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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.182 by sf-exg, Sun Dec 25 17:01:21 2011 UTC vs.
Revision 1.238 by sf-exg, Sun Jun 10 15:48:08 2012 UTC

…		…
3	*----------------------------------------------------------------------*	3	*----------------------------------------------------------------------*
4	*	4	*
5	* All portions of code are copyright by their respective author/s.	5	* All portions of code are copyright by their respective author/s.
6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>	6	* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>	7	* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8	* Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>	8	* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9	*	9	*
10	* This program is free software; you can redistribute it and/or modify	10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by	11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or	12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.	13	* (at your option) any later version.
…		…
20	* You should have received a copy of the GNU General Public License	20	* You should have received a copy of the GNU General Public License
21	* along with this program; if not, write to the Free Software	21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*---------------------------------------------------------------------*/	23	*---------------------------------------------------------------------*/
24		24
25	#include <cmath>
26	#include "../config.h" /* NECESSARY */	25	#include "../config.h" /* NECESSARY */
27	#include "rxvt.h" /* NECESSARY */	26	#include "rxvt.h" /* NECESSARY */
28		27
29	#if XRENDER
30	# include <X11/extensions/Xrender.h>
31	#endif
32
33	#ifndef FilterConvolution
34	#define FilterConvolution "convolution"
35	#endif
36
37	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
38	void	30	void
39	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
40	{	32	{
41	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
42	if (original_asim)	34	delete root_img;
43	safe_asimage_destroy (original_asim);	35	root_img = 0;
44	if (asv)
45	destroy_asvisual (asv, 0);
46	if (asimman)
47	destroy_image_manager (asimman, 0);
48	#endif	36	# endif
49		37
50	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
51	if (pixbuf)	39	fimage.destroy ();
52	g_object_unref (pixbuf);
53	#endif	40	# endif
54		41
55	if (bg_pixmap)	42	delete bg_img;
56	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
57	}	44	}
58		45
59	bool	46	bool
60	rxvt_term::bg_set_position (int x, int y)	47	rxvt_term::bg_set_position (int x, int y)
61	{	48	{
…		…
71	}	58	}
72		59
73	bool	60	bool
74	rxvt_term::bg_window_size_sensitive ()	61	rxvt_term::bg_window_size_sensitive ()
75	{	62	{
76	# ifdef ENABLE_TRANSPARENCY	63	# if ENABLE_TRANSPARENCY
77	if (bg_flags & BG_IS_TRANSPARENT)	64	if (bg_flags & BG_IS_TRANSPARENT)
78	return true;	65	return true;
79	# endif	66	# endif
80		67
81	# ifdef BG_IMAGE_FROM_FILE	68	# if BG_IMAGE_FROM_FILE
82	if (bg_flags & BG_IS_FROM_FILE)	69	if (fimage.img)
83	{	70	{
84	if (bg_flags & BG_IS_SIZE_SENSITIVE)	71	if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
		72	|| fimage.img->w > szHint.width
		73	|| fimage.img->h > szHint.height)
85	return true;	74	return true;
86	}	75	}
87	# endif	76	# endif
88		77
89	return false;	78	return false;
90	}	79	}
91		80
92	bool	81	bool
93	rxvt_term::bg_window_position_sensitive ()	82	rxvt_term::bg_window_position_sensitive ()
94	{	83	{
95	# ifdef ENABLE_TRANSPARENCY	84	# if ENABLE_TRANSPARENCY
96	if (bg_flags & BG_IS_TRANSPARENT)	85	if (bg_flags & BG_IS_TRANSPARENT)
97	return true;	86	return true;
98	# endif	87	# endif
99		88
100	# ifdef BG_IMAGE_FROM_FILE	89	# if BG_IMAGE_FROM_FILE
101	if (bg_flags & BG_IS_FROM_FILE)	90	if (fimage.img)
102	{	91	{
103	if (bg_flags & BG_ROOT_ALIGN)	92	if (fimage.flags & IM_ROOT_ALIGN)
104	return true;	93	return true;
105	}	94	}
106	# endif	95	# endif
107		96
108	return false;	97	return false;
109	}	98	}
110		99
111	# ifdef BG_IMAGE_FROM_FILE	100	# if BG_IMAGE_FROM_FILE
112	static inline bool
113	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
114	{
115	if (geom_flags & flag)
116	{
117	if (new_value > 1000)
118	new_value = 1000;
119	if (new_value != scale)
120	{
121	scale = new_value;
122	return true;
123	}
124	}
125	return false;
126	}
127
128	static inline bool
129	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
130	{
131	if (geom_flags & flag)
132	{
133	if (new_value < -100)
134	new_value = -100;
135	else if (new_value > 200)
136	new_value = 200;
137	if (new_value != align)
138	{
139	align = new_value;
140	return true;
141	}
142	}
143	return false;
144	}
145
146	static inline int	101	static inline int
147	make_align_position (int align, int window_size, int image_size)	102	make_align_position (int align, int window_size, int image_size)
148	{	103	{
149	int diff = window_size - image_size;
150	int smaller = min (image_size, window_size);
151
152	if (align >= 0 && align <= 100)	104	if (align >= 0 && align <= 100)
153	return diff * align / 100;	105	return lerp (0, window_size - image_size, align);
154	else if (align > 100 && align <= 200)	106	else if (align > 100)
155	return (align - 100) * smaller / 100 + window_size - smaller;	107	return lerp (window_size - image_size, window_size, align - 100);
156	else if (align >= -100 && align < 0)	108	else
157	return (align + 100) * smaller / 100 - image_size;	109	return lerp (-image_size, 0, align + 100);
158	return 0;
159	}	110	}
160		111
161	static inline int	112	static void
162	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	113	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
163	{	114	{
164	int src_pos = 0;	115	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	}	116	{
173		117	flags = IM_TILE;
174	if (dst_pos + dst_size > target_size)	118	w = h = noScale;
175	dst_size = target_size - dst_pos;	119	x = y = 0;
176	return src_pos;	120	}
		121	else if (!strcasecmp (style, "aspect-stretched"))
		122	{
		123	flags = IM_KEEP_ASPECT;
		124	w = h = windowScale;
		125	x = y = centerAlign;
		126	}
		127	else if (!strcasecmp (style, "stretched"))
		128	{
		129	flags = 0;
		130	w = h = windowScale;
		131	x = y = centerAlign;
		132	}
		133	else if (!strcasecmp (style, "centered"))
		134	{
		135	flags = 0;
		136	w = h = noScale;
		137	x = y = centerAlign;
		138	}
		139	else if (!strcasecmp (style, "root-tiled"))
		140	{
		141	flags = IM_TILE|IM_ROOT_ALIGN;
		142	w = h = noScale;
		143	x = y = 0;
		144	}
177	}	145	}
178		146
179	bool	147	bool
180	rxvt_term::bg_set_geometry (const char *geom, bool update)	148	rxvt_image::set_geometry (const char *geom, bool update)
181	{	149	{
182	bool changed = false;	150	bool changed = false;
183	int geom_flags = 0;	151	int geom_flags = 0;
184	int x = 0, y = 0;	152	int x = h_align;
		153	int y = v_align;
185	unsigned int w = 0, h = 0;	154	unsigned int w = h_scale;
186	unsigned long new_flags = bg_flags & ~BG_GEOMETRY_FLAGS;	155	unsigned int h = v_scale;
		156	uint8_t new_flags = 0;
187		157
188	if (geom == NULL)	158	if (geom == NULL)
189	return false;	159	return false;
190		160
191	if (geom[0])	161	if (geom[0])
192	{	162	{
193	char **arr = rxvt_strsplit (':', geom);	163	char **arr = rxvt_strsplit (':', geom);
194		164
195	for (int i = 0; arr[i]; i++)	165	for (int i = 0; arr[i]; i++)
196	{	166	{
197	if (!strcasecmp (arr[i], "style=tiled"))	167	if (!strncasecmp (arr[i], "style=", 6))
198	{	168	{
199	new_flags = BG_TILE;	169	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;	170	geom_flags = WidthValue|HeightValue|XValue|YValue;
203	}	171	}
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"))	172	else if (!strcasecmp (arr[i], "op=tile"))
231	new_flags |= BG_TILE;	173	new_flags |= IM_TILE;
232	else if (!strcasecmp (arr[i], "op=keep-aspect"))	174	else if (!strcasecmp (arr[i], "op=keep-aspect"))
233	new_flags |= BG_KEEP_ASPECT;	175	new_flags |= IM_KEEP_ASPECT;
234	else if (!strcasecmp (arr[i], "op=root-align"))	176	else if (!strcasecmp (arr[i], "op=root-align"))
235	new_flags |= BG_ROOT_ALIGN;	177	new_flags |= IM_ROOT_ALIGN;
236		178
237	// deprecated	179	// deprecated
238	else if (!strcasecmp (arr[i], "tile"))	180	else if (!strcasecmp (arr[i], "tile"))
239	{	181	{
240	new_flags |= BG_TILE;	182	new_flags |= IM_TILE;
241	w = h = noScale;	183	w = h = noScale;
242	geom_flags |= WidthValue|HeightValue;	184	geom_flags |= WidthValue|HeightValue;
243	}	185	}
244	else if (!strcasecmp (arr[i], "propscale"))	186	else if (!strcasecmp (arr[i], "propscale"))
245	{	187	{
246	new_flags |= BG_KEEP_ASPECT;	188	new_flags |= IM_KEEP_ASPECT;
247	w = h = windowScale;	189	w = h = windowScale;
248	geom_flags |= WidthValue|HeightValue;	190	geom_flags |= WidthValue|HeightValue;
249	}	191	}
250	else if (!strcasecmp (arr[i], "hscale"))	192	else if (!strcasecmp (arr[i], "hscale"))
251	{	193	{
252	new_flags |= BG_TILE;	194	new_flags |= IM_TILE;
253	w = windowScale;	195	w = windowScale;
254	h = noScale;	196	h = noScale;
255	geom_flags |= WidthValue|HeightValue;	197	geom_flags |= WidthValue|HeightValue;
256	}	198	}
257	else if (!strcasecmp (arr[i], "vscale"))	199	else if (!strcasecmp (arr[i], "vscale"))
258	{	200	{
259	new_flags |= BG_TILE;	201	new_flags |= IM_TILE;
260	h = windowScale;	202	h = windowScale;
261	w = noScale;	203	w = noScale;
262	geom_flags |= WidthValue|HeightValue;	204	geom_flags |= WidthValue|HeightValue;
263	}	205	}
264	else if (!strcasecmp (arr[i], "scale"))	206	else if (!strcasecmp (arr[i], "scale"))
…		…
272	x = y = centerAlign;	214	x = y = centerAlign;
273	geom_flags |= WidthValue|HeightValue|XValue|YValue;	215	geom_flags |= WidthValue|HeightValue|XValue|YValue;
274	}	216	}
275	else if (!strcasecmp (arr[i], "root"))	217	else if (!strcasecmp (arr[i], "root"))
276	{	218	{
277	new_flags |= BG_TILE|BG_ROOT_ALIGN;	219	new_flags |= IM_TILE|IM_ROOT_ALIGN;
278	w = h = noScale;	220	w = h = noScale;
279	geom_flags |= WidthValue|HeightValue;	221	geom_flags |= WidthValue|HeightValue;
280	}	222	}
281		223
282	else	224	else
283	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);	225	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
284	} /* done parsing ops */	226	} /* done parsing ops */
285		227
286	rxvt_free_strsplit (arr);	228	rxvt_free_strsplit (arr);
287	}	229	}
		230
		231	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
288		232
289	if (!update)	233	if (!update)
290	{	234	{
291	if (!(geom_flags & XValue))	235	if (!(geom_flags & XValue))
292	x = y = defaultAlign;	236	x = y = defaultAlign;
…		…
297	w = h = defaultScale;	241	w = h = defaultScale;
298	else if (!(geom_flags & HeightValue))	242	else if (!(geom_flags & HeightValue))
299	h = w;	243	h = w;
300	else if (!(geom_flags & WidthValue))	244	else if (!(geom_flags & WidthValue))
301	w = h;	245	w = h;
302
303	geom_flags |= WidthValue|HeightValue|XValue|YValue;
304	}
305
306	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
307	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
308	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
309	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
310
311	if (new_flags != bg_flags)
312	{	246	}
		247
		248	clamp_it (x, -100, 200);
		249	clamp_it (y, -100, 200);
		250
		251	if (flags != new_flags
		252	|| h_scale != w
		253	|| v_scale != h
		254	|| h_align != x
		255	|| v_align != y)
		256	{
313	bg_flags = new_flags;	257	flags = new_flags;
		258	h_scale = w;
		259	v_scale = h;
		260	h_align = x;
		261	v_align = y;
314	changed = true;	262	changed = true;
315	}	263	}
316		264
		265	if (is_size_sensitive ())
		266	flags |= IM_IS_SIZE_SENSITIVE;
		267	else
		268	flags &= ~IM_IS_SIZE_SENSITIVE;
		269
317	return changed;	270	return changed;
318	}	271	}
319		272
320	void	273	void
321	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	274	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
322	{	275	{
		276	int image_width = image.img->w;
		277	int image_height = image.img->h;
323	int target_width = szHint.width;	278	int target_width = szHint.width;
324	int target_height = szHint.height;	279	int target_height = szHint.height;
		280	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		281	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
325		282
326	w = h_scale * target_width / 100;	283	w = h_scale * target_width / 100;
327	h = v_scale * target_height / 100;	284	h = v_scale * target_height / 100;
328		285
329	if (bg_flags & BG_KEEP_ASPECT)	286	if (image.flags & IM_KEEP_ASPECT)
330	{	287	{
331	float scale = (float)w / image_width;	288	float scale = (float)w / image_width;
332	min_it (scale, (float)h / image_height);	289	min_it (scale, (float)h / image_height);
333	w = image_width * scale + 0.5;	290	w = image_width * scale + 0.5;
334	h = image_height * scale + 0.5;	291	h = image_height * scale + 0.5;
335	}	292	}
336		293
337	if (!w) w = image_width;	294	if (!w) w = image_width;
338	if (!h) h = image_height;	295	if (!h) h = image_height;
339		296
340	if (bg_flags & BG_ROOT_ALIGN)	297	if (image.flags & IM_ROOT_ALIGN)
341	{	298	{
342	x = -target_x;	299	x = -target_x;
343	y = -target_y;	300	y = -target_y;
344	}	301	}
345	else	302	else
346	{	303	{
347	x = make_align_position (h_align, target_width, w);	304	x = make_align_position (image.h_align, target_width, w);
348	y = make_align_position (v_align, target_height, h);	305	y = make_align_position (image.v_align, target_height, h);
349	}
350
351	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
352	if (!(bg_flags & BG_TILE)
353	|| h_scale || v_scale
354	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
355	|| w > target_width || h > target_height)
356	bg_flags |= BG_IS_SIZE_SENSITIVE;
357	}
358
359	# ifdef HAVE_AFTERIMAGE
360	bool
361	rxvt_term::render_image (unsigned long tr_flags)
362	{
363	init_asv ();
364
365	ASImage *background = NULL;
366	ARGB32 background_tint = TINT_LEAVE_SAME;
367
368	# ifdef ENABLE_TRANSPARENCY
369	if (tr_flags)
370	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
371
372	if (tr_flags & BG_NEEDS_TINT)
373	{	306	}
374	ShadingInfo as_shade;	307	}
375	as_shade.shading = shade;
376		308
377	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	309	bool
378	if (bg_flags & BG_TINT_SET)	310	rxvt_term::render_image (rxvt_image &image)
379	tint.get (c);	311	{
380	as_shade.tintColor.red = c.r;
381	as_shade.tintColor.green = c.g;
382	as_shade.tintColor.blue = c.b;
383
384	background_tint = shading2tint32 (&as_shade);
385	}
386
387	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
388	{
389	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
390	ASA_XImage,
391	100, ASIMAGE_QUALITY_DEFAULT);
392	if (tmp)
393	{
394	destroy_asimage (&background);
395	background = tmp;
396	}
397	}
398	# endif
399
400	ASImage *result = 0;
401
402	int target_width = szHint.width;	312	int target_width = szHint.width;
403	int target_height = szHint.height;	313	int target_height = szHint.height;
404	int new_pmap_width = target_width;
405	int new_pmap_height = target_height;
406		314
407	int x = 0;	315	int x = 0;
408	int y = 0;	316	int y = 0;
409	int w = 0;	317	int w = 0;
410	int h = 0;	318	int h = 0;
411		319
412	if (original_asim)	320	get_image_geometry (image, w, h, x, y);
413	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
414		321
415	if (!original_asim
416	|| (!(bg_flags & BG_ROOT_ALIGN)
417	&& (x >= target_width
418	|| y >= target_height
419	|| x + w <= 0
420	|| y + h <= 0)))
421	{
422	if (background)
423	{
424	new_pmap_width = background->width;
425	new_pmap_height = background->height;
426	result = background;
427
428	if (background_tint != TINT_LEAVE_SAME)
429	{
430	ASImage *tmp = tile_asimage (asv, background, 0, 0,
431	target_width, target_height, background_tint,
432	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
433	if (tmp)
434	result = tmp;
435	}
436	}
437	else
438	new_pmap_width = new_pmap_height = 0;
439	}
440	else
441	{
442	result = original_asim;
443
444	if (w != original_asim->width
445	|| h != original_asim->height)
446	{
447	result = scale_asimage (asv, original_asim,
448	w, h,
449	ASA_XImage,
450	100, ASIMAGE_QUALITY_DEFAULT);
451	}
452
453	if (background == NULL)
454	{
455	if (bg_flags & BG_TILE)
456	{
457	/* if tiling - pixmap has to be sized exactly as the image,
458	but there is no need to make it bigger than the window! */
459	new_pmap_width = min (result->width, target_width);
460	new_pmap_height = min (result->height, target_height);
461
462	/* we also need to tile our image in both directions */
463	ASImage *tmp = tile_asimage (asv, result,
464	(int)result->width - x,
465	(int)result->height - y,
466	new_pmap_width,
467	new_pmap_height,
468	TINT_LEAVE_SAME, ASA_XImage,
469	100, ASIMAGE_QUALITY_DEFAULT);
470	if (tmp)
471	{
472	if (result != original_asim)
473	destroy_asimage (&result);
474
475	result = tmp;
476	}
477	}
478	}
479	else
480	{
481	/* if blending background and image - pixmap has to be sized same as target window */
482	ASImageLayer *layers = create_image_layers (2);
483
484	layers[0].im = background;
485	layers[0].clip_width = target_width;
486	layers[0].clip_height = target_height;
487	layers[0].tint = background_tint;
488	layers[1].im = result;
489
490	if (bg_flags & BG_TILE)
491	{
492	/* tile horizontally */
493	while (x > 0) x -= (int)result->width;
494	layers[1].dst_x = x;
495	layers[1].clip_width = result->width+target_width;
496	}
497	else
498	{
499	/* clip horizontally */
500	layers[1].dst_x = x;
501	layers[1].clip_width = result->width;
502	}
503
504	if (bg_flags & BG_TILE)
505	{
506	while (y > 0) y -= (int)result->height;
507	layers[1].dst_y = y;
508	layers[1].clip_height = result->height + target_height;
509	}
510	else
511	{
512	layers[1].dst_y = y;
513	layers[1].clip_height = result->height;
514	}
515
516	if (rs[Rs_blendtype])
517	{
518	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
519	if (layers[1].merge_scanlines == NULL)
520	layers[1].merge_scanlines = alphablend_scanlines;
521	}
522
523	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
524	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
525
526	if (tmp)
527	{
528	if (result != original_asim)
529	destroy_asimage (&result);
530
531	result = tmp;
532	}
533
534	free (layers);
535	}
536	}
537
538	bool ret = false;
539
540	if (result)
541	{
542	XGCValues gcv;
543	GC gc;
544
545	/* create Pixmap */
546	if (bg_pixmap == None
547	|| bg_pmap_width != new_pmap_width
548	|| bg_pmap_height != new_pmap_height)
549	{
550	if (bg_pixmap)
551	XFreePixmap (dpy, bg_pixmap);
552	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
553	bg_pmap_width = new_pmap_width;
554	bg_pmap_height = new_pmap_height;
555	}
556	/* fill with background color (if result's not completely overlapping it) */
557	gcv.foreground = pix_colors[Color_bg];
558	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
559
560	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
561	int dst_width = result->width, dst_height = result->height;
562	if (background == NULL)
563	{
564	if (!(bg_flags & BG_TILE))
565	{
566	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
567	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
568	}
569
570	if (dst_x > 0 || dst_y > 0
571	|| dst_x + dst_width < new_pmap_width
572	|| dst_y + dst_height < new_pmap_height)
573	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
574	}
575
576	/* put result on pixmap */
577	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
578	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
579
580	if (result != background && result != original_asim)
581	destroy_asimage (&result);
582
583	XFreeGC (dpy, gc);
584
585	ret = true;
586	}
587
588	if (background)
589	destroy_asimage (&background);
590
591	return ret;
592	}
593	# endif /* HAVE_AFTERIMAGE */
594
595	# ifdef HAVE_PIXBUF
596	bool
597	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
598	int src_x, int src_y, int dst_x, int dst_y,
599	unsigned int width, unsigned int height)
600	{
601	XImage *ximage;
602	char *data, *line;
603	int bytes_per_pixel;
604	int width_r, width_g, width_b;
605	int sh_r, sh_g, sh_b;
606	int rowstride;
607	int channels;
608	unsigned char *row;
609
610	if (visual->c_class != TrueColor)
611	return false;
612
613	if (depth == 24 || depth == 32)
614	bytes_per_pixel = 4;
615	else if (depth == 15 || depth == 16)
616	bytes_per_pixel = 2;
617	else
618	return false;
619
620	width_r = ecb_popcount32 (visual->red_mask);
621	width_g = ecb_popcount32 (visual->green_mask);
622	width_b = ecb_popcount32 (visual->blue_mask);
623
624	if (width_r > 8 || width_g > 8 || width_b > 8)
625	return false;
626
627	sh_r = ecb_ctz32 (visual->red_mask);
628	sh_g = ecb_ctz32 (visual->green_mask);
629	sh_b = ecb_ctz32 (visual->blue_mask);
630
631	if (width > INT_MAX / height / bytes_per_pixel)
632	return false;
633
634	data = (char *)malloc (width * height * bytes_per_pixel);
635	if (!data)
636	return false;
637
638	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
639	width, height, bytes_per_pixel * 8, 0);
640	if (!ximage)
641	{
642	free (data);
643	return false;
644	}
645
646	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
647
648	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
649	channels = gdk_pixbuf_get_n_channels (pixbuf);
650	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
651	line = data;
652
653	for (int y = 0; y < height; y++)
654	{
655	for (int x = 0; x < width; x++)
656	{
657	unsigned char *pixel = row + x * channels;
658	uint32_t value;
659
660	value = ((pixel[0] >> (8 - width_r)) << sh_r)
661	| ((pixel[1] >> (8 - width_g)) << sh_g)
662	| ((pixel[2] >> (8 - width_b)) << sh_b);
663
664	if (bytes_per_pixel == 4)
665	((uint32_t *)line)[x] = value;
666	else
667	((uint16_t *)line)[x] = value;
668	}
669
670	row += rowstride;
671	line += ximage->bytes_per_line;
672	}
673
674	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
675	XDestroyImage (ximage);
676	return true;
677	}
678
679	bool
680	rxvt_term::render_image (unsigned long tr_flags)
681	{
682	if (!pixbuf)
683	return false;
684
685	if (tr_flags
686	&& !(bg_flags & BG_HAS_RENDER))
687	return false;
688
689	GdkPixbuf *result;
690
691	int image_width = gdk_pixbuf_get_width (pixbuf);
692	int image_height = gdk_pixbuf_get_height (pixbuf);
693
694	int target_width = szHint.width;
695	int target_height = szHint.height;
696	int new_pmap_width = target_width;
697	int new_pmap_height = target_height;
698
699	int x = 0;
700	int y = 0;
701	int w = 0;
702	int h = 0;
703
704	get_image_geometry (image_width, image_height, w, h, x, y);
705
706	if (!(bg_flags & BG_ROOT_ALIGN)	322	if (!(image.flags & IM_ROOT_ALIGN)
707	&& (x >= target_width	323	&& (x >= target_width
708	|| y >= target_height	324	|| y >= target_height
709	|| x + w <= 0	325	|| x + w <= 0
710	|| y + h <= 0))	326	|| y + h <= 0))
711	return false;	327	return false;
712		328
713	result = pixbuf;	329	rxvt_img *img = image.img->scale (w, h);
714		330
715	if (w != image_width	331	if (image.flags & IM_TILE)
716	|| h != image_height)	332	img->repeat_mode (RepeatNormal);
717	{
718	result = gdk_pixbuf_scale_simple (pixbuf,
719	w, h,
720	GDK_INTERP_BILINEAR);
721	}
722
723	if (!result)
724	return false;
725
726	bool ret = false;
727
728	XGCValues gcv;
729	GC gc;
730	Pixmap root_pmap;
731
732	image_width = gdk_pixbuf_get_width (result);
733	image_height = gdk_pixbuf_get_height (result);
734
735	if (tr_flags)
736	{
737	root_pmap = bg_pixmap;
738	bg_pixmap = None;
739	}
740	else	333	else
741	{	334	img->repeat_mode (RepeatNone);
		335	img->sub_rect (-x, -y, target_width, target_height)->replace (img);
		336
742	if (bg_flags & BG_TILE)	337	if (bg_flags & BG_IS_VALID)
743	{
744	new_pmap_width = min (image_width, target_width);
745	new_pmap_height = min (image_height, target_height);
746	}
747	}	338	{
748		339	double factor = image.alpha * 1. / 0xffff;
749	if (bg_pixmap == None	340	bg_img->blend (img, factor)->replace (img);
750	|| bg_pmap_width != new_pmap_width
751	|| bg_pmap_height != new_pmap_height)
752	{	341	}
753	if (bg_pixmap)
754	XFreePixmap (dpy, bg_pixmap);
755	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
756	bg_pmap_width = new_pmap_width;
757	bg_pmap_height = new_pmap_height;
758	}
759		342
760	gcv.foreground = pix_colors[Color_bg];
761	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
762
763	if (gc)
764	{
765	if (bg_flags & BG_TILE)
766	{
767	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
768	pixbuf_to_pixmap (result, tile, gc,
769	0, 0,
770	0, 0,
771	image_width, image_height);
772
773	gcv.tile = tile;
774	gcv.fill_style = FillTiled;
775	gcv.ts_x_origin = x;
776	gcv.ts_y_origin = y;
777	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
778
779	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
780	XFreePixmap (dpy, tile);
781	}
782	else
783	{
784	int src_x, src_y, dst_x, dst_y;
785	int dst_width, dst_height;
786
787	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
788	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
789
790	if (dst_x > 0 || dst_y > 0
791	|| dst_x + dst_width < new_pmap_width
792	|| dst_y + dst_height < new_pmap_height)
793	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
794
795	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
796	pixbuf_to_pixmap (result, bg_pixmap, gc,
797	src_x, src_y,
798	dst_x, dst_y,
799	dst_width, dst_height);
800	}
801
802	#if XRENDER
803	if (tr_flags)
804	{
805	XRenderPictureAttributes pa;
806
807	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	343	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
808	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	344	img->convert_format (format, pix_colors [Color_bg])->replace (img);
809		345
810	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	346	delete bg_img;
811	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	347	bg_img = img;
812		348
813	pa.repeat = True;
814	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
815	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
816	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
817	XFreePixmap (dpy, mask_pmap);
818
819	XRenderColor mask_c;
820
821	mask_c.alpha = 0x8000;
822	mask_c.red = 0;
823	mask_c.green = 0;
824	mask_c.blue = 0;
825	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
826	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
827
828	XRenderFreePicture (dpy, src);
829	XRenderFreePicture (dpy, dst);
830	XRenderFreePicture (dpy, mask);
831	}
832	#endif
833
834	XFreeGC (dpy, gc);
835
836	ret = true;
837	}
838
839	if (result != pixbuf)
840	g_object_unref (result);
841
842	if (tr_flags)
843	XFreePixmap (dpy, root_pmap);
844
845	return ret;	349	return true;
846	}	350	}
847	# endif /* HAVE_PIXBUF */
848		351
		352	rxvt_image::rxvt_image ()
		353	{
		354	alpha = 0xffff;
		355	flags = 0;
		356	h_scale =
		357	v_scale = defaultScale;
		358	h_align =
		359	v_align = defaultAlign;
		360
		361	img = 0;
		362	}
		363
849	bool	364	bool
850	rxvt_term::bg_set_file (const char *file)	365	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
851	{	366	{
852	if (!file || !*file)	367	if (!file || !*file)
853	return false;	368	return false;
854		369
855	bool ret = false;
856	const char *p = strchr (file, ';');	370	const char *p = strchr (file, ';');
857		371
858	if (p)	372	if (p)
859	{	373	{
860	size_t len = p - file;	374	size_t len = p - file;
…		…
862	memcpy (f, file, len);	376	memcpy (f, file, len);
863	f[len] = '\0';	377	f[len] = '\0';
864	file = f;	378	file = f;
865	}	379	}
866		380
867	# ifdef HAVE_AFTERIMAGE	381	bool ret = set_file (s, file);
868	if (!asimman)	382	alpha = 0x8000;
869	asimman = create_generic_imageman (rs[Rs_path]);
870	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
871	if (image)
872	{
873	if (original_asim)
874	safe_asimage_destroy (original_asim);
875	original_asim = image;
876	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
877	ret = true;
878	}
879	# endif
880
881	# ifdef HAVE_PIXBUF
882	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
883	if (image)
884	{
885	if (pixbuf)
886	g_object_unref (pixbuf);
887	pixbuf = image;
888	bg_flags |= BG_IS_FROM_FILE;
889	ret = true;
890	}
891	# endif
892
893	if (ret)	383	if (ret)
894	{
895	if (p)
896	bg_set_geometry (p + 1);	384	set_geometry (p ? p + 1 : "");
897	else
898	bg_set_default_geometry ();
899	}
900
901	return ret;	385	return ret;
902	}	386	}
903		387
		388	bool
		389	rxvt_image::set_file (rxvt_screen *s, const char *file)
		390	{
		391	delete img;
		392	img = rxvt_img::new_from_file (s, file);
		393	return img != 0;
		394	}
		395
904	# endif /* BG_IMAGE_FROM_FILE */	396	# endif /* BG_IMAGE_FROM_FILE */
905		397
906	# ifdef ENABLE_TRANSPARENCY
907	bool	398	bool
908	rxvt_term::bg_set_transparent ()	399	image_effects::set_blur (const char *geom)
909	{
910	if (!(bg_flags & BG_IS_TRANSPARENT))
911	{
912	bg_flags |= BG_IS_TRANSPARENT;
913	return true;
914	}
915
916	return false;
917	}
918
919	bool
920	rxvt_term::bg_set_blur (const char *geom)
921	{	400	{
922	bool changed = false;	401	bool changed = false;
923	unsigned int hr, vr;	402	unsigned int hr, vr;
924	int junk;	403	int junk;
925	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	404	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
942	{	421	{
943	changed = true;	422	changed = true;
944	v_blurRadius = vr;	423	v_blurRadius = vr;
945	}	424	}
946		425
947	if (v_blurRadius == 0 && h_blurRadius == 0)
948	bg_flags &= ~BG_NEEDS_BLUR;
949	else
950	bg_flags |= BG_NEEDS_BLUR;
951
952	return changed;	426	return changed;
953	}	427	}
954		428
955	void
956	rxvt_term::set_tint_shade_flags ()
957	{
958	rgba c;
959	bool has_shade = shade != 100;
960
961	bg_flags &= ~BG_TINT_FLAGS;
962
963	if (bg_flags & BG_TINT_SET)
964	{
965	tint.get (c);
966	if (!has_shade
967	&& (c.r <= 0x00ff || c.r >= 0xff00)
968	&& (c.g <= 0x00ff || c.g >= 0xff00)
969	&& (c.b <= 0x00ff || c.b >= 0xff00))
970	bg_flags |= BG_TINT_BITAND;
971	}
972
973	if (has_shade || (bg_flags & BG_TINT_SET))
974	bg_flags |= BG_NEEDS_TINT;
975	}
976
977	bool	429	bool
978	rxvt_term::bg_set_tint (rxvt_color &new_tint)	430	image_effects::set_tint (const rxvt_color &new_tint)
979	{	431	{
980	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	432	if (!tint_set || tint != new_tint)
981	{	433	{
982	tint = new_tint;	434	tint = new_tint;
983	bg_flags |= BG_TINT_SET;	435	tint_set = true;
984	set_tint_shade_flags ();	436
985	return true;	437	return true;
986	}	438	}
987		439
988	return false;	440	return false;
989	}	441	}
990		442
991	bool	443	bool
992	rxvt_term::bg_set_shade (const char *shade_str)	444	image_effects::set_shade (const char *shade_str)
993	{	445	{
994	int new_shade = (shade_str) ? atoi (shade_str) : 100;	446	int new_shade = atoi (shade_str);
995		447
996	clamp_it (new_shade, -100, 200);	448	clamp_it (new_shade, -100, 200);
997	if (new_shade < 0)	449	if (new_shade < 0)
998	new_shade = 200 - (100 + new_shade);	450	new_shade = 200 - (100 + new_shade);
999		451
1000	if (new_shade != shade)	452	if (new_shade != shade)
1001	{	453	{
1002	shade = new_shade;	454	shade = new_shade;
1003	set_tint_shade_flags ();
1004	return true;	455	return true;
1005	}	456	}
1006		457
1007	return false;	458	return false;
1008	}	459	}
1009		460
1010	#if XRENDER	461	# if ENABLE_TRANSPARENCY
1011	static void
1012	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1013	{
1014	double sigma = radius / 2.0;
1015	double scale = sqrt (2.0 * M_PI) * sigma;
1016	double sum = 0.0;
1017
1018	for (int i = 0; i < width; i++)
1019	{
1020	double x = i - width / 2;
1021	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1022	sum += kernel[i];
1023	}
1024
1025	params[0] = XDoubleToFixed (width);
1026	params[1] = XDoubleToFixed (1);
1027
1028	for (int i = 0; i < width; i++)
1029	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1030	}
1031	#endif
1032
1033	bool
1034	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1035	{
1036	bool ret = false;
1037	#if XRENDER
1038	if (!(bg_flags & BG_HAS_RENDER_CONV))
1039	return false;
1040
1041	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1042	double *kernel = (double *)malloc (size * sizeof (double));
1043	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1044
1045	XRenderPictureAttributes pa;
1046	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1047
1048	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1049	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1050
1051	if (kernel && params)
1052	{
1053	if (h_blurRadius)
1054	{
1055	size = h_blurRadius * 2 + 1;
1056	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1057
1058	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1059	XRenderComposite (dpy,
1060	PictOpSrc,
1061	src,
1062	None,
1063	dst,
1064	0, 0,
1065	0, 0,
1066	0, 0,
1067	width, height);
1068	}
1069
1070	if (v_blurRadius)
1071	{
1072	size = v_blurRadius * 2 + 1;
1073	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1074	::swap (params[0], params[1]);
1075
1076	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1077	XRenderComposite (dpy,
1078	PictOpSrc,
1079	src,
1080	None,
1081	dst,
1082	0, 0,
1083	0, 0,
1084	0, 0,
1085	width, height);
1086	}
1087
1088	ret = true;
1089	}
1090
1091	free (kernel);
1092	free (params);
1093	XRenderFreePicture (dpy, src);
1094	XRenderFreePicture (dpy, dst);
1095	#endif
1096	return ret;
1097	}
1098
1099	bool
1100	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1101	{
1102	bool ret = false;
1103
1104	if (bg_flags & BG_TINT_BITAND)
1105	{
1106	XGCValues gcv;
1107	GC gc;
1108
1109	/* In this case we can tint image server-side getting significant
1110	* performance improvements, as we eliminate XImage transfer
1111	*/
1112	gcv.foreground = Pixel (tint);
1113	gcv.function = GXand;
1114	gcv.fill_style = FillSolid;
1115	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1116	if (gc)
1117	{
1118	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1119	ret = true;
1120	XFreeGC (dpy, gc);
1121	}
1122	}
1123	# if XRENDER
1124	else if (bg_flags & BG_HAS_RENDER)
1125	{
1126	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1127
1128	if (bg_flags & BG_TINT_SET)
1129	tint.get (c);
1130
1131	if (shade <= 100)
1132	{
1133	c.r = c.r * shade / 100;
1134	c.g = c.g * shade / 100;
1135	c.b = c.b * shade / 100;
1136	}
1137	else
1138	{
1139	c.r = c.r * (200 - shade) / 100;
1140	c.g = c.g * (200 - shade) / 100;
1141	c.b = c.b * (200 - shade) / 100;
1142	}
1143
1144	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1145	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1146	XRenderPictureAttributes pa;
1147
1148	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1149
1150	pa.repeat = True;
1151
1152	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1153	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1154	XFreePixmap (dpy, overlay_pmap);
1155
1156	pa.component_alpha = True;
1157	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1158	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1159	XFreePixmap (dpy, mask_pmap);
1160
1161	XRenderColor mask_c;
1162
1163	mask_c.alpha = 0xffff;
1164	mask_c.red =
1165	mask_c.green =
1166	mask_c.blue = 0;
1167	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1168
1169	mask_c.alpha = 0;
1170	mask_c.red = 0xffff - c.r;
1171	mask_c.green = 0xffff - c.g;
1172	mask_c.blue = 0xffff - c.b;
1173	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1174	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1175
1176	if (shade > 100)
1177	{
1178	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1179	mask_c.alpha = 0;
1180	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1181
1182	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1183	}
1184
1185	ret = true;
1186
1187	XRenderFreePicture (dpy, mask_pic);
1188	XRenderFreePicture (dpy, overlay_pic);
1189	XRenderFreePicture (dpy, back_pic);
1190	}
1191	# endif
1192
1193	return ret;
1194	}
1195
1196	/*	462	/*
1197	* Builds a pixmap of the same size as the terminal window that contains	463	* 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	464	* the tiled portion of the root pixmap that is supposed to be covered by
1199	* our window.	465	* our window.
1200	*/	466	*/
1201	unsigned long	467	bool
1202	rxvt_term::make_transparency_pixmap ()	468	rxvt_term::render_root_image ()
1203	{	469	{
1204	unsigned long result = 0;
1205
1206	/* root dimensions may change from call to call - but Display structure should	470	/* root dimensions may change from call to call - but Display structure should
1207	* be always up-to-date, so let's use it :	471	* be always up-to-date, so let's use it :
1208	*/	472	*/
1209	int screen = display->screen;	473	int screen = display->screen;
1210	int root_depth = DefaultDepth (dpy, screen);
1211	int root_width = DisplayWidth (dpy, screen);	474	int root_width = DisplayWidth (dpy, screen);
1212	int root_height = DisplayHeight (dpy, screen);	475	int root_height = DisplayHeight (dpy, screen);
1213	unsigned int root_pmap_width, root_pmap_height;
1214	int window_width = szHint.width;	476	int window_width = szHint.width;
1215	int window_height = szHint.height;	477	int window_height = szHint.height;
1216	int sx, sy;	478	int sx, sy;
1217	XGCValues gcv;
1218	GC gc;
1219		479
1220	sx = target_x;	480	sx = target_x;
1221	sy = target_y;	481	sy = target_y;
		482
		483	if (!root_img)
		484	return false;
1222		485
1223	/* check if we are outside of the visible part of the virtual screen : */	486	/* check if we are outside of the visible part of the virtual screen : */
1224	if (sx + window_width <= 0 || sy + window_height <= 0	487	if (sx + window_width <= 0 || sy + window_height <= 0
1225	|| sx >= root_width || sy >= root_height)	488	|| sx >= root_width || sy >= root_height)
1226	return 0;	489	return 0;
1227		490
1228	// validate root pixmap and get its size	491	while (sx < 0) sx += root_img->w;
1229	if (root_pixmap != None)	492	while (sy < 0) sy += root_img->h;
1230	{
1231	Window wdummy;
1232	int idummy;
1233	unsigned int udummy;
1234		493
1235	allowedxerror = -1;	494	rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
1236		495
1237	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	496	if (root_effects.need_blur ())
1238	root_pixmap = None;	497	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1239		498
1240	allowedxerror = 0;	499	if (root_effects.need_tint ())
1241	}	500	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1242		501
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);	502	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1258	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	503	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1259		504
1260	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	505	delete bg_img;
		506	bg_img = img;
1261		507
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;	508	return true;
1319	}	509	}
1320		510
1321	void	511	void
1322	rxvt_term::bg_set_root_pixmap ()	512	rxvt_term::bg_set_root_pixmap ()
1323	{	513	{
1324	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	514	delete root_img;
1325	if (new_root_pixmap == None)	515	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	}	516	}
1330	# endif /* ENABLE_TRANSPARENCY */	517	# endif /* ENABLE_TRANSPARENCY */
1331		518
1332	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	519	void
1333	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1334	# endif
1335
1336	bool
1337	rxvt_term::bg_render ()	520	rxvt_term::bg_render ()
1338	{	521	{
1339	unsigned long tr_flags = 0;	522	if (bg_flags & BG_INHIBIT_RENDER)
		523	return;
1340		524
1341	bg_invalidate ();	525	bg_invalidate ();
1342	# ifdef ENABLE_TRANSPARENCY	526	# if ENABLE_TRANSPARENCY
1343	if (bg_flags & BG_IS_TRANSPARENT)	527	if (bg_flags & BG_IS_TRANSPARENT)
1344	{	528	{
1345	/* we need to re-generate transparency pixmap in that case ! */	529	/* we need to re-generate transparency pixmap in that case ! */
1346	tr_flags = make_transparency_pixmap ();
1347	if (tr_flags == 0)
1348	return false;
1349	bg_flags |= BG_IS_VALID;
1350	}
1351	# endif
1352
1353	# ifdef BG_IMAGE_FROM_FILE
1354	if ((bg_flags & BG_IS_FROM_FILE)
1355	|| (tr_flags & BG_EFFECTS_FLAGS))
1356	{
1357	if (render_image (tr_flags))	530	if (render_root_image ())
1358	bg_flags |= BG_IS_VALID;	531	bg_flags |= BG_IS_VALID;
1359	}	532	}
1360	# endif	533	# endif
1361		534
1362	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	535	# if BG_IMAGE_FROM_FILE
1363	XImage *result = NULL;	536	if (fimage.img)
1364
1365	if (tr_flags & BG_NEEDS_TINT)
1366	{
1367	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1368	}	537	{
1369		538	if (render_image (fimage))
1370	if (result)	539	bg_flags |= BG_IS_VALID;
1371	{
1372	/* our own client-side tinting */
1373	//if (tr_flags & BG_NEEDS_TINT)
1374	if (1)
1375	{
1376	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1377	if (bg_flags & BG_TINT_SET)
1378	tint.get (c);
1379	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1380	}
1381
1382	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1383
1384	if (gc)
1385	{
1386	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1387
1388	XFreeGC (dpy, gc);
1389	}
1390
1391	XDestroyImage (result);
1392	}	540	}
1393	# endif	541	# endif
1394		542
1395	if (!(bg_flags & BG_IS_VALID))	543	if (!(bg_flags & BG_IS_VALID))
1396	{	544	{
1397	if (bg_pixmap != None)	545	delete bg_img;
1398	{	546	bg_img = 0;
1399	XFreePixmap (dpy, bg_pixmap);
1400	bg_pixmap = None;
1401	}
1402	}	547	}
1403		548
1404	scr_recolour (false);	549	scr_recolour (false);
1405	bg_flags |= BG_NEEDS_REFRESH;	550	bg_flags |= BG_NEEDS_REFRESH;
1406		551
1407	bg_valid_since = ev::now ();	552	bg_valid_since = ev::now ();
1408
1409	return true;
1410	}	553	}
1411		554
1412	void	555	void
1413	rxvt_term::bg_init ()	556	rxvt_term::bg_init ()
1414	{	557	{
1415	#ifdef ENABLE_TRANSPARENCY	558	#if BG_IMAGE_FROM_FILE
1416	shade = 100;	559	if (rs[Rs_backgroundPixmap])
		560	{
		561	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
		562	&& !bg_window_position_sensitive ())
		563	update_background ();
		564	}
1417	#endif	565	#endif
		566	}
1418		567
1419	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	568	void
1420	#if XRENDER	569	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1421	int major, minor;	570	{
1422	if (XRenderQueryVersion (dpy, &major, &minor))	571	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1423	bg_flags |= BG_HAS_RENDER;
1424	XFilters *filters = XRenderQueryFilters (dpy, vt);
1425	if (filters)
1426	{
1427	for (int i = 0; i < filters->nfilter; i++)
1428	if (!strcmp (filters->filter[i], FilterConvolution))
1429	bg_flags |= BG_HAS_RENDER_CONV;
1430		572
1431	XFree (filters);	573	if (tint_set)
		574	tint.get (c);
		575
		576	if (shade > 100)
1432	}	577	{
1433	#endif	578	c.r = c.r * (200 - shade) / 100;
		579	c.g = c.g * (200 - shade) / 100;
		580	c.b = c.b * (200 - shade) / 100;
		581	}
		582	else
		583	{
		584	c.r = c.r * shade / 100;
		585	c.g = c.g * shade / 100;
		586	c.b = c.b * shade / 100;
		587	}
		588
		589	img->contrast (c.r, c.g, c.b, c.a);
		590
		591	if (shade > 100)
		592	{
		593	c.a = 0xffff;
		594	c.r =
		595	c.g =
		596	c.b = 0xffff * (shade - 100) / 100;
		597	img->brightness (c.r, c.g, c.b, c.a);
		598	}
1434	}	599	}
1435		600
1436	#endif /* HAVE_BG_PIXMAP */	601	#endif /* HAVE_BG_PIXMAP */
1437
1438	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1439	/* based on code from aterm-0.4.2 */
1440
1441	static inline void
1442	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1443	{
1444	for (int i = 0; i <= mask >> sh; i++)
1445	{
1446	uint32_t tmp;
1447	tmp = i * high;
1448	tmp += (mask >> sh) * low;
1449	lookup[i] = (tmp / 0xffff) << sh;
1450	}
1451	}
1452
1453	static void
1454	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1455	{
1456	int sh_r, sh_g, sh_b;
1457	uint32_t mask_r, mask_g, mask_b;
1458	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1459	unsigned short low;
1460	rgba high;
1461	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1462
1463	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1464
1465	/* for convenience */
1466	mask_r = visual->red_mask;
1467	mask_g = visual->green_mask;
1468	mask_b = visual->blue_mask;
1469
1470	/* boring lookup table pre-initialization */
1471	switch (ximage->depth)
1472	{
1473	case 15:
1474	if ((mask_r != 0x7c00) ||
1475	(mask_g != 0x03e0) ||
1476	(mask_b != 0x001f))
1477	return;
1478	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1479	lookup_r = lookup;
1480	lookup_g = lookup+32;
1481	lookup_b = lookup+32+32;
1482	sh_r = 10;
1483	sh_g = 5;
1484	sh_b = 0;
1485	break;
1486	case 16:
1487	if ((mask_r != 0xf800) ||
1488	(mask_g != 0x07e0) ||
1489	(mask_b != 0x001f))
1490	return;
1491	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1492	lookup_r = lookup;
1493	lookup_g = lookup+32;
1494	lookup_b = lookup+32+64;
1495	sh_r = 11;
1496	sh_g = 5;
1497	sh_b = 0;
1498	break;
1499	case 24:
1500	if ((mask_r != 0xff0000) ||
1501	(mask_g != 0x00ff00) ||
1502	(mask_b != 0x0000ff))
1503	return;
1504	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1505	lookup_r = lookup;
1506	lookup_g = lookup+256;
1507	lookup_b = lookup+256+256;
1508	sh_r = 16;
1509	sh_g = 8;
1510	sh_b = 0;
1511	break;
1512	case 32:
1513	if ((mask_r != 0xff0000) ||
1514	(mask_g != 0x00ff00) ||
1515	(mask_b != 0x0000ff))
1516	return;
1517	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1518	lookup_r = lookup;
1519	lookup_g = lookup+256;
1520	lookup_b = lookup+256+256;
1521	sh_r = 16;
1522	sh_g = 8;
1523	sh_b = 0;
1524	break;
1525	default:
1526	return; /* we do not support this color depth */
1527	}
1528
1529	/* prepare limits for color transformation (each channel is handled separately) */
1530	if (shade > 100)
1531	{
1532	shade = 200 - shade;
1533
1534	high.r = c.r * shade / 100;
1535	high.g = c.g * shade / 100;
1536	high.b = c.b * shade / 100;
1537
1538	low = 0xffff * (100 - shade) / 100;
1539	}
1540	else
1541	{
1542	high.r = c.r * shade / 100;
1543	high.g = c.g * shade / 100;
1544	high.b = c.b * shade / 100;
1545
1546	low = 0;
1547	}
1548
1549	/* fill our lookup tables */
1550	fill_lut (lookup_r, mask_r, sh_r, low, high.r);
1551	fill_lut (lookup_g, mask_g, sh_g, low, high.g);
1552	fill_lut (lookup_b, mask_b, sh_b, low, high.b);
1553
1554	/* apply table to input image (replacing colors by newly calculated ones) */
1555	if (ximage->bits_per_pixel == 32
1556	&& (ximage->depth == 24 || ximage->depth == 32)
1557	&& ximage->byte_order == host_byte_order)
1558	{
1559	uint32_t *p1, *pf, *p, *pl;
1560	p1 = (uint32_t *) ximage->data;
1561	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1562
1563	while (p1 < pf)
1564	{
1565	p = p1;
1566	pl = p1 + ximage->width;
1567	for (; p < pl; p++)
1568	{
1569	*p = lookup_r[(*p & 0xff0000) >> 16] |
1570	lookup_g[(*p & 0x00ff00) >> 8] |
1571	lookup_b[(*p & 0x0000ff)] |
1572	(*p & 0xff000000);
1573	}
1574	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1575	}
1576	}
1577	else
1578	{
1579	for (int y = 0; y < ximage->height; y++)
1580	for (int x = 0; x < ximage->width; x++)
1581	{
1582	unsigned long pixel = XGetPixel (ximage, x, y);
1583	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1584	lookup_g[(pixel & mask_g) >> sh_g] |
1585	lookup_b[(pixel & mask_b) >> sh_b];
1586	XPutPixel (ximage, x, y, pixel);
1587	}
1588	}
1589
1590	free (lookup);
1591	}
1592	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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