_size_sensitive ()
75	{	48	{
76	# ifdef ENABLE_TRANSPARENCY	49	# if ENABLE_TRANSPARENCY
77	if (bg_flags & BG_IS_TRANSPARENT)	50	if (bg_flags & BG_IS_TRANSPARENT)
78	return true;	51	return true;
79	# endif	52	# endif
80		53
81	# ifdef BG_IMAGE_FROM_FILE	54	# if BG_IMAGE_FROM_FILE
82	if (bg_flags & BG_IS_FROM_FILE)	55	if (fimage.img)
83	{	56	{
84	if (bg_flags & BG_IS_SIZE_SENSITIVE)	57	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		58	|| fimage.img->w > szHint.width
		59	|| fimage.img->h > szHint.height)
85	return true;	60	return true;
86	}	61	}
87	# endif	62	# endif
88		63
89	return false;	64	return false;
90	}	65	}
91		66
92	bool	67	bool
93	rxvt_term::bg_window_position_sensitive ()	68	rxvt_term::bg_window_position_sensitive ()
94	{	69	{
95	# ifdef ENABLE_TRANSPARENCY	70	# if ENABLE_TRANSPARENCY
96	if (bg_flags & BG_IS_TRANSPARENT)	71	if (bg_flags & BG_IS_TRANSPARENT)
97	return true;	72	return true;
98	# endif	73	# endif
99		74
100	# ifdef BG_IMAGE_FROM_FILE	75	# if BG_IMAGE_FROM_FILE
101	if (bg_flags & BG_IS_FROM_FILE)	76	if (fimage.img)
102	{	77	{
103	if (bg_flags & BG_ROOT_ALIGN)	78	if (fimage.flags & IM_ROOT_ALIGN)
104	return true;	79	return true;
105	}	80	}
106	# endif	81	# endif
107		82
108	return false;	83	return false;
109	}	84	}
110		85
111	# ifdef BG_IMAGE_FROM_FILE	86	# if BG_IMAGE_FROM_FILE
112	static inline bool
113	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
114	{
115	if (geom_flags & flag)
116	{
117	if (new_value > 1000)
118	new_value = 1000;
119	if (new_value != scale)
120	{
121	scale = new_value;
122	return true;
123	}
124	}
125	return false;
126	}
127
128	static inline bool
129	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
130	{
131	if (geom_flags & flag)
132	{
133	if (new_value < -100)
134	new_value = -100;
135	else if (new_value > 200)
136	new_value = 200;
137	if (new_value != align)
138	{
139	align = new_value;
140	return true;
141	}
142	}
143	return false;
144	}
145
146	static inline int	87	static inline int
147	make_align_position (int align, int window_size, int image_size)	88	make_align_position (int align, int window_size, int image_size)
148	{	89	{
149	int diff = window_size - image_size;
150	int smaller = min (image_size, window_size);
151
152	if (align >= 0 && align <= 100)	90	if (align >= 0 && align <= 100)
153	return diff * align / 100;	91	return lerp (0, window_size - image_size, align);
154	else if (align > 100 && align <= 200)	92	else if (align > 100)
155	return (align - 100) * smaller / 100 + window_size - smaller;	93	return lerp (window_size - image_size, window_size, align - 100);
156	else if (align >= -100 && align < 0)	94	else
157	return (align + 100) * smaller / 100 - image_size;	95	return lerp (-image_size, 0, align + 100);
158	return 0;
159	}	96	}
160		97
161	static inline int	98	static void
162	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	99	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
163	{	100	{
164	int src_pos = 0;	101	if (!strcasecmp (style, "tiled"))
165	dst_pos = pos;
166	dst_size = size;
167	if (pos < 0)
168	{
169	src_pos = -pos;
170	dst_pos = 0;
171	dst_size += pos;
172	}	102	{
173		103	flags = IM_TILE;
174	if (dst_pos + dst_size > target_size)	104	w = h = noScale;
175	dst_size = target_size - dst_pos;	105	x = y = 0;
176	return src_pos;	106	}
		107	else if (!strcasecmp (style, "aspect-stretched"))
		108	{
		109	flags = IM_KEEP_ASPECT;
		110	w = h = windowScale;
		111	x = y = centerAlign;
		112	}
		113	else if (!strcasecmp (style, "stretched"))
		114	{
		115	flags = 0;
		116	w = h = windowScale;
		117	x = y = centerAlign;
		118	}
		119	else if (!strcasecmp (style, "centered"))
		120	{
		121	flags = 0;
		122	w = h = noScale;
		123	x = y = centerAlign;
		124	}
		125	else if (!strcasecmp (style, "root-tiled"))
		126	{
		127	flags = IM_TILE|IM_ROOT_ALIGN;
		128	w = h = noScale;
		129	x = y = 0;
		130	}
177	}	131	}
178		132
179	bool	133	bool
180	rxvt_term::bg_set_geometry (const char *geom, bool update)	134	rxvt_image::set_geometry (const char *geom, bool update)
181	{	135	{
182	bool changed = false;	136	bool changed = false;
183	int geom_flags = 0;	137	int geom_flags = 0;
184	int x = 0, y = 0;	138	int x = h_align;
		139	int y = v_align;
185	unsigned int w = 0, h = 0;	140	unsigned int w = h_scale;
186	unsigned long new_flags = 0;	141	unsigned int h = v_scale;
		142	uint8_t new_flags = 0;
187		143
188	if (geom == NULL)	144	if (geom == NULL)
189	return false;	145	return false;
190		146
191	if (geom[0])	147	if (geom[0])
192	{	148	{
193	char **arr = rxvt_strsplit (':', geom);	149	char **arr = rxvt_strsplit (':', geom);
194		150
195	for (int i = 0; arr[i]; i++)	151	for (int i = 0; arr[i]; i++)
196	{	152	{
197	if (!strcasecmp (arr[i], "style=tiled"))	153	if (!strncasecmp (arr[i], "style=", 6))
198	{	154	{
199	new_flags = BG_TILE;	155	parse_style (arr[i] + 6, x, y, w, h, new_flags);
200	w = h = noScale;
201	x = y = 0;
202	geom_flags = WidthValue|HeightValue|XValue|YValue;	156	geom_flags = WidthValue|HeightValue|XValue|YValue;
203	}	157	}
204	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
205	{
206	new_flags = BG_KEEP_ASPECT;
207	w = h = windowScale;
208	x = y = centerAlign;
209	geom_flags = WidthValue|HeightValue|XValue|YValue;
210	}
211	else if (!strcasecmp (arr[i], "style=stretched"))
212	{
213	new_flags = 0;
214	w = h = windowScale;
215	geom_flags = WidthValue|HeightValue;
216	}
217	else if (!strcasecmp (arr[i], "style=centered"))
218	{
219	new_flags = 0;
220	w = h = noScale;
221	x = y = centerAlign;
222	geom_flags = WidthValue|HeightValue|XValue|YValue;
223	}
224	else if (!strcasecmp (arr[i], "style=root-tiled"))
225	{
226	new_flags = BG_TILE|BG_ROOT_ALIGN;
227	w = h = noScale;
228	geom_flags = WidthValue|HeightValue;
229	}
230	else if (!strcasecmp (arr[i], "op=tile"))	158	else if (!strcasecmp (arr[i], "op=tile"))
231	new_flags |= BG_TILE;	159	new_flags |= IM_TILE;
232	else if (!strcasecmp (arr[i], "op=keep-aspect"))	160	else if (!strcasecmp (arr[i], "op=keep-aspect"))
233	new_flags |= BG_KEEP_ASPECT;	161	new_flags |= IM_KEEP_ASPECT;
234	else if (!strcasecmp (arr[i], "op=root-align"))	162	else if (!strcasecmp (arr[i], "op=root-align"))
235	new_flags |= BG_ROOT_ALIGN;	163	new_flags |= IM_ROOT_ALIGN;
236		164
237	// deprecated	165	// deprecated
238	else if (!strcasecmp (arr[i], "tile"))	166	else if (!strcasecmp (arr[i], "tile"))
239	{	167	{
240	new_flags |= BG_TILE;	168	new_flags |= IM_TILE;
241	w = h = noScale;	169	w = h = noScale;
242	geom_flags |= WidthValue|HeightValue;	170	geom_flags |= WidthValue|HeightValue;
243	}	171	}
244	else if (!strcasecmp (arr[i], "propscale"))	172	else if (!strcasecmp (arr[i], "propscale"))
245	{	173	{
246	new_flags |= BG_KEEP_ASPECT;	174	new_flags |= IM_KEEP_ASPECT;
247	w = h = windowScale;	175	w = h = windowScale;
248	geom_flags |= WidthValue|HeightValue;	176	geom_flags |= WidthValue|HeightValue;
249	}	177	}
250	else if (!strcasecmp (arr[i], "hscale"))	178	else if (!strcasecmp (arr[i], "hscale"))
251	{	179	{
252	new_flags |= BG_TILE;	180	new_flags |= IM_TILE;
253	w = windowScale;	181	w = windowScale;
254	h = noScale;	182	h = noScale;
255	geom_flags |= WidthValue|HeightValue;	183	geom_flags |= WidthValue|HeightValue;
256	}	184	}
257	else if (!strcasecmp (arr[i], "vscale"))	185	else if (!strcasecmp (arr[i], "vscale"))
258	{	186	{
259	new_flags |= BG_TILE;	187	new_flags |= IM_TILE;
260	h = windowScale;	188	h = windowScale;
261	w = noScale;	189	w = noScale;
262	geom_flags |= WidthValue|HeightValue;	190	geom_flags |= WidthValue|HeightValue;
263	}	191	}
264	else if (!strcasecmp (arr[i], "scale"))	192	else if (!strcasecmp (arr[i], "scale"))
…		…
272	x = y = centerAlign;	200	x = y = centerAlign;
273	geom_flags |= WidthValue|HeightValue|XValue|YValue;	201	geom_flags |= WidthValue|HeightValue|XValue|YValue;
274	}	202	}
275	else if (!strcasecmp (arr[i], "root"))	203	else if (!strcasecmp (arr[i], "root"))
276	{	204	{
277	new_flags |= BG_TILE|BG_ROOT_ALIGN;	205	new_flags |= IM_TILE|IM_ROOT_ALIGN;
278	w = h = noScale;	206	w = h = noScale;
279	geom_flags |= WidthValue|HeightValue;	207	geom_flags |= WidthValue|HeightValue;
280	}	208	}
281		209
282	else	210	else
…		…
284	} /* done parsing ops */	212	} /* done parsing ops */
285		213
286	rxvt_free_strsplit (arr);	214	rxvt_free_strsplit (arr);
287	}	215	}
288		216
289	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;	217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
290		218
291	if (!update)	219	if (!update)
292	{	220	{
293	if (!(geom_flags & XValue))	221	if (!(geom_flags & XValue))
294	x = y = defaultAlign;	222	x = y = defaultAlign;
…		…
299	w = h = defaultScale;	227	w = h = defaultScale;
300	else if (!(geom_flags & HeightValue))	228	else if (!(geom_flags & HeightValue))
301	h = w;	229	h = w;
302	else if (!(geom_flags & WidthValue))	230	else if (!(geom_flags & WidthValue))
303	w = h;	231	w = h;
304
305	geom_flags |= WidthValue|HeightValue|XValue|YValue;
306	}
307
308	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
309	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
310	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
311	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
312
313	if (new_flags != bg_flags)
314	{	232	}
		233
		234	clamp_it (x, -100, 200);
		235	clamp_it (y, -100, 200);
		236
		237	if (flags != new_flags
		238	|| h_scale != w
		239	|| v_scale != h
		240	|| h_align != x
		241	|| v_align != y)
		242	{
315	bg_flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
316	changed = true;	248	changed = true;
317	}	249	}
318		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
319	return changed;	256	return changed;
320	}	257	}
321		258
322	void	259	void
323	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	260	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
324	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
325	int target_width = szHint.width;	264	int parent_width = szHint.width;
326	int target_height = szHint.height;	265	int parent_height = szHint.height;
		266	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		267	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
327		268
328	w = h_scale * target_width / 100;	269	w = h_scale * parent_width / 100;
329	h = v_scale * target_height / 100;	270	h = v_scale * parent_height / 100;
330		271
331	if (bg_flags & BG_KEEP_ASPECT)	272	if (image.flags & IM_KEEP_ASPECT)
332	{	273	{
333	float scale = (float)w / image_width;	274	float scale = (float)w / image_width;
334	min_it (scale, (float)h / image_height);	275	min_it (scale, (float)h / image_height);
335	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
336	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
337	}	278	}
338		279
339	if (!w) w = image_width;	280	if (!w) w = image_width;
340	if (!h) h = image_height;	281	if (!h) h = image_height;
341		282
342	if (bg_flags & BG_ROOT_ALIGN)	283	if (image.flags & IM_ROOT_ALIGN)
343	{	284	{
344	x = -target_x;	285	x = -parent_x;
345	y = -target_y;	286	y = -parent_y;
346	}	287	}
347	else	288	else
348	{	289	{
349	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
350	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
351	}
352
353	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
354	if (!(bg_flags & BG_TILE)
355	|| h_scale || v_scale
356	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
357	|| w > target_width || h > target_height)
358	bg_flags |= BG_IS_SIZE_SENSITIVE;
359	}
360
361	# ifdef HAVE_AFTERIMAGE
362	bool
363	rxvt_term::render_image (unsigned long tr_flags)
364	{
365	init_asv ();
366
367	ASImage *background = NULL;
368	ARGB32 background_tint = TINT_LEAVE_SAME;
369
370	# ifdef ENABLE_TRANSPARENCY
371	if (tr_flags)
372	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
373
374	if (tr_flags & BG_NEEDS_TINT)
375	{	292	}
376	ShadingInfo as_shade;	293	}
377	as_shade.shading = shade;
378		294
379	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
380	if (bg_flags & BG_TINT_SET)	296	rxvt_term::render_image (rxvt_image &image)
381	tint.get (c);	297	{
382	as_shade.tintColor.red = c.r;
383	as_shade.tintColor.green = c.g;
384	as_shade.tintColor.blue = c.b;
385
386	background_tint = shading2tint32 (&as_shade);
387	}
388
389	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
390	{
391	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
392	ASA_XImage,
393	100, ASIMAGE_QUALITY_DEFAULT);
394	if (tmp)
395	{
396	destroy_asimage (&background);
397	background = tmp;
398	}
399	}
400	# endif
401
402	ASImage *result = 0;
403
404	int target_width = szHint.width;	298	int parent_width = szHint.width;
405	int target_height = szHint.height;	299	int parent_height = szHint.height;
406	int new_pmap_width = target_width;
407	int new_pmap_height = target_height;
408		300
409	int x = 0;	301	int x = 0;
410	int y = 0;	302	int y = 0;
411	int w = 0;	303	int w = 0;
412	int h = 0;	304	int h = 0;
413		305
414	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
415	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
416		307
417	if (!original_asim
418	|| (!(bg_flags & BG_ROOT_ALIGN)
419	&& (x >= target_width
420	|| y >= target_height
421	|| x + w <= 0
422	|| y + h <= 0)))
423	{
424	if (background)
425	{
426	new_pmap_width = background->width;
427	new_pmap_height = background->height;
428	result = background;
429
430	if (background_tint != TINT_LEAVE_SAME)
431	{
432	ASImage *tmp = tile_asimage (asv, background, 0, 0,
433	target_width, target_height, background_tint,
434	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
435	if (tmp)
436	result = tmp;
437	}
438	}
439	else
440	new_pmap_width = new_pmap_height = 0;
441	}
442	else
443	{
444	result = original_asim;
445
446	if (w != original_asim->width
447	|| h != original_asim->height)
448	{
449	result = scale_asimage (asv, original_asim,
450	w, h,
451	ASA_XImage,
452	100, ASIMAGE_QUALITY_DEFAULT);
453	}
454
455	if (background == NULL)
456	{
457	if (bg_flags & BG_TILE)
458	{
459	/* if tiling - pixmap has to be sized exactly as the image,
460	but there is no need to make it bigger than the window! */
461	new_pmap_width = min (result->width, target_width);
462	new_pmap_height = min (result->height, target_height);
463
464	/* we also need to tile our image in both directions */
465	ASImage *tmp = tile_asimage (asv, result,
466	(int)result->width - x,
467	(int)result->height - y,
468	new_pmap_width,
469	new_pmap_height,
470	TINT_LEAVE_SAME, ASA_XImage,
471	100, ASIMAGE_QUALITY_DEFAULT);
472	if (tmp)
473	{
474	if (result != original_asim)
475	destroy_asimage (&result);
476
477	result = tmp;
478	}
479	}
480	}
481	else
482	{
483	/* if blending background and image - pixmap has to be sized same as target window */
484	ASImageLayer *layers = create_image_layers (2);
485
486	layers[0].im = background;
487	layers[0].clip_width = target_width;
488	layers[0].clip_height = target_height;
489	layers[0].tint = background_tint;
490	layers[1].im = result;
491
492	if (bg_flags & BG_TILE)
493	{
494	/* tile horizontally */
495	while (x > 0) x -= (int)result->width;
496	layers[1].dst_x = x;
497	layers[1].clip_width = result->width+target_width;
498	}
499	else
500	{
501	/* clip horizontally */
502	layers[1].dst_x = x;
503	layers[1].clip_width = result->width;
504	}
505
506	if (bg_flags & BG_TILE)
507	{
508	while (y > 0) y -= (int)result->height;
509	layers[1].dst_y = y;
510	layers[1].clip_height = result->height + target_height;
511	}
512	else
513	{
514	layers[1].dst_y = y;
515	layers[1].clip_height = result->height;
516	}
517
518	if (rs[Rs_blendtype])
519	{
520	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
521	if (layers[1].merge_scanlines == NULL)
522	layers[1].merge_scanlines = alphablend_scanlines;
523	}
524
525	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
526	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
527
528	if (tmp)
529	{
530	if (result != original_asim)
531	destroy_asimage (&result);
532
533	result = tmp;
534	}
535
536	free (layers);
537	}
538	}
539
540	bool ret = false;
541
542	if (result)
543	{
544	XGCValues gcv;
545	GC gc;
546
547	/* create Pixmap */
548	if (bg_pixmap == None
549	|| bg_pmap_width != new_pmap_width
550	|| bg_pmap_height != new_pmap_height)
551	{
552	if (bg_pixmap)
553	XFreePixmap (dpy, bg_pixmap);
554	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
555	bg_pmap_width = new_pmap_width;
556	bg_pmap_height = new_pmap_height;
557	}
558	/* fill with background color (if result's not completely overlapping it) */
559	gcv.foreground = pix_colors[Color_bg];
560	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
561
562	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
563	int dst_width = result->width, dst_height = result->height;
564	if (background == NULL)
565	{
566	if (!(bg_flags & BG_TILE))
567	{
568	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
569	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
570	}
571
572	if (dst_x > 0 || dst_y > 0
573	|| dst_x + dst_width < new_pmap_width
574	|| dst_y + dst_height < new_pmap_height)
575	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
576	}
577
578	/* put result on pixmap */
579	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
580	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
581
582	if (result != background && result != original_asim)
583	destroy_asimage (&result);
584
585	XFreeGC (dpy, gc);
586
587	ret = true;
588	}
589
590	if (background)
591	destroy_asimage (&background);
592
593	return ret;
594	}
595	# endif /* HAVE_AFTERIMAGE */
596
597	# ifdef HAVE_PIXBUF
598	bool
599	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
600	int src_x, int src_y, int dst_x, int dst_y,
601	unsigned int width, unsigned int height)
602	{
603	XImage *ximage;
604	char *data, *line;
605	int bytes_per_pixel;
606	int width_r, width_g, width_b;
607	int sh_r, sh_g, sh_b;
608	int rowstride;
609	int channels;
610	unsigned char *row;
611
612	if (visual->c_class != TrueColor)
613	return false;
614
615	if (depth == 24 || depth == 32)
616	bytes_per_pixel = 4;
617	else if (depth == 15 || depth == 16)
618	bytes_per_pixel = 2;
619	else
620	return false;
621
622	width_r = ecb_popcount32 (visual->red_mask);
623	width_g = ecb_popcount32 (visual->green_mask);
624	width_b = ecb_popcount32 (visual->blue_mask);
625
626	if (width_r > 8 || width_g > 8 || width_b > 8)
627	return false;
628
629	sh_r = ecb_ctz32 (visual->red_mask);
630	sh_g = ecb_ctz32 (visual->green_mask);
631	sh_b = ecb_ctz32 (visual->blue_mask);
632
633	if (width > INT_MAX / height / bytes_per_pixel)
634	return false;
635
636	data = (char *)malloc (width * height * bytes_per_pixel);
637	if (!data)
638	return false;
639
640	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
641	width, height, bytes_per_pixel * 8, 0);
642	if (!ximage)
643	{
644	free (data);
645	return false;
646	}
647
648	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
649
650	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
651	channels = gdk_pixbuf_get_n_channels (pixbuf);
652	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
653	line = data;
654
655	for (int y = 0; y < height; y++)
656	{
657	for (int x = 0; x < width; x++)
658	{
659	unsigned char *pixel = row + x * channels;
660	uint32_t value;
661
662	value = ((pixel[0] >> (8 - width_r)) << sh_r)
663	| ((pixel[1] >> (8 - width_g)) << sh_g)
664	| ((pixel[2] >> (8 - width_b)) << sh_b);
665
666	if (bytes_per_pixel == 4)
667	((uint32_t *)line)[x] = value;
668	else
669	((uint16_t *)line)[x] = value;
670	}
671
672	row += rowstride;
673	line += ximage->bytes_per_line;
674	}
675
676	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
677	XDestroyImage (ximage);
678	return true;
679	}
680
681	bool
682	rxvt_term::render_image (unsigned long tr_flags)
683	{
684	if (!pixbuf)
685	return false;
686
687	if (tr_flags
688	&& !(bg_flags & BG_HAS_RENDER))
689	return false;
690
691	GdkPixbuf *result;
692
693	int image_width = gdk_pixbuf_get_width (pixbuf);
694	int image_height = gdk_pixbuf_get_height (pixbuf);
695
696	int target_width = szHint.width;
697	int target_height = szHint.height;
698	int new_pmap_width = target_width;
699	int new_pmap_height = target_height;
700
701	int x = 0;
702	int y = 0;
703	int w = 0;
704	int h = 0;
705
706	get_image_geometry (image_width, image_height, w, h, x, y);
707
708	if (!(bg_flags & BG_ROOT_ALIGN)	308	if (!(image.flags & IM_ROOT_ALIGN)
709	&& (x >= target_width	309	&& (x >= parent_width
710	|| y >= target_height	310	|| y >= parent_height
711	|| x + w <= 0	311	|| x + w <= 0
712	|| y + h <= 0))	312	|| y + h <= 0))
713	return false;	313	return false;
714		314
715	result = pixbuf;	315	rxvt_img *img = image.img->scale (w, h);
716		316
717	if (w != image_width	317	if (image.flags & IM_TILE)
718	|| h != image_height)	318	img->repeat_mode (RepeatNormal);
719	{
720	result = gdk_pixbuf_scale_simple (pixbuf,
721	w, h,
722	GDK_INTERP_BILINEAR);
723	}
724
725	if (!result)
726	return false;
727
728	bool ret = false;
729
730	XGCValues gcv;
731	GC gc;
732	Pixmap root_pmap;
733
734	image_width = gdk_pixbuf_get_width (result);
735	image_height = gdk_pixbuf_get_height (result);
736
737	if (tr_flags)
738	{
739	root_pmap = bg_pixmap;
740	bg_pixmap = None;
741	}
742	else	319	else
743	{	320	img->repeat_mode (RepeatNone);
		321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
		322
744	if (bg_flags & BG_TILE)	323	if (bg_flags & BG_IS_VALID)
745	{
746	new_pmap_width = min (image_width, target_width);
747	new_pmap_height = min (image_height, target_height);
748	}
749	}	324	{
750		325	double factor = image.alpha * 1. / 0xffff;
751	if (bg_pixmap == None	326	bg_img->blend (img, factor)->replace (img);
752	|| bg_pmap_width != new_pmap_width
753	|| bg_pmap_height != new_pmap_height)
754	{	327	}
755	if (bg_pixmap)
756	XFreePixmap (dpy, bg_pixmap);
757	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
758	bg_pmap_width = new_pmap_width;
759	bg_pmap_height = new_pmap_height;
760	}
761		328
762	gcv.foreground = pix_colors[Color_bg];
763	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
764
765	if (gc)
766	{
767	if (bg_flags & BG_TILE)
768	{
769	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
770	pixbuf_to_pixmap (result, tile, gc,
771	0, 0,
772	0, 0,
773	image_width, image_height);
774
775	gcv.tile = tile;
776	gcv.fill_style = FillTiled;
777	gcv.ts_x_origin = x;
778	gcv.ts_y_origin = y;
779	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
780
781	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
782	XFreePixmap (dpy, tile);
783	}
784	else
785	{
786	int src_x, src_y, dst_x, dst_y;
787	int dst_width, dst_height;
788
789	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
790	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
791
792	if (dst_x > 0 || dst_y > 0
793	|| dst_x + dst_width < new_pmap_width
794	|| dst_y + dst_height < new_pmap_height)
795	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
796
797	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
798	pixbuf_to_pixmap (result, bg_pixmap, gc,
799	src_x, src_y,
800	dst_x, dst_y,
801	dst_width, dst_height);
802	}
803
804	#if XRENDER
805	if (tr_flags)
806	{
807	XRenderPictureAttributes pa;
808
809	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	329	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
810	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	330	img->convert_format (format, pix_colors [Color_bg])->replace (img);
811		331
812	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	332	delete bg_img;
813	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	333	bg_img = img;
814		334
815	pa.repeat = True;
816	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
817	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
818	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
819	XFreePixmap (dpy, mask_pmap);
820
821	XRenderColor mask_c;
822
823	mask_c.alpha = 0x8000;
824	mask_c.red = 0;
825	mask_c.green = 0;
826	mask_c.blue = 0;
827	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
828	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
829
830	XRenderFreePicture (dpy, src);
831	XRenderFreePicture (dpy, dst);
832	XRenderFreePicture (dpy, mask);
833	}
834	#endif
835
836	XFreeGC (dpy, gc);
837
838	ret = true;
839	}
840
841	if (result != pixbuf)
842	g_object_unref (result);
843
844	if (tr_flags)
845	XFreePixmap (dpy, root_pmap);
846
847	return ret;	335	return true;
848	}	336	}
849	# endif /* HAVE_PIXBUF */
850		337
851	bool	338	rxvt_image::rxvt_image ()
852	rxvt_term::bg_set_file (const char *file)	339	{
		340	alpha = 0xffff;
		341	flags = 0;
		342	h_scale =
		343	v_scale = defaultScale;
		344	h_align =
		345	v_align = defaultAlign;
		346
		347	img = 0;
		348	}
		349
		350	void
		351	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
853	{	352	{
854	if (!file || !*file)	353	if (!file || !*file)
855	return false;	354	return;
856		355
857	bool ret = false;
858	const char *p = strchr (file, ';');	356	const char *p = strchr (file, ';');
859		357
860	if (p)	358	if (p)
861	{	359	{
862	size_t len = p - file;	360	size_t len = p - file;
…		…
864	memcpy (f, file, len);	362	memcpy (f, file, len);
865	f[len] = '\0';	363	f[len] = '\0';
866	file = f;	364	file = f;
867	}	365	}
868		366
869	# ifdef HAVE_AFTERIMAGE	367	set_file (s, file);
870	if (!asimman)	368	alpha = 0x8000;
871	asimman = create_generic_imageman (rs[Rs_path]);	369	set_geometry (p ? p + 1 : "");
872	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	370	}
873	if (image)
874	{
875	if (original_asim)
876	safe_asimage_destroy (original_asim);
877	original_asim = image;
878	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
879	ret = true;
880	}
881	# endif
882		371
883	# ifdef HAVE_PIXBUF	372	void
884	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	373	rxvt_image::set_file (rxvt_screen *s, const char *file)
885	if (image)	374	{
886	{	375	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
887	if (pixbuf)	376	delete img;
888	g_object_unref (pixbuf);	377	img = img2;
889	pixbuf = image;
890	bg_flags |= BG_IS_FROM_FILE;
891	ret = true;
892	}
893	# endif
894
895	if (ret)
896	{
897	if (p)
898	bg_set_geometry (p + 1);
899	else
900	bg_set_default_geometry ();
901	}
902
903	return ret;
904	}	378	}
905		379
906	# endif /* BG_IMAGE_FROM_FILE */	380	# endif /* BG_IMAGE_FROM_FILE */
907		381
908	# ifdef ENABLE_TRANSPARENCY
909	bool	382	bool
910	rxvt_term::bg_set_transparent ()	383	image_effects::set_blur (const char *geom)
911	{
912	if (!(bg_flags & BG_IS_TRANSPARENT))
913	{
914	bg_flags |= BG_IS_TRANSPARENT;
915	return true;
916	}
917
918	return false;
919	}
920
921	bool
922	rxvt_term::bg_set_blur (const char *geom)
923	{	384	{
924	bool changed = false;	385	bool changed = false;
925	unsigned int hr, vr;	386	unsigned int hr, vr;
926	int junk;	387	int junk;
927	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	388	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
944	{	405	{
945	changed = true;	406	changed = true;
946	v_blurRadius = vr;	407	v_blurRadius = vr;
947	}	408	}
948		409
949	if (v_blurRadius == 0 && h_blurRadius == 0)
950	bg_flags &= ~BG_NEEDS_BLUR;
951	else
952	bg_flags |= BG_NEEDS_BLUR;
953
954	return changed;	410	return changed;
955	}	411	}
956		412
957	void
958	rxvt_term::set_tint_shade_flags ()
959	{
960	rgba c;
961	bool has_shade = shade != 100;
962
963	bg_flags &= ~BG_TINT_FLAGS;
964
965	if (bg_flags & BG_TINT_SET)
966	{
967	tint.get (c);
968	if (!has_shade
969	&& (c.r <= 0x00ff || c.r >= 0xff00)
970	&& (c.g <= 0x00ff || c.g >= 0xff00)
971	&& (c.b <= 0x00ff || c.b >= 0xff00))
972	bg_flags |= BG_TINT_BITAND;
973	}
974
975	if (has_shade || (bg_flags & BG_TINT_SET))
976	bg_flags |= BG_NEEDS_TINT;
977	}
978
979	bool	413	bool
980	rxvt_term::bg_set_tint (rxvt_color &new_tint)	414	image_effects::set_tint (const rxvt_color &new_tint)
981	{	415	{
982	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	416	if (!tint_set || tint != new_tint)
983	{	417	{
984	tint = new_tint;	418	tint = new_tint;
985	bg_flags |= BG_TINT_SET;	419	tint_set = true;
986	set_tint_shade_flags ();	420
987	return true;	421	return true;
988	}	422	}
989		423
990	return false;	424	return false;
991	}	425	}
992		426
993	bool	427	bool
994	rxvt_term::bg_set_shade (const char *shade_str)	428	image_effects::set_shade (const char *shade_str)
995	{	429	{
996	int new_shade = (shade_str) ? atoi (shade_str) : 100;	430	int new_shade = atoi (shade_str);
997		431
998	clamp_it (new_shade, -100, 200);	432	clamp_it (new_shade, -100, 200);
999	if (new_shade < 0)	433	if (new_shade < 0)
1000	new_shade = 200 - (100 + new_shade);	434	new_shade = 200 - (100 + new_shade);
1001		435
1002	if (new_shade != shade)	436	if (new_shade != shade)
1003	{	437	{
1004	shade = new_shade;	438	shade = new_shade;
1005	set_tint_shade_flags ();
1006	return true;	439	return true;
1007	}	440	}
1008		441
1009	return false;	442	return false;
1010	}	443	}
1011		444
1012	#if XRENDER	445	# if ENABLE_TRANSPARENCY
1013	static void
1014	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1015	{
1016	double sigma = radius / 2.0;
1017	double scale = sqrt (2.0 * M_PI) * sigma;
1018	double sum = 0.0;
1019
1020	for (int i = 0; i < width; i++)
1021	{
1022	double x = i - width / 2;
1023	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1024	sum += kernel[i];
1025	}
1026
1027	params[0] = XDoubleToFixed (width);
1028	params[1] = XDoubleToFixed (1);
1029
1030	for (int i = 0; i < width; i++)
1031	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1032	}
1033	#endif
1034
1035	bool
1036	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1037	{
1038	bool ret = false;
1039	#if XRENDER
1040	if (!(bg_flags & BG_HAS_RENDER_CONV))
1041	return false;
1042
1043	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1044	double *kernel = (double *)malloc (size * sizeof (double));
1045	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1046
1047	XRenderPictureAttributes pa;
1048	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1049
1050	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1051	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1052
1053	if (kernel && params)
1054	{
1055	if (h_blurRadius)
1056	{
1057	size = h_blurRadius * 2 + 1;
1058	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1059
1060	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1061	XRenderComposite (dpy,
1062	PictOpSrc,
1063	src,
1064	None,
1065	dst,
1066	0, 0,
1067	0, 0,
1068	0, 0,
1069	width, height);
1070	}
1071
1072	if (v_blurRadius)
1073	{
1074	size = v_blurRadius * 2 + 1;
1075	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1076	::swap (params[0], params[1]);
1077
1078	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1079	XRenderComposite (dpy,
1080	PictOpSrc,
1081	src,
1082	None,
1083	dst,
1084	0, 0,
1085	0, 0,
1086	0, 0,
1087	width, height);
1088	}
1089
1090	ret = true;
1091	}
1092
1093	free (kernel);
1094	free (params);
1095	XRenderFreePicture (dpy, src);
1096	XRenderFreePicture (dpy, dst);
1097	#endif
1098	return ret;
1099	}
1100
1101	bool
1102	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1103	{
1104	bool ret = false;
1105
1106	if (bg_flags & BG_TINT_BITAND)
1107	{
1108	XGCValues gcv;
1109	GC gc;
1110
1111	/* In this case we can tint image server-side getting significant
1112	* performance improvements, as we eliminate XImage transfer
1113	*/
1114	gcv.foreground = Pixel (tint);
1115	gcv.function = GXand;
1116	gcv.fill_style = FillSolid;
1117	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1118	if (gc)
1119	{
1120	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1121	ret = true;
1122	XFreeGC (dpy, gc);
1123	}
1124	}
1125	# if XRENDER
1126	else if (bg_flags & BG_HAS_RENDER)
1127	{
1128	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1129
1130	if (bg_flags & BG_TINT_SET)
1131	tint.get (c);
1132
1133	if (shade <= 100)
1134	{
1135	c.r = c.r * shade / 100;
1136	c.g = c.g * shade / 100;
1137	c.b = c.b * shade / 100;
1138	}
1139	else
1140	{
1141	c.r = c.r * (200 - shade) / 100;
1142	c.g = c.g * (200 - shade) / 100;
1143	c.b = c.b * (200 - shade) / 100;
1144	}
1145
1146	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1147	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1148	XRenderPictureAttributes pa;
1149
1150	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1151
1152	pa.repeat = True;
1153
1154	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1155	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1156	XFreePixmap (dpy, overlay_pmap);
1157
1158	pa.component_alpha = True;
1159	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1160	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1161	XFreePixmap (dpy, mask_pmap);
1162
1163	XRenderColor mask_c;
1164
1165	mask_c.alpha = 0xffff;
1166	mask_c.red =
1167	mask_c.green =
1168	mask_c.blue = 0;
1169	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1170
1171	mask_c.alpha = 0;
1172	mask_c.red = 0xffff - c.r;
1173	mask_c.green = 0xffff - c.g;
1174	mask_c.blue = 0xffff - c.b;
1175	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1176	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1177
1178	if (shade > 100)
1179	{
1180	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1181	mask_c.alpha = 0;
1182	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1183
1184	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1185	}
1186
1187	ret = true;
1188
1189	XRenderFreePicture (dpy, mask_pic);
1190	XRenderFreePicture (dpy, overlay_pic);
1191	XRenderFreePicture (dpy, back_pic);
1192	}
1193	# endif
1194
1195	return ret;
1196	}
1197
1198	/*	446	/*
1199	* Builds a pixmap of the same size as the terminal window that contains	447	* Builds a pixmap of the same size as the terminal window that contains
1200	* the tiled portion of the root pixmap that is supposed to be covered by	448	* the tiled portion of the root pixmap that is supposed to be covered by
1201	* our window.	449	* our window.
1202	*/	450	*/
1203	unsigned long	451	bool
1204	rxvt_term::make_transparency_pixmap ()	452	rxvt_term::render_root_image ()
1205	{	453	{
1206	unsigned long result = 0;
1207
1208	/* root dimensions may change from call to call - but Display structure should	454	/* root dimensions may change from call to call - but Display structure should
1209	* be always up-to-date, so let's use it :	455	* be always up-to-date, so let's use it :
1210	*/	456	*/
1211	int screen = display->screen;	457	int screen = display->screen;
1212	int root_depth = DefaultDepth (dpy, screen);
1213	int root_width = DisplayWidth (dpy, screen);	458	int root_width = DisplayWidth (dpy, screen);
1214	int root_height = DisplayHeight (dpy, screen);	459	int root_height = DisplayHeight (dpy, screen);
1215	unsigned int root_pmap_width, root_pmap_height;
1216	int window_width = szHint.width;	460	int parent_width = szHint.width;
1217	int window_height = szHint.height;	461	int parent_height = szHint.height;
1218	int sx, sy;	462	int sx, sy;
1219	XGCValues gcv;
1220	GC gc;
1221		463
1222	sx = target_x;	464	sx = parent_x;
1223	sy = target_y;	465	sy = parent_y;
		466
		467	if (!root_img)
		468	return false;
1224		469
1225	/* check if we are outside of the visible part of the virtual screen : */	470	/* check if we are outside of the visible part of the virtual screen : */
1226	if (sx + window_width <= 0 || sy + window_height <= 0	471	if (sx + parent_width <= 0 || sy + parent_height <= 0
1227	|| sx >= root_width || sy >= root_height)	472	|| sx >= root_width || sy >= root_height)
1228	return 0;	473	return 0;
1229		474
1230	// validate root pixmap and get its size	475	while (sx < 0) sx += root_img->w;
1231	if (root_pixmap != None)	476	while (sy < 0) sy += root_img->h;
1232	{
1233	Window wdummy;
1234	int idummy;
1235	unsigned int udummy;
1236		477
1237	allowedxerror = -1;	478	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1238		479
1239	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	480	if (root_effects.need_blur ())
1240	root_pixmap = None;	481	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1241		482
1242	allowedxerror = 0;	483	if (root_effects.need_tint ())
1243	}	484	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1244		485
1245	Pixmap recoded_root_pmap = root_pixmap;
1246
1247	if (root_pixmap != None && root_depth != depth)
1248	{
1249	#if XRENDER
1250	if (bg_flags & BG_HAS_RENDER)
1251	{
1252	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1253
1254	XRenderPictureAttributes pa;
1255
1256	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1257	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1258
1259	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	486	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1260	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	487	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1261		488
1262	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	489	delete bg_img;
		490	bg_img = img;
1263		491
1264	XRenderFreePicture (dpy, src);
1265	XRenderFreePicture (dpy, dst);
1266	}
1267	else
1268	#endif
1269	recoded_root_pmap = None;
1270	}
1271
1272	if (recoded_root_pmap == None)
1273	return 0;
1274
1275	if (bg_pixmap == None
1276	|| bg_pmap_width != window_width
1277	|| bg_pmap_height != window_height)
1278	{
1279	if (bg_pixmap)
1280	XFreePixmap (dpy, bg_pixmap);
1281	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1282	bg_pmap_width = window_width;
1283	bg_pmap_height = window_height;
1284	}
1285
1286	/* straightforward pixmap copy */
1287	while (sx < 0) sx += root_pmap_width;
1288	while (sy < 0) sy += root_pmap_height;
1289
1290	gcv.tile = recoded_root_pmap;
1291	gcv.fill_style = FillTiled;
1292	gcv.ts_x_origin = -sx;
1293	gcv.ts_y_origin = -sy;
1294	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1295
1296	if (gc)
1297	{
1298	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1299	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1300	XFreeGC (dpy, gc);
1301
1302	if (!(bg_flags & BG_CLIENT_RENDER))
1303	{
1304	if (bg_flags & BG_NEEDS_BLUR)
1305	{
1306	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1307	result &= ~BG_NEEDS_BLUR;
1308	}
1309	if (bg_flags & BG_NEEDS_TINT)
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	if (recoded_root_pmap != root_pixmap)
1318	XFreePixmap (dpy, recoded_root_pmap);
1319
1320	return result;	492	return true;
1321	}	493	}
1322		494
1323	void	495	void
1324	rxvt_term::bg_set_root_pixmap ()	496	rxvt_term::bg_set_root_pixmap ()
1325	{	497	{
1326	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	498	delete root_img;
1327	if (new_root_pixmap == None)	499	root_img = rxvt_img::new_from_root (this);
1328	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1329
1330	root_pixmap = new_root_pixmap;
1331	}	500	}
1332	# endif /* ENABLE_TRANSPARENCY */	501	# endif /* ENABLE_TRANSPARENCY */
1333		502
1334	bool	503	void
1335	rxvt_term::bg_render ()	504	rxvt_term::bg_render ()
1336	{	505	{
1337	unsigned long tr_flags = 0;	506	if (bg_flags & BG_INHIBIT_RENDER)
		507	return;
1338		508
1339	bg_invalidate ();	509	bg_invalidate ();
1340	# ifdef ENABLE_TRANSPARENCY	510	# if ENABLE_TRANSPARENCY
1341	if (bg_flags & BG_IS_TRANSPARENT)	511	if (bg_flags & BG_IS_TRANSPARENT)
1342	{	512	{
1343	/* we need to re-generate transparency pixmap in that case ! */	513	/* we need to re-generate transparency pixmap in that case ! */
1344	tr_flags = make_transparency_pixmap ();
1345	if (tr_flags == 0)
1346	return false;
1347	bg_flags |= BG_IS_VALID;
1348	}
1349	# endif
1350
1351	# ifdef BG_IMAGE_FROM_FILE
1352	if ((bg_flags & BG_IS_FROM_FILE)
1353	|| (tr_flags & BG_EFFECTS_FLAGS))
1354	{
1355	if (render_image (tr_flags))	514	if (render_root_image ())
1356	bg_flags |= BG_IS_VALID;	515	bg_flags |= BG_IS_VALID;
1357	}	516	}
1358	# endif	517	# endif
1359		518
1360	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	519	# if BG_IMAGE_FROM_FILE
1361	XImage *result = NULL;	520	if (fimage.img)
1362
1363	if (tr_flags & BG_NEEDS_TINT)
1364	{
1365	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1366	}	521	{
1367		522	if (render_image (fimage))
1368	if (result)	523	bg_flags |= BG_IS_VALID;
1369	{
1370	/* our own client-side tinting */
1371	//if (tr_flags & BG_NEEDS_TINT)
1372	if (1)
1373	tint_ximage (DefaultVisual (dpy, display->screen), result);
1374
1375	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1376
1377	if (gc)
1378	{
1379	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1380
1381	XFreeGC (dpy, gc);
1382	}
1383
1384	XDestroyImage (result);
1385	}	524	}
1386	# endif	525	# endif
1387		526
1388	if (!(bg_flags & BG_IS_VALID))	527	if (!(bg_flags & BG_IS_VALID))
1389	{	528	{
1390	if (bg_pixmap != None)	529	delete bg_img;
1391	{	530	bg_img = 0;
1392	XFreePixmap (dpy, bg_pixmap);
1393	bg_pixmap = None;
1394	}
1395	}	531	}
1396		532
1397	scr_recolour (false);	533	scr_recolour (false);
1398	bg_flags |= BG_NEEDS_REFRESH;	534	bg_flags |= BG_NEEDS_REFRESH;
1399		535
1400	bg_valid_since = ev::now ();	536	bg_valid_since = ev::now ();
1401
1402	return true;
1403	}	537	}
1404		538
1405	void	539	void
1406	rxvt_term::bg_init ()	540	rxvt_term::bg_init ()
1407	{	541	{
1408	#ifdef ENABLE_TRANSPARENCY	542	#if ENABLE_TRANSPARENCY
1409	shade = 100;	543	if (option (Opt_transparent))
		544	{
		545	bg_set_transparent ();
		546
		547	if (rs [Rs_blurradius])
		548	root_effects.set_blur (rs [Rs_blurradius]);
		549
		550	if (ISSET_PIXCOLOR (Color_tint))
		551	root_effects.set_tint (pix_colors_focused [Color_tint]);
		552
		553	if (rs [Rs_shade])
		554	root_effects.set_shade (rs [Rs_shade]);
		555
		556	bg_set_root_pixmap ();
		557	XSelectInput (dpy, display->root, PropertyChangeMask);
		558	rootwin_ev.start (display, display->root);
		559	}
1410	#endif	560	#endif
1411		561
1412	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	562	#if BG_IMAGE_FROM_FILE
1413	#if XRENDER	563	if (rs[Rs_backgroundPixmap])
1414	int major, minor;
1415	if (XRenderQueryVersion (dpy, &major, &minor))
1416	bg_flags |= BG_HAS_RENDER;
1417	XFilters *filters = XRenderQueryFilters (dpy, vt);
1418	if (filters)
1419	{	564	{
1420	for (int i = 0; i < filters->nfilter; i++)	565	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1421	if (!strcmp (filters->filter[i], FilterConvolution))	566	if (!bg_window_position_sensitive ())
1422	bg_flags |= BG_HAS_RENDER_CONV;	567	update_background ();
1423
1424	XFree (filters);
1425	}	568	}
1426	#endif	569	#endif
1427	}	570	}
1428		571
1429	#endif /* HAVE_BG_PIXMAP */
1430
1431	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1432	/* based on code from aterm-0.4.2 */
1433
1434	static inline void
1435	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1436	{
1437	for (int i = 0; i <= mask >> sh; i++)
1438	{
1439	uint32_t tmp;
1440	tmp = i * high;
1441	tmp += (mask >> sh) * low;
1442	lookup[i] = (tmp / 0xffff) << sh;
1443	}
1444	}
1445
1446	void	572	void
1447	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)	573	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1448	{	574	{
1449	int sh_r, sh_g, sh_b;
1450	uint32_t mask_r, mask_g, mask_b;
1451	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1452	unsigned short low;
1453	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1454
1455	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1456
1457	/* for convenience */
1458	mask_r = visual->red_mask;
1459	mask_g = visual->green_mask;
1460	mask_b = visual->blue_mask;
1461
1462	/* boring lookup table pre-initialization */
1463	switch (ximage->depth)
1464	{
1465	case 15:
1466	if ((mask_r != 0x7c00) ||
1467	(mask_g != 0x03e0) ||
1468	(mask_b != 0x001f))
1469	return;
1470	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1471	lookup_r = lookup;
1472	lookup_g = lookup+32;
1473	lookup_b = lookup+32+32;
1474	sh_r = 10;
1475	sh_g = 5;
1476	sh_b = 0;
1477	break;
1478	case 16:
1479	if ((mask_r != 0xf800) ||
1480	(mask_g != 0x07e0) ||
1481	(mask_b != 0x001f))
1482	return;
1483	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1484	lookup_r = lookup;
1485	lookup_g = lookup+32;
1486	lookup_b = lookup+32+64;
1487	sh_r = 11;
1488	sh_g = 5;
1489	sh_b = 0;
1490	break;
1491	case 24:
1492	if ((mask_r != 0xff0000) ||
1493	(mask_g != 0x00ff00) ||
1494	(mask_b != 0x0000ff))
1495	return;
1496	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1497	lookup_r = lookup;
1498	lookup_g = lookup+256;
1499	lookup_b = lookup+256+256;
1500	sh_r = 16;
1501	sh_g = 8;
1502	sh_b = 0;
1503	break;
1504	case 32:
1505	if ((mask_r != 0xff0000) ||
1506	(mask_g != 0x00ff00) ||
1507	(mask_b != 0x0000ff))
1508	return;
1509	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1510	lookup_r = lookup;
1511	lookup_g = lookup+256;
1512	lookup_b = lookup+256+256;
1513	sh_r = 16;
1514	sh_g = 8;
1515	sh_b = 0;
1516	break;
1517	default:
1518	return; /* we do not support this color depth */
1519	}
1520
1521	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	575	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1522		576
1523	if (bg_flags & BG_TINT_SET)	577	if (tint_set)
1524	tint.get (c);	578	tint.get (c);
1525		579
1526	/* prepare limits for color transformation (each channel is handled separately) */
1527	if (shade > 100)	580	if (shade > 100)
1528	{	581	{
1529	c.r = c.r * (200 - shade) / 100;	582	c.r = c.r * (200 - shade) / 100;
1530	c.g = c.g * (200 - shade) / 100;	583	c.g = c.g * (200 - shade) / 100;
1531	c.b = c.b * (200 - shade) / 100;	584	c.b = c.b * (200 - shade) / 100;
1532
1533	low = 0xffff * (shade - 100) / 100;
1534	}	585	}
1535	else	586	else
1536	{	587	{
1537	c.r = c.r * shade / 100;	588	c.r = c.r * shade / 100;
1538	c.g = c.g * shade / 100;	589	c.g = c.g * shade / 100;
1539	c.b = c.b * shade / 100;	590	c.b = c.b * shade / 100;
1540
1541	low = 0;
1542	}
1543
1544	/* fill our lookup tables */
1545	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1546	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1547	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1548
1549	/* apply table to input image (replacing colors by newly calculated ones) */
1550	if (ximage->bits_per_pixel == 32
1551	&& (ximage->depth == 24 || ximage->depth == 32)
1552	&& ximage->byte_order == host_byte_order)
1553	{	591	}
1554	uint32_t *p1, *pf, *p, *pl;
1555	p1 = (uint32_t *) ximage->data;
1556	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1557		592
1558	while (p1 < pf)	593	img->contrast (c.r, c.g, c.b, c.a);
1559	{	594
1560	p = p1;	595	if (shade > 100)
1561	pl = p1 + ximage->width;
1562	for (; p < pl; p++)
1563	{
1564	*p = lookup_r[(*p & 0xff0000) >> 16] |
1565	lookup_g[(*p & 0x00ff00) >> 8] |
1566	lookup_b[(*p & 0x0000ff)] |
1567	(*p & 0xff000000);
1568	}
1569	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1570	}
1571	}	596	{
1572	else	597	c.a = 0xffff;
		598	c.r =
		599	c.g =
		600	c.b = 0xffff * (shade - 100) / 100;
		601	img->brightness (c.r, c.g, c.b, c.a);
1573	{	602	}
1574	for (int y = 0; y < ximage->height; y++)
1575	for (int x = 0; x < ximage->width; x++)
1576	{
1577	unsigned long pixel = XGetPixel (ximage, x, y);
1578	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1579	lookup_g[(pixel & mask_g) >> sh_g] |
1580	lookup_b[(pixel & mask_b) >> sh_b];
1581	XPutPixel (ximage, x, y, pixel);
1582	}
1583	}
1584
1585	free (lookup);
1586	}	603	}
1587	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	604
		605	#endif /* HAVE_BG_PIXMAP */

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