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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.172 by sf-exg, Tue Aug 30 15:00:27 2011 UTC vs.
Revision 1.254 by sf-exg, Sun Dec 30 20:28:31 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 BG_IMAGE_FROM_ROOT
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
55	if (bg_pixmap)
56	XFreePixmap (dpy, bg_pixmap);
57	}	41	}
58		42
59	bool	43	bool
60	rxvt_term::bg_set_position (int x, int y)	44	rxvt_term::bg_window_size_sensitive ()
61	{	45	{
		46	# if BG_IMAGE_FROM_ROOT
		47	if (root_img)
		48	return true;
		49	# endif
62		50
63	if (target_x != x	51	# if BG_IMAGE_FROM_FILE
64	|| target_y != y)	52	if (fimage.img)
65	{	53	{
66	target_x = x;	54	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
67	target_y = y;	55	|| fimage.img->w > szHint.width
		56	|| fimage.img->h > szHint.height)
68	return true;	57	return true;
69	}	58	}
		59	# endif
		60
70	return false;	61	return false;
71	}	62	}
72		63
73	bool	64	bool
74	rxvt_term::bg_window_size_sensitive ()	65	rxvt_term::bg_window_position_sensitive ()
75	{	66	{
76	# ifdef ENABLE_TRANSPARENCY	67	# if BG_IMAGE_FROM_ROOT
77	if (bg_flags & BG_IS_TRANSPARENT)	68	if (root_img)
78	return true;	69	return true;
79	# endif	70	# endif
80		71
81	# ifdef BG_IMAGE_FROM_FILE	72	# if BG_IMAGE_FROM_FILE
82	if (bg_flags & BG_IS_FROM_FILE)	73	if (fimage.img)
83	{	74	{
84	if (bg_flags & BG_IS_SIZE_SENSITIVE)	75	if (fimage.flags & IM_ROOT_ALIGN)
85	return true;	76	return true;
86	}	77	}
87	# endif	78	# endif
88		79
89	return false;	80	return false;
90	}	81	}
91		82
92	bool
93	rxvt_term::bg_window_position_sensitive ()
94	{
95	# ifdef ENABLE_TRANSPARENCY
96	if (bg_flags & BG_IS_TRANSPARENT)
97	return true;
98	# endif
99
100	# ifdef BG_IMAGE_FROM_FILE	83	# if BG_IMAGE_FROM_FILE
101	if (bg_flags & BG_IS_FROM_FILE)
102	{
103	if (bg_flags & BG_ROOT_ALIGN)
104	return true;
105	}
106	# endif
107
108	return false;
109	}
110
111	# ifdef 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	84	static inline int
147	make_align_position (int align, int window_size, int image_size)	85	make_align_position (int align, int window_size, int image_size)
148	{	86	{
149	int diff = window_size - image_size;
150	int smaller = min (image_size, window_size);
151
152	if (align >= 0 && align <= 100)	87	if (align >= 0 && align <= 100)
153	return diff * align / 100;	88	return lerp (0, window_size - image_size, align);
154	else if (align > 100 && align <= 200)	89	else if (align > 100)
155	return (align - 100) * smaller / 100 + window_size - smaller;	90	return lerp (window_size - image_size, window_size, align - 100);
156	else if (align >= -100 && align < 0)	91	else
157	return (align + 100) * smaller / 100 - image_size;	92	return lerp (-image_size, 0, align + 100);
158	return 0;
159	}	93	}
160		94
161	static inline int	95	static void
162	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	96	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
163	{	97	{
164	int src_pos = 0;	98	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	}	99	{
173		100	flags = IM_TILE;
174	if (dst_pos + dst_size > target_size)	101	w = h = noScale;
175	dst_size = target_size - dst_pos;	102	x = y = 0;
176	return src_pos;	103	}
		104	else if (!strcasecmp (style, "aspect-stretched"))
		105	{
		106	flags = IM_KEEP_ASPECT;
		107	w = h = windowScale;
		108	x = y = centerAlign;
		109	}
		110	else if (!strcasecmp (style, "stretched"))
		111	{
		112	flags = 0;
		113	w = h = windowScale;
		114	x = y = centerAlign;
		115	}
		116	else if (!strcasecmp (style, "centered"))
		117	{
		118	flags = 0;
		119	w = h = noScale;
		120	x = y = centerAlign;
		121	}
		122	else if (!strcasecmp (style, "root-tiled"))
		123	{
		124	flags = IM_TILE|IM_ROOT_ALIGN;
		125	w = h = noScale;
		126	x = y = 0;
		127	}
177	}	128	}
178		129
179	bool	130	bool
180	rxvt_term::bg_set_geometry (const char *geom, bool update)	131	rxvt_image::set_geometry (const char *geom, bool update)
181	{	132	{
182	bool changed = false;	133	bool changed = false;
183	int geom_flags = 0;	134	int geom_flags = 0;
184	int x = 0, y = 0;	135	int x = h_align;
		136	int y = v_align;
185	unsigned int w = 0, h = 0;	137	unsigned int w = h_scale;
186	unsigned long new_flags = bg_flags & ~BG_GEOMETRY_FLAGS;	138	unsigned int h = v_scale;
		139	uint8_t new_flags = 0;
187		140
188	if (geom == NULL)	141	if (geom == NULL)
189	return false;	142	return false;
190		143
191	if (geom[0])	144	if (geom[0])
192	{	145	{
193	char **arr = rxvt_strsplit (':', geom);	146	char **arr = rxvt_strsplit (':', geom);
194		147
195	for (int i = 0; arr[i]; i++)	148	for (int i = 0; arr[i]; i++)
196	{	149	{
197	if (!strcasecmp (arr[i], "style=tiled"))	150	if (!strncasecmp (arr[i], "style=", 6))
198	{	151	{
199	new_flags = BG_TILE;	152	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;	153	geom_flags = WidthValue|HeightValue|XValue|YValue;
203	}	154	}
204	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
205	{
206	new_flags = BG_PROP_SCALE;
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"))	155	else if (!strcasecmp (arr[i], "op=tile"))
231	new_flags |= BG_TILE;	156	new_flags |= IM_TILE;
232	else if (!strcasecmp (arr[i], "op=pscale"))	157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
233	new_flags |= BG_PROP_SCALE;	158	new_flags |= IM_KEEP_ASPECT;
234	else if (!strcasecmp (arr[i], "op=root"))	159	else if (!strcasecmp (arr[i], "op=root-align"))
235	new_flags |= BG_ROOT_ALIGN;	160	new_flags |= IM_ROOT_ALIGN;
236		161
237	// deprecated	162	// deprecated
238	else if (!strcasecmp (arr[i], "tile"))	163	else if (!strcasecmp (arr[i], "tile"))
239	{	164	{
240	new_flags |= BG_TILE;	165	new_flags |= IM_TILE;
241	w = h = noScale;	166	w = h = noScale;
242	geom_flags |= WidthValue|HeightValue;	167	geom_flags |= WidthValue|HeightValue;
243	}	168	}
244	else if (!strcasecmp (arr[i], "propscale"))	169	else if (!strcasecmp (arr[i], "propscale"))
245	{	170	{
246	new_flags |= BG_PROP_SCALE;	171	new_flags |= IM_KEEP_ASPECT;
		172	w = h = windowScale;
		173	geom_flags |= WidthValue|HeightValue;
247	}	174	}
248	else if (!strcasecmp (arr[i], "hscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
249	{	176	{
250	new_flags |= BG_TILE;	177	new_flags |= IM_TILE;
251	w = windowScale;	178	w = windowScale;
252	h = noScale;	179	h = noScale;
253	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
254	}	181	}
255	else if (!strcasecmp (arr[i], "vscale"))	182	else if (!strcasecmp (arr[i], "vscale"))
256	{	183	{
257	new_flags |= BG_TILE;	184	new_flags |= IM_TILE;
258	h = windowScale;	185	h = windowScale;
259	w = noScale;	186	w = noScale;
260	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
261	}	188	}
262	else if (!strcasecmp (arr[i], "scale"))	189	else if (!strcasecmp (arr[i], "scale"))
…		…
270	x = y = centerAlign;	197	x = y = centerAlign;
271	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
272	}	199	}
273	else if (!strcasecmp (arr[i], "root"))	200	else if (!strcasecmp (arr[i], "root"))
274	{	201	{
275	new_flags |= BG_TILE|BG_ROOT_ALIGN;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
276	w = h = noScale;	203	w = h = noScale;
277	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
278	}	205	}
279		206
280	else	207	else
281	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);	208	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
282	} /* done parsing ops */	209	} /* done parsing ops */
283		210
284	rxvt_free_strsplit (arr);	211	rxvt_free_strsplit (arr);
285	}	212	}
		213
		214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
286		215
287	if (!update)	216	if (!update)
288	{	217	{
289	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
290	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
295	w = h = defaultScale;	224	w = h = defaultScale;
296	else if (!(geom_flags & HeightValue))	225	else if (!(geom_flags & HeightValue))
297	h = w;	226	h = w;
298	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
299	w = h;	228	w = h;
300
301	geom_flags |= WidthValue|HeightValue|XValue|YValue;
302	}
303
304	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
305	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
306	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
307	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
308
309	if (new_flags != bg_flags)
310	{	229	}
		230
		231	clamp_it (x, -100, 200);
		232	clamp_it (y, -100, 200);
		233
		234	if (flags != new_flags
		235	|| h_scale != w
		236	|| v_scale != h
		237	|| h_align != x
		238	|| v_align != y)
		239	{
311	bg_flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
312	changed = true;	245	changed = true;
313	}	246	}
314		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
315	return changed;	253	return changed;
316	}	254	}
317		255
318	void	256	void
319	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	257	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
320	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
321	int target_width = szHint.width;	261	int parent_width = szHint.width;
322	int target_height = szHint.height;	262	int parent_height = szHint.height;
		263	int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
		264	int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
323		265
324	w = h_scale * target_width / 100;	266	w = h_scale * parent_width / 100;
325	h = v_scale * target_height / 100;	267	h = v_scale * parent_height / 100;
326		268
327	if (bg_flags & BG_PROP_SCALE)	269	if (image.flags & IM_KEEP_ASPECT)
328	{	270	{
329	float scale = (float)w / image_width;	271	float scale = (float)w / image_width;
330	min_it (scale, (float)h / image_height);	272	min_it (scale, (float)h / image_height);
331	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
332	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
333	}	275	}
334		276
335	if (!w) w = image_width;	277	if (!w) w = image_width;
336	if (!h) h = image_height;	278	if (!h) h = image_height;
337		279
338	if (bg_flags & BG_ROOT_ALIGN)	280	if (image.flags & IM_ROOT_ALIGN)
339	{	281	{
340	x = -target_x;	282	x = -parent_x;
341	y = -target_y;	283	y = -parent_y;
342	}	284	}
343	else	285	else
344	{	286	{
345	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
346	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
347	}
348
349	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
350	if (!(bg_flags & BG_TILE)
351	|| h_scale || v_scale
352	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
353	|| w > target_width || h > target_height)
354	bg_flags |= BG_IS_SIZE_SENSITIVE;
355	}
356
357	# ifdef HAVE_AFTERIMAGE
358	bool
359	rxvt_term::render_image (unsigned long tr_flags)
360	{
361	init_asv ();
362
363	ASImage *background = NULL;
364	ARGB32 background_tint = TINT_LEAVE_SAME;
365
366	# ifdef ENABLE_TRANSPARENCY
367	if (tr_flags)
368	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
369
370	if (tr_flags & BG_NEEDS_TINT)
371	{	289	}
372	ShadingInfo as_shade;	290	}
373	as_shade.shading = shade;
374		291
375	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	292	bool
376	if (bg_flags & BG_TINT_SET)	293	rxvt_term::render_image (rxvt_image &image)
377	tint.get (c);	294	{
378	as_shade.tintColor.red = c.r;
379	as_shade.tintColor.green = c.g;
380	as_shade.tintColor.blue = c.b;
381
382	background_tint = shading2tint32 (&as_shade);
383	}
384
385	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
386	{
387	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
388	ASA_XImage,
389	100, ASIMAGE_QUALITY_DEFAULT);
390	if (tmp)
391	{
392	destroy_asimage (&background);
393	background = tmp;
394	}
395	}
396	# endif
397
398	ASImage *result = 0;
399
400	int target_width = szHint.width;	295	int parent_width = szHint.width;
401	int target_height = szHint.height;	296	int parent_height = szHint.height;
402	int new_pmap_width = target_width;
403	int new_pmap_height = target_height;
404		297
405	int x = 0;	298	int x = 0;
406	int y = 0;	299	int y = 0;
407	int w = 0;	300	int w = 0;
408	int h = 0;	301	int h = 0;
409		302
410	if (original_asim)	303	get_image_geometry (image, w, h, x, y);
411	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
412		304
413	if (!original_asim
414	|| (!(bg_flags & BG_ROOT_ALIGN)
415	&& (x >= target_width
416	|| y >= target_height
417	|| x + w <= 0
418	|| y + h <= 0)))
419	{
420	if (background)
421	{
422	new_pmap_width = background->width;
423	new_pmap_height = background->height;
424	result = background;
425
426	if (background_tint != TINT_LEAVE_SAME)
427	{
428	ASImage *tmp = tile_asimage (asv, background, 0, 0,
429	target_width, target_height, background_tint,
430	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
431	if (tmp)
432	result = tmp;
433	}
434	}
435	else
436	new_pmap_width = new_pmap_height = 0;
437	}
438	else
439	{
440	result = original_asim;
441
442	if (w != original_asim->width
443	|| h != original_asim->height)
444	{
445	result = scale_asimage (asv, original_asim,
446	w, h,
447	ASA_XImage,
448	100, ASIMAGE_QUALITY_DEFAULT);
449	}
450
451	if (background == NULL)
452	{
453	if (bg_flags & BG_TILE)
454	{
455	/* if tiling - pixmap has to be sized exactly as the image,
456	but there is no need to make it bigger than the window! */
457	new_pmap_width = min (result->width, target_width);
458	new_pmap_height = min (result->height, target_height);
459
460	/* we also need to tile our image in both directions */
461	ASImage *tmp = tile_asimage (asv, result,
462	(int)result->width - x,
463	(int)result->height - y,
464	new_pmap_width,
465	new_pmap_height,
466	TINT_LEAVE_SAME, ASA_XImage,
467	100, ASIMAGE_QUALITY_DEFAULT);
468	if (tmp)
469	{
470	if (result != original_asim)
471	destroy_asimage (&result);
472
473	result = tmp;
474	}
475	}
476	}
477	else
478	{
479	/* if blending background and image - pixmap has to be sized same as target window */
480	ASImageLayer *layers = create_image_layers (2);
481
482	layers[0].im = background;
483	layers[0].clip_width = target_width;
484	layers[0].clip_height = target_height;
485	layers[0].tint = background_tint;
486	layers[1].im = result;
487
488	if (bg_flags & BG_TILE)
489	{
490	/* tile horizontally */
491	while (x > 0) x -= (int)result->width;
492	layers[1].dst_x = x;
493	layers[1].clip_width = result->width+target_width;
494	}
495	else
496	{
497	/* clip horizontally */
498	layers[1].dst_x = x;
499	layers[1].clip_width = result->width;
500	}
501
502	if (bg_flags & BG_TILE)
503	{
504	while (y > 0) y -= (int)result->height;
505	layers[1].dst_y = y;
506	layers[1].clip_height = result->height + target_height;
507	}
508	else
509	{
510	layers[1].dst_y = y;
511	layers[1].clip_height = result->height;
512	}
513
514	if (rs[Rs_blendtype])
515	{
516	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
517	if (layers[1].merge_scanlines == NULL)
518	layers[1].merge_scanlines = alphablend_scanlines;
519	}
520
521	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
522	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
523
524	if (tmp)
525	{
526	if (result != original_asim)
527	destroy_asimage (&result);
528
529	result = tmp;
530	}
531
532	free (layers);
533	}
534	}
535
536	bool ret = false;
537
538	if (result)
539	{
540	XGCValues gcv;
541	GC gc;
542
543	/* create Pixmap */
544	if (bg_pixmap == None
545	|| bg_pmap_width != new_pmap_width
546	|| bg_pmap_height != new_pmap_height)
547	{
548	if (bg_pixmap)
549	XFreePixmap (dpy, bg_pixmap);
550	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
551	bg_pmap_width = new_pmap_width;
552	bg_pmap_height = new_pmap_height;
553	}
554	/* fill with background color (if result's not completely overlapping it) */
555	gcv.foreground = pix_colors[Color_bg];
556	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
557
558	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
559	int dst_width = result->width, dst_height = result->height;
560	if (background == NULL)
561	{
562	if (!(bg_flags & BG_TILE))
563	{
564	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
565	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
566	}
567
568	if (dst_x > 0 || dst_y > 0
569	|| dst_x + dst_width < new_pmap_width
570	|| dst_y + dst_height < new_pmap_height)
571	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
572	}
573
574	/* put result on pixmap */
575	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
576	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
577
578	if (result != background && result != original_asim)
579	destroy_asimage (&result);
580
581	XFreeGC (dpy, gc);
582
583	ret = true;
584	}
585
586	if (background)
587	destroy_asimage (&background);
588
589	return ret;
590	}
591	# endif /* HAVE_AFTERIMAGE */
592
593	# ifdef HAVE_PIXBUF
594	bool
595	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
596	int src_x, int src_y, int dst_x, int dst_y,
597	unsigned int width, unsigned int height)
598	{
599	XImage *ximage;
600	char *data, *line;
601	int bytes_per_pixel;
602	int width_r, width_g, width_b;
603	int sh_r, sh_g, sh_b;
604	int rowstride;
605	int channels;
606	unsigned char *row;
607
608	if (visual->c_class != TrueColor)
609	return false;
610
611	if (depth == 24 || depth == 32)
612	bytes_per_pixel = 4;
613	else if (depth == 15 || depth == 16)
614	bytes_per_pixel = 2;
615	else
616	return false;
617
618	width_r = ecb_popcount32 (visual->red_mask);
619	width_g = ecb_popcount32 (visual->green_mask);
620	width_b = ecb_popcount32 (visual->blue_mask);
621
622	if (width_r > 8 || width_g > 8 || width_b > 8)
623	return false;
624
625	sh_r = ecb_ctz32 (visual->red_mask);
626	sh_g = ecb_ctz32 (visual->green_mask);
627	sh_b = ecb_ctz32 (visual->blue_mask);
628
629	if (width > INT_MAX / height / bytes_per_pixel)
630	return false;
631
632	data = (char *)malloc (width * height * bytes_per_pixel);
633	if (!data)
634	return false;
635
636	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
637	width, height, bytes_per_pixel * 8, 0);
638	if (!ximage)
639	{
640	free (data);
641	return false;
642	}
643
644	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
645
646	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
647	channels = gdk_pixbuf_get_n_channels (pixbuf);
648	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
649	line = data;
650
651	for (int y = 0; y < height; y++)
652	{
653	for (int x = 0; x < width; x++)
654	{
655	unsigned char *pixel = row + x * channels;
656	uint32_t value;
657
658	value = ((pixel[0] >> (8 - width_r)) << sh_r)
659	| ((pixel[1] >> (8 - width_g)) << sh_g)
660	| ((pixel[2] >> (8 - width_b)) << sh_b);
661
662	if (bytes_per_pixel == 4)
663	((uint32_t *)line)[x] = value;
664	else
665	((uint16_t *)line)[x] = value;
666	}
667
668	row += rowstride;
669	line += ximage->bytes_per_line;
670	}
671
672	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
673	XDestroyImage (ximage);
674	return true;
675	}
676
677	bool
678	rxvt_term::render_image (unsigned long tr_flags)
679	{
680	if (!pixbuf)
681	return false;
682
683	if (tr_flags
684	&& !(bg_flags & BG_HAS_RENDER))
685	return false;
686
687	GdkPixbuf *result;
688
689	int image_width = gdk_pixbuf_get_width (pixbuf);
690	int image_height = gdk_pixbuf_get_height (pixbuf);
691
692	int target_width = szHint.width;
693	int target_height = szHint.height;
694	int new_pmap_width = target_width;
695	int new_pmap_height = target_height;
696
697	int x = 0;
698	int y = 0;
699	int w = 0;
700	int h = 0;
701
702	get_image_geometry (image_width, image_height, w, h, x, y);
703
704	if (!(bg_flags & BG_ROOT_ALIGN)	305	if (!(image.flags & IM_ROOT_ALIGN)
705	&& (x >= target_width	306	&& (x >= parent_width
706	|| y >= target_height	307	|| y >= parent_height
707	|| x + w <= 0	308	|| x + w <= 0
708	|| y + h <= 0))	309	|| y + h <= 0))
709	return false;	310	return false;
710		311
711	result = pixbuf;	312	rxvt_img *img = image.img->scale (w, h);
712		313
713	if (w != image_width	314	if (image.flags & IM_TILE)
714	|| h != image_height)	315	img->repeat_mode (RepeatNormal);
715	{
716	result = gdk_pixbuf_scale_simple (pixbuf,
717	w, h,
718	GDK_INTERP_BILINEAR);
719	}
720
721	if (!result)
722	return false;
723
724	bool ret = false;
725
726	XGCValues gcv;
727	GC gc;
728	Pixmap root_pmap;
729
730	image_width = gdk_pixbuf_get_width (result);
731	image_height = gdk_pixbuf_get_height (result);
732
733	if (tr_flags)
734	{
735	root_pmap = bg_pixmap;
736	bg_pixmap = None;
737	}
738	else	316	else
739	{	317	img->repeat_mode (RepeatNone);
740	if (bg_flags & BG_TILE)	318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
741	{
742	new_pmap_width = min (image_width, target_width);
743	new_pmap_height = min (image_height, target_height);
744	}
745	}
746		319
747	if (bg_pixmap == None	320	if (bg_img)
748	|| bg_pmap_width != new_pmap_width	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
749	|| bg_pmap_height != new_pmap_height)
750	{
751	if (bg_pixmap)
752	XFreePixmap (dpy, bg_pixmap);
753	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
754	bg_pmap_width = new_pmap_width;
755	bg_pmap_height = new_pmap_height;
756	}
757		322
758	gcv.foreground = pix_colors[Color_bg];
759	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
760
761	if (gc)
762	{
763	if (bg_flags & BG_TILE)
764	{
765	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
766	pixbuf_to_pixmap (result, tile, gc,
767	0, 0,
768	0, 0,
769	image_width, image_height);
770
771	gcv.tile = tile;
772	gcv.fill_style = FillTiled;
773	gcv.ts_x_origin = x;
774	gcv.ts_y_origin = y;
775	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
776
777	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
778	XFreePixmap (dpy, tile);
779	}
780	else
781	{
782	int src_x, src_y, dst_x, dst_y;
783	int dst_width, dst_height;
784
785	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
786	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
787
788	if (dst_x > 0 || dst_y > 0
789	|| dst_x + dst_width < new_pmap_width
790	|| dst_y + dst_height < new_pmap_height)
791	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
792
793	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
794	pixbuf_to_pixmap (result, bg_pixmap, gc,
795	src_x, src_y,
796	dst_x, dst_y,
797	dst_width, dst_height);
798	}
799
800	#if XRENDER
801	if (tr_flags)
802	{
803	XRenderPictureAttributes pa;
804
805	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
806	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
807		325
808	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	326	delete bg_img;
809	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	327	bg_img = img;
810		328
811	pa.repeat = True;
812	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
813	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
814	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
815	XFreePixmap (dpy, mask_pmap);
816
817	XRenderColor mask_c;
818
819	mask_c.alpha = 0x8000;
820	mask_c.red = 0;
821	mask_c.green = 0;
822	mask_c.blue = 0;
823	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
824	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
825
826	XRenderFreePicture (dpy, src);
827	XRenderFreePicture (dpy, dst);
828	XRenderFreePicture (dpy, mask);
829	}
830	#endif
831
832	XFreeGC (dpy, gc);
833
834	ret = true;
835	}
836
837	if (result != pixbuf)
838	g_object_unref (result);
839
840	if (tr_flags)
841	XFreePixmap (dpy, root_pmap);
842
843	return ret;	329	return true;
844	}	330	}
845	# endif /* HAVE_PIXBUF */
846		331
847	bool	332	rxvt_image::rxvt_image ()
848	rxvt_term::bg_set_file (const char *file)	333	{
		334	alpha = 0xffff;
		335	flags = 0;
		336	h_scale =
		337	v_scale = defaultScale;
		338	h_align =
		339	v_align = defaultAlign;
		340
		341	img = 0;
		342	}
		343
		344	void
		345	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
849	{	346	{
850	if (!file || !*file)	347	if (!file || !*file)
851	return false;	348	return;
852		349
853	bool ret = false;
854	const char *p = strchr (file, ';');	350	const char *p = strchr (file, ';');
855		351
856	if (p)	352	if (p)
857	{	353	{
858	size_t len = p - file;	354	size_t len = p - file;
…		…
860	memcpy (f, file, len);	356	memcpy (f, file, len);
861	f[len] = '\0';	357	f[len] = '\0';
862	file = f;	358	file = f;
863	}	359	}
864		360
865	# ifdef HAVE_AFTERIMAGE	361	set_file (s, file);
866	if (!asimman)	362	alpha = 0x8000;
867	asimman = create_generic_imageman (rs[Rs_path]);	363	set_geometry (p ? p + 1 : "");
868	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	364	}
869	if (image)
870	{
871	if (original_asim)
872	safe_asimage_destroy (original_asim);
873	original_asim = image;
874	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
875	ret = true;
876	}
877	# endif
878		365
879	# ifdef HAVE_PIXBUF	366	void
880	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	367	rxvt_image::set_file (rxvt_screen *s, const char *file)
881	if (image)	368	{
882	{	369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
883	if (pixbuf)	370	delete img;
884	g_object_unref (pixbuf);	371	img = img2;
885	pixbuf = image;
886	bg_flags |= BG_IS_FROM_FILE;
887	ret = true;
888	}
889	# endif
890
891	if (ret)
892	{
893	if (p)
894	bg_set_geometry (p + 1);
895	else
896	bg_set_default_geometry ();
897	}
898
899	return ret;
900	}	372	}
901		373
902	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
903		375
904	# ifdef ENABLE_TRANSPARENCY
905	bool	376	bool
906	rxvt_term::bg_set_transparent ()	377	image_effects::set_blur (const char *geom)
907	{
908	if (!(bg_flags & BG_IS_TRANSPARENT))
909	{
910	bg_flags |= BG_IS_TRANSPARENT;
911	return true;
912	}
913
914	return false;
915	}
916
917	bool
918	rxvt_term::bg_set_blur (const char *geom)
919	{	378	{
920	bool changed = false;	379	bool changed = false;
921	unsigned int hr, vr;	380	unsigned int hr, vr;
922	int junk;	381	int junk;
923	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
940	{	399	{
941	changed = true;	400	changed = true;
942	v_blurRadius = vr;	401	v_blurRadius = vr;
943	}	402	}
944		403
945	if (v_blurRadius == 0 && h_blurRadius == 0)
946	bg_flags &= ~BG_NEEDS_BLUR;
947	else
948	bg_flags |= BG_NEEDS_BLUR;
949
950	return changed;	404	return changed;
951	}	405	}
952		406
953	void
954	rxvt_term::set_tint_shade_flags ()
955	{
956	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
957	bool has_shade = shade != 100;
958
959	bg_flags &= ~BG_TINT_FLAGS;
960
961	if (bg_flags & BG_TINT_SET)
962	{
963	tint.get (c);
964	if (!has_shade
965	&& (c.r <= 0x00ff || c.r >= 0xff00)
966	&& (c.g <= 0x00ff || c.g >= 0xff00)
967	&& (c.b <= 0x00ff || c.b >= 0xff00))
968	bg_flags |= BG_TINT_BITAND;
969	}
970
971	if (has_shade || (bg_flags & BG_TINT_SET))
972	bg_flags |= BG_NEEDS_TINT;
973	}
974
975	bool	407	bool
976	rxvt_term::bg_set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
977	{	409	{
978	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	410	if (!tint_set || tint != new_tint)
979	{	411	{
980	tint = new_tint;	412	tint = new_tint;
981	bg_flags |= BG_TINT_SET;	413	tint_set = true;
982	set_tint_shade_flags ();	414
983	return true;	415	return true;
984	}	416	}
985		417
986	return false;	418	return false;
987	}	419	}
988		420
989	bool	421	bool
990	rxvt_term::bg_set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
991	{	423	{
992	int new_shade = (shade_str) ? atoi (shade_str) : 100;	424	int new_shade = atoi (shade_str);
993		425
994	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
995	if (new_shade < 0)	427	if (new_shade < 0)
996	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
997		429
998	if (new_shade != shade)	430	if (new_shade != shade)
999	{	431	{
1000	shade = new_shade;	432	shade = new_shade;
1001	set_tint_shade_flags ();
1002	return true;	433	return true;
1003	}	434	}
1004		435
1005	return false;	436	return false;
1006	}	437	}
1007		438
1008	#if XRENDER	439	# if BG_IMAGE_FROM_ROOT
1009	static void
1010	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1011	{
1012	double sigma = radius / 2.0;
1013	double scale = sqrt (2.0 * M_PI) * sigma;
1014	double sum = 0.0;
1015
1016	for (int i = 0; i < width; i++)
1017	{
1018	double x = i - width / 2;
1019	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1020	sum += kernel[i];
1021	}
1022
1023	params[0] = XDoubleToFixed (width);
1024	params[1] = XDoubleToFixed (1);
1025
1026	for (int i = 0; i < width; i++)
1027	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1028	}
1029	#endif
1030
1031	bool
1032	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1033	{
1034	bool ret = false;
1035	#if XRENDER
1036	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1037	double *kernel = (double *)malloc (size * sizeof (double));
1038	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1039
1040	XRenderPictureAttributes pa;
1041	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1042
1043	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1044	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1045
1046	if (kernel && params)
1047	{
1048	if (h_blurRadius)
1049	{
1050	size = h_blurRadius * 2 + 1;
1051	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1052
1053	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1054	XRenderComposite (dpy,
1055	PictOpSrc,
1056	src,
1057	None,
1058	dst,
1059	0, 0,
1060	0, 0,
1061	0, 0,
1062	width, height);
1063	}
1064
1065	if (v_blurRadius)
1066	{
1067	size = v_blurRadius * 2 + 1;
1068	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1069	::swap (params[0], params[1]);
1070
1071	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1072	XRenderComposite (dpy,
1073	PictOpSrc,
1074	src,
1075	None,
1076	dst,
1077	0, 0,
1078	0, 0,
1079	0, 0,
1080	width, height);
1081	}
1082
1083	ret = true;
1084	}
1085
1086	free (kernel);
1087	free (params);
1088	XRenderFreePicture (dpy, src);
1089	XRenderFreePicture (dpy, dst);
1090	#endif
1091	return ret;
1092	}
1093
1094	bool
1095	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1096	{
1097	bool ret = false;
1098
1099	if (bg_flags & BG_TINT_BITAND)
1100	{
1101	XGCValues gcv;
1102	GC gc;
1103
1104	/* In this case we can tint image server-side getting significant
1105	* performance improvements, as we eliminate XImage transfer
1106	*/
1107	gcv.foreground = Pixel (tint);
1108	gcv.function = GXand;
1109	gcv.fill_style = FillSolid;
1110	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1111	if (gc)
1112	{
1113	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1114	ret = true;
1115	XFreeGC (dpy, gc);
1116	}
1117	}
1118	else
1119	{
1120	# if XRENDER
1121	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1122
1123	if (bg_flags & BG_TINT_SET)
1124	tint.get (c);
1125
1126	if (shade <= 100)
1127	{
1128	c.r = c.r * shade / 100;
1129	c.g = c.g * shade / 100;
1130	c.b = c.b * shade / 100;
1131	}
1132	else
1133	{
1134	c.r = c.r * (200 - shade) / 100;
1135	c.g = c.g * (200 - shade) / 100;
1136	c.b = c.b * (200 - shade) / 100;
1137	}
1138
1139	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1140	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1141	XRenderPictureAttributes pa;
1142
1143	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1144
1145	pa.repeat = True;
1146
1147	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1148	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1149	XFreePixmap (dpy, overlay_pmap);
1150
1151	pa.component_alpha = True;
1152	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1153	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1154	XFreePixmap (dpy, mask_pmap);
1155
1156	XRenderColor mask_c;
1157
1158	mask_c.alpha = 0xffff;
1159	mask_c.red =
1160	mask_c.green =
1161	mask_c.blue = 0;
1162	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1163
1164	mask_c.alpha = 0;
1165	mask_c.red = 0xffff - c.r;
1166	mask_c.green = 0xffff - c.g;
1167	mask_c.blue = 0xffff - c.b;
1168	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1169	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1170
1171	if (shade > 100)
1172	{
1173	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1174	mask_c.alpha = 0;
1175	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1176
1177	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1178	}
1179
1180	ret = true;
1181
1182	XRenderFreePicture (dpy, mask_pic);
1183	XRenderFreePicture (dpy, overlay_pic);
1184	XRenderFreePicture (dpy, back_pic);
1185	# endif
1186	}
1187
1188	return ret;
1189	}
1190
1191	/*	440	/*
1192	* Builds a pixmap of the same size as the terminal window that contains	441	* Builds a pixmap of the same size as the terminal window that contains
1193	* the tiled portion of the root pixmap that is supposed to be covered by	442	* the tiled portion of the root pixmap that is supposed to be covered by
1194	* our window.	443	* our window.
1195	*/	444	*/
1196	unsigned long	445	bool
1197	rxvt_term::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
1198	{	447	{
1199	unsigned long result = 0;
1200
1201	/* root dimensions may change from call to call - but Display structure should	448	/* root dimensions may change from call to call - but Display structure should
1202	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
1203	*/	450	*/
1204	int screen = display->screen;	451	int screen = display->screen;
1205	int root_depth = DefaultDepth (dpy, screen);
1206	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
1207	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
1208	unsigned int root_pmap_width, root_pmap_height;
1209	int window_width = szHint.width;	454	int parent_width = szHint.width;
1210	int window_height = szHint.height;	455	int parent_height = szHint.height;
1211	int sx, sy;	456	int sx, sy;
1212	XGCValues gcv;
1213	GC gc;
1214		457
1215	sx = target_x;	458	sx = parent_x;
1216	sy = target_y;	459	sy = parent_y;
1217		460
1218	/* check if we are outside of the visible part of the virtual screen : */	461	/* check if we are outside of the visible part of the virtual screen : */
1219	if (sx + window_width <= 0 || sy + window_height <= 0	462	if (sx + parent_width <= 0 || sy + parent_height <= 0
1220	|| sx >= root_width || sy >= root_height)	463	|| sx >= root_width || sy >= root_height)
1221	return 0;	464	return 0;
1222		465
1223	// validate root pixmap and get its size	466	while (sx < 0) sx += root_img->w;
1224	if (root_pixmap != None)	467	while (sy < 0) sy += root_img->h;
1225	{
1226	Window wdummy;
1227	int idummy;
1228	unsigned int udummy;
1229		468
1230	allowedxerror = -1;	469	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1231		470
1232	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	471	if (root_effects.need_blur ())
1233	root_pixmap = None;	472	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1234		473
1235	allowedxerror = 0;	474	if (root_effects.need_tint ())
1236	}	475	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1237		476
1238	Pixmap recoded_root_pmap = root_pixmap;
1239
1240	if (root_pixmap != None && root_depth != depth)
1241	{
1242	#if XRENDER
1243	if (bg_flags & BG_HAS_RENDER)
1244	{
1245	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1246
1247	XRenderPictureAttributes pa;
1248
1249	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1250	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1251
1252	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	477	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1253	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	478	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1254		479
1255	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	480	delete bg_img;
		481	bg_img = img;
1256		482
1257	XRenderFreePicture (dpy, src);
1258	XRenderFreePicture (dpy, dst);
1259	}
1260	else
1261	#endif
1262	recoded_root_pmap = None;
1263	}
1264
1265	if (recoded_root_pmap == None)
1266	return 0;
1267
1268	if (bg_pixmap == None
1269	|| bg_pmap_width != window_width
1270	|| bg_pmap_height != window_height)
1271	{
1272	if (bg_pixmap)
1273	XFreePixmap (dpy, bg_pixmap);
1274	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1275	bg_pmap_width = window_width;
1276	bg_pmap_height = window_height;
1277	}
1278
1279	/* straightforward pixmap copy */
1280	while (sx < 0) sx += root_width;
1281	while (sy < 0) sy += root_height;
1282
1283	gcv.tile = recoded_root_pmap;
1284	gcv.fill_style = FillTiled;
1285	gcv.ts_x_origin = -sx;
1286	gcv.ts_y_origin = -sy;
1287	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1288
1289	if (gc)
1290	{
1291	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1292	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1293	XFreeGC (dpy, gc);
1294
1295	if (!(bg_flags & BG_CLIENT_RENDER))
1296	{
1297	if ((bg_flags & BG_NEEDS_BLUR)
1298	&& (bg_flags & BG_HAS_RENDER_CONV))
1299	{
1300	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1301	result &= ~BG_NEEDS_BLUR;
1302	}
1303	if ((bg_flags & BG_NEEDS_TINT)
1304	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1305	{
1306	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1307	result &= ~BG_NEEDS_TINT;
1308	}
1309	} /* server side rendering completed */
1310	}
1311
1312	if (recoded_root_pmap != root_pixmap)
1313	XFreePixmap (dpy, recoded_root_pmap);
1314
1315	return result;	483	return true;
1316	}	484	}
1317		485
1318	void	486	void
1319	rxvt_term::bg_set_root_pixmap ()	487	rxvt_term::bg_set_root_pixmap ()
1320	{	488	{
1321	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	489	delete root_img;
1322	if (new_root_pixmap == None)	490	root_img = rxvt_img::new_from_root (this);
1323	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1324
1325	root_pixmap = new_root_pixmap;
1326	}	491	}
1327	# endif /* ENABLE_TRANSPARENCY */	492	# endif /* BG_IMAGE_FROM_ROOT */
1328		493
1329	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	494	void
1330	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1331	# endif
1332
1333	bool
1334	rxvt_term::bg_render ()	495	rxvt_term::bg_render ()
1335	{	496	{
1336	unsigned long tr_flags = 0;	497	if (bg_flags & BG_INHIBIT_RENDER)
		498	return;
1337		499
1338	bg_invalidate ();	500	delete bg_img;
1339	# ifdef ENABLE_TRANSPARENCY	501	bg_img = 0;
		502	bg_flags = 0;
		503
		504	if (!mapped)
		505	return;
		506
		507	# if BG_IMAGE_FROM_ROOT
		508	if (root_img)
		509	if (render_root_image ())
1340	if (bg_flags & BG_IS_TRANSPARENT)	510	bg_flags |= BG_IS_TRANSPARENT;
1341	{
1342	/* we need to re-generate transparency pixmap in that case ! */
1343	tr_flags = make_transparency_pixmap ();
1344	if (tr_flags == 0)
1345	return false;
1346	bg_flags |= BG_IS_VALID;
1347	}
1348	# endif	511	# endif
1349		512
1350	# ifdef BG_IMAGE_FROM_FILE	513	# if BG_IMAGE_FROM_FILE
1351	if ((bg_flags & BG_IS_FROM_FILE)	514	if (fimage.img)
1352	|| (tr_flags & BG_EFFECTS_FLAGS))	515	render_image (fimage);
1353	{
1354	if (render_image (tr_flags))
1355	bg_flags |= BG_IS_VALID;
1356	}
1357	# endif	516	# endif
1358
1359	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1360	XImage *result = NULL;
1361
1362	if (tr_flags & BG_NEEDS_TINT)
1363	{
1364	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1365	}
1366
1367	if (result)
1368	{
1369	/* our own client-side tinting */
1370	//if (tr_flags & BG_NEEDS_TINT)
1371	if (1)
1372	{
1373	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1374	if (bg_flags & BG_TINT_SET)
1375	tint.get (c);
1376	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1377	}
1378
1379	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1380
1381	if (gc)
1382	{
1383	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1384
1385	XFreeGC (dpy, gc);
1386	}
1387
1388	XDestroyImage (result);
1389	}
1390	# endif
1391
1392	if (!(bg_flags & BG_IS_VALID))
1393	{
1394	if (bg_pixmap != None)
1395	{
1396	XFreePixmap (dpy, bg_pixmap);
1397	bg_pixmap = None;
1398	}
1399	}
1400		517
1401	scr_recolour (false);	518	scr_recolour (false);
1402	bg_flags |= BG_NEEDS_REFRESH;	519	bg_flags |= BG_NEEDS_REFRESH;
1403		520
1404	bg_valid_since = ev::now ();	521	bg_valid_since = ev::now ();
1405
1406	return true;
1407	}	522	}
1408		523
1409	void	524	void
1410	rxvt_term::bg_init ()	525	rxvt_term::bg_init ()
1411	{	526	{
1412	#ifdef ENABLE_TRANSPARENCY	527	#if BG_IMAGE_FROM_ROOT
1413	shade = 100;	528	if (option (Opt_transparent))
		529	{
		530	if (rs [Rs_blurradius])
		531	root_effects.set_blur (rs [Rs_blurradius]);
		532
		533	if (ISSET_PIXCOLOR (Color_tint))
		534	root_effects.set_tint (pix_colors_focused [Color_tint]);
		535
		536	if (rs [Rs_shade])
		537	root_effects.set_shade (rs [Rs_shade]);
		538
		539	bg_set_root_pixmap ();
		540	XSelectInput (dpy, display->root, PropertyChangeMask);
		541	rootwin_ev.start (display, display->root);
		542	}
1414	#endif	543	#endif
1415		544
1416	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	545	#if BG_IMAGE_FROM_FILE
1417	#if XRENDER	546	if (rs[Rs_backgroundPixmap])
1418	int major, minor;
1419	if (XRenderQueryVersion (dpy, &major, &minor))
1420	bg_flags |= BG_HAS_RENDER;
1421	XFilters *filters = XRenderQueryFilters (dpy, vt);
1422	if (filters)
1423	{	547	{
1424	for (int i = 0; i < filters->nfilter; i++)	548	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1425	if (!strcmp (filters->filter[i], FilterConvolution))	549	if (!bg_window_position_sensitive ())
1426	bg_flags |= BG_HAS_RENDER_CONV;	550	update_background ();
1427
1428	XFree (filters);
1429	}	551	}
1430	#endif	552	#endif
1431	}	553	}
1432		554
		555	void
		556	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		557	{
		558	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
		559
		560	if (tint_set)
		561	tint.get (c);
		562
		563	if (shade > 100)
		564	{
		565	c.r = c.r * (200 - shade) / 100;
		566	c.g = c.g * (200 - shade) / 100;
		567	c.b = c.b * (200 - shade) / 100;
		568	}
		569	else
		570	{
		571	c.r = c.r * shade / 100;
		572	c.g = c.g * shade / 100;
		573	c.b = c.b * shade / 100;
		574	}
		575
		576	img->contrast (c.r, c.g, c.b, c.a);
		577
		578	if (shade > 100)
		579	{
		580	c.a = 0xffff;
		581	c.r =
		582	c.g =
		583	c.b = 0xffff * (shade - 100) / 100;
		584	img->brightness (c.r, c.g, c.b, c.a);
		585	}
		586	}
		587
1433	#endif /* HAVE_BG_PIXMAP */	588	#endif /* HAVE_BG_PIXMAP */
1434
1435	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1436	/* based on code from aterm-0.4.2 */
1437
1438	static void
1439	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1440	{
1441	int sh_r, sh_g, sh_b;
1442	uint32_t mask_r, mask_g, mask_b;
1443	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1444	rgba low;
1445	rgba high;
1446	int i;
1447	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1448
1449	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1450
1451	/* for convenience */
1452	mask_r = visual->red_mask;
1453	mask_g = visual->green_mask;
1454	mask_b = visual->blue_mask;
1455
1456	/* boring lookup table pre-initialization */
1457	switch (ximage->depth)
1458	{
1459	case 15:
1460	if ((mask_r != 0x7c00) ||
1461	(mask_g != 0x03e0) ||
1462	(mask_b != 0x001f))
1463	return;
1464	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1465	lookup_r = lookup;
1466	lookup_g = lookup+32;
1467	lookup_b = lookup+32+32;
1468	sh_r = 10;
1469	sh_g = 5;
1470	sh_b = 0;
1471	break;
1472	case 16:
1473	if ((mask_r != 0xf800) ||
1474	(mask_g != 0x07e0) ||
1475	(mask_b != 0x001f))
1476	return;
1477	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1478	lookup_r = lookup;
1479	lookup_g = lookup+32;
1480	lookup_b = lookup+32+64;
1481	sh_r = 11;
1482	sh_g = 5;
1483	sh_b = 0;
1484	break;
1485	case 24:
1486	if ((mask_r != 0xff0000) ||
1487	(mask_g != 0x00ff00) ||
1488	(mask_b != 0x0000ff))
1489	return;
1490	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1491	lookup_r = lookup;
1492	lookup_g = lookup+256;
1493	lookup_b = lookup+256+256;
1494	sh_r = 16;
1495	sh_g = 8;
1496	sh_b = 0;
1497	break;
1498	case 32:
1499	if ((mask_r != 0xff0000) ||
1500	(mask_g != 0x00ff00) ||
1501	(mask_b != 0x0000ff))
1502	return;
1503	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1504	lookup_r = lookup;
1505	lookup_g = lookup+256;
1506	lookup_b = lookup+256+256;
1507	sh_r = 16;
1508	sh_g = 8;
1509	sh_b = 0;
1510	break;
1511	default:
1512	return; /* we do not support this color depth */
1513	}
1514
1515	/* prepare limits for color transformation (each channel is handled separately) */
1516	if (shade > 100)
1517	{
1518	shade = 200 - shade;
1519
1520	high.r = c.r * shade / 100;
1521	high.g = c.g * shade / 100;
1522	high.b = c.b * shade / 100;
1523
1524	low.r = 65535 * (100 - shade) / 100;
1525	low.g = 65535 * (100 - shade) / 100;
1526	low.b = 65535 * (100 - shade) / 100;
1527	}
1528	else
1529	{
1530	high.r = c.r * shade / 100;
1531	high.g = c.g * shade / 100;
1532	high.b = c.b * shade / 100;
1533
1534	low.r = low.g = low.b = 0;
1535	}
1536
1537	/* fill our lookup tables */
1538	for (i = 0; i <= mask_r>>sh_r; i++)
1539	{
1540	uint32_t tmp;
1541	tmp = i * high.r;
1542	tmp += (mask_r>>sh_r) * low.r;
1543	lookup_r[i] = (tmp/65535)<<sh_r;
1544	}
1545	for (i = 0; i <= mask_g>>sh_g; i++)
1546	{
1547	uint32_t tmp;
1548	tmp = i * high.g;
1549	tmp += (mask_g>>sh_g) * low.g;
1550	lookup_g[i] = (tmp/65535)<<sh_g;
1551	}
1552	for (i = 0; i <= mask_b>>sh_b; i++)
1553	{
1554	uint32_t tmp;
1555	tmp = i * high.b;
1556	tmp += (mask_b>>sh_b) * low.b;
1557	lookup_b[i] = (tmp/65535)<<sh_b;
1558	}
1559
1560	/* apply table to input image (replacing colors by newly calculated ones) */
1561	if (ximage->bits_per_pixel == 32
1562	&& (ximage->depth == 24 || ximage->depth == 32)
1563	&& ximage->byte_order == host_byte_order)
1564	{
1565	uint32_t *p1, *pf, *p, *pl;
1566	p1 = (uint32_t *) ximage->data;
1567	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1568
1569	while (p1 < pf)
1570	{
1571	p = p1;
1572	pl = p1 + ximage->width;
1573	for (; p < pl; p++)
1574	{
1575	*p = lookup_r[(*p & 0xff0000) >> 16] |
1576	lookup_g[(*p & 0x00ff00) >> 8] |
1577	lookup_b[(*p & 0x0000ff)] |
1578	(*p & 0xff000000);
1579	}
1580	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1581	}
1582	}
1583	else
1584	{
1585	for (int y = 0; y < ximage->height; y++)
1586	for (int x = 0; x < ximage->width; x++)
1587	{
1588	unsigned long pixel = XGetPixel (ximage, x, y);
1589	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1590	lookup_g[(pixel & mask_g) >> sh_g] |
1591	lookup_b[(pixel & mask_b) >> sh_b];
1592	XPutPixel (ximage, x, y, pixel);
1593	}
1594	}
1595
1596	free (lookup);
1597	}
1598	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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