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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.184 by sf-exg, Sun Dec 25 17:07:00 2011 UTC vs.
Revision 1.240 by sf-exg, Mon Jun 11 13:23:01 2012 UTC

…		…
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
20	* You should have received a copy of the GNU General Public License	20	* You should have received a copy of the GNU General Public License
21	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
24		24
25	#include <cmath>
26	#include "../config.h" /* NECESSARY */	25	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	26	#include "rxvt.h" /* NECESSARY */
28		27
29	#if XRENDER
30	# include <X11/extensions/Xrender.h>
31	#endif
32
33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"
35	#endif
36
37	#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 = bg_flags & ~BG_GEOMETRY_FLAGS;	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
283	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);	211	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
284	} /* done parsing ops */	212	} /* done parsing ops */
285		213
286	rxvt_free_strsplit (arr);	214	rxvt_free_strsplit (arr);
287	}	215	}
		216
		217	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
288		218
289	if (!update)	219	if (!update)
290	{	220	{
291	if (!(geom_flags & XValue))	221	if (!(geom_flags & XValue))
292	x = y = defaultAlign;	222	x = y = defaultAlign;
…		…
297	w = h = defaultScale;	227	w = h = defaultScale;
298	else if (!(geom_flags & HeightValue))	228	else if (!(geom_flags & HeightValue))
299	h = w;	229	h = w;
300	else if (!(geom_flags & WidthValue))	230	else if (!(geom_flags & WidthValue))
301	w = h;	231	w = h;
302
303	geom_flags |= WidthValue|HeightValue|XValue|YValue;
304	}
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	{	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	{
313	bg_flags = new_flags;	243	flags = new_flags;
		244	h_scale = w;
		245	v_scale = h;
		246	h_align = x;
		247	v_align = y;
314	changed = true;	248	changed = true;
315	}	249	}
316		250
		251	if (is_size_sensitive ())
		252	flags |= IM_IS_SIZE_SENSITIVE;
		253	else
		254	flags &= ~IM_IS_SIZE_SENSITIVE;
		255
317	return changed;	256	return changed;
318	}	257	}
319		258
320	void	259	void
321	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)
322	{	261	{
		262	int image_width = image.img->w;
		263	int image_height = image.img->h;
323	int target_width = szHint.width;	264	int parent_width = szHint.width;
324	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);
325		268
326	w = h_scale * target_width / 100;	269	w = h_scale * parent_width / 100;
327	h = v_scale * target_height / 100;	270	h = v_scale * parent_height / 100;
328		271
329	if (bg_flags & BG_KEEP_ASPECT)	272	if (image.flags & IM_KEEP_ASPECT)
330	{	273	{
331	float scale = (float)w / image_width;	274	float scale = (float)w / image_width;
332	min_it (scale, (float)h / image_height);	275	min_it (scale, (float)h / image_height);
333	w = image_width * scale + 0.5;	276	w = image_width * scale + 0.5;
334	h = image_height * scale + 0.5;	277	h = image_height * scale + 0.5;
335	}	278	}
336		279
337	if (!w) w = image_width;	280	if (!w) w = image_width;
338	if (!h) h = image_height;	281	if (!h) h = image_height;
339		282
340	if (bg_flags & BG_ROOT_ALIGN)	283	if (image.flags & IM_ROOT_ALIGN)
341	{	284	{
342	x = -target_x;	285	x = -parent_x;
343	y = -target_y;	286	y = -parent_y;
344	}	287	}
345	else	288	else
346	{	289	{
347	x = make_align_position (h_align, target_width, w);	290	x = make_align_position (image.h_align, parent_width, w);
348	y = make_align_position (v_align, target_height, h);	291	y = make_align_position (image.v_align, parent_height, h);
349	}
350
351	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
352	if (!(bg_flags & BG_TILE)
353	|| h_scale || v_scale
354	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
355	|| w > target_width || h > target_height)
356	bg_flags |= BG_IS_SIZE_SENSITIVE;
357	}
358
359	# ifdef HAVE_AFTERIMAGE
360	bool
361	rxvt_term::render_image (unsigned long tr_flags)
362	{
363	init_asv ();
364
365	ASImage *background = NULL;
366	ARGB32 background_tint = TINT_LEAVE_SAME;
367
368	# ifdef ENABLE_TRANSPARENCY
369	if (tr_flags)
370	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
371
372	if (tr_flags & BG_NEEDS_TINT)
373	{	292	}
374	ShadingInfo as_shade;	293	}
375	as_shade.shading = shade;
376		294
377	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	295	bool
378	if (bg_flags & BG_TINT_SET)	296	rxvt_term::render_image (rxvt_image &image)
379	tint.get (c);	297	{
380	as_shade.tintColor.red = c.r;
381	as_shade.tintColor.green = c.g;
382	as_shade.tintColor.blue = c.b;
383
384	background_tint = shading2tint32 (&as_shade);
385	}
386
387	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
388	{
389	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
390	ASA_XImage,
391	100, ASIMAGE_QUALITY_DEFAULT);
392	if (tmp)
393	{
394	destroy_asimage (&background);
395	background = tmp;
396	}
397	}
398	# endif
399
400	ASImage *result = 0;
401
402	int target_width = szHint.width;	298	int parent_width = szHint.width;
403	int target_height = szHint.height;	299	int parent_height = szHint.height;
404	int new_pmap_width = target_width;
405	int new_pmap_height = target_height;
406		300
407	int x = 0;	301	int x = 0;
408	int y = 0;	302	int y = 0;
409	int w = 0;	303	int w = 0;
410	int h = 0;	304	int h = 0;
411		305
412	if (original_asim)	306	get_image_geometry (image, w, h, x, y);
413	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
414		307
415	if (!original_asim
416	|| (!(bg_flags & BG_ROOT_ALIGN)
417	&& (x >= target_width
418	|| y >= target_height
419	|| x + w <= 0
420	|| y + h <= 0)))
421	{
422	if (background)
423	{
424	new_pmap_width = background->width;
425	new_pmap_height = background->height;
426	result = background;
427
428	if (background_tint != TINT_LEAVE_SAME)
429	{
430	ASImage *tmp = tile_asimage (asv, background, 0, 0,
431	target_width, target_height, background_tint,
432	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
433	if (tmp)
434	result = tmp;
435	}
436	}
437	else
438	new_pmap_width = new_pmap_height = 0;
439	}
440	else
441	{
442	result = original_asim;
443
444	if (w != original_asim->width
445	|| h != original_asim->height)
446	{
447	result = scale_asimage (asv, original_asim,
448	w, h,
449	ASA_XImage,
450	100, ASIMAGE_QUALITY_DEFAULT);
451	}
452
453	if (background == NULL)
454	{
455	if (bg_flags & BG_TILE)
456	{
457	/* if tiling - pixmap has to be sized exactly as the image,
458	but there is no need to make it bigger than the window! */
459	new_pmap_width = min (result->width, target_width);
460	new_pmap_height = min (result->height, target_height);
461
462	/* we also need to tile our image in both directions */
463	ASImage *tmp = tile_asimage (asv, result,
464	(int)result->width - x,
465	(int)result->height - y,
466	new_pmap_width,
467	new_pmap_height,
468	TINT_LEAVE_SAME, ASA_XImage,
469	100, ASIMAGE_QUALITY_DEFAULT);
470	if (tmp)
471	{
472	if (result != original_asim)
473	destroy_asimage (&result);
474
475	result = tmp;
476	}
477	}
478	}
479	else
480	{
481	/* if blending background and image - pixmap has to be sized same as target window */
482	ASImageLayer *layers = create_image_layers (2);
483
484	layers[0].im = background;
485	layers[0].clip_width = target_width;
486	layers[0].clip_height = target_height;
487	layers[0].tint = background_tint;
488	layers[1].im = result;
489
490	if (bg_flags & BG_TILE)
491	{
492	/* tile horizontally */
493	while (x > 0) x -= (int)result->width;
494	layers[1].dst_x = x;
495	layers[1].clip_width = result->width+target_width;
496	}
497	else
498	{
499	/* clip horizontally */
500	layers[1].dst_x = x;
501	layers[1].clip_width = result->width;
502	}
503
504	if (bg_flags & BG_TILE)
505	{
506	while (y > 0) y -= (int)result->height;
507	layers[1].dst_y = y;
508	layers[1].clip_height = result->height + target_height;
509	}
510	else
511	{
512	layers[1].dst_y = y;
513	layers[1].clip_height = result->height;
514	}
515
516	if (rs[Rs_blendtype])
517	{
518	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
519	if (layers[1].merge_scanlines == NULL)
520	layers[1].merge_scanlines = alphablend_scanlines;
521	}
522
523	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
524	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
525
526	if (tmp)
527	{
528	if (result != original_asim)
529	destroy_asimage (&result);
530
531	result = tmp;
532	}
533
534	free (layers);
535	}
536	}
537
538	bool ret = false;
539
540	if (result)
541	{
542	XGCValues gcv;
543	GC gc;
544
545	/* create Pixmap */
546	if (bg_pixmap == None
547	|| bg_pmap_width != new_pmap_width
548	|| bg_pmap_height != new_pmap_height)
549	{
550	if (bg_pixmap)
551	XFreePixmap (dpy, bg_pixmap);
552	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
553	bg_pmap_width = new_pmap_width;
554	bg_pmap_height = new_pmap_height;
555	}
556	/* fill with background color (if result's not completely overlapping it) */
557	gcv.foreground = pix_colors[Color_bg];
558	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
559
560	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
561	int dst_width = result->width, dst_height = result->height;
562	if (background == NULL)
563	{
564	if (!(bg_flags & BG_TILE))
565	{
566	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
567	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
568	}
569
570	if (dst_x > 0 || dst_y > 0
571	|| dst_x + dst_width < new_pmap_width
572	|| dst_y + dst_height < new_pmap_height)
573	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
574	}
575
576	/* put result on pixmap */
577	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
578	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
579
580	if (result != background && result != original_asim)
581	destroy_asimage (&result);
582
583	XFreeGC (dpy, gc);
584
585	ret = true;
586	}
587
588	if (background)
589	destroy_asimage (&background);
590
591	return ret;
592	}
593	# endif /* HAVE_AFTERIMAGE */
594
595	# ifdef HAVE_PIXBUF
596	bool
597	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
598	int src_x, int src_y, int dst_x, int dst_y,
599	unsigned int width, unsigned int height)
600	{
601	XImage *ximage;
602	char *data, *line;
603	int bytes_per_pixel;
604	int width_r, width_g, width_b;
605	int sh_r, sh_g, sh_b;
606	int rowstride;
607	int channels;
608	unsigned char *row;
609
610	if (visual->c_class != TrueColor)
611	return false;
612
613	if (depth == 24 || depth == 32)
614	bytes_per_pixel = 4;
615	else if (depth == 15 || depth == 16)
616	bytes_per_pixel = 2;
617	else
618	return false;
619
620	width_r = ecb_popcount32 (visual->red_mask);
621	width_g = ecb_popcount32 (visual->green_mask);
622	width_b = ecb_popcount32 (visual->blue_mask);
623
624	if (width_r > 8 || width_g > 8 || width_b > 8)
625	return false;
626
627	sh_r = ecb_ctz32 (visual->red_mask);
628	sh_g = ecb_ctz32 (visual->green_mask);
629	sh_b = ecb_ctz32 (visual->blue_mask);
630
631	if (width > INT_MAX / height / bytes_per_pixel)
632	return false;
633
634	data = (char *)malloc (width * height * bytes_per_pixel);
635	if (!data)
636	return false;
637
638	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
639	width, height, bytes_per_pixel * 8, 0);
640	if (!ximage)
641	{
642	free (data);
643	return false;
644	}
645
646	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
647
648	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
649	channels = gdk_pixbuf_get_n_channels (pixbuf);
650	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
651	line = data;
652
653	for (int y = 0; y < height; y++)
654	{
655	for (int x = 0; x < width; x++)
656	{
657	unsigned char *pixel = row + x * channels;
658	uint32_t value;
659
660	value = ((pixel[0] >> (8 - width_r)) << sh_r)
661	| ((pixel[1] >> (8 - width_g)) << sh_g)
662	| ((pixel[2] >> (8 - width_b)) << sh_b);
663
664	if (bytes_per_pixel == 4)
665	((uint32_t *)line)[x] = value;
666	else
667	((uint16_t *)line)[x] = value;
668	}
669
670	row += rowstride;
671	line += ximage->bytes_per_line;
672	}
673
674	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
675	XDestroyImage (ximage);
676	return true;
677	}
678
679	bool
680	rxvt_term::render_image (unsigned long tr_flags)
681	{
682	if (!pixbuf)
683	return false;
684
685	if (tr_flags
686	&& !(bg_flags & BG_HAS_RENDER))
687	return false;
688
689	GdkPixbuf *result;
690
691	int image_width = gdk_pixbuf_get_width (pixbuf);
692	int image_height = gdk_pixbuf_get_height (pixbuf);
693
694	int target_width = szHint.width;
695	int target_height = szHint.height;
696	int new_pmap_width = target_width;
697	int new_pmap_height = target_height;
698
699	int x = 0;
700	int y = 0;
701	int w = 0;
702	int h = 0;
703
704	get_image_geometry (image_width, image_height, w, h, x, y);
705
706	if (!(bg_flags & BG_ROOT_ALIGN)	308	if (!(image.flags & IM_ROOT_ALIGN)
707	&& (x >= target_width	309	&& (x >= parent_width
708	|| y >= target_height	310	|| y >= parent_height
709	|| x + w <= 0	311	|| x + w <= 0
710	|| y + h <= 0))	312	|| y + h <= 0))
711	return false;	313	return false;
712		314
713	result = pixbuf;	315	rxvt_img *img = image.img->scale (w, h);
714		316
715	if (w != image_width	317	if (image.flags & IM_TILE)
716	|| h != image_height)	318	img->repeat_mode (RepeatNormal);
717	{
718	result = gdk_pixbuf_scale_simple (pixbuf,
719	w, h,
720	GDK_INTERP_BILINEAR);
721	}
722
723	if (!result)
724	return false;
725
726	bool ret = false;
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	319	else
741	{	320	img->repeat_mode (RepeatNone);
		321	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
		322
742	if (bg_flags & BG_TILE)	323	if (bg_flags & BG_IS_VALID)
743	{
744	new_pmap_width = min (image_width, target_width);
745	new_pmap_height = min (image_height, target_height);
746	}
747	}	324	{
748		325	double factor = image.alpha * 1. / 0xffff;
749	if (bg_pixmap == None	326	bg_img->blend (img, factor)->replace (img);
750	|| bg_pmap_width != new_pmap_width
751	|| bg_pmap_height != new_pmap_height)
752	{	327	}
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		328
760	gcv.foreground = pix_colors[Color_bg];
761	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
762
763	if (gc)
764	{
765	if (bg_flags & BG_TILE)
766	{
767	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
768	pixbuf_to_pixmap (result, tile, gc,
769	0, 0,
770	0, 0,
771	image_width, image_height);
772
773	gcv.tile = tile;
774	gcv.fill_style = FillTiled;
775	gcv.ts_x_origin = x;
776	gcv.ts_y_origin = y;
777	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
778
779	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
780	XFreePixmap (dpy, tile);
781	}
782	else
783	{
784	int src_x, src_y, dst_x, dst_y;
785	int dst_width, dst_height;
786
787	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
788	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
789
790	if (dst_x > 0 || dst_y > 0
791	|| dst_x + dst_width < new_pmap_width
792	|| dst_y + dst_height < new_pmap_height)
793	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
794
795	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
796	pixbuf_to_pixmap (result, bg_pixmap, gc,
797	src_x, src_y,
798	dst_x, dst_y,
799	dst_width, dst_height);
800	}
801
802	#if XRENDER
803	if (tr_flags)
804	{
805	XRenderPictureAttributes pa;
806
807	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	329	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
808	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	330	img->convert_format (format, pix_colors [Color_bg])->replace (img);
809		331
810	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	332	delete bg_img;
811	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	333	bg_img = img;
812		334
813	pa.repeat = True;
814	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
815	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
816	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
817	XFreePixmap (dpy, mask_pmap);
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	XRenderFreePicture (dpy, src);
829	XRenderFreePicture (dpy, dst);
830	XRenderFreePicture (dpy, mask);
831	}
832	#endif
833
834	XFreeGC (dpy, gc);
835
836	ret = true;
837	}
838
839	if (result != pixbuf)
840	g_object_unref (result);
841
842	if (tr_flags)
843	XFreePixmap (dpy, root_pmap);
844
845	return ret;	335	return true;
846	}	336	}
847	# endif /* HAVE_PIXBUF */
848		337
		338	rxvt_image::rxvt_image ()
		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
849	bool	350	bool
850	rxvt_term::bg_set_file (const char *file)	351	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
851	{	352	{
852	if (!file || !*file)	353	if (!file || !*file)
853	return false;	354	return false;
854		355
855	bool ret = false;
856	const char *p = strchr (file, ';');	356	const char *p = strchr (file, ';');
857		357
858	if (p)	358	if (p)
859	{	359	{
860	size_t len = p - file;	360	size_t len = p - file;
…		…
862	memcpy (f, file, len);	362	memcpy (f, file, len);
863	f[len] = '\0';	363	f[len] = '\0';
864	file = f;	364	file = f;
865	}	365	}
866		366
867	# ifdef HAVE_AFTERIMAGE	367	bool ret = set_file (s, file);
868	if (!asimman)	368	alpha = 0x8000;
869	asimman = create_generic_imageman (rs[Rs_path]);
870	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
871	if (image)
872	{
873	if (original_asim)
874	safe_asimage_destroy (original_asim);
875	original_asim = image;
876	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
877	ret = true;
878	}
879	# endif
880
881	# ifdef HAVE_PIXBUF
882	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
883	if (image)
884	{
885	if (pixbuf)
886	g_object_unref (pixbuf);
887	pixbuf = image;
888	bg_flags |= BG_IS_FROM_FILE;
889	ret = true;
890	}
891	# endif
892
893	if (ret)	369	if (ret)
894	{
895	if (p)
896	bg_set_geometry (p + 1);	370	set_geometry (p ? p + 1 : "");
897	else
898	bg_set_default_geometry ();
899	}
900
901	return ret;	371	return ret;
902	}	372	}
903		373
		374	bool
		375	rxvt_image::set_file (rxvt_screen *s, const char *file)
		376	{
		377	delete img;
		378	img = rxvt_img::new_from_file (s, file);
		379	return img != 0;
		380	}
		381
904	# endif /* BG_IMAGE_FROM_FILE */	382	# endif /* BG_IMAGE_FROM_FILE */
905		383
906	# ifdef ENABLE_TRANSPARENCY
907	bool	384	bool
908	rxvt_term::bg_set_transparent ()	385	image_effects::set_blur (const char *geom)
909	{
910	if (!(bg_flags & BG_IS_TRANSPARENT))
911	{
912	bg_flags |= BG_IS_TRANSPARENT;
913	return true;
914	}
915
916	return false;
917	}
918
919	bool
920	rxvt_term::bg_set_blur (const char *geom)
921	{	386	{
922	bool changed = false;	387	bool changed = false;
923	unsigned int hr, vr;	388	unsigned int hr, vr;
924	int junk;	389	int junk;
925	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	390	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
942	{	407	{
943	changed = true;	408	changed = true;
944	v_blurRadius = vr;	409	v_blurRadius = vr;
945	}	410	}
946		411
947	if (v_blurRadius == 0 && h_blurRadius == 0)
948	bg_flags &= ~BG_NEEDS_BLUR;
949	else
950	bg_flags |= BG_NEEDS_BLUR;
951
952	return changed;	412	return changed;
953	}	413	}
954		414
955	void
956	rxvt_term::set_tint_shade_flags ()
957	{
958	rgba c;
959	bool has_shade = shade != 100;
960
961	bg_flags &= ~BG_TINT_FLAGS;
962
963	if (bg_flags & BG_TINT_SET)
964	{
965	tint.get (c);
966	if (!has_shade
967	&& (c.r <= 0x00ff || c.r >= 0xff00)
968	&& (c.g <= 0x00ff || c.g >= 0xff00)
969	&& (c.b <= 0x00ff || c.b >= 0xff00))
970	bg_flags |= BG_TINT_BITAND;
971	}
972
973	if (has_shade || (bg_flags & BG_TINT_SET))
974	bg_flags |= BG_NEEDS_TINT;
975	}
976
977	bool	415	bool
978	rxvt_term::bg_set_tint (rxvt_color &new_tint)	416	image_effects::set_tint (const rxvt_color &new_tint)
979	{	417	{
980	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	418	if (!tint_set || tint != new_tint)
981	{	419	{
982	tint = new_tint;	420	tint = new_tint;
983	bg_flags |= BG_TINT_SET;	421	tint_set = true;
984	set_tint_shade_flags ();	422
985	return true;	423	return true;
986	}	424	}
987		425
988	return false;	426	return false;
989	}	427	}
990		428
991	bool	429	bool
992	rxvt_term::bg_set_shade (const char *shade_str)	430	image_effects::set_shade (const char *shade_str)
993	{	431	{
994	int new_shade = (shade_str) ? atoi (shade_str) : 100;	432	int new_shade = atoi (shade_str);
995		433
996	clamp_it (new_shade, -100, 200);	434	clamp_it (new_shade, -100, 200);
997	if (new_shade < 0)	435	if (new_shade < 0)
998	new_shade = 200 - (100 + new_shade);	436	new_shade = 200 - (100 + new_shade);
999		437
1000	if (new_shade != shade)	438	if (new_shade != shade)
1001	{	439	{
1002	shade = new_shade;	440	shade = new_shade;
1003	set_tint_shade_flags ();
1004	return true;	441	return true;
1005	}	442	}
1006		443
1007	return false;	444	return false;
1008	}	445	}
1009		446
1010	#if XRENDER	447	# if ENABLE_TRANSPARENCY
1011	static void
1012	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1013	{
1014	double sigma = radius / 2.0;
1015	double scale = sqrt (2.0 * M_PI) * sigma;
1016	double sum = 0.0;
1017
1018	for (int i = 0; i < width; i++)
1019	{
1020	double x = i - width / 2;
1021	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1022	sum += kernel[i];
1023	}
1024
1025	params[0] = XDoubleToFixed (width);
1026	params[1] = XDoubleToFixed (1);
1027
1028	for (int i = 0; i < width; i++)
1029	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1030	}
1031	#endif
1032
1033	bool
1034	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1035	{
1036	bool ret = false;
1037	#if XRENDER
1038	if (!(bg_flags & BG_HAS_RENDER_CONV))
1039	return false;
1040
1041	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1042	double *kernel = (double *)malloc (size * sizeof (double));
1043	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1044
1045	XRenderPictureAttributes pa;
1046	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1047
1048	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1049	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1050
1051	if (kernel && params)
1052	{
1053	if (h_blurRadius)
1054	{
1055	size = h_blurRadius * 2 + 1;
1056	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1057
1058	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1059	XRenderComposite (dpy,
1060	PictOpSrc,
1061	src,
1062	None,
1063	dst,
1064	0, 0,
1065	0, 0,
1066	0, 0,
1067	width, height);
1068	}
1069
1070	if (v_blurRadius)
1071	{
1072	size = v_blurRadius * 2 + 1;
1073	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1074	::swap (params[0], params[1]);
1075
1076	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1077	XRenderComposite (dpy,
1078	PictOpSrc,
1079	src,
1080	None,
1081	dst,
1082	0, 0,
1083	0, 0,
1084	0, 0,
1085	width, height);
1086	}
1087
1088	ret = true;
1089	}
1090
1091	free (kernel);
1092	free (params);
1093	XRenderFreePicture (dpy, src);
1094	XRenderFreePicture (dpy, dst);
1095	#endif
1096	return ret;
1097	}
1098
1099	bool
1100	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1101	{
1102	bool ret = false;
1103
1104	if (bg_flags & BG_TINT_BITAND)
1105	{
1106	XGCValues gcv;
1107	GC gc;
1108
1109	/* In this case we can tint image server-side getting significant
1110	* performance improvements, as we eliminate XImage transfer
1111	*/
1112	gcv.foreground = Pixel (tint);
1113	gcv.function = GXand;
1114	gcv.fill_style = FillSolid;
1115	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1116	if (gc)
1117	{
1118	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1119	ret = true;
1120	XFreeGC (dpy, gc);
1121	}
1122	}
1123	# if XRENDER
1124	else if (bg_flags & BG_HAS_RENDER)
1125	{
1126	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1127
1128	if (bg_flags & BG_TINT_SET)
1129	tint.get (c);
1130
1131	if (shade <= 100)
1132	{
1133	c.r = c.r * shade / 100;
1134	c.g = c.g * shade / 100;
1135	c.b = c.b * shade / 100;
1136	}
1137	else
1138	{
1139	c.r = c.r * (200 - shade) / 100;
1140	c.g = c.g * (200 - shade) / 100;
1141	c.b = c.b * (200 - shade) / 100;
1142	}
1143
1144	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1145	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1146	XRenderPictureAttributes pa;
1147
1148	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1149
1150	pa.repeat = True;
1151
1152	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1153	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1154	XFreePixmap (dpy, overlay_pmap);
1155
1156	pa.component_alpha = True;
1157	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1158	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1159	XFreePixmap (dpy, mask_pmap);
1160
1161	XRenderColor mask_c;
1162
1163	mask_c.alpha = 0xffff;
1164	mask_c.red =
1165	mask_c.green =
1166	mask_c.blue = 0;
1167	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1168
1169	mask_c.alpha = 0;
1170	mask_c.red = 0xffff - c.r;
1171	mask_c.green = 0xffff - c.g;
1172	mask_c.blue = 0xffff - c.b;
1173	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1174	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1175
1176	if (shade > 100)
1177	{
1178	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1179	mask_c.alpha = 0;
1180	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1181
1182	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1183	}
1184
1185	ret = true;
1186
1187	XRenderFreePicture (dpy, mask_pic);
1188	XRenderFreePicture (dpy, overlay_pic);
1189	XRenderFreePicture (dpy, back_pic);
1190	}
1191	# endif
1192
1193	return ret;
1194	}
1195
1196	/*	448	/*
1197	* Builds a pixmap of the same size as the terminal window that contains	449	* Builds a pixmap of the same size as the terminal window that contains
1198	* the tiled portion of the root pixmap that is supposed to be covered by	450	* the tiled portion of the root pixmap that is supposed to be covered by
1199	* our window.	451	* our window.
1200	*/	452	*/
1201	unsigned long	453	bool
1202	rxvt_term::make_transparency_pixmap ()	454	rxvt_term::render_root_image ()
1203	{	455	{
1204	unsigned long result = 0;
1205
1206	/* root dimensions may change from call to call - but Display structure should	456	/* root dimensions may change from call to call - but Display structure should
1207	* be always up-to-date, so let's use it :	457	* be always up-to-date, so let's use it :
1208	*/	458	*/
1209	int screen = display->screen;	459	int screen = display->screen;
1210	int root_depth = DefaultDepth (dpy, screen);
1211	int root_width = DisplayWidth (dpy, screen);	460	int root_width = DisplayWidth (dpy, screen);
1212	int root_height = DisplayHeight (dpy, screen);	461	int root_height = DisplayHeight (dpy, screen);
1213	unsigned int root_pmap_width, root_pmap_height;
1214	int window_width = szHint.width;	462	int parent_width = szHint.width;
1215	int window_height = szHint.height;	463	int parent_height = szHint.height;
1216	int sx, sy;	464	int sx, sy;
1217	XGCValues gcv;
1218	GC gc;
1219		465
1220	sx = target_x;	466	sx = parent_x;
1221	sy = target_y;	467	sy = parent_y;
		468
		469	if (!root_img)
		470	return false;
1222		471
1223	/* check if we are outside of the visible part of the virtual screen : */	472	/* check if we are outside of the visible part of the virtual screen : */
1224	if (sx + window_width <= 0 || sy + window_height <= 0	473	if (sx + parent_width <= 0 || sy + parent_height <= 0
1225	|| sx >= root_width || sy >= root_height)	474	|| sx >= root_width || sy >= root_height)
1226	return 0;	475	return 0;
1227		476
1228	// validate root pixmap and get its size	477	while (sx < 0) sx += root_img->w;
1229	if (root_pixmap != None)	478	while (sy < 0) sy += root_img->h;
1230	{
1231	Window wdummy;
1232	int idummy;
1233	unsigned int udummy;
1234		479
1235	allowedxerror = -1;	480	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1236		481
1237	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	482	if (root_effects.need_blur ())
1238	root_pixmap = None;	483	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1239		484
1240	allowedxerror = 0;	485	if (root_effects.need_tint ())
1241	}	486	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1242		487
1243	Pixmap recoded_root_pmap = root_pixmap;
1244
1245	if (root_pixmap != None && root_depth != depth)
1246	{
1247	#if XRENDER
1248	if (bg_flags & BG_HAS_RENDER)
1249	{
1250	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1251
1252	XRenderPictureAttributes pa;
1253
1254	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1255	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1256
1257	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	488	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1258	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	489	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1259		490
1260	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	491	delete bg_img;
		492	bg_img = img;
1261		493
1262	XRenderFreePicture (dpy, src);
1263	XRenderFreePicture (dpy, dst);
1264	}
1265	else
1266	#endif
1267	recoded_root_pmap = None;
1268	}
1269
1270	if (recoded_root_pmap == None)
1271	return 0;
1272
1273	if (bg_pixmap == None
1274	|| bg_pmap_width != window_width
1275	|| bg_pmap_height != window_height)
1276	{
1277	if (bg_pixmap)
1278	XFreePixmap (dpy, bg_pixmap);
1279	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1280	bg_pmap_width = window_width;
1281	bg_pmap_height = window_height;
1282	}
1283
1284	/* straightforward pixmap copy */
1285	while (sx < 0) sx += root_pmap_width;
1286	while (sy < 0) sy += root_pmap_height;
1287
1288	gcv.tile = recoded_root_pmap;
1289	gcv.fill_style = FillTiled;
1290	gcv.ts_x_origin = -sx;
1291	gcv.ts_y_origin = -sy;
1292	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1293
1294	if (gc)
1295	{
1296	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1297	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1298	XFreeGC (dpy, gc);
1299
1300	if (!(bg_flags & BG_CLIENT_RENDER))
1301	{
1302	if (bg_flags & BG_NEEDS_BLUR)
1303	{
1304	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1305	result &= ~BG_NEEDS_BLUR;
1306	}
1307	if (bg_flags & BG_NEEDS_TINT)
1308	{
1309	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1310	result &= ~BG_NEEDS_TINT;
1311	}
1312	} /* server side rendering completed */
1313	}
1314
1315	if (recoded_root_pmap != root_pixmap)
1316	XFreePixmap (dpy, recoded_root_pmap);
1317
1318	return result;	494	return true;
1319	}	495	}
1320		496
1321	void	497	void
1322	rxvt_term::bg_set_root_pixmap ()	498	rxvt_term::bg_set_root_pixmap ()
1323	{	499	{
1324	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	500	delete root_img;
1325	if (new_root_pixmap == None)	501	root_img = rxvt_img::new_from_root (this);
1326	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1327
1328	root_pixmap = new_root_pixmap;
1329	}	502	}
1330	# endif /* ENABLE_TRANSPARENCY */	503	# endif /* ENABLE_TRANSPARENCY */
1331		504
1332	bool	505	void
1333	rxvt_term::bg_render ()	506	rxvt_term::bg_render ()
1334	{	507	{
1335	unsigned long tr_flags = 0;	508	if (bg_flags & BG_INHIBIT_RENDER)
		509	return;
1336		510
1337	bg_invalidate ();	511	bg_invalidate ();
1338	# ifdef ENABLE_TRANSPARENCY	512	# if ENABLE_TRANSPARENCY
1339	if (bg_flags & BG_IS_TRANSPARENT)	513	if (bg_flags & BG_IS_TRANSPARENT)
1340	{	514	{
1341	/* we need to re-generate transparency pixmap in that case ! */	515	/* we need to re-generate transparency pixmap in that case ! */
1342	tr_flags = make_transparency_pixmap ();
1343	if (tr_flags == 0)
1344	return false;
1345	bg_flags |= BG_IS_VALID;
1346	}
1347	# endif
1348
1349	# ifdef BG_IMAGE_FROM_FILE
1350	if ((bg_flags & BG_IS_FROM_FILE)
1351	|| (tr_flags & BG_EFFECTS_FLAGS))
1352	{
1353	if (render_image (tr_flags))	516	if (render_root_image ())
1354	bg_flags |= BG_IS_VALID;	517	bg_flags |= BG_IS_VALID;
1355	}	518	}
1356	# endif	519	# endif
1357		520
1358	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	521	# if BG_IMAGE_FROM_FILE
1359	XImage *result = NULL;	522	if (fimage.img)
1360
1361	if (tr_flags & BG_NEEDS_TINT)
1362	{
1363	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1364	}	523	{
1365		524	if (render_image (fimage))
1366	if (result)	525	bg_flags |= BG_IS_VALID;
1367	{
1368	/* our own client-side tinting */
1369	//if (tr_flags & BG_NEEDS_TINT)
1370	if (1)
1371	tint_ximage (DefaultVisual (dpy, display->screen), result);
1372
1373	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1374
1375	if (gc)
1376	{
1377	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1378
1379	XFreeGC (dpy, gc);
1380	}
1381
1382	XDestroyImage (result);
1383	}	526	}
1384	# endif	527	# endif
1385		528
1386	if (!(bg_flags & BG_IS_VALID))	529	if (!(bg_flags & BG_IS_VALID))
1387	{	530	{
1388	if (bg_pixmap != None)	531	delete bg_img;
1389	{	532	bg_img = 0;
1390	XFreePixmap (dpy, bg_pixmap);
1391	bg_pixmap = None;
1392	}
1393	}	533	}
1394		534
1395	scr_recolour (false);	535	scr_recolour (false);
1396	bg_flags |= BG_NEEDS_REFRESH;	536	bg_flags |= BG_NEEDS_REFRESH;
1397		537
1398	bg_valid_since = ev::now ();	538	bg_valid_since = ev::now ();
1399
1400	return true;
1401	}	539	}
1402		540
1403	void	541	void
1404	rxvt_term::bg_init ()	542	rxvt_term::bg_init ()
1405	{	543	{
1406	#ifdef ENABLE_TRANSPARENCY	544	#if BG_IMAGE_FROM_FILE
1407	shade = 100;	545	if (rs[Rs_backgroundPixmap])
		546	{
		547	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
		548	&& !bg_window_position_sensitive ())
		549	update_background ();
		550	}
1408	#endif	551	#endif
1409
1410	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
1411	#if XRENDER
1412	int major, minor;
1413	if (XRenderQueryVersion (dpy, &major, &minor))
1414	bg_flags |= BG_HAS_RENDER;
1415	XFilters *filters = XRenderQueryFilters (dpy, vt);
1416	if (filters)
1417	{
1418	for (int i = 0; i < filters->nfilter; i++)
1419	if (!strcmp (filters->filter[i], FilterConvolution))
1420	bg_flags |= BG_HAS_RENDER_CONV;
1421
1422	XFree (filters);
1423	}
1424	#endif
1425	}
1426
1427	#endif /* HAVE_BG_PIXMAP */
1428
1429	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1430	/* based on code from aterm-0.4.2 */
1431
1432	static inline void
1433	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1434	{
1435	for (int i = 0; i <= mask >> sh; i++)
1436	{
1437	uint32_t tmp;
1438	tmp = i * high;
1439	tmp += (mask >> sh) * low;
1440	lookup[i] = (tmp / 0xffff) << sh;
1441	}
1442	}	552	}
1443		553
1444	void	554	void
1445	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)	555	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1446	{	556	{
1447	int sh_r, sh_g, sh_b;
1448	uint32_t mask_r, mask_g, mask_b;
1449	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1450	unsigned short low;
1451	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1452
1453	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1454
1455	/* for convenience */
1456	mask_r = visual->red_mask;
1457	mask_g = visual->green_mask;
1458	mask_b = visual->blue_mask;
1459
1460	/* boring lookup table pre-initialization */
1461	switch (ximage->depth)
1462	{
1463	case 15:
1464	if ((mask_r != 0x7c00) ||
1465	(mask_g != 0x03e0) ||
1466	(mask_b != 0x001f))
1467	return;
1468	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1469	lookup_r = lookup;
1470	lookup_g = lookup+32;
1471	lookup_b = lookup+32+32;
1472	sh_r = 10;
1473	sh_g = 5;
1474	sh_b = 0;
1475	break;
1476	case 16:
1477	if ((mask_r != 0xf800) ||
1478	(mask_g != 0x07e0) ||
1479	(mask_b != 0x001f))
1480	return;
1481	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1482	lookup_r = lookup;
1483	lookup_g = lookup+32;
1484	lookup_b = lookup+32+64;
1485	sh_r = 11;
1486	sh_g = 5;
1487	sh_b = 0;
1488	break;
1489	case 24:
1490	if ((mask_r != 0xff0000) ||
1491	(mask_g != 0x00ff00) ||
1492	(mask_b != 0x0000ff))
1493	return;
1494	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1495	lookup_r = lookup;
1496	lookup_g = lookup+256;
1497	lookup_b = lookup+256+256;
1498	sh_r = 16;
1499	sh_g = 8;
1500	sh_b = 0;
1501	break;
1502	case 32:
1503	if ((mask_r != 0xff0000) ||
1504	(mask_g != 0x00ff00) ||
1505	(mask_b != 0x0000ff))
1506	return;
1507	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1508	lookup_r = lookup;
1509	lookup_g = lookup+256;
1510	lookup_b = lookup+256+256;
1511	sh_r = 16;
1512	sh_g = 8;
1513	sh_b = 0;
1514	break;
1515	default:
1516	return; /* we do not support this color depth */
1517	}
1518
1519	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	557	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1520		558
1521	if (bg_flags & BG_TINT_SET)	559	if (tint_set)
1522	tint.get (c);	560	tint.get (c);
1523		561
1524	/* prepare limits for color transformation (each channel is handled separately) */
1525	if (shade > 100)	562	if (shade > 100)
1526	{	563	{
1527	c.r = c.r * (200 - shade) / 100;	564	c.r = c.r * (200 - shade) / 100;
1528	c.g = c.g * (200 - shade) / 100;	565	c.g = c.g * (200 - shade) / 100;
1529	c.b = c.b * (200 - shade) / 100;	566	c.b = c.b * (200 - shade) / 100;
1530
1531	low = 0xffff * (shade - 100) / 100;
1532	}	567	}
1533	else	568	else
1534	{	569	{
1535	c.r = c.r * shade / 100;	570	c.r = c.r * shade / 100;
1536	c.g = c.g * shade / 100;	571	c.g = c.g * shade / 100;
1537	c.b = c.b * shade / 100;	572	c.b = c.b * shade / 100;
1538
1539	low = 0;
1540	}
1541
1542	/* fill our lookup tables */
1543	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1544	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1545	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1546
1547	/* apply table to input image (replacing colors by newly calculated ones) */
1548	if (ximage->bits_per_pixel == 32
1549	&& (ximage->depth == 24 || ximage->depth == 32)
1550	&& ximage->byte_order == host_byte_order)
1551	{	573	}
1552	uint32_t *p1, *pf, *p, *pl;
1553	p1 = (uint32_t *) ximage->data;
1554	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1555		574
1556	while (p1 < pf)	575	img->contrast (c.r, c.g, c.b, c.a);
1557	{	576
1558	p = p1;	577	if (shade > 100)
1559	pl = p1 + ximage->width;
1560	for (; p < pl; p++)
1561	{
1562	*p = lookup_r[(*p & 0xff0000) >> 16] |
1563	lookup_g[(*p & 0x00ff00) >> 8] |
1564	lookup_b[(*p & 0x0000ff)] |
1565	(*p & 0xff000000);
1566	}
1567	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1568	}
1569	}	578	{
1570	else	579	c.a = 0xffff;
		580	c.r =
		581	c.g =
		582	c.b = 0xffff * (shade - 100) / 100;
		583	img->brightness (c.r, c.g, c.b, c.a);
1571	{	584	}
1572	for (int y = 0; y < ximage->height; y++)
1573	for (int x = 0; x < ximage->width; x++)
1574	{
1575	unsigned long pixel = XGetPixel (ximage, x, y);
1576	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1577	lookup_g[(pixel & mask_g) >> sh_g] |
1578	lookup_b[(pixel & mask_b) >> sh_b];
1579	XPutPixel (ximage, x, y, pixel);
1580	}
1581	}
1582
1583	free (lookup);
1584	}	585	}
1585	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	586
		587	#endif /* HAVE_BG_PIXMAP */

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