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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.163 by sf-exg, Sat Aug 13 09:05:44 2011 UTC vs.
Revision 1.237 by root, Sun Jun 10 15:01:14 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	/*
38	* Pixmap geometry string interpretation :
39	* Each geometry string contains zero or one scale/position
40	* adjustment and may optionally be followed by a colon and one or more
41	* colon-delimited pixmap operations.
42	* The following table shows the valid geometry strings and their
43	* effects on the background image :
44	*
45	* WxH+X+Y Set scaling to W% by H%, and position to X% by Y%.
46	* W and H are percentages of the terminal window size.
47	* X and Y are also percentages; e.g., +50+50 centers
48	* the image in the window.
49	*
50	* Pixmap Operations : (should be prepended by a colon)
51	*/
52
53	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
		29
54	void	30	void
55	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
56	{	32	{
57	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
58	if (original_asim)	34	delete root_img;
59	safe_asimage_destroy (original_asim);	35	root_img = 0;
60	if (asv)
61	destroy_asvisual (asv, 0);
62	if (asimman)
63	destroy_image_manager (asimman, 0);
64	#endif	36	# endif
65		37
66	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
67	if (pixbuf)	39	fimage.destroy ();
68	g_object_unref (pixbuf);
69	#endif	40	# endif
70		41
71	if (bg_pixmap)	42	delete bg_img;
72	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
73	}	44	}
74		45
75	bool	46	bool
76	rxvt_term::bg_set_position (int x, int y)	47	rxvt_term::bg_set_position (int x, int y)
77	{	48	{
…		…
87	}	58	}
88		59
89	bool	60	bool
90	rxvt_term::bg_window_size_sensitive ()	61	rxvt_term::bg_window_size_sensitive ()
91	{	62	{
92	# ifdef ENABLE_TRANSPARENCY	63	# if ENABLE_TRANSPARENCY
93	if (bg_flags & BG_IS_TRANSPARENT)	64	if (bg_flags & BG_IS_TRANSPARENT)
94	return true;	65	return true;
95	# endif	66	# endif
96		67
97	# ifdef BG_IMAGE_FROM_FILE	68	# if BG_IMAGE_FROM_FILE
98	if (bg_flags & BG_IS_FROM_FILE)	69	if (fimage.img)
99	{	70	{
100	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)
101	return true;	74	return true;
102	}	75	}
103	# endif	76	# endif
104		77
105	return false;	78	return false;
106	}	79	}
107		80
108	bool	81	bool
109	rxvt_term::bg_window_position_sensitive ()	82	rxvt_term::bg_window_position_sensitive ()
110	{	83	{
111	# ifdef ENABLE_TRANSPARENCY	84	# if ENABLE_TRANSPARENCY
112	if (bg_flags & BG_IS_TRANSPARENT)	85	if (bg_flags & BG_IS_TRANSPARENT)
113	return true;	86	return true;
114	# endif	87	# endif
115		88
116	# ifdef BG_IMAGE_FROM_FILE	89	# if BG_IMAGE_FROM_FILE
117	if (bg_flags & BG_IS_FROM_FILE)	90	if (fimage.img)
118	{	91	{
119	if (bg_flags & BG_ROOT_ALIGN)	92	if (fimage.flags & IM_ROOT_ALIGN)
120	return true;	93	return true;
121	}	94	}
122	# endif	95	# endif
123		96
124	return false;	97	return false;
125	}	98	}
126		99
127	# ifdef BG_IMAGE_FROM_FILE	100	# if BG_IMAGE_FROM_FILE
128	static inline bool
129	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
130	{
131	if (geom_flags & flag)
132	{
133	if (new_value > 1000)
134	new_value = 1000;
135	if (new_value != scale)
136	{
137	scale = new_value;
138	return true;
139	}
140	}
141	return false;
142	}
143
144	static inline bool
145	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
146	{
147	if (geom_flags & flag)
148	{
149	if (new_value < -100)
150	new_value = -100;
151	else if (new_value > 200)
152	new_value = 200;
153	if (new_value != align)
154	{
155	align = new_value;
156	return true;
157	}
158	}
159	return false;
160	}
161
162	static inline int	101	static inline int
163	make_align_position (int align, int window_size, int image_size)	102	make_align_position (int align, int window_size, int image_size)
164	{	103	{
165	int diff = window_size - image_size;
166	int smaller = min (image_size, window_size);
167
168	if (align >= 0 && align <= 100)	104	if (align >= 0 && align <= 100)
169	return diff * align / 100;	105	return lerp (0, window_size - image_size, align);
170	else if (align > 100 && align <= 200)	106	else if (align > 100)
171	return ((align - 100) * smaller / 100) + window_size - smaller;	107	return lerp (window_size - image_size, window_size, align - 100);
172	else if (align >= -100 && align < 0)	108	else
173	return ((align + 100) * smaller / 100) - image_size;	109	return lerp (-image_size, 0, align + 100);
174	return 0;
175	}	110	}
176		111
177	static inline int	112	static inline int
178	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)	113	make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
179	{	114	{
…		…
185	src_pos = -pos;	120	src_pos = -pos;
186	dst_pos = 0;	121	dst_pos = 0;
187	dst_size += pos;	122	dst_size += pos;
188	}	123	}
189		124
190	if (dst_pos + dst_size > target_size)
191	dst_size = target_size - dst_pos;	125	min_it (dst_size, target_size - dst_pos);
192	return src_pos;	126	return src_pos;
193	}	127	}
194		128
		129	static void
		130	parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
		131	{
		132	if (!strcasecmp (style, "tiled"))
		133	{
		134	flags = IM_TILE;
		135	w = h = noScale;
		136	x = y = 0;
		137	}
		138	else if (!strcasecmp (style, "aspect-stretched"))
		139	{
		140	flags = IM_KEEP_ASPECT;
		141	w = h = windowScale;
		142	x = y = centerAlign;
		143	}
		144	else if (!strcasecmp (style, "stretched"))
		145	{
		146	flags = 0;
		147	w = h = windowScale;
		148	x = y = centerAlign;
		149	}
		150	else if (!strcasecmp (style, "centered"))
		151	{
		152	flags = 0;
		153	w = h = noScale;
		154	x = y = centerAlign;
		155	}
		156	else if (!strcasecmp (style, "root-tiled"))
		157	{
		158	flags = IM_TILE|IM_ROOT_ALIGN;
		159	w = h = noScale;
		160	x = y = 0;
		161	}
		162	}
		163
195	bool	164	bool
196	rxvt_term::bg_set_geometry (const char *geom, bool update)	165	rxvt_image::set_geometry (const char *geom, bool update)
197	{	166	{
198	bool changed = false;	167	bool changed = false;
199	int geom_flags = 0;	168	int geom_flags = 0;
200	int x = 0, y = 0;	169	int x = h_align;
		170	int y = v_align;
201	unsigned int w = 0, h = 0;	171	unsigned int w = h_scale;
202	unsigned long new_flags = (bg_flags & (~BG_GEOMETRY_FLAGS));	172	unsigned int h = v_scale;
		173	uint8_t new_flags = 0;
203		174
204	if (geom == NULL)	175	if (geom == NULL)
205	return false;	176	return false;
206		177
207	if (geom[0])	178	if (geom[0])
208	{	179	{
209	char **arr = rxvt_strsplit (':', geom);	180	char **arr = rxvt_strsplit (':', geom);
210		181
211	for (int i = 0; arr[i]; i++)	182	for (int i = 0; arr[i]; i++)
212	{	183	{
213	if (!strcasecmp (arr[i], "style=tiled"))	184	if (!strncasecmp (arr[i], "style=", 6))
214	{	185	{
215	new_flags = BG_TILE;	186	parse_style (arr[i] + 6, x, y, w, h, new_flags);
216	w = h = noScale;
217	x = y = 0;
218	geom_flags = WidthValue|HeightValue|XValue|YValue;	187	geom_flags = WidthValue|HeightValue|XValue|YValue;
219	}	188	}
220	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
221	{
222	new_flags = BG_PROP_SCALE;
223	x = y = centerAlign;
224	geom_flags = XValue|YValue;
225	}
226	else if (!strcasecmp (arr[i], "style=stretched"))
227	{
228	new_flags = 0;
229	w = h = windowScale;
230	geom_flags = WidthValue|HeightValue;
231	}
232	else if (!strcasecmp (arr[i], "style=centered"))
233	{
234	new_flags = 0;
235	w = h = noScale;
236	x = y = centerAlign;
237	geom_flags = WidthValue|HeightValue|XValue|YValue;
238	}
239	else if (!strcasecmp (arr[i], "style=root-tiled"))
240	{
241	new_flags = BG_TILE|BG_ROOT_ALIGN;
242	w = h = noScale;
243	geom_flags = WidthValue|HeightValue;
244	}
245	else if (!strcasecmp (arr[i], "op=tile"))	189	else if (!strcasecmp (arr[i], "op=tile"))
246	new_flags |= BG_TILE;	190	new_flags |= IM_TILE;
247	else if (!strcasecmp (arr[i], "op=pscale"))	191	else if (!strcasecmp (arr[i], "op=keep-aspect"))
248	new_flags |= BG_PROP_SCALE;	192	new_flags |= IM_KEEP_ASPECT;
249	else if (!strcasecmp (arr[i], "op=root"))	193	else if (!strcasecmp (arr[i], "op=root-align"))
250	new_flags |= BG_ROOT_ALIGN;	194	new_flags |= IM_ROOT_ALIGN;
251		195
252	// deprecated	196	// deprecated
253	else if (!strcasecmp (arr[i], "tile"))	197	else if (!strcasecmp (arr[i], "tile"))
254	{	198	{
255	new_flags |= BG_TILE;	199	new_flags |= IM_TILE;
256	w = h = noScale;	200	w = h = noScale;
257	geom_flags |= WidthValue|HeightValue;	201	geom_flags |= WidthValue|HeightValue;
258	}	202	}
259	else if (!strcasecmp (arr[i], "propscale"))	203	else if (!strcasecmp (arr[i], "propscale"))
260	{	204	{
261	new_flags |= BG_PROP_SCALE;	205	new_flags |= IM_KEEP_ASPECT;
		206	w = h = windowScale;
		207	geom_flags |= WidthValue|HeightValue;
262	}	208	}
263	else if (!strcasecmp (arr[i], "hscale"))	209	else if (!strcasecmp (arr[i], "hscale"))
264	{	210	{
265	new_flags |= BG_TILE;	211	new_flags |= IM_TILE;
266	w = windowScale;	212	w = windowScale;
267	h = noScale;	213	h = noScale;
268	geom_flags |= WidthValue|HeightValue;	214	geom_flags |= WidthValue|HeightValue;
269	}	215	}
270	else if (!strcasecmp (arr[i], "vscale"))	216	else if (!strcasecmp (arr[i], "vscale"))
271	{	217	{
272	new_flags |= BG_TILE;	218	new_flags |= IM_TILE;
273	h = windowScale;	219	h = windowScale;
274	w = noScale;	220	w = noScale;
275	geom_flags |= WidthValue|HeightValue;	221	geom_flags |= WidthValue|HeightValue;
276	}	222	}
277	else if (!strcasecmp (arr[i], "scale"))	223	else if (!strcasecmp (arr[i], "scale"))
…		…
285	x = y = centerAlign;	231	x = y = centerAlign;
286	geom_flags |= WidthValue|HeightValue|XValue|YValue;	232	geom_flags |= WidthValue|HeightValue|XValue|YValue;
287	}	233	}
288	else if (!strcasecmp (arr[i], "root"))	234	else if (!strcasecmp (arr[i], "root"))
289	{	235	{
290	new_flags |= BG_TILE|BG_ROOT_ALIGN;	236	new_flags |= IM_TILE|IM_ROOT_ALIGN;
291	w = h = noScale;	237	w = h = noScale;
292	geom_flags |= WidthValue|HeightValue;	238	geom_flags |= WidthValue|HeightValue;
293	}	239	}
294		240
295	else	241	else
296	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);	242	geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
297	} /* done parsing ops */	243	} /* done parsing ops */
298		244
299	rxvt_free_strsplit (arr);	245	rxvt_free_strsplit (arr);
300	}	246	}
		247
		248	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
301		249
302	if (!update)	250	if (!update)
303	{	251	{
304	if (!(geom_flags & XValue))	252	if (!(geom_flags & XValue))
305	x = y = defaultAlign;	253	x = y = defaultAlign;
…		…
310	w = h = defaultScale;	258	w = h = defaultScale;
311	else if (!(geom_flags & HeightValue))	259	else if (!(geom_flags & HeightValue))
312	h = w;	260	h = w;
313	else if (!(geom_flags & WidthValue))	261	else if (!(geom_flags & WidthValue))
314	w = h;	262	w = h;
315
316	geom_flags |= WidthValue|HeightValue|XValue|YValue;
317	}
318
319	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
320	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
321	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
322	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
323
324	if (new_flags != bg_flags)
325	{	263	}
		264
		265	clamp_it (x, -100, 200);
		266	clamp_it (y, -100, 200);
		267
		268	if (flags != new_flags
		269	|| h_scale != w
		270	|| v_scale != h
		271	|| h_align != x
		272	|| v_align != y)
		273	{
326	bg_flags = new_flags;	274	flags = new_flags;
		275	h_scale = w;
		276	v_scale = h;
		277	h_align = x;
		278	v_align = y;
327	changed = true;	279	changed = true;
328	}	280	}
329		281
		282	if (is_size_sensitive ())
		283	flags |= IM_IS_SIZE_SENSITIVE;
		284	else
		285	flags &= ~IM_IS_SIZE_SENSITIVE;
		286
330	return changed;	287	return changed;
331	}	288	}
332		289
333	void	290	void
334	rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y)	291	rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
335	{	292	{
		293	int image_width = image.img->w;
		294	int image_height = image.img->h;
336	int target_width = szHint.width;	295	int target_width = szHint.width;
337	int target_height = szHint.height;	296	int target_height = szHint.height;
		297	int h_scale = min (image.h_scale, 32767 * 100 / target_width);
		298	int v_scale = min (image.v_scale, 32767 * 100 / target_height);
338		299
339	if (bg_flags & BG_PROP_SCALE)	300	w = h_scale * target_width / 100;
		301	h = v_scale * target_height / 100;
		302
		303	if (image.flags & IM_KEEP_ASPECT)
340	{	304	{
341	float scale = (float)target_width / image_width;	305	float scale = (float)w / image_width;
342	min_it (scale, (float)target_height / image_height);	306	min_it (scale, (float)h / image_height);
343	w = image_width * scale + 0.5;	307	w = image_width * scale + 0.5;
344	h = image_height * scale + 0.5;	308	h = image_height * scale + 0.5;
345	}	309	}
346	else
347	{
348	w = h_scale * target_width / 100;
349	h = v_scale * target_height / 100;
350	}
351		310
352	if (!w) w = image_width;	311	if (!w) w = image_width;
353	if (!h) h = image_height;	312	if (!h) h = image_height;
354		313
355	if (bg_flags & BG_ROOT_ALIGN)	314	if (image.flags & IM_ROOT_ALIGN)
356	{	315	{
357	x = -target_x;	316	x = -target_x;
358	y = -target_y;	317	y = -target_y;
359	}	318	}
360	else	319	else
361	{	320	{
362	x = make_align_position (h_align, target_width, w);	321	x = make_align_position (image.h_align, target_width, w);
363	y = make_align_position (v_align, target_height, h);	322	y = make_align_position (image.v_align, target_height, h);
364	}
365
366	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
367	if (!(bg_flags & BG_TILE)
368	|| (bg_flags & BG_PROP_SCALE) || h_scale || v_scale
369	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
370	|| w > target_width || h > target_height)
371	bg_flags |= BG_IS_SIZE_SENSITIVE;
372	}
373
374	# ifdef HAVE_AFTERIMAGE
375	bool
376	rxvt_term::render_image (unsigned long tr_flags)
377	{
378	init_asv ();
379
380	ASImage *background = NULL;
381	ARGB32 background_tint = TINT_LEAVE_SAME;
382
383	# ifdef ENABLE_TRANSPARENCY
384	if (tr_flags)
385	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
386
387	if (tr_flags & BG_NEEDS_TINT)
388	{	323	}
389	ShadingInfo as_shade;	324	}
390	as_shade.shading = shade;
391		325
392	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	326	bool
393	if (bg_flags & BG_TINT_SET)	327	rxvt_term::render_image (rxvt_image &image)
394	tint.get (c);	328	{
395	as_shade.tintColor.red = c.r;
396	as_shade.tintColor.green = c.g;
397	as_shade.tintColor.blue = c.b;
398
399	background_tint = shading2tint32 (&as_shade);
400	}
401
402	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
403	{
404	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
405	(original_asim == NULL || tint == TINT_LEAVE_SAME) ? ASA_XImage : ASA_ASImage,
406	100, ASIMAGE_QUALITY_DEFAULT);
407	if (tmp)
408	{
409	destroy_asimage (&background);
410	background = tmp;
411	}
412	}
413	# endif
414
415	ASImage *result = 0;
416
417	int target_width = szHint.width;	329	int target_width = szHint.width;
418	int target_height = szHint.height;	330	int target_height = szHint.height;
419	int new_pmap_width = target_width;
420	int new_pmap_height = target_height;
421		331
422	int x = 0;	332	int x = 0;
423	int y = 0;	333	int y = 0;
424	int w = 0;	334	int w = 0;
425	int h = 0;	335	int h = 0;
426		336
427	if (original_asim)	337	get_image_geometry (image, w, h, x, y);
428	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
429		338
430	if (!original_asim
431	|| (!(bg_flags & BG_ROOT_ALIGN)
432	&& (x >= target_width
433	|| y >= target_height
434	|| (x + w <= 0)
435	|| (y + h <= 0))))
436	{
437	if (background)
438	{
439	new_pmap_width = background->width;
440	new_pmap_height = background->height;
441	result = background;
442
443	if (background_tint != TINT_LEAVE_SAME)
444	{
445	ASImage *tmp = tile_asimage (asv, background, 0, 0,
446	target_width, target_height, background_tint,
447	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
448	if (tmp)
449	result = tmp;
450	}
451	}
452	else
453	new_pmap_width = new_pmap_height = 0;
454	}
455	else
456	{
457	result = original_asim;
458
459	if ((w != original_asim->width)
460	|| (h != original_asim->height))
461	{
462	result = scale_asimage (asv, original_asim,
463	w, h,
464	background ? ASA_ASImage : ASA_XImage,
465	100, ASIMAGE_QUALITY_DEFAULT);
466	}
467
468	if (background == NULL)
469	{
470	if (bg_flags & BG_TILE)
471	{
472	/* if tiling - pixmap has to be sized exactly as the image,
473	but there is no need to make it bigger than the window! */
474	new_pmap_width = min (result->width, target_width);
475	new_pmap_height = min (result->height, target_height);
476
477	/* we also need to tile our image in both directions */
478	ASImage *tmp = tile_asimage (asv, result,
479	(int)result->width - x,
480	(int)result->height - y,
481	new_pmap_width,
482	new_pmap_height,
483	TINT_LEAVE_SAME, ASA_XImage,
484	100, ASIMAGE_QUALITY_DEFAULT);
485	if (tmp)
486	{
487	if (result != original_asim)
488	destroy_asimage (&result);
489
490	result = tmp;
491	}
492	}
493	}
494	else
495	{
496	/* if blending background and image - pixmap has to be sized same as target window */
497	ASImageLayer *layers = create_image_layers (2);
498
499	layers[0].im = background;
500	layers[0].clip_width = target_width;
501	layers[0].clip_height = target_height;
502	layers[0].tint = background_tint;
503	layers[1].im = result;
504
505	if (bg_flags & BG_TILE)
506	{
507	/* tile horizontally */
508	while (x > 0) x -= (int)result->width;
509	layers[1].dst_x = x;
510	layers[1].clip_width = result->width+target_width;
511	}
512	else
513	{
514	/* clip horizontally */
515	layers[1].dst_x = x;
516	layers[1].clip_width = result->width;
517	}
518
519	if (bg_flags & BG_TILE)
520	{
521	while (y > 0) y -= (int)result->height;
522	layers[1].dst_y = y;
523	layers[1].clip_height = result->height + target_height;
524	}
525	else
526	{
527	layers[1].dst_y = y;
528	layers[1].clip_height = result->height;
529	}
530
531	if (rs[Rs_blendtype])
532	{
533	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
534	if (layers[1].merge_scanlines == NULL)
535	layers[1].merge_scanlines = alphablend_scanlines;
536	}
537
538	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
539	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
540
541	if (tmp)
542	{
543	if (result != original_asim)
544	destroy_asimage (&result);
545
546	result = tmp;
547	}
548
549	free (layers);
550	}
551	}
552
553	bool ret = false;
554
555	if (result)
556	{
557	XGCValues gcv;
558	GC gc;
559
560	/* create Pixmap */
561	if (bg_pixmap == None
562	|| bg_pmap_width != new_pmap_width
563	|| bg_pmap_height != new_pmap_height)
564	{
565	if (bg_pixmap)
566	XFreePixmap (dpy, bg_pixmap);
567	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
568	bg_pmap_width = new_pmap_width;
569	bg_pmap_height = new_pmap_height;
570	}
571	/* fill with background color (if result's not completely overlapping it) */
572	gcv.foreground = pix_colors[Color_bg];
573	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
574
575	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
576	int dst_width = result->width, dst_height = result->height;
577	if (background == NULL)
578	{
579	if (!(bg_flags & BG_TILE))
580	{
581	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
582	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
583	}
584
585	if (dst_x > 0 || dst_y > 0
586	|| dst_x + dst_width < new_pmap_width
587	|| dst_y + dst_height < new_pmap_height)
588	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
589	}
590
591	/* put result on pixmap */
592	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
593	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
594
595	if (result != background && result != original_asim)
596	destroy_asimage (&result);
597
598	XFreeGC (dpy, gc);
599
600	ret = true;
601	}
602
603	if (background)
604	destroy_asimage (&background);
605
606	return ret;
607	}
608	# endif /* HAVE_AFTERIMAGE */
609
610	# ifdef HAVE_PIXBUF
611	bool
612	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
613	int src_x, int src_y, int dst_x, int dst_y,
614	unsigned int width, unsigned int height)
615	{
616	XImage *ximage;
617	char *data, *line;
618	int bytes_per_pixel;
619	int width_r, width_g, width_b;
620	int sh_r, sh_g, sh_b;
621	int rowstride;
622	int channels;
623	unsigned char *row;
624
625	if (visual->c_class != TrueColor)
626	return false;
627
628	if (depth == 24 || depth == 32)
629	bytes_per_pixel = 4;
630	else if (depth == 15 || depth == 16)
631	bytes_per_pixel = 2;
632	else
633	return false;
634
635	width_r = ecb_popcount32 (visual->red_mask);
636	width_g = ecb_popcount32 (visual->green_mask);
637	width_b = ecb_popcount32 (visual->blue_mask);
638
639	if (width_r > 8 || width_g > 8 || width_b > 8)
640	return false;
641
642	sh_r = ecb_ctz32 (visual->red_mask);
643	sh_g = ecb_ctz32 (visual->green_mask);
644	sh_b = ecb_ctz32 (visual->blue_mask);
645
646	if (width > INT_MAX / height / bytes_per_pixel)
647	return false;
648
649	data = (char *)malloc (width * height * bytes_per_pixel);
650	if (!data)
651	return false;
652
653	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
654	width, height, bytes_per_pixel * 8, 0);
655	if (!ximage)
656	{
657	free (data);
658	return false;
659	}
660
661	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
662
663	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
664	channels = gdk_pixbuf_get_n_channels (pixbuf);
665	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
666	line = data;
667
668	for (int y = 0; y < height; y++)
669	{
670	for (int x = 0; x < width; x++)
671	{
672	unsigned char *pixel = row + x * channels;
673	uint32_t value;
674
675	value = ((pixel[0] >> (8 - width_r)) << sh_r)
676	| ((pixel[1] >> (8 - width_g)) << sh_g)
677	| ((pixel[2] >> (8 - width_b)) << sh_b);
678
679	if (bytes_per_pixel == 4)
680	((uint32_t *)line)[x] = value;
681	else
682	((uint16_t *)line)[x] = value;
683	}
684
685	row += rowstride;
686	line += ximage->bytes_per_line;
687	}
688
689	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
690	XDestroyImage (ximage);
691	return true;
692	}
693
694	bool
695	rxvt_term::render_image (unsigned long tr_flags)
696	{
697	if (!pixbuf)
698	return false;
699
700	if (tr_flags
701	&& !(bg_flags & BG_HAS_RENDER))
702	return false;
703
704	GdkPixbuf *result;
705
706	int image_width = gdk_pixbuf_get_width (pixbuf);
707	int image_height = gdk_pixbuf_get_height (pixbuf);
708
709	int target_width = szHint.width;
710	int target_height = szHint.height;
711	int new_pmap_width = target_width;
712	int new_pmap_height = target_height;
713
714	int x = 0;
715	int y = 0;
716	int w = 0;
717	int h = 0;
718
719	get_image_geometry (image_width, image_height, w, h, x, y);
720
721	if (!(bg_flags & BG_ROOT_ALIGN)	339	if (!(image.flags & IM_ROOT_ALIGN)
722	&& (x >= target_width	340	&& (x >= target_width
723	|| y >= target_height	341	|| y >= target_height
724	|| (x + w <= 0)	342	|| x + w <= 0
725	|| (y + h <= 0)))	343	|| y + h <= 0))
726	return false;	344	return false;
727		345
728	result = pixbuf;	346	rxvt_img *img = image.img->scale (w, h);
729		347
730	if ((w != image_width)	348	if (image.flags & IM_TILE)
731	|| (h != image_height))	349	img->repeat_mode (RepeatNormal);
732	{
733	result = gdk_pixbuf_scale_simple (pixbuf,
734	w, h,
735	GDK_INTERP_BILINEAR);
736	}
737
738	if (!result)
739	return false;
740
741	bool ret = false;
742
743	XGCValues gcv;
744	GC gc;
745	Pixmap root_pmap;
746
747	image_width = gdk_pixbuf_get_width (result);
748	image_height = gdk_pixbuf_get_height (result);
749
750	if (tr_flags)
751	{
752	root_pmap = bg_pixmap;
753	bg_pixmap = None;
754	}
755	else	350	else
756	{	351	img->repeat_mode (RepeatNone);
		352	img->sub_rect (-x, -y, target_width, target_height)->replace (img);
		353
757	if (bg_flags & BG_TILE)	354	if (bg_flags & BG_IS_VALID)
758	{
759	new_pmap_width = min (image_width, target_width);
760	new_pmap_height = min (image_height, target_height);
761	}
762	}	355	{
763		356	double factor = image.alpha * 1. / 0xffff;
764	if (bg_pixmap == None	357	bg_img->blend (img, factor)->replace (img);
765	|| bg_pmap_width != new_pmap_width
766	|| bg_pmap_height != new_pmap_height)
767	{	358	}
768	if (bg_pixmap)
769	XFreePixmap (dpy, bg_pixmap);
770	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
771	bg_pmap_width = new_pmap_width;
772	bg_pmap_height = new_pmap_height;
773	}
774		359
775	gcv.foreground = pix_colors[Color_bg];
776	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
777
778	if (gc)
779	{
780	if (bg_flags & BG_TILE)
781	{
782	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
783	pixbuf_to_pixmap (result, tile, gc,
784	0, 0,
785	0, 0,
786	image_width, image_height);
787
788	gcv.tile = tile;
789	gcv.fill_style = FillTiled;
790	gcv.ts_x_origin = x;
791	gcv.ts_y_origin = y;
792	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
793
794	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
795	XFreePixmap (dpy, tile);
796	}
797	else
798	{
799	int src_x, src_y, dst_x, dst_y;
800	int dst_width, dst_height;
801
802	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
803	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
804
805	if (dst_x > 0 || dst_y > 0
806	|| dst_x + dst_width < new_pmap_width
807	|| dst_y + dst_height < new_pmap_height)
808	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
809
810	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
811	pixbuf_to_pixmap (result, bg_pixmap, gc,
812	src_x, src_y,
813	dst_x, dst_y,
814	dst_width, dst_height);
815	}
816
817	#if XRENDER
818	if (tr_flags)
819	{
820	XRenderPictureAttributes pa;
821
822	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, visual);	360	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
823	Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);	361	img->convert_format (format, pix_colors [Color_bg])->replace (img);
824		362
825	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	363	delete bg_img;
826	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);	364	bg_img = img;
827		365
828	pa.repeat = True;
829	Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
830	XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
831	Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
832	XFreePixmap (dpy, mask_pmap);
833
834	XRenderColor mask_c;
835
836	mask_c.alpha = 0x8000;
837	mask_c.red = 0;
838	mask_c.green = 0;
839	mask_c.blue = 0;
840	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
841	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
842
843	XRenderFreePicture (dpy, src);
844	XRenderFreePicture (dpy, dst);
845	XRenderFreePicture (dpy, mask);
846	}
847	#endif
848
849	XFreeGC (dpy, gc);
850
851	ret = true;
852	}
853
854	if (result != pixbuf)
855	g_object_unref (result);
856
857	if (tr_flags)
858	XFreePixmap (dpy, root_pmap);
859
860	return ret;	366	return true;
861	}	367	}
862	# endif /* HAVE_PIXBUF */
863		368
		369	rxvt_image::rxvt_image ()
		370	{
		371	alpha = 0xffff;
		372	flags = 0;
		373	h_scale =
		374	v_scale = defaultScale;
		375	h_align =
		376	v_align = defaultAlign;
		377
		378	img = 0;
		379	}
		380
864	bool	381	bool
865	rxvt_term::bg_set_file (const char *file)	382	rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
866	{	383	{
867	if (!file || !*file)	384	if (!file || !*file)
868	return false;	385	return false;
869		386
870	if (const char *p = strchr (file, ';'))	387	const char *p = strchr (file, ';');
		388
		389	if (p)
871	{	390	{
872	size_t len = p - file;	391	size_t len = p - file;
873	char *f = rxvt_temp_buf<char> (len + 1);	392	char *f = rxvt_temp_buf<char> (len + 1);
874	memcpy (f, file, len);	393	memcpy (f, file, len);
875	f[len] = '\0';	394	f[len] = '\0';
876	file = f;	395	file = f;
877	}	396	}
878		397
879	# ifdef HAVE_AFTERIMAGE	398	bool ret = set_file (s, file);
880	if (!asimman)	399	alpha = 0x8000;
881	asimman = create_generic_imageman (rs[Rs_path]);	400	if (ret)
882	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);	401	set_geometry (p ? p + 1 : "");
883	if (image)
884	{
885	if (original_asim)
886	safe_asimage_destroy (original_asim);
887	original_asim = image;
888	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
889	return true;
890	}
891	# endif
892
893	# ifdef HAVE_PIXBUF
894	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
895	if (image)
896	{
897	if (pixbuf)
898	g_object_unref (pixbuf);
899	pixbuf = image;
900	bg_flags |= BG_IS_FROM_FILE;
901	return true;
902	}
903	# endif
904
905	return false;	402	return ret;
		403	}
		404
		405	bool
		406	rxvt_image::set_file (rxvt_screen *s, const char *file)
		407	{
		408	delete img;
		409	img = rxvt_img::new_from_file (s, file);
		410	return img != 0;
906	}	411	}
907		412
908	# endif /* BG_IMAGE_FROM_FILE */	413	# endif /* BG_IMAGE_FROM_FILE */
909		414
910	# ifdef ENABLE_TRANSPARENCY
911	bool	415	bool
912	rxvt_term::bg_set_transparent ()	416	image_effects::set_blur (const char *geom)
913	{
914	if (!(bg_flags & BG_IS_TRANSPARENT))
915	{
916	bg_flags |= BG_IS_TRANSPARENT;
917	return true;
918	}
919
920	return false;
921	}
922
923	bool
924	rxvt_term::bg_set_blur (const char *geom)
925	{	417	{
926	bool changed = false;	418	bool changed = false;
927	unsigned int hr, vr;	419	unsigned int hr, vr;
928	int junk;	420	int junk;
929	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	421	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
946	{	438	{
947	changed = true;	439	changed = true;
948	v_blurRadius = vr;	440	v_blurRadius = vr;
949	}	441	}
950		442
951	if (v_blurRadius == 0 && h_blurRadius == 0)
952	bg_flags &= ~BG_NEEDS_BLUR;
953	else
954	bg_flags |= BG_NEEDS_BLUR;
955
956	return changed;	443	return changed;
957	}	444	}
958		445
959	void
960	rxvt_term::set_tint_shade_flags ()
961	{
962	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
963	bool has_shade = shade != 100;
964
965	bg_flags &= ~BG_TINT_FLAGS;
966
967	if (bg_flags & BG_TINT_SET)
968	{
969	tint.get (c);
970	if (!has_shade
971	&& (c.r <= 0x00ff || c.r >= 0xff00)
972	&& (c.g <= 0x00ff || c.g >= 0xff00)
973	&& (c.b <= 0x00ff || c.b >= 0xff00))
974	bg_flags |= BG_TINT_BITAND;
975	}
976
977	if (has_shade || (bg_flags & BG_TINT_SET))
978	bg_flags |= BG_NEEDS_TINT;
979	}
980
981	bool	446	bool
982	rxvt_term::bg_set_tint (rxvt_color &new_tint)	447	image_effects::set_tint (const rxvt_color &new_tint)
983	{	448	{
984	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	449	if (!tint_set || tint != new_tint)
985	{	450	{
986	tint = new_tint;	451	tint = new_tint;
987	bg_flags |= BG_TINT_SET;	452	tint_set = true;
988	set_tint_shade_flags ();	453
989	return true;	454	return true;
990	}	455	}
991		456
992	return false;	457	return false;
993	}	458	}
994		459
995	bool	460	bool
996	rxvt_term::bg_set_shade (const char *shade_str)	461	image_effects::set_shade (const char *shade_str)
997	{	462	{
998	int new_shade = (shade_str) ? atoi (shade_str) : 100;	463	int new_shade = atoi (shade_str);
999		464
1000	clamp_it (new_shade, -100, 200);	465	clamp_it (new_shade, -100, 200);
1001	if (new_shade < 0)	466	if (new_shade < 0)
1002	new_shade = 200 - (100 + new_shade);	467	new_shade = 200 - (100 + new_shade);
1003		468
1004	if (new_shade != shade)	469	if (new_shade != shade)
1005	{	470	{
1006	shade = new_shade;	471	shade = new_shade;
1007	set_tint_shade_flags ();
1008	return true;	472	return true;
1009	}	473	}
1010		474
1011	return false;	475	return false;
1012	}	476	}
1013		477
1014	#if XRENDER	478	# if ENABLE_TRANSPARENCY
1015	static void
1016	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1017	{
1018	double sigma = radius / 2.0;
1019	double scale = sqrt (2.0 * M_PI) * sigma;
1020	double sum = 0.0;
1021
1022	for (int i = 0; i < width; i++)
1023	{
1024	double x = i - width / 2;
1025	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1026	sum += kernel[i];
1027	}
1028
1029	params[0] = XDoubleToFixed (width);
1030	params[1] = XDoubleToFixed (1);
1031
1032	for (int i = 0; i < width; i++)
1033	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1034	}
1035	#endif
1036
1037	bool
1038	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1039	{
1040	bool ret = false;
1041	#if XRENDER
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	else
1125	{
1126	# if XRENDER
1127	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1128
1129	if (bg_flags & BG_TINT_SET)
1130	tint.get (c);
1131
1132	if (shade <= 100)
1133	{
1134	c.r = c.r * shade / 100;
1135	c.g = c.g * shade / 100;
1136	c.b = c.b * shade / 100;
1137	}
1138	else
1139	{
1140	c.r = c.r * (200 - shade) / 100;
1141	c.g = c.g * (200 - shade) / 100;
1142	c.b = c.b * (200 - shade) / 100;
1143	}
1144
1145	XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1146	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1147	XRenderPictureAttributes pa;
1148
1149	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1150
1151	pa.repeat = True;
1152
1153	Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1154	Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1155	XFreePixmap (dpy, overlay_pmap);
1156
1157	pa.component_alpha = True;
1158	Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1159	Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1160	XFreePixmap (dpy, mask_pmap);
1161
1162	XRenderColor mask_c;
1163
1164	mask_c.alpha = 0xffff;
1165	mask_c.red =
1166	mask_c.green =
1167	mask_c.blue = 0;
1168	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1169
1170	mask_c.alpha = 0;
1171	mask_c.red = 0xffff - c.r;
1172	mask_c.green = 0xffff - c.g;
1173	mask_c.blue = 0xffff - c.b;
1174	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1175	XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1176
1177	if (shade > 100)
1178	{
1179	mask_c.red = mask_c.green = mask_c.blue = 0xffff * (shade - 100) / 100;
1180	mask_c.alpha = 0;
1181	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1182
1183	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1184	}
1185
1186	ret = true;
1187
1188	XRenderFreePicture (dpy, mask_pic);
1189	XRenderFreePicture (dpy, overlay_pic);
1190	XRenderFreePicture (dpy, back_pic);
1191	# endif
1192	}
1193
1194	return ret;
1195	}
1196
1197	/*	479	/*
1198	* Builds a pixmap of the same size as the terminal window that contains	480	* Builds a pixmap of the same size as the terminal window that contains
1199	* the tiled portion of the root pixmap that is supposed to be covered by	481	* the tiled portion of the root pixmap that is supposed to be covered by
1200	* our window.	482	* our window.
1201	*/	483	*/
1202	unsigned long	484	bool
1203	rxvt_term::make_transparency_pixmap ()	485	rxvt_term::render_root_image ()
1204	{	486	{
1205	unsigned long result = 0;
1206
1207	/* root dimensions may change from call to call - but Display structure should	487	/* root dimensions may change from call to call - but Display structure should
1208	* be always up-to-date, so let's use it :	488	* be always up-to-date, so let's use it :
1209	*/	489	*/
1210	int screen = display->screen;	490	int screen = display->screen;
1211	int root_depth = DefaultDepth (dpy, screen);
1212	int root_width = DisplayWidth (dpy, screen);	491	int root_width = DisplayWidth (dpy, screen);
1213	int root_height = DisplayHeight (dpy, screen);	492	int root_height = DisplayHeight (dpy, screen);
1214	unsigned int root_pmap_width, root_pmap_height;
1215	int window_width = szHint.width;	493	int window_width = szHint.width;
1216	int window_height = szHint.height;	494	int window_height = szHint.height;
1217	int sx, sy;	495	int sx, sy;
1218	XGCValues gcv;
1219	GC gc;
1220		496
1221	sx = target_x;	497	sx = target_x;
1222	sy = target_y;	498	sy = target_y;
		499
		500	if (!root_img)
		501	return false;
1223		502
1224	/* check if we are outside of the visible part of the virtual screen : */	503	/* check if we are outside of the visible part of the virtual screen : */
1225	if (sx + window_width <= 0 || sy + window_height <= 0	504	if (sx + window_width <= 0 || sy + window_height <= 0
1226	|| sx >= root_width || sy >= root_height)	505	|| sx >= root_width || sy >= root_height)
1227	return 0;	506	return 0;
1228		507
1229	// validate root pixmap and get its size	508	while (sx < 0) sx += root_img->w;
1230	if (root_pixmap != None)	509	while (sy < 0) sy += root_img->h;
1231	{
1232	Window wdummy;
1233	int idummy;
1234	unsigned int udummy;
1235		510
1236	allowedxerror = -1;	511	rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
1237		512
1238	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	513	if (root_effects.need_blur ())
1239	root_pixmap = None;	514	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1240		515
1241	allowedxerror = 0;	516	if (root_effects.need_tint ())
1242	}	517	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1243		518
1244	Pixmap recoded_root_pmap = root_pixmap;
1245
1246	if (root_pixmap != None && root_depth != depth)
1247	{
1248	#if XRENDER
1249	if (bg_flags & BG_HAS_RENDER)
1250	{
1251	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1252
1253	XRenderPictureAttributes pa;
1254
1255	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1256	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, &pa);
1257
1258	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	519	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1259	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, &pa);	520	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1260		521
1261	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height);	522	delete bg_img;
		523	bg_img = img;
1262		524
1263	XRenderFreePicture (dpy, src);
1264	XRenderFreePicture (dpy, dst);
1265	}
1266	else
1267	#endif
1268	recoded_root_pmap = None;
1269	}
1270
1271	if (recoded_root_pmap == None)
1272	return 0;
1273
1274	if (bg_pixmap == None
1275	|| bg_pmap_width != window_width
1276	|| bg_pmap_height != window_height)
1277	{
1278	if (bg_pixmap)
1279	XFreePixmap (dpy, bg_pixmap);
1280	bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1281	bg_pmap_width = window_width;
1282	bg_pmap_height = window_height;
1283	}
1284
1285	/* straightforward pixmap copy */
1286	while (sx < 0) sx += root_width;
1287	while (sy < 0) sy += root_height;
1288
1289	gcv.tile = recoded_root_pmap;
1290	gcv.fill_style = FillTiled;
1291	gcv.ts_x_origin = -sx;
1292	gcv.ts_y_origin = -sy;
1293	gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1294
1295	if (gc)
1296	{
1297	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1298	result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1299	XFreeGC (dpy, gc);
1300
1301	if (!(bg_flags & BG_CLIENT_RENDER))
1302	{
1303	if ((bg_flags & BG_NEEDS_BLUR)
1304	&& (bg_flags & BG_HAS_RENDER_CONV))
1305	{
1306	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1307	result &= ~BG_NEEDS_BLUR;
1308	}
1309	if ((bg_flags & BG_NEEDS_TINT)
1310	&& (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1311	{
1312	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1313	result &= ~BG_NEEDS_TINT;
1314	}
1315	} /* server side rendering completed */
1316	}
1317
1318	if (recoded_root_pmap != root_pixmap)
1319	XFreePixmap (dpy, recoded_root_pmap);
1320
1321	return result;	525	return true;
1322	}	526	}
1323		527
1324	void	528	void
1325	rxvt_term::bg_set_root_pixmap ()	529	rxvt_term::bg_set_root_pixmap ()
1326	{	530	{
1327	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	531	delete root_img;
1328	if (new_root_pixmap == None)	532	root_img = rxvt_img::new_from_root (this);
1329	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1330
1331	root_pixmap = new_root_pixmap;
1332	}	533	}
1333	# endif /* ENABLE_TRANSPARENCY */	534	# endif /* ENABLE_TRANSPARENCY */
1334		535
1335	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)	536	void
1336	static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1337	# endif
1338
1339	bool
1340	rxvt_term::bg_render ()	537	rxvt_term::bg_render ()
1341	{	538	{
1342	unsigned long tr_flags = 0;	539	if (bg_flags & BG_INHIBIT_RENDER)
		540	return;
1343		541
1344	bg_invalidate ();	542	bg_invalidate ();
1345	# ifdef ENABLE_TRANSPARENCY	543	# if ENABLE_TRANSPARENCY
1346	if (bg_flags & BG_IS_TRANSPARENT)	544	if (bg_flags & BG_IS_TRANSPARENT)
1347	{	545	{
1348	/* we need to re-generate transparency pixmap in that case ! */	546	/* we need to re-generate transparency pixmap in that case ! */
1349	tr_flags = make_transparency_pixmap ();	547	if (render_root_image ())
1350	if (tr_flags == 0)
1351	return false;
1352	else if (!(tr_flags & BG_EFFECTS_FLAGS))
1353	bg_flags |= BG_IS_VALID;	548	bg_flags |= BG_IS_VALID;
1354	}	549	}
1355	# endif	550	# endif
1356		551
1357	# ifdef BG_IMAGE_FROM_FILE	552	# if BG_IMAGE_FROM_FILE
1358	if ((bg_flags & BG_IS_FROM_FILE)	553	if (fimage.img)
1359	|| (tr_flags & BG_EFFECTS_FLAGS))
1360	{	554	{
1361	if (render_image (tr_flags))	555	if (render_image (fimage))
1362	bg_flags |= BG_IS_VALID;	556	bg_flags |= BG_IS_VALID;
1363	}	557	}
1364	# endif	558	# endif
1365		559
1366	# if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1367	XImage *result = NULL;
1368
1369	if (tr_flags && !(bg_flags & BG_IS_VALID))
1370	{
1371	result = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1372	}
1373
1374	if (result)
1375	{
1376	/* our own client-side tinting */
1377	if (tr_flags & BG_NEEDS_TINT)
1378	{
1379	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1380	if (bg_flags & BG_TINT_SET)
1381	tint.get (c);
1382	shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c);
1383	}
1384
1385	GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1386
1387	if (gc)
1388	{
1389	XPutImage (dpy, bg_pixmap, gc, result, 0, 0, 0, 0, result->width, result->height);
1390
1391	XFreeGC (dpy, gc);
1392	bg_flags |= BG_IS_VALID;
1393	}
1394
1395	XDestroyImage (result);
1396	}
1397	# endif
1398
1399	if (!(bg_flags & BG_IS_VALID))	560	if (!(bg_flags & BG_IS_VALID))
1400	{	561	{
1401	if (bg_pixmap != None)	562	delete bg_img;
1402	{	563	bg_img = 0;
1403	XFreePixmap (dpy, bg_pixmap);
1404	bg_pixmap = None;
1405	}
1406	}	564	}
1407		565
1408	scr_recolour (false);	566	scr_recolour (false);
1409	bg_flags |= BG_NEEDS_REFRESH;	567	bg_flags |= BG_NEEDS_REFRESH;
1410		568
1411	bg_valid_since = ev::now ();	569	bg_valid_since = ev::now ();
1412
1413	return true;
1414	}	570	}
1415		571
1416	void	572	void
1417	rxvt_term::bg_init ()	573	rxvt_term::bg_init ()
1418	{	574	{
1419	#ifdef ENABLE_TRANSPARENCY	575	#if BG_IMAGE_FROM_FILE
1420	shade = 100;	576	if (rs[Rs_backgroundPixmap])
		577	{
		578	if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
		579	&& !bg_window_position_sensitive ())
		580	update_background ();
		581	}
1421	#endif	582	#endif
		583	}
1422		584
1423	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);	585	void
1424	#if XRENDER	586	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1425	int major, minor;	587	{
1426	if (XRenderQueryVersion (dpy, &major, &minor))	588	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1427	bg_flags |= BG_HAS_RENDER;
1428	XFilters *filters = XRenderQueryFilters (dpy, vt);
1429	if (filters)
1430	{
1431	for (int i = 0; i < filters->nfilter; i++)
1432	if (!strcmp (filters->filter[i], FilterConvolution))
1433	bg_flags |= BG_HAS_RENDER_CONV;
1434		589
1435	XFree (filters);	590	if (tint_set)
		591	tint.get (c);
		592
		593	if (shade > 100)
1436	}	594	{
1437	#endif	595	c.r = c.r * (200 - shade) / 100;
		596	c.g = c.g * (200 - shade) / 100;
		597	c.b = c.b * (200 - shade) / 100;
		598	}
		599	else
		600	{
		601	c.r = c.r * shade / 100;
		602	c.g = c.g * shade / 100;
		603	c.b = c.b * shade / 100;
		604	}
		605
		606	img->contrast (c.r, c.g, c.b, c.a);
		607
		608	if (shade > 100)
		609	{
		610	c.a = 0xffff;
		611	c.r =
		612	c.g =
		613	c.b = 0xffff * (shade - 100) / 100;
		614	img->brightness (c.r, c.g, c.b, c.a);
		615	}
1438	}	616	}
1439		617
1440	#endif /* HAVE_BG_PIXMAP */	618	#endif /* HAVE_BG_PIXMAP */
1441
1442	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1443	/* taken from aterm-0.4.2 */
1444
1445	static void
1446	shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c)
1447	{
1448	int sh_r, sh_g, sh_b;
1449	uint32_t mask_r, mask_g, mask_b;
1450	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1451	rgba low;
1452	rgba high;
1453	int i;
1454	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1455
1456	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1457
1458	/* for convenience */
1459	mask_r = visual->red_mask;
1460	mask_g = visual->green_mask;
1461	mask_b = visual->blue_mask;
1462
1463	/* boring lookup table pre-initialization */
1464	switch (ximage->depth)
1465	{
1466	case 15:
1467	if ((mask_r != 0x7c00) ||
1468	(mask_g != 0x03e0) ||
1469	(mask_b != 0x001f))
1470	return;
1471	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1472	lookup_r = lookup;
1473	lookup_g = lookup+32;
1474	lookup_b = lookup+32+32;
1475	sh_r = 10;
1476	sh_g = 5;
1477	sh_b = 0;
1478	break;
1479	case 16:
1480	if ((mask_r != 0xf800) ||
1481	(mask_g != 0x07e0) ||
1482	(mask_b != 0x001f))
1483	return;
1484	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1485	lookup_r = lookup;
1486	lookup_g = lookup+32;
1487	lookup_b = lookup+32+64;
1488	sh_r = 11;
1489	sh_g = 5;
1490	sh_b = 0;
1491	break;
1492	case 24:
1493	if ((mask_r != 0xff0000) ||
1494	(mask_g != 0x00ff00) ||
1495	(mask_b != 0x0000ff))
1496	return;
1497	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1498	lookup_r = lookup;
1499	lookup_g = lookup+256;
1500	lookup_b = lookup+256+256;
1501	sh_r = 16;
1502	sh_g = 8;
1503	sh_b = 0;
1504	break;
1505	case 32:
1506	if ((mask_r != 0xff0000) ||
1507	(mask_g != 0x00ff00) ||
1508	(mask_b != 0x0000ff))
1509	return;
1510	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1511	lookup_r = lookup;
1512	lookup_g = lookup+256;
1513	lookup_b = lookup+256+256;
1514	sh_r = 16;
1515	sh_g = 8;
1516	sh_b = 0;
1517	break;
1518	default:
1519	return; /* we do not support this color depth */
1520	}
1521
1522	/* prepare limits for color transformation (each channel is handled separately) */
1523	if (shade > 100)
1524	{
1525	shade = 200 - shade;
1526
1527	high.r = c.r * shade / 100;
1528	high.g = c.g * shade / 100;
1529	high.b = c.b * shade / 100;
1530
1531	low.r = 65535 * (100 - shade) / 100;
1532	low.g = 65535 * (100 - shade) / 100;
1533	low.b = 65535 * (100 - shade) / 100;
1534	}
1535	else
1536	{
1537	high.r = c.r * shade / 100;
1538	high.g = c.g * shade / 100;
1539	high.b = c.b * shade / 100;
1540
1541	low.r = low.g = low.b = 0;
1542	}
1543
1544	/* fill our lookup tables */
1545	for (i = 0; i <= mask_r>>sh_r; i++)
1546	{
1547	uint32_t tmp;
1548	tmp = i * high.r;
1549	tmp += (mask_r>>sh_r) * low.r;
1550	lookup_r[i] = (tmp/65535)<<sh_r;
1551	}
1552	for (i = 0; i <= mask_g>>sh_g; i++)
1553	{
1554	uint32_t tmp;
1555	tmp = i * high.g;
1556	tmp += (mask_g>>sh_g) * low.g;
1557	lookup_g[i] = (tmp/65535)<<sh_g;
1558	}
1559	for (i = 0; i <= mask_b>>sh_b; i++)
1560	{
1561	uint32_t tmp;
1562	tmp = i * high.b;
1563	tmp += (mask_b>>sh_b) * low.b;
1564	lookup_b[i] = (tmp/65535)<<sh_b;
1565	}
1566
1567	/* apply table to input image (replacing colors by newly calculated ones) */
1568	if (ximage->bits_per_pixel == 32
1569	&& (ximage->depth == 24 || ximage->depth == 32)
1570	&& ximage->byte_order == host_byte_order)
1571	{
1572	uint32_t *p1, *pf, *p, *pl;
1573	p1 = (uint32_t *) ximage->data;
1574	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1575
1576	while (p1 < pf)
1577	{
1578	p = p1;
1579	pl = p1 + ximage->width;
1580	for (; p < pl; p++)
1581	{
1582	*p = lookup_r[(*p & 0xff0000) >> 16] |
1583	lookup_g[(*p & 0x00ff00) >> 8] |
1584	lookup_b[(*p & 0x0000ff)] |
1585	(*p & 0xff000000);
1586	}
1587	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1588	}
1589	}
1590	else
1591	{
1592	for (int y = 0; y < ximage->height; y++)
1593	for (int x = 0; x < ximage->width; x++)
1594	{
1595	unsigned long pixel = XGetPixel (ximage, x, y);
1596	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1597	lookup_g[(pixel & mask_g) >> sh_g] |
1598	lookup_b[(pixel & mask_b) >> sh_b];
1599	XPutPixel (ximage, x, y, pixel);
1600	}
1601	}
1602
1603	free (lookup);
1604	}
1605	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */

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