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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.187 by sf-exg, Wed Dec 28 13:13:33 2011 UTC vs.
Revision 1.248 by sf-exg, Sun Dec 30 11:34:43 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 (option (Opt_transparent))
		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 (option (Opt_transparent))
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 = 0;	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_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"))	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=keep-aspect"))	157	else if (!strcasecmp (arr[i], "op=keep-aspect"))
233	new_flags |= BG_KEEP_ASPECT;	158	new_flags |= IM_KEEP_ASPECT;
234	else if (!strcasecmp (arr[i], "op=root-align"))	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_KEEP_ASPECT;	171	new_flags |= IM_KEEP_ASPECT;
247	w = h = windowScale;	172	w = h = windowScale;
248	geom_flags |= WidthValue|HeightValue;	173	geom_flags |= WidthValue|HeightValue;
249	}	174	}
250	else if (!strcasecmp (arr[i], "hscale"))	175	else if (!strcasecmp (arr[i], "hscale"))
251	{	176	{
252	new_flags |= BG_TILE;	177	new_flags |= IM_TILE;
253	w = windowScale;	178	w = windowScale;
254	h = noScale;	179	h = noScale;
255	geom_flags |= WidthValue|HeightValue;	180	geom_flags |= WidthValue|HeightValue;
256	}	181	}
257	else if (!strcasecmp (arr[i], "vscale"))	182	else if (!strcasecmp (arr[i], "vscale"))
258	{	183	{
259	new_flags |= BG_TILE;	184	new_flags |= IM_TILE;
260	h = windowScale;	185	h = windowScale;
261	w = noScale;	186	w = noScale;
262	geom_flags |= WidthValue|HeightValue;	187	geom_flags |= WidthValue|HeightValue;
263	}	188	}
264	else if (!strcasecmp (arr[i], "scale"))	189	else if (!strcasecmp (arr[i], "scale"))
…		…
272	x = y = centerAlign;	197	x = y = centerAlign;
273	geom_flags |= WidthValue|HeightValue|XValue|YValue;	198	geom_flags |= WidthValue|HeightValue|XValue|YValue;
274	}	199	}
275	else if (!strcasecmp (arr[i], "root"))	200	else if (!strcasecmp (arr[i], "root"))
276	{	201	{
277	new_flags |= BG_TILE|BG_ROOT_ALIGN;	202	new_flags |= IM_TILE|IM_ROOT_ALIGN;
278	w = h = noScale;	203	w = h = noScale;
279	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
280	}	205	}
281		206
282	else	207	else
…		…
284	} /* done parsing ops */	209	} /* done parsing ops */
285		210
286	rxvt_free_strsplit (arr);	211	rxvt_free_strsplit (arr);
287	}	212	}
288		213
289	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;	214	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
290		215
291	if (!update)	216	if (!update)
292	{	217	{
293	if (!(geom_flags & XValue))	218	if (!(geom_flags & XValue))
294	x = y = defaultAlign;	219	x = y = defaultAlign;
…		…
299	w = h = defaultScale;	224	w = h = defaultScale;
300	else if (!(geom_flags & HeightValue))	225	else if (!(geom_flags & HeightValue))
301	h = w;	226	h = w;
302	else if (!(geom_flags & WidthValue))	227	else if (!(geom_flags & WidthValue))
303	w = h;	228	w = h;
304
305	geom_flags |= WidthValue|HeightValue|XValue|YValue;
306	}
307
308	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
309	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
310	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
311	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
312
313	if (new_flags != bg_flags)
314	{	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	{
315	bg_flags = new_flags;	240	flags = new_flags;
		241	h_scale = w;
		242	v_scale = h;
		243	h_align = x;
		244	v_align = y;
316	changed = true;	245	changed = true;
317	}	246	}
318		247
		248	if (is_size_sensitive ())
		249	flags |= IM_IS_SIZE_SENSITIVE;
		250	else
		251	flags &= ~IM_IS_SIZE_SENSITIVE;
		252
319	return changed;	253	return changed;
320	}	254	}
321		255
322	void	256	void
323	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)
324	{	258	{
		259	int image_width = image.img->w;
		260	int image_height = image.img->h;
325	int target_width = szHint.width;	261	int parent_width = szHint.width;
326	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);
327		265
328	w = h_scale * target_width / 100;	266	w = h_scale * parent_width / 100;
329	h = v_scale * target_height / 100;	267	h = v_scale * parent_height / 100;
330		268
331	if (bg_flags & BG_KEEP_ASPECT)	269	if (image.flags & IM_KEEP_ASPECT)
332	{	270	{
333	float scale = (float)w / image_width;	271	float scale = (float)w / image_width;
334	min_it (scale, (float)h / image_height);	272	min_it (scale, (float)h / image_height);
335	w = image_width * scale + 0.5;	273	w = image_width * scale + 0.5;
336	h = image_height * scale + 0.5;	274	h = image_height * scale + 0.5;
337	}	275	}
338		276
339	if (!w) w = image_width;	277	if (!w) w = image_width;
340	if (!h) h = image_height;	278	if (!h) h = image_height;
341		279
342	if (bg_flags & BG_ROOT_ALIGN)	280	if (image.flags & IM_ROOT_ALIGN)
343	{	281	{
344	x = -target_x;	282	x = -parent_x;
345	y = -target_y;	283	y = -parent_y;
346	}	284	}
347	else	285	else
348	{	286	{
349	x = make_align_position (h_align, target_width, w);	287	x = make_align_position (image.h_align, parent_width, w);
350	y = make_align_position (v_align, target_height, h);	288	y = make_align_position (image.v_align, parent_height, h);
351	}
352
353	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
354	if (!(bg_flags & BG_TILE)
355	|| h_scale || v_scale
356	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
357	|| w > target_width || h > target_height)
358	bg_flags |= BG_IS_SIZE_SENSITIVE;
359	}
360
361	# ifdef HAVE_AFTERIMAGE
362	bool
363	rxvt_term::render_image (unsigned long tr_flags)
364	{
365	init_asv ();
366
367	ASImage *background = NULL;
368	ARGB32 background_tint = TINT_LEAVE_SAME;
369
370	# ifdef ENABLE_TRANSPARENCY
371	if (tr_flags)
372	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
373
374	if (tr_flags & BG_NEEDS_TINT)
375	{	289	}
376	ShadingInfo as_shade;	290	}
377	as_shade.shading = shade;
378		291
379	rgba c;	292	bool
380	tint.get (c);	293	rxvt_term::render_image (rxvt_image &image)
381	as_shade.tintColor.red = c.r;	294	{
382	as_shade.tintColor.green = c.g;
383	as_shade.tintColor.blue = c.b;
384
385	background_tint = shading2tint32 (&as_shade);
386	}
387
388	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
389	{
390	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
391	ASA_XImage,
392	100, ASIMAGE_QUALITY_DEFAULT);
393	if (tmp)
394	{
395	destroy_asimage (&background);
396	background = tmp;
397	}
398	}
399	# endif
400
401	ASImage *result = 0;
402
403	int target_width = szHint.width;	295	int parent_width = szHint.width;
404	int target_height = szHint.height;	296	int parent_height = szHint.height;
405	int new_pmap_width = target_width;
406	int new_pmap_height = target_height;
407		297
408	int x = 0;	298	int x = 0;
409	int y = 0;	299	int y = 0;
410	int w = 0;	300	int w = 0;
411	int h = 0;	301	int h = 0;
412		302
413	if (original_asim)	303	get_image_geometry (image, w, h, x, y);
414	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
415		304
416	if (!original_asim
417	|| (!(bg_flags & BG_ROOT_ALIGN)
418	&& (x >= target_width
419	|| y >= target_height
420	|| x + w <= 0
421	|| y + h <= 0)))
422	{
423	if (background)
424	{
425	new_pmap_width = background->width;
426	new_pmap_height = background->height;
427	result = background;
428
429	if (background_tint != TINT_LEAVE_SAME)
430	{
431	ASImage *tmp = tile_asimage (asv, background, 0, 0,
432	target_width, target_height, background_tint,
433	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
434	if (tmp)
435	result = tmp;
436	}
437	}
438	else
439	new_pmap_width = new_pmap_height = 0;
440	}
441	else
442	{
443	result = original_asim;
444
445	if (w != original_asim->width
446	|| h != original_asim->height)
447	{
448	result = scale_asimage (asv, original_asim,
449	w, h,
450	ASA_XImage,
451	100, ASIMAGE_QUALITY_DEFAULT);
452	}
453
454	if (background == NULL)
455	{
456	if (bg_flags & BG_TILE)
457	{
458	/* if tiling - pixmap has to be sized exactly as the image,
459	but there is no need to make it bigger than the window! */
460	new_pmap_width = min (result->width, target_width);
461	new_pmap_height = min (result->height, target_height);
462
463	/* we also need to tile our image in both directions */
464	ASImage *tmp = tile_asimage (asv, result,
465	(int)result->width - x,
466	(int)result->height - y,
467	new_pmap_width,
468	new_pmap_height,
469	TINT_LEAVE_SAME, ASA_XImage,
470	100, ASIMAGE_QUALITY_DEFAULT);
471	if (tmp)
472	{
473	if (result != original_asim)
474	destroy_asimage (&result);
475
476	result = tmp;
477	}
478	}
479	}
480	else
481	{
482	/* if blending background and image - pixmap has to be sized same as target window */
483	ASImageLayer *layers = create_image_layers (2);
484
485	layers[0].im = background;
486	layers[0].clip_width = target_width;
487	layers[0].clip_height = target_height;
488	layers[0].tint = background_tint;
489	layers[1].im = result;
490
491	if (bg_flags & BG_TILE)
492	{
493	/* tile horizontally */
494	while (x > 0) x -= (int)result->width;
495	layers[1].dst_x = x;
496	layers[1].clip_width = result->width+target_width;
497	}
498	else
499	{
500	/* clip horizontally */
501	layers[1].dst_x = x;
502	layers[1].clip_width = result->width;
503	}
504
505	if (bg_flags & BG_TILE)
506	{
507	while (y > 0) y -= (int)result->height;
508	layers[1].dst_y = y;
509	layers[1].clip_height = result->height + target_height;
510	}
511	else
512	{
513	layers[1].dst_y = y;
514	layers[1].clip_height = result->height;
515	}
516
517	if (rs[Rs_blendtype])
518	{
519	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
520	if (layers[1].merge_scanlines == NULL)
521	layers[1].merge_scanlines = alphablend_scanlines;
522	}
523
524	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
525	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
526
527	if (tmp)
528	{
529	if (result != original_asim)
530	destroy_asimage (&result);
531
532	result = tmp;
533	}
534
535	free (layers);
536	}
537	}
538
539	bool ret = false;
540
541	if (result)
542	{
543	XGCValues gcv;
544	GC gc;
545
546	/* create Pixmap */
547	if (bg_pixmap == None
548	|| bg_pmap_width != new_pmap_width
549	|| bg_pmap_height != new_pmap_height)
550	{
551	if (bg_pixmap)
552	XFreePixmap (dpy, bg_pixmap);
553	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
554	bg_pmap_width = new_pmap_width;
555	bg_pmap_height = new_pmap_height;
556	}
557	/* fill with background color (if result's not completely overlapping it) */
558	gcv.foreground = pix_colors[Color_bg];
559	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
560
561	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
562	int dst_width = result->width, dst_height = result->height;
563	if (background == NULL)
564	{
565	if (!(bg_flags & BG_TILE))
566	{
567	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
568	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
569	}
570
571	if (dst_x > 0 || dst_y > 0
572	|| dst_x + dst_width < new_pmap_width
573	|| dst_y + dst_height < new_pmap_height)
574	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
575	}
576
577	/* put result on pixmap */
578	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
579	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
580
581	if (result != background && result != original_asim)
582	destroy_asimage (&result);
583
584	XFreeGC (dpy, gc);
585
586	ret = true;
587	}
588
589	if (background)
590	destroy_asimage (&background);
591
592	return ret;
593	}
594	# endif /* HAVE_AFTERIMAGE */
595
596	# ifdef HAVE_PIXBUF
597	bool
598	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
599	int src_x, int src_y, int dst_x, int dst_y,
600	unsigned int width, unsigned int height)
601	{
602	XImage *ximage;
603	char *data, *line;
604	int bytes_per_pixel;
605	int width_r, width_g, width_b;
606	int sh_r, sh_g, sh_b;
607	int rowstride;
608	int channels;
609	unsigned char *row;
610
611	if (visual->c_class != TrueColor)
612	return false;
613
614	if (depth == 24 || depth == 32)
615	bytes_per_pixel = 4;
616	else if (depth == 15 || depth == 16)
617	bytes_per_pixel = 2;
618	else
619	return false;
620
621	width_r = ecb_popcount32 (visual->red_mask);
622	width_g = ecb_popcount32 (visual->green_mask);
623	width_b = ecb_popcount32 (visual->blue_mask);
624
625	if (width_r > 8 || width_g > 8 || width_b > 8)
626	return false;
627
628	sh_r = ecb_ctz32 (visual->red_mask);
629	sh_g = ecb_ctz32 (visual->green_mask);
630	sh_b = ecb_ctz32 (visual->blue_mask);
631
632	if (width > INT_MAX / height / bytes_per_pixel)
633	return false;
634
635	data = (char *)malloc (width * height * bytes_per_pixel);
636	if (!data)
637	return false;
638
639	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
640	width, height, bytes_per_pixel * 8, 0);
641	if (!ximage)
642	{
643	free (data);
644	return false;
645	}
646
647	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
648
649	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
650	channels = gdk_pixbuf_get_n_channels (pixbuf);
651	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
652	line = data;
653
654	for (int y = 0; y < height; y++)
655	{
656	for (int x = 0; x < width; x++)
657	{
658	unsigned char *pixel = row + x * channels;
659	uint32_t value;
660
661	value = ((pixel[0] >> (8 - width_r)) << sh_r)
662	| ((pixel[1] >> (8 - width_g)) << sh_g)
663	| ((pixel[2] >> (8 - width_b)) << sh_b);
664
665	if (bytes_per_pixel == 4)
666	((uint32_t *)line)[x] = value;
667	else
668	((uint16_t *)line)[x] = value;
669	}
670
671	row += rowstride;
672	line += ximage->bytes_per_line;
673	}
674
675	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
676	XDestroyImage (ximage);
677	return true;
678	}
679
680	bool
681	rxvt_term::render_image (unsigned long tr_flags)
682	{
683	if (!pixbuf)
684	return false;
685
686	if (tr_flags
687	&& !(bg_flags & BG_HAS_RENDER))
688	return false;
689
690	GdkPixbuf *result;
691
692	int image_width = gdk_pixbuf_get_width (pixbuf);
693	int image_height = gdk_pixbuf_get_height (pixbuf);
694
695	int target_width = szHint.width;
696	int target_height = szHint.height;
697	int new_pmap_width = target_width;
698	int new_pmap_height = target_height;
699
700	int x = 0;
701	int y = 0;
702	int w = 0;
703	int h = 0;
704
705	get_image_geometry (image_width, image_height, w, h, x, y);
706
707	if (!(bg_flags & BG_ROOT_ALIGN)	305	if (!(image.flags & IM_ROOT_ALIGN)
708	&& (x >= target_width	306	&& (x >= parent_width
709	|| y >= target_height	307	|| y >= parent_height
710	|| x + w <= 0	308	|| x + w <= 0
711	|| y + h <= 0))	309	|| y + h <= 0))
712	return false;	310	return false;
713		311
714	result = pixbuf;	312	rxvt_img *img = image.img->scale (w, h);
715		313
716	if (w != image_width	314	if (image.flags & IM_TILE)
717	|| h != image_height)	315	img->repeat_mode (RepeatNormal);
718	{
719	result = gdk_pixbuf_scale_simple (pixbuf,
720	w, h,
721	GDK_INTERP_BILINEAR);
722	}
723
724	if (!result)
725	return false;
726
727	bool ret = false;
728
729	XGCValues gcv;
730	GC gc;
731	Pixmap root_pmap;
732
733	image_width = gdk_pixbuf_get_width (result);
734	image_height = gdk_pixbuf_get_height (result);
735
736	if (tr_flags)
737	{
738	root_pmap = bg_pixmap;
739	bg_pixmap = None;
740	}
741	else	316	else
742	{	317	img->repeat_mode (RepeatNone);
		318	img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
		319
743	if (bg_flags & BG_TILE)	320	if (bg_flags & BG_IS_VALID)
744	{	321	img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
745	new_pmap_width = min (image_width, target_width);
746	new_pmap_height = min (image_height, target_height);
747	}
748	}
749		322
750	if (bg_pixmap == None
751	|| bg_pmap_width != new_pmap_width
752	|| bg_pmap_height != new_pmap_height)
753	{
754	if (bg_pixmap)
755	XFreePixmap (dpy, bg_pixmap);
756	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
757	bg_pmap_width = new_pmap_width;
758	bg_pmap_height = new_pmap_height;
759	}
760
761	gcv.foreground = pix_colors[Color_bg];
762	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
763
764	if (gc)
765	{
766	if (bg_flags & BG_TILE)
767	{
768	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
769	pixbuf_to_pixmap (result, tile, gc,
770	0, 0,
771	0, 0,
772	image_width, image_height);
773
774	gcv.tile = tile;
775	gcv.fill_style = FillTiled;
776	gcv.ts_x_origin = x;
777	gcv.ts_y_origin = y;
778	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
779
780	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
781	XFreePixmap (dpy, tile);
782	}
783	else
784	{
785	int src_x, src_y, dst_x, dst_y;
786	int dst_width, dst_height;
787
788	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
789	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
790
791	if (dst_x > 0 || dst_y > 0
792	|| dst_x + dst_width < new_pmap_width
793	|| dst_y + dst_height < new_pmap_height)
794	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
795
796	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
797	pixbuf_to_pixmap (result, bg_pixmap, gc,
798	src_x, src_y,
799	dst_x, dst_y,
800	dst_width, dst_height);
801	}
802
803	#if XRENDER
804	if (tr_flags)
805	{
806	XRenderPictureAttributes pa;
807
808	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	323	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
809	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	324	img->convert_format (format, pix_colors [Color_bg])->replace (img);
810		325
811	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	326	delete bg_img;
812	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	327	bg_img = img;
813		328
814	pa.repeat = True;
815	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
816	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
817	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
818	XFreePixmap (dpy, mask_pmap);
819
820	XRenderColor mask_c;
821
822	mask_c.alpha = 0x8000;
823	mask_c.red = 0;
824	mask_c.green = 0;
825	mask_c.blue = 0;
826	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
827	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
828
829	XRenderFreePicture (dpy, src);
830	XRenderFreePicture (dpy, dst);
831	XRenderFreePicture (dpy, mask);
832	}
833	#endif
834
835	XFreeGC (dpy, gc);
836
837	ret = true;
838	}
839
840	if (result != pixbuf)
841	g_object_unref (result);
842
843	if (tr_flags)
844	XFreePixmap (dpy, root_pmap);
845
846	return ret;	329	return true;
847	}	330	}
848	# endif /* HAVE_PIXBUF */
849		331
850	bool	332	rxvt_image::rxvt_image ()
851	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)
852	{	346	{
853	if (!file || !*file)	347	if (!file || !*file)
854	return false;	348	return;
855		349
856	bool ret = false;
857	const char *p = strchr (file, ';');	350	const char *p = strchr (file, ';');
858		351
859	if (p)	352	if (p)
860	{	353	{
861	size_t len = p - file;	354	size_t len = p - file;
…		…
863	memcpy (f, file, len);	356	memcpy (f, file, len);
864	f[len] = '\0';	357	f[len] = '\0';
865	file = f;	358	file = f;
866	}	359	}
867		360
868	# ifdef HAVE_AFTERIMAGE	361	set_file (s, file);
869	if (!asimman)	362	alpha = 0x8000;
870	asimman = create_generic_imageman (rs[Rs_path]);	363	set_geometry (p ? p + 1 : "");
871	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	364	}
872	if (image)
873	{
874	if (original_asim)
875	safe_asimage_destroy (original_asim);
876	original_asim = image;
877	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
878	ret = true;
879	}
880	# endif
881		365
882	# ifdef HAVE_PIXBUF	366	void
883	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);	367	rxvt_image::set_file (rxvt_screen *s, const char *file)
884	if (image)	368	{
885	{	369	rxvt_img *img2 = rxvt_img::new_from_file (s, file);
886	if (pixbuf)	370	delete img;
887	g_object_unref (pixbuf);	371	img = img2;
888	pixbuf = image;
889	bg_flags |= BG_IS_FROM_FILE;
890	ret = true;
891	}
892	# endif
893
894	if (ret)
895	{
896	if (p)
897	bg_set_geometry (p + 1);
898	else
899	bg_set_default_geometry ();
900	}
901
902	return ret;
903	}	372	}
904		373
905	# endif /* BG_IMAGE_FROM_FILE */	374	# endif /* BG_IMAGE_FROM_FILE */
906		375
907	# ifdef ENABLE_TRANSPARENCY
908	bool	376	bool
909	rxvt_term::bg_set_transparent ()	377	image_effects::set_blur (const char *geom)
910	{
911	if (!(bg_flags & BG_IS_TRANSPARENT))
912	{
913	bg_flags |= BG_IS_TRANSPARENT;
914	return true;
915	}
916
917	return false;
918	}
919
920	bool
921	rxvt_term::bg_set_blur (const char *geom)
922	{	378	{
923	bool changed = false;	379	bool changed = false;
924	unsigned int hr, vr;	380	unsigned int hr, vr;
925	int junk;	381	int junk;
926	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	382	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
943	{	399	{
944	changed = true;	400	changed = true;
945	v_blurRadius = vr;	401	v_blurRadius = vr;
946	}	402	}
947		403
948	if (v_blurRadius == 0 && h_blurRadius == 0)
949	bg_flags &= ~BG_NEEDS_BLUR;
950	else
951	bg_flags |= BG_NEEDS_BLUR;
952
953	return changed;	404	return changed;
954	}	405	}
955		406
956	void
957	rxvt_term::set_tint_shade_flags ()
958	{
959	rgba c;
960	bool has_shade = shade != 100;
961
962	bg_flags &= ~BG_TINT_FLAGS;
963
964	tint.get (c);
965
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	if (has_shade
973	|| c.r < 0xff00
974	|| c.g < 0xff00
975	|| c.b < 0xff00)
976	bg_flags |= BG_NEEDS_TINT;
977	}
978
979	bool	407	bool
980	rxvt_term::bg_set_tint (rxvt_color &new_tint)	408	image_effects::set_tint (const rxvt_color &new_tint)
981	{	409	{
982	if (tint != new_tint)	410	if (!tint_set || tint != new_tint)
983	{	411	{
984	tint = new_tint;	412	tint = new_tint;
985	set_tint_shade_flags ();	413	tint_set = true;
		414
986	return true;	415	return true;
987	}	416	}
988		417
989	return false;	418	return false;
990	}	419	}
991		420
992	bool	421	bool
993	rxvt_term::bg_set_shade (const char *shade_str)	422	image_effects::set_shade (const char *shade_str)
994	{	423	{
995	int new_shade = atoi (shade_str);	424	int new_shade = atoi (shade_str);
996		425
997	clamp_it (new_shade, -100, 200);	426	clamp_it (new_shade, -100, 200);
998	if (new_shade < 0)	427	if (new_shade < 0)
999	new_shade = 200 - (100 + new_shade);	428	new_shade = 200 - (100 + new_shade);
1000		429
1001	if (new_shade != shade)	430	if (new_shade != shade)
1002	{	431	{
1003	shade = new_shade;	432	shade = new_shade;
1004	set_tint_shade_flags ();
1005	return true;	433	return true;
1006	}	434	}
1007		435
1008	return false;	436	return false;
1009	}	437	}
1010		438
1011	#if XRENDER	439	# if BG_IMAGE_FROM_ROOT
1012	static void
1013	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1014	{
1015	double sigma = radius / 2.0;
1016	double scale = sqrt (2.0 * M_PI) * sigma;
1017	double sum = 0.0;
1018
1019	for (int i = 0; i < width; i++)
1020	{
1021	double x = i - width / 2;
1022	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1023	sum += kernel[i];
1024	}
1025
1026	params[0] = XDoubleToFixed (width);
1027	params[1] = XDoubleToFixed (1);
1028
1029	for (int i = 0; i < width; i++)
1030	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1031	}
1032	#endif
1033
1034	bool
1035	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1036	{
1037	bool ret = false;
1038	#if XRENDER
1039	if (!(bg_flags & BG_HAS_RENDER_CONV))
1040	return false;
1041
1042	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1043	double *kernel = (double *)malloc (size * sizeof (double));
1044	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1045
1046	XRenderPictureAttributes pa;
1047	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1048
1049	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1050	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1051
1052	if (kernel && params)
1053	{
1054	if (h_blurRadius)
1055	{
1056	size = h_blurRadius * 2 + 1;
1057	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1058
1059	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1060	XRenderComposite (dpy,
1061	PictOpSrc,
1062	src,
1063	None,
1064	dst,
1065	0, 0,
1066	0, 0,
1067	0, 0,
1068	width, height);
1069	}
1070
1071	if (v_blurRadius)
1072	{
1073	size = v_blurRadius * 2 + 1;
1074	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1075	::swap (params[0], params[1]);
1076
1077	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1078	XRenderComposite (dpy,
1079	PictOpSrc,
1080	src,
1081	None,
1082	dst,
1083	0, 0,
1084	0, 0,
1085	0, 0,
1086	width, height);
1087	}
1088
1089	ret = true;
1090	}
1091
1092	free (kernel);
1093	free (params);
1094	XRenderFreePicture (dpy, src);
1095	XRenderFreePicture (dpy, dst);
1096	#endif
1097	return ret;
1098	}
1099
1100	bool
1101	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1102	{
1103	bool ret = false;
1104
1105	if (bg_flags & BG_TINT_BITAND)
1106	{
1107	XGCValues gcv;
1108	GC gc;
1109
1110	/* In this case we can tint image server-side getting significant
1111	* performance improvements, as we eliminate XImage transfer
1112	*/
1113	gcv.foreground = Pixel (tint);
1114	gcv.function = GXand;
1115	gcv.fill_style = FillSolid;
1116	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1117	if (gc)
1118	{
1119	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1120	ret = true;
1121	XFreeGC (dpy, gc);
1122	}
1123	}
1124	# if XRENDER
1125	else if (bg_flags & BG_HAS_RENDER)
1126	{
1127	rgba c;
1128
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	/*	440	/*
1197	* 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
1198	* 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
1199	* our window.	443	* our window.
1200	*/	444	*/
1201	unsigned long	445	bool
1202	rxvt_term::make_transparency_pixmap ()	446	rxvt_term::render_root_image ()
1203	{	447	{
1204	unsigned long result = 0;
1205
1206	/* 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
1207	* be always up-to-date, so let's use it :	449	* be always up-to-date, so let's use it :
1208	*/	450	*/
1209	int screen = display->screen;	451	int screen = display->screen;
1210	int root_depth = DefaultDepth (dpy, screen);
1211	int root_width = DisplayWidth (dpy, screen);	452	int root_width = DisplayWidth (dpy, screen);
1212	int root_height = DisplayHeight (dpy, screen);	453	int root_height = DisplayHeight (dpy, screen);
1213	unsigned int root_pmap_width, root_pmap_height;
1214	int window_width = szHint.width;	454	int parent_width = szHint.width;
1215	int window_height = szHint.height;	455	int parent_height = szHint.height;
1216	int sx, sy;	456	int sx, sy;
1217	XGCValues gcv;
1218	GC gc;
1219		457
1220	sx = target_x;	458	sx = parent_x;
1221	sy = target_y;	459	sy = parent_y;
		460
		461	if (!root_img)
		462	return false;
1222		463
1223	/* check if we are outside of the visible part of the virtual screen : */	464	/* check if we are outside of the visible part of the virtual screen : */
1224	if (sx + window_width <= 0 || sy + window_height <= 0	465	if (sx + parent_width <= 0 || sy + parent_height <= 0
1225	|| sx >= root_width || sy >= root_height)	466	|| sx >= root_width || sy >= root_height)
1226	return 0;	467	return 0;
1227		468
1228	// validate root pixmap and get its size	469	while (sx < 0) sx += root_img->w;
1229	if (root_pixmap != None)	470	while (sy < 0) sy += root_img->h;
1230	{
1231	Window wdummy;
1232	int idummy;
1233	unsigned int udummy;
1234		471
1235	allowedxerror = -1;	472	rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
1236		473
1237	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	474	if (root_effects.need_blur ())
1238	root_pixmap = None;	475	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1239		476
1240	allowedxerror = 0;	477	if (root_effects.need_tint ())
1241	}	478	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1242		479
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);	480	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1258	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	481	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1259		482
1260	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	483	delete bg_img;
		484	bg_img = img;
1261		485
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;	486	return true;
1319	}	487	}
1320		488
1321	void	489	void
1322	rxvt_term::bg_set_root_pixmap ()	490	rxvt_term::bg_set_root_pixmap ()
1323	{	491	{
1324	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	492	delete root_img;
1325	if (new_root_pixmap == None)	493	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	}	494	}
1330	# endif /* ENABLE_TRANSPARENCY */	495	# endif /* BG_IMAGE_FROM_ROOT */
1331		496
1332	bool	497	void
1333	rxvt_term::bg_render ()	498	rxvt_term::bg_render ()
1334	{	499	{
1335	unsigned long tr_flags = 0;	500	if (bg_flags & BG_INHIBIT_RENDER)
		501	return;
1336		502
1337	bg_invalidate ();	503	bg_invalidate ();
1338	# ifdef ENABLE_TRANSPARENCY	504	# if BG_IMAGE_FROM_ROOT
1339	if (bg_flags & BG_IS_TRANSPARENT)	505	if (option (Opt_transparent))
1340	{	506	{
1341	/* we need to re-generate transparency pixmap in that case ! */	507	/* we need to re-generate transparency pixmap in that case ! */
1342	tr_flags = make_transparency_pixmap ();	508	if (render_root_image ())
1343	if (tr_flags == 0)	509	bg_flags |= BG_IS_VALID | BG_IS_TRANSPARENT;
1344	return false;
1345	bg_flags |= BG_IS_VALID;
1346	}	510	}
1347	# endif	511	# endif
1348		512
1349	# ifdef BG_IMAGE_FROM_FILE	513	# if BG_IMAGE_FROM_FILE
1350	if ((bg_flags & BG_IS_FROM_FILE)	514	if (fimage.img)
1351	|| (tr_flags & BG_EFFECTS_FLAGS))
1352	{	515	{
1353	if (render_image (tr_flags))	516	if (render_image (fimage))
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)
1359	XImage *result = NULL;
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	}
1365
1366	if (result)
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	}
1384	# endif
1385
1386	if (!(bg_flags & BG_IS_VALID))	521	if (!(bg_flags & BG_IS_VALID))
1387	{	522	{
1388	if (bg_pixmap != None)	523	delete bg_img;
1389	{	524	bg_img = 0;
1390	XFreePixmap (dpy, bg_pixmap);
1391	bg_pixmap = None;
1392	}
1393	}	525	}
1394		526
1395	scr_recolour (false);	527	scr_recolour (false);
1396	bg_flags |= BG_NEEDS_REFRESH;	528	bg_flags |= BG_NEEDS_REFRESH;
1397		529
1398	bg_valid_since = ev::now ();	530	bg_valid_since = ev::now ();
1399
1400	return true;
1401	}	531	}
1402		532
1403	void	533	void
1404	rxvt_term::bg_init ()	534	rxvt_term::bg_init ()
1405	{	535	{
1406	#ifdef ENABLE_TRANSPARENCY	536	#if BG_IMAGE_FROM_ROOT
		537	if (option (Opt_transparent))
		538	{
		539	if (rs [Rs_blurradius])
		540	root_effects.set_blur (rs [Rs_blurradius]);
		541
		542	if (ISSET_PIXCOLOR (Color_tint))
		543	root_effects.set_tint (pix_colors_focused [Color_tint]);
		544
		545	if (rs [Rs_shade])
		546	root_effects.set_shade (rs [Rs_shade]);
		547
		548	bg_set_root_pixmap ();
		549	XSelectInput (dpy, display->root, PropertyChangeMask);
		550	rootwin_ev.start (display, display->root);
		551	}
		552	#endif
		553
		554	#if BG_IMAGE_FROM_FILE
		555	if (rs[Rs_backgroundPixmap])
		556	{
		557	fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
		558	if (!bg_window_position_sensitive ())
		559	update_background ();
		560	}
		561	#endif
		562	}
		563
		564	void
		565	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
		566	{
1407	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	567	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1408	tint.set (this, c);
1409	shade = 100;
1410	#endif
1411		568
1412	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	569	if (tint_set)
1413	#if XRENDER
1414	int major, minor;
1415	if (XRenderQueryVersion (dpy, &major, &minor))
1416	bg_flags |= BG_HAS_RENDER;
1417	XFilters *filters = XRenderQueryFilters (dpy, vt);
1418	if (filters)
1419	{
1420	for (int i = 0; i < filters->nfilter; i++)
1421	if (!strcmp (filters->filter[i], FilterConvolution))
1422	bg_flags |= BG_HAS_RENDER_CONV;
1423
1424	XFree (filters);
1425	}
1426	#endif
1427	}
1428
1429	#endif /* HAVE_BG_PIXMAP */
1430
1431	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1432	/* based on code from aterm-0.4.2 */
1433
1434	static inline void
1435	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1436	{
1437	for (int i = 0; i <= mask >> sh; i++)
1438	{
1439	uint32_t tmp;
1440	tmp = i * high;
1441	tmp += (mask >> sh) * low;
1442	lookup[i] = (tmp / 0xffff) << sh;
1443	}
1444	}
1445
1446	void
1447	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)
1448	{
1449	int sh_r, sh_g, sh_b;
1450	uint32_t mask_r, mask_g, mask_b;
1451	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1452	unsigned short low;
1453	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1454
1455	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1456
1457	/* for convenience */
1458	mask_r = visual->red_mask;
1459	mask_g = visual->green_mask;
1460	mask_b = visual->blue_mask;
1461
1462	/* boring lookup table pre-initialization */
1463	switch (ximage->depth)
1464	{
1465	case 15:
1466	if ((mask_r != 0x7c00) ||
1467	(mask_g != 0x03e0) ||
1468	(mask_b != 0x001f))
1469	return;
1470	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1471	lookup_r = lookup;
1472	lookup_g = lookup+32;
1473	lookup_b = lookup+32+32;
1474	sh_r = 10;
1475	sh_g = 5;
1476	sh_b = 0;
1477	break;
1478	case 16:
1479	if ((mask_r != 0xf800) ||
1480	(mask_g != 0x07e0) ||
1481	(mask_b != 0x001f))
1482	return;
1483	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1484	lookup_r = lookup;
1485	lookup_g = lookup+32;
1486	lookup_b = lookup+32+64;
1487	sh_r = 11;
1488	sh_g = 5;
1489	sh_b = 0;
1490	break;
1491	case 24:
1492	if ((mask_r != 0xff0000) ||
1493	(mask_g != 0x00ff00) ||
1494	(mask_b != 0x0000ff))
1495	return;
1496	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1497	lookup_r = lookup;
1498	lookup_g = lookup+256;
1499	lookup_b = lookup+256+256;
1500	sh_r = 16;
1501	sh_g = 8;
1502	sh_b = 0;
1503	break;
1504	case 32:
1505	if ((mask_r != 0xff0000) ||
1506	(mask_g != 0x00ff00) ||
1507	(mask_b != 0x0000ff))
1508	return;
1509	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1510	lookup_r = lookup;
1511	lookup_g = lookup+256;
1512	lookup_b = lookup+256+256;
1513	sh_r = 16;
1514	sh_g = 8;
1515	sh_b = 0;
1516	break;
1517	default:
1518	return; /* we do not support this color depth */
1519	}
1520
1521	rgba c;
1522
1523	tint.get (c);	570	tint.get (c);
1524		571
1525	/* prepare limits for color transformation (each channel is handled separately) */
1526	if (shade > 100)	572	if (shade > 100)
1527	{	573	{
1528	c.r = c.r * (200 - shade) / 100;	574	c.r = c.r * (200 - shade) / 100;
1529	c.g = c.g * (200 - shade) / 100;	575	c.g = c.g * (200 - shade) / 100;
1530	c.b = c.b * (200 - shade) / 100;	576	c.b = c.b * (200 - shade) / 100;
1531
1532	low = 0xffff * (shade - 100) / 100;
1533	}	577	}
1534	else	578	else
1535	{	579	{
1536	c.r = c.r * shade / 100;	580	c.r = c.r * shade / 100;
1537	c.g = c.g * shade / 100;	581	c.g = c.g * shade / 100;
1538	c.b = c.b * shade / 100;	582	c.b = c.b * shade / 100;
1539
1540	low = 0;
1541	}
1542
1543	/* fill our lookup tables */
1544	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1545	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1546	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1547
1548	/* apply table to input image (replacing colors by newly calculated ones) */
1549	if (ximage->bits_per_pixel == 32
1550	&& (ximage->depth == 24 || ximage->depth == 32)
1551	&& ximage->byte_order == host_byte_order)
1552	{	583	}
1553	uint32_t *p1, *pf, *p, *pl;
1554	p1 = (uint32_t *) ximage->data;
1555	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1556		584
1557	while (p1 < pf)	585	img->contrast (c.r, c.g, c.b, c.a);
1558	{	586
1559	p = p1;	587	if (shade > 100)
1560	pl = p1 + ximage->width;
1561	for (; p < pl; p++)
1562	{
1563	*p = lookup_r[(*p & 0xff0000) >> 16] |
1564	lookup_g[(*p & 0x00ff00) >> 8] |
1565	lookup_b[(*p & 0x0000ff)] |
1566	(*p & 0xff000000);
1567	}
1568	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1569	}
1570	}	588	{
1571	else	589	c.a = 0xffff;
		590	c.r =
		591	c.g =
		592	c.b = 0xffff * (shade - 100) / 100;
		593	img->brightness (c.r, c.g, c.b, c.a);
1572	{	594	}
1573	for (int y = 0; y < ximage->height; y++)
1574	for (int x = 0; x < ximage->width; x++)
1575	{
1576	unsigned long pixel = XGetPixel (ximage, x, y);
1577	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1578	lookup_g[(pixel & mask_g) >> sh_g] |
1579	lookup_b[(pixel & mask_b) >> sh_b];
1580	XPutPixel (ximage, x, y, pixel);
1581	}
1582	}
1583
1584	free (lookup);
1585	}	595	}
1586	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	596
		597	#endif /* HAVE_BG_PIXMAP */

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