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/cvs/rxvt-unicode/src/background.C

Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.194 by sf-exg, Sun Jan 1 17:43:47 2012 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	#ifdef HAVE_BG_PIXMAP	28	#ifdef HAVE_BG_PIXMAP
38	# if XRENDER
39	static Picture
40	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
41	{
42	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
43
44	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
45	XRenderPictureAttributes pa;
46	pa.repeat = True;
47	pa.component_alpha = component_alpha;
48	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
49
50	XFreePixmap (dpy, pixmap);
51
52	return mask;
53	}
54	# endif
55		29
56	void	30	void
57	rxvt_term::bg_destroy ()	31	rxvt_term::bg_destroy ()
58	{	32	{
59	#ifdef HAVE_AFTERIMAGE	33	# if ENABLE_TRANSPARENCY
60	if (original_asim)	34	delete root_img;
61	safe_asimage_destroy (original_asim);	35	root_img = 0;
62	if (asv)
63	destroy_asvisual (asv, 0);
64	if (asimman)
65	destroy_image_manager (asimman, 0);
66	#endif	36	# endif
67		37
68	#ifdef HAVE_PIXBUF	38	# if BG_IMAGE_FROM_FILE
69	if (pixbuf)	39	fimage.destroy ();
70	g_object_unref (pixbuf);
71	#endif	40	# endif
72		41
73	if (bg_pixmap)	42	delete bg_img;
74	XFreePixmap (dpy, bg_pixmap);	43	bg_img = 0;
75	}	44	}
76		45
77	bool	46	bool
78	rxvt_term::bg_set_position (int x, int y)	47	rxvt_term::bg_set_position (int x, int y)
79	{	48	{
…		…
89	}	58	}
90		59
91	bool	60	bool
92	rxvt_term::bg_window_size_sensitive ()	61	rxvt_term::bg_window_size_sensitive ()
93	{	62	{
94	# ifdef ENABLE_TRANSPARENCY	63	# if ENABLE_TRANSPARENCY
95	if (bg_flags & BG_IS_TRANSPARENT)	64	if (bg_flags & BG_IS_TRANSPARENT)
96	return true;	65	return true;
97	# endif	66	# endif
98		67
99	# ifdef BG_IMAGE_FROM_FILE	68	# if BG_IMAGE_FROM_FILE
100	if (bg_flags & BG_IS_FROM_FILE)	69	if (fimage.img)
101	{	70	{
102	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)
103	return true;	74	return true;
104	}	75	}
105	# endif	76	# endif
106		77
107	return false;	78	return false;
108	}	79	}
109		80
110	bool	81	bool
111	rxvt_term::bg_window_position_sensitive ()	82	rxvt_term::bg_window_position_sensitive ()
112	{	83	{
113	# ifdef ENABLE_TRANSPARENCY	84	# if ENABLE_TRANSPARENCY
114	if (bg_flags & BG_IS_TRANSPARENT)	85	if (bg_flags & BG_IS_TRANSPARENT)
115	return true;	86	return true;
116	# endif	87	# endif
117		88
118	# ifdef BG_IMAGE_FROM_FILE	89	# if BG_IMAGE_FROM_FILE
119	if (bg_flags & BG_IS_FROM_FILE)	90	if (fimage.img)
120	{	91	{
121	if (bg_flags & BG_ROOT_ALIGN)	92	if (fimage.flags & IM_ROOT_ALIGN)
122	return true;	93	return true;
123	}	94	}
124	# endif	95	# endif
125		96
126	return false;	97	return false;
127	}	98	}
128		99
129	# ifdef BG_IMAGE_FROM_FILE	100	# if BG_IMAGE_FROM_FILE
130	static inline bool
131	check_set_scale_value (int geom_flags, int flag, unsigned int &scale, unsigned int new_value)
132	{
133	if (geom_flags & flag)
134	{
135	if (new_value > 1000)
136	new_value = 1000;
137	if (new_value != scale)
138	{
139	scale = new_value;
140	return true;
141	}
142	}
143	return false;
144	}
145
146	static inline bool
147	check_set_align_value (int geom_flags, int flag, int &align, int new_value)
148	{
149	if (geom_flags & flag)
150	{
151	if (new_value < -100)
152	new_value = -100;
153	else if (new_value > 200)
154	new_value = 200;
155	if (new_value != align)
156	{
157	align = new_value;
158	return true;
159	}
160	}
161	return false;
162	}
163
164	static inline int	101	static inline int
165	make_align_position (int align, int window_size, int image_size)	102	make_align_position (int align, int window_size, int image_size)
166	{	103	{
167	int diff = window_size - image_size;
168	int smaller = min (image_size, window_size);
169
170	if (align >= 0 && align <= 100)	104	if (align >= 0 && align <= 100)
171	return diff * align / 100;	105	return lerp (0, window_size - image_size, align);
172	else if (align > 100 && align <= 200)	106	else if (align > 100)
173	return (align - 100) * smaller / 100 + window_size - smaller;	107	return lerp (window_size - image_size, window_size, align - 100);
174	else if (align >= -100 && align < 0)	108	else
175	return (align + 100) * smaller / 100 - image_size;	109	return lerp (-image_size, 0, align + 100);
176	return 0;
177	}	110	}
178		111
179	static inline int	112	static inline int
180	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)
181	{	114	{
…		…
187	src_pos = -pos;	120	src_pos = -pos;
188	dst_pos = 0;	121	dst_pos = 0;
189	dst_size += pos;	122	dst_size += pos;
190	}	123	}
191		124
192	if (dst_pos + dst_size > target_size)
193	dst_size = target_size - dst_pos;	125	min_it (dst_size, target_size - dst_pos);
194	return src_pos;	126	return src_pos;
195	}	127	}
196		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
197	bool	164	bool
198	rxvt_term::bg_set_geometry (const char *geom, bool update)	165	rxvt_image::set_geometry (const char *geom, bool update)
199	{	166	{
200	bool changed = false;	167	bool changed = false;
201	int geom_flags = 0;	168	int geom_flags = 0;
202	int x = 0, y = 0;	169	int x = h_align;
		170	int y = v_align;
203	unsigned int w = 0, h = 0;	171	unsigned int w = h_scale;
204	unsigned long new_flags = 0;	172	unsigned int h = v_scale;
		173	uint8_t new_flags = 0;
205		174
206	if (geom == NULL)	175	if (geom == NULL)
207	return false;	176	return false;
208		177
209	if (geom[0])	178	if (geom[0])
210	{	179	{
211	char **arr = rxvt_strsplit (':', geom);	180	char **arr = rxvt_strsplit (':', geom);
212		181
213	for (int i = 0; arr[i]; i++)	182	for (int i = 0; arr[i]; i++)
214	{	183	{
215	if (!strcasecmp (arr[i], "style=tiled"))	184	if (!strncasecmp (arr[i], "style=", 6))
216	{	185	{
217	new_flags = BG_TILE;	186	parse_style (arr[i] + 6, x, y, w, h, new_flags);
218	w = h = noScale;
219	x = y = 0;
220	geom_flags = WidthValue|HeightValue|XValue|YValue;	187	geom_flags = WidthValue|HeightValue|XValue|YValue;
221	}	188	}
222	else if (!strcasecmp (arr[i], "style=aspect-stretched"))
223	{
224	new_flags = BG_KEEP_ASPECT;
225	w = h = windowScale;
226	x = y = centerAlign;
227	geom_flags = WidthValue|HeightValue|XValue|YValue;
228	}
229	else if (!strcasecmp (arr[i], "style=stretched"))
230	{
231	new_flags = 0;
232	w = h = windowScale;
233	geom_flags = WidthValue|HeightValue;
234	}
235	else if (!strcasecmp (arr[i], "style=centered"))
236	{
237	new_flags = 0;
238	w = h = noScale;
239	x = y = centerAlign;
240	geom_flags = WidthValue|HeightValue|XValue|YValue;
241	}
242	else if (!strcasecmp (arr[i], "style=root-tiled"))
243	{
244	new_flags = BG_TILE|BG_ROOT_ALIGN;
245	w = h = noScale;
246	geom_flags = WidthValue|HeightValue;
247	}
248	else if (!strcasecmp (arr[i], "op=tile"))	189	else if (!strcasecmp (arr[i], "op=tile"))
249	new_flags |= BG_TILE;	190	new_flags |= IM_TILE;
250	else if (!strcasecmp (arr[i], "op=keep-aspect"))	191	else if (!strcasecmp (arr[i], "op=keep-aspect"))
251	new_flags |= BG_KEEP_ASPECT;	192	new_flags |= IM_KEEP_ASPECT;
252	else if (!strcasecmp (arr[i], "op=root-align"))	193	else if (!strcasecmp (arr[i], "op=root-align"))
253	new_flags |= BG_ROOT_ALIGN;	194	new_flags |= IM_ROOT_ALIGN;
254		195
255	// deprecated	196	// deprecated
256	else if (!strcasecmp (arr[i], "tile"))	197	else if (!strcasecmp (arr[i], "tile"))
257	{	198	{
258	new_flags |= BG_TILE;	199	new_flags |= IM_TILE;
259	w = h = noScale;	200	w = h = noScale;
260	geom_flags |= WidthValue|HeightValue;	201	geom_flags |= WidthValue|HeightValue;
261	}	202	}
262	else if (!strcasecmp (arr[i], "propscale"))	203	else if (!strcasecmp (arr[i], "propscale"))
263	{	204	{
264	new_flags |= BG_KEEP_ASPECT;	205	new_flags |= IM_KEEP_ASPECT;
265	w = h = windowScale;	206	w = h = windowScale;
266	geom_flags |= WidthValue|HeightValue;	207	geom_flags |= WidthValue|HeightValue;
267	}	208	}
268	else if (!strcasecmp (arr[i], "hscale"))	209	else if (!strcasecmp (arr[i], "hscale"))
269	{	210	{
270	new_flags |= BG_TILE;	211	new_flags |= IM_TILE;
271	w = windowScale;	212	w = windowScale;
272	h = noScale;	213	h = noScale;
273	geom_flags |= WidthValue|HeightValue;	214	geom_flags |= WidthValue|HeightValue;
274	}	215	}
275	else if (!strcasecmp (arr[i], "vscale"))	216	else if (!strcasecmp (arr[i], "vscale"))
276	{	217	{
277	new_flags |= BG_TILE;	218	new_flags |= IM_TILE;
278	h = windowScale;	219	h = windowScale;
279	w = noScale;	220	w = noScale;
280	geom_flags |= WidthValue|HeightValue;	221	geom_flags |= WidthValue|HeightValue;
281	}	222	}
282	else if (!strcasecmp (arr[i], "scale"))	223	else if (!strcasecmp (arr[i], "scale"))
…		…
290	x = y = centerAlign;	231	x = y = centerAlign;
291	geom_flags |= WidthValue|HeightValue|XValue|YValue;	232	geom_flags |= WidthValue|HeightValue|XValue|YValue;
292	}	233	}
293	else if (!strcasecmp (arr[i], "root"))	234	else if (!strcasecmp (arr[i], "root"))
294	{	235	{
295	new_flags |= BG_TILE|BG_ROOT_ALIGN;	236	new_flags |= IM_TILE|IM_ROOT_ALIGN;
296	w = h = noScale;	237	w = h = noScale;
297	geom_flags |= WidthValue|HeightValue;	238	geom_flags |= WidthValue|HeightValue;
298	}	239	}
299		240
300	else	241	else
…		…
302	} /* done parsing ops */	243	} /* done parsing ops */
303		244
304	rxvt_free_strsplit (arr);	245	rxvt_free_strsplit (arr);
305	}	246	}
306		247
307	new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;	248	new_flags |= flags & ~IM_GEOMETRY_FLAGS;
308		249
309	if (!update)	250	if (!update)
310	{	251	{
311	if (!(geom_flags & XValue))	252	if (!(geom_flags & XValue))
312	x = y = defaultAlign;	253	x = y = defaultAlign;
…		…
317	w = h = defaultScale;	258	w = h = defaultScale;
318	else if (!(geom_flags & HeightValue))	259	else if (!(geom_flags & HeightValue))
319	h = w;	260	h = w;
320	else if (!(geom_flags & WidthValue))	261	else if (!(geom_flags & WidthValue))
321	w = h;	262	w = h;
322
323	geom_flags |= WidthValue|HeightValue|XValue|YValue;
324	}
325
326	if (check_set_scale_value (geom_flags, WidthValue, h_scale, w)) changed = true;
327	if (check_set_scale_value (geom_flags, HeightValue, v_scale, h)) changed = true;
328	if (check_set_align_value (geom_flags, XValue, h_align, x)) changed = true;
329	if (check_set_align_value (geom_flags, YValue, v_align, y)) changed = true;
330
331	if (new_flags != bg_flags)
332	{	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	{
333	bg_flags = new_flags;	274	flags = new_flags;
		275	h_scale = w;
		276	v_scale = h;
		277	h_align = x;
		278	v_align = y;
334	changed = true;	279	changed = true;
335	}	280	}
336		281
		282	if (is_size_sensitive ())
		283	flags |= IM_IS_SIZE_SENSITIVE;
		284	else
		285	flags &= ~IM_IS_SIZE_SENSITIVE;
		286
337	return changed;	287	return changed;
338	}	288	}
339		289
340	void	290	void
341	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)
342	{	292	{
		293	int image_width = image.img->w;
		294	int image_height = image.img->h;
343	int target_width = szHint.width;	295	int target_width = szHint.width;
344	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);
345		299
346	w = h_scale * target_width / 100;	300	w = h_scale * target_width / 100;
347	h = v_scale * target_height / 100;	301	h = v_scale * target_height / 100;
348		302
349	if (bg_flags & BG_KEEP_ASPECT)	303	if (image.flags & IM_KEEP_ASPECT)
350	{	304	{
351	float scale = (float)w / image_width;	305	float scale = (float)w / image_width;
352	min_it (scale, (float)h / image_height);	306	min_it (scale, (float)h / image_height);
353	w = image_width * scale + 0.5;	307	w = image_width * scale + 0.5;
354	h = image_height * scale + 0.5;	308	h = image_height * scale + 0.5;
355	}	309	}
356		310
357	if (!w) w = image_width;	311	if (!w) w = image_width;
358	if (!h) h = image_height;	312	if (!h) h = image_height;
359		313
360	if (bg_flags & BG_ROOT_ALIGN)	314	if (image.flags & IM_ROOT_ALIGN)
361	{	315	{
362	x = -target_x;	316	x = -target_x;
363	y = -target_y;	317	y = -target_y;
364	}	318	}
365	else	319	else
366	{	320	{
367	x = make_align_position (h_align, target_width, w);	321	x = make_align_position (image.h_align, target_width, w);
368	y = make_align_position (v_align, target_height, h);	322	y = make_align_position (image.v_align, target_height, h);
369	}
370
371	bg_flags &= ~BG_IS_SIZE_SENSITIVE;
372	if (!(bg_flags & BG_TILE)
373	|| h_scale || v_scale
374	|| (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
375	|| w > target_width || h > target_height)
376	bg_flags |= BG_IS_SIZE_SENSITIVE;
377	}
378
379	# ifdef HAVE_AFTERIMAGE
380	bool
381	rxvt_term::render_image (unsigned long tr_flags)
382	{
383	init_asv ();
384
385	ASImage *background = NULL;
386	ARGB32 background_tint = TINT_LEAVE_SAME;
387
388	# ifdef ENABLE_TRANSPARENCY
389	if (tr_flags)
390	background = pixmap2ximage (asv, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, 100);
391
392	if (tr_flags & BG_NEEDS_TINT)
393	{	323	}
394	ShadingInfo as_shade;	324	}
395	as_shade.shading = shade;
396		325
397	rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);	326	bool
398	if (bg_flags & BG_TINT_SET)	327	rxvt_term::render_image (rxvt_image &image)
399	tint.get (c);	328	{
400	as_shade.tintColor.red = c.r;
401	as_shade.tintColor.green = c.g;
402	as_shade.tintColor.blue = c.b;
403
404	background_tint = shading2tint32 (&as_shade);
405	}
406
407	if ((tr_flags & BG_NEEDS_BLUR) && background != NULL)
408	{
409	ASImage *tmp = blur_asimage_gauss (asv, background, h_blurRadius, v_blurRadius, 0xFFFFFFFF,
410	ASA_XImage,
411	100, ASIMAGE_QUALITY_DEFAULT);
412	if (tmp)
413	{
414	destroy_asimage (&background);
415	background = tmp;
416	}
417	}
418	# endif
419
420	ASImage *result = 0;
421
422	int target_width = szHint.width;	329	int target_width = szHint.width;
423	int target_height = szHint.height;	330	int target_height = szHint.height;
424	int new_pmap_width = target_width;
425	int new_pmap_height = target_height;
426		331
427	int x = 0;	332	int x = 0;
428	int y = 0;	333	int y = 0;
429	int w = 0;	334	int w = 0;
430	int h = 0;	335	int h = 0;
431		336
432	if (original_asim)	337	get_image_geometry (image, w, h, x, y);
433	get_image_geometry (original_asim->width, original_asim->height, w, h, x, y);
434		338
435	if (!original_asim
436	|| (!(bg_flags & BG_ROOT_ALIGN)
437	&& (x >= target_width
438	|| y >= target_height
439	|| x + w <= 0
440	|| y + h <= 0)))
441	{
442	if (background)
443	{
444	new_pmap_width = background->width;
445	new_pmap_height = background->height;
446	result = background;
447
448	if (background_tint != TINT_LEAVE_SAME)
449	{
450	ASImage *tmp = tile_asimage (asv, background, 0, 0,
451	target_width, target_height, background_tint,
452	ASA_XImage, 100, ASIMAGE_QUALITY_DEFAULT);
453	if (tmp)
454	result = tmp;
455	}
456	}
457	else
458	new_pmap_width = new_pmap_height = 0;
459	}
460	else
461	{
462	result = original_asim;
463
464	if (w != original_asim->width
465	|| h != original_asim->height)
466	{
467	result = scale_asimage (asv, original_asim,
468	w, h,
469	ASA_XImage,
470	100, ASIMAGE_QUALITY_DEFAULT);
471	}
472
473	if (background == NULL)
474	{
475	if (bg_flags & BG_TILE)
476	{
477	/* if tiling - pixmap has to be sized exactly as the image,
478	but there is no need to make it bigger than the window! */
479	new_pmap_width = min (result->width, target_width);
480	new_pmap_height = min (result->height, target_height);
481
482	/* we also need to tile our image in both directions */
483	ASImage *tmp = tile_asimage (asv, result,
484	(int)result->width - x,
485	(int)result->height - y,
486	new_pmap_width,
487	new_pmap_height,
488	TINT_LEAVE_SAME, ASA_XImage,
489	100, ASIMAGE_QUALITY_DEFAULT);
490	if (tmp)
491	{
492	if (result != original_asim)
493	destroy_asimage (&result);
494
495	result = tmp;
496	}
497	}
498	}
499	else
500	{
501	/* if blending background and image - pixmap has to be sized same as target window */
502	ASImageLayer *layers = create_image_layers (2);
503
504	layers[0].im = background;
505	layers[0].clip_width = target_width;
506	layers[0].clip_height = target_height;
507	layers[0].tint = background_tint;
508	layers[1].im = result;
509
510	if (bg_flags & BG_TILE)
511	{
512	/* tile horizontally */
513	while (x > 0) x -= (int)result->width;
514	layers[1].dst_x = x;
515	layers[1].clip_width = result->width+target_width;
516	}
517	else
518	{
519	/* clip horizontally */
520	layers[1].dst_x = x;
521	layers[1].clip_width = result->width;
522	}
523
524	if (bg_flags & BG_TILE)
525	{
526	while (y > 0) y -= (int)result->height;
527	layers[1].dst_y = y;
528	layers[1].clip_height = result->height + target_height;
529	}
530	else
531	{
532	layers[1].dst_y = y;
533	layers[1].clip_height = result->height;
534	}
535
536	if (rs[Rs_blendtype])
537	{
538	layers[1].merge_scanlines = blend_scanlines_name2func (rs[Rs_blendtype]);
539	if (layers[1].merge_scanlines == NULL)
540	layers[1].merge_scanlines = alphablend_scanlines;
541	}
542
543	ASImage *tmp = merge_layers (asv, layers, 2, target_width, target_height,
544	ASA_XImage, 0, ASIMAGE_QUALITY_DEFAULT);
545
546	if (tmp)
547	{
548	if (result != original_asim)
549	destroy_asimage (&result);
550
551	result = tmp;
552	}
553
554	free (layers);
555	}
556	}
557
558	bool ret = false;
559
560	if (result)
561	{
562	XGCValues gcv;
563	GC gc;
564
565	/* create Pixmap */
566	if (bg_pixmap == None
567	|| bg_pmap_width != new_pmap_width
568	|| bg_pmap_height != new_pmap_height)
569	{
570	if (bg_pixmap)
571	XFreePixmap (dpy, bg_pixmap);
572	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
573	bg_pmap_width = new_pmap_width;
574	bg_pmap_height = new_pmap_height;
575	}
576	/* fill with background color (if result's not completely overlapping it) */
577	gcv.foreground = pix_colors[Color_bg];
578	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
579
580	int src_x = 0, src_y = 0, dst_x = 0, dst_y = 0;
581	int dst_width = result->width, dst_height = result->height;
582	if (background == NULL)
583	{
584	if (!(bg_flags & BG_TILE))
585	{
586	src_x = make_clip_rectangle (x, result->width , new_pmap_width , dst_x, dst_width );
587	src_y = make_clip_rectangle (y, result->height, new_pmap_height, dst_y, dst_height);
588	}
589
590	if (dst_x > 0 || dst_y > 0
591	|| dst_x + dst_width < new_pmap_width
592	|| dst_y + dst_height < new_pmap_height)
593	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
594	}
595
596	/* put result on pixmap */
597	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
598	asimage2drawable (asv, bg_pixmap, result, gc, src_x, src_y, dst_x, dst_y, dst_width, dst_height, True);
599
600	if (result != background && result != original_asim)
601	destroy_asimage (&result);
602
603	XFreeGC (dpy, gc);
604
605	ret = true;
606	}
607
608	if (background)
609	destroy_asimage (&background);
610
611	return ret;
612	}
613	# endif /* HAVE_AFTERIMAGE */
614
615	# ifdef HAVE_PIXBUF
616	bool
617	rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
618	int src_x, int src_y, int dst_x, int dst_y,
619	unsigned int width, unsigned int height)
620	{
621	XImage *ximage;
622	char *data, *line;
623	int bytes_per_pixel;
624	int width_r, width_g, width_b;
625	int sh_r, sh_g, sh_b;
626	int rowstride;
627	int channels;
628	unsigned char *row;
629
630	if (visual->c_class != TrueColor)
631	return false;
632
633	if (depth == 24 || depth == 32)
634	bytes_per_pixel = 4;
635	else if (depth == 15 || depth == 16)
636	bytes_per_pixel = 2;
637	else
638	return false;
639
640	width_r = ecb_popcount32 (visual->red_mask);
641	width_g = ecb_popcount32 (visual->green_mask);
642	width_b = ecb_popcount32 (visual->blue_mask);
643
644	if (width_r > 8 || width_g > 8 || width_b > 8)
645	return false;
646
647	sh_r = ecb_ctz32 (visual->red_mask);
648	sh_g = ecb_ctz32 (visual->green_mask);
649	sh_b = ecb_ctz32 (visual->blue_mask);
650
651	if (width > INT_MAX / height / bytes_per_pixel)
652	return false;
653
654	data = (char *)malloc (width * height * bytes_per_pixel);
655	if (!data)
656	return false;
657
658	ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
659	width, height, bytes_per_pixel * 8, 0);
660	if (!ximage)
661	{
662	free (data);
663	return false;
664	}
665
666	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
667
668	rowstride = gdk_pixbuf_get_rowstride (pixbuf);
669	channels = gdk_pixbuf_get_n_channels (pixbuf);
670	row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
671	line = data;
672
673	for (int y = 0; y < height; y++)
674	{
675	for (int x = 0; x < width; x++)
676	{
677	unsigned char *pixel = row + x * channels;
678	uint32_t value;
679
680	value = ((pixel[0] >> (8 - width_r)) << sh_r)
681	| ((pixel[1] >> (8 - width_g)) << sh_g)
682	| ((pixel[2] >> (8 - width_b)) << sh_b);
683
684	if (bytes_per_pixel == 4)
685	((uint32_t *)line)[x] = value;
686	else
687	((uint16_t *)line)[x] = value;
688	}
689
690	row += rowstride;
691	line += ximage->bytes_per_line;
692	}
693
694	XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
695	XDestroyImage (ximage);
696	return true;
697	}
698
699	bool
700	rxvt_term::render_image (unsigned long tr_flags)
701	{
702	if (!pixbuf)
703	return false;
704
705	if (tr_flags
706	&& !(bg_flags & BG_HAS_RENDER))
707	return false;
708
709	GdkPixbuf *result;
710
711	int image_width = gdk_pixbuf_get_width (pixbuf);
712	int image_height = gdk_pixbuf_get_height (pixbuf);
713
714	int target_width = szHint.width;
715	int target_height = szHint.height;
716	int new_pmap_width = target_width;
717	int new_pmap_height = target_height;
718
719	int x = 0;
720	int y = 0;
721	int w = 0;
722	int h = 0;
723
724	get_image_geometry (image_width, image_height, w, h, x, y);
725
726	if (!(bg_flags & BG_ROOT_ALIGN)	339	if (!(image.flags & IM_ROOT_ALIGN)
727	&& (x >= target_width	340	&& (x >= target_width
728	|| y >= target_height	341	|| y >= target_height
729	|| x + w <= 0	342	|| x + w <= 0
730	|| y + h <= 0))	343	|| y + h <= 0))
731	return false;	344	return false;
732		345
733	result = pixbuf;	346	rxvt_img *img = image.img->scale (w, h);
734		347
735	if (w != image_width	348	if (image.flags & IM_TILE)
736	|| h != image_height)	349	img->repeat_mode (RepeatNormal);
737	{
738	result = gdk_pixbuf_scale_simple (pixbuf,
739	w, h,
740	GDK_INTERP_BILINEAR);
741	}
742
743	if (!result)
744	return false;
745
746	bool ret = false;
747
748	XGCValues gcv;
749	GC gc;
750	Pixmap root_pmap;
751
752	image_width = gdk_pixbuf_get_width (result);
753	image_height = gdk_pixbuf_get_height (result);
754
755	if (tr_flags)
756	{
757	root_pmap = bg_pixmap;
758	bg_pixmap = None;
759	}
760	else	350	else
761	{	351	img->repeat_mode (RepeatNone);
		352	img->sub_rect (-x, -y, target_width, target_height)->replace (img);
		353
762	if (bg_flags & BG_TILE)	354	if (bg_flags & BG_IS_VALID)
763	{
764	new_pmap_width = min (image_width, target_width);
765	new_pmap_height = min (image_height, target_height);
766	}
767	}	355	{
768		356	double factor = image.alpha * 1. / 0xffff;
769	if (bg_pixmap == None	357	bg_img->blend (img, factor)->replace (img);
770	|| bg_pmap_width != new_pmap_width
771	|| bg_pmap_height != new_pmap_height)
772	{	358	}
773	if (bg_pixmap)
774	XFreePixmap (dpy, bg_pixmap);
775	bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
776	bg_pmap_width = new_pmap_width;
777	bg_pmap_height = new_pmap_height;
778	}
779		359
780	gcv.foreground = pix_colors[Color_bg];
781	gc = XCreateGC (dpy, vt, GCForeground, &gcv);
782
783	if (gc)
784	{
785	if (bg_flags & BG_TILE)
786	{
787	Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
788	pixbuf_to_pixmap (result, tile, gc,
789	0, 0,
790	0, 0,
791	image_width, image_height);
792
793	gcv.tile = tile;
794	gcv.fill_style = FillTiled;
795	gcv.ts_x_origin = x;
796	gcv.ts_y_origin = y;
797	XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
798
799	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
800	XFreePixmap (dpy, tile);
801	}
802	else
803	{
804	int src_x, src_y, dst_x, dst_y;
805	int dst_width, dst_height;
806
807	src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
808	src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
809
810	if (dst_x > 0 || dst_y > 0
811	|| dst_x + dst_width < new_pmap_width
812	|| dst_y + dst_height < new_pmap_height)
813	XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
814
815	if (dst_x < new_pmap_width && dst_y < new_pmap_height)
816	pixbuf_to_pixmap (result, bg_pixmap, gc,
817	src_x, src_y,
818	dst_x, dst_y,
819	dst_width, dst_height);
820	}
821
822	#if XRENDER
823	if (tr_flags)
824	{
825	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);	360	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
		361	img->convert_format (format, pix_colors [Color_bg])->replace (img);
826		362
827	Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0);	363	delete bg_img;
		364	bg_img = img;
828		365
829	Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
830
831	Picture mask = create_xrender_mask (dpy, vt, False, False);
832
833	XRenderColor mask_c;
834
835	mask_c.alpha = 0x8000;
836	mask_c.red =
837	mask_c.green =
838	mask_c.blue = 0;
839	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
840
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	bool ret = false;
871	const char *p = strchr (file, ';');	387	const char *p = strchr (file, ';');
872		388
873	if (p)	389	if (p)
874	{	390	{
875	size_t len = p - file;	391	size_t len = p - file;
…		…
877	memcpy (f, file, len);	393	memcpy (f, file, len);
878	f[len] = '\0';	394	f[len] = '\0';
879	file = f;	395	file = f;
880	}	396	}
881		397
882	# ifdef HAVE_AFTERIMAGE	398	bool ret = set_file (s, file);
883	if (!asimman)	399	alpha = 0x8000;
884	asimman = create_generic_imageman (rs[Rs_path]);
885	ASImage *image = get_asimage (asimman, file, 0xFFFFFFFF, 100);
886	if (image)
887	{
888	if (original_asim)
889	safe_asimage_destroy (original_asim);
890	original_asim = image;
891	bg_flags |= BG_IS_FROM_FILE | BG_CLIENT_RENDER;
892	ret = true;
893	}
894	# endif
895
896	# ifdef HAVE_PIXBUF
897	GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
898	if (image)
899	{
900	if (pixbuf)
901	g_object_unref (pixbuf);
902	pixbuf = image;
903	bg_flags |= BG_IS_FROM_FILE;
904	ret = true;
905	}
906	# endif
907
908	if (ret)	400	if (ret)
909	{
910	if (p)
911	bg_set_geometry (p + 1);	401	set_geometry (p ? p + 1 : "");
912	else
913	bg_set_default_geometry ();
914	}
915
916	return ret;	402	return ret;
917	}	403	}
918		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;
		411	}
		412
919	# endif /* BG_IMAGE_FROM_FILE */	413	# endif /* BG_IMAGE_FROM_FILE */
920		414
921	# ifdef ENABLE_TRANSPARENCY
922	bool	415	bool
923	rxvt_term::bg_set_transparent ()	416	image_effects::set_blur (const char *geom)
924	{
925	if (!(bg_flags & BG_IS_TRANSPARENT))
926	{
927	bg_flags |= BG_IS_TRANSPARENT;
928	return true;
929	}
930
931	return false;
932	}
933
934	bool
935	rxvt_term::bg_set_blur (const char *geom)
936	{	417	{
937	bool changed = false;	418	bool changed = false;
938	unsigned int hr, vr;	419	unsigned int hr, vr;
939	int junk;	420	int junk;
940	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);	421	int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
…		…
957	{	438	{
958	changed = true;	439	changed = true;
959	v_blurRadius = vr;	440	v_blurRadius = vr;
960	}	441	}
961		442
962	if (h_blurRadius == 0 || v_blurRadius == 0)
963	bg_flags &= ~BG_NEEDS_BLUR;
964	else
965	bg_flags |= BG_NEEDS_BLUR;
966
967	return changed;	443	return changed;
968	}	444	}
969		445
970	void
971	rxvt_term::set_tint_shade_flags ()
972	{
973	rgba c;
974	bool has_shade = shade != 100;
975
976	bg_flags &= ~BG_TINT_FLAGS;
977
978	if (bg_flags & BG_TINT_SET)
979	{
980	tint.get (c);
981	if (!has_shade
982	&& (c.r <= 0x00ff || c.r >= 0xff00)
983	&& (c.g <= 0x00ff || c.g >= 0xff00)
984	&& (c.b <= 0x00ff || c.b >= 0xff00))
985	bg_flags |= BG_TINT_BITAND;
986	}
987
988	if (has_shade || (bg_flags & BG_TINT_SET))
989	bg_flags |= BG_NEEDS_TINT;
990	}
991
992	bool	446	bool
993	rxvt_term::bg_set_tint (rxvt_color &new_tint)	447	image_effects::set_tint (const rxvt_color &new_tint)
994	{	448	{
995	if (!(bg_flags & BG_TINT_SET) || tint != new_tint)	449	if (!tint_set || tint != new_tint)
996	{	450	{
997	tint = new_tint;	451	tint = new_tint;
998	bg_flags |= BG_TINT_SET;	452	tint_set = true;
999	set_tint_shade_flags ();	453
1000	return true;	454	return true;
1001	}	455	}
1002		456
1003	return false;	457	return false;
1004	}	458	}
1005		459
1006	bool	460	bool
1007	rxvt_term::bg_set_shade (const char *shade_str)	461	image_effects::set_shade (const char *shade_str)
1008	{	462	{
1009	int new_shade = atoi (shade_str);	463	int new_shade = atoi (shade_str);
1010		464
1011	clamp_it (new_shade, -100, 200);	465	clamp_it (new_shade, -100, 200);
1012	if (new_shade < 0)	466	if (new_shade < 0)
1013	new_shade = 200 - (100 + new_shade);	467	new_shade = 200 - (100 + new_shade);
1014		468
1015	if (new_shade != shade)	469	if (new_shade != shade)
1016	{	470	{
1017	shade = new_shade;	471	shade = new_shade;
1018	set_tint_shade_flags ();
1019	return true;	472	return true;
1020	}	473	}
1021		474
1022	return false;	475	return false;
1023	}	476	}
1024		477
1025	#if XRENDER	478	# if ENABLE_TRANSPARENCY
1026	static void
1027	get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1028	{
1029	double sigma = radius / 2.0;
1030	double scale = sqrt (2.0 * M_PI) * sigma;
1031	double sum = 0.0;
1032
1033	for (int i = 0; i < width; i++)
1034	{
1035	double x = i - width / 2;
1036	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1037	sum += kernel[i];
1038	}
1039
1040	params[0] = XDoubleToFixed (width);
1041	params[1] = XDoubleToFixed (1);
1042
1043	for (int i = 0; i < width; i++)
1044	params[i+2] = XDoubleToFixed (kernel[i] / sum);
1045	}
1046	#endif
1047
1048	bool
1049	rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1050	{
1051	bool ret = false;
1052	#if XRENDER
1053	if (!(bg_flags & BG_HAS_RENDER_CONV))
1054	return false;
1055
1056	int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1057	double *kernel = (double *)malloc (size * sizeof (double));
1058	XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1059
1060	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1061
1062	Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1063	Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1064
1065	if (kernel && params)
1066	{
1067	size = h_blurRadius * 2 + 1;
1068	get_gaussian_kernel (h_blurRadius, size, kernel, params);
1069
1070	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1071	XRenderComposite (dpy,
1072	PictOpSrc,
1073	src,
1074	None,
1075	dst,
1076	0, 0,
1077	0, 0,
1078	0, 0,
1079	width, height);
1080
1081	size = v_blurRadius * 2 + 1;
1082	get_gaussian_kernel (v_blurRadius, size, kernel, params);
1083	::swap (params[0], params[1]);
1084
1085	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1086	XRenderComposite (dpy,
1087	PictOpSrc,
1088	src,
1089	None,
1090	dst,
1091	0, 0,
1092	0, 0,
1093	0, 0,
1094	width, height);
1095
1096	ret = true;
1097	}
1098
1099	free (kernel);
1100	free (params);
1101	XRenderFreePicture (dpy, src);
1102	XRenderFreePicture (dpy, dst);
1103	#endif
1104	return ret;
1105	}
1106
1107	bool
1108	rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1109	{
1110	bool ret = false;
1111
1112	if (bg_flags & BG_TINT_BITAND)
1113	{
1114	XGCValues gcv;
1115	GC gc;
1116
1117	/* In this case we can tint image server-side getting significant
1118	* performance improvements, as we eliminate XImage transfer
1119	*/
1120	gcv.foreground = Pixel (tint);
1121	gcv.function = GXand;
1122	gcv.fill_style = FillSolid;
1123	gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
1124	if (gc)
1125	{
1126	XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1127	ret = true;
1128	XFreeGC (dpy, gc);
1129	}
1130	}
1131	# if XRENDER
1132	else if (bg_flags & BG_HAS_RENDER)
1133	{
1134	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1135
1136	if (bg_flags & BG_TINT_SET)
1137	tint.get (c);
1138
1139	if (shade <= 100)
1140	{
1141	c.r = c.r * shade / 100;
1142	c.g = c.g * shade / 100;
1143	c.b = c.b * shade / 100;
1144	}
1145	else
1146	{
1147	c.r = c.r * (200 - shade) / 100;
1148	c.g = c.g * (200 - shade) / 100;
1149	c.b = c.b * (200 - shade) / 100;
1150	}
1151
1152	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1153
1154	Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
1155
1156	Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1157
1158	Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1159
1160	XRenderColor mask_c;
1161
1162	mask_c.alpha = 0xffff;
1163	mask_c.red =
1164	mask_c.green =
1165	mask_c.blue = 0;
1166	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1167
1168	mask_c.alpha = 0;
1169	mask_c.red = 0xffff - c.r;
1170	mask_c.green = 0xffff - c.g;
1171	mask_c.blue = 0xffff - c.b;
1172	XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
1173
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.alpha = 0;
1179	mask_c.red =
1180	mask_c.green =
1181	mask_c.blue = 0xffff * (shade - 100) / 100;
1182	XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
1183
1184	XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
1185	}
1186
1187	ret = true;
1188
1189	XRenderFreePicture (dpy, mask_pic);
1190	XRenderFreePicture (dpy, overlay_pic);
1191	XRenderFreePicture (dpy, back_pic);
1192	}
1193	# endif
1194
1195	return ret;
1196	}
1197
1198	/*	479	/*
1199	* 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
1200	* 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
1201	* our window.	482	* our window.
1202	*/	483	*/
1203	unsigned long	484	bool
1204	rxvt_term::make_transparency_pixmap ()	485	rxvt_term::render_root_image ()
1205	{	486	{
1206	unsigned long result = 0;
1207
1208	/* 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
1209	* be always up-to-date, so let's use it :	488	* be always up-to-date, so let's use it :
1210	*/	489	*/
1211	int screen = display->screen;	490	int screen = display->screen;
1212	int root_depth = DefaultDepth (dpy, screen);
1213	int root_width = DisplayWidth (dpy, screen);	491	int root_width = DisplayWidth (dpy, screen);
1214	int root_height = DisplayHeight (dpy, screen);	492	int root_height = DisplayHeight (dpy, screen);
1215	unsigned int root_pmap_width, root_pmap_height;
1216	int window_width = szHint.width;	493	int window_width = szHint.width;
1217	int window_height = szHint.height;	494	int window_height = szHint.height;
1218	int sx, sy;	495	int sx, sy;
1219	XGCValues gcv;
1220	GC gc;
1221		496
1222	sx = target_x;	497	sx = target_x;
1223	sy = target_y;	498	sy = target_y;
		499
		500	if (!root_img)
		501	return false;
1224		502
1225	/* 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 : */
1226	if (sx + window_width <= 0 || sy + window_height <= 0	504	if (sx + window_width <= 0 || sy + window_height <= 0
1227	|| sx >= root_width || sy >= root_height)	505	|| sx >= root_width || sy >= root_height)
1228	return 0;	506	return 0;
1229		507
1230	// validate root pixmap and get its size	508	while (sx < 0) sx += root_img->w;
1231	if (root_pixmap != None)	509	while (sy < 0) sy += root_img->h;
1232	{
1233	Window wdummy;
1234	int idummy;
1235	unsigned int udummy;
1236		510
1237	allowedxerror = -1;	511	rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
1238		512
1239	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy))	513	if (root_effects.need_blur ())
1240	root_pixmap = None;	514	img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
1241		515
1242	allowedxerror = 0;	516	if (root_effects.need_tint ())
1243	}	517	tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1244		518
1245	Pixmap recoded_root_pmap = root_pixmap;
1246
1247	if (root_pixmap != None && root_depth != depth)
1248	{
1249	#if XRENDER
1250	if (bg_flags & BG_HAS_RENDER)
1251	{
1252	recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1253
1254	XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1255	Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1256
1257	XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);	519	XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1258	Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0);	520	img->convert_format (format, pix_colors [Color_bg])->replace (img);
1259		521
1260	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;
1261		524
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
1299	if (!(bg_flags & BG_CLIENT_RENDER))
1300	{
1301	if (bg_flags & BG_NEEDS_BLUR)
1302	{
1303	if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1304	result &= ~BG_NEEDS_BLUR;
1305	}
1306	if (bg_flags & BG_NEEDS_TINT)
1307	{
1308	if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1309	result &= ~BG_NEEDS_TINT;
1310	}
1311	# ifndef HAVE_AFTERIMAGE
1312	if (result & BG_NEEDS_TINT)
1313	{
1314	XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1315	if (ximage)
1316	{
1317	/* our own client-side tinting */
1318	tint_ximage (DefaultVisual (dpy, display->screen), ximage);
1319
1320	XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1321	XDestroyImage (ximage);
1322	}
1323	}
1324	# endif
1325	} /* server side rendering completed */
1326
1327	XFreeGC (dpy, gc);
1328	}
1329
1330	if (recoded_root_pmap != root_pixmap)
1331	XFreePixmap (dpy, recoded_root_pmap);
1332
1333	return result;	525	return true;
1334	}	526	}
1335		527
1336	void	528	void
1337	rxvt_term::bg_set_root_pixmap ()	529	rxvt_term::bg_set_root_pixmap ()
1338	{	530	{
1339	Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);	531	delete root_img;
1340	if (new_root_pixmap == None)	532	root_img = rxvt_img::new_from_root (this);
1341	new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1342
1343	root_pixmap = new_root_pixmap;
1344	}	533	}
1345	# endif /* ENABLE_TRANSPARENCY */	534	# endif /* ENABLE_TRANSPARENCY */
1346		535
1347	bool	536	void
1348	rxvt_term::bg_render ()	537	rxvt_term::bg_render ()
1349	{	538	{
1350	unsigned long tr_flags = 0;	539	if (bg_flags & BG_INHIBIT_RENDER)
		540	return;
1351		541
1352	bg_invalidate ();	542	bg_invalidate ();
1353	# ifdef ENABLE_TRANSPARENCY	543	# if ENABLE_TRANSPARENCY
1354	if (bg_flags & BG_IS_TRANSPARENT)	544	if (bg_flags & BG_IS_TRANSPARENT)
1355	{	545	{
1356	/* we need to re-generate transparency pixmap in that case ! */	546	/* we need to re-generate transparency pixmap in that case ! */
1357	tr_flags = make_transparency_pixmap ();
1358	if (tr_flags == 0)
1359	return false;
1360	bg_flags |= BG_IS_VALID;
1361	}
1362	# endif
1363
1364	# ifdef BG_IMAGE_FROM_FILE
1365	if ((bg_flags & BG_IS_FROM_FILE)
1366	|| (tr_flags & BG_EFFECTS_FLAGS))
1367	{
1368	if (render_image (tr_flags))	547	if (render_root_image ())
1369	bg_flags |= BG_IS_VALID;	548	bg_flags |= BG_IS_VALID;
1370	}	549	}
1371	# endif	550	# endif
1372		551
		552	# if BG_IMAGE_FROM_FILE
		553	if (fimage.img)
		554	{
		555	if (render_image (fimage))
		556	bg_flags |= BG_IS_VALID;
		557	}
		558	# endif
		559
1373	if (!(bg_flags & BG_IS_VALID))	560	if (!(bg_flags & BG_IS_VALID))
1374	{	561	{
1375	if (bg_pixmap != None)	562	delete bg_img;
1376	{	563	bg_img = 0;
1377	XFreePixmap (dpy, bg_pixmap);
1378	bg_pixmap = None;
1379	}
1380	}	564	}
1381		565
1382	scr_recolour (false);	566	scr_recolour (false);
1383	bg_flags |= BG_NEEDS_REFRESH;	567	bg_flags |= BG_NEEDS_REFRESH;
1384		568
1385	bg_valid_since = ev::now ();	569	bg_valid_since = ev::now ();
1386
1387	return true;
1388	}	570	}
1389		571
1390	void	572	void
1391	rxvt_term::bg_init ()	573	rxvt_term::bg_init ()
1392	{	574	{
1393	#ifdef ENABLE_TRANSPARENCY	575	#if BG_IMAGE_FROM_FILE
1394	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	}
1395	#endif	582	#endif
1396
1397	bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
1398	#if XRENDER
1399	int major, minor;
1400	if (XRenderQueryVersion (dpy, &major, &minor))
1401	bg_flags |= BG_HAS_RENDER;
1402	XFilters *filters = XRenderQueryFilters (dpy, vt);
1403	if (filters)
1404	{
1405	for (int i = 0; i < filters->nfilter; i++)
1406	if (!strcmp (filters->filter[i], FilterConvolution))
1407	bg_flags |= BG_HAS_RENDER_CONV;
1408
1409	XFree (filters);
1410	}
1411	#endif
1412	}
1413
1414	#endif /* HAVE_BG_PIXMAP */
1415
1416	#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1417	/* based on code from aterm-0.4.2 */
1418
1419	static inline void
1420	fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1421	{
1422	for (int i = 0; i <= mask >> sh; i++)
1423	{
1424	uint32_t tmp;
1425	tmp = i * high;
1426	tmp += (mask >> sh) * low;
1427	lookup[i] = (tmp / 0xffff) << sh;
1428	}
1429	}	583	}
1430		584
1431	void	585	void
1432	rxvt_term::tint_ximage (Visual *visual, XImage *ximage)	586	rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1433	{	587	{
1434	int sh_r, sh_g, sh_b;
1435	uint32_t mask_r, mask_g, mask_b;
1436	uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1437	unsigned short low;
1438	int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1439
1440	if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1441
1442	/* for convenience */
1443	mask_r = visual->red_mask;
1444	mask_g = visual->green_mask;
1445	mask_b = visual->blue_mask;
1446
1447	/* boring lookup table pre-initialization */
1448	switch (ximage->depth)
1449	{
1450	case 15:
1451	if ((mask_r != 0x7c00) ||
1452	(mask_g != 0x03e0) ||
1453	(mask_b != 0x001f))
1454	return;
1455	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1456	lookup_r = lookup;
1457	lookup_g = lookup+32;
1458	lookup_b = lookup+32+32;
1459	sh_r = 10;
1460	sh_g = 5;
1461	sh_b = 0;
1462	break;
1463	case 16:
1464	if ((mask_r != 0xf800) ||
1465	(mask_g != 0x07e0) ||
1466	(mask_b != 0x001f))
1467	return;
1468	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1469	lookup_r = lookup;
1470	lookup_g = lookup+32;
1471	lookup_b = lookup+32+64;
1472	sh_r = 11;
1473	sh_g = 5;
1474	sh_b = 0;
1475	break;
1476	case 24:
1477	if ((mask_r != 0xff0000) ||
1478	(mask_g != 0x00ff00) ||
1479	(mask_b != 0x0000ff))
1480	return;
1481	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1482	lookup_r = lookup;
1483	lookup_g = lookup+256;
1484	lookup_b = lookup+256+256;
1485	sh_r = 16;
1486	sh_g = 8;
1487	sh_b = 0;
1488	break;
1489	case 32:
1490	if ((mask_r != 0xff0000) ||
1491	(mask_g != 0x00ff00) ||
1492	(mask_b != 0x0000ff))
1493	return;
1494	lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1495	lookup_r = lookup;
1496	lookup_g = lookup+256;
1497	lookup_b = lookup+256+256;
1498	sh_r = 16;
1499	sh_g = 8;
1500	sh_b = 0;
1501	break;
1502	default:
1503	return; /* we do not support this color depth */
1504	}
1505
1506	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);	588	rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1507		589
1508	if (bg_flags & BG_TINT_SET)	590	if (tint_set)
1509	tint.get (c);	591	tint.get (c);
1510		592
1511	/* prepare limits for color transformation (each channel is handled separately) */
1512	if (shade > 100)	593	if (shade > 100)
1513	{	594	{
1514	c.r = c.r * (200 - shade) / 100;	595	c.r = c.r * (200 - shade) / 100;
1515	c.g = c.g * (200 - shade) / 100;	596	c.g = c.g * (200 - shade) / 100;
1516	c.b = c.b * (200 - shade) / 100;	597	c.b = c.b * (200 - shade) / 100;
1517
1518	low = 0xffff * (shade - 100) / 100;
1519	}	598	}
1520	else	599	else
1521	{	600	{
1522	c.r = c.r * shade / 100;	601	c.r = c.r * shade / 100;
1523	c.g = c.g * shade / 100;	602	c.g = c.g * shade / 100;
1524	c.b = c.b * shade / 100;	603	c.b = c.b * shade / 100;
1525
1526	low = 0;
1527	}
1528
1529	/* fill our lookup tables */
1530	fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1531	fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1532	fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1533
1534	/* apply table to input image (replacing colors by newly calculated ones) */
1535	if (ximage->bits_per_pixel == 32
1536	&& (ximage->depth == 24 || ximage->depth == 32)
1537	&& ximage->byte_order == host_byte_order)
1538	{	604	}
1539	uint32_t *p1, *pf, *p, *pl;
1540	p1 = (uint32_t *) ximage->data;
1541	pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1542		605
1543	while (p1 < pf)	606	img->contrast (c.r, c.g, c.b, c.a);
1544	{	607
1545	p = p1;	608	if (shade > 100)
1546	pl = p1 + ximage->width;
1547	for (; p < pl; p++)
1548	{
1549	*p = lookup_r[(*p & 0xff0000) >> 16] |
1550	lookup_g[(*p & 0x00ff00) >> 8] |
1551	lookup_b[(*p & 0x0000ff)] |
1552	(*p & 0xff000000);
1553	}
1554	p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1555	}
1556	}	609	{
1557	else	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);
1558	{	615	}
1559	for (int y = 0; y < ximage->height; y++)
1560	for (int x = 0; x < ximage->width; x++)
1561	{
1562	unsigned long pixel = XGetPixel (ximage, x, y);
1563	pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1564	lookup_g[(pixel & mask_g) >> sh_g] |
1565	lookup_b[(pixel & mask_b) >> sh_b];
1566	XPutPixel (ximage, x, y, pixel);
1567	}
1568	}
1569
1570	free (lookup);
1571	}	616	}
1572	#endif /* defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) */	617
		618	#endif /* HAVE_BG_PIXMAP */

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